Features depend on installed hardware and firmware options in the E4438C ESG, E8267D PSG, N5162A MXG ATE, or N5182A MXG vector signal generators.
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Features depend on installed hardware and firmware options in the E4438C ESG, E8267D PSG, N5162A MXG ATE, or N5182A MXG vector signal generators. |
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Added connectivity for the N5162A MXG ATE vector signal generator to option N7613A-103. (N7613A-103 was formerly special option N7613A-SW1.)
Enhancements:
Added special option N7613A-SW1 for N5182A MXG connectivity. (The software displays N7613A-103 as the feature name under Application Licenses for this connectivity option.) This option provides a fixed perpetual license for signal generation and playback capability of the software for use with the N5182A MXG signal generator. It entitles the user to the equivalent capability when the official product is released.
Note: Some signal generator settings in the software do not apply or may have different ranges for the MXG. Refer to Signal Generator Settings for details.
Bug Fixes:
Corrected configuration information for the E8267D in the technical overview and help.
Enhancements:
Added support for uplink subchannelization. User may select desired subchannel index from the UL User properties window. Subchannel index parameter added to UL-MAP.
Added Starting Frame Number (frame offset) parameter in the Project window.
Added Baseband Quadrature Angle and Gain impairment parameters in the Project window. These impairments are applied to the waveform data to provide impaired baseband I/Q and RF outputs.
Added Waveform CCDF and Burst CCDF selections in the CCDF graph view window. Waveform CCDF provides the CCDF calculated from the full waveform as in previous versions of the N7613A software. Burst CCDF calculates the CCDF only over the portion of the waveform when the RF burst is on.
Bug Fixes:
Mod Atten range is now consistent with the ESG front panel.
Setup files set to 'read only' can now be recalled.
Enhancements:
Added a Waveform Generation Log for viewing the hexadecimal values of the input bits automatically generated for FCH, broadcast message, and DL/UL bursts.
Bug Fixes:
When generating MAC PDUs, the payload data pointer was not being reset to the start of the data sequence when generating a new waveform. This resulted in the data being different each time the waveform was generated, so waveform characteristics, such as CCDF, might be different each time. This problem has been fixed to reset the payload data pointer when the first frame is generated.
The DCD message now includes the frame duration and frame number information elements (IEs). Since the software only generates a maximum of 16 frames in one waveform, only the 4 LSB of the frame number field are used. The remaining 12 bits in the field are set to zeros.
Bug Fixes:
WiMAX signal can now be demodulated by VSA when mirror spectrum is set to inverted.
In the DCD and UCD broadcast messages, the burst profile length field value has been changed to 4.
MAC headers generated from the MAC PDU editor now have the reserved bits correctly set to 0 instead of 1.
Bug Fixes:
The user can set the midamble repetition interval in either one of two locations in the MAC uplink setup. One of these locations had an incorrect set of interval selections: Off, 8, 16, and 32 (see 2.0.1.0 – April 19, 2005). These selections are now corrected to be Off, 4, 8, and 16.
Enhancements:
Added a new parameter labeled “Optimize For” in the Project Property pane of the parameter view. This allows the user to generate a waveform that is either optimized for EVM or ACPR .
For the MAC uplink setup, changed the selections available for the midamble repetition interval from Off, 8, 16, and 32 to Off, 4, 8, and 16. These selections comply with the IEEE 802.16-2004 change proposal described in P802.16-2004/Cor1/D2.
Bug Fixes:
Uplink Start Timing values are now calculated correctly. For FDD mode, the value is zero. For TDD modes, the values are calculated according to the user-selected Downlink Ratio.
CCDF curves are now calculated correctly.
2.0.0.0 – February 24, 2005 (Initial Release)
Software version 2.0.0.0 is the initial release of N7613A Signal Studio for 802.16-2004 (WiMAX) and is used to generate WiMAX signals for receiver testing and component testing.
Features include the following:
Flexible signal parameters, including bandwidth, cyclic prefix ratio (G), sampling factor (n), frame length, and TDD downlink/uplink ratio
Up to 16 frames of the same configuration with incrementing frame numbers and continuous data in MAC PDUs
Downlink and uplink frames with preamble, FCH, and data bursts
Different coding and modulation types/rates for each data burst (BPSK, QPSK, 16QAM, or 64QAM)
Various payload data types: fixed patterns, PN9 or PN15 sequences, or user data files
Raw or fully coded data (with randomization, RS convolutional coding, and interleaving)
Frame configuration modes designed for component test and receiver test
Real-time AWGN capability (requires E4438C-403 or E8267D-403)
Intuitive display of frame structure as you build the waveform
Plots of waveform characteristics, such as CCDF curves, I/Q signals, and baseband spectrum
Signal generator settings accessible through software, including I/Q adjustments, triggering, and markers
LAN and GPIB connectivity
Ability to select the order in which bits are fed into the CRC generator when building frames in MAC PDU mode. This feature provides flexibility for MAC PDU CRC generation, supporting different interpretations of the WiMAX standard. Choosing LSB first (default) produces a CRC that follows the Ethernet Frame Check Sum (FCS) standard defined in IEEE 802.3. Choosing MSB first follows the CCITT CRC32 standard.