Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Framing modulation method of anti-interference mobile multimedia broadcasting signals

A technology for mobile multimedia and broadcast signals, applied in the field of wireless communication, to achieve the effect of small amount of information and easy processing and recovery

Inactive Publication Date: 2014-05-07
NINGBO UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] Aiming at the problem of high data rate controllable multi-service digital TV anti-interference mobile multimedia broadcasting, the present invention proposes an anti-interference mobile multimedia broadcasting signal framing modulation method

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Framing modulation method of anti-interference mobile multimedia broadcasting signals
  • Framing modulation method of anti-interference mobile multimedia broadcasting signals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0033] According to an embodiment of a certain transmitter of the anti-jamming mobile multimedia broadcasting signal framing modulation method proposed by the present invention, as figure 1 shown, follow these steps:

[0034] 1) The certain anti-interference mobile multimedia broadcasting signal transmitter forms FFT bit interleaving code in the frequency domain after undergoing multi-rate punctured convolution coding, bit interleaving, symbol modulation and symbol rotation on its input data bit stream Modulation data block, FFT bit interleaving coding modulation data block length is K; the coding rate of multi-code rate punctured convolution coding for input data is 1 / 4, 1 / 2, 5 / 8, 3 / 4 and 7 / One of 8, the bit interleaving adopts the random interleaving method, the symbol modulation is one of QPSK, 16QAM, 64QAM and 256QAM, the symbol constell...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a framing modulation method of anti-interference mobile multimedia broadcasting signals. The framing modulation method is a framing modulation scheme with time domains and frequency domains being mixed. By means of the bit-interleaved coded modulation, the training sequence optimization design, the signal generating models and a signal selection method of the framing modulation method of the anti-interference mobile multimedia broadcasting signals, original signals of OFDM signals can be easily obtained at a receiver end through processing and restoring,, and the framing modulation method has the advantages of being low in PAPR, short in synchronization time, channel fading resistant, capable of controlling multiple services, and the like.

Description

technical field [0001] The invention belongs to the field of wireless communication, and more specifically relates to an anti-interference mobile multimedia broadcasting signal framing modulation method. Background technique [0002] At present, television broadcasting has gradually developed from analog to digital. Digital TV broadcasting transmission system, as an important part of digital TV broadcasting, the development of its related technologies is closely related to people's quality of life, and therefore has received extensive attention from people. The technology related to digital TV broadcasting and related industries are industries with rapid development and good market prospects in the field of communication and computer. In terms of technologies related to digital TV broadcasting, countries are currently focusing on how to provide low-cost, reliable and high-speed mobile solutions for digital TV broadcasting in a complex wave propagation environment. The fram...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com