Patent ID: 7218275

Claim:
A test apparatus for use in optimizing a location-based service (LBS) by updating a maximum antenna range (MAR) set for a base station in location-based service system including a position determination entity, the test apparatus comprising: a key input part for inputting data to set the test apparatus to a conventional-GPS (C-GPS) operation mode or an assisted-GPS (A-GPS) operation mode; a GPS antenna for receiving GPS signals transmitted from at least one GPS satellite; an RF (Radio Frequency) antenna for receiving an RF signal; a C-GPS receiver for receiving a first set of GPS signals through the GPS antenna, extracting first navigation data from the first set of GPS signals and generating a C-GPS geolocation information by using the first navigation data, wherein the C-GPS geolocation information includes the latitude and the longitude of measurement location and number of GPS satellites transmitting the first set of GPS signals; an A-GPS receiver for receiving a second set of GPS signals by using an assistance data received from the position determination entity, extracting second navigation data from the second set of GPS signals and generating an A-GPS data by using the second navigation data and the RF signal, wherein the A-GPS data includes number of the GPS satellites transmitting the second set of GPS signals and network ID and base station ID of the RF signal; an embedded board having a CPU for setting the test apparatus to the C-GPS operation mode or the A-GPS operation mode according to a mode key received from the key input part, controlling the C-GPS receiver to generate the C-GPS geolocation information in the C-GPS operation mode and controlling the A-GPS receiver to generate the A-GPS data in the A-GPS operation mode; and a wireless modem for modulating the C-GPS geolocation information and the A-GPS data, generating and transmitting a MAR optimizing data signal for use in optimizing the MAR, wherein the MAR optimizing data signal comprises the C-GPS geolocation information obtained in the C-GPS operation mode and the A-GPS data obtained in the A-GPS operation mode.