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EC-503 (B) RGPV B.Tech

MOBILE COMMUNICATION (MC)

Previous year papers and the official syllabus are free to read, no account needed.

Previous Year Papers

4 papers, latest Jun 2025

Free
See all 4 papers

Syllabus, notes and important questions for EC-503 (B)

Syllabus units

Topics as the official RGPV syllabus lists them.

Unit 1 Introduction to wireless communication systems 6 topics
  • different generations of wireless networks
  • Cellular system design fundamentals
  • frequency reuse
  • handoff strategies
  • interference and system capacity
  • trunking and grade of service
Unit 1 notes
Unit 2 Mobile radio propagation 10 topics
  • Free space propagation model
  • Ground reflection propagation model
  • Long term fading
  • Small scale multipath propagation
  • Time dispersion parameters
  • Coherence bandwidth
  • Doppler spread and coherence time
  • Types of small‑scale fading
  • Clarke’s model for flat fading
  • Level crossing and fading statistics
Unit 2 notes
Unit 3 Capacity in cellular systems 4 topics
  • cell splitting and sectoring
  • cell‑site antennas and mobile antenna
  • co‑channel interference reduction
  • frequency management and channel assignment
Unit 3 notes
Unit 4 Frequency division and time division multiple access 4 topics
  • Global System for Mobile (GSM) system architecture
  • GSM radio subsystem
  • GSM traffic channel and control channel
  • GSM frame structure
Unit 4 notes
Unit 5 Spread spectrum multiple access 5 topics
  • Frequency Hopped Multiple Access (FHMA)
  • Code Division Multiple Access (CDMA)
  • different spreading codes
  • CDMA digital cellular system – standards, forward and reverse channels
  • capacity of cellular systems
Unit 5 notes
Read the full syllabus

Exam insights

Counted from 4 past EC-503 (B) papers.

Marks asked per paper, by unit

  • Unit 1 Introduction to wireless communication systems 18 marks
  • Unit 2 Mobile radio propagation 26 marks
  • Unit 3 Capacity in cellular systems 23 marks
  • Unit 4 Frequency division and time division multiple access 23 marks
  • Unit 5 Spread spectrum multiple access 16 marks

Average marks of the questions from each unit in one paper. You answer only some of them, so the total is more than the paper’s maximum.

Asked again and again

  1. Explain handoff mechanism, necessity, techniques including MAHO, queuing, and types of handoff (hard, soft, etc.) in cellular mobile systems.

    Asked 4 times: 2025, 2023, 2022, 2020

  2. Explain Clarke's model for flat fading, including fading statistics and level crossing rate.

    Asked 4 times: 2025, 2023, 2022, 2020

  3. Explain the GSM system architecture with block diagram and functions of each sub-system, including interfaces

    Asked 4 times: 2024, 2023, 2022, 2020

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