Tunneling packet exchange in long term evolution protocol based networks

Patent metadata

Field	Value
Publication number	US-9510376-B2
Application number	US-201314036919-A
Country	US
Kind code	B2
Filing date	Sep 25, 2013
Priority date	Sep 25, 2013
Publication date	Nov 29, 2016
Grant date	Nov 29, 2016

Abstract

A system that incorporates the subject disclosure may include, for example, receiving from a wireless device a request for a network connection and facilitating, in response to the request, a communication session between a wireless access node in communication with the wireless device and a packet data network. Control signals are exchanged between a second network device and a packet data network gateway. The second network device includes a mobility anchoring function and operating in an evolved packet core of a long term evolution system. Eligibility of the wireless communication device to participate in a direct tunnel connection is determined, the direct tunnel allowing transfer of user data packets between the wireless device and packet data network to bypass the mobility anchoring function. Establishment of the direct tunnel connection is facilitated to transfer multiple user data packets between the wireless device and the packet data network.

First claim

What is claimed is:

1. A method comprising:
receiving, by a processing system comprising a processor, a request for a network connection between a wireless communication device and a packet data network accessible by a packet data network gateway function of a Third Generation Partnership Project evolved packet core (3GPP EPC);
facilitating, by the processing system, a communication session between an evolved node B (eNB) of a Third Generation Partnership Project (3GPP) evolved universal terrestrial radio access network (EUTRAN) and the 3GPP EPC by way of the packet data network gateway function, wherein the eNB is in wireless communication with the wireless communication device, wherein the facilitating of the communication session comprises an exchange of control signaling between a serving gateway function of the 3GPP EPC and the packet data network gateway function, wherein the 3GPP EPC coordinates an exchange of messages between the wireless communication device and the packet data network according to a 3GPP long term evolution system architecture;
determining, by the processing system, a mobility metric of the wireless communication device;
determining, by the processing system, eligibility of the wireless communication device to participate in a direct tunnel connection to the packet data network gateway function, based at least in part on comparing the mobility metric with a preconfigured value obtained from a mobility management entity of the 3GPP EPC; and
identifying, by the processing system, a direct tunnel responsive to the determining of the eligibility, wherein the direct tunnel comprises a first tunnel connection between the evolved node B of the 3GPP EUTRAN and the packet data network gateway function of the 3GPP EPC, that bypasses the serving gateway function of the 3GPP EPC, to transfer a plurality of user data packets between the wireless communication device and the packet data network.

2. The method of claim 1 , wherein the direct tunnel comprises uplink packets of the plurality of user data packets at the evolved node B having a first destination address of the packet data network gateway of the 3GPP EPC, and downlink packets of the plurality of user data packets at the packet data network gateway of the 3GPP EPC having a second destination address of the evolved node B.

3. The method of claim 2 , further comprising:
determining, by the processing system, an updated mobility metric of the wireless communication device;
comparing, by the processing system, the updated mobility metric to a mobility threshold; and
identifying, by the processing system, a revised tunnel solution responsive to the comparing of the updated mobility metric to the mobility threshold, wherein the revised tunnel solution comprises a second tunnel connection to transfer the plurality of user data packets between the wireless communication device and the packet data network by way of the serving gateway function of the 3GPP EPC.

4. The method of claim 3 , wherein the revised tunnel solution comprises implementation of a 3GPP general packet radio service protocol.

5. The method of claim 2 , wherein the direct tunnel presents an S1 user plane interface address of the evolved node B to the wireless communication device and an S5 user plane interface address of the packet data network gateway to the packet data network, wherein the S1 user plane interface and the S5 user plane interface comprise 3GPP EPC interfaces.

6. The method of claim 1 , wherein the mobility metric comprises one of an international mobile subscriber identity number series, an international mobile station equipment identity range, an access point name list, a local policy breakout for roamers or combinations thereof.

7. The method of claim 1 , wherein the mobility metric comprises one of a rate of handovers of the communication session between different evolved node Bs, a rate of tracking area update events or a combination thereof, the method further comprising:
monitoring, by the processing system, activity of the wireless communication device;
comparing, by the processing system, the activity to an activity threshold; and
identifying, by the processing system, a revised tunnel solution responsive to the comparing of the activity to the activity threshold, wherein the revised tunnel solution comprises a second tunnel connection to transfer the plurality of user data packets between the wireless communication device and the packet data network by way of the serving gateway function of the 3GPP EPC.

8. A non-transitory machine-readable storage medium comprising executable instructions that, when executed by a processing system including a processor, facilitate performance of operations, comprising:
receiving a request for a network connection between a wireless communication device and a packet data network;
facilitating a communication session between a wireless access node in wireless communication with the wireless communication device and the packet data network, wherein the facilitating of the communication session comprises an exchange of control signaling between a serving gateway function and a packet data network gateway function of a Third Generation Partnership Project evolved packet core network (3GPP EPC) of a Third Generation Partnership Project (3GPP) long term evolution system;
determining a mobility metric of the wireless communication device; and
identifying a tunnel responsive to the determining of the mobility metric, wherein the tunnel comprises a first tunnel connection between the wireless access node and the packet data network gateway function that bypasses the serving gateway function, to transfer a plurality of user data packets between the wireless communication device and the packet data network.

9. The non-transitory machine-readable storage medium of claim 8 , wherein the first tunnel connection comprises uplink packets of the plurality of user data packets at the wireless access node having a first destination address of the packet data network gateway of the packet core network, and downlink packets of the plurality of user data packets at the packet data network gateway of the packet core network having a second destination address of the wireless access node.

10. The non-transitory machine-readable storage medium of claim 9 , further comprising:
determining an updated mobility metric of the wireless communication device;
comparing the updated mobility metric to a mobility threshold; and
identifying a revised tunnel solution responsive to the comparing of the updated mobility metric to the mobility threshold, wherein the revised tunnel solution comprises a second tunnel connection to transfer the plurality of user data packets between the wireless communication device and the packet data network by way of the serving gateway function.

11. The non-transitory machine-readable storage medium of claim 10 , wherein the revised tunnel solution comprises implementation of a general packet radio service protocol.

12. The non-transitory machine-readable storage medium of claim 9 , wherein the first tunnel connection presents an S1 user plane interface address of the wireless access node to the wireless communication device and an S5 user plane interface address of the packet data network gateway to the packet data network.

13. The non-transitory machine-readable storage medium of claim 8 , wherein the mobility metric comprises one of an international mobile subscriber identity number series, an international mobile station equipment identity range, an access point name list, a local policy breakout for roamers or combinations thereof.

14. The

Assignees

• At & T Ip I Lp
• At & T Ip I Lp

Inventors

• Wang Jiansong
• Redfern Ryan

Classifications

• H04W76/041

  Electricity · mapped topic

• H04W76/022 Primary

  Electricity · mapped topic

• H04W36/0005 Primary

  Control or signalling for completing the hand-off · CPC title

• H04W76/043

  Electricity · mapped topic

• H04W76/023

  Electricity · mapped topic