OM38040 MIMO Port Plumbing BTS RET Control Deployment Guide v3 0

OM38040 MIMO Port Plumbing & BTS RET Control Deployment Guide

Version 3.0 | 22 May 2015

OM38040 MIMO Port Plumbing & BTS RET Control Deployment Guide Version 3.0, 22 May 2015

Optus Mobile Radio Deployment

Page 1



DOCUMENT CONTOL VER 1

2

DATE

SECT

AMENDED BY

Authorised by

DESCRIPTION OF CHANGE

24/01/14

All

Stuart Leslie

Steve Crowley

New Document First Release

Steve Crowley

Updated step 1 to include EO with 5 days’ notice to MI. Added Steps 8&9 to include RAE contact and email sign off for acceptance.

3/01/14

4

Stuart Leslie

Updated document attached. 3.0

22/05/15

All

Malachy O’Dolan


Michael van der Lit

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Updated document with latest details on RET, DC stops, current drain and deployment processes.



Contents 1. Introduction & Background 2. MIMO Overview 2.1 Introduction 2.2 2 x 2 MIMO 2.3 2 x 4 MIMO 2.4 4 x 4 MIMO 2.5 Plumbing differences between Optus & Vodafone MIMO 3. Standard Optus Detailed Port Plumbing Drawings 3.1 Optus Template Drawing Register 4. Antenna overview 4.1 Antenna types 4.2 Antenna Overview and AISG Cabling 5. BTS RET Control 5.1 RET Controller Overview 5.2 Redundant RET Hardware 6. Combiners 7. BTS DC Injection and DC stops 7.1 BTS DC Injection to Power MHAs 7.2 DC Injection and DC Stops 7.3 System Current Draw 7.4 System Current Settings 7.5 BTS RET Control Frequencies and Fall back 8. BTS Ret Integration and Activation Process 8.1 BTS RET Integration 8.2 No BTS is Present. What To Do? 9. Ret Activation Responsibilities 9.1 RFE Contractor Responsibilities 10. Process to Contact VHA GNOC for BTS RET Activation 11. MHA Naming Convention 12. Appendix Appendix 1 Calculating System Current Draw Appendix 2 Huawei BTS Current Drain & DC Stop Requirements Appendix 3 NSN BTS Current Drain & DC Stop Requirements Appendix 4 Equipment Current Drain on Main Feed Port


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5 6 6 6 6 7 8 10 10 12 12 16 18 18 19 20 21 21 22 26 27 28 30 30 32 34 34 36 37 38 38 39 40 41



Tables Table 1 Antenna Types ............................................................................................................................................... 12 Table 2 Six Port Antenna Allocations ......................................................................................................................... 13 Table 3 Ten Port Antenna Allocations ........................................................................................................................ 14 Table 4 Twelve Port Antenna Allocation .................................................................................................................... 15 Table 5 Combiners DC Block/Pass .............................................................................................................................. 20 Table 6 Huawei two port RRU/RFU DC & AISG capabilities ....................................................................................... 23 Table 7 Huawei four port RRU DC and AISG Capabilities ........................................................................................... 23 Table 8 Nokia four port RRH DC and AISG Capabilities .............................................................................................. 25 Table 9 Nokia 6 port Flexi RF Units DC and AISG Capabilities .................................................................................... 25 Table 10 Preferred MHA equipment ........................................................................................................................... 26 Table 11 Preferred Antenna equipment ..................................................................................................................... 27 Table 12 BTS Current Limit Settings ........................................................................................................................... 27 Table 13 Huawei Optus Preferred BTS RET Control ................................................................................................... 28 Table 14 NSN Optus Preferred BTS RET Control ......................................................................................................... 28 Table 15 MHA Labelling Convention ........................................................................................................................... 37 Table 16 Results from Optus Current Drain Lab Test .................................................................................................. 41

