WO2019134512A1

WO2019134512A1 - Data transmission method, apparatus, and device, and computer readable storage medium

Info

Publication number: WO2019134512A1
Application number: PCT/CN2018/122001
Authority: WO
Inventors: 缪德山; 高秋彬
Original assignee: 电信科学技术研究院有限公司
Priority date: 2018-01-08
Filing date: 2018-12-19
Publication date: 2019-07-11
Also published as: CN110022615B; CN110022615A

Abstract

The present application provides a data transmission method, apparatus, and device, and a computer readable storage medium. The data transmission method in the present application comprises: determining, when determining that a user equipment (UE) transmits data packets on multiple transmission/reception points (TRPs), redundancy version (RV) information used for current data transmission; determining scheduling control information corresponding to the multiple TRPs; indicating transmission block indication information and the RV information to the UE, the transmission block indication information being used for indicating whether the data packets of the multiple TRPs correspond to the same transport block (TB); and transmitting the data packets of the multiple TRPs to the UE according to the scheduling control information.

Description

Data transmission method, device, device and computer readable storage medium

Cross-reference to related applications

The present application claims priority to Chinese Patent Application No. 201810014887.8, filed on Jan. 8, 2008, the entire disclosure of which is hereby incorporated by reference.

Technical field

The present disclosure relates to the field of communications technologies, and in particular, to a data transmission method, apparatus, device, and computer readable storage medium.

Background technique

In the 5G New Radio (NR) system, in order to improve the peak rate and system coverage of the user equipment (User Equipment, UE), multiple transmission reference points (TRPs) may be used for data transmission. In order to improve the reliability of downlink transmission, multiple TRPs can transmit the same data signal for diversity transmission. In the case of Ultra-Reliable and Low-Latency Communications (URLLC), the reliability and delay of data need to be met as much as possible. Therefore, the combination of URLLC and multi-TRP transmission is an important research topic. .

Both Long Term Evolution (LTE) and NR technologies support multi-TRP transmission, but the multi-TRP transmission method in the related art still has problems of poor data reliability and large delay.

Summary of the invention

In a first aspect, an embodiment of the present disclosure provides a data transmission method, which is applied to a network side device, and includes:

Determining redundancy version RV information for current data transmission when determining that the user equipment UE transmits a data packet on a plurality of transmission reception points TRP;

Determining scheduling control information corresponding to multiple TRPs;

Transmitting, to the UE, transport block indication information and the RV information, where the transport block indication information is used to indicate whether the data packets of the multiple TRPs correspond to the same transport block TB;

Transmitting, by the scheduling control information, the data packets of the multiple TRPs to the UE.

The determining the redundancy version RV information for the current data transmission includes:

The RV information for the current data transmission is determined according to a preset RV cyclic transmission mechanism.

The determining, according to the preset RV cyclic transmission mechanism, determining RV information for current data transmission, including:

When the number of TRPs in the plurality of TRPs is less than or equal to the number of RVs in the RV version set, sequentially selecting different RV indexes RV indexes for the plurality of TRPs in a predefined RV version set; When the number of TRPs in the plurality of TRPs is greater than the number of RVs in the RV version set, using a method of recycling, starting from the Nth TRP of the plurality of TRPs, from the first of the RV version sets Starting with the RV index, reselecting in the RV version set; wherein N=the number of RVs in the RV version set is +1;

When retransmitting, the RV index used by the multiple TRPs in each transmission is different from the RV index used in the previous transmission; if the RV index in the RV version set is all used for transmission, the loop is adopted. Using the method, reselection begins with the first RV index in the set of RV versions.

The determining the scheduling control information corresponding to the multiple TRPs includes:

Using one physical downlink control channel PDCCH as the scheduling control information of the multiple TRPs, to schedule the same data packet to be transmitted on the multiple TRPs; the PDCCH indicates that the same data packet transmits the same on different TRPs. Or different resources;

Alternatively, the plurality of PDCCHs are respectively used as scheduling control information of the plurality of TRPs, and the same data packet is scheduled to be transmitted on the plurality of TRPs.

When the physical downlink control channel PDCCH is used as the scheduling control information of the multiple TRPs, when the same data packet is scheduled to be transmitted on the multiple TRPs, the indication of the transporting block indication information is indicated to the UE, including:

Indicating the transport block indication information to the UE by using downlink control information DCI signaling; or

Decoding the PDCCH with the first radio network temporary identifier RNTI to indicate the transport block indication information to the UE; or

The RRC signaling is used to send the working mode indication information to the UE, where the working mode indication information is used to indicate that the UE works in the preset working mode to indicate the transport block indication information.

When the physical downlink control channel PDCCH is used as the scheduling control information of the multiple TRPs, when the same data packet is scheduled to be transmitted on the multiple TRPs, the RV information is indicated to the UE, including:

And setting an RV index RV index for the TRP data corresponding to the DMRS port group according to a mapping relationship between the TRP and the demodulation reference signal port group DMRS port group, and indicating the RV index to the UE by using DCI signaling.

The RV index RV index is set for the TRP data corresponding to the DMRS port group, and includes:

When the number of the DMRS port groups is less than or equal to the number of RVs in the RV version set, different RV indexes RV indexes are sequentially selected in a preset RV version set; when the number of the DMRS port groups is greater than the number When the number of RVs in the RV version set is cyclic, starting from the Mth DMRS port group in the DMRS port group, starting from the first RV index in the RV version set, at the RV Re-selection in the version set; wherein the number of RVs in the M=RV version set is +1;

In retransmission, the RV index used by the DMRS port group is different from the RV index used in the previous transmission; if the RV index in the RV version set is all used for transmission, the loop is adopted. Using the method, reselection begins with the first RV index in the set of RV versions.

When the multiple PDCCHs are used as the scheduling control information of the multiple TRPs, and the same data packet is scheduled to be transmitted on the multiple TRPs, the indicating the transport block indication information and the RV information, including:

The working mode indication information is sent by using one of the information fields of the RRC signaling or the second RNTI or the DCI signaling, where the working mode indication information is used to indicate that the UE works in a preset working mode to indicate the transport block to the UE. Indication information;

The RV information is indicated to the UE by using a PDCCH.

