阅读说明：本技术 Harq反馈方法、装置及可读存储介质 (HARQ feedback method, device and readable storage medium ) 是由 牟勤 于 2019-08-13 设计创作，主要内容包括：本公开揭示了一种HARQ反馈方法,属于无线通信技术领域。所述方法由基站执行,所述方法包括：接收到至少一个终端发送的第一随机接入消息Msg.A后,向至少一个终端返回第二随机接入消息Msg.B；Msg.B用于指示至少一个终端中各个HARQ反馈终端各自的反馈参数；各个HARQ反馈终端各自的HARQ反馈资源不同；基站在各个重传终端各自的HARQ反馈资源上,接收各个重传终端各自针对Msg.B发送的HARQ反馈。本公开通过基站向至少一个终端返回的Msg.B中指示各个HARQ反馈终端各自的反馈参数,减少了各个需要进行HARQ反馈的终端使用相同HARQ反馈资源的碰撞情况,提高了终端对Msg.B的反馈效率。(The disclosure discloses a HARQ feedback method, belonging to the technical field of wireless communication. The method is performed by a base station, and the method comprises: after receiving a first random access message msg.A sent by at least one terminal, returning a second random access message msg.B to the at least one terminal; the Msg.B is used for indicating the feedback parameters of all HARQ feedback terminals in at least one terminal; the HARQ feedback resources of all the HARQ feedback terminals are different; and the base station receives HARQ feedback sent by each retransmission terminal aiming at the msg.B on the HARQ feedback resource of each retransmission terminal. According to the method and the device, the feedback parameters of the HARQ feedback terminals are indicated in the msg.B returned to at least one terminal by the base station, so that the collision condition that the terminals needing HARQ feedback use the same HARQ feedback resource is reduced, and the feedback efficiency of the terminals to the msg.B is improved.)

1. A HARQ feedback method, wherein the method is performed by a base station, the method comprising:

after receiving a first random access message msg.A sent by at least one terminal, returning a second random access message msg.B to the at least one terminal; the msg.B is used for indicating each HARQ feedback resource of each hybrid automatic repeat request HARQ feedback terminal in the at least one terminal; and the HARQ feedback resources of the HARQ feedback terminals are different;

and receiving HARQ feedback sent by each HARQ feedback terminal aiming at the msg.B on each HARQ feedback resource of each HARQ feedback terminal.

2. The method according to claim 1, wherein the returning of the second random access message msg.b to the at least one terminal comprises:

returning the msg.B containing the PUCCH parameters of the HARQ feedback terminals to the at least one terminal; the PUCCH parameters of different terminals in each HARQ feedback terminal are different;

wherein the PUCCH parameters comprise a time parameter k and a PUCCH resource indication delta_PRI(ii) a The time parameter k is used for calculating the sending time point of HARQ feedback, and the PUCCH resource indicates delta_PRIThe number of the PUCCH resource used for sending the HARQ feedback in the PUCCH resource set is calculated; wherein the PUCCH resource set is composed ofAnd the candidate PUCCH resource set configured by the higher layer signaling.

3. The method of claim 2,

the PUCCH parameters of the HARQ feedback terminals comprise a time parameter k shared by the HARQ feedback terminals and PUCCH resource indication delta of the HARQ feedback terminals_PRI；

Alternatively, the first and second electrodes may be,

the PUCCH parameters of the HARQ feedback terminals comprise time parameters k of the HARQ feedback terminals and PUCCH resource indication delta shared by the HARQ feedback terminals_PRI；

Alternatively, the first and second electrodes may be,

the respective PUCCH parameters of the HARQ feedback terminals comprise respective time parameters k of the HARQ feedback terminals and respective PUCCH resource indications delta of the HARQ feedback terminals_PRI。

4. The method according to claim 3, wherein when the respective PUCCH parameter of each HARQ feedback terminal comprises a time parameter k common to each HARQ feedback terminal, and wherein the respective PUCCH resource indication Δ of each HARQ feedback terminal is_PRIWhen the temperature of the water is higher than the set temperature,

the time parameter k shared by each HARQ feedback terminal is carried in a physical downlink control channel PDCCH of the Msg.B;

the respective PUCCH resource indication delta of each HARQ feedback terminal_PRIAnd the dedicated information of each HARQ feedback terminal is carried in the physical downlink shared channel PDSCH of the msg.b.

