Chap 3. e nb hardware description stc_ed01_0901

Jinyoung Paek

Distribution

EnglishED01

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Contents

Main Function of Unit

Specifications

Block Diagram

Digital Unit – UAMA, L9CA

RF Unit – L8HU

Cooling system

Clock Distribution

Alarm & Reset Structure

Interface & Configuration

RRH Installation

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Main Function of Unit

Digital Unit (DU)

Subscriber data traffic processing

Call processing, resource allocation and OAM

GTP, PDCP, OAM, RRC, RRM processing

Reception of the GPS signal and creation and supply of the clock

Fault diagnosis and alarm collection and control

Fast Ethernet/Gigabit Ethernet interface to backhaul

RLC, MAC/PHY processing

OFDMA/SC-FDMA channel processing

RF Unit (RU)

Up conversion/down conversion of frequency

High-power amplification of RF transmission signal

Suppression of out-of-band spurious wave emitted from RF Rx/Tx signal

Gain control of RF Rx/Tx signal

Rx/Tx RF signal from/to an antenna

Low noise amplification of band-pass filtered RF Rx signal

GTP : GPRS Tunneling Protocol

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Specifications(1/2)

Digital Unit spec.

Category Specification

Radio Technology TD-LTE Rel. 8/9

Channel Bandwidth 20MHz

Capacity Max. 3 channel cards / DU

Backhaul InterfaceGigabit Ethernet : 4 ports

(RJ-45 2 ports + SFP 2port)

Channel Card Capacity 1Carrier 3Sector(4x4) per 1 channel card

Input voltage -48V DC

Size(mm) (W x D x H) 434 x 385 x 88 (19” rack mountable)

Weight(kg) Under 12 kg

Power Consumption About 200 W (1Carrier/3Sector)

Cooling Forced Air Cooling

Temperature 0°C ~50°C

Humidity 10~90%

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Specifications(2/2)

RF Unit spec.

Category Specification

Capacity (max.) 4Tx4Rx, 1Carrier/1Sector (20MHz)

Operating Frequency 2300~2400 MHz

Channel Bandwidth 20MHz

RF Output Power (max.) 10W/path (40W/Unit)

Cooling Natural convection

Antenna port N-type female

Optic port LC/APC connector

Operating Temp. -40°C ~ 50°C

Humidity 5% ~ 95%

Input Power -48V DC

Power Consumption < 260W

Size354mm (W) × 112mm (D) × 504mm (H)Wall or poll mountable

Weight Under 20Kg

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Block Diagram

Rectifier control (RS-485/FE)

Power (-48 VDC)

UAMA

Analog 10 MHz

1PPS

UDA (9Rx/2TX)

UDE (FE)

Rectifier

FE/GE

Alarm/Control

CPRI Interface (Optic)

Clock

Backhaul

Data Traffic + Alarm/Control (Ethernet)

Index

L8HU

L8HU

L8HU

L9CA

EPC

2.5 Gbps CPRI Interface

GPSUADU

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Digital Unit - UADU (1/4)

UADU Description

Consists of UAMA and L9CA

Supports the optic CPRI

Item Quantity Description

UADU

UAMA 1

Universal platform type A Management board Assembly

- Main processor in the system

- Resource allocation/operation and maintenance

- Alarm collection and report to LSM

- Backhaul support (GE/FE)

- UADU FAN alarm handling

- Rectifier interface Connector

- Provides User Defined Ethernet (UDE) and User Defined

Alarm (UDA)

- GPS ANT Input

L9CA Max. 3

LTE eNB Channel card board Assembly

- Call processing and resource allocation

- OFDMA/SC-FDMA Channel Processing

- Interface between the L8HU and optic CPRI

- Support for optic interface with CPRI RRH (E/O, O/E

conversion in CPRI Mux)

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Interface

Digital Unit - UADU (2/4)

FANM

ACT GPS RST DBG

UDA BH0 BH1 UDE0 UDE1 EDBG REC BH2 BH3

1PPS A10M GPS

PWR

RTN PWR/ALM

L0 L1 L2 L3 L4 L5 ACT RST DBG0 DBG1

A/F

-48 V EDBG

Unit Interface Description

PWR RTN/-48 V Power Input (RTN/-48 VDC)

FANM PWR/ALM Fan Module

UADU’s cooling fan

Dust filter A/F Dust filter

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Digital Unit – UAMA (3/4)

Interface

ACT GPS RST DBG

UDA BH0 BH1 UDE0 UDE1 EDBG REC BH2 BH3 1PPS A10M GPS

Unit Interface Description

UAMA ACT CPU Active LED

GPS UCCM Status LED

RST Reset Switch (CPU Chip Reset)

DBG SW Debug (UART, RS-232)

