LTE Multiple Antenna & MIMO Techniques

LTE Multiple Antenna, & MIMO Techniques

The LTE Multiple Antenna, MIMO Techniques training course provides a thorough description of the contemporary and future multiple antenna systems, particularly concentrating on Multiple Input Multiple Output, MIMO techniques.

MIMO technology is widely used within the new 3GPP-LTE standards, and therefore MIMO and in general multiple antenna techniques are of great importance

The LTE Multiple Antenna, MIMO Techniques course starts by providing a refresher of wireless propagation and antenna theory. In particular there is a review of the various diversity techniques.

This is followed by the further details of MIMO techniques including SU-MIMO, Single-User MIMO schemes, beam-forming and MU-MIMO, Multi-User MIMO which are widely used in LTE Advanced.

The LTE Multiple Antenna, MIMO Techniques training course moves on to detail SDMA, Space Division Multiple Access, multi-dimensional scheduling and combinations of MIMO and OFDM/OFDMA are explained.

Subsequently, the context of multi-antenna usage in LTE is described in detail, including the various options, limitations, practical considerations, and influence on the system performance.

The training course is finishes by looking at multiple antenna usage within other cellular and wireless systems, including eHSPA and WiMAX.

This theoretical course, utilizing renowned DTM methodology, will be enriched by providing the real demonstrations of the MIMO operation based on the interactive tool implementing the processing blocks of the eNB.

Course focus

The LTE Multiple Antenna Techniques training course has been developed for all telecom professionals working with implementation, planning and deployment of the LTE multiple antenna systems. The course is also suitable for technical decision makers, project managers, researchers, as well as test and verification engineers seeking to broaden their LTE expertise in the area of multi-antenna application.

Course Contents:

Antenna theory introduction

• Multiple path propagation

• Dipole and isotropic antennas

• Electromagnetic wave polarization, beam patterns

• Antenna parameters - gain: dBd, dBi, front:back ratio, side-lobe level, EIRP

• Fresnel zone

Diversity techniques

• Frequency, time and space diversity

• Basic diversity methods - switched / selection diversity; equal gain, maximal ratio and Alamouti combining

• RAKE receiver

• Cyclic delay diversity

• Space-Time Block Coding, Space-Time Trellis Coding

Beam-forming and array processing

• Principles of beam-forming

• Direction of Arrival, DoA, Direction of Departure, DoD

• Beam-forming at the transmitter or beam-forming at the receiver

• Eigenbeam beam-forming

• Multi-user beam-forming

• Practical elements of beam-forming

Single-user MIMO, SU-MIMO

• Principles of spatial multiplexing (spectral efficiency and capacity, transmitting independent streams in parallel)

• Open loop vs closed loop spatial multiplexing

• Open loop encoders and decoders (horizontal, vertical, diagonal)

• Singular value decomposition and MIMO channel in closed loop spatial multiplexing

• Power allocation and waterfilling concepts

Multi-user MIMO, MU-MIMO

• The concept and possible types of multi-user MIMO (downlink, uplink, single-cell, multi-cell)

• Operation of OFDMA with MU-MIMO

• MU-MIMO scheduling, rate and link adaptation

• Uplink collaborative MIMO

• Downlink beam-forming and SDMA

• Multi-cell MU-MIMO and distributed antennas

LTE Multi-antenna details

• MIMO processing when combined with OFDMA and SC-FDMA

• Multi-antenna combinations possible in E-UTRA Rel 8

• LTE MIMO processing chain at the transmitter and at the receiver, pilot patterns

• Options for transport block, code-word, layer and antenna mapping

• SFBC, SM and beam-forming MIMO realizations in LTE

• MIMO mode switching (including switching between SU-MIMO and MU-MIMO)

• MIMO feedback (Pre-coding Matrix Indicator and Rank Indicator)

• Rel 10 LTE MIMO extensions

LTE Multi-antenna Practical Considerations

• Demonstrations of the MIMO operation based on the interactive tool implementing the processing blocks of eNB

• Practical use cases of LTE MIMO

• Typical antenna configurations in commercial cellular deployment

• Influence of MIMO application on the LTE network performance (improvement of robustness, capacity, range but also the price to be paid)

Multiple antennas in other wireless systems

• Multi-antennas in eHSPA

• Multi-antennas in mobile WiMAX

Pre-requisites:

To gain the most from the LTE Multiple Antenna, MIMO Techniques training course, a general knowledge of the architecture, terminology and radio interface realisations used in the LTE E-UTRAN, including OFDM/OFDMA, is recommended.

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