METHOD FOR DISPLAYING SET OF CODES BELONGING TO BASE STATION IN TIME DIVISION DUPLEX (TDD) COMMUNICATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To reduce the complication of a circuit configuration required for carrying out a cell search procedure for determining a cell of a communicating party in user equipment for a time division duplex (TDD) communication system using code division multiple access (CDMA) (TDD/CDMA communication system). SOLUTION: A base station sends a synchronization signal in an assigned time slot to user equipment in the TDD/CDMA communication system. The base station has an assigned code group out of a predetermined number of code groups. The base station transmits selected secondary synchronization code signals out of a set of secondary synchronization code signals. The plurality of secondary synchronization code signals numbers less than half of the predetermined number of code groups. The user equipment identifies the transmitted selected secondary code signals. Based on in part the identified secondary synchronization code signals, the assigned code group is determined. COPYRIGHT: (C)2005,JPO&NCIPI