CSI-2 Packet Encapsulation for Automated Driving Data Transmission
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Solution Overview
Problem
There is a need for a communication apparatus and system that can efficiently transmit various types of packets conforming to the CSI-2 standards at high speeds, as current technologies lack a standardized application format for handling CSI-2 data in automated driving systems.
Innovation Solution
The proposed solution involves a communication apparatus with a packet generation unit that encapsulates CSI-2 packets into application packets without distinguishing their type or structure, and a communication unit that transmits these application packets. The application packets have a standardized format regardless of the packet type or structure, allowing for efficient transmission of legacy, SEP, and FSED CSI-2 packets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different types of CSI-2 packets (legacy, SEP, FSED) with different structures are transmitted using standardized formats, then adaptability to various packet types is improved, but device complexity increases due to the need to handle multiple packet formats
Solution Approach 1:
The patent applies universality by designing a single standardized application packet format that can accommodate multiple types of CSI-2 packets (legacy, SEP, and FSED). The application packet structure includes fields such as packet type identification, length, and payload that can represent different packet types without requiring separate handling mechanisms for each type, thereby reducing device complexity while maintaining adaptability
2Measurement precision
If packet type and structure distinctions are maintained during transmission, then measurement precision of packet characteristics is improved, but productivity decreases due to the need for complex packet processing and classification
Solution Approach 1:
The patent applies parameter changes by encoding packet type and structure information into specific fields within the standardized application packet format. Instead of requiring external classification and processing of different packet types, the packet type identification parameter within the application packet allows the receiver to efficiently identify and process packets based on their encoded parameters, thereby maintaining measurement precision while improving productivity through streamlined processing
3Ease of operation
If a standardized application packet format is used for all CSI-2 packet types, then ease of operation is improved, but information loss occurs due to the need to generalize different packet structures
Solution Approach 1:
The patent applies segmentation by dividing the application packet into distinct fields that preserve packet-specific information. The standardized format includes segmented components such as packet type identification fields, length fields, and payload fields that can represent different CSI-2 packet types. This segmentation allows the standardized format to maintain ease of operation while preventing information loss by dedicating specific segments to preserve the unique characteristics of each packet type
Data Source
AI summary
Efficient high speed transmission of different types of packets having different structures conforming to CSI-2 standards of MIPI is disclosed. In one example, a communication apparatus includes a packet generation unit configured to encapsulate a packet conforming to camera serial interface 2 (CSI-2) standards defined by camera service extensions (CSE) standards of Mobile Industry Processor Interface (MIPI) Alliance without distinguishing a type and a structure of the packet to generate an application packet, and a communication unit configured to transmit the application packet to a communication partner apparatus.