UE Measurement Capability Signaling for Connected-State Satellite Positioning
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Solution Overview
Problem
User equipment (UE) in wireless communication systems can only measure satellite positioning information in the RRC idle state, leading to interruptions and excessive delays when switching to and from the RRC connected state for measurements, impacting network efficiency and performance.
Innovation Solution
UEs transmit measurement capability information indicating support for satellite positioning in the RRC connected state, allowing network devices to configure measurement gaps or discontinuous reception to perform GNSS measurements without transitioning to idle state, thereby improving resource utilization and network performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If UE measures satellite positioning information only in RRC idle state, then measurement capability is maintained, but network efficiency deteriorates due to frequent state transitions and interruptions
Solution Approach 1:
The patent applies dynamics by enabling the UE to dynamically perform satellite positioning measurements in both RRC idle and RRC connected states. The network can configure measurement gaps for the UE to perform measurements while maintaining connected state, allowing flexible adaptation between states based on measurement requirements rather than being statically restricted to idle state only.
Solution Approach 2:
The patent changes the operational parameter of RRC state restriction by introducing capability indication parameters (supportedFeatures) that allow the UE to indicate support for measurements in connected state. The network then uses this information to adjust measurement configurations, changing the system behavior from mandatory idle-state-only measurements to flexible state-dependent measurements based on capability parameters.
2Reliability
If UE transitions to RRC idle state for satellite measurements, then measurement capability is preserved, but time consumption increases due to state switching delays
Solution Approach 1:
The patent applies preliminary action by having the UE pre-indicate its measurement capabilities (including support for connected-state measurements) to the network before actual measurements are needed. The network then uses this advance information to configure appropriate measurement gaps and parameters, so that when measurements are required, the UE can immediately perform them in connected state without needing to transition to idle state first.
3Productivity
If UE performs measurements in RRC connected state, then network efficiency improves, but device complexity increases due to additional capability management
Solution Approach 1:
The patent introduces capability indication parameters (supportedFeatures) as an intermediary mechanism between UE and network. These parameters serve as a standardized interface that conveys measurement capabilities from UE to network without requiring complex direct negotiation. The network uses these intermediate parameters to automatically determine appropriate measurement configurations, reducing the complexity burden on both UE and network by providing a clear capability-language for measurement support.
Data Source
AI summary
A method for user equipment (UE) measurement capability transmission. The method includes: sending UE measurement capability information to a network device, in which the UE measurement capability information is configured for indicating whether a first capability is supported, and the first capability is: measuring satellite positioning information in a radio resource control (RRC) connected state.