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srsran / srsRAN_Project

Open source O-RAN 5G CU/DU solution from Software Radio Systems (SRS) https://docs.srsran.com/projects/project
https://www.srsran.com
GNU Affero General Public License v3.0
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unstable cellular connection #885

Closed Nikolaj-1 closed 1 month ago

Nikolaj-1 commented 1 month ago

Cellular connection constantly bounces. I use PLuto+ SDR and Raspberry 4. SRSRAN build ## 23.04 Oct 21 14:46:32 SRS epc.sh[365762]: Initial UE message: LIBLTE_MME_MSG_TYPE_TRACKING_AREA_UPDATE_REQUEST Oct 21 14:46:32 SRS epc.sh[365762]: Received Initial UE message -- Tracking Area Update Request Oct 21 14:46:32 SRS epc.sh[365762]: Tracking Area Update Request -- S-TMSI 0x4b37c29f Oct 21 14:46:32 SRS epc.sh[365762]: Tracking Area Update Request -- eNB UE S1AP Id 3765 Oct 21 14:46:32 SRS epc.sh[365762]: Warning: Tracking area update requests are not handled yet. Oct 21 14:46:38 SRS epc.sh[365762]: Received UE Context Release Request. MME-UE S1AP Id 4 Oct 21 14:46:38 SRS epc.sh[365762]: There are active E-RABs, send release access bearers request Oct 21 14:46:38 SRS epc.sh[365762]: Received GTP-C PDU. Message type: GTPC_MSG_TYPE_RELEASE_ACCESS_BEARERS_REQUEST Oct 21 14:46:38 SRS epc.sh[365762]: Received UE Context Release Complete. MME-UE S1AP Id 4 Oct 21 14:46:38 SRS epc.sh[365762]: UE Context Release Completed. Oct 21 14:46:42 SRS epc.sh[365762]: Initial UE message: LIBLTE_MME_MSG_TYPE_ATTACH_REQUEST Oct 21 14:46:42 SRS epc.sh[365762]: Received Initial UE message -- Attach Request Oct 21 14:46:42 SRS epc.sh[365762]: Attach request -- M-TMSI: 0x4b37c29f Oct 21 14:46:42 SRS epc.sh[365762]: Attach request -- eNB-UE S1AP Id: 3766 Oct 21 14:46:42 SRS epc.sh[365762]: Attach request -- Attach type: 2 Oct 21 14:46:42 SRS epc.sh[365762]: Attach Request -- UE Network Capabilities EEA: 11110000 Oct 21 14:46:42 SRS epc.sh[365762]: Attach Request -- UE Network Capabilities EIA: 01110000 Oct 21 14:46:42 SRS epc.sh[365762]: Attach Request -- MS Network Capabilities Present: true Oct 21 14:46:42 SRS epc.sh[365762]: PDN Connectivity Request -- EPS Bearer Identity requested: 0 Oct 21 14:46:42 SRS epc.sh[365762]: PDN Connectivity Request -- Procedure Transaction Id: 37 Oct 21 14:46:42 SRS epc.sh[365762]: PDN Connectivity Request -- ESM Information Transfer requested: true Oct 21 14:46:43 SRS epc.sh[365762]: UL NAS: Received Identity Response Oct 21 14:46:43 SRS epc.sh[365762]: ID Response -- IMSI: 999990000000004 Oct 21 14:46:43 SRS epc.sh[365762]: Downlink NAS: Sent Authentication Request Oct 21 14:46:43 SRS epc.sh[365762]: UL NAS: Received Authentication Response Oct 21 14:46:43 SRS epc.sh[365762]: Authentication Response -- IMSI 999990000000004 Oct 21 14:46:43 SRS epc.sh[365762]: UE Authentication Accepted. Oct 21 14:46:43 SRS epc.sh[365762]: Generating KeNB with UL NAS COUNT: 0 Oct 21 14:46:43 SRS epc.sh[365762]: Downlink NAS: Sending NAS Security Mode Command. Oct 21 14:46:43 SRS epc.sh[365762]: UL NAS: Received Security Mode Complete Oct 21 14:46:43 SRS epc.sh[365762]: Security Mode Command Complete -- IMSI: 999990000000004 