Information sending and receiving method, sending equipment and receiving equipment

文档序号：117960 发布日期：2021-10-19 浏览：12次中文

阅读说明：本技术 信息发送、接收方法及发送设备和接收设备 (Information sending and receiving method, sending equipment and receiving equipment ) 是由沈天珺赵丽刘龙山赵锐于 2020-04-10 设计创作，主要内容包括：本发明提供了一种信息发送、接收方法及发送设备和接收设备,其中信息发送方法包括：通过第一发送资源盲重传目标TB传输块；获取接收端发送的表征目标传输块接收状态的反馈信息；在反馈信息为目标传输块接收失败的情况下,根据第二发送资源和混合自动重传请求HARQ反馈结果传输目标传输块；其中,第一发送资源和第二发送资源在时序上依次排列。本发明结合HARQ反馈和盲重传的发送机制,可以通过盲重传保证业务的发送效率,通过HARQ反馈的重传机制减少冗余发送,进而可以提高频谱的利用率及发送的可靠性。(The invention provides an information sending method, an information receiving method, sending equipment and receiving equipment, wherein the information sending method comprises the following steps: blindly retransmitting the target TB transmission block through the first transmission resource; acquiring feedback information which is sent by a receiving end and represents the receiving state of a target transmission block; transmitting the target transport block according to the second transmission resource and the HARQ feedback result when the feedback information is that the target transport block is failed to be received; wherein the first transmission resource and the second transmission resource are sequentially arranged in time sequence. The invention combines the sending mechanism of HARQ feedback and blind retransmission, can ensure the sending efficiency of the service through the blind retransmission, and reduces redundant sending through the retransmission mechanism of HARQ feedback, thereby improving the utilization rate of frequency spectrum and the sending reliability.)

1. An information sending method is applied to a sending end, and is characterized by comprising the following steps:

blindly retransmitting the target TB transmission block through the first transmission resource;

feedback information which is sent by a receiving end and represents the receiving state of the target transmission block is obtained;

transmitting the target transport block according to a second transmission resource and a hybrid automatic repeat request (HARQ) feedback result under the condition that the feedback information is that the target transport block fails to be received;

wherein the first transmission resource and the second transmission resource are sequentially arranged in time sequence.

2. The method of claim 1, wherein blind retransmission of a target TB transport block via a first transmission resource comprises:

determining a first transmission resource in a resource selection window according to at least one of the service quality, the channel interference condition and the fixed bit rate; or determining a first sending resource in the resource selection window according to the configuration information;

and when the resource sending time corresponding to the time sequence is reached, transmitting the target transmission block through the corresponding first sending resource.

3. The method of claim 1, wherein obtaining feedback information characterizing the receiving status of the target transport block sent by a receiving end comprises:

receiving the feedback information of the target transport block which is successfully received or unsuccessfully received through blind retransmission and sent by the receiving end;

terminating subsequent transmission of the target transport block according to the successful reception of the feedback information of the target transport block;

and according to the feedback information of the target transmission block which is transmitted by the first transmission resource and is not successfully received, executing the step of transmitting the target transmission block according to a second transmission resource and a hybrid automatic repeat request (HARQ) feedback result.

4. The method of claim 3, wherein receiving feedback information sent by the receiver to successfully receive or unsuccessfully receive the target transport block through blind retransmission comprises:

receiving one piece of feedback information sent by the receiving end aiming at blind retransmission; or

Receiving the feedback information sent by the receiving end aiming at the grouping corresponding to the blind retransmission, wherein the transmission times included in the blind retransmission correspond to at least two groups, each group corresponds to one piece of the feedback information, and the groups are arranged according to the time sequence; or

And receiving the feedback information which is sequentially sent by the receiving end aiming at each transmission in the blind retransmission.

5. The method of claim 4, wherein receiving the feedback information sent by the receiving end for blind retransmission comprises:

receiving feedback information of successful receiving sent by the receiving end after the target transmission block is successfully received in certain transmission in blind retransmission; or

Receiving successfully received feedback information sent by the receiving end according to the condition that the target transmission block is successfully received by the receiving end in the blind retransmission after the blind retransmission is finished; or

And receiving feedback information of failed reception, which is sent by the receiving end after the blind retransmission is finished and any one of the target transmission blocks is not successfully received.

6. The method of claim 4, wherein receiving the feedback information sent by the receiving end for blind retransmission of the corresponding packet comprises:

receiving feedback information corresponding to a first group sent by the receiving end;

when the feedback information corresponding to the first group is the feedback information which fails to be received, continuously receiving the feedback information corresponding to the second group sent by the receiving end until the feedback information which is successfully received is received;

the first group and the second group are sequentially arranged according to a time sequence, the sending end receives feedback information of successful receiving of the group sent by the receiving end after the target transmission block is successfully received by the receiving end after a certain transmission in any group, or the sending end receives feedback information of successful receiving of the group sent by the receiving end according to the condition that the target transmission block is successfully received by the certain transmission in the group after the transmission of any group is finished, or the sending end receives feedback information of failed receiving of the group sent by the receiving end after the transmission of any group is finished and when any target transmission block is not successfully received;

and under the condition that the sending end does not receive the successfully received feedback information, the sending end determines the end of blind retransmission according to the group number included in the blind retransmission or a blind retransmission end mark carried in the feedback information.

7. The method of claim 4, wherein receiving the feedback information sequentially sent by the receiving end for each transmission in a blind retransmission comprises:

receiving the feedback information which is sequentially sent by the receiving end according to the time sequence, wherein each transmission in the blind retransmission corresponds to one feedback information;

when the receiving end successfully receives the target transmission block according to the certain transmission in the blind retransmission, the sending end receives the feedback information of successful reception sent by the receiving end, and when the receiving end unsuccessfully receives the target transmission block according to the certain transmission in the blind retransmission, the sending end receives the feedback information of failed reception sent by the receiving end;

the method comprises the steps that a sending end determines the end of blind retransmission according to the transmission times of the blind retransmission or blind retransmission ending marks carried in feedback information under the condition that the sending end does not receive feedback information which is successfully received aiming at each transmission in the blind retransmission.

8. The method of claim 1, wherein transmitting the target transport block according to the second transmission resource and a hybrid automatic repeat request (HARQ) feedback result comprises:

determining the second sending resource in a resource selection window according to the last sending time corresponding to the first sending resource and the time delay upper limit of the service quality, wherein the time delay upper limit of the service quality is positioned in the time period corresponding to the resource selection window, and the sending time corresponding to the second sending resource is positioned between the last sending time corresponding to the first sending resource and the time delay upper limit of the service quality;

and when the resource sending time corresponding to the time sequence is reached, transmitting the target transport block through the second sending resource based on a HARQ feedback mechanism.

9. The method of claim 8, wherein transmitting the target transport block over the second transmission resource based on a HARQ feedback mechanism comprises:

after the target transport block is sent through one second sending resource, receiving a HARQ feedback result sent by the receiving end;

and under the condition that the HARQ feedback result is that the target transmission block is not successfully received, transmitting the target transmission block through the next second transmission resource until the target transmission block is successfully transmitted or the second transmission resource is used completely.

10. An information receiving method is applied to a receiving end, and is characterized by comprising the following steps:

receiving a target TB transmission block which is blindly retransmitted by a transmitting end through a first transmitting resource;

sending feedback information representing the receiving state of the target transmission block to the sending end;

receiving the target transmission block transmitted by the transmitting end according to a second transmission resource and a hybrid automatic repeat request (HARQ) feedback result under the condition that the feedback information is that the target transmission block is failed to be received;

wherein the first transmission resource and the second transmission resource are sequentially arranged in time sequence.

11. The method of claim 10, wherein the feedback information comprises corresponding successfully received feedback information when the target transport block is successfully received through blind retransmission and corresponding unsuccessfully received feedback information when the target transport block is not successfully received through blind retransmission;

sending feedback information representing the receiving state of the target transmission block to the sending end, wherein the feedback information comprises:

sending one of the feedback information for blind retransmission to the sending end; or

Sending the feedback information to the sending end aiming at each group corresponding to blind retransmission, wherein the transmission times included in the blind retransmission correspond to at least two groups, and the groups are arranged according to the time sequence; or

And sending the feedback information to the sending end in sequence aiming at each transmission in the blind retransmission.

12. The method of claim 11, wherein sending one of the feedback information for blind retransmission to the transmitting end comprises:

after the target transmission block is successfully received through a certain transmission in blind retransmission, sending feedback information of successful receiving to the sending end; or

When the blind retransmission is determined to be finished, sending feedback information of successful receiving to the sending end according to the condition that the target transmission block is successfully received through certain transmission in the blind retransmission; or

When the blind retransmission is determined to be finished, sending feedback information of failed reception to the sending end according to the condition that any one target transmission block is not successfully received;

and the receiving end determines the end of the blind retransmission according to at least one of the counted sending times, the redundancy version of the combined received data, the current transmission times in the blind retransmission in the direct link control information SCI indication and the blind retransmission transmission end mark.

13. The method of claim 11, wherein sending the feedback information to the sending end for each packet corresponding to blind retransmission comprises:

sending feedback information corresponding to the first packet to the sending end;

when the feedback information corresponding to the first group is the feedback information with failed reception, continuously sending the feedback information corresponding to a second group to the sending end until the feedback information with successful reception is sent to the sending end, wherein the first group and the second group are sequentially arranged according to the time sequence;

for each group, when a certain transmission in the group successfully receives the target transmission block, sending the feedback information of the group of successful receiving to the sending end; or for each group, when determining that the blind retransmission is finished, sending feedback information of successful receiving of the group to the sending end according to the condition that the target transmission block is successfully received in a certain transmission in the group; or for each group, when determining that the blind retransmission is finished, sending feedback information of the group of failed receptions to the sending end according to the condition that any one target transmission block is not successfully received in the group;

the receiving end determines that a group of transmission in the blind retransmission is finished according to at least one of the counted sending times of the group, the redundancy version of the combined received data, the sequence corresponding to the current transmission in the group of blind retransmission in the direct link control information SCI indication and the transmission end mark of the group of blind retransmission; and under the condition that the target transmission block is not successfully received, the receiving end determines the end of blind retransmission according to the group number included in the blind retransmission.

