V2X Edge Node Access Using Residence Time for Reliable Handover
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Solution Overview
Problem
In vehicle-to-everything (V2X) communication scenarios, the limited coverage of roadside units (RSUs) leads to frequent switching of edge computing nodes, causing untimely data transmission and potential data loss due to the user equipment not being able to send or receive data effectively.
Innovation Solution
A method for selecting and accessing hierarchical edge computing nodes based on residence parameters and load balancing, using X2 interfaces for communication between nodes, and adjusting access conditions to optimize data exchange, ensuring timely data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the user equipment is fixed to the RSU with limited coverage, then the data transmission can be established, but frequent switching occurs affecting data exchange reliability
Solution Approach 1:
The patent applies preliminary action by establishing a target cell before the user equipment actually needs to switch. The network side device determines a target cell in advance based on the user equipment's current cell information and movement trajectory, so that when switching is needed, the target cell is already prepared and can be accessed immediately, reducing switching time and maintaining data transmission reliability.
2Adaptability or versatility
If the RSU coverage range is limited to 200-300m, then the RSU can provide localized service, but frequent switching occurs when the vehicle moves
Solution Approach 1:
The patent introduces a network side device as an intermediary that coordinates between multiple RSUs. This intermediary determines optimal target cells and manages the switching process, allowing the user equipment to maintain continuous data exchange by seamlessly transitioning between RSUs without interruption, thus preserving both localization service and data exchange efficiency.
3Speed
If the user equipment moves quickly through the RSU coverage area, then the residence time is short, but data transmission may be interrupted
Solution Approach 1:
The patent applies preliminary action by pre-determining the target cell before the user equipment exits the current coverage area. The network side device calculates the optimal target cell in advance based on the user equipment's current position and movement characteristics, ensuring that data transmission can continue without interruption even when the vehicle moves quickly through the coverage area.
Solution Approach 2:
The patent implements feedback by continuously monitoring the user equipment's residence time and movement status. Based on this feedback, the network side device dynamically adjusts the target cell determination and switching timing to optimize data transmission continuity, ensuring that the switching action is triggered at the optimal moment to maintain reliability despite high vehicle speeds.
Data Source
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AI summary
Embodiments of the present application disclose an access processing method for user equipment, a device, an electronic apparatus, and a computer storage medium. The method comprises: acquiring a residence parameter of a user equipment unit on a target edge computing node of a vehicle-to-everything system, the user equipment unit being disposed on a moving platform, the target edge computing node being a node at any network level in the vehicle-to-everything system, the residence parameter comprising an estimated residence duration of the user equipment unit having access to the target edge computing node and/or a message transmission frequency for the user equipment unit; and if the residence parameter meets an access condition of the target edge computing node, determining that the network level where the target edge computing node is located is an access level, such that the user equipment unit accesses, while moving along with the moving platform, a core network via any edge computing node of the access level.