BR9916106A - Detecção de travamento para receptor sem fio demúltiplas trajetórias - Google Patents
Detecção de travamento para receptor sem fio demúltiplas trajetóriasInfo
- Publication number
- BR9916106A BR9916106A BR9916106-0A BR9916106A BR9916106A BR 9916106 A BR9916106 A BR 9916106A BR 9916106 A BR9916106 A BR 9916106A BR 9916106 A BR9916106 A BR 9916106A
- Authority
- BR
- Brazil
- Prior art keywords
- wireless receiver
- symbol
- trajectory
- lock detection
- combiner
- 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
- H04B1/711—Interference-related aspects the interference being multi-path interference
- H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
-
- 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
- H04B1/711—Interference-related aspects the interference being multi-path interference
- H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
- H04B1/7117—Selection, re-selection, allocation or re-allocation of paths to fingers, e.g. timing offset control of allocated fingers
-
- 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
- H04B1/711—Interference-related aspects the interference being multi-path interference
- H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
- H04B1/712—Weighting of fingers for combining, e.g. amplitude control or phase rotation using an inner loop
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Noise Elimination (AREA)
- Circuits Of Receivers In General (AREA)
- Burglar Alarm Systems (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Stereo-Broadcasting Methods (AREA)
- Lock And Its Accessories (AREA)
Abstract
Patente de Invenção: "DETECçãO DE TRAVAMENTO PARARECEPTOR SEM FIO DE MúLTIPLAS TRAJETóRIAS". Umreceptor sem fio recebendo símbolos de código Walsh de múltiplastrajetórias (multipath) determina qual dos coletores (402, 410)capturou ou "travou" em um sinal. Medições das energias decorrelação entre o sinal recebido e todos os símbolos possíveissão armazenadas em unidades de armazenamento de energia(404, 412). Os sinais reais são combinados no combinador (408).Um determinador de máximo (416) determina o símbolo combinadomais provável e um índice para tal símbolo é alimentado de voltaàs unidades de armazenamento de energia. Detetores detravamento (406, 414) utilizam a medição para tal símboloalimentado de volta para determinar se o coletor se travou em umatrajetória. Tal determinação é usada para decidir se o próximo sinaldetectado por tal coletor deve ser aplicado ao combinador.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/209,356 US6130923A (en) | 1998-12-11 | 1998-12-11 | Lock detection for multipath wireless receiver |
PCT/US1999/029377 WO2000035113A1 (en) | 1998-12-11 | 1999-12-09 | Lock detection for multipath wireless receiver |
Publications (2)
Publication Number | Publication Date |
---|---|
BR9916106A true BR9916106A (pt) | 2001-12-18 |
BRPI9916106B1 BRPI9916106B1 (pt) | 2017-03-14 |
Family
ID=22778451
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI9916106A BRPI9916106B1 (pt) | 1998-12-11 | 1999-12-09 | receptor adaptado para a recepção de sinais de múltiplas trajetórias, bem como método e equipamento para decodificação de sinais de múltiplas trajetórias |
Country Status (15)
Country | Link |
---|---|
US (1) | US6130923A (pt) |
EP (1) | EP1138127B1 (pt) |
JP (1) | JP4330804B2 (pt) |
KR (1) | KR100711039B1 (pt) |
CN (1) | CN1130034C (pt) |
AT (1) | ATE308163T1 (pt) |
AU (1) | AU766145B2 (pt) |
