WO2020088135A1

WO2020088135A1 - Information processing method and terminal

Info

Publication number: WO2020088135A1
Application number: PCT/CN2019/106430
Authority: WO
Inventors: 郑石磊; 郑方政; 冯媛; 赵锐; 马腾
Original assignee: 电信科学技术研究院有限公司
Priority date: 2018-10-31
Filing date: 2019-09-18
Publication date: 2020-05-07
Also published as: CN111132086A

Abstract

The present invention provides an information processing method and a terminal. The information processing method of the present invention comprises: sending data to a target terminal, the data comprising resource position information of a feedback channel so that the target terminal sends a feedback signal according to the resource position information of the feedback channel; detecting, according to the resource position information of the feedback channel, whether the feedback signal is received; and determining whether to perform retransmission according to the detection result, wherein in a unicast transmission mode, the feedback signal is sent when the target terminal successfully decodes the data, and in a multicast transmission mode, the feedback signal is sent when the target terminal fails to decode the data.

Description

Information processing method and terminal

Cross-reference of related applications

This application claims the priority of Chinese Patent Application No. 201811287248.5 filed in China on October 31, 2018, the entire contents of which are hereby incorporated by reference.

Technical field

The present disclosure relates to the field of communication technology, and in particular, to an information processing method and terminal.

Background technique

NR (New Radio, New Air Port) V2X (Vehicle totoX) introduced unicast and multicast transmission methods on the basis of broadcast transmission. However, there is no retransmission feedback scheme for unicast and multicast transmissions in the related art.

Summary of the invention

In view of this, the present disclosure provides an information processing method and terminal to improve the utilization rate of communication resources.

To solve the above technical problems, in a first aspect, the present disclosure provides an information processing method, which is applied to a source terminal, and includes:

Sending data to the target terminal, including the resource location information of the feedback channel in the data, so that the target terminal sends a feedback signal according to the resource location information of the feedback channel;

Detecting whether the feedback signal is received according to the resource location information of the feedback channel;

Determine whether to retransmit according to the test results;

In the unicast transmission mode, the feedback signal is sent when the target terminal successfully decodes the data; in the multicast transmission mode, the feedback signal is sent when the target terminal fails to decode the data of.

Wherein, the determining whether to perform retransmission according to the detection result includes:

In unicast transmission mode: if the feedback signal is not detected, retransmission is performed; if the feedback signal is detected, retransmission is not performed;

In the multicast transmission mode: if the feedback signal is detected, retransmission is performed; if the feedback signal is not detected, retransmission is not performed.

Wherein, the method further includes:

The resource position of the feedback channel is selected from the resource pool of the feedback channel, wherein the resource pool is configured by high-layer signaling or the resource pool is a pre-configured resource pool.

Wherein, SCI (Sidelink Control Information) is used to indicate the resource location information of the feedback channel.

Wherein, in the unicast mode, the detecting whether the feedback signal is received according to the resource location information of the feedback channel includes:

A first sequence is generated using first information selected from the following information: the identification of the source terminal, the identification of the source terminal and the identification of the target terminal, the source terminal and the target terminal The logo of the unicast group to which it belongs;

Performing correlation peak detection on the first sequence and the signal received at the resource position of the feedback channel at the resource position of the feedback channel according to the resource position information of the feedback channel;

If a peak value is detected, it is determined that the feedback signal is received, otherwise it is determined that the feedback signal is not received.

Wherein, in the multicast mode, the detecting whether the feedback signal is received according to the resource location information of the feedback channel includes:

Generate a second sequence using second information, the second information is selected from the following information: the identifier of the source terminal and the identifier of the target terminal, the identifier of the multicast group to which the source terminal and the target terminal belong;

Performing correlation peak detection on the second sequence and the signal received at the resource position of the feedback channel at the resource position of the feedback channel according to the resource position information of the feedback channel;

In a second aspect, the present disclosure provides an information processing method applied to a target terminal, including:

Receiving data sent by the source terminal, including the resource location information of the feedback channel in the data;

Decode the data;

Send a feedback signal to the source terminal according to the resource location information of the feedback channel;

Wherein, in the unicast mode, the sending a feedback signal to the source terminal according to the resource location information of the feedback channel includes:

If the decoding is successful, the third information is used to generate a sequence with correlation, the third information is selected from the following information: the identifier of the source terminal, the identifier of the source terminal and the identifier of the target terminal The identifier of the terminal and the unicast group to which the target terminal belongs;

Use the sequence as a feedback signal, and send the feedback signal to the source terminal according to the resource location information of the feedback channel.

Wherein, in the multicast mode, the sending a feedback signal to the source terminal according to the resource location information of the feedback channel includes:

If decoding fails, the fourth information is used to generate a sequence with correlation, the fourth information is selected from the following information: the identifier of the source terminal and the identifier of the target terminal, the source terminal and the target terminal belong to The identity of the multicast group;

Wherein, if data of more than two source terminals are received, before the sending a feedback signal to the source terminal according to the resource location information of the feedback channel, the method further includes:

Acquiring priority information of each source terminal among the two or more source terminals;

The sending a feedback signal to the source terminal according to the resource location information of the feedback channel includes:

According to the priority information, the feedback signal is preferentially sent to the source terminal whose priority meets a predetermined requirement.

Wherein, the resource location information of the feedback channel is indicated by SCI.

Wherein, the related sequence is selected from the following sequences: m sequence, CG sequence, ZC sequence, PN sequence.

