KR920003687A - 이동무선 통신시스템 - Google Patents

이동무선 통신시스템 Download PDF

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Publication number
KR920003687A
KR920003687A KR1019910011857A KR910011857A KR920003687A KR 920003687 A KR920003687 A KR 920003687A KR 1019910011857 A KR1019910011857 A KR 1019910011857A KR 910011857 A KR910011857 A KR 910011857A KR 920003687 A KR920003687 A KR 920003687A
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South Korea
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time
radio
time slots
mobile
determining
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KR1019910011857A
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KR950000053B1 (ko
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고오이찌 이또
유우지 우메모또
마사유끼 다나까
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아오이 죠이찌
가부시끼가이샤 도시바
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/02Selection of wireless resources by user or terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/20Selecting an access point
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

내용 없음

Description

이동무선 통신시스템
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 이동무선 통신시스템의 개략 구성도.
제2도는 동시스템의 이동국의 구성을 나타낸 회로블록도.
제3도는 동시스템의 기지국의 구성을 나타낸 회로블록도.

Claims (5)

  1. 통신망에 대해서 각각 유선회선을 거쳐서 접속된 복수의 기지국과, 이들의 기지국에 대해서 무선회선을 거쳐서 접속되는 복수의 이동국을 구비하고, 이들 기지국 및 이동국에 복수의 무선주파수를 공유하게 하는 동시에 이들의 무선주파수중의 적어도 하나에 의한 전송신호의 구성을 복수의 타임슬롯을 시분할 다중화한 타임프레임으로 하고, 상기 기지국 및 이동국의 적어도 한쪽에 수신전파로 상기 무선주파수 및 상기 각 타임슬롯의 사용상황을 판정하기 위하여 사용상황판정수단과 이 사용상황판정수단의 판정결과에 따라서 이들 사용하는 무선주파수 및 타임슬롯을 결정하기 위한 무선회선결정수단과 이 무선회선결정수단에 의해서 결정된 무선주파수 및 타임슬롯에 의한 무선 회선을 기지국과 이동국과의 사이에 확립하기 위한 무선회선수단을 구비한 것을 특징으로 하는 이동무선통신시스템.
  2. 제1항에 있어서, 상기 무선회선 결정수단은 사용상황판정수단에 의해서 1타임 프레임중에 사용중의 타임슬롯이 있다고 판정된 경우에는 이 사용중의 타임슬롯의 위치를 기준으로 하여 이것으로 사용하는 타임슬롯의 위치를 결정하고 사용상황판정수단에 의해서 1타임프레임중에 사용중인 타임슬롯이 없다고 판정한 경우에는 1타임프레임주의 임의의 위치에 지금부터 사용하는 타임슬롯을 결정하는 것을 특징으로 하는 이동무선통신시스템.
  3. 제1항에 있어서, 상기 무선회선 결정수단은 사용상황판정수단에 의해서 사용중의 타임슬롯간에 복수의 공타임슬롯을 설정 가능한 기간이 있다고 판정된 경우에 이 기간중의 상기 사용중의 타임슬롯에는 접하지 않는 중간위치에 지금부터 사용하는 타임슬롯을 결정하는 것을 특징으로 하는 이동무선통신시스템.
  4. 통신망에 대해서 각각 유선회선을 거쳐서 접속된 복수의 기지국과 이들의 기지국에 대해서 무선회선을 거쳐서 접속되는 복수의 이동국을 구비하고 이들 기지국 및 이동국에 적어도 하나의 제어용무선주파수를 소유시키는 동시에 이 제어용무선주파수에 의한 전송신호를 복수의 타임슬롯을 시분할 다중화한 타임프레임에 의해서 구성하고, 상기 각 이동국은 상기 기지국에서 상기 제어용무선주파수에 의해서 보내지는 신호에 준하여 무선회선의 접속시에 기지국과의 사이에서 제어신호를 수수하기 위하여 사용하는 제어용 타임슬롯의 위치를 설정하기 위한 수단과 수단대기시에 이 수단에 의해서 설정된 각 제어용 타임슬롯중 특정기간에만 이동국을 수신상태로 하고 다른 기간은 비수신상태로 하는 배터리절약수단을 구비한 것을 특징으로 하는 이동무선통신 시스템.
  5. 제4항에 있어서, 상기 배터리절약수단은 수신대기시에 각 제어용 타임슬롯중에서 착신용으로 사용되는 타임슬롯의 수신기간내에 또 전파의 도래를 검출하는데 필요한 시간만 이동국을 수신상태로 하고 다른 기간은 비수신 상태로 하는 것을 특징으로 하는 이동무선통신시스템.
    ※참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019910011857A 1990-07-12 1991-07-12 이동무선 통신시스템 KR950000053B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2-184609 1990-07-12
JP02184609A JP3093243B2 (ja) 1990-07-12 1990-07-12 移動無線通信システム

