JPH08508866A - Tdma無線システムにおけるソフト誤り補正 - Google Patents
Tdma無線システムにおけるソフト誤り補正Info
- Publication number
- JPH08508866A JPH08508866A JP7516137A JP51613795A JPH08508866A JP H08508866 A JPH08508866 A JP H08508866A JP 7516137 A JP7516137 A JP 7516137A JP 51613795 A JP51613795 A JP 51613795A JP H08508866 A JPH08508866 A JP H08508866A
- Authority
- JP
- Japan
- Prior art keywords
- quality
- function
- frame
- value
- interpolation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000012937 correction Methods 0.000 title claims description 7
- 238000000034 method Methods 0.000 claims abstract description 48
- 238000012886 linear function Methods 0.000 claims 8
- 238000005259 measurement Methods 0.000 abstract description 23
- 230000000873 masking effect Effects 0.000 abstract description 9
- 238000001514 detection method Methods 0.000 abstract description 7
- 230000001413 cellular effect Effects 0.000 abstract description 6
- 238000007796 conventional method Methods 0.000 abstract 1
- 238000004364 calculation method Methods 0.000 description 6
- 230000001537 neural effect Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000013528 artificial neural network Methods 0.000 description 2
- 238000005562 fading Methods 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 102100040006 Annexin A1 Human genes 0.000 description 1
- 206010013952 Dysphonia Diseases 0.000 description 1
- 101000959738 Homo sapiens Annexin A1 Proteins 0.000 description 1
- 101000929342 Lytechinus pictus Actin, cytoskeletal 1 Proteins 0.000 description 1
- 238000007476 Maximum Likelihood Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
- H04L1/201—Frame classification, e.g. bad, good or erased
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
- Multimedia (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Health & Medical Sciences (AREA)
- Computational Linguistics (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Error Detection And Correction (AREA)
- Time-Division Multiplex Systems (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Relay Systems (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.現音声フレームの補間パラメータを判断することによりTDMAシステム における前記現音声フレームの品質を改善する方法において、 品質値と前記現音声フレームに対して選択したパラメータ値とを決定するステ ップと、 品質値と少なくとも一つの第1の前音声フレームに対して選択したパラメータ 値とを決定するステップと、 少なくとも前記品質値と前記現音声フレーム及び前記第1の前音声フレームか ら選択したパラメータ値とを利用する補間関数を用いて、前記現音声フレームの 補間パラメータを計算するステップと を含むことを特徴とする現音声フレームの品質を改善する方法。 2.更に、品質値と少なくとも一つの他の前音声フレームに対する選択したパ ラメータ値とを決定するステップを含むことを特徴とする請求項1記載の現音声 フレームの品質を改善する方法。 3.前記補間関数は線形関数であることを特徴とする請求項1記載の現音声フ レームの品質を改善する方法。 4.前記線形補間関数は前記品質値の関数である少なくとも一つの重み付けを 含むことを特徴とする請求項3記載の現音声フレームの品質を改善する方法。 5.前記重み付けは、ルックアップ・テーブルにより実行されるステップ関数 から計算されることを特徴とする請求項4記載の現音声フレームの品質を改善す る方法。 6.前記補間関数は非線形関数であることを特徴とする請求項1記載の現音声 フレームの品質を改善する方法。 7.前記非線形関数は、前記前音声フレームの前記パラメータ値及び品質値の 関数である少なくとも一つの重み付けを含むことを特徴とする請求項6記載の現 音声フレームの品質を改善する方法。 8.前記補間関数は再構築値に関連して用いられることを特徴とする請求項1 記載の現音声フレームの品質を改善する方法。 9.前記補間関数はコード・ワードに関連して用いられることを特徴とする請 求項1記載の現音声フレームの品質を改善する方法。 10. 複数のパラメータ値及び異なる複数補間関数を利用されることを特徴と する請求項1記載の現音声フレームの品質を改善する方法。 