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Relay terminal selection method, terminal and storage medium

A relay and terminal technology, applied in the field of communication, can solve the problem of low efficiency in relaying, achieve the effects of reducing quantity, improving efficiency, and reducing feedback time

Pending Publication Date: 2022-04-22
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The embodiment of the present application provides a method for selecting a relay terminal, a terminal and a storage medium to solve the problem of low efficiency in selecting a relay in the prior art

Method used

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  • Relay terminal selection method, terminal and storage medium
  • Relay terminal selection method, terminal and storage medium
  • Relay terminal selection method, terminal and storage medium

Examples

Experimental program
Comparison scheme
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no. 1 example

[0084] In the first embodiment, it is assumed that the first UE is the source UE, the second UE is the target UE, and the source UE and the target UE communicate directly through SL, and the relay needs to be switched to UE-to-UE Relay :

[0085] The selection process of the target relay UE is as follows: figure 2 As shown, the selection process of the target relay UE includes the following steps:

[0086] Step 1. The source UE and the target UE judge whether to perform relay selection according to the relay terminal selection trigger condition, wherein the relay terminal selection trigger condition may be but not limited to one or a combination of the following conditions:

[0087] The channel quality or signal reception strength between the source UE and the target UE is less than a first preset threshold;

[0088] The bit error rate or block error rate between the source UE and the target UE is greater than a second preset threshold;

[0089] receiving indication inform...

no. 2 example

[0099] In the second embodiment, it is assumed that the first UE is the source UE, the second UE is the target UE, and the source UE and the target UE communicate through the source relay UE, and perform Relay reselection in the case of UE-to-UE Relay :

[0100] The selection process of the target relay UE is as follows: image 3 As shown, the selection process of the target relay UE includes the following steps:

[0101] Step 1. The source UE and the target UE judge whether relay reselection is required according to the relay terminal selection trigger condition, wherein the relay terminal selection trigger condition may be but not limited to one or a combination of the following conditions:

[0102] The channel quality or signal reception strength between the source UE and the source relay UE is less than a third preset threshold;

[0103] The bit error rate or block error rate between the source UE and the source relay UE is greater than a fourth preset threshold;

[010...

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Abstract

Provided in an embodiment of the present application are a relay terminal selection method, a terminal and a storage medium, applied to a first UE communicating with a second UE, the method comprising: when determining to select or reselect a relay UE, the first UE measuring to obtain a first relay candidate result and receiving a second relay candidate result sent by the second UE, the first relay candidate result comprises a first relay candidate list meeting a relay condition and a first channel measurement result list corresponding to the first relay candidate list; the second relay candidate result is measured by the second UE and comprises a second relay candidate list meeting the relay condition and a second channel measurement result list corresponding to the second relay candidate list; and selecting target relay UE from the first relay candidate list and the second relay candidate list according to the first channel measurement result list and the second channel measurement result list. According to the embodiment of the invention, the relay selection efficiency is improved.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to a method for selecting a relay terminal, a terminal and a storage medium. Background technique [0002] For some scenarios, because there is a certain distance between SideLink (SL) terminals (UEs), direct communication cannot be performed, but both are adjacent to third-party UEs. In order to realize communication between UEs in this case, the The third-party UE can be responsible for data transfer as a relay (Relay), and the Relay is called UE-to-UE Relay. In addition, for an off-network UE, in order to enable it to communicate with the network, an adjacent on-network UE can be selected for the off-network UE to relay data for it, and the on-network UE is called UE-to-Network Relay. Regardless of UE-to-UE Relay or UE-to-Network Relay, the remote UE and the Relay UE can be moved, so the selection and reselection of the Relay UE must be considered. Conte...

Claims

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Application Information

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IPC IPC(8): H04W40/22
CPCH04W40/22
Inventor 张惠英
Owner DATANG MOBILE COMM EQUIP CO LTD