SE9503285L - Förfarande och anordning för ökning av spektrumeffektiviteten - Google Patents

Förfarande och anordning för ökning av spektrumeffektiviteten

Info

Publication number
SE9503285L
SE9503285L SE9503285A SE9503285A SE9503285L SE 9503285 L SE9503285 L SE 9503285L SE 9503285 A SE9503285 A SE 9503285A SE 9503285 A SE9503285 A SE 9503285A SE 9503285 L SE9503285 L SE 9503285L
Authority
SE
Sweden
Prior art keywords
handset
base station
spectrum efficiency
role
requirement
Prior art date
Application number
SE9503285A
Other languages
English (en)
Other versions
SE518431C2 (sv
SE9503285D0 (sv
Inventor
Charles J Malek
David L Weigand
Original Assignee
Motorola 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 Motorola Inc filed Critical Motorola Inc
Publication of SE9503285D0 publication Critical patent/SE9503285D0/sv
Publication of SE9503285L publication Critical patent/SE9503285L/sv
Publication of SE518431C2 publication Critical patent/SE518431C2/sv

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/204—Multiple access
    • H04B7/212—Time-division multiple access [TDMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
    • H04J3/0652—Synchronisation among time division multiple access [TDMA] nodes, e.g. time triggered protocol [TTP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/725—Cordless telephones
    • H04M1/72502—Cordless telephones with one base station connected to a single line

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
SE9503285A 1994-09-23 1995-09-22 Förfarande och anordning för ökning av spektrumeffektiviteten SE518431C2 (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/311,309 US5606560A (en) 1994-09-23 1994-09-23 Between a base station and a portable device

Publications (3)

Publication Number Publication Date
SE9503285D0 SE9503285D0 (sv) 1995-09-22
SE9503285L true SE9503285L (sv) 1996-03-24
SE518431C2 SE518431C2 (sv) 2002-10-08

Family

ID=23206333

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9503285A SE518431C2 (sv) 1994-09-23 1995-09-22 Förfarande och anordning för ökning av spektrumeffektiviteten

Country Status (11)

Country Link
US (1) US5606560A (sv)
JP (1) JP3070656B2 (sv)
KR (1) KR0149951B1 (sv)
CN (1) CN1082324C (sv)
BR (1) BR9504126A (sv)
CA (1) CA2158115C (sv)
DE (1) DE19533954C2 (sv)
FR (1) FR2725086B1 (sv)
GB (1) GB2293525B (sv)
SE (1) SE518431C2 (sv)
TW (1) TW288238B (sv)

