Multi-Carrier Measurement Event Processing for Primary and Secondary Cells
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Solution Overview
Problem
Existing measurement configurations in mobile communication systems cannot distinguish between primary and secondary serving cells in multi-carrier systems, leading to inadequate measurement and reporting capabilities.
Innovation Solution
A method and system for processing measurement events in multi-carrier systems, where mobile terminals receive measurement assignments from the network side, determine and measure neighbor and serving cells, and report results based on configured measurement events for primary and secondary serving cells, with specific configurations for LTE and LTE-A devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing measurement configurations are used in multi-carrier systems, then the system can maintain backward compatibility with LTE, but the system cannot distinguish between primary and secondary serving cells leading to inadequate measurement and reporting capabilities
Solution Approach 1:
The patent segments the measurement configuration by introducing separate measurement identities (MID) for primary serving cell (PCell) and secondary serving cell (SCell). Each MID is associated with specific measurement objects and reporting configurations, allowing independent measurement and reporting for each cell type. This segmentation resolves the contradiction by enabling differentiated measurement capabilities while maintaining a structured configuration framework.
Solution Approach 2:
The patent adds a new dimension to the measurement configuration by introducing a cell type identifier (PCell/SCell) alongside the existing measurement parameters. This additional dimension allows the system to distinguish between primary and secondary serving cells, enabling separate measurement and reporting configurations without fundamentally changing the existing LTE measurement framework.
2Measurement precision
If measurement configurations are extended to support multiple serving cells, then accurate measurement and reporting for primary and secondary cells is achieved, but the impact on the LTE protocol and processing complexity increases
Solution Approach 1:
The patent makes the measurement identity (MID) universal by allowing it to serve both PCell and SCell measurement purposes. The same MID structure and associated parameters (measurement objects, reporting configurations) are reused for both cell types, reducing the need for entirely separate configuration frameworks and minimizing protocol impact.
Solution Approach 2:
The patent introduces specific parameter extensions to the existing measurement configuration, including cellType indication, separate measurement object lists for PCell and SCell, and differentiated reporting configurations. These parameter changes enable precise measurement and reporting for multiple serving cells while building upon the existing LTE measurement framework rather than requiring fundamental protocol changes.
3Reliability
If separate measurement configurations are implemented for primary and secondary serving cells, then measurement reporting accuracy is improved, but the configuration and processing overhead increases
Solution Approach 1:
The patent merges the measurement configuration structures for PCell and SCell under a unified framework. Both cell types use the same MID-based configuration structure, measurement object definitions, and reporting configuration formats. This merging approach allows separate and accurate measurement reporting for each cell type while avoiding the overhead of completely independent configuration systems.
Solution Approach 2:
The patent performs preliminary configuration by establishing measurement identities and associating them with measurement objects and reporting configurations before actual measurement and reporting occur. This preliminary setup enables the system to efficiently manage multiple serving cell measurements without requiring complex real-time configuration decisions, reducing processing overhead during operation.
Data Source
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AI summary
The present invention provides a method and a system for processing a measurement event in a multi-carrier system. The method for processing a measurement event in a multi-carrier system comprises: a mobile terminal receives a measurement assignment configured and transmitted by a network side device (S302); the mobile terminal determines a serving cell and a neighbour cell corresponding to the received measurement assignment (S304); the mobile terminal measures the determined serving cell and neighbour cell (S306); and when a measurement result meets a report condition of a measurement event corresponding to the received measurement assignment, the mobile terminal reports the measurement result (S308). By configuring measurement events and assignments for different serving cells, the present invention solves the problem that a measurement event cannot distinguish between a primary serving cell and a secondary serving cell in the conventional art, thus the mobile terminal can implement measurement and reporting under the configuration of multiple serving cells.