CN102013963B - Data transmission method and device - Google Patents

Abstract

The embodiment of the invention provides data transmission method and device. The method comprises the steps of: determining a sending mode of uplink grouped data according to the received control information sent by a wireless network controller; and sending the uplink grouped data to a base station through a special physical data channel of an enhanced dedicated channel according to the determined sending mode, wherein the control information comprises sizes of transmission blocks configured in advance by the wireless network controller, or the control information comprises sizes of the transmission blocks configured in advance by the wireless network controller and fixed redundancy versions. The data transmission method and device of the embodiment of the invention reduce the uplink interference through reducing the sending of the uplink control information and increase the user quantity supported by the network.

Description

A data transmission method and device

technical field

The present invention relates to data transmission, in particular to a data transmission method and device.

Background technique

With the development of communication technology and the increase of business needs in various industries, MTC (Machine Type Communications, Machine Type Communication) has developed accordingly. MTC refers to the network between one or more network elements without human participation. Communications, such as telemetry, telematics, security and monitoring, public transportation, industrial applications, remote meter reading, home applications, sales and payment applications, these applications are collectively referred to as M2M (Machine To Machine, machine-to-machine) applications. In M2M applications, multiple M2ME (Machine To'Machine Equipment; Machine To Machine Equipment, hereinafter collectively referred to as UE) with the same M2M application form a whole, referred to as a group (Group). Network operators or industry users can use the group as a whole to manage or control. For example, in the application of remote meter reading in the power industry, we can form a group of all the meters in a city, and network operators and users in the power industry can perform mobility management optimization or access management on the group as a whole.

The inventor found in the process of realizing the present invention that in the existing UMTS (Universal MobileTelecommunications System, universal mobile communication system) network, the packet transmission of UE uplink data adopts E-DCH (Enhanced Dedicated Channel, Enhanced Dedicated Channel) channel transmission , including E-DPDCH (E-DCH Dedicated Physical Data Channel, E-DCH Dedicated Physical Data Channel) channel carrying packet data and E-DPCCH (E-DCHDedicated Physical Control Channel, E-DCH Dedicated Physical Control Channel) carrying corresponding control information control channel) channel. Among them, E-DPCCH carries 10-bit control information related to packet data transmission, including 7-bit E-TFCI (E-DCH Transport Format Combination Indicator, E-DCH Transport Format Combination Indicator), which is used to indicate the transmission block size; 2 bits The RSN (Retransmission Sequence Number, retransmission sequence number) is used to indicate the HARQ (Hybrid Automatic Repeat Request, hybrid automatic repeat request) transmission number, and then obtain the redundancy version information; and 1 bit happy bit (happy bit), used for Indicates whether the UE wishes to obtain larger transmission resources. The E-DPCCH channel is always sent together with the E-DPDCH channel in a TTI (Transmission Time Interval, transmission time interval). At the same time, the uplink channel transmission needs to be accompanied by the DPCCH channel for power control and channel estimation.

Therefore, in the transmission of uplink data packets, especially when there are a large number of UEs in the network, the uplink interference caused by the control channel will increase significantly, resulting in an increase in the interference level of the cell, reducing the number of users that the network can support and the uplink throughput. .

Contents of the invention

Embodiments of the present invention provide a data transmission method and device to solve the technical problems of uplink interference of a large number of M2M terminals and the reduction of the number of users supported by the network.

The above object of the embodiments of the present invention is achieved through the following technical solutions:

An embodiment of the present invention provides a data transmission method. The method includes: determining the transmission mode of uplink packet data according to the received control information sent by the radio network controller; according to the determined transmission mode, through the enhanced dedicated channel The dedicated physical data channel sends uplink packet data to the base station; wherein, the control information includes the transport block size pre-configured by the radio network controller; or the control information includes the transport block size pre-configured by the radio network controller and Fixed redundant version.

The embodiment of the present invention also provides a data transmission method, the method includes: determining the receiving mode of the uplink packet data sent by the user equipment according to the received control information sent by the radio network controller; Blind detection and reception of uplink packet data sent through the dedicated physical data channel of the enhanced dedicated channel; wherein, the control information includes the transport block size pre-configured by the radio network controller; or the control information includes the radio network control The server pre-configured transport block size and fixed redundancy version.