UDA User Defined Alarm (Rx: 9 port, Tx: 2 port), Mini Champ

BH0, BH1 Copper Backhaul (100/1000 Base-T), RJ-45

UDE0, UDE1 User Defined Ethernet (100 Base-T), RJ-45

EDBG SW Debug (100 Base-T), RJ-45

REC Rectifier, RS-485

BH2, BH3 1000 Base-LX/SX, SFP

1PPS Test Port 1PPS Output (from UCCM), SMA

A10M Test Port Analog 10 M Output (from UCCM), SMA

GPS GPS ANT Input (to UCCM), SMA

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Digital Unit – L9CA (4/4)

Interface

L0 L1 L2 L3 L4 L5 EDBGACT RST DBG0 DBG1

Unit Interface Description

L9CA ACT L9CA ACT LED

RST System reset

DBG0, DBG1 UART DSP Debug, USB

L0~5 L8HU IF (CPRI 4.0), Optic

EDBG SW Debug (UART, RS-232)

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RF Unit – L8HU(1/3)

RF Unit Description

The RRH is that integrates the transceiver, power amplifier, and filters in a single module.

Category Specification

Capacity (max.) 4Tx4Rx, 1Carrier/1Sector (20MHz)

Operating Frequency 2300 ~ 2400MHz

Channel Bandwidth 20MHz

RF Output Power (max.) 10W/path, 40W/unit

Cooling Natural convection

Operating Temp. -40°C ~ 50°C

Input Power -48VDC

Size354mm (W) × 112mm (D) ×

504mm (H)

Weight Under 20kg

Installation Wall /pole

4T4R RRH

RRH : Remote Radio Head

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RF Unit – L8HU(2/3)

Power

Port

Debug

Access PortOptic

Port

RF_ANT

Port_3

RF_ANT

Port_2

RF_ANT

Port_1

RF_ANT

Port_0

RET

Port

[Bottom View]

[Front View] [Right View]

[Top View]

[Left View]

143.5

354

370

504

520

112

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RF Unit – L8HU(3/3)

-48 V INOPTIC RET DEBUG

ANT_3 ANT_2 ANT_1 ANT_0

Interface Description

-48 V IN Power Input (-48 VDC)

OPTIC DADU interface, ODCP (LC type)

RET Remote Electrical Tilt (AISG 2.0)

DEBUG S/W debug, Mini USB

ANT_0~3 4Tx/4Rx, N-type female

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Cooling System

UADU

The UADU maintains the inside temperature of the shelf at an appropriate range using a set of

system cooling fans (FANM)

L8HU

The L8HU is designed with a natural cooling system that supports an outdoor environment with

no additional fan or heater

※ FANM is designed to control RPM automatically according to temperature..

Dust Filter is only included when inserting UADU at Indoor Open Rack

FANM Dust Filter

UADU : Universal platform type A Digital Unit

L8HU : LTE eNB remote radio Head Unit

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Synchronization

GPS synchronization

The UCCM receives the synchronization signals from the GPS and generates clocks and

distributes them within the UADU

Clock Generation &

Distribution UCCM

Control

GPS

UADUSYS(System Clock 30.72MHz)

SFN(System Frame Number)

PP2S(Even Clock)

Digital 10MHz

PP2X(Even Clock)

Analog 10MHz1PPS

Test Equipment

UCCM : Universal Core Clock Module

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Alarm and Reset Structure

Alarm and Reset

When an environmental fault occurs or H/W is mounted or unmounted, it is reported

using an alarm signal

All alarms are collected in the DU and reported to the management system, LSM

UAMA

L9CA

GPS Module (in UAMA)

L8HU #2

L8HU #0

: Reset

: Alarm

: Remote Pattern Reset

LSMC

B A

A

B

C

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Interface & Configuration(1/2)

RRH Cable

(Optic Cable-2.5Gbps)

Copper

Back-Haul

(2EA)

UDE

(2EA)

SW debugOptic

Back-haul

(2EA)

UDA

1pps

Analog

10MHz

Rectifier IF

GPS Antenna

SW debug

LED

(GPS)

LED

(CPU) Rectifier

Power cable

SW debug

(2EA)

Board

Reset

CPU State

LED

System

Reset

SW debug

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Interface & Configuration(2/2)

1 DU + 3 RRH Configuration

Supports 20MHz 4T4R 1carrier

3sectors

Two 2.5Gbps CPRI cables are

required for 20MHz 4T4R

configuration

g - sector(4T4R TD-LTE)a - sector

(4T4R TD-LTE)

b - sector(4T4R TD-LTE)

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RRH Installation – 1Sector Pole Mount

wall

RRU

RRU

RectifierRectifier

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RRH Installation – 1Sector Floor Mount

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RRH Installation – 1Sector Wall Mount

Wall

RRU

Rectifier

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RRH Installation – 3Sector Pole Mount

wall

RRU

RRU

RRU

RRU

RRU

RRU

RRU RRU

RRU

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RRH Installation – 3Sector Floor Mount

RRU

RRU

RRURRU

RRU

RRU

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RRH Installation – 3Sector Wall Mount

RRU

RRU

RRU

RRU

RRU

RRU