Steering UE Capability Reporting via Network Feature Filtering
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Solution Overview
Problem
Current wireless communication systems, particularly in 5G NR, face inefficiencies due to large message sizes when transmitting UE capability information, leading to increased processing times and storage burdens at both the UE and network nodes, as they report all features supported, regardless of network capabilities.
Innovation Solution
A method where the UE receives a message indicating the features supported by a network node and transmits a reduced message containing only the subset of features it supports, aligning with the network's capabilities, thereby optimizing message size and processing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the UE transmits all supported features regardless of network capabilities, then the UE capability information is complete, but the message size becomes large
Solution Approach 1:
The network node performs preliminary action by transmitting feature support information to the UE before the UE transmits its capability information. This allows the UE to pre-filter its capability report to include only relevant features, reducing message size while maintaining information completeness for the specific network context
Solution Approach 2:
The UE capability information is made locally optimized by including only the subset of features relevant to the specific network node's capabilities. Instead of a uniform complete capability report for all networks, the solution tailors the capability information to match the local network's feature support, reducing unnecessary data transmission
2Loss of information
If the UE transmits all supported features, then comprehensive capability information is provided, but processing time increases
Solution Approach 1:
The network node provides feature support information in advance, enabling the UE to perform preliminary filtering of its capability information. This reduces the processing time required at both the UE (to generate the message) and the network node (to process and store the information) while maintaining complete relevant capability information
Solution Approach 2:
The solution extracts only the relevant subset of UE capability information that corresponds to features supported by the network node. By removing unnecessary capability data from the transmission, both message size and processing time are reduced while the essential capability information remains intact
3Loss of information
If the UE reports all features, then full capability coverage is achieved, but storage burden increases
Solution Approach 1:
The UE capability information is optimized for local storage requirements by including only the subset of features relevant to the serving network node. This reduces the storage burden at both the UE (less data to manage) and the network node (less data to store), while maintaining full coverage of capabilities that are actually applicable to the network
Solution Approach 2:
By receiving feature support information from the network node in advance, the UE can preliminarily determine which capability information to retain and transmit, reducing unnecessary storage requirements while ensuring all relevant capabilities are preserved
Data Source
AI summary
A method of wireless communication at a UE is disclosed herein. The method includes receiving a first message including a first IE that indicates a set of first features supported by a first network node. The method includes transmitting, for the first network node, a second message including first UE capability information of the UE based on the first IE included in the first message, where the first UE capability information includes a subset of the set of first features supported by the first network node.