5. The method according to claim 3, wherein when the respective PUCCH parameters of the HARQ feedback terminals comprise a time parameter k of the respective HARQ feedback terminal and a PUCCH resource indication Δ shared by the respective HARQ feedback terminals_PRIWhen the temperature of the water is higher than the set temperature,

PUCCH resource indication delta shared by all HARQ feedback terminals_PRIThe Physical Downlink Control Channel (PDCCH) is carried in the Msg.B;

and the respective time parameter k of each HARQ feedback terminal is carried in the respective dedicated information of each HARQ feedback terminal, and the respective dedicated information of each HARQ feedback terminal is carried in the physical downlink shared channel PDSCH of the Msg.B.

6. The method according to claim 3, wherein when the respective PUCCH parameters of the HARQ feedback terminals comprise a time parameter k of the respective HARQ feedback terminal, and a PUCCH resource indication delta of the respective HARQ feedback terminal_PRIWhen the current is over;

the respective time parameter k of each HARQ feedback terminal and the respective PUCCH resource indication delta of each HARQ feedback terminal_PRIAnd the dedicated information of each HARQ feedback terminal is carried in the physical downlink shared channel PDSCH of the msg.b.

7. The method as claimed in claim 1, wherein before receiving HARQ feedback sent by each HARQ feedback terminal for the msg.b on its respective HARQ feedback resource, further comprising:

acquiring respective PUCCH resource offset information of each HARQ feedback terminal according to offset configuration information, wherein the PUCCH resource offset information is used for indicating the offset of PUCCH resources used for sending HARQ feedback relative to reference PUCCH resources, and the reference PUCCH resources are indicated by delta according to PUCCH resources_PRICalculating PUCCH resources;

and determining the HARQ feedback resources of the HARQ feedback terminals according to the PUCCH resource offset information of the HARQ feedback terminals.

8. The method according to claim 7, wherein the offset configuration information includes the PUCCH resource offset information corresponding to each preamble sequence for random access;

the obtaining the PUCCH resource offset information of each HARQ feedback terminal according to the offset configuration information includes:

and inquiring the offset configuration information according to a preamble sequence contained in the msg.A sent by each HARQ feedback terminal to obtain the PUCCH resource offset information of each HARQ feedback terminal.

9. The method according to claim 7, wherein the msg.b includes information specific to each of the at least one terminal; the offset configuration information comprises the PUCCH resource offset information corresponding to the position of the exclusive information in the msg.B;

the obtaining the PUCCH resource offset information of each HARQ feedback terminal according to the offset configuration information includes:

inquiring the offset configuration information according to the position of the dedicated information of each HARQ feedback terminal in the msg.B, and obtaining the PUCCH resource offset information of each HARQ feedback terminal.

10. The method according to any one of claims 1 to 9, wherein the msg.a comprises a preamble sequence for random access and a PUSCH;

and each HARQ feedback terminal is a terminal which detects the corresponding leader sequence by the base station and successfully analyzes the content in the corresponding PUSCH.

11. The method according to claim 1, wherein the at least one terminal further comprises each retransmission terminal, and each retransmission terminal is a terminal which has detected the corresponding preamble sequence by the base station and has not successfully parsed out the content in the corresponding PUSCH; the msg.B also indicates respective retransmission resources of the retransmission terminals; the method further comprises the following steps:

and receiving the PUSCH in the msg.A of each retransmission terminal, which is retransmitted by each retransmission terminal, on the retransmission resource of each retransmission terminal.

