Bearer path resource matching in a wireless communication network

• US 7,864,752 B1
• Filed: 08/09/2006
• Issued: 01/04/2011
• Est. Priority Date: 08/09/2006
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Nortel Networks Limited (Nortel Networks Corporation)
• Inventors: Bennett, Reed, Stephens, Gary B., Chotiner, William
• Primary Examiner(s): Harper, Vincent P
• Assistant Examiner(s): Irace, Michael
• Application Number:
  US11/501,339
• Time in Patent Office: 1,609 Days
• Field of Search: 370/352, 370/353, 370/401
• US Class Current: 370/352
• CPC Class Codes: H04W 76/12 Setup of transport tunnels
• CPC Class Codes: H04W 88/181 Transcoding devices; Rate adaptation devices

Abstract

Call setup in a wireless communication network that includes a circuit fabric and a packet fabric. The originating MSCe receives an origination message including a call termination identifier, and a predictive bearer path matching mode is determined. When the originating MSCe is in a first predictive bearer path matching mode, the originating MSC generates a bearer resource preference list based upon the termination identifier. The bearer resource preference list includes a predetermined priority order of a plurality of bearer path resource identifiers including at least one of a packet bearer resource identifier and a circuit bearer resource identifier. When the originating MSCe is in a second predictive bearer path matching mode, the MSCe generates a bearer resource preference list to indicate whether the originating MSCe couples to a packet bearer resource or a trunk bearer resource. The originating MSCe sends, in response to the origination message, the bearer resource preference list to an originating base station controller (BSC). The originating BSC matches an available bearer path resource of the originating BSC based upon the bearer resource preference list.

Claims

1. A method for predictive bearer path resource matching for call setup in an originating mobile switching center emulation (MSCe) of a wireless communication network including a circuit fabric and packet fabric, the method comprising:

receiving an origination message including a call termination identifier and a calling party profile including call setup capabilities of a calling party from an originating base station controller (BSC);

when in a first predictive bearer path matching mode, generating a bearer resource preference list based upon the call termination identifier, the bearer resource preference list includes a predetermined priority order of a plurality of bearer path resource identifiers including at least one of a packet bearer resource identifier and a trunk bearer resource identifier;

when in a second predictive bearer path matching mode, generating the bearer resource preference list with a bearer path resource identifier to indicate whether the originating MSCe couples to a packet bearer resource or a trunk bearer resource; and

sending, in response to the origination message, the bearer resource preference list to the originating BSC for matching with an available bearer path resource.

2. The method of claim 1 further comprising:

receiving, from the originating BSC, the matched bearer path resource identifier from the originating BSC; and

selecting the matched bearer path resource based upon the matched bearer path resource identifier.

3. The method of claim 1 wherein the origination message further includes a calling party profile including call setup capabilities, and wherein generating the bearer resource preference list further comprises:

when the bearer resource preference list includes a packet bearer resource identifier, accessing the calling party profile to determine whether the call termination identifier indicates transcoder free operation (TrFO) packet operation; and

when the calling party profile indicates a TrFO packet operation capability, including with the bearer resource preference list a TrFO packet bearer resource identifier.

4. The method of claim 3 wherein the calling party profile indicates TrFO packet operation by an enhanced variable rate codec (EVRC) indication.

5. The method of claim 1 wherein the origination message is a Session Initiation Protocol (SIP) INVITE message.

6. The method of claim 5 wherein the call termination identifier is at least one of a SIP Uniform Resource Identifier (URI) and a called number.

7. The method of claim 1 wherein the first predictive bearer path matching mode comprises a concurrent trunk matching mode and the second predictive bearer path matching mode comprises a non-concurrent trunk matching mode.