14. The method of claim 11, wherein sending the feedback information to the sending end in sequence for each transmission in blind retransmission comprises:

according to the time sequence, the feedback information is sequentially sent to the sending end, and each transmission in the blind retransmission corresponds to one feedback information;

when the receiving end successfully receives the target transmission block according to the certain transmission in the blind retransmission, the receiving end sends feedback information of successful reception, and when the receiving end unsuccessfully receives the target transmission block according to the certain transmission in the blind retransmission, the receiving end sends feedback information of failed reception;

15. A transmitting device, comprising: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the transceiver is configured to:

blindly retransmitting the target TB transmission block through the first transmission resource;

feedback information which is sent by receiving equipment and represents the receiving state of the target transmission block is obtained;

wherein the first transmission resource and the second transmission resource are sequentially arranged in time sequence.

16. The transmitting device of claim 15, wherein when blindly retransmitting a target TB transport block over a first transmission resource, the processor is configured to:

the transceiver is further configured to: and when the resource sending time corresponding to the time sequence is reached, transmitting the target transmission block through the corresponding first sending resource.

17. The sending device of claim 15, wherein when obtaining the feedback information indicating the receiving status of the target transport block sent by the receiving device, the transceiver is further configured to:

receiving the feedback information of the target transport block which is successfully received or unsuccessfully received through blind retransmission and sent by the receiving equipment;

the processor is further configured to: terminating subsequent transmission of the target transport block according to the successful reception of the feedback information of the target transport block;

controlling the transceiver to perform a step of transmitting the target transport block according to a second transmission resource and a hybrid automatic repeat request (HARQ) feedback result according to the unsuccessfully received feedback information of the target transport block transmitted through the first transmission resource.

18. The transmitting device of claim 17, wherein when receiving the feedback information of the target transport block successfully received or unsuccessfully received through blind retransmission sent by the receiving device, the transceiver is further configured to:

receiving one piece of the feedback information sent by the receiving equipment for blind retransmission; or

Receiving the feedback information sent by the receiving device for the packets corresponding to the blind retransmission, wherein the transmission times included in the blind retransmission correspond to at least two packets, each packet corresponds to one piece of the feedback information, and the packets are arranged according to the time sequence; or

And receiving the feedback information which is sent by the receiving equipment in turn aiming at each transmission in the blind retransmission.

19. The transmitting device of claim 18, wherein upon receiving one of the feedback information transmitted by the receiving device for blind retransmission, the transceiver is further configured to:

receiving feedback information of successful receiving sent by the receiving equipment after the target transmission block is successfully received in certain transmission in blind retransmission; or

Receiving feedback information of successful receiving sent by the receiving equipment according to the condition that the target transmission block is successfully received by certain transmission in the blind retransmission after the blind retransmission is finished; or

And receiving feedback information of failed reception, which is sent by the receiving equipment after the blind retransmission is finished and any one of the target transport blocks is not successfully received.

20. The transmitting device of claim 18, wherein, in receiving the feedback information sent by the receiving device for blind retransmission of a corresponding packet, the transceiver is further configured to:

receiving feedback information corresponding to a first group sent by the receiving equipment;

when the feedback information corresponding to the first group is the feedback information which fails to be received, continuously receiving the feedback information corresponding to the second group sent by the receiving equipment until the feedback information which is successfully received is received;

the first group and the second group are sequentially arranged according to a time sequence, the sending device receives feedback information of successful receiving of the group sent by the receiving device after the target transmission block is successfully received in any group in a certain transmission, or the sending device receives feedback information of successful receiving of the group sent by the receiving device after any group transmission is finished according to the situation that the target transmission block is successfully received in the group in a certain transmission, or the sending device receives feedback information of failed receiving of the group sent by the receiving device after any group transmission is finished and when any target transmission block is not successfully received;

and under the condition that the sending equipment does not receive the successfully received feedback information, the sending equipment determines the end of blind retransmission according to the group number included in the blind retransmission or a blind retransmission end mark carried in the feedback information.

21. The transmitting device of claim 18, wherein when receiving the feedback information sent by the receiving device in turn for each transmission in a blind retransmission, the transceiver is further configured to:

receiving the feedback information which is sequentially sent by the receiving equipment according to the time sequence, wherein each transmission in the blind retransmission corresponds to one feedback information;

when the receiving device successfully receives the target transmission block according to a certain transmission in the blind retransmission, the sending device receives feedback information of successful reception sent by the receiving device, and when the receiving device unsuccessfully receives the target transmission block according to a certain transmission in the blind retransmission, the sending device receives feedback information of failed reception sent by the receiving device;

and the sending equipment determines the end of the blind retransmission according to the transmission times included in the blind retransmission or a blind retransmission end mark carried in the feedback information under the condition that the sending equipment does not receive the feedback information which is successfully received aiming at each transmission in the blind retransmission.

22. The transmitting device of claim 15, wherein when transmitting the target transport block according to the second transmission resource and the HARQ feedback result, the processor is further configured to:

the transceiver is further configured to: and when the resource sending time corresponding to the time sequence is reached, transmitting the target transport block through the second sending resource based on a HARQ feedback mechanism.

23. The transmitting device of claim 22, wherein, when transmitting the target transport block over the second transmission resource based on a HARQ feedback mechanism, the transceiver is further configured to:

after the target transport block is sent through one second sending resource, receiving a HARQ feedback result sent by the receiving equipment;

24. A receiving device, comprising: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the transceiver is configured to:

receiving a target TB transmission block which is blindly retransmitted by a sending device through a first sending resource;

sending feedback information representing the receiving state of the target transmission block to the sending equipment;

receiving the target transport block transmitted by the transmitting equipment according to a second transmitting resource and a hybrid automatic repeat request (HARQ) feedback result under the condition that the feedback information is that the target transport block is failed to be received;

wherein the first transmission resource and the second transmission resource are sequentially arranged in time sequence.

25. The receiving device according to claim 24, wherein the feedback information comprises corresponding successfully received feedback information when the target transport block is successfully received through blind retransmission, and corresponding unsuccessfully received feedback information when the target transport block is not successfully received through blind retransmission;

when sending feedback information representing the receiving state of the target transport block to the sending device, the transceiver is further configured to:

transmitting one of the feedback information for blind retransmission to the transmitting device; or

Sending the feedback information to the sending equipment aiming at each group corresponding to blind retransmission, wherein the transmission times included in the blind retransmission correspond to at least two groups, and the groups are arranged according to the time sequence; or

And sending the feedback information to the sending equipment in sequence aiming at each transmission in the blind retransmission.

26. The receiving device of claim 25, wherein when sending one of the feedback information for blind retransmissions to the sending device, the transceiver is further configured to:

after the target transmission block is successfully received through a certain transmission in blind retransmission, sending feedback information of successful receiving to the sending equipment; or

When the blind retransmission is determined to be finished, sending feedback information of successful receiving to the sending equipment according to the condition that the target transmission block is successfully received through certain transmission in the blind retransmission; or

When the blind retransmission is determined to be finished, sending feedback information of failed reception to the sending equipment according to the condition that any one of the target transmission blocks is not successfully received;

and the receiving equipment determines the end of blind retransmission according to at least one of the counted sending times, the redundancy version of the combined received data, the current transmission times in the blind retransmission in the direct link control information SCI indication and the blind retransmission transmission end mark.

27. The receiving device of claim 25, wherein when sending the feedback information to the sending device for each packet corresponding to a blind retransmission, the transceiver is further configured to:

sending feedback information corresponding to the first group to the sending equipment;

when the feedback information corresponding to the first group is the feedback information which fails to be received, the feedback information corresponding to the second group is continuously sent to the sending equipment until the feedback information which is successfully received is sent to the sending equipment, and the first group and the second group are sequentially arranged according to the time sequence;

for each group, when a certain transmission in the group successfully receives the target transmission block, sending feedback information of the group successful receiving to the sending equipment; or for each group, when determining that the blind retransmission is finished, according to the condition that the target transmission block is successfully received in a certain transmission in the group, sending feedback information of successful reception of the group to the sending equipment; or for each group, when determining that the blind retransmission is finished, according to the condition that any one of the target transport blocks is not successfully received in the group, sending feedback information of the group of failed reception to the sending equipment;

the receiving device determines that a group of transmission in the blind retransmission is finished according to at least one of the counted sending times of the group, the redundancy version of the combined received data, the sequence corresponding to the current transmission in the group of blind retransmission in the direct link control information SCI indication and the blind retransmission of the group of transmission finishing marks; and under the condition that the target transport block is not successfully received, the receiving equipment determines the blind retransmission to be finished according to the group number included in the blind retransmission.

28. The receiving device of claim 25, wherein when the feedback information is sequentially sent to the sending device for each transmission in a blind retransmission, the transceiver is further configured to:

according to the time sequence, the feedback information is sequentially sent to the sending equipment, and each transmission in the blind retransmission corresponds to one feedback information;

when the receiving equipment successfully receives the target transmission block according to the certain transmission in the blind retransmission, sending feedback information of successful reception, and when the receiving equipment unsuccessfully receives the target transmission block according to the certain transmission in the blind retransmission, sending feedback information of failed reception;

wherein, under the condition that the target transmission block is not successfully received aiming at each transmission in the blind retransmission, the receiving equipment determines the blind retransmission end according to at least one of the counted received sending times, the redundancy version of the combined received data, the current transmission times in the blind retransmission in the direct link control information SCI indication and the blind retransmission transmission end mark.

