[go: up one dir, main page]

FI945336A7 - Menetelmä ja laite koherentin viestinnän suorittamiseksi hajaspektriviestintäjärjestelmässä - Google Patents

Menetelmä ja laite koherentin viestinnän suorittamiseksi hajaspektriviestintäjärjestelmässä

Info

Publication number
FI945336A7
FI945336A7 FI945336A FI945336A FI945336A7 FI 945336 A7 FI945336 A7 FI 945336A7 FI 945336 A FI945336 A FI 945336A FI 945336 A FI945336 A FI 945336A FI 945336 A7 FI945336 A7 FI 945336A7
Authority
FI
Finland
Prior art keywords
spread spectrum
communication system
performing coherent
communication
spectrum communication
Prior art date
Application number
FI945336A
Other languages
English (en)
Swedish (sv)
Other versions
FI112010B (fi
FI945336A0 (fi
Inventor
Fuyun Ling
Original Assignee
Motorola 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=21858459&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI945336(A7) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of FI945336A0 publication Critical patent/FI945336A0/fi
Publication of FI945336A7 publication Critical patent/FI945336A7/fi
Application granted granted Critical
Publication of FI112010B publication Critical patent/FI112010B/fi

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/005—Control of transmission; Equalising
    • 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
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • 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
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Theoretical Computer Science (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Error Detection And Correction (AREA)
FI945336A 1993-03-11 1994-11-11 Menetelmä ja laite koherentin viestinnän suorittamiseksi hajaspektriviestintäjärjestelmässä FI112010B (fi)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US08/031,258 US5329547A (en) 1993-03-11 1993-03-11 Method and apparatus for coherent communication in a spread-spectrum communication system
US3125893 1993-03-11
US9401746 1994-02-16
PCT/US1994/001746 WO1994021065A1 (en) 1993-03-11 1994-02-16 Method and apparatus for coherent communication in a spread-spectrum communication system

Publications (3)

Publication Number Publication Date
FI945336A0 FI945336A0 (fi) 1994-11-11
FI945336A7 true FI945336A7 (fi) 1994-11-11
FI112010B FI112010B (fi) 2003-10-15

Family

ID=21858459

Family Applications (1)

Application Number Title Priority Date Filing Date
FI945336A FI112010B (fi) 1993-03-11 1994-11-11 Menetelmä ja laite koherentin viestinnän suorittamiseksi hajaspektriviestintäjärjestelmässä

Country Status (14)

Country Link
US (1) US5329547A (fi)
EP (1) EP0643889B1 (fi)
JP (1) JP3464002B2 (fi)
CN (1) CN1048606C (fi)
BR (1) BR9404420A (fi)
CA (1) CA2134230C (fi)
DE (1) DE69430720T2 (fi)
FI (1) FI112010B (fi)
MY (1) MY125586A (fi)
PL (1) PL174713B1 (fi)
SE (1) SE520542C2 (fi)
SG (1) SG46295A1 (fi)
TW (1) TW295754B (fi)
WO (1) WO1994021065A1 (fi)

