User Manual Part 1

Quanta Computer Inc. IEEE802.16e WiMAX IAD (WV202)
User Manual
211, Wen Hwa 2nd Rd., Kuei Shan Hsiang, CONFIDENTIAL
Tao Yuan Shien, Taiwan, R.O.C. Classification: proprietary information
http://www.quantatw.com
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3.1.2 WiMAX Setting
The WiMAX settings for connecting to BS are described in this section. You can set the WiMAX
bandwidth and DL frequency from your ISP and to scan the BS to show how many BS can be found to
connect.
¾ System page
To set the OFDM and the gap time of TTG and RTG has two methods.
a. Default mode
In default mode, the default settings of the OFDM, TTG gap time and RTG gap time are as
below.
Field Description Default value
OFDM To input the FFT size in this field. The FFT size can be
512 or 1024 according to bandwidth is 5 MHz or 10 MHz.
1024
Gap Time TTG
Transmit/receive Transition Gap (TTG) is defined as the
time between end of the last sample of the last
OFDM-symbol of the UL and the start of the first sample
of the preamble of the following DL frame.
50 micro seconds
Gap Time RTG
Receive/transmit Transition Gap (RTG) is defined as the
time between end of the last sample of the last
OFDM-symbol of the DL and the start of the first sample
of the first OFDM-symbol of the UL frame
50 micro seconds