presentation ip-cdma core network

8/11/2019 Presentation IP-CDMA Core Network

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Niraj RajbanshiSenior Engineer

DWT, CDMA O&M


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IS95A (2G) IS95B (2.5G)

CDMA 20001X (3G)

CDMA 20001X EVDO


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CDMA 2000 Phase 0CDMA 2000 Phase 1

CDMA 2000 Phase 2

CDMA 2000 Phase 3


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Adopted Time Division Multiplex (TDM)technology

Legacy CDMA network


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Network Reference Model of CDMA NSS Phase 0 and 1


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High CAPEX and OPEX

based specifically for voice and equipment highlycustomized

bandwidth usage is inefficient

Large mix of different technologies and proprietarytechnology


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Expensive Transmission Network

Slow provisioning of new services

Complicated Network Architecture

Distributed O M


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Single platform for voice, video and data Packet switched technology - more efficient

use of bandwidth

flexible and adaptive services can now be transparently distributed

over IP networks standalone legacy systemnot required.


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first step for NSS evolution towards all IPnetwork

Legacy Mobile Station Domain (LMSD)


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MSCe has the signaling and call control aspects of an MSC, uses [3GPP2-5] for call control and service signaling, uses IP signaling to control the MRFP for tones and

announcements,

uses IP signaling to control the MGW for bearerestablishment, uses IP signaling to control the MGW for bridging control, uses IP signaling for bearer management control

associated with reference point yy, and

for Call Delivery, translates a received E.164 TLDN into anIP address when an IP

bearer is to be used.


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MGW-and-MRFP

have the bearer aspects and switching fabric of anMSC, X.S0012-0 v2.0

have the tone and announcement capabilities of anMSC,

have the bridging capabilities of an MSC,

support IP bearer for Call Delivery to other LMSDs,

support circuit bearer for connectivity to the PSTN, use IP signaling from the MSCe for tones and

announcements control,

use IP signaling from the MSCe for bearerestablishment,

use IP signaling from the MSCe for bridging control


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HLRe

IP signaling interface is added to the HLRe to

manage the users voice service and dataservice features and the users location andaccessibility information.


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SCP emulator (SCPe)

IP signaling interface

processes the call control function andservice customization request during the WINprocess


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Signaling gateway (SGW)

conducts conversion between SS7 signaling

transmission (SS7 MTP) and IP-basedsignaling transmission (SIGTRAN SCTP/IP).

It effectively guarantees the serviceintegration between different networks.


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Reference Point 39

Reference Point xx

Reference Point yy

Reference Point zz


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Fully IP Network Called Multimedia Domain (MMD)


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MGCF: Media Gateway Control Function MRFC: Media Resource Function ContCSCF: Call Session Control Function MRFP: Media Resource FunctiHSS: Home Subscriber Server


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Thank You

presentation ip-cdma core network

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