CoreCSDesignrequirements

8/8/2019 CoreCSDesignrequirements

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Lucent Technologies ProprietaryUse pursuant to company instruction

NDER - Core CS Design Requirements

Mohamamad Hamid


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October 4, 2010Lucent Technologies Proprietary

Use pursuant to company instruction 2

Over View of CS Requirements

Network architecture details

Call Flows

Requirements for Mobile to Land call

Requirements for Land to Mobile call

LNP Query Requirements

Hand Over requirements (IRAT)

Supplementary services Requirements

Emergency call setup Requirements

IP assignments for LSS, MGWs, LMRS, CCDU, CDDU, etc will be discussed in IP

presentation.

NDER tabs for Core CS requirements.


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Network Architecture Requirements: Contd

Understand Topology, LSS architecture connectivity to

LMRS

pMGW, uMGW

STP (Local STP, STP-G, STP-L), HLR (SRI Query flow)

Switches and router

Various N/W Elements(LNP, VM, SMSC, CAMEL ).

Understand Type of interfaces, Link Count, and width customer IP switches and

routes for following

IuCS flow,

H.248 Signalling, earer

O AM messages flow, illing CDRs

PSTN connectivity

STP connectivity. (HSL ,LSL links)


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Use pursuant to company instruction

Call Flows: Mobile to Land

uMGW

pMGWRNC

Remove: GSMMSC

RNC

3

1

LSSServer

PST

2

Steps:

1: Registration

2: Mobile dials PSTN

3: Digit analysis TG selection

4: Call is routed to PSTN via pMGW

STP

TDM

ATM

IP

H.248


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Mobile to Land call Requirements (Contd)Registration,

HPLMN (MCC, MNC), EPLMN

IMSI, MSISDN,

CLLI, PC, N PC, e164 address for LSS/VLR

CLLI, PC, Alias PC for STPs serving the SSA like Local STP, STP-G (GFLE ),

STP-L (LNP)

TT, SSN for HLR queries (Defined by 3GPP)

Mo ile dials PST num er:

Trun plan:

Trunk groups for local, LD , IMT, CALEA, E911, Hand Over trunks

TG name, TG number, DPC, CLLI code, Number of members, CIC, Framing,

line coding, glare rules, hunting options, echo canceling, out pulsed digits.

Voice mail (Direct trunk or IMT). Cingular uses IMT trunk to connect to VM.


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Use pursuant to company instruction

Mobile to Land call Requirements (Contd)

ial plan:

List of NPA, N (Local, Long distance, International).

NPA N routing information (Primary secondary routes).

List of N11 and ADC codes (including * # codes) and their routing information (

Number translated, TG).

Routing Type: IMSI based routing or Location ased routing.

Important ote:

Work with customer to build a Standard layout for Digit table, Route tables, TG

and RL naming standards and follow the same standard in the entire network

deployment.

L

CCDU (TG, CICs, members, IP address).

CDDU (Point Code, RTU License for UMTS, IP address).


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Land to Mobile call

uMGW

pMGWRNC

GSMMSC

1. PSTN dials Mobile and call is routed to GSM underlay2. GSM-MSC performs SRI Query to HLR

3. HLR send PRN query to 3G-MSC

4: 3G-MSC returns MSRN

. GSM-MSC routes to pMGW.

RNC

4

1

2

LSSServer

PST

3

STP

TDM

ATM

IP

H.248


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Land to Mobile Requirements (Contd)

SRI Query One MSRN Pool

MSRN handling Impact on Call routing

Incoming IMT trunks: Cingular used IMTs trunks to support secondary treatments on

e isting infrastructure..


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LNP Query Requirements

LRN numbers for LSS

LNP Database SSN, TT, PC, e164 address

LNP query implementation (Will the LNP query done by LSS or 2GMSC)

Direct trunk to LNP data base

JIP (Jurisdiction Information parameter) to identify originating switch for billing purposes.

LNP query requirements for NPA N move into LNP query


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IRAT Requirements

Hand over numbers for LSS

2G MSC IRAT Information

Hand off strategy and its implementation

Call Delivery MSRN, Mobile HON,

GSM MSC/VLR e164 address, PC

MCC, MNC,

LAC, SAC,

EPLMN

Hand off Trunk


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Supplementary services requirementsAnnouncements:

List of Announcements

Cause code to treatment mapping

CD for Announcements with market tags.

Voice mail

VM Pilot numbers

CLLI name, PC ( if Direct trunks are built from pMGW to VMS)

SMS Requirements

Type of SMSC (OTA, MO, MT)

PC, e164 address, SSN, TT

CAMEL Requirements:

Cingular is implementing Hot line OD on CAMEL SCP

SSN, TT, PC, e164 address


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Emergency call setup requirementsE911 & 11 Routing:

Implementation methods:

Phase 2: RRC redirect is used, 911 call is forced to go on GSM network for phase2 support.

Phase 1 is used as fall back for Phase 2 on UMTS network

Phase1 and Phase 0: Call is handled on UMTS network.

Phase 0 is used as fall back for phase 1.

E911 Architecture. Connectivity to GMLC PSAPs

List of Node with LAC, RAC, SAC, ESRN, ESRK, default routing number, PSAP

Name, E911 Phase supported

GMLC PC, e164 address.

E911 Trunks for GMLC (Incoming, Loop around)

E911 ISUP Trunks to PSAP: Since some PSAPs dont have ISUP trunks.

Trunks to PSAP Selective router.

using IMT trunks for routing to PSAP via GSM MSC.


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NDER Tabs for Core CS

Translations - UMTS MSRNs HONs

Translations - Local NPA

Translation - ADC-SAC

Translations -LRN

Translations - PSTN Routing Translations- VM Routing

Translations- arred Codes

Translations - CAMEL Routing

Translations - Announcement

Topology Diagram (Albuquerque)

Network Planning

RNC Data - Node 911

Alcatel RSP-ESE-ATM

IP Subnets

SS Network

Physical Connectivity

Translation-IRAT

Transport- pMGW T1 -OC3

mapping Interconnect - Trunk Groups

Interconnect-Route list

Sample ER -

Microsoft Excel

Worksheet


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NDER- Core CS Design Requirements

Q&A

Than you for ha ing me!

Documents

CoreCSDesignrequirements