LTE Features & Functionality Introduction.ppt

introduce you to the different radio network functionalities in LTE. It serves as an introduction to the Radio Network Functionality modules in the Features and Functionality area and summarizes, on a high level, the functionality in the Ericsson LTE product.

1. Introduction
LTE Radio Network
Functionality
Ericsson
Academy

2. LTE Radio Network Functionality -Introduction | Ericsson Internal | , Rev | 2017-06-12 | Page 2
›Features and Functionality modules
–Idle Mode Behavior
–Radio Connection Supervision
–Scheduling and QoS
–Link Adaptation
–Power Control
–Carrier Aggregation, CoMP, Combined Cell
–Capacity Management
–Load Management
–HW, O&M, TN, Traffic, Location Management
Main Topics

3. LTE Radio Network Functionality -Introduction | Ericsson Internal | , Rev | 2017-06-12 | Page 3
Scope:
›Introduce Radio Network Functionality for further
studies in the Features and Functionality modules.
Objectives:
Describe, on an overview level:
›The concepts of Radio Network Functionality.
Scope & Objectives

4. LTE Radio Network Functionality -Introduction | Ericsson Internal | , Rev | 2017-06-12 | Page 4
Disclaimer
This material is a training document and contains simplifications.
Therefore, it must not be considered as a specification of the system.
The contents of this document are subject to revision without notice due to ongoing progress in
methodology, design and manufacturing.
Ericsson Academy shall have no liability for any error or damage of any kind resulting from the use
of this document.
This document is not intended to replace the technical documentation.
Always refer to that technical documentation during operation and maintenance.
For latest release information, please refer to Lighthouse.
© Ericsson AB 2016
This document was produced by Ericsson Academy.

5. LTE Radio Network Functionality -Introduction | Ericsson Internal | , Rev | 2017-06-12 | Page 5
?
?
?
Idle
Connected
Core
Network
?
Functions?

6. LTE Radio Network Functionality -Introduction | Ericsson Internal | , Rev | 2017-06-12 | Page 6
EPC
Optional
Basic features
Optional features
OSS HW
Basic features
Capacity licenses
Optional features
RBS HW
›Basic features
–All functionality needed for an
operational LTE network e.g.:
›RBS operating system
›Radio tx/rx
›Scheduling (Round Robin)
›Power Control
›Basic Admission Control
›Config-, SW-, Fault-and
Performance Management
›etc
›Optional features
–Extended functionality and
optimized performance e.g.:
›Proportional Fair Scheduling
›Delay Based Scheduling
›Frequency Selective
Scheduling
›Handover
›IRAT Mobility
›Dynamic GBR Admission
Control
›Dynamic QoS Modification
›MIMO
›etc
Features?

7. LTE Radio Network Functionality -Introduction | Ericsson Internal | , Rev | 2017-06-12 | Page 7
Overview

8. LTE Radio Network Functionality -Introduction | Ericsson Internal | , Rev | 2017-06-12 | Page 8
Radio Access
Network
Core Network
TEMS
OSS-RC
Mul
Mul
Mun
Other
Management
Systems
Mun
Network
Management
Environment
RBS
RBS
RBS
RBS Radio Base Station (eNB)
OSS-RC Operation Support System –Radio Core
TEMS TEMS Optimization Solution
UE
RAN Overview, Logical
Interfaces
S1S1
S1
Uu
UuX2
X2
X2
UE

9. LTE Radio Network Functionality -Introduction | Ericsson Internal | , Rev | 2017-06-12 | Page 9
LTE Radio
Network
Functionality

10. LTE Radio Network Functionality -Introduction | Ericsson Internal | , Rev | 2017-06-12 | Page 10
LTE
WCDMA
GSM
CDMA2000
IDLE
MODE
EPS Idle Mode Behavior:
PLMN Selection

11. LTE Radio Network Functionality -Introduction | Ericsson Internal | , Rev | 2017-06-12 | Page 11
›Monitor System Information
›PLMN Selection
›Cell Selection/Reselection
›Location Registration
›Monitor Paging
PLMN A
PLMN B
PLMN CMME
IDLE
MODE
TAU
Idle Mode Tasks

