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2 comments:

• File src/osmo-bsc/abis_rsl.c:

  • Patch Set #3, Line 974: msgb_put_u8(msg, RSL_IE_ERIC_PAGING_GROUP);

    msgb_tv_put(msg, RSL_IE_ERIC_PAGING_GROUP, pag_grp)

• File src/osmo-bsc/pcu_sock.c:

  • Patch Set #3, Line 484: extract_paging_group

    I am a bit puzzled here. Why do we need *paging* group when sending Immediate Assignment over AGCH? AGCH is used to assign Uplink TBFs on request from the MS, so the MS is expecting to receive an Immediate Assignment on AGCH regardless on its paging group.

    Paging group is needed when sending Immediate Assignment over PCH. In this case it's a Downlink TBF assignment, which needs to be sent in the correct time (determined by paging group), so that the MS does not miss it. This is already done above, see case PCU_IF_SAPI_PCH.

    I see you're saying in the commit message that it's required, but I am trying to understand why it's required and how can it be used internally by the BTS.

    Also, looks like PCU_IF_SAPI_AGCH_DT is defined but never used in osmo-pcu.git?

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