7. QoS Provisioning
Dr. David Soldani([email protected], tel. +358.50.3633527)S-38.3215 Special Course on Networking Technology for Ph.D. students at TKK
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Outline
Radio, core and transport QoS provisioningService and mobile QoS provisioningQoS provisioning tools
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Business Management Systems
Service Management Systems
Network Management Systems
Element Management Systems
Managing technologiesManaging networks
Managing servicestransparently
Managing elements
Incr
ease
d co
mpl
exity
Incr
ease
d bu
sine
ss o
ppor
tuni
ty
Managing ProfitBusiness Management Systems
Service Management Systems
Network Management Systems
Element Management Systems
Managing technologiesManaging networks
Managing servicestransparently
Managing elements
Incr
ease
d co
mpl
exity
Incr
ease
d bu
sine
ss o
ppor
tuni
ty
Managing Profit
TMN model for management hierarchy
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Possible interfaces:1) Between Network Elements (NE) and Element Manager (EM) of a single PLMN organisation2) Between EM and Network Manager (NM) of a single PLMN organisation3) Between NM and Enterprise Systems (ES) of a single PLMN organisation4) Between NMSs of a single PLMN organisation5) Between ES and NM of different PLMN organisations6) Between NEs
Organization BOrganization A
Enterprise Systems
EMOpe
ratio
ns S
yste
ms
NMNM
NENEEM
EM
NENE
4
1 1 1
2
2 2 2 2
5
5
6
EM
NE
1
3 3
Itf-N
TMF management hierarchy
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BSIu-PS GiUu GnUE RNC/BSC SGSN GGSN
(PEP)
HLRHLR
IP QoS
DLL CoS
Radio QoS
IP QoS
IP QoS
IP QoS
DLL CoS
CN QoSRadio QoS CN QoS
IP QoS
DLL CoS
IP QoS
DLL CoS
Radio QoS
IP QoS
DLL CoSDLL CoS
Radio QoS
IP QoS IP QoS IP QoS
7652 3 4
81
91011121314
IMS
Network Element Layer
Element Management Layer
PDF(“Authorised QoS” for the bearer)
GoAF
(SDP QoS Requirements)
AF Client
NML QoS Provisioning = Policy Repository
EML QoS Provisioning
Itf-Po
Itf-N
To other domains
Iub
DLL CoS DLL CoS
QoS mechanisms and management
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Radio, core and transportProvisioning of differentiation mechanisms
Radio QoS functions (UE, URAN/GERAN, SGSN)CN QoS functions (SGSN, GGSN)Policy Decision Function (IMS)IP QoS functionsData link layer functions
Provisioning of QoS mapping functionsService applications – 3GPP QoS parameters3GPP QoS parameters – IP QoS parameters (includes Edge function)IP QoS parameters – Class of service parameters
(The mapping of ‘Authorized QoS’ onto UMTS QoS is specified in 3GPP)
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Classifier
Priority Schedule
Algorithm Drop Action
AlwaysDrop Action
CountAction Queue
Meter
Other classes
EF
conforming
non-conforming
Example of DiffServ EF policy
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Prio
rity
MMS BrowsingVideo
streaming PoCCorporate
VPN
Other Application
Servers
FW/BGGGSN
BSC/RNC
2G/3GSGSN
Operator Application
Servers
Internet
Bearer 0 (non-guaranteed bit rate, priority 10, TC = Background, ARP = 3)
Bearer 1 (non-guaranteed bit rate, priority 9, TC = Interactive, ARP = 3)
Bearer 2 (non-guaranteed bit rate, priority 8, TC = Interactive, ARP = 2)
Bearer 3 (non-guaranteed bit rate, priority 7, TC = Interactive, ARP = 1)
Bearer 4 (guaranteed bit rate, priority 6 , TC = Streaming , ARP = 3 )
Bearer 5 (guaranteed bit rate, priority 5 , TC = Streaming , ARP = 2 )
Bearer 6 (guaranteed bit rate, priority 4 , TC = Streaming , ARP = 1 )
Bearer 7 (guaranteed bit rate, priority 3, TC = Conversational, ARP = 3)
Bearer 8 (guaranteed bit rate, priority 2, TC = Conversational, ARP = 2)Bearer 9 (guaranteed bit rate, priority 1, TC = Conversational, ARP = 1)
IMS
ContentSharing
Instant Messaging Presence
Video Call Gaming
Service QoS provisioning
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Priority ‘pipe’ definition
Subset of QoS attributes that allow an adequate number of priority ‘pipes’
UMTS traffic class (TC)Traffic handling priority (THP)Allocation/retention priority (ARP)Maximum bit rateGuaranteed bit rate
(Management concept!)
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Service provisioning in (E)GPRS/WCDMA
QoS differentiation can be providedby placing applications with delay-critical QoS requirements behind different APNs and setting the different QoS parameters per subscriber and APN from the HLR; orfor QoS-aware applications, by terminal clients activating parallel primary or secondary PDP contexts (with different QoS parameters) using the same APN
(According to 3GPP R99, bit rate guarantees are possible only for QoS-aware clients and terminals.)
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Mobile terminal QoS provisioning
Mechanisms and protocols that make an application on a mobile device aware of which APN and hence associated QoS to use and, for an application on QoS-aware devices, what QoS to ask for
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QoS provisioning tools
Configuration managementPolicy based QoS management
Policy management toolPolicy decision point (PDP) or policy consumerPolicy enforcement point (PEP)
Policy = rule with conditions and actionsService configuration
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Service creation and deployment
Centralized service modeling,creation and deployment
Centralized Access Pointprovisioning
Network and Service Assurance
Network Monitoring
Reporting
Service Probing
Service Monitoring
Device Management
Device detection
Remote configuration of handsets
Subscription Management
Service Activation
End-user Self-service
MobileServices
Example of Nokia solution for IMS
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ReferencesD. Soldani, M. Li and R. Cuny (eds.), QoS and QoE Management in UMTS Cellular Systems, John Wiley and Sons, June, 2006, 460 pp.
http://eu.wiley.com/WileyCDA/WileyTitle/productCd-0470016396.htmlhttp://www.connecting.nokia.com/NOKIA/nns.nsf/a/78786C61AB5A7C5AC225718F0026BAA3(Contact Mr. Geoff Farrell @ Wiley [email protected] )
See also: http://lib.tkk.fi/Diss/2005/isbn9512278340/
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