WO2020088135A1 - Procédé de traitement d'informations et terminal - Google Patents

Procédé de traitement d'informations et terminal Download PDF

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Publication number
WO2020088135A1
WO2020088135A1 PCT/CN2019/106430 CN2019106430W WO2020088135A1 WO 2020088135 A1 WO2020088135 A1 WO 2020088135A1 CN 2019106430 W CN2019106430 W CN 2019106430W WO 2020088135 A1 WO2020088135 A1 WO 2020088135A1
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Prior art keywords
terminal
feedback signal
information
feedback
sequence
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PCT/CN2019/106430
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English (en)
Chinese (zh)
Inventor
郑石磊
郑方政
冯媛
赵锐
马腾
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电信科学技术研究院有限公司
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Publication of WO2020088135A1 publication Critical patent/WO2020088135A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/46—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for vehicle-to-vehicle communication [V2V]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1809—Selective-repeat protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/04—Error control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management

Definitions

  • the present disclosure relates to the field of communication technology, and in particular, to an information processing method and terminal.
  • V2X Vehicle totoX
  • the present disclosure provides an information processing method and terminal to improve the utilization rate of communication resources.
  • the present disclosure provides an information processing method, which is applied to a source terminal, and includes:
  • 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 determining whether to perform retransmission according to the detection result includes:
  • unicast transmission mode if the feedback signal is not detected, retransmission is performed; if the feedback signal is detected, retransmission is not performed;
  • 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 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.
  • SCI Servicelink Control Information
  • SCI is used to indicate the resource location information of the feedback channel.
  • 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;
  • the detecting whether the feedback signal is received according to the resource location information of the feedback channel includes:
  • 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;
  • 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
  • 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 sending a feedback signal to the source terminal according to the resource location information of the feedback channel includes:
  • 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;
  • the sending a feedback signal to the source terminal according to the resource location information of the feedback channel includes:
  • 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;
  • the method further includes:
  • the sending a feedback signal to the source terminal according to the resource location information of the feedback channel includes:
  • the feedback signal is preferentially sent to the source terminal whose priority meets a predetermined requirement.
  • the resource location information of the feedback channel is indicated by SCI.
  • the related sequence is selected from the following sequences: m sequence, CG sequence, ZC sequence, PN sequence.
  • 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
  • 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 retransmission module is specifically used for:
  • unicast transmission mode if the feedback signal is not detected, retransmission is performed; if the feedback signal is detected, retransmission is not performed;
  • 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 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 processing module configured to send a feedback signal to the source terminal according to the resource location information of the feedback channel
  • 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.
  • 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.
  • 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.
  • 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;
  • 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 processor is also used to read the program in the memory and perform the following process:
  • unicast transmission mode if the feedback signal is not detected, retransmission is performed; if the feedback signal is detected, retransmission is not performed;
  • 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 processor is also 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 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.
  • the processor is also 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;
  • the processor is also used to read the program in the memory and perform the following process:
  • 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;
  • 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;
  • 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 processor is also used to read the program in the memory and perform the following process:
  • 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;
  • the processor is also used to read the program in the memory and perform the following process:
  • 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;
  • the processor is also used to read the program in the memory and perform the following process:
  • the feedback signal is preferentially sent to the source terminal whose priority meets a predetermined requirement.
  • the resource location information of the feedback channel is indicated by SCI.
  • the related sequence is selected from the following sequences: m sequence, CG sequence, ZC sequence, PN sequence.
  • 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.
  • 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.
  • 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
  • FIG. 7 is a second schematic diagram of a multicast scenario
  • Figure 8 is the third schematic diagram of the multicast scenario
  • FIG. 10 is a second schematic diagram of a terminal according to some embodiments of the present disclosure.
  • FIG. 11 is a third schematic diagram of a terminal according to some embodiments of the present disclosure.
  • FIG. 12 is a fourth schematic diagram of a terminal according to some embodiments of the present disclosure.
  • FIG. 13 is a fifth schematic diagram of a terminal according to some embodiments of the present disclosure.
  • FIG. 14 is a sixth schematic diagram of a terminal according to some embodiments of the present disclosure.
  • 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.
  • the source terminal refers to a communication initiation terminal
  • 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.
  • 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).
  • RRC Radio Resource Control
  • Source UE User Equipment
  • 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.
  • Step 102 Detect whether the feedback signal is received according to the resource location information of the feedback channel.
  • 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.
  • 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.
  • the identity eg, ID
  • the identity of the target terminal Such as ID
  • Group ID the identification of the multicast group to which the source terminal and the target terminal belong
  • 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.
  • the unicast transmission mode if the feedback signal is not detected, retransmission is performed; if the feedback signal is detected, retransmission is not performed.
  • 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 target terminal whether in unicast mode or multicast mode, the target terminal only needs to feed back one state after decoding, thereby further saving resources.
  • 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.
  • 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.
  • 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.
  • 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 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.
  • 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.
