SE9702404L - Sätt och system i ett cellbaserat nät - Google Patents

Sätt och system i ett cellbaserat nät

Info

Publication number
SE9702404L
SE9702404L SE9702404A SE9702404A SE9702404L SE 9702404 L SE9702404 L SE 9702404L SE 9702404 A SE9702404 A SE 9702404A SE 9702404 A SE9702404 A SE 9702404A SE 9702404 L SE9702404 L SE 9702404L
Authority
SE
Sweden
Prior art keywords
radio base
base station
time reference
reference signal
channel radio
Prior art date
Application number
SE9702404A
Other languages
English (en)
Other versions
SE9702404D0 (sv
SE518224C2 (sv
Inventor
Dam Henrik Revsbech
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
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to SE9702404A priority Critical patent/SE518224C2/sv
Publication of SE9702404D0 publication Critical patent/SE9702404D0/sv
Priority to US09/103,028 priority patent/US6223040B1/en
Priority to BRPI9810282-6A priority patent/BR9810282B1/pt
Priority to AU79512/98A priority patent/AU7951298A/en
Priority to JP50432599A priority patent/JP4104673B2/ja
Priority to CA002294269A priority patent/CA2294269C/en
Priority to EP98930031A priority patent/EP0988720B1/en
Priority to PCT/SE1998/001231 priority patent/WO1998059443A1/en
Priority to CN98806562.2A priority patent/CN1126295C/zh
Priority to DE69833113T priority patent/DE69833113T2/de
Publication of SE9702404L publication Critical patent/SE9702404L/sv
Publication of SE518224C2 publication Critical patent/SE518224C2/sv

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/24Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2662Arrangements for Wireless System Synchronisation
    • H04B7/2671Arrangements for Wireless Time-Division Multiple Access [TDMA] System Synchronisation
    • H04B7/2678Time synchronisation
    • H04B7/2687Inter base stations synchronisation
    • H04B7/2693Centralised synchronisation, i.e. using external universal time reference, e.g. by using a global positioning system [GPS] or by distributing time reference over the wireline network
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W56/00Synchronisation arrangements
    • H04W56/001Synchronization between nodes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W56/00Synchronisation arrangements
    • H04W56/0055Synchronisation arrangements determining timing error of reception due to propagation delay
    • H04W56/0065Synchronisation arrangements determining timing error of reception due to propagation delay using measurement of signal travel time
    • H04W56/007Open loop measurement
    • H04W56/0075Open loop measurement based on arrival time vs. expected arrival time
    • H04W56/0085Open loop measurement based on arrival time vs. expected arrival time detecting a given structure in the signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Mobile Radio Communication Systems (AREA)
SE9702404A 1997-06-24 1997-06-24 Sätt och system i ett cellbaserat nät SE518224C2 (sv)

Priority Applications (10)

Application Number Priority Date Filing Date Title
SE9702404A SE518224C2 (sv) 1997-06-24 1997-06-24 Sätt och system i ett cellbaserat nät
US09/103,028 US6223040B1 (en) 1997-06-24 1998-06-23 Method and a system in a cellular network
DE69833113T DE69833113T2 (de) 1997-06-24 1998-06-24 Verfahren und system für ein zellulares netzwerk
JP50432599A JP4104673B2 (ja) 1997-06-24 1998-06-24 セル式ネットワークにおける方法およびシステム
AU79512/98A AU7951298A (en) 1997-06-24 1998-06-24 A method and a system in a cellular network
BRPI9810282-6A BR9810282B1 (pt) 1997-06-24 1998-06-24 processo em um sistema de rádio móvel celular, e, sistema de rádio móvel celular.
CA002294269A CA2294269C (en) 1997-06-24 1998-06-24 A method and a system in a cellular network
EP98930031A EP0988720B1 (en) 1997-06-24 1998-06-24 A method and a system in a cellular network
PCT/SE1998/001231 WO1998059443A1 (en) 1997-06-24 1998-06-24 A method and a system in a cellular network
CN98806562.2A CN1126295C (zh) 1997-06-24 1998-06-24 蜂窝网里的一种方法和一种***

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9702404A SE518224C2 (sv) 1997-06-24 1997-06-24 Sätt och system i ett cellbaserat nät

Publications (3)

