Method and transmission device for transmission of data in a multi-carrier system
AssigneeGigaset Communications GmbH
InventorsEdgar Bolinth, Gesa Lorenz
Life of this patent
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Abstract
The present invention relates to a method for the transmission of data in a multi-carrier system, provided with a frequency band, the carrier frequencies of which are distributed in a sub-carrier band, dividing the frequency band. On the transmission side, dependent on current transmission properties, an adaptive pre-emphasis of the transmission signal is carried out for a part of the carrier frequencies in the sub-carrier band. The transmitter thus has the capacity to determine current transmission properties as well as adaptive pre-emphasis of a part of the carrier frequencies in the sub-carrier band of the transmission signal.
Claims20
A method for transmitting data in a multi-carrier system to which a frequency band is assigned, for which carrier frequencies are subdivided into at least one sub-carrier band dividing the frequency band, the method comprising:
- monitoring a transmission characteristic;
- performing, on a send side and depending on the transmission characteristic, an adaptive pre-emphasis of a send signal for only a part of the carrier frequencies of the at least one sub-carrier band thereby reducing inter channel interference caused by at least two subscribers, wherein the carrier frequencies which are subject to the adaptive pre-emphasis are only frequencies located at an edge of the at least one sub-carrier band;
- and
- providing that the adaptive pre-emphasis relates only to the part of the carrier frequencies of the at least one sub-carrier band.
A transmit device for transmitting data in a multi-carrier system to which a frequency band is assigned, of which carrier frequencies are subdivided into at least one sub-carrier band subdividing the frequency band, comprising:
- parts for monitoring a transmission characteristic;
- and
- parts for pre-emphasis of only a certain part of the carrier frequencies of the at least one sub-carrier frequency of a send signal, which is adaptively performed depending on the transmission characteristic such that the pre-emphasis relates only to the certain part of the carrier frequencies of the at least one sub-carrier band thereby reducing inter channel interference caused by at least two subscribers, wherein the carrier frequencies which are subject to the adaptive pre-emphasis are only frequencies located at an edge of the at least one sub-carrier band.
Dependencies are inferred from the claim text.