Downlink Bandwidth Reconfiguration for Cell-Site Interference
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional telecommunications networks blindly configure user devices with wider channels than the license permits, leading to interference issues and slower services due to near-far interference, adjacent-channel interference, and other distortions, without considering interference measurements.
Innovation Solution
The system modifies downlink configurations of user devices by assigning a first bandwidth, blanking a portion of it, and adjusting to a smaller bandwidth when interference measurements exceed a threshold, mitigating interference by configuring UEs to use the next narrower channel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the system assigns a wider bandwidth to the user device, then the data transmission capacity is improved, but the interference from adjacent cell sites increases
Solution Approach 1:
The patent implements dynamic bandwidth adjustment where the system monitors interference levels and dynamically modifies the downlink bandwidth configuration. When interference measurements exceed a threshold, the system transitions from a wider bandwidth (first bandwidth) to a narrower bandwidth (second bandwidth), creating a dynamic adaptation mechanism that responds to real-time interference conditions rather than using a fixed configuration
Solution Approach 2:
The system incorporates feedback loops where interference measurements are continuously monitored and fed back to the bandwidth configuration decision. The network entity uses these feedback measurements to determine when to switch between different bandwidth configurations, ensuring that the bandwidth adjustment is based on actual interference conditions rather than assumptions
2Object-affected harmful factors
If the system uses a narrower bandwidth, then the interference is reduced, but the data transmission capacity decreases
Solution Approach 1:
The system dynamically switches between different bandwidth configurations based on real-time interference conditions. When interference is low, the system uses a wider bandwidth for optimal capacity; when interference exceeds the threshold, it transitions to a narrower bandwidth to mitigate interference, creating a dynamic balance between capacity and interference protection
Solution Approach 2:
The patent changes the bandwidth parameter dynamically based on interference measurements. The system monitors interference levels and adjusts the bandwidth parameter accordingly, switching between a first bandwidth (wider) and a second bandwidth (narrower) to optimize the trade-off between transmission capacity and interference protection
3Device complexity
If the system blindly configures user devices with fixed bandwidth, then the device complexity is reduced, but the adaptability to interference conditions deteriorates
Solution Approach 1:
The system transitions from static, fixed bandwidth configuration to dynamic, adaptive bandwidth configuration. The network entity continuously monitors interference conditions and dynamically adjusts the downlink bandwidth, enabling the system to adapt to changing interference environments while maintaining manageable complexity through automated decision-making
Data Source
AI summary
Methods and systems are provided for modifying a downlink configuration of a user device in a cell to mitigate interference. The methods and systems assign, via a first cell site, a first bandwidth to the user device within a serviceable area of the first cell site. The first bandwidth is blanked such that the user device receives data on a second bandwidth that is a smaller bandwidth than the first bandwidth. In addition, the methods and systems determine that the first bandwidth has at least one interference measurement above a threshold. Upon determining that the at least one interference measurement is above the threshold, the methods and systems modify the downlink configuration of the user device to a third bandwidth. The third bandwidth is a smaller bandwidth than the second bandwidth.