UE Frequency Allocation Signaling for Targeted Interference Management
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Solution Overview
Problem
Existing wireless communication systems face challenges in effectively managing interference between user equipment (UE) and nodes, particularly in heterogeneous networks with varying transmit power levels and coverage areas, which can impact spectral efficiency and user experience.
Innovation Solution
The implementation of a method and apparatus for UE and node communication that involves transmitting and receiving a list of frequency allocations associated with interference, allowing for coordinated communication strategies to mitigate interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If heterogeneous networks with varying transmit power levels are deployed to expand coverage area, then network coverage is improved, but interference between user equipment and nodes increases
Solution Approach 1:
The patent applies local quality by configuring UE-specific interference management parameters tailored to each user equipment's specific interference conditions. The network node determines and signals interference frequency allocations and avoidance configurations individually to each UE based on its local interference environment, rather than applying uniform interference management across the entire network. This allows each UE to optimize its reception in its specific location and interference context.
Solution Approach 2:
The patent implements parameter changes by dynamically adjusting interference management parameters including frequency allocations, avoidance configurations, and reception parameters based on measured interference conditions. The network node monitors interference levels and modifies these parameters in response to changing interference conditions, allowing the system to adapt to varying transmit power levels and interference patterns in heterogeneous networks.
2Reliability
If interference management techniques are implemented to reduce interference, then communication quality is improved, but spectral efficiency decreases
Solution Approach 1:
The patent applies dynamics by making interference management configurations adaptive and time-varying rather than static. The network node continuously monitors interference conditions and dynamically updates interference frequency allocations and avoidance configurations based on current interference measurements. This allows the system to optimize communication quality when interference is present while minimizing impact on spectral efficiency when interference conditions improve.
Solution Approach 2:
The patent implements partial action by applying interference management measures selectively only to the specific frequency allocations where interference is detected, rather than applying blanket interference reduction across all frequencies. The network node identifies and manages only the interfering frequency resources, allowing uninterrupted communication on non-interfering frequencies, thus maintaining spectral efficiency while improving communication quality where needed.
3Object-affected harmful factors
If UE-specific interference configurations are implemented, then interference mitigation is improved, but device complexity increases
Solution Approach 1:
The patent implements feedback by establishing a closed-loop system where the UE measures interference conditions and reports them to the network node, which then adjusts interference management configurations and signals them back to the UE. This feedback mechanism allows the network to optimize interference mitigation for each UE based on actual measured conditions, improving interference mitigation effectiveness while keeping device complexity manageable through centralized control.
Solution Approach 2:
The patent applies self-service by enabling the UE to autonomously measure interference on its own and determine its own interference conditions without requiring complex network-side interference measurement infrastructure. The UE performs self-measurement and reporting, which simplifies the overall system complexity while still enabling UE-specific interference management through the feedback loop.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to a node, a list of frequency allocations that are associated with interference at the UE. The UE may communicate in accordance with the list of frequency allocations. Numerous other aspects are described.