Apparatus, systems and methods for providing enhancements to ATSC networks using synchronous vestigial sideband (VSB) frame slicing

• US 7,672,399 B2
• Filed: 03/01/2006
• Issued: 03/02/2010
• Est. Priority Date: 03/02/2005
• Status: Active Grant

• Current Assignee: Rohde & Schwarz GmbH & Company KG
• Original Assignee: Rohde & Schwarz GmbH & Company KG
• Inventors: Simon, Michael
• Primary Examiner(s): Odom; Curtis B
• Application Number:
  US11/276,473
• Publication Number:
  US 20060200853A1
• Time in Patent Office: 1,462 Days
• Field of Search: 375/299
• US Class Current: 375/299
• CPC Class Codes: H04L 1/0057 Block codes H04L1/0061, H04L1/0064 take precedence
• CPC Class Codes: H04L 1/0065 Serial concatenated codes
• CPC Class Codes: H04L 1/007 Unequal error protection for format H04L1/0078; for codes per se H03M13/35
• CPC Class Codes: H04L 1/0071 Use of interleaving interleaving per se H03M13/27
• CPC Class Codes: H04L 1/0083 Formatting with frames or packets; Protocol or part of protocol for error control
• CPC Class Codes: H04L 2001/0093 Point-to-multipoint
• CPC Class Codes: H04L 27/02 Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation H04L27/32 takes precedence
• CPC Class Codes: H04L 27/04 Modulator circuits; Transmitter circuits
• CPC Class Codes: H04N 21/23412 for generating or manipulating the scene composition of objects, e.g. MPEG-4 objects
• CPC Class Codes: H04N 21/2383 Channel coding or modulation of digital bit-stream, e.g. QPSK modulation arrangements for detecting or preventing errors in the information received by adapting the channel coding H04L1/0009; analogue front ends or means for connecting modulators, demodulators or transceivers to a transmission line H04L27/0002
• CPC Class Codes: H04N 21/242 Synchronization processes, e.g. processing of PCR [Program Clock References] arrangements for synchronising broadcast or distribution via plural systems in broadcast distribution systems H04H20/18
• CPC Class Codes: H04N 21/4382 Demodulation or channel decoding, e.g. QPSK demodulation analog front ends or means for connecting modulators, demodulators or transceivers to a transmission line H04L27/0002
• CPC Class Codes: H04N 21/6131 involving transmission via a mobile phone network wireless downlink channel access H04W74/006

Abstract

Systems, methods, apparatus and computer program products are provided for signaling to a receiver an availability of a service and a deterministic mapping of a service content corresponding to the service. A modulator receives a digital signal and generates a data frame from the digital signal, where the data frame is divided into segments, where at least one grouping of the segments contains the service content. The modulator modulates at least one grouping in accordance with the deterministic mapping. A receiving device receives a digital signal containing the availability of a service, the deterministic mapping corresponding to the service, and the service content, and performs an operation on the service content in accordance with the deterministic mapping.

Claims

1. A method for providing to a receiver a digital signal corresponding to a service, comprising the steps of:

receiving a service content and a deterministic mapping corresponding to the service;

signaling to the receiver an availability of the service;

signaling to the receiver the deterministic mapping of the service content corresponding to the service;

generating a data frame, wherein the data frame is divided into a predetermined number of segments, and wherein at least part of the service content is contained in at least one grouping of the predetermined number of segments; and

modulating the at least one grouping of the predetermined number of segments in accordance with the deterministic mapping.

2. The method according to claim 1, further comprising the step of:

multiplexing the service content into at least one grouping of a predetermined number of packets.

3. The method according to claim 1, wherein the deterministic mapping maps content at a physical layer.

4. The method according to claim 1, further comprising the steps of:

signaling to the receiver an availability of another service and another deterministic mapping corresponding to another service content of the another service; and

multiplexing each service content respectively into a plurality of groupings of a predetermined number of packets.

5. The method according to claim 4, further comprising the step of:

controlling a quality of service for each one of the services on a per service basis.

6. The method according to claim 2, further comprising the steps of:

buffering a block of packets corresponding to the service content;

error correction encoding the block of packets in a transverse direction with respect to an inner error correction coding to be performed in a modulator; and

interspersing the encoded block of packets into a transport stream.

7. The method according to claim 1, further comprising the steps of:

buffering a block of packets corresponding to the service content; and

transmitting the block of packets at a plurality of predetermined points in time.

8. The method according to claim 7, wherein the plurality of predetermined points in time define a burst of the service content.

9. The method according to claim 8, wherein the burst is a contiguous burst.

10. The method according to claim 1, further comprising the step of:

multiplexing a transport stream containing the service content into at least one grouping of a predetermined number of packets.

11. The method according to claim 4, further comprising the step of:

multiplexing a transport stream containing each service content respectively into a plurality of groupings of a predetermined number of segments.

