Global Standards Collaboration (GSC) 14
DOCUMENT #:
GSC14-PLEN-050
FOR:
Presentation
SOURCE:
TTA, Korea
AGENDA ITEM:
6.1
CONTACT(S):
Daejung Kim(kdj@tta.or.kr)
TTA Activities on IMT-Advanced
standardization
DJey KIM (kdj@tta.or.kr)
TTA
Geneva, 13-16 July 2009
Fostering worldwide interoperability
Highlight of Current Activities
ITU-R WP5D invited technology submission for IMTAdvanced standards.
3GPP and IEEE presented their intention to submit LTE-Adv.
and IEEE 802.16m during past WP5D meetings through
initial submission at Feb. WP5D meeting.
3GPP submitted detailed technology description at June
WP5D meeting.
13 evaluation groups were registered as independent
evaluation groups in order to evaluate candidate
technologies against IMT-Adv minimum requirement.
Detailed evaluation will be discussed in 7th & 8th WP5D
meetings in accordance with ITU-R WP5D schedule.
Geneva, 13-16 July 2009
Fostering worldwide interoperability
2
Highlight of Current Activities
TTA are actively involved in the IMT-Adv submission
and evaluation activities.
TTA endorsed LTE-Advanced submission as an
organization partner of 3GPP at June WP5D meeting
TTA also supports IEEE 802.16m technology for IMTAdvanced candidate technology.
TTA registered as independent evaluation group, and
provided technical contributions to WP5D e.g., C-code
implementation of channel model, and clarification of
channel model.
TTA has actively participated in CJk-B3G collaboration.
AWF and 3GPPs collaboration were agreed as work scope.
SIG on Evaluation was established.
10 Joint contributions were made toward WP5D so far
Geneva, 13-16 July 2009
Fostering worldwide interoperability
3
Proposed Strategic Direction
It is very important for ITU-R WP5D to manage the
IMT-Advanced standardization process on time.
Broadband networks are demanded for high-capacity
services on newly identified spectrum at WRC-07.
Based on timely IMT-Adv. Work completion, WRC-11
preparation can be smooth
This concludes that IMT-Advanced standardization
process should be maintained in a transparent and
efficient manner.
The progress of works should be well documented
The works of proponents and evaluation groups should be
well organized.
4
Fostering worldwide interoperability
Challenges
The difference of evaluation results
Multiple evaluation methods are specified for different
perspectives of evaluation for IMT-Advanced RIT or SRIT.
ITU-R M.2135 didn’t specify every details on evaluation
methodologies with consideration of different conditions
required by different technologies.
The different understanding or implementation of
evaluation methodology described in the Report ITU-R
M.2135 by different evaluation groups.
It is difficult to calibrate evaluation methodologies among
evaluation groups taking into account time and resource.
The ambiguity of consensus building(Step7)
After compliance assessment with minimum requirements
at Step 6, consensus building and decision (step7) will
begin. However, there is no clear definition & guideline on
how to achieve objectives of “consensus building”.
5
Fostering worldwide interoperability
Next Steps toward IMT-Adv.
Standardization
The efficient work under IMT.RADIO
Although scope and work plan for IMT.RADIO was
proposed at the previous WP5D meeting, there are still
different views.
However, TTA is of view that IMT.RADIO is needed for an
interim document to smoothly connect evaluation
discussion to ITU-R M.[IMT.RSPEC] development.
Therefore, TTA would like to propose that IMT.Radio should
be developed towards a new IMT-ADV document under
current workplan in order to facilitate consensus building
process, while comprised of the summary of discussion on
the evaluation of each candidate RIT/SRIT
6
Fostering worldwide interoperability
Supplementary Slides
Geneva, 13-16 July 2009
Fostering worldwide interoperability
7
FIGURE A2-1 (IMT-ADV/2-E)
Schedule for the development of IMT-Advanced radio interface
Recommendations
WP 5D
meetings
2008
No.1
(0)
2009
No.2
No.3
No.4
2010
No.5
No.6
No.7
No.8
2011
No.9
No.10
Step1 and 2
(20 months)
Step 3
(8 months)
(1)
Step 4
(16 months)
(2)
Steps 5,6 and 7
(20 months)
(3)
Steps 8
(12 months)
(4)
Steps in radio interface development process:
Step 1: Issuance of the circular letter
Step 2: Development of candidate RITs and SRITs
Step 3: Submission/Reception of the RIT and SRIT proposals
and acknowledgement of receipt
Step 4: Evaluation of candidate RITs and SRITs
by evaluation groups
Step 5: Review and coordination of outside evaluation activities
Step 6: Review to assess compliance with minimum requirements
Step 7: Consideration of evaluation results, consensus building
and decision
Step 8: Development of radio interface Recommendation(s)
Critical milestones in radio interface development process:
(0): Issue an invitation to propose RITs
(1): ITU proposed cut off for submission
of candidate RIT and SRIT proposals
March 2008
October 2009
(2): Cut off for evaluation report to ITU
June 2010
(3): WP 5D decides framework and key
October 2010
characteristics of IMT-Advanced RITs and SRITs
(4): WP 5D completes development of radio
February 2011
interface specification Recommendations
IMT-Advanced A2-01
Geneva, 13-16 July 2009
Fostering worldwide interoperability
8
IMT-Advanced development process
(ITU-R WP5D)
Steps of
IMT-Advanced proces
s
Step 1
Work aspect
Responsible Group
Issuance of circular letter
Ad Hoc Circular Letter
Step 2
Development of candidate RIT/SRITs
Step 3
Reception of the RIT/SRIT proposals &
Acknowledgement of receipt
Step 4
Evaluation of candidate RIT/SRIT
Step 5
Review and coordination of outside eval
uation activities
WG-TECH
Step 6
Review and access compliance with mi
nimum requirements
WG-TECH
SWG-EVAL
Step 7
Consideration of evaluation results, con
sensus building and decision
WG-TECH
Step 8
Development of radio interface Recom
mendation(s)
To be determined
Geneva, 13-16 July 2009
Note
Completed
Proponents
External to ITU
Radiocommunication Bureau
&
SWG Coordination
External Evaluation Group
External to ITU
SWG Coordination is the focal
point for internal and external c
oordination
SWG Coordination is the focal
point for internal and external c
oordination
Decision will be made at later
meeting
Fostering worldwide interoperability
9