The embodiment of the present invention also provides a user equipment, the user equipment includes: a determining unit, configured to determine the transmission mode of uplink packet data according to the control information sent by the radio network controller; a sending unit, configured to determine according to the determining unit The determined sending mode is to send the uplink packet data to the base station through the dedicated physical data channel of the enhanced dedicated channel; wherein, the control information includes the transport block size pre-configured by the radio network controller; or the control information includes the radio network controller. Network controller pre-configured transport block size and fixed redundancy version.

The embodiment of the present invention also provides a base station, the base station includes: a determining unit, configured to determine the receiving mode of the uplink packet data sent by the user equipment according to the control information sent by the radio network controller; a detecting and receiving unit, configured to The reception mode determined by the determination unit performs blind detection and reception on the uplink packet data sent by the user equipment through the dedicated physical data channel of the enhanced dedicated channel; wherein the control information includes the transport block size pre-configured by the radio network controller; Or the control information includes a transport block size and a fixed redundancy version pre-configured by the radio network controller.

The data transmission method and device of the embodiments of the present invention reduce the uplink interference by reducing the transmission of uplink control information, and increase the number of users that the network can support.

Description of drawings

The drawings described here are used to provide further understanding of the present invention, constitute a part of the application, and do not limit the present invention. In the attached picture:

Fig. 1 is a method flowchart of an embodiment of the present invention;

Fig. 2 is a method flowchart of an implementation manner of the embodiment shown in Fig. 1;

Fig. 3 is a method flowchart of another implementation manner of the embodiment shown in Fig. 1;

Fig. 4 is a method flowchart of another embodiment of the present invention;

FIG. 5 is a block diagram of user equipment according to an embodiment of the present invention;

Fig. 6 is a composition block diagram of a base station according to an embodiment of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

Embodiment one

An embodiment of the present invention provides a data transmission method, which will be described in detail below with reference to the accompanying drawings.

Fig. 1 is the method flowchart of this embodiment, please refer to Fig. 1, the data transmission method of this embodiment includes the following steps:

Step 101: The user equipment determines the sending mode of uplink packet data according to the received control information sent by the radio network controller;

In this embodiment, the control information may include several transmission block sizes or modulation modes pre-configured by the radio network controller, so that the user equipment determines the transmission mode of the uplink packet data according to the control information and then transmits the uplink packet data. The control information may also include fixed redundancy version information pre-configured by the radio network controller, so that the base station combines the received retransmission data and uplink packet data sent by the user equipment according to the control information.

Wherein, the radio network controller may configure relevant control information including transport block size information or modulation mode or redundancy version information according to the obtained UE type information or service information, and notify the user equipment.

In this embodiment, the radio network controller can update (Active Setupdate), cell update confirm (Cell update confirm), physical channel reconfiguration (Physicalchannel reconfiguration), radio bearer reconfiguration (Radio Bearer reconfiguration), radio bearer Release (Radio Bearer release), radio bearer setup (Radio Bearer setup), radio resource control connection setup (RRC connection setup), transport channel reconfiguration (Transportchannel reconfiguration) and other messages carry the control information and send it to the user equipment, but this The examples are not intended to be limiting.

Step 102: The user equipment sends uplink packet data to the base station through a dedicated physical data channel E-DPDCH of an enhanced dedicated channel according to the determined sending mode.

Among them, the transmission of the uplink channel is accompanied by the use of the dedicated physical control channel UL DPCCH to carry the corresponding control information, so as to perform power control and channel estimation, etc., which belongs to the content of the prior art and will not be repeated here.

In this embodiment, since the user equipment has determined the transmission mode according to the control information sent by the RNC, when sending uplink packet data to the base station through the E-DPDCH, it is not necessary to carry the corresponding control information through the E-DPCCH. This mode can be called E-DPCCHless mode. Compared with the situation in the prior art that the uplink packet data is sent through the E-DPDCH and the corresponding control information is sent along with the E-DPCCH channel, the uplink interference is reduced because the control channel transmission is reduced.

The data transmission method of this embodiment can be applied to M2M applications, because there are many categories (Category) in M2M applications, for example, MO Only (only for originating services) means that the UE only performs services initiated by the UE; Low Data Usage ( Low data application) means that the network side has little data interaction with the UE or there will be no interaction between the UE and the network side for a long period of time; Low Mobility (weak mobility) means that the UE rarely moves, such as the UE's location is fixed or nomadic . Therefore, compared with traditional H2H (Human To Human) applications, M2M applications have the following characteristics:

1) The main purpose of the information transmitted between M2M terminals is to realize some automatic control functions without human participation;

2) The number of potential terminals participating in M2M communication is very large, and the interaction traffic of each terminal may be very small, and the interaction may be sudden, which does not require high real-time performance and is suitable for packet transmission;

3) The functions implemented by the M2M terminal are relatively simple, and only need to complete some specific information transmission and interaction;

4) The location of some M2M terminals may be relatively fixed, or rarely move;

5) The M2M terminal behavior under a specific application is consistent. For example, in the electronic meter reading business, all terminals upload data to a specific server at a specific time.

