APPARATUS AND METHOD FOR TRANSMISSION OF UPLINK SOUNDING REFERENCE SIGNALS IN A WIRELESS NETWORK

摘要

A mobile station for use in a wireless network that operates according to the Long-Term Evolution Advanced (LTE-A) standard. The mobile station is operable to transmit an aperiodic sounding reference signal (SRS) to a base station in response to a triggering grant received from the base station. The bandwidth on which the mobile station transmits the aperiodic SRS depends on a type of the triggering grant. The type of the triggering grant is one of a downlink grant, an uplink multiple-input, multiple-output (MIMO) grant, and an uplink single-input, multiple-output (SIMO) grant.

主权项

1. A mobile station for use in a wireless network, the mobile station comprising:
a processing circuitry configured, when a total transmit power for a sounding reference symbol exceeds a maximum transmit power, to scale the transmit power of the sounding reference symbol for each of a plurality of cells with a scaling factor such that a total of scaled transmit power of the sounding reference symbol for each of the cells is equal to or less than the maximum transmit power; and a transmitter configured to transmit a sounding reference signal on the sounding reference symbol, wherein the scaling factor is same across the cells.