DE69719886T2 - Orthogonales Modulationsverfahren - Google Patents

Orthogonales Modulationsverfahren

Info

Publication number
DE69719886T2
DE69719886T2 DE69719886T DE69719886T DE69719886T2 DE 69719886 T2 DE69719886 T2 DE 69719886T2 DE 69719886 T DE69719886 T DE 69719886T DE 69719886 T DE69719886 T DE 69719886T DE 69719886 T2 DE69719886 T2 DE 69719886T2
Authority
DE
Germany
Prior art keywords
modulation method
orthogonal modulation
orthogonal
modulation
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.)
Expired - Lifetime
Application number
DE69719886T
Other languages
English (en)
Other versions
DE69719886D1 (de
Inventor
Nallepilli S Ramesh
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.)
Nokia of America Corp
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
Application filed by Lucent Technologies Inc filed Critical Lucent Technologies Inc
Application granted granted Critical
Publication of DE69719886D1 publication Critical patent/DE69719886D1/de
Publication of DE69719886T2 publication Critical patent/DE69719886T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/004—Orthogonal
    • H04J13/0048—Walsh
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/12—Channels characterised by the type of signal the signals being represented by different phase modulations of a single carrier
DE69719886T 1996-09-13 1997-09-02 Orthogonales Modulationsverfahren Expired - Lifetime DE69719886T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/712,832 US5805567A (en) 1996-09-13 1996-09-13 Orthogonal modulation scheme

Publications (2)

Publication Number Publication Date
DE69719886D1 DE69719886D1 (de) 2003-04-24
DE69719886T2 true DE69719886T2 (de) 2003-11-27

Family

ID=24863737

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69719886T Expired - Lifetime DE69719886T2 (de) 1996-09-13 1997-09-02 Orthogonales Modulationsverfahren

Country Status (5)

Country Link
US (1) US5805567A (de)
EP (1) EP0829982B1 (de)
JP (1) JPH10107692A (de)
CA (1) CA2212439A1 (de)
DE (1) DE69719886T2 (de)

