DE69523665T2 - Übertragungsleistungsregelung für Mobilfunk unter Verwendung von CDMA und Viterbi-Dekodierung - Google Patents

Übertragungsleistungsregelung für Mobilfunk unter Verwendung von CDMA und Viterbi-Dekodierung

Info

Publication number
DE69523665T2
DE69523665T2 DE1995623665 DE69523665T DE69523665T2 DE 69523665 T2 DE69523665 T2 DE 69523665T2 DE 1995623665 DE1995623665 DE 1995623665 DE 69523665 T DE69523665 T DE 69523665T DE 69523665 T2 DE69523665 T2 DE 69523665T2
Authority
DE
Germany
Prior art keywords
cdma
power control
transmission power
mobile radio
viterbi decoding
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.)
Expired - Fee Related
Application number
DE1995623665
Other languages
English (en)
Other versions
DE69523665D1 (de
Inventor
Tomohiro Dohi
Mamoru Sawahashi
Koji Ohno
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.)
NTT Docomo Inc
Original Assignee
NTT Docomo 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 NTT Docomo Inc filed Critical NTT Docomo Inc
Publication of DE69523665D1 publication Critical patent/DE69523665D1/de
Application granted granted Critical
Publication of DE69523665T2 publication Critical patent/DE69523665T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0054—Maximum-likelihood or sequential decoding, e.g. Viterbi, Fano, ZJ algorithms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/245—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account received signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0072—Error control for data other than payload data, e.g. control data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0245—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal according to signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/08—Closed loop power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/146—Uplink power control
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Artificial Intelligence (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Error Detection And Correction (AREA)
DE1995623665 1994-05-20 1995-05-18 Übertragungsleistungsregelung für Mobilfunk unter Verwendung von CDMA und Viterbi-Dekodierung Expired - Fee Related DE69523665T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10694094 1994-05-20
JP7793895A JP2877248B2 (ja) 1994-05-20 1995-04-03 Ｃｄｍａシステムにおける送信電力制御方法および装置

Publications (2)

Publication Number Publication Date
DE69523665D1 DE69523665D1 (de) 2001-12-13
DE69523665T2 true DE69523665T2 (de) 2002-08-01

Family

ID=26418993

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1995623665 Expired - Fee Related DE69523665T2 (de) 1994-05-20 1995-05-18 Übertragungsleistungsregelung für Mobilfunk unter Verwendung von CDMA und Viterbi-Dekodierung

Country Status (7)

Country Link
US (1) US5623486A (de)
EP (1) EP0683570B1 (de)
JP (1) JP2877248B2 (de)
KR (1) KR0143826B1 (de)
CN (1) CN1094296C (de)
CA (1) CA2149679C (de)
DE (1) DE69523665T2 (de)