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KR920003687A true KR920003687A (ko) 1992-02-29
KR950000053B1 KR950000053B1 (ko) 1995-01-07

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US (2) US5278835A (ko)
EP (1) EP0466139B1 (ko)
JP (1) JP3093243B2 (ko)
KR (1) KR950000053B1 (ko)
CA (1) CA2046675C (ko)
DE (1) DE69123789T2 (ko)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6985457B2 (en) 2001-08-10 2006-01-10 Interdigital Technology Corp. Dynamic link adaption for time division duplex (TDD)
US7068618B2 (en) 2001-08-10 2006-06-27 Interdigital Technology Corp. Dynamic link adaption for time division duplex (TDD)

Families Citing this family (102)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992007434A1 (en) 1990-10-23 1992-04-30 Omnipoint Corporation Method and apparatus for establishing spread spectrum communications
US5402413A (en) 1991-04-08 1995-03-28 Omnipoint Corporation Three-cell wireless communication system
US5285469A (en) * 1991-06-03 1994-02-08 Omnipoint Data Corporation Spread spectrum wireless telephone system
US5629975A (en) * 1991-09-20 1997-05-13 Qualcomm Incorporated Comprehensive mobile communications device registration method
JP3166796B2 (ja) * 1992-07-29 2001-05-14 ソニー株式会社 コードレス電話
FR2694853A1 (fr) * 1992-08-14 1994-02-18 Trt Telecom Radio Electr Système de transmissions d'informations comportant au moins une station de base et une station satellite et station faisant partie d'un tel système.
US5289464A (en) * 1992-09-21 1994-02-22 At&T Bell Laboratories Frequency-multiplexed cellular telephone cell site base station and method of operating the same
SE470543B (sv) * 1992-11-30 1994-07-25 Ericsson Telefon Ab L M Radiolänknät och förfarande för att överföra extratjänster i ett radiolänknät
GB9226707D0 (en) * 1992-12-22 1993-02-17 Ncr Int Inc Wireless local area network system with mobile station handover
DE69301536T2 (de) * 1993-02-26 1996-07-04 Orbitel Mobile Communications Synchronisationsvorrichtung für eine Vielzahl von Funksendern
JPH0738613B2 (ja) * 1993-03-30 1995-04-26 日本電気株式会社 複合データ通信方式およびこの方式に用いる装置
GB2281470B (en) * 1993-04-02 1998-07-15 Motorola Ltd Multichannel random access communications system
US7924783B1 (en) * 1994-05-06 2011-04-12 Broadcom Corporation Hierarchical communications system
ES2078150B1 (es) * 1993-06-25 1998-01-01 Alcatel Standard Electrica Subsistema de comunicaciones entre estaciones base y controladores de estaciones base en sistemas de comunicaciones a rafagas.
JP2526496B2 (ja) * 1993-07-21 1996-08-21 日本電気株式会社 移動通信システム
JP3110217B2 (ja) * 1993-08-26 2000-11-20 株式会社東芝 移動無線通信装置
US5507034A (en) * 1993-09-01 1996-04-09 Telefonaktiebolaget Lm Ericsson Channel selection in a cellular communication system
US5546383A (en) 1993-09-30 1996-08-13 Cooley; David M. Modularly clustered radiotelephone system
US5444696A (en) * 1993-10-29 1995-08-22 Pacific Communication Sciences, Inc. Frame structure using consecutive slot assignments for mobile communications
US6094575A (en) 1993-11-01 2000-07-25 Omnipoint Corporation Communication system and method
US6005856A (en) * 1993-11-01 1999-12-21 Omnipoint Corporation Communication protocol for spread spectrum wireless communication system
