Spread communication system and mobile station thereof

Details Spread communication system and mobile station thereof Spread communication system and mobile station thereof

2007-03-27

2007-03-27

Tran, Khanh (Department: 2611)

Pulse or digital communications

Spread spectrum

Direct sequence

Reexamination Certificate

active

11133057

ABSTRACT:
A system including base stations and a mobile station that performs a three-stage cell search process. Each base station includes a transmission unit using at least one carrier frequency for transmitting a perch channel signal, in which the at least one carrier frequency is uniquely distinguishable from carrier frequencies used by other base stations. The mobile station performs a first-stage search of the three-stage cell search and represents a search of a plurality of carrier frequencies; performs a second-stage search of the three-stage cell search and represents a search of a specified carrier frequency; performs a third-stage search of the three-stage cell search and represents a search of said specified carrier frequency; and includes a controller selecting the highest strength or highest correlation value carrier frequency among the carrier plurality of carrier frequencies based on a result of the first-stage search to set the selected carrier frequency as said specified carrier frequency.

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