Method for multi-mode handoff using preliminary time alignment of a mobile station operating in analog mode

摘要: A method for handoff of an analog connection within a cellular communication system which relies upon mobile station synchronization to time is disclosed herein. In order reduce the acquisition commencing operation in digital mode, estimate master transferred mode before entering mode. The alignment operates protocols existing systems, and hence requires only minimal changes station. Time may be initiated base sending command continually transmit periodic signaling tone. compares phase tone from clock determines error signal. notifies delay or advance transmitted tones based on This procedure continue until calculated falls below predetermined level. Having attained alignment, able transfer absolute day information with increased accuracy. then commanded into where transition reduced level tolerable by end user due performed alignment.