EP1038359A2 - Evaluation de canaux de transmission dans des systemes de communication pour la telecommunication sans fil - Google Patents
Evaluation de canaux de transmission dans des systemes de communication pour la telecommunication sans filInfo
- Publication number
- EP1038359A2 EP1038359A2 EP98955359A EP98955359A EP1038359A2 EP 1038359 A2 EP1038359 A2 EP 1038359A2 EP 98955359 A EP98955359 A EP 98955359A EP 98955359 A EP98955359 A EP 98955359A EP 1038359 A2 EP1038359 A2 EP 1038359A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- impulse response
- channel impulse
- transmitter
- receiver
- bts2
- 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
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 69
- 238000004891 communication Methods 0.000 title description 12
- 238000012549 training Methods 0.000 claims abstract description 11
- 101150080339 BTS1 gene Proteins 0.000 claims description 60
- 238000000034 method Methods 0.000 claims description 30
- -1 BTS2 Proteins 0.000 claims 22
- 238000012360 testing method Methods 0.000 abstract description 4
- 230000011664 signaling Effects 0.000 description 13
- 238000001514 detection method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000010295 mobile communication Methods 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- YVGGHNCTFXOJCH-UHFFFAOYSA-N DDT Chemical compound C1=CC(Cl)=CC=C1C(C(Cl)(Cl)Cl)C1=CC=C(Cl)C=C1 YVGGHNCTFXOJCH-UHFFFAOYSA-N 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 108010009392 Cyclin-Dependent Kinase Inhibitor p16 Proteins 0.000 description 1
- 108010003272 Hyaluronate lyase Proteins 0.000 description 1
- 102100023087 Protein S100-A4 Human genes 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
-
- 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
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
- H04B7/0842—Weighted combining
- H04B7/0845—Weighted combining per branch equalization, e.g. by an FIR-filter or RAKE receiver per antenna branch
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
-
- 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
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Mobile Radio Communication Systems (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Time-Division Multiplex Systems (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
Selon l'invention, pour améliorer, simplifier et optimiser l'évaluation de canaux de transmission sans fil dans des systèmes de télécommunication, les corrélations de différentes réponses d'impulsion de canal sont exploitées de différentes façons. Par exemple, un des deux messages, destiné à un autre émetteur/récepteur, est utilisé pour l'évaluation de canaux. En outre, ou selon une variante, la différence entre deux réponses d'impulsion de canal est déterminée. Si cette différence est inférieure à une valeur limite, une réponse moyenne d'impulsion de canal est formée et/ou, ensuite, dans une rafale sur deux, des séquences d'informations d'apprentissage ou des signaux d'essai ne sont pas transmis. En outre, ou selon une variante, la mise en corrélation des deux réponses d'impulsion de canal au moyen de tables à consulter peut être utilisée pour l'évaluation de la vitesse d'un abonné.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19747369A DE19747369A1 (de) | 1997-10-27 | 1997-10-27 | Übertragungskanalschätzung in Telekommunikationssystemen mit drahtloser Telekommunikation |
DE19747369 | 1997-10-27 | ||
PCT/DE1998/002894 WO1999022454A2 (fr) | 1997-10-27 | 1998-09-30 | Evaluation de canaux de transmission dans des systemes de communication pour la telecommunication sans fil |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1038359A2 true EP1038359A2 (fr) | 2000-09-27 |
Family
ID=7846731
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98955359A Ceased EP1038359A2 (fr) | 1997-10-27 | 1998-09-30 | Evaluation de canaux de transmission dans des systemes de communication pour la telecommunication sans fil |
Country Status (11)
Country | Link |
---|---|
US (1) | US6795427B1 (fr) |
EP (1) | EP1038359A2 (fr) |
JP (1) | JP2001522157A (fr) |
KR (1) | KR20010031509A (fr) |
CN (1) | CN1153370C (fr) |
AU (1) | AU1223899A (fr) |
BR (1) | BR9813306A (fr) |
CA (1) | CA2308026A1 (fr) |
DE (1) | DE19747369A1 (fr) |
RU (1) | RU2235430C2 (fr) |
WO (1) | WO1999022454A2 (fr) |
Families Citing this family (40)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19917334A1 (de) * | 1999-04-16 | 2000-10-26 | Siemens Ag | Mittambelstruktur für TD-CDMA-Mobilfunksysteme |
EP1091533B1 (fr) * | 1999-10-07 | 2006-10-04 | Robert Bosch Gmbh | Procédé et dispositif d'estimation de canal dans un système de communication mobile |
US8831130B1 (en) | 1999-10-16 | 2014-09-09 | Ipcom Gmbh & Co. Kg | Channel estimate predicted from several previous channel estimates, for pre-equalization |
AUPQ883200A0 (en) | 2000-07-18 | 2000-08-10 | Telefonaktiebolaget Lm Ericsson (Publ) | Telecommunication system and method of communicating protocol information |
DE10115583B4 (de) * | 2001-03-29 | 2012-07-12 | Siemens Ag | Verfahren und Vorrichtung zur Bildung eines Ähnlichkeitsmaßesund Kanalschätzung mittels Ähnlichkeitsmaß |
US20020183010A1 (en) * | 2001-06-05 | 2002-12-05 | Catreux Severine E. | Wireless communication systems with adaptive channelization and link adaptation |
US7068631B2 (en) * | 2001-08-06 | 2006-06-27 | Telefonaktiebolaget Lm Ericsson (Publ) | Training sequence hopping in a radio communication system |
US7346126B2 (en) | 2001-11-28 | 2008-03-18 | Telefonaktiebolaget L M Ericsson (Publ) | Method and apparatus for channel estimation using plural channels |
US7039001B2 (en) | 2002-10-29 | 2006-05-02 | Qualcomm, Incorporated | Channel estimation for OFDM communication systems |
US7042857B2 (en) | 2002-10-29 | 2006-05-09 | Qualcom, Incorporated | Uplink pilot and signaling transmission in wireless communication systems |
US20040114681A1 (en) * | 2002-12-17 | 2004-06-17 | Ron Rotstein | Method for improving performance of wireless systems at high speeds |
CN100521667C (zh) * | 2003-03-03 | 2009-07-29 | 三菱电机株式会社 | 获取接收到的脉冲无线电信号的方法、系统和装置 |
US7177297B2 (en) | 2003-05-12 | 2007-02-13 | Qualcomm Incorporated | Fast frequency hopping with a code division multiplexed pilot in an OFDMA system |
JP2005135032A (ja) * | 2003-10-28 | 2005-05-26 | Toshiba Corp | ネットワーク情報設定方法、ネットワークシステム、ならびに通信端末装置 |
US8611283B2 (en) | 2004-01-28 | 2013-12-17 | Qualcomm Incorporated | Method and apparatus of using a single channel to provide acknowledgement and assignment messages |
US8891349B2 (en) | 2004-07-23 | 2014-11-18 | Qualcomm Incorporated | Method of optimizing portions of a frame |
US8238923B2 (en) | 2004-12-22 | 2012-08-07 | Qualcomm Incorporated | Method of using shared resources in a communication system |
US8831115B2 (en) | 2004-12-22 | 2014-09-09 | Qualcomm Incorporated | MC-CDMA multiplexing in an orthogonal uplink |
US8165167B2 (en) * | 2005-03-10 | 2012-04-24 | Qualcomm Incorporated | Time tracking for a communication system |
RU2286025C1 (ru) * | 2005-06-15 | 2006-10-20 | Игорь Борисович Дунаев | Способ передачи и приема сигналов квадратурной амплитудной модуляции, система для его осуществления, машиночитаемый носитель и применение способа для синхронизации приема сигналов квадратурной амплитудной модуляции |
US8619884B2 (en) | 2005-09-02 | 2013-12-31 | Qualcomm Incorporated | Communication channel estimation |
CN1980103B (zh) * | 2005-12-08 | 2012-02-29 | 中兴通讯股份有限公司 | 一种收发信机指标的测试装置及系统 |
EP1816813A1 (fr) * | 2006-01-23 | 2007-08-08 | Koninklijke Philips Electronics N.V. | Estimation de la longueur de la réponse impulsionnelle du canal |
US8681810B2 (en) | 2006-04-13 | 2014-03-25 | Qualcomm Incorporated | Dynamic carrier sensing thresholds |
JP2009534003A (ja) | 2006-04-17 | 2009-09-17 | クゥアルコム・インコーポレイテッド | 無線通信のためのノイズ評価 |
US7974360B2 (en) | 2006-05-24 | 2011-07-05 | Qualcomm Incorporated | Multi input multi output (MIMO) orthogonal frequency division multiple access (OFDMA) communication system |
US8428197B2 (en) | 2006-06-01 | 2013-04-23 | Qualcomm Incorporated | Enhanced channel estimation for communication system receiver |
US8477593B2 (en) | 2006-07-28 | 2013-07-02 | Qualcomm Incorporated | Method and apparatus for sending signaling for data transmission in a wireless communication system |
US8085873B2 (en) | 2007-01-02 | 2011-12-27 | Qualcomm, Incorporated | Systems and methods for enhanced channel estimation in wireless communication systems |
US8913695B2 (en) | 2007-03-12 | 2014-12-16 | Qualcomm Incorporated | Hybrid pilot configuration |
US9071414B2 (en) | 2007-03-23 | 2015-06-30 | Qualcomm Incorporated | Method and apparatus for distinguishing broadcast messages in wireless signals |
CN101222274B (zh) | 2008-01-25 | 2013-02-27 | 中兴通讯股份有限公司 | 时分双工系统中同步信号的发送方法和装置 |
CN101795491A (zh) * | 2010-02-01 | 2010-08-04 | 中兴通讯股份有限公司 | 一种估计终端速度的方法及装置、终端和基站 |
CN101808070A (zh) * | 2010-04-13 | 2010-08-18 | 北京大学 | 一种ofdm系统接收机及其移动速度估计方法 |
CN102238569B (zh) * | 2010-04-22 | 2014-08-27 | 中兴通讯股份有限公司 | 估计终端移动速度的方法和装置 |
CN102025680A (zh) * | 2010-12-15 | 2011-04-20 | 华为技术有限公司 | 速度估计方法和装置 |
US9078205B2 (en) | 2012-03-09 | 2015-07-07 | Qualcomm Incorporated | Methods and apparatus for enabling non-destaggered channel estimation |
US9274912B2 (en) * | 2014-05-16 | 2016-03-01 | Verizon Patent And Licensing Inc. | Simulating burst errors in mobile data communication network system level simulations |
DE102014226141B4 (de) | 2014-12-16 | 2016-08-25 | Continental Automotive Gmbh | Verfahren zum Empfang von Rundfunksignalen in einem Empfangsgerät und Empfangsgerät |
EP3864426A1 (fr) * | 2018-10-12 | 2021-08-18 | Inventio AG | Système et procédé de détermination de la position dans un bâtiment |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2748743B2 (ja) * | 1991-10-01 | 1998-05-13 | 日本電気株式会社 | データ受信方式 |
EP0635185A1 (fr) | 1992-04-09 | 1995-01-25 | Siemens Aktiengesellschaft | Procede de structuration d'un format de champ b en norme dect |
DE4233222C2 (de) | 1992-10-02 | 1995-07-20 | Siemens Ag | Meßsystem (Channel Sounder) zur Untersuchung von Mobilfunkkanälen |
FR2700086B1 (fr) * | 1992-12-30 | 1995-04-28 | Alcatel Radiotelephone | Procédé de transmission d'informations à débit élevé par allocation multiple de blocs, procédé de réception associé et dispositif de réception pour sa mise en Óoeuvre. |
FI108975B (fi) | 1993-03-09 | 2002-04-30 | Nokia Corp | Opetusjakso digitaalisessa solukkopuhelinjärjestelmässä |
FR2724084B1 (fr) * | 1994-08-31 | 1997-01-03 | Alcatel Mobile Comm France | Systeme de transmission d'informations par un canal de transmission variant dans le temps, et equipements d'emission et de reception correspondants |
DE19506117C1 (de) * | 1995-02-22 | 1996-08-08 | Siemens Ag | Verfahren und Anordnung zur Schätzung der Impulsantwort eines Übertragungskanals |
DE19506109C1 (de) * | 1995-02-22 | 1996-06-05 | Siemens Ag | Verfahren und Anordnung zur Schätzung der Impulsantwort eines Übertragungskanals |
DE59603171D1 (de) * | 1995-05-31 | 1999-10-28 | Siemens Ag | Zellulares schnurlos-telekommunikationssystem mit isdn-anschluss |
BR9609237A (pt) * | 1995-05-31 | 1999-05-18 | Siemens Ag | Aparelho receptor de rádio móvel para sistemas ceculares de telecomunição de rádio |
DE19523327C2 (de) * | 1995-06-27 | 2000-08-24 | Siemens Ag | Verfahren zur verbesserten Schätzung der Impulsantwort eines Übertragungskanals |
EP0767543A3 (fr) * | 1995-10-06 | 2000-07-26 | Siemens Aktiengesellschaft | Communication à multiplexage par répartition de code avec suppression d'interférence |
DE19616829C1 (de) * | 1996-04-26 | 1997-04-24 | Siemens Ag | System zur Funkübertragung digitaler Signale zwischen mehreren Teilnehmerstationen und einer Basisstation |
AU6900400A (en) * | 1999-08-10 | 2001-03-05 | Airnet Communications Corporation | Translating repeater system with improved backhaul efficiency |
-
1997
- 1997-10-27 DE DE19747369A patent/DE19747369A1/de not_active Ceased
-
1998
- 1998-09-30 CA CA002308026A patent/CA2308026A1/fr not_active Abandoned
- 1998-09-30 RU RU2000113208/09A patent/RU2235430C2/ru not_active IP Right Cessation
- 1998-09-30 AU AU12238/99A patent/AU1223899A/en not_active Abandoned
- 1998-09-30 JP JP2000518449A patent/JP2001522157A/ja active Pending
- 1998-09-30 BR BR9813306-3A patent/BR9813306A/pt not_active IP Right Cessation
- 1998-09-30 CN CNB988106221A patent/CN1153370C/zh not_active Expired - Fee Related
- 1998-09-30 WO PCT/DE1998/002894 patent/WO1999022454A2/fr not_active Application Discontinuation
- 1998-09-30 US US09/530,256 patent/US6795427B1/en not_active Expired - Fee Related
- 1998-09-30 EP EP98955359A patent/EP1038359A2/fr not_active Ceased
- 1998-09-30 KR KR1020007004550A patent/KR20010031509A/ko not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO9922454A2 * |
Also Published As
Publication number | Publication date |
---|---|
CN1278376A (zh) | 2000-12-27 |
CN1153370C (zh) | 2004-06-09 |
JP2001522157A (ja) | 2001-11-13 |
CA2308026A1 (fr) | 1999-05-06 |
WO1999022454A2 (fr) | 1999-05-06 |
RU2235430C2 (ru) | 2004-08-27 |
AU1223899A (en) | 1999-05-17 |
US6795427B1 (en) | 2004-09-21 |
DE19747369A1 (de) | 1999-05-06 |
BR9813306A (pt) | 2000-11-28 |
WO1999022454A3 (fr) | 1999-10-07 |
KR20010031509A (ko) | 2001-04-16 |
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