12. A HARQ feedback method, wherein the method is performed by a target terminal, the method comprising:

sending a first random access message msg.A to a base station;

receiving a second random access message msg.B returned by the base station, wherein the msg.B is used for indicating each HARQ feedback resource of each hybrid automatic repeat request HARQ feedback terminal in the at least one terminal; and the HARQ feedback resources of the HARQ feedback terminals are different;

and when the target terminal is any one of the HARQ feedback terminals, sending HARQ feedback to the base station.

13. The method according to claim 12, wherein the msg.b includes PUCCH parameters for each HARQ feedback terminal, and wherein the PUCCH parameters for different ones of the HARQ feedback terminals are different;

before sending HARQ feedback to the base station, the method further includes:

extracting the PUCCH parameters of the target terminal from the Msg.B;

acquiring HARQ feedback resources of the target terminal according to the PUCCH parameters of the target terminal;

wherein the PUCCH parameters comprise a time parameter k and a PUCCH resource indication delta_PRI(ii) a The time parameter k is used for calculating the sending time point of HARQ feedback, and the PUCCH resource indicates delta_PRIAnd the terminal is used for calculating the number of the PUCCH resource used for sending the HARQ feedback in a PUCCH resource set which is a candidate PUCCH resource set configured by higher layer signaling.

14. The method of claim 13,

the PUCCH parameters of the HARQ feedback terminals respectively comprise a time parameter k shared by the HARQ feedback terminals, andindividual PUCCH resource indication Δ for individual HARQ feedback terminals_PRI；

Alternatively, the first and second electrodes may be,

the PUCCH parameters of the HARQ feedback terminals comprise time parameters k of the HARQ feedback terminals and PUCCH resource indication delta shared by the HARQ feedback terminals_PRI；

Alternatively, the first and second electrodes may be,

the respective PUCCH parameters of the HARQ feedback terminals comprise respective time parameters k of the HARQ feedback terminals and respective PUCCH resource indications delta of the HARQ feedback terminals_PRI。

15. The method according to claim 14, wherein when the respective PUCCH parameter for each HARQ feedback terminal includes a time parameter k common to the HARQ feedback terminals, and wherein the respective PUCCH resource indicator Δ for each HARQ feedback terminal is_PRIWhen the temperature of the water is higher than the set temperature,

the time parameter k shared by each HARQ feedback terminal is carried in a physical downlink control channel PDCCH of the Msg.B;

the respective PUCCH resource indication delta of each HARQ feedback terminal_PRIAnd the dedicated information of each HARQ feedback terminal is carried in the physical downlink shared channel PDSCH of the msg.b.

16. The method according to claim 14, wherein when the PUCCH parameter for each HARQ feedback terminal includes time parameter k for each HARQ feedback terminal, and PUCCH resource indication Δ shared by each HARQ feedback terminal_PRIWhen the temperature of the water is higher than the set temperature,

PUCCH resource indication delta shared by all HARQ feedback terminals_PRIThe Physical Downlink Control Channel (PDCCH) is carried in the Msg.B;

and the respective time parameter k of each HARQ feedback terminal is carried in the respective dedicated information of each HARQ feedback terminal, and the respective dedicated information of each HARQ feedback terminal is carried in the physical downlink shared channel PDSCH of the Msg.B.

17. The method according to claim 14, wherein when the respective PUCCH parameter for each HARQ feedback terminal comprises a time parameter k for each HARQ feedback terminal, and wherein the PUCCH resource indicator Δ for each HARQ feedback terminal is_PRIWhen the current is over;

the respective time parameter k of each HARQ feedback terminal and the respective PUCCH resource indication delta of each HARQ feedback terminal_PRIAnd the dedicated information of each HARQ feedback terminal is carried in the physical downlink shared channel PDSCH of the msg.b.

