49
LTE_FDD_eNB_B_03 eNodeB Hardware Basic Principle Course Objects·Be familiar with the ZXSDR Base Station software and hardware structure ·Know the ZXSDR Base Station boards function ·Know the ZXSDR Base Station cables structure ·Know the ZXSDR Base Station networking and dimensioning

eNodeB Hardware Basic Principle 49

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LTE_FDD_eNB_B_03 eNodeB Hardware Basic Principle

Course Objects:

·Be familiar with the ZXSDR Base Station software and hardware

structure

·Know the ZXSDR Base Station boards function

·Know the ZXSDR Base Station cables structure

·Know the ZXSDR Base Station networking and dimensioning

Contents

1 Overview.....................................................................................................................................................1

1.1 ZTE Distributed Base Station Solution.............................................................................................1

1.2 Product Location in LTE Wireless Network.....................................................................................3

1.3 Product Overall Appearance..............................................................................................................4

1.4 Product Characteristics......................................................................................................................5

1.5 Functions...........................................................................................................................................7

1.6 Technical Indices...............................................................................................................................8

1.6.1 ZXSDR B8200 L200 Technical Indices.................................................................................8

1.6.2 ZXSDR R8882 L268 Technical Specifications....................................................................11

2 System Structure......................................................................................................................................15

2.1 Hardware Structure..........................................................................................................................15

2.2 Software Structure...........................................................................................................................16

3 Boards.......................................................................................................................................................19

3.1 Overview.........................................................................................................................................19

3.2 CC Board.........................................................................................................................................19

3.2.1 CC Board Function...............................................................................................................19

3.2.2 CC Board Front Panel..........................................................................................................20

3.2.3 CC Board Panel Indicators...................................................................................................21

3.2.4 CC Board Panel Interface.....................................................................................................22

3.2.5 CC Board Button..................................................................................................................23

3.3 BPL Board.......................................................................................................................................23

3.3.1 BPL Board Function.............................................................................................................23

3.3.2 BPL Board Front Panel........................................................................................................23

i

3.3.3 BPL Board Panel Indicators.................................................................................................23

3.3.4 BPL Panel Interfaces............................................................................................................24

3.3.5 BPL Board Button................................................................................................................25

3.4 SA Board.........................................................................................................................................25

3.4.1 SA Board Function...............................................................................................................25

3.4.2 SA Board Front Panel...........................................................................................................25

3.4.3 SA Board Panel Indicators...................................................................................................25

3.4.4 SA Board Panel Interfaces....................................................................................................26

3.5 PM Board........................................................................................................................................26

3.5.1 PM Board Function..............................................................................................................26

3.5.2 PM Board Front Panel..........................................................................................................26

3.5.3 PM Board Panel Indicators...................................................................................................27

3.5.4 PM Board Panel Interfaces...................................................................................................27

3.5.5 PM Board Button..................................................................................................................27

3.6 FAN Module...................................................................................................................................28

3.6.1 FAN Module Function.........................................................................................................28

3.6.2 FAN Module Front Panel.....................................................................................................28

3.6.3 FAN Module Panel Indicators..............................................................................................28

4 Cables........................................................................................................................................................31

4.1 ZXSDR B8200 L200 Cables...........................................................................................................31

4.1.1 DC Power Cable...................................................................................................................31

4.1.2 PE Cable...............................................................................................................................31

4.1.3 S1/X2 Cables........................................................................................................................32

4.1.4 RF Cable...............................................................................................................................33

4.1.5 Dry Contact Cable................................................................................................................34

4.1.6 GPS Jumper..........................................................................................................................35

ii

4.2 ZXSDR R8882 L268 Cables...........................................................................................................35

4.2.1 DC Power Input Cable..........................................................................................................35

4.2.2 Protective Grounding Cable.................................................................................................36

4.2.3 Fiber Cable for Connecting a BBU......................................................................................36

4.2.4 Fiber Cable for Cascading RRUs.........................................................................................36

4.2.5 External Monitoring Cable...................................................................................................37

4.2.6 AISG Control Cable.............................................................................................................37

4.2.7 RF Jumpers...........................................................................................................................38

5 Networking................................................................................................................................................41

5.1 Product Networking Mode..............................................................................................................41

5.1.1 Star Networking...................................................................................................................41

5.1.2 Cascade Networking.............................................................................................................42

5.2 Typical Board Configuration...........................................................................................................43

iii

1 Overview

Highlights

ZTE Distributed Base Station Solution

Product Location in LTE Wireless Network

Product Overall Appearance

Product Characteristics

Product Functions

1.1 ZTE Distributed Base Station Solution

To supply the customer with more competitive communication equipment and solution

in the market, ZTE develops and promotes ZTE SDR eBBU (baseband unit) and eRRU

(remote RF unit) distributed base station solution timely, which jointly perform LTE

base station service.

1

Figure 1.1-1 ZTE Distributed Base Station Solution

ZTE's LTE eBBU+eRRU distributed base station solution has the following

predominance:

1. Saving labor cost and engineering cost for networking.

eBBU+eRRU distributed base station equipment is small in size, light in weight,

and easy for transportation and engineering construction.

2. Fast networking, also saving the fees of renting equipment room.

eBBU+eRRU distributed base station is applicable to various sites, such as

mounted on the steel tower, on the building top, or on the wall, etc. It's more

flexible in selecting installation site, and not restricted by the space of the

equipment room. It can help the operators to deploy network rapidly, and exert

the predominance of Time-To-Market. It can also save the fees of renting

equipment room, and the network operation cost.

3. Convenient in upgrade and capacity expansion; saving the initial stage cost of

the network.

2

Chapter 3 Boards

eRRU can be mounted as close to the antenna as possible, to save the cost of

feed cable and decrease the wastage of feed cable. It also can enhance the output

power of eRRU top and increase the coverage.

4. Low power consumption, power-saving.

Compared with traditional base station, eBBU+eRRU distributed base station

has lower power consumption, which can greatly reduce the investment and cost

on electric power, and thus save the network operation cost.

5. Distributed networking, making good use of operators' network resources

supporting eBBU+eRRU distributed networking; supporting the star or chain

networking mode between eBBU and eRRU.

6. Adopting more perspective generalized base station platform.

eBBU adopts the platform designed for the future B3G and 4G. One hardware

platform can realize different standard modes, and several standard modes can

coexist in one base station. In this way, the operators' management can be

simplified, and several base stations to be invested can be integrated into one

base station (multimode base station). The operators can select the evolution

direction of the future network more flexibly, and the end users will also feel the

transparency of the network and smooth evolution.

1.2 Product Location in LTE Wireless Network

LTE is a new-generation wireless network technology based on OFDM technology.

The main aims of formulating LTE standards are:

To provide higher user data rate, enhance system capacity, decrease delay and

operation cost.

To realize the flexible configuration and implementation of the mobility of a present or

new access technology based on IP network.

LTE has optimized the traditional 3G network architecture, and adopts flat network

structure. LTE system consists of EPC and eNodeB. EPC is responsible for the core

network. EPC's signaling processing part is called as MME, and the data processing

part

is called as SAE Gateway (S-GW). eNodeB is responsible for the access network,

3

LTE_FDD_eNB_E_10 LTE Overview

being also called E-UTRAN. eNodeB and EPC are connected via S1 interface; eNodeB

and other eNodeBs are connected via X2 interface.

ZXSDR B8200 L200 realizes the function of eNodeB's baseband unit, and forms a

complete eNodeB with the RF unit (eRRU) via the baseband-RF interface. ZXSDR

B8200

L200 and EPC are connected via S1 interface; and are connected with other eNodeBs

via X2 interface.

Figure 1.2-2 Product Location In LTE Network

1.3 Product Overall Appearance

ZXSDR B8200 L200 overall appearance is shown in below.

4

Chapter 3 Boards

Figure 1.3-3 ZXSDR B8200 Overall Appearance

ZXSDR R8882 L268 overall appearance is shown in below.

Figure 1.3-4 ZXSDR R8882 L268 Appearance

1.4 Product Characteristics

ZXSDR B8200 L200 characteristics are as follow:

Multi-Mode Baseband Unit

ZXSDR B8200 L200 can support all kinds of wireless access technologies

simultaneously, including GSM, UMTS, CDMA, WiMAX and LTE, which share the

common control function and transmission totally. It fully satisfies operators’need of

smooth migration from GSM/UMTS with BP board replaced only.

All-IP Architecture to IP RAN

ZXSDR B8200 L200 adopts IP switching, and provides GE/FE external interfaces.

Large Capacity

5

LTE_FDD_eNB_E_10 LTE Overview

ZXSDR B8200 L200 supports different configurations.

In typical configuration,ZXSDR B8200 L200 supports 200 Mbps DL + 75 Mbps UL

(three 20 MHz cells in MIMO 2x2).

ZXSDR B8200 L200 also supports larger capacity with more BPL baseband boards:

600 Mbps DL + 225 Mbps UL(six 20 MHz cells in MIMO 2x2).

600 Mbps DL + 300 Mbps UL(three BPL boards in MIMO 4x4).

ZXSDR B8200 L200 is hardware readiness to support MIMO 4x4 without hardware

changing. In first GA version, BPL supports MIMO 4x4 in test mode.

According to the application scenario, ZXSDR B8200 L200 can support

GSM/UMTS/LTE multi-mode with respective baseband processing boards.

Baseband Pooling

ZXSDR B8200 L200 supports baseband resource pooling function based on carriers.

When FS and two BPLs or three BPLs are configured, one carrier can be flexibly

mapped to any BPL board. But at the beginning of LTE network deployment, ZTE

recommends only one BPL is configured in order to reduce the operator‘s CAPEX

investment.

Flexible Networking

ZXSDR B8200 L200 provides GE/FE interfaces and IP networking. It supports eRRU

in different networking modes, like star and chain networking to satisfy the

requirements of operators in different environments and under different transmission

conditions.

Compact Design, Easy Deployment

ZXSDR B8200 L200 adopts standard MicroTCA platform, with 2U in height and 19

inches in width, and can be easily installed into a standard 19 inches rack. It can also be

mounted on the wall with a minimal space requirement reducing OPEX.

The features of the ZXSDR R8882 are as follows:

· lMultiple radio access modes

The ZXSDR R8882 supports single mode, dual mode, or hybrid mode, including

6

Chapter 3 Boards

GSM, UMTS, CDMA, and LTE.

· Distributed architecture

BBUs and RRUs constitute distributed BTS systems, providing flexible office

deployment.

· Smooth evolution

Through software upgrade, the ZXSDR R8882 can be smoothly evolved to

HSPA or LTE, saving the investment of the telecom operator to the maximum.

· Flexible configuration and networking

· Advanced internal structure

Between internal boards and modules, blind interconnection and hard link

interconnection are used.

· Energy saving and environment-friendly design

Energy-saving and environment-friendly due to multi-carrier power amplifiers,

and advanced Doherty and Digital Pre-Distortion (DPD) linear power

amplification technologies.

· Easy installation and maintenance

Easy installation and maintenance due to compact size and light weight.

1.5 Functions

ZXSDR B8200 L200 accomplishes the following basic functions with Uu/S1/X2 and

O&M interfaces:

· Channel coding and decoding

· Channel multiplexing and de-multiplexing

· Baseband resource pooling function

· Measurement and report

· Power control

· Spatial multiplexing, transmit diversity and receive diversity

· Synchronization

7

LTE_FDD_eNB_E_10 LTE Overview

· Frequency hopping

· Operation and Maintenance

· DTX

R8882 is the remote radio unit of distributed base station. The signal is transmitted or

received through R8882 to/from base band processing unit for further processing via

standard CPRI interface. The product basic functions are listed below:

· Supports the configuration of 5 MHz, 10 MHz, 15 MHz and 20 MHz scalable

bandwidth.

· Supports 1730 MHz~1785 MHz(uplink)/1825 MHz~1880 MHz(downlink)

· Supports 2x2 MIMO on downlink.

· Supports QPSK,16-QAM,64-QAM on downlink, QPSK and 16–QAM on

uplink.

· Supports transmission and receive power detection.

· Supports overload power protection for power amplifier.

· Supports power amplifier switching on/off function.

· R8882 software failure will not affect the running of eBBU and other R8882s

which are connected to it.

· Supports field strength scanning, temperature query, VSWR query, dry contact,

hardware/software resetting.

1.6 Technical Indices

1.6.1 ZXSDR B8200 L200 Technical Indices

1.6.1.1 Physical Indices

Dimension:88.4 mm x 482.6 mm x 197 mm (HxWxD).

The weight of ZXSDR B8200 L200 depends on baseband configuration. The bellow

table describes the state of typical configuration. The weight of ZXSDR B8200 L200 is

less than 7.5 Kg.

8

Chapter 3 Boards

Table 1.6-1 Product Weight

Item Weight (Kg) LTE Typical Configuration

Rack 3 1

PM 0.5 1

SA 0.25 1

FS 0.5 0

BPL 0.5 1

CC 0.5 1

FAN 0.5 1

Total weight 5.25 6

1.6.1.2 Capacity

One BPL can support 1200 RRC connections, and the throughput of BPL is 200

Mbps(DL)/75 Mbps(UL).

1.6.1.3 Power Supply

The power supply requirement to ensure the normal operation of the ZXSDR B8200

L200 is -48V DC (voltage range: - 57V ~ - 40V).

1.6.1.4 Power Consumption

The power consumption depends on traffic load, board configuration and ambient

temperature.

Table 1.6-2 Typical Power Consumption

Item Typical configuration

PM 1 10

SA 1 5

FAN 1 30

BPL 1 55

CC 1

1.6.1.5 Grounding Index

The grounding resistance of the equipment room where the ZXSDR B8200 L200 is

installed should be equal to or less than 5 Ω. In the areas where the annual lightening

days are less than twenty days, the grounding resistance can be less than 10 Ω.

1.6.1.6 Working Environment Indices

The working environment indices are illustrated in the table.

9

LTE_FDD_eNB_E_10 LTE Overview

Table 1.6-3 Product Working Environment Indices

Item Requirement

Temperature Long-term -15~ +50 ℃

Short-term -25 ~ +55 ℃

Relative Humidity Long-term 5% ~ 95%

Short-term 5% ~ 100%

1.6.1.7 Interface Indices

ZXSDR B8200 L200 interface indices are shown in the table.

Table 1.6-4 Product Interface Indices

Item Interface Connector Type

BPL 3x optical interfaces SFP (LC)

CC

1xGE, 2xFE 2 RJ45 for Electrical and one SFP (LC)

for optical

1xEXT RS485 can be used to connect with

other

external receiver

1xGPS SMA

FS 6x optical interfaces SFP(LC)

1.6.1.8 Reliability Indices

MTBF:≥233000 hours

MTTR:30 minutes

Availability:99.999785%

Down duration:≤1.128 min/year

1.6.1.9 Electromagnetic Compatibility Indices

ZXSDR B8200 L200 electromagnetic compatibility indices are shown in the table.

Table 1.6-5 Product Electromagnetic Compatibility Indices

Item Requirement

Anti-static protection Capable of protecting against the contact discharge

of ±6000 V, Air discharge of ±8000 V

Surge anti-interference ±2000 V between lines and the ground

10

Chapter 3 Boards

1.6.2 ZXSDR R8882 L268 Technical Specifications

1.6.2.1 Physical Indices

Table 1.6-6 Physical Indices

Item Index

Dimension 472

Weight 24

Table 1.6-7 power supply and Power Consumption

Item Index

power supply -48 VDC (range: -37 VDC ~-57 VDC)

Power Consumption 460 W

Table 1.6-8 Working Environment

Item Index

Temperature(Working) -40℃~55℃

Relative Humidity(Working) 5%~100%

Temperature(Storage) -55℃~70℃

Relative Humidity(Storage) 10%~100%

Table 1.6-9 Reliability

Item Index

Availability ≥99.999842%

MTBF ≥340000 hours

MTTR 1 hour

Down duration ≤ 0.83 min/year

1.6.2.2 Performance Indices

Operation Frequency Band

The operation radio frequency band of R8882 is 1730 MHz~1785 MHz(uplink)/1825

MHz~1880 MHz(downlink).

Output Power

The output power of R8882 is 2x60 W.

Transmission

· The maximum transmission distance is 10 kilometers.

11

LTE_FDD_eNB_E_10 LTE Overview

· Supports two kinds of optical fiber interface mode: 2x3.072 Gbps and 2x2.4576

Gbps.

1.6.2.3 Electromagnetic Compatibility

Table 1.6-10 Electronic Static Discharge Immunity

Item Contact discharge Air discharge

Basic testing 6 KV 8 KV

Enhanced testing 8 KV 15 KV

Table 1.6-11 RF Electromagnetic Field Radiation Immunity

Range Feature Field Strength

80 MHz~800MHz 80%AM(1kHz) 10 V/m

800 MHz~960 MHz 80%AM(1kHz) 10 V/m

960 MHz~1400MHz 80%AM(1kHz) 10 V/m

1400 MHz~2700 MHz 80%AM(1kHz) 10 V/m

2700 MHz~6000 MHz 80%AM(1kHz) 10 V/m

Table 1.6-12 Electrical Fast Transient Burst Immunity

Item Voltage Repetition Frequency

Basic testing ±1 kV 5 kHz

Enhanced testing ±2 kV 5 kHz

Table 1.6-13 Lightning Tolerance

Signal Type Nominal Required

Antenna feeder port 10 kA ± 5 times

The 10 KA protection is guaranteed by the duplex

of the RF module. An external lightning protection

unit is needed for the higher protection other than

10 KA

DC power portexternal SPD 20 kA ± 5 times, Residual Voltage is less

than 250 V.

Shielded cable is used for the R8882

remote power supply

Signal port—dry contact 3 KA

Signal port—RS485 signal 3 KA

AISG power 5 KA

Signal port—AISG 485 port 3 KA

12

Chapter 3 Boards

Table 1.6-14 Radiation Transmission

Frequency range (MHz) Quasi-peak limit (dBuV/m) Distance (m)

30~230 30 10

230~1000 37 10

1G~3G 50 10

3G~6G 54 10

Table 1.6-15 Power Conducted Transmission

Frequency range (MHz)Sum limit(dBuV)

Quasi-peak Average value

0.15~0.50 56~66 46~56

0.50~5 56 46

5~0 60 50

Table 1.6-16 Signal Conducted Transmission

Frequency range (MHz)Sum limit (dBuV)

Quasi-peak Average value

0.15~0.50 84 dBuV~74 dBuV(Voltage)) or

40

dBuV~30dBuA(Current))

74 dBuV~64

dBuV(Voltage)or 30

BuV~20dBuA

(Current))

0.50~30 74 dBuV(Voltage) or 30

dBuA(Current))

64 dBuV(Voltage) or

20 dBuA(Current))

Table 1.6-17 RF Electromagnetic Field Conducted Immunity

Frequency range Voltage Feature Decision Rule

0.15 MHz ~ 80

MHz

10 V 80%AM(1kHz) Rule A

Table 1.6-18 Surge Immunity

SiteOpen circuit Voltage (kV)

Type Wire—Wire Wire—Ground

Indoor

DC power 0.5 1

Long distance wire (wire

length longer than 10

meters)

1 1

Short distance wire (wire

length less than 10 meters)- -

13

2 System Structure

Highlights

Hardware Structure

Software Structure

2.1 Hardware Structure

ZXSDR B8200 L200 consists of a control & clock board, baseband processing boards,

a site alarm board, a power module, and a fan module.

ZXSDR B8200 L200 hardware system is designed according to the structure of

distributed base station in which the baseband unit and radio frequency unit are

separated. It can be classified into two function units: eBBU (Baseband Unit) and

eRRU (Remote Radio Unit). It can either deploy with eRRU, or deploy by combining

the eRRU and eBBU into one cabinet to form macro base station. eBBU and eRRU are

connected via the standard baseband-RF optical interface.

Figure 2.1-5 ZXSDR B8200 L200 hardware structure

15

2.2 Software Structure

The software architecture of ZXSDR B8200 L200 can be divided into three layers,

they are SDR unified platform software, LTE adaptor software and LTE application

software.

Figure 2.2-6 ZXSDR B8200 L200 Software Structure

SDR Unified Platform Software

SDR unified platform software provides the functions of Board Support Package

(BSP), Operation Support Sub-system (OSS) and Bearer Sub-system (BRS).

· BSP provides the device interface to the OS (Operating System).

· OSS is the support layer in this entire framework, which is a hardware

independent platform for running software and provides basic functions like

scheduling, timer, memory management, communication, sequencing control,

monitoring, alarming and logging.

· BRS provides the IP communication function for inter-boards and internetwork

elements.

LTE Adaptor Software

LTE adaptor software accomplishes the functions of Operating Administration and

Maintenance (OAM), and Data Base Sub-system (DBS).

· OAM provides the configuration, alarm and performance measurement function

16

Chapter 3 Boards

for LTE eNodeB.

· DBS is the database system.

Application Layer

The application layer provides LTE functions of Radio Network Layer Control plane

(RNLC)), Radio Network Layer User plane (RNLU), MAC Uplink Scheduler

(MULSD), MAC Downlink Scheduler (MDLSD), and Physical layer (PHY).

