UE Radio Capability Signaling for Dynamic Update Tracking
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Solution Overview
Problem
Existing radio access capability signaling (RACS) techniques fail to accurately and efficiently describe changes in user equipment (UE) capabilities, leading to inefficiencies in wireless communication systems.
Innovation Solution
A manufacturer server creates and transmits UE radio capability IDs to networks, and networks maintain distinct IDs for UEs with and without updates, while UEs can register and update their capabilities dynamically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If existing RACS techniques are used to describe UE capability changes, then the signaling process is simple, but the accuracy and efficiency of describing capability changes deteriorates
Solution Approach 1:
The patent segments UE capability changes into distinct types: capability updates (enhancements) and capability reductions. This segmentation allows the system to handle different capability change scenarios with dedicated handling mechanisms, improving accuracy while managing complexity through structured classification.
Solution Approach 2:
The patent introduces dynamic capability handling where the network can push capability updates to UEs, and UEs can dynamically register or unregister capabilities. The system maintains dynamic capability lists and version numbers, allowing flexible and accurate description of capability changes without rigid signaling procedures.
2Measurement precision
If detailed capability tracking is implemented, then the accuracy of capability description improves, but the signaling overhead and processing complexity increases
Solution Approach 1:
The patent implements preliminary action by having the network store capability information in advance and use version numbers to track changes. The network can push capability updates before they are needed, and UEs can pre-register for capability changes, reducing real-time signaling overhead while maintaining accurate capability tracking.
Solution Approach 2:
The patent employs feedback mechanisms where UEs notify the network of capability changes, and the network responds with acknowledgment and updates. This feedback loop ensures accurate capability description while optimizing signaling time through efficient exchange of capability information between network and device.
3Adaptability or versatility
If multiple capability versions are maintained, then the adaptability of the system improves, but the complexity of managing capability versions increases
Solution Approach 1:
The patent uses parameter changes through version numbers to manage capability versions. Instead of maintaining complex versioning structures, the system uses version numbers (e.g., version 1, version 2) to represent different capability sets. This parameter-based approach improves adaptability to new capabilities while simplifying version management through numeric identifiers.
Solution Approach 2:
The patent creates a universal capability management framework that handles multiple capability types and versions through a single standardized approach. The network function and UE both use the same capability list structure and version number mechanism, providing multi-functionality across different capability scenarios while reducing overall system complexity.
Data Source
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AI summary
Embodiments are presented herein of apparatuses, systems, and methods for a user equipment device (UE), manufacturer server, and/or cellular network to perform radio capability signaling. A new type of UE radio capability identifier is provided which may allow a network to distinguish between similar UEs that have or have not implemented a capability update. In order to perform a forced capability update, a manufacturer may issue information about the update to a cellular network (and receive acknowledgement of the information) prior to pushing the update to UEs. In response to an unforced capability update, a cellular network may maintain multiple UE radio capability identifiers for similar UEs which have or have not implemented the update. A UE radio capability identifier may be adjusted dynamically in response to temporary changes in the UE's capability.