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WiMAX Management
29/09/2006
Kohei ISEDA
FUJITSU LABORATOIRES LTD.
WiMAX
Worldwide Interoperability for Microwave Access
Fixed access
(Last one mile)
Nomadic
MAN
Portable
Full mobile
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Network Architecture
IEEE802.16 & WiMAXForum
WiMAXForum NWG
SS
AAA
BS
ASN-GW
MS
CSN (Connectivity
Service Network)
ASN (Access Service
Network)
MS
BS
MS
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Standards
IEEE
802.16-2004: Fixed Broadband Wireless Access
802.16e-2005: Amendment for Mobile Access
802.16g: Management Plane Procedures and Services
802.16f: MIB for Fixed Broadband Wireless Access
802.16i: MIB Extension for Mobile Access
802.16k: Amendment for Bridge (802.1D)
802.16h: Amendment for Improved Coexistence
Mechanism
802.16j: Amendment for Mobile Multi-hop Relay
WiMAX Forum
NWG Stage2,3: WiMAX End-to-End Network Systems
Architecture
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Characteristics
OFDMA (Orthogonal Frequency Division Multiple
Access)
SS(MS) synchronized to BS
BS assigns radio resource to SS(MS) in frequency and time
domains
Interference at same frequency
AMC (Adaptive Modulation and Coding)
BS selects modulation and coding schema, according to
uplink and downlink qualities
QoS
BS assigns radio resource to SS(MS) in different
scheduling methods
BS: Base Station
SS: Subscriber Station
MS: Mobile Station
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Characteristics (cont’d)
Security
Multiple authentication methods
Policy base authorization management
Mobility
Multiple handover methods
Sleep, Idle, Paging
Broadcast/Multicast
Single-BS MBS, Multi-BS MBS
Others to be added
Mobile Multihop Relay (802.16j)
Support Media Independent Handover (802.21)
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NCMS in WiMAX System
Management and control architecture in NE
Scope of 802.16 Standard
802.16 entity
SAP: Service Access Point
CS_SAP
AAA Services
M_SAP
MAC_SAP
RF Transmission
and
Synchronization
Services
MAC Common
Part Sublayer
(MAC CPS)
Security Sublayer
PHY_SAP
Management
Information
Base (MIB)
Physical Layer
(PHY)
Data Plane
Service Flow Id,
Connection Id
Management
Services
C_SAP
MAC
Service Specific
Convergence
Sublayer (CS)
PHY
Network Address
Management
Services
Management/
Control Plane
Paging and Idle
Mode Services
Inter-Working
Services
Security Services
Mobility
Management
Services
Multimedia
Session
Management
Services
Gateway and
Router Services
Media
Independent
Handover
Services
Network
Management
Services
Radio Resource
Management
Services
NCMS: Network Control and Management System
(Source: IEEE 802.16g-05/008r2, Dec. 2005)
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IEEE802.16g
Message and Flow between M/C planes and NCMS
M_SAP (Management Service Access Point)
• System configuration
• Monitoring statistics
• Notifications/Triggers
• Multi-mode interface management
C_SAP (Control Service Access Point)
• Handovers (e.g. notification of HO request)
• Idle mode mobility management (e.g. entering idle mode)
• Subscriber and session management (e.g. session setup)
• Radio resource management
• AAA service signaling (e.g. EAP payload)
• Media independent handover function services
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IEEE802.16g (cont'd)
Others
GPCS (Generic Packet Convergence Sublayer) SAP
• Parameters to define flow and data
• Primitives for data transfer and receive
MAC management messages
- to transfer MIH (Media Independent Handover)
- to inform current NSP
- to query, notify and set Information Element ?
TLV for GPCS, MIH and Service Information
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Management RM (802.16f)
Management reference model for FWA
SS #1
Management agent
Managed
node
Interface
Reference
Point 1
SNMP
MIB
PHY
MAC
Secondary
management
connection
SS #1
Management agent
Managed
node
BS #1
Management proxy
Managed
node
IP cloud
MIB
PHY
Network
Management
System
MAC
MIB
PHY
Service
Flow DB
MAC
(Source: IEEE 802.16f-2005)
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802.16f MIB
MIB for Interface Reference Point 1
wmanDevMib(1.0.8802.16.1)
wmanIfMib
wmanIfBsObjects
wmanDevBsObjects
wmanIfBsPacketCs
wmanDevBsSoftwareUpgradeTable
wmanDevBsNotification
wmanIfBsCps
wmanIfBsPkmObjects
wmanDevSsObjects
wmanIfBsNotification
wmanDevSsConfigFileEncodingTable
wmanDevSsNotification
wmanIfBsPhy
wmanDevCommonObjects
wmanIfSsObjects
wmanDevCmnEventLog
wmanIfSsCps
wmanDevCmnSNMPAgent
wmanIfSsPkmObjects
wmanDevCmnDeviceConfig
wmanIfSsNotification
wmanIfSsPhy
Not defined in 802.16i
wmanIfCommonObjects
wmanIfCmnPacketCs
wmanIfCmnCps
wmanIfCmnPkmObjects
