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LTE Physical Layer
CONTENTS
The course describes the physical layer (layer 1) aspects of the LTE (E-UTRA) radio interface. Downlink and uplink control channels for synchronization, scheduling, hybrid-ARQ operation and feedback signalling are described in detail. The full processing chain "from IP-packet to radio wave" is covered (including also layer 2 functions). Physical layer procedures such as cell search, random access, scheduling and hybrid-ARQ are described.
The course also includes a chapter on the evolution of the LTE physical layer standard (Release-10 to Release-13) for features such as carrier aggregation, enhanced MIMO and dual connectivity. Note: the course does not cover the TDD option for LTE.
PREREQUISITES
Basic knowledge regarding the architecture, terminology and modes of operation of the LTE radio access network is highly recommended. Knowledge about UMTS High Speed Packet Access concepts is useful but not mandatory.
LTE Overview
Evolved Packet System network architecture
Summary of radio techniques used in LTE
Current status of the LTE/LTE-A standard
LTE Protocol Architecture
Logical, transport and physical channels and their relation to the radio interface protocol stack
Overview of RRC signalling and layer 2 functions relevant for proper layer 1 operation
OFDM & MIMO in LTE
Overview of OFDM transmission: subcarriers, OFDM symbols, cyclic prefix, DFT processing
LTE resource definitions: Resource Elements, RE Groups, Control Channel Elements, Resource Blocks
Multi-antenna transmission basics
LTE transmission modes
LTE radio frame and subframe structure (mapping of control channels, data and reference signals)
Layer 1 Information Processing
Channel coding and rate matching
Scrambling and modulation
Layer mapping, precoding and antenna mapping
Synchronization & Network Access
P-SS, S-SS and the Physical Cell Id.
Generation of pseudo-random sequences
PBCH and system information
RACH and the Random Access procedure
Coding and mapping of the PRACH
Downlink Transmission Procedures
Downlink control procedures on PCFICH and PDCCH
Coding and mapping of the PCFICH and PDCCH
Blind decoding of control channels in the UE: search spaces, aggregation levels and PDCCH formats
Usage of different DCI contents
Resource allocation type 0, 1 and 2
Determination of MCS and TB size
Uplink Transmission Procedures
Time-frequency mapping of the PUCCH region(s)
Control signalling procedures on PUCCH
Usage of different PUCCH/UCI formats
Multiplexing UCI on PUSCH
Coding and mapping of the PUCCH & PHICH
Hybrid-ARQ and Scheduling
HARQ processes, timing, redundancy versions
CQI and PMI/RI reporting options
Scheduling request procedure
LTE Evolution
Overview of LTE release 10 to release 15
Transmission Mode 9
Non-codebook based precoding
New DM-RS reference signal mapping
New CSI-RS reference signal mapping
Carrier aggregation: basic concept
Carrier aggregation: impact on control channels
Dual connectivity: basic concept
Dual connectivity: user plane options
€495
E-Learning
max 1
LTE Signalling
CONTENTS
The course offers a solid understanding of the layer 2 (L2) and layer 3 (L3) signalling protocols as well as the physical layer (L1) defined for the evolved radio access network (E-UTRAN). The course focuses on the radio interface and the S1-interface but includes also relevant information pertaining to the Evolved Packet Core (EPC) in order to give the student a comprehensive end-to-end view of the most important signalling scenarios.
The course uses a top-down approach starting with a high level description of the overall network architecture (nodes, areas, identity numbers, bearer concepts etc). The L3 protocols are then discussed one by one in detail in a logical scenario-based sequence. After this the L2 radio interface protocol functionality is described, focusing on scheduling and reliability issues (ARQ and HARQ). An overview of the signalling and HARQ aspects of L1 is also included to give the student a complete view of the LTE protocol stack.
PREREQUISITES
General knowledge in earlier mobile systems (GSM/UMTS) is required. Knowledge of HSPA is useful due to the many similarities between LTE and HSPA. The course LTE/EPC System Overview is recommended.
Introduction
Overview of 3GPP releases
History of the E-UTRAN/EPC standardisation work
The Evolved Packet System
Network elements and interfaces
CP and UP bearers
QoS parameters (AMBR, QCI, TFT etc.)
Introduction to IMS: nodes, interfaces, procedures
NAS Protocols (EMM and ESM)
Mobility management procedures
Session management procedures
Pool areas and Tracking Area lists
Dual Registration and Idle mode Signalling Reduction (ISR)
NAS states and state transitions
NAS message formats
EPS security architecture, AKA, key derivation functions
Evolved UTRAN (incl. overview of the physical layer)
E-UTRAN channel architecture (logical, transport and physical channels)
OFDM basics, layer 1 frames, time-frequency resource mapping
PDCCH formats and layer 1 resource assignment
Radio Resource Control protocol (RRC)
System information broadcasting, paging
RRC connection establishment, RRC states
Default/signalled configuration of Signalling/Data Radio Bearers
UE capabilities, Feature Group Indicators
RRC connection reconfiguration procedure (incl. intro to ASN.1)
Measurement control, event reporting
RRC connection release and re-direction procedures
Packet Data Convergence Protocol (PDCP)
PDCP architecture and functions
RoHC header compression
PDCP reordering and retransmission during handovers
PDCP PDU formats
Radio Link Control protocol (RLC)
RLC architecture and functions
RLC modes: AM, UM and TM
ARQ operation (polling, status reporting, retransmissions and re-segmentation)
RLC PDU formats
Medium Access Control protocol (MAC)
MAC architecture and functions
Stop-and-wait HARQ
Scheduling on DL-SCH and UL-SCH
CQI reporting, BSR reporting and PHR reporting
MAC control procedures
MAC PDU formats
S1 Application Protocol (S1AP)
S1AP procedures
Establishment of logical S1-connection
UE context management in eNB
E-RAB management
S1 handover procedures
Mobility and Interworking
X2AP procedures
X2 handover preparation and execution
Overview and protocols for relay eNB operation
WiFi interworking for VoWiFi
CS interworking (CS fallback, SR-VCC)
ANDSF introduction
Signaling flows
Random access and RRC connection establishment
Initial Attach and establishment of default bearer
Dedicated bearer establishment
X2-based handover (LTE-to-LTE)
Inter-RAT handover (LTE-to-UTRAN)
€495
E-Learning
max 1
LTE System Overview
CONTENTS
The LTE System Overview course offers a comprehensive – yet easily understandable – overview of the functionality of LTE or 4G. LTE, or strictly speaking the Evolved Packet System (EPS), consists of the evolved Radio Access Network (E-UTRAN) and the Evolved Packet Core (EPC) as defined in 3GPP technical specifications. The course focuses on the network architecture, nodes and mode of operation of the entire LTE System. It accounts for interfaces, protocols and services provided by LTE, including Mobile Broadband, VoLTE and IoT. Message-level traffic cases are used throughout the course to demonstrate important functions and concepts.
PREREQUISITES
General knowledge about the architecture, terminology and modes of operation of the GSM/UMTS networks is recommended. Basic knowledge of the Internet Protocol (IP) family is useful. For required background knowledge, the Apis course 3GPP Mobile Systems Overview is recommended.
3GPP System Overview
2G and 3G networks and their relation to LTE/4G
LTE network architecture and nodes, overall mode of operation
Basic concepts: UE identities, PDN Connection, EPS Bearers, Quality of Service, etc.
