Patent ID: 9270433
Filing Date: 2016-02-23
CPC Classification: H04L,H04W

Claim Text:
1. A method comprising: transmitting a plurality of sets of UE-specific sounding reference signal (SRS) parameters associated with aperiodic SRS (ap-SRS) transmission over different carriers to a user equipment via upper layer messaging in a multi-carrier wireless communication system, wherein the plurality of sets of UE-specific SRS parameters are jointly signaled together via a single radio resource control (RRC) message; determining a selected set of UE-specific SRS parameters and an indicated carrier for the UE; and transmitting a grant to the UE over a primary carrier, wherein the grant comprises information for the UE to send an aperiodic SRS (ap-SRS) over the indicated carrier using the selected set of UE-specific SRS parameters, and wherein the grant further comprises a carrier indicator field indicating the indicated carrier.