WR SS02 E1 1 ZXSDR Base Station Structure and Principle 65p

ZXSDR Base Station Structure and Principle

ZTE University

Content

ZXSDR Base Station Family Overview ZXSDR Base Station IntroductionZXSDR Base Station Highlights

Evolution of Multi-Mode Base Station

ZTE macro-Base Station, IP architecture, 18TRX

cabinet

Different Base Station systems overlappedTDM/ATM platformNarrowband architectureLow integration and high consumption G1 Multimode Base Station

Different Base Station Systems Interchanged3G BBU/RRU Interchangeable IP/ATM architectureIncreasing integration

G2 Multimode Base Station

Shared broadband multi-carrier moduleShared uTCA BBUFull-IP architecture and unified platformMulti-system conversion for same frequency softwareUltra-high integration and low consumption

G3 Multimode Base Station - SDR

Unified Radio Resource ManagementSystem conversion for adjacent frequency softwareIntegrated BSC functionMESH network Architecture

G4 Multimode Base Station - Flat SDR

ZTE SDR, 36TRX cabinet

Traditional macro-Base Station, ATM

architecture, 12TRX cabinet

Future Oriented SDR Technology —— Ensuring Multi-Mode Network Convergence

W

HH+G

L

Convergence

SDR

Based on unified IP platform with MCPA

New generation multi mode base station

Convergence, revolution for traditional base station•Smart software

supports LTE evolution•Smart configuration supports different systems

•Same base station supports different systems•Software upgrade supports different evolutions

•Multi-mode•Multi-band•Flat network•Smooth evolution

Software Solution

Define Designed

Radio Refarming

Innovative Base Station Platform Unified multi-mode and multi-

frequency band Base Station hardware platform

μTCA –based BBU baseband processing unit

Platform structure with separated baseband and RF units

RF unit based on MCPA

中中中中 SDR 中中中中中中中中中中中中中中中中中中中中中中中中Spectrum resource optimization utilization

Network resource optimization integration

Smooth wireless network evolution Optimal TCO solution

CDMA2000 WCDMA

LTEGSM TD-SCDMA

ATCA/mTCA

ATCA (Advanced Telecommunication Computer Architecture): adopted by PICMG in 2003

Micro TCA (u TCA): ATCA, be fit for accessing network

Broadband MCPA Single-Carrier

PA Multi-Carrier PA

Combiner & Antenna

Interface

Digital IF Process

BBU

PA1

TRX1

PA2

TRX2

PA3

TRX3

PA4

TRX4f1 f2 f3 f4

Duplex & Antenna

MCPA

MTRX

Interface

BBU

Digital IF Process

（ f1~f6)

（ f1~f6)

SDR design is based on MCPA at the same frequency; MCPA provides flexible frequency optimization technology and better equipment integrity.

SDR Based Uni-RAN Solution Highlights

Common Components Shared

•Different BP boardsSDR RRU Spectrum Refarming CapableMulti-band Supported

Multi-Mode Base Station and Convergent Radio Network Controller

Multi-band Support Smooth EvolutionEDGE EvolutionGSM->UMTS->LTE

Full Speed HSPA64QAM HSPA+MIMO HSPA+DC+64QAM HSPA+

50% PA EfficiencyD-PT Technology3 Sector RRU SolutionGreen Energy

Outdoor InstallationZero FootprintSmaller SizeLighter Weight

High Quality Base Station ProductHigh Reliability NetworkingUnified O&M SystemPowerful Network Optimization Tools

SDR Based Series Base Stations Family

Multi-Mode Supported GSM/UMTS/HSPA HSPA+/LTE

Multi-Band Supported G/U900M, G/U1800M U/L2100M, U/L2600M

Long term TCO Saving 50% HPA Technology Smart Carrier On/Off

3 Sectors in 1 RRUSmooth Evolution 64QAM HSPA+ MIMO HSPA+ LTE

Based on SDR hardware platform, all IP and multiple carriers capable

All base stations share same components, higher integration and less spares

Baseband Unit

B8200

R8860R8840

Indoor MacroZXSDR BS8800

Outdoor MicroZXSDR BS8906/8906E

Distributed MacroZXSDR BS8700

RSU40RSU60RSU82Outdoor Macro

ZXSDR BS8900A

Radio Unit

RSU40RSU60RSU82

R8880 R8882

RRUBBU

Indoor Macro

OutdoorMacro

MCPA-based broadband Radio Unit with multi-mode supported.

