Narrowband-Assisted UWB Frequency Hopping for Reliable Synchronization
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently transitioning between different radio frequency technologies for synchronization, particularly in scenarios involving device-to-device communication and network node communication, which can lead to synchronization failures and inefficiencies.
Innovation Solution
A method and apparatus for wireless communication devices that utilize narrowband assisted ultrawideband frequency hopping, allowing for seamless switching between different frequency resources based on synchronization message failures or timing conditions, enabling efficient synchronization across multiple RF technologies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless devices use fixed frequency resources for synchronization messages, then transmission simplicity is maintained, but synchronization reliability deteriorates due to potential interference and failures
Solution Approach 1:
The patent implements dynamic frequency resource selection for synchronization messages. The transmitting device switches between first and second frequency resources based on whether the synchronization message is transmitted during a first time period (using first frequency resource) or second time period (using second frequency resource). This dynamic adaptation resolves the contradiction by making the frequency resource flexible rather than fixed, improving reliability without requiring complex multi-frequency coordination protocols.
Solution Approach 2:
The patent changes the frequency resource parameter based on time period conditions. By monitoring the current time period and selecting appropriate frequency resources accordingly, the system adapts to varying channel conditions and interference patterns. This parameter change approach improves synchronization reliability while maintaining relatively simple device implementation, as the switching logic is time-based rather than requiring complex signal analysis.
2Productivity
If wireless devices switch frequency resources frequently for synchronization, then synchronization efficiency improves, but transmission stability deteriorates due to potential message failures
Solution Approach 1:
The patent employs periodic action by dividing time into distinct first and second time periods, with each period associated with a specific frequency resource. This periodic structure allows the system to efficiently switch frequency resources at predictable intervals, improving synchronization efficiency while maintaining transmission stability through regular, controlled switching rather than frequent random changes.
Solution Approach 2:
The patent applies preliminary action by pre-configuring first and second frequency resources for different time periods before actual synchronization transmission. This advance preparation allows devices to know which frequency resource to use in advance, reducing the complexity of real-time decision-making and ensuring stable transmission by avoiding last-minute frequency changes that could cause message failures.
3Adaptability or versatility
If wireless devices use a single RF technology for communication, then system simplicity is maintained, but adaptability deteriorates when dealing with diverse wireless environments
Solution Approach 1:
The patent implements universality by enabling the wireless communication device to operate with multiple RF technologies (first RF technology and second RF technology) within a single device architecture. The device can selectively use different RF technologies based on the communication scenario, achieving multi-functionality that improves adaptability to diverse wireless environments while maintaining relatively simple device design through a unified control mechanism.
Solution Approach 2:
The patent uses the processor as an intermediary that coordinates between different RF technologies and frequency resources. The processor determines which RF technology and frequency resource to use based on the current time period and communication requirements, mediating between the multiple RF technologies and the external wireless environment. This intermediary approach allows the device to handle diverse RF technologies without requiring complex direct integration between all components.
Data Source
AI summary
Aspects of the present disclosure generally relate to wireless communication. In some aspects, a first wireless communication device (WCD) may transmit, to a second wireless communication device, a first synchronization message using a first radio frequency (RF) technology and a first frequency resource, the first synchronization message associated with synchronization for a second RF technology. The first WCD may transmit, to the second WCD and after switching to a second frequency resource, a second synchronization message using the first RF technology, the second synchronization message associated with synchronization for the second RF technology, and the switching to the second frequency resource based at least in part on one or more of: transmission of the second synchronization message being associated with ranging or sensing, or failure of the first synchronization message or failure of a reply, from the second WCD, to the first synchronization message. Various other aspects are described.