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CDMA Technology TrainingProgram
Telkom TrainingCenter
Telkom TrainingCenter
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CONTENTSCONTENTS
Technical Overview of thecdma2000
Key Design CharacteristicsRadio & Network Components
Packet Data Service forcdma2000
CDMA2000 Link StructureForward Link
Reverse Link
MAC & LAC
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Technical Overviewof the
cdma2000
Technical Overviewof the
cdma2000
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PDC
GSM
cdmaOne
IS-95A
HSCSD GPRS
cdmaOne
IS-95B
57.6 Kbps 115 Kbps
1998 1999
EDGE
384 Kbps
2001
IMT-2000
ITU
UMTS/
WCDMA
Cdma2000
IS-95C 1X, 3X
DS FDD 2002
MC FDD 2002
Harmonized wideband CDMA standard
2000
64 Kbps
2G 2.5G 3G
19.2 kbps 64 - 144 kbps 0.144 - 2 Mbps
Cellular Technology EvolutionPath
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IS-95AVoice
Low speeddata
IS-95BVoice
Medium speeddata
cdma2000-1XVoice Capacity
Higher SpeedData Introduction of
PCN
Cdma2000 1xEVPhase 1
DataOptimizedDedicated-data
carrier (overlay)
Cdma2000 1xEVPhase 2
Voice & DataCapacity
Multi-service
1996 1997 1998 1999 2000 2001 2002
2003 2004
Circuit & PacketData 9.6 /
14.4 kbps
Performanceenhancement &
access robustnessPacket Data with
64 kbps
MAC supportVoice Capacitydoubles 2x
battery lifePacket Data
144 kbps 153 kbps
Up to 2 Mbps datarate non-real time
applications2 (1.25
MHz) carriersrequirement
Advanced MACVoice capacity
doubles realtime applications
All in one-carrier
cdmaOneTM Evolution to 3G(cdma2000TM )
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Cdma2000 adalah suatu platform teknologiwireless yang merupakan bagian darispesifikasi IMT-2000 dan merupakan perluasandari platform teknologi cdmaOne yangmenggunakan standar IS-95A/B danJ-STD-008.
Sistem cdma2000 dapat dioperasikan secaraekonomis dalam berbagai macam lingkungan,termasuk :
Outdoor megacells (cell > 35 km radius)
Outdoor macrocells (cell 1-35 km radius)
Indoor/outdoor microcells (up to 1 kmradius)
Indoor/outdoor picocells (< 50 m radius)
Technical Overview ofCDMA2000
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Sistem cdma2000 mendukung :
Berbagai macam lingkungan operasi
Berbagai macam laju transmisi
Berbagai macam layanan yang lebih
advancedKemampuan mengendalikan QoS Multimedia
Interoperability tanpa batas dan kemampuanhandoff dengan sistem TIA/EIA-95-B eksisting.
Evolusi yang mulus dari sistem berbasisTIA/EIA-95-B eksisting.
Penggelaran yang sangat optimal dan efisien.
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New Terminology in CDMA2000
Spreading Rate 1 (1X)
Spreading Rate 3 (3X)Multi-carrier (MC)
Transmit Diversity
Radio Configurations (RC)
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1.25 MHzIS-95 ForwardChannel
1.25 MHzCDMA2000-1X Forward
Channel
1.25MHz
1.25MHz
1.25MHz
5 MHz
CDMA2000-3X ForwardChannel
GuardBand
GuardBand
1.25 MHzIS-95 ReverseChannel
1.25 MHzCDMA2000-1X Reverse
Channel
5 MHz
CDMA2000-3X ReverseChannel
GuardBand
SpectrumRequirements
GuardBand
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Suatu fitur opsional dari cdma2000 untukmemperbaiki performansi sistem di dalamlingkungan radio tertentu, dengan mengirimkansinyal forward link pada multiple antena.
Dua tipe yang distandarkan
- Orthogonal Transmit Diversity (OTD)
- Space Time Spreading (STS)
Didefinisikan dalam Release A
- Opsional untuk BTS
- Opsional untuk Mobile
Transmit Diversity
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Radio Configuration
Format transmisi F-TCH dan R-TCH, yang dicirikandengan karakteristik-karakteristik sbb :
Rate Set
Spreading Rate
Channel Coding (Turbo atau Convolutional)
Channel Coding rate
Modulation (QPSK/BPSK)
CDMA2000 Radio Configurations :
RC1 - RC9 pada Forward Link
RC1 - RC6 pada Reverse Link
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Kapasitas dan performansi yang lebihmeningkat
Coherent pilot based reverse link
Continuous reverse link waveform
fast power control pada forward danreverse links Auxiliary Pilots
Laju data dari 1.2 kbps sampai lebih dari2 Mbps
Mendukung berbagai macam bandwidthkanal RF :
1.25 MHz
3.75 MHz
7.5 MHz
11.25 MHz
Karakteristik Disain
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Advanced Medium Access Control (MAC)
Menyediakan layanan data kecepatan tinggi
yang sangat efektif Layer fisik yang dioptimalkan untuk operasi
MAC
Dedicated Control Channel (DCCH)
Variable packet data control channel framing (5and 20 ms)
Akses layanan data paket yang cepat melaluikanal paging dan kanal akses yang lebih maju(Common Control Channel - CCCH)
Turbo Code untuk meningkatkan kapasitaspada laju transmisi yang lebih tinggi
Alternatif signalling interface radio yangfleksibel
Backward compatibility to TIA/EIA-95-B
Native cdma2000 Upper Layer Signalling
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Forward Link transmit diversity
Mendukung mode Frequency DivisionDuplex (FDD) and Time Division Duplex
(TDD)
Mendukung mekanisme handoff antarasistem cdma2000 dan sistem 2G
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Advantages of CDMA2000 :
Increased Voice CapacityHigher Data Throughput
Frequency Band Flexibility
Increased Battery Life
Synchronization
Power ControlSoft Hand-off
Transmission Diversity
Voice and Data Channels
Traffic Channels
Supplemental Channels
Turbo Coding
Connectivity to ANSI-41, GSM-MAP, and IPnetworks
Full backward compatibility
Improved service multiplexing and QoSmanagement
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Radio and NetworkComponentsRadio and NetworkComponents
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Public
Telephone
Network
IP Network
ME
BTS
BTS BSC
BSC
SMS - SC
HLR
MSC
PDSN
AAA
HA
ROUTER
ROUTER
FIREWALL
CDMA2000
ARCHITECTURE
Voice
Network
Data
Network
ME
i ii i
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BSC
MSC
WIN HLR
PSTN
PDSNRouter
Fire Wall
Switch
AAAHA
Internet
Private/PDN
IWF
PLMNGAN
NMS DNS
BSM
DataCommunicati
on Network
BaseStation
Subsystem
NetworkSwitchingSubsystem
CDMA2000-1X Network Configuration(SAMSUNG Specific)
T i i CT i i C
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Base Transceiver Station (BTS)Base Transceiver Station (BTS)
Functional Description
Bertanggung jawab mengalokasikan kanal (Walsh code) dandaya (power) untuk konsumsi pelanggan.
Mempunyai perangkat radio fisik yang digunakan untuk
mengirim dan menerima sinyal cdma2000.
Base Station Controller (BSC)Base Station Controller (BSC)
Bertanggung jawab untuk mengontrol semua BTS yang adadi bawah pengawasannya.
Merutingkan paket dari BTS ke PDSN atau dari PDSN ke BTS. Merutingkan trafik TDM ke circuit-switched platform (MSC).
T i i C tT i i C t
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GAN (General ATM switch Network)GAN (General ATM switch Network)
Jalur komunikasi dan jalur handoff antar BSC.
Jalur Operasi & Pemeliharaan sistem. R-P Interface.
BSM (Base Station Manager)BSM (Base Station Manager)
Menyediakan fungsi Operasi & Pemeliharaan untuk GAN,
BSC dan BTS.
Memonitor status GAN, BSC dan BTS serta mengirimkanperintah-perintah yang diperlukan.
PDSN (Packet Data Serving Node)PDSN (Packet Data Serving Node)
Menyediakan akses ke Internet, Intranet dan WAP Server
bagi Mobile Station yang menggunakan CDMA2000 RAN.
Bertindak sebagai suatu gerbang akses untuk layanan-layanan data paket Simple IP dan Mobile IP.
Bertindak sebagai AAA (Authentication, Authorization,Accounting) Client.
T i i C tT i i C t
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AAA (Authentication, Authorization, Accounting)AAA (Authentication, Authorization, Accounting)
Berkomunikasi dengan PDSN lewat IP dan melakukan fungsi-fungsi utama : Authentication, Authorization & Accounting.
Dapat bertindak sebagai suatu proxy client bagi server-server yang lain.
HA (Home Agent)HA (Home Agent)
Bertanggung jawab untuk menerima semua pesan registrasiMobile IP dari MS melalui PDSN.
Tracking lokasi pelanggan Mobile IP, ketika bergerak darizona paket satu ke zona paket yang lain.
NMS (Network Management System)NMS (Network Management System)
Sistem yang mengelola PDSN dan Home Agent.
Menggunakan software aplikasi Total Control Manager danMedia Gateway Manager.
T i i C tT i i C t
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Packet Data Servicesin a cdma2000Network
Packet Data Servicesin a cdma2000Network
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Arsitektur Jaringan Data Paket
Airlink R-PInterface
Mobile-IP
Mobile
User
Radio
AccessNetwork
Data Core
Network IP Network
TE2 MT 2 BTS
BSC MSC
IWF
GAN
PDSN(FA)
AAAServer NMS
PDGN(HA)
Internet
ISP
HomeNetwork
VPN
PDGN(HA)
AAAServer
PDGN(HA)
AAAServer
PDGN(HA)
AAAServer
TE2 : Note Book PC
Rm : RS-232E
MT2 : Mobile Phone orPDA
Um : IS-2000
Abis : E1
A : E1
L : E1
A10/11 : Fast Ethernet
A8/A9
A8/A9
A L
Rm
Um
A10/11
DNS/DHCP
WAPPortal
WAPProxy
Gateway
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Protocol Reference Model
MIP MIP MIP
UDP UDP UDP
IP IP IP
PPP PPP
LAC LAC AAL5 AAL5GRE
GRE
MIP
MIP
MIP
MIP
MAC MAC ATM ATMIP IP
Link
Layer
Link
Layer
LinkLayer
LinkLayer
IS-2000 IS-2000 PHY PHY PHY PHY PHY PHY
MS BSC GAN PDSN PDGN
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Interfaces
R P Interface
Physical/Link Layer : 100Mbps fast Ethernet
Network Layer : Internet Protocol
MIP : 3G IOS v4.0.0, RFC2002 GRE : 3G IOS v4.0.0, RFC1701, GAN PDSN in User
Data
ATP RPP : BSC GAN, 155Mbps ATM Switch
BSC MSC
PI : PDSN External Network
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Packet Data Definitions
Packet Data Call : Air traffic channel Setup State
Voice / Data Call Service Option (OriginationMSG)
Packet Data Session : MS PDSN PPP SetupState
Active / Dormant Call BSC (300sec) or MN(2~255sec)
Types : Simple IP, Mobile IP
Packet Data Called
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Security
Security
Authentication
Data Encryption
Authentication
Mobile Node Authentication
Simple IP User Authentication
Mobile IP User Authentication
Between NEs Authentication Encryption
Ingress Address Filtering
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Accounting
RadioNode
PDSN AAAServer
Accounting : IS-835, RFC2139(RADIUS)
R-P Interface
Airlink Recordsi.e. Session ID, Sequence
Number, MSID, ServingPCF, BS/MSC ID
Usage Data RecordsPDSN adds more infoand sends completeUDR
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Mobility Management
Packet Handoffs
Link Layer Mobility : per PDSN
Network Layer Mobility : per Home Agent
Mobile Stations Operation Packet Zone : PCF (GAN) Area
Reactivation / Deactivation
Handoff : Inter-BTS, Inter-BSC, Inter-PCF, Inter-
PDSN, Inter-PZ
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DCN System Network Diagram
BSC
BSC
PCF(BHPA)
DCN (Data Core Network)
PDSN(FA)
Switching Hub(100 Mbps)
PDGN(HA)
FastEthernet
Gateway
Router
Internet
AAA WAP
NMS
DNS
Cisco 7200VXR
Cisco 7200VXR
Cisco 2600 Series
Catalyst 2950
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PDSN Fungsi Kunci
Access gateway for CDMA intoIP
Simple IP and Mobile IP access
Client for AAA server
IPCPIP address assignment Simple IPPDSN
Mobile IPHA to PDSN/FA toMS
R-P interfaceA10/A11 GRE-
AAA
HA
IPnetwork
IPnetwork
End
host
PDSN / FABSC/PCFBTS
RAN
Mobile
station
RAN=Radio Access Network; PCF=Packet ControlFunction; IPCP=Internet Protocol Control Protocol
Representsnon-Ciscoequipment
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PDSN - Foreign AgentFunctions
PDSN / FA
HA
BSC,
PCF
BTSMobile
station
Mobility Visitor Table:
MN COA
1.1.1.3 10.31.1.1
1.1.1.7 10.31.1.1
Mobility Visitor Table:
MN COA
1.1.1.3 10.31.1.1
1.1.1.7 10.31.1.1
IPnetwork
1.1.1.3
End host
10.31.1.1
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PDGN (HA) Function
System Configuration
HA adalah perangkat yang mempunyai fungsi HA dari Mobile IP.
Spesifikasi hardware sama seperti PDSN. Fungsi HA diperoleh denganmenginstal HA software
Performance & Capability
Throughput : 50 Mbps
Capability : Support maximum 10000 tunnels
Main Function
Mobile IP function (HA function)
Packet Interception & Tunneling functionRADIUS Client function
IP address allocation
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AAA RADIUS Server Function & Features
RADIUS is a standard for performing AAAservices, referenced in following RFCs: RFC 2139: RADIUS Accounting
RFC 2865: RADIUS protocol (obsoletes RFC 2138)
RADIUS provides the following features: A single database to manage users needing dial-inconnections
A client/server platform
Network security through authentication
Flexible authentication support
RADIUS=Remote Authentication Dial-In User Service
AAA=Authorization, Authentication, and Accounting
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PDSN AAA Support
AAA has threekey functions:
Authentication
Authorization
AccountingMobile
node
Home
agentForeign
agent
COA
Home
AAA server
RADIUS
Internet
Local
AAA server
RADIUS
COA=Care-of-Address
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gg
NMS Server OAM&P View
Traps
APIs
Statistics
Network Operations Centre (NOC)
Service Providers OSS
DB
CW4MWCV PDSNPackage
CiscoWorks
2000
DB
MWFM
SNMP/Syslog
APIs Traps
RANVendor
OMC
MS BSC,
PCFBTS
Radio Access Network(RAN)
IPNetwork
IPNetwork
Cisco PDSN/
Foreign Agent
Cisco Home
Agent
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gg
Packet Data Transport Process
Flow
Packet Data Transport Process
Flow Layanan data cdma2000 dibagi dalam dua kategori :- Circuit-Switched
- Packet Switched
Data circuit-switched ditangani secara efektif seperti halnya
voice, sedangkan untuk data paket menggunakan PDSNsebagai interface antara air interface data transport danfixed network transport.
Interface PDSN ke Base Station dilakukan melalui suatuPacket Control Function (PCF), yang bisa kolokasi dengan
BS. CDMA2000 mempunyai tiga kondisi layanan data paket :
- Active/connected
- Dormant
- Null/inactive
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Active/
connected
Dormant
Null/inactive
Active/connected
Dalam kondisi ini ada kanal trafik fisik antara unit pelanggan danBS, dimana data paket dikirim dan diterima dengan carabidirectional.
Dormant
Dalam kondisi ini tidak ada kanal trafik fisik, tetapi link PPP(Point-to-Point Protocol) antara unit pelanggan dan PDSNdipelihara.
Null/inactive
Dalam kondisi ini tidak ada kanal trafik maupun link PPP.
