pRRU5921

V100R015C10
Description

Issue 03
Date 2019-06-06

HUAWEI TECHNOLOGIES CO., LTD.

Copyright © Huawei Technologies Co., Ltd. 2019. All rights reserved.
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Huawei Technologies Co., Ltd.

Address: Huawei Industrial Base
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Website: http://www.huawei.com
Email: support@huawei.com

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 pRRU5921
Description Contents

Contents

1 Introduction .............................................................................................................................. 1
1.1 Appearance............................................................................................................................................................ 1
1.2 Physical Ports ........................................................................................................................................................ 2

2 Technical Specifications .......................................................................................................... 5

2.1 Modes and Frequency Bands ................................................................................................................................. 5
2.2 Capacity ................................................................................................................................................................ 6
2.3 Receiver Sensitivity ............................................................................................................................................... 7
2.4 TX/RX Channel and Maximum Output Power ....................................................................................................... 7
2.5 Antenna Specifications .......................................................................................................................................... 8
2.6 Power Consumption .............................................................................................................................................. 8
2.7 Equipment Specifications ...................................................................................................................................... 8
2.8 CPRI Port Specifications ....................................................................................................................................... 8
2.9 Environment Specifications ................................................................................................................................... 9
2.10 Standards Compliance ........................................................................................................................................10

3 Acronyms and Abbreviations ............................................................................................... 12

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pRRU5921
Description 1 Introduction

1 Introduction

The pRRU processes RF signals. It provides the following functions:

 Modulates baseband signals to a transmit frequency band, filters and amplifies these
signals, and sends them to the antenna for transmission.
 Receives RF signals from antennas, filters and amplifies these signals, down-converts
the signals, converts them to digital signals, and sends them to the BBU for processing.
 Transmits CPRI data over Ethernet cables or optical fibers.
 Uses internal antennas.
 Supports PoE and DC power supply.
 Supports flexible configuration for multi-mode multi-band operation.
1.1 Appearance
1.2 Physical Ports

1.1 Appearance
Figure 1-1 shows the appearance of a pRRU5921.

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Description 1 Introduction

Figure 1-1 pRRU5921 appearance

1.2 Physical Ports

Figure 1-2 shows the ports and indicators on a pRRU5921.

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Description 1 Introduction

Figure 1-2 Ports and indicators on a pRRU5921

(1) Anti-theft lock (2) ETH CPRI_E1 (3) CPRI RX/TX (4) PoE/DC CPRI_E0

Table 1-1 describes the ports on a pRRU5921.

Table 1-1 Ports

Silkscreen Description
PoE/DC CPRI_E0 Used for connecting to an electrical RHUB or an optical
NOTE
RHUB.
The PoE/DC silkscreen indicates  When connected to an electrical RHUB, this port is
that the CPRI_E0 port supports used for CPRI data transmission and PoE power
PoE and DC power supply. supply.
 When connected to an optical RHUB, this port is used
only for DC power supply and does not support data
transmission.
ETH CPRI_E1 In DC power supply mode, if the pRRU is connected to an
NOTE
optical RHUB, this port can be used for cascading with a
The PoE silkscreen indicates that
pRRU. In this case, the two cascaded pRRUs are 20 m
the CPRI_E1 port supports PoE apart from each other at most, and must have total power
power supply. consumption of no more than 130 W and run different
network standards.
CPRI RX/TX Used for connecting to an optical RHUB to transmit CPRI
data

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Description 1 Introduction

Silkscreen Description
Used for anti-theft of the pRRU5921. Anti-theft locks are
not delivered and must be prepared by customers if
required.
Used for preventing device disassembly

In PoE power supply mode, the pRRU5921 can only be connected to an electrical RHUB, and
the CPRI RX/TX port cannot be connected to an optical module. In DC power supply mode,
the pRRU5921 can only be connected to an optical RHUB, and the ETH CPRI_E1 and DC
CPRI_E0 ports cannot be connected to an electrical RHUB.

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pRRU5921
Description 2 Technical Specifications

2 Technical Specifications

2.1 Modes and Frequency Bands

2.2 Capacity
2.3 Receiver Sensitivity
2.4 TX/RX Channel and Maximum Output Power
2.5 Antenna Specifications
2.6 Power Consumption
2.7 Equipment Specifications
2.8 CPRI Port Specifications
2.9 Environment Specifications
2.10 Standards Compliance

2.1 Modes and Frequency Bands

Table 2-1 lists the modes and frequency bands supported by a pRRU5921.

