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A data modulation method and device for an edge subband

A data modulation and edge sub-technology, applied in the multi-carrier field, can solve the problems of large out-of-band leakage and reduce spectrum utilization efficiency, and achieve the effect of reducing transmission power and omitting frequency band guard interval

Active Publication Date: 2022-05-03
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the out-of-band leakage of the LTE system is relatively large, so there is often a frequency at both ends of the transmission frequency band as a guard interval to reduce the impact of out-of-band leakage on adjacent frequency bands
In this way, it will inevitably cause a waste of transmission frequency band to a certain extent and reduce the efficiency of spectrum utilization.

Method used

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  • A data modulation method and device for an edge subband
  • A data modulation method and device for an edge subband
  • A data modulation method and device for an edge subband

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Embodiment Construction

[0038] In order to understand the characteristics and technical contents of the embodiments of the present invention in more detail, the implementation of the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and description, and are not intended to limit the embodiments of the present invention.

[0039] The out-of-band leakage of the LTE system is relatively large, so a section of frequency is often vacated at both ends of the transmission frequency band as a guard interval to reduce the impact of out-of-band leakage on adjacent frequency bands. In this way, the transmission frequency band will inevitably be wasted to a certain extent, and the spectrum utilization efficiency will be reduced. To this end, the embodiments of the present invention propose a data modulation method and device for edge subbands of a multi-carrier system, so that the multi-carrier system ...

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Abstract

The present invention discloses a data modulation method and device for an edge sub-band. The method includes: selecting a sub-carrier on the edge sub-band at both ends of a transmission frequency band, wherein the position of the sub-carrier represents modulation information; according to the selected The position of the subcarrier modulates the data.

Description

technical field [0001] The present invention relates to the field of multi-carrier technology, in particular to a data modulation method and device for edge subbands of a multi-carrier system. Background technique [0002] Long Term Evolution (LTE, Long Term Evolution) is a long-term evolution of the Universal Mobile Telecommunications System (UMTS, Universal Mobile Telecommunications System) technical standard formulated by the Third Generation Partnership Project (3GPP, The3rd Generation Partnership Project). The LTE system introduces Orthogonal Frequency Division Multiplexing (OFDM, Orthogonal Frequency Division Multiplexing) technology, and the time-frequency resources composed of subcarriers and OFDM symbols constitute the wireless physical time-frequency resources of the LTE system. However, the out-of-band leakage of the LTE system is relatively large, so a section of frequency is often vacated at both ends of the transmission frequency band as a guard interval to red...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/26
CPCH04L27/2627H04L27/2649H04L27/26
Inventor 边峦剑辛雨
Owner ZTE CORP