In a third aspect, the present disclosure provides a terminal, including:

A sending module, configured to send data to a target terminal, including the resource location information of the feedback channel in the data, so that the target terminal sends a feedback signal according to the resource location information of the feedback channel;

A detection module, configured to detect whether the feedback signal is received according to the resource location information of the feedback channel;

The retransmission module is used to determine whether to retransmit according to the detection result;

Among them, the retransmission module is specifically used for:

According to a fourth aspect, the present disclosure provides a terminal, including:

A receiving module, configured to receive data sent by a source terminal, and the data includes resource location information of a feedback channel;

A decoding module for decoding the data;

A processing module, configured to send a feedback signal to the source terminal according to the resource location information of the feedback channel;

Wherein, in the unicast transmission mode, the feedback signal is sent when the terminal successfully decodes the data; in the multicast transmission mode, the feedback signal is sent when the terminal fails to decode the data.

Wherein, the processing module includes:

The first generating submodule is used to generate a sequence with correlation using the seventh information if the decoding is successful, the seventh information is selected from the following information: the identifier of the source terminal, the identifier of the source terminal, and the The identification of the terminal, the identification of the source terminal and the unicast group to which the terminal belongs;

The first sending submodule is configured to use the sequence as a feedback signal and send a feedback signal to the source terminal according to the resource location information of the feedback channel.

Wherein, the processing module includes:

The second generation submodule is used to generate a sequence with correlation using the eighth information if the decoding fails, the eighth information is selected from the following information: the identifier of the source terminal and the identifier of the terminal, the source The identification of the terminal and the multicast group to which the terminal belongs;

The second sending submodule is configured to use the sequence as a feedback signal and send a feedback signal to the source terminal according to the resource location information of the feedback channel.

According to a fifth aspect, the present disclosure provides a terminal, including: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor;

The transceiver is used to send data to a target terminal, and the data includes resource location information of a feedback channel, so that the target terminal sends a feedback signal according to the resource location information of the feedback channel;

The processor is used to read the program in the memory and perform the following process: detect whether the feedback signal is received according to the resource location information of the feedback channel; determine whether to retransmit according to the detection result;

Among them, the processor is also used to read the program in the memory and perform the following process:

SCI is used to indicate the resource location information of the feedback channel.

A ninth information is used to generate a first sequence, the ninth information is selected from the following information: the identification of the terminal, the identification of the terminal and the identification of the target terminal, the unicast to which the terminal and the target terminal belong Group logo;

Generating a second sequence using tenth information, the tenth information is selected from the following information: the identification of the terminal and the identification of the target terminal, the identification of the terminal and the multicast group to which the target terminal belongs;

In a sixth aspect, the present disclosure provides a terminal, including: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor;

The transceiver is configured to receive data sent by the source terminal, and the data includes information about the resource location of the feedback channel;

The processor is used to read the program in the memory and perform the following process: decode the data;

The transceiver is further configured to send a feedback signal to the source terminal according to the resource location information of the feedback channel;

If the decoding is successful, the eleventh information is used to generate a sequence with correlation. The eleventh information is selected from the following information: the identity of the source terminal, the identity of the source terminal and the identity of the terminal, the The identification of the source terminal and the unicast group to which the terminal belongs;

If the decoding fails, the twelfth information is used to generate a sequence with correlation. The twelfth information is selected from the following information: the identification of the source terminal and the identification of the terminal, the source terminal and the terminal belong to The identity of the multicast group;

Obtain priority information of each source terminal among more than two source terminals;

In a seventh aspect, the present disclosure provides a computer-readable storage medium for storing a computer program that, when executed by a processor, implements the steps in the method according to the first aspect; or, the computer program is When executed by the processor, the steps in the method described in the second aspect are implemented.

The beneficial effects of the above technical solutions of the present disclosure are as follows:

In the present disclosure, a feedback mechanism is provided in unicast or multicast mode to control the number of retransmissions of the target terminal, thereby improving the utilization rate of communication resources.

BRIEF DESCRIPTION

1 is a flowchart of information processing of some embodiments of the present disclosure;

2 is a flowchart of information processing according to some embodiments of the present disclosure;

Figure 3 is a schematic diagram of a unicast scenario;

Figure 4 is the second schematic diagram of the unicast scenario;

Figure 5 is the third schematic diagram of the unicast scenario;

Fig. 6 is a schematic diagram of a multicast scenario;

7 is a second schematic diagram of a multicast scenario;

Figure 8 is the third schematic diagram of the multicast scenario;

9 is one of the schematic diagrams of the terminal according to some embodiments of the present disclosure;

10 is a second schematic diagram of a terminal according to some embodiments of the present disclosure;

11 is a third schematic diagram of a terminal according to some embodiments of the present disclosure;

12 is a fourth schematic diagram of a terminal according to some embodiments of the present disclosure;

13 is a fifth schematic diagram of a terminal according to some embodiments of the present disclosure;

14 is a sixth schematic diagram of a terminal according to some embodiments of the present disclosure.

detailed description

The specific implementation of the present disclosure will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present disclosure, but not to limit the scope of the present disclosure.

As shown in FIG. 1, the information processing methods of some embodiments of the present disclosure, applied to the source terminal, include:

Step 101: Send data to the target terminal, including the resource location information of the feedback channel in the data, so that the target terminal sends a feedback signal according to the resource location information of the feedback channel.

