KR100269593B1 - 다중 채널을 위한 직교 복소 확산 방법 및 그 장치 - Google Patents

다중 채널을 위한 직교 복소 확산 방법 및 그 장치 Download PDF

Info

Publication number
KR100269593B1
KR100269593B1 KR1019980011923A KR19980011923A KR100269593B1 KR 100269593 B1 KR100269593 B1 KR 100269593B1 KR 1019980011923 A KR1019980011923 A KR 1019980011923A KR 19980011923 A KR19980011923 A KR 19980011923A KR 100269593 B1 KR100269593 B1 KR 100269593B1
Authority
KR
South Korea
Prior art keywords
complex
orthogonal
sequence
multiplier
spreading
Prior art date
Application number
KR1019980011923A
Other languages
English (en)
Korean (ko)
Other versions
KR19990062391A (ko
Inventor
방승찬
심재룡
한기철
Original Assignee
정선종
한국전자통신연구원
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=26633222&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=KR100269593(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 정선종, 한국전자통신연구원 filed Critical 정선종
Priority to KR1019980011923A priority Critical patent/KR100269593B1/ko
Priority to US09/162,764 priority patent/US6222873B1/en
Priority to EP20070010769 priority patent/EP1819082B1/en
Priority to DE1998638242 priority patent/DE69838242T2/de
Priority to DE10075378T priority patent/DE10075378T1/de
Priority to EP19980308056 priority patent/EP0921652B1/en
Priority to EP20100075559 priority patent/EP2262141A1/en
Priority to DE69840883T priority patent/DE69840883D1/de
Priority to EP20070010702 priority patent/EP1819081B1/en
Priority to EP20040077915 priority patent/EP1499053A3/en
Priority to EP20100075378 priority patent/EP2251998B1/en
Priority to DE69840900T priority patent/DE69840900D1/de
Priority to EP20070010789 priority patent/EP1819083B1/en
Priority to EP20040077916 priority patent/EP1501224A3/en
Priority to JP28158098A priority patent/JP3094292B2/ja
Priority to EP20070075395 priority patent/EP1816774B1/en
Priority to EP20070075393 priority patent/EP1816773B1/en
Publication of KR19990062391A publication Critical patent/KR19990062391A/ko
Application granted granted Critical
Publication of KR100269593B1 publication Critical patent/KR100269593B1/ko
Priority to US09/767,953 priority patent/US6449306B1/en
Priority to US10/932,227 priority patent/USRE40385E1/en
Priority to US11/648,915 priority patent/USRE44507E1/en
Priority to HK11101231.4A priority patent/HK1147361A1/xx
Priority to HK08101487A priority patent/HK1108982A1/xx
Priority to HK08101486A priority patent/HK1108981A1/xx
Priority to HK08101591A priority patent/HK1108237A1/xx
Priority to HK08101592A priority patent/HK1108238A1/xx
Priority to HK08101565A priority patent/HK1108236A1/xx
Priority to US13/177,498 priority patent/USRE44635E1/en
Priority to US14/047,435 priority patent/US20140126611A1/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • H04B1/7097Interference-related aspects
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J13/00Code division multiplex systems
    • H04J13/0007Code type
    • H04J13/004Orthogonal
    • H04J13/0048Walsh
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J13/00Code division multiplex systems
    • H04J13/10Code generation
    • H04J13/102Combining codes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J13/00Code division multiplex systems
    • H04J13/0007Code type
    • H04J2013/0037Multilevel codes
KR1019980011923A 1997-12-02 1998-04-04 다중 채널을 위한 직교 복소 확산 방법 및 그 장치 KR100269593B1 (ko)

Priority Applications (28)

Application Number Priority Date Filing Date Title
KR1019980011923A KR100269593B1 (ko) 1997-12-02 1998-04-04 다중 채널을 위한 직교 복소 확산 방법 및 그 장치
US09/162,764 US6222873B1 (en) 1997-12-02 1998-09-30 Orthogonal complex spreading method for multichannel and apparatus thereof
JP28158098A JP3094292B2 (ja) 1997-12-02 1998-10-02 多重チャンネルのための直交複素拡散方法およびその装置
DE69840900T DE69840900D1 (de) 1997-12-02 1998-10-02 Komplexes orthogonales Spreizverfahren für Mehrkanäle und zugehörende Vorrichtung
DE10075378T DE10075378T1 (de) 1997-12-02 1998-10-02 Komplexes orthogonales Spreizverfahren für Mehrkanäle und zugehörende Vorrichtung
EP19980308056 EP0921652B1 (en) 1997-12-02 1998-10-02 Orthogonal complex spreading method for multichannel and apparatus thereof
EP20100075559 EP2262141A1 (en) 1997-12-02 1998-10-02 Orthogonal complex spreading method for multichannel and apparatus thereof
DE69840883T DE69840883D1 (de) 1997-12-02 1998-10-02 Komplexes orthogonales Spreizverfahren für Mehrkanäle und zugehörende Vorrichtung
EP20070010702 EP1819081B1 (en) 1997-12-02 1998-10-02 Orthogonal complex spreading method for multichannel and apparatus thereof
EP20040077915 EP1499053A3 (en) 1997-12-02 1998-10-02 Orthogonal complex spreading method for multichannel and apparatus thereof
EP20100075378 EP2251998B1 (en) 1997-12-02 1998-10-02 Orthogonal complex spreading method for multichannel and apparatus thereof
DE1998638242 DE69838242T2 (de) 1997-12-02 1998-10-02 Komplexes orthogonales Spreizverfahren für Mehrkanäle und zugehörende Vorrichtung
EP20070010789 EP1819083B1 (en) 1997-12-02 1998-10-02 Orthogonal complex spreading method for multichannel and apparatus thereof
EP20040077916 EP1501224A3 (en) 1997-12-02 1998-10-02 Orthogonal complex spreading method for multichannel and apparatus thereof
EP20070010769 EP1819082B1 (en) 1997-12-02 1998-10-02 Orthogonal complex spreading method for multichannel and apparatus thereof
EP20070075395 EP1816774B1 (en) 1997-12-02 1998-10-02 Orthogonal complex spreading method for multichannel and apparatus thereof
EP20070075393 EP1816773B1 (en) 1997-12-02 1998-10-02 Orthogonal complex spreading method for multichannel and apparatus thereof
US09/767,953 US6449306B1 (en) 1997-12-02 2001-03-27 Orthogonal complex spreading method for multichannel and apparatus thereof
US10/932,227 USRE40385E1 (en) 1997-12-02 2004-09-02 Orthogonal complex spreading method for multichannel and apparatus thereof
US11/648,915 USRE44507E1 (en) 1997-12-02 2007-01-03 Orthogonal complex spreading method for multichannel and apparatus thereof
HK08101486A HK1108981A1 (en) 1997-12-02 2008-02-06 Orthogonal complex spreading method for multichannel and apparatus thereof
HK11101231.4A HK1147361A1 (en) 1997-12-02 2008-02-06 Orthogonal complex spreading method for multichannel and apparatus thereof
HK08101487A HK1108982A1 (en) 1997-12-02 2008-02-06 Orthogonal complex spreading method for multichannel and apparatus thereof
HK08101591A HK1108237A1 (en) 1997-12-02 2008-02-13 Orthogonal complex spreading method for multichannel and apparatus thereof
HK08101592A HK1108238A1 (en) 1997-12-02 2008-02-13 Orthogonal complex spreading method for multichannel and apparatus thereof
HK08101565A HK1108236A1 (en) 1997-12-02 2008-02-13 Orthogonal complex spreading method for multichannel and apparatus thereof
US13/177,498 USRE44635E1 (en) 1997-12-02 2011-07-06 Orthogonal complex spreading method for multichannel and apparatus thereof
US14/047,435 US20140126611A1 (en) 1997-12-02 2013-10-07 Orthogonal complex spreading method for multichannel and apparatus thereof

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR19970065375 1997-12-02
KR101997065375 1997-12-02
KR1019970065375 1997-12-02
KR1019980011923A KR100269593B1 (ko) 1997-12-02 1998-04-04 다중 채널을 위한 직교 복소 확산 방법 및 그 장치

Publications (2)

Publication Number Publication Date
KR19990062391A KR19990062391A (ko) 1999-07-26
KR100269593B1 true KR100269593B1 (ko) 2000-10-16

Family

ID=26633222

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019980011923A KR100269593B1 (ko) 1997-12-02 1998-04-04 다중 채널을 위한 직교 복소 확산 방법 및 그 장치

