Method and apparatus for the formatting of data for transmission

• US 5,568,483 A
• Filed: 01/17/1995
• Issued: 10/22/1996
• Est. Priority Date: 06/25/1990
• Status: Expired due to Term

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Tiedemann, Edward G. Jr., Wheatley, Charles E. III, Odenwalder, Joseph P., Padovani, Roberto, Zehavi, Ephraim
• Primary Examiner(s): Safourek, Benedict V.
• Application Number:
  US08/374,444
• Time in Patent Office: 644 Days
• Field of Search: 341/61, 348/384, 348/390, 370/79, 370/82, 370/84, 370/99, 370/102, 370/110.1, 370/111, 371/49.1, 381/29, 381/30, 395/2, 395/2.1, 395/2.38, 455/72, 375/240, 375/241, 375/249
• US Class Current: 370/468
• CPC Class Codes: H04B 1/707 using direct sequence modulation
• CPC Class Codes: H04B 1/70757 with increased resolution, i.e. higher than half a chip H04B1/70758 takes precedence
• CPC Class Codes: H04B 1/7115 Constructive combining of multi-path signals, i.e. RAKE receivers
• CPC Class Codes: H04B 2201/70701 featuring pilot assisted reception
• CPC Class Codes: H04B 2201/70703 using multiple or variable rates
• CPC Class Codes: H04B 7/2618 using hybrid code-time division multiple access [CDMA-TDMA]
• CPC Class Codes: H04B 7/2628 using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA] H04B7/2618 takes precedence
• CPC Class Codes: H04B 7/2637 for logical channel control
• CPC Class Codes: H04J 13/0048 Walsh
• CPC Class Codes: H04J 13/10 Code generation
• CPC Class Codes: H04J 13/18 Allocation of orthogonal codes
• CPC Class Codes: H04J 3/1688 the demands of the users being taken into account after redundancy removal, e.g. by predictive coding, by variable sampling reducing bandwidth of signals in general H04B1/66; in PCM-systems H04B14/046; removal of redundancy in telegraph communication H03M7/30
• CPC Class Codes: H04J 3/22 in which the sources have different rates or codes simultaneous speech and digital data or video transmission H04M11/06; see provisional also H04J3/16
• CPC Class Codes: H04L 1/004 by using forward error control H04L1/0618 takes precedence; coding, decoding or code conversion, for error detection or correction H03M13/00
• CPC Class Codes: H04L 1/0057 Block codes H04L1/0061, H04L1/0064 take precedence
• CPC Class Codes: H04L 1/0059 Convolutional codes
• CPC Class Codes: H04L 1/0065 Serial concatenated codes
• CPC Class Codes: H04L 1/0068 by puncturing
• 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 1/08 : by repeating transmission, e.g. Verdan system H04L1/1858 and H04L1/189 take precedence
• CPC Class Codes: H04L 5/02 : Channels characterised by the type of signal
• CPC Class Codes: H04L 5/023 : Multiplexing of multicarrier modulation signals multicarrier modulation H04L27/2601
• CPC Class Codes: H04W 52/26 : using transmission rate or quality of service QoS [Quality of Service]

Abstract

A method and apparatus for arranging various types of data, and at various rates, into a uniquely structured format for transmission. Data for transmission formatting may be vocoder data or different types of non-vocoder data. The data organized into frames of a predetermined time duration for transmission. The data frames are organized, depending on the data, to be at one of several data rates. Vocoder data is provided at one of several data rates and is organized in the frame according to a predetermined format. Frames may be formatted with a sharing of vocoder data with non-vocoder data to be at a highest frame data rate. Different types of non-vocoder data may be organized so as to also be at the highest frame data rate. Additional control data may be provided within the data frames to support various aspects of the transmission and recovery upon reception.

Claims

1. In a communication system, a method for transmitting a first data frame at a data rate included within a first predetermined data rate set of a set of rate sets, comprising the steps of:

receiving said data frame;

generating a set of parity check bits and tail bits in accordance with a frame rate of said first data frame;

encoding an augmented data frame derived from said first data frame, said parity check bits, and said tail bits, wherein an encoding rate of said encoding is determined in accordance with said first predetermined data rate set of said first data frame; and

transmitting said encoded augmented data frame.

2. The method of claim 1 further including the step of transmitting a second data frame at a selected data rate included within a second predetermined set of data rates, wherein there is a multiplicative factor between corresponding data rates of said first predetermined data rate set and said second predetermined data rate set.

3. The method of claim 2 wherein encoding rates associated with said first predetermined data rate set and said second predetermined data rate set are related by an encoding factor inversely proportional to said multiplicative factor.

