Sidelink Positioning Priority Control for Conflict-Free UE Resources
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Solution Overview
Problem
Current solutions for UE-based resource allocation in sidelink positioning face a resource preemption conflict problem when the UE autonomously allocates resources for transmitting positioning information.
Innovation Solution
A network device provides priority information to the UE for resource allocation based on the UE's positioning service requirements, allowing the UE to select or allocate resources accordingly for sidelink positioning reference signals and protocol signaling, thereby avoiding conflicts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the UE autonomously allocates resources for transmitting positioning information, then the UE can independently manage its positioning data transmission, but resource preemption conflicts occur between different UEs
Solution Approach 1:
The network device acts as an intermediary between UEs and the resource allocation system. It receives positioning service requirements from UEs, determines priorities, and allocates resources accordingly. This mediator approach resolves the conflict by centralizing resource management while still allowing UE-specific service requirements to be considered.
Solution Approach 2:
The patent introduces priority as a new parameter for resource allocation. By assigning different priority levels to different positioning services based on their requirements, the system can resolve conflicts between multiple UEs seeking resources. Higher priority services get allocated resources first, preventing preemption conflicts.
2Reliability
If the network device allocates resources to the UE, then resource preemption conflicts are avoided, but the network device increases control complexity
Solution Approach 1:
The network device performs preliminary actions by determining priority levels before resource allocation occurs. It evaluates positioning service requirements in advance and assigns priorities, which then guide the resource allocation process. This preliminary classification simplifies the actual allocation by providing clear decision criteria.
Solution Approach 2:
While the network device manages resource allocation, the UE still participates by providing its positioning service requirements. The system leverages UE-initiated service requests to drive the allocation process, reducing the burden on the network device to proactively manage all allocations without UE input.
3Productivity
If the UE autonomously allocates resources, then the allocation process is simple and fast, but positioning service requirements may not be adequately considered
Solution Approach 1:
The system implements feedback by having UEs report their positioning service requirements to the network device. The network device uses this feedback information to determine priorities and allocate resources accordingly. This feedback loop ensures that positioning service quality requirements are met while maintaining efficient resource allocation.
Data Source
AI summary
Embodiments of this application provide a communication method and a communication apparatus. The method is applied to a first network device. The method includes: receiving first information, where the first information indicates a requirement of a positioning service of a terminal device, and the requirement of the positioning service of the UE includes at least one of the following: location quality of service of the UE and quality of service of transmitting positioning data by the UE; and sending second information to the UE, where the second information is related to the first information, and the second information indicates a priority of the positioning service of the UE.