Router Card Clock Frequency Determination

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Solution Overview

Problem

Conventional methods waste energy by setting the highest clock frequency for each router card to ensure network operation, leading to unnecessary power consumption since actual traffic does not always reach the highest supported frequency.

Innovation Solution

A method and device that determine the lowest clock frequency required based on average port traffic, updating traffic and port counts, and adjusting clock frequencies accordingly to match actual network demands, thereby optimizing power usage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the highest clock frequency is set for each router card to ensure network operation, then network reliability is improved, but power consumption increases

Engineering Contradiction:
Improvenetwork operation reliabilityVSAvoidrouter card power consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent applies dynamics by making the clock frequency adjustable rather than fixed. The system dynamically determines the minimum required clock frequency based on actual traffic load and updates the router card's clock frequency accordingly. This allows the clock frequency to adapt to changing network conditions, ensuring reliable operation only when necessary while reducing power consumption during low-traffic periods.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the clock frequency parameter from a static highest value to a dynamic value determined by actual traffic requirements. By calculating the minimum clock frequency needed to handle current traffic load and adjusting the router card's operating frequency to this calculated value, the system maintains network reliability while avoiding the energy waste of running at maximum frequency when full capacity is not needed.

Inventive Principle:
Principle #35Parameter changes

2Productivity

If the highest clock frequency is set for each router card, then traffic handling capability is improved, but energy efficiency deteriorates

Engineering Contradiction:
Improvetraffic handling capabilityVSAvoidnetwork energy waste
Core Design Contradiction:
ProductivityVSLoss of energy

Solution Approach 1:

The patent applies partial action by determining and using only the minimum clock frequency necessary to handle actual traffic load, rather than always operating at the maximum or highest supported frequency. The system calculates the precise frequency needed based on current traffic conditions and applies only that amount, avoiding the energy waste of excessive frequency operation while still maintaining adequate traffic handling capability.

Inventive Principle:
Principle #16Partial or excessive action

Solution Approach 2:

The system dynamically adjusts the clock frequency parameter to match actual traffic requirements. By continuously monitoring traffic load and recalculating the minimum required frequency, the system ensures traffic handling capability is maintained at adequate levels without the energy inefficiency of static high-frequency operation during low-traffic periods.

Inventive Principle:
Principle #15Dynamics

3Use of energy by moving object

If clock frequency is reduced to save power, then energy consumption is improved, but network service quality may deteriorate

Engineering Contradiction:
Improvepower consumptionVSAvoidnetwork service quality
Core Design Contradiction:
Use of energy by moving objectVSReliability

Solution Approach 1:

The patent implements feedback by continuously monitoring actual traffic load on router cards and using this information to determine the appropriate clock frequency. The system calculates the minimum frequency needed to handle current traffic requirements and adjusts the router card's operating frequency accordingly. This feedback loop ensures that power consumption is reduced only when traffic load permits, while maintaining adequate service quality by ensuring the clock frequency is never reduced below what is necessary to handle actual network traffic.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system changes the clock frequency parameter dynamically based on monitored traffic conditions. By calculating the minimum required frequency from actual traffic data and adjusting the operating frequency to this calculated value, the system achieves power savings while preventing service quality deterioration, as the frequency is never reduced below the threshold needed to handle current network load.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS10152110B2Clock frequency determining method and device for router card
Publication Date: 2018.12.11 SUZHOU UNIV
  • US10152110B2 patent drawing
  • US10152110B2 patent drawing
  • US10152110B2 patent drawing

AI summary

Provided are a method and a device for determining a clock frequency of a router card. The method includes steps A to D. In step A, a target average port traffic is obtained by using the number of ports and a total to-be-served traffic higher than zero of a target network node for each of neighboring network nodes. In step B, a clock frequency meeting the demand of the target average port traffic is determined as a clock frequency of any router card, the clock frequency of which has not been set, in the target network node. In step C, the total to-be-served traffic and the number of ports are updated. In step D, step A is performed, in a case that there is the updated total to-be-served traffic higher than zero.