BR0014206A - Métodos para montagem em um processador de uma matriz de respostas, e de detecção em uma comunicação de cdma recebida de uma pluralidade de comunicações de dados, e, detector de multiusuários - Google Patents
Métodos para montagem em um processador de uma matriz de respostas, e de detecção em uma comunicação de cdma recebida de uma pluralidade de comunicações de dados, e, detector de multiusuáriosInfo
- Publication number
- BR0014206A BR0014206A BR0014206-9A BR0014206A BR0014206A BR 0014206 A BR0014206 A BR 0014206A BR 0014206 A BR0014206 A BR 0014206A BR 0014206 A BR0014206 A BR 0014206A
- Authority
- BR
- Brazil
- Prior art keywords
- receiver
- response matrix
- processor
- detection
- assembly
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
- H04B1/7103—Interference-related aspects the interference being multiple access interference
- H04B1/7105—Joint detection techniques, e.g. linear detectors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
- H04B1/7103—Interference-related aspects the interference being multiple access interference
- H04B1/7105—Joint detection techniques, e.g. linear detectors
- H04B1/71052—Joint detection techniques, e.g. linear detectors using decorrelation matrix
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/709—Correlator structure
- H04B1/7093—Matched filter type
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
- H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
- H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
- H04B2201/70703—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation using multiple or variable rates
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
- H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
- H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
- H04B2201/70703—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation using multiple or variable rates
- H04B2201/70705—Rate detection
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mathematical Physics (AREA)
- Physics & Mathematics (AREA)
- Mobile Radio Communication Systems (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Burglar Alarm Systems (AREA)
- Fire-Detection Mechanisms (AREA)
- Particle Accelerators (AREA)
- Eye Examination Apparatus (AREA)
- Circuits Of Receivers In General (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Radio Relay Systems (AREA)
- Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Complex Calculations (AREA)
- Measurement Of Radiation (AREA)
- Stereo-Broadcasting Methods (AREA)
- Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)
- Fire Alarms (AREA)
- Push-Button Switches (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
"MéTODOS PARA MONTAGEM EM UM PROCESSADOR DE UMA MATRIZ DE RESPOSTAS, E DE DETECçãO EM UMA COMUNICAçãO DE CDMA RECEBIDA DE UMA PLURALIDADE DE COMUNICAçõES DE DADOS, E, DETECTOR DE MULTIUSUáRIOS". Um detector de multiusuários que detecta e decodifica subcanais síncronos e assícronos de CDMA, tendo diferentes fatores de espalhamento com complexidade computacional reduzida. O detector de multiusuários é compatível com ZF-BLE, MMSE, detectores de descorrelação e semelhantes usando a decomposição de Cholesky para minimizar operações numéricas. O sistema e método dispõem as colunas de matrizes de resposta de transmissão do sistema, representando as características de resposta de usuários individuais em um matriz de resposta de transmissão de sistema total, que representa uma pluralidade de respostas de filtro associado para um dado bloco de dados recebidos. A invenção em conjunto com a decomposição de Cholesky reduz o número de operações matemáticas requeridas antes da filtração associada paralela.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15498599P | 1999-09-21 | 1999-09-21 | |
