Enhanced encapsulation mechanism using GRE protocol

• US 8,451,851 B2
• Filed: 08/03/2012
• Issued: 05/28/2013
• Est. Priority Date: 08/15/2003
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Apple Inc.
• Inventors: Moussa, Hachem, Serrano, Ricardo, Keith, Kory, El-Beik, Essam, Muhanna, Ahmad
• Primary Examiner(s): Sheikh, Ayaz R.
• Assistant Examiner(s): Moutaouakil, Mounir
• Application Number:
  US13/566,574
• Publication Number:
  US 20120300705A1
• Time in Patent Office: 298 Days
• Field of Search: 455405-408, 370465-467, 370/395.52, 370/474, 379/114.03, 379/114.1, 37911421-11502, 379/121.03
• US Class Current: 370/401
• CPC Class Codes: G06Q 20/145 Payments according to the detected use or quantity
• CPC Class Codes: H04L 12/14 Charging , metering or billing arrangements for data wireline or wireless communications
• CPC Class Codes: H04L 12/1425 involving dedicated fields in the data packet for billing purposes
• CPC Class Codes: H04L 69/04 Protocols for data compression, e.g. ROHC
• CPC Class Codes: H04L 69/16 Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
• CPC Class Codes: H04L 69/161 Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: H04M 2215/32 Involving wireless systems
• CPC Class Codes: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365
• CPC Class Codes: H04W 4/24 Accounting or billing

Abstract

Wireless gateway nodes are enabled to support mobile node services, such as content based billing, when a data treatment server is present in the system. Using one of a defined Content Flow Label (CFL), an Application Program Interface (API), and a compression protocol header, content based billing is provided such as by exchanging content and byte count information with the data treatment server.

Claims

1. A node for providing services in a wireless network, the node comprising:

a transceiver, configured to transmit and receive data; and

processing hardware coupled to the transceiver, wherein the processing hardware is configured to;

receive at least one data packet from a mobile node using the transceiver, wherein the at least one data packet has a standard Internet Protocol (IP) header containing a treated payload;

create at least one encapsulated data packet by adding a compression protocol header to the standard IP header;

route the at least one encapsulated data packet to a data treatment server using the transceiver, wherein the data treatment server converts the treated payload to an untreated payload;

receive the at least one encapsulated data packet from the data treatment server using the transceiver, wherein the encapsulated data packet comprises the untreated payload, wherein the compression protocol header contains at least one field indicating a number of bytes in the treated payload;

remove the compression protocol header from the at least one encapsulated data packet;

route the at least one data packet to a data packet network using the transceiver; and

provide services based on the content of the untreated payload and the number of bytes in the treated payload.

2. The node of claim 1, wherein the services include at least one of content based billing, pre-paid wireless, or content based routing.

3. The node of claim 1, wherein the at least one data packet is encapsulated using Generic Routing Encapsulation (GRE).

4. The node of claim 1, wherein the wireless network comprises at least one of a Universal Mobile Telecommunications System (UMTS) and a General Packet Radio Service (GPRS) network.

5. The node of claim 1, wherein the data treatment server comprises at least one of a Traffic Protocol Optimizer (TPO) and a load balancer.

6. The node of claim 1, wherein the compression protocol header comprises at least one of:

a type field;

a reserved field;

a sub-type field defining the direction of data flow as either ingress or egress;

a version field;

a billing ID length field defining the length of a billing ID field;

a length field defining the number of bytes used in the billing ID fields and byte count fields;

at least one billing ID field defining an accounting ID used for network services that is based on the content of the data packet;

a byte count field for each billing ID field defining the number of bytes transmitted;

or

a padding field of variable length to set the compression protocol header length to an even multiple of four bytes.

7. A node for providing services in a wireless network, the node comprising:

a transceiver, configured to transmit and receive data; and

processing hardware coupled to the transceiver, wherein the processing hardware is configured to;

receive at least one data packet having a standard Internet Protocol (IP) header and an untreated payload using the transceiver;

inspect and classify the data packet untreated payload for content;

create at least one encapsulated data packet by adding a compression protocol header to the standard IP header;

route the at least one encapsulated data packet to a data treatment server using the transceiver, wherein the data treatment server converts the untreated payload to a treated payload;

receive the encapsulated data packet from the data treatment server that contains the treated payload, wherein the compression protocol header contains at least one field corresponding to the number of bytes in the treated payload;

remove the compression protocol header from the at least one encapsulated data packet;

transmit the at least one data packet with the treated payload to the mobile node using the transceiver; and

provide services based on the inspected and classified content of the untreated payload and the number of bytes in the treated payload.

8. The node of claim 7, wherein the services include at least one of content based billing, pre-paid wireless, or content based routing.

9. The node of claim 7, wherein the data packet is encapsulated using Generic Routing Encapsulation (GRE).

10. The node of claim 7, wherein the wireless network comprises at least one of a Universal Mobile Telecommunications System (UMTS) and a General Packet Radio Service (GPRS) network.