US6088590A (en) 1993-11-01 2000-07-11 Omnipoint Corporation Method and system for mobile controlled handoff and link maintenance in spread spectrum communication
GB9400253D0 (en) * 1994-01-07 1994-03-02 Philips Electronics Uk Ltd TDMA communications system
US5542115A (en) * 1994-06-24 1996-07-30 Pioneer Tech Development Limited Paging method and apparatus
US5809417A (en) * 1994-07-05 1998-09-15 Lucent Technologies Inc. Cordless telephone arranged for operating with multiple portable units in a frequency hopping system
US5541978A (en) * 1994-08-18 1996-07-30 Telefonaktiebolaget Lm Ericsson Method and system for implementing a backup digital control channel within a cellular telecommunications network
JP2600622B2 (ja) * 1994-09-22 1997-04-16 日本電気株式会社 Tdma方式の移動通信システムにおける下り制御信号の送信制御方法
US5511110A (en) * 1994-11-09 1996-04-23 U S West, Inc. Cellular phone page system using sequential transmissions of pages over a time-partitioned forward control channel
FR2726959B1 (fr) * 1994-11-10 1996-12-20 Alcatel Mobile Comm France Reseau cellulaire multicouche de radiocommunications avec des mobiles a plan de reutilisation de frequence optimise, et procede associe
DE4441262A1 (de) * 1994-11-19 1996-05-23 Oliver Alexander Stoll Kommunikationssystem für den Daten- und Informationsaustausch zwischen vorzugsweise mehreren Datenerfassungs- und/oder Datenverarbeitungsstellen und Kommunikationsgerät zur Verwendung in einem solchen System
GB2297013B (en) * 1995-01-10 1999-09-15 Nokia Mobile Phones Ltd Portable radio telephones and methods of operation
GB2297014B (en) * 1995-01-10 1999-07-28 Nokia Mobile Phones Ltd Portable radio telephones and method of operation
JP3134040B2 (ja) * 1995-05-25 2001-02-13 三菱電機株式会社 時分割多重通信制御方法
US5802046A (en) * 1995-06-05 1998-09-01 Omnipoint Corporation Efficient time division duplex communication system with interleaved format and timing adjustment control
US5689502A (en) * 1995-06-05 1997-11-18 Omnipoint Corporation Efficient frequency division duplex communication system with interleaved format and timing adjustment control
US5745484A (en) * 1995-06-05 1998-04-28 Omnipoint Corporation Efficient communication system using time division multiplexing and timing adjustment control
US5959980A (en) * 1995-06-05 1999-09-28 Omnipoint Corporation Timing adjustment control for efficient time division duplex communication
US6041046A (en) * 1995-07-14 2000-03-21 Omnipoint Corporation Cyclic time hopping in time division multiple access communication system
JPH0983473A (ja) * 1995-09-12 1997-03-28 Nec Corp Tdma通信方法及びtdma受信装置
US6038455A (en) * 1995-09-25 2000-03-14 Cirrus Logic, Inc. Reverse channel reuse scheme in a time shared cellular communication system
US6058289A (en) * 1995-09-26 2000-05-02 Pacific Communication Sciences, Inc. Method and apparatus for low power mobile unit for cellular communications system
US5898904A (en) * 1995-10-13 1999-04-27 General Wireless Communications, Inc. Two-way wireless data network having a transmitter having a range greater than portions of the service areas
US6711418B1 (en) * 1995-10-13 2004-03-23 General Wireless Communications Inc. Wireless personal mobile data terminal receiving a wide-area broadcast and capable of two-way communication in a local area
US6091960A (en) * 1995-10-18 2000-07-18 Telefonaktiebolaget Lm Ericsson Method for paging mobile stations
