Method for computing quantitative mean logarithmic frame energy in AMR of the third generation mobile communication system

Abstract

The invention relates to a method for realizing the computing of the quantitative mean logarithmic frame energy in adaptive multi-rate of the third generation mobile communication system, which comprises the following steps: carrying out the accumulation processing operation of the total energy of an input speech signal of a current frame to obtain the values of the total energy and a right-shift accumulation variable; carrying out the multiplicative processing operation of the values of the total energy to obtain a multiplicative value and an updated right-shift accumulation variable; and determining the effective bit digit length information of the multiplicative value and computing the value of the quantitative mean logarithmic frame energy according to the effective bit digit length information and the right-shift accumulation variables. The quantitative mean logarithmic frame energy in the AMR of the third generation mobile communication system does not require a corresponding logarithmic computation table to be stored in a memory, is simple and quick in processing process, stable and reliable in computing method, high-efficient and practical, applicable to various mobile communication terminals and wide in application range, and brings convenience to people in work and life, and lays a strong foundation for the development, popularization and application of the third generation mobile communication technology.

Description

technical field [0001] The present invention relates to the technical field of third-generation mobile communication, in particular to the technical field of adaptive multi-rate (AMR, Adaptive Multi-Rate) in the third-generation mobile communication system, and specifically refers to a third-generation mobile communication system AMR calculation quantization Method for averaging log frame energies. Background technique [0002] Modern communication is developing in the direction of broadband, intelligence, personalization and business integration. In order to meet people's increasing demand for communication, it is necessary to seamlessly extend the broadband services supported by the wired network to the wireless network. The future wireless communication network should also support the integration of multiple media services such as voice, data and images. transmission and exchange. [0003] The purpose of the third generation mobile communication system proposed by ITU-T...

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Problems solved by technology

[0006] (2) The service quality of mobile communication is limited by the wireless channel;

Therefore, in the absence of logarithmic calculation capabilities, using this table lookup method will take up a lot of memory and waste a lot of system resources, especially on mobile communication devices, which makes the system resources that are not well-off even tighter. , and lead to a significant reduction in system operating efficiency

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