FR1508602A - Système de communication digitale adaptatif - Google Patents

Système de communication digitale adaptatif

Info

Publication number
FR1508602A
FR1508602A FR8289A FR06008289A FR1508602A FR 1508602 A FR1508602 A FR 1508602A FR 8289 A FR8289 A FR 8289A FR 06008289 A FR06008289 A FR 06008289A FR 1508602 A FR1508602 A FR 1508602A
Authority
FR
France
Prior art keywords
communication system
digital communication
adaptive digital
adaptive
digital
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.)
Expired
Application number
FR8289A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of FR1508602A publication Critical patent/FR1508602A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/07—Synchronising arrangements using pulse stuffing for systems with different or fluctuating information rates or bit rates
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • H04J3/1605—Fixed allocated frame structures
    • H04J3/1623—Plesiochronous digital hierarchy [PDH]
    • H04J3/1647—Subrate or multislot multiplexing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • H04J3/1682—Allocation of channels according to the instantaneous demands of the users, e.g. concentrated multiplexers, statistical multiplexers
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
    • H04L1/0017—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy where the mode-switching is based on Quality of Service requirement
    • 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
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0025—Transmission of mode-switching indication
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • 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
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0052—Realisations of complexity reduction techniques, e.g. pipelining or use of look-up tables
    • 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
    • H04L2001/0098—Unequal error protection

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Communication Control (AREA)
FR8289A 1966-04-15 1967-01-11 Système de communication digitale adaptatif Expired FR1508602A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US54293466A 1966-04-15 1966-04-15
US54293566A 1966-04-15 1966-04-15

Publications (1)

Publication Number Publication Date
FR1508602A true FR1508602A (fr) 1968-01-05

Family

ID=27067183

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8289A Expired FR1508602A (fr) 1966-04-15 1967-01-11 Système de communication digitale adaptatif

Country Status (4)

Country Link
US (1) US3534264A (fr)
DE (1) DE1462732C3 (fr)
FR (1) FR1508602A (fr)
GB (1) GB1110450A (fr)

