User Equipment Interference Timing Measurement for Downlink Scheduling
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Solution Overview
Problem
High-speed wireless communication networks using high-frequency bands are susceptible to interference from adjacent user equipment, which degrades network throughput, and existing technologies lack effective methods for precise interference measurement and reporting to base stations for scheduling optimization.
Innovation Solution
User equipment is equipped with an RF transceiver and processing circuit to measure interference signals, determining reception timings and reporting these measurements to the base station, allowing for optimized downlink scheduling to minimize interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If high-frequency band is used for high-speed wireless communication, then communication speed is improved, but interference from adjacent user equipment increases
Solution Approach 1:
The user equipment performs interference signal measurement and determination of reception timing in advance before actual downlink scheduling. By measuring interference signals from adjacent base stations and determining their reception timings beforehand, the system can proactively identify interference patterns and provide this information to the base station for optimized scheduling decisions, thus preventing interference degradation before it occurs.
Solution Approach 2:
The system implements a feedback mechanism where user equipment measures interference signals, determines reception timings, and reports this interference information back to the base station. The base station then uses this feedback to adjust downlink scheduling assignments, creating a closed-loop system that continuously optimizes scheduling to minimize interference while maintaining high communication speeds.
2Device complexity
If downlink scheduling assignment is performed without interference measurement, then device complexity is reduced, but network throughput deteriorates
Solution Approach 1:
The interference measurement process is segmented into distinct functional modules: interference signal reception, reception timing determination, measurement value calculation, and information reporting. This segmentation allows the complex interference measurement task to be divided into manageable steps that can be efficiently processed without overwhelming system complexity, while still achieving throughput improvement through optimized scheduling.
3Measurement precision
If interference signal measurement is performed continuously, then measurement precision is improved, but energy consumption increases
Solution Approach 1:
Instead of continuous interference measurement, the system performs measurements periodically at specific reception timings of interference signals. The user equipment determines interference reception timings and performs measurements at these discrete intervals, which maintains adequate measurement precision for scheduling optimization while significantly reducing energy consumption compared to continuous monitoring.
Data Source
AI summary
User equipment for communicating with a first base station, the user equipment including: a radio frequency (RF) transceiver; a processing circuit configured to process a signal received through the RF transceiver or a signal to be transmitted through the RF transceiver; and a controller configured to determine a first reception timing of a first interference signal, and measure a second interference signal that is received after the first interference signal based on the first reception timing, wherein the first interference signal and the second interference signal are received from adjacent user equipment communicating with a second base station.