Families Citing this family (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1083203C (zh) * 1994-02-01 2002-04-17 艾利森电话股份有限公司 用于识别蜂窝通信网络中一个呼叫的呼叫记录的方法和装置
SE9404121L (sv) * 1994-11-29 1995-12-04 Telia Ab Metod för synkronisering av sändare och mottagare vid mobilt radiosystem
KR0164373B1 (ko) * 1995-03-31 1999-02-01 김광호 이동국간 통화로 설정방법
GB2305335B (en) * 1995-09-14 2000-01-12 Lucent Technologies Wireless L Re-registering a mobile phone in response to local communication signals
GB2319928A (en) * 1996-10-30 1998-06-03 Motorola Ltd Combined beacon and traffic channel transmission
US6434183B1 (en) 1997-08-14 2002-08-13 Siemens Aktiengesellschaft Method and device for radio transmission of data by means of frequency hops
DE59813213D1 (de) * 1997-09-08 2005-12-29 Infineon Technologies Ag Digitale Telekommunikationseinrichtung mit TDMA Verfahren
US6138190A (en) * 1997-09-16 2000-10-24 Cirrus Logic, Inc. Analog front end and digital signal processing device and method
DE19741681A1 (de) * 1997-09-22 1999-03-25 Cit Alcatel Drahtloses Kommunikationssystem mit Funkfeststation und Mobilstationen, insbesondere FDD/TDMA-Kommunikationssysstem
DE19742128C1 (de) * 1997-09-24 1999-04-15 Siemens Ag Sende- und/oder Empfangsstation für ein TDMA-Funksystem
US6141531A (en) * 1997-11-26 2000-10-31 Direct Wireless Corporation Local wireless communication system with external communications link
US6381250B1 (en) 1998-01-23 2002-04-30 Innovative Communications Technologies, Inc. Capacity allocation system using semi-autonomous network elements to implement and control a transmission schedule
US6426959B1 (en) 1998-01-20 2002-07-30 Innovative Communications Technologies, Inc. System and method for facilitating component management in a multiple vendor satellite communications network
EP0938193A1 (en) * 1998-02-18 1999-08-25 Sony International (Europe) GmbH Header structure for TDD systems
US20030035406A1 (en) * 1998-04-02 2003-02-20 Pctel, Inc. Multiple handset wireless conferencing system
US6473412B1 (en) * 1998-04-03 2002-10-29 Telefonaktiebolaget Lm Ericsson (Publ) Uncoordinated frequency hopping cellular system
US6374078B1 (en) 1998-04-17 2002-04-16 Direct Wireless Corporation Wireless communication system with multiple external communication links
USD419160S (en) * 1998-05-14 2000-01-18 Northrop Grumman Corporation Personal communications unit docking station
US6304559B1 (en) 1998-05-15 2001-10-16 Northrop Grumman Corporation Wireless communications protocol
US6223062B1 (en) 1998-05-15 2001-04-24 Northrop Grumann Corporation Communications interface adapter
US6169730B1 (en) 1998-05-15 2001-01-02 Northrop Grumman Corporation Wireless communications protocol
US6243573B1 (en) 1998-05-15 2001-06-05 Northrop Grumman Corporation Personal communications system
US6041243A (en) * 1998-05-15 2000-03-21 Northrop Grumman Corporation Personal communications unit
USD421002S (en) * 1998-05-15 2000-02-22 Northrop Grumman Corporation Personal communications unit handset
US6141426A (en) * 1998-05-15 2000-10-31 Northrop Grumman Corporation Voice operated switch for use in high noise environments
US6484027B1 (en) 1998-06-15 2002-11-19 Sbc Technology Resources, Inc. Enhanced wireless handset, including direct handset-to-handset communication mode
IL125059A0 (en) * 1998-06-22 1999-01-26 Shalev Doron Two-way group communication systems
FR2781960A1 (fr) * 1998-07-28 2000-02-04 Canon Kk Procede et dispositif de communication sur un reseau
FR2781953A1 (fr) * 1998-07-28 2000-02-04 Canon Kk Procede et dispositif de communication sur un reseau
FR2781956A1 (fr) * 1998-07-28 2000-02-04 Canon Kk Procede et dispositif de communication sur un reseau
EP0984652B8 (en) 1998-07-28 2009-07-08 Canon Kabushiki Kaisha Method and device for communication on a network
FR2781954B1 (fr) * 1998-07-28 2000-11-03 Canon Kk Procede et dispositif de communication sur un reseau
US6574452B1 (en) 1998-07-28 2003-06-03 Canon Kabushiki Kaisha Method and device for communication on a network
FR2781958A1 (fr) * 1998-07-28 2000-02-04 Canon Kk Procede et dispositif de communication sur un reseau
US7305012B1 (en) * 2000-07-24 2007-12-04 Siemens Information And Communication Networks S.P.A. Method and system to synchronize mobile units to a base transceiver station
US8761321B2 (en) * 2005-04-07 2014-06-24 Iii Holdings 1, Llc Optimal feedback weighting for soft-decision cancellers
US7876810B2 (en) 2005-04-07 2011-01-25 Rambus Inc. Soft weighted interference cancellation for CDMA systems
US7808937B2 (en) 2005-04-07 2010-10-05 Rambus, Inc. Variable interference cancellation technology for CDMA systems
US8179946B2 (en) * 2003-09-23 2012-05-15 Rambus Inc. Systems and methods for control of advanced receivers
US7715508B2 (en) * 2005-11-15 2010-05-11 Tensorcomm, Incorporated Iterative interference cancellation using mixed feedback weights and stabilizing step sizes
JP2005020163A (ja) * 2003-06-24 2005-01-20 Sony Corp 無線通信システム、無線通信装置及び無線通信方法、並びにコンピュータ・プログラム
ATE395769T1 (de) 2004-12-23 2008-05-15 Research In Motion Ltd Ping funktionalität für elektronische geräte
US20060209780A1 (en) * 2005-01-21 2006-09-21 Nokia Corporation Data transfer in TDMA system
US7991088B2 (en) 2005-11-15 2011-08-02 Tommy Guess Iterative interference cancellation using mixed feedback weights and stabilizing step sizes
US7826516B2 (en) 2005-11-15 2010-11-02 Rambus Inc. Iterative interference canceller for wireless multiple-access systems with multiple receive antennas
US20060286975A1 (en) * 2005-06-15 2006-12-21 Matsushita Electric Industrial Co., Ltd. Wireless communication apparatus
US20070086601A1 (en) * 2005-10-17 2007-04-19 Mitchler Dennis W Flexible wireless air interface system
US20070110135A1 (en) * 2005-11-15 2007-05-17 Tommy Guess Iterative interference cancellation for MIMO-OFDM receivers
US7623602B2 (en) * 2005-11-15 2009-11-24 Tensorcomm, Inc. Iterative interference canceller for wireless multiple-access systems employing closed loop transmit diversity
RU2444849C2 (ru) * 2010-03-22 2012-03-10 Российская Федерация, от имени которой выступает Министерство обороны Российской Федерации Способ и устройство синхронизации и устранения фазовой неоднозначности сигналов систем связи с временным разделением каналов

