Multi-UE: problems with gNB and UE during concurrent attach: no RRC reconfiguration for some UEs
when connecting multiple UEs to gNB in RFsim: some UEs do not complete RRC connection setup (they do not get until an RRC Reconfiguration) and therefore also no IP address
Relevant UE log:
[RLC] /home/richie/integration_2023_w32/openair2/LAYER2/nr_rlc/nr_rlc_oai_api.c:703:nr_rlc_add_srb: added srb 1 to UE with RNTI 0xf844
[NR_RRC] [UE 0], CONFIG_SRB1 1 corresponding to gNB_index 0
[NR_RRC] [FRAME 00619][RRC_UE][MOD 00][][--- MAC_CONFIG_REQ (SRB1 gNB 0) --->][MAC_UE][MOD 00][]
[NR_RRC] [UE 0] State = NR_RRC_CONNECTED (gNB 0)
[NR_RRC] [UE 0][RAPROC] Frame 619 : Logical Channel UL-DCCH (SRB1), Generating RRCSetupComplete (bytes39, gNB 0)
[NAS] [UE 0] Received NAS_DOWNLINK_DATA_IND: length 42 , buffer 0x7f972c006430
[NAS] nr_nas_msg_sim.c:330 derive_kgnb with count= 0
kgnb : 35 57 f4 b6 30 3e 56 26 09 d1 e9 26 0b af c3 a6 94 e7 50 8b b3 bc a8 29 cc 74 aa 86 bc 49 23 7f
kausf:13 8c e 5a c1 42 4b 1f ab 5b 8f d6 f d9 34 d a9 f5 9c 52 6f cf a0 f2 cb 47 58 f0 46 97 91 3a
kseaf:68 11 bc b2 fe d1 b5 6b 25 f3 8a de 25 e b3 1b 7e c 7b 3d be 12 ef bc 54 20 97 b0 a6 82 36 fd
kamf:6c a0 46 92 72 b1 56 f7 81 30 95 ec 57 44 97 62 d4 70 73 d1 3c bb 53 c4 93 cb ce 8c d6 d0 9d b0
knas_int:
8b 73 e4 37 e2 3c 75 f6 8 b5 4f fb 66 1e e0 1b
[NR_RRC] [UE 0] Received NAS_UPLINK_DATA_REQ: UEid 0
[NAS] [UE 0] Received NAS_DOWNLINK_DATA_IND: length 21 , buffer 0x7f972c005490
mac a0 7 cb 26
[NR_RRC] [UE 0] Received NAS_UPLINK_DATA_REQ: UEid 0
Relevant gNB log: TBD
Reason: to be found
How to reproduce: start gNB, start 8 UEs at (at least nearly) the same time. Some will not get RRC Reconfiguration.
Tag: 2023.w32
It happened a least already in 2023.w21
Edited by Robert Schmidt