Logged Measurement Reporting via Segmentation and Availability Indicators
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wireless communication systems, particularly in 3GPP LTE, the existing methods for reporting logged measurements face challenges when the measurement size exceeds the maximum allowed message size, leading to incomplete data transmission during Minimization of Drive Tests (MDT), resulting in inefficiencies and resource wastage for service providers.
Innovation Solution
A method where a user equipment (UE) receives an MDT configuration, logs measurements, and upon request from a base station, transmits an information response that includes part of the logged measurement along with an availability indicator, allowing for the transmission of all logged measurements even if they exceed the standard message size by distributing them across multiple messages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the UE transmits all logged measurement data in a single message, then the completeness of data transmission is improved, but the message size exceeds the maximum allowed limit
Solution Approach 1:
The patent divides the logged measurement data into multiple segments, each fitting within the maximum message size limit. The UE transmits these segments sequentially using multiple information response messages, with each message containing a portion of the complete measurement log, thereby resolving the contradiction between data completeness and message size constraints.
2Device complexity
If the UE transmits logged measurement data in multiple messages, then the message size constraint is satisfied, but the complexity of the transmission protocol increases
Solution Approach 1:
The patent employs preliminary actions by including availability indicators and segment identifiers in each transmitted message. The UE prepares metadata information in advance that enables the network to automatically track and reconstruct the complete measurement log from multiple segments, reducing the operational complexity despite multiple transmissions.
3Extent of automation
If the UE waits for network request before transmitting measurement data, then the network can control the transmission process, but the transmission delay increases
Solution Approach 1:
The patent implements a feedback mechanism where the UE monitors network requests and transmits measurement data segments in response. The availability indicator provides feedback to the network about the transmission status, enabling automated control while minimizing delays through efficient request-response cycles.
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
A method and apparatus of reporting a logged measurement in a wireless communication system are provided. A user equipment receives a Minimization of Drive Tests (MDT) configuration and logs measurements based on the MDT configuration to collect a logged measurement. The user equipment receives an information request to request the logged measurement from a base station and transmits an information response to the base station. The information response includes a part of the logged measurement and an availability indicator indicating that all entries in the logged measurement are not included in the information response.