Patent ID: 8301085

Claim:
A mobile station in communication with an access point (AP), the mobile station comprising: a low noise amplifier (LNA) defining an LNA path; a power amplifier (PA) defining a PA path; and a controller directing a switch to switch between the LNA path and the PA path, the controller comprising: an estimation module to estimate amplifying power of the LNA, transmitting power and a sensitivity threshold of the PA; a connection module communicating with the AP, to acquire a current received signal strength indication (RSSI) value of the AP; a determination module to determine whether amplifying power of the LNA path exceeds the sensitivity threshold of the PA, according to the amplifying power of the LNA, the transmitting power and the sensitivity threshold of the PA, and the RSSI value; and a selection module to send a selection signal to the switch directing the switch to select the LNA path if the amplifying power of the LNA path exceeds the sensitivity threshold of the PA.