Multi-bµrer transmisjonssystem samt mottaker, transceiver og fremgangsmÕte for samme

I et toveis multibærer transmisjonssystera, så som et DMT-system, hvori der kan være dynamiske forandringer i transmisjonsparametrene, må det tilveiebringes midler for å opprettholde synkroniseringen mellom sender og mottaker idet transmisjonsparametrene forandres. Det første trinn i en slik prosess...

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Hauptverfasser: TONVALL, HARRY, WEN, YE, ISAKSSON, ANDERS, NORDSTR÷M, TOMAS, IHMAN, HANS, OLSSON, LENNART, JOHANSSON, MAGNUS, BAHLENBERG, GUNNAR, ISAKSSON, LARS-+KE, BENGTSSON, DANIEL, ISAKSSON, MIKAEL, STEFANSSON, TOMAS, LJUNGGREN, LIS-MARIE, IKVIST, G÷RAN, HOKANSSON, SIWERT
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creator TONVALL, HARRY
WEN, YE
ISAKSSON, ANDERS
NORDSTR÷M, TOMAS
IHMAN, HANS
OLSSON, LENNART
JOHANSSON, MAGNUS
BAHLENBERG, GUNNAR
ISAKSSON, LARS-+KE
BENGTSSON, DANIEL
ISAKSSON, MIKAEL
STEFANSSON, TOMAS
LJUNGGREN, LIS-MARIE
IKVIST, G÷RAN
HOKANSSON, SIWERT
description I et toveis multibærer transmisjonssystera, så som et DMT-system, hvori der kan være dynamiske forandringer i transmisjonsparametrene, må det tilveiebringes midler for å opprettholde synkroniseringen mellom sender og mottaker idet transmisjonsparametrene forandres. Det første trinn i en slik prosess krever at forandringer i parametrene over-føres fra en tranceiver til den andre, som er involvert i selve kommunikasjonsprosessen, over en langsom trans-mis jonskanal . Deretter justeres synkroniseringen av tranceiverne samtidig, dvs fra et forutbestemt DMT-symbol. Slike justeringer i tidssynkroniseringen må oppnås med et minimum av overhead. A two-way multi-carrier transmission system, such as a DMT system. If there are dynamic changes in the transmission parameters, synchronization must be maintained between the transmitter and the receiver when the transmission parameters changed. The first stage of such a process requires that the changes of parameter be notified by one transceiver to others involved in an active communication process over a slow transmission channel such as the control channel. Subsequently, the synchronization transceiver is adjusted simultaneously, i.e., from a predetermined DMT symbol. Such adjustments in time synchronization must be achieved with a minimum of overhead.
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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
MULTIPLEX COMMUNICATION
TELEPHONIC COMMUNICATION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
title Multi-bµrer transmisjonssystem samt mottaker, transceiver og fremgangsmÕte for samme
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