IEEE C802.16m-07/303
Project
IEEE 802.16 Broadband Wireless Access Working Group <http://ieee802.org/16>
Title
Proposed Table of Contents for 802.16m SDD
Date
Submitted
2007-11-07
Source(s)
Jin Sam Kwak,
Kiseon Ryu,
HanGyu Cho,
Ronny (Yong-Ho) Kim,
Minseok Oh
Voice: +82-31-450-7902
E-mail: samji@lge.com
ksryu@lge.com
hgcho@lge.com
ronnykim@lge.com
minoh@lge.com
LG Electronic Inc.
LG R&D Complex, 533 Hogye-1dong,
Dongan-gu, Anyang, 431-749, Korea
*<http://standards.ieee.org/faqs/affiliationFAQ.html>
Re:
IEEE 802.16m-07/040– Call for Comments on Project 802.16m System Description Document
(SDD), 10/22/07
Abstract
This contribution provides the overall framework of the Table of Contents with high-level
physical-and MAC-layer functional areas for the SDD deployment in the IEEE 802.16m. The
specific ToC descriptions basically incorporate all mandatory system requirements related to the
PHY and MAC functionalities addressed in the 802.16m SRD.
Purpose
For discussion and approval by TGM
Notice
Release
Patent
Policy
This document does not represent the agreed views of the IEEE 802.16 Working Group or any of its subgroups. It
represents only the views of the participants listed in the “Source(s)” field above. It is offered as a basis for
discussion. It is not binding on the contributor(s), who reserve(s) the right to add, amend or withdraw material
contained herein.
The contributor grants a free, irrevocable license to the IEEE to incorporate material contained in this contribution,
and any modifications thereof, in the creation of an IEEE Standards publication; to copyright in the IEEE’s name
any IEEE Standards publication even though it may include portions of this contribution; and at the IEEE’s sole
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contributor also acknowledges and accepts that this contribution may be made public by IEEE 802.16.
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<http://standards.ieee.org/guides/bylaws/sect6-7.html#6> and
<http://standards.ieee.org/guides/opman/sect6.html#6.3>.
Further information is located at <http://standards.ieee.org/board/pat/pat-material.html> and
<http://standards.ieee.org/board/pat>.
Proposed Table of Contents for 802.16m SDD
Jin Sam Kwak, Kiseon Ryu, HanGyu Cho, Ronny (Yong-Ho) Kim, Minseok Oh
LG Electronics
Abstract
This contribution provides the Table of Contents (ToC) for the PHY and MAC layer of the 802.16m SDD. The
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IEEE C802.16m-07/303
proposed ToC basically incorporates all mandatory system requirements for the PHY and MAC layer in
accordance with the 802.16m SRD.
Background
In order to reflect the baseline requirements specified in the 802.16m System Requirement Document (SRD)
and references therein into the Table of Contents (ToC), this contribution proposes the high-level ToC
framework for the 802.16m SDD development. In addition, the proposed ToC also includes the functional areas
of the PHY and MAC layer and other essential composite areas in accordance with the 802.16m mandatory
system requirements.
Since “IEEE 802.16m shall support the features, functions, and protocols employed by WirelessMAN-OFDMA
legacy equipment,” as addressed in the 16m SRD, the contents of the 802.16m SDD basically include those in
the WiMAX Forum Mobile System Profile, Release 1.0. Furthermore, the enhanced functional characteristics to
meet the 802.16m system requirements should be also incorporated in the ToC of the 802.16m SDD.
Text Proposal for the Table of Contents of 802.16m SDD
============================== Start of Proposed Text =================================
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1. Overview
2. References
3. Definitions, Abbreviations and Acronyms
4. System and Protocol Architectures
4.1
Reference models and functional architectures
4.2
Protocol architectures and main functionalities
5. Physical Layer Description
5.1
System Parameters and Terms Definitions
5.1.1 Primitive / Derived parameters
5.1.2 Basic terms definitions
5.2
Frame Structure
5.2.1
5.2.2
5.2.3
5.2.4
5.3
Channel Coding and Modulation
5.3.1
5.3.2
5.3.3
5.3.4
5.3.5
5.3.6
5.4
DL/UL Multiple Access scheme
Duplex Method
Spectrum Capability/Scalability
Legacy Support
Overall Structure
Randomization
Encoding
Channel Interleaving
HARQ Support
Modulation
Multi-Antenna Techniques
5.4.1 MIMO structure
5.4.1.1 Codeword to Layer Mapping
5.4.1.2 Layer to Antenna Mapping
5.4.2 Downlink
5.4.2.1 Single user MIMO
5.4.2.1.1
Open-loop MIMO
5.4.2.1.2
Closed-loop MIMO
5.4.2.2 Multi user MIMO
5.4.2.2.1
Open-loop MIMO
5.4.2.2.2
Closed-loop MIMO
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5.4.3 Uplink
5.4.3.1 Single user MIMO
5.4.3.1.1
Open-loop MIMO
5.4.3.1.2
Closed-loop MIMO
5.4.3.2 Multi user MIMO
5.4.3.2.1
Open-loop MIMO
5.4.3.2.2
Closed-loop MIMO
5.5
Subcarrier Allocations
5.5.1 Downlink subcarrier allocations
5.5.1.1 Distributed/Adjacent permutations
5.5.1.2 Pilot structures and modulation
5.5.2 Uplink subcarrier allocations
5.5.2.1 Distributed/Adjacent permutations
5.5.2.2 Pilot structures and modulation
5.6
Control Channels and Mechanisms
5.6.1 Control channels
5.6.1.1 Downlink control channels
5.6.1.2 Uplink control channels
5.6.2 Control mechanisms in PHY
5.6.2.1
5.6.2.2
5.6.2.3
5.6.2.4
5.6.2.5
5.6.2.6
5.6.2.7
5.6.2.8
5.6.2.9
5.7
Synchronization
Ranging
Power control
Uplink Sounding
Bandwidth request
CQI Feedback
Hybrid ARQ support
Handover support
Measurement
Coexistence with Non-802.16 Networks
6. MAC Layer Description
6.1 Service specific CS
6.2 MAC PDU formats
6.2.1
6.2.2
6.2.3
MAC header/subheader format
MAC management message
MAC PDU construction and transmission
6.3 ARQ mechanism
6.4 MAC support for HARQ
6.4.1
HARQ operation
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6.4.2
6.4.3
ACK/NACK signaling
HARQ parameter signaling
6.5 QoS
6.5.1
6.5.2
Scheduling services
UL bandwidth request and grant mechanism
6.6 Network entry and initialization
6.7 MAC support for control mechanisms
6.7.1
6.7.2
6.7.3
6.7.4
6.7.5
BS Synchronization
Ranging
Power Control
UL Sounding
CQI Reporting
6.8 MAC support for MBS
6.9 Mobility management
6.9.1
Intra-RAT Handover
6.9.1.1
6.9.1.2
6.9.1.3
6.9.1.4
6.9.2
Neighbor BS Information Acquisition
Scanning
Handover Decision/Initiation
Security for Intra-RAT Handover
Inter-RAT Handover
6.9.2.1 Inter RAT Topology Acquisition
6.9.2.2 Inter-RAT Mobility
6.9.2.2.1
Scanning
6.9.2.2.1.1
Single radio MS
6.9.2.2.1.2
Multi radio MS
6.9.2.3 Handover Process
6.9.2.4 Security for Inter-RAT Handover
6.10
Radio resource management
6.10.1 Reporting
6.10.2 Interference Management
6.10.2.1 Fractional Frequency Reuse
6.10.2.2 Cell/Sector Coordination
6.11
Power Saving mechanism
6.11.1 Sleep Mode
6.11.2 Idle Mode
6.12
Support of Multi-Hop Relay
6.12.1 Network Topology
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6.12.2 Relay Operation Mode
6.12.2.1 Transparent Mode
6.12.2.2 Non-Transparent Mode
7. Security-Sublayer Description
7.1 Authentication
7.2 Privacy and Confidentiality
7.2.1 User Location Privacy Support
7.2.2 Confidentiality Support for User/Signaling Data
7.3 Key Management
8. RF Requirements
Annex I. Performance Evaluation and Verification
=============================== End of Text Proposal ===============================
Proposed Table of Contents of 802.16m SDD: High-Level Description
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1 Overview
2 References
3 Definitions, Abbreviations and Acronyms
4 System and Protocol Architectures
5. Physical Layer Description
5.1 System Parameters and Terms Definitions
[This section describes the system parameters and terminology required for basic DL/UL transmission.