In a second aspect, an embodiment of the present disclosure provides a data transmission method, which is applied to a UE, and includes:

Receiving data packets sent by the network side device from multiple TRPs;

Receiving, by the network side device, the transport block indication information and the RV information, where the transport block indication information is used to indicate whether the data packet sent by the multiple TRPs corresponds to the same transport block TB;

And determining, according to the transport block indication information, that the data packets sent by the multiple TRPs correspond to the same TB, combining the data packets sent by the multiple TRPs according to the RV information.

The receiving the transport block indication information and the RV information sent by the network side device, including:

Receiving the DCI signaling sent by the network side device, where the DCI signaling is used to indicate the transporting block indication information; or receiving the first RNTI sent by the network side device to obtain the transporting block indication information; or And receiving the working mode indication information that is sent by the network side device by using the RRC signaling, where the working mode indication information is used to indicate that the UE works in a preset working mode, to obtain the transport block indication information;

Receiving DCI signaling sent by the network side device to obtain the RV information.

Receiving the working mode indication information that is sent by the network side device by using the RRC signaling or the second RNTI or using one of the information fields of the DCI signaling, where the working mode indication information is used to indicate that the UE works in a preset working mode, Obtaining transport block indication information;

The RV information is acquired through a PDCCH.

If the working mode indication information that is sent by the network side device by using the RRC signaling is received, when determining that the data packets sent by the multiple TRPs correspond to the same TB according to the transport block indication information, The RV information combines the data packets sent by the multiple TRPs, including:

Monitoring a plurality of different PDCCHs and detecting the PDSCH, and combining the data packets of the multiple TRPs in combination with the RV information when receiving a plurality of different PDSCHs.

If the working mode indication information sent by the network side device by using the second RNTI is received, when determining that the data packets sent by the multiple TRPs correspond to the same TB according to the transport block indication information, The RV information combines the data packets sent by the multiple TRPs, including:

Determining whether the second RNTI is a RNTI dedicated to the high reliability communication mode, and determining the data packet sent from the multiple TRPs in combination with the RV information when determining that the second RNTI is a RNTI dedicated to the high reliability communication mode Consolidate.

In a third aspect, an embodiment of the present disclosure provides a communication device, including: a transceiver, a memory, a processor, and a computer program stored on the memory and operable on the processor;

The processor is configured to read a program in the memory and perform the following process:

Determining, when the user equipment UE transmits the data packet on the multiple transmission and reception points TRP, the redundancy version RV information used for the current data transmission; determining the scheduling control information corresponding to the multiple TRPs; indicating the transmission block indication information to the UE And the RV information, the transport block indication information is used to indicate whether the data packets of the multiple TRPs correspond to the same transport block TB;

The transceiver is configured to send, by using the scheduling control information, the data packet of the multiple TRPs to the UE.

The processor is further configured to read a program in the memory and perform the following process:

The RV information is indicated to the UE by using a PDCCH.

In a fourth aspect, an embodiment of the present disclosure provides a communication device, including: a transceiver, a memory, a processor, and a computer program stored on the memory and operable on the processor;

The transceiver is configured to receive a data packet sent by the network side device from multiple TRPs, and receive the transport block indication information and the RV information sent by the network side device, where the transport block indication information is used to indicate the multiple Whether the data packet sent by the TRP corresponds to the same transport block TB;

The transceiver is configured to receive DCI signaling sent by the network side device, where the DCI signaling is used to indicate the transport block indication information, or receive the first RNTI sent by the network side device, Obtaining the transport block indication information; or receiving the working mode indication information that is sent by the network side device by using the RRC signaling, where the working mode indication information is used to indicate that the UE works in a preset working mode, to obtain the transport block. Instructing information; receiving DCI signaling sent by the network side device to obtain the RV information.

The transceiver is configured to receive DCI signaling sent by the network side device, and receive a working mode indication that is sent by the network side device by using RRC signaling or a second RNTI or by using one of the DCI signaling fields. Information, the working mode indication information is used to indicate that the UE works in a preset working mode to obtain the transport block indication information;

The RV information is acquired through a PDCCH.

In a fifth aspect, an embodiment of the present disclosure provides a data transmission apparatus, including:

a determining module, configured to determine redundancy version RV information for current data transmission when determining that the user equipment UE transmits a data packet on multiple transmission receiving points TRP;

a processing module, configured to determine scheduling control information corresponding to multiple TRPs;

The indication module is configured to indicate to the UE, the transport block indication information and the RV information, where the transport block indication information is used to indicate whether the data packets of the multiple TRPs correspond to the same transport block TB;

And a sending module, configured to send, by using the scheduling control information, the data packet of the multiple TRPs to the UE.

Wherein, the processing module is used to:

In a sixth aspect, an embodiment of the present disclosure provides a data transmission apparatus, including:

a first receiving module, configured to receive a data packet sent by the network side device from multiple TRPs;

a second receiving module, configured to receive the transport block indication information and the RV information sent by the network side device, where the transport block indication information is used to indicate whether the data packets sent by the multiple TRPs correspond to the same transport block TB;

And a processing module, configured to, when determining, according to the transport block indication information, that the data packets sent by the multiple TRPs correspond to the same TB, combine the data packets sent by the multiple TRPs according to the RV information.

The second receiving module includes:

a first receiving submodule, configured to receive DCI signaling sent by the network side device, where the DCI signaling is used to indicate the transporting block indication information; or receive the first RNTI sent by the network side device to obtain The transporting block indicates information; or receiving the working mode indication information that is sent by the network side device by using the RRC signaling, where the working mode indication information is used to indicate that the UE works in a preset working mode, to obtain the transport block indication. information;

The second receiving submodule is configured to receive DCI signaling sent by the network side device to obtain the RV information.

The second receiving module includes:

a third receiving submodule, configured to receive the working mode indication information that is sent by the network side device by using the RRC signaling or the second RNTI or using one of the information fields in the DCI signaling, where the working mode indication information is used to indicate that the UE works. In the preset working mode, to obtain the transport block indication information;

Obtaining a submodule, configured to acquire the RV information by using a PDCCH.

a seventh aspect, an embodiment of the present disclosure provides a computer readable storage medium for storing a computer program, the computer program being executed by a processor to implement the steps in the method according to the first aspect; or the computer The steps in the method as described in the second aspect are implemented when the program is executed by the processor.

