Hi <name in Cyrillic>,

we currently have two types of dynamic channels, both of which are available and working with osmo-bts-trx, with the limitation that OsmoNITB can't transcode TCH/H <-> TCH/F.

See chapter 9.7 "Dynamic Timeslot Configuration" in the OsmoBSC User Manual https://ftp.osmocom.org/docs/latest/osmobsc-usermanual.pdf and the reference to https://osmocom.org/issues/1778 in 9.7.1.

Configuration suggestions are also found in that chapter.

BTW, about TCH/H_PDCH: https://osmocom.org/issues/1781

~N

On Wed, Dec 28, 2016 at 03:34:27PM +0300, Родион Гадыршин wrote:

Hello, list.

I have umtrx v2.1 and I have already built GSM and GPRS components. Now I want to know which way of configuring timeslots in osmobsc.cfn is the best. I want GPRS, calls and SMS work. My current configuration is:

timeslot 0 phys_chan_config CCCH+SDCCH4 hopping enabled 0 timeslot 1 phys_chan_config SDCCH8 hopping enabled 0 timeslot 2 phys_chan_config TCH/F hopping enabled 0 timeslot 3 phys_chan_config TCH/F hopping enabled 0 timeslot 4 phys_chan_config PDCH hopping enabled 0 timeslot 5 phys_chan_config PDCH hopping enabled 0 timeslot 6 phys_chan_config PDCH hopping enabled 0 timeslot 7 phys_chan_config PDCH hopping enabled 0

Is there a better way to configure? Maybe better use TCH/F_TCH/H_PDCH, but I have heard, that TCH/F is currently not working in dynamic configurations - only TCH/H does. And there is no only TCH/H_PDCH mode. So, could you please give me an advice?