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3983498A (en) * 1975-11-13 1976-09-28 Motorola, Inc. Digital phase lock loop
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
US4882746A (en) * 1987-03-22 1989-11-21 Masatoshi Shimada Cordless telephone system
US5042082A (en) * 1989-06-26 1991-08-20 Telefonaktiebolaget L. M. Ericsson Mobile assisted handoff
US5228029A (en) * 1990-02-27 1993-07-13 Motorola, Inc. Cellular tdm communication system employing offset frame synchronization
JP2994019B2 (ja) * 1990-10-18 1999-12-27 株式会社東芝 移動無線通信システムおよび移動親局装置
US5142534A (en) * 1990-10-17 1992-08-25 O'neill Communications, Inc. Wireless integrated voice-data communication system
US5144668A (en) * 1991-01-25 1992-09-01 Motorola, Inc. Signal overlap detection in a communication system
US5212715A (en) * 1991-01-25 1993-05-18 Motorola, Inc. Digital communication signalling system
US5117441A (en) * 1991-02-25 1992-05-26 Motorola, Inc. Method and apparatus for real-time demodulation of a GMSK signal by a non-coherent receiver
DE4136147A1 (de) * 1991-11-02 1993-05-06 Robert Bosch Gmbh, 7000 Stuttgart, De Synchronisationsverfahren fuer ein mobilfunktelefon
DE69323755T2 (de) * 1992-08-18 1999-07-01 At & T Wireless Communicat Verfahren zum herstellen einer nachrichtenverbindung in einem digitalen schnurlosen telefonsystem
TW239910B (sv) * 1992-08-21 1995-02-01 Motorola Inc
GB2279849B (en) * 1993-06-02 1997-03-26 Vtech Communications Ltd Method of conducting an intercom communication between two cordless telephone handsets
GB2285723B (en) * 1994-01-18 1997-09-10 Motorola Ltd Communications system
JPH07297776A (ja) * 1994-04-22 1995-11-10 Oki Electric Ind Co Ltd 通信システム

Also Published As

Publication number Publication date
MX9504037A (es) 1998-12-31
BR9504126A (pt) 1996-07-30
DE19533954A1 (de) 1996-03-28
KR0149951B1 (ko) 1999-05-15
US5606560A (en) 1997-02-25
SE518431C2 (sv) 2002-10-08
FR2725086B1 (fr) 1999-12-31
GB9518820D0 (en) 1995-11-15
GB2293525B (en) 1999-01-20
CA2158115A1 (en) 1996-03-24
FR2725086A1 (fr) 1996-03-29
SE9503285D0 (sv) 1995-09-22
TW288238B (sv) 1996-10-11
CN1132452A (zh) 1996-10-02
CN1082324C (zh) 2002-04-03
JPH08191267A (ja) 1996-07-23
CA2158115C (en) 1999-07-13
GB2293525A (en) 1996-03-27
DE19533954C2 (de) 2000-10-05
KR960012787A (ko) 1996-04-20
JP3070656B2 (ja) 2000-07-31

Similar Documents

Publication Publication Date Title
SE9503285D0 (sv) Förfarande och anordning för ökning av spektrumeffektiviteten
MX9801829A (es) Sistema celular inalambrico.
MY100651A (en) Method and apparatus for communicating variable length messages between a primary station and remote stations of a data communications system.
GB2290677B (en) Interterminal direct communication in digital mobile communicaion system
ATE77191T1 (de) Digitales funkuebertragungsverfahren.
MY151409A (en) Base station synchronization
FI942524A (sv) Förfarande för synkronisering av abonnentterminaler, basstation samt abonnentterminal
AU4666696A (en) Allocation of time slots in a mobile communication system
ATE168841T1 (de) Synchronisation einer telekommunikationsverbindung in einem mobilen kommunikationssystem
NO20034451D0 (no) Radiotelefonsystem for grupper av fjernabonnenter
FI950745A (sv) Plockande av mobilkommunikationsanordningar från en direktkanal
EP0617522A3 (de) Kommunikationssystem zum Anschluss an eine Basisstation eines mehrzellularen, drahtlosen Fernsprechsystems.
AU7091691A (en) Method of assigning optimal channel in multi-station radio communications system
MY113245A (en) Personal handy phone system
EP0841761A3 (en) Communication method, base station and terminal apparatus using time slots
MY122047A (en) Dual mode portable telephone unit.
CA2242296A1 (en) Method and apparatus for providing packet data service in a communication system
GB2339649B (en) Communication method and apparatus
CA2219366A1 (en) Method and apparatus for indicating to a wireless network the operational mode of a wireless communicator
ATE259559T1 (de) Verfahren und funk-kommunikationssystem zur synchronisation von teilnehmerstationen
MY109590A (en) Communications system with extended channels
MX9801827A (es) Sistema de comunicacion inalambrica.
SE9000390L (sv) Traadloest, digitalt kommunikationssystem
ES2020845A6 (es) Sistema telefonico digital inalambrico.

Legal Events

Date Code Title Description
NUG Patent has lapsed