The DL/UL multiple access schemes for P802.16m may be addressed here for understanding the DL/UL
transmitted signal generation. Furthermore, it may be addressed the ability of 16m for the spectrum
scalability and the difference of parameters/terms between legacy and 16m systems, if necessary.]
5.2 Frame Structure
[In this section, at least the following items should be clarified, i.e.,
• (OFDMA-Based) Multiple Access Schemes
• Duplex Methods: TDD/FD-FDD/HD-FDD
• Spectrum Scalability
• Inter-Operability for Legacy WirelessMAN-OFDMA Reference System
It is well known that the frame structure depends basically on the DL/UL multiple access scheme as well
as the duplex modes. It is desirable for 16m frame structures to maintain the commonality between TDD
and (FD-/HD-)FDD modes without spoiling any possibilities to allow the enhanced features depending on
the duplexing modes. Furthermore, as addressed in the 16m SRD, the legacy support and its disabling
ability should be also clarified here.]
5.3 Channel Coding and Modulation
[This section includes the description of the technical features for the channel coding and modulation
procedures. Specifically, each component for the channel coding chain is specified here such as
randomization, FEC encoding, interleaving, repetition, and modulation (including the various MCS levels),
etc. For example, it is highly recommended to address the following items in this section:
• Variable code rates (higher/lower code rates)
• Large block sizes
• HARQ support
• Coding chain optimization (e.g., padding overhead reduction, MCS table optimization)]
5.4 Multi-Antenna Techniques
[In this section, the multi-antenna transmission schemes with the baseline antenna configuration should
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IEEE C802.16m-07/303
be specified. In addition, an extension to four or two transmit antennas at BS or MS, respectively, also
doesn’t preclude. Even though the commonality of the multi-antenna transmit format in the various
channel conditions is maintained as much as possible, in order to meet the 16m system requirements
such as sector throughput, link budge, cell coverage, and enhanced MBS, the enhanced multi-antenna
transmit formats should support an effective adaptation with the channel condition such as CINR,
antenna correlation, and mobility, etc. This section specifies the open-/closed-loop, single-/multi-user,
DL/UL MIMO schemes including beamforming. Furthermore, the MIMO-related operations, such as
feedback mechanisms and pilot design etc, may be also addressed here.]
5.5 Subcarrier Allocations
[This section describes the time-/frequency(/code, if necessary) physical resource utilization for logical
subchannelization. The basic time- and frequency granularity is clarified for the DL/UL transmission and
then the permutation rules and/or pilot configurations should be specified here. Depending on he
permutation modes, the subcarriers that constitute a logical subchannel can be distributed or adjacent to
each other in order to provide better frequency diversity or multi-user diversity (or beamforming support).
It should be noted that the permutation rules are flexible enough to support distributed/adjacent
allocation in a various time-/frequency resource regions and the pilot structure also provides L1overhead reduction/minimization while meeting the 16m system requirements related to mobility,
channel conditions, cell coverage, MIMO, and enhanced MBS etc.]
5.6 Control Channels and Mechanisms
[• Control channels
In this subsection, the physical/logical channel structures for DL/UL control signals, which requires in
support of MAP, ACK/NACK, power control, broadcast, common SYNC symbol/channels, CQI channels,
channel sounding, bandwidth request, etc, should be specified here.]
• Control mechanisms in PHY
This subsection describes the control mechanisms in physical layer processing. The specific description
can be addressed here for BS synchronization, ranging, power control, UL sounding, bandwidth request,
CQI, Hybrid ARQ support, handover support, measurements, etc, if necessary.]
