CA2257211A1 - Subscriber unit for a cdma wireless communication system - Google Patents

Subscriber unit for a cdma wireless communication system

Info

Publication number
CA2257211A1
CA2257211A1 CA002257211A CA2257211A CA2257211A1 CA 2257211 A1 CA2257211 A1 CA 2257211A1 CA 002257211 A CA002257211 A CA 002257211A CA 2257211 A CA2257211 A CA 2257211A CA 2257211 A1 CA2257211 A1 CA 2257211A1
Authority
CA
Canada
Prior art keywords
code
modulated
wireless communication
data
cdma wireless
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.)
Granted
Application number
CA002257211A
Other languages
French (fr)
Other versions
CA2257211C (en
Inventor
Joseph P. Odenwalder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qualcomm Inc
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Publication of CA2257211A1 publication Critical patent/CA2257211A1/en
Application granted granted Critical
Publication of CA2257211C publication Critical patent/CA2257211C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0059—Convolutional codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2628—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA]
    • H04B7/264—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA] for data rate control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0071—Use of interleaving

Abstract

Method and apparatus for high rate CDMA wireless communication in which a set of individually gain adjusted subscriber channels are formed via the use of a set of orthoganol subchannel codes (W1) having a small number of PN spreading chips per orthogonal wave form period. Data to be transmitted via one of the transmit channels is low code rate error correction encoded (134) and sequence repeated before being modulated with one of the subchannel codes, gain adjusted (152, 154, 156, 158), and summed (160) with data modulated using the other subchannel codes. The resulting summed data is modulated using a user long code and a pseudorandom spreading code (PN code) and upconverted for transmission.
CA002257211A 1996-06-07 1997-06-09 Subscriber unit for a cdma wireless communication system Expired - Lifetime CA2257211C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/660,438 1996-06-07
US08/660,438 US5926500A (en) 1996-05-28 1996-06-07 Reduced peak-to-average transmit power high data rate CDMA wireless communication system
PCT/US1997/009959 WO1997047098A1 (en) 1996-06-07 1997-06-09 Subscriber unit for a cdma wireless communication system

Publications (2)

Publication Number Publication Date
CA2257211A1 true CA2257211A1 (en) 1997-12-11
CA2257211C CA2257211C (en) 2007-06-05

Family

ID=24649537

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002257211A Expired - Lifetime CA2257211C (en) 1996-06-07 1997-06-09 Subscriber unit for a cdma wireless communication system

Country Status (15)

Country Link
US (1) US5926500A (en)
EP (1) EP0903019B1 (en)
JP (1) JP3998716B2 (en)
CN (1) CN1108035C (en)
AR (1) AR007518A1 (en)
AT (1) ATE288154T1 (en)
AU (1) AU716705B2 (en)
BR (1) BR9709559B1 (en)
CA (1) CA2257211C (en)
DE (1) DE69732357T2 (en)
DK (1) DK0903019T3 (en)
ES (1) ES2236811T3 (en)
HK (1) HK1020462A1 (en)
PT (1) PT903019E (en)
WO (1) WO1997047098A1 (en)