29. A transmitting device, comprising:

a first transmission module, configured to blindly retransmit a target TB transport block via a first transmission resource;

the acquisition module is used for acquiring feedback information which is sent by receiving equipment and represents the receiving state of the target transmission block;

a second transmission module, configured to transmit the target transport block according to a second transmission resource and a HARQ feedback result when the feedback information indicates that the target transport block is unsuccessfully received;

wherein the first transmission resource and the second transmission resource are sequentially arranged in time sequence.

30. A receiving device, comprising:

a first receiving module, configured to receive a target TB transport block that is blindly retransmitted by a sending device through a first sending resource;

a sending module, configured to send feedback information representing a receiving state of the target transport block to the sending device;

a second receiving module, configured to receive, when the feedback information indicates that the target transport block is failed to be received, the target transport block transmitted by the transmitting device according to a second transmission resource and a HARQ feedback result;

wherein the first transmission resource and the second transmission resource are sequentially arranged in time sequence.

31. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps in the information transmitting method according to any one of claims 1 to 9 or carries out the steps in the information receiving method according to any one of claims 10 to 14.

Technical Field

The invention relates to the technical field of mobile communication, in particular to an information sending and receiving method, sending equipment and receiving equipment.

Background

Currently, when sending resources, the LTE (Long Term Evolution) -V2X (Vehicle-to-electrical networking) technology uses a blind retransmission mechanism, and sending a TB (Transport Block) by a sending UE (User Equipment) is performed directly on S sending resources after S sending resources are selected in a time-frequency domain of a resource selection window, and a receiving situation of the receiving UE is not considered after each sending, as shown in fig. 1.

In the current application field of the internet of vehicles V2X, a blind retransmission mechanism for resource transmission can provide low time delay for transmission, and the processing complexity of resource selection is lower during transmission, but because there is no feedback from the receiving end to the transmitting end after transmission, blind retransmission does not know whether reception is successful, and there are 2 cases: if the TB retransmission times are not enough, the receiving end is unsuccessful; or the TB retransmission times are redundant, the receiving end has successfully received the TB, and the transmitting end still continues unfinished blind retransmission, which causes resource waste. Meanwhile, the utilization efficiency of the blind retransmission mechanism to the frequency spectrum is low, the adaptive adjustment of the link is difficult to apply, and in the worst case, the maximum retransmission time can be caused by the blind retransmission mechanism.

Disclosure of Invention

Embodiments of the present invention provide an information sending method, an information receiving method, a sending device, and a receiving device, so as to solve the problem that a retransmission mechanism in the prior art is low in spectrum utilization efficiency and is prone to cause the maximum retransmission time.

The embodiment of the invention provides an information sending method, which is applied to a sending end and comprises the following steps:

blindly retransmitting the target TB transmission block through the first transmission resource;

feedback information which is sent by a receiving end and represents the receiving state of the target transmission block is obtained;

wherein the first transmission resource and the second transmission resource are sequentially arranged in time sequence.

Optionally, the blind retransmission of the target TB transport block by the first transmission resource includes:

and when the resource sending time corresponding to the time sequence is reached, transmitting the target transmission block through the corresponding first sending resource.

Optionally, the obtaining feedback information representing the receiving state of the target transport block sent by the receiving end includes:

receiving the feedback information of the target transport block which is successfully received or unsuccessfully received through blind retransmission and sent by the receiving end;

terminating subsequent transmission of the target transport block according to the successful reception of the feedback information of the target transport block;

Optionally, receiving feedback information of the target transport block successfully received or unsuccessfully received through blind retransmission sent by the receiving end includes:

receiving one piece of feedback information sent by the receiving end aiming at blind retransmission; or

And receiving the feedback information which is sequentially sent by the receiving end aiming at each transmission in the blind retransmission.

Optionally, receiving one piece of feedback information sent by the receiving end for blind retransmission includes:

receiving feedback information of successful receiving sent by the receiving end after the target transmission block is successfully received in certain transmission in blind retransmission; or

Optionally, receiving the feedback information sent by the receiving end for the packet corresponding to the blind retransmission includes:

receiving feedback information corresponding to a first group sent by the receiving end;

Optionally, receiving the feedback information sequentially sent by the receiving end for each transmission in the blind retransmission includes:

Optionally, transmitting the target transport block according to the second transmission resource and the HARQ feedback result includes:

and when the resource sending time corresponding to the time sequence is reached, transmitting the target transport block through the second sending resource based on a HARQ feedback mechanism.

Optionally, transmitting the target transport block through the second transmission resource based on a HARQ feedback mechanism includes:

after the target transport block is sent through one second sending resource, receiving a HARQ feedback result sent by the receiving end;

The embodiment of the invention provides an information receiving method, which is applied to a receiving end and comprises the following steps:

receiving a target TB transmission block which is blindly retransmitted by a transmitting end through a first transmitting resource;

sending feedback information representing the receiving state of the target transmission block to the sending end;

wherein the first transmission resource and the second transmission resource are sequentially arranged in time sequence.

sending feedback information representing the receiving state of the target transmission block to the sending end, wherein the feedback information comprises:

sending one of the feedback information for blind retransmission to the sending end; or

And sending the feedback information to the sending end in sequence aiming at each transmission in the blind retransmission.

Optionally, sending one piece of feedback information for blind retransmission to the sending end includes:

after the target transmission block is successfully received through a certain transmission in blind retransmission, sending feedback information of successful receiving to the sending end; or

Optionally, sending the feedback information to the sending end for each packet corresponding to blind retransmission, where the sending end includes:

sending feedback information corresponding to the first packet to the sending end;

Optionally, for each transmission in the blind retransmission, the sending of the feedback information to the sending end in sequence includes:

according to the time sequence, the feedback information is sequentially sent to the sending end, and each transmission in the blind retransmission corresponds to one feedback information;

An embodiment of the present invention provides a transmission device, including: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor, the transceiver to:

blindly retransmitting the target TB transmission block through the first transmission resource;

feedback information which is sent by receiving equipment and represents the receiving state of the target transmission block is obtained;

wherein the first transmission resource and the second transmission resource are sequentially arranged in time sequence.

Optionally, when the target TB transport block is blindly retransmitted through the first transmission resource, the processor is configured to:

Optionally, when obtaining the feedback information representing the receiving state of the target transport block sent by the receiving device, the transceiver is further configured to:

receiving the feedback information of the target transport block which is successfully received or unsuccessfully received through blind retransmission and sent by the receiving equipment;

Optionally, when receiving the feedback information of the target transport block successfully received through blind retransmission or unsuccessfully received through blind retransmission sent by the receiving device, the transceiver is further configured to:

receiving one piece of the feedback information sent by the receiving equipment for blind retransmission; or

And receiving the feedback information which is sent by the receiving equipment in turn aiming at each transmission in the blind retransmission.

Optionally, when receiving one of the feedback information sent by the receiving device for blind retransmission, the transceiver is further configured to:

receiving feedback information of successful receiving sent by the receiving equipment after the target transmission block is successfully received in certain transmission in blind retransmission; or

Optionally, when receiving the feedback information sent by the receiving device for the packet corresponding to the blind retransmission, the transceiver is further configured to:

receiving feedback information corresponding to a first group sent by the receiving equipment;

when the feedback information corresponding to the first group is the feedback information which fails to be received, continuously receiving the feedback information corresponding to the second group sent by the receiving equipment until the feedback information which is successfully received is received;

Optionally, when receiving the feedback information sequentially sent by the receiving device for each transmission in the blind retransmission, the transceiver is further configured to:

Optionally, when the target transport block is transmitted according to the second transmission resource and the HARQ feedback result, the processor is further configured to:

Optionally, based on the HARQ feedback mechanism, when the target transport block is transmitted through the second transmission resource, the transceiver is further configured to:

after the target transport block is sent through one second sending resource, receiving a HARQ feedback result sent by the receiving equipment;

An embodiment of the present invention provides a receiving device, including: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor, the transceiver to:

receiving a target TB transmission block which is blindly retransmitted by a sending device through a first sending resource;

sending feedback information representing the receiving state of the target transmission block to the sending equipment;

wherein the first transmission resource and the second transmission resource are sequentially arranged in time sequence.

when sending feedback information representing the receiving state of the target transport block to the sending device, the transceiver is further configured to:

transmitting one of the feedback information for blind retransmission to the transmitting device; or

And sending the feedback information to the sending equipment in sequence aiming at each transmission in the blind retransmission.

Optionally, when sending one of the feedback information for blind retransmission to the sending device, the transceiver is further configured to:

after the target transmission block is successfully received through a certain transmission in blind retransmission, sending feedback information of successful receiving to the sending equipment; or

Optionally, when sending the feedback information to the sending device for each packet corresponding to blind retransmission, the transceiver is further configured to:

sending feedback information corresponding to the first group to the sending equipment;

Optionally, when sending the feedback information to the sending device in sequence for each transmission in the blind retransmission, the transceiver is further configured to:

according to the time sequence, the feedback information is sequentially sent to the sending equipment, and each transmission in the blind retransmission corresponds to one feedback information;

An embodiment of the present invention further provides a sending device, including:

a first transmission module, configured to blindly retransmit a target TB transport block via a first transmission resource;

the acquisition module is used for acquiring feedback information which is sent by receiving equipment and represents the receiving state of the target transmission block;

wherein the first transmission resource and the second transmission resource are sequentially arranged in time sequence.

An embodiment of the present invention further provides a receiving device, including:

a first receiving module, configured to receive a target TB transport block that is blindly retransmitted by a sending device through a first sending resource;

a sending module, configured to send feedback information representing a receiving state of the target transport block to the sending device;

wherein the first transmission resource and the second transmission resource are sequentially arranged in time sequence.

Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the above-mentioned information sending method or implements the steps in the above-mentioned information receiving method.

According to the technical scheme, the sending efficiency of the service can be ensured through blind retransmission by combining the sending mechanisms of HARQ feedback and blind retransmission, and redundant sending is reduced through the retransmission mechanism of HARQ feedback, so that the utilization rate of the frequency spectrum and the sending reliability can be improved.

