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Zte ZXSDR R8872A, Product Description

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Chapter 3

Networking and Maintenance

Table of Contents

Baseband-RF Networking ..........................................................................................3-1

Operation and Maintenance .......................................................................................3-2

3.1 Baseband-RF Networking

The ZXSDR R8872A supports star and line networks with the

BBU

. The ZXSDR R8872A

and the BBU are connected with optical fibers.

l

Star network

Each

RRU

has a point-to-point connection with the BBU, see

Figure 3-1

. This network

topology is reliable but occupies more transmission resources. It is applicable to

densely-populated areas.

Figure 3-1 Star Network

l

Line network

Multiple

RRU

s are connected to form a link, and then the link is connected to the

BBU, see

Figure 3-2

. This network topology occupies less transmission resources but

is less reliable than the star network topology. It is applicable to sparsely-populated

areas.

Figure 3-2 Line Network

3-1

SJ-20141127113509-001|2016-12-05 (R1.4)

ZTE Proprietary and Confidential

Summary of Contents for ZXSDR R8872A

Page 1: ...ote Radio Unit Product Description Hardware Version HV1 0 ZTE CORPORATION No 55 Hi tech Road South ShenZhen P R China Postcode 518057 Tel 86 755 26771900 Fax 86 755 26770801 URL http support zte com cn E mail 800 zte com cn ...

Page 2: ...ghts or applications covering the subject matter of this document Except as expressly provided in any written license between ZTE CORPORATION and its licensee the user of this document shall not acquire any license to the subject matter herein ZTE CORPORATION reserves the right to upgrade or make technical change to this product without further notice Users may visit the ZTE technical support webs...

Page 3: ...pter 3 Networking and Maintenance 3 1 3 1 Baseband RF Networking 3 1 3 2 Operation and Maintenance 3 2 Chapter 4 Technical Specifications 4 1 4 1 Physical Specifications 4 1 4 2 Operating Environment 4 1 4 3 Power Supply 4 2 4 4 Performance 4 2 4 5 Reliability 4 5 4 6 Electromagnetic Compatibility 4 6 Glossary I I SJ 20141127113509 001 2016 12 05 R1 4 ZTE Proprietary and Confidential ...

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Page 5: ... R8872A Chapter 2 System Architecture Describes the hardware architecture and software architecture of the ZXSDR R8872A Chapter 3 Networking and Maintenance Describes the baseband RF networking modes and operation and maintenance of the ZXSDR R8872A Chapter 4 Technical Specifications Describes the technical specifications of the ZXSDR R8872A Related Documentation The following documentation is rel...

Page 6: ...This page intentionally left blank II SJ 20141127113509 001 2016 12 05 R1 4 ZTE Proprietary and Confidential ...

Page 7: ... ZXSDR R8872A Figure 1 1 External View Table of Contents Functions 1 1 Features 1 2 1 1 Functions The ZXSDR R8872A provides the following functions l Various bandwidth configurations of 1 4 3 5 10 15 20 MHz l Frequency band 850 900 1800 1900 MHz l Support 2T4R in one box which can optimize spectrum efficiency greatly and improve network uplink performance 1 1 SJ 20141127113509 001 2016 12 05 R1 4 ...

Page 8: ...h enables it to utilize more frequency spectrum resources Design of 2T4R channels improves the spectrum efficiency It provides a 2 80 W transmission power and can be applied in urban areas with dense population l Convenient network construction It supports GSM CDMA LTE or mixed technologies which ensure the smooth evolution from GSM CDMA to LTE l Low TCO Advanced technologies including Doherty PA ...

Page 9: ...nd receiver functions and provides interfaces and control l Duplex filters It provides the functions of RF signal combination and splitting and filtering l PA It transmits and amplifies two channels of RF signals This module consists of two PAs l Power supply It provides the system power supply l Protecting interface board Integrated lightning protect unit for the AISG RS485 and dry contacts 2 1 S...

Page 10: ...rfaces for devices to access the Linux operating system à Linux It is the operating system platform à OSS It is the support layer in the entire software architecture It provides a hardware independent platform for system software operation and provides some basic software functions including scheduling timer memory management inter module communication sequence control monitoring alarms and logs l...

Page 11: ...BBU see Figure 3 1 This network topology is reliable but occupies more transmission resources It is applicable to densely populated areas Figure 3 1 Star Network l Line network Multiple RRUs are connected to form a link and then the link is connected to the BBU see Figure 3 2 This network topology occupies less transmission resources but is less reliable than the star network topology It is applic...

