CN113517955B

CN113517955B - Information transmitting and receiving method, transmitting device and receiving device

Info

Publication number: CN113517955B
Application number: CN202010280835.2A
Authority: CN
Inventors: 沈天珺; 赵丽; 刘龙山; 赵锐
Original assignee: CICTCI Technology Co Ltd
Current assignee: Datang Gaohong Zhilian Technology Chongqing Co ltd
Priority date: 2020-04-10
Filing date: 2020-04-10
Publication date: 2024-04-26
Anticipated expiration: 2040-04-10
Also published as: CN113517955A

Abstract

The invention provides an information sending and receiving method, a sending device and a receiving device, wherein the information sending method comprises the following steps: blind retransmission of the target TB transport block through the first transmission resource; acquiring feedback information representing a receiving state of a target transmission block sent by a receiving end; transmitting the target transport block according to the second transmission resource and the 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. The invention combines the HARQ feedback and the transmission mechanism of the blind retransmission, can ensure the transmission efficiency of the service through the blind retransmission, and can reduce redundant transmission through the retransmission mechanism of the HARQ feedback, thereby improving the utilization rate of the frequency spectrum and the reliability of the transmission.

Description

Information transmitting and receiving method, transmitting device and receiving device

Technical Field

The present invention relates to the field of mobile communications technologies, and in particular, to an information sending and receiving method, a sending device and a receiving device.

Background

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

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

Disclosure of Invention

The embodiment of the invention provides an information sending and receiving method, sending equipment and receiving equipment, which are used for solving the problems that the utilization efficiency of a frequency spectrum is low and the maximum retransmission time is easy to occur in a retransmission mechanism in the prior art.

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

Blind retransmission of the target TB transport block through the first transmission resource;

acquiring feedback information representing the receiving state of the target transmission block, wherein the feedback information is sent by a receiving end;

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.

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

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

And when the resource sending time corresponding to the time sequence arrives, the target transmission block is transmitted through the corresponding first sending resource.

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

Receiving the feedback information which is sent by the receiving end and is successfully received or not successfully received by the target transport block through blind retransmission;

terminating the subsequent transmission of the target transport block according to the feedback information of the target transport block successfully received;

And according to the unsuccessful reception of the feedback information of the target transport block sent by the first sending resource, executing the step of transmitting the target transport block according to a second sending resource and a hybrid automatic repeat request (HARQ) feedback result.

Optionally, receiving the feedback information sent by the receiving end and successfully received or unsuccessfully received by the blind retransmission, where the feedback information includes:

Receiving one feedback message sent by the receiving end aiming at blind retransmission; or alternatively

Receiving the feedback information sent by the receiving end aiming at 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 feedback information, and the packets are arranged according to time sequence; or alternatively

And receiving the feedback information which is sequentially sent by the receiving terminal for each transmission in the blind retransmission.

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

Receiving feedback information of successful reception sent by the receiving end after successful reception of the target transport block by a certain transmission in blind retransmission; or alternatively

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

And receiving feedback information of failure in receiving, which is sent by the receiving terminal after the blind retransmission is finished and when any one of the target transport blocks is not successfully received.

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

receiving feedback information corresponding to the first packet sent by the receiving end;

When the feedback information corresponding to the first packet is feedback information of failure in receiving, continuing to receive feedback information corresponding to the second packet sent by the receiving end until receiving feedback information of successful receiving;

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

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

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

Receiving the feedback information 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 transport block according to a certain transmission in the blind retransmission, the sending end receives feedback information of successful reception sent by the receiving end, and when the receiving end does not successfully receive the target transport block according to a certain transmission in the blind retransmission, the sending end receives feedback information of unsuccessful reception sent by the receiving end;

under the condition that the sending end does not receive feedback information which is successfully received for each transmission in the blind retransmission, the sending end determines that the blind retransmission is ended through the transmission times included in the blind retransmission or a blind retransmission ending mark carried in the feedback information.

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

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

and when the resource sending time corresponding to the time sequence arrives, transmitting the target transmission block through the second sending resource based on an HARQ feedback mechanism.

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

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

And under the condition that the HARQ feedback result is that the target transport block is not successfully received, the target transport block is sent through the next second sending resource until the target transport block is successfully transmitted or the second sending resource is used.

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 transport 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 transport 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 transport block fails to be received;

Optionally, the feedback information includes feedback information of successful reception corresponding to successful reception of the target transport block by blind retransmission, and feedback information of unsuccessful reception corresponding to unsuccessful reception of the target transport block by blind retransmission;

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

sending one piece of feedback information aiming at blind retransmission to the sending end; or alternatively

For each packet corresponding to the blind retransmission, sending the feedback information to the sending end, wherein the transmission times included in the blind retransmission correspond to at least two packets, and the packets are arranged according to time sequence; or alternatively

And for each transmission in the blind retransmission, the feedback information is sequentially sent to the sending end.

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

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

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

When the blind retransmission is determined to be finished, sending feedback information of failure in reception to the sending terminal according to the condition that any one of the target transport blocks is not successfully received;

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

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

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

When the feedback information corresponding to the first packet is feedback information of failure in receiving, continuing to send feedback information corresponding to the second packet to the sending end until the feedback information of successful receiving is sent to the sending end, wherein the first packet and the second packet are sequentially arranged according to time sequence;

For each packet, when a certain transmission in the packet successfully receives the target transport block, sending feedback information of the received success to the sending end; or for each packet, when the blind retransmission is determined to be finished, the feedback information of the group of successful reception is sent to the sending end according to the condition that the target transmission block is successfully received by a certain transmission in the group; or for each packet, when the blind retransmission is determined to be finished, according to the condition that any one of the target transport blocks is not successfully received in the group, sending feedback information of failure in the group to the sending end;

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

Optionally, for each transmission in the blind retransmission, the feedback information is sequentially sent to the sending end, including:

sequentially sending the feedback information to the sending 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 transport block according to a certain transmission in the blind retransmission, the receiving end sends feedback information of successful reception, and when the receiving end does not successfully receive the target transport block according to a certain transmission in the blind retransmission, the receiving end sends feedback information of failed reception;

and under the condition that the target transport block is not successfully received for each transmission in the blind retransmission, the receiving end determines that the blind retransmission is ended 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 a blind retransmission transmission ending mark.

An embodiment of the present invention provides a transmitting apparatus, including: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor, the transceiver for:

Acquiring feedback information representing the receiving state of the target transmission block, which is sent by receiving equipment;

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

The transceiver is also for: and when the resource sending time corresponding to the time sequence arrives, the target transmission block is transmitted 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 is further configured to:

Receiving the feedback information which is sent by the receiving equipment and is successfully received or unsuccessfully received by blind retransmission;

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

And controlling the transceiver to execute the 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 unsuccessful reception of the feedback information of the target transport block transmitted through the first transmission resource.

