eNodeB LTE FDD solution Training.pdf

(1)

www.huawei.com

eNodeB LTE FDD

(2)

1. System Overview

2. System Structure

(3)

eNodeB in LTE/SAE Network



E-UTRAN: Evolved UMTS Terrestrial Radio Access Network



EPC: Evolved Packet Core network

(4)

Huawei eNodeB Base Station Description

Distributed eNodeB

DBS3900

Indoor eNodeB

BTS3900

Outdoor eNodeB

BTS3900A



_{Huawei Fourth Generation Base Station}



_{Three standardized modules shared by all eNodeB portfolio}

Micro eNodeB

BBU RFU

Multi-modal BBU

2U 19-in rack mount design

Simultaneous 2G/3G/4G

operation

Multi-modal RRU 60W/4C

CDMA/WCDMA/LTE

GSM/UMTS/LTE

WiMAX

RRU

Future release

(5)

eNodeB Modules

Baseband Unit

BBU3900

RF Unit

RFU/RRU

Cabinet

CPRI

(6)

Capacity Specification

Item

Specification

Maximum number of cells

(DBS3900)



4 x 2 MIMO: 6 cells (1.4 MHz/3 MHz/5 MHz/10 MHz/15 MHz/20 MHz)



2 x 2 MIMO: 12 cells (1.4 MHz/3 MHz/5 MHz/10 MHz/15 MHz/20 MHz)

Maximum throughput per

cell (20 MHz)



Downlink rate at the Media Access Control (MAC) layer: 150 Mbit/s



Uplink rate at the MAC layer: 70 Mbit/s

Maximum throughput per

eNodeB



Downlink: 450 Mbit/s



Uplink: 300 Mbit/s

Maximum number of UEs in

RRC_CONNECTED mode in

an eNodeB



One LBBP configured (bandwidth of 1.4 MHz): 1008



One LBBP configured (bandwidth of 3 MHz/5 MHz/10 MHz/15 MHz/20

MHz): 1800



More than one LBBP configured (bandwidth of 1.4 MHz): 3024



More than one LBBP configured (bandwidth of 3 MHz/5 MHz/10

MHz/15 MHz/20 MHz): 5400

Maximum number of

concurrent Data Radio

Bearers (DRBs) per UE

8

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1. System Overview

2. System Structure

3. Auxiliary Devices

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2. System Structure

2.1 Base Band Unit(BBU) Introduction

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BBU3900



Dimensions: 86mm x 442mm x 310mm (H x W x D)



Power consumption: 132 W (3 x 10 MHz) ~300 W (3 x 20 MHz)

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Physical Modules of the BBU3900



Slots for BBU3900 boards and modules

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LMPT (The LTE Main Processing &

Transmission Unit )



Mandatory, Maximum 2 boards, hold in slot 7(default) or 6



Function:



Performs configuration management, equipment management,

performance monitoring, signaling processing, and radio resource

management

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LBBP (The LTE Baseband Processing Unit)



Mandatory, Maximum 3 boards, hold in slot 1, 2 or 3 (default)



Function:



Processes uplink and downlink baseband signals

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Specification of LBBP

Board

Number of Cell

Bandwidth of Cell

ANT Configuration

LBBPc

3 15M/20M

2T2R

6 5M/10M

2T2R

3 5M/10M

4T4R

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UPEU (The Universal Power and

Environment interface Unit)



Mandatory, Maximum 2 modules, hold in slot 4 (default) and

slot 5



Functions:



Converts -48 V DC or +24 V DC power into +12 V DC power



Provides ports for transmission of two RS485 signals and eight dry

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Clock Synchronization Modes



GPS Clock



If an eNodeB is synchronized with the GPS clock, the eNodeB obtains clock

synchronization signals from the GPS through the USCU. In this case, both

frequency synchronization and time synchronization are applicable



IEEE1588 V2 Clock



IEEE1588 defines the Precision Time Protocol (PTP), which targets precise

synchronization of distributed and independent clocks in measurement and control

systems, with the precision to microseconds. IEEE1588 V2 supports frequency

synchronization and time synchronization



In LTE applications, high-accuracy frequency synchronization and time

synchronization can be achieved between clock servers and eNodeBs by IEEE1588

V2 synchronization

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Clock Synchronization Modes (Cont.)



Clock over IP



Clock over IP is a Huawei proprietary frequency synchronization

technology, which is based on an IP clock server/client architecture. It

supports only frequency synchronization



Free Running



The clock enters the free running mode if no reference clock is available

after the oscillator is warmed up or if the clock has lost its reference input

for a period of time longer than the timer of the holdover mode

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2. System Structure

2.1 Base Band Unit(BBU) Introduction

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RF Unit Category



There are two kinds of RF units in LTE BTS, RFU and RRU



The RFU is type of radio frequency unit adopted in BTS3900,

BTS3900A, BTS3900L



The RRU is a type of radio remote unit adopted in DBS3900

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FDD RF Unit Types

Types

RRU Name

TX/RX

FRE. Band

Output

Power

G/U/L

eRAN

version

RRU

RRU3201

2T2R

2.6G

2*40W

L

eRAN1.0/2.0

RRU3221

2T2R

2.6G

2*40W

L

eRAN2.1

RRU3908

2T2R

1.8G

900M

2*30W

2*40W

GL/UL/GU

eRAN2.0

RRU3220

2T2R

800M

2*40W

L

eRAN2.0

RRU3222

2T2R

800M

2*40W

L

eRAN2.1

RFU

LRFU

2T2R

2.6G/AWS

2*40W

L

eRAN2.0

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LRFU



LTE Radio Frequency Units (LRFUs) work in Frequency

Division Duplex (FDD) mode



The LRFU processes uplink and downlink services and

controls and monitors internal boards or modules.



