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Method and terminal device for beam failure recovery

A technology of terminal equipment and beam, which is applied in the field of communication, can solve problems such as inability to recover from beam failure, and achieve the effect of ensuring data recovery and transmission

Active Publication Date: 2021-03-02
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a method and terminal equipment for beam failure recovery, so as to solve the problem that beam failure cannot be performed if the active BWP is not configured with CORESET-BFR, or the active BWP is not configured with PRACH in the prior art. recovery problem

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  • Method and terminal device for beam failure recovery
  • Method and terminal device for beam failure recovery
  • Method and terminal device for beam failure recovery

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Embodiment Construction

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0034] see figure 1 , figure 1 A schematic diagram of a network architecture provided by an embodiment of the present invention. Such as figure 1 As shown, it includes a user terminal 11 and a base station 12, wherein the user terminal 11 may be a terminal equipment (UE, User Equipment), for example: it may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), Terminal-side devices such as a personal d...

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Abstract

The embodiment of the present invention discloses a method and a terminal device for beam failure recovery. The method includes: when the terminal device detects that a beam failure event occurs on the active BWP of the active bandwidth part, and the active BWP When the control resource set CORESET‑BFR for beam failure recovery is not configured, the target channel resource is used to send the beam failure recovery request BFRQ. In the embodiment of the present invention, when CORESET-BFR is not configured on the active BWP, beam failure recovery can be completed to ensure data recovery and transmission.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and terminal equipment for beam failure recovery. Background technique [0002] The fifth-generation (5G) mobile communication system new air interface (NR, New Radio) introduces large-scale antenna technology, which can better support multi-user-multiple-input multiple-output (MU-MIMO, Multi-User Multiple-Input Multiple-Output ) antenna technology. In order to reduce the equipment cost and baseband processing complexity caused by large-scale antenna arrays, the digital-analog hybrid beamforming technology is used to achieve a rough match between the transmitted signal and the channel. [0003] However, in the digital-analog hybrid beamforming technology, if the active bandwidth part (active BWP, activeBandwidth Part) is not configured with a control resource set (CORESET-BFR, ControlResource Set - Beam Failure Recovery) for beam failure recovery, or active When a phy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/04H04W36/00H04W74/08H04W76/18
CPCH04W28/04H04W36/0055H04W74/0833H04W76/18H04B7/0695H04L5/0023H04L5/001H04L5/0053H04W74/0838H04W72/046H04W72/0453H04W74/004H04W74/006H04W72/20
Inventor 杨宇孙鹏
Owner VIVO MOBILE COMM CO LTD