ZA957744B - Digital telephony - Google Patents

Digital telephony

Info

Publication number
ZA957744B
ZA957744B ZA957744A ZA957744A ZA957744B ZA 957744 B ZA957744 B ZA 957744B ZA 957744 A ZA957744 A ZA 957744A ZA 957744 A ZA957744 A ZA 957744A ZA 957744 B ZA957744 B ZA 957744B
Authority
ZA
South Africa
Prior art keywords
pct
subscriber unit
base station
date
transmission time
Prior art date
Application number
ZA957744A
Other languages
English (en)
Inventor
Richard John Albrow
Simon Alexander Black
Leigh Carter
Rupert Leslie Alexand Goodings
Paul Maxwell Martin
Neil Philip Piercy
Original Assignee
Ionica Int Ltd
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 Ionica Int Ltd filed Critical Ionica Int Ltd
Publication of ZA957744B publication Critical patent/ZA957744B/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0682—Clock or time synchronisation in a network by delay compensation, e.g. by compensation of propagation delay or variations thereof, by ranging
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2662—Arrangements for Wireless System Synchronisation
    • H04B7/2671—Arrangements for Wireless Time-Division Multiple Access [TDMA] System Synchronisation
    • H04B7/2678—Time synchronisation
    • H04B7/2681—Synchronisation of a mobile station with one base station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/003—Arrangements to increase tolerance to errors in transmission or reception timing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/0055—Synchronisation arrangements determining timing error of reception due to propagation delay
    • H04W56/0065—Synchronisation arrangements determining timing error of reception due to propagation delay using measurement of signal travel time
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Transmitters (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Selective Calling Equipment (AREA)
ZA957744A 1994-09-16 1995-09-14 Digital telephony ZA957744B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9418749A GB9418749D0 (en) 1994-09-16 1994-09-16 Digital telephony

Publications (1)

Publication Number Publication Date
ZA957744B true ZA957744B (en) 1996-05-06

Family

ID=10761482

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA957744A ZA957744B (en) 1994-09-16 1995-09-14 Digital telephony

Country Status (14)