11. TDMA信号を受信する無線システムにおいて、 チャネルに符号化されている信号を受信する手段と、 前記受信機により受信された前記信号を復調する手段と、 復調された前記信号のチャネルを音声フレームに復号する手段と、 前記音声フレームに含まれる情報を補正する手段であって、品質値と現音声フ レームに対して選択したパラメータ値とを決定する手段、品質値と少なくとも一 つの第1の前音声フレームに対して選択したパラメータ値とを決定する手段、並 びに少なくとも前記品質値と前記現音声フレーム及び前記第1の前音声フレーム から選択したパラメータ値とを利用する補間関数を用いて、前記前音声フレーム の補間パラメータを計算する手段を含む、前記補正する手段と、 前記誤りの補正手段により計算された補間値に従って前記音声フレームを復号 する手段と、 前記復号された音声フレームに従って前記を再生する手段と を含む無線システム。 12. 更に、品質値及び少なくとも一つの他の前音声フレームに対して選択し たパラメータ値を決定する手段を含むことを特徴とする請求項11記載の無線シ ステム。 13. 前記補間関数は線形関数であることを特徴とする請求項11記載の無線 システム。 14. 前記線形関数は前記品質値の関数である少なくとも一つの重み付けを含 むことを特徴とする請求項13記載の無線システム。 15. 前記重み付けはルックアップ・テーブルにより実行されるステップ関数 から計算されることを特徴とする請求項14記載の無線システム。 16. 前記補間関数は非線形関数であることを特徴とする請求項11記載の無 線システム。 17. 前記非線形関数は前記前音声フレームの前記パラメータ値及び品質値の 関数である少なくとも一つの重み付けを含むことを特徴とする請求項16記載の 無線システム。 18. 前記補間関数は再構築値に関連して用いられることを特徴とする請求項 11記載の無線システム。 19. 前記補間関数は再構築値に関連して用いられることを特徴とする請求項 11記載の無線システム。 20. 複数のパラメータ及び異なる複数補間関数を利用することを特徴とする 請求項11記載の無線システム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/162,605 US5502713A (en) | 1993-12-07 | 1993-12-07 | Soft error concealment in a TDMA radio system |
US162,605 | 1993-12-07 | ||
PCT/SE1994/001157 WO1995016315A1 (en) | 1993-12-07 | 1994-12-01 | Soft error correction in a tdma radio system |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007002867A Division JP4199281B2 (ja) | 1993-12-07 | 2007-01-10 | Tdma無線システムにおけるソフト誤り補正 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH08508866A true JPH08508866A (ja) | 1996-09-17 |
JP3943127B2 JP3943127B2 (ja) | 2007-07-11 |
Family
ID=22586362
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP51613795A Expired - Lifetime JP3943127B2 (ja) | 1993-12-07 | 1994-12-01 | Tdma無線システムにおけるソフト誤り補正 |
JP2007002867A Expired - Lifetime JP4199281B2 (ja) | 1993-12-07 | 2007-01-10 | Tdma無線システムにおけるソフト誤り補正 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007002867A Expired - Lifetime JP4199281B2 (ja) | 1993-12-07 | 2007-01-10 | Tdma無線システムにおけるソフト誤り補正 |
Country Status (13)
Country | Link |
---|---|
US (1) | US5502713A (ja) |
EP (1) | EP0682831A1 (ja) |
JP (2) | JP3943127B2 (ja) |
KR (1) | KR100344513B1 (ja) |
CN (1) | CN1153399C (ja) |
AU (1) | AU678667B2 (ja) |
CA (1) | CA2154253A1 (ja) |
FI (1) | FI953707A0 (ja) |
MY (1) | MY112120A (ja) |
RU (1) | RU2130693C1 (ja) |
SG (1) | SG49995A1 (ja) |
TW (1) | TW269081B (ja) |
WO (1) | WO1995016315A1 (ja) |
Families Citing this family (47)
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SE501340C2 (sv) * | 1993-06-11 | 1995-01-23 | Ericsson Telefon Ab L M | Döljande av transmissionsfel i en talavkodare |
FI96259C (fi) * | 1994-03-28 | 1996-05-27 | Nokia Telecommunications Oy | Dekoodausmenetelmä |
US5768291A (en) * | 1994-12-29 | 1998-06-16 | Motorola, Inc. | Method and apparatus for error mitigating a received communication signal |
US5726978A (en) * | 1995-06-22 | 1998-03-10 | Telefonaktiebolaget L M Ericsson Publ. | Adaptive channel allocation in a frequency division multiplexed system |
US5862190A (en) * | 1995-12-29 | 1999-01-19 | Motorola, Inc. | Method and apparatus for decoding an encoded signal |
FI100566B (fi) * | 1996-01-24 | 1997-12-31 | Nokia Telecommunications Oy | Kehyksen laadun tunnistamismenetelmä ja vastaanotin |
SE506341C2 (sv) * | 1996-04-10 | 1997-12-08 | Ericsson Telefon Ab L M | Metod och anordning för rekonstruktion av en mottagen talsignal |