Families Citing this family (70)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR970011690B1 (en) * 1994-11-22 1997-07-14 삼성전자 주식회사 Data receiver & transmitter of spread spectrum using pilot channel
ZA965340B (en) 1995-06-30 1997-01-27 Interdigital Tech Corp Code division multiple access (cdma) 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
US6678311B2 (en) 1996-05-28 2004-01-13 Qualcomm Incorporated High data CDMA wireless communication system using variable sized channel codes
JP3317866B2 (en) * 1996-12-20 2002-08-26 富士通株式会社 Spread spectrum communication system
US7787647B2 (en) 1997-01-13 2010-08-31 Micro Ear Technology, Inc. Portable system for programming hearing aids
US6173007B1 (en) * 1997-01-15 2001-01-09 Qualcomm Inc. High-data-rate supplemental channel for CDMA telecommunications system
US6898197B1 (en) * 1997-02-28 2005-05-24 Interdigital Technology Corporation Geolocation of a mobile terminal in a CDMA communication system
JP3349918B2 (en) * 1997-04-09 2002-11-25 沖電気工業株式会社 Communication system, transmitting device and receiving device
CA2463381C (en) * 1997-05-14 2011-11-22 Qualcomm Incorporated A subscriber unit and method for use in a wireless communication system
US6075792A (en) 1997-06-16 2000-06-13 Interdigital Technology Corporation CDMA communication system which selectively allocates bandwidth upon demand
US6285655B1 (en) * 1997-09-08 2001-09-04 Qualcomm Inc. Method and apparatus for providing orthogonal spot beams, sectors, and picocells
US20020051434A1 (en) * 1997-10-23 2002-05-02 Ozluturk Fatih M. Method for using rapid acquisition spreading codes for spread-spectrum communications
KR100269593B1 (en) 1997-12-02 2000-10-16 정선종 Orthogonal complex spreading based modulation method for multichannel transmission
DE69804502T2 (en) * 1997-12-12 2002-08-22 Thomson Licensing Sa IMPROVED RANGE / FINE DEGRADATION TO DIGITAL WIRELESS TELEPHONE SYSTEM
US6222832B1 (en) 1998-06-01 2001-04-24 Tantivy Communications, Inc. Fast Acquisition of traffic channels for a highly variable data rate reverse link of a CDMA wireless communication system
US7936728B2 (en) 1997-12-17 2011-05-03 Tantivy Communications, Inc. System and method for maintaining timing of synchronization messages over a reverse link of a CDMA wireless communication system
US9525923B2 (en) 1997-12-17 2016-12-20 Intel Corporation Multi-detection of heartbeat to reduce error probability
US7394791B2 (en) 1997-12-17 2008-07-01 Interdigital Technology Corporation Multi-detection of heartbeat to reduce error probability
US6125136A (en) * 1997-12-31 2000-09-26 Sony Corporation Method and apparatus for demodulating trellis coded direct sequence spread spectrum communication signals
JP3981899B2 (en) * 1998-02-26 2007-09-26 ソニー株式会社 Transmission method, transmission device, and reception device
US6108810A (en) * 1998-03-27 2000-08-22 Usa Digital Radio, Inc. Digital audio broadcasting method using puncturable convolutional code
KR100381012B1 (en) 1998-05-04 2003-08-19 한국전자통신연구원 Random connection device for reverse common channel in cdma scheme and method therefor
