Power control system for a receiver chain in a transceiver

摘要

A transceiver may include an antenna tuning control system operably associated with an antenna tuner to control the current power levels of the transmission signal and the receive signal. The antenna tuner control system may receive transmit power control (TPC) information, which was transmitted to the transceiver from a base station on the receive signal. The TPC information may be utilized to change the current power level of the transmission signal to a desired transmission power level. In addition, the antenna tuner control system may generate receive power control (RPC) information. The RPC information may be utilized to change the current power level of the receive signal to a desired receive power level. The antenna tuner control system is operable to adjust the pass band in accordance with the TPC information and the RPC information.

主权项

1. A transceiver, comprising:
a transmitter circuit operable to up convert a first transmission signal into a first physical uplink channel, the transmitter circuit comprising a transmission amplification circuit operable to amplify the first transmission signal in accordance with a first adjustable gain; a receiver circuit operable to down convert a first receive signal out of a first physical downlink channel, wherein the first receive signal includes transmission power control information for adjusting the first transmission signal to a first specific transmission power level; an antenna tuner operably associated with the transmitter circuit and the receiver circuit, wherein the antenna tuner provides a pass band; and a transceiver power control system comprising;
a transmission power control system configured to adjust the first adjustable gain of the transmission amplification circuit to reduce a difference between a current power level of the first transmission signal and the first specific transmission power level;an antenna tuner control system operable to receive power control information for adjusting the first receive signal to a first specific receive power level, wherein the antenna tuner control system is configured to adjust the pass band in accordance with the receive power control information and the transmission power control information; wherein the transceiver power control system is configured to enable the transmission power control system to adjust the first adjustable gain and reduce the difference between the current power level of the first transmission signal and the first specific transmission power level when the current power level of the first transmission signal is less than a first power limit and enable the antenna tuner control system to adjust the pass band in accordance with the transmission power control information if the current power level of the first transmission signal is greater than the first power limit.