Patent ID: 9749320
Date: 2017-08-29
CPC Classifications: H04L,H04M,H04W

Claim:
1. A method for a wireless local area network (WLAN) user accessing a fixed broadband network, comprising: a broadband network gateway (BNG) device initiating an identity authentication process to an authentication authorization accounting (AAA) server for a wireless local area network (WLAN) user; after the AAA server successfully authenticates the WLAN user, the BNG device acquiring a mobility identifier of the WLAN user from the AAA server; the BNG device allowing a mobility access of the WLAN user after receiving the mobility identifier of the WLAN user; wherein if the BNG device is a broadband remote access server (BRAS), the step of the BNG device allowing a mobility access of the WLAN user after receiving the mobility identifier of the WLAN user comprises: the BRAS enabling all local line cards in a user side to support the mobility access of the WLAN user; the BRAS assigning an IP address to the WLAN user; the WLAN user accessing a network from an AP (access point) and sending data packets; the AP sending the WLAN user's data packets to a BRAS; the AP discovering that the newly accessed WLAN user is successfully authenticated via an AC/AC cloud or the BRAS or a universal PMK key; the BRAS receiving the WLAN user's data packets from different physical ports and/or logical interfaces at the user side, and determining that the WLAN user who sends the data packets is a user who is allowed with the mobility access based on the MAC address and the IP address of the data packets, and forwarding the WLAN user's data packets to the network side; wherein, if the BRAS is a BRAS with a distributed architecture, and if a forwarding plane of line cards of the BRAS at the user side does not have the WLAN user's data, then the BRAS further checking whether the WLAN user has a mobility access authority or not via a line card controlling plane or a master controlling card plane.