Method and apparatus for measuring angle of arrival

An apparatus for measuring an angle of arrival (AoA), comprising:

• a transceiver, configured to receive a first signal by using a first antenna array and a second antenna array;
• and
• a processor, configured to determine 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
• the processor is further configured to determine 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.

A non-transitory computer readable medium, wherein the non-transitory computer readable medium stores program instructions, and when the program instructions are executed by a computer system, cause the computer system to perform operations 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.