BR (1) | BRPI9916106B1 (pt) |
CA (1) | CA2354706C (pt) |
DE (1) | DE69928003T2 (pt) |
ES (1) | ES2251253T3 (pt) |
HK (1) | HK1041123A1 (pt) |
IL (2) | IL143663A0 (pt) |
NO (1) | NO324203B1 (pt) |
WO (1) | WO2000035113A1 (pt) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6130923A (en) * | 1998-12-11 | 2000-10-10 | Qualcomm Incorporated | Lock detection for multipath wireless receiver |
US6975670B1 (en) * | 2000-10-02 | 2005-12-13 | Koninklijke Philips Electronics N.V. | Managing assigned fingers in wireless telecommunication using a finger lock mechanism |
CN101034918A (zh) | 2000-02-23 | 2007-09-12 | Ipr特许公司 | 反向链路初始功率的设定 |
KR100344693B1 (ko) * | 2000-09-29 | 2002-07-25 | 주식회사 케이티프리텔 | 다중반송파 코드분할다중접속시스템의 자동주파수제어장치및 주파수보정방법 |
US7068707B2 (en) * | 2001-03-08 | 2006-06-27 | Qualcomm, Inc. | Method and apparatus for tracking signals in a wireless communication system |
KR20030033192A (ko) * | 2001-10-18 | 2003-05-01 | 주식회사 세스텍 | 스마트 안테나 시스템에서 심볼레이트와 칩레이트를혼용하여 웨이팅하는 핑거와, 그를 이용한 복조 장치 및방법 |
US6826235B2 (en) * | 2002-01-04 | 2004-11-30 | Itran Communications Ltd. | Robust communications system utilizing repetition code and cumulative decoder associated therewith |
US7515876B2 (en) * | 2005-05-03 | 2009-04-07 | Agere Systems Inc. | Rake receiver with time-shared fingers |
RU2541908C1 (ru) * | 2013-11-14 | 2015-02-20 | Открытое акционерное общество "Камчатский гидрофизический институт" (ОАО "КГФИ") | Устройство для декодирования сигналов, прошедших многолучевой канал связи |
RU2541199C1 (ru) * | 2013-11-19 | 2015-02-10 | Открытое акционерное общество "Камчатский гидрофизический институт" (ОАО "КГФИ") | Устройство для декодирования дискретных сигналов, распространяющихся в многолучевом канале |
KR20180092744A (ko) * | 2017-02-10 | 2018-08-20 | 삼성전자주식회사 | 무선 통신 시스템에서 수신 신호를 컴바이닝하는 방법 및 장치 |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4901307A (en) * | 1986-10-17 | 1990-02-13 | Qualcomm, Inc. | Spread spectrum multiple access communication system using satellite or terrestrial repeaters |
US4894842A (en) * | 1987-10-15 | 1990-01-16 | The Charles Stark Draper Laboratory, Inc. | Precorrelation digital spread spectrum receiver |
US5101501A (en) * | 1989-11-07 | 1992-03-31 | Qualcomm Incorporated | Method and system for providing a soft handoff in communications in a cdma cellular telephone system |
US5109390A (en) * | 1989-11-07 | 1992-04-28 | Qualcomm Incorporated | Diversity receiver in a cdma cellular telephone system |
US5056109A (en) * | 1989-11-07 | 1991-10-08 | Qualcomm, Inc. | Method and apparatus for controlling transmission power in a cdma cellular mobile telephone system |
US5103459B1 (en) * | 1990-06-25 | 1999-07-06 | Qualcomm Inc | System and method for generating signal waveforms in a cdma cellular telephone system |
US5452331A (en) * | 1992-08-14 | 1995-09-19 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Symbol lock detection implemented with nonoverlapping integration intervals |
ZA938324B (en) * | 1992-11-24 | 1994-06-07 | Qualcomm Inc | Pilot carrier dot product circuit |
US5793796A (en) * | 1993-06-02 | 1998-08-11 | Roke Manor Research Limited | Apparatus for use in equipment providing a digital radio link between a fixed and a mobile radio unit |
US5442627A (en) * | 1993-06-24 | 1995-08-15 | Qualcomm Incorporated | Noncoherent receiver employing a dual-maxima metric generation process |
US5361276A (en) * | 1993-09-13 | 1994-11-01 | At&T Bell Laboratories | All digital maximum likelihood based spread spectrum receiver |
