10_RA4535AEN09GLA0_WCDMA_Antenna_System_Features_RU40.pdf

© Nokia Solutions and Networks 2015 RA4535AEN09GLA0

WCDMA Antenna System Features

Nokia Academy

2 © Nokia Solutions and Networks 2015 RA4535AEN09GLA0

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WCDMA Antenna System features


Learning Element Objectives

•After completing this module, the participant will be able to:

•Theory:

- List the Antenna System products

- Describe Antenna cable installation

- Describe the functionality of a Bias-T and Mast Head Amplifier (MHA)

- Describe the advantages of the Flexi WCDMA BTS feederless system


Antenna System

- Antenna Systems are integral parts of EDGE, WCDMA, or WiMAX radio networks

- The antenna system combines multi-band capability, optimum performance and

reliability

- WCDMA Antenna Systems can be co-sited with GSM/EDGE Antenna Systems


Antenna System Products

- Antenna

- WCDMA Dual MHA (Masthead Amplifier)

- Bias-T

- Diplexer (dual-band combiner)

- Triplexer (triple-band combiner)

- Feeder cable

- Connector for feeder cable

- Jumper cable

- Grounding kit

- Cable fixing kit (clamps and hangers)

- EMP protector if required

- Real Tilt


Flexi WCDMA BTS Antenna System Features

- Integrated VSWR Bias-T

- Option to tune VSWR Thresholds

- Integrated MHA power feed and supply current monitoring circuit

•Future releases

- Support for BTS integrated antenna tilt control

- Support for Control a mast head amplifier

- In WN3.2 we have “non-intelligent” MHAs, only controlled by the power and current alarms are possible

- In WN4.0 it’s possible to control also “active” MHAs (AISG/3GPP). Example: the gain mode / level is possible to select by the SW, alarms from MHA, etc.

- WMHD since WN4.0: Integrated RET with AISG Support


Antenna System

configuration example:

BTS with Dual MHA

and Bias-Ts

In Flexi WBTS, the Bias-Ts are

integrated to the RF Module FRxx.


Antenna System

configuration example:

Dual Band BTS with

Dual MHA

and Bias-Ts


Antenna System configuration example: BTS with WMHD


Bias-T (for UltraSite/MetroSite)

- Two functions:

• DC power feed to MHAs through center conductor of the feeder

• VSWR monitoring (optional)

- WBVx with VSWR monitoring

- WBNx without VSWR monitoring

- In case the VSWR threshold is exceeded, the Bias-T sends an alarm to the BTS

- In Flexi WBTS, the VSWR Bias-T is integrated to the RF Module FRxx

- Both functions, power feed to MHA and VSWR monitoring are licensed features

- IP 65

- Size: W x L x D: 48 x 91 x 48 mm

- Weight: 0.4 kg

- VSWR Alarm level: Return loss 7 dB nominal (+/-2 dB tolerance)

older version WBNA newer version WBNB

same functionality

VSWR version WBVA


Bias-T (for UltraSite/MetroSite), cont.

•WCDMA Bias-T description

•The Bias-T used in the Nokia Solutions and Networks WCDMA Antenna Systems is an integral

component of the WCDMA Masthead Amplifier (MHA). There are two versions of Bias-T available: Bias-

T with VSWR (voltage standing-wave ratio) and non-VSWR Bias-T.

•Bias-T has two primary functions. It provides:

• Power to the Masthead Amplifier by injecting DC power into the RF feeder centre conductor, so

separate DC cabling is not needed

• Fault monitoring of the antenna line VSWR (voltage standing-wave ratio) and Masthead Amplifier,

forwarding alarm signals to the base station antenna filter unit (WAF)

•The Bias-T transfers DC power via the antenna coaxial cable to the MHA connected to the antenna

line. The Bias-T combines DC and RF energy onto the same coaxial cable and provides RF isolation

toward the DC voltage supply and DC isolation towards the BTS. The BTS TX power is fed through the

Bias-T.

•The VSWR alarm function indicates that the antenna, MHA, feeders or jumpers have developed

problems which impair their functioning. The Bias-T with VSWR can be installed to a WCDMA Antenna

System without an MHA as a stand-alone unit to provide lightning protection and VSWR monitoring.


Bias-T block diagram

The Bias-T has lightning suppression built into the unit, as shown in the block diagram

This Bias-T provides lightning protection for the BTS also

There are no user- or operator-serviceable components inside the Bias-T


Flexi WCDMA BTS Internal Bias-T VSWR Tuning


Flexi WCDMA BTS Internal Bias-T VSWR Tuning, cont.

