Win ppt

WIRELESS INTELLIGENT NETWORK FOR GSM NETWORK

1. WIRELESS INTELLIGENT NETWORK(WIN)FOR GSM Mr. NIMAY CHANDRA GIRI, M-Tech

2. CONTENTS OBJECTIVE INTRODUCTION CONNECTION OF WIN WITH GSM NETWORK WIN ARCHETECTURE CALL FLOW MODEL CALL FLOW CONTROL BY WIN

3. OBJECTIVE Design call flow and control model in Global System for Mobile (GSM) network through Wireless intelligent network (WIN). IN mainly two types(AIN & WIN) as depend on network connection(wire line or wire less) AIN used for fixed network(PSTN) WIN used for mobile network(ISDN/IN)

4. INTRODUCTION TO WIN & GSM Wireless Intelligent Network (WIN) means “Intelligence” is taken out from Switching center to connect computer nodes for reliable operations. WIN is a separate & independent network for both mobile and fixed network. SS7 used in Telecom network like PSTN,ISDN & IN. IN/WIN is a value added system. Applications are-call control, service control & connection control. GLOBAL SYSTEM FOR MOBILECOMMUNICATIONS(GSM) :- GSM developed by the ETSI to describe 2G digital cellular networks. GSM standard was developed as a replacement for 1G analog networks. GSM expanded to include data & voice communications, further improvements were 3G & 4G systems. GSM components are BTS,BSC,MSC(HLR,VLR,AUC),PSTN,ISDN&IN.

5. Connection of IN/WIN with GSM network

6. CALL FLOW MODEL WIN ARCHETECTURE

7. CALL FLOW CONTROL BY WIN Subscriber-A (calling party) dials the MSISDN(telephone no.) of subscriber –B (MSC) The signaling connection established between subscriber-A to GMSC through PSTN step#1 The GMSC receives the dialed number & find out the type of call and sent a inquiry MSISDN to HLR (step#2) & HLR recover address of subscriber-B (i.e. from VLR) step#3 Data base (HLR) sent a inquiry (IMSI) number to MSC for equipment identify & area location MS –B (called party) step#4 VLR ask to MSC to reserve this dialed number step#5 MSC sent a mobile station roaming number(MSRN) to HLR for proceeding the call step#6 After conform of call oriented operation HLR sent request (MSRN) to GMSC for connection of call party –A to B step#7 After receiving MSRN from MSC , GMSC create a direct path to MSC by MSRN to set-up call in between subscriber-A & subscriber-B step#8 Call set-up completed. After the MS-B answer, speech connection is established & MS-B start ringing. IN is used to control the call ,connection the call, call filtering, carries user voice and data traffic from source to destination & value added service to network by the protocol. All process are done by signaling system no.7 (SS7), it has also capability to initiate & terminate the incoming call.

8. IN Standards &capability set (cs) Q.1200 – Q.1208 IN-CS (service as call control) Q.1210 – Q.1219 IN-CS1 (services as call forwarding) Q.1220 – Q.1229 IN-CS2 (services as Conference calling, Call Hold, transfer and waiting.) Q.1230 – Q.1238 IN-CS3 ( services as Inter-Network Service indicator Q.1240,1244,1248.1 IN-CS-4 (services as Multiple points of control)

9. ADVANTAGES Takes less delivery time for services Fast services creation and termination Network is more stable Deliver high volume of data Can manage large no of devices application

10. CONCLUSION There are two overall standards employed today – CAMEL( up to 3G&4G) and WIN( up to 2.5G/3G) Wireless Intelligent Networking allows the service provider to rapidly introduce new services IN/WIN network is a fully independent network Maintaining and monitoring the Common Channel Signaling (CCS) network is critical to its success Understanding and troubleshooting the SS7 protocol is a key part of that success Features controlled out side the switch.

11. THANK YOU