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Secondary cell beam failure recovery method, terminal and base station

A recovery method and secondary cell technology, applied in the field of communication applications, can solve the problem that the beam failure recovery process cannot be realized.

Inactive Publication Date: 2019-10-18
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the embodiments of the present invention is to provide a secondary cell beam failure recovery method, terminal and base station to solve the problem that the terminal cannot implement the beam failure recovery process on the secondary cell

Method used

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  • Secondary cell beam failure recovery method, terminal and base station
  • Secondary cell beam failure recovery method, terminal and base station
  • Secondary cell beam failure recovery method, terminal and base station

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Embodiment Construction

[0186] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0187] figure 1 It is a schematic flowchart of a beam failure recovery method for a secondary cell according to an embodiment of the present invention, such as figure 1 As shown, the beam failure recovery method of the secondary cell in the embodiment of the present invention, applied to a terminal, includes:

[0188] Step 101: Send a random access request on the uplink carrier of the secondary cell.

[0189] The random access request is specificall...

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Abstract

The invention provides a secondary cell beam failure recovery method, a terminal and a base station, and solves the problem that the terminal cannot realize a beam failure recovery process on a secondary cell. The method comprises the following steps: sending a random access request on an uplink carrier of a secondary cell; and receiving a random access response sent by the base station accordingto the random access request on a downlink control resource set CORESET configured by the base station. According to the recovery method provided by the embodiment of the invention, a beam failure recovery process of the terminal on the SCell of the secondary cell under carrier aggregation CA can be realized, so that the terminal correctly completes uplink and downlink beam identification and matching on the secondary cell, the terminal can normally work on the secondary cell, and reasonable utilization of uplink and downlink resources can also be realized.

Description

Technical field [0001] The present invention relates to the technical field of communication applications, and in particular to a method, terminal and base station for beam failure recovery of a secondary cell. Background technique [0002] In the 5G NR system, beamforming is widely used for transmission. Terminals and base stations transmit signaling and data on certain beams, and there is a correspondence between the receiving and transmitting beams of the base station and the terminal. When the terminal measures that the quality of the current beam channel is not good, it needs to initiate a beam failure recovery (BFR) process. This process is achieved through random access. Specifically, the terminal selects a specific beam and initiates random access. After successful access, it is considered that beam failure recovery is completed on the selected beam. The random access procedure used for beam failure recovery may be non-contention random access or contention random access...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W74/08H04W24/04H04L5/00
CPCH04L5/001H04W24/04H04W74/0833H04L5/00H04W16/18H04W74/08
Inventor 谌丽皮埃尔
Owner DATANG MOBILE COMM EQUIP CO LTD
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