JP3340618B2 (ja) * | 1996-04-19 | 2002-11-05 | 松下電器産業株式会社 | 誤り検出方法 |
US5960010A (en) * | 1996-05-03 | 1999-09-28 | Texas Instruments Incorporated | Error detection and error concealment of convolutionally encoded data |
WO1997043835A1 (en) * | 1996-05-15 | 1997-11-20 | Seagate Technology, Inc. | Read error recovery utilizing ecc and read channel quality indicators |
US5802076A (en) * | 1996-05-24 | 1998-09-01 | National Semiconductor Corporation | Audio error mitigation technique for a TDMA communication system |
FR2751813B1 (fr) * | 1996-07-29 | 1999-01-08 | Alcatel Mobile Comm France | Procede et dispositif d'estimation de la nature acceptable ou non acceptable de blocs d'information recus via un systeme de transmission utilisant un codage par blocs |
DE19716147A1 (de) * | 1997-04-17 | 1998-10-22 | Alsthom Cge Alcatel | Verfahren und Vorrichtung zur Fehlerverdeckung in digitalen Übertragungssystemen |
SE511310C2 (sv) * | 1997-05-20 | 1999-09-06 | Ericsson Telefon Ab L M | Förfarande för bitdetektering i ett radiokommunikationssystem |
US5936972A (en) * | 1997-06-18 | 1999-08-10 | Motorola, Inc. | Syndrome-based channel quality or message structure determiner |
FI103235B1 (fi) * | 1997-06-26 | 1999-05-14 | Nokia Telecommunications Oy | Häiriönpoistomenetelmä OFDM-radiovastaanottimessa |
US6252731B1 (en) | 1997-10-16 | 2001-06-26 | Seagate Technology Llc | Parametric optimization using disc drive read channel quality measurements |
JP3177957B2 (ja) * | 1998-01-28 | 2001-06-18 | 日本電気株式会社 | 誤り訂正を含む復調回路 |
US6810377B1 (en) * | 1998-06-19 | 2004-10-26 | Comsat Corporation | Lost frame recovery techniques for parametric, LPC-based speech coding systems |
US6392833B1 (en) | 1998-07-13 | 2002-05-21 | Seagate Technology, Llc | Reducing self-excited mechanical resonances in a disc drive |
US6188980B1 (en) * | 1998-08-24 | 2001-02-13 | Conexant Systems, Inc. | Synchronized encoder-decoder frame concealment using speech coding parameters including line spectral frequencies and filter coefficients |
US6256487B1 (en) | 1998-09-01 | 2001-07-03 | Telefonaktiebolaget Lm Ericsson (Publ) | Multiple mode transmitter using multiple speech/channel coding modes wherein the coding mode is conveyed to the receiver with the transmitted signal |
US6366624B1 (en) * | 1998-11-30 | 2002-04-02 | Ericsson Inc. | Systems and methods for receiving a modulated signal containing encoded and unencoded bits using multi-pass demodulation |
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FR2797125B1 (fr) * | 1999-07-26 | 2001-10-05 | Matra Nortel Communications | Procede et dispositif de formation de trames de transport a partir de trames de signal code, et dispositif d'extraction des trames de signal code |
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US6732321B2 (en) * | 2001-03-27 | 2004-05-04 | Motorola, Inc. | Method, apparatus, and article of manufacture for error detection and channel management in a communication system |
US7209712B2 (en) * | 2002-09-23 | 2007-04-24 | Qualcomm, Incorporated | Mean square estimation of channel quality measure |
