Access Point Traffic Suppression for r-TWT Service Periods

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Solution Overview

Problem

Terminals that do not support the r-TWT function experience interruptions in transmission due to the incomplete coverage of transmission suppression periods during service periods, leading to potential disruptions in low-latency traffic exchange.

Innovation Solution

An access point employs an address management part to broadcast group addresses for terminals capable of preferential data exchange, generates a transmission prohibition frame with a service period duration, and transmits a transmission prohibition signal to manage traffic exchange, ensuring terminals not supporting r-TWT function do not interfere during designated periods.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a quiet interval is used to set transmission suppression periods for terminals not supporting r-TWT, then preferential exchange of low-latency traffic can be enabled, but the transmission suppression period does not cover the entire service period, causing potential transmission interruptions

Engineering Contradiction:

Improvepreferential exchange of low-latency trafficVSAvoidtransmission suppression period coverage

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The access point uses a single transmission prohibition frame that serves multiple functions: it suppresses transmissions from non-r-TWT terminals while simultaneously allowing r-TWT terminals to exchange low-latency traffic preferentially throughout the entire service period, resolving the coverage gap issue

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If multiple transmission suppression periods are set during a service period, then preferential traffic exchange can be maintained, but gaps between suppression periods allow interruptions from other terminals

Engineering Contradiction:

Improvelow-latency traffic exchangeVSAvoidtransmission suppression period management

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The access point consolidates multiple transmission suppression periods into a single continuous transmission prohibition period that spans the entire service period, eliminating gaps between suppression periods and simplifying the management of transmission control

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS20260032717A1Access point and terminal

Publication Date: 2026.01.29 NT T INC

AI summary

An access point includes an address management part, a transmission prohibition management part, and a transmission part. The address management part broadcasts a group address of a group set for terminals which are able to perform preferential exchange of data frames during a service period to terminals that are members of the group among the terminals under control thereof. The transmission prohibition management part generates a transmission prohibition frame including a first field storing a time length of the service period and a second field storing the group address. The transmission part transmits a transmission prohibition signal including the transmission prohibition frame to the terminals.