Families Citing this family (124)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6693951B1 (en) * 1990-06-25 2004-02-17 Qualcomm Incorporated System and method for generating signal waveforms in a CDMA cellular 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
US5506864A (en) * 1990-12-05 1996-04-09 Interdigital Technology Corporation CDMA communications and geolocation system and method
US7020125B2 (en) * 1990-12-05 2006-03-28 Interdigital Technology Corporation Broadband CDMA overlay system and method
JPH0754991B2 (ja) * 1993-01-21 1995-06-07 日本電気株式会社 ディジタル移動無線通信方式
CN1064494C (zh) * 1993-06-02 2001-04-11 罗克马诺尔研究有限公司 组合了扩频信号所有可用多径组件的瑞克接收机
US5446757A (en) * 1993-06-14 1995-08-29 Chang; Chen-Yi Code-division-multiple-access-system based on M-ary pulse-position modulated direct-sequence
US5412686A (en) * 1993-09-17 1995-05-02 Motorola Inc. Method and apparatus for power estimation in a communication system
GB2282300B (en) * 1993-09-22 1997-10-22 Northern Telecom Ltd Communications system and receiver devices therefor
US5446727A (en) * 1993-11-30 1995-08-29 Motorola Inc. Method and apparatus for time aligning signals for reception in a code-division multiple access communication system
US5418813A (en) * 1993-12-06 1995-05-23 Motorola, Inc. Method and apparatus for creating a composite waveform
US5490148A (en) * 1993-12-15 1996-02-06 Motorola, Inc. Bit error rate estimator
FI94579C (fi) * 1994-01-12 1995-09-25 Nokia Mobile Phones Ltd Tiedonsiirtomenetelmä
US5768684A (en) * 1994-03-04 1998-06-16 Motorola, Inc. Method and apparatus for bi-directional power control in a digital communication system
JP3202125B2 (ja) * 1994-03-10 2001-08-27 沖電気工業株式会社 符号分割多元接続システム
US5497395A (en) * 1994-04-04 1996-03-05 Qualcomm Incorporated Method and apparatus for modulating signal waveforms in a CDMA communication system
CA2145566C (en) * 1994-04-29 1999-12-28 Nambirajan Seshadri Methods of and devices for enhancing communications that use spread spectrum technology
US5544156A (en) * 1994-04-29 1996-08-06 Telefonaktiebolaget Lm Ericsson Direct sequence CDMA coherent uplink detector
US5751739A (en) * 1994-04-29 1998-05-12 Lucent Technologies, Inc. Methods of and devices for enhancing communications that use spread spectrum technology
US5519779A (en) * 1994-08-05 1996-05-21 Motorola, Inc. Method and apparatus for inserting signaling in a communication system
US5559828A (en) * 1994-05-16 1996-09-24 Armstrong; John T. Transmitted reference spread spectrum communication using a single carrier with two mutually orthogonal modulated basis vectors
WO1995035615A1 (en) * 1994-06-22 1995-12-28 Ntt Mobile Communications Network Inc. Synchronous detector and synchronizing method for digital communication receiver
EP0716520B1 (en) * 1994-06-23 2004-05-12 NTT DoCoMo, Inc. Cdma demodulation circuit and demodulating method
US5619524A (en) * 1994-10-04 1997-04-08 Motorola, Inc. Method and apparatus for coherent communication reception in a spread-spectrum communication system
US5659573A (en) * 1994-10-04 1997-08-19 Motorola, Inc. Method and apparatus for coherent reception in a spread-spectrum receiver
US5822359A (en) * 1994-10-17 1998-10-13 Motorola, Inc. Coherent random access channel in a spread-spectrum communication system and method
FI97180C (fi) * 1994-11-03 1996-10-25 Nokia Mobile Phones Ltd Menetelmä kanavan estimoimiseksi ja vastaanotin
US5623485A (en) * 1995-02-21 1997-04-22 Lucent Technologies Inc. Dual mode code division multiple access communication system and method
US5640431A (en) * 1995-03-10 1997-06-17 Motorola, Inc. Method and apparatus for offset frequency estimation for a coherent receiver
US5498512A (en) * 1995-03-10 1996-03-12 Eastman Kodak Company Photographic element having a transparent magnetic recording layer
US7929498B2 (en) 1995-06-30 2011-04-19 Interdigital Technology Corporation Adaptive forward power control and adaptive reverse power control for spread-spectrum communications
ZA965340B (en) 1995-06-30 1997-01-27 Interdigital Tech Corp Code division multiple access (cdma) communication system
