Terminal Device Measurement Window Segmentation for Delay Reduction
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Solution Overview
Problem
In LTE systems, the continuous measurement gap for non-intra-frequency measurements disrupts data transmission, leading to delays that cannot meet low-delay service requirements.
Innovation Solution
A method where a terminal device receives measurement configuration information to perform cell measurements in multiple measurement windows within a measurement gap, allowing for data transmission during gaps between measurement windows, thereby reducing overall data transmission delay.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the UE performs non-intra-frequency measurement during a measurement gap, then measurement accuracy is improved, but data transmission delay increases
Solution Approach 1:
The measurement gap is segmented into multiple measurement windows (first measurement window, second measurement window, etc.) separated by measurement window gaps. The UE performs measurements in the first measurement window, then uses the measurement window gap for data transmission, and continues measurements in the second measurement window. This segmentation allows measurement activities to be divided into discrete time segments, enabling data transmission to occur during the gaps between measurement windows, thereby reducing overall data transmission delay while maintaining measurement accuracy.
2Measurement precision
If the measurement gap length is increased to improve measurement accuracy, then measurement precision is improved, but data transmission productivity decreases
Solution Approach 1:
The measurement gap is divided into multiple measurement windows with measurement window gaps between them. This segmentation allows the total measurement gap duration to be maintained for adequate measurement accuracy, while creating intervals where data transmission can occur. The measurement windows provide sufficient time for accurate cell measurements, and the measurement window gaps provide opportunities for data transmission, thus resolving the conflict between measurement precision and data transmission productivity.
Solution Approach 2:
By introducing measurement window gaps between measurement windows, the system enables continuous data transmission activity during what would otherwise be idle measurement periods. The UE can transmit data in the measurement window gaps, ensuring that data transmission is not completely interrupted by the measurement gap, thereby maintaining higher data transmission productivity while still achieving adequate measurement accuracy through the distributed measurement windows.
Data Source
AI summary
This application discloses a measurement method for a terminal device, including: receiving measurement configuration information; and measuring, in m measurement windows in a measurement gap based on the measurement configuration information, m groups of to-be-measured signals sent by a network device. Correspondingly, this application also describes a measurement configuration method, a terminal device, and a network device. According to an example implementation, the terminal device discontinuously performs measurement in the measurement windows in the measurement gap, and transmits data by using an interval between the measurement windows, to implement discontinuous measurement in the measurement gap, and further reduce a data transmission delay.