Patent ID: 7315526
Filing Date: 2008-01-01
Classification: H04L,H04W

Abstract:
1. A method for enabling a mobile terminal user to seamlessly transition to a second radio access network from a first radio access network which assigned the user a first address for receiving at least one packet, comprising the steps of: detecting at the second radio access network an access request by the mobile terminal user; assigning to the mobile terminal from the second radio access network a co-located address to serve as a source address for packets belonging to sessions originated by the mobile terminal user while accessing the second radio access network; accepting in the second radio access network reply packets from at least one external source that incorporate the co-located address as a destination address, and that are routed without use of the first address; and receiving in the second radio access network from the first radio access network forwarded packets addressed to the mobile terminal user at the first address.