Patent ID: 8615019
Filing Date: 2013-12-24
Classification: H04L,H04W

Abstract:
1. A method comprising: receiving, at a control node and from an access terminal, a request for a Unicast Access Terminal Identifier (“UATI”); referencing an activity status database to determine whether the access terminal has been identified as subscribing to an Evolution Data Only (“EVDO”) service; assigning a UATI that is invalid at a time of assignment to the access terminal based on determining that the access terminal has not been identified as subscribing to the EVDO service; following the assigning of the invalid UATI to the access terminal, receiving a connection request from the access terminal for an EVDO service; in response to receiving the connection request for the EVDO service, determining whether a UATI assigned to the access terminal having transmitted the connection request is invalid by referencing a UATI database identifying access terminals having been assigned invalid UATIs; and upon determining that the access terminal having transmitted the connection request is identified in the UATI database as an access terminal having been assigned an invalid UATI, performing steps of: