Network-Controlled UE Radio Capability Disabling for Lower Latency
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Solution Overview
Problem
User equipment (UE) may autonomously attempt to communicate using restricted radio capabilities, leading to increased latency and power loss due to network rejections.
Innovation Solution
A network-controlled mechanism where the network identifies restricted radio capabilities based on UE subscription information and sends a modification indication to the UE, which disables these capabilities, allowing communication only through non-restricted ones.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the UE autonomously attempts to communicate using multiple radio capabilities, then the UE can maintain communication flexibility and support multiple networks, but the UE experiences increased latency and power consumption due to network rejections
Solution Approach 1:
The network performs preliminary action by identifying and filtering restricted radio capabilities from the UE's supported capabilities before the UE attempts communication. The network sends a capability modification indication to the UE in advance, allowing the UE to proactively disable restricted capabilities and avoid unnecessary communication attempts, thereby reducing latency while maintaining flexibility with non-restricted capabilities.
2Adaptability or versatility
If the UE autonomously attempts to communicate using multiple radio capabilities, then the UE can maintain communication flexibility, but the UE experiences increased power consumption due to network rejections
Solution Approach 1:
The network sends a capability modification indication to the UE in advance, enabling the UE to disable restricted radio capabilities before attempting communication. This preliminary action prevents wasted power expenditure on communication attempts that would be rejected by the network, while the UE retains flexibility to use non-restricted capabilities.
3Productivity
If the network filters restricted radio capabilities from the UE's supported capabilities, then the UE can communicate efficiently without rejections, but the system requires additional signaling overhead for capability modification indication
Solution Approach 1:
The network extracts only the restricted radio capabilities from the UE's full capability set and sends a focused capability modification indication to the UE. This approach maintains communication efficiency by preventing rejections while minimizing signaling overhead by transmitting only the necessary restriction information rather than the entire capability set.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. To communicate using non-restricted radio capabilities, a user equipment (UE) may transmit a UE capability message to a network (e.g., via a base station) that indicates a set of radio capabilities that the UE may use to communicate. The network may identify subscription information for the UE and may determine one or more restricted radio capabilities of the set of radio capabilities based on the subscription information for the UE. The network may transmit a message to the UE that includes a radio capability modification indication indicating the one or more restricted radio capabilities and a UE radio capability identifier corresponding to the subset of radio capabilities of the set of radio capabilities that are not restricted. The UE may receive the message, identify the restricted radio capabilities, and communicate with the network using the subset of non-restricted radio capabilities.