An anti-fading mobile multimedia broadcasting signal framing modulation method
A technology for mobile multimedia and broadcast signals, applied in multi-frequency code systems, shaping networks in transmitters/receivers, digital transmission systems, etc., and can solve problems such as mutual interference, system performance deterioration, and signal distortion.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0034] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0035] According to an embodiment of a certain transmitter of the anti-fading mobile multimedia broadcasting signal framing modulation method proposed by the present invention, as figure 1 shown, follow these steps:
[0036] 1) The certain anti-fading mobile multimedia broadcast signal transmitter forms an FFT level in the frequency domain after its input data bit stream undergoes RS coding, convolutional interleaving, LDPC coding, symbol modulation, symbol rotation, and symbol interleaving Concatenated interleaved coded modulation data block, FFT means fast discrete Fourier transform, the length of FFT concatenated interleaved coded modulated data block is K; LDPC coded code rates are 1 / 4, 1 / 2, 5 / 8, 3 / 4 and 7 One of / 8; the symbol modulation is one of QPSK, 16QAM, 64QAM and 256QAM, and the symbol constellation mapping method adopts Gray code...
PUM

Abstract
Description
Claims
Application Information

- Generate Ideas
- Intellectual Property
- Life Sciences
- Materials
- Tech Scout
- Unparalleled Data Quality
- Higher Quality Content
- 60% Fewer Hallucinations
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com