GTU BE 6th Semester 2163204 Telecommunication Engineering Summer 2018 Question Paper

Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE – SEMESTER ?VI (NEW) – EXAMINATION ? SUMMER 2018
Subject Code: 2163204 Date: 08/05/2018
Subject Name: Telecommunication Engineering
Time: 10:30 AM to 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 (a) Write a short note on PCM. 03
(b) Explain Time Division Time Switch. 04
(c) Explain distributed SPC and level 3 processing in detail and also explain hardwired
and micro programmed control system.
07

Q.2 (a) List the difference between Single stage and Multi stage network. 03
(b) Explain Sampling and Quantization. 04
(c) Explain centralized SPC and also explain the drawback of it. 07
OR
(c) Explain VOCODER in Detail. 07
Q.3 (a) Discuss operations of synchronous duplex mode of stored program control 03
(b) Discuss operations of load sharing mode of stored program control. 04
(c) Draw and Explain the basic scheme for Common Channel Signaling. 07
OR
Q.3 (a) Discuss operations of Standby mode of stored program control 03
(b) Define:-Erlang, CCR , BHCA, Grade of service. 04
(c) Classify signaling technique & Discuss architecture of SS7.
07
Q.4 (a) Define following terms: 1)busy hour 2) peak busy hour 3)time consistent busy hour 03
(b) Write a short note on Companding. 04
(c) Explain the N ? N three stage switching network. Draw the Lee?s graph to discuss its
blocking probability.
07
OR
Q.4 (a) In a group of 10 servers, each occupied for 30 minutes in an observation interval of
two hours. Calculate the traffic carried by the group.
03
(b) Discuss Three-party Conferencing connection. 04
(c) Explain ISO-OSI Reference Model with functionality of each layer. 07
Q.5 (a) What are the broad categories of the enhanced services? 03
(b) Compare Inband & Outband Signaling. 04
(c) Explain in detail LCC system with finite subscribers with derivation of blocking
probability and GOS.
07
OR
Q.5 (a) Explain line coding. 03
(b) Compare Circuit Switching vs. Packet Switching. 04
(c) List charging plan for Telecommunication and discuss any two 07