LRFU is RF unit which adopted by BTS3900,

BTS3900A, BTS3900L

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MRFU



One Multi-Mode Radio Frequency Unit (MRFU)

supports a maximum of six carriers, which support

GSM/UMTS/LTE



The MRFU processes uplink and downlink services

and controls and monitors internal boards or

modules.



MRFU is RF unit which adopted by BTS3900,

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Specifications of RRU3221

Page21

Item

Specification

Frequency

Band/

Bandwidth

(FDD)

Frequency

band

RX band

(MHz)

TX band

(MHz)

Supported bandwidth

(MHz)

2.6 GHz

(Band 7)

2500 to

2570

2620 to

2690

5, 10, 15, or 20

Dimensions

(H x W x D)

485 mm (19.09 in.) x 300 mm (11.22 in.) x 170 mm (6.7 in.)

(23.5 L, with a housing)

Weight

Not greater than 19 kg (41.9 lb) (with a housing)

Maximum

output power

2 × 40 W

Power

consumption

370 W (2X40 100% Load)

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1. System Overview

2. System Structure

(25)

Hardware Quantities in Typical

Configurations

Configuration

Numbers

of LMPT

Numbers of

LBBP

Number of

RRUs/RFUs

Numbers of

Antennas

3 x 15 MHz/20

MHz, 2T2R

1 LBBPc: 1

3 (6, if MRFUs are

required)

3 (dual-polarized

antennas)

6 x 5 MHz/10

MHz, 2T2R

1 LBBPc: 1

6 6 (dual-polarized

antennas)

3 x 5 MHz/10

MHz, 4T4R

1 LBBPc: 1

6 3 (antennas with

four ports)

1 x 15 MHz/20

1 _LBBPc:1

₂

1 (antennas with

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(27)

(28)

TMN Topologies – Scenario A

(29)

(30)

TMN Topologies – Scenario C

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eNodeB LTE FDD solution Training.pdf

eNodeB LTE FDD

Contents

1. System Overview

2. System Structure

eNodeB in LTE/SAE Network

E-UTRAN: Evolved UMTS Terrestrial Radio Access Network

EPC: Evolved Packet Core network

Huawei eNodeB Base Station Description

Distributed eNodeB

DBS3900

Indoor eNodeB

BTS3900

Outdoor eNodeB

BTS3900A



Huawei Fourth Generation Base Station



Three standardized modules shared by all eNodeB portfolio

Micro eNodeB

Multi-modal BBU

2U 19-in rack mount design

Simultaneous 2G/3G/4G

operation

Multi-modal RRU 60W/4C

CDMA/WCDMA/LTE

GSM/UMTS/LTE

WiMAX

Future release

eNodeB Modules

Baseband Unit

BBU3900

RF Unit

RFU/RRU

Cabinet

CPRI

Capacity Specification

Item

Specification

Maximum number of cells

(DBS3900)

4 x 2 MIMO: 6 cells (1.4 MHz/3 MHz/5 MHz/10 MHz/15 MHz/20 MHz)

2 x 2 MIMO: 12 cells (1.4 MHz/3 MHz/5 MHz/10 MHz/15 MHz/20 MHz)

Maximum throughput per

cell (20 MHz)

Downlink rate at the Media Access Control (MAC) layer: 150 Mbit/s

Uplink rate at the MAC layer: 70 Mbit/s

Maximum throughput per

eNodeB

Downlink: 450 Mbit/s

Uplink: 300 Mbit/s

Maximum number of UEs in

RRC_CONNECTED mode in

an eNodeB

One LBBP configured (bandwidth of 1.4 MHz): 1008

One LBBP configured (bandwidth of 3 MHz/5 MHz/10 MHz/15 MHz/20

MHz): 1800

More than one LBBP configured (bandwidth of 1.4 MHz): 3024

More than one LBBP configured (bandwidth of 3 MHz/5 MHz/10

MHz/15 MHz/20 MHz): 5400

Maximum number of

concurrent Data Radio

Bearers (DRBs) per UE

8

Contents

1. System Overview

2. System Structure

3. Auxiliary Devices

Contents

2. System Structure

2.1 Base Band Unit(BBU) Introduction

BBU3900

Dimensions: 86mm x 442mm x 310mm (H x W x D)

Power consumption: 132 W (3 x 10 MHz) ~300 W (3 x 20 MHz)

Physical Modules of the BBU3900

Slots for BBU3900 boards and modules

LMPT (The LTE Main Processing &

Transmission Unit )

Mandatory, Maximum 2 boards, hold in slot 7(default) or 6

Function:

_{Huawei Fourth Generation Base Station}

_{Three standardized modules shared by all eNodeB portfolio}