Fast session setup extensions to H.324

• US 20060159037A1
• Filed: 12/15/2005
• Published: 07/20/2006
• Est. Priority Date: 12/15/2004
• Status: Active Grant

• Current Assignee: Onmobile Global Limited
• Original Assignee: Dilithium Holdings, Inc. (Dilithium Networks, Inc.)
• Inventors: Jack, David, Wong, Albert C., Kenrick, Brody, Jongbloed, Robert, Jabri, Marwan A.
• Granted Patent: US 7,706,319 B2
• Time in Patent Office: Days
• US Class Current: 370/310
• CPC Class Codes: H04L 65/1069 Session establishment or de-establishment
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/1106 Call signalling protocols; H.323 and related
• CPC Class Codes: H04Q 2213/13109 Initializing, personal profile
• CPC Class Codes: H04Q 2213/13204 Protocols
• CPC Class Codes: H04Q 2213/13248 Multimedia
• CPC Class Codes: H04Q 2213/13337 Picturephone, videotelephony
• CPC Class Codes: H04Q 2213/13396 Signaling in general, in-band signalling
• CPC Class Codes: H04Q 3/0045 involving hybrid, i.e. a mixture of public and private, or multi-vendor systems

Abstract

A method of initiating a set up process for a call between users with reduced set up times using one or more 3G telecommunication networks. The method includes establishing a bearer channel between a first terminal and a second terminal after a call signaling process and determining, at the first terminal, one or more preferences for a call between the first terminal and the second terminal. The one or more preferences are associated with one or more modes of operation for the call. The method also includes determining a mobile level for operations and interleaving the one or more preferences, the mobile level for operations, and one or more media streams. The method further includes transferring the one or more preferences, the mobile level for operations, and the one or more media streams from the first terminal to the second terminal through a portion of a telecommunication network using the bearer channel.

Claims

1. A method of initiating a set up process for a call between users with reduced set up times using one or more 3G telecommunication networks, the method being provided between at least a pair of H.324-like terminals coupled to the one or more 3G telecommunication networks, the method comprising:

establishing a bearer channel between a first terminal and a second terminal after a call signaling process;

determining, at the first terminal, one or more preferences for a call between the first terminal and the second terminal, the one or more preferences being associated with one or more modes of operation for the call between the first terminal and the second terminal;

determining a mobile level for operations;

interleaving the one or more preferences, the mobile level for operations, and one or more media streams; and

transferring the one or more preferences, the mobile level for operations, and the one or more media streams from the first terminal to the second terminal through a portion of a telecommunication network using the bearer channel.

2. The method of claim 1 wherein transferring the one or more preferences, the mobile level for operations, and the one or more media streams is performed prior to receiving any messages from the second terminal.

3. The method of claim 1 wherein the one or more modes of operation comprise profiles for at least one of transmitting or receiving data.

4. The method of claim 1 wherein the message comprises one or more transmission preferences.

5. The method of claim 1 wherein the portion of the telecommunication network is capable of transmitting at least voice, video, and data.

6. The method of claim 1 further comprising processing the one or more preferences and the mobile level for operations as a combined message.

7. The method of claim 1 wherein interleaving comprises one or more preferences, the mobile level for operations, an additional one or more preferences, and one or more media streams in sequential order.

8. The method of claim 7 wherein the additional one or more preferences are identical with the one or more preferences.

9. The method of claim 7 further comprising repetition of interleaving.

10. A method of initiating a set up process for a call between users with reduced set up times using one or more 3G telecommunication networks, the method being provided between at least a pair of H.324-like terminals coupled to the one or more 3G telecommunication networks, the method comprising:

establishing a bearer channel between a first terminal and a second terminal after a call signaling process;

receiving, at the second terminal, one or more preferences for a call between the first terminal and the second terminal, the one or more preferences being associated with one or more modes of operation for the call between the first terminal and the second terminal;

receiving, at the second terminal, a mobile level for operations through a portion of a telecommunication network using the bearer channel; and

receiving, at the second terminal, one or more media steams, wherein the one or more preferences, the mobile level for operations, and the one or more media streams are interleaved and wherein the second terminal is adapted to receive the one or more media streams upon establishment of the bearer channel.