Table 2-1 Modes and frequency bands

Frequency Mode RX Frequency TX Frequency IBW (MHz)

Band (MHz) Band (MHz) Band (MHz)
900 GSM, UMTS, 880 to 915 925 to 960 20
LTE FDD, LTE
NB-IoT, GU,
GL, GM, UL,
UM, LM, GUL,
GUM, GLM,
ULM, GULM
1800 GSM, LTE 1710 to 1785 1805 to 1880 22.5
FDD, LTE
NB-IoT, GL,
GM, LM, GLM

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Description 2 Technical Specifications

Frequency Mode RX Frequency TX Frequency IBW (MHz)

Band (MHz) Band (MHz) Band (MHz)
2100 UMTS, LTE 1920 to 1980 2110 to 2170 25
FDD, LTE
NB-IoT, UM,
UL, LM, ULM
2600 LTE（TDD）， 2496 to 2690 2496 to 2690 100
NR，TDLN

 The pRRU5921 supports only RF input in GSM mode.

 The pRRU5921 is equipped with internal antennas.

2.2 Capacity
Table 2-2 Capacity

Mode Capacity
GSM 2 subbands (4 carriers on each subband)
UMTS 4 carriers
LTE FDD 3 carriers
LTE TDD 3 carriers
GSM+UMTS 2 GSM subbands + 4 UMTS carriers
GSM+LTE FDD+LTE TDD 2 GSM subbands + 3 LTE FDD carriers + 3 LTE
TDD carriers
UMTS+LTE FDD+LTE TDD 4 UMTS carriers + 3 LTE FDD carriers + 3 LTE
TDD carriers
GSM+UMTS+LTE FDD+LTE TDD 2 GSM subbands + 4 UMTS carriers + 3 LTE
FDD carriers + 3 LTE TDD carriers
NR 1 carriers (100MHz)

LTE（TDD）+NR  1 LTE（TDD）+1 NR（80MHz）

In BBU access scenarios, pRRU capacity specifications are calculated based on carriers. In RF input
scenarios, pRRU capacity specifications are calculated based on subbands.

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2.3 Receiver Sensitivity

Table 2-3 Receiver sensitivity

Mode Single-Antenna Receiver Dual-Antenna Receiver

Sensitivity (dBm) Sensitivity (dBm)
UMTS -112 -114.8
LTE FDD -94 -96.8
LTE TDD -94 -96.8
NR -94 -96.8

 UMTS receiver sensitivity is measured at the antenna connector, as recommended in 3GPP TS

25.104, on the condition that the channel rate is 12.2 kbit/s and the BER does not exceed 0.001.
 LTE FDD receiver sensitivity is measured, as recommended in 3GPP TS 36.104, under a 5 MHz
bandwidth based on the FRC A1-3 in Annex A.1 (QPSK, R = 1/3, 25 RBs) standard.
 LTE TDD receiver sensitivity is measured, as recommended in 3GPP TS 36.104, under a 5 MHz
bandwidth based on the FRC A1-3 in Annex A.1 (QPSK, R = 1/3, 25 RBs) standard.
 In GSM (RF input) networking, the GSM mode does not involve receiver sensitivity.

2.4 TX/RX Channel and Maximum Output Power

Table 2-4 TX/RX channel

Mode TX/RX Channel

GSM 1T1R
UMTS 1T1R/1T2R
LTE FDD 2T2R
LTE TDD 2T2R
NR 2T2R

Table 2-5 Maximum output power

Frequency Band (MHz) Maximum Output Power (mW)

900 2x100 mW
1800/2100/2600 2x250 mW

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Description 2 Technical Specifications

 ATBR in the TX/RX Channel column indicates that the RF module has A TX channels and B RX
channels.
 CxD in the Maximum Output Power column indicates that the RF module has C TX channels,
each with a maximum output power of D mW.

