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TS 23.009
Handover Procedures

3GPP‑Page   ETSI‑search   eToC↓   LoFT↓   fToC →   CONTENT →
V19.0.0 (PDF)  2025/09  301 p.
V18.0.0  2024/03  301 p.
V17.0.0  2022/03  301 p.
V16.0.0  2020/06  302 p.
V15.0.0  2018/06  301 p.
V14.0.0  2017/03  302 p.
V13.0.0  2015/12  303 p.
V12.0.0  2014/09  303 p.
V11.2.0  2012/12  303 p.
V10.2.0  2012/12  299 p.
V9.4.0  2012/12  299 p.
V8.3.0  2012/12  295 p.
V7.1.1  2009/01  289 p.
V6.5.0  2008/12  288 p.
V5.12.0  2008/12  287 p.
V4.9.0  2004/01  270 p.
V3.14.0  2003/06  269 p.
GSM Rel-98 v7.0.0  1999/06  78 p.
GSM Rel-97 v6.0.0  1998/10  77 p.
GSM Rel-96 v5.1.0  1997/06  81 p.
GSM Phase-2 v4.6.0  1996/02  81 p.
GSM Phase-1 v3.2.1  1992/02  40 p.
Rapporteur:
Mr. Monrad, Atle
Ericsson LM

essential Table of Contents for  TS 23.009  Word version:  19.0.0

each title, in the "available" or "not available yet" area, links to the equivalent title in the CONTENT
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List of Figures and Tables

