ACTIVATION OF MULTIPLE BEARER SERVICES IN A LONG TERM EVOLUTION SYSTEM

• US 20080013553A1
• Filed: 05/31/2007
• Published: 01/17/2008
• Est. Priority Date: 07/12/2006
• Status: Abandoned Application

• Current Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Original Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Inventors: Shaheen, Kamel M.
• Application Number:
  US11/755,850
• Publication Number:
  US 20080013553A1
• Time in Patent Office: Days
• US Class Current: 370/401
• CPC Class Codes: H04W 28/16 Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
• CPC Class Codes: H04W 76/12 Setup of transport tunnels
• CPC Class Codes: H04W 76/15 Setup of multiple wireless link connections
• CPC Class Codes: H04W 8/02 Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks

Abstract

The present invention is related to a method of activating multiple bearer services in a long term evolution (LTE) wireless communication system including multiple bearers. At least one of the multiple bearers is activated during initial attach procedures which combine an attach procedure with activate packet data protocol (PDP) context activation procedures. In one embodiment, LTE attach procedures are implemented for multi-bearer services activation that establishes an LTE direct general packet radio service (GPRS) tunneling protocol (GTP) tunnel or normal GTP two-tunnels operation. In another embodiment, the initial attach procedures are used to activate a default PDP context to be followed by modified PDP context activation procedures for multi-bearer services activation. These procedures can be used to establish a modified LTE direct GTP tunnel or a normal GTP two-tunnels operation.

Claims

1. A method of establishing a direct tunnel for a wireless transmit/receive unit (WTRU) in a wireless communication system including an evolved Node-B (eNodeB), a mobility management entity (MME) and at least one access gateway (AGW), the method comprising:

(a) the WTRU sending a long term evolution (LTE) attach request message to the MME via the eNodeB, the LTE attach request message including a list of services requiring activation, a list of network service access point identifiers (NSAPIs) and quality of service (QoS) profiles associated with the list of services;

(b) establishing a packet data protocol (PDP) context between the eNodeB and the AGW for each service identified by the list of services; and

(c) establishing a radio access bearer between the WTRU and the eNodeB for each service identified by the list of services using the associated NSAPIs.

2. The method of claim 1 further comprising:

(d) the MME establishing tunneling required between the AGW and the eNodeB; and

(e) the MME confirming the allocation of bearers and their associated NSAPIs.

3. The method of claim 2 wherein the NAPSI list is used to map specific services to specific end points at the WTRU.

4. The method of claim 2 further comprising:

the MME forwarding the NSAPI list to the AGW to identify the user service end points.

5. The method of claim 2 further comprising:

the MME validating the service list against a subscriber profile in a home subscriber server (HSS) and authorizing the resources required to support the services required.

6. A method of activating multiple bearer services in a wireless communication system including a wireless transmit/receive unit (WTRU), an evolved Node-B (eNodeB), a mobility management entity (MME) and at least one access gateway (AGW), wherein a single default packet data protocol (PDP) context is established between the eNodeB and the AGW, the method comprising:

(a) the WTRU sending a modify PDP context request message to the MME via the eNodeB, the modify PDP context request message including a list of services requiring activation and a list of network service access point identifiers (NSAPIs);

(b) establishing an additional PDP context between the eNodeB and the AGW for each service identified by the list of services; and

(c) establishing a plurality of radio access bearers between the WTRU and the eNodeB for each service identified by the list of services using the associated NSAPIs.

7. The method of claim 6 further comprising:

(d) the MME modifying tunneling established between the AGW and the eNodeB; and

(e) the MME confirming the allocation of bearers and their associated NSAPIs.

8. The method of claim 7 wherein the NAPSI list is used to map specific services to specific end points at the WTRU.

9. The method of claim 7 further comprising:

the MME forwarding the NSAPI list to the AGW to identify the user service end points.

10. The method of claim 7 further comprising:

the MME validating the service list against a subscriber profile in a home subscriber server (HSS) and authorizing the resources required to support the services required.

11. In a long term evolution (LTE) wireless communication system using multiple radio bearers, a method of activating multiple bearer services, the method comprising:

activating a plurality of the multiple bearers during a primary packet data protocol (PDP) context activation, wherein the PDP context activation is performed while packet switched (PS) attach procedures are initiated.

12. A wireless communication system comprising:

a mobility management entity (MME);

an evolved Node-B (eNodeB);

at least one access gateway (AGW); and

a wireless transmit/receive unit (WTRU) configured to send a long term evolution (LTE) attach request message to the MME via the eNodeB, the LTE attach request message including a list of services requiring activation, a list of network service access point identifiers (NSAPIs) and quality of service (QoS) profiles associated with the list of services, establish a packet data protocol (PDP) context between the eNodeB and the AGW for each service identified by the list of services, and establish a plurality of radio access bearers between the WTRU and the eNodeB for each service identified by the list of services using the associated NSAPIs.

13. The system of claim 12 wherein the MME is configured to establish tunneling required between the AGW and the eNodeB, and confirm the allocation of bearers and their associated NSAPIs.

14. The system of claim 13 wherein the NAPSI list is used to map specific services to specific end points at the WTRU.

15. The system of claim 13 wherein the MME is further configured to forward the NSAPI list to the AGW to identify the user service end points.

16. The system of claim 13 wherein the MME is further configured to validate the service list against a subscriber profile in a home subscriber server (HSS) and authorize the resources required to support the services required.

