RBS 6601

RBS 6601 :

RBS 6601

The main features of the RBS 6601 : Supports GSM, WCDMA, and LTE. Can be equipped with various Digital Units (DU) and Radio Units (RU). Can be configured with up to 6 RUs and 2 DU( FOR LTE) Can be configured with up to 3 RUs and 1 DU(FOR WCDMA) Can be configured with up to 6 RUs and 1 DU(FOR GSM)

Power

supply alternatives for DU/RRU:

DC (two-wire) 120±250 V AC

-48 V

4

BASIC HARDWARE CONSISTED IN RBS 6202

y

DU (DIGITAL UNIT)

y

RRU (REMOTE RADIO UNIT)

y

PSU (POWER SUPPLY UNIT- OPTIONAL)

y

BFU (BATTERY FUSE UNIT)

DIGITAL UNIT(DU) The DU provides: switching, traffic management, timing, baseband processing, and radio interfacing. DU IS JUST LIKE AN DXU/MU IN 2000 RBS. The DU has the following functions:  Timing function  Loadable software  Downlink baseband processing  Uplink baseband processing  IP traffic management  Radio interface

DU

DUG ( GSM )

DUW ( WCDMA )

DUL ( LTE )

Position

Description

A

Support system

B

Digital Unit (DU)

Power Cabling in Single Support System Configuration with one DU 

RRU(REMOTE RADIO UNIT) y

The RU main purpose is to send and receive signals . The RU receives digital data and converts it to analog signals . It also receives radio signals and converts these to digital signals. 



TYPES OF RRU. 

RUW(RADIO UNIT FOR WCDMA)



RUG(RADIO UNIT FOR GSM)



RUL(RADIO UNIT FOR LTE)



RUS(MULTISTANDARD RADIO)

BASIC FUNCTION 

Tx Amplification



Tx/Rx Duplexing



Tx/Rx Filtering



Antenna Supervision Support

Positio n

Component

A

Solar shield

B

PSU (optional)

C

ACCU (optional)

D

Installation cover

E

Padlock capability

A

Optical indicators

F, O, I, Data 1, and Data 2

B

-48 V DC power supply

Power

C

Line Maintenance Terminal (LMT)

LMT

D

Optical cable 1 IN

Data 1

E

Optical cable 2 OUT

Data 2

F

Antenna 1

RF A

G

Antenna 2

RF B

H

RET

ALD ctrl

J

External Alarm

Ext Alarm

K

Cross Connect RXA

RXA I/O

M

Cross Connect RXB

RXB I/O

N

Earth Groundning

EBT

Marking F

O

I

Data 1

Indicator Fault

Operational

Information

Information

Color Red

Green

Yellow

Yellow

Mode Off

Indicates No fault detected in RRUW

On Off

Fault detected in RRUW RRUW not operational

On

RRUW operational

Flashing (2 Hz)

Load or testing in progress

Off

RRUW in unlock mode, that is, controlled by the radio network

On

RRUW in lock mode, that is, controlled by the RBS

Off

SFP not installed or not detected

On

ERROR (SFP present  but malfunctioning)

Flashing (0.5 Hz)

SFP mounted correctly  but optical cable receive signal not detected

Flashing (2 Hz)

Optical cable receive signal status okay

Flashing (16 Hz)

Optical cable link negotiation complete

Data 2

RBS 6601 3 sector RBB12 1a

Note: Second DUW only needed for 3x3 and 3x4 6x2 3x2 + 3x2

6 sector RBB12 1a Dual band RBB 12 1a

3 sector RBB22 1a

Frequencies 2100 MHz 850 MHz 1900 MHz 850 + 1900 MHz 850 + 2100 MHz 1900 + 2100 MHz