bts: document the default FDMA/TDMA configuration

Change-Id: I988f783c1e91c916982609c0f30088b00d00674e
---
M bts/BTS_Tests.default
1 file changed, 32 insertions(+), 1 deletion(-)


git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks refs/changes/96/41696/1

diff --git a/bts/BTS_Tests.default b/bts/BTS_Tests.default
index 9f89ed5..91fea67 100644
--- a/bts/BTS_Tests.default
+++ b/bts/BTS_Tests.default
@@ -31,7 +31,38 @@
 Osmocom_VTY_Functions.mp_prompt_prefix := "OsmoBTS";
 PCUIF_Types.mp_pcuif_version := 12;
 
-# Configuration for each individual transceiver
+/* This is the default (non-hopping) configuration, matching osmo-bsc.cfg.
+ *
+ * == Physical channel configuration (FDMA) ==
+ *
+ *   +-------+------------------+------------------+------------------+------------------+
+ *   | # / # |      TRX#0       |      TRX#1       |      TRX#2       |      TRX#3       |
+ *   +-------+------------------+------------------+------------------+------------------+
+ *   | ARFCN |       871        |       873        |       875        |       877        |
+ *   +-------+------------------+------------------+------------------+------------------+
+ *
+ * == Physical channel configuration (TDMA) ==
+ *
+ *   +-------+------------------+------------------+------------------+------------------+
+ *   | # / # |      TRX#0       |      TRX#1       |      TRX#2       |      TRX#3       |
+ *   +-------+------------------+------------------+------------------+------------------+
+ *   |  TS0  |   CCCH+SDCCH4    |      TCH/F       |      TCH/H       |       PDCH       |
+ *   +-------+------------------+------------------+------------------+------------------+
+ *   |  TS1  |      TCH/F       |      SDCCH8      |       PDCH       |      TCH/H       |
+ *   +-------+------------------+------------------+------------------+------------------+
+ *   |  TS2  |      TCH/F       |       PDCH       |      SDCCH8      |      TCH/H       |
+ *   +-------+------------------+------------------+------------------+------------------+
+ *   |  TS3  |    TCH/F_PDCH    | TCH/F_TCH/H_PDCH |       PDCH       |      SDCCH8      |
+ *   +-------+------------------+------------------+------------------+------------------+
+ *   |  TS4  | TCH/F_TCH/H_PDCH |    TCH/F_PDCH    |      SDCCH8      |       PDCH       |
+ *   +-------+------------------+------------------+------------------+------------------+
+ *   |  TS5  |      TCH/H       |      SDCCH8      |      TCH/F       |      TCH/F       |
+ *   +-------+------------------+------------------+------------------+------------------+
+ *   |  TS6  |      SDCCH8      |       PDCH       |       PDCH       |       PDCH       |
+ *   +-------+------------------+------------------+------------------+------------------+
+ *   |  TS7  |       PDCH       |       PDCH       |       PDCH       |      SDCCH8      |
+ *   +-------+------------------+------------------+------------------+------------------+
+ */
 BTS_Tests.mp_trx_pars := {
 	{ # TRX0
 		arfcn := 871,