Figure 1Functional composition of the controlling MSC (MSC-A) for supporting handover
Table 1States of the handover device
Figure 2Connections in the handover device (Unit 5)
Figure 3Functional composition of MSC-B for supporting handover
Figure 4Functional composition of the controlling 3G_MSC (3G_MSC-A) for supporting handover/relocation
Table 2States of the handover/relocation device
Figure 5Connections in the handover/relocation device (Unit 5)
Figure 6Functional composition of 3G_MSC-B for supporting handover/relocation
Figure 7Basic External Intra-MSC Handover Procedure
Figure 8Basic Intra-3G_MSC Handover from UMTS to GSM Procedure
Figure 9Basic External Intra-3G_MSC GSM to UMTS Handover Procedure
Figure 10Basic intra-3G_MSC SRNS Relocation Procedure
Figure 11Basic intra-3G_MSC SRNS Relocation Procedure combined with hard change
Figure 11aBasic intra-3G_MSC Enhanced SRNS Relocation Procedure
Figure 11bBasic intra-3G_MSC Enhanced SRNS Relocation Procedure combined with hard change
Figure 6.3.2.1BSS-Initiated Internal Handover Execution
Figure 12Basic Handover Procedure requiring a circuit connection
Figure 13Basic Handover Procedure without circuit connection
Figure 14Subsequent handover procedure i):successful handover from MSC-B to MSC-A using a circuit connection
Figure 15Subsequent handover procedure ii): Successful handover from MSC-B to MSC-B'requiring a circuit connection
Figure 16Subsequent handover procedure i): Successful handover from MSC-B to MSC-A not requiring a circuit connection
Figure 17Subsequent handover procedure ii): Successful handover from MSC-B to MSC-B' without circuit connection
Figure 18Basic UMTS to GSM Handover Procedure requiring a circuit connection
Figure 19Basic UMTS to GSM Handover Procedure without circuit connection
Figure 20Subsequent UMTS to GSM handover procedure i): successful UMTS to GSM handover from 3G_MSC-B to MSC-A using a circuit connection
Figure 21Subsequent handover procedure ii): Successful UMTS to GSM handover from 3G_MSC-B to MSC-B' requiring a circuit connection
Figure 22Subsequent UMTS to GSM handover procedure i): Successful UMTS to GSM handover from 3G_MSC-B to MSC-A not requiring a circuit connection
Figure 23Subsequent UMTS to GSM handover procedure ii): Successful UMTS to GSM handover from 3G_MSC-B to MSC-B' without circuit connection
Figure 24Basic GSM to UMTS Handover Procedure requiring a circuit connection
Figure 25Basic GSM to UMTS Handover Procedure without circuit connection
Figure 26Subsequent GSM to UMTS handover procedure i): successful handover from MSC-B to 3G_MSC-A using a circuit connection
Figure 27Subsequent GSM to UMTS handover procedure ii): Successful handover from MSC-B to 3G_MSC-B' requiring a circuit connection
Figure 28Subsequent GSM to UMTS handover procedure i): Successful handover from MSC-B to 3G_MSC-A not requiring a circuit connection
Figure 29Subsequent GSM to UMTS handover procedure ii): Successful handover from MSC-B to 3G_MSC-B' without circuit connection
Figure 30Basic SRNS Relocation Procedure requiring a circuit connection
Figure 31Basic SRNS relocation procedure without a circuit connection
Figure 32Subsequent relocation procedure i) successful relocation from 3G_MSC-B to 3G_MSC-A using a circuit connection
Figure 33Subsequent relocation procedure ii) Successful SRNS relocation from 3G_MSC-B to 3G_MSC-B' requiring a circuit connection
Figure 34Subsequent relocation procedure i) successful relocation from 3G_MSC-B to 3G_MSC-B not requiring a circuit connection
Figure 35Subsequent relocation procedure ii) Successful SRNS relocation from 3G_MSC-B to 3G_MSC-B' not requiring a circuit connection
Figure 35aCollision between a subsequent Intra-3G_MSC-B handover/relocation and a security mode control procedure i): successful handover/relocation
Figure 35bCollision between a subsequent Intra-3G_MSC-B handover/relocation and a security mode control procedure ii): unsuccessful handover/relocation
Figure 35baCollision between a subsequent Inter-MSC handover/relocation and a security mode control procedure i): successful handover/relocation
Figure 35bbCollision between a subsequent Intra-3G_MSC-B handover/relocation and a security mode control procedure ii): unsuccessful handover/relocation
Figure 35cCollision between a subsequent Intra-3G_MSC-B handover/relocation and a RAB assignment procedure i): successful handover/relocation
Figure 35dCollision between a subsequent Intra-3G_MSC-B handover/relocation and a RAB assignment procedure ii): unsuccessful handover/relocation
Figure 35daCollision between a subsequent Inter-MSC handover/relocation and a RAB assignment procedure i): successful handover/relocation
Figure 35dbCollision between a subsequent Inter-MSC handover/relocation and a RAB assignment procedure ii): unsuccessful handover/relocation
Figure 35eInteraction between a RAB assignment procedure and a subsequent Intra-3G_MSC-B directed retry handover i): successful directed retry handover
Figure 35fInteraction between a RAB assignment procedure and a subsequent Inter-MSC directed retry handover i): successful directed retry handover
Figure 36Successful circuit-switched call establishment after a Basic Handover without circuit connection
Figure 37Successful circuit-switched call establishment after a Basic UMTS to GSM Handover without circuit connection
Figure 38Successful circuit-switched call establishment after a Basic GSM to UMTS Handover without circuit connection
Figure 39Successful circuit-switched call establishment after a Basic Relocation without circuit connection
Figure 40Example of a Directed Retry Intra-MSC Handover Procedure
Figure 40aExample of a Directed Retry Intra-3G_MSC GSM to UMTS Handover Procedure
Figure 40bExample of a Directed Retry Intra-3G_MSC UMTS to GSM Handover Procedure
Figure 41Handover control procedure in MSC-A (26 Sheets)
Figure 42Handover control procedure in MSC-B (18 Sheets)
Figure 43Handover control procedure in 3G_MSC-A (78 Sheets)
Figure 44Handover control procedure in 3G_MSC-B (54 Sheets)

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