Traffic case: Network Attach and PDN Connection Setup
IP Introduction
The IP protocol stack: application / transport / network / L2 & L1
IP networking: routers, switches, DNS, DHCP, NAT
Protocol Headers
Relation to LTE
E-UTRAN – the LTE RAN
OFDM basics
E-UTRAN characteristics, nodes and mode of operation
E-UTRAN interfaces
NAS – Non-Access Stratum protocols
RRC – Radio Resources Control
Layer 2: PDCP, RLC and MAC functions
Traffic case: Handover
E-UTRAN channel architecture: Logical Channels, Transport Channels and Physical Channels
UE states: Idle and Connected
Evolved Packet Core - EPC
Core Network architecture and interfaces
EPC nodes – MME, SGW, PGW, PCRF and HSS
Control and User Plane Separation - CUPS
LTE Security
Context storage and context transfer
Bearers, tunnelling and Quality of Service (QoS)
EPC Protocols: S1AP, GTP, Diameter and PFCP
Cloud and Network Function Virtualization (NFV)
PDN Connection Setup and Data Transfer (Mobile Broadband)
Networks Attach and PDN Connection Setup
GTP-U Tunnels
Access Point Name (APN)
User Plane data transfer from end-to-end
SIP – Session Initiation Protocol
SIP nodes and network architecture
User Agent, Proxy Server, Registrar and Location Service
SIP Identities
SIP Methods – requests and responses
SDP, RTP and RTCP
SIP Traffic Case
IMS – the IP Multimedia Subsystem and VoLTE
Multimedia over IP using SIP
IMS nodes and architecture
IP-CAN, CSCF (Call Session Control Function), HSS and AS
IMS subscriber identities – IMPI and IMPU
Basic IMS traffic cases; Registration and Invitation
PCC – Policy and Charging Control
What is Policy and Charging Control?
PCC architecture
The PCRF and the PCEF
Handling of user data / traffic using PCC
IoT in 4G
NB-IoT and LTE-M
IoT device behavior and traffic characteristics
Communication options for IoT traffic
SCEF and MTC-IWF
A quick look at 5G
Non-Stand Alone (NSA) NR and the en-gNB
Stand-Alone (SA) NR
NG-RAN and the 5GC
Three main 5G use cases: eMBB, mMTC and URLLC
€495
E-Learning
max 1
LTE/4G in an Hour
CONTENTS
This course provides a quick overview of the fourth-generation mobile technology, LTE or simply 4G. It focuses on establishing important technical concepts and terms, as well as putting LTE/4G into context by relating it to use cases and current technological trends.
This condensed course is the perfect way to quickly understand what LTE/4G is and what it is used for, regardless of your end goal. Perhaps you are aiming for an expert level of knowledge, and this is your first steppingstone, or you just want to get a broad understanding of what LTE/4G is all about.
LTE/4G in an Hour provides enough foundation to be able to navigate the technical terms used to discuss LTE/4G networks. It gives you the framework necessary to formulate relevant questions and understand how the major puzzle pieces of LTE/4G fit together.
PREREQUISITES
General technical knowledge of computing as well as experience from Tele and/or Data communication is beneficial but not necessary.
NOTE: This course is not delivered with the FoldOut methodology.
LTE/4G/EPS – System Architecture
Why 4G? How is 4G different from previous “Generations”
Network Architecture – E-UTRAN and EPC
The eNB, MME, HSS, SGW, PGW and PCRF
PDN Connections and EPS Bearers
Services in LTE/4G
Data Sessions in LTE/4G – Mobile Broadband
Voice over LTE – VoLTE
IoT in 4G
E-UTRAN – The LTE Radio Access Network
LTE Frequency Bands
Radio Challenges
Coverage vs Capacity
€95
E-Learning
max 1
SS7 Signalling in Mobile Networks
CONTENTS
The SS7 Signalling in Mobile Networks course explains and describes the world’s most widespread inter-exchange signalling system used in fixed and mobile telecommunication today: Signalling System No 7. It provides the basic ideas and structure of the SS7 protocol stack. Different aspects of various signalling protocols and signalling applications in the telecommunications world are covered. There are a few detailed examples from both mobile and fixed networks.
The course focus is on ITU SS7 and GSM/UMTS core network protocols that are based on SS7 system. The participants will also gain a general understanding on how to interpret log files and traces taken from live networks.
PREREQUISITES
General telecom and basic signalling knowledge is recommended. For background knowledge, we recommend the Apis’ course 3GPP Mobile Systems Overview.
SS7 Introduction
The overview of the SS7 system
The definition and structure of the SS7 signalling network: SP, STP, SL, LS, etc.
The logical division of SS7: MTP and User Parts
Use of SS7 protocol in 2G and 3G mobile networks and fixed networks
Overview of various SS7 protocols
MTP - Message Transfer Part
The functions of the different MTP levels
The structure and functions of MTP signal units, signalling link states and link management functions
MTP 3 message handling – addressing, routing, load sharing, and distribution
The overview of Signalling Network Management and Testing functions
ISUP - ISDN User Part
Use and functions of ISUP in PSTN, ISDN, and mobile networks
Various ISUP signalling procedures: call handling, circuit management, etc.
ISUP messages and their structure
SCCP - Signalling Connection Control Part
SCCP functions and applications
SCCP signalling modes: connectionless and connection oriented
SCCP addresses and their usage in 3GPP networks
SCCP messages and their structure
TCAP - Transaction Capabilities Application Part
TCAP functions and applications
Functions of TCAP component and transaction sub-layer
TCAP messages and their structure
MAP - Mobile Application Part
GSM/UMTS MAP interfaces and operations
Overview of MAP signalling scenarios for mobility, call handling, supplementary services management, recovery, etc.
Dialog portion functions
Traffic case
Detailed analysis of a mobile terminating call scenario with focus on MTP, SCCP, ISUP, TCAP, and MAP messages and their parameters
CAMEL Application Part
An introduction to Intelligent Networks nodes and functions with CAMEL as an example
Overview of IN call triggers and CAMEL subscription information records
Overview of basic CAP operations.
SS7 over ATM
Overview of SAAL-NNI protocols, their functions, and message formats
Example SSCF and SSCOP procedures
SS7 over IP
Overview of SS7-over-IP interfaces, protocols, and emulation options
Functions and messages of SCTP protocol, example SCTP packet flow
Overview of M3UA functions and messages
M3UA addressing with routing keys and routing contexts
Example M3UA signaling scenarios for establishment of an association, user data transfer, and signaling network management.
€495
E-Learning
max 1
4G and 5G Interworking
CONTENTS
This course presents the interconnection and interworking procedures between 4G Evolved Packet System and 5G System, as specified in the 3GPP standards.
The course focuses on the deployment options, UE capabilities, network features, plus procedures for idle and connected mode device mobility and service continuity in a multi-access environment with 4G/5G core networks and possible inter-RAT dual connectivity scenarios.
PREREQUISITES
Technical knowledge of the architecture and procedures in the 4G and 5G systems is necessary.
Attending Apis “LTE System Overview” and “5G System Overview” courses or having the equivalent knowledge will allow the participants to benefit fully from the course.
Note: This course is not delivered with the FoldOut methodology.
Network Architecture
Brief overview of the 4G and 5G System architecture.
Overview of deployment options for 4G and 5G core networks.
Overview of deployment options for connecting 4G/5G radio to 4G/5G core networks.
Brief overview of the IMS functionalities.
Protocol used for communication on various interfaces within 4G/5G core networks, towards RAN, and to/inside IMS network elements.
Overview of idle and connected mode mobility procedures for UEs moving between 2G/3G/4G/5G radio and core network.
Overview of various possibilities to handle IMS signaling and media between 4G/5G RAN and core network.
Data connectivity: PDN Connections and EPS Bearers in 4G, PDU Sessions and QoS Flows in 5G.
Interworking: Core Network
Deployment options for HSS/UDM/UDR.
UE idle mode mobility procedures between 2G, 3G, 4G, and 5G.
UE connected mode mobility procedures between 2G, 3G, 4G, and 5G.
Handling of data connections in idle/connected mode mobility procedures.
PDN Connection/PDU Session establishment aspects: CN domain selection, redirection, etc.
Single and dual registration mode UEs.
Interworking with and without N26 interfaces between 4G and 5G core networks.
RAT Fallback and EPS Fallback for IMS sessions.
Handling of Terminating Access Domain Selection for MT IMS calls.
SMS transport options over 4G, 5G, and IMS over 4G or 5G.
ANDSP and URSP data connections.
Comparison of optimizations and data transfer options for IoT devices.
Interworking: Access Network
5G Access Network options: NR, E-UTRA, Wi-Fi, Fixed Access.
Various intra-/inter-RAT Dual Connectivity options.
System Information parameters and UE radio capabilities related to IMS and 4G/5G interworking.
RAN bases Dual Connectivity procedures.
CN-based and RAN-based User Plane splitting options.
Session transfer procedures between 3GPP and non-3GPP access, eg: Wi-Fi to/from 5G NR.
RAN procedures for Dual Connectivity handling: Secondary Node handling, handover procedures.
Unified Access Control in 5G.
€380
E-Learning
max 1
4G and 5G Interworking in an Hour
CONTENTS
This course presents the technical overview of interconnection options and interworking procedures between 4G Evolved Packet System and 5G System, as specified in the 3GPP standards.
The course focuses on the deployment options, network features and procedures for idle and connected mode device mobility and service continuity in a multi-access environment with 4G/5G core networks and possible inter-RAT dual connectivity scenarios.
PREREQUISITES
Technical knowledge of the architecture and procedures in the 4G and 5G systems is necessary.
Attending Apis “LTE System Overview” and “5G System Overview” courses or having the equivalent knowledge will allow the participants to benefit fully from the course.
NOTE: This course is not delivered with the FoldOut methodology.
Network Architecture
High-level network architecture for 4G and 5G interworking
Terminology for UE connections to Packet Data Networks in 2G, 3G, 4G and 5G
4G and 5G UE core network identities
Overview of inter-system procedures for UE
5GC – EPC Interworking Architecture
Interworking of 4G and 5G Subscription Databases and HSS – UDM Interactions
Interworking: Core Network
Overview of idle mode mobility procedures between 2G, 3G, 4G and 5G
UE operation mode and N26 interface
Single and dual registration modes in EPC and 5GC
Use of GUTIs
Overview of connected mode mobility procedures between 2G, 3G, 4G and 5G
Interworking procedures with and without N26 interface
Parameters related to data connections handling and inter-system session continuity
Glimpse at IMS specific procedures: RAT fallback and EPS fallback
Interworking: Access Network
UE capabilities and RFSP
UE radio capabilities handling in EPC and 5GC, capability identifiers for RACS
UE connecting to ng-/eNB: system information parameters and CN selection
Dual Connectivity: introduction and overview of Dual Connectivity procedures
Interworking with Wi-Fi Access
PDU session transfers between different access types (3GPP and Wi-Fi)
Access Network Discovery and Selection Policy (ANDSP)
Overview of PS-to-CS SRVCC from 5G NR to 3G UTRA FDD
€95
E-Learning
max 1
5G Core Network Architecture
CONTENTS:
This course presents the 5G System (5GS) as defined by 3GPP, focusing on the functionalities of the 5G core (5GC) network. The relevant basics of NG-RAN are also covered. Roles of the Network Functions (NFs) as specified in the 3GPP standards are discussed, including the interactions both within the 5GC and between the 5GC and the NG-RAN, the 5GC and the external AF for Service Influencing and the 5GC and the EPC for 4G ↔ 5G Interworking.
The course explains the challenges the 5GS faces from the huge variety of services it is expected to cater to, and presents the new network features that enable the 5GS to satisfy the various service requirements in an optimal and cost-efficient way: Service Based Architecture approach with specialized NFs, Network Slicing, PDU Sessions with multiple PDU Session Anchors, hosting services closer to the user, traffic influencing from external AFs, and the 5G PCC model used to enforce service-specific subscription and traffic handling rules. The course presents how the 5GC handles the access to services by different types of UEs. It covers the 5G Registration and PDU Session Establishment traffic cases, User Plane resources definitions and handling, UE mobility handling, and the five basic 5G use cases (eMBB – including Vo5G, MIoT/mMTC, URLLC, V2X and HMTC).
PREREQUISITES:
Technical knowledge of the EPS system is crucial – the 5G features are discussed in relation to the existing 4G ones. To facilitate following the course we also recommend Apis' “5G System Overview” for introductory knowledge on 5G.
5G System overview
Rationale behind the 5G definitions: support for various services and applications
Requirements for the 5GS
Service Based Architecture model for the 5GC
Introduction of the 5GC NFs: AMF, SMF, UPF, UDR, UDM, AUSF, NEF, PCF, NSSF, NRF, UCMF, BSF, NSSAAF, NSACF, UPF and other 5GC network elements: SCP, SEPP
5GS Reference Points, including roaming scenarios (LBO and HR options)
UE identities in 5G: SUPI, SUCI, GPSI, PEI, etc.
Service Based Architecture (SBA)
Definitions of Service Based Interface, Network Function (NF), NF Service, Service Producer and Service Consumer
NF Registration, Discovery and Selection procedures
Inter-operator interconnect border functionalities: SEPP, IPUPS
SBA Security: Access Tokens and the role of the NRF
Protocol on the SBI: http/2
Network Slicing
Definition of a Network Slice
Identifiers of Network Slices: NSI Id, NSSAI, S-NSAAI
NFV as a tool to implement Network Slicing
Rules and mechanisms for allocating a Network Slice for a UE: slice-specific information used at 5G Registration and PDU Session Setup
Main 5G use cases (eMBB, MIoT, URLLC, V2X, HMTC) realized as separate Network Slices
Network Slice as a product: Private Networks
5G Registration procedure
Definition of types of Registration procedures: Initial, Mobility Update, Periodic Update
Definition of a UE Registration Area
Signaling flow with basic parameters for Access and Mobility enforcement, AF selection, Network Slice selection and creation of relevant UE contexts
Negotiation of service-specific features and capabilities at Registration: MICO mode, LADN, UE Reachability, Mobility Patterns, Mobility Restrictions
Access and Mobility NAS Protocol on N1: 5GMM
Policy and Charging Control (PCC) overview
Definition of PCC
5G requirements on PCC
Comparison of the PCF vs the 4G PCRF
Access and Mobility handling for a UE using AM Policy Associations
QoS handling for PDU Sessions using SM Policy Associations and N4 Sessions
Policy influencing from external AFs
User Plane resources in 5G
Definition of a PDU Session
Signaling flow with basic parameters for AF selection, session QoS and routing enforcement and creation of relevant UE contexts
Definitions of Service Data Flows, QoS Flows and their relationships to PDU Sessions, Data Radio Bearers and N3 Tunnels
Definitions of QoS Rules, QoS Profiles, PCC Rules, SDF Templates
Routing-specific definitions in the 5GC: PDU Session Anchors (PSAs), UPF chaining, PDU Sessions with Multiple PDU Session Anchors, User Plane splitting, Multi-Access Edge Computing (MEC), Local Area Data Networks (LADN)
SMF control or UPF over the N4 interface
Session Management NAS Protocol on N1: 5GSM
Protocol on N4: PFCP
Protocol on N3 and N9: GTP-U ver.1
5GC ↔ AF Interactions: Service Influencing
Mechanisms for the external AFs to control access, QoS and routing of application data over 5GS
Packet Flow Description Function (PFDF) role in defining and enforcing AF-specific traffic handling rules
Network Exposure Function (NEF) role in the interactions between 5GC and external NFs
IMS network elements as 5G AFs
Vo5G as a service within the eMBB Network Slice
5GC ↔ NG-RAN Interactions
LTE, WiFi and fixed access in the 5G ecosystem
Introduction of the network elements of the different Access Networks to the 5GC: eNB, gNB, N3IWF, TNGF, W-AGF, 5G-RG
Non-Standalone and Standalone deployment options
Definition of RRC States in 5G: RRC_Idle, RRC_Connected, RRC_Inactive
The impact of different RRC States on N2 Connection handling
Protocol on N2: NGAP
5GC ↔ EPC Interactions
N26 interface for MME ↔ AMF communication
Single- and Dual-Registration modes for the UEs
Combined EPC/5GC Network Architecture
€495
E-Learning
max 1
5G Core Network in a Day
CONTENTS
This course presents the 5G Core Network Architecture as defined in the 3GPP standards. It quickly introduces the new network features (when compared with the 4G EPC), and focuses on the Service Based Architecture (SBA) concept and on the functionalities of the 5G CN Network Functions (NF).
This condensed 5G Core Network Architecture course is intended to give a good understanding of how the 3GPP standards define the technology for a core network that is stable, secure, scalable and (relatively) cheap to deploy and maintain, and that can provide cost-efficient handling and data transfer for the huge variety of applications that the 5G networks are expected to service.
It has been designed to be covered by students within one normal working day. This course also exists as a full three-day course, and as a one-hour overview variant.
PREREQUISITES
Technical knowledge of the mobile telecom, especially the 4G LTE/EPS is strongly recommended.
NOTE: This course is not delivered with the FoldOut methodology.
Putting 5G into context
What are the requirements of the modern applications/services?
Can the 4G LTE/EPS meet these requirements?
Defining a new radio and a new core network as a way towards meeting these requirements
The ITU grouping of expected applications – the basic 5G Use Cases:
Enhanced Mobile Broadband, eMBB
Massive Internet of Things, MIoT
Ultra-Reliable and Low Latency Communication, URLLC
Vehicle-to-Anything, V2X
High Performance Machine Type Communication
5G Deployment Options
What is Dual Connectivity?
5G Dual Connectivity Deployment options:
Options 3 and 7: Non-Standalone New Radio
Option 4: Non-Standalone E-UTRA
Option 2: Standalone New Radio
In which 5G deployment options is the 5GC used?
Co-existing/Combined EPS and 5GC
Virtualization as a tool to realize the 5GC
What is virtualization?
What are the benefits of virtualization?
Virtualization techniques:
Virtual Machines
Dockers/Containers
Management and Orchestration, MANO, as a tool to manage virtual networks
5G Network Features
Network Slicing
What is a Network Slice?
What are the benefits of deploying Network Slices?
Identifiers of the Network Slices
Principles to allocate appropriate Network Slice(s) for a UE/service and the role of the Network Slice Selection Function, NSSF
Multi-access Edge Computing, MEC
What is Edge Computing?
What are the benefits of using Edge Computing?