Optionally, when receiving the feedback information sent by the receiving device and successfully received or unsuccessfully received by the blind retransmission, the transceiver is further configured to:

Receiving one feedback message sent by the receiving device aiming at blind retransmission; or alternatively

Receiving the feedback information sent by the receiving device aiming at 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 feedback information, and the packets are arranged according to time sequence; or alternatively

And receiving the feedback information which is sequentially sent by the receiving equipment for each transmission in the blind retransmission.

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

receiving feedback information of successful reception sent by the receiving device after successful reception of the target transport block by a certain transmission in blind retransmission; or alternatively

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

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

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 packet sent by the receiving equipment;

when the feedback information corresponding to the first packet is feedback information of failure in receiving, continuing to receive feedback information corresponding to the second packet sent by the receiving equipment until receiving feedback information of successful receiving;

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

And under the condition that the sending equipment does not receive the feedback information which is successfully received, the sending equipment determines that the blind retransmission is ended according to the group number included in the blind retransmission or a blind retransmission ending mark carried in the feedback information.

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:

receiving the feedback information 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 transport 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 does not successfully receive the target transport block according to a certain transmission in the blind retransmission, the sending device receives feedback information of unsuccessful reception sent by the receiving device;

And under the condition that the sending equipment does not receive the feedback information which is successfully received for each transmission in the blind retransmission, the sending equipment determines that the blind retransmission is ended through the transmission times included in the blind retransmission or a blind retransmission ending mark carried in the feedback information.

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:

the transceiver is also for: and when the resource sending time corresponding to the time sequence arrives, transmitting the target transmission block through the second sending resource based on an HARQ feedback mechanism.

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

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

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

Receiving a target TB transport block which is blindly retransmitted by a transmitting device through a first transmitting resource;

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

Receiving the target transport block transmitted by the transmitting device 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;

When transmitting feedback information characterizing the reception state of the target transport block to the transmitting device, the transceiver is further configured to:

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

For each packet corresponding to the blind retransmission, sending the feedback information to the sending equipment, wherein the transmission times included in the blind retransmission correspond to at least two packets, and the packets are arranged according to time sequence; or alternatively

And for each transmission in the blind retransmission, the feedback information is sequentially sent to the sending equipment.

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

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

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

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

The receiving device determines that the blind retransmission is finished according to at least one of the counted number of times of received transmission, the redundancy version of the combined received data, the current transmission number of times of blind retransmission in the indication of the through link control information SCI and a blind retransmission transmission end mark.

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 packet to the sending equipment;

when the feedback information corresponding to the first packet is feedback information of failure in receiving, continuing to send feedback information corresponding to the second packet to the sending equipment until the feedback information of successful receiving is sent to the sending equipment, wherein the first packet and the second packet are sequentially arranged according to time sequence;

For each packet, when a certain transmission in the packet successfully receives the target transport block, sending feedback information of the received reception success to the sending equipment; or for each packet, when the blind retransmission is determined to be finished, the feedback information of the group of successful reception is sent to the sending equipment according to the condition that the target transmission block is successfully received by a certain transmission in the group; or for each packet, when the blind retransmission is determined to be finished, according to the condition that any one of the target transport blocks is not successfully received in the group, sending feedback information of failure in the group reception to the sending equipment;

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

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

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

When the receiving equipment successfully receives the target transport block according to a certain transmission in the blind retransmission, the receiving equipment sends feedback information of successful reception, and when the receiving equipment does not successfully receive the target transport block according to a certain transmission in the blind retransmission, the receiving equipment sends feedback information of failed reception;

and under the condition that the target transport block is not successfully received for each transmission in the blind retransmission, the receiving device determines that the blind retransmission is ended 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 a blind retransmission transmission ending mark.

The embodiment of the invention also provides a transmitting device, which comprises:

the first transmission module is used for blindly retransmitting the target TB transmission block through the first transmission resource;

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

The second transmission module is used for transmitting the target transport block according to a second sending 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;

The embodiment of the invention also provides a receiving device, which comprises:

The first receiving module is used for receiving the target TB transport block which is retransmitted by the sending equipment through the first sending resource blindly;

The sending module is used for sending feedback information representing the receiving state of the target transmission block to the sending equipment;

The second receiving module is configured to receive, when the feedback information indicates that the target transport block fails to receive, the target transport block that is transmitted by the transmitting device according to a second transmission resource and a hybrid automatic repeat request HARQ feedback result;

The embodiment of the present invention also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the above-described information transmission method or implements the steps of the above-described information reception method.

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

Drawings

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

fig. 2 shows a transmission/reception schematic diagram corresponding to a retransmission transmission mechanism based on HARQ feedback;

FIG. 3 is a schematic diagram of an information sending method according to an embodiment of the present invention;

fig. 4 shows one of schematic diagrams of a sending end and a receiving end interacting feedback information for blind retransmission according to an embodiment of the present invention;

Fig. 5 shows a second schematic diagram of a feedback information interaction between a sending end and a receiving end for blind retransmission according to an embodiment of the present invention;

Fig. 6 shows a schematic diagram of a sending end and a receiving end interacting feedback information for blind retransmission and feedback information for an HARQ mechanism according to an embodiment of the present invention;

Fig. 7 shows one of schematic diagrams of interactive feedback information of each packet for 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 for each packet interactive feedback information of blind retransmission according to the embodiment of the present invention;

Fig. 9 is a schematic diagram showing that a sending end and a receiving end exchange feedback information for each packet of blind retransmission and exchange feedback information for an HARQ mechanism according to an embodiment of the present invention;

fig. 10 shows one of schematic diagrams of the sending end and the receiving end for each transmission interaction feedback information according to an embodiment of the present invention;

FIG. 11 is a diagram showing a second embodiment of the present invention in which the sending end and the receiving end exchange feedback information for each transmission;

FIG. 12 is a third schematic diagram of the sending end and the receiving end for each transmission of interactive feedback information according to the embodiment of the present invention;

