WO2002073230A3 - Wireless communications methods and systems for short-code and other spread spectrum waveform processing - Google Patents

Wireless communications methods and systems for short-code and other spread spectrum waveform processing Download PDF

Info

Publication number
WO2002073230A3
WO2002073230A3 PCT/US2002/007783 US0207783W WO02073230A3 WO 2002073230 A3 WO2002073230 A3 WO 2002073230A3 US 0207783 W US0207783 W US 0207783W WO 02073230 A3 WO02073230 A3 WO 02073230A3
Authority
WO
WIPO (PCT)
Prior art keywords
matrix
short
code
user
systems
Prior art date
Application number
PCT/US2002/007783
Other languages
French (fr)
Other versions
WO2002073230A2 (en
Inventor
John H Oates
Steven R Imperiali
Alden J Fuchs
Kathleen J Jacques
Jonathan E Greene
William J Jenkins
Frank P Lauginiger
David E Majchrzak
Paul E Cantrell
Mirza Cifric
Ian N Dunn
Michael J Vinskus
Original Assignee
Mercury Comp Systems 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
Application filed by Mercury Comp Systems Inc filed Critical Mercury Comp Systems Inc
Publication of WO2002073230A2 publication Critical patent/WO2002073230A2/en
Publication of WO2002073230A3 publication Critical patent/WO2002073230A3/en
Priority to NO20034057A priority Critical patent/NO20034057D0/en

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
    • 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
    • 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
    • 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
    • H04B1/7107—Subtractive interference cancellation
    • H04B1/71075—Parallel interference cancellation
    • 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
    • H04B1/711—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
    • 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
    • H04B2201/70707—Efficiency-related aspects
    • 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
    • H04B2201/70707—Efficiency-related aspects
    • H04B2201/7071—Efficiency-related aspects with dynamic control of receiver resources
    • H04B2201/70711—Efficiency-related aspects with dynamic control of receiver resources with modular structure

Abstract

The invention provides methods and apparatus for multiple user detection (MUD) processing that have application, for example, in improving the capacity CDMA and other wireless base stations. One aspect of the invention provides a multiprocessor, multiuser detection system for detecting user transmitted symbols in CDMA short-code spectrum waveforms. A first processing element generates a matrix (hereinafter, 'gamma matrix') that represents a correlation between a short-code associated with one user and those associated with one or more other users. A set of second processing elements generates, e.g., from the gamma matrix, a matrix (hereinafter, 'R-matrix') that represents cross-correlations among user waveforms based on their amplitudes and time lags. A third processing element produces estimates of the user transmitted symbols as a function of the R-matrix.
PCT/US2002/007783 2001-03-14 2002-03-14 Wireless communications methods and systems for short-code and other spread spectrum waveform processing WO2002073230A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NO20034057A NO20034057D0 (en) 2001-03-14 2003-09-12 Methods and systems for waveform processing of long code type and other spread spectrum type, for wireless communication

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US27584601P 2001-03-14 2001-03-14
US60/275,846 2001-03-14
US28960001P 2001-05-07 2001-05-07
US60/289,600 2001-05-07
US29506001P 2001-06-01 2001-06-01
US60/295,060 2001-06-01

Publications (2)

Publication Number Publication Date
WO2002073230A2 WO2002073230A2 (en) 2002-09-19
WO2002073230A3 true WO2002073230A3 (en) 2002-12-27

Family

ID=27402761

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/US2002/008106 WO2002073937A2 (en) 2001-03-14 2002-03-14 Wireless communications methods and systems for long-code and other spread spectrum waveform processing
PCT/US2002/007783 WO2002073230A2 (en) 2001-03-14 2002-03-14 Wireless communications methods and systems for short-code and other spread spectrum waveform processing

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/US2002/008106 WO2002073937A2 (en) 2001-03-14 2002-03-14 Wireless communications methods and systems for long-code and other spread spectrum waveform processing

Country Status (4)

Country Link
US (13) US7099374B2 (en)
AU (1) AU2002250356A1 (en)
NO (2) NO20034057D0 (en)
WO (2) WO2002073937A2 (en)

