Communications system

• US 8,719,429 B2
• Filed: 04/13/2011
• Issued: 05/06/2014
• Est. Priority Date: 04/16/2010
• Status: Expired due to Fees

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Efthymiou, Costas, Kalogridis, Georgios
• Primary Examiner(s): SALAD, ABDULLAHI ELMI
• Application Number:
  US13/085,758
• Publication Number:
  US 20110258319A1
• Time in Patent Office: 1,119 Days
• Field of Search: 709227-228, 709249-250
• US Class Current: 709/228
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters
• CPC Class Codes: H04W 48/18 Selecting a network or a communication service

Abstract

The present invention relates to a method and apparatus for optimising a communications network (101) comprising a plurality of heterogeneous network resources. The method comprises receiving a communication request from a device (106a, 106b, 105, 107a, 107b) for setting up a communication through one of a plurality of heterogeneous network resources; selecting, in accordance with at least one communication characteristic, a network resource of the plurality of network resources through which the communication is to be set-up; and establishing the communication through the selected network resource.

Claims

1. A method for optimizing a communications network, said network being connected to a further communication network via a gateway and comprising a plurality of heterogeneous network resources and a network controller for routing communications passing through the gateway via one of said network resources, the method being implemented by the network controller and comprising:

receiving a communication request from a device for setting up a communication with the further network, said request identifying a preferred network resource among the plurality of network resources for setting up the communication, or determining by the network controller a preferred network resource for use by the device for setting up the communication;

identifying one or more of at least one communication characteristic of the requested communication and at least one communication characteristic associated with the plurality of network resources;

determining whether the preferred network resource is capable of setting up the requested communication based on said at least one communication characteristic, and if so, establishing the requested communication through the preferred network resource, and if not, the method further comprises;

identifying a physical location of the device requesting the communication;

determining whether the device has a short-range communication capability, and if so, identifying an alternative network resource having a same short-range communication capability and being sufficiently close to said physical location; and

establishing the requested communication via said alternative network resource using the short-range communication capability;

wherein, if it is determined that the device requesting the communication does not have a short-range communication capability, if an alternative network resource having a common short-range communication capability with the device is not identified, or if the alternative resource is not sufficiently close to the device requesting the communication, then the method further comprises;

identifying one or more existing communication sessions through the preferred network resource that are redirectable using a short-range communication, and redirecting such existing sessions via one or more alternative network resources having the short-range communication capability;

determining whether the preferred network resource is now capable of setting up the requested communication; and

establishing the requested communication via the preferred network resource.

2. The method according to claim 1,

wherein, if it is determined that the device does not have a short-range communication capability, if an alternative network resource having a common short-range communication capability with the device is not identified, or if the alternative resource is not sufficiently close to the device requesting the communication, then the method further comprises:

establishing the requested communication via the preferred network resource, the communication being based on the at least one communication characteristic.

3. The method according to claim 1, wherein setting up the communication through the alternative network resource involves providing the communication through a wired network resource to a further device, and a short range wireless link between the further device and the device.

4. The method according to claim 1, wherein the at least one communication characteristic comprises a communication characteristic associated with the device.

5. The method according to claim 4, wherein the information relating to the communication characteristic associated with the device includes an identification of the type of communications session to be set up.

6. The method according to claim 5, wherein the information identifying the type of communication session to be set up includes information relating to bandwidth requirements of the type of communications session.

7. The method according to claim 6, wherein the information identifying the type of communication session to be set up includes information relating to minimum delay requirements of the type of communications session.

8. The method according to claim 1, wherein the at least one communication characteristic comprises a bandwidth usage of at least one of the plurality of network resources.

9. The method according to claim 1, wherein said determining whether the preferred network resource is capable of setting up the requested communication based on said at least one communication characteristic is based on at least one of an available bandwidth amount associated with the preferred network resource and information regarding one or more sessions currently in progress that are associated with the preferred network resource.

14. A computer-usable, non-transitory storage memory carrying computer readable code for controlling a suitable computer, that when executed by the computer, causes the computer to carry out the method of claim 1.

10. An apparatus for optimizing a communications network, said network being connected to a further communication network via a gateway and comprising a plurality of heterogeneous network resources and a network controller for routing communications passing through the gateway via one of said network resources, the apparatus comprising:

an input arranged to receive a communication request from a device for setting up a communication with the further network, said request identifying a preferred network resource among the plurality of network resources for setting up the communication, or the apparatus being configured to determine a preferred network resource for use by the device for setting up the communication; and

a network controller having a processor arranged to;

identify one or more of at least one communication characteristic of the requested communication and at least one communication characteristic associated with the plurality of network resources;

determine whether the preferred network resource is capable of setting up the requested communication based on said at least one communication characteristic, and if so, establish the requested communication through the preferred network resource, and if not, the processor is further arranged to;

identify a physical location of the device requesting the communication;

determine whether the device has a short-range communication capability, and if so, identify an alternative network resource having a same short-range communication capability and being sufficiently close to the physical location; and

establish the requested communication via said alternative network resource using the short-range communication capability,

wherein, if it is determined by the network controller that the device requesting the communication does not have a short-range communication capability, if an alternative network resource having a common short-range communication capability with the device is not identified, or if the alternative resource is not sufficiently close to the device requesting the communication, then the processor is further arranged to;

identify one or more existing communication sessions through the preferred network resource that are redirectable using a short-range communication, and redirect such existing sessions via one or more alternative network resources having the short-range communication capability;

determine whether the preferred network resource is now capable of setting up the requested communication; and

establish the requested communication via the preferred network resource.

11. The apparatus according to claim 10,

wherein, if it is determined by the network controller that the device requesting the communication does not have a short-range communication capability, if an alternative network resource having a common short-range communication capability with the device is not identified, or if the alternative resource is not sufficiently close to the device requesting the communication, then the processor is further arranged to:

establish the requested communication via the preferred network resource, the communication being based on the at least one communication characteristic.

12. The apparatus according to claim 10, wherein the processor is arranged to set up the communication through the alternative network resource by providing the communication through a wired network resource to a further device, and a short range wireless link between the further device and the device.

13. The apparatus according to any of claim 10, 11, or 12,

wherein the at least one communication characteristic comprises a communication characteristic associated with the device including one or more of:

information relating to bandwidth requirements of the type of communications session to be set-up; and

information relating to minimum delay requirements of the type of communications session to be set-up.