UE V2X Message Parsing for PC5 and Uu Protocol Routing
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Solution Overview
Problem
Existing wireless communication systems face challenges in accurately processing and generating LTE-V2X PC5-related and LTE-V2X Uu interface-related packets, leading to incorrect transmission of TCP/IP packets via the GeoNetworking protocol.
Innovation Solution
The proposed method involves a user equipment (UE) receiving a V2X-related packet from another UE or a base station, parsing the packet to determine whether it is an LTE-V2X PC5-related or LTE-V2X Uu interface-related packet, and processing it accordingly using header information, with the option to transmit it through a GeoNetworking protocol or Transmission Control Protocol (TCP) based on the network layer's determination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the GeoNetworking protocol is used to transmit V2X packets without distinguishing between PC5 and Uu interface packets, then the transmission process is simplified, but incorrect transmission of TCP/IP packets occurs leading to processing errors
Solution Approach 1:
The patent segments the V2X packet transmission process by introducing distinct processing paths for PC5 and Uu interface packets. The network layer divides packets based on their origin interface type, routing PC5 packets through GeoNetworking protocol and Uu packets through TCP/IP protocol separately. This segmentation prevents mixing of different packet types and ensures each packet is transmitted through the appropriate protocol path, resolving the contradiction between simplified transmission and accurate delivery.
2Device complexity
If V2X packets are processed without interface type identification, then the processing logic is reduced, but the system cannot determine the correct protocol path leading to transmission errors
Solution Approach 1:
The patent applies preliminary action by identifying and marking the interface type (PC5 or Uu) of each V2X packet at the point of reception, before the packet enters the main processing flow. This early identification allows subsequent processing stages to immediately route packets through the correct protocol path without requiring complex analysis later in the processing chain, thus maintaining low overall complexity while ensuring accurate packet type identification.
Data Source
AI summary
One embodiment provides an operation method of a first UE in a wireless communication system, the method comprising steps in which a first UE receives a V2X-related packet from either a second UE or a base station; and first UE acquires a V2X-related message on the basis of the parsing of the V2X-related packet, wherein the V2X-related packet includes header information for indicating whether the V2X related packet is a LTE-V2X PC5-related packet or a LTE-V2X Uu-interface-related packet.