Proximity Detection for Interference Mitigation in Wireless Networks
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Solution Overview
Problem
Wireless communication networks face interference issues due to data transmissions from neighboring base stations and user equipment, which degrade performance and are challenging to manage effectively.
Innovation Solution
A method and apparatus for detecting and managing interference by receiving semi-static system information from neighboring base stations, identifying interfering user equipment, and using interference over thermal monitoring and inverse discrete Fourier transform techniques to declare the presence of proximate interfering devices, allowing for resource allocation adjustments and interference mitigation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If data transmissions are performed in wireless networks, then communication functionality is provided, but interference from neighboring base stations and user equipment degrades performance
Solution Approach 1:
The system performs preliminary proximity detection of user equipment before interference occurs by analyzing uplink signals and determining UE location relative to cell coverage boundaries. This advance detection enables preemptive interference mitigation through resource allocation adjustments or handover decisions, preventing performance degradation before it happens
Solution Approach 2:
The system continuously monitors uplink signals from user equipment and provides feedback regarding proximity to cell boundaries and potential interference conditions. This feedback loop enables dynamic adjustment of resource allocation and handover decisions based on real-time interference assessment, maintaining communication quality while managing interference
2Reliability
If interference mitigation techniques are implemented, then communication performance is improved, but system complexity increases
Solution Approach 1:
The system enables user equipment to self-identify their proximity status to cell boundaries through network-provided reference signals and measurement configurations. The UE autonomously reports proximity indicators to the base station, eliminating the need for complex network-side detection algorithms while achieving effective interference management through distributed intelligence
Data Source
AI summary
Certain aspects of the present disclosure provide methods, apparatus, and computer-program products for the detection of potentially interfering or interfering user equipment (UE) in the proximity of a detecting entity. The detecting entity may be a base station or a UE. In an aspect, the proposed detecting scheme utilizes semi-static system information from one or more neighboring base stations (BSs), and identifies a neighbor BS's UE that causes interference in the physical uplink control channel (PUCCH). The proposed detecting scheme may also identify corresponding resources that are allocated to an interfering UE by the interfering neighbor base station. In aspects, detecting schemes may not utilize information from one or more neighboring BSs.