The context and the presence of each optional subfields in a Per STA Info subfield in a Multi-STA BlockAck frame is as defined in Table 9-24b (Context of the Per STA Info subfield and presence of optional subfields). Context of the Per STA Info subfield and presence of optional subfields Ack TID Type Presence of optional subfields Context of a Per STA Info field in a subfield in the Per STA Info field BlockAck frame value values 0 0-7 Block Ack Starting Sequence Present acknowledgment context: Control Sent as a response to an A-MPDU that solicits an immediate block Block Ack Bitmap Present acknowledgement or to a BAR frame 1 0-7 Block Ack Starting Sequence Not present Acknowledgment context Control : Sent as a response to an MPDU or VHT Single MPDU that solicits an immediate Block Ack Bitmap Not present acknowledgment 0 or 1 8 to 13 N/A N/A Reserved 0 14 N/A N/A Reserved 1 14 Block Ack Starting Sequence Not present Allcontext Control : Sent as a response to an A-MPDU that Block Ack Bitmap Not present solicits an immediate response and all MPDUs contained in the A-MPDU are received successfully 0 15 N/A N/A Reserved 1 15 Block Ack Starting Sequence Not present Action frame acknowledgment context Control : Sent as a response to an Action Ack frame [CID 3162] Not present carried in an A-MPDU that solicits an immediate acknowledgment If the Ack Type is 0, the Fragment Number subfield defined in Table 9-24c (Fragment Number subfield encoding for the Multi-STA BlockAck variant). Fragment Number subfield encoding for the Multi-STA BlockAck variant
The context and the presence of each optional subfields in a Per STA Info subfield in a Multi-STA BlockAck frame is as defined in Table 9-24b (Context of the Per STA Info subfield and presence of optional subfields). Context of the Per STA Info subfield and presence of optional subfields Ack Type subfield value TID values Presence of optional subfields in the Per STA Info field Context of a Per STA Info field in a BlockAck frame 0 0-7 Block Ack Starting Sequence Control Present acknowledgment context: Sent as a response to an A-MPDU that solicits an immediate block acknowledgement or to a BAR frame Block Ack Bitmap Present 1 0-7 Block Ack Starting Sequence Control Not present Acknowledgment context : Sent as a response to an MPDU or VHT Single MPDU that solicits an immediate acknowledgment Block Ack Bitmap Not present 0 or 1 8 to 13 N/A N/A Reserved 0 14 N/A N/A Reserved 1 14 Block Ack Starting Sequence Control Not present Allcontext : Sent as a response to an A-MPDU that solicits an immediate response and all MPDUs contained in the A-MPDU are received successfully Block Ack Bitmap Not present 0 15 N/A N/A Reserved 1 15 Block Ack Starting Sequence Control Not present Action frame acknowledgment context : Sent as a response to an Action Ack frame carried in an A-MPDU that solicits an immediate acknowledgment [CID 3162] Not present If the Ack Type is 0, the Fragment Number subfield defined in Table 9-24c (Fragment Number subfield encoding for the Multi-STA BlockAck variant). Fragment Number subfield encoding for the Multi-STA BlockAck variant
11-17-0306-03-00ax-crs-for-section-9-3-1-8-9-3-1-9-7.docx