5G Cell Reselection Measurement Reporting in RRC Idle States
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Solution Overview
Problem
The increasing demand for wireless data traffic in 5G communication systems, particularly in high-frequency bands, poses challenges in efficient cell selection and reselection measurements, especially in RRC_IDLE and RRC_INACTIVE states, due to the need for improved radio interface efficiency and coverage.
Innovation Solution
A user equipment (UE) and base station (BS) system that facilitates the reporting of cell selection and reselection measurements by transmitting and receiving messages for measurement requests and results, including cell and beam level measurements, to enhance network performance and support dual connectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cell selection and reselection measurements are performed in RRC_IDLE and RRC_INACTIVE states to improve network performance and mobility support, then measurement accuracy and network efficiency are improved, but measurement reporting complexity and signaling overhead increase
Solution Approach 1:
The patent applies preliminary action by configuring measurement parameters and criteria before the UE needs to perform measurements. The network pre-configures measurement identities, measurement objects, and reporting criteria in measurement configurations, so that when measurements are needed in RRC_IDLE/RRC_INACTIVE states, the UE can directly execute pre-defined measurement procedures without complex real-time configuration, thus reducing measurement reporting complexity while maintaining mobility support reliability
Solution Approach 2:
The patent segments the measurement reporting process into distinct components: measurement configuration, measurement execution, measurement result evaluation, and measurement reporting. By dividing the complex measurement reporting function into separate modular components with clear interfaces and processing logic, the system manages complexity more effectively while maintaining reliable mobility support through coordinated operation of these segmented functions
2Measurement precision
If measurement configurations are provided for multiple measurement objects and reporting criteria, then measurement precision is improved, but signaling overhead and processing requirements increase
Solution Approach 1:
The patent applies universality by designing measurement configurations that can serve multiple measurement objects and reporting criteria through a single unified configuration framework. The measurement configuration structure allows one configuration to encompass multiple measurement identities, each pointing to different measurement objects, with common reporting criteria applied across all measurements, thereby achieving high measurement precision while reducing redundant signaling overhead
Solution Approach 2:
The patent merges multiple measurement configurations into a unified measurement configuration structure that consolidates common parameters and reporting criteria. By combining measurement objects, reporting criteria, and evaluation thresholds into an integrated configuration framework, the system reduces the total quantity of signaling messages while maintaining the precision needed for accurate measurements of multiple objects
Data Source
AI summary
Methods and apparatuses for reporting cell (re) selection measurements. A user equipment (UE) includes a processor, and a transceiver operatively coupled to the processor. The transceiver is configured to receive, from a base station (BS), a first message including a request for cell (re) selection measurements, and in response to receipt of the first message, transmit to the BS, a second message including the cell (re) selection measurements.