Patent ID: 11930358
Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 13:
14. A method of data communication between an access network and a core network, the method comprising:
receiving, by a first wireless access gateway (WAG) in the access network, a first data packet corresponding to a first data flow transmitted by a computer system in the core network, the first data flow being intended for a user equipment (UE), wherein the access network resides outside of the core network, and wherein the core network is a central part of a mobile network to which the first WAG provides direct connectivity;
the first WAG transmitting the first data packet to the UE;
a second WAG receiving, from the UE, a request by the UE for confirmation that an Internet Protocol (IP) address presently assigned to the UE can still be used for the first data flow, the request being received by the second WAG after the UE moves from a first location corresponding to the first WAG to a second location corresponding to the second WAG;
the second WAG determining an identity of the first WAG in the access network in response to the second WAG receiving the request;
in response to determining the identity of the first WAG, establishing a GPRS Tunneling Protocol (GTP) tunnel connection between the first WAG and the second WAG;
after establishing the GTP tunnel connection, receiving by the first WAG a second data packet corresponding to the first data flow;
the first WAG transmitting to the second WAG, via the GTP tunnel connection, the second data packet; and
the second WAG transmitting the second data packet over the access network to the UE.