In some embodiments of the present disclosure, the source terminal refers to a communication initiation terminal, and the target terminal refers to a terminal that receives communication from the source terminal.

The source terminal uses SCI to indicate the resource location information of the feedback channel. The resource location information is randomly selected by the source terminal.

In practical applications, a feedback channel can be introduced. The feedback channel has an independent resource pool, which can be configured through high-level signaling RRC (Radio Resource Control) or pre-configured (pre-configured). When communicating, Source UE (User Equipment) selects the resource location of the feedback channel from the resource pool of the feedback channel, and indicates the Destination UE (target UE) through the SCI.

Step 102: Detect whether the feedback signal is received according to the resource location information of the feedback channel.

Specifically, in the unicast mode, the source terminal uses the first information to generate the first sequence, the first information is selected from the following information: the identity of the source terminal (such as ID (Identification, identity)), the The identifier of the source terminal and the identifier (such as ID) of the target terminal, and the identifier (Group ID) of the unicast group to which the source terminal and the target terminal belong. Then, the source terminal performs correlation peak detection on the first sequence and the signal received at the resource position of the feedback channel at the resource position of the feedback channel according to the resource position information of the feedback channel. If a peak value is detected, it is determined that the feedback signal is received, otherwise it is determined that the feedback signal is not received.

In the multicast mode, the source terminal uses the second information to generate a second sequence, the second information is selected from the following information: the identity (eg, ID) of the source terminal and the identity of the target terminal (Such as ID), the identification of the multicast group to which the source terminal and the target terminal belong (Group ID). Then, the source terminal performs correlation peak detection on the second sequence and the signal received at the resource position of the feedback channel at the resource position of the feedback channel according to the resource position information of the feedback channel. If a peak value is detected, it is determined that the feedback signal is received, otherwise it is determined that the feedback signal is not received.

In some embodiments of the present disclosure, the source terminal uses this correlation detection, which can make the anti-interference ability better and the detection accuracy higher.

Step 103: Determine whether to perform retransmission according to the detection result.

Specifically, in the unicast transmission mode: if the feedback signal is not detected, retransmission is performed; if the feedback signal is detected, retransmission is not performed. In the multicast transmission mode: if the feedback signal is detected, retransmission is performed; if the feedback signal is not detected, retransmission is not performed.

It can be seen from this that in some embodiments of the present disclosure, whether in unicast mode or multicast mode, the target terminal only needs to feed back one state after decoding, thereby further saving resources.

In some embodiments of the present disclosure, a feedback mechanism is provided in unicast or multicast mode to control the number of retransmissions of the target terminal, thereby improving the utilization rate of communication resources.

As shown in FIG. 2, the information processing method of some embodiments of the present disclosure, applied to a target terminal, includes:

Step 201: Receive data sent by a source terminal, where the data includes resource location information of a feedback channel.

Wherein, the resource location information is indicated by the source terminal through its SCI, and the resource location is randomly selected by the source terminal.

Step 202: Decode the data.

Step 203: Send a feedback signal to the source terminal according to the resource location information of the feedback channel. In the unicast transmission mode, the feedback signal is sent when the target terminal successfully decodes the data; in the multicast transmission mode, the feedback signal is sent when the target terminal fails to decode the data of.

In this step, in the unicast mode, if the decoding is successful, the target terminal uses the third information to generate a related sequence, the third information is selected from the following information: the identity of the source terminal, the source terminal And the identification of the target terminal, the identification of the unicast group to which the source terminal and the target terminal belong. Then use the sequence as a feedback signal and send a feedback signal to the source terminal according to the resource location information of the feedback channel. In the multicast mode, if the decoding fails, the target terminal uses the fourth information to generate a related sequence, the fourth information is selected from the following information: the identification of the source terminal and the identification of the target terminal, the The identification of the multicast group to which the source terminal and the target terminal belong. Then, the sequence is used as a feedback signal, and a feedback signal is sent to the source terminal according to the resource location information of the feedback channel.

Whether in unicast mode or multicast mode, the related sequences include but are not limited to the following sequences: m sequence, CG sequence, ZC sequence, PN sequence, etc.

In the above embodiment, if the target terminal receives data from more than two source terminals, then the target terminal may obtain priority information of each of the two or more source terminals, and then, according to the priority Level information, preferentially sending the feedback signal to a source terminal whose priority level meets a predetermined requirement. The priority information of each source terminal may also be indicated to the target terminal through SCI, for example.

The terminal whose priority meets the predetermined requirements may be, for example, sorted according to the order of priority from high to low, and the terminal with the highest priority is sorted, for example, the terminal with the highest priority.

For example, in unicast communication, the target terminal receives the data of the source terminal 1 and the source terminal 2 at the same time, and the priority of the source terminal 1 is higher than that of the source terminal 2. Then, when the target terminal successfully decodes the data of both source terminals, it may preferentially send a feedback signal to the source terminal 1.

In the related art, LTE (Long Term Evolution, Long Term Evolution) -V2X adopts the mechanism of broadcast communication and does not introduce a corresponding feedback channel. At this stage, NR V2X introduces unicast and multicast mechanisms on the basis of broadcasting. If the same processing method as the original LTE V2X is adopted, then when retransmitting, if appropriate feedback is not used for control, it will Sending unlimited, resulting in a lot of waste of resources.

When performing unicast or multicast communication, the feedback of HARQ (Hybrid Automatic Repeat request) is divided into two types of messages: ACK (acknowledgement response) / NACK (negative response). To ensure reliability, multiple retransmissions are required, but in order to maximize the utilization of resources, it is necessary to stop the retransmission operation in a timely manner.

Based on the above ideas, when performing unicast communication, Destination UE successfully decodes the signal sent by Source UE and only needs to feed back an ACK signal to notify Source UE to stop retransmission. If the Destination UE decoding fails, no feedback is required. At this time, the Source UE continues to maintain the retransmission state because it has not received any feedback information.

For multicast communication, one Source UE sends data to multiple Destination UEs at the same time. For those Destination UEs that have not successfully decoded, the NACK signal needs to be fed back to the Source UE, and no feedback is needed for the remaining Destination UEs. After the Source UE detects the NACK signal, it can provide corresponding feedback to the Destination UE that sent the signal when the source of the feedback information is distinguished. Or, the Source UE detects the NACK signal and directly retransmits all Destination UEs in the group.

For this reason, in practical applications, a feedback channel needs to be introduced. The feedback channel has an independent resource pool, which is configured by high-level RRC (Radio Resource Control) or pre-configured (pre-configured). When communicating, the SCI of the Source UE instructs the Destination to dynamically schedule the resources in the feedback resource pool.

For unicast, this dynamic scheduling process is based on a certain selection principle, which does not belong to the scope of protection of this patent. For multicast, Source UE can adjust the members of the group without conflicting with each other. However, the selection of resources between groups is also based on a certain selection principle, which does not belong to the scope of this patent protection.

In order to simplify the state of the feedback signal, and the UE can distinguish whether it is in unicast or multicast state, that is to say, a specific communication only requires a specific feedback state: unicast feedback ACK, multicast feedback NACK. In some embodiments of the present disclosure, a sequence with a certain correlation is used to represent ACK or NACK, where the sequence includes, but is not limited to, m sequence, CG sequence, ZC sequence, PN sequence, etc., such as synchronization signals in NR DMRS (Demodulation Reference Signal, demodulation reference signal).

For unicast communication, if the decoding is successful, the Destination UE uses the Source ID of the UE (Source ID), or the Source ID of the UE and the ID of the Destination UE (Destination ID) to generate a related sequence, which serves as a feedback signal. Destination UE sends a feedback signal according to the resource location of the feedback channel indicated by Source UE. Source UE uses the sequence correlation to slide in the resource position of the feedback channel to detect the peak value. If the feedback signal is detected, the Source UE knows that the feedback signal is an ACK signal, indicating that the Destination UE successfully received and decoded it, and immediately stops retransmission. If no feedback information is received, Source UE continues to retransmit.

For multicast communication, if the decoding fails, the Destination UE uses the ID of the Source UE and the ID of the Destination UE to generate a related sequence and use it as a feedback signal. Destination UE sends a feedback signal according to the resource location of the feedback channel indicated by Source UE. Source UE uses the sequence correlation to slide in the resource position of the feedback channel to detect the peak value. If the Source UE detects the feedback signal, the Source UE knows that the feedback signal is a NACK signal, and can use the Destination ID to identify which Destination UE failed to decode, and then send a retransmission signal to it. In addition, the Source UE can also directly retransmit all members of the group without distinguishing which Destination UE the feedback signal comes from. If no feedback information is received, Source UE does not need to retransmit.

The following specifically describes how to deal with unicast and multicast in combination with different embodiments.

As shown in Figure 3, it is one of the schematic diagrams of unicast scenarios. Source UE sends DATA to Destination UE and uses SCI to indicate the resource location of the feedback channel. If Destination UE successfully decodes DATA, it can use the ID of Source UE to generate m-sequence and use it as a feedback signal. Then, the signal is fed back according to the resource position of the feedback channel indicated in the SCI of the Source UE, and the feedback signal indicates ACK. Then, the Source UE detects the feedback signal at the corresponding resource location. If the feedback signal is successfully received, the retransmission is stopped, otherwise the retransmission signal continues to be sent.

As shown in Fig. 4, it is one of the schematic diagrams of unicast scenarios. As shown in FIG. 4, when there are two unicasts for the same Destination UE in the system, Source UE1 and UE2 both randomly select feedback resources from the same feedback resource pool. If the feedback resources selected by the two Sources UE1 and UE2 do not conflict, the Destination UE can perform feedback according to the feedback mode in the scenario shown in FIG. 3. If the feedback resources selected by the two Destination UEs conflict, the Destination UE can sort the feedback according to the priority of Source UE1 and UE2 when making feedback, and give priority to the Source UE with higher priority.

For Source UE1 and UE2, taking Source UE1 as an example, the feedback signal can be detected at the resource location indicated to Destination UE. If the feedback signal indicating ACK is successfully received, stop the retransmission, otherwise continue to send the retransmission signal.

As shown in Figure 5, it is one of the schematic diagrams of unicast scenarios. As shown in Figure 5, when there are two or more unicast pairs in the system, since all Source UEs select the feedback resources in the same feedback resource pool and indicate them to Destination UE through SCI, Therefore, there may be conflicts between the feedback resources used by different unicast pairs. If the feedback resources between the unicast pairs conflict, the Destination and UE cannot perceive this situation. If the decoding is successful, they will continue to generate relevant sequences according to the IDs of their Source and UE and feed back as feedback signals. , The feedback signal indicates ACK. Source UE1 and UE2 will perform feedback detection at the resource position of the same feedback channel. At this time, since the two feedback signals are generated by different Source IDs, there is no correlation, and Source 1 UE1 and UE2 will not affect each other's feedback detection. Therefore, both Source UEs can perform normal correlation. Detection, and then decide whether to retransmit according to the detection result. If there is no conflict in the feedback resources selected between Source and UE, the feedback can be performed according to the feedback mode in the scenario shown in FIG. 3.