Families Citing this family (82)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5841768A (en) 1996-06-27 1998-11-24 Interdigital Technology Corporation Method of controlling initial power ramp-up in CDMA systems by using short codes
GB2351572B (en) * 1999-06-26 2002-02-06 Univ York Data procesors
JP2003512759A (en) * 1999-10-19 2003-04-02 インターデイジタル テクノロジー コーポレーション Receiver for multi-user detection of CDMA signals
US6918115B2 (en) * 2001-02-16 2005-07-12 Microsoft Corporation Method and apparatus for synchronization of periodic processes
AU2002250356A1 (en) * 2001-03-14 2002-09-24 Mercury Computer Systems, Inc. Wireless communications methods and systems for long-code and other spread spectrum waveform processing
US7376175B2 (en) * 2001-03-14 2008-05-20 Mercury Computer Systems, Inc. Wireless communications systems and methods for cache enabled multiple processor based multiple user detection
US8611311B2 (en) 2001-06-06 2013-12-17 Qualcomm Incorporated Method and apparatus for canceling pilot interference in a wireless communication system
US7190749B2 (en) * 2001-06-06 2007-03-13 Qualcomm Incorporated Method and apparatus for canceling pilot interference in a wireless communication system
US7110525B1 (en) 2001-06-25 2006-09-19 Toby Heller Agent training sensitive call routing system
US7308016B2 (en) * 2001-09-28 2007-12-11 Raytheon Company System and method for securing signals
US7173992B2 (en) * 2001-12-11 2007-02-06 Sasken Communication Technologies Limited Method for synchronization in wireless systems using receive diversity
US8090866B1 (en) 2002-01-18 2012-01-03 Cisco Technology, Inc. TCP proxy connection management in a gigabit environment
JP3902509B2 (en) * 2002-05-28 2007-04-11 日本電気株式会社 Mobile communication system, radio base station used therefor, and fault recovery method for radio communication modem
US7801085B1 (en) * 2002-06-03 2010-09-21 Ericsson Ab System and method of processing CDMA signals
US6983441B2 (en) * 2002-06-28 2006-01-03 Texas Instruments Incorporated Embedding a JTAG host controller into an FPGA design
US7313122B2 (en) * 2002-07-10 2007-12-25 Broadcom Corporation Multi-user carrier frequency offset correction for CDMA systems
US6876727B2 (en) * 2002-07-24 2005-04-05 Sbc Properties, Lp Voice over IP method for developing interactive voice response system
GB2396275B (en) * 2002-12-09 2006-03-15 Ipwireless Inc Support of plural chip rates in a CDMA system
US7440490B2 (en) * 2002-12-18 2008-10-21 Anna Kidiyarova-Shevchenko Method and apparatus for multi-user detection using RSFQ successive interference cancellation in CDMA wireless systems
US9818136B1 (en) 2003-02-05 2017-11-14 Steven M. Hoffberg System and method for determining contingent relevance
US7075973B2 (en) * 2003-03-03 2006-07-11 Interdigital Technology Corporation Multiuser detection of differing data rate signals
KR100526179B1 (en) * 2003-03-31 2005-11-03 삼성전자주식회사 Network Management Method For Wireless-Transceiving Of Data Stream, Network apparatus Using This
US20050031018A1 (en) * 2003-06-27 2005-02-10 Nokia Corporation Zero-padded OFDM with improved performance over multipath channels
JP4183706B2 (en) * 2003-07-29 2008-11-19 富士通株式会社 Pilot multiplexing method and transmitting / receiving apparatus in OFDM system
US7236546B2 (en) * 2003-09-10 2007-06-26 Bae Systems Information And Electronic Systems Integration Inc. Pipelined turbo multiuser detection
US7584405B2 (en) * 2003-12-03 2009-09-01 Hewlett-Packard Development Company, L.P. Fault-detecting computer system
US7243221B1 (en) * 2004-02-26 2007-07-10 Xilinx, Inc. Method and apparatus for controlling a processor in a data processing system
US7724851B2 (en) * 2004-03-04 2010-05-25 Bae Systems Information And Electronic Systems Integration Inc. Receiver with multiple collectors in a multiple user detection system
JP4405298B2 (en) * 2004-03-30 2010-01-27 パイオニア株式会社 Wireless communication apparatus and base station detection method
JP2005354255A (en) * 2004-06-09 2005-12-22 Fujitsu Ltd Device and method for eliminating interference
US20110151609A1 (en) * 2004-07-26 2011-06-23 Kuo-Ching Chiang Method for Forming Thin Film Heat Dissipater
US20060026308A1 (en) * 2004-07-29 2006-02-02 International Business Machines Corporation DMAC issue mechanism via streaming ID method
JP2006121636A (en) * 2004-10-22 2006-05-11 Tama Tlo Kk Data block spread type spread spectrum communications system
US8422955B2 (en) 2004-12-23 2013-04-16 Qualcomm Incorporated Channel estimation for interference cancellation
US8442441B2 (en) * 2004-12-23 2013-05-14 Qualcomm Incorporated Traffic interference cancellation
US8406695B2 (en) * 2004-12-23 2013-03-26 Qualcomm Incorporated Joint interference cancellation of pilot, overhead and traffic channels
US8099123B2 (en) * 2004-12-23 2012-01-17 Qualcomm Incorporated Adaptation of transmit subchannel gains in a system with interference cancellation
MX2007008211A (en) * 2005-01-05 2007-08-16 Atc Tech Llc Adaptive beam forming with multi-user detection and interference reduction in satellite communiation systems and methods.
FI20055469A0 (en) * 2005-09-02 2005-09-02 Nokia Corp Procedure and arrangements for controlling radio resources
US8472877B2 (en) 2005-10-24 2013-06-25 Qualcomm Incorporated Iterative interference cancellation system and method
US8385388B2 (en) * 2005-12-06 2013-02-26 Qualcomm Incorporated Method and system for signal reconstruction from spatially and temporally correlated received samples
US8493953B1 (en) * 2006-02-14 2013-07-23 L-3 Communications Method and device for mitigation of multi-user interference in code division multiple access
US20080005357A1 (en) * 2006-06-30 2008-01-03 Microsoft Corporation Synchronizing dataflow computations, particularly in multi-processor setting
US7536669B1 (en) * 2006-08-30 2009-05-19 Xilinx, Inc. Generic DMA IP core interface for FPGA platform design
US7949925B2 (en) * 2006-09-29 2011-05-24 Mediatek Inc. Fixed-point implementation of a joint detector
US7924948B2 (en) * 2006-09-29 2011-04-12 Mediatek Inc. Pre-scaling of initial channel estimates in joint detection
CN101663829B (en) * 2006-09-29 2013-02-27 联发科技股份有限公司 Architecture for joint detection hardware accelerator
US7953958B2 (en) * 2006-09-29 2011-05-31 Mediatek Inc. Architecture for joint detection hardware accelerator
US7916841B2 (en) * 2006-09-29 2011-03-29 Mediatek Inc. Method and apparatus for joint detection
US7991041B2 (en) * 2006-11-15 2011-08-02 Qualcomm, Incorporated Iterative detection and cancellation for wireless communication
US8781043B2 (en) 2006-11-15 2014-07-15 Qualcomm Incorporated Successive equalization and cancellation and successive mini multi-user detection for wireless communication
US7974370B2 (en) * 2006-12-27 2011-07-05 Freescale Semiconductor, Inc. Parallel processing for single antenna interference cancellation
KR100996421B1 (en) * 2007-03-15 2010-11-24 삼성전자주식회사 Apparatus and method for synchronizing channel card in wireless communication system
US8316378B2 (en) * 2007-12-21 2012-11-20 Mediatek Inc. Data flow control in wireless communication systems
US7692462B2 (en) * 2008-01-25 2010-04-06 Himax Technologies Limited Delay-locked loop and a stabilizing method thereof
US8082384B2 (en) * 2008-03-26 2011-12-20 Microsoft Corporation Booting an electronic device using flash memory and a limited function memory controller
US8249540B1 (en) 2008-08-07 2012-08-21 Hypres, Inc. Two stage radio frequency interference cancellation system and method
US8755515B1 (en) 2008-09-29 2014-06-17 Wai Wu Parallel signal processing system and method
CN102668611A (en) 2009-11-27 2012-09-12 高通股份有限公司 Interference cancellation for non-orthogonal channel sets
CN101789810B (en) * 2010-02-01 2013-03-27 北京大学 Minimum mean-square error two-stage spread spectrum OFDM self-adaptive code distribution method and system
US20110234600A1 (en) * 2010-03-24 2011-09-29 Synopsys, Inc. Client/Server Waveform Viewer Using Bitmaps
US8477603B2 (en) 2010-04-15 2013-07-02 Qualcomm Incorporated Load control in uplink interference cancellation systems with soft decision
US8627472B2 (en) * 2011-03-25 2014-01-07 International Business Machines Corporation Determining heavy distinct hitters in a data stream
CN102916723A (en) * 2011-08-01 2013-02-06 联发科技（新加坡）私人有限公司 Method and device for detecting active codes of user equipment
US8973091B2 (en) * 2011-10-03 2015-03-03 Imprivata, Inc. Secure authentication using mobile device
US8787422B2 (en) * 2011-12-13 2014-07-22 Qualcomm Incorporated Dual fixed geometry fast fourier transform (FFT)
CN103838656A (en) * 2012-11-20 2014-06-04 英业达科技有限公司 Computer system and method for operating computer system
US8812744B1 (en) 2013-03-14 2014-08-19 Microsoft Corporation Assigning priorities to data for hybrid drives
US9626126B2 (en) 2013-04-24 2017-04-18 Microsoft Technology Licensing, Llc Power saving mode hybrid drive access management
US9946495B2 (en) 2013-04-25 2018-04-17 Microsoft Technology Licensing, Llc Dirty data management for hybrid drives
US20150277978A1 (en) * 2014-03-25 2015-10-01 Freescale Semiconductor, Inc. Network processor for managing a packet processing acceleration logic circuitry in a networking device
EP3207473B1 (en) * 2015-03-21 2019-01-30 Huawei Technologies Co. Ltd. System, method, and device for index compilation to optimize index usage
US10694467B2 (en) * 2017-09-28 2020-06-23 Qualcomm Incorporated Dynamic clock switching within a transmission time interval
US10701485B2 (en) 2018-03-08 2020-06-30 Samsung Electronics Co., Ltd. Energy limiter for loudspeaker protection
US11012773B2 (en) 2018-09-04 2021-05-18 Samsung Electronics Co., Ltd. Waveguide for smooth off-axis frequency response
US10797666B2 (en) 2018-09-06 2020-10-06 Samsung Electronics Co., Ltd. Port velocity limiter for vented box loudspeakers
CN109327850B (en) * 2018-11-16 2021-06-25 安徽大学 Multi-user detection method of non-orthogonal multiple access system based on gradient tracking and multi-step quasi-Newton method technology
CN112396819B (en) * 2019-08-16 2022-06-03 北京小米移动软件有限公司 Infrared communication device, system, method, terminal device and storage medium
CN110611593A (en) * 2019-09-23 2019-12-24 国网河南省电力公司平顶山供电公司 Reliable transmission network method and system for remotely configuring key parameters of fault recording device
US11585915B2 (en) * 2020-08-21 2023-02-21 Kabushiki Kaisha Tokai Rika Denki Seisakusho Communication device, information processing method, and non-transitory computer readable storage medium
US11356773B2 (en) 2020-10-30 2022-06-07 Samsung Electronics, Co., Ltd. Nonlinear control of a loudspeaker with a neural network
CN112367098B (en) * 2020-11-10 2021-10-26 南京航空航天大学 Method for realizing fault diagnosis through spread spectrum carrier

