eNodeB Hardware Basic Principle

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.

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LTE Overview

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

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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

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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 1.2-1 Product Location In LTE Network

1.3 Product Overall Appearance ZXSDR B8200 L200 overall appearance is shown in below.

4


Figure 1.3-1

ZXSDR B8200 Overall Appearance

ZXSDR R8882 L268 overall appearance is shown in below.

Figure 1.3-2

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

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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


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

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LTE Overview

· Synchronization · 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 8


table describes the state of typical configuration. The weight of ZXSDR B8200 L200 is less than 7.5 Kg.

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 Item

Typical Power Consumption 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 9

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LTE Overview

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.

Table 1.6-3 Product Working Environment Indices Item Temperature Relative Humidity

Requirement

Long-term

-15~ +50 ℃

Short-term

-25 ~ +55 ℃

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 BPL

Interface

Connector Type

3x optical interfaces

SFP (LC)

1xGE, 2xFE

2 RJ45 for Electrical and one SFP (LC) for optical

1xEXT

CC

RS485 can be used to connect with other external receiver

FS

1xGPS

SMA

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 10

Chapter Error! Use the Home tab to apply 标题 1 to the text that you want to appear here. Error! Use th e Home tab to apply 标题 1 to the text that you want to appear here. Anti-static protection

Capable of protecting against the contact discharge of ±6000 V, Air discharge of ±8000 V ±2000 V between lines and the ground

Surge anti-interference

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). 11

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LTE Overview

Output Power The output power of R8882 is 2x60 W. Transmission · The maximum transmission distance is 10 kilometers. · 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 10 kA ± 5 times

Antenna feeder port

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 20 kA ± 5 times, Residual Voltage is less than

DC power portexternal SPD 12

Chapter Error! Use the Home tab to apply 标题 1 to the text that you want to appear here. Error! Use th e Home tab to apply 标题 1 to the text that you want to appear here. 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

Table 1.6-14 Frequency range (MHz)

Radiation Transmission

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 Sum limit(dBuV)

Frequency range (MHz)

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

Sum limit (dBuV)

Frequency range (MHz) 0.15~0.50

Signal Conducted Transmission

Quasi-peak

Average value

84 dBuV~74 dBuV(Voltage)) or 40

74

dBuV~30dBuA(Current))

dBuV(Voltage)or

dBuV~64 30

BuV~20dBuA(Current)) 74 dBuV(Voltage) or 30 dBuA(Current))

0.50~30

64 dBuV(Voltage) or 20 dBuA(Current))

Table 1.6-17 Frequency range 0.15 MHz～80 MHz

RF Electromagnetic Field Conducted Immunity

Voltage 10 V

Feature 80%AM（1kHz）

Table 1.6-18

13

Surge Immunity

Decision Rule Rule A

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LTE Overview

Open circuit Voltage (kV)

Site

Wire—Wire

Type DC power Long distance wire (wire length

Indoor

longer than 10 meters) Short

distance

wire

(wire

length less than 10 meters)

14

Wire—Ground

0.5

1

1

1

-

-

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.

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LTE Overview

Figure 2.1-1

ZXSDR B8200 L200 hardware structure

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 2.2-1

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 16


Maintenance (OAM), and Data Base Sub-system (DBS). · OAM provides the configuration, alarm and performance measurement function 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

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LTE Overview

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


Figure3.2-1

CC Board Front Panel

3.2.3 CC Board Panel Indicators Table 3.2-1 LED

Color

CC Indicator Description

Meaning

Description 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

RUN

Green

Indicates the running state

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

ALM

Red

Indicates the alarm

Blinking periodically (1 Hz): Indicates that minor and warning alarms are generated Off: Indicates that no alarms are generated

M/S

Green

Indicates the

On: Indicates that the board is at active state

active/standby state

Off: Indicates that the board is at standby state

Green

REF

On: Indicates that the antenna feeder system works normally Indicates the GPS

Off: Indicates that the antenna feeder system and the satellite

antenna state or

work normally and are being initialized

2 MHz status. It

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

also shows the

the antenna feeder system is disconnected

connection states

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

of the SMA port on

the antenna feeder system works normally but can not receive

the corresponding

signals from the satellite

panel

Blinking slowly (on for 2.5s and off for 2.5s): The antenna is disconnected 21

LTE_FDD_eNB_E_10

LED

LTE Overview

Color

Meaning

Description Blinking quickly (on for 70 ms and off for 70 ms): Indicates that no messages are received during the initialization

Green ETH0

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

Green ETH1

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

Green

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

E0S

Indicates 0~3 E1/T1

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

link states

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.

