Methods, Apparatus and Systems for Managing Converged Gateway Communications

• US 20140341109A1
• Filed: 06/01/2012
• Published: 11/20/2014
• Est. Priority Date: 06/02/2011
• Status: Abandoned Application

• Current Assignee: InterDigital Patent Holdings, Inc. (InterDigital, Inc.)
• Original Assignee: InterDigital Patent Holdings, Inc. (InterDigital, Inc.)
• Inventors: Cartmell, John, Tomici, John L., Balazinski, Bartosz, Reznik, Alexander, Greiner, David G., McNally, John M., Lynch, Kenneth F., Chitrapu, Prabhakar R., Mack, Jane, Palanisamy, Suresh, Shaheed, Khasim, Kundalkar, Siddhartha
• Application Number:
  US14/123,505
• Publication Number:
  US 20140341109A1
• Time in Patent Office: Days
• US Class Current: 370/328
• CPC Class Codes: H04L 43/50 Testing arrangements
• CPC Class Codes: H04L 45/308 Route determination based on user's profile, e.g. premium users
• CPC Class Codes: H04L 47/2475 for supporting traffic characterised by the type of applications
• CPC Class Codes: H04W 28/0263 involving mapping traffic to individual bearers or channels, e.g. traffic flow template [TFT]
• CPC Class Codes: H04W 36/14 Reselecting a network or an air interface
• CPC Class Codes: H04W 36/22 for handling the traffic
• CPC Class Codes: H04W 40/02 Communication route or path selection, e.g. power-based or shortest path routing
• CPC Class Codes: H04W 8/04 Registration at HLR or HSS [Home Subscriber Server]
• CPC Class Codes: H04W 88/16 Gateway arrangements

Abstract

Systems and methods for providing a converged gateway (CGW) may be disclosed. A policy may be by the CGW to make routing decisions (e.g. segregation and/or aggregation of flows or traffic associated with data) for various interfaces and/or radio access technologies (RATs) that may be included in a LAN, device, and/or communication system. The policy may be locally stored within the CGW. Dynamic flow management, load balancing, offloading, PDF context establishment, prioritization, detection of devices, and the like may also be provided and/or implemented in the CG W and may be used to route flows and/or traffic associated with data.

Claims

1. A method for segregating data, the method comprising:

storing a policy for a device on a converged gateway (CGW), the device comprising a first interface and a second interface;

receiving a flow addressed to the device at the CGW, the flow comprising a packet;

identifying a flow type of the packet at the CGW; and

transmitting the packet from the CGW to the device via one of the first and second interfaces identified in a policy associated the flow type when the device is reachable via the first and second interfaces.

2. The method of claim 1, wherein the flow type of the packet is identified as at least one of the following:

HTTP video, HTTP data, peer-to-peer file sharing, web-based file sharing, streaming online video, flash online video, streaming peer-to-peer online video, audio, File Transfer Protocol (FTP) data, and Voice over IP (VoIP) data.

3. The method of claim 2, wherein the flow type of the packet is identified using one of a shallow packet inspection or a deep packet inspection.

4. The method of claim 1, further comprising inspecting the packet to identify the flow type.

5. The method of claim 1, wherein identifying a flow type of a packet comprises identifying the flow type based on a previously identified flow type.

6. The method of claim 1, further comprising:

prior to identifying the flow type of the packet, transmitting the packet to the device based on a default interface identified in the policy.

7. The method of claim 1, wherein the first interface comprises a cellular interface and the second interface comprises a Wi-Fi interface.

18. The method of claim 1), wherein the second radio access technology is a non-cellular radio access technology.

19. The method of claim 18, wherein the non-cellular technology comprises a Wi-Fi technology, and wherein the node associated with the second radio access technology comprises a Wi-Fi Access Point (AP).

8. A method for segregating data, the method comprising:

receiving a packet from a mobile core network addressed to a device;

transmitting the packet via a cellular network when the device is not reachable over a Wireless Fidelity (Wi-Fi) network; and

determining a packet transport preference for the device and transmitting the packet to the device via the transport preference when the device is reachable over the Wi-Fi network, wherein the transport preference is one of the cellular network or the Wi-Fi network.

9. The method of claim 8, wherein the cellular network comprises at least one of the following:

a Home Node 13 (HMB), an eNodeB (eNB), a Home eNB (HeNB), and a femtocell.

