8-Zxwr Bbub+r8840 System- 66

ZXWR BBUB+R8840 System

ZTE University

TD&W&PCS BSS Course Team

Content

Distributed Base Station Overview

ZXWR BBUB

ZXWR R8840

Networking and Application Scenario

Success Stories

Why and What

Why do we need distributed base station?

Difficulty in mobile network construction

? Difficult to obtain base station site? Difficult to transport and install? High cost for site rent charge , installation an

d transportion

The Base Band module and Radio Frequency Unit are divided

into two independent equipments

What is distributed base station?


Fast Network Deployment

RRURRU

BBUBBU

Iub CPRI

Independent Installation

Independent Capacity expansion

IndependentEvolution

Small volume Install in small space Flexible network deployment

Integrative design Excellent adaptability Close to antenna


Construct excellent network

High performance HSPA, smooth upg

rade to HSPA+

4 carriers

With the same high capability and performance as the macro NodeB

Excellent network

RRU close to coverage area

Short RF feeder, lower RF loss

Suitable for indoor coverage

Improving services quality

Sharing base band resource


Benefit to operators

Low cost of equipment room

Less equipment room?

Unsuitable position?

No problem!

Low cost of construction

Small dimension

Light weight

Deploy close to antenna

Carry and install by one person

Low cost of maintenance

High efficiency PA, lower power consumption

Less cost of equipment room ,power ,air-condition…

Clear network architecture


Development Trend of base station

Convenient Construction , Deploying Network Fast

Small dimension & light weight => Easy transportation & installation

Flexible networking => Networking neatly according to various situation

Performing Full Indoor Coverage , Improving Services Quality

Deploying RRU near by the antenna to reduce the radio ullage

High Utilization Rate of Base Band ,Smooth Upgrade

Shared base band resource with dynamical configuration, reducing the cost

Convenient to Expanding, no influence on the network architecture

Clearer Network Architecture ,Easier Maintenance

Low OPEX

Low CAPEX


Leader of the Distributed Base Station Solution

Easy Installatio

n

Update Directly

Smaller Dimensi

on

CDMA2000CDMA2000

WCDMAWCDMATD-SCDMATD-SCDMA

WiMAXWiMAX

GSMGSMBBU

RRU

+

　 All of our WCDMA products, as well as CDMA2000, TDSCDMA, Wimax,WCDMA,GSM ,are based on the all-IP hardware platform, currently it has been successfully applied for more than 3 years in global (Till 2007);


Content


ZXWR BBUB

ZXWR R8840


Success Stories

BBUB Physical Structure

3U

19 inch

Product AppearanceProduct Appearance

Power Module

FNB BoardETTB Board

BP Board

CCI Board Fan Module

BP: Base Band Processing Board

CCI: Clock, Control and Interface Board

ETTB: E1/T1 Interface Board

FNB: FE Interface, Input/Output node point interface, RS232/RS485 Interface Board

Board IntroductionBoard Introduction

ZXWR BBUB

BBUB System structure

BP (Base Band Processing Board)

The BP board processes the physical layer protocol and frame

processing protocol specified by the 3GPP, including:

Downlink service data coding/multiplexing, rate matching, channel

mapping, frequency spread and scrambling, power weighting and

channel synthesis

Uplink signal RAKE receiving and channel decoding

Radio link synchronization and transmission frame processing

Measuring parameters required in power control and handover

Softer handover and transceiving diversity.

Communicating with the CCI via the Ethernet interface

ZXWR BBUB


Providing IQ uplink/downlink

Reading all the hardware management identifiers, including the backplane type

number, slot number, board function type, board version, board function configu

ration identifier, and the CPU serial number

Resetting upon power failure of a single board

One BBUB supports at most 4 BP boards. These 4 BP boards can serve as a b

aseband pool, which realizes base band resource sharing.

Operation and Management of the Distributed Base Station system including B

BUB and RRU.

Iub interface protocol processing (NBAP, SSCOP and ALCAP)

Ethernet switching function, implementing data exchange for base band service

flow and control flow in the system

Distribution of system clock and synchronization signal

ZXWR BBUB


CCI (Clock， Control and Interface Board)

Operation and Management of the Distributed Base Station syste

m including BBUB and RRU.

