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fixeria gerrit-no-reply at lists.osmocom.orgfixeria has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmocom-bb/+/14586 Change subject: trx_toolkit/fake_trx.py: introduce a TRXC command for C/I simulation ...................................................................... trx_toolkit/fake_trx.py: introduce a TRXC command for C/I simulation Change-Id: I7080effbbc1022d1884c6d6f0cb580eba8e514ff --- M src/target/trx_toolkit/fake_trx.py 1 file changed, 28 insertions(+), 2 deletions(-) git pull ssh://gerrit.osmocom.org:29418/osmocom-bb refs/changes/86/14586/1 diff --git a/src/target/trx_toolkit/fake_trx.py b/src/target/trx_toolkit/fake_trx.py index 12bcb80..641dd07 100755 --- a/src/target/trx_toolkit/fake_trx.py +++ b/src/target/trx_toolkit/fake_trx.py @@ -63,8 +63,15 @@ from (rssi_base - rssi_rand_threshold) to (rssi_base + rssi_rand_threshold). - Please note that randomization of both RSSI and ToA is optional, - and can be enabled from the control interface. + - C/I (Carrier-to-Interference ratio) - value in dB, computed from + the training sequence of each received burst, by comparing the + "ideal" training sequence with the actual one. A pair of both + base and threshold values defines a range of C/I randomization: + + from (ci_base - ci_rand_threshold) + to (ci_base + ci_rand_threshold). + + Please note that the randomization is optional and disabled by default. == Timing Advance handling @@ -250,6 +257,25 @@ self.rssi_base += int(request[1]) return 0 + # C/I simulation + # Absolute form: CMD FAKE_CI <BASE> <THRESH> + elif self.ctrl_if.verify_cmd(request, "FAKE_CI", 2): + log.debug("(%s) Recv FAKE_CI cmd" % self) + + # Parse and apply both base and threshold + self.ci_base = int(request[1]) + self.ci_rand_threshold = int(request[2]) + return 0 + + # C/I simulation + # Relative form: CMD FAKE_CI <+-BASE_DELTA> + elif self.ctrl_if.verify_cmd(request, "FAKE_CI", 1): + log.debug("(%s) Recv FAKE_CI cmd" % self) + + # Parse and apply delta + self.ci_base += int(request[1]) + return 0 + # Path loss simulation: burst dropping # Syntax: CMD FAKE_DROP <AMOUNT> # Dropping pattern: fn % 1 == 0 -- To view, visit https://gerrit.osmocom.org/c/osmocom-bb/+/14586 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmocom-bb Gerrit-Branch: master Gerrit-Change-Id: I7080effbbc1022d1884c6d6f0cb580eba8e514ff Gerrit-Change-Number: 14586 Gerrit-PatchSet: 1 Gerrit-Owner: fixeria <axilirator at gmail.com> Gerrit-MessageType: newchange -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/gerrit-log/attachments/20190624/540ce9ab/attachment.htm>