Figures Figure 1 Multiple paths for 2x2 MIMO ......................................................................................................................... 6 Figure 2 On Right Huawei 12 port. On Left NSN 10 port MIMO plumbing .................................................................. 8 Figure 3 On Right 12 port. On Left 10 port, Vodafone MIMO Plumbing ...................................................................... 9 Figure 4 Commscope 6 Port Antenna ......................................................................................................................... 13 Figure 5 Commscope 10 port antenna ....................................................................................................................... 14 Figure 6 Commscope 12 port Antenna ...................................................................................................................... 15 Figure 7 Typical 10 Port Antenna Layout ................................................................................................................... 16 Figure 8 Commscope 12 Port RET Jumper Cable ........................................................................................................ 17 Figure 9 Bias‐tees used for DC & RET control (before left), BTS RET Control Activated (after right) ......................... 18 Figure 10 Feeder Termination Point No BTS Present ................................................................................................. 32 Figure 11 Sample Screen Capture .............................................................................................................................. 35 Figure 12 Calculating System Current Draw .............................................................................................................. 38 Figure 13 Huawei BTS Current Drain Trouble Shooting ............................................................................................. 39 Figure 14 NSN BTS Current Drain Trouble Shooting ................................................................................................... 40


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1. Introduction & Background This manual sets out Optus’ policy with regards to antenna system plumbing requirements for correct Tx/Rx and Rxd conventions, MIMO functionality, BTS Remote Electrical Tilt (RET) Control and MHA powering arrangements for all sites. The manual is also designed to assist installers when deploying Optus BTS RET Control and MHA powering via a Huawei or NSN BTS. The introduction of BTS RET control into the Optus design has coincided with the requirements to build new complex combined feeder system plumbing arrangements to support new frequency bands purchased by Optus, new multi low band and high band antennas, complex eJV sharing arrangements and new RRU and RFU BTS hardware released by Huawei & NSN. These combined factors have resulted in complex antenna system plumbing configurations. Many problems have been encountered from incorrect plumbing and BTS RET configuration and presenting as insufficient DC current getting to MHAs or RET motors, DC being activated incorrectly on multiple BTS and or multiple plumbing paths, current draining from one BTS to the other, over current alarms, DC being shut down on the BTS causing MHAs also to shut down, RTWP alarms, and other performance issues, etc. This manual has been written to provide the correct Optus Standard and required procedures for MIMO, correct combined plumbing arrangements and BTS RET control, to avoid the issues highlighted, ensure correct plumbing standards and provide guidance to technicians when trouble shooting.


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2. MIMO Overview 2.1 Introduction MIMO is an advanced RF technique to increase the capacity and throughput of a cell. It is used in several current wireless technologies including LTE, Wi-Fi and WiMAX. MIMO stands for Multiple In Multiple Out. Multiple Out means multiple RF streams in the same channel being transmitted from the base station’s multiple antennas and Multiple In means multiple stream being transmitted from the user equipment’s multiple antennas back to the base station’s multiple antennas and vice versa. See diagram below. This technique increases the number of ‘data layers’ in the same radio channel between the base station and the user equipment. The common forms of MIMO in an LTE network are 2 x 2, 2 x 4 and 4 x 4 MIMO.

2.2 2 x 2 MIMO This means that there are 2 distinct streams of data encoded onto radio paths between the base station and the user equipment in both downlink and uplink directions.

Figure 1 Multiple paths for 2x2 MIMO

2.3 2 x 4 MIMO 2x4 MIMO has two extra uplink only data streams being received by the base station, as well as the two uplink/downlink streams.


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2.4 4 x 4 MIMO 4 x 4 MIMO uses 4 distinct data streams between the base station and user equipment, again in both uplink and downlink directions. 4 x 4 MIMO uses 4 distinct data streams between the base station and user equipment, again in both uplink and downlink directions. There are two main implementations of MIMO: a) Spatial Diversity Spatial Diversity employs the fact that the same data stream with different space time coding is transmitted from different antenna locations can be summed and decoded at a receiver point. This has an overall effect of increasing the SINR of the decoded signal. b) Spatial Multiplexing Spatial Multiplexing utilises multiple paths from base station antennas. Different data streams are sent from separate antennas in the same radio channel. These data streams are received and decoded and in high SINR conditions will multiply the peak data rate for a single stream by the number of separate data layers. To enable both of these modes the receiver needs to see each of the layers individually. This means a high level of isolation or orthogonality is required from the antenna sites. This can be greatly assisted in the antenna by the correct cabling of transit receive pairs to the cross polar dipoles in an antenna array. There are significant benefits to both the network and the end user of a successfully implemented MIMO network. The network benefits in increase capacity in a high SINR environment. The user benefits by an increased data throughput and enhanced user experience. It is imperative that the detailed plumbing standards set out in the next section are followed which set out the correct cabling to achieve optimal MIMO functionality.


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2.5 Plumbing differences between Optus & Vodafone MIMO 2.5.1 Optus MIMO Plumbing 2x2 MIMO (2T2R) and 2x4 MIMO, (2T4R) are used for all Optus LTE technologies, except L2300 which is 4x4 MIMO, 4T4R. All 2x2 and 2x4 MIMO technologies will upgrade to 4x4 MIMO, in the future. The plumbing standard that Optus has adopted for MIMO prioritises antenna tilt. This configuration guarantees the same antenna tilt for the two Tx/Rx data streams. For 2x2 MIMO (2T2R):  the two Tx/Rx (uplink/downlink) data streams to a single +/- band within the antenna. For 2x4 MIMO (2T4R)  the two Tx/Rx (uplink/downlink) data streams to a single +/- band within the antenna  the two RX only (uplink) data streams are plumbed to another single +/- band within the antenna. For 4x4 MIMO (4T4R) on L2300 band  the four Tx/RX data stream are plumbed to two +/- bands within the antenna. Refer to the figure below for examples of Optus plumbing.

Figure 2 On Right Huawei 12 port. On Left NSN 10 port MIMO plumbing


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2.5.2 Vodafone MIMO plumbing Vodafone 2x2 and 2x4 MIMO plumbing is distinctly different from the Optus configuration above. This is a result of Vodafone prioritising spatial diversity over tilt. For example;  On a 12 port antenna the two Tx/Rx data streams are plumbed to equivalent +ve ports on the two different panels.  On a 10 port antenna then the two Tx/Rx. data streams are plumbed to two +ve ports on one panel. FRONT

OPTUS

PANEL 2

-

3

2:4

+

6 2:3

2:6

-

2

-

5

2:5

4

+

-

-

3

1:4

2:1

+

6 1:3

1:6

-

2

1

2:2

2

6

IN AISG OUT

-

+

5

1:5

1:6

+

-

1:10

+

1:1

1:5

1:4

-

1:9

1:8

-

1:1

3

1:3

+

1:7

+

8

1

1:2

+

4

9

RV4PX310R 10 Port Antenna 2

1

PANEL 1

1:2

5

10

+

OPTUS

FRONT

PANEL 1

IN AISG OUT

4

R2V4PX310R 12 Port Antenna 2

7

AISG

+

OUT

IN

L2300

L2300

[ O1:3 + ]

[ O1:3 + ]

ANT 0

ANT 0

[ O1:4 - ]

[ O1:4 - ]

ANT 1

ANT 1

[ O2:3 + ]

[ O1:5 + ]

ANT 2

[ O2:4 - ]

ANT 2 AISG

[ O1:6 - ]

ANT 3

[ O1:5 + ]

AISG

ANT 3

L2600

L2600

ANT_TX/RXA

[ O1:6 - ]

[ O1:7 + ] ANT_TX/RXC

ANT_TX/RXA

[ O2:6 - ]

[ O1:9 + ] ANT_TX/RXD

ANT_TX/RXC

[ 02:5 + ]

[ O1:10 - ]

ANT_TX/RXB

ANT_TX/RXD

[ O1:8 + ] ANT_TX/RXB

Figure 3 On Right 12 port. On Left 10 port, Vodafone MIMO Plumbing


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3. Standard Optus Detailed Port Plumbing Drawings 3.1 Optus Template Drawing Register Optus has released a set of template drawings to be used as the standard for plumbing drawings. The configurations used throughout the template drawings are the agreed Optus Standard. They are located at; http://ecm.optus.com.au/livelink/livelink.exe?func=ll&objId=35948653&objAction=browse &viewType=1 If you do not have access to the link above you can contact Malachy O’Dolan at; [email protected] Tel 03 9933 8449, Mobile 0481 156 619 These drawings can be downloaded and used a basis to create site specific drawings; 1. The concept drawing is to be created at Feasibility (SU)/ Site Selections Stage (GF) 2. The detailed port to port connection drawing is to be created during the SAED phase and is to be used for the construction/upgrade of the site. This version of the site plumbing must be used for the plumbing drawing in the For Construction drawing set. Generic concept plumbing drawings must not be used for construction/upgrade or any build purposes. 3. The detailed plumbing drawings are also to be updated to As-built status, post build works. The updated Visio file is to be provided with the handover documents, including an image of the as-built plumbing in the MDSS Site Acceptance Document (OM37818) and also in the As-Built CAD drawing set in lieu of the concept diagrams that are currently used. The plumbing standard set out in these drawing must be followed and include;  DC/AISG is only to be activated via the A feed/main path 

All A feed/main path RF paths are to combine into the same side of a combiner. Optus’ standard is: o

MOD_0/Main/Ant Main for the A feed, and

o

MOD_1/Diversity/Ant Div for the B feed

o

NB - An exception occurs for Nokia RF Units where G900 & U900 are fed by separate units



DC paths must be clearly labelled after every visio element



RET paths must be clearly illustrated after every visio element



Ensure correct visio elements are used during creation



Ensure antennas and antenna panels are labelled



Ensure Plumbing paths are labelled with antenna ports



Ensure version history updated


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Refer to Optus Standard Templates drawings for examples. In cases where drawing variations are needed to suit site specific designs, the step back processes stipulated in the relevant guidelines are to be utilised. From these standards a site specific plumbing diagrams must be created for each site, all programs


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4. Antenna overview 4.1 Antenna types This section is sets out the port allocations for the each of the technologies for the following antennas currently utilised by Optus.

Type

Existing Optus PN

Part Number

Frequency Range

Gain

Commscope 6 port antenna

43365

RVVPX310R

698-960 MHz 1710-2690MHz

15.8/16.1/16.1dBi 17.2/17.4/18.4dBi


38627

RV4PX310R

698-960 MHz 1710-2690MHz

16/16.5/16.8dBi 16.5/17/18dBi


38626

R2V4PX310R

698-960 MHz 1710-2690MHz

15.8/16.2/16.5dBi 16.8/17.5/18dBi

Table 1 Antenna Types


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4.1.1 6 Port Commscope antenna While there are various gain types of the 6 port antenna, the allocation of the ports remains the same.

ANTENNA FEATURES ● 3 RET controllers ● 1 Address MRET, 3 for SRET  RET UID is based on: o Vendor Code o Ascii zero padding o Antenna serial number o Band Number ● AR 0000000 123456789 1 ● AR 0000000 123456789 2 ● AR 0000000 123456789 3

Figure 4 Commscope 6 Port Antenna

This antenna has 2 low band ports, and 4 high band ports. The port allocations are to follow the following standard. Antenna Connections Argus RVVPX310R 6 port Band Band 1-Low

Band 2 High

Band 3 High

RVVPX Port

eJV Name

BTS Port

Port 1 (+45)

L01

Port 2 (-45)

L02

Port 3 (+45)

High Band Comb

H05

Port 4 (-45)

High Band Comb

H06

Port 5 (+45)

NSN/Huawei L23

H07

Port 6 (-45)

NSN/Huawei L23

CCU RET ID L11

Band 1/Full Height

H12

Band 2/ Bottom Left

H13

Band 3/Bottom Right

H08

Table 2 Six Port Antenna Allocations


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Band/Segment



4.1.2 10 Port Commscope antenna The Commscope RV4PX310R 10 port antenna is currently the main use antenna and below are the standard port configurations. This antenna is constructed with the high band arrays stacked on top of each other with the low band array behind from top to bottom.

