TS 23.236 ★
Intra-Domain Connection
of RAN Nodes to Multiple CN Nodes

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V16.0.0 (PDF) 2020/06 43 p.

V15.0.0 2018/06 42 p.

V14.0.0 2016/09 43 p.

V13.0.0 2015/06 42 p.

V12.0.0 2013/06 42 p.

V11.0.0 2012/09 42 p.

V10.3.0 2012/03 41 p.

V9.0.0 2009/12 41 p.

V8.1.0 2009/12 41 p.

V7.0.0 2006/12 39 p.

V6.3.0 2006/03 39 p.

V5.4.0 2005/10 38 p.

Rapporteur:: Mr. Terrill, Stephen Ericsson LM

essential Table of Contents for TS 23.236 Word version: 16.0.0

each title, in the ┃ or ┃ area, links to the equivalent title in the CONTENT

2 References Word‑p. 6

3 Definitions, symbols and abbreviations Word‑p. 7

4 General Description Word‑p. 8

4.1 Iu Flex Technical Requirements Word‑p. 8

4.2 Overview Word‑p. 8

4.3 Pool-Area and Network Resource Identification Word‑p. 10

4.4 NAS Node Selection Function Word‑p. 10

4.5 Load Balancing Word‑p. 11

4.5a Load Re-Distribution |R6| Word‑p. 12

4.6 Mobility Management Word‑p. 13

4.7 Default CN node and Backwards Compatibility Word‑p. 14

4.8 Support of combined mobility management procedures Word‑p. 14

4.9 VGCS/VBS Compatibility Issues Word‑p. 15

4.10 Interactions with E-UTRAN |R8| Word‑p. 15

5 Functional Description Word‑p. 15

5.1 MS Functions Word‑p. 15

5.2 RNC Functions Word‑p. 16

5.3 BSC Functions Word‑p. 16

5.4 MSC Functions Word‑p. 18

5.5 SGSN Functions Word‑p. 19

6 Application Examples Word‑p. 20

6.1 Network configuration example 1 Word‑p. 20

6.2 Network configuration example 2 Word‑p. 20

7 Specific Examples Word‑p. 21

7.1 Building blocks for signalling flows Word‑p. 21

7.2 Signalling flow for Attach (Iu interface mode) Word‑p. 22

7.3 Signalling flows for Service Request (Iu interface mode) Word‑p. 24

7.4 Signalling flow for Routing Area Update (Iu interface mode) Word‑p. 27

7.5 IMSI attach procedure / Location area update with IMSI Word‑p. 30

A Network configuration examples Word‑p. 33

A.1 One city centre surrounded by residential areas Word‑p. 33

A.2 3 Neighbouring large city centres Word‑p. 34

A.3 Support of Dedicated Core Networks |R13| Word‑p. 39

$ Change history Word‑p. 41

TS 23.236 ★ Intra-Domain Connection of RAN Nodes to Multiple CN Nodes

essential Table of Contents for TS 23.236 Word version: 16.0.0

TS 23.236 ★
Intra-Domain Connection
of RAN Nodes to Multiple CN Nodes