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SGSN Administration Guide, StarOS Release 17 ▄

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CONTENTS

About this Guide .............................................................................................. xix

Conventions Used ...................................................................................................................................xx

Supported Documents and Resources .................................................................................................. xxi

Related Common Documentation ...................................................................................................... xxi

Related Product Documentation ........................................................................................................ xxi

Obtaining Documentation ................................................................................................................... xxi

Contacting Customer Support ............................................................................................................... xxii

Serving GPRS Support Node (SGSN) Overview ............................................ 23

Product Description ................................................................................................................................ 24

Qualified Platforms ............................................................................................................................. 25

Licenses ............................................................................................................................................. 25

Network Deployments and Interfaces .................................................................................................... 26

SGSN and Dual Access SGSN Deployments .................................................................................... 26

SGSN/GGSN Deployments ............................................................................................................... 27

S4-SGSN Deployments...................................................................................................................... 28

SGSN Logical Network Interfaces ...................................................................................................... 29

SGSN Core Functionality ....................................................................................................................... 33

All-IP Network (AIPN) ......................................................................................................................... 33

SS7 Support ....................................................................................................................................... 33

PDP Context Support ......................................................................................................................... 34

Mobility Management ......................................................................................................................... 34

GPRS Attach .................................................................................................................................. 34

GPRS Detach ................................................................................................................................ 35

Paging ............................................................................................................................................ 35

Service Request ............................................................................................................................. 35

Authentication ................................................................................................................................ 36

P-TMSI Reallocation ...................................................................................................................... 36

P-TMSI Signature Reallocation ..................................................................................................... 36

Identity Request ............................................................................................................................. 36

Location Management ........................................................................................................................ 36

Session Management......................................................................................................................... 37

PDP Context Activation .................................................................................................................. 37

PDP Context Modification .............................................................................................................. 38

PDP Context Deactivation ............................................................................................................. 38

PDP Context Preservation ............................................................................................................. 38

Charging ............................................................................................................................................. 38

SGSN in GPRS/UMTS Network .................................................................................................... 38

SGSN in LTE/SAE Network ........................................................................................................... 40

Features and Functionality ..................................................................................................................... 41

3G-2G Location Change Reporting .................................................................................................... 43

Accounting Path Framework, New for 14.0........................................................................................ 43

AAA Changes To Support Location Services (LCS) Feature ............................................................ 44

APN Aliasing ...................................................................................................................................... 44

Default APN ................................................................................................................................... 44

APN Redirection per APN with Lowest Context-ID ............................................................................ 44