12. The method of claim 11, wherein the plurality of groupings of the predetermined number of segments are at known locations in a physical layer Vestigial Sideband (VSB) data frame.

13. The method according to claim 4, further comprising the step of:

modulating the plurality of groupings of the predetermined number of packets in accordance with each deterministic mapping.

14. The method of claim 1, further comprising the step of:

performing an operation on the service content in accordance with the deterministic mapping.

15. The method of claim 14, wherein the operation is error correction decoding a block of packets encoded in a transverse direction with respect to an inner error correction coding performed in a modulator.

16. The method of claim 14, wherein the operation is a power conservation operation.

17. The method of claim 4, further comprising the step of:

performing a plurality of operations on each service content in accordance with each deterministic mapping, respectively.

18. The method of claim 17, further comprising the step of:

switching between the respective service contents in accordance with each deterministic mapping.

19. An apparatus for providing to a receiver a digital signal corresponding to a service, comprising:

a transport stream receiver operable to receive service content and a deterministic mapping corresponding to the service;

a signaling unit operable to signal to the receiver an availability of the service and the deterministic mapping of the service content corresponding to the service;

a data frame generator operable to generate a data frame, wherein the data frame is divided into a predetermined number of segments, and wherein the service content is contained in at least one grouping of the predetermined number of segments; and

a modulator operable to modulate the at least one grouping of the predetermined number of segments in accordance with the deterministic mapping.

20. The apparatus according to claim 19, further comprising:

a multiplexing unit operable to multiplex the service content into at least one grouping of a predetermined number of packets.

21. The apparatus according to claim 19, wherein the deterministic mapping maps content at a physical layer.

22. The apparatus according to claim 19, further comprising:

a signaling unit operable to signal to the receiver an availability of another service and another deterministic mapping corresponding to another service content of the another service; and

a multiplexing unit operable to multiplex each service content respectively into a plurality of groupings of a predetermined number of packets.

23. The apparatus according to claim 22, further comprising:

a control unit operable to control a quality of service for each one of the services on a per service basis.

24. The apparatus according to claim 20, further comprising:

a buffer operable to buffer a block of packets corresponding to the service content;

an encoder unit operable to error correction encode the block of packets in a transverse direction with respect to an inner error correction coding to be performed in a modulator; and

a logic unit operable to intersperse the encoded block of packets into a transport stream.

25. The apparatus according to claim 19, further comprising:

a buffer operable to buffer a block of packets corresponding to the service content; and

a transmitter operable to transmit the block of packets at a plurality of predetermined points in time.

26. The apparatus according to claim 25, wherein the plurality of predetermined points in time define a burst of the service content.

27. The apparatus according to claim 26, wherein the burst is a contiguous burst.

28. The apparatus according to claim 19, further comprising:

a multiplexing unit operable to multiplex a transport stream containing the service content into at least one grouping of a predetermined number of packets.

29. The apparatus according to claim 22, further comprising:

a multiplexing unit operable to multiplex a transport stream containing each service content respectively into a plurality of groupings of a predetermined number of segments.

30. The apparatus of claim 29 wherein the plurality of groupings of the predetermined number of segments are at known locations in a physical layer Vestigial Sideband (VSB) data frame.

31. The apparatus according to claim 22, further comprising:

a modulator operable to modulate the plurality of groupings of the predetermined number of packets in accordance with each deterministic mapping.

32. The apparatus of claim 19, further comprising:

a processor operable to perform an operation on the service content in accordance with the deterministic mapping.

33. The apparatus of claim 32, wherein the operation is error correction decoding a block of packets encoded in a transverse direction with respect to an inner error correction coding performed in a modulator.

34. The apparatus of claim 32, wherein the operation is a power conservation operation.

35. The apparatus of claim 22, further comprising:

a processor operable to perform a plurality of operations on the each service content in accordance with each deterministic mapping. respectively.

36. The apparatus of claim 35, further comprising:

a switching unit operable to switch between the respective service contents in accordance with each deterministic mapping.

37. An apparatus for providing to a receiver a digital signal corresponding to a service, comprising:

means for receiving a service content and a deterministic mapping corresponding to the service;

means for signaling to the receiver an availability of the service and the deterministic mapping of the service content corresponding to the service;

means for generating a data frame, wherein the data frame is divided into a predetermined number of segments, and wherein the service content is contained in at least one grouping of the predetermined number of segments; and

means for modulating the at least one grouping of the predetermined number of segments in accordance with the deterministic mapping.

38. The apparatus according to claim 37, further comprising:

means for multiplexing a digital signal containing the service content into at least one grouping of a predetermined number of packets.

39. The apparatus according to claim 37, further comprising:

means for signaling to the receiver an availability of another service and another deterministic mapping corresponding to another service content of the another service; and

means for multiplexing each service content respectively into a plurality of groupings of a predetermined number of packets.