•Choosing the Antenna → Tune VSWR Threshold menu item opens the Tune VSWR

Threshold dialog box, where you can tune VSWR alarm threshold values for antenna

filters inside RF modules.

•The VSWR threshold tuning is used for defining values when an alarm notification

needs to be sent for a minor problem of an antenna line condition (decreased condition)

and for a major problem condition (cell blocking).

•The VSWR threshold tuning can be also used (indirectly) to find out the actual VSWR

value by changing the values and monitoring alarms.



• Check the antenna for which tuning of VSWR is required.

• Specify Minor and Major Ranges. (VSWR Values from 1.5 to 3.5)

• Start Tuning.

• The Alarms column shows the states of VSWR alarms for each filter.

• When the tuning mode is activated by clicking the Start Tuning button, sending

alarms to the NetAct from the selected antenna lines is blocked. Alarms will not be

sent until the tuning is stopped by clicking the Stop and Save or Stop without Saving

button.


DC Stops

- DC Stops are used to prevent DC

current supplied to the Masthead

Amplifier by the Bias-T from shorting

to ground through a base station or

an antenna

- The DC Stop is rated for operation

from 800 MHz to 2170 MHz


Mast Head Amplifier (MHA)

•General purpose

- Amplifies RX (uplink) signals

- Is an active device, requires power supply

- Reduces system noise figure

- Increases uplink capacity

- Compensates for feeder and combiner losses in the up-link direction, increasing

coverage for suburban, rural and road sites where antennas are in very high

positions and the feeder lines are long

- Reduces interference caused by non-WCDMA mobile phone users

- Allows mobiles to reduce transmission power level

- Improves mobile station battery lifetime


Dual Mast Head Amplifier WMHC

•Versions:

•WMHA

- single MHA

- 12 dB gain

•WMHB

- Dual MHA

- 2 single MHAs in one mounting frame

- 12 dB gain

•WMHC / WMHD

- Dual MHA

- 2 MHA functionalities in a common

enclosure

- DC power supply through “BTS 2” port only.

- 12 dB gain

- WMHD: AISG Compatible


Dual Mast Head Amplifier WMHC, cont.


WMHC block diagram


WMHC block diagram, cont. WCDMA Dual MHA monitoring and alarms

• If the MHA unit fails, a bypass mode ensures that the antenna line sector continues operating

• Alarms are sent to the BTS via the DC feeders so if the power to the MHA is switched off the alarms are switched off

• If MHA power is lost, the MHA no longer amplifies the Rx signal, but the by-pass operation is still able to pass

through the Rx path (with minor loss).

• The MHA has an operational current 'window' and providing the current consumed is within this window and within

the specified DC voltage range, the MHA operates correctly

• When the monitored MHA current consumption is outside this window, an MHA alarm is activated

• The BTS operating software confirms the alarms and performs a recovery action applicable to the version of BTS

operating software being used

- To identify the specific software recovery action, please refer to the BTS Software User Manual for information

• An MHA alarm alerts if the MHA Low Noise Amplifier (LNA) is defective or outside the operational limits

Note

• If open or high impedance exists along the antenna line supplying the MHA DC supply, this indicates a VSWR alarm

condition

• If an MHA alarm is activated, the cause of the alarm must be identified

• Once the cause is clearly identified, the appropriate corrective actions can be performed to correct the fault


Dual Mast Head Amplifier WMHD

• WMHD will have same size and RF-performance as WMHC

• It has integrated RET bias-t with AISG output connector and AISG support

• WMHD replaces WMHC


Dual Mast Head Amplifier WMHD

- WMHD Mast Head Amplifier is the upgrade on WMHC

- The WMHD MHA is a dual unit that includes two WMHD MHAs in a single

enclosure

- WMHD adds RET output connector and AISG controlling to WMHC. Remote

antenna tilt users saves RET bias-t and installing time

- RF-performance and outlook will remain same as WMHC


Dual Mast Head Amplifier WMHD, cont.

