| Neels Hofmeyr | 3b5de1b | 2018-06-16 16:08:55 +0200 | [diff] [blame] | 1 | digraph G { |
| 2 | rankdir=TB |
| 3 | labelloc=t; label="Handover FSM: Inter-BSC Incoming" |
| 4 | |
| 5 | old_bss [label="old BSS",shape=box3d] |
| 6 | msc [label="MSC",shape=box3d] |
| 7 | ho_in [label="inter-BSC HO Incoming",shape=box] |
| 8 | gscon [label="gscon FSM",shape=box3d] |
| 9 | lchan [label="lchan FSM",shape=box3d] |
| 10 | msc2 [label="msc",shape=box3d] |
| 11 | old_bsc2 [label="old BSC",shape=box3d] |
| 12 | old_lchan [label="old lchan",shape=box3d] |
| 13 | terminate [shape=octagon] |
| 14 | |
| 15 | old_bss -> msc [label="BSSMAP Handover Required",style=dotted] |
| 16 | msc -> ho_in [label="BSSMAP Handover Request",style=dotted] |
| 17 | ho_in -> gscon [label="GSCON_EV_A_CONN_IND\nBSSMAP Handover Request",style=dotted] |
| 18 | gscon -> HO_ST_WAIT_LCHAN_ACTIVE [label="handover_start_inter_bsc_in()",style=dotted] |
| 19 | HO_ST_WAIT_LCHAN_ACTIVE -> lchan [label="lchan_activate()\nFOR_HANDOVER",style=dotted] |
| 20 | lchan -> HO_ST_WAIT_LCHAN_ACTIVE [label="HO_EV_\nLCHAN_ACTIVE,\n_ERROR",style=dotted,constraint=false] |
| 21 | HO_ST_WAIT_LCHAN_ACTIVE -> HO_ST_WAIT_RR_HO_DETECT |
| 22 | |
| 23 | HO_ST_WAIT_RR_HO_DETECT -> msc2 [label="BSSMAP\nHandover\nAccept\nwith\nRR Handover\nCommand",style=dotted] |
| 24 | msc2 -> old_bsc2 -> old_lchan [label="RR Handover\nCommand",style=dotted] |
| 25 | old_lchan -> lchan [label="MS moves",style=dotted,constraint=false] |
| 26 | |
| 27 | lchan -> HO_ST_WAIT_RR_HO_DETECT [label="RR Handover\nDetect",style=dotted] |
| 28 | HO_ST_WAIT_RR_HO_DETECT -> WAIT_RR_HO_COMPLETE |
| 29 | |
| 30 | lchan -> WAIT_RR_HO_COMPLETE [label="RR Handover\nComplete",style=dotted] |
| 31 | WAIT_RR_HO_COMPLETE -> WAIT_LCHAN_ESTABLISHED |
| 32 | lchan -> WAIT_LCHAN_ESTABLISHED [label="HO_EV_LCHAN_\nESTABLISHED",style=dotted] |
| 33 | |
| 34 | WAIT_LCHAN_ESTABLISHED -> terminate [label="non-TCH"] |
| 35 | WAIT_LCHAN_ESTABLISHED -> WAIT_MGW_ENDPOINT_TO_MSC |
| 36 | WAIT_MGW_ENDPOINT_TO_MSC -> terminate [label="handover_end()"] |
| 37 | terminate -> msc2 [label="BSSMAP Handover\nComplete\n/ Failure",style=dotted,constraint=false] |
| 38 | |
| 39 | err [label="on error",shape=box,style=dashed] |
| 40 | err -> terminate [style=dashed] |
| 41 | |
| 42 | } |