CN111050357B - A communication method and device for a terminal and a base station - Google Patents

Abstract

The embodiment of the application provides a communication method and a device of a terminal and a base station, wherein the communication of the terminal and the base station comprises the following steps: the terminal determines a target address through a priority list in a first mode, wherein the target address is an address corresponding to the highest priority information, and the priority list comprises at least one first address and at least one second address and priority information of the at least one first address and the at least one second address; and the terminal receives a first message corresponding to the target address from the base station. In the embodiment of the application, the terminal can distinguish the priority order of the unicast and multicast addresses through the priority list, and when the unicast and multicast transmission collide, the downlink data corresponding to the highest priority address is received according to the priority order, thereby improving the transmission efficiency between the terminal and the base station.

Description

A communication method and device for a terminal and a base station

technical field

The present application relates to the field of communication technologies, and in particular, to a communication method between a terminal and a base station, and a communication device between a terminal and a base station.

Background technique

The Internet of Things technology is the third information technology revolution after computers and the Internet. It has the advantages of real-time and interactivity, and has been widely used in many fields such as urban management, digital home, positioning and navigation, logistics management, and security systems. Among them, LoRa is an ultra-long-distance transmission scheme based on spread spectrum technology in the Internet of Things, which has the characteristics of long transmission distance, low power consumption, multi-node and low cost.

In the existing data transmission method, the LoRa network usually includes terminals, base stations and servers.

The working modes of the LoRa terminal include: Class B mode. ClassB mode is suitable for various remote control switches and other scenarios. Generally, a terminal operating in the Class B mode can obtain one or more pulse slots (ping slots) within a beacon period (Beacon_period). The period (pingPeriod) for the terminal to obtain the pulse time slot within one beacon period may be calculated and generated by a preset parameter in the terminal (for example, the number of pulse time slots (pingNb)). The LoRa base station realizes time synchronization between the terminal and the network by sending beacon frames (Beacon) to the terminal. The terminal's first available pulse slot occurs at the beacon reservation time plus the product of the pulse offset (pingOffset) and a pulse slot length (slotLen).

However, in the prior art, the burst time slots required for unicast and multicast transmission in class B mode may overlap. In the case of overlap, the terminal may fail to transmit the unicast downlink data to the terminal due to preferentially receiving the multicast downlink data by default. As a result, the unicast downlink service cannot be performed.

Contents of the invention

In view of the above problems, the embodiments of the present application are proposed to provide a communication method between a terminal and a base station and a communication device between a terminal and a base station that overcome the above problems or at least partially solve the above problems.

In order to solve the above problems, the embodiment of the present application discloses a communication method between a terminal and a base station, including:

In the first mode, the terminal determines target address information through a priority list, where the target address information is address information corresponding to the highest priority information, and the priority list includes at least one first address information and at least one second Address information and corresponding priority information of at least one first address information and at least one second address information;

The terminal receives the first message corresponding to the target address information from the base station.

Preferably, it also includes:

The first address information is unicast address information.

Preferably, it also includes:

The second address information is multicast address information.

Preferably, it also includes:

Before determining the target address information, the terminal determines that the priority list is not empty.

Preferably, it also includes:

If the terminal determines that the priority list is empty in the first mode, then use at least one piece of second address information as target address information.

The embodiment of the present application also discloses a communication device between a terminal and a base station, including:

A processing module located at the terminal, configured to determine target address information through a priority list in the first mode, where the target address information is address information corresponding to information with the highest priority, and the priority list includes at least one first Address information and at least one second address information and corresponding priority information of at least one first address information and at least one second address information;

The receiving module located in the terminal is configured to receive the first message corresponding to the target address information from the base station.

Preferably, it also includes:

The first address information is unicast address information.

Preferably, it also includes:

The second address information is multicast address information.

Preferably, it also includes:

Before determining the target address information, the terminal determines that the priority list is not empty.

Preferably, it also includes:

If the terminal determines that the priority list is empty in the first mode, then use at least one piece of second address information as target address information.

The embodiment of the present application also discloses a device, including:

one or more processors; and

One or more machine-readable media having instructions stored thereon which, when executed by the one or more processors, cause the apparatus to perform one or more of the methods described above.

The embodiment of the present application also discloses one or more machine-readable media, on which instructions are stored, and when executed by one or more processors, the device executes one or more methods as described above.

The embodiment of the present application includes the following advantages:

In the embodiment of this application, the terminal can distinguish the priority order of unicast and multicast addresses through the priority list, and when the unicast and multicast transmissions collide, receive the downlink address corresponding to the highest priority address according to the priority order. Data, improving the transmission efficiency between the terminal and the base station.

Description of drawings

FIG. 1 is a flow chart of steps in Embodiment 1 of a communication method between a terminal and a base station of the present application;

Fig. 2 is a structural block diagram of Embodiment 2 of a communication device between a terminal and a base station according to the present application.

