CN113472496B - A multi-channel processing method and related equipment - Google Patents

Abstract

An embodiment of the present application provides a multi-channel processing method and related equipment. The method includes generating a first message by an access point AP, the first message includes a first preamble and a second preamble, and the first preamble includes a first Bandwidth information. The first bandwidth information is configured according to the bandwidth of the first channel occupied by the first group of station STAs. The second preamble includes second bandwidth information. The second bandwidth information is configured according to the bandwidth of the first channel occupied by the second group of station STAs. The bandwidth of the occupied second channel is configured; the AP sends the first message to the first group of STAs and the second group of STAs, the first message includes the first data and the second data, and the AP receives the first message from the first group of STAs The first response frame and the second response frame of the second group of STAs, using the embodiment of the present application, can make full use of channel resources and increase the overall air interface rate.

Description

A multi-channel processing method and related equipment

technical field

The present application relates to the technical field of communications, and in particular to a multi-channel processing method and related equipment.

Background technique

With the continuous development of business applications, the requirements for the network are getting higher and higher. In order to meet the needs of business development, wireless Internet access WiFi technology is also gradually evolving to support higher and higher speeds. However, when the bandwidth supported by the station is lower than the bandwidth capability supported by the access point, data transmission can only be performed according to the bandwidth capability supported by the station, thus causing waste. Therefore, how to make full use of channel resources and increase the overall air interface rate is a technical issue being studied by those skilled in the art.

Contents of the invention

The embodiment of the present application discloses a multi-channel processing method and related equipment, which can make full use of channel resources and increase the overall air interface rate.

The first aspect of the embodiment of the present application discloses a multi-channel processing method, including:

The access point AP generates a first message, the first message includes a first preamble and a second preamble, the first preamble includes first bandwidth information, and the first bandwidth information is based on the first preamble The bandwidth of the first channel occupied by a group of station STAs is configured, the second preamble includes second bandwidth information, and the second bandwidth information is based on the bandwidth of the second channel occupied by the second group of station STAs Configured, the first channel has no intersection with the second channel, and the sum of the bandwidth of the first channel and the bandwidth of the second channel is less than or equal to the bandwidth supported by the AP;

The AP sends the first packet to the first group of STAs and the second group of STAs, the first packet includes first data and second data, and the first preamble is used to indicate that the The first group of STAs uses the first bandwidth information to receive the first data, and the second preamble is used to instruct the second group of STAs to use the second bandwidth information to receive the second data , the first group of STAs includes at least one STA, and the second group of STAs includes at least one STA;

The AP receives a first response frame from the first group of STAs and a second response frame from the second group of STAs, the first response frame is used to notify the AP that the first group of STAs have received the the first data, and the second response frame is used to notify the AP that the second group of STAs has received the second data.

In the above method, when the bandwidth capability supported by the access point AP is greater than the bandwidth capability supported by the station STA, in the downlink direction, the AP can assign subcarriers for receiving data to the STA by modifying the preamble , that is, the first message includes the first preamble and the second preamble, the first group of STAs obtains the subcarrier allocated by the AP to the first group of STAs by identifying the first preamble, and obtains the first data according to the subcarrier, and the second The two groups of STAs obtain the subcarriers allocated by the AP to the second group of STAs by identifying the second preamble and obtain the second data according to the subcarriers. Through multi-channel processing, the resources of the first channel and the second channel can be fully utilized to avoid If the AP and STA do not support high-bandwidth capabilities, they can only use one channel according to the negotiation of lower bandwidth capabilities, which causes waste and reduces the overall air interface rate. Data is sent and received on the first channel and the second channel at the same time. , to avoid interference caused by asynchronous data transmission and reception, and to inform the AP in time by sending a response frame to the AP through the STA that the STA has received the data, so as to avoid resource waste caused by the continuous waiting of the AP.

In an optional solution, the first preamble includes first spectrum allocation information, where the first spectrum allocation information is used to indicate the frequency domain resource for the first group of STAs to receive the first data, the The second preamble includes second frequency spectrum allocation information, where the second channel allocation information is used to indicate frequency domain resources for the second group of STAs to receive the second data.

In yet another optional solution, the AP determines the service flow of the first channel and the service flow of the second channel;

When the difference between the service flow of the first channel and the service flow of the second channel is greater than a first threshold, the AP sends a first notification message to some STAs in the first group of STAs, and the first notification message is sent by the AP to some STAs in the first group of STAs. A notification message is used to instruct some STAs in the first group of STAs to switch from the first channel to the second channel to become the second group of STAs; When the difference of service flow of a channel is greater than the first threshold, the AP sends a second notification message to some STAs in the second group of STAs, the second notification message is used to indicate that the second group Some of the STAs switch from the second channel to the first channel to become the first group of STAs.

In the above method, the AP flexibly guides the STA on the first channel or the second channel by estimating the service flow of the channel. In this way, it can avoid the heavy load on one channel and the heavy load on the other channel. In extreme cases like this, it is possible to comprehensively consider the traffic conditions on the channel and use resources reasonably.

In another optional solution, the AP sends a first management frame on the first channel, and the first management frame is used for the first group of STAs to determine the connection status with the AP;

The AP sends a second management frame on the second channel, and the second management frame is used for the second group of STAs to determine a connection state with the AP.

In the above method, the AP sends the first management frame on the first channel and the second management frame on the second channel, so that the STA can listen to the management frame on the channel, let the STA know that there is an AP nearby, and can communicate with the AP. The AP keeps the connection, so that data communication can be carried out quickly.

In yet another optional solution, the AP sends a first trigger frame to the first group of STAs on the first channel, where the first trigger frame includes the first spectrum allocation information, and the The first frequency spectrum allocation information is used to indicate the frequency domain resources of the first group of STAs to send the third data to the AP, the first trigger frame includes a first duration, and the first duration is the third data in the time of transmission on said first channel;

The AP receives third data sent by the first group of STAs on the first channel;

The AP sends a third response frame to the first group of STAs on the first channel, and the third response frame is used to notify the first group of STAs that the AP has received the third data;

The AP sends a second trigger frame to the second group of STAs on the second channel, the second trigger frame includes the second spectrum allocation information, and the second spectrum allocation information is used to indicate the The second group of STAs sends frequency domain resources of fourth data to the AP, the second trigger frame includes a second duration, and the second duration is the time when the fourth data is transmitted on the second channel, Wherein, the first trigger frame and the second trigger frame are used to indicate that the transmission time of the third data on the first channel is the same as the transmission time of the fourth data on the second channel ;

The AP receives fourth data sent by the second group of STAs on the second channel;

The AP sends a fourth response frame to the second group of STAs on the second channel, where the fourth response frame is used to notify the second group of STAs that the AP has received the fourth data.

In the above method, when the bandwidth capability supported by the access point AP is greater than the bandwidth capability supported by the station STA, in the uplink direction, the AP sends a trigger frame to the STA to inform the STA to send data to the AP The sub-carriers in the information time can make full use of the resources of the first channel and the second channel through multi-channel processing, which improves the overall air interface rate and avoids that the bandwidth capabilities of APs and STAs are inconsistent and can only be performed according to low bandwidth capabilities. During the negotiation, only one of the channel resources is used, resulting in a waste of resources, and the trigger frame indicates that the data transmission time on the first channel and the second channel are the same, avoiding interference, ensuring data quality, and sending STA information to the STA through the AP. The method of sending a response frame notifies STAAP that the data has been received in time to avoid waste of resources caused by STA's continuous waiting.

In yet another optional solution, the AP sends the first preamble and the first data to the first group of STAs on the first channel and transmits the first data to the first group of STAs on the second channel at the same time. sending the second preamble and the second data to the second group of STAs, where the transmission time of the first preamble and the first data on the first channel is different from the transmission time of the first channel The transmission time of the second preamble and the second data on the second channel are the same.

The second aspect of the embodiment of the present application discloses a multi-channel processing method, including:

The station STA receives the first message sent by the access point AP, where the first message includes a first preamble and a second preamble;

The station STA identifies the first preamble in the first packet or the second preamble in the first packet, the first preamble includes first bandwidth information, and the first bandwidth The information is configured according to the bandwidth of the first channel occupied by the first group of station STAs, the second preamble includes second bandwidth information, and the second bandwidth information is based on the second channel occupied by the second group of station STAs. Channel bandwidth configuration;

The station STA receives the first data according to the first bandwidth information, or receives the second data according to the second bandwidth information, and the first message includes the first data and the second data, There is no intersection between the first channel and the second channel, and the sum of the bandwidth of the first channel and the bandwidth of the second channel is less than or equal to the bandwidth supported by the AP, and the station STA is the second A group of station STAs or a second group of station STAs, the first group of STAs includes at least one STA, and the second group of STAs includes at least one STA;

The STA sends a first response frame to the AP on the first channel, and the first response frame is used to notify the AP that the STA has received the first data; or the STA is on the second channel sending a second response frame to the AP, where the second response frame is used to notify the AP that the STA has received the second data.

In the above method, when the bandwidth capability supported by the access point AP is greater than the bandwidth capability supported by the station STA, in the downlink direction, the AP can assign subcarriers for receiving data to the STA by modifying the preamble , that is, the first message includes the first preamble and the second preamble, the first group of STAs obtains the subcarrier allocated by the AP to the first group of STAs by identifying the first preamble, and obtains the first data according to the subcarrier, and the second The two groups of STAs obtain the subcarriers allocated by the AP to the second group of STAs by identifying the second preamble and obtain the second data according to the subcarriers. Through multi-channel processing, the resources of the first channel and the second channel can be fully utilized to avoid If the AP and STA do not support high-bandwidth capabilities, they can only use one channel according to the negotiation of lower bandwidth capabilities, which causes waste and reduces the overall air interface rate. Data is sent and received on the first channel and the second channel at the same time. , to avoid interference caused by asynchronous data transmission and reception, and to inform the AP in time by sending a response frame to the AP through the STA that the STA has received the data, so as to avoid resource waste caused by the continuous waiting of the AP.

In an optional solution, the first preamble includes first spectrum allocation information, where the first spectrum allocation information is used to indicate the frequency domain resource for the first group of STAs to receive the first data, and the first The second preamble includes second frequency spectrum allocation information, where the second channel allocation information is used to indicate frequency domain resources for the second group of STAs to receive the second data.

In yet another optional solution, when the difference between the service flow of the first channel and the service flow of the second channel is greater than a first threshold, some of the STAs receive the information sent by the AP. A first notification message, where the first notification message is used to instruct some of the STAs to switch from the first channel to the second channel; or

When the difference between the service flow of the second channel and the service flow of the first channel is greater than a first threshold, some of the STAs receive a second notification message sent by the AP, and the second notification The message is used to instruct some of the STAs to switch from the second channel to the first channel.

In the above method, the AP flexibly guides the STA on the first channel or the second channel by estimating the service flow of the channel. In this way, it can avoid the heavy load on one channel and the heavy load on the other channel. In light extreme cases, it can comprehensively consider the traffic conditions on the channel and use resources reasonably.

In another optional solution, the STA receives the first management frame sent by the AP on the first channel, and the first management frame is used for the first group of STAs to determine the relationship with the AP. Connection Status;

The STA receives a second management frame sent by the AP on the second channel, and the second management frame is used for the second group of STAs to determine a connection status with the AP.

In the above method, the AP sends the first management frame on the first channel and the second management frame on the second channel, so that the STA can listen to the management frame on the channel, let the STA know that there is an AP nearby, and can communicate with the AP. The AP keeps connected and performs data communication quickly.

In yet another optional solution, the STA receives a first trigger frame sent by the AP on the first channel, the first trigger frame includes the first spectrum allocation information, and the first The spectrum allocation information is used to instruct the STA to send the frequency domain resource of the third data to the AP, and the second trigger frame includes a second duration, and the second duration is the fourth data on the second channel the time of the upload;

The STA sends the third data to the AP;

The STA receives a third response frame from the AP, where the third response frame is used to notify the STA that the AP has received the third data; or

The STA receives a second trigger frame sent by the AP on the second channel, the second trigger frame includes the second spectrum allocation information, and the second spectrum allocation information is used to instruct the STA to The AP sends the frequency domain resource of the fourth data, the second trigger frame includes a second duration, and the second duration is the time when the fourth data is transmitted on the second channel, wherein the first A trigger frame and the second trigger frame are used to indicate that the transmission time of the third data on the first channel is the same as the transmission time of the fourth data on the second channel;

The STA sends the fourth data to the AP;

The STA receives a fourth response frame from the AP, where the fourth response frame is used to notify the STA that the AP has received the fourth data.