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6018317A (en) * 1995-06-02 2000-01-25 Trw Inc. Cochannel signal processing system

Family Cites Families (168)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3996455A (en) * 1974-05-08 1976-12-07 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Two-dimensional radiant energy array computers and computing devices
EP0163096B1 (en) * 1984-04-26 1988-11-17 BBC Brown Boveri AG Apparatus for saving a calculator status
US5014235A (en) * 1987-12-15 1991-05-07 Steven G. Morton Convolution memory
JP2779813B2 (en) * 1988-09-06 1998-07-23 セイコーエプソン株式会社 computer
US5317752A (en) * 1989-12-22 1994-05-31 Tandem Computers Incorporated Fault-tolerant computer system with auto-restart after power-fall
US5103459B1 (en) * 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
US5175847A (en) * 1990-09-20 1992-12-29 Logicon Incorporated Computer system capable of program execution recovery
JPH077317B2 (en) * 1991-06-10 1995-01-30 松下電器産業株式会社 System restart device
US5475818A (en) * 1992-03-18 1995-12-12 Aeg Transportation Systems, Inc. Communications controller central processing unit board
EP0562251A2 (en) * 1992-03-24 1993-09-29 Universities Research Association, Inc. Parallel data transfer network controlled by a dynamically reconfigurable serial network
US6101576A (en) * 1992-07-31 2000-08-08 Fujitsu Limited Method for saving generated character image in a cache system including a backup cache
US5390324A (en) * 1992-10-02 1995-02-14 Compaq Computer Corporation Computer failure recovery and alert system
KR100323486B1 (en) 1993-11-01 2002-06-24 러셀 비. 밀러 Method and apparatus for transmitting variable rate digital data
FI106898B (en) 1993-11-10 2001-04-30 Nokia Networks Oy Reception procedure and CDMA receiver
US5576715A (en) * 1994-03-07 1996-11-19 Leica, Inc. Method and apparatus for digital processing in a global positioning system receiver
FI107420B (en) 1994-04-18 2001-07-31 Nokia Networks Oy Reception procedure and recipients
US5581632A (en) * 1994-05-02 1996-12-03 Cognex Corporation Method and apparatus for ball bond inspection system
KR100289826B1 (en) * 1994-05-31 2001-05-15 아끼구사 나오유끼 Job execution system and method between different operating systems
FI943196A (en) 1994-07-04 1996-01-05 Nokia Telecommunications Oy Reception procedure and recipients
FI96651C (en) * 1994-08-25 1996-07-25 Nokia Telecommunications Oy Reception procedure and recipients
FI944739A (en) 1994-10-07 1996-04-08 Nokia Telecommunications Oy Interference cancellation method and receiver
US5802105A (en) * 1994-11-30 1998-09-01 Qualcomm Incorporated Method and apparatus for testing a digital communication channel
US5724378A (en) * 1994-12-13 1998-03-03 Nit Mobile Communications Network, Inc. CDMA multiuser receiver and method
FI97583C (en) 1995-02-02 1997-01-10 Nokia Mobile Phones Ltd Procedure for data communication, transmitters and receivers
US5566171A (en) 1995-03-15 1996-10-15 Finisar Corporation Multi-mode high speed network switch for node-to-node communication
US5644592A (en) * 1995-04-24 1997-07-01 California Institute Of Technology Parallel interference cancellation for CDMA applications
US5608884A (en) 1995-05-17 1997-03-04 Dell Usa, L.P. Commonly housed multiple processor type computing system and method of manufacturing the same
JP2687927B2 (en) * 1995-05-24 1997-12-08 日本電気株式会社 External bus failure detection method
FI105512B (en) * 1995-05-24 2000-08-31 Nokia Networks Oy A method for providing an angular repetition and a base station apparatus
FI98172C (en) 1995-05-24 1997-04-25 Nokia Telecommunications Oy Method for transmitting a pilot signal and a cellular radio system
FI105515B (en) 1995-05-24 2000-08-31 Nokia Networks Oy A method for accelerating handoff and a cellular radio system
FI105513B (en) 1995-05-24 2000-08-31 Nokia Networks Oy Reception procedure and recipients
FI98171C (en) 1995-05-24 1997-04-25 Nokia Telecommunications Oy Procedure for transmitting pilot channels and cellular radio systems
FI105430B (en) 1995-05-24 2000-08-15 Nokia Networks Oy Base station equipment and method for directing antenna beam
FI106668B (en) 1995-05-24 2001-03-15 Nokia Networks Oy Base station equipment and method for directing antenna beam
US5790588A (en) * 1995-06-07 1998-08-04 Ntt Mobile Communications Network, Inc. Spread spectrum transmitter and receiver employing composite spreading codes
US6105148A (en) * 1995-06-16 2000-08-15 Lucent Technologies Inc. Persistent state checkpoint and restoration systems
FI110645B (en) 1995-06-30 2003-02-28 Nokia Corp Reception method and base station receiver
US5677930A (en) 1995-07-19 1997-10-14 Ericsson Inc. Method and apparatus for spread spectrum channel estimation
US5579335A (en) * 1995-09-27 1996-11-26 Echelon Corporation Split band processing for spread spectrum communications
FI955113A (en) 1995-10-26 1997-04-27 Nokia Mobile Phones Ltd Procedure for data communication, transmitters and receivers
FI99067C (en) 1995-11-02 1997-09-25 Nokia Mobile Phones Ltd Reception procedure and recipients
US5872776A (en) 1995-11-22 1999-02-16 Yang; Lin-Lang Signal detection and interference cancellation based on simplified matrix inversion for CDMA applications
WO1997021292A2 (en) 1995-11-22 1997-06-12 Yang Lin Lang A multiuser detector for code division multiple access systems
FI100150B (en) 1996-03-19 1997-09-30 Nokia Telecommunications Oy Reception method and receiver
FI961362A (en) 1996-03-25 1997-09-26 Nokia Telecommunications Oy Procedure for reducing interference and radio system