  • the related sequences include but are not limited to the following sequences: m sequence, CG sequence, ZC sequence, PN sequence, etc.
  • 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.
  • 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.
  • 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.
  • LTE Long Term Evolution, Long Term Evolution
  • 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.
  • HARQ Hybrid Automatic Repeat request
  • ACK acknowledgement response
  • NACK negative response
  • Destination UE 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.
  • 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.
  • the feedback channel has an independent resource pool, which is configured by high-level RRC (Radio Resource Control) or pre-configured (pre-configured).
  • RRC Radio Resource Control
  • pre-configured pre-configured
  • this dynamic scheduling process is based on a certain selection principle, which does not belong to the scope of protection of this patent.
  • Source UE can adjust the members of the group without conflicting with each other.
  • 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.
  • 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).
  • NR DMRS Demodulation Reference Signal, demodulation reference signal
  • 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.
  • 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.
  • 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.
  • 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.
  • FIG. 4 it is one of the schematic diagrams of unicast scenarios.
  • 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.
  • 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.
  • FIG. 5 it is one of the schematic diagrams of unicast scenarios.
  • the Destination and UE cannot perceive this situation.
  • 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.
  • 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.
  • each Destination UE may need feedback.
  • 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.
  • 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.
  • 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.
  • 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.
  • FIG. 8 it is one of the schematic diagrams of the multicast scenario.
  • 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.
  • 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.
  • 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
  • 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 retransmission module 903 is specifically used for:
  • 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.
  • 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.
  • SCI is used to indicate the resource location information of the feedback channel.
  • 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.
  • the detection module 902 may include:
  • a second generation sub-module for generating a second sequence using 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.
  • 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.
  • 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;
  • 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;
  • 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.
  • processing module 1103 may include:
  • 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.
  • processing module 1103 may include:
  • 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.
  • 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.
  • 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.
  • 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.
  • 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:
  • 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 transceiver 1310 is used to receive and transmit data under the control of the processor 1300.
  • 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.
  • 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:
  • unicast transmission mode if the feedback signal is not detected, retransmission is performed; if the feedback signal is detected, retransmission is not performed;
  • 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 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;
  • 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:
  • the transceiver 1410 is used to receive and transmit data under the control of the processor 1400.
  • 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.
  • 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 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;
  • 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;
  • the feedback signal is preferentially sent to the source terminal whose priority meets a predetermined requirement.
  • the resource location information of the feedback channel is indicated by SCI.
  • the related sequence is selected from the following sequences: m sequence, CG sequence, ZC sequence, PN sequence.
  • 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:
  • 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 determining whether to perform retransmission according to the detection result includes:
  • unicast transmission mode if the feedback signal is not detected, retransmission is performed; if the feedback signal is detected, retransmission is not performed;
  • 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 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.
  • SCI is used to indicate the resource location information of the feedback channel.
  • 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;
  • the detecting whether the feedback signal is received according to the resource location information of the feedback channel includes:
  • 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;
  • 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:
  • Receiving data sent by the source terminal including the resource location information of the feedback channel in the data
  • 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 sending a feedback signal to the source terminal according to the resource location information of the feedback channel includes:
  • 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;
  • the sending a feedback signal to the source terminal according to the resource location information of the feedback channel includes:
  • 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;
  • the method further includes:
  • the sending a feedback signal to the source terminal according to the resource location information of the feedback channel includes:
  • the feedback signal is preferentially sent to the source terminal whose priority meets a predetermined requirement.
  • the resource location information of the feedback channel is indicated by SCI.
  • the related sequence is selected from the following sequences: m sequence, CG sequence, ZC sequence, PN sequence.
  • the disclosed method and apparatus may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the units is only a division of logical functions.
  • 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.
  • 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.
  • 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.

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Abstract

La présente invention concerne un procédé de traitement d'informations et un terminal. Le procédé de traitement d'informations de la présente invention consiste : à envoyer des données à un terminal cible, les données comprenant des informations de position de ressource d'un canal de rétroaction de sorte que le terminal cible envoie un signal de rétroaction en fonction des informations de position de ressource du canal de rétroaction; à détecter, en fonction des informations de position de ressource du canal de rétroaction, si le signal de rétroaction est reçu; et à déterminer s'il faut effectuer une retransmission selon le résultat de détection, dans un mode de transmission en monodiffusion, le signal de rétroaction étant envoyé lorsque le terminal cible réussit à décoder les données, et dans un mode de transmission en multidiffusion, le signal de rétroaction étant envoyé lorsque le terminal cible ne parvient pas à décoder les données.
PCT/CN2019/106430 2018-10-31 2019-09-18 Procédé de traitement d'informations et terminal WO2020088135A1 (fr)

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