FIG. 13 is a schematic diagram showing 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 diagram of another configuration of a transmitting device according to an embodiment of the present invention;

fig. 17 is a schematic diagram of another structure of a receiving device according to an embodiment of the present invention.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The design idea of the information sending and receiving method of the embodiment of the invention is as follows: due to the retransmission transmission mechanism based on HARQ (Hybrid automatic repeat request ) feedback, the transmitting end needs to wait for HARQ feedback delay after transmission to ensure processing feedback of the receiving end. If the sending efficiency of most resources is to be ensured, blind retransmission sending can be performed first, then the sending end checks the feedback of the receiving end, if the receiving end receives the resources sent by the blind retransmission mechanism, the sending is successful, the next sending is prepared, if the receiving end does not successfully receive the resources, the sending with the HARQ feedback mechanism is flexibly adopted for each subsequent sending, and 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 the resource selection window (where the Time interval between every two adjacent resources needs to be greater than or equal to RTT (Round Trip Time)), the resource is transmitted according to the Time sequence, and after each transmission, the receiving end needs to feedback HARQ information according to the receiving situation. If the receiving end fails to feed back the receiving, the transmitting end continues to transmit the TB unfinished transmission; if the receiving end feedback reception is successful, 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, ensure high spectrum utilization rate, and ensure the utilization rate of resources only by the retransmission mechanism when necessary. Therefore, by combining a blind retransmission mechanism and a HARQ feedback retransmission mechanism, the service transmission efficiency can be ensured by blind retransmission, and redundant transmission is reduced by the HARQ feedback retransmission mechanism, so that the utilization rate of a frequency spectrum and the reliability of transmission can be improved. The information transmitting method and the information receiving method according to the embodiments of the present invention are described below.

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 the sending end, when the sending end selects the resources, the sending end needs to select the first sending resource and the second sending resource, wherein the first sending resource is used for carrying out blind retransmission, and when the second sending resource is adopted for carrying out transmission, HARQ feedback time delay between adjacent resources needs to be considered. After the first transmission resource is selected, the target transport block can be blindly retransmitted through the first transmission resource, wherein the blind retransmission comprises at least two times of transmission, and the number of the corresponding first transmission resources is at least two.

Step 302, obtaining feedback information representing the receiving state of the target transport block, which is sent by the receiving end.

After the target transport block is sent in a blind retransmission mode, feedback information sent by a receiving end aiming at the receiving state of the target transport block can be obtained, wherein the feedback information comprises 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 fails to be 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 target transport block receiving failure, the target transport block can be continuously transmitted through the second sending resource at this time, when the transmission is performed through the second sending resource, the HARQ feedback time delay between adjacent resources needs to be considered, when the HARQ feedback result is that the reception fails, the target transport block needs to be sent again, namely after one second sending resource is adopted to transmit the target transport block, if the HARQ information sent by the receiving end is that the reception fails, the other second sending resource can be adopted to transmit the target transport block, and the HARQ RTT interval exists between the two second sending 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 will be described of an implementation procedure of a retransmission mechanism combining a blind retransmission mechanism and HARQ feedback, and in resource selection, it is assumed that s=n+m resources need to be selected in total for transmission, where n and m are positive integers, and n resources (first transmission resources) are arranged from front to back in time sequence compared to m resources (second transmission resources). And for the first n resources, blind retransmission transmission is carried out, the HARQ feedback time delay between adjacent resources is not required to be considered, and the blind retransmission transmission can be directly transmitted when the resource transmission time corresponding to the time sequence arrives. If the feedback of the receiving end is successful, the subsequent incomplete transmission of the TB is terminated; otherwise, continuing the subsequent transmission of the TB. If the receiving end receives the receiving success information, the sending end sends the HARQ feedback delay effect of 2 times of adjacent sending to the remaining m resources, and the sending end sends the resource 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 blind retransmission, and redundant sending is reduced through the retransmission mechanism of the HARQ feedback, so that the utilization rate of a frequency spectrum and the sending reliability can be improved.

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

When the target transport block is blindly retransmitted through the first transmission resource, the first transmission resource needs to be determined, and when the first transmission resource is determined, one or several factors such as QoS (Quality of Service ) of service, interference condition of a channel, CBR (constant bit rate, fixed bit rate) and the like need to be considered, and the number of the first transmission resource is determined according to the at least one factor. The first transmission resources may also be determined according to a higher layer configuration or a 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 by the blind retransmission method.

After the first transmission resource is determined, when the resource transmission time corresponding to the time sequence arrives, 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.

According to the process, the first transmission resource is determined in the resource selection window, so that the target transport block can be transmitted by using the first transmission resource in a blind retransmission mode, and further, the service transmission efficiency can be 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:

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

The transmitting end can terminate the subsequent transmission of the target transport block according to the feedback information of the target transport block successfully received by blind retransmission, or can transmit the target transport block by adopting a retransmission transmitting mechanism of the second transmission resource and HARQ feedback according to the feedback information of the target transport block which is not successfully received and transmitted by the first transmission resource.

According to the process, the sending end can determine whether to continue sending the target transmission block according to feedback information of different contents sent by the receiving end, and different processes are implemented according to the feedback information.

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

When receiving feedback information sent by a receiving end, the receiving end can acquire one feedback information sent by the receiving end aiming at blind retransmission, namely the receiving end only sends one feedback information aiming at blind retransmission, wherein the feedback information can be the feedback information of a target transport block successfully received through blind retransmission or the feedback information of a target transport block unsuccessfully received through 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 follow-up 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 continuously transmits the target transport block based on a retransmission mechanism and a second sending resource fed back by HARQ.

When receiving feedback information sent by the receiving end, the receiving end can also obtain feedback information sent by the receiving end for each packet corresponding to the blind retransmission, namely, the transmission times included by 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 time sequence. When the transmitting end receives the feedback information of successful receiving of the receiving end for one packet (not the last packet), the transmitting end can terminate the follow-up unfinished transmission of the target transport block and transmit the next transport block. When the transmitting end receives feedback information of the receiving end for failure of receiving one packet (not the last packet), the transmitting end can continue transmission of each subsequent group of the target transport block. When the transmitting end receives the feedback information of the receiving end for the receiving failure of the last packet, the target transport block can be continuously transmitted based on the retransmission mechanism of the HARQ feedback and the second transmitting resource.

When receiving feedback information sent by a receiving end, the receiving end can also sequentially receive the feedback information sent by the receiving end aiming at each transmission in blind retransmission, namely the receiving end sends the feedback information aiming at each transmission in blind retransmission, wherein the feedback information can be the feedback information of a successfully received target transport block or the feedback information of an unsuccessfully received target transport block. When the transmitting end receives the feedback information of the target transport block successfully received by a certain transmission (not last time) in the blind retransmission fed back by the receiving end, the transmitting end can stop the follow-up unfinished transmission of the target transport block and transmit a new TB. When the receiving end does not successfully receive the target transport block in each transmission in the blind retransmission, the transmitting end can acquire feedback information with the same number of transmission times as in the blind retransmission, and the feedback information is the feedback information of the unsuccessfully received target transport block, and at this time, the transmitting end can continuously transmit the target transport block based on a retransmission mechanism and a second transmission resource of HARQ feedback.

The above process can receive feedback information for blind retransmission in an integral, grouping or single mode, enriches information receiving modes, and can realize different sending flows according to different information receiving modes.

