Wireless Communication Scheduling Around Access Point Power Failures

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Solution Overview

Problem

Power failures in wireless communication devices due to unstable power grids cause communication failures in wireless communication systems, affecting devices in various fields such as automotive, IoT, and medical applications.

Innovation Solution

A method and device that determine a geographical path and power availability of access points, scheduling communication to avoid power failures by selecting access points with sufficient power availability, using historical data and potentially machine learning to optimize communication paths.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If communication is established via access points in unstable power grid areas, then wireless communication coverage is improved, but communication reliability deteriorates due to power failures

Engineering Contradiction:

Improvecommunication coverage areaVSAvoidcommunication reliability

Core Design Contradiction:

Area of stationary objectVSReliability

Solution Approach 1:

The system performs preliminary actions by determining the geographical path of the wireless communication device and acquiring power availability data for access points along this path before communication occurs. This allows the scheduling device to proactively identify access points at risk of power failure and pre-plan alternative communication routes, thereby maintaining communication reliability while preserving coverage area.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system implements feedback by continuously monitoring power availability data for access points and using this information to dynamically adjust communication scheduling. The scheduling device receives feedback about power conditions and modifies communication plans accordingly, switching to alternative access points when power failures are detected or predicted, thus resolving the contradiction between coverage and reliability.

Inventive Principle:

Principle #23Feedback

2Reliability

If communication scheduling avoids access points with power failure risks, then communication reliability is improved, but communication coverage area deteriorates

Engineering Contradiction:

Improvecommunication reliabilityVSAvoidcommunication coverage area

Core Design Contradiction:

ReliabilityVSArea of stationary object

Solution Approach 1:

The system applies dynamics by making the communication schedule adaptive rather than static. The scheduling device dynamically adjusts communication plans based on real-time power availability data, enabling the system to reliably serve areas with unstable power grids by flexibly switching between access points. This dynamic approach maintains both reliability and effective coverage area.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system changes parameters by utilizing power availability data as an additional dimension for scheduling decisions. By incorporating this new parameter into the scheduling algorithm, the system can identify and select access points with adequate power supply while maintaining comprehensive coverage through alternative routing, thus resolving the contradiction between reliability and coverage area.

Inventive Principle:

Principle #35Parameter changes

3Reliability

If power availability data is acquired and analyzed for scheduling, then communication reliability is improved, but device complexity increases

Engineering Contradiction:

Improvecommunication reliabilityVSAvoidscheduling device complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system implements self-service by having access points autonomously provide their own power availability data to the scheduling device. This eliminates the need for complex monitoring infrastructure at the scheduling device, as each access point independently reports its power status. The scheduling device simply processes this self-reported data to make reliable scheduling decisions, reducing overall system complexity.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The scheduling device performs multiple functions by integrating path determination, power availability data acquisition, and communication scheduling into a single unified system. This multi-functionality reduces the need for separate specialized devices, thereby managing complexity while achieving improved communication reliability through comprehensive power-aware scheduling.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS12538338B2Scheduling communication of a wireless communication device in a communications network

Publication Date: 2026.01.27 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

AI summary

The present disclosure relates to a method of scheduling communication of a wireless communication device in a communications network, and a device performing the method. A method of a device of scheduling communication of a wireless communication device in a communications network is provided. The method includes determining a geographical path along which the wireless communication device is expected to travel, acquiring data indicating power availability of access points via which the wireless communication device is capable of communicating along the expected geographical path, determining, from the acquired data indicating power availability, via which of the access points communication is to be established along the expected geographical path for avoiding establishing communication with one or more of the access points indicated to be subjected to power failure, and scheduling the communication to occur via the determined access points.