I would like some advice on how to set up the RU.
For the RF test, the technical staff is conducting the test by referring to Chapter 12 of the manual “UM11749” for RU setup. However, when we edited the configuration file “TF_Config_20MHz.txt” and loaded it based on the example in Chapter 12.6, the output waveform resembled an unmodulated signal, and we were unable to confirm the expected waveform.
Since a waveform is being output, we believe the file was loaded correctly.
The configuration file is described as follows.
===================================================================
FRAME_CTRL_TYPE=1 \\IEEE_TYPE_CONTROL
FRAME_CTRL_SUBTYPE=2 \\TRIGGER
\\configure Duration field
\\ Max Duration time
FRAME_DURATION=5484 \\0x156C
\\configure commoninfo field of trigger frame
\\ HE_trigger_frame.TrigCommonField.TriggerType = BASIC_TRIGGER;
\\ HE_trigger_frame.TrigCommonField.UlLen = 1000; \\ Max
\\ HE_trigger_frame.TrigCommonField.MoreTF = FALSE;
\\ HE_trigger_frame.TrigCommonField.CSRequired = FALSE;
\\ HE_trigger_frame.TrigCommonField.UlBw = TB_BW_20MHZ;
\\ HE_trigger_frame.TrigCommonField.LTFType = LTF_1_GI_1_6uS;
\\ HE_trigger_frame.TrigCommonField.LTFMode = MU_MIMO_SINGLE_STREAM;
\\ HE_trigger_frame.TrigCommonField.LTFSymbol = 0;
\\ HE_trigger_frame.TrigCommonField.UlSTBC = FALSE;
\\ HE_trigger_frame.TrigCommonField.LdpcESS = TRUE;
\\ HE_trigger_frame.TrigCommonField.ApTxPwr = 0
\\ HE_trigger_frame.TrigCommonField.PreFecPadFct = 1;
\\ HE_trigger_frame.TrigCommonField.PeDisambig = 0;
\\ HE_trigger_frame.TrigCommonField.SpatialReuse = 65535;
\\ HE_trigger_frame.TrigCommonField.Doppler = FALSE;
\\ HE_trigger_frame.TrigCommonField.HeSig2 = 0x1FF; \\ reserved
TrigCommonField=0;1000;0;0;0;1;0;0;0;1;0;1;0;65535;0;511
\\configure userinfo field of trigger frame
\\ HE_trigger_frame.TrigUserInfoField.AID12 = (5 & 0xFFF);
\\ HE_trigger_frame.TrigUserInfoField.RUAllocReg = 0;
\\ HE_trigger_frame.TrigUserInfoField.RUAlloc = 61; \\ 53 (106 tones)
\\ HE_trigger_frame.TrigUserInfoField.UlCodingType = CODING_TYPE_LDPC;
\\ HE_trigger_frame.TrigUserInfoField.UlMCS = 0;
\\ HE_trigger_frame.TrigUserInfoField.UlDCM = FALSE;
\\ HE_trigger_frame.TrigUserInfoField.SSAlloc = 0;
\\ HE_trigger_frame.TrigUserInfoField.UlTargetRSSI = 80;
TrigUserInfoField=5;0;61;1;0;0;0;80
\\configure trigger dependent user info field
\\ HE_trigger_frame.BasicTrigUserInfo.MPDU_MU_SF = MPDU_SPACING_MULT_1;
\\ HE_trigger_frame.BasicTrigUserInfo.TID_AL = 0;
\\ HE_trigger_frame.BasicTrigUserInfo.AC_PL = FALSE;
\\ HE_trigger_frame.BasicTrigUserInfo.Pref_AC = TB_AC_VO;
BasicTrigUserInfo=0;0;0;0
===================================================================
If there are any errors in this description, please let me know.
Also, if there are any other methods (ones that do not use a file), please let me know.
Hello @SA2
Could you share test logs and captured spectrum?
Best Regards
Shaun
Hello, Shaun.
Thank you for your reply.
I’m sharing a screenshot of the spectrum.
Hello @SA2
Could you share cmd you issued on both golden unit and DUT? Including labtool return value
Best Regards
Shaun
Hello, Shaun.
There is something we would like to confirm before providing the command.
We have reviewed Chapter 12, but all RF tests must be performed using conducted measurements.
(The test is performed with the DUT sample for conducted measurements connected to the spectrum analyzer via an SMA cable.)
Therefore, if we are performing conducted measurements using only one set of DUTs, should we refer to Chapter 12.2 ?
Hello @SA2
It is recommend to use standard test methods to measure. So that we could easy compare with our test report and find out if there are any issue.
Best Regards
Shaun