Patent ID: 6658242
Filing Date: 2003-12-02
Classification: H04B,H04L

Abstract:
A wireless telephone system, comprising:(a) a base transceiver having a base receiver; and (b) a plurality of wireless handsets, each handset comprising a handset transceiver for establishing a wireless link over a shared channel with the base unit via the base transceiver, the base receiver comprising synchronization means comprising an automatic gain control (AGC) loop, a carrier tracking loop (CTL), and an equalization loop, characterized in that the synchronization means is for synchronizing with each handset, in accordance with a set of demodulation parameters for said each handset, wherein each set of demodulation parameters comprises an AGC state parameter for determining the state of the AGC loop, a CTL frequency parameter and a CTL NCO parameter for determining the state of the CTL loop, and a set of equalization coefficients for determining the state of the equalization loop, characterized in that the synchronization means stores a set of demodulation parameters for each handset in accordance with the demodulation parameters utilized for the most recent time slot for the handset and switches to a stored set of demodulation parameters for a particular handset when the base unit is to synchronize with the particular handset.