DE69432394D1 - Funk-Kommunikationssystem für CDMA und TDMA welches einen trainierten adaptiven Filter zur Demodulation benutzt - Google Patents

Funk-Kommunikationssystem für CDMA und TDMA welches einen trainierten adaptiven Filter zur Demodulation benutzt

Info

Publication number
DE69432394D1
DE69432394D1 DE69432394T DE69432394T DE69432394D1 DE 69432394 D1 DE69432394 D1 DE 69432394D1 DE 69432394 T DE69432394 T DE 69432394T DE 69432394 T DE69432394 T DE 69432394T DE 69432394 D1 DE69432394 D1 DE 69432394D1
Authority
DE
Germany
Prior art keywords
tdma
cdma
demodulation
communication system
radio communication
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
DE69432394T
Other languages
English (en)
Other versions
DE69432394T2 (de
Inventor
Toshifumi Sato
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Publication of DE69432394D1 publication Critical patent/DE69432394D1/de
Application granted granted Critical
Publication of DE69432394T2 publication Critical patent/DE69432394T2/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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2618—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using hybrid code-time division multiple access [CDMA-TDMA]

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Time-Division Multiplex Systems (AREA)
DE1994632394 1993-12-08 1994-12-07 Funk-Kommunikationssystem für CDMA und TDMA welches einen trainierten adaptiven Filter zur Demodulation benutzt Expired - Lifetime DE69432394T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP30763593A JP2636712B2 (ja) 1993-12-08 1993-12-08 移動通信装置

Publications (2)

Publication Number Publication Date
DE69432394D1 true DE69432394D1 (de) 2003-05-08
DE69432394T2 DE69432394T2 (de) 2003-10-30

Family

ID=17971415

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1994632394 Expired - Lifetime DE69432394T2 (de) 1993-12-08 1994-12-07 Funk-Kommunikationssystem für CDMA und TDMA welches einen trainierten adaptiven Filter zur Demodulation benutzt

Country Status (6)

Country Link
US (1) US5511068A (de)
EP (1) EP0658991B1 (de)
JP (1) JP2636712B2 (de)
AU (1) AU681917B2 (de)
CA (1) CA2137515C (de)
DE (1) DE69432394T2 (de)