As shown in Fig. 6, it is one of the schematic diagrams of the multicast scenario. As shown in Figure 6, when there is a group of multicast UEs in the system, each Destination UE may need feedback. At this time, the Source UE should be able to use the SCI in the feedback resource pool to allocate different feedback resources for different Destination UEs. , So that the feedback information of Destination UEs in the same group does not collide. In this case, if the Destination UE fails to decode, it uses the Source ID and Destination ID to generate a sequence as a feedback signal, which indicates NACK. Then, the Source UE detects the resource location allocated for different Destination UEs. If a feedback signal indicating NACK is detected and received at a certain location, the Source UE retransmits the corresponding Destination UE and does not retransmit the Destination without feedback.

As shown in Fig. 7, it is one of the schematic diagrams of the multicast scenario. As shown in Figure 7, there are both multicast and unicast, or two groups of multicast in the system. Therefore, it may happen that Destination UE3 needs to feed back two or more Source UEs (Destination UE3 needs feedback to Source UE1 and UE2 in this example), and the randomness of the source selection of Source UE1 and UE2 may be simultaneous Destination UE3 is required to provide feedback at the same feedback resource location. At this time, if the decoding of Destination UE3 fails, then Destination UE3 needs to distinguish the priority of Source UE1 and UE2. The priority is the feedback of high priority UE, and wait for the lower priority UE.

As shown in FIG. 8, it is one of the schematic diagrams of the multicast scenario. As shown in FIG. 8, there are two groups of multicast or more than two groups of multicast communication in the system at the same time. For all Source UEs, the feedback resources are selected in the same feedback resource pool, and the SCI is used for instructions. Therefore, there may be conflicts in the feedback resources used by different Destination UEs, and between Destination UEs. Unable to perceive this situation, they will continue to generate related sequences according to their respective Destination ID and Source ID when decoding fails, and feed back as a feedback signal, which indicates NACK. Source UE1 and UE2 will perform feedback detection in the same feedback channel resource position. At this time, since the two NACK signals are generated by different Destination ID and Source ID, they are not related, and they will not affect each other's feedback. For detection, both Source UEs can normally perform correlation detection, and then decide whether to retransmit based on the detection result. If there is no conflict in the feedback resources selected between the Source and UE, the feedback can be performed according to the feedback mode in the scenario shown in 6.

As shown in FIG. 9, the terminal of some embodiments of the present disclosure includes:

The sending module 901 is configured to send data to the target terminal, where the data includes resource location information of the feedback channel, so that the target terminal sends a feedback signal according to the resource location information of the feedback channel;

The detection module 902 is configured to detect whether the feedback signal is received according to the resource location information of the feedback channel;

A retransmission module 903, configured to determine whether to retransmit according to the detection result;

Wherein, the retransmission module 903 is specifically used for:

In unicast transmission mode: if the feedback signal is not detected, retransmission is performed; if the feedback signal is detected, then retransmission is not performed; in multicast transmission mode: if the feedback signal is detected, Then, retransmission is performed; if the feedback signal is not detected, retransmission is not performed.

Wherein, as shown in FIG. 10, the terminal may further include:

The selection module 904 is configured to select the resource position of the feedback channel from the resource pool of the feedback channel, wherein the resource pool is configured by high-level signaling or the resource pool is a pre-configured resource pool.

Wherein, SCI is used to indicate the resource location information of the feedback channel.

Wherein, the detection module 902 may include:

A first generating submodule, configured to generate a first sequence using fifth information, the fifth information is selected from the following information: the terminal identifier, the terminal identifier and the target terminal identifier, the terminal And the identifier of the unicast group to which the target terminal belongs; a first detection sub-module, used for the first sequence and the feedback at the resource position of the feedback channel according to the resource position information of the feedback channel Correlation peak detection is performed on the received signal at the resource location of the channel; the first determining submodule is configured to determine that the feedback signal is received if a peak is detected, otherwise determine that the feedback signal is not received.

Wherein, the detection module 902 may include:

A second generation sub-module for generating a second sequence using sixth information, the sixth information is selected from the following information: the identifier of the terminal and the identifier of the target terminal, the terminal and the target terminal belong to The identification of the multicast group; a second detection sub-module for receiving the second sequence and the resource position of the feedback channel at the resource position of the feedback channel according to the resource position information of the feedback channel The peak of the correlation signal is detected; a second determination submodule is used to determine that the feedback signal is received if a peak is detected, otherwise it is determined that the feedback signal is not received.

The working principle of the device of the present disclosure may refer to the description of the foregoing method embodiments.

As shown in FIG. 11, the terminal of some embodiments of the present disclosure includes:

The receiving module 1101 is configured to receive data sent by the source terminal, and the resource location information of the feedback channel is included in the data;

A decoding module 1102, configured to decode the data;

The processing module 1103 is configured to send a feedback signal to the source terminal according to the resource location information of the feedback channel;

Wherein, the processing module 1103 may include:

Wherein, if data of more than two source terminals are received, as shown in FIG. 12, the terminal may further include: an obtaining module 1104, configured to obtain the priority of each source terminal among the two or more source terminals Information; the processing module 1103 is specifically configured to, according to the priority information, preferentially send the feedback signal to a source terminal whose priority meets a predetermined requirement.