Country Status (6)

Country Link
US (6) US6222873B1 (US06449306-20020910-M00013.png)
EP (10) EP1816773B1 (US06449306-20020910-M00013.png)
JP (1) JP3094292B2 (US06449306-20020910-M00013.png)
KR (1) KR100269593B1 (US06449306-20020910-M00013.png)
DE (4) DE10075378T1 (US06449306-20020910-M00013.png)
HK (5) HK1108981A1 (US06449306-20020910-M00013.png)

Families Citing this family (77)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100269593B1 (ko) * 1997-12-02 2000-10-16 정선종 다중 채널을 위한 직교 복소 확산 방법 및 그 장치
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
KR100381012B1 (ko) 1998-05-04 2003-08-19 한국전자통신연구원 부호분할 다중접속 방식에서 상향 공통 채널의 임의 접속 장치및 방법
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
US6711121B1 (en) * 1998-10-09 2004-03-23 At&T Corp. Orthogonal code division multiplexing for twisted pair channels
CA2282780A1 (en) 1998-11-02 2000-05-02 Zulfiquar Sayeed A method and apparatus for achieving channel variability in spread spectrum communication systems
JP2000151557A (ja) * 1998-11-13 2000-05-30 Nec Corp Cdma通信装置
US6788728B1 (en) 1999-01-12 2004-09-07 Sony Corporation System and method for reducing peak-to-average ratio of the reverse link modulator in a CDMA phone system
US6611567B1 (en) * 1999-01-29 2003-08-26 Agere Systems, Inc. Method and apparatus for pulse shaping
JP3362009B2 (ja) * 1999-03-01 2003-01-07 シャープ株式会社 スペクトル拡散通信装置
DE10027216B4 (de) 1999-05-31 2008-10-16 Electronics And Telecommunications Research Institute Vorrichtung und Verfahren zum Modulieren einer Datennachricht durch Verwendung von Codes mit orthogonalem veränderlichem Spreizungsfaktor (OVSF) in einem Mobilkommunikationssystem
US6556557B1 (en) 1999-06-02 2003-04-29 At&T Corp. Method and system for reducing of peak-to-average power ratio of transmission signals comprising overlapping waveforms
GB9922239D0 (en) * 1999-09-20 1999-11-17 Nokia Mobile Phones Ltd A multiple access technique for mobile radio systems
JP3688166B2 (ja) * 1999-11-26 2005-08-24 シャープ株式会社 Cdma変調方法及びその装置
JP2001189711A (ja) * 1999-12-29 2001-07-10 Agilent Technologies Japan Ltd コード・ドメイン・パワーを表示するための装置及び方法
WO2001058044A2 (en) 2000-02-07 2001-08-09 Tantivy Communications, Inc. Minimal maintenance link to support synchronization
JP2001223670A (ja) 2000-02-09 2001-08-17 Nec Corp 拡散符号生成器及びそれを用いるcdma通信装置並びにそれらに用いる拡散符号生成方法
US6904085B1 (en) * 2000-04-07 2005-06-07 Zenith Electronics Corporation Multipath ghost eliminating equalizer with optimum noise enhancement
JP2002033716A (ja) * 2000-07-18 2002-01-31 Sony Corp Cdma拡散方法およびcdma端末装置
KR100682118B1 (ko) * 2000-08-25 2007-02-12 에스케이 텔레콤주식회사 코드 분할 다원 접속 방식을 기반으로 하는 무선 지역루프 시스템에서의 다원 접속 간섭 제거 장치 및 방법
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
US6745050B1 (en) * 2000-10-23 2004-06-01 Massachusetts Institute Of Technology Multichannel multiuser detection
KR20020034775A (ko) * 2000-11-03 2002-05-09 김동인 다차원 신호 설계와 이를 이용한 자기 간섭 제거알고리즘의 설계 방법
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
