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GRFU Description

Issue V1.3

Date 2011-09-09

HUAWEI TECHNOLOGIES CO., LTD.



Issue V1.3 (2011-09-09) Huawei Proprietary and ConfidentialCopyright © Huawei Technologies Co., Ltd

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Copyright © Huawei Technologies Co., Ltd. 2011. All rights reserved.No part of this document may be reproduced or transmitted in any form or by any means without priorwritten consent of Huawei Technologies Co., Ltd.

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and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.

All other trademarks and trade names mentioned in this document are the property of their respectiveholders.

NoticeThe purchased products, services and features are stipulated by the contract made between Huawei andthe customer. All or part of the products, services and features described in this document may not bewithin the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements,information, and recommendations in this document are provided "AS IS" without warranties, guarantees orrepresentations of any kind, either express or implied.

The information in this document is subject to change without notice. Every effort has been made in thepreparation of this document to ensure accuracy of the contents, but all statements, information, andrecommendations in this document do not constitute a warranty of any kind, express or implied.

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Address: Huawei Industrial Base

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GRFU Description Contents


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Contents

1 Introduction ................................................................................................................................... 1

1.1 Appearance .................................................................................................................................................... 1

1.2 Physical Ports ................................................................................................................................................ 1

2 Technical Specifications ............................................................................................................ 3

2.1 Frequency Band ............................................................................................................................................ 3

2.2 Capacity .......................................................................................................................................................... 4

2.3 Receiver Sensitivity .............................................................. ............................................................... .......... 4

2.4 Output Power ................................................................................................................................................. 4

2.5 Power Consumption ............................................................. ............................................................... .......... 6

2.5.1 Power Consumption of the BTS3900 ........................................................ ........................................ 6

2.5.2 Power Consumption of the BTS3900A ............................................................................................. 7

2.5.3 Power Consumption of the BTS3900L .............................................................. ................................ 8

3 Acronyms and Abbreviations ................................................................................................... 9



GRFU Description 1 Introduction


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1 Introduction

The GSM Radio Frequency Unit (GRFU) is a Radio Frequency (RF) unit based on themulti-carrier technology. GRFUs are installed in the indoor macro base station(including the BTS3900 and the BTS3900L) and the outdoor macro base station(namely, the BTS3900A). They are usually used in scenarios requiring large capacity.

1.1 AppearanceFigure 1-1 shows the exterior of the GRFU.

Figure 1-1 Exterior of the GRFU

1.2 Physical PortsTable 1-1 shows the physical ports of the GRFU.



GRFU Description 1 Introduction


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Table 1-1 Physical ports of the GRFU

Port Connector Quantity Function

Common publicradio interface(CPRI) port

SFP female 2 Connects to the basebandunit (BBU3900), or toanother RRU forcascading

RF port DIN female 2 Connects to an antenna

Interconnectionport for receivingRF signals

SMA 2 Transmits and receives thediversity signals receivedthrough an antennachannel

Power supplysocket

3V3 terminal 1 Receives –48 V DC power

Monitoring port RJ45 1 Port for monitoring andmaintenance



GRFU Description 2 Technical Specifications


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2 Technical Specifications

2.1 Frequency Band

Table 2-1 GRFU V1 frequency band

FrequencyBand

RX Frequency Band (MHz) TX Frequency Band (MHz)

1900M 1,850 –1,890 1,930 –1,970

1,870 –1,910 1,950 –1,990

NOTE

GRFU V1 modules supporting other frequency bands are replaced with GRFU V2 or V2a modulesfor delivery.

Table 2-2 GRFU V2 frequency band

FrequencyBand


900M PGSM 890 –915 935 –960

900M EGSM 880 –915 925 –960

1800M 1,710 –1,770 1,805 –1,865

1,725 –1,785 1,820 –1,880

Table 2-3 GRFU V2a frequency band

FrequencyBand


900M EGSM 885 –910 930 –955

1800M 1,710 –1,755 1,805 –1,850





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2.2 Capacity

Table 2-4 GRFU capacity

Item Specification

GRFU A GRFU supports a maximum of six carriers.

2.3 Receiver Sensitivity

Table 2-5 GRFU V1 receiver sensitivity

Frequency Band 1-Way ReceiverSensitivity (dBm)

2-Way Receiver Sensitivity(dBm)

1900MHz -113 -116

Table 2-6 GRFU V2 receiver sensitivity

Frequency Band 1-Way Receiver Sensitivity(dBm)


900M EGSM -113.3 -116.3

900M PGSM/1800M

-113.5 -116.5

Table 2-7 GRFU V2a receiver sensitivity

Frequency Band 1-Way ReceiverSensitivity (dBm)


900M EGSM/1800M

-113.5 -116.5

2.4 Output PowerNOTE

For the RF standards, see EN 301 502 V9.2.1 .

