ES2522416T3 - Analizador de canales de radio para determinar desplazamientos Doppler a través de múltiples frecuencias de una señal de banda ancha - Google Patents

Analizador de canales de radio para determinar desplazamientos Doppler a través de múltiples frecuencias de una señal de banda ancha Download PDF

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Publication number
ES2522416T3
ES2522416T3 ES10810937.2T ES10810937T ES2522416T3 ES 2522416 T3 ES2522416 T3 ES 2522416T3 ES 10810937 T ES10810937 T ES 10810937T ES 2522416 T3 ES2522416 T3 ES 2522416T3
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Prior art keywords
complex
frequencies
processing
arrival
wireless communication
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ES10810937.2T
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English (en)
Inventor
Paul W. Dent
Leonid Krasny
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Optis Cellular Technology LLC
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Optis Cellular Technology LLC
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/022—Channel estimation of frequency response
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0222—Estimation of channel variability, e.g. coherence bandwidth, coherence time, fading frequency
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • H04L25/023—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols
    • H04L25/0232—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols by interpolation between sounding signals

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

Un procedimiento implementado en un dispositivo inalambrico (10) para analizar sefiales multitrayectoria recibidas a traves de un canal de comunicación inalambrico para caracterizar objetos de dispersion en el canal de comunicacion inalambrico, comprendiendo el procedimiento: recibir (200) un valor de referencia para cada una de una pluralidad de frecuencias dentro de un ancho de banda de serial en una pluralidad de diferentes tiempos de serial; procesar (220) dichos valores de referencia o coeficientes de canal de propagaci6n complejos estimados a partir de los mismos pare determinar uno de entre: un conjunto de desplazamientos Doppler de energia de onda dispersa y un conjunto correspondiente de amplitudes de onda compleja para cada una de dicha pluralidad de frecuencias dentro del ancho de banda de serial, correspondiendo cada desplazamiento Doppler a un angulo de llegada diferente; y un conjunto de retardos de trayectoria y un conjunto correspondiente de amplitudes de onda compleja para cada uno de multiples tiempos de serial dentro de un intervalo de analisis; y procesar (230) dichas amplitudes de onda compleja para determinar: un conjunto de retardos de trayectoria correspondientes a cada angulo de Ilegada o un conjunto de angulos de Ilegada correspondientes a cada retardo de trayectoria determinado; y un coeficiente de dispersión complejo para cada combinacion de retardo de trayectoria y angulo de Ilegada, donde cada coeficiente de dispersión complejo corresponde a un objeto de dispersion respectivo en el canal de comunicación inalambrico, estando el procedimiento caracterizado porque comprende interpolar los valores de referenda o los coeficientes de canal de propagación complejos estimados a partir de los mismos para generar valores interpolados en una serie de tiempos remuestreados dentro del intervalo de analisis, donde los tiempos remuestreados tienen una separación temporal diferente para frecuencias diferentes de dichas multiples frecuencias de modo que el producto de cada separación temporal y la correspondiente frecuencia es sustancialmente constante a traves de las multiples frecuencias; en el que procesar los valores de referencia o coeficientes de canal de propagación complejos estimados a partir de los mismos comprende procesar los valores interpolados.

Description

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Claims (1)

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ES10810937.2T 2009-12-30 2010-12-15 Analizador de canales de radio para determinar desplazamientos Doppler a través de múltiples frecuencias de una señal de banda ancha Active ES2522416T3 (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US650201 2000-08-29
US12/650,201 US8401487B2 (en) 2009-12-30 2009-12-30 Radio channel analyzer to determine doppler shifts across multiple frequencies of a wideband signal
PCT/IB2010/055851 WO2011080644A2 (en) 2009-12-30 2010-12-15 Radio channel analyzer to determine doppler shifts across multiple frequencies of a wideband signal

Publications (1)

Publication Number Publication Date
ES2522416T3 true ES2522416T3 (es) 2014-11-14

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ES10810937.2T Active ES2522416T3 (es) 2009-12-30 2010-12-15 Analizador de canales de radio para determinar desplazamientos Doppler a través de múltiples frecuencias de una señal de banda ancha

Country Status (4)

Country Link
US (1) US8401487B2 (es)
EP (2) EP2790364A1 (es)
ES (1) ES2522416T3 (es)
WO (1) WO2011080644A2 (es)

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Also Published As

Publication number Publication date
WO2011080644A3 (en) 2011-11-10
US20110158361A1 (en) 2011-06-30
US8401487B2 (en) 2013-03-19
EP2520054B1 (en) 2014-06-04
EP2790364A1 (en) 2014-10-15
EP2520054A2 (en) 2012-11-07
WO2011080644A2 (en) 2011-07-07

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