Sufficient output power of HPA with lower power consumption.

MicroTCA structure Base Band Unit with high reliability and easy expansion.

High integrity & processing capability; upgrade to HSPA+ via software; minimum upgrade cost to support LTE.

ZTE SDR 4 Key Features

SDR Base Station Key Features

Content


SDR Base Station IntroductionSDR Base Station Introduction

Baseband Unit and Radio Unit Distributed Base Station: ZXSDR BS8700 Introduction

BBU: B8200 RRU series

Macro Indoor ： ZXSDR BS8800 Macro Outdoor ： ZXSDR BS8900A Micro Outdoor： ZXSDR BS8906

Base Band Unit — SDR B8200

Volume:88.4×482.6×197mm（ H×W×D） Weight: 8.75kg (full configuration) Typical Power Consumption : UMTS: 80W(1BPC), 115W(2BPC)

GSM: 60W(12TRX), 75W(24TRX) Power Supply: -48V DC Temperature Range: -20℃ ～ 55℃ Humidity Range: 5%～ 95%

Based on Unified MicroTCA Platform

2U

482.6mm

88.4mm

Uplink： 192CEDownlink： 192CEDownlink： 43.2MbpsUplink： 15Mbps

BPC ProcessingCapability

Processing Capability: UMTS: 30CS ( 6CS *5 BPCs) GSM: 60TRX

Base Band Processing Capability: Uplink/ Downlink: 960CE

Data Processing Capability: Downlink: 216Mbps Uplink: 75Mbps

Abis/Iub Interface: 2*STM-1； 16*E1/T1； 1*FE/GE

Electric/Optical(8 VLAN) To RRU: 12*1.25Gbps CPRI optical

interface

Performance IndexPerformance Index

Physical IndexPhysical Index

Interface IndexInterface Index

19 inch

CC Board Introduction

GPS system clock & RF reference clock;Abis Iub interface function;Ethernet switch function, providing switch plan for signaling and media stream;Rack management

Control & Clock Board

Board LED Color Meaning Description

CC

HS BluePlugging/Unplugging Indicator

On: The board can be unplugged.Flashing: The board is being activated or deactivated.Off: The board cannot be unplugged.

RUN Green Running Indicator

Always on: The board is in reset state.Flashing at 1Hz: The board is normally running.Off: Self test fails.

Alarm Red Alarm Indicator

On: The board has an alarm.Off: The board has no alarm.

E0S GreenE1/T1 status indicator (link 0–3)

Alternate flash for different links; the max 4 flashes per second; flashing at frequency of 5 Hz.The first second: one flash means Link 0 is normal and OFF means Link 0 is not in use.The third second: two flashes means Link 1 is normal and OFF means Link 1 is not in use.The fifth second: three flashes means Link 2 is normal and OFF means Link 2 is not in use.The seventh second: four flashes means Link 3 is normal.and OFF means Link 3 is not in use.Recycle. Each cycle lasts for eight seconds.

CC Indicators


CC


The same as E0S.


The same as E0S.


The same as E0S.

MS GreenActive/Standby status indicator

On: The board is in active statusOff: The board is in standby status

REF Green

GPS antenna state or 2 MHz state, connection state of SMA Interface on corresponding panel GPS

Always on: The antenna feeder is normal.

Always off: The antenna feeder and satellite are normal, in initialization state.Slow Flash (flashing at 1 Hz)): The antenna feeder is broken.Fast Flash (flashing at 2 Hz): The antenna feeder is normal but cannot receive satellite signal.Slowest Flash (flashing at 0.5 Hz): Antenna short circuitQuickest Flash (flashing at 5 Hz): No message is received at the initialization stage.

