List of PPDUs Supported in 802.11v ======================================== .. 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 PPDU formats?** No, 802.11v uses existing PPDU formats defined by the underlying PHY standard (e.g., 802.11n/ac/ax). .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **What is a PPDU in 802.11 networks?** A PPDU is the unit of data transmitted over the physical medium, including preamble, header, and payload. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Does 802.11v require changes to PHY headers or modulation?** No, it does not change modulation schemes or physical headers. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **How are 802.11v management frames transmitted?** They are encapsulated in standard MAC frames, which are then sent using the regular PPDU format. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Do 802.11v features affect preamble structure?** No, preamble structure remains defined by the underlying PHY layer and is unaffected by 802.11v. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **What PHY layers are compatible with 802.11v PPDU use?** All standardized PHYs (a/b/g/n/ac/ax) support 802.11v without PPDU modification. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Is a new preamble used for 802.11v functions?** No, the same preambles used by the PHY standard are used for 802.11v frames. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Are 802.11v messages encrypted inside PPDUs?** If encryption is enabled at the MAC layer (e.g., WPA2/3), the payload within the PPDU can be encrypted. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Can 802.11v use both 2.4 GHz and 5 GHz PPDU formats?** Yes, 802.11v operates over any band supported by the PHY, using the respective PPDU format. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Is there a PPDU distinction between 802.11v and legacy traffic?** No, all traffic—whether related to 802.11v or not—uses the same PPDU formats. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Does 802.11v affect the duration field in PPDUs?** No, duration and other physical-level parameters are governed by the PHY and MAC framing. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Can 802.11v PPDU payloads carry control information?** Yes, MAC-layer control frames (e.g., BSS Transition Management) are encapsulated in standard PPDUs. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **How does 802.11v coexist with legacy PPDU devices?** Seamlessly, because no changes are made to PPDU formats or PHY-layer signaling. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Are beamforming and MU-MIMO affected by 802.11v?** No, these are PHY features unaffected by 802.11v, though better AP selection may improve performance. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Can 802.11v frames be prioritized at the PPDU level?** Prioritization happens at the MAC layer using QoS; the PPDU just carries the result. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **How does the 802.11v feature BSS Transition use PPDUs?** The transition management frames are encapsulated in MAC frames, transmitted via standard PPDUs. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Are 802.11v messages affected by channel bandwidth at the PPDU level?** Only in terms of PHY capabilities; 802.11v messages follow the rules of the chosen bandwidth. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Do 802.11v-enabled devices need PHY changes to handle PPDUs?** No, they use existing PHY implementations without any modification. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Does 802.11v use any special signaling at the PPDU level?** No, all signaling for 802.11v occurs at MAC and management frame levels. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Why doesn’t 802.11v require new PPDU types?** Because it’s a MAC layer enhancement—it relies on existing physical infrastructure and formats. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow Topics in this section, * :ref:`Reference links ` .. _ppdu_v_step17: .. tab-set:: .. tab-item:: Reference links * Reference links