PCT/US2000/002621 WO2001022610A1 (en) | 1999-09-21 | 2000-02-02 | Multiuser detector for variable spreading factors |
Publications (1)
Publication Number | Publication Date |
---|---|
BR0014206A true BR0014206A (pt) | 2002-05-21 |
Family
ID=22553662
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR0014206-9A BR0014206A (pt) | 1999-09-21 | 2000-02-02 | Métodos para montagem em um processador de uma matriz de respostas, e de detecção em uma comunicação de cdma recebida de uma pluralidade de comunicações de dados, e, detector de multiusuários |
Country Status (19)
Country | Link |
---|---|
US (2) | US7136369B2 (pt) |
EP (1) | EP1214796B1 (pt) |
JP (2) | JP4365063B2 (pt) |
KR (3) | KR20050039883A (pt) |
CN (3) | CN100425010C (pt) |
AT (1) | ATE287149T1 (pt) |
AU (1) | AU2636500A (pt) |
BR (1) | BR0014206A (pt) |
CA (1) | CA2385082C (pt) |
DE (2) | DE60017424T2 (pt) |
DK (1) | DK1214796T3 (pt) |
ES (1) | ES2234566T3 (pt) |
HK (1) | HK1046338B (pt) |
IL (4) | IL148607A0 (pt) |
MX (1) | MXPA02002819A (pt) |
NO (2) | NO325841B1 (pt) |
SG (1) | SG152901A1 (pt) |
TW (1) | TW493321B (pt) |
WO (1) | WO2001022610A1 (pt) |
Families Citing this family (40)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6714527B2 (en) * | 1999-09-21 | 2004-03-30 | Interdigital Techology Corporation | Multiuser detector for variable spreading factors |
CA2385082C (en) * | 1999-09-21 | 2008-04-08 | Interdigital Technology Corporation | Multiuser detector for variable spreading factors |
KR100383594B1 (ko) * | 2001-06-01 | 2003-05-14 | 삼성전자주식회사 | 통신시스템의 하방향링크 공동검출 방법 및 장치 |
GB2380371A (en) | 2001-10-01 | 2003-04-02 | Ipwireless Inc | Method and arrangement for use in a single user detector for a CDMA multi-path system using a finite impulse response filter |
US20040004945A1 (en) * | 2001-10-22 | 2004-01-08 | Peter Monsen | Multiple access network and method for digital radio systems |
US6741653B2 (en) | 2002-07-01 | 2004-05-25 | Interdigital Technology Corporation | Data detection for codes with non-uniform spreading factors |
CN100559700C (zh) | 2002-07-19 | 2009-11-11 | 美商内数位科技公司 | 具接收多样化块传输的群组式连续干扰消除 |
KR100557102B1 (ko) * | 2002-09-07 | 2006-03-03 | 삼성전자주식회사 | 이동통신 시스템에서 직교부호의 길이에 상관없는 공동검출 수신 장치 및 방법 |
CN1186950C (zh) * | 2002-11-13 | 2005-01-26 | 大唐移动通信设备有限公司 | 扩谱系数可变的多用户解调方法 |
CN1170389C (zh) * | 2002-11-13 | 2004-10-06 | 大唐移动通信设备有限公司 | 在联合检测系统中应用长小区化码的方法 |
JP4343844B2 (ja) * | 2002-11-19 | 2009-10-14 | ビーエーイー・システムズ・インフォメーション・アンド・エレクトロニック・システムズ・インテグレーション・インコーポレーテッド | 帯域幅効率に優れたワイヤレスネットワークモデム |
DE602004008738T2 (de) * | 2003-01-10 | 2008-06-12 | Interdigital Technology Corporation, Wilmington | Verallgemeinerte zweistufige datenschätzung |
US8064494B2 (en) * | 2003-05-28 | 2011-11-22 | Qualcomm Incorporated | Last finger polling for rake receivers |
CN100433603C (zh) * | 2003-06-24 | 2008-11-12 | 华为技术有限公司 | 一种码多分址(cdma)通信系统中的多用户检测方法 |
US7245673B2 (en) * | 2003-06-25 | 2007-07-17 | Bae Systems Information And Electronic Systems Integration Inc. | Windowed multiuser detection |
US7236546B2 (en) | 2003-09-10 | 2007-06-26 | Bae Systems Information And Electronic Systems Integration Inc. | Pipelined turbo multiuser detection |
