Zone#1, PUSC (Basic 802.16 OFDMA)

1. Zone Settings 

Power Boost

Range: –12 to 9 dB, in 3 dB increments

Double-click or use the pull down menu to set the relative power offset, in dB.

Modulation Format

Choice: QPSK, 16QAM, 64QAM

Double-click or use the pull down menu to select a modulation type.

Use All Subchannels

Double-click or use the drop-down menu to turn Use All Subchannels On or Off.

This parameter is not available for the first PUSC zone.

Zone Boost

Double-click or use the drop-down menu to turn Zone Boost On or Off.

Zone Boost is not available when Use All Subchannels is On.

Zone Boost Factor

This cell displays the zone boost amplitude in dB when Zone Boost is enabled.

The values used in Zone Boost Factor and Power Boost are summed and applied to the zone when Zone Boost is On. For example, if the Zone Boost Factor is 3.01 dB, and Power Boost is 6 dB, then the final relative amplitude of the zone is –2.99 dB.

2. Allocation Settings

Number of Symbols

Set the number of occupied symbols in this zone.

The value must be an even number because DL PUSC is divided into slots of 2 symbols x 1 subchannel (section 8.4.3.1 in 802.16-2004/Cor/D3). The maximum number of symbols available depends on the bandwidth, frame length, downlink ratio, and other associated parameters. See Closedexample.

Refer to section 8.4.2.3 of the 802.16-2004 standard for parameter definitions.

For a 10 MHz BW:

With a frame length of 5 ms and a 50% downlink ratio selected, there is 2.5 ms available or 24 symbols maximum. (Since one symbol is automatically allocated for the preamble, there will be 22 symbols (must be an even number for DL PUSC) available for the downlink subframe portion.

Symbol Offset

Displays how much the zone is offset from the beginning of the downlink subframe. The symbol offset displayed includes the default preamble (1 symbol).

Max. Number of Subchannels

Displays the maximum number of subchannels per symbol for this zone configuration.

Occupied Slots

Displays the number of slots assigned in this zone.

3. Data

Data Type

Click the button to display the Data Source Selection dialog box. Select the data type used as the payload for this burst.

Data Bit Offset

Range: 0 to 32768

Set the offset for the data bits. This is used to mitigate the correlation between carriers.

Data Length [Bytes]

Displays the number of bytes in the data payload.

If Data Length and the length of the data sequence configured in Data Type do not match, the data sequence is repeated or truncated.