Publication Number Publication Date
SE9702404D0 SE9702404D0 (sv) 1997-06-24
SE9702404L true SE9702404L (sv) 1998-12-25
SE518224C2 SE518224C2 (sv) 2002-09-10

Family

ID=20407485

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9702404A SE518224C2 (sv) 1997-06-24 1997-06-24 Sätt och system i ett cellbaserat nät

Country Status (10)

Country Link
US (1) US6223040B1 (sv)
EP (1) EP0988720B1 (sv)
JP (1) JP4104673B2 (sv)
CN (1) CN1126295C (sv)
AU (1) AU7951298A (sv)
BR (1) BR9810282B1 (sv)
CA (1) CA2294269C (sv)
DE (1) DE69833113T2 (sv)
SE (1) SE518224C2 (sv)
WO (1) WO1998059443A1 (sv)

Families Citing this family (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
FI974646A (sv) * 1997-12-30 1999-07-01 Nokia Networks Oy Utjämning av störningar i mobilkommunicationssystem
US6522644B2 (en) * 1998-06-25 2003-02-18 Telefonaktiebolaget Lm Ericsson (Publ) Method for decorrelating background interference in a time-synchronized mobile communications system
DE19840232C1 (de) * 1998-09-03 1999-10-28 Siemens Ag Verfahren und Funk-Kommunikationssystem zur Synchronisation von Teilnehmerstationen
US6507926B1 (en) * 1999-03-16 2003-01-14 Trw Inc. Mitigation of false co-channel uplink reception in a processing satellite communication system using stagger
US6493539B1 (en) * 1999-07-28 2002-12-10 Lucent Technologies Inc. Providing an accurate timing source for locating the geographical position of a mobile
US8064409B1 (en) 1999-08-25 2011-11-22 Qualcomm Incorporated Method and apparatus using a multi-carrier forward link in a wireless communication system
EP1089473A1 (en) * 1999-09-28 2001-04-04 TELEFONAKTIEBOLAGET L M ERICSSON (publ) Apparatus and method for time-aligning data frames of a plurality of channels in a telecommunication system
EP1089472A1 (en) 1999-09-28 2001-04-04 TELEFONAKTIEBOLAGET L M ERICSSON (publ) Time-alignment apparatus and method for providing data frames of a plurality of channels with predetermined time-offsets
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
ATE446623T1 (de) * 1999-11-03 2009-11-15 Qualcomm Inc Synchronisierte pilotreferenzübertragung für ein drahtloses kommunikationssystem
DE69938185T2 (de) * 1999-12-21 2009-07-23 Lucent Technologies Inc. Eine Methode und ein Apparat zum Betrieb eines zellularen Telekommunikationsystems
US6535747B1 (en) * 1999-12-23 2003-03-18 Ericsson Inc. System and method for coverage and interference prediction and tradeoff
US6967936B1 (en) * 2000-02-11 2005-11-22 Lucent Technologies Inc. Uplink timing synchronization and access control for a multi-access wireless communication system
FR2808160B1 (fr) * 2000-04-21 2004-05-28 Mitsubishi Electric Inf Tech Procede de determination de la position d'une station mobile d'un reseau de telecommunication mobile
US6778513B2 (en) * 2000-09-29 2004-08-17 Arraycomm, Inc. Method and apparatus for separting multiple users in a shared-channel communication system
CA2323164A1 (en) * 2000-10-11 2002-04-11 Ramesh Mantha Method, system and apparatus for improving reception in multiple access communication systems
US7068683B1 (en) 2000-10-25 2006-06-27 Qualcomm, Incorporated Method and apparatus for high rate packet data and low delay data transmissions
US6973098B1 (en) 2000-10-25 2005-12-06 Qualcomm, Incorporated Method and apparatus for determining a data rate in a high rate packet data wireless communications system
US6768747B1 (en) * 2000-11-30 2004-07-27 Arraycomm, Inc. Relative and absolute timing acquisition for a radio communications system
US7016325B2 (en) * 2001-01-18 2006-03-21 Strix Systems, Inc. Link context mobility method and system for providing such mobility, such as a system employing short range frequency hopping spread spectrum wireless protocols
US6842476B2 (en) * 2001-02-09 2005-01-11 Telefonaktiebolaget Lm Ericsson (Publ) Co-channel interference canceller