Table 2-8 Typical GRFU V1 configurations (1900MHz)

Number ofCarriers

BCCH Carrier OutputPower (Power SharingDisabled)

BCCH Carrier Output Power(Power Sharing Enabled)

S1 60 W (GMSK)/40 W (8PSK)*1

60 W (GMSK)/40 W (8PSK) * 1





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Number ofCarriers



S2 40 W (GMSK)/26 W (8PSK) 40 W (GMSK)/26 W (8PSK)




S6 10 W (GMSK)/6.6 W (8PSK) 16 W (GMSK)/10 W (8PSK)

NOTE

The maximum output power of S1 is 60 W. If 1 x 60 W is desired, you must add the license for usingthe 60 W output power, otherwise, S1 will be 1 x 40 W.


Number ofCarriers



S1 60 W (GMSK)/60 W (8PSK)*1*2

60 W (GMSK)/60 W (8PSK) *1*2

S2 40 W (GMSK)/40 W (8PSK) *2 40 W (GMSK)/40 W (8PSK) *2

S3 27 W (GMSK)/27 W (8PSK) *2 31 W (GMSK)/31 W(8PSK) *2




NOTE


For S1, S2, and S3, the 8PSK output power is the same as the GMSK output power with theimprovement in hardware capability.

For S4, S5, and S6, the 8PSK output power is the same as the GMSK output power with the optionalfeature GBFD-118104 Enhanced EDGE Coverage enabled.


Number ofCarriers





S3 27 W(GMSK)/18 W (8PSK) 31 W (GMSK)/20 W (8PSK)

S4 20 W(GMSK)/20 W (8PSK) *2 27 W (GMSK) / 27 W (8PSK) *2





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Number ofCarriers



S5 16 W (GMSK)/16 W (8PSK) *2 20 W (GMSK) / 20 W (8PSK) *2


NOTE


For S4, S5, and S6, the 8PSK output power is the same as the GMSK output power with the optionalfeature GBFD-118104 Enhanced EDGE Coverage enabled.

2.5 Power Consumption2.5.1 Power Consumption of the BTS3900

NOTE

Multi-carrier intelligent voltage regulation, TRX working voltage adjustment, discontinuoustransmission (DTX), power control, and power sharing are enabled.

The power consumption listed in this section refers to the power consumption of BTS3900s with -48V DC.

TOC refers to the output power at the duplex port on the BTS .

Table 2-11 Power consumption of the BTS3900 that is configured with GRFUs (V1,1900MHz)

Configuration Typical PowerConsumption (W)

Maximum PowerConsumption (W)

S4/4/4, TOC = 20 W 710 1,310

S6/6/6, TOC = 16 W 710 1,370


Configuration Typical Power

Consumption (W)

Maximum Power

Consumption (W) S4/4/4, TOC = 20 W 680 1,300

S6/6/6, TOC = 20 W 710 1,190




S4/4/4, TOC = 20 W 670 1,290





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S6/6/6, TOC = 20 W 770 1,270

2.5.2 Power Consumption of the BTS3900ANOTE

Multi-carrier intelligent voltage regulation, TRX working voltage adjustment, DTX, power control,and power sharing are enabled.

The power consumption listed in this section refers to the power consumption of BTS3900s with AC power supply.


Table 2-14 Power consumption of the BTS3900A that is configured with GRFUs (V1,1900MHz)



S4/4/4, TOC = 20 W 790 1,470

S6/6/6, TOC = 16 W 790 1,540




S4/4/4, TOC = 20 W 760 1,470

S6/6/6, TOC = 20 W 790 1,340




S4/4/4, TOC = 20 W 750 1,450

S6/6/6, TOC = 20 W 860 1,430





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2.5.3 Power Consumption of the BTS3900LNOTE

Multi-carrier intelligent voltage regulation, TRX working voltage adjustment, DTX, power control,

and power sharing are enabled. The power consumption listed in this section refers to the power consumption of BTS3900Ls with

-48 V DC.


Table 2-17 Power consumption of the BTS3900L that is configured with GRFUs (V2)



900M S4/4/4 + 1800MS8/8/8, TOC = 20 W

1,800 3,730



GRFU Description 3 Acronyms and Abbreviations


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3 Acronyms and Abbreviations

Table 3-1 Acronyms and abbreviations

Acronym andAbbreviation

Full Name

DTX Discontinuous Transmission

GATM GSM Antenna and TMA Control Module

GRFU GSM Radio Frequency Unit

PBT Power Boost Technology

RF Radio Frequency

RRU Remote RF Unit

TOC Transmit Power at the Top of Cabinet

http://3ms.huawei.com/term/docMaintain/termOperate.do?method=listTermAndDefinition&f_id=20081203005260&fd_id=47028&node_id=1-9&searchType=fulltext&searchValue=DTX&caseSensitive=

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