• WMHD MicroMHA comprises two identical amplifiers in one compact integrated

package which is easy to transport and install

• A state of the art Low Noise amplifier design provides a nominal 12 dB of gain,

compensating feeder loss and improving coverage

• In the unlikely event of component or power failure, a bypass path allows the BTS to

continue operation

• Power is fed via the feeder cable, in Flexi BTS no BiasTs are needed, WMHD gets it’s

power and control directly from BTS

• With Ultrasite WCDMA BTS, the BiasT is needed

• WMHD has also RET connector for remote antenna tilt adjustor, RTA


WMHD Block Diagram


MHA Components

- Dual low noise amplifiers (LNA)

- Temperature stability circuits

- High Q, low loss RX and TX duplex filters

- Supervision circuitry to monitor the status of the amplifiers and to send alarm

signals to the BTS in the event of failure

- Current extraction circuitry at the BTS port for DC feed through the coaxial feeder

- Lightning protection circuitry at all ports

- Path for AISG DC Power and control from BTS 1 to ANT 1

- Bias-T circuits that convert AISG DC power from coax to separate DC power and

data lines, and backwards


Tower Mounted Amplifier (TMA)

• The Tower Mounted Amplifier (TMA) is a RF unit performing the following functions:

- Amplifying the uplink signal received from the TX/RX antenna with a low noise

figure.

- Feeding the overall Node B downlink signal to the TX/RX antenna

• The TMA is an optional but highly recommended unit as it compensates cable losses

in the uplink and thus ensures lower noise disturbance.

• High selectivity filters ensure high TX/RX separation, enabling the reception of low

signal levels in the uplink. It therefore improves link quality and link availability at the

cell borders

The TMA is always installed outside the Node B rack/shelter and close to the

antenna, thus achieving fixed sensitivity independently of the feeder cable length.


TMA Variants 1/2

There are five variants of TMA:

•TMA

- The TMA is a two-port RF unit (1 x in, 1 x out)

- Two TMA modules are required for each sector to support the RX main

path and the RX diversity path

•DTMA

- The DTMA (Dual Tower Mounted Amplifier) is a four-port RF unit (2 x in, 2

x out)

- Consists of two identical TMA submodules in a single housing

- One submodule is used for the RX main path and the other for the RX

diversity path

- One DTMA module is thus required for each sector

- The DTMA is very efficient in combination with a cross- polarized antenna


TMA Variants 2/2

•TMARET

- The TMARET is a TMA module additionally providing an IF converter and the RS485 interface in order to support control of a RET module

•DTMARET

- The DTMARET is a DTMA module additionally providing an IF converter and the RS485 interface in order to support control of a RET module

•SDTMA

- The SDTMA (Single Feeder Controlled DTMA) has the same capabilities as the DTMA module

- Additionally supports DC power supply and SDTMA signaling via one port for both TMAs inside the SDTMA

- SDTMA is SW-prepared to switch from dual feeder controlled to single feeder controlled DTMA if required in the current configuration

- In case of dual feeder control the RET functionality is provided


TMA Variants 2/2, cont.

• The RET (Remote Electrical Tilt) module is located directly under the antenna and

contains a stepper motor which adjusts a phase shift within the antenna

• This module is accessed from a RET capable TMA module

(TMARET/DTMARET/SDTMA) via the RS485 interface

• RET specific commands enter the Node B at the Core Controller, are routed through a

RET capable DUAMCO (variant DUAMCORET) and are transmitted to the RET

module via the RET capable TMA module

• The signals are sent over the HDLC protocol

• In the opposite direction the RET module sends information and alarms

• RET signaling and DC power from the DUAMCO to the TMA and vice versa is

transported through the antenna feeder cable; a triplexer is integrated in the TMA to

provide these functions

• A special cable is needed between the TMA and the RET module for the RET´s DC

voltage and the RS485 interface

•The TMA and its variants are powered by the related DUAMCOs (e.g. TMA/DTMA by

DUAMCORT and TMARET/DTMARET by DUAMCORET).


Concept of TMA and DTMA


Concept of TMA and DTMA, cont.

The TMA module consists of

•one duplexer subsystem

•a triplexer

•a low-noise amplifier (LNA) with a fail-safe path and a bias & signaling board

•The transmit path consists of the TX part of the duplex filters

•The receive path consists of the RX part of the duplex filters and contains the LNA

•The triplexer combines the TX and the RX path with the TMA signaling path (e.g.

alarms). Therefore only one feeder cable is required between the TMA and the Node B

•The TMA is supplied with +12 V DC through the feeder cable from the Node B

The LNA within the TMA has two parallel gain elements:

•If a single failure occurs, operation continues with reduced gain

•If both gain elements fail, or the supply of the TMA fails, the LNA is bypassed by a

fail-safe switch.