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Establish PPP session to PDSN
Obtain dynamic IP addressfrom PDSN or AAA
Contact all end hosts via PDSN
Keep connection by stayingwithin the range of the localPDSN
RAN
PL
R-P
Airlink
LACMAC
IP
MAC
Airlink
LAC
MS PDSN
PL
LinkLayer
R-P
PL
IP
PPPPPP PPPPPP
IP/IPsec
GREGRE
R-P InterfaceA10/A11 GRE-
AAA
IPnetwork
IPnetwork
End
Host
Pi Interface
PDSNBSC/PCFBTS
RAN
Mobile
Station
Representsnon-Ciscoequipment
Simple IP Function
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Access VPN Operation Overview
SP Network/Internet
POPCorporate
Intranet
Mobile Usersand
Telecommuters
1. VPN identification 2. tunnel to LNS(home gateway)
SecurityServer
3. user authentication4. PPP negotiationwith user
5. end-to-end tunnel
established
LNS
LACPDSN
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Laptop/
mobile node
FA1
FA2
HA
ForeignNetwork 1
ForeignNetwork 2
HomeNetwork
Internet
Laptop/
mobile node
Moved
COA
The Home Agent, Foreign Agent andCOA are analogous to the postal serviceforwarding mail to a new address
Foreign Agent 1
Foreign Agent 2
Home Agent
Mobile IP Reference Model
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CDMA2000 LinkStructure
CDMA2000 LinkStructure
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CDMA2000 PHYSICAL LAYER
Spreading Rate 1 (1X) and Spreading Rate
3 (3X) Logical Channels
Radio Configurations
Many new Physical Channels
Transmit Diversity Pilot Channels
Enhanced Access Channel procedures
Reverse Link Pilot Channel
New Concepts in the cdma2000 Physical Layer
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f-csch
F-
SYNCH
F-PCH
F-BCCH
LogicalChannel
PhysicalChannel
LOGICAL & PHYSICAL
CHANNELS
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Signalling Channels :Dedicated Signalling Channel (dsch)
Common Signalling Channel (csch)
Traffic Channels :
Dedicated Traffic Channel (dtch) - CarriesStreaming Data PDUs, e.g., :
- Packet Data
- Circuit Data
- Voice Traffic
Common Traffic Channel (ctch) - Carries ShortData Burst (SDB) PDUs (e.g., Packet Data DormantMode SDBs)
Control Channels - Carry Control Information betweenEntities (f/r-dmch_control, r-cmch_control, f-cmch_control)
SUMMARY OF LOGICALCHANNELS
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The cdma2000Forward LinkThe cdma2000Forward Link
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Forward CDMA Channelfor Spreading Rate 1
& 3
CommonAssignm
entChannels
CommonPower
ControlChannels
Pilot
Channels
CommonControl
Channels
Sync
Channels
Traffic
Channels
Broadcas
tChannels
PagingChannels
(SR1)
QuickPaging
Channel
ForwardPilot
Channel
TransmitDiversity
PilotChannel
AuxiliaryPilot
Channels
AuxiliaryTransmitDiversity
Pilot
Channel
0-2SupplementalChannels
(RC 3-9)
0-7Supplemental
Code Channels(RC 1-2)
Mobile StationPower ControlSub-channel
0-1Fundamental Channel
0-1Dedicated
ControlChannel
W0
64
W32
64
W1-7
64
Wn
64
W80/48/112
128
W16
128
Backward Compatible Forward LinkChannels
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New Forward Link Common Channels
Forward CDMA Channelfor Spreading Rate 1
& 3
CommonAssignm
entChannels
CommonPowerControl
Channels
PilotChannels
CommonControl
Channels
SyncChannels
TrafficChannels
Broadcast
Channels
PagingChannels
(SR1)
QuickPaging
Channel
ForwardPilot
Channel
TransmitDiversity
PilotChannel
AuxiliaryPilot
Channels
AuxiliaryTransmitDiversity
PilotChannel
0-2SupplementalChannels
(RC 3-9)
0-7Supplemental
Code Channels(RC 1-2)
Mobile StationPower ControlSub-channel
0-1Fundamental Channel
0-1Dedicated
ControlChannel
W064
W32
64
W1-7
64
Wn
64
W80/48/112
128
W16 128
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Why New Common Channels ?
Common Channels yang baru dalam cdma2000mempunyai beberapa keuntungan. Dalamsistem IS-95, MS tidak mampu mengakses
sistem sampai diterimanya pesan-pesanoverhead. Hal ini memerlukan Paging Channeluntuk mengirimkan pesan-pesan tersebuthampir tanpa henti, yang akan menguras
kapasitas Paging Channel. Denganmeningkatkan kapasitas kanal-kanal overheadcdma2000, delay dapat diminimalkan dansistem mempunyai kapasitas yang jauh lebihbesar untuk paging dan messaging.
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Pilot Channel
Suatu sinyal DSSS tak bermodulasi yang dipancarkan secarakontinyu oleh setiap Base Station.
broadcast/cell atau sector, digunakan untuk estimasi kanal,akuisisi awal dan handoff.
Common Auxiliary Pilot Channel
aplikasi-aplikasi beam forminguntuk sekelompok mobile
Dedicated Auxiliary Pilot Channel aplikasi-aplikasi beam steering dan beam forming
untuk suatu mobile tunggal
F-DAPICH
F-CAPICH
F-PICH
New Forward Link CommonChannel
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Broadcast Control Channel (F-BCCH) Hanya memancarkan pesan-pesan Overhead (Extended
System parameters Message, General neighbor ListMessage, CDMA Channel List Message, etc.).
Juga memancarkan SMS (Short Message Service).
Laju data : 4.8 , 9.6 , or 19.2 kbps.
OVERHEAD
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Common Control Channel (F-CCCH) Pesan-pesan yang ditujukan ke Mobile Station (e.g. Extended
Channel Assignment Message, General Page Message, OrderMessage)
Laju data : 9.6 , 19.2 , or 38.4 kbps
Discontinuous Transmit (DTX) mode
Mobile-directed
msgs
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Quick Paging Channel (F-QPCH) Digunakan oleh BS ketika perlu mengontak MS dalam mode
slotted. Tujuan mengurangi waktu yang dihabiskan oleh MS untuk
memonitor Paging Channel, sehingga waktu standby lebihlama.
Dapat digunakan bersama dengan F-CCCH atau F-PCH.
Walsh code W80, W48 dan W112 disediakan untuk F-QPCH.
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Common Assignment Channel (F-CACH) Didisain khusus untuk menyediakan respon penetapan kanal
Reverse Link yang cepat, sehingga mendukung pengirimanpaket-paket akses random pada Reverse Link.
1 2 3
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Forward CDMA Channelfor Spreading Rate 1
& 3
CommonAssignm
entChannels
CommonPowerControl
Channels
PilotChannels
CommonControl
Channels
SyncChannels
TrafficChannels
Broadcast
Channels
PagingChannels
(SR1)
QuickPaging
Channel
ForwardPilot
Channel
TransmitDiversity
PilotChannel
AuxiliaryPilot
Channels
AuxiliaryTransmitDiversity
PilotChannel
0-2SupplementalChannels
(RC 3-9)
0-7Supplemental
Code Channels(RC 1-2)
Mobile StationPower ControlSub-channel
0-1Fundamental Channel
0-1Dedicated
ControlChannel
W064
W32
64
W1-7
64
Wn
64
W80/48/112
128
W16 128
New Forward Link Dedicated Channels
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Forward Fundamental channel
Digunakan untuk pengiriman informasi user dan
signalling ke MS tertentu selama panggilan (voice, data,control).
Setiap Forward Traffic Channel dapat memuat satuForward FCH.
Forward Supplemental channel
Digunakan untuk pengiriman informasi user dansignalling ke MS tertentu selama panggilan. Kanal iniumumnya digunakan untuk aplikasi data kecepatantinggi.
Setiap Forward Traffic Channel dapat memuat sampaidua SCH.
Forward Dedicated Control Channel
Digunakan untuk pengiriman informasi user dansignalling ke MS tertentu selama panggilan. SetiapForward Traffic Channel dapat memuat satu F-DCCH.
Power Control Subchannel
Umumnya diasosiasikan dengan FCH, tetapi jika F-FCH
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Forward Link Physical Layer KeyCharacteristics
Full rate
data bits
User longcode mask
Long code
generator
Add CRC and
Tail Bits
1/4 Rate conv.
encoder
Interleaver
Long code
decimator
Gain
Gain
PCbits
PC
PC
dec
S-PWalsh 64generator
I short code
Q short code
FIR
FIR
+
-
+
+
8.6 kbps 9.6 ksps
38.4 ksps
38.4 ksps
1.2288 Mcps38.4 ksps
Decimator byWalsh length/2
Power
control
puncture
800 bps
800 bpsPuncture
timing
Optional
Can be carried by F-DCCH
I
Q
19.2 ksps
19.2 ksps
1.2288 Mcps
1.2288 Mcps
I
Q
1.2288 Mcps
1.2288 Mcps
Orthogonal
spreading
Complex
scrambling
1.2288 Mcps
1.2288 Mcps
I
Q
I
Q
1.2288 Mcps
1.2288 Mcps
Note : 1X RC3 F-FCH 9.6K for a 8K voice call
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The cdma2000 ReverseLink
The cdma2000 ReverseLink
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New Reverse Link features for cdma2000
Reverse Link Pilot
Multi Kanal yang dipancarkan secara
simultan dari setiap mobile station Kanalisasi dengan kode Walsh
Turbo code pada Supplemental Channel
Power Control Subchannel untuk ForwardPower Control
Panjang frame yang bervariasi
5 ms, 10 ms, 20 ms, 40 ms dan 80 ms
CDMA2000 Reverse Link Characteristics
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R-ACH Reverse Access Channel
R-PICH Reverse Pilot Channel (W032)
R-EACH Reverse Enhanced Access Channel(W28)
R-CCCH Reverse Common Control Channel(W28)
R-DCCH Reverse Dedicated Control Channel(W816)
R-FCH Revesre Fundamental Channel(W416)
R-SCH Reverse Supplemental Channel
R-SCCH Reverse Supplemental Code Ch.
CDMA2000 Reverse LinkChannels
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Reverse CDMA Channelfor SR1 and SR3
Access
Chann
el(SR1)
ReverseTraffic
Channel(RC 1 or
2)
EnhancedAccess
ChannelOperation
ReverseCommon
Control Ch.Operation
ReverseTrafficChannel
Operation
(RC 3 to6)
ReverseFundamental
Ch.
Reverse PilotChannel
Reverse PilotChannel
Reverse PilotChannel
0 to 7Reverse
SupplementalCode Channel
EnhancedAccess
Channel
ReverseCommonControlChannel
0 or 1 ReverseDedicated
ControlChannel0 or 1 Reverse
FundamentalChannel
0 or 1 ReverseSupplemental
Channel
Power ControlSub-channel
Masing-masing kanal di-ortogonalisasidengan fungsi Walsh
Gain relatif pada setiap kanal dapatdiatur untuk mengadaptasi lingkungan
radio dan tipe layanan.
W2
8 W2
8
W0
32
Backward Compatible Reverse LinkChannels
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Reverse CDMA Channelfor SR1 and SR3
Access
Chann
el(SR1)
ReverseTraffic
Channel(RC 1 or
2)
EnhancedAccess
ChannelOperation
ReverseCommon
Control Ch.Operation
ReverseTrafficChannel
Operation
(RC 3 to6)
ReverseFundamental
Ch.
Reverse PilotChannel
Reverse PilotChannel
Reverse PilotChannel
0 to 7Reverse
SupplementalCode Channel
EnhancedAccess
Channel
ReverseCommonControlChannel
0 or 1 ReverseDedicated
ControlChannel0 or 1 Reverse
FundamentalChannel
0 or 1 ReverseSupplemental
Channel
Power ControlSub-channel
W2
8 W2
8
W0
32
Common Channels
Dedicated
Channels
Reverse Common & Dedicated Channels
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Reverse Pilot Channel (R-PICH)
Dipancarkan oleh setiap MS. Setiap kanal pilot diterima di BTSdan digunakan untuk mendemodulasi secara koheren, kanal-kanal kode lain yang dipancarkan oleh MS tersebut.
Kemampuan mendemodulasi reverse link secara koheren,menurunkan Eb/Nt yang diperlukan sebesar 3 dB, sehingga dapatdigunakan untuk meningkatkan kapasitas reverse link.
Dipancarkan oleh MS :
- Jika EACH, CCCH atau R-TCH (RC3 RC6) diaktifkan.
- Selama EACH preamble, CCCH preamble atau TCHpreamble.
Pilot(all 0s)
1 PC Bit per
PCG
SymbolRepetition
384NCopies
MUX
APilotChannel &PC Symbols
Pilot PC
384N Chips
1 Power ControlGroup 4 Groups
of 384N Chips
Where N equalsSpreading Rate
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Struktur Kanal R-FCH dan R-SCH(RC3)
Add Frame
Quality
Indicator
Add 8
Encoder
Tail Bits
Convolutiona
l or Turbo
encoder
Symbol
RepetitionSymbol
Puncture
Block
Interleaver CChannel Bits
Bits/Frame Bits Data Rate (kbps) R Factor Deletion
Symbols Rate (ksps)24 Bits/5 ms
16 Bits/20 ms
40 Bits/20n ms
80 Bits/20n ms
172 Bits/20n ms
360 Bits/20n ms
744 Bits/20n ms
1512 Bits/20n ms
3048 Bits/20n ms
6120 Bits/20n ms
16
6
6
8
12
16
16
16
16
16
9.6
1.5
2.7/n
4.8/n
9.6/n
19.2/n
38.4/n
76.8/n
153.6/n
307.2/n
1/4
1/4
1/4
1/4
1/4
1/4
1/4
1/4
1/4
1/2
2x
16x
8x
4x
2x
1x
1x
1x
1x
1x
None
1 of 5
1 of 9
None
None
None
None
None
None
None
384
1536
1536
1536
1536
1536
3072
6144
12288
12288
76.8
76.8
76.8/n
76.8/n
76.8/n
76.8/n
153.6/n
307.2/n
614.4/n
614.4/n
Modulati
onSymbol
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Walsh Cover
W24 or W6
8
Walsh Cover
W816
Walsh Cover
W416
Walsh Cover
W12
, W24
, or W28
C
A
B
C
C
Relative
Gain
Relative
Gain
RelativeGain
Relative
Gain
S
S
++
+
+
+
R-SCH 2
R-PICH
R-DCCH
R-FCH
R-SCH 1,R-CCCH or
EACH
Decimator by
factor of2
1-ChipDelay
Long CodeGen 1.2288
Mcps
I-ChannelPN
Sequence
Q-ChannelPNSequence
Walsh
Cover W12
S
S
+
+
+
+
cos(2 fct)
sin(2 fct)
S
BBFIL
BBFIL
s(t)
+
+
Gain
ComplexMultiplier
Orthogonal
Spreading
I-ChannelData
Q-ChannelData
LongCode
Mask
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Illustration of Reverse LinkOperation
Pilot Channel
1/4 Rate
Full Rate
Full Rate
Full Rate
1/2 Rate
1/2 Rate
Fundamental
Channel
(R-FCH)
Supplemental
Channel
(R-SCH)
Reverse link pilot selalu aktif, dan kanal-kanal kode yangberlainan dapat ditransmisikan sepanjang MS mempunyaidaya yang cukup. Daya kanal merupakan fungsi dari lajudata, FEC dan panjang frame.
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MAC & LACMAC & LAC
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7. ApplicationLayer
7. ApplicationLayer
6. PresentationLayer
6. PresentationLayer
5. Session Layer5. Session Layer
4. TransportLayer
4. TransportLayer
3. Network Layer3. Network Layer
2. Data LinkLayer
2. Data LinkLayer
1. Physical Layer1. Physical Layer
Berkomunikasi dengan user dan memuat aplikasi-aplikasi
jaringan seperti : e-mail dan file transfer protocol (ftp).
Merubah format-format data, enkripsi dan dekripsi data.
Memuat protokol-protokol yang diperlukan untukmembangun hubungan atau sesi, antara dua end-user,
dan error recovery.
Memastikan informasi sampai ke tujuan dan mengirimkanACK ke pengirim. Memuat fungsi-fungsi : multiplexing,buffering dan connection management.
Menentukan best route antara dua node, mengelolainformasi billing.
Memastikan operasi yang benar dari layer fisik.Bertanggung jawab untuk deteksi/koreksi error.
Transmission media dan connection strategy.
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TIA IS-95 and cdma2000 Layered Structure withProtocols
TIA IS-95 and cdma2000 Layered Structure withProtocols
Signalling
Services
Packet Data
ApplicationVoice Services
Circuit Data
Application
TCP UDP
IP
PPP
High-Speed
Circuit Network
Layer Services
LAC
MAC
LAC Protokol Null LAC
MAC Control
StateBest Effort Delivery RLP
MultiplexingQoS Control
Physical Layer
Upper
Layers
(OSI 3 - 7)
Link
Layer
(OSI 2)
Physical
Layer
(OSI 1)
PPP = Point-to-Point Protocol TCP = Transmission Control Protocol
UDP = User Datagram Protocol= khas cdma2000
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Data Link Sublayer Overview : LAC and MAC
Sublayer LAC menyediakan transport data melalui air interfacediantara peer upper layer entities. Sublayer LAC mendukungkemampuan dan keandalan transmisi untuk memenuhiberbagai kebutuhan upper layer entities. Untuk menyediakanlayanan ini, LAC menggunakan sejumlah protokol yang
berbeda untuk memenuhi kebutuhan QoS dari setiap upperlayer entities terhadap karakteristik sublayer MAC.
Sublayer MAC menyediakan suatu fungsi kendali yangmengelola resource yang disediakan oleh layer fisik, danmengkoordinasikan penggunaan resource-resource tersebut
sesuai dengan kebutuhan berbagai LAC service entities.Sublayer MAC bertanggung jawab untuk memberikan levelQoS yang diminta oleh LAC service entity (misal : denganmereservasi air interface resources atau dengan menetapkanprioritas-prioritas diantara LAC service entities yang bersaing).
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CDMA2000 MAC Sublayer
Sublayer MAC CDMA2000 menyediakan dua fungsi penting :
Best Effort Delivery - transmisi handal melalui link radio dengan suatuRLP (Radio Link Protocol) yang memberikan suatu tingkat keandalan besteffort.
Multiplexing & QoS Control - pelaksanaan negotiated QoS level
melalui mediasi permintaan-permintaan yang bertentangan (conflictingrequests) dari layanan-layanan yang bersaing, serta menetapkan prioritasyang sesuai dari suatu permintaan akses.
Fungsi-fungsi lain yang terkait dengan sublayer MAC :
MAC Control States - prosedur-prosedur untuk mengontrol akseslayanan-layanan data (packet dan circuit) ke layer fisik, termasukcontention control
diantara multi layanan, dari suatu user tunggal ataupunsekelompok user yang bersaing (competing users).
Resource Configuration Database (RCD)- representasi abstrak daristruktur data yang dipelihara oleh mobile station dan base station dalammendukung layer MAC. RCD diatur dalam seperangkat tabel yangmemuat informasi konfigurasi untuk berbagai entities.
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CDMA2000 MAC State Transitions
ActiveState
DormantState
Big Timeout
Traffic
TIA/EIA-95-BMAC
ActiveState
DormantState
ControlHoldMode
CDMA2000MAC
Inactivity
Inactivity
Inactivity
Traffic
Traffic
Traffic, PC&ControlChannels
Assigned
PC & ControlChannelsAssigned
Very fast
Traffic ChReassi nmen
No dedicatedchannels
No BS, MSCResources
PPP Statemaintained
Short Data
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MAC States
IS-2000MACState
Physical Layer MAC
Layer
Data Service
Instance
Signalling
FCHassigned
by BS
DCCHassigned
by BS
ReversePilot isGated ?
PCH/F-CCCH
DataTraffic
Flowing ?
State SDBsPermitted
?
Call ControlInstance
State
Notes
Active Y Y N N Y
Connected
N Conversation Substate
Active Mode :PILOT_GATING_
USE_RATE is setto 0
ControlHold
N Y Y N N
Control Hold Mode: PILOT_GATING_
USE_RATE is setto 1
Dormant Y N Dormant Y Null SCR Not Saved inthe MS
Tabel diatas memperlihatkan atribut-atribut signifikan dari physicallayer, MAC layer dan signalling selama MAC state.
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State Transitions
ActiveMode ControlHoldMode
Extended Release Message orExtended Release Mini Message,
Universal Handoff Direction Message, or
General HandoffDirection Message
Resource Allocation Message,Resource Allocation Mini Message,
Extended Supplemental Channel Assignment Message,orUniversal Handoff Direction Message,
General Handoff Direction Message
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Multiplex (MUX) Sublayer
Signalling Data Service
(sr_id=1)
datablock
datablock
data block
data blockdsch dtch, sr_id=1
dtch, sr_id=1
datablock
datablock
data block data block CRC
CRC
Header(formatbits)
MUX PDUHeader
MUX PDUHeader
MultiplexSublayer
MuxPDU Type 1 or 2
FCH or DCCH SDU
MuxPDU Type 3 or 5 MuxPDU Type 3 or 5
LTU LTU
SCHSDU
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MUX PDU (Protocol Data Unit) Types 1-4
N bits Specified by the Multiplex Option for a FCH orDCCH or SCCH or Rate 1x SCHMuxPDU Type 1and 2
6 bits Specified by the Multiplex Option for a Rate 2x or
larger SCH
0 bitsSpecified by the Multiplex Option for a 5 ms
MuxPDU for the FCH or DCCH
sr_id
3 bits
Reserved
3bits
sr_id value specified for the service instance
MuxPDU Type 3
MuxPDU Type 4
000
MuxPDUheader
MuxPDU header (identical to the TIA/EIA-95-B format bits)
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MUX PDU Type 5
6, 14 or22 bits Specified by the Multiplex Option for a
SCHMuxPDU Type 5
sr_id3 bits
Reserved 1 bit
lengthindicator
lengthMuxPDUheader
00 no lengthfield 01
8 bit length field10 16 bit
length field11 reserved
If included,indicates
length ofMuxPDUpayload inoctets
0
00 Reserved001 110 sr_id value
specified for the service instance 111null service (used when including a Fill
MuxPDU)
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Reverse LAC Sublayers
Control
Plane
Data Plane
Layer 3
LACSublayer
LowerLayers
SAP
SAP
r-csch
Transmission/Reception
SAR Sublayer
Utility Sublayer
Addressing Sublayer
ARQ Sublayer
Authentication Sublayer
Authentication SublayerPresent only on the
Access ChannelAccess control through global challengeauthentication
on transmission : appends
AUTH_PARAM fields
ARQ Sublayer
Appends ARQ_PARAM (sequencenumber)
Performsacknowledgement functions
Generates MS and BS ACKs
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Forward LAC Sublayers
Control
Plane
Data Plane
Layer 3
LACSublayer
LowerLayers
SAP
SAP
f-csch
Transmission/Reception
SAR Sublayer
Utility Sublayer
Addressing Sublayer
ARQ Sublayer
Addressing SublayerPresent only on theCommon ChannelAppends ADDR_PARAM (address fields) ontransmission Performs address matchingon reception
Segmentation & Reassembly(SAR) Sublayer
On transmission : AddsMSG_LENGTH and CRC fields andsegments L2 PDU into lowerlayer data unit.
