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Merge remote-tracking branch 'origin/telnet-o1' into integration_2024_w50 (!3125)

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Add support for O1 in O-DU via telnet

This change set adds a simple telnet interface to nr-softmodem. Together
with oai/o1-adapter>, this implements a part of the O1 interface, for
the DU only. Currently supported uses cases:

- some stats are send to an SMO (such as bandwidth, PLMN, frequency, ...)
- re-configuration of bandwidth, frequency
- stop/start of the softmodem, while keeping the CU and L2 running
- the o1-adapter implements two alarms, load overload and base station
  offline, using this interface.

It is possible to use the telnet interface by itself (i.e., "o1" without
the o1-adapter). To do this, compile with telnet support (./build_oai
--build-lib telnetsrv) and start the nr-softmodem with O1 module
(./nr-softmodem --telnetsrv --telnetsrv.shrmod o1). You can then do the
following:

- see some statistics as exposed to o1-adapter, in JSON: echo o1 stats | nc 127.0.0.1 9090 && echo
- stop the L1: echo o1 stop_modem | nc 127.0.0.1 9090 && echo
- reconfigure bandwidth: e.g., echo o1 bwconfig 20 | nc 127.0.0.1 9090 && echo (also supported: 40, 60, 100)
- start the L1: echo o1 start_modem | nc 127.0.0.1 9090 && echo

Note that the reconfiguration works with split-8 radios. Notably, it
does not work yet out-of-the-box with 7.2 radios, because they have to
be manually reconfigured on bandwith/frequency switch. The planned
M-plane should allow such use case, though.

To help with the above, this branch also includes fixes (for more
information, refer to the corresponding commits):

- fixes for stopping the L1, notably stop threads in right order, stop
  thread pool of RU
- collect some general MAC metrics, fix some bugs in MAC
- fix problems in F1AP gNB-DU configuration update message, update test
- fix some problems in RRC
This commit is contained in:
Robert Schmidt
2024-12-16 19:42:28 +01:00
parent a2613d5604 59e6a33d2b
commit 0d4c7364b4
35 changed files with 944 additions and 168 deletions
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radio/rfsimulator/simulator.c
+10 -1
View File
@@ -1085,7 +1085,16 @@ static void rfsimulator_end(openair0_device *device) {
}
close(s->epollfd);
hashtable_destroy(&s->fd_to_buf_map);
free(s);
}
static void stopServer(openair0_device *device)
{
rfsimulator_state_t *t = (rfsimulator_state_t *) device->priv;
DevAssert(t != NULL);
close(t->listen_sock);
rfsimulator_end(device);
}
static int rfsimulator_stop(openair0_device *device) {
return 0;
}
@@ -1136,7 +1145,7 @@ int device_init(openair0_device *device, openair0_config_t *openair0_cfg) {
device->trx_start_func = rfsimulator->role == SIMU_ROLE_SERVER ? startServer : startClient;
device->trx_get_stats_func = rfsimulator_get_stats;
device->trx_reset_stats_func = rfsimulator_reset_stats;
device->trx_end_func = rfsimulator_end;
device->trx_end_func = rfsimulator->role == SIMU_ROLE_SERVER ? stopServer : rfsimulator_end;
device->trx_stop_func = rfsimulator_stop;
device->trx_set_freq_func = rfsimulator_set_freq;
device->trx_set_gains_func = rfsimulator_set_gains;