Systems and methods for data path control in a wireless network

• US 8,948,084 B2
• Filed: 05/28/2009
• Issued: 02/03/2015
• Est. Priority Date: 05/15/2008
• Status: Active Grant

• Current Assignee: Telsima Corp. (Aviat Networks Incorporated)
• Original Assignee: Telsima Corp. (Aviat Networks Incorporated)
• Inventors: Beser, Nurettin Burcak, Carlton, Mike, Krishna, Santhosh
• Primary Examiner(s): Kao, Jutai
• Application Number:
  US12/474,231
• Publication Number:
  US 20100067462A1
• Time in Patent Office: 2,077 Days
• Field of Search: None
• US Class Current: 370/328
• CPC Class Codes: H04L 45/00 Routing or path finding of packets in data switching networks routing or path finding in wireless networks H04W40/00
• CPC Class Codes: H04L 45/42 Centralised routing
• CPC Class Codes: H04L 45/54 Organization of routing tables
• CPC Class Codes: H04L 45/563 Software download or update
• CPC Class Codes: H04L 45/566 Routing instructions carried by the data packet, e.g. active networks
• CPC Class Codes: H04W 40/00 Communication routing or communication path finding
• CPC Class Codes: H04W 40/02 Communication route or path selection, e.g. power-based or shortest path routing
• CPC Class Codes: H04W 76/12 Setup of transport tunnels
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

In various embodiments, the data plane may be abstracted from a control plane in a wireless network such as WiMax, WiFi, LTE or the like. In some embodiments, a method comprises a receiving control data at a control server from a source device, generating routing instructions at the control server regarding routing network data based on the control data, providing the routing instructions to a routing device, configuring the routing device based on the routing instructions, receiving network data from the source device, and routing the network data from the source device to a target device using the configured routing device.

Claims

1. A method comprising:

receiving control data in a control plane protocol at an access server network (ASN) server from a mobile station, the ASN server configured to perform control plane functions;

generating routing instructions at the ASN server regarding routing network data based on the control data, the routing instructions comprising an address of a target device to route the network data to, the routing instructions comprising instructions to forward to a specific egress interface incoming traffic that arrives on a specific ingress interface and matches a packet classification rule;

providing the routing instructions to a base station;

configuring the base station based on the routing instructions, the base station being

configured to perform data plane functions;

receiving the network data at the base station from the mobile station; and

routing the network data from the mobile station to the target device using the configured base station.

2. The method of claim 1, wherein the ASN server is a WiMAX server.

3. The method of claim 1, wherein the ASN server is an LTE server.

4. The method of claim 1, wherein providing the routing instructions comprises providing the routing instructions from the ASN server over an R6 interface to the base station.

5. The method of claim 1, wherein the ingress interface comprises a specific generic routing encapsulation (GRE) tunnel and the egress interface comprises an IP to IP tunnel.

6. The method of claim 1, wherein the routing instructions comprise instructions to drop incoming traffic arriving on a specific ingress interface.

7. The method of claim 1, wherein the routing instructions comprise instructions to duplicate outgoing traffic to two or more egress interfaces.

8. The method of claim 1, wherein the routing instructions comprise instructions to buffer packets at an egress interface according to hierarchical quality of service (QoS) policies.

9. The method of claim 1, further comprising matching the network data using packet classification rules to determine a routing function.

10. A system comprising:

an access server network (ASN) server configured to perform control plane functions, including receiving control data in a control plane protocol from a mobile station, generating routing instructions regarding routing network data based on the control data, and providing the routing instructions to a base station, the routing instructions comprising an address of a target device to route the network data to, the routing instructions comprising instructions to forward to a specific egress interface incoming traffic that arrives on a specific ingress interface and matches a packet classification rule; and

an access server network (ASN) base station configured based on the routing instructions to perform data plane functions, including receiving the network data from the mobile station, and routing the network data from the mobile station to the target device based on the routing instructions.

11. The system of claim 10, wherein the ASN control server is a WiMAX server.

12. The system of claim 10, wherein the ASN control server is an LTE server.

13. The system of claim 10, wherein the base station communicates with the ASN server over an R6 interface.

14. The system of claim 10, wherein the ingress interface comprises a specific generic routing encapsulation (GRE) tunnel and the egress interface comprises an IP to IP tunnel.

15. The system of claim 10, wherein the routing instructions comprise instructions to drop incoming traffic arriving on a specific ingress interface.

16. The system of claim 10, wherein the routing instructions comprise instructions to duplicate outgoing traffic to two or more egress interfaces.

17. The system of claim 10, wherein the routing instructions comprise instructions to buffer packets at an egress interface according to hierarchical quality of service (QoS) policies.

18. The system of claim 10, wherein the base station is further configured to match the network data using packet classification rules to determine a routing function.

19. A non-transitory computer readable medium comprising instructions, the instructions executable by a processor to perform a method, the method comprising:

receiving control data in a control plane protocol at an access server network (ASN) server from a mobile station, the ASN server configured to perform control plane functions;

generating routing instructions at the ASN server regarding routing network data based on the control data, the routing instructions comprising an address of a target device to route the network data to, the routing instructions comprising instructions to forward to a specific egress interface incoming traffic that arrives on a specific ingress interface and matches a packet classification rule;

providing the routing instructions to a base station;

configuring the base station based on the routing instructions, the base station being configured to perform data plane functions;

receiving the network data at the base station from the mobile station; and

routing the network data from the mobile station to the target device using the configured base station.

20. A system, comprising:

a means for receiving control data in a control plane protocol at an access server network (ASN) server from a mobile station, the ASN server configured to perform control plane functions;

a means for generating routing instructions at the ASN server regarding routing network data based on the control data, the routing instructions comprising an address of a target device to route the network data to, the routing instructions comprising instructions to forward to a specific egress interface incoming traffic that arrives on a specific ingress interface and matches a packet classification rule;

a means for providing the routing instructions to a base station;

a means for configuring the base station based on the routing instructions, the base station being configured to perform data plane functions;

a means for receiving at the base station the network data from the mobile station; and

a means for routing the network data from the mobile station to the target device using the configured base station.