Patent ID: 7003331

Claim:
A mobile device including: an adapter that provides interface to a wireless network; a bus controller operatively coupled to the adapter; I/O devices operatively coupled to the bus controller; a processor subsystem operatively coupled to the bus controller; a power supply generating power on multiple power rails; a power type detector monitoring the power rails and setting an indicia indicative of the type of power being used by said mobile device; a symbol rate generator that generates symbols at a symbol rate, each symbol including a number of bits per symbol, the symbol rate and the number of bits per symbol determined by the type of power being used; and wherein the number of bits per symbol is inversely proportional to the symbol rate and adjusted in order to maintain a constant throughput; and wherein the mobile device communicates with an Access Point that is adapted to; receive a request from the mobile device to operate at a requested symbol rate; determine symbol rates available to communicate in said Access Point; accept the request if any of the available symbol rates are compatible with the requested symbol rate; and deny the request if none of the available symbol rates are compatible with the requested symbol rate.