Power Saving Mechanisms in IEEE 802.11u protocol
Does IEEE 802.11u define new power saving mechanisms?
No, 802.11u primarily focuses on network interworking and does not introduce new power saving methods.
How does 802.11u impact power saving in Wi-Fi devices?
By enabling efficient network selection and roaming, 802.11u helps devices reduce time spent searching and associating, saving power indirectly.
Are traditional power saving features like Power Save Mode (PSM) still applicable in 802.11u?
Yes, traditional MAC-layer power saving mechanisms such as PSM remain fundamental for energy efficiency.
Does 802.11u support enhanced mechanisms for devices in public networks to save power?
Indirectly, yes—by enabling devices to discover and select appropriate networks quickly, reducing unnecessary active scanning.
What role do Access Network Query Protocol (ANQP) features in 802.11u play in power saving?
ANQP helps devices query network capabilities efficiently, minimizing repeated scans and preserving battery life.
Can 802.11u improve power saving during roaming?
Yes, by enabling faster and seamless roaming, devices spend less time and energy negotiating new connections.
Is power saving coordinated between client and AP in 802.11u?
Power saving coordination remains managed by underlying 802.11 standards; 802.11u adds network selection features but not direct power management protocols.
Does 802.11u interact with IEEE 802.11e (QoS) for power saving?
While related, 802.11u focuses on interworking; QoS-related power saving features are handled primarily by 802.11e.
How does 802.11u help reduce power consumption in dense network environments?
By providing better network information and selection options, it reduces the need for frequent scans and associations, saving energy.
Does 802.11u require hardware changes to support power saving?
No, it utilizes existing hardware capabilities defined by base 802.11 standards.
Can 802.11u’s interworking with cellular networks aid power saving?
Yes, by facilitating smooth handoffs between Wi-Fi and cellular, devices can manage connections more efficiently, conserving battery.
Is power saving considered in the 802.11u Access Network Discovery and Selection Function (ANDSF)?
ANDSF policies can help devices connect to the best network quickly, indirectly contributing to power efficiency.
Are multicast or broadcast power saving improvements part of 802.11u?
No direct changes; these remain under traditional 802.11 power save protocols.
Does 802.11u address power saving in mesh or ad-hoc networks?
No, it mainly targets infrastructure networks and interworking, not mesh-specific power features.
How does 802.11u influence scanning behavior for power saving?
By providing network info via ANQP, devices can avoid unnecessary active scans, conserving power.
Does 802.11u provide mechanisms to prioritize power saving during network selection?
It supports network selection policies that can factor power efficiency among selection criteria.
Are power saving states like doze or sleep managed by 802.11u?
No, these are managed by underlying 802.11 power management protocols.
Where can I find more details on power saving in 802.11u?
Refer to the IEEE 802.11u amendment documentation and related base 802.11 standards for comprehensive power saving mechanisms.
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