SUPL Mobile Location Server Capacity Caching

The patent applies preliminary action by having the mobile set and positioning server exchange positioning method capacities only once before the actual location calculation begins. The server stores this capacity information and reuses it for subsequent periodic location requests, eliminating the need to repeatedly exchange the same capacity data. This preliminary exchange of information resolves the contradiction by preparing the necessary data in advance rather than continuously transmitting it.

The patent applies the copying principle by having the positioning server store a copy of the mobile set's positioning method capacities after the initial exchange. Instead of requesting the original capacity data again for each periodic location calculation, the server uses the stored copy. This ensures service continuity while dramatically reducing radio data transmission and associated energy consumption.

The patent resolves this contradiction by performing the capacity exchange action preliminarily - only once at the beginning of the service. For all subsequent periodic location requests and updates, the server uses the previously exchanged and stored capacity information. This allows high-frequency location information repetition while minimizing data transmission overhead to only the essential location calculation data, not the repeated capacity exchange data.