| PCS NETWORK | GSM | CDMA | SATCOM | RANDOM |
|---|---|---|---|---|
|
4G
Which mobile technology has introduced:
High definition mobile TV |
MSISDN
Your phone number
|
FDMA
A specific frequency band is given to one person, and it will received by identifying each of the frequency on the receiving end.
|
30–40 MHz
Sky wave propagation is suitable for frequencies between?
|
850 MHz and 1900 MHz
In the US, GSM is operated in which frequency band(s)?
|
|
3G
Which mobile technology has:
Data speeds of 144 kbps to 2 Mbps |
BTS
The cell tower
|
32 bits
How many bits is the ESN?
|
In narrowband data − e.g. point – of – sale transactions using debit cards or credit cards, RFID data
In broadband data − e.g. Internet access to remote locations, VoIP Mobile communications Maritime communications
List 2 usages of VSAT.
|
IMSI
SIM identifier
|
|
2G
Which mobile technology made:
Text and multimedia messaging possible |
TMSI
Stored on the network side only in the VLR and is not passed to the HLR.
|
FDMA
What is the first generation of analog mobile phone.
|
Satellite's footprint
The area which receives a signal of useful strength from the satellite.
|
Public Land Mobile Network (PLMN)
The area covered by one network operator.
|
|
1G
Which mobile technology has:
No data security |
Type Approval Code (TAC) : 6 decimal places, centrally assigned.
Final Assembly Code (FAC) : 6 decimal places, assigned by the manufacturer. Serial Number (SNR) : 6 decimal places, assigned by the manufacturer. Spare (SP) : 1 decimal place.
GSM IMEI format.
|
CDMA
Allows up to 61 concurrent users.
|
Star Topology
This has a central uplink site which transmits data from and to each VSAT through the satellite.
|
GSM
ATT & T-Mobile
|
|
1G mobile communication system was introduced in Japan in 1979 by Nippon Telegraph and Telephone (NTT). Initially, it started in Tokyo and within next five years expanded to cover the whole of Japan.
Second generation (2G) mobile phones switched from analog system of 1G to digital system. It was commercially launched in 1991 as GSM standard in Finland.
History:
Where and when 1G was introduced? Where and when 2G was introduced? |
Country Code (CC) : 3 decimal places.
Mobile Network Code (MNC) : 2 decimal places. Location Area Code (LAC) : maximum 5 decimal places or maximum twice 8 bits coded in hexadecimal (LAC < FFFF).
GSM LAI format.
|
The mobile network code (MNC) and the mobile station identification number (SIDS).
The NMSI consists of 2 identifiers?
|
Area of coverage is more than that of terrestrial systems
Each and every corner of the earth can be covered Transmission cost is independent of coverage area More bandwidth and broadcasting possibilites
List 2 advantages of using satellite communication.
|
RAND - 128 bit
SRES - 32 bit Kc - 64 bit
What are the triplet and how many bit are each of them?
|
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