Content for TS 23.284 Word version: 17.0.0

1… 4… 4.2… 4.3… 5 6… 6.3… 6.3.2 6.3.3 6.3.4 6.3.5 7… 7.2.4… 7.2.4.2 7.2.4.3 7.2.4.4 7.2.4.5 7.2.4.6 7.3… 7.3.4… 7.3.4.2 7.3.4.3 7.3.4.4 8… 8.2.3 8.3… 8.3.2 8.4… 8.4.1.1.7… 8.4.1.2… 8.4.2… 8.4.2.2… 8.4.5… 8.4.5.6 8.4.5.7 8.4.5.8… 9… 13… 13.4… 13.4.3… 13.4.4… 13.5… 13.6… 13.7… 14… 16… A… A.2…

7.2.4.3 BSS Initiated, Immediate LCLS Break
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7.2.4.3 BSS Initiated, Immediate LCLS Break p. 52

Figure 7.2.4.3.1 shows the message sequence example for the BSS initiated LCLS Break.

Copy of original 3GPP image for 3GPP TS 23.284, Fig. 7.2.4.3.1: BSS initiated, immediate LCLS break

Figure 7.2.4.3.1: BSS initiated, immediate LCLS break
(⇒ copy of original 3GPP image)

Step 1.

The BSS determines that local switching should be disconnected.

Step 2a, b.

The BSS reports the LCLS disconnection by sending the LCLS-Notification message with the LCLS-BSS-Status IE set to "the call is no longer locally switched" to the tMSC server and oMSC server.

Step 3.

The tMSC server sends the LCLS Status Update message with the LCLS-Status IE set to "LCLS Not Connected" to the preceding node.
The oMSC server sends the LCLS Status Update message with the LCLS-Status IE set to "LCLS Not Connected" to the succeeding node.

Step 4a.

The iMSC server transfers the LCLS Status Update message to the oMSC server.