Terminal Device Wireless Channel Switching

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Solution Overview

Problem

Terminal devices face challenges in wireless communication due to restrictions on certain channels in the 2.4 GHz band, particularly Channels 12 and 13, which are subject to signal strength and data rate limitations based on geographical location, necessitating adaptive channel switching to comply with regulatory restrictions.

Innovation Solution

The terminal device is equipped with circuitry that determines its position and adjusts wireless communication settings to comply with channel restrictions by switching to lower signal strength and data rates when in restricted areas, using a near field wireless communication processor and positioning systems to identify and adapt to channel usage rules across different locations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the terminal device uses higher frequency channels (Channels 12 and 13) for wireless communication, then the data rate and signal strength can be increased, but the device may violate regulatory restrictions in certain geographical locations

Engineering Contradiction:
Improvedata rateVSAvoidregulatory compliance
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The terminal device dynamically adjusts its wireless communication parameters by switching between different operational modes (first communications state with higher data rate and second communications state with lower data rate) based on real-time location information and regulatory database queries, allowing the device to optimize performance while maintaining compliance

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes communication parameters (data rate, signal strength, channel selection) based on the determined geographical location and applicable regulatory restrictions, transitioning between different communications states to balance performance and compliance requirements

Inventive Principle:
Principle #35Parameter changes

2Reliability

If the terminal device switches communication states frequently to comply with location-based restrictions, then regulatory compliance is maintained, but communication stability and connectivity may be affected

Engineering Contradiction:
Improveregulatory complianceVSAvoidcommunication stability
Core Design Contradiction:
ReliabilityVSStability of the object's composition

Solution Approach 1:

The terminal device performs preliminary actions by determining location and checking regulatory restrictions before initiating or switching communication channels, ensuring compliance is established in advance rather than reacting to violations, thereby maintaining both compliance and communication stability

Inventive Principle:
Principle #10Preliminary action

3Measurement precision

If the terminal device determines location and checks regulatory restrictions continuously, then compliance accuracy is improved, but device power consumption and processing load increase

Engineering Contradiction:
Improvelocation accuracyVSAvoidpower consumption
Core Design Contradiction:
Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The terminal device autonomously determines its own location and checks applicable regulatory restrictions without requiring continuous external verification, using its built-in positioning capabilities and local regulatory database to self-regulate communication parameters, reducing the need for energy-intensive continuous external communication

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS9999071B2Terminal device and method for controlling wireless communication state
Publication Date: 2018.06.12 SONY GROUP CORP
  • US9999071B2 patent drawing
  • US9999071B2 patent drawing
  • US9999071B2 patent drawing

AI summary

A terminal device includes circuitry configured to communicate wirelessly with an access point via a channel that has at a first signal strength and a first data rate. The circuitry is also configured to determine wireless transmission channel restrictions and obtain a position of the terminal device in order to determine if the wireless transmission channel restrictions apply to the terminal device based on the position of the terminal device. The circuitry is also configured to switch to a communications state that complies with the transmission channel restrictions and if the wireless transmission channel restrictions apply based on the position of the terminal device.