FR2824207B1 (fr) * 2001-04-27 2005-04-15 Thomson Csf Procede et dispositif de localisation d'un mobile au sein d'un reseau de communication
EP1391100A4 (en) * 2001-05-02 2009-03-11 Strix Systems Inc DISCOVERING NEIGHBORS OF A WIRELESS BASE STATION IN A COMMUNICATION SYSTEM USING A LOW-RANGE FREQUENCY HOPPING PLAN
US7151757B2 (en) * 2001-05-02 2006-12-19 Strix Systems, Inc. Wireless base station to base station synchronization in a communication system, such as a system employing a short-range frequency hopping or time division duplex scheme
US7194010B2 (en) * 2001-05-02 2007-03-20 Strix Systems, Inc. Wireless base station to base station synchronization in a communication system, such as a system employing a short range frequency hopping or time division duplex scheme
US7206583B2 (en) 2001-05-15 2007-04-17 Telefonaktiebolaget L M Ericsson (Publ) Co-channel interference suppression by estimating the time of arrival (TOA)
US7042909B2 (en) * 2001-06-27 2006-05-09 Freescale Semiconductor, Inc. Method and apparatus for controlling the timing of a communication device
JP4054550B2 (ja) * 2001-06-29 2008-02-27 株式会社エヌ・ティ・ティ・ドコモ 送信電力制御方法及び装置
EP1389884A1 (de) * 2002-08-13 2004-02-18 Siemens Aktiengesellschaft Verfahren zum Betrieb eines Funksystems mittels Richtantennen sowie sendende Station und Funksystem
US7065373B2 (en) 2002-10-18 2006-06-20 Itt Manufacturing Enterprises, Inc. Method of steering smart antennas
US7447236B2 (en) * 2002-11-14 2008-11-04 Siemens Aktiengesellschaft Method and apparatus for determining an arrival time associated with a synchronization burst
WO2004057895A1 (de) * 2002-12-19 2004-07-08 Siemens Aktiengesellschaft Verfahren zur interferenzunterdrückung an einem funkkommunikationsendgerät eines funkkommunikationssystems
DE10303700B4 (de) * 2003-01-30 2005-09-22 Siemens Ag Verfahren zur Interferenzunterdrückung
US7221722B2 (en) * 2003-02-27 2007-05-22 Motorola, Inc. Method and apparatus for reducing interference within a communication system
DE10326336B4 (de) * 2003-06-11 2006-06-29 Infineon Technologies Ag Vorrichtung und Verfahren zum zeitlichen Steuern der Verarbeitung eines Funksignals in einer Mobilstation
KR100617729B1 (ko) * 2004-03-05 2006-08-28 삼성전자주식회사 셀룰러 통신 시스템에서 다중 주파수 재사용율 기반의 주파수 자원 할당 시스템 및 방법
ATE414350T1 (de) * 2004-06-18 2008-11-15 Ericsson Telefon Ab L M Cosequenz-störungsdetektion und -behandlung
US20070147435A1 (en) * 2005-12-23 2007-06-28 Bruce Hamilton Removing delay fluctuation in network time synchronization
US8385435B2 (en) * 2006-02-09 2013-02-26 Broadcom Corporation Measuring interference and noise power using non-content burst periods
JP4932419B2 (ja) * 2006-06-19 2012-05-16 株式会社エヌ・ティ・ティ・ドコモ 移動通信システム
CN101529270B (zh) * 2006-10-18 2012-03-21 日本电气株式会社 具有gps功能的移动通信终端、定位***、操作控制方法和程序
CN101247156B (zh) * 2007-02-14 2012-09-05 中兴通讯股份有限公司 数据同步实现方法
CN101785337B (zh) * 2007-09-03 2013-06-19 爱立信电话股份有限公司 采用irc的蜂窝无线电***的频率规划的方法
US20090097452A1 (en) * 2007-10-12 2009-04-16 Qualcomm Incorporated Femto cell synchronization and pilot search methodology
US8023600B2 (en) * 2007-11-07 2011-09-20 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for interference rejection combining and detection
EP2645655B1 (en) * 2008-09-12 2019-03-27 Qualcomm Incorporated A method and apparatus for signaling to a mobile device which set of training sequence codes to use for a communication link
CN103906250B (zh) * 2009-02-02 2018-06-22 三菱电机株式会社 移动体通信***
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
US9401826B2 (en) * 2012-02-17 2016-07-26 Sony Corporation Signal processing unit employing a blind channel estimation algorithm and method of operating a receiver apparatus
WO2014189421A1 (en) 2013-05-23 2014-11-27 Telefonaktiebolaget L M Ericsson (Publ) Method and network node for assisting handling of interference at a receiver device
US10454641B2 (en) * 2016-11-16 2019-10-22 Telefonaktiebolaget Lm Ericsson (Publ) Listen before talk for reference signals in MIMO systems