11. The method of claim 10 wherein the second terminal is adapted to receive the one or more media streams in a time less than one half of a round trip time.

12. The method of claim 10 wherein a time difference between establishing a bearer channel and receiving the one or more media streams is less than one half a round trip time.

13. The method of claim 10 wherein the one or more modes of operation comprise profiles for receiving data.

14. A method of initiating a set up process for a call between users with reduced set up times using one or more 3G telecommunication networks, the method being provided between at least a pair of H.324-like terminals coupled to the one or more 3G telecommunication networks, the method comprising:

establishing a bearer channel between a first terminal and a second terminal after a call signaling process;

transferring media prior to establishing a session configuration; and

transferring a message with one or more preferences for the session configuration.

15. The method of claim 14 wherein one or more preferences for the session configuration are signaled by a custom message interleaved with the media.

16. The method of claim 14 wherein the one or more preferences for the session configuration are signaled by the media.

17. The method of claim 14 wherein the one or more preferences for the session configuration are signaled by a custom message interleaved with the media and one or more mobile level signaling flags.

18. The method of claim 17 wherein interleaving comprises one or more preferences, the mobile level for operations, an additional one or more preferences, and one or more media streams in sequential order.

19. The method of claim 18 wherein the additional one or more preferences are identical with the one or more preferences.

20. The method of claim 17 further comprising repetition of interleaving.

21. The method of claim 14 wherein transferring media prior to establishing a session configuration comprises a reduced set up time technique characterized by a set up time that is reduced in comparison to a conventional set up technique.

22. The method of claim 21 wherein the set up time is less than 3 round trip times.

23. The method of claim 22 wherein the set up time is less than 2 round trip times.

24. The method of claim 23 wherein the set up time is less than 1 round trip times.

25. The method of claim 24 wherein the set up time is less than ½

round trip times.

26. A method of initiating a call between users with reduced call set up times using one or more 3G telecommunication networks, the method being provided between at least a pair of H.324-like devices coupled to the one or more 3G telecommunication networks, the method comprising:

transmitting a call signaling message from a first device to a second device through a telecommunication network to initiate a call;

establishing a bearer channel between the first device and the second device once the call signaling message has been received by the second device;

determining a mobile level for operation;

providing one or more capabilities in a H.245 terminal capabilities set message defining one or more modes of operation;

transmitting the one or more capabilities in the H.245 terminal capability set message; and

establishing a mode of operation between the first device and the second device through the bearer channel based upon at least one or more of the one or more modes of operation.

27. The method of claim 26 wherein the one or more capabilities comprise at least one of non-standard capabilities, standard capabilities, or custom capabilities.

28. The method of claim 26 wherein the one or more modes of operation are associated with profiles.

29. The method of claim 28 wherein the profiles comprise at least a codec, a logical channel number, multiplexer table entry number, or a multiplexer table entry.

30. The method of claim 28 wherein the profiles comprise the codec, the logical channel number, the multiplexer table entry number, and the multiplexer table entry.

31. The method of claim 28 wherein the profiles define one or more characteristics of the call.

32. The method of claim 31 wherein the one or more characteristics comprise at least one of bit rate, frame size, codec feature, or symmetric capability.

33. A method of initiating a call between users using one or more 3G telecommunication networks, the method being provided between at least a pair of H.324-like terminals coupled to the one or more 3G telecommunication networks, the method comprising:

establishing a bearer channel between a first terminal and a second terminal after a call signaling process;

determining that a set up process with reduced set up times is to be utilized;

transmitting a first custom message from the first terminal to the second terminal through a portion of a telecommunication network using the bearer channel;

monitoring, at the first terminal, for a second custom message from the second terminal;

detecting if a set up process with reduced set up times is being utilized by the second terminal; and

reverting to a different set up process.

34. The method of claim 33 wherein detecting if a set up process with reduced set up times is being utilized comprises detecting only valid mobile level stuffing flags.

