3g-stuff

Views:
 
Category: Education
     
 

Presentation Description

No description available.

Comments

Presentation Transcript

UMTS Traffic Management : 

1 © 2005 Nokia 3GSYSTRA _M1/Traffic Management UMTS Traffic Management

UMTS network databases : 

2 © 2005 Nokia 3GSYSTRA _M1/Traffic Management UMTS network databases Fiber Fiber AXC ATM access Internet RAN Control Plane Gateway Plane SMSC Used as an intermediate store for SMS Contains subscriber IDs, service information and location attributes. In AuC subscriber security information and in some implementations EIR Used to support subscriber services Contains temporary information on subscriber Contains temporary information on the subscriber SCEP

Unique subscriber identities : 

3 © 2005 Nokia 3GSYSTRA _M1/Traffic Management Unique subscriber identities MSISDN = CC + NDC + SN one or more MSISDN is assigned to a subscriber for different services IMSI = MCC + MNC + MSIN IMSI uniquely identifies each subscriber.

Temporary subscriber identities : 

4 © 2005 Nokia 3GSYSTRA _M1/Traffic Management Fiber Fiber AXC ATM Access Internet RAN (UTRAN & GERAN) Control Plane Gateway Plane SCEP SMSC Temporary subscriber identities P-TMSI is allocated for packet transactions by the SGSN. The TMSI is generated by the VLR and used for CS transactions

Mobile terminal security : 

5 © 2005 Nokia 3GSYSTRA _M1/Traffic Management Mobile terminal security RAN The IMEI is used to track legal mobile equipment (optional)

What is the bearer? : 

6 © 2005 Nokia 3GSYSTRA _M1/Traffic Management What is the bearer? The MGW for 3G-MSC performs speech transcoding

Bearer characteristics : 

7 © 2005 Nokia 3GSYSTRA _M1/Traffic Management Bearer characteristics

Types of bearer : 

8 © 2005 Nokia 3GSYSTRA _M1/Traffic Management Types of bearer A bearer has different parameters, such as variable data rates, protection and delay. The bearer is dependent on the service required.

Transmission over the network : 

9 © 2005 Nokia 3GSYSTRA _M1/Traffic Management Transmission over the network

Paging the subscriber : 

10 © 2005 Nokia 3GSYSTRA _M1/Traffic Management Paging the subscriber

Network roaming : 

11 © 2005 Nokia 3GSYSTRA _M1/Traffic Management Network roaming

IMSI Attach when a subscriber is registeredin another VLR : 

12 © 2005 Nokia 3GSYSTRA _M1/Traffic Management IMSI Attach when a subscriber is registeredin another VLR 3G SGSN RNC HLRACEIR 3G MSC 3G MSC RNC also keeps information about subscribers within the URA.

Requesting a bearer : 

13 © 2005 Nokia 3GSYSTRA _M1/Traffic Management Requesting a bearer Mobile in idle mode and camping on a cell.

Authentication : 

14 © 2005 Nokia 3GSYSTRA _M1/Traffic Management Authentication The HLR contains information on the subscriber, terminal, location and services. Authentication codes and keys are stored and generated in the AuC The SIM and terminal contain authentication keys

authorStream Live Help