Location-aware instant messaging

摘要

A method includes receiving, at a carrier network provider, a request from a requestor's mobile device to locate an instant messaging (IM) friend from the requestor's IM friends list; authenticating the request for use of location-based services on the carrier network; receiving geographic location coordinates from the requestor's mobile device; adding random error to the geographic location coordinates; sending the request to locate an IM friend and the geographic location coordinates with random error to an IM portal; receiving a list of the requestor's IM friends within a particular region near the geographic location coordinates with random error; and sending to the requestor's mobile device the list of IM friends within the particular region near the geographic location coordinates with random error.