35. The method of claim 33 wherein detecting if a set up process with reduced set up times is being utilized comprises detecting a standard TCS.

36. The method of claim 33 wherein detecting if a set up process with reduced set up times is being utilized comprises detecting a time out operation.

37. The method of claim 33 wherein detecting if a set up process with reduced set up times is being utilized comprises detecting that the second message has not been received by the first terminal.

38. The method of claim 33 wherein detecting if a set up process with reduced set up times is being utilized comprises determining no compatible mode of operation associated with the first custom message and the second custom message exists between the first terminal and the second terminal.

39. The method of claim 33 wherein the different set up process is characterized by standard set up times.

40. The method of claim 33 wherein the different set up process is characterized by set up times using an SRP extension.

41. The method of claim 33 wherein the different set up process is one of the AnswerFast Type I technique or the AnswerFast Type II technique.

42. A method of modifying a mode of operation for a call between users using one or more 3G telecommunication networks, the method being provided between at least a pair of H.324-like terminals coupled to the one or more 3G telecommunication networks, the method comprising:

utilizing a reduced set up time technique to establish the call between users, wherein the call is characterized by a first mode of operation;

determining a second mode of operation for the call;

utilizing a conventional H.245 procedure to negotiate the second mode of operation for the call; and

establishing the second mode of operation for the call.

43. The method of claim 42 wherein the second mode of operation is characterized by additional capabilities not provided by the first mode of operation.

44. The method of claim 42 wherein the second mode of operation is characterized by at least one of adding a channel, removing a channel, modifying a channel, or replacing a channel, the channel created in association with the first mode of operation.

45. The method of claim 42 wherein establishing the second mode of operation comprises adjusting at least one of a bit rate or codec capability.

46. The method of claim 42 wherein establishing the second mode of operation comprises the transmission of one or more H.245 request, command, indication, or response messages.

47. The method of claim 46 wherein establishing the second mode of operation comprises the transmission of one or more TerminalCapabilitySet messages.

48. The method of claim 46 wherein establishing the second mode of operation comprises the transmission of one or more OpenLogicalChannel messages.

49. The method of claim 42 wherein the reduced set up time technique comprises indicating one or more capabilities in a H.245 terminal capabilities set message.

50. The method of claim 42 wherein the reduced set up time technique comprises indicating one or more NonStandard, standard, or custom fields in an H.245 message.

51. The method of claim 42 wherein the reduced set up time technique comprises indicating one or more custom messages transmitted on a bearer.

52. The method of claim 42 wherein the reduced set up time technique comprises indicating one or more custom messages transmitted in a call signaling message.

53. The method of claim 42 wherein the reduced set up time technique comprises the use of an SRP extension.

54. A method of initiating a set up process for a call between users with reduced set up times using one or more 3G telecommunication networks, the method being provided between at least a pair of H.324-like terminals coupled to the one or more 3G telecommunication networks, the method comprising:

providing one or more tables stored in one or more memories, the one or more tables including one or more predefined profiles, the one or more predefined profiles being associated with one or more modes of operation of a call between a first terminal and a second terminal;

establishing a bearer channel between the first terminal and the second terminal by a call signaling process;

indicating one or more predefined profiles in one or more NonStandard, standard, or custom fields in an H.245 message;

receiving, at the second terminal, one or more preferences for the call, the one or more preferences specifying at least one of the one or more predefined profiles;

determining, at the second terminal, a compatible mode of operation for the call, based in part on the received one or more preferences; and

establishing, through the bearer channel, the compatible mode of operation for the call in accordance with the at least one of the one or more predefined profiles.

55. The method of claim 54 wherein the one or more predefined profiles are indicated in an H.245 terminal capabilities set message.

56. The method of claim 54 wherein the one or more predefined profiles comprise at least one of a codec, a logical channel number, a multiplexer table entry, or a multiplexer table entry number.

57. The method of claim 54 wherein a profile included in the one or more predefined profiles comprises a codec, a logical channel number, a multiplexer table entry, and multiplex table entry number.

