Patent ID: 6862454
Filing Date: 2005-03-01
Classification: H04W

Abstract:
1. A method of providing a data message in a communication system that has a plurality of local service providers comprising: (a) identifying a location of a passive device by finding one of said plurality of local service providers that has control over communications of an active device that is associated with said passive device, wherein said passive device is capable of receiving messages transmitted by said local service provider and incapable of transmitting messages to said local service provider; (b) transmitting said data message to said local service provider for transmission to said passive device; and (c) repeating steps (a) and (b) for an additional data message, wherein the local service provider identified by the repeated step (a) is a local service provider that currently has control over the communications of said active device, whereby the passive device is movable from said location to a new location and still able to receive said additional data message.