IEEE 802.16m Network Reference Model, Functional Architecture, and Protocol Architecture
Document Number:
IEEE C802.16m-07/304r1
Date Submitted:
2007-11-08.
Source:
Ronny (Yong-Ho) Kim (ronnykim@lge.com),
Kiseon Ryu (ksryu@lge.com),
Jin Sam Kwak (samji@lge.com),
Suk Woo Lee (sugoo@lge.com),
Minseok Oh (minoh@lge.com)
LG Electronics, Inc.
Re:
TGm Call for Contribution on SDD, IEEE 802.16m-07/040
Abstract :
Discussion on IEEE 802.16m network reference model, functional architecture, and protocol architecture in the 802.16m SDD
Purpose:
To adopt this proposal as a IEEE 802.16m network reference model, functional architecture, and protocol architecture in the 802.16m SDD
Notice:
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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.
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Background (1/2)
• IEEE 802.16m System Requirement Document specifies as
follows;
– IEEE 802.16m shall provide continuing support and interoperability for
legacy WirelessMAN-OFDMA equipment, including MSs and BSs.
– IEEE 802.16m shall provide the ability to disable legacy support.
– IEEE 802.16m shall provide support for handover with other RATs.
However, an IEEE 802.16m MS is not required to be multi-mode.
IEEE 802.16m shall provide service continuity during handover for
both inter-RAT and intra-RAT handover.
• Based on these requirement, IEEE 802.16m network reference
model and functional architecture shall be designed so as to
provide the ability to enable/disable legacy support and to
support inter-RAT and intra-RAT handover.
Background (2/2)
• 16m Network Reference Model is desirable to include the
interface and reference point for both legacy support and
disabled legacy support.
• 16m Network Reference Model is desirable to keep the NCMS
for the network control and management to be consistent with
the existing current 16 standard.
• In case of legacy support, the interface between 16m MS and
16m BS should contains both legacy functions to be re-used,
and the enhanced functions newly defined in 16m.
Proposed 16m Network Reference Model
Legacy MS
Legacy BS
16m MS
Um
I
16m BS
NCMS
NCMS
U
Im
16m BS
Um
NCMS
NCMS
Um
16m MS
O
Non-802.16 Radio
Access Technology
U
NCMS
NCMS
16m Network - Legacy Support
16m Network – Disabled Legacy Support
Out of 802.16m Scope
Proposed Reference Point
Reference Point
Interface
Description
U
Legacy MS - Legacy BS
Legacy Air Interface
Um
16m MS - 16m BS
16m Air Interface
I
Legacy BS - Legacy BS
Interface between Legacy BSs
Im
16m BS - 16m BS
Interface between 16m BSs
16m BS - Non 802.16 Network
Interface between 16m BS and Non
802.16 networks to support InterRAT HO
O
Note) The interface between 16m MS/BS and legacy BS/MS shall be defined as the same with the reference point U.
The interface between 16m BS and legacy BS shall be defined as the same with the reference point I.
Quality of Service
Power Saving
Intra-RAT Handover
Security
Radio Link Control
Access Control
Physical Layer Protocol
Um
Connection Management
Quality of Service
Power Saving
Intra-RAT Handover
Security
Radio Link Control
O
Access Control
Physical Layer Protocol
• 16m Functions – Disabled Legacy Support : A set of functions of 16m MS/BS in a network where the legacy support is disabled
• 16m Functions – Legacy Support : A set of functions of 16m MS/BS in a network where the legacy support is enabled
Note) The 16m functions in the overlapped region are commonly used in both cases.
Inter-RAT Handover
Radio Resource Management
NCMS
Inter-RAT Handover
16m Functions - Legacy Support
Connection Management
16m Functions - Disabled Legacy Support
Radio Resource Management
16m Functions - Legacy Support
16m Functions - Disabled Legacy Support
Inter-RAT Handover
M_SAP
16m BS
C_SAP
16m MS
Non-802.16 RAT
Proposed Functional Architecture
Preamble
New Zone #A
New Zone #E
16m Zone #C





New Zone #C
New Zone #B
FCHnew
New Zone #D
DL-MAPnew
Preamble
16m Zone #B
Legacy Zone #C
16m Zone #B
16m Zone #D
MAPnew
Preamble
16m BW
Time

<Disabled Legacy Support>
Preamble
Preamble
Allocated BW up to 40MHz
802.16e Zone #C
Zone #C
New Zone #A
Legacy Zone #2
Smooth
Migration

– Enhanced system configuration/control information
New Zone #C

New Zone16m
#B
802.16e Zone #2
DL-MAP†
Preamble
16m Zone #E
FCH†

Preamble
Preamble
Preamble
16m Zone #A
16m Zone #A
Freq.

FCH†

<Legacy Support>
Preamble
MAP†
Freq.

802.16e BW
Preamble
Time


Allocated BW up Preamble
to 40MHz
Time

Legacy BW

16m BW
Legacy Support
• Conceptual Approach
Time
Freq.
FCHnew
Freq.
• FCH† / MAP† : Enhanced FCH/MAP for supporting 802.16m with legacy support
• FCHnew/ MAPnew : New FCH/MAP for supporting 802.16m without legacy support
• 16m Zone #k : New permutation zone for 802.16m without legacy support
Overall Protocol Architecture
• Main Functionalities per Layer
Upper Layers
Scope of 802.16m
CS SAP
Classifier
MAC CPS
MAC
MAC SAP
Access Control
Radio Resource
Management
Connection
Management
Mobility
Management
MBS
QoS
Security
Sublayer
Power Saving
RLC
PHY SAP
PHY
NCMS
Management
Entity
Management
Information
Base
(MIB)
C_SAP
CS
M_SAP
ROHC
Physical Layer Protocol
Data/Control Plane
Management Plane
MAC Functionalities
• MAC-Function Connectivity : High-Level View
Connection
Management
QoS
Management
Inter-Connection
of MAC Functions
MBS
Power Control
Interference
Management
Link Adaptation
Radio
Resource
Management
Scheduling
HARQ
Radio Link
Control
ARQ
Sleep Mode
Idle Mode
Power
Saving
Ranging
Bandwidth
Request
Access
Control
Handover
Inter-RAT HO
Encryption
Key Management
Authentication
Intra-RAT HO
Mobility
Management
Security