V2X Message Transmission via Local BM-SC Bypass
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current 3GPP systems experience significant transmission delays in V2X service data, which are not sufficient to meet the real-time performance requirements of Vehicle-to-Everything (V2X) communication, affecting the efficiency and safety of intelligent traffic and transportation systems.
Innovation Solution
The method involves the base station directly transmitting V2X messages to a local Broadcast Multicast Service Center (BM-SC) without passing through the core network, and the local BM-SC sending these messages back to the base station on a Multimedia Broadcast Multicast Service (MBMS) bearer, eliminating the need for bearer selection and core network transmission delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data is transmitted through the core network in the current 3GPP system, then the transmission path is standardized and reliable, but the transmission delay increases significantly
Solution Approach 1:
The patent extracts the V2X message transmission path from the core network, creating a direct local transmission route between the base station and BM-SC. This separation allows V2X messages to bypass the core network's complex routing and processing, achieving low-latency transmission while maintaining core network connectivity for other services.
Solution Approach 2:
The patent introduces a local BM-SC as an intermediary entity deployed at the base station side. This intermediary handles V2X message transmission locally, acting as a mediator between the base station and potential remote BM-SC, thereby eliminating the need for core network traversal while maintaining standardized interfaces.
2Speed
If bearer selection is performed for V2X message transmission, then the transmission path can be optimized, but the bearer selection process introduces additional transmission delay
Solution Approach 1:
The patent establishes V2X bearers in advance during connection setup, so that when V2X messages need to be transmitted, the appropriate bearer is already configured and ready for immediate use. This preliminary configuration eliminates the need for real-time bearer selection, thereby removing the selection delay while maintaining optimized transmission paths.
Data Source
Figure 1~2
Figure 2a
Figure 3~4
AI summary
A V2X message transmission method and a related network element are provided. The method includes: receiving, by a base station, a V2X message sent by user equipment UE on a vehicle-to-everything V2X bearer, where the V2X bearer is a bearer used to transmit only the V2X message between the UE and the base station; and sending, by the base station, the V2X message to a local broadcast multicast service center BM-SC. Technical solutions in embodiments of the present invention reduce a transmission delay of the V2X message.