IEEE C802.16n-10/0065_IDC-comment
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Project
IEEE 802.16 Broadband Wireless Access Working Group <http://ieee802.org/16>
Title
Proposed Protocol Structure for IEEE 802.16n
Date
Submitted
2011-01-03
Source(s)
E-mail:
Eunkyung Kim, Sungcheol Chang,
Sungkyung Kim, Hyun Lee, Chulsik Yoon ekkim@etri.re.kr
scchang@etri.re.kr
ETRI
Jaehyuk Jang, Yeongmoon Son, Youngbin yb.chang@samsung.com
Chang, Kyungkyu Kim, Jung Je Son,
ym1004.son@samsung.com
Rakesh Taori
Samsung Electronics
Re:
“IEEE 802.16gman-10/0042,” in response to the agreement by the Gridman TG at session #70
for the 3rd Teleconference
Abstract
Protocol Structure on IEEE 802.16n SRD
Purpose
To discuss and adopt the proposed text in the SRD of 802.16n
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
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<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 Protocol Structure for IEEE 802.16n
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Eunkyung Kim, Sungcheol Chang, Sungkyung Kim, Hyun Lee, Chulsik Yoon
ETRI
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Jaehyuk Jang, Yeongmoon Son, Youngbin Chang, Kyungkyu Kim, Jung Je Son, Rakesh Taori
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IEEE C802.16n-10/0065_IDC-comment
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Samsung Electronics
Editorial notes by Eldad:
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1) Agreed text changes from 0065 are in green.
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2) Text that needs further discussion is [bracketed and highlighted in
yellow]
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Introduction
This document provides protocol structure as an annex of SRD(i.e., IEEE 802.16gman-10/0038r4[1]) in
response to the agreement by the Gridman TG at session #70 for teleconference for SRAM.
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References
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Proposed Protocol Architecture for the 802.16n System Requirement Document
(SRD)
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[1] IEEE 802.16gman-10/0038r4, “(DRAFT) 802.16n System Requirements Documents,” November 2010.
[2] IEEE Std. 802.16-2009, “IEEE Standard for Local and metropolitan area networks; Part 16: Air Interface
for Broadband Wireless Access Systems,” May 2009.
[3] IEEE 802.16m-09/0034r3, “IEEE 802.16m System Description Document (SDD),” June 2010.
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[-------------------------------------------------Start of Text Proposal---------------------------------------------------]
[Remedy: Add the following text in the end of 802.16gman-10/0038r4]
[Some highlighted change and enhancement to the IEEE 802.16m are shown in blue color.]
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Annex C: Protocol Structure
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Annex C.1 IEEE 802.16n Protocol Structure
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Figure XX shows the IEEE 802.16n Protocol Structure. As shown the figure, the IEEE 802.16n MAC is divided
into two sublayers:
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- Convergence Sublayer (CS)
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- Common Part Sublayer (CPS)
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IEEE C802.16n-10/0065_IDC-comment
Network
Network Layer
Layer
CS_SAP
CS_SAP
C_SAP
C_SAP
M_SAP
M_SAP
Convergence
Convergence sublayer
sublayer
Direct
communication
management
Enhanced
multicast
management
Radio
Radio Resource
Resource
Management
Management
Location
Location
management
management
System
System
configuration
configuration
management
management
Relay
Relay Function
Function
Standalone
management
Priority Access
Multi-Carrier
Multi-Carrier
Support
Support
Mobility
Mobility
management
management
Idle
Idle Mode
Mode
management
management
MBS
MBS
Multi-mode
management
Path management
Self-Organization
Self-Organization
Network
Network entry
entry
managment
managment
Security
Security
management
management
Service
Service Flow
Flow and
and
Connection
Connection
Management
Management
Classification
Classification
Header
Header suppression
suppression
MAC_SAP
MAC_SAP
Radio Resource Control and Management
(RRCM)
Fragmentation
Fragmentation and
and Packing
Packing
Medium Access Control (MAC)
QoS
QoS
Multi-Radio
Multi-Radio
Coexistence
Coexistence
ARQ
ARQ
Sleep
Sleep Mode
Mode
Management
Management
Scheduling
Scheduling and
and
Resource
Resource Multiplexing
Multiplexing
MAC
MAC PDU
PDU formation
formation
PHY
PHY control
control
Data
Data Forwarding
Forwarding
Interference
Interference
Management
Management
Ranging
Ranging
Encryption
Encryption
Link
Link Adaptation
Adaptation (CQI,
(CQI,
HARQ,
HARQ, power
power control)
control)
Control
Control signaling
signaling
Control Plane
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Data Plane
Physical
Physical Layer
Layer
Figure XX: IEEE 802.16n Protocol Structure
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The MAC Common Part Sublayer is further classified into Radio Resource Control and Management (RRCM)
functions and medium access control (MAC) functions. The RRCM functions fully reside on the control plane.
The functions reside on the control and data planes. The RRCM functions include several functional blocks that
are related to radio resource functions such as:
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- Radio Resource Management: Indicates a block which adjusts radio network parameters based on the
traffic load, and also includes functions of load control (load balancing), admission, and interference
control.
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- Mobility Management: Indicates a block which supports functions related to Intra-RAT/Inter-RAT
handover.
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- Network-entry Management: Indicates a block which is in charge of initialization and access procedures.
The Network-entry Management block may generate management messages which are needed during
access procedures, i.e., ranging, basic capability negotiation, registration, and so on.
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- Location Management: Indicates a block which is in charge of supporting location based service (LBS).
The Location Management block may generate messages including the LBS information.
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- Idle Mode Management: Indicates a block which manages location update operation during idle mode.
The Idle Mode Management block controls idle mode operation, and generates the paging advertisement
message based on paging message from paging controller in the core network side.
