Sidelink Bypass Interface for Low-Latency Uu-to-V2X Message Relay
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Solution Overview
Problem
Existing wireless communication systems face challenges in converting messages received from a Uu interface to V2X interface without involving the application layer, which typically analyzes and extracts data from external messages.
Innovation Solution
A method and device for transmitting messages using a bypass interface that converts messages from a Uu interface to a V2X interface without involving the application layer, utilizing channel information and transmission parameters to facilitate direct communication between user equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If messages are converted and transmitted through the application layer, then message processing is comprehensive and accurate, but processing complexity and power consumption increase
Solution Approach 1:
The patent segments the message processing path into two types: standard messages that go through the application layer for comprehensive processing, and time-sensitive messages (CAM, DENM, BSM) that use a bypass interface for direct transmission. This segmentation allows accurate processing of general messages while enabling fast processing of critical messages through the simplified bypass path.
Solution Approach 2:
The bypass interface acts as an intermediary mechanism that enables direct message transmission between the Uu interface and V2X interface, circumventing the application layer for specific message types. This intermediary path maintains message accuracy while reducing processing complexity and power consumption for time-sensitive communications.
2Reliability
If messages are transmitted through the application layer, then message processing is thorough, but power consumption increases
Solution Approach 1:
The patent divides message transmission into two energy-consuming paths: the standard application layer path for non-critical messages, and the bypass interface path for time-sensitive messages (CAM, DENM, BSM). This segmentation ensures reliable transmission for general messages while minimizing power consumption for critical communications that require rapid processing.
Solution Approach 2:
The system pre-configures the bypass interface with necessary transmission parameters and protocols before actual message transmission occurs. This preliminary setup allows time-sensitive messages to be transmitted immediately without requiring full application layer processing, thereby reducing power consumption while maintaining transmission reliability.
3Productivity
If a bypass interface is used for message transmission, then processing speed increases, but message conversion complexity must be managed
Solution Approach 1:
The bypass interface serves as a specialized intermediary that handles the conversion between Uu interface messages and V2X interface messages (CAM, DENM, BSM). This dedicated conversion mechanism increases transmission speed for time-sensitive messages while managing conversion complexity through protocol-specific optimization rather than general-purpose application layer processing.
Data Source
AI summary
According to various embodiments, disclosed are a method for transmitting a first message by a first device in a wireless communication system supporting sidelink, and a device therefor. Disclosed are the method and the device for same, the method comprising the steps of: receiving a first request message for requesting transmission of the first message on the basis of a bypass interface; transmitting a response message for acknowledging transmission of the first message; and transmitting a second message, which has been received from the network, as the first message on the basis of the bypass interface, wherein the bypass interface is an interface for transmitting the second message, which has been received through a first interface, as the first message through a second interface without involvement of an application layer of the first device, and the response message includes channel information related to the second interface.