Modulation and coding scheme level adjustment method and system

A technology of modulation and coding schemes and adjustment methods, which is applied in the field of level adjustment systems, and can solve problems such as inaccurate level determination of modulation and coding schemes

Active Publication Date: 2019-07-23
POTEVIO INFORMATION TECH CO LTD
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  • Claims
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Problems solved by technology

[0008] In view of the above defects in the prior art, the present invention provides a modulation and coding scheme level adjustment method and system, which can solve the problem of inaccurate determination of the modulation and coding scheme level caused by the deviation between the detected channel quality and the real channel quality

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  • Modulation and coding scheme level adjustment method and system
  • Modulation and coding scheme level adjustment method and system
  • Modulation and coding scheme level adjustment method and system

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Embodiment Construction

[0074] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, but not to be construed as a limitation of the present invention.

[0075] It will be understood by those skilled in the art that the singular forms "a", "an", "the" and "the" as used herein can include the plural forms as well, unless expressly stated otherwise. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of stated features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integer...

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Abstract

The invention relates to a modulation coding scheme level adjustment method and system. The method comprises a process of adjusting a modulation coding scheme level between the kth time and a (k+1)th time obtainment of the channel quality detection information of a same transmission channel by the base station. The process comprises the steps of (S1) determining the value of an allowable up-regulation sign, and (S2) dividing a first preset number of adjustment windows between the kth time and a (k+1)th time obtainment of the channel quality detection information, and carrying out the following execution in each adjustment window: calculating the error rate of the transmission channel in the adjustment window, and adjusting the modulation coding scheme level on the basis of the modulation coding scheme level initial value of the adjustment window according to the error rate and the allowable up-regulation sign. According to the method and the system, a problem of inaccurate determination of the modulation coding scheme level caused by the deviation between detected channel quality and real channel quality is improved. The allowable up-regulation sign is used to control an up-regulation process, thus the modulation coding scheme level is maintained to be stable as possible, and fluctuation is avoided.

Description

technical field [0001] The present invention relates to the technical field of adaptive modulation and coding, in particular to a modulation and coding scheme level adjustment method and a modulation and coding scheme level adjustment system. Background technique [0002] Adaptive Modulation and Coding (AMC for short) technology is a link adaptation technology based on the physical layer. The basic principle of the AMC technology is to select an appropriate modulation method and coding method according to the change of the wireless channel under the condition of constant transmission power. For example, when the channel condition is good, choose a high-order modulation method and a high-rate channel coding method to achieve a higher peak rate; when the channel condition is poor, choose a low-order modulation method and a low-rate channel coding method way to ensure communication quality. Therefore, the purpose of adjusting the modulation mode and the coding mode is to make...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00
Inventor 朱雅琼
Owner POTEVIO INFORMATION TECH CO LTD
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