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LTE Indoor Radio Planning

Course Description

In the initial phase of LTE roll-outs, the focus is generally set on achiving macro coverage in one or more frequency bands. Some challenging environments such as road/train tunnels, shopping malls, sports arenas, airports, high rises require specially designed systems to serve the customers with seemless voice and high data-rate services.

New building materials and metallized windows further inhibits the mobile signals even for small and medium sized office- and residential buildings, increasing the demands for customized indoor solutions.

In order to design a well functioning indoor system, it is of great importance to understand the features and parameters that affect LTE capacity and its interaction with the existing UMTS and GSM technologies. In most cases UMTS and GSM are also included in the designs.

Some systems are built for multi operators each with several technologies, resulting in a multitude of frequencies at high power. If not properly deigned, non-linearities might be introduced making the systems prone to generate inter modulation products (PIM). PIM can severely degrade the over all performance or even shut down a system.

With several detailed calculations and indoor case studies, the course “LTE Indoor Radio Planning” also covers some of the LTE Advanced features soon to be implemented such as Carrier Aggregation, SON, 4X4 MIMO etc.

Content

LTE AIR INTERFACE AND CHANNEL STRUCTURE
  • Link LTE protocols and channels
  • OFDM and SC-FDMA
  • Link adaptation
  • LTE FDD radio frame, resource blocks
  • Channels and signals
  • Automatic Neighbor Relations
  • Physical Cell Identity
  • Tracking Area
  • Exercise and examples
MULTIPLE ANTENNA TECHNIQUES
  • Review of antenna principles
  • Tx Diversity vs Spatial Multiplexing
  • SU-MIMO, MU-MIMO
  • Practical antenna configurations
  • MIMO influence on throughput and network capacity
  • Exercises and examples
THE RF INDOOR PLANNING
  • The RF planning process
  • Isolation challenges and Zone planning
  • Combining indoor and outdoor coverage
  • Passive vs active DAS
  • RF measurements and evaluation
  • Indoor solutions with multi-operator support
CALCULATE RF COVERAGE FROM GIVEN REQUIREMENTS
  • Indoor propagation and channel models for LTE
  • Gain and loss calculations in uplink and downlink
  • Repeater gain and capacity calculations
  • Indoor link budget calculations for coverage and capacity
PLAN AND DESIGN AN INDOOR SYSTEM
  • Passive, active and hybrid DAS
  • Planning the DAS solution
  • Planning the Femto-solution
  • Introducing the indoor repeater solution
  • Planning and designing indoor MIMO
  • Configuring the UL/DL power to meet target performance
  • Calculating MIMO antenna options and distance separations
  • Combining DAS and MIMO for indoor
  • Upgrading existing DAS
  • Indoor measurements with and without MIMO
  • PIM problems and solutions
  • Study case 2014 World cup in Brazil

    Target audience

    The course is aimed at radio planners and optimizers with the challenge of planning, dimensioning, implementing and optimizing LTE coverage and capacity for indoor environments.

    Pre-requisites

    This course requires the participants to have experience/knowledge of LTE Radio Planning.

    Course length

    3 days

    Price

    2.600 €

    Code

    WM0059

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