Method and system for communicating data between a mobile communications architecture and a packet switched architecture

• US 20010033563A1
• Filed: 02/16/2001
• Published: 10/25/2001
• Est. Priority Date: 02/16/2000
• Status: Active Grant

• Current Assignee: Nokia Technologies Oy (Nokia Corporation)
• Original Assignee: Nokia Corporation
• Inventors: Hamiti, Shkumbin, Kularatna, Shavantha, Niemela, Tuomas, Mononen, Risto
• Granted Patent: US 7,307,968 B2
• Time in Patent Office: Days
• US Class Current: 370/349
• CPC Class Codes: H04L 12/4633 Interconnection of networks using encapsulation techniques, e.g. tunneling
• 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 80/00 Wireless network protocols or protocol adaptations to wireless operation
• CPC Class Codes: H04W 92/14 between access point controllers and backbone network device

Abstract

The method and system provides a data packet encapsulated with protocol data according to an embodiment of the invention. A data packet for communication may be associated with a TLLI and a NSAPI identifying a communications path between a BSS and a SGSN. The method and system provides a BVC associated with the BSS and the SGSN and a NSE that provides communication service to the BVC over NS-VC. The BVC, NSE and NS-VC may be associated with the TLLI and NSAPI. The encapsulated protocol data comprises UDP and IP. UDP provides UDP ports associated with NS-VC. The UDP ports identified as data designated as either real time or non-real time services. IP provides an IP address identifying the NSE providing service to the BVC. The data packet encapsulated with UDP and IP provides for more efficient, flexible and reliable communications between a BSS and a SGSN.

Claims

1. A method of communicating data between a Base Station System (BSS) and a Serving GPRS Support Node (SGSN), the method of communicating comprising the steps of:

providing protocol data and associated functions, including encapsulating a data packet with a User Datagram Protocol (UDP) and a Internet Protocol (IP), wherein the UDP comprises a UDP port associated with a Network Service Virtual Connection (NS-VC) and, the IP provides an IP address associated with a Network Service Entity (NSE); and

transmitting the data packet provided with the protocol data.

2. The method of communicating as recited in

claim 1

, wherein the UDP port is identified as either for real-time or non-real time services.

3. The method of communicating as recited in

claim 1

, wherein the data packet is associated with a Temporary Logical Link Identifier (TLLI) and a Network Service Access Point Identifier (NSAPI).

4. The method of communicating as recited in

claim 3

further comprising the step of:

providing a BSSGP Virtual Connection Identifier (BVCI), a Network Service Entity Identifier (NSEI) and a Link Select Parameter (LSP), the BVCI, NSEI and LSP associated with the TLLI and NSAPI, the BVCI identifying a BVC, the NSEI identifying the NSE, the NS-VC identified by the BVCI and the NSEI, the LSP identifying a Network Service Virtual Link (NS-VL) associated with the NS-VC.

5. The method of communicating data as recited in

claim 1

, wherein the data packet comprises a Sub-network Dependent Convergence Protocol (SNDCP).

6. The method of communicating data as recited in

claim 5

, wherein the data packet further comprise a Logical Link Control (LLC).

7. The method of communicating data as recited in

claim 6

, wherein the protocol data and associated functions further comprise:

a Base Station System GPRS Protocol (BSSGP);

a network service control;

a data link layer; and

a physical link layer.

8. The method of communicating data as recited in

claim 7

further comprising the step of receiving the data packet provided with the protocol data.

9. The method of communicating data as recited in

claim 8

further comprising the step of removing the protocol data and associated functions and the LLC and the SNDCP.

10. The method of communicating data as recited in

claim 1

, wherein the protocol data and associated functions further comprise:

a Sub-network Dependent Convergence Protocol (SNDCP)

a Logical Link Control (LLC);

a Base Station System GPRS Protocol (BSSGP);

a network service control;

a data link layer; and

a physical link layer.

11. The method of communicating data as recited in

claim 10

, wherein the SNDCP provides RTP/UDP/IP header compression and stripping.

12. The method of communicating data as recited in

claim 10

further comprising the step of receiving the data packet provided with the protocol data.

13. The method of communicating data as recited in

claim 12

further comprising the step of:

removing the physical link layer, the data link layer, the IP, the UDP, the network service control and the BSSGP.

14. A system for communicating data between a mobile communications architecture and a GPRS architecture, the system comprising:

a Base Station System (BSS) having a first BSSGP Virtual Connection (BVC) and a first at least one Network Service Virtual Connection (NS-VC) associated with the first BVC;

a Serving GPRS Support Node (SGSN) coupled to the BSS, the SGSN having a second BVC, the SGSN having a second at least one NS-VC associated with the second BVC, wherein the BSS transmits data between the first BVC and the second BVC over the first at least one NS-VC, the data encapsulated with protocol data and associated functions, the protocol data and associated functions including a UDP and IP, the UDP provides a UDP port associated with a NS-VC of the first and second at least one NS-VC, the IP provides an IP address identifying a Network Service Entity (NSE) associated with the first and second BVC, the SGSN receives the data over the second at least one NS-VC.

15. The system as recited in

claim 14

, wherein the UDP port associated with the NS-VC further comprises the UDP ports identified as either for real time or non-real time services.

16. The system as recited in

claim 14

, where the data comprises information encapsulated with a Sub-network Dependent Convergence Protocol (SNDCP) and a Logical Link Control (LLC).

17. The system as recited in

claim 14

, wherein the protocol data and associated functions further comprises;

a Base Station System GPRS Protocol (BSSGP);

a network service control;

a data link layer; and

a physical link layer.

18. The system as recited in

claim 17

, wherein the SGSN upon receiving the data encapsulated with protocol data and associated functions removes the encapsulated protocol data and associated functions and the SNDCP and the LLC.

19. A system for communicating data between a mobile communications architecture and a GPRS architecture, the system comprising:

a Base Station System (BSS) having a first BSSGP Virtual Connection (BVC) and a first at least one Network Service Virtual Connection (NS-VC) associated with the BVC;

a Serving GPRS Support Node (SGSN) coupled to the BSS, the SGSN having a second BVC, the SGSN having a second at least one NS-VC associated with the second BVC, wherein the SGSN transmits data between the first BVC and the second BVC over the second at least one NS-VC, the data encapsulated with protocol data and associated functions, the protocol data and associated functions include a UDP and IP, the UDP provides a UDP port associated with a NS-VC of the first and second at least one NS-VC, the IP provides an IP address identifying a Network Service Entity (NSE) associated with the first and second BVC, and the BSS receives the data over the first NS-VC.

20. The system as recited in

claim 19

, wherein the UDP port associated with the NS-VC further comprises the UDP ports identified as either for real time or non-real time services.

21. The system as recited in

claim 19

, wherein the protocol data and associated functions further comprises:

a Sub-network Dependent Convergence Protocol (SNDCP);

a Logical Link Control (LLC);

a Base Station System GPRS Protocol (BSSGP);

a network service control;

a data link layer; and

a physical link layer.

22. The system as recited in

claim 21

, wherein the SNDCP provides RTP/UDP/IP header compression and stripping.

23. The system as recited in

claim 21

, wherein the BSS upon receiving the data encapsulated with protocol data and associated functions removes the physical link layer, the data link layer, the IP, the UDP, the network service control and the BSSGP.