Drawings

Fig. 1 shows a schematic diagram of transmission and reception corresponding to a blind retransmission transmission mechanism;

fig. 2 is a schematic diagram illustrating transmission and reception corresponding to a retransmission mechanism based on HARQ feedback;

FIG. 3 is a diagram illustrating an exemplary method for sending messages according to an embodiment of the present invention;

fig. 4 is a diagram illustrating an example of interacting feedback information between a transmitting end and a receiving end for blind retransmission according to an embodiment of the present invention;

fig. 5 shows a second schematic diagram illustrating that the transmitting end and the receiving end interact a feedback message for blind retransmission according to the embodiment of the present invention;

fig. 6 is a schematic diagram illustrating that a sending end and a receiving end interact one feedback information for blind retransmission and interact the feedback information for a HARQ mechanism according to an embodiment of the present invention;

fig. 7 is a diagram illustrating one example of interaction of feedback information for each packet of blind retransmission by a transmitting end and a receiving end according to an embodiment of the present invention;

fig. 8 shows a second schematic diagram of the sending end and the receiving end interacting feedback information for each packet of blind retransmission according to the embodiment of the present invention;

fig. 9 is a schematic diagram illustrating that a transmitting end and a receiving end interact feedback information for each packet of blind retransmission and interact feedback information for a HARQ mechanism according to an embodiment of the present invention;

fig. 10 is a diagram illustrating an example of interacting feedback information between a transmitting end and a receiving end for each transmission according to an embodiment of the present invention;

fig. 11 shows a second schematic diagram of the sending end and the receiving end interacting feedback information for each transmission according to the embodiment of the present invention;

fig. 12 is a third schematic diagram illustrating that the sending end and the receiving end interact with each other to send feedback information according to the embodiment of the present invention;

FIG. 13 is a schematic diagram of an information receiving method according to an embodiment of the present invention;

fig. 14 is a schematic structural diagram of a transmitting device according to an embodiment of the present invention;

fig. 15 is a schematic structural diagram of a receiving device according to an embodiment of the present invention;

fig. 16 is a schematic structural diagram of a transmitting device according to an embodiment of the present invention;

fig. 17 is a schematic structural diagram of a receiving apparatus according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The information sending and receiving method of the embodiment of the invention has the design idea that: due to the retransmission mechanism based on HARQ (Hybrid automatic repeat request) feedback, the transmitting end needs to wait for HARQ feedback delay after transmission to ensure processing of the feedback of the receiving end. If the transmission efficiency of most resources is to be ensured, blind retransmission transmission can be carried out firstly, then the transmitting end checks feedback of the receiving end, if the receiving end receives the resources transmitted by the blind retransmission mechanism, the transmitting is successful, next transmission is prepared, and if the receiving end does not successfully receive, the transmitting with the HARQ feedback mechanism is flexibly adopted in each subsequent transmission, so that the reliability of service retransmission is ensured.

For the blind retransmission mechanism, after the transmission resource is selected, the TB is directly transmitted on the transmission resource, and the receiving condition of the receiving end is not considered after each transmission, so that the transmission efficiency can be ensured. For the retransmission mechanism of HARQ feedback, after a transmission resource is selected in the Time-frequency domain of a resource selection window (where a Time interval between every two adjacent resources needs to be greater than or equal to RTT (Round Trip Time)), the resources are transmitted according to a Time sequence order, and after each transmission, a receiving end needs to feed back HARQ information according to a receiving condition. If the receiving end fails to feed back the receiving, the sending end continues to send the unfinished transmission of the TB; if the receiving end feeds back the successful reception, the transmitting end stops transmitting, as shown in fig. 2. The retransmission mechanism based on HARQ feedback can enable the sending end to clearly know the receiving result of the receiving end through feedback information, so that high spectrum utilization rate is ensured, and resource utilization rate is also ensured only by the retransmission mechanism when necessary. Therefore, by combining the blind retransmission mechanism and the retransmission mechanism of the HARQ feedback, the transmission efficiency of the service can be ensured through the blind retransmission, and the redundant transmission is reduced through the retransmission mechanism of the HARQ feedback, so that the utilization rate of the frequency spectrum and the transmission reliability can be improved. The following explains an information sending method and an information receiving method respectively according to embodiments of the present invention.

An embodiment of the present invention provides an information sending method, applied to a sending end, as shown in fig. 3, including:

step 301, the target TB transport block is blindly retransmitted through the first transmission resource.

The information sending method provided by the embodiment of the invention is applied to a sending end, when the sending end selects resources, a first sending resource and a second sending resource need to be selected, wherein the first sending resource is used for blind retransmission, and when the second sending resource is adopted for transmission, HARQ feedback time delay between adjacent resources needs to be considered. After the first transmission resource is selected, the target transport block may be blindly retransmitted through the first transmission resource, where the number of transmissions involved in the blind retransmission is at least two, and the number of corresponding first transmission resources is at least two.

And step 302, obtaining feedback information which is sent by a receiving end and represents the receiving state of the target transmission block.

After the target transport block is sent in a blind retransmission manner, feedback information sent by the receiving end for the receiving state of the target transport block can be obtained, wherein the feedback information includes feedback information of successful receiving and feedback information of failed receiving sent by the receiving end.

Step 303, transmitting the target transport block according to a second transmission resource and a hybrid automatic repeat request HARQ feedback result when the feedback information indicates that the target transport block is unsuccessfully received; wherein the first transmission resource and the second transmission resource are sequentially arranged in time sequence.

When the feedback information sent by the receiving end is the feedback information of the reception failure of the target transport block, the target transport block may continue to be transmitted through the second transmission resource at this time, when transmission is performed through the second transmission resource, the HARQ feedback delay between adjacent resources needs to be considered, when the HARQ feedback result is the reception failure, the target transport block needs to be sent again, that is, after one second transmission resource is used to transmit the target transport block, if the HARQ information sent by the receiving end is the reception failure, another second transmission resource may be used to transmit the target transport block, and there is an HARQ RTT interval between the two second transmission resources. Wherein the first transmission resource and the second transmission resource are arranged from front to back in time sequence.

In the following, a specific example is described for implementing a retransmission mechanism combining a blind retransmission mechanism and HARQ feedback, when resource selection is performed, it is assumed that S ═ n + m resources need to be selected for transmission in total, where n and m are positive integers, and n resources (first transmission resources) are arranged from front to back in time sequence compared with m resources (second transmission resources). For the first n resources, blind retransmission transmission is carried out, HARQ feedback time delay between adjacent resources does not need to be considered, and the blind retransmission can be directly transmitted when the resource transmission time corresponding to the time sequence is reached. If the receiving end feeds back the successful reception, the subsequent unfinished transmission and transmission of the TB are terminated; otherwise, the subsequent transmission of the TB is continued. If the sending end does not receive the successful receiving information fed back by the receiving end after the blind retransmission is finished, then the sending end needs to consider the HARQ feedback delay influence of the adjacent 2 times of sending on each sending of the remaining m resources, and the sending end also needs to carry out resource sending processing according to the HARQ feedback result of the receiving end.

According to the information sending method provided by the embodiment of the invention, under the condition of combining the HARQ feedback and the blind retransmission sending mechanism, the sending efficiency of the service can be ensured through the blind retransmission, the redundant sending is reduced through the retransmission mechanism of the HARQ feedback, and the utilization rate of the frequency spectrum and the sending reliability can be further improved.

Optionally, in an embodiment of the present invention, the blind retransmission of the target TB transport block by the first transmission resource includes:

and when the resource sending time corresponding to the time sequence is reached, transmitting the target transmission block through the corresponding first sending resource.

When the target transport block is retransmitted blindly by the first transmission resource, the first transmission resource needs to be determined, and when the first transmission resource is determined, one or more factors such as QoS (Quality of Service), interference condition of a channel, CBR (constant bit rate), and the like need to be considered, and the number of the first transmission resource needs to be determined according to the at least one factor. The first transmission resource may also be determined according to a higher layer configuration or pre-configuration. The number of the first transmission resources may be zero, which is an extreme case, and the target transport block is not transmitted in a blind retransmission manner.

After the first transmission resource is determined, when the resource transmission time corresponding to the time sequence is reached, the target transport block is transmitted through the corresponding transmission resource, so that blind retransmission of the target transport block through the first transmission resource is realized.

In the process, the first sending resource is determined in the resource selection window, so that the target transmission block can be transmitted by the first sending resource in a blind retransmission mode, and the service sending efficiency can be further ensured.

Optionally, in an embodiment of the present invention, obtaining feedback information representing a receiving state of the target transport block sent by a receiving end includes:

receiving the feedback information of the target transport block which is successfully received or unsuccessfully received through blind retransmission and sent by the receiving end;

terminating subsequent transmission of the target transport block according to the successful reception of the feedback information of the target transport block;

When feedback information used for representing the receiving state of the target transport block and sent by the receiving end is obtained, the feedback information of the target transport block which is successfully received and sent by the receiving end can be obtained when the receiving end successfully receives the target transport block through blind retransmission, and the feedback information of the target transport block which is not successfully received and sent by the receiving end can be obtained when the receiving end unsuccessfully receives the target transport block through blind retransmission.

The sending end can terminate the subsequent sending of the target transport block according to the feedback information of the target transport block successfully received through blind retransmission, and can also send the target transport block by adopting a retransmission sending mechanism of the second sending resource and HARQ feedback according to the feedback information of the target transport block which is not successfully received and sent through the first sending resource.

In the above process, the sending end can determine whether to continue sending the target transmission block according to the feedback information of different contents sent by the receiving end, so as to implement different processes according to the feedback information.

Optionally, in an embodiment of the present invention, receiving feedback information of the target transport block successfully received or unsuccessfully received through blind retransmission, where the feedback information is sent by the receiving end, includes:

receiving one piece of feedback information sent by the receiving end aiming at blind retransmission; or

And receiving the feedback information which is sequentially sent by the receiving end aiming at each transmission in the blind retransmission.