DRAWINGS

1 is a flowchart of a data transmission method according to an embodiment of the present disclosure;

2 is a flowchart of a data transmission method according to an embodiment of the present disclosure;

3 is a schematic diagram of a communication device according to an embodiment of the present disclosure;

4 is a schematic diagram of a communication device according to an embodiment of the present disclosure;

FIG. 5 is a schematic diagram of a data transmission apparatus according to an embodiment of the present disclosure; FIG.

FIG. 6 is a schematic diagram of a data transmission apparatus according to an embodiment of the present disclosure.

Detailed ways

Specific embodiments of the present disclosure will be further described in detail below with reference to the drawings and embodiments. The following examples are intended to illustrate the disclosure, but are not intended to limit the scope of the disclosure.

As shown in FIG. 1 , the data transmission method of the embodiment of the present disclosure is applied to a network side device, and includes:

Step 101: When it is determined that the user equipment (User Equipment, UE) transmits the data packet on multiple Transmission Reception Point (TRP), determine Redundancy Version (RV) information for the current data transmission.

The TRP can refer to a network transmission point, and can correspond to a base station or an antenna transmitting and receiving unit. In an embodiment of the present disclosure, the data packet transmitted by the multiple TRPs may be a URLLC data packet.

In the disclosed embodiment, the RV information for the current data transmission is determined according to a preset RV cyclic transmission mechanism.

Specifically, when the number of TRPs in the multiple TRPs is less than or equal to the number of RVs in the RV version set, different RV indexes, that is, RVs, are sequentially selected in the preset RV version set for the multiple TRPs. Index. The RV version set may be [0, 1, 2, 3]. When the number of TRPs in the plurality of TRPs is greater than the number of RVs in the RV version set, using a method of recycling, starting from an Nth TRP of the plurality of TRPs, from the set of RV versions The first RV index begins, and is reselected sequentially in the RV version set; wherein N = the number of RVs in the RV version set is +1.

For example, when two TRPs perform data transmission, in order to improve reliability, the first transmission uses RV {0, 1} in the RV version set [0, 1, 2, 3] corresponding to TRP0 and TRP1; The RV {2, 3} in the RV version set [0, 1, 2, 3] for the secondary transmission corresponds to TR0 and TRP1, respectively.

Step 102: Determine scheduling control information corresponding to multiple TRPs.

In the embodiment of the present disclosure, a physical downlink control channel (PDCCH) may be used as scheduling control information of the multiple TRPs to schedule the same data packet to be transmitted on the multiple TRPs; The PDCCH indicates that the same data packet is transmitted on different TRPs occupying the same or different resources.

After determining the corresponding scheduling control information, data scheduling and resource mapping may be performed on the data packets of the multiple TRPs.

Step 103: Instruct the UE to indicate the transport block indication information and the RV information, where the transport block indication information is used to indicate whether the data packets of the multiple TRPs correspond to the same transport block TB. When indicating that the transmitted packets are the same, it means that multiple packets need to be merged to provide diversity gain. The data packets mentioned here correspond to the data streams of different TRP transmissions.

When the physical downlink control channel PDCCH is used as the scheduling control information of the multiple TRPs to schedule the same data packet to be transmitted on the multiple TRPs, in this step, the UE is instructed to indicate the transport block indication in the following manner. information:

Determining, by using Downlink Control Information (DCI) signaling, the transport block indication information to the UE; or

The PDCCH is scrambled by using a first Radio Network Temporary Identity (RNTI) to indicate the transport block indication information to the UE; or

The working mode indication information is sent to the UE by using Radio Resource Control (RRC) signaling, where the working mode indication information is used to indicate that the UE works in a preset working mode, in which the TRP is transmitted from multiple TRPs. The data stream should correspond to the same data block to facilitate data merging, so the mode indication information implicitly indicates the transport block indication information to the UE. The preset working mode may be a highly reliable communication mode, for example, may be a URLLC mode.

In the above cases, when the RV information is indicated to the UE, the mapping relationship between the TRP and the Demodulation Reference Signal (DMRS) port group is corresponding to the DMRS port group. The TRP data sets an RV index RV index and indicates the RV index to the UE using DCI signaling.

Specifically, when the number of the DMRS port groups is less than or equal to the number of RVs in the RV version set, different RV indexes are sequentially selected in a preset RV version set, such as [0, 1, 2, 3] RV index. When the number of the DMRS port groups is greater than the number of RVs in the RV version set, using a method of recycling, starting from the Mth DMRS port group in the DMRS port group, from the RV version set The first RV index begins, and is reselected in turn in the RV version set; wherein M = RV number in the RV version set is +1. In retransmission, the RV index used by the DMRS port group is different from the RV index used in the previous transmission; if the RV index in the RV version set is all used for transmission, the loop is adopted. Using the method, reselection begins with the first RV index in the set of RV versions.

When the plurality of PDCCHs are respectively used as the scheduling control information of the multiple TRPs, when the same data packet is scheduled to be transmitted on the multiple TRPs, the RRC signaling or the second RNTI or the DCI signaling may be utilized. An information field sends working mode indication information, where the working mode indication information is used to indicate that the UE works in a preset working mode to indicate the transmission block indication information to the UE, and uses the PDCCH to indicate the RV information to the UE. The preset working mode may be a highly reliable communication mode, for example, may be a URLLC mode.

Step 104: Send, by using the scheduling control information, the data packet of the multiple TRPs to the UE.

In the embodiment of the present disclosure, when the UE transmits a data packet on multiple TRPs, the network side device determines the RV version information, and determines scheduling control information corresponding to the multiple TRPs. Then, the UE indicates the transport block indication information and the RV information, and uses the scheduling control information to send the data packets of the multiple TRPs to the UE. Therefore, after receiving the data packets of the multiple TRPs, the UE may determine, according to the transport block indication information, the data packets sent by the multiple TRPs according to the transport block indication information, after receiving the data packets of the multiple TRPs. When the same TB is used, the data packets sent by the multiple TRPs are merged. Therefore, the solution of the embodiments of the present disclosure can improve data reliability and reduce latency.

As shown in FIG. 2, the data transmission method of the embodiment of the present disclosure is applied to a UE, including:

Step 201: Receive a data packet sent by the network side device from multiple TRPs.

