Patent ID: 8009612
Filing Date: 2011-08-30
Classification: H04W

Abstract:
1. A method of establishing an alternate HRPD signaling link between an HRPD access network and an access terminal over a non-HRPD access, comprising: pre-establishing an HRPD session over a non-HRPD access defined as at least one of a non-HRPD air interface, a non-HRPD access network and a non-HRPD core network; providing a signal forwarding function (SFF) between an access terminal and a high rate packet data (HRPD) access network; establishing a data tunnel between the access terminal and the SFF; exchanging HRPD signaling messages and HRPD data via the data tunnel; identifying the HRPD access network and the access terminal over non-HRPD access by the SFF, by reading a header comprising HRPD sector identification and access terminal identification and mapping the header to an address of one of the access terminal and the access network; and forwarding the HRPD signaling messages and the HRPD data that arrive at the SFF from the access terminal and the HRPD access network to the HRPD access network and the access terminal respectively.