US6127973A (en) * 1996-04-18 2000-10-03 Korea Telecom Freetel Co., Ltd. Signal processing apparatus and method for reducing the effects of interference and noise in wireless communication systems
US5757791A (en) * 1996-04-18 1998-05-26 American Wireless Technology, Inc. Multistage linear receiver for DS-CDMA systems
US5765001A (en) * 1996-04-29 1998-06-09 International Business Machines Corporation Computer system which is operative to change from a normal operating state to a suspend state when a power supply thereof detects that an external source is no longer providing power to said power supply at a predetermined level
US6101476A (en) * 1996-05-28 2000-08-08 Kamatakis; John CD-ROM software protection system
JP2743912B2 (en) * 1996-05-30 1998-04-28 日本電気株式会社 CDMA interference canceller
US5864549A (en) * 1996-07-24 1999-01-26 Nokia Mobile Phones, Ltd. Method for the overlayed operation of two radio communication systems with reduced intersystem interference, and a radio communication system for overlayed use
US6101176A (en) 1996-07-24 2000-08-08 Nokia Mobile Phones Method and apparatus for operating an indoor CDMA telecommunications system
US6058465A (en) * 1996-08-19 2000-05-02 Nguyen; Le Trong Single-instruction-multiple-data processing in a multimedia signal processor
US5881056A (en) 1996-08-20 1999-03-09 Lucent Technologies Inc. Method and apparatus of a multi-code code division multiple access receiver having shared accumulator circuits
US5870378A (en) * 1996-08-20 1999-02-09 Lucent Technologies Inc. Method and apparatus of a multi-code code division multiple access receiver having a shared accumulator circuits
US6067292A (en) * 1996-08-20 2000-05-23 Lucent Technologies Inc Pilot interference cancellation for a coherent wireless code division multiple access receiver
FI102577B (en) 1996-09-05 1998-12-31 Nokia Telecommunications Oy Transmission and reception method and radio system
US5790534A (en) 1996-09-20 1998-08-04 Nokia Mobile Phones Limited Load control method and apparatus for CDMA cellular system having circuit and packet switched terminals
FI964161A (en) 1996-10-16 1998-04-17 Nokia Telecommunications Oy Method and apparatus for calculating a correlation
FI105517B (en) 1996-10-18 2000-08-31 Nokia Networks Oy Reception method and receiver
US5892632A (en) * 1996-11-18 1999-04-06 Cirrus Logic, Inc. Sampled amplitude read channel employing a residue number system FIR filter in an adaptive equalizer and in interpolated timing recovery
EP0844747A1 (en) 1996-11-26 1998-05-27 Siemens Aktiengesellschaft Receiver device for a radio communication system for receiving subscriber signals via a radio interface
FI964707A (en) 1996-11-26 1998-05-27 Nokia Telecommunications Oy Method for load control and radio system
IL119752A0 (en) 1996-12-04 1997-09-30 Israel State Asynchronous CDMA decorrelating detector
JP3651154B2 (en) * 1996-12-27 2005-05-25 ソニー株式会社 PN code generation circuit and radio system terminal device
US5903550A (en) * 1997-01-02 1999-05-11 Motorola, Inc. Method and system for parallel demodulation of multiple chips of a CDMA signal
FI109735B (en) 1997-02-28 2002-09-30 Nokia Corp Reception procedure and recipients
US6219341B1 (en) 1997-03-20 2001-04-17 University Technology Corporation Method for bandwidth efficient multiple access wireless communication
IL120538A (en) * 1997-03-26 2000-11-21 Dspc Tech Ltd Method and apparatus for reducing spread-spectrum noise
US5936950A (en) 1997-03-27 1999-08-10 Nokia Telecommunications Oy Data transmission method, reception method, and receiver
US6161209A (en) * 1997-03-28 2000-12-12 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of Industry Through The Communications Research Centre Joint detector for multiple coded digital signals
FI102866B1 (en) 1997-04-09 1999-02-26 Nokia Telecommunications Oy Reduction of interference in the mobile communication system
US6078573A (en) 1997-04-11 2000-06-20 Research Foundation Of State University Of New York Circuitry and method for demodulating code division multiple access (CDMA) signals
DE69734190T2 (en) 1997-05-02 2006-06-29 Siemens Ag TDMA / CDMA communication system with adjustable data rate
GB9709285D0 (en) 1997-05-08 1997-06-25 Philips Electronics Nv Flexible two-way telecommunications system
US6243838B1 (en) * 1997-05-13 2001-06-05 Micron Electronics, Inc. Method for automatically reporting a system failure in a server
US6370130B1 (en) 1997-06-09 2002-04-09 Yozan, Inc. Spread spectrum communication system
US5867478A (en) * 1997-06-20 1999-02-02 Motorola, Inc. Synchronous coherent orthogonal frequency division multiplexing system, method, software and device
FI104020B1 (en) 1997-06-23 1999-10-29 Nokia Telecommunications Oy Reception procedure and recipients
US6163836A (en) * 1997-08-01 2000-12-19 Micron Technology, Inc. Processor with programmable addressing modes
SG77607A1 (en) * 1997-08-26 2001-01-16 Univ Singapore A multi-user code division multiple access receiver
GB9726912D0 (en) 1997-12-19 1998-02-18 Advanced Communications Consul Apparatus and method for detection of signals
KR19990052334A (en) 1997-12-22 1999-07-05 서평원 Multiuser Detection Apparatus and Method of Direct Diffusion Code Division Multiple Access System
US6154507A (en) 1997-12-22 2000-11-28 Ericsson Inc System and method for signal demodulation
KR100277925B1 (en) * 1997-12-22 2001-02-01 서평원 Multiuser defectors for DS-CDMA systems and it's method
