Attention is currently required from: laforge.

pespin has uploaded a new patch set (#7) to the change originally created by laforge. ( https://gerrit.osmocom.org/c/osmo-bts/+/31967 )

Change subject: contrib: Add BER testing tool ......................................................................

contrib: Add BER testing tool

This implements RTP based GSM BER testing for osmo-bts, implementing ideas described in https://osmocom.org/projects/osmobts/wiki/BER_Testing

In short: The command transmits a PRBS sequence encapsulated in RTP frames, which are sent to the BTS, which transmits that data in the (unimpaired) downlink. The mobile station receives the data and is instructed to loop it back in the (possibly impaired) uplink. The BTS receives that uplink, puts in in RTP frames which end up being received back by this very tool. By correlating the received RTP with the PRBS sequence, this tool can compute the BER (Bit Error Rate) of the (possibly impaired) uplink. Doing this with different RF channel model simulators in the uplink allows to establish BER at different levels and channel conditions.

Original code by Sylvain Munaut extended with some comments and Automake integration by Harald Welte.

Change-Id: I1cffa0ae959e29ec61775b13185fd1057ed7485a --- M .gitignore M configure.ac M contrib/Makefile.am A contrib/ber/Makefile.am A contrib/ber/README A contrib/ber/rtp_ber.c A contrib/ber/rtp_gen_map.c 7 files changed, 716 insertions(+), 1 deletion(-)

git pull ssh://gerrit.osmocom.org:29418/osmo-bts refs/changes/67/31967/7