Patent ID: 8730895

Claim:
A method for operating a user equipment (UE) based on a sounding reference signal (SRS) subframe configuration, the method comprising: defining user equipment (UE) specific Aperiodic Sounding Reference Signal (A-SRS) subframes within a radio subframe; performing a state base operation when defining the UE specific A-SRS subframes; and using, by the user equipment (UE), the UE specific A-SRS subframes, wherein the state base operation comprises configuring the UE with a periodicity and an offset within a set of cell specific SRS subframes of a radio frame, and wherein when a certain period is configured, the UE can schedule A-SRS in all cell specific SRS subframes in a radio frame, and when another period is configured, only one subframe can be scheduled within a set of cell specific SRS subframes in a radio frame for A-SRS transmission.