BR0011050A - estação receptora com supressão de sinal de interferência - Google Patents

estação receptora com supressão de sinal de interferência

Info

Publication number
BR0011050A
BR0011050A BRPI0011050-7A BR0011050A BR0011050A BR 0011050 A BR0011050 A BR 0011050A BR 0011050 A BR0011050 A BR 0011050A BR 0011050 A BR0011050 A BR 0011050A
Authority
BR
Brazil
Prior art keywords
combining
antenna
interference
optimum
finger
Prior art date
Application number
BRPI0011050-7A
Other languages
English (en)
Inventor
Mario Bonaccorso
Funyun Ling
Nagabhushana Hushayana
Peter Black
Original Assignee
Qualcomm Inc
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
Priority claimed from US09/332,857 external-priority patent/US6285861B1/en
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of BR0011050A publication Critical patent/BR0011050A/pt

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
    • 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
    • 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
    • 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
    • H04B7/0848—Joint weighting
    • H04B7/0854—Joint weighting using error minimizing algorithms, e.g. minimum mean squared error [MMSE], "cross-correlation" or matrix inversion
    • 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)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Noise Elimination (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Radio Relay Systems (AREA)

Abstract

"ESTAçãO RECEPTORA COM SUPRESSãO DE SINAL DE INTERFERêNCIA". Um combinador ideal que reduz a quantidade de interferência imposta sobre uma primeira estação base (102) por transmissões de outras estações base dentro do mesmo sistema de comunicação. Duas antenas (112, 114) são usadas para receber transmissões dentro de uma estação receptora (110). Um receptor RAKE ou de ramos é acoplado a cada antena. (112, 114). Pela combinação ideal dos sinais que são recebidos por cada ramo independente do receptor de ramos, a interferência que é correlacionada entre um ramo associado à primeira antena (112) e um ramo associado à segunda antena (114) pode ser minimizada com relação ao sinal desejado. A combinação ideal requer a determinação de coeficientes de combinação ideais. Um algoritmo de combinação de razão máxima pode substituir o algoritmo de combinação ideal dependendo das características da interferência.
BRPI0011050-7A 1999-06-14 2000-06-13 estação receptora com supressão de sinal de interferência BR0011050A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/332,857 US6285861B1 (en) 1999-06-14 1999-06-14 Receiving station with interference signal suppression
US09/414,125 US6466558B1 (en) 1999-06-14 1999-10-08 Selection mechanism for signal combining methods
PCT/US2000/016266 WO2000077938A2 (en) 1999-06-14 2000-06-13 Receiving station with interference signal suppression

Publications (1)

Publication Number Publication Date
BR0011050A true BR0011050A (pt) 2006-06-13

Family

ID=26988427

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0011050-7A BR0011050A (pt) 1999-06-14 2000-06-13 estação receptora com supressão de sinal de interferência

Country Status (12)

