CONTENTS
The course describes the physical layer design of NR in terms of OFDM numerologies, radio frames, subframes and slot configurations. The course explains the purpose of, and processing of, physical channels with particular focus on control channels. Reference signals for data demodulation, CSI measurements, and sounding are explained. Layer 1 procedures for synchronization, random access, scheduling, HARQ, measurements and beam management are described.
An overview of the NR RRC and MAC protocols is included in chapter 1 for completeness, with particular focus on the role of the RRC and MAC protocols in relation to layer 1.
PREREQUISITES
Reasonably good technical knowledge of the LTE physical layer and the LTE radio protocols is highly recommended but not compulsory.
Note: this course is not delivered with the FoldOut methodology.
NR Overview
- Summary
of radio techniques used in NR - NR
Channel Architecture - Radio
Resource Control protocol (for L1 operation) - Medium
Access Control protocol (for L1 operation) - Overview
of physical channels and signals
NR Physical Layer Design
- Spectrum
allocation for 5G - Bandwidth
adaptation and Bandwidth Parts (BWP) - OFDM
numerologies for NR - NR
radio frame and subframe structure - Slots
and slot formats - Self-contained
slots for TDD operation
Synchronization and
Initial Access
- SS/PBCH Blocks (mapping, transmission)
- Beamforming and beam sweeping
- PBCH processing and the MIB
- Common Control Resource Set 0 (CORESET #0)
- System Information Block 1
- PRACH and the random access procedure
- Initial beam selection
Control Channels
- UE-specific
CORESETs - DCI
formats for scheduling and other purposes - Coding
and mapping of PDCCH - PUCCH
coding and resource selection - DM-RS
mapping for PDCCH and PUCCH
Data Channels
- Layer
1 processing for DL-SCH and UL-SCH - DM-RS
mapping for PDSCH and PUSCH - Scheduling
and HARQ timing - Time
and frequency domain resource allocation - Beam
adjustment - Beam
failure detection and recovery
Measurements and Feedback
- ACK/NACK
signalling on PUCCH - CSI
reporting and CSI-RS configuration - SRS
configuration and SRS triggering - Other
reference signals
NR/LTE Interworking
- EN-DC
(DC between LTE and NR) - Spectrum
sharing between LTE and NR
