Bit1: Segment 0 Bit2: Segment 1 Bit3: Segment 2 Used Segment Bitmap 4 bits Bit4 : Reserved Segmentation is only used in distributed relay zone } } for(Zone index=0; Zone index < Number of zones; Zone index++){ The zone starts at the OFDMA symbol offset, OFDMA symbol offset 7 bits counted after the preamble of the frame The zone ends after the zone duration starting Zone duration 5 bits from the OFDMA sysmbol offest. The unit of duration is an OFDMA symbol If (Zone mode == 0){ Access Zone Mode Number of AZDS-MAP IEs in the downstream Number of AZDS-MAP IEs: n 12 bits map for (j = 1; n; { j =< j++) AZDS-MAP_IE() Variable PHY specific (7.7.2.x) } } else if (Zone mode == 1){ Centralized Relay Zone (CRZ) mode Number of CRZDS-MAP IEs in the downstream Number of CRZDS-MAP IEs: n 12 bits map for (j = 1; =<n; { j j++) CRZDS-MAP_IE() Variable PHY specific (7.7.2.x) } } Else if (Zone mode == 2) { Distributed Relay Zone (DRZ) mode SID 13 bits } } } Syntax Size Description AZDS-MAP_IE() { 8 bits Type DIUC 6 bits 7.7.2.x SID 13 bits Station ID of CPE or multicast group. Length 12 bits Number of OFDM slots linearly allocated to the DS burst specified by this IE. Boosting 3 bits 111: +9 dB 110: +6 dB 101: +3 dB 100: 0 dB, normal (not boosted) 011: dB –3 010: dB –6 001: dB –9 000: dB –12 }
Used Segment Bitmap 4 bits Bit1: Segment 0 Bit2: Segment 1 Bit3: Segment 2 Bit4 : Reserved Segmentation is only used in distributed relay zone } } for(Zone index=0; Zone index < Number of zones; Zone index++){ OFDMA symbol offset 7 bits The zone starts at the OFDMA symbol offset, counted after the preamble of the frame Zone duration 5 bits The zone ends after the zone duration starting from the OFDMA sysmbol offest. The unit of duration is an OFDMA symbol If (Zone mode == 0){ Access Zone Mode Number of AZDS-MAP IEs: n 12 bits Number of AZDS-MAP IEs in the downstream map for (j = 1; j =< n; j++) { AZDS-MAP_IE() Variable PHY specific (7.7.2.x) } } else if (Zone mode == 1){ Centralized Relay Zone (CRZ) mode Number of CRZDS-MAP IEs: n 12 bits Number of CRZDS-MAP IEs in the downstream map for (j = 1; j =<n; j++) { CRZDS-MAP_IE() Variable PHY specific (7.7.2.x) } } Else if (Zone mode == 2) { Distributed Relay Zone (DRZ) mode SID 13 bits } } } Syntax Size Description AZDS-MAP_IE() { Type 8 bits DIUC 6 bits 7.7.2.x SID 13 bits Station ID of CPE or multicast group. Length 12 bits Number of OFDM slots linearly allocated to the DS burst specified by this IE. Boosting 3 bits 111: +9 dB 110: +6 dB 101: +3 dB 100: 0 dB, normal (not boosted) 011: –3 dB 010: –6 dB 001: –9 dB 000: –12 dB }
22-13-0074-04-000b-802-22b-general-frame.docx