laforge has submitted this change. ( https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/28949 )

Change subject: cbc: Introduce test TC_cell_failure_restart_active_{cbc,mme} ......................................................................

cbc: Introduce test TC_cell_failure_restart_active_{cbc,mme}

These tests are currently failing since osmo-cbc doesn't support reloading cells yet.

Related: OS#5641 Change-Id: I7b1c5275eff56888268601b481e8f8c1dd1bb1b0 --- M cbc/CBC_Tests.ttcn 1 file changed, 122 insertions(+), 0 deletions(-)

Approvals: Jenkins Builder: Verified laforge: Looks good to me, approved fixeria: Looks good to me, but someone else must approve

diff --git a/cbc/CBC_Tests.ttcn b/cbc/CBC_Tests.ttcn index aff5359..2f1ad7f 100644 --- a/cbc/CBC_Tests.ttcn +++ b/cbc/CBC_Tests.ttcn @@ -787,6 +787,125 @@ f_shutdown_helper(); }

+/* Test cell actively broadcasting a message in BSC going unavailable for + broadcasting and going available again. The CBC should reload the announced + cell with the active messages. See 3GPP TS 48.049 7.8 */ +private function f_bsc_TC_cell_failure_restart_active_bsc() runs on BSC_ConnHdlr { + var template (value) CBSP_FailureListItems fail_list := { + CBSP_FailureListItem_CGI(g_pars.cell_list_success.cIl_CGI[0], CBSP_CAUSE_CB_NOT_OPERATIONAL) + }; + var template (value) BSSMAP_FIELD_CellIdentificationList cell_list := ts_BSSMAP_CIL_CGI({ + g_pars.cell_list_success.cIl_CGI[0] + }); + + /* Guide cell into active broadcast msg state: */ + f_cbsp_handle_write(g_pars.exp_cbs_msg, 0, g_pars.cell_list_success); + + /* BSC reports the cell is down */ + f_cbsp_send(ts_CBSP_FAILURE(fail_list, CBSP_BC_MSGT_CBS)); + f_cbsp_send(ts_CBSP_FAILURE(fail_list, CBSP_BC_MSGT_EMERG)); + f_sleep(1.0); + + /* BSC reports the cell is up again */ + f_cbsp_send(ts_CBSP_RESTART(cell_list, CBSP_BC_MSGT_CBS, CBSP_RI_DATA_LOST)); + f_cbsp_send(ts_CBSP_RESTART(cell_list, CBSP_BC_MSGT_EMERG, CBSP_RI_DATA_LOST)); + +/* TODO: OS#5641 + * The BSC informs the CBC by sending the RESTART message (see figure 7.8.2.1) + * containing the Cell List IE identifying the cell(s) being in CBS message + * operational state or in emergency message operational state and the Recovery + * Indication IE, indicating whether the broadcast information data is lost or + * not in the BSC. + * The RESTART message is sent once per broadcast message type + * as indicated by the Broadcast Message Type IE. + */ + f_bsc_create_and_delete(); +} +testcase TC_cell_failure_restart_active_bsc() runs on test_CT { + f_init(num_bsc := 1); + var template (value) BSSMAP_FIELD_CellIdentificationList cell_list_success; + var template (value) CBS_Message msg := t_CBSmsg(43, 16752); + + cell_list_success := ts_BSSMAP_CIL_CGI({ + ts_BSSMAP_CI_CGI('901'H, '70'H, 23, 42) + }); + g_pars_BSC[0].start_fn := refers(f_bsc_TC_cell_failure_restart_active_bsc); + g_pars_BSC[0].exp_cbs_msg := valueof(msg); + g_pars_BSC[0].cell_list_success := valueof(cell_list_success); + f_start(); + + var EcbeCbcMessage ecbe := f_cbs2ecbe(valueof(msg), "TTCN-3"); + f_ecbe_tx_post_cbs(ecbe); + f_ecbe_rx_resp(201); + + f_shutdown_helper(); +} + +/* Test cell actively broadcasting a message in MME going unavailable for + broadcasting and going available again. The CBC should reload the announced + cell with the active messages. See 3GPP TS 29.168 4.3.3E.2 */ +private function f_mme_TC_cell_failure_restart_active_mme() runs on MME_ConnHdlr { + var template (value) Global_ENB_ID enb_id := ts_Global_ENB_ID_MACRO(f_enc_mcc_mnc('901'H, '70'H), 90); + var template (value) Failed_Cell_List fail_list := { + g_pars.bcast_cell_id_list[0].eCGI + } + var template (value) Restarted_Cell_List cell_list := { + g_pars.bcast_cell_id_list[0].eCGI + }; + /* Guide cell into active broadcast msg state: */ + f_sbcap_handle_write_replace_warn_req(g_pars.exp_cbs_msg, 0); + if (ispresent(g_pars.write_replace_warning_ind_cause) and + ispresent(g_pars.bcast_cell_id_list)) { + f_sbcap_tx_write_replace_warn_ind(0, g_pars.exp_cbs_msg, + g_pars.write_replace_warning_ind_cause, + g_pars.bcast_cell_id_list) + } + + /* MME reports the cell is down */ + f_SBC_AP_send(ts_SBCAP_PWS_FAILURE(fail_list, enb_id)); + + f_sleep(1.0); + + /* MME reports the cell is up again */ + f_SBC_AP_send(ts_SBCAP_PWS_RESTART(cell_list, enb_id)); + +/* TODO: OS#5641 + * The CBC shall reload the warning message data (with the same Message + * Identifier and Serial Number) to the (H)eNB by initiating Write Replace + * Warning procedure(s) as specified in clause 4.3.3.2 with the following + * additions: + * - the CBC should set the Warning Area List IE in the Write-Replace + * Warning Request message to the identities of the cell(s) received in the + * Restarted-Cell-List which are relevant to the warning message data being + * reloaded; + * - the CBC shall copy the Global eNB ID into the Write-Replace + * Warning Request message; and + * - the CBC may update the Number of Broadcast Requested, if necessary. + */ + f_mme_create_and_delete(); +} +testcase TC_cell_failure_restart_active_mme() runs on test_CT { + var template (value) CellId_Broadcast_List bcast_cell_id_li; + var template (value) CBS_Message msg := t_CBSmsg(48, 16752); + + f_init(num_bsc := 0, num_mme := 1); + + bcast_cell_id_li := { + ts_SBCAP_CellId_Broadcast_List_Item(ts_SBCAP_ECGI(f_enc_mcc_mnc('901'H, '70'H), 1234)) + }; + g_pars_MME[0].start_fn := refers(f_mme_TC_cell_failure_restart_active_mme); + g_pars_MME[0].exp_cbs_msg := valueof(msg); + g_pars_MME[0].write_replace_warning_ind_cause := SBC_AP_Cause_message_accepted; + g_pars_MME[0].bcast_cell_id_list := valueof(bcast_cell_id_li); + f_start(); + + var EcbeCbcMessage ecbe := f_cbs2ecbe(valueof(msg), "TTCN-3"); + f_ecbe_tx_post_cbs(ecbe); + f_ecbe_rx_resp(201); + + f_shutdown_helper(); +} + control { execute( TC_rx_keepalive() ); execute( TC_rx_keepalive_timeout() ); @@ -810,6 +929,9 @@

execute( TC_cell_failure_restart_idle_bsc() ); execute( TC_cell_failure_restart_idle_mme() ); + + execute( TC_cell_failure_restart_active_bsc() ); + execute( TC_cell_failure_restart_active_mme() ); }

}