AR070197A1 - Simbolos de multiplexacion por division en frecuencia ortogonal ( ofdm) de duracion acortada - Google Patents

Simbolos de multiplexacion por division en frecuencia ortogonal ( ofdm) de duracion acortada

Info

Publication number
AR070197A1
AR070197A1 ARP090100150A ARP090100150A AR070197A1 AR 070197 A1 AR070197 A1 AR 070197A1 AR P090100150 A ARP090100150 A AR P090100150A AR P090100150 A ARP090100150 A AR P090100150A AR 070197 A1 AR070197 A1 AR 070197A1
Authority
AR
Argentina
Prior art keywords
frame
duration
ofdm
tbase
symbols
Prior art date
Application number
ARP090100150A
Other languages
English (en)
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of AR070197A1 publication Critical patent/AR070197A1/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
    • H04L27/26025—Numerology, i.e. varying one or more of symbol duration, subcarrier spacing, Fourier transform size, sampling rate or down-clocking
    • 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information

Landscapes

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

Abstract

Una red de comunicaciones comprende una estacion de base (28) y una terminal inalámbrica (30) que se comunica con una trama (F) de informacion por una interfaz aérea (32). La trama (F) está preparada o procesada para adaptarse a símbolos de duracion acortada. La preparacion o procesamiento de la trama ocurre de una manera por la cual: (1) por lo menos algunos de los símbolos OFDM de la trama tienen una duracion de símbolo Tbase de acuerdo con una frecuencia básica 1/Tbase de subportadoras empleadas para la trama; y (2) por lo menos un símbolo OFDM de duracion acortada de la trama tiene una duracion de símbolo Tbase/N, donde N es un entero mayor que uno y donde un subconjunto de subportadoras se utilizan para la seleccion del OFDM, siendo el subconjunto de subportadoras las frecuencias que son enteros multiplos de una Nava armonica de la frecuencia básica 1/Tbase, En una realizacion ejemplificativa, el símbolo de duracion acortada se inserta en una porcion de la trama correspondiente a un espacio de transicion para por lo menos una version de la trama.
ARP090100150A 2008-01-16 2009-01-16 Simbolos de multiplexacion por division en frecuencia ortogonal ( ofdm) de duracion acortada AR070197A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2149908P 2008-01-16 2008-01-16

Publications (1)

Publication Number Publication Date
AR070197A1 true AR070197A1 (es) 2010-03-17

Family

ID=40876420

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP090100150A AR070197A1 (es) 2008-01-16 2009-01-16 Simbolos de multiplexacion por division en frecuencia ortogonal ( ofdm) de duracion acortada

Country Status (7)

Country Link
US (1) US20090185476A1 (es)
EP (1) EP2229758A4 (es)
JP (1) JP2011510569A (es)
AR (1) AR070197A1 (es)
BR (1) BRPI0907189A8 (es)
IL (1) IL206327A (es)
WO (1) WO2009091881A1 (es)

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US20090161616A1 (en) * 2007-11-07 2009-06-25 Telefonaktiebolaget Lm Ericsson (Publ) Ranging procedure identification of enhanced wireless terminal
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Also Published As

Publication number Publication date
WO2009091881A1 (en) 2009-07-23
EP2229758A4 (en) 2013-03-27
JP2011510569A (ja) 2011-03-31
EP2229758A1 (en) 2010-09-22
IL206327A0 (en) 2010-12-30
BRPI0907189A2 (pt) 2015-07-14
IL206327A (en) 2013-10-31
US20090185476A1 (en) 2009-07-23
BRPI0907189A8 (pt) 2018-10-30

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