RRC Message Transmission via RAN Slice Isolation
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Solution Overview
Problem
In 5G NR systems, RRC messages are affected by cell loads and channel conditions, leading to interference between network slices and poor isolation, as existing methods do not effectively manage resource allocation across different RAN slices.
Innovation Solution
A method and apparatus for transmitting RRC messages by performing resource configuration based on buffer reports from terminals, allowing them to determine and transmit through specific RAN slices, thereby isolating messages and improving transmission quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If RRC messages are transmitted through a base station that establishes a connection with a terminal, then the RRC message can be transmitted using existing connection mechanisms, but the RRC message is affected by loads and channels of an entire cell and thereby isolation between slices is not achieved
Solution Approach 1:
The patent segments the RRC message transmission by introducing slice-specific transmission paths. Instead of using a single base station connection for all slices, the RRC message is transmitted through specific network nodes (AMF or SMF) that correspond to particular network slices. This segmentation isolates different slices from each other, preventing interference while maintaining dedicated resource allocation for each slice.
2Reliability
If RRC messages are transmitted through the entire cell infrastructure, then existing cell resources can be utilized, but cell loads and channel conditions affect all slices and interference between slices occurs
Solution Approach 1:
The patent applies local quality by assigning different transmission paths and resource allocation mechanisms to different network slices based on their specific requirements. Each slice receives customized resource allocation through its dedicated control node (AMF or SMF), allowing optimization of transmission quality for each slice individually while maintaining overall system efficiency through targeted resource usage.
Data Source
AI summary
A method for transmitting an RRC message includes: a target buffer report corresponding to a target SRB reported by a terminal is received, where the target SRB is an SRB for transmitting a target RRC message to be transmitted by the terminal; resource configuration is performed for the target SRB according to the target buffer report to acquire a resource configuration result; and the resource configuration result is transmitted to the terminal, so that the terminal determines a target RAN slice corresponding to the target SRB from among a plurality of RAN slices pre-configured for the terminal according to the resource configuration result, and transmits the target RRC message through the target RAN slice. As such, an RRC message may be transmitted through a plurality of RAN slices.