In the above method, when the bandwidth capability supported by the access point AP is greater than the bandwidth capability supported by the station STA, in the uplink direction, the AP sends a trigger frame to the STA to inform the STA to send data to the AP The subcarriers in the information time can make full use of the resources of the first channel and the second channel through multi-channel processing, and send and receive data on the first channel and the second channel at the same time, so as to avoid that the AP and STA do not support high-bandwidth capabilities. Only one channel can be negotiated according to the lower bandwidth capacity, which causes waste and reduces the overall air interface rate, and the trigger frame indicates that the transmission time of data on the first channel and the second channel is the same to avoid interference , to ensure the data quality, and to inform the STA in time by sending a response frame to the STA through the AP that the AP has received the data, so as to avoid resource waste caused by the STA's continuous waiting.

The third aspect of the embodiment of the present application discloses a multi-channel processing device, including:

A processing unit, configured to generate a first message, the first message includes a first preamble and a second preamble, the first preamble includes first bandwidth information, and the first bandwidth information is based on The bandwidth of the first channel occupied by the first group of station STAs is configured, the second preamble includes second bandwidth information, and the second bandwidth information is based on the frequency of the second channel occupied by the second group of station STAs For wide configuration, the first channel has no intersection with the second channel, and the sum of the bandwidth of the first channel and the bandwidth of the second channel is less than or equal to the bandwidth supported by the AP;

a communication unit, configured to send the first packet to the first group of STAs and the second group of STAs, the first packet includes first data and second data, and the first preamble is used for Instructing the first group of STAs to use the first bandwidth information to receive the first data, and the second preamble to instruct the second group of STAs to use the second bandwidth information to receive the second data , the first group of STAs includes at least one STA, and the second group of STAs includes at least one STA;

The communication unit is configured to receive a first response frame from the first group of STAs and a second response frame from the second group of STAs, the first response frame is used to notify the first group of STAs that the The first data and the second response frame are used to notify the second group of STAs that the second data has been received.

In the above device, when the bandwidth capability supported by the access point AP is greater than the bandwidth capability supported by the station STA, in the downlink direction, the AP can assign subcarriers for receiving data to the STA by modifying the preamble , that is, the first message includes the first preamble and the second preamble, the first group of STAs obtains the subcarrier allocated by the AP to the first group of STAs by identifying the first preamble, and obtains the first data according to the subcarrier, and the second The two groups of STAs obtain the subcarriers allocated by the AP to the second group of STAs by identifying the second preamble and obtain the second data according to the subcarriers. Through multi-channel processing, the resources of the first channel and the second channel can be fully utilized to avoid If the AP and STA do not support high-bandwidth capabilities, they can only use one channel according to the negotiation of lower bandwidth capabilities, which causes waste and reduces the overall air interface rate. Data is sent and received on the first channel and the second channel at the same time. , to avoid interference caused by asynchronous data transmission and reception, and to inform the AP in time by sending a response frame to the AP through the STA that the STA has received the data, so as to avoid resource waste caused by the continuous waiting of the AP.

In an optional solution, the first preamble includes first spectrum allocation information, and the first spectrum allocation information is used to indicate frequency domain resources for the first group of STAs to receive the first data, so The second preamble includes second frequency spectrum allocation information, where the second channel allocation information is used to indicate frequency domain resources for the second group of STAs to receive the second data.

In yet another optional solution, the processing unit is further configured to determine the service flow of the first channel and the service flow of the second channel;

The communication unit is further configured to send a first notification message to some STAs in the first group of STAs when the difference between the service flow of the first channel and the service flow of the second channel is greater than a first threshold , the first notification message is used to instruct some STAs in the first group of STAs to switch from the first channel to the second channel to become the second group of STAs; the communication unit is also used to When the difference between the service flow of the second channel and the service flow of the first channel is greater than the first threshold, send a second notification message to some STAs in the second group of STAs, and the second notification message It is used to instruct some STAs in the second group of STAs to switch from the second channel to the first channel to become the first group of STAs.

In the above device, the AP flexibly guides the STA to the first channel or the second channel by estimating the traffic flow of the channel. In this way, it is possible to avoid a very heavy load on one channel and a very heavy load on the other channel. In light extreme cases, it can comprehensively consider the traffic conditions on the channel and use resources reasonably.

In yet another optional solution, the communication unit is further configured to send a first management frame on the first channel, and the first management frame is used for the first group of STAs to determine the communication with the AP. connection status;

The communication unit is further configured to send a second management frame on the second channel, where the second management frame is used by the second group of STAs to determine a connection status with the AP.

In the above device, the AP sends the first management frame on the first channel and the second management frame on the second channel, so that the STA can listen to the management frame on the channel, let the STA know that there is an AP nearby, and can communicate with the AP. The AP keeps the connection, so that data communication can be carried out quickly.

In yet another optional solution, the communication unit is further configured to send a first trigger frame to the first group of STAs on the first channel, where the first trigger frame includes the first frequency spectrum Allocation information, the first frequency spectrum allocation information is used to instruct the first group of STAs to send frequency domain resources of the third data to the AP, the first trigger frame includes a first duration, and the first duration is the the time when the third data is transmitted on the first channel;

The communication unit is further configured to receive third data sent by the first group of STAs on the first channel;

The communication unit is further configured to send a third response frame to the first group of STAs on the first channel, and the third response frame is used to notify the first group of STAs that the AP has received the third data;

The communication unit is further configured to send a second trigger frame to the second group of STAs on the second channel, where the second trigger frame includes the second spectrum allocation information, and the second spectrum allocation information A frequency domain resource for instructing the second group of STAs to send fourth data to the AP, the second trigger frame includes a second duration, and the second duration is the fourth data on the second channel transmission time, wherein the first trigger frame and the second trigger frame are used to indicate the transmission time of the third data on the first channel and the transmission time of the fourth data on the second channel The transmission time on the same;

The communication unit is further configured to receive fourth data sent by the second group of STAs on the second channel;

The communication unit is further configured to send a fourth response frame to the second group of STAs on the second channel, and the fourth response frame is used to notify the second group of STAs that the AP has received the Fourth data.

In the above device, when the bandwidth capability supported by the access point AP is greater than the bandwidth capability supported by the station STA, in the uplink direction, the AP sends a trigger frame to the STA to inform the STA to send data to the AP The sub-carriers in the information time can make full use of the resources of the first channel and the second channel through multi-channel processing, which improves the overall air interface rate and avoids that the bandwidth capabilities of APs and STAs are inconsistent and can only be performed according to low bandwidth capabilities. During the negotiation, only one of the channel resources is used, resulting in a waste of resources, and the trigger frame indicates that the data transmission time on the first channel and the second channel are the same, avoiding interference, ensuring data quality, and sending STA information to the STA through the AP. The method of sending a response frame notifies STAAP that the data has been received in time to avoid waste of resources caused by STA's continuous waiting.

In yet another optional solution, the communication unit is further configured to send the first preamble and the first data to the first group of STAs on the first channel at the same time and at the same time sending the second preamble and the second data to the second group of STAs on the second channel, wherein the transmission of the first preamble and the first data on the first channel The time is the same as the transmission time of the second preamble and the second data on the second channel.

The fourth aspect of the embodiment of the present application discloses a multi-channel processing device, including:

A communication unit, configured to receive a first message sent by an access point AP, where the first message includes a first preamble and a second preamble;

A processing unit, configured to identify a first preamble in the first packet or a second preamble in the first packet, where the first preamble includes first bandwidth information, and the first frequency The bandwidth information is configured according to the bandwidth of the first channel occupied by the first group of station STAs, the second preamble includes second bandwidth information, and the second bandwidth information is configured according to the bandwidth of the first channel occupied by the second group of station STAs. Two-channel bandwidth configuration;

The communication unit is further configured to receive first data according to the first bandwidth information, or receive second data according to the second bandwidth information, and the first message includes the first data and the The second data, the first channel has no intersection with the second channel, and the sum of the bandwidth of the first channel and the bandwidth of the second channel is less than or equal to the bandwidth supported by the AP, the the first group of STAs includes at least one STA, and the second group of STAs includes at least one STA;

The communication unit is further configured to send a first response frame to the AP on a first channel, where the first response frame is used to notify the AP that the STA has received the first data; or in the second Sending a second response frame to the AP on a channel, where the second response frame is used to notify the AP that the STA has received the second data.

In the above device, when the bandwidth capability supported by the access point AP is greater than the bandwidth capability supported by the station STA, in the downlink direction, the AP can assign subcarriers for receiving data to the STA by modifying the preamble , that is, the first message includes the first preamble and the second preamble, the first group of STAs obtains the subcarrier allocated by the AP to the first group of STAs by identifying the first preamble, and obtains the first data according to the subcarrier, and the second The two groups of STAs obtain the subcarrier allocated by the AP to the second group of STAs by identifying the second preamble and obtain the second data according to the subcarrier, which can make full use of the resources of the first channel and the second channel, and avoid using only one channel to cause Waste, reduce the occurrence of the overall air interface rate, send and receive data on the first channel and the second channel at the same time, avoid the interference caused by asynchronous data sending and receiving, and send a response frame to the AP through the STA to inform the AP and STA in time The data has been received, avoiding the waste of resources caused by the continuous waiting of the AP, and the first channel and the second channel can be fully utilized through multi-channel processing.

In an optional solution, the first preamble includes first spectrum allocation information, where the first spectrum allocation information is used to indicate the frequency domain resource for the first group of STAs to receive the first data, and the first The second preamble includes second frequency spectrum allocation information, where the second channel allocation information is used to indicate frequency domain resources for the second group of STAs to receive the second data.

In yet another optional solution, the communication unit is further configured to receive the message sent by the AP when the difference between the service flow of the first channel and the service flow of the second channel is greater than a first threshold A first notification message, where the first notification message is used to instruct some STAs in the first group of STAs to switch from the first channel to the second channel; or

The communication unit is further configured to receive a second notification message sent by the AP when the difference between the service flow of the second channel and the service flow of the first channel is greater than the first threshold, and the second notification message is sent by the AP. The second notification message is used to instruct some STAs in the second group of STAs to switch from the second channel to the first channel.

In the above device, the AP flexibly guides the STA to the first channel or the second channel by estimating the traffic flow of the channel. In this way, it is possible to avoid a very heavy load on one channel and a very heavy load on the other channel. In light cases, the traffic on the channel can be considered comprehensively, and resources can be used reasonably.

In yet another optional solution, the communication unit is configured to receive a first management frame sent by the AP on the first channel, and the first management frame is used for the first group of STAs to determine the The connection status of the AP;

The communication unit is further configured to receive a second management frame sent by the AP on the second channel, and the second management frame is used for the second group of STAs to determine a connection status with the AP.

In the above device, the AP sends the first management frame on the first channel and the second management frame on the second channel, so that the STA can listen to the management frame on the channel, let the STA know that there is an AP nearby, and can communicate with the AP. The AP keeps connected and performs data communication quickly.

In yet another optional solution, the communication unit is further configured to receive a first trigger frame sent by the AP on the first channel, where the first trigger frame includes the first spectrum allocation information , the first spectrum allocation information is used to instruct the first group of STAs to send the frequency domain resources of the third data to the AP; the first trigger frame includes a first duration, and the first duration is the first duration 3. The time when data is transmitted on said first channel;

The communication unit is further configured to send the third data to the AP;

The communication unit is further configured to receive a third response frame from the AP, where the third response frame is used to notify the STA that the AP has received the third data; or

The communication unit is further configured to receive a second trigger frame sent by the AP on the second channel, the second trigger frame includes the second spectrum allocation information, and the second spectrum allocation information is used for Instructing the second group of STAs to send frequency domain resources of fourth data to the AP, the second trigger frame includes a second duration, and the second duration is for the fourth data to be transmitted on the second channel time, wherein the first trigger frame and the second trigger frame are used to indicate the transmission time of the third data on the first channel and the transmission time of the fourth data on the second channel The transfer time is the same;

The communication unit is further configured to send the fourth data to the AP;

The communication unit is further configured to receive a fourth response frame from the AP, where the fourth response frame is used to notify the STA that the AP has received the fourth data.

