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Modulation and demodulation method and device and computer readable storage medium

A technology of modulation and demodulation and channel quality indication, which is applied in the field of modulation and demodulation devices, modulation and demodulation methods, and computer-readable storage media, and can solve problems such as inability to adapt to modulation and demodulation methods, system communication performance degradation, and inconsistency

Pending Publication Date: 2020-12-18
CHINA TELECOM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The inventors of the present disclosure have discovered the following problems in the above-mentioned related technologies: the CQI measured by the terminal may not match the current situation, resulting in the selected modulation and demodulation method not being able to adapt to the current situation, resulting in a decrease in the communication performance of the system

Method used

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  • Modulation and demodulation method and device and computer readable storage medium
  • Modulation and demodulation method and device and computer readable storage medium
  • Modulation and demodulation method and device and computer readable storage medium

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Embodiment Construction

[0039] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.

[0040] At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0041] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way intended as any limitation of the disclosure, its application or uses.

[0042] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of t...

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Abstract

The invention relates to a modulation and demodulation method and device and a computer readable storage medium, and relates to the technical field of communication. The method comprises the followingsteps: receiving a CQI fed back by a terminal; determining the current MCS according to the CQI difference between the fed back CQI and the CQI of the current channel of the terminal; and performingmodulation and demodulation according to the current MCS. According to the method, the communication performance of the system can be improved.

Description

technical field [0001] The present disclosure relates to the technical field of communications, and in particular to a modulation and demodulation method, a modulation and demodulation device, and a computer-readable storage medium. Background technique [0002] At present, the 5G network generally adopts TDD (Time Division Duplexing) technology in the high frequency band. However, the TDD coverage of the high frequency band is insufficient (especially the uplink coverage), which leads to the reduction of the coverage of the 5G network. [0003] Therefore, FDD (Frequency Division Duplexing) technology in the low frequency band is generally used as a supplement to 5G uplink, so as to appropriately expand the coverage. However, this may lead to a situation where low-frequency FDD uplink transmission interferes with high-frequency TDD downlink reception. [0004] In related technologies, the system determines the modulation and coding scheme used in downlink according to the ...

Claims

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Application Information

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IPC IPC(8): H04L27/00H04L5/00
CPCH04L27/0014H04L5/0057H04L27/0012
Inventor 林衡华赵晔刘桂清何志强蔡康陆立王庆扬
Owner CHINA TELECOM CORP LTD