Sidelink Positioning Resource Management via Response Time Feedback
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Solution Overview
Problem
Existing positioning techniques in 5G wireless networks face challenges in efficiently managing response time for sidelink (SL) positioning sessions between User Equipments (UEs), which can impact the timely provision of positioning information.
Innovation Solution
The method involves sending a quality of service (QoS) profile from one UE to another, indicating the required response time for positioning information. The receiving UE then responds with an indication of whether it can meet this requirement, and based on this, the sending UE determines and sends resource pool parameters for the positioning session.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If resource pool parameters are adjusted to meet response time requirements, then positioning information can be provided within the specified time frame, but the complexity of resource management increases
Solution Approach 1:
The patent applies preliminary action by having the first UE send a QoS profile message to the second UE before the positioning session begins. This message includes the response time requirement, allowing the second UE to evaluate its capability in advance and prepare appropriate resource pool parameters. This advance preparation ensures that response time requirements can be met without requiring complex real-time adjustments during the positioning session.
Solution Approach 2:
The patent implements feedback by having the second UE send a capability indication message back to the first UE, informing whether it can meet the response time requirement. Based on this feedback, the first UE can determine and configure appropriate resource pool parameters. This feedback loop enables adaptive resource management that balances response time requirements with system complexity.
2Loss of time
If QoS profile with response time requirement is enforced, then positioning information timeliness is improved, but the signaling overhead between UEs increases
Solution Approach 1:
The patent extracts the response time requirement from the general QoS parameters and places it in a dedicated QoS profile message. This extraction allows the response time requirement to be clearly identified and handled separately, ensuring timeliness of positioning information while minimizing unnecessary signaling overhead by focusing only on the critical timing parameter rather than transmitting all QoS details.
Data Source
AI summary
In some implementations, a first user equipment (UE) may send a first message comprising a quality of service (QoS) profile to a second UE. The QoS profile may include a response time requirement for providing positioning information within the positioning session. The first UE may receive a second message from the second UE, the second message comprising an indication of whether the second UE can meet the response time requirement. The first UE may determine resource pool parameters for the positioning session. The resource pool parameters may be based at least in part on the indication of whether the second UE can meet the response time requirement. The first UE may send a third message comprising the resource pool parameters to the second UE.