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Signal processing method and system

A signal processing and preprocessing technology, applied in transmission systems, multiplexing code generation, electrical components, etc., can solve the problems of poor M-sequence auto-correlation and cross-correlation characteristics, slow network access, and low success rate, to improve Success rate and access speed, good user experience

Active Publication Date: 2021-08-24
JIANGSU YITONG CONTROL SYST CO LTD
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Problems solved by technology

[0009] The purpose of the present invention is to provide a communication system for the disadvantages of low success rate of the system synchronization process and slow network access due to the poor autocorrelation and cross-correlation characteristics of the M sequence when the existing communication system uses the M sequence as the training sequence. Method and system to overcome the above problems

Method used

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  • Signal processing method and system
  • Signal processing method and system
  • Signal processing method and system

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Embodiment Construction

[0068] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. Note that the aspects described below in conjunction with the drawings and specific embodiments are only exemplary, and should not be construed as limiting the protection scope of the present invention.

[0069] In addition to being used in OvTDM and OvFDM systems, the technologies described in this paper can also be widely used in practical mobile communication systems, such as TD-LTE, TD-SCDMA and other systems, and can also be widely used in satellite communication, microwave line-of-sight communication In any wireless communication system such as , scattering communication, atmospheric optical communication, infrared communication and aquatic communication. The terms "network" and "system" are often used interchangeably.

[0070] The continuous development of mobile communications and the emergence of new services have put forward higher a...

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Abstract

The present invention provides a signal processing method, comprising: performing preprocessing on a received signal from a transmitting end, the received signal is a code division overlapping signal from the transmitting end and includes a training sequence and data based on a training code, wherein the training sequence bandwidth is greater than The bandwidth of the data is wide and the power spectral density of the training sequence is lower than the power spectral density of the data, and the performing preprocessing includes using the training sequence based on the training code to perform preprocessing on the received signal. The present invention has high synchronization precision for time and frequency, thus can improve the success rate and access speed of users accessing the network, and make user experience better.

Description

technical field [0001] The present invention generally relates to wireless communication systems, and in particular to a signal processing method and system. Background technique [0002] Wireless communication networks are widely deployed to provide various communication services such as voice, video, packet data, messaging, broadcast, and so on. These wireless networks may be multiple-access networks capable of supporting multiple users by sharing available network resources. Examples of such multiple-access networks include Code Division Multiple Access (CDMA) networks, Time Division Multiple Access (TDMA) networks, Frequency Division Multiple Access (FDMA) networks, Orthogonal FDMA (OFDMA) networks, and Single-Carrier FDMA (SC-FDMA) networks. )network. [0003] With the ever-increasing demand for global mobile communications, the frequency resources of wireless communications are becoming increasingly tight. Therefore, in addition to the above-mentioned traditional wi...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/7087H04J13/12
CPCH04B1/7087H04J13/12
Inventor 不公告发明人
Owner JIANGSU YITONG CONTROL SYST CO LTD
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