18. The method of claim 12, wherein before sending HARQ feedback to the base station on the HARQ feedback resource of the target terminal, further comprising:

acquiring PUCCH resource offset information of the target terminal according to offset configuration information, wherein the PUCCH resource offset information is used for indicating the offset of PUCCH resources used for sending HARQ feedback relative to reference PUCCH resources, and the reference PUCCH resources are indicated by delta according to PUCCH resources_PRICalculating PUCCH resources;

and determining the HARQ feedback resource of the target terminal according to the PUCCH resource offset information of the target terminal.

19. The method according to claim 18, wherein the offset configuration information includes the PUCCH resource offset information corresponding to each preamble sequence for random access;

the acquiring the PUCCH resource offset information of the target terminal according to the offset configuration information includes:

and inquiring the offset configuration information according to a preamble sequence contained in the msg.A sent by the target terminal to obtain the PUCCH resource offset information of the target terminal.

20. The method according to claim 18, wherein the msg.b includes information specific to each of the at least one terminal; the offset configuration information comprises the PUCCH resource offset information corresponding to the position of the exclusive information in the msg.B;

the acquiring the PUCCH resource offset information of the target terminal according to the offset configuration information includes:

and inquiring the offset configuration information according to the position of the exclusive information of the target terminal in the msg.B, and obtaining the PUCCH resource offset information of the target terminal.

21. The method according to any one of claims 12 to 20, wherein the msg.a comprises a preamble sequence for random access and a PUSCH;

and each HARQ feedback terminal is a terminal which detects the corresponding leader sequence by the base station and successfully analyzes the content in the corresponding PUSCH.

22. The method according to claim 12, wherein the msg.b is further configured to indicate retransmission resources of each retransmission terminal of the at least one terminal, wherein each retransmission terminal is a terminal that the base station detected the corresponding preamble sequence and did not successfully parse out the content in the corresponding PUSCH; the method further comprises the following steps:

and when the target terminal is any one of the retransmission terminals, retransmitting the PUSCH in the msg.A on retransmission resources of the target terminal.

23. An HARQ feedback apparatus, wherein the apparatus is used in a base station, and wherein the apparatus comprises:

the access message returning module is used for returning a second random access message msg.B to at least one terminal after receiving a first random access message msg.A sent by the at least one terminal; the msg.B is used for indicating each HARQ feedback resource of each hybrid automatic repeat request HARQ feedback terminal in the at least one terminal; and the HARQ feedback resources of the HARQ feedback terminals are different;

a retransmission feedback receiving module, configured to receive, on the HARQ feedback resource of each HARQ feedback terminal, HARQ feedback sent by each HARQ feedback terminal for the msg.b.

24. The apparatus of claim 23, wherein the access message returning module is configured to,

returning the msg.B containing the PUCCH parameters of the HARQ feedback terminals to the at least one terminal; the PUCCH parameters of different terminals in each HARQ feedback terminal are different;

wherein the PUCCH parameters comprise a time parameter k and a PUCCH resource indication delta_PRI(ii) a The time parameter k is used for calculating the sending time point of HARQ feedback, and the PUCCH resource indicates delta_PRIThe number of the PUCCH resource used for sending the HARQ feedback in the PUCCH resource set is calculated; wherein the PUCCH resource set is a candidate PUCCH resource set configured by higher layer signaling.

25. The apparatus of claim 24,

the PUCCH parameters of the HARQ feedback terminals comprise a time parameter k shared by the HARQ feedback terminals and PUCCH resource indication delta of the HARQ feedback terminals_PRI；

Alternatively, the first and second electrodes may be,

the PUCCH parameters of the HARQ feedback terminals comprise time parameters k of the HARQ feedback terminals and PUCCH resource indication delta shared by the HARQ feedback terminals_PRI；

Alternatively, the first and second electrodes may be,

the respective PUCCH parameters of the HARQ feedback terminals comprise respective time parameters k of the HARQ feedback terminals and respective PUCCH resource indications delta of the HARQ feedback terminals_PRI。

26. The apparatus of claim 24, wherein the PUCCH parameter for each HARQ feedback terminal comprises a time parameter k common to the HARQ feedback terminals, and wherein the PUCCH resource indicator Δ for each HARQ feedback terminal is_PRIWhen the temperature of the water is higher than the set temperature,

the time parameter k shared by each HARQ feedback terminal is carried in a physical downlink control channel PDCCH of the Msg.B;

the respective PUCCH resource indication delta of each HARQ feedback terminal_PRIAnd the dedicated information of each HARQ feedback terminal is carried in the physical downlink shared channel PDSCH of the msg.b.

27. The apparatus of claim 24, wherein the PUCCH resource indicator Δ for each HARQ feedback terminal comprises k, and Δ for each PUCCH shared by the HARQ feedback terminals_PRIWhen the temperature of the water is higher than the set temperature,

PUCCH resource indication delta shared by all HARQ feedback terminals_PRIThe Physical Downlink Control Channel (PDCCH) is carried in the Msg.B;

and the respective time parameter k of each HARQ feedback terminal is carried in the respective dedicated information of each HARQ feedback terminal, and the respective dedicated information of each HARQ feedback terminal is carried in the physical downlink shared channel PDSCH of the Msg.B.

28. The apparatus of claim 24, wherein the respective PUCCH parameter for each HARQ feedback terminal comprises a time parameter k for each HARQ feedback terminal, and wherein the respective PUCCH resource indicator Δ for each HARQ feedback terminal is_PRIWhen the current is over;

the respective time parameter k of each HARQ feedback terminal and the respective PUCCH resource indication delta of each HARQ feedback terminal_PRICarried in the respective dedicated information of each HARQ feedback terminal, the respective dedicated information of each HARQ feedback terminalAnd carrying information in the Physical Downlink Shared Channel (PDSCH) of the Msg.B.

29. The apparatus of claim 23, further comprising: the device comprises an offset information acquisition module and a feedback resource determination module;

the offset information obtaining module is configured to obtain PUCCH resource offset information of each HARQ feedback terminal according to offset configuration information before the retransmission feedback receiving module receives HARQ feedback, which is sent by each HARQ feedback terminal for the msg.b, on the HARQ feedback resource of each HARQ feedback terminal, where the PUCCH resource offset information is used to indicate an offset of a PUCCH resource used for sending HARQ feedback with respect to a reference PUCCH resource, and the reference PUCCH resource is indicated by a PUCCH resource indicator Δ |_PRICalculating PUCCH resources;

and the feedback resource determining module is used for determining the HARQ feedback resources of the HARQ feedback terminals according to the PUCCH resource offset information of the HARQ feedback terminals.

30. The apparatus according to claim 29, wherein the offset configuration information includes PUCCH resource offset information corresponding to each preamble sequence for random access;

the offset information obtaining module is further configured to,

and inquiring the offset configuration information according to a preamble sequence contained in the msg.A sent by each HARQ feedback terminal to obtain the PUCCH resource offset information of each HARQ feedback terminal.

31. The apparatus according to claim 29, wherein the msg.b comprises information specific to each of the at least one terminal; the offset configuration information comprises the PUCCH resource offset information corresponding to the position of the exclusive information in the msg.B;

the offset information obtaining module is further configured to,

inquiring the offset configuration information according to the position of the dedicated information of each HARQ feedback terminal in the msg.B, and obtaining the PUCCH resource offset information of each HARQ feedback terminal.

32. The apparatus according to any of claims 23-31, wherein the msg.a comprises a preamble sequence for random access and a PUSCH;

and each HARQ feedback terminal is a terminal which detects the corresponding leader sequence by the base station and successfully analyzes the content in the corresponding PUSCH.

33. The apparatus of claim 23, wherein the at least one terminal further comprises each retransmission terminal, and wherein each retransmission terminal is a terminal that the base station detects the corresponding preamble sequence and fails to successfully parse the content in the corresponding PUSCH; the msg.B also indicates respective retransmission resources of the retransmission terminals; the device further comprises:

a retransmission information receiving module, configured to receive, on respective retransmission resources of each retransmission terminal, a PUSCH in an msg.a of each retransmission terminal that is retransmitted by each retransmission terminal; the second terminal is any one of the retransmission terminals.

