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HowToCalibrateeNBandUE.md

 There are several values that depend on your specific setup that you should calibrate.
----++ eNB
 
-The most important paramter to calibrate at the eNB is the maximum transmit power. This power is signalled to the UE so that it can do its power control. The parameter is PDSCH Energy Per Resource Element (EPRE), measured in dBm, and it is part of the configuration file as "pdsch_referenceSignalPower". It should be measured using a vector signal analyzer that has the LTE option for the utilized frequency and then put in the configuration file.
----++ UE
----+++ Power
+## eNB
 
-At the UE, also the maximum transmit power has to be calibrated. Here the maximum transmit power is measured (in dBm) over the whole (useable) bandwidth. If the same hardware is used at the UE and the eNB the power can be related by max_ue_power = PDSCH_EPRE + 10*log10(12*N_PRB).
+The most important paramter to calibrate at the eNB is the maximum transmit power.
+This power is signalled to the UE so that it can do its power control. The parameter
+is PDSCH Energy Per Resource Element (EPRE), measured in dBm, and it is part of the
+configuration file as `pdsch_referenceSignalPower`. It should be measured using a vector
+signal analyzer that has the LTE option for the utilized frequency and then put in the configuration file.
 
-The UE power can also be calibrated by using the following procedure. Start the eNB and run the UE using the option --calib-prach-tx. Once the UE is connected to the eNB, it will then transmit the PRACH all the time using its maximum power. Measure the TX of the UE with a spectrum analyzer at 0 span and measure the maximum power level.
+## UE
 
-The max UE power is passed to the UE using the command line argument --ue-max-power.
----+++ Timing advance
+### Power
 
-The timing advance is used to calibrate the difference in timing between the RX and TX paths. Today this paramter is hardcoded in lte-softmodem.c. It depends on the hardware and RF frontend used. For a USRP without any additional RF frontend, a paramter of 0 seems to be ok.
+At the UE, also the maximum transmit power has to be calibrated. Here the maximum transmit
+power is measured (in dBm) over the whole (useable) bandwidth. If the same hardware is used
+at the UE and the eNB the power can be related by `max_ue_power = PDSCH_EPRE + 10*log10(12*N_PRB)`.
 
-To calibrate this paramter, set up the eNB and run the UE with the option --calib-prach-tx. It will transmit always a preamle 19 on the PRACH. Check the logs of the eNB and adjust the timing advance until it receives this preamble with a close to 0 delay.
+The UE power can also be calibrated by using the following procedure. Start the eNB and run
+the UE using the option `--calib-prach-tx`. Once the UE is connected to the eNB, it will then
+transmit the PRACH all the time using its maximum power. Measure the TX of the UE with a spectrum
+analyzer at 0 span and measure the maximum power level.
 
--- User.FlorianKaltenberger - 12 Oct 2015
+The max UE power is passed to the UE using the command line argument `--ue-max-power`.
+
+### Timing advance
+
+The timing advance is used to calibrate the difference in timing between the RX and TX paths.
+Today this paramter is hardcoded in lte-softmodem.c. It depends on the hardware and RF frontend
+used. For a USRP without any additional RF frontend, a paramter of 0 seems to be ok.
+
+To calibrate this paramter, set up the eNB and run the UE with the option `--calib-prach-tx`.
+It will transmit always a preamle 19 on the PRACH. Check the logs of the eNB and adjust the timing
+advance until it receives this preamble with a close to 0 delay.
+
+-- @florian.kaltenberger - 12 Oct 2015