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RRU5905 Technical Specifications Contents 6.1.4.3.4 RRU5905 Technical Specifications 6.3.5.3.2.1 RRU Exterior 6.3.5.3.2.2 RRU Functions 6.3.5.3.2.4 RRU Ports 6.3.5.3.2.5 RRU Indicators

6.1.4.3.4 RRU5905 Technical Specifications An RRU5905 is a multimode radio remote unit (RRU). Adopting the software-defined radio (SDR) technology, an RRU5905 can work in different modes through software configurations.

Supported RATs and Frequency Bands The following table lists the RATs and frequency bands supported by an RRU5905. Table 1 RATs and frequency bands supported by an RRU5905 Frequency Band (MHz)

Type

RRU5905 1800

Receive Frequency Band (MHz)

Transmit Frequency Band (MHz)

RAT

IBW (MHz)

1710 to 1785

1805 to 1880

GSM, LTE FDD, GL, LM

45

RF Specifications Table 2

lists radio frequency (RF) specifications of an RRU5905.

NOTE: •

ATBR in the Transmit and Receive Channels column indicates that this RF module has A transmit channels and B receive channels.

•

CxD W in the Output Power column indicates that this RF module is configured with C transmit channels and the maximum output power of each transmit channel is D W.

•

EF MSR indicates that E and F data is carried on the same transmit channel of an RF module.

•

EF non-MSR indicates that E and F data is carried on two different transmit channels of an RF module.

•

GSM receiver sensitivity is measured, as recommended in 3GPP TS 51.021, at the antenna connector on condition that the channel rate reaches 13 kbit/s and the bit error rate (BER) is not higher than 2%.

•

LTE FDD receiver sensitivity is measured, as recommended in 3GPP TS 36.104, under a 5 MHz channel bandwidth based on the FRC A1-3 in Annex A.1 (QPSK, R = 1/3, 25 RBs) standard.

•

NB-IoT receiver sensitivity is measured, as recommended in 3GPP TS 36.104, under a 200 KHz channel bandwidth and a 15 KHz subcarrier spacing based on the FRC A14-1 in Annex A.14 (π/2 BPSK, R = 1/3, 1 RB) standard.

•

The typical power consumption for an RRU module is measured when the RRU load reaches 50% and the ambient temperature is 25°C.

Table 2 RF specifications of an RRU5905 Type

Transmit Capacity and Receive Channels

RRU5905 2T2R

GSM: 8 TRXs LTE FDD: 2 carriers, the bandwidth per carrier is 1.4, 3, 5, 10, 15, or 20 MHz. NB-IoT: 1 carrier

Receiver Sensitivity (dBm) Receiver Sensitivity with One Antenna

Receiver Sensitivity with Two Antennas

GSM: 114.0 LTE FDD: -106.6 NB-IoT: 127.3

GSM: 116.8 LTE FDD: -109.4 NB-IoT: 130.1

Output Power

Power Consumption for an RRU

The RRU5905 supports the maximum power configuration of 2x80 W. For typical configurations, see

900 EGSM: 370 W 900 PGSM: 370 W 1800 MHz: 370 W

Typical Power Configuration for RRUs (Excluding NB-IoT) and NB-IoT Typical Power Configurations (RRU).

Engineering Specifications The following table lists the equipment specifications of an RRU5905.

Table 3 Equipment specifications of an RRU5905 Type

Input Power

Dimensions (H x W x D)

Weight (kg)

RRU5905

-48 V DC; voltage range: -36 V DC to -57 V DC

400 mm x 300 mm x 100 15 (without the housing) mm (without the housing)

NOTE: The RRU5905 supports AC power supply when connected to an external AC/DC power module or an OPM15M. For details, see AC/DC Power Module User Guide and OPM15M User Guide.

The following table lists the environmental specifications of an RRU5905. Table 4 Environmental specifications of an RRU5905 Type

Operating Temperature

RRU5905 • •

Relative Humidity

Without solar 5% RH to 100% radiation: -40°C RH to +55°C With solar radiation: -40°C to +50°C

Absolute Humidity

Atmospheric Pressure

1 g/m3 to 30 g/m3

70 kPa to 106 kPa

NOTE: According to the installation scenario, traffic load, and carrier configuration, the output power of some RRUs may temporarily decrease when they work within the range of 10°C higher than the allowed highest temperature.

