Patent ID: 8340693

Claim:
A serving base station configured to perform uplink time difference of arrival (U-TDOA), comprising: processing circuitry to: measure a first timing adjustment by receipt of a first upload (UL) burst from a mobile station in a first granted slot of a first orthogonal frequency division multiple access (OFDMA) frame; and determine a position of the mobile station based at least in-part on the first timing adjustment received by the serving base station, a second timing adjustment from a non-serving base station, a third timing adjustment from a second non-serving base station, and a fourth timing adjustment from a third non-serving base station; and network interface circuitry to receive the second timing adjustment from the non-serving base station, the third timing adjustment from the second non-serving base station, and the fourth timing adjustment from the third non-serving base station, the second timing adjustment being measured by the non-serving base station from receipt of a second UL burst from the mobile station in a second granted slot of a second OFDMA frame.