KR100243213B1 - 제로상태평가량을이용한비터비복호데이터의품질평가장치 - Google Patents
제로상태평가량을이용한비터비복호데이터의품질평가장치 Download PDFInfo
- Publication number
- KR100243213B1 KR100243213B1 KR1019970024723A KR19970024723A KR100243213B1 KR 100243213 B1 KR100243213 B1 KR 100243213B1 KR 1019970024723 A KR1019970024723 A KR 1019970024723A KR 19970024723 A KR19970024723 A KR 19970024723A KR 100243213 B1 KR100243213 B1 KR 100243213B1
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- South Korea
- Prior art keywords
- evaluation
- evaluation amount
- data
- zero state
- state evaluation
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/37—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
- H03M13/39—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes
- H03M13/41—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/65—Purpose and implementation aspects
- H03M13/6569—Implementation on processors, e.g. DSPs, or software implementations
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/35—Unequal or adaptive error protection, e.g. by providing a different level of protection according to significance of source information or by adapting the coding according to the change of transmission channel characteristics
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/37—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
- H03M13/39—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes
- H03M13/41—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors
- H03M13/4107—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors implementing add, compare, select [ACS] operations
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/37—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
- H03M13/39—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes
- H03M13/41—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors
- H03M13/413—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors tail biting Viterbi decoding
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- Physics & Mathematics (AREA)
- Probability & Statistics with Applications (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Error Detection And Correction (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Maintenance And Management Of Digital Transmission (AREA)
Abstract
Description
| 종류전송률 | IS-95 CDMA 셀룰러 | PCS(J-STD-008) | |
| FULL | 9600 bps | 9600 bps | 14400 bps |
| HALF | 4800 bps | 4800 bps | 7200 bps |
| QUARTER | 2400 bps | 2400 bps | 3600 bps |
| 1/8 | 1200 bps | 1200 bps | 1800 bps |
| 비고 | RATE SET1 | RATE SET2 |
Claims (1)
- 인코더 테일비트를 사용하는 길쌈부호를 사용하는 시스템에서 비터비 복호기의 복호 데이터의 품질을 평가하기 위한 장치에 있어서,입력되는 복조 데이터에 대하여 4가지의 가정된 전송율(FULL, HALF, QUARTER 1/8 레이트)에 대한 지로평가량을 계산하기 위한 지로평가부;상기 지로평가량을 입력하여, 트랙리스 경로에 따라 각 상태에 도달하는 지로평가량과 하기 상태평가량 저장부에 저장된 그 지로가 시작된 상태의 상태평가량을 누적 연산하여 새로운 상태평가량을 산출하고, 산출된 상태평가량을 비교하여 적은 쪽의 경로를 선택하여, 상기 가정된 전송율에 대한 각각의 제로상태 평가량을 출력하는 가산/비교/선택부;상기 가산/비교/선택부에서 출력되는 상기 새로운 상태평가량을 저장하는 상태평가량 저장부;상기 가산/비교/선택부에서 출력되는 상기 가정된 전송율에 대한 각각의 제로상태 평가량을 저장하는 레지스터; 및상기 레지스터에 저장된 제로상태 평가량을 리드하고, 각각의 전송율에 대한 제로상태 평가량을 비교하여, 제로상태 평가량이 최저값에 해당하는 전송율을 실제 전송율로 결정하는 비터비 복호 데이터의 품질평가수단을 포함하는 제로상태 평가량을 이용한 비터비 복호 데이터의 품질평가장치.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019970024723A KR100243213B1 (ko) | 1997-06-14 | 1997-06-14 | 제로상태평가량을이용한비터비복호데이터의품질평가장치 |
| EP97310408A EP0884852B1 (en) | 1997-06-14 | 1997-12-22 | Quality calculator for viterbi-decoded data using zerostate metrics |
| DE69733468T DE69733468T2 (de) | 1997-06-14 | 1997-12-22 | Rechner für Viterbi-dekodierte Daten mit zerostate metric hoher Qualität |
| US09/000,839 US6029268A (en) | 1997-06-14 | 1997-12-30 | Quality calculator apparatus for use with Viterbi-decoded data using zero-state metrics |
| CA002226487A CA2226487C (en) | 1997-06-14 | 1998-01-07 | Quality calculator for viterbi-decoded data using zero-state metrics |
| CNB981036341A CN1167201C (zh) | 1997-06-14 | 1998-01-07 | 使用零状态度量值的维特比解码数据质量计算装置 |
| JP06736298A JP3248715B2 (ja) | 1997-06-14 | 1998-03-17 | ゼロ状態評価量を用いたビタービ復号データの品質評価装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019970024723A KR100243213B1 (ko) | 1997-06-14 | 1997-06-14 | 제로상태평가량을이용한비터비복호데이터의품질평가장치 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19990001410A KR19990001410A (ko) | 1999-01-15 |
| KR100243213B1 true KR100243213B1 (ko) | 2000-02-01 |
Family
ID=19509578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019970024723A Expired - Fee Related KR100243213B1 (ko) | 1997-06-14 | 1997-06-14 | 제로상태평가량을이용한비터비복호데이터의품질평가장치 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6029268A (ko) |
