Patent ID: 6240292
Filing Date: 2001-05-29
Classification: H04W

Abstract:
A method of conducting a handoff of a mobile station from a first cellular communication system to a second cellular communication system, the first cellular communication system utilizing a code division multiple access (CDMA) communication in accord with a first technique, the second cellular communication system utilizing an alternative communication technique, the method comprising the steps of:conducting a communication session for the mobile station through one of a plurality of base stations of the first cellular communication system in accord with the first communication technique;receiving in the mobile station, a CDMA pilot signal compatible with the first communication technique from a CDMA transmitter associated with one of a plurality of base stations of the second cellular communication system; anddirecting handoff of the mobile station from the base station of the first cellular communication system to a base station of the second cellular communication system utilizing the alternative communication technique, as a function of the CDMA pilot signal received by the mobile station.