US7123600B2 (en) 1995-06-30 2006-10-17 Interdigital Technology Corporation Initial power control for spread-spectrum communications
US7020111B2 (en) 1996-06-27 2006-03-28 Interdigital Technology Corporation System for using rapid acquisition spreading codes for spread-spectrum communications
US6885652B1 (en) 1995-06-30 2005-04-26 Interdigital Technology Corporation Code division multiple access (CDMA) communication system
US7072380B2 (en) 1995-06-30 2006-07-04 Interdigital Technology Corporation Apparatus for initial power control for spread-spectrum communications
US5677930A (en) * 1995-07-19 1997-10-14 Ericsson Inc. Method and apparatus for spread spectrum channel estimation
US6018651A (en) * 1995-11-29 2000-01-25 Motorola, Inc. Radio subscriber unit having a switched antenna diversity apparatus and method therefor
US6167037A (en) * 1996-03-05 2000-12-26 Ntt Mobile Communications Networks Inc. Signal transmitting method, transmitter, receiver, and spread-spectrum code synchronizing method for mobile communication system
JP2934185B2 (ja) * 1996-03-15 1999-08-16 松下電器産業株式会社 Ｃｄｍａセルラ無線基地局装置および移動局装置および送信方法
US5737327A (en) * 1996-03-29 1998-04-07 Motorola, Inc. Method and apparatus for demodulation and power control bit detection in a spread spectrum communication system
FR2747870B1 (fr) * 1996-04-19 1998-11-06 Wavecom Sa Signal numerique a blocs de reference multiples pour l'estimation de canal, procedes d'estimation de canal et recepteurs correspondants
US6678311B2 (en) 1996-05-28 2004-01-13 Qualcomm Incorporated High data CDMA wireless communication system using variable sized channel codes
US6396804B2 (en) * 1996-05-28 2002-05-28 Qualcomm Incorporated High data rate CDMA wireless communication system
US5930230A (en) * 1996-05-28 1999-07-27 Qualcomm Incorporated High data rate CDMA wireless communication system
US5926500A (en) * 1996-05-28 1999-07-20 Qualcomm Incorporated Reduced peak-to-average transmit power high data rate CDMA wireless communication system
US5784366A (en) * 1996-08-27 1998-07-21 Transsky Corp. Wideband code-division-multiple access system and method
US5757846A (en) * 1996-08-30 1998-05-26 Vasudevan; Subramanian CDMA communication system and method with dual-mode receiver
JP3796870B2 (ja) * 1997-01-21 2006-07-12 ソニー株式会社 受信装置及び受信方法、並びに携帯電話システムの端末装置
US6360079B2 (en) * 1997-02-12 2002-03-19 Interdigital Technology Corporation Global channel power control to minimize spillover in a wireless communication environment
US7046682B2 (en) 1997-02-12 2006-05-16 Elster Electricity, Llc. Network-enabled, extensible metering system
AR011440A1 (es) 1997-02-12 2000-08-16 Abb Power T & D Co DISPOSICIoN DE MEDICIoN ELECTRONICA
US6072785A (en) * 1997-03-04 2000-06-06 At&T Corp Differential PSK signalling in CDMA networks
US6094428A (en) * 1997-04-30 2000-07-25 Motorola, Inc. Method and apparatus for transmission and reception of a transmission rate in a CDMA communication system
ES2286851T3 (es) * 1997-05-14 2007-12-01 Qualcomm Incorporated Unidad de abonado con fuentes plurales de datos y control para sistema de comunicacion inalambrica cdma.
US6021309A (en) * 1997-05-22 2000-02-01 Globalstar L.P. Channel frequency allocation for multiple-satellite communication network
US6088659A (en) * 1997-09-11 2000-07-11 Abb Power T&D Company Inc. Automated meter reading system
US20020051434A1 (en) * 1997-10-23 2002-05-02 Ozluturk Fatih M. Method for using rapid acquisition spreading codes for spread-spectrum communications
US6408019B1 (en) 1997-12-29 2002-06-18 Georgia Tech Research Corporation System and method for communication using noise
US6208632B1 (en) 1998-01-29 2001-03-27 Sharp Laboratories Of America System and method for CDMA channel estimation
US6292912B1 (en) * 1998-02-27 2001-09-18 Western Digital Technologies, Inc. Disk drive having built-in self-test system for characterizing performance of the drive
US6085104A (en) * 1998-03-25 2000-07-04 Sharp Laboratories Of America, Inc. Pilot aided, time-varying finite impulse response, adaptive channel matching receiving system and method
