NO972297L - Digitalt mobilkommunikasjonssystem - Google Patents

Digitalt mobilkommunikasjonssystem

Info

Publication number
NO972297L
NO972297L NO972297A NO972297A NO972297L NO 972297 L NO972297 L NO 972297L NO 972297 A NO972297 A NO 972297A NO 972297 A NO972297 A NO 972297A NO 972297 L NO972297 L NO 972297L
Authority
NO
Norway
Prior art keywords
transcoders
mobile communication
voice
communication system
bts
Prior art date
Application number
NO972297A
Other languages
English (en)
Other versions
NO972297D0 (no
Inventor
Matti Lehtimaeki
Original Assignee
Nokia Telecommunications Oy
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 Nokia Telecommunications Oy filed Critical Nokia Telecommunications Oy
Publication of NO972297D0 publication Critical patent/NO972297D0/no
Publication of NO972297L publication Critical patent/NO972297L/no

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
    • H04W88/18—Service support devices; Network management devices
    • H04W88/181—Transcoding devices; Rate adaptation devices

Landscapes

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

Abstract

Foreliggende oppfinnelse angår et digitalt mobilkommunikasjonssystem hvor mobilstasjoner (MS) og det faste nettet omfatter talekodere. Talekoderne i det faste nettet befinner seg fjernt fra basestasjonene (BTS) i transkodere (TRCU). I MMC-anrop styres imidlertid transkoderne for å fungere slik at tie rammer som mottas fra en første basestasjon (BTS), fremsendes med små modifikasjoner gjennom et par tandem-koplede transkodere til en andre basestasjon, uten å utføre noen talekoding eller dekoding i transkoderne. Følgelig utføres talekoding bare i mobilstasjonene, og taleparametrene leveres ganske enkelt gjennom mobilkommunikasjonsnettet, hvilket resulterer i en betydelig forbedring i talekvaliteten, sammenlignet med den konvensjonelle tandemkodingen.
NO972297A 1994-11-21 1997-05-20 Digitalt mobilkommunikasjonssystem NO972297L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI945470A FI98972C (fi) 1994-11-21 1994-11-21 Digitaalinen matkaviestinjärjestelmä
PCT/FI1995/000641 WO1996016521A1 (en) 1994-11-21 1995-11-21 Digital mobile communication system

Publications (2)

Publication Number Publication Date
NO972297D0 NO972297D0 (no) 1997-05-20
NO972297L true NO972297L (no) 1997-07-18

Family

ID=8541840

Family Applications (1)

Application Number Title Priority Date Filing Date
NO972297A NO972297L (no) 1994-11-21 1997-05-20 Digitalt mobilkommunikasjonssystem

Country Status (9)

Country Link
US (1) US5953666A (no)
EP (1) EP0793893A1 (no)
JP (1) JPH10509850A (no)
CN (1) CN1171187A (no)
AU (1) AU706844B2 (no)
CA (1) CA2205181A1 (no)
FI (1) FI98972C (no)
NO (1) NO972297L (no)
WO (1) WO1996016521A1 (no)

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5768308A (en) * 1994-12-19 1998-06-16 Northern Telecom Limited System for TDMA mobile-to-mobile VSELP codec bypass
DE19516078B4 (de) * 1995-05-05 2006-06-08 Robert Bosch Gmbh Verfahren zur Übertragung von Daten, insbesondere GSM-Daten
DE19544367A1 (de) 1995-11-29 1997-06-05 Bosch Gmbh Robert Verfahren zum Übertragen von Daten, insbesondere von GSM-Daten
FI102445B (fi) * 1996-02-08 1998-11-30 Nokia Telecommunications Oy Transmissiolaitteisto keskusten väliselle yhteydelle
GB2316277B (en) * 1996-08-09 2001-03-14 Motorola Ltd Transcoder and method for a non-tandem coding operation
US6269331B1 (en) * 1996-11-14 2001-07-31 Nokia Mobile Phones Limited Transmission of comfort noise parameters during discontinuous transmission
GB2320166A (en) * 1996-12-09 1998-06-10 Motorola Ltd method of reverting to tandem operation between transcoders of a communication system
US6041230A (en) * 1997-03-13 2000-03-21 Nokia Telecommunications Oy Transmission method and a cellular radio system
FI104872B (fi) * 1997-04-11 2000-04-14 Nokia Networks Oy Menetelmä matkaviestinjärjestelmän kuormituksen hallitsemiseksi
FI105372B (fi) * 1997-07-22 2000-07-31 Nokia Networks Oy TRAU-kehyksen tunnistaminen matkapuhelinjärjestelmässä
US6512924B2 (en) * 1997-10-01 2003-01-28 Ntt Mobile Communications Network Inc. Mobile communications system
GB2332598B (en) * 1997-12-20 2002-12-04 Motorola Ltd Method and apparatus for discontinuous transmission
AU5764698A (en) * 1997-12-31 1999-07-26 Nokia Telecommunications Oy Method for performing discontinous transmission in an asynchronous transfer mode
DE19804581C2 (de) * 1998-02-05 2000-08-17 Siemens Ag Verfahren und Funk-Kommunikationssystem zur Übertragung von Sprachinformation
FI116642B (fi) * 1998-02-09 2006-01-13 Nokia Corp Puheparametrien käsittelymenetelmä, puhekoodauksen käsittely-yksikkö ja verkkoelementti
NO310950B1 (no) * 1999-03-10 2001-09-17 Ericsson Telefon Ab L M Anordning for forbedring av talekvalitet, spesielt for VoIP (Voice over IP) anrop
US6731948B1 (en) * 1999-05-12 2004-05-04 Samsung Electronics Co., Ltd. Method for supporting a discontinuous transmission mode in a base station in a mobile communication system
GB2350532B (en) * 1999-05-28 2001-08-08 Mitel Corp Method to generate telephone comfort noise during silence in a packetized voice communication system
CA2273522C (en) * 1999-06-01 2009-03-24 Nortel Networks Corporation High speed ethernet based on sonet technology
US6512918B1 (en) * 1999-08-19 2003-01-28 Telefonaktiebolaget Lm Ericsson (Publ) Methods and arrangements for transcoder selection and transcoding data within packet-switched communication networks supporting radio interfaces
EP1124386A1 (en) * 2000-02-11 2001-08-16 Telefonaktiebolaget Lm Ericsson Tone signalling with TFO communication links
GB0006230D0 (en) * 2000-03-16 2000-05-03 Univ Strathclyde Mobile communications newworks
US6571212B1 (en) 2000-08-15 2003-05-27 Ericsson Inc. Mobile internet protocol voice system
FI20002094A7 (fi) * 2000-09-22 2002-03-23 Nokia Corp Matkaviestinten välisten yhteyksien järjestäminen langattomassa tietoliikennejärjestelmässä
GB0029273D0 (en) * 2000-11-30 2001-01-17 Scient Generics Ltd Acoustic control system
JP3449353B2 (ja) * 2000-12-13 2003-09-22 日本電気株式会社 通信方式およびトランスコーダのアライメント方法
US6708147B2 (en) * 2001-02-28 2004-03-16 Telefonaktiebolaget Lm Ericsson(Publ) Method and apparatus for providing comfort noise in communication system with discontinuous transmission
US7158597B2 (en) * 2001-08-20 2007-01-02 Tellabs Operations, Inc. TFO resynchronization system
JP4518714B2 (ja) * 2001-08-31 2010-08-04 富士通株式会社 音声符号変換方法
EP1440586B1 (en) * 2001-10-08 2008-07-02 Telefonaktiebolaget LM Ericsson (publ) Method and system of managing a call in a telecommunication system
JP2004061646A (ja) * 2002-07-25 2004-02-26 Fujitsu Ltd Ｔｆｏ機能を有する音声符号化器および方法
US20040125965A1 (en) * 2002-12-27 2004-07-01 William Alberth Method and apparatus for providing background audio during a communication session
US20040179555A1 (en) * 2003-03-11 2004-09-16 Cisco Technology, Inc. System and method for compressing data in a communications environment
US7469209B2 (en) * 2003-08-14 2008-12-23 Dilithium Networks Pty Ltd. Method and apparatus for frame classification and rate determination in voice transcoders for telecommunications
US7436786B2 (en) * 2003-12-09 2008-10-14 International Business Machines Corporation Telecommunications system for minimizing the effect of white noise data packets for the generation of required white noise on transmission channel utilization
US7733793B1 (en) 2003-12-10 2010-06-08 Cisco Technology, Inc. System and method for suppressing silence data in a network environment
US7668128B1 (en) * 2004-05-17 2010-02-23 Avaya Inc. Features of power save in 802.11e wireless local area networks (WLANs)
WO2009000292A1 (en) * 2007-06-25 2008-12-31 Telefonaktiebolaget Lm Ericsson (Publ) Technique for reducing transcoding operations in a telecommunication system
CN101351028B (zh) * 2007-07-19 2011-10-26 中兴通讯股份有限公司 基于IP Abis接口的下行不连续语音传输的方法和装置
CN101350706B (zh) * 2007-07-19 2011-02-23 展讯通信（上海）有限公司 坏帧标志及非可靠帧标志设置方法
CN101610131B (zh) * 2008-06-16 2013-04-17 中兴通讯股份有限公司 一种半速率trau帧的上行扩展控制位的发送方法
CN102025411B (zh) * 2010-10-11 2016-09-28 中兴通讯股份有限公司 一种时分双工系统及其动态帧结构和配置方法
US8830966B2 (en) 2011-07-21 2014-09-09 Lsi Corporation Discontinuous transmission in a frame

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5077741A (en) * 1989-12-05 1991-12-31 Motorola, Inc. Data throughput enhancement
NZ243007A (en) * 1991-06-19 1995-02-24 Ericsson Telefon Ab L M Radio telephony: digital speech codec provided at regional stations for analog transmissions
WO1995015665A1 (en) * 1993-12-02 1995-06-08 Motorola Inc. Communication across regional entities
FI941125A7 (fi) * 1994-03-09 1995-09-10 Nokia Telecommunications Oy Matkaviestinjärjestelmä ja puhelunohjausmenetelmä
US5771452A (en) * 1995-10-25 1998-06-23 Northern Telecom Limited System and method for providing cellular communication services using a transcoder

Also Published As

Publication number Publication date
CN1171187A (zh) 1998-01-21
FI98972C (fi) 1997-09-10
JPH10509850A (ja) 1998-09-22
AU706844B2 (en) 1999-06-24
FI945470A7 (fi) 1996-05-22
NO972297D0 (no) 1997-05-20
US5953666A (en) 1999-09-14
CA2205181A1 (en) 1996-05-30
FI98972B (fi) 1997-05-30
WO1996016521A1 (en) 1996-05-30
AU3929995A (en) 1996-06-17
EP0793893A1 (en) 1997-09-10
FI945470A0 (fi) 1994-11-21

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