UE Signaling Temporary Service Changes for RedCap Connectivity
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Solution Overview
Problem
Reduced capability (RedCap) devices, such as video surveillance cameras, experience temporary interruptions in wireless connectivity due to deployment or operational changes, leading to unnecessary termination of connections and resource consumption in wireless networks, as base stations cannot distinguish between temporary service changes and true out-of-service conditions.
Innovation Solution
User Equipment (UE) signals a base station about impending temporary changes in service availability, allowing the base station to maintain communication links and provide instructions for operations during these changes, including suspending radio resource management and entering an idle state, through messages indicating immediate, future, or scheduled changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the base station terminates the connection when service interruption is detected, then the network can recover from false out-of-service conditions, but the connection is unnecessarily terminated during temporary service changes
Solution Approach 1:
The UE performs preliminary action by transmitting a service availability indication message to the base station before the temporary service change occurs. This advance notification allows the base station to anticipate the service interruption and avoid unnecessary connection termination, thus maintaining connection continuity while ensuring reliable service management.
2Productivity
If the base station maintains the connection during service interruption, then connection continuity is preserved, but network resources are consumed unnecessarily
Solution Approach 1:
The base station performs preliminary action by receiving the service availability indication message in advance and proactively suspending radio resource management functions before the temporary service change occurs. This allows the network to maintain the logical connection for continuity while releasing physical resources that would otherwise be consumed unnecessarily during the service interruption.
Solution Approach 2:
The system dynamically adjusts resource allocation based on the service availability status. The base station transitions the UE to an idle state during temporary service changes, dynamically releasing radio resources while maintaining the logical connection. This dynamic resource management preserves connection continuity while minimizing network resource consumption during periods when the UE cannot communicate.
3Reliability
If the UE repeats connection procedures after service interruption, then the connection can be reestablished, but time and power are consumed
Solution Approach 1:
The UE performs preliminary action by notifying the base station of the upcoming temporary service change before it occurs. This advance notification allows the base station to maintain the connection context and prepare for the service interruption, eliminating the need for the UE to repeat time-consuming connection procedures after the interruption. The connection can be quickly resumed without full reestablishment, saving both time and power.
Data Source
AI summary
Embodiments include systems and methods for UE signaling a network regarding customized ringing signal (CRS) capability and use of such information by the network. Various embodiments may receiving from the network an INVITE message notifying the UE of an incoming call, determining whether the INVITE message indicates that the network provides CRS service if the UE supports a CRS function, and including an indication in a response to the INVITE that the UE supports the CRS function in response to determining that the INVITE message includes an alert information header field indicating that the network provides CRS service. Various embodiments include a network computing device receiving such information and performing negotiations for CRS service with the UE only if the UE indicates CRS functional capability.