User Equipment Channel Measurement Logging for Mobile Networks
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Solution Overview
Problem
Current mobile communication systems face inefficiencies in radio network optimization due to high costs and time consumption of manual drive tests, and the processing complexity and resource waste associated with channel measurement information transmission in user equipment.
Innovation Solution
A method that allows user equipment to log and transmit channel measurement information with lower priority than regular data, using optimized radio bearers and selective reporting based on RRC states, with the base station controlling the timing and necessity of MDT measurements to prevent resource waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If user equipment transmits channel measurement information immediately in connected mode, then the base station can optimize cell coverage efficiently, but it increases processing complexity and consumes radio network capacity unnecessarily
Solution Approach 1:
The user equipment logs channel measurement information in advance during idle mode before transitioning to connected mode. This preliminary action allows the base station to receive ready-to-use measurement data immediately upon connection, eliminating the need for immediate measurement and processing operations in connected mode, thereby reducing processing complexity while maintaining optimization efficiency
Solution Approach 2:
The measurement and logging function is extracted from connected mode operations and performed separately in idle mode. By separating the measurement logging task from the connected mode data transmission, the patent reduces the processing burden during connected mode while ensuring measurement data is available when needed for cell coverage optimization
2Productivity
If user equipment logs and transmits channel measurement information in idle mode, then manual drive tests can be reduced, but it wastes radio network capacity when the information is not immediately needed
Solution Approach 1:
The base station controls whether the user equipment should log and transmit channel measurement information by sending specific signaling messages. This feedback mechanism allows the base station to request measurement information only when actually needed for optimization, preventing unnecessary transmission and radio network capacity waste while still enabling reduced manual drive tests
Solution Approach 2:
The user equipment logs measurement information in idle mode in advance, but transmission is deferred until the base station requests it. This approach prepares the data beforehand (reducing drive test needs) while controlling transmission timing to avoid wasting radio network capacity when the information is not immediately required
3Speed
If user equipment transitions to connected mode to transmit channel measurement information, then the information can be sent immediately, but it increases signaling overhead and transmission delays
Solution Approach 1:
The user equipment logs channel measurement information during idle mode before any mode transition occurs. By preparing the measurement data in advance while in idle mode, the patent eliminates the need to perform measurements and start logging after transitioning to connected mode, thus reducing transmission delays without requiring mode transition for the purpose of transmission
Solution Approach 2:
The patent uses a flag or indicator mechanism as an intermediary to communicate the availability of logged measurement information from idle mode to the base station. This intermediary allows the base station to request and receive measurement information without requiring the user equipment to transition to connected mode solely for transmission purposes, thereby reducing signaling overhead and transmission delays
Data Source
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AI summary
A method and apparatus for transmitting channel measurement information in a mobile communication system are disclosed. The method and apparatus enable a user equipment to log channel measurement information and transmit the same to a base station so as to enhance radio network performance and reduce processing complexity of the user equipment by removing unnecessary operations of the user equipment and preventing waste of radio network capacity during transmission of channel measurement information.