8. A method for predictive bearer path resource matching by an originating mobile switching center emulation (MSCe) in a wireless communication network including a circuit fabric and packet fabric, the method comprising:

receiving an origination message including a call termination identifier from an originating base station controller (BSC);

generating a bearer resource preference list based upon the call termination identifier, the bearer resource preference list includes a predetermined priority preference order of a plurality of bearer resource identifiers, the plurality of bearer resource identifiers including at least a packet bearer resource identifier and a trunk bearer resource identifier;

sending, in response to the origination message, the bearer resource preference list to the originating BSC, for matching an available bearer path resource;

receiving, from the originating BSC, the matched bearer path resource identifier; and

selecting the bearer path resource based upon the matched bearer path resource identifier.

9. The method of claim 8 further comprising:

sending the selected bearer path resource identifier through to a terminating MSCe based upon the selected bearer resource, the terminating MSCe, based upon the selected bearer path resource, identifies an appropriate priority resource list to a terminating BSC for selecting a terminating bearer path resource.

10. The method of claim 8 wherein the origination message further includes a calling party profile including call setup capabilities, and wherein generating the bearer resource preference list further comprises:

when the bearer resource preference list includes a packet bearer resource identifier, accessing the calling party profile to determine whether the call termination identifier indicates transcoder free operation (TrFO) packet operation; and

when the call termination identifier indicates TrFO packet operation, including with the bearer resource preference list a TrFO packet bearer resource identifier.

11. The method of claim 10 wherein the call termination identifier indicates TrFO packet operation by an enhanced variable rate codec (EVRC) indication.

12. The method of claim 8 wherein the origination message is a Session Initiation Protocol (SIP) INVITE message.

13. The method of claim 12 wherein the call termination identifier is at least one of a SIP Uniform Resource Identifier (URI) and a called number.

14. A mobile switching center emulation (MSCe) in a wireless communication network including a circuit fabric and a packet fabric comprising:

network interface circuitry for intercommunicating with the circuit fabric and the packet fabric of the wireless communication network;

processing circuitry coupled to the network interface circuitry for processing data to and from the wireless communication network;

memory coupled to the processing circuitry, wherein the memory stores operational instructions that cause the processing circuitry to;

receive an origination message including a call termination identifier from an originating base station controller (BSC);

generate a bearer resource preference list based upon the call termination identifier and a calling party profile including call setup capabilities, which includes a predetermined priority preference order of a plurality of bearer path resource identifiers including at least one of a packet bearer resource identifier and a trunk bearer resource identifier;

send, in response to the origination message, the bearer resource preference list to the originating BSC for matching with an available bearer path resource;

receive, from the originating BSC, the matched bearer path resource identifier; and

select the bearer path resource based upon the matched bearer path resource identifier.

15. The MSCe of claim 14 wherein the memory further stores operational instructions that cause the processing circuitry to:

send the selected bearer path resource identifier through to a terminating MSCe based upon the selected bearer resource, the terminating MSCe, based upon the selected bearer path resource, identifies an appropriate priority resource list to a terminating BSC, which selects a terminating bearer path resource based upon the appropriate priority bearer path resource list and the terminating bearer path resources available at the terminating BSC.

16. The MSCe of claim 14 wherein operational instructions that cause the processing circuitry to generate the bearer resource preference list further comprise:

when the bearer resource preference list includes a packet bearer resource identifier, accessing the calling party profile to determine whether the call termination identifier indicates transcoder free operation (TrFO) packet operation;

when the call termination identifier indicates TrFO packet operation, including with the bearer resource preference list a TrFO packet bearer resource identifier.

17. The MSCe of claim 14 wherein the calling party profile indicates TrFO packet operation by an enhanced variable rate codec (EVRC) indication.

18. The MSCe of claim 14 wherein the origination message is a Session Initiation Protocol (SIP) INVITE message.

19. The MSCe of claim 18 wherein the call termination identifier is at least one of a SIP Uniform Resource Identifier (URI) and a called number.

20. The MSCe of claim 14 wherein the origination message is an Interoperability Specification (IOS) message.