4. In a communication system, a method for transmitting a first data frame at a given data rate included within a first predetermined set of data rates, comprising the steps of:

receiving said first data frame and a frame rate indication associated therewith;

generating a formatted data frame by formatting said first data frame in accordance with a predetermined format corresponding to said frame rate indication;

encoding said formatted data frame; and

transmitting said encoded formatted data frame.

5. In a communication system, a method for transmitting first and second data frames at first and second data rates, respectively, said first and second data rates being respectively included first and second predetermined sets of data rates, comprising the steps of:

receiving said first and second data frames and first and second frame rate indications respectively associated with said first and second data frames;

generating first and second formatted data frames by formatting said first and second data frames in accordance with first and second predetermined formats corresponding to said first and second frame rate indications, respectively;

encoding said first and second formatted data frames; and

transmitting said first and second encoded formatted data frames.

6. In a communication system, a method for transmitting information from a subscriber unit to a base station comprising the steps of:

providing a first data frame including traffic channel data of a first type;

generating a formatted data frame of a predetermined format using said first data frame, said formatted data frame including at least one frame quality bit;

encoding said formatted data frame at an encoding rate based upon a frame rate associated with said first data frame; and

transmitting said encoded formatted data frame.

7. The method of claim 6 further including the step of inserting at least one tail bit into said formatted data frame.

8. The method of claim 6 further including the steps of:

providing a second data frame including traffic channel data of a second type, and

generating said formatted data frame using both said first and said second data frame.

9. The method of claim 6 wherein said first type of traffic channel data corresponds to primary traffic data.

10. The method of claim 8 wherein said first type of traffic channel data corresponds to primary traffic data, and wherein said second type of traffic channel data corresponds to secondary traffic data.

11. The method of claim 8 wherein said first type of traffic channel data corresponds to primary traffic data, and wherein said second type of traffic channel data corresponds to signaling traffic data.

12. The method of claim 8 further comprising the step of including, within said formatted data frame:

at least one tail bit,

an erasure indicator bit providing an indication of frame erasure,

a mixed mode bit indicative of the inclusion of said second type of traffic channel data within said formatted data frame, and

one or more frame mode bits for identifying said first and second types of traffic channel data.

13. The method of claim 6 further comprising the step of including, within said formatted data frame:

at least one tail bit,

an erasure indicator bit providing an indication of frame erasure, and

one or more frame mode bits for identifying said first type of traffic channel data.

14. The method of claim 12 wherein said one or more frame mode bits further identify first and second frame rates respectively associated with said first and second types of traffic channel data.

15. The method of claim 13 wherein said one or more frame mode bits further identify a frame rate associated with said first type of traffic channel data.

16. In a communication system, a method for transmitting comprising the steps of:

providing a first data frame including traffic channel data of a first type;

generating a formatted data frame of a predetermined format, said formatted data frame sequentially including

an erasure indicator bit,

a mixed mode bit,

one or more frame mode bits,

a plurality of bits of said traffic channel data of said first type,

one or more frame quality indicator bits, and

one or more tail bits;

encoding said formatted data frame; and

transmitting said encoded formatted data frame.

17. The method of claim 16 further comprising the step of including, within said formatted data frame, a plurality of bits of said traffic channel data of a second type between said plurality of bits of said traffic channel data of said first type and said one or more frame quality indicator bits.

18. The method of claim 16 further comprising the step of including, within said formatted data frame, a reserved bit between said erasure indicator bit and said mixed mode bit.

19. The method of claim 16 wherein said traffic channel data of said first type corresponds to signaling traffic.

20. The method of claim 16 wherein said traffic channel data of said first type corresponds to secondary traffic.

21. The method of claim 18 wherein said traffic channel data of said first type corresponds to signaling traffic.

22. The method of claim 18 wherein said traffic channel data of said first type corresponds to secondary traffic.

23. The method of claim 17 further comprising the step of including, within said formatted data frame, a reserved bit between said erasure indicator bit and said mixed mode bit.

24. The method of claim 17 wherein said traffic channel data of said first type corresponds to primary traffic and wherein said traffic channel data of said second type corresponds to signaling traffic.

25. The method of claim 17 wherein said traffic channel data of said first type corresponds to primary traffic and wherein said traffic channel data of said second type corresponds to secondary traffic.

26. The method of claim 23 wherein said traffic channel data of said first type corresponds to primary traffic and wherein said traffic channel data of said second type corresponds to signaling traffic.

27. The method of claim 23 wherein said traffic channel data of said first type corresponds to primary traffic and wherein said traffic channel data of said second type corresponds to secondary traffic.

28. The method of claim 17 further comprising the step of including, within said formatted data frame, a plurality of bits of traffic channel data of a third type between said plurality of bits of said traffic channel data of said second type and said one or more frame quality indicator bits.

29. The method of claim 23 further comprising the step of including, within said formatted data frame, a plurality of bits of traffic channel data of a third type between said plurality of bits of said traffic channel data of said second type and said one or more frame quality indicator bits.

