Radio Capability Identifier Signaling for RACS Node Consistency
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Solution Overview
Problem
The mismatch between UE radio capability identifiers on the UE side and the network node side occurs when a UE moves between a network node not supporting RACS and a network node supporting RACS, leading to communication disruptions.
Innovation Solution
A method for transmitting a currently available radio capability identifier from the terminal device to the network node under specific conditions, ensuring consistency between UE and network node identifiers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a UE uses a radio capability identifier allocated by operator network or manufacturer, then signaling optimization is achieved, but identifier mismatch occurs when moving between RACS-supporting and non-RACS-supporting network nodes
Solution Approach 1:
The patent implements dynamic identifier management where the UE determines whether to send its radio capability identifier based on the target network node's RACS support status. When moving to a RACS-supporting node, the UE sends the identifier for optimization; when moving to a non-RACS node, the UE withholds the identifier to maintain compatibility, thus dynamically adapting to different network conditions
Solution Approach 2:
The patent changes the parameter of identifier transmission behavior based on network node capabilities. The UE modifies its signaling behavior (whether to include the radio capability identifier) according to the target network node's RACS support status, transforming a static identifier usage into a conditional parameter that adapts to network requirements
2Reliability
If a UE sends radio capability identifier to all network nodes, then identifier consistency is maintained, but signaling overhead increases
Solution Approach 1:
The patent applies local quality by differentiating the treatment of radio capability identifier transmission based on the specific network node's characteristics. Instead of uniformly sending the identifier to all nodes, the UE selectively transmits the identifier only to RACS-supporting network nodes, optimizing signaling for each local network context
Data Source
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AI summary
The present disclosure provides a method for transmitting a radio capability identifier, a terminal device, and a network node. The method includes: sending a currently available first radio capability identifier of a terminal device to a network node in a case that a network node change-related condition is satisfied.