06058338 is referenced by 202 patents and cites 2 patents.

A method and apparatus for efficiently transmitting location assistance information to a mobile communication device over a control channel with a minimal impact on the capacity of the control channel. A position location server provides a difference between satellite locations which have been computed using Almanac data and then Ephemeris data. Sending only the difference between the locations and clock corrections computed using the two different data types, the total amount of information to be transmitted to a mobile communication device is significantly reduced. Furthermore, by providing rate of change information, the method and apparatus allows the location assistance information to remain valid for a relatively long time after it is has been received by the mobile communication device.

Title
Method and apparatus for efficient GPS assistance in a communication system
Application Number
9/250771
Publication Number
6058338
Application Date
February 12, 1999
Publication Date
May 2, 2000
Inventor
Samir S Soliman
San Diego
CA, US
Alkinoos Hector Vayanos
San Diego
CA, US
Parag A Agashe
San Diego
CA, US
Agent
Bruce W Greenhaus
R Ben Miller
Assignee
Qualcomm Incorporated
CA, US
IPC
G06F 7/70
View Original Source