5G UE Capability Management via Feature Sets
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Solution Overview
Problem
The existing 5G communication systems face challenges in efficiently managing User Equipment (UE) capability information, particularly in Dual Connectivity (DC) scenarios, where the large amount of capability information does not fit in a single message, leading to increased signaling overhead and potential inconsistencies between capability containers.
Innovation Solution
The proposed solution involves the use of Feature Sets and Feature Set Combinations to efficiently manage UE capabilities in 5G systems. This includes the use of network control fields to avoid transferring unnecessary capabilities, indexing parameter value combinations to reduce redundancy, and ensuring consistent capability containers across different Radio Access Technologies (RATs) in DC mode.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If UE capability information is transferred for all bands and band combinations, then complete capability information is provided, but signaling overhead increases and message size exceeds limits
Solution Approach 1:
The patent extracts and transfers only the necessary subset of UE capability information rather than all capability data. The network can request specific bands or band combinations, and the UE provides only the relevant capability information for those requested configurations, eliminating unnecessary data transfer while maintaining completeness for operational needs
Solution Approach 2:
The patent segments UE capability information by band and band combination. Instead of transferring a single large capability message covering all possible configurations, the capability information is divided into multiple smaller messages organized by specific bands or band combinations, allowing selective transfer based on network requirements
2Measurement precision
If UE capabilities are signaled per band or per band combination, then capability accuracy is improved, but redundancy increases and message size grows
Solution Approach 1:
The patent creates feature sets that serve multiple bands simultaneously. A single feature set can be referenced by multiple bands or band combinations that share common capability characteristics, allowing the same capability information to be universally applied across different configurations without repetition. This multi-functional approach maintains accuracy while eliminating redundancy
Solution Approach 2:
The patent uses references and indices to point to shared capability information rather than duplicating actual capability data. When multiple bands or band combinations have identical or similar capabilities, the system creates a single feature set and uses references to point to it from multiple locations, avoiding data duplication while maintaining the ability to accurately describe capabilities for each specific configuration
3Adaptability or versatility
If capability containers are maintained separately for each RAT, then RAT-specific capabilities are preserved, but consistency between containers becomes difficult to maintain
Solution Approach 1:
The patent merges capability information across different Radio Access Technologies (RATs) by creating feature sets that can be shared between EUTRA, NR, and other RATs. Instead of maintaining completely separate capability containers for each RAT, the system combines common capability elements into shared feature sets that can be referenced by multiple RAT-specific containers, ensuring consistency while preserving RAT-specific characteristics
Solution Approach 2:
The patent implements consistency verification mechanisms where the network verifies that capability information across different RAT containers is consistent. When capability information is updated in one container, feedback mechanisms ensure corresponding updates or validations in related containers, maintaining stability and consistency across the multi-RAT capability structure
Data Source
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AI summary
The disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as long term evolution (LTE). Disclosed is a method of operating a telecommunication network, in communication with a User Equipment, UE, comprising the use of Feature Sets, FS, wherein the telecommunication network is operable in a Dual Connectivity, DC, mode to support a first Radio Access Technology, RAT, and a second RAT, comprising the step of: the UE providing a UE capability container including a list of supported Band Combinations, BCs, for which Carrier Aggregation, CA, is supported.