Concept of TMA and DTMA, cont.

The DTMA module consists of

•two RF ports

•a duplexer subsystem

•a triplexer

•an LNA with a fail-safe path and a bias & signaling board

•For each sub-module, signaling and DC power supply are provided through the

associated feeder cables from the Node B


Block Diagram of DTMA


Block Diagram of DTMA RET and SDTMA


DTMARETFV1


DTMARETFV1, cont.

•The DTMAF / DTMARETF shall be grounded to the pole, therefore a protective

earthing conductor has to be prepared for each device on site.

•The mounting plate provides a ground screw with a locking washer attached to it and a

threaded hole for connection of the protective earthing conductor (see bottom view of

the devices). The protective earthing conductor cable lug must have the right size for

the M8 ground screw. The cross section of the protective earthing conductor must be

not less than 16 mm2 (AWG 6).

•The other end of the protective earthing conductor should be safely connected to a well

grounded point on the pole. The DTMAF / DTMARETF shall be grounded to the pole,

therefore a protective earthing conductor has to be prepared for each device on site.

•The mounting plate provides a ground screw with a locking washer attached to it and a

threaded hole for connection of the protective earthing conductor (see bottom view of

the devices). The protective earthing conductor cable lug must have the right size for

the M8 ground screw. The cross section of the protective earthing conductor must be

not less than 16 mm2 (AWG 6).

•The other end of the protective earthing conductor should be safely connected to a well

grounded point on the pole.


DTMARETFV1 Pin Signal Description

1 12V +12 V power supply output for the RET module

2 N/C

3 RS485B two wire bi-directional bus (RS485) with HDLC protocol

4 N/C

5 RS485A two wire bi-directional bus (RS485) with HDLC protocol

6 N/C

7 GND Ground

8 N/C

N/C = not connected


DTMARETFV3

Care must be taken that the draining pipe (see bottom view of the devices) is pointed

downwards. The draining outlet is factory mounted. If it, for any reason, would be

loosened, it should be tightened again with a sufficient torque wrench, however not

exceeding 2.2 Nm (1.6 ft lb).

The draining pipe must never be obstructed or covered with paint which would impede

the venting and draining of the housing.


DTMARETFV4

If a DTMARETFV4 shall be installed, pay attention to the following special notice of the manufacturer.

The RET male connector must be firmly tightened by means of bare hands only. No tool (e.g. pliers) can be used.

Failure to follow this instruction can cause damage to the RET connector assembly and further, it can cause water intrusion into

the unit.

If the RET cable is not connected, the cap provided with the unit must be firmly screwed on the RET female connector on the

TMA.


Pole Mounted DTMAF


Pole Mounted DTMAF, cont.

•The hose clips surrounds the pole and are fitted into the corresponding openings of the mounting plate (see rear view of the devices). This is the situation just before tightening the hose clips.

•For the mounting, the following steps can be generally recommended. First connect the DTMAF / DTMARETF to the antenna feeder cable. Take into consideration that the antenna feeder often is very stiff and rather heavy. The position of its coaxial connectors therefore often determines the position of the DTMAF / DTMARETF on the pole.

• 1. Place the DTMAF / DTMARETF in its final mounting position at the pole.

• 2. Secure the unit with a tensioning belt.

• 3. Open the hose clips by pressing the “button” at the end of the clip lock and then smoothly pull out the perforated metal band.

• 4. Move the metal band of the hose clip gently into the openings of the mounting plate.

• 5. Close the hose clip loosely around the pole.

• 6. Tighten the hose clip screws carefully, but do not over-tighten.

• 7. Remove the tensioning belt.

• 8. Connect the DTMAF / DTMARETF first to the antenna feeder cable (NodeB) and then to the antenna jumper cable (ANT). The torque must be 25 Nm (18.5 ft lb).

• 9. Connect the protective earthing conductor with the DTMAF / DTMARETF ground screw. Tighten the connection to a torque of 5 Nm (3.7 ft lb).

• 10. The use of self-vulcanizing tape as an environmental protection of the connectors is recommended.

•Pay attention to the thermal dimensional changes of the antenna feeder cables. If the antenna is equipped with a RET module, install the DC power / data cable between the module and the 8 pole circular connector of the DTMARETF. The required cable will be delivered with the RET module together.


