Sidelink Positioning Priority for In-Device Resource Conflicts
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Solution Overview
Problem
Existing wireless communication systems lack efficient methods for resolving conflicts between sidelink positioning operations and other sidelink or non-sidelink operations in user equipment (UEs), leading to in-device resource allocation challenges.
Innovation Solution
Assigning priority values for sidelink positioning operations and using these values to select and reserve resources for sidelink positioning, thereby resolving conflicts through Layer 1 and/or Layer 2 control operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If priority values are assigned to sidelink positioning operations to resolve resource conflicts, then resource allocation efficiency is improved, but device complexity increases due to additional priority management mechanisms
Solution Approach 1:
The patent applies parameter changes by introducing priority values as a new parameter to characterize sidelink positioning operations. This allows the system to differentiate and manage multiple positioning operations with different importance levels, enabling efficient resource allocation through priority-based scheduling without requiring complex conflict resolution algorithms
Solution Approach 2:
The patent implements preliminary action by pre-assigning priority values to sidelink positioning operations before resource allocation occurs. This advance classification enables the UE to proactively manage resource conflicts by selecting resources based on predetermined priority levels, avoiding the need for complex real-time conflict resolution mechanisms
2Measurement precision
If resources are reserved for sidelink positioning operations using Layer 1 and/or Layer 2 control operations, then positioning accuracy is improved, but communication overhead increases
Solution Approach 1:
The patent applies universality by designing control operations that serve multiple functions: Layer 1 and Layer 2 control operations not only reserve resources for positioning but also convey priority information and coordinate between multiple UEs. This multi-functionality reduces the need for separate dedicated signaling messages, thereby limiting the increase in communication overhead while maintaining positioning accuracy
3Reliability
If multiple sidelink positioning operations are supported simultaneously, then positioning reliability is improved, but resource allocation complexity increases
Solution Approach 1:
The patent applies segmentation by dividing sidelink positioning operations into distinct priority groups. This segmentation allows the UE to manage multiple positioning operations by treating each priority level as a separate resource pool, simplifying the allocation process through hierarchical management rather than handling all operations uniformly, thereby reducing overall resource allocation complexity while supporting multiple simultaneous operations
Data Source
AI summary
Sidelink (SL) positioning of user equipments (UEs) is supported by assigning priority values to SL positioning operations, e.g., transmission or reception of SL positioning reference signals (PRS). The priority value, for example, may be (pre-)configured or provided to the physical (PHY) layer from higher layers. The UE selects resources for the SL positioning operations based on at least the priority value. The UE may reserve resources for the SL positioning operations, for example, using Layer 1 (L1) and/or Layer 2 (L2) control operations or by transmitting an indication that other UEs are to avoid using the resources. The priority values for the SL positioning operations may be used to resolve in-device conflicts, such as when the SL positioning operations conflict with other sidelink or non-sidelink operations.