diff --git a/openair2/COMMON/f1ap_messages_types.h b/openair2/COMMON/f1ap_messages_types.h
index 89826e7ff5..e44e1dccb4 100644
--- a/openair2/COMMON/f1ap_messages_types.h
+++ b/openair2/COMMON/f1ap_messages_types.h
@@ -381,6 +381,7 @@ typedef struct f1ap_cu_to_du_rrc_info_s {
   byte_array_t *cg_configinfo;
   byte_array_t *ue_cap;
   byte_array_t *meas_config;
+  byte_array_t *meas_timing_config;
   byte_array_t *ho_prep_info;
 } f1ap_cu_to_du_rrc_info_t;
 
diff --git a/openair2/F1AP/lib/f1ap_ue_context.c b/openair2/F1AP/lib/f1ap_ue_context.c
index a1b5531c2b..9d8cbfe15f 100644
--- a/openair2/F1AP/lib/f1ap_ue_context.c
+++ b/openair2/F1AP/lib/f1ap_ue_context.c
@@ -57,8 +57,9 @@ static F1AP_CUtoDURRCInformation_t encode_cu_to_du_rrc_info(const f1ap_cu_to_du_
   }
 
   /* optional: HandoverPreparationInformation */
+  F1AP_ProtocolExtensionContainer_10696P60_t *p = NULL;
   if (cu2du->ho_prep_info) {
-    F1AP_ProtocolExtensionContainer_10696P60_t *p = calloc_or_fail(1, sizeof(*p));
+    p = calloc_or_fail(1, sizeof(*p));
     enc.iE_Extensions = (struct F1AP_ProtocolExtensionContainer *)p;
     asn1cSequenceAdd(p->list, F1AP_CUtoDURRCInformation_ExtIEs_t, ie_ext);
     ie_ext->id = F1AP_ProtocolIE_ID_id_HandoverPreparationInformation;
@@ -68,6 +69,20 @@ static F1AP_CUtoDURRCInformation_t encode_cu_to_du_rrc_info(const f1ap_cu_to_du_
     F1AP_HandoverPreparationInformation_t *hpi = &ie_ext->extensionValue.choice.HandoverPreparationInformation;
     OCTET_STRING_fromBuf(hpi, (const char *)ba->buf, ba->len);
   }
+
+  /* optional: iE_Extensions */
+  if (cu2du->meas_timing_config) {
+    if (!p)
+      p = calloc_or_fail(1, sizeof(*p));
+    enc.iE_Extensions = (struct F1AP_ProtocolExtensionContainer *)p;
+    asn1cSequenceAdd(p->list, F1AP_CUtoDURRCInformation_ExtIEs_t, ie_ext);
+    ie_ext->id = F1AP_ProtocolIE_ID_id_MeasurementTimingConfiguration;
+    ie_ext->criticality = F1AP_Criticality_ignore;
+    ie_ext->extensionValue.present = F1AP_CUtoDURRCInformation_ExtIEs__extensionValue_PR_MeasurementTimingConfiguration;
+    const byte_array_t *ba = cu2du->meas_timing_config;
+    F1AP_MeasurementTimingConfiguration_t *mtc = &ie_ext->extensionValue.choice.MeasurementTimingConfiguration;
+    OCTET_STRING_fromBuf(mtc, (const char *)ba->buf, ba->len);
+  }
   return enc;
 }
 
@@ -98,6 +113,11 @@ static bool decode_cu_to_du_rrc_info(f1ap_cu_to_du_rrc_info_t *dec, const F1AP_C
           const F1AP_HandoverPreparationInformation_t *hopi = &cu2du_info_ext->extensionValue.choice.HandoverPreparationInformation;
           *dec->ho_prep_info = create_byte_array(hopi->size, (uint8_t*) hopi->buf);
           break;
+        case F1AP_ProtocolIE_ID_id_MeasurementTimingConfiguration:
+          dec->meas_timing_config = calloc_or_fail(1, sizeof(*dec->meas_timing_config));
+          const F1AP_MeasurementTimingConfiguration_t *mtc = &cu2du_info_ext->extensionValue.choice.MeasurementTimingConfiguration;
+          *dec->meas_timing_config = create_byte_array(mtc->size, (uint8_t *)mtc->buf);
+          break;
         default:
           PRINT_ERROR("received unsupported F1AP CUtoDURRCInfo extension container %ld\n", cu2du_info_ext->id);
       }
@@ -112,6 +132,7 @@ static f1ap_cu_to_du_rrc_info_t cp_cu_to_du_rrc_info(const f1ap_cu_to_du_rrc_inf
   CP_OPT_BYTE_ARRAY(dst.cg_configinfo, src->cg_configinfo);
   CP_OPT_BYTE_ARRAY(dst.ue_cap, src->ue_cap);
   CP_OPT_BYTE_ARRAY(dst.meas_config, src->meas_config);
+  CP_OPT_BYTE_ARRAY(dst.meas_timing_config, src->meas_timing_config);
   CP_OPT_BYTE_ARRAY(dst.ho_prep_info, src->ho_prep_info);
   return dst;
 }
@@ -126,6 +147,7 @@ static bool eq_cu_to_du_rrc_info(const f1ap_cu_to_du_rrc_info_t *a, const f1ap_c
   _F1_EQ_CHECK_OPTIONAL_IE(a, b, cg_configinfo, eq_ba);
   _F1_EQ_CHECK_OPTIONAL_IE(a, b, ue_cap, eq_ba);
   _F1_EQ_CHECK_OPTIONAL_IE(a, b, meas_config, eq_ba);
+  _F1_EQ_CHECK_OPTIONAL_IE(a, b, meas_timing_config, eq_ba);
   _F1_EQ_CHECK_OPTIONAL_IE(a, b, ho_prep_info, eq_ba);
   return true;
 }
@@ -135,6 +157,7 @@ static void free_cu_to_du_rrc_info(f1ap_cu_to_du_rrc_info_t *cu2du)
   FREE_OPT_BYTE_ARRAY(cu2du->cg_configinfo);
   FREE_OPT_BYTE_ARRAY(cu2du->ue_cap);
   FREE_OPT_BYTE_ARRAY(cu2du->meas_config);
+  FREE_OPT_BYTE_ARRAY(cu2du->meas_timing_config);
   FREE_OPT_BYTE_ARRAY(cu2du->ho_prep_info);
 }
 
