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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On this page
  • Data vs voice traffic
  • Edholm’s Law
  • Cost of investment in telecom
  • Motivations for technologies
  • Consumer Traffic, VNI
  • User behaviour and trends
  • Increased Internet-based services
  • Increased broadband requirements
  • Increased mobility and roaming
  • The opportunity provided by network heterogeneity
  • A Mobile Storage Revolution …
  • ... a Multiplicity of Local Connectivity
  • The wireless framework
  1. The Communication Network

The Mobile Network

PreviousThe InternetNextWireless Systems

Last updated 2 years ago

Data vs voice traffic

Edholm’s Law

Cost of investment in telecom

Motivations for technologies

Consumer Traffic, VNI

User behaviour and trends

Increased Internet-based services

Phone market is now saturated.

“Everything” came to “data communications”.

Increased broadband requirements

P2P being replaced by service-based.

Internet access 2x every 2 years – fiber access now blooming.

70% broadband penetration.

Increased mobility and roaming

Always on and session continuity.

Increased end-user content.

  • Both WLAN and 4G.

Increased context information.

  • Increased personalization.

  • Increased machine/vehicle/object communications.

The opportunity provided by network heterogeneity

A Mobile Storage Revolution …

Embedded Flash

128mb >>> 64GB

  • Small size to minimise handset cost;

  • Used for storing system data: applications, messages, contacts, ring-tones.

Embedded (SD/H)DD

2GB >>> 256 GB

  • Large storage for user content;

  • But high impact on terminal cost;

Memory Card

128mb >>> 1 TB

  • Large and removable storage for easy transfer of user content;

  • Interoperable with other consumer electronic devices;

  • Provides a distribution channel for selling content.

... a Multiplicity of Local Connectivity

Today

  • Bluetooth;

  • WiFi;

  • Memory cards;

  • USB;

  • Near Field Communications:

    • device pairing & local network configuration;

    • service discovery/initiation.

Tomorrow

All of the above with the addition of:

  • WLAN+ (802.11g++);

    • home and office connectivity;

    • wireless extension of DSL in the home;

  • UWB;

    • wireless USB;

  • TV/DVB;

The wireless framework

Mobile systems is THE major business.

Operators are becoming increasingly focused on mobile customers.

  • Most of market will be wireless anyway on the access;

Services are now a dominant aspect in this arena.

  • Large economic fights ongoing.

Mobility brought a novel importance to Location- based Services (LBS).

  • Now proximity is a dynamic variable for the user.