Transmission Suppression Control for Wireless Resource Efficiency

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Solution Overview

Problem

Existing wireless communication technologies face inefficiencies in managing transmission suppression periods to avoid packet collisions, leading to suboptimal use of wireless resources, especially when apparatus positions result in low packet collision likelihood.

Innovation Solution

Implementing a method to control transmission suppression periods for each of multiple transmission power levels based on received frames, allowing for efficient power management and resource utilization by setting Network Allocation Vectors (NAV) for each transmission power class.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a transmission suppression period is set to avoid packet collisions, then packet collision avoidance is improved, but wireless resource utilization deteriorates

Engineering Contradiction:

Improvepacket collision avoidanceVSAvoidwireless resource utilization

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The transmission suppression period is segmented into multiple power levels (first power level and second power level). The apparatus can selectively suppress transmissions at different power levels independently, allowing finer control over when and how transmissions are blocked, thereby improving resource utilization while maintaining collision avoidance.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different transmission suppression periods are applied to different power levels based on local conditions. The first transmission suppression period applies to frames at the first power level, while the second transmission suppression period applies to frames at the second power level. This localized control allows optimal resource usage in each power level context.

Inventive Principle:

Principle #3Local quality

2Device complexity

If a single transmission suppression period is set for all power levels, then packet collision avoidance is simplified, but resource efficiency deteriorates

Engineering Contradiction:

Improvetransmission suppression controlVSAvoidresource efficiency

Core Design Contradiction:

Device complexityVSProductivity

Solution Approach 1:

The single transmission suppression period is segmented into multiple power-level-specific periods. The control unit maintains separate first and second transmission suppression periods for first and second power levels respectively, enabling differentiated resource management without excessive complexity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The transmission suppression periods are made dynamic and adaptive to different power levels. The control unit can independently adjust the first transmission suppression period for first power level frames and the second transmission suppression period for second power level frames, allowing flexible resource allocation based on current network conditions.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentEP3402295B1Information processing apparatus, communication system, information processing method, and program

Publication Date: 2023.06.21 SONY GROUP CORP

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AI summary

To efficiently use wireless resources. An information processing apparatus is an information processing apparatus including: a control unit. This control unit controls, in a case of receiving a frame for setting a transmission suppression period, a transmission suppression period for each of a plurality of transmission power levels on the basis of the frame. Further, the control unit performs control of recording reception power of a first frame for requesting data transmission and transmission power of a second frame to be transmitted in response to the first frame, in the second frame, and of transmitting the second frame.