When receiving the feedback information sent by the receiving end, the receiving end may obtain one piece of feedback information sent by the receiving end for the blind retransmission, that is, the receiving end only sends one piece of feedback information for the blind retransmission, where the feedback information may be the feedback information of successfully receiving the target transport block through the blind retransmission, or the feedback information of unsuccessfully receiving the target transport block through the blind retransmission. When the sending end receives the feedback information of the target transport block successfully received through blind retransmission sent by the receiving end, the sending end terminates the subsequent unfinished sending of the target transport block and sends a new TB, and when the sending end receives the feedback information of the target transport block unsuccessfully received through blind retransmission sent by the receiving end, the sending end continues to transmit the target transport block based on a retransmission mechanism of HARQ feedback and a second sending resource.

When receiving the feedback information sent by the receiving end, the feedback information sent by the receiving end for each packet corresponding to the blind retransmission can also be obtained, that is, the transmission times included in the blind retransmission can correspond to at least two packets, each packet can correspond to one feedback information, and the packets are arranged according to the time sequence. When the sending end receives the feedback information of the receiving end aiming at the successful receiving of a packet (not the last packet), the sending end can terminate the subsequent unfinished sending of the target transmission block and carry out the sending of the next transmission block. When the transmitting end receives the feedback information of the receiving end aiming at the receiving failure of one packet (not the last packet), the transmitting end can continue the transmission of each subsequent group of the target transmission block. When the transmitting end receives the feedback information of the receiving end aiming at the receiving failure of the last packet, the transmitting end can continue to transmit the target transport block based on the retransmission mechanism of the HARQ feedback and the second transmitting resource.

When receiving the feedback information sent by the receiving end, the receiving end may also receive the feedback information sent by the receiving end in sequence for each transmission in the blind retransmission, that is, the receiving end sends the feedback information for each transmission in the blind retransmission, where the feedback information may be the feedback information of the successfully received target transport block, or the feedback information of the unsuccessfully received target transport block. When the sending end receives the feedback information of the target transport block successfully received by a certain transmission (not the last transmission) in the blind retransmission fed back by the receiving end, the sending end can stop the subsequent unfinished sending of the target transport block and send a new TB. When the receiving end does not successfully receive the target transport block in each transmission in the blind retransmission, the sending end can obtain the feedback information with the same number as the transmission times in the blind retransmission, and the feedback information is the feedback information of the target transport block which is not successfully received, and at this moment, the sending end can continue to transmit the target transport block based on the retransmission mechanism fed back by the HARQ and the second sending resource.

The process can receive the feedback information aiming at blind retransmission in an integral, grouping or single mode, enriches the information receiving modes, and can realize different sending processes according to different information receiving modes.

Optionally, in an embodiment of the present invention, receiving one piece of the feedback information sent by the receiving end for blind retransmission includes:

receiving feedback information of successful receiving sent by the receiving end after the target transmission block is successfully received in certain transmission in blind retransmission; or

For the condition that the blind retransmission only receives one feedback information, the feedback information which is successfully received can be fed back when the receiving end successfully receives the target transmission block only once in the blind retransmission, the feedback time can be immediate feedback or can be fed back after the blind retransmission is finished, the sending end can receive the feedback information which is immediately sent by the receiving end after the receiving end successfully receives the target transmission block, and can also receive the feedback information which is sent by the receiving end according to the condition that the blind retransmission is successfully received once. When the receiving end does not successfully receive the target transport block in the blind retransmission process, the sending end can receive the feedback information of the reception failure sent by the receiving end after the blind retransmission is finished.

The following explains a case where the transmitting end receives only one feedback information for blind retransmission. Assuming that the transmitting end transmits S resources in total, the value of S is 6, the number of the first transmitting resources is n, and the number of the second transmitting resources is m. The number n of the first sending resources corresponding to the blind retransmission can be determined to be equal to 3 according to any one of the QoS of the service, the measured channel interference and the measured CBR, or the number n of the first sending resources can be determined to be equal to 3 by high-layer configuration and pre-configuration. M may be determined to be equal to 3 according to the upper delay limit of the traffic QoS, or by higher layer configuration or pre-configuration.

First, a case where the receiving end immediately feeds back to the transmitting end after successfully receiving the target transport block will be described. Referring to fig. 4, the sending end sends TB1 in the first 3 resources by using a blind retransmission mechanism, and continuously waits for the receiving end to perform feedback, and the receiving end knows that it receives blind retransmission by counting the receiving times, and fails to analyze the first data packet, and does not send feedback; and receiving the second data packet, successfully analyzing, and sending a receiving success feedback. And the sending end considers that the sending is successful after receiving the feedback of the receiving end, cancels the subsequent third sending and prepares for the subsequent sending of the TB.

Next, a case where the feedback information that is successfully received is transmitted after the blind retransmission is completed will be described. Referring to fig. 5, the transmitting end transmits TB1 in the first 3 resources and then waits for the receiving end to perform feedback. The receiving end obtains the data packet, obtains a blind retransmission end mark by analyzing the received SCI (Sidelink Control Information), knows that the blind retransmission of the transmitting end is ended according to the blind retransmission end mark, and counts 2 nd successful reception (data is not decoded after successful reception) in 3 transmissions, so that the receiving end can be considered as successful reception and successful feedback of transmission and reception. And after receiving the feedback, the sending end considers that the sending is successful and prepares for sending the subsequent TB.

Next, a case where feedback information of reception failure is transmitted after the blind retransmission is completed will be described. Referring to fig. 6, after the first 3 resources send TB1, the sender waits for the receiver to perform feedback. The receiving end finds that the blind retransmission is finished through counting and combining RV (Redundancy Version) of the received data, and 3 times of transmission in the blind retransmission are not successfully received, and feeds back feedback information of receiving failure to the sending end.

The transmitting end continues retransmission transmission based on the HARQ feedback mechanism of TB 1. After the 4 th transmission, the receiving end still fails to receive, the feedback reception fails, and the transmitting end continues to perform retransmission transmission based on the HARQ feedback mechanism. The 5 th transmission is separated from the 4 th transmission by more than RTT. And after the 5 th transmission, the receiving end successfully receives the feedback information and transmits the feedback information of successful reception to the transmitting end. And after receiving the feedback information, the sending end considers that the receiving is successful, does not send for the 6 th time, and prepares for the subsequent new TB sending.

The above is a case of receiving only one feedback information for blind retransmission, and the above receiving case can reduce the number of times of sending the feedback information and optimize the sending process.

Optionally, in an embodiment of the present invention, receiving the feedback information sent by the receiving end for the packet corresponding to the blind retransmission includes:

receiving feedback information corresponding to a first group sent by the receiving end;

For the case of grouping the transmission times included in the blind retransmission, the feedback information sent by the receiving end for the first packet may be received first, and if the feedback information corresponding to the first packet is the feedback information of the target transmission block that is received successfully, the receiving end may determine that the receiving is successful, and the sending end sends the next transmission block. When the feedback information corresponding to the first packet is the feedback information of the target transport block which is not successfully received, the feedback information corresponding to the second packet sent by the receiving end can be continuously received, and when the feedback information corresponding to the second packet is the feedback information of the target transport block which is successfully received, the next transport block which is successfully received can be determined to be sent. When the feedback information corresponding to the second packet is the feedback information which fails to be received, the feedback information corresponding to the third packet may be continuously received until the feedback information which is successfully received is received.

Under the condition that the sending end does not receive the successfully received feedback information, the blind retransmission end can be determined according to the group number included in the blind retransmission, and the blind retransmission end can also be determined according to a blind retransmission end mark carried in the feedback information.

When receiving the feedback information for any packet, the sending end may receive the feedback information of the group of successful receiving sent by the receiving end after the target transmission block is successfully received in a certain transmission in any packet. Or after any packet transmission is finished, the receiving end sends the feedback information of successful receiving of the group according to the condition that the target transmission block is successfully received by the transmission end in the group, and the sending end receives the feedback information sent by the receiving end. And after any packet transmission is finished, the receiving end sends the feedback information of the group of failed receiving according to the condition that any target transmission block is not successfully received, and the sending end receives the feedback information sent by the receiving end.

The following explains a case where the sending end receives feedback information for packets corresponding to blind retransmissions separately. Assuming that the transmitting end transmits S resources in total, the value of S is 6, the number of the first transmitting resources is n, and the number of the second transmitting resources is m. It is assumed that the transmission times n corresponding to blind retransmission are determined to be equal to 4 according to the service QoS, the measured channel interference and the CBR, or the transmission times n corresponding to blind retransmission configured by a high layer are determined to be equal to 4, and the transmission times corresponding to blind retransmission are divided into 2 groups.

First, a case where the receiving end immediately feeds back to the transmitting end after successfully receiving the target transport block will be described. As shown in fig. 7, the transmitting end uses a blind retransmission packet mechanism to transmit TB1 in the first 4 resources, and continuously waits for the receiving end to perform feedback. The receiving end fails to receive the first data packet, does not send feedback information, fails to receive the second data packet, knows that the first group is sent by counting the receiving times, and sends the feedback information of the receiving failure, wherein the group is not the last group. And after receiving the feedback information of the receiving end, the sending end considers that the first group fails to send, performs the first transmission of the second group, and sends the feedback information of successful receiving when the receiving end succeeds in receiving. And after receiving the feedback information, the sending end considers that the receiving is successful, cancels the subsequent sending of the target transmission block and prepares for sending a new TB.

Then, a case where the receiving end successfully receives the target transport block and performs feedback after the group of transmissions is completed will be described. As shown in fig. 8, the transmitting end uses a blind retransmission packet mechanism to transmit TB1 in the first 4 resources, and continuously waits for the receiving end to perform feedback. The receiving end receives the failure of the analysis of the first data packet, does not send feedback, receives the second data packet, fails to analyze the data, knows that the first group is sent through analyzing the blind retransmission ending mark of the grouping, and sends the feedback information of the failure of the receiving, wherein the group is not the last group. And after receiving the feedback information of the receiving end, the sending end considers that the first group fails to send, sends the second group of first transmission, and the receiving end succeeds in receiving. And the transmitting end transmits the second group of second transmission, the receiving end does not analyze the data any more, and the receiving end acquires the grouping blind retransmission ending mark by analyzing the SCI to determine that the second group is transmitted and receives the successful feedback information. And after receiving the feedback information, the sending end considers that the receiving is successful, cancels the subsequent sending of the target transmission block and prepares for sending a subsequent new TB.

Then, the case where the blind retransmission failure is transmitted based on the HARQ feedback mechanism will be described. As shown in fig. 9, the transmitting end uses a blind retransmission packet mechanism to transmit TB1 in the first 4 resources, and continuously waits for the receiving end to perform feedback. The receiving end receives the first data packet and fails in analysis, no feedback is sent, the receiving end receives the second data packet and fails in data analysis, the receiving end knows that the first group is sent completely through counting the receiving times, the group is not the last group, and the receiving end sends feedback information of the receiving failure. The sending end considers that the first group fails to send after receiving the feedback information of the receiving end, sends the first transmission of the second group, the receiving end fails to receive, the sending end sends the second transmission of the second group, the receiving end fails to receive, and the receiving end knows that the sending of the second group is finished by counting the receiving times and sends the feedback information of the receiving failure. And the sending end considers that the blind retransmission fails after receiving the feedback information, and then sends the feedback information through an HARQ (hybrid automatic repeat request) feedback mechanism. After the 5 th transmission, the receiving end still fails to receive successfully, the receiving end feeds back the information of the receiving failure, the transmitting end continues to carry out the HARQ feedback mechanism transmission, the interval time between the 6 th transmission and the 5 th transmission is greater than RTT, the receiving end receives successfully after the 6 th transmission, and the feedback information of the receiving success is transmitted to the transmitting end. And after receiving the feedback information, the sending end considers that the receiving is successful and prepares for sending a subsequent new TB.

In the above case, the feedback information is received for each packet in the blind retransmission, and in the above receiving case, the number of times of sending the feedback information can be relatively reduced by grouping the transmission times, so that the sending process is optimized.

Optionally, in an embodiment of the present invention, receiving the feedback information that is sequentially sent by the receiving end for each transmission in the blind retransmission includes:

The method comprises the steps that feedback information sent by a receiving end in sequence according to time sequence can be received aiming at the condition that each transmission in blind retransmission receives the feedback information, the feedback information which is sent by the receiving end successfully can be received when a certain transmission successfully receives a target transmission block, and the feedback information which is sent by the receiving end and fails to be received can be received when the certain transmission does not successfully receive the target transmission block.

If the sending end receives the feedback information of the reception failure for each transmission in the blind retransmission, the blind retransmission can be determined to be finished according to the transmission times included in the blind retransmission, and the blind retransmission can also be determined to be finished according to a blind retransmission finishing mark carried in the feedback information.

The following illustrates a case where the sending end receives feedback information separately for each transmission in the blind retransmission. Assuming that the transmitting end transmits S resources in total, the value of S is 6, the number of the first transmitting resources is n, and the number of the second transmitting resources is m. The number n of the first sending resources corresponding to the blind retransmission can be determined to be equal to 3 according to any one of the QoS of the service, the measured channel interference and the measured CBR, or the number n of the first sending resources can be determined to be equal to 3 by high-layer configuration and pre-configuration.

First, a case where blind retransmission reception is successful will be described. As shown in fig. 10, the transmitting end uses a blind retransmission mechanism to transmit TB1 in the first 3 resources, and the receiving end performs feedback on each reception. After the sending end sends for the 1 st time, the receiving end fails to receive and sends the feedback information of the failure of receiving; and after the 2 nd transmission of the transmitting end, the receiving end successfully receives the feedback information and transmits the feedback information of successful reception. And after receiving the transmission request, the transmitting end considers that the receiving is successful, cancels the subsequent transmission of the target transmission block and prepares for the subsequent transmission of the new TB.

The case of unsuccessful reception of blind retransmission and successful reception based on HARQ feedback is then elucidated. As shown in fig. 11, the transmitting end uses a blind retransmission mechanism to transmit TB1 in the first 3 resources, and the receiving end performs feedback on each reception. After the sending end sends for the 1 st time, the receiving end fails to receive and sends the feedback information of the failure of receiving; after the 2 nd transmission of the sending end, the receiving end fails to receive and sends the feedback information of the failure of reception; and after the 3 rd transmission by the transmitting end, the receiving end fails to receive, the feedback information of the failure in receiving is transmitted, and the blind retransmission fails to transmit the whole transmission. The sending end carries out HARQ feedback mechanism retransmission, after 4 th sending, the receiving end still does not receive successfully, and sends the feedback information of failed receiving; and the transmitting end continues to carry out retransmission of the HARQ feedback mechanism, the receiving end successfully receives the information after the 5 th transmission, and the successfully received feedback information is transmitted to the transmitting end. And after receiving the feedback information, the sending end considers that the receiving is successful, does not send for the 6 th time, and prepares for sending a subsequent new TB.

The case of unsuccessful reception of blind retransmissions, also based on HARQ feedback, is then elucidated. As shown in fig. 12, the transmitting end uses a blind retransmission mechanism to transmit TB1 in the first 3 resources, and the receiving end performs feedback on each reception. After the sending end sends for the 1 st time, the receiving end fails to receive and sends the feedback information of the failure of receiving; after the 2 nd transmission of the sending end, the receiving end fails to receive and sends the feedback information of the failure of reception; and after the 3 rd transmission by the transmitting end, the receiving end fails to receive, the feedback information of the failure in receiving is transmitted, and the blind retransmission fails to transmit the whole transmission. And the transmitting end performs HARQ feedback mechanism retransmission, after the 4 th transmission, the receiving end still fails to receive the HARQ feedback mechanism retransmission, and the transmitting end continues to perform the HARQ feedback mechanism retransmission. And after the 5 th transmission, the receiving end fails to receive and feed back the receiving failure, and the transmitting end continues to carry out the retransmission of the HARQ feedback mechanism. And after the 6 th transmission, the receiving end fails to receive and feeds back the failure to receive, and the receiving end prepares for the subsequent transmission of the new TB.

The above is the situation that feedback information is received for each transmission in blind retransmission, and the above receiving situation can obtain the result of each transmission, and realize the timeliness of information acquisition.

Optionally, in an embodiment of the present invention, transmitting the target transport block according to the second transmission resource and the HARQ feedback result includes:

and when the resource sending time corresponding to the time sequence is reached, transmitting the target transport block through the second sending resource based on a HARQ feedback mechanism.

When the target transport block is transmitted according to the second transmission resource and the HARQ feedback result, the last transmission time corresponding to the first transmission resource and the upper delay limit of the service quality need to be determined in the resource selection window, where the upper delay limit of the service quality is less than or equal to the deadline of the resource selection window. When selecting the second transmission resource, it is necessary to select between the last transmission time corresponding to the first transmission resource and the delay upper limit of the service quality, that is, the transmission time corresponding to the second transmission resource is located between the last transmission time corresponding to the first transmission resource and the delay upper limit of the service quality.

For example: and if 6 resources correspond to the resource selection window, the first 3 resources are first sending resources, and the time delay upper limit of the service quality is the time corresponding to the 5 th resource, determining the 4 th resource and the 5 th resource as second sending resources.

Wherein transmitting the target transport block through the second transmission resource based on a HARQ feedback mechanism comprises: after the target transport block is sent through one second sending resource, receiving a HARQ feedback result sent by the receiving end; and under the condition that the HARQ feedback result is that the target transmission block is not successfully received, transmitting the target transmission block through the next second transmission resource until the target transmission block is successfully transmitted or the second transmission resource is used completely.

When the target transport block is transmitted through the second transmission resource, the HARQ feedback result transmitted by the receiving end may be received after the target transport block is transmitted through one second transmission resource, and successful reception may be confirmed if the HARQ feedback result is successful reception. And under the condition that the HARQ feedback result is unsuccessful, continuing to transmit the target transport block through the next second transmission resource. Wherein the gap time between the two second transmission resources needs to be greater than or equal to RTT. And if the sent HARQ feedback result is still successful reception, continuing to send through the second sending resource until the target transport block is successfully transmitted or the second sending resource is used completely.

The above is an implementation process of the information sending method in the embodiment of the present invention, and the sending method first adopts a blind retransmission mechanism to send, and configures transmission times in blind retransmission according to service QoS, CBR or interference conditions, determines retransmission times based on an HARQ feedback mechanism according to a delay upper limit of the service QoS, and a sending end judges whether the sending of blind retransmission is successful according to the feedback condition of a receiving end, if so, prepares for subsequent TB sending, and if not, adopts the HARQ feedback mechanism to send for subsequent retransmission.

In summary, in the case of combining the HARQ feedback and the blind retransmission transmission mechanism, the transmission efficiency of the service can be ensured through the blind retransmission, and the redundant transmission is reduced through the HARQ feedback retransmission mechanism, so that the spectrum utilization rate and the transmission reliability can be improved.

An embodiment of the present invention further provides an information receiving method, applied to a receiving end, as shown in fig. 13, including:

step 1301, receiving the target TB transport block which is blindly retransmitted by the transmitting end through the first transmitting resource.

The information receiving method of the embodiment of the invention is applied to the receiving end, after the sending end selects the resources, the receiving end receives the target transmission block which is blindly retransmitted by the first sending resource by the sending end, at the moment, because the blind retransmission is adopted, the HARQ feedback time delay between adjacent resources is not considered when the sending end sends, and the receiving end does not need to send the HARQ feedback result aiming at each transmission.

Step 1302, sending feedback information representing the receiving status of the target transport block to the sending end.

