IoT Mode Switching via Physical Channels in Wireless Terminals

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Solution Overview

Problem

Current wireless communication systems face challenges in efficiently managing the increasing data traffic, supporting a large number of connected devices, achieving low latency, and ensuring energy efficiency, particularly in switching between different IoT modes in a connected state.

Innovation Solution

A method and device for switching IoT modes in a wireless communication system, allowing a terminal to request or be indicated by a base station to switch from one IoT mode to another, using specific physical channels like PUSCH, PUCCH, or PRACH, based on signal strength and resource configuration, to optimize operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If IoT modes are switched frequently to optimize performance, then energy efficiency and resource management improve, but system complexity and switching overhead increase

Engineering Contradiction:
Improveenergy efficiencyVSAvoidsystem complexity
Core Design Contradiction:
Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The patent changes operational parameters by switching between different IoT modes (e.g., coverage enhancement modes, bandwidth adaptation) based on signal strength and network conditions. This allows the system to optimize energy efficiency by selecting appropriate modes dynamically without requiring complete system redesign, thus improving energy efficiency while maintaining manageable complexity through parameter adjustment rather than structural change.

Inventive Principle:
Principle #35Parameter changes

2Loss of time

If mode switching is performed quickly to reduce latency, then service response time improves, but signal strength assessment and decision-making accuracy may be compromised

Engineering Contradiction:
ImprovelatencyVSAvoidsignal strength assessment accuracy
Core Design Contradiction:
Loss of timeVSMeasurement precision

Solution Approach 1:

The patent performs preliminary signal strength assessment and mode selection preparation before actual mode switching is required. By evaluating signal conditions in advance and pre-determining appropriate modes, the system reduces the critical decision-making time during actual switching events, thereby reducing latency while maintaining measurement accuracy through advance assessment rather than rushed real-time decisions.

Inventive Principle:
Principle #10Preliminary action

3Productivity

If the terminal initiates mode switching requests autonomously, then responsiveness to changing conditions improves, but network control and coordination may be compromised

Engineering Contradiction:
Improveswitching responsivenessVSAvoidnetwork coordination capability
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The patent implements a feedback mechanism where the terminal autonomously assesses its operating conditions and generates mode switching requests, but these requests are subject to network confirmation and coordination. The network receives feedback from the terminal about desired mode changes, validates them against overall network conditions, and provides final authorization. This balanced approach maintains terminal responsiveness while preserving network coordination capability through iterative feedback and approval processes.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS11943817B2Method for switching operation modes in wireless communication system, and device therefor
Publication Date: 2024.03.26 LG ELECTRONICS INC
  • US11943817B2 patent drawing
  • US11943817B2 patent drawing
  • US11943817B2 patent drawing

AI summary

The present specification, relates to a method for switching Internet of Things (IoT) modes in a wireless communication system and a device therefor.According to the present specification, the method whereby a terminal switches IoT modes in a wireless communication system comprises the steps of: transmitting, in a radio resource control (RRC) connected state, an operation mode switching request for requesting switching from a source IoT mode, which is the current operation mode of the terminal, to a base station via a predetermined physical channel; receiving, from the base station, an operation mode switching response to the operation mode switching request; and switching from the source IoT mode to a predetermined target IoT mode on the basis of the operation mode switching response.