Step 202: Receive transport block indication information and RV information sent by the network side device, where the transport block indication information is used to indicate whether the data packets sent by the multiple TRPs correspond to the same transport block TB.

Corresponding to different transmission modes of the network side device, in this step, the UE may receive DCI signaling sent by the network side device, where the DCI signaling is used to indicate the transport block indication information; or receive the network side The first RNTI sent by the device to obtain the transport block indication information; or the working mode indication information that is sent by the network side device by using the RRC signaling, where the working mode indication information is used to indicate that the UE works in a preset working mode. And acquiring the transport block indication information, and receiving the DCI signaling sent by the network side device to obtain the RV information.

Alternatively, the UE may receive the working mode indication information that is sent by the network side device by using the RRC signaling or the second RNTI or by using one of the DCI signaling, where the working mode indication information is used to indicate that the UE works in the preset work. In the mode, to obtain the transport block indication information, the RV information is acquired through the PDCCH.

The preset working mode may be a highly reliable communication mode, for example, may be a URLLC mode.

Step 203: When it is determined that the data packets sent by the multiple TRPs correspond to the same TB according to the transport block indication information, combine the data packets sent by the multiple TRPs according to the RV information.

In this step, if receiving the working mode indication information sent by the network side device by using the RRC signaling, the UE monitors multiple different PDCCHs and detects the PDSCH, and when receiving multiple different PDSCHs, the combination The RV information combines the data packets of the multiple TRPs.

If the working mode indication information sent by the network side device by using the second RNTI is received, the UE determines whether the second RNTI is a RNTI dedicated to the high reliability communication mode, and determines that the second RNTI is dedicated to the high reliability communication mode. In the RNTI, the data packets sent from the multiple TRPs are combined in combination with the RV information.

In the embodiment of the present disclosure, when the network side device determines that one UE transmits a URLLC data packet in multiple TRPs, data signals of a plurality of different redundancy versions RV may be acquired. PDSCH resource scheduling is performed on multiple TRPs by using one or more PDCCHs. For example, one PDSCH multi-stream (multi-layer) may be used for data bearer, or multiple independent PDSCHs may be used for data bearer. Then, the data packets to be transmitted by the multiple TRPs are resource mapped and transmitted, and the UE is notified whether the data flows transmitted by the multiple TRPs correspond to the same TB. After receiving the data signals of multiple TRPs, the UE performs data demodulation and performs RV version merging on the data packets from the same TB.

Hereinafter, the specific implementation process disclosed will be described in detail in conjunction with the two embodiments.

In the data transmission method of the embodiment of the present disclosure, a multi-stream transmission in which one PDSCH is scheduled from different TRPs is described by taking one PDCCH as an example.

Multiple streams are transmitted on one PDSCH and can be scheduled with one PDCCH. However, in order to avoid data interference, different resource allocations are used, which requires multiple resource allocation indications. Each data stream corresponds to one TRP for data transmission. In the embodiment of the present disclosure, in order to reduce the resource indication overhead, the following signaling optimization method may be adopted:

The first data stream uses continuous resource allocation, the resource allocation of the second data stream is separated from the first by only one offset (offset), and the third and second are also separated by an offset, indicating only the extra in the PDCCH. Offset.

Since multiple data streams are different RVs of the same data packet, it is necessary to explicitly indicate in the PDCCH that different TRP data streams correspond to the same transport block TB. A specific method may be to add a flag flag signal to the PDCCH. When the identifier indicates 0, it indicates that different data streams correspond to different TBs, and no data combination is needed. When the identifier indicates 1, it indicates that a different TRP data stream is from the same TB, and data merge is required.

Optionally, an independent RNTI may be configured for the URLLC. When working in this mode, the combination of multiple TRPs corresponding to the RV may be implicitly indicated by the RNTI.

At the same time, since a TRP usually corresponds to a separate DMRS port group, an association relationship needs to be established. When the indication of the foregoing flag is 1, the data streams of different TRP transmissions correspond to the same TB, and one RV index indication domain is configured corresponding to one DMRS port group. Such different TRPs can be configured with the same or different RVs. In order to improve the channel decoding effect, different transmission opportunities can configure the cyclic distribution of the RV to improve the convergence speed of retransmission or multiple transmissions.

In the data transmission method of the embodiment of the present disclosure, the scheduling is performed by using multiple PDSCHs independently as an example.

Since multiple RV versions are transmitted on multiple PDSCHs, multiple PDCCHs need to be scheduled. However, in order to avoid data mutual interference, different resource allocations are usually adopted, and different PDCCHs can independently allocate resources. In order to improve the reliability of the PDCCH, each PDCCH may adopt orthogonal resource allocation while adopting a higher CCE aggregation level.

If the data flows of multiple TRP transmissions are different RVs of the same data packet, when multiple PDCCHs schedule multiple PDSCHs from different TRPs, the RRC configuration may be used or the dedicated RNTI may be used to notify the UE to work in the URLLC mode at this time, and receive Multiple PDSCHs correspond to the same TB and combine RVs of different PDSCHs.

When the RRC configuration indication, the UE knows that it works in the URLCC mode and may have multiple different PDCCH schedulings. Therefore, the UE monitors multiple different PDCCHs and detects the PDSCH. If multiple different PDSCHs are received, the data is merged. When a dedicated RNTI indication is used, the UE needs to detect the RNTI to distinguish whether multiple different PDSCHs need to be merged. If it is a URLLC-dedicated RNTI, the data is merged. If it is another RNTI, data fusion is not required, and each PDSCH is independently performed. Data detection.

As can be seen from the above description, the solution of the embodiments of the present disclosure can effectively improve data transmission reliability and reduce reception delay.

As shown in FIG. 3, the communication device of the embodiment of the present disclosure includes a processor 300 for reading a program in the memory 320 and performing the following process:

The processor 300 is configured to read a program in the memory 320, and execute the following process: using the scheduling control information by the transceiver 310 to send the data packet of the multiple TRPs to the UE; when determining that the user equipment UE is in multiple Determining redundancy version RV information for current data transmission when transmitting a data packet on the transmission receiving point TRP; determining scheduling control information corresponding to the plurality of TRPs; indicating transmission block indication information and the RV information to the UE, The transport block indication information is used to indicate whether the data packets of the multiple TRPs correspond to the same transport block TB;

The transceiver 310 is configured to receive and transmit data under the control of the processor 300. Specifically, the data packet of the multiple TRPs is sent to the UE by using the scheduling control information.

Here, in FIG. 3, the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 300 and various circuits of memory represented by memory 320. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. Transceiver 310 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium. The processor 300 is responsible for managing the bus architecture and general processing, and the memory 320 can store data used by the processor 300 in performing operations.

The processor 300 is responsible for managing the bus architecture and general processing, and the memory 320 can store data used by the processor 300 in performing operations.

The processor 300 is further configured to read the computer program, and perform the following steps:

When the number of TRPs in the plurality of TRPs is less than or equal to the number of RVs in the RV version set, sequentially selecting different RV indexes RV indexes for the plurality of TRPs in a predefined RV version set; When the number of TRPs in the plurality of TRPs is greater than the number of RVs in the RV version set, using a method of recycling, starting from the Nth TRP of the plurality of TRPs, from the first of the RV version sets The RV index starts, and is reselected sequentially in the RV version set; wherein N=the number of RVs in the RV version set is +1; when retransmitting, the RV index and the former used by the multiple TRPs in each transmission The RV index used by the secondary transmission is different; if the RV index in the RV version set is all used for transmission, the cyclical method is used to reselect from the first RV index in the RV version set.

The RV information is indicated to the UE by using a PDCCH.

As shown in FIG. 4, a communication device according to an embodiment of the present disclosure includes a processor 400 for reading a program in the memory 420 and performing the following process:

The processor 400 is configured to read a program in the memory 420 and perform the following process:

Receiving, by the transceiver 410, the data packet sent by the network side device from the plurality of TRPs; receiving the transport block indication information and the RV information sent by the network side device, where the transport block indication information is used to indicate the sending of the multiple TRPs Whether the data packet corresponds to the same transport block TB; when it is determined according to the transport block indication information that the data packets sent by the multiple TRPs correspond to the same TB, the data sent by the multiple TRPs in combination with the RV information The package is merged.

The transceiver 410 is configured to receive and transmit data under the control of the processor 400. Specifically, it is configured to receive a data packet sent by the network side device from multiple TRPs, and receive the transport block indication information and the RV information sent by the network side device, where the transport block indication information is used to indicate the multiple TRP transmissions. Whether the data packet corresponds to the same transport block TB.

Wherein, in FIG. 4, the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 400 and various circuits of memory represented by memory 420. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. Transceiver 410 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium. For different user equipments, the user interface 430 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

The processor 400 is responsible for managing the bus architecture and general processing, and the memory 420 can store data used by the processor 400 when performing operations.

The transceiver 410 is configured to receive the DCI signaling sent by the network side device, where the DCI signaling is used to indicate the transport block indication information, or receive the first RNTI sent by the network side device to obtain The transporting block indicates information; or receiving the working mode indication information that is sent by the network side device by using the RRC signaling, where the working mode indication information is used to indicate that the UE works in a preset working mode, to obtain the transport block indication. And receiving the DCI signaling sent by the network side device to obtain the RV information.

The transceiver 410 is configured to receive the DCI signaling sent by the network side device, and receive the working mode indication information that is sent by the network side device by using the RRC signaling or the second RNTI or by using one of the DCI signaling fields. The working mode indication information is used to indicate that the UE works in a preset working mode to obtain the transport block indication information.

The processor 400 is further configured to read the computer program and perform the following steps:

The RV information is acquired through a PDCCH.

As shown in FIG. 5, the data transmission apparatus of the embodiment of the present disclosure includes:

The determining module 501 is configured to determine, when the user equipment UE transmits the data packet on the multiple transmission and reception points TRP, the redundancy version RV information used for the current data transmission, and the processing module 502, configured to determine the scheduling of the multiple TRPs Control information; an indication module 503, configured to indicate, to the UE, transport block indication information and the RV information, where the transport block indication information is used to indicate whether the data packets of the multiple TRPs correspond to the same transport block TB; The sending module 504 is configured to send, by using the scheduling control information, the data packet of the multiple TRPs to the UE.

The determining module 501 is specifically configured to determine RV information for current data transmission according to a preset RV cyclic transmission mechanism. Specifically, when the number of TRPs in the plurality of TRPs is less than or equal to the number of RVs in the set of RV versions, sequentially selecting different RV indexes RV indexes for the plurality of TRPs in a preset RV version set; When the number of TRPs in the plurality of TRPs is greater than the number of RVs in the RV version set, using a method of recycling, starting from an Nth TRP of the plurality of TRPs, from the set of RV versions The first RV index starts, and is reselected sequentially in the RV version set; wherein N=the number of RVs in the RV version set is +1; when retransmitting, the RV used by the multiple TRPs in each transmission The index is different from the RV index used in the previous transmission; if the RV index in the RV version set is all used for transmission, the recurring method is used to reselect from the first RV index in the RV version set. .

The processing module 502 is configured to:

When the physical downlink control channel PDCCH is used as the scheduling control information of the multiple TRPs, when the same data packet is scheduled to be transmitted on the multiple TRPs, the indication module 503 is configured to use the downlink control information DCI letter. Determining, to the UE, the transport block indication information; or scrambling the PDCCH by using a first radio network temporary identifier RNTI to indicate the transport block indication information to the UE; or using radio resource control RRC signaling to The UE sends the working mode indication information, where the working mode indication information is used to indicate that the UE works in the preset working mode to indicate the transport block indication information. And the indication module 503 is configured to set an RV index RV index for the TRP data corresponding to the DMRS port group according to the mapping relationship between the TRP and the demodulation reference signal port group DMRS port group, and indicate the indication to the UE by using DCI signaling. Said RV index.

When the RV index RV index is set for the TRP data corresponding to the DMRS port group, when the number of the DMRS port groups is less than or equal to the number of RVs in the RV version set, in a preset RV version set, such as [0] , 1, 2, 3] sequentially select different RV indexes RV index; when the number of the DMRS port groups is greater than the number of RVs in the RV version set, a method of recycling is used, from the DMRS port group The Mth DMRS port group starts from the first RV index in the RV version set, and is reselected in the RV version set in sequence; wherein the number of RVs in the M=RV version set is +1; At the time of transmission, the RV index used by the DMRS port group is different from the RV index used in the previous transmission; if the RV index in the RV version set is all used for transmission, the cyclic usage method is adopted. Reselecting from the first RV index in the RV version set.

When the PDCCH is used as the scheduling control information of the multiple TRPs, and the same data packet is scheduled to be transmitted on the multiple TRPs, the indication module 503 is configured to use the RRC signaling or the second RNTI. Or transmitting, by using an information field in the DCI signaling, the working mode indication information, where the working mode indication information is used to indicate that the UE works in a preset working mode, to indicate to the UE, the transport block indication information; The UE indicates RV information.

The working principle of the apparatus of the embodiment of the present disclosure may refer to the description of the foregoing method embodiment, and the apparatus may be located in the network side device.

As shown in FIG. 6, the data transmission apparatus of the embodiment of the present disclosure includes:

The first receiving module 601 is configured to receive a data packet sent by the network side device from multiple TRPs;

The second receiving module 602 is configured to receive the transport block indication information and the RV information that are sent by the network side device, where the transport block indication information is used to indicate whether the data packet sent by the multiple TRPs corresponds to the same transport block TB. ;

The processing module 603 is configured to, when determining, according to the transport block indication information, that the data packets sent by the multiple TRPs correspond to the same TB, combine the data packets sent by the multiple TRPs according to the RV information.

The second receiving module 602 may include: a first receiving submodule, configured to receive DCI signaling sent by the network side device, where the DCI signaling is used to indicate the transporting block indication information; or Decoding the first RNTI sent by the network side device to obtain the transport block indication information; or receiving the working mode indication information sent by the network side device by using the RRC signaling, where the working mode indication information is used to indicate that the UE works in the pre The working mode is configured to obtain the transport block indication information, and the second receiving submodule is configured to receive the DCI signaling sent by the network side device to obtain the RV information.

Alternatively, the second receiving module 602 may include: a third receiving submodule, configured to receive the working mode indication information that is sent by the network side device by using RRC signaling or a second RNTI or by using one of the DCI signaling fields. The working mode indication information is used to indicate that the UE works in the preset working mode to obtain the transport block indication information, and the acquiring submodule is configured to acquire the RV information by using the PDCCH.

The processing module 603 is configured to monitor multiple different PDCCHs and detect the PDSCH, and receive multiple different PDSCHs, if the working mode indication information that is sent by the network side device by using the RRC signaling is received, The data packets of the plurality of TRPs are combined in combination with the RV information.

The processing module 603 is configured to determine whether the second RNTI is a RNTI dedicated to the high reliability communication mode, and determine the second, if the working mode indication information sent by the network side device by using the second RNTI is received. When the RNTI is an RNTI dedicated to a highly reliable communication mode, the data packets transmitted from the plurality of TRPs are combined in combination with the RV information.

The working principle of the apparatus of the embodiments of the present disclosure may refer to the description of the foregoing method embodiments, and the apparatus may be located in the UE.

Furthermore, a computer readable storage medium of an embodiment of the present disclosure is configured to store a computer program executable by a processor to implement the following steps:

Determining scheduling control information corresponding to multiple TRPs;

The RV information is indicated to the UE by using a PDCCH.

Receiving data packets sent by the network side device from multiple TRPs;

The RV information is acquired through a PDCCH.

In the several embodiments provided in the present application, it should be understood that the disclosed method and apparatus may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

In addition, each functional unit in various embodiments of the present disclosure may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

The above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium. The above software functional unit is stored in a storage medium and includes a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform part of the steps of the transceiving method of the various embodiments of the present disclosure. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

The above is an alternative embodiment of the present disclosure, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present disclosure. It should also be considered as the scope of protection of the present disclosure.

Claims

A data transmission method is applied to a network side device, including:

Determining redundancy version RV information for current data transmission when determining that the user equipment UE transmits a data packet on a plurality of transmission reception points TRP;

Determining scheduling control information corresponding to multiple TRPs;

Transmitting, to the UE, transport block indication information and the RV information, where the transport block indication information is used to indicate whether the data packets of the multiple TRPs correspond to the same transport block TB;

Transmitting, by the scheduling control information, the data packets of the multiple TRPs to the UE.
The method of claim 1 wherein said determining redundant version RV information for current data transmission comprises:

The RV information for the current data transmission is determined according to a preset RV cyclic transmission mechanism.
The method according to claim 2, wherein said determining RV information for current data transmission according to a preset RV cyclic transmission mechanism comprises:

When the number of TRPs in the plurality of TRPs is less than or equal to the number of RVs in the RV version set, sequentially selecting different RV indexes RV indexes for the plurality of TRPs in a predefined RV version set; When the number of TRPs in the plurality of TRPs is greater than the number of RVs in the RV version set, using a method of recycling, starting from the Nth TRP of the plurality of TRPs, from the first of the RV version sets Starting with the RV index, reselecting in the RV version set; wherein N=the number of RVs in the RV version set is +1;

When retransmitting, the RV index used by the multiple TRPs in each transmission is different from the RV index used in the previous transmission; if the RV index in the RV version set is all used for transmission, the loop is adopted. Using the method, reselection begins with the first RV index in the set of RV versions.
The method of claim 1, wherein the determining the scheduling control information corresponding to the plurality of TRPs comprises:

Using one physical downlink control channel PDCCH as the scheduling control information of the multiple TRPs, to schedule the same data packet to be transmitted on the multiple TRPs; the PDCCH indicates that the same data packet transmits the same on different TRPs. Or different resources;

Alternatively, the plurality of PDCCHs are respectively used as scheduling control information of the plurality of TRPs, and the same data packet is scheduled to be transmitted on the plurality of TRPs.
The method according to claim 1, wherein when one physical downlink control channel PDCCH is used as scheduling control information of the plurality of TRPs, when the same data packet is scheduled to be transmitted on the plurality of TRPs, The UE indicates the transport block indication information, including:

Indicating the transport block indication information to the UE by using downlink control information DCI signaling; or

Decoding the PDCCH with the first radio network temporary identifier RNTI to indicate the transport block indication information to the UE; or

The RRC signaling is used to send the working mode indication information to the UE, where the working mode indication information is used to indicate that the UE works in the preset working mode to indicate the transport block indication information.
The method according to claim 1, wherein when one physical downlink control channel PDCCH is used as scheduling control information of the plurality of TRPs, when the same data packet is scheduled to be transmitted on the plurality of TRPs, The UE indicates the RV information, including:

And setting an RV index RV index for the TRP data corresponding to the DMRS port group according to a mapping relationship between the TRP and the demodulation reference signal port group DMRS port group, and indicating the RV index to the UE by using DCI signaling.
The method of claim 6, wherein the setting the RV index RV index for the TRP data corresponding to the DMRS port group comprises:

When the number of the DMRS port groups is less than or equal to the number of RVs in the RV version set, different RV indexes RV indexes are sequentially selected in a preset RV version set; when the number of the DMRS port groups is greater than the number When the number of RVs in the RV version set is cyclic, starting from the Mth DMRS port group in the DMRS port group, starting from the first RV index in the RV version set, at the RV Re-selection in the version set; wherein the number of RVs in the M=RV version set is +1;

In retransmission, the RV index used by the DMRS port group is different from the RV index used in the previous transmission; if the RV index in the RV version set is all used for transmission, the loop is adopted. Using the method, reselection begins with the first RV index in the set of RV versions.
The method according to claim 1, wherein when the plurality of PDCCHs are respectively used as scheduling control information of the plurality of TRPs, and the same data packet is scheduled to be transmitted on the plurality of TRPs, the The UE indicates the transport block indication information and the RV information, including:

The working mode indication information is sent by using one of the information fields of the RRC signaling or the second RNTI or the DCI signaling, where the working mode indication information is used to indicate that the UE works in a preset working mode to indicate the transport block to the UE. Indication information;

The RV information is indicated to the UE by using a PDCCH.
A data transmission method is applied to a UE, including:

Receiving data packets sent by the network side device from multiple TRPs;

Receiving, by the network side device, the transport block indication information and the RV information, where the transport block indication information is used to indicate whether the data packet sent by the multiple TRPs corresponds to the same transport block TB;

And determining, according to the transport block indication information, that the data packets sent by the multiple TRPs correspond to the same TB, combining the data packets sent by the multiple TRPs according to the RV information.
The method according to claim 9, wherein the receiving the transport block indication information and the RV information sent by the network side device comprises:

Receiving the DCI signaling sent by the network side device, where the DCI signaling is used to indicate the transporting block indication information; or receiving the first RNTI sent by the network side device to obtain the transporting block indication information; or And receiving the working mode indication information that is sent by the network side device by using the RRC signaling, where the working mode indication information is used to indicate that the UE works in a preset working mode, to obtain the transport block indication information;

Receiving DCI signaling sent by the network side device to obtain the RV information.
The method according to claim 9, wherein the receiving the transport block indication information and the RV information sent by the network side device comprises:

Receiving the working mode indication information that is sent by the network side device by using the RRC signaling or the second RNTI or using one of the information fields of the DCI signaling, where the working mode indication information is used to indicate that the UE works in a preset working mode, Obtaining transport block indication information;

The RV information is acquired through a PDCCH.
The method according to claim 11, wherein if the working mode indication information sent by the network side device by using the RRC signaling is received, the determining, according to the transport block indication information, the data packet sent by the multiple TRPs Corresponding to the same TB, the data packets sent by the multiple TRPs are combined in combination with the RV information, including:

Monitoring a plurality of different PDCCHs and detecting the PDSCH, and combining the data packets of the multiple TRPs in combination with the RV information when receiving a plurality of different PDSCHs.
The method according to claim 11, wherein, when receiving the working mode indication information sent by the network side device by using the second RNTI, determining, according to the transport block indication information, the data packet sent by the multiple TRPs Corresponding to the same TB, the data packets sent by the multiple TRPs are combined in combination with the RV information, including:

Determining whether the second RNTI is a RNTI dedicated to the high reliability communication mode, and determining the data packet sent from the multiple TRPs in combination with the RV information when determining that the second RNTI is a RNTI dedicated to the high reliability communication mode Consolidate.
A communication device comprising: a transceiver, a memory, a processor, and a computer program stored on the memory and operable on the processor;

The processor is configured to read a program in the memory and perform the following process:

Determining, when the user equipment UE transmits the data packet on the multiple transmission and reception points TRP, the redundancy version RV information used for the current data transmission; determining the scheduling control information corresponding to the multiple TRPs; indicating the transmission block indication information to the UE And the RV information, the transport block indication information is used to indicate whether the data packets of the multiple TRPs correspond to the same transport block TB;

The transceiver is configured to send, by using the scheduling control information, the data packet of the multiple TRPs to the UE.
The apparatus of claim 14, wherein the processor is further configured to read a program in the memory and perform the following process:

The RV information for the current data transmission is determined according to a preset RV cyclic transmission mechanism.
The apparatus according to claim 15, wherein said processor is further configured to read a program in the memory and perform the following process:

When the number of TRPs in the plurality of TRPs is less than or equal to the number of RVs in the RV version set, sequentially selecting different RV indexes RV indexes for the plurality of TRPs in a predefined RV version set; When the number of TRPs in the plurality of TRPs is greater than the number of RVs in the RV version set, using a method of recycling, starting from the Nth TRP of the plurality of TRPs, from the first of the RV version sets Starting with the RV index, reselecting in the RV version set; wherein N=the number of RVs in the RV version set is +1;

When retransmitting, the RV index used by the multiple TRPs in each transmission is different from the RV index used in the previous transmission; if the RV index in the RV version set is all used for transmission, the loop is adopted. Using the method, reselection begins with the first RV index in the set of RV versions.
The apparatus of claim 14, wherein the processor is further configured to read a program in the memory and perform the following process:

Using one physical downlink control channel PDCCH as the scheduling control information of the multiple TRPs, to schedule the same data packet to be transmitted on the multiple TRPs; the PDCCH indicates that the same data packet transmits the same on different TRPs. Or different resources;

Alternatively, the plurality of PDCCHs are respectively used as scheduling control information of the plurality of TRPs, and the same data packet is scheduled to be transmitted on the plurality of TRPs.
The apparatus of claim 14, wherein the processor is further configured to read a program in the memory and perform the following process:

Indicating the transport block indication information to the UE by using downlink control information DCI signaling; or

Decoding the PDCCH with the first radio network temporary identifier RNTI to indicate the transport block indication information to the UE; or