US8503328B2 (en) | 2004-09-01 | 2013-08-06 | Qualcomm Incorporated | Methods and apparatus for transmission of configuration information in a wireless communication network |
GB2418327A (en) * | 2004-09-17 | 2006-03-22 | Toshiba Res Europ Ltd | Common channel interference cancellation in a CDMA system |
US7610025B2 (en) | 2005-03-29 | 2009-10-27 | Qualcomm Incorporated | Antenna array pattern distortion mitigation |
CN101170527B (zh) * | 2006-10-24 | 2010-07-14 | 中兴通讯股份有限公司 | 一种基于mmse的mlse简化检测方法及其装置 |
GB2463872B (en) | 2008-09-24 | 2012-04-18 | Toshiba Res Europ Ltd | A MMSE equaliser |
US9071285B2 (en) | 2011-05-26 | 2015-06-30 | Cohere Technologies, Inc. | Modulation and equalization in an orthonormal time-frequency shifting communications system |
US8547988B2 (en) * | 2010-05-28 | 2013-10-01 | Ronny Hadani | Communications method employing orthonormal time-frequency shifting and spectral shaping |
US9130638B2 (en) | 2011-05-26 | 2015-09-08 | Cohere Technologies, Inc. | Modulation and equalization in an orthonormal time-frequency shifting communications system |
CN104067562B (zh) * | 2011-11-11 | 2017-12-15 | 柏思科技有限公司 | 用于第二层多网络链路隧道的协议 |
US10044841B2 (en) | 2011-11-11 | 2018-08-07 | Pismo Labs Technology Limited | Methods and systems for creating protocol header for embedded layer two packets |
US10469215B2 (en) | 2012-06-25 | 2019-11-05 | Cohere Technologies, Inc. | Orthogonal time frequency space modulation system for the Internet of Things |
US10411843B2 (en) | 2012-06-25 | 2019-09-10 | Cohere Technologies, Inc. | Orthogonal time frequency space communication system compatible with OFDM |
US9148804B2 (en) | 2012-11-07 | 2015-09-29 | Massachusetts Institute Of Technology | Method and apparatus for making optimal use of an asymmetric interference channel in wireless communication systems |
US9693361B2 (en) | 2012-11-07 | 2017-06-27 | Massachusetts Institute Of Technology | Cognitive radio method and apparatus for achieving ad hoc interference multiple access wireless communication |
WO2013180816A2 (en) * | 2012-11-07 | 2013-12-05 | Massachusetts Institute Of Technology | Method and apparatus for rate determination in a radio frequency system |
US10091798B2 (en) | 2012-11-07 | 2018-10-02 | Massachusetts Institute Of Technology | Cognitive radio method and apparatus for achieving ad hoc interference multiple access wireless communication |
US9998199B2 (en) | 2013-03-14 | 2018-06-12 | Massachusetts Institute Of Technology | Method and apparatus for smart adaptive dynamic range multiuser detection radio receiver |
US10299281B2 (en) | 2014-06-16 | 2019-05-21 | Massachusetts Institute Of Technology | Cognitive radio method and apparatus for achieving ad hoc interference multiple access wireless communication |
US9699665B2 (en) | 2014-06-16 | 2017-07-04 | Massachusetts Institute Of Technology | Cognitive radio method and apparatus for achieving ad hoc interference multiple access wireless communication |
US10159004B2 (en) | 2014-11-03 | 2018-12-18 | Massachusetts Institute Of Technology | Message fractionation and physical layer channel assignment for multiuser detection-enabled wireless communication among adaptive interference |
US10574317B2 (en) | 2015-06-18 | 2020-02-25 | Cohere Technologies, Inc. | System and method for providing wireless communication services using configurable broadband infrastructure shared among multiple network operators |
