5G NR Dynamic Spectrum Sharing (DSS) Course by MCNS

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 NR Dynamic Spectrum Sharing (DSS) is mainly aimed at a technical audience. It is suitable for technical professionals, RAN operators, Radio planning engineers, RAN optimization engineers, Research Institutes, defense sector, who currently are or will be involved in DSS deployment with emphasis on capacity estimations and optimization.

Prerequisites: Those wishing to take this course should have a good and solid understanding of 5G and LTE technology, with emphasis on 5G NR/LTE air interface.

Course Review

This 5G training course leads the audience into the Dynamic Spectrum Sharing (DSS) technology presentation and understanding. It introduces the audience into the LTE MBSFN solution, explains the rate matching principles for the LTE/NR coexistence and gives a quick reference to expected overhead of the shared YL and DL channels. The course is supported by proper trace log files analysis and an excel dimensioning (calculator) for practical exercises and case studies.

Course Benefits for individuals (Professionals)

Understanding DSS requirements and potentials
Explore DSS coverage and capacity principles
Understand DSS principles and signaling flows
Learn how to plan for DSS cell edge users as well as average cell performance conditions
Practice on capacity and coverage planning tools (e. excel calculators examples) through practical exercises

Course Benefits for your Organization

Equip organization engineers with the necessary knowledge to accomplish difficult and complex tasks related to 5G/LTE DSS technology.
Keep ahead of competitors in offering well planned and high throughput and quality customers’ DSS services
Identify new revenue streams that can be enabled through 5G/LTE DSS
Prepare for future network expansions and quality performance optimization

You will learn

The key points you will learn through this course

Dynamic Spectrum Sharing (DSS) overview

DSS technical solution

DSS Radio Planning and Optimizing

Course Outline

A short brief of your program details & schedule

5G/LTETechnology Review

LTE Air interface overview
5G NR Air interface overview
5G NR FR1 and FR2 bands
LTE and 5G NR Scalable numerology
LTE/NR frame structure
FDD – TDD modes
LTE signals and channels review
NR signals and channels review
Non Stand-Alone (NSA) architecture

Introduction to Spectrum Sharing

Why Dynamic Spectrum Sharing (DSS)?
Comparison among spectrum sharing and spectrum refarming
DSS principles in NSA and SA architectures
DSS network requirements
DSS user terminal requirements
DSS over FDD and TDD modes

DSS technical implementation

DSS technique implemented over MBSFN LTE frames
LTE MBSFN configuration and parameters
NR implementation over MBSFN frames
NR implementation over non-MBSFN frames
NR rate matching
NR DSS PUCCH implementation Vendor (equipment) UL requirements
DSS for SA and NSA
Trace log file analysis and parameter review

DSS deployment solution

Discuss DSS solution for SA
Discuss DSS solution for NSA
DSS parameters and configuration
DSS band selection
DSS interference management
DSS optional (vendor specific) features
Explain DSS mobility consideration
Review DSS Radio Link Failure

DSS planning

DSS band selection and path-loss estimation
DSS Coverage estimation (band specific)
Explain MBSFN DSS overhead estimation for NR sector
Explain MBSFN DSS overhead estimation for LTE sector
Explain NR PDCCH, PDSCH scheduling (optional vendor specific)
LTE Capacity degradation due to DSS NR resources
NR sector capacity (throughput) estimation
Exercise using excel spread-sheet capacity and coverage estimation

DSS Signaling Analysis

LTE attach procedure for NSA ENDC DSS setup
MBSFN based DSS signaling procedures for ENDC setup
Non-MBSFN based DSS signaling procedures for ENDC setup
Optimizing ENDC DSS performance
Trace log file analysis and parameter review

Training Format

Instructor-Led Training

On-Site Classroom: 2days

Web delivered (Virtual): 2 days

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

FAQ's

Why using Dynamic Spectrum Sharing (DSS)?

The 5G vision aims to develop one network able to support multiple and widely-different use cases, i.e. enhanced mobile broadband (eMBB), massive machine-type communications (mMTC), and ultra-reliable ultra-low latency communications (URLLC). These use cases require spectrum across the low bands (carrier frequency < 1 GHz) for wide network area coverage, mid bands for increased capacity and high bands for extreme capacity. However, most 5G networks only use mid and high bands, and 5G services will struggle to reach urban centers and go deep inside buildings without the low bands. Nowadays 5G frequency range 1 (FR1) has been intentionally introduced in many markets globally, using the 3.5 GHz band, although there are also deployments using lower bands like 700 MHz. Some operators have been able to close legacy networks and re-farm those frequencies to LTE, but many others have kept 2G and 3G running to maintain legacy devices and provide circuit-switched voice support. As a result, many operators do not have spectrum available to deploy 5G on those low bands. Re-farming LTE to new radio (NR) is not an option because most of the traffic will continue to run on LTE for the next few years. DSS addresses this challenge by enabling operators to introduce 5G on existing 4G bands without re-farming carriers, and with minimal impact on existing services.

What is finally DSS Dynamic Spectrum Sharing (DSS)?

Backward compatibility is at the core of the DSS concept. Today, there are many LTE devices in use, making it impossible for operators to modify the LTE transmission. The sharing of LTE and NR must be transparent to LTE devices and NR transmission must adapt to coexist with LTE. DSS allows LTE and NR coexistence in the same carrier using spectrum sharing. LTE and NR devices have access to the entire bandwidth. Resources are shared dynamically between the two radios based on traffic demand in the time and frequency domains. Mobile operators can therefore adapt to traffic demand. In addition, they can roll out DSS through a software upgrade. These advantages make DSS a great opportunity for mobile operators, even though it increases scheduling complexity because it requires rapid coordination between the two technologies

How does LTE and 5G coexist in DSS Dynamic Spectrum Sharing (DSS)?

LTE transmission uses 15-kHz subcarrier spacing, while NR can use 15- or 30-kHz subcarrier spacing. Initial DSS deployments use 15-kHz subcarrier spacing. NR becomes orthogonal with LTE when using 15-kHz subcarrier spacing because it uses the same time and frequency grid. LTE and NR still share the same time and frequency resources from the network perspective, requiring user equipment (UE) capable of decoding the combined LTE and NR transmission. Legacy LTE devices must decode the LTE signal just as in the traditional LTE network, and NR devices must decode the NR signal. A device that supports both needs the capability to decode both signals simultaneously.

Why 5G in DSS is not implemented in 30 kHz sub-carrier spacing?

When using 30-kHz subcarrier spacing, NR will occupy twice as much bandwidth in the frequency domain, but half of the duration in the time domain. Mixed numerology causes interference, breaking the orthogonality. Using a guard band to separate assignments in the frequency domain avoids such interference. Time multiplexing also achieves this goal by separating the two transmissions in the time domain

How is LTE and 5G implemented in DSS Dynamic Spectrum Sharing (DSS)?

DSS physical-layer implementation can use two techniques: rate matching and multicast broadcast single frequency network (MBSFN) subframe. The rate-matching technique involves resource elements that carry the LTE always-on signals. Rate matching is the common technique for NR data transmission using 15-kHz subcarrier spacing. Using MBSFN subframes is common for NR synchronization signal block (SSB) transmission and NR data transmission using 30-kHz subcarrier spacing. You can use this technique for other use cases as well, such as transmitting periodic signals.

5G NR Dynamic Spectrum Sharing (DSS)