NL9000331A - Draadloos digitaal telefoonsysteem. - Google Patents

Draadloos digitaal telefoonsysteem. Download PDF

Info

Publication number
NL9000331A
NL9000331A NL9000331A NL9000331A NL9000331A NL 9000331 A NL9000331 A NL 9000331A NL 9000331 A NL9000331 A NL 9000331A NL 9000331 A NL9000331 A NL 9000331A NL 9000331 A NL9000331 A NL 9000331A
Authority
NL
Netherlands
Prior art keywords
signal
station
base station
subscriber
emulated base
Prior art date
Application number
NL9000331A
Other languages
English (en)
Dutch (nl)
Original Assignee
Int Mobile Machines
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 Int Mobile Machines filed Critical Int Mobile Machines
Publication of NL9000331A publication Critical patent/NL9000331A/nl

Links

Classifications

    • 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
    • H04M1/72505—Radio link set-up procedures
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/0035—Synchronisation arrangements detecting errors in frequency or phase
    • 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
    • H04B7/2603—Arrangements for wireless physical layer control
    • H04B7/2606—Arrangements for base station coverage control, e.g. by using relays in tunnels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • 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
    • H04W88/02—Terminal devices
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
NL9000331A 1987-11-20 1990-02-12 Draadloos digitaal telefoonsysteem. NL9000331A (nl)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US12339587 1987-11-20
US07/123,395 US4935927A (en) 1987-11-20 1987-11-20 Base station emulator
CA002009234A CA2009234C (fr) 1987-11-20 1990-02-02 Emulateur de station de base
CA2009234 1990-02-02
SE9201163A SE470393B (sv) 1987-11-20 1992-04-13 System och förfarande för duplexkommunikation mellan en första station och en eller flera andra stationer över en av ett flertal tillgängliga frekvenser
SE9201163 1992-04-13

Publications (1)

Publication Number Publication Date
NL9000331A true NL9000331A (nl) 1991-09-02

Family

ID=27168707

Family Applications (1)

Application Number Title Priority Date Filing Date
NL9000331A NL9000331A (nl) 1987-11-20 1990-02-12 Draadloos digitaal telefoonsysteem.

Country Status (8)

Country Link
US (1) US4935927A (fr)
AU (1) AU617030B2 (fr)
BE (1) BE1003825A3 (fr)
CA (1) CA2009234C (fr)
DE (1) DE4003820C2 (fr)
FR (1) FR2658372B1 (fr)
NL (1) NL9000331A (fr)
SE (1) SE470393B (fr)

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US5347562A (en) * 1989-08-18 1994-09-13 Hutchinson Personal Communications Limited Synchronizing groups of base stations in time division duplex communication systems
DE4118993A1 (de) * 1991-06-08 1992-12-10 Aeg Mobile Communication Mobiltelefonanordnung
CA2085722C (fr) * 1992-01-08 1997-02-25 Samuel Rocco Paniccia Jr. Utilisation d'un oscillateur a cristal commande par la tension dans l'unite de base d'un systeme telephonique sans fil a deux combines
TW239910B (fr) * 1992-08-21 1995-02-01 Motorola Inc
US5285443A (en) * 1992-08-25 1994-02-08 Motorola, Inc. Method and apparatus for synchronizing a time division duplexing communication system
US7082106B2 (en) 1993-01-08 2006-07-25 Multi-Tech Systems, Inc. Computer-based multi-media communications system and method
US5345327A (en) * 1993-03-29 1994-09-06 At&T Bell Laboratories Digital infrared communications system with edge detection
GB2285723B (en) * 1994-01-18 1997-09-10 Motorola Ltd Communications system
JP2629628B2 (ja) * 1994-12-15 1997-07-09 日本電気株式会社 簡易型携帯電話装置及びその通信方式
DE19520024A1 (de) * 1995-05-31 1996-12-05 Siemens Ag Universelles Mobil-Telekommunikationssystem
DE19542390A1 (de) * 1995-11-14 1997-05-15 R & S Bick Mobilfunk Gmbh Funknetz
US5946631A (en) 1996-10-17 1999-08-31 Philips Electronics North America Corporation Real-time CSMA method having the capability to adaptively vary cell sizes and a wireless network for implementing the same
FI103855B1 (fi) * 1996-10-30 1999-09-30 Nokia Telecommunications Oy Kanavanvaihtomenetelmä ja solukkoradioverkko
US20060262832A1 (en) * 1997-03-12 2006-11-23 Interdigital Technology Corporation Convolutionally encoding and decoding multiple data streams
US6134283A (en) * 1997-11-18 2000-10-17 Amati Communications Corporation Method and system for synchronizing time-division-duplexed transceivers
DE19811630C2 (de) * 1998-03-18 2002-11-21 Siemens Ag Datenadapter für Kommunikationseinrichtungen zum Fernübertragen von Nutzdaten, insbesondere von Paket- und/oder Sprachdaten
US6484027B1 (en) * 1998-06-15 2002-11-19 Sbc Technology Resources, Inc. Enhanced wireless handset, including direct handset-to-handset communication mode
DE69930091T2 (de) * 1998-07-28 2006-08-17 Canon K.K. Verfahren and Vorrichtung zur Nachrichtenübertragung in einem Netzwerk
ES2322680T3 (es) 1998-07-28 2009-06-24 Canon Kk Metodo y dispositivo para comunicacion en una red.
US6415146B1 (en) * 1999-05-25 2002-07-02 Lucent Technologies Inc. Wireless system enabling mobile-to-mobile communication
DE19925262A1 (de) * 1999-06-01 2001-01-25 Siemens Ag Modemübertragung in TDMA-Funksystemen
US20020071479A1 (en) * 2000-10-27 2002-06-13 L-3 Communications Corporation Use of common waveform in forward and reverse channels to reduce cost in point-to-multipoint system and to provide point-to-point mode
DE10106807B4 (de) * 2001-02-14 2005-06-23 Siemens Ag Verfahren zum Synchronisieren von Stationen in einem Funk-Kommunikationssystem, insbesondere Mobilfunksystem
DE10147139A1 (de) * 2001-09-25 2003-04-24 Siemens Ag Verfahren und Funk-Kommunikationssystem zur Synchronisation von Teilnehmerstationen
US20040266425A1 (en) * 2003-06-24 2004-12-30 Sbc, Inc. Wireless wide area network charger and cradle
US7616950B2 (en) * 2003-09-04 2009-11-10 At&T Intellectual Property I, L.P. Call forwarding control device and method of call management
US8526977B2 (en) * 2003-09-23 2013-09-03 At&T Intellectual Property I, L.P. Location based call routing for call answering services
US7769392B2 (en) * 2003-09-23 2010-08-03 At&T Intellectual Property I, L.P. Method and system for forwarding wireless communications
US20050064853A1 (en) * 2003-09-23 2005-03-24 Sbc Knowledge Ventures, L.P. Unified telephone handset for personal communications based on wireline and wireless network convergence
US7577427B2 (en) * 2003-11-05 2009-08-18 At&T Intellectual Property I, L.P. System and method of transitioning between cellular and voice over internet protocol communication
US20050277431A1 (en) * 2004-06-14 2005-12-15 Sbc Knowledge Ventures, Lp System and method for managing wireless data communications
US20060003806A1 (en) * 2004-07-02 2006-01-05 Sbc Knowledge Ventures, L.P. Phone synchronization device and method of handling personal information
US7580837B2 (en) 2004-08-12 2009-08-25 At&T Intellectual Property I, L.P. System and method for targeted tuning module of a speech recognition system
US7242751B2 (en) 2004-12-06 2007-07-10 Sbc Knowledge Ventures, L.P. System and method for speech recognition-enabled automatic call routing
US7751551B2 (en) 2005-01-10 2010-07-06 At&T Intellectual Property I, L.P. System and method for speech-enabled call routing
US8005204B2 (en) 2005-06-03 2011-08-23 At&T Intellectual Property I, L.P. Call routing system and method of using the same
US7657020B2 (en) 2005-06-03 2010-02-02 At&T Intellectual Property I, Lp Call routing system and method of using the same
US7813371B2 (en) * 2007-03-21 2010-10-12 Kapsch Trafficcom Ag System and method for short range communication using adaptive channel intervals

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3230458A (en) * 1962-05-18 1966-01-18 Collins Radio Co Automatic gain control circuit with fast change of time constant
DE2340136C1 (de) * 1973-08-08 1978-04-27 Siemens Ag Funkuebertragungssystem
US4253188A (en) * 1979-06-07 1981-02-24 Ford Motor Company Clock synchronization for data communication receiver
FR2502426A1 (fr) * 1981-03-20 1982-09-24 Trt Telecom Radio Electr Systeme de transmission d'informations entre une station principale et des stations secondaires operant selon un procede amrt
DE3118018A1 (de) * 1981-05-07 1982-11-25 Standard Elektrik Lorenz Ag, 7000 Stuttgart Nachrichtenuebertragungssystem
SE453449B (sv) * 1982-07-06 1988-02-01 Ericsson Telefon Ab L M Anleggning for tradlos overforing av telefonsamtal
US4630314A (en) * 1982-09-27 1986-12-16 Meteor Communications Corporation, Inc. Meteor burst communication system
JPH0619904B2 (ja) * 1983-05-20 1994-03-16 日本ビクター株式会社 デジタル信号の波形処理方式
CH672384A5 (fr) * 1984-03-07 1989-11-15 Autophon Ascom Ag
DE3423640A1 (de) * 1984-06-27 1986-01-09 Standard Elektrik Lorenz Ag, 7000 Stuttgart Funksystem
DE3423780C2 (de) * 1984-06-28 1994-05-19 Aeg Mobile Communication Simplex-Funksystem
US4644561A (en) * 1985-03-20 1987-02-17 International Mobile Machines Corp. Modem for RF subscriber telephone system
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
US4754450A (en) * 1986-03-25 1988-06-28 Motorola, Inc. TDM communication system for efficient spectrum utilization
GB8609499D0 (en) * 1986-04-18 1986-05-21 Gen Electric Co Plc Digital transmission system
FR2599202A1 (fr) * 1986-05-23 1987-11-27 Girard Patrick Procede et systeme de communication a plusieurs postes fonctionnant en emetteur et en recepteur travaillant sur une seule frequence
US4785450B1 (en) * 1987-08-06 1999-10-12 Interdigital Tech Corp Apparatus and method for obtaining frequency agility in digital communication system
DE3736020A1 (de) * 1987-10-23 1989-05-03 Bosch Gmbh Robert Funknetz

Also Published As

Publication number Publication date
FR2658372B1 (fr) 1994-05-06
DE4003820A1 (de) 1991-08-14
BE1003825A3 (fr) 1992-06-23
SE470393B (sv) 1994-02-07
DE4003820C2 (de) 1998-11-26
SE9201163D0 (sv) 1992-04-13
US4935927A (en) 1990-06-19
AU4915890A (en) 1991-08-08
CA2009234C (fr) 1994-10-04
FR2658372A1 (fr) 1991-08-16
CA2009234A1 (fr) 1991-08-02
SE9201163L (sv) 1992-04-13
AU617030B2 (en) 1991-11-14

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A1B A search report has been drawn up
BC A request for examination has been filed
DNT Communications of changes of names of applicants whose applications have been laid open to public inspection

Free format text: INTERDIGITAL COMMUNICATIONS CORPORATION

CNR Transfer of rights (patent application after its laying open for public inspection)

Free format text: INTERDIGITAL TECHNOLOGY CORPORATION

BV The patent application has lapsed