WO2019192583A1

WO2019192583A1 - Information feedback method, apparatus, and system

Info

Publication number: WO2019192583A1
Application number: PCT/CN2019/081414
Authority: WO
Inventors: 曹永照; 胡小群; 张芳; 周国华; 唐臻飞
Original assignee: 华为技术有限公司
Priority date: 2018-04-04
Filing date: 2019-04-04
Publication date: 2019-10-10
Also published as: CN110351025B; CN110351025A

Abstract

Embodiments of the present application provide an information feedback method. The feedback method comprises: receiving a plurality of transmission blocks (TBs); sending a semi-static HARQ codebook corresponding to the plurality of TBs to an access network device; in the plurality of TBs, and if DTX occurs in the initial transmission of one TB, sending indication information to the access network device, the indication information being used for indicating that a TB to which DTX occurs in the initial transmission exists in the plurality of TBs or DTX occurs in the initial transmission of the TB exists in a HARQ ID. The method can implement report of DTX information by a terminal, thereby avoiding the situation of transmission failure caused by DTX, and improving the success rate of data transmission.

Description

Information feedback method, device and system

This application claims the priority of the Chinese Patent Application filed on April 4, 2018, the Chinese National Intellectual Property Office, the application number is 201810302375.1, and the application name is "information feedback method, device and system", the entire contents of which are incorporated herein by reference. In the application.

Technical field

The present application relates to the field of wireless communication technologies, and in particular, to an information feedback method, apparatus, and system.

Background technique

The hybrid automatic repeat request (HARQ) mechanism is a MAC layer retransmission processing mechanism, which can implement fast retransmission.

HARQ combines forward error correction (FEC) and (automatic repeat request, ARQ). For errors that FEC cannot correct, the receiving end requests the sender to resend the data through the ARQ mechanism. The receiving end uses an error detection code, usually a CRC check, to detect if the received data packet is in error. If there is no error, the receiving end will send a positive acknowledgment (ACK) to the sender, and after receiving the ACK, the sender will send the next packet. If an error occurs, the receiver will discard the packet and send a negative acknowledgment (NACK) to the sender. After receiving the NACK, the sender will resend the same data.

By using HARQ (HARQ with soft combining) with soft combining, the received erroneous data packets are stored in a HARQ buffer and merged with the subsequently received retransmitted data packets, thereby obtaining a decoding ratio. More reliable data packets (the process of "soft merge"). Then, the combined data packet is decoded. If it still fails, the process of "requesting retransmission and then soft combining" is repeated.

However, the HARQ mechanism may have a transmission failure. How to improve the success rate of data transmission in the HARQ mechanism has become an urgent problem to be solved.

Summary of the invention

The application provides an information feedback method, device and system, which can improve the success rate of data transmission in the HARQ mechanism.

In a first aspect, an embodiment of the present application provides an information feedback method, which may be used in a terminal or a chip in a terminal. The method includes: receiving a plurality of transport blocks TB; and transmitting, to the access network device, the semi-static hybrid automatic repeat request HARQ codebook corresponding to the plurality of TBs. If the initial transmission of the first TB of the multiple TBs occurs, the semi-static HARQ codebook includes indication information, where the indication information is used to indicate that the TB in which the DTX is initially transmitted in the multiple TBs or the DTX occurred in the first pass of the first TB.

The terminal or the chip in the terminal 12 determines whether the current TB is a retransmission, and the DTX of the initial transmission occurs, and can accurately identify whether the current retransmission of the initial transmission has occurred DTX, and then carries the DTX information in the semi-static HARQ codebook. Send to the access network device to improve the success rate of data transmission.

In a second aspect, an embodiment of the present application provides an information feedback method, which can be used in a terminal or a chip in a terminal. The method includes: receiving a plurality of TBs; and transmitting, to the access network device, the semi-static HARQ codebook corresponding to the plurality of TBs. If the first transmission of the first TB of the multiple TBs is DTX, the indication information is sent to the access network device, where the indication information is used to indicate that the TB in which the DTX is initially transmitted in the multiple TBs or the DTX occurred in the first pass of the first TB.

The terminal or the chip in the terminal 12 determines whether the current TB is a retransmission, and the DTX is generated in the initial transmission, and can accurately identify whether the current retransmission of the initial transmission has occurred DTX, and then send the DTX information to the access network device, for example, It can be carried by other information, thereby increasing the success rate of data transmission.

Optionally, in the method of the first aspect or the second aspect, the indication information is sent to the access network device by using the first SR resource.

Optionally, in the method of the first aspect or the second aspect, the first preamble corresponding to the indication information is sent to the access network device.

Optionally, in the method of the first aspect or the second aspect, the indication information includes an identifier of the first HARQ process, where the first TB is a TB corresponding to the first HARQ process.

Optionally, in the method of the first aspect or the second aspect, if the modulation coding scheme MCS corresponding to the first TB of the multiple TBs or the redundancy version RV corresponding to the first TB indicates retransmission, and the A new data corresponding to one TB indicates an NDI flip, and the first TB has DTX.

Optionally, the method of the first aspect or the second aspect further includes receiving, from the access network device, an initial transmission of data corresponding to the initial transmission of the first TB.

In a third aspect, an embodiment of the present application provides an information feedback method, which may be used for an access network device or a chip in an access network device. The method includes: sending a plurality of transport blocks TB to the terminal; and receiving, by the access network device, the semi-static hybrid automatic repeat request HARQ codebook corresponding to the multiple TBs; wherein, if the first TB of the multiple TBs is The DTX is transmitted, and the semi-static HARQ codebook includes indication information, where the indication information is used to indicate that there is a TB in which the DTX is initially transmitted in the plurality of TBs or DTX occurs in the initial transmission of the first TB.

The chip in the access network device 11 or the access network device 11 receives the indication information of the DTX, and can learn which TBs of the terminal 12 have DTX, so as to transmit the initial transmission of data to the terminal 12, thereby improving the success rate of data transmission.

In a fourth aspect, the embodiment of the present application provides an information feedback method, which may be used for an access network device or a chip in an access network device. The method includes: sending a plurality of transport blocks TB to the terminal; and receiving, by the access network device, the semi-static hybrid automatic repeat request HARQ codebook corresponding to the multiple TBs; wherein, if the first TB of the multiple TBs is The DTX is transmitted, and the indication information is received from the access network device, where the indication information is used to indicate that the TB in which the DTX is initially transmitted in the plurality of TBs or the DTX in the initial transmission of the first TB occurs.

Optionally, in the method of the third aspect or the fourth aspect, the indication information is received from the access network device by using the first SR resource.

Optionally, in the method of the third aspect or the fourth aspect, the first preamble corresponding to the indication information is received from the access network device.

Optionally, in the method of the third aspect or the fourth aspect, the indication information includes an identifier of the first HARQ process, where the first TB is a TB corresponding to the first HARQ process.

Optionally, in the method of the third aspect or the fourth aspect, if the modulation coding scheme MCS corresponding to the first TB of the multiple TBs or the redundancy version RV corresponding to the first TB indicates retransmission, and the A new data corresponding to one TB indicates an NDI flip, and the first TB has DTX.

Optionally, in the method of the third aspect or the fourth aspect, the method further includes sending, to the terminal, an initial transmission of data corresponding to the initial transmission of the first TB.

In a fifth aspect, an embodiment of the present application provides an apparatus, including a memory and a processor, where the memory is used to store a computer program, the processor is configured to call and run the computer program from a memory, so that the apparatus performs the first aspect described above. The method of the second aspect, the third aspect or the fourth aspect.

In a sixth aspect, an embodiment of the present application provides a computer program product, where the program product includes a program, and when the program is executed, the method of the first aspect, the second aspect, the third aspect, or the fourth aspect is performed. .

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS The present invention will be briefly described in the following description of the embodiments of the present invention, and it is obvious that the drawings in the following description are only some embodiments of the present invention, In other words, other drawings can be obtained from these drawings without paying for creative labor.

FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present application;

2A is a schematic diagram of a retransmission method in a HARQ mechanism according to an embodiment of the present application;

2B is a schematic diagram of a retransmission method in a HARQ mechanism according to an embodiment of the present disclosure;

FIG. 3 is a schematic diagram of a data transmission method according to an embodiment of the present application;

3A is a schematic diagram of a method for identifying DTX according to an embodiment of the present application;

FIG. 3B is a schematic diagram of another method for identifying DTX according to an embodiment of the present disclosure;

4A is a schematic diagram of a method for reporting DTX and sending data for generating DTX according to an embodiment of the present disclosure;

4B is a schematic diagram of a semi-static HARQ codebook according to an embodiment of the present application;

4C is a schematic diagram of another semi-static HARQ codebook according to an embodiment of the present application;

4D is a schematic diagram of another semi-static HARQ codebook provided by an embodiment of the present application;

FIG. 5A is a schematic diagram of a method for reporting DTX and sending data for generating DTX according to an embodiment of the present disclosure;

FIG. 5B is a schematic diagram of another semi-static HARQ codebook according to an embodiment of the present application; FIG.

FIG. 5C is a schematic diagram of another semi-static HARQ codebook according to an embodiment of the present application; FIG.

5D is a schematic diagram of another semi-static HARQ codebook provided by an embodiment of the present application;

FIG. 6A is a schematic diagram of a method for reporting DTX and sending a DTX data according to an embodiment of the present disclosure;

FIG. 6B is a schematic diagram of another semi-static HARQ codebook according to an embodiment of the present application; FIG.

FIG. 7 is a schematic diagram of another method for reporting DTX and sending data for generating DTX according to an embodiment of the present disclosure;

FIG. 8 is a schematic diagram of another method for reporting DTX and sending data for generating DTX according to an embodiment of the present disclosure;

FIG. 9 is a schematic diagram of another method for reporting DTX and sending data for generating DTX according to an embodiment of the present disclosure;

FIG. 10A is a schematic diagram of another method for reporting DTX and sending data for generating DTX according to an embodiment of the present disclosure;

FIG. 10B is a schematic diagram of another semi-static HARQ codebook according to an embodiment of the present application; FIG.

FIG. 10C is a schematic diagram of another semi-static HARQ codebook according to an embodiment of the present application; FIG.

FIG. 11 is a schematic diagram of an apparatus according to an embodiment of the present application;

FIG. 12 is a schematic diagram of another apparatus according to an embodiment of the present disclosure;

FIG. 13 is a schematic diagram of another apparatus according to an embodiment of the present application.

detailed description

The technical solutions in the present application will be described below in conjunction with the drawings in the present application.

The technical solution of the embodiment of the present application can be applied to the communication system shown in FIG. 1. The communication system includes an access network device 11 and a terminal 12, and the terminal 12 communicates with the access network device 11. It should be noted that the access network device 11 and the terminal 12 included in the communication system as described in FIG. 1 are merely examples, and the access network device 11 can communicate with a plurality of terminals.

The communication system may be a communication system supporting a fourth generation (4G) access technology, such as a long term evolution (LTE) access technology; or the communication system may also support a fifth generation (fifth) Generation, 5G) access technology communication system, such as new radio (NR) access technology; or the communication system may also be a communication system supporting third generation (3G) access technology, for example ( Universal mobile telecommunications system (UMTS) access technology; or the communication system may also be a second generation (2G) access technology communication system, such as a global system for mobile communications (GSM) access The technology; alternatively, the communication system may also be a communication system supporting a plurality of wireless technologies, such as a communication system supporting LTE technology and NR technology. In addition, the communication system can also be applied to future-oriented communication technologies.

The access network device 11 in FIG. 1 is used to support a device in which a terminal accesses a communication system, for example, may be a base transceiver station (BTS) and a base station controller (base station) in a 2G access technology communication system. Controller, BSC), Node B and radio network controller (RNC) in the 3G access technology communication system, evolved node B (eNB) in the 4G access technology communication system, The next generation base station (bNB), the transmission reception point (TRP), the relay node, the access point (AP), and the like in the 5G access technology communication system.

The terminal 12 in FIG. 1 may be a device that provides voice or data connectivity to a user, such as a user equipment (UE), a mobile station, a subscriber unit, and a platform. (station), terminal equipment (TE), etc. The terminal can be a cellular phone, a personal digital assistant (PDA), a wireless modem, a handheld, a laptop computer, a cordless phone, and a wireless device. Local loop (WLL) station, tablet (pad), etc. With the development of the wireless communication technology, the device that can access the communication system, can communicate with the network side of the communication system, or communicate with other objects through the communication system can be the terminal in the embodiment of the present application, for example, intelligent transportation. Terminals and automobiles, household equipment in smart homes, power meter reading instruments in smart grids, voltage monitoring instruments, environmental monitoring instruments, video monitoring instruments in smart safety networks, cash registers, etc. In this embodiment of the present application, the terminal may communicate with an access network device, such as the access network device 111 or the access network device 112. Communication can also be performed between multiple terminals. The terminal can be statically fixed or mobile.

In the above communication system, when the access network device 11 and the terminal 12 communicate by using the HARQ mechanism, retransmission failure may occur, resulting in a decrease in the success rate of data transmission.

The access network device 11 sends a plurality of TBs to the terminal 12 through a plurality of HARQ processes. The terminal 12 sends a feedback to the access network device 11 by using a semi-static codebook after receiving a plurality of TBs. In the embodiment of the present application, the description is convenient for the description. The feedback sent in the manner of a semi-static codebook is called a semi-static HARQ codebook.

It should be noted that one HARQ ID may include multiple HARQ processes, for example, two, three or more HARQ processes. For convenience of description, in the embodiment of the present application, one HARQ ID includes one HARQ process as an example. It should be noted that the content of the embodiment of the present application is also applicable to the case where one HARQ ID includes multiple HARQ processes.

Description will be made below with reference to FIGS. 2A and 2B.

The HARQ process of HARQ ID 6 transmits TB1 to terminal 12, and the HARQ process of HARQ ID 7 transmits TB4 to terminal 12, and the HARQ process of HARQ ID 8 transmits TB7 to terminal 12. After receiving the TB1, the terminal 12 performs the CRC check, and the verification succeeds. The feedback of the TB1 in the semi-static HARQ codebook 1 is ACK. After receiving the TB4, the terminal 12 performs the CRC check, and the verification succeeds. The semi-static HARQ codebook 1 The feedback of the TB3 is ACK, and the terminal 12 performs the CRC check after receiving the TB7, and the verification is successful. The feedback of the TB7 in the semi-static HARQ codebook 1 is ACK.

After the access network device 11 receives the semi-static HARQ codebook 1, since the feedback of TB1, TB4, and TB7 is ACK, the HARQ process of the HARQ ID 6 sends the new data TB3 to the terminal 12, and the HARQ process of the HARQ ID 7 is directed to the terminal 12. The new data TB5 is transmitted, and the HARQ process of the HARQ ID 8 transmits the new data TB to the terminal 12. The scheduling of the new data TB3 is discontinuous transmission (DTX), that is, the terminal 12 does not receive the DCI of the TB3, and the terminal 12 cannot acquire the time-frequency resource of the TB3, so that the terminal 12 does not receive the TB3, and the semi-static HARQ is obtained at this time. The feedback of TB3 in codebook 2 is NACK. After receiving the TB5, the terminal 12 performs the CRC check, and the verification succeeds. The feedback of the TB5 in the semi-static HARQ codebook 2 is ACK. After receiving the TB8, the terminal 12 performs the CRC check, and the verification succeeds. The semi-static HARQ codebook 2 The feedback of TB8 is ACK.

After the access network device 11 receives the semi-static HARQ codebook 2, since the feedback of the TB3 is NACK, the HARQ process of the HARQ ID 6 sends the first retransmission of the TB3 to the terminal 12; since the feedback of TB5 and TB8 is ACK The HARQ process of HARQ ID 7 will send new data TB6 to terminal 12, and the HARQ process of HARQ ID 8 will send new data TB9 to terminal 12. After the terminal 12 receives the first retransmission of TB3, the terminal 12 does not receive the initial transmission of TB3, and the first retransmission CRC check for TB3 fails, and the feedback of TB3 in the semi-static HARQ codebook 3 is NACK; After receiving the TB6, the terminal 12 performs the CRC check, and the check succeeds. The feedback of the TB6 in the semi-static HARQ codebook 3 is ACK; the scheduling of the new data TB3 occurs DTX, and the feedback of the TB3 in the semi-static HARQ codebook 2 is NACK. .

From FIG. 2A, it can be seen that after the initial transmission of TB3 occurs, the first retransmission of TB3 fails, and since the terminal 12 does not receive the initial transmission of TB3, the subsequent retransmission of TB3 will always fail.

In the related art, a scheme for coping with retransmission failure is provided. After receiving the retransmission, the terminal 12 uses the TBS of the TB received by the same HARQ process for the last time to perform the CRC check. After the terminal 12 receives the first retransmission of TB3, the terminal 12 uses the same HARQ process, and the TBS of the last received TB performs CRC check on TB3, that is, the terminal 12 uses the TBS of TB1 to perform CRC calibration on TB3. Test.

The solution has the following problems: TB1 and TB3 are two different TBs, and the TBS of TB1 may be different from the TBS of TB3. When the TBS is different, the CRC check of the TB3 by the terminal 12 still fails.

The embodiment of the present application provides a solution for improving data success rate in a HARQ semi-static feedback mechanism. The scheme includes two parts. The first part is to identify the DTX, and the terminal 12 identifies whether the initial transmission schedule has occurred DTX when retransmitting, or whether the terminal 12 recognizes whether DTX has occurred during the initial transmission; the second part is DTX. The reporting and the sending of the data of the DTX are performed, and the terminal 12 reports the identified DTX to the access network device 11, and the access network device 11 locates the data of the DTX, and sends the data of the DTX according to the initial transmission. The terminal 12 is provided to solve the problem that the initial transmission schedule occurs DTX, causing subsequent retransmission failure.

It should be noted that, in the embodiment of the present application, DTX occurs in one TB, and it can be understood that the scheduling of the TB occurs DTX, or the terminal does not receive the DCI of the TB. The semi-static HARQ codebook is a feedback mode in the HARQ mechanism. In the feedback mode, the terminal feeds back the receiving state of the TB to the access network device in a semi-static manner. The semi-static HARQ codebook can be called a semi-static HARQ codebook. , or semi-static codebook. The MCS, RV, or NDI of the TB can be understood as the MCS, RV, or NDI of the TB in the DCI information corresponding to the TB.

A first embodiment for identifying DTX in the embodiment of the present application will be described below with reference to FIG.

S301: The access network device 11 sends downlink control information (DCI) to the terminal 12.

Optionally, the terminal can save the DCI.

For example, the terminal 12 can receive the DCI from the access network device 11 through a physical downlink control channel (PDCCH).

The DCI includes resource allocation information, a hybrid automatic repeat request (HARQ) identifier (ID), and control information of a data block (transport block, TB), and the control information of the TB includes a modulation and coding scheme (modulation) And coding scheme (MCS), new data indicator (NDI), redundancy version (RV).

For example, the HARQ ID of a HARQ process is 6, the current transport block is TB3, and the terminal 12 receives the DCI3 from the access network device 11, and the DCI3 may include the following information:

(1) Resource allocation information of TB3, including time domain and frequency domain allocation information of TB3;

(2) HARQ ID 6;

(3) Control information of TB3, for example, including MCS 29, NDI 1, RV 1.

It should be noted that the DCI format is not limited in the embodiment of the present application. For example, the DCI format may be 1,1A, 1B, 1C, 1D, 2, 2A, 2B or 2C.

The DCI of the DCI format supporting the space division multiplexing may include control information of more than one TB. For example, the DCI of the DCI format of 2, 2A, 2B or 2C may include control information of multiple TBs, where the multiple TBs can be transmitted using different HARQ processes, but using the same HARQ ID. The HARQ process of each TB can be directly indicated by a HARQ ID or indirectly by a HARQ ID+TB number.

For convenience of description, the embodiment of the present application is described by taking the control information of DCI3 including TB3 as an example. Those skilled in the art can understand that the embodiment of the present application is also applicable to the case where the DCI includes one or more TB control information.

S302: The access network device 11 sends a TB to the terminal 12 on the corresponding resource according to the resource allocation information in the received DCI.

For example, the access network device 11 may send a TB to the terminal 12 on the corresponding resource according to the resource allocation information in the received DCI through a physical downlink shared channel (PDSCH).

Correspondingly, the terminal 12 can receive the TB from the access network device 11 on the resource indicated by the DCI.

It should be noted that if some DCIs of the DCI format supporting space division multiplexing include control information of one or more TBs, the access network device 11 transmits one or more TBs to the terminal on the resources indicated by the DCI.

It should be noted that, in this embodiment, the steps of multiple S301-S302 may be included, that is, the terminal 12 may receive multiple DCIs, and then carry feedback of multiple TBs indicated by the DCI in the semi-static codebook.

S303: The terminal 12 determines that the TB in which the DTX has occurred is scheduled.

The embodiment of the present application provides a method for identifying DTX, which is used to determine each TB in a semi-static HARQ codebook. The following is an example of determining a TB. As shown in FIG. 3A, it is first determined whether Retransmission, and secondly determine whether the DTX is scheduled for its initial transmission.

For the determination of whether the TB is a retransmission, the embodiment of the present application provides a first implementation manner, where the first implementation manner may include:

First, the terminal 12 obtains Quadrature Amplitude Modulation (QAM) information, and determines whether the current TB MCS or RV indicates retransmission in combination with the QAM information. If retransmission is indicated, the TB is retransmitted; if no retransmission is indicated , indicating that the current TB is not a retransmission.

The terminal 12 obtains the QAM information. For example, the terminal 12 obtains the QAM information through the RRC reconfiguration message, for example, by using the cellgroupconfig information in the RRC reconfiguration message, where the RRC reconfiguration message may be in the user access process or the handover process; or the terminal 12 is configured according to The mapping table of MCS and MCS and QAM can determine QAM information.

It should be noted that the communication system can configure the MCS for initial transmission and retransmission under each QAM. Under different QAMs, the MCS used for initial transmission and retransmission can be different. The current TB is determined to be a retransmission according to the QAM information of the terminal 12 and the MCS of the current TB. The value of the QAM and the value of the MCS used for retransmission are not limited in this embodiment. In addition, the communication system can be configured with the RV and the retransmitted RV. The RV information of the terminal 12 can be used to determine whether the current TB is a retransmission. The value of the RV is not limited in this embodiment.

For example, if the QAM is 64, the terminal 12 determines whether the MCS of the current TB is 29-31. If yes, the MCS indicates retransmission; if the QAM is 256, the terminal 12 determines whether the MCS of the current TB is 28-31, and if so, the MCS Instruct retransmission;

Alternatively, the terminal 12 determines whether the RV of the current TB is greater than or equal to 1, and if it is greater than or equal to 1, the RV indicates retransmission.

For example, the QAM of the terminal 12 is 64, and the MCS of TB3 is 29, indicating that the MCS of TB3 indicates retransmission; or the RV of TB3 is 1, indicating that the RV of TB3 indicates retransmission, and TB3 is retransmission.

For the determination of whether the TB is a retransmission, the embodiment of the present application provides a second implementation manner, where the first implementation manner may include:

First, in the semi-static HARQ codebook, if the terminal does not receive a certain TB in the semi-static codebook, the terminal 12 records related information of the unreceived TB, for example, records the HARQ process number of the unreceived TB. TB number and so on.

For example, in the last semi-static HARQ codebook, the terminal 12 does not receive the initial transmission of TB3, and the terminal 12 stores the related information of the initial transmission of TB3, such as HARQ ID 6, TB3, and the like.

Next, the terminal 12 determines the information of the last transmitted TB under the current TB HARQ process. If the last transmitted TB terminal 12 does not receive, the current TB is a retransmission.

For example, after receiving the TB3, the terminal 12 determines that the last transmitted TB in the same HARQ process is TB3, and the terminal 12 does not receive TB3, and the current TB3 is retransmitted.

Regarding the DTX of the initial transmission, the embodiment of the present application provides an implementation manner:

When the TB is retransmitted, the terminal 12 determines whether the NDI of the current TB is the same as the NDI of the TB received by the same HARQ process. If it is different, it indicates that the scheduled transmission of the TB occurs DTX; if the same, the beginning of the TB is indicated. The DTX of the transmitted schedule did not occur. When the NDI of the current TB is different from the NDI of the TB received by the same HARQ process, it can be understood as NDI inversion. When the NDI of the current TB is the same as the NDI of the last received TB of the same HARQ process, it can be understood that the NDI does not reverse.

The terminal 12 determines whether the NDI of the current TB is the same as the NDI of the TB received by the same HARQ process, wherein the NDI of the current TB can be obtained from the DCI corresponding to the current TB; the NDI of the TB received by the same HARQ process last time may be Obtained from the DCI corresponding to the TB received by the same HARQ process. For example, when the terminal 12 receives the DCI of the same HARQ process last time, the terminal 12 stores it in the terminal 12, and the terminal allocates the resource according to the resource allocation information of the DCI. The TB is received on the resource and the received TB is stored in the terminal 12.

For example, the current TB is TB3, and according to DCI3, the NDI of TB3 is 1. It belongs to the same HARQ process as TB3. The last received TB of terminal 12 is TB1. Terminal 12 acquires the DCI of TB1, which is DCI1, DCI1 is 0, and the NDI of TB3 is different from the NDI of TB1.

The current TB of the TB is different from the TB received by the same HARQ process last time, indicating that the current TB is different from the data of the TB transmission received by the same HARQ process last time, and the current TB is a retransmission. It is noted that the access network device 11 does not send the current TB to the terminal 12 for the first time, that is, before the current TB is transmitted to the terminal 12 through the same HARQ process, the access network device 11 transmits the DCI and the TB to the terminal 12, and the TB is The initial transmission of the current TB (the MCS or RV of the TB indicates the initial transmission, and the NDI of the TB is different from the NDI of the TB received by the same HARQ process last time), but the terminal 12 does not receive the DCI, resulting in failure The DTB is received when the TB is received according to the resource indicated by the DCI, that is, when the downlink is scheduled for the initial transmission of the current TB.

For example, since the NDI of TB3 is 1, and the NDI of TB1 is 0, it indicates that TB3 and TB1 transmit different data, where TB1 is the last time that terminal 12 received the same HARQ process. However, both MCS and RV of TB3 indicate retransmission. It is noted that between TB1 and TB3, the access network device 11 may send an initial transmission of TB3 to the terminal 12 (the initial transmission of the TB3 is 1 and the MCS is 0-28, and the RV is 0), but the terminal 12 does not receive it. The initial DCI of TB3 causes the terminal 12 to fail to receive the initial transmission of TB3 according to the resource indicated by the DCI, that is, DTX occurs when the downlink scheduling TB3 is initially transmitted.

When receiving the TB, the terminal 12 combines the MCS, the RV, the information transmitted by the same HARQ process saved by the terminal 12, and one or more of the NDIs to determine whether it is a retransmission, and the DTX is generated in the initial transmission. It is accurate to identify whether DTX has occurred in the initial transmission of the current retransmission.

An embodiment of the present application provides another method for identifying DTX. As shown in FIG. 3B, the method determines each TB in a semi-static HARQ codebook, and determines whether the terminal 12 has not received. If not, the TB is not received. The scheduling of DTX occurred.

The terminal 12 determines the unreceived TB as the scheduling occurrence DTX in the semi-static HARQ codebook, so that the terminal 12 can be recognized if the initial transmission occurs, thereby avoiding unnecessary retransmission and saving the wireless network resources.

S304: The terminal 12 transmits a semi-static HARQ codebook and a DTX indication to the access network device 11.

S305: The access network device 11 transmits the initial transmission of the data of the DTX to the terminal 12.

Semi-Static HARQ Codebook Semi-Static HARQ Codebook The following description of Figures 4A through 10C corresponds to the steps S304-S305 of Figure 3.

A first embodiment of the DTX report and the DTX data generation may be used in the foregoing, and may be used in the foregoing first or second embodiment for identifying DTX.

S401: The terminal 12 sends a semi-static HARQ codebook to the access network device 11, including a DTX indication. The semi-static HARQ codebook can be transmitted on the PUCCH or PUSCH.

FIG. 4B illustrates a schematic diagram of the semi-static HARQ codebook:

The semi-static HARQ codebook may include n bits, and n is an integer greater than or equal to 2, where:

(1) n-1 bits correspond to n-1 TB feedback, and each TB feedback occupies 1 bit;

The feedback for each TB can be 0 or 1, for example, 0 for NACK and 1 for ACK.

If the first implementation of the DTX is used (FIG. 3A), the terminal 12 determines that the feedback of each TB can refer to the content in FIG. 3A, and details are not described herein again.

If the second embodiment of the above-mentioned DTX is used (FIG. 3B), the terminal 12 determines that the feedback of each TB can refer to the content in FIG. 3B, and details are not described herein again.

The n-1 TBs belong to n-1 HARQ processes, and at least 2 HARQ processes in the n-1 HARQ processes may use the same HARQ identifier (identifer, ID), or may use different HARQ IDs.

(2) One bit is a DTX indication. As an optional design, the access network device 11 and the terminal 12 may configure, by an algorithm, a bit index of each TB in the semi-static HARQ codebook, and a bit index indicated by the DTX; the terminal 12 may be configured according to The algorithm adds the feedback and DTX indication of the corresponding TB to the corresponding bit index, and sends the semi-static HARQ codebook to the access network device 11. After receiving the semi-static HARQ codebook, the access network device 11 receives the semi-static HARQ codebook. The feedback of each TB and the DTX indication can be obtained by this algorithm.

For example, the access network device 11 and the terminal 12 are configured according to an algorithm. The first bit in the semi-static HARQ codebook is used to feed back the TB3 of the HARQ ID 6, and the second bit is used to feed back the TB of the HARQ ID 7. The third bit is used. The bit is used to feed back the TB 9 of the HARQ ID 8, and the 4th bit is the DTX indication.

If the first embodiment (FIG. 3A) for identifying DTX is used, the terminal 12 determines whether the TB is retransmitted after receiving the TB every time, and the scheduled transmission of the initial transmission DTX occurs. Reference may be made to the content in FIG. 3A, and details are not described herein again.

If at least one TB in the semi-static HARQ codebook is retransmitted and its initial transmission occurs in DTX during scheduling, the DTX indication indicates that DTX occurs, for example, the DTX indication is 1; if the semi-static HARQ Among the n TBs in the codebook, at least one TB is not retransmitted, and its initial transmission does not occur at the time of scheduling, and the DTX indication indicates that DTX does not occur, for example, the DTX indication is 0.