US5490165A (en) * | 1993-10-28 | 1996-02-06 | Qualcomm Incorporated | Demodulation element assignment in a system capable of receiving multiple signals |
US5479475A (en) * | 1993-11-15 | 1995-12-26 | Qualcomm Incorporated | Method and system for providing communication between standard terminal equipment using a remote communication unit |
US5561618A (en) * | 1993-12-22 | 1996-10-01 | Qualcomm Incorporated | Method and apparatus for performing a fast Hadamard transform |
DE69533540T2 (de) * | 1994-07-29 | 2005-11-17 | Qualcomm, Inc., San Diego | Verfahren und gerät zum ausführen der kodeerfassung in einem cdma übertragungssystem |
US5654979A (en) * | 1995-01-13 | 1997-08-05 | Qualcomm Incorporated | Cell site demodulation architecture for a spread spectrum multiple access communication systems |
US5703902A (en) * | 1995-06-16 | 1997-12-30 | Qualcomm Incorporated | Method and apparatus for determining signal strength in a variable data rate system |
US5764687A (en) * | 1995-06-20 | 1998-06-09 | Qualcomm Incorporated | Mobile demodulator architecture for a spread spectrum multiple access communication system |
US5764688A (en) * | 1995-06-30 | 1998-06-09 | Roke Manor Research Limited | Apparatus for use in equipment providing a digital radio link between a fixed and a mobile radio unit |
US5805648A (en) * | 1995-07-31 | 1998-09-08 | Qualcomm Incorporated | Method and apparatus for performing search acquisition in a CDMA communication system |
US5930288A (en) * | 1996-05-06 | 1999-07-27 | Motorola, Inc. | Time-shared lock indicator circuit and method for power control and traffic channel decoding in a radio receiver |
US6130923A (en) * | 1998-12-11 | 2000-10-10 | Qualcomm Incorporated | Lock detection for multipath wireless receiver |
-
1998
- 1998-12-11 US US09/209,356 patent/US6130923A/en not_active Expired - Lifetime
-
1999
- 1999-12-09 BR BRPI9916106A patent/BRPI9916106B1/pt not_active IP Right Cessation
- 1999-12-09 KR KR1020017007251A patent/KR100711039B1/ko active IP Right Grant
- 1999-12-09 IL IL14366399A patent/IL143663A0/xx active IP Right Grant
- 1999-12-09 DE DE69928003T patent/DE69928003T2/de not_active Expired - Lifetime
- 1999-12-09 EP EP99964215A patent/EP1138127B1/en not_active Expired - Lifetime
- 1999-12-09 AU AU20502/00A patent/AU766145B2/en not_active Ceased
- 1999-12-09 AT AT99964215T patent/ATE308163T1/de not_active IP Right Cessation
- 1999-12-09 CA CA002354706A patent/CA2354706C/en not_active Expired - Lifetime
- 1999-12-09 ES ES99964215T patent/ES2251253T3/es not_active Expired - Lifetime
- 1999-12-09 CN CN99816100A patent/CN1130034C/zh not_active Expired - Lifetime
- 1999-12-09 WO PCT/US1999/029377 patent/WO2000035113A1/en active IP Right Grant
- 1999-12-09 JP JP2000587463A patent/JP4330804B2/ja not_active Expired - Lifetime
-
2001
- 2001-06-08 NO NO20012829A patent/NO324203B1/no not_active IP Right Cessation
- 2001-06-10 IL IL143663A patent/IL143663A/en not_active IP Right Cessation
-
2002
- 2002-04-02 HK HK02102433A patent/HK1041123A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JP4330804B2 (ja) | 2009-09-16 |
JP2002532945A (ja) | 2002-10-02 |
NO324203B1 (no) | 2007-09-10 |
NO20012829L (no) | 2001-08-02 |
ES2251253T3 (es) | 2006-04-16 |
HK1041123A1 (en) | 2002-06-28 |
BRPI9916106B1 (pt) | 2017-03-14 |
NO20012829D0 (no) | 2001-06-08 |
EP1138127B1 (en) | 2005-10-26 |
CN1334996A (zh) | 2002-02-06 |
AU766145B2 (en) | 2003-10-09 |
IL143663A (en) | 2006-06-11 |