The RRC signaling is used to send the working mode indication information to the UE, where the working mode indication information is used to indicate that the UE works in the preset working mode to indicate the transport block indication information.
The apparatus of claim 14, wherein the processor is further configured to read a program in the memory and perform the following process:

And setting an RV index RV index for the TRP data corresponding to the DMRS port group according to a mapping relationship between the TRP and the demodulation reference signal port group DMRS port group, and indicating the RV index to the UE by using DCI signaling.
The apparatus according to claim 19, wherein said processor is further configured to read a program in the memory and perform the following process:

When the number of the DMRS port groups is less than or equal to the number of RVs in the RV version set, different RV indexes RV indexes are sequentially selected in a preset RV version set; when the number of the DMRS port groups is greater than the number When the number of RVs in the RV version set is cyclic, starting from the Mth DMRS port group in the DMRS port group, starting from the first RV index in the RV version set, at the RV Re-selection in the version set; wherein the number of RVs in the M=RV version set is +1;

In retransmission, the RV index used by the DMRS port group is different from the RV index used in the previous transmission; if the RV index in the RV version set is all used for transmission, the loop is adopted. Using the method, reselection begins with the first RV index in the set of RV versions.
The apparatus of claim 14, wherein the processor is further configured to read a program in the memory and perform the following process:

The working mode indication information is sent by using one of the information fields of the RRC signaling or the second RNTI or the DCI signaling, where the working mode indication information is used to indicate that the UE works in a preset working mode to indicate the transport block to the UE. Indication information;

The RV information is indicated to the UE by using a PDCCH.
A communication device comprising: a transceiver, a memory, a processor, and a computer program stored on the memory and operable on the processor;

The transceiver is configured to receive a data packet sent by the network side device from multiple TRPs, and receive the transport block indication information and the RV information sent by the network side device, where the transport block indication information is used to indicate the multiple Whether the data packet sent by the TRP corresponds to the same transport block TB;

The processor is configured to read a program in the memory and perform the following process:

And determining, according to the transport block indication information, that the data packets sent by the multiple TRPs correspond to the same TB, combining the data packets sent by the multiple TRPs according to the RV information.
The device according to claim 22, wherein the transceiver is configured to receive DCI signaling sent by the network side device, where the DCI signaling is used to indicate the transport block indication information; or receive the network The first RNTI sent by the side device to obtain the transport block indication information; or the working mode indication information sent by the network side device by using the RRC signaling, where the working mode indication information is used to indicate that the UE works in a preset work. In the mode, the transport block indication information is obtained, and the DCI signaling sent by the network side device is received to obtain the RV information.
The apparatus according to claim 22, wherein

The transceiver is configured to receive the DCI signaling sent by the network side device, and receive the working mode indication information that is sent by the network side device by using the RRC signaling or the second RNTI or by using one of the DCI signaling fields. The working mode indication information is used to indicate that the UE works in a preset working mode to obtain the transport block indication information;

The processor is configured to read a program in the memory and perform the following process:

The RV information is acquired through a PDCCH.
The apparatus according to claim 24, wherein said processor is configured to read a program in the memory and perform the following process:

Monitoring a plurality of different PDCCHs and detecting the PDSCH, and combining the data packets of the multiple TRPs in combination with the RV information when receiving a plurality of different PDSCHs.
The apparatus according to claim 22, wherein said processor is configured to read a program in the memory and perform the following process:

Determining whether the second RNTI is a RNTI dedicated to the high reliability communication mode, and determining the data packet sent from the multiple TRPs in combination with the RV information when determining that the second RNTI is a RNTI dedicated to the high reliability communication mode Consolidate.
A data transmission device comprising:

a determining module, configured to determine redundancy version RV information for current data transmission when determining that the user equipment UE transmits a data packet on multiple transmission receiving points TRP;

a processing module, configured to determine scheduling control information corresponding to multiple TRPs;

The indication module is configured to indicate to the UE, the transport block indication information and the RV information, where the transport block indication information is used to indicate whether the data packets of the multiple TRPs correspond to the same transport block TB;

And a sending module, configured to send, by using the scheduling control information, the data packet of the multiple TRPs to the UE.
The apparatus of claim 27 wherein said processing module is operative to:

Using one physical downlink control channel PDCCH as the scheduling control information of the multiple TRPs, to schedule the same data packet to be transmitted on the multiple TRPs; the PDCCH indicates that the same data packet transmits the same on different TRPs. Or different resources;

Alternatively, the plurality of PDCCHs are respectively used as scheduling control information of the plurality of TRPs, and the same data packet is scheduled to be transmitted on the plurality of TRPs.
A data transmission device comprising:

a first receiving module, configured to receive a data packet sent by the network side device from multiple TRPs;

a second receiving module, configured to receive the transport block indication information and the RV information sent by the network side device, where the transport block indication information is used to indicate whether the data packets sent by the multiple TRPs correspond to the same transport block TB;

And a processing module, configured to, when determining, according to the transport block indication information, that the data packets sent by the multiple TRPs correspond to the same TB, combine the data packets sent by the multiple TRPs according to the RV information.
The apparatus of claim 29, wherein the second receiving module comprises:

a first receiving submodule, configured to receive DCI signaling sent by the network side device, where the DCI signaling is used to indicate the transporting block indication information; or receive the first RNTI sent by the network side device to obtain The transporting block indicates information; or receiving the working mode indication information that is sent by the network side device by using the RRC signaling, where the working mode indication information is used to indicate that the UE works in a preset working mode, to obtain the transport block indication. information;

The second receiving submodule is configured to receive DCI signaling sent by the network side device to obtain the RV information.
The apparatus of claim 29, wherein the second receiving module comprises:

a third receiving submodule, configured to receive the working mode indication information that is sent by the network side device by using the RRC signaling or the second RNTI or using one of the information fields in the DCI signaling, where the working mode indication information is used to indicate that the UE works. In the preset working mode, to obtain the transport block indication information;

Obtaining a submodule, configured to acquire the RV information by using a PDCCH.
A computer readable storage medium for storing a computer program, wherein the computer program is executed by a processor to implement the steps of the method of any one of claims 1 to 8; or the computer program The steps of the method of any one of claims 9 to 13 are carried out when executed by a processor.