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Biblos-e Archivo
Master thesis . 2016
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Coexistencia entre TDT y LTE

Authors: Gil de Santivañes de Benito, Bárbara;

Coexistencia entre TDT y LTE

Abstract

La llegada de las tecnologías digitales y de nuevos sistemas de compresión de información ha favorecido, a la hora de transmitir televisión, a disminuir el número de frecuencias necesarias para ello, permitiendo una mejor gestión del espectro radioeléctrico y posibilitando la obtención de un dividendo en forma de nuevas frecuencias disponibles, conocido como Dividendo Digital (DD). Ya que en el momento actual la prestación de servicios de banda ancha móvil es uno de los fines más demandados, el DD se destinó a ello. Debido a la determinación por parte de Europa de que los nuevos servicios de banda ancha inalámbrica ocuparían la banda de 800 MHz, en España hubo que activar un plan para la liberación del Dividendo Digital que tenía que ser realizado en el plazo establecido, minimizando las molestias a los ciudadanos y reduciendo el impacto en las televisiones. Esto fue necesario pues la banda estaba ocupada por algunos canales de la Televisión Digital Terrestre (TDT). Tras la reorganización del espectro, la banda de frecuencia más alta destinada a la TDT termina en 790 MHz y la banda de frecuencia más baja de LTE empieza en 791 MHz, existiendo solamente un espacio de 1 MHz sin utilización. Por lo tanto, en este Trabajo de Fin de Máster se propone el estudio de la coexistencia entre estos dos sistemas en la banda de 800 MHz para comprobar si es posible la convivencia entre ambos, así como determinar si la banda de guarda asignada es suficiente o debería ser mayor. En otras partes del mundo, la red inalámbrica se encuentra asignada en la banda de 700 MHz. Además, algunos países de Europa tienen intenciones de establecer en esta misma los servicios móviles, dando lugar a un segundo Dividendo Digital (DD2) sobre 2017. Por tanto, también se realizará un estudio de la coexistencia entre TDT y LTE en esta banda. En particular, se simularán y se analizarán dos escenarios. El primero consistirá en el efecto que produce la señal de un transmisor TDT sobre la señal LTE y el segundo, el efecto de la señal de un transmisor LTE que interfiere sobre la señal TDT.

The arrival of digital technologies and new systems of data compression has permitted, when transmitting television, to decrease the number of frequencies required for that purpose, allowing a better management of the radio-electric spectrum and obtaining a dividend in a way of new available frequencies, known as Digital Dividend (DD). At present provision of mobile broadband is one of the most popular purposes, therefore the DD was allocated to it. Due to the order from Europe that the new mobile broadband services need to occupy the 800 MHz band, Spain had to activate a plan to release the Digital Dividend. It needed to be done in a given time, minimizing discomfort of citizens and decreasing the impact on televisions. That was necessary because that band was occupied by some Digital Terrestrial Television channels. After the relocation of the spectrum, the higher frequency band intended to DTT finishes in 790 MHz and the lowest frequency band to LTE starts in 791 MHz, so it exists only 1 MHz between them without usage. Because of that, this project proposes the study of coexistence between these two systems on this 800 MHz band, to check if it is possible to have it and to determine if the guard band assigned is enough or should be greater. Elsewhere in the world, the wireless network is assigned in the 700 MHz band. Also, some European countries intend to establish mobile services in that band, creating a second Digital Dividend (DD2) around 2017. That is the reason why it will be analyzed the coexistence between DTT and LTE on this band, too. In particular, it will be simulated and analyzed two scenarios. The first one will consist on the effect that a signal from a DTT transmitter produces on a LTE signal and the second one, the effect that a signal from a LTE transmitter causes on a DTT signal.

Máster Universitario en Ingeniería de Telecomunicación

Country
Spain
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Keywords

Telecomunicaciones

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    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green