WiBro Network Architecture - KNOM
WiBro Network Architecture - KNOM
WiBro Network Architecture - KNOM
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ContentsIntroduction to <strong>WiBro</strong> SystemsDefinitionPositioningSystem SpecificationProtocol Stack<strong>Network</strong> Reference ModelImplementation of <strong>WiBro</strong> <strong>Network</strong>Key Requirements<strong>Network</strong> Elements<strong>Network</strong> Configurations and Comparison<strong>WiBro</strong> <strong>Network</strong> <strong>Architecture</strong>A trend of StandardizationTTA PG302 : Service <strong>Network</strong> WGIEEE802.16f/g© SAMSUNG Electronics Co., Ltd.2/7
Introduction to <strong>WiBro</strong> Systems© SAMSUNG Electronics Co., Ltd.3/7
DefinitionWireless Broadband : <strong>WiBro</strong>3.5G(Generation) Wireless Mobile Communication SystemHigh-speed Portable InternetBased on TTA PG302 and IEEE802.16d/eMobilityHigh DataRate<strong>WiBro</strong>Low CostAnytime,Anywhere© SAMSUNG Electronics Co., Ltd.4/7
Positioning<strong>WiBro</strong> in aperture between 3G and 4GMobilityHigh MobilityThe next GenerationMultimedia ServiceCellular PCS(2G)IMT2000(3G)<strong>WiBro</strong>FixedWLL2.4GHz Wireless LANADSL/HFC/B-WLLUser Data Rate© SAMSUNG Electronics Co., Ltd.5/7
System SpecificationTDMA -> CDMA -> OFDM(A) ?Toward 4G Mobile Communication SystemsMajor SystemParametersRadio Access RequirementDuplexing Frequency ReuseTDD1FactorMultipleAccessChannelBWOFDMA8.75 [MHz][Mobility ≤ 60 [Km/h][Service Coverage ≤ 1 [Km][Spectral Efficiency[bps/Hz/cell(sector)]Max. DL / UL = 6 / 2Aver. DL / UL = 2 / 1Handoff ≤ 150 [ms][Throughput(per user)Max. DL / UL = 3 / 1 [Mbps]Min. DL / UL = 512 / 128 [Kbps]© SAMSUNG Electronics Co., Ltd.6/7
Protocol StackPhysical Layer and MAC layerUpper layer functionalities for MobilityCore network interface<strong>WiBro</strong>802.16 eMobility(HO, (HO, Sleep mode, Idle Idle mode)SCa SCaMAC MACOFDMOFDMA802.16 a/d© SAMSUNG Electronics Co., Ltd.Scalability, H-ARQ, MIMO etc.7/7
<strong>Network</strong> Reference ModelAccess <strong>Network</strong> (PSS-RAS)Core <strong>Network</strong>(RAS-ACR, ACR-ACR)Public IP <strong>Network</strong>Operator’sIP <strong>Network</strong>HAAAA……ACRACRACR : Access Control RouterRAS : Radio Access StationRASRASRASRASPSS : Personal Subscriber StationPSSPSS© SAMSUNG Electronics Co., Ltd.PSSPSS8/7
Implementation of <strong>WiBro</strong> Systems© SAMSUNG Electronics Co., Ltd.9/7
Key RequirementsRequirementsFlexible <strong>Network</strong> <strong>Architecture</strong>for multiple market segments(Scalability in Cost, Coverageand Capacity)Service Compatibility betweennetworks and devicesBetter Service Quality3G Inter-working© SAMSUNG Electronics Co., Ltd.Current Design DirectionsPublic Macro-cell – Mobility & Coverage drivenPublic Hot-zone – Throughput & Service drivenPrivate (Home/Enterprise) – Cost, Easy to deployCommon User Authentication and securityCapability and Preference Negotiation in L2 levelVoice Service- Seamless Active Handoff (break time < 40msec)- Idle mode/paging, FCS supportData Service- High throughput & QoS support- Stable operation at saturation point and CAC- Seamless Active L2 HO (packet lossless)3G Circuit Service Availability while connected to<strong>WiBro</strong>Flexible network configuration but efficient 3Gsignaling10/7
<strong>Network</strong> Elements (1/2)ACR• Session Information Store• Location Tracking & Paging• Session Migration• Interface with IP Core• MAC Signaling• Transport Connection Control• L2 Handoff ControlASN (Access Serving Node)SC/MMAPC(AP Controller)MacControlPacketClassifierHeaderCompressARQtunnelAP(Access Point)tunnelRAS• MAC scheduler• Modem ControlAirLinkControlMAC PDUProcessEncryption/PHY© SAMSUNG Electronics Co., Ltd.11/7
<strong>Network</strong> Elements (2/2)APP(Air Physical Processing)802.16 d/e PHYDelay sensitive MAC (including scheduling)AMP(Air MAC Processing)802.16 d/e delay insensitive MAC (e.g., headersuppression, key management, ARQ)L2 Handoff ControlCNP(Core <strong>Network</strong> Processing)Inter-working with core networks (e.g., DHCP, HA, AAA)Session information handling & location tracking (i.e.,SC/MM : Session Control and Mobility Management)© SAMSUNG Electronics Co., Ltd.12/7
<strong>Network</strong> Configuration (1/4)CNP +SC/MMAMPAPAPPASNAPCAPIP Core<strong>Network</strong>APCAP<strong>Network</strong>ElementsConfigurationPros.Cons.Type IASN, APC, AP1 ~ 3 APC/ASN320 AP/APC320 ~960 AP/ASNSeamless handoverLarge subnetcoverage3-tier architectureHigh-speedbackhaul requiredType ITargetMarketCentralized-MobilePublic (Macro-cell)© SAMSUNG Electronics Co., Ltd.13/7
<strong>Network</strong> Configuration (2/4)<strong>Network</strong>ElementsACR, APType IIAMP + CNP +SC/MMIP<strong>Network</strong>Configuration160~240 AP/ACRACRPros.Seamless handoverCons.High-speed backhaulrequiredAPAPPAPTargetMarketCentralized-MobilePublic(Micro/Hot Zone)Type II© SAMSUNG Electronics Co., Ltd.14/7
<strong>Network</strong> Configuration (3/4)IP<strong>Network</strong><strong>Network</strong>ElementsASN, APSType IIICNP + SC/MMASNConfiguration320 ~ 960 APS/ASNPros.Simple architectureAPSAPP + AMPAPSCons.Non-seamlesshandoverType IIITargetMarketDistributed-PortableEnterprise/Home© SAMSUNG Electronics Co., Ltd.15/7
<strong>Network</strong> Configuration (4/4)<strong>Network</strong>ElementsASN, APRType IVIP<strong>Network</strong>Configuration320 ~ 960 APR/ASNCNP + SC/MMASNPros.Simple architectureLocal routingcapabilityAPRAPRCons.Non-seamlesshandoverAPP + AMP + FATargetMarketDistributed-PortableEnterprise/HomeType IV© SAMSUNG Electronics Co., Ltd.16/7
<strong>Network</strong> Configuration ComparisonType I Type II Type III Type IV<strong>Network</strong>ElementsASN, APC, AP ACR, AP ASN, APS ASN, APRConfig.1~3 APC/ASN320 AP/APC160~240 AP/ACR 320 ~ 960APS/ASN320 ~ 960APR/ASN320~960 AP/ASNPros.Seamless HOLarge subnetcoverageSeamless HOSimplearchitectureSimplearchitectureLocal routingcapabilityCons.3-tier architectureHigh-speedbackhaul requiredHigh-speedbackhaul requiredNon-seamless HONon-seamlessHOTargetMarketCentralized-MobilePublic (Macro-cell)Centralized-MobilePublic(Micro/HotZone)Distributed-PortableEnterprise/HomeDistributed-PortableEnterprise/Home© SAMSUNG Electronics Co., Ltd.17/7
<strong>WiBro</strong> <strong>Network</strong> <strong>Architecture</strong>WIBroEnterpriseN/WAPRPSTN/PLMN<strong>WiBro</strong><strong>WiBro</strong>APRAPSAPSASNASNAAAMIP HAIP CNACRASNIMSGSN/PDSNBRInternetRNC/BSC<strong>WiBro</strong>Home N/W<strong>WiBro</strong>APAPAPAPCNodeB/BTS3G RANMacro-cell• AP : Access Point• APC : AP Controller• APS : AP System (AP + APC)• APR : AP Router (APS + FA)• ASN : Access Serving Node• ACR : APC + ASN<strong>WiBro</strong>Public/Hot-zoneAP<strong>WiBro</strong><strong>WiBro</strong> Public/Macro3G MS3G© SAMSUNG Electronics Co., Ltd.18/7
A Tend of Standardization© SAMSUNG Electronics Co., Ltd.19/7
Standard bodiesTTA PG302Service <strong>Network</strong> Working GroupRAS-ACR InterfaceACR-ACR InterfaceWork Items and specific work scope discussionIEEE802.16Task Group f/g<strong>Network</strong> ManagementBase Station-Base Station InterfaceBackbone communication protocol (BS-BS)IEEE802.16f/g-draft under reviewing© SAMSUNG Electronics Co., Ltd.20/7
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