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US3879580A (en) * 1972-11-24 1975-04-22 Hughes Aircraft Co Data terminal for use with TDMA processing repeater
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US4112412A (en) * 1974-12-09 1978-09-05 Texaco Inc. Digital seismic telemetry system
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US4229623A (en) * 1978-03-03 1980-10-21 Looschen Floyd W Receiving means for use in a high speed, low noise digital data communication system
US4229621A (en) * 1978-03-03 1980-10-21 Looschen Floyd W Transmitting means for use in a high speed, low noise digital data communication system
US4225752A (en) * 1978-03-03 1980-09-30 Burroughs Corporation High speed, low noise digital data communication system
US4229815A (en) * 1978-11-20 1980-10-21 Bell Telephone Laboratories, Incorporated Full duplex bit synchronous data rate buffer
US4309764A (en) * 1979-06-22 1982-01-05 Bell Telephone Laboratories, Incorporated Technique for increasing the rain margin of a satellite communication system
US4309771A (en) * 1979-07-02 1982-01-05 Farinon Corporation Digital radio transmission system
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US4495619A (en) * 1981-10-23 1985-01-22 At&T Bell Laboratories Transmitter and receivers using resource sharing and coding for increased capacity
DE3311030A1 (de) * 1983-03-25 1984-09-27 Siemens AG, 1000 Berlin und 8000 München Verfahren und schaltungsanordnung zum uebertragen von datensignalen zwischen teilnehmerstellen eines datennetzes
US4756007A (en) * 1984-03-08 1988-07-05 Codex Corporation Adaptive communication rate modem
DE3409781A1 (de) * 1984-03-16 1985-09-19 Siemens AG, 1000 Berlin und 8000 München Verfahren zum umsteuern der uebertragungsgeschwindigkeit in einem mit zwei voneinander verschiedenen uebertragungsgeschwindigkeiten betreibbaren datenuebertragungssystem
JPS60208134A (ja) * 1984-04-02 1985-10-19 Nec Corp 無線通信方式
US4841526A (en) * 1984-05-25 1989-06-20 Wilson Jon C Data communications system
US4675863A (en) 1985-03-20 1987-06-23 International Mobile Machines Corp. Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
JPH0618358B2 (ja) * 1985-04-09 1994-03-09 沖電気工業株式会社 誤り制御符号化方式
US4763357A (en) * 1985-04-18 1988-08-09 Barr William S Method and apparatus for providing secure electronic communications
JPH06103876B2 (ja) * 1986-06-23 1994-12-14 日本電気株式会社 オ−トマテイツク・フオ−ルバツクおよびリストア方式
US4780883A (en) * 1986-06-26 1988-10-25 Racal Data Communications Inc. Data modem with adaptive synchronized speed change
US4748625A (en) * 1986-07-28 1988-05-31 Motorola, Inc. Optimum baud rate transmission system
US5289459A (en) * 1986-12-01 1994-02-22 British Telecommunications Plc Duplex data transmission
US5031179A (en) * 1987-11-10 1991-07-09 Canon Kabushiki Kaisha Data communication apparatus
US4901319A (en) * 1988-03-18 1990-02-13 General Electric Company Transmission system with adaptive interleaving
US5007047A (en) * 1988-12-02 1991-04-09 Codex Corporation Adaptive rate control for echo cancelling modem
JPH0626343B2 (ja) * 1988-12-16 1994-04-06 日本電気株式会社 変復調装置のデータ伝送速度自動切替方式
JP2841460B2 (ja) * 1989-04-20 1998-12-24 ソニー株式会社 画像データの伝送方法、送信装置、受信装置及び送受信装置
US5163051A (en) * 1990-02-02 1992-11-10 Telecom Analysis Systems Inc. Paired bit error rate tester
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US5123033A (en) * 1990-09-27 1992-06-16 At&T Bell Laboratories Extraction of an exact symbol rate as applied to bandwidth compression of modem signals through demodulation and remodulation
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US5253270A (en) * 1991-07-08 1993-10-12 Hal Communications Apparatus useful in radio communication of digital data using minimal bandwidth
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US5546383A (en) 1993-09-30 1996-08-13 Cooley; David M. Modularly clustered radiotelephone system
JP3179957B2 (ja) * 1994-02-28 2001-06-25 富士通株式会社 マルチメディア通信における受信装置及び受信信号出力方法
KR100381880B1 (ko) * 1994-06-20 2003-08-02 소니 가부시끼 가이샤 통신시스템,기지국,이동국및무선통신시스템
US5761223A (en) * 1994-07-21 1998-06-02 Matsushita Electric Industrial Co., Ltd. Error correcting device
US5914959A (en) * 1996-10-31 1999-06-22 Glenayre Electronics, Inc. Digital communications system having an automatically selectable transmission rate
US6332009B2 (en) * 1997-09-03 2001-12-18 Conexant Systems, Inc. Method and apparatus for generating a line impairment learning signal for a data communication system
US9118387B2 (en) 1997-11-03 2015-08-25 Qualcomm Incorporated Pilot reference transmission for a wireless communication system
US7184426B2 (en) 2002-12-12 2007-02-27 Qualcomm, Incorporated Method and apparatus for burst pilot for a time division multiplex system
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US6067646A (en) * 1998-04-17 2000-05-23 Ameritech Corporation Method and system for adaptive interleaving
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US8064409B1 (en) 1999-08-25 2011-11-22 Qualcomm Incorporated Method and apparatus using a multi-carrier forward link in a wireless communication system
US6621804B1 (en) 1999-10-07 2003-09-16 Qualcomm Incorporated Method and apparatus for predicting favored supplemental channel transmission slots using transmission power measurements of a fundamental channel
US7068683B1 (en) 2000-10-25 2006-06-27 Qualcomm, Incorporated Method and apparatus for high rate packet data and low delay data transmissions
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US7433433B2 (en) * 2003-11-13 2008-10-07 Telefonaktiebolaget L M Ericsson (Publ) Channel estimation by adaptive interpolation
RU2420885C2 (ru) * 2009-07-28 2011-06-10 Государственное образовательное учреждение высшего профессионального образования "Новочеркасское высшее военное командное училище связи (военный институт) имени Маршала Советского Союза В.Д. Соколовского" Адаптивное приемопередающее устройство защищенной радиосвязи
US8811200B2 (en) 2009-09-22 2014-08-19 Qualcomm Incorporated Physical layer metrics to support adaptive station-dependent channel state information feedback rate in multi-user communication systems
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Family Cites Families (1)

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Publication number Priority date Publication date Assignee Title
US3331071A (en) * 1965-12-23 1967-07-11 James E Webb Satellite communication system

Also Published As

Publication number Publication date
US3534264A (en) 1970-10-13
GB1110450A (en) 1968-04-18
DE1462732C3 (de) 1974-01-03
DE1462732A1 (de) 1969-01-02
DE1462732B2 (de) 1973-06-14

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