CC Indicators


CC

ETH0 GreenAbis/Iub interface link state

On: Physical link of Abis/iub network interface (optical or electrical) is normal.Off: Physical link of Abis/Iub network interface is broken.

ETH1 GreenLink state of ETH1 network interface

On: Physical link of network interface is normal.Off: Physical link of network interface is broken.

CC Indicators

PM Board Introduction

Power Module16 internal interface for +12V load power16 internal interface for +3.3V management powerMeasurement and protection of input over-voltage/under-voltage;Output over-current protection and load power management

Power Module

SA/SE Board Introduction

Site Alarm Board

Site Alarm Board/Site Alarm Extender Board(optional)Alarm monitor and rev control of no more than 9 fans;Signal monitor and interface lightning protection for the rack;Providing 6 input dry contact interfaces, 2 input /output dry contact interface;Providing 8 lines of E1/T1 interface

Site Alarm Extender

Jumper X5 is used to set E1/T1 transmission mode.TWO LSB POSITIONS OF X5

TWO MSB POSITIONS OF X5

SA Jumpers

FS Board IntroductionFabric Switch Board

Fabric Switch ModuleBaseband IQ data exchange;Providing interface between RRU and BBU

Baseband Board Introduction

Universal Baseband Processing Board for GSM

Baseband modulation, maximum processing capacity is 12 carriers;

Supporting baseband frequency hopping; Supporting static and dynamic power control;

Baseband Processing Board Type C maximum processing capacity is 6 carrier-sectors;

maximum CE for UL/DL is 192/192 CE; maximum HSDPA throughput is 43.2Mbps maximum HSUPA throughput is 15Mbps

Baseband Board


UPBG


Always on: The board is in reset state.Flashing at 1Hz: The board is normally running.Off: Self test fails.


On: The board has an alarm.Off: The board has no alarm.

HS BluePlugging/Unplugging Indicator

On: The board can be unplugged.Flashing: The board is being activated or deactivated.Off: The board cannot be unplugged.

PM/FS/SA/uBPG/BPC Indicators

Cable Connection of B8200

Radio Unit —RSU40（ U） /RSU60（ G/U）

Number Interface Interface Description

1 Power Power supply interface

2 AISG AISG device interface3 Mon External device interface

4、 5 Test、 DBG Debug, test interface

6 TX RX Interface between BBU and RRU or RRU cascade

7 RXout、 RXin Frequency expand interface

8 ANT Main and diversity antenna interface

RSU40/RSU60 is radio unit based on MCPA technology, consists of MCPA (multi-carrier power module) module, transceiver module, and duplex filter LNA, and connects antenna via TX/RX, RX port.

Compact and light

Feeder Interface

CPRI optical to BBU, or connect via SFP high-speed cable

RX expand interface

Radio Unit —RSU82(G/U)

Number Interface Interface Description

1 ANT Main and diversity antenna interface

2 Mon External device interface

3 TX RX Interface between BBU and RRU or RRU cascade

4 Mon External device interface

5 Power Power supply interface15

4

2

31

RSU 82 is for both GSM and UMTS; 2 PA: 2T4R; Weight: 15Kg Dimension: 482mm x 72mmx360mm Max TOC:

GSM: 2×80W (GMSK)/2×50W(8PSK) UMTS: 2×80W(900M)， 2×60W(2100M)

Sensitivity: GSM: -113dBM UMTS: -126.5dBm@ single antenna

-129.2dBm@ Dual antenna Frequency band: 900M, 1800M, 2100M

Hardware Architecture of BS8700

B8200+

=

RRU

BS8700

Fiber

BBU

Radio UnitRadio UnitSA/

SE/NIS CC

BBFS RRU

E1

GE/FE

Clock Data

Control Signaling

Antenna

STM-1

CPRI

The structure of BS8700 is BBU plus RRU, with separated modules as Base band unit and RF unit.

