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IEEE L802.16-08/011d0
This document was approved for submission to 802.18 WG according to the following motion passed by
802.16 WG:
“To authorize the ITU-R Liaison Group to draft documents regarding contributions to ITU-R as needed,
tentatively approve them on behalf of the WG (subject to confirmation at the 802.16 Closing Plenary), and
submit them for 802.18 review.”
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Text for the ITU-R contribution cover:
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This contribution proposes changes in Sections 5 and 6 of the ITU-R/IMT-Advanced/IMT.TECH
document, as presented in Document 5D/TEMP/28.
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It is proposed to delete Section 6 and to incorporate the attached changes in Section 5.
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The proposed amendments include those provided previously by IEEE for Section 5 in Doc. 5D/7;
which has been implemented by doing an electronic comparison of Document 5D/7 and
5D/TEMP/28 from Section 5.1 to the end of Section 5. As a result the presentation of Section 5
with track changes may not look pretty, but after accepting the track changes the intended result is
obtained.
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[Internal note for IEEE 802: the input contribution that gave rise to this document proposes largely
editorial changes with respect to the previous IEEE contribution in Doc. 5D/7 and it is available at:
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C80216-08_007.doc
at http://wirelessman.org/docs/08/C80216-08_007.doc
(size: 264.7 KB last modified: 2008-03-17 )
Proposed Changes in Sections 5 and 6 of ITU-R/IMT-Advanced/IMT.TECH Document
Sassan Ahmadi
Intel Corporation]
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Attachment: Proposed amendments to Section 5.
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Source: Doc. 5D/TEMP/28
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The minimum performance requirements are specified in Section 4. This section provides guidance
on the type of information that needs to be provided in a response to the description template and as
such this section does not include any system requirements.
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[Editor’s note: target maximum length for each item: 1/3 page]
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[Included diagram below from Doc. 8F/1202 (Canada) as a placeholder, to be updated when
sub-sections in 2.1 are concluded.]
Description of Technological Aspects
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Radio
Transmissi
on
Technology
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Multiple
Access
Technology
Modulation
Technology
Channel
coding and
interleaving
RF-channel
parameters
Duplexing
technology
Frame
structure
Scheduler
and QoS
management
Physical
channel
structure and
multiplexing
MIMO and
Space-time
coding
Reconfigurable
radio
parameters
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VoIP and
multicast
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Radio
Security
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5.1
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The choice of the multiple access technology has major impact on the design of the radio interface;
for instance, OFDMA, CDMA, SDMA, CSMA, also Single-carrier/Multi-carrier operation, as well
as enhancement and combination of those technologies.
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The following are some factors that should be described:
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Supporting high-efficiency usage of spectrum. (Such as reducing and avoiding interference,
reducing overhead, etc.)
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Adequate for broadband transmission and packet switching
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High granularity/flexibility for provision of wide class of services
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5.2
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The modulation schemes used should be described.
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5.3
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The error control coding schemes used should be described. Examples may include:
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
Multiple Access Methods
Supporting flexible reuse and allocation of resource
Modulation Scheme
Error Control Coding Scheme
Advanced forward error correction coding schemes such as Turbo and LDPC
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Adaptive Modulation and Coding (AMC) schemes with various Modulation and Coding
Scheme (MCS) levels.
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Hybrid ARQ.
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If more than one scheme is employed, the adaptation method for each scheme (e.g. error control
coding A is adapted to B modulation scheme, etc.) should be described.
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5.4
Physical Channel Structure and Multiplexing
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The physical channel structure and multiplexing method employed in the radio interface technology
should be described.
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5.5
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The frame structure used should be described.
Frame Structure
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5.6
Spectrum Capabilities
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5.6.1
Duplex Methods (Paired and unpaired operation)
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The duplex method used should be described. The IMT-Advanced systems may support unpaired
and/or paired frequency allocations.
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5.6.3
Spectrum Sharing
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Any spectrum sharing techniques within a specific radio interface technology or between different
radio interface technologies may be described.
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5.6.4
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[Editor’s note: WG spectrum may expect input on requirements in this area from IMT.TECH.]
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The following items may be taken into consideration when describing the channel bandwidth
utilization of the candidate radio interface technologies:
Channel Bandwidth Scalability
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Minimum and maximum operating bandwidths of the system
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Flexibility and scalability of spectrum usage
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Multiple contiguous or non-contiguous band aggregation frequency plans including paired
and /or unpaired channel plans with multiple bandwidths for allowing co-deployment with existing
cellular systems.
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5.7
Support of Advanced Antenna Technologies
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Any advanced antenna technologies, such as MIMO, beamforming, antenna diversity, etc.,
supported by the system should be described.
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5.8
Link Adaptation and Power Control
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Any link adaptation (e.g., adaptive modulation and coding, power control, etc.) used by the systems
should be described.
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5.9
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Any applicable RF channel parameters including (e.g., bandwidth, allocation, channel spacing
(FDD), guard time (TDD), FFT size (OFDMA), or chip rate (CDMA)) should be described.
RF Channel Parameters
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5.11
Radio Interface Architecture and Protocol Structure
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The radio interface architecture and protocol structure including Layer 1 and Layer 2 as well as
interface to Layer 3 should be described.
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5.12
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If the proposed technology supports positioning, it should describe what the achieved positioning
accuracy in different environments is.
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5.13
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Any support of Multimedia Broadcast and Multicast capabilities, e.g., Multimedia Broadcast and
Multicast Services at both a dedicated carrier and mixed carrier where Multimedia Broadcast and
Multicast Services exist simultaneously should be described.
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The following should be described in support for QoS in IMT-Advanced systems:
Positioning
Support of Multicast and Broadcast
QoS Support and Management
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QoS class associated with each service flow;
QoS attributes may include:
 Data rate (ranging from the lowest supported data rate to maximum data rate
supported by the MAC/PHY),
 Latency (delivery delay),
 Packet error rate (after all corrections provided by the MAC/PHY layers), and
delay variation (jitter).
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Support for QoS classes
5.15
Security Aspects
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Any security methods that are employed in the radio interface technology should be described.
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5.15.1 Privacy and Authentication Aspects
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Any privacy and authentication functions supported should be described.
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5.16
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The radio access network topology should be described; e.g., support for any of the following:
Network Topology
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Single-hop mode, Multi-hop mode, Mesh mode and Peer to peer mode
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How the proposed system scales to different types of operators and deployment cases
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Supporting multi-RATs cooperation
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5.18
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Support of any advanced interference mitigation and enhanced flexible frequency re-use schemes
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should be described.
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5.19
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Any synchronization mechanisms used including synchronization between a user terminal and a
site, synchronization between sites should be described.
Interference Mitigation within Radio Air-interface
Synchronization
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5.20
Power Efficiency
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The techniques used for power efficiency as applicable to base station and the user terminal
should be described.
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