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5G NR Quick Reference System Architecture Flow across System PHY and Protocol Frame Structure Numerology Waveform Frequency Band BWP Synchronization Beam Management CSI Framework Channel Mapping CORESET DCI SLIV UCI PUCCH Reference Signal MAC RLC PDCP SS Block Scheduling MIB SIB RACH RRC Overview RrcReconfiguration NSA ENDC SA Initial Attach UE Capability Paging Power Control MIMO Config DL
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QuickReference - 5G NR Pre 5G Chronicles What has been done talked before the realization of 5G ? Time Table Milestones 4G to 5G Evolution 4G vs 5G Post-deployment Evolution (Cell Coverage, Test Report) Post-deployment Challenges 5G Definitions 5G Indication : upperLayerIndication 5GMM 5GSM 5QI 5G Release 16 Highlights 5G Release 17 Highlights 5G Release 18 Highlights 5WWC ATSSS Acronyms
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NOTE : In this note, I will focus mostly on NR specific RACH features, but there are many features and concept which is common for both LTE and NR I will not talk much of those common featuers and concept So for those common feature concept, refer to the note on LTE RACH even though you are intersted only in NR RACH 5G RACH in Details RACH stands for Random Access Channel It is an
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Numerology SCS (Subcarrier Spacing) in Detail Numerology in 5G NR refers to Sub Carrier Spacing (SCS) As of Release 17, there are 7 types of numberology (SCS 15, 30, 60, 120, 240, 480, 960 Khz) Even though Numerology is one of the most widely discussed item at 3GPP RAN1 meeting before NR Technical Specification is finalized, it sounds very vague to me I think I understand what it
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5G NR - Resource Grid Resource Grid The resource grid for NR is defined as follows If you just take a look at the picture, you would think it is almost identical to LTE resource grid But the physical dimmension (i e, subcarrier spacing, number of OFDM symbols within a radio frame) varies in NR depending on numerology Resource Element : This is same as LTE It is the smallest unit of the
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WiFi Quick Reference Introduction AI ML Beacon BeamForming Control Field : QoS CSMA CA Evolution Fragmentation Frame Structure Frame Structure : MAC Frame Frame Structure : PLCP (Physical Layer Convergence Protocol) Structure Frame Structure : MAC Header Structure Frame Structure : MAC Header Structure : Frame Control Field Structure Frame Structure : MAC Header Structure : Duration ID Field
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NTN NTN Architecture and Scenario The NTN architecture is designed to bridge the digital divide, enabling seamless connectivity across geographies where traditional ground-based networks are either impractical or economically unfeasible Key elements of NTN include satellites (transparent or regenerative) that serve as critical intermediaries for transmitting and managing data Transparent
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4G LTE - NB IoT NB-IoT NB-LTE stands for Narrow Band LTE For the high level description of NB-LTE and some comparative view of other technology, refer to LTE-M Category M M1 M2 page Early July in 2016 (around Jul 10), the first version of 3GPP TS documents on NB IoT were posted and I started working on note based on these documents It is very early stages for now and these notes will keep
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