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JP3818702B2 (ja) 1996-08-07 2006-09-06 松下電器産業株式会社 Ｃｄｍａ無線伝送システム並びに該システムにおいて用いられる送信電力制御装置および送信電力制御用測定装置
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US6075974A (en) * 1996-11-20 2000-06-13 Qualcomm Inc. Method and apparatus for adjusting thresholds and measurements of received signals by anticipating power control commands yet to be executed
JPH10173594A (ja) * 1996-12-06 1998-06-26 Hitachi Ltd 符号分割多元接続通信システム及び送信電力制御方法
US5987326A (en) * 1997-02-11 1999-11-16 Qualcomm Incorporated Transmit power reduction for a high speed CDMA link in soft handoff
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JP3397677B2 (ja) 1998-02-10 2003-04-21 松下電器産業株式会社 送信電力制御装置及び無線通信装置
FI108181B (fi) 1998-02-13 2001-11-30 Nokia Mobile Phones Ltd Tehonsäätömenetelmä
US6233438B1 (en) * 1998-03-26 2001-05-15 Ericsson Inc. Wide-range power control systems and methods for radio frequency transmitters and mobile radiotelephones
US6278701B1 (en) 1998-07-10 2001-08-21 Verizon Laboratories Inc. Capacity enhancement for multi-code CDMA with integrated services through quality of services and admission control
FI113426B (fi) 1998-07-16 2004-04-15 Nokia Corp Menetelmä lähetystehon säätämiseksi WCDMA-järjestelmässä
JP3587346B2 (ja) * 1998-08-07 2004-11-10 松下電器産業株式会社 無線通信装置および無線通信装置における送信電力制御方法
US6377555B1 (en) 1998-09-22 2002-04-23 Jhong Sam Lee Method for determining forward link channel powers for a CDMA cellular or PCS system
JP3817955B2 (ja) * 1999-03-02 2006-09-06 Ｋｄｄｉ株式会社 セルラーシステム送信電力制御方法
GB9908518D0 (en) 1999-04-14 1999-06-09 Nokia Telecommunications Oy Method for controlling transmission power
WO2000065744A1 (de) * 1999-04-22 2000-11-02 Siemens Aktiengesellschaft Verfahren zur regelung der sendeleistung in einem funksystem und entsprechendes funksystem
JP3374908B2 (ja) 1999-05-06 2003-02-10 日本電気株式会社 高速クローズトループ送信電力制御における基準値の更新方法
US6529494B1 (en) * 1999-09-21 2003-03-04 Telefonaktiebolaget Lm Ericsson (Publ) Downlink timeslot power control in a time division multiple access system
US6751448B1 (en) * 1999-10-13 2004-06-15 Intel Corporation Control of transmission power in a communication system
JP2001186082A (ja) * 1999-12-24 2001-07-06 Matsushita Electric Ind Co Ltd Ｃｄｍａ移動通信システム及び方法
US6449464B1 (en) * 1999-12-28 2002-09-10 Ericsson Inc. Method of reporting signal quality measurements from a mobile terminal with enhanced demodulation algorithm
JP2001320326A (ja) * 2000-03-03 2001-11-16 Sony Corp 通信システム、通信方法及び通信装置
JP3514217B2 (ja) 2000-06-29 2004-03-31 日本電気株式会社 ターボ復号方法及び受信機
US6985456B2 (en) * 2000-09-12 2006-01-10 Sharp Laboratories Of America, Inc. Method to reduce interference and increase effective capacity of power line networking systems
JP3478496B2 (ja) 2000-11-24 2003-12-15 松下電器産業株式会社 送信電力制御方法及びその装置並びに通信装置
SE0004923D0 (sv) * 2000-12-29 2000-12-29 Ericsson Telefon Ab L M Method and system of transmission power control
AU2005204257B2 (en) * 2001-05-14 2006-09-21 Interdigital Technology Corporation Channel quality measurements for downlink resource allocation
US8199726B2 (en) * 2001-05-14 2012-06-12 Interdigital Technology Corporation Channel quality measurements for downlink resource allocation
AU2006252118B8 (en) * 2001-05-14 2010-03-04 Interdigital Technology Corporation Channel quality measurements for downlink resource allocation
DE10155059A1 (de) * 2001-11-09 2003-05-22 Infineon Technologies Ag Verfahren und Einrichtung zur beschleunigten Akquisition von kanalkodierten Steuerdaten, insbesondere des SIGNAL-Felds beim Standard IEEE 802.11a
US6957175B2 (en) * 2002-11-08 2005-10-18 Interdigital Technology Corporation Method and apparatus for determining signal-to-interference ratio with reduced bias effect
JP4041733B2 (ja) 2002-12-19 2008-01-30 株式会社エヌ・ティ・ティ・ドコモ 送信電力制御方法及び制御装置
JP4458251B2 (ja) * 2004-07-13 2010-04-28 日本電気株式会社 移動通信システム、移動通信システムにおける送信電力制御方法及び移動局
GB2417167B (en) * 2004-08-13 2007-02-14 Ipwireless Inc Apparatus and method for communicating user equipment specific information in cellular communication system
JP4408783B2 (ja) * 2004-09-29 2010-02-03 Ｎｅｃエレクトロニクス株式会社 復号装置及び復号方法
US7697907B2 (en) * 2005-11-10 2010-04-13 Freescale Semiconductor, Inc. System and method for controlling the transmit power of a wireless module
US20090248084A1 (en) * 2008-03-27 2009-10-01 Beat Hintermann Systems and methods for performing ankle arthrodesis in a human patient
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Also Published As

Publication number Publication date
EP0683570B1 (de) 2001-11-07
CN1130851A (zh) 1996-09-11
EP0683570A3 (de) 1996-07-03
KR0143826B1 (ko) 1998-08-01
DE69523665D1 (de) 2001-12-13
EP0683570A2 (de) 1995-11-22
CN1094296C (zh) 2002-11-13
US5623486A (en) 1997-04-22
JPH0837515A (ja) 1996-02-06
KR950035155A (ko) 1995-12-30
JP2877248B2 (ja) 1999-03-31
CA2149679C (en) 1999-01-26
CA2149679A1 (en) 1995-11-21

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee