5G RAN SA Optimization

5G RAN SA Optimization will offer delegates a good presentation and deep understanding on the optimization process, including signaling messages and procedures for 5G NR RAN SA scenario

Aimed At

Course Review

Why Choose this Course

You will learn

Course Outline

Training Format

FAQ's

Customer Tailored

We can tailor the included topics,tech level,and duration of this course right to your team’s technical requirements and needs. - MCNS offers courses to companies, institutions, departments etc and not to individuals as per open courses.

Aimed At

5G RAN SA Optimization it is considered to be a valuable companion and expertise topic mainly for Radio Network Planners and Radio Network Optimizers, technical professionals, RAN engineers, RF engineers whose daily job is to plan and optimize the network performance. It is considered also to be valuable for 5G System Architects, 3GPP consultants, 5G R&D Researchers, 5G System Analysts and 5G network consultants, contributing into further insight to the 5G SA technology’s potentials and performance analysis requirements for services, optional feature enhancements and general E2E performance in the pathway towards 6G.

Prerequisites: Those wishing to take this course should have a very good and solid understanding of 5G NR air interface, 5G NR RAN protocols with relevant signaling flows and 5G NR SA Operational Procedures.

Course Review

This 5G training course leads the audience into a deep dive towards 5G Stand Alone (SA) optimization procedures. Course content is split into four main categories, i.e. 5G NR accessibility/connection optimization, service retainability optimization, throughput optimization and mobility optimization. Participants will be able to study or review the 5G SA RAN signaling flows with extensive analysis, based on log files extracts with intuitive exercises. They will exploit the overall idle mode behavior, accessibility/connection setup, service setup and release, mobility as well as throughput performance. This course will also discuss in details the related protocol layer configuration parameters as well as the corresponding proposed KPIs either from network perspective or from drive test analysis perspective. Finally it is worth mentioning that this course will be also supported with trace log file analysis and exercises.

Course Benefits for individuals (Professionals)

Understanding 5G SA RAN optimization procedures in conjunction with relevant signaling flows and procedures
Gain a competitive advantage by developing a greater understanding of 5G NR SA Log Analysis for service integrity, throughput, accessibility and mobility performance optimization
Explore the 5G NR SA signaling flows from procedural perspective
Dive into 5G SA NR sector RACH procedures, DL and UL data operation, and beam management
Delegates will have an opportunity to explore the topic by industry expert driven content

Course Benefits for your Organization

Equip organization engineers with the necessary knowledge to accomplish the most difficult and complex tasks related to 5G NR SA RAN optimization and troubleshooting
Keep ahead of competitors in offering well planned and high quality customers’ 5G services (which could be justified by proper benchmarking analysis)
Prepare for future network expansions and quality performance optimization
Enhance your team’s technical skills and understanding of 5G NR SA Log Analysis and optimization processes
Real world case studies and scenarios are used to ensure delegates can practically apply their knowledge

You will learn

The key points you will learn through this course

5G SA Network requirements

5G SA Connectivity Procedures

5G SA Service retainability Optimization

5G SA Service throughput Optimization

5G NSA mobility optimization

Course Outline

A short brief of your program details & schedule

5G SA Architecture review

3GPP standards for 5G Network
3GPP Release 15 phase I and phase II overview
3GPP Release 16 overview
5G NG Architectures
5GC architecture
5G NR SA option 2 review

5G NR requirements review

Numerology and vendor licenses
Frequency bands and Channel Bandwidth support
Licensed TDD or FDD – vendor specific
5G NR TDD patterns and special slots
LTE TDD configuration
MIMO and mMIMO antenna panels
UL/DL spatial multiplexing supported layers – vendor specific
FR1 supported Digital Beamforming & number of beams
FR2 supported Analog/Hybrid Beamforming
Vendor specific SU-MIMO or MU-MIMO
Capacity – RRC connected user licenses
Cell peak throughput supported (Baseband unit licenses)
5G NR FR1 carrier aggregation support
5G NR FR2 carrier aggregation support

5G SA idle mode requirements

NR UE measurements (SSB and CSI-RS)
Idle mode behavior review
Cell search procedure
SSB synchronization
SSB Detection Probability vs. SINR
MIB & CORESET0 detection probabilty vs. SINR
SSB Coverage improvements
SIB1 PDSCH detection analysis and optimization
Initial Cell Selection optimization
SSB Parameter check
Initial Cell Reselection optimization
Parameter check (Priority, Inter RAT, etc)
SA Optional Features
Trace log analysis presentation

5G SA initial connectivity optimization

5G NR SA accessibility call flow analysis
5G NR SA RRC connection establishment success rate (KPI)
5G NR SA authentication and security analysis
5G NR Bearer establishment KPI
5G DSS with practical deployments and constraints
5G NR SA call flow and failure analysis
Trace log analysis presentation

5G SA NR RACH accessibility optimization

NR RACH parameters analysis
5G Access common issues
5G SA gNB RACH failure analysis
5G SA gNB RACH KPI analysis
Random Access successful probability performance analysis
msg1 Detection probability vs. SINR
msg1 preamble accessibility vs. Cell capacity
msg2 Detection probability vs. SINR
msg3 Detection probability vs. SINR
msg4 Detection probability vs. SINR
RACH preamble pattern vs. Cell range
Random Access coverage improvements
TDD frame structure optimization
TDD special slot vs. Cell range
NR RACH successful probability estimation vs. cell range and users
NR RACH performance excel calculator exercises

5G SA UE context release Analysis

Common Reasons for abnormal service release
NR MAC parameter description
MAC T304 timer failure analysis and optimization
NR RLC parameter description
RLC failure and parameters optimization
5G Radio connection supervision (RCS) in 3GPP
Physical layer RCS parameters and optimization
5G NR coverage failure due to A2 event
5G SA release signaling flow analysis
5G SA release KPIs
Trace log analysis with examples

5G SA NR parameter analysis

NR SDAP parameters and QoS
NR PDCP parameters optimization
NR PDCCH parameter optimization
NR PDSCH parameter optimization
NR PUCCH parameter optimization
NR PUSCH parameter optimization
NR CSI-RS, DMRS and PTRS parameter configuration and optimization
Trace log file analysis
Excel calculator with parameter configuration vs. throughput examples

5G NR SA throughput estimations

Factors & Prerequisites to reach max 5G Throughput
Maximum NR cell throughput estimation (excel file)
Link Adaptation and scheduler performance
Time / frequency scheduling parameters
NR RB Throughput vs. SINR (Vendor specific curves)
Practical Drive Test analysis
5G NR average Throughput Calculation (excel file)
5G NR cell edge user maximum throughput estimation (excel file)
Throughput estimation from Logfile analysis
RLC MAC Throughput KPIs
PDCP throughput and data volume KPIs

5G NR SA low throughput troubleshooting

Troubleshoot low DL/UL NR throughput
Number of Grant and RB Troubleshooting
Low MCS Troubleshooting
High IBLER Troubleshooting
Low rank Troubleshooting
5G SA Carrier Aggregation optimization
Cross-Link Interference detection and solution (TDD frames optimization)
DL/UL unbalance
UE power saturated
Troubleshoot NR interference
Check NR FDD/TDD frequency planning
TDD Adjacent Channel Interference
NR to NR & NR to LTE TDD frame matching
NR hotspot interference
Trace log file analysis

NSA mobility planning

SA A2, A3, A5 and B1/B2 events
SA intra-frequency and inter-frequency handover KPIs
5G mobility failure analysis
Trace log analysis with examples

SA beam management procedures

SA SSB beam sweeping and beam detection
SA beam measurement failure analysis
SA beam determination and selection
SA beam switching failure analysis

Training Format

Instructor-Led Training

On-Site Classroom: 3 days

Web delivered (Virtual): 3 days

Excellent and descriptive course material (pdf file) will be provided

FAQ's

What are the differences between LTE and 5G SU-MIMO?

There are three major differences between LTE SU-MIMO and 5G SU-MIMO which are the beam width, the number of layers and the beamforming. In LTE the beam’s beam width is wide for sector coverage, propagating in entire angle of the sector while in 5G NR, beams are narrower and the beam width depends on the number of antenna sub-arrays and antenna elements per sub-array, i.e. typical massive MIMO using 64T64R or 128T128R antenna arrays. Regarding the layers, a large number of layers can be added to a single user where according to theory the number of layers depend on number of sub-arrays and transmitters in base-station side i.e. for mMIMO AAU 64T64R maximum 64 layers can be added. Practically speaking this is not feasible as current mMIMO algorithms cannot reduce co-channel interference of such large number of transmission layers. Current 5G systems only supports maximum 16 layers or 32 layers but in SU-MIMO those layers are not supported due to UE limitations. Currently UEs in sub 6GHz bands support only 2T4R or 4T4R antenna structures and in mmWave bands support 8T8R or 16T16R, restricting the feasible SMUX layer down to 2, 4, 8 or 16 layers for a single user. Finally in 5G SU-MIMO the layers are added into different beams in a beamforming transmission scenario. SU-MIMO is mostly used in Digital beamforming approach.

Is mMIMO feasible in 5G FDD sub 6GHz bands?

3GPP Release 12, 13 and 14 allows for FDD LTE systems to use MIMO and FD-MIMO. FD-MIMO is one MIMO implementations allowing antenna systems to form a beam in both horizontal and vertical direction and provide coverage in 3D space. It is close to mMIMO but it lacks the complexity and the number of available SMUX layers of mMIMO. Hence if we say that FD-MIMO is “massive”, one could then say that the answer to this question is affirmative. The only problem when building mMIMO solutions to 5G FDD bands is the expected latency and delay on the channel estimation. This delay can be a big problem when considering the fact that the channel coherence time is quite limited, generally saying that the radio channel is constant over only a limited period of time. This poses restrictions on synchronization and channel estimation since the channel state information will not be any longer valid and the pilot/channel assessment process has to be repeated introducing pilot reference signal overhead.

What is the content of a 5G SA Random Access Response (RAR) MAC signaling message?

A MAC RAR consists of three major fields, the Timing Advance Command, the UL Grant for next message 3 and the Temporary C-RNTI to be used on next steps.

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5G RAN SA Optimization

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