(Source: IEEE 802.16f-2005)
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Management RM (802.16i)
Organization A
Organization B
Enterprise Systems
Operations
Systems
3
NM
2
Interface
Reference
Point 1
NM
2
2
EM
1
1
NE
3
4
EM
6
5
2
EM
1
5
Interface
Reference
Point 2
1
EM
NE
NE
NE
NE
Mobile BWA network management reference model
(Source: IEEE 802.16i-06/001r2, May 2006)
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IEEE802.16i
Configuration model
Information Object for Interface Reference Point 1 & 2
Technology independent modelling
SNMP MIB for Interface Reference Point 1 for mobile
extension
One BS sector = 1 interface
Negotiate FFT size and CP size at network entry
Identify standard (802.16e SS, MS, 802.16 SS) at the entry
Standard-based technology-dependent modelling
802.16f will be merged with 16i
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Information Object Class
<<IOC>>
Top (from 32.622)
<<IOC>>
WmanBSRelation
32.622: 3GPP TS 32.622
S.S0028-002-C: 3GPP2 S.S0028-002-C
<<IOC>>
ExternalOC (from S.S0028-002-C)
<<IOC>>
ManagedElement (from 32.622)
<<IOC>>
SubNetwork (from 32.622)
<<IOC>>
ManagedFunction (from 32.622)
<<IOC>>
ExternalWmanBSFunction
<<IOC>>
WmanManagedElement
<<IOC>>
WmanSubNetwork
<<IOC>>
WmanManagedFunction
<<IOC>>
Top (from 32.622)
42 subclasses
<<IOC>>
BsMacPacketCs
<<IOC>>
BsMacCps
<<IOC>>
BsPhy
<<IOC>>
BsOfdm_F
<<IOC>>
BsSecurity
<<IOC>>
BsOfdma
(Source: IEEE 802.16i-06/001r2, May 2006)
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802.16i MIB
wman2IfBsCps
wman2IfMib
wman2IfBsRegisteredSsTable
wman2IfBsObjects
wman2IfBsConfigurationTable
wman2IfBsPacketCs
wman2IfBsChannelMeasurementTable
wman2IfBsCps
wman2IfBsCapabilities
wman2IfBsPkmObjects
wman2IfBsSsReqCapabilitiesTable
wman2IfBsNotification
wman2IfBsSsRspCapabilitiesTable
wman2IfBsPhy
wman2IfBsBasicCapabilitiesTable
wman2IfSsObjects
wman2IfBsCapabilitiesConfigTable
wman2IfSsCps
wman2IfActionTable
wman2IfSsPkmObjects
wman2IfBsMsPowerSavingStatusTable (2 Objects)
wman2IfSsNotification
wman2IfBsMsPowerSavingClassesTable (11 Objects)
wman2IfSsPhy
wman2IfBsMsSleepModeStatisticsTable (5 Objects)
wman2IfCommonObjects
Extension of 16i
wman2IfCmnPacketCs
wman2IfCmnCps
wman2IfCmnPkmObjects
(Source: IEEE 802.16i-06/001r2, May 2006)
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802.16i MIB (cont’d)
wman2IfBsPhy
wman2IfBsOfdmPhy
wman2IfBsOfdmUplinkChannelTable
wman2IfBsOfdmDownlinkChannelTable
wman2IfBsOfdmUcdBurstProfileTable
wman2IfBsOfdmDcdBurstProfileTable
wman2IfBsOfdmConfigurationTable
wman2IfBsSsOfdmReqCapabilitiesTable
wman2IfBsSsOfdmRspCapabilitiesTable
wman2IfBsOfdmCapabilitesTable
wman2IfBsOfdmCapabilitiesConfigTable
wman2IfBsOfdmaPhy
wman2IfBsOfdmaUplinkChannelTable
wman2IfBsOfdmaDownlinkChannelTable
wman2IfBsOfdmaUcdBurstProfileTable
wman2IfBsOfdmaDcdBurstProfileTable
Extension of 16i
wman2IfBsOfdmaConfigurationTable (0 Objects)
wman2IfBsSs(Ms?)OfdmaReqCapabilitiesTable (5 Objects)
wman2IfBsSs(Ms?)OfdmaRspCapabilitiesTable (5 Objects)
wman2IfBsOfdmaCapabilitesTable (5 Objects)
wman2IfBsOfdmaCapabilitiesConfigTable (5 Objects)
(Source: IEEE 802.16i-06/001r2, May 2006)
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802.16i MIB (cont’d)
Proposed Objects for Mobility
wman(2?)IfBsMobility
wman(2?)IfBsMobility
wman(2?)IfBsHandoverconfiguraion (13 Objects)
wman(2?)IfBsNeighbourBsTable (13 Objects)
wman(2?)IfBsPagingGroupTable (13 Objects)
(Source: IEEE 802.16i-06/001r2, May 2006)
Expected objects
Objects related to OFDMA configuration with power control
Objects related to PKMv2
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Other Managements
Network management layer
Configuration management
• Management of BS synchronization
• Software down load for SS and MS
• Management of configuration
- for wired and wireless QoS mechanism
- for wired and wireless broadcast/multicast mechanism
• Interference management (radio resource management)
Performance management
• Integrated management for wireless and wired
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Other Managements (cont’d)
Service management layer
Configuration management
• Configuration for multiple authentication methods
Accounting
• Management of accounting policy in ASN-GW for mobile
Security management
• Management of security policy
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Conclusion
WiMAX has different Characteristics with WLAN
Synchronized system
QoS
Mobility
Broadcast/Multicast
Standards
Element management for mobile will finish soon
Network management is still open
To accommodate new features (MBS, MMR, MIH, , ) needs
some extension, especially in network management layer
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