Communication Device Channel Switching for Interference Management

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Solution Overview

Problem

Existing radio communication systems, such as 5G and IEEE 802.11ad/ay, face challenges in maintaining data transmission efficiency and reception quality across different apparatuses.

Innovation Solution

A communication apparatus and method that utilizes a signal processor to generate a modulation signal and a transmitter to transmit the signal across multiple channels within a frequency band, allowing for efficient data transmission and reception by switching between channels.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a communication apparatus transmits data using a fixed channel, then data transmission efficiency is maintained, but reception quality decreases due to interference from other apparatuses

Engineering Contradiction:

Improvedata transmission efficiencyVSAvoiddata reception quality

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent applies frequency hopping to dynamically change the transmission channel over time. The communication apparatus switches between multiple channels in the 60 GHz band during different time periods, allowing the system to adapt to changing interference conditions and maintain both transmission efficiency and reception quality.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the frequency parameter by hopping between different channels. The communication apparatus transmits on a first channel during a first time period and switches to a second channel during a second time period, thereby changing the operating parameters to avoid interference while maintaining communication effectiveness.

Inventive Principle:

Principle #35Parameter changes

2Reliability

If multiple channels are used for transmission, then reception quality is maintained, but device complexity increases

Engineering Contradiction:

Improvedata reception qualityVSAvoidchannel switching mechanism

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements periodic channel switching where the communication apparatus alternates between channels in a structured time-based manner. This periodic frequency hopping simplifies the control mechanism compared to arbitrary channel selection, as the switching follows a predictable time-periodic pattern that reduces the complexity of coordination between apparatuses.

Inventive Principle:

Principle #19Periodic action

Data Source

PatentUS20250039028A1Communication device and communication method

Publication Date: 2025.01.30 PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA

AI summary

The purpose of the present invention is to both suppress any decrease in data transmission efficiency in a device for transmitting data and suppress any decrease in received data quality in other devices. This communication device performs communication using a frequency band that is can be used in a wireless system, the communication device comprising a signal processing unit for generating a modulated signal, and a transmission unit for transmitting the modulated signal. The frequency band that can be used in the wireless system is configured from a plurality of channels. The transmission unit transmits the modulated signal using a first channel among the plurality of channels in a first time slot, and transmits the modulated signal using a second channel different from the first channel in a second time slot that follows the first time slot.