As shown in FIG. 2A, the terminal 12 receives the TB3 of the HARQ ID 6, the CRC check fails, and the DTX occurs when the initial transmission schedule of the TB3 is identified. The identification process may refer to the description in FIG. 3A; the terminal 12 receives the HARQ ID7. TB6, CRC check succeeded; terminal 12 did not receive TB9 of HARQ ID 8. Since TB3 is retransmitted, and DTX is generated in the initial transmission of TB3, the semi-static HARQ codebook can be as shown in FIG. 4C.

If the second embodiment of the above-mentioned DTX is used (FIG. 3B), the terminal 12 determines whether DTX is generated for each TB in the semi-static HARQ codebook. For details, refer to FIG. 3B, and details are not described herein again.

If at least one TB in the semi-static feedback codebook has DTX, the DTX indication indicates that DTX is generated, for example, the DTX indication is 1; if there is no initial transmission TB not received by the terminal 12 in the semi-static HARQ codebook, the DTX indication indicates that DTX occurs, for example, DTX indicates 0.

As shown in FIG. 2A, the terminal 12 receives the TB3 of the HARQ ID 6, and the CRC check fails; the terminal 12 receives the TB6 of the HARQ ID 7, and the CRC check succeeds; the terminal 12 does not receive the TB9 of the HARQ ID 8. Since the terminal 12 does not receive the TB9, TB9 is the initial transmission, and the DTX indication indicates that the DTX has occurred, for example, the DTX indication is 1, and the semi-static HARQ codebook can be as shown in FIG. 4D.

S402: After receiving the semi-static HARQ codebook, the access network device 11 determines whether the DTX indication indicates that DTX has occurred. If the DTX indication indicates that DTX has occurred, the process proceeds to S403.

For example, the access network device 11 receives the semi-static codebook as shown in FIG. 4C, acquires the DTX indication, and enters S403.

S403: The access network device 11 determines the TB that meets the DTX indication.

If the first implementation manner of identifying DTX (FIG. 3A) is adopted, the TB conforming to the DTX indication is: the retransmission with the feedback being NACK. Since the DTX indication is 1, it indicates that the initial transmission of at least 1 TB in the TB of the semi-static HARQ codebook may occur during scheduling, and the access network device 11 needs to locate the TB, and the initial transmission of the TB may occur DTX. .

As an implementation manner, the access network device 11 first determines the TB that is fed back to the NACK. Then, the scheduling information about the TB in the access network device 11 is read to determine whether it is a retransmission.

For example, TB3 and TB9 are fed back as NACK, and the access network device 11 knows that TB3 is retransmitted according to the scheduling information, so TB3 complies with the DTX indication; TB9 feeds back as NACK, and the access network device 11 uses TB9 as a new transmission according to the scheduling information, not Retransmission, so TB9 does not comply with the DTX indication.

If the second implementation manner of identifying DTX (FIG. 3B) is adopted, the TB conforming to the DTX indication is: the initial transmission of the feedback is NACK, and the access network device 11 transmits the TB to the terminal 12.

Since the DTX indication is 1, it indicates that at least one TB in the TB of the semi-static HARQ codebook may be DTX when scheduling, and the access network device 11 needs to locate the TB, and the TB may generate DTX.

As an implementation manner, the access network device 11 first determines that the feedback is NACK initial transmission, and then the read access network device 11 determines, according to the scheduling information, whether the access network device 11 has sent the initial transmission to the terminal 12.

It should be noted that the access network device 11 sends the initial transmission to the terminal 12, and the access network device 11 sends the initial transmission corresponding to the terminal 12 in the initial transmission corresponding to the semi-static HARQ codebook. DCI.

For example, TB3 and TB9 are fed back as NACK, TB3 is retransmitted, so TB3 does not comply with the DTX indication; TB9 feedback is NACK, which is a new transmission, and the access network device 11 can know that the access network device 11 sends the TB9 to the terminal 12 according to the scheduling information. , so TB9 complies with the DTX instructions.

S404: The access network device 11 sends the data corresponding to the TB corresponding to the DTX indication to the terminal 12 according to the initial transmission manner.

As an implementation manner, the access network device 11 acquires data corresponding to the TB that is in accordance with the DTX indication according to the scheduling information of the access network device 11, and sends the data corresponding to the TB to the terminal 12 according to the initial transmission manner, for example, regenerating The initial transmission and the initial DCI are generated, and the initial DCI is sent and the initial transmission is sent.

It should be noted that, if the data corresponding to the TB of the DTX indication is used, if the first implementation manner of identifying the DTX is adopted (FIG. 3A), the TB that conforms to the DTX indication is a retransmission with a feedback of NACK, and the corresponding data may be heavy. The initial data transmitted, that is, the complete data that needs to be transmitted during the scheduling process; if the second implementation method for identifying DTX is used (Fig. 3B), the TB conforming to the DTX indication is the initial transmission of the feedback NACK, and the corresponding The data can be the data corresponding to the initial transmission, that is, the complete data that needs to be transmitted during the scheduling process.

Generate initial and initial DCI, including:

The initiating NDI is reversed with respect to the TB that the access network device 11 sent the last time of the same HARQ process;

Recalculating the initial TBS;

The initial MCS is calculated based on the recalculated TBS. If the QAM of the terminal 12 is 64, the MCS of the initial transmission is 0-28; if the QAM of the terminal 12 is 256, the MCS of the initial transmission is 0-27.

The access network device 11 can obtain data corresponding to the TB that is in accordance with the DTX indication according to the scheduling information.

When re-generating the initial transmission, the access network device 11 may generate multiple initial transmissions according to the scheduling requirements of the access network device 11, and the multiple initial transmissions cover data corresponding to the TB that meets the DTX indication, or generate 1 initial transmission, the initial transmission covers the data corresponding to the TB of the DTX indication, that is, the access network device 11 sends the data corresponding to the TB corresponding to the DTX indication in the initial transmission mode, but the embodiment does not The manner in which the access network device 11 delivers is restricted, so that the access network device can select an appropriate manner according to scheduling requirements, thereby improving flexibility.

If the first implementation manner of identifying the DTX (FIG. 3A) is used, an achievable manner is also provided: the access network device 11 obtains the initial transmission of the TB conforming to the DTX indication according to the scheduling information of the access network device 11. For example, the access network device 11 stores the initial transmission of the TB conforming to the DTX indication, and transmits the initial transmission and the initial transmission DCI to the terminal 12.

For example, in S403, the access network device 11 determines that the TB3 is a TB that conforms to the DTX indication, and the access network device 11 acquires the initial transmission of the TB3 saved by the access network device 11 and the DCI of the initial transmission of the TB3 according to the scheduling information. The initial transmission of TB3 and the DCI of the initial transmission of TB3 are sent to the terminal 12.

In this embodiment, the access network device does not need to regenerate the initial transmission, and only needs to obtain the initial transmission saved in the access network device 11 and send it to the terminal 12 to solve the problem of retransmission failure, and reduce the access network device 11 burden. If the second embodiment of identifying DTX (Fig. 3B) is used, an achievable manner is also provided:

The access network device 11 obtains the TB that conforms to the DTX indication according to the scheduling information of the access network device 11. For example, the access network device 11 stores the TB that conforms to the DTX indication, and sends the TB and the DCI of the TB to the terminal 12.

For example, in S403, the access network device 11 determines that the TB9 is a TB that conforms to the DTX indication, and the access network device 11 acquires the TB9 and the DCI of the TB9 according to the scheduling information, and transmits the DCI of the TB9 and the TB9 to the terminal 12.

S405: The access network device 11 sends the data corresponding to the TB of the NACK in the semi-static HARQ codebook to the terminal 12 according to the retransmission manner.

In the semi-static feedback codebook, the remaining TBs whose feedback is NACK are not in accordance with the DTX indication, and the access network device 11 may transmit to the terminal 12 again in the manner of retransmission.

If the first implementation of the above-described DTX is identified (FIG. 3A), for example, TB9 is fed back as NACK and does not comply with the DTX indication, the access network device 11 transmits TB9 to the terminal 12 in a retransmission manner.

If the second embodiment (FIG. 3B) for identifying DTX is used, for example, TB3 is fed back as NACK and does not comply with the DTX indication, and the access network device 11 transmits TB3 to the terminal 12 in a retransmission manner.

By adding 1 bit to the semi-static HARQ codebook, the resources of the semi-static HARQ codebook are saved, and the problem of retransmission failure is solved, thereby improving the data success rate.

A second embodiment of the DTX reporting and the DTX data generation may be used in the foregoing description of the first embodiment or the second embodiment for identifying the DTX.

S501: The terminal 12 sends a semi-static HARQ codebook to the access network device 11, including an indication of whether DTX is generated for scheduling of each HARQ ID.

The semi-static HARQ codebook can be transmitted on the PUCCH or PUSCH.

FIG. 5B illustrates a schematic diagram of the semi-static HARQ codebook:

The semi-static HARQ codebook may include n bits, where n is an integer greater than or equal to 2, where:

(1) m bits correspond to feedback of m TBs, and feedback of each TB occupies 1 bit, and 2 points of n ≤ m ≤ n-1;

The feedback for each TB can be 0 or 1, for example, 0 for NACK and 1 for ACK.

The m TBs belong to m HARQ processes, and at least 2 HARQ processes in the m HARQ processes may use the same HARQ ID, or m HARQ processes use different HARQ IDs.

(2) n-m bits correspond to feedback of n-m HARQ IDs, and feedback of each HARQ ID occupies 1 bit.

The number of HARQs used by m TBs is n-m.

The feedback of each HARQ ID may be 1 or 0. For example, 1 indicates that the scheduling of the HARQ ID occurs DTX, and 0 indicates that the scheduling of the HARQ ID does not occur DTX.

As an implementation manner, the access network device 11 and the terminal 12 may configure, by an algorithm, a bit index of feedback of each TB in the semi-static HARQ codebook, and a bit index of feedback of each HARQ ID; the terminal 12 may The algorithm adds the feedback of the corresponding TB and the feedback of the corresponding HARQ ID to the corresponding bit index, and sends the semi-static HARQ codebook to the access network device 11, and the access network device 11 receives the semi-static HARQ code. Thereafter, feedback of each TB and feedback of each HARQ ID can be obtained by the algorithm.