· RNLC provides radio control plane’s common and dedicated resource

management and controlling.

· RNLU provides user plane function.

· MULSD provides uplink MAC scheduling.

· MDLSD provides downlink MAC scheduling.

· PHY provides LTE PHY function.

17

3 Boards

Highlights

Board/module

Interface

Indicators

3.1 Overview

ZXSDR B8200 L200 board can be classified into the following types:

· Control and clock board: CC

· Fabric switch board: FS

· Baseband pool board: BPL

· Power module: PM

· Site alarm module: SA

· Fan module: FAN

3.2 CC Board

3.2.1 CC Board Function

ZXSDR B8200 L200 can be configured with maximum 2 CC boards for 1+1

redundancy. There are three main functional modules: a GE switch module, a GPS and

clock module, and a transmission module.

GE switch module

The GE switch module is made as a switching network between CC board and

baseband processing board. User data, control and maintenance signals between CC

board and baseband processing board are all transmitted through this module.

GPS and Clock module

The GPS receiver can be integrated in CC board. The GPS and Clock module support

19

following functions:

· Synchronizing with various external reference clocks, including the GPS clock

and the clock provided by BITS, IEEE 1588, etc.

· Generating and delivering the clock signal to other modules.

· Providing GPS receiver interface and managing the GPS receiver.

· Providing a real-time timing for system operation and maintenance; the real-

time timing can be calibrated by O&M or GPS.

Transmission modules

Transmission modules support following functions:

· Implementing data switching for service data and control flow within the

system.

· S1/X2 interface protocol processing.

· Supporting primary/slave boards hot backup.

· Provide GE/FE physical interfaces.

Other Function

CC board provides other function besides previously mentioned ones:

· Managing software versions of boards and programmable components, and

supporting local and remote software upgrade.

· Monitoring, controlling and maintaining of the base station system, providing

LMT interface.

· Supervising the running status of each board within the system.

· Inventory management.

3.2.2 CC Board Front Panel

CC board font panel is as shown in the figure.

20

Chapter 3 Boards

Figure3.2-7 CC Board Front Panel

3.2.3 CC Board Panel Indicators

Table 3.2-19 CC Indicator Description

LED Color Meaning Description

RUN GreenIndicates the

running state

On: CC starts to run and tries to obtain the logical address

Blinking slowly (on for 1.5 s and off for 1.5 s): Basic process

of the CC is being powered on

Blinking normally (on for 0.3 s and off for 0.3 s): CC is

already powered on and works normally

Blinking slowly (on for 2 s and off for 2 s): CC is performing

the active/standby pre-switching in the case of two CCs

Blinking slowly (on for 1 s and off for 1 s): CC is performing

the active/standby switching in the case of two CCs

Blinking quickly (on for 70 ms and off for 70 ms):

Communication between the active CC and OMP or standby

CC failed

Off: Indicates that the self-check fails

ALM Red Indicates the alarm

Blinking periodically (5 Hz): Indicates that critical and major

alarms are generated

Blinking periodically (1 Hz): Indicates that minor and warning

alarms are generated

Off: Indicates that no alarms are generated

M/SGreen Indicates the

active/standby state

On: Indicates that the board is at active state

Off: Indicates that the board is at standby state

REF Green Indicates the GPS

antenna state or

2 MHz status. It

also shows the

connection states

of the SMA port on

the corresponding

panel

On: Indicates that the antenna feeder system works normally

Off: Indicates that the antenna feeder system and the satellite

work normally and are being initialized

Blinking slowly (on for 1.5s and off for 1.5s): Indicates that

the antenna feeder system is disconnected

Blinking quickly (on for 0.3s and off for 0.3s): Indicates that

the antenna feeder system works normally but can not receive

signals from the satellite

Blinking slowly (on for 2.5s and off for 2.5s): The antenna is

disconnected

21

LTE_FDD_eNB_E_10 LTE Overview

LED Color Meaning Description

Blinking quickly (on for 70 ms and off for 70 ms): Indicates

that no messages are received during the initialization

ETH0

Green Indicates the

link

states of the ETH0

interface.

On: Indicates that the physical link of S1/X2/OMC network

port (electrical port, or optical port) is normal

Off: Indicates that the physical link of S1/X2/OMC network

port is broken

ETH1

Green Indicates the

link

states of the ETH1

interface.

On: Indicates that the physical link of DEBUG/CAS/LMT

interface is normal

Off: Indicates that physical link of DEBUG/CAS/LMT

interface is broken

E0S

Green

Indicates 0~3 E1/T1

link states

During the first second, blinking one time means the first E1 is

normal. Off means the E1 is not available.

During the third second, blinking two times means the second

E1 is normal. Off means the E1 is not available.

During the fifth second, blinking three times means the third

E1 is normal. Off means the E1 is not available.

During the seventh second, blinking four times means the

fourth E1 is normal. Off means the E1 is not available.

E1SGreen Indicates 4~7 E1/T1

link statesAs same as EOS

E2SGreen Indicates 8~11

E1/T1 link statesAs same as EOS

E3SGreen Indicates 12~15

E1/T1 link statesAs same as EOS

HS - - Reserved

3.2.4 CC Board Panel Interface

Table 3.2-20 CC Board Panel Interface

Interface Description

ETH0

ETH0 is used for S1/X2 connection. It is an Ethernet electrical interface

(Adaptive to 100 M/1000 M automatically). ETH0 and TX/RX interfaces are

exclusively used to each other.

