PESIT Bangalore South Campus INTERNAL TEST Datepesitsouth.pes.edu/pdf/2018/EC/10EC81_T1.pdfUSN I P E...
Transcript of PESIT Bangalore South Campus INTERNAL TEST Datepesitsouth.pes.edu/pdf/2018/EC/10EC81_T1.pdfUSN I P E...
USNI P E
PESIT Bangalore South CampusHosur road, lkm before Electronic City, Bengaluru -100
Department of Electronics and Communication
INTERNAL ASSESSMENT TEST 1
Date : 26-02-2018 Marks:50
Subject & Code : Wireless Communications ( l0EC8l ) Sec :8A/8B/8C
Name of faculty : K Ramamurthy and Ananda M Time : 8.30 a.m - 10.00 a.m
Note: Answer FIVE full questions Marks
Q.No1 a) With suitable diagrams explain the multiple access schemes used in 2G,3G
and 4G systems.b) Define the following terms with respect to cellular telephone network.
i) Control channel. ii) Hand off. iii) Mobile switching center.
5+5
2 Describe the evolulion of mobile radio networks from 1G to 2G and then 3G.
Explain the important features in 3G cellular networks.7+3
3 Draw the block diagram ofBSS. Explain the functions ofRBS and BSC 2+4+4
4 With neat block diagram explain the MSC subsystem. Explain the TRC function' 8+2
5 a) Describe the major differences between CDMA RBS and TDMA RBS
b) Write short notes on the following cellular components
i) HLR. iD MSC/VLR,
5+5
6 a) Explain how the mobile station identifies the ce[[ and decode the system
information when it is powered on.
b) Explain various scenarios of mobile originating call up to Traffic channel
allocation.7 Explain the various scenarios in rnobile terminating call indicating the global
title translation functions in each signaling point.
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Department of Electronics and CommunicationSCHEME AND SOLUTION
INTERNAL TESTSemester3
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