Cell Broadcasting not working in CORE Huawei + RAN Ericsson

RAN
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1

Hello Expert.

We are implementing a CBC - Cell Broadcasting solution on our network.

But facing a weird issue…

Cell Broadcasting not working in CORE Huawei + RAN Ericsson
Cell Broadcasting not working in CORE Huawei + RAN Ericsson1060×708 34.7 KB

This is the scenario:
CORE (of the entire network) = Huawei
RAN → Ericsson (50%) + Huawei (50%)

We managed to send the message on SIB11. But SIB11(ETWS) is Japanese standard

And we need American standard SIB12 (CMAS).

But we can’t get the Cellbroadcast message (info) to be sent.

  • Core Huawei - RAN Huawei → OK, working
  • Core Huawei - RAN Ericsson → NOT OK, Not working

Is there any advanced optimization that allows information (SIB12) to reach RAN Ericsson users?

Notes

  • SIB11 only work in Ericsson RAN if we disable “Concurrent Warning Mesage indicator” in CBC platform
  • SIB12 - never work, and we need to be (CMAS)
2

We have successfully implemented CMAS recently, but with CORE + RAN both Ericsson.

3

Have you compared all the IE on the sib messages between the case when it works(H) vs the other case? maybe the answer is there.

4

Hi, have you mapped SIB12? SIB12 must be mapped to a unique SI to which no other SIBs are mapped. Engage local Ericsson team for configuration of CMAS/further information.