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Method and apparatus for encoding and decoding a turbo code in an integrated modem system

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H03M-013/03
출원번호 US-0223473 (1998-12-30)
발명자 / 주소
  • Karen J. Stephen
  • Hon W. Lam
  • Jonathan Cromwell
출원인 / 주소
  • International Business Machines Corporation
대리인 / 주소
    Blakely, Sokoloff, Taylor & Zafman LLP
인용정보 피인용 횟수 : 89  인용 특허 : 8

초록

The present invention is a method and apparatus for encoding and decoding a turbo code. In the encoder, an interleaver interleaves and delays a block of input bits to generate interleaved input bits and delayed input bits. A first encoder generates a first, second, and third encoded bits. A second e

대표청구항

1. An apparatus comprising:an interleaver to interleave and delay a block of input bits, the interleaver generating interleaved input bits and delayed input bits; a serial-to-parallel converter coupled to the interleaver to pair consecutive bits of one of the interleaved and delayed input bits; a fi

이 특허에 인용된 특허 (8)

  1. McCallister Ronald D. ; Cochran Bruce A. ; Liebetreu John M., Data communication system and method therefor.
  2. Divsalar Dariush ; Pollara Fabrizio, Hybrid concatenated codes and iterative decoding.
  3. Bahr Randall Kent ; Orcutt Edward Kerry, Method and apparatus for encoding and decoding binary information using restricted coded modulation and parallel concatenated convolution codes.
  4. Hladik Stephen Michael ; Anderson John Bailey, Parallel concatenated tail-biting convolutional code and decoder therefor.
  5. Vanderaar Mark J., Pragmatic encoder and method therefor.
  6. Hladik Stephen Michael ; Check William Alan ; Glinsman Brian James ; Fleming ; III Robert Fleming, Satellite communications system utilizing parallel concatenated coding.
  7. Herzberg Hanan, System for coding system.
  8. Rhines Don S. (Richardson TX) McCoy William D. (Wylie TX) Handley Kirk H. (Redwood City CA), Triple orthogonally interleaed error correction system.

이 특허를 인용한 특허 (89)

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  8. Zhidkov, Sergey; Rhee, Do-jun, Decoding apparatus for digital communications and method for using the same.
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  30. Jaffe, Steven T.; Cameron, Kelly B., Interspersed training for turbo coded modulation.
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  36. Eidson, Donald Brian; Krieger, Abraham; Murali, Ramaswamy, Iterative decoder employing multiple external code error checks to lower the error floor.
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  39. Bossen,Frank Jan, Method and apparatus for arithmetic coding and termination.
  40. Chugg, Keith Michael; Gray, Paul Kingsley, Method and apparatus for communications using improved turbo like codes.
  41. Tran,Hau Thien; Cameron,Kelly B.; Shen,Ba Zhong; Jones,Christopher R., Method and apparatus for performing calculations for forward (alpha) and reverse (beta) metrics in a map decoder.
  42. Cameron, Kelly B., Method and apparatus for soft-in soft-out turbo code decoder.
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  54. Gutcher, Brian K.; Venkatachalam, Kripa, Methods, apparatus, and systems for updating loglikelihood ratio information in an nT implementation of a Viterbi decoder.
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  74. Xu, Shuzhan J., Sliding window turbo decoder.
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  78. Cameron,Kelly Brian, TTCM decoder design.
  79. Karaoguz,Jeyhan, Trellis coded modulation tails.
  80. Shen, Ba-Zhong; Cameron, Kelly Brian; Tran, Hau Thien, True bit level decoding of TTCM (turbo trellis code modulation) of variable rates and signal constellations.
  81. Shen, Ba-Zhong; Cameron, Kelly Brian; Tran, Hau Thien, True bit level decoding of TTCM (turbo trellis coded modulation) of variable rates and signal constellations.
  82. Van Stralen,Nick Andrew; Hladik,Stephen Michael; Itani,Abdallah Mahmoud; Wodnicki,Robert Gideon; Ross,John Anderson Fergus, Turbo decoder control for use with a programmable interleaver, variable block length, and multiple code rates.
  83. Galili, Patrick; Capella, Laurent, Turbo decoder input reordering.
  84. Lu,Jin; Chun,Joon Hwa; Hokenek,Erdem; Moudgill,Mayan, Turbo decoder using parallel processing.
  85. Hladik, Stephen Michael; Itani, Abdallah Mahmoud; Van Stralen, Nick Andrew; Wodnicki, Robert Gideon; Ross, John Anderson Fergus, Turbo decoder with modified input for increased code word length and data rate.
  86. Garrett, David; Xu, Bing, Turbo decoder with reduced-size branch metric cache.
  87. Yamamoto,Yukio; Mazawa,Shiro; Inoue,Takao, Turbo decoder, turbo encoder and radio base station with turbo decoder and turbo encoder.
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