Detailed ways

In order to make the above objects, features and advantages of the present application more obvious and comprehensible, the present application will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

The LoRa network consists of terminal nodes, base station nodes and servers. The terminal has the ability to connect to the LoRa network and access the LoRa network. According to the different application scenarios deployed by the LoRa network, the terminal may include different electronic devices. For example, when the LoRa network is applied to city management, the terminal may include a smart meter; when the LoRa network is applied to a digital home In this case, the terminal may include various smart home appliances and the like.

The base station, also known as a gateway or a concentrator in the LoRa network, has the function of wireless connection aggregation, including the terminal providing the entrance to the LoRa network, forwarding the data from the server or terminal, and realizing the data transfer between the terminal and the server. interact. Of course, the base station can also perform data interaction with other base stations within the signal coverage of the base station by transmitting wireless frames.

The server may include a server or a server cluster, which is used for performing service processing according to the data obtained from the base station or the terminal, and controlling the working mode and working state of the base station or the terminal.

One of the core concepts of the embodiments of the present application is that the terminal obtains the channel usage scheme of the base station through network access signaling, so as to judge whether the same channel usage scheme can be used to access the network.

In the following, the communication process between the terminal and the base station is firstly introduced from the perspective of the terminal.

Referring to FIG. 1 , it shows a flow chart of the steps of Embodiment 1 of a communication method between a terminal and a base station of the present application, which may specifically include the following steps:

Step 101, the terminal determines target address information through a priority list in the first mode, the target address information is address information corresponding to the highest priority information, and the priority list includes at least one first address information and at least one A piece of second address information and corresponding priority information of at least one first address information and at least one second address information;

Specifically, the first mode may be a class B mode. The terminal can obtain the priority list in a preset manner. The priority list includes one or more unicast and one or more multicast address information and priorities corresponding to the address information. The representation form of the priority list can refer to Table 1.

Table 1 Priority list

Bytes 4 1 priority list Address information priority information

The address information in the list occupies 4 bytes. The priority information in the list occupies 1 byte. The priority list can be used by the application to set the priority of the corresponding address information. The application may also not set any priority corresponding to the address information, and set the priority list to be empty. If the priority list is empty, the terminal may consider by default that the priority of the burst time slot corresponding to the multicast address information is higher than that of the burst time slot corresponding to the unicast address information. Optionally, the terminal may also consider by default that the burst time slot corresponding to the unicast address information has a higher priority than the burst time slot corresponding to the multicast address information. If the terminal is only configured with multiple multicast address information but no unicast address information, the priorities corresponding to the multiple multicast address information can be determined by the application. In the solution of the present invention, the priority information corresponding to the address information may be equal to the priority information of the pulse time slot corresponding to the address information.

In the embodiment of the present application, the step 101 in which the terminal determines the target address information through the priority list in the first mode may include the following sub-steps:

In sub-step S1011, the terminal determines that the priority list is not empty before determining the target address information.

Specifically, before determining the target address information, the terminal first judges whether the priority list is empty. If the priority list is empty, the terminal will default high priority address information as the target address information. For example, the terminal may consider by default that the priority corresponding to the unicast address information is higher than the priority corresponding to the multicast address information. Optionally, the terminal may also consider by default that the priority corresponding to the multicast address information is higher than the priority corresponding to the unicast address information.

Step 102, the terminal receives a first message corresponding to the target address information from the base station.

Specifically, the first message may be any downlink data frame. The terminal determines, according to the target address information, to receive the downlink data frame corresponding to the target address information in the corresponding burst time slot. The pulse time slot is determined by a calculation formula containing the target address information.

In the embodiment of this application, the terminal can distinguish the priority order of unicast and multicast addresses through the priority list, and when the unicast and multicast transmissions collide, receive the downlink address corresponding to the highest priority address according to the priority order. Data, improving the transmission efficiency between the terminal and the base station.

Referring to FIG. 2 , it shows a structural block diagram of Embodiment 2 of a communication device between a terminal and a base station of the present application, which may specifically include the following modules:

The processing module 201 located at the terminal is configured to determine target address information through a priority list in the first mode, the target address information is address information corresponding to the highest priority information, and the priority list includes at least one An address information and at least one second address information and corresponding priority information of at least one first address information and at least one second address information;

Specifically, the first mode may be a class B mode. The terminal can obtain the priority list in a preset manner. The priority list includes one or more unicast and one or more multicast address information and priorities corresponding to the address information. The representation form of the priority list can refer to Table 1.

Table 2 Priority list

Bytes 4 1 priority list Address information priority information

The address information in the list occupies 4 bytes. The priority information in the list occupies 1 byte. The priority list can be used by the application to set the priority of the corresponding address information. The application may also not set any priority corresponding to the address information, and set the priority list to be empty. If the priority list is empty, the terminal may consider by default that the priority of the burst time slot corresponding to the multicast address information is higher than that of the burst time slot corresponding to the unicast address information. Optionally, the terminal may also consider by default that the burst time slot corresponding to the unicast address information has a higher priority than the burst time slot corresponding to the multicast address information. If the terminal is only configured with multiple multicast address information but no unicast address information, the priorities corresponding to the multiple multicast address information may be determined by the application. In the solution of the present invention, the priority information corresponding to the address information may be equal to the priority information of the pulse time slot corresponding to the address information.

