Wireless Terminal SSID Generation for Stable Ad Hoc Networks

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Solution Overview

Problem

In wireless networks, especially ad hoc networks without infrastructure, setting up a network identifier like SSID can be complex and unstable due to the need for users to agree on the same SSID, leading to potential connections with undesired networks and difficulty in achieving stable communication when multiple networks coexist.

Innovation Solution

A method and apparatus for efficiently setting up and managing network identifiers in wireless communication terminals, allowing them to search for and connect with other terminals for application execution or data transfer by generating unique SSIDs based on terminal information, reducing the need for user agreement and minimizing interference between networks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If users manually set up SSIDs in ad hoc networks, then connection flexibility is achieved, but network setup complexity and time increase

Engineering Contradiction:

ImproveNetwork setup simplicityVSAvoidTime required for network setup

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The terminal automatically generates and sets SSIDs without requiring manual user input. The system performs self-service by autonomously determining network identifiers based on terminal information, eliminating the need for users to manually configure network parameters and reducing setup time.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The terminal prepares and determines SSIDs in advance before actual network connection is needed. By preliminarily generating network identifiers based on terminal information, the system avoids delays during the actual connection process and enables faster network setup.

Inventive Principle:

Principle #10Preliminary action

2Area of stationary object

If multiple BSSs use the same SSID in the same physical space, then network coverage is expanded, but communication stability deteriorates

Engineering Contradiction:

ImproveNetwork coverage areaVSAvoidCommunication stability

Core Design Contradiction:

Area of stationary objectVSReliability

Solution Approach 1:

Each BSS is assigned a unique SSID that is locally distinctive within its physical space. By ensuring that SSIDs are unique within each local network environment, the system prevents confusion between multiple BSSs while still allowing broad network coverage through the ability to form multiple BSSs in different locations.

Inventive Principle:

Principle #3Local quality

3Adaptability or versatility

If terminals scan all BSSs to find suitable networks, then connection options increase, but search time and processing complexity increase

Engineering Contradiction:

ImproveNetwork selection flexibilityVSAvoidTime required for network search

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The terminal determines suitable BSSs in advance by evaluating network information before actual connection is needed. By preliminarily identifying appropriate networks based on stored terminal information and network conditions, the system reduces the time required during the actual connection process while maintaining flexible network selection.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS8041374B2Application execution method, file data download method, file data upload method, communication method, network identifier setting method and wireless communication terminal

Publication Date: 2011.10.18 SONY INTERACTIVE ENTERTAINMENT LLC

AI summary

A game device is provided with an SSID setting unit and a channel setting unit. The SSID setting unit sets up an SSID (a network identifier) in accordance with a communication mode. Communication modes include a download standby mode, a download mode, a lobby mode and a game mode. By setting up an SSID for each communication mode, wireless networks for respective modes are formed. The channel setting unit sets up a communication channel in accordance with the SSID.