UE Fallback Reporting for SON Random Access Optimization
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Solution Overview
Problem
Current wireless communication systems face challenges in optimizing random access operations in self-organizing networks (SON) due to limitations in UE reporting mechanisms, which affect the efficiency and reliability of 5G/NR mobile communications.
Innovation Solution
The implementation of enhanced UE reporting mechanisms that allow User Equipment (UE) to store and transmit configuration information and fallback operation indicators to the base station (BS) during random access (RA) procedures, enabling optimized RA parameter adjustments by a SON entity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If UE stores and transmits detailed configuration information and fallback operation indicators to BS, then RA operation efficiency is improved, but device complexity and signaling overhead increase
Solution Approach 1:
The configuration information is segmented into two parts: essential parameters stored in the UE, and detailed parameters transmitted only when needed (during fallback events). This segmentation allows the UE to maintain minimal stored information while providing detailed reports only when RA procedure transitions occur, thus improving efficiency without permanently increasing complexity.
Solution Approach 2:
The UE pre-stores essential configuration information locally before RA operations. When a fallback event occurs, the UE can immediately generate a report using this pre-stored information without needing to request additional configuration data, thereby improving RA operation efficiency while limiting the amount of information that needs to be managed.
2Reliability
If UE transmits detailed RA reports to BS, then network optimization capability is improved, but loss of time for report preparation and transmission increases
Solution Approach 1:
The UE prepares and stores configuration information in advance during normal RA operations. When a fallback event occurs, the report can be generated immediately using pre-stored data, eliminating the need for time-consuming data collection and preparation at the moment of reporting.
Solution Approach 2:
The UE autonomously generates and transmits reports only when fallback events occur, without requiring continuous network requests or complex coordination. This self-service approach reduces signaling overhead and minimizes the time the network needs to spend on report management while maintaining optimization capability.
Data Source
AI summary
Methods and apparatuses for random access (RA) operation in a wireless communication system. A method of operating a first user equipment (UE) comprises: receiving, from a base station (BS), configuration information for a first RA procedure; storing part of the configuration information; generating and storing information indicating that a fallback operation is triggered, during the RA operation, to a second RA procedure from the first RA procedure per RA attempt; and transmitting, to the BS, RA information including the stored part of the configuration information and the stored information.