IL121393A - OFDM digital communications system using complementary codes - Google Patents

OFDM digital communications system using complementary codes

Info

Publication number
IL121393A
IL121393A IL12139397A IL12139397A IL121393A IL 121393 A IL121393 A IL 121393A IL 12139397 A IL12139397 A IL 12139397A IL 12139397 A IL12139397 A IL 12139397A IL 121393 A IL121393 A IL 121393A
Authority
IL
Israel
Prior art keywords
communications system
digital communications
complementary codes
ofdm digital
ofdm
Prior art date
Application number
IL12139397A
Other languages
English (en)
Other versions
IL121393A0 (en
Original Assignee
Lucent Technologies 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=24764953&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=IL121393(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Lucent Technologies Inc filed Critical Lucent Technologies Inc
Publication of IL121393A0 publication Critical patent/IL121393A0/xx
Publication of IL121393A publication Critical patent/IL121393A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L23/00—Apparatus or local circuits for systems other than those covered by groups H04L15/00 - H04L21/00
    • H04L23/02—Apparatus or local circuits for systems other than those covered by groups H04L15/00 - H04L21/00 adapted for orthogonal signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2614—Peak power aspects
    • H04L27/2621—Reduction thereof using phase offsets between subcarriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/10—Code generation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/26035—Maintenance of orthogonality, e.g. for signals exchanged between cells or users, or by using covering codes or sequences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2614—Peak power aspects
    • H04L27/2615—Reduction thereof using coding
    • H04L27/2617—Reduction thereof using coding using block codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
IL12139397A 1996-07-30 1997-07-25 OFDM digital communications system using complementary codes IL121393A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/688,574 US5862182A (en) 1996-07-30 1996-07-30 OFDM digital communications system using complementary codes

Publications (2)

Publication Number Publication Date
IL121393A0 IL121393A0 (en) 1998-01-04
IL121393A true IL121393A (en) 2000-07-16

Family

ID=24764953

Family Applications (1)

Application Number Title Priority Date Filing Date
IL12139397A IL121393A (en) 1996-07-30 1997-07-25 OFDM digital communications system using complementary codes

Country Status (7)

Country Link
US (5) US5862182A (no)
EP (1) EP0822690A3 (no)
JP (1) JPH1084330A (no)
KR (1) KR980013160A (no)
CA (1) CA2206581A1 (no)
IL (1) IL121393A (no)
NO (1) NO973466L (no)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6404732B1 (en) * 1996-07-30 2002-06-11 Agere Systems Guardian Corp. Digital modulation system using modified orthogonal codes to reduce autocorrelation
US5862182A (en) * 1996-07-30 1999-01-19 Lucent Technologies Inc. OFDM digital communications system using complementary codes
DE19646299A1 (de) * 1996-11-11 1998-05-14 Bosch Gmbh Robert Verfahren zur Decodierung von komplementären Codes
US5982807A (en) 1997-03-17 1999-11-09 Harris Corporation High data rate spread spectrum transceiver and associated methods
US6151296A (en) * 1997-06-19 2000-11-21 Qualcomm Incorporated Bit interleaving for orthogonal frequency division multiplexing in the transmission of digital signals
US6169723B1 (en) * 1997-07-02 2001-01-02 Telefonaktiebolaget Lm Ericsson Computationally efficient analysis and synthesis of real signals using discrete fourier transforms and inverse discrete fourier transforms
US6175551B1 (en) * 1997-07-31 2001-01-16 Lucent Technologies, Inc. Transmission system and method employing peak cancellation to reduce the peak-to-average power ratio
DE19735097A1 (de) * 1997-08-13 1999-02-18 Deutsche Telekom Ag Verfahren und Schaltungsanordnung zur Übertragung von Nachrichten
GB2339514A (en) * 1998-07-11 2000-01-26 Motorola Ltd Cellular communication system with reduced power variation
US6442130B1 (en) * 1999-01-21 2002-08-27 Cisco Technology, Inc. System for interference cancellation
US6952394B1 (en) 1999-05-25 2005-10-04 Samsung Electronics Co., Ltd. Method for transmitting and receiving orthogonal frequency division multiplexing signal and apparatus therefor
US6747948B1 (en) * 1999-08-11 2004-06-08 Lucent Technologies Inc. Interleaver scheme in an OFDM system with multiple-stream data sources
CN1387703A (zh) * 1999-09-07 2002-12-25 艾利森公司 使用智能调制代码分配的无线通信设备和方法
US6392588B1 (en) 2000-05-03 2002-05-21 Ramot University Authority For Applied Research & Industrial Development Ltd. Multifrequency signal structure for radar systems
AU2001269484A1 (en) * 2000-07-10 2002-01-21 Matsushita Electric Industrial Co., Ltd. Multi-carrier communication device and peak power suppressing method
GB2368501B (en) * 2000-07-14 2004-03-24 Virata Ltd Reduced complexity DMT/OFDM transceiver
US7145969B1 (en) 2001-03-21 2006-12-05 Marvell International Ltd. Method and apparatus for complementary code keying
US7187730B1 (en) 2001-03-21 2007-03-06 Marvell International Ltd. Method and apparatus for predicting CCK subsymbols
US20020138807A1 (en) * 2001-03-26 2002-09-26 Quang Nguyen Optimum UMTS modem
US20020136282A1 (en) * 2001-03-26 2002-09-26 Quang Nguyen Optimum UMTS modem
CA2809894C (en) 2001-06-27 2017-12-12 Skky Incorporated Improved media delivery platform
US7298798B1 (en) 2001-08-24 2007-11-20 Mediatek, Inc. Method and system for decoding block codes
US7017104B1 (en) 2001-08-24 2006-03-21 Mediatek Inc. Method and system for decoding block codes by calculating a path metric according to a decision feedback sequence estimation algorithm
KR100866181B1 (ko) * 2002-07-30 2008-10-30 삼성전자주식회사 통신 시스템에서 신호 송수신 방법 및 장치
US6925128B2 (en) 2002-10-31 2005-08-02 Motorola, Inc. Method and apparatus for reducing a peak-to-average power ratio in an orthogonal frequency division multiplex signal
EP1816817A1 (en) * 2006-02-06 2007-08-08 Siemens Aktiengesellschaft A method for reducing Peak-to-Average Power Ratio in an OFDM transmission system
WO2007091157A2 (en) * 2006-02-08 2007-08-16 Nokia Corporation Apparatus, method and computer program product providing a transport format that is compatible with another transport format that uses spreading codes
EP2070246B1 (en) 2006-10-04 2015-08-19 Microsoft Technology Licensing, LLC Method for multiplexing control and data channel
US20080186937A1 (en) * 2007-02-07 2008-08-07 Fam Adly T Interlaced complementary code sets based on codes with unity peak sidelobes
US8436947B2 (en) 2008-05-15 2013-05-07 Sony Corporation Combined telephone/TV remote control
US8928524B1 (en) * 2009-11-06 2015-01-06 Technology Service Corporation Method and system for enhancing data rates
KR101846164B1 (ko) * 2010-08-20 2018-04-06 엘지전자 주식회사 무선 통신 시스템에서 제어 정보를 송신하는 방법 및 이를 위한 장치
EP2421187B1 (en) 2010-08-20 2018-02-28 LG Electronics Inc. Method for transmitting control information in a wireless communication system and apparatus therefor
JP5535024B2 (ja) * 2010-10-07 2014-07-02 パナソニック株式会社 レーダ装置
US9071340B2 (en) * 2013-09-02 2015-06-30 Samsung Electronics Co., Ltd. Method and apparatus for generating orthogonal codes with wide range of spreading factor
JP6255248B2 (ja) * 2014-01-14 2017-12-27 パナソニック株式会社 マルチセクタレーダ
US10277334B2 (en) * 2016-11-03 2019-04-30 Khalifa University of Science and Technology Hybrid OFDM body coupled communication transceiver

