Post on 07-Jul-2015
www.lstiforum.org
LSTI –Boosting LTE for Mobile Broadband Deployment
Christian Kuhlins, Ericsson AB
Chairman LSTI IOT Activity Group
christian.kuhlins@ericsson.com
Remi Thomas, FT Orange
Director of the LTE EPC Programme at France Telecom
remi.thomas@orange-ftgroup.com
The Journey From Testing Prototypes
To Testing Real Products
EPCeNBUu
Interoperability Development
Testing - IODT
Standard compatible
prototypes
S1 S1
X2
EPC
eNB eNB
Uu
Interoperability Testing
IOT
Standard compatible product
platforms to reach the market
First LTE Devices And Networks Interoperating
”Vendor A
to report:
successful test
with two
different Ue
vendors B&C!”
S1 S1
X2
EPC
eNB
Vendor AeNB
Vendor A
Uu
IOT Uu
Ue
Vendor B & C
Multi-Vendor Network Configurations Interoperating
S1 S1
X2
EPC
Vendor BeNB
Vendor A
eNB
Vendor A
Uu
IOT S1
”Vendor A
to report:
successful test
with another EPC
vendor B!”
S1 S1
X2
EPC
eNB
Vendor A
eNB
Vendor B
Uu
IOT X2
”Vendor A
to report:
successful test
with another eNB
vendor B!”
LTE/SAE -
Becoming A Mature Technology For Mobile Broadband
From Standardisation……to Commercial Rollout
InteroperabilityInteroperabilityIODT: Close to completion
IOT: First results for Air Interface
and S1&X2 interface delivered
Friendly Customer TrialsFriendly Customer TrialsActive Trials
delivering first results
Proof of ConceptProof of Concept Proof of Concept completed
LSTI Friendly Customer Trials (FCT)
Consolidated Test Methods For LTE
• Common recommendations for set-up of Trial Networks
• Common definition of Key Performance Indicators
• Common generic procedures for Trial Configuration
• 42 test specifications grouped in 13 testing domains
• Set of methodologies according to NGMN Field Trial
Requirements
• LSTI FCT split in 2 Trial Phases:
• Radio Access testing allowing non-commercial or
simulated EPC solutions
• Integration with EPC & E2E using fully “commercial”
network platform
10 Operators perform LSTI Trials
LSTI Trials started:
Architecture Of A Typical Trial Network
HSS PCRF
Serving
Gateway
PDN
Gateway
MME
EPC
S1-MME
S1-U
Performance Monitoring
OAM
FTP/UDP
Application Servers
Video
StreamingWEB
SGi
Protocol Analyzer
eNB traces
UE
Mobile trace tool
Fiber
7 Operators Already Delivering Trial Results
Test cases:
• Latency
• StateTransitions
• Throughput
• Cell Capacity /
Cell Load
First Results Meet Expected Performance Levels
Latency First LSTI FCT Trials
demonstrate that LTE can
deliver a very low latency
experience; this enables
even the most demanding
applications such as online
gaming.
Application ServerEPC
eNB
UE
Measured Round Trip Times
Trial Results
U-Plane: Measured Round Trip Times (32Byte)
Non-scheduled
ms0 5 10 15 20 25 30
End – End
ping
PoC Results
First Results Meet Expected Performance Levels
Throughputs
• The measured peak rates for FDD & TDD normalized to
20 MHz meet or exceed the NGMN Field Trial expectations
of at least 100 Mbps for downlink & 30-50 Mbps on uplink.
• The throughput depending on radio link quality (single UE
testing) indicates a good alignment between 6 different
trials.
Plans Are Defined For E2E Performance Testing
• Both Radio Access testing and End to End testing
phases are planned throughout 2010 for most of LSTI
Operators.
• On a test domain per test domain basis, the LSTI FCT
group will analyse detailed results and elaborate an
explicit message to the industry.
• Performance levels and main relating testing conditions
will then be displayed for sustaining the LTE-EPC
ecosystem.
14
Thank You
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