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A soft bit non-uniform quantization method, device, computer program and storage medium

A quantization method and non-uniform technology, applied in the field of communication, can solve the problems such as the inconvenient realization of 5-bit quantization

Inactive Publication Date: 2018-10-09
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But in the actual system, 5-bit quantization is very inconvenient to implement

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  • A soft bit non-uniform quantization method, device, computer program and storage medium
  • A soft bit non-uniform quantization method, device, computer program and storage medium
  • A soft bit non-uniform quantization method, device, computer program and storage medium

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Embodiment Construction

[0051] Such as image 3 As shown, the soft bit non-uniform quantization method according to the embodiment of the present disclosure includes the following steps:

[0052] Step 11, determine a threshold value.

[0053] Step 12, obtain a quantization step size according to the threshold value.

[0054]Step 13, obtaining the first data after QAM (such as 64QAM) demodulation and before Turbo decoding in the wireless communication system.

[0055] Step 14: Perform soft-bit non-uniform quantization on the first data according to the threshold value and the step size, thereby obtaining a quantization result.

[0056] In this embodiment, by setting a threshold value, the data after QAM (such as 64QAM) demodulation and before Turbo decoding are quantized, so that the data after QAM demodulation and before Turbo decoding can reach the maximum Euclidean distance value, Thus greatly improving performance.

[0057] Such as Figure 4 As shown, in another embodiment of the present disc...

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Abstract

The embodiments of the present disclosure disclose a soft bit un-uniform quantization method, apparatus, computer program and storage medium. The soft bit un-uniform quantization method comprises: determining a threshold value; obtaining a quantization step according to the threshold value; obtaining a first data after a QAM demodulating and before a Turbo decoding in a wireless communication system; and performing a soft bit un-uniform quantization on the first data to obtain a quantization result according to the threshold value and the step. According to the present disclosure, the data after the QAM demodulating and before the Turbo decoding may obtain a distinguished Euclidean distance value and thus the performance can be improved greatly.

Description

technical field [0001] The present disclosure relates to the technical field of communication, and in particular to a soft bit non-uniform quantization method, device, computer program and storage medium. Background technique [0002] In existing wireless communication systems, such as 3G / 4G wireless communication systems, in order to achieve high peak rates, high-order modulation before Turbo decoding is a typical configuration in 3G / 4G wireless systems, such as High Speed ​​Packet Access+ (HSPA+) system. [0003] In many communication systems, such as Time Division Synchronous Code Division Multiple Access (TD-SCDMA), Wideband CDMA (WCDMA) and Long Term Evolution (LTE), 64 Quadrature Amplitude Modulation (QAM) high-order modulation schemes are used. 64QAM has a high transmission rate without increasing the bandwidth in the wireless system. However, higher order modulation can only be achieved in high signal-to-noise ratio (SNR) environments. [0004] It should be noted ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/20
CPCH04L27/38H04L1/0052H04L1/0057H04L25/067
Inventor 李超李燮尹昆
Owner TELEFON AB LM ERICSSON (PUBL)