Access Network Device V2X Parameter Storage for PC5 Resource Allocation

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Solution Overview

Problem

In group communication scenarios, access network devices cannot determine whether a group member device is authorized to use PC5 resources, leading to refusal of resource allocation and hindered V2X communication.

Innovation Solution

An access network device receives and stores the V2X communication parameter of a group member device, allowing it to allocate PC5 resources based on this parameter, ensuring the group member device can perform V2X communication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the access network device refuses to allocate PC5 resources without determining authorization, then resource allocation security is improved, but V2X communication functionality deteriorates

Engineering Contradiction:

Improveresource allocation securityVSAvoidV2X communication functionality

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The access network device performs preliminary authorization determination by obtaining and storing V2X communication parameters (including authorization information) of group member devices before PC5 resource allocation. This preliminary action enables the device to verify authorization status in advance, resolving the contradiction by ensuring both security through authorization checks and functionality by allowing authorized devices to communicate

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent introduces V2X communication parameters as an intermediary mechanism that carries authorization information from the group control device to the access network device. This intermediary enables the access network device to determine authorization without direct group management involvement, balancing security requirements with communication functionality

Inventive Principle:

Principle #24Intermediary (Mediator)

2Difficulty of detecting and measuring

If the access network device obtains V2X communication parameter from group control device, then authorization determination capability is improved, but signaling overhead increases

Engineering Contradiction:

Improveauthorization determination capabilityVSAvoidsignaling overhead

Core Design Contradiction:

Difficulty of detecting and measuringVSLoss of information

Solution Approach 1:

The access network device obtains and stores V2X communication parameters in advance from the group control device before resource allocation is needed. This preliminary acquisition of authorization information reduces the need for repeated signaling during resource allocation, improving authorization determination capability while reducing overall signaling overhead

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent combines multiple pieces of information including V2X communication parameters, group identifiers, and device identifiers into a single stored record at the access network device. This merging reduces the need for multiple separate signaling exchanges, lowering overhead while maintaining comprehensive authorization determination capability

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS12200741B2Data processing method and apparatus, and system

Publication Date: 2025.01.14 HUAWEI TECH CO LTD

AI summary

A data processing method includes receiving by an access network device a vehicle-to-everything (V2X) communication parameter of a group member device. The method also includes storing, by the access network device, the V2X communication parameter with context about a group to which the group member device belongs. The V2X communication parameter is used for allocation of a ProSe communication 5 (PC5) resource to the group member device.