12. LTE Radio Network Functionality -Introduction | Ericsson Internal | , Rev | 2017-06-12 | Page 12
Disconnect
or wait?
RBS 2RBS 1
No Coverage
Radio Connection
Supervision

13. LTE Radio Network Functionality -Introduction | Ericsson Internal | , Rev | 2017-06-12 | Page 13
Resource
assignments
UL/DL
RBS
QoS
Framework
QoS
Parameters
QCIs
ARPs
Scheduling
Link
Adaptation
Channel
feedback
Power
Control
TPC
commands
Scheduling, QoS, LA, PC
Overview

14. LTE Radio Network Functionality -Introduction | Ericsson Internal | , Rev | 2017-06-12 | Page 14
QPSK
(2 bits/symbol)
16 QAM
(4 bits/symbol)
64 QAM
(6 bits/symbol)
Radio Environment:
Poor Good
Low data rate High data rateMedium data rate
RRC
Connected
Link Adaptation

15. LTE Radio Network Functionality -Introduction | Ericsson Internal | , Rev | 2017-06-12 | Page 15
+
Carrier Aggregation
›Provides the ability to transmit
data to a single UE on multiple
carriers simultaneously with an
increased aggregated
bandwidth.
Significantly increased downlink speed across
coverage area and higher capacity

16. LTE Radio Network Functionality -Introduction | Ericsson Internal | , Rev | 2017-06-12 | Page 16
›The Combined Cell feature allows two or more RRU’s to be
operated as a single cell
–E.g. outdoor cells extended to indoor coverage without need for new cell
–Enable seamless mobility between sectors belonging to the same cell
Combined Cell
Improved coverage and end-user experience

17. LTE Radio Network Functionality -Introduction | Ericsson Internal | , Rev | 2017-06-12 | Page 17
›Operator benefit
–Increased UL bitrates and cell
capacity
–Beat competition on end user
experience
–Enables efficient Heterogeneous NW
deployment
Improves uplink bitrate by combining
antenna signals from different cells
Coordinated Multi-Point
Reception (CoMP)
Increased App coverage

18. LTE Radio Network Functionality -Introduction | Ericsson Internal | , Rev | 2017-06-12 | Page 18
RBS
Cell Load
Admission
limit
Capacity Management
(Admission Control)

19. LTE Radio Network Functionality -Introduction | Ericsson Internal | , Rev | 2017-06-12 | Page 19
Cell Load
Congestion
limit
RBS
Capacity Management
(Congestion Control)

20. LTE Radio Network Functionality -Introduction | Ericsson Internal | , Rev | 2017-06-12 | Page 20
f1
f2
LTE
WCDMA
IF Load Balancing
IF Offload
IRAT Offload to WCDMA
Basic Load
Management
LTE Load Management
Better load distribution between different carriers

21. LTE Radio Network Functionality -Introduction | Ericsson Internal | , Rev | 2017-06-12 | Page 21
›RBS Hardware related features
›O&M related features
›Traffic related features
›Transport Network related features
›Location Management related features
HW, O&M, TN, Traffic,
Location Management

22. LTE Radio Network Functionality -Introduction | Ericsson Internal | , Rev | 2017-06-12 | Page 22
Summary

23. LTE Radio Network Functionality -Introduction | Ericsson Internal | , Rev | 2017-06-12 | Page 23
›Radio Connection
Supervision
›Scheduling, Link Adaptation
and Power Control
›Capacity
Management
RBS
QoS
Framework
Scheduling
Link
Adaptation
Power
Control
IDLE
MODE
No Coverage
›Idle Mode
Behavior
Summary of LTE
Functionality

24. LTE Radio Network Functionality -Introduction | Ericsson Internal | , Rev | 2017-06-12 | Page 24
f1
f2
IF Load Balancing
IF Offload
IRAT Offload
+
›HW, O&M
›TN, Traffic and LM
Summary of LTE
Functionality (Cont)

25. LTE Radio Network Functionality -Introduction | Ericsson Internal | , Rev | 2017-06-12 | Page 25
Quiz

27. LTE Radio Network Functionality -Introduction | Ericsson Internal | , Rev | 2017-06-12 | Page 27
More
Information
Check the LTE Delta Web
Based modules for the latest
LTE RAN functionality updates.
›Product Catalog
›Lighthouse
›CPI Store

28. Thank you!