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KR100862662B1 (ko) * | 2006-11-28 | 2008-10-10 | 삼성전자주식회사 | 프레임 오류 은닉 방법 및 장치, 이를 이용한 오디오 신호복호화 방법 및 장치 |
EP2071852A1 (en) | 2007-12-11 | 2009-06-17 | Alcatel Lucent | Process for delivering a video stream over a wireless bidirectional channel between a video encoder and a video decoder |
ATE526787T1 (de) * | 2007-12-11 | 2011-10-15 | Alcatel Lucent | Verfahren zum zustellen eines videostroms über einen drahtlosen kanal |
KR20140067512A (ko) * | 2012-11-26 | 2014-06-05 | 삼성전자주식회사 | 신호 처리 장치 및 그 신호 처리 방법 |
US9336789B2 (en) | 2013-02-21 | 2016-05-10 | Qualcomm Incorporated | Systems and methods for determining an interpolation factor set for synthesizing a speech signal |
EP2830065A1 (en) | 2013-07-22 | 2015-01-28 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for decoding an encoded audio signal using a cross-over filter around a transition frequency |
CN111224677B (zh) * | 2018-11-27 | 2021-10-15 | 华为技术有限公司 | 编码方法、译码方法及装置 |
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JPS61102841A (ja) * | 1984-10-24 | 1986-05-21 | Nec Corp | 回線品質監視装置 |
GB2182529A (en) * | 1985-10-30 | 1987-05-13 | Philips Electronic Associated | Digital communication of analogue signals |
JPH02299324A (ja) * | 1989-05-15 | 1990-12-11 | Mitsubishi Electric Corp | 音声符号化装置 |
JP2591242B2 (ja) * | 1990-04-02 | 1997-03-19 | 松下電器産業株式会社 | 誤り検出方法 |
JP3102015B2 (ja) * | 1990-05-28 | 2000-10-23 | 日本電気株式会社 | 音声復号化方法 |
JP2748743B2 (ja) * | 1991-10-01 | 1998-05-13 | 日本電気株式会社 | データ受信方式 |
-
1993
- 1993-12-07 US US08/162,605 patent/US5502713A/en not_active Expired - Lifetime
-
1994
- 1994-11-15 TW TW083110550A patent/TW269081B/zh active
- 1994-11-29 MY MYPI94003185A patent/MY112120A/en unknown
- 1994-12-01 KR KR1019950703250A patent/KR100344513B1/ko not_active IP Right Cessation
- 1994-12-01 CA CA002154253A patent/CA2154253A1/en not_active Abandoned
- 1994-12-01 EP EP95903481A patent/EP0682831A1/en not_active Withdrawn
- 1994-12-01 AU AU12518/95A patent/AU678667B2/en not_active Expired
- 1994-12-01 WO PCT/SE1994/001157 patent/WO1995016315A1/en not_active Application Discontinuation
- 1994-12-01 CN CNB941914046A patent/CN1153399C/zh not_active Expired - Lifetime
- 1994-12-01 JP JP51613795A patent/JP3943127B2/ja not_active Expired - Lifetime
- 1994-12-01 RU RU95120398A patent/RU2130693C1/ru active
- 1994-12-01 SG SG1996012113A patent/SG49995A1/en unknown
-
1995
- 1995-08-03 FI FI953707A patent/FI953707A0/fi unknown
-
2007
- 2007-01-10 JP JP2007002867A patent/JP4199281B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
AU1251895A (en) | 1995-06-27 |
WO1995016315A1 (en) | 1995-06-15 |
MY112120A (en) | 2001-04-30 |
AU678667B2 (en) | 1997-06-05 |
SG49995A1 (en) | 1998-06-15 |
US5502713A (en) | 1996-03-26 |
KR100344513B1 (ko) | 2002-12-06 |
JP2007166650A (ja) | 2007-06-28 |
CN1119058A (zh) | 1996-03-20 |
FI953707A (fi) | 1995-08-03 |
EP0682831A1 (en) | 1995-11-22 |
CA2154253A1 (en) | 1995-06-15 |
KR960701536A (ko) | 1996-02-24 |
TW269081B (ja) | 1996-01-21 |
FI953707A0 (fi) | 1995-08-03 |
CN1153399C (zh) | 2004-06-09 |
RU2130693C1 (ru) | 1999-05-20 |
JP4199281B2 (ja) | 2008-12-17 |
JP3943127B2 (ja) | 2007-07-11 |
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