34. An HARQ feedback apparatus, wherein the method is performed by a target terminal, and wherein the method comprises:

the first access message sending module is used for sending a first random access message msg.A to the base station;

a second access message receiving module, configured to receive a second random access message msg.b returned by the base station, where the msg.b is used to indicate HARQ feedback resources of each HARQ feedback terminal in the at least one terminal; and the HARQ feedback resources of the HARQ feedback terminals are different;

a feedback module, configured to send HARQ feedback to the base station when the target terminal is any one of the HARQ feedback terminals.

35. The apparatus of claim 34, wherein the msg.b includes PUCCH parameters for each HARQ feedback terminal, and wherein the PUCCH parameters for different ones of the HARQ feedback terminals are different;

the device further comprises: the device comprises a parameter extraction module and a feedback resource acquisition module;

the parameter extraction module is configured to extract the PUCCH parameter of the target terminal from the msg.b before the feedback module sends HARQ feedback to the base station on the HARQ feedback resource of the target terminal;

the feedback resource obtaining module is configured to obtain HARQ feedback resources of the target terminal according to the PUCCH parameter of the target terminal;

wherein the PUCCH parameters comprise a time parameter k and a PUCCH resource indication delta_PRI(ii) a The time parameter k is used for calculating the sending time point of HARQ feedback, and the PUCCH resource indicates delta_PRIAnd the terminal is used for calculating the number of the PUCCH resource used for sending the HARQ feedback in a PUCCH resource set which is a candidate PUCCH resource set configured by higher layer signaling.

36. The apparatus of claim 35,

the PUCCH parameters of the HARQ feedback terminals comprise a time parameter k shared by the HARQ feedback terminals and PUCCH resource indication delta of the HARQ feedback terminals_PRI；

Alternatively, the first and second electrodes may be,

the PUCCH parameters of the HARQ feedback terminals comprise time parameters k of the HARQ feedback terminals and PUCCH resource indication delta shared by the HARQ feedback terminals_PRI；

Alternatively, the first and second electrodes may be,

the PUCCH parameters of the HARQ feedback terminals comprise time parameters k of the HARQ feedback terminals and time parameters k of the HARQ feedback terminalsPUCCH resource indication Δ_PRI。

37. The apparatus of claim 36, wherein the PUCCH parameter for each HARQ feedback terminal comprises a time parameter k common to the HARQ feedback terminals, and wherein the PUCCH resource indicator Δ for each HARQ feedback terminal is_PRIWhen the temperature of the water is higher than the set temperature,

the time parameter k shared by each HARQ feedback terminal is carried in a physical downlink control channel PDCCH of the Msg.B;

the respective PUCCH resource indication delta of each HARQ feedback terminal_PRIAnd the dedicated information of each HARQ feedback terminal is carried in the physical downlink shared channel PDSCH of the msg.b.

38. The apparatus of claim 36, wherein when the PUCCH parameter for each HARQ feedback terminal comprises time parameter k for each HARQ feedback terminal, and PUCCH resource indication Δ shared by each HARQ feedback terminal_PRIWhen the temperature of the water is higher than the set temperature,

PUCCH resource indication delta shared by all HARQ feedback terminals_PRIThe Physical Downlink Control Channel (PDCCH) is carried in the Msg.B;

and the respective time parameter k of each HARQ feedback terminal is carried in the respective dedicated information of each HARQ feedback terminal, and the respective dedicated information of each HARQ feedback terminal is carried in the physical downlink shared channel PDSCH of the Msg.B.

39. The apparatus of claim 36, wherein the respective PUCCH parameter for each HARQ feedback terminal comprises a time parameter k for each HARQ feedback terminal, and wherein the respective PUCCH resource indicator Δ for each HARQ feedback terminal is_PRIWhen the current is over;

the respective time parameter k of each HARQ feedback terminal and the respective PUCCH resource indication delta of each HARQ feedback terminal_PRIAnd the dedicated information of each HARQ feedback terminal is carried in the physical downlink shared channel PDSCH of the msg.b.

