UE Capability Signaling for Non-Terrestrial Network Configuration
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing and exchanging user equipment (UE) capability information for non-terrestrial networking, particularly in scenarios involving satellite and airborne nodes, which affect the reliability and efficiency of vehicular communications such as V2X services.
Innovation Solution
The system enables the exchange of UE capability information through a PCS interface, supporting sidelink communication and V2X services, with mechanisms for unicast, groupcast, and broadcast transmission modes, and the use of Layer-2 IDs for identifying communication links, ensuring efficient UE capability exchange and AS layer configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If UE capability information exchange mechanisms are established for non-terrestrial networking, then the adaptability and versatility of wireless communication systems are improved, but the device complexity and information management burden increase
Solution Approach 1:
The UE capability information is segmented into multiple information elements, each representing specific capability attributes. This segmentation allows the system to handle complex capability data in manageable units, enabling flexible combination and configuration for different non-terrestrial networking scenarios without overwhelming the device complexity
Solution Approach 2:
The capability information exchange mechanism is designed with universal structures that can accommodate multiple radio access technologies and non-terrestrial networking scenarios. The information elements and containers are defined to support various communication modes (unicast, groupcast, broadcast) and network types, providing multi-functionality that improves adaptability while maintaining standardized processing procedures
2Reliability
If comprehensive UE capability information is exchanged for non-terrestrial networking support, then the reliability of vehicular communications is improved, but the loss of time and information management overhead increase
Solution Approach 1:
UE capability information is exchanged and configured in advance before actual non-terrestrial networking operations begin. The network receives and processes capability information elements during initial connection establishment, allowing the system to prepare appropriate configurations and parameters beforehand, ensuring reliable communication when the UE actually accesses non-terrestrial networks without time-critical processing delays
Solution Approach 2:
The patent introduces standardized information elements and container structures as intermediaries between the UE and the network for capability information exchange. These intermediaries facilitate structured, efficient data transmission and processing, reducing the time and overhead associated with managing comprehensive capability information by providing predefined templates and organized data formats
Data Source
AI summary
A system, method and apparatus for non-terrestrial communications is provided. A user equipment (UE) transmits a capability information message including a plurality of information elements. The plurality of information element include an indication of whether the UE supports a non-terrestrial network communication channel and one or more inter-radio access technology (RAT) parameters associated with the non-terrestrial network communication channel. The UE receives, in response to transmission of the plurality of information elements comprising the indication and the one or more inter-RAT parameters associated with the non-terrestrial network communication channel, one or more radio resource control (RRC) messages comprising configuration parameters associated with the non-terrestrial network communication channel. The UE facilitates the non-terrestrial network communication channel for communications based on the received configuration parameters.