NGN Architecture

NGN (Next Generation Network) ialah suatu arsitektur jaringan telekomunikasi masa depan yang seluruh komunikasinya dilakukan dengan berbasis full paket.

Key consepts for NGN Architecture

* Separation between service and transport

* Personal and terminal mobility

* Resource and admission control

* QoS selection & control

* Accommodation of legacy terminals and systems

General principles of the NGN functional architecture

* Support for multiple access technologies

* Distributed control

* Open control

* Independent service provisioning

* Support for services in a converged network

* Enhanced security and protection

* Functional entity characteristics

Transport stratum functions

The transport stratum functions include :

* transport functions and

* transport control functions

Transport functions

* Provide the connectivity for all components and physically separated functions within the NGN.

* Provide support for the transfer of media information, as well as the transfer of control and management information.

Transport functions include :

- access network functions,

- edge functions,

- core transport functions, and

- gateway functions.

Transport control functions

The Transport control functions include :

* Resource and Admission Control Functions and

* Network Attachment Control Functions.

Some benefits of NGN

* Bandwidth Saving:

- 64 K compare to 8 kbps (ITU G.729)

Saving about 7/8 = 87,5 %

Increasing level of network optimization

* Footprint comparison for 36.000 line

- PSTN : SS = 13 racks : 1 rack

- 171.60 : 13.20 (converting for cost comparison)

* Power consumption

- PSTN : SS = 600 A : 24 A

- 62.40 : 4.80 (converting for cost comparison)