UMTS LTE Interfaces - Part 3

 
S9 - Interface between
Home PCRF and the Visited PCRF

Functionality
QoS policy transfer and charging control information. It supports local breakout function.
 
S10 - Interface between
Multiple MMEs

Functionality
MME relocation and information transfer.
 
S11 - Interface between
MME and Serving GW
Functionality
Reference point.
 
S12 - Interface between UTRAN and Serving GW
Functionality
GTP-U protocol is used to define this reference point for user plane tunnelling with Direct Tunnel.. Usage of S12 is an operator configuration.
 
S13- Interface between MME and EIR.

Functionality
Enables UE identity check procedure.
 
Sgi - Interface between
PDN GW and the packet data network.

Functionality
Packet data network interface for 3GPP accesses.
1. Operator external public
2. Private packet data network
3. Intra operator packet data network, e.g. provision of IMS services.
 
Rx- Interface between
AF and the PCRF
Functionality
Rx reference point.

Sbc- Interface between
CBC and MME
Functionality
Warning message delivery and control functions.
 

LTE - 4G Wireless Technology

Digital fundamentals.

Interview Questions.

Tutorials @fullchipdesign.com

Verilog Tutorial.

LTE Tutorial.

Memory Tutorial.

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