Patent ID: 8660015

Claim:
A method for use by a network-based wireless location system (WLS) to locate a mobile device, or user equipment (UE), wirelessly communicating with a relay node (RN), wherein the RN is wirelessly backhauled to a serving donor enhanced NodeB (donor eNB), wherein the RN has eNB functionality to communicate with the UE and has UE functionality to communicate data from the UE with the donor eNB, and wherein during operation a donor eNB-to-RN signaling link and a RN-to-UE signaling link are established, the method comprising: receiving uplink transmissions from the RN; using the uplink transmissions from the RN to compute a location estimate for the RN; determining a range value indicating a distance between the UE and the RN; and determining a location estimate for the UE based on the location estimate for the RN and the range value; wherein the RN is configured to rebroadcast control and reference signals provided by the donor eNB and to relay bidirectional data between the donor eNB and the UE, and wherein the RN is further configured to transmit synchronization channels and reference symbols and possess a cell identification (LTE Physical Cell ID); provide half-duplex with in-band (F1) retransmissions; and provide signal isolation between the donor eNB-to-RN signaling link and the RN-to-UE signaling link via time-division scheduling.