Method and communication network for operating a cross coding element

• US 20040037312A1
• Filed: 08/23/2002
• Published: 02/26/2004
• Est. Priority Date: 08/23/2002
• Status: Abandoned Application

• Current Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Spear, Stephen L.
• Application Number:
  US10/226,793
• Publication Number:
  US 20040037312A1
• Time in Patent Office: Days
• US Class Current: 370/465
• CPC Class Codes: H04L 65/765 intermediate
• CPC Class Codes: H04W 88/18 Service support devices; Network management devices
• CPC Class Codes: H04W 88/181 Transcoding devices; Rate adaptation devices

Abstract

A method (400) and a communication network (110) for operating a cross coding element are described herein. The communication network (110) may detect a condition suggesting a change in encoded protocols between a first endpoint (240) and a second endpoint (250) such as, but not limited to, a call setup, an application requirement, and a handover associated with the first endpoint (240). The first endpoint (240) may operate in accordance with a first encoded protocol whereas the second endpoint (250) may operate in accordance with a second encoded protocol. The communication network (110) may communicate with a cross coding element (230) configured to convert a first encoded protocol signal from the first endpoint (240) to a second encoded signal. The first encoded signal may be encoded by the first encoded protocol, and the second encoded signal may be encoded by the second encoded protocol.

Claims

1. In communication system, wherein a first endpoint is operable in accordance with a first encoded protocol, and a second endpoint is operable in accordance with a second encoded protocol, a method for operating a cross coding element, the method comprising:

detecting a condition suggesting a change in encoded protocols between the first and second endpoints; and

communicating with a cross coding element configured to convert a first encoded signal from the first endpoint to a second encoded signal, the first encoded signal being encoded by the first encoded protocol, and the second encoded signal being encoded by the second encoded protocol.

2. The method of claim 1, wherein the step of detecting a condition suggesting a change in encoded protocols between the first and second network endpoints comprises detecting one of a call setup, an application requirement, and a handover associated with the first endpoint.

3. The method of claim 1, wherein each of the first and second endpoints is one of a mobile station, a gateway, a server, a fixed Internet Protocol (IP) phone, and a voice over IP (VoIP) endpoint.

4. The method of claim 1, wherein the step of communicating with a cross coding element configured to convert a first encoded protocol signal from the first endpoint to a second encoded signal comprises communicating with the cross coding element via a gateway.

5. The method of claim 1, wherein the first encoded protocol is one of an enhanced variable rate codec (EVRC), a code excited linear prediction (CELP) codec, a selective mode vocoder (SMV) codec, a full rate codec, a half rate codec, an enhanced full rate codec, an adaptive multi-rate (AMR) codec, a time division multiple access (TDMA) based codec, and a voice over Internet protocol (VoIP) based codec.

6. The method of claim 1, wherein the second encoded protocol is one of an enhanced variable rate codec (EVRC), a code excited linear prediction (CELP) codec, a selective mode vocoder (SMV) codec, a full rate codec, a half rate codec, an enhanced full rate codec, an adaptive multi-rate (AMR) codec, a time division multiple access (TDMA) based codec, and a voice over Internet protocol (VoIP) based codec.

7. The method of claim 1, wherein the communication system operates in accordance with one of a code division multiple access (CDMA) based communication protocol, a global system for mobile (GSM) based communication protocol, an integrated digital enhanced network (iDEN) based communication protocol, and a voice over Internet protocol (VoIP) based communication protocol.

8. In communication system, wherein a first endpoint operating in accordance with a first encoded protocol, and a second endpoint operating in accordance with a second encoded protocol, a communication network for operating a cross coding element, the communication network comprising:

a memory;

a controller operatively coupled to the memory, the controller being programmed to detect a condition suggesting a change in encoded protocols between the first and second endpoint,

the controller being programmed to communicate with a cross coding element configured to convert a first encoded signal from the first endpoint to a second encoded signal, the first encoded signal being encoded by the first encoded protocol, and the second encoded signal being encoded by a second encoded protocol.

9. The communication network of claim 8, wherein the cross coding element is integrated into the communication network.

10. The communication network of claim 8, wherein the controller is integrated into one of a mobility controller, a call server, and a call agent.

11. The communication network of claim 8, wherein the condition suggesting a change in encoded protocols comprises one of a call setup, an application requirement, and a handover associated with the first endpoint.

12. The communication network of claim 8, wherein each of the first and second endpoints is one a mobile station, a gateway, a server, a fixed Internet Protocol (IP) phone, and a voice over IP (VoIP) endpoint.