US7773566B2 (en) 1998-06-01 2010-08-10 Tantivy Communications, Inc. System and method for maintaining timing of synchronization messages over a reverse link of a CDMA wireless communication system
US8134980B2 (en) 1998-06-01 2012-03-13 Ipr Licensing, Inc. Transmittal of heartbeat signal at a lower level than heartbeat request
GB9814960D0 (en) * 1998-07-10 1998-09-09 Koninkl Philips Electronics Nv Coding device and communication system using the same
US6366779B1 (en) * 1998-09-22 2002-04-02 Qualcomm Incorporated Method and apparatus for rapid assignment of a traffic channel in digital cellular communication systems
JP3293781B2 (en) * 1998-09-25 2002-06-17 日本電気株式会社 Spread spectrum diversity transceiver
DE19845620A1 (en) * 1998-10-05 2000-04-27 Systemonic Ag Method for receiving spread spectrum signals
US6504827B1 (en) * 1998-12-18 2003-01-07 Lucent Technologies Inc. Discontinuous transmission on high speed data channels
US6721349B1 (en) 1999-01-28 2004-04-13 Qualcomm Incorporated Method and apparatus for reducing peak-to-average ratio in a CDMA communication system
SE513863C2 (en) * 1999-01-29 2000-11-20 Ericsson Telefon Ab L M Method and apparatus for cutting in a CDMA system
US6549564B1 (en) * 1999-04-08 2003-04-15 Telefonaktiebolaget Lm Ericsson (Publ) Random access in a mobile telecommunications system
US6584090B1 (en) * 1999-04-23 2003-06-24 Skyworks Solutions, Inc. System and process for shared functional block CDMA and GSM communication transceivers
JP3601816B2 (en) 1999-05-31 2004-12-15 韓國電子通信研究院 Modulator, terminal, and modulation method in mobile communication system
KR100406531B1 (en) * 1999-05-31 2003-11-22 한국전자통신연구원 Apparatus and method for modulating data message by employing orthogonal variable spreading factor (ovsf) codes in mobile communication system
US6504862B1 (en) * 1999-06-02 2003-01-07 Nortel Networks Limited Method and apparatus for reducing the ratio of peak to average power in a Gaussian signal including a CDMA signal
KR100585832B1 (en) * 1999-09-30 2006-06-01 에스케이 텔레콤주식회사 Apparatus and method for expanding channels in CDMA system
KR100354337B1 (en) * 1999-12-04 2002-09-28 한국과학기술원 Transmission and Receiving using Spreading Modulation for Spread Spectrum Communications and thereof Apparatus
FI19992790A (en) 1999-12-27 2001-06-28 Nokia Networks Oy Method for encoding the signal, transmitter and receiver
ATE527827T1 (en) 2000-01-20 2011-10-15 Starkey Lab Inc METHOD AND DEVICE FOR HEARING AID ADJUSTMENT
WO2001058044A2 (en) 2000-02-07 2001-08-09 Tantivy Communications, Inc. Minimal maintenance link to support synchronization
US6952454B1 (en) 2000-03-22 2005-10-04 Qualcomm, Incorporated Multiplexing of real time services and non-real time services for OFDM systems
US6289039B1 (en) * 2000-06-14 2001-09-11 Linex Technologies, Inc. Spread-spectrum communications utilizing variable throughput reduction
US6947180B1 (en) * 2000-09-12 2005-09-20 Motorola, Inc. Method for reducing analog facsimile call duration over CDMA
US6847677B1 (en) * 2000-09-29 2005-01-25 Qualcomm, Incorporated Method and apparatus for efficient Walsh covering and summing of signals in a communication system