In this embodiment, since the amount of data of the M2M application is relatively fixed and the amount of data is small, the radio network controller (Radio Network Controller, RNC) as the network side can pre-configure several transmission block sizes according to the M2M application Or the modulation mode, as control information, interacts with the user equipment and the base station, so that the base station performs blind detection according to the transmission block pre-configured by the RNC, and the user equipment can no longer indicate E-TFCI information. In addition, the radio network controller can also pre-configure a fixed redundancy version, which is also used as control information to interact with the base station and the user equipment, so that the user equipment no longer needs to indicate RSN information. And because the data volume of the M2M application is small and relatively fixed, and the user equipment can adopt the non-scheduled transmission mode, therefore, the user equipment does not need to use the HAPPY bit to indicate whether it wants to obtain larger transmission resources.

In this embodiment, if the base station feeds back an acknowledgment (ACK) indication according to the received uplink packet data, the user equipment continues to transmit the uplink packet data of the next TTI, and the method is as described in Embodiment 1, and will not be repeated here. . If the base station feeds back a non-acknowledgement (NACK) indication according to the received uplink packet data, the user equipment retransmits the uplink packet data.

According to an implementation of this embodiment, the user equipment may use E-DPDCH to accompany E-DPCCH for data retransmission, please refer to FIG. 2, the method includes:

Step 201: the user equipment receives the non-confirmation indication sent by the base station;

Step 202: According to the non-confirmation indication, the user equipment sends retransmission data to the base station through the dedicated physical data channel of the enhanced dedicated channel, and carries corresponding control information through the dedicated physical control channel of the enhanced dedicated channel.

According to another implementation of this embodiment, the user equipment can use the method shown in Figure 1 to perform data retransmission, that is, to use the E-DPDCH channel to send data without using the E-DPCCH channel to send corresponding control information, please refer to Figure 1 3. The method includes:

Step 301: the user equipment receives the non-confirmation indication sent by the base station;

Step 302: The user equipment sends retransmission data to the base station through the dedicated physical data channel of the enhanced dedicated channel according to the non-confirmation indication and the determined sending mode.

In this embodiment, in order to control the transmission mode of the user equipment to meet the gradually developed network requirements and service requirements, the method of this embodiment can also set the transmission mode of the user equipment on and off through the base station.

Please continue to refer to FIG. 1, when the user equipment is in the process of sending uplink packet data to the base station in step 102, the method further includes the following steps:

Step 103: the user equipment receives a mode switching instruction sent by the base station, and the mode switching instruction is used to instruct the user equipment to switch the transmission mode;

Step 104: According to the mode conversion instruction, the user equipment transmits uplink packet data to the base station only through the dedicated physical data channel of the enhanced dedicated channel, without accompanying the transmission of corresponding control information, and switches to the dedicated physical data channel through the enhanced dedicated channel The uplink packet data is sent to the base station, and the corresponding control information is accompanied by the dedicated physical control channel of the enhanced dedicated channel.

In this way, the user equipment completes the work of mode switching according to the control of the base station, that is, when sending uplink packet data to the base station, the corresponding control information is converted from not accompanying the transmission bearer to accompanying transmission bearer through the dedicated physical control channel of the enhanced dedicated channel. corresponding control information.

Please continue to refer to FIG. 1. According to the method of this embodiment, when the user equipment sends uplink packet data to the base station in step 104, the method further includes the following steps:

Step 105: the user equipment receives a mode switching instruction sent by the base station, and the mode switching instruction is used to instruct the user equipment to switch the transmission mode;

Step 106: According to the mode switching instruction and the determined transmission mode, the user equipment transmits uplink packet data to the base station through the dedicated physical data channel of the enhanced dedicated channel, and carries corresponding control information along with the transmission, and switches to only through the enhanced dedicated channel The dedicated physical data channel of the enhanced dedicated channel sends uplink packet data to the base station, and the corresponding control information is no longer accompanied by the dedicated physical control channel of the enhanced dedicated channel.