diff --git a/openair2/F1AP/tests/f1ap_lib_test.c b/openair2/F1AP/tests/f1ap_lib_test.c
index ebf90fc648..72ea809245 100644
--- a/openair2/F1AP/tests/f1ap_lib_test.c
+++ b/openair2/F1AP/tests/f1ap_lib_test.c
@@ -755,6 +755,7 @@ static void test_f1ap_ue_context_setup_request()
   orig.cu_to_du_rrc_info.cg_configinfo = get_malloced_test_ba("CG-CONFIGINFO");
   orig.cu_to_du_rrc_info.ue_cap = get_malloced_test_ba("UE CAP");
   orig.cu_to_du_rrc_info.meas_config = get_malloced_test_ba("UE MEASUREMENT CONFIGURATION");
+  orig.cu_to_du_rrc_info.meas_timing_config = get_malloced_test_ba("MEASUREMENT TIMING CONFIGURATION");
   orig.cu_to_du_rrc_info.ho_prep_info = get_malloced_test_ba("PREPARATION DATA FOR HANDOVER");
   orig.srbs_len = 2;
   orig.srbs = calloc_or_fail(orig.srbs_len, sizeof(*orig.srbs));
@@ -996,6 +997,7 @@ static void test_f1ap_ue_context_modification_request()
     .cg_configinfo = get_malloced_test_ba("Modified"),
     .ue_cap = get_malloced_test_ba("UE forgot to send earlier"),
     .meas_config = get_malloced_test_ba("with updates from another cell"),
+    .meas_timing_config = get_malloced_test_ba("measurement timing configuration"),
     .ho_prep_info = get_malloced_test_ba("prepare to ho soon!"),
   };
   _F1_MALLOC(orig.cu_to_du_rrc_info, cu2du);
diff --git a/openair2/LAYER2/NR_MAC_gNB/mac_rrc_ul_direct.c b/openair2/LAYER2/NR_MAC_gNB/mac_rrc_ul_direct.c
index cf6c5b2563..deec619e3d 100644
--- a/openair2/LAYER2/NR_MAC_gNB/mac_rrc_ul_direct.c
+++ b/openair2/LAYER2/NR_MAC_gNB/mac_rrc_ul_direct.c
@@ -93,7 +93,6 @@ static void ue_context_modification_required_direct(const f1ap_ue_context_modif_
     du2cu->cellGroupConfig = malloc(du2cu->cellGroupConfig_length * sizeof(*du2cu->cellGroupConfig));
     AssertFatal(du2cu->cellGroupConfig != NULL, "out of memory\n");
     memcpy(du2cu->cellGroupConfig, required->du_to_cu_rrc_information->cellGroupConfig, du2cu->cellGroupConfig_length);
-    AssertFatal(required->du_to_cu_rrc_information->measGapConfig == NULL && required->du_to_cu_rrc_information->measGapConfig_length == 0, "not handled yet\n");
     AssertFatal(required->du_to_cu_rrc_information->requestedP_MaxFR1 == NULL && required->du_to_cu_rrc_information->requestedP_MaxFR1_length == 0, "not handled yet\n");
   }
   f1ap_msg->cause = required->cause;
diff --git a/openair2/LAYER2/NR_MAC_gNB/mac_rrc_ul_f1ap.c b/openair2/LAYER2/NR_MAC_gNB/mac_rrc_ul_f1ap.c
index 19bf8039b6..c7e23ed702 100644
--- a/openair2/LAYER2/NR_MAC_gNB/mac_rrc_ul_f1ap.c
+++ b/openair2/LAYER2/NR_MAC_gNB/mac_rrc_ul_f1ap.c
@@ -117,7 +117,6 @@ static void ue_context_modification_required_f1ap(const f1ap_ue_context_modif_re
     du2cu->cellGroupConfig = malloc(du2cu->cellGroupConfig_length * sizeof(*du2cu->cellGroupConfig));
     AssertFatal(du2cu->cellGroupConfig != NULL, "out of memory\n");
     memcpy(du2cu->cellGroupConfig, required->du_to_cu_rrc_information->cellGroupConfig, du2cu->cellGroupConfig_length);
-    AssertFatal(required->du_to_cu_rrc_information->measGapConfig == NULL && required->du_to_cu_rrc_information->measGapConfig_length == 0, "not handled yet\n");
     AssertFatal(required->du_to_cu_rrc_information->requestedP_MaxFR1 == NULL && required->du_to_cu_rrc_information->requestedP_MaxFR1_length == 0, "not handled yet\n");
   }
   f1ap_msg->cause = required->cause;