Title:
BEAM MANAGEMENT METHOD AND SYSTEM BASED ON UPLINK AND DOWNLINK ASYMMETRIC COMMUNICATION MIMO SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/188487
Kind Code:
A1
Abstract:
Disclosed is a beam management method based on an uplink and downlink asymmetric communication MIMO system. The uplink and downlink asymmetric communication MIMO system comprises an uplink sending end and a downlink receiving end that are provided with asymmetric antenna channels, and a plurality of phase shifters are provided on the antenna channel of the receiving end. The method comprises: determining the number of beam switching times according to the antenna channel ratio of the uplink sending end to the downlink receiving end; adjusting, according to the number of beam switching times, the phases of all phase shifters provided on the receiving end, and estimating a single antenna channel after each adjustment to generate channel estimation values corresponding to different phases; recovering the channel estimation values of all the antenna channels according to the channel estimation values corresponding to different phases and the phases of all the phase shifters; and generating a working beam according to the channel estimation values of all the antenna channels and a preset beam design model, and performing beam management by means of the working beam. The time delay of beam scanning and the consumption of resources during phase shifter adjustment can be reduced, and the beam management efficiency can be improved.
Inventors:
YANG KUN (CN)
LAI ZHENGRONG (CN)
LI YONGJUN (CN)
LIU YUAN (CN)
LAI ZHENGRONG (CN)
LI YONGJUN (CN)
LIU YUAN (CN)
Application Number:
PCT/CN2021/136092
Publication Date:
September 15, 2022
Filing Date:
December 07, 2021
Export Citation:
Assignee:
GUANGDONG COMMUNICATIONS & NETWORKS INST (CN)
International Classes:
H04B7/0408; H04B7/06; H04B7/08
Foreign References:
| CN112688722A | 2021-04-20 | |||
| CN109787664A | 2019-05-21 | |||
| CN107017933A | 2017-08-04 | |||
| EP3588805A1 | 2020-01-01 |
Attorney, Agent or Firm:
SBZL IP LAW OFFICE (CN)
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