11. The node of claim 7, wherein the data treatment server comprises at least one of a Traffic Protocol Optimizer (TPO) and a load balancer.

12. The node of claim 7, wherein the compression protocol header comprises at least one of:

a type field;

a reserved field;

a sub-type field defining the direction of data flow as either ingress or egress;

a version field;

a billing ID length field defining the length of a billing ID field;

a length field defining the number of bytes used in the billing ID fields and byte count fields;

at least one billing ID field defining an accounting ID used for network services that is based on the content of the data packet;

a byte count field for each billing ID field defining the number of bytes transmitted;

or

a padding field of variable length to set the compression protocol header length to an even multiple of four bytes.

13. A non-transitory, computer accessible memory medium storing program instructions for providing data treatment services in a communications network, wherein the program instructions are executable by a processor to:

receive at least one data packet from a mobile node using the transceiver, wherein the at least one data packet has a standard Internet Protocol (IP) header containing a treated payload;

create at least one encapsulated data packet by adding a compression protocol header to the standard IP header;

route the at least one encapsulated data packet to a data treatment server using the transceiver, wherein the data treatment server converts the treated payload to an untreated payload;

receive the at least one encapsulated data packet from the data treatment server using the transceiver, wherein the encapsulated data packet comprises the untreated payload, wherein the compression protocol header contains at least one field indicating a number of bytes in the treated payload;

remove the compression protocol header from the at least one encapsulated data packet;

route the at least one data packet to a data packet network using the transceiver; and

provide services based on the content of the untreated payload and the number of bytes in the treated payload.

14. The non-transitory, computer accessible memory medium of claim 13, wherein the services include at least one of content based billing, pre-paid wireless, or content based routing.

15. The non-transitory, computer accessible memory medium of claim 13, wherein the at least one data packet is encapsulated using Generic Routing Encapsulation (GRE).

16. The non-transitory, computer accessible memory medium of claim 13, wherein the wireless network comprises at least one of a Universal Mobile Telecommunications System (UMTS) and a General Packet Radio Service (GPRS) network.

17. The non-transitory, computer accessible memory medium of claim 13, wherein the data treatment server comprises at least one of a Traffic Protocol Optimizer (TPO) and a load balancer.

18. The non-transitory, computer accessible memory medium of claim 13, wherein the compression protocol header comprises at least one of:

a type field;

a reserved field;

a sub-type field defining the direction of data flow as either ingress or egress;

a version field;

a billing ID length field defining the length of a billing ID field;

a length field defining the number of bytes used in the billing ID fields and byte count fields;

at least one billing ID field defining an accounting ID used for network services that is based on the content of the data packet;

a byte count field for each billing ID field defining the number of bytes transmitted;

or

a padding field of variable length to set the compression protocol header length to an even multiple of four bytes.

19. A non-transitory, computer accessible memory medium storing program instructions for providing data treatment services in a communications network, wherein the program instructions are executable by a processor to:

receive at least one data packet having a standard Internet Protocol (IP) header and an untreated payload using the transceiver;

inspect and classify the data packet untreated payload for content;

create at least one encapsulated data packet by adding a compression protocol header to the standard IP header;

route the at least one encapsulated data packet to a data treatment server using the transceiver, wherein the data treatment server converts the untreated payload to a treated payload;

receive the encapsulated data packet from the data treatment server that contains the treated payload, wherein the compression protocol header contains at least one field corresponding to the number of bytes in the treated payload;

remove the compression protocol header from the at least one encapsulated data packet;

transmit the at least one data packet with the treated payload to the mobile node using the transceiver; and

provide services based on the inspected and classified content of the untreated payload and the number of bytes in the treated payload.

20. The non-transitory, computer accessible memory medium of claim 19, wherein the services include at least one of content based billing, pre-paid wireless, or content based routing.

21. The non-transitory, computer accessible memory medium of claim 19, wherein the data packet is encapsulated using Generic Routing Encapsulation (GRE).

22. The non-transitory, computer accessible memory medium of claim 19, wherein the wireless network comprises at least one of a Universal Mobile Telecommunications System (UMTS) and a General Packet Radio Service (GPRS) network.

23. The non-transitory, computer accessible memory medium of claim 19, wherein the data treatment server comprises at least one of a Traffic Protocol Optimizer (TPO) and a load balancer.

24. The non-transitory, computer accessible memory medium of claim 19, wherein the compression protocol header comprises at least one of:

a type field;

a reserved field;

a sub-type field defining the direction of data flow as either ingress or egress;

a version field;

a billing ID length field defining the length of a billing ID field;

a length field defining the number of bytes used in the billing ID fields and byte count fields;

at least one billing ID field defining an accounting ID used for network services that is based on the content of the data packet;

a byte count field for each billing ID field defining the number of bytes transmitted;

or

a padding field of variable length to set the compression protocol header length to an even multiple of four bytes.