DEBUG/CAS/LMT

DEBUG/CAS/LMT is used for eBBU cascading, debugging, and local

maintenance. ETH1 is an Ethernet electrical interface (Adaptive to 10 M/100

M/1000 M automatically).

TX/RX

TX/RX is used for S1/X2 connection. It is an Ethernet optical interface

(supports 1000 BASE-LX/SX or 100 BASE-FX). TX/RX and ETH0 interfaces

are exclusively used to each other.

EXT EXT is mainly used for external GPS receiver or clock extension

22

Chapter 3 Boards

REF REF is used for GPS antenna interface or BITS clock interface

USB Data updating

3.2.5 CC Board Button

RST and M/S,two buttons are there on CC board front panel.

RST: RST is used to reset CC board.

M/S: M/S is used to make active/standby switch.

3.3 BPL Board

3.3.1 BPL Board Function

ZXSDR B8200 L200 can be installed with 1 to 3 BPL boards. One BPL can deal with

20 MHz LTE bandwidth with 3 cells and this configuration can meet the requirements

of most operators. BPL processes LTE baseband protocol specified by 3GPP R8.

BPL board’s main functions are:

· Processing physical layer protocol.

· Providing uplink/downlink I/Q signal.

· Processing MAC, RLC and PDCP protocol.

3.3.2 BPL Board Front Panel

BPL board front panel is as shown in the figure.

Figure3.3-8 BPL Board Front Panel

3.3.3 BPL Board Panel Indicators

Table 3.3-21 BBPL Board Panel Indicators

LED Color Meaning Description

RUN Green Board running

state

Always ON: BPL is at powering on stage

Blinking periodically (0.5 Hz): BPL is downloading

23

LTE_FDD_eNB_E_10 LTE Overview

LED Color Meaning Description

software

Blinking periodically (0.3 s ON, 0.3 s OFF): BPL working

state is normal

OFF: BPL power on failed

ALM Red Board alarm

Blinking periodically (70 ms ON, 70 ms OFF): Critical and

major alarms are generated

Blinking periodically (1500 ms ON, 1500 ms OFF): Minor

and warning alarms are generated

Always ON: BPL self-check failed

Off: No alarms are generated

HS - - Reserved

BLS GreenBackplane link

state

Blinking periodically (1 Hz): TDM physical links between

BPL board and FS board are normal

Always ON: TDM physical links between BPL board and

FS board are abnormal

OFF: There is no TDM signal

BSA GreenBoard running

state

Blinking periodically (1 Hz): Physical links between CPU

and DSP are normal

Blinking periodically (2 Hz): Physical links between CPU

and DSP are abnormal

Always ON: SRIO SW ACKID error

OFF: Physical links between CPU and DSP are broken

LNK GreenEthernet link

states

Blinking periodically (1 Hz): Ethernet physical links

between BPL and CC are normal

OFF: Ethernet physical links between CPU and DSP are

broken are broken

CST GreenCPU running

state

Blinking periodically (1 Hz): CPU runs normally

OFF: CPU runs abnormally

OF0~

OF2Green

Optical interface

running state

Blinking periodically (1 Hz): Optical interface runs normally

Always ON: Optical interface runs abnormally

Off: Los of signal

3.3.4 BPL Panel Interfaces

There are 3 pairs of optical interfaces on the BPL board, which are mainly used to

connect to eRRU.

3.3.5 BPL Board Button

RST button is used to reset BPL board.

24

Chapter 3 Boards

3.4 SA Board

3.4.1 SA Board Function

ZXSDR B8200 L200 is configured with 1 Site Alarm (SA) board. The board will be

managed by CC board.

The main function of SA board are:

Responsible for fan speed control and alarming.

Providing external interfaces.

Monitoring serial interface.

Monitoring boards’ temperature.

Providing dry contacts and the lightening protection for the external interfaces.

3.4.2 SA Board Front Panel

Figure3.4-9 SA Board Front Panel

3.4.3 SA Board Panel Indicators

Table 3.4-22 SA Board Panel Indicators

LED Color Meaning Description

RUN GreenBoard running

state

Always ON: Indicates that SA board is at reset state.

Blink (on for 0.3 s and off for 0.3 s repeatedly: Indicates

that SA board runs normally

Off: Indicates that SA board self-check failed

ALM RedBoard alarm

state

Always ON: Indicates that alarms are generated on SA

board.

Off: Indicates that no alarm is generated on SA board.

25

LTE_FDD_eNB_E_10 LTE Overview

3.4.4 SA Board Panel Interfaces

There is one RS485/232 interface on SA board panel, which is mainly used as

monitoring.

3.5 PM Board

3.5.1 PM Board Function

Power Module (PM) is in charge of the presence state detection of all the other boards,

providing or removing the power to or from the other boards.

ZXSDR B8200 L200 can be configured with 2 PMs, working with 1+1 redundancy

mode, or load-balancing when the power consumption of the eBBU frame is beyond

the rated output power of a single PM.

PM has the following functions:

Providing two kinds of DC output voltage: 3.3 V for Management Power (MP) and 12

V for Payload Power (PP).

Reset all of the other boards in eBBU frame under the control of man-machine

commands.

Detecting the presence/absence state of all the other boards in eBBU frame.

Providing protection of input over-voltage/under-voltage.

Providing protection of output over-current and overload power management.

3.5.2 PM Board Front Panel

PM board front panel is as shown in below.

26

Chapter 3 Boards

Figure3.5-10 PM Board Front Panel

3.5.3 PM Board Panel Indicators

Table 3.5-23 PM Board Panel Indicators

LED Color Meaning Description

RUN Green Board running state

Always ON: Board is at reset state

Blinking periodically (1 Hz): Board runs

normally

Blinking periodically (2 Hz): Communicates

normally between with PM board and CC

board

Off: Board self-check failed

ALM Red Board alarm state

Always ON: Alarms are generated on PM

board

Off: No alarm is generated on PM board

3.5.4 PM Board Panel Interfaces

PM board panel interfaces are illustrated in the table.

Table 3.5-24 PM Board Panel Interfaces

Interface Description

MON Debugging interface, RS232 interface

-48 V/-48 V RTN -48 V input

3.5.5 PM Board Button

ON/OFF:Power Button

27

LTE_FDD_eNB_E_10 LTE Overview

3.6 FAN Module

3.6.1 FAN Module Function

ZXSDR B8200 L200 is configured with 1 Fan Module(FAN). The main functions of

FAN are:

· Fan speed auto-adjustment according to the equipment working temperature.

· Monitor, control and fan state reporting.

3.6.2 FAN Module Front Panel

FAN module front panel is as shown in below.

Figure3.6-11 FAN Module Front Panel

3.6.3 FAN Module Panel Indicators

Table 3.6-25 FAN Module Panel Indicators

LED Color Meaning Description

RUN Green Running state

Always ON: FAN is powered on and is not controlled by

SA board.

Blinking (on for 0.3 s and off for 0.3 s): FAN is

controlled by SA board.

28

Chapter 3 Boards

LED Color Meaning Description

Off: FAN is not powered on.

ALM Red Alarm state

If ALM indicator is ON:

If RUN LED is on, it indicates that FAN is powered on

and is not controlled by SA board.

If RUN LED is blinking normally (ON for 0.3 s and OFF

for 0.3 s), it indicates that FAN module works

abnormally.

If ALM indicator is OFF:

If RUN LED is OFF, it indicates that FAN is not

powered ON.

If RUN LED is blinking normally (ON for 0.3 s and OFF

for 0.3 s), it indicates that FAN works normally.

29

4 Cables

Highlights

ZXSDR B8200 L200 Cables

ZXSDR R8882 L268 Cables

4.1 ZXSDR B8200 L200 Cables

4.1.1 DC Power Cable

DC power cable is used for connecting ZXSDR B8200 L200 to external power

distributed unit.

Figure4.1-12 DC Power Cable

Table 4.1-26 Cable Signal Relation

Name Signal Description End

-48 V RTN Voltage:: 0 VDC A1 Black conductor

-48 V Voltage::-48 VDC A2 Blue conductor

4.1.2 PE Cable

PE cable is used for connecting ZXSDR B8200 L200 to the grounding network, so as

to provide protection and ensure personal safety. PE cable is a 16 mm2 yellow-green

cable with TNR terminals at both ends.

The PE cable overall appearance is as shown in below.

31

Figure4.1-13 PE Cable Appearance

4.1.3 S1/X2 Cables

S1/X2 cable is used for connecting ZXSDR B8200 L200 to core network, or peer

eNodeB, or transport devices. It can either be Ethernet cable or optical fiber.

4.1.3.1 S1/X2 Optical Fiber

S1/X2 optical fiber can either be single-mode or multi-mode, and it adopts LC type

connector.

Figure4.1-14 S1/X2 Cable Appearance

4.1.3.2 S1/X2 Ethernet Cable

The overall S1/X2 Ethernet cable is as shown in below.

32

Cables

Figure4.1-15 S1/X2 Ethernet Cable

The Ethernet cable signal relation is shown in the table.

Table 4.1-27 Ethernet Cable Signal Relations

End A Definition Color

1 ETH-TR1+ White/Orange 1

2 ETH-TR1- Orange 2

3 ETH-TR2+ White/Green 3

4 ETH-TR3+ Green 4

5 ETH-TR3- White/Blue 5

6 ETH-TR2- Blue 6

7 ETH-TR4+ White/Brown 7

8 ETH-TR4- Brown 8

4.1.4 RF Cable

RF cable is used for connecting ZXSDR B8200 L200 to eRRU.

Figure4.1-16 RF Cable Appearance

End A is used for connecting to eRRU and end B used for connecting to ZXSDR

B8200 L200.

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LTE_FDD_eNB_E_10 LTE Overview

4.1.5 Dry Contact Cable

Dry contact cable is used for connecting ZXSDR B8200 L200 to external monitoring

device, and thus receive dry contact data from external device or send dry contact data

to external device.

Dry contact cable overall appearance is as shown in below. End A of the cable is DB25

connector.

Figure4.1-17 Dry Contact Cable Appearance

The signals of an input dry-contact cable describes is shown in below.