Iub interface protocol processing (NBAP, SSCOP and ALCAP)

Ethernet switching function, implementing data exchange for base

band service flow and control flow in the system

Distribution of system clock and synchronization signal

Providing interface to RRU

Environment monitoring includes power, temperature fan and etc.

ZXWR BBUB


Providing a physical interface to the RNC, perf

orming information exchange between BBUB

and RNC.

Providing IPOA channel to OMC-B

Support ATM and IP access

Support various transmission interfaces, includ

es 2 STM-1, 6RRU fiber interface， and 1 LM

T interface

ZXWR BBUB


ETTB（ E1/T1 Interface Board） ETTB provides the following functions:

Lighting protection and spectrum filter function, and active/standby switchover CCI boards

Each ETTB board supports 4 E1/T1. BBUB can support 8 E1 at most while 2 ETTB boards configured

To support 2 E3/T3 interfaces, the ETTB board is replaced by E3/T3 interface board

ZXWR BBUB


FNB (FE Interface, Input/Output node point interface, RS232/RS485 Interface Board)

FNB provides the following functions: Provide 2 FE interfaces and protection circuit for these interfaces Provide 6 Node Point (input/output) interfaces and protection circuit for

these interfaces Provide 1 RS232, 1 RS485 (full duplex/semi duplex compatible) interfaces

and protection circuit for these interfaces Configure these interfaces according to requirement.

ZXWR BBUB


FAN( Fan Module)

BBUB has 6 fans. The FCB (Fan Control Board) inside the r

ack controls the fans in two groups to realize rotate speed d

etection and control.

FAN shelf supports hot-plugging. Air filter can be configured

at the right side of FAN shelf.

BPWA (Power Module)

Power conversion, filter and lighting protection functions.

Supports -48V DC power inputs.

ZXWR BBUB

BBUB Hardware Structure and Features

All IP switching, evolve to

IP UTRAN

High integrity, large

capacity and smooth

expansion

High performance HSPA,

smoothly upgrade to

HSPA+

Shelf plug-in design,

convenient installation

Abundant interfaces,

flexible networking

Flexible power supply,

compatible to various

environments

Features:Features:

ZXWR BBUB

BBUB Software Structure

BBUB software Board Software Package OMC (Operation and Maintenance Centre) LMT (Local Maintenance Terminal).

ossoss

HardwareHardware

VxWorksVxWorks BSPBSP

TNSTNS RCSRCSOAMOAM

DBSDBS BBSBBSApplication

OS & Driver & Support

Hardware System

OMC

The integrated NMC

(network manageme

nt center) of the BBU

B system

LMT Local operation and maintenance terminal

Manageing a single BBUB and facilitate on-sit

e maintenance.

Board Software Package The basic package for BBUB to run normally

ZXWR BBUB

Product Function

Service Function

LCS R99 Services HSDPA HSUPA MBMS

MICH

S-CCPCH

Physical channel

FACH

R99 UL DCH/CCHMSCH

MCCH

MTCH

Media Server

Transport channelLogic channel

MCCH

Service Function 12 CS 512 voice call Over 250km/h Time delay

measurement Compensation

between BBUB & RRU

LCS

ZXWR BBUB

Baseband Capacity Smooth Expansion

ZXWR BBUB single shelf

capacity:

4 BP boards with full

configuration

12 cells are supported

Support two shelf stack,

baseband smooth expansion

Expansion: Step 1

Expansion: Step2

4*128CE/BP

Two shelf stack

Flexible configuration for Flexible configuration for different capacitydifferent capacity

ZXWR BBUB

Advanced Baseband Design － High Integrity and Large Capacity

Baseband processing (BP) boar

ds with large capacity, support

UL/DL 128CE respectively - lea

ding in the industry

Separate UL and DL design, C

E shared among three sectors,

CE utilization efficiency improve

d

Labeled CE is for traffic process,

while BP has the extra process

capability for handover, diversit

y and common signaling proces

s.

Labeled CE

Labeled CE

DCH

soft HO

softer HOCCH

Compress mode

2-wayRx Diversity

Tx Diversity

Labeled

CE

Extra Processin

g Capacity

ZXWR BBUB

High Performance HSDPA, Smoothly Evolve to HSPA+

Independent HSPA Process EngineIndependent HSPA Process Engine

CS12.2K/CS64K/PS

R99 service and

signaling

process engine

HSPA service HSPA service

process engineprocess engine

FTP Server

Streaming Server

CS12.2K/CS64K/PS

HSPA Terminal

BP board HSPA process capability:

BP: support 128CE and simultaneous 45Mbps HSPA process capability

ZXWR BBUB

All-IP Structure, Smoothly Evolve to IP UTRAN

Based on all-IP unified hardware platform; Adopt all IP switching among boards. FE interface is supported; ATM/IP dual protocol stack benefits to smooth upgrade

to IP UTRAN. Support Fractional E1 and channelization STM-1, CES, silence frame compressio

n and 2G/3G co-transmission.

FEFE

E1SDH

ZXWR R8840

ZXWR BBUBZXWR BBUB ZXWR RNC

FE/GEIP

Support hybrid transmission Support hybrid transmission Smoothly evolve to IP UTRANSmoothly evolve to IP UTRAN

ZXWR BBUB

Shelf Plug-in Design － Flexible Deployment

Flexible InstallationFlexible Installation Integrative power cabinetIntegrative power cabinet

Share cabinet with 2G BTSShare cabinet with 2G BTS Basement deploymentBasement deploymentZXWR BBUB

Shelf plug-in design, flexible deployment, save 3G equipment room spaceShelf plug-in design, flexible deployment, save 3G equipment room space

Install at the light current well of the

residential or office building :

convenient installation

easy power access

easy maintenance

Build-in BBU, supply AC

& DC and large capacity

UPS. Supply power for

BBU and RRU simultan

eously.

Small volume, light weight,

cabinet shared with 2G or

switching equipment, decrease

construction difficulty.

BBU can be placed in

basement equipment

room where the roof

equipment room is

difficult to obtain.

ZXWR BBUB

Summary

ZXWR BBUB support 512CE ,12CS per shelf, 3U height --- the largest

capacity with smallest dimension BBU in the industry.

ZXWR BBUB has small dimension, light weight, low power consumption.

ZXWR BBUB supports high performance HSPA, evolve to MBMS、 HS

PA+ with software upgrade only.

ZXWR BBUB provides E1/T1, E3/T3, STM-1 and FE, etc. interfaces, an

d supports Fractional E1, CES, Microwave, etc. transmission solution.

ZXWR BBUB supports ATM/IP dual-protocol stack. Hybrid transmission

is supported on Iub interface. Smoothly evolve from ATM UTRAN to IP

UTRAN.

ZXWR BBUB

Content


ZXWR BBUB

ZXWR R8840


Success Stories

ZXWR R8840 Product Overview

ZXWR R8840 Brief Introduction A kind of ZTE self developed Radio

Remote Unit It has macro RRU capability Connecting with ZXWR BBU to be the

distributed base station Fulfill 3GPP standards

R RRU 8 WCDMA 8 Outdoor 40 40 Watt

ZXWR R8840

ZXWR R8840 Product Index

ZXWR R8840 Hardware Structure

Receive Signal Processing UnitF

iber In

terface

Receive Signal Processing Unit

Transmit Signal Processing Unit

DFL

HPA

RPW AC/DC

Pre-distortion feedback

RTR

BBURNC

TX/RX1

RX2

R8840 Hardware

RTR: RRU Transceiver

DFL: Duplex Filter LNA

HPA: High-efficiency Power Amplifier

RPW: RRU Power

35% efficienc

y.

50% power

consumption saving

ZXWR R8840

R8840 System Structure

RTR (RRU Transceiver)

The RTR has following functions:

Process received signal and transmit signal;

Radio signal uplink convert and downlink convert;

Downlink IQ signal multiplexing, uplink signal de-multiplexing;

Signal amplifying, filter, A/D convert, D/A convert;

Convert between optical signal and electric signal, optical wave

multiplexing;

Capture reference signal from base band unit and provide the

reference clock signal to other units;

ZXWR R8840


• Standing wave measurement and report;

• Hardware failure self-detection;

• Alarm report;

• Environment temperature monitor;

• Provide communication interface: 2 CPRI interfaces, 2 external alarm input nodes, 2 external alarm port output nodes, 1 RS485 serial port for external monitor equipment communication, 1 fast Ethernet port and 1 RS232 serial port for LMT, 1 AISG for electrical tilt antenna, 1 co-cabinet port for realization of co-cabinet;

• Reset function;

DFL (Duplex Filter LNA):

The DFL has following function:

• Combined and isolate transmitted and received signal;

• Filter the transmitted signal and received signal;

• LNA (low-noise-amplifier) function;

• LNA alarm report to RTR;

ZXWR R8840


PA (Power Amplifier)

The PA has following function:

Performs radio signal amplifying function;

Temperature report function;

Over-current, over-heat, over-power, over-standing wave

protecting function;

RPW AC/DC (RRU Power AC/DC)

The RPWAC/DC has following function:

RPWAC is the power unit for AC and RPWDC is the power unit for

DC;

AC to DC or AC to AC convert function;

Alarm report to RTR for low-voltage, over-voltage, over-current

etc.

ZXWR R8840

Interface of R8840

ZXWR R8840

ZXWR R8840 Functionalities ZXWR R8840 Functionalities

Support 20W or 40W output power configuration, 20W can be obtained

by license

Support 4 carriers in 1 sector with 40W output configuration

Single R8840 support two receiving paths and one transmit path

Support over loading protection function for power amplifier

Overload protection function for power amplifier

R8840 software fault will not affect the running of BBU and other R8840

which connected to it

Support alarm interface for backup power

Support alarm interface for lightning protector

Support AISG interface for antenna electrical tilt

Support TMA

…

Security Protection

A B

TMA

D

Backup

C

ZXWR R8840

ZXWR R8840 Features

ZXWR R8840 Highlights Compact, light-weight, easy installation

Only 16.5Kg, 19 liter << conventional Node B

Portable, easy installation, fast engineering

High efficiency PA & low power consumption ZTE patent HPA achieve 35% efficiency

3 times greater than the conventional type

Compact & Light

36

0mm

320mm 165mm

16.5Kg only

Patent HPA

Efficiency

Forwardfeed

DPD+ABDPD+Doherty

ZTE DPD+Doherty

13%19%

25%

35%

ZXWR R8840

ZXWR R8840 Features

ZXWR R8840 Highlights Multi-band frequency supported

Standard UMTS 2100 UMTS 850, 900 ,1900 for various applications

4 carriers support High capacity & expandability

Multi-frequency

2100MHz

1900

850MHz

900MHz

4 Carriers

R99: f1, f1+f2

HSPA: f1+f2+f3

HSPA+: f1+f2+f3+f4

ZXWR R8840

Capacity Upgraded Smoothly

When the amount of traffic increases, R8840’s downlink capacity can be upgraded in two different ways

R8840 R8840

ANT ANT

BBU

TR/XR

TR/XRRX

RX

1C1S (S1) 1C2S (S11)Add R8840

SW upgrade1C3S (S111)

2C1S (S2)

Add

Car

rier

SW

upg

rade

2C2S (S22) 2C3S (S222)

3C1S (S3) 3C2S (S33) 3C3S (S333)

4C1S (S4) 4C2S (S44) 4C3S (S444)

Add R8840

SW upgrade

Add R8840

SW upgrade

Add R8840

SW upgrade

Add R8840

SW upgrade

Add R8840

SW upgrade

Add R8840

SW upgrade

Add R8840

SW upgrade

Add

Car

rier

SW

upg

rade

Add

Car

rier

SW

upg

rade

Add

Car

rier

SW

upg

rade

Add

Car

rier

SW

upg

rade

Add

Car

rier

SW

upg

rade

Add

Car

rier

SW

upg

rade

Add

Car

rier

SW

upg

rade

Add

Car

rier

SW

upg

rade

ZXWR R8840 Transmit DiversityTransmit diversity with co-cabinet

The capacity upgrade solution : 1 R8840 maximal support 4 carriers in 1 sector; When 2 sectors are required, 2 R8840 are needed; when 3 sectors required, 3 R8840 are needed.

ZXWR R8840

ZXWR R8840 Features

ZXWR R8840 Highlights Flexible power supply options

DC, AC or remote power supply

Outdoor security design Water/dust proof, rigid metal case

AC/DC Power Security

BBU

Optical fiber power feed

battery

BBU

ZXWR R8840

ZXWR R8840 Product Indices

ZXWR R8840 Physical Indices

Fiber

36

0mm

320mm 165mm

Div.

Feeder

AISG

Compact & Light

COLOR

Silver

CASE MATERIAL

Aluminum

DIMENSION (H*W*D)

360*320*165mm | 19 Liter

WEIGHT

16.5 Kg

OUT- OR INDOOR

All capable

INSTALLATION

On pole, tower, wall or rack

Convenient installation to save the space and shorten the engineering period

ZXWR R8840


ZXWR R8840 Electrical Indices

Cover

Water/dust proof

ON TOP OUTPUT POWER

40W or 20W with different PA

POWER CONSUMPTION

190W or 130W according to the PA

POWER SUPPLY

-48V DC or 220VAC or 110VAC

WORKING TEMPERATURE

-40 ~ +55˚C

WORKING HUMIDITY

5% ~ 100%

NOISE

Passive cooling, no noise

ZTE patent 35% high efficiency PA will greatly reduce the power consumption

ZXWR R8840


ZXWR R8840 Capability Indices

ZXWR R8840

Macro Outdoor RRUCARRIER SECTOR SUPPORT

4C1S

STANDARD FREQUENCY BAND

2.1GHz

OTHER FREQUENCY BAND

UMTS850, 900

RECEIVE SENSITIVITY

-126.5dBm@1*ANT | -129.2dBm@2*ANT |

-131.9dBm@4*ANT

INTERFACE

2*Fiber (CPRI) | 2*Diversity | 1*ASIG | 2*Feeder

4CS Processing

Multi-bandsupport

Highsensitivity

CPRI Fiber interface to BBU

ZXWR R8840

ZXWR R8840 Highlights Summary

ZXWR R8840 Highlights Summary

• Compact & light

• All aluminum case

• Passive cooling

• No noise

• Easy installation

• 4CS processing

• Multi-band support

• Support transmit diversity

• High efficiency

• Low OPEX

Compact & Light

4 Carriers

Patent HPA Multi-frequency

AC/DC Power

Security

ZXWR R8840

Content


ZXWR BBUB

ZXWR R8840


Success Stories

Networking & Application

Convenient InstallationConvenient Installation

Flexible NetworkingFlexible Networking

Application ScenariosApplication Scenarios





ZXWR BBUB Application Features

ZXWR BBUB: 19 inch standard shelf plug-in design, 3U height, flexible structure 15 kg with full configuration, can be installed on the wall, convenient deployment Support flexible AC/DC power supply, good compatibility Maximum 40Km fiber distance between BBUB and level 1 RRU, decrease feeder loss

and expand coverage

Wall suspension Wall suspension (on the wall bracket)(on the wall bracket)

Wall suspension Wall suspension (against the wall)(against the wall)

19” inch rack 19” inch rack installationinstallation


With 2G Equipment Room － Share 2G Resource

ZXWR BBUB can be deployed in 2G transmission rack, extra space in 2G BTS or directly hung on the wall, which effectively solve the problem that the 2G equipment room space is not enough or the floor can not bear the weight.

ZXWR BBUB can be Installed at the light current well of the residential or office building, or even in the basement, which is very flexible.

BBUB deployed in 2G transmission rack

BBUB deployed in 2G BTSBBUB hung on the wall of

2G equipment room

Smaller installation space requirement, less difficulty for obtaining 3G equipment roomSmaller installation space requirement, less difficulty for obtaining 3G equipment room

Fast, economical and effective network constructionFast, economical and effective network construction

Smaller installation space requirement, less difficulty for obtaining 3G equipment roomSmaller installation space requirement, less difficulty for obtaining 3G equipment room

Fast, economical and effective network constructionFast, economical and effective network construction


Without 2G Equipment Room － Outdoor Integrative Rack Solution

When operators don’t have available equipment rooms and need new outdoor sites:

BBUB can be inserted into integrative rack and together with power and backup power.

Integrative rack can be put on the ground, roof or flat stage and connect RRU with fiber.

Battery

Transmission

Power

ZXWR BBUB

HSPA

HSPA+

IP UTRAN

MBMS

Outdoor integrative rackOutdoor integrative rack

Support build-in transport module, provide SDH 、 microwave interface.

Coverage solution for outdoor and indoor

Supply 220VAC or -48VDC Supply 7 hours standby RRU remote power supply 3

00m

FeaturesFeatures


Fast Network Construction － ZXWR R8840 Installation

On wall installation

• Adapt to any conditions

• Applied to various cases

• Water/dust proof

• -40 ~ 55˚C working temperature

On pole installation

On tower installation

On pillar installation

Advanced Hardware ArchitectureWide Application

Advanced Hardware ArchitectureWide Application










BBUB+R8840 Distributed Networking

ZXWR R8840 Distributed

Networking

RRU collects radio signal

of each cell

BBU centralized

processing

LMT

LMT


Strong RRU Interface Capability, Various Networking Modes

ZXWR BBUB’s RRU interface capability: 6 optical RRU interfaces/shelf Interface bandwidth: 1.2288Gbps or 2.4576Gbps Standard comply: CPRI and OBSAI

Topologies Architecture: Star, Chain, Loop, MixTopologies Architecture: Star, Chain, Loop, Mix

RRU Interface Capability:RRU Interface Capability:

BBU

Star Topology

Chain Topology

Loop Topology

BBU

BBU

Maximum 4 levels cascade

Maximum 40Km fiber transmission distance per level

Maximum 100Km fiber transmission distance with 4 levels cascade

Maximum 12 RRU

ZXWR BBUB+R8840 Networking:



Flexible Networking

Convenient Installation

Application Scenarios

Flexible Networking

Convenient Installation

Application Scenarios


ZXWR BBUB+R8840 Indoor Coverage Scene

ZXWR BBUB, together with ZTE series RRU, can satisfy

different coverage requirements:

In scene 1, 3G and 2G outdoor macro base stations are deployed co-siting deployed. 2G macro sites have spare space for 3G devices. Operators would like to utilize these free spaces.

RRU needs for auxiliary power supply, using multifunctional cabinet to provide -48VDC, and storage battery in the cabinet as auxiliary power supply ; Need for auxiliary power supply: through UPS, 220VAC can be provided. Also UPS can provide about 30 min power storage; No need for auxiliary power supply.


ZXWR BBUB+R8840 Indoor Coverage Scene

In scene 2, operators have sites, but antenna feeder’s lose is over 3dB, using traditional indoor macro base station is not economical. Operators are sensitive to outdoor space and do not want to deploy outdoor macro base stations.

RRU with -48v DC input, need for auxiliary power supply; RRU with 220v AC input, no need for auxiliary power supply


ZXWR BBUB+R8840 Outdoor Coverage Scene

In scene 3, operators have no outdoor site, requiring deploying new

outdoor site, but are sensitive to outdoor space. Outdoor macro base

station is not recommended, BBU and RRU would be taken as a

substitute solution.

Need for auxiliary power supply, -48V DC No need for auxiliary power supply, 220V AC


Requirements of Outdoor Coverage

Definition of Mid-high Traffic Area

Definition of Mid-high Traffic Area

Area CharactersArea Characters

outdoor areas of common urban and dense urban, sceneries, large scale factories

High capacity Complex propagation Difficult to get the site room The main expansion areas

Construction RequirementsConstruction Requirements

Good expansion Reuse of existing site room

Definition of low Traffic Area

Definition of low Traffic Area

Area CharactersArea Characters

suburb, small town, rural areas, highway, roads and railways

Low capacity Difficult to get the associated

equipments Less expansion

Construction RequirementsConstruction Requirements

Wide coverage Very low construction cost Less associated equipments


Flexible Deployments of RRUs － to Meet the Common Coverage of Mid-high Traffic Areas

In mid-high traffic areas th

e RRUs can be flexibly depl

oyed when there is not enou

gh site room:

BBU+ RRU

BBU pool+RRU

Out door construction reduces cost and

rent

High efficiency PA makes smaller Node B

and lower power consumption

MGWMGWMSC MSC ServerServer

BBULarge scale BBU

RRU

RNCRNC RNCRNC

GGSNGGSNSGSNSGSN

RRURRU

RRURRU

RRU

Flexible deployment of RRUs

It is an innovation to flexibly deploy RRUsIt is an innovation to flexibly deploy RRUs

ZXWR serial RRUZXWR serial RRU

ZXWR BBUBZXWR BBUB


BBU plus RRU Structure in Street BTS Solution － Few Associated Equipments Needed

ZXWR BBUBFiber on pole

Street BTS

Outdoor integrated cabinet

The BBU plus RRU structure in street BTS solution can greatly reduce

the network construction cost and speedup network deployment.

ZXWR R8840

The BBU plus RRU solution can be deployed in the urban areas where there are not rooftop platform and site room.

RRU and lightning proof box are installed in the pole. Beautify antenna and lightning rod on top of the pole.

BBU connects with RRU by fibers. Outdoor integrated cabinet can accept B

BU, power supply, batteries and transmission equipment.


Distributed Coverage of BBUB plus RRU In Suburb

BBU is put in the center of small town. RRU can be put in the residential areas or small markets. BBU and RRU are connected by fiber on pole.

BBU can be embedded in the integrated cabinet. Several RRUs stack together to form BBU pool.

The distance between BBU and RRU is up to 40Km. The topology of BBU and RRU networks can use link or circle style.

Center BBUCenter BBU

Market 1 RRUMarket 1 RRU

Market 2 RRUMarket 2 RRU

Market 3 RRUMarket 3 RRUMarket 4 RRUMarket 4 RRU


ZXWR BBUB for Indoor Coverage

To the new building or building without good 2G indoor distribution system and still

using outdoor macro Node B for indoor coverage, BBU+RRU is a convenient and

economic indoor coverage solution.

2G BTS

Micro RRU

ZXWR BBUBZXWR BBUB

ZXWR BBUB and RRU are connected with fiber and transmit digital IQ signal, which avoids the influence to coverage quality caused by analog signal in traditional indoor distribution system.

Flexible deployment: can use Pico RRU for new indoor coverage system, and can share indoor distribution system with 2G.

Convenient network upgrade and expansion: only need to upgrade and expand BBUB

FeaturesFeatures


Flexible Coverage Solution with BBU plus RRU

High Capacity Smooth Expansion Wide Coverage High Stability

+

BBU+RRU

+

BBU+RRU

Medium Capacity Save Equipment room Flexible Deployment High Reliability

+

BBU+RRU

Wide Coverage

Flexible Deployment

High Reliability

Den

se U

rban

Den

se U

rban

Urb

an/S

ub

urb

Urb

an/S

ub

urb

Ru

ral

Ru

ral

Indoor CoverageIndoor Coverage

+

R8905

High capacity Easy to upgrade Small size No noise Easy to install


Content


ZXWR BBUB

ZXWR R8840


Success Stories

ZTE WCDMA in Brazil - Fast Network Construction with Low TCO

Brazil Telecom（ BrT） Introduction

Jan. ,2008 , combining with Oi ,became the biggest operator in Brazil

GSM equipments provided by Ericsson,more the 20,000,000 lines

Highlights of network construction

Fast deploying with BBU+RRU

Providing HSPA & MBMS

Completed 85 sites in the first month

Recognized by BrT because of Low TCO solution

Joined with the Ericsson’s equipments smoothly

Connection with Fiber

RRUBBU

Success Stories

ZTE WCDMA in Rumania - from CDMA to WCDMA

Zapp –One of the biggest four operators in Rumania

Providing the voice , fixed , mobile board band services , WLL etc.

cdma 450MHz and EV-DO

Needing the new services to absorb the subscribers

Supporting HSDPA， HSUPA , 590 sites

WCDMA/CDMA co-site, low network construction cost

BBU+RRU , high usage ratio , low consumption

Easy to upgrade and expand, high reliability

W network features

Operator introduction Zapp is well advanced in its preparations for the 2100MHz network launch, and the signing of this contract will start immediately the deployment of the network. The first services of this type from Zapp will be launched in Romania, in 19 major cities, by end of June 2008, although the target is to have them available before this date.

-- Journalist report

Success Stories

Exercise

what is the distributed base station.

pls write down the boards of BBUB.

what is the main function of BP,CCI, ETTB and FNB boar

d.

pls describe the main function of RTR ,DFL,PA board.

8-Zxwr Bbub+r8840 System- 66

Documents

application

distributed

implementing

r8840 system

rs232rs485

bbub system

ethernet switching

equipment