diff options
Diffstat (limited to 'src/target/trx_toolkit/fake_pm.py')
| -rw-r--r-- | src/target/trx_toolkit/fake_pm.py | 66 |
1 files changed, 45 insertions, 21 deletions
diff --git a/src/target/trx_toolkit/fake_pm.py b/src/target/trx_toolkit/fake_pm.py index 840b4e40..1992f8d3 100644 --- a/src/target/trx_toolkit/fake_pm.py +++ b/src/target/trx_toolkit/fake_pm.py @@ -2,9 +2,9 @@ # -*- coding: utf-8 -*- # TRX Toolkit -# Power measurement emulation for BB +# Power measurement emulation # -# (C) 2017 by Vadim Yanitskiy <axilirator@gmail.com> +# (C) 2017-2018 by Vadim Yanitskiy <axilirator@gmail.com> # # All Rights Reserved # @@ -25,29 +25,53 @@ from random import randint class FakePM: - # Freq. list for good power level - bts_list = [] + """ Power measurement emulation for fake transceivers. - def __init__(self, noise_min, noise_max, bts_min, bts_max): - # Save power level ranges + There is no such thing like RF signal level in fake Um-interface, + so we need to emulate this. The main idea is to have a list of + all running and idle transceivers. As soon as a measurement + request is received, FakePM will attempt to find a running + transceiver on a given frequency. + + The result of such "measurement" is a random RSSI value + in one of the following ranges: + + - trx_min ... trx_max - if at least one TRX was found, + - noise_min ... noise_max - no TRX instances were found. + + FIXME: it would be great to average the rate of bursts + and indicated power / attenuation values for all + matching transceivers, so "pure traffic" ARFCNs + would be handled properly. + + """ + + def __init__(self, noise_min, noise_max, trx_min, trx_max): + # Init list of transceivers + self.trx_list = [] + + # RSSI randomization ranges self.noise_min = noise_min self.noise_max = noise_max - self.bts_min = bts_min - self.bts_max = bts_max + self.trx_min = trx_min + self.trx_max = trx_max + + @property + def rssi_noise(self): + return randint(self.noise_min, self.noise_max) - def measure(self, bts): - if bts in self.bts_list: - return randint(self.bts_min, self.bts_max) - else: - return randint(self.noise_min, self.noise_max) + @property + def rssi_trx(self): + return randint(self.trx_min, self.trx_max) - def update_bts_list(self, new_list): - self.bts_list = new_list + def measure(self, freq): + # Iterate over all known transceivers + for trx in self.trx_list: + if not trx.running: + continue - def add_bts_list(self, add_list): - self.bts_list += add_list + # Match by given frequency + if trx.tx_freq == freq: + return self.rssi_trx - def del_bts_list(self, del_list): - for item in del_list: - if item in self.bts_list: - self.bts_list.remove(item) + return self.rssi_noise |