| msc { |
| hscale="2"; |
| |
| ms[label="MS/BTS"],bsc[label="BSC"],smlc[label="SMLC"],__msc[label="MSC"]; |
| |
| ||| [label="Location Services (LCS): Perform Location Request using TA"]; |
| |
| |||; |
| --- [label="MS in DEDICATED MODE (currently active)"]; |
| |
| ms =>> bsc [label="earlier Measurement Report provides Timing Advance"]; |
| |
| bsc <<= __msc [label="PERFORM LOCATION REQUEST\n3GPP TS 48.008 3.2.1.71"]; |
| |
| bsc =>> smlc [label="BSSMAP-LE PERFORM LOCATION REQUEST\n3GPP TS 49.031 9.1\nwith BSSLAP APDU = TA Layer3\n3GPP TS 48.071 4.2.8"]; |
| |
| smlc rbox smlc [label="SMLC uses TA included in TA Layer3"]; |
| |
| bsc <<= smlc [label="BSSMAP-LE PERFORM LOCATION RESPONSE\n3GPP TS 49.031 9.2"]; |
| |
| bsc =>> __msc [label="PERFORM LOCATION RESPONSE\n3GPP TS 48.008 3.2.1.72"]; |
| |
| ...; |
| ...; |
| --- [label="MS in IDLE MODE (not connected)"]; |
| |
| bsc <<= __msc [label="PERFORM LOCATION REQUEST\n3GPP TS 48.008 3.2.1.71"]; |
| |
| bsc =>> smlc [label="BSSMAP-LE PERFORM LOCATION REQUEST\n3GPP TS 49.031 9.1"]; |
| |
| smlc rbox smlc [label="SMLC needs TA information,\nasks BSC via BSSLAP"]; |
| |
| bsc <<= smlc [label="BSSMAP-LE CONNECTION ORIENTED INFORMATION\n3GPP TS 49.031 9.12\nwith BSSLAP APDU = TA Request\n3GPP TS 48.071 4.2.1"]; |
| |
| |
| ms <<= bsc [label="RR Paging Request\n3GPP TS 48.018 9.1.22-24"]; |
| |
| ms =>> bsc [label="RSL CHANNEL REQUIRED\n3GPP TS 48.058 8.5.3\nincludes Access Delay (9.3.17) == Timing Advance"]; |
| |
| ms =>> bsc [label="RR Paging Response\n3GPP TS 48.018 9.1.25"]; |
| |
| ms <<= bsc [label="RF CHANNEL RELEASE\n3GPP TS 48.058 8.4.14"]; |
| |
| bsc =>> smlc [label="BSSMAP-LE CONNECTION ORIENTED INFORMATION\n3GPP TS 49.031 9.12\nwith BSSLAP APDU = TA Response\n3GPP TS 48.071 4.2.2"]; |
| |
| bsc <<= smlc [label="BSSMAP-LE PERFORM LOCATION RESPONSE\n3GPP TS 49.031 9.2"]; |
| |
| bsc =>> __msc [label="PERFORM LOCATION RESPONSE\n3GPP TS 48.008 3.2.1.72"]; |
| } |