METHOD AND APPARATUS FOR COORDINATING TRANSMISSION OF SHORT MESSAGE WITH HARD HANDOFF SEARCH IN WIRELESS COMMUNICATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To coordinate time required by a mobile station to search for an alternative system used for performing hard hand-off.

SOLUTION: The mobile station receives a command instructing a mobile station as for tuning at an alternative frequency to search for the display of the presence of an alternative system. A predetermined time is defined with respect to a reference point of time common between a starting base station and the mobile station. The mobile station executes search only during the predetermined time synchronously with the alternative frequency. Further, the mobile station coordinates a transmission report indicating the result of searching for the alternative system so that the report can be transmitted from the mobile station when the mobile station is tuned at the starting frequency.

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