Oct 21 14:46:43 SRS epc.sh[365762]: Sending ESM information request Oct 21 14:46:43 SRS epc.sh[365762]: UL NAS: Received ESM Information Response Oct 21 14:46:43 SRS epc.sh[365762]: ESM Info: APN mtelecom Oct 21 14:46:43 SRS epc.sh[365762]: Getting subscription information -- QCI 7 Oct 21 14:46:43 SRS epc.sh[365762]: Sending Create Session Request. Oct 21 14:46:43 SRS epc.sh[365762]: Creating Session Response -- IMSI: 999990000000004 Oct 21 14:46:43 SRS epc.sh[365762]: Creating Session Response -- MME control TEID: 2 Oct 21 14:46:43 SRS epc.sh[365762]: Received GTP-C PDU. Message type: GTPC_MSG_TYPE_CREATE_SESSION_REQUEST Oct 21 14:46:43 SRS epc.sh[365762]: SPGW: Allocated Ctrl TEID 2 Oct 21 14:46:43 SRS epc.sh[365762]: SPGW: Allocated User TEID 2 Oct 21 14:46:43 SRS epc.sh[365762]: SPGW: Allocate UE IP 172.16.0.3 Oct 21 14:46:43 SRS epc.sh[365762]: Received Create Session Response Oct 21 14:46:43 SRS epc.sh[365762]: Create Session Response -- SPGW control TEID 2 Oct 21 14:46:43 SRS epc.sh[365762]: Create Session Response -- SPGW S1-U Address: 127.0.1.100 Oct 21 14:46:43 SRS epc.sh[365762]: SPGW Allocated IP 172.16.0.3 to IMSI 999990000000004 Oct 21 14:46:43 SRS epc.sh[365762]: Adding attach accept to Initial Context Setup Request Oct 21 14:46:43 SRS epc.sh[365762]: Sent Initial Context Setup Request. E-RAB id 5 Oct 21 14:46:43 SRS epc.sh[365762]: Received Initial Context Setup Response Oct 21 14:46:43 SRS epc.sh[365762]: E-RAB Context Setup. E-RAB id 5 Oct 21 14:46:43 SRS epc.sh[365762]: E-RAB Context -- eNB TEID 0xdf0; eNB GTP-U Address 127.0.1.1 Oct 21 14:46:43 SRS epc.sh[365762]: UL NAS: Received Attach Complete Oct 21 14:46:43 SRS epc.sh[365762]: Unpacked Attached Complete Message. IMSI 999990000000004 Oct 21 14:46:43 SRS epc.sh[365762]: Unpacked Activate Default EPS Bearer message. EPS Bearer id 5 Oct 21 14:46:43 SRS epc.sh[365762]: Received GTP-C PDU. Message type: GTPC_MSG_TYPE_MODIFY_BEARER_REQUEST Oct 21 14:46:43 SRS epc.sh[365762]: Sending EMM Information Oct 21 14:46:45 SRS epc.sh[365762]: UL NAS: PDN Connectivity Request Oct 21 14:46:45 SRS epc.sh[365762]: DL NAS: Sending PDN Connectivity Reject Oct 21 14:46:50 SRS epc.sh[365762]: Initial UE message: NAS Message Type Unknown Oct 21 14:46:50 SRS epc.sh[365762]: Received Initial UE message -- Service Request Oct 21 14:46:50 SRS epc.sh[365762]: Service request -- S-TMSI 0x493626be Oct 21 14:46:50 SRS epc.sh[365762]: Service request -- eNB UE S1AP Id 3767 Oct 21 14:46:50 SRS epc.sh[365762]: Service Request -- Short MAC valid Oct 21 14:46:50 SRS epc.sh[365762]: Service Request -- User is ECM DISCONNECTED Oct 21 14:46:50 SRS epc.sh[365762]: UE previously assigned IP: 172.16.0.2 Oct 21 14:46:50 SRS epc.sh[365762]: Generating KeNB with UL NAS COUNT: 5 Oct 21 14:46:50 SRS epc.sh[365762]: UE Ctr TEID 0 Oct 21 14:46:50 SRS epc.sh[365762]: Sent Initial Context Setup Request. E-RAB id 5 Oct 21 14:46:50 SRS epc.sh[365762]: Found UE for Downlink Notification Oct 21 14:46:50 SRS epc.sh[365762]: MME Ctr TEID 0x1, IMSI: 999990000000002 Oct 21 14:46:50 SRS epc.sh[365762]: Received Initial Context Setup Response Oct 21 14:46:50 SRS epc.sh[365762]: E-RAB Context