In the above device, when the bandwidth capability supported by the access point AP is greater than the bandwidth capability supported by the station STA, in the uplink direction, the AP sends a trigger frame to the STA to inform the STA to send data to the AP The sub-carriers in the information time can make full use of the resources of the first channel and the second channel through multi-channel processing, which improves the overall air interface rate and avoids that the bandwidth capabilities of APs and STAs are inconsistent and can only be performed according to low bandwidth capabilities. During negotiation, only one of the channel resources is used, resulting in waste of resources, and the trigger frame is used to indicate that the data transmission time on the first channel and the second channel are the same, avoiding interference, ensuring data quality, and sending STA information to the STA through the AP. The method of sending a response frame notifies STAAP that the data has been received in time to avoid waste of resources caused by STA's continuous waiting.

The fifth aspect of the embodiment of the present application discloses a multi-channel processing device, the multi-channel processing device includes a processor, a memory and a transceiver, the memory is used to store a computer program, the processor calls the computer program, Used to do the following:

Generate a first message, the first message includes a first preamble and a second preamble, the first preamble includes first bandwidth information, and the first bandwidth information is based on the first group of station STAs The bandwidth of the occupied first channel is configured, the second preamble includes second bandwidth information, and the second bandwidth information is configured according to the bandwidth of the second channel occupied by the second group of station STAs, so The first channel has no intersection with the second channel, and the sum of the bandwidth of the first channel and the bandwidth of the second channel is less than or equal to the bandwidth supported by the access point AP;

Send the first message to the first group of STAs and the second group of STAs through a transceiver, the first message includes first data and second data, and the first message is used to indicate the first group of STAs A group of STAs use the first bandwidth information to receive the first data, and a second group of STAs use the second bandwidth information to receive the second data, the first group of STAs includes at least one STA, the The second group of STAs includes at least one STA;

The first response frame from the first group of STAs and the second response frame from the second group of STAs are received by the transceiver, and the first response frame is used to notify the AP that the first group of STAs has The first data is received, and the second response frame is used to notify the AP that the second group of STAs has received the second data.

In the above device, when the bandwidth capability supported by the access point AP is greater than the bandwidth capability supported by the station STA, in the downlink direction, the AP can assign subcarriers for receiving data to the STA by modifying the preamble , that is, the first message includes the first preamble and the second preamble, the first group of STAs obtains the subcarrier allocated by the AP to the first group of STAs by identifying the first preamble, and obtains the first data according to the subcarrier, and the second The two groups of STAs obtain the subcarriers allocated by the AP to the second group of STAs by identifying the second preamble and obtain the second data according to the subcarriers. Through multi-channel processing, the resources of the first channel and the second channel can be fully utilized to avoid If the AP and STA do not support high-bandwidth capabilities, they can only use one channel according to the negotiation of lower bandwidth capabilities, which causes waste and reduces the overall air interface rate. Data is sent and received on the first channel and the second channel at the same time. , to avoid interference caused by asynchronous data transmission and reception, and to inform the AP in time by sending a response frame to the AP through the STA that the STA has received the data, so as to avoid resource waste caused by the continuous waiting of the AP.

In an optional solution, the first preamble includes first spectrum allocation information, and the first spectrum allocation information is used to indicate frequency domain resources for the first group of STAs to receive the first data, so The second preamble includes second frequency spectrum allocation information, where the second channel allocation information is used to indicate frequency domain resources for the second group of STAs to receive the second data.

In yet another optional solution, the processor is further configured to: determine the service flow of the first channel and the service flow of the second channel;

When the difference between the service flow of the first channel and the service flow of the second channel is greater than a first threshold, send a first notification message to some STAs in the first group of STAs through the transceiver, and the first notification message is sent to some STAs in the first group of STAs, and the second channel A notification message is used to instruct some STAs in the first group of STAs to switch from the first channel to the second channel to become the second group of STAs; When the difference in traffic flow of a channel is greater than the first threshold, send a second notification message to some STAs in the second group of STAs through the transceiver, where the second notification message is used to indicate that the STAs in the second group Part of the STAs switching from the second channel to the first channel become the first group of STAs.

In the above device, the AP flexibly guides the STA to the first channel or the second channel by estimating the traffic flow of the channel. In this way, it is possible to avoid a very heavy load on one channel and a very heavy load on the other channel. In light cases, the traffic on the channel can be considered comprehensively, and resources can be used reasonably.

In yet another optional solution, the processor is further configured to: send a first management frame on the first channel through a transceiver, and the first management frame is used for the first group of STAs to determine and The connection status of the AP;

Sending a second management frame on the second channel through the transceiver, where the second management frame is used by the second group of STAs to determine a connection status with the AP.

In the above device, the AP sends the first management frame on the first channel and the second management frame on the second channel, so that the STA can listen to the management frame on the channel, let the STA know that there is an AP nearby, and can communicate with the AP. The AP keeps the connection, so that data communication can be carried out quickly.

In yet another optional solution, the processor is further configured to: send a first trigger frame to the first group of STAs on the first channel through a transceiver, where the first trigger frame includes the First spectrum allocation information, where the first spectrum allocation information is used to indicate frequency domain resources for the first group of STAs to send third data to the AP, the first trigger frame includes a first duration, and the first The duration is the time during which the third data is transmitted on the first channel;

receiving third data sent by the first group of STAs on the first channel through the transceiver;

sending a third response frame to the first group of STAs on the first channel through the transceiver, where the third response frame is used to notify the first group of STAs that the AP has received the third data ;

Send a second trigger frame to the second group of STAs on the second channel through the transceiver, where the second trigger frame includes the second spectrum allocation information, and the second spectrum allocation information is used to indicate the The second group of STAs sends frequency domain resources of fourth data to the AP, the second trigger frame includes a second duration, and the second duration is the time when the fourth data is transmitted on the second channel, Wherein, the first trigger frame and the second trigger frame are used to indicate that the transmission time of the third data on the first channel is the same as the transmission time of the fourth data on the second channel ;

receiving fourth data sent by the second group of STAs on the second channel through the transceiver;

sending a fourth response frame to the second group of STAs on the second channel through the transceiver, where the fourth response frame is used to notify the second group of STAs that the AP has received the fourth data .

In the above device, when the bandwidth capability supported by the access point AP is greater than the bandwidth capability supported by the station STA, in the uplink direction, the AP sends a trigger frame to the STA to inform the STA to send data to the AP The sub-carriers in the information time can make full use of the resources of the first channel and the second channel through multi-channel processing, which improves the overall air interface rate and avoids that the bandwidth capabilities of APs and STAs are inconsistent and can only be performed according to low bandwidth capabilities. During the negotiation, only one of the channel resources is used, resulting in a waste of resources, and the trigger frame indicates that the data transmission time on the first channel and the second channel are the same, avoiding interference, ensuring data quality, and sending STA information to the STA through the AP. The method of sending a response frame notifies STAAP that the data has been received in time to avoid waste of resources caused by STA's continuous waiting.

In yet another optional solution, the processor is configured to: send the first preamble and the first data and Send the second preamble and the second data to the second group of STAs on the second channel, where the first preamble and the first data on the first channel The transmission time is the same as the transmission time of the second preamble and the second data on the second channel.

The sixth aspect of the embodiment of the present application discloses a multi-channel processing device, the multi-channel processing device includes a processor, a memory and a transceiver, the memory is used to store a computer program, the processor calls the computer program, Used to do the following:

Receive a first message sent by an access point AP, where the first message includes a first preamble and a second preamble;

identifying a first preamble in the first packet or a second preamble in the first packet, where the first preamble includes first bandwidth information, and the first bandwidth information is based on the first The bandwidth of the first channel occupied by a group of station STAs is configured, the second preamble includes second bandwidth information, and the second bandwidth information is based on the bandwidth of the second channel occupied by the second group of station STAs Configured;

Receive first data according to the first bandwidth information, or receive second data according to the second bandwidth information, the first message includes the first data and the second data, and the first The channel has no intersection with the second channel, and the sum of the bandwidth of the first channel and the bandwidth of the second channel is less than or equal to the bandwidth supported by the AP, and the station STA is the first group of station STAs or a second group of station STAs, the first group of STAs includes at least one STA, and the second group of STAs includes at least one STA;

Sending a first response frame to the AP on a first channel, where the first response frame is used to notify the AP that the STA has received the first data; or sending a second response frame to the AP on a second channel Two response frames, the second response frame is used to notify the AP that the STA has received the second data.

In the above device, when the bandwidth capability supported by the access point AP is greater than the bandwidth capability supported by the station STA, in the downlink direction, the AP can assign subcarriers for receiving data to the STA by modifying the preamble , that is, the first message includes the first preamble and the second preamble, the first group of STAs obtains the subcarrier allocated by the AP to the first group of STAs by identifying the first preamble, and obtains the first data according to the subcarrier, and the second The two groups of STAs obtain the subcarriers allocated by the AP to the second group of STAs by identifying the second preamble and obtain the second data according to the subcarriers. Through multi-channel processing, the resources of the first channel and the second channel can be fully utilized to avoid If the AP and STA do not support high-bandwidth capabilities, they can only use one channel according to the negotiation of lower bandwidth capabilities, which causes waste and reduces the overall air interface rate. Data is sent and received on the first channel and the second channel at the same time. , to avoid interference caused by asynchronous data transmission and reception, and to inform the AP in time by sending a response frame to the AP through the STA that the STA has received the data, so as to avoid resource waste caused by the continuous waiting of the AP.

In an optional solution, the first preamble includes first spectrum allocation information, where the first spectrum allocation information is used to indicate the frequency domain resource for the first group of STAs to receive the first data, and the first The second preamble includes second frequency spectrum allocation information, where the second channel allocation information is used to indicate frequency domain resources for the second group of STAs to receive the second data.

In yet another optional solution, the processor is further configured to: when the difference between the service flow of the first channel and the service flow of the second channel is greater than a first threshold value, by the transceiver receiving a first notification message sent by the AP, where the first notification message is used to instruct some of the STAs to switch from the first channel to the second channel; or

When the difference between the service flow of the second channel and the service flow of the first channel is greater than a first threshold, the transceiver receives a second notification message sent by the AP, and the second notification message uses Instructing some of the STAs to switch from the second channel to the first channel.

In the above device, the AP flexibly guides the STA to the first channel or the second channel by estimating the traffic flow of the channel. In this way, it is possible to avoid a very heavy load on one channel and a very heavy load on the other channel. In light cases, the traffic on the channel can be considered comprehensively, and resources can be used reasonably.

In yet another optional solution, the processor is further configured to: use the transceiver to receive a first management frame sent by the AP on the first channel, and the first management frame is used for the The first group of STAs determines the connection state with the AP;

receiving a second management frame sent by the AP on the second channel through the transceiver, where the second management frame is used by the second group of STAs to determine a connection status with the AP.

In the above device, the AP sends the first management frame on the first channel and the second management frame on the second channel, so that the STA can listen to the management frame on the channel, let the STA know that there is an AP nearby, and can communicate with the AP. The AP keeps connected and performs data communication quickly.

In yet another optional solution, the processor is further configured to: receive a first trigger frame sent by the AP on the first channel through the transceiver, where the first trigger frame includes the First spectrum allocation information, where the first spectrum allocation information is used to instruct the STA to send the frequency domain resource of the third data to the AP, the first trigger frame includes a first duration, and the first duration is the the time when the third data is transmitted on the first channel;

The STA sends the third data to the AP;

The STA receives a third response frame from the AP, where the third response frame is used to notify the STA that the AP has received the third data; or

The second trigger frame sent by the AP is received by the transceiver on the second channel, the second trigger frame includes the second spectrum allocation information, and the second spectrum allocation information is used to indicate the The STA sends the frequency domain resource of the fourth data to the AP, the second trigger frame includes a second duration, and the second duration is the time when the fourth data is transmitted on the second channel, wherein the The first trigger frame and the second trigger frame are used to indicate that the transmission time of the third data on the first channel is the same as the transmission time of the fourth data on the second channel;

The STA sends the fourth data to the AP;

The STA receives a fourth response frame from the AP, where the fourth response frame is used to notify the STA that the AP has received the fourth data.

In the above device, when the bandwidth capability supported by the access point AP is greater than the bandwidth capability supported by the station STA, in the uplink direction, the AP sends a trigger frame to the STA to inform the STA to send data to the AP The sub-carriers in the information time can make full use of the resources of the first channel and the second channel through multi-channel processing, so as to avoid that the AP and STA do not support high-bandwidth capabilities, and only use one channel according to the negotiation of lower bandwidth capabilities. As a result, waste is caused and the overall air interface rate is reduced. Data is sent and received on the first channel and the second channel at the same time to avoid interference caused by asynchronous data transmission and reception, and the trigger frame indicates that the data is sent on the first channel and the second channel. The transmission time on the network is the same to avoid interference, ensure data quality, and send a response frame to the STA through the AP to inform the STA in time that the AP has received the data, so as to avoid resource waste caused by the STA's continuous waiting.

The seventh aspect of the embodiment of the present application discloses a chip. The chip includes at least one processor and an interface circuit. Optionally, the chip further includes a memory. The memory, the interface circuit, and the at least one processing The processors are interconnected by wires, and the at least one memory stores a computer program; when the computer program is executed by the processor, it is described in an optional solution for realizing any one of the first aspect and the second aspect or any one aspect Methods.

The eighth aspect of the embodiment of the present application discloses a computer-readable storage medium, the computer storage medium stores a computer program, and when the computer program is executed by a processor, any one of the first aspect and the second aspect or The method described in the alternative scheme of any aspect.

Description of drawings

The accompanying drawings used in the embodiments of the present application are introduced below.

FIG. 1 is a schematic diagram of a system architecture for multi-channel processing provided by an embodiment of the present application;

FIG. 2 is a schematic diagram of a 20MHz bandwidth resource block distribution provided by an embodiment of the present application;

FIG. 3 is a schematic diagram of a 40MHz bandwidth resource block distribution provided by an embodiment of the present application;

FIG. 4 is a schematic diagram of a resource block distribution with a bandwidth of 80 MHz provided by an embodiment of the present application;

FIG. 5 is a schematic diagram of bandwidth occupancy when an AP communicates with a STA provided in an embodiment of the present application;

FIG. 6 is a schematic diagram of a message format provided by an embodiment of the present application;

FIG. 7 is a schematic diagram of bandwidth occupancy when an AP communicates with a STA provided in an embodiment of the present application;

FIG. 8 is a schematic flowchart of a multi-channel processing method provided in an embodiment of the present application;

FIG. 9 is a schematic diagram of the format of a preamble in a first message provided by an embodiment of the present application;

FIG. 10 is a schematic diagram of the format of another preamble in the first message provided by the embodiment of the present application;

FIG. 11 is a schematic diagram of an AP sending a first message to a first group of STAs and a second group of STAs according to an embodiment of the present application;

FIG. 12 is a schematic diagram of a traditional STA online method provided by the embodiment of the present application;

FIG. 13 is a schematic diagram of a STA going online on the first channel provided by the embodiment of the present application;

FIG. 14 is a schematic diagram of a STA going online on the first channel and the second channel provided by the embodiment of the present application;

FIG. 15 is a schematic diagram of channel switching provided by an embodiment of the present application;

FIG. 16 is a schematic diagram of a trigger frame format provided by an embodiment of the present application;

FIG. 17 is a schematic diagram of interference caused by asynchronous data transmission and reception provided by the embodiment of the present application;

FIG. 18 is a schematic diagram of data transmission and reception synchronization provided by an embodiment of the present application;

Fig. 19 is a schematic diagram of a cancellation signal generated by asynchronous data transmission and reception provided by the embodiment of the present application;

FIG. 20 is a schematic structural diagram of a multi-channel processing device provided by an embodiment of the present application;

Fig. 21 is a schematic structural diagram of a multi-channel processing device provided by an embodiment of the present application;

FIG. 22 is a schematic structural diagram of a multi-channel processing device provided by an embodiment of the present application;

FIG. 23 is a schematic structural diagram of a multi-channel processing device provided by an embodiment of the present application.

Detailed ways

Embodiments of the present application are described below with reference to the drawings in the embodiments of the present application.

Please refer to FIG. 1 . FIG. 1 is a schematic diagram of a multi-channel processing system architecture provided by an embodiment of the present application. The system includes at least one access point (access point, AP) 101 and at least one station (station, STA) 102 . The AP is a network element that provides services for the station. For example, the access point AP is an access point that can support 802.11 series protocols, and the access point AP is a device that supports 160 megahertz (Mega Hertz, MHz) bandwidth capability. For example, the station STA may be a station supporting the 802.11.ax protocol, and the station STA is a device supporting 80M bandwidth capability.

As shown in FIG. 1 , the method provided by the embodiment of the present application may be applied to the multi-channel processing system shown in FIG. 1 . In the communication system, one access point AP can perform data transmission with multiple STAs. For example, the AP in FIG. 1 can transmit uplink data or downlink data with two STAs.

With the continuous development of Internet technology, people's requirements for the Internet are getting higher and higher. In order to meet this demand, wireless Internet access WiFi technology is also gradually evolving to support higher and higher speeds. The WiFi rate is mainly affected by the working bandwidth, modulation method, and the number of multiple in multiple out (MIMO). The number of MIMO, working bandwidth, and modulation method depend on the capabilities of both the AP and the STA. If one party does not support , you can only negotiate with a lower capability. In the WiFi6 era, many APs already support 160M bandwidth, but there are still many STAs that do not support 160M bandwidth.

After WiFi6, the AP can support Orthogonal Frequency Division Multiple Access (OFDMA) technology, and can send and receive data with multiple STAs at the same time, and each STA uses a different subcarrier. OFDMA technology divides the transmission bandwidth into a series of orthogonal non-overlapping subcarrier sets, and allocates different subcarrier sets to different users to realize multiple access. This technology can dynamically allocate available bandwidth resources to users in need, and it is easy to realize optimal utilization of system resources.

Since WiFi6, the concept of resource block (resource unit, RU) has been introduced. In WiFi6, the size of resource block RU has various sizes, including 26 subcarrier-sized resource blocks, 52 subcarrier-sized resource blocks, and 106 subcarriers. RBs of 242 subcarriers, RBs of 484 subcarriers, and RBs of 996 subcarriers.

The size of the 20MHz bandwidth resource block is limited to 26, 52, 106, 242. As shown in FIG. 2 , FIG. 2 shows a schematic diagram of distribution of resource blocks with a bandwidth of 20 MHz. The 26-sized resource block in the middle spans the DC subcarrier, and the DC subcarrier is the small gap in the middle of the figure. The first layer is the position distribution of nine 26-sized resource blocks, and the second layer is four 52-sized and one 26-sized resource block. location distribution, the third layer is the location distribution of two 106 and one 26-sized resource blocks, and the fourth layer is the location distribution of one 242-sized resource block. The 20MHZ spectrum block diagram can combine any resource block in these 4 layers to form a spectrum with a size of 242 subcarriers. When the AP schedules, it can only allocate one resource block to each user, but can allocate multiple users to the same resource block.

The sizes of 40MHz bandwidth resource blocks are limited to 26, 52, 106, 242, 484. As shown in FIG. 3 , FIG. 3 shows a schematic diagram of distribution of resource blocks with a bandwidth of 40 MHz. The middle slit is the DC subcarrier. The first layer is the location distribution of 18 26-sized resource blocks, the second layer is the location distribution of 8 52 and 2 26-sized resource blocks, and the third layer is the location distribution of 4 106 and 2 26-sized resource blocks, The fourth layer is the location distribution of two 242-sized resource blocks, and the 242-sized resource block is 20M bandwidth. The fifth layer is the location distribution of one 484-sized resource block, and the 484-sized resource block is 40M bandwidth. The 40MHz spectrum block diagram can combine any resource block in the 5 layers to form a spectrum with a size of 484 subcarriers, and each user can only allocate one of the resource blocks.

Resource blocks of 80 MHz bandwidth are limited to 26, 52, 106, 242, 484 and 996. As shown in FIG. 4, FIG. 4 shows a schematic diagram of distribution of resource blocks with a bandwidth of 80 MHz. The 80MHz bandwidth block diagram is divided into 6 layers. The resource blocks of size 26 in the middle span DC subcarriers, and the small gaps in the middle are DC subcarriers. The first layer is the location distribution of 37 26-sized resource blocks, the second layer is the location distribution of 16 52 and 5 26-sized resource blocks, and the third layer is the location distribution of 8 106 and 5 26-sized resource blocks, The fourth layer is the location distribution of four 242 and one 26-sized resource blocks. The 242-sized resource block is 20M bandwidth. The fifth layer is the location distribution of two 484 and one 26-sized resource blocks. The 484-sized resource block The block is 40M bandwidth, the sixth layer is the location distribution of a 996-size resource block, and the 996-size resource block is 80M bandwidth. The 80MHz spectrum block diagram can combine any resource block in the 6 layers to form a spectrum with a size of 996 subcarriers, and each user can only allocate one of the resource blocks.

As shown in FIG. 5 , FIG. 5 shows a schematic diagram of bandwidth occupancy when the AP communicates with the STA. If the AP supports 160MHz bandwidth, STA1 supports 160M bandwidth, and STA2 only supports 80M bandwidth, then in the downlink direction, when an AP supporting 160M bandwidth capability sends a message to an STA supporting 80M bandwidth capability, the message format As shown in Figure 6, including the preamble and data, the preamble includes the high-efficiency signaling field A (SIGA) for the bandwidth capability of 160M supported by the AP, and the traditional signaling field B (SIGB). According to the WiFi6 standard, odd sub-channels The SIGB of the even-numbered sub-channels is the same, that is, when the AP communicates with STA2 that only supports 80M bandwidth, it can only receive and send data according to the 80M bandwidth, thus causing a waste of the remaining 80M bandwidth.

In order to avoid the above situation, as shown in FIG. 7 , FIG. 7 shows a schematic diagram of bandwidth occupancy when the AP communicates with the STA. If the AP supports 160M bandwidth, STA1 supports 160M bandwidth, and STA2 only supports 80M bandwidth, according to the WiFi6 standard, when allocating bandwidth resources, AP allocates 80M bandwidth to STA1 supporting 160M bandwidth for receiving and sending data , to allocate 80M bandwidth to STA2 supporting 80M bandwidth for receiving and sending data, but when the business traffic of STA1 supporting 160M bandwidth is small, and the business traffic of STA2 supporting 80M bandwidth is large, there is still waste . In order to solve the above technical problems, the embodiments of the present application provide the following solutions.

Please refer to FIG. 8. FIG. 8 is a schematic flow chart of a multi-channel processing method provided by an embodiment of the present application. The method includes but is not limited to the following steps:

Step S801: the access point AP generates a first message.

Specifically, the first message includes a first preamble and a second preamble, the first preamble includes first bandwidth information and first spectrum allocation information, and the first bandwidth information is based on the first group of station STAs occupied by the first group of stations. When the bandwidth of a channel is configured, the first spectrum allocation information is used to indicate the frequency domain resource for the first group of STAs to receive the first data; the second preamble includes the second bandwidth information and the second spectrum allocation information, and the second bandwidth The information is configured according to the bandwidth of the second channel occupied by the second group of station STAs, and the second channel allocation information is used to indicate the frequency domain resource for the second group of STAs to receive the second data. There is no intersection between the first channel and the second channel, and the sum of the bandwidth of the first channel and the bandwidth of the second channel is less than or equal to the bandwidth supported by the AP.