FI113223B (fi) * 1995-10-23 2004-03-15 Nokia Corp Menetelmä, laite ja televerkko törmäysten välttämiseksi radioliikenteessä
US5732076A (en) * 1995-10-26 1998-03-24 Omnipoint Corporation Coexisting communication systems
US6577611B1 (en) 1996-01-11 2003-06-10 Nokia Mobile Phones Limited Methods and apparatus for excluding communication channels in a radio telephone
US6738364B1 (en) 1996-01-31 2004-05-18 Nokia Mobile Phones Limited Radio receivers and methods of operation
GB2309859B (en) * 1996-01-31 2000-02-16 Nokia Mobile Phones Ltd Radio receivers and methods of operation
US5844894A (en) 1996-02-29 1998-12-01 Ericsson Inc. Time-reuse partitioning system and methods for cellular radio telephone systems
JPH09298521A (ja) * 1996-05-08 1997-11-18 Nec Eng Ltd 無線中継制御方法及び無線通信中継制御方式
SE506816C2 (sv) * 1996-06-20 1998-02-16 Ericsson Telefon Ab L M Ett förfarande och en kommunikationsenhet för snabb identifiering av basstationer i ett kommunikationsnät
US6023460A (en) * 1996-06-28 2000-02-08 Harris Corporation Wireless communications system and method using a reusable control channel
US6023621A (en) * 1996-06-28 2000-02-08 Harris Corporation Wireless communications system and method having dynamic reallocation of communication frequencies
US5864764A (en) * 1996-11-25 1999-01-26 Motorola, Inc. Infrastructure transceiver and method for configuration based on location information
US6069901A (en) * 1996-12-04 2000-05-30 Philips Electronics North America Corporation Use of energy bursts for wireless networks
US6301238B1 (en) 1997-01-28 2001-10-09 Telefonaktiebolaget Lm Ericsson (Publ) Directional-beam generative apparatus and associated method
US6272121B1 (en) 1997-03-03 2001-08-07 Omnipoint Corporation Spread spectrum communication system using DECT protocol
JPH10322760A (ja) 1997-05-21 1998-12-04 Toshiba Corp セルラ無線システム
GB2326311B (en) * 1997-06-11 2002-04-03 Dsc Telecom Lp Allocating channels for a wireless link between a central terminal and a subscriber terminal of a wireless telecommunications system
JP2914444B2 (ja) * 1997-07-22 1999-06-28 日本電気株式会社 Cdma送受信機
CA2300128A1 (en) * 1997-08-14 1999-02-25 Siemens Aktiengesellschaft Method and arrangement for logging on a mobile unit at a fixed station
KR100446515B1 (ko) 1997-09-13 2004-11-12 삼성전자주식회사 무선 통신시스템의 접속 방법
US6115607A (en) * 1998-01-30 2000-09-05 Qualcomm Incorporated Method and apparatus for reducing messaging traffic in a wireless communication system
JP3414244B2 (ja) * 1998-02-27 2003-06-09 ソニー株式会社 通信制御方法及び伝送装置
EP0940935A1 (en) * 1998-03-03 1999-09-08 ICO Services Ltd. Satellite paging channels
JPH11355277A (ja) * 1998-06-11 1999-12-24 Canon Inc 無線データ通信システムおよび無線データ通信方法
JP3492206B2 (ja) * 1998-06-24 2004-02-03 松下電器産業株式会社 電界検出方法
US7123624B1 (en) * 1999-01-14 2006-10-17 Cape Range Wireless, Ltd. System and method for single-point to fixed-multipoint data communication
US20030214933A1 (en) * 2000-01-13 2003-11-20 Cape Range Wireless Malaysia Sdn System and method for single-point to fixed-multipoint data communication
JP4483027B2 (ja) * 2000-05-25 2010-06-16 ソニー株式会社 サーバ装置、データ送受信方法及び記録媒体
US6781967B1 (en) * 2000-08-29 2004-08-24 Rockwell Collins, Inc. Scheduling techniques for receiver directed broadcast applications