US20030126545A1 (en) * 2001-10-05 2003-07-03 Tan Alfred Keng Tiong Non-linear code-division multiple access technology with improved detection algorithms and error correction coding
US6956891B2 (en) * 2000-11-15 2005-10-18 Go-Cdma Limited Method and apparatus for non-linear code-division multiple access technology
US8155096B1 (en) 2000-12-01 2012-04-10 Ipr Licensing Inc. Antenna control system and method
US6954448B2 (en) 2001-02-01 2005-10-11 Ipr Licensing, Inc. Alternate channel for carrying selected message types
US7551663B1 (en) * 2001-02-01 2009-06-23 Ipr Licensing, Inc. Use of correlation combination to achieve channel detection
FR2820564B1 (en) * 2001-02-02 2003-04-18 Nortel Networks Ltd MODULE SIGNAL TRANSMISSION AND RECEPTION DEVICES
US6961324B2 (en) 2001-05-02 2005-11-01 Ipr Licensing, Inc. System and method for interleaving compressed audio/video (A/V) data frames
SG185139A1 (en) 2001-06-13 2012-11-29 Ipr Licensing Inc Transmittal of heartbeat signal at a lower level than heartbeat request
US7046966B2 (en) * 2001-08-24 2006-05-16 Kyocera Wireless Corp. Method and apparatus for assigning data rate in a multichannel communication system
KR100452512B1 (en) * 2002-08-16 2004-10-13 엘지전자 주식회사 A spreading device and a method of walsh code for improving channel capacity
US7299402B2 (en) * 2003-02-14 2007-11-20 Telefonaktiebolaget Lm Ericsson (Publ) Power control for reverse packet data channel in CDMA systems
US8254358B2 (en) 2003-03-06 2012-08-28 Ericsson Ab Communicating a broadcast message to change data rates of mobile stations
JP2004297231A (en) * 2003-03-26 2004-10-21 Nec Corp Mobile communication system, radio base station apparatus and power control method used for them
US7180384B2 (en) * 2005-05-23 2007-02-20 Analog Devices, Inc. Universal signal modulators
US7729433B2 (en) * 2006-03-07 2010-06-01 Motorola, Inc. Method and apparatus for hybrid CDM OFDMA wireless transmission
US8920343B2 (en) 2006-03-23 2014-12-30 Michael Edward Sabatino Apparatus for acquiring and processing of physiological auditory signals
CA2601662A1 (en) 2006-09-18 2008-03-18 Matthias Mullenborn Wireless interface for programming hearing assistance devices
EP4346153A2 (en) * 2006-09-26 2024-04-03 Nokia Technologies Oy Apparatus, method and computer program product providing multiplexing for data-non-associated control channel
EP2070218A4 (en) * 2006-09-26 2014-06-18 Nokia Corp Apparatus, method and computer program product providing sequence modulation for uplink control signaling
GB0619530D0 (en) 2006-10-03 2006-11-15 Nokia Corp Signalling
US8010865B2 (en) 2007-01-30 2011-08-30 Via Telecom, Inc. System and method for encoding and decoding in wireless communication systems
AR067299A1 (en) 2007-03-30 2009-10-07 Interdigital Tech Corp POWER CONTROL IN ORTOGONAL SUB-CHANNELS IN WIRELESS COMMUNICATIONS SYSTEMS
EP2434640B1 (en) 2010-09-24 2012-12-05 Telefonaktiebolaget L M Ericsson (PUBL) Correction of imbalances in a complex intermediate frequency mixer
US9452565B2 (en) * 2013-06-14 2016-09-27 Zuiko Corporation Ultrasonic horn, welder provided therewith, and method of producing disposable diaper using ultrasonic horn