Family Cites Families (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2943115A1 (de) 1979-10-25 1981-05-07 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren zur synchronisation von teilnehmern in einem funknetz mit relaisstelle
CA1227844A (en) 1983-09-07 1987-10-06 Michael T.H. Hewitt Communications network having a single node and a plurality of outstations
US4688217A (en) 1984-08-31 1987-08-18 Nec Corporation Method of implementing burst acquisition control in TDMA system
FI71452C (fi) 1985-04-10 1986-12-19 Arvo Mustonen Synkroniseringsfoerfarande foer ett lokalt t ex riksomfattandepersonsoekarnaets radiosaendare
EP0208021B1 (de) 1985-07-02 1991-05-22 ANT Nachrichtentechnik GmbH TDMA-Punkt- zu Mehrpunkt-Kommunikationssystem
US4972507A (en) 1988-09-09 1990-11-20 Cellular Data, Inc. Radio data protocol communications system and method
US4941155A (en) * 1989-11-16 1990-07-10 Bell Communications Research, Inc. Method and circuitry for symbol timing and frequency offset estimation in time division multiple access radio systems
US5206855A (en) 1990-04-06 1993-04-27 Motorola, Inc. Multiple frequency message system
US5155742A (en) * 1991-05-03 1992-10-13 Bell Communications Research, Inc. Time dispersion equalizer receiver with a time-reversal structure for TDMA portable radio systems
US5222101A (en) * 1991-05-03 1993-06-22 Bell Communications Research Phase equalizer for TDMA portable radio systems
US5177740A (en) 1991-09-03 1993-01-05 General Electric Company Frame/slot synchronization for U.S. digital cellular TDMA radio telephone system
US5440561A (en) 1991-09-30 1995-08-08 Motorola, Inc. Method for establishing frame synchronization within a TDMA communication system
US5381443A (en) * 1992-10-02 1995-01-10 Motorola Inc. Method and apparatus for frequency hopping a signalling channel in a communication system
DE69422852T2 (de) 1993-05-26 2000-06-15 Nec Corp Netzwerksynchronisierung für zellulare TDMA Kommunikation unter Verwendung von Signalen von Mobilstationen in benachbarten Zellen
KR100298277B1 (ko) 1993-06-14 2001-10-24 에를링 블로메, 타게 뢰브그렌 셀룰라통신시스템용코드분할다중억세스방법및시스템
US5507034A (en) * 1993-09-01 1996-04-09 Telefonaktiebolaget Lm Ericsson Channel selection in a cellular communication system
FI110043B (sv) 1993-09-20 2002-11-15 Nokia Corp Förfarande för utförande av överkoppling i CDMA-cellularradiosystem och mobilstation
US5425049A (en) * 1993-10-25 1995-06-13 Ericsson Ge Mobile Communications Inc. Staggered frequency hopping cellular radio system
IL108056A (en) 1993-12-16 1998-07-15 Geotek Ind Inc Radio telephone system for minimizing inter-channel interference that uses geographical separation of signals and power control to tradition
SE502168C2 (sv) 1993-12-29 1995-09-04 Ericsson Telefon Ab L M Förfarande och anordning vid ett radiokommunikationssystem
JPH07203543A (ja) 1994-01-07 1995-08-04 Nippon Telegr & Teleph Corp <Ntt> Tdmaフレーム同期方法
US5528597A (en) * 1994-04-18 1996-06-18 At&T Corp. Autonomous synchronization of base stations in a digital wireless radiotelephone network
GB9412286D0 (en) 1994-06-18 1994-08-10 Philips Electronics Uk Ltd Communications system
US5473612A (en) 1994-11-28 1995-12-05 Motorola, Inc. Method and apparatus for minimizing false detection of packet data in a communication receiver
JP3482722B2 (ja) * 1995-01-13 2004-01-06 ソニー株式会社 Tdma方式の受信機
US5590399A (en) * 1995-02-23 1996-12-31 Nextel Communications Up-link channel assignment scheme for cellular mobile communications systems employing multi-beam antennas with beam selection
BR9611889A (pt) * 1995-12-07 1999-12-28 Vistar Telecommunications Inc Metodo para melhorar a eficiência no uso de canal de radio em areas de cobertura sobrepostas.
US5684794A (en) 1996-01-25 1997-11-04 Hazeltine Corporation Validation of subscriber signals in a cellular radio network
US5898929A (en) * 1996-08-30 1999-04-27 Telefonaktiebolaget L/M Ericsson (Publ) Method and apparatus for synchronizing private radio systems
US5870673A (en) * 1996-08-30 1999-02-09 Telefonaktiebolaget Lm Ericsson Methods and systems for concurrent receipt of incoming calls from a wide area cellular network and a private radio communications network
US5930248A (en) * 1997-03-04 1999-07-27 Telefonaktiebolaget Lm Ericsson Radio communication system selectively using multicast with variable offset time

