The system supports Sub-Channelization (OFDMA) in the uplink, providing two advantages:
• Ability to connect SUs with relatively poor link conditions: reducing the amount of uplink sub-channels from 16 (full bandwidth) to 8, 4, 2 or 1 sub-channels enables increasing the maximum transmit power of the SU by 3, 6, 9 or 12 dBm, respectively.
• Better unitization of uplink capacity, by enabling several SUs to share the bandwidth at the same time.
The available options for the Min Number of Sub-Channels parameter are 1, 2, 4, 8, and 16 (full bandwidth) sub-channels. A value of 16 means that sub-channelization is disabled.
Changes in Minimum Number of Sub-Channels are applied only after reset.
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