SE9702404D0 - Am ethod and a system in a cellular nerwork - Google Patents
Am ethod and a system in a cellular nerworkInfo
- Publication number
- SE9702404D0 SE9702404D0 SE9702404A SE9702404A SE9702404D0 SE 9702404 D0 SE9702404 D0 SE 9702404D0 SE 9702404 A SE9702404 A SE 9702404A SE 9702404 A SE9702404 A SE 9702404A SE 9702404 D0 SE9702404 D0 SE 9702404D0
- Authority
- SE
- Sweden
- Prior art keywords
- radio base
- base station
- time reference
- reference signal
- channel radio
- Prior art date
Links
Classifications
-
- 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
- H04B7/2687—Inter base stations synchronisation
- H04B7/2693—Centralised 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
-
- 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
- H04W56/007—Open loop measurement
- H04W56/0075—Open loop measurement based on arrival time vs. expected arrival time
- H04W56/0085—Open 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)
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 |
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 |
DE69833113T DE69833113T2 (de) | 1997-06-24 | 1998-06-24 | Verfahren und system für ein zellulares netzwerk |
AU79512/98A AU7951298A (en) | 1997-06-24 | 1998-06-24 | A method and a system in a cellular network |
CA002294269A CA2294269C (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系统 |
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 |
BRPI9810282-6A BR9810282B1 (pt) | 1997-06-24 | 1998-06-24 | processo em um sistema de rádio móvel celular, e, sistema de rádio móvel celular. |
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 true SE9702404D0 (sv) | 1997-06-24 |
SE9702404L 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)
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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 |
JP4607407B2 (ja) * | 1999-11-03 | 2011-01-05 | クゥアルコム・インコーポレイテッド | ワイヤレス通信システムのための同期パイロット基準送信 |
EP1111948B1 (en) * | 1999-12-21 | 2008-02-20 | Lucent Technologies Inc. | A method and apparatus for operating a cellular radio telecommunications network |
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 |
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 |
WO2002103988A1 (en) * | 2001-05-02 | 2002-12-27 | Strix Systems, Inc. | Wireless base station neighbor discovery in a communication system employing a short-range frequency hopping 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 |
JP5381101B2 (ja) * | 2006-10-18 | 2014-01-08 | 日本電気株式会社 | Gps機能付移動通信端末、測位システム、動作制御方法及びプログラム |
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 |
US20100238817A1 (en) * | 2007-09-03 | 2010-09-23 | Telefonaktiebolaget Lm Ericsson (Publ) | Method for Frequency Planning of a Cellular Radio System with IRC |
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 |
CN104038332B (zh) | 2008-09-12 | 2018-02-13 | 高通股份有限公司 | 将使用哪一训练序列码集来用于通信链路以信号发送到移动装置的方法和设备 |
WO2010087172A1 (ja) | 2009-02-02 | 2010-08-05 | 三菱電機株式会社 | 移動体通信システム |
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 |
US9686804B2 (en) | 2013-05-23 | 2017-06-20 | Telefonaktiebolaget Lm 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 |
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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 |
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FI71452C (fi) | 1985-04-10 | 1986-12-19 | Arvo Mustonen | Synkroniseringsfoerfarande foer ett lokalt t ex riksomfattandepersonsoekarnaets radiosaendare |
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AU709791B2 (en) * | 1995-12-07 | 1999-09-09 | Skywave Mobile Communications Inc. | Method of improving efficiency of radio channel usage in overlapping coverage areas |
US5684794A (en) | 1996-01-25 | 1997-11-04 | Hazeltine Corporation | Validation of subscriber signals in a cellular radio network |
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 |
US5898929A (en) * | 1996-08-30 | 1999-04-27 | Telefonaktiebolaget L/M Ericsson (Publ) | Method and apparatus for synchronizing private radio systems |
US5930248A (en) * | 1997-03-04 | 1999-07-27 | Telefonaktiebolaget Lm Ericsson | Radio communication system selectively using multicast with variable offset time |
-
1997
- 1997-06-24 SE SE9702404A patent/SE518224C2/sv not_active IP Right Cessation
-
1998
- 1998-06-23 US US09/103,028 patent/US6223040B1/en not_active Expired - Lifetime
- 1998-06-24 WO PCT/SE1998/001231 patent/WO1998059443A1/en active IP Right Grant
- 1998-06-24 CA CA002294269A patent/CA2294269C/en not_active Expired - Lifetime
- 1998-06-24 CN CN98806562.2A patent/CN1126295C/zh not_active Expired - Lifetime
- 1998-06-24 JP JP50432599A patent/JP4104673B2/ja not_active Expired - Lifetime
- 1998-06-24 BR BRPI9810282-6A patent/BR9810282B1/pt not_active IP Right Cessation
- 1998-06-24 EP EP98930031A patent/EP0988720B1/en not_active Expired - Lifetime
- 1998-06-24 AU AU79512/98A patent/AU7951298A/en not_active Abandoned
- 1998-06-24 DE DE69833113T patent/DE69833113T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69833113D1 (de) | 2006-03-30 |
BR9810282B1 (pt) | 2012-10-16 |
DE69833113T2 (de) | 2006-07-20 |
SE518224C2 (sv) | 2002-09-10 |
EP0988720A1 (en) | 2000-03-29 |
CA2294269A1 (en) | 1998-12-30 |
BR9810282A (pt) | 2000-09-12 |
CA2294269C (en) | 2007-09-04 |
CN1261484A (zh) | 2000-07-26 |
JP2002505820A (ja) | 2002-02-19 |
SE9702404L (sv) | 1998-12-25 |
US6223040B1 (en) | 2001-04-24 |
WO1998059443A1 (en) | 1998-12-30 |
EP0988720B1 (en) | 2006-01-04 |
AU7951298A (en) | 1999-01-04 |
JP4104673B2 (ja) | 2008-06-18 |
CN1126295C (zh) | 2003-10-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |