Transcript 3GPP general presentation

LTE standards
Status for this work in 3GPP and
what next for the Future
Francois COURAU
3GPP TSG RAN Chairman
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•
LTE STANDARDS
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2
3
4
5
Status of the work within 3GPP TSG RAN
Detailed information
Introduction to LTE advanced
Timescale for LTE Advanced
Conclusion
2
Status of the work in 3GPP
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3GPP TSG RAN Organization
TSG RAN
RAN WG1 RAN WG2 RAN WG3 RAN WG4 RAN WG5
Layer 1
Layer 2/3 Layer 2/3 Layer 1 P/R UE Tests
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General Introduction to the work in 3GPP
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• Work in 3GPP is organized around the
concept of release which can be defined
as a complete set of functionalities for a
full cellular network allowing new set of
services to be deployed by operators
• After completing a long evolution of the
Wideband CDMA radio technology, 3GPP
decided to work on a new concept of radio
technology to allow further evolution
having in mind a long term evolution. LTE
was born. But this does not stop
completely parallel evolution of the
WCDMA
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Detailed information on the development of
LTE
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LTE Access Network Architecture
MME / S-GW
MME / S-GW
S1
S1
S1
S1
X2
E-UTRAN
eNB
eNB
X2
X2
eNB
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LTE Standard
• Layer 1 specification
– It can be separated in 2 parts
• First part resulting from the work in RAN WG1
dealing with the description of the physical layer is
now subject to the correction phase since last term.
Functionalities described are complete and no major
changes are expected. Set of specification
contained in 36.2xx series
• Second part mainly concerning the Requirement and
the Performances still need to be completed but this
is already considered as complete at 60% level. It is
anticipated that this should be completed in
December 2008. This work is mainly in the hand of
WG4. This is a key activity as it is the premises for
the tests activities. Set of specification contained in
36.1xx series
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• Layer 2 and Layer 3 (Signaling over
Interfaces)
– Over the radio interface:
• Mainly under responsibility of RAN WG2
• It covers all aspects related to the MAC, RLC and
RRC
• Set of specification contained in 36.3xx series
– In between the Core and the Access Network
• Covers all the aspects from physical layer of the
interfaces S1, X1 and X2
• Set of specification contained in 36.4xx series
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• User Equipment Testing activities
– WG5 is in charge of defining the test
specification for the User Equipment designed
by 3GPP. This covers the two following
aspects:
• Tests of the User Equipment part covering the Radio
Interface (Access Stratum)
• Tests of the User Equipment part covering the
User/Core Network interface (Non Access Stratum)
• Work has already started. Discussion on the priority
of test development between TSG RAN and the
Working Group started in June and are still under
way
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LTE Standards
TS
36.201
36.211
36.212
36.213
36.214
Title
LTE Physical Layer –
General Description
Physical channels and
modulation
Multiplexing and
channel coding
Physical layer
procedure
Physical layer
measurements
Completion Functional
level at
freezing
RAN#38
date
Completed Dec. 07
Completed Dec. 07
Completed Dec. 07
Completed Dec. 07
Completed Dec. 07
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Compl.
level at
RAN#41
Functional
freezing date
Services provided by
36.302
the physical layer
95%
Mar. 08
UE procedures in Idle
36.304
mode
95%
Mar. 08
UE Radio Access
36.306
capabilities
95%
Jun. 08
36.321 MAC
95%
Jun. 08
36.322 RLC
95%
Jun. 08
36.323 PDCP
95%
Dec. 07
36.331 RRC
95%
MAR. 09 for ASN.1
TS
Title
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TS
Title
Compl. level
at RAN#40
36.401
36.410
36.411
36.412
EUTRAN Architecture Description
S1 General Aspects and Principles
S1 Layer 1
S1 Signaling Transport
95%
95%
95%
95%
36.413
S1 Protocol Specification
95%
Functional
freezing
date
Mar. 08
Mar. 08
Mar. 08
Mar. 08
Mar. 08
Sep. 08
for
ASN.1
36.414
36.420
36.421
36.422
S1 Data Transport
X2 General Aspects and Principles
X2 Layer 1
X2 Signaling Transport
95%
95%
95%
95%
36.423
X2 Protocol Specification
95%
Mar. 08
Mar. 08
Mar. 08
Mar. 08
Mar. 08
March 09
for
ASN.1
36.424
X2 Data Transport
95%
Mar. 08
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TS
Compl.
level at
RAN#41
Title
UE radio
36.101 transmission
and reception
BS radio
36.104 transmission
and reception
Core
requirements
90%
Performance
requirements
60%
Core
requirements
95%
Performance
requirements
70%
Requirements
for support of
36.133
radio resource
management
Core
requirements
90%
Performance
requirements
60%
BS
36.141 conformance
testing
Core
requirements
80%
Performance
requirements
60%
Function
freezing
Mar. 08
Mar. 08
Sep.