ANTENNA FEATURES ● 5 RET controllers ● 1 Address MRET, 5 for SRET  RET UID is based on: o Vendor Code o Ascii zero padding o Antenna serial number o Band Number ● ● ● ● ●

AR 0000000 123456789 1 AR 0000000 123456789 2 AR 0000000 123456789 3 AR 0000000 123456789 4 AR 0000000 123456789 5

Figure 5 Commscope 10 port antenna

The port allocations must follow the below standard. Antenna Connections Commscope RV4PX 10 port Band Band 1- Low

Band 2-High

Band 3-High

Band 4-High

Band 5-High

RV4PX Port

BTS Port

eJV Name

Port 1 (+45)

L01

Port 2 (-45)

L02

Port 3 (+45)

High Band Comb

H03

Port 4 (-45)

High Band Comb

H04

Port 5 (+45)

High Band Comb

H05

Port 6 (-45)

High Band Comb

H06

Port 7 (+45)

NSN/Huawei L23

H07

Port 8 (-45)

NSN/Huawei L23

H08

Port 9 (+45)

NSN/Huawei L23

H09

Port 10 (-45)

NSN/Huawei L23

H10

CCU RET ID L01

Band 1/Full Height

H02

Band 2/Bottom Right

H03

Band 3/Bottom Left

H04

Band 4/Top Right

H05

Band 5/Top left

Table 3 Ten Port Antenna Allocations


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Band/Segment



4.1.3 12 Port Commscope antenna Another high use antenna is the Commscope R2V4PX310R 12 port antenna. Below are the standard port configurations. This is a two panel antenna, each panel with 6 ports

ANTENNA FEATURES ● 6 RET controllers, 3 per radome ● 2 Address MRET, 6 for SRET  RET UID is based on: o Vendor Code o Ascii zero padding o Antenna serial number o Antenna Number o Band Number ● ● ● ● ● ●

AR 0000000 123456789 1 1 AR 0000000 123456789 1 2 AR 0000000 123456789 1 3 AR 0000000 123456789 2 1 AR 0000000 123456789 2 2 AR 0000000 123456789 2 3

Figure 6 Commscope 12 port Antenna The port allocations must follow the below standard. Antenna Connections Commscope R2V4PX 12 port Band Band 1-Low

Band 2-High

Band 3-High

Band 1-Low Band 2-High Band 3-High

R2V4PX Port

BTS Port

eJV Name

Ant 1 Port 1(+45)

L01

Ant 1 Port 2(-45)

L02

Ant 1 Port 3(+45)

High Band Comb (incl future 2nd )

H05

Ant 1 Port 4 (-45)

High Band Comb

H06

Ant 1 Port 5(+45)

NSN/Huawei L23 ANT 1

H07

Ant 1 Port 6 (-45)


H08

Ant 2 Port 1(+45)

L03

Ant 2 Port 2 (-45)

L04

Ant 2 Port 3(+45)

High Band Comb

H09

Ant 2 Port 4 (-45)

High Band Comb

H10

Ant 2 Port 5(+45)


H11

Ant 2 Port 6 (-45)


H12

Table 4 Twelve Port Antenna Allocation


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CCU RET ID

Band/Segment

L11

Band 1/ Antenna 1 Full Height

H12

Band 2/ Antenna 1 Bottom

H13

Band 3/ Antenna 1 Top

L21

Band 1/ Antenna 2 Full Height

H22

Band 2/ Antenna 2 Bottom

H23

Band 3/ Antenna 2 Top



4.1.4 Antenna port allocation for shared Antennas on eJV project On eJV Optus Lead sites, Optus has priority for the highband sectors located at the bottom of the antenna. These are desirable as they have the lowest cable Insertion Loss.  On 10 port antennas these are H02 (ports 3 & 4) and H03 (ports 5 & 6) 

On 12 port antennas these are H12 (ports 3 & 4 Antenna 1) and H22 (ports 3 & 4 Antenna 2)

On eJV Vodafone Lead sites, Vodafone has priority for these high band segments located at the bottom of the antenna. All Optus Standard RF Detailed Drawings reflect this convention for Optus and Vodafone lead sites.

4.2 Antenna Overview and AISG Cabling 4.2.1 10 Port Antenna AISG The antennas ports, manual override tilt ports and AISG ports are labelled at the base of the antenna. Refer to figure below. The RET cabling is illustrated in the figure below.