For example, if the access point AP supports devices with a bandwidth capability of 160M, the first group of station STAs are devices that support 80M bandwidth capabilities, and the second group of station STAs are devices that support 80M bandwidth capabilities, then in the first message The format of the preamble is shown in Figure 9. Wherein, the first message includes a first preamble and a second preamble, the first preamble includes first bandwidth information and first spectrum allocation information, and the first bandwidth information is an efficient signaling field A (SIGA), SIGA 80M, the first spectrum allocation information is the allocation information of sub-channels 1, 2, 3, and 4; the second preamble includes the second bandwidth information and the second spectrum allocation information, and the second bandwidth information is the high-efficiency signaling field A (SIGA), SIGA is 80M, and the second frequency spectrum allocation information is the allocation information of 5, 6, 7, and 8 sub-channels.

For example, if the access point AP is a device that supports 320M bandwidth capability, the first group of station STAs are devices that support 160M bandwidth capability, the second group of station STAs are devices that support 80M bandwidth capability, and the third group of station STAs are devices that support 80M bandwidth capability. To support devices with 80M bandwidth capability, the format of the preamble in the first message is as shown in FIG. 10 . The first message includes a first preamble, a second preamble, and a third preamble. The first preamble includes first bandwidth information and first spectrum allocation information. The first bandwidth information is an efficient signaling field A (SIGA ), SIGA is 160M, and the first spectrum allocation information is the allocation information of 1, 2, 3, 4, 5, 6, 7, and 8 subchannels; the second preamble includes the second bandwidth information and the second spectrum allocation information, The second bandwidth information is high-efficiency signaling field A (SIGA), SIGA is 80M, and the second frequency spectrum allocation information is allocation information of 9, 10, 11, and 12 sub-channels. The third preamble includes third bandwidth information and third spectrum allocation information, the third bandwidth information is high-efficiency signaling field A (SIGA), SIGA is 80M, and the third spectrum allocation information is 13, 14, 15, 16 Channel allocation information.

Step S802: the AP sends a first packet to the first group of STAs and the second group of STAs.

Specifically, the first message includes first data and second data, the first preamble is used to instruct the first group of STAs to use the first bandwidth information to receive the first data, and the second preamble is used to instruct the second group of STAs Using the second bandwidth information to receive the second data, the first group of STAs includes at least one STA, and the second group of STAs includes at least one STA.

Specifically, the downlink multi-user transmission is performed in the manner of centralized scheduling by the AP, and the AP transmits data to the first group of STAs and The second group of STAs sends the first packet.

Specifically, after receiving the first message, the first group of STAs identifies the first preamble in the first message, and obtains the resource blocks allocated by the AP to the first group of STAs according to the first spectrum allocation information in the first preamble. , the first group of STAs receives the first data sent by the AP to the first group of STAs in this resource block; the second group of STAs recognizes the second preamble in the first message after receiving the first message, and according to the second preamble The second spectrum allocation information in the code obtains the resource block allocated by the AP to the second group of STAs, and the second group of STAs receives the second data sent by the AP to the second group of STAs in the resource block.

For example, as shown in FIG. 11 , in FIG. 11 , the AP sends the first packet to the first group of STAs and the second group of STAs. If the AP is a device supporting 160M bandwidth capability, the first group of STAs includes STA1 and STA2, both of which are devices supporting 80M bandwidth capability, and the second group of STAs includes STA3 and STA4, both of which are STA3 and STA4 For devices supporting 80M bandwidth capability, STA1 and STA2 are on the first channel, and STA3 and STA4 are on the second channel. When STA1 receives the first message on the first channel, STA1 recognizes the first preamble in the first message According to the first spectrum allocation information in the first preamble, the subcarrier allocated by the AP to STA1 is obtained, and STA1 obtains the data sent by the AP to STA1 on the corresponding subcarrier. When STA2 receives the first message on the first channel , STA2 identifies the first preamble in the first message, obtains the subcarrier allocated by the AP to STA2 according to the first spectrum allocation information in the first preamble, and STA2 obtains the data sent by the AP to STA2 on the corresponding subcarrier; When STA3 receives the first message on the second channel, STA3 identifies the second preamble in the first message, and obtains the subcarrier allocated by the AP to STA3 according to the second spectrum allocation information in the second preamble. Obtain the data sent by the AP to STA3 on the corresponding subcarrier. When STA4 receives the first message on the first channel, STA4 identifies the second preamble in the first message, and according to the second spectrum in the second preamble The allocation information obtains the subcarrier allocated by the AP to STA4, and STA4 obtains the data sent by the AP to STA2 on the corresponding subcarrier. Among them, STA1 and STA2 share resource blocks with a bandwidth of 80M. Specifically, the number of resource blocks of 80M that STA1 and STA2 occupy is determined by AP scheduling. STA3 and STA4 share resource blocks with a bandwidth of 80M. Specifically, STA3 and STA4 How many of the resource blocks occupying 80M are determined by AP scheduling.

In the embodiment of the present application, before the AP sends the first message to the first group of STAs and the second group of STAs, the method of establishing a communication connection between the AP and the STAs is as follows: As shown in FIG. 12 , traditional STAs go online. If the AP is a device supporting 160M bandwidth, and STA1, STA2, and STA3 are all devices supporting 80M bandwidth, the 160M channel is divided into master 80M and slave 80M. In the traditional way, the AP sends a beacon frame on the main 20M of the main 80M, STA1 and STA2 listen to the beacon frame, send an authentication request on the main 20M, and the AP replies to the STA1 and STA2 authentication responses, then the AP establishes a connection with STA1 and STA2; Although the AP is also sending a beacon frame from 80M to 20M, and STA3 also listens to the beacon frame, when STA3 sends an authentication request, because the AP is not from 80M to 20M, the AP cannot receive the authentication request. Therefore, STA3 cannot go online on the slave 80M, and can only go online on the master 80M first. Suppose, as shown in FIG. 13 , the STA goes online on the first channel. There are 4 STAs that support 80M bandwidth, that is, STA1, STA2, STA3, and STA4 go online on the main 80M, that is, they are all on the first channel, then the AP sends a notification message to STA3 and STA4 to notify STA3 and STA4 to switch to the secondary 80M, that is, The second channel, at this time, the AP is waiting on the main 20M of the slave 80M, and sends a beacon frame on the master 20M of the slave 80M. STA3 and STA4 listen to the beacon frame, then send an authentication request to the AP, and the AP receives the authentication request. Therefore, STA3 and STA4 establish a connection with the AP on the slave 80M. As shown in FIG. 14 , the schematic diagram of STA going online on the first channel and the second channel, STA3 and STA4 go online on the slave 80M. At this time, STA1 and STA2 are on the master 80M, that is, the first channel, and STA3 and STA4 are on the slave 80M, that is, the second channel. AP can communicate with STA1, STA2, STA3, STA4.

In this embodiment of the application, before the AP sends the first message to the first group of STAs and the second group of STAs, the AP sends the first management frame on the first channel, and the first management frame is used for the first group of STAs to determine the relationship with the AP. Connection state: the AP sends a second management frame on the second channel, and the second management frame is used for the second group of STAs to determine the connection state with the AP.

Specifically, after the AP establishes communication connections with the first group of STAs and the second group of STAs, that is, after the first group of STAs and the second group of STAs go online, in order to keep the first group of STAs and the second group of STAs connected to the AP, the AP The first management frame is sent on the first channel, and the second management frame is sent on the second channel. The first management frame and the second management frame may be beacon frames, and the AP will periodically broadcast and send the beacon frames.

For example, if the default period for the AP to send beacon frames is 100ms, the AP will broadcast and send a beacon frame on the first channel and the second channel every 100 milliseconds, and the first group of STAs will continue to send beacon frames on the first channel it supports. The beacon frame is monitored to know the APs existing around, and the second group of STAs continuously monitors the beacon frame on the second channel supported by them to know the APs existing around.

Step S803: The AP receives the first response frame from the first group of STAs and the second response frame from the second group of STAs.

Specifically, the first response frame is used to notify the AP that the first group of STAs has received the first data, and the second response frame is used to notify the AP that the second group of STAs has received the second data.

Optionally, the embodiment of the present application further includes the following steps:

Step S804: the AP determines the service flow of the first channel and the service flow of the second channel.

Specifically, the service traffic of the first channel is the communication traffic of the AP and the first group of STAs, and the service traffic of the second channel is the communication traffic of the AP and the second group of STAs.

For example, if the first group of STAs is on the first channel, and the second group of STAs is on the second channel, within ten minutes the first group of STAs will transmit video streams with the AP. A group of STAs and APs perform instant message transmission, and the traffic flow value of the second channel is 20 MB. If the first threshold value is 50 MB, the AP determines that the difference between the traffic traffic of the first channel and the traffic flow of the second channel is greater than 70 MB. The first threshold is 50 megabytes.

Specifically, in addition to notifying the STAs to switch channels according to the traffic volume of the first channel and the traffic volume of the second channel, the AP can also notify the STAs to switch channels according to the importance of the STAs. The bandwidth capability of the STA is notified to switch channels.

Specifically, before the STA establishes a communication connection with the AP, that is, before the STA goes online, the AP estimates the traffic situation of the STA, and notifies the STA to switch channels according to the traffic situation of the STA.

Step S805: The AP determines whether the difference between the service flow of the first channel and the service flow of the second channel is greater than a first threshold.

Specifically, if the difference between the service flow of the first channel and the service flow of the second channel is greater than the first threshold, step S806 is executed, and if the difference between the service flow of the first channel and the service flow of the second channel is greater than the first threshold threshold, the step goes to S807.

For example, if the AP determines that the traffic flow value of the first channel is 100 megabits, and the traffic traffic value of the second channel is 20 megabytes, if the first threshold value is 50 megabits, then the AP determines that the traffic traffic value of the first channel is different from that of the second channel. If the flow difference of 70 megabytes is greater than the first threshold of 50 megabytes, step S806 is executed.

Step S806: the AP sends a first notification message to some STAs in the first group of STAs.

Specifically, the first notification message is used to instruct some STAs in the first group of STAs to switch from the first channel to the second channel.

For example, as shown in FIG. 15, FIG. 15 shows a schematic diagram of channel switching. The first group of STAs includes STA1, STA3, and STA4, and the STA1, STA3, and STA4 are all on the first channel. Since the service flow of the first channel is greater than the service flow of the second channel, the AP sends the first The notification message notifies STA1 or STA2 or STA4 to switch from the first channel to the second channel.

Step S807: the AP sends a second notification message to some STAs in the second group of STAs.

Specifically, the second notification message is used to instruct some STAs in the second group of STAs to switch from the second channel to the first channel.

The above embodiments have described how the AP fully utilizes the bandwidth to send data to the STA in the downlink direction, and then describes how the AP fully utilizes the bandwidth to receive the data sent by the STA in the uplink direction.

The AP sends a first trigger frame to the first group of STAs on the first channel, the first trigger frame includes first spectrum allocation information, and the first spectrum allocation information is used to instruct the first group of STAs to send third data frequency domain resources to the AP , the first trigger frame includes a first duration, and the first duration is the time when the third data is transmitted on the first channel;

The AP receives third data sent by the first group of STAs on the first channel;

The AP sends a third response frame to the first group of STAs on the first channel, and the third response frame is used to notify the STAAP that the third data has been received;

The AP sends a second trigger frame to the second group of STAs on the second channel, the second trigger frame includes second spectrum allocation information, and the second spectrum allocation information is used to instruct the second group of STAs to send fourth data frequency domain resources to the AP , the second trigger frame includes a second duration, the second duration is the time when the fourth data is transmitted on the second channel, wherein the first trigger frame and the second trigger frame are used to indicate the transmission of the third data on the first channel The time is the same as the transmission time of the fourth data on the second channel;

The AP receives fourth data sent by the second group of STAs on the second channel;

The AP sends a fourth response frame to the second group of STAs on the second channel, where the fourth response frame is used to notify the STAs that the AP has received the fourth data.

Specifically, for uplink multi-user transmission, after adopting the AP centralized resource scheduling mode, the AP needs to send a trigger frame to the STA to transfer resource indication information for uplink transmission, so that multi-user simultaneous transmission can be performed. The format of the trigger frame is shown in Figure 16. The trigger frame mainly includes two parts of information: the public information field is used to indicate the type of the trigger frame and the trigger information common to some STAs, and the user information field is used to indicate the resource indication information for each STA. .

