Common Wireless Circuit for NAN Service Advertisement

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing wireless connection establishment methods, such as those using Bluetooth Low Energy (BLE), require separate communication circuits for wireless LAN and BLE, leading to increased component costs and power consumption.

Innovation Solution

A communication apparatus that performs wireless communication using a common communication circuit, employing the Neighbor Awareness Network (NAN) standard to advertise services and establish connections, allowing for low power consumption and shared communication hardware.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If separate communication circuits are used for wireless LAN and BLE, then reliable wireless communication can be established, but apparatus cost increases

Engineering Contradiction:
Improvewireless communication reliabilityVSAvoidcommunication circuit quantity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent makes the wireless LAN communication circuit capable of performing both wireless LAN communication and BLE communication functions. The circuit selectively operates in different modes (wireless LAN mode or BLE mode) based on communication requirements, eliminating the need for separate dedicated circuits for each protocol while maintaining reliable communication capabilities.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If separate communication circuits are used for wireless LAN and BLE, then communication functionality is ensured, but power consumption increases

Engineering Contradiction:
Improvecommunication functionalityVSAvoidpower consumption
Core Design Contradiction:
Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

By designing a single wireless communication circuit that can operate in different modes (wireless LAN mode and BLE mode), the patent reduces the number of active circuits needed. When BLE communication is required, the circuit switches to BLE mode with lower power consumption characteristics, rather than keeping a separate BLE circuit continuously active or running a full wireless LAN circuit for low-power operations.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Device complexity

If a common communication circuit is used for wireless LAN and NAN, then apparatus cost is reduced, but communication protocol compatibility becomes challenging

Engineering Contradiction:
Improvecommunication circuit quantityVSAvoidprotocol compatibility
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent implements a dynamic mode switching mechanism in the common wireless communication circuit. The circuit can dynamically transition between wireless LAN mode and NAN mode based on the communication requirements. This dynamic adaptability allows a single circuit to handle different protocols effectively, resolving the protocol compatibility challenge while maintaining hardware simplicity.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS10791580B2Communication apparatus, communication method, and non-transitory computer-readable storage medium
Publication Date: 2020.09.29 CANON KK
  • US10791580B2 patent drawing
  • US10791580B2 patent drawing
  • US10791580B2 patent drawing

AI summary

A communication apparatus that performs first wireless communication in accordance with a Neighbor Awareness Network (NAN) and second wireless communication using a communication circuit common with the first wireless communication is provided. The communication apparatus performs the first wireless communication so as to transmit identification information of the communication apparatus as a predetermined transmission in response to a start of the first wireless communication, and to advertise a service providable by the communication apparatus in response to a response from a terminal apparatus with respect to the predetermined transmission. The communication apparatus performs the second wireless communication to provide the service with the terminal apparatus which has detected the service by advertisement of the service using the first wireless communication.