Adaptive intelligent routing in a communication system

• US 10,291,529 B2
• Filed: 02/03/2017
• Issued: 05/14/2019
• Est. Priority Date: 12/22/2010
• Status: Active Grant

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Dahod, Ashraf M., Schoener, Anthony, Chowdhury, Kuntal, Schwartz, Leonard, Harper, Matthew H., Virgile, Kenneth E., Gibbs, Andrew
• Primary Examiner(s): Moore, Jr., Michael J
• Application Number:
  US15/424,601
• Publication Number:
  US 20170149667A1
• Time in Patent Office: 830 Days
• Field of Search: None
• CPC Class Codes: H04L 12/66 Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
• CPC Class Codes: H04L 45/308 Route determination based on user's profile, e.g. premium users
• CPC Class Codes: H04L 47/122 by diverting traffic away from congested entities
• CPC Class Codes: H04L 47/20 Traffic policing
• CPC Class Codes: H04L 67/148 Migration or transfer of sessions
• CPC Class Codes: H04W 28/02 Traffic management, e.g. flow control or congestion control
• CPC Class Codes: H04W 8/04 Registration at HLR or HSS [Home Subscriber Server]

Abstract

This disclosure relates to a system and method for routing data packets adaptively in a communication system. As the proliferation of data rich content and increasingly more capable mobile devices has continued, the amount of data communicated over mobile operator'"'"'s networks can continue to exponentially increase. One way to accommodate increased data traffic and provide high quality data communication services to end users is by utilizing network resources efficiently. This disclosure provides systems and methods for efficiently utilizing network resources by providing adaptive intelligence to data packet routing systems.

Claims

1. A computer-implemented method of adaptive routing in a communication system, the computer-implemented method comprising:

establishing, at a router residing within a radio access network, a communication channel with a network access server, wherein the radio access network is coupled between a core network and a base station configured to communicate wirelessly with a client executing on a mobile device, the mobile device configured to (i) implement a device policy in order to regulate communication between the mobile device and a packet data network and (ii) initiate, according to the device policy, a first connection anchored at the network access server and a second connection anchored at the router;

maintaining, at the router, session information associated with the second connection;

receiving from the network access server over the communication channel a router policy that includes instructions for monitoring the client;

monitoring the client according to the router policy by operation of one or more computer processors and in order to determine whether the mobile device is communicating with the packet network in compliance with the device policy;

monitoring, at the router, call events and data flow events associated with the mobile device in order to generate analytics data; and

transmitting the analytics data to the network access server over the communication channel.

2. The computer-implemented method of claim 1, wherein the analytics data includes one or more of a call detail record (CDR), a usage detail record (UDR), an event detail record (EDR), or a data flow event including a detection of a communication inconsistency, a cached data packet, or a service disruption record.

3. The computer-implemented method of claim 1, further comprising determining at the router that a communication inconsistency has occurred during communication with the mobile device and reporting the communication inconsistency to the network access server.

4. The computer-implemented method of claim 3, wherein the communication inconsistency includes a use of an invalid Internet Protocol (IP) address by the client and a use of an invalid access technology type (ATI) by the client.

5. The computer-implemented method of claim 1, further comprising providing communication between the mobile device and the packet data network while bypassing the network access server.

6. The computer-implemented method of claim 1, further comprising bridging a local peer-to-peer communication between a first session having a first Internet Protocol (IP) address and a second session having a second IP address by delivering data packets from the first session to the second session.

14. The computer-implemented method of claim 1, wherein operation of the client on the mobile device is transparent to one or more other applications executing on the mobile device, wherein the computer-implemented method further comprises:

upon determining non-compliant communication between the mobile device and the packet network, notifying, via the communication channel, the network access server of the non-compliant communication.

15. The computer-implemented method of claim 14, wherein the analytics data includes a call detail record (CDR), a usage detail record (UDR), an event detail record (EDR), and one or more data flow events including detection of:

a communication inconsistency, a cached data packet, and a service disruption record;

wherein the non-compliant communication includes a use of an invalid Internet Protocol (IP) address by the client and a use of an invalid access technology type by the client, wherein the router is co-located with a broadband network gateway (BNG), wherein the computer-implemented method further comprises;

providing communication between the mobile device and the packet data network while bypassing the network access server.

16. The computer-implemented method of claim 15, wherein the client comprises a first client, wherein the session comprises a first session, wherein the mobile device comprises a first mobile device, wherein the computer-implemented method further comprises:

upon detecting a connection request between the first client and a second client having a second session with the router, the second client executing on a second mobile device, causing the first and second clients to be bridged locally in order to reduce data connection latency and data transfer overhead between the first and second clients, whereafter the router delivers packets from the first session to the second session.

