METHOD FOR INCREASING COMMUNICATION RANGE IN A TWO-WAY COMMUNICATION SYSTEM

摘要

A portable communication unit (120) which operates in a wireless communication system (100) comprising at least one fixed communication unit (102). The fixed communication units (102) are capable of communicating with the portable communication unit (120) at a first bit rate. There exists a method for decreasing group delay distortion and for increasing the communication range between the plurality of fixed communication units (102) and the portable communication unit (120) comprising the steps of: (a) establishing communication between the fixed communication units (120) and the portable communication unit (120) at the first bit rate, the established communication having a communication range associated with the first bit rate; (b) dividing the first bit rate into integer multiples for obtaining a second bit rate lower than the first bit rate; and (c) establishing communication at the second bit rate wherein the communication at the second bit rate decreases the group delay distortion thereby increasing the communication range between the fixed communication units (102) and the portable communication unit (120).