this patch adds the ability to configure NR cells with
Amarisoft eNB. It adds the new DRB-NR template and updates
the normal enb.cfg template to allow using it as LTE only
or with NR cells (5G NSA).
Change-Id: Ia27bbc6db5920ce14bacabe8043601aa2adaa5fe
with many parallel jobs running on one machine we should
relax the timeout a bit to avoid false positives.
Change-Id: Ib32a07559bd5a4b0165f6d3431c5ac57cc050f44
we previously mixed component specific and component agnostic APIs
(stdout vs. log file for example) for setting and retrieving KPI.
This patch propose to use a single abstract get_kpis() method for
all components that can be enriched with component-specific
stuff as desired.
In the case of srsLTE blocks, the main implementation will
remain in srslte_common() and is shared among srsENB/srsUE/srsEPC.
The KPI analyzer in srslte_common() extract and also manages
all three KPI sources (log, csv and stdout) independently.
In addition to the get_kpis() method that always returns a flat
dictionary, it also exposes get_kpi_tree() that return
a dict of KPI dicts that will be used for the Junit.xml generation.
Change-Id: I4bacc6b8a0cb92a581edfb947100b57022265265
This patch enables setting cipher and integrity algorithms
in Amarisoft eNB and srsENB via scenario files. If no
settings are defined following defaults are applied:
- Cipher algorithm: EEA0, EEA2, EEA1
- Integrity algorithm: EIA2, EIA1, EIA0
Example of setting cipher algorithms:
- 4g:srsue-rftype@uhd+srsenb-rftype@uhd+mod-enb-cipher@eea1+mod-enb-cipher@eea0+mod-enb-nprb@6
Change-Id: I595206b7d49016fb6d0aec175c828d9537c53886
implement as noop for Amarisoft eNB, srsENB will send q+Enter to stdin,
which is implemented in class srslte_common()
Change-Id: Ide606e1a6b523997215aa2fa39d4d56ae1f49181
this patch adds the stdout counter to count events happening
on the stdout (known from the UE already) to the common
process class so they can also be used from the eNB (and other objects)
In addition, we add a PRACH counter to be used for tests.
Change-Id: I434f072b8aa6f4dce9f90889c6b40832f6798ff8
make sure to insert cell specific TAC, PCI and root seq ind
into cell config and do not depend on cell index for a particular
enb. This causes issues in multi-eNB setups.
Change-Id: I6642128a449a0562dd23f7fa393ff48ae2503006
ENB was using its own address as a remote address when the broker is
used, which actually only holds true for the first ENB (since the broker
is currently run on the same host/address of the first ENB).
Change-Id: I5c83075d140632846c6d357152963754d16b4633
First step towards support everal ENBs and installing the remote script
at runtime:
* The gnuradio broker class is moved to its own file, to decouple it
from RFemu.
* The ENBs are registered earlier in the test so that the GrBroker knows
when to start (delay start + setup until all ENBs have been configured).
* Handle ENBs internally as a list.
Change-Id: I4f1095bbc7ed0a816fe47caef44f7becadd9d737
this patch adds the basic notion of FDD and TDD duplexing modes
to the eNB object. So far we've always assume FDD.
Since only Amarisoft eNB supports TDD, the required config
template changes, etc. are only applied there.
The patch also adds a scenario to enable the default TDD config.
Change-Id: I37216b5bfdf527d221913283b6c41d3c8fd6b500
srsENB currently creates 1 zmq stream (1 tx, 1 rx) for each cell (2 if
MIMO is enabled). Each cell transceives on a given EARFCN (and several
cells can transmit on same EARFCN).
However, for handover test purposes, we want to join all cells operating
on the same EARFCN to transceive on the same ZMQ conn, so that an srsUE
can interact with them at the same time (same as if the medium was shared).
Furthermore, we want to set different gains on each of those paths
before merging them in order to emulate RF conditions like handover.
In order to do so, a new element called the Broker is introduced, which
is placed in between ENBs and UEs ZMQ conenctions, multiplexing the
connections on the ENB side towards the UE side.
A separate process for the broker is run remotely (ENB run host) which
listens on a ctrl socket for commands. An internal Broker class is used
in osmo-gsm-tester to interact with the remote script, for instance to
configure the ports, start and stop the remote process, send commands to
it, etc.
