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Operation method and terminal of sidelink

An operation method and terminal technology, applied in the field of communication, can solve problems such as poor transmission performance of Sidelink, and achieve the effect of improving transmission performance

Active Publication Date: 2021-05-07
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Embodiments of the present invention provide a Sidelink operation method and terminal to solve the problem of relatively poor transmission performance of Sidelink

Method used

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  • Operation method and terminal of sidelink
  • Operation method and terminal of sidelink
  • Operation method and terminal of sidelink

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0099] 1. The operator has disabled the physical layer measurement and feedback mechanism in the sidelink preconfigured parameters.

[0100] 2. UE-1 is outside the network coverage, works according to the pre-configured information, and transmits on the sidelink based on the mechanism of physical layer broadcast. Wherein, according to the existing mechanism, the synchronization signal can be simultaneously broadcast to the UE at the receiving end to perform synchronization and receive data.

[0101] 3. UE-1 moves into the network coverage and receives the configuration information broadcast by the network side device. The broadcast configuration enables the physical layer measurement and feedback mechanism, and provides measurement configuration information and feedback configuration information, and UE-1 effectively broadcasts configuration information.

[0102] 4. UE-1 notifies the surrounding UEs of its ability to support measurement and feedback on the sidelink, informs i...

example 2

[0108] 1. UE-1 and UE-2 move into the network coverage, access the network, and report the sidelink capability. UE-1 supports sending measurement reference signal and feedback capability, and UE-2 only supports feedback capability. The network side enables and configures the feedback configuration of UE-1 and UE-2 through RRC signaling, and enables and configures the sidelink measurement reference signal configuration of UE-1.

[0109] 2. UE-1 sends the measurement reference signal on the sidelink according to the configuration on the network side.

[0110] 3. Once UE-2 receives the unicast PSSCH sent by UE-1, it will feed back HARQ-ACK through sidelink.

[0111] 4. Similarly, UE-1 also feeds back HARQ-ACK to UE-2 through the sidelink.

example 3

[0113] 1. UE-1 and UE-2 move into the network coverage, access the network, and report the sidelink capability. UE-1 supports sending measurement reference signals and feedback capabilities, while UE-2 does not support feedback capabilities. The network side enables and configures the feedback configuration of UE-1 through RRC signaling, and enables and configures the sidelink measurement reference signal configuration of UE-1.

[0114] 2. UE-1 sends the measurement reference signal on the sidelink according to the configuration on the network side.

[0115] 3. UE-2 notifies surrounding receiving UEs that it does not enable or support sidelink feedback through the sidelink broadcast.

[0116] 4. UE-1 knows that UE-2 does not enable sidelink feedback by receiving the broadcast information of UE-2. If UE-1 needs to send PSSCH to UE-2, UE-1 can send PSSCH by broadcasting multiple copies of the same number (ie, blind retransmission).

[0117] 5. If UE-2 receives the PSSCH sent ...

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Abstract

Embodiments of the present invention provide a Sidelink operation method and terminal. The method includes: acquiring Sidelink configuration information, where the Sidelink configuration information includes at least one of feedback configuration information and measurement configuration information; according to the Sidelink configuration information , perform at least one of measurement operation and feedback operation on Sidelink. Thereby, the transmission performance of the Sidelink can be improved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a Sidelink operation method and terminal. Background technique [0002] Currently, the Long Term Evolution (LTE) system supports sidelinks (Sidelinks, or translated as sublinks, sidelinks, or sidelinks, etc.), and Sidelinks are used for direct transmission between terminals without going through network devices. However, the Sidelink transmission in the current LTE system is based on broadcasting, and the receiving end does not feed back any information to the sending end. For example, if only one piece of data is sent, the receiving end may not receive it due to various reasons, resulting in low transmission reliability of the system. If the sending end broadcasts multiple copies of the same amount to ensure the reliability of data transmission , but reduces the resource utilization and frequency efficiency of the system. It can be seen that the current transmis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/16H04W24/02H04W52/02H04W4/70
CPCH04W52/0209H04W24/02H04L1/1607H04W4/70Y02D30/70H04L1/1854H04L1/1829H04L5/0048H04W56/0015H04W52/0212H04W24/10H04W72/1263H04W92/18H04B17/309H04W72/23H04W76/11H04W76/27H04L5/0051H04W80/02H04W72/53
Inventor 纪子超
Owner VIVO MOBILE COMM CO LTD