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

For the case that only one feedback information is received in the blind retransmission, the receiving end can feedback the feedback information which is successfully received when the receiving end successfully receives the target transport block only once in the blind retransmission, the feedback time can be immediate feedback or feedback after the blind retransmission is finished, the sending end can receive the feedback information which is immediately sent by the receiving end after the target transport block is successfully received, and the receiving end can also receive the feedback information which is sent by the receiving end according to the condition of once 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 transmitting end can receive feedback information of failure in receiving sent by the receiving end after the blind retransmission is finished.

The following exemplifies 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 transmission resources is n, and the number of the second transmission resources is m. The number n of the first transmission resources corresponding to the blind retransmission may be determined to be 3 according to any one of QoS of traffic, measured channel interference, and measured CBR, or the number n of the first transmission resources may be determined to be 3 by a higher layer configuration, a pre-configuration. M is equal to 3, which may be determined based on the upper latency limit of the traffic QoS, or by higher layer configuration or pre-configuration.

Firstly, a case that a receiving end immediately feeds back to a transmitting end after successfully receiving a target transport block will be described. Referring to fig. 4, the transmitting end uses a blind retransmission mechanism to transmit TB1 in the first 3 resources, continuously waits for the receiving end to perform feedback, and the receiving end knows that the receiving end receives blind retransmission by counting the number of times of receiving, fails to analyze the first data packet and does not transmit feedback; and receiving the second data packet, analyzing successfully, and sending a successful feedback of the receiving. 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.

Then, the case of transmitting feedback information of successful reception after the blind retransmission is completed will be described. Referring to fig. 5, the transmitting end transmits TB1 on the first 3 resources and waits for the receiving end to perform feedback. The receiving end obtains the data packet, obtains the blind retransmission end mark by analyzing the received SCI (Sidelink Control Information, through link control information), knows the blind retransmission end of the sending end according to the blind retransmission end mark, counts the 2 nd successful receiving (no data decoding after successful receiving) in 3 sending, and can consider the successful receiving and send the successful receiving feedback. And after receiving the feedback, the transmitting end considers that the transmission is successful and prepares for the transmission of the subsequent TB.

Then, a case of transmitting feedback information of failure in reception after the blind retransmission is completed will be described. Referring to fig. 6, after the transmitting end transmits TB1 for the first 3 resources, the transmitting end waits for the receiving end to perform feedback. The receiving end finds that the blind retransmission is finished through statistics of RV (Redundancy Version ) of the received data, and 3 times of transmission in the blind retransmission are not successfully received, and feedback information of failure in receiving is fed back to the sending end.

The transmitting end continues to retransmit the TB1 based on the HARQ feedback mechanism. After the 4 th transmission, the receiving end still fails to receive successfully, the feedback receiving 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 receives successfully, and transmits feedback information of successful reception to the transmitting end. After receiving the feedback information, the transmitting end considers that the receiving is successful, does not transmit for the 6 th time, and prepares for subsequent new TB transmission.

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

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

For the case of grouping the transmission times included in the blind retransmission, the feedback information sent by the receiving end aiming at the first grouping can be received first, if the feedback information corresponding to the first grouping is the feedback information of the successfully received target transport block, the successful receiving can be determined, and the sending end sends the next transport block. When the feedback information corresponding to the first packet is the feedback information of the unsuccessfully received target transport block, 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 successfully received, the next transport block can be determined to be successfully received and sent. And when the feedback information corresponding to the second packet is feedback information of failure in receiving, continuing to receive the feedback information corresponding to the third packet until receiving the feedback information of successful receiving.

And under the condition that the sending end does not receive the feedback information which is successfully received, the blind retransmission can be determined to be ended according to the group number included in the blind retransmission, and the blind retransmission can be determined to be ended according to a blind retransmission ending mark carried in the feedback information.

When the transmitting end receives feedback information aiming at any packet, the transmitting end can receive the feedback information which is received successfully by the receiving end after a certain transmission in any packet successfully receives the target transmission block. And after the transmission of any packet is finished, the receiving end can send the feedback information of the received success according to the condition that the target transmission block is successfully received by a certain transmission in the group, and the sending end receives the feedback information sent by the receiving end. And after the transmission of any packet is finished, the receiving end can send feedback information of the failure of the group of the receiving end 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 exemplifies the case that the transmitting end receives feedback information for the packets corresponding to the blind retransmission. Assuming that the transmitting end transmits S resources in total, the value of S is 6, the number of the first transmission resources is n, and the number of the second transmission resources is m. Assuming that the number of transmission times n corresponding to the blind retransmission is equal to 4 according to the service QoS, the measured channel interference and the CBR, or the number of transmission times n corresponding to the blind retransmission is equal to 4 by the higher layer configuration, the number of transmission times corresponding to the blind retransmission is divided into 2 groups.

Firstly, a case that a receiving end immediately feeds back to a transmitting end after successfully receiving a 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, and knows that the first group is sent completely by counting the receiving times, and the first group is not the last group, and sends feedback information of failed receiving. And the sending end considers that the first group of sending fails after receiving the feedback information of the receiving end, and performs the first transmission of the second group, and when the receiving end receives the feedback information successfully, the sending end sends the feedback information successfully received. And the sending end considers successful receiving after receiving the feedback information, cancels the subsequent sending of the target transmission block and prepares for sending the 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 first data packet and analyzes the data failure without sending feedback, receives the second data packet, and knows that the first group is sent completely by analyzing the packet blind retransmission end mark, and the group is not the last group, and sends feedback information of the failure in receiving. After receiving feedback information from the receiving end, the sending end considers that the first group of sending fails, sends the second group of first transmission, and the receiving end receives the first transmission successfully. The sending end sends the second group of second transmission, the receiving end does not analyze the data any more, the receiving end obtains the packet blind retransmission end mark through analyzing SCI, determines that the second group is sent completely, and sends the feedback information of successful receiving. And the sending end considers successful receiving after receiving the feedback information, cancels the subsequent sending of the target transmission block and prepares for the subsequent sending of the new TB.

And then, the case that the blind retransmission fails to be transmitted based on the HARQ feedback mechanism is explained. 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 analyzes the data failure without sending feedback, receives the second data packet, and the receiving end knows that the first group is sent completely by counting the receiving times, and the first group is not the last group and sends feedback information of the receiving failure. After receiving feedback information from the receiving end, the sending end considers that the first group of sending fails, sends the second group of first transmission, and the receiving end sends the second group of second transmission, and the receiving end receives the failure, and the receiving end knows that the second group of sending is finished by counting the receiving times and sends the feedback information of the failure. And the sending end considers the blind retransmission failure after receiving the feedback information, and then sends the blind retransmission failure by the HARQ feedback mechanism. After the 5 th transmission, the receiving end still fails to receive successfully, feeds back the information of the failure in reception, the transmitting end continues to transmit the HARQ feedback mechanism, the interval time between the 6 th transmission and the 5 th transmission is longer than the RTT, the receiving end receives successfully after the 6 th transmission, and transmits the feedback information of the successful reception to the transmitting end. And after receiving the feedback information, the transmitting end considers that the receiving is successful and prepares for the subsequent transmission of the new TB.

The above is a case where feedback information is received for each packet in blind retransmission, and in the above receiving case, the number of times of transmission of the feedback information can be relatively reduced by performing the packet of the number of times of transmission, and the transmission flow can be optimized.

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

And aiming at the condition that feedback information is received in each transmission in blind retransmission, the feedback information which is sequentially sent by the receiving end according to the time sequence can be received, when a target transmission block is successfully received in a certain transmission, the feedback information which is successfully received and sent by the receiving end can be received, and when the target transmission block is not successfully received in a certain transmission, the feedback information which is failed to be received and sent by the receiving end can be received.

If the sending end receives feedback information of failure in receiving for each transmission in the blind retransmission, the end of the blind retransmission can be determined according to the transmission times included in the blind retransmission, or the end of the blind retransmission can be determined according to a blind retransmission end mark carried in the feedback information.

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

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

The case where the blind retransmission reception is unsuccessful and the reception based on the HARQ feedback is successful will be described. As shown in fig. 11, the transmitting end transmits TB1 using a blind retransmission mechanism in the first 3 resources, and the receiving end feeds back each reception. After the 1 st transmission, the receiving end fails to receive and sends feedback information of the failure; after the 2 nd transmission, the receiving end fails to receive and transmits feedback information of the failure; after the 3 rd transmission of the transmitting end, the receiving end fails to receive, the feedback information of the receiving failure is transmitted, and the blind retransmission fails to integrally transmit. The transmitting end retransmits the HARQ feedback mechanism, and after the 4 th transmission, the receiving end still fails to receive the feedback information of failure in receiving; and the transmitting end continuously carries out HARQ feedback mechanism retransmission, the receiving end receives successfully after the 5 th transmission, and the feedback information of successful reception is transmitted to the transmitting end. After receiving the feedback information, the transmitting end considers that the receiving is successful, does not transmit for the 6 th time, and prepares for the subsequent transmission of the new TB.

The case where the blind retransmission reception is unsuccessful and the reception is unsuccessful based on the HARQ feedback will be described. As shown in fig. 12, the transmitting end transmits TB1 using a blind retransmission mechanism in the first 3 resources, and the receiving end feeds back each reception. After the 1 st transmission, the receiving end fails to receive and sends feedback information of the failure; after the 2 nd transmission, the receiving end fails to receive and transmits feedback information of the failure; after the 3 rd transmission of the transmitting end, the receiving end fails to receive, the feedback information of the receiving failure is transmitted, and the blind retransmission fails to integrally transmit. The transmitting end carries out HARQ feedback mechanism retransmission, after the 4 th transmission, the receiving end still fails to receive successfully, the feedback receiving fails, and the transmitting end continues to carry out HARQ feedback mechanism retransmission. After the 5 th sending, the receiving end fails to receive, the feedback receiving fails, and the sending end continues to retransmit by the HARQ feedback mechanism. After the 6 th transmission, the receiving end fails to receive, feeds back the failure to receive, and prepares for the subsequent transmission of the new TB.

The above is the case of receiving feedback information for each transmission in blind retransmission, and the above receiving case can acquire the result of each transmission, thereby realizing 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:

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 delay upper limit of the service quality are required to be determined in the resource selection window, wherein the delay upper limit of the service quality is smaller than or equal to the deadline of the resource selection window. When the second transmission resource is selected, the last transmission time corresponding to the first transmission resource and the delay upper limit of the service quality need to be selected, 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 6 resources are correspondingly arranged in the resource selection window, the first 3 resources are first transmission resources, the time delay upper limit of the service quality is the time corresponding to the 5 th resource, and the 4 th and 5 th resources are determined to be second transmission resources.

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

When the target transport block is transmitted through the second transmission resource, the HARQ feedback result sent 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 if the HARQ feedback result is unsuccessful reception, the target transport block needs to be continuously transmitted through the next second transmission resource. Wherein the interval time between the two second transmission resources needs to be greater than or equal to RTT. And if the transmitted HARQ feedback result is still successful, continuing to transmit through the second transmission resource until the transmission of the target transmission block is successful or finishing the use of the second transmission resource.

The foregoing is an implementation procedure of the information sending method in the embodiment of the present invention, firstly, a blind retransmission mechanism is adopted to send, and the configuration of the transmission number in the blind retransmission is performed according to the service QoS, CBR or interference condition, the retransmission number based on the HARQ feedback mechanism is determined according to the delay upper limit of the service QoS, the sending end judges whether the blind retransmission is successful or not according to the feedback condition of the receiving end, if successful, the sending end prepares for the subsequent TB to send, and if unsuccessful, the sending end adopts the HARQ feedback mechanism to send for the subsequent retransmission.

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

The embodiment of the invention also provides an information receiving method, which is applied to a receiving end, as shown in fig. 13, and comprises the following steps:

Step 1301, receiving a target TB transport block that is blindly retransmitted by the transmitting end through the first transmission resource.

The information receiving method of the embodiment of the invention is applied to the receiving end, after the sending end selects the resource, the receiving end receives the target transmission block which is blindly retransmitted by the sending end through the first sending resource, at the moment, the sending end does not consider HARQ feedback time delay between adjacent resources when sending because of blind retransmission, 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 state of the target transport block to the sending end.

After the receiving end receives the target transport block which is blindly retransmitted by the transmitting end through the first transmission resource, feedback information used for representing the receiving state of the target transport block can be sent to the transmitting end, wherein the feedback information comprises feedback information of successful receiving and feedback information of failed receiving.

Step 1303, receiving, by the transmitting end, the target transport block transmitted according to the second transmission resource and the HARQ feedback result when the feedback information indicates 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.

If the feedback information sent to the sender is feedback information of failure in receiving the target transport block, the sender confirms that blind retransmission fails, at this time, the sender can continue to send the target transport block based on the second sending resource and the HARQ feedback result, at this time, the receiver receives the target transport block sent by the sender based on the second sending resource and the HARQ feedback result, that is, the receiver can send the HARQ feedback result to the sender after each receiving, when the HARQ feedback result is that the target transport block fails in receiving, the sender can continue to send the target transport block through the second sending resource, and the interval time between two adjacent sending needs to be greater than or equal to RTT.

