UE Network Slice Reporting for Cell Access and Radio Link Failures
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Solution Overview
Problem
In scenarios where different network slices support different services, existing technologies face challenges in effectively reporting network slice-related information by user equipment (UE) to base stations, leading to inefficiencies in network slice access.
Innovation Solution
The terminal device generates and reports a comprehensive report result that includes logged minimization of drive tests, radio link failure, and random access channel reports, incorporating network slice identifiers and signal strength information, enabling the radio access network device to adjust network slices based on these reports to improve access success rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE sends comprehensive report results including network slice information, then the network slice access success rate is improved, but the reporting complexity and information processing overhead increase
Solution Approach 1:
The patent segments the report result into multiple distinct components: cell identification information, network slice identification information, and measurement information. Each component serves a specific function and can be processed independently by the network device, reducing the complexity of handling comprehensive reports while ensuring all necessary information is conveyed for network slice access optimization.
Solution Approach 2:
The patent introduces a structured report result format as an intermediary between the UE and the network device. This standardized report structure acts as a mediator that organizes complex information in a systematic way, making it easier for the network device to parse and process the information without requiring complex ad-hoc processing logic.
2Measurement precision
If the report result includes detailed network slice identifiers and cell information, then the network can accurately adjust network slices, but the information processing time and overhead increase
Solution Approach 1:
The patent applies preliminary action by having the UE prepare and send the complete report result including all necessary network slice identification information and cell information in advance. This allows the network device to receive organized, pre-processed information that requires minimal additional processing time, as the UE has already structured the data according to the required format before transmission.
Solution Approach 2:
The patent changes the parameter structure of the report by organizing information into standardized fields with specific formats. By defining clear parameter structures for cell identification, network slice identification, and measurement information, the network device can efficiently parse and process the data using predetermined processing logic, reducing processing time despite the detailed information content.
3Adaptability or versatility
If multiple network slices are deployed in different cells, then service flexibility is improved, but the difficulty of effective report result transmission increases
Solution Approach 1:
The patent creates a universal report result format that can handle multiple network slices deployed across different cells. The standardized structure accommodates various cell identification types, network slice identification types, and measurement information formats, making the reporting mechanism universally applicable regardless of the specific network slice deployment configuration or the number of cells involved.
Data Source
AI summary
A terminal device generates a report result including at least one of a logged minimization of drive tests report, an RLF report, and an RACH report. The logged minimization of drive tests report includes an identifier of a candidate access cell, information indicating whether the candidate access cell supports a network slice service initiated by the terminal device, location information of the terminal device where the terminal device receives a system message of the candidate access cell, and a network slice identifier of the network slice service initiated by the terminal device. The RLF report includes an identifier of a cell in which a radio link failure occurs after the terminal device accesses the cell and the network slice identifier corresponding to the network slice service in which the radio link failure occurs on the terminal device. The RACH report includes an identifier of a cell accessed by the terminal device and the network slice identifier. The terminal device sends the report result to a radio access network device to which a serving cell belongs.