Figure 7 Typical 10 Port Antenna Layout


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4.2.2 12 Port Antenna AISG The Commscope R2V4PX310R 12 port antenna is made up of two sub-segments / two antenna radomes with an in-fill panel between. It requires a RET jumper cable between the two antenna segments to link up the RET motors in each. Refer to the figure below. The part number is ATCB-B01-002 for a 2m version, there is most likely some existing cables on site that are usable. The part will come shipped as standard with the antennas in the future.

FRONT

4

3

-

+ 2

-

IN AISG OUT

6

5

-

+ 1

+

4

3-1:6

IN AISG OUT

ANTENNA 1

3-1:6

ANTENNA 2

3-1:6

3

-

6

+ 2

Mod 1

Mod 1 Mod 0

+ 1

-

Mod 0

5

+

Main DIV

DIV Main

3-1:6

AISG

Figure 8 Commscope 12 Port RET Jumper Cable


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5. BTS RET Control 5.1 RET Controller Overview Since December 2013 Optus has progressively implemented BTS RET control using the AISG2 standard into the Optus Network. BTS RET control is now the Optus Standard system for controlling RET and providing DC to the MHA’s. It shall be utilised as the default for all new works. It allows the BTS to directly control antenna tilts via the AISG signal and power up MHA’s using 12 or 24V DC by using the BTS direct coaxial feed into the RF ports. This means there is no longer a requirement for third party Smart/ Bias Tees or RET controllers. Antenna tilt optimisation can now be managed through the BTS layer and eventually auto optimising tools depending on traffic patterns such as Self-Optimising Networks. For many site upgrades, the RF feeder plumbing system remains intact and some equipment can be reused. However attention is required with regards re-using the correct MHA to ensure only MHA’s that are AISG 2.0 compliant are re-used, if they are being powered by BTS RET. MHA’s that use AISG 1 do not work with BTS RET control and must be removed in these cases. Further attention is required when combiners are utilised on an RF feed that has BTS RET path with regards to DC block or pass on the relevant path depending on the RF design and Optus Standard RF Detailed Drawings. AISG and DC co-exist on the same path for MHA power, MHA control and antenna RET motor control.

Figure 9 Bias-tees used for DC & RET control (before left), BTS RET Control Activated (after right)


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5.2 Redundant RET Hardware Decommission and remove existing 3rd party RET controller, Smart Bias T’s and interconnection cables and return to Optus stores.

5.2.1 CCUs/PDUs Traditionally the Optus Mobile Network has used supplier’s hardware as below;  Commscope (Andrew) PDU ATC300-1000 900/1800/2100  Kathrein 2100 CCU (Central Control Unit) (8601006) (No Longer Used)  Triasx 900 PDU (Power Distribution Unit) (PDU0003/0004) (No Longer Used)  Argus 2100 PCU (No Longer Used) As stated, BTS RET Control is to be used as standard and CCUs/PDUs should be returned to Optus. In some isolated cases a CCU will still be required and guidance should be provided in the relevant site specific proposed design detailed in the RF plumbing diagram.

5.2.2 MHAs The reuse of existing MHA’s and antennas is possible only if they are AISG 2 compliant. The AISG 1 compliant devices should be removed and replaced with AISG 2 compliant devices if being used on a plumbing path with BTS RET. For example for some projects L700 is being installed as RRU or RFU on feeder and is separate from existing plumbing and is being used for BTS RET Control. In these cases the existing plumbing is not being combined into, and therefore AISG 1 devices may stay as long as they are functioning properly. The following is a list of possible MHAs that could be found on sites that are not AISG 2 compliant and must be removed if being used on a combined feeder path with BTS RET:  Argus 2100 MHA - MAX12-S2 (SAP#30046)  Kaelus/Triasx 900 MHA - TMA0022F1V1 (SAP#29380)  Kathrein 2100 MHA - 78210147 (SAP#24886)  Argus 900 MHA - G20052A1 TMA (SAP#23825) Redundant RET alarm cabling including corresponding Krone jumpers must be removed and taken off site, integration must also remove the alarms during integration as they will be internally monitored by the BTS.


