Patent ID: 6463259
Filing Date: 2002-10-08
Classification: H04Q

Abstract:
A mobility processing method using a V5.2 protocol in a communication system, which employs a V5.2 protocol having a V5.2 protocol stack as a standard, and which includes an access network which exchanges data with a plurality of users and a local exchange which exchanges data with the access network, comprising:defining, in both the access network and the local exchange, an extended protocol stack to augment the V5.2 protocol stack to include messages for location registration, port assignment, and port cancellation of a mobile user in accordance with the V5.2 protocol of the access network and the local exchange; and defining in the protocol stack mobility-related protocol states, mobility-related control protocol states, and mobility-related PSTN (public switched telephone network) protocol states of the V5.2 protocol, in accordance with states assumed by the protocol stack in response to the defined messages.