Country Link
US (1) US5987023A (de)
EP (1) EP0782795B1 (de)
JP (1) JPH10505970A (de)
AT (1) ATE174736T1 (de)
AU (1) AU3478095A (de)
BR (1) BR9508944A (de)
DE (1) DE69506726T2 (de)
ES (1) ES2129848T3 (de)
FI (1) FI971089A7 (de)
GB (1) GB9418749D0 (de)
IL (1) IL115142A0 (de)
MX (1) MX9702009A (de)
WO (1) WO1996008885A2 (de)
ZA (1) ZA957744B (de)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
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CA2206624A1 (en) * 1996-06-10 1997-12-10 Krzysztof Duch Method of establishing a spatially normalized communication path in a networked communications system
US5898929A (en) * 1996-08-30 1999-04-27 Telefonaktiebolaget L/M Ericsson (Publ) Method and apparatus for synchronizing private radio systems
US6205157B1 (en) * 1996-11-01 2001-03-20 Telefonaktiebolaget L M Ericsson (Publ) Method for propagation delay control
US6061741A (en) * 1997-05-28 2000-05-09 International Business Machines Corporation Method and apparatus for synchronization of connectionless applications across a network by using simple encryption tokens
DE19731205A1 (de) * 1997-07-21 1999-01-28 Siemens Ag Verfahren und Funk-Kommunikationssystem zur Informationsübertragung mittels ATM-Zellen
DE19733118C2 (de) * 1997-07-31 1999-07-08 Siemens Ag Verfahren und Vorrichtung zur Steuerung des Empfangs von Datenpaketen in einer Mobilstation
DE19808371C2 (de) * 1998-02-27 2001-12-13 Siemens Ag Verfahren und Funk-Kommunikationssystem zur Informationsübertragung zwischen einer Basisstation und weiteren Funkstationen
JP3881770B2 (ja) * 1998-03-10 2007-02-14 松下電器産業株式会社 移動局装置および通信方法
GB9805860D0 (en) 1998-03-20 1998-05-13 Philips Electronics Nv Timing control of transmission time slot
US6385208B1 (en) * 1998-06-02 2002-05-07 Cisco Technology, Inc. Serial media independent interface
US5953345A (en) 1998-06-02 1999-09-14 Cisco Technology, Inc. Reduced pin-count 10Base-T MAC to transceiver interface
US7031333B1 (en) * 1998-06-02 2006-04-18 Cisco Technology, Inc. Reduced pin count media independent interface
GB2347828B (en) 1999-03-05 2004-05-19 Internat Mobile Satellite Orga Communication methods and apparatus
JP3658234B2 (ja) * 1999-03-17 2005-06-08 富士通株式会社 無線電話システムにおける遅延補正システム
EP1701449B1 (de) * 1999-05-10 2008-01-16 NTT DoCoMo INC. Verschachtelungsverfahren, Sender und Sendesignal
US6680955B1 (en) * 1999-08-20 2004-01-20 Nokia Networks Oy Technique for compressing a header field in a data packet
DE10009401C2 (de) * 2000-02-28 2003-07-24 Siemens Ag Verfahren, Mobilfunksystem und Station zur Ermittlung einer Vorhaltezeit für eine Verbindung zwischen zwei Stationen
CN1276595C (zh) * 2000-08-30 2006-09-20 松下电器产业株式会社 数据传送装置、无线电通信系统及无线电通信方法
US7321557B1 (en) * 2000-10-30 2008-01-22 Lucent Technologies Inc. Dynamic latency assignment methodology for bandwidth optimization of packet flows
KR100464375B1 (ko) * 2001-02-21 2005-01-13 삼성전자주식회사 역방향 동기 전송을 위한 부호분할다중접속 통신시스템의 기지국 송신 시간 조정 방법
KR100392645B1 (ko) * 2001-06-07 2003-07-25 에스케이 텔레콤주식회사 역방향 동기 전송을 위한 이동 통신 단말기의 전송 타이밍제어 방법
EP1331746A4 (de) * 2001-07-18 2009-04-15 Panasonic Corp Datenübertragungsvorrichtung und datenübertragungsverfahren
KR100418909B1 (ko) * 2001-12-21 2004-02-14 엘지전자 주식회사 프레임의 전송 타이밍 조절 방법
US6822969B2 (en) 2003-04-03 2004-11-23 Motorola, Inc. Method and apparatus for scheduling asynchronous transmissions
US7535931B1 (en) * 2003-07-14 2009-05-19 Symmetricom, Inc. Two-way timing protocol
EP1826940B1 (de) 2005-01-12 2012-11-28 Panasonic Corporation Drahtloses nachrichtenübertragungsverfahren, basisstation und mobile station
US7558242B1 (en) * 2005-03-28 2009-07-07 Hazenson Michael Boris Method of building flexible and effective transmission systems for two-way communications
US7574224B2 (en) 2005-06-13 2009-08-11 Qualcomm Incorporated Methods and apparatus for performing timing synchronization with base stations
US8964734B2 (en) 2007-07-26 2015-02-24 The Directv Group, Inc. Method and system for communicating content having modified packet headers through a satellite
US9564988B2 (en) * 2007-07-26 2017-02-07 The Directv Group, Inc. Method and system for forming a formatted content stream and using a cyclic redundancy check
GB2452288A (en) * 2007-08-29 2009-03-04 Nokia Siemens Networks Oy Timing of wireless transmissions using a common channel
US8886205B2 (en) 2009-03-02 2014-11-11 Qualcomm Incorporated Timing adjustment for synchronous operation in a wireless network
JP5423505B2 (ja) * 2010-03-17 2014-02-19 富士通株式会社 無線基地局及び通信方法
US8972577B2 (en) 2010-09-02 2015-03-03 International Business Machines Corporation Masterless slot allocation
US9106527B1 (en) 2010-12-22 2015-08-11 Juniper Networks, Inc. Hierarchical resource groups for providing segregated management access to a distributed switch

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5836034A (ja) * 1981-08-28 1983-03-02 Nippon Telegr & Teleph Corp <Ntt> 初期アクジシヨン方法
EP0522636B1 (de) * 1991-07-08 1998-07-01 Koninklijke Philips Electronics N.V. Kommunikationsprotokoll für Haupt- und bewegliche Stationen mit Zeitschlitzverwendung zur Packetdatenübertragung
FR2695777B1 (fr) * 1992-09-15 1994-10-14 Alcatel Radiotelephone Procédé de transmission d'une information d'avance temporelle à un mobile évoluant dans des cellules d'un réseau GSM à BTS asynchrones.
US5586119A (en) * 1994-08-31 1996-12-17 Motorola, Inc. Method and apparatus for packet alignment in a communication system

Also Published As

Publication number Publication date
WO1996008885A2 (en) 1996-03-21
AU3478095A (en) 1996-03-29
MX9702009A (es) 1998-04-30
FI971089A0 (fi) 1997-03-14
ATE174736T1 (de) 1999-01-15
ES2129848T3 (es) 1999-06-16
US5987023A (en) 1999-11-16
JPH10505970A (ja) 1998-06-09
IL115142A0 (en) 1995-12-31
WO1996008885A3 (en) 1996-04-18
EP0782795A2 (de) 1997-07-09
HK1001151A1 (en) 1998-05-29
BR9508944A (pt) 1998-11-03
FI971089A7 (fi) 1997-03-14
GB9418749D0 (en) 1994-11-02
EP0782795B1 (de) 1998-12-16
DE69506726T2 (de) 1999-08-19
DE69506726D1 (de) 1999-01-28

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