Specifically, after receiving the first trigger frame on the first channel, the first group of STAs identifies the first spectrum allocation information on the first trigger frame, that is, obtains the resource blocks allocated by the AP to the first group of STAs. The resource block sends the third data to the AP. Correspondingly, the AP receives the third data sent by the first group of STAs on the first channel, and the AP sends a third response frame to the first group of STAs on the first channel to notify the first group of STAs The AP of the first group of STAs has received the third data; the second group of STAs recognizes the second spectrum allocation information on the second trigger frame after receiving the second trigger frame on the second channel, that is, obtains the allocation information of the AP to the second group of STAs. The resource block of the second group of STAs sends the fourth data to the AP on this resource block. Correspondingly, the AP receives the third data sent by the second group of STAs on the second channel, and the AP sends the third data to the second group of STAs on the second channel. The fourth response frame notifies the second group of STAs that the AP has received the fourth data, wherein the start time of the first group of STAs sending the third data to the AP and the second group of STAs sending the fourth data to the AP are the same, and the third The transmission times of the data on the first channel and the fourth data on the second channel are the same.

The above embodiments have described the situation that the message transmission and reception on the first channel and the second channel are synchronized, and the following specifically describes the situation that the message transmission and reception on the first channel and the second channel are not synchronized.

As shown in FIG. 17 , FIG. 17 shows a schematic diagram of a situation where data transmission and reception are not synchronized. When the AP sends data on the first channel and receives data on the second channel, the first channel will interfere with the second channel, causing the AP to be unable to receive data on the second channel. The data transmission and reception on the two channels are synchronized, as shown in Figure 18, which shows that the first channel and the second channel transmit and receive data simultaneously. In addition to the above solutions, the present application also proposes the following solutions.

When the AP sends the second message to the first group of STAs on the first channel at the first moment, the AP receives the fifth data sent from the second group of STAs on the second channel, and the AP sends the second message on the first channel to the first group of STAs at the first moment. When the second message is sent to the first group of STAs, the first canceling signal is generated; the first canceling signal is used to offset the AP receiving the second message from the second channel on the second channel when the AP sends the second message to the first group of STAs on the first channel. The interference signal generated when the fifth data of the STA is collected, as shown in Figure 19; or

When the AP sends the second message to the second group of STAs on the second channel at the second moment, the AP receives the sixth data sent from the first group of STAs on the first channel, and the AP sends the second message to the second group of STAs on the second channel at the second moment. When the second group of STAs sends the second message, the second canceling signal is generated; the second canceling signal is used to offset the AP receiving the second message from the first channel on the first channel when the AP sends the second message to the second group of STAs on the second channel. The interference signal generated when the sixth data of the group STA.

In the method described in FIG. 8, when the bandwidth capability supported by the access point AP is greater than the bandwidth capability supported by the station STA, in the downlink direction, the AP can assign the receiving station to the STA by modifying the preamble. The subcarrier of the data, that is, the first packet includes the first preamble and the second preamble. The first group of STAs obtains the subcarrier allocated by the AP to the first group of STAs by identifying the first preamble, and obtains the first subcarrier according to the subcarrier. Data, and the second group of STAs obtains the subcarrier allocated by the AP to the second group of STAs by identifying the second preamble and obtains the second data according to the subcarrier, and can make full use of the first channel and the second channel through multi-channel processing To avoid the situation that AP and STA do not support high-bandwidth capability, they can only use one channel according to the negotiation of lower bandwidth capability, which causes waste and reduces the overall air interface rate. Send and receive data at the same time to avoid interference caused by asynchronous data transmission and reception, and send a response frame to the AP through the STA to inform the AP in time that the STA has received the data, avoiding the waste of resources caused by the continuous waiting of the AP.

The method of the embodiment of the present application has been described in detail above, and the device of the embodiment of the present application is provided below.

Please refer to FIG. 20 . FIG. 20 is a schematic structural diagram of a multi-channel processing device provided by an embodiment of the present application. The multi-channel processing device 2000 may include a processing unit 2001 and a communication unit 2002 . The detailed description of each unit is as follows.

The processing unit 2001 is configured to generate a first message, the first message includes a first preamble and a second preamble, the first preamble includes first bandwidth information, and the first bandwidth information is Configured according to the bandwidth of the first channel occupied by the first group of station STAs, the second preamble includes second bandwidth information, and the second bandwidth information is based on the bandwidth of the second channel occupied by the second group of station STAs For bandwidth configuration, the first channel has no intersection with the second channel, and the sum of the bandwidth of the first channel and the bandwidth of the second channel is less than or equal to the bandwidth supported by the AP;

A communication unit 2002, configured to send the first packet to the first group of STAs and the second group of STAs, the first packet includes first data and second data, and the first preamble uses Instructing the first group of STAs to use the first bandwidth information to receive the first data, and the second preamble to instruct a second group of STAs to use the second bandwidth information to receive the second data, The first group of STAs includes at least one STA, and the second group of STAs includes at least one STA;

The communication unit 2002 is further configured to receive a first response frame from the first group of STAs and a second response frame from the second group of STAs, where the first response frame is used to notify the AP that the first group of STAs The STA has received the first data, and the second response frame is used to notify the AP that the second group of STAs has received the second data.

In an optional solution, the first preamble includes first spectrum allocation information, and the first spectrum allocation information is used to indicate frequency domain resources for the first group of STAs to receive the first data, so The second preamble includes second frequency spectrum allocation information, where the second channel allocation information is used to indicate frequency domain resources for the second group of STAs to receive the second data.

In yet another optional solution, the processing unit 2001 is further configured to determine the service flow of the first channel and the service flow of the second channel; the communication unit 2002 is further configured to determine the service flow of the second channel When the difference between the service flow of a channel and the service flow of the second channel is greater than a first threshold, a first notification message is sent to some STAs in the first group of STAs, and the first notification message is used to indicate that the Part of the STAs in the first group of STAs switch from the first channel to the second channel to become the second group of STAs; the communication unit is also used to When the difference in traffic flow is greater than the first threshold, send a second notification message to some STAs in the second group of STAs, where the second notification message is used to indicate that some STAs in the second group of STAs Switching from the second channel to the first channel becomes a first group of STAs.

In yet another optional solution, the communication unit 2002 is further configured to send a first management frame on the first channel, and the first management frame is used for the first group of STAs to determine the The connection state of the AP; the communication unit 2002 is further configured to send a second management frame on the second channel, and the second management frame is used for the second group of STAs to determine the connection state with the AP.

In yet another optional solution, the communication unit 2002 is further configured to send a first trigger frame to the first group of STAs on the first channel, where the first trigger frame includes the first Spectrum allocation information, where the first spectrum allocation information is used to indicate frequency domain resources for the first group of STAs to send third data to the AP, the first trigger frame includes a first duration, and the first duration is The time when the third data is transmitted on the first channel; the communication unit 2002 is further configured to receive the third data sent by the first group of STAs on the first channel; the communication unit 2002 , further configured to send a third response frame to the first group of STAs on the first channel, where the third response frame is used to notify the first group of STAs that the AP has received the third data;

The communication unit 2002 is further configured to send a second trigger frame to the second group of STAs on the second channel, where the second trigger frame includes the second spectrum allocation information, and the second spectrum allocation The information is used to indicate the frequency domain resources of the second group of STAs to send the fourth data to the AP, and the second trigger frame includes a second duration, and the second duration is the fourth data in the second The transmission time on the channel, wherein, the first trigger frame and the second trigger frame are used to indicate the transmission time of the third data on the first channel and the transmission time of the fourth data on the second The transmission times on the channels are the same; the communication unit 2002 is further configured to receive fourth data sent by the second group of STAs on the second channel; the communication unit 2002 is further configured to Sending a fourth response frame to the second group of STAs on a channel, where the fourth response frame is used to notify the second group of STAs that the AP has received the fourth data.

In yet another optional solution, the communication unit 2002 is further configured to send the first preamble and the first data and Send the second preamble and the second data to the second group of STAs on the second channel, where the first preamble and the first data on the first channel The transmission time is the same as the transmission time of the second preamble and the second data on the second channel.

It should be noted that the implementation and beneficial effects of each unit may also refer to the corresponding description of the method embodiment shown in FIG. 8 .

Please refer to FIG. 21 . FIG. 21 is a schematic structural diagram of a multi-channel processing device provided by an embodiment of the present application. The multi-channel processing device 2100 may include a communication unit 2101 and a processing unit 2102 . The detailed description of each unit is as follows.

A communication unit 2101, configured to receive a first message sent by an access point AP, where the first message includes a first preamble and a second preamble;

A processing unit 2102, configured to identify a first preamble in the first packet or a second preamble in the first packet, where the first preamble includes first bandwidth information, and the first The bandwidth information is configured according to the bandwidth of the first channel occupied by the first group of station STAs, the second preamble includes second bandwidth information, and the second bandwidth information is configured according to the bandwidth of the first channel occupied by the second group of station STAs The bandwidth configuration of the second channel;

The communication unit 2101 is further configured to receive first data according to the first bandwidth information, or receive second data according to the second bandwidth information, and the first message includes the first data and the The second data, the first channel and the second channel have no intersection, and the sum of the bandwidth of the first channel and the bandwidth of the second channel is less than or equal to the bandwidth supported by the AP, so The first group of STAs includes at least one STA, and the second group of STAs includes at least one STA;

The communication unit 2101 is further configured to send a first response frame to the AP on a first channel, where the first response frame is used to notify the AP that the STA has received the first data; or the The communication unit 2101 is further configured to send a second response frame to the AP on a second channel, where the second response frame is used to notify the AP that the STA has received the second data.

In an optional solution, the first preamble includes first spectrum allocation information, where the first spectrum allocation information is used to indicate the frequency domain resource for the first group of STAs to receive the first data, and the first The second preamble includes second frequency spectrum allocation information, where the second channel allocation information is used to indicate frequency domain resources for the second group of STAs to receive the second data.

In yet another optional solution, the communication unit 2101 is further configured to receive the message sent by the AP when the difference between the service flow of the first channel and the service flow of the second channel is greater than a first threshold. A first notification message, where the first notification message is used to instruct some STAs in the first group of STAs to switch from the first channel to the second channel; or

The communication unit 2101 is further configured to receive a second notification message sent by the AP when the difference between the service flow of the second channel and the service flow of the first channel is greater than a first threshold, and the second The notification message is used to instruct some STAs in the second group of STAs to switch from the second channel to the first channel.

In another optional solution, the communication unit 2101 is further configured to receive a first management frame sent by the AP on the first channel, and the first management frame is used for the first group of STAs Determine the connection status with the AP;

The communication unit 2101 is further configured to receive a second management frame sent by the AP on the second channel, where the second management frame is used by the second group of STAs to determine a connection status with the AP.

In yet another optional solution, the communication unit 2101 is further configured to receive a first trigger frame sent by the AP on the first channel, and the first trigger frame includes the first spectrum allocation information, the first frequency spectrum allocation information is used to indicate the frequency domain resource for the first group of STAs to send third data to the AP, the second trigger frame includes a second duration, and the second duration is the The time when the fourth data is transmitted on the second channel; the communication unit 2101 is further configured to send the third data to the AP; the communication unit 2101 is further configured to receive the third data from the AP a response frame, the third response frame is used to notify the STA that the AP has received the third data; or

The communication unit 2101 is further configured to receive a second trigger frame sent by the AP on the second channel, the second trigger frame includes the second spectrum allocation information, and the second spectrum allocation information uses In order to instruct the second group of STAs to send the frequency domain resources of the fourth data to the AP, the second trigger frame includes a second duration, and the second duration is that the fourth data is transmitted on the second channel transmission time, wherein the first trigger frame and the second trigger frame are used to indicate the transmission time of the third data on the first channel and the transmission time of the fourth data on the second channel The transmission time is the same; the communication unit 2101 is further configured to send the fourth data to the AP; the communication unit 2101 is further configured to receive the fourth response frame of the AP, the fourth response frame It is used to notify the STA that the AP has received the fourth data.

It should be noted that the implementation and beneficial effects of each unit may also refer to the corresponding description of the method embodiment shown in FIG. 8 .

