User Equipment CR Measurement Using Past and Future Intervals
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Solution Overview
Problem
Current wireless communication systems face challenges in accurately measuring and managing Channel Occupancy Ratio (CR) in user equipment, particularly in scenarios where resource pools change, leading to incomplete or inaccurate CR measurements.
Innovation Solution
A method and apparatus for user equipment to measure and transmit CR by evaluating the number of subchannels within a predetermined interval that includes both past and future time frames, allowing for effective CR measurement and transmission parameter adjustments such as transmit power, subchannel size, and retransmission count.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If CR is measured using only past time intervals, then measurement simplicity is maintained, but measurement accuracy deteriorates when resource pools change
Solution Approach 1:
The patent applies preliminary action by including future time intervals in the CR measurement window. Instead of only measuring past subchannel occupancy, the system proactively incorporates predicted future occupancy based on resource pool configuration, ensuring accurate CR calculation even when resource pools change dynamically. This resolves the contradiction by preparing the measurement framework in advance to handle resource pool transitions.
Solution Approach 2:
The patent implements dynamics by making the measurement interval adaptive to resource pool changes. The system dynamically adjusts the measurement window to include both past and future intervals, allowing the CR measurement to adapt to changing resource allocation scenarios. This dynamic approach maintains measurement accuracy while managing complexity through flexible interval configuration.
2Measurement precision
If measurement interval is extended to include future time, then CR measurement accuracy improves, but measurement time consumption increases
Solution Approach 1:
The patent applies parameter changes by configuring the measurement interval with specific time parameters that balance accuracy and efficiency. The system adjusts the future time interval parameter based on resource pool characteristics, using larger intervals when resource pools are stable and smaller intervals when changes are detected. This dynamic parameter adjustment resolves the contradiction by optimizing the time-accuracy tradeoff.
3Productivity
If transmission parameters are frequently adjusted based on CR, then resource utilization efficiency improves, but system stability deteriorates
Solution Approach 1:
The patent implements feedback by using CR measurement results to dynamically adjust transmission parameters such as subchannel selection and power levels. The system continuously monitors CR and provides feedback to the transmission controller, enabling adaptive resource allocation that improves efficiency while maintaining stability through controlled feedback loops that adjust parameters only when necessary.
Data Source
AI summary
One embodiment of the present invention relates to a method of measuring and transmitting a Channel occupancy Ratio (CR) by a user equipment in a wireless communication system, the method including measuring the CR evaluated as the number of subchannels related to a transmission of the UE in an interval in a predetermined size and performing the transmission based on the measured CR, wherein the interval in the predetermined size includes both a past time interval and a future time interval with reference to a timing at which the user equipment measures the number of the subchannels.