Conditional non-primary channel access operation

The conditional non-primary channel access operation addresses inefficiencies in wireless communication systems by optimizing channel access and resource allocation, reducing interference, and enhancing network performance through coordinated multi-user operations.

WO2026096410A2 Publication Date: 2026-05-07ZHANG JIAYI +7
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Patent Information

Application Number
PCT/US2025/052766
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-11-14
Filing Date
2025-10-28
Publication Date
2026-05-07

AI Technical Summary

Technical Problem

Existing wireless communication systems face inefficiencies in managing non-primary channel access, leading to interference and suboptimal resource utilization in multi-user scenarios, particularly in environments with hidden nodes and overlapping basic service sets.

Method used

Implementing a conditional non-primary channel access operation (NPCA) mechanism that utilizes trigger frames and user info fields to manage channel access and resource allocation more effectively, ensuring coordinated and interference-free transmissions among stations and access points.

Benefits of technology

Enhances channel access efficiency, reduces interference, and optimizes resource utilization by providing a framework for coordinated multi-user operations, thereby improving overall network performance and throughput.

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Abstract

A station (STA) determines that a physical layer (PHY) protocol data unit (PPDU) being received via a primary channel (PCH) comprises an inter-basic service set (inter-BSS) PPDU. Based on determining that the PPDU being received via the PCH comprises the inter-BSS PPDU, the STA switches from the PCH to a non-primary channel access (NPCA) PCH based on an intra-BSS network allocation vector (NAV) of the STA being equal to zero.
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