UE MDT Report Streaming During Idle and Inactive States
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently streaming minimization of drive test (MDT) reports from user equipment (UE) while conserving power and processing resources, particularly when the UE is in an idle or inactive state.
Innovation Solution
The UE is configured to stream MDT measurements to a base station while remaining in an idle or inactive state, using periodic streaming techniques that allow for efficient power conservation and resource management, enabling faster and more frequent reporting to the core network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If MDT reports are transmitted using existing mechanisms, then the network can collect measurement data, but the reports are sent immediately when generated causing excessive signaling traffic and inability to control transmission timing
Solution Approach 1:
The patent implements periodic streaming of MDT reports at configured intervals rather than immediate transmission. The network configures the UE with periodic reporting parameters, and the UE transmits MDT reports periodically according to these configurations, allowing controlled signaling traffic while maintaining measurement data collection.
Solution Approach 2:
The network pre-configures the UE with MDT reporting parameters including periodicity, resource allocation, and transmission timing before the UE starts measuring. This preliminary configuration enables the UE to buffer and transmit reports at predetermined times, avoiding ad-hoc transmission decisions and reducing signaling overhead.
2Productivity
If MDT reports are transmitted immediately when generated, then measurement data is collected quickly, but buffer overflow occurs and measurement data is lost
Solution Approach 1:
The network pre-configures buffering parameters and periodic transmission schedules before the UE starts measurement. The UE buffers measurement data in advance according to pre-defined rules and transmits periodically, ensuring continuous data collection without overflow while maintaining collection efficiency.
Solution Approach 2:
The patent implements dynamic buffering and periodic transmission where the UE can adjust buffer management based on configured parameters and network conditions. The periodic transmission mechanism dynamically balances between collecting measurements quickly and preventing buffer overflow by transmitting at optimized intervals.
3Loss of energy
If MDT reports are transmitted periodically at configured times, then signaling traffic is controlled and data loss is prevented, but the system requires complex configuration and coordination
Solution Approach 1:
The patent uses existing LTE signaling mechanisms and message structures for MDT configuration and transmission, making the periodic reporting feature compatible with current network infrastructure. By reusing established protocols and message formats, the implementation avoids creating entirely new complex systems while achieving controlled periodic reporting.
Data Source
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AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, configuration information that indicates one or more first measurement types. Accordingly, the UE may transmit, to the base station, periodically and while the UE is in an idle mode or an inactive state, first measurements based at least in part on the one or more first measurement types indicated in the configuration information. In some aspects, the UE may further transmit, to the base station, second measurements based at least in part on a second measurement type. The first measurement type(s) may be associated with a minimization of drive test (MDT). Similarly, the second measurement type may be associated with an MDT. Numerous other aspects are provided.