Setup. E-RAB id 5 Oct 21 14:46:50 SRS epc.sh[365762]: E-RAB Context -- eNB TEID 0xdf1; eNB GTP-U Address 127.0.1.1 Oct 21 14:46:50 SRS epc.sh[365762]: Initial Context Setup Response triggered from Service Request. Oct 21 14:46:50 SRS epc.sh[365762]: Sending Modify Bearer Request. Oct 21 14:46:50 SRS epc.sh[365762]: Received GTP-C PDU. Message type: GTPC_MSG_TYPE_MODIFY_BEARER_REQUEST Oct 21 14:46:50 SRS epc.sh[365762]: Modify Bearer Request received after Downling Data Notification was sent Oct 21 14:46:52 SRS epc.sh[365762]: T3413 expired -- Could not page the ue. Oct 21 14:46:52 SRS epc.sh[365762]: Received GTP-C PDU. Message type: GTPC_MSG_TYPE_DOWNLINK_DATA_NOTIFICATION_FAILURE_INDICATION Oct 21 14:46:53 SRS epc.sh[365762]: UL NAS: PDN Connectivity Request Oct 21 14:46:53 SRS epc.sh[365762]: DL NAS: Sending PDN Connectivity Reject Oct 21 14:47:01 SRS epc.sh[365762]: UL NAS: PDN Connectivity Request Oct 21 14:47:01 SRS epc.sh[365762]: DL NAS: Sending PDN Connectivity Reject Oct 21 14:47:02 SRS epc.sh[365762]: Received UE Context Release Request. MME-UE S1AP Id 5 Oct 21 14:47:02 SRS epc.sh[365762]: No UE context to release found. MME-UE S1AP Id: 5 Oct 21 14:47:09 SRS epc.sh[365762]: UL NAS: PDN Connectivity Request Oct 21 14:47:09 SRS epc.sh[365762]: DL NAS: Sending PDN Connectivity Reject Oct 21 14:47:13 SRS epc.sh[365762]: Received UE Context Release Request. MME-UE S1AP Id 6 Oct 21 14:47:13 SRS epc.sh[365762]: There are active E-RABs, send release access bearers request Oct 21 14:47:13 SRS epc.sh[365762]: Received GTP-C PDU. Message type: GTPC_MSG_TYPE_RELEASE_ACCESS_BEARERS_REQUEST Oct 21 14:47:13 SRS epc.sh[365762]: Received UE Context Release Complete. MME-UE S1AP Id 6 Oct 21 14:47:13 SRS epc.sh[365762]: UE Context Release Completed. Oct 21 14:47:17 SRS epc.sh[365762]: Initial UE message: NAS Message Type Unknown Oct 21 14:47:17 SRS epc.sh[365762]: Received Initial UE message -- Service Request Oct 21 14:47:17 SRS epc.sh[365762]: Service request -- S-TMSI 0x493626bf Oct 21 14:47:17 SRS epc.sh[365762]: Service request -- eNB UE S1AP Id 3768 Oct 21 14:47:17 SRS epc.sh[365762]: Service Request -- Short MAC valid Oct 21 14:47:17 SRS epc.sh[365762]: Service Request -- User is ECM DISCONNECTED Oct 21 14:47:17 SRS epc.sh[365762]: UE previously assigned IP: 172.16.0.3 Oct 21 14:47:17 SRS epc.sh[365762]: Generating KeNB with UL NAS COUNT: 7 Oct 21 14:47:17 SRS epc.sh[365762]: UE Ctr TEID 0 Oct 21 14:47:17 SRS epc.sh[365762]: Sent Initial Context Setup Request. E-RAB id 5 Oct 21 14:47:17 SRS epc.sh[365762]: Received Initial Context Setup Response Oct 21 14:47:17 SRS epc.sh[365762]: E-RAB Context Setup. E-RAB id 5 Oct 21 14:47:17 SRS epc.sh[365762]: E-RAB Context -- eNB TEID 0xdf2; eNB GTP-U Address 127.0.1.1 Oct 21 14:47:17 SRS epc.sh[365762]: Initial Context Setup Response triggered from Service Request. Oct 21 14:47:17 SRS epc.sh[365762]: Sending Modify Bearer Request. Oct 21 14:47:17 SRS epc.sh[365762]: Received GTP-C PDU. Message type: GTPC_MSG_TYPE_MODIFY_BEARER_REQUEST Oct 21 14:47:17 SRS epc.sh[365762]: UL NAS: PDN Connectivity Request Oct 21 14:47:17 SRS epc.sh[365762]: DL NAS: Sending PDN Connectivity Reject

