Download - Evolution of Broadband Wireless
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Evolution of Broadband
WirelessFrom Wireless LAN to Access, from Proprietary to StandardFrom Wireless LAN to Access, from Proprietary to StandardSolutionsSolutions
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Fixed OutdoorFixed Outdoor
Solution CharacteristicsSolution Characteristics
Fixed location
Installed outside ofsubscribers house
Requires truck roll
ApplicationsApplications
E1/T1 Level Service forEnterprises
Backhaul for Hotspots Fractional E1/T1 for SMB
Limited residentialbroadband access (earlyadopters, rural,developing countries)
MobileMobile
Solution CharacteristicsSolution Characteristics
CPE Native in Mobile PC
User can roam within theservice area at varyingspeeds\
Always Best Connected(Simplified NetworkSelection)
ApplicationsApplications
Mobile Broadbandaccess for consumers
Fixed Indoor & PortableFixed Indoor & Portable
Solution CharacteristicsSolution Characteristics
Consumer self install,
auto provisioning Portable can move
CPE to another locationin service area
ApplicationsApplications
Last Mile Broadbandaccess for consumers
Portable broadbandaccess
The WiMAX Vision
20042004 20052005 20062006
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WiMAX Vision: Broadband
Everywhere
BWA Operator
Network Backbone
INTERNET
BACKBONE
Mobile
Backhaul
3
RESIDENTIAL & SoHo
DSL LEVEL SERVICE
1
802.16d
FRACTIONAL E1
for SMALL
BUSINESS
E1+ LEVEL SERVICE
ENTERPRISE
BACKHAUL for
HOTSPOTS
2
802.16d
H
H
HH
H
H
H
H
H
WMAN Nomadic Coverage
--> handoff from HOT
SPOTS
4
= wide area
coverage outside of
Hot Spots
Mobility
5802.16e
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WiMAX Deployment Scenario An Example
MAC Addr. A
Outdoor Unit
To LAN
Indoor to outdoor CAT5 cable
Antenna
Attached
Indoor Unit
Hub
MAC Addr. R
MAC Addr. Q
MAC Addr. PMAC Addr. CMAC Addr. B
10 / 100 Base T output
Each Subscriber Unit can support upto 1,024 MAC addresses.
Indoor UTP CAT5 cable
Access Unit (Base Station) locationOutdoor Unit
Indoor to outdoor CAT5 cable
AntennaAttached
Indoor Unit
10 / 100 Base T outputWith integrated 802.11
Wi-Fi Access Point
Subscriber Unit connected to LAN Hub of a Large Enterprise
Subscriber Unit with integrated Wi-Fi IEEE 802.11 Access Point in a Hotel, Caf, Airport etc.
512k
m.NonL
ineofS
ight(No
n-LOS)R
ange
Subscriber Unit connected to a hub in a Multi-storey / Multi-tenant Apartment Building
2030
km.Lin
eofSight(L
OS)Ran
ge
100BaseT
Router
Internet
Backbone
Outdoor Unit
Indoor to outdoor
CAT5 cable
Indoor Unit
Hub
MAC Addr. G
10/100 BaseT
output
AntennaAttached
Indoor UTP CAT5 cable
MAC Addr. F
MAC Addr. H
MAC Addr. E
MAC Addr. AMAC Addr. B
MAC Addr. D MAC Addr. C
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1 Trans mis s ion N etw orking1 Trans mis s ion N etw orking
BSC
N E1
SDH transmission network
BTSBTS
GSM base station
SU
E1
GSM base station
SU
E1
GSM base station
SU
E1
GSM base station
SU
E1
N E1
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6
System Architecture
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CPE Outdoor Unit
Indoor Self-Install
PC Card (ODMs)
Laptop integrated (Intel)
System Components
Base Station Controller
Macro Base station
Micro Base station
RF Units
Network Management
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High PerformanceBase Station Performance:
18 Mbps net capacity with 3.5 MHz channels
IEEE 802.16 highly efficient MAC
BST radios operate in full duplex mode
BST radios support up to 14 MHz channelbandwidth enables up to 72 Mbps net capacityper single sector
CPE Performance:
10Mbps net throughput per unit Multiple connections and SLAs per unit
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High Capacity Scalable
BST Multi Channel BST radios
Increase capacity over the same RF infrastructure
Scalable pay as you grow solution
Scalable
Growth
Modem# 1
Modem
# 2
Modem
# 3
Modem
# 4
IF
