DE69722489T2 - Zellulares Funksystem mit Gleichwellen-Übertragung von verzögerungseinstellbaren Abwärtssignalen zu Mobilstationen durch angrenzende Basisstationen - Google Patents

Zellulares Funksystem mit Gleichwellen-Übertragung von verzögerungseinstellbaren Abwärtssignalen zu Mobilstationen durch angrenzende Basisstationen

Info

Publication number
DE69722489T2
DE69722489T2 DE69722489T DE69722489T DE69722489T2 DE 69722489 T2 DE69722489 T2 DE 69722489T2 DE 69722489 T DE69722489 T DE 69722489T DE 69722489 T DE69722489 T DE 69722489T DE 69722489 T2 DE69722489 T2 DE 69722489T2
Authority
DE
Germany
Prior art keywords
delay
radio system
wave transmission
cellular radio
adjacent base
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 - Fee Related
Application number
DE69722489T
Other languages
English (en)
Other versions
DE69722489D1 (de
Inventor
Yuzo Kurokami
Makoto Anzai
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Publication of DE69722489D1 publication Critical patent/DE69722489D1/de
Application granted granted Critical
Publication of DE69722489T2 publication Critical patent/DE69722489T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0667—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal
    • H04B7/0671—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of delayed versions of same signal using different delays between antennas

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
DE69722489T 1996-03-14 1997-03-13 Zellulares Funksystem mit Gleichwellen-Übertragung von verzögerungseinstellbaren Abwärtssignalen zu Mobilstationen durch angrenzende Basisstationen Expired - Fee Related DE69722489T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8057837A JP2809179B2 (ja) 1996-03-14 1996-03-14 無線同報通信システム

Publications (2)

Publication Number Publication Date
DE69722489D1 DE69722489D1 (de) 2003-07-10
DE69722489T2 true DE69722489T2 (de) 2003-12-18

Family

ID=13067081

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69722489T Expired - Fee Related DE69722489T2 (de) 1996-03-14 1997-03-13 Zellulares Funksystem mit Gleichwellen-Übertragung von verzögerungseinstellbaren Abwärtssignalen zu Mobilstationen durch angrenzende Basisstationen

Country Status (6)

Country Link
US (1) US5905718A (de)
EP (1) EP0795970B1 (de)
JP (1) JP2809179B2 (de)
AU (1) AU711362B2 (de)
CA (1) CA2199922C (de)
DE (1) DE69722489T2 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5761605A (en) 1996-10-11 1998-06-02 Northpoint Technology, Ltd. Apparatus and method for reusing satellite broadcast spectrum for terrestrially broadcast signals
FR2764467B1 (fr) * 1997-06-09 1999-07-30 Alsthom Cge Alcatel Transmission du canal d'informations pilotes de chaque operateur dans un systeme de radiocommunication avec des stations mobiles
FI107097B (fi) * 1997-09-24 2001-05-31 Nokia Networks Oy Kohdistettu yleislähetys radioverkossa
US6314082B1 (en) * 1997-11-17 2001-11-06 Telefonaktiebolaget Lm Ericsson (Publ) Broadcast network selection techniques for radiocommunication systems
JP3348196B2 (ja) * 1998-03-06 2002-11-20 独立行政法人通信総合研究所 無線伝送システム
FI112135B (fi) * 1998-03-31 2003-10-31 Nokia Corp Menetelmä viiveen säätämiseksi
US6519262B1 (en) * 1998-06-10 2003-02-11 Trw Inc. Time division multiplex approach for multiple transmitter broadcasting
CA2243680A1 (en) * 1998-07-22 2000-01-22 Newbridge Networks Corporation Cell stream replicating device
JP3022530B1 (ja) 1998-12-07 2000-03-21 日本電気株式会社 Ｃｄｍａ無線通信システムにおけるマルチキャスト通信方式
US7319686B1 (en) * 1999-03-18 2008-01-15 Industrial Technology Research Institute Frame synchronization in multi-cell systems with a data interface
US7139324B1 (en) 2000-06-02 2006-11-21 Nokia Networks Oy Closed loop feedback system for improved down link performance
US7284050B1 (en) 2001-03-26 2007-10-16 Cisco Technology, Inc. Method and system for a voice multicast hardware accelerator
EP1276268B1 (de) * 2001-07-13 2006-10-18 Mitsubishi Electric Information Technology Centre Europe B.V. Mehrbenutzerdetektion in einem MC-CDMA Nachrichtensystem
KR100648609B1 (ko) * 2004-01-28 2006-11-23 가부시키가이샤 엔.티.티.도코모 무선 제어 장치 및 이동 통신 제어 방법
JP2007096943A (ja) * 2005-09-29 2007-04-12 Oki Electric Ind Co Ltd 移動体通信装置
EP2590343B1 (de) * 2009-03-12 2017-12-27 Alcatel Lucent Antennensynchronisierung für kohärentes netzwerk-mimo
US9401784B2 (en) * 2009-10-21 2016-07-26 Qualcomm Incorporated Time and frequency acquisition and tracking for OFDMA wireless systems
US9585121B2 (en) 2012-01-05 2017-02-28 Motorola Solutions, Inc. Method and apparatus for simulcasting within a communication system