US11522600B1 (en) | 2018-08-01 | 2022-12-06 | Cohere Technologies, Inc. | Airborne RF-head system |
US11690090B2 (en) | 2019-05-21 | 2023-06-27 | Massachusetts Institute Of Technology | Mitigation of communication signal interference using adaptive transmit power |
US11005507B2 (en) | 2019-06-14 | 2021-05-11 | Massachusetts Institute Of Technology | Targeted ratio of signal power to interference plus noise power for enhancement of a multi-user detection receiver |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5151919A (en) * | 1990-12-17 | 1992-09-29 | Ericsson-Ge Mobile Communications Holding Inc. | Cdma subtractive demodulation |
US5204874A (en) * | 1991-08-28 | 1993-04-20 | Motorola, Inc. | Method and apparatus for using orthogonal coding in a communication system |
ZA965340B (en) * | 1995-06-30 | 1997-01-27 | Interdigital Tech Corp | Code division multiple access (cdma) communication system |
EP0767543A3 (de) | 1995-10-06 | 2000-07-26 | Siemens Aktiengesellschaft | Kodemultiplexnachrichtenübertragung mit Interferenzunterdrückung |
FI100041B (fi) * | 1995-12-29 | 1997-08-29 | Nokia Telecommunications Oy | Menetelmä signaalin ja kohinan laadun estimoimiseksi ja vastaanotin |
DE19616829C1 (de) * | 1996-04-26 | 1997-04-24 | Siemens Ag | System zur Funkübertragung digitaler Signale zwischen mehreren Teilnehmerstationen und einer Basisstation |
BR9812816A (pt) * | 1997-09-15 | 2000-08-08 | Adaptive Telecom Inc | Processos para comunicação sem fio, e para eficientemente determinar na estação base um canal espacial da unidade móvel em um sistema de comunicação sem fio, e, estação base de cdma |
KR19990052334A (ko) * | 1997-12-22 | 1999-07-05 | 서평원 | 직접확산 코드분할 다중접속 시스템의 다중사용자 검파장치 및 방법 |
US6339612B1 (en) * | 1998-02-09 | 2002-01-15 | Motorola, Inc. | Method and apparatus for joint detection of data in a direct sequence spread spectrum communications system |
US6307867B1 (en) * | 1998-05-14 | 2001-10-23 | Telefonaktiebolaget Lm Ericsson (Publ) | Data transmission over a communications link with variable transmission rates |
US6463097B1 (en) * | 1998-10-16 | 2002-10-08 | Koninklijke Philips Electronics N.V. | Rate detection in direct sequence code division multiple access systems |
DE19852571C1 (de) | 1998-11-13 | 2000-06-21 | Siemens Ag | Verfahren zur Datenübertragung in einem Funk-Kommunikationssystem mit CDMA-Teilnehmerseparierung und variablen Spreizfaktoren |
US6775260B1 (en) * | 1999-02-25 | 2004-08-10 | Texas Instruments Incorporated | Space time transmit diversity for TDD/WCDMA systems |
FR2793363B1 (fr) * | 1999-05-04 | 2001-07-06 | France Telecom | Procede de detection conjointe d'un ensemble de codes cdma |
JP3485498B2 (ja) | 1999-06-28 | 2004-01-13 | 株式会社ケンウッド | Cdma用受信装置及びそのパス探索方法 |
US6831944B1 (en) * | 1999-09-14 | 2004-12-14 | Interdigital Technology Corporation | Reduced computation in joint detection |
CA2385082C (en) * | 1999-09-21 | 2008-04-08 | Interdigital Technology Corporation | Multiuser detector for variable spreading factors |
US6714527B2 (en) * | 1999-09-21 | 2004-03-30 | Interdigital Techology Corporation | Multiuser detector for variable spreading factors |
JP2001111456A (ja) | 1999-10-06 | 2001-04-20 | Nec Corp | Cdma受信機及び受信方法 |
IT1314346B1 (it) | 1999-12-30 | 2002-12-09 | Telit Mobile Terminals Spa | Metodo e dispositivo per la generazione di codici ortogonali a fattore di spreading variabile o righe di matricidi hadamard per sistemi di |