For example, the access network device 11 and the terminal 12 are configured according to an algorithm. The first bit in the semi-static HARQ codebook is used to feed back the TB 3 feedback of the HARQ ID 6, and the second bit is used to feed back the TB 6 of the HARQ ID 7. 3 bits are used to feed back TB9 of HARQ ID 8, 4th bit is used to feed back HARQ ID 6, 5th bit is used to feed back HARQ ID 7, and 6th bit is used to feed back HARQ ID 8.

If the first implementation of the above-mentioned DTX is identified (FIG. 3A), the scheduling of the HARQ ID occurs. The meaning of DTX is that there is a TB corresponding to the HARQ ID, the TB is a retransmission, and the scheduling of its initial transmission occurs DTX.

A HARQ ID may correspond to one or more TBs. In this case, if at least one of the TBs is a retransmission and the initial transmission schedule is DTX, the scheduling of the HARQ ID occurs DTX.

Each time the terminal 12 receives the TB, it determines whether the TB is a retransmission, and the scheduling of its initial transmission occurs DTX. Reference may be made to the content in FIG. 3A, and details are not described herein again.

For example, the terminal 12 receives the TB3 of the HARQ ID 6, the CRC check fails, and it is recognized that the TB3 at the HARQ ID 6 is a retransmission, and the DTX of the initial transmission occurs; the terminal 12 receives the TB6 of the HARQ ID 7, the CRC school The test succeeded; the terminal 12 did not receive the TB9 of the HARQ ID 8. Then, the scheduling of the HARQ ID 6 occurs DTX, and the semi-static HARQ codebook of the terminal 12 can be as shown in FIG. 5C.

If the second embodiment for identifying DTX is used (FIG. 3B), the scheduling of the HARQ ID occurs. The meaning of DTX is that there is a TB corresponding to the HARQ ID, and the scheduling of the TB occurs DTX.

The terminal 12 determines whether the scheduling of the TB is DTX. For details, refer to the content in FIG. 3B, and details are not described herein again.

For example, terminal 12 receives TB3 of HARQ ID 6, CRC check fails; terminal 12 receives TB6 of HARQ ID 7, CRC check succeeds; terminal 12 does not receive TB9 of HARQ ID 8, TB9 is initial transmission, terminal 12 It is judged that the scheduling of TB9 occurs DTX. Then the semi-static HARQ codebook of the terminal 12 can be as shown in FIG. 5D (010001).

By indicating whether DTX occurs in each of the nm HARQ IDs, since 1≤nm≤m, whether DTX is generated by feeding m TBs through m bits respectively, the length of the semi-static HARQ codebook can be saved, and the transmission is saved. Communication resources of semi-static HARQ codebooks.

S502: The access network device 11 determines to schedule the HARQ ID of the DTX to occur.

If the first implementation of the DTX is identified (FIG. 3A), for example, the access network device 11 receives the semi-static HARQ codebook as shown in FIG. 5C, and according to the algorithm, obtains the HARQ ID 6 feedback as 1, the HARQ ID. 7 The feedback is 0, and the HARQ ID8 feedback is 0, then the HARQ ID of the scheduled DTX is HARQ ID 6.

If the second implementation of the above-mentioned DTX is identified (FIG. 3B), for example, the access network device 11 receives the semi-static HARQ codebook as shown in FIG. 5D, and according to the algorithm, the HARQ ID 6 feedback is 0, and the HARQ ID is obtained. 7 The feedback is 0, and the HARQ ID8 feedback is 1, then the HARQ ID of the scheduled DTX is HARQ ID 8.

S503: The access network device 11 determines a TB that meets the HARQ ID scheduling occurrence DTX indication.

If the first implementation manner of identifying the DTX (FIG. 3A) is adopted, the TB of the HARQ ID in which the DTX is scheduled to be scheduled is: under the HARQ ID, the feedback is a retransmission of the NACK.

As an implementation manner, the access network device 11 determines whether the TB of the HARQ ID is fed back as a NACK. If the feedback is a NACK, the access network device 11 determines whether it is a retransmission according to the scheduling information of the TB. For example, the access network device 11 receives the semi-static HARQ codebook as shown in FIG. 5C, and the access network device 11 determines TB3 under the HARQ ID 6, and the feedback is NACK, and according to the scheduling information, it can be known that TB3 is a retransmission. If the second embodiment of the above-mentioned DTX is identified (FIG. 3B), the TB of the HARQ ID in which the DTX is scheduled is scheduled to be: in the HARQ ID, the feedback is the initial transmission of the NACK, and the access network device 11 sends the message to the terminal 12. First pass.

It should be noted that the access network device 11 transmits the TB to the terminal 12, and the access network device 11 transmits the DCI corresponding to the TB to the terminal 12 in the scheduling of the TB corresponding to the semi-static HARQ codebook.

As an implementation manner, the access network device 11 determines whether the TB of the HARQ ID is a NACK and is an initial transmission. If yes, the access network device 11 determines, according to the scheduling information of the TB, whether the access network device 11 is to the terminal. 12 send the initial transmission.

For example, the access network device 11 receives the semi-static HARQ codebook as shown in FIG. 5D, and the access network device 11 determines the TB9 under the HARQ ID 8. The feedback is NACK and is initial transmission, and the access network is known according to the scheduling information. The device 11 transmits TB9 to the terminal 12.

S504: The access network device 11 sends, according to the initial transmission manner, the data corresponding to the TB of the HARQ ID-compliant scheduling occurrence DTX indication to the terminal 12.

S505: Send the data corresponding to the TB of the NACK in the semi-static HARQ codebook to the terminal 12 according to the retransmission manner.

S504-S505 can refer to the content of 404-S405 in FIG. 4A, and details are not described herein again.

By adding a number of bits (the number of HARQ IDs) in the semi-static HARQ codebook, the terminal 12 can recognize that the DQ is generated, and feed back the HARQ ID to the access network device 11, so that the access network device 11 can be more accurate. The data is located after the data of the DTX is generated, and then the data is sent again to reduce the retransmission of the data that does not occur in the DTX, thereby saving the wireless network resources and improving the data success rate.

A third embodiment of the DTX reporting and the DTX data generation may be used in the foregoing, and may be used in the foregoing first or second embodiment for identifying DTX.

S601: The access network device 11 sends the SR resource allocation information to the terminal 12, where the SR resource is used to indicate that DTX occurs.

The access network device 11 can transmit the SR resource allocation information to the terminal 12 through the RRC reconfiguration message in the random access procedure.

As an optional implementation manner, before the access network device 11 sends the SR resource allocation information to the terminal 12, the access network device 11 defines a new SR, where the SR is used to indicate DTX; and then the access network device 11 gives the new The SR allocates time-frequency resources.

If the first implementation of the DTX (FIG. 3A) is used, the SR resource is used to indicate that at least one TB exists in the semi-static HARQ codebook sent by the terminal 12 to the access network device 11, and the TB is a retransmission. And its initial transmission schedule occurs DTX.

If the second embodiment (FIG. 3B) for identifying DTX is used, the SR resource is used to indicate that at least one TB exists in the semi-static HARQ codebook sent by the terminal 12 to the access network device 11, and the TB is an initial transmission. And the DTX is scheduled for the initial transmission.

S602: The terminal 12 determines whether DTX occurs.

If the first implementation of the above-mentioned DTX is identified (FIG. 3A), the terminal 12 determines whether there is at least one TB in the semi-static HARQ codebook, the TB is a retransmission, and the initial transmission schedule generates DTX, if any, Then DTX occurs

Each time the terminal 12 receives the TB, it determines whether the TB is a retransmission, and the scheduling of the initial transmission occurs DTX. Reference may be made to the content in FIG. 3A, and details are not described herein again.

For example, the terminal 12 determines that TB3 in the semi-static HARQ codebook is a retransmission, and DTX occurs when the initial transmission schedule occurs in DTX.

If at least one TB in the semi-static feedback codebook has DTX, DTX indicates that DTX is generated; if there is no initial TB that is not received by the terminal 12 in the semi-static HARQ codebook, DTX occurs.

For example, if the terminal 12 determines that DTX has occurred in TB9 in the semi-static HARQ codebook, DTX occurs.

S603: The terminal 12 sends a semi-static HARQ codebook to the access network device 11.

FIG. 6B illustrates a schematic diagram of the semi-static HARQ codebook:

The semi-static HARQ codebook may include a bit, and a is an integer greater than or equal to 2, wherein a bit corresponds to feedback of a TB, and feedback of each TB occupies 1 bit;

The feedback for each TB can be 0 or 1, for example, 0 for NACK and 1 for ACK.

The a TBs belong to a HARQ process, and at least two HARQ processes in the a HARQ process may use the same HARQ ID, or may use different HARQ IDs.

As an optional design, the access network device 11 and the terminal 12 may perform an algorithm to configure a bit index of each TB in the semi-static HARQ codebook; the terminal 12 may use the corresponding TB according to the algorithm. The feedback and the DTX indication are filled in the corresponding bit index, and the semi-static HARQ codebook is sent to the access network device 11. After the access network device 11 receives the semi-static HARQ codebook, each algorithm can obtain each TB feedback.

For example, the access network device 11 and the terminal 12 are configured according to an algorithm. The first bit of the first bit in the semi-static HARQ codebook is used to feed back the TB3 of the HARQ ID 6, and the second bit is used to feed back the TB 6 of the HARQ ID 7. The third bit is used to feed back TB 9 of HARQ ID 8. .

For example, if the first implementation manner of identifying DTX (FIG. 3A) or the second implementation of identifying DTX (FIG. 3B) is adopted, terminal 12 receives TB3 of HARQ ID 6, and CRC check fails; terminal 12 Upon receiving the TB6 of the HARQ ID 7, the CRC check is successful; the terminal 12 does not receive the TB9 of the HARQ ID 8. At this time, the semi-static HARQ codebook can be as shown in FIG. 6B.

S604: If DTX occurs, the terminal 12 transmits information on the SR resource.

Correspondingly, the access network device 11 performs detection on the SR resource, and if detected, indicates that DTX occurs.

It should be noted that the information herein may be an indication that DTX occurs, or may be a pre-configured sequence. The access network device 11 receives the sequence, and the access network device 11 knows that DTX has occurred.

S605: The access network device 11 determines the TB that meets the DTX indication. .

S606: The access network device 11 sends the data corresponding to the TB corresponding to the DTX indication to the terminal 12 according to the initial transmission manner.

S607: The access network device 11 sends the data corresponding to the TB of the NACK in the semi-static HARQ codebook to the terminal 12 according to the retransmission manner.

S605-S607 can refer to related content in S403-S405 in FIG. 4A, and details are not described herein again.

The embodiment can solve the problem of retransmission failure and improve the data success rate. The AR2 can be reported to the access network device 11 after detecting the DTX by allocating the SR resource for indicating the DTX. The feedback codebook is modified. In addition, the allocation of the SR resources is flexible, and the access network device 11 can allocate the SR resources according to the current scheduling situation, thereby improving flexibility.

A fourth embodiment of the DTX reporting and the DTX data generation may be used in the foregoing, and may be used in the foregoing first or second embodiment for identifying DTX.

S701: The access network device 11 sends the SR resource allocation information to the terminal 12, where the SR resource is used to indicate whether the scheduling of a HARQID occurs DTX.

The SR resource allocation information itself may be an indication for indicating whether a scheduling of a HARQ ID occurs, or the SR resource allocation information may carry indication information indicating whether a scheduling of a HARQ ID occurs.

For example, the access network device 11 transmits the SR resource allocation information 1 to the terminal 12, which is used to indicate whether DTX of the downlink scheduling of the HARQID 6 occurs.

The access network device 11 may send a plurality of SR resource allocation information to the terminal 12, which are respectively used to indicate whether a HARQ ID is DTX, and the HARQ ID indicated by each SR resource allocation information is different.

For example, the access network device 11 sends the SR resource allocation information 1 and the SR resource allocation information 2 to the terminal 12. The SR resource indicated by the SR resource allocation information 1 is used to indicate whether the downlink scheduling of the HARQ ID 6 occurs, and the SR resource allocation information 2 The indicated SR resource is used to indicate whether DTX of the downlink scheduling of the HARQ ID 8 occurs.

S702: The terminal 12 determines whether DTX of the scheduling of the HARQ ID occurs.

A HARQ ID may correspond to one or more TBs. In this case, if at least one of the TBs is a retransmission and the initial transmission schedule occurs DTX, the scheduling of the HARQ ID occurs DTX.

For example, the terminal 12 receives the TB3 of the HARQ ID 6, the CRC check fails, and it is recognized that the TB3 at the HARQ ID 6 is a retransmission, and the DTX of the initial transmission occurs; the terminal 12 receives the TB6 of the HARQ ID 7, the CRC school The test succeeded; the terminal 12 did not receive the TB9 of the HARQ ID 8. Then the scheduling of HARQ ID 6 occurs with DTX.

For example, the terminal 12 receives the TB3 of the HARQ ID 6, and the CRC check fails; the terminal 12 receives the TB6 of the HARQ ID7, and the CRC check succeeds; the terminal 12 does not receive the TB9 of the HARQ ID 8, the TB9 is the initial transmission, and the terminal 12 determines The scheduling of TB9 occurs DTX. Then the scheduling of HARQ ID 8 occurs with DTX.

S703: The terminal 12 transmits a semi-static HARQ codebook to the access network device 11.

S703 can refer to related content in S602 in FIG. 6A, and details are not described herein again.

S704: If DTX occurs in the scheduling of the HARQ ID, the information is sent on the SR resource.

Correspondingly, the access network device 11 performs detection on the SR resource. If the information is detected, it indicates that the scheduling of the HARQ ID occurs DTX.

According to the first embodiment (FIG. 3A) for identifying the DTX, for example, the scheduling of the HARQ ID 6 occurs with DTX, and the information is transmitted on the SR resource indicated by the SR resource allocation information 1.

If the second embodiment (FIG. 3B) for identifying DTX is used, for example, the scheduling of the HARQ ID 8 occurs with DTX, and the information is transmitted on the SR resource indicated by the SR resource allocation information 2.

It should be noted that the information herein may be an indication that the scheduling of the HARQ ID occurs DTX, or may be a pre-configured sequence, the access network device 11 receives the sequence, and the access network device 11 learns that the scheduling of the HARQ ID occurs DTX.

S705: The access network device 11 determines the TB that meets the DTX indication.

S706: The access network device 11 sends the data corresponding to the TB corresponding to the DTX indication to the terminal 12 according to the initial transmission manner.

S707: Send the data corresponding to the TB of the NACK in the semi-static HARQ codebook to the terminal 12 according to the retransmission manner.

By adding a number of bits (the number of HARQ IDs) in the semi-static HARQ codebook, the terminal 12 can recognize that the DQ is generated, and feed back the HARQ ID to the access network device 11, so that the access network device 11 can be more accurate. The data is located after the data of the DTX is generated, and then the data is sent again to reduce the retransmission of the data in which DTX does not occur, thereby saving wireless network resources.

S705-S707 can refer to the content in S503-S505 in FIG. 5A, and details are not described herein again.

With this embodiment, the terminal 12 can be configured to feed back the HARQ ID to the access network device 11 after the DTX is generated, so that the access network device 11 can accurately locate the data of the DTX and then send the data. The retransmission of DTX data occurs, saving wireless network resources and improving the success rate of data transmission. Also, there is no need to modify the semi-static feedback codebook. In addition, the allocation of the SR resources is flexible, and the access network device 11 can allocate the SR resources according to the current scheduling situation, thereby improving flexibility.

A fifth embodiment of the DTX reporting and the DTX-generating data of the present application may be used in the following description, and may be used in the foregoing first embodiment or the second embodiment for identifying DTX.

S801: The access network device 11 transmits a Preamble for indicating DTX to the terminal 12.

The access network device 11 can transmit a Preamble for indicating DTX to the terminal 12 through an RRC reconfiguration message.

If the first implementation of the DTX is used (FIG. 3A), the Preamble is used to indicate that at least one TB exists in the semi-static HARQ codebook sent by the terminal 12 to the access network device 11, and the TB is retransmitted. Its initial transmission schedule occurs DTX.

The Preamble itself may be an indication for indicating DTX, and the Preamble may also carry information for indicating DTX.

If the second embodiment (FIG. 3B) for identifying the DTX is used, the Preamble is used to indicate that at least one TB exists in the semi-static HARQ codebook sent by the terminal 12 to the access network device 11, and the TB is an initial transmission. And the DTX is scheduled for the initial transmission.

S802: The terminal 12 determines whether DTX has occurred.

S803: The terminal 12 sends a semi-static HARQ codebook to the access network device 11.

S802-S803 can refer to the content in S602-S603 in FIG. 6A, and details are not described herein again.

S804: If DTX occurs, the terminal 12 transmits the information to the access network device 11 by using the Preamble for indicating that DTX is generated on the PRACH channel.

Correspondingly, the access network device 11 performs detection on the PRACH channel, and if detected, indicates that DTX occurs.

S805: The access network device 11 determines the TB that meets the DTX indication.

S806: The access network device 11 sends the data corresponding to the TB corresponding to the DTX indication to the terminal 12 according to the initial transmission manner.

S807: The access network device 11 sends the data corresponding to the TB of the NACK in the semi-static HARQ codebook to the terminal 12 according to the retransmission manner.

S805-S807 can refer to related content in S403-S405 in FIG. 4A, and details are not described herein again.

This embodiment can solve the problem of retransmission failure and improve the success rate of data transmission. Moreover, by allocating the Preamble for indicating DTX, the terminal 12 can be reported to the access network device 11 after detecting the DTX, without The semi-static feedback codebook is modified. In addition, the Preamble allocation is flexible, and the access network device 11 can allocate the Preamble according to the current scheduling situation, thereby improving flexibility.

A sixth embodiment of the DTX reporting and the DTX data generation may be used in the foregoing description, and may be used in the foregoing first or second embodiment for identifying DTX. S901: The access network device 11 sends a Preamble to the terminal 12 for indicating that the scheduling of a HARQ ID occurs DTX.

The Preamble itself may be an indication for indicating that a scheduling of a HARQ ID occurs DTX, or the Preamble may carry information for indicating that a scheduling of a HARQ ID occurs DTX.

The access network device 11 may transmit, to the terminal 12, a Preamble indicating that the scheduling of the HARQ ID occurs DTX through an RRC reconfiguration message.

For example, the access network device 11 sends a Preamble 1 to the terminal 12, and the Preamble 1 is used to indicate whether DTX of the downlink scheduling of the HARQ ID 6 occurs.

The access network device 11 may send multiple Preambles to the terminal 12, which are respectively used to indicate whether a HARQ ID has DTX, and each of the Preambles indicates a different HARQ ID.

For example, the access network device 11 sends the Preamble 1 and the Preamble 2 to the terminal 12, the Preamble 1 is used to indicate whether the downlink scheduling of the HARQ ID 5 is DTX, and the Preamble 2 is used to indicate whether the downlink scheduling of the HARQ ID 6 occurs DTX.

S902: The terminal 12 determines whether DTX of the scheduling of the HARQ ID occurs.

S902 can refer to related content in S703 in FIG. 7, and details are not described herein again.

S903: The terminal 12 sends a semi-static HARQ codebook to the access network device 11.

S903 can refer to related content in S602 in FIG. 6A, and details are not described herein again.

S904: If DTX occurs in the scheduling of the HARQ ID, the Preamble for generating DTX in the scheduling of the HARQ ID is used to transmit information to the access network device 11.

Correspondingly, the access network device 11 performs detection on the PRACH channel. If information is detected, it indicates that the scheduling of the HARQ ID occurs DTX.

If the first embodiment of identifying DTX (Fig. 3A) is employed, for example, scheduling of HARQ ID 6 occurs with DTX, and Preamble 1 is used for the PRACH channel to transmit information to access network device 11.

If the second embodiment (FIG. 3B) for identifying DTX is used, for example, scheduling of HARQ ID 8 occurs with DTX, and Preamble 2 is used for the PRACH channel to transmit information to access network device 11.

S905: The access network device 11 determines the TB that complies with the DTX indication.

S906: The access network device 11 sends the data corresponding to the TB corresponding to the DTX indication to the terminal 12 according to the initial transmission manner.

S907: The access network device 11 sends the data corresponding to the TB of the NACK in the semi-static HARQ codebook to the terminal 12 according to the retransmission manner.