After receiving the target transport block that is blindly retransmitted by the sending end through the first sending resource at the receiving end, the receiving end may send feedback information for characterizing a receiving state of the target transport block to the sending end, where the feedback information includes feedback information that the receiving is successful and feedback information that the receiving is unsuccessful.

Step 1303, receiving the target transport block transmitted by the transmitting end according to a second transmission resource and a hybrid automatic repeat request HARQ feedback result when the feedback information indicates that the target transport block is failed to be received; wherein the first transmission resource and the second transmission resource are sequentially arranged in time sequence.

If the feedback information sent to the sending end is feedback information of the reception failure of the target transport block, the sending end confirms that the blind retransmission fails, at this time, the sending end continues to send the target transport block based on the second sending resource and the HARQ feedback result, at this time, the receiving end receives the target transport block sent by the sending end based on the second sending resource and the HARQ feedback result, namely, the receiving end sends the HARQ feedback result to the sending end after each reception, when the HARQ feedback result is the reception failure of the target transport block, the sending end continues to send the target transport block through the second sending resource, and the interval time between two adjacent sending times is required to be greater than or equal to RTT.

According to the information receiving method provided by the embodiment of the invention, under the condition of combining the HARQ feedback and the blind retransmission sending mechanism, the sending efficiency of the service can be ensured through the receiving mode corresponding to the blind retransmission, the redundant receiving is reduced through the retransmission mechanism of the HARQ feedback, and the utilization rate of the frequency spectrum and the receiving reliability can be further improved.

Optionally, in an embodiment of the present invention, the feedback information includes corresponding successfully-received feedback information when the target transport block is successfully received through blind retransmission, and corresponding unsuccessfully-received feedback information when the target transport block is unsuccessfully received through blind retransmission;

sending feedback information representing the receiving state of the target transmission block to the sending end, wherein the feedback information comprises:

sending one of the feedback information for blind retransmission to the sending end; or

And sending the feedback information to the sending end in sequence aiming at each transmission in the blind retransmission.

When sending feedback information to the sending end, only one piece of feedback information may be sent for blind retransmission, where the feedback information may be feedback information of a target transport block successfully received through blind retransmission or feedback information of a target transport block unsuccessfully received through blind retransmission. And the transmitting end terminates the subsequent unfinished transmission of the target transmission block according to the received feedback information of the target transmission block successfully received through blind retransmission, transmits a new TB, and continues to transmit the target transmission block based on a retransmission mechanism of HARQ feedback and a second transmission resource according to the received feedback information of the target transmission block unsuccessfully received through blind retransmission.

When the feedback information is sent to the sending end, the feedback information sent by each group corresponding to the blind retransmission can be also aimed at, that is, the transmission times included in the blind retransmission can correspond to at least two groups, each group can correspond to one feedback information, and the groups are arranged according to the time sequence. When the receiving end transmits and receives the successful feedback information aiming at one packet (not the last packet), the transmitting end can terminate the subsequent unfinished transmission of the target transmission block and transmit the next transmission block. When the receiving end sends the feedback information of the reception failure aiming at one packet (not the last packet), the sending end can continue the transmission of each subsequent group of the target transmission block. When the receiving end sends the feedback information of the receiving failure aiming at the last packet, the sending end can continue to transmit the target transport block based on the retransmission mechanism of the HARQ feedback and the second sending resource.

When the feedback information is sent to the sending end, the feedback information can also be sent to the sending end in sequence for each transmission in blind retransmission, and the feedback information here can be feedback information of successfully receiving the target transport block or feedback information of unsuccessfully receiving the target transport block. When the receiving end transmits the feedback information of the successfully received target transport block for a certain transmission (non-last transmission) in the blind retransmission, the transmitting end can stop the subsequent unfinished transmission of the target transport block and transmit a new TB. When the receiving end sends feedback information of unsuccessfully receiving the target transport block for each transmission in the blind retransmission, the sending end can obtain the feedback information with the same number of transmission times in the blind retransmission, and the feedback information is the feedback information of unsuccessfully receiving the target transport block, and at this moment, the sending end can continue to transmit the target transport block based on the retransmission mechanism fed back by the HARQ and the second sending resource.

The process can transmit the feedback information aiming at blind retransmission in an integral, grouping or single mode, enriches the information transmitting modes, and can ensure that the transmitting end adopts different information receiving modes to realize different transmitting processes.

Optionally, in an embodiment of the present invention, sending one piece of feedback information for blind retransmission to the sending end includes:

after the target transmission block is successfully received through a certain transmission in blind retransmission, sending feedback information of successful receiving to the sending end; or

When only one feedback information is sent for blind retransmission, the successfully received feedback information can be fed back when the receiving end successfully receives the target transmission block only once in the blind retransmission, the feedback time can be immediate feedback or can be fed back after the blind retransmission is finished, the sending end can receive the feedback information sent by the receiving end immediately after the receiving end successfully receives the target transmission block, and can also receive the feedback information sent by the receiving end according to the situation of one-time successful reception after the blind retransmission is finished. When the receiving end does not successfully receive the target transport block in the blind retransmission process, the feedback information of the reception failure can be sent after the blind retransmission is finished.

The receiving end can judge the end of blind retransmission of the sending end in the following way, and prepare for feedback, for example: counting the number of received transmissions, combining the RV versions of the received data, decoding the transmission of this time in the SCI indication, and sending a blind retransmission transmission end flag (for example, setting the transmission end flag of only the last 1 time to true).

The above is a case where only one feedback information is transmitted for blind retransmission, and the transmission frequency of the feedback information can be reduced and the transmission flow can be optimized in the above transmission case.

Optionally, in an embodiment of the present invention, sending the feedback information to the sending end for each packet corresponding to blind retransmission includes:

sending feedback information corresponding to the first packet to the sending end;

When each group in the blind retransmission is sent with a feedback message, the receiving end first sends the feedback message for the first group, if the feedback message corresponding to the first group is the feedback message of the successful receiving target transmission block, the sending end can determine the successful receiving, and at this time, the sending end can send the next transmission block. When the feedback information corresponding to the first packet is the feedback information of the unsuccessfully received target transport block, the receiving end sends the feedback information corresponding to the second packet, and when the feedback information corresponding to the second packet is the feedback information of the successfully received target transport block, the sending end can determine that the receiving is successful to send the next transport block. And when the feedback information corresponding to the second grouping is the feedback information which fails to be received, the receiving end continues to send the feedback information corresponding to the third grouping until the feedback information which is successfully received is sent to the sending end.

When the receiving end does not successfully receive the target transport block, the end of the blind retransmission may be determined according to the number of groups included in the blind retransmission.

When the receiving end sends the feedback information for any packet, the receiving end can send the feedback information of the successful receiving of the group to the sending end after the target transmission block is successfully received in a certain transmission of any packet. Or after any packet transmission is finished, the receiving end sends the feedback information of successful receiving of the group to the sending end according to the condition that the target transmission block is successfully received in the group after a certain transmission. And after any packet transmission is finished, the receiving end can send the feedback information of the group of failed receiving according to the condition that any target transmission block is not successfully received.

It should be noted that the receiving end may determine that a certain group of blind retransmissions by the sending end is finished by the following method, and prepare for feedback, for example: counting the number of transmissions of the group received, combining the RV versions of the received data, decoding the transmission of the current transmission in the SCI indication as the number of transmissions in the group, and blindly retransmitting the transmission end flag of the group.

In the above, the feedback information is transmitted for each packet in blind retransmission, and in the above transmission case, the number of times of transmission of the feedback information can be relatively reduced by grouping the number of times of transmission, so that the transmission flow is optimized.

Optionally, in an embodiment of the present invention, for each transmission in the blind retransmission, sequentially sending the feedback information to the sending end includes:

according to the time sequence, the feedback information is sequentially sent to the sending end, and each transmission in the blind retransmission corresponds to one feedback information;

When one feedback message is sent for each transmission in blind retransmission, the receiving end sends the feedback messages in sequence according to time sequence, when a certain transmission successfully receives a target transmission block, the receiving end can send the feedback messages successfully received, and when a certain transmission unsuccessfully receives the target transmission block, the receiving end can send the feedback messages failed in reception.

If the receiving end does not successfully receive the target transmission block for each transmission in the blind retransmission, the end of the blind retransmission at the transmitting end can be judged according to the following modes, for example: the counted number of received transmissions, the redundancy version of the combined received data, the current number of transmissions in the blind retransmission in the SCI indication, and the blind retransmission transmission end flag, etc.

The above is the case of sending feedback information for each transmission in blind retransmission, and the sending case can be sent for the result of each transmission, so as to achieve timeliness of information synchronization.

In the above implementation process of the information receiving method according to the embodiment of the present invention, the receiving end determines whether one group or a certain retransmission of the blind retransmission and the blind retransmission is successfully received, determines whether transmission of the one group of the blind retransmission and the blind retransmission is finished, determines a time for transmitting the feedback information according to a determination result, and transmits the feedback information, so that the transmitting end determines whether to continue to transmit the target transport block according to the feedback information, and determines which mode to transmit according to the transmission times.

To sum up, the information receiving method according to the embodiment of the present invention can ensure the service transmission efficiency through the receiving mode corresponding to the blind retransmission under the condition of combining the HARQ feedback and the blind retransmission transmission mechanism, and reduce the redundant reception through the retransmission mechanism of the HARQ feedback, thereby improving the spectrum utilization rate and the reception reliability.

Referring to fig. 14, which is a schematic structural diagram of a sending device according to an embodiment of the present invention, the sending device 1400 includes: a processor 1401, a transceiver 1402, a memory 1403, a user interface 1404, and a bus interface, wherein:

in this embodiment of the present invention, the sending device 1400 further includes: a computer program stored on the memory 1403 and executable on the processor 1401. The transceiver 1402 is configured to:

blindly retransmitting the target TB transmission block through the first transmission resource;

feedback information which is sent by receiving equipment and represents the receiving state of the target transmission block is obtained;

wherein the first transmission resource and the second transmission resource are sequentially arranged in time sequence.

