Sidelink Connection Establishment for V2X Emergency Data
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Solution Overview
Problem
Current wireless communication systems face challenges in establishing efficient sidelink connections for V2X communication, particularly in emergency situations where rapid data exchange is critical, due to the need for Layer-2 ID association before transmission, which can introduce latency and hinder timely emergency data transfer.
Innovation Solution
The proposed solution involves transmitting emergency data within a direct request or response message during the connection establishment process, allowing for immediate data transfer without prior Layer-2 ID association, and using pre-configured Layer-2 IDs for sidelink communication to facilitate rapid connection setup.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If Layer-2 ID association is required before data transmission, then connection reliability is improved, but transmission latency increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring Layer-2 IDs for sidelink communication before actual data transmission occurs. This allows the connection establishment to be prepared in advance, enabling faster data exchange during emergency situations without requiring real-time ID association, thus reducing latency while maintaining connection reliability
Solution Approach 2:
The patent segments the connection establishment process into separate phases: pre-configuration of Layer-2 IDs and actual data transmission. This segmentation allows the reliability aspect (Layer-2 ID association) to be handled separately from the timing-critical data transmission, enabling both reliable connections and low latency by decoupling these functions
2Stability of the object's composition
If traditional connection establishment procedure is used, then connection stability is improved, but data transmission speed decreases
Solution Approach 1:
The patent uses preliminary action by pre-establishing Layer-2 ID configurations and communication parameters before actual data transmission. This preparation maintains connection stability through proper ID association while enabling rapid data exchange during emergency situations, thus improving data transmission speed without sacrificing connection stability
Solution Approach 2:
The patent applies dynamics by making the connection establishment process adaptable - the pre-configuration of Layer-2 IDs allows the system to quickly transition from connection setup to data transmission based on emergency situation requirements, enabling dynamic adjustment between stability and speed according to operational needs
Data Source
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AI summary
A method and apparatus are disclosed from the perspective of a first device. Preferably, the method includes the first device broadcasting a first message, wherein the first message is used to request the unicast link establishment, and the first message includes an upper layer identifier of the first device (1105). The method also includes the first device receiving a second message from a second device for completing the unicast link establishment, wherein the second message includes an upper layer identifier of the second device (1110).