Defining TMARETV1 on Flexi WCDMA BTS

A TMARET unit contains both MHA and RET unit.. Note that only DTMARETFV1, DTMARETFV2, DTMARETFV3,

DTMARETFV4, SDTMARETFV1, SDTMARETFV2, SDTMARETFV3 and TMARETFV1 TMARET types can be

commissioned in the TMARET Settings page.

Autodetected AISG MHAs are commissioned in the AISG MHA Settings page and autodetected AISG RETs are

commissioned in the RET Settings page


Defining Siemens Proprietary AISG.1 TMARET and RET


Defining Siemens Proprietary AISG.1 TMARET and RET, cont.

• Click the New Unit button to add either a new TMARET or RET unit to the HW

configuration.

• For a TMARET unit, define the following settings:

- TMARET type.

- RET in Use

- NodeB0 Antenna

- NodeB1 Antenna

• For a RET unit, define the following settings:

- Antennas

• Repeat the procedure for each TMARET or RET unit.

• Click the Next button.


Nokia Solutions and Networks RealTilt

•RealTilt is a fully integrated solution which enables the optimization of WCDMA

networks by adjusting the antenna tilt angle and monitoring the status of the antenna

remotely from the network management system.

•This system is able to tilting the antenna mainbeam energy without physically tilting the

antenna radome.

•RealTilt is based on the Antenna Interface Standards Group (AISG) standards and

supports antennas.

•Operating RealTilt is done locally or remotely through Ethernet.


Real Tilt Components

•The components of RealTilt are:

- RealTilt Electronic Tilt Adjuster

(RTAx)

- RealTilt Control Unit (RCUA)

- Control cables

- RealTilt Splitter (RSAA) for DC

power and signal

- RealTilt Lighting Protection Device

(RLPA)

- Earthing clamps for control cable

- RealTilt Bias-T

In Flexi WCDMA BTS, the Real Tilt

Bias-Ts and RCU are integrated to

the RF Module FRxx. (support from

RAS 06)


Real Tilt Configuration Example 1

•Controlling RTAx via a control cable.


Real Tilt configuration example 2

•Controlling RTAx via an antenna feeder

cable and 2 Real Tilt Bias-Ts.

In Flexi WCDMA BTS, the Real Tilt

Bias-T and RCU are integrated to

the RF Module FRxx. (support from

RAS 06)


Real Tilt configuration example 3

•Controlling RTAx via an WMHC on an

antenna feeder cable and 2 RealTilt

Bias-Ts.

In Flexi WCDMA BTS, the

Real Tilt Bias-T and RCU are

integrated to the RF Module

FRxx. (support from RAS 06)


Real Tilt Configuration example 4

•Configuration with WMHD

- RET port connected directly to RTA

- Power is fed via the feeder cable. In

Flexi BTS, no BiasTs are needed

externally. WMHD gets it’s power

and control directly from BTS

- With Ultrasite one BiasT is needed.


Tilting the antenna


RealTilt Interfaces


Multi Radio Combiner

•Multiradio Combiners are parts of the Flexi WBTS Antenna system for co-siting GSM

and WCDMA BTSs on the same frequency band, using common feeders and antennas

for GSM and WCDMA systems.

•The following MRCs are available:

• FADB for 900 MHz BTSs

• FAGB for 2100 MHz BTSs


MRC block diagram

FADB FAGB


WRGT wideband combiner (WBC)

- WRGT is used in UltraSite EDGE BTS

cabinets when Co-sited with a Flexi

WCDMA BTS in antenna sharing

configuration with MRC.

- Covers GSM 800/900 frequency bands

- Combines all GSM TX signals into one

common path.

- Contains three 2-way Wideband

Combiners

- Inserts 3.5 dB loss per combiner.


WRGT wideband combiner (WBC), cont.

•WRGT wideband combiner unit

•The WRGT wideband combiner (WBC) is a special unit needed for additional TX

combining in 2G BTS when common antenna line is shared with a 3G BTS using a

multiradio combiner (MRC). WRGT is used for 800/900 MHz operational frequency

bands and with FADB multiradio combiners.

•The WRGT unit is only needed when MRC is used and Flexi WCDMA BTS modules

are placed inside the UltraSite EDGE cabinet using the vertical or horizontal installation

kit (FMUA/FMUB), to perform the additional combining of GSM TX signals.

