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A beam training method and device

A beam training and beam technology, applied in the field of communication, can solve the problem of high power consumption of UE

Active Publication Date: 2021-06-22
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present application provides a beam training method and device, which are used to solve the problem in the prior art that the UE wakes up in advance to perform beam training in DRX mode, resulting in high power consumption of the UE.

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  • A beam training method and device
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  • A beam training method and device

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Embodiment Construction

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0037] The beam training method provided in the embodiment of the present application may be applied to a communication system in which a user equipment and a network device establish a beam pair link through beam training to communicate. The communication system at least includes: one or more network devices 101, one or more terminal devices 103, the network device 101 and the terminal device 103 respectively determine matching beams in the beam sets 102 and 104 through beam training to establish a beam pair link communication. The communication system involved in the embodiments of the present application may be various types of communication systems, for ex...

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Abstract

A beam training method and device are used to solve the problem in the prior art that the UE wakes up in advance to perform beam training in the DRX mode, resulting in high power consumption of the UE. The method includes: the terminal device determines first information, where the first information includes historical data traffic, or the first information includes beam-to-link coherence time and historical data traffic, and the beam-to-link coherence time is used to characterize the effective time of the beam; The terminal device acquires the target beam based on the first information, and the target beam is used to transmit data after the persistence timer is started.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a beam training method and device. Background technique [0002] The third generation partnership project (3GPP) incorporates the millimeter wave band with abundant spectrum resources into the fifth generation (fifth generation, 5G) cellular communication system standard to meet users' demands for high-speed communication. However, due to the high frequency and short wavelength of millimeter wave signals, they will experience severe path loss during propagation. In order to overcome the serious attenuation of received signal strength caused by path loss, an effective way is to use beamforming to improve the directivity of signal transmission and reception. Due to the limited beam coverage, transmit and receive beams must be efficiently paired to meet the link budget required for communication. Therefore, a user equipment (user equipment, UE) needs to perfor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/28H04W52/02H04W72/02H04W72/04H04W76/28
CPCH04W16/28H04W52/0209H04W52/0258H04W72/02H04W72/046H04W76/28Y02D30/70
Inventor 麦睿楷王琪方平
Owner HUAWEI TECH CO LTD