Mux
4x3.5MHz Channel = 72 Mbps Net
Capacity
Radio Unit
RFModem
# 1
1x3.5MHz Channel = 18 Mbps
Net Capacity
Radio Unit
RF
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Scalable BST DesignBenefits Pay as you grow cost
effective BST design
Applies for Macro and
Micro BST
Fits rural market that
requires high coverage
with moderate capacity
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Base Station Description
Multiple Backbone types: 100BaseT/1Gigabit Ethernet interface
V5.2/ Multi-E1 interfaces to Local Exchange
Multiple RF unit configurations
Multi sectors
Multi channels Multiple antenna per sector (smart antenna)
*
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Base Station Controller
NPU Network Processing Unit card (1+1) AU Access Unit card (4+2)
NIU Network Interface Unit - 12 x E1/T1 interface card (port
redundancy)
PIU Power Interface Unit card with redundancy AVU Air Ventilation Unit controllable fans (9+1)
PSU Power Supply Unit (3+1)
PSU
Access Unit (AU) orNetwork InterfaceUnit (NIU)
NetworkProcessingUnit (NPU)
AVU
PIU
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RF Units Smart antenna 2
nd
, 4th
order diversity Full duplex multi-carrier radio - connects to an external antenna
High system gain and interference robustness utilizing high
transmit power and low noise figure
Support for up to 10MHz channel bandwidth Increased capacity - multiple RF channels per sector through IF
Mux
Cell coverage using a 60o, 90o or 120o sectorized antennas
Outdoor
Configuration
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Micro Base Station
1U rack mounted base-station
controller
1,2 or 4 RF units configurations
Two deployment
configurations:
Sectorial - single sector coverage
Omni-type - for area coverage
Micro Base Station
RFU Integrated
with a Sector
Antenna
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Configuration &
Scalability Base station Increased capacity
3,4 & 6 sectors base station configuration
Multi-channel (1-4 channels per sector)
1-4 base station controllers per base station
Increased coverage
1,2 & 4 antennas per sector
Micro base station
Omni / sector antennas
Small isolated applications
Increased covera e / ca acit in s ecific
Range + Capacity
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Non - LOS Functionality
OFDM Modulation overcomes multi-path and deepfades in parts of the spectrum
Extended coverage and reach increasemarket share and revenue
Easier installation reduce operation &
installation cost, enabler for zero install
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Multi-RateAdaptive modulation
8 data rates supported
Optimizes throughput to respond to various
radio link conditions
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Standard based
technology Multiple vendors Lower investment risk for
operators
Sets the foundation for competitive, costeffective solution: Standard chip sets
Leverage economy of scale in production to drivedown the cost
Integration with laptops and PDAs zero cost CPE
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Customer Premises Equipment
(CPE)CPE types:
Indoor self installed CPE (integrated antennas)
Integrated outdoor CPE
PC Card
Laptop integrated
CPE benefits:
Interoperability and multiple vendor Support
Low cost through mass production
Outdoor
Self Install
PC Card
Laptop
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Interfaces at BTS
The following interfaces shall be supplied on each
BS:
Name Number 10/100 mbps 100 baseT 2
full duplex interface
Gbps SX 2 V5.2 E1 Interfaces 10
G.703 E1 Interfaces 10
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Interfaces at CPE
The following interfaces shall be suppliedon each CPE:
Name No. of interfacesType A B C
10/100 mbps 100 baseT 1 4 4
Ethernet interface USB interface 1 0 0
G.703 E1 Interfaces - 2 2
POTS interface - 4 -
VOIP interface - - 4
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Thank You