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Pilot position selection method and device based on packet data distortion minimization

A technology of pilot position and packet data, applied in baseband system components, transmitter/receiver shaping network, etc., can solve complex calculation, high bit error rate, unsuitable uplink of actual wireless communication system, etc. problem, to achieve the effect of low calculation load, low bit error rate results, and meet the requirements of real-time processing

Active Publication Date: 2018-04-13
广州市成格信息技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are still many unsatisfactory aspects in the existing pilot position selection technology, mainly because of high bit error rate and complicated calculation, which is not suitable for the uplink of the actual wireless communication system

Method used

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  • Pilot position selection method and device based on packet data distortion minimization
  • Pilot position selection method and device based on packet data distortion minimization
  • Pilot position selection method and device based on packet data distortion minimization

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] See figure 1 , figure 1 is a schematic diagram of pilot insertion in frequency domain pilot multiplexing technology, figure 1 An intuitive method of inserting data blocks at equal intervals of pilots is given. It can be clearly seen that the key to realize the insertion of equal intervals of pilots is how to determine the starting position of pilot insertion d 0 .

[0079] See image 3 , image 3 It is a flow chart of the pilot position selection method based on packet data distortion minimization in the first embodiment, and the flow chart shows in detail how to determine the starting position d of pilot insertion 0 The process steps of the method, the pilot position selection method based on packet data distortion minimization specifically includes the following steps:

[0080] S0 initial parameter setting steps: set the number N of symbols contained in the time domain data symbol block of each transmitting end, such as N=64,128,256,512,1024,...; set the modulati...

Embodiment 2

[0107] See Figure 6 , Figure 6 is a structural composition diagram of the pilot position selection device based on packet data distortion minimization in the second embodiment, Figure 6 The composition of an intuitive pilot position selection device based on packet data distortion minimization is given, and it can be clearly seen that the device includes the following modules:

[0108] 1. Initial parameter setting module

[0109] This module is used to set the number N of symbols contained in each data block, where N=64, 128, 256, 512, 1024, ...; set the modulation mode of the time-domain data symbols, and set the number N of pilots p .

[0110] 2. Time domain data extraction module

[0111] This module is used to extract the time-domain data symbols at the sending end at equal intervals, starting from N p start to extract from different starting positions, then you can get N p different time-domain data packets, expressed as follows:

[0112]

[0113] The meaning...

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Abstract

The invention discloses a pilot location selection method based on minimum packet data distortion, comprising the steps as follows: S1, extracting time domain data symbols of a sending end at equal intervals, and carrying out extraction from Np different starting positions to obtain Np different time domain data packets; S2, carrying out Fourier transform on the packets to obtain corresponding Np different frequency domain data packets; and S3, solving a minimization and maximization function to obtain the initial position d0 for pilot insertion. The key of the pilot location selection method lies in that the time domain data is extracted to obtain multiple packets, Fourier transform is carried out on the multiple packets, and finally, the optimal pilot location selection choice is obtained by using the minimization and maximization function. The pilot location selection method is high in computation efficiency and low in implementation complexity, can be used to carry out parallel computation and obtain a result with extremely low error rate, and is suitable for a transmitter as a single-carrier frequency domain equalization system to realize low-complexity and high-performance pilot location selection.

Description

technical field [0001] The invention relates to the technical field of digital wireless communication, in particular to a pilot position selection method based on packet data distortion minimization applied to a sending end under a single-carrier frequency domain equalization system. Background technique [0002] With society's increasing demand for radio spectrum resources, radio spectrum has become a scarce resource. How to maximize the use of radio spectrum resources has always been a key issue in the field of communication that needs to be solved urgently. The effectiveness and reliability of the communication system are two quality index systems that complement each other, but they are contradictory under certain conditions. In a wireless communication system, measuring the effectiveness of the communication system is based on the data transmission efficiency of the sending end, while measuring the reliability of the communication system transmission is mainly based on...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L25/02H04L25/03
Inventor 温淼文郑倍雄刘翔陈芳炯季飞潘伟锵
Owner 广州市成格信息技术有限公司