Wireless Node MIMO to SISO Mode Transition

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Solution Overview

Problem

Wireless communication devices, reliant on battery power, face challenges in conserving energy as MIMO techniques consume more power compared to SISO, necessitating a method to transition between these modes to optimize power usage.

Innovation Solution

Implementing a mechanism for wireless communication nodes to transition from MIMO to SISO mode under conditions such as power save modes, low battery levels, or varying traffic types, allowing for efficient power management by adjusting communication protocols based on battery power and transmission queue depth.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If MIMO mode is used for communication, then data transmission rate and reliability are improved, but power consumption increases

Engineering Contradiction:
Improvedata transmission rateVSAvoidpower consumption
Core Design Contradiction:
ProductivityVSUse of energy by moving object

Solution Approach 1:

The patent implements dynamic mode switching between MIMO and SISO based on real-time conditions. The system transitions from static operation mode to dynamic adaptation, where the communication mode is adjusted according to battery power levels and traffic queue depth, resolving the contradiction by making the system flexible rather than fixed

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the operational parameter (communication mode) based on system state. By monitoring battery power and traffic conditions, the system switches between MIMO (high performance, high power) and SISO (low performance, low power) modes, effectively managing the trade-off between data transmission rate and power consumption

Inventive Principle:
Principle #35Parameter changes

2Reliability

If MIMO mode is used for communication, then communication reliability is improved, but battery life decreases

Engineering Contradiction:
Improvecommunication reliabilityVSAvoidbattery life
Core Design Contradiction:
ReliabilityVSDuration of action of moving object

Solution Approach 1:

The system dynamically adjusts communication mode based on battery status. When battery power is sufficient, MIMO mode maintains high reliability; when battery power drops below thresholds, the system transitions to SISO mode to preserve battery life, thus managing the reliability-battery life trade-off dynamically

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system performs preliminary assessment of battery power and traffic conditions before mode selection. By evaluating current system state in advance, the system proactively switches modes to prevent battery depletion while maintaining communication reliability when possible

Inventive Principle:
Principle #10Preliminary action

3Use of energy by moving object

If SISO mode is used for communication, then power consumption is reduced, but data transmission rate decreases

Engineering Contradiction:
Improvepower consumptionVSAvoiddata transmission rate
Core Design Contradiction:
Use of energy by moving objectVSProductivity

Solution Approach 1:

The system applies SISO mode (partial action) when full MIMO capability is not needed. By using only single-antenna communication during low-power periods or low-traffic conditions, the system consumes less power while accepting reduced transmission rate, which is sufficient for the current operational requirements

Inventive Principle:
Principle #16Partial or excessive action

4Duration of action of moving object

If SISO mode is used for communication, then battery life is extended, but communication reliability decreases

Engineering Contradiction:
Improvebattery lifeVSAvoidcommunication reliability
Core Design Contradiction:
Duration of action of moving objectVSReliability

Solution Approach 1:

The system dynamically balances battery life extension with communication reliability by switching between SISO and MIMO modes. When battery power is low, SISO mode extends battery life; when battery power is sufficient, MIMO mode restores communication reliability, creating a dynamic balance between these two parameters

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS9756569B2Transitioning from MIMO to SISO to save power
Publication Date: 2017.09.05 AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE LTD
  • US9756569B2 patent drawing
  • US9756569B2 patent drawing
  • US9756569B2 patent drawing

AI summary

Various example embodiments are disclosed. According to an example embodiment, an apparatus may include at least one processor and at least one memory. The at least one memory may include computer-executable code that, when executed by the processor, is configured to cause the apparatus to send a message to a node in wireless communication with the apparatus, the message indicating a transition by the apparatus from multiple-input multiple-output (MIMO) to single-input single-output (SISO), and transition from wireless MIMO communication with the node to wireless SISO communication with the node after sending the message to the node.