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Add telnet trigger for N2 handover

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* the command gets in input the neighbour PCI and the UE ID
* the telnet ci function to retrieve the UE context was extended in the process
* add function to trigger handover on the same gNB for testing purposes

Co-authored-by: batuhan duyuler <batuhan.duyuler@firecell.io>
This commit is contained in:
Guido Casati
2025-09-18 11:34:31 +02:00
co-authored by batuhan duyuler
parent cb68d817f0
commit 5227becf89
2 changed files with 98 additions and 0 deletions
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common/utils/telnetsrv/telnetsrv_ci.c
+49
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@@ -38,6 +38,7 @@
#include "openair2/LAYER2/nr_rlc/nr_rlc_ue_manager.h"
#include "openair2/LAYER2/nr_rlc/nr_rlc_entity_am.h"
#include "openair2/LAYER2/NR_MAC_gNB/mac_proto.h"
#include "openair2/RRC/NR/rrc_gNB_mobility.h"
#define TELNETSERVERCODE
#include "telnetsrv.h"
@@ -196,6 +197,53 @@ int rrc_gNB_trigger_f1_ho(char *buf, int debug, telnet_printfunc_t prnt)
return 0;
}
extern void nr_HO_N2_trigger_telnet(gNB_RRC_INST *rrc, uint32_t neighbour_pci, uint32_t rrc_ue_id);
/** @brief Trigger N2 handover for UE
* @param buf: Neighbour PCI, SCell PCI, RRC UE ID
* @param debug: Debug flag
* @param prnt: Print function
* @return 0 on success, -1 on failure */
int rrc_gNB_trigger_n2_ho(char *buf, int debug, telnet_printfunc_t prnt)
{
if (!RC.nrrrc)
ERROR_MSG_RET("no RRC present, cannot list counts\n");
if (!buf) {
ERROR_MSG_RET("Please provide neighbour cell id and ue id\n");
} else {
// Parse neighbour cell PCI
char *token = strtok(buf, ",");
if (!token) {
ERROR_MSG_RET("Invalid input. Expected format: Neighbour PCI, ueId\n");
}
uint32_t neighbour_pci = strtol(token, NULL, 10);
// Parse ueId
token = strtok(NULL, ",");
if (!token) {
ERROR_MSG_RET("Missing UE ID\n");
}
uint32_t ueId = strtol(token, NULL, 10);
// Retrieve UE context
rrc_gNB_ue_context_t *ue_p = rrc_gNB_get_ue_context(RC.nrrrc[0], ueId);
if (!ue_p) {
ERROR_MSG_RET("UE with id %u not found\n", ueId);
}
gNB_RRC_UE_t *UE = &ue_p->ue_context;
// Trigger N2 handover
nr_HO_N2_trigger_telnet(RC.nrrrc[0], neighbour_pci, UE->rrc_ue_id);
// Print success message
prnt("RRC N2 handover triggered for UE %u with neighbour cell id %u\n",
ueId,
neighbour_pci);
}
return 0;
}
int force_ul_failure(char *buf, int debug, telnet_printfunc_t prnt)
{
if (!RC.nrmac)
@@ -245,6 +293,7 @@ static telnetshell_cmddef_t cicmds[] = {
{"trigger_f1_ho", "[rrc_ue_id(int,opt)]", rrc_gNB_trigger_f1_ho},
{"fetch_du_by_ue_id", "[rrc_ue_id(int,opt)]", fetch_du_by_ue_id},
{"get_current_bwp", "[rnti(hex,opt)]", get_current_bwp},
{"trigger_n2_ho", "[neighbour_pci(uint32_t),ueId(uint32_t)]", rrc_gNB_trigger_n2_ho},
{"", "", NULL},
};