RSU V2X Message Bundling for Signature Processing Delays

Solution Overview

Problem

Existing wireless communication systems face challenges in efficiently delivering Vehicle-to-Everything (V2X) service related information due to constrained signature processing capabilities and increased power consumption, particularly when large amounts of data need to be transmitted by a Road Side Unit (RSU), leading to undesirable transmission delays and system complexity.

Innovation Solution

A method and apparatus that integrate network-based V2X services with UE-to-UE direct communication by using a Road Side Unit (RSU) to collect and process multiple V2X service related information items as a single merged message, performing signature processing only when available, thereby reducing delays and power consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the RSU processes signature for each V2X service related information item individually, then security verification is ensured, but transmission delays increase and power consumption increases

Engineering Contradiction:

Improvesignature processing availabilityVSAvoidtransmission delay

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent merges multiple individual V2X service related information items into a single bundled message. Instead of processing signatures for each information item separately, the RSU bundles multiple items together and performs a single signature processing operation on the entire bundle, thereby reducing the frequency of signature processing while maintaining security verification.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The RSU performs preliminary bundling of V2X service related information items before signature processing. By pre-grouping multiple information items into a single message structure, the system prepares the data in advance for consolidated signature processing, reducing the number of separate signature operations needed and thereby reducing overall transmission delay.

Inventive Principle:

Principle #10Preliminary action

2Reliability

If the RSU processes signature for each V2X service related information item individually, then security verification is ensured, but power consumption increases

Engineering Contradiction:

Improvesignature processing availabilityVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent merges multiple individual V2X service related information items into a single bundled message. Instead of processing signatures for each information item separately, the RSU bundles multiple items together and performs a single signature processing operation on the entire bundle, thereby reducing the frequency of signature processing while maintaining security verification.

Inventive Principle:

Principle #5Merging (Combining)

3Adaptability or versatility

If the RSU delivers large amounts of V2X service related information to UEs, then service coverage is expanded, but signature processing capabilities become constrained

Engineering Contradiction:

Improveservice coverageVSAvoidsignature processing capability constraint

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges multiple individual V2X service related information items into a single bundled message. Instead of processing signatures for each information item separately, the RSU bundles multiple items together and performs a single signature processing operation on the entire bundle, thereby reducing the frequency of signature processing while maintaining security verification.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS12425821B2Method of sharing and delivering V2X service related information by a server and an RSU and apparatus therefor

Publication Date: 2025.09.23 LG ELECTRONICS INC

AI summary

A Road Side Unit (RSU) device can include a communication interface configured to transmit and receive messages with a server and a plurality of direct communication User Equipment (UE). Also, the RSU device can further include a controller configured to receive a first vehicle-to-everything (V2X) service related information item from the server, and in response to determining that signature processing is currently unavailable for the first V2X service related information item, continue to collect a plurality of V2X service related information items from the server until signature processing becomes available. When signature processing become available, the control is configured to perform signature processing for the first V2X service related information item and the plurality of V2X service related information items as a group of V2X information to generate second signature-processed V2X service related information, and transmit the second signature-processed V2X service related information to one direct communication UE.