diff options
Diffstat (limited to 'doc/manuals/chapters/bts.adoc')
| -rw-r--r-- | doc/manuals/chapters/bts.adoc | 42 |
1 files changed, 23 insertions, 19 deletions
diff --git a/doc/manuals/chapters/bts.adoc b/doc/manuals/chapters/bts.adoc index 177d1c5f7..d119acca1 100644 --- a/doc/manuals/chapters/bts.adoc +++ b/doc/manuals/chapters/bts.adoc @@ -296,7 +296,7 @@ all BTS models support dynamic channels. .Dynamic timeslot support by various BTS models [cols="50%,25%,25%"] |=== -| |`TCH/F_TCH/H_SDCCH8_PDCH` |`TCH/F_PDCH` +| |`DYNAMIC/OSMOCOM` |`DYNAMIC/IPACCESS` |ip.access nanoBTS |- |supported |Ericsson RBS |supported |- |sysmoBTS using _osmo-bts-sysmo_ |supported |supported @@ -311,11 +311,13 @@ non-standard RSL messages used for these timeslot kinds. NOTE: Same as for dedicated PDCH timeslots, you need to enable GPRS and operate a PCU, SGSN and GGSN to provide the actual data service. -==== Osmocom Style Dynamic Timeslots (TCH/F_TCH/H_SDCCH8_PDCH) +==== Osmocom Style Dynamic Timeslots (DYNAMIC/OSMOCOM) -Timeslots of the `TCH/F_TCH/H_SDCCH8_PDCH` type dynamically switch between TCH/F, +`DYNAMIC/OSMOCOM` is an alias for `TCH/F_TCH/H_SDCCH8_PDCH`. + +Timeslots of the `DYNAMIC/OSMOCOM` type dynamically switch between TCH/F, TCH/H, SDCCH8 and PDCH, depending on the channel kind requested by the MSC. The RSL -messaging for `TCH/F_TCH/H_SDCCH8_PDCH` timeslots is compatible with Ericsson RBS. +messaging for these timeslots is compatible with Ericsson RBS. BTS models supporting this timeslot kind are shown in <<dyn_ts_compat>>. @@ -334,10 +336,12 @@ network In OsmoNITB, disabling TCH/F on Osmocom dynamic timeslots is the default. In OsmoBSC, the default is to allow both. -==== ip.access Style Dynamic Timeslots (TCH/F_PDCH) +==== ip.access Style Dynamic Timeslots (DYNAMIC/IPACCESS) + +`DYNAMIC/IPACCESS` is an alias for `TCH/F_PDCH`. -Timeslots of the `TCH/F_PDCH` type dynamically switch between TCH/F and PDCH. -The RSL messaging for `TCH/F_PDCH` timeslots is compatible with ip.access +Timeslots of the `DYNAMIC/IPACCESS` type dynamically switch between TCH/F and PDCH. +The RSL messaging for `DYNAMIC/IPACCESS` timeslots is compatible with ip.access nanoBTS. BTS models supporting this timeslot kind are shown in <<dyn_ts_compat>>. @@ -350,7 +354,7 @@ timeslots to TCH, and no PDCH timeslots would be left for GPRS service. ==== Dynamic Timeslot Configuration Examples -This is an extract of an `osmo-bsc`` config file. A timeslot configuration with +This is an extract of an `osmo-bsc` config file. A timeslot configuration with five Osmocom style dynamic timeslots and one dedicated PDCH may look like this: ---- @@ -362,20 +366,20 @@ network timeslot 1 phys_chan_config SDCCH8 timeslot 2 - phys_chan_config TCH/F_TCH/H_SDCCH8_PDCH + phys_chan_config DYNAMIC/OSMOCOM timeslot 3 - phys_chan_config TCH/F_TCH/H_SDCCH8_PDCH + phys_chan_config DYNAMIC/OSMOCOM timeslot 4 - phys_chan_config TCH/F_TCH/H_SDCCH8_PDCH + phys_chan_config DYNAMIC/OSMOCOM timeslot 5 - phys_chan_config TCH/F_TCH/H_SDCCH8_PDCH + phys_chan_config DYNAMIC/OSMOCOM timeslot 6 - phys_chan_config TCH/F_TCH/H_SDCCH8_PDCH + phys_chan_config DYNAMIC/OSMOCOM timeslot 7 phys_chan_config PDCH ---- -With the ip.access nanoBTS, only `TCH/F_PDCH` dynamic timeslots are supported, +With the ip.access nanoBTS, only `DYNAMIC/IPACCESS` dynamic timeslots are supported, and hence a nanoBTS configuration may look like this: ---- @@ -387,15 +391,15 @@ network timeslot 1 phys_chan_config SDCCH8 timeslot 2 - phys_chan_config TCH/F_PDCH + phys_chan_config DYNAMIC/IPACCESS timeslot 3 - phys_chan_config TCH/F_PDCH + phys_chan_config DYNAMIC/IPACCESS timeslot 4 - phys_chan_config TCH/F_PDCH + phys_chan_config DYNAMIC/IPACCESS timeslot 5 - phys_chan_config TCH/F_PDCH + phys_chan_config DYNAMIC/IPACCESS timeslot 6 - phys_chan_config TCH/F_PDCH + phys_chan_config DYNAMIC/IPACCESS timeslot 7 phys_chan_config PDCH ---- |