LTE standards

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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
• Status of the work within 3GPP TSG RAN
• Detailed information
• Introduction to LTE advanced
• Timescale for LTE Advanced
• Conclusion

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• Status of the work in 3GPP

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3GPP TSG RAN Organization
TSG RAN
RAN WG1 Layer 1
RAN WG2 Layer 2/3
RAN WG3 Layer 2/3
RAN WG4 Layer 1 P/R
RAN WG5 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
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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 Title Completion level at RAN38 Functional freezing date
36.201 LTE Physical Layer General Description Completed Dec. 07
36.211 Physical channels and modulation Completed Dec. 07
36.212 Multiplexing and channel coding Completed Dec. 07
36.213 Physical layer procedure Completed Dec. 07
36.214 Physical layer measurements Completed Dec. 07
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TS Title Compl. level at RAN41 Functional freezing date
36.302 Services provided by the physical layer 95 Mar. 08
36.304 UE procedures in Idle mode 95 Mar. 08
36.306 UE Radio Access 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
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TS Title Compl. level at RAN40 Functional freezing date
36.401 EUTRAN Architecture Description 95 Mar. 08
36.410 S1 General Aspects and Principles 95 Mar. 08
36.411 S1 Layer 1 95 Mar. 08
36.412 S1 Signaling Transport 95 Mar. 08
36.413 S1 Protocol Specification 95 Mar. 08Sep. 08 for ASN.1
36.414 S1 Data Transport 95 Mar. 08
36.420 X2 General Aspects and Principles 95 Mar. 08
36.421 X2 Layer 1 95 Mar. 08
36.422 X2 Signaling Transport 95 Mar. 08
36.423 X2 Protocol Specification 95 Mar. 08March 09 for ASN.1
36.424 X2 Data Transport 95 Mar. 08
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TS Title Title Compl. level at RAN41 Function freezing
36.101 UE radio transmission and reception Core requirements 90 Mar. 08
36.101 UE radio transmission and reception Performance requirements 60 Mar. 08
36.104 BS radio transmission and reception Core requirements 95 Mar. 08
36.104 BS radio transmission and reception Performance requirements 70 Mar. 08
36.133 Requirements for support of radio resource management Core requirements 90 Sep. 08
36.133 Requirements for support of radio resource management Performance requirements 60 Sep. 08
36.141 BS conformance testing Core requirements 80 Sept. 08
36.141 BS conformance testing Performance requirements 60 Sept. 08
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TS Title Completion level at RAN38 Date for Approval Functional freezing date
36.508 Common test environments for UE conformance testing 10 Dec. 08 TBD
36.521 UE conformance specification Radio transmission and reception (RF) 20 Sep. 08 TBD
36.523 UE conformance specification (Sig) 15 Dec. 08 TBD
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 E-UTRA
  is as follows
• Define a framework for further advancements of
  E-UTRA 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 E-UTRAN 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 E-UTRAN 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 ITU-R, 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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• RAN41 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

2009
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LTE
CR phase
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WS
2nd WS
Study Item
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Circular letter amendment with requirements and
eval. methodology from WP 5D 2
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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?