Patent ID: 9596065
Date: 2017-03-14
CPC Classifications: H04B,H04J,H04L,H04W

Claim:
1. A method of wireless communication, comprising: receiving, from a base station, one or more precoded sounding reference signal (SRS) vectors indicating precoding to apply to a precoded SRS; receiving a plurality of aperiodic SRS triggers, wherein the precoded SRS vectors are received with the plurality of aperiodic SRS triggers and the aperiodic SRS triggers are for triggering transmission of the precoded SRS; detecting, at a mobile device, an observed interference level for each one of a plurality of receiver chains of the mobile device; detecting, at the mobile device, an imbalance between the plurality of receiver chains based on the observed interference level for each one of the plurality of receiver chains; in response to the detected imbalance between the plurality of receiver chains, precoding a SRS to indicate the imbalance; and transmitting the precoded SRS.