MX2009007186A - Dispositivo de transmision, dispositivo de recepcion, y metodo utilizado en un sistema de comunicacion movil que emplea multiplexor por division de frecuencia ortogonal. - Google Patents

Dispositivo de transmision, dispositivo de recepcion, y metodo utilizado en un sistema de comunicacion movil que emplea multiplexor por division de frecuencia ortogonal.

Info

Publication number
MX2009007186A
MX2009007186A MX2009007186A MX2009007186A MX2009007186A MX 2009007186 A MX2009007186 A MX 2009007186A MX 2009007186 A MX2009007186 A MX 2009007186A MX 2009007186 A MX2009007186 A MX 2009007186A MX 2009007186 A MX2009007186 A MX 2009007186A
Authority
MX
Mexico
Prior art keywords
signal
maintained
power
transmitted
time slot
Prior art date
Application number
MX2009007186A
Other languages
English (en)
Inventor
Mamoru Sawahashi
Kenichi Higuchi
Yoshihisa Kishiyama
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 MX2009007186A publication Critical patent/MX2009007186A/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H04L27/26134—Pilot insertion in the transmitter chain, e.g. pilot overlapping with data, insertion in time or frequency domain
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2627—Modulators
    • H04L27/2628—Inverse Fourier transform modulators, e.g. inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • 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
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/32—TPC of broadcast or control channels
    • H04W52/325—Power control of control or pilot channels
    • 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
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
    • H04W52/346—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading distributing total power among users or channels
    • 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)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transmitters (AREA)

Abstract

Se describe un dispositivo de transmisión que incluye: los medios para realizar la transformación rápida inversa de Fourier sobre una señal para la cual han sido mapeadas una señal de referencia y una señal de datos sobre los respectivos subportadores; y los medios para la radio-transmisión de una señal de transmisión. Una energía total asignada para una señal que es transmitida en un cierto lapso de tiempo, es mantenida al mismo nivel que la energía total asignada para una señal que es transmitida en otro lapso de tiempo. La densidad de energía de la señal de referencia por banda unitaria es ajustada mayor que la densidad de energía de la señal de datos por banda unitaria. Ya que la energía de transmisión total en cada lapso de tiempo es mantenida a un nivel constante, la eficiencia de amplificación de energía puede ser mantenida a un nivel alto. Además, ya que la señal de referencia es transmitida con una intensidad más alta que las otras señales, la precisión de la estimación de canal es también mantenida a un nivel alto.
MX2009007186A 2007-01-09 2007-12-27 Dispositivo de transmision, dispositivo de recepcion, y metodo utilizado en un sistema de comunicacion movil que emplea multiplexor por division de frecuencia ortogonal. MX2009007186A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007001858A JP4640844B2 (ja) 2007-01-09 2007-01-09 送信装置、送信方法及び通信システム
PCT/JP2007/075169 WO2008084719A1 (ja) 2007-01-09 2007-12-27 Ofdm方式を利用する移動通信システムで使用される送信装置、受信装置及び方法

Publications (1)

Publication Number Publication Date
MX2009007186A true MX2009007186A (es) 2009-07-15

Family

ID=39608613

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2009007186A MX2009007186A (es) 2007-01-09 2007-12-27 Dispositivo de transmision, dispositivo de recepcion, y metodo utilizado en un sistema de comunicacion movil que emplea multiplexor por division de frecuencia ortogonal.

Country Status (11)

Country Link
US (1) US8265043B2 (es)
EP (1) EP2104255B1 (es)
JP (1) JP4640844B2 (es)
KR (1) KR101420184B1 (es)
CN (2) CN103023847B (es)
AU (1) AU2007342808B2 (es)
BR (1) BRPI0720782A2 (es)
CA (1) CA2673385C (es)
MX (1) MX2009007186A (es)
RU (2) RU2467481C2 (es)
WO (1) WO2008084719A1 (es)

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Also Published As

Publication number Publication date
CA2673385C (en) 2015-08-11
US8265043B2 (en) 2012-09-11
CN101589568A (zh) 2009-11-25
BRPI0720782A2 (pt) 2014-02-04
WO2008084719A1 (ja) 2008-07-17
JP2008172377A (ja) 2008-07-24
JP4640844B2 (ja) 2011-03-02
RU2009129216A (ru) 2011-02-20
RU2535663C2 (ru) 2014-12-20
RU2467481C2 (ru) 2012-11-20
CA2673385A1 (en) 2008-07-17
AU2007342808A1 (en) 2008-07-17
US20100027512A1 (en) 2010-02-04
KR20090094835A (ko) 2009-09-08
KR101420184B1 (ko) 2014-07-17
CN103023847B (zh) 2016-02-24
EP2104255A4 (en) 2014-04-09
RU2012130601A (ru) 2014-01-27
EP2104255A1 (en) 2009-09-23
CN103023847A (zh) 2013-04-03
EP2104255B1 (en) 2015-08-26
AU2007342808B2 (en) 2013-01-24
CN101589568B (zh) 2013-08-21

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