CA2110029A1 - Mobile Radio Communication System - Google Patents

Mobile Radio Communication System

Info

Publication number
CA2110029A1
CA2110029A1 CA2110029A CA2110029A CA2110029A1 CA 2110029 A1 CA2110029 A1 CA 2110029A1 CA 2110029 A CA2110029 A CA 2110029A CA 2110029 A CA2110029 A CA 2110029A CA 2110029 A1 CA2110029 A1 CA 2110029A1
Authority
CA
Canada
Prior art keywords
switch circuit
radio communication
demultiplexed
communication system
mobile radio
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.)
Granted
Application number
CA2110029A
Other languages
French (fr)
Other versions
CA2110029C (en
Inventor
Shigeru Otsuka
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
Individual
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 Individual filed Critical Individual
Publication of CA2110029A1 publication Critical patent/CA2110029A1/en
Application granted granted Critical
Publication of CA2110029C publication Critical patent/CA2110029C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • H04W88/12—Access point controller devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • H04J3/1605—Fixed allocated frame structures
    • H04J3/1623—Plesiochronous digital hierarchy [PDH]
    • H04J3/1647—Subrate or multislot multiplexing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • H04J3/1682—Allocation of channels according to the instantaneous demands of the users, e.g. concentrated multiplexers, statistical multiplexers
    • H04J3/1688—Allocation of channels according to the instantaneous demands of the users, e.g. concentrated multiplexers, statistical multiplexers the demands of the users being taken into account after redundancy removal, e.g. by predictive coding, by variable sampling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems
    • 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
    • H04W88/18—Service support devices; Network management devices
    • H04W88/181—Transcoding devices; Rate adaptation devices

Abstract

A multiplex audio signal from an exchange appa-ratus is demultiplexed by a first multiplexer/demultiplex-er into demultiplexed signals that are supplied to a first switch circuit which switches between transmission paths to apply the demultiplexed signals to a plurality of audio coding circuits. Certain output signals from the audio coding circuits are supplied to a second switch circuit, time-division-multiplexed, and applied to the first switch circuit. The multiplexed signal is outputted from the first switch circuit for transmission in a given time slot over a radio communication path.
CA002110029A 1992-11-27 1993-11-25 Mobile radio communication system Expired - Fee Related CA2110029C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP31763692 1992-11-27
JP317636/92 1992-11-27

Publications (2)

Publication Number Publication Date
CA2110029A1 true CA2110029A1 (en) 1994-05-28
CA2110029C CA2110029C (en) 1997-05-06

Family

ID=18090372

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002110029A Expired - Fee Related CA2110029C (en) 1992-11-27 1993-11-25 Mobile radio communication system

Country Status (4)

Country Link
US (1) US5425031A (en)
EP (1) EP0599657B1 (en)
CA (1) CA2110029C (en)
DE (1) DE69323529T2 (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI932373A0 (en) * 1993-05-25 1993-05-25 Nokia Telecommunications Oy Basstation Foer cellular radio system as well as cellular radio system
JP2952857B2 (en) * 1993-10-07 1999-09-27 エニー株式会社 Mobile communication system and control method therefor
EP0662778B1 (en) * 1994-01-11 2005-10-12 NTT DoCoMo, Inc. Mobile radio communications system
FR2719428A1 (en) * 1994-04-27 1995-11-03 Trt Telecom Radio Electr Transmission system formed from at least one base station, a satellite station and a node station and base station and satellite station suitable for such a system.
US5604735A (en) * 1995-03-15 1997-02-18 Finisar Corporation High speed network switch
KR960040039A (en) * 1995-04-03 1996-11-25 김주용 Audible tone dedicated signal service apparatus and method of digital mobile communication exchange (MSC)
US5768268A (en) * 1995-07-19 1998-06-16 Watkins Johnson Company Wideband base station architecture for digital cellular communications system
JPH09102977A (en) * 1995-10-03 1997-04-15 Mitsubishi Electric Corp Base station system
US5771452A (en) * 1995-10-25 1998-06-23 Northern Telecom Limited System and method for providing cellular communication services using a transcoder
FI100571B (en) * 1995-11-15 1997-12-31 Nokia Telecommunications Oy Procedure and arrangement for asynchronous data transfer
US5996018A (en) * 1995-12-06 1999-11-30 International Business Machines Corporation Method and apparatus to reduce jitter and end-to-end delay for multimedia data signalling
EP0821506B1 (en) * 1995-12-25 2004-07-14 NTT DoCoMo, Inc. Multiplex transmitter for micro-frame
JPH1023497A (en) * 1996-06-13 1998-01-23 At & T Corp Cellular radio telephone system utilizing centralized base station
JP3745459B2 (en) * 1996-07-18 2006-02-15 富士通株式会社 Communication method and communication apparatus for wireless LAN system
JP3655716B2 (en) * 1996-12-03 2005-06-02 富士通株式会社 switch
US6172985B1 (en) 1998-01-28 2001-01-09 Gateway 2000, Inc. Automatic detection of pots line
US6522640B2 (en) 1998-01-28 2003-02-18 Gateway, Inc. Distributed modem for non-cellular cordless/wireless data communication for portable computers
ES2257079T3 (en) 1998-08-19 2006-07-16 Siemens Aktiengesellschaft CIRCUIT AND PROCEDURE TO REGISTER AND PLAY VOICE AND OTHER SOUNDS IN DIGITAL MOBILE TELEPHONE DEVICES.
US6604070B1 (en) * 1999-09-22 2003-08-05 Conexant Systems, Inc. System of encoding and decoding speech signals
US6961363B1 (en) * 1999-12-02 2005-11-01 International Business Machines Corporation Frequency look-ahead and link state history based scheduling in indoor wireless pico-cellular networks

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0168647A3 (en) * 1984-07-19 1988-07-27 ANT Nachrichtentechnik GmbH Mobile radio system for the transmission of digital signals
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
US4837800A (en) * 1988-03-18 1989-06-06 Motorola, Inc. Cellular data telephone system and cellular data telephone therefor
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
US5077741A (en) * 1989-12-05 1991-12-31 Motorola, Inc. Data throughput enhancement
US5111454A (en) * 1990-08-16 1992-05-05 Motorola, Inc. Digital cellular tdm system employing 6:1 packing of transcoded information
JP2628950B2 (en) * 1991-10-07 1997-07-09 株式会社日立製作所 Location registration method for mobile phone system

Also Published As

Publication number Publication date
EP0599657A3 (en) 1994-12-07
EP0599657B1 (en) 1999-02-17
CA2110029C (en) 1997-05-06
DE69323529T2 (en) 1999-10-21
US5425031A (en) 1995-06-13
EP0599657A2 (en) 1994-06-01
DE69323529D1 (en) 1999-03-25

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed
MKLA Lapsed

Effective date: 20021125