Wherein, the resource location information of the feedback channel is indicated by SCI. The related sequences are selected from the following sequences: m sequence, CG sequence, ZC sequence, PN sequence.

In some embodiments of the present disclosure, a feedback mechanism is provided in unicast or multicast mode to control the number of retransmissions of the terminal, thereby improving the utilization rate of communication resources.

As shown in FIG. 13, the terminal of some embodiments of the present disclosure includes:

The processor 1300 is used to read the program in the memory 1320 and perform the following processes:

Sending data to the target terminal through the transceiver 1310, including the resource location information of the feedback channel in the data, so that the target terminal sends a feedback signal according to the resource location information of the feedback channel; according to the resource location of the feedback channel Information, detect whether the feedback signal is received; determine whether to retransmit according to the detection result;

The transceiver 1310 is used to receive and transmit data under the control of the processor 1300.

In FIG. 13, the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 1300 and various circuits of the memory represented by the memory 1320 are linked together. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, etc., which are well known in the art, and therefore, they will not be further described in this article. The bus interface provides an interface. The transceiver 1310 may be a plurality of elements, including a transmitter and a receiver, and provides a unit for communicating with various other devices on a transmission medium. For different user devices, the user interface 1330 may also be an interface that can be externally connected to the required device. The connected devices include, but are not limited to, a keypad, a display, a speaker, a microphone, and a joystick.

The processor 1300 is responsible for managing the bus architecture and general processing, and the memory 1320 may store data used by the processor 1300 when performing operations.

The processor 1300 is also used to read the computer program and perform the following steps:

The processor 1300 is further used to read the computer program and perform the following steps: select the resource location of the feedback channel from the resource pool of the feedback channel, wherein the resource pool is configured by high-level signaling or the resource pool is Pre-configured resource pool.

The processor 1300 is further used to read the computer program and perform the following steps: use SCI to indicate the resource location information of the feedback channel.

The processor 1300 is further used to read the computer program and perform the following steps: use the first information to generate a ninth sequence, the ninth information is selected from the following information: the terminal identification, the terminal identification and all The identification of the target terminal, the identification of the terminal and the unicast group to which the target terminal belongs;

The processor 1300 is further used to read the computer program and perform the following steps: generate the tenth sequence using the second information, the tenth information is selected from the following information: the identification of the terminal and the identification of the target terminal, The identification of the multicast group to which the terminal and the target terminal belong;

As shown in FIG. 14, the terminal of some embodiments of the present disclosure includes:

The processor 1400 is used to read the program in the memory 1420 and perform the following processes:

Receive the data sent by the source terminal through the transceiver 1410, and include the resource location information of the feedback channel in the data; decode the data; send the source terminal to the source terminal according to the resource location information of the feedback channel through the transceiver 1410 Sending a feedback signal; wherein, in unicast transmission mode, the feedback signal is sent when the terminal successfully decodes the data; in multicast transmission mode, the feedback signal is that the terminal fails to decode the data Sent at the time.

The transceiver 1410 is used to receive and transmit data under the control of the processor 1400.

Wherein, in FIG. 14, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 1400 and various circuits of the memory represented by the memory 1420 are linked together. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, etc., which are well known in the art, and therefore, they will not be further described in this article. The bus interface provides an interface. The transceiver 1410 may be a plurality of elements, including a transmitter and a receiver, and provides a unit for communicating with various other devices on a transmission medium. For different user devices, the user interface 1430 may also be an interface that can be externally connected to a required device. The connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

The processor 1400 is responsible for managing the bus architecture and general processing, and the memory 1420 may store data used by the processor 1400 in performing operations.

The processor 1400 is also used to read the computer program and perform the following steps:

The processor 1400 is also used to read the computer program and perform the following steps: if decoding fails, a twelfth information is used to generate a sequence with correlation, the twelfth information is selected from the following information: the source terminal's The identification and the identification of the terminal, the identification of the source terminal and the multicast group to which the terminal belongs;

The processor 1400 is also used to read the computer program and perform the following steps: obtain priority information of each of the two or more source terminals;

In addition, the computer-readable storage medium of some embodiments of the present disclosure is used to store a computer program, which can be executed by a processor to implement the following steps:

Sending data to the terminal, including the resource location information of the feedback channel in the data, so that the terminal sends a feedback signal according to the resource location information of the feedback channel;

Determine whether to retransmit according to the test results;

Wherein, the method further includes:

Decode the data;

Using the sequence as a feedback signal, and sending a feedback signal to the source terminal according to the resource location information of the feedback channel.

In the several embodiments provided in this application, it should be understood that the disclosed method and apparatus may be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a division of logical functions. In actual implementation, there may be other divisions, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.

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

The above integrated unit implemented in the form of a software functional unit may be stored in a computer-readable storage medium. The above software functional unit is stored in a storage medium, and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device, etc.) to perform part of the steps of the transceiving methods described in the embodiments of the present disclosure. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM for short), random access memory (Random Access Memory, RAM for short), magnetic disk or optical disc, etc., which can store program codes Medium.

The above are some embodiments of the present disclosure. It should be noted that those of ordinary skill in the art can make several improvements and retouching without departing from the principles described in the present disclosure. These improvements and retouching also It should be regarded as the scope of protection of this disclosure.