Also Published As

Publication number Publication date
BR9810282A (pt) 2000-09-12
WO1998059443A1 (en) 1998-12-30
JP4104673B2 (ja) 2008-06-18
JP2002505820A (ja) 2002-02-19
CN1261484A (zh) 2000-07-26
AU7951298A (en) 1999-01-04
DE69833113T2 (de) 2006-07-20
SE9702404D0 (sv) 1997-06-24
CN1126295C (zh) 2003-10-29
US6223040B1 (en) 2001-04-24
SE518224C2 (sv) 2002-09-10
EP0988720A1 (en) 2000-03-29
EP0988720B1 (en) 2006-01-04
CA2294269A1 (en) 1998-12-30
BR9810282B1 (pt) 2012-10-16
CA2294269C (en) 2007-09-04
DE69833113D1 (de) 2006-03-30

Similar Documents

Publication Publication Date Title
SE9702404L (sv) Sätt och system i ett cellbaserat nät
AU688414B2 (en) Extended radio cell
KR0163463B1 (ko) 기지국과 이동국 사이의 전파 지연이 고려된 cdma 통신방법 및 cdma 통신망에서 사용하기 위한 기지국 및 이동국
TW358268B (en) Method of and apparatus for interference rejection combining and downlink beamforming in a cellular radiocommunications system
CA2264790A1 (en) Mobile communication system
GB2347330A (en) Method and apparatus for tracking a communication signal in a wireless communication system
AU4830597A (en) TDMA cellular communication system using a receiver station for detecting a timing difference between adjacent base stations
MXPA03003259A (es) Metodo y aparato para mejorar la recepcion en sistemas de comunicacion de acceso multiple.
MY106895A (en) Multiple access handling in a cellular communications system
MY109970A (en) Arrangement for telecommunication
FI970185A0 (sv) Förfarande för datakommunikation och radiosystem
SE9200962D0 (sv) Basstation foer cellindelade frekvenshoppande tdma-radiokommunikationssystem
GB2353675A (en) Gsm transceiver unit equipped for time of arrival measurements
WO1994028643A1 (en) Base station for a tdma cellular radio network
AU646672B2 (en) Receiver for a cellular mobile radio communication system
CA2222794A1 (en) Mobile radio receiver for cellular radio telecommunications systems
AU5026500A (en) Accelerated selection of a base station in a wireless communication system
GB1476843A (en) Radiotelephone system
EP0831612A4 (en) MOBILE MESSAGE TRANSMISSION SYSTEM
ES8605928A1 (es) Radio-sistema celular digital
US6516199B1 (en) Reducing interference in telecommunications systems
MY121742A (en) A cellular positioning system that compensates for received signal delays in positioning radio receivers
HK1037446A1 (en) Uncoordinated frequency hopping cellular system.
DE69613531T2 (de) Linearer offsetkompensierter hochfrequenzdetektor
FR2702904B1 (fr) Systeme de radiocommunication numerique bidirectionnel multiporteuse, station mobile et station de base correspondantes.

Legal Events

Date Code Title Description
NUG Patent has lapsed