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Modulation 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: 2017-05-24
POTEVIO INFORMATION TECH
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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 coding scheme level adjustment method and system
  • Modulation coding scheme level adjustment method and system
  • Modulation coding scheme level adjustment method and system

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Embodiment Construction

[0074] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0075] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and / or groups thereof.

[0076] The pres...

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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 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 physical layer-based link adaptive technology. The basic principle of AMC technology is to select an appropriate modulation method and coding method according to the change of the wireless channel when the transmission power is constant. 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 the quality of communication. Therefore, the purpose of adjusting the modulation mode and the coding mode is to make the transmission data ra...

Claims

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Application Information

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IPC IPC(8): H04L1/00
Inventor 朱雅琼
Owner POTEVIO INFORMATION TECH
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