Patent ID: 8818396

Claim:
A method for estimating a geographical position corresponding to a wireless device event, comprising: receiving at least one of a first geographical position data of the wireless device corresponding to a first location fix having a first Quality of Service (QoS) and a second geographical position data of the wireless device corresponding to a second location fix having a second QoS, wherein the first and second QoS result in fixes based at least partly on terrestrial wireless communication measurements, wherein at least one of the first geographical position data and the second geographical position data are derived from a Mobile Station-Assisted (MS-Assisted) mode of location determination; determining an estimated geographical position of the wireless device based on a predetermined relationship between the event and at least one of the first geographical position data and the second geographical position data, wherein determining an estimated geographical position of the wireless device based on a predetermined relationship comprises selecting the estimated geographical position of the wireless device from one of the first geographical position data of the wireless device and the second geographical position data of the wireless device, wherein the predetermined relationship comprises one or more time relationships comprising a time difference between (a) a time corresponding to the event and (b) a time corresponding to any one of: the first geographical position data and the second geographical position data; comparing the one or more time relationships to one or more corresponding predetermined time thresholds, wherein the one or more predetermined time thresholds comprise a predetermined time threshold and a low time threshold; and selecting the first geographic position data as a basis for the estimated geographic position if, the first geographical position data corresponds to a first fixed geographical position of the wireless device before a time corresponding to the event and the first time difference between (a) a time corresponding to the first geographical position data, and (b) a time corresponding to the event is within the low time threshold, and the second geographical position data corresponds to a second fixed geographic position of the wireless device after the time corresponding to the event and the second time difference between (a) the time corresponding to the first geographical position data, and (b) a time corresponding to the event is outside of the predetermined time threshold.