Aggregating IP Packets in Layer-2 Frames for Wireless Stations

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Solution Overview

Problem

Existing wireless network configurations are inefficient when transmitting multiple IP packets to different destinations, as they require each packet to contend for the wireless transmission medium separately, leading to increased power consumption and time for data transfer.

Innovation Solution

A method where a wireless station assembles multiple IP packets into a single layer-2 frame, which is then transmitted to an access point, allowing the access point to disassemble and forward each packet separately to its corresponding destination, reducing the need for multiple medium contentions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple IP packets are transmitted separately to different destinations, then each packet can be delivered to its specific destination, but the wireless station must contend for the medium multiple times, increasing power consumption and transfer time

Engineering Contradiction:
Improvedelivery reliabilityVSAvoidtransfer time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent merges multiple separate IP packet transmissions into a single aggregated transmission. The wireless station transmits all IP packets to multiple destinations within one medium access, eliminating repeated medium contentions. This combining approach reduces total transfer time while maintaining reliable delivery to each destination through proper addressing and forwarding at the access point.

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If multiple IP packets are transmitted separately to different destinations, then each packet can be delivered to its specific destination, but the wireless station must contend for the medium multiple times, increasing power consumption

Engineering Contradiction:
Improvedelivery reliabilityVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent combines multiple IP packet transmissions into a single aggregated transmission event. By transmitting all packets within one medium access, the wireless station avoids repeated activation of its radio transmitter, thereby significantly reducing power consumption while ensuring reliable delivery to all destinations through the access point's forwarding capability.

Inventive Principle:
Principle #5Merging (Combining)

3Ease of operation

If multiple IP packets are transmitted separately to different destinations, then routing to specific destinations is simplified, but the overall data transfer efficiency decreases

Engineering Contradiction:
Improverouting simplicityVSAvoiddata transfer efficiency
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The patent merges multiple IP packets into a single transmission unit, dramatically improving data transfer efficiency by eliminating repeated medium contentions. The access point handles the complexity of separating and forwarding packets to different destinations, allowing the wireless station to benefit from improved efficiency without承担ing routing complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The access point serves as an intermediary that receives the aggregated transmission containing multiple IP packets, disassembles them, and forwards each packet to its appropriate destination. This intermediary approach allows the wireless station to transmit efficiently in a single medium access while maintaining simple routing logic, as the access point handles the destination-specific forwarding.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS10270890B2Transmitting IP packets originating in a wireless station when the IP packets are destined for delivery to multiple destinations via an access point
Publication Date: 2019.04.23 TELIT IOT SOLUTIONS INC
  • US10270890B2 patent drawing
  • US10270890B2 patent drawing
  • US10270890B2 patent drawing

AI summary

A wireless station of a wireless network generates a single layer-2 frame containing multiple layer-3 packets in its payload. Each of the multiple layer-3 packets is destined to a corresponding different destination. The wireless station transmits the layer-2 frame to an access point (AP) of the wireless network. The AP receives the layer-2 frame, disassembles the payload into individual layer-3 packets, and transmits each of the individual layer-3 packets separately towards the corresponding destinations. In an embodiment, the wireless network is according to IEEE 802.11 standards, each layer-3 packet is an IP packet, and the layer-2 frame is a MAC frame.