KR100714046B1 (ko) * 2000-12-12 2007-05-04 주식회사 케이티 반복적 간섭을 제거하기 위한 분산 측정 장치 및 그 방법
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
ES2614202T3 (es) 2001-06-13 2017-05-30 Intel Corporation Método y aparato para la transmisión de una señal de latido de corazón a un nivel inferior que la solicitud de latido de corazón
US7170952B2 (en) 2001-07-02 2007-01-30 Powerwave Technologies, Inc. System and method for post filtering peak power reduction in communications systems
US7095798B2 (en) 2001-08-02 2006-08-22 Powerwave Technologies, Inc. System and method for post filtering peak power reduction in multi-carrier communications systems
EP1436930B1 (en) * 2001-08-02 2008-03-26 Infineon Technologies AG Configurable terminal engine
KR100449546B1 (ko) * 2001-10-08 2004-09-21 주식회사 카서 코드선택 코드분할 다중접속 변복조 방법 및 그것을구현한 장치
KR100478255B1 (ko) * 2002-02-21 2005-03-25 공형윤 Cdma 통신에서 전송율을 향상시키고 비트 에러율을개선한 변조 및 복조 방법
US20040160922A1 (en) 2003-02-18 2004-08-19 Sanjiv Nanda Method and apparatus for controlling data rate of a reverse link in a communication system
US8391249B2 (en) 2003-02-18 2013-03-05 Qualcomm Incorporated Code division multiplexing commands on a code division multiplexed channel
US7155236B2 (en) 2003-02-18 2006-12-26 Qualcomm Incorporated Scheduled and autonomous transmission and acknowledgement
US8150407B2 (en) 2003-02-18 2012-04-03 Qualcomm Incorporated System and method for scheduling transmissions in a wireless communication system
US7660282B2 (en) 2003-02-18 2010-02-09 Qualcomm Incorporated Congestion control in a wireless data network
US8081598B2 (en) 2003-02-18 2011-12-20 Qualcomm Incorporated Outer-loop power control for wireless communication systems
US8023950B2 (en) 2003-02-18 2011-09-20 Qualcomm Incorporated Systems and methods for using selectable frame durations in a wireless communication system
US7215930B2 (en) 2003-03-06 2007-05-08 Qualcomm, Incorporated Method and apparatus for providing uplink signal-to-noise ratio (SNR) estimation in a wireless communication
US8705588B2 (en) 2003-03-06 2014-04-22 Qualcomm Incorporated Systems and methods for using code space in spread-spectrum communications
US8477592B2 (en) 2003-05-14 2013-07-02 Qualcomm Incorporated Interference and noise estimation in an OFDM system
US8489949B2 (en) 2003-08-05 2013-07-16 Qualcomm Incorporated Combining grant, acknowledgement, and rate control commands
US8090857B2 (en) 2003-11-24 2012-01-03 Qualcomm Atheros, Inc. Medium access control layer that encapsulates data from a plurality of received data units into a plurality of independently transmittable blocks
US7395290B2 (en) * 2004-06-04 2008-07-01 Agilent Technologies, Inc. Digital filter and method thereof using frequency translations
PL2363987T3 (pl) 2004-12-23 2014-03-31 Electronics & Telecommunications Res Inst Urządzenie do nadawania i odbierania danych do zapewnienia szybkiej komunikacji danych oraz stosowny sposób
AU2011203042B2 (en) * 2005-07-27 2012-02-23 Qualcomm Atheros, Inc. Managing spectra of modulated signals in a communication network
US8175190B2 (en) 2005-07-27 2012-05-08 Qualcomm Atheros, Inc. Managing spectra of modulated signals in a communication network
US7729433B2 (en) * 2006-03-07 2010-06-01 Motorola, Inc. Method and apparatus for hybrid CDM OFDMA wireless transmission
ES2302638B1 (es) * 2006-12-21 2009-06-04 Vicente Diaz Fuente Metodo mejorado de codificacion y decodificacion con al menos dos pares de secuencias ortogonales.
CN101136888B (zh) * 2007-05-18 2011-09-21 中兴通讯股份有限公司 一种降低信号峰均功率比的调制方法
US7929474B2 (en) * 2007-06-22 2011-04-19 Vubiq Incorporated System and method for wireless communication in a backplane fabric architecture
US7768457B2 (en) * 2007-06-22 2010-08-03 Vubiq, Inc. Integrated antenna and chip package and method of manufacturing thereof
US8630383B2 (en) 2008-08-22 2014-01-14 Alcatel Lucent Communication system for transmitting sync-flags and pilot symbols and method thereof
US8385461B1 (en) 2009-04-20 2013-02-26 Vubiq, Inc. On-off keying using vector modulation
US9893406B2 (en) 2009-08-19 2018-02-13 Vubiq Networks, Inc. Method of forming a waveguide interface by providing a mold to form a support block of the interface
KR20120078697A (ko) 2009-08-19 2012-07-10 부비큐, 인코포레이티드 정밀 도파관 인터페이스
BR112012024462A2 (pt) * 2010-04-02 2016-05-31 Fujitsu Ltd aparelho e método para geração de código de cobertura ortogonal (occ), e aparelho e método para mapeamento occ
US8693526B2 (en) * 2011-02-16 2014-04-08 Chester Wildey Unipolar spread spectrum modulation for low computation and power cost signal multiplexing with application to fNIRS measurments
US9275540B2 (en) * 2012-02-06 2016-03-01 Neocific, Inc. Methods and apparatus for contingency communications
US9197302B2 (en) * 2013-11-21 2015-11-24 Sony Corporation MIMO communication method
US10003389B2 (en) * 2014-06-04 2018-06-19 Sony Corporation MIMO communication method, and base station apparatus and terminal
CN105515713B (zh) * 2014-09-25 2018-11-30 中兴通讯股份有限公司 一种多用户码分多址接入通信方法与相应发射机、接收机
CN113162722B (zh) 2015-09-21 2024-04-12 Hyphy美国有限公司 用于通过不完美的电磁通路传输采样信号的系统
KR102491174B1 (ko) 2017-03-20 2023-01-25 하이파이 유에스에이 인크. Cdma-기반 미디어 인터페이스
KR102449441B1 (ko) 2017-10-17 2022-09-30 한국전자통신연구원 압축 센싱 신호의 처리 방법 및 장치
CN108092692B (zh) * 2017-12-27 2020-02-07 西安科锐盛创新科技有限公司 一种cdma系统信道扩频装置及方法
US10818997B2 (en) 2017-12-29 2020-10-27 Vubiq Networks, Inc. Waveguide interface and printed circuit board launch transducer assembly and methods of use thereof
US11716114B2 (en) 2020-11-25 2023-08-01 Hyphy Usa Inc. Encoder and decoder circuits for the transmission of video media using spread spectrum direct sequence modulation
US11769468B2 (en) 2022-01-19 2023-09-26 Hyphy Usa Inc. Spread-spectrum video transport integration with timing controller
US11842671B2 (en) 2022-03-07 2023-12-12 Hyphy Usa Inc. Spread-spectrum video transport source driver integration with display panel

