Patent ID: 6466788
Filing Date: 2002-10-15
Classification: H04W

Abstract:
A method of requesting and obtaining user position information in a wireless communications system, the system including a plurality of user terminals, at least one mobile switching center and a home location register, and the method comprising the steps of:sending terminal position information from the user terminals to mobile switching centers with which the user terminals are registered; storing the terminal position information in visiting location registers of the receiving mobile switching centers; entering a feature code and a user identification code at a requesting terminal, the feature code and user identification code indicating a request for position information regarding a remote system user associated with the user identification code; sending a user position request message and the user identification code from the requesting terminal to a mobile switching center with which the requesting terminal is registered; forwarding the user position request message from the mobile switching center to the home location register; determining, at the home location register, which user terminals the remote system user is registered with; sending a terminal position request message and the user identification code to each mobile switching center where the remote user is registered on a terminal; retrieving, for each terminal with which the remote user is registered, terminal position information from a visiting location register; sending, for each terminal with which the remote user is registered, a terminal position request acknowledged message, a terminal identification code and retrieved terminal position information to the home location register; and forwarding at least one of the terminal position request acknowledged messages from the home location register to the requesting terminal.