SE518431C2 - Förfarande och anordning för ökning av spektrumeffektiviteten - Google Patents

Förfarande och anordning för ökning av spektrumeffektiviteten

Info

Publication number
SE518431C2
SE518431C2 SE9503285A SE9503285A SE518431C2 SE 518431 C2 SE518431 C2 SE 518431C2 SE 9503285 A SE9503285 A SE 9503285A SE 9503285 A SE9503285 A SE 9503285A SE 518431 C2 SE518431 C2 SE 518431C2
Authority
SE
Sweden
Prior art keywords
base station
spectrum efficiency
increasing
unit
handset
Prior art date
Application number
SE9503285A
Other languages
English (en)
Swedish (sv)
Other versions
SE9503285D0 (sv
SE9503285L (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/xx
Publication of SE9503285L publication Critical patent/SE9503285L/xx
Publication of SE518431C2 publication Critical patent/SE518431C2/sv

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08Access point devices
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W56/00Synchronisation arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/204Multiple access
    • H04B7/212Time-division multiple access [TDMA]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J3/00Time-division multiplex systems
    • H04J3/02Details
    • H04J3/06Synchronising arrangements
    • H04J3/0635Clock or time synchronisation in a network
    • H04J3/0638Clock or time synchronisation among nodes; Internode synchronisation
    • H04J3/0652Synchronisation among time division multiple access [TDMA] nodes, e.g. time triggered protocol [TTP]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/72Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/725Cordless telephones
    • H04M1/72502Cordless 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 SE9503285L (sv) 1996-03-24
SE518431C2 true 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 (de)
JP (1) JP3070656B2 (de)
KR (1) KR0149951B1 (de)
CN (1) CN1082324C (de)
BR (1) BR9504126A (de)
CA (1) CA2158115C (de)
DE (1) DE19533954C2 (de)
FR (1) FR2725086B1 (de)
GB (1) GB2293525B (de)
SE (1) SE518431C2 (de)
TW (1) TW288238B (de)

Families Citing this family (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK0692174T3 (da) * 1994-02-01 1999-11-15 Ericsson Telefon Ab L M Koblede registre
SE502656C2 (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
CA2300129C (en) 1997-08-14 2003-11-04 Siemens Aktiengesellschaft Method and arrangement for radio transmission of data
EP0901242B1 (de) * 1997-09-08 2005-11-23 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 (de) * 1998-02-18 1999-08-25 Sony International (Europe) GmbH Header-Struktur für TDD-Systeme
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
US6169730B1 (en) 1998-05-15 2001-01-02 Northrop Grumman Corporation Wireless communications protocol
US6223062B1 (en) 1998-05-15 2001-04-24 Northrop Grumann Corporation Communications interface adapter
US6243573B1 (en) 1998-05-15 2001-06-05 Northrop Grumman Corporation Personal communications system
US6141426A (en) * 1998-05-15 2000-10-31 Northrop Grumman Corporation Voice operated switch for use in high noise environments
USD421002S (en) * 1998-05-15 2000-02-22 Northrop Grumman Corporation Personal communications unit handset
US6041243A (en) * 1998-05-15 2000-03-21 Northrop Grumman Corporation Personal communications unit
US6304559B1 (en) 1998-05-15 2001-10-16 Northrop Grumman Corporation Wireless communications protocol
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
FR2781956A1 (fr) * 1998-07-28 2000-02-04 Canon Kk Procede et dispositif de communication sur un reseau
FR2781954B1 (fr) * 1998-07-28 2000-11-03 Canon Kk Procede et dispositif de communication sur un reseau
DE69940685D1 (de) * 1998-07-28 2009-05-20 Canon Kk Verfahren und Vorrichtung zur Nachrichtenübertragung in einem Netzwerk
FR2781953A1 (fr) * 1998-07-28 2000-02-04 Canon Kk Procede et dispositif de communication sur un reseau
FR2781958A1 (fr) * 1998-07-28 2000-02-04 Canon Kk Procede et dispositif de communication sur un reseau
ATE319272T1 (de) 1998-07-28 2006-03-15 Canon Kk Verfahren and vorrichtung zur nachrichtenübertragung in einem netzwerk
FR2781960A1 (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
US7715508B2 (en) 2005-11-15 2010-05-11 Tensorcomm, Incorporated Iterative interference cancellation using mixed feedback weights and stabilizing step sizes
US8179946B2 (en) * 2003-09-23 2012-05-15 Rambus Inc. Systems and methods for control of advanced receivers
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
US7826516B2 (en) 2005-11-15 2010-11-02 Rambus Inc. Iterative interference canceller for wireless multiple-access systems with multiple receive antennas
US7991088B2 (en) 2005-11-15 2011-08-02 Tommy Guess Iterative interference cancellation using mixed feedback weights and stabilizing step sizes
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
US7623602B2 (en) * 2005-11-15 2009-11-24 Tensorcomm, Inc. Iterative interference canceller for wireless multiple-access systems employing closed loop transmit diversity
US20070110135A1 (en) * 2005-11-15 2007-05-17 Tommy Guess Iterative interference cancellation for MIMO-OFDM receivers
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
US5142534A (en) * 1990-10-17 1992-08-25 O'neill Communications, Inc. Wireless integrated voice-data communication system
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
US5212715A (en) * 1991-01-25 1993-05-18 Motorola, Inc. Digital communication signalling system
US5144668A (en) * 1991-01-25 1992-09-01 Motorola, Inc. Signal overlap detection in a communication 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
AU4727893A (en) * 1992-08-18 1994-03-15 At & T Wireless Communications Products Ltd. Method of establishing a communication link in a digital cordless telephone system
TW239910B (de) * 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
JPH08191267A (ja) 1996-07-23
KR0149951B1 (ko) 1999-05-15
TW288238B (de) 1996-10-11
KR960012787A (ko) 1996-04-20
FR2725086B1 (fr) 1999-12-31
MX9504037A (es) 1998-12-31
GB9518820D0 (en) 1995-11-15
CN1132452A (zh) 1996-10-02
GB2293525B (en) 1999-01-20
SE9503285D0 (sv) 1995-09-22
FR2725086A1 (fr) 1996-03-29
DE19533954C2 (de) 2000-10-05
JP3070656B2 (ja) 2000-07-31
SE9503285L (sv) 1996-03-24
GB2293525A (en) 1996-03-27
CA2158115C (en) 1999-07-13
BR9504126A (pt) 1996-07-30
CN1082324C (zh) 2002-04-03
DE19533954A1 (de) 1996-03-28
US5606560A (en) 1997-02-25
CA2158115A1 (en) 1996-03-24

