WLAN Message Forwarding via Intermediary Storage

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Solution Overview

Problem

Mobile devices often face challenges in sending and receiving messages due to weak or absent cellular signals, network congestion, or roaming, which can result in high messaging charges and delivery failures.

Innovation Solution

Implementing a system that allows messages to be sent and received via a wireless local area network (WLAN) instead of a cellular network, using a messaging device to forward messages from a sending device to a storage device and then to a receiving device via WLAN, and managing synchronization to ensure delivery reports are sent correctly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If messages are sent via cellular network, then message delivery is possible, but messaging charges increase and delivery failures occur due to weak signals or network congestion

Engineering Contradiction:
Improvemessage delivery reliabilityVSAvoidmessaging charges and delivery failures
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a WLAN network as an intermediary communication path between sending and receiving devices. When cellular network conditions are poor (weak signals, congestion, or roaming), messages are routed through WLAN infrastructure instead, avoiding the harmful effects of cellular network issues while maintaining reliable message delivery

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system dynamically changes the communication parameter (network type) from cellular to WLAN based on network conditions. By detecting cellular network quality and switching to alternative WLAN pathways, the system optimizes message delivery reliability while reducing charges and avoiding delivery failures

Inventive Principle:
Principle #35Parameter changes

2Productivity

If messages are sent via cellular network, then message transmission is possible, but network congestion and roaming cause delivery failures

Engineering Contradiction:
Improvemessage transmission capabilityVSAvoidmessage delivery success rate
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

WLAN network serves as a mediator that bypasses cellular network congestion and roaming limitations. The system routes messages through WLAN infrastructure when cellular pathways are blocked or congested, maintaining transmission productivity while ensuring reliable delivery

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system dynamically selects communication pathways based on real-time network conditions. It monitors cellular network status and automatically switches between cellular and WLAN networks, adapting the transmission route to maintain both productivity and reliability under varying conditions

Inventive Principle:
Principle #15Dynamics

3Object-affected harmful factors

If messages are sent via WLAN instead of cellular network, then messaging charges are reduced, but system complexity increases due to multiple network paths

Engineering Contradiction:
Improvemessaging chargesVSAvoidsystem architecture complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The messaging device acts as an intermediary that manages the complexity of multiple network paths. It handles the logic of selecting between cellular and WLAN networks, absorbing the system complexity while enabling charge reduction benefits for end users without requiring them to manage the complexity directly

Inventive Principle:
Principle #24Intermediary (Mediator)

4Reliability

If messages are routed through messaging device and storage device via WLAN, then message delivery is enabled without cellular signal, but synchronization management becomes more complex

Engineering Contradiction:
Improvemessage delivery capabilityVSAvoidsynchronization management complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The messaging device and storage device serve as intermediaries that manage synchronization between WLAN and cellular networks. They handle the complexity of coordinating message delivery across multiple pathways, ensuring reliability by managing synchronization while keeping the complexity contained within the infrastructure rather than the end devices

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS9654940B2Sending and receiving messages over wireless local area networks
Publication Date: 2017.05.16 CELLCO PARTNERSHIP INC
  • US9654940B2 patent drawing
  • US9654940B2 patent drawing
  • US9654940B2 patent drawing

AI summary

A device may receive a text message or a multimedia message to be received by a receiving device. The message may be stored by one or more storage devices. The device may determine that the message is to be received by the receiving device via a wireless local area network (WLAN). The device may send, to the receiving device, a notification associated with the message. The device may identify a storage device, of the one or more storage devices, to provide the message to the receiving device. The device may manage a synchronization between the receiving device and the storage device via the WLAN. The synchronization may cause the message to be received by the receiving device. The device may receive an indication that the receiving device has received the message, and may provide closure information. The closure information may prevent the message from being delivered via a cellular network.