Wireless Communication Generations

Summer Training Presentation

on“Wireless Communication”

Name- Mohit Kumar SinghECE ‘4th’ yearRoll No-120070102065

Contents:-

BTS (Base Transreceiver System) Parameters for network optimization at MSC level Generation of wireless cellular system 1st generation 2nd generation GSM Architecture GPRS EDGE 3rd Generation 4th Generation

BTS (Base Transreceiver System):-

A BTS site contains:- Tower containing RF and microwave antenna Power supply containing SMPS(Simple Mode Power Supply)

and battery backup Shelter containing BTS device Jumper and feeder cables for the connection between BTS

and antenna DDF (Digital Distribution frame) perform bits formation

An actual BTS site:-

Parameters for network optimization at MSC level:-

ASR (Answer to Seize Ratio) PSR (Paging Success Rate) SCR (Success call Rate)

Generations of wireless cellular system:-

First Generation(1G)Second Generation(2G) GSM GPRS EDGEThird Generation(3G)Fourth Generation(4G) LTE(Long Term Evolution) Wi-Max(Worldwide Interoperability for

Microwave Access)

1’st Generation(1G):-

Works on analog system Related technologies- (i) NMI(Nordic Mobile Technology) (ii) TACS(Total Access Communication System) (iii) NTACS(European Total Access Communication System) Based on FDMA(Frequency Division Multiplexing)

Second Generation(2G):-

Digital Communication first used Initial technology of 2G was called Groupe Special

Module which later converted to Global System for Mobile Communication

Used only for voice calling Channel distribution based on TDMA(Time Division

Multiple Access) Modulate 2-bit at a time Channel bandwidth of 200KHz is proposed

GSM Architecture:-

GSM Identifiers:-

IMSI (International Mobile Subscriber Identity) IMSI contains- (i)MCC(Mobile Country Code) -3 Digit (404/405 for India) (ii)MNC(Mobile Network code)-2 digits (iii)MSIN(Mobile Subscriber Integrated Number)-10 digits MSISDN(Mobile Subscriber Integrated Service Digital

Number) MSISDN Contains- (i)CC(Country Code)-+91/0 (ii)NVM(National Valid Number)-MSC id + HLR id + Serial no

GPRS(General Packet Radio Service):-

Data transmission was introduced Data speed of up to 20-50 kbps Based on packet switching

EDGE(Enhance Data rate for GSM Evolution):-

Used for enhanced data rate(up to 200 kbps) 8PSK modulation scheme is used 3-bit modulation at a time so data rate increase up to 2 to 4

times Both voice and data transmission is possible

Third Generation(3G):-

Proposed by 3GPP(Third Generation Partnership Project)

UMTS (Universal Mobile Terrestrial System) standard was used

Minimum speed of 200 kbps was defined for 3GWCDMA(wideband CDMA) interface was used HSDPA(3.5G) and HSUPA(3.75G) was further introduced

for higher data Channel bandwidth is 5MHz

3G Architecture:-

4th Generation:-

Objective:- Download speed of 1 Gbps for stationary users and

100 Mbps for moving usersFully packet switched networkMobile ultra broadband concept(fixed speed to each

user)Total IP based communication

4G requirements:-

MIMO TechnologyOFDMA conceptSmart Antenna Flexible Bandwidth

4G Architecture:-

4G standards:-

4G

LTE Wi-Max (Long Term Evolution)

LTE(Long Term Evolution):-

Introduced by 3GPPFirst proposed by NTT DoCoMo of Japan in 2004Initial objective was to achieve downloading speed of

1Gbps and uploading speed of 100MbpsLTE only achieved speed up to 300 MbpsFurther releases was introduced as LTE-A and LTE-B for

achieving the speed of 1Gbps

Wi-Max:-

IEEE 802.16 standard Provide higher data rate of 70 MbpsProvide services in 2 modes:- i) Line-Of-Sight Mode(10-66 GHz) ii) None Line-Of-Sight Mode(2-11 GHz)Range of operation is 10-15 Km(Using Wi-Max Tower)

THANK YOU