Changes between Version 37 and Version 38 of Tutorials/Wireless/mmwave Paam Real TimePHY

Timestamp:

Sep 11, 2024, 7:59:02 PM (6 weeks ago)

Author:

zhenzhou77

Comment:

—

Tutorials/Wireless/mmwave Paam Real TimePHY

@@ -385 +385 @@
 }}}
 
-You are expected to see that both the gNodeB and UE start to run. Specifically on the gNodeB side, you are able to see the following example results during the running process:
-[53:014631][I] Main [frame 2725 + 0.2947 ms]: Completed LDPC decoding (3 UL symbols)
-[53:014649][I] Frame 2725 Summary: FFT (3 tasks): 0.00154595 ms (~0.000339647 + 0.000664836 + 0.000324997 ms), CSI (1 tasks): 0.00167028 ms (~0.000131657 + 0.000613947 + 0.000893259 ms), Beamweights (768 tasks): 0.0870535 ms (~0.0128177 + 0.00645252 + 0.065607 ms), Equal (2304 tasks): 0.0959841 ms (~0.000906946 + 0.00760658 + 0.0428155 ms), Demul (36 tasks): 0.00160436 ms (~3.55583e+12 + 0 + 0 ms), Decode (3 tasks): 0.0239624 ms (~1.83124e-05 + 0.0237294 + 0 ms), Total: 0.211821 ms
-
-
+You are expected to see that both the gNodeB and UE start to run. Specifically on the gNodeB side, you are able to see a very similar results during the running process as of simulation mode, but with a jitter between the host and the USRP which will cause the total elapsed processing to be delayed by a bit. 
+
+Once you finish the process, you are expected to see the following results similar as simulation mode
+{{{
+[53:029073][I] UE 0: Uplink bit errors (BER) 32491/2639736 (0.012308), block errors (BLER) 67/2727 (0.024569)
+}}}
+but notice, the BER and BLER will no longer be perfectly 0%, as the initial synchronization between gNodeB and UE will take some time and cause incorrect decoding result for the first few frames. 
+
+The default USRP and PAAM gain settings will result in a SNR around 26dB which will produce very low BER and BLER. You can also change the gain settings in {{{Savannah/agora-mmwave/files/experiments/ul-usrp.json}}} to vary the SNR values. 
+
+