Claims

An information processing method applied to the source terminal, including:

Sending data to the target terminal, including the resource location information of the feedback channel in the data, so that the target terminal sends a feedback signal according to the resource location information of the feedback channel;

Detecting whether the feedback signal is received according to the resource location information of the feedback channel;

Determine whether to retransmit according to the test results;

In the unicast transmission mode, the feedback signal is sent when the target terminal successfully decodes the data; in the multicast transmission mode, the feedback signal is sent when the target terminal fails to decode the data of.
The method according to claim 1, wherein the determining whether to perform retransmission according to the detection result comprises:

In unicast transmission mode: if the feedback signal is not detected, retransmission is performed; if the feedback signal is detected, retransmission is not performed;

In the multicast transmission mode: if the feedback signal is detected, retransmission is performed; if the feedback signal is not detected, retransmission is not performed.
The method of claim 1, further comprising:

The resource position of the feedback channel is selected from the resource pool of the feedback channel, wherein the resource pool is configured by high-layer signaling or the resource pool is a pre-configured resource pool.
The method according to claim 1, wherein the resource location information of the feedback channel is indicated using the through link control information SCI.
The method according to claim 1, wherein in unicast mode, the detecting whether the feedback signal is received according to the resource location information of the feedback channel comprises:

A first sequence is generated using first information selected from the following information: the identification of the source terminal, the identification of the source terminal and the identification of the target terminal, the source terminal and the target terminal The logo of the unicast group to which it belongs;

Performing correlation peak detection on the first sequence and the signal received at the resource position of the feedback channel at the resource position of the feedback channel according to the resource position information of the feedback channel;

If a peak value is detected, it is determined that the feedback signal is received, otherwise it is determined that the feedback signal is not received.
The method according to claim 1, wherein in the multicast mode, the detecting whether the feedback signal is received according to the resource location information of the feedback channel comprises:

Generate a second sequence using second information, the second information is selected from the following information: the identifier of the source terminal and the identifier of the target terminal, the identifier of the multicast group to which the source terminal and the target terminal belong;

Performing correlation peak detection on the second sequence and the signal received at the resource position of the feedback channel at the resource position of the feedback channel according to the resource position information of the feedback channel;

If a peak value is detected, it is determined that the feedback signal is received, otherwise it is determined that the feedback signal is not received.
An information processing method applied to a target terminal, including:

Receiving data sent by the source terminal, including the resource location information of the feedback channel in the data;

Decode the data;

Send a feedback signal to the source terminal according to the resource location information of the feedback channel;

In the unicast transmission mode, the feedback signal is sent when the target terminal successfully decodes the data; in the multicast transmission mode, the feedback signal is sent when the target terminal fails to decode the data of.
The method according to claim 7, wherein, in the unicast mode, the sending a feedback signal to the source terminal according to the resource location information of the feedback channel includes:

If the decoding is successful, the third information is used to generate a sequence with correlation, the third information is selected from the following information: the identifier of the source terminal, the identifier of the source terminal and the identifier of the target terminal The identifier of the terminal and the unicast group to which the target terminal belongs;

Use the sequence as a feedback signal, and send the feedback signal to the source terminal according to the resource location information of the feedback channel.
The method according to claim 7, wherein in the multicast mode, the sending a feedback signal to the source terminal according to the resource location information of the feedback channel comprises:

If decoding fails, the fourth information is used to generate a sequence with correlation, the fourth information is selected from the following information: the identifier of the source terminal and the identifier of the target terminal, the source terminal and the target terminal belong to The identity of the multicast group;

Use the sequence as a feedback signal, and send the feedback signal to the source terminal according to the resource location information of the feedback channel.
The method according to claim 7, wherein, if data of more than two source terminals are received, before the feedback signal is sent to the source terminal according to the resource location information of the feedback channel, the method include:

Acquiring priority information of each source terminal among the two or more source terminals;

The sending a feedback signal to the source terminal according to the resource location information of the feedback channel includes:

According to the priority information, the feedback signal is preferentially sent to the source terminal whose priority meets a predetermined requirement.
The method according to claim 7, wherein the resource location information of the feedback channel is indicated using SCI.
The method according to claim 8 or 9, wherein the related sequence is selected from the following sequence: m sequence, CG sequence, ZC sequence, PN sequence.
A terminal, including:

A sending module, configured to send data to a target terminal, including the resource location information of the feedback channel in the data, so that the target terminal sends a feedback signal according to the resource location information of the feedback channel;

A detection module, configured to detect whether the feedback signal is received according to the resource location information of the feedback channel;

The retransmission module is used to determine whether to retransmit according to the detection result;

In the unicast transmission mode, the feedback signal is sent when the target terminal successfully decodes the data; in the multicast transmission mode, the feedback signal is sent when the target terminal fails to decode the data of.
The terminal according to claim 13, wherein the retransmission module is specifically configured to:

In unicast transmission mode: if the feedback signal is not detected, retransmission is performed; if the feedback signal is detected, retransmission is not performed;

In the multicast transmission mode: if the feedback signal is detected, retransmission is performed; if the feedback signal is not detected, retransmission is not performed.
A terminal, including:

A receiving module, configured to receive data sent by a source terminal, and the data includes resource location information of a feedback channel;

A decoding module for decoding the data;

A processing module, configured to send a feedback signal to the source terminal according to the resource location information of the feedback channel;

Wherein, in the unicast transmission mode, the feedback signal is sent when the terminal successfully decodes the data; in the multicast transmission mode, the feedback signal is sent when the terminal fails to decode the data.
The terminal according to claim 15, wherein the processing module comprises:

