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Beam Restoration Method, Base Station, and User Terminal

A technology of user terminal and recovery method, applied in the field of user terminal, beam recovery method and base station, can solve the problem of large resource overhead, etc., achieve the effect of reducing resource overhead, reducing resource overhead, and improving the selection of beam recovery requests

Active Publication Date: 2021-10-15
BEIJING SPREADTRUM HI TECH COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the resource overhead of the above beam recovery method is large

Method used

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  • Beam Restoration Method, Base Station, and User Terminal
  • Beam Restoration Method, Base Station, and User Terminal
  • Beam Restoration Method, Base Station, and User Terminal

Examples

Experimental program
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Embodiment Construction

[0054] In the prior art, UE initialization is supported for beam recovery. Beam restoration aims to re-establish the beam communication link between UE and base station. When the UE measures and estimates that the base station cannot perform beam communication with the UE, the UE sends a beam restoration request signal to the base station, so that the base station re-establishes the beam communication link. In the prior art, the base station configures the resource of the beam recovery request signal for the user terminal through downlink control signaling. However, in the above-mentioned beam restoration method, the base station needs to transmit all content of the resource of the beam restoration request signal configured for the user terminal in the linear control signaling, including the coding method and sequence used by the resource of the beam restoration request signal, etc. etc., resulting in a large resource overhead of the base station.

[0055] In the embodiment ...

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Abstract

A beam restoration method, a base station, and a user terminal, wherein the beam restoration method includes: sending a resource set of a beam restoration request signal to a user terminal; according to received state information of the user terminal, from the beam restoration request signal In the resource set of the corresponding beam restoration request signal, select the resource of the corresponding beam restoration request signal; issue the identification information of the resource of the selected beam restoration request signal to the user terminal; make the user terminal select the resource from the beam restoration request signal according to the identification information Selecting the resources of the beam restoration request signal corresponding to the identification information from the resource set of the restoration request signal, and using the resources of the beam restoration request signal corresponding to the identification information to transmit the beam restoration request signal; receiving the beam recovery request signal sent by the user terminal to perform beam recovery. The above solution can reduce the resource overhead in the process of beam recovery.

Description

technical field [0001] The embodiments of the present invention relate to the field of wireless communication, and in particular, to a method for restoring a beam, a base station, and a user terminal. Background technique [0002] When a user equipment (UE) communicates with a base station, there are factors such as channel fluctuations, communication link congestion, and UE being rotated, which cause the communication beam between the base station and UE to lose alignment, affecting the performance of the wireless communication system. After the beam communication between the base station and the UE is out of alignment, if no special treatment is taken, the wireless link between the base station and the UE will be disconnected, and then it will go to layer 3 (L3) processing, that is, the communication between the base station and the UE The connection is re-established, resulting in a long communication delay. [0003] In the prior art, UE initialization is supported for b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04H04W76/19
CPCH04W72/23
Inventor 王化磊
Owner BEIJING SPREADTRUM HI TECH COMM TECH CO LTD