Measurement Gap Configuration for LTE-NR Dual-Connectivity
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Solution Overview
Problem
Current 5G communication systems face challenges in obtaining complete NR coverage, particularly due to limited frequency spectrums below 6 GHz, and lack a definite signal quality measurement method for LTE-NR dual-connectivity, which affects data transmission and user experience.
Innovation Solution
A measurement gap configuration method is introduced, where a network device configures measurement gaps for terminal devices across multiple radio frequency channels, allowing flexible signal quality measurement and data processing, reducing the impact on data transmission and improving user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a terminal device performs signal quality measurement on multiple radio frequency channels, then measurement completeness is improved, but data transmission interruption increases
Solution Approach 1:
The patent segments the measurement process by configuring separate measurement gaps for different radio frequency channels. Each measurement gap is specifically assigned to measure signal quality on a corresponding RF channel, allowing the terminal device to perform measurements in an organized, channel-by-channel manner rather than requiring a single comprehensive measurement period that would interrupt all transmissions.
Solution Approach 2:
The patent implements dynamic measurement gap configuration where the network device can flexibly adjust the timing, duration, and allocation of measurement gaps based on current network conditions and terminal device capabilities. This dynamic approach allows optimization between measurement completeness and data transmission continuity, adapting to changing requirements without fixed rigid schedules.
2Adaptability or versatility
If measurement gaps are configured for multiple radio frequency channels, then measurement flexibility is improved, but system complexity increases
Solution Approach 1:
The patent creates a universal measurement gap configuration framework that can be applied across multiple radio frequency channels with different characteristics. The same basic measurement gap structure and configuration methods are used regardless of which RF channel is being measured, providing a multi-functional solution that handles various channel types (LTE, NR, different frequency ranges) through a unified approach, thereby managing complexity while maintaining flexibility.
3Productivity
If LTE and NR dual-connectivity is implemented, then system throughput is improved, but signal quality measurement difficulty increases
Solution Approach 1:
The patent segments the dual-connectivity measurement process by assigning specific measurement gaps to specific RF channels associated with either LTE or NR connections. This segmentation allows the terminal device to measure signal quality on LTE channels and NR channels separately using dedicated measurement gaps, simplifying the overall measurement process despite the complexity of maintaining dual-connectivity for increased throughput.
Data Source
AI summary
Embodiments of this application disclose a measurement gap configuration method, a terminal device, and a network device. The method includes: receiving, by a terminal device, configuration information sent by a network device, where the configuration information includes at least one measurement gap corresponding to a plurality of radio frequency channels that the terminal device has; and performing, by the terminal device, signal quality measurement according to the at least one measurement gap. The measurement gap configuration method enables the terminal device to flexibly process a measurement and data receiving/transmission process, to reduce impact of measurement on data receiving/transmission, thereby improving user experience.