Families Citing this family (69)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5812542A (en) * 1996-03-18 1998-09-22 Motorola, Inc. Method for determining weighting coefficients in a CDMA radio receiver
JP2807568B2 (ja) * 1994-02-10 1998-10-08 エヌ・ティ・ティ移動通信網株式会社 適応形スペクトラム拡散受信機
JP3305877B2 (ja) * 1994-06-23 2002-07-24 株式会社東芝 スペクトラム拡散無線通信システムおよびこのシステムで使用される無線通信装置
JP3215018B2 (ja) * 1994-09-09 2001-10-02 三菱電機株式会社 移動通信システム
JP2871503B2 (ja) * 1995-02-01 1999-03-17 日本電気株式会社 多方向多重通信システム
US5790588A (en) * 1995-06-07 1998-08-04 Ntt Mobile Communications Network, Inc. Spread spectrum transmitter and receiver employing composite spreading codes
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
US6570865B2 (en) 1995-08-10 2003-05-27 Hitachi, Ltd. CDMA mobile communications system and communication method
US6167038A (en) * 1995-08-31 2000-12-26 Nokia Telecommunications Oy Data transmission method, and a cellular radio system
ATE193169T1 (de) * 1995-12-07 2000-06-15 Vistar Telecommunications Inc Verfahren zur verbesserung der effizienz der verwendung eines funkkanals in überlappenden bedeckungszonen
US5991279A (en) * 1995-12-07 1999-11-23 Vistar Telecommunications Inc. Wireless packet data distributed communications system
US7590083B2 (en) * 1995-12-07 2009-09-15 Transcore Link Logistics Corp. Wireless packet data distributed communications system
US5793757A (en) * 1996-02-13 1998-08-11 Telefonaktiebolaget L M Ericsson (Publ) Telecommunication network having time orthogonal wideband and narrowband sytems
US5862132A (en) * 1996-04-22 1999-01-19 Motorola, Inc. System and method for multiple access short message communications
US5629929A (en) * 1996-06-07 1997-05-13 Motorola, Inc. Apparatus for rapid interference cancellation and despreading of a CDMA waveform
FR2750281B1 (fr) * 1996-06-19 1998-07-31 Alcatel Espace Unite d'interface pour reseau de radiocommunications avec les mobiles
EP0825581B1 (de) * 1996-07-25 2002-07-03 Matsushita Electric Industrial Co., Ltd. Mobileinheit und Mobileinheit-Unterstützungssystem
JP2815007B2 (ja) * 1996-12-05 1998-10-27 日本電気株式会社 可変レートｃｄｍａ拡散回路
JP3326679B2 (ja) * 1997-01-31 2002-09-24 沖電気工業株式会社 Ｃｄｍａ受信装置
FI970772A (fi) * 1997-02-24 1998-08-25 Nokia Telecommunications Oy Kanava-allokointi radiokaistalla
US5936950A (en) * 1997-03-27 1999-08-10 Nokia Telecommunications Oy Data transmission method, reception method, and receiver
EP0915575A4 (de) 1997-03-31 1999-11-03 Mitsubishi Electric Corp Frequenzteilung in einem mobilen kommunikationssystem mit diversity-empfänger und gemeinsamen wellenkompensator
US6072845A (en) * 1997-04-16 2000-06-06 The United States Of America As Represented By The Secretary Of The Navy Simplified interference suppressor
ATE304755T1 (de) * 1997-05-02 2005-09-15 Siemens Ag Tdma/cdma nachrichtenübertragungssystem mit anpassbarer datenrate
EP0926905B1 (de) * 1997-06-16 2010-08-11 Mitsubishi Denki Kabushiki Kaisha Mobilkommunikationssystem
US6081536A (en) 1997-06-20 2000-06-27 Tantivy Communications, Inc. Dynamic bandwidth allocation to transmit a wireless protocol across a code division multiple access (CDMA) radio link
US6542481B2 (en) 1998-06-01 2003-04-01 Tantivy Communications, Inc. Dynamic bandwidth allocation for multiple access communication using session queues
JP3985299B2 (ja) * 1997-07-14 2007-10-03 三菱電機株式会社 移動通信システム
DE19733120A1 (de) * 1997-07-31 1999-02-18 Siemens Ag Verfahren und Funkstation zur Datenübertragung
EP0969612A4 (de) 1997-09-30 2006-05-10 Mitsubishi Electric Corp Mobiles übertragungssystem
JP2991170B2 (ja) 1997-10-01 1999-12-20 日本電気株式会社 Ｃｄｍａ受信装置および方法
US6266385B1 (en) 1997-12-23 2001-07-24 Wireless Facilities, Inc. Elastic store for wireless communication systems
US6370158B1 (en) 1997-11-14 2002-04-09 Wireless Facilities, Inc. Wireless T/E Transceiver frame signaling subcontroller
US6373827B1 (en) 1997-10-20 2002-04-16 Wireless Facilities, Inc. Wireless multimedia carrier system
FI108178B (fi) 1997-12-16 2001-11-30 Nokia Networks Oy Tietoliikenneverkon kapasiteetin kasvattaminen
US6269093B1 (en) * 1997-12-16 2001-07-31 Nokia Mobile Phones Limited Adaptive removal of disturbance in TDMA acoustic peripheral devices
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
US7496072B2 (en) * 1997-12-17 2009-02-24 Interdigital Technology Corporation System and method for controlling signal strength 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
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
US7394791B2 (en) * 1997-12-17 2008-07-01 Interdigital Technology Corporation Multi-detection of heartbeat to reduce error probability
US7079523B2 (en) * 2000-02-07 2006-07-18 Ipr Licensing, Inc. Maintenance link using active/standby request channels
US6272187B1 (en) 1998-03-27 2001-08-07 Lsi Logic Corporation Device and method for efficient decoding with time reversed data
US8134980B2 (en) 1998-06-01 2012-03-13 Ipr Licensing, Inc. Transmittal of heartbeat signal at a lower level than heartbeat request
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
US7221664B2 (en) * 1998-06-01 2007-05-22 Interdigital Technology Corporation Transmittal of heartbeat signal at a lower level than heartbeat request
DE19838244A1 (de) * 1998-08-22 2000-02-24 Daimler Chrysler Ag Verfahren zum Empfang verschiedenartiger Funkstandards
JP3105871B2 (ja) * 1998-09-25 2000-11-06 埼玉日本電気株式会社 無線装置とその無線受信方法
JP3093740B2 (ja) * 1998-12-09 2000-10-03 日本電気株式会社 Ｃｄｍａ移動通信システムにおける無線チャネル多重通信方式
JP2000184433A (ja) * 1998-12-11 2000-06-30 Nec Corp Ｃｄｍａ移動通信システムにおける無線チャネル多重通信方式
US6483826B1 (en) * 1999-02-19 2002-11-19 Telefonaktiebolaget Lm Ericsson (Publ) Utilization of plural multiple access types for mobile telecommunications
DE19934251A1 (de) * 1999-07-21 2001-03-15 Siemens Ag Mehrfachnutzung von Sprachkanälen in einem Nachrichtenübertragungssystem
JP4369581B2 (ja) 1999-12-17 2009-11-25 パナソニック株式会社 基地局装置および干渉抑圧送信方法
WO2001058044A2 (en) 2000-02-07 2001-08-09 Tantivy Communications, Inc. Minimal maintenance link to support synchronization
US8155096B1 (en) 2000-12-01 2012-04-10 Ipr Licensing Inc. Antenna control system and method
AU2002232589A1 (en) 2000-12-15 2002-06-24 Broadstorm Telecommunications, Inc. Multi-carrier communications with group-based subcarrier allocation
US6947748B2 (en) 2000-12-15 2005-09-20 Adaptix, Inc. OFDMA with adaptive subcarrier-cluster configuration and selective loading
US6920118B2 (en) * 2000-12-20 2005-07-19 Lucent Technologies Inc. Method and apparatus for communicating heterogeneous data traffic
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
WO2002071770A1 (en) * 2001-03-06 2002-09-12 Beamreach Networks, Inc. Adaptive communications methods for multiple user packet radio wireless networks
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
JP3583414B2 (ja) * 2002-11-14 2004-11-04 松下電器産業株式会社 Ｃｄｍａ送信装置およびｃｄｍａ受信装置
TW569526B (en) * 2002-12-05 2004-01-01 Mediatek Inc Adaptive filter with GSPT LMS algorithm for reducing complexity
JP4000088B2 (ja) * 2003-05-09 2007-10-31 松下電器産業株式会社 無線受信装置および受信フィルタリング方法
EP1924004B1 (de) 2005-09-06 2015-04-08 Fujitsu Ltd. Entzerrervorrichtung und -verfahren
JP5006130B2 (ja) * 2007-07-19 2012-08-22 京セラ株式会社 送信方法ならびにそれを利用した基地局装置
US8217760B2 (en) * 2008-03-20 2012-07-10 Checkpoint Systems, Inc. Applique nodes for performance and functionality enhancement in radio frequency identification systems
CN101908921B (zh) * 2009-06-02 2014-04-30 华为技术有限公司 一种空分多址接入的优化方法、装置及系统

