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description
ZXSDR FDD GUL BS8700
Product Description
UR13
ZXSDR FDD GUL BS8700 Product Description
ZTE Confidential Proprietary 1
ZXSDR FDD GUL BS8700 Product Description
Version Date Author Reviewer Notes
V1.00 2014-04-03 Yang Lisha Chen Yong, Yang
Xu, Xin Shengli
First release, information of GSM, UMTS and
FDD LTE multi-mode are all included
© 2014 ZTE Corporation. All rights reserved.
ZTE CONFIDENTIAL: This document contains proprietary information of ZTE and is not to be disclosed or used
without the prior written permission of ZTE.
Due to update and improvement of ZTE products and technologies, information in this document is subjected to
change without notice.
ZXSDR FDD GUL BS8700 Product Description
2 ZTE Confidential Proprietary
TABLE OF CONTENTS
1 Product Overview .............................................................................................. 9
1.1 Introduction .......................................................................................................... 9
1.2 Benefits .............................................................................................................. 10
1.3 Application Scenarios ........................................................................................ 12
2 Product Architecture ....................................................................................... 12
2.1 Physical Structure .............................................................................................. 12
2.2 Hardware Architecture ....................................................................................... 13
2.2.1 Baseband Unit ................................................................................................... 14
2.2.2 Radio Unit .......................................................................................................... 30
2.3 Software Architecture ......................................................................................... 48
3 Functionality .................................................................................................... 49
3.1 Basic Functions ................................................................................................. 49
3.2 Service Functions .............................................................................................. 50
4 Technical Specifications ................................................................................. 51
4.1 Physical Indices ................................................................................................. 51
4.2 Performance Indices .......................................................................................... 52
4.2.1 BBU Capacity .................................................................................................... 52
4.2.2 RRU Capacity .................................................................................................... 53
4.2.3 RRU Frequency Spectrum ................................................................................. 55
4.2.4 RRU Output Power ............................................................................................ 57
4.2.5 Static Receiving Sensitivity ................................................................................ 57
4.2.6 LTE RRU IBW .................................................................................................... 58
4.3 Power Indices .................................................................................................... 59
4.3.1 Power Supply ..................................................................................................... 59
4.3.2 Power Consumption ........................................................................................... 60
4.4 Interface Indices ................................................................................................ 63
4.5 Environment Indices .......................................................................................... 64
4.6 Electromagnetic Compatibility Indices ................................................................ 65
4.7 Reliability Indices ............................................................................................... 65
5 Configurations ................................................................................................. 66
5.1 Baseband Unit Configuration Principles ............................................................. 66
5.2 Radio Unit Configuration Principles .................................................................... 68
5.2.1 GSM Single Mode Configuration Principles ........................................................ 68
5.2.2 UMTS Single Mode Configuration Principles ...................................................... 69
5.2.3 LTE Single Mode Configuration Principles ......................................................... 70
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5.2.4 GSM/UMTS Dual-mode Network in the Same Spectrum ................................... 72
5.2.5 GSM/UMTS Dual-mode Network in Different Spectrums ................................... 73
5.2.6 GSM/LTE Dual-mode in 900M/1800MHz Spectrums ......................................... 73
5.2.7 UMTS/LTE Dual-mode in 900M/2100MHz Spectrums ....................................... 73
6 Ancillary Equipment for BS8700 .................................................................... 74
6.1 Site Support Cabinet Description ....................................................................... 74
6.1.1 Type 1 — Cabinet BC8910B .............................................................................. 74
6.1.2 Type 2 — Cabinet BC8910A .............................................................................. 75
6.1.3 Type 3 — ZXSDR BS8906 ................................................................................. 76
6.2 Physical Indices ................................................................................................. 77
7 Abbreviation .................................................................................................... 79
8 Attachment 1_E_UTRA Operation Band ........................................................ 81
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FIGURES
Figure 1-1 Networking Diagram (BS8700, RNC/BSC, MME/S-GW) ...................................10
Figure 1-2 BS8700 Application Scenarios ..........................................................................12
Figure 2-1 Example of ZXSDR BS8700 Physical Structure ................................................13
Figure 2-2 BS8700 Hardware Structure .............................................................................13
Figure 2-3 Baseband Unit -- ZXSDR B8200 .......................................................................14
Figure 2-4 CC Panel ..........................................................................................................15
Figure 2-5 UBPG/UBPG3 Panel ........................................................................................18
Figure 2-6 BPK_e1/BPK_e/BPK_d Panel ..........................................................................19
Figure 2-7 BPL/BPL1/BPN0 Panel .....................................................................................20
Figure 2-8 FS Panel ...........................................................................................................22
Figure 2-9 SA Panel...........................................................................................................24
Figure 2-10 SE Panel .........................................................................................................25
Figure 2-11 UES Panel ......................................................................................................25
Figure 2-12 UCI/UCI-C Panel ............................................................................................26
Figure 2-13 TAM Panel ......................................................................................................27
Figure 2-14 PM Panel ........................................................................................................28
Figure 2-15 FAM Panel ......................................................................................................29
Figure 2-16 R8861 Physical Appearance ...........................................................................30
Figure 2-17 R8861 External Interfaces ..............................................................................31
Figure 2-18 R8862 Physical Appearance ...........................................................................32
Figure 2-19 R8862 External Interfaces ..............................................................................33
Figure 2-20 R8862A Physical Appearance ........................................................................35
Figure 2-21 R8862A External Interfaces ............................................................................36
Figure 2-22 R8863 Physical Structure ...............................................................................38
Figure 2-23 R8863 External Interfaces ..............................................................................39
Figure 2-24 R8881 (120W) Physical Appearance ..............................................................40
Figure 2-25 R8881 (120W) External Interfaces ..................................................................41
Figure 2-26 R8882 (2*60W) Physical Appearance .............................................................43
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Figure 2-27 R8882 (2*40W) Physical Appearance .............................................................43
Figure 2-28 R8882 External Interface ................................................................................44
Figure 2-29 R8884 Physical Appearance ...........................................................................46
Figure 2-30 R8884 External Interface ................................................................................47
Figure 2-31 SDR BTS Software Structure ..........................................................................48
Figure 6-1 BBU Cabinet BC8910B/BC8911B .....................................................................75
Figure 6-2 Site Support Cabinet BC8910A (AC Power Supply) ..........................................76
Figure 6-3 Site Support Cabinet BC8910A (DC Power Supply) .........................................76
Figure 6-4 Physical Structure of ZXSDR BS8906 Standalone Cabinet ..............................77
TABLES
Table 2-1 Board List of ZXSDR B8200...............................................................................14
Table 2-2 CC Panel Interfaces ...........................................................................................16
Table 2-3 Key Indices of BPK_e1/BPK_e /BPK_d ..............................................................19
Table 2-4 Key Indices of BPL/BPL1/BPN0 .........................................................................21
Table 2-5 BPL/BPL1/BPN0 Panel interfaces ......................................................................21
Table 2-6 FS Panel Interfaces ...........................................................................................23
Table 2-7 SA Panel Interfaces ...........................................................................................24
Table 2-8 SE Panel Interfaces ...........................................................................................25
Table 2-9 UES Panel Interfaces .........................................................................................26
Table 2-10 UCI/UCI-C Panel Interface ...............................................................................26
Table 2-11 TAM Panel Interfaces.......................................................................................27
Table 2-12 PM Panel Interfaces .........................................................................................28
Table 2-13 R8861 Modules ................................................................................................30
Table 2-14 R8861 External Interfaces Description .............................................................31
Table 2-15 R8862 Modules ................................................................................................33
Table 2-16 R8862 External Interfaces Description .............................................................34
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Table 2-17 R8862A Modules .............................................................................................35
Table 2-18 R8862A External Interfaces Description ...........................................................36
Table 2-19 R8863 Modules ................................................................................................38
Table 2-20 R8863 External Interfaces Description .............................................................39
Table 2-21 R8881 (120W) Modules ...................................................................................41
Table 2-22 R8881 (120W) External Interfaces Description.................................................42
Table 2-23 R8882 Modules ................................................................................................43
Table 2-24 R8882 External Interfaces Description .............................................................45
Table 2-25 R8884 Modules ................................................................................................46
Table 2-26 R8884 External Interfaces Description .............................................................47
Table 4-1 Physical Indices .................................................................................................51
Table 4-2 B8200 Capacity .................................................................................................52
Table 4-3 R8861 Capacity .................................................................................................53
Table 4-4 R8862 Capacity .................................................................................................53
Table 4-5 R8862A Capacity ...............................................................................................54
Table 4-6 R8863 Capacity .................................................................................................54
Table 4-7 R8881 (120W) Capacity .....................................................................................54
Table 4-8 R8882 Capacity .................................................................................................54
Table 4-9 R8884 Capacity .................................................................................................54
Table 4-10 R8861 Frequency Spectrum ............................................................................55
Table 4-11 R8862 Frequency Spectrum ............................................................................55
Table 4-12 R8862A Frequency Spectrum ..........................................................................55
Table 4-13 R8863 Frequency Spectrum ............................................................................55
Table 4-14 R8881 (120W) Operation Frequency Bands ....................................................56
Table 4-15 R8882 (2*40W) Frequency Spectrum ..............................................................56
Table 4-16 R8882 (2*60W) Frequency Spectrum ..............................................................56
Table 4-17 R8884 Frequency Spectrum ............................................................................56
Table 4-18 RRU Output Power ..........................................................................................57
Table 4-19 BS8700 Static Receiver Sensitivity ..................................................................57
Table 4-20 R8861 Bandwidth Parameter in LTE Single Mode ...........................................58
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Table 4-21 R8862 Bandwidth Parameter in LTE Single Mode ...........................................58
Table 4-22 R8862A Bandwidth Parameter in LTE Single Mode .........................................58
Table 4-23 R8882 Bandwidth Parameter in LTE Single Mode ...........................................58
Table 4-24 R8884 Band Parameter in LTE Single Mode ....................................................59
Table 4-25 Power supply indices .......................................................................................59
Table 4-26 ZXSDR B8200 Power consumption .................................................................60
Table 4-27 RRU Power Consumption in UMTS Single Mode .............................................60
Table 4-28 RRU Power Consumption in GSM Single Mode ...............................................61
Table 4-29 R8861 Power Consumption in LTE Single Mode ..............................................61
Table 4-30 R8862 Power Consumption in LTE Single Mode ..............................................61
Table 4-31 R8862A Power Consumption in LTE Single Mode ...........................................61
Table 4-32 R8882 Power Consumption in LTE Single Mode ..............................................62
Table 4-33 R8884 Power Consumption in LTE Single Mode ..............................................62
Table 4-34 Power Consumption of RRU in GSM/UMTS/LTE Multi-Mode ...........................62
Table 4-35 ZXSDR BS8700 Interface Indices ....................................................................63
Table 4-36 ZXSDR BS8700 Environment Indices ..............................................................64
Table 4-37 ZXSDR BS8700 Electromagnetic Compatibility Indices ...................................65
Table 4-38 ZXSDR BS8700 Reliability Indices ...................................................................65
Table 5-1 B8200 Configuration ..........................................................................................66
Table 5-2 R8861 Typical Configuration in GSM Single Mode .............................................68
Table 5-3 R8862 Typical Configuration in GSM Single Mode .............................................68
Table 5-4 R8863 Typical Configuration in GSM Single Mode .............................................69
Table 5-5 R8881 (120W) Typical Configuration in GSM Single Mode ................................69
Table 5-6 R8861 Typical Configuration in UMTS Single Mode ...........................................69
Table 5-7 R8862 Typical Configuration in UMTS Single Mode ...........................................69
Table 5-8 R8863 Typical Configuration in UMTS Single Mode ...........................................70
Table 5-9 R8881 (120W) Typical Configuration in UMTS Single Mode ..............................70
Table 5-10 R8882 Typical Configuration in UMTS Single Mode .........................................70
Table 5-11 R8861 Configuration in LTE Single Mode ........................................................70
Table 5-12 R8862 Configuration in LTE Single Mode ........................................................70
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Table 5-13 R8862A Configuration in LTE Single Mode ......................................................71
Table 5-14 R8882 Configuration in LTE Single Mode ........................................................71
Table 5-15 R8884 Configuration in LTE Single Mode ........................................................71
Table 5-16 R8861 G/U Typical Configuration in G/U Dual-mode (Same Spectrum) ...........72
Table 5-17 R8862 G/U Typical Configuration in G/U Dual-mode (Same Spectrum) ...........72
Table 5-18 R8863 G/U Typical Configuration in G/U Dual-mode (Same Spectrum) ...........72
Table 5-19 R8881 (120W) Typical Configuration in G/U Dual-mode (Same Spectrum) ......72
Table 5-20 R8882 Typical Configuration in G/U Dual-mode (Same Spectrum) ..................72
Table 5-21 R8882 Typical Configuration in G/U Dual-mode (Different Spectrum) ..............73
Table 5-22 R8862/R8882 Typical Configuration in G/L Dual-mode ....................................73
Table 5-23 R8884 Typical Configuration in G/L Dual-mode (1800M+2600MHz) ................73
Table 5-24 R8862/R8882 Typical Configuration in U/L Dual-mode ....................................73
Table 6-1 BS8700 Site Support Cabinet Physical Indices ..................................................77
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1 Product Overview
1.1 Introduction
With the multi-mode era coming, ZTE, who is dedicated to providing comprehensive
network solutions and delivering the future-oriented quality network for the operators,
developed the ground breaking SDR unified platform with the essential feature to support
multi-mode and multi-band radio access.