In this way, the user equipment completes the mode switching work according to the control of the base station, that is, when sending the uplink packet data to the base station, the uplink packet data is sent to the base station through the dedicated physical data channel of the enhanced dedicated channel, and the corresponding control information is carried along with the transmission. It is converted to only sending uplink packet data to the base station through the dedicated physical data channel of the enhanced dedicated channel, and no longer carries corresponding control information through the dedicated physical control channel of the enhanced dedicated channel.

In this embodiment, the base station can use physical layer signaling, such as HS-SCCH order (High Speed Shared Control Channel order, high-speed shared control channel order), HS-DSCHorder (High Speed Downlink Shared Channel order, high-speed downlink shared channel order) The mode switching instruction is sent to the user equipment, but this embodiment is not limited thereto.

In the data transmission method of the embodiment of the present invention, according to the characteristics of the M2M application, the radio network controller pre-configures the control information, and interacts the control information with the user equipment and the base station, and the user equipment no longer needs to indicate the control information through the E-DPCCH Therefore, the uplink packet data sent by the user equipment to the base station no longer includes the control information in the E-DPCCH, thereby reducing the uplink interference caused by the E-DPCCH control channel and increasing the number of users that the network can support.

Embodiment two

An embodiment of the present invention also provides a data transmission method, which will be described in detail below with reference to the accompanying drawings.

Fig. 4 is the method flowchart of this embodiment, please refer to Fig. 4, the data transmission method of this embodiment includes the following steps:

Step 401: the base station determines the receiving mode of the uplink packet data sent by the user equipment according to the received control information sent by the radio network controller;

In this embodiment, the control information may include the sizes or modulation modes of several transmission blocks pre-configured by the radio network controller, so that the base station determines the receiving mode according to the control information, so that the user equipment only passes through the dedicated physical channel of the enhanced dedicated channel. When the data channel transmits uplink packet data, and does not carry corresponding control information through E-DPCCH, the uplink packet data sent by the user equipment is blindly detected and received. Further, the control information may also include fixed redundancy version information pre-configured by the radio network controller, so that the base station can compare the received retransmission data and the errors received before the retransmission data according to the redundancy version information. Uplink packet data is merged.

In this embodiment, the radio network controller may carry the control information through messages such as radio link setup request (RL setuprequest), radio link addition (RL addition), and radio link reconfiguration (RL reconfiguration) to send to base station, but this embodiment is not limited thereto.

Step 402: The base station performs blind detection and reception on the uplink packet data sent by the user equipment through the dedicated physical data channel of the enhanced dedicated channel according to the receiving mode.

In this embodiment, the user equipment sends uplink packet data to the base station only through the dedicated physical data channel E-DPDCH of the enhanced dedicated channel according to the received control information sent by the radio network controller, without E-DPCCH, that is, The accompanying sending of corresponding control information without using the E-DPCCH channel has been specifically described in Embodiment 1, and will not be repeated here.

In the data transmission method of this embodiment, the base station performs blind detection and reception on the uplink packet data sent by the user equipment according to the control information of the radio network controller. Since the uplink packet data does not carry corresponding control information through the E-DPCCH channel accompanying transmission, Therefore, the uplink interference is reduced, and the number of users that the cell can support increases.

In this embodiment, please continue to refer to FIG. 4, for the received uplink packet data, the method of this embodiment further includes:

Step 403: the base station judges whether the transmission block of the uplink packet data is correct.

In this embodiment, the base station judges whether the transmission block of the uplink packet data is correct or not, and the method of the prior art may be used, which is not limited in this embodiment. If the judgment result of the base station is that the received data sent by the user equipment If the transmission block of the uplink packet data is wrong, execute step 404, otherwise execute step 405;

Step 404: The base station feeds back a non-confirmation indication to the user equipment, and waits for the next transmission of the user equipment;

In this embodiment, if the transport block of the uplink packet data sent by the user equipment is wrong, the base station may discard the received transport block of the uplink packet data sent by the user equipment, and no longer buffer the transport block. However, this embodiment is not limited thereto, and the base station may also retain the erroneous data in the same manner as in the prior art, so as to combine it with the retransmitted data.

Step 405: The base station feeds back an acknowledgment indication to the user equipment, and continues to receive the uplink packet data of the next TTI, which will not be repeated here.