US6041232A (en) 1997-12-23 2000-03-21 Sc-Wireless Inc. Aggregation of shaped directional receiving antenna array for improved location information
GB9727352D0 (en) 1997-12-24 1998-02-25 Northern Telecom Ltd Multi-user detection for cdma antenna array receivers
US6430503B1 (en) * 1998-01-06 2002-08-06 Trimble Navigation Ltd. Distributed GPS navigation system
EP0929202A1 (en) 1998-01-06 1999-07-14 Lucent Technologies Inc. Uplink channel allocation for a mobile cellular network
US6122309A (en) * 1998-01-30 2000-09-19 Motorola, Inc. Method and apparatus for performing interference suppression using modal moment estimates
FR2774831B1 (en) 1998-02-11 2000-04-07 Agence Spatiale Europeenne ADAPTIVE SIGNAL RECEIVER FOR PULTIPLE ACCESS COMMUNICATION SYSTEM WITH CODES
US5955992A (en) 1998-02-12 1999-09-21 Shattil; Steve J. Frequency-shifted feedback cavity used as a phased array antenna controller and carrier interference multiple access spread-spectrum transmitter
CN1143468C (en) 1998-02-13 2004-03-24 索尼公司 Transmitting and receiving methods and devices
JP3024750B2 (en) 1998-04-07 2000-03-21 日本電気株式会社 DS-CDMA multi-user interference canceller and DS-CDMA communication system
JP2965202B1 (en) * 1998-04-07 1999-10-18 日本電気株式会社 Multi-user receiving apparatus and CDMA communication system
JP2967571B1 (en) 1998-05-01 1999-10-25 日本電気株式会社 CDMA multi-user receiving apparatus and communication system
US6141669A (en) 1998-05-06 2000-10-31 Nortel Networks Corporation Pseudorandom binary sequence block shifter
WO1999059266A1 (en) 1998-05-12 1999-11-18 Motorola Inc. Method and apparatus for short spreading in a code division multiple access communication system
JPH11340799A (en) * 1998-05-28 1999-12-10 Oki Electric Ind Co Ltd Circuit and method for generating m sequence and circuit for generating pn sequence
US6393047B1 (en) 1998-06-16 2002-05-21 Telefonaktiebolaget Lm Ericsson (Publ) Quadriphase spreading codes in code division multiple access communications
US6327668B1 (en) * 1998-06-30 2001-12-04 Sun Microsystems, Inc. Determinism in a multiprocessor computer system and monitor and processor therefor
EP0971485A1 (en) 1998-07-08 2000-01-12 Siemens Aktiengesellschaft Multiuser detection in CDMA using a correlation matrix
US6215780B1 (en) 1998-07-17 2001-04-10 Motorola, Inc. Method and system for synchronous code division multiplexed communications
US6301293B1 (en) 1998-08-04 2001-10-09 Agere Systems Guardian Corp. Detectors for CDMA systems
US6154443A (en) 1998-08-11 2000-11-28 Industrial Technology Research Institute FFT-based CDMA RAKE receiver system and method
US6188718B1 (en) 1998-08-21 2001-02-13 Lucent Technologies Inc. Methods and apparatus for reducing cochannel interference in a mixed-rate communication system
JP3377451B2 (en) * 1998-08-26 2003-02-17 シャープ株式会社 Matched filter
DE19841578B4 (en) 1998-09-11 2016-06-09 Ipcom Gmbh & Co. Kg Method and device for detecting CDMA-coded signals
US6208684B1 (en) 1998-09-18 2001-03-27 Dspc Technologies Ltd. Cyclic adaptive receivers for DS-CDMA signals
US6693953B2 (en) 1998-09-30 2004-02-17 Skyworks Solutions, Inc. Adaptive wireless communication receiver
EP0993127A1 (en) 1998-10-06 2000-04-12 Texas Instruments Incorporated Method and apparatus using Walsh-Hadamard transformation for forward link multiuser detection in CDMA systems
US6470000B1 (en) 1998-10-14 2002-10-22 Agere Systems Guardian Corp. Shared correlator system and method for direct-sequence CDMA demodulation
KR100283379B1 (en) * 1998-11-16 2001-03-02 정선종 Parallel Multistage Interference Cancellation
US6279050B1 (en) * 1998-12-18 2001-08-21 Emc Corporation Data transfer apparatus having upper, lower, middle state machines, with middle state machine arbitrating among lower state machine side requesters including selective assembly/disassembly requests
US6311296B1 (en) * 1998-12-29 2001-10-30 Intel Corporation Bus management card for use in a system for bus monitoring
US6647059B1 (en) 1999-02-11 2003-11-11 Nortel Networks Limited Code division multiple access cable modem
FI990316A0 (en) 1999-02-16 1999-02-16 Jyrki Johannes Joutsensalo Synchronization by correlation method in a spectrum spectrum system
EP1172732A4 (en) * 1999-02-24 2009-08-19 Hitachi Ltd Computer system and method of handling trouble of computer system
GB9904421D0 (en) 1999-02-25 1999-04-21 Univ Edinburgh Telecommunications receiver
JP3930187B2 (en) 1999-03-03 2007-06-13 株式会社日立コミュニケーションテクノロジー Synchronization control method, receiver, base station, and mobile terminal
AU3614500A (en) 1999-03-05 2000-09-21 Board Of Trustees Of The Leland Stanford Junior University Iterative multi-user detection
JP2000261412A (en) 1999-03-06 2000-09-22 Matsushita Electric Ind Co Ltd Interference signal eliminating device
FI106492B (en) 1999-03-09 2001-02-15 Nokia Mobile Phones Ltd The interference cancellation method
US6658047B1 (en) 1999-03-10 2003-12-02 Nokia Corporation Adaptive channel equalizer
JP2002539666A (en) 1999-03-10 2002-11-19 ノキア モービル フォーンズ リミティド Unsupervised adaptive chip separation filter for CDMA terminals
US6515978B1 (en) 1999-04-19 2003-02-04 Lucent Technologies Inc. Methods and apparatus for downlink diversity in CDMA using Walsh codes
DE69919037T2 (en) 1999-05-19 2005-07-28 Nokia Corp. SENDING DIVERSITY PROCEDURE AND SYSTEM
GB9911777D0 (en) 1999-05-20 1999-07-21 Univ Southampton Transceiver
US6529495B1 (en) 1999-05-24 2003-03-04 Nokia Telecommunications, Oy Method and apparatus for providing differencing multistage detection in the reverse link of a code division multiple access communication system