US6724741B1 (en) 1998-06-29 2004-04-20 L-3 Communications Corporation PN code selection for synchronous CDMA
US6091760A (en) * 1998-06-29 2000-07-18 L-3 Communications Corporation Non-recursively generated orthogonal PN codes for variable rate CDMA
ATE270482T1 (de) 1998-07-21 2004-07-15 Nokia Corp Schätzung der kanalimpulsantwort mittels der streuung vom empfangenen signal
GB2340352B (en) * 1998-07-31 2003-05-07 Roke Manor Research Sampling means for use with rake receiver
US6643338B1 (en) * 1998-10-07 2003-11-04 Texas Instruments Incorporated Space time block coded transmit antenna diversity for WCDMA
US6700902B1 (en) 1998-10-19 2004-03-02 Elster Electricity, Llc Method and system for improving wireless data packet delivery
US6128330A (en) 1998-11-24 2000-10-03 Linex Technology, Inc. Efficient shadow reduction antenna system for spread spectrum
KR100388980B1 (ko) 1998-11-26 2003-10-10 엘지정보통신주식회사 시디엠에이통신시스템의데이터송신장치및방법
US6526103B1 (en) * 1998-12-23 2003-02-25 Nortel Networks Limited Multi-stage receiver
US6587517B1 (en) * 1998-12-23 2003-07-01 Nortel Networks Limited Multi-stage receiver
US6721349B1 (en) 1999-01-28 2004-04-13 Qualcomm Incorporated Method and apparatus for reducing peak-to-average ratio in a CDMA communication system
AU1596901A (en) 1999-11-11 2001-06-06 Voyan Technology Method and apparatus for the prediction and optimization in impaired communication systems
US6970560B1 (en) 1999-11-11 2005-11-29 Tokyo Electron Limited Method and apparatus for impairment diagnosis in communication systems
US6970415B1 (en) 1999-11-11 2005-11-29 Tokyo Electron Limited Method and apparatus for characterization of disturbers in communication systems
US6870901B1 (en) 1999-11-11 2005-03-22 Tokyo Electron Limited Design and architecture of an impairment diagnosis system for use in communications systems
US6978015B1 (en) 1999-11-11 2005-12-20 Tokyo Electron Limited Method and apparatus for cooperative diagnosis of impairments and mitigation of disturbers in communication systems
US6463279B1 (en) * 1999-11-17 2002-10-08 Globalstar L.P. Channel frequency allocation for multiple-satellite communication network
EP1234402B1 (en) * 1999-12-01 2006-03-08 Telefonaktiebolaget LM Ericsson (publ) Bit error estimates from pilot signals
US6301291B1 (en) 2000-02-03 2001-10-09 Tantivy Communications, Inc. Pilot symbol assisted modulation and demodulation in wireless communication systems
US6801564B2 (en) * 2000-02-23 2004-10-05 Ipr Licensing, Inc. Reverse link correlation filter in wireless communication systems
US6542559B1 (en) * 2000-05-15 2003-04-01 Qualcomm, Incorporated Decoding method and apparatus
JP3464645B2 (ja) * 2000-08-30 2003-11-10 松下電器産業株式会社 無線受信装置
US6977974B1 (en) 2000-11-20 2005-12-20 At&T Corp. De-modulation of MOK(M-ary orthogonal modulation)
US7580488B2 (en) * 2000-11-29 2009-08-25 The Penn State Research Foundation Broadband modulation/demodulation apparatus and a method thereof
US7697594B2 (en) * 2001-03-30 2010-04-13 Texas Instruments Incorporated Method and apparatus for regenerative based interference cancellation within a communication system
CN1110163C (zh) * 2001-04-16 2003-05-28 华为技术有限公司 码分多址通信系统中平坦衰落信道的估计方法及其装置
US7088955B2 (en) * 2001-07-16 2006-08-08 Qualcomm Inc. Method and apparatus for acquiring and tracking pilots in a CDMA communication system
GB0120535D0 (en) * 2001-08-23 2001-10-17 Roke Manor Research Space-time interleaving transmit diversity
US7116957B2 (en) * 2001-10-22 2006-10-03 Qualcomm Incorporated Velocity responsive filtering for pilot signal reception
US6867707B1 (en) 2002-04-24 2005-03-15 Elster Electricity, Llc Automated on-site meter registration confirmation using a portable, wireless computing device
US7119713B2 (en) 2002-06-27 2006-10-10 Elster Electricity, Llc Dynamic self-configuring metering network
US20040113810A1 (en) 2002-06-28 2004-06-17 Mason Robert T. Data collector for an automated meter reading system
US20040165683A1 (en) * 2002-09-04 2004-08-26 Gupta Alok Kumar Channel estimation for communication systems