13. The communication network of claim 8, wherein the first encoded protocol is one of an enhanced variable rate codec (EVRC), a code excited linear prediction (CELP) codec, a selective mode vocoder (SMV) codec, a full rate codec, a half rate codec, an enhanced full rate codec, an adaptive multi-rate (AMR) codec, a time division multiple access (TDMA) based codec, and a voice over Internet protocol (VoIP) based codec.

14. The communication network of claim 8, wherein the second encoded protocol is one of an enhanced variable rate codec (EVRC), a code excited linear prediction (CELP) codec, a selective mode vocoder (SMV) codec, a full rate codec, a half rate codec, an enhanced full rate codec, an adaptive multi-rate (AMR) codec, a time division multiple access (TDMA) based codec, and a voice over Internet protocol (VoIP) based codec.

15. The communication network of claim 8, wherein the communication network comprises one of an Internet Protocol (IP) network, an asynchronous transfer mode (ATM) network, and a circuit network.

16. The communication network of claim 8, wherein the communication network is operable in accordance with a code division multiple access (CDMA) based communication protocol, a global system for mobile (GSM) based communication protocol, an integrated digital enhanced network (iDEN) based communication protocol, and a voice over internet protocol (VoIP) based communication protocol.

17. In a communication system, wherein a first endpoint operating in accordance with a first encoded protocol and a second endpoint operating in accordance with a second encoded protocol, and wherein a controller operates in accordance to a computer program embodied on a computer-readable medium for operating a cross coding element, the computer program comprising:

a first routine that directs the controller to detect a condition suggesting a change in encoded protocols between the first and second endpoints; and

a second routine that directs the controller to communicate with a cross coding element configured to convert a first encoded signal from the first endpoint to a second encoded signal, the first encoded signal being encoded by the first encoded protocol and the second encoded signal being encoded by the second encoded protocol.

18. The computer program of claim 17, wherein the controller is integrated into one of a mobility controller, a call server, and a call agent.

19. The computer program of claim 17, wherein the first routine comprises a routine that directs the controller to detect one of a call setup, an application requirement, and a handover associated with the first endpoint.

20. The computer program of claim 17, wherein each of the first and second endpoints is one of a mobile station, a gateway, a server, a fixed Internet Protocol (IP) phone, and a voice over IP (VoIP) endpoint.

21. The computer program of claim 17, wherein the second routine comprises a routine that directs the controller to communicate with the cross coding element via a gateway.

22. The computer program of claim 17, wherein the first encoded protocol is one of an enhanced variable rate codec (EVRC), a code excited linear prediction (CELP) codec, a selective mode vocoder (SMV) codec, a full rate codec, a half rate codec, an enhanced full rate codec, an adaptive multi-rate (AMR) codec, a time division multiple access (TDMA) based codec, and a voice over Internet protocol (VoIP) based codec.

23. The computer program of claim 17, wherein the second encoded protocol is one of an enhanced variable rate codec (EVRC), a code excited linear prediction (CELP) codec, a selective mode vocoder (SMV) codec, a full rate codec, a half rate codec, an enhanced full rate codec, and adaptive multi-rate (AMR) codec, a time division multiple access (TDMA) based codec, and a voice over Internet protocol (VoIP) based codec.

24. The computer program of claim 17 operates in accordance with one of a code division multiple access (CDMA) based communication protocol, a global system for mobile (GSM) based communication protocol, an integrated digital enhanced network (iDEN) based communication protocol, and a voice over Internet protocol (VoIP) based communication protocol.

25. The computer program of claim 17, wherein the medium comprises one of paper, a programmable gate array, application specific integrated circuit, erasable programmable read only memory, read only memory, random access memory, magnetic media, and optical media.

26. In communication system, wherein a first endpoint is operable in accordance with a first encoded protocol, and a second endpoint is operable in accordance with a second encoded protocol, a method for operating a cross coding element, the method comprising:

detecting a condition suggesting a change in encoded protocols between the first and second endpoints within one of a call server and a call agent; and

communicating from one of the call server and the call agent to a means for converting a first encoded signal from the first endpoint to a second encoded signal, the first encoded signal being encoded by the first encoded protocol, and the second encoded signal being encoded by the second encoded protocol.

27. The method of claim 26, wherein the step of communicating from one of the call server and the call agent to a means for converting a first encoded signal from the first endpoint to a second encoded signal comprises communicating with the means for converting a first encoded signal from the first endpoint to a second encoded signal during renegotiation for an encoded protocol between the first and second endpoints in response to one of an application requirement and a handover.

28. The method of claim 26, wherein the step of communicating from one of the call server and the call agent to a means for converting a first encoded signal from the first endpoint to a second encoded signal comprises communicating from one of the call server and the call agent to one of a cross coding element and two transcoding elements.