2.5 Antenna Specifications

Table 2-6 Internal antenna specifications

Frequency Band Gain (dBi) Polarization Directionality

(MHz) Mode
900 1.5 Linear Omnidirectional
1800/2100/2600 3 Linear Omnidirectional

2.6 Power Consumption

Table 2-7 Power consumption

Typical Power Consumption (50% Maximum Average Power

Load) (W) Consumption (100% Load) (W)
55 65

2.7 Equipment Specifications

Table 2-8 Equipment specifications

Input Voltage Dimensions (H x W x D) Weight

PoE/DC: –48 V DC 200 mm x 200 mm x 58 mm ≤ 2.5 kg

2.8 CPRI Port Specifications

Table 2-9 CPRI port specifications

Port Type Number of CPRI CPRI Port Rate CPRI Topology

Ports (Gbit/s)

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Description 2 Technical Specifications

Port Type Number of CPRI CPRI Port Rate CPRI Topology

Ports (Gbit/s)
RJ45 (CPRI_E0) 1 10.1 Star topology
RJ45 (CPRI_E1) 1 1.25/3.072/10.1 Chain topology
Optical 1 10.1 Star topology

Table 2-10 Cascading level and remote transmission capability

Port Type Cascading Level Remote Transmission Capability

RJ45 (CPRI_E0) N/A At least CAT6a S/FTP shielded Ethernet
cables are used. The maximum Ethernet
cable length is 100 m and can be extended
to 200 m through a 10.1 Gbit/s extender.
RJ45 (CPRI_E1) 2 When a pRRU is cascaded, the maximum
distance between cascaded equipment is 20
m.
Optical N/A The maximum distance between a pRRU
and an RHUB is 200 m if a 1.5 mm2
optical/electrical hybrid cable is used.

2.9 Environment Specifications

Table 2-11 Environment specifications

Item Specifications
Operating temperature –5°C to +40°C
Storage temperature –40°C to +70°C
Relative humidity 5% RH to 95% RH
Absolute humidity 1 g/m3 to 30 g/m3
Atmospheric pressure 70 kPa to 106 kPa
IP rating IP20
Operating environment EUROPEAN ETSI EN 300 019-1-3 Class 3.1
"Temperature-controlled locations"

Storage environment ETSI EN 300 019-1-1 V2.1.4 (2003-04) Class 1.2

"Weatherprotected, not temperature-controlled storage
locations"
Transportation ETSI EN 300 019-1-2 V2.1.4 (2003-04) Class 2.3 "Public

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Description 2 Technical Specifications

Item Specifications
environment transportation"
Anti-seismic  ETSI 300 019-1-3 Class 3.2
performance  IEC 60068-2-57 (1999-11) Environmental testing - Part
2-57: Tests - Test Ff: Vibration - Time-history method
 YD5083-99: Interim Provisions for Test of Anti-seismic
Performance of Telecommunications Equipment (telecom
industry standard in the People's Republic of China)
 GR63 5.4.1 Zone 4: NEBSTM Requirements: Physical
Protection
Protection from damp Class B
heat, salt mist, and mold
growth

2.10 Standards Compliance

Table 2-12 Standards compliance

Item Specifications
EMC The base station meets the EMC requirements and complies with the
following standards:
 CISPR 22 Class B
 VCCI Class B
 GB 9254 Class B
 IEC 61000-3-2
 IEC 61000-3-3
 IEC 61000-4-2
 IEC 61000-4-3
 IEC 61000-4-4
 IEC 61000-4-6
 IEC 61000-4-11
3GPP  3GPP TS 36.104
 3GPP TS 25.104
 3GPP TS 36.141
 3GPP TS 25.141
 3GPP TS 37.104
 3GPP TS 37.141
Environment protection RoHS
standard

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Description 2 Technical Specifications

Item Specifications
Surge protection standard N/A
Protection standard  YD 5098-2001
 IEC 61000-4-5
 ETSI EN 301 489
 ITU-T K.20
Safety standard  GB 4943
 IEC/EN/UL 60950-1
 IEC/EN 60215
Environment standard  ETSI EN 300 019-2-1
 ETSI EN 300 019-2-2
 ETSI EN 300 019-2-3
 IEC 60068-2

ETL N/A

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pRRU5921
Description 3 Acronyms and Abbreviations

3 Acronyms and Abbreviations

Table 3-1 Acronyms and abbreviations

Acronym and Abbreviation Full Spelling

3GPP 3rd Generation Partnership Project
CPRI Common public radio interface
DC Direct current
MIMO Multiple-input multiple-output
PSU Power supply unit
pRRU Pico remote radio unit
RF Radio frequency
RHUB RRU HUB

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