List of PPDUs Supported in 802.11aq ======================================== .. 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 a PPDU in IEEE 802.11aq?** PPDU (Physical Protocol Data Unit) is the data packet format used at the PHY layer to transmit frames over the wireless medium. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **How does the 802.11aq PPDU differ from 802.11ac or 802.11ax?** 802.11aq PPDU incorporates enhancements for service discovery and signaling, adapting to new features while maintaining backward compatibility. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **What are the main components of an 802.11aq PPDU?** It includes a preamble for synchronization, SIGNAL field for rate and length info, and the payload carrying MAC frames. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **What is the role of the preamble in the PPDU?** The preamble enables receiver synchronization and channel estimation before decoding the data. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Does 802.11aq support OFDM modulation in its PPDU?** Yes, 802.11aq uses OFDM for robust and efficient data transmission in the 5 GHz band. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **How does the SIGNAL field affect PPDU operation?** It indicates modulation and coding scheme, data rate, and length of the payload for proper decoding. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Are there new PPDU formats introduced specifically in 802.11aq?** 802.11aq introduces extensions to support enhanced service discovery and pre-association signaling. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **How does the PPDU in 802.11aq support service discovery?** It carries service discovery frames efficiently with minimal overhead, allowing quick detection by clients. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **What modulation and coding schemes (MCS) does 802.11aq PPDU support?** It supports a range of MCS levels similar to 802.11ac/ax for flexible rate adaptation. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **How does 802.11aq ensure backward compatibility in PPDU formats?** By adhering to common preamble structures and signaling fields used in earlier standards. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **What is the significance of the Service field in the PPDU?** It carries control bits and information to facilitate decoding and error correction. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Are there any changes in the tail bits in 802.11aq PPDU?** Tail bits remain similar but may be optimized for improved error detection in new frame types. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **How is channel coding handled in 802.11aq PPDU?** It uses convolutional or LDPC coding schemes depending on the modulation rate. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **What is the maximum PPDU length supported in 802.11aq?** The maximum length is similar to 802.11ac/ax, supporting large payloads for high throughput. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **How does 802.11aq PPDU handle interference and collisions?** Through clear channel assessment and acknowledgment frames at MAC layer, combined with robust PHY coding. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Can 802.11aq PPDU operate on both 5 GHz and 6 GHz bands?** Primarily designed for 5 GHz, but concepts may extend to other bands in newer amendments. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **What is the impact of PPDU structure on power consumption in 802.11aq?** Efficient PPDU formats minimize airtime and enable quicker sleep cycles, conserving power. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **How are acknowledgments handled in relation to PPDU transmissions?** After PPDU reception, ACK frames confirm successful delivery, helping manage retransmissions. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow **Where can I find detailed specifications of 802.11aq PPDU formats?** In the IEEE 802.11aq amendment documentation and related technical papers. .. panels:: :container: container pb-4 :column: col-lg-12 p-2 :card: shadow Topics in this section, * :ref:`Learnings in this section ` * :ref:`Terminology ` * :ref:`Version Info ` * :ref:`ppdu Basic Setup on Ubuntu using IPv4 ` * :ref:`Reference links ` .. _ppdu_step1: .. tab-set:: .. tab-item:: Learnings in this section * In this section, you are going to learn .. _ppdu_step2: .. tab-set:: .. tab-item:: Terminology * Terminology .. _ppdu_step3: .. tab-set:: .. tab-item:: Version Info * Version Info .. _ppdu_step18: .. tab-set:: .. tab-item:: ppdu Basic Setup on Ubuntu using IPv4 * setup .. _ppdu_step17: .. tab-set:: .. tab-item:: Reference links * Reference links