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- System Configuration Management: Indicates a block which manages system configuration parameters,
and transmits system configuration information to the HR-MS/HR-RS.
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- MBS: Indicates a block which controls management messages and data associated with broadcasting
and/or multicasting service.
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- Service Flow and Connection Management: Indicates a block which allocates connection identifier
during access/handover service flow creation procedures.
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- Self Organization: Indicates a block which performs functions to support self-configuration and selfoptimization mechanisms.
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- Multi-Carrier: Indicates a block which enables a common MAC entity to control a PHY spanning over
multiple frequency channels. The channels may be of different bandwidths (e.g. 5, 10 and 20 MHz) on
contiguous or non-contiguous frequency bands. The channels may be of the same or different duplexing
modes, e.g. FDD, TDD, or a mix of bidirectional and broadcast only carriers. For contiguous frequency
channels, the overlapped guard sub-carriers are aligned in frequency domain in order to be used for data
transmission.
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- HR-MS Forwarding Management: Indicates a block which supports HR-MS Forwarding meeting the
requirements described in Section 6.1.3.2.]
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- Standalone Management: Indicates a block which supports standalone operation of immunizing the loss
of HR-BS’ backbone connectivity meeting the requirements described in Section 6.1.2.1.
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- Multi-Mode [Management] [Support]: Indicates a block which supports multi-mode operation meeting
the requirements described in Section 6.1.1.
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- Enhanced Multicast: Indicates a block which controls management messages and data associated with
multicast communication meeting the requirements described in Section 6.2.1.
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- Path Management: Indicates a block which controls and operates functionalities, including path
discovery and path management meeting the requirements described in Section 6.1.3.2, 6.1.3.3 and
6.1.3.4, respectively.
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- Priority Access Management: Indicates a block which manages a priority access and connection meeting
the requirements described in Section 6.2.3.
Security Management: Indicates a block which is in charge of authentication/authorization and key
management for secure communication. Traffic encryption/decryption and authentication are performed
using a managed encryption key. The Security Management block also supports security operation
meeting the requirements described in Section 6.1.4.
- Relay Function: Indicates a block which includes functions to support relay mechanisms as described in
section 6,1,1, 6.1.2, and 6.1.3.
- [Direct Communication Management: Indicates a block which supports HR-MS to HR-MS direct
communication meeting the requirements described in Section 6.1.3.1.
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The control plane part of the Medium Access Control (MAC) functional group includes functional blocks which
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IEEE C802.16n-10/0065_IDC-comment
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are related to the physical layer and link controls such as:
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- PHY Control: Indicates a block which handles PHY signaling such as ranging, measurement/feedback
(CQI), and HARQ ACK/NACK. Based on CQI and HARQ ACK/NACK, the PHY Control block
estimates channel quality as seen by the HR-MS, and performs link adaptation via adjusting modulation
and coding scheme (MCS), and/or power level. In the ranging procedure, PHY Control block does UL
synchronization with power adjustment, frequency offset and timing offset estimation.
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- Control Signaling: Indicates a block which generates resource allocation messages.
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- Sleep Mode Management: Indicates a block which handles sleep mode operation. The Sleep Mode
Management block may also generate MAC signaling relate to sleep operation, and may communicate
with Scheduling and Resource Multiplexing block in order to operate properly according to sleep period.
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- QoS: Indicates a block which handles QoS management based on QoS parameters input from Service
Flow and Connection Management block for each connection.
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- Scheduling and Resource Multiplexing: Indicates a block which schedules and multiplexes packets
based on properties of connections. In order to reflect properties of connections, the Scheduling and
Resource Multiplexing block receives QoS information from QoS block for each connection.
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- Multi-Radio Coexistence: Indicates a block which performs functions to support concurrent operations
of IEEE 802.16m and non-IEEE 802.16m radios collocated on the same mobile station.
- Data Forwarding: Indicates a block which performs forwarding functions when an HR-RS is present on
the path between an HR-BS and an HR-MS, or when an HR-MS is present on the path between an HRMS and an HR-BS meeting the requirements described in Section 6.1.3.2.
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- Interference Management: Indicates a block which performs functions to manage the inter-cell/sector
interference. The operations may include:
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 MAC layer operation
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Interference measurement/assessment report sent via MAC signaling
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Interference mitigation by scheduling and flexible frequency reuse
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 PHY layer operation
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Transmit power control
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Interference randomization
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Interference cancellation
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Interference measurement
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Tx beamforming/precoding
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- Inter-BS Coordination: Indicates a block which performs functions to coordinate the actions of multiple
HR-BSs by exchanging information, e.g., interference management. The functions include procedures to
exchange information for e.g., interference management between the HR-BSs by backbone signaling
and by HR-MS MAC messaging. The information may include interference characteristics, e.g.
interference measurement results, etc.
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The data plane includes the following MAC functions:
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- Fragmentation/Packing: Indicates a block which performs fragmenting or packing MSDUs based on
scheduling results from Scheduling and Resource Multiplexing block.
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- ARQ: Indicates a block which handles MAC ARQ function. For ARQ-enabled connections, a logical
ARQ block is generated from fragmented or packed MSDUs of the same flow. The ARQ logical blocks
are sequentially numbered. The ARQ block may also generate ARQ management messages such as
feedback message (ACK/NACK information).
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- MAC PDU formation: Indicates a block which constructs MAC control data unit (PDU) so that HR
stations can transmit user traffic or management messages into PHY channel. MAC PDU formation
block adds MAC header and may add sub-headers. Based on input from the security management block,
the encryption block can encrypt user traffic or management message by a managed encryption key.
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[-------------------------------------------------End of Text Proposal----------------------------------------------------]
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