JP3424748B2 (ja) | 2000-05-25 | 2003-07-07 | 日本電気株式会社 | Cdma受信装置およびレート整合処理方法 |
JP2001358613A (ja) * | 2000-06-14 | 2001-12-26 | Fujitsu Ltd | Cdma受信装置 |
EP1305884A2 (en) * | 2000-08-04 | 2003-05-02 | TELEFONAKTIEBOLAGET LM ERICSSON (publ) | Spreading factor detector |
FR2825856B1 (fr) * | 2001-06-06 | 2003-09-12 | Nortel Networks Ltd | Procede et dispositif de traitement de signal dans un recepteur de radiocommunication a etalement de spectre |
CN101438524B (zh) * | 2006-05-12 | 2012-08-22 | 北京清深技术开发中心有限公司 | 一种分组时间、空间、频率多地址编码方法 |
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2000
- 2000-02-02 CA CA002385082A patent/CA2385082C/en not_active Expired - Fee Related
- 2000-02-02 ES ES00904639T patent/ES2234566T3/es not_active Expired - Lifetime
- 2000-02-02 KR KR1020057005372A patent/KR20050039883A/ko active IP Right Grant
- 2000-02-02 IL IL14860700A patent/IL148607A0/xx active IP Right Grant
- 2000-02-02 AT AT00904639T patent/ATE287149T1/de not_active IP Right Cessation
- 2000-02-02 AU AU26365/00A patent/AU2636500A/en not_active Abandoned
- 2000-02-02 KR KR10-2004-7015491A patent/KR100493750B1/ko not_active IP Right Cessation
- 2000-02-02 CN CNB2005100551908A patent/CN100425010C/zh not_active Expired - Fee Related
- 2000-02-02 JP JP2001525863A patent/JP4365063B2/ja not_active Expired - Fee Related
- 2000-02-02 EP EP00904639A patent/EP1214796B1/en not_active Expired - Lifetime
- 2000-02-02 CN CNB00813216XA patent/CN1201499C/zh not_active Expired - Fee Related
- 2000-02-02 WO PCT/US2000/002621 patent/WO2001022610A1/en active Application Filing
- 2000-02-02 DE DE60017424T patent/DE60017424T2/de not_active Expired - Lifetime
- 2000-02-02 SG SG200405574-5A patent/SG152901A1/en unknown
- 2000-02-02 BR BR0014206-9A patent/BR0014206A/pt active Search and Examination
- 2000-02-02 DE DE1214796T patent/DE1214796T1/de active Pending
- 2000-02-02 DK DK00904639T patent/DK1214796T3/da active
- 2000-02-02 CN CNA2006101007785A patent/CN1897473A/zh active Pending
- 2000-02-02 KR KR10-2002-7003726A patent/KR100495758B1/ko not_active IP Right Cessation
- 2000-02-02 MX MXPA02002819A patent/MXPA02002819A/es not_active IP Right Cessation
- 2000-09-16 TW TW089119049A patent/TW493321B/zh not_active IP Right Cessation
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2002
- 2002-03-11 IL IL148607A patent/IL148607A/en not_active IP Right Cessation
- 2002-03-15 NO NO20021307A patent/NO325841B1/no not_active IP Right Cessation
- 2002-03-19 US US10/100,997 patent/US7136369B2/en not_active Expired - Fee Related
- 2002-09-24 HK HK02106961.0A patent/HK1046338B/zh not_active IP Right Cessation
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2006
- 2006-10-27 US US11/588,454 patent/US7778232B2/en not_active Expired - Fee Related
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2007
- 2007-03-22 IL IL182118A patent/IL182118A/en not_active IP Right Cessation
- 2007-08-29 JP JP2007223219A patent/JP2008017520A/ja active Pending
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2008
- 2008-03-11 NO NO20081291A patent/NO20081291L/no not_active Application Discontinuation
- 2008-11-26 IL IL195539A patent/IL195539A/en not_active IP Right Cessation
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Legal Events
Date | Code | Title | Description |
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B09A | Decision: intention to grant [chapter 9.1 patent gazette] | ||
B11D | Dismissal acc. art. 38, par 2 of ipl - failure to pay fee after grant in time |