Base Station Timing Control for Accurate CLI Measurement
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Solution Overview
Problem
The challenge of reducing measurement errors in cross-link interference (CLI) between terminals served by different base stations in wireless communication systems, particularly in the context of 6G communication systems, is addressed.
Innovation Solution
A method and apparatus for controlling interference signal measurement by considering the transmission and reception mode of a base station, involving the exchange of timing information between base stations and user equipment to facilitate accurate interference signal measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If full duplex technology is implemented to improve frequency efficiency and system networks in 6G communication systems, then uplink and downlink can simultaneously use the same frequency resources, but cross link interference (CLI) occurs between terminals served by different base stations
Solution Approach 1:
The patent converts the harmful CLI into a measurable parameter for system optimization. By having terminals measure and report CLI levels to their serving base stations, the system can identify interference patterns and adjust resource allocation, power control, or scheduling decisions to mitigate the interference while maintaining full duplex operation.
Solution Approach 2:
The patent implements a feedback mechanism where terminals measure CLI on uplink frequency resources, report measurements to base stations, and base stations use this information to control interference. This closed-loop feedback enables dynamic adjustment of transmission parameters to maintain frequency efficiency while managing CLI.
2Ease of operation
If terminals measure interference signals without considering base station transmission and reception modes, then measurement process is simple, but measurement errors occur due to timing misalignment
Solution Approach 1:
The patent applies preliminary action by having base stations transmit timing information to terminals before the actual interference measurement takes place. This timing information allows terminals to synchronize their measurements with the base station's transmission and reception schedule, ensuring accurate CLI measurements without complicating the measurement process itself.
Data Source
AI summary
The present disclosure relates to a 5G or 6G communication system for supporting a higher data transfer rate beyond 4G communication systems such as LTE. A method for operating a first base station to control interference signal measurement of a first user equipment (UE) in a wireless communication system, according to an embodiment of the present disclosure, may comprise the steps of receiving information on a transmission/reception mode of a second base station from the second base station, on the basis of the information on the transmission/reception mode of the second base station, determining timing information to be used when the first UE measures an interference signal caused by an uplink signal of a second UE communicating with the second base station, and transmitting the timing information to the first UE so that the first UE measures the interference signal.