38 lines
1.5 KiB
Plaintext
38 lines
1.5 KiB
Plaintext
msc {
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hscale=2;
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ms [label="MS via BTS"], bsc_lchan[label="BSC lchan FSM"], bsc_gscon[label="BSC conn FSM"],
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msc_[label="MSC"];
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ms note msc_ [label="inter-BSC Handover to another BSS"];
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bsc_gscon abox bsc_gscon [label="ST_ACTIVE"];
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bsc_gscon box bsc_gscon [label="bsc_handover_start(): init conn->ho"];
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bsc_gscon -> bsc_gscon [label="GSCON_EV_HO_START (inter-BSC MO)"];
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bsc_gscon abox bsc_gscon [label="ST_HANDOVER_MO_\nWAIT_HO_CMD\nT7"];
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bsc_gscon => msc_ [label="BSSMAP Handover Required"];
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...;
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--- [label="On Timeout"];
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ms note bsc_gscon [label="MS happily continues on the old lchan."];
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bsc_gscon abox bsc_gscon [label="ST_ACTIVE"];
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bsc_gscon box bsc_gscon [label="handover_end(fail)"];
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--- [label="END: 'On Timeout'"];
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...;
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bsc_gscon <= msc_ [label="BSSMAP Handover Command"];
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bsc_gscon abox bsc_gscon [label="ST_HANDOVER_MO_\nWAIT_CLEAR_CMD\nT8"];
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ms <= bsc_gscon [label="RR Handover Command"];
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...;
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--- [label="On Timeout"];
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ms note bsc_gscon [label="MS happily continues on the old lchan."];
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bsc_gscon abox bsc_gscon [label="ST_ACTIVE"];
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bsc_gscon box bsc_gscon [label="handover_end(fail)"];
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--- [label="END: 'On Timeout'"];
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...;
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msc_ note msc_ [label="Remote BSS reported Handover Complete to the MSC, this connection has been
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superseded."];
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bsc_gscon <= msc_ [label="BSSMAP Clear Command"];
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bsc_gscon abox bsc_gscon [label="ST_CLEARING"];
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bsc_gscon => msc_ [label="BSSMAP Clear Complete"];
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bsc_lchan <- bsc_gscon [label="LCHAN_EV_RELEASE"];
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ms <=> bsc_lchan [label="release procedure (async)"];
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}
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