The number of additional SSW slots in a beacon interval shall be equal to the value of the A-BFT Length subfield multiplied by the value of the A-BFT Multiplier subfield, where both of these subfields are present in the DMG Beacon frame, and the A-BFT Multiplier subfield is indicated using reserved bits from the Beacon Interval Control field of the DMG Beacon frame. Figure 10-71 depicts how non-EDMG STAs interpret the insertion of the added SSW slots in the beacon interval. Figure 10-71: Additional SSW slots for use by EDMG STAs in relation to the legacy A-BFT When Next A-BFT is equal to 0 and A-BFT Multiplier is greater than 0, the value of the Duration field within all DMG Beacons shall be increased by A-BFT Length multiplied by A-BFT Multiplier plus the length of an MBIFS to accommodate the additional SSW slots. This guarantees that non-EDMG STAs calculate the correct start time for the legacy A-BFT.
The number of additional SSW slots in a beacon interval shall be equal to the value of the A-BFT Length subfield multiplied by the value of the A-BFT Multiplier subfield, where both of these subfields are present in the DMG Beacon frame, and the A-BFT Multiplier subfield is indicated using reserved bits from the Beacon Interval Control field of the DMG Beacon frame. Figure 10-71 depicts how non-EDMG STAs interpret the insertion of the added SSW slots in the beacon interval. Figure 10-71: Additional SSW slots for use by EDMG STAs in relation to the legacy A-BFT When Next A-BFT is equal to 0 and A-BFT Multiplier is greater than 0, the value of the Duration field within all DMG Beacons shall be increased by A-BFT Length multiplied by A-BFT Multiplier plus the length of an MBIFS to accommodate the additional SSW slots. This guarantees that non-EDMG STAs calculate the correct start time for the legacy A-BFT.
11-16-1638-00-00ay-3-2-1-a-bft.docx