40. The apparatus according to claim 39, further comprising:

means for controlling a quality of service for each one of the services on a per service basis.

41. The apparatus according to claim 37, further comprising:

means for buffering a block of packets corresponding to the service content;

means for error correction encoding the block of packets in a transverse direction with respect to an inner error correction coding to be performed in a modulator; and

means for interspersing the encoded block of packets into a transport stream.

42. The apparatus according to claim 37, further comprising:

means for buffering a block of packets of a digital signal corresponding to the service content; and

means for transmitting the block of packets at a plurality of predetermined points in time.

43. The apparatus according to claim 37, further comprising:

means for multiplexing a transport stream containing the service content into at least one grouping of a predetermined number of packets.

44. The apparatus according to claim 39, further comprising:

means for multiplexing each service content respectively into a plurality of groupings of a predetermined number of segments.

45. The apparatus according to claim 39, further comprising:

means for modulating the plurality of groupings of the predetermined number of packets in accordance with each deterministic mapping.

46. The apparatus of claim 37, further comprising:

means for performing an operation on the service content in accordance with the deterministic mapping.

47. The apparatus of claim 39, further comprising:

means for performing a plurality of operations on each service content in accordance with each deterministic mapping, respectively.

48. The apparatus of claim 47, further comprising:

means for switching between the respective service contents in accordance with each deterministic mapping.

49. The apparatus according to claim 37, wherein the deterministic mapping maps content at a physical layer.

50. A computer program product comprising a computer usable medium having control logic stored therein for providing to a receiver a digital signal corresponding to a service, said control logic comprising:

computer readable program code means for causing the computer to receive a service content and a deterministic mapping corresponding to the service;

computer readable program code means for causing the computer to signal to the receiver an availability of the service and the deterministic mapping;

computer readable program code means for causing the computer to generate a data frame, wherein the data frame is divided into a predetermined number of segments, and wherein the service content is contained in at least one grouping of the predetermined number of segments; and

computer readable program code means for causing the computer to modulate the a least one grouping of the predetermined number of segments in accordance with the deterministic mapping.

51. The computer program product of claim 50, further comprising:

computer readable program code means for causing the computer to multiplex a digital signal containing the service content into at least one grouping of a predetermined number of packets.

52. The computer program product of claim 50, wherein the deterministic mapping maps content at a physical layer.

53. The computer program product of claim 50, further comprising:

computer readable program code means for causing the computer to signal to the receiver an availability of another service and another deterministic mapping corresponding to another service content of the another service; and

computer readable program code means for causing the computer to multiplex each service content respectively into a plurality of groupings of a predetermined number of packets.

54. The computer program product of claim 53, further comprising:

computer readable program code means for causing the computer to control a quality of service for each one of the services on a per service basis.

55. The computer program product of claim 51, further comprising:

computer readable program code means for causing the computer to buffer a block of packets corresponding to the service content;

computer readable program code means for causing the computer to error correction encode the block of packets in a transverse direction with respect to an inner error correction coding to be performed in a modulator; and

computer readable program code means for causing the computer to intersperse the encoded block of packets into a transport stream.

56. The computer program product of claim 50, further comprising:

computer readable program code means for causing the computer to buffer a block of packets of a digital signal corresponding to the service content; and

computer readable program code means for causing the computer to transmit the block of packets at a plurality of predetermined points in time.

57. The computer program product of claim 56, wherein the plurality of predetermined points in time define a burst of the service content.

58. The computer program product of claim 57, wherein the burst is a contiguous burst.

59. The computer program product of claim 50, further comprising:

computer readable program code means for causing the computer to multiplex a transport stream containing the service content into at least one grouping of a predetermined number of packets.

60. The computer program product of claim 53, further comprising:

computer readable program code means for causing the computer to multiplex a transport stream containing each service content respectively into a plurality of groupings of a predetermined number of segments.

61. The computer program product of claim 60, wherein the plurality of groupings of the predetermined number of segments are at known locations in a physical layer Vestigial Sideband (VSB) data frame.

62. The computer program product of claim 53, further comprising:

computer readable program code means for causing the computer to modulate the plurality of groupings of the predetermined number of packets in accordance with each deterministic mapping.

63. The computer program product of claim 50, further comprising:

computer readable program code means for causing the computer to perform an operation on the service content in accordance with the deterministic mapping.

64. The computer program product of claim 63, wherein the operation is error correction decoding a block of packets encoded in a transverse direction with respect to an inner error correction coding performed in a modulator.

65. The computer program product of claim 63, wherein the operation is a power conservation operation.

66. The computer program product of claim 53, further comprising:

computer readable program code means for causing the computer to perform a plurality of operations on each service content in accordance with each deterministic mapping, respectively.

67. The computer program product of claim 66, further comprising:

computer readable program code means for causing the computer to switch between the respective service contents in accordance with each deterministic mapping.