In the embodiment of the present application, the step 201 in which the processing module located at the terminal determines the target address information through the priority list in the first mode may include the following sub-steps:

In sub-step S2011, the terminal determines that the priority list is not empty before determining the target address information.

Specifically, before determining the target address information, the terminal first judges whether the priority list is empty. If the priority list is empty, the terminal will default high priority address information as the target address information. For example, the terminal may consider by default that the priority corresponding to the unicast address information is higher than the priority corresponding to the multicast address information. Optionally, the terminal may also consider by default that the priority corresponding to the multicast address information is higher than the priority corresponding to the unicast address information.

The receiving module 202 located in the terminal is configured to receive the first message corresponding to the target address information from the base station.

Specifically, the first message may be any downlink data frame. The terminal determines, according to the target address information, to receive the downlink data frame corresponding to the target address information in the corresponding burst time slot. The pulse time slot is determined by a calculation formula containing the target address information.

In the embodiment of this application, the terminal can distinguish the priority order of unicast and multicast addresses through the priority list, and when the unicast and multicast transmissions collide, receive the downlink address corresponding to the highest priority address according to the priority order. Data, improving the transmission efficiency between the terminal and the base station.

As for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and for related parts, please refer to the part of the description of the method embodiment.

The embodiment of the present application also provides a device, including:

one or more processors; and

One or more machine-readable media having instructions stored thereon, when executed by the one or more processors, causes the device to execute the method described in the embodiments of the present application.

The embodiment of the present application also provides one or more machine-readable media, on which instructions are stored, and when executed by one or more processors, the device executes the method described in the embodiment of the present application.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

Those skilled in the art should understand that the embodiments of the embodiments of the present application may be provided as methods, devices, or computer program products. Therefore, the embodiment of the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

Embodiments of the present application are described with reference to flowcharts and/or block diagrams of methods, terminal devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor or processor of other programmable data processing terminal equipment to produce a machine such that instructions executed by the computer or processor of other programmable data processing terminal equipment Produce means for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing terminal to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the The instruction means implements the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded into a computer or other programmable data processing terminal equipment, so that a series of operational steps are performed on the computer or other programmable terminal equipment to produce computer-implemented processing, thereby The instructions executed above provide steps for implementing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

While the preferred embodiments of the embodiments of the present application have been described, additional changes and modifications can be made to these embodiments by those skilled in the art once the basic inventive concept is understood. Therefore, the appended claims are intended to be interpreted to cover the preferred embodiment and all changes and modifications that fall within the scope of the embodiments of the application.

Finally, it should also be noted that in this text, relational terms such as first and second etc. are only used to distinguish one entity or operation from another, and do not necessarily require or imply that these entities or operations, any such actual relationship or order exists. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or terminal equipment comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements identified, or also include elements inherent in such a process, method, article, or terminal equipment. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or terminal device comprising said element.

A method for communicating between a terminal and a base station, a device for communicating between a terminal and a base station, a method for connecting a terminal to a network, and a device for connecting a terminal to a network provided by this application have been introduced above in detail. Specific examples are used in this article The principles and implementation methods of the application have been described, and the descriptions of the above examples are only used to help understand the method and core ideas of the application; meanwhile, for those of ordinary skill in the art, according to the ideas of the application, in the specific implementation methods There will be changes in the scope of application and the scope of application. In summary, the content of this specification should not be construed as limiting the application.

Claims (7)

1. A communication method between a terminal and a base station, comprising: In the first mode, the terminal determines target address information through a priority list, where the target address information is address information corresponding to the highest priority information, and the priority list includes at least one first address information and at least one second Address information and corresponding priority information of at least one first address information and at least one second address information, the first mode is a class B mode in LoRa technology, and the first address information is unicast address information, so The second address information is multicast address information; The terminal receives the first message corresponding to the target address information from the base station. 2. The method according to claim 1, wherein the step of the terminal determining the target address information through the priority list in the first mode further comprises: Before determining the target address information, the terminal determines that the priority list is not empty. 3. The method according to claim 2, further comprising: If the terminal determines that the priority list is empty in the first mode, then use at least one piece of second address information as target address information. 4. A communication device between a terminal and a base station, comprising: A processing module located at the terminal, configured to determine target address information through a priority list in the first mode, where the target address information is address information corresponding to information with the highest priority, and the priority list includes at least one first Address information and at least one second address information and corresponding priority information of at least one first address information and at least one second address information, the first mode is a class B mode in LoRa technology, and the first address information is unicast address information, and the second address information is multicast address information; The receiving module located in the terminal is configured to receive the first message corresponding to the target address information from the base station. 5. The device according to claim 4, wherein the step of the terminal determining the target address information through the priority list in the first mode further comprises: Before determining the target address information, the terminal determines that the priority list is not empty. 6. The device according to claim 4, further comprising: If the terminal determines that the priority list is empty in the first mode, then use at least one piece of second address information as target address information. 7. A machine-readable medium, characterized in that instructions are stored thereon, and when the instructions are executed by one or more processors, the device performs the method according to any one of claims 1-3 .