17. A wireless communication system comprising:

a mobility management entity (MME);

an evolved Node-B (eNodeB);

an access gateway (AGW), wherein a single default packet data protocol (PDP) context is established between the eNodeB and the AGW; and

a wireless transmit/receive unit (WTRU) configured to send a modify packet data protocol (PDP) context request message to the MME via the eNodeB, the modify PDP context request message including a list of services requiring activation and a list of network service access point identifiers (NSAPIs), establish an additional PDP context between the eNodeB and the AGW for each service identified by the list of services, and establish a plurality of radio access bearers between the WTRU and the eNodeB for each service identified by the list of services using the associated NSAPIs.

18. The system of claim 17 wherein the MME is configured to modify tunneling established between the AGW and the eNodeB, and confirm the allocation of bearers and their associated NSAPIs.

19. The system of claim 18 wherein the NAPSI list is used to map specific services to specific end points at the WTRU.

20. The system of claim 18 wherein the MME is further configured to forward the NSAPI list to the AGW to identify the user service end points.

21. The system of claim 18 wherein the MME is further configured to validate the service list against a subscriber profile in a home subscriber server (HSS) and authorize the resources required to support the services required.

22. A method of establishing a direct tunnel for a wireless transmit/receive unit (WTRU) in a wireless communication system including a radio access network (RAN), a serving general packet radio service (GPRS) support node (SGSN) and at least one gateway GPRS support node (GGSN), the method comprising:

(a) the WTRU sending an attach request message to the SGSN via the RAN, the attach request message including a list of services requiring activation, a list of network service access point identifiers (NSAPIs) and quality of service (QoS) profiles associated with the list of services;

(b) establishing a packet data protocol (PDP) context between the RAN and the GGSN for each service identified by the list of services; and

(c) establishing a radio access bearer between the WTRU and the RAN for each service identified by the list of services using the associated NSAPIs.

23. The method of claim 22 further comprising:

(d) the SGSN establishing tunneling required between the GGSN and the RAN; and

(e) the SGSN confirming the allocation of bearers and their associated NSAPIs.

24. The method of claim 22 wherein the NAPSI list is used to map specific services to specific end points at the WTRU.

25. The method of claim 22 further comprising:

the SGSN forwarding the NSAPI list to the GGSN to identify the user service end points.

26. The method of claim 22 further comprising:

the SGSN validating the service list against a subscriber profile in a home subscriber server (HSS) and authorizing the resources required to support the services required.

27. A method of activating multiple bearer services in a wireless communication system including a wireless transmit/receive unit (WTRU), a radio access network (RAN), a serving general packet radio service (GPRS) support node (SGSN) and at least one gateway GPRS support node (GGSN), wherein a single default packet data protocol (PDP) context is established between the RAN and the GGSN, the method comprising:

(a) the WTRU sending a modify PDP context request message to the SGSN via the RAN, the modify PDP context request message including a list of services requiring activation and a list of network service access point identifiers (NSAPIs);

(b) establishing an additional PDP context between the RAN and the GGSN for each service identified by the list of services; and

(c) establishing a plurality of radio access bearers between the WTRU and the RAN for each service identified by the list of services using the associated NSAPIs.

28. The method of claim 27 further comprising:

(d) the SGSN modifying tunneling established between the GGSN and the RAN; and

(e) the SGSN confirming the allocation of bearers and their associated NSAPIs.

29. The method of claim 27 wherein the NAPSI list is used to map specific services to specific end points at the WTRU.

30. The method of claim 27 further comprising:

the SGSN forwarding the NSAPI list to the GGSN to identify the user service end points.

31. The method of claim 27 further comprising:

the SGSN validating the service list against a subscriber profile in a home subscriber server (HSS) and authorizing the resources required to support the services required.

32. A method of establishing a dual-tunnel for a wireless transmit/receive unit (WTRU) in a wireless communication system including a radio access network (RAN), a serving general packet radio service (GPRS) support node (SGSN) and at least one gateway GPRS support node (GGSN), the method comprising:

(a) the WTRU sending an attach request message to the SGSN via the RAN, the attach request message including a list of services requiring activation, a list of network service access point identifiers (NSAPIs) and quality of service (QoS) profiles associated with the list of services;

(b) establishing a packet data protocol (PDP) context between the SGSN and the GGSN for each service identified by the list of services;

(c) establishing a packet data tunnel between the SGSN and the RAN for each service identified by the list of services; and

(d) establishing a radio access bearer between the WTRU and the RAN for each service identified by the list of services using the associated NSAPIs.

33. The method of claim 32 further comprising:

(e) the SGSN establishing general packet radio service (GPRS) tunneling protocol (GTP) tunneling required between the GGSN and the SGSN;

(f) the SGSN establishing tunneling required between the RAN and the SGSN; and

(g) the SGSN confirming the allocation of bearers and their associated NSAPIs.

34. A method of activating multiple bearer services in a wireless communication system including a wireless transmit/receive unit (WTRU), a radio access network (RAN), a serving general packet radio service (GPRS) support node (SGSN) and at least one gateway GPRS support node (GGSN), wherein a single default packet data protocol (PDP) context is established through an attach procedure between the SGSN and the GGSN, the method comprising:

(a) the WTRU sending a modify PDP context request message to the SGSN via the RAN, the modify PDP context request message including a list of services requiring activation and a list of network service access point identifiers (NSAPIs);

(b) establishing an additional PDP context between the SGSN and the GGSN for each service identified by the list of services;

(c) establishing an additional tunnel between the RAN and the SGSN for each service identified by the list of services; and

(d) establishing a plurality of radio access bearers between the WTRU and the RAN for each service identified by the list of services using the associated NSAPIs.

35. The method of claim 34 further comprising:

(e) the SGSN establishing tunneling required between the GGSN and the SGSN;

(f) the SGSN establishing tunneling required between the RAN and the SGSN; and

(g) the SGSN confirming the allocation of bearers and their associated NSAPIs.