US6816541B1 (en) * 1999-05-24 2004-11-09 Texas Instruments Incorporated Spread spectrum interference cancellation
US6782036B1 (en) * 1999-05-26 2004-08-24 Board Of Regents, The University Of Texas System Smart antenna multiuser detector
EP1063780A3 (en) 1999-06-02 2003-11-26 Texas Instruments Incorporated Spread spectrum channel estimation sequences
US6546026B1 (en) 1999-06-17 2003-04-08 Lucent Technologies Inc. Multi-diversity synchronization technique for improving synchronization performance in wireless applications over fading channels
DE69929788T2 (en) 1999-06-18 2006-11-09 Nokia Corp. METHOD AND DEVICE FOR DIVERSITY TRANSMISSION
US6801565B1 (en) * 1999-06-25 2004-10-05 Ericsson Inc. Multi-stage rake combining methods and apparatus
ATE324711T1 (en) 1999-07-02 2006-05-15 Lucent Technologies Inc MULTI-USER DETECTION FOR BROADBAND CDMA
EP1069722A2 (en) 1999-07-12 2001-01-17 Hughes Electronics Corporation Wireless communication system and method having a space-time architecture, and receiver for multi-user detection
ATE307469T1 (en) 1999-07-13 2005-11-15 Texas Instruments Inc WIRELESS COMMUNICATION SYSTEM
US7028114B1 (en) * 1999-08-11 2006-04-11 Henry Milan Universal serial bus hub with wireless communication to remote peripheral device
JP3373457B2 (en) 1999-08-24 2003-02-04 松下電器産業株式会社 Wireless receiving apparatus and wireless receiving method
US6560295B1 (en) 1999-09-15 2003-05-06 Hughes Electronics Corporation Method of generating space-time codes for generalized layered space-time architectures
EP1091506A3 (en) 1999-10-01 2001-05-16 Ascom Systec AG A hybrid CDMA and TDMA radio access scheme for personal satellite communication systems
US6563812B1 (en) 1999-10-12 2003-05-13 Mitsubishi Electric Research Laboratories, Inc. Method and apparatus for detecting multiple signals in a CDMA network
US6518980B1 (en) 1999-11-19 2003-02-11 Fanuc Robotics North America, Inc. Method and system for allowing a programmable controller to communicate with a remote computer
US6697973B1 (en) 1999-12-08 2004-02-24 International Business Machines Corporation High availability processor based systems
FI19992694A (en) * 1999-12-15 2001-06-16 Nokia Networks Oy Method for receiving a spread spectrum signal and a receiver
US6975666B2 (en) * 1999-12-23 2005-12-13 Institut National De La Recherche Scientifique Interference suppression in CDMA systems
US6701431B2 (en) * 2000-01-28 2004-03-02 Infineon Technologies Ag Method of generating a configuration for a configurable spread spectrum communication device
DE10004833A1 (en) * 2000-02-01 2001-08-02 Siemens Ag Multipole low-voltage circuit breaker with one current measuring device per pole
US20010047473A1 (en) * 2000-02-03 2001-11-29 Realtime Data, Llc Systems and methods for computer initialization
US6842480B1 (en) 2000-02-28 2005-01-11 Golden Bridge Technology Incorporated Programmable matched filter bank
US7103095B2 (en) 2000-03-06 2006-09-05 Texas Instruments Incorporated Spread spectrum code correlator
US20030206577A1 (en) 2000-03-21 2003-11-06 Liberti Joseph Charles Combined adaptive spatio-temporal processing and multi-user detection for CDMA wireless systems
US6594785B1 (en) * 2000-04-28 2003-07-15 Unisys Corporation System and method for fault handling and recovery in a multi-processing system having hardware resources shared between multiple partitions
US6754805B1 (en) * 2000-08-07 2004-06-22 Transwitch Corporation Method and apparatus for configurable multi-cell digital signal processing employing global parallel configuration
US7035317B2 (en) * 2000-09-21 2006-04-25 North Carolina State University Single-user decoder metrics for subtractive interference cancellation detectors in code-division multiple-access (CDMA) communication systems with time dependence variance residual multiple-access interference (RMAI)
US6999500B2 (en) 2000-11-03 2006-02-14 Qualcomm Inc. System for direct sequence spreading
US7046657B2 (en) * 2000-12-20 2006-05-16 Wherenet Corp Wireless local area network system with mobile access point station determination
US6948010B2 (en) * 2000-12-20 2005-09-20 Stratus Technologies Bermuda Ltd. Method and apparatus for efficiently moving portions of a memory block
US6885338B2 (en) * 2000-12-29 2005-04-26 Lockheed Martin Corporation Adaptive digital beamformer coefficient processor for satellite signal interference reduction
US6983403B2 (en) * 2001-03-02 2006-01-03 Luminous Networks, Inc. Detecting bit errors in a communications system
US6570530B2 (en) * 2001-03-05 2003-05-27 Qualcomm Incorporated Method and apparatus providing improved position estimate based on an initial coarse position estimate
US7257816B2 (en) * 2001-03-12 2007-08-14 Mercury Computer Systems, Inc. Digital data processing apparatus and methods with dynamically configurable application execution on accelerated resources
US7376175B2 (en) * 2001-03-14 2008-05-20 Mercury Computer Systems, Inc. Wireless communications systems and methods for cache enabled multiple processor based multiple user detection
AU2002250356A1 (en) * 2001-03-14 2002-09-24 Mercury Computer Systems, Inc. Wireless communications methods and systems for long-code and other spread spectrum waveform processing
US7453897B2 (en) * 2001-10-03 2008-11-18 Global Ip Solutions, Inc. Network media playout
TW535095B (en) * 2001-10-03 2003-06-01 Darfon Electronics Corp Input device for handheld information processing device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6018317A (en) * 1995-06-02 2000-01-25 Trw Inc. Cochannel signal processing system

