Communication path allocating entity and method

• US 8,265,015 B2
• Filed: 06/07/2005
• Issued: 09/11/2012
• Est. Priority Date: 06/07/2005
• Status: Active Grant

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Keller, Ralf, Witzel, Andreas
• Primary Examiner(s): Sheikh, Ayaz
• Assistant Examiner(s): Moutaouakil, Mounir
• Application Number:
  US11/916,789
• Publication Number:
  US 20080198764A1
• Time in Patent Office: 2,653 Days
• Field of Search: 370/230, 370/252, 370/331, 370/329, 370/474, 370/468, 709224-229, 455/67.13, 455/452.2
• US Class Current: 370/329
• CPC Class Codes: H04L 12/5692 Selection among different networks
• CPC Class Codes: H04L 47/15 in relation to multipoint traffic arrangements for broadcast or multicast in data networks H04L12/18
• CPC Class Codes: H04L 47/70 Admission control; Resource allocation
• CPC Class Codes: H04L 47/765 triggered by the end-points
• CPC Class Codes: H04L 65/1069 Session establishment or de-establishment
• CPC Class Codes: H04L 65/1083 In-session procedures
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/80 Responding to QoS
• CPC Class Codes: H04L 67/14 Session management for real-time applications in data packet communications networks H04L65/1066
• CPC Class Codes: H04L 67/303 Terminal profiles
• CPC Class Codes: H04L 67/61 taking into account QoS or priority requirements
• CPC Class Codes: H04L 67/63 Routing a service request depending on the request content or context
• CPC Class Codes: H04L 69/18 Multiprotocol handlers, e.g. single devices capable of handling multiple protocols
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

A communication path allocating entity and method are described. The entity (10) comprises a receiver (11) for receiving session requests for requesting one or both of an establishment of a new communication session and a change in existing communication session between a network and one or more terminals (20), and a processor (12) for processing the session requests and for allocating one or more communication paths (21, 23, 25) to each of the communication sessions. A session database (28) is provided for keeping record of the allocated communication path and their associated sessions.

Claims

1. A dedicated communication path allocating entity for allocating communication paths in communication sessions between a network and a plurality of terminals, each of said terminals being connectable to said network via at least one of said communication paths, said dedicated communication path allocating entity comprising:

a receiver for receiving session requests for requesting one or both of an establishment of a new communication session and a change in an existing communication session between said network and said terminals,

a processor for processing said session requests and for independently allocating N downlink communication paths from said network to at least one of said terminals and M uplink communication paths from said at least one of said terminals to said network for each session, where N≧

0, M≧

0 and M+N≧

1, where said processor comprises logic for

keeping a record of allocated communication paths and their associated sessions in a session data base, and

using information from said session data base for the allocating; and

where said session requests are not related to handovers based on terminal mobility, wherein once the processor has processed said session requests and completed allocating the communication paths then other system entities are responsible for performing actions that relate to terminal mobility such as handovers; and

said processor allocating said one or more communication paths based on information that comprises;

preference information,

terminal capability information,

resource availability information, and

network load information.

2. The dedicated communication path allocating entity according to claim 1, wherein said communication paths are provided over at least two different sub-networks arranged for accessing said terminals, said processor independently allocating communication paths in said sub-networks for a communication session.

3. The dedicated communication path allocating entity according to claim 2, wherein said terminals are wireless terminals and said sub-networks comprise a circuit switched wireless access network and a packet switched wireless access network.

4. The dedicated communication path allocating entity according to claim 1, being provided in an Internet Protocol Multimedia Subsystem.

5. The dedicated communication path allocating entity according to claim 1, said processor extracting at least a part of said information from said session requests.

6. The dedicated communication path allocating entity according to claim 1, wherein said preference information comprises one or both of user preference information set by a user of one of said terminals and network operator preference information set by an operator of said network.

7. The dedicated communication path allocating entity according to claim 1, wherein said processor determining at least a part of said resource availability information from said session data base.

8. The dedicated communication path allocating entity according to claim 1, wherein said network load information comprises sub-network load information respectively associated with sub-networks of said network, said processor deciding on whether to allocate a communication path in a particular sub-network, the sub-network load information of said particular sub-network being taken into account.

9. The dedicated communication path allocating entity according to claim 1, wherein said processor comprising logic for one or more of:

setting up new communication paths based on said session requests,

re-allocating existing communication paths based on said session requests, and

de-allocating existing communication paths based on said session requests.

10. A dedicated communication path allocating method for allocating communication paths in communication sessions between a network and a plurality of terminals, each of said plurality of terminals being connectable to said network via at least one of said communication paths, said dedicated communication path allocating method comprising:

receiving session requests for requesting one or both of an establishment of a new communication session and a change in an existing communication session between said network and said terminals,

processing said session requests and independently allocating N downlink communication paths from said network to at least one of said terminals and M uplink communication paths from said at least one of said terminals to said network for each session, where N≧

0, M≧

0 and M+N≧

1; and

keeping a record of allocated communication paths and their associated sessions in a session data base, and using information from said session data base for the allocating; and

where said session requests are not related to handovers based on terminal mobility, wherein after processing said session requests and completing the allocating of the communication paths then other system entities are responsible for performing actions that relate to terminal mobility such as handovers; and

said allocating of said one or more communication paths is based on information that comprises;

preference information,

terminal capability information,

resource availability information, and

network load information.

