5G Air Interface Non-Standalone Operation

The 5G air interface is a key part of the 5G system which will facilitate Enhanced Mobile Broadband and Ultra Reliable Low Latency Communication, as well as the support of Massive IoT. The course focuses on the initial NSA (Non-Standalone) operation, also known as EN-DC. In so doing it identifies the 5G NR (New Radio) air interface, from the physical layer operation to higher layer support of services. In addition, modification to existing LTE procedures are also examined, as well as NSA based mobility.
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Section 1 - 5G New Radio
Section 2 - 5G Physical Layer Transmission and Reception
Section 3 - 5G Massive MIMO and Beamforming
Section 4 - 5G Physical Layer Details
Section 5 - 5G Layer 2 and Layer 3
Section 6 - 5G EN-DC Operation
Section 7 - 5G Scheduling
Section 8 - 5G Mobility with EPC

Topic areas covered include:

  • 5G Phases:
    • NR (New Radio) Phases.
    • 5G NR Roadmap.
  • EN-DC Architecture:
    • 5G RAN Deployment Options:
      • Option 3, Option 3x, Option 3a, Option 2, Option 7 and Option 4.
    • Standalone Architecture.
    • Non-Standalone Architecture.
    • EN-DC UE Protocol.
    • C-RAN for EN-DC.
  • EN-DC Bearers:
    • EN-DC Terminology:
      • MCG, SCG, PCell, PSCell. SpCell and SCell.
    • EN-DC User Plane Bearer Options.
    • SRB3.
    • MCG Split SRB in EN-DC.
  • EN-DC in the RAN:
    • EN-DC X2 Setup.
    • EN-DC Configuration Update.

Topic areas covered include:

  • 5G NR Duplexing:
    • FDD and TDD Duplexing Modes.
    • SDL (Supplementary Downlink):
    • SUL (Supplementary Uplink).
  • 5G Frequency Bands:
    • Definition of Frequency Ranges.
    • 5G NR Bands.
    • EN-DC Band Combinations.
    • Baseband Processing Combinations.
    • Harmonics and Intermodulation for EN-DC.
    • 5G Carrier Numbering.
  • 5G Waveform: CP-OFDM and DFT-s-OFDM:
    • OFDM Subcarriers.
    • Orthogonal Frequency Division Multiplexing.
    • Cyclic Prefix.
  • NR Numerology and Frame Structure:
    • Numerology.
    • Slot Length.
    • Frame Structure.
    • NR Slots.
    • 5G NR Time Unit.
    • NR Cyclic Prefix.
    • NR Physical Resource Block:
      • PRB Options.
    • Resource Grid:
      • Resource Element.
    • 5G NR Transmitted Signal.
    • Slot Format Configuration.
    • Uplink/Timing.
  • Channel Bandwidth:
    • Maximum Transmission Bandwidth.
    • Carrier BWP (Bandwidth Part):
      • PRB and CRB.
      • Point A Definition.

Topic areas covered include:

  • Why Massive MIMO?
    • Requirement for Massive MIMO:
      • Antenna Elements.
      • Antenna Arrays.
    • Increasing Capacity.
  • MIMO in 5G:
    • Summary of Transmission Path in 5G NR.
      • Codewords, Layers and Antenna Ports.
    • MIMO Spatial Multiplexing.
    • SU-MIMO vs MU-MIMO.
  • Beamforming (Massive MIMO):
    • Spatial Multiplexing vs Beamforming.
    • Creating a Beam.
    • Narrow Beams and Beam Steering.
    • Beamforming Nulls:
      • Null Beam Steering.
    • Massive MIMO Antennas.
    • MIMO in a Handset.
    • Multiple Panel Antenna.
  • NR Beam Management:
    • Beam Sweeping.
    • SS Block:
      • NR SSB, PSS, SSS, PBCH and DMRS.
    • Beam Management Reference Signals:
      • CSI-RS and SRS.
    • Transmission Configuration and Quasi Co-Location:
      • TCI, QCL and QCL Type.
    • Single and Multiple CSI-RS:
      • CRI (CSI-RS Resource Indicator).
      • PMI (Precoding Matrix Indicator).
    • Transmission Based on SRS.
    • SS Burst and Burst Set.
    • SS Block Locations.
    • SS/PBCH Block Index Indication.
    • Beam Measurement, Determination and Reporting.
  • Transmission and Ports in NR:
    • Downlink Transmission:
      • Codewords.
      • DMRS Ports.
    • Uplink Transmission.
    • NR Downlink Antenna Ports.
    • NR Uplink Antenna Ports.

Topic areas covered include:

  • NR Physical Layer Processing:
    • Key Specifications.
    • Code Block Generation:
      • Scrambling.
      • Channel Coding.
      • Rate Matching.
      • Code Block Concatenation.
    • Code Block Group:
      • NR CBG Size.
      • Codewords to Antenna Ports.
  • NR Channels:
    • Logical Channels:
      • BCCH, PCCH, CCCH, DCCH and DTCH.
    • Transport Channels:
      • BCH, DL-SCH, PCH, UL-SCH and RACH.
    • Mapping Logical Channels into Transport Channels:
      • DCI and UCI Mapping.
    • Physical Channels:
      • PBCH, PDSCH, PDCCH, PRACH, PUSCH and PUCCH.
    • Mapping Transport Channels to Physical Channels.
    • Synchronization and Reference Signals.
  • Downlink Physical Channels and Signals:
    • Downlink Synchronization Signals.
    • PSS and SSS:
      • PCI Identification.
    • Physical Broadcast Channel:
      • DMRS for BCH.
    • Physical Downlink Control Channel:
      • CORESET.
      • CORESET Configuration.
      • PDCCH for SFI.
      • PDCCH for Pre-emption.
    • Physical Downlink Shared Channel:
      • PDSCH Configuration Setup.
    • PDSCH DMRS:
      • Type A and Type B.
      • DMRS Configuration Parameters.
      • Configuration Type 1 and Configuration Type 2.
  • NR Uplink Physical Channels:
    • Physical Random Access Channel:
      • NR Preambles.
      • RACH/PRACH Configuration.
      • PRACH Configuration Index.
      • PRACH SCS.
      • Preamble Formats for NR.
    • Physical Uplink Shared Channel:
      • Configuring PUSCH.
    • Physical Uplink Control Channel:
      • PUCCH Formats.
      • PUCCH Location.
      • PUCCH Configuration.
  • Additional 5G Reference Signals:
    • CSI-RS:
      • CSI-RS Configuration.
      • ZP and NZP CSI-RS.
      • CDM Types.
      • Examples of CDM4 and FD-CDM2.
      • Periodic and Semi-Persistent CSI-RS.
      • CSI-RS Frame Location.
    • Sounding Reference Signal:
      • SRS Mapping.
      • Wideband and Sub-Band SRS.
      • SRS Usage.
    • Phase Tracking Reference Signal:
      • PTRS Location.
      • PTRS Configuration.
      • PTRS Conditions.

Topic areas covered include:

  • EN-DC Radio Resource Control:
    • RRC EN-DC Features.
    • RRC States.
    • RRC Messages:
      • MIB.
      • RRC Reconfiguration.
      • Measurement Report.
    • E-UTRA RRC for EN-DC Operation:
      • UL Information Transfer MRDC.
      • SCG Failure Information NR.
  • NR Packet Data Convergence Protocol:
    • PDCP Services.
    • PDCP Functions.
    • PDCP Profiles.
    • PDCP Protocol Data Units.
  • NR Radio Link Control:
    • Transparent Mode
    • Unacknowledged Mode.
    • Acknowledged Mode.
    • RLC Protocol Data Units
  • NR Medium Access Control:
    • MAC Services and Functions.
    • MAC Control Elements.
    • NR RNTI Identities.
    • MAC Headers.

Topic areas covered include:

  • Attaching and EN-DC Operation:
    • Initial E-UTRA Attach.
    • UE Capabilities:
      • UE NR Capability Parameters.
      • UE MR-DC Capabilities.
  • E-UTRA Measurements for EN-DC:
    • E-UTRA Measurement Configuration Options:
      • RRC Measurement Configuration.
    • Measurement Objects.
    • Report Configuration:
      • Event B1 NR.
    • LTE Events Summary.
    • Measurement Identities.
    • NR Measurement Timing Configuration:
      • SMTC.
      • MTC.
    • Identifying Suitable NR Cell.
    • Measurement Report.
  • PSCell Addition:
    • SgNB Addition Request and Request Acknowledge.
    • RRC Connection Reconfiguration.
    • Reconfiguration with Sync.
    • PSCell Split SRB.
    • PSCell Split DRB.
    • Secondary Node Release.
    • Random Access Process.
  • Radio Link Failure:
    • RLF Configuration.
    • Out-of-Sync and In-Sync.
    • Failure Report.
  • Beam Failure:
    • Beam Failure Parameters.
    • Beam Failure Detection.
    • Beam Failure Recovery.
  • Power Control:
    • Downlink Power Allocation.
    • Uplink Power Control.

Topic areas covered include:

  • NR Scheduling:
    • Downlink Control Information.
    • Search Space.
    • PDCCH Aggregation Levels.
    • Resource Allocation Type.
    • Allocation Type 0.
    • Allocation Type 1.
    • Dynamic Switch.
    • PDSCH and PUSCH Scheduling.
  • NR Downlink Resource Allocation:
    • PDSCH Time Domain Resource Allocation.
    • Table 1 and Table 2 PDSCH/PUSCH MCS.
    • Transport Block Size.
    • Downlink Configured Scheduling.
    • Discontinuous Reception.
  • NR Uplink Resource Allocation:
    • PUSCH Time Domain Resource Allocation.
    • PUSCH MCS Index.
    • Uplink Configured Scheduling.
  • NR Feedback:
    • Buffer Status Report.
    • Power Headroom Reporting.
    • HARQ-ACK.
    • Scheduling Request.
    • Channel State Information.
    • Channel Quality Indicator.
  • EN-DC Resource Coordination:
    • Resource Coordination Signalling.
    • Coordination Resource Bitmap.

Topic areas covered include:

  • EN-DC Mobility:
    • Mobility Options.
    • NR Measurements.
  • EN-DC Change of Secondary Node:
    • Triggers.
    • Secondary Node Triggered.
    • RRC Reconfiguration.
    • Measurement Gap Configuration.
    • Handover Restriction List.
  • Inter MeNB Handover with EN-DC.

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