The following table lists the compliance standards for an RRU5905. Table 5 Compliance standards for an RRU5905 Item

RF

Standard • • •

Operating environment

3GPP TS 45.005 3GPP TS 36.141 3GPP TS 37.141

ETSI EN 300019-1-4 V2.1.2 (2003-04) Class 4.1: "Nonweatherprotected locations"

Table 5 Compliance standards for an RRU5905 Item

Standard

Storage environment

ETSI EN300019-1-1 V2.1.4 (2003-04) class1.2 "Weather protected, not temperature-controlled storage locations" NOTE: • •

The validity period is one year. The product can function properly within the validity period if the storage environment meets the preceding standards.

Shockproof protection

NEBS GR63 zone4

Ingress Protection Rating

IP65

Surge protection

• • • • • • • • •

Table 6

IEC 62305-1 Protection against lightning - Part 1: General principles IEC 62305-3 Protection against lightning - Part 3: Physical damage to structures and life hazard IEC 62305-4 Protection against lightning - Part 4: Electrical and electronic systems within structures ITU-T K.35 Bonding configurations and earthing at remote electronic sites ITU-T K.56 Protection of radio base stations against lightning discharges ITU-T K.97 Lightning protection of distributed base stations ETSI EN 300 253 Environmental Engineering(EE): Earthing and bonding configuration inside telecommunications centers YD/T 2324-2011 Lightning protection requirements and test methods for Radio Base Stations (RBSs) GB 50689-2011 Code for design of lightning protection and earthing engineering for telecommunication bureaus (stations)

lists the surge protection specifications of ports on an RRU5905.

NOTE: • •

Unless otherwise specified, the surge protection specifications depend on the surge waveform of 8/20 μs. All the surge current items, unless otherwise specified as Maximum discharge current, refer to Nominal discharge current.

Table 6 Surge protection specifications of ports on an RRU5905 Port

Surge Protection Mode

Surge Protection Specifications

Power supply port

Surge current

20 kA

Specifications of CPRI Ports The following table lists the specifications of CPRI ports on an RRU5905. Table 7 Specifications of CPRI ports on an RRU5905 Type

Number of CPRI Ports

CPRI Data Rate (Gbit/s)

Topology

Cascading Level

RRU5905

2

1.25, 2.5, 4.9, or 9.8

Star, chain, or CPRI MUX: dual-star • GL: 4 • LM: 4

Maximum Distance from a BBU (km)

GL: The maximum distance from the BBU varies with the types of LTE BBPs configured. • When the LBBPc, or LBBPd1 is configured: 20 • When the LBBPd2, UBBPd3, UBBPd4, UBBPd5, UBBPd6, or UBBPe is configured: 40 • When the LBBPd3 is configured ▪ 40 if the cell

Table 7 Specifications of CPRI ports on an RRU5905 Number of CPRI Ports

Type

CPRI Data Rate (Gbit/s)

Topology

Cascading Level

Maximum Distance from a BBU (km)

number is less than or equal to 3 ▪ 20 if the cell number is greater than or equal to 4 LM: 20

Antenna Capability The following table lists the antenna capability of an RRU5905. Table 8 Antenna capability of an RRU5905 Type

TMA Support

Supported RET Antenna

RRU5905

Supported

AISG2.0 and AISG1.1

NOTE: For RF modules supporting RET antennas, the feeding voltage is 12 V and feeding current is 2.3 A.

Parent Topic: Technical Specifications of RRUs Copyright © Huawei Technologies Co., Ltd. Copyright © Huawei Technologies Co., Ltd. < Previous topic Next topic >

6.3.5.3.2.1 RRU Exterior This section describes the exterior and dimensions of an RRU. Figure 1

shows the exterior of an RRU.

Figure 1 RRU5905(1.8G)&RRU5905w&RRU5305(1.4G) exterior

Figure 2 RRU5905(900M) exterior

Figure 3

shows RRU dimensions.

Figure 3 RRU dimensions

You can obtain the RRU name, RRU frequency band and power supply information from the nameplate on the cover plate. Figure 4 shows the positions of the nameplate on the RRU. NOTE: The actual nameplate may differ from what is shown in the figure.

Figure 4 Positions of the nameplate

(1) Nameplate

(2) Module name

(3) Frequency band

Copyright © Huawei Technologies Co., Ltd. Copyright © Huawei Technologies Co., Ltd. Next topic >

(4) Power supply type

6.3.5.3.2.2 RRU Functions This section describes main functions of an RRU. The Remote Radio Unit (RRU) consists of the high-speed interface unit, signal processing unit, power amplifier, duplexer, extension ports, and power module. shows the functional structure of an RRU5905&RRU5905w and Figure 2 shows the functional structure of an RRU5305 (1.4G). Figure 1

Figure 1 Functional structure of the RRU5905&RRU5905w

Figure 2 Functional structure of an RRU5305(1.4G)

NOTE: For details about the extension ports, see RRU Ports.

The RRU5905 and RRU5905w provide the following functions: •

Receives downlink baseband data from the BBU and sends uplink baseband data to the BBU.

•

Receives RF signals from the antenna system, down-converts the signals to intermediate frequency (IF) signals, amplifies the IF signals, performs analog-todigital conversion, and up-converts RF signals to the transmit (TX) band.

•

Multiplexes receive (RX) and TX signals on the RF channel so that these signals can share the same antenna channel, and filters the RX and TX signals.

•

Provides a built-in Bias Tee (BT). The built-in BT couples RF signals and OOK signals and transmits them through the TX/RX port A. The built-in BT also supplies power to the tower mounted amplifier (TMA).

•

The RRU can work with the Monitoring Extension Box (MEB). The MEB can transmit external RS-485 communication signals and dry node monitoring signals into the RRU, implementing information monitoring and reporting. For details about the MEB, see MEB06D User Guide.

•

When an RRU is equipped with an AC/DC power module, the RRU and the power module together are called an AC RRU. For details about the AC/DC power module, see OPM15M(Ver.B) User Guide or OPM50M(Ver.B) User Guide.

The RRU5305(1.4G) provides the following functions: •

Receives downlink baseband data from the BBU to communicate with the BBU.

•

The transmit (TX) channel filters downlink signals, performs analog-to-digital conversion, and up-converts RF signals to the TX band.

•

The TX channel filters TX signals.

•

Provides a built-in BT. RF ports on the RRU can transmit RF service signals. Besides, RF port A on the RRU can use the built-in BT to output OOK signals and supply DC power to the TMA.

•

The RRU can work with the Monitoring Extension Box (MEB). The MEB can transmit external RS-485 communication signals and dry node monitoring signals into the RRU, implementing information monitoring and reporting. For details about the MEB, see MEB06D User Guide.

•

When an RRU is equipped with an AC/DC power module, the RRU and the power module together are called an AC RRU. For details about the AC/DC power module, see OPM15M(Ver.B) User Guide or OPM50M(Ver.B) User Guide.

Copyright © Huawei Technologies Co., Ltd. Copyright © Huawei Technologies Co., Ltd. < Previous topic Next topic >

6.3.5.3.2.4 RRU Ports This section describes ports on the RRU panels. An RRU has a bottom panel, cabling cavity panel, and indicator panel.

and Figure 2 show ports on the RRU5905&RRU5905w and RRU5305 (1.4G) panels, respectively. Figure 1

Figure 1 Ports on the RRU5905&RRU5905w panels

Figure 2 Ports on the RRU5305 (1.4G) panels

and Table 2 show ports at the bottom, ports in the cabling cavity, and indicators on RRU5905&RRU5905w and RRU5305 (1.4G), respectively. Table 1

Table 1 Ports and indicators on the RRU5905&RRU5905w panels Item

Silkscreen

Remarks

(1) Ports in the cabling cavity

RTN(+)

Power supply socket, For details about RRU power cable appearance and specifications, see RRU Power Cable.

