Change in osmo-gsm-manuals[master]: TRXC: add proposal for multiple Training Sequences

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fixeria gerrit-no-reply at lists.osmocom.org
Sat Feb 13 05:13:13 UTC 2021


fixeria has submitted this change. ( https://gerrit.osmocom.org/c/osmo-gsm-manuals/+/22611 )

Change subject: TRXC: add proposal for multiple Training Sequences
......................................................................

TRXC: add proposal for multiple Training Sequences

Change-Id: I621e46edac5d748472fd645f81876116904e260c
Related: SYS#4895, OS#4941, OS#4006
---
M common/chapters/trx_if.adoc
1 file changed, 26 insertions(+), 0 deletions(-)

Approvals:
  Jenkins Builder: Verified
  laforge: Looks good to me, but someone else must approve
  fixeria: Looks good to me, approved



diff --git a/common/chapters/trx_if.adoc b/common/chapters/trx_if.adoc
index 65fb569..05c56a5 100644
--- a/common/chapters/trx_if.adoc
+++ b/common/chapters/trx_if.adoc
@@ -174,6 +174,32 @@
 |13| PDTCH+PACCH+PTCCH
 |===
 
+===== Multiple Training Sequences (optional)
+
+For some setups it's insufficient to have a single Training Sequence Code assigned
+to all timeslots of a transceiver.  It may be required to use different TSCs for
+some (or even all) timeslots.  This can be achieved by sending `SETSLOT` command
+with additional arguments:
+----
+CMD SETSLOT <timeslot> <chantype> [ C<c>/S<s> ]
+RSP SETSLOT <status> <timeslot> <chantype> [ C<c>/S<s> ]
+----
+
+where `<c>` is a Training Sequence Code from TSC set `<s>`.
+
+NOTE: The numbering of both Training Sequence Code and set shall be the same as in
+3GPP TS 45.002, e.g. `C0S1` corresponds to the first sequence in the first TSC set
+for a chosen modulation type.  TSC Set number 0 (`S0`) does not exist in the specs.
+
+.Example: configuring timeslot 4 to use TCH/F and TSC 7 from set 1
+----
+CMD SETSLOT 4 1 C7/S1
+RSP SETSLOT 0 4 1 C7/S1
+----
+
+Unless explicitly configured as described above, all timeslots will be using the
+default Training Sequence Code and set configured with the `SETTSC` command.
+
 ==== TRXD header version negotiation
 
 Messages on DATA interface may have different header formats, defined by a

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Gerrit-Project: osmo-gsm-manuals
Gerrit-Branch: master
Gerrit-Change-Id: I621e46edac5d748472fd645f81876116904e260c
Gerrit-Change-Number: 22611
Gerrit-PatchSet: 2
Gerrit-Owner: fixeria <vyanitskiy at sysmocom.de>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: fixeria <vyanitskiy at sysmocom.de>
Gerrit-Reviewer: laforge <laforge at osmocom.org>
Gerrit-CC: pespin <pespin at sysmocom.de>
Gerrit-MessageType: merged
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