Mobile-Guided Downlink Interference Management via Resource Segmentation
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Solution Overview
Problem
Current wireless communication systems face challenges in managing mobile downlink interference, particularly from neighboring base stations operating in similar spectrum, which affects user throughput and resource allocation efficiency.
Innovation Solution
Mobile devices detect interference and report preferred radio resource sets and power transfer limits to base stations, enabling them to adjust transmission power and allocate resources more effectively, thereby coordinating interference mitigation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If base stations transmit on similar spectrum to maximize resource utilization, then resource allocation efficiency improves, but downlink interference increases affecting user throughput
Solution Approach 1:
The patent segments the radio resource space by introducing a hierarchical structure where resources are divided into monitored resource sets and non-monitored resource sets. User equipment selectively monitors only certain resource sets for interference conditions, allowing the system to maintain high resource utilization while reducing interference impact on specific users.
Solution Approach 2:
The patent changes the parameter of resource monitoring by dynamically configuring which resource sets user equipment should monitor. Based on interference measurements and channel conditions, the system adjusts the monitoring parameters to optimize the trade-off between resource utilization and interference management.
2Object-affected harmful factors
If base stations coordinate interference mitigation centrally, then interference management improves, but system complexity increases
Solution Approach 1:
The patent implements self-service by enabling user equipment to autonomously measure interference conditions on monitored resource sets and report findings to the base station. The base station then autonomously determines resource allocation adjustments based on these reports, reducing the need for complex centralized coordination while maintaining effective interference management.
Solution Approach 2:
The patent establishes a feedback loop where user equipment continuously monitors interference on configured resource sets and reports measurements to the base station. This feedback mechanism enables adaptive interference coordination without requiring complex pre-planning or centralized control, as the system dynamically adjusts based on real-time conditions.
3Measurement precision
If user equipment monitors all radio resources for interference, then interference detection accuracy improves, but device complexity and power consumption increase
Solution Approach 1:
The patent segments the vast radio resource space into monitored and non-monitored portions. User equipment is configured to monitor only specific resource sets that are most relevant to its interference exposure, rather than monitoring all resources. This segmentation maintains adequate interference detection accuracy while significantly reducing device complexity and power consumption.
Solution Approach 2:
The patent applies partial action by having user equipment monitor only a subset of radio resources rather than all resources. The monitored resource sets are carefully selected to provide sufficient interference detection capability for the user's specific location and service requirements, avoiding the excessive complexity of universal monitoring.
Data Source
AI summary
Systems and methods can be implemented on a user device and eNBs to manage downlink interference at the user device. The user device in a cell associated with a corresponding serving base station may receive interference from one or more interfering base stations. The user device can identify a preferred radio resource set in response to the detected interference and transmit a preferred radio resource indication to at least the serving base station in response to the detected interference. The preferred radio resource indication can be used for identifying the preferred radio resource set associated with the serving base station.