57 lines
1.8 KiB
Plaintext
57 lines
1.8 KiB
Plaintext
msc {
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hscale = 2;
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ms [label="MS"], bts [label="BTS"], bsc [label="BSC"], Msc [label="MSC"], mgw [label="MGW"];
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ms => bts [label="L1 RACH burst"];
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bts => bsc [label="RSL CHAN RQD"];
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bts <= bsc [label="RSL CHAN ACT"];
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bts => bsc [label="RSL CHAN ACT ACK"];
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bts <= bsc [label="RSL IMM ASS CMD (RR IMM ASS)"];
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ms <= bts [label="RR IMMEDIATE ASSIGN"];
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ms => bts [label="LAPDm SABM (CM SERVICE REQ)"];
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ms <= bts [label="LAPDm FIXME"];
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bts => bsc [label="RSL ESTABLISH IND (CM SERVICE REQ)"];
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bsc => Msc [label="CR (BSSAP COMPLETE L3 (CM SERVICE REQ))"];
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...;
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ms box Msc [label="MM Common Procedures (INFO, ID, AUTH, CIPH)"];
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...;
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ms => bts [label="CC SETUP"];
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bts => bsc [label="RSL DATA IND (CC SETUP)"];
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bsc => Msc [label="DT1 (DTAP (CC SETUP))"];
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...;
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ms box Msc [label="CC Signalling"];
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...;
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bsc <= Msc [label="BSSAP ASSIGNMENT CMD (TCH)"];
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bts <= bsc [label="RSL IPA CRCX", id="1"];
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bts => bsc [label="RSL IPA CRCX ACK (IP/Port @ BTS)"];
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bsc => Msc [label="FIXME"];
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Msc => mgw [label="FIXME"];
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bts <- mgw [label="Start RTP + RTCP UDP Flows"];
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bts <= bsc [label="RSL DATA REQ (RR CHAN MOD MODIFY)"];
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ms <= bts [label="RR CHAN MOD MODIFY"];
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ms => bts [label="RR CHAN MOD MODIFY ACK"];
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bts => bsc [label="RSL DATA IND (RR CHAN MOD MODIFY ACK)"];
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|||;
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bts <= bsc [label="RSL MODE MODIFY REQ"];
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bts => bsc [label="RSL MODE MODIFY ACK"];
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Msc <= mgw [label="FIXME"];
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bsc <= Msc [label="FIXME"];
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bts <= bsc [label="RSL IPA MDCX (IP/Port @ MGW)", id="2"];
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bts => bsc [label="RSL IPA MDCX ACK"];
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bts -> mgw [label="Start RTP + RTCP UDP Flows"];
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ms box mgw [label="Active Voice Call"];
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bts => bsc [label="RSL MEAS RES"];
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...;
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bts <= bsc [label="RSL IPA DLCX"];
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bts => bsc [label="RSL IPA DLCX ACK"];
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bts -x mgw [label="Stop RTP + RTCP UDP Flows"];
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bts <= bsc [label="RSL RF CHAN REL"];
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bts => bsc [label="RSL RF CHAN REL ACK"];
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}
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