Family Cites Families (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5103459B1 (en) 1990-06-25 1999-07-06 Qualcomm Inc System and method for generating signal waveforms in a cdma cellular telephone system
US5511073A (en) 1990-06-25 1996-04-23 Qualcomm Incorporated Method and apparatus for the formatting of data for transmission
US5235614A (en) 1991-03-13 1993-08-10 Motorola, Inc. Method and apparatus for accommodating a variable number of communication channels in a spread spectrum communication system
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
US5337338A (en) 1993-02-01 1994-08-09 Qualcomm Incorporated Pulse density modulation circuit (parallel to serial) comparing in a nonsequential bit order
JP2863975B2 (ja) 1993-07-16 1999-03-03 松下電器産業株式会社 Cdma方式送信装置および受信装置、cdma方式送信方法およびcdma方式移動通信システム
MY112371A (en) 1993-07-20 2001-05-31 Qualcomm Inc System and method for orthogonal spread spectrum sequence generation in variable data rate systems
US5414728A (en) 1993-11-01 1995-05-09 Qualcomm Incorporated Method and apparatus for bifurcating signal transmission over in-phase and quadrature phase spread spectrum communication channels
KR960003102B1 (ko) * 1993-12-01 1996-03-04 재단법인 한국전자통신연구소 씨.디.엠.에이(cdma) 이동통신 기지국 변조장치의 채널 변조회로 및 그를 이용한 변조장치
US5418813A (en) 1993-12-06 1995-05-23 Motorola, Inc. Method and apparatus for creating a composite waveform
US5619524A (en) 1994-10-04 1997-04-08 Motorola, Inc. Method and apparatus for coherent communication reception in a spread-spectrum communication system
KR100298340B1 (ko) 1994-11-19 2001-10-24 박태진 파일럿트채널을이용한다중접속대역확산통신시스템의데이타송수신기
KR970011690B1 (ko) 1994-11-22 1997-07-14 삼성전자 주식회사 파일럿트 채널을 이용한 대역확산 통신시스템의 데이타 송신기 및 수신기
US5602833A (en) 1994-12-19 1997-02-11 Qualcomm Incorporated Method and apparatus for using Walsh shift keying in a spread spectrum communication system
US5566164A (en) 1994-12-19 1996-10-15 Stanford Telecommunications, Inc. Practical means for digital generation and combination of a multiplicity of CDMA/FDMA signals
KR0142497B1 (ko) 1995-06-23 1998-08-01 양승택 역방향 링크에 버스트 파일럿을 갖는 채널구조
JP3212238B2 (ja) * 1995-08-10 2001-09-25 株式会社日立製作所 移動通信システムおよび移動端末装置
KR0174617B1 (ko) 1995-11-22 1999-04-01 김광호 직접확산/부호분할다중접속 통신시스템의 데이터 송신기 및 수신기
JP2737730B2 (ja) * 1995-11-30 1998-04-08 日本電気株式会社 スペクトル拡散送受信機
KR0159201B1 (ko) 1995-12-06 1998-12-01 양승택 Cdma 시스템에서의 동기식 이중 채널 qpsk 변복조 장치 및 그 변복조방법
KR0155510B1 (ko) 1995-12-22 1998-11-16 양승택 직접 시퀀스 확산 스펙트럼 oqpsk 칩 변조장치
EP0825737B1 (en) 1996-03-05 2007-05-02 NTT DoCoMo, Inc. Signal transmission method, transmitter and receiver in mobile communication system
JPH09321665A (ja) 1996-05-24 1997-12-12 Matsushita Electric Ind Co Ltd 送受信装置
US5930230A (en) * 1996-05-28 1999-07-27 Qualcomm Incorporated High data rate CDMA wireless communication system
US5926500A (en) 1996-05-28 1999-07-20 Qualcomm Incorporated Reduced peak-to-average transmit power high data rate CDMA wireless communication system
JP3409628B2 (ja) 1996-06-19 2003-05-26 株式会社エヌ・ティ・ティ・ドコモ Cdma通信方法およびグループ拡散変調器
KR0173101B1 (ko) 1996-08-14 1999-03-30 양승택 직접 시퀀스 확산 스펙트럼 통신용 월쉬-4상 위상변조 칩 변조 장치
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
US5818867A (en) 1996-09-09 1998-10-06 Itt Industries, Inc. QPSK/QBL-MSK waveform enhancement
US5991284A (en) * 1997-02-13 1999-11-23 Qualcomm Inc. Subchannel control loop
DE19708626C2 (de) 1997-03-04 1999-08-05 Rohde & Schwarz Nach dem Spreizspektrumverfahren arbeitendes Funkkommunikationssystem
TW421750B (en) 1997-03-14 2001-02-11 Omron Tateisi Electronics Co Language identification device, language identification method and storage media recorded with program of language identification
US6097712A (en) * 1997-06-20 2000-08-01 Nortel Networks Limited Multi-carrier CDMA communications systems
US6108369A (en) * 1997-07-11 2000-08-22 Telefonaktiebolaget Lm Ericsson Channelization code allocation for radio communication systems
FR2767238B1 (fr) * 1997-08-07 1999-10-01 Alsthom Cge Alcatel Dispositifs monocanal et multicanaux de demodulation coherente sans pilote, et ensemble correspondant de reception a plusieurs chemins de diversite
US6144691A (en) * 1997-09-30 2000-11-07 Nokia Mobile Phones Limited Method and apparatus for synchronizing to a direct sequence spread spectrum signal
US5903761A (en) * 1997-10-31 1999-05-11 Preemptive Solutions, Inc. Method of reducing the number of instructions in a program code sequence
KR100269593B1 (ko) * 1997-12-02 2000-10-16 정선종 다중 채널을 위한 직교 복소 확산 방법 및 그 장치
US6246697B1 (en) 1998-01-24 2001-06-12 Motorola, Inc. Method and system for generating a complex pseudonoise sequence for processing a code division multiple access signal
US6643275B1 (en) 1998-05-15 2003-11-04 Telefonaktiebolaget Lm Ericsson (Publ) Random access in a mobile telecommunications system
FR2784525B1 (fr) 1998-10-12 2006-07-28 Cit Alcatel Procede d'allocation de codes orthogonaux dans un systeme de radiocommunications mobiles du type a acces multiple par repartition de codes utilisant des codes de longueur variable
US7406261B2 (en) 1999-11-02 2008-07-29 Lot 41 Acquisition Foundation, Llc Unified multi-carrier framework for multiple-access technologies