•The WRGT is placed to the baseband unit rack of the BTS. FMUA/FMUB is only

supported by newer versions of IDC_/ODCA cabinets (from v.101 for FMUA and v.202

for FMUB). The WRGT unit contains the additional interconnecting cables needed


Typical Antenna

System with an

MRC

1. Jumper

2. Connector

3. Feeder


MRC installation option


Antenna Alarm with Receiver Signal Comparison

- This feature is used for monitoring the performance of the antenna line. Antenna alarm

gives information to operator if for example an antenna is broken.

- By comparing the signal levels in both receiver antennas an alarm is raised if there is >

4 dB difference in received wideband noise between the diversity branches.

> 4dB Alarm


Activating Antenna Alarm with Receiver Signal Comparison

This feature belongs to application software. A valid license is required.


Activating Antenna Alarm with Receiver Signal Comparison,

cont.

• Steps

• 1. Open the License Management dialogue on WCDMA BTS Site

• Manager.

• 2. Click the Browse button to open the Browse License File

• dialogue.

• 3. Select the Rx Signal Level Monitoring (feature code 1216) license.

• 4. Click the Open button.

• 5. Click the Download to BTS button.

• 6. Click the Close button.


Receiver Signal measurement

If license installation has been successful, RX Signal Level Monitoring values are shown


Smart Diplexers

- New innovative diplexer enables co-site low (700-900Mhz) and high (1700-2100Mhz)

band BTSs, while using the same feeders.

- The new functionality allows to operate both high and low band BTSs with MHAs and

RET antennas without the need for any additional cabling other than the feeders

between BTSs and antenna side.


FAWA

- FAWA is a combiner located near the BTS. It incorporates a wide band low pass filter

with a wide band high pass filter. In case of MHA use, it is powered via -48VDC. One

unit can be used to combine the TX and RX bands for a HIGH BAND BTS (Sector) and

LOW BAND BTS (Sector) on the same RF cable.

BTS 698-960

with control

Feeder

Out 1

BTS 1710-2170

with control

BTS 698-960 Feeder

Out 2

BTS 1710-2170

DC IN

RET feeder

selection

switch


FDWA

- FDWA is a diplexer located after the feeder cables just before the Antenna Line

equipment. It incorporates a wide band low pass filter with a wide band high pass filter.

One unit can be used to separate the TX and RX bands for a HIGH BAND basestation

and LOW BAND basestation from the same RF cables. FDWA is designed to be

completely outdoor mounted.

ANT 698-960

with control

Feeder

Out 1

ANT 1710-2170

with control

ANT 698-960 Feeder

Out 2

ANT 1710-2170 RET


Old solution

•Before Smart Diplexers…

- Feeder sharing with MHAs required additional cabling between BTS and antenna side.


Application of Smart Diplexers

Feeders

FDWA

FAWA

X-pol. antenna

with MHA and

RET

X-pol. antenna

with MHA

WCDMA 900 BTS

-48V DC

GSM 1800 BTS

Only one of both antennas can be RET controlled (typically the 3G antenna). The

feeder carrying the RET control signal is selected by a switch on the FAWA front

panel.


Smart Diplexer

• The smart diplexer solution works with GSM, WCDMA and LTE (in FDD mode) and

- supports transmission of AISG control and alarm information between the BTS and the antenna system

- eliminates the need for Bias-T equipment near the antenna as well as long Bias-T cables

- reduces the number of RF feeder cables to the antenna system

- enables mast head amplifier (MHA) and remote electrical tilt (RET) antenna use without extra cables

- makes installation easier and faster

• The smart diplexer solution includes two new hardware units:

- FAWA low/high band combiner

- FDWA low/high band diplexer

New diplexer enables co-siting of low-band and high-band BTSs using same feeders.

FDWA

FAWA

FDWA FEEDER IN 1

FEEDER IN 2

698-960 MHz WITH CONTROL


698-960 MHz

1710-2170 MHz

FAWA

DC -48V 1710-2170 MHz WITH CONTROL


FEEDER OUT 1 1710-2170

MHz 698-960 MHz

FEEDER

OUT 2

MHAs CAN BE ANY LEGACY NSN OR NEW DUAL UNITS WITH AISG SUPPORT

RF FEEDER CONTAINS: TX/RX SIGNALS DC POWER AND CONTROL SIGNAL

1 SECTOR

NEW 3G FLEXI 900 MHz BTS WITH AISG SUPPORT

RET ANTENNA DOWN TILT CAN BE CONTROLLED

1800 MHz

900 MHz

EXISTING 1800 MHz BTS

EXISTING BIAS TEES FOR DC POWER AND LEGACY ALARMING.