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6. Combiners Optus currently uses the following combiners. The table below outlines which combiners have DC pass and DC block. Use the table below as a check to ensure DC stops are located in the correct position in a site specific RF plumbing drawing.

COM Number

Optus SAP No

Vendor P/N

Band

COM1

38933

E15V90P44

9/1.8-2.6

COM2

38934

E11F01P56

COM2a

44883

COM2b

IL @ 2.176 MHz (dB) AISG

DC PASS

DC BLOCK

MOD 0 PORT 1

MOD 0 PORT 2

MOD 1 PORT 2

MOD 1 PORT 1

7/8.5/9

ALL PORTS

NONE

<7.5

TYTC002D031(F1V5)

7 + 9

45392

TYTC002D015(F1V2)

8.5 + 9

ALL PORTS

NONE

COM3

38935

E15V90P43

1.8/2.1/2.3/2.6

ALL PORTS

NONE

<7.5

COM4

38936

E11F05P82

1.8/2.1

ALL PORTS

NONE

<0.5

COM5

43367

E11F01P57

1.8-2.1/23

ALL PORTS

NONE

<0.5

SBC1

38937

E15Z55P02

9

ALL PORTS

NONE

<4

SBC2

43634

E11F01P58

2.1/2.1/2.1

ALL PORTS

NONE

No DC By Pass

SBC3

43717

E15Z50P37

1.8+1.8

Lowband to Ant

Highband to Ant

<0.5

TRIPLXR 9BP

36528

E11F05P91

9/1.8/2.1

900 PORT

1800/2100

Required

TRIPLXR 18BP

36529

E11F05P90

9/1.8/2.1

1800 PORT

900/2100

Required

TRIPLXR 21BP

36530

E11F05P89

9/1.8/2.1

2100 PORT

900/1800

Required

43512

DBX0038F3V3-1

2.1 + 2.1

ALL PORTS

NONE

Required

KAELUS Triple SBC 21

43511

TBC0019F1V2

2.1 + 2.1 + 2.1

AISG&DC B-3 Port

B1 and B2 ports

KAELUS Triple SBC 21

44824

TBC0019F1V3

2.1 + 2.1 + 2.1

AISG&DC Optus Node BP Port

KAELUS Dual SBC 21

Table 5 Combiners DC Block/Pass


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<0.5



7. BTS DC Injection and DC stops 7.1 BTS DC Injection to Power MHAs Prior to BTS DC injection, DC was supplied from 3rd party devices such as Bias-T’s and ACU or CCUs. With the implementation of BTS DC injection, both Huawei and NSN BTS equipment now have the capacity to supply DC to power MHA’s and RET’s. Many problems have been experienced with BTS RET Control when plumbed or configured incorrectly. Problems have included DC current drain, insufficient power to MHAs, intermittent RET issues, conflict between RET control between Master and Non Master BTS, MHAs shutting down, RTWP, etc. Huawei and NSN BTS equipment’s are capable of supplying enough current to power multiple MHA’s and RET’s from 1 BTS. However depending on the feeder length and combining system, total system current draw must be considered and appropriate current limit alarms setting configured. The Technician on site must inform RIC of a change in the DC Over Current Alarm to an appropriate setting to allow sufficient current for all devices. This will ensure the BTS will not shut down the DC BUS during DC Injection and ALD Scanning. It is also important to understand how an antenna functions with respect to DC on the RF feeder. Antennas are a DC short to ground and if DC is injected onto a feeder without an MHA or a DC Stop then there is the potential for DC overcurrent and shutdown. This is also relevant for combiners that have DC pass activated. Multiple BTS’s can also inject DC into the system. These scenarios are referred to as Master BTS and Non Master BTS. Depending on whether Non Master BTS has DC injection active, will affect the Current Drain value. MHA’s and RET’s must also be AISG 2 compliant in order for MHA activation and RET integration via BTS is to occur. It is imperative that the Optus Standard RF Detailed Drawings are followed and appropriate current alarms set to avoid the above issues.