Also Published As

Publication number Publication date
USRE44635E1 (en) 2013-12-10
EP1816774A3 (en) 2008-04-02
DE69840883D1 (de) 2009-07-16
EP2251998A2 (en) 2010-11-17
DE10075378T1 (de) 2011-04-14
KR19990062391A (ko) 1999-07-26
USRE40385E1 (en) 2008-06-17
EP1819083A2 (en) 2007-08-15
EP1816774A2 (en) 2007-08-08
HK1108982A1 (en) 2008-05-23
JP3094292B2 (ja) 2000-10-03
EP1819081B1 (en) 2011-05-25
EP2262141A1 (en) 2010-12-15
US20020097779A1 (en) 2002-07-25
EP1499053A2 (en) 2005-01-19
HK1108236A1 (en) 2008-05-02
EP1816773A3 (en) 2008-03-26
EP0921652B1 (en) 2007-08-15
EP0921652A2 (en) 1999-06-09
EP1819081A2 (en) 2007-08-15
EP1819082B1 (en) 2009-06-03
HK1108237A1 (en) 2008-05-02
EP0921652A3 (en) 2002-09-04
EP1816774B1 (en) 2012-11-21
EP2251998A3 (en) 2010-12-08
HK1108981A1 (en) 2008-05-23
EP1816773A2 (en) 2007-08-08
EP1819081A3 (en) 2008-03-26
EP2251998B1 (en) 2012-08-22
EP1819083B1 (en) 2011-05-25
EP1819082A3 (en) 2008-03-26
EP1499053A3 (en) 2005-06-15
DE69838242D1 (de) 2007-09-27
EP1819083A3 (en) 2008-04-02
DE69838242T2 (de) 2008-02-14
EP1816773B1 (en) 2009-06-10
US20140126611A1 (en) 2014-05-08
US6449306B1 (en) 2002-09-10
US6222873B1 (en) 2001-04-24
JPH11186989A (ja) 1999-07-09
EP1501224A2 (en) 2005-01-26
DE69840900D1 (de) 2009-07-23
EP1819082A2 (en) 2007-08-15
EP1501224A3 (en) 2005-07-13
HK1108238A1 (en) 2008-05-02
USRE44507E1 (en) 2013-09-24

Similar Documents

Publication Publication Date Title
KR100269593B1 (ko) 다중 채널을 위한 직교 복소 확산 방법 및 그 장치
KR100383575B1 (ko) 단말기의송신전력에서피크전력대평균전력비를줄이기위한확산변조방법및장치
US6490267B1 (en) Device and method for generating spreading code and spreading channel signals using spreading code in a CDMA communication system
US20090097580A1 (en) Apparatus and Method For Modulating Data Message By Employing Orthogonal Variable Spreading Factor (OVSF) Codes In Mobile Communicating System
KR100354337B1 (ko) 대역 확산 통신 방식에서의 확산 변조 방식을 이용한송수신방식 및 송수신장치
US7031370B1 (en) Spread-spectrum communication device
US6781980B1 (en) CDMA transmitter and method generating combined high-rate and low-rate CDMA signals
JP2002033716A (ja) Cdma拡散方法およびcdma端末装置
US6996080B1 (en) Chip-synchronous CDMA multiplexer and method resulting in constant envelope signals
CN1902847B (zh) 用于加扰的位传输的发射器和方法
WO2001003319A1 (en) Transmission over bundled channels in a cdma mobile radio system
CA2620101A1 (en) Quadriphase spreading codes in code division multiple access communications

Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20130624

Year of fee payment: 14

FPAY Annual fee payment

Payment date: 20140630

Year of fee payment: 15

FPAY Annual fee payment

Payment date: 20150629

Year of fee payment: 16

FPAY Annual fee payment

Payment date: 20160628

Year of fee payment: 17

FPAY Annual fee payment

Payment date: 20170627

Year of fee payment: 18

EXPY Expiration of term