Remote Radio Unit – R8840Performance IndexPerformance Index Support maximal 4 carriers Support 1C1S ~ 4C1S Output Power: 60W Receive Sensitivity: -126.5dBm@sigle antenna -129.2dBm@dual antennaFrequency: 2100MHz

Physical IndexPhysical Index Volume: 370×320×160mm （ H×W×D） Weight: 16.5kg Typical Power Consumption:

100W(1C)/125W(2C)/160W (3C) Power Supply: -48V DC Temperature Range: -40℃～ +55℃ Protection Class: IP65

Interface IndexInterface Index 2 * 1.25G CPRI Optical Interface

SDR R8840 320mm 160mm

370mm

Remote Radio Unit —— ZXSDR R8860

ZXSDR R8860 （ 1T2R）

Carrier Configuration: Support maximal: 6TRX or 4 carriers Support maximal: 4G1U

Output Power： 80W Receive Sensitivity: -113dBm[GSM]

-126.5dBm@sigle antenna[UMTS] -129.2dBm@dual antenna[UMTS] Frequency: 850MHz, 900MHz, 1800MHz, 1900MHz


2*1.25G CPRI Optical interface


Volume: 370×320×197mm （ H×W×D） Weight: 20Kg TPC: UMTS:1C: 155W/2C: 185W/3C: 210W/4C: 230W GSM: 200W(900M) /210W(1800M) GU: 4G1U 215 W Power Supply: -48V DC Temperature Range:-40℃～ +55℃ Protection Class: IP65


370mm

320mm

197mm

• Support GSM and UMTS.

R8860 Structure

R8860 Structure ADTR: Completes the function of transmitter by one

path and receiver by two paths, providing interface and control function.

PA: Provides amplification function during transmission for RF signal.

DFL: Provides receiving & transmitting combination and division function for RF signal, and provides low noise amplification function for signal. It includes duplexer by one path and receiving filter by one path.

RIE: Mainly completes the transition between PIB board test and monitoring interface signal.

PIB: Mainly completes electrically tuned antenna and tower amplifier AISG interface protection and DTR board interface signal transition.

RPDC: Supplied by DC power conversion.

R8860 InterfaceNo Label Interface

1 LC1Interface betweenBBU and RRU/RRU cascading interface

2 LC2Interface betweenBBU and RRU/RRU cascading interface

3 AISG AISG device interface

4 MonExternal equipment interface (monitoring,LMT, etc.)

5 DC IN Power interface

6 RX Interface to receive diversity RF cable

7 RX/TX Interface to transmit / receive main diversity RF cable

8 RXout Frequency expansion interface

9 RXin Frequency expansion interface

10 GND Machine Grounding


RRU


Always on: The board is in resetting or starting status.Flashing at 1Hz: The board is normally running.Flashing at 5Hz: The board is downloading version.Off: Self test fails.


Flash in 5Hz: critical or severe alarmFlash in 1Hz: normal or minor alarmOff: The board has no alarm.

Link Green Optical link indicator

On: normal fiber connection

Off: disconnected fiberFlash in 5Hz: consider this link as clock reference source, and phase-locked loop in fast capture status

Flash in 0.25Hz: consider this link as clock reference source, and phase-locked loop in trace status

RF OrangeRF working status indicator

Off: without RF out putOn: with RF out put

R8860 Indicators

Remote Radio Unit – R8880A

Performance IndexPerformance Index Support maximal 2 X 3 C Output Power: 2 X 60W Receive Sensitivity: -126.5dBm@sigle antenna -129.2dBm@dual antennaTransmitter Frequency: 2110MHz~2170MHZReceiver Frequency: 1920MHz~1980MHZ

Physical IndexPhysical Index Volume: 420×340×140mm （ H×W×D） Weight: < 20kg Typical Power Consumption:

S1:135W(Single PA), 215W(double PA)S2:195W(Single PA), 330W(double PA)S3:240W(Single PA), 420W(double PA)

