802.11ai PHYs
What PHY standards does 802.11ai build upon?
802.11ai builds upon existing PHY standards like 802.11a/n/ac/ax without modifying the physical layer.
Does 802.11ai introduce new modulation schemes?
No, it uses modulation and coding schemes defined by the underlying PHY standards.
How does 802.11ai utilize PHY measurements?
PHY measurements such as signal strength and link quality assist in network management and client steering.
Are there any PHY layer changes in 802.11ai?
No, 802.11ai does not modify the PHY layer; enhancements are at the MAC and higher layers.
How does 802.11ai support fast initial link setup (FILS) at the PHY?
FILS uses standard PHY structures and signaling to achieve fast authentication and association.
What role does the PHY layer play in power saving for 802.11ai?
PHY layer measurements enable better scheduling of wake/sleep cycles for power efficiency.
Does 802.11ai support beamforming at the PHY?
Beamforming capabilities depend on the underlying PHY standard; 802.11ai does not change this.
Can 802.11ai operate over multiple PHY types simultaneously?
Yes, it is designed to be compatible with various PHYs, depending on device support.
How does 802.11ai PHY support low latency?
By leveraging existing PHY features and efficient MAC protocols, it minimizes delay during connection setup.
Is PHY rate adaptation influenced by 802.11ai?
PHY rate adaptation remains as defined by base standards but benefits from management feedback enabled by 802.11ai.
Does 802.11ai support OFDMA at the PHY?
OFDMA support depends on the underlying PHY (e.g., 802.11ax); 802.11ai uses whatever PHY is present.
How does 802.11ai enhance PHY and MAC coordination?
It uses PHY feedback for MAC-layer decisions such as client steering and power management.
Are new PHY headers introduced in 802.11ai?
No new PHY headers; it uses standard preambles and signaling for compatibility.
Can 802.11ai PHY operate on DFS channels?
Yes, operation on DFS channels is compliant with regulations and underlying PHY capabilities.
How does 802.11ai handle PHY-layer interference?
PHY-layer metrics help detect interference and enable network-assisted mitigation strategies.
Does 802.11ai affect the transmit power settings at the PHY?
Transmit power control is managed per PHY standards; 802.11ai uses these controls for optimization.
Is MIMO supported by 802.11ai PHY?
Yes, MIMO is supported according to the underlying PHY standard.
Where can I find more detailed PHY specifications for 802.11ai?
Detailed PHY specs are found in the IEEE 802.11 PHY amendments such as 802.11a/n/ac/ax, which 802.11ai builds upon.
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