US 12,451,978 B2
Near-field measurements for far-field calibration of antenna arrays
Vasanthan Raghavan, West Windsor Township, NJ (US); Kobi Ravid, Closter, NJ (US); and Junyi Li, Fairless Hills, PA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Mar. 13, 2023, as Appl. No. 18/182,754.
Prior Publication US 2024/0313869 A1, Sep. 19, 2024
Int. Cl. H04B 17/13 (2015.01); H04B 17/21 (2015.01); H04B 17/327 (2015.01)
CPC H04B 17/13 (2015.01) [H04B 17/21 (2015.01); H04B 17/327 (2015.01)] 30 Claims
OG exemplary drawing
 
1. A method of wireless communication performed by a user equipment (UE), the method comprising:
receiving, from a wireless communication device located at a first distance from the UE, a plurality of reference signals, wherein the plurality of reference signals are associated with determining a set of phase values corresponding to antenna elements of an antenna array for reception operations;
determining a first set of calibration adjustment coefficients associated with the set of phase values to be used for transmission operations from the antenna elements of the antenna array at the UE to the wireless communication device located at the first distance from the UE; and
transmitting, to a network unit located at a second distance from the UE, a communication signal with phase values based on a second set of calibration adjustment coefficients, wherein the second set of calibration adjustment coefficients are based on the first set of calibration adjustment coefficients and a distance adjustment factor based on the first and second distances of the wireless communication device and the network unit from the UE, respectively.