US Patent 8254382 Location preference indicator in network access identifier

Wireless communication systems and methods based on network-based IP mobility that use an anchor point location preference indicator in the Network Access Identifier (NAI) used during network entry process in a wireless network to provide an indication of a preference for a mobile subscriber station to obtain an IP address; and operate the wireless network based on Proxy Mobil IP to support the preference in the point location preference indicator in the NAI.