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author | Pau Espin Pedrol <pespin@sysmocom.de> | 2021-07-08 11:00:16 +0200 |
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committer | Pau Espin Pedrol <pespin@sysmocom.de> | 2021-07-09 10:45:04 +0200 |
commit | fd3204e0de381b5c8aa9cc25942961d6b4313dd4 (patch) | |
tree | 0c49856e0b79e1493e025caafcca74d446067d7c /doc | |
parent | 729980ef4c8c907373b83c34f31fac9621c6e535 (diff) |
doc: bts.adoc: Update dyn ts section to include SDCCH8 support
Related: SYS#5309
Change-Id: I40f4b19e7df83351c9c9e65d71880ac6aaa4ee88
Diffstat (limited to 'doc')
-rw-r--r-- | doc/manuals/chapters/bts.adoc | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/doc/manuals/chapters/bts.adoc b/doc/manuals/chapters/bts.adoc index acd22000c..1a693f9d0 100644 --- a/doc/manuals/chapters/bts.adoc +++ b/doc/manuals/chapters/bts.adoc @@ -272,10 +272,11 @@ specification for the detailed meaning of those timers. === Dynamic Timeslot Configuration (TCH / PDCH) -A dynamic timeslot is in principle a voice timeslot (TCH) that is used to serve -GPRS data (PDCH) when no voice call is active on it. This enhances GPRS -bandwidth while no voice calls are active, which is dynamically scaled down as -voice calls need to be served. This is a tremendous improvement in service over +A dynamic timeslot is in principle a timeslot that is used to serve GPRS data +(PDCH), but that can be switched to be used either for voice (TCH) or signalling +(SDCCH8) when all other static timeslots are already in use. This enhances GPRS +bandwidth while there is no CS load, and is dynamically scaled down as CS +services need to be served. This is a tremendous improvement in service over statically assigning a fixed number of timeslots for voice and data. The causality is as follows: to establish a voice call, the @@ -313,7 +314,7 @@ a PCU, SGSN and GGSN to provide the actual data service. ==== Osmocom Style Dynamic Timeslots (TCH/F_TCH/H_SDCCH8_PDCH) Timeslots of the `TCH/F_TCH/H_SDCCH8_PDCH` type dynamically switch between TCH/F, -TCH/H and PDCH, depending on the channel kind requested by the MSC. The RSL +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. BTS models supporting this timeslot kind are shown in <<dyn_ts_compat>>. |