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-rw-r--r--2019/osmodevcon2019-cell_broadcast/smscb-2g.msc23
1 files changed, 23 insertions, 0 deletions
diff --git a/2019/osmodevcon2019-cell_broadcast/smscb-2g.msc b/2019/osmodevcon2019-cell_broadcast/smscb-2g.msc
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index 0000000..c15175f
--- /dev/null
+++ b/2019/osmodevcon2019-cell_broadcast/smscb-2g.msc
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+msc {
+ hscale="2";
+ ms [label="MS"], bts [label="BTS"], bsc [label="BSC"], cbc [label="CBC"], cbe [label="CBE"];
+
+ cbc <= cbe [label="New message (duration, geographic scope)"];
+
+ cbc box cbc [label="Determine list of BSCs in scope"];
+ bsc <= cbc [label="CBSP WRITE-REPLACE"];
+ bsc => cbc [label="CBSP WRITE-REPLACE ACK"];
+
+ bsc box bsc [label="Determine list of BTSs in scope"];
+ bsc box bsc [label="Schedule with any other SMSCB for give BTSs"];
+ bts <= bsc [label="RSL SMSCB COMMAND"];
+
+ ms <= bts [label="CBCH SMSCB block (1/4)"];
+ ms <= bts [label="CBCH SMSCB block (2/4)"];
+ ms <= bts [label="CBCH SMSCB block (3/4)"];
+ ms <= bts [label="CBCH SMSCB block (4/4)"];
+ bts box bts [label="BTS doesn't retransmit unless type=default"];
+
+ bts => bsc [label="RSL CBCH LOAD IND"];
+ bsc box bsc [label="flow control; scheduling"];
+}
personal git repositories of Harald Welte. Your mileage may vary