【資料成文時(shí)間】：2006d
【語言】：english
【頁數(shù)】：40
【何人（公司）所著】：Ericsson
【文件格式】：pdf
【文件原名】： MSC in Pool in MSC.pdf (768 KB)
【摘要或目錄】：
MSC in Pool in MSC
Copyright
© Ericsson GmbH 2006 – All Rights Reserved
Contents
1 Introduction..........................................................................................3
2 Glossary ..............................................................................................3
2.1 Concepts .............................................................................................3
2.1.1 Anchor MSC ........................................................................................3
2.1.2 Enhanced Co-operating VLR Functionality .........................................4
2.1.3 Global CN-Id........................................................................................4
2.1.4 Gs-Interface.........................................................................................4
2.1.5 MSC Pool ............................................................................................4
2.1.6 Media Gateway ...................................................................................5
2.1.7 Neighboring MSC Group .....................................................................5
2.1.8 NRI ......................................................................................................6
2.1.9 Non-anchor MSC.................................................................................7
2.1.10 Overlapping Pool Area ........................................................................7
2.1.11 Pool Area.............................................................................................8
2.1.12 Proxy MSC ..........................................................................................9
2.1.13 Third MSC ...........................................................................................9
2.1.14 TMSI....................................................................................................9
2.1.15 Subsequent Handover/SRNS Relocation..........................................10
2.1.16 Round Robin Algorithm .....................................................................10
2.2 Abbreviations.....................................................................................10
3 Capabilities........................................................................................11
3.1 Advantages .......................................................................................11
3.2 Limitations .........................................................................................12
3.3 Failure Cases ....................................................................................12
3.4 Prerequisites .....................................................................................12
4 Technical Description ........................................................................13
4.1 General..............................................................................................13
4.2 Functions Needed in the MSC in the Pool.........................................15
4.2.1 TMSI Allocation/NRI ..........................................................................15
4.2.2 CN-Id .................................................................................................17
4.2.3 Subsequent Handover/SRNS Relocation to Third MSC, Anchor
MSC ..................................................................................................18
4.3 Functions for Enhanced Access from Outer Nodes to the Pool ........19
4.3.1 Cooperating VLR...............................................................................19
4.3.2 Handover/SRNS Relocation..............................................................23
4.4 Functions Indirectly Affected due to MSC in Pool .............................24
5 Network Scenario Example ...............................................................24
6 Engineering Guidelines .....................................................................26
6.1 Building a Pool Network ....................................................................26
Open
USER DESCRIPTION 2 (40)
Prepared (also subject responsible if other) No.
IXG/D/PD AIKM 7/1553-APR 101 49/3 Uen
Approved Checked Date Rev Reference
IXG/D/SY (D. Tsatsoulis) PC-MAGAM 2006-04-11 C
6.2 Use Cases.........................................................................................29
6.2.1 Use Case 1: Add a New NRI in an MSC ...........................................29
6.2.2 Use Case 2: Remove an NRI from an MSC......................................30
6.2.3 Use Case 3: NRI Reassignment........................................................31
6.2.4 Use Case 4: Take an MSC Out of Service........................................31
6.2.5 Use Case 5: Take a Proxy MSC Out of Service................................33
6.2.6 Use Case 6: Add a New MSC to the Pool.........................................33
6.2.7 Use Case 7: Add a New RAN (BSC/RNC) Node to the Pool ............33
7 Parameters........................................................................................33
7.1 Main Controlling Parameters.............................................................33
7.2 Parameters for Special Adjustments .................................................34
7.3 Value Ranges and Default Values ....................................................35
7.3.1 ADMHOMSCPOOL...........................................................................35
7.3.2 MSCREQNUM ..................................................................................35
7.3.3 OWNCNID.........................................................................................35
7.3.4 PAGREP1LA.....................................................................................36
7.3.5 PAGREPCT1LA ................................................................................36
7.3.6 PAGREPGLOB .................................................................................37
7.3.7 TIMNRICHGM...................................................................................38
7.3.8 TMSIPAR ..........................................................................................38
8 References ........................................................................................38