Downlink beam management method, base station and terminal

A management method and beam technology, applied in the directions of transmission path sub-channel allocation, digital transmission system, signaling allocation, etc., can solve the problems of multi-time-frequency resources, occupation, etc., and achieve less time-frequency resources, improve communication quality, and avoid interference. Effect

Active Publication Date: 2021-10-01
WUHAN HONGXIN TELECOMM TECH CO LTD
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  • Application Information

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Problems solved by technology

[0004] The present invention provides a downlink beam management method, a base station and a terminal, which are used to solve the defect that the CSI-RS carried by each SSB beam occupies more time-frequency resources in the prior art, and to realize the management of downlink beams. Time-Frequency Resources

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  • Downlink beam management method, base station and terminal
  • Downlink beam management method, base station and terminal
  • Downlink beam management method, base station and terminal

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Embodiment Construction

[0048] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention , but not all examples. 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.

[0049] In the description of the invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indi...

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Abstract

The invention provides a downlink beam management method, a base station and a terminal. The method comprises the following steps: receiving an access request sent by a target terminal through a first SSB beam; under the condition that the number of the accessed terminals does not exceed the threshold value, allocating a target CSI-RS resource to the target terminal, and sending the target CSI-RS to the target terminal through the first SSB beam; and sending the downlink service information and the control signaling to the target terminal through the first SSB beam. According to the downlink beam management method, the base station and the terminal provided by the invention, the SSB beam sent by the base station does not carry the CSI-RS, and the base station sends the target CSI-RS to the target terminal through the first SSB beam and sends the downlink service information and the control signaling to the target terminal through the first SSB beam, so that when the downlink beam is managed, less time-frequency resources are occupied, interference to an adjacent region can be avoided, and the communication quality of 5G NR can be improved.

Description

technical field [0001] The present invention relates to the technical field of communications, and in particular to a downlink beam management method, a base station and a terminal. Background technique [0002] In high-band scenarios, 5G NR can increase the coverage distance of cells through beamforming, realize multi-user space separation, and improve spectrum utilization, so as to meet the needs of more diverse scenarios. [0003] In the existing management of downlink beams in 5G NR, the base station can configure multiple SSBs (SynchronizationSignal and PBCHblock, synchronization information block). Each SSB is transmitted with a narrow beam, and the beam scanning direction of each SSB beam is different. The base station can cover the entire cell through polling and scanning of the SSB beam. Each SSB beam carries a CSI-RS (Channel state information Reference Signal, channel state information reference signal). Before the base station sends downlink service information...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04W72/04H04W72/12
CPCH04L5/0048H04L5/0053H04L5/0073H04W72/046H04W72/20H04W72/23
Inventor 张敏江世宇
Owner WUHAN HONGXIN TELECOMM TECH CO LTD
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