30. The method of claim 28 wherein said plurality of bits of traffic channel data of said first type correspond to primary traffic, said plurality of bits of traffic channel data of said second type correspond to signaling traffic, and said plurality of bits of traffic channel data of said third type correspond to secondary traffic.

31. The method of claim 29 wherein said plurality of bits of traffic channel data of said first type correspond to primary traffic, said plurality of bits of traffic channel data of said second type correspond to signaling traffic, and said plurality of bits of traffic channel data of said third type correspond to secondary traffic.

32. In a communication system, a method for transmitting comprising the steps of:

providing a first data frame including primary traffic channel data;

generating a formatted data frame of a predetermined format, said formatted data frame sequentially including

an erasure indicator bit,

a mixed mode bit,

a plurality of bits of said primary traffic channel data,

one or more frame quality indicator bits, and

one or more tail bits;

encoding said formatted data frame; and

transmitting said encoded formatted data frame.

33. The method of claim 32 further comprising the step of including, within said formatted data frame, a reserved bit between said erasure indicator bit and said mixed mode bit.

34. A transmitter for use in a communications system, said transmitter comprising:

means for providing a first data frame including traffic channel data of a first type;

means for generating a formatted data frame of a predetermined format using said first data frame, said formatted data frame including at least one frame quality bit;

means for encoding said formatted data frame at an encoding rate based upon a frame rate associated with said first data frame; and

means for transmitting said encoded formatted data frame.

35. The transmitter of claim 34 further including means for inserting at least one tail bit into said formatted data frame.

36. The transmitter of claim 34 further including:

means for providing a second data frame including traffic channel data of a second type, and

means for generating said formatted data frame using both said first and said second data frame.

37. The transmitter of claim 34 wherein said first type of traffic channel data corresponds to primary traffic data.

38. The transmitter of claim 36 wherein said first type of traffic channel data corresponds to primary traffic data, and wherein said second type of traffic channel data corresponds to secondary traffic data.

39. The transmitter of claim 36 wherein said first type of traffic channel data corresponds to primary traffic data, and wherein said second type of traffic channel data corresponds to signaling traffic data.

40. The transmitter of claim 36 further comprising means for including, within said formatted data frame:

at least one tail bit,

an erasure indicator bit providing an indication of frame erasure,

a mixed mode bit indicative of the inclusion of said second type of traffic channel data within said formatted data frame, and

one or more frame mode bits for identifying said first and second types of traffic channel data.

41. The transmitter of claim 34 further comprising means for including, within said formatted data frame:

at least one tail bit,

an erasure indicator bit providing an indication of frame erasure, and

one or more frame mode bits for identifying said first type of traffic channel data.

42. The transmitter of claim 40 wherein said one or more frame mode bits further identify first and second frame rates respectively associated with said first and second types of traffic channel data.

43. The transmitter of claim 41 wherein said one or more frame mode bits further identify a frame rate associated with said first type of traffic channel data.

44. A transmitter for use in a communication system, said transmitter comprising:

means for providing a first data frame including traffic channel data of a first type;

means for generating a formatted data frame of a predetermined format, said formatted data frame sequentially including

an erasure indicator bit,

a mixed mode bit,

one or more frame mode bits,

a plurality of bits of said traffic channel data of said first type,

one or more frame quality indicator bits, and

one or more tail bits;

means for encoding said formatted data frame; and

means for transmitting said encoded formatted data frame.

45. The transmitter of claim 44 further comprising means for including, within said formatted data frame, a plurality of bits of said traffic channel data of a second type between said plurality of bits of said traffic channel data of said first type and said one or more frame quality indicator bits.

46. The transmitter of claim 44 further comprising means for including, within said formatted data frame, a reserved bit between said erasure indicator bit and said mixed mode bit.

47. The transmitter of claim 44 wherein said traffic channel data of said first type corresponds to signaling traffic.

48. The transmitter of claim 44 wherein said traffic channel data of said first type corresponds to secondary traffic.

49. The transmitter of claim 46 wherein said traffic channel data of said first type corresponds to signaling traffic.

50. The transmitter of claim 46 wherein said traffic channel data of said first type corresponds to secondary traffic.

51. The transmitter of claim 45 further comprising means for including, within said formatted data frame, a reserved bit between said erasure indicator bit and said mixed mode bit.

52. The transmitter of claim 45 wherein said traffic channel data of said first type corresponds to primary traffic and wherein said traffic channel data of said second type corresponds to signaling traffic.

53. The transmitter of claim 45 wherein said traffic channel data of said first type corresponds to primary traffic and wherein said traffic channel data of said second type corresponds to secondary traffic.

54. The transmitter of claim 51 wherein said traffic channel data of said first type corresponds to primary traffic and wherein said traffic channel data of said second type corresponds to signaling traffic.