40. The apparatus of claim 34, further comprising: the device comprises an offset information acquisition module and a feedback resource determination module;

the offset information obtaining module is configured to obtain PUCCH resource offset information of the target terminal according to offset configuration information before the feedback module sends the HARQ feedback to the base station on the HARQ feedback resource of the target terminal, where the PUCCH resource offset information is used to indicate an offset of a PUCCH resource used for sending the HARQ feedback with respect to a reference PUCCH resource, and the reference PUCCH resource indicates Δ according to the PUCCH resource_PRICalculating PUCCH resources;

and the feedback resource determining module is used for determining the HARQ feedback resource of the target terminal according to the PUCCH resource offset information of the target terminal.

41. The apparatus according to claim 40, wherein the offset configuration information includes the PUCCH resource offset information corresponding to each preamble sequence for random access;

the offset information obtaining module is further configured to,

and inquiring the offset configuration information according to a preamble sequence contained in the msg.A sent by the target terminal to obtain the PUCCH resource offset information of the target terminal.

42. The apparatus according to claim 40, wherein the Msg.B comprises information specific to each of the at least one terminal; the offset configuration information comprises the PUCCH resource offset information corresponding to the position of the exclusive information in the msg.B;

the offset information obtaining module is further configured to,

and inquiring the offset configuration information according to the position of the exclusive information of the target terminal in the msg.B, and obtaining the PUCCH resource offset information of the target terminal.

43. The apparatus according to any of the claims 34-42, wherein the Msg.A comprises a preamble sequence for random access and a PUSCH;

and each HARQ feedback terminal is a terminal which detects the corresponding leader sequence by the base station and successfully analyzes the content in the corresponding PUSCH.

44. The apparatus of claim 34, wherein the msg.b is further configured to indicate retransmission resources of each retransmission terminal of the at least one terminal, wherein each retransmission terminal is a terminal that the base station detected the corresponding preamble sequence and did not successfully parse out the content in the corresponding PUSCH; the method further comprises the following steps:

and a retransmission information sending module, configured to, when the target terminal is any one of the retransmission terminals, resend the PUSCH in the msg.a on retransmission resources of the target terminal.

45. An HARQ feedback apparatus, wherein the apparatus is used in a base station, and wherein the apparatus comprises:

a processor;

a memory for storing executable instructions of the processor;

wherein the processor is configured to:

after receiving a first random access message msg.A sent by at least one terminal, returning a second random access message msg.B to the at least one terminal; the msg.B is used for indicating each HARQ feedback resource of each hybrid automatic repeat request HARQ feedback terminal in the at least one terminal; and the HARQ feedback resources of the HARQ feedback terminals are different;

and receiving HARQ feedback sent by each HARQ feedback terminal aiming at the msg.B on each HARQ feedback resource of each HARQ feedback terminal.

46. An HARQ feedback apparatus, wherein the apparatus is used in a target terminal, and wherein the apparatus comprises:

a processor;

a memory for storing executable instructions of the processor;

wherein the processor is configured to:

sending a first random access message msg.A to a base station;

receiving a second random access message msg.B returned by the base station, wherein the msg.B is used for indicating each HARQ feedback resource of each hybrid automatic repeat request HARQ feedback terminal in the at least one terminal; and the HARQ feedback resources of the HARQ feedback terminals are different;

and when the target terminal is any one of the HARQ feedback terminals, sending HARQ feedback to the base station.

47. A computer-readable storage medium containing executable instructions that are invoked by a processor in a base station to implement the HARQ feedback method of any of the preceding claims 1 to 11.

48. A computer-readable storage medium containing executable instructions that are invoked by a processor in a terminal to implement the HARQ feedback method of any of the preceding claims 12 to 22.