DIVERSITY RF FEEDER CONTAINS: TX/RX SIGNALS ONLY

ANT 2

BTS 2

ANT 1

BTS 1 RET

ANT 2

BTS 2

ANT 1

BTS 1 RET

Note: -48VDC needed to bottom unit if MHA in use

EXTRA

RET

CONNECT

ORS

FAWA


Smart Diplexer, cont.

•Feature ID: RAN1876

•New innovative diplexer to co-site low (700-900Mhz) and high (1700-2100Mhz) band BTSs, using same feeders.

•Benefits for the operator:

•Reduces customer CAPEX because solution reduces the number of RF feeder cables to the Antenna system and extra boxes. Also no need extra Bias tees and cables. Reduces customer OPEX because installation is easier and faster and reduced unit installation cost and tower "box count" rental costs.

•Functional description:

•Smart diplexer solution includes two new hardware unit, FAWA low/high band combiner and FDWA low/high band diplexer. Solution support current alarming for low and high band BTS or both and devices can operate independent for Non AISG supported BTS setups. Both FAWA and FDWA Designed to be 19 inch rack mountable and 1 U high.

•FDWA is a diplexer located after the feeder cables just before the Antenna Line equipment. It incorporates a wide band low pass filter with a wide band high pass filter. One unit can be used to separate the TX and RX bands for a HIGH BAND base station and LOW BAND base station from the same RF cables. FDWA is designed to be completely outdoor mounted.

•FAWA is a combiner located near the BTS. It incorporates a wide band low pass filter with a wide band high pass filter. It also is powered via -48VDC. One unit can be used to combine the TX and RX bands for a HIGH BAND base station and LOW BAND base station on the same RF cable.

•Current Implementation:

•This is a new features.

• Interdependencies between features:

•This feature has no related or interworking features.

Appendix 1: Flexi WCDMA BTS Antenna

Configuration Examples


Flexi WCDMA BTS with RealTilt, before RAS06

- On the following pages some supported configuration alternatives shown with the

Flexi WCDMA BTS and the existing Nokia RealTilt System

- These configurations can also be used when the Flexi WCDMA BTS is upgraded to

RAS06, if the Flexi RET SW is not taken into use

- The Nokia Control Unit (RCUA or RCUO) requires an Ethernet connection to the

Flexi WCDMA BTS, so that the RET system can be controlled from the BTS

Element Manager

- The Nokia Control Unit (RCUA or RCUO) can be -48VDC powered from the Flexi

WCDMA BTS


1)

Following RealTilt items needed in this configuration (alt.1):

(Note: Only one sector shown in the picture)

- RET antenna

- External RTA (related to antenna type)

- Lightning Protection Device, 469833A (RLPA)

- RCUA or RCUO

469757A - Control Unit (RCUA)

471471A - Outdoor Control Unit (RCUO), from 1Q2007

- Control Cables (RCxx)

- as an option: 469797A - Splitter 1:3 (RSAA)

1) The RTA’s can be daisy-chained or a splitter

can be used to split the signal to all sectors.

Flexi WCDMA BTS with RealTilt (before RAS06)


1)

2)



- RET antenna


- Smart Bias-T’s

469870A - Smart Bias-T, Mast side (RSMA)

469869A - Smart Bias-T, BTS side (RSBA)

- RCUA or RCUO







or

2) A splitter can be used directly after the RCUA to split the signal

to all sectors (e.g. Smart Bias-T’s required for each sector).

Flexi WCDMA with RealTilt (before RAS06)


1)

2)



- RET antenna


- Smart Bias-T’s



- RCUA or RCUO





The configuration shown with the Nokia MHA, WMHC



or





1)

2)



- RET antenna


- Nokia MHA, WMHD (from 1H2007)

- Smart Bias-T


- RCUA or RCUO







or







- RET antenna with internal RTA (from 1Q2007)

- Smart Bias-T


- RCUA or RCUO




- 469797A - Splitter 1:3 (RSAA)






- Nokia MHA, WMHD (from 1H2007)

- Smart Bias-T


- RCUA or RCUO









- RET antenna with internal RTA and Smart Bias-T (from 2Q2007)

- RCUA or RCUO










- RCUA or RCUO





Here the RET signal is fed through the Nokia MHA (WMHC or WMHD)



• On the following pages, some supported configuration alternatives are

shown with the Flexi NodeB and the existing Nokia RealTilt items.