55. The transmitter of claim 51 wherein said traffic channel data of said first type corresponds to primary traffic and wherein said traffic channel data of said second type corresponds to secondary traffic.

56. The transmitter of claim 45 further comprising means for including, within said formatted data frame, a plurality of bits of traffic channel data of a third type between said plurality of bits of said traffic channel data of said second type and said one or more frame quality indicator bits.

57. The transmitter of claim 51 further comprising means for including, within said formatted data frame, a plurality of bits of traffic channel data of a third type between said plurality of bits of said traffic channel data of said second type and said one or more frame quality indicator bits.

58. The transmitter of claim 56 wherein said plurality of bits of traffic channel data of said first type correspond to primary traffic, said plurality of bits of traffic channel data of said second type correspond to signaling traffic, and said plurality of bits of traffic channel data of said third type correspond to secondary traffic.

59. The transmitter of claim 57 wherein said plurality of bits of traffic channel data of said first type correspond to primary traffic, said plurality of bits of traffic channel data of said second type correspond to signaling traffic, and said plurality of bits of traffic channel data of said third type correspond to secondary traffic.

60. In a communication system, a transmitter for transmitting information from a subscriber unit to a base station, said transmitter comprising:

means for providing a first data frame including primary traffic channel data;

means for generating a formatted data frame of a predetermined format, said formatted data frame sequentially including

an erasure indicator bit,

a mixed mode bit,

a plurality of bits of said primary traffic channel data,

one or more frame quality indicator bits, and

one or more tail bits;

means for encoding said formatted data frame; and

means for transmitting said encoded formatted data frame.

61. The transmitter of claim 60 further comprising means for including, within said formatted data frame, a reserved bit between said erasure indicator bit and said mixed mode bit.

62. A system for communicating using formatted data, said system comprising:

a remote unit transmitter including;

means for providing a source of a first of type of traffic bits,

means for providing a first data frame including traffic channel data of a first type,

means for generating a formatted data frame of a predetermined format using said first data frame,

means for encoding said formatted data frame at an encoding rate based upon a frame rate associated with said first data frame, means for transmitting said encoded formatted data frame; and

a base station for receiving said encoded formatted data frame transmitted by said remote unit transmitter.

63. The system of claim 62 wherein said remote unit transmitter further includes means for including, within said formatted data frame, a plurality of bits of said traffic channel data of a second type between said plurality of bits of said traffic channel data of said first type and said one or more frame quality indicator bits.

64. The system of claim 62 wherein said remote unit transmitter further comprises means for including, within said formatted data frame, a reserved bit between said erasure indicator bit and said mixed mode bit.

65. The system of claim 62 wherein said traffic channel data of said first type corresponds to signaling traffic.

66. The system of claim 62 wherein said traffic channel data of said first type corresponds to secondary traffic.

67. The system of claim 64 wherein said traffic channel data of said first type corresponds to signaling traffic.

68. The system of claim 64 wherein said traffic channel data of said first type corresponds to secondary traffic.

69. The system of claim 63 wherein said remote unit transmitter further comprises means for including, within said formatted data frame, a reserved bit between said erasure indicator bit and said mixed mode bit.

70. The system of claim 63 wherein said traffic channel data of said first type corresponds to primary traffic and wherein said traffic channel data of said second type corresponds to signaling traffic.

71. The system of claim 63 wherein said traffic channel data of said first type corresponds to primary traffic and wherein said traffic channel data of said second type corresponds to secondary traffic.

72. The system of claim 69 wherein said traffic channel data of said first type corresponds to primary traffic and wherein said traffic channel data of said second type corresponds to signaling traffic.

73. The system of claim 69 wherein said traffic channel data of said first type corresponds to primary traffic and wherein said traffic channel data of said second type corresponds to secondary traffic.

74. The system of claim 63 wherein said remote unit transmitter further comprises means for including, within said formatted data frame, a plurality of bits of traffic channel data of a third type between said plurality of bits of said traffic channel data of said second type and said one or more frame quality indicator bits.

75. The system of claim 69 wherein said remote unit transmitter further comprises means for including, within said formatted data frame, a plurality of bits of traffic channel data of a third type between said plurality of bits of said traffic channel data of said second type and said one or more frame quality indicator bits.

76. The system of claim 74 wherein said plurality of bits of traffic channel data of said first type correspond to primary traffic, said plurality of bits of traffic channel data of said second type correspond to signaling traffic, and said plurality of bits of traffic channel data of said third type correspond to secondary traffic.

77. The system of claim 75 wherein said plurality of bits of traffic channel data of said first type correspond to primary traffic, said plurality of bits of traffic channel data of said second type correspond to signaling traffic, and said plurality of bits of traffic channel data of said third type correspond to secondary traffic.