Patent ID: 11949488
Assignee: ZTE CORPORATION
Field: Telecommunications (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 11:
12. A method for realizing beam alignment, comprising:
in response to a reception of first signals with effective signal strengths through a first group of analog subarrays and a second group of the analog subarrays by adopting receiving beams having a same beam direction, acquiring the first signals received by the first group of the analog subarrays, the first signals received by the second group of the analog subarrays, a difference between phase centers of two analog subarrays in the first group of the analog subarrays, and a difference between phase centers of two analog subarrays in the second group of the analog subarrays; wherein each of the first and second group of the analog subarrays comprises two analog subarrays with a same polarization mode;
keeping the beam directions of the receiving beams of the first group of the analog subarrays and the second group of the analog subarrays unchanged, performing a first change of the difference between the phase centers of the first group of the analog subarrays, acquiring second signals received by the first group of the analog subarrays and the difference between the phase centers after the first change of the first group of the analog subarrays, performing a first change of the difference between the phase centers of the second group of the analog subarrays, and acquiring second signals received by the second group of the analog subarrays and the difference between the phase centers after the first change of the second group of the analog subarrays; and
estimating a Direction Of Arrival (DOA) of a receiving signal, and directing a center of a receiving beam to the estimated DOA, according to the first signals and the second signals received by the first group of the analog subarrays, the difference between the phase centers before the first change and the difference between the phase centers after the first change of the first group of the analog subarrays, the first signals and the second signals received by the second group of the analog subarrays, the difference between the phase centers before the first change and the difference between the phase centers after the first change of the second group of the analog subarrays.