UE Mobility Indicator for No-Mobility Status Detection
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Solution Overview
Problem
Conventional methods for determining a user equipment's (UE) mobility status in mobile networks are delayed and inaccurate, especially in situations where mobility changes quickly, such as on busy freeways, due to reliance on historical data.
Innovation Solution
A method where a UE determines its own mobility status by receiving indicators from its power interface, location tracking subsystem, or accelerometer and transmits a no-mobility status to the network, allowing for timely and accurate updates, including charging status and movement information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If historical data is used to determine UE mobility status, then the network can track UE movement patterns, but the mobility status determination is delayed and inaccurate in quickly changing situations
Solution Approach 1:
The UE proactively determines its mobility status using local sensors (accelerometer, location tracking subsystem) and transmits this information to the network before the network would otherwise need to query it. This preliminary action by the UE eliminates the delay inherent in network-based historical data analysis and provides accurate real-time mobility status.
Solution Approach 2:
The patent introduces intermediate sensors (accelerometer, location tracking subsystem, power interface) as mediators between the UE's physical state and the network's mobility management system. These intermediaries provide direct measurements of mobility status, bypassing the need for the network to infer mobility from historical data, thereby improving both accuracy and timeliness.
2Adaptability or versatility
If the network over-provisions resources for high mobility UEs, then resource allocation can accommodate mobility changes, but network resources are wasted on UEs with low mobility
Solution Approach 1:
The patent implements dynamic resource allocation based on real-time mobility status reports from UEs. The network adjusts resource provisioning dynamically according to the actual mobility needs of each UE, rather than using static over-provisioning strategies. This allows the system to adapt resource allocation to actual conditions, improving flexibility while reducing waste on low-mobility UEs.
Solution Approach 2:
The UE provides feedback to the network about its mobility status through transmitted indications. This feedback loop enables the network to make informed decisions about resource allocation, adjusting provisioning based on actual UE mobility patterns rather than assuming high mobility for all UEs. The feedback mechanism eliminates the need for conservative over-provisioning.
3Reliability
If the UE frequently updates mobility status in stop-and-go situations, then the network receives timely information, but signaling overhead increases
Solution Approach 1:
The patent applies partial action by having the UE update mobility status selectively rather than continuously. The UE transmits mobility status indications based on actual changes in mobility conditions rather than sending updates at every possible opportunity. This selective updating maintains reliability by providing timely information when mobility status actually changes, while avoiding excessive signaling when the status remains stable.
Data Source
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AI summary
Methods and systems for determining a no-mobility status for a user equipment (UE) in a wireless network. The UE may receive an indicator related to mobility of the UE, and determine, from the received indicator, that the UE has a no-mobility status. The UE may transmit an indication of its no-mobility status to the wireless network. The no-mobility status may be used by the network to select a UE to serve as a UE-to-UE relay (UUR).