17. The computer-implemented method of claim 16, wherein each of the first and second connections comprises a respective packet data network connection, wherein the client is configured to communicate control plane transactions through the network access server in order to initiate communication with the one or more packet data network, wherein the control plane transactions include communicating protocols and mechanisms for establishing and maintaining data communication with the one or more packet data networks;

wherein the network access server comprises a gateway that couples the core network to the packet data network, wherein the gateway comprises, in respective instances, a packet data network gateway and a gateway general packet radio service (GPRS) support node, wherein the network access server is configured to communicate with a policy server.

18. The computer-implemented method of claim 17, further comprising:

providing an adaptive-routing framework, the adaptive-routing framework including a plurality of components including an adaptive-routing controller, an adaptive-routing client comprising the client, and an adaptive router comprising the router;

wherein the adaptive-routing controller is co-located with, in respective instances, the network access server and the policy server, wherein the adaptive-routing controller is configured to;

determine the device policy based on end-user-subscription type, network type, access-point-name type, lawful-intercept status, cost structure, quality of experience, service level agreement, and mobile device type;

whereafter the determined device policy is transmitted to the client to implement; and

determine the router policy based on;

whether to charge the client for a network service, granularity of a charging plan for the network service, analytics type, lawful-intercept status, video streaming rule, and video caching rule;

wherein the determined router policy is transmitted to the router to implement.

19. The computer-implemented method of claim 18, wherein the device policy comprises a first device policy received over one of the first and second connections using an Open Mobile Alliance-Device Management (OMA-DM) protocol, wherein the first device policy is implemented for communicating a first type of data, wherein a second device policy is implemented for communicating a second type of data, the first and second types of data being distinct;

wherein the network access server is further configured to establish a general packet radio service (GPRS) tunneling protocol-user (GTP-U) bearer plane context for the first connection using a GPRS tunneling protocol-control (GTP-C) signaling with a mobile backhaul;

wherein the router is further configured to establish a GTP-U bearer plane context for the second connection using a GTP-C signaling with the mobile backhaul.

20. The computer-implemented method of claim 19, wherein the first client communicates with the network access server and the router via a WiFi access point and an interworking gateway, wherein the first client is implemented as a firmware of the mobile device, wherein the first client is updated during a network update, wherein the device policy includes instructions to coordinate and adjust network resources for the mobile device;

wherein when a seamless mobility between a cellular network and a wireless local area network (WLAN) is desired, the first client operates a mobile IP protocol over a WLAN connection in order to attach to the router;

wherein the first connection is associated with voice data, wherein the second connection is associated with video data.

7. A router comprising:

an interface to provide communication with a network access server and a mobile device, wherein the router resides within a radio access network coupled between a core network and a base station configured to communicate wirelessly with a client executing on the mobile device, the mobile device configured to implement a device policy for communicating with a packet data network, the device policy pertaining to communication between the mobile device and the packet data network, the mobile device further configured to initiate, according to the device policy, a first connection anchored at the network access server and a second connection anchored at the router;

a memory to maintain (i) session information associated with the second connection and (ii) a router policy including instructions for monitoring the client;

a processor to monitor the client according to the router policy in order to determine that the client is communicating with the packet data network in compliance with the device policy, (ii) monitor call events and data flow events associated with the mobile device to generate analytics data, and (iii) transmit the analytics data to the network access server.

8. The router of claim 7, wherein the processor is further to determine that a communication inconsistency has occurred during communication with the mobile device and to report the communication inconsistency to the network access server.

9. The router of claim 7, wherein the processor is further to provide communication between the mobile device and the packet data network while bypassing the network access server.

10. The router of claim 7, wherein the processor is further to cause a session bridge module to bridge a local peer-to-peer communication between a first session having a first Internet Protocol (IP) address and a second session having a second IP address by directly delivering data packets from the first session to the second session.

11. The router of claim 7, wherein the analytics data includes one or more of a call detail record (CDR), a usage detail record (UDR), an event detail record (EDR), or a data flow event including a detection of a communication inconsistency, a cached data packet, or a service disruption record.

12. The router of claim 8, wherein the communication inconsistency includes a use of an invalid Internet Protocol (IP) address by the client and a use of an invalid access technology type (ATI) by the client.

13. A non-transitory computer-readable medium containing a program executable to perform an operation for adaptive routing in a communication system, the operation comprising:

establishing, at a router residing within a radio access network, a communication channel with a network access server, wherein the radio access network is coupled between a core network and a base station configured to communicate wirelessly with a client executing on a mobile device, the mobile device configured to (i) implement a device policy in order to regulate communication between the mobile device and a packet data network and (ii) initiate, according to the device policy, a first connection anchored at the network access server and a second connection anchored at the router;

maintaining, at the router, session information associated with the second connection;

receiving from the network access server over the communication channel a router policy that includes instructions for monitoring the client;

monitoring the client according to the router policy by operation of one or more computer processors when executing the program, and in order to determine whether the mobile device is communicating with the packet network in compliance with the device policy;

monitoring, at the router, call events and data flow events associated with the mobile device in order to generate analytics data; and

transmitting the analytics data to the network access server over the communication channel.