According to an implementation of this embodiment, the transmission of retransmission data needs to be accompanied by E-DPCCH, as shown in the embodiment shown in FIG. While detecting and receiving, the uplink packet data is also received by means of the prior art. If the transmission block of the uplink packet data sent by the user equipment received by the base station is correct, the method of this embodiment further includes:

Step 406: The base station judges whether the uplink packet data is retransmission data according to whether the uplink packet data is accompanied by E-DPCCH and carries corresponding control information;

Step 407: If the uplink packet data is retransmission data, the base station can combine the retransmission data with the previously received erroneous uplink packet data according to the redundancy version information in the control information sent by the RNC, and the specific processing method is the same as The prior art will not be repeated here.

According to another implementation of this embodiment, the retransmission data is not accompanied by the E-DPCCH, that is, the retransmission data is not accompanied by the E-DPCCH to carry the corresponding control information, as shown in the embodiment shown in Figure 3. Therefore, in this In the embodiment, the base station no longer merges with the previously received erroneous uplink packet data, but directly judges whether the retransmitted data is correct or not, and feeds back the correctness indication information to the user equipment, just like the received uplink packet data.

According to the method of this embodiment, in order to control the switch of the transmission mode of the user equipment, the method of this embodiment further includes:

The base station sends a mode switching instruction to the user equipment, where the mode switching instruction is used to instruct the user equipment to send uplink packet data to the base station through the dedicated physical data channel of the enhanced dedicated channel, never accompanied by sending the corresponding control information The transmission mode is converted to a transmission mode that carries corresponding control information along with the dedicated physical control channel of the enhanced dedicated channel; or instructs the user equipment to transmit uplink packet data to the base station through the dedicated physical data channel of the enhanced dedicated channel. The transmission mode in which the dedicated physical control channel of the enhanced dedicated channel carries the corresponding control information is converted into a transmission mode in which the corresponding control information is not accompanied by the transmission.

Wherein, the user equipment performs corresponding processing according to the mode switching instruction sent by the base station, which has been described in detail in Embodiment 1, and will not be repeated here. The base station receives the uplink packet data sent by the user equipment, and determines its blind detection reception mode according to whether the uplink packet data is accompanied by the corresponding control information. For example, if the uplink packet data is accompanied by the corresponding control information, the base station adopts the existing method to receive the uplink packet data; if the uplink packet data does not carry the corresponding control information, the base station adopts the method shown in Figure 4 to perform blind detection and reception on the uplink packet data; if the uplink packet data does not carry the corresponding control information, but the retransmission data carries the corresponding control information, the base station adopts the existing method and the method shown in Figure 4 to perform blind detection and reception on the uplink packet data, which will not be repeated here.

Since the amount of terminal data for M2M applications is very large, and the uplink transmission of a large number of M2M terminals causes an increase in uplink interference and limits the number of users supported by the cell, the data transmission method in this embodiment reduces the transmission of the uplink control channel of each M2M device, The uplink interference is reduced, and the number of users that the cell can support increases.

Embodiment three

An embodiment of the present invention also provides a user equipment, which will be described in detail below with reference to the accompanying drawings.

Figure 5 is a schematic block diagram of the composition of the user equipment in this embodiment, please refer to Figure 5, the user equipment in this embodiment includes:

A determining unit 51, configured to determine a transmission mode of uplink packet data according to received control information sent by the radio network controller, wherein the control information includes a transport block size pre-configured by the radio network controller; or the control The information includes a transport block size and a fixed redundancy version pre-configured by the radio network controller;

The sending unit 52 is configured to send uplink packet data to the base station through the dedicated physical data channel of the enhanced dedicated channel according to the determined sending mode.

According to an implementation manner of this embodiment, the user equipment further includes:

The receiving unit 53 is configured to receive the control information sent by the radio network controller.

According to another implementation manner of this embodiment, the receiving unit 53 is further configured to receive an acknowledgment indication or a non-acknowledgment indication sent by the base station.

According to an implementation of this embodiment, the sending unit 52 is further configured to send a re-transmission to the base station through the dedicated physical data channel of the enhanced dedicated channel according to the non-confirmation indication received by the receiving unit 53 and the determined sending mode. transfer data.

According to another implementation of this embodiment, the sending unit 52 is further configured to send retransmission data to the base station through the dedicated physical data channel of the enhanced dedicated channel according to the non-acknowledgment indication received by the receiving unit 53, and send The dedicated physical control channel of the dedicated channel carries corresponding control information along with the transmission.

According to another implementation of this embodiment, the receiving unit 53 is further configured to receive a mode switching instruction sent by the base station, the mode switching instruction is used to instruct the user equipment to send uplink packet data to the base station through the dedicated physical data channel of the enhanced dedicated channel , from the transmission mode that does not carry the corresponding control information along with the transmission, to the transmission mode that carries the corresponding control information through the dedicated physical control channel of the enhanced dedicated channel; or indicates that the user equipment is transmitting the dedicated physical data through the enhanced dedicated channel When the channel transmits uplink packet data to the base station, it is converted from a transmission mode in which the dedicated physical control channel of the enhanced dedicated channel carries corresponding control information with accompanying transmission to a transmission mode without accompanying transmission with corresponding control information.

Each component unit of the user equipment in this embodiment is respectively used to implement each step of the data transmission method in the foregoing embodiment 1. Since each step of the data transmission method has been described in detail in the first embodiment, it will not be described here. Let me repeat.

The user equipment in the embodiment of the present invention is applied to M2M applications. According to the control information pre-configured by the radio network controller and the blind detection information of the base station, when sending uplink packet data to the base station, the E-DPCCH channel is no longer sent, thereby reducing The uplink interference caused by the E-DPCCH control channel is eliminated, and the number of users that the network can support is increased.

Embodiment four

An embodiment of the present invention further provides a base station, which will be described in detail below with reference to the accompanying drawings.

Figure 6 is a schematic block diagram of the composition of the base station of this embodiment, please refer to Figure 6, the base station of this embodiment includes:

The determining unit 61 is configured to determine the receiving mode of the uplink packet data sent by the user equipment according to the received control information sent by the radio network controller, wherein the control information includes the transport block size pre-configured by the radio network controller ; or the control information includes a transport block size and a fixed redundancy version pre-configured by the radio network controller;

The detection receiving unit 62 is configured to perform blind detection and reception on the uplink packet data sent by the user equipment through the dedicated physical data channel of the enhanced dedicated channel according to the receiving mode determined by the determining unit 61 .

According to an implementation of this embodiment, the base station further includes a first judging unit 63 and a sending unit 64, wherein:

The first judging unit 63 is configured to judge whether the transmission block of the uplink packet data is correct;

The sending unit 64 is configured to send a non-acknowledgment indication to the user equipment when the judgment result of the first judging unit 63 is that the transmission block of the uplink packet data is wrong, and wait for the next transmission of the user equipment. At this time, the base station may or may not discard the erroneous uplink packet data, so as to be combined with the retransmission data.

According to another implementation of this embodiment, the sending unit 64 is further configured to send an acknowledgment indication to the user equipment when the first judging unit 63 judges that the transmission block of the uplink packet data is correct.

According to an implementation manner of this implementation, the base station further includes a second judging unit 65 and a combining unit 66, wherein:

The second judging unit 65 is configured to judge whether the uplink packet data is retransmission data when the judging result of the first judging unit 63 is that the transmission block of the uplink packet data is correct; wherein, the second judging unit 65 Whether the uplink packet data is retransmission data can be judged according to whether the uplink packet data is accompanied by corresponding control information. For example, if the uplink packet data is accompanied by corresponding control information, the base station determines that the uplink packet data is retransmission data .

The merging unit 66 is configured to combine the retransmitted data with the erroneous uplink packet data received before the retransmitted data when the judgment result of the second judging unit 65 is that the uplink packet data is retransmitted data .

According to an implementation of this embodiment, the sending unit 64 is further configured to send a mode switching instruction to the user equipment, instructing the user equipment to never send uplink packet data to the base station through the dedicated physical data channel of the enhanced dedicated channel Accompanying the sending mode of carrying the corresponding control information, converting to the sending mode of carrying the corresponding control information through the dedicated physical control channel of the enhanced dedicated channel; or instructing the user equipment to transmit the corresponding control information through the dedicated physical data channel of the enhanced dedicated channel When the base station transmits uplink packet data, it switches from a transmission mode in which corresponding control information is carried along with the dedicated physical control channel of the enhanced dedicated channel to a transmission mode in which no corresponding control information is carried along with the transmission.

The constituent units of the base station in this embodiment are respectively used to implement the steps of the data transmission method in the second embodiment. Since the steps of the data transmission method have been described in detail in the second embodiment, it is not repeated here repeat.

The base station in the embodiment of the present invention is applied to M2M applications, and performs blind detection according to the control information pre-configured by the radio network controller to receive the uplink packet data sent by the user equipment. Since the uplink packet data no longer includes the E-DPCCH channel, Therefore, the uplink interference caused by the E-DPCCH control channel is reduced, and the number of users that the network can support is increased.