Family Cites Families (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4176316A (en) * 1953-03-30 1979-11-27 International Telephone & Telegraph Corp. Secure single sideband communication system using modulated noise subcarrier
US4353067A (en) * 1980-08-29 1982-10-05 Westinghouse Electric Corp. Method of reducing side lobes of complementary coded pulses in a coherent pulse compression doppler radar receiving system
FR2494529B1 (fr) * 1980-11-17 1986-02-07 France Etat Systeme de transmission numerique a codage adaptatif d'informations analogiques echantillonnees et transformees par transformation orthogonale
US4513288A (en) 1982-03-29 1985-04-23 The United States Of America As Represented By The Secretary Of The Army Group-complementary code sets for implementing pulse-compression processing with optimum aperiodic autocorrelation and optimum cross-correlation properties
US4494228A (en) 1982-08-12 1985-01-15 The United States Of America As Represented By The Secretary Of The Army Orthogonal code division multiple access communications systems
US4514853A (en) * 1982-12-13 1985-04-30 The United States Of America As Represented By The Secretary Of The Army Multiplexed noise code generator utilizing transposed codes
US4529963A (en) * 1983-06-22 1985-07-16 Gutleber Frank S Code expansion generator
US4707839A (en) * 1983-09-26 1987-11-17 Harris Corporation Spread spectrum correlator for recovering CCSK data from a PN spread MSK waveform
US5001723A (en) * 1985-11-05 1991-03-19 Allied-Signal Inc. Sinusoidal M-ary orthogonal keyed decoding
US4901307A (en) 1986-10-17 1990-02-13 Qualcomm, Inc. Spread spectrum multiple access communication system using satellite or terrestrial repeaters
US4904307A (en) * 1988-08-15 1990-02-27 American Maize-Products Company Method for making branched cyclodextrins and product produced thereby
US5109390A (en) * 1989-11-07 1992-04-28 Qualcomm Incorporated Diversity receiver 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
US5151919A (en) * 1990-12-17 1992-09-29 Ericsson-Ge Mobile Communications Holding Inc. Cdma subtractive demodulation
US5218619A (en) * 1990-12-17 1993-06-08 Ericsson Ge Mobile Communications Holding, Inc. CDMA subtractive demodulation
US5151702A (en) * 1991-07-22 1992-09-29 General Electric Company Complementary-sequence pulse radar with matched filtering following doppler filtering
US5357454A (en) * 1991-07-25 1994-10-18 Ericsson Ge Mobile Communications Holding, Inc. Fast walsh transform processor
US5187675A (en) * 1991-09-18 1993-02-16 Ericsson-Ge Mobile Communications Holding Inc. Maximum search circuit
JPH05145515A (ja) * 1991-11-19 1993-06-11 Canon Inc スペクトル拡散通信装置
US5353352A (en) * 1992-04-10 1994-10-04 Ericsson Ge Mobile Communications Inc. Multiple access coding for radio communications
US5224122A (en) * 1992-06-29 1993-06-29 Motorola, Inc. Method and apparatus for canceling spread-spectrum noise
FI925472A (fi) * 1992-12-01 1994-06-02 Nokia Mobile Phones Ltd Tiedonsiirtomenetelmä sekä -järjestelmä
MY112371A (en) 1993-07-20 2001-05-31 Qualcomm Inc System and method for orthogonal spread spectrum sequence generation in variable data rate systems
US5809060A (en) * 1994-02-17 1998-09-15 Micrilor, Inc. High-data-rate wireless local-area network
US5602833A (en) * 1994-12-19 1997-02-11 Qualcomm Incorporated Method and apparatus for using Walsh shift keying in a spread spectrum communication system
US6134264A (en) * 1995-02-01 2000-10-17 Hitachi, Ltd. Spread spectrum communication device and communication system
US6452958B1 (en) 1996-07-30 2002-09-17 Agere Systems Guardian Corp Digital modulation system using extended code set
US6404732B1 (en) * 1996-07-30 2002-06-11 Agere Systems Guardian Corp. Digital modulation system using modified orthogonal codes to reduce autocorrelation
US5862182A (en) * 1996-07-30 1999-01-19 Lucent Technologies Inc. OFDM digital communications system using complementary codes
US5841813A (en) * 1996-09-04 1998-11-24 Lucent Technologies Inc. Digital communications system using complementary codes and amplitude modulation
DE19646299A1 (de) * 1996-11-11 1998-05-14 Bosch Gmbh Robert Verfahren zur Decodierung von komplementären Codes
JPH10173536A (ja) * 1996-12-10 1998-06-26 Sony Corp 符号化方法および符号化装置、復号化方法および復号化装置、並びに記録媒体
US5909462A (en) * 1996-12-31 1999-06-01 Lucent Technologies Inc. System and method for improved spread spectrum signal detection
US6028728A (en) * 1998-01-14 2000-02-22 Cirrus Logic, Inc. Sampled amplitude read/write channel employing a sub-baud rate write clock

Also Published As

Publication number Publication date
US20110182170A1 (en) 2011-07-28
US20060250942A1 (en) 2006-11-09
US5862182A (en) 1999-01-19
EP0822690A3 (en) 2000-12-06
US20080069257A1 (en) 2008-03-20
NO973466L (no) 1998-02-02
IL121393A0 (en) 1998-01-04
KR980013160A (ko) 1998-04-30
US20090290481A1 (en) 2009-11-26
US7778146B2 (en) 2010-08-17
EP0822690A2 (en) 1998-02-04
US7583582B2 (en) 2009-09-01
US7957256B2 (en) 2011-06-07
JPH1084330A (ja) 1998-03-31
NO973466D0 (no) 1997-07-28
US8514690B2 (en) 2013-08-20
CA2206581A1 (en) 1998-01-30

Similar Documents

Publication Publication Date Title
IL121393A0 (en) OFDM digital communications system using complementary codes
GB2310111B (en) Digital mobile communication system
GB2315392B (en) Communications system
IL119832A0 (en) Communications system
GB2314733B (en) Cellular communications system
IL129655A0 (en) Digital receiver
IL127223A0 (en) Power-line digital communication system
GB9611425D0 (en) Digital communications
GB9506024D0 (en) Digital communications system
GB2331207B (en) Digital communication system and method
GB2318482B (en) Communication system
EP0944258A4 (en) DIGITAL RADIOTELEVISION SYSTEM
GB9605564D0 (en) Digital transmission system
GB9621774D0 (en) Digital communications system
GB2332124B (en) Digital radio communication system
GB9700215D0 (en) Communication system
GB2314237B (en) Communications system
GB9612367D0 (en) Digital communications system
GB2357408B (en) Communications system
GB2306085B (en) Digital communication system
GB2332347B (en) Digital communications device,method and system
GB2320400B (en) Communications system
EP0906674A4 (en) DIGITAL TELECOMMUNICATIONS NETWORK
GB2337900B (en) Communications system
GB9625930D0 (en) Communications system

Legal Events

Date Code Title Description
FF Patent granted
KB Patent renewed
KB Patent renewed
KB Patent renewed
KB Patent renewed
EXP Patent expired