Clock Circuit Time-Window Control for Low-Power Network Nodes

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

In high-data-rate communication networks like PON, the power consumption of network nodes increases significantly due to the need for high-frequency clock circuits, and existing methods fail to effectively manage clock circuits to reduce power consumption while maintaining normal communication.

Innovation Solution

A method where a first node in a network receives time window information from a second node and enables its clock circuit only during assigned time windows for upstream data transmission, allowing separate control of upstream and downstream clock signals to reduce power consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If high-frequency clock circuits are used for high-data-rate communication, then data communication rate is improved, but power consumption increases significantly

Engineering Contradiction:
Improvedata communication rateVSAvoidpower consumption
Core Design Contradiction:
SpeedVSUse of energy by moving object

Solution Approach 1:

The patent applies periodic action by enabling the clock circuit only during specific time windows when data transmission is required, rather than keeping it continuously active. The network device receives time window information indicating when upstream data transmission should occur, and accordingly activates the clock circuit only during these periodic intervals, thereby reducing overall power consumption while maintaining high data communication rates when needed.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The patent implements dynamics by making the clock circuit state changeable between enabled and disabled states based on transmission requirements. The system dynamically adjusts the clock circuit operation status according to the received time window information, transitioning from a static always-on state to a dynamic on-demand state, thus resolving the contradiction between maintaining high communication performance and reducing power consumption.

Inventive Principle:
Principle #15Dynamics

2Reliability

If clock circuit is continuously enabled to maintain normal communication, then communication reliability is improved, but power consumption increases

Engineering Contradiction:
Improvecommunication reliabilityVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent uses periodic action to enable the clock circuit only during specific time windows when communication is actually required, rather than continuous operation. The time window information received from the network device specifies exact intervals for upstream data transmission, and the clock circuit is activated only during these periodic intervals, ensuring communication reliability when needed while minimizing power consumption during idle periods.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The system implements self-service by automatically adjusting the clock circuit operation based on received time window information without requiring external intervention. The network device autonomously manages its own power consumption by enabling the clock circuit only when transmission is required, as indicated by the time window information, thus balancing reliability and energy efficiency independently.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP3734986B1Method, device and computer-readable medium of managing a clock circuit
Publication Date: 2024.08.21 NOKIA SOLUTIONS & NETWORKS OY
  • EP3734986B1 patent drawingFigure 1
  • EP3734986B1 patent drawingFigure 2
  • EP3734986B1 patent drawingFigure 3

AI summary

Embodiments of the present disclosure provide a data buffering method, electronic device and computer-readable medium. The method comprises receiving, at a first node of a network, time window information from a second node of the network, the time window information defining a time window when data is transmitted from the first node to the second node. The method further comprises enabling a first clock circuit of the first node at least partly based on the time window information to provide a first clock signal for data transmission from the first node to the second node. Therefore, the power consumption at the first node can be effectively reduced.