UE Failure Logging for Idle-State Wireless Network Optimization
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Solution Overview
Problem
Wireless devices in idle or inactive states fail to report data transmission procedure failures to the network, leading to incomplete network optimization due to the lack of transition to connected mode or receipt of report requests, resulting in discarded measurement and failure information.
Innovation Solution
Wireless devices log information on data transmission failures and count the number of failures, transitioning to RRC_CONNECTED state when a threshold is reached, and send reports for network optimization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If failure information is not reported to the network side, then the communication procedure can continue without interruption, but the network cannot optimize resource allocation and cannot prevent repeated failures
Solution Approach 1:
The patent implements a feedback mechanism where the UE reports failure information (including failure type, location, and occurrence count) to the network side. This feedback loop enables the network to receive failure notifications from the UE and use this information for optimization, resolving the contradiction by ensuring both reliability through failure reporting and preventing information loss.
Solution Approach 2:
The patent applies preliminary action by having the UE count and categorize failure occurrences before reporting to the network. The UE prepares failure information in advance (counting failures, determining failure types and locations) so that when reporting is triggered, the network already has structured information needed for optimization, preventing information loss while maintaining communication reliability.
2Productivity
If detailed failure information is reported to the network side, then the network can optimize resource allocation, but the signaling overhead increases
Solution Approach 1:
The patent segments failure information into distinct categories (failure type, failure location, occurrence count) and reports only the necessary segmented information to the network. This segmentation allows the network to receive detailed failure data for optimization while controlling signaling overhead by transmitting information in structured, manageable segments rather than as a monolithic data stream.
Solution Approach 2:
The patent applies local quality by tailoring the failure information reporting to specific local conditions. The UE determines which failure information to report based on the specific failure scenario (e.g., reporting only when failure count exceeds a threshold or when specific failure types occur), thereby providing detailed information where needed while minimizing unnecessary signaling overhead in other cases.
3Measurement precision
If the UE counts and categorizes failure information, then the network can perform accurate optimization, but the UE processing complexity increases
Solution Approach 1:
The patent applies partial action by having the UE count and categorize failures only up to a certain threshold or for a limited period before reporting. The UE performs partial counting and categorization (e.g., counting failures within a measurement period or until a threshold is reached) rather than continuously processing all possible failure data, thereby achieving sufficient measurement accuracy while controlling UE processing complexity.
Data Source
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AI summary
A method and apparatus for reporting data transmission procedure failure for network optimization in a wireless communication system is provided. A wireless device performs the data transmissions to a network in idle state and/or inactive state. A wireless device detects failures of the data transmissions. A wireless device logs information related to each of the failures and counts a number of the failures, while the logging validity timer is running. A wireless device establishes or resumes a connection with the network based on that the counted number is equal to or bigger than a threshold value.