Patent ID: 8180378

Claim:
A method of providing a location based service to an access terminal in a mobile communication system, the method comprising: transmitting one or more access probes, each of the one or more access probes comprising a preamble having a first specific length and transmitted at a first power level, wherein the preamble is utilized to determine a position of the access terminal; and transmitting one or more additional access probes, at least one of the one or more additional access probes having a second specific length and transmitted at a second power level, wherein transmitting the one or more additional access probes comprises: transmitting a first of the one or more additional access probes having the second specific length at the second power level; and transmitting a second of the one or more additional access probes having a third specific length at a third power level, wherein at least the second specific length and the third specific length are different or the second power level and the third power level are different.