MX9605118A - Detecccion de cuadro dañado. - Google Patents

Detecccion de cuadro dañado.

Info

Publication number
MX9605118A
MX9605118A MX9605118A MX9605118A MX9605118A MX 9605118 A MX9605118 A MX 9605118A MX 9605118 A MX9605118 A MX 9605118A MX 9605118 A MX9605118 A MX 9605118A MX 9605118 A MX9605118 A MX 9605118A
Authority
MX
Mexico
Prior art keywords
received
interleaved
bad
frame detection
bits
Prior art date
Application number
MX9605118A
Other languages
English (en)
Inventor
Karim Jamal
Fredrik Jansson
Original Assignee
Ericsson Telefon Ab L M
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from SE9401462A external-priority patent/SE502244C2/sv
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of MX9605118A publication Critical patent/MX9605118A/es

Links

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
    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0057—Block codes
    • 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
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0071—Use of interleaving
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03178—Arrangements involving sequence estimation techniques

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Power Engineering (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Error Detection And Correction (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

En un sistema de comunicacion de radio digital en donde la informacion es transmitida y recibida en intervalos de tiempo y algunos bits de cada cuadro de audio recibido se intercala a través de por lo menos dos intervalos de tiempo y otros bits en cada cuadro de audio no se intercalan, los cuadros de audio dañados recibidos se detectan detectando (110) los errores de bit posibles en una secuencia de bit no intercalada codificada en canal en cada intervalo de tiempo recibido. Si los errores de bit se han detectado en esta secuencia de bit, se indica un cuadro dañado recibido.
MX9605118A 1994-04-28 1995-04-19 Detecccion de cuadro dañado. MX9605118A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9401462A SE502244C2 (sv) 1993-06-11 1994-04-28 Sätt och anordning för avkodning av ljudsignaler i ett system för mobilradiokommunikation
SE9403386A SE504396C2 (sv) 1994-04-28 1994-10-06 Detektering av felaktigt mottagna dataramar i ett kommunikationssystem
PCT/SE1995/000423 WO1995030282A1 (en) 1994-04-28 1995-04-19 Bad frame detection

Publications (1)

Publication Number Publication Date
MX9605118A true MX9605118A (es) 1997-12-31

Family

ID=26662044

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9605118A MX9605118A (es) 1994-04-28 1995-04-19 Detecccion de cuadro dañado.

Country Status (13)

Country Link
US (1) US5901186A (es)
EP (1) EP0758502B1 (es)
JP (1) JPH09512679A (es)
KR (1) KR100301100B1 (es)
CN (1) CN1147320A (es)
AU (1) AU689893B2 (es)
BR (1) BR9507565A (es)
CA (1) CA2188122A1 (es)
DE (1) DE69518837T2 (es)
FI (1) FI964309A (es)
MX (1) MX9605118A (es)
SE (1) SE504396C2 (es)
WO (1) WO1995030282A1 (es)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI100566B (fi) * 1996-01-24 1997-12-31 Nokia Telecommunications Oy Kehyksen laadun tunnistamismenetelmä ja vastaanotin
JP3340618B2 (ja) * 1996-04-19 2002-11-05 松下電器産業株式会社 誤り検出方法
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
FI116181B (fi) * 1997-02-07 2005-09-30 Nokia Corp Virheenkorjausta ja virheentunnistusta hyödyntävä informaationkoodausm enetelmä ja laitteet
DE19706749C1 (de) * 1997-02-20 1998-08-13 Siemens Ag Verfahren und Einrichtung zur Erkennung von Funkblöcken mit Übertragungsfehlern in einem Funk-Kommunikationssystem
DE59806449D1 (de) * 1997-02-27 2003-01-09 Siemens Ag Verfahren und anordnung zur rahmenfehlerdetektion zwecks fehlerverdeckung insbesondere bei gsm übertragungen
DE19716147A1 (de) * 1997-04-17 1998-10-22 Alsthom Cge Alcatel Verfahren und Vorrichtung zur Fehlerverdeckung in digitalen Übertragungssystemen
WO1999050990A1 (en) * 1998-03-30 1999-10-07 Telefonaktiebolaget Lm Ericsson (Publ) An interleaving scheme for blocks in a packet switched system
FI105734B (fi) * 1998-07-03 2000-09-29 Nokia Networks Oy Automaattinen uudelleenlähetys
GB2343778B (en) * 1998-11-13 2003-03-05 Motorola Ltd Processing received data in a distributed speech recognition process
US6298084B1 (en) * 1998-11-24 2001-10-02 Motorola, Inc. Bad frame detector and turbo decoder
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
JP2000201086A (ja) * 1999-01-07 2000-07-18 Sony Corp デ―タ受信装置およびデ―タ受信方法
DE19921504A1 (de) * 1999-05-10 2000-11-23 Alcatel Sa Verfahren und Schaltungsanordnung zur Ermittlung einer Qualitätsinformation über die Übertragungsqualität eines Sprachsignals in einem digitalen Übertragungssystem
US7124193B1 (en) * 2000-08-24 2006-10-17 At&T Corp. Method of using link adaptation and power control for streaming services in wireless networks
US7069495B2 (en) 2000-10-30 2006-06-27 Telefonaktiebolaget Lm Ericsson (Publ) Bit error resilience for an internet protocol stack
US20020181407A1 (en) * 2001-03-28 2002-12-05 Anders Khullar Link quality control by using time dispersion information
GB0115728D0 (en) * 2001-06-28 2001-08-22 Astrium Ltd Improvements relating to data packet error detection
US7127663B2 (en) * 2003-08-28 2006-10-24 Qualcomm Incorporate Bad frame indicator for radio-telephone receivers in GSM mobile systems
GB2412278B (en) * 2004-03-16 2006-06-14 Motorola Inc Method and apparatus for classifying importance of encoded frames in a digital communications system
CN100418144C (zh) * 2004-04-13 2008-09-10 建兴电子科技股份有限公司 具有置放角度感测功能的电子装置及选择操作模式的方法
FI20045318A0 (fi) * 2004-09-01 2004-09-01 Nokia Corp Kommunikointijärjestelmä, vastaanotin, ja menetelmä arvioida vastaanotetun signaalin laatua
US7434117B1 (en) * 2005-10-28 2008-10-07 Mediatek Inc. Method and apparatus of determining bad frame indication for speech service in a wireless communication system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4541091A (en) * 1982-06-11 1985-09-10 Hitachi, Ltd. Code error detection and correction method and apparatus
CA1265250A (en) * 1985-03-04 1990-01-30 Alan Douglas Clark Data transmission
JPS6333028A (ja) * 1986-07-26 1988-02-12 Nec Corp 信号検出方式
US5220568A (en) * 1988-05-31 1993-06-15 Eastman Kodak Company Shift correcting code for channel encoded data
US5113400A (en) * 1990-11-21 1992-05-12 Motorola, Inc. Error detection system
US5255343A (en) * 1992-06-26 1993-10-19 Northern Telecom Limited Method for detecting and masking bad frames in coded speech signals

