The software's MAC PDU frame setup mode enables you to create WiMAX standard-compliant frame structures for testing receiver designs in all stages of development. In this mode, the software automatically generates the preamble, FCH, and broadcast messages (DL-MAP, UL-MAP, DCD, UCD). Each data burst is fully coded with Reed-Solomon convolutional coding, randomization, and interleaving. You also have the flexibility to configure individual burst parameters, such as modulation type and rate, payload data, and the option to include header and CRC information in each MAC PDU for fully testing receiver designs. Frames can include both downlink and uplink bursts.
The software's Physical (PHY) frame setup mode lets you construct spectrally accurate waveforms for testing a variety of WiMAX components, such as amplifiers. In this mode, you can choose which waveform components you want in the frame, including the preamble, FCH, and data bursts. You also have access to the physical layer parameters: modulation type, payload data, fully coded (RS-CC, randomization, and interleaving) or raw data, coding rate, symbol length, and amplitude. Frames can include both downlink and uplink bursts.
Figure 1. This screen capture shows a signal generated with the Signal Studio of 802.16-2004 software displayed on the Agilent 89600 Series vector signal analysis software (v.5.3 or higher) with Option B7S, 802.16 (WiMAX) OFDM modulation analysis.
If your signal generator is equipped with the optional calibrated AWGN capability (Option 403 for the E4438C, E8267D, N5162A, or N5182A), you can add real-time AWGN to the WiMAX signal without using a stand-alone calibrated noise generator. You can conveniently configure the noise parameters through the software interface. The signal generator also enables you to add other impairments, such as I/Q skew, I/Q gain, I/Q offset, AM, FM, and ΦM. Many of these impairments can be configured through the software interface.
Add channel impairments to the WiMAX signal with the Agilent N5115B Baseband Studio for fading solution (ESG/PSG only)
Access digital IQ and digital IF test signals with the Agilent N5102A Baseband Studio digital signal interface module (ESG/PSG only)