Independent Measurement Gap Configuration for 5G NR-U
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Solution Overview
Problem
Existing 5G NR-U technologies face challenges in efficiently configuring and managing measurement gaps for user equipment (UE) to support independent measurement gap configurations, which is crucial for optimal network performance and resource management.
Innovation Solution
The method involves a UE transmitting an indication to a currently camped cell about its support for an independent measurement gap configuration for 5G NR-U, receiving measurement gap configuration information, and configuring a measurement gap pattern to receive signals during designated measurement gaps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single measurement gap configuration is used for both 5G NR cells and 5G NR-U cells, then device complexity is reduced, but measurement precision and network performance deteriorate due to inability to optimize gaps for unlicensed spectrum characteristics
Solution Approach 1:
The patent divides the measurement gap configuration into separate independent configurations for 5G NR cells and 5G NR-U cells. The network can now provide distinct measurement gap patterns (e.g., first measurement gap pattern for licensed spectrum, second measurement gap pattern for unlicensed spectrum) with different parameters optimized for each spectrum type, rather than using a single unified configuration.
2Measurement precision
If independent measurement gap configuration for 5G NR-U is implemented, then measurement precision and network performance improve, but device complexity and configuration management difficulty increase
Solution Approach 1:
The UE automatically selects the appropriate measurement gap pattern based on the serving cell type. When the UE is served by a 5G NR-U cell, it automatically applies the second measurement gap pattern optimized for unlicensed spectrum; when served by a 5G NR cell, it applies the first measurement gap pattern. This self-service mechanism eliminates the need for manual configuration management by the user.
3Adaptability or versatility
If measurement gaps are configured for multiple different types of measurements simultaneously, then adaptability improves, but resource management complexity and time loss increase
Solution Approach 1:
The measurement gap configuration becomes dynamic, allowing the network to provide different measurement gap patterns based on current network conditions and UE requirements. The system can switch between different gap patterns (first pattern for NR, second pattern for NR-U) depending on which serving cell the UE is connected to, enabling flexible adaptation without permanent overhead.
Data Source
AI summary
A user equipment (UE) supports an independent measurement gap configuration. The UE transmits an indication to a currently camped cell indicating that the UE supports an independent measurement gap configuration for new radio in an unlicensed spectrum (NR-U), receives measurement gap configuration information from the currently camped cell, configures a measurement gap pattern based on the measurement gap configuration information and receives a signal from a cell during a measurement gap of the measurement gap pattern.