Patent ID: 7206301
Filing Date: 2007-04-17
Classification: H04L,H04W

Abstract:
1. A system of data communication handoff, comprising: a wireless telephony network comprising a base station system (BSS) and a visit location register (VLR) corresponding to the BSS, wherein the BSS manages data communication in a cell, and the VLR generates a temporary authentication identity applicable only in the cell when a mobile terminal is successful authentication for data communication via the wireless telephony network, and transmits the temporary authentication identity to the mobile terminal; and a wireless local area network (WLAN) located in the cell comprises a access point, wherein the access point receives the temporary authentication identity from the wireless telephony network before the mobile terminal associates with the access point, and authenticates the mobile terminal by verifying the temporary authentication identity for data communication via the WLAN upon the mobile terminal associates with the access point.