S905-S907 can refer to the content in S503-S505 in FIG. 5A, and details are not described herein again.

With this embodiment, the terminal 12 can be configured to feed back the HARQ ID to the access network device 11 after the DTX is generated, so that the access network device 11 can accurately locate the data of the DTX and then send the data. The retransmission of DTX data occurs, saving wireless network resources and improving the success rate of data transmission. Also, there is no need to modify the semi-static feedback codebook. In addition, the Preamble is more flexible, and the access network device 11 can allocate Preamble according to the current scheduling situation, thereby improving flexibility.

A seventh embodiment of the DTX reporting and the DTX-generating data of the embodiment of the present application will be described below with reference to FIG. 10A, which can be used in the second embodiment of the above-mentioned DTX identification.

S1001: The terminal 12 sends a semi-static HARQ codebook to the access network device 11.

FIG. 10B illustrates a schematic diagram of the semi-static HARQ codebook:

The semi-static HARQ codebook may include 2x bits, and x is an integer greater than or equal to 1, wherein 2x bits correspond to feedback of x TBs, and feedback of each TB occupies 2 bits.

Since the feedback of each TB occupies 2 bits, there are 4 possibilities, respectively 00, or 01, or 10, or 11. Three kinds of four possibilities can be used in the implementation, respectively, that the terminal 12 receives the TB and the CRC check succeeds, or the terminal 12 receives the TB but the CRC check fails, or the terminal 12 determines that the scheduling of the TB occurs DTX.

For example, 10 indicates that the terminal 12 received the TB, but the CRC check failed; 11 indicates that the terminal 12 received the TB and the CRC check succeeded; 00 indicates that the terminal 12 determined that the scheduling of the TB occurred DTX.

As an implementation manner, the access network device 11 and the terminal 12 may configure a bit index of the feedback of each TB in the semi-static HARQ codebook by using an algorithm; the terminal 12 may fill in the corresponding TB feedback according to the algorithm. The bit index sends the semi-static HARQ codebook to the access network device 11. After receiving the semi-static HARQ codebook, the access network device 11 can obtain feedback of each TB through the algorithm.

For example, the access network device 11 and the terminal 12 are configured according to an algorithm. The first bit and the second bit in the semi-static HARQ codebook are used to feed back the TB 3 feedback of the HARQ ID 6, and the third bit and the fourth bit are used. The TB 6, 5th and 6th bits of the feedback HARQ ID 7 are used to feed back the TB9 of the HARQ ID 8. The terminal 12 receives the TB3 of the HARQ ID 6, and the CRC check fails; the terminal 12 receives the TB6 of the HARQ ID 7, and the CRC check succeeds; the terminal 12 determines that the scheduling of the TB9 occurs DTX. Then the semi-static HARQ codebook of the terminal 12 can be as shown in FIG. 10C.

As an implementation manner, the scheduling of each TB default feedback TB in the semi-static HARQ codebook may be DTX. If the terminal 12 receives the TB and the CRC check succeeds, the feedback of the TB is modified, for example, modified to 11, if the terminal 12 receives the TB but fails the CRC check, and modifies the feedback of the TB, for example, to 10, and the terminal 12 determines that the scheduling of the TB occurs DTX, and then maintains the default feedback of the TB.

S1002: After receiving the semi-static HARQ codebook, the access network device 11 determines to schedule a TB in which DTX occurs.

The access network device 11 obtains the scheduling information of the TB according to the TB that is not received by the terminal 12, for example, the scheduling information of the TB may be stored in the access network device 11. If the access network device 11 transmits the TB to the terminal 12 and the DCI corresponding to the TB, it indicates that DTX is generated in the scheduling of the TB.

For example, after receiving the semi-static HARQ codebook, the access network device 11 obtains the feedback of the TB9 as the scheduling occurrence DTX, for example, 00, and the access network device 11 obtains the saved scheduling information, and it is known that the TB9 and the TB9 have been sent to the terminal 12. The DCI, then TB9 is the TB that schedules DTX to occur.

S1003: The access network device 11 sends, to the terminal 12, data corresponding to the TB that schedules the DTX to be generated according to the initial transmission manner.

Here, the access network device 11 can regenerate the DCI of the initial transmission and the initial transmission, and can also use the TB saved by the access network device 11.

For example, the access network device 11 transmits TB9 to the terminal 12 in the manner of initial transmission.

S1004: The access network device 11 sends the data corresponding to the TB of the NACK in the semi-static HARQ codebook to the terminal 12 according to the retransmission manner.

For example, the access network device 11 transmits TB3 to the terminal 12 in a retransmission manner.

When the terminal 12 is initially transmitted, the terminal 12 reports whether DTX is generated in the scheduling, and can be sent to the access network device 11 during the initial transmission, so that the access network device 11 takes measures in time to avoid sending retransmission to the terminal 12, which wastes wireless. The network resource and the access network device 11 can accurately locate the TB that schedules the DTX to be sent to the terminal 12 to solve the problem of retransmission failure and improve the success rate of data transmission.

FIG. 11 is a schematic structural diagram of an access network device 11.

The access network device 11 includes at least one processor 1111, at least one memory 1112, at least one transceiver 1113, at least one network interface 1114, and one or more antennas 1115. The processor 1111, the memory 1112, the transceiver 1113, and the network interface 1114 are connected, for example, via a bus. The antenna 1115 is connected to the transceiver 1113. The network interface 1114 is configured to connect the access network device to other communication devices through a communication link, for example, the access network device is connected to the core network element 101 through the S1 interface. In the embodiment of the present application, the connection may include various types of interfaces, transmission lines, buses, and the like, which are not limited in this embodiment.

The processor in the embodiment of the present application, for example, the processor 1111, may include at least one of the following types: a central processing unit (CPU), a digital signal processor (DSP), a microprocessor, and a microprocessor. Application-Specific Integrated Circuit (ASIC), Microcontroller Unit (MCU), Field Programmable Gate Array (FPGA), or integrated circuit for implementing logic operations . For example, the processor 1111 can be a single-CPU processor or a multi-core processor. The at least one processor 1111 may be integrated in one chip or on a plurality of different chips.

The memory in the embodiment of the present application, such as the memory 1112, may include at least one of the following types: read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory. (random access memory, RAM) or other type of dynamic storage device that can store information and instructions, or can be an electrically erasable programmabler-only memory (EEPROM). In some scenarios, the memory may also be a compact disc read-only memory (CD-ROM) or other optical disc storage, and a disc storage (including a compact disc, a laser disc, a compact disc, a digital versatile disc, a Blu-ray disc, etc.) A disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of an instruction or data structure and that can be accessed by a computer, but is not limited thereto.

The memory 1112 may be independent and connected to the processor 1111. Alternatively, the memory 1112 may also be integrated with the processor 1111, for example, integrated into one chip. The memory 1112 can store the program code for executing the technical solution of the embodiment of the present application, and is controlled by the processor 1111, and the various types of computer program code to be executed can also be regarded as the driver of the processor 1111. For example, the processor 1111 is configured to execute the computer program code stored in the memory 1112, thereby implementing the technical solution in the embodiment of the present application.

The transceiver 1113 can be configured to support receiving or transmitting radio frequency signals between the access network device and the terminal, and the transceiver 1113 can be connected to the antenna 1115. The transceiver 1113 includes a transmitter Tx and a receiver Rx. Specifically, one or more antennas 1115 can receive a radio frequency signal, and a receiver Rx of the transceiver 1113 is configured to receive the radio frequency signal from an antenna and convert the radio frequency signal into a digital baseband signal or a digital intermediate frequency signal, and the number is The baseband signal or digital intermediate frequency signal is provided to the processor 1111 for the processor 1111 to further process the digital baseband signal or the digital intermediate frequency signal, such as demodulation processing and decoding processing. In addition, the transmitter Tx in the transceiver 1113 is further configured to receive the modulated digital baseband signal or digital intermediate frequency signal from the processor 1111, and convert the modulated digital baseband signal or digital intermediate frequency signal into a radio frequency signal, and pass through a Or the plurality of antennas 1115 transmit the radio frequency signals. Specifically, the receiver Rx may selectively perform one or more stages of downmix processing and analog to digital conversion processing on the radio frequency signal to obtain a digital baseband signal or a digital intermediate frequency signal, the downmix processing and the analog to digital conversion processing. The order is adjustable. The transmitter Tx can selectively perform one or more stages of up-mixing processing and digital-to-analog conversion processing on the modulated digital baseband signal or the digital intermediate frequency signal to obtain a radio frequency signal, the upmixing processing and the digital to analog conversion processing. The order of precedence is adjustable. Digital baseband signals and digital intermediate frequency signals can be collectively referred to as digital signals.

The transceiver 1113 implements the transmission of the access network device 11 to the terminal 12 in the first part and/or the second partial solution or the reception of the access network device 11 from the terminal 12. For example, the transceiver 1113 can implement the sending of the DCI to the terminal 12, The terminal 12 transmits the TB, and receives the semi-static feedback codebook transmitted by the terminal 12 and the initial transmission of the data corresponding to the TB corresponding to the DTX indication transmitted to the terminal 12. The processor 1211 can execute a program to implement the first portion and/or the second portion described above. The memory 1112 may store programs or data in the first part and/or the second part scheme described above. For example, the access network device 11 may store scheduling information of the TB transmitted to the terminal 12, and the access network device 11 may save the semi-static codebook. algorithm.

FIG. 12 is a schematic structural diagram of a terminal 12 according to an embodiment of the present application.

The terminal includes at least one processor 1211, at least one transceiver 1212, and at least one memory 1213. The processor 1211, the memory 1213, and the transceiver 1212 are connected. Optionally, the terminal 121 may further include an output device 1214, an input device 1215, and one or more antennas 1216. The antenna 1216 is coupled to the transceiver 1212, and the output device 1214 and the input device 1215 are coupled to the processor 1211.

The transceiver 1212, the memory 1213, and the antenna 1216 can implement similar functions with reference to the related description in FIG.

The processor 1211 may be a baseband processor or a CPU, and the baseband processor and the CPU may be integrated or separated.

The processor 1211 can be used to implement various functions for the terminal, such as for processing communication protocols and communication data, or for controlling the entire terminal device, executing a software program, processing data of the software program, or for assisting completion. Computing processing tasks, such as graphics image processing or audio processing, etc.; or processor 1211 is used to implement one or more of the above functions.