Based on this innovative SDR platform, ZTE promotes a series of base stations to satisfy
different scenario requirements, including Indoor Macro, Outdoor Macro, Distributed,
Outdoor Micro, and Mini BTS.
These SDR-based serial base stations aim to design a unified network which can bring
the seamless experience to operators. In GSM, UMTS, LTE or mixed modes, it enables
operators to save CAPEX and OPEX significantly because they only need to deploy one
Uni-Radio Access Network, compared with the independent GSM, UMTS or LTE
network.
ZXSDR BS8700 (hereinafter BS8700) is the new generation of distributed software
defined radio (SDR) base station. It consists of BBU (B8200) and series of RRUs. It can
be flexibly configured as a GERAN BTS, a UTRAN Node B, a LTE eNodeB, or a G/U/L
multi-mode base station.
The networking diagram of BS8700 and RNC/BSC is shown in Figure 1-1
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Figure 1-1 Networking Diagram (BS8700, RNC/BSC, MME/S-GW)
1.2 Benefits
ZXSDR BS8700 provides the following benefits to operators.
Flexible Multi-Band Multi-Mode Networking, Smooth Evolution
ZXSDR BS8700 is the multi-carrier, multi-mode distributed base station of ZXSDR
BTS series. By adopting advanced MicroTCA platform and SDR technology,
BS8700 supports GPRS/EDGE/E-EDGE, UMTS/HSPA/HSPA+ and LTE
simultaneously. Its main advantage is the flexibility that brings the possibility to
support GSM, UMTS and LTE in a single base station.
RRU - Compact Design, Light, Easy Installation
ZTE released the magic series of RRUs, the new generation of SDR RRUs, to
comply with the further requirements for lower power consumption, smaller space
occupation and higher performance of products from operators, e.g. R8861 with 9.9
liters and 12 kg only.
BBU - Large Capacity, Easy Expansion
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To adapt to the rapid expansion of network development and the prosperity of
multi-mode network, the latest BBU boards are released with higher processing
capacity. The capacity indices of new boards surpass legacy ones, including RRC
connected user number, cell number, bandwidth and throughput. The increase in
the board capacity improves the overall capacity of BBU. In addition, the new
boards can be mixed used with the legacy ones, which provide flexibility during
upgrade.
RRU with Multiple TXs, Lower CAPEX and Higher Performance
The RRUs in ZTE SDR family consist of a variety of transmitter number, e.g. 1T2R,
2T4R, 3T6R, etc. This design provides more choices for customers to construct the
network. RRUs of 2T4R and 3T6R are illustrated as follows.
ZTE’s particular 2T4R RRU supports 2 sectors in GSM/UMTS mode or 2T4R in
LTE mode. In the former case, one 2T4R RRU serves as two cells and fewer RRUs
are required in the network construction. In the latter case, the spectrum efficiency
is optimized and the network uplink performance is improved.
For R8863 with three sectors, it enables operators to uses only one R8863 module
instead of three RRUs for one three-cell site. Higher integration leads to fewer
modules, less space, lower load-bearing requirements and faster installation
procedure.
RRU with Full Working Bandwidth Capability, High Resource Utilization
To meet the growing demands for wide working bandwidth, RRUs with full working
bandwidth are planned and released. For frequency spectrums become scarce,
resources allocated for operators tend to be characterized with fragmentation and
large span. RRUs with full working bandwidth integrate more spectrum resources
and help to decrease hardware investment exponentially. (This is the maximum
bandwidth of the RF modules. Please make the actual module as the standard.)
High PA Efficiency, Low Power Consumption
The PA of RRU achieves high efficiency with ZTE patent Doherty, Digital
Pre-Distortion (DPD) and Dynamic Power Trace (D-PT) technologies. The PA
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power supply voltage is dynamically adapted to the output power, reducing RU’s
power consumption.
1.3 Application Scenarios
BS8700 develops a new solution for GSM/UMTS/LTE multi-mode network and its
evolution. It can be applied in dense urban, urban, suburban, rural area, highway or
indoor environment, and fully meets operators’ requirements in different stages and
scenarios.
Typical application scenarios of BS8700 are shown in the following figure.
Figure 1-2 BS8700 Application Scenarios
2 Product Architecture
2.1 Physical Structure
ZXSDR BS8700 consists of the BBU (B8200) and RRUs. The physical structures of
ZXSDR BS8700 are shown in Figure 2-1 .
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Figure 2-1 Example of ZXSDR BS8700 Physical Structure
2.2 Hardware Architecture
BS8700 hardware architecture is shown in Figure 2-2 .
Figure 2-2 BS8700 Hardware Structure
Baseband Unit
SA/
SE
CC
Baseband
Processing
FS
(Optional
for LTE)
RRU
E1
GE/FE
Clock
Data
Control Signaling
CPRI
Antenna
Radio Unit
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The BBU of ZXSDR BS8700 can be configured in GSM/UMTS/LTE single mode or
multi-mode.
2.2.1 Baseband Unit
The baseband unit is named ZXSDR B8200 which can be inserted into the integrated
macro base station, connected to RRU in distributed base station. It is responsible for
processing the baseband signals. The following figure shows the hardware appearance
of B8200.
Figure 2-3 Baseband Unit -- ZXSDR B8200
The baseband unit consists of control & clock board, fabric switch board, baseband
processing board, site alarm board, site alarm extension board (optional), universal
Ethernet switch (optional), tower mounted amplifier control module (optional), power
module, and fan module.
Table 2-1 Board List of ZXSDR B8200
Board Name Function Description
CC0/CC2/CC16/CC17/CC16B
/CC17B/CCE1 Control & Clock Board
FS3/FS3A/FS5/FS5C Fabric Switch Board
UBPG/UBPG3 Universal Baseband Processing board for GSM
BPK_e1/BPK_e/BPK_d Base band Processing board for UMTS
BPL/BPL1/BPN0 Base band Processing board for LTE
SA Site Alarm Board
431
5
6
1. Power module (PM) 2. Site alarm board (SA) 3. Fabric switch board (FS) 4. Baseband processing
board (BP) 5. Fan array module (FAM) 6. Control & clock board (CC)
2
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SE Site alarm Extension Board
UES Universal Ethernet Switch Board
UCI Universal Clock Interface
TAM Tower mounted Amplifier control Module
PM Power Module
FAM Fan Array Module
2.2.1.1 Control & Clock Board (CC)
CC is control & clock board, used for control and management of baseband unit,
providing Ethernet and system clock. There are 3 categories of CC boards in order to
meet different application requirements, illustrated in the following figures.
Figure 2-4 CC Panel
CAT 1 (CC0/CC2):
CAT 2 (CC16/CC17/CC16B/CC17B):
CAT 3 (CCE1):
Note: The boards are differentiated by the label attached at the left-bottom corner, not included in
the above figures. The product you receive is subject to the actual object.
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Their key indices are specified in the following table.
CAT CAT 1
(CC0/CC2)
CAT 2
(CC16/CC17/CC16B/
CC17B)
CAT 3
(CCE1)
Mode G/U single mode
or dual-mode
G/U/L single mode or
multi-mode
LTE single mode
UMTS CNBAP
Processing
Capability
400/s CC16/CC17: 800/s
CC16B/CC17B:1500/s
N/A
LTE
Processing
Capability
N/A 10800
RRC_connected users
UL: 900Mbps/ DL:
900Mbps
10800
RRC_connected users
UL: 1.8Gbps/ DL:
2.5Gbps
Note: 1. the above table describes the maximum hardware capability. The actual capability is up to
the licenses configured. 2. There is the GPS module embedded in CC0/CC16/CC16B/CCE1 but
not in CC2/CC17/CC17B.
The panel interfaces are specified in the following table.
Table 2-2 CC Panel Interfaces
Interface Name Description
ETH0 Ethernet interface for Abis/Iub/S1/X2, self-adaptive
10M/100M/1000M electrical interface.
TX RX Ethernet interface for Abis/Iub/S1/X2, self-adaptive
100M/1000M optical interface.
EXT External communication port, connected to external
receiver for clock synchronization or cascading.
REF Connected to GPS signal interface, or 2 MHz BITS signal
interface.
USB (not included in
CAT 1) Used for software upgrade
DEBUG/CAS/LMT(CAT
1&2)
Ethernet interface used for cascading, debugging or local
maintenance, adapting interface of 10M/100M/1000M.
DEBUG/LMT(CAT3) Ethernet interface used for debugging or local
maintenance, adapting interface of 10M/100M/1000M.
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ETH1 (CAT3) Ethernet interface used for cascading, adapting interface
of 10M/100M/1000M electrical interface.
TX ETH2 RX (CAT 3) Ethernet interface for Abis/Iub/S1/X2, self-adaptive
1000M/10000M optical interface.
TX ETH3 RX (CAT 3) Ethernet interface for Abis/Iub/S1/X2, self-adaptive
1000M/10000M optical interface.
Note: Interfaces of ETH0 and TX RX are mutually exclusive in CAT1 and CAT2.
Their main functions are listed as follows:
Supports Ethernet switching function and implements data switching for service and
control flow within the system
Processes Abis/Iub/S1/X2 interface protocol
Manages software versions of boards and programmable components, and
supports local and remote software upgrade
Reads various hardware management marks in the system, including the rack
number, backplane type number, slot number, board function type, board version,
and board function configuration mark
Monitors, controls and maintains the base station system with LMT interface
Supervises the running status of each board within the system
Supports primary/slave switchover
Synchronizes with various external reference clocks, including IEEE1588, GPS
clock and the clock provided by BITS(2MHz/2Mbits). The CC can select one
according to the actual configuration
Generates and delivers the clock signal demanded by each part
Provides GPS receiver interface and manages the GPS receiver
Provides a real-time clock for system operation and maintenance and calibrates the
real-time clock
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Supports MicroTCA protocol based module management function
In addition, CAT 2 and CAT 3 have the following functions:
Supporting Synchronous Ethernet clock
Providing USB interface for software upgrade
2.2.1.2 Baseband Processing Board
There are 3 categories of baseband processing boards in order to meet different
application requirements:
1. UBPG /UBPG3
Both UBPG and UBPG3 are GSM baseband processing boards, processing the physical
layer protocol and frame protocol specified by 3GPP, illustrated in the following figure.
Figure 2-5 UBPG/UBPG3 Panel
Note: The boards are differentiated by the label attached at the left-bottom corner, not included in
the above figures. The product you receive is subject to the actual object.
UBPG supports 12 TRXs and UBPG3 supports 24 TRXs. Their main functions are listed
as follows:
Supports rate adaptation, channel coding, interleaving, encryption, TDMA shock
burst generation, GMSK/8PSK modulation, and IQ baseband digital signals output
Supports uplink IQ data receiving, receiver diversity combination, digital
demodulation (GMSK&8PSK, equilibrium), decryption, deinterleaving, demodulator,
rate adaptation, and transmits signals from GE Ethernet interfaces to CC board for
processing
Synchronizes radio link and processes transmission frame
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Measures parameters required in power control and handover
Supports diversified transmission and receiving
Communicates with CC via Ethernet interface
Reads all the hardware management identifiers, including the backplane type
number, slot number, board function type, board version, board function
configuration identifier, and the CPU serial number
2. BPK_e1/BPK_e/BPK_d
BPK_e1, BPK_e and BPK_d are all UMTS baseband processing boards, processing the
physical layer protocol and frame protocol specified by 3GPP, illustrated in the following
figure.
Figure 2-6 BPK_e1/BPK_e/BPK_d Panel
Note: The boards are differentiated by the label attached at the left-bottom corner, not included in
the above figures. The product you receive is subject to the actual object.
They provide the same functions but with different CE, cell processing capability and
data throughput. The key indices are specified in the following table.
Table 2-3 Key Indices of BPK_e1/BPK_e /BPK_d
Board BPK_e1 BPK_e BPK_d
Cells 6 6 12
CE No. DL192CE/UL19
2CE
DL384CE/UL384CE DL768CE/UL768CE
Data
Throughput
DL129.6Mbps/
UL34.5Mbps
DL259.2Mbps/
UL69Mbps
DL518.4Mbps/
UL138Mbps
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Note: The above table describes the maximum hardware capability. The actual capability is up to
the licenses configured.
Their main functions are listed as follows:
Achieves downlink baseband signal processing, including downlink data coding,
multiplexing, rate adaptation, channel mapping, spread spectrum and scrambling
power regulation and channel compositing
Achieves uplink baseband signal processing, including uplink data RAKE receiving,
demodulator, and transmits data to lub interface for processing
Supports A-RAKE receiving and UL interface cancellation
Supports radio link synchronization and frame processing
Measures parameters required in power control and handover
Supports softer handover and carrier diversity
Communicates with the CC via the Ethernet interface
Reads all the hardware management identifiers, including the backplane type
number, slot number, board function type, board version, board function
configuration identifier, and the CPU serial number
3. BPL/BPL1/BPN0
BPL/BPL1/BPN0 are all LTE baseband processing boards, processing the physical layer
protocol and frame protocol specified by 3GPP, illustrated in the following figure.
Figure 2-7 BPL/BPL1/BPN0 Panel
BPL/BPL1:
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BPN0:
Note: The boards are differentiated by the label attached at the left-bottom corner, not included in
the above figures. The product you receive is subject to the actual object.
They provide the same functions but with different CPRI interfaces, cell processing
capability and data throughput. The key indices are specified in the following table.
Table 2-4 Key Indices of BPL/BPL1/BPN0
Board BPL BPL1 BPN0
CPRI Interfaces 3 pairs 3 pairs 6 pairs
RRC_connected Users 1800 3600 3600
Cells (20MHz,
2T2R/2T4R)
3 6 6
Cells (20MHz, 4T4R) N/A 3 3
Data Throughput DL300Mbps/
UL150Mbps
DL600Mbps/
UL300Mbps
DL600Mbps/
UL300Mbps
Note: The above table describes the maximum hardware capability. The actual capability is up to
the licenses configured.
The panel interfaces are specified in the following table.
Table 2-5 BPL/BPL1/BPN0 Panel interfaces
Board Type Interface Description
BPL/BPL1 TX0 RX0 to TX2
RX2
3 pairs of CPRI optical/electrical interfaces,
connected to RRU
BPN0 TX0 RX0 to TX5
RX5
6 pairs of CPRI optical/electrical interfaces,
connected to RRU
Their main functions are listed as follows:
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Processes physical layer protocol
Provides uplink/downlink I/Q signal
Supports MAC, RLC and PDCP protocol
2.2.1.3 Fabric Switch Board (FS)
FS is fabric switch board which provides the optical interface between BBU and RRU and
processes the IQ signal. At least 1 board is configured by default for G/U dual-mode. FS
is optional in LTE single mode configuration. There are 4 types of FS boards, illustrated
in the following figure.
Figure 2-8 FS Panel
FS3:
FS3A:
FS5:
FS5C:
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Note: The boards are differentiated by the label attached at the left-bottom corner, not included in
the above figures. The product you receive is subject to the actual object.
The panel interfaces are specified in the following table.
Table 2-6 FS Panel Interfaces
Interface Name Description
TX0 RX0 - TX5 RX5 6 pairs of optical/electrical interfaces, connected to RRU
ETH (FS5C only) 10GE Ethernet interface, connected to BBU
Their main functions are listed as follows:
Receives the signal from the rear board in the downlink and retrieves the data and
timing.
Multiplexes the received data and retrieves I/Q signal
Supports I/Q mapping in the downlink and multiplexes I/Q signal to the optical
signals
Receives the I/Q in uplink and de-multiplexes/maps into I/Q signal
Transmits the multiplexed I/Q signal to baseband processing board
Exchanges the CPU interface signaling through HDLC interface with RU module
2.2.1.4 Site Alarm Board (SA/SE)
1. Site Alarm Board (SA)
SA is a site alarm board, illustrated in the following figure.
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Figure 2-9 SA Panel
Note: The product you receive is subject to the actual object.
There are two types of SA boards with different number of interfaces, as specified in the
following table.
Table 2-7 SA Panel Interfaces
Interface Name Type 1 (G/U/L) Type 2 (G/U)
- 8 E1/T1 interfaces 4 E1/T1 interfaces
6+2 dry contacts (6 input, 2
bidirectional)
14+2 dry contacts (14 input, 2
bidirectional)
1 RS485 interface 1 RS485 interface
1 RS232 interface 1 RS232 interface
The SA has the following functions:
Provides E1/T1 transmission interfaces
Provides site alarm monitoring interfaces
Provides FAM's alarm and rate control
Supports signal monitoring and interface lightning protection
The last E1 used for E1 transmission or BITS-2MHz/BITS-2Mbps clock input
2. Site alarm Extension Board (SE)
SE is site alarm extension board, and shares the bottom-right slot with baseband
processing board. It is used to extend the interface number if SA cannot fulfill the
requirements. The SE panel is illustrated in the following figure.
ZXSDR FDD GUL BS8700 Product Description
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Figure 2-10 SE Panel
Note: The product you receive is subject to the actual object.
There are two types of SE boards with different number of interfaces, as specified in the
following table.
Table 2-8 SE Panel Interfaces
Interface Name Type 1 (G/U/L) Type 2 (G/U)
- 8 E1/T1 interfaces 4 E1/T1 interfaces
6+2 dry contacts (6 input, 2
bidirectional)
14+2 dry contacts (14 input, 2
bidirectional)
1 RS485 interface 1 RS485 interface
1 RS232 interface 1 RS232 interface
The SE board provides the following functions:
E1/T1 transmission interfaces
Site alarm monitoring interfaces
2.2.1.5 Universal Ethernet Switch Board (UES)
UES is used for synchronized Ethernet and the panel is illustrated in the following
figure.
Figure 2-11 UES Panel
Note: The product you receive is subject to the actual object.
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26 ZTE Confidential Proprietary
Description of UES panel interfaces is specified in the table below:
Table 2-9 UES Panel Interfaces
Interface Name Description
X1-X2 The electrical interfaces for cascaded connection.
X3/UPLINK A compatible electrical interface for both cascaded connection
and uplink connection for link aggregation.
UPLINK An electrical or optical interface.
X4/UPLINK A compatible optical interface for both cascaded connection and
uplink connection for link aggregation.
UES has the following functions:
Supports L2 Ethernet switch
Supports synchronous Ethernet clock
2.2.1.6 Universal Clock Interface Board (UCI/UCI-C)
UCI is the RGPS clock interface board. There are two types of UCI boards: UCI and
UCI-C. UCI/UCI-C panel is illustrated in Figure 2-12.
Figure 2-12 UCI/UCI-C Panel
Note: The boards are differentiated by the label attached at the left-bottom corner, not included in
the above figures. The product you receive is subject to the actual object.
Description of UCI/UCI-C panel interfaces is shown in the following table:
Table 2-10 UCI/UCI-C Panel Interface
Interface Name Description
TX RX 125Mbps optical interface, connected to RGPS equipment for
ZXSDR FDD GUL BS8700 Product Description
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Interface Name Description
signal import. TX RX is only available on UCI.
EXT HDMI interface, providing 1PPS+TOD clock signal for the CC
board in the same BBU.
REF GLONASS/GPS antenna interface, only available on UCI-C.
Reserved on UCI.
DLINK0 HDMI interface, providing 2 outputs of 1PPS+TOD signals for CC
boards in other BBUs.
DLINK1 HDMI interface, providing 2 outputs of 1PPS+TOD signals for CC
boards in other BBUs.
2.2.1.7 Tower mounted Amplifier control Module (TAM)
TAM is used for tower mounted amplifier control when TMA is needed. Panel of TAM is
shown as following figure.
Figure 2-13 TAM Panel
Note: The product you receive is subject to the actual object.
The panel interfaces are specified in the table below.
Table 2-11 TAM Panel Interfaces
Interface Name Description
TA0 DC output voltage channel 0
TA1 DC output voltage channel 1
TA2 DC output voltage channel 2
TA3 DC output voltage channel 3
TA4 DC output voltage channel 4
TA5 DC output voltage channel 5
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The TAM has the following functions:
Supports working status detection of tower amplifier and reports alarm signals to
CC board
Provides power on and off for tower amplifier with +28V, +12V or +13V power
supply
Realizes the communication with CC board
Implements conversion, protection and filtering of power supply
Provides anti-lightning for power supply circuit
Implements software remote downloading and current threshold setting
2.2.1.8 Power Module (PM)
PM is the power module, illustrated in the following figure.
Figure 2-14 PM Panel
Note: The product you receive is subject to the actual object.
The panel interfaces are specified in the following table.
Table 2-12 PM Panel Interfaces
Interface Name Description
MON Debugging interface, RS232 interface
-48V/-48VRTN -48V input
ON/OFF Power switch, turning on/off 12V power to/from BBU
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The PM has the following functions:
Provides 16 internal interfaces for +12 V, +13V or +28V load power;
Provides 16 internal interfaces for +3.3 V management power;
Supports EMMC management;
Supports measurement and protection of input over-voltage/under-voltage;
Supports output over-current protection and load power management.
2.2.1.9 Fan Array Module (FAM)
FAM is fan array module. Its panel is illustrated in the following figure.
Figure 2-15 FAM Panel
Note: The product you receive is subject to the actual object.
The FAM has the follows functions:
Monitors and controls system temperature;
Monitors, controls, and reports the fan state.
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2.2.2 Radio Unit
Radio unit mainly processes the conversion between baseband signals and RF signals.
In ZTE GUL solution, the latest RRUs of ZXSDR R8861, R8862, R8862A, R8881 (120W),
R8882, R8863 and R8884 are introduced in this document. Details are illustrated as
follows.
2.2.2.1 R8861
R8861 is the latest SDR based remote RF unit (RRU), featuring 1-way transmitting and
2-way receiving. It supports GSM/UMTS/LTE indoor and outdoor applications. The
physical appearance is shown below.
Figure 2-16 R8861 Physical Appearance
It works on 900M/1800M/2100MHz. With SDR technology, R8861 supports GSM, UMTS,
LTE single mode or mixed mode through software configuration.
R8861 consists of transceiver (RTR), power amplifier and low noise amplifier (PA&LNA),
duplexer (DFL) and power modules (PWR). There are one TX/RX port and one RX port
for connecting antenna. Functions of each module are shown in Table 2-13.
Table 2-13 R8861 Modules
Module Main Functions
RTR Receives and transmits the signals of panel interfaces, digital
intermediate frequency and RF, and provides controls clock,
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Module Main Functions
power and power amplification.
PA & LNA Amplifies downlink RF signals and outputs them to the duplexer.
Low noise amplifier is included in this module.
DFL Consists of a duplexer, filter and their own low-noise amplifier
subsystems. It can receive diversities.
PWR Provides lightning protection for the AISG, RS485 and dry
contacts.
R8861 external interface locates in the bottom of the cabinet, as shown below. The
interface descriptions are listed also.
Figure 2-17 R8861 External Interfaces
Table 2-14 R8861 External Interfaces Description
S.N. Label Interface Interface Type/Connector
1 OPT1
BBU and RRU
Interfaces / RRU
cascading interface
LC-mode optical interface (IEC 874)
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2 OPT2 RRU cascading
interface LC-mode optical interface (IEC 874)
3 PWR Power input interface DC: 2-pin round connector (pin)
AC: 3-pin round connector (pin)
4 GND Protection
ground interface 16 mm
2 yellow/green round terminal
5 AISG/MON
AISG equipment
interface
External monitoring
interface &
LMT O&M Ethernet
interface
DB15 connector
6 ANT1
(TX/RX)
TX/RX
antenna
feeder interface
50Ω DIN-mode Connector
7 ANT2
(RX)
Receive antenna
feeder interface 50Ω DIN-mode Connector
8 Rxin/
RXout
Combined cabinet
interface DB connector
2.2.2.2 R8862
R8862 is the latest SDR based remote RF unit (RRU), featuring 2-way transmitting and
2-way receiving. The physical appearance is shown below.
Figure 2-18 R8862 Physical Appearance
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ZTE Confidential Proprietary 33
It works on APAC700M/DD/900M/1800M/2100MHz of frequency bands. With SDR
technology, R8862 supports GSM, UMTS and LTE communication systems.
R8862 consists of transceiver (TRX), power amplifier (PA), duplexer (DFL) and power
(PWR). There are two TX/RX ports for connecting antennas. Functions of each module
are shown in Table 2-13.
Table 2-15 R8862 Modules
Module Main Functions
TRX Receives and transmits the signals of panel interfaces, digital
intermediate frequency and RF, and provides controls clock,
power and power amplification.
PA Amplifies downlink RF signals and outputs them to the duplexer.
LNA is included in this module, amplifying uplink RF signals and
output them to TRX.
DFL Consists of a duplexer, filter and their own low-noise amplifier
subsystems. It can receive diversities.
PWR Provides lightning protection for the AISG, RS485 and dry
contacts.
R8862 external interface locates in the bottom and side of the cabinet, as shown below.
The interface descriptions are listed also.
Figure 2-19 R8862 External Interfaces
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Table 2-16 R8862 External Interfaces Description
S.N. Label Interface Interface Type/Connector
1 OPT1
BBU and RRU
Interfaces / RRU
cascading interface
LC-mode optical interface (IEC 874)
2 OPT2 RRU cascading
interface LC-mode optical interface (IEC 874)
3 PWR Power input interface DC: 2-pin round connector (pin)
AC: 3-pin round connector (pin)
4 GND Protection
ground interface 16 mm
2 yellow/green round terminal
5 AISG/MON
AISG equipment
interface
External monitoring
interface &
LMT O&M Ethernet
interface
DB15 connector
ZXSDR FDD GUL BS8700 Product Description
ZTE Confidential Proprietary 35
6 ANT1
(TX/RX)
TX/RX
antenna
feeder interface
50Ω DIN-mode Connector
7 ANT2
(TX/RX)
TX/RX antenna
feeder interface 50Ω DIN-mode Connector
2.2.2.3 R8862A
R8862A is the latest SDR based remote RF unit (RRU), featuring 2-way transmitting and
4-way receiving. It works on 850M/1800M/2100M/2600MHz of frequency bands. The
physical appearance is shown below.
Figure 2-20 R8862A Physical Appearance
R8862A consists of quad-channel transceiver (QTR), duplex filters LNA (DFL), power
amplifier (PA), power module (PWR) and protecting interface board (PIB). Functions of
each module are shown below.
Table 2-17 R8862A Modules
Module Main Function
QTR Receives and transmits the signals of panel interfaces, digital
intermediate frequency and RF, and provides controls clock,
power and power amplification functions.
DFL Combine and isolate transmitted and received signal, filter the
transmitted signal and received signal, provide DFL alarm monitor
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Module Main Function
function.
PA Perform radio signal amplifying and Low-Noise-Amplifier (LNA)
function, generate temperature report, and perform power
protection function.
PWR Provides power supply function and monitors power state.
PIB Integrated lightning protect unit for the AISG, RS485 and dry
contacts, and the protection level is 20 KA.
External interfaces of R8862A locate in the bottom and side of the module, as shown
below.
Figure 2-21 R8862A External Interfaces
The interface descriptions are listed as follows.
Table 2-18 R8862A External Interfaces Description
S.N. Label Interface Interface Type/Connector
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ZTE Confidential Proprietary 37
1 OPT1
BBU and RRU
Interfaces / RRU
cascading interface
LC-mode optical interface (IEC 874)
2 OPT2 RRU cascading
interface LC-mode optical interface (IEC 874)
3
PWR Power input interface 2-pin customized connector
Grounding cable
interface for AC power
supply
-
4 GND Protection
ground interface 16 mm
2 yellow/green round terminal
5 AISG/MON
AISG equipment
interface
External monitoring
interface &
LMT O&M Ethernet
interface
DB15 connector
6 ANT1
(TX/RX)
TX/RX
antenna
feeder interface
50Ω DIN-mode Connector
7 ANT2 (RX) RX antenna interface 50 Ω DIN-mode connector
8 ANT3 (RX) RX antenna interface 50 Ω DIN-mode connector
9 ANT4
(TX/RX)
TX/RX antenna
interface 50 Ω DIN-mode connector
2.2.2.4 R8863
ZTE ZXSDR R8863 is one distributed Remote Radio Unit (RRU) used in ZTE Uni-RAN
total solution, supporting GSM and UMTS dual-modes with 3 transmitters. The RRU is
based on the common ZTE new generation RRU platform, and can work in single GSM
or UMTS mode or dual-mode in the same frequency band. The physical structure is
shown as follows.
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Figure 2-22 R8863 Physical Structure
R8863 consists of transceiver (TRX), power amplifier & low noise amplifier (PA&LNA),
duplexer (DFL) and power (PWR), the functions are introduced below.
Table 2-19 R8863 Modules
Module Main Functions
TRX Receives and transmits the signals of panel interfaces, digital
intermediate frequency and RF, and provides controls clock,
power and power amplification.
PA&LNA There are three PAs in R8863. PA amplifies downlink RF signals
and outputs them to the duplexer. Low-noise amplifier
subsystems are included in this module.
DFL Consists of a duplexer and it can receive diversities.
PWR Provides EMC protection for the power interface, monitoring
interface, and the AISG interface.
R8863 external interfaces are located in the bottom and side, as shown in the following
figure.
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ZTE Confidential Proprietary 39
Figure 2-23 R8863 External Interfaces
The interfaces are described in the following table.
Table 2-20 R8863 External Interfaces Description
S.N. Label Interface Interface Type/Connector
1 OPT1
BBU and RRU
Interfaces / RRU
cascading interface
LC-mode optical interface (IEC 874)
2 OPT2 RRU cascading
interface LC-mode optical interface (IEC 874)
3 PWR Power input interface DC: 2-pin round connector (pin)
4 GND Protection
ground interface 16 mm
2 yellow/green round terminal
5 AISG/MON
AISG equipment
interface;
External monitoring
interface; &
LMT O&M Ethernet
interface
DB15 connector
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40 ZTE Confidential Proprietary
6 ANT1
(TX/RX)
TX/RX
antenna
feeder interface
50Ω DIN-mode connector
7 ANT2
(RX)
Receive antenna
feeder interface 50Ω DIN-mode connector
8 ANT3
(TX/RX)
TX/RX
antenna
feeder interface
50Ω DIN-mode connector
9 ANT4
(RX)
Receive antenna
feeder interface 50Ω DIN-mode connector
10 ANT5
(TX/RX)
TX/RX
antenna
feeder interface
50Ω DIN-mode connector
11 ANT6
(RX)
Receive antenna
feeder interface 50Ω DIN-mode connector
2.2.2.5 R8881 (120W)
R8881 (120W) is the SDR based GSM/UMTS dual-mode multi-carrier remote RF unit
(RRU). It has one transmitter with high output power. It works in 900M/1800M/2.1GHz
frequency bands. The physical appearance is shown as follows.
Figure 2-24 R8881 (120W) Physical Appearance
R8881 (120W) consists of transceiver (RTR), power amplifier (PA), duplexer (DFL) and
power (PWR) modules. There are one TX/RX port and one RX port for connecting
antenna. Functions of each module are shown as follows.
ZXSDR FDD GUL BS8700 Product Description
ZTE Confidential Proprietary 41
Table 2-21 R8881 (120W) Modules
Module Function
RTR Receives and transmits the signals of panel interfaces, digital
intermediate frequency and RF, and controls clock, power and
power amplification.
PA Amplifies downlink RF signals and outputs them to the duplexer.
DFL Consists of a duplexer, filter and their own low-noise amplifier
subsystems. It can receive diversities.
PWR Provides lightning protection for the AISG, RS485 and dry
contacts.
R8881 (120W) external interface locates in the bottom and side of the cabinet, as shown
below. The interface descriptions are listed also.
Figure 2-25 R8881 (120W) External Interfaces
1 2 3 4 5
10 9 8 7 6
a b
c
a: Front viewb: Side view c: Bottom view
11
ZXSDR FDD GUL BS8700 Product Description
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Table 2-22 R8881 (120W) External Interfaces Description
S.N. Label Interface Interface Type/Connector
1 RXin Combined cabinet
interface N-mode connector
2 RXout Combined cabinet
interface N-mode connector
3 GND Protection
ground interface 16 mm
2 yellow/green round terminal
4 ANT1
TX/RX
Transmit/Receive
antenna
feeder interface
50Ω DIN-mode Connector
5 ANT2
RX
Receive antenna
feeder interface 50Ω DIN-mode Connector
6 OPT1 BBU and RRU Interfaces /
RRU cascading interface LC-mode optical interface (IEC 874)
7 OPT2 BBU and RRU Interfaces /
RRU cascading interface LC-mode optical interface (IEC 874)
8 AISG AISG equipment interface 8-pin circle connector (IEC
60130-9-ED) (female)
9 MON External monitoring
interface 8-pin circle connector (male)
10 PWR Power input interface DC: 2-pin round connector (pin)
AC: 3-pin round connector (pin)
11 LMT O&M Ethernet interface
8P8C angle socket, PCB shielded
welding, LED phone (LED indicators:
yellow for left indicator and green for
right indicator)
2.2.2.6 R8882
R8882 is the multi-carrier RF module with two transmitters. Now ZTE provides R8882
series, R8882 2*60W, 2*40W, 2T2R and 2T4R. R8882s with different output power have
the same architecture but differ in the power amplifier and physical indices. The
differences between 2T2R and 2T4R modules include working bandwidth and number of
ZXSDR FDD GUL BS8700 Product Description
ZTE Confidential Proprietary 43
receivers. In the physical appearance, R8882 2T4R has four antenna feeder interfaces
but R8882 2T2R has two. The physical appearance is shown as follows.
Figure 2-26 R8882 (2*60W) Physical Appearance
Figure 2-27 R8882 (2*40W) Physical Appearance
R8882 has two PAs, with both PAs working on the same bands, or one PA in 900MHz
and the other in 1800MHz. With SDR platform, R8882 supports GSM, UMTS or LTE
single mode or mixed-mode through software configuration.
R8882 consists of quad-channel transceiver (QTR), duplex filters LNA (DFL), power
amplifier (PA), RRU Power for DC (RPDC) and protecting interface board (PIB).
Functions of each module are shown below.
Table 2-23 R8882 Modules
Module Main Function
QTR Receives and transmits the signals of panel interfaces, digital
ZXSDR FDD GUL BS8700 Product Description
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Module Main Function
intermediate frequency and RF, and provides controls clock,
power and power amplification functions.
DFL Combine and isolate transmitted and received signal, filter the
transmitted signal and received signal, provide DFL alarm monitor
function.
PA Perform radio signal amplifying and Low-Noise-Amplifier (LNA)
function, generate temperature report, and perform power
protection function.
RPDC Provides power supply function and monitors power state.
PIB Integrated lightning protect unit for the AISG, RS485 and dry
contacts, and the protection level is 20 KA.
R8882 external interface locates in the bottom and side of the cabinet, as shown below.
The interface description is listed in the following table.
Figure 2-28 R8882 External Interface
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ZTE Confidential Proprietary 45
Table 2-24 R8882 External Interfaces Description
S.N. Label Interface Interface Type/Connector
1 PWR -48V DC power input
interface 2-pin round plastic connector (male)
2 MON External monitoring
interface 8-pin circle connector (male)
3 AISG AISG interface 8-pin circle connector (IEC
60130-9-ED) (female)
4 GND PE interface 16 mm2 yellow-green round terminal
5 OPT1
BBU and RRU
Interface/RRU
cascading interface
LC-mode optical interface (IEC 874)
6 OPT2 RRU cascading
interface LC-mode optical interface (IEC 874)
7 ANT1
(TX0/RX0)
Antenna feeder
interface
(Tx0/Rx0)
50 Ω DIN-mode connector
8
ANT2
(RX2)
(Optional*)
Antenna feeder
interface (Rx2) 50 Ω DIN-mode connector
9
ANT3
(RX3)
(Optional*)
Antenna feeder
interface (Rx3) 50 Ω DIN-mode connector
10 ANT4
(TX1/RX1)
Antenna feeder
interface
(Tx1/Rx1)
50 Ω DIN-mode connector
11 LMT
Ethernet interface
for operation and
maintenance
RJ45
Optional*: NO ANT2 and ANT3 in 2T2R products.
2.2.2.7 R8884
R8884 is the multi-carrier RF module, featuring 4-way transmitting and 4-way receiving.
The physical appearance is shown as follows.
ZXSDR FDD GUL BS8700 Product Description
46 ZTE Confidential Proprietary
Figure 2-29 R8884 Physical Appearance
According to the radio output power, there are three kinds of R8884, which are R8884
S2600 with 4*30W in 2.6GHz, R8884 M8026 with 4*40W and R8884 M1826 with 2*50W
(1800MHz) +2*40W (2.6GHz). They have the same architecture and physical structure.
R8884 module consists of duplex filters LNA (DFL), 4 power amplifiers (PA), RRU power
for DC (RPDC), quad-channel transceiver (QTR) and protection interface board (PIB).
There are four TX/RX ports for connecting antenna.
Table 2-25 R8884 Modules
Module Main Functions
QTR The QTR module processes 4 received signals and 4 transmitted
signals, receives and transmits the signals of panel interfaces,
digital intermediate frequency and RF, and provides controls
clock, power and power amplification.
DFL DFL combines, isolates, and filter transmitted signal and received
signal, provides Low-Noise-Amplifier (LNA) function, and DFL
alarm monitor function.
PA PA performs radio signal amplifying function, temperature report
function and over-current, over-heat, over-power and
over-standing wave protecting function.
RPDC RPDC provides power supply function and monitors input
over-voltage/under-voltage, input power outage, output
over-voltage/under-voltage, output over-current alarm, and report
it to QTR board.
ZXSDR FDD GUL BS8700 Product Description
ZTE Confidential Proprietary 47
Module Main Functions
PIB PIB provides lightning protection for the AISG, RS485 and dry
contacts.
R8884 external interface locates in the bottom and side of the cabinet, as shown below.
The interface description is listed in the following table.
Figure 2-30 R8884 External Interface
Table 2-26 R8884 External Interfaces Description
S.N. Label Interface Interface Type/Connector
1 PWR power supply interface 2-pin round plastic cable connector
(male)
2 MON RS485/dry contact
monitoring interface 8-pin round connector
3 AISG AISG device interface 8-pin round connector
4 OPT1 Connector to the BBU LC-mode optical interface (IEC 874)
5 OPT2 Reserved LC-mode optical interface (IEC 874)
6 ANT4 4
th TX/RX antenna
feeder interface 50 Ω DIN-mode connector
7 ANT3 3
rd TX/RX antenna
feeder interface 50 Ω DIN-mode connector
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48 ZTE Confidential Proprietary
8 ANT2 2
nd TX/RX antenna
feeder interface 50 Ω DIN-mode connector
9 ANT1 1
st TX/RX antenna
feeder interface 50 Ω DIN-mode connector
10 LMT O&M Ethernet
interface 8P8C Ethernet interface
2.3 Software Architecture
The software system of SDR BTS can be divided into operating support layer and
application layer.
Figure 2-31 SDR BTS Software Structure
The operating support layer provides the functions of OSS, while OAM, DBS, BRS,
BRACS and SCS serve different BTS modes.
OAM (Operating and Maintenance) is to provide the configuration, alarm and
performance measurement function.
DBS (Database Sub-system) is the database system.
BRS (Bearer Sub-system) is for protocol stack processing.
GSM/UMTS/LTE Functions
NOP
OMC-B
SCS OAM DBS BRACS BRS
Hardware (BSP)
Linux
LMT
OSS
ZXSDR FDD GUL BS8700 Product Description
ZTE Confidential Proprietary 49
BRACS (Bearer Access Control Sub-system) is to control the access to bear layer.
SCS (System Control Sub-system) is to control the power supplying and
active/standby switching.
OSS (Operation Support Sub-system) is the support layer in this entire framework, which
is a hardware platform for running software and provides basic functions like scheduling,
timer, memory management, communication, sequencing control, monitoring, alarming
and logging.
Board Support Package (BSP) is the software closely connected with the board
hardware and supports Real Time Operation Support Sub-system (RT OSS) to work on
the board.
3 Functionality
3.1 Basic Functions
Being compliant with 3GPP standards R99/R4/R5/R6/R7/R8/R9/R10, BS8700 supports
GSM 850M/900M/1800M/1900MHz, UMTS 850M/900M/1900M/2100MHz, LTE
APAC700M/DD/850M/900M/1800M/1900M/2100M/2600MHz and their combination.
BS8700 supports the following basic functions on Um/Uu, Abis/Iub/S1/X2 and O&M
interfaces.
With Um/Uu interface, BS8700 supports UE access and radio link transmission
including RF processing, channel coding and decoding, channel multiplexing and
de-multiplexing, measuring and reporting, power control, receiving diversity,
calibration and synchronization.
With Abis/Iub/S1/X2 interface, BS8700 connects with BSC/RNC/EPC and supports
the following functions including cell management, BS measurement information
report, system information broadcast, access control implementation from
BSC/RNC/EPC, mobility management, radio resource management and control, FP
process and ATM transmission management.
ZXSDR FDD GUL BS8700 Product Description
50 ZTE Confidential Proprietary
With operating and maintenance interface, BS8700 provides system management
functions including configuration management, alarm management, status checking
and system monitoring.
3.2 Service Functions
Moreover, main service functions of BS8700 are listed as follows:
GSM services:
GSM voice service (FR/EFR/HR/AMR/AMR-WB)
GPRS/EDGE data service, achieving 59.2 Kbit/s per time slot at the radio
interface
EDGE evolution
UMTS services:
UMTS R99 service, HSPA (DL 14.4Mbps/UL 5.76Mbps), HSPA+ (DL
168Mbps/UL 23Mbps)
MBMS service, including broadcast and multicast functions (PtP & PtM)
Supports 64QAM, MIMO, DC/4C and their diverse combinations for DL
Supports 16QAM, 16QAM + DC, A-RAKE technology, interference
cancellation for UL
Advanced energy-saving features, such as dynamic power sharing, intelligent
Cell shutdown
Several measures to make cell range extended up to 240 Km
LTE Services:
Supports the configuration of 1.4M/3M/5M/10M/15M/20MHz bandwidth
Supports 2T2R/2T4R and downlink 2*2 MIMO
ZXSDR FDD GUL BS8700 Product Description
ZTE Confidential Proprietary 51
Supports 64QAM modulation in both downlink and uplink
Supports discontinuous transmission (DTX)
Supports dynamic PA Bias voltage adjustment
GSM/UMTS/LTE Uni-RAN services:
GSM/UMTS BBU cascading
GSM/UMTS dynamic power sharing
GSM/UMTS/LTE IP common transmission
Intelligent carrier power On/Off
Supports basic interworking between G/U and LTE network
4 Technical Specifications
4.1 Physical Indices
Table 4-1 Physical Indices
Item Modules Indices
Size (H*W*D) (mm) B8200 88.4*482.6*197
R8861 398*218*115
R8862 422*218*133
R8862A 422*218*133
R8881 (120W) 370*320*193
R8882 (2*40W) 380*320*140
R8882 (2*60W) 480*320*150
R8863 440*360*133
R8884 600*320*145
Weight (kg) B8200 (1UBPG3+1BPK_d) 6.25
ZXSDR FDD GUL BS8700 Product Description
52 ZTE Confidential Proprietary
B8200 (1 BPL1) 5.25
B8200 (Full configuration) 8.75
R8861 12
R8862 14
R8862A 15
R8881 (120W) 19.5
R8882 (2*40W) 20
R8882 (2*60W) 23
R8863 25
R8884 29
4.2 Performance Indices
4.2.1 BBU Capacity
Table 4-2 B8200 Capacity
Mode Capacity BBU Configuration
GSM 120 TRXs 5UBPG3+1CC+1FS+1PM+1SA
UMTS
48CSs
3BPK_d+2BPK_e+1CC+1FS+2P
M+1SA 3072 CEs UL/3072 CEs DL
552 Mbps UL /1000 Mbps DL
30CSs
5BPK_e+1CC+1FS+1PM+1SA 1920 CEs UL/1920 CEs DL
345 Mbps UL /1000 Mbps DL
LTE
18x20MHz cells (2T2R/2T4R)
3BPL1+1CC16B+2PM+1SA 10800 RRC_connected users
900Mbps UL/900 Mbps DL
18x20MHz cells (2T2R/2T4R)
3BPN0+1CC16B +1PM+1SA 10800 RRC_connected users
900Mbps UL/900 Mbps DL
GUL GSM 48 TRXs + UMTS 24 CSs + 2UBPG3+2BPK_d+1CC16B+1BP
ZXSDR FDD GUL BS8700 Product Description
ZTE Confidential Proprietary 53
Mode Capacity BBU Configuration
LTE 6 Cells L1/BPN0+1FS+2PM+1SA
Note: 1. The CC board supports GE/FE interface and thus limits the total data throughput to
1000Mbps in the physical layer (900Mbps in application layer for LTE single mode). 2. The above
table describes the maximum hardware capacity. The actual capacity is up to the licenses
configured.
4.2.2 RRU Capacity
Table 4-3 R8861 Capacity
System RRU Capacity
GSM 8 TRXs
UMTS 4 Carriers
LTE 1.4M, 3M, 5M, 10M, 15M, 20MHz
G/U dual-mode 4 TRXs + 1 Carrier, or 2 TRXs + 2 Carriers
G/L dual-mode 900MHz 4 GSM TRXs + LTE 10MHz
G/L dual-mode 1800MHz 4 GSM TRXs + LTE 20MHz
U/L dual-mode 2100MHz 2 UMTS Carriers + LTE 20MHz
Table 4-4 R8862 Capacity
System RRU Capacity
GSM single mode 12 TRXs
UMTS single mode 8 Carriers
LTE single mode 1.4M, 3M, 5M, 10M, 15M, 20MHz
G/U dual-mode 8 GSM TRXs + 2 UMTS Carriers, or
4 GSM TRXs + 4 UMTS Carriers
G/L dual-mode 900MHz 8 GSM TRXs + LTE 10MHz
G/L dual-mode 1800MHz 8 GSM TRXs + LTE 20MHz
U/L dual-mode 2 UMTS carriers (MIMO) + LTE 20MHz
ZXSDR FDD GUL BS8700 Product Description
54 ZTE Confidential Proprietary
Table 4-5 R8862A Capacity
System RRU Capacity
LTE single mode 1.4M, 3M, 5M, 10M, 15M, 20MHz
Table 4-6 R8863 Capacity
System RRU Capacity
GSM single mode 3*6 TRXs
UMTS single mode 3*3 Carriers
G/U dual-mode 3*(4 GSM TRXs + 1 UMTS carrier)
3*(2 GSM TRXs + 2 UMTS carriers)
Table 4-7 R8881 (120W) Capacity
System RRU Capacity
GSM 8 TRXs
UMTS 4 Carriers
G/U dual-mode 4 TRXs + 1 Carrier, or 2 TRXs + 2 Carriers
Table 4-8 R8882 Capacity
System RRU Capacity
GSM single mode 12 TRXs, or 6 TRXs@900MHz + 6 TRXs@1800MHz
UMTS single mode 8 Carriers
LTE single mode 1.4MHz, 3MHz, 5MHz, 10MHz, 15MHz and 20MHz
G/U dual-mode 8 GSM TRXs + 2 UMTS Carriers, or
4 GSM TRXs + 4 UMTS Carriers
G/L dual-mode 900MHz 8 GSM TRXs + LTE10MHz
G/L dual-mode 1800MHz 8 GSM TRXs + LTE 20MHz
U/L dual-mode 2 UMTS Carriers (MIMO) + LTE 20MHz
4 UMTS Carriers (non-MIMO + LTE 20MHz
Table 4-9 R8884 Capacity
RRU Type System RRU Capacity
ZXSDR FDD GUL BS8700 Product Description
ZTE Confidential Proprietary 55
R8884 M1826 GSM+LTE
dual-mode
12 GSM TRXs+ LTE 1.4MHz, 3MHz, 5MHz,
10MHz, 15MHz and 20MHz
R8884 M8026/
R8884 S2600 LTE single mode
1.4MHz, 3MHz, 5MHz, 10MHz, 15MHz and
20MHz
4.2.3 RRU Frequency Spectrum
Table 4-10 R8861 Frequency Spectrum
System RRU Frequency Spectrum(MHz)
GSM single mode 900/1800
UMTS single mode 900/2100
LTE single mode 1800/2100
G/U dual-mode 900
G/L dual-mode 900/1800
U/L dual-mode 900/2100
Table 4-11 R8862 Frequency Spectrum
System RRU Frequency Spectrum(MHz)
GSM single mode 900/1800
UMTS single mode 900/2100
LTE single mode APAC700/DD/900/1800/2100
G/U dual-mode 900
G/L dual-mode 900/1800
U/L dual-mode 900/2100
Table 4-12 R8862A Frequency Spectrum
System RRU Frequency Spectrum(MHz)
LTE single mode 850/1800/2100/2600
Table 4-13 R8863 Frequency Spectrum
System RRU Frequency Spectrum(MHz)
ZXSDR FDD GUL BS8700 Product Description
56 ZTE Confidential Proprietary
GSM single mode 900/1800
UMTS single mode 900/2100
G/U dual-mode 900
Table 4-14 R8881 (120W) Operation Frequency Bands
System RRU Frequency Spectrum(MHz)
GSM single mode 900/1800
UMTS single mode 900/2100
G/U dual-mode 900
Table 4-15 R8882 (2*40W) Frequency Spectrum
System RRU Frequency Spectrum(MHz)
LTE single mode 700/710/DD/2600
Table 4-16 R8882 (2*60W) Frequency Spectrum
System RRU Frequency Spectrum(MHz)
GSM single mode 850/900/1800/1900
UMTS single mode 850/900/1900/2100
LTE single mode 810/850/900/1800/1900/2100/AWS
G/U dual-mode 850/900/1900, or G/U dual-mode in 900MHz of one PA,
and GSM single mode in 1800MHz of the other PA
G/L dual-mode 900/1800
U/L dual-mode 900/2100
Table 4-17 R8884 Frequency Spectrum
Module System RRU Frequency Spectrum(MHz)
R8884 S2600 L single mode 2600 (4T4R)
R8884 M8026 L single mode DD (2T2R)+2600 (2T2R)
R8884 M1826 G/L dual-mode 2600 (L, 2T2R)+1800 (G/L, 2T2R)
ZXSDR FDD GUL BS8700 Product Description
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4.2.4 RRU Output Power
Table 4-18 RRU Output Power
RRU Type Output Power (TOC)
R8861
GSM single mode:
80W (TRX number = 1 to 6)
63W (TRX number = 7)
56W (TRX number = 8)
UMTS single mode & G/U dual-mode: 80W
LTE single mode & GSM/LTE dual-mode: 60W
R8863 3*80W
R8881 (120W) 120W
R8882 2*60W/2*40W
R8884 S2600 4*30W
R8884 M8026 2*40W+2*40W
R8884 M1826 2*50W (1800MHz) + 2*40W (2600MHz)
Note: When “ZGO-04-01-011 Power Boost for 8PSK” is applied in GSM mode, the TOC output
power achieves the same in 8PSK modulation as in GMSK.
4.2.5 Static Receiving Sensitivity
Table 4-19 BS8700 Static Receiver Sensitivity
Mode Frequency
Spectrum(MHz)
Single Antenna
(dBm)
Dual Antennas
(dBm)
Four Antennas
(dBm)
GSM 850/900/1800/190
0 -113.5 -115.5 N/A
UMTS 2100 -126.5 -129.2 N/A
850/900/1900 -126.4 -129.1 N/A
LTE
APAC700/DD -106.6 -109.4 N/A
850/900 -106.6 -109.4 -112.2
1800/1900/2100/2
600 -106.4 -109.2 -112
ZXSDR FDD GUL BS8700 Product Description
58 ZTE Confidential Proprietary
4.2.6 LTE RRU IBW
BS8700 supports all LTE bandwidths: 1.4MHz, 3MHz, 5MHz, 10MHz, 15MHz and
20MHz (please make the object as the standard). The IBW varies at different working
frequency bands and RRUs, specified in the following table.
Table 4-20 R8861 Bandwidth Parameter in LTE Single Mode
RRU Band IBW (MHz) Work BW (MHz)
R8862 S1800 B3 40 55
R8862 S2100 B1 40 60
Table 4-21 R8862 Bandwidth Parameter in LTE Single Mode
Type Band IBW (MHz) Work BW (MHz)
R8862 S7200 B28 45 45
R8862 S8000 B20 30 30
R8862 S9000 B8 35 35
R8862 S1800 B3 50 50
R8862 S2100 B1 60 60
Table 4-22 R8862A Bandwidth Parameter in LTE Single Mode
Type Band IBW (MHz) Work BW (MHz)
R8862A S8500 B5 25 25
R8862A S1800 B3 50 50
R8862A S2100 B1 60 60
R8862A S2600 B7 70 70
Table 4-23 R8882 Bandwidth Parameter in LTE Single Mode
Type Band IBW (MHz) Work BW (MHz)
ZXSDR FDD GUL BS8700 Product Description
ZTE Confidential Proprietary 59
Type Band IBW (MHz) Work BW (MHz)
R8882 S7000 B12/17 18 18
R8882 S7100 B13/14 22 22
R8882 S8000 B20 30 30
R8882 S8100 B27 18 18
R8882 S8500 B5 25 25
R8882 S9000 B8 35 35
R8882 S1800 [[1]] B3 45 55
30 75
R8882 S1900 B2 40 40
R8882 S1700 B4 40 45
R8882 S2100 B1 40 60
R8882 S2600 B7 40 70
Note [1]: There are two types of R8882 S1800, which vary in IBW and work bandwidth.
Table 4-24 R8884 Band Parameter in LTE Single Mode
IBW
Type
Band IBW TX(MHz) IBW RX(MHz)
R8884 S2600 B7 40 70
R8884 M8026 B20 + B7 B20: 30
B7: 40
B20: 30
B7:70
R8884 M1826 B3 + B7 B3: 45
B7: 40
B3: 55
B7: 70
4.3 Power Indices
4.3.1 Power Supply
Table 4-25 Power supply indices
Modules Input Power
ZXSDR FDD GUL BS8700 Product Description
60 ZTE Confidential Proprietary
B8200 DC: -48 V (-40 V - -57 V DC)
R8861/R8862/R8862A DC: -48 V (-37 V - -60 V DC)
AC: 110 V/220 V (90 V - 290 V AC)
R8863/R8881(120W)/R8882
/R8884
DC: -48 V (-37 V - -60 V DC)
AC: 110 V/220 V (90 V - 290 V AC) (by AC/DC
lightning protection unit)
4.3.2 Power Consumption
4.3.2.1 ZXSDR B8200 Power Consumption
Table 4-26 ZXSDR B8200 Power consumption
Items Power Consumption (W)
B8200 12 TRXs/1 UBPG 70
B8200 24 TRXs/1 UBPG3 75
B8200 6CS/3 BPK_e/BPK_e1 85
B8200 12CS/1 BPK_d 105
B8200 3 cells BPL1 120
B8200 3 cells BPN0 80
4.3.2.2 Power Consumption of RRU in UMTS Single Mode
Table 4-27 RRU Power Consumption in UMTS Single Mode
Items Power Consumption (W)
Average Peak
R8861 S9000 S2/TOC 40W 125 170
R8862 S9000 S4 2PA/TOC 2*40W 240 355
R8863 S2100 S2/2/2 /TOC 3*40W 275 430
R8882 S9000 S1/1 2PA/TOC 2*20W 185 240
R8882 S2100 S1 MIMO/TOC 2*20W 155 210
ZXSDR FDD GUL BS8700 Product Description
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4.3.2.3 Power Consumption of RRU in GSM Single Mode
Table 4-28 RRU Power Consumption in GSM Single Mode
Items Power Consumption (W)
Average Peak
R8861 S9000 S4/TOC 80W 170 270
R8862 S9000 S8/TOC 2*60W 290 410
R8882 S9000 S4/4 2PA/TOC 2*60W 290 445
4.3.2.4 Power Consumption of RRU in LTE Single Mode
Table 4-29 R8861 Power Consumption in LTE Single Mode
Items Power Consumption (W)
Average Peak
R8861 S2100 / TOC 60W 134 220
R8861 S1800 / TOC 60W 130 215
Table 4-30 R8862 Power Consumption in LTE Single Mode
Items Power Consumption (W)
Average Peak
R8862 S7200 160 295
R8862 S8000 165 300
R8862 S9000 210 430
R8862 S1800 220 450
R8862 S2100 215 440
Table 4-31 R8862A Power Consumption in LTE Single Mode
Items Power Consumption (W)
Average Peak
R8862A S1800 220 450
R8862A S2100 215 440
ZXSDR FDD GUL BS8700 Product Description
62 ZTE Confidential Proprietary
Items Power Consumption (W)
Average Peak
R8862A S2600 190 355
Table 4-32 R8882 Power Consumption in LTE Single Mode
Items Power Consumption (W)
Average Peak
R8882 S2600 215 385
R8882 S8000 185 315
R8882 S8100 185 315
R8882 S7000 185 315
R8882 S7100 185 315
R8882 S1800 275 485
R8882 S1700 285 505
R8882 S2100 250 495
R8882 S9000 230 440
R8882 S8500 230 440
R8882 S1900 275 485
Table 4-33 R8884 Power Consumption in LTE Single Mode
Items Power Consumption (W)
Average Peak
R8884 S2600 340W 565W
R8884 M8026 380W 650W
R8884 M1826 395W 685W
4.3.2.5 Power Consumption of RRU in GSM/UMTS/LTE Multi-Mode
Table 4-34 Power Consumption of RRU in GSM/UMTS/LTE Multi-Mode
Mode Items Power Consumption (W)
Average Peak
ZXSDR FDD GUL BS8700 Product Description
ZTE Confidential Proprietary 63
Mode Items Power Consumption (W)
Average Peak
G/U dual-mode R8861 S9000 4G1U/
TOC 15W/GSM TRX+20W/
UMTS carrier
175 270
G/U dual-mode R8862 S9000 4G2U/
TOC 20W/GSM TRX
+20W/UMTS carrier
330 410
G/U dual-mode R8882 S9000 8G2U 2PA/
TOC 10W/GSM TRX+20W/
UMTS carrier)
300 445
G/L dual-mode R8882 S1800 8G1L
2PA/TOC 10W/GSM TRX
+20W/LTE
280 455
U/L dual-mode R8882 S2100 2U1L
2PA/TOC 20W/UMTS
carrier +20W/LTE
230 330
4.4 Interface Indices
Table 4-35 ZXSDR BS8700 Interface Indices
Interface Item Indices Type Standard
Abis/Iub E1/T1 16 pairs (8 pairs
optional) DB44
ITU G.703/G.704
ANSI T1.403
Abis/Iub/S1/X2
Ethernet
(either
or)
1
10M/100M/1000
M electrical
Auto-Negotiation.
Auto-MDI/MDIX
RJ45
10/100/1000BASE
-T IEEE 802.3
compatible
1 1000M optical
Or 1 100M optical SFP (LC)
1000BASE-LX
IEEE 802.3
compatible
100BASE-FX IEEE
802.3 compatible
ZXSDR FDD GUL BS8700 Product Description
64 ZTE Confidential Proprietary
Cascading,
Debugging or
Local
Maintenance
Ethernet
1
10M/100M/1000
M electrical
Auto-Negotiation.
Auto-MDI/MDIX
RJ45
10/100/1000BASE
-T IEEE 802.3
compatible
Baseband/Radio Optical 6 pairs/FS/BPN0
3 pairs/BPL/BPL1 SFP (LC) CPRI
Antenna Feeder ANT
Differ from RRUs.
Please refer to
RRU specification
50 Ohm
DIN-7/16
Connector
IEC 60169-4
Clock GPS 1 SMA GPS TX/RX Port
NMEA 0183 V3.0
Monitor Dry
contacts
16 pairs (8 pairs
optional) DB44 N/A
External EXT 1 RS485/RS
232 N/A
4.5 Environment Indices
Table 4-36 ZXSDR BS8700 Environment Indices
Environmen
t
Indices
Temperature BBU: -20°C - +50°C
RRU: -40°C - +55°C
Relative
Humidity
BBU: 5% - 95%
RRU: 10% - 100%
Waterproof
/Dustproof
BBU: IP20
RRU: IP65
Ground
≤5Ω. Earth resistance can be less than 10Ω in
thunder less area where there are less than 20
thunderstorm days in a year.
ZXSDR FDD GUL BS8700 Product Description
ZTE Confidential Proprietary 65
4.6 Electromagnetic Compatibility Indices
Table 4-37 ZXSDR BS8700 Electromagnetic Compatibility Indices
EMC Indices
National/
International
Standard
YD/T 1595.2-2007
ETSI EN 301 489-01, ETSI EN 301 489-23
ETSI EN 300 386-V1.3.2
(CISPR22) Class B
Directive 1999/5/EC (R&TTE)
4.7 Reliability Indices
Table 4-38 ZXSDR BS8700 Reliability Indices
Reliability
Indices
MTBF
BBU(GUL): ≥208,000 hours
R8861 (DC): ≥554,000 hours
R8861 (AC): ≥540,000 hours
R8862/R8862A (DC): ≥464,000 hours
R8862/R8862A (AC):≥442,000 hours
R8863:≥360,000 hours
R8881(120W): ≥554,000 hours
R8882: ≥464,000 hours
R8884: ≥340,000 hours
MTTR BBU: 0.5 hours
RRU: 1 hours
Availability
BBU (GUL): ≥99.999760%
R8861(DC): ≥99.999819%
R8861 (AC): ≥99.999815%
R8862/R8862A (DC): ≥99.999784%
R8862/R8862A (AC): ≥99.999774%
R8863: ≥99.999722%
R8881(120W): ≥99.999819%
R8882: ≥99.999784%
R8884: ≥99.999706%
ZXSDR FDD GUL BS8700 Product Description
66 ZTE Confidential Proprietary
Down Duration
BBU (GUL): ≤1.263min/year
R8861 (DC): ≤0.949 min/year
R8861 (AC): ≤0.973 min/year
R8862/R8862A (DC): ≤1.133 min/year
R8862/R8862A (AC): ≤1.189 min/year
R8863: ≤1.460 min/year
R8881(120W): ≤0.949 min/year
R8882: ≤1.133 min/year
R8884: ≤1.546 min/year
5 Configurations
5.1 Baseband Unit Configuration Principles
B8200 is the baseband unit of BS8700, which is composed of these boards: CC, BP, FS,
SA/SE, UES, TAM, PM, FAM, etc. Configuration principles of these boards are described
in the following table:
Table 5-1 B8200 Configuration
Board Configuration Principles
CC
At least 1 board is configured by default.
Maximally 2 boards can be configured for 1+1 backup.
The key indices of the 3 categories of CC boards refer to table
2-2.
Baseband
Processing
Board
UBPG 12 GSM TRXs/board.
Maximally 5 boards can be configured.
UBPG3 24 GSM TRXs/board.
Maximally 5 boards can be configured.
BPK_e1
6 UMTS CSs/board, with 192CEs UL/192CEs DL
simultaneously. 34.5 Mbps UL and 129.6 Mbps DL
simultaneously.
Maximally 5 boards can be configured.
ZXSDR FDD GUL BS8700 Product Description
ZTE Confidential Proprietary 67
BPK_e
6 UMTS CSs/board, with 384CEs UL/384CEs DL
simultaneously. 69 Mbps UL and 259.2 Mbps DL
simultaneously.
Maximally 5 boards can be configured.
BPK_d
12 UMTS CSs/board, with 768CEs UL/768CEs DL
simultaneously. 138 Mbps UL and 518.4 Mbps DL
simultaneously.
Maximally 3 boards can be configured.
BPL
3 pairs of CPRI optical/electrical interfaces/board.
3 20MHz cells with 2*2 MIMO/board.
150Mbps UL/300Mbps DL simultaneously.
Maximally 6 boards can be configured.
BPL1
3 pairs of CPRI optical/electrical interfaces/board.
6 20MHz cells with 2*2 MIMO/board.
Or 3 20MHz cells with 4*4 MIMO/board.
300Mbps UL/600Mbps DL simultaneously.
Maximally 3 boards can be configured.
BPN0
6 pairs of CPRI optical/electrical interfaces/board.
6 20MHz cells with 2*2 MIMO/board.
Or 3 20MHz cells with 4*4 MIMO/board.
300Mbps UL/600Mbps DL simultaneously.
Maximally 6 boards can be configured when CCE1 is used.
Maximally 3 boards can be configured when CC16B is used.
FS
6 pairs of CPRI optical/electrical interfaces/board. At least 1
board is configured by default for G/U dual-mode.
Maximally 2 boards can be configured.
FS is optional in LTE single mode configuration.
SA
6+2 dry contacts and 8 pairs of E1/T1 per board. Or 14+2 dry
contacts and 4 pairs of E1/T1 per board.
It is configured by default.
SE
6+2 dry contacts and 8 pairs of E1/T1 per board
Or 14+2 dry contacts and 4 pairs of E1/T1 per board.
This board is configured only when the requirements of dry
contacts or E1/T1 exceed SA capacity.
UES 4 electrical and 2 optical Ethernet interfaces per board.
It is configured when L2 Ethernet switch is required.
ZXSDR FDD GUL BS8700 Product Description
68 ZTE Confidential Proprietary
UCI
1 optical interface and 3 HDMI interfaces, configured for
connecting to the remote device when remote transportation
of GPS signal is required and the optical RGPS solution is
adopted. UCI-C is configured in the GLONASS system.
TAM
6 DC outputs with customized voltage per board.
It is configured for tower amplifier control when TMA is
needed.
PM At least 1 board is configured by default.
Maximally 2 boards can be configured for 1+1 backup.
FAM It is configured by default.
Note: The above table describes the maximum hardware capacity. The actual capacity is up to the
licenses configured.
5.2 Radio Unit Configuration Principles
With software configurations in different frequency spectrums, BS8700 can be
configured as GSM/UMTS/LTE base stations with various RRU choices. Appropriate
radio units should be chosen according to their specific requirements of system, capacity,
TOC output power, bearing, evolution and etc. Radio units used in different systems are
specified as follows.
5.2.1 GSM Single Mode Configuration Principles
R8861, R8862, R8863, R8881 (120W) or R8882 can be configured in GSM single mode.
Typical configurations of each module are listed below.
Table 5-2 R8861 Typical Configuration in GSM Single Mode
Site Type R8861 Qty
S4/4/4 3 (20W/TRX)
Table 5-3 R8862 Typical Configuration in GSM Single Mode
Site Type R8862 Qty
S6/6/6 3 (20W/TRX)
ZXSDR FDD GUL BS8700 Product Description
ZTE Confidential Proprietary 69
S8/8/8 3 (15W/TRX)
Table 5-4 R8863 Typical Configuration in GSM Single Mode
Site Type R8863 Qty
S4/4/4 1 (20W/TRX)
Table 5-5 R8881 (120W) Typical Configuration in GSM Single Mode
Site Type R8881 120W Qty
S3/3/3 3 (40W/TRX)
S6/6/6 3 (20W/TRX)
S8/8/8 3 (15W/TRX)
Table 5-1 R8882 Typical Configuration in GSM Single Mode
Site Type R8882 Qty
S4/4/4 900MHz+S4/4/4 1800MHz 3 R8882 GUL9018D (15W/TRX)
S4/4 1 (15W/TRX)
5.2.2 UMTS Single Mode Configuration Principles
R8861, R8862, R8863, R8881 (120W) or R8882 can be configured in UMTS single mode.
Typical configurations of each module are listed below.
Table 5-6 R8861 Typical Configuration in UMTS Single Mode
Site Type R8861 Qty
S2/2/2 3 (40W/Carrier)
S4/4/4 3 (20W/Carrier)
Table 5-7 R8862 Typical Configuration in UMTS Single Mode
Site Type R8862 Qty
S2/2/2 2*2MIMO 3 (30W/Carrier)
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Table 5-8 R8863 Typical Configuration in UMTS Single Mode
Site Type R8863 Qty
S2/2/2 1 (40W/Carrier)
Table 5-9 R8881 (120W) Typical Configuration in UMTS Single Mode
Site Type R8881 120W Qty
S4/4/4 3 (30W/Carrier)
Table 5-10 R8882 Typical Configuration in UMTS Single Mode
Site Type R8882 Qty
S2/2 1 (30W/Carrier)
S2/2/2/2/2/2 3 (30W/Carrier)
5.2.3 LTE Single Mode Configuration Principles
R8861, R8862, R8862A, R8882 or R8884 can be configured in LTE single mode. Typical
configurations of RRU are listed below.
Table 5-11 R8861 Configuration in LTE Single Mode
RRU Type Band Capacity
R8861 S1800 B3 1 * 20 MHz cell
R8861 S2100 B1 1 * 20 MHz cell
Table 5-12 R8862 Configuration in LTE Single Mode
RRU Type Band Capacity
R8862 S7200 B28 2x40W@ (20MHz+10MHz)
R8862 S8000 B20 2x40W@ (20MHz+10MHz)
R8862 S9000 B8 2x60W@ (20MHz+10MHz)
R8862 S1800 B3 2x60W@ (20MHz+10MHz)
R8862 S2100 B1 2x60W@ (20MHz+10MHz)
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Table 5-13 R8862A Configuration in LTE Single Mode
RRU Type Band Capacity
R8862A S2100 B1 2x60W@ (20MHz+10MHz)
R8862A S1800 B3 2x60W@ (20MHz+10MHz)
R8862A S2600 B7 2x40W@ (20MHz+10MHz)
Table 5-14 R8882 Configuration in LTE Single Mode
RRU Type Band Single Mode Configuration
R8882 S2600 B7 2*40W @ 2*20MHz
R8882 S8000 B20 2*40W @ (20MHz+10MHz)
R8882 S8100 B27 2*60W @ 15MHz
R8882 S7000 B12/17 2*40W @ 15MHz
R8882 S7100 B13/14 2*40W @ 20MHz
R8882 S1800 B3 2*60W @ 2*20MHz
R8882 S1700 B4 2*60W @ 2*20MHz
R8882 S2100 B1 2*60W @ 2*20MHz
R8882 S9000 B8 2*60W @ (20MHz+15MHz)
R8882 S8500 B5 2*60W @ (20MHz+5MHz)
R8882 S1900 B2 2*60W @ 2*20MHz
Table 5-15 R8884 Configuration in LTE Single Mode
RRU Type Capacity
R8884 S2600 (4x30W)@40MHz (continuous)
(4x30W)@2x10/15MHz (discontinuous, IBW is 40MHz)
(4x30W)@4x1.4/3/5MHz (discontinuous, IBW is 40MHz)
R8884 M8026 B7:
(2x40W)@20MHz (continuous)
or (2x40W)@2x15/10/5MHz (discontinuous, IBW is 40MHz)
B20:
(2x40W)@20MHz (continuous)
or (2x40W)@2x10/5MHz (discontinuous, IBW is 30MHz)
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5.2.4 GSM/UMTS Dual-mode Network in the Same Spectrum
R8861, R8862, R8863, R8881 (120W) or R8882 can be used in 900MHz for G/U
dual-mode. Typical configurations of each module are listed below.
