UE Radio Capability Signaling Using Network-Specific Identifiers
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Solution Overview
Problem
The increasing size of UE radio capability information in wireless communication systems, particularly in 5G NR, leads to reduced network efficiency and throughput due to the need for UEs to send all capabilities, regardless of previous transmissions, causing significant signaling overhead.
Innovation Solution
UEs determine a network type and send a capability identifier associated with a specific set of radio capabilities during registration, rather than the actual capabilities, using standardized, manufacturer-specific, or operator-specific identifiers to optimize signaling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If UEs send all radio capability information in every transmission, then the network has complete capability information, but signaling overhead increases and network efficiency decreases
Solution Approach 1:
The patent extracts only the essential capability identifier from the complete capability information set. Instead of transmitting all detailed capability parameters, the system transmits only a compact identifier that references pre-stored capability profiles in the network, dramatically reducing signaling overhead while preserving complete capability information availability.
Solution Approach 2:
The network performs preliminary action by pre-storing complete capability profiles and their corresponding identifiers in the database before actual communication occurs. This advance preparation allows the system to later retrieve complete capability information using only the compact identifier, eliminating the need to retransmit full capability data.
2Reliability
If UEs send complete capability information, then the network can make accurate routing decisions, but transmission time and network resources are consumed
Solution Approach 1:
The system creates a simplified copy (identifier) that represents the complete capability information. This identifier acts as a reference or pointer to the full capability profile stored in the network database, allowing accurate routing decisions to be made based on the compact identifier rather than requiring transmission of the complete capability data set.
3Adaptability or versatility
If UEs transmit detailed capability sets, then the network supports diverse device capabilities, but the size of capability signaling increases
Solution Approach 1:
The patent segments the capability information system into two distinct parts: (1) a compact identifier transmitted by the UE that categorizes the capability set, and (2) the complete capability profile stored in the network database. This segmentation allows diverse device capabilities to be supported while keeping the transmitted signaling data size minimal.
Solution Approach 2:
The system transitions from a one-dimensional approach (transmitting all capability data directly) to a two-dimensional approach where the transmitted identifier serves as a key that unlocks the complete capability information stored in another dimension (the network database). This dimensional transformation reduces signaling overhead while preserving full capability information.
Data Source
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AI summary
Techniques for optimizing user equipment radio capability signaling for wireless communications are described. In one technique, a type of network to access for communications is determined. A capability identifier(s) associated with a set(s) of user equipment (UE) radio capabilities is determined based, at least in part, on the type of network. The capability identifier(s) is sent to the network. Upon receiving an indication of the capability identifier(s), the set(s) of UE radio capabilities associated with the capability identifier(s) is identified and stored.