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Wireless signal transmission method for digital broadcast single frequency network

A technology of digital broadcasting and wireless signals, applied in the field of wireless communication

Inactive Publication Date: 2014-04-30
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] Aiming at the high data rate controllable multi-service digital TV digital broadcasting single frequency network wireless problem, the present invention proposes a digital broadcasting single frequency network wireless signal transmission method

Method used

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  • Wireless signal transmission method for digital broadcast single frequency network
  • Wireless signal transmission method for digital broadcast single frequency network

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Embodiment Construction

[0033] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0034] A schematic diagram of an embodiment of the signal transmission between the transmitter and the receiver of the digital broadcast single frequency network wireless signal transmission method proposed by the present invention, as shown in FIG. figure 1 shown, follow these steps:

[0035] 1) The central data manager of the single frequency network converts the multimedia data stream into a bit stream through the media data processor, and uses the scrambling code sequence generated by the feedback shift register to perform scrambling processing to form an input data bit stream;

[0036] 2) The network data manager of the single frequency network forms an FFT data block on the frequency domain with the input data bit stream, and the length of the FFT data block is K, and the value of K is an even number;

[0037] 3) The network data manage...

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Abstract

The invention discloses a wireless signal transmission method for a digital broadcast single frequency network, and relates to a mixed framing modulation scheme of the space domain, the time domain and the frequency domain. According to the training sequence optimization design, the signal generating scheme and the signal selecting method of the wireless signal transmission method for the digital broadcast single frequency network, OFDM signals can be processed and recovered at a receiver end easily to obtain original signals of the OFDM signals. The wireless signal transmission method for the digital broadcast single frequency network has the advantages of being low in peak-to-average power ratio, short in synchronization time, resistant to channel fading, multiple in controllable service and the like.

Description

technical field [0001] The invention belongs to the field of wireless communication, and more specifically relates to a digital broadcast single frequency network wireless signal transmission method. Background technique [0002] As an important part of digital TV wireless digital broadcasting, the single frequency network wireless transmission system of digital TV digital broadcasting, the development of its related technologies is closely related to people's quality of life, and therefore has received extensive attention from people. Digital TV wireless digital broadcasting related technologies and related industries are industries with rapid development and good market prospects in the field of communication and computer. In terms of related technologies of digital TV wireless digital broadcasting, countries are currently focusing on how to provide low-cost, reliable and high-speed mobile implementation solutions for digital TV wireless digital broadcasting in a complex w...

Claims

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Application Information

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IPC IPC(8): H04L27/26H04L1/00
Inventor 郑紫微刘哲何晨晖熊欧吴明昊潘洋
Owner NINGBO UNIV
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