Power Saving Mechanisms in IEEE 802.11k protocol ================================================== .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **What is the goal of power saving mechanisms in 802.11k?** To optimize energy consumption in wireless devices while maintaining effective network measurement and management. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **How does 802.11k assist power saving in Wi-Fi clients?** By providing measurement reports and neighbor info that reduce the need for active scanning and probing. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **What role do measurement reports play in power saving?** They allow clients to learn about network conditions passively, minimizing active channel scans and conserving battery. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Does 802.11k define specific power save states?** 802.11k complements existing power save states (like IEEE 802.11e APSD) but focuses on efficient measurement processes. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **How does neighbor reporting improve power efficiency?** By informing clients about nearby APs, enabling quicker roaming decisions without frequent active scans. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Can 802.11k measurement requests be scheduled to save power?** Yes, measurement requests can be coordinated to minimize active periods and reduce wake times. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **How do clients use passive measurements for power saving?** Clients listen to beacon frames and other management frames to gather data without transmitting, conserving energy. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **What is the impact of 802.11k on active scanning duration?** It significantly reduces active scanning frequency and duration, lowering power consumption. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Are power saving and measurement reporting compatible in 802.11k?** Yes, 802.11k is designed to balance timely measurement reporting with minimal energy use. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **How does 802.11k handle power saving in dense Wi-Fi environments?** By enabling targeted measurements and reports, it reduces unnecessary channel scans and power use. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Do 802.11k power saving features require AP support?** Yes, APs must support measurement requests and reporting mechanisms to facilitate client power saving. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Can 802.11k reduce the need for probe requests?** Yes, by using neighbor reports and passive data, it lowers the reliance on active probe requests. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **How does 802.11k integrate with 802.11e APSD for power saving?** They work together by coordinating QoS traffic delivery with measurement timing to optimize wake/sleep cycles. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **What measurement types in 802.11k are power-saving friendly?** Passive measurements, beacon reports, and neighbor reports minimize client transmission and energy use. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Can clients delay measurement reporting to save power?** Yes, reports can be buffered and sent during scheduled awake periods to conserve energy. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **How does 802.11k improve battery life in mobile devices?** By reducing scanning overhead and enabling smarter, less frequent measurements. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Is there any trade-off between power saving and measurement accuracy?** Some trade-offs exist, but 802.11k aims to optimize both by scheduling and selective measurement. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **How does 802.11k help reduce airtime usage for measurements?** By enabling concise, targeted measurement frames, it reduces overall channel occupancy. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Are 802.11k power saving mechanisms compatible with all client devices?** They require client firmware and driver support for measurement and power save coordination. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **What future enhancements could improve 802.11k power saving?** Integration with newer standards like 802.11ax, enhanced scheduling, and AI-based measurement control. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow Topics in this section, * :ref:`Reference links ` .. _power_save_k_step17: .. tab-set:: .. tab-item:: Reference links * Reference links