Patent ID: 8249623

Claim:
A method for transmitting a location measurement reference signal for a location based service by a base station (BS) in a wireless communication system, the method comprising: transmitting configuration information of a location measurement zone spanning one or more superframes to transmit the location measurement reference signal; and transmitting the location measurement zone starting from a superframe having a superframe number (SFN) satisfying the following equation, according to the configuration information, mod(SFN S-SFH(SP3) +D-LBS ZP −mod(SFN S-SFH(SP3) ,D-LBS ZP ),2 12 ) [Equation] where SFN S-SFH(SP3) is the last superframe number in a secondary superframe header (S-SFH) change cycle including the configuration information, and D-LBS ZP is a transmission period of the location measurement zone.