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55120244A (en) * 1979-03-08 1980-09-16 Nec Corp Phase supervisory system
US4696052A (en) * 1985-12-31 1987-09-22 Motorola Inc. Simulcast transmitter apparatus having automatic synchronization capability
US4718108A (en) * 1986-05-19 1988-01-05 Motorola, Inc. Improved multiple site communication system
SE460449B (sv) * 1988-02-29 1989-10-09 Ericsson Telefon Ab L M Cellindelat digitalt mobilradiosystem och foerfarande foer att oeverfoera information i ett digitalt cellindelat mobilradiosystem
LU87840A1 (fr) * 1990-05-04 1991-05-07 Siemens Ag Passives optisches telekommunikationssystem
US5241545A (en) * 1990-11-14 1993-08-31 Motorola, Inc. Apparatus and method for recovering a time-varying signal using multiple sampling points
US5297169A (en) * 1991-06-28 1994-03-22 Telefonaktiebolaget L M Ericsson Equalizer training in a radiotelephone system
CA2076099A1 (en) * 1991-09-03 1993-03-04 Howard Leroy Lester Automatic simulcast alignment
JPH06502980A (ja) * 1991-09-24 1994-03-31 モトローラ・インコーポレイテッド 共通の無線バックボーンを利用するセルラ無線システム
ES2149782T3 (es) * 1992-01-10 2000-11-16 Nec Corp Sistema de buscapersonas por radio de transmision simultanea.
CA2094771A1 (en) * 1992-04-28 1993-10-29 Paulus George Maria De Bot Transmitter network with a single transmitter frequency
US5414734A (en) * 1993-01-06 1995-05-09 Glenayre Electronics, Inc. Compensation for multi-path interference using pilot symbols
US5361398A (en) * 1993-01-29 1994-11-01 Motorola, Inc. Method and apparatus for transmission path delay measurements using adaptive demodulation
DE4304095B4 (de) * 1993-02-11 2005-08-25 Philips Intellectual Property & Standards Gmbh Mobilfunksystem
JP2872012B2 (ja) * 1993-09-28 1999-03-17 日本電気株式会社 チャンネル選択方式及びデータ受信装置
KR100383685B1 (ko) * 1994-06-28 2003-07-12 코닌클리케 필립스 일렉트로닉스 엔.브이. 시분할다중접속디지털전송시스템및그시스템용스테이션
US5651010A (en) * 1995-03-16 1997-07-22 Bell Atlantic Network Services, Inc. Simultaneous overlapping broadcasting of digital programs
US5598413A (en) * 1995-07-10 1997-01-28 Adtran, Inc. Four-wire, half-rate architecture with embedded differential delay compensation for extending range of basic rate ISDN communications
US5570372A (en) * 1995-11-08 1996-10-29 Siemens Rolm Communications Inc. Multimedia communications with system-dependent adaptive delays

Also Published As

Publication number Publication date
JPH09252278A (ja) 1997-09-22
EP0795970B1 (de) 2003-06-04
CA2199922A1 (en) 1997-09-14
DE69722489D1 (de) 2003-07-10
JP2809179B2 (ja) 1998-10-08
AU711362B2 (en) 1999-10-14
AU1630097A (en) 1997-09-18
US5905718A (en) 1999-05-18
EP0795970A2 (de) 1997-09-17
EP0795970A3 (de) 2000-09-06
CA2199922C (en) 2001-05-01

Similar Documents

Publication Publication Date Title
DE69722489T2 (de) Zellulares Funksystem mit Gleichwellen-Übertragung von verzögerungseinstellbaren Abwärtssignalen zu Mobilstationen durch angrenzende Basisstationen
EP0113662A3 (en) Cellular mobile radio service telephone system
NO175759C (no) Mobil radiotelefon
NO990978D0 (no) Multimodus mobilstasjon til st°tte av kommunikasjonsdrift i cellulµre telekommunikasjonssystemer
DE19781710T1 (de) Anrufaufbau-Verfahren in einem digitalen zellularen Funkkommunikationssystem
ATA911897A (de) Mobiltelephon-station
DE69219251T2 (de) Kombiniertes mobiles Funkkommunikationssystem
DE69430616T2 (de) Mobilfunkkommunikationssystem für in Sektoren aufgeteilte Funkzonen
DE69328892T2 (de) Zellulares Mobilfunksystem
FI101582B1 (fi) Solukkoradiopuhelin-viestiliikennejärjestelmä
FI970663A0 (fi) Solukkomatkaviestinjärjestelmä
DE69731908D1 (de) Intermittierender Empfang von Rufsignalen in einem mobilen Kommunikationssystem
EP0617522A3 (de) Kommunikationssystem zum Anschluss an eine Basisstation eines mehrzellularen, drahtlosen Fernsprechsystems.
DE69429029D1 (de) Mobiles Funk-Kommunikations-System
DE69433611D1 (de) Mobiles Funkkommunikationssystem
DE69833251D1 (de) Trägerrückgewinnung in empfängern für digitalen tonrundfunksignale
RU97101093A (ru) Способ и устройство для аналоговой мобильной системы телефонной связи
DE69842071D1 (de) Signalübertragungsverfahren und Basisstation für mobile Kommunikation
FI990998A (fi) Olemassa olevaa puhelininfrastruktuuria käyttävä dynaaminen ryhmäradio
DE69606718T2 (de) Mobilverbindungssystem für ein funkkommunikationssystem mit diversityempfang von selektiven aufwärtssignalen
FR2702904B1 (fr) Systeme de radiocommunication numerique bidirectionnel multiporteuse, station mobile et station de base correspondantes.
DE59610453D1 (de) Schaltanordnung für mobile Rundfunkempfänger
DE69322299D1 (de) Digitaler Mobilfunkempfänger
DE59309040D1 (de) Zellulares Mobilfunksystem mit Teilzellen
DE69331191D1 (de) Anrufverfahren für mobile Funktelefone

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee