class 2

79
WiMAX Hardware WiMAX Hardware Welcome Welcome

Upload: mdtawhidur-rahman-pial

Post on 14-Nov-2014

310 views

Category:

Documents


3 download

DESCRIPTION

CSL WiMAX Hardware

TRANSCRIPT

Page 1: Class 2

WiMAX HardwareWiMAX Hardware

Welcome Welcome

Page 2: Class 2
Page 3: Class 2
Page 4: Class 2
Page 5: Class 2

ASN GatewayASN Gateway

Page 6: Class 2
Page 7: Class 2
Page 8: Class 2
Page 9: Class 2

Carrier Access Point ControllerCarrier Access Point Controller

Page 10: Class 2
Page 11: Class 2
Page 12: Class 2
Page 13: Class 2
Page 14: Class 2
Page 15: Class 2
Page 16: Class 2

Power (Power (––VeVe) 48 Volt for CAPC) 48 Volt for CAPC

Page 17: Class 2

CAPCAP--C CapacityC Capacity

AP Capacity:

The CAP-C is required to support a maximum of 1000 APs. The CAP-C will have a total of 5 active pCAPCs in a fully configured system. Therefore, each pCAPC and the components executing as part of that pCAPC must support a maximum of 200 APs.

Subscriber Capacity:

The subscriber capacity within the CAP-C is determined by the type of traffic, the mobility of that traffic, and the overall throughput that the traffic is introducing within the CAP-C. In WMX 1.0, total 1,000,000 subscribers can be upported by a CAP-C node and each pCAPC can support upto 200,000 subscribers.

Page 18: Class 2

CAP-C System Controller

Controller and Switching Blade. The System Controller provides both redundant layer-2 switching and system management.

CAP-C Payload Blade

Each CAP-C blade will be equipped with 8 GB ECC-enabled DDR2 RAM and can be extended up to 16 GBs. Each CAP-C will also be equipped with a rear transition module that comes equipped with dual GbE ports and a Fujitsu 37GB Serial Attached SCSI hard drive used for storing local software and logging information.

Power Entry Module (PEM)

The CAP-C chassis has PICMG 3.0 compliant, dual PEMs and is rated for -40VDC to - 72VDC.

Page 19: Class 2

Fan Tray Modules (FTM)

The CAP-C chassis supports three upper and one lower FTM. Each upper FTM houses 4 separate fans and are arranged for maximum volume air flow, even distribution, and fault tolerance.

Rear Transition Module (RTM)

The CAP-C System Controller will come equipped with a RTM that will provide connectivity to external devices. 4 GbE ports will be allocated for extending the data interface fabric to provide connectivity to an external IP network. 8 GbE ports will be reserved for future multi-chassis CAP-C support.

CAP-C Interfaces

1.CAP-C Physical Interface

CAP-C is physically connected to the IP network via the Ethernet interface. Typically, there will be routers in between the CAP-C and other WiMAX network entities, such as AP, AAA and EMS. Each active blade (System Controller or pCAPC) of CAP-C willhave a unique IP address for communication within the IP network.

Page 20: Class 2

2. CAP-C Logical Interface Types

There are three types of logical interfaces implemented in the CAP-C node for the system communication and operation management. The logical interfaces are defined as follows:

1. External Communication Interface2. Internal Communication Interface3. Operational Interface

1.External Communication InterfaceThis interface includes the following logical connections.

• CAP-C – AP• CAP-C – CAP-C• CAP-C – AAA• CAP-C - EMS• CAP-C – Router

The connections for CAP-C – AP, CAP-C – CAP-C and CAP-C - Router are controlledby CAP-C Link Management function. The communication between the CAP-C andAAA is being managed by the CAP-C AAA proxy server, which is the Authenticatorcomponent. For communication to the EMS, the CNEOMI-Lite Agent is implemented inthe CAP-C product and acts as the interface between the CAP-C and EMS.

Page 21: Class 2

2. Internal Communication InterfaceThe internal communication interface is implemented for messageprocessing between components. This interface will not have exposure to the network entities outside CAP-C node.

