Cross-Device Interference Mitigation in Wireless Systems
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wireless communication networks face interference issues due to devices operating on different communication networks in close proximity, leading to degraded performance, especially as demand for mobile broadband access increases and more devices access long-range and short-range networks.
Innovation Solution
Implementing a power control method with two loops for uplink and downlink transmissions, a rate control system with two loops for bursty interference, bandwidth restriction, smart link scheduling, and interference detection to mitigate interference between devices by adjusting transmission power, rate, and scheduling based on interference patterns and channel conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If devices operate on different communication networks in close proximity, then network coverage and accessibility are improved, but interference between devices increases and performance degrades
Solution Approach 1:
The patent implements periodic sensing of channel conditions and periodic adjustment of transmission parameters. The device continuously monitors interference levels and periodically modifies its transmission power or rate based on detected channel state information, creating a rhythmic adaptation pattern that responds to periodic interference patterns from other networks
Solution Approach 2:
The patent dynamically changes transmission parameters including power level and data rate based on detected channel conditions. When interference is detected, the system adjusts these parameters to optimize performance, transforming fixed parameters into adaptive variables that respond to the electromagnetic environment
2Productivity
If more UEs access long-range wireless communication networks, then mobile broadband demand is met, but network congestion and interference increase
Solution Approach 1:
The patent implements a feedback mechanism where the device senses channel conditions and uses this information to adjust its transmission behavior. The system receives feedback about interference levels and channel quality, then modifies power and rate settings accordingly, creating a closed-loop control system that maintains performance under varying load conditions
Solution Approach 2:
The patent transforms static transmission parameters into dynamic variables that adapt to changing network conditions. The system continuously adjusts power and rate based on real-time channel state information, enabling flexible response to varying traffic loads and interference patterns as more devices access the network
3Adaptability or versatility
If more short-range wireless systems are deployed in communities, then wireless service coverage is enhanced, but cross-network interference and congestion grow
Solution Approach 1:
The patent performs preliminary sensing of the wireless environment before initiating or adjusting transmissions. By detecting channel conditions and potential interference sources in advance, the system can proactively adjust its transmission parameters to avoid conflicts with other short-range wireless systems, preventing interference rather than reacting to it
Solution Approach 2:
The patent uses channel state information as an intermediary that mediates between multiple wireless systems operating in proximity. By sensing and reporting channel conditions, this information acts as a mediator that enables coordinating transmissions across different networks, allowing systems to share the electromagnetic environment harmoniously
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A device in a wireless system may determine when communications of a first radio access technology (RAT) experience interference from communications of a second RAT and may alter the communications of at least the first RAT or the second RAT to reduce the interference. In some instances, altering the communications include controlling a transmission rate to the second RAT based at least on a determined channel capacity.