Power Supply: -48V DC Temperature Range: -40℃～ +55℃ Protection Class: IP65

Interface IndexInterface Index 2 * 1.2288G Optical Interface

SDR R8880A420mm 140mm

340mm

Remote Radio Unit —— ZXSDR R8882

320mm

140mm

450mm

Carrier Configuration: Support maximal [UMTS]: 2×3C carriers Support maximal [GSM]: 2×4 TRX Support maximal [GU]: 2×4G1U or 2×2G2U

Output Power： 2×60W Receive Sensitivity: -113.5dBm[GSM]

-113.5dBm@sigle antenna[UMTS] -129.2dBm@dual antenna[UMTS]

Frequency: 900M/1800M/2100MHz


Volume: 450×320×140mm （ H×W×D ） Weight: 20Kg TPC ： 684W（ S3/3/3）Power Supply: -48V DC, 110V AC, 220V ACTemperature Range: -40℃～ +55℃Protection Class: IP65


ZXSDR R8882 (2T4R)

2*1.25G CPRI Optical interface (2.5G and 3.072G are also applicable)


• Support GSM & UMTS

R8882 Structure

R8882 Structure TRM: Finish the function of transmitter and receiver, which can provide the interface and control function.

PAD: Provide the amplification function of RF signals on two channels.

FLD: Provide the function of reception, transmitting, combination, and division of RF signals. It comprises of two duplexers and two receiving filters.

EPB : EMC protection at power, monitor interface, and AISG interface.

R8882 InterfaceNo Label Interface

1 PWR Power jack

2 EAM External monitor interface

3 AISG AISG device interface

4 OTP1 BBU-RRU interface / RRU cascading interface

5 OTP2 BBU-RRU interface / RRU cascading interface

6 ANT1TX/RX Antenna tx/rx interface on channel 1

7 ANT2RX Diversity receiving antenna interface on channel 1

8 ANT3RX Diversity receiving antenna interface on channel 2

9 ANT4TX/RX Antenna tx/rx interface on channel 2

10 - PE interface

1 2 3 4 5

9876

10


R8882

RUN Green Running indication

Always on: The board is in resetting or starting status.Flashing at 1Hz: The board is normally running.Flashing at 5Hz: The board is downloading version.Off: Self test fails.


Flash in 5Hz: major or critical alarmFlash in 1Hz: warning or minor alarmOff: indicates no fault or resetting, starting or downloading the version.

LINK1 GreenStatus indication at optical interface 0

ON: connection is ok at optical interface 0Off: disconnected fiberFlash in 5Hz: consider this link as clock reference source, and phase-locked loop in fast capture statusFlash in 0.25Hz: consider this link as clock reference source, and phase-locked loop in trace status

LINK2 GreenStatus indication at optical interface 1

The same meaning as LINK1

VSWR1 Green TX0 standing wave indication

ON: TX0 standing wave is okOFF: TX0 standing wave is improper

VSWR2 Green TX0 standing wave indication The same meaning as VSWR1

R8882 Indicators

Rapidly Networking Based on Distributed Base Station

DesertSnowfield RainstormRain forest

Less space required, flexible installation

Compact design, light and small

High reliability, suitable for terrible environment

Light, easy for installation, save project cost and Shorten the time for building network .

Flexible networking. 50 ％ high-efficient PA to reduce

power consumption Natural cooling design, 0dB noise Flexible power supply: AC/DC or

Remote power IP65 protection class to withstand

terrible

Networking Topology of RRU

ZTE provides flexible networking for distributed site such as star, chain, loop and mix topology to meet demands for customers.

Integrated Indoor Macro Site — ZXSDR BS8800

Radio Unit

BasebandUnit

Radio Unit: RSU40/ RSU60/RSU82

Physical IndexPhysical Index Volume: 950×600×450mm （ H×W×D) (Main Cabinet) Weight: main cabinet<135 KG, Auxiliary Cabinet <115KG[with RSU40/RSU60] TPC:

RSU82 (850/900M): 1110W[S444] RSU40 (2100M): 780W[S222]

Power Supply: -48V DC (-40~-57V DC)

Performance IndexPerformance Index Processing Capability(with Auxiliary Cabinet):

GSM 36TRX + UMTS12CS Base Band Processing Capability:

Uplink: 960CE (192CE*5BPC)Downlink: 960CE (192CE*5BPC)

Output Power: 60W/80W/2*80W(900/1800M), 2*60W(2100M) Receive Sensitivity:

GSM -113dBm@single antennaUMTS -126.5dBm@single antenna

-129.2dBm@dual antenna

Interface IndexInterface IndexAibs/Iub Interface:

8*E1/T1(Can expand to 16)1*GE/FE Optical or 1*GE/FE Electrical

To remote RRU: 12 *1.25Gbps CPRI Optical Interface

SDR BS8800

BU: B8200

Main Cabinet

BS8800 Hardware Structure Radio Unit:

RSU40, RSU60,RSU82 Wiring Duct:

Used to walk wiring in rack, such as fiber or SFP cable between BBU and RSU40/60/82.

Power Distribution Module: Passive power

distribution unit Transmission Device:

1U slot, it can provide built-in transmission or microwave devices to save operators’ investment.

FAN Used to perform heat

dissipation for RSU modules, 6 fans in total

950mm

600mm

450 mm

Radio Unit

Power Distribution Module

WiringDuct

TransmissionDevice Ventilation

Base Band

Fan

BS8800 ——Easy to Stack, Easy to expand

1650mm1650mm

600mm600mm

Power DistributionModule

Cable Chute

Base Band Unit

950mm950mmPower DistributionModule

Cable Chute

Radio Unit

Auxiliary Cabinet Fan

Radio Unit

Ventilation

Main Cabinet

950mm950mm

600mm600mm

600mm600mm

450 mm450 mm

700mm700mm

Ventilation

48





Integrated Outdoor Macro Site – ZXSDR BS8900A

Radio Unit:RSU40/60/82

Physical IndexPhysical Index Volume: 1600×600×600mm （ H×W×D）

(Standard Configuration) Weight: 185kg (BC8910A+RC8911A)TPC:

RSU82 (900M): 1285W[S444] RSU40 (2100M): 865W[S222]

Power Supply: -48V DC, 220V AC, 380V AC

Performance IndexPerformance Index Processing Capability:

GSM 36TRX + UMTS12CSOutput Power:

60W/80W Receive Sensitivity:

GSM -113dBm@single antennaUMTS -126.5dBm@single antenna

-129.2dBm@dual antenna

Interface IndexInterface Index Abis/Iub interface:

8*E1/T1(Can expand to 16)1*GE Optical or 1*GE/FE Electrical2*STM-1

To RRU: 12 *1.25Gbps CPRI Optical interface

ZXSDR BS8900ABase Band Unit:B8200

ZXSDR BS8900A Hardware Structure Radio Unit:

RSU40, RSU60, RSU82 6*RSU can be supported in

maximum Power Distribution Module:

Passive power distribution unit Heat Exchanger:

Perform heat dissipation for base band, power and transmission unit

Transmission Device: 6U slot, it can provide built-in

transmission or microwave devices to save operators’ investment.

Base Band Unit: B8200

AC /DC Unit: Provide -48V DC power for

BS8900, it contains monitor unit and rectifier unit

Battery Cabinet: the nominal capacity of the

built-in batteries is 300Ah

Heat Exchanger

TransmissionDevice

Base Band Unit

AC/DC Unit

Battery

Power Distribution Module

Radio Unit

BS8900A Sub-Rack Introduction

BC8910A RC8910A RC8911A PC8910A

BasebandCabinet

RadioCabinet

BatteryCabinet

ZXSDR BS8900A Component Module

Dimension (H*W*D) for BC8910A, RC8910A, RC8911A and PC8910A:

800*600*600mm Weight(without battery):

BC8910A: 82Kg RC8910A: 139Kg RC8911A: 99Kg PC8910A: 47Kg

Power: 220V AC (130V ~ 300V

AC) -48V DC (-57 V DC ~ -

40V DC) Temperature:

-40°C ~ +55°C Protection: IP55

800mm

600mm

600mm

General IndicesGeneral Indices

52





Integrated Micro Outdoor — SDR BS8906

Radio Unit:RSU40/60

Physical IndexPhysical Index Volume: 650 × 320 × 480 mm （ H×W×D） Weight: 52kg TPC:RSU60(DC): 445W/900M; 460W/1800M(S4)Power Supply: -48V DC, 110~240V AC

Performance IndexPerformance IndexProcessing Capability:

GSM: 60 carriers; UMTS: 30CS (with outdoor RRU); GU: 4 TRX + 1 C or 2 TRX + 2 C

Base Band Processing Capability:Same as B8200

Output Power: RSU60: GMSK 80W / 8PSK 50W/UMTS 80W RSU40: 60W

Receive Sensitivity:GSM: -113dBm @ single antennaUMTS: -126.5dBm @ single antenna

-129.2dBm @ dual antenna

Interface IndexInterface IndexAbis/Iub Interface:

8*E1/T1(Can expand to 16)1*GE/FE Optical or 1*GE/FE Electrical

To RRU: 12 *1.25Gbps CPRI Optical Interface

SDR BS8906

B8200

BS8906 can be connected with RRU for outdoor BBU solution.

BS8906 Hardware Structure FCE： Fan Control Element

LPU ： Line Lightning Protection Unit

PSU： Power System Unit

APM： AC Protection Module

DPM： DC Protection Module

PM

SA

CC

BPC

FS

FAN

APM/DPM

LPU/SDH

/微微IDU

FCEPSU

RSU

Content


GU Convergence Network Architecture

GSM Base Station

GSM BSC

UMTS RNC

UMTS Node B

IP/SDH Backbone

IP/SDH Backbone

Independent GSM RAN

Independent UMTS RAN

GSM NMS

UMTS NMS

Dual-mode base staion controller

IP/SDH Backbone

Convergence RAN

G/U unified NMS

NetNumen unified NMS

Multi-mode RRUMulti dual mode BBUs form baseband group

Remote RRU

Optical fiber transmission is adopted unifiedly

Multi-mode base station

Multi-mode RRU

Convergence Network Evolving to LTEGSM Working Mode

GSM

BBU in SDR platform BBU in SDR platform

Same architecture for GSM/LTE, universal hardware

BBU supports LTE by adding baseband board

GSM/LTE dual-mode RRU evolution

Lower TCO Higher reliability Faster deployment

GSM RRU

GSM /LTE RRU

(Same Frequency band)

LTE RRU(Different Frequency band)

异异异异异 RRU异异异异异 RRU

GSM LTE

Co-shelf, co-rear board, co-power Co-clock, co-transmission GSM/LTE BBU can be flexibly configured as per requirements

Co-Platform for Multi-Mode

Co-platform for multi-mode

Feature Advantage

G/L Working ModeLTE RRU(Different Frequency band)

GSMGSMGSMGSMGSMGSM

GSMGSMGSMGSM

GSMGSM

UMTS UMTS

UMTS

UMTS

Carrier and Power Software Configurable

UMTSUMTSUMTS

Carrier and Power Software Configurable No e

xtra i

nser

t loss

GSM900

UMTS900

Traditional Solution

SDR Solution

Flexible GSM900/UMTS900 Capacity Reframing

The sum of each TRX configured maximum output power is bigger than PA maximum output power. In the area with little traffic, BCCH carrier power configuration can be appropriately added by taking use of dynamic power, and the remaining power is dynamically real-time shared among all TCH carriers to enlarge coverage and reduce site quantity.

