| # osmo_gsm_tester: base classes to share code among eNodeB subclasses. |
| # |
| # Copyright (C) 2020 by sysmocom - s.f.m.c. GmbH |
| # |
| # Author: Pau Espin Pedrol <pespin@sysmocom.de> |
| # |
| # This program is free software: you can redistribute it and/or modify |
| # it under the terms of the GNU General Public License as |
| # published by the Free Software Foundation, either version 3 of the |
| # License, or (at your option) any later version. |
| # |
| # This program is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| |
| from abc import ABCMeta, abstractmethod |
| from . import log, config |
| |
| |
| class eNodeB(log.Origin, metaclass=ABCMeta): |
| |
| ############## |
| # PROTECTED |
| ############## |
| def __init__(self, suite_run, conf, name): |
| super().__init__(log.C_RUN, '%s' % name) |
| self._conf = conf |
| self._addr = conf.get('addr', None) |
| if self._addr is None: |
| raise log.Error('addr not set') |
| self.set_name('%s_%s' % (name, self._addr)) |
| self._txmode = 0 |
| self._num_prb = 0 |
| self._epc = None |
| |
| def configure(self, config_specifics_li): |
| values = dict(enb=config.get_defaults('enb')) |
| for config_specifics in config_specifics_li: |
| config.overlay(values, dict(enb=config.get_defaults(config_specifics))) |
| config.overlay(values, dict(enb=self.suite_run.config().get('enb', {}))) |
| for config_specifics in config_specifics_li: |
| config.overlay(values, dict(enb=self.suite_run.config().get(config_specifics, {}))) |
| config.overlay(values, dict(enb=self._conf)) |
| self._num_prb = int(values['enb'].get('num_prb', None)) |
| assert self._num_prb |
| self._txmode = int(values['enb'].get('transmission_mode', None)) |
| assert self._txmode |
| config.overlay(values, dict(enb={ 'num_ports': self.num_ports() })) |
| assert self._epc is not None |
| config.overlay(values, dict(enb={ 'mme_addr': self._epc.addr() })) |
| return values |
| |
| def num_ports(self): |
| if self._txmode == 1: |
| return 1 |
| return 2 |
| |
| ######################## |
| # PUBLIC - INTERNAL API |
| ######################## |
| def cleanup(self): |
| 'Nothing to do by default. Subclass can override if required.' |
| pass |
| |
| def num_prb(self): |
| return self._num_prb |
| |
| ################### |
| # PUBLIC (test API included) |
| ################### |
| @abstractmethod |
| def start(self, epc): |
| 'Starts ENB, it will connect to "epc"' |
| pass |
| |
| @abstractmethod |
| def ue_add(self, ue): |
| pass |
| |
| @abstractmethod |
| def running(self): |
| pass |
| |
| @abstractmethod |
| def ue_max_rate(self, downlink=True): |
| pass |
| |
| def addr(self): |
| return self._addr |
| |
| def ue_max_rate(self, downlink=True): |
| # The max rate for a single UE per PRB configuration in TM1 |
| max_phy_rate_tm1_dl = { 6 : 3.5e6, |
| 15 : 11e6, |
| 25 : 18e6, |
| 50 : 36e6, |
| 75 : 55e6, |
| 100 : 75e6 } |
| max_phy_rate_tm1_ul = { 6 : 0.9e6, |
| 15 : 4.7e6, |
| 25 : 10e6, |
| 50 : 23e6, |
| 75 : 34e6, |
| 100 : 51e6 } |
| if downlink: |
| max_rate = max_phy_rate_tm1_dl[self.num_prb()] |
| else: |
| max_rate = max_phy_rate_tm1_ul[self.num_prb()] |
| #TODO: calculate for non-standard prb numbers. |
| if self._txmode > 2: |
| max_rate *= 2 |
| # We use 3 control symbols for 6, 15 and 25 PRBs which results in lower max rate |
| if self.num_prb() < 50: |
| max_rate *= 0.9 |
| return max_rate |
| |
| # vim: expandtab tabstop=4 shiftwidth=4 |