10. The method of claim 8, further comprising identifying a flow using packet inspection;

and

adding identification of flow to a flow routing table when the device is reachable over the Wi-Fi network.

11. The method of claim 10, further comprising:

receiving a second packet from the mobile core network addressed to the device, the second packet having a 3G IP destination address; and

when the device is reachable over the Wi-Fi network, transmitting the second packet to the device via a transport preference identified in the flow routing table.

12. A method for aggregating data, the method comprising:

receiving an Internet Protocol (IP) data flow;

identifying the IF data flow; and

transmitting the IP data flow to user equipment (UE) through a first radio access technology (RAT) and a second RAT based on a policy.

13. The method of claim 12, wherein the first RAT comprises a cellular network and the second RAT comprises a Wi-Fi network.

14. The method of claim 12, wherein the IP data flow is identified as at least one of the following:

HTTP video, HTTP data, peer-to-peer file sharing, web-based file sharing, streaming online video, flash online video, streaming peer-to-peer online video, audio, File Transfer Protocol (FTP) data, and Voice over IP (VoIP) data.

15. The method of claim 12, wherein the policy comprises at least one of the following:

user specific and data type specific.

16. A method for routing data, the method comprising:

receiving, at a converged gateway (CGW) within a mobile network, a network packet from a serving gateway, the network packet being addressed to a node associated with a first radio access technology; and

offloading, at the CGW, the network packet to a node associated with a second radio access technology.

17. The method of claim 16, wherein the first radio access technology comprises a cellular radio access technology, and wherein the node associated with the first radio access technology comprises at least one of the following:

a Home Node B (HNB), eNodeB (eNB), a Home eNB (HeNB), and a femtocell.

20. The method of claim 16, wherein the CGW is transparent relative to the node associated with the first radio access technology and the serving gateway.

21. The method of claim 16, wherein the network packet is part of an IP flow, and where a second network packet of the IP flow is routed, by the CGW, a to the node associated with the first radio access technology.

22. A method for routing traffic, the method comprising:

segregating, at a converged gateway (CGW), a plurality of traffic flows based at least in part on a segregation factor;

assigning, at the CGW, a traffic flow to one of plurality of radio access technology (RAT) connections provided by a terminal device; and

load balancing, at the CGW, the plurality of RAT connections.

23. The method of claim 22, further comprising:

determining, at the CGW, if the traffic flow is able to be reassigned to a different RAT included in the plurality of RATs when the assigned RAT is experiencing a problem; and

reassigning the traffic flow to the different RAT when the traffic flow is reassignable.

24. The method of claim 22, wherein the segregation factor is at least one of the following:

a type of IP flow, a destination address, a source address, and a throughput characteristic.

25. The method of claim 22, wherein the type of IP flow comprises at least one of the following:

HTTP video, HTTP data, peer-to-peer file sharing, web-based file sharing, streaming online video, flash online video, streaming peer-to-peer online video, audio, File Transfer Protocol (FTP) data, and Voice over IP (VoIP) data.

26. The method of claim 22, wherein the assigning of traffic flow is based at least one of the following:

a quality level of the transports, a rule within the CGW, and a number of existing IP Flows on each RAT connection.

27. The method of claim 26, further comprising receiving, by the CGW, the quality level of the RAT connections as measured by the terminal device.

28. The method of claim 26, wherein the rule is stored by a Local Policy Server within the CGW.

29. The method of claim 28, wherein the rule is defined on a per terminal device and a per traffic flow type basis.

30. The method of claim 22, wherein the load balancing is based on at least one of the following:

a Quality level of the RAT connections, a rule within the CGW, and a number of existing IF Flows on each RAT connection.

31. The method of claim 30, further comprising receiving, at the CGW, the quality level of the RAT connections as measured by the terminal device.

32. The method of claim 30, wherein the rule is stored by a Local Policy Server within the CGW.

33. The method of claim 32, wherein the rule is defined on a per nal device and a per traffic flow type basis.

34. A method of routing data, the method comprising:

receiving a plurality of flows addressed to a device, the device having a first radio access technology (RAT) connection and a second RAT connection;

identifying a category of each of the flows;

prioritizing each of the flows based on the category and a classification of a user of the device; and

sending each of the plurality of the flows to the device via one of the first RAT connection and the second RAT connection based on the priority of each downlink flow.

35. The method of claim 34, wherein flows having a top priority are configured to be routed through the first RAT connection, and wherein flows having a bottom priority are routed through the second RAT connection.