Zone#, FUSC (Advanced 802.16 OFDMA)

1. Zone Settings

Permutation Base

Range: 0 to 31

Select the permutation base used for subchannel randomization in this zone.

Refer to section 8.3.5.3.4, STC DL Zone IE format, section 8.3.9.4, Modulation, and section 8.3.6, OFDMA subcarrier allocation in P802.16Rev2/D6 for standard specifications.

PRBS ID

Range: 0 to 3

Set the PRBS ID (0 to 3) in the zone used for subchannel randomization.

Refer to section 8.3.5.3.4, STC DL Zone IE format, section 8.3.9.4, Modulation, and section 8.3.6, OFDMA subcarrier allocation in P802.16Rev2/D6 for standard specifications.

2. Allocation Settings

Number of Symbols

Specify the number of symbols in this zone.

The value must be integral times of 2 for DL PUSC because DL PUSC is divided into slots of 2 symbols x 1 subchannel (section 8.3.3.1 in P802.16Rev2/D6) and be integral times of 2 or 3 for DL AMC because we support 3 Bins by 2 Symbols, 2 Bins by 3 Symbols, 1/2 Bin(s) by 6 Symbols AMC types (section 8.3.6.3 in P802.16Rev2/D6).

Symbol Offset

Displays how much (in symbols) the zone is offset from the downlink preamble. It depends on the number of symbols used for any previously added zones.

Max. Number of Subchannels

This cell displays the maximum number of subchannels per symbol for this zone, based on the FFT size.

Auto Allocation

Select whether the bursts will be automatically generated (On) or manually allocated (Off). With auto allocation on, the software will configure the bursts based on the number of assigned slots and maximum number of subchannels available in the zone, avoiding any burst overlap where possible. Selecting auto allocation off activates the symbol and subchannel offsets in the burst editing window which can be edited for manual burst allocation.

Use this cell to automatically select (On) or manually select (Off) how the bursts will be allocated in the zone. Selecting off enables you to edit the symbol and subchannel offsets and the assigned slots cells in the burst editing window.

Downlink Burst

Use the Add button to add a new burst. When a burst is added, the software displays the burst in the tree view and adds it to the frame plot view.

Use the Delete button to delete the selected burst. The burst to be deleted is indicated by the in the first column.

Use the Copy button to add a new burst that has the same configuration as the currently selected one (indicated by the in the first column).

Use the Up and Down arrows to reposition the currently selected burst (indicated by the in the first column).

Burst#

Range: 1 to 16

Displays the burst index number.

Modulation & Coding

Use the pull down menu to select a modulation and coding type. See also Modulation and Coding.

Repetition

Choices: None, 2, 4, 6

Use the pull-down menu to select the number of times the data is repeated. See also Repetition Coding.

# of Syms

Displays the number of symbols assigned for this burst. See also Number of Symbols.

Sym Offs

Displays the symbol offset of the burst. See also Symbol Offset.

# of Subchs

Displays the number of subchannels assigned for the burst. See also Number of Subchannels.

Subch Offs

Displays the subchannel offset for the burst. See also Subchannel Offset.