US6885651B1 (en) 2000-08-29 2005-04-26 Rockwell Collins Maintaining an adaptive broadcast channel using both transmitter directed and receiver directed broadcasts
US6810022B1 (en) 2000-08-29 2004-10-26 Rockwell Collins Full duplex communication slot assignment
JP3873627B2 (ja) * 2001-01-19 2007-01-24 株式会社日立製作所 無線基地局及び無線基地局の利用周波数設定方法
JP2002369255A (ja) * 2001-06-08 2002-12-20 Sony Corp 無線通信方法、無線通信システム、並びに無線伝送装置
KR100396778B1 (ko) * 2001-06-25 2003-09-02 엘지전자 주식회사 이동통신 단말기의 전력 제어방법
ATE341869T1 (de) * 2001-08-10 2006-10-15 Interdigital Tech Corp Dynamische streckenanpassung für zeitduplex (tdd)
JP3877579B2 (ja) * 2001-11-26 2007-02-07 古野電気株式会社 Tdma通信装置
US7257377B2 (en) 2003-02-18 2007-08-14 Qualcomm, Incorporated Systems and methods for improving channel estimation
US7272176B2 (en) * 2003-02-18 2007-09-18 Qualcomm Incorporated Communication receiver with an adaptive equalizer
US20040161057A1 (en) * 2003-02-18 2004-08-19 Malladi Durga Prasad Communication receiver with a rake-based adaptive equalizer
JP4037790B2 (ja) * 2003-05-02 2008-01-23 アルパイン株式会社 ナビゲーション装置
AU2003304646A1 (en) * 2003-09-30 2005-04-21 Mitsubishi Electric Corp Time-division synchronization radio modem apparatus
US7403780B2 (en) 2004-02-19 2008-07-22 Rockwell Collins, Inc. Hybrid open/closed loop filtering for link quality estimation
US7826372B1 (en) 2004-03-26 2010-11-02 Rockwell Collins, Inc. Network routing process for regulating traffic through advantaged and disadvantaged nodes
US7382799B1 (en) 2004-05-18 2008-06-03 Rockwell Collins, Inc. On-demand broadcast protocol
US7310380B1 (en) 2004-05-28 2007-12-18 Rockwell Collins, Inc. Generic transmission parameter configuration
US7397810B1 (en) 2004-06-14 2008-07-08 Rockwell Collins, Inc. Artery nodes
US20060176966A1 (en) * 2005-02-07 2006-08-10 Stewart Kenneth A Variable cyclic prefix in mixed-mode wireless communication systems
CN101185085B (zh) * 2005-04-15 2011-11-16 Nxp股份有限公司 Rfid应答器
US8155640B1 (en) 2005-06-09 2012-04-10 Skybitz, Inc. System and method for mobile terminal initiated satellite communications
US7508304B2 (en) * 2005-07-06 2009-03-24 The Penn State Research Foundation Networked multiband waveguide intrusion detection and localization sensor
US7606171B1 (en) 2005-07-28 2009-10-20 Rockwell Collins, Inc. Skeletal node rules for connected dominating set in ad-hoc networks
US20070211657A1 (en) * 2006-03-09 2007-09-13 Motorola, Inc. Apparatus and Method for Assigning Time Domain Resources to a Receiver
EP2073414A4 (en) * 2006-06-28 2012-05-02 Mitsubishi Electric Corp MEDIA ACCESS CONTROL PROCEDURES
US8400998B2 (en) 2006-08-23 2013-03-19 Motorola Mobility Llc Downlink control channel signaling in wireless communication systems
US8520606B2 (en) * 2006-10-23 2013-08-27 Samsung Electronics Co., Ltd Synchronous spectrum sharing based on OFDM/OFDMA signaling
US7646785B2 (en) 2006-12-21 2010-01-12 Palo Alto Research Center Incorporated Cyclical-transmission-schedule reservation technique
JP4592743B2 (ja) * 2007-12-28 2010-12-08 古野電気株式会社 同期装置および同期方法
EP2217019B1 (en) * 2008-09-28 2017-08-30 Hytera Communications Corp., Ltd. Communication terminal, communication system and realization method for dmr special network
US8837559B2 (en) 2012-08-16 2014-09-16 Andrew Wireless Systems Gmbh Reducing distortion in repeaters for OFDM signals