Table 5-16 R8861 G/U Typical Configuration in G/U Dual-mode (Same Spectrum)
Site Type R8861 Qty
U:S1/1/1 + G:S4/4/4 3 (20W/UMTS Carrier+15W/GSM TRX)
U:S2/2/2 + G:S2/2/2 3 (20W/UMTS Carrier+20W/GSM TRX)
Table 5-17 R8862 G/U Typical Configuration in G/U Dual-mode (Same Spectrum)
Site Type R8862 Qty
U:S2/2/2+G:S8/8/8 3 (20W/UMTS Carrier+10W/GSM TRX)
U:S4/4/4+G:S4/4/4 3 (15W/UMTS Carrier+15W/GSM TRX)
Table 5-18 R8863 G/U Typical Configuration in G/U Dual-mode (Same Spectrum)
Site Type R8863 Qty
U:S1/1/1 + G:S4/4/4 1 (20W/UMTS Carrier+15W/GSM TRX)
U:S2/2/2 + G:S2/2/2 1 (20W/UMTS Carrier+20W/GSM TRX)
Table 5-19 R8881 (120W) Typical Configuration in G/U Dual-mode (Same Spectrum)
Site Type R8881 120W Qty
U:S1/1/1 + G:S4/4/4 3 (40W/UMTS Carrier+20W/GSM TRX)
U:S2/2/2 + G:S2/2/2 3 (30W/UMTS Carrier+30W/GSM TRX)
Table 5-20 R8882 Typical Configuration in G/U Dual-mode (Same Spectrum)
Site Type R8882 Qty
U:S1/1/1+G:S444 2 (20W/UMTS Carrier+10W/GSM TRX)
U:S2/2/2+G:S2/2/2 2 (15W/UMTS Carrier+15W/GSM TRX)
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5.2.5 GSM/UMTS Dual-mode Network in Different Spectrums
R8882 supports GSM/UMTS dual-mode in 900MHz and GSM single mode in 1800MHz
simultaneously.
Table 5-21 R8882 Typical Configuration in G/U Dual-mode (Different Spectrum)
Site Type R8882 Qty
U:S1/1/1 (B8)
G:S2/2/2 (B8)+S3/3/3 (B3) 3 (20W/UMTS Carrier+20W/GSM TRX)
5.2.6 GSM/LTE Dual-mode in 900M/1800MHz Spectrums
R8862 or R8882 can be used in 900/1800MHz in GSM/LTE dual-mode. R8884 can be
used in 1800M/2600MHz in GSM/LTE dual-mode.
Table 5-22 R8862/R8882 Typical Configuration in G/L Dual-mode
Site Type R8862/R8882 Qty
G:S8/8/8+L:S1/1/1 (20MHz)(B3) 3 (20W/LTE Cell+10W/GSM TRX)
Table 5-23 R8884 Typical Configuration in G/L Dual-mode (1800M+2600MHz)
Site Type R8884 Qty
G:S4/4/4 (B3)+L:S1/1/1 (20M,
B3)+L:S1/1/1 (20M,B7)
3 (20W/LTE cell@B3+10W/GSM TRX@B3
+40W/LTE Cell@B7)
5.2.7 UMTS/LTE Dual-mode in 900M/2100MHz Spectrums
R8862, R8882 can be used in 900M/2100MHz for U/L dual-mode.
Table 5-24 R8862/R8882 Typical Configuration in U/L Dual-mode
Site Type R8862/R8882 Qty
U:S2/2/2+L:S1/1/1 (20MHz) 3 (20W/LTE cell +20W/UMTS Carrier)
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6 Ancillary Equipment for BS8700
Besides the BS8700 main equipments, there should be ancillary equipments in field for
the site support purpose, such as power supply, battery, transmission, supervision and
etc. If the site is located outdoor, the cabinet with certain water- and dust-proof capability
should be provisioned to accommodate equipments, especially BBU. In this chapter,
three types of cabinets are introduced to support BS8700 in outdoor applications. Series
of cabinets meet with different accommodation requirements of power, transmission or
other third-party equipments. The details are as follows.
6.1 Site Support Cabinet Description
6.1.1 Type 1 - Cabinet BC8910B
BC8910B is the largest cabinet out of three cabinets, including baseband unit shelf, fan
and ventilation system, AC/DC power system and additional 4U space reserved for
transmission or other equipments. Moreover, BC8910B contains 2 sets of batteries,
which maximally supports 2*150AH.
BC8911B has similar hardware structure with BC8910B, except that it contains 1 set of
battery and 11U space reserved for transmission or other equipments.
BC8910B/BC8911B hardware architecture is shown in the following figure.
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Figure 6-1 BBU Cabinet BC8910B/BC8911B
1. Fan and ventilation vessel 2.AC/DC power system 3. Power distribution unit
4. B8200 5. Reserved space (for transmission, etc) 6. Battery
6.1.2 Type 2 - Cabinet BC8910A
BC8910A is the medium-sized one in the three cabinets. It can be used when there are
auxiliary devices should be contained but without battery. There are mainly five parts in
BC8910A: baseband unit, power supply system, power distribution module, heat
exchanging system and reserved space for transmission or other equipments. Together
with the fan system and ventilation vessel, the heat exchanger located in the cabinet
door makes the heat exchanging system. The fan system contains fan control element
(FCE) and 6 fans. BC8910A hardware architecture is shown in the following figure.
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Figure 6-2 Site Support Cabinet BC8910A (AC Power Supply)
1. Fan and ventilation vessel 2.AC/DC power system 3. B8200 4.Cable chute 5.Lightning
Protection 6.Reserved space (for transmission, etc) 7.Heater 8.Heat exchange
In the case of DC power supply, AC/DC power system (5U) should be replaced by DC
power distribution with 2U in height.
Figure 6-3 Site Support Cabinet BC8910A (DC Power Supply)
1. Fan and ventilation vessel 2.DC power system 3.B8200 4.Cable chute 5.Lightning protection
6.Reserved space (for transmission, etc) 7.Heater 8.Heat exchange
6.1.3 Type 3 - ZXSDR BS8906
ZXSDR BS8906 is the smallest one out of three cabinets. It is the outdoor compact base
station, with two kinds of cabinets.
Compact Cabinet, which consists of BBU, RSU and supporting modules.
Standalone Cabinet, which consists of BBU and supporting modules.
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If used as outdoor cabinet for BBU of BS8700 without many ancillary devices, standalone
cabinet can be chosen to accommodate BBU inside. The physical structures are shown
in the following figure.
Figure 6-4 Physical Structure of ZXSDR BS8906 Standalone Cabinet
1. Fan Control Element 2.B8200 3. Power Supply Unit 4. AC/DC Protection Module
5. Lightning Protection/MW Indoor Unit/SDH
6.2 Physical Indices
Table 6-1 BS8700 Site Support Cabinet Physical Indices
Name BC8910B BC8910A ZXSDR BS8906
Dimension (H*W*D)
(mm *mm*mm)
With silencer:
1600*700*780
Footprint: 700*700
800*600*600 670*300*525
Weight of full
configuration
without battery and
base
Iron:
215Kg
Aluminum:
180Kg
94Kg 35Kg
BBU Number 2 1 1
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Name BC8910B BC8910A ZXSDR BS8906
Battery Capacity 2*150AH N/A N/A
Reserved space for
transmission etc.
4U (With 2*150AH
battery)
11U (With 150AH
battery)
4U (AC)
8U (DC)
N/A
Note: 1. If needed, the base is configured. The base of BC8910B is 200mm in height and 20Kg in
weight. 2. One set of battery150AH is 185-200Kg in weight.
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7 Abbreviation Abbreviations Full Characteristics
3GPP 3rd
Generation Partnership Project
64QAM 64 grade Quadrature Amplitude Modulation
AMR Adaptive Multi Rate
BB Base Band
BBU Base Band processing Unit
BCCH Broadcast Control Channel
BITS Building Integrated Timing Supply
BPK Base band Processing type K for UMTS
BPL Base band Processing for LTE
BRACS Barrier Access Control Sub-system
BRS Barrier Sub-system
BSC Base Station Controller
BSP Board Support Package
BTS Base Transceiver Station
CAPEX Capital Expenditure
CC Control & Clock
CE Channel Element
CN Core Network
CPRI Common Public Radio Interface
CS Circuit Switch
CS Carrier Sector
DBS Data Base Sub-system
DL Down Link
EDGE Enhanced Data rates for GSM Evolution
E-EDGE Enhanced EDGE
EFR Enhanced Full Rate
FAM Fan Module
FE Fast Ethernet
FP Frame Protocol
FR Full Rate
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FS Fabric Switch
GE Gigabit Ethernet
GERAN GSM Edge Radio Access Network
GPS Global Positioning System
GSM Global System for Mobile communications
HR Half Rate
HSPA+ HSPA Evolution
IBW Instantaneous Bandwidth
LTE Long Term Evolution
MicroTCA Micro Telecommunications Computing Architecture
MIMO Multi Input Multi Output
MS/UE Mobile Station/User Equipment
MTBF Mean Time Between Failures
MTTR Mean Time To Recovery
OAM Operating And Maintenance
OPEX Operation Expenditure
OSS Operation Support Sub-system
PM Power Module
PS Packet Switch
PtM Point to Multi-point
PtP Point to Point
RF Radio Frequency
RNC Radio Network Controller
RRU Remote Radio Unit
SA Site Alarm
SCS System Control Sub-system
SDH Synchronous Digital Hierarchy
SDR Software Defined Radio
SE Site Alarm Extension
TAM Tower mounted Amplifier control Module
TMA Tower Mounted Amplifier
UBPG Universal Baseband Processing board for GSM
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UL Up Link
UTRAN UMTS Terrestrial Radio Access Network
WCDMA Wideband Code Division Multiple Access
WiMAX Worldwide Interoperability for Microwave Access
8 Attachment 1_E_UTRA Operation Band
E-UTRA Operating
Band
Uplink(UL) operating band
BS receive UE transmit
Downlink(DL) operating
band BS transmit UE
receive
FUL_low - FUL_high FDL_low - FDL_high
1 1920 MHz –1980 MHz 2110 MHz –2170 MHz
2 1850 MHz –1910 MHz 1930 MHz –1990 MHz
3 1710 MHz –1785 MHz 1805 MHz –1880 MHz
4 1710 MHz–1755 MHz 2110 MHz –2155 MHz
5 824 MHz–849 MHz 869 MHz–894MHz
6 830 MHz–840 MHz 875 MHz–885 MHz
7 2500 MHz–2570 MHz 2620 MHz–2690 MHz
8 880 MHz–915 MHz 925 MHz–960 MHz
9 1749.9 MHz–1784.9 MHz 1844.9 MHz–1879.9 MHz
10 1710 MHz–1770 MHz 2110 MHz–2170 MHz
11 1427.9 MHz –1447.9 MHz 1475.9 MHz–1495.9 MHz
12 699 MHz–716 MHz 729 MHz–746 MHz
13 777 MHz–787 MHz 746 MHz–756 MHz
14 788 MHz–798 MHz 758 MHz–768 MHz
15 Reserved Reserved
16 Reserved Reserved
17 704 MHz–716 MHz 734 MHz–746 MHz
18 815 MHz–830 MHz 860 MHz–875 MHz
19 830 MHz–845 MHz 875 MHz–890 MHz
20 832 MHz–862 MHz 791 MHz–821 MHz
21 1447.9 MHz–1462.9 MHz 1495.9 MHz–1510.9 MHz
22 3410 MHz–3490 MHz 3510 MHz–3590 MHz
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E-UTRA Operating
Band
Uplink(UL) operating band
BS receive UE transmit
Downlink(DL) operating
band BS transmit UE
receive
FUL_low - FUL_high FDL_low - FDL_high
23 2000 MHz–2020 MHz 2180 MHz–2200 MHz
24 1626.5 MHz–1660.5 MHz 1525 MHz–1559 MHz
25 1850 MHz–1915 MHz 1930 MHz–1995 MHz
26 814 MHz–849 MHz 859 MHz–894 MHz
27 807 MHz–824 MHz 852 MHz–869 MHz
28 703 MHz–748 MHz 758 MHz–803 MHz
29 N/A 717 MHz–728 MHz
…… …… ……
33 1900 MHz–1920 MHz 1900 MHz–1920 MHz
34 2010 MHz–2025 MHz 2010 MHz–2025 MHz
35 1850 MHz–1910 MHz 1850 MHz–1910 MHz
36 1930 MHz–1990 MHz 1930 MHz–1990 MHz
37 1910 MHz–1930 MHz 1910 MHz–1930 MHz
38 2570 MHz–2620 MHz 2570 MHz–2620 MHz
39 1880 MHz–1920 MHz 1880 MHz–1920 MHz
40 2300 MHz–2400 MHz 2300 MHz–2400 MHz
41 2496 MHz–2690 MHz 2496 MHz–2690 MHz
42 3400 MHz–3600 MHz 3400 MHz–3600 MHz
43 3600 MHz–3800 MHz 3600 MHz–3800 MHz
44 703 MHz–803 MHz 703 MHz–803 MHz