pgawlowicz commented 1 month ago

Which core do you use?

Nikolaj-1 commented 1 month ago

root@SRS:/srsRAN_4G# cat /proc/version Linux version 5.15.0-1055-raspi (buildd@bos02-arm64-026) (gcc (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0, GNU ld (GNU Binutils for Ubuntu) 2.38) #58-Ubuntu SMP PREEMPT Sat May 4 03:52:40 UTC 2024

pgawlowicz commented 1 month ago

do you want to setup 4g or 5g network?

Nikolaj-1 commented 1 month ago

I setup 4G network. Below you can find some additional EPC logs

Oct 21 15:49:14 SRS epc.sh[365762]: Received GTP-C PDU. Message type: GTPC_MSG_TYPE_DELETE_SESSION_REQUEST Oct 21 15:49:14 SRS epc.sh[365762]: Downlink NAS: Sent Authentication Request Oct 21 15:49:14 SRS epc.sh[365762]: UL NAS: Received Authentication Response Oct 21 15:49:14 SRS epc.sh[365762]: Authentication Response -- IMSI 999990000000004 Oct 21 15:49:14 SRS epc.sh[365762]: UE Authentication Accepted. Oct 21 15:49:14 SRS epc.sh[365762]: Generating KeNB with UL NAS COUNT: 0 Oct 21 15:49:14 SRS epc.sh[365762]: Downlink NAS: Sending NAS Security Mode Command. Oct 21 15:49:14 SRS epc.sh[365762]: UL NAS: Received Security Mode Complete Oct 21 15:49:14 SRS epc.sh[365762]: Security Mode Command Complete -- IMSI: 999990000000004 Oct 21 15:49:14 SRS epc.sh[365762]: Sending ESM information request Oct 21 15:49:34 SRS epc.sh[365762]: Received UE Context Release Request. MME-UE S1AP Id 87 Oct 21 15:49:34 SRS epc.sh[365762]: No UE context to release found. MME-UE S1AP Id: 87 Oct 21 15:49:37 SRS epc.sh[365762]: Received UE Context Release Request. MME-UE S1AP Id 88 Oct 21 15:49:37 SRS epc.sh[365762]: There are active E-RABs, send release access bearers request Oct 21 15:49:37 SRS epc.sh[365762]: Received GTP-C PDU. Message type: GTPC_MSG_TYPE_RELEASE_ACCESS_BEARERS_REQUEST Oct 21 15:49:37 SRS epc.sh[365762]: Received UE Context Release Complete. MME-UE S1AP Id 88 Oct 21 15:49:37 SRS epc.sh[365762]: UE Context Release Completed. Oct 21 15:49:38 SRS epc.sh[365762]: Received UE Context Release Request. MME-UE S1AP Id 89 Oct 21 15:49:38 SRS epc.sh[365762]: There are active E-RABs, send release access bearers request Oct 21 15:49:38 SRS epc.sh[365762]: Received GTP-C PDU. Message type: GTPC_MSG_TYPE_RELEASE_ACCESS_BEARERS_REQUEST Oct 21 15:49:38 SRS epc.sh[365762]: Received UE Context Release Complete. MME-UE S1AP Id 89 Oct 21 15:49:38 SRS epc.sh[365762]: UE Context Release Completed. Oct 21 15:49:39 SRS epc.sh[365762]: Initial UE message: LIBLTE_MME_MSG_TYPE_ATTACH_REQUEST Oct 21 15:49:39 SRS epc.sh[365762]: Received Initial UE message -- Attach Request Oct 21 15:49:39 SRS epc.sh[365762]: Attach request -- M-TMSI: 0x493626c0 Oct 21 15:49:39 SRS epc.sh[365762]: Attach request -- eNB-UE S1AP Id: 3850 Oct 21 15:49:39 SRS epc.sh[365762]: Attach request -- Attach type: 2 Oct 21 15:49:39 SRS epc.sh[365762]: Attach Request -- UE Network Capabilities EEA: 11110000 Oct 21 15:49:39 SRS epc.sh[365762]: Attach Request -- UE Network Capabilities EIA: 01110000 Oct 21 15:49:39 SRS epc.sh[365762]: Attach Request -- MS Network Capabilities Present: true Oct 21 15:49:39 SRS epc.sh[365762]: PDN Connectivity Request -- EPS Bearer Identity requested: 0 Oct 21 15:49:39 SRS epc.sh[365762]: PDN Connectivity Request -- Procedure Transaction Id: 43 Oct 21 15:49:39 SRS epc.sh[365762]: PDN Connectivity Request -- ESM Information Transfer requested: true Oct 21 15:49:39 SRS epc.sh[365762]: Attach Request -- Found previously attach UE. Oct 21 15:49:39 SRS epc.sh[365762]: Found UE context. IMSI: 999990000000004, old eNB UE S1ap Id 3849, old MME UE S1AP Id 91 Oct 21 15:49:39 SRS epc.sh[365762]: GUTI Attach -- NAS Integrity OK. UL count 1, DL count 1 Oct 21 15:49:39 SRS epc.sh[365762]: Generating KeNB with UL NAS COUNT: 1 Oct 21 15:49:39 SRS epc.sh[365762]: Secure ESM information transfer requested. Oct 21 15:49:39 SRS epc.sh[365762]: UL NAS: Received ESM Information Response Oct 21 15:49:39 SRS epc.sh[365762]: ESM Info: APN mtelecom Oct 21 15:49:39 SRS epc.sh[365762]: Getting subscription information -- QCI 7 Oct 21 15:49:39 SRS epc.sh[365762]: Sending Create Session Request. Oct 21 15:49:39 SRS epc.sh[365762]: Creating Session Response -- IMSI: 999990000000004 Oct 21 15:49:39 SRS epc.sh[365762]: Creating Session Response -- MME control TEID: 5 Oct 21 15:49:39 SRS epc.sh[365762]: Received GTP-C PDU. Message type: GTPC_MSG_TYPE_CREATE_SESSION_REQUEST Oct 21 15:49:39 SRS epc.sh[365762]: SPGW: Allocated Ctrl TEID 5 Oct 21 15:49:39 SRS epc.sh[365762]: SPGW: Allocated User TEID 5 Oct 21 15:49:39 SRS epc.sh[365762]: SPGW: Allocate UE IP 172.16.0.6 Oct 21 15:49:39 SRS epc.sh[365762]: Received Create Session Response Oct 21 15:49:39 SRS epc.sh[365762]: Create Session Response -- SPGW control TEID 5 Oct 21 15:49:39 SRS epc.sh[365762]: Create Session Response -- SPGW S1-U Address: 127.0.1.100 Oct 21 15:49:39 SRS epc.sh[365762]: SPGW Allocated IP 172.16.0.6 to IMSI 999990000000004 Oct 21 15:49:39 SRS epc.sh[365762]: Adding attach accept to Initial Context Setup Request Oct 21 15:49:39 SRS epc.sh[365762]: Sent Initial Context Setup Request. E-RAB id 5 Oct 21 15:49:39 SRS epc.sh[365762]: Received Initial Context Setup Response Oct 21 15:49:39 SRS epc.sh[365762]: E-RAB Context Setup. E-RAB id 5 Oct 21 15:49:39 SRS epc.sh[365762]: E-RAB Context -- eNB TEID 0xe40; eNB GTP-U Address 127.0.1.1 Oct 21 15:49:39 SRS epc.sh[365762]: UL NAS: Received Attach Complete Oct 21 15:49:39 SRS epc.sh[365762]: Unpacked Attached Complete Message. IMSI 999990000000004 Oct 21 15:49:39 SRS epc.sh[365762]: Unpacked Activate Default EPS Bearer message. EPS Bearer id 5 Oct 21 15:49:39 SRS epc.sh[365762]: Received GTP-C PDU. Message type: GTPC_MSG_TYPE_MODIFY_BEARER_REQUEST Oct 21 15:49:39 SRS epc.sh[365762]: Sending EMM Information Oct 21 15:49:42 SRS epc.sh[365762]: UL NAS: PDN Connectivity Request Oct 21 15:49:42 SRS epc.sh[365762]: DL NAS: Sending PDN Connectivity Reject Oct 21 15:49:44 SRS epc.sh[365762]: Received UE Context Release Request. MME-UE S1AP Id 91 Oct 21 15:49:44 SRS epc.sh[365762]: There are active E-RABs, send release access bearers request Oct 21 15:49:44 SRS epc.sh[365762]: Received GTP-C PDU. Message type: GTPC_MSG_TYPE_RELEASE_ACCESS_BEARERS_REQUEST Oct 21 15:49:44 SRS epc.sh[365762]: Received UE Context Release Complete. MME-UE S1AP Id 92 Oct 21 15:49:44 SRS epc.sh[365762]: UE Context Release Completed.

pgawlowicz commented 1 month ago

This repository is dedicated to the 5G srsRAN-Project, please move this discussion to the 4G project here