The steps of the methods or algorithms described in connection with the embodiments disclosed herein may be directly implemented by hardware, software modules executed by a processor, or a combination of both. Software modules can be placed in random access memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or any other Any other known storage medium.

The specific embodiments described above have further described the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above descriptions are only specific embodiments of the present invention and are not intended to limit the scope of the present invention. Protection scope, within the spirit and principles of the present invention, any modification, equivalent replacement, improvement, etc., shall be included in the protection scope of the present invention.

Claims (13)

1. A data transmission method, characterized in that the method comprises: Determine the sending mode of the uplink packet data according to the received control information sent by the radio network controller, where the control information includes the transport block size pre-configured by the radio network controller; or, the control information includes the radio Network controller pre-configured transport block size and fixed redundancy version; According to the determined sending mode, send the uplink packet data to the base station through the dedicated physical data channel of the enhanced dedicated channel; receiving a mode switching instruction sent by the base station, where the mode switching instruction is used to instruct the user equipment to never accompany the transmission of the corresponding control information to the base station when sending the uplink packet data to the base station through the dedicated physical data channel of the enhanced dedicated channel; The transmission mode is converted to the transmission mode of sending the corresponding control information to the base station through the dedicated physical control channel of the enhanced dedicated channel, or instructing the user equipment to transmit to the base station through the dedicated physical data channel of the enhanced dedicated channel During uplink packet data, switch from a transmission mode that carries corresponding control information to the base station through the dedicated physical control channel of the enhanced dedicated channel to a transmission mode that does not carry the corresponding control information to the base station. 2. The method according to claim 1, characterized in that, after sending the uplink packet data to the base station through the dedicated physical data channel of the enhanced dedicated channel, further comprising: receiving a non-confirmation indication sent by the base station; Send retransmission data to the base station through the dedicated physical data channel of the enhanced dedicated channel according to the non-acknowledgement indication and the determined sending mode. 3. The method according to claim 1, characterized in that, after sending the uplink packet data to the base station through the dedicated physical data channel of the enhanced dedicated channel, further comprising: receiving a non-confirmation indication sent by the base station; According to the non-acknowledgement indication, send retransmission data to the base station through the dedicated physical data channel of the enhanced dedicated channel, and send accompanying corresponding control information to the base station through the dedicated physical control channel of the enhanced dedicated channel. 4. A data transmission method, characterized in that the method comprises: Determine the receiving mode of the uplink packet data sent by the user equipment according to the control information sent by the radio network controller, where the control information includes the transport block size pre-configured by the radio network controller; or the control information includes the radio Network controller pre-configured transport block size and fixed redundancy version; performing blind detection and reception on the uplink packet data sent by the user equipment through the dedicated physical data channel of the enhanced dedicated channel according to the receiving mode; Sending a mode switching instruction to the user equipment, where the mode switching instruction is used to instruct the user equipment to never send the corresponding control of the bearer to the base station when sending the uplink packet data to the base station through the dedicated physical data channel of the enhanced dedicated channel The sending mode of the information is converted to the sending mode of sending the corresponding control information through the dedicated physical control channel of the enhanced dedicated channel, or instructing the user equipment to send the uplink packet to the base station through the dedicated physical data channel of the enhanced dedicated channel When data is used, switch from a transmission mode that carries corresponding control information through the dedicated physical control channel of the enhanced dedicated channel to a transmission mode that does not carry corresponding control information to the base station; The uplink packet data is received according to the sending mode of the uplink packet data of the user equipment. 5. method according to claim 4, is characterized in that, described method also comprises: judging whether the transmission block of the uplink packet data is correct; If the transmission block of the uplink packet data is wrong, discarding the received wrong transmission block of the uplink packet data, and waiting for the next transmission of the user equipment; If the transmission block of the uplink packet data is correct, send an acknowledgment indication to the user equipment, and wait for the next transmission of the user equipment. 6. The method according to claim 5, wherein if the transmission block of the uplink packet data is correct, the method further comprises: judging whether the uplink packet data is retransmission data, and if so, combining the retransmission data with the erroneous uplink packet data received before the retransmission data according to the fixed redundancy version in the control information . 