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US6678311B2 (en) 1996-05-28 2004-01-13 Qualcomm Incorporated High data CDMA wireless communication system using variable sized channel codes
US6826169B1 (en) * 1996-12-20 2004-11-30 Fujitsu Limited Code multiplexing transmitting apparatus
US6173007B1 (en) 1997-01-15 2001-01-09 Qualcomm Inc. High-data-rate supplemental channel for CDMA telecommunications system
EP1612959B1 (de) * 1997-06-17 2009-12-30 QUALCOMM Incorporated Mehrkanalverbindung mit vermindertem Verhältnis von Spitzenamplitude zu Durchschnittsamplitude
US6285669B1 (en) * 1997-07-17 2001-09-04 Nortel Networks Limited CDMA direct spread overlay system and method of operation
US6389000B1 (en) * 1997-09-16 2002-05-14 Qualcomm Incorporated Method and apparatus for transmitting and receiving high speed data in a CDMA communication system using multiple carriers
EP2259453A1 (de) * 1998-02-26 2010-12-08 Sony Corporation Basisstation, Kommunikationsendgerät und Kommunikationsverfahren
JP3058270B2 (ja) 1998-04-22 2000-07-04 日本電気株式会社 Ｃｄｍａ通信方法、スペクトラム拡散通信システム、基地局、および端末装置
US6724741B1 (en) 1998-06-29 2004-04-20 L-3 Communications Corporation PN code selection for synchronous CDMA
US6091760A (en) * 1998-06-29 2000-07-18 L-3 Communications Corporation Non-recursively generated orthogonal PN codes for variable rate CDMA
US6212220B1 (en) * 1999-02-23 2001-04-03 Tantivy Communications, Inc. Method and apparatus for creating non-interfering signals using non-orthogonal techniques
US6973140B2 (en) * 1999-03-05 2005-12-06 Ipr Licensing, Inc. Maximizing data rate by adjusting codes and code rates in CDMA system
US7593380B1 (en) 1999-03-05 2009-09-22 Ipr Licensing, Inc. Variable rate forward error correction for enabling high performance communication
US6785323B1 (en) * 1999-11-22 2004-08-31 Ipr Licensing, Inc. Variable rate coding for forward link
US6925067B2 (en) * 1999-04-23 2005-08-02 Qualcomm, Incorporated Configuration of overhead channels in a mixed bandwidth system
US6614776B1 (en) * 1999-04-28 2003-09-02 Tantivy Communications, Inc. Forward error correction scheme for high rate data exchange in a wireless system
US6577614B1 (en) 1999-05-27 2003-06-10 Qwest Communications International Inc. System and method for OTA over CDMA data channel
KR100336627B1 (ko) * 1999-08-13 2002-05-16 조정남 이기종 이동 통신 시스템의 동시 서비스 방법 및 그 장치
US6721339B2 (en) * 1999-08-17 2004-04-13 Lucent Technologies Inc. Method of providing downlink transmit diversity
KR100325637B1 (ko) * 1999-08-23 2002-03-06 김대기 이기종 이동통신 시스템의 서비스 방법 및 그 장치
US6515980B1 (en) * 1999-09-22 2003-02-04 Ericsson Inc. Methods and apparatus for interference cancellation using complex interference orthogonalization techniques
ATE403983T1 (de) * 1999-10-29 2008-08-15 Qualcomm Inc System und methode für die erhöhung von vorwärtsverbindungskapazität in einem satellitenkommunikationssystem
AU1655001A (en) * 1999-11-02 2001-05-14 Broadcom Corporation A method and apparatus for the detection and classification of collisions on a shared access rf network
US6973063B1 (en) * 2000-03-21 2005-12-06 Ericsson, Inc. Methods, systems and apparatus for precompensating for interference among transmitted coded signals
US6975584B1 (en) * 2000-09-29 2005-12-13 Qualcomm, Incorporated Communication system method and apparatus
US6714599B1 (en) * 2000-09-29 2004-03-30 Qualcomm, Incorporated Method and apparatus for efficient processing of signal in a communication system
EP1217733A1 (de) * 2000-12-20 2002-06-26 Lucent Technologies Inc. Kombinatorfilter mit breitbandigem Zweig
US7277382B1 (en) * 2001-01-09 2007-10-02 Urbain A. von der Embse Hybrid walsh encoder and decoder for CDMA
US7394792B1 (en) 2002-10-08 2008-07-01 Urbain A. von der Embse Multi-scale CDMA
US7352796B1 (en) * 2001-02-13 2008-04-01 Urbain Alfred von der Embse Multiple data rate complex Walsh codes for CDMA
US7002903B2 (en) * 2001-05-23 2006-02-21 Lucent Technologies Inc. Automatic verification of Walsh code orthogonality
US7104534B2 (en) 2001-06-08 2006-09-12 Broadcom Corporation System and method for detecting collisions in a shared communications medium
US20040208646A1 (en) * 2002-01-18 2004-10-21 Seemant Choudhary System and method for multi-level phase modulated communication
US7376235B2 (en) * 2002-04-30 2008-05-20 Microsoft Corporation Methods and systems for frustrating statistical attacks by injecting pseudo data into a data system
US7203294B2 (en) * 2002-08-06 2007-04-10 At&T Corp. System and method for dynamically routing communications
US7599390B2 (en) * 2004-07-21 2009-10-06 Rambus Inc. Approximate bit-loading for data transmission over frequency-selective channels
US7289617B2 (en) * 2004-12-22 2007-10-30 Aol Llc Phone line supervisory controls
US8509321B2 (en) * 2004-12-23 2013-08-13 Rambus Inc. Simultaneous bi-directional link
TWI284867B (en) * 2005-07-01 2007-08-01 Ind Tech Res Inst Cipher method and system for multicast service
US9363126B2 (en) * 2007-12-21 2016-06-07 Google Technology Holdings LLC Method and apparatus for IFDMA receiver architecture
US8238472B2 (en) * 2008-11-21 2012-08-07 Telefonaktiebolaget Lm Ericsson (Publ) Carrier separation frequency error adjustment for UL multiple carrier operation
SG176334A1 (en) 2010-05-26 2011-12-29 Agency Science Tech & Res Low-power low-complexity qpsk rf transmitter based on injection-lock technology

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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
IL118832A (en) * 1992-01-16 1998-03-10 Qualcomm Inc Method and device for data integration and transmission and overuse
JPH0831838B2 (ja) * 1992-03-18 1996-03-27 国際電信電話株式会社 スペクトラム拡散通信システム
US5237292A (en) * 1992-07-01 1993-08-17 Space Systems/Loral Quadrature amplitude modulation system with compensation for transmission system characteristics
CA2127616C (en) * 1993-07-16 1999-02-09 Osamu Kato Mobile communication unit
ATE271293T1 (de) * 1993-11-01 2004-07-15 Qualcomm Inc Verfahren und vorrichtung zur übertragung von digitaldaten mit variabler rate
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
US5623485A (en) * 1995-02-21 1997-04-22 Lucent Technologies Inc. Dual mode code division multiple access communication system and method

Also Published As

Publication number Publication date
JPH10107692A (ja) 1998-04-24
US5805567A (en) 1998-09-08
DE69719886D1 (de) 2003-04-24
EP0829982A1 (de) 1998-03-18
CA2212439A1 (en) 1998-03-13
EP0829982B1 (de) 2003-03-19

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition