Wireless Synchronization via Dynamic Channel Selection
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Solution Overview
Problem
Current wireless communication systems face challenges in synchronization due to strong interferences from legacy wireless systems, particularly in heterogeneous networks, which affect the performance of wide band systems by reducing their ability to coexist effectively.
Innovation Solution
A method and apparatus for synchronization that involves obtaining interference information, selecting channels based on this information to minimize interference impact, and transmitting resource allocation details through the selected channels, indicated by a synchronization sequence, to enhance resistance to interference and adapt to changing interference patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional wireless systems use fixed frequency bands for synchronization, then system simplicity is maintained, but interference resistance capability deteriorates under strong legacy signals
Solution Approach 1:
The patent implements dynamic channel selection for synchronization signals by detecting interference levels on different channels and adaptively selecting the optimal channel for synchronization transmission. This allows the system to dynamically adjust to changing interference conditions from legacy systems, improving synchronization reliability without requiring fixed frequency allocations.
Solution Approach 2:
The system changes the frequency channel parameter for synchronization signals based on detected interference conditions. By monitoring interference levels across multiple channels and selecting channels with lower interference for synchronization transmission, the system adapts parameter values to optimize performance in heterogeneous network environments.
2Productivity
If wide band systems share spectra with legacy narrowband systems, then spectral efficiency is improved, but coexistence capability deteriorates due to strong interference
Solution Approach 1:
The patent segments the frequency spectrum into multiple channels and further segments synchronization signal transmission by selecting specific channels based on interference conditions. This segmentation allows the wideband system to operate across the shared spectrum while protecting synchronization functions by transmitting them on selected channels with lower interference from legacy narrowband systems.
Solution Approach 2:
The system introduces channel selection as an intermediary mechanism between the wideband data transmission and legacy narrowband signals. By detecting interference levels and selecting appropriate channels for synchronization, the system mediates the coexistence between wideband and narrowband systems, allowing spectral sharing while maintaining reliability.
3Adaptability or versatility
If synchronization channels are transmitted on fixed positions, then system complexity is reduced, but adaptability to changing interference patterns deteriorates
Solution Approach 1:
The system implements self-service through automatic interference detection and autonomous channel selection for synchronization signals. The base station automatically monitors interference levels on different channels and independently selects the optimal channel for synchronization transmission without requiring complex manual configuration or external intervention, balancing adaptability with manageable complexity.
Data Source
AI summary
Synchronization method and apparatus for a wireless wide band system in an interference environment. The method includes: obtaining interference information of a network; selecting at least one channel based at least in part on the interference information; and transmitting resource information through the at least one channel, wherein the resource information indicates a resource allocation determined at least in part on the interference information; and wherein a position of the at least one channel is indicated by a synchronization sequence. The present invention also provides another method and apparatus for synchronization.