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ENDC path switch S1-U: Integrated S1AP E-RAB-Modification indication message at eNB, interfacing with RRC and X2AP to get proper configuration of E-RABs to be modified and GTP-U configuration at gNB

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This commit is contained in:
matzakos
2020-03-11 10:37:48 +01:00
parent e7c5bc55c4
commit 07a2a095d3
22 changed files with 449 additions and 60 deletions
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openair2/COMMON/s1ap_messages_def.h
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@@ -66,6 +66,7 @@ MESSAGE_DEF(S1AP_E_RAB_MODIFY_RESP , MESSAGE_PRIORITY_MED, s1ap_e_rab_m
MESSAGE_DEF(S1AP_E_RAB_RELEASE_RESPONSE , MESSAGE_PRIORITY_MED, s1ap_e_rab_release_resp_t , s1ap_e_rab_release_resp)
MESSAGE_DEF(S1AP_PATH_SWITCH_REQ , MESSAGE_PRIORITY_MED, s1ap_path_switch_req_t , s1ap_path_switch_req)
MESSAGE_DEF(S1AP_PATH_SWITCH_REQ_ACK , MESSAGE_PRIORITY_MED, s1ap_path_switch_req_ack_t , s1ap_path_switch_req_ack)
MESSAGE_DEF(S1AP_E_RAB_MODIFICATION_IND , MESSAGE_PRIORITY_MED, s1ap_e_rab_modification_ind_t , s1ap_e_rab_modification_ind)
/* S1AP -> RRC messages */
MESSAGE_DEF(S1AP_DOWNLINK_NAS , MESSAGE_PRIORITY_MED, s1ap_downlink_nas_t , s1ap_downlink_nas )
openair2/COMMON/s1ap_messages_types.h
+37 -1
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@@ -45,6 +45,7 @@
#define S1AP_E_RAB_MODIFY_RESP(mSGpTR) (mSGpTR)->ittiMsg.s1ap_e_rab_modify_resp
#define S1AP_PATH_SWITCH_REQ(mSGpTR) (mSGpTR)->ittiMsg.s1ap_path_switch_req
#define S1AP_PATH_SWITCH_REQ_ACK(mSGpTR) (mSGpTR)->ittiMsg.s1ap_path_switch_req_ack
#define S1AP_E_RAB_MODIFICATION_IND(mSGpTR) (mSGpTR)->ittiMsg.s1ap_e_rab_modification_ind
#define S1AP_DOWNLINK_NAS(mSGpTR) (mSGpTR)->ittiMsg.s1ap_downlink_nas
#define S1AP_INITIAL_CONTEXT_SETUP_REQ(mSGpTR) (mSGpTR)->ittiMsg.s1ap_initial_context_setup_req
@@ -281,12 +282,26 @@ typedef struct e_rab_tobe_added_s {
uint8_t drb_ID;
/* The transport layer address for the IP packets */
transport_layer_addr_t eNB_addr;
transport_layer_addr_t sgw_addr;
/* S-GW Tunnel endpoint identifier */
uint32_t gtp_teid;
} e_rab_tobe_added_t;
typedef struct e_rab_admitted_tobe_added_s {
/* Unique e_rab_id for the UE. */
uint8_t e_rab_id;
/* Unique drb_ID for the UE. */
uint8_t drb_ID;
/* The transport layer address for the IP packets */
transport_layer_addr_t gnb_addr;
/* S-GW Tunnel endpoint identifier */
uint32_t gtp_teid;
} e_rab_admitted_tobe_added_t;
typedef struct e_rab_tobeswitched_s {
@@ -646,6 +661,27 @@ typedef struct s1ap_path_switch_req_ack_s {
} s1ap_path_switch_req_ack_t;
typedef struct s1ap_e_rab_modification_ind_s {
unsigned eNB_ue_s1ap_id:24;
/* MME UE id */
uint32_t mme_ue_s1ap_id;
/* Number of e_rab setup-ed in the list */
uint8_t nb_of_e_rabs_tobemodified;
uint8_t nb_of_e_rabs_nottobemodified;
/* list of e_rab setup-ed by RRC layers */
e_rab_setup_t e_rabs_tobemodified[S1AP_MAX_E_RAB];
e_rab_setup_t e_rabs_nottobemodified[S1AP_MAX_E_RAB];
uint16_t ue_initial_id;
} s1ap_e_rab_modification_ind_t;
// S1AP --> RRC messages
typedef struct s1ap_ue_release_command_s {
openair2/COMMON/x2ap_messages_types.h
+1 -1
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@@ -363,7 +363,7 @@ typedef struct x2ap_ENDC_sgnb_addition_req_ACK_s {
uint8_t nb_e_rabs_admitted_tobeadded;
/* list of e_rab to be added by RRC layers */
e_rab_tobe_added_t e_rabs_admitted_tobeadded[S1AP_MAX_E_RAB];
e_rab_admitted_tobe_added_t e_rabs_admitted_tobeadded[S1AP_MAX_E_RAB];
/* list of e_rab to be setup by RRC layers */
e_rab_t e_rab_param[S1AP_MAX_E_RAB];