802.11v Channels =================== .. 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 **Does 802.11v define new channels?** No, 802.11v uses standard channels as defined in 802.11 PHY layers like 802.11a/b/g/n. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **What is the role of 802.11v in channel management?** It helps manage client transitions between access points, potentially across different channels. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Can 802.11v be used in both 2.4 GHz and 5 GHz bands?** Yes, 802.11v operates across all bands supported by the device’s PHY layer. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Does 802.11v allow for channel load awareness?** Yes, it allows clients to request and receive channel utilization data for better decision-making. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **What is BSS Transition Management in 802.11v?** It's a feature that helps clients move between APs and potentially across channels for better service. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Can 802.11v help reduce congestion on crowded channels?** Yes, by suggesting transitions to less congested APs on different channels. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Does 802.11v support operation in DFS channels?** Yes, if the underlying PHY and device support DFS (Dynamic Frequency Selection), 802.11v works over them. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **How does 802.11v interact with channel bonding (e.g., 40/80 MHz)?** It can be used over bonded channels, as long as the AP and client support them. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Does 802.11v itself choose the operating channel?** No, channel selection is typically managed by the AP; 802.11v helps clients move between them. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Can 802.11v trigger roaming across channels?** Yes, via BSS Transition Management Requests, clients can be encouraged to roam across different channels. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **What is Channel Report Request in 802.11v?** It allows an AP to request a client to report on the quality of specific channels. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Can clients request available channel info using 802.11v?** Yes, clients can use 802.11v to obtain information on channel conditions and utilization. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Does 802.11v improve channel efficiency?** Indirectly, by optimizing client distribution across channels and APs, it helps improve overall efficiency. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Can 802.11v work with 6 GHz (Wi-Fi 6E) channels?** Yes, if the PHY layer and device support 6 GHz, 802.11v operates transparently over them. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **How is interference handled with 802.11v?** 802.11v doesn't mitigate interference directly, but helps clients avoid congested or interfered channels. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Are there channel width constraints for 802.11v?** No, it supports all widths (20/40/80/160 MHz) supported by the PHY and the device. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Is automatic channel selection part of 802.11v?** Not directly; it supports AP recommendation and transition, but not the actual channel selection algorithm. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Does 802.11v improve spectrum utilization?** Yes, by enabling smarter client steering and load balancing across channels. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Is 802.11v required for band steering?** No, but it can enhance band steering by providing standardized client transition mechanisms. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Can 802.11v influence multi-band operation (2.4 GHz, 5 GHz, 6 GHz)?** Yes, it helps steer clients between APs operating on different bands for optimal performance. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow Topics in this section, * :ref:`List of channels ` * :ref:`List of channel widths ` * :ref:`List of Bands ` * :ref:`Reference links ` .. _channels_v_step4: .. tab-set:: .. tab-item:: 2.4 GHz Channels for 802.11v ===================== ======================= ====================== ============== Channel Number (MHz) Center Frequency (MHz) Frequency Range DFS Required ===================== ======================= ====================== ============== 1 2412 2401 – 2423 No 2 2417 2406 – 2428 No 3 2422 2411 – 2433 No 4 2427 2416 – 2438 No 5 2432 2421 – 2443 No 6 2437 2426 – 2448 No 7 2442 2431 – 2453 No 8 2447 2436 – 2458 No 9 2452 2441 – 2463 No 10 2457 2446 – 2468 No 11 2462 2451 – 2473 No 12 2467 2456 – 2478 No (region dependent) 13 2472 2461 – 2483 No (region dependent) 14 2484 2473 – 2495 No (Japan only) ===================== ======================= ====================== ============== .. tab-item:: 5 GHz Channels for 802.11v ===================== ======================= ====================== ============== Channel Number (MHz) Center Frequency (MHz) Frequency Range DFS Required ===================== ======================= ====================== ============== 36 5180 5170 – 5190 No 40 5200 5190 – 5210 No 44 5220 5210 – 5230 No 48 5240 5230 – 5250 No 52 5260 5250 – 5270 Yes 56 5280 5270 – 5290 Yes 60 5300 5290 – 5310 Yes 64 5320 5310 – 5330 Yes 100 5500 5490 – 5510 Yes 104 5520 5510 – 5530 Yes 108 5540 5530 – 5550 Yes 112 5560 5550 – 5570 Yes 116 5580 5570 – 5590 Yes 120 5600 5590 – 5610 Yes 124 5620 5610 – 5630 Yes 128 5640 5630 – 5650 Yes 132 5660 5650 – 5670 Yes 136 5680 5670 – 5690 Yes 140 5700 5690 – 5710 Yes 144 5720 5710 – 5730 Yes 149 5745 5735 – 5755 No 153 5765 5755 – 5775 No 157 5785 5775 – 5795 No 161 5805 5795 – 5815 No 165 5825 5815 – 5835 No ===================== ======================= ====================== ============== .. _channels_v_step5: .. tab-set:: .. tab-item:: List of channel widths * channel widths .. _channels_v_step6: .. tab-set:: .. tab-item:: List of Bands ======================= ====================== ====================== ============================================================ Band Name Frequency Range (GHz) Frequency Range (MHz) Channels ======================= ====================== ====================== ============================================================ 2.4 GHz Band 2.400 – 2.485 2400 – 2485 1 – 14 (region dependent) UNII-1 5.150 – 5.250 5150 – 5250 36, 40, 44, 48 UNII-2 (DFS) 5.250 – 5.350 5250 – 5350 52, 56, 60, 64 UNII-2 Extended (DFS) 5.470 – 5.725 5470 – 5725 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144 UNII-3 5.725 – 5.825 5725 – 5825 149, 153, 157, 161, 165 ======================= ====================== ====================== ============================================================ .. _channels_v_step17: .. tab-set:: .. tab-item:: Reference links * Reference links