Country Link
US (2) US6466558B1 (pt)
EP (3) EP1780902B1 (pt)
JP (1) JP4593851B2 (pt)
KR (1) KR100783336B1 (pt)
CN (1) CN1197271C (pt)
AT (2) ATE490608T1 (pt)
AU (1) AU5611100A (pt)
BR (1) BR0011050A (pt)
DE (1) DE60044509D1 (pt)
HK (2) HK1057949A1 (pt)
TW (1) TW480841B (pt)
WO (1) WO2000077938A2 (pt)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6169789B1 (en) 1996-12-16 2001-01-02 Sanjay K. Rao Intelligent keyboard system
KR100322744B1 (ko) * 2000-01-11 2002-02-07 윤종용 코드분할다중접속 신호의 역확산 장치 및 방법
WO2001084861A1 (en) * 2000-04-28 2001-11-08 Hi-G-Tek Ltd. Apparatus and methods for cellular communication
SE518230C2 (sv) * 2000-12-12 2002-09-10 Fredriksson Lars Berno Mobilt data- och kommunikationsnät för bl.a. inomhusanvändning med frekvenshopp och tidsluckeåteranvändning
US7769078B2 (en) * 2000-12-22 2010-08-03 Telefonaktiebolaget Lm Ericsson (Publ) Apparatus, methods and computer program products for delay selection in a spread-spectrum receiver
US6975868B2 (en) * 2001-02-21 2005-12-13 Qualcomm Incorporated Method and apparatus for IS-95B reverse link supplemental code channel frame validation and fundamental code channel rate decision improvement
US6990137B2 (en) * 2001-05-17 2006-01-24 Qualcomm, Incorporated System and method for received signal prediction in wireless communications systems
US7170924B2 (en) 2001-05-17 2007-01-30 Qualcomm, Inc. System and method for adjusting combiner weights using an adaptive algorithm in wireless communications system
KR100450949B1 (ko) * 2001-09-18 2004-10-02 삼성전자주식회사 데이터 통신 시스템에서 채널 복호기 입력 연성 결정 값계산 장치 및 방법
US7496950B2 (en) * 2002-06-13 2009-02-24 Engedi Technologies, Inc. Secure remote management appliance
US7483408B2 (en) * 2002-06-26 2009-01-27 Nortel Networks Limited Soft handoff method for uplink wireless communications
US6753775B2 (en) * 2002-08-27 2004-06-22 Hi-G-Tek Ltd. Smart container monitoring system
US6778083B2 (en) * 2002-08-27 2004-08-17 Hi-G-Tek Ltd. Electronic locking seal
US7411495B2 (en) * 2002-08-27 2008-08-12 Hi-G-Tek Ltd. Smart container monitoring system
US7042354B2 (en) * 2002-12-11 2006-05-09 Hi-G-Tek Ltd. Tamper-resistant electronic seal
JP4177711B2 (ja) * 2003-05-28 2008-11-05 松下電器産業株式会社 受信装置及び受信方法
EP1735879A2 (en) 2004-03-30 2006-12-27 Hi-G-Tek Ltd Monitorable locking assemblies
US7532664B2 (en) * 2004-08-02 2009-05-12 Nokia Corporation Method and apparatus to estimate signal to interference plus noise ratio (SINR) in a multiple antenna receiver
FR2888064A1 (fr) * 2005-06-29 2007-01-05 France Telecom Procede et dispositif pour selectionner un recepteur dans un dispositif de communication a plusieurs antennes en fonction de l'environnement
CN1925667B (zh) * 2005-08-29 2011-04-20 国际商业机器公司 在室内环境中确定基站设置方式的无线电规划方法和设备
KR100999371B1 (ko) 2007-02-14 2010-12-09 삼성전자주식회사 광대역 무선 접속 통신 시스템에서 간섭 제거 장치 및 방법
US8032100B2 (en) * 2007-06-29 2011-10-04 Delphi Technologies, Inc. System and method of communicating multiple carrier waves
TWI415329B (zh) * 2009-06-15 2013-11-11 Senao Networks Inc Multi-incoming and outgoing RF transmitter and receiver
JP5678420B2 (ja) * 2009-09-01 2015-03-04 富士通株式会社 中継方法及び中継装置
KR101712380B1 (ko) 2010-06-14 2017-03-06 삼성전자주식회사 인지적 간섭 제어 방법 및 장치
EP3644518B1 (en) * 2018-10-23 2021-06-23 Nxp B.V. Optimizing mrc coefficients for rake receiver for increasing snr
EP3888256A4 (en) 2018-11-27 2022-08-31 Xcom Labs, Inc. MULTIPLE INPUT AND INCOHERENT COOPERATIVE MULTIPLE OUTPUT COMMUNICATIONS
US11411779B2 (en) 2020-03-31 2022-08-09 XCOM Labs, Inc. Reference signal channel estimation