| EP (1) | EP0884852B1 (ko) |
| JP (1) | JP3248715B2 (ko) |
| KR (1) | KR100243213B1 (ko) |
| CN (1) | CN1167201C (ko) |
| CA (1) | CA2226487C (ko) |
| DE (1) | DE69733468T2 (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100526564B1 (ko) * | 1999-04-23 | 2005-11-04 | 삼성전자주식회사 | 비터비 복호기에서의 초기 상태평가량 설정장치 |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3202658B2 (ja) * | 1997-06-20 | 2001-08-27 | 日本電気株式会社 | 可変レートcdma送信電力制御方式 |
| US6205186B1 (en) * | 1997-09-03 | 2001-03-20 | Qualcomm Incorporated | Decoding with partial state information on a convolutionally encoded channel |
| US6112325A (en) * | 1998-01-23 | 2000-08-29 | Dspc Technologies, Ltd. | Method and device for detecting rate |
| FR2786636B1 (fr) * | 1998-11-26 | 2001-05-04 | Cit Alcatel | Procede de reception de signaux, notamment de signaux de signalisation |
| RU2209518C2 (ru) * | 2000-11-23 | 2003-07-27 | Корпорация "Самсунг-Электроникс" | Способ определения скорости передачи данных (варианты) и устройство для его реализации (варианты) |
| RU2248671C2 (ru) * | 2000-12-25 | 2005-03-20 | Корпорация "Самсунг Электроникс" | Способ и устройство определения скорости передачи данных |
| JP3815543B2 (ja) * | 2000-12-27 | 2006-08-30 | 日本電気株式会社 | 記録状態検出装置およびこれを備えた情報記録再生装置 |
| KR100433908B1 (ko) * | 2001-10-29 | 2004-06-04 | 삼성전자주식회사 | 통신시스템의 오류 검출 정보 송수신 장치 및 방법 |
| US7730381B2 (en) * | 2004-06-09 | 2010-06-01 | Qualcomm Incorporated | Erasure detection and power control for a transport channel with unknown format in a wireless communication system |
| US8074158B2 (en) | 2005-02-02 | 2011-12-06 | Qualcomm Incorporated | Erasure detection for a transport channel with an unknown format |
| JP2007195076A (ja) * | 2006-01-20 | 2007-08-02 | Nec Corp | 無線通信システムとその送信電力制御方法および装置 |
| US8739009B1 (en) * | 2007-12-27 | 2014-05-27 | Marvell International Ltd. | Methods and apparatus for defect detection and correction via iterative decoding algorithms |
| US9118480B2 (en) | 2013-02-11 | 2015-08-25 | Telefonaktiebolaget Lm Ericsson (Publ) | Frame quality estimation during viterbi decoding |
| CN108347714A (zh) * | 2018-04-02 | 2018-07-31 | 西安交通大学 | 一种利用软件无线电平台实现d2d通信的方法 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4527279A (en) * | 1982-07-12 | 1985-07-02 | Kokusai Denshin Denwa Co. | Synchronization circuit for a Viterbi decoder |
| EP0388163B1 (en) * | 1989-03-15 | 1995-12-27 | Nec Corporation | Interference detection apparatus for use in digital mobile communications system |
| US5390198A (en) * | 1993-05-26 | 1995-02-14 | The Boeing Company | Soft decision viterbi decoder for M-ary convolutional codes |
| ZA947317B (en) * | 1993-09-24 | 1995-05-10 | Qualcomm Inc | Multirate serial viterbi decoder for code division multiple access system applications |
| CN1082292C (zh) * | 1994-02-16 | 2002-04-03 | 东芝株式会社 | 采样相位同步装置及所用的双向最大似然序列估计方式 |
| JP2605641B2 (ja) * | 1994-11-14 | 1997-04-30 | 日本電気株式会社 | 可変ビットレート判別方法及び装置 |
| US5784392A (en) * | 1995-06-26 | 1998-07-21 | Nokia Mobile Phones Ltd. | Viterbi decoder with l=2 best decoding paths |
| CN1099165C (zh) * | 1996-03-18 | 2003-01-15 | 三星电子株式会社 | 维特比译码器 |
| US5878098A (en) * | 1996-06-27 | 1999-03-02 | Motorola, Inc. | Method and apparatus for rate determination in a communication system |
-
1997
- 1997-06-14 KR KR1019970024723A patent/KR100243213B1/ko not_active Expired - Fee Related
- 1997-12-22 EP EP97310408A patent/EP0884852B1/en not_active Expired - Lifetime
- 1997-12-22 DE DE69733468T patent/DE69733468T2/de not_active Expired - Lifetime
- 1997-12-30 US US09/000,839 patent/US6029268A/en not_active Expired - Lifetime
-
1998
- 1998-01-07 CA CA002226487A patent/CA2226487C/en not_active Expired - Fee Related
- 1998-01-07 CN CNB981036341A patent/CN1167201C/zh not_active Expired - Fee Related
- 1998-03-17 JP JP06736298A patent/JP3248715B2/ja not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100526564B1 (ko) * | 1999-04-23 | 2005-11-04 | 삼성전자주식회사 | 비터비 복호기에서의 초기 상태평가량 설정장치 |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2226487C (en) | 2002-02-19 |
| EP0884852A3 (en) | 1999-03-17 |
| EP0884852B1 (en) | 2005-06-08 |
| DE69733468T2 (de) | 2006-03-23 |
| EP0884852A2 (en) | 1998-12-16 |
| US6029268A (en) | 2000-02-22 |
| JP3248715B2 (ja) | 2002-01-21 |
| CN1202766A (zh) | 1998-12-23 |
| JPH1117558A (ja) | 1999-01-22 |
| CN1167201C (zh) | 2004-09-15 |
| KR19990001410A (ko) | 1999-01-15 |
| DE69733468D1 (de) | 2005-07-14 |
| CA2226487A1 (en) | 1998-12-14 |
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