58. The method of claim 57 wherein the profile comprises a GSM-AMR codec, logical channel number 1, multiplexer table entry “

1 UCF”

, and multiplexer table entry number 1.

59. The method of claim 57 wherein the profile comprises a H.263 codec, logical channel number 2, multiplexer table entry “

2 UCF”

, and multiplexer table entry number 2.

60. The method of claim 54 wherein a profile included in the one or more predefined profiles comprises at least one of a transmit only capability, receive only capability, or a transmit and receive capability.

61. The method of claim 54 wherein a profile included in the one or more predefined profiles comprises one or more characteristics including at least one of bit rate, frame size, codec feature, or symmetric capability.

62. The method of claim 54 wherein subsequent alterations to the call configuration are negotiated using conventional H.245 procedures.

63. A method of initiating a set up process for a call between users with reduced set up times using one or more 3G telecommunication networks, the method being provided between at least a pair of H.324-like terminals coupled to the one or more 3G telecommunication networks, the method comprising:

providing one or more tables stored in one or more memories, the one or more tables including one or more predefined profiles, the one or more predefined profiles being associated with one or more modes of operation of a call between a first terminal and a second terminal;

establishing a bearer channel between the first terminal and the second terminal by a call signaling process;

indicating one or more predefined profiles in one or more custom messages transmitted on the bearer;

receiving, at the second terminal, one or more preferences for the call, the one or more preferences specifying at least one of the one or more predefined profiles;

determining, at the second terminal, a compatible mode of operation for the call, based in part on the received one or more preferences; and

establishing, through the bearer channel, the compatible mode of operation for the call in accordance with the at least one of the one or more predefined profiles.

64. A method of initiating a set up process for a call between users with reduced set up times using one or more 3G telecommunication networks, the method being provided between at least a pair of H.324-like terminals coupled to the one or more 3G telecommunication networks, the method comprising:

providing one or more tables stored in one or more memories, the one or more tables including one or more predefined profiles, the one or more predefined profiles being associated with one or more modes of operation of a call between a first terminal and a second terminal;

establishing a bearer channel between the first terminal and the second terminal by a call signaling process;

indicating one or more predefined profiles in one or more custom messages transmitted in a call signaling message;

receiving, at the second terminal, one or more preferences for the call, the one or more preferences specifying at least one of the one or more predefined profiles;

determining, at the second terminal, a compatible mode of operation for the call, based in part on the received one or more preferences; and

establishing, through the bearer channel, the compatible mode of operation for the call in accordance with the at least one of the one or more predefined profiles.

65. The method of claim 64 wherein the one or more predefined profiles comprise at least one of a multiplexer level, an indication to use H.223 Annex A double flag, or H.223 Annex B optional header.

68. The method of claim 65 wherein the selected one or more modes of operation are selected by applying a predefined rule to the intersection of the first set of preferences and the second set of preferences.

69. The method of claim 68 wherein the predefined rule is based on the order of the first set of preferences and the second set of preferences.

66. A method of initiating a set up process for a call between users with reduced set up times using one or more 3G telecommunication networks, the method being provided between at least a pair of H.324-like terminals coupled to the one or more 3G telecommunication networks, the method comprising:

determining a first set of preferences for one or more modes of operation at a first terminal;

determining a second set of preferences for one or more modes of operation at a second terminal;

establishing a bearer channel between the first terminal and the second terminal by a call signaling process;

transmitting a custom message associated with the second set of preferences from the second terminal to the first terminal;

selecting, at the first terminal, one or more modes of operation from the first set of preferences and the second set of preferences to provide a selected one or more modes of operation;

selecting, at the second terminal the same one or more modes of operation selected at the first terminal; and

establishing the selected one or more modes of operation between the first device and the second device through the bearer channel.

67. The method of claim 66 wherein the selected one or more modes of operation are selected by finding the intersection of the first set of preferences and the second set of preferences.

70. The method of claim 66 wherein the selected one or more modes of operation are selected by preferences associated with H.245 procedures for a preferred mode.

71. The method of claim 70 wherein the selected one or more modes of operations are selected by applying H.245 methods for conflict resolution.