Method and apparatus for pilot capture for wireless intersystem handover

Abstract

The present invention provides a method and apparatus applied to pilot capture for handover between wireless communication networks. In the method, when a mobile station needs to hand over from a GSM system serving as current service network to another wireless communication network, the GSM system and the mobile station will update the logic location of the first idle frame to be met subsequently, which will be inserted after the TDMA frame where the corresponding starting point of pilot capture resides, then the mobile station utilizes idle timeslots after the starting point to form a pilot capture time window with a predefined length, eventually the mobile station captures the pilot signal of the another wireless communication network in the pilot capture time window. Comparing to conventional pilot capture method, with the method provided by the present invention, the mobile station not only capture the complete pilot signal of target handover network, but also achieve the whole pilot-capture process with relatively short time.

Dependencies are inferred from the claim text.