3. Operational Interface

The CAP-C Operational Interface consists of the following:• Local Maintenance Terminal (LMT)• CAP-C Shell Access

LMT is a web-based interface, which is used for day-to-day operations including account management, debugging CAP-C, alarm and statistics management, etc. CAP-C Shell Access is utilized to commission the CAP-C for the first time. This interface will not be used for normal operations.

Page 22: Class 2
Page 23: Class 2
Page 24: Class 2
Page 25: Class 2
Page 26: Class 2
Page 27: Class 2
Page 28: Class 2
Page 29: Class 2
Page 30: Class 2

Access Point PortfolioAccess Point Portfolio

• “Ultra-Light”AP

•Macro-cell Coverage in a compact package

•Fixed/Nomadic•Easy Install

• “Diversity” AP• 10% More

Coverage• Diversity Antennas

with MIMO support (2Tx/Rx)

• Mobility• Carrier-Class

Availability

•“Smart Antenna” AP•60% More Coverage•Smart Antennas with adaptive beam steering (8 TXAA)

•Mobility•Carrier-Class Availability

What this talkwill address

Page 31: Class 2

WiMAX Access PointsWiMAX Access Points

Diversity Access Point Smart Antenna Access PointUltra Light Access Point

Motorola’s WiMAX strategy considers a tiered portfolio to address varying market segments and their application requirements

» Fixed, nomadic and mobile» Data services and carrier-class voice» Multimodal handsets» MIMO

» Fixed, nomadic and mobile» Data services and carrier-class voice» Multimodal handsets » Strong indoor penetration» Beam steering

» Fixed, nomadic only application » Primarily data services and basic voice» Reduced cost to deploy and own, easy to

install and manage

Page 32: Class 2

WiMAX RoadmapWiMAX Roadmap

2006

•Net

work

s•D

evic

es

•3.5 GHz Fixed Networks

•Fixed Outdoor & Indoor Modems

•2.3, 2.5 & 3.5 GHz•Fixed & Mobile

Networks

•PC Cards & Vehicular Modems

•Handsets &Smart Phones

2007 2008

Page 33: Class 2

Access Point FeaturesAccess Point Features•Light Infrastructure» Significantly lighter and easier to install

than traditional Cellular infrastructure» Reduces service provider CAPEX and OPEX

•Architecture» Tower top RF avoids costly Coax cables

and associated power loss» Perfectly matches antenna and radio

performance

•Zero Footprint» All outdoor design» No AC shed required» Reduces site rental costs

•Flexibility» Software-only upgrade to support mobility» Upgrade option available for the Diversity

AP to support Smart Antennas

Page 34: Class 2

Light Infrastructure BenefitsLight Infrastructure Benefits

Traditional Cellular Infrastructure Light Infrastructure

Antennas Separate Modular

Active Elements Many Few

Civil Works Tower Pole/Stand

Cooling A/C Convection/Fans

Cabling Analog Coax Digital

Real Estate Traditional Zero Footprint

Equipment Housing Temp Control Building All Outdoor

Power Kilowatts Watts

Backhaul T1s Wireless IP

Installation Tools Heavy Equipment Hand Tools

Page 35: Class 2

Access Point Product ElementsAccess Point Product Elements

•Diversity Antenna RF Head

•Smart Antenna RF Head / Array

•Baseband Control Unit

Page 36: Class 2
Page 37: Class 2
Page 38: Class 2
Page 39: Class 2

Base Control UnitBase Control Unit

» Site Controller Card (1+1)» Modem Cards» Alarm Card» Power Supply (N+1)» Fan» Backplane» Surge Protection» Direct Air Cooling Filter

Each BCU supports up to 4 sectors

Enables support for full range of mobility options

Base Control Unit Components View

Page 40: Class 2

Site Controller

It is primarily a digital processing card that contains a microprocessor platform for the site level software, a frequency/timing reference circuit, an Ethernet switch, and interfaces for backhaul and site alarms and I/O. The BCU cabinetcontains slots for two site controllers in a redundant (1+1) mode.

Modem Card

It is a digital baseband card that contains a host microprocessors, DSPs, and an FPGA for performing 802.16e MAC and PHY rocessing. There are four modem slots in the BCU. The typical configuration requires one modem card per sector. Alternatively,one modem per two sectors can also be configured using a trunkedconfiguration.

Alarm/IO

It provides connectivity to the backhaul, remote GPS receiver and

customer I/O.

Page 41: Class 2

Power Supply

The BCU contains slots for three mains power supply units. Only two are required to power a fully populated site, the third can be optionally installed to allow for N+1 redundancy.

2.1.6 FansThe BCU is cooled by forced air via the air plenum and contains a fan tray containing a single fan. The fan has a tachometer output that allows it to be alarmed approximately one week before it actually fails. Similar designs have achieved >90% success in alarming fans before failure.

BackplaneThe backplane allows for interconnectivity of the site controllers, modems, and the Alarm/IO card. It also provides +27 VDC power to each of the cards.

Surge ProtectorThe BCU has two surge elements. There’s a module that protects the mains power input and there is a surge card that protects the backhaul, GPS, customer I/O, and power feeds to the RF heads.

Page 42: Class 2

Base Control UnitBase Control Unit•10 / 100 / 1000 Base - T Ethernet Network Interface Redundancy Options:

» Ethernet Network Interface» Optional holdover oscillator in case GPS is lost (24

hour free run operation)

» Optional N+1 Modem Card, N+1 Power Supply, 2N Controller Cards, 2N Fiber Optic Links

•Power Options» AC: 88-270 VAC Single Phase» DC: +27 or -48 VDC

»Heaters for guaranteed cold start below 0°C ambient»Flexible mounting options(e.g. pole, building wall, floor)»Optical link between the BCU to the RF Head is a proprietary interface

Page 43: Class 2

Other BCU TidbitsOther BCU Tidbits

• 10 / 100 / 1000 Base - T Ethernet Network Interface• Redundancy Options:

– Ethernet Network Interface– Optional holdover oscillator in case GPS is lost

• Up to 48 hour free run operation» N+1 Modem, N+1 Power and 2N Controller

• Power options: – AC: 88 – 270 VAC Single Phase– DC: +27 or -48VDC

• Heaters for guaranteed cold start below 0°C ambient• Different mounting options (pole, building wall, floor)• Optical link to RF Head is a proprietary interface

Page 44: Class 2
Page 45: Class 2
Page 46: Class 2
Page 47: Class 2

Ultra LightAccess Point(x4 sectors)

GPS Antenna

Cluster Management Module

OutdoorSubscriberModules

Surge SuppressorPower Source

Ultra Light AP 3500 ElementsUltra Light AP 3500 ElementsThe Ultra Light 3500 system includes the following elements:

» Ultra Light 3500 Access Points (1 to 4 sectors)

» Cluster Management Module

» GPS Antenna

» Power Source & Surge Suppressor

» Outdoor Subscriber Modules

» Prizm Element Management System

» “zero-footprint” base sites with all outdoor design for flexible, unobtrusive installations

» Built on a flexible hardware platform, supports no-touch, software upgrades for easy installation of product updates

» Single RJ45 port for data and power through Power over Ethernet (POE) implementation

Design Features

Page 48: Class 2

Ultra Light 3500Ultra Light 3500Ultra Light RF Module

Architecture 802.16e based solution

Dimensions 180 W x 1320 H x 130 D mm

Weight 7.5 kg

Cluster Management Module

Architecture Weatherized Outdoor Unit

Application

» Fixed only application » Primarily data services and basic voice» Reduced cost to deploy and own, easy to install

and manage

Dimensions 432 W x 330 H x 165 D mm

Weight 11.3 kg

Page 49: Class 2

Sec

tor R

ecei

ve 1

Sec

tor T

rans

mit

1

Filter

Sec

tor R

ecei

ve 2

Sec

tor T

rans

mit

2

Filter

Sec

tor R

ecei

ve 3

Sec

tor T

rans

mit

3

Filter

Sec

tor R

ecei

ve 4

Sec

tor T

rans

mit

4

Filter

Layer 2Packet Switch

Site I/OAlarmsGPS

SiteController

Ethernet Backhaul10/100 Mbps RJ45

55 VDC Power Supply

Cluster Management Module

Sector 1 Sector 2 Sector 3 Sector 4

GPS

RJ45 with PoE

Functional SchematicFunctional Schematic

» 4 sector configuration

» 43 dBm EIRP

» Max distance from CMM = 100 meters

Ultra Light 3500 Access Points

Cluster Management Module» Weatherized outdoor unit at bottom of tower

» Ethernet frames and their IP payloads transported to the Access Point via Cat 5

Page 50: Class 2

Outdoor Subscriber UnitOutdoor Subscriber Unit

Ultra Light RF Module

Architecture 802.16e based solution

Dimensions 254 W x 355 H x 76 D mm

Weight 2.5 kg

Page 51: Class 2

Feature Name Description

Broadband Connectivity SolutionInitial release of Wireless Broadband System targeted at underserved connectivity markets

Ultra-LightAccess Point(3.5 GHz)

Cluster of tower-top AP modules and a tower-bottom cluster management module (CMM)3.400-3.600 GHz frequency band with 3.5 MHz channel bandwidth4 sectors with N=4 frequency reuse.

Outdoor CPE(3.5 GHz)

Outdoor mounted, Ethernet output, power over Ethernet with small indoor AC adapter. 3.400-3.600 GHz frequency band with 3.5 MHz channel bandwidth.

OFDM Air Interface Proprietary Orthogonal Frequency Division Multiplexing with 256 FFTs

Adaptive Modulation Adaptive modulation

Ethernet Bridge Function Layer 2 switch built into CMM

High-Priority QoS Best-effort (BE) and high-priority (ERT-VR) Quality of Service

OTA Upgradeable Remote, over-the-air software and firmware upgrades

Prizm EMS Support Adds ULAP and Outdoor CPE to Prizm EMS

Ultra Light System Release 1.0(Committed)

ULAP 3500 ULAP 3500 SystemSystem ReleasesReleases

Page 52: Class 2

Feature Name Description

802.16e Software

Software upgrade to replace proprietary OFDM Air Interface with the 802.16e-2005 air interface, authentication and security mechanisms in the ULAP and Outdoor CPE The software implements a subset for the features required for WiMAX Forum Certification Waves 1 and 2, but is intended to interoperate with 3rd party WiMAX Certified CPEs.

7 MHz Channels Upgrades 3.5 MHz channel bandwidth to 7 MHz channel bandwidth inULAP and Outdoor CPE. Also replaces N=4 with N=2 frequency reuse.

Motorola WIMAX CPE Support ULAP support of Motorola 3.5 GHz Desktop CPE

Motorola WiMAX AP Support Outdoor CPE support of Motorola 3.5 GHz Diversity Access Point

3rd Party CPE Support ULAP support of 3rd party vendor WiMAX Wave 1 Certified CPEs

Ultra Light System Release 2.0(Candidate)

Page 53: Class 2

Computer

Surge Suppressor

Outdoor Subscriber Module

Outdoor Mounting

Bracket

CAT-5 Outdoor Cable

Power SourceWall Mount

Grounding Conductors

Power Service Panel

» Outdoor Subscriber Unit 3500 is bracket mounted to an outdoor face of the premises

» An outdoor CAT-5 cable provides connection through a surge suppressor to the interior

» Once inside the premises, the Cat-5 cable connects, via a power adaptor, to the end-user device

» A wall mounted source delivers power to the power adapter

» Grounding conductors provide electrical protection to the Outdoor Subscriber Unit 3500 and Surge Suppressor

» For multi-user implementation, the Outdoor Subscriber Unit 3500 may be connected to an Ethernet switch

Customer Site ImplementationCustomer Site Implementation

Page 54: Class 2

3.5 MHz Channel Range(km)

Coverage(sq. km)

Capacity per sector Downlink

(Mbps)

Capacity per sector Uplink

(Mbps)

Rural 22.5 1014.3 3.7 1.4

Suburban 7.5 112.5 3.7 1.4

Light Urban 3.0 17.6 3.7 1.4

Dense Urban 2.4 11.9 3.7 1.4

7.0 MHz Channel* Range(km)

Coverage(sq. km)

Capacity per sector Downlink

(Mbps)

Capacity per sector Uplink

(Mbps)

Rural 29.1 1690.1 6.6 2.5

Suburban 9.7 187.4 6.6 2.5

Light Urban 3.8 29.3 6.6 2.5

Dense Urban 3.2 19.9 6.6 2.5

Simulation results based on following parameters:• 3.5GHz Band; 75% / 25% Downlink/Uplink split• Target service at cell edge: 1.024Mbps Downlink, 128 kbps Uplink (90% cell coverage)• Ultra Light antenna height from ground: 30m, Outdoor Subscriber Unit height from ground: 7m• Full buffer data traffic model (e.g. video/audio streaming)• based on average single user connection speed throughout sector

* 7 MHz channel bandwidth supported following software upgrade to system

Throughput & CoverageThroughput & CoverageThe Ultra Light Access Point 3500 can be effectively deployed to address both throughput & coverage

Simulation results utilizing Outdoor Subscriber Unit 3500

Page 55: Class 2
Page 56: Class 2

Diversity Access PointDiversity Access PointDiversity RF Module

Architecture

Dual Antenna ElementsDual TX / Rx ChainsMIMO Support withSpace Time Coding (STC)

Dimensions 712H x 178W x 229D mm (28”x7”x9”)Weight 16 kg* (35 lbs)

Base Control Unit

Architecture

Weatherized Outdoor UnitPole or Ground MountedFull Mobility SupportCarrier-Class Availability

Subscribers

» 3000 users across the site as combination of active, idle & sleep» 256 active users per sector» 256x4=1024 active users for four sector configuration

Application

» Fixed, nomadic and mobile» Data services and carrier-class voice» Multimodal handsets» MIMO

Dimensions 788H x 508W x 483D mm (31”x20”x19”)Weight 68 kg (150 lbs)

Page 57: Class 2

Diversity Logical SchematicDiversity Logical Schematic

Sect

or 1

TX/

RX

A

Sect

or 1

TX/

RX

B

Filte

r

Filte

r

Sect

or 2

TX/

RX

A

Sect

or 2

TX/

RX

B

Filte

r

Filte

r

Sect

or 3

TX/

RX

A

Sect

or 3

TX/

RX

B

Filte

r

Filte

r

Sect

or 4

TX/

RX

A

Sect

or 4

TX/

RX

B

Filte

r

Filte

r

Mod

em S

ecto

r 1

Mod

em S

ecto

r 2

Mod

em S

ecto

r 3

Mod

em S

ecto

r 4

Con

trolle

r(M

ain)

Con

trolle

r(O

ptio

nal R

edun

dant

)

Site

IOA

larm

sG

PS

Power Supply1

Power Supply2

Power Supply(Optional Redundant)

External Alarms

10/100/100 Base T

GPS

DC Power

High Speed Serial Fiber Link

» 4 Sector Typical Configuration

» 2TX / 2RX Chains

» Each Transceiver supports diversity reception

» Pout = 1 Watt per TX

» Optional filters for severe interference environments

DiversityRF Modules

BaseControlUnit

Page 58: Class 2
Page 59: Class 2

Diversity Antenna RF HeadDiversity Antenna RF Head

5.5 in.

28 in.

24.5 in.

3 in.

5 in.

8 in.

7.5 in.

SMALL HEAD DIMENSIONS(WORST CASE)

RFModule

Antenna6.5 in

TRX

#1

TRX

#2

Filte

r(O

ptio

nal)

Filte

r(O

ptio

nal)

SERDES

DCPower

Fiber Optic Links(optionally redundant)

To BCU

Protective cover not shown

Page 60: Class 2

Throughput & Coverage Throughput & Coverage –– 2.5 GHz, 10 2.5 GHz, 10 MHz Channel BWMHz Channel BW

Indoor CPE2.5 GHz10 MHz Channel

Range(km)

Coverage(sq. km)

Capacity per sector Downlink

(Mbps)

Capacity per sector Uplink

(Mbps)

Rural 3.8 28.3 10.92 1.36

Suburban 1.3 3.6 10.92 1.36

Light Urban 0.6 0.7 10.92 1.36

Dense Urban 0.5 0.6 10.92 1.36

Outdoor CPE2.5 GHz10 MHz Channel

Range(km)

Coverage(sq. km)

Capacity per sector

Downlink (Mbps)

Capacity per sector Uplink

(Mbps)

Rural 57.6 6631.6 16.5 2.1

Suburban 20.5 836.5 16.5 2.1

Light Urban 8.7 152.6 16.5 2.1

Dense Urban 7.2 103.1 16.5 2.1» Simulation results based on following parameters:» 2.5GHz Band; 10MHz channel bandwidth; 75% / 25% Downlink/Uplink split» Target service at cell edge: 1.024Mbps Downlink, 128 kbps Uplink (90% cell coverage)» Ultra Light Access Point 3500 antenna height from ground: 30m, Outdoor Subscriber Unit height from ground: 7m, Indoor Subscriber Unit height from

ground: 1.5m» Indoor penetration loss of 15 dB» Full buffer data traffic model (e.g. video/audio streaming)» Based on average single user connection speed throughout sector

The Diversity Access Point can be effectively deployed to address both throughput & coverage

Page 61: Class 2

Throughput & Coverage Throughput & Coverage –– 3.5 GHz, 7 3.5 GHz, 7 MHz Channel BWMHz Channel BW

Indoor CPE3.5 GHz7 MHz Channel

Range(km)

Coverage(sq. km)

Capacity per sector Downlink

(Mbps)

Capacity per sector Uplink

(Mbps)

Rural 3.5 23.8 7.5 0.9

Suburban 1.2 2.7 7.5 0.9

Light Urban 0.5 0.4 7.5 0.9

Dense Urban 0.4 0.3 7.5 0.9

Outdoor CPE3.5 GHz7 MHz Channel

Range(km)

Coverage(sq. km)

Capacity per sector Downlink

(Mbps)

Capacity per sector Uplink

(Mbps)

Rural 56.6 6407.1 11.2 1.4

Suburban 18.8 709.9 11.2 1.4

Light Urban 7.5 111.0 11.2 1.4

Dense Urban 6.1 74.9 11.2 1.4

» Simulation results based on following parameters:» 3.5GHz Band; 7MHz channel bandwidth; 75% / 25% Downlink/Uplink split» Target service at cell edge: 1.024Mbps Downlink, 128 kbps Uplink (90% cell coverage)» Ultra Light Access Point 3500 antenna height from ground: 30m, Outdoor Subscriber Unit height from ground: 7m, Indoor

Subscriber Unit height from ground: 1.5m» Indoor penetration loss of 15 dB» Full buffer data traffic model (e.g. video/audio streaming)» Based on average single user connection speed throughout sector

The Diversity Access Point can be effectively deployed to address both throughput & coverage

Page 62: Class 2
Page 63: Class 2
Page 64: Class 2
Page 65: Class 2

WiMAXSmart Antenna Access Point

Page 66: Class 2

Smart Antenna RF HeadSmart Antenna RF Head

3 in.

29 in.

39.5 in

8 in.

5 in.

22 in.

5.2 in.

LARGE HEAD DIMENSIONS

RFModule

Antenna

TRX

#1

TRX

#2

Filte

r

Filte

r

TRX

#3

TRX

#4

Filte

r

Filte

r

SERDES

DCPower

Fiber Optic Links(optionally redundant)

To BCU

Page 67: Class 2

Smart Antenna RF HeadSmart Antenna RF Head

RF Module

Antenna

“Hot Pocket”

MountingBracket TRX Modules

Sector I/O Boards(main & redundant)

Surge Module

Enclosure

Access Panel

Backplane

TRX Modules

Sector I/O Boards(main & redundant)

Surge Module

Enclosure

Access Panel

Backplane

Page 68: Class 2

Smart Antenna Access PointSmart Antenna Access Point

Smart Antenna RF Module

ArchitectureEight Antenna Elements4 TX Chains, 8 Rx ChainsAdaptive Beam Steering

Dimensions 23” W x 41” H x 10” DWeight 106 lbs (No FRU>15 lbs)

Base Control Unit

Architecture

Weatherized Outdoor UnitPole or Ground MountedFull Mobility SupportCarrier-Class Availability

Subscribers» 3000 users across the site as combination of active, idle & sleep» 256 active users per sector» 256x4=1024 active users for four sector configuration

