Sidelink Communication Node Groups with Timing Reference Alignment
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Solution Overview
Problem
Existing sidelink communication technologies fail to ensure aligned transmission timing between nodes and cannot obtain transmission timing differences, which hampers effective positioning and group formation in wireless communication networks.
Innovation Solution
A system and method for establishing a group of anchor nodes, where one node serves as a timing reference and others as non-timing references, enabling measurement and adjustment of transmission timing differences to facilitate accurate positioning and group formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If sidelink communication is implemented without timing alignment mechanisms, then communication flexibility is improved, but positioning accuracy deteriorates
Solution Approach 1:
The system segments nodes into timing reference nodes and non-timing reference nodes within groups. Timing reference nodes maintain synchronized transmission timing while non-timing reference nodes operate independently, allowing positioning measurements to be performed on segments of the network that require timing alignment without constraining the entire network
Solution Approach 2:
The patent applies different timing characteristics to different nodes based on their roles. Timing reference nodes within each group maintain aligned transmission timing for accurate positioning measurements, while non-timing reference nodes can operate with independent timing. This local differentiation of timing quality enables positioning accuracy where needed while preserving overall communication flexibility
2Measurement precision
If transmission timing alignment is enforced across all nodes, then positioning accuracy is improved, but system complexity increases
Solution Approach 1:
The system divides the network into multiple groups, each with its own timing reference node. Within each group, timing alignment is enforced only among nodes that need to perform positioning measurements, while other groups can operate independently. This segmentation limits the complexity of timing management to local groups rather than requiring global coordination across all nodes
Solution Approach 2:
Timing reference nodes act as intermediaries that facilitate positioning measurements within their groups. These intermediary nodes maintain the timing alignment necessary for accurate positioning while non-timing reference nodes can operate independently, reducing the overall system complexity by distributing the timing coordination function to specific intermediary nodes rather than requiring all nodes to participate in global timing synchronization
3Measurement precision
If group-based timing reference structure is implemented, then positioning capability is improved, but communication protocol complexity increases
Solution Approach 1:
The protocol implements group-based timing references by segmenting nodes into groups with designated timing reference nodes. This segmentation allows positioning capabilities to be enhanced within groups while the communication protocol complexity is contained to group-level operations rather than requiring complex node-to-node coordination across the entire network
Solution Approach 2:
The timing reference node structure provides multi-functionality: timing reference nodes serve both as regular communication nodes and as positioning reference points for their groups. This universality allows the same node structure to fulfill both communication and positioning functions, reducing the need for separate dedicated positioning infrastructure and thereby limiting protocol complexity
Data Source
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AI summary
Embodiments of a system, device and method for providing group-related information are disclosed. In some embodiments, a first wireless communication device sends, to one or more second communication devices via a sidelink communication, a message including first information and second information. In some embodiments, the first information is related to the first wireless communication device, and the second information is related to the one or more second wireless communication devices. In some embodiments, the first wireless communication device is configured to serve as a timing reference node of a group, while the one or more second wireless communication devices are each configured to serve as a non-timing reference node of the group.