Also Published As

Publication number Publication date
AU689893B2 (en) 1998-04-09
CN1147320A (zh) 1997-04-09
EP0758502A1 (en) 1997-02-19
KR100301100B1 (ko) 2001-10-26
EP0758502B1 (en) 2000-09-13
SE9403386L (sv) 1995-10-29
WO1995030282A1 (en) 1995-11-09
DE69518837D1 (de) 2000-10-19
JPH09512679A (ja) 1997-12-16
DE69518837T2 (de) 2001-01-11
AU2422295A (en) 1995-11-29
SE9403386D0 (sv) 1994-10-06
CA2188122A1 (en) 1995-11-09
US5901186A (en) 1999-05-04
SE504396C2 (sv) 1997-01-27
FI964309A0 (fi) 1996-10-25
FI964309A (fi) 1996-12-18
BR9507565A (pt) 1997-08-05

Similar Documents

Publication Publication Date Title
MX9605118A (es) Detecccion de cuadro dañado.
TW343410B (en) Method and apparatus for detecting communication signals having unequal error protection
US4757536A (en) Method and apparatus for transceiving cryptographically encoded digital data
US4821260A (en) Transmission system
SE9303942L (sv) Feldetekteringssystem
CA2234721A1 (en) Simplifying decoding of codewords in a wireless communication system
EP0936772A3 (en) Unequal error protection for perceptual audio coders
MY110069A (en) Bidirectional demodulation method and apparatus
EP0800287A3 (en) A transmission system for digital audio broadcasting
ES2101296T3 (es) Proteccion contra errores en un codificador de sub-banda.
CA2253518A1 (en) Digital data transmission method, digital data transmission device and digital data receiving device
AU1155900A (en) Error concealment in a video signal
CA2268827A1 (en) Method for multiplexing of parallel information streams in a cdma system
MX9702008A (es) Transmision de señal de control en radiotelefonia digital.
JPH09506491A (ja) 移動通信システムにおいてスピーチ送信する方法及び装置
CA2117560A1 (en) Error Detector Circuit for Receiver Operative to Receive Discretely-Encoded Signals
US5732356A (en) Method and an arrangement for sound reconstruction during erasures
US5123014A (en) Data link with an imbedded channel
WO1997047105A1 (en) Data framing format for digital radio communications and method of forming same
EP0651523A3 (en) Communication receiver using soft decision to discriminate between a traffic channel frame and a fast associated control channel frame
EP0612456B1 (en) Transmission system for coded speech signals and/or voiceband data
CA2256355C (en) Error detection method and apparatus for digital communication data packets
HK1034399A1 (en) Source coding signal elements that distributes bits representing the signal elements across multiplebitstreams to provide robust error recovery
JP3144072B2 (ja) 同期検出装置および同期検出保護方法
CA2308220A1 (en) Apparatus and method for partial buffering transmitted data to provide robust error recovery in a lossy transmission environment