US7161973B2 (en) * 2002-12-17 2007-01-09 Sbc Properties, L.P. Pilot aided adaptive minimum mean square interference cancellation and detection
TW200428839A (en) * 2003-02-20 2004-12-16 Matsushita Electric Industrial Co Ltd Frame synchronization method
JP4470377B2 (ja) * 2003-02-28 2010-06-02 株式会社日立製作所 移動通信システムにおける伝搬路推定方法
US7227350B2 (en) 2004-03-18 2007-06-05 Elster Electricity, Llc Bias technique for electric utility meter
US7315162B2 (en) 2004-03-18 2008-01-01 Elster Electricity, Llc Reducing power consumption of electrical meters
US7262709B2 (en) 2004-04-26 2007-08-28 Elster Electricity, Llc System and method for efficient configuration in a fixed network automated meter reading system
US7239250B2 (en) 2004-04-26 2007-07-03 Elster Electricity, Llc System and method for improved transmission of meter data
US7187906B2 (en) 2004-04-26 2007-03-06 Elster Electricity, Llc Method and system for configurable qualification and registration in a fixed network automated meter reading system
US7142106B2 (en) 2004-06-15 2006-11-28 Elster Electricity, Llc System and method of visualizing network layout and performance characteristics in a wireless network
US7702594B2 (en) 2004-09-24 2010-04-20 Elster Electricity, Llc System and method for automated configuration of meters
US7176807B2 (en) 2004-09-24 2007-02-13 Elster Electricity, Llc System for automatically enforcing a demand reset in a fixed network of electricity meters
US7742430B2 (en) 2004-09-24 2010-06-22 Elster Electricity, Llc System for automated management of spontaneous node migration in a distributed fixed wireless network
US7170425B2 (en) 2004-09-24 2007-01-30 Elster Electricity, Llc System and method for creating multiple operating territories within a meter reading system
US7327998B2 (en) 2004-12-22 2008-02-05 Elster Electricity, Llc System and method of providing a geographic view of nodes in a wireless network
US7308370B2 (en) 2005-03-22 2007-12-11 Elster Electricity Llc Using a fixed network wireless data collection system to improve utility responsiveness to power outages
US7352795B2 (en) * 2005-05-04 2008-04-01 Harris Corporation System and method for communicating data using constant amplitude waveform with hybrid orthogonal and MSK or GMSK modulation
EP1746756B1 (en) * 2005-07-21 2013-01-16 STMicroelectronics Srl A method and system for decoding signals, corresponding receiver and computer program product
US7310391B2 (en) * 2005-08-12 2007-12-18 At&T Corp. De-modulation of MOK(M-ary orthogonal modulation)
US7495578B2 (en) 2005-09-02 2009-02-24 Elster Electricity, Llc Multipurpose interface for an automated meter reading device
US7308369B2 (en) 2005-09-28 2007-12-11 Elster Electricity Llc Ensuring automatic season change demand resets in a mesh type network of telemetry devices
US7427927B2 (en) 2006-02-16 2008-09-23 Elster Electricity, Llc In-home display communicates with a fixed network meter reading system
US7545285B2 (en) 2006-02-16 2009-06-09 Elster Electricity, Llc Load control unit in communication with a fixed network meter reading system
US8073384B2 (en) 2006-12-14 2011-12-06 Elster Electricity, Llc Optimization of redundancy and throughput in an automated meter data collection system using a wireless network
US8320302B2 (en) 2007-04-20 2012-11-27 Elster Electricity, Llc Over the air microcontroller flash memory updates
AU2008340227B2 (en) 2007-12-26 2013-05-09 Elster Electricity, Llc. Optimized data collection in a wireless fixed network metering system
US8077770B2 (en) * 2008-05-20 2011-12-13 Panasonic Corporation Methods and apparatus for reducing modulation signal bandwidth in polar modulation transmitters
US8525692B2 (en) 2008-06-13 2013-09-03 Elster Solutions, Llc Techniques for limiting demand from an electricity meter with an installed relay
US8203463B2 (en) 2009-02-13 2012-06-19 Elster Electricity Llc Wakeup and interrogation of meter-reading devices using licensed narrowband and unlicensed wideband radio communication
US9429639B2 (en) 2012-05-01 2016-08-30 Ohio University Terrestrial position and timing system

