Patent ID: 8199700

Claim:
A method for an interworking device to interwork with a first network to exchange data between a second network and a terminal device, the method comprising: establishing, with the first network, a first wireless data path that follows a first wireless communication protocol; receiving a first network address, allocated to the interworking device by an address allocation server of the first network, from the address allocation server of the first network through the first wireless data path; establishing a second wireless data path that follows a second wireless communication protocol with the terminal device; receiving a second network address, allocated to the terminal by an address allocation server of the second network, from the address allocation server of the second network through the first wireless data path; transmitting the second network address to the terminal device through the second wireless data path; receiving a third network address, allocated to the interworking device by the address allocation server of the second network, from the address allocation server of the second network through the first wireless data path, wherein the third network address is distinct from the first network address; and exchanging the data for the terminal with the second network via the first wireless data path.