Wireless Frame Transmission Subframe Alignment

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Solution Overview

Problem

In wireless close proximity communication, existing technologies face challenges in efficiently transmitting frames across devices with different subframe unit lengths, leading to inefficiencies in data processing and transmission due to varying payload lengths and the need for padding adjustments.

Innovation Solution

A method where a first wireless communication apparatus receives subframe unit length information from a second apparatus, determines the greatest common subframe unit length, generates subframes with adjustable padding to ensure lengths are multiples of this unit length, and transmits aggregated frames, excluding padding from the last subframe to enhance transmission efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If subframes are generated with fixed unit lengths for each device, then device compatibility is maintained, but transmission efficiency deteriorates due to varying payload lengths and padding requirements

Engineering Contradiction:

Improvedevice compatibilityVSAvoidtransmission efficiency

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent applies parameter changes by dynamically adjusting the subframe unit length based on the actual payload size and device capabilities. Instead of using a fixed unit length, the system determines the optimal unit length that is a multiple of the payload length, thereby improving transmission efficiency while maintaining compatibility across devices with different capabilities.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent implements dynamics by making the subframe unit length variable rather than fixed. The unit length is dynamically determined based on the payload characteristics and device parameters, allowing the system to adapt to different transmission scenarios and optimize performance for each specific case.

Inventive Principle:

Principle #15Dynamics

2Stability of the object's composition

If padding is added to all subframes to achieve uniform length, then alignment across devices is improved, but data processing complexity increases and transmission time is extended

Engineering Contradiction:

Improvesubframe alignmentVSAvoidtransmission time

Core Design Contradiction:

Stability of the object's compositionVSLoss of time

Solution Approach 1:

The patent applies local quality by adding padding selectively only to subframes that require it, rather than uniformly to all subframes. The padding is added only to subframes where the payload length does not naturally align with the determined unit length, thereby achieving necessary alignment while minimizing unnecessary padding and transmission time.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent implements partial action by applying padding only when necessary, rather than excessively to all subframes. The system determines the minimum required padding to achieve proper alignment, avoiding unnecessary padding that would increase transmission time and processing complexity.

Inventive Principle:

Principle #16Partial or excessive action

3Adaptability or versatility

If the greatest common subframe unit length is determined across all devices, then interoperability is maximized, but the determined unit length may be smaller than optimal for individual devices

Engineering Contradiction:

ImproveinteroperabilityVSAvoiddata processing efficiency

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent applies universality by determining a subframe unit length that serves multiple devices simultaneously. The unit length is chosen as a common multiple that works for all devices in the network, enabling universal compatibility while optimizing for the greatest common denominator of device capabilities.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent implements preliminary action by pre-determining the subframe unit length before data transmission begins. The system calculates the optimal unit length based on device capabilities and payload characteristics in advance, allowing subsequent data processing and transmission to proceed efficiently without repeated adjustments.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS10193654B2Frame transmission method and wireless communication apparatus performing the same

Publication Date: 2019.01.29 ELECTRONICS & TELECOMM RES INST

AI summary

A frame transmission method and a wireless communication apparatus performing the same. A frame transmission method performed by a first wireless communication apparatus includes receiving subframe unit length information of a second wireless communication apparatus from the second wireless communication apparatus, determining a subframe unit length of the first wireless communication apparatus based on the received subframe unit length information, generating a plurality of subframes based on the determined subframe unit length, and transmitting a frame in which the generated subframes are aggregated to the second wireless communication apparatus, and wherein, when at least one of the subframes includes a padding, a length of the padding allows a length of the at least one of the subframes including the padding to be a multiple of a natural number of the determined subframe unit length.