GRFU Description

GRFU Description

Issue

V1.3

Date

2011-09-09

HUAWEI TECHNOLOGIES CO., LTD.

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 prior written consent of Huawei Technologies Co., Ltd.

Trademarks and Permissions 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 respective holders.

Notice The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within 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 or representations of any kind, either express or implied. The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute a warranty of any kind, express or implied.

Huawei Technologies Co., Ltd. Address:

Huawei Industrial Base Bantian, Longgang Shenzhen 518129 People's Republic of China

Website:

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Email:

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Issue V1.3 (2011-09-09)

Huawei Proprietary and Confidential Copyright © Huawei Technologies Co., Ltd

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GRFU Description

Contents

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

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GRFU Description

1 Introduction

1

Introduction

The GSM Radio Frequency Unit (GRFU) is a Radio Frequency (RF) unit based on the multi-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 Appearance Figure 1-1 shows the exterior of the GRFU. Figure 1-1 Exterior of the GRFU

1.2 Physical Ports Table 1-1 shows the physical ports of the GRFU.

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1 Introduction

Table 1-1 Physical ports of the GRFU Port

Connector

Quantity

Function

Common public radio interface (CPRI) port

SFP female

2

Connects to the baseband unit (BBU3900), or to another RRU for cascading

RF port

DIN female

2

Connects to an antenna

Interconnection port for receiving RF signals

SMA

2

Transmits and receives the diversity signals received through an antenna channel

Power supply socket

3V3 terminal

1

Receives –48 V DC power

Monitoring port

RJ45

1

Port for monitoring and maintenance

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2 Technical Specifications

2

Technical Specifications

2.1 Frequency Band Table 2-1 GRFU V1 frequency band Frequency Band

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 modules for delivery.

Table 2-2 GRFU V2 frequency band Frequency Band



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 Frequency Band



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 Receiver Sensitivity (dBm)


1900MHz

-113

-116

Table 2-6 GRFU V2 receiver sensitivity Frequency Band



900M EGSM

-113.3

-116.3

900M PGSM/ 1800M

-113.5

-116.5

Table 2-7 GRFU V2a receiver sensitivity Frequency Band



900M EGSM/

-113.5

-116.5

1800M

2.4 Output Power NOTE 

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

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

BCCH Carrier Output Power (Power Sharing Disabled)

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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GRFU Description


Number of Carriers



S2

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

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

S3

27 W (GMSK)/18 W (8PSK)

31 W (GMSK)/20 W (8PSK)

S4

20 W (GMSK)/13 W (8PSK)

27 W (GMSK)/18 W (8PSK)

S5

12 W (GMSK)/8 W (8PSK)

20 W (GMSK)/13 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 using the 60 W output power, otherwise, S1 will be 1 x 40 W.




S1

60 W (GMSK)/60 W (8PSK)

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

S4

20 W (GMSK)/20 W (8PSK) *3

27 W (GMSK)/27 W (8PSK) *3

S5

16 W (GMSK)/16 W (8PSK) *3

20 W (GMSK)/20 W (8PSK) *3

S6

12 W (GMSK)/12 W (8PSK) *3

20 W (GMSK)/20 W (8PSK) *3

*1*2

NOTE 




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



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




S1

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

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

S2

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

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

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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GRFU Description


Number of Carriers



S5

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

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

S6

12 W (GMSK)/12 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 optional feature GBFD-118104 Enhanced EDGE Coverage enabled.

2.5 Power Consumption 2.5.1 Power Consumption of the BTS3900 NOTE 

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



The power consumption listed in this section refers to the power consumption of BTS3900s with -48 V 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 Power Consumption (W)

Maximum Power Consumption (W)

S4/4/4, TOC = 20 W

710

1,310

S6/6/6, TOC = 16 W

710

1,370




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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GRFU Description


Configuration



S6/6/6, TOC = 20 W

770

1,270

2.5.2 Power Consumption of the BTS3900A NOTE 

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) Configuration



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 BTS3900L NOTE 

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) Configuration



900M S4/4/4 + 1800M S8/8/8, TOC = 20 W

1,800

3,730

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3 Acronyms and Abbreviations

3

Acronyms and Abbreviations

Table 3-1 Acronyms and abbreviations Acronym and Abbreviation

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

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