Reconfigurable Filter Beamwidth Control for Coverage Enhancing Devices
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing coverage enhancing devices (CEDs) lack optimized beamwidth and radiated power control, which can lead to inefficiencies in wireless communication, particularly in high mobility scenarios and when facing regulatory EIRP limitations.
Innovation Solution
The implementation of reconfigurable filters in CEDs that allow for dynamic control of beamwidth and radiated power, enabling the CEDs to adjust their output based on messages from operator nodes regarding desired beamwidths and EIRP levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If wider beamwidth is used for transmitting incident signals, then coverage area and mobility support are improved, but EIRP level decreases and interference resistance deteriorates
Solution Approach 1:
The patent implements dynamic beamwidth control by reconfiguring the CED's filter characteristics in real-time based on UE mobility state and channel conditions. The system transitions from static beamwidth to adaptive beamwidth that can be widened for high mobility scenarios and narrowed for interference-prone environments, resolving the contradiction between coverage area and EIRP level
Solution Approach 2:
The system changes the beamwidth parameter dynamically by applying different reconfigurable filters to the CED. By adjusting the filter characteristics, the beamwidth can be optimized for different operational scenarios, allowing the system to achieve both wide coverage when needed and high EIRP when regulatory limits permit
2Power
If narrower beamwidth is used for transmitting incident signals, then EIRP level and interference resistance are improved, but coverage area and mobility support deteriorate
Solution Approach 1:
The system dynamically adjusts beamwidth based on real-time assessment of UE mobility and channel conditions. When UE is stationary or moving slowly and channel conditions are good, the system narrows the beamwidth to increase EIRP and reduce interference, while maintaining the ability to quickly widen the beam if mobility increases
3Device complexity
If fixed filter configuration is used in CED, then device complexity is reduced, but adaptability to different beamwidth requirements deteriorates
Solution Approach 1:
The patent implements a universal reconfigurable filter architecture in the CED that can adapt to multiple beamwidth requirements using a single configurable component. This multi-functional approach allows the CED to serve different beamwidth needs (wide for mobility, narrow for interference) without requiring multiple fixed filters, thus maintaining low complexity while achieving high adaptability
Data Source
AI summary
A method of operating a coverage enhancing device (CED) is proposed, wherein the CED provides reconfigurable filters for incident signals received along one or more input spatial directions on a radio channel and transmitted as outgoing signals into one or more output spatial directions, the method comprising: applying a first filter of the reconfigurable filters to receive an incident signal along one or more spatial directions on a radio channel and transmitting the incident signal as an outgoing signal into an output spatial direction, obtaining a message related to a beamwidth to be used for transmitting the incident signal as the outgoing signal into the output spatial direction, applying a second filter of the reconfigurable filters to receive an incident signal along the one or more spatial directions on the radio channel and transmit the incident signal as the outgoing signal into the output spatial direction using the beamwidth based on the message related to the beamwidth. Further, a CED, a method of operating an operator node and an operator node are described.