Approximate calculation method of mixed function, terminal equipment and storage medium

A technology of approximate calculation and mixed function, applied in the field of communication, can solve the problem of low precision, and achieve the effect of small calculation delay, high calculation accuracy and low complexity

Pending Publication Date: 2021-12-24
ZEKU TECH (BEIJING) CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Either the calculation method is simple, but the accuracy is not high, and it is suitable for scenarios that do not require high accuracy

Method used

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  • Approximate calculation method of mixed function, terminal equipment and storage medium
  • Approximate calculation method of mixed function, terminal equipment and storage medium
  • Approximate calculation method of mixed function, terminal equipment and storage medium

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Embodiment Construction

[0024] The embodiment of the present application provides an approximate calculation method of a mixing function, a terminal device, and a storage medium, which are used for fast approximate calculation of a mixing function based on a Taylor series expansion method and a piecewise linear fitting method. There is no iterative process, and the calculation is delayed. The time is small, the calculation accuracy is high, and the complexity is low.

[0025] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be described below in conjunction with the drawings in the embodiment of the application. Obviously, the described embodiment is only a part of the application Examples, but not all examples. Based on the embodiments in this application, all should belong to the protection scope of this application.

[0026] In wireless communication systems, uplink power cont...

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Abstract

The embodiment of the invention discloses an approximate calculation method of a mixed function, terminal equipment and a storage medium, which are used for quickly realizing approximate calculation of the mixed function based on a Taylor series expansion method and a piecewise linear fitting method, do not have an iterative process, and are relatively small in calculation delay, relatively high in precision and relatively low in complexity. The method comprises the steps of obtaining an independent variable x corresponding to a first function, wherein the first function is a mixed function comprising an exponential function and a logarithmic function; when the independent variable x is smaller than or equal to a first threshold value, using a Taylor series expansion method for expanding the first function,using a piecewise linear fitting method for a logarithmic function in the expanded function, acquiring an approximate calculation result of the first function by calculation, wherein the independent variable x is larger than 0.

Description

technical field [0001] The present application relates to the communication field, and in particular to an approximate calculation method of a mixing function, a terminal device and a storage medium. Background technique [0002] In order to simplify the computational complexity and reduce storage resources in traditional methods, many optimization algorithms for exponential and logarithmic calculations have been proposed. For example, in one implementation mode, the mantissa part of the binary form of the independent variable is squared and compared with 2, and the value of each bit of the logarithm result to be obtained is iteratively calculated according to the method of bit-by-bit recursion according to the characteristics of the data. However, iteratively calculates the values ​​of each bit of the logarithmic result to be obtained, and the calculation delay is relatively large. As the precision of the result increases, the computation latency will also increase. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/18
CPCG06F17/18
Inventor 邓周
Owner ZEKU TECH (BEIJING) CORP LTD
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