Network Selection for Energy Efficiency Thresholds

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Solution Overview

Problem

Existing network selection methods fail to consider energy efficiency, leading to reduced system energy efficiency and unmet energy saving requirements for operators.

Innovation Solution

A network selection method that determines networks meeting user requirements and estimates average energy efficiency during service transmission, selecting a network that reaches a preset energy efficiency threshold to serve users, thereby improving overall energy efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If network selection is performed based on service requirements and network characteristics, then service performance is improved, but energy consumption of the network is not considered and system energy efficiency is reduced

Engineering Contradiction:
Improveservice performanceVSAvoidsystem energy efficiency
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The patent introduces energy efficiency as a new selection parameter alongside existing service requirements and network characteristics. By changing the selection criteria to include energy efficiency parameters, the system achieves both service performance improvement and energy consumption reduction, resolving the contradiction between reliability and energy loss.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If network reselection is performed after network performance changes, then network optimization is achieved, but frequent handover occurs and energy consumption increases

Engineering Contradiction:
Improvenetwork optimizationVSAvoidhandover energy consumption
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The patent performs network selection and energy efficiency assessment in advance before service establishment. By preliminarily determining the optimal network based on predicted energy efficiency rather than reacting to performance changes, the system avoids frequent handovers and reduces handover-related energy consumption while still achieving network optimization.

Inventive Principle:
Principle #10Preliminary action

3Use of energy by moving object

If terminal energy saving is prioritized in network selection, then terminal energy consumption is reduced, but network energy consumption is not considered and operator energy saving requirements are not met

Engineering Contradiction:
Improveterminal energy consumptionVSAvoidnetwork energy consumption
Core Design Contradiction:
Use of energy by moving objectVSLoss of energy

Solution Approach 1:

The patent merges terminal energy saving considerations with network energy efficiency assessment into a unified selection framework. By combining both terminal and network energy perspectives into a single energy efficiency evaluation, the system simultaneously achieves terminal energy reduction and network energy consumption reduction, meeting operator energy saving requirements.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS9872253B2Network selection method, apparatus, and base station
Publication Date: 2018.01.16 HUAWEI TECH CO LTD
  • US9872253B2 patent drawing
  • US9872253B2 patent drawing
  • US9872253B2 patent drawing

AI summary

Embodiments of the present invention disclose a network selection method, an apparatus and a base station. The method includes: determining each of networks satisfying requirements of a user when the user initiates a service or transmits a service; estimating an average energy efficiency of a system during service transmission after the user selects to access each of the networks; selecting a network which can make the average energy efficiency of the system reach a preset threshold value to serve the user. Embodiments of the present invention solve a problem in the prior art that, because no consideration is given to network energy consumption in the network selection, system energy efficiency is reduced. Through comprehensive consideration of network energy efficiency and system energy efficiency, the need for energy saving and consumption reduction is met.