• These configurations are based on the Flexi RET SW.

• In Flexi NodeB RET SW, each sector has its own separate RET control over

the feeder.

Flexi WCDMA BTS with RealTilt (from RAS06)


Following RealTilt items needed in this configuration (alt.F1):



In Flexi NodeB, each sector has its own RET control

over the feeder





- RET antenna with internal RTA and Smart Bias-T (from

2Q2007)

Here, the RET signal is fed through the Nokia MHA (WMHC or

WMHD)


over the feeder





‐ RET antenna with internal RTA (from 1Q2007)

‐ Nokia MHA, WMHD (from 1H2007)

‐ Control Cable (RCxx)


over the feeder






- Smart Bias-T


- Control Cable (RCxx)


over the feeder





- RET antenna


- Smart Bias-T’s




over the feeder





- RET antenna


- Smart Bias-T’s



The configuration shown with the Nokia MHA, WMHC


over the feeder





- RET antenna


- Nokia MHA, WMHD.



over the feeder



Vertical Sectorization - 1-column AAS

Improved capacity and coverage for the air interface

• Two half-power beams, vertically separated, produce

typically 1.5xcapacity gain compared to a single full power

cell (beam EIRP ~65 dBm)

• Horizontal beam width ~65 degrees and vertical width ~7

degrees

• Electronic tilt +10…-10 degrees for the beams separately

Op

tical

fib

re +

DC

Flexi System Module

Two half-power beams

Active Antenna System (AAS)


Flexi Multiradio BTS Active Antenna System

2012

2013

2010 2011

• Actual availability depends on market needs and customer orders.

• Other frequency variants and SW support for other access technologies are under study and will be developed based on market needs.

2100/1800 (active/passive)

Commercial availability

2Q/12 (WCDMA RU40)


2Q/12 (WCDMA RU40)


3Q/12 (LTE RL50)


3Q/12 (LTE RL50)


Flexi Active Antenna system

Type Active element / technology EIRP and RF band width Passive element

AAS 2100 / 1800 2100 MHz WCDMA / LTE 65,8dBm, 20MHz 1800MHz

Appendix 2: Hardware Identification


Bias-T WCDMA, VSWR CS7299611


Bias-T WCDMA, no VSWR

CS72996.03


Bias-T WCDMA, no VSWR CS7299613


WMHB Dual WCDMA MHA CS7299515


WMHA WCDMA MHA CS72995.02


WMHC WCDMA Dual MHA 470057A


WMHD WCDMA Dual MHA (RAS06)


WMHD WCDMA Dual MHA (RAS06), cont.

•WMHD MicroMHA comprises two identical amplifiers in one compact integrated

package which is easy to transport and install. A state of the art Low Noise amplifier

design provides a nominal 12 dB of gain, compensating feeder loss and improving

coverage. In the unlikely event of component or power failure, a bypass path allows the

BTS to continue operation.

•Power is fed via the feeder cable, in Flexi BTS no BiasTs are needed, WMHD gets it’s

power and control directly from BTS. With Ultrasite one BiasT is needed.

•WMHD has also RET connector for remote antenna tilt adjustor, RTA.

•WMHD Mast Head Amplifier is upgrade on WMHC.

•WMHD adds RET output connector and AISG controlling to WMHC. Remote antenna

tilt users saves RET bias-t and installing time.

RF-performance and outlook will remain same as WMHC.


MDTA WCDMA Dual 850 MHz 32 dB MHA


MDGA WCDMA Dual 900 MHz 32 dB MHA


MDDA dual 1800 MHz 12/33 dB MHA


MDDA dual 1900 MHz 12/33 dB MHA


DTMAFV3


DTMAFV4


SDTMARETFV1


Jumper Cable 0.5 m, ½ inch, 7/16 CS72311.05


EMP Broadband 800-2170 MHz CS72645


Triplexer 900/1800/WCDMA CS7223001


RealTilt Smart Bias-T for mast side RSMA 469870A


RealTilt Smart Bias-T for BTS side RSBA 469869A


RealTilt Splitter 1:3 RSAA 469797A


RealTilt Electronic Tilt Adjuster RTAA 469759A


RealTilt Control Unit, RCUA 469757A


RCUA Interfaces

10_RA4535AEN09GLA0_WCDMA_Antenna_System_Features_RU40.pdf

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