COMMUNICATION SYSTEM AND METHOD

摘要

A method of authenticating a user terminal (104) with an access node (108) providing restricted access to a communication network (106,126), comprising: the user terminal transmitting a request for an authentication token to a trusted network node (128) via an unrestricted channel on the access node, the request comprising a network identity for a user of the user terminal; the network node verifying the identity of the user using the network identity, generating an authentication token and transmitting the authentication token to the user terminal via the unrestricted channel; the user terminal deriving login information from the authentication token and providing the login information to the access node; and the access node authenticating the login information and removing the restricted access such that the communication network can be accessed by the user terminal.