Sidelink Authorization by Application and Geographic Area

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Solution Overview

Problem

Existing proximity-based service (ProSe) communication systems fail to limit sidelink communication at an application granularity, leading to improper usage restrictions for terminal devices.

Innovation Solution

A management network element determines geographic areas where a terminal device can use a specific application through sidelink communication, sending proximity service discovery parameters to the device, and managing resource allocation based on location information to ensure proper application-specific sidelink communication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the AF limits sidelink communication area at an application granularity, then the sidelink communication control precision is improved, but the current terminal device processing manner cannot implement this limitation

Engineering Contradiction:

Improvesidelink communication control precisionVSAvoidapplication-specific sidelink communication support

Core Design Contradiction:

Measurement precisionVSAdaptability or versatility

Solution Approach 1:

The patent segments the sidelink communication control by introducing application-specific area information. Instead of a single area limitation for all applications, the system now maintains separate area restrictions for each application, allowing precise control at the application level while enabling terminals to support multiple application-specific area configurations simultaneously.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent applies local quality by allowing different area limitations for different applications. Each application can have its own geographic area restrictions, so that sidelink communication is permitted in specific areas for specific applications while being restricted for other applications, creating localized control characteristics for each application.

Inventive Principle:

Principle #3Local quality

2Ease of operation

If the AMF provides sidelink authorization information at a terminal device granularity, then the authorization management is simplified, but the application-specific area limitation cannot be implemented

Engineering Contradiction:

Improveauthorization management simplicityVSAvoidapplication-specific area control precision

Core Design Contradiction:

Ease of operationVSMeasurement precision

Solution Approach 1:

The patent segments the authorization information into application-specific components. The AMF now provides not only terminal-level authorization but also application-specific area information that divides the overall authorization into application-specific segments, enabling both simplified centralized management and precise application-level control.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent adds a new dimension to the authorization system by introducing application identification as an additional layer. Instead of only terminal-level authorization, the system now operates in two dimensions: terminal device granularity and application granularity, allowing comprehensive control without sacrificing management simplicity.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Device complexity

If all applications of a terminal device are restricted when sidelink communication is limited in an area, then the area limitation enforcement is simplified, but the application-specific control flexibility is lost

Engineering Contradiction:

Improvearea limitation enforcement complexityVSAvoidapplication-specific area control flexibility

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent segments the area limitation enforcement by maintaining separate area information for each application. Instead of applying a single area restriction to all applications, the system enforces multiple application-specific area limitations, allowing flexible control where each application can have its own permitted areas without increasing terminal complexity significantly.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent enables local quality by allowing different area restrictions for different applications. Each application can have its own geographic constraints, so that the terminal device can adaptively enable or disable sidelink communication based on the current area and the specific application, providing localized control flexibility.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS12501305B2Proximity service communication method, management network element, terminal device, and communication system

Publication Date: 2025.12.16 HUAWEI TECH CO LTD

AI summary

This application provides a proximity service communication method, a communication apparatus, and a communication system. When a terminal device requests a communication resource corresponding to a first sidelink, a management network element may determine, based on location information of the terminal device, whether the terminal device is located in a geographic area in which the terminal device can use a first application through a sidelink, to determine whether to provide a proximity service parameter for the terminal device. This limits, at an application granularity, sidelink communication used by the terminal device.