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US509204A (en) * 1893-11-21 Propeller
US4365338A (en) * 1980-06-27 1982-12-21 Harris Corporation Technique for high rate digital transmission over a dynamic dispersive channel
US4730340A (en) * 1980-10-31 1988-03-08 Harris Corp. Programmable time invariant coherent spread symbol correlator
US4559633A (en) * 1982-10-22 1985-12-17 Hitachi, Ltd. Spread spectrum system
DE3403715A1 (de) * 1984-02-03 1985-08-08 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Digitales zellenfunksystem mit zeitmultiplex
US4901307A (en) * 1986-10-17 1990-02-13 Qualcomm, Inc. Spread spectrum multiple access communication system using satellite or terrestrial repeaters
US4811357A (en) * 1988-01-04 1989-03-07 Paradyne Corporation Secondary channel for digital modems using spread spectrum subliminal induced modulation
CH676179A5 (fi) * 1988-09-29 1990-12-14 Ascom Zelcom Ag
FR2653286A1 (fr) * 1989-10-12 1991-04-19 Europ Agence Spatiale Procede et circuit d'acquisition de code pour recepteur de signal a spectre etale.
US5109390A (en) * 1989-11-07 1992-04-28 Qualcomm Incorporated Diversity receiver in a cdma cellular telephone system
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
US5056109A (en) * 1989-11-07 1991-10-08 Qualcomm, Inc. Method and apparatus for controlling transmission power in a cdma cellular mobile telephone system
US5029184A (en) * 1990-01-24 1991-07-02 Harris Corporation Low probability of intercept communication system
US5103459B1 (en) * 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
EP0486833B1 (de) * 1990-11-22 1995-02-15 Ascom Tech Ag Empfänger für ein DSSS-Signal
US5107225A (en) * 1990-11-30 1992-04-21 Qualcomm Incorporated High dynamic range closed loop automatic gain control circuit