Page 12: ...PRI interface see Figure 3 3 Multiple base stations can be maintained through one EMS Figure 3 3 Remote Maintenance Mode Local Maintenance Local maintenance is implemented through the LMT which is installed on a PC directly connected to the ZXSDR R8872A with an Ethernet cable see Figure 3 4 The LMT is used to maintain a single base station Figure 3 4 Local Maintenance Mode 3 2 SJ 20141127113509 00...

Page 13: ...Specification Dimensions H W D 415 mm 352 mm 137 mm Weight 23 kg Color Silver gray 4 2 Operating Environment For the operating environment requirements for the ZXSDR R8872A refer to Table 4 2 Table 4 2 Operating Environment Requirements Item Specification Temperature 40 to 55 Relative humidity 5 to 100 Waterproof and dustproof level IP65 Grounding 5 Ω In areas where the number of thunderstorm days...

Page 14: ...on 575 W S9000 GSM S2 x 2 x 20 W LTE 2 x 40 W Typical power consumption 365 W Peak power consumption 575 W S8500 LTE 2 x 80 W Typical power consumption 315 W Peak power consumption 575 W Power consump tion S1900 LTE 2 x 80 W Typical power consumption 290 W Peak power consumption 560 W Lightening pro tection 20 kA 4 4 Performance The ZXSDR R8872A supports four frequency band models l ZXSDR R8872A S...

Page 15: ... Four antennas N A GSM single mode 2 x 4 TRXs UMTS single mode 2 x 2 CSs UMTS LTE multi mode UMTS 2 x 2 CSs and LTE 1 x 10 M 2T2R Cell GSM LTE multi mode GSM 2 x 4 TRXs and LTE 1 x 10 M 2T2R Cell GSM UMTS multi mode GSM 2 x 4 TRXs and UMTS 2 x 2 CSs Capacity GSM UMTS LTE multi mode GSM 2 x 2 TRXs UMTS 2 x 1 CSs and LTE 1x10 MIMO 2T2R Cell Transmis sion CPRI interface 2 x 6 144 Gbps Table 4 5 ZXSDR...

Page 16: ...S1800 Performance Requirements Item Specification Operating frequency band 1800 MHz l Tx 1805 1880 MHz l Rx 1710 1785 MHz TOC output power 2 x 80 W Bandwidth LTE 1 4 MHz 3 MHz 5 MHz 10 MHz and 20 MHz GSM Single antenna 113 5 dBm Dual antennas 115 5 dBm Four antennas N A Receiving sensitivity LTE Single antenna 106 4 dBm Dual antennas 109 2 dBm Four antennas 112 dBm GSM single mode 2 x 6 TRXs LTE s...

Page 17: ...as N A GSM single mode 2 x 4 TRXs UMTS single mode 2 x 2 CSs UMTS LTE multi mode UMTS 2 x 2 CSs and LTE 1 x 10 MIMO 2T2R Cell GSM LTE multi mode GSM 2 x 4 TRXs and LTE 1 x 10 MIMO 2T2R Cell GSM UMTS multi mode GSM 2 x 4 TRXs and UMTS 2 x 2 CSs Capacity GSM UMTS LTE multi mode GSM 2 x 2 TRXs UMTS 2 x 1 CSs and LTE 1 x 10 MIMO 2T2R Cell Transmis sion CPRI interface 2 x 6 144 Gbps 4 5 Reliability For...

Page 18: ...irements of the ZXSDR R8872A refer to Table 4 9 Table 4 9 Electromagnetic Compatibility Requirements Item Specification ESD immunity Contact discharge 6000 V Air discharge 8000 V Surge immunity DC power interface cable grounding 2000 V 4 6 SJ 20141127113509 001 2016 12 05 R1 4 ZTE Proprietary and Confidential ...

Page 19: ...S Element Management System GSM Global System for Mobile Communications IP Internet Protocol LMT Local Maintenance Terminal LTE Long Term Evolution MCPA Multi Carrier Power Amplifier MTBF Mean Time Between Failures MTTR Mean Time To Recovery OAM Operating and Maintenance OSS Operation Support Subsystem PA Power Amplifier I SJ 20141127113509 001 2016 12 05 R1 4 ZTE Proprietary and Confidential ...

Page 20: ... R8872A Product Description PC Personal Computer RRU Remote Radio Unit TCO Total Cost of Ownership TCP Transmission Control Protocol II SJ 20141127113509 001 2016 12 05 R1 4 ZTE Proprietary and Confidential ...

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