KR20010080747A (ko) | 2001-08-22 |
KR100711039B1 (ko) | 2007-04-24 |
DE69928003T2 (de) | 2006-07-27 |
CA2354706C (en) | 2006-01-31 |
CN1130034C (zh) | 2003-12-03 |
IL143663A0 (en) | 2002-04-21 |
CA2354706A1 (en) | 2000-06-15 |
EP1138127A1 (en) | 2001-10-04 |
AU2050200A (en) | 2000-06-26 |
US6130923A (en) | 2000-10-10 |
WO2000035113A1 (en) | 2000-06-15 |
ATE308163T1 (de) | 2005-11-15 |
DE69928003D1 (de) | 2005-12-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10270639B2 (en) | Apparatuses, systems, and methods for communicating using MIMO and spread spectrum coding in backscatter of ambient signals | |
Parks et al. | Turbocharging ambient backscatter communication | |
US5960047A (en) | System and method for transmitting information signals | |
BR9916106A (pt) | Detecção de travamento para receptor sem fio demúltiplas trajetórias | |
MY104809A (en) | Diversity receiver in a cdma cellular telephone system. | |
AU5820700A (en) | Synchronization and detection of modulation type | |
EP1148673A3 (en) | Idendification of a base station, using latin-square hopping sequences, in multicarrier spread-spectrum systems | |
GB2347330A (en) | Method and apparatus for tracking a communication signal in a wireless communication system | |
EP0901237A3 (en) | CDMA Rake receiving apparatus | |
GB2346780B (en) | CDMA reception apparatus and power control method therefor | |
GB0206766D0 (en) | Method of, and apparatus for, determining position | |
MX9801612A (es) | Circuito y metodo de deteccion de servicio. | |
DE60143506D1 (de) | Sprachdetektiongsgerät mit zwei abschaltkriterien | |
AU2003261115A1 (en) | Method and apparatus for detecting jamming signa in a dsss systemusing phase transition counting | |
ATE386371T1 (de) | Erfassung eines torgeschalteten pilotsignals | |
EP1693978A2 (en) | Signal meter for digital systems | |
TWI320642B (pt) | ||
FI20002391A0 (fi) | Vastaanotin ja vastaanottomenetelmä | |
JP2004356725A (ja) | ランダムアクセス信号受信装置及びランダムアクセス信号受信方法 | |
TW200620873A (en) | Path searching method of a wireless comunication system and path searching apparatus thereof | |
JP2001313593A5 (pt) | ||
EP1041397A3 (de) | Verfahren und Vorrichtung zum Bestimmen des auf eine Zeitbasis bezogenen Auftrittszeitpunkt eines Informationsworts in einem codierten Signal und Verfahren und Vorrichtung zum Bestimmen der Laufzeit eines codierten Signals von einem Sender zu einem Empfänger | |
BILODEAU | Detection of signals in noise using single channel receivers[M. S. Thesis. Report, 1 Jan.- 1 Dec. 1975] | |
MX9707283A (es) | Aparato de adaptacion de un modelo o configuracion. | |
KR20000040469A (ko) | 이동통신 시스템에서 다중경로의 최적 신호 검출 방법 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
B06A | Patent application procedure suspended [chapter 6.1 patent gazette] | ||
B09A | Decision: intention to grant [chapter 9.1 patent gazette] | ||
B09X | Republication of the decision to grant [chapter 9.1.3 patent gazette] | ||
B16A | Patent or certificate of addition of invention granted [chapter 16.1 patent gazette] |
Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 14/03/2017, OBSERVADAS AS CONDICOES LEGAIS. |
|
B21F | Lapse acc. art. 78, item iv - on non-payment of the annual fees in time |
Free format text: REFERENTE A 23A ANUIDADE. |
|
B24J | Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12) |
Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2700 DE 04-10-2022 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013. |