Access Point TXOP Sharing via Traffic-Aware AP Selection

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Solution Overview

Problem

Existing wireless communication systems lack efficient methods for APs to share transmit opportunities (TXOP) with other APs, as the APs are often unaware of the needs of other APs, leading to suboptimal resource allocation and increased processing overhead.

Innovation Solution

A wireless access point (AP) receives information about conditions for medium access from a set of wireless communication devices, performs medium access coordination with a subset of these devices, and transmits frames to select devices to share a portion of the TXOP based on traffic conditions and responses, optimizing resource use.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If APs use long-term negotiations to establish coordination parameters, then adaptability and capability exchange are improved, but processing overhead and time consumption increase

Engineering Contradiction:
Improvecoordination capabilityVSAvoidnegotiation time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent applies preliminary action by having APs pre-establish coordination parameters and capabilities during long-term negotiations, so that when TXOP sharing is needed, the AP can quickly select from pre-agreed parameters without performing complex real-time negotiations. This resolves the contradiction by preparing adaptive coordination frameworks in advance while reducing on-demand processing time.

Inventive Principle:
Principle #10Preliminary action

2Measurement precision

If APs perform comprehensive medium access coordination with all devices, then coordination accuracy is improved, but processing overhead increases

Engineering Contradiction:
Improvetraffic condition awarenessVSAvoidcoordination processing
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent applies partial action by having the TXOP owner AP coordinate medium access only with a subset of APs rather than all neighboring APs. The AP selects coordination partners based on traffic conditions and coordination benefits, performing comprehensive coordination only when necessary and with relevant partners, thus reducing processing overhead while maintaining sufficient coordination accuracy.

Inventive Principle:
Principle #16Partial or excessive action

3Productivity

If the TXOP owner AP shares TXOP with more APs, then resource allocation efficiency is improved, but the complexity of managing multiple APs increases

Engineering Contradiction:
Improveresource utilizationVSAvoidAP management
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent applies dynamics by enabling the TXOP owner AP to dynamically adjust which APs receive TXOP sharing based on real-time traffic conditions. The AP can adaptively select coordination partners and adjust coordination parameters during operation, allowing flexible resource allocation efficiency while managing complexity through dynamic rather than static decision-making.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS20250386372A1Access point selection for transmit opportunity sharing
Publication Date: 2025.12.18 QUALCOMM INC
  • US20250386372A1 patent drawing
  • US20250386372A1 patent drawing
  • US20250386372A1 patent drawing

AI summary

This disclosure provides methods, components, devices and systems for access point (AP) selection for transmit opportunity (TXOP) sharing. Some aspects more specifically relate to how a first AP may select APs to share a portion of a TXOP with. The first AP may perform medium access coordination with candidate APs, including polling candidate APs and receiving response frames. The response frames may indicate whether, for each responsive AP, the responsive AP is to participate in the TXOP sharing and, if so, information associated with traffic occurring during the TXOP. The first AP may select the APs to share the portion of the TXOP with according to the response frames. The first AP may transmit a frame including an indication to share the portion of the TXOP with the APs. The APs may, in accordance with receiving the frame, communicate during the portion of the TXOP.