公开(公告)号：US20180287568A1

公开(公告)日：2018-10-04

申请号：US15897073

申请日：2018-02-14

Applicant: QUALCOMM Incorporated

Inventor： Rahul Malik ,  Bo Li

IPC: H03F1/32 ,  H04L25/02 ,  H03F3/191

Abstract: This disclosure provides systems, methods and apparatuses for compensating for differences in path delays and phase offsets between receive paths of a wireless device. In one aspect, a device receives a first wireless signal using first and second receive paths, determines a first channel phase response of the first wireless signal as received by the first receive path, and determines a second channel phase response of the first wireless signal as received by the second receive path. The device compares the first and second channel phase responses with an expected channel phase response, and determines, for each of the first receive path and the second receive path, one or more phase correction values based on the comparison. The device adjusts the first and second channel phase responses based on the phase correction values.