Group Wireless Device Temperature and Power Management

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Solution Overview

Problem

Wireless communication devices face challenges in managing transmitter power consumption and circuit temperatures, particularly when operating in groups, as existing technologies do not effectively optimize RF power consumption and temperature management across devices, leading to increased battery discharge rates and potential reliability issues.

Innovation Solution

A connectivity management entity (CME) is introduced to control wireless connections among devices, optimizing RF power consumption and temperatures by using temperature and communication link metrics, allowing devices to share resources and dynamically adjust power output based on thermal and performance metrics, employing machine learning and user prioritization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If devices operate at high power to maintain communication quality, then communication reliability is improved, but battery discharge rate and temperature increase

Engineering Contradiction:
Improvecommunication reliabilityVSAvoidbattery discharge rate
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

Multiple devices are merged into a group that shares a common internet connection through a designated first device. This allows individual devices to operate at lower power levels while maintaining collective communication reliability, as the group shares the bandwidth and connection resources rather than each device requiring its own high-power connection.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

A connectivity management entity (CME) acts as an intermediary to manage and optimize the group's wireless connections. The CME monitors temperature and communication link metrics, dynamically adjusting power output and connection allocation to balance communication reliability with power consumption across the group of devices.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If RF power output is increased to maintain communication quality, then communication performance is improved, but circuit temperature increases

Engineering Contradiction:
Improvecommunication performanceVSAvoidRF power amplifier temperature
Core Design Contradiction:
ProductivityVSTemperature

Solution Approach 1:

Multiple devices share the RF transmission burden by designating a first device as the primary transmitter for the group. This distributes the thermal load across multiple devices rather than concentrating heat generation in a single high-power transmitter, allowing maintained communication performance with lower individual device temperatures.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The system continuously monitors temperature and communication link metrics, using this feedback to dynamically adjust RF power output. When temperature approaches thresholds or communication quality deteriorates, the CME automatically modifies power levels and connection allocation to maintain performance while preventing thermal runaway.

Inventive Principle:
Principle #23Feedback

3Temperature

If devices dynamically adjust power output based on thermal metrics, then temperature management is improved, but system complexity increases

Engineering Contradiction:
Improvetemperature managementVSAvoidpower management complexity
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The connectivity management entity (CME) serves as a centralized intermediary that handles the complexity of monitoring temperature metrics, evaluating communication link quality, and coordinating power adjustments across the device group. This centralizes the control logic, allowing individual devices to have simpler power management circuits while achieving sophisticated group-wide temperature management.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS20170019868A1Apparatus and method for managing transmitter temperature and power within a group of communication devices
Publication Date: 2017.01.19 MOTOROLA MOBILITY LLC
  • US20170019868A1 patent drawing
  • US20170019868A1 patent drawing
  • US20170019868A1 patent drawing

AI summary

A method and apparatus for wireless communication device operation comprises receiving one or more metrics from at least two members of a group whose members are wireless communication devices. The members of the group have agreed to share resources within the group and have their wireless connections controlled by the WCD. The wireless connections of the at least two members are managed, based on the one or more metrics, to optimize performance of the at least two members. The one or more metrics comprise at least one temperature based metric.