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

Optionally, in an embodiment of the present invention, the feedback information includes feedback information corresponding to successful reception when the target transport block is successfully received by blind retransmission, and feedback information corresponding to unsuccessful reception when the target transport block is not successfully received by blind retransmission;

When sending feedback information to the sending end, only one feedback information can be sent for blind retransmission, wherein the feedback information can be the feedback information of the target transport block successfully received through blind retransmission or the feedback information of the target transport block unsuccessfully received through blind retransmission. And the transmitting end stops the follow-up unfinished transmission of the target transport block according to the received feedback information of the target transport block successfully received through the blind retransmission, transmits the new TB, and continues to transmit the target transport block based on a retransmission mechanism of HARQ feedback and a second transmission resource according to the received feedback information of the target transport block unsuccessfully received through the blind retransmission.

When sending feedback information to the sending end, feedback information sent by each packet corresponding to the blind retransmission can be sent respectively, namely, 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 time sequence. When the receiving end sends the feedback information of successful reception to one packet (not the last packet), the sending end can stop the follow-up unfinished sending of the target transport block and send the next transport block. When the receiving end sends feedback information of failure in receiving for one packet (not the last packet), the sending end can continue transmission of each group of the target transport block. When the receiving end sends the feedback information of the failure in receiving for 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 transmission resource.

When sending feedback information to the sending end, the feedback information can be sent to the sending end in turn according to each transmission in the blind retransmission, wherein the feedback information can be the feedback information of the successfully received target transport block or the feedback information of the unsuccessfully received target transport block. When the receiving end transmits the feedback information of the successfully received target transport block for a certain transmission (not the last time) in the blind retransmission, the transmitting end can stop the subsequent unfinished transmission of the target transport block and transmit the new TB. When the receiving end sends feedback information of the unsuccessfully received target transport blocks for each transmission in the blind retransmission, the sending end can acquire the feedback information with the same number of transmission times as the blind retransmission, and the feedback information is the feedback information of the unsuccessfully received target transport blocks, and at this time, the sending end can continuously transmit the target transport blocks based on a retransmission mechanism and a second sending resource of HARQ feedback.

The above process can send feedback information to blind retransmission in a whole, grouping or single mode, enriches information sending modes, and can enable a sending end to adopt different information receiving modes to realize different sending flows.

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

When only one feedback information is sent for the blind retransmission, the receiving end can feed back the feedback information which is successfully received when the receiving end only successfully receives the target transport block once in the blind retransmission, the feedback time can be immediate feedback or feedback after the blind retransmission is finished, the sending end can receive the feedback information which is immediately sent by the receiving end after the target transport block is successfully received, and the receiving end can also receive the feedback information which is sent by the receiving end according to the condition of once 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 failed receiving can be sent after the blind retransmission is finished.

The receiving end may determine that the blind retransmission of the transmitting end is finished in the following manner, and prepare to perform feedback, for example: counting the number of received transmissions, merging the RV version of the received data, decoding what number of transmissions the SCI indicates are about this transmission, blind retransmission end-of-transmission flag (e.g. only last 1 transmission end flag is set to true), etc.

The above is the case of transmitting only one feedback information for blind retransmission, and the above transmission case can reduce the number of times of transmitting feedback information and optimize the transmission flow.

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

When sending a feedback message for each packet in the blind retransmission, the receiving end firstly sends the feedback message for the first packet, if the feedback message corresponding to the first packet is the feedback message of the successfully received target transport block, the sending end can determine that the receiving is successful, and at the moment, the sending end can send the next transport 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, 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 packet is feedback information failed to be received, the receiving end continuously transmits the feedback information corresponding to the third packet until the feedback information successful to be received is transmitted to the transmitting end.

Wherein, in case that the receiving end does not successfully receive the target transport block, the blind retransmission can be determined to be ended according to the group number included in the blind retransmission.

When the receiving end sends feedback information to any packet, the receiving end can send the feedback information of the received successful reception to the sending end after a certain transmission in any packet successfully receives the target transmission block. Or after any packet transmission is finished, the receiving end sends feedback information of the received power to the sending end according to the condition that the target transport block is successfully received by a certain transmission in the group. And after the transmission of any packet is finished, the receiving end can also send feedback information of the failure of the group of the receiving ends according to the condition that any target transport block is not successfully received.

It should be noted that, the receiving end may determine that a certain group of blind retransmission of the transmitting end is finished in the following manner, and prepare to perform feedback, for example: counting the number of times of the received transmission of the group, merging RV versions of the received data, decoding the transmission in the SCI indication about the transmission in the group, blindly retransmitting the group transmission end mark, and the like.

The above is a case of transmitting feedback information 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 performing the packet of the number of times of transmission, and the transmission flow can be optimized.

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

When a feedback message is sent for each transmission in the blind retransmission, the receiving end sequentially sends the feedback messages according to the time sequence, when a target transport block is successfully received in a certain transmission, the feedback message with successful reception can be sent, and when the target transport block is not successfully received in a certain transmission, the feedback message with failed reception can be sent.

If the receiving end does not successfully receive the target transport block for each transmission in the blind retransmission, the end of the blind retransmission of the transmitting end can be determined according to the following manner, 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 a blind retransmission end-of-transmission flag, etc.

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

The above is an implementation procedure of the information receiving method in the embodiment of the present invention, where the receiving end determines whether one of the blind retransmission and the blind retransmission is received successfully or not, determines whether the transmission of the blind retransmission or one of the blind retransmission is ended or not, determines the timing of transmitting the feedback information according to the 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 what mode to transmit according to the transmission number.

In summary, in the information receiving method of 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 by the receiving mode corresponding to the blind retransmission, and the redundant receiving is reduced by the retransmission mechanism of the HARQ feedback, so that the utilization rate of the frequency spectrum and the reliability of the receiving can be improved.

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

In an embodiment of the present invention, the transmitting apparatus 1400 further includes: a computer program stored on the memory 1403 and executable on the processor 1401. The transceiver 1402 is configured to:

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

The processor 1401 is responsible for managing the 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 also configured to: and when the resource sending time corresponding to the time sequence arrives, the target transmission block is transmitted through the corresponding first sending resource.

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

And 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 unsuccessful reception of the feedback information of the target transport block transmitted through the first transmission resource.

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

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

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

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

the transceiver 1402 is also configured to: and when the resource sending time corresponding to the time sequence arrives, transmitting the target transmission block through the second sending resource based on an HARQ feedback mechanism.

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

The sending device can implement all the implementation manners in the above information sending method embodiment, and in order to avoid repetition, the description is omitted here.

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

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

Optionally, the feedback information includes feedback information of successful reception corresponding to successful reception of the target transport block by blind retransmission, and feedback information of unsuccessful reception corresponding to unsuccessful reception of the target transport block by blind retransmission; in transmitting feedback information characterizing the reception status of the target transport block to the transmitting device, the transceiver 1502 is further configured to:

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

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

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

The receiving device can implement all the implementation manners in the above information receiving method embodiment, and in order to avoid repetition, the description is omitted here.

