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A beam failure recovery request sending and receiving method, device and system

A technology of request sending and beam, applied in the field of communication, can solve the problem that PDCCH cannot recover from beam failure in time

Active Publication Date: 2021-04-06
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present application provides a beam failure recovery request sending and receiving method, device and system, which are used to solve the problem that when the UE detects a partial PDCCH beam failure, it will not send a beam failure recovery request to the base station, which will cause failure when some PDCCH beams fail. Problems with timely beam failure recovery

Method used

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  • A beam failure recovery request sending and receiving method, device and system
  • A beam failure recovery request sending and receiving method, device and system
  • A beam failure recovery request sending and receiving method, device and system

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Embodiment 1

[0044] refer to figure 2 As shown, the embodiment of the present invention provides a method for sending a beam failure recovery request, and the method may include the following steps S11-S13.

[0045] S11. The UE detects whether each PDCCH beam in all PDCCH beams fails.

[0046] Wherein, all PDCCH beams are PDCCH beams configured by the base station for UE monitoring.

[0047] That is, the UE detects all PDCCH beams configured by the base station for UE monitoring, and determines whether each beam fails.

[0048] Optionally, whether each PDCCH beam in all PDCCH beams in S11 fails is realized by the following method:

[0049] For each PDCCH beam, the UE performs the following method to determine whether each PDCCH beam fails:

[0050] S111. The UE measures a reference signal of a PDCCH beam to obtain the link quality of the PDCCH beam.

[0051] Optionally, the reference signal of the PDCCH beam may be a beam failure detection reference signal (beam failure detection refe...

Embodiment 2

[0142] refer to image 3 As shown, the embodiment of the present invention provides a method for receiving a beam failure recovery request, and the method includes the following steps S31 and S32.

[0143] S31. The base station receives the report message sent by the UE.

[0144] S32. The base station determines a message type of the report message based on the report message.

[0145] The message types include: the first beam failure recovery request sent by the UE to the base station when the number of failed PDCCH beams is within the preset range, and the second beam failure recovery request sent by the UE to the base station when all PDCCH beams fail; the preset range is greater than 0 and less than the total number of all PDCCH beams; the first beam failure recovery request is different from the second beam failure recovery request.

[0146] In the beam failure recovery request receiving method provided in the above embodiments, when the base station receives the report...

Embodiment 3

[0155] Such as Figure 4 As shown, the embodiment of the present invention provides a UE, and the UE 400 includes a detecting unit 41 and a sending unit 42 . The detection unit 41 is used to detect whether each PDCCH beam in all PDCCH beams fails; all PDCCH beams are PDCCH beams configured by the base station for UE monitoring; the sending unit 42 is used to determine the number of failed PDCCH beams in the detection unit. When within the set range, send the first beam failure recovery request to the base station; the preset range is greater than 0 and less than the total number of all PDCCH beams; the sending unit 42 is also used to determine that all PDCCH beams fail in the detection unit , sending a second beam failure recovery request to the base station; the second beam failure recovery request is different from the first beam failure recovery request.

[0156] Optionally, the detection unit 41 is specifically configured to detect a reference signal of each PDCCH beam in...

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Abstract

Embodiments of the present invention provide a beam failure recovery request sending and receiving method, device, and system, which relate to the field of communication technology and solve the problem that when a UE detects a partial PDCCH beam failure, it will not send a beam failure recovery request to the base station, resulting in partial PDCCH beam failure. The problem that the beam failure recovery cannot be performed in time when it fails. The method includes: the UE detects whether each PDCCH beam in all PDCCH beams fails; all PDCCH beams are PDCCH beams configured by the base station for UE monitoring; Send the first beam failure recovery request; the preset range is greater than 0 and less than the total number of all PDCCH beams; if the UE determines that all PDCCH beams fail, then send the second beam failure recovery request to the base station; the second beam failure recovery request and the first A beam failure recovery request is different.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to a beam failure recovery request sending and receiving method, device and system. Background technique [0002] In a high frequency band communication system, since the wavelength of the wireless signal is relatively short, it is easy to cause communication interruption due to reasons such as signal blocking, user equipment (User Equipment, UE) movement, and the like. [0003] In a high-band communication system, when communication is interrupted, it takes a long time to restore communication by using a traditional wireless link reconstruction method. Therefore, the prior art introduces a beam failure recovery mechanism. The beam failure recovery mechanism generally includes four items: beam failure detection, candidate beam identification, sending beam recovery request, and receiving beam recovery response. The general process of beam failure recovery thro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/28H04W24/04H04W24/10
CPCH04W16/28H04W24/04H04W24/10H04W74/0833H04W76/19H04W48/16H04W24/08H04B7/0695H04B7/0626H04B7/0639H04W72/21H04W72/23
Inventor 杨宇孙鹏马景智
Owner VIVO MOBILE COMM CO LTD