On each ENB, when the rfemu "gnuradio_zmq" rfemu implementation is selected
in configuration, it will configure its zmq connections and the UE ones to
go over the Broker.
As a result, that means the UE zmq port configuration is expected to be
different than when no broker is in used, since there's the multiplexing
per EARFCN in between.
In this commit, only 1 ENB is supported, but multi-enb support is
planned in the future.
The handover test passes in the docker setup with this config:
"""
OSMO_GSM_TESTER_OPTS="-T -l dbg -s 4g:srsue-rftype@zmq+srsenb-rftype@zmq+" \
"mod-enb-nprb@6+mod-enb-ncells@2+mod-enb-cells-2ca+suite-4g@10,2+" \
"mod-enb-meas-enable -t =handover.py"
"""
and in resources.conf (or scenario), added:
"""
enb:
...
cell_list:
- dl_rfemu:
type: gnuradio_zmq
- dl_rfemu:
type: gnuradio_zmq
"""
Note that since the broker is used, there's not need for mod-srsue-ncarriers@2
since the broker is joining the 2 enb cells into 1 stream on the UE side.
Change-Id: I6282cda400558dcb356276786d91e6388524c5b1
In order to set up the channel emulator we need to calculate the total
number of RF channels that a eNB has from within a test.
Change-Id: If641993033eb5dcdc6e2d6afdc8426ed322241ca
Use tailored sample rate only use for 6, 50 and 75 PRB. For all other bandwidths,
we use the full LTE rate and downsample.
With 5.76e6 as base sample rate, for example, we had some issue during the tests like:
[zmq] Error: tx time is 0.178 ms in the past (7833600 < 7835648)
[zmq] Error: tx time is 0.011 ms in the past (7835520 < 7835648)
Using a higher sample rate seems to work better.
Change-Id: I53678587b2c5e0e5dccb1b55a328ad2f1a97fc4c
It turned out that the Amarisoft and SRS eNB scheduler produces
slightly different maximum data rates for both UL and DL.
Change-Id: I30fa7006906d101c53ba586fb06bced3945aa960
specifiying the rx/tx_freq for the eNB is optional. But when
it's done it needs to be correct. There seems to be an issue
when mapping the freq[0-3] between srsENB and Amarisoft eNB.
So it's safe to just drop the config here altogether.
Change-Id: I70f5776173c2df5894031f68df2f6c3a900b79f8
we need to make the rf_port a param in the cell list because for CA with
two cells on different EARFNCs, the RF port is different
for two cells without CA on the same EARFCN the RF port is the same
so we need to be able to configure it
Change-Id: I32e83cc34811588757104c5ce1cae7277402addd
This way we get rid of object related content in resource.py and we can
finally move it to core/ in next commit.
Change-Id: Ia5b861115ae3ae1b90149863c4265dcc730b8cd4
This way we benefit from:
* knowing which attributes are used/required by each object class and
subclass
* Having validation function definitions near the class going to use them
Change-Id: I8fd6773c51d19405a585977af4ed72cad2b21db1
this patch moves the rf_dev_args creation for both eNB types
into the eNB base class, since they are identical.
the patch also fixes the arguments for all CA and MIMO configurations
Change-Id: I8ca3ed83e65dc07927385267e5970bc4f5b120d5
Two implementations are provided:
* Amarisoft Ctrl interface (websocket)
* Mini-Circuits Programmable Attenuator (HW, HTTP API) [1]
in Amarisoft ENBs, if no rfemu is configured explicitly, the Ctrl
interface one is used by default, while still being possible to use the
HW one.
[1] https://www.minicircuits.com/pdfs/RC4DAT-6G-60.pdf
Change-Id: Ie98a3fb9bcd2b87b96ecbb5b79e0f53981892a32
this allows to optionally specify a the GTP bind_address for a enb object
in the resources.conf
this address is then used for binding the listening socket for gtp connections
which, in turn, allows to run the enb and epc on the same host.
when gtp_bind_addr is not specified, addr is used by default
this is especially useful if eNB and EPC run on the same host
and ZMQ is used for RF between eNB and UE. Two eNB addresses
are needed in this case, one bind address and one "remote-accessable"
address for the UEs ZMQ radio to connect to
Change-Id: I4fe38f31401428ed3e74e1d0b64960f0af122d37
Andre Puschmann
Pau Espin