7. The method according to claim 6, wherein judging whether the uplink packet data is retransmission data comprises: If the user equipment sends retransmission data to the base station through the dedicated physical data channel of the enhanced dedicated channel, and sends corresponding control information to the base station through the dedicated physical control channel of the enhanced dedicated channel, according to the received Whether the uplink packet data is accompanied by corresponding control information of the bearer, and judging whether the uplink packet data is retransmission data: when the received uplink packet data is accompanied by corresponding control information of the bearer, judging that the uplink packet data The data is retransmission data, and when the received uplink packet data is not accompanied by corresponding control information of the bearer, it is determined that the uplink packet data is not retransmission data. 8. A user equipment, characterized in that the user equipment comprises: The determining unit is configured to determine the transmission mode of the uplink packet data according to the control information sent by the radio network controller, where the control information includes the transport block size pre-configured by the radio network controller; or, the control information includes the The radio network controller pre-configured transport block size and fixed redundancy version; A sending unit, configured to send uplink packet data to the base station through the dedicated physical data channel of the enhanced dedicated channel according to the determined sending mode; The receiving unit is configured to receive the control information sent by the radio network controller, and the receiving unit is also configured to receive the mode switching instruction sent by the base station, the mode switching instruction is used to instruct the user equipment to When sending uplink packet data to the base station through the dedicated physical data channel of the enhanced dedicated channel, never send the transmission mode of accompanying the corresponding control information to the base station, and switch to sending the accompanying transmission of the corresponding bearer through the dedicated physical control channel of the enhanced dedicated channel The transmission mode of the control information, or instruct the user equipment to send the corresponding control information from the dedicated physical control channel through the enhanced dedicated channel when sending uplink packet data to the base station through the dedicated physical data channel of the enhanced dedicated channel , switch to a sending mode that does not send accompanying corresponding control information to the base station. 9. The user equipment according to claim 8, characterized in that: The receiving unit is further configured to receive a non-acknowledgment indication sent by the base station. 10. The user equipment according to claim 9, characterized in that: The sending unit is further configured to send retransmission data to the base station through a dedicated physical data channel of the enhanced dedicated channel according to the non-acknowledgement indication and the determined sending mode. 11. The user equipment according to claim 9, characterized in that: The sending unit is further configured to send retransmission data to the base station through the dedicated physical data channel of the enhanced dedicated channel according to the non-acknowledgment indication, and send retransmission data to the base station through the dedicated physical control channel of the enhanced dedicated channel Send bearer corresponding control information. 12. A base station, characterized in that the base station comprises: A determining unit, configured to determine a receiving mode of the uplink packet data sent by the user equipment according to control information sent by the radio network controller, where the control information includes a transport block size pre-configured by the radio network controller; or the The control information includes a transport block size and a fixed redundancy version pre-configured by the radio network controller; A detection and receiving unit, configured to perform blind detection and reception on the uplink packet data sent by the user equipment through the dedicated physical data channel of the enhanced dedicated channel according to the receiving mode determined by the determining unit; a first judging unit, configured to judge whether the transmission block of the uplink packet data is correct; a sending unit, configured to send a non-confirmation indication to the user equipment when the judgment result of the first judging unit is that the transport block of the uplink packet data is wrong; When the transmission block of the uplink packet data is correct, send an acknowledgment indication to the user equipment; and the sending unit is further configured to send a mode switching instruction to the user equipment, and the mode switching instruction is used to instruct the user equipment to When sending uplink packet data to the base station through the dedicated physical data channel of the enhanced dedicated channel, never send the transmission mode of accompanying the corresponding control information to the base station, and switch to sending the accompanying transmission of the corresponding bearer through the dedicated physical control channel of the enhanced dedicated channel The transmission mode of the control information, or instruct the user equipment to send the corresponding control information from the dedicated physical control channel through the enhanced dedicated channel when sending uplink packet data to the base station through the dedicated physical data channel of the enhanced dedicated channel , switch to a sending mode that does not send accompanying corresponding control information to the base station. 13. The base station according to claim 12, further comprising: The second judging unit is used for judging whether the uplink packet data is carried according to whether the uplink packet data is accompanied by corresponding control information when the judgment result of the first judging unit is that the transmission block of the uplink packet data is correct. Retransmission data: when the uplink packet data is accompanied by corresponding control information of the bearer, determine that the uplink packet data is retransmission data; when the uplink packet data is not accompanied by the corresponding control information of the bearer, determine that the uplink packet data not to retransmit data; The merging unit is configured to combine the retransmitted data with erroneous uplink packet data received before the retransmitted data when the judgment result of the second judging unit is that the uplink packet data is retransmitted data.

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