NEG(-) CPRI0

Optical/electrical port 0, connected to the BBU or an upper-level RRU

CPRI1

Optical/electrical port 1, connected to a lowerlevel RRU or the BBU

Table 1 Ports and indicators on the RRU5905&RRU5905w panels Item

Silkscreen

Remarks

(2) Bottom ports

A T/R

TX/RX port A (4.3-10 female connector), supporting RET signal transmission

B T/R

TX/RX port B (4.3-10 female connector)

RET

Communication port for the RET antenna, supporting RET signal transmission

RUN

For details, see RRU Indicators.

(3) Indicator

ALM ACT VSWR CPRI0 CPRI1

Table 2 Ports and indicators on the RRU5305 (1.4G) panels Item

Silkscreen

Remarks

(1) Ports in the cabling cavity

RTN(+)

Power supply socket, For details about RRU power cable appearance and specifications, see RRU Power Cable.

NEG(-)

(2) Bottom ports

(3) Indicator

CPRI0

Optical/electrical port 0, connected to the BBU or an upper-level RRU

CPRI1

Optical/electrical port 1, connected to a lowerlevel RRU or the BBU

AT

TX port A (4.3-10 female connector), supporting RET signal transmission

BT

TX port B (4.3-10 female connector)

RET

Communication port for the RET antenna, supporting RET signal transmission

RUN

For details, see RRU Indicators.

ALM

Table 2 Ports and indicators on the RRU5305 (1.4G) panels Item

Silkscreen

Remarks

ACT VSWR CPRI0 CPRI1 NOTE: • •

The port for transmitting RET signals is determined by the software. Connect the CPRI0 port to the BBU by default in the single-mode scenario.

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6.3.5.3.2.5 RRU Indicators This section describes six indicators on an RRU. They indicate the running status of the RRU. For detailed positions of RRU indicators, see RRU Ports. Table 1

describes RRU indicators.

Table 1 RRU Indicators Indicator

Color

Status

Meaning

RUN

Green

Steady on

The power input is available, but the board is faulty.

Steady off

No power input is available, or the board is faulty.

Blinking (on for 1s The board is running properly. and off for 1s) Blinking (on for 0.125s and off for 0.125s)

The board software is being loaded, or the board is not working.

Table 1 RRU Indicators Indicator

Color

Status

Meaning

ALM

Red

Steady on

Alarms are generated, and the module must be replaced.

Blinking (on for 1s Alarms are generated. The alarms may be caused by faults on the related board or ports. and off for 1s) Therefore, you need to locate the fault before deciding whether to replace the module.

ACT

Green

Steady off

No alarms are generated.

Steady on

The board is working properly when TX channels are enabled or software is being loaded to a board that is not started.

Blinking (on for 1s The board is running with TX channels and off for 1s) disabled. VSWR

Red

Steady off

No voltage standing wave ratio (VSWR) alarm is generated.

Blinking (on for 1s VSWR alarms are generated on the B T/R or B and off for 1s) T port.

CPRI0

CPRI1

Red and green

Steady on

VSWR alarms are generated on the A T/R or A T port.

Blinking (on for 0.125s and off for 0.125s)

VSWR alarms are generated on the A T/R and B T/R or A T and B T ports.

Steady green

The CPRI link is running properly.

Steady red

An optical module fails to receive or transmit signals possibly because the optical module is faulty or the optical fiber is broken.

Blinking red (on for 1s and off for 1s)

The CPRI link is out of lock because of faults on the mutual lock of dual-mode clock sources or mismatched data rates on CPRI ports.

Steady off

The optical module cannot be detected or is powered off.

Steady green

The CPRI link is running properly.

Table 1 RRU Indicators Indicator

Color

Red and green

Status

Meaning

Steady red

An optical module fails to receive or transmit signals possibly because the optical module is faulty or the optical fiber is broken.

Blinking red (on for 1s and off for 1s)

The CPRI link is out of lock because of faults on the mutual lock of dual-mode clock sources or mismatched data rates on CPRI ports.

Steady off

The optical module cannot be detected or is powered off.

NOTE: VSWR indicators on RRUs providing one or more than two TX channels have two types of status: • •

Steady off: No VSWR alarm is generated. Steady on: VSWR alarms are generated on one or more ports.

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