srsRAN_Project icon indicating copy to clipboard operation
srsRAN_Project copied to clipboard

incorect nRCellIdentity in NGAP userLocationInformationNR

Open RafalArciszewski opened this issue 7 months ago • 0 comments

Hello, srsRAN team!

I have configured two cells in monolithic gNB. Each of cell have different sector_id hence the NCGI of each should be different. I can see that in SIB1 each cell presents itself using configured sector_id, but on NGAP teh NCGI is always from the first cell configured.

Config:

cells:
  - pci: 9
    sector_id: 5
    prach:
      prach_root_sequence_index: 0
  - pci: 10
    sector_id: 10
    prach:
      prach_root_sequence_index: 64

SIB from cell0:

Image

SIB1 from cell1:

Image

id-UserLocationInformation from cell0 Image

id-UserLocationInformation from cell1

Image

I am using following commit:

--== srsRAN gNB (commit 2be82d8ea3) ==--

Initializing the Open Fronthaul Interface for sector#0: ul_compr=[BFP,9], dl_compr=[BFP,9], prach_compr=[BFP,9], prach_cp_enabled=true, downlink_broadcast=false
Initializing the Open Fronthaul Interface for sector#1: ul_compr=[BFP,9], dl_compr=[BFP,9], prach_compr=[BFP,9], prach_cp_enabled=true, downlink_broadcast=false
Cell pci=9, bw=100 MHz, 2T2R, dl_arfcn=625008 (n78), dl_freq=3375.12 MHz, dl_ssb_arfcn=622272, ul_freq=3375.12 MHz
Cell pci=10, bw=100 MHz, 2T2R, dl_arfcn=625008 (n78), dl_freq=3375.12 MHz, dl_ssb_arfcn=622272, ul_freq=3375.12 MHz

N2: Connection to AMF on 192.168.99.74:38412 completed
==== gNB started ===
Type <h> to view help

Regards, Rafał Arciszewski

RafalArciszewski avatar Apr 07 '25 11:04 RafalArciszewski