Also Published As

Publication number Publication date
WO2002073230A2 (en) 2002-09-19
US7248623B2 (en) 2007-07-24
US20030099225A1 (en) 2003-05-29
US20030091058A1 (en) 2003-05-15
US7210062B2 (en) 2007-04-24
US20030099224A1 (en) 2003-05-29
NO20034057D0 (en) 2003-09-12
US7203221B2 (en) 2007-04-10
US20030191887A1 (en) 2003-10-09
US7164706B2 (en) 2007-01-16
US7177344B2 (en) 2007-02-13
US7110431B2 (en) 2006-09-19
US20030091106A1 (en) 2003-05-15
US20030128739A1 (en) 2003-07-10
US20030076875A1 (en) 2003-04-24
NO20034058D0 (en) 2003-09-12
US7139306B2 (en) 2006-11-21
AU2002250356A1 (en) 2002-09-24
US20030002569A1 (en) 2003-01-02
US20030198197A1 (en) 2003-10-23
US20030202566A1 (en) 2003-10-30
US7110440B2 (en) 2006-09-19
US7327780B2 (en) 2008-02-05
US7110437B2 (en) 2006-09-19
US20030091102A1 (en) 2003-05-15
US20030103558A1 (en) 2003-06-05
WO2002073937A2 (en) 2002-09-19
WO2002073937A3 (en) 2002-11-07
US7453922B2 (en) 2008-11-18
US7099374B2 (en) 2006-08-29
US7218668B2 (en) 2007-05-15
US20030202559A1 (en) 2003-10-30

Similar Documents

Publication Publication Date Title
WO2002073230A3 (en) Wireless communications methods and systems for short-code and other spread spectrum waveform processing
SG161102A1 (en) Support multiuser detection in the downlink
ATE287149T1 (en) MULTI-USER DETECTOR FOR VARIABLE SPREAD FACTORS
WO2006115459A3 (en) Joint detector in a code division multiple access radio receiver
TWI256783B (en) A unified MMSE equalization and multi-user detection approach for use in a CDMA system
ATE237199T1 (en) METHOD AND DEVICE FOR INTERFERENCE SUPPRESSION IN SPREAD SPECTRUM COMMUNICATION SYSTEMS
EP1206044A3 (en) Matched filter and correlation detection method
WO2004023696A3 (en) Scaling using gain factors for use in data detection for wireless code division multiple access communication systems
WO2000002397A3 (en) Device and method for cancelling code interference in a cdma communication system
ATE281714T1 (en) MULTI STAGE RAKE COMBINATION PROCESS AND DEVICE
EP0954124A3 (en) CDMA cellular communication system and method of detecting spreading code
TW200501644A (en) Method and system for control of congestion in CDMA systems
EP1248381A3 (en) Correlation circuit for spread spectrum communications systems
WO2002043354A3 (en) Asymmetric orthogonal codes for wireless system receivers with multiplication-free correlators
EP1337059A4 (en) Method for achieving a large capacity of scdma spread communication system
MY124718A (en) "methods and apparatus for spreading and despreading information signals in code division multiple access communications systems"
AU7058800A (en) Method and apparatus for multiple access over a communication channel
IL156858A0 (en) Assigning clusters of demodulation elements in a spread spectrum system
BR0110685A (en) A method and equipment for providing both voice and data services in a high data rate wireless communication system.
EP1727388A3 (en) Method and system for control of congestion in CDMA systems
EP1075090A3 (en) A CDMA demodulating method and demodulator
CA2281854A1 (en) Spread spectrum communication method and spread spectrum communication apparatus
DE60123940D1 (en) Multi-user detection in a MC-CDMA messaging system
US7599344B2 (en) Method and apparatus for reducing multi-user processing in wireless communication systems
US6134263A (en) Method for using spreading code sequency to achieve high bit densities in a direct-sequence spread spectrum communication system

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
AK Designated states

Kind code of ref document: A3

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP