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Beam failure recovery method and terminal equipment

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

Active Publication Date: 2020-02-14
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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  • Beam failure recovery method and terminal equipment
  • Beam failure recovery method and terminal equipment
  • Beam failure recovery method and terminal equipment

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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 can be a terminal equipment (UE, User Equipment), for example: it can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), Terminal-side devices such as personal dig...

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Abstract

The embodiment of the invention discloses a beam failure recovery method and terminal equipment. The method comprises the following steps: when the terminal equipment detects that a beam failure eventoccurs on an active BWP (Bandwidth Partial Active Wavelength Point) and the active BWP is not configured with a control resource set CORESET-BFR for beam failure recovery, a beam failure recovery request BFRQ is sent by using a target channel resource. According to the embodiment of the invention, when the CORESET-BFR is not configured on the active BWP, the beam failure recovery can be completed, and the data recovery transmission is ensured.

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 physi...

Claims

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Application Information

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