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4494228A (en) * 1982-08-12 1985-01-15 The United States Of America As Represented By The Secretary Of The Army Orthogonal code division multiple access communications systems
JPS62104225A (ja) * 1985-10-30 1987-05-14 Nec Corp 雑音消去装置
US5684834A (en) * 1993-06-14 1997-11-04 Paradyne Corporation Simultaneous analog and digital communication using fractional rate encoding
US5481565A (en) * 1993-10-18 1996-01-02 At&T Corp. Method and apparatus for channel equalization
JP2734952B2 (ja) * 1993-12-16 1998-04-02 日本電気株式会社 Ｃｄｍａ基地局受信装置
US5677930A (en) * 1995-07-19 1997-10-14 Ericsson Inc. Method and apparatus for spread spectrum channel estimation
US5809020A (en) * 1996-03-18 1998-09-15 Motorola, Inc. Method for adaptively adjusting weighting coefficients in a cDMA radio receiver
US6252863B1 (en) * 1996-04-09 2001-06-26 Trimble Navigation Limited Multipath compensation for pseudorange signals
FI962140A (fi) * 1996-05-21 1997-11-22 Nokia Telecommunications Oy Menetelmä impulssivasteen estimoimiseksi sekä vastaanotin
JP3566833B2 (ja) * 1997-07-07 2004-09-15 株式会社エヌ・ティ・ティ・ドコモ ディジタル信号変調方法及び復調方法
US6141542A (en) * 1997-07-31 2000-10-31 Motorola, Inc. Method and apparatus for controlling transmit diversity in a communication system
US6269131B1 (en) * 1998-05-28 2001-07-31 Glenayre Electronics, Inc. Physical channel estimator
US6363104B1 (en) * 1998-10-02 2002-03-26 Ericsson Inc. Method and apparatus for interference cancellation in a rake receiver
US6111183A (en) * 1999-09-07 2000-08-29 Lindemann; Eric Audio signal synthesis system based on probabilistic estimation of time-varying spectra
US6304515B1 (en) * 1999-12-02 2001-10-16 John Louis Spiesberger Matched-lag filter for detection and communication

Also Published As

Publication number Publication date
EP1780902B1 (en) 2010-12-01
EP2197121A1 (en) 2010-06-16
EP1780902A1 (en) 2007-05-02
ATE490608T1 (de) 2010-12-15
DE60044509D1 (de) 2010-07-15
WO2000077938A3 (en) 2001-06-28
US6700880B2 (en) 2004-03-02
KR20020095024A (ko) 2002-12-20
HK1057949A1 (en) 2004-04-23
TW480841B (en) 2002-03-21
US6466558B1 (en) 2002-10-15
EP1260029A2 (en) 2002-11-27
EP1260029B1 (en) 2010-06-02
WO2000077938A9 (en) 2002-06-13
US20030021246A1 (en) 2003-01-30
CN1435012A (zh) 2003-08-06
ATE470272T1 (de) 2010-06-15
WO2000077938A2 (en) 2000-12-21
CN1197271C (zh) 2005-04-13
AU5611100A (en) 2001-01-02
JP4593851B2 (ja) 2010-12-08
HK1108772A1 (en) 2008-05-16
KR100783336B1 (ko) 2007-12-07
JP2004508736A (ja) 2004-03-18

Similar Documents

Publication Publication Date Title
HK1108772A1 (en) Receiving station with interference signal suppression
CA2139234A1 (en) Use of diversity transmission to relax adjacent channel requirements in mobile telephone systems
CA2322941A1 (en) Adaptive cancellation of fixed interferers
CA2258376A1 (en) Cdma multiuser receiver featuring a combination of array antenna and multiuser cancelers
AU2001283879A1 (en) Diversity receiver
CA2294852A1 (en) Device and method for a mobile station for receiving signals transmitted from a base station
EP0918443A3 (en) Cellular wireless communications system and base station
CA2053595A1 (en) Microcellular communications system using space diversity reception
WO2000079718A3 (en) Null deepening for an adaptive antenna based communication station
US7394799B2 (en) Apparatus and method using smart antenna in FDD wireless communication system
HK1037447A1 (en) Method and system for providing personal base station communications.
IT1258477B (it) Ricevitore e trasmettitore radio atti a funzionare in diversita'
CA2278532A1 (en) Cellular communication system with multiple same frequency broadcasts in a cell
WO2000025447A3 (en) Diversity receiver for radio communications
WO1995034997A3 (en) Diversity combining for antennas
WO1999048302A3 (en) Wireless mobile station receiver structure with smart antenna canceller
CA2223358A1 (en) Spread-spectrum transmitter and receiver
WO2002051017A3 (en) Base station antenna sharing
DE69409535T2 (de) Basisstationsanlage unter verwendung von diversityempfang
AU583660B2 (en) An electromagnetic wave communications transmission system
ATE279080T1 (de) Basisstation mit einer ersten und zweiten basiseinheit
WO2001006663A3 (en) System and method for optical wireless communication
EP1505744A4 (en) ADAPTIVE ANTENNA TRANSMISSION DEVICE AND BASIC STATION DEVICE THEREWITH
CA2419411A1 (en) Adaptive cancellation of fixed interferers
CA2147635A1 (en) Dual distributed antenna system

Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 15A ANUIDADE.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2310 DE 14-04-2015 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.