Please refer to FIG. 22. FIG. 22 is a multi-channel processing device 2200 provided by an embodiment of the present application, a processor 2201 and a transceiver 2203. Optionally, the multi-channel processing device 2200 further includes a memory 2202. The processor 2201 , the memory 2202 and the transceiver 2203 are connected to each other through the bus 2204 .

The memory 2202 includes but is not limited to random access memory (random access memory, RAM), read-only memory (read-only memory, ROM), erasable programmable read-only memory (erasable programmable read only memory, EPROM), or portable Read-only memory (compact disc read-only memory, CD-ROM), the memory 402 is used to store computer programs and data. The transceiver 2203 is used to receive and transmit data.

The processor 2201 may be one or more central processing units (central processing unit, CPU). In the case where the processor 2201 is a CPU, the CPU may be a single-core CPU or a multi-core CPU.

The processor 2201 in the multi-channel processing device 2200 calls the computer program stored in the memory 2202 to perform the following operations:

Generate a first message, the first message includes a first preamble and a second preamble, the first preamble includes first bandwidth information, and the first bandwidth information is based on the first group of station STAs The bandwidth of the occupied first channel is configured, the second preamble includes second bandwidth information, and the second bandwidth information is configured according to the bandwidth of the second channel occupied by the second group of station STAs, so The first channel has no intersection with the second channel, and the sum of the bandwidth of the first channel and the bandwidth of the second channel is less than or equal to the bandwidth supported by the access point AP;

Send the first message to the first group of STAs and the second group of STAs through the transceiver 2203, the first message includes first data and second data, and the first preamble is used to indicate The first group of STAs uses the first bandwidth information to receive the first data, and the second preamble is used to instruct the second group of STAs to use the second bandwidth information to receive the second data, The first group of STAs includes at least one STA, and the second group of STAs includes at least one STA;

Receive the first response frame from the first group of STAs and the second response frame from the second group of STAs through the transceiver 2203, the first response frame is used to notify the first group of STAs that the first group of STAs have received the first response frame One data, the second response frame is used to notify the second group of STAs that the second data has been received.

In an optional solution, the first preamble includes first spectrum allocation information, and the first spectrum allocation information is used to indicate frequency domain resources for the first group of STAs to receive the first data, so The second preamble includes second frequency spectrum allocation information, where the second channel allocation information is used to indicate frequency domain resources for the second group of STAs to receive the second data.

In yet another optional solution, the processor 2201 is further configured to: determine the service flow of the first channel and the service flow of the second channel;

When the difference between the service flow of the first channel and the service flow of the second channel is greater than a first threshold, send a first notification message to some STAs in the first group of STAs through the transceiver, and the first notification message is sent to some STAs in the first group of STAs, and the second channel A notification message is used to instruct some STAs in the first group of STAs to switch from the first channel to the second channel to become the second group of STAs; When the difference in traffic flow of a channel is greater than the first threshold, send a second notification message to some STAs in the second group of STAs through the transceiver, where the second notification message is used to indicate that the STAs in the second group Part of the STAs switching from the second channel to the first channel become the first group of STAs.

In yet another optional solution, the processor 2201 is further configured to: send a first management frame on the first channel through a transceiver, and the first management frame is used for the first group of STAs to determine The connection status with the AP;

Sending a second management frame on the second channel through the transceiver 2203, where the second management frame is used for the second group of STAs to determine the connection status with the AP.

In yet another optional solution, the processor 2201 is further configured to: send a first trigger frame to the first group of STAs on the first channel through the transceiver 2203, where the first trigger frame includes The first spectrum allocation information, the first spectrum allocation information is used to instruct the first group of STAs to send the frequency domain resources of the third data to the AP, the first trigger frame includes a first duration, the The first duration is the time when the third data is transmitted on the first channel; the third data sent by the first group of STAs is received by the transceiver 2203 on the first channel; sending a third response frame to the first group of STAs on the first channel, where the third response frame is used to notify the first group of STAs that the AP has received the third data;

Send a second trigger frame to the second group of STAs on the second channel through the transceiver 2203, where the second trigger frame includes the second spectrum allocation information, and the second spectrum allocation information is used to indicate the The second group of STAs sends frequency domain resources of fourth data to the AP, the second trigger frame includes a second duration, and the second duration is the time when the fourth data is transmitted on the second channel , wherein the first trigger frame and the second trigger frame are used to indicate the transmission time of the third data on the first channel and the transmission time of the fourth data on the second channel The same; receiving the fourth data sent by the second group of STAs on the second channel through the transceiver 2203; sending a fourth response frame to the second group of STAs on the second channel through the transceiver 2203, The fourth response frame is used to notify the second group of STAs that the AP has received the fourth data.

In yet another optional solution, the processor 2201 is configured to: send the first preamble and the first data and sending the second preamble and the second data to the second group of STAs on the second channel, wherein the first preamble and the first data are on the first channel The transmission time on is the same as the transmission time of the second preamble and the second data on the second channel.

It should be noted that the implementation and beneficial effects of each operation may also refer to corresponding descriptions of the method embodiment shown in FIG. 8 .

Please refer to FIG. 23. FIG. 23 is a multi-channel processing device 2300, a processor 2301 and a transceiver 2303 provided by an embodiment of the present application. Optionally, the multi-channel processing device 2300 further includes a memory 2302. The processor 2301 , the memory 2302 and the transceiver 2303 are connected to each other through the bus 2304 .

The memory 2302 includes but is not limited to random access memory (random access memory, RAM), read-only memory (read-only memory, ROM), erasable programmable read-only memory (erasable programmable read only memory, EPROM), or portable Read-only memory (compact disc read-only memory, CD-ROM), the memory 402 is used to store computer programs and data. The transceiver 2303 is used to receive and transmit data.

The processor 2301 may be one or more central processing units (central processing unit, CPU). In the case where the processor 2301 is a CPU, the CPU may be a single-core CPU or a multi-core CPU.

The processor 2301 in the multi-channel processing device 2300 invokes the computer program stored in the memory 2302 to perform the following operations:

Receive a first message sent by an access point AP, where the first message includes a first preamble and a second preamble;

identifying a first preamble in the first packet or a second preamble in the first packet, where the first preamble includes first bandwidth information, and the first bandwidth information is based on the first The bandwidth of the first channel occupied by a group of station STAs is configured, the second preamble includes second bandwidth information, and the second bandwidth information is based on the bandwidth of the second channel occupied by the second group of station STAs Configured;

Receive first data according to the first bandwidth information, or receive second data according to the second bandwidth information, the first message includes the first data and the second data, and the first The channel has no intersection with the second channel, and the sum of the bandwidth of the first channel and the bandwidth of the second channel is less than or equal to the bandwidth supported by the AP, and the station STA is the first group of station STAs or a second group of station STAs, the first group of STAs includes at least one STA, and the second group of STAs includes at least one STA;

Sending a first response frame to the AP on a first channel, where the first response frame is used to notify the AP that the STA has received the first data; or sending a second response frame to the AP on a second channel Two response frames, the second response frame is used to notify the AP that the STA has received the second data.

In an optional solution, the first preamble includes first spectrum allocation information, where the first spectrum allocation information is used to indicate the frequency domain resource for the first group of STAs to receive the first data, and the first The second preamble includes second frequency spectrum allocation information, where the second channel allocation information is used to indicate frequency domain resources for the second group of STAs to receive the second data.

In yet another optional solution, the processor 2301 is further configured to: when the difference between the service flow of the first channel and the service flow of the second channel is greater than a first threshold, through the sending and receiving receiving a first notification message sent by the AP, where the first notification message is used to instruct some of the STAs to switch from the first channel to the second channel; or

When the difference between the service flow of the second channel and the service flow of the first channel is greater than a first threshold, the transceiver receives a second notification message sent by the AP, and the second notification message uses Instructing some of the STAs to switch from the second channel to the first channel.

In yet another optional solution, the processor 2301 is further configured to: use the transceiver to receive a first management frame sent by the AP on the first channel, and the first management frame is used for the The first group of STAs determines the connection status with the AP;

The second management frame sent by the AP is received by the transceiver 2303 on the second channel, and the second management frame is used for the second group of STAs to determine a connection status with the AP.

In another optional solution, the processor 2301 is further configured to: receive a first trigger frame sent by the AP on the first channel through the transceiver 2303, the first trigger frame includes The first spectrum allocation information, the first spectrum allocation information is used to instruct the STA to send the frequency domain resources of the third data to the AP; the first trigger frame includes a first duration, and the first duration is the time when the third data is transmitted on the first channel; sending the third data to the AP through the transceiver 2303; receiving a third response frame of the AP through the transceiver 2303, The third response frame is used to notify the STA that the AP has received the third data; or

The second trigger frame sent by the AP is received by the transceiver 2303 on the second channel, the second trigger frame includes the second spectrum allocation information, and the second spectrum allocation information is used to indicate the The STA sends the frequency domain resource of the fourth data to the AP, the second trigger frame includes a second duration, and the second duration is the time when the fourth data is transmitted on the second channel, wherein, The first trigger frame and the second trigger frame are used to indicate that the transmission time of the third data on the first channel is the same as the transmission time of the fourth data on the second channel; by The transceiver 2303 sends the fourth data to the AP; the transceiver 2303 receives a fourth response frame of the AP, and the fourth response frame is used to notify the STA that the AP has received the Describe the fourth data.

It should be noted that the implementation and beneficial effects of each operation may also refer to corresponding descriptions of the method embodiment shown in FIG. 8 .

The embodiment of the present application also provides a chip system, the chip system includes at least one processor, a memory and an interface circuit, the memory, the transceiver and the at least one processor are interconnected by wires, and the at least one memory A computer program is stored in the computer; when the computer program is executed by the processor, the method flow shown in FIG. 8 is realized.

An embodiment of the present application also provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program is run on a processor, the method flow shown in FIG. 8 is implemented.

An embodiment of the present application further provides a computer program product, and when the computer program product is run on a processor, the method flow shown in FIG. 8 is implemented.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments are realized. The processes can be completed by computer programs or hardware related to the computer programs. The computer programs can be stored in computer-readable storage media. The computer programs During execution, it may include the processes of the foregoing method embodiments. The aforementioned storage medium includes: ROM or random access memory RAM, magnetic disk or optical disk, and other various media that can store computer program codes.

Claims (17)