The first generating submodule is used to generate a sequence with correlation using the seventh information if the decoding is successful, the seventh information is selected from the following information: the identifier of the source terminal, the identifier of the source terminal, and the The identification of the terminal, the identification of the source terminal and the unicast group to which the terminal belongs;

The first sending submodule is configured to use the sequence as a feedback signal and send a feedback signal to the source terminal according to the resource location information of the feedback channel.
The terminal according to claim 15, wherein the processing module comprises:

The second generation submodule is used to generate a sequence with correlation using the eighth information if the decoding fails, the eighth information is selected from the following information: the identifier of the source terminal and the identifier of the terminal, the source The identification of the terminal and the multicast group to which the terminal belongs;

The second sending submodule is configured to use the sequence as a feedback signal and send a feedback signal to the source terminal according to the resource location information of the feedback channel.
A terminal includes: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor; wherein,

The transceiver is used to send data to a target terminal, and the data includes resource location information of a feedback channel, so that the target terminal sends a feedback signal according to the resource location information of the feedback channel;

The processor is used to read the program in the memory and perform the following process: detect whether the feedback signal is received according to the resource location information of the feedback channel; determine whether to retransmit according to the detection result;

In the unicast transmission mode, the feedback signal is sent when the target terminal successfully decodes the data; in the multicast transmission mode, the feedback signal is sent when the target terminal fails to decode the data of.
The terminal according to claim 18, wherein the processor is further used to read the program in the memory and perform the following process:

In unicast transmission mode: if the feedback signal is not detected, retransmission is performed; if the feedback signal is detected, retransmission is not performed;

In the multicast transmission mode: if the feedback signal is detected, retransmission is performed; if the feedback signal is not detected, retransmission is not performed.
The terminal according to claim 18, wherein the processor is further used to read the program in the memory and perform the following process:

The resource position of the feedback channel is selected from the resource pool of the feedback channel, wherein the resource pool is configured by high-layer signaling or the resource pool is a pre-configured resource pool.
The terminal according to claim 18, wherein the processor is further used to read the program in the memory and perform the following process:

SCI is used to indicate the resource location information of the feedback channel.
The terminal according to claim 18, wherein the processor is further used to read the program in the memory and perform the following process:

A ninth information is used to generate a first sequence, the ninth information is selected from the following information: the identification of the terminal, the identification of the terminal and the identification of the target terminal, the unicast to which the terminal and the target terminal belong Group logo;

Performing correlation peak detection on the first sequence and the signal received at the resource position of the feedback channel at the resource position of the feedback channel according to the resource position information of the feedback channel;

If a peak value is detected, it is determined that the feedback signal is received, otherwise it is determined that the feedback signal is not received.
The terminal according to claim 18, wherein the processor is further used to read the program in the memory and perform the following process:

Generating a second sequence using tenth information, the tenth information is selected from the following information: the identification of the terminal and the identification of the target terminal, the identification of the terminal and the multicast group to which the target terminal belongs;

Performing correlation peak detection on the second sequence and the signal received at the resource position of the feedback channel at the resource position of the feedback channel according to the resource position information of the feedback channel;

If a peak value is detected, it is determined that the feedback signal is received, otherwise it is determined that the feedback signal is not received.
A terminal includes: a transceiver, a memory, a processor, and a computer program stored on the memory and executable on the processor; wherein,

The transceiver is configured to receive data sent by the source terminal, and the data includes information about the resource location of the feedback channel;

The processor is used to read the program in the memory and perform the following process: decode the data;

The transceiver is further configured to send a feedback signal to the source terminal according to the resource location information of the feedback channel;

In the unicast transmission mode, the feedback signal indicates that the terminal successfully decodes the data; in the multicast transmission mode, the feedback signal is sent when the terminal fails to decode the data.
The terminal according to claim 24, wherein the processor is further used to read the program in the memory and perform the following process:

If the decoding is successful, the eleventh information is used to generate a sequence with correlation. The eleventh information is selected from the following information: the identity of the source terminal, the identity of the source terminal and the identity of the terminal, the The identification of the source terminal and the unicast group to which the terminal belongs;

Use the sequence as a feedback signal, and send the feedback signal to the source terminal according to the resource location information of the feedback channel.
The terminal according to claim 24, wherein the processor is further used to read the program in the memory and perform the following process:

If decoding fails, the twelfth information is used to generate a sequence with correlation, the twelfth information is selected from the following information: the identity of the source terminal and the identity of the terminal, the source terminal and the terminal The identity of the multicast group;

Use the sequence as a feedback signal, and send the feedback signal to the source terminal according to the resource location information of the feedback channel.
The terminal according to claim 24, wherein the processor is further used to read the program in the memory and perform the following process:

Obtain priority information of each source terminal among more than two source terminals;

According to the priority information, the feedback signal is preferentially sent to the source terminal whose priority meets a predetermined requirement.
The terminal according to claim 24, wherein the resource location information of the feedback channel is indicated by SCI.
The terminal according to claim 25 or 26, wherein the sequence having correlation is selected from the following sequence: m sequence, CG sequence, ZC sequence, PN sequence.
A computer-readable storage medium for storing a computer program, wherein, when the computer program is executed by a processor, the steps in the method according to any one of claims 1 to 5 are implemented; or, the computer program When executed by a processor, the steps in the method according to any one of claims 6 to 12 are realized.