Sidelink Group Ranging for Wireless Positioning
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently configuring and performing positioning between grouped wireless devices, especially in scenarios requiring accurate location estimation without direct network coverage.
Innovation Solution
The proposed method involves a wireless device initiating a sidelink group ranging procedure, transmitting a ranging request to other devices, and calculating their positions based on received timing information, allowing for positioning even in partial or no network coverage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional network-based positioning methods are used, then positioning accuracy can be maintained, but positioning cannot be performed in areas without network coverage
Solution Approach 1:
The patent introduces wireless devices as intermediary nodes that perform positioning measurements and calculations autonomously using sidelink communications. These devices act as mediators between the positioning objective and the absence of network infrastructure, enabling positioning in coverage-free areas by locally executing ranging procedures and sharing position information within the device group.
2Measurement precision
If individual device positioning is performed separately, then positioning accuracy for each device is maintained, but signaling overhead and procedure complexity increase
Solution Approach 1:
The patent merges individual positioning procedures into a group-based sidelink positioning framework. Multiple devices form positioning groups where they collectively perform ranging measurements and share results. This combining approach maintains individual positioning accuracy while reducing overall system complexity through resource sharing and coordinated measurement procedures within the group.
Solution Approach 2:
The positioning procedure is designed to serve multiple devices simultaneously through group-based operations. The same sidelink resources and measurement procedures are universally applied across all group members, enabling one procedure to achieve positioning for multiple devices rather than requiring separate dedicated procedures for each device.
3Productivity
If group-based positioning is implemented, then resource efficiency improves, but positioning accuracy may be compromised compared to individual positioning
Solution Approach 1:
The patent segments devices into positioning groups based on spatial proximity and service requirements. This segmentation allows the system to apply group-based efficient procedures within each segment while maintaining accuracy through localized measurements. The segmentation enables resource efficiency at the group level without sacrificing individual device positioning precision within the segment.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enables efficient positioning of grouped wireless devices, improving accuracy and coverage, particularly in scenarios like vehicle platooning or emergency services where network coverage may be limited.
Implementation Method 1
The first wireless device transmits a ranging request to one or more second wireless devices and receives a ranging response, including timing information, from at least one of the second wireless devices. The first wireless device calculates a range for the at least one second wireless device in accordance with the timing information.
Data Source
AI summary
Systems and methods for configuring groupings of wireless devices and performing positioning and/or ranging between the grouped devices. Several wireless devices can be grouped together according to location, capabilities and/or measurements. A master node can be assigned to perform initiate a sidelink ranging procedure for the group. The master node can transmit ranging request(s) and receive ranging response(s) to calculate a range for one or more wireless devices in the group.