Using cloud computing to integrate multiple NODE B through RNC in a 3G network

ARPIT MISHRA

MTECH(EXTC)405

UNDER THE GUIDANCE OF : PROF.RUKHSANA KHAN

What is CLOUD COMPUTING??

Introduction

Node B which had to be configured earlier

through RNC one by one, can be managed

simultaneously with the help of cloud

computing which works on a common server

and, henceforth if one NODE B is configured

then all other NODE B which are connected to

the same RNC via the CLOUD could be

configured simultaneously

• Cloud computing refers to

– the applications delivered as services over the Internet

– the hardware and systems software in the data centers that provide those services.

• The services are referred to as Software as a Service (SaaS).and IaaS (Infrastructure as a Service) or PaaS (Platform as a Service)

SYSTEM ARCHITECTURE

RNC (Radio Network Controller)

• The Radio Network Controller (or RNC) is a

governing element in the UMTS radio access network

(UTRAN) and is responsible for controlling the Node

Bs that are connected to it.

• The RNC carries out radio resource management,

some of the mobility management functions and is the

point where encryption is done before user data is sent

to and from the mobile.

• The RNC connects to the Circuit Switched Core

Network through Media Gateway (MGW) and to the

SGSN (Serving GPRS Support Node) in the Packet

Switched Core Network.

NODE B• Node B is a term used in UMTS equivalent to the BTS

(base transceiver station) description used in GSM.

• It is the hardware that is connected to the mobile

phone network that communicates directly with

mobile handsets. In contrast with GSM base stations.

• Node B uses WCDMA/TD-SCDMA as the air

interface technology.

• As in all cellular systems, such as UMTS and GSM,

the Node B contains radio frequency transmitter(s) and

the receiver(s) used to communicate directly with

mobile devices, which move freely around it.

• In this type of cellular network, the mobile devices

cannot communicate directly with each other but have

to communicate with the Node B.

Power Amplifier Unit – HPA • Amplifies RF signals • Reports temperature • Provides overcurrent, over temperature, overpower, and

over standing wave protections

Duplex Filter Unit – DFL • Provides transmission/reception combination and

dividing/splitting functions for RF signals • Provides transmit/receive RF channel filtering • Provides the low noise amplifier (LNA) function • Provides transceiver unit with the LNA alarm reporting

function

Power Module – RPW

• Power modules can be divided into AC and DC power

modules, that is, RPW AC/DC. If AC power supply is

used, the RPW AC is configured. If DC power supply is

used, the RPW DC is configured. The RPW provides the

following functions:

• Coverts AC/DC power supply

• Provides the transceiver unit with under voltage,

overvoltage, and overcurrent alarms

Control Clock & Switch Board (CC)

It has Ethernet switching function and supports the data switching between

service flow and control flow in the system.

• It handles Iub interface protocols (NBAP, SSCOP, and ALCAP).

• It monitors, controls, and maintains base station systems.

• It manages the versions of board software and programmable logic devices

in the system, and supports local and remote version upgrade.

• It monitors the working condition of the boards in the system.

• It synchronizes external reference clocks.

• It generates and distributes the clock signals required by individual parts

in the system.

Fiber Switch Board (FS)

Interface introduction:

• Tx0/Rx0 - Tx5/Rx5: It provides the optical interface that

connects with RRU.

• Board functions.

• It switches baseband I/Q data. It provides the interface

between BBU and RRU

Site Alarm Board (SA)

• SA Board functions.

• It supports alarm control and speed control of up to nine

fans.

• It provides signal monitoring and interface lightning

protection for the shelf at which it is located.

• It provides six input dry contact interfaces and two

input/output dry contact interfaces.

• It provides eight E1/T1 interfaces.

CLOUD COMPUTING

• a model for enabling convenient, on-demand

network access to a shared pool of configurable

computing resources (e.g., networks, servers,

storage, applications, and services) that can be

rapidly provisioned and released with minimal

management effort or service provider interaction.

• Cloud Computing makes computer infrastructure

and services available "on-need" basis.

Layers

Use of Cloud Computing in Telecom

• All function entities in hierarchical layers of telecom

networks used to run on dedicated servers.

• With cloud computing, these servers can now be

located in the cloud.

• The hierarchical layers of telecom networks will

disappear.

• All functions entities of telecom networks can be

dynamically created, allocated, de-allocated, moved

and removed from virtual machines in the cloud.

• Benefits include

to scale telecom services on demand

to improve reliability and availability

to efficiently use infrastructure

FLOWCHART

CONCLUSION

• Cloud computing is the future trend of the world-wide IT

industry.

• Telecom networks are evolving quickly to broadband

wireless IP networks with emergence of LTE/SAE.

• Two aspects of integration of cloud computing and telecom

networks

Use of Telecom Networks in Cloud Computing

Use of Cloud Computing in Telecom Networks

References

1. 3GPP. Technical Specification Group Radio Access Network;

Physical channels and mapping of transport channels onto physical

channels (FDD) (Release 6). 3rd Generation Partnership Project, Dec.

2005. 3GPP TS 25.211 V6.7.0.

2. 3GPP. Technical Specification Group Radio Access Network; Base

Station (BS) radio transmission and reception (FDD) (Release 6). 3rd

Generation Partnership Project, Dec. 2006. 3GPP TS 25.104 V6.14.0.

3. 3GPP. Technical Specification Group Radio Access Network;

Synchronisation in UTRAN Stage 2 (Release 6). 3rd Generation

Partnership Project, Dec. 2006. 3GPP TS 25.402 V6.5.0.

4. 3GPP. Technical Specification Group Radio Access Network;

UTRAN overall description (Release 6). 3rd Generation Partnership

Project, Dec. 2006. 3GPP TS 25.401 V6.9.0.

5. Holma, H., and Toskala, A. WCDMA for UMTS: Radio Access for

Third Generation Mobile Communications, revised ed. John Wiley &

Sons,Ltd., Chichester, West Sussex, England, 2001.

6. Hurtig, P. Private Communication. Ericsson, RBSIoV, Oct. 2006. .