Similar Documents

Publication Publication Date Title
SE518431C2 (sv) Förfarande och anordning för ökning av spektrumeffektiviteten
CA2157727C (en) Method and apparatus for providing a synchronous communication environment
AU724739B2 (en) Method and arrangement for synchronization of radio receivers in a cellular system
JP2705802B2 (ja) 自動的に選択される伝送周波数をもつ無線通信システム
JP3869656B2 (ja) 非同期移動通信システムから同期移動通信システムへのハンドオフ遂行装置及び方法
JPH04111544A (ja) 無線チャネル割当方法
JPH07162940A (ja) 無線通信方式
JP2001526492A (ja) 加入者機/無線ベース機のスーパーフレーム整合を用いたs−cdma固定ワイヤレスループシステム
JP2001516166A (ja) 搬送周波数シーケンスを発生する方法および装置
JP3846003B2 (ja) 移動局送受信機
JP3830068B2 (ja) 移動通信における信号品質検出方法、および、移動局の制御方法
JPH099343A (ja) 無線通信装置
JP3387413B2 (ja) 無線送受信方法
JP2003510955A (ja) 周波数間測定方法
JPH07327263A (ja) 移動体通信装置
KR100473738B1 (ko) 셀룰러시스템에서의무선송수신기동기화방법및장치
KR100292952B1 (ko) 이동통신 시스템에서 통화 권역 확장장치
MXPA95004037A (en) Method and apparatus for increasing spec efficiency
JPH11317979A (ja) 直接拡散cdma移動通信システムにおける通信用チャネル制御方法並びにこの通信用チャネル制御方法を用いる基地局及び移動局
JP2005033415A (ja) 無線通信装置及び通信方式
JPH08331112A (ja) クロック信号発生回路
JP2003189356A (ja) 移動無線装置及びそれを用いた無線システム並びにそれらに用いる動作モード切替方法
JP2004254058A (ja) 移動無線装置及び移動無線装置を用いたデジタル移動通信システム
JPH08256088A (ja) 周波数ホッピング受信装置
JPH08130765A (ja) 無線電話親局装置

Legal Events

Date Code Title Description
NUG Patent has lapsed