Radio Communication Device Power Management via Dynamic Settings

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Solution Overview

Problem

In power supply systems like PoE, where power is transmitted through communication cables, there are instances where the power supplied from the source equipment is insufficient or the power consumption by the device exceeds the supply, leading to unstable operation of radio communication devices.

Innovation Solution

A radio communication device with a control unit that determines and adjusts its settings to ensure power consumption does not exceed the available power supply, using pre-stored power consumption information to calculate and manage power usage effectively.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a feed system supplies power through a communication cable to a radio communication device, then the device configuration is simplified, but the device cannot operate properly when power consumption exceeds power supply

Engineering Contradiction:
Improvedevice configurationVSAvoidoperation stability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The radio communication device dynamically adjusts its operational settings based on the detected power supply amount. The control unit changes transmission power, modulation schemes, or other operational parameters to match the available power supply, ensuring stable operation across different power conditions without requiring complex supplemental power sources

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The device changes operational parameters such as transmission power level, modulation order, and coding rate according to the detected power supply conditions. By adjusting these parameters, the device adapts its power consumption to match the limited power supply from the communication cable while maintaining reliable communication functionality

Inventive Principle:
Principle #35Parameter changes

2Productivity

If the radio communication device operates with high power consumption settings, then communication performance is improved, but the device cannot operate properly when power supply is limited

Engineering Contradiction:
Improvecommunication performanceVSAvoidoperation stability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The control unit dynamically adjusts communication parameters such as transmission power and modulation schemes based on detected power supply conditions. When power supply is sufficient, higher performance settings are used; when power is limited, the device automatically reduces power consumption while maintaining stable operation

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The device implements a feedback mechanism where the control unit detects the power supply amount and uses this information to adjust operational settings. This closed-loop control ensures that communication performance is optimized within the constraints of available power supply

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS10177925B2Radio communication device and method for controlling radio communication device
Publication Date: 2019.01.08 NEC CORP
  • US10177925B2 patent drawing
  • US10177925B2 patent drawing
  • US10177925B2 patent drawing

AI summary

A radio communication device (1) according to the present invention is supplied with power through a communication cable (21). The radio communication device (1) includes a control unit that determines a setting content of the radio communication device (1) so that an amount of power consumption does not exceed an amount of power supply supplied to the radio communication device (1), the amount of the power consumption being calculated by using power consumption information associating the setting content of the radio communication device (1) with power consumption consumed when the radio communication device (1) operates with that setting content. According to the present invention, it is possible to provide a radio communication device capable of realizing a stable operation even when a feed system that supplies power through a communication cable is used.