LTE Training

3G Network Solutions

LTE/IMS/IoT/5G Telecom Centre

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Detailed LTE Physical Layer ToC

• Motivation to LTE

• Multiple Access Technology
• LTE Evolution – Timeline and Features
• LTE Ket ParametersKey
• Technologies Adopted in LTE
• Why LTE?
• Frame Structure
• OFDMA and SC-FDMA data flow
• Uplink Downlink timibg
• FDD-TDD frame
• CP Lengths. Slots
• Resource elements/blocks
• TDD Configurations
• Special frame – DwPts, GP, UpPts
• TDD CA Rules
• Data rate in LTE
• Frame to Channels mapping
• TDD Vs FDD
• Majot Design impacts
• Frequency Bands
• Performance Comparidon
• TDD and FDD Bands
• Comparison and Differences
• Major TDD Paramaters
• OFDMA and SC-FDMA
• Downlink OFDMA
• Orthogonal Multiplexing Principle
• What is OFDMA and IFFT?
• ISI/CP and ICI
• Physical Layer Parameters for LTE
• Uplink SC-FDMA
• PAPR and Sensitivity to Non-linearity
• DFT SC-FDMA
• SC-FDMA Parameters
• DL Signals and Channels
• Sync Signals – PSS and SSS – (FDD and TDD)
• RS – Cell Specific, UE specific, MBSFC, PRS, CSI-RS
• CRS pattern analysis
• 31 length Gold Sequence
• Understanding Antenna ports
• Mapping to UL Physical Channels
• UL-SCH – PUSCH
• RACH - PRACH
• UCI- PUCCH, PUSCH
• Mapping to DL Physical Channels
• PBCH – PBCH
• Controls – CFICH, PHICH, PDCCH
• DL-SCH – PDSCH
• PCH – PDSCH
• MCH – PMCH
• PDCCH
• REG and CCE mapping to RE
• PCFICH mapping
• PHICH structure and mapping
• PHICH groups and cyclic shift
• PDCCH Search space – Common and UE-specific
• ePDCCH Procedures
• ePDCCH Assignment Procedures
• ePDCCH Localised/Distributed One/Two TB Cases
• ePDCCH Monitoring Rules
• ePDCCH Resource Mapping
• ePDCCH Starting Position
• ePDCCH SPS Validations
• ePDCCH Configuration Parameters
• Uplink Channel Mapping
• UL Ref Signals – DMRS
• Generation of RS
• Mapping of DMRS PUSCH
• PUSCH with CSI
• Mapping of DMRS PUCCH
• SRS – Generation and Mapping
• SRS Procedure
• PMCH and eMBMS
• PMCH Structure
• MBMS Region
• MBMS Services
• LTE and UMTS MBMS arcitecture
• MBMS Channels
• MBSFN, MBSFN Area
• MBMS information – SIB2, SIB13
• MCCH and MTCH positions
• L1 DL/Common Processing
• CRC Generation
• Segmentation
• enCoding – Turbo and Convolution
• RateMatching
• Concatenation
• PDSCH Processing
• PDSCH Processing steps
• Scrambling
• Modulation
• LayerMapping
• Precoding
• Resource Mapping
• PDSCH Reception/Decoding
• Tx Mode Dependence
• DCI-PDCCH
• PDCCH Control Area
• Transmission Modes
• Tx Mode 1-7
• DCI Messages
• DL Other Channels
• PBCH
• PCH,MCH
• HICH
• CFICH
• UL Channels Processing
• PUSCH Processing steps
• PUSCH Multiplexing
• UCI with PUSCH
• Transform Precoding (DFT)
• PHY Layer mapping
• HARQ Processes
• UCI in PUCCH
• PUCCH Processing
       • 1,1a,1b format’ DMRS
       • 2, 2a,2b, 4 format DMRS
• DMRS signal Generation
• SRS signalling
• CSI – CQI, PMI, RI reporting
• Apriodic CSI reporting
• Modulation
• Transport Format Selection process
• Adaptive Modulation
• EVM
• Modulation Order determination
• TB Size determination
• MiMo and Layers
• MiMo Techniques
• Layering
• Precoding and Decoding
• Role of PMI
• Modes of MiMo – Single/Multi user, Diversity
• Spatial Multiplexing – Capacity, Coverage
• Codebook based Precoding
• Singular Value decomposition’
• MiMo Feedback
• Open loop and Closed loop MiMo
• MiMo Transmission Modes
• Adaptive beamforming
• Dual Layer beamforming
• Synchronization Procedures
• UL-DL Frame Timing
• Cell search
• PSS and SSS in FDD and TDD
• PSS Signal Generation
• SSS Signal Generation
• RS Signal power/quality measurement
• RL Monitoring
• Timing Advance
• PBCH Structure and MIB/SIB reading
• Random Access Procedure
• RA introduction
• RA- Why and When
• PRACH Formats and selection
• PRACH resource Architecture
• CP and GT dimensioning
• PRACH time/frequency Structure
• RA Channel design
• PRACH Resource and PRACHConfigIndex
• PRACHconfig for TDD
• RA Preamble and Sequence Generation
• RA preamble transmission timing
• Cyclic Shift Dimensioning
• RA Preamble detection
• Collision detection
• Logical to Physical root mapping
• RACH Configuration Parameters
• Random Access Procedure
• Group A and Group B Preambles
• RAR message format
• Contention Resolution Procedure
• RA Response OR Retransmission timing
• Timing Advance and Alignment
• PUSCH Hopping
• Root/Group Hopping Patterns
• Sequence Shift Patterns (30)
• Sequence Hopping
• Hopping Procedure
• Resource Allocation
• Scheduling of UL and DL allocation DCI0 and DCI1
• Resource Grid
• Resource Block Group (RBG)
• Allocation Type 0,1,2
• HARQ Procedure
• ARQ and HARQ
• Round Trip Time
• HARQ Scheduling - Parallel
• HARQ Synch and Asynch
• HARQ Soft Combining
• Chase Combining and Incremental Redundancy
• HARQ and PHICH timing – FDD, TDD
• Tti-Bundling
• Paging (Phy Layer)
• Purpose and Protocol
• DRX, PagingCycle and nB
• Paging Frame and Paging Occasion
• UE receiving Paging
• Power Control
• Uplink Power Control
• Tx Power for PUSCH
• TPC – Transmit Power Control
• Timing for FDD/TDD Power Control
• Power Headroom
• PUCCH Power Control
• SRS Power Control
• Downlink Power Control

 

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