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AU591575B2 - Cellular radio system - Google Patents
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AU591575B2 - Cellular radio system - Google Patents

Cellular radio system

Info

Publication number
AU591575B2
AU591575B2 AU76523/87A AU7652387A AU591575B2 AU 591575 B2 AU591575 B2 AU 591575B2 AU 76523/87 A AU76523/87 A AU 76523/87A AU 7652387 A AU7652387 A AU 7652387A AU 591575 B2 AU591575 B2 AU 591575B2
Authority
AU
Australia
Prior art keywords
synchronisation
radio system
cellular radio
adjacent cells
time slot
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.)
Ceased
Application number
AU76523/87A
Other versions
AU7652387A (en
Inventor
Ulrich Langewellpott
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.)
Alcatel Lucent NV
Original Assignee
Alcatel NV
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 Alcatel NV filed Critical Alcatel NV
Publication of AU7652387A publication Critical patent/AU7652387A/en
Application granted granted Critical
Publication of AU591575B2 publication Critical patent/AU591575B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • 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)
  • Radio Relay Systems (AREA)
  • Noise Elimination (AREA)
  • Time-Division Multiplex Systems (AREA)

Abstract

A digital cellular radio system and a receiver therefor are described in which the message transmission occurs in time-division multiplex with multiple access. In each time slot, a synchronisation preamble and an information part are transmitted which is band-spread by means of an orthogonal character set. To suppress common-channel interference which occurs due to the use of the same time slot and the same carrier frequency in adjacent cells, different synchronisation preambles are used in adjacent cells. Furthermore, a pseudo-random noise sequence is superimposed on the information part which can be formed from the synchronisation preamble used in each case. <IMAGE>
AU76523/87A 1986-08-14 1987-08-03 Cellular radio system Ceased AU591575B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP19860111249 EP0257110B1 (en) 1986-08-14 1986-08-14 Digital cellular system
EP86111249 1986-08-14

Publications (2)

Publication Number Publication Date
AU7652387A AU7652387A (en) 1988-02-18
AU591575B2 true AU591575B2 (en) 1989-12-07

Family

ID=8195343

Family Applications (1)

Application Number Title Priority Date Filing Date
AU76523/87A Ceased AU591575B2 (en) 1986-08-14 1987-08-03 Cellular radio system

Country Status (4)

Country Link
EP (1) EP0257110B1 (en)
AT (1) ATE75892T1 (en)
AU (1) AU591575B2 (en)
DE (1) DE3685216D1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ232224A (en) * 1989-01-27 1993-03-26 British Telecomm Alternate burst communication for cordless phones: bursts contain synchronisation information
FI925472L (en) * 1992-12-01 1994-06-02 Nokia Mobile Phones Ltd Data transfer method and system
JPH0754991B2 (en) * 1993-01-21 1995-06-07 日本電気株式会社 Digital mobile radio communication system
FI933129A0 (en) * 1993-07-08 1993-07-08 Nokia Mobile Phones Ltd DATAOEVERFOERINGSFOERFARANDE FOER ETT DIGITALT CELLULAERT MOBILTELEFONSYSTEM OCH ETT DIGITALT CELLULAERT MOBILTELEFONSYSTEM
FI96154C (en) * 1994-05-30 1996-05-10 Nokia Telecommunications Oy Method for synchronizing subscriber terminals, base station and subscriber terminal
US6259724B1 (en) 1996-10-18 2001-07-10 Telefonaktiebolaget L M Ericsson (Publ) Random access in a mobile telecommunications system
GB2320651B (en) 1996-12-23 2001-09-26 Ericsson Telefon Ab L M Telecommunications systems
GB2320650B (en) 1996-12-23 2001-09-26 Ericsson Telefon Ab L M Telecommunications systems
US6373899B1 (en) * 1997-06-30 2002-04-16 Spacenet, Inc. Combined preamble detection and information method for burst-type digital communication system
US6643275B1 (en) 1998-05-15 2003-11-04 Telefonaktiebolaget Lm Ericsson (Publ) Random access in a mobile telecommunications system
DE19836888A1 (en) * 1998-08-14 2000-02-24 Krone Ag Method and device for a duplex capable radio transmission system with code division multiple access synchronizes with TDD operations, a control centre radio base station and numerous subscriber stations independent of each other.
EP1094615A3 (en) * 1999-10-20 2004-02-25 Alcatel Method and transmitter unit for synchronisation in a CDMA system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2125654A (en) * 1982-08-13 1984-03-07 Hazeltine Corp Intranetwork code division multiple access communication system
EP0151280A1 (en) * 1984-02-03 1985-08-14 Licentia Patent-Verwaltungs-GmbH Time division multiplex method for a digital cellular radio system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2125654A (en) * 1982-08-13 1984-03-07 Hazeltine Corp Intranetwork code division multiple access communication system
EP0151280A1 (en) * 1984-02-03 1985-08-14 Licentia Patent-Verwaltungs-GmbH Time division multiplex method for a digital cellular radio system

Also Published As

Publication number Publication date
DE3685216D1 (en) 1992-06-11
EP0257110B1 (en) 1992-05-06
ATE75892T1 (en) 1992-05-15
EP0257110A1 (en) 1988-03-02
AU7652387A (en) 1988-02-18

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Legal Events

Date Code Title Description
MK14 Patent ceased section 143(a) (annual fees not paid) or expired