Content for TS 23.334 Word version: 19.0.0

1… 4… 5… 5.11… 5.12… 5.14… 5.18… 5.19… 5.20… 5.21… 6… 6.1.6… 6.1.11… 6.2… 6.2.10… 6.2.10.3.1.2 6.2.10.3.2 6.2.10.4… 6.2.10.4.3… 6.2.10.5 6.2.10.6… 6.2.10A… 6.2.13… 6.2.14… 6.2.14.3 6.2.14.4… 6.2.15… 6.2.17… 6.2.17.3… 6.2.17.5… 6.2.18… 6.2.20 6.2.21… 6.2.22… 6.2.22.3… 6.2.22.3.2 6.2.23 6.2.24 6.2.25… 7 8… 8.3 8.4 8.5… 8.23…

6.2.25 Delay Budget Information (DBI) 6.2.26 RTCP RR packets trigger
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6.2.25 Delay Budget Information (DBI) |R16| p. 184

Figure 6.2.25.1 shows a message sequence chart example for indicating DBI.

Copy of original 3GPP image for 3GPP TS 23.334, Fig. 6.2.25.1: Procedure to indicate DBI

Figure 6.2.25.1: Procedure to indicate DBI
(⇒ copy of original 3GPP image)

This procedure is identical to that of clause 6.2.1 apart from the IMS-ALG optionally requesting the IMS-AGW to transparently forward the RTCP feedback DBI packets (as defined in TS 26.114) between incoming and outgoing network.

6.2.26 RTCP RR packets trigger |R19| p. 185

The PCRF/PCF bypass procedure defined in clause 8 of TS 23.380 is an optional IMS restoration procedure. The following RTCP RR packets trigger procedure is established to support the PCF bypass procedure.

Figure 6.2.26.1 shows the message sequence chart example for the RTCP RR packets trigger.

Copy of original 3GPP image for 3GPP TS 23.334, Fig. 6.2.26.1: Procedure to triggering RTCP RR packets

Figure 6.2.26.1: Procedure to triggering RTCP RR packets
(⇒ copy of original 3GPP image)

UE A initiates an initial INVITE request to the IMS-ALG (P-CSCF) to establish an IMS session. The P-CSCF routes the INVITE request to the I-/S-CSCF. Then the I-/S-CSCF returns a 183 response to the P-CSCF.

When the P-CSCF detects that all the PCRF/PCF instances fail, it sends an H.248 MOD request to IMS-AGW. The H.248 MOD request IMS-AGW to send the RTCP RR Package to termination T1. Once IMS-AGW receives the request, it starts to send RTCP RR Packets to termination T1 and return H.248 MOD response to P-CSCF.