Family Cites Families (117)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2562180A (en) * 1949-04-12 1951-07-31 Curtiss Candy Company Article dispenser
US4361890A (en) * 1958-06-17 1982-11-30 Gte Products Corporation Synchronizing system
US3169171A (en) * 1962-07-17 1965-02-09 Stephen R Steinberg Disposable sanitary cover for telephones
US3310631A (en) * 1963-06-03 1967-03-21 Itt Communication system for the selective transmission of speech and data
US3715508A (en) * 1967-09-15 1973-02-06 Ibm Switching circuits employing orthogonal and quasi-orthogonal pseudo-random code sequences
US4179658A (en) * 1968-08-23 1979-12-18 The United States Of America As Represented By The Secretary Of The Army Secret-signalling system utilizing noise communication
DE2048055C1 (en) * 1970-09-30 1978-04-27 Siemens Ag, 1000 Berlin Und 8000 Muenchen Procedure for determining the
DE2054734C1 (en) * 1970-11-06 1980-10-23 Siemens Ag, 1000 Berlin Und 8000 Muenchen Method for the synchronization of a transmission system
DE2245189C3 (en) * 1971-09-18 1980-09-25 Fujitsu Ltd., Kawasaki, Kanagawa (Japan) Apparatus for the transmission of a vestigial sideband carrier-modulated multilevel signal and a synchronizing pilot signal
US3795864A (en) * 1972-12-21 1974-03-05 Western Electric Co Methods and apparatus for generating walsh functions
US4002991A (en) * 1975-01-29 1977-01-11 Nippon Gakki Seizo Kabushiki Kaisha Pilot signal extracting circuitry
US4052565A (en) * 1975-05-28 1977-10-04 Martin Marietta Corporation Walsh function signal scrambler
US4017798A (en) * 1975-09-08 1977-04-12 Ncr Corporation Spread spectrum demodulator
US4048563A (en) * 1975-10-17 1977-09-13 The United States Of America As Represented By The Secretary Of The Navy Carrier-modulated coherency monitoring system
US4020461A (en) * 1975-11-18 1977-04-26 Trw Inc. Method of and apparatus for transmitting and receiving coded digital signals
US4092601A (en) * 1976-06-01 1978-05-30 The Charles Stark Draper Laboratory, Inc. Code tracking signal processing system
US4100376A (en) * 1977-01-03 1978-07-11 Raytheon Company Pilot tone demodulator
US4217586A (en) * 1977-05-16 1980-08-12 General Electric Company Channel estimating reference signal processor for communication system adaptive antennas
US4164628A (en) * 1977-06-06 1979-08-14 International Telephone And Telegraph Corporation Processor for multiple, continuous, spread spectrum signals
US4188580A (en) * 1977-10-20 1980-02-12 Telesync Corporation Secure communication system
US4308617A (en) * 1977-11-07 1981-12-29 The Bendix Corporation Noiselike amplitude and phase modulation coding for spread spectrum transmissions
US4193031A (en) * 1978-03-13 1980-03-11 Purdue Research Foundation Method of signal transmission and reception utilizing wideband signals
US4222115A (en) * 1978-03-13 1980-09-09 Purdue Research Foundation Spread spectrum apparatus for cellular mobile communication systems
US4189677A (en) * 1978-03-13 1980-02-19 Purdue Research Foundation Demodulator unit for spread spectrum apparatus utilized in a cellular mobile communication system
US4291409A (en) * 1978-06-20 1981-09-22 The Mitre Corporation Spread spectrum communications method and apparatus
US4203070A (en) * 1978-08-08 1980-05-13 The Charles Stark Draper Laboratory, Inc. Pseudo-random-number code detection and tracking system
US4203071A (en) * 1978-08-08 1980-05-13 The Charles Stark Draper Laboratory, Inc. Pseudo-random-number-code-detection and tracking system
US4247939A (en) * 1978-11-09 1981-01-27 Sanders Associates, Inc. Spread spectrum detector
US4301530A (en) * 1978-12-18 1981-11-17 The United States Of America As Represented By The Secretary Of The Army Orthogonal spread spectrum time division multiple accessing mobile subscriber access system
US4313211A (en) * 1979-08-13 1982-01-26 Bell Telephone Laboratories, Incorporated Single sideband receiver with pilot-based feed forward correction for motion-induced distortion
US4287577A (en) * 1979-09-27 1981-09-01 Communications Satellite Corporation Interleaved TDMA terrestrial interface buffer
US4291410A (en) * 1979-10-24 1981-09-22 Rockwell International Corporation Multipath diversity spread spectrum receiver
US4276646A (en) * 1979-11-05 1981-06-30 Texas Instruments Incorporated Method and apparatus for detecting errors in a data set
IT1119972B (en) * 1979-12-13 1986-03-19 Cselt Centro Studi Lab Telecom PROCEDURE AND DEVICE FOR THE TRANSMISSION OF ANALOG SIGNALS IN A DIFFUSED SPECTRUM COMMUNICATION SYSTEM
NL189062C (en) * 1980-02-15 1992-12-16 Philips Nv METHOD AND SYSTEM FOR TRANSFER OF DATA PACKAGES.
US4309769A (en) * 1980-02-25 1982-01-05 Harris Corporation Method and apparatus for processing spread spectrum signals
DE3010969A1 (en) 1980-03-21 1981-10-01 Siemens AG, 1000 Berlin und 8000 München PCM SYSTEM WITH TRANSMITTER ENCODER AND RECEIVED DESIGNER
DE3012513C2 (en) * 1980-03-31 1984-04-26 Siemens AG, 1000 Berlin und 8000 München Procedure for monitoring analog and digital radio links
US4451916A (en) * 1980-05-12 1984-05-29 Harris Corporation Repeatered, multi-channel fiber optic communication network having fault isolation system
DE3023375C1 (en) * 1980-06-23 1987-12-03 Siemens Ag, 1000 Berlin Und 8000 Muenchen, De
US4730340A (en) * 1980-10-31 1988-03-08 Harris Corp. Programmable time invariant coherent spread symbol correlator
US4361891A (en) * 1980-12-22 1982-11-30 General Electric Company Spread spectrum signal estimator
US4434323A (en) * 1981-06-29 1984-02-28 Motorola, Inc. Scrambler key code synchronizer
JPS592463A (en) * 1982-06-29 1984-01-09 Fuji Xerox Co Ltd Control system of retransmission
GB2125654B (en) 1982-08-13 1986-01-29 Hazeltine Corp Intranetwork code division multiple access communication system
US4472815A (en) * 1982-09-27 1984-09-18 The United States Of America As Represented By The Secretary Of The Army Pulse interference cancelling system for spread spectrum signals
US4484335A (en) * 1982-10-14 1984-11-20 E-Systems, Inc. Method and apparatus for despreading a spread spectrum signal at baseband
US4559633A (en) * 1982-10-22 1985-12-17 Hitachi, Ltd. Spread spectrum system
US4551853A (en) * 1982-10-28 1985-11-05 Thomson Csf Apparatus for processing speech in radioelectric transmitter/receiver equipment suitable for transmitting and receiving speech
US4460992A (en) * 1982-11-04 1984-07-17 The United States Of America As Represented By The Secretary Of The Army Orthogonal CDMA system utilizing direct sequence pseudo noise codes
JPS59115640A (en) 1982-12-22 1984-07-04 Nec Corp System for transmitting privacy signal
US4501002A (en) * 1983-02-28 1985-02-19 Auchterlonie Richard C Offset QPSK demodulator and receiver
US4512024A (en) * 1983-06-29 1985-04-16 The United States Of America As Represented By The Secretary Of The Army Impulse autocorrelation function communications system
US4649549A (en) * 1983-08-30 1987-03-10 Sophisticated Signals And Circuits Apparatus for synchronizing linear PN sequences
US4688035A (en) * 1983-11-28 1987-08-18 International Business Machines Corp. End user data stream syntax
US4561089A (en) * 1984-03-23 1985-12-24 Sangamo Weston, Inc. Correlation detectors for use in direct sequence spread spectrum signal receiver
US4601047A (en) * 1984-03-23 1986-07-15 Sangamo Weston, Inc. Code division multiplexer using direct sequence spread spectrum signal processing
US4567588A (en) * 1984-03-23 1986-01-28 Sangamo Weston, Inc. Synchronization system for use in direct sequence spread spectrum signal receiver
US4607375A (en) * 1984-10-17 1986-08-19 Itt Corporation Covert communication system
