US 12,216,220 B2
Method and apparatus for measuring angle of arrival
Ben Wang, Beijing (CN); and Dejian Li, Beijing (CN)
Assigned to SHENZHEN YINWANG INTELLIGENT TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed on Jun. 24, 2022, as Appl. No. 17/848,652.
Application 17/848,652 is a continuation of application No. PCT/CN2019/128614, filed on Dec. 26, 2019.
Prior Publication US 2022/0342025 A1, Oct. 27, 2022
Int. Cl. G01S 3/14 (2006.01)
CPC G01S 3/14 (2013.01) 18 Claims
OG exemplary drawing
 
1. A method for measuring an angle of arrival (AoA), comprising:
receiving a first signal by using a first antenna array and a second antenna array;
determining L×N values based on received values obtained by the first antenna array and the second antenna array by receiving the first signal, wherein the first antenna array comprises L rows of array elements arranged in a first direction and K columns of array elements arranged in a second direction, and the second antenna array comprises P rows of array elements arranged in the first direction and Q columns of array elements arranged in the second direction; N=K+Q, P<L, L, K, P, and Q are all positive integers; the L×N values comprise received values obtained by each array element in the first antenna array by receiving the first signal, and values determined based on received values obtained by the Q columns of array elements in the second antenna array by receiving the first signal; and an included angle greater than 0 degrees exists between the first direction and the second direction; and
determining an AoA of the first signal based on the L×N values,
wherein the L×N values are divided into L groups of values, each group of values comprises N elements, N elements in an lth group of values comprise K received values obtained by an lth row of array elements in the first antenna array by receiving the first signal, and Q values determined based on the received values obtained by the Q columns of array elements in the second antenna array by receiving the first signal, an arrangement order of the N elements is the same as an arrangement order of the K columns of array elements in the first antenna array and the Q columns of array elements in the second antenna array in the second direction, and l is any integer from 1 to L.