Output device 1214 is in communication with processor 1211 and can display information in a variety of ways. For example, the output device 1214 may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector. Wait. Input device 1215 is in communication with processor 1211 and can accept user input in a variety of ways. For example, input device 1215 can be a mouse, keyboard, touch screen device, or sensing device, and the like.

The transceiver 1212 implements the transmission of the terminal 12 to the access network device 11 or the reception of the terminal 12 from the access network device 11 in the first partial and/or second partial scheme described above. For example, the transceiver 1212 may implement receiving DCI from the terminal 12, from The terminal 12 receives the TB, transmits a semi-static feedback codebook to the slave terminal 12, and transmits an initial transmission of data corresponding to the TB corresponding to the DTX indication from the access network device 11. The processor 1211 can execute a program to implement the first portion and/or the second portion described above. For example, the processor 1211 can determine whether the current TB is a retransmission by running a program, and the initial transmission schedule occurs DTX. The memory 1213 may store the program or data in the first part and/or the second part scheme described above. For example, the memory 1213 may be in the semi-static HARQ codebook, if the TB in the feedback of the semi-static codebook is received, the TB is saved. information.

A device 1000 provided by an embodiment of the present application is described below. As shown in Figure 13:

The device 1000 includes a processing unit 1001 and a communication unit 1002. Optionally, the device further includes a storage unit 1002. The processing unit 1001, the communication unit 1002, and the storage unit 1002 are connected by a communication bus.

The communication unit 1002 may be a device having a transceiving function for communicating with other network devices or communication networks.

The storage unit 1002 may include one or more memories, which may be devices for storing programs or data.

The storage unit 1002 can exist independently and is connected to the processing unit 1001 via a communication bus. The storage unit can also be integrated with the processing unit 1001.

Device 1000 can be used in a network device, circuit, hardware component, or chip.

The device 1000 can be the terminal 12 in the embodiment of the present application. A schematic diagram of the terminal 12 can be as shown in FIG. Alternatively, the communication unit 1003 of the device 1000 may include an antenna and a transceiver of the terminal, such as the antenna 1216 and the transceiver 1212 in FIG. Alternatively, the communication unit 1003 may further include an output device and an input device, such as the output device 1214 and the input device 1215 in FIG.

The device 1000 may be a chip in the terminal 12 in the embodiment of the present application. The communication unit 1003 may be an input or output interface, a pin or a circuit, or the like. Alternatively, the storage unit may store computer execution instructions of the method on the terminal side to cause the processing unit 1001 to execute the method on the terminal side in the above embodiment. The storage unit 1002 may be a register, a cache or a RAM, etc., and the storage unit 1002 may be integrated with the processing unit 1001; the storage unit 1002 may be a ROM or other type of static storage device that can store static information and instructions, and the storage unit 1002 may Processing unit 1001 is independent. Alternatively, as the wireless communication technology evolves, the transceiver can be integrated on the device 1000, for example, the communication unit 1003 integrates the transceiver 1212.

When the device 1000 is the terminal 12 or the chip in the terminal 12 in the embodiment of the present application, the device 1000 can implement the method performed by the terminal 12 in the above embodiment.

The device 1000 may be the access network device 11 in the embodiment of the present application. A schematic diagram of the access network device 11 can be as shown in FIG. Alternatively, the communication unit 1003 of the device 1000 may include an antenna and a transceiver of the base station, such as the antenna 1115 and the transceiver 1113 in FIG. Communication unit 1003 may also include a network interface of a base station, such as network interface 1114 in FIG.

The device 1000 may be a chip in the access network device 11 in the embodiment of the present application. The communication unit 1003 may be an input or output interface, a pin or a circuit, or the like. Optionally, the storage unit may store a computer execution instruction of the method on the access network device 11 side, so that the processing unit 1001 performs the method on the access network device 11 side in the foregoing embodiment. The storage unit 1002 may be a register, a cache or a RAM, etc., and the storage unit 1002 may be integrated with the processing unit 1001; the storage unit 1002 may be a ROM or other type of static storage device that can store static information and instructions, and the storage unit 1002 may Processing unit 1001 is independent. Optionally, as the wireless communication technology develops, the transceiver can be integrated on the device 1000. For example, the communication unit 1003 integrates the transceiver 1113 and the network interface 1114.

When the device 1000 is a chip in a base station or a base station in the embodiment of the present application, the method performed by the base station in the foregoing embodiment may be implemented.

The embodiment of the present application further provides a device, which includes a functional unit that implements each step of the terminal side of the above method.

The embodiment of the present application further provides an apparatus, where the apparatus includes a functional unit that implements each step of the method accessing the network device side.

A plurality of the embodiments of the present application may refer to two, three or more. "A/B" may represent one or more of A, B, A, and B, A, or B.

The embodiment of the present application also provides a computer readable storage medium. The methods described in the above embodiments may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. If implemented in software, the functions may be stored on or transmitted as one or more instructions or code on a computer readable medium. The computer readable medium can include computer storage media and communication media, and can also include any medium that can transfer a computer program from one place to another. A storage medium may be any available media that can be accessed by a computer.

As an alternative design, the computer readable medium may comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage device, or any other medium that can be used for carrying or in an instruction or data structure. The form of the program stores the required program code and is accessible by the computer. Also, any connection is properly termed a computer-readable medium. For example, if you use coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) or wireless technology (such as infrared, radio and microwave) to transfer software from a website, server or other remote source, then coaxial cable, fiber optic cable , twisted pair, DSL or wireless technologies such as infrared, radio and microwave are included in the definition of the medium. Disk and disc as used herein include compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk and blu-ray disc, wherein the disc usually reproduces data magnetically, and the disc optically reproduces data using a laser. Combinations of the above should also be included within the scope of computer readable media.

The embodiment of the present application also provides a computer program product. The methods described in the above embodiments may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. If implemented in software, it may be implemented in whole or in part in the form of a computer program product. A computer program product includes one or more computer instructions. When the above computer program instructions are loaded and executed on a computer, the processes or functions described in the above method embodiments are generated in whole or in part. The above computer may be a general purpose computer, a special purpose computer, a computer network, a network device, a user equipment, or other programmable device.

The specific embodiments of the present invention have been described in detail with reference to the preferred embodiments of the present invention. The scope of the protection, any modifications, equivalent substitutions, improvements, etc., which are made on the basis of the technical solutions of the present invention, are included in the scope of the present invention.

Claims

An information feedback method, characterized in that the method comprises:

Receiving a plurality of transport blocks TB;

Transmitting, by the access network device, the semi-static hybrid automatic repeat request HARQ codebook corresponding to the multiple TBs;

If the initial transmission of the first TB of the multiple TBs occurs, the semi-static HARQ codebook includes indication information, where the indication information is used to indicate that there is a DTX in the initial transmission of the multiple TBs. The TB or the first transmission of the first TB has DTX.
An information feedback method, characterized in that the method comprises:

Receiving multiple TBs;

Transmitting, by the access network device, the semi-static HARQ codebook corresponding to the multiple TBs;

If the first transmission of the first TB of the multiple TBs is DTX, the indication information is sent to the access network device, where the indication information is used to indicate that there is a DTX in the initial transmission of the multiple TBs. The TB or the first transmission of the first TB has DTX.
The method according to claim 2, wherein the sending the indication information to the access network device comprises:

The indication information is sent to the access network device by using the first SR resource.
The method according to claim 2, wherein the sending the indication information to the access network device comprises:

Sending, to the access network device, a first preamble corresponding to the indication information.
The method according to any one of claims 1-4, wherein the indication information comprises an identifier of a first HARQ process, and the first TB is a TB corresponding to the first HARQ process.
The method according to any one of claims 1-5, wherein if the initial transmission of the first TB of the plurality of TBs occurs DTX, the method comprises:

If the modulation coding scheme MCS corresponding to the first TB of the plurality of TBs or the redundancy version RV corresponding to the first TB indicates retransmission, and the new data corresponding to the first TB indicates that the NDI is reversed, the A TB has occurred in one TB.
The method according to any one of claims 1 to 6, wherein the method further comprises:

Receiving, from the access network device, an initial transmission of data corresponding to the initial transmission of the first TB.
An information feedback method, characterized in that the method comprises:

Sending a plurality of transport blocks TB to the terminal;

Receiving, by the terminal, a semi-static hybrid automatic repeat request HARQ codebook corresponding to the multiple TBs;

The semi-static HARQ codebook includes indication information, and the indication information is used to indicate that there is a TB in which the DTX is initially transmitted in the plurality of TBs or a DTX occurs in the initial transmission of the first TB.
An information feedback method, characterized in that the method comprises:

Sending a plurality of transport blocks TB to the terminal;

Receiving, by the terminal, a semi-static hybrid automatic repeat request HARQ codebook corresponding to the multiple TBs;

Receiving indication information from the terminal, the indication information is used to indicate that there is a TB in which the DTX is initially transmitted in the plurality of TBs, or DTX is generated in the initial transmission of the first TB.
The method according to claim 9, wherein the receiving the indication information from the access network device comprises:

The indication information is received from the terminal by the first SR resource.
The method according to claim 9, wherein the receiving the indication information from the access network device comprises:

Receiving, from the terminal, a first preamble corresponding to the indication information.
The method according to any one of claims 9-11, wherein the indication information comprises an identifier of a first HARQ process, and the first TB is a TB corresponding to the first HARQ process.
The method according to any one of claims 9 to 12, wherein if the initial transmission of the first TB of the plurality of TBs occurs DTX, the method comprises:

If the modulation coding scheme MCS corresponding to the first TB of the plurality of TBs or the redundancy version RV corresponding to the first TB indicates retransmission, and the new data corresponding to the first TB indicates that the NDI is reversed, the A TB has occurred in one TB.
The method according to any one of claims 9 to 13, wherein the method further comprises:

Sending an initial transmission of data corresponding to the initial transmission of the first TB to the terminal.
An apparatus, comprising: a memory for storing a computer program, the processor for calling and running the computer program from a memory, such that the apparatus performs any of claims 1 to 14. A method as described.
A computer storage medium storing a program, characterized in that the program is for implementing the method according to any one of claims 1 to 14.