Dynamic Power Sharing Enlarging Site Coverage

30w

20w

30w

15w

20w

BCCH carrierTCH carrier ATCH carrier B

30w

30w

40w

5w

30w


The sum of each TRX maximum transmission power is no bigger than PA maximum output power

User A

User B

The sum of each TRX maximum transmission power(100W) is bigger than PA maximum output power (80W).

User A

User B As user moves, each TRX transmission power dynamically adjusts.

Dynamic Power Sharing

30w

30w

40w

15w

20w


Static Power Configuration

All IP-based Network Improving Transmission Efficiency

iBSC

SDR Base Station

MGW1

SGSN2SGSN1

MSC Server

GGSN

TC Pool

IP Ater

MGW2

IP AFlex A

IP GbFlex Gb

IP Abis

All IP baseband processing unit

All IP-based network is the All IP-based network is the trend for mobile communication. trend for mobile communication.

SDR Base

Station

All IP-based network has better transmission efficiency.

Transmission efficiency increases by

87%

TDM E1

IP over E1

15 TRX/E1

23 TRX/2MbpsIP over FE

28 TRX/2Mbps

GE or IP over E1 transmission Mute frame and IP head compression

One Logical Cell with Multi RRU TechnologyBBU + RRU remote networking suits coverage scenes such as roads, bridges, villages along the river and so on.

Split cabinet, only BBU installed

Multi-RRU co-cell, improving wireless utilization

Cell A Cell ACell A Cell A

Cell ACell A

One logical Cell with Multi RRU dramatically reduces inter-cell switch, and improves wireless utilization. Cell A Cell A

•BCCH carrier power unchanged•Increasing TCH carrier, using reserved frequency point to absorb traffic•Not changing existing network frequency planning

110

12.5 0 029.8

0 0

110

35.712.8

0

73.2 72.8 63.9

0

50

100

0km ph 400km ph 600kmph 800km ph

Remote expansionSoftware

configurationMeasured UL datarate (Kpbs) of high speed railway scenario

Multi RRU and AFC disableOnly AFC enable

Only Multi RRU enable

Multi RRU and AFC enable

SDR-Based Network Effectively Reducing Energy Consumption

Typical consumption for S444

725W

RRURRU

BBU

Multi-carrier PA

TRX1

TRX2

TRX3

TRX4

TRX5

Highly Efficient PA Improving Overall Efficiency

Antenna-Close Installation Avoiding Feeder Loss

Intelligent Software Power Saving Technology

Networking Mode Saving Energy Consumption

PA module adoptes Doherty, DPD and multi-carrier PA, increasing overall efficiency to over 20%.

RRU is installed close to antenna, saving feeder loss. For the same coverage requirement, it reduces RF output power, hence lowering power consumption.

It supports some latest energy saving technologies such as intelligent voltage adjustment, carrier priority control and RRU module shutdown.

RRU adopts natual cooling system, BBU features in low power consumption and concentration which requires less equipment room and greatly reduces corollary equipments and air-conditioner’s power consumption.

Constructing network by using SDR-based Base Station averagely saves single site’s energy by over 40%.

1250W

Traditional Base Station

Multi-carrier Base Station

Power consumption descreased by 42%

TRX6

Diverse Networking, tridimensional Coverage Coverage Challenge

in Dense Urban

Complex environment of buildingsBind area in buildingsFrequent handovers

Tridimensional Coverage by ZTE SDR

Macro site and distributed site combined togetherParticular coverage for special area1-6 cells deployment in single site

Rapid Installation and Simple Maintenance

RRU flexible installationMacro base station without back board

On the pole

One person

on the wall Installation by the wall

All modules

operation at front,

easy maintenance

BBU saves space greatly Modularized designation for many application

19 inch width, 2U

height.

On transmission

rack or macro base

station

Directly on the

wall

BS8900 modularized

designation, flexible

subcabinet configuration Integrated cabinet in

suburb Horizontal

installation in

weight limited

area

WR SS02 E1 1 ZXSDR Base Station Structure and Principle 65p

Documents

Transcript of WR SS02 E1 1 ZXSDR Base Station Structure and Principle 65p