System for setting coarse GPS time in a mobile station in the asynchronous radio network

摘要

Base station and a method and apparatus for setting a coarse GPS time in the GPS receiver mobile stations communicating location decision entity and (PDE) of (MS) within. The MS, the PDE requests from messages containing columns of expected navigation bits including a predicted time indicator field, after which the identified location, which is decoded. Coarse time is set in response to the time display value. In order to provide a more accurate GPS time, pattern matching can be performed. In order to better set coarse time, for example, by using the network latency expected, the expected error in the time of week, can be determined. By improving the coarse time setting process, the system described herein, allows the use of protocols IS-801 by the MS in an asynchronous network. [Selection Figure Figure 5