一种OFDM通信方法、装置及其系统
By employing a dual-pilot OFDM communication method, which uses dual-pilot transmission frames and flexible demodulation modes, the problems of low spectral efficiency and high overhead in the Sub-GHz band and MIMO applications are solved. This achieves efficient spectrum utilization and multi-stream transmission, adapting to different channel conditions and communication needs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- XIAMEN ZIFI INFORMATION TECH CO LTD
- Filing Date
- 2026-03-13
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies in Sub-GHz band wireless communication suffer from problems such as spectrum fragmentation, narrow available bandwidth, low transmission rate, low spectrum efficiency, and huge overhead of MIMO applications, making it difficult to meet the requirements of high-speed data acquisition and real-time control.
Design an OFDM communication method that adopts a dual-pilot transmission frame structure, including synchronization pilot symbols and reference pilot symbols, supports two demodulation modes: differential demodulation and quadrature amplitude modulation, and achieves non-continuous available spectrum mapping by skipping disabled subcarriers, adapting to different channel conditions and communication requirements.
It achieves high spectral efficiency, low implementation complexity, and strong spectral adaptability, supports MIMO multi-stream transmission, improves spectral utilization and system adaptability, and reduces R&D and deployment costs.
Smart Images
Figure CN121841926B_ABST