Patent ID: 9107209
Filing Date: 2015-08-11
Classification: H04L,H04W

Abstract:
1. A method of dynamically triggering an aperiodic uplink sounding reference signal SRS for a carrier aggregation system, wherein an uplink schedule in the system comprises an SRS request field, the method comprising: pre-assigning mapping relationships between different values of the SRS request field in the uplink schedule and joint coding of a carrier aggregation parameter and at least one user-specific SRS parameters, the carrier aggregation parameter indicating one or more carrier component; determining the carrier aggregation parameter and the at least one user-specific SRS parameter; assigning values to the SRS request field in the uplink schedule based on the pre-assigned mapping relationships, the determined carrier aggregation parameter, and the at least one user-specific SRS parameter; and transmitting the uplink grant.