Radio Scheduler and Controller for Interference Mitigation
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Solution Overview
Problem
The integration of multiple radios in communication devices leads to interference issues due to non-ideal components and spectral leakage, resulting in degraded service quality, especially when operating on the same frequency band.
Innovation Solution
A scheduler and controller system that schedules and controls communication parameters of multiple radio processes before simultaneous operation, adjusting parameters such as channel quality indicators to minimize interference by altering transmission parameters and resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple radios are integrated into a single communication device to enable broader connectivity and flexible services, then the versatility and functionality of the device is improved, but interference between radio connections increases due to non-ideal components and spectral leakage
Solution Approach 1:
The controller performs preliminary actions by controlling communication parameters of radio connections before they operate simultaneously. The scheduler identifies potential interference scenarios in advance and the controller adjusts parameters such as transmission power, timing, and frequency allocation to prevent interference before it occurs, rather than reacting after interference has degraded service quality
Solution Approach 2:
The system changes communication parameters of the radio connections to minimize interference. The controller modifies parameters such as transmission power levels, timing offsets, frequency allocations, and modulation schemes based on the identified radio connections and their potential interference patterns, allowing multiple radios to operate simultaneously without severe degradation
2Productivity
If multiple radio connections operate simultaneously on the same frequency band to maximize utilization, then the productivity and resource efficiency is improved, but inter-system interference increases resulting in degraded service quality
Solution Approach 1:
The scheduler performs preliminary scheduling to identify which radio connections can operate simultaneously on the same frequency band without causing severe inter-system interference. The controller then executes preliminary parameter control to ensure that when multiple connections do operate simultaneously, their parameters are adjusted to maintain acceptable service quality, rather than avoiding simultaneous operation entirely
Solution Approach 2:
The system changes communication parameters selectively for different radio connections operating on the same frequency band. The controller adjusts transmission power, timing, and other parameters based on the specific radio connection type and its potential interference with other connections, enabling simultaneous operation while maintaining reliability through parameter optimization
Data Source
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AI summary
An apparatus (300) comprising a scheduler (304) configured to schedule at least two radio communication processes for simultaneous operation, a controller (306) configured to control a communication parameter of a radio communication process in the set of at least two radio communication processes, the controller (306) being configured to control the communication parameter before the simultaneous operation of the at least two radio communication processes takes place.