US4621365A (en) * 1984-11-16 1986-11-04 Hughes Aircraft Company Synchronization preamble correlation detector and frequency estimator
US4635221A (en) * 1985-01-18 1987-01-06 Allied Corporation Frequency multiplexed convolver communication system
US4630283A (en) * 1985-07-17 1986-12-16 Rca Corporation Fast acquisition burst mode spread spectrum communications system with pilot carrier
US4665514A (en) * 1985-08-02 1987-05-12 American Telephone And Telegraph Company, At&T Bell Laboratories Integrated voice/data network
US4785463A (en) * 1985-09-03 1988-11-15 Motorola, Inc. Digital global positioning system receiver
US4669089A (en) * 1985-09-30 1987-05-26 The Boeing Company Suppressed clock pulse-duration modulator for direct sequence spread spectrum transmission systems
US4672658A (en) * 1985-10-16 1987-06-09 At&T Company And At&T Bell Laboratories Spread spectrum wireless PBX
US4700341A (en) 1985-10-30 1987-10-13 Racal Data Communications Inc. Stochastic time division multiplexing
US4703474A (en) * 1986-02-28 1987-10-27 American Telephone And Telegraph Company, At&T Bell Laboratories Spread spectrum code-division-multiple-access (SS-CDMA) lightwave communication system
US4754450A (en) * 1986-03-25 1988-06-28 Motorola, Inc. TDM communication system for efficient spectrum utilization
DE3689979T2 (en) 1986-03-25 1995-01-26 Motorola Inc METHOD AND DEVICE FOR CONTROLLING A TIME MULTIPLEX COMMUNICATION DEVICE.
JP2521925B2 (en) 1986-10-14 1996-08-07 日本電気株式会社 Convolutional encoder
US4901307A (en) * 1986-10-17 1990-02-13 Qualcomm, Inc. Spread spectrum multiple access communication system using satellite or terrestrial repeaters
US4813040A (en) * 1986-10-31 1989-03-14 Futato Steven P Method and apparatus for transmitting digital data and real-time digitalized voice information over a communications channel
NL8700930A (en) * 1987-04-17 1988-11-16 Hollandse Signaalapparaten Bv SYSTEM OF ORTHOGONALLY OPERATING CODE GENERATORS, RADIOS EQUIPPED WITH A CODE GENERATOR AND CODE GENERATORS OF SUCH A SYSTEM.
US4809295A (en) * 1987-04-20 1989-02-28 Unisys Corporation Code lengthening system
US5199045A (en) * 1987-06-09 1993-03-30 Canon Kabushiki Kaisha Communication apparatus
JP2624964B2 (en) * 1987-06-09 1997-06-25 キヤノン株式会社 Wireless communication device
US4894842A (en) * 1987-10-15 1990-01-16 The Charles Stark Draper Laboratory, Inc. Precorrelation digital spread spectrum receiver
FR2629931B1 (en) * 1988-04-08 1991-01-25 Lmt Radio Professionelle ASYNCHRONOUS DIGITAL CORRELATOR AND DEMODULATORS COMPRISING SUCH A CORRELATOR
JPH0234059A (en) * 1988-07-25 1990-02-05 Mitsubishi Electric Corp Processing system for node equipment
US4980897A (en) * 1988-08-12 1990-12-25 Telebit Corporation Multi-channel trellis encoder/decoder
JPH06103873B2 (en) * 1988-09-01 1994-12-14 三菱電機株式会社 Orthogonal sequence generation method
JPH069349B2 (en) * 1988-09-16 1994-02-02 日本ビクター株式会社 Spread spectrum communication system
US5260969A (en) * 1988-11-14 1993-11-09 Canon Kabushiki Kaisha Spectrum diffusion communication receiving apparatus
US4951150A (en) * 1989-03-01 1990-08-21 Foresight, Inc. Optical projection system
US4942591A (en) * 1989-03-07 1990-07-17 Agilis Corporation Multiple phase PSK demodulator
JP2603717B2 (en) * 1989-03-09 1997-04-23 三菱電機株式会社 Cyclic data transmission method
US5022046A (en) * 1989-04-14 1991-06-04 The United States Of America As Represented By The Secretary Of The Air Force Narrowband/wideband packet data communication system
US5274836A (en) * 1989-08-08 1993-12-28 Gde Systems, Inc. Multiple encoded carrier data link
GB2236454A (en) * 1989-09-01 1991-04-03 Philips Electronic Associated Communications system for radio telephones
JP2733110B2 (en) 1989-09-19 1998-03-30 日本電信電話株式会社 Wireless signal transmission method
US4962507A (en) * 1989-09-29 1990-10-09 Hughes Aircraft Company Feed forward spread spectrum signal processor
