TVBD Channel Quiet Coordination Across Diverse Radio Access Technologies
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current technologies do not effectively address how unlicensed wireless devices using diverse radio access technologies (RATs) can perform channel quieting when operating in the same frequency bands, which is necessary to avoid interference with licensed devices in VHF and UHF spectrum use.
Innovation Solution
A method where a network node determines the need for unlicensed wireless transmit/receive units (WTRUs) to switch to a different channel before a quiet period based on the radio access technology used, with a processor sending commands to WTRUs to move to a second channel prior to a quiet period, ensuring coordinated channel quieting across multiple RATs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If unlicensed devices perform channel quieting to avoid interference with licensed devices, then interference protection is improved, but coordination complexity across diverse RATs increases
Solution Approach 1:
The patent creates a universal quieting coordination mechanism that works across multiple diverse RATs (Wi-Fi, LTE, 5G, etc.) by defining a common command structure and timing framework. The network node sends standardized quieting commands that different RATs can interpret and execute, making the system multi-functional rather than requiring separate coordination mechanisms for each RAT.
Solution Approach 2:
The network node acts as an intermediary that receives quieting requests, determines appropriate quieting parameters based on RAT-specific characteristics, and translates these into executable commands for unlicensed devices. This mediator approach simplifies the complexity by centralizing the coordination logic rather than requiring direct peer-to-peer coordination between diverse RATs.
2Reliability
If unlicensed devices switch channels before quiet period, then regulatory compliance is improved, but channel switching overhead increases
Solution Approach 1:
The patent implements preliminary channel switching by commanding unlicensed devices to switch to alternative channels before the quiet period begins. The network node calculates the optimal switch time based on RAT-specific characteristics and sends advance notification commands, allowing devices to complete switching operations before quieting is required, thus ensuring compliance without rushing the process.
Solution Approach 2:
The quieting command structure is made dynamic and adaptable to different RAT characteristics. The network node adjusts timing parameters, switch durations, and command sequences based on the specific RAT being used (Wi-Fi, LTE, 5G, etc.), optimizing the channel switching process for each technology rather than using a fixed one-size-fits-all approach.
3Measurement precision
If quiet period start time is determined based on radio characteristic, then coordination accuracy is improved, but processing complexity increases
Solution Approach 1:
The patent applies local quality by determining quiet period start times based on RAT-specific characteristics rather than using a universal timing mechanism. Each RAT (Wi-Fi, LTE, 5G, etc.) has its own timing parameters, frame structures, and synchronization mechanisms that are taken into account when calculating the appropriate quieting start time, ensuring accuracy for each local context.
Solution Approach 2:
The system changes timing parameters dynamically based on the RAT being used. The network node adjusts the quiet period start time, duration, and related parameters according to the specific radio access technology characteristics, such as frame lengths, subframe structures, and synchronization timing, thereby achieving precise coordination without requiring a completely separate mechanism for each RAT.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Disclosed herein are methods and an apparatus for the communication of wireless data using diverse radio access technologies (RATs) in Television Band (TVBD) frequencies. An architecture for communicating wireless data in TVBD frequencies may include one or more network nodes that perform functions related to the coordination of channel quieting across multiple diverse RATs. Channel quieting may be performed across multiple diverse RATs by using temporary channel reassignments, by aggregating wireless transmit/receive units (WTRUs) that use a particular RAT onto the same channel, and/or via other techniques.