1. A multi-channel processing method, characterized in that, comprising: The access point AP generates a first message, the first message includes a first preamble and a second preamble, the first preamble includes first bandwidth information, and the first bandwidth information is based on the first preamble The bandwidth of the first channel occupied by a group of station STAs is configured, the second preamble includes second bandwidth information, and the second bandwidth information is based on the bandwidth of the second channel occupied by the second group of station STAs Configured, the first channel has no intersection with the second channel, and the sum of the bandwidth of the first channel and the bandwidth of the second channel is less than or equal to the bandwidth supported by the AP; The AP sends the first packet to the first group of STAs and the second group of STAs, the first packet includes first data and second data, and the first preamble is used to indicate that the The first group of STAs uses the first bandwidth information to receive the first data, and the second preamble is used to instruct the second group of STAs to use the second bandwidth information to receive the second data , the first group of STAs includes at least one STA, and the second group of STAs includes at least one STA; The AP receives a first response frame from the first group of STAs and a second response frame from the second group of STAs, the first response frame is used to notify the AP that the first group of STAs have received the The first data, the second response frame is used to notify the AP that the second group of STAs have received the second data; The AP determines the service flow of the first channel and the service flow of the second channel; When the difference between the service flow of the first channel and the service flow of the second channel is greater than a first threshold, the AP sends a first notification message to some STAs in the first group of STAs, and the first notification message is sent by the AP to some STAs in the first group of STAs. A notification message is used to instruct some STAs in the first group of STAs to switch from the first channel to the second channel to become the second group of STAs; The AP sends a first management frame on the first channel, and the first management frame is used by the first group of STAs to determine a connection status with the AP; The AP sends a second management frame on the second channel, and the second management frame is used for the second group of STAs to determine a connection state with the AP. 2. The method according to claim 1, wherein the first preamble includes first spectrum allocation information, and the first spectrum allocation information is used to instruct the first group of STAs to receive the first data frequency domain resources, the second preamble includes second spectrum allocation information, and the second channel allocation information is used to indicate frequency domain resources for the second group of STAs to receive the second data. 3. The method according to claim 1 or 2, characterized in that the method further comprises: When the difference between the service flow of the second channel and the service flow of the first channel is greater than the first threshold, the AP sends a second notification message to some STAs in the second group of STAs, so that The second notification message is used to instruct some STAs in the second group of STAs to switch from the second channel to the first channel to become the first group of STAs. 4. The method according to claim 2, characterized in that the method further comprises: The AP sends a first trigger frame to the first group of STAs on the first channel, where the first trigger frame includes the first spectrum allocation information, and the first spectrum allocation information is used to indicate the The first group of STAs sends frequency domain resources of third data to the AP, the first trigger frame includes a first duration, and the first duration is the time when the third data is transmitted on the first channel; The AP receives third data sent by the first group of STAs on the first channel; The AP sends a third response frame to the first group of STAs on the first channel, and the third response frame is used to notify the first group of STAs that the AP has received the third data; The AP sends a second trigger frame to the second group of STAs on the second channel, the second trigger frame includes the second spectrum allocation information, and the second spectrum allocation information is used to indicate the The second group of STAs sends frequency domain resources of fourth data to the AP, the second trigger frame includes a second duration, and the second duration is the time when the fourth data is transmitted on the second channel, Wherein, the first trigger frame and the second trigger frame are used to indicate that the transmission time of the third data on the first channel is the same as the transmission time of the fourth data on the second channel ; The AP receives fourth data sent by the second group of STAs on the second channel; The AP sends a fourth response frame to the second group of STAs on the second channel, where the fourth response frame is used to notify the second group of STAs that the AP has received the fourth data. 5. The method according to claim 1, wherein the AP sends the first message to the first group of STAs and the second group of STAs, comprising: The AP sends the first preamble and the first data to the first group of STAs on the first channel and sends the first data to the second group of STAs on the second channel at the same time. the second preamble and the second data, wherein the transmission time of the first preamble and the first data on the first channel is different from that of the second preamble and the second data at The transmission time on the second channel is the same. 6. A multi-channel processing method, characterized in that, comprising: The station STA receives the first message sent by the access point AP, where the first message includes a first preamble and a second preamble; The STA identifies the first preamble or the second preamble, the first preamble includes first bandwidth information, and the first bandwidth information is the first channel occupied by the STA according to the first group of stations The second preamble includes second bandwidth information, and the second bandwidth information is configured according to the bandwidth of the second channel occupied by the second group of STAs; The STA receives the first data according to the first bandwidth information, or receives the second data according to the second bandwidth information, the first packet includes the first data and the second data, and the There is no intersection between the first channel and the second channel, and the sum of the bandwidth of the first channel and the bandwidth of the second channel is less than or equal to the bandwidth supported by the AP, and the STA belongs to the first group STA or a second group of STAs, the first group of STAs includes at least one STA, and the second group of STAs includes at least one STA; The STA sends a first response frame to the AP on the first channel, and the first response frame is used to notify the AP that the STA has received the first data; or the STA is on the second channel sending a second response frame to the AP, where the second response frame is used to notify the AP that the STA has received the second data; When the difference between the service flow of the first channel and the service flow of the second channel is greater than a first threshold, some of the STAs receive a first notification message sent by the AP, and the first notification The message is used to instruct some of the STAs to switch from the first channel to the second channel; The STA receives a first management frame sent by the AP on the first channel, and the first management frame is used by the first group of STAs to determine the connection status with the AP; The STA receives a second management frame sent by the AP on the second channel, and the second management frame is used for the second group of STAs to determine a connection status with the AP. 7. The method according to claim 6, wherein the first preamble includes first spectrum allocation information, and the first spectrum allocation information is used to indicate the frequency on which the first group of STAs receive the first data. Domain resources, where the second preamble includes second spectrum allocation information, where the second channel allocation information is used to indicate frequency domain resources for the second group of STAs to receive second data. 8. The method according to claim 6 or 7, further comprising: When the difference between the service flow of the second channel and the service flow of the first channel is greater than the first threshold, some of the STAs receive a second notification message sent by the AP, and the second notification message is sent by the AP. The second notification message is used to instruct some of the STAs to switch from the second channel to the first channel. 9. The method according to claim 7, further comprising: The STA receives a first trigger frame sent by the AP on the first channel, the first trigger frame includes the first spectrum allocation information, and the first spectrum allocation information is used to instruct the STA to The AP sends the frequency domain resource of the third data, the first trigger frame includes a first duration, and the first duration is the time when the third data is transmitted on the first channel; The STA sends the third data to the AP; The STA receives a third response frame from the AP, where the third response frame is used to notify the STA that the AP has received the third data; or The STA receives a second trigger frame sent by the AP on the second channel, the second trigger frame includes the second spectrum allocation information, and the second spectrum allocation information is used to instruct the STA to The AP sends the frequency domain resource of the fourth data, the second trigger frame includes a second duration, and the second duration is the time when the fourth data is transmitted on the second channel, wherein the first A trigger frame and the second trigger frame are used to indicate that the transmission time of the third data on the first channel is the same as the transmission time of the fourth data on the second channel; The STA sends the fourth data to the AP; The STA receives a fourth response frame from the AP, where the fourth response frame is used to notify the STA that the AP has received the fourth data. 10. A multi-channel processing device for access point AP, characterized in that, comprising: A processing unit, configured to generate a first message, the first message includes a first preamble and a second preamble, the first preamble includes first bandwidth information, and the first bandwidth information is based on The bandwidth of the first channel occupied by the first group of station STAs is configured, the second preamble includes second bandwidth information, and the second bandwidth information is based on the frequency of the second channel occupied by the second group of station STAs For wide configuration, the first channel has no intersection with the second channel, and the sum of the bandwidth of the first channel and the bandwidth of the second channel is less than or equal to the bandwidth supported by the device; a communication unit, configured to send the first packet to the first group of STAs and the second group of STAs, the first packet includes first data and second data, and the first preamble is used for Instructing the first group of STAs to use the first bandwidth information to receive the first data, and the second preamble is used to instruct the second group of STAs to use the second bandwidth information to receive the first data Two data, the first group of STAs includes at least one STA, and the second group of STAs includes at least one STA; The communication unit is configured to receive a first response frame from the first group of STAs and a second response frame from the second group of STAs, the first response frame is used to notify the first group of STAs that the The first data, the second response frame is used to notify the second group of STAs that the second data has been received; The processing unit is further configured to determine the service flow of the first channel and the service flow of the second channel; The communication unit is further configured to send a first notification message to some STAs in the first group of STAs when the difference between the service flow of the first channel and the service flow of the second channel is greater than a first threshold , the first notification message is used to instruct some STAs in the first group of STAs to switch from the first channel to the second channel to become the second group of STAs; The communication unit is further configured to send a first management frame on the first channel, and the first management frame is used for the first group of STAs to determine the connection status with the AP; The communication unit is further configured to send a second management frame on the second channel, where the second management frame is used by the second group of STAs to determine a connection status with the AP. 11. The apparatus according to claim 10, wherein the first preamble includes first spectrum allocation information, and the first spectrum allocation information is used to instruct the first group of STAs to receive the first data frequency domain resources, the second preamble includes second spectrum allocation information, and the second channel allocation information is used to indicate frequency domain resources for the second group of STAs to receive the second data. 12. The device according to claim 10 or 11, wherein the device further comprises: The communication unit is further configured to send a second A notification message, where the second notification message is used to instruct some STAs in the second group of STAs to switch from the second channel to the first channel to become the first group of STAs. 13. The device according to claim 11, further comprising: The communication unit is further configured to send a first trigger frame to the first group of STAs on the first channel, where the first trigger frame includes the first spectrum allocation information, and the first spectrum allocation information A frequency domain resource used to instruct the first group of STAs to send third data to the AP, the first trigger frame includes a first duration, and the first duration is the third data on the first channel the time of the upload; The communication unit is further configured to receive third data sent by the first group of STAs on the first channel; The communication unit is further configured to send a third response frame to the first group of STAs on the first channel, and the third response frame is used to notify the STAs that the AP has received the third data ; The communication unit is further configured to send a second trigger frame to the second group of STAs on the second channel, where the second trigger frame includes the second spectrum allocation information, and the second spectrum allocation information A frequency domain resource for instructing the second group of STAs to send fourth data to the AP, the second trigger frame includes a second duration, and the second duration is the fourth data on the second channel transmission time, wherein the first trigger frame and the second trigger frame are used to indicate the transmission time of the third data on the first channel and the transmission time of the fourth data on the second channel The transmission time on the same; The communication unit is further configured to receive fourth data sent by the second group of STAs on the second channel; The communication unit is further configured to send a fourth response frame to the second group of STAs on the second channel, where the fourth response frame is used to notify the STAs that the AP has received the fourth data . 14. A multi-channel processing device for a station STA, characterized in that it comprises: A communication unit, configured to receive a first message sent by an access point AP, where the first message includes a first preamble and a second preamble; A processing unit, configured to identify the first preamble or the second preamble, where the first preamble includes first bandwidth information, and the first bandwidth information is based on the first group of stations occupied by the first group of stations. The bandwidth of a channel is configured, the second preamble includes second bandwidth information, and the second bandwidth information is configured according to the bandwidth of the second channel occupied by the second group of station STAs; The communication unit is further configured to receive first data according to the first bandwidth information, or receive second data according to the second bandwidth information, and the first message includes the first data and the The second data, the first channel has no intersection with the second channel, and the sum of the bandwidth of the first channel and the bandwidth of the second channel is less than or equal to the bandwidth supported by the AP, the the first group of STAs includes at least one STA, and the second group of STAs includes at least one STA; The communication unit is further configured to send a first response frame to the AP on a first channel, where the first response frame is used to notify the AP that the STA has received the first data; or in the second sending a second response frame to the AP on a channel, where the second response frame is used to notify the AP that the STA has received the second data; The communication unit is further configured to receive a first notification message sent by the AP when the difference between the service flow of the first channel and the service flow of the second channel is greater than a first threshold, and the first notification The message is used to instruct some STAs in the first group of STAs to switch from the first channel to the second channel; The communication unit is further configured to receive a first management frame sent by the AP on the first channel, and the first management frame is used by the first group of STAs to determine the connection status with the AP; The communication unit is further configured to receive a second management frame sent by the AP on the second channel, and the second management frame is used for the second group of STAs to determine a connection status with the AP. 15. The apparatus according to claim 14, wherein the first preamble includes first spectrum allocation information, and the first spectrum allocation information is used to indicate the frequency at which the first group of STAs receive the first data. Domain resources, where the second preamble includes second spectrum allocation information, where the second channel allocation information is used to indicate frequency domain resources for the second group of STAs to receive second data. 16. The device according to claim 14 or 15, wherein the device further comprises: The communication unit is further configured to receive a second notification message sent by the AP when the difference between the service flow of the second channel and the service flow of the first channel is greater than the first threshold, and the second notification message is sent by the AP. The second notification message is used to instruct some STAs in the second group of STAs to switch from the second channel to the first channel. 17. The apparatus of claim 15, wherein: The communication unit is further configured to receive a first trigger frame sent by the AP on the first channel, where the first trigger frame includes the first spectrum allocation information, and the first spectrum allocation information is used for Instructing the first group of STAs to send frequency domain resources of third data to the AP; the first trigger frame includes a first duration, and the first duration is for the third data to be transmitted on the first channel time; The communication unit is further configured to send the third data to the AP; The communication unit is further configured to receive a third response frame from the AP, where the third response frame is used to notify the STA that the AP has received the third data; or The communication unit is further configured to receive a second trigger frame sent by the AP on the second channel, the second trigger frame includes the second spectrum allocation information, and the second spectrum allocation information is used for Instructing the second group of STAs to send frequency domain resources of fourth data to the AP, the second trigger frame includes a second duration, and the second duration is for the fourth data to be transmitted on the second channel time, wherein the first trigger frame and the second trigger frame are used to indicate the transmission time of the third data on the first channel and the transmission time of the fourth data on the second channel The transfer time is the same; The communication unit is further configured to send the fourth data to the AP; The communication unit is further configured to receive a fourth response frame from the AP, where the fourth response frame is used to notify the STA that the AP has received the fourth data.