Devices and methods for coordinated spatial reuse in a wireless network
The coordinated spatial reuse scheme improves wireless network efficiency by exchanging CSR parameters in PPDU preambles, reducing interference and optimizing resource use among access points.
WO2026114485A1 Publication Date: 2026-06-04HUAWEI TECH CO LTD +1
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Patent Information
- Application Number
- PCT/EP2024/083639
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2026-06-04
AI Technical Summary
Technical Problem
Existing wireless communication networks face inefficiencies in coordinating spatial reuse among access points, leading to increased interference and suboptimal use of transmission resources.
Method used
Implementing a coordinated spatial reuse scheme where access points exchange control information through a PHY preamble in a PPDU, indicating CSR parameters to control concurrent transmissions by other access points, minimizing interference and optimizing resource use.
Benefits of technology
Enhances network efficiency by reducing overhead and enabling coordinated power control among access points, thereby minimizing interference and optimizing resource utilization.
✦ Generated by Eureka AI based on patent content.
Abstract
An access point, AP, is disclosed for providing network access to one or more non-AP stations associated with the AP and for sharing communication resources of the AP with one or more overlapping basic service set, OBSS, APs in a Multi-AP, M-AP, coordinated transmission under a common M-AP coordination agreement, when the AP obtains a transmission opportunity, TXOP. The AP is configured to transmit during the TXOP a downlink, DL, physical layer protocol data unit, PPDU, to the one or more non-AP stations associated with the AP. The DL PPDU comprises a preamble, wherein the preamble comprises a Coordinated Spatial Reuse, CSR, indication indicative of one or more CSR control parameters for controlling a CSR transmission of a respective further DL PPDU by the one or more OBSS APs to one or more non-AP stations associated with the respective OBSS AP in parallel to the DL PPDU within the TXOP.
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