Proximity Services Interference Coordination in Mobile Networks
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Solution Overview
Problem
Current device-to-device communication systems face inefficiencies and interference challenges, limiting their scalability and performance in wireless communication networks, particularly in managing interferences and determining optimal transmission power for reliable sidelink communications.
Innovation Solution
A generic framework for interference coordination and power control is introduced, incorporating distributed mode selection, power control, and inter-cell interference coordination, along with autonomous localization techniques to enhance proximity services and reduce network interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If device-to-device communications are enabled in wireless networks, then network capacity and frequency reuse are improved, but interference levels increase and transmission reliability deteriorates
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting transmission power levels based on interference conditions. The base station configures power control parameters including maximum transmit power, minimum transmit power, and power scaling factors that adapt to network load and interference levels, thereby maintaining high network capacity while controlling harmful interference effects
Solution Approach 2:
The patent implements feedback mechanisms where user equipment reports channel state information, interference measurements, and transmission quality metrics back to the base station. This feedback enables the base station to adjust power control parameters and resource allocation in real-time, resolving the contradiction between maintaining high productivity and reducing harmful interference through continuous monitoring and adaptation
2Reliability
If transmission power is increased for reliable sidelink communications, then communication reliability is improved, but interference to other devices and network performance deteriorates
Solution Approach 1:
The patent applies parameter changes by configuring dynamic power control parameters that adjust transmit power based on communication conditions. The base station provides power control commands including TPC (Transmit Power Control) adjustments, power offsets, and maximum/minimum power limits that enable reliable communication at the lowest necessary power level, preventing excessive interference generation
Solution Approach 2:
The patent implements dynamic power control where transmission power is continuously adjusted based on real-time channel conditions, interference measurements, and network state. The system transitions from static power levels to dynamic adaptation, using feedback loops and base station commands to optimize power consumption while maintaining communication reliability and minimizing harmful interference
3Speed
If device-to-device links are established without coordination, then communication speed is improved, but network interference and system stability worsen
Solution Approach 1:
The patent introduces the base station as an intermediary that coordinates device-to-device communications. The base station allocates dedicated time-frequency resources, manages power control parameters, and oversees link establishment without preventing direct device communication. This intermediary approach enables high-speed communication while maintaining network stability through centralized resource management and interference coordination
Data Source
AI summary
Apparatus, system or method to improve communications in a wireless communication network. Steps may include sending specific information to user equipment or adjacent base stations so that the user equipment and adjacent base stations can determine interference levels in sidelink communications. The apparatus may include a location-estimation component interconnected with a self-tracking component and a signal-detection component. The apparatus may include a proximity system implemented using instructions stored in a non-transitory computer readable medium and the proximity system may be usable to locate one or more target transmitters. In some embodiments, the system may include other modules such as a localization module; a proximity-description module; and a proximity-display module. The proximity system may also include a proximity advertisement module, which includes an access management component; an ownership management component; and a content management component.