In fig. 14, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 1401, and various circuits, represented by memory 1403, linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1402 may be a plurality of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. For different user devices, the user interface 1404 may also be an interface capable of interfacing with a desired device externally, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 1401 is responsible for managing a bus architecture and general processing, and the memory 1403 may store data used by the processor 1401 in performing operations.

Optionally, when the target TB transport block is blindly retransmitted through the first transmission resource, the processor 1401 is configured to:

the transceiver 1402 is further configured to: and when the resource sending time corresponding to the time sequence is reached, transmitting the target transmission block through the corresponding first sending resource.

Optionally, when obtaining feedback information representing the receiving state of the target transport block sent by the receiving device, the transceiver 1402 is further configured to:

receiving the feedback information of the target transport block which is successfully received or unsuccessfully received through blind retransmission and sent by the receiving equipment;

controlling the transceiver 1402 to perform a step of transmitting the target transport block according to a second transmission resource and a hybrid automatic repeat request, HARQ, feedback result, according to the feedback information of the target transport block that is not successfully received and transmitted through the first transmission resource.

Optionally, when receiving feedback information of the target transport block successfully received through blind retransmission or unsuccessfully received through blind retransmission sent by the receiving device, the transceiver 1402 is further configured to:

receiving one piece of the feedback information sent by the receiving equipment for blind retransmission; or

And receiving the feedback information which is sent by the receiving equipment in turn aiming at each transmission in the blind retransmission.

Optionally, when receiving one of the feedback information sent by the receiving device for blind retransmission, the transceiver 1402 is further configured to:

receiving feedback information of successful receiving sent by the receiving equipment after the target transmission block is successfully received in certain transmission in blind retransmission; or

Optionally, when receiving the feedback information sent by the receiving device for the blind retransmission of the corresponding packet, the transceiver 1402 is further configured to:

receiving feedback information corresponding to a first group sent by the receiving equipment;

when the feedback information corresponding to the first group is the feedback information which fails to be received, continuously receiving the feedback information corresponding to the second group sent by the receiving equipment until the feedback information which is successfully received is received;

Optionally, when receiving the feedback information sequentially sent by the receiving device for each transmission in the blind retransmission, the transceiver 1402 is further configured to:

Optionally, when the target transport block is transmitted according to the second transmission resource and the HARQ feedback result, the processor 1401 is further configured to:

the transceiver 1402 is further configured to: and when the resource sending time corresponding to the time sequence is reached, transmitting the target transport block through the second sending resource based on a HARQ feedback mechanism.

Optionally, based on the HARQ feedback mechanism, when the target transport block is transmitted through the second transmission resource, the transceiver 1402 is further configured to:

after the target transport block is sent through one second sending resource, receiving a HARQ feedback result sent by the receiving equipment;

The sending device can implement all implementation manners in the above-described information sending method embodiment, and details are not described here in order to avoid repetition.

Referring to fig. 15, which is a schematic structural diagram of a sending apparatus according to an embodiment of the present invention, the sending apparatus 1500 includes: a processor 1501, a transceiver 1502, a memory 1503, a user interface 1504, and a bus interface, wherein:

in this embodiment of the present invention, the sending device 1500 further includes: a computer program stored on the memory 1503 and executable on the processor 1501. The transceiver 1502 is configured to:

receiving a target TB transmission block which is blindly retransmitted by a sending device through a first sending resource;

sending feedback information representing the receiving state of the target transmission block to the sending equipment;

wherein the first transmission resource and the second transmission resource are sequentially arranged in time sequence.

Optionally, the feedback information includes corresponding successfully received feedback information when the target transport block is successfully received through blind retransmission, and corresponding unsuccessfully received feedback information when the target transport block is unsuccessfully received through blind retransmission; when sending feedback information characterizing the reception status of the target transport block to the sending device, the transceiver 1502 is further configured to:

transmitting one of the feedback information for blind retransmission to the transmitting device; or

And sending the feedback information to the sending equipment in sequence aiming at each transmission in the blind retransmission.

Optionally, when sending one of the feedback information for blind retransmission to the sending device, the transceiver 1502 is further configured to:

after the target transmission block is successfully received through a certain transmission in blind retransmission, sending feedback information of successful receiving to the sending equipment; or

Optionally, when the feedback information is sent to the sending device for each packet corresponding to blind retransmission, the transceiver 1502 is further configured to:

sending feedback information corresponding to the first group to the sending equipment;

Optionally, when the feedback information is sequentially sent to the sending device for each transmission in the blind retransmission, the transceiver 1502 is further configured to:

according to the time sequence, the feedback information is sequentially sent to the sending equipment, and each transmission in the blind retransmission corresponds to one feedback information;

The receiving device can implement all implementation manners in the above-described information receiving method embodiment, and details are not repeated here in order to avoid repetition.

Referring to fig. 16, another sending apparatus 1600 according to an embodiment of the present invention includes:

a first transmission module 1601, configured to blindly retransmit a target TB transport block via a first transmission resource;

an obtaining module 1602, configured to obtain feedback information representing a receiving state of the target transport block sent by a receiving device;

a second transmission module 1603, configured to transmit the target transport block according to a second sending resource and a HARQ feedback result if the feedback information indicates that the target transport block is unsuccessfully received;

wherein the first transmission resource and the second transmission resource are sequentially arranged in time sequence.

Optionally, the first transmission module includes:

a first determining submodule, configured to determine a first transmission resource within a resource selection window according to at least one of a service quality, a channel interference condition, and a fixed bit rate; or determining a first sending resource in the resource selection window according to the configuration information;

and the first transmission submodule is used for transmitting the target transmission block through the corresponding first transmission resource when the resource transmission time corresponding to the time sequence is reached.

Optionally, the obtaining module includes:

a receiving submodule, configured to receive the feedback information, which is sent by the receiving device and successfully received or unsuccessfully received through blind retransmission, of the target transport block;

a termination submodule, configured to terminate subsequent transmission of the target transport block according to successful reception of the feedback information of the target transport block;

and the execution submodule is used for executing the step of transmitting the target transmission block according to a second transmission resource and a hybrid automatic repeat request (HARQ) feedback result according to the feedback information of the target transmission block which is transmitted by the first transmission resource and is not successfully received.

Optionally, the receiving sub-module includes:

a first receiving unit, configured to receive one piece of the feedback information sent by the receiving device for blind retransmission; or

A second receiving unit, configured to receive the feedback information sent by the receiving device for a packet corresponding to blind retransmission, where transmission times included in the blind retransmission correspond to at least two packets, each packet corresponds to one piece of the feedback information, and the packets are arranged in a time sequence; or

A third receiving unit, configured to receive the feedback information that is sent by the receiving device in sequence for each transmission in the blind retransmission.

Optionally, the first receiving unit is further configured to:

receiving feedback information of successful receiving sent by the receiving equipment after the target transmission block is successfully received in certain transmission in blind retransmission; or

Optionally, the second receiving unit is further configured to:

receiving feedback information corresponding to a first group sent by the receiving equipment;

when the feedback information corresponding to the first group is the feedback information which fails to be received, continuously receiving the feedback information corresponding to the second group sent by the receiving equipment until the feedback information which is successfully received is received;

Optionally, the third receiving unit is further configured to:

Optionally, the second transmission module includes:

a second determining submodule, configured to determine, according to a last sending time corresponding to the first sending resource and a delay upper limit of a service quality, the second sending resource in a resource selection window, where the delay upper limit of the service quality is located in a time period corresponding to the resource selection window, and a sending time corresponding to the second sending resource is located between the last sending time corresponding to the first sending resource and the delay upper limit of the service quality;

and the second transmission submodule is used for transmitting the target transmission block through the second transmission resource based on an HARQ feedback mechanism when the resource transmission time corresponding to the time sequence is reached.

Optionally, the second transmission submodule is further configured to:

after the target transport block is sent through one second sending resource, receiving a HARQ feedback result sent by the receiving equipment;

The sending device of the embodiment of the present invention can implement all the implementation manners in the above-mentioned information sending method embodiment, and is not described here again to avoid repetition.

Referring to fig. 17, another receiving apparatus 1700 according to an embodiment of the present invention includes:

a first receiving module 1701, configured to receive a target TB transport block that is blindly retransmitted by a sending device through a first sending resource;

a sending module 1702, configured to send feedback information representing the receiving state of the target transport block to the sending device;

a second receiving module 1703, configured to receive, when the feedback information is that the target transport block is failed to be received, the target transport block transmitted by the transmitting device according to a second transmission resource and a HARQ feedback result;

wherein the first transmission resource and the second transmission resource are sequentially arranged in time sequence.

a first sending submodule, configured to send one piece of the feedback information for blind retransmission to the sending device; or

A second sending submodule, configured to send the feedback information to the sending device for each packet corresponding to blind retransmission, where transmission times included in the blind retransmission correspond to at least two packets, and the packets are arranged according to a time sequence; or

And the third sending submodule is used for sequentially sending the feedback information to the sending equipment for each transmission in the blind retransmission.

Optionally, the first sending submodule is further configured to:

after the target transmission block is successfully received through a certain transmission in blind retransmission, sending feedback information of successful receiving to the sending equipment; or

Optionally, the second sending submodule is further configured to:

sending feedback information corresponding to the first group to the sending equipment;

Optionally, the third sending submodule is further configured to:

according to the time sequence, the feedback information is sequentially sent to the sending equipment, and each transmission in the blind retransmission corresponds to one feedback information;

The receiving device of the embodiment of the present invention can implement all implementation manners in the above-mentioned information receiving method embodiment, and details are not described here again in order to avoid repetition.

In the embodiment of the present invention, the sending end is equivalent to a sending device, and the receiving end is equivalent to a receiving device.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment of the present invention.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a base station) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.

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