Patent ID: 7466776
Filing Date: 2008-12-16
Classification: H03G

Abstract:
1. An automatic gain control method used in a wireless receiver, the wireless receiver being for receiving a plurality of signal blocks sent by a wireless transmitter, each of the plurality of signal blocks comprising at least one frame, the wireless transmitter having a discontinuous transmission mode, the method comprising: receiving a first frame, amplifying a RF signal corresponding to the first frame with a gain value and down converting the RF signal to generate a baseband signal; updating the gain value according to the power level of the baseband signal corresponding to the first frame, wherein the updated gain value is for amplifying the RF signal corresponding to a second frame when receiving the second frame; determining whether a first signal block is in the discontinuous transmission mode or not, wherein the first frame belongs to the first signal block, wherein determining whether the first signal block is in the discontinuous transmission mode or not further comprises: