Choice of filter sideband supression according to channel quality in universal filtered multicarrier

A multi-carrier and filter technology, applied in error detection/prevention using signal quality detectors, transmission modification based on link quality, wireless communication, etc., can solve inter-carrier interference, sub-carrier transmission quality drops rapidly, etc. question

Active Publication Date: 2017-08-18
ALCATEL LUCENT SAS
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  • Abstract
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AI Technical Summary

Problems solved by technology

Timing offset can cause intercarrier interference
With conventional OFDM (OFDM = Orthogonal Frequency Division Multiplexing), the subcarrier transmission quality degrades very quickly when the timing offset exceeds the so-called cyclic prefix

Method used

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  • Choice of filter sideband supression according to channel quality in universal filtered multicarrier
  • Choice of filter sideband supression according to channel quality in universal filtered multicarrier
  • Choice of filter sideband supression according to channel quality in universal filtered multicarrier

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Embodiment Construction

[0041] The following description of the present invention is under the enhanced framework of 3GPP LTE. However, the invention is not limited to enhancements of 3GPP LTE, but can in principle be applied to other networks using multi-carrier transmission, such as e.g. 5G as next generation wireless or mobile communication networks with different enhancement standards, e.g. enhanced Global Interconnection Microwave Access (WiMAX) network IEEE802.16, or enhanced wireless local area network (WLAN) IEEE802.11. In the following, instead of the term eNodeB used in LTE, the more general term base station is used.

[0042] Various example embodiments will now be described more fully with reference to the accompanying drawings, some of which are shown in the drawings. In the drawings, the thickness of lines, layers or regions may be exaggerated for clarity.

[0043] Therefore, while the illustrated embodiments are capable of various modifications and alternative forms, the embodiments ...

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Abstract

The invention concerns a method for conditioning a multicarrier transmit signal using a first or a second set of subgroups of time-frequency resource elements, with a subgroup of the first set of subgroups and a subgroup of the second set of subgroups having common time or frequency resources and being neighboured in time or frequency, wherein a first filter module (FILT1) filters the first set of subgroups using a first filter characteristic by a first set of filter coefficients, and a second filter module (FILT2) filters the second set of subgroups using a second filter characteristic by a second set of filter coefficients, and a base station and a transmitter apparatus (TA) therefor.

Description

technical field [0001] The present invention relates to a method of conditioning a multi-carrier transmission signal using a transmitter device, and a transmitter device and a base station operable to perform the method. Background technique [0002] This section introduces aspects that may help facilitate a better understanding of the invention. Accordingly, the statements in this section are to be read in this manner and should not be construed as admissions as to prior art. [0003] In 3GPP LTE (3GPP=Third Generation Partnership Project, LTE=Long Term Evolution), for example, it is proposed to increase the data transmission rate of wireless communication systems by carrier aggregation using so-called segmented frequency bands. Thus, a wireless communication system may be allowed to use a frequency band or a part of a frequency band of another wireless communication system when a base station or base stations of the other wireless communication system are not operating at...

Claims

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Application Information

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IPC IPC(8): H04L27/26H04L1/00H04L25/03
CPCH04L1/0026H04L25/03834H04L27/2627H04L1/20H04L27/26414H04W72/04
Inventor T·维尔德王小杰F·沙伊希
Owner ALCATEL LUCENT SAS
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