08
Sept.
08
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Completio
n level at
RAN#38
Date for
Approval
Functiona
l freezing
date
Common test
36.508 environments for UE
conformance testing
10%
Dec. 08
TBD
UE conformance
specification Radio
36.521 transmission and
reception (RF)
20%
Sep. 08
TBD
15%
Dec.
08*
TBD
TS
Title
UE conformance
36.523 specification (Sig)
This date was set considering work plan for AS(LTE) signaling only.
Work plan that includes NAS signaling still needs to be confirmed
in the RAN5 work plan (awaiting progress in CT1 mainly).
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Introduction to LTE advanced
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LTE Advanced
• ITU-R is currently investigating 4G and has
solicited all organization for proposing
technology as candidate for radio interface
• 3GPP had recently organized two workshops to
examine this request
• At the last plenary it has been decided to answer
to ITU-R with an evolution of the radio technology
already proposed in as an IMT 2000 technology:
LTE
• Here follows the foreseen evolutions already
under study in 3GPP
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• Main Characteristics for LTE Advance
– The objective of Further Advancements for EUTRA is as follows:
• Define a framework for further advancements of EUTRA and E-UTRAN (to be referred to as Advanced
E-UTRA and Advanced EUTRAN considering:
• The time schedule of ITU-R
• That the work on Advanced E-UTRA and Advanced
E-UTRAN must not introduce any delay to the
completion of the Release 8 specification of E-UTRA
and E-UTRAN
• That the general enhancements of specifications for
Release 8 E-UTRA and E-UTRAN are maintained and
progressed in a focused and efficient manner.
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• Define requirements for Advanced E-UTRA and Advanced EUTRAN based on the ITU-R requirements for IMT-Advanced as
well as 3GPP operators own requirements for advancing Release
8 E-UTRA AND E-UTRAN considering:
• E-UTRA radio technology and architecture improvements
• Support for all radio modes of operation
• Interworking with legacy RATs (scenarios and performance
requirements)
• Backward compatibility of Advanced E-UTRA and Advanced EUTRAN with Release 8 E-UTRA and E-UTRAN i.e.
– an Release 8 E-UTRA terminal can work in an Advanced E-UTRAN,
– an Advanced E-UTRA terminal can work in an Release 8 E-UTRAN and
– non-backward compatible elements could be considered based on
RAN decision
• Newly identified frequency bands and existing frequency bands,
and their advantages and limitations, in particular, the
consideration of the WRC-07 conclusions, to ensure that
Advanced E-UTRA can accommodate radio channel bandwidths
commensurate with the availability in parts of the world of
wideband channels in the spectrum allocations (above 20 MHz)
and at the same time being mindful on the need to accommodate
those parts of the world where the spectrum allocations will not
have availability of wideband channels
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• Identify potential solutions, technologies for the Advanced
E-UTRA and Advanced E-UTRAN. The study areas include:
• Physical layer
• Radio interface layer 2 and RRC
• E-UTRAN architecture
• RF, including Aspects of wider channel bandwidth than 20
MHz
• Advanced system concepts
• To develop documents that will serve as a basis for the
documentation to be submitted to ITU-R to provide the
3GPP proposals for IMT-Advanced:
• An “Early Proposal” submission that would be sent to ITUR, to be agreed at RAN #41 (9-12 September 2008), for
submission to WP 5D #3 (8-15 October 2008).
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– A “Complete Technology” submission that
would be sent to ITU-R, to be agreed at RAN
#44 (26-29 May 2009), for submission to WP 5D
#5 (planned for 10-17 June 2009).
– A “Final” submission to incorporate updates,
additional specific details or feature additions,
and the required self-evaluation that would be
sent to ITU-R, to be agreed at RAN #45 (22-25
September 2009), for submission to WP 5D #6
(planned for 13-20 Oct 2009).
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RAN#41
9-12 September 2008 in Kobe, JP
• Have a verification that the 3GPP requirements are equal or
exceeding the ITU-R requirements
• Update 3GPP LTE-Advanced requirements according to the
verification results if needed
• Make an early submission of the 3GPP concept to the ITU-R
IMT-Advanced process
2007
2008
LTE
2009
2010
2011
CR phase
#38
#39
WS
#40
#41
#42
#43 #44
#45
#46
#47
#48
#49
2nd WS
Study Item
#1
#2
Circular letter
amendment with
requirements and eval.
methodology from WP 5D
#2
#3
#4
Work Item
#5
#6
#7
#8
#9
#10
#11
#12
Proposals
Evaluation
Consensus
Specification
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Conclusion
• As can be seen from the previous slide
3GPP is fully busy for a certain number of
years with covering at the same time:
–
–
–
–
Evolution of WCDMA
Completion of the development of LTE
Definition of LTE advance
LTE is part of IMT advance process in ITU-R
and 3GPP will provide the SDO with the
evaluation of the technology
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Thank you!
Any Question?
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