Table 4.1-28 Dry Contact Cable Signals Relation

Signal Pin ( End A) Color

I_SWIO0

GND

114

White

Blue

I_SWIO1GND

215

White

Orange

I_SWIO2GND

316

White

Green

I_SWIO3GND

417

White

Brown

I_SWIO4GND

518

Red

Blue

I_SWIO5GND

619

Red

Orange

B_SWIO1

GND

720

Red

Green

B_SWIO2GND

821

Red

Brown

--

922

--

34

Cables

--

1023

--

1. B_SWIO1~B_SWIO2 indicates channels 1-2 dry-contact input/output

2. I_SWIO0–I_SWIO5 indicates the channels 1-6 dry-contact input

4.1.6 GPS Jumper

GPS feeder jumper is used for connecting ZXSDR B8200 L200 to GPS antenna.

Figure4.1-18 GPS Jumper

4.2 ZXSDR R8882 L268 Cables

4.2.1 DC Power Input Cable

The DC power input cable supports the input of -48 V DC power and a dry contact

signal.

Figure4.2-19 DC Power Input Cable

Table 4.2-29 Signal Definition

Color of Core Name Definition

Blue -48V -48 V DC Power

Black -48V GND -48 V DC ground

White NODE_IN+ Dry contact

Blue NODE_IN- Dry contact

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LTE_FDD_eNB_E_10 LTE Overview

4.2.2 Protective Grounding Cable

The protective grounding cable provides protective earth for the ZXSDR R8882

chassis.

Figure4.2-20 Appearance of the Protective Grounding Cable

4.2.3 Fiber Cable for Connecting a BBU

A Single Mode Fiber (SMF) cable is used to connect the ZXSDR R8882 to a BBU.

End A of this cable is mounted with a waterproof LC connector, and end B of this

cable is mounted with an LC connector.

1. Outdoor waterproof assembly

Figure4.2-21 Fiber Cable for Connecting a BBU

A Single Mode Fiber (SMF) cable is used to connect the ZXSDR R8882 to a BBU.

End A of this cable is mounted with a waterproof LC connector, and end B of this

cable is mounted with an LC connector.

4.2.4 Fiber Cable for Cascading RRUs

1. Outdoor waterproof assembly

Figure4.2-22 Fiber Cable for Cascading RRUs

36

Cables

An SMF cable with both ends mounted with an waterproof LC connector is used to

connect two RRUs.

4.2.5 External Monitoring Cable

The external monitoring cable supports the interaction of signals between the ZXSDR

R8882 and external devices, including the interaction of alarm signals, RS485/RS422

control signals, and dry contact signals.

End A of this cable is mounted with an 8-pin round plug. End B of this cable needs to

be mounted with an appropriate connector on field according to the connector type of

the external device to be connected. The cable length is 1.2 m.

Figure4.2-23 External Monitoring Cable

Table 4.2-30 Signal Definition

Name Color of Core Definition

PIN1 Brown Dry contact input, positive

PIN2 Yellow Dry contact input, negative

PIN3 Blue Dry contact input, positive

PIN4 White Dry contact input, negative

PIN5 Green Full-duplex RS485 signal, positive

PIN6 Gray Full-duplex RS485 signal, negative

PIN7 Red Full-duplex RS485 signal, positive

PIN8 Black Full-duplex RS485 signal, negative

4.2.6 AISG Control Cable

The AISG control cable is used to send AISG control signals to an RET antenna that is

connected to the ZXSDR R8882. An 8-pin aviation plug in compliance with IEC

60130-9-ED is mounted on both ends of the AISG control cable.

37

LTE_FDD_eNB_E_10 LTE Overview

Figure4.2-24 AISG Control Cable

Table 4.2-31 Signal Definition

Pin (End A) Pin (End B) Name Definition

PIN3 PIN1 RS485B RS485-

PIN5 PIN2 RS485A RS485+

PIN6 PIN3,PIN4 AISG_PWR DC power (output)

PIN7 PIN5,PIN6 GNDPDC power ground

(output)

PIN1,PIN2,PIN4,PIN8

- NC Not used

4.2.7 RF Jumpers

The RF jumper is used to connect the feeder to the feeder interface of R8882. The

jumper should be connected after the main feeder is connected.

Normally, use a finished 2 m 1/2" jumper as the RF jumper, or make a jumper as

required by the on-site condition.

38

Cables

Figure4.2-25 Connecting the Feeder Jumper

39

5 Networking

Highlights

Product Networking Mode

Typical Configuration

5.1 Product Networking Mode

5.1.1 Star Networking

ZXSDR B8200 L200 connects EPC and other eNodeBs through S1/X2 interfaces with

FE/GE, and connects to eRRUs through standard baseband-RF interfaces.

ZXSDR B8200 L200 and eRRU support star and chain networking.

Figure5.1-26 Product Networking Mode

41

In star networking mode, ZXSDR B8200 L200 can be connected with 9 eRRUs. In

chain networking mode, eRRU can cascade to 4 grades.

Figure5.1-27 Star Networking

5.1.2 Cascade Networking

The cascade networking of a BBU and multiple RRUs (ZXSDR R8882) is shown in

below.

Figure5.1-28 Cascade Networking

42

Cables

5.2 Typical Board Configuration

ZXSDR B8200 L200 typical board configuration is as shown in the table.

Table 5.2-32 Typical Board Configuration

Board Number Description

BPL 1 or 3 Baseband processing for LTE board

CC 1 Control and clock board

PM 1 Power module

FAN 1 Fan module

SA 1 Site Alarm board

ZXSDR B8200 L200 also supports boards/modules configurations listed below:

· 1xCC, 3xBPL, 2xPM, 1xFAN, 1xSA

· 2xCC, 3xBPL, 2xPM, 1xFAN, 1xSA, 1xFS

43