5.7 Interference Management
[This section includes the specific physical-layer functionalities for the interference managements to
avoid or decrease the inter-cell interference. Even though some technical approaches can be implicitly
incorporated in other sections, the distinctive features on interference management for P802.16m should
be described here. For example, it is desirable to address the following items specifically:
• Fractional frequency reuse
• Cooperation between BSs
• Multi-antenna based IM]
5.8 Enhanced Multicast Broadcast Service
[This section describes the enhanced features of E-MBS for P802.16m. Specifically, the concepts,
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characteristics, and distinctive features of 16m E-MBS should be addressed here in order to support the
wide-area multi-cell MBSFN operation, MBS delivery via a dedicated carrier, a mix of unicast and
broadcast services while meeting the enhanced spectral efficiency in the 16m SRD.]
5.9 Coexistence with Non-802.16 Networks
6. MAC Layer Description
6.1 Service specific CS
[This section describes classification rules that classify packets of new application services enabled in
IEEE 802.16m appropriately, and also it includes improved mechanism for reducing overhead
associated with headers of higher layer protocol.]
6.2 MPDU formats
[This section describes IEEE 802.16m MAC PDU format and the mechanism of MAC PDU
construction/transmission, which includes the improved data transmission methods to reduce the MAC
overhead.]
6.3 ARQ mechanism
[This section includes the ARQ operation to enable the reliable data transfer. The improved mechanism
for ARQ feedback and ARQ retransmission needs to be addressed in this section.]
6.4 MAC support for HARQ
[This section describes MAC signaling for HARQ which includes overall HARQ operation, DL/UL ACK
NACK signaling, and HARQ parameter signaling. It is desirable to address the improved HARQ
mechanism to meet 16m SRD for maximum data latency and user throughput.]
6.5 QoS
[This section includes all data handling mechanisms and details related to scheduling services enabling
new applications. And this section also includes enhanced MAC management signaling to support
different QoS level for different services more efficiently.]
6.6 Network entry and initialization
[This section describes MS network entry and initialization mechanism for IEEE 802.16m. This section
also includes network entry procedure both for legacy support and for disabled legacy support.]
6.7 MAC support for control mechanisms
[MAC support for physical control mechanism as described in the section 5.6 should be addressed in
this section. Physical control mechanism can be BS synchronization, ranging, power control, UL
sounding, bandwidth request, CQI, HARQ, and measurement.]
6.8 MAC support for MBS
[This section includes MAC support for enhanced MBS which is addressed in the section 5.8. In this
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section, MBS channel reselection and switching mechanism between broadcast and unicast services
need to be described to meet the MBS related requirements in 16m SRD.]
6.9 Mobility management
[This section includes intra-RAT handover and inter-RAT handover mechanism for 16m. More
specifically, this section should describe intra-RAT handover mechanism to meet 16m SRD for inter and
intra frequency handover interruption time. And this section should also address handover from/to 16m
BS to/from legacy BS. The following items regarding the inter-RAT handover can be addressed.
• Inter RAT topology acquisition
• HO process considering the single- and multi-radio MS
• Media Independent Handover Function
• Security perspective]
6.10
Radio resource management
[This section includes the following items;
• Reporting mechanism
• MAC support for interference management]
6.11
Power Saving mechanism
[This section includes enhanced power saving functionality to reduce MS’s power consumption for all
application services. This section can describe the enhancement of sleep mode and idle mode. This
section should be described considering the following criteria:
• The transition delay from power saving mode to normal mode shall be reduced rather than
that of reference system.
• Operational complexity and control signaling overhead for power saving mode shall be
reduced.]
6.12
Support of Multi-Hop Relay
7. Security-Sublayer Description
[This section includes the enhanced security functions to satisfy 16m SRD. For this, the following items
should be addressed in this section.
• Authentication
• Privacy and Confidentiality
-
User location privacy support
-
Confidentiality Support for User/Signaling Data
• Key Management]
8. RF Requirements
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Annex I. Performance Evaluation and Verification
[This section describes the system performance results based on the P802.16m SDD in order to verify
that the development of system concepts and technical features is appropriate for P802.16m in
accordance with the system requirements in the P802.16m SRD.]
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