Also Published As

Publication number Publication date
CA2134230A1 (en) 1994-09-15
BR9404420A (pt) 1999-06-15
CA2134230C (en) 1999-09-21
SE9403860D0 (sv) 1994-11-10
WO1994021065A1 (en) 1994-09-15
CN1048606C (zh) 2000-01-19
EP0643889A1 (en) 1995-03-22
SG46295A1 (en) 1998-02-20
EP0643889A4 (en) 1997-12-10
CN1105510A (zh) 1995-07-19
PL306002A1 (en) 1995-02-20
EP0643889B1 (en) 2002-06-05
SE520542C2 (sv) 2003-07-22
DE69430720T2 (de) 2002-12-05
MY125586A (en) 2006-08-30
PL174713B1 (pl) 1998-09-30
JP3464002B2 (ja) 2003-11-05
TW295754B (fi) 1997-01-11
SE9403860L (sv) 1994-12-27
FI112010B (fi) 2003-10-15
US5329547A (en) 1994-07-12
JPH07506713A (ja) 1995-07-20
DE69430720D1 (de) 2002-07-11
FI945336A0 (fi) 1994-11-11

Similar Documents

Publication Publication Date Title
FI945336A0 (fi) Menetelmä ja laite koherentin viestinnän suorittamiseksi hajaspektriviestintäjärjestelmässä
FI972589A7 (fi) Menetelmä ja laite Walsh-siirtymän käyttämiseksi hajaspektritietoliikennejärjestelmässä
FI962326A7 (fi) Menetelmä ja laite viestinnän koherentiksi vastaanottamiseksi hajaspektriviestintäjärjestelmässä
FI955063A7 (fi) Menetelmä ja laite useiden hajotuskoodien käyttämiseksi viestintäjärjestelmässä
FI963273A7 (fi) Suojuskokoonpano ja suojausmenetelmä, jotka soveltuvat käytettäväksi viestintälaitteessa
FI952404A7 (fi) Menetelmä ja laite tehon estimoimiseksi viestintäjärjestelmässä
FI965257A7 (fi) Menetelmä ja laite sijainnin löytämiseksi CDMA-järjestelmässä
FI961113L (fi) Menetelmä ja laite lähetysdatan nopeuden määrittämiseksi monen käyttäjän tietoliikennejärjestelmässä
FI972852A0 (fi) Menetelmä ja laite kohinan vaimentamiseksi viestintäjärjestelmässä
FI961150A7 (fi) Järjestelmä ja menetelmä käyttäjän häiriön simuloimiseksi hajaspektritietoliikenneverkossa
FI965195A0 (fi) Menetelmä ja laite tietoliikenteen kanavanvaihdon suorittamiseksi viestintäjärjestelmässä
FI950159A7 (fi) Menetelmä ja laite matkaviestinjärjestelmän kanavien käyttämisetä varten
FI982518A0 (fi) Menetelmä ja laite hiljaisen keilan aikaansaamiseksi tietoliikennejärjestelmässä
FI961294L (fi) Kehittynyt menetelmä ja laite etsintätunnistuksen suorittamiseksi CDMA-tietoliikennejärjestelmässä
FI953692A0 (fi) Menetelmä ja laite viestinnän suorittamiseksi alueelisten kokonaisuuksien yli viestintäjärjestelmässä
EE9900107A (et) Meetod ja aparatuur ajajaotussignaalide genereerimiseks raadiosideseadmes
FI982579A7 (fi) Menetelmä ja laite suurinopeuksiseen datalähetykseen hajaspektritietoliikennejärjestelmässä
KR970700962A (ko) 멀티유저-간섭 감소 장치 및 방법과 코드분할 다중 액세스 통신 시스템(method and apparatus for multiuser-interference reduction)
AU6214394A (en) Apparatus and method for parallel computation
FI961447A7 (fi) Menetelmä ja laite tukiaseman lisäämiseksi ja poistamiseksi tietoliikennejärjestelmässä
FI962573A7 (fi) Menetelmä ja laite nopean Hadamard-muunnoksen suorittamiseksi
DE69534524D1 (de) Verfahren und Gerät zur Synchronisierung in einem Direktsequenzspreizspektrumkommunikationssystem
FI955980A0 (fi) Menetelmä ja laite uudelleenjärjestämiseen
FI963245A7 (fi) Menetelmä ja laite häiriöiden lieventämiseksi viestintäjärjestelmässä
FI973851A7 (fi) Menetelmä ja laite adaptiivisen reitityksen suorittamiseksi satelliitteihin perustuvassa viestintäjärjestelmässä

Legal Events

Date Code Title Description
PC Transfer of assignment of patent

Owner name: MOTOROLA MOBILITY, INC.

Free format text: MOTOROLA MOBILITY, INC.

MA Patent expired