Patent ID: 8483707

Claim:
A method in a wireless terminal for use in a location determination approach using time of arrival estimates between the wireless terminal and a plurality of base stations in a cellular network, the method comprising: receiving assistance data from a serving base station for use in receiving a position reference signal used to determine a time of arrival of respective position reference signals from the plurality of base stations relative to a time reference, wherein the assistance data includes a list of base stations, each base station included in the list to be one of used or excluded from use as part of the plurality of base stations for receiving the position reference signal and determining the time of arrival estimate for the received position reference signal, and wherein the assistance information includes a white list of base stations, which includes base stations other than the serving base station to be used for receiving a position reference signal and determining a time of arrival estimate for the received position reference signal, where the white list includes base stations in addition to base stations from other received lists of neighbor base stations that are received as part of a message from the serving base station; receiving the position reference signal for each of the plurality of base stations, where for each of the plurality of base stations a time of arrival estimate is determined for each of the respective received position reference signals; and forwarding the time of arrival estimates for each of the plurality of base stations to a location determination entity.