The document is a summer training presentation by Mohit Kumar Singh on wireless communication, covering base transceiver systems, network optimization parameters at MSC level, and the evolution of mobile cellular systems from 1G to 4G. It details the technologies and architecture for each generation, including GSM, GPRS, EDGE, and LTE, along with their respective data transmission speeds and modulation schemes. The presentation emphasizes advancements in wireless communication, such as the move to packet-switched networks in 4G and the introduction of MIMO technology.

1. Summer Training
Presentation
on
“Wireless Communication”
Name- Mohit Kumar Singh
ECE ‘4th’ year
Roll No-120070102065

2. 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

3. BTS (Base TransreceiverSystem):-
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

4. An actual BTS site:-

5. Parametersfor networkoptimizationat MSC
level:-
 ASR (Answer to Seize Ratio)
 PSR (Paging Success Rate)
 SCR (Success call Rate)

6. Generationsof wirelesscellular system:-
First Generation(1G)
Second Generation(2G)
GSM
GPRS
EDGE
Third Generation(3G)
Fourth Generation(4G)
LTE(Long Term Evolution)
Wi-Max(Worldwide Interoperability for
Microwave Access)

7. 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)

8. SecondGeneration(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

9. GSM Architecture:-

10. 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

11. GPRS(GeneralPacketRadio Service):-
 Data transmission was introduced
 Data speed of up to 20-50 kbps
 Based on packet switching

12. EDGE(EnhanceData 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

13. 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 3G
WCDMA(wideband CDMA) interface was used
 HSDPA(3.5G) and HSUPA(3.75G) was further introduced
for higher data
 Channel bandwidth is 5MHz

14. 3G Architecture:-

15. 4th Generation:-
Objective:-
 Download speed of 1 Gbps for stationary users and
100 Mbps for moving users
Fully packet switched network
Mobile ultra broadband concept(fixed speed to each
user)
Total IP based communication

16. 4G requirements:-
MIMO Technology
OFDMA concept
Smart Antenna
Flexible Bandwidth

17. 4G Architecture:-

18. 4G standards:-
4G
LTE Wi-Max
(Long Term Evolution)

19. LTE(LongTerm Evolution):-
Introduced by 3GPP
First proposed by NTT DoCoMo of Japan in 2004
Initial objective was to achieve downloading speed of
1Gbps and uploading speed of 100Mbps
LTE only achieved speed up to 300 Mbps
Further releases was introduced as LTE-A and LTE-B for
achieving the speed of 1Gbps

20. Wi-Max:-
IEEE 802.16 standard
Provide higher data rate of 70 Mbps
Provide 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)

21. THANK YOU