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

a first transmission module 1601, configured to blindly retransmit the target TB transport block by using 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, if the feedback information indicates that the target transport block fails to receive, transmit the target transport block according to a second transmission resource and a HARQ feedback result;

Optionally, the first transmission module includes:

A first determining submodule, configured to determine a first transmission resource in 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 transmission resource in a resource selection window according to the configuration information;

And the first transmission sub-module is used for transmitting the target transmission block through the corresponding first transmission resource when the resource transmission time corresponding to the time sequence arrives.

Optionally, the acquiring module includes:

A receiving sub-module, configured to receive the feedback information sent by the receiving device and successfully received or unsuccessfully received by the blind retransmission;

A termination sub-module, configured to terminate subsequent transmission of the target transport block according to the feedback information of the target transport block that is successfully received;

And the execution sub-module is used for executing the 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 unsuccessful reception of the feedback information of the target transport block transmitted through the first transmission resource.

Optionally, the receiving submodule includes:

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

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

And the third receiving unit is used for receiving the feedback information which is sequentially sent by the receiving equipment for each transmission in the blind retransmission.

Optionally, the first receiving unit is further configured to:

Optionally, the second receiving unit is further configured to:

Optionally, the third receiving unit is further configured to:

Optionally, the second transmission module includes:

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

And the second transmission sub-module is used for transmitting the target transmission block through the second transmission resource based on the HARQ feedback mechanism when the resource transmission time corresponding to the time sequence arrives.

Optionally, the second transmission sub-module is further configured to:

The transmitting device in the embodiment of the present invention can implement all the implementation manners in the embodiment of the information transmitting method, and in order to avoid repetition, the description is omitted here.

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

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

a sending module 1702 configured to send feedback information characterizing a 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 fails to receive, the target transport block that is transmitted by the transmitting device according to a second transmission resource and a HARQ feedback result;

Optionally, the feedback information includes feedback information of successful reception corresponding to successful reception of the target transport block by blind retransmission, and feedback information of unsuccessful reception corresponding to unsuccessful reception of the target transport block by blind retransmission; the transmission module includes:

a first sending sub-module, configured to send one piece of feedback information for blind retransmission to the sending device; or alternatively

The second sending submodule is used for sending the feedback information to the sending equipment aiming at each packet corresponding to the blind retransmission, wherein the transmission times included in the blind retransmission correspond to at least two packets, and the packets are arranged according to time sequence; or alternatively

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

Optionally, the first sending sub-module is further configured to:

Optionally, the second transmitting sub-module is further configured to:

Optionally, the third transmitting sub-module is further configured to:

The receiving device in the embodiment of the present invention can implement all the implementation manners in the embodiment of the information receiving method, and in order to avoid repetition, the description is omitted here.

Wherein, the sending end in the embodiment of the invention is equivalent to the sending equipment, and the receiving end is equivalent to the receiving equipment.

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 solution. 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 will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown 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 may be selected according to actual needs to achieve the purpose of the embodiment of the present invention.

In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in 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 this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a base station, etc.) to perform all or part of the steps of the method of the various embodiments of the present invention. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk, etc.

While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and changes can be made without departing from the principles of the present invention, and such modifications and changes are intended to be within the scope of the present invention.

Claims

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

acquiring feedback information representing the receiving state of the target TB transmission block sent by a receiving end;

and transmitting the target TB transmission 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 TB transmission block fails to be received, wherein the method comprises the following steps:

transmitting the target TB transmission block through the second transmission resource based on an HARQ feedback mechanism when the resource transmission time corresponding to the time sequence arrives;

2. The method of claim 1, wherein blindly retransmitting the target TB transport block over the first transmission resource comprises:

And when the resource sending time corresponding to the time sequence arrives, the target TB transmission block is transmitted through the corresponding first sending resource.

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

Receiving the feedback information which is sent by the receiving end and is successfully received or not successfully received by the target TB transmission block through blind retransmission;

terminating the subsequent transmission of the target TB transport block according to the feedback information of the target TB transport block which is successfully received;

and according to the unsuccessful receiving of the feedback information of the target TB transmission block sent by the first sending resource, executing the step of transmitting the target TB transmission block according to a second sending resource and a HARQ feedback result.

4. The method of claim 3 wherein receiving feedback information sent by the receiving end that the target TB transport block was successfully received or was not successfully received by blind retransmission comprises:

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

Receiving feedback information of successful receiving sent by the receiving end after successful receiving the target TB transmission block in a certain transmission in blind retransmission; or alternatively

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

And receiving feedback information of failure in receiving, which is sent by the receiving end after the blind retransmission is finished and when any one of the target TB transport blocks is not successfully received.

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

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

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

When the receiving end successfully receives the target TB transmission block according to a certain transmission in the blind retransmission, the sending end receives feedback information of successful reception sent by the receiving end, and when the receiving end does not successfully receive the target TB transmission block according to a certain transmission in the blind retransmission, the sending end receives feedback information of unsuccessful reception sent by the receiving end;

8. The method of claim 1, wherein transmitting the target TB transport block over the second transmission resource based on a HARQ feedback mechanism comprises:

After the target TB transmission block is transmitted through one second transmission resource, receiving an HARQ feedback result transmitted by the receiving end;

and under the condition that the HARQ feedback result is that the target TB transport block is not successfully received, the target TB transport block is sent through the next second sending resource until the target TB transport block is successfully transmitted or the second sending resource is used.

9. An information receiving method applied to a receiving end, comprising the following steps:

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

Receiving the target TB transport 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 TB transport block fails to be received;

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

The receiving, by the transmitting end, according to the second transmission resource and the target TB transport block transmitted by the HARQ feedback result, includes:

And when the resource sending time corresponding to the time sequence arrives, transmitting the target TB transport block through the second sending resource based on an HARQ feedback mechanism.

10. The method of claim 9, wherein the feedback information comprises feedback information corresponding to successful reception when the target TB transport block is successfully received by blind retransmission and feedback information corresponding to unsuccessful reception when the target TB transport block is not successfully received by blind retransmission;

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

For each transmission in the blind retransmission, the feedback information is sequentially sent to the sending end, including:

When the receiving end successfully receives the target TB transmission block according to a certain transmission in the blind retransmission, the receiving end sends feedback information of successful reception, and when the receiving end does not successfully receive the target TB transmission block according to a certain transmission in the blind retransmission, the receiving end sends feedback information of failed reception;

And under the condition that the target TB transmission block is not successfully received for each transmission in the blind retransmission, the receiving end determines that the blind retransmission is ended according to at least one of the counted received transmission 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 a blind retransmission transmission ending mark.