US5056109A (en) * 1989-11-07 1991-10-08 Qualcomm, Inc. Method and apparatus for controlling transmission power in a cdma cellular mobile telephone system
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
US5005169A (en) * 1989-11-16 1991-04-02 Westinghouse Electric Corp. Frequency division multiplex guardband communication system for sending information over the guardbands
US5136586A (en) * 1989-12-04 1992-08-04 Academy Of Applied Science Method and apparatus for telephone line multiplex channeling of toll-quality voice and digital information
CA2032765C (en) * 1989-12-21 1995-12-12 Hidetaka Yoshikawa Variable rate encoding and communicating apparatus
US5091940A (en) * 1990-01-16 1992-02-25 Hughes Aircraft Company Data router with burst shuffling and deshuffling output buffers
JP2540968B2 (en) 1990-02-27 1996-10-09 日本電気株式会社 Multidirectional communication system
JP2675890B2 (en) * 1990-03-06 1997-11-12 キヤノン株式会社 Spread spectrum communication equipment
US5103459B1 (en) 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
FR2670973B1 (en) * 1990-12-19 1994-04-15 Ouest Standard Telematique Sa PACKET TRANSMISSION SYSTEM WITH DATA COMPRESSION, METHOD AND EQUIPMENT THEREOF.
US5204876A (en) * 1991-03-13 1993-04-20 Motorola, Inc. Method and apparatus for providing high data rate traffic channels in a spread spectrum communication system
JP2973675B2 (en) 1991-07-22 1999-11-08 日本電気株式会社 Encoding / decoding system and apparatus suitable for variable rate transmission
US5218639A (en) * 1991-12-02 1993-06-08 Gte Government Systems Corporation Method and apparatus for changing bit rate of digitized analog
JPH05219016A (en) * 1991-12-09 1993-08-27 Matsushita Electric Ind Co Ltd Transmitting and receiving circuit
US5550809A (en) 1992-04-10 1996-08-27 Ericsson Ge Mobile Communications, Inc. Multiple access coding using bent sequences for mobile radio communications
US5341396A (en) * 1993-03-02 1994-08-23 The Boeing Company Multi-rate spread system
US5329547A (en) * 1993-03-11 1994-07-12 Motorola, Inc. Method and apparatus for coherent communication in a spread-spectrum communication system
MY112371A (en) * 1993-07-20 2001-05-31 Qualcomm Inc System and method for orthogonal spread spectrum sequence generation in variable data rate systems
KR960003102B1 (en) 1993-12-01 1996-03-04 재단법인 한국전자통신연구소 Channel modulation circuit of cdma modulation apparatus
US5418813A (en) 1993-12-06 1995-05-23 Motorola, Inc. Method and apparatus for creating a composite waveform
JPH08509590A (en) * 1994-02-25 1996-10-08 モトローラ・インコーポレイテッド Method and apparatus for time division multiplexing the use of spreading codes in a communication system
US5442625A (en) 1994-05-13 1995-08-15 At&T Ipm Corp Code division multiple access system providing variable data rate access to a user
US5623485A (en) 1995-02-21 1997-04-22 Lucent Technologies Inc. Dual mode code division multiple access communication system and method
US5926500A (en) * 1996-05-28 1999-07-20 Qualcomm Incorporated Reduced peak-to-average transmit power high data rate CDMA wireless communication system

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EP0903019A1 (en) 1999-03-24
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PT903019E (en) 2005-05-31
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CN1228212A (en) 1999-09-08
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CN1108035C (en) 2003-05-07
HK1020462A1 (en) 2000-04-20
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CA2257211C (en) 2007-06-05
ATE288154T1 (en) 2005-02-15
BR9709559A (en) 2000-01-11
JP2000512449A (en) 2000-09-19
AU716705B2 (en) 2000-03-02
US5926500A (en) 1999-07-20
AR007518A1 (en) 1999-11-10
DK0903019T3 (en) 2005-05-23
WO1997047098A1 (en) 1997-12-11
JP3998716B2 (en) 2007-10-31
BR9709559B1 (en) 2010-11-03

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