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Max msuraev at sysmocom.deHi. I'm troubleshooting peculiar use case with packet access and osmo-bts-trx. There are 2 options for ME to acknowledge reception of control packet to PCU according to 3GPP TS 44.060 § 11.2.2: 1) Packet Control Acknowledgement message 2) 4 identical access bursts The latter can be both 8-bit RACH and 11-bit RACH (not supported by osmo-bts-trx yet). The choice of response format is defined by OpenBSC in SI: 1) is default, 2) can be activated with "gprs control-ack-type-rach" option. The problem is that I don't understand how 2) will be handled by OsmoTRX? Shall I expect 4 consecutive RACH messages via rx_rach_fn() in scheduler_trx.c in osmo-bts-trx? Shall it be some other message/function? Will it be ignored/dropped altogether by OsmoTRX? -- Max Suraev <msuraev at sysmocom.de> http://www.sysmocom.de/ ======================================================================= * sysmocom - systems for mobile communications GmbH * Alt-Moabit 93 * 10559 Berlin, Germany * Sitz / Registered office: Berlin, HRB 134158 B * Geschaeftsfuehrer / Managing Director: Harald Welte