On reception : Reassembles L2
Utility SublayerAssembles and
disassembles L2 PDUsMaps SDU_TYPE to/from MSG_TYPE
On Access Ch, appendsRRC PARAM ( ilot stren th
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Bearer Service Profiles
BS MSSignalling, Voice,
PC
Voice
Option1
BS MS
Voice, PCVoiceOption
2 Signalling
BS MS
Signalling,Voice,Data,PC,MACVoice/
PacketOption
1Data
Bursts
BS MS
Signalling,Voice,PCVoice/
PacketOption
1
MAC,Data,(Signalling),PC
DataBursts
BS MS
Signalling,Data,PC,MACPacket
Option1 Data
Bursts
BS MSPacketOption
2Signalling,Data,PC,
MACData
Bursts
BS MS
Signalling,Data,PC
PacketOption
3MAC,(PC)
DataBursts
Fundamental Channel
Dedicated ControlChannel
Supplemental Channel
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THANK YOU
comments pleasewelcome
THANK YOU
comments pleasewelcome
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Forward Pilot Channel 1
Transmit Diversity Pilot Channel 1
Sync Channel 1
Paging Channel 7
Broadcast Control Channel 8
Quick Paging Channel 3
Common Power Control Channel 4
Common Assignment Channel 7
Forward Common Control Channel 7
Forward Dedicated Control Channel1 per Fwd Traffic
ChannelForward Fundamental Channel 1 per Fwd
Traffic Channel
Forward Supplemental Code Channel 7 per FwdTraffic Channel(RC1 and RC2 only)
Forward Supplemental Channel 2 per FwdTraffic Channel
Channel Type (SR1) Maximum Number
Cdma2000 Forward ChannelType
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Forward Pilot Channel 1
Sync Channel 1
Broadcast Control Channel 8
Quick Paging Channel 3
Common Power Control Channel 4
Common Assignment Channel 7
Forward Common Control Channel 7
Forward Dedicated Control Channel1 per Fwd TrafficChannel
Forward Fundamental Channel 1 per FwdTraffic Channel
Forward Supplemental Channel 2 per FwdTraffic Channel(RC3, RC4 and RC5 only)
Channel Type (SR3) Maximum Number
Cdma2000 Forward ChannelType
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Cdma2000 Forward Link RC &SR
Forward Link
RC SR Data RatesCharacteristics
1 1 1K2,2K4,4K8,9K6 R=1/2
2 1 1K8,2K6,7K2,14K4R=1/2
3 1 1K5,2K7,4K8,9K6,38K4,76K8,153K6 R=1/4
4 1 1K5,2K7,4K8,9K6,38K4,76K8,153K6,307K2 R=1/2
5 1 1K8,3K6,7K2,14K4,28K3,57K6,115K2,230K4 R=1/4
6 3 1K5,2K7,4K8,9K6,38K4,76K8,153K6,307K2 R=1/6
7 3 1K5,2K7,4K8,9K6,38K4,76K8,153K6,307K2,614K4R=1/3
8 3 1K8,3K6,7K2,14K4,28K8,57K6,115K2,230K4,R=1/4(20ms)
460K8 R=1/3(5ms)
9 3 1K8,3K6,7K2,14K4,23K8,57K6,115K2,230K4,R=1/2(20ms)
460K8,1036K8 R=1/3(5ms)
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RC SR Max DataRate (Kbps)*
EffectiveFEC Code
Rate
OTDAllowe
d
FECEncoding
Mod
1 1 9.6 1/2 NoConv BPSK
2 1 14.4 3/2 NoConv BPSK
3 1 153.6 1/4 Yes Conv &
Turbo QPSK4 1 307.2 1/2 Yes Conv & Turbo QPSK
5 1 230.4 3/8 Yes Conv & Turbo QPSK
6 3 307.2 1/6 Yes Conv & Turbo QPSK
7 3 614.4 1/3 Yes Conv & Turbo QPSK
8 3 460.8 1/4 or 1/3 Yes Conv &
Turbo QPSK9 3 1036.8 1/2 or 1/3 Yes Conv & Turbo QPSK
* Maximum data rate for a single SupplementalChannel
Forward Link RadioConfigurations
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RC SR Max DataRate(Kbps) *
EffectiveFEC Code
Rate
FECEncoding Modulation
1 1 9.6 1/3 Conv64-ary ortho2 1 14.4 1/2 Conv64-ary ortho3 1 153.6 1/4 Conv or
Turbo QPSK
4 1 230.4 3/8 Conv orTurbo QPSK
(614.4) (1/3)
6 3 460.8 1/4 Conv orTurbo QPSK (1036.8) (1/2)
* Maximum data rate for a singleSupplemental Channel
Reverse Link RadioConfigurations
(307.2) (1/2)
5 3 153.6 1/4 Conv orTurbo QPSK