Notes - MIECT
Comunicações Móveis
Notes - MIECT
Comunicações Móveis
  • Comunicações Móveis
  • The Communication Network
    • The Phone Network
    • The Internet
    • The Mobile Network
  • Wireless Systems
    • Wireless Systems
    • Mobile Hassles
    • Device Issues
    • Why is mobile hard?
  • Physical Layer
    • Classifications of Transmission Media
    • Wireless
    • Radio Transmission Impairments
    • Time-Domain View
    • Propagation Degrades
    • Propagation Mechanisms
    • Redundancy
  • Satellite Networks
    • Satellites
    • Satellite Networks
      • GEO - Geostationary Orbit
      • NGSO - Non Geostationary Orbits
    • Routing
  • Mobile Networks
    • Connections and structures
    • Cell
    • Wireless networks
    • 802.11
    • Infrastructure vs Ad Hoc Mode
    • Data Flow Examples
    • Physical layer
    • MAC
      • Multi-bit Rate
      • MAC Layer
      • Carrier Sense Multiple Access
      • Some More MAC Features
    • How does a station connect to an Access Point?
      • IEEE 802.11 Mobility
    • How to extend range in Wi- Fi?
      • IEEE 1905.1 standard, Convergent Digital Home Network for Heterogeneous Technologies
  • Bluetooth, Wireless Sensor Networks, ZigBee
    • Bluetooth
      • Piconets
        • Device Discovery Illustrated
        • Paging
      • Scatternet
      • Bluetooth Stack
        • Baseband in Bluetooth
        • Adaptation protocols
      • Profiles and security
        • Bluetooth
        • Link keys in a piconet
      • 802.15.x
        • Bluetooth Networking Encapsulation Protocol
        • Bluetooth 4.0: Low Energy
          • Device Modes
          • Link Layer Connection
          • How low can the energy get?
          • BLE and GAP
    • Wireless Sensor Networks
      • MIoT and HIoT are different
      • Types of Wireless Networks
      • Wireless Sensor Network
      • 802.15.4 and Zigbee
      • 802.15.4 / ZigBee Architecture
        • IEEE 802.15.4 MAC
        • Channel Access Mechanism
        • Association procedures
        • ZigBee
        • ZigBee and BLE
  • Cellular Networks
    • Wireless cellular network
    • Wide Area Wireless Sensor Networks (WWSN)
      • LTE-M
      • NB-IoT
      • Spectrum & Access
      • Cellular technologies
      • LoRa
      • The Things Network
    • Technological waves
    • 1G - Mobile voice
    • 2G - Global System for Mobile Communications (GSM)
    • 2.5G - General Packet Radio Service (GPRS)
    • 3G - Universal Mobile Telecommunication System
      • Multiplexing mechanisms
      • SIP Protocol
      • Services in IMS
    • 4G - Long Term Evolution/Evolved Packet Core (LTE/EPC)
      • Long Term Evolution (LTE)
    • 5G
      • Example of verticals
      • 3GPP Releases detail
      • Technologies
      • New Radio is required
      • System architecture
      • Non-stand Alone (NSA)
      • Networks deployment
      • Protocol stacks
      • Procedures
      • QoS Model
      • Mobility in 5G
      • Distributed cloud: Edge Computing and 5G
      • Slicing
    • 6G
  • Software and Virtualization Technologies in Mobile Communication Networks
    • Network Function Virtualization
    • Management and Orchestration
    • Software Defined Networking
      • How to “direct” the controller?
      • Emulation
      • Programming Protocol-Independent Packet Processors (P4)
    • OpenRAN
    • Multi-access Edge Computing
    • Network Automation
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  • What is 3GPP?
  • Structure
  • 3GPP/TISPAN Telecom Model
  • UMTS
  • Specification
  • Evolution
  • 3G Releases
  • Air interface
  1. Cellular Networks

3G - Universal Mobile Telecommunication System

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Last updated 2 years ago

What is 3GPP?

“The original scope of 3GPP (1998) was to produce Technical Specifications and Technical Reports for a 3G Mobile System based on evolved GSM core networks and the radio access technologies that they support (i.e., Universal Terrestrial Radio Access (UTRA) both Frequency Division Duplex (FDD) and Time Division Duplex (TDD) modes). The scope was subsequently amended to include the maintenance and development of the Technical Specifications and Technical Reports for evolved 3GPP technologies, beyond 3G.”

Structure

3GPP/TISPAN Telecom Model

Telecoms & Internet converged Services & Protocols for Advanced Networks is a standardization body of ETSI, specializing in fixed networks and Internet convergence.

UMTS

Universal Mobile Telecommunication System – 3G system.

Oriented towards generalized service diffusion, and future user trends: combines “cellular, “wireless”, “internet”, etc...

“multimedia everywhere”.

Developed in order to have an evolutionary path from 2.5G systems; progressive evolution (GPRS-EDGE-UMTS).

Specification

  • Flexible.

  • Handles multiple multimedia flows in a single connection.

  • Support to packet transport.

  • Flexible coding mechanisms (FDD/TDD WCDMA).

  • Variable transmission rates.

  • Max. 384 Kbps for global coverage (initially).

  • Max. 2Mbps for local coverage (initially)

Evolution

Services evolution in UMTS R99/R4/R5/R6 networks

3G Releases

Air interface

UTRA-FDD:

  • uplink: 1920 – 1980 MHz (60 MHz).

  • downlink: 2110 – 2170 MHz (60 MHz).

UTRA-TDD:

  • 1900 – 1920 MHz (20 MHz).

  • 2010 – 2025 MHz (15 MHz).

In Portugal:

  • 2x15 MHZ for UTRA-FDD.

  • 1x5 MHz for UTRA-TDD.