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5925498B2 (ja) * 1978-01-06 1984-06-18 日本電気株式会社 Tdma無線通信用フレ−ム同期方式
US4504946A (en) * 1982-06-11 1985-03-12 Rca Corporation Time division multiple access communication systems
GB2144310A (en) * 1983-08-01 1985-02-27 Philips Electronic Associated Multiple-access communications system
JPS6052133A (ja) * 1983-09-01 1985-03-25 Nippon Telegr & Teleph Corp <Ntt> 移動無線における移動局の間欠受信方式
US4829554A (en) * 1985-01-31 1989-05-09 Harris Corporation Cellular mobile telephone system and method
US4675863A (en) * 1985-03-20 1987-06-23 International Mobile Machines Corp. Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
FR2584884B1 (fr) * 1985-07-09 1987-10-09 Trt Telecom Radio Electr Procede et dispositif de recherche de canal libre pour un systeme de radio mobile
DE3527330A1 (de) * 1985-07-31 1987-02-05 Philips Patentverwaltung Digitales funkuebertragungssystem mit verbindungsbegleitenden organisationskanal im zeitmultiplexrahmen
JPH0624337B2 (ja) * 1985-09-30 1994-03-30 日本電信電話株式会社 無線電話装置の着呼信号送出方式
JPH0622344B2 (ja) * 1986-07-26 1994-03-23 日本電気株式会社 移動通信システム
JP2548763B2 (ja) * 1988-01-25 1996-10-30 富士通株式会社 移動体通信の通話中ゾーン切換え方法と制御交換局
GB8809259D0 (en) * 1988-04-20 1988-05-25 Dowty Information Systems Ltd Communications systems
US5086452A (en) * 1988-06-13 1992-02-04 Kabushiki Kaisha Toshiba Radio telephone system and its control method
SE466279B (sv) * 1988-10-17 1992-01-20 Ericsson Telefon Ab L M Radioenhet foer oeverfoering av samtalsinformation i ett mobiltelefonsystem med kort raeckvidd
US4949395A (en) * 1989-07-07 1990-08-14 Telefonaktiebolaget L M Ericsson Method and arrangement for dynamically allocating time slots to connections in a digital mobile radio system
US4964121A (en) * 1989-08-30 1990-10-16 Motorola, Inc. Battery saver for a TDM system
JPH0822100B2 (ja) * 1989-09-19 1996-03-04 日本電信電話株式会社 移動通信無線制御チャネル構成方式
JP3034281B2 (ja) * 1990-07-12 2000-04-17 株式会社東芝 無線通信方式
US5134615A (en) * 1990-10-05 1992-07-28 Motorola, Inc. Frequency agile tdma communications system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6985457B2 (en) 2001-08-10 2006-01-10 Interdigital Technology Corp. Dynamic link adaption for time division duplex (TDD)
US7068618B2 (en) 2001-08-10 2006-06-27 Interdigital Technology Corp. Dynamic link adaption for time division duplex (TDD)

Also Published As

Publication number Publication date
DE69123789D1 (de) 1997-02-06
JPH0472828A (ja) 1992-03-06
CA2046675A1 (en) 1992-01-13
JP3093243B2 (ja) 2000-10-03
EP0466139A3 (en) 1992-12-23
EP0466139B1 (en) 1996-12-27
DE69123789T2 (de) 1997-05-28
US5278835A (en) 1994-01-11
KR950000053B1 (ko) 1995-01-07
US5396496A (en) 1995-03-07
EP0466139A2 (en) 1992-01-15
CA2046675C (en) 1996-01-16

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