MBMS Information Logging Scope Control for Wireless Terminals
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Solution Overview
Problem
In wireless communication systems, particularly in 3GPP LTE networks, there is a lack of efficient methods for networks to receive reports on Multimedia Broadcast and Multicast Service (MBMS) information from user equipment (UE), leading to inadequate optimization of network performance and power management due to the absence of feedback on MBMS reception status.
Innovation Solution
A method is introduced where the network sets an MBMS information acquisition/logging scope for the UE, allowing it to log and report MBMS information only when the specified scope is satisfied, thereby controlling power consumption and signaling, enabling efficient power management and radio resource management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the network requests continuous MBMS information reporting from UE, then the network can obtain detailed MBMS reception status, but the UE power consumption and signaling overhead increase significantly
Solution Approach 1:
The patent implements selective logging where the UE logs MBMS information only under specific conditions (e.g., when reception quality is below a threshold, when service starts/stops, or in specific geographic areas) rather than continuously. This partial action approach ensures the network receives sufficient information to optimize MBMS service while significantly reducing UE power consumption compared to continuous reporting.
Solution Approach 2:
The network configures logging parameters including logging duration, logging interval, and triggering conditions. By dynamically adjusting these parameters, the system optimizes the balance between information quality and power consumption - for example, extending logging duration only in areas with poor reception or during critical service periods.
2Productivity
If the UE logs and reports MBMS information continuously, then the network can optimize MBMS service delivery, but the signaling overhead and network resource usage increase
Solution Approach 1:
The UE is configured to log MBMS information selectively based on predefined triggering conditions such as reception quality thresholds, service state changes (start/stop), or geographic location. This ensures that reporting occurs only when necessary for network optimization, reducing signaling overhead while maintaining network productivity.
Solution Approach 2:
The patent extracts and reports only the most relevant MBMS information based on configured criteria, such as logging only when reception quality degrades below a threshold or when service state changes occur. This extraction of essential information reduces signaling overhead while preserving the network's ability to optimize MBMS service delivery.
3Measurement precision
If the network configures extensive logging parameters for MBMS information, then the logging accuracy and coverage improve, but the device complexity and configuration overhead increase
Solution Approach 1:
The patent employs a universal logging framework where a single set of configuration parameters (logging duration, interval, triggering conditions) can be applied across different MBMS services and scenarios. This multi-functional approach enables the system to achieve accurate and comprehensive logging without increasing device complexity, as the same mechanism handles diverse logging requirements.
Solution Approach 2:
The network pre-configures logging parameters and triggering conditions based on historical data and service requirements. This preliminary configuration allows the UE to automatically perform accurate logging without real-time complex decision-making, reducing device complexity while maintaining high measurement precision.
Data Source
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AI summary
Provided is a method for reporting multimedia broadcast and multicast service (MBMS) information by a terminal in a wireless communication system. The method comprises: determining whether or not to permit the logging of MBMS information; logging the MBMS information if the logging of the MBMS information is permitted; and reporting the logged MBMS information to a network. Whether or not to permit the logging of the MBMS information is determined on the basis of logging scope.