System and method for acquiring a signal acquisition assistance data

A system and method for acquiring a signal acquisition assistance data. A signal acquisition assistance data, such as a satellite body and the base station is obtained for receiving an apparatus such as a wireless location assisted position determination device to search for signals from any source. Data may be obtained based on the evaluation of changes in parameters such as time and location may jeopardize the effectiveness of, from the data captured in the past. In some cases, data may be adjusted to changes in the parameters. Especially if the containing clearer parameters than those acquisition assistance data provided have been generally provided by the remote component, and more data is correct, it uses the partial measurement of the signal set it can be calculated by the receiver and. Detected movement of the mobile station that can not be corrected unless compromised the effectiveness of the previous data, the new data until the validity of the previous data due to limitations of the extrapolation of the time using the Doppler coefficient is lost there is no need to be acquired.