E1S

E2S E3S HS

Green

Indicates 4~7 E1/T1 link states

Green


Green


-

As same as EOS

As same as EOS As same as EOS Reserved

-

3.2.4 CC Board Panel Interface Table 3.2-2

CC Board Panel Interface

Interface

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

ETH0

(Adaptive to 100 M/1000 M automatically). ETH0 and TX/RX interfaces are exclusively used to each other. DEBUG/CAS/LMT is used for eBBU cascading, debugging, and local

DEBUG/CAS/LMT

maintenance. ETH1 is an Ethernet electrical interface (Adaptive to 10 M/100 M/1000 M automatically). TX/RX is used for S1/X2 connection. It is an Ethernet optical interface

TX/RX

(supports 1000 BASE-LX/SX or 100 BASE-FX). TX/RX and ETH0 interfaces are exclusively used to each other. 22

Chapter Error! Use the Home tab to apply 标题 1 to the text that you want to appear here. Error! Use th e Home tab to apply 标题 1 to the text that you want to appear here. EXT

EXT is mainly used for external GPS receiver or clock extension

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.

Figure3.3-1

BPL Board Front Panel

3.3.3 BPL Board Panel Indicators Table 3.3-1 LED

Color

Meaning

BBPL Board Panel Indicators Description

23

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LTE Overview

LED

Color

Meaning

Description Always ON: BPL is at powering on stage Blinking periodically (0.5 Hz): BPL is downloading

RUN

Green

Board running

software

state

Blinking periodically (0.3 s ON, 0.3 s OFF): BPL working state is normal OFF: BPL power on failed Blinking periodically (70 ms ON, 70 ms OFF): Critical and major alarms are generated

ALM

Red

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

Board alarm

and warning alarms are generated Always ON: BPL self-check failed Off: No alarms are generated

HS

-

-

Reserved Blinking periodically (1 Hz): TDM physical links between

BLS

Green

BPL board and FS board are normal

Backplane link

Always ON: TDM physical links between BPL board and

state

FS board are abnormal OFF: There is no TDM signal Blinking periodically (1 Hz): Physical links between CPU and DSP are normal

BSA

Green

Board running

Blinking periodically (2 Hz): Physical links between CPU

state

and DSP are abnormal Always ON: SRIO SW ACKID error OFF: Physical links between CPU and DSP are broken Blinking periodically (1 Hz): Ethernet physical links

LNK

Green

Ethernet link

between BPL and CC are normal

states

OFF: Ethernet physical links between CPU and DSP are broken are broken

CST

Green

OF0~OF2

Green

CPU running

Blinking periodically (1 Hz): CPU runs normally

state

OFF: CPU runs abnormally Blinking periodically (1 Hz): Optical interface runs normally

Optical interface

Always ON: Optical interface runs abnormally

running state

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.

24


3.3.5 BPL Board Button RST button is used to reset BPL board.

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

Figure3.4-1

SA Board Front Panel

3.4.3 SA Board Panel Indicators Table 3.4-1 SA Board Panel Indicators LED

Color

Meaning

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

RUN

Green

Board running

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

state

that SA board runs normally Off: Indicates that SA board self-check failed 25

LTE_FDD_eNB_E_10

LED ALM

LTE Overview

Color Red

Meaning

Description Always ON: Indicates that alarms are generated on SA

Board alarm

board.

state

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

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


Figure3.5-1 PM Board Front Panel

3.5.3 PM Board Panel Indicators Table 3.5-1 PM Board Panel Indicators LED

Color

Meaning

Description Always ON: Board is at reset state Blinking periodically (1 Hz): Board runs normally

RUN

Green

Board running state

Blinking periodically (2 Hz): Communicates normally between with PM board and CC board Off: Board self-check failed Always ON: Alarms are generated on PM

ALM

Red

Board alarm state

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 3.5-2 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.

Figure3.6-1

FAN Module Front Panel

3.6.3 FAN Module Panel Indicators Table 3.6-1 FAN Module Panel Indicators LED

Color

Meaning

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

RUN

Green

SA board.

Running state

Blinking (on for 0.3 s and off for 0.3 s): FAN is controlled by SA board. 28

Chapter Error! Use the Home tab to apply 标题 1 to the text that you want to appear here. Error! Use th e Home tab to apply 标题 1 to the text that you want to appear here. LED

Color

Meaning

Description Off: FAN is not powered on. 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

ALM

Red

Alarm state

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.

Figure4.1-1

Table 4.1-1 Name

DC Power Cable

Cable Signal Relation

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

LTE_FDD_eNB_E_10

LTE Overview

Figure4.1-2 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.

Figure4.1-3

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

Figure4.1-4

S1/X2 Ethernet Cable

The Ethernet cable signal relation is shown in the table.

Table 4.1-2 End 1 2 3 4 5 6 7 8

Ethernet Cable Signal Relations

A

Definition

Color

ETH-TR1+

White/Orange

1

ETH-TR1-

Orange

2

ETH-TR2+

White/Green

3

ETH-TR3+

Green

4

ETH-TR3-

White/Blue

5

ETH-TR2-

Blue

6

ETH-TR4+

White/Brown

7

ETH-TR4-

Brown

8

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

Figure4.1-5

RF Cable Appearance

End A is used for connecting to eRRU and end B used for connecting to ZXSDR B8200 L200.

33

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.

Figure4.1-6

Dry Contact Cable Appearance

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

Table 4.1-3

Dry Contact Cable Signals Relation

Signal

Pin ( End A)

Color

I_SWIO0

１

White

GND

１４

Blue

I_SWIO１

２

White

GND

１５

Orange

I_SWIO２

３

White

GND

１６

Green

I_SWIO３

４

White

GND

１７

Brown

I_SWIO４

５

Red

GND

１８

Blue

I_SWIO５

６

Red

GND

１９

Orange

B_SWIO1

７

Red

GND

２０

Green

B_SWIO２

８

Red

GND

２１

Brown

－

９

－ 34

Cables

－

２２

－

－

１０

－

－

２３

－

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.

Figure4.1-7

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.

Figure4.2-1

DC Power Input Cable

Table 4.2-1 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

35

LTE_FDD_eNB_E_10

LTE Overview

NODE_IN－

Blue

Dry contact

4.2.2 Protective Grounding Cable The protective grounding cable provides protective earth for the ZXSDR R8882 chassis.

Figure4.2-2

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

Figure4.2-3

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.

4.2.4 Fiber Cable for Cascading RRUs

36

Cables

1. Outdoor waterproof assembly

Figure4.2-4

Fiber Cable for Cascading RRUs

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.

Figure4.2-5

External Monitoring Cable

Table 4.2-2 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 37

LTE_FDD_eNB_E_10

LTE Overview

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.

Figure4.2-6

AISG Control Cable

Table 4.2-3 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

GNDP

-

NC

PIN1，PIN2， PIN4，PIN8

DC

power

ground

(output) 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

Figure4.2-7

39

Connecting the Feeder Jumper

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.

Figure5.1-1 Product Networking Mode

In star networking mode, ZXSDR B8200 L200 can be connected with 9 eRRUs. In 41

LTE_FDD_eNB_E_10

LTE Overview

chain networking mode, eRRU can cascade to 4 grades.

Figure5.1-2 Star Networking

5.1.2 Cascade Networking The cascade networking of a BBU and multiple RRUs (ZXSDR R8882) is shown in below.

Figure5.1-3

42

Cascade Networking

Cables

5.2 Typical Board Configuration ZXSDR B8200 L200 typical board configuration is as shown in the table.

Table 5.2-1 Board

Typical Board Configuration Description

Number

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

eNodeB Hardware Basic Principle

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