Dual-Beacon Wireless Synchronization with Forced Marking
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Solution Overview
Problem
In next-generation wireless networks, advanced and simple wireless devices coexist in the same spectrum, leading to interference due to the inability of simple devices to receive and decode beacons from advanced devices, resulting in synchronization issues.
Innovation Solution
A method for synchronizing wireless devices by allowing Type-A devices to transmit and receive Type-A beacons and Type-B devices to transmit and receive Type-B beacons, with Type-A devices synchronizing to the slowest clock and marking themselves as forced synchronization devices when necessary, and switching channels if interference occurs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If advanced wireless devices transmit beacons using a complicated but robust scheme, then communication reliability is improved, but simple wireless devices cannot receive or decode the beacons due to reduced capability
Solution Approach 1:
The patent segments the beacon transmission into two distinct formats: Type-A beacons with complicated but robust schemes for advanced devices, and Type-B beacons with simpler schemes for simple devices. This segmentation allows each device type to receive and process beacons appropriate to its capabilities, resolving the contradiction between reliability and adaptability.
Solution Approach 2:
The patent introduces Type-B beacons as an intermediary mechanism that simple wireless devices can decode. These Type-B beacons carry essential synchronization information in a simplified format, enabling simple devices to participate in the network without needing to decode the more complex Type-A beacons used by advanced devices.
2Productivity
If simple wireless devices and advanced wireless devices operate in the same frequency band, then spectrum utilization is improved, but beacon collisions and interference occur
Solution Approach 1:
The patent implements periodic beacon transmission with distinct periods for Type-A and Type-B beacons. By scheduling Type-B beacons at specific intervals that are synchronized with Type-A beacon periods, the system allows simple and advanced devices to operate in the same frequency band without continuous interference, as their beacon transmissions are temporally coordinated.
Solution Approach 2:
The patent introduces dynamic channel switching capabilities where devices can switch between different channels or frequency bands based on detected interference levels and beacon collision patterns. This dynamic adaptation allows the system to maintain high spectrum utilization while avoiding harmful interference by moving to less congested frequencies when necessary.
3Measurement precision
If Type-A devices synchronize to the slowest clock among Type-B devices, then synchronization accuracy is improved, but transmission delays increase
Solution Approach 1:
The patent implements preliminary synchronization actions where Type-A devices identify and lock onto the slowest Type-B device clock before initiating full synchronization. By performing this identification and preparation phase in advance, the system ensures accurate synchronization to the reference clock while minimizing the actual time loss during the synchronization process itself.
Data Source
AI summary
A wireless device (320) receives at least one beacon (325) of a first type (“Type-A beacon”), and synchronizes itself based on the timing of the Type-A beacon(s). Whenever the wireless device (320) synchronizes itself to the timing of a second wireless device (310) that is unable to receive Type-A beacons, then the wireless device (320) marks itself as a forced synchronization device and transmits Type-A beacons (325) that indicate that the first wireless device (320) is operating as a forced synchronization device. Whenever the wireless device (320) is marked as a forced synchronization device and receives a Type-A beacon (325) from a third alien wireless device (320) that is also marked as a forced synchronization device, but is synchronized to a fourth wireless devices (310) that is unable to receive Type-A beacons, then at least one of the first and third wireless devices (320) switches to a new channel.