US 11,949,488 B2
Method and apparatus for realizing beam alignment
Xiaojiang Guo, Shenzhen (CN)
Assigned to ZTE CORPORATION, Shenzhen (CN)
Appl. No. 17/616,395
Filed by ZTE Corporation, Shenzhen (CN)
PCT Filed Aug. 26, 2020, PCT No. PCT/CN2020/111483
§ 371(c)(1), (2) Date Dec. 3, 2021,
PCT Pub. No. WO2021/037080, PCT Pub. Date Mar. 4, 2021.
Claims priority of application No. 201910816368.8 (CN), filed on Aug. 30, 2019.
Prior Publication US 2022/0278736 A1, Sep. 1, 2022
Int. Cl. H04B 7/08 (2006.01)
CPC H04B 7/088 (2013.01) 25 Claims
OG exemplary drawing
 
1. A method for realizing beam alignment, comprising:
in response to a reception of first signals with effective signal strengths through two analog subarrays with a same polarization mode by adopting receiving beams having a same beam direction, acquiring the first signals received by the two analog subarrays, and a difference between phase centers of the two analog subarrays;
keeping the beam directions of the receiving beams of the two analog subarrays unchanged, performing a first change of the difference between the phase centers of the two analog subarrays, and acquiring second signals received by the two analog subarrays and the difference between the phase centers after the first change of the two analog subarrays;
keeping the beam directions of the receiving beams of the two analog subarrays unchanged, performing a second change of the difference between the phase centers of the two analog subarrays, and acquiring third signals received by the two analog subarrays and the difference between the phase centers after the second change of the two analog subarrays; and
estimating a Direction Of Arrival (DOA) of a receiving signal, according to the first signals, the second signals and the third signals received by the two analog subarrays, the difference between the phase centers before the first change, the difference between the phase centers after the first change and the difference between the phase centers after the second change; and
directing a center of a receiving beam to the estimated DOA.