Radio Discovery Pattern Grouping for V2V Node Detection
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Solution Overview
Problem
Current communication systems face challenges in enhancing the flexibility and efficiency of discovery signal transmission and detection, particularly in Vehicle-to-Vehicle (V2V) networks, where network nodes need to rapidly and reliably discover each other, especially in scenarios where nodes are moving and not directly visible to each other.
Innovation Solution
The solution involves grouping discovery patterns into different spatial parameter-based groups and allocating specific discovery patterns to network nodes based on their spatial information, such as location and moving direction, to optimize radio resource usage and enable fast discovery between nodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If discovery patterns are transmitted using traditional methods, then all nodes can potentially discover each other, but the discovery time is extended and resource overlap increases
Solution Approach 1:
The patent segments discovery patterns into multiple groups, where each group is assigned to specific spatial parameters (location, moving direction). This segmentation enables nodes to discover each other faster by selecting appropriate groups based on their spatial relationships, rather than relying on random or universal pattern transmission.
Solution Approach 2:
The patent applies local quality by assigning different discovery patterns to different spatial regions and movement directions. Each node selects discovery patterns based on its local spatial context (position and moving direction), optimizing resource usage and reducing unnecessary transmissions while maintaining reliable discovery.
2Speed
If discovery patterns are transmitted frequently to ensure fast discovery, then discovery speed improves, but radio resource usage increases
Solution Approach 1:
The patent changes the parameters of discovery pattern transmission by introducing spatial parameter-based grouping. Instead of uniform frequent transmission, nodes transmit discovery patterns selectively based on their spatial context (location and moving direction), achieving fast discovery while optimizing radio resource usage.
3Device complexity
If all nodes use the same discovery pattern, then implementation is simplified, but resource overlap increases and discovery efficiency decreases
Solution Approach 1:
The patent segments discovery patterns into multiple groups associated with different spatial parameters. This segmentation increases discovery efficiency by reducing resource overlap, while the association rules (spatial parameter-based grouping) keep the implementation complexity manageable through systematic organization.
Solution Approach 2:
The patent implements local quality by assigning different discovery patterns to nodes based on their specific spatial context. This differentiation improves discovery efficiency and reduces resource overlap, while the structured approach (grouping by spatial parameters) maintains reasonable implementation complexity.
Data Source
Figure 1A~1B
Figure 2~3
Figure 4A~4B
AI summary
There is provided a method in a network element of a radio communication network, the method comprising: grouping, by the network element, a plurality of discovery patterns into at least two groups, wherein each discovery pattern comprises one or more discovery slots on radio resources for detecting discovery signals by a network node; associating at least one of the groups with a first spatial parameter and at least one other group with a second spatial parameter; and transmitting configuration information enabling a network node to utilize a discovery pattern belonging to a group associated with a spatial parameter that corresponds to spatial information of the network node.