Network Function Session Control for Location-Aware Power Reduction

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Solution Overview

Problem

Existing communication systems consume excessive electric power due to unnecessary information sessions, particularly in scenarios where the information is not needed by the user, such as when a vehicle is driving on an expressway.

Innovation Solution

Implementing a network function (NF) that determines whether to establish a session with a user plane based on conditions set by the service, such as location, time, and speed, to reduce unnecessary sessions and associated power consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If sessions are established for all service requests, then service availability is improved, but electric power consumption increases

Engineering Contradiction:

Improveservice availabilityVSAvoidelectric power consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent changes the parameter of session establishment from unconditional to conditional based on vehicle movement state. When the vehicle is detected to be moving at high speed (e.g., on expressway), the system changes the session establishment parameter to reject unnecessary sessions, thereby reducing power consumption while maintaining service availability when needed.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent introduces dynamic session establishment that adapts to real-time vehicle movement conditions. The session establishment decision is no longer static but dynamically adjusted based on detected movement state, allowing the system to optimize between service availability and power consumption according to actual operational context.

Inventive Principle:

Principle #15Dynamics

2Adaptability or versatility

If sessions are established for all service requests, then service coverage is improved, but unnecessary information processing occurs

Engineering Contradiction:

Improveservice coverageVSAvoidpower consumption for processing

Core Design Contradiction:

Adaptability or versatilityVSLoss of energy

Solution Approach 1:

The patent applies partial action by establishing sessions only for necessary service requests rather than all requests. By partially filtering service requests based on movement state, the system avoids excessive session establishment and associated information processing, reducing power consumption while maintaining adequate service coverage.

Inventive Principle:

Principle #16Partial or excessive action

Solution Approach 2:

The patent extracts and removes unnecessary service requests from the session establishment process based on movement state analysis. By taking out requests that would result in unnecessary information processing (e.g., POI information for vehicles on expressways), the system reduces power consumption while preserving service coverage for legitimate requests.

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUS20250220754A1Information processing system, information processing apparatus, and information processing method

Publication Date: 2025.07.03 TOYOTA JIDOSHA KK

AI summary

Information processing includes a first network function (NF) configured to: receive a first request from a terminal, the first request being a request to establish a session with a user plane in relation to a first service; and determine whether to establish a session with a user plane for the first request based on a first condition to permit or reject establishment of the session in relation to the first service.