RADIOTELEPHONE ET PROCEDE DE CALIBRAGE D'HORLOGE POUR MODE D'APPEL PAR INTERVALLES DANS UN SYSTEME DE RADIOTELEPHONE CDMA

摘要

A radiotelephone (104) in a radiotelephone system (100) enters a low power sleep mode and times the duration of the sleep mode using a sleep clock generator (205) having a coarse resolution. The radiotelephone synchronizes timing of the radiotelephone to system timing using an oscillator (116) having a fine resolution. The radiotelephone then exits the low power sleep mode synchronized with system timing.