11. The method of claim 10, wherein transmitting one of the feedback information for blind retransmission to the transmitting end comprises:

after the target TB transmission block is successfully received through a certain transmission in the blind retransmission, sending feedback information of successful reception to the sending terminal; or alternatively

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

When the blind retransmission is determined to be finished, according to the condition that any one of the target TB transport blocks is not successfully received, sending feedback information of failure in reception to the sending terminal;

12. The method of claim 10, wherein for each packet corresponding to a blind retransmission, sending the feedback information to the sender comprises:

For each packet, when a certain transmission in the packet successfully receives the target TB transmission block, sending feedback information of the received power to the sending end; or for each packet, when the blind retransmission is determined to be finished, the feedback information of the group of received successful power is sent to the sending end according to the condition that the target TB transmission block is successfully received by a certain transmission in the group; or for each packet, when the blind retransmission is determined to be finished, sending feedback information of failure in the group reception to the sending end according to the condition that any one of the target TB transport blocks is not successfully received in the group;

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

13. A transmitting apparatus comprising: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor, the transceiver being configured to:

acquiring feedback information representing the receiving state of the target TB transmission block, which is sent by receiving equipment;

Transmitting the target TB transmission 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 TB transmission block fails to be received;

When transmitting the target TB transport block according to the second transmission resource and the HARQ feedback result, the processor is further configured to:

the transceiver is also for: and when the resource sending time corresponding to the time sequence arrives, transmitting the target TB transport block through the second sending resource based on an HARQ feedback mechanism.

14. The transmitting device of claim 13, wherein the processor is configured, in blind retransmission of the target TB transport block over the first transmission resource:

the transceiver is also for: and when the resource sending time corresponding to the time sequence arrives, the target TB transmission block is transmitted through the corresponding first sending resource.

15. The transmitting device of claim 13, wherein when obtaining feedback information transmitted by a receiving device that characterizes the reception state of the target TB transport block, the transceiver is further configured to:

receiving the feedback information which is sent by the receiving equipment and is successfully received or not successfully received by the target TB transmission block through blind retransmission;

the processor is further configured to: terminating the subsequent transmission of the target TB transport block according to the feedback information of the target TB transport block which is successfully received;

And controlling the transceiver to execute the step of transmitting the target TB transport block according to a second transmission resource and a hybrid automatic repeat request (HARQ) feedback result according to the unsuccessful reception of the feedback information of the target TB transport block transmitted through the first transmission resource.

16. The transmitting device of claim 15, wherein upon receiving feedback information sent by the receiving device that was successfully received by a blind retransmission or was not successfully received by the target TB transport block, the transceiver is further configured to:

17. The transmitting device of claim 16, 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 device after successful receiving the target TB transmission block in a certain transmission in blind retransmission; or alternatively

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

And receiving feedback information of failure in receiving, which is sent by the receiving device after the blind retransmission is finished and when any one of the target TB transport blocks is not successfully received.

18. The transmitting device of claim 16, wherein upon receiving the feedback information sent by the receiving device for a packet corresponding to a blind retransmission, the transceiver is further configured to:

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

19. The transmitting device of claim 16, wherein upon receiving the feedback information that the receiving device sequentially transmits for each transmission in a blind retransmission, the transceiver is further configured to:

When the receiving device successfully receives the target TB 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 does not successfully receive the target TB transmission block according to a certain transmission in the blind retransmission, the sending device receives feedback information of unsuccessful reception sent by the receiving device;

20. The transmitting device of claim 13, wherein the transceiver is further configured to, based on a HARQ feedback mechanism, when transmitting the target TB transport block over the second transmission resource:

After the target TB transmission block is transmitted through one second transmission resource, receiving an HARQ feedback result transmitted by the receiving device;

21. A receiving apparatus comprising: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor, the transceiver being configured to:

Transmitting feedback information representing the receiving state of the target TB transmission block to the transmitting equipment;

receiving the target TB transport block transmitted by the transmitting equipment 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 TB transport block fails to be received;

The receiving, by the sending device, according to a second sending resource and the target TB transport block transmitted by the HARQ feedback result, includes:

22. The reception apparatus of claim 21, wherein the feedback information comprises feedback information corresponding to successful reception when the target TB transport block is successfully received by blind retransmission, and feedback information corresponding to unsuccessful reception when the target TB transport block is not successfully received by blind retransmission;

When transmitting feedback information characterizing the reception state of the target TB transport block to the transmitting device, the transceiver is further configured to:

23. The receiving device of claim 22, wherein when transmitting one of the feedback information for blind retransmission to the transmitting device, the transceiver is further configured to:

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

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

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

24. The receiving device of claim 22, wherein for each packet corresponding to a blind retransmission, when sending the feedback information to the sending device, the transceiver is further configured to:

For each packet, when a certain transmission in the packet successfully receives the target TB transmission block, sending feedback information of the receiving success to the sending equipment; or for each packet, when the blind retransmission is determined to be finished, sending feedback information of the group of received successful power to the sending equipment according to the condition that a certain transmission in the group successfully receives the target TB transmission block; or for each packet, when the blind retransmission is determined to be finished, according to the condition that any one of the target TB transport blocks is not successfully received in the group, sending feedback information of failure in the group reception to the sending equipment;

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

25. The receiving device of claim 22, wherein for each transmission in a blind retransmission, when sequentially transmitting the feedback information to the transmitting device, the transceiver is further configured to:

when the receiving equipment successfully receives the target TB transmission block according to a certain transmission in the blind retransmission, the receiving equipment sends feedback information of successful reception, and when the receiving equipment does not successfully receive the target TB transmission block according to a certain transmission in the blind retransmission, the receiving equipment sends feedback information of failed reception;

and under the condition that the target TB transmission block is not successfully received for each transmission in the blind retransmission, the receiving device determines that the blind retransmission is ended according to at least one of the counted received transmission 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 a blind retransmission transmission ending mark.

26. A transmitting apparatus, characterized by comprising:

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

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

The second transmission module includes:

and the second transmission sub-module is used for transmitting the target TB transmission block through the second transmission resource based on the HARQ feedback mechanism when the resource transmission time corresponding to the time sequence arrives.

27. A receiving apparatus, comprising:

a transmitting module, configured to transmit feedback information characterizing a receiving state of the target TB transport block to the transmitting device;

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

28. The receiving device of claim 27, wherein the transmitting module comprises: the system comprises a first transmission sub-module, a second transmission sub-module and a third transmission sub-module;

the second transmitting sub-module is further configured to:

29. A computer-readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, realizes the steps in the information transmission method according to any one of claims 1 to 8 or the steps in the information reception method according to any one of claims 9 to 12.