ETSI MEC as a realization of the Edge Computing concept
5G-specific PDU Session features
Various PDU Session types (IP/Ethernet/Unstructured)
PDU Session with Multiple PDU Session Anchors, PSAs
PSA/IP address change for an active PDU Session
Service Based Architecture, SBA
Basic definitions:
Network Function, NF
Network Service, NS
Service Based Interface, SBI
Service Producer and Consumer
Communication Principles about the SBA:
NS Registration and the role of the Network Repository Function, NRF
NS Discovery and the role of the Service Communication Proxy, SECOP
Security over the SBA
5G UE
5G Subscription and the role of the Unified Data Repository, UDR
5G Identifiers and the roles of the Unified Data Management, UDM and the 5G Equipment Identity Register, 5G-EIR
Subscription Permanent Identifier, SUPI
Subscription Concealed Identifier, SUCI
5G Globally Unique Temporary UE Identity, 5G-GUTI
Generic Public Subscription Identifier, GPSI
Permanent Equipment Identifier, PEI
Capabilities of the 5G UEs and the role of the UE Radio Capability Management Function, UCMF
5G Core Network Procedures: network access and mobility
5G Registration and the role of the Access and Mobility Function, AMF
Network Access security and the role of the Authentication Server Function, AUSF
NF/Network Slice selection principles
Stateless AMFs and the role of the Unstructured Data Storage Function, UDSF
Policy Control at network access and the role of the Policy Control Function, PCF
Application Influencing of network access and the role of the Network Exposure Function, NEF
Inter-operator Control Plane security and the role of the Security Edge Protection proxy, SEPP
5G Core Network Procedures: session handling
PDU Session Establishment and the role of the Session Management Function, SMF
Session-related Policy Control and the role of the Policy Control Function, PCF
Session/UE identification and the role of the Binding Support Function, BSF
Policy Control for session management and the role of the Policy Control Function, PCF
Charging in 5G and the role of the Charging Function, CHF
SMS in 5G and the role of the SMS Function, SMSF
5G User Plane, UP
Definitions of UP-related parameters:
Packet Classification
QoS parameters
Routing rules
User Plane resource handling in the 5GC and the role of the User Plane Function, UPF
User Plane resource handling outside the 5GC, in the:
gNB
YOU
Inter-operator User Plane security and the role of the Inter-PLMN User Plane Security, IPUPS
€380
E-Learning
max 1
5G Core Network in an Hour
CONTENTS
This course provides a condensed overview of the 5G Core Network as defined in the 3GPP standards. It is intended to give a quick and concise summary of improvements and new concepts when comparing with the 4G EPC.
“5G Core Network in an Hour” provides a birds-eye view of the topic, focusing on the principles of the Service Based Architecture design and on the new network features intended to facilitate handling of the modern services, with high demands on the transport network resource guarantees.
It has been designed to be fully covered by students within one hour. This course also has a one day and a full three-day version.
PREREQUISITES
Technical knowledge of the mobile telecom, especially the 4G LTE/EPS is strongly recommended.
NOTE: This course is not delivered with the FoldOut methodology.
Rationale behind defining a new system: why not LTE?
Shortages of the LTE
Modern day application/service requirements
5G Use Cases
Enhanced Mobile Broadband, eMBB
Massive Internet of Things, MIoT
Ultra-Reliable and Low Latency Communication, URLLC
Vehicle-to-Anything, V2X
High Performance Machine Type Communication
5G Deployment Options
5G Dual Connectivity Deployment options:
Options 3 and 7: Non-Standalone New Radio
Option 4: Non-Standalone E-UTRA
Option 2: Standalone New Radio
Co-existing/Combined EPS and 5GC
Service Based Architecture, SBA
The SBA Design
Communication Principles about the SBA
Reference Points
Security on the SBA
Cloud-native approach to the SBA design:
NF Virtualization
Deployment options: Virtual Machines/Containers
5G Core Network Features
Network Slicing
What is a Network Slice?
What are the benefits of deploying Network Slices?
Identifiers for Network Slices
Principles to allocate appropriate Network Slice(s) for a UE/service and the role of the Network Slice Selection Function, NSSF
Multi-access Edge Computing, MEC
What is Edge Computing?
What are the benefits of using Edge Computing?
Resource Definitions for 5G
PDU Sessions:
PDU Session with Multiple PDU Session Anchors, PSAs
PSA/IP address change for an active PDU Session
Local Area Data Networks, LADN
QoS Flows
Service Influencing
AF as an external source of service-specific data handling
Influencing of QoS, routing and charging in 5G
Information exchange between an external AF and the 5GC:
Subscription Dates
Policy Rules
Event Monitoring
Analytics
Policy Control: Access management, Mobility Management, QoS, routing and charging rules
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