11. The dedicated communication path allocating method according to claim 10, wherein said communication paths are provided over at least two different sub-networks arranged for accessing said terminals, and said allocating step independently allocates communication paths in said sub-networks for a communication session.

12. The dedicated communication path allocating method according to claim 11, wherein said terminals are wireless terminals and said sub-networks comprise a circuit switched wireless access network and a packet switched wireless access network.

13. The dedicated communication path allocating method according to claim 10, being applied in an Internet Protocol Multimedia Subsystem.

14. The dedicated communication path allocating method according to claim 10, comprising extracting at least a part of said information from said session requests.

15. The dedicated communication path allocating method according to claim 10, wherein said preference information comprises one or both of user preference information set by a user of one of said terminals and network operator preference information set by an operator of said network.

16. The dedicated communication path allocating method according to claim 10, comprising determining at least a part of said resource availability information from said session data base.

17. The dedicated communication path allocating method according to claim 10, wherein said network load information comprises sub-network load information respectively associated with sub-networks of said network, and when deciding on whether to allocate a communication path in a particular sub-network, the sub-network load information of said particular sub-network is taken into account.

18. The dedicated communication path allocating method according to claim 10, further comprising one or more of:

setting up new communication paths based on said session requests,

re-allocating existing communication paths based on said session requests, and

de-allocating existing communication paths based on said session requests.

19. A communication path allocating entity for allocating a communication path for a communication session between a network and a terminal, said communication path allocating entity comprising:

a receiver for receiving a session request for requesting one of an establishment of a new communication session and a change in an existing communication session between said network and said terminal,

a processor for processing said session request and for independently allocating N downlink communication paths from said network to said terminal and M uplink communication paths from said terminal to said network for each session, where N≧

0, M≧

0 and M+N≧

1,

where said processor comprises logic for;

keeping a record of allocated communication paths and their associated communication sessions between the network and a plurality of terminals in a session data base, and

using information from said session data base for the allocating of the N downlink communication paths from said network to said terminal and the M uplink communication paths from said terminal to said network, and

where said session request is not related to handovers based on terminal mobility, wherein once the processor has processed said session request and completed allocating the communication paths then other system entities are responsible for performing actions that relate to terminal mobility such as handovers; and

said processor allocating said one or more communication paths based on information that comprises;

preference information,

terminal capability information,

resource availability information, and

network load information.

20. A communication path allocating method for allocating a communication path for a communication session between a network and a terminal, said communication path allocating method comprising the steps of:

receiving a session request which requests one of an establishment of a new communication session and a change in an existing communication session between said network and said terminal,

processing said session request and independently allocating N downlink communication paths from said network to said terminal and M uplink communication paths from said terminal to said network for each session, where N≧

0, M≧

0 and M+N≧

1,

keeping a record of allocated communication paths and their associated communication sessions between the network and a plurality of terminals in a session data base, and

using information from said session data base for the allocating of the N downlink communication paths from said network to said terminal and the M uplink communication paths from said terminal to said network, and

where said session request is not related to handovers based on terminal mobility, wherein after processing said session request and completing the allocating of the communication paths then other system entities are responsible for performing actions that relate to terminal mobility such as handovers; and

said allocating said communication path is further based on information that comprises;

preference information,

terminal capability information,

resource availability information, and

network load information.

21. A communication path allocating entity for allocating a communication path for a communication session between a network and a terminal, said communication path allocating entity comprising:

a receiver for receiving a session request for requesting one of an establishment of a new communication session and a change in an existing communication session between said network and said terminal,

a processor for processing said session request and for independently allocating N downlink communication paths from said network to said terminal and M uplink communication paths from said terminal to said network for each session, where N≧

0, M≧

0 and M+N≧

1,

where said processor comprises logic for;

keeping a record of allocated communication paths and their associated communication sessions between the network and a plurality of terminals in a session data base, and

using information from said session data base for the allocating of the N downlink communication paths from said network to said terminal and the M uplink communication paths from said terminal to said network, and

where said processor allocating said communication path is further based on information that comprises;

preference information,

terminal capability information,

resource availability information, and

network load information.

22. The communication path allocating entity according to claim 21, where said session request is not related to handovers based on terminal mobility, wherein once the processor has processed said session request and completed allocating the communication paths then other system entities are responsible for performing actions that relate to terminal mobility such as handovers.

23. A communication path allocating method for allocating a communication path for a communication session between a network and a terminal, said communication path allocating method comprising the steps of:

receiving a session request which requests one of an establishment of a new communication session and a change in an existing communication session between said network and said terminal,

processing said session request and independently allocating N downlink communication paths from said network to said terminal and M uplink communication paths from said terminal to said network for each session, where N≧

0, M≧

0 and M+N≧

1,

keeping a record of allocated communication paths and their associated communication sessions between the network and a plurality of terminals in a session data base, and

using information from said session data base for the allocating of the N downlink communication paths from said network to said terminal and the M uplink communication paths from said terminal to said network, and

where said allocating said communication path is further based on information that comprises;

preference information,

terminal capability information,

resource availability information, and

network load information.

24. The communication path allocating method according to claim 23, where said session request is not related to handovers based on terminal mobility, wherein after processing said session request and completing the allocating of the communication paths then other system entities are responsible for performing actions that relate to terminal mobility such as handovers.