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61248695A (ja) * 1985-04-26 1986-11-05 Hitachi Ltd ビ−ムインデツクス型カラ−画像再生装置
DE3527331A1 (de) * 1985-07-31 1987-02-05 Philips Patentverwaltung Digitales funkuebertragungssystem
DE3527330A1 (de) * 1985-07-31 1987-02-05 Philips Patentverwaltung Digitales funkuebertragungssystem mit verbindungsbegleitenden organisationskanal im zeitmultiplexrahmen
DE59106942D1 (de) * 1990-11-22 1996-01-04 Ascom Tech Ag Mehrfachzugriffsverfahren und Mobilfunksystem zur Durchführung des Mehrfachzugriffsverfahrens.
JPH0548520A (ja) * 1991-08-12 1993-02-26 Matsushita Electric Ind Co Ltd 移動通信方式
JPH05145470A (ja) * 1991-11-18 1993-06-11 Nippon Telegr & Teleph Corp <Ntt> 多元接続移動通信方式
US5260967A (en) * 1992-01-13 1993-11-09 Interdigital Technology Corporation CDMA/TDMA spread-spectrum communications system and method
GB9201879D0 (en) * 1992-01-29 1992-03-18 Millicom Holdings Uk Ltd Communication system
US5295153A (en) * 1992-04-13 1994-03-15 Telefonaktiebolaget L M Ericsson CDMA frequency allocation
GB9209027D0 (en) * 1992-04-25 1992-06-17 British Aerospace Multi purpose digital signal regenerative processing apparatus
JP2802870B2 (ja) * 1993-03-10 1998-09-24 エヌ・ティ・ティ移動通信網株式会社 符号分割多重移動通信機及び符号分割多重移動通信のセル選択方法

Also Published As

Publication number Publication date
AU681917B2 (en) 1997-09-11
JP2636712B2 (ja) 1997-07-30
CA2137515A1 (en) 1995-06-09
EP0658991A1 (de) 1995-06-21
AU8027894A (en) 1995-06-15
CA2137515C (en) 2000-01-25
JPH07177569A (ja) 1995-07-14
EP0658991B1 (de) 2003-04-02
US5511068A (en) 1996-04-23
DE69432394T2 (de) 2003-10-30

Similar Documents

Publication Publication Date Title
DE69432394D1 (de) Funk-Kommunikationssystem für CDMA und TDMA welches einen trainierten adaptiven Filter zur Demodulation benutzt
EP0609828A3 (de) Adaptiver, signalangepasster Filter.
GB2281158B (en) Ladder-type filter
TW354206U (en) Radio receiver
EP0628260A3 (de) Zigarettenfilter.
GB9418095D0 (en) Radio telephone
GR3030709T3 (en) Conveyor belt.
DE69417650D1 (en) Orthodontisches band
GB2287944B (en) Microcellular polyurethane elastomer and process for producing the same
SG52751A1 (en) Adaptive system for self-tuning and selecting a carrier frequency in a radio frequency communication system
EP0665656A3 (de) Induktives Funkkommunikationssystem.
GB9508851D0 (en) Radio receiver
HK1017578A1 (en) Radio receiver
EP0606854A3 (de) Funkgerät.
EP0716622A4 (de) Gastrennfilter
EP0670231A3 (de) Luftfederaggregat.
GB9425185D0 (en) Radio telephone
GB2335096B (en) Voltage controlled band pass filters
HK1004504A1 (en) Radio receiver
GB2296406B (en) Radio telephone
GB9316951D0 (en) Radio communication systems
GB9416677D0 (en) Ladder-type filter
GB2280087B (en) Cellular radio system with hopping
GB2281663B (en) Filters for radio base stations
GB2345230B (en) Radio receiver and a filter for the radio receiver

Legal Events

Date Code Title Description
8364 No opposition during term of opposition