Base Station Traffic History Control for Power and Interference

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Solution Overview

Problem

Existing base station technologies fail to adequately reduce power consumption and electromagnetic wave interference between adjacent cells, as they often activate unnecessary base stations even during low traffic conditions, leading to inefficient power use and increased interference.

Innovation Solution

Implementing a base station with traffic history generation and control mechanisms that measure and store traffic data for each unit time, allowing for intelligent control of signal transmission based on historical traffic patterns, thereby optimizing power usage and reducing unnecessary activations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If base stations are activated to ensure coverage and handle potential traffic, then service reliability is improved, but power consumption increases and electromagnetic wave interference rises

Engineering Contradiction:

Improveservice reliabilityVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by stationary object

Solution Approach 1:

The base station transitions between active and inactive states dynamically based on traffic conditions. The control unit activates the base station only when traffic exceeds a threshold, and deactivates it when traffic is low, making the system adaptable rather than static.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The control unit predicts future traffic based on historical traffic data before making activation decisions. This preliminary analysis allows the system to proactively activate base stations before traffic peaks occur, ensuring service reliability while avoiding unnecessary activations during low traffic periods.

Inventive Principle:

Principle #10Preliminary action

2Reliability

If base stations are activated to handle potential traffic, then service reliability is improved, but electromagnetic wave interference increases

Engineering Contradiction:

Improveservice reliabilityVSAvoidelectromagnetic wave interference

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system uses the potential for interference as a signal to optimize network efficiency. By deactivating base stations during low traffic periods, the system converts what would be harmful interference into an opportunity to reduce overall network interference and improve service quality for active base stations.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

3Reliability

If base stations operate continuously to ensure coverage, then service availability is improved, but power waste increases

Engineering Contradiction:

Improveservice availabilityVSAvoidpower waste

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The base station autonomously monitors its own traffic conditions and makes self-directed activation/deactivation decisions based on historical data and current load. The control unit independently determines when the base station should be active without requiring constant external control, reducing power waste through self-optimized operation.

Inventive Principle:

Principle #25Self-service

4Object-generated harmful factors

If base stations are activated based on adjacent base station traffic, then interference is reduced, but unnecessary activations occur when no mobile stations need handover

Engineering Contradiction:

ImproveinterferenceVSAvoidpower consumption

Core Design Contradiction:

Object-generated harmful factorsVSUse of energy by stationary object

Solution Approach 1:

The control unit continuously monitors both adjacent base station traffic and its own traffic conditions, using this feedback to make informed activation decisions. Historical traffic data provides context for current conditions, allowing the system to distinguish between temporary fluctuations and sustained traffic patterns that warrant activation.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS8964552B2Base station, method for controlling base station, control program, and mobile station

Publication Date: 2015.02.24 NEC CORP

AI summary

To provide a base station in which an electric power consumed in the base station can be suppressed and an electromagnetic wave interference between the base stations can be avoided, a method for controlling a base station, a control program, and a mobile station. The base station includes storage means, traffic history generation means for measuring a traffic of the base station for each unit time and storing it in the storage means as a traffic history, and control means for controlling transmission of a control signal based on the traffic history.