Application» Fixed, nomadic and mobile» Data services and carrier-class voice» Multimodal handsets» Strong indoor penetration

Dimensions 788H x 508W x 508D mm (31”x20”x20”)Weight 68 kg (150 lbs)

Page 69: Class 2

Smart Antenna Logical SchematicSmart Antenna Logical Schematic

Mod

em S

ecto

r 1

Mod

em S

ecto

r 2

Mod

em S

ecto

r 3

Mod

em S

ecto

r 4

Con

trolle

r(M

ain)

Con

trolle

r(O

ptio

nal R

edun

dant

)

Site

IOA

larm

sG

PS

Power Supply1

Power Supply2

Power Supply(Optional Redundant)

External Alarms

10/100/100 Base T

GPS

DC PowerHigh Speed Serial Fiber Link

» 4 Sector Typical Configuration

» 4TX / 8RX Chains

» Each Transceiver supports adaptive beam forming

» Pout = 1 Watt per TX

» Optional filters for severe interference environments

Smart AntennaRF Modules

BaseControlUnit

Sect

or 3

TX/

RX

A

Sect

or 3

TX/

RX

B

Filte

r

Filte

r

Sect

or 3

TX/

RX

C

Sect

or 3

TX/

RX

D

Filte

r

Filte

r

Sect

or 2

TX/

RX

A

Sect

or 2

TX/

RX

B

Filte

r

Filte

r

Sect

or 2

TX/

RX

C

Sect

or 2

TX/

RX

D

Filte

r

Filte

r

Sect

or 1

TX/

RX

A

Sect

or 1

TX/

RX

B

Filte

r

Filte

r

Sect

or 1

TX/

RX

C

Sect

or 1

TX/

RX

D

Filte

r

Filte

r

Sect

or 4

TX/

RX

A

Sect

or 4

TX/

RX

B

Filte

r

Filte

r

Sect

or 4

TX/

RX

C

Sect

or 4

TX/

RX

D

Filte

r

Filte

r

Page 70: Class 2
Page 71: Class 2

Smart Antenna RF ModuleSmart Antenna RF Module

•Antenna Gain ~ 17 dBi per element

•TX power 1 Watt per antenna

•Supports adaptive beam forming» Increases coverage (6 – 10 dB link improvement)» Enables adaptive interference cancellation - important

for full 1x1 cell reuse patterns without significant capacity loss

•Redundancy» Independent RF transceivers offers limited loss of RF

coverage with single RF failure» Redundant optical fiber link to BCU cage for redundant

modem and optical link support» Redundant calibration transceiver for adaptive antenna

optimization

Page 72: Class 2

Smart Antenna RF HeadSmart Antenna RF Head• Antenna Gain ~ 14 dBi per element• TX power 1 Watt per antenna• Supports adaptive beam forming

– Increases coverage (6 – 10 dB link improvement)– Enables adaptive interference cancellation. Important

for full 1x1 cell reuse patterns without significant capacity loss

– Improves throughput at given distance from antenna site– Self calibrating adaptive antenna system for optimal

performance• Can also support MIMO in a reduced mode using subset of

array• Redundancy

– Independent RF transceivers offers limited loss of RF coverage with single RF failure

– Redundant optical fiber link to BCU cage for redundant modem and optical link support

– Redundant calibration transceiver for adaptive antenna optimization

Page 73: Class 2

General RulesGeneral Rules

• 1 RF Head = 1 RF Carrier frequency– Expansion: Widen RF channel or add RF heads and BCU

• 1 Modem card supports 1 RF Head (usually)– For Diversity Antenna RF head, 1 Modem can support up

to 3 RF heads at 1/3 capacity each. Lowest cost, lowest capacity sector option.

– For Smart Antenna RF head, always use 1 Modem card per RF Head

– Modem Card capacity optimized for 10 MHz channels• Each RF Head must always map to a single modem card

– No pooling of modem resources across modem cards• 100 meter max distance between BCU and RF Head

connections• All sites must be synchronized

– GPS for system timing– Same duty cycle (downlink to uplink ratios)

Page 74: Class 2
Page 75: Class 2
Page 76: Class 2
Page 77: Class 2
Page 78: Class 2
Page 79: Class 2

ThanksThanks