diff options
Diffstat (limited to 'doc/manuals/mgw')
-rw-r--r-- | doc/manuals/mgw/classic-bsc.msc | 39 | ||||
-rw-r--r-- | doc/manuals/mgw/osmo-bsc-new-mgw-e1.msc | 50 | ||||
-rw-r--r-- | doc/manuals/mgw/osmo-bsc-new-mgw.msc | 71 | ||||
-rw-r--r-- | doc/manuals/mgw/osmo-bsc-old-sccplite.msc | 64 |
4 files changed, 224 insertions, 0 deletions
diff --git a/doc/manuals/mgw/classic-bsc.msc b/doc/manuals/mgw/classic-bsc.msc new file mode 100644 index 000000000..56d288997 --- /dev/null +++ b/doc/manuals/mgw/classic-bsc.msc @@ -0,0 +1,39 @@ +# MO Call on a classic E1 Abis BTS with classic E1 A BSC +# not actually supported by OsmoBSC (nor planned), for refrence only +msc { + hscale=2; + ms [label="MS"], bts [label="E1 BTS"], bsc[label="OsmoBSC"], trau[label="TRAU"], m_sc[label="MSC"]; + + ms box m_sc [label="We assume a SDCCH is already established"]; + ...; + + ms -> m_sc [label="DTAP CC SETUP"]; + ms <- m_sc [label="DTAP CC CALL PROCEEDING"]; + + bsc <- m_sc [label="BSSAP ASSGN REQ"]; + bsc box m_sc [label="E1 TS for PCM specified by CIC"]; + bts <- bsc [label="RSL CHAN ACT"]; + bts -> bsc [label="RSL CHAN ACT ACK"]; + bts box bsc [label="E1 TS + 16k sub-slot configured for given lchan"]; + ms <-> bsc [label="Assignment"]; + bsc -> m_sc [label="BSSAP ASSGN CMPL"]; + + ...; + trau <- m_sc [label="PCM Audio in full E1 slot"]; + bts <- trau [label="A-bis TRAU frames on 16k sub-slot"]; + + ...; + ms <- m_sc [label="DTAP CC CONNECT"]; + ms -> m_sc [label="DTAP CC CONNECT ACK"]; + trau <-> m_sc [label="PCM Audio in full E1 slot"]; + bts <-> trau [label="A-bis TRAU frames on 16k sub-slot"]; + --- [label="Voice Call in Progress"]; + ms <- m_sc [label="DTAP CC DISCONNET"]; + ms <- m_sc [label="DTAP CC RELEASE"]; + ms <- m_sc [label="DTAP CC RELEASE COMPL"]; + ...; + bsc <- m_sc [label="BSSMAP CLEAR CMD"]; + bsc -> m_sc [label="BSSMAP CLEAR COMPL"]; + bsc <- m_sc [label="SCCP RLSD"]; + bsc -> m_sc [label="SCCP RLC"]; +} diff --git a/doc/manuals/mgw/osmo-bsc-new-mgw-e1.msc b/doc/manuals/mgw/osmo-bsc-new-mgw-e1.msc new file mode 100644 index 000000000..04b114fff --- /dev/null +++ b/doc/manuals/mgw/osmo-bsc-new-mgw-e1.msc @@ -0,0 +1,50 @@ +# MO-Call with E1 BTS + OsmoBSC with true 3GPP AoIP (planned +# osmo-bsc_mgcp has to be extended to true MGW functionality! +msc { + hscale=2; + ms [label="MS"], bts [label="E1 BTS"], bsc[label="OsmoBSC"], mgcp[label="osmo-bsc_mgcp"], m_sc[label="MSC"]; + + ms box m_sc [label="We assume a SDCCH is already established"]; + ...; + + ms -> m_sc [label="DTAP CC SETUP"]; + ms <- m_sc [label="DTAP CC CALL PROCEEDING"]; + + m_sc box m_sc [label="Bind arbitrary local port (4000)"]; + bsc <- m_sc [label="BSSAP ASSGN REQ (3GPP AoIP MSC:4000)"]; + bts <- bsc [label="RSL CHAN ACT"]; + bts -> bsc [label="RSL CHAN ACT ACK"]; + ms <-> bsc [label="Assignment"]; + ...; + + mgcp <- bsc [label="MGCP CRCX ts1/ss2@mgw (MSC:4000)"]; + mgcp box mgcp [label="Bind to MGW-local RTP Port (3000)\nConnect to MSC:4000"]; + mgcp -> bsc [label="MGCP CRCX ts1/ss2@mgw OK (MGW:3000)"]; + ...; + + bsc -> m_sc [label="BSSAP ASSGN CMPL (3GPP AoIP MGW:3000)"]; + m_sc box m_sc [label="Connect remote RTP to MGW addr from ASSGN CMPL"]; + ...; + + mgcp <=> m_sc [label="RTP Audio MGW:3000 MSC:4000"]; + bts <=> mgcp [label="TRAU Frame Audio (E1 TS1 SS2)"]; + ms <=> bts [label="Um Audio (bidirectional)"]; + ms <-> m_sc [label="DTAP CC ALERTING"]; + ...; + + ms <- m_sc [label="DTAP CC CONNECT"]; + ms -> m_sc [label="DTAP CC CONNECT ACK"]; + --- [label="Voice Call in Progress"]; + ms <- m_sc [label="DTAP CC DISCONNET"]; + ms <- m_sc [label="DTAP CC RELEASE"]; + ms <- m_sc [label="DTAP CC RELEASE COMPL"]; + ...; + bsc <- m_sc [label="BSSMAP CLEAR CMD"]; + bsc -> m_sc [label="BSSMAP CLEAR COMPL"]; + bsc <- m_sc [label="SCCP RLSD"]; + bsc -> m_sc [label="SCCP RLC"]; + ...; + mgcp <- bsc [label="MGCP DLCX ts1/ss2@mgw"]; + mgcp box mgcp [label="Release MSC-facing local RTP port (3000)"]; + mgcp -> bsc [label="MGCP DLCX ts1/ss2@mgw OK"]; +} diff --git a/doc/manuals/mgw/osmo-bsc-new-mgw.msc b/doc/manuals/mgw/osmo-bsc-new-mgw.msc new file mode 100644 index 000000000..e618bb721 --- /dev/null +++ b/doc/manuals/mgw/osmo-bsc-new-mgw.msc @@ -0,0 +1,71 @@ +# MO-Call with OsmoBTS + OsmoBSC with true 3GPP AoIP (planned) +msc { + hscale=2; + ms [label="MS"], bts [label="OsmoBTS"], bsc[label="OsmoBSC"], mgcp[label="osmo-bsc_mgcp"], m_sc[label="MSC"]; + + ms box m_sc [label="We assume a SDCCH is already established"]; + ...; + + ms -> m_sc [label="DTAP CC SETUP"]; + ms <- m_sc [label="DTAP CC CALL PROCEEDING"]; + + m_sc box m_sc [label="Bind arbitrary local port (4000)"]; + bsc <- m_sc [label="BSSAP ASSGN REQ (3GPP AoIP MSC:4000)"]; + bts <- bsc [label="RSL CHAN ACT"]; + bts -> bsc [label="RSL CHAN ACT ACK"]; + ms <-> bsc [label="Assignment"]; + ...; + + # connect BTS RTP with BSC-MGW RTP + bts <- bsc [label="IPA CRCX"]; + bts box bts [label="Bind to BTS-local RTP Port (1000)"]; + bts -> bsc [label="IPA CRCX ACK (BTS:1000)"]; + bsc -> mgcp [label="MGCP CRCX rtpbridge/2@mgw (BTS:1000)"]; + mgcp box mgcp [label="Bind to MGW-local RTP Port (2000)\nConnect to BTS:1000"]; + bsc <- mgcp [label="MGCP CRCX rtpbridge/2@mgw OK (MGW:2000)"]; + bts <- bsc [label="IPA MDCX (MGW:2000)"]; + bts box bts [label="Connect RTP socket to remote (MGW) RTP Port"]; + bts -> bsc [label="IPA MDCX ACK"]; + #bsc -> mgcp [label="MGCP MDCX rtpbridge/2@mgw (optional)"]; + #bsc <- mgcp [label="MGCP MDCX rtpbridge/2@mgw OK (optional)"]; + ...; + + mgcp <- bsc [label="MGCP CRCX rtpbridge/2@mgw (MSC:4000)"]; + mgcp box mgcp [label="Bind to MGW-local RTP Port (3000)\nConnect to MSC:4000"]; + mgcp -> bsc [label="MGCP CRCX rtpbridge/2@mgw OK (MGW:3000)"]; + ...; + + bsc -> m_sc [label="BSSAP ASSGN CMPL (3GPP AoIP MGW:3000)"]; + m_sc box m_sc [label="Connect remote RTP to MGW addr from ASSGN CMPL"]; + ...; + + mgcp <=> m_sc [label="RTP Audio MGW:3000 MSC:4000"]; + bts <=> mgcp [label="RTP Audio BTS:1000 MGW:2000"]; + ms <=> bts [label="Um Audio (bidirectional)"]; + ms <-> m_sc [label="DTAP CC ALERTING"]; + ...; + + ms <- m_sc [label="DTAP CC CONNECT"]; + ms -> m_sc [label="DTAP CC CONNECT ACK"]; + --- [label="Voice Call in Progress"]; + ms <- m_sc [label="DTAP CC DISCONNET"]; + ms <- m_sc [label="DTAP CC RELEASE"]; + ms <- m_sc [label="DTAP CC RELEASE COMPL"]; + ...; + bsc <- m_sc [label="BSSMAP CLEAR CMD"]; + bsc -> m_sc [label="BSSMAP CLEAR COMPL"]; + bsc <- m_sc [label="SCCP RLSD"]; + bsc -> m_sc [label="SCCP RLC"]; + ...; + mgcp <- bsc [label="MGCP DLCX rtpbridge/2@mgw"]; + mgcp box mgcp [label="Release MSC-facing local RTP port (3000)"]; + mgcp -> bsc [label="MGCP DLCX rtpbridge/2@mgw OK"]; + + mgcp <- bsc [label="MGCP DLCX rtpbridge/2@mgw"]; + mgcp box mgcp [label="Release BTS-facing local RTP port (2000)"]; + mgcp -> bsc [label="MGCP DLCX rtpbridge/2@mgw OK"]; + + bts <- bsc [label="IPA DLCX"]; + bts box bts [label="Release BTS-local RTP port (1000)"]; + bts -> bsc [label="IPA DLCX OK"]; +} diff --git a/doc/manuals/mgw/osmo-bsc-old-sccplite.msc b/doc/manuals/mgw/osmo-bsc-old-sccplite.msc new file mode 100644 index 000000000..067721c46 --- /dev/null +++ b/doc/manuals/mgw/osmo-bsc-old-sccplite.msc @@ -0,0 +1,64 @@ +# MO-Call with OsmoBTS + OsmoBSC using A/IP with IPA/SCCPlite +# Supported since 2010 using osmo-bsc + osmo-bsc_nat +msc { + hscale=2; + ms [label="MS"], bts [label="OsmoBTS"], bsc[label="OsmoBSC"], mgcp[label="osmo-bsc_mgcp"], m_sc[label="MSC"]; + + ms box m_sc [label="We assume a SDCCH is already established"]; + ...; + + ms -> m_sc [label="DTAP CC SETUP"]; + ms <- m_sc [label="DTAP CC CALL PROCEEDING"]; + + bsc <- m_sc [label="BSSAP ASSGN REQ"]; + bts <- bsc [label="RSL CHAN ACT"]; + bts -> bsc [label="RSL CHAN ACT ACK"]; + ms <-> bsc [label="Assignment"]; + bsc -> m_sc [label="BSSAP ASSGN CMPL"]; + + ...; + bts <- bsc [label="IPA CRCX"]; + bts box bts [label="Bind to BSC-local RTP Port"]; + bts -> bsc [label="IPA CRCX ACK"]; + bts <- bsc [label="IPA MDCX"]; + bts box bts [label="Connect RTP socket to remote (bsc_mgcp) RTP Port"]; + bts -> bsc [label="IPA MDCX ACK"]; + + mgcp <- m_sc [label="MGCP CRCX 1@mgw"]; + mgcp box mgcp [label="Bind to BTS-local RTP Port"]; + mgcp -> m_sc [label="MGCP CRCX 1@mgw OK"]; + mgcp <- m_sc [label="MGCP MDCX 1@mgw (recvonly) "]; + mgcp box mgcp [label="Connect RTP socket to remote (MSC) RTP Port"]; + mgcp -> m_sc [label="MGCP MDCX 1@mgw OK"]; + mgcp <= m_sc [label="RTP Audio"]; + bts <= mgcp [label="RTP Audio"]; + ms <= bts [label="Um Audio (unidirectional)"]; + ms <- m_sc [label="DTAP CC ALERTING"]; + + ...; + mgcp <- m_sc [label="MGCP MDCX (sndrecv) "]; + mgcp box mgcp [label="Switch to bi-directional audio"]; + mgcp -> m_sc [label="MGCP MDCX OK"]; + mgcp <=> m_sc [label="RTP Audio"]; + bts <=> mgcp [label="RTP Audio"]; + ms <=> bts [label="Um Audio (bidirectional)"]; + ...; + ms <- m_sc [label="DTAP CC CONNECT"]; + ms -> m_sc [label="DTAP CC CONNECT ACK"]; + mgcp <- m_sc [label="MGCP MDCX 1@mgw (sndrecv) "]; + mgcp box mgcp [label="Why?"]; + mgcp -> m_sc [label="MGCP MDCX 1@mgw OK"]; + --- [label="Voice Call in Progress"]; + ms <- m_sc [label="DTAP CC DISCONNET"]; + ms <- m_sc [label="DTAP CC RELEASE"]; + ms <- m_sc [label="DTAP CC RELEASE COMPL"]; + ...; + bsc <- m_sc [label="BSSMAP CLEAR CMD"]; + bsc -> m_sc [label="BSSMAP CLEAR COMPL"]; + bsc <- m_sc [label="SCCP RLSD"]; + bsc -> m_sc [label="SCCP RLC"]; + ...; + mgcp <- m_sc [label="MGCP DLCX 1@mgw"]; + mgcp box mgcp [label="Release local RTP port"]; + mgcp -> m_sc [label="MGCP DLCX 1@mgw OK"]; +} |