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7.2 DC Injection and DC Stops Optus found that when one or more BTS RF module has DC injection activated and RF paths are combined with another BTS via a combiner, the DC is active on all parts of the combiner due to same bus, causing a DC short or excessive current drain. The issue occurs despite correct current limits set in the BTS, (in some instances during RET integration), and the BTS over current alarm fault appears. The BTS cuts power to the MHA BUS and the MHA’s begin operating in bypass mode resulting in reduced uplink performance and possibly even RTWP alarms. To eliminate current drain and BTS over current alarm from occurring, DC Stops must be installed in the RF path at specific locations as set out in the Optus Standard RF Detailed Diagrams where BTS’s share the same RF path via combiners. It is Optus Standard to always make sure, wherever possible, that all the A Feeds (or main paths) are on the same side of the combiner that is on the AISG/DC bus, i.e. do not mix A & B feeds.

7.2.1 DC Injection & Inbuilt DC Stops in Huawei Equipment Tests conducted by Optus confirm that when Huawei RFU’s are sharing a RF path via a combiner bus and DC is injected into the main feed (Tx/Rx) RF path by the master RFU, the non-master RFU drains current from master RFU at a low rate (<30mA). An exception is the Huawei L700 RFU which drains 300mA. If the L700 RFU is configured to act as the Master BTS for RET control the current drain issue will not occur. The Huawei RF modules will also continue to drain even if powered off in the system. It is concluded that there are no DC STOPS built into Huawei RF Modules. Huawei have confirmed this to be the case, see tables below for DC/AISG capabilities. Optus has adopted a policy to install DC Stops on all combiner ports (except Master) in all Huawei areas* where the BTS’s share the same RF bus on the combiner when BTS RET Control is activated. *NB - except HV RF designs where 2 x COM3s are used on the one plumbing line a DC Bi-pass cable solution is utilised and no DC stops are required. Further DC stop are also to be installed for Vodafone’s Huawei BTS on all combiner ports (except Master) where the BTS’s share the same RF bus on the combiner when BTS RET Control is activated.


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Huawei 2 port RRU/RFU Port A Frequency Band & Model

Port B

Tx/Rx or Rx

DC/AISG

DC stop

Tx/Rx or Rx

DC/AISG

DC stop

L700 RRU RRU3268

Tx/Rx

DC/AISG

No

Tx/Rx

DC

No

L700 LRFUe

Tx/Rx

DC/AISG

No

Tx/Rx

DC

No

U900 RRU3936

Tx/Rx

DC/AISG

No

Rx

DC

No

U900 MRFUv2

Tx/Rx

DC/AISG

No

Rx

DC

No

L1800 RRU3929

Tx/Rx

DC/AISG

No

Rx

DC

No

L1800 MRFUd

Tx/Rx

DC/AISG

No

Rx

DC

No

U2100 WRFU

Tx/Rx

DC/AISG

No

Rx

DC

No

L2600 LRFU

Tx/Rx

DC/AISG

No

Tx/Rx

DC

No

Table 6 Huawei two port RRU/RFU DC & AISG capabilities

Huawei 4 port RRU Frequency Band Model

Port A Tx/Rx or Rx

DC/ AISG

L700 RRU3262

Tx/Rx

U2100 RRU3832

Port C DC stop

Port D

Port B

Tx/Rx or Rx

DC/ AISG

DC stop

Tx/Rx or Rx

DC/ AISG

DC stop

Tx/Rx or Rx

DC/ AISG

DC/ No AISG

Rx

DC

No

Rx

DC

No

Tx/Rx

DC/ No AISG

Tx/Rx

DC/ No AISG

Rx

DC

No

Rx

DC

No

Tx/Rx

DC

No

L2300 RRU3256

Tx/Rx

DC/ No AISG

Tx/Rx

DC

No

Tx/Rx

DC

No

Tx/Rx

DC

No

L2600 RRU3260

Tx/Rx

DC/ No AISG

Rx

DC

No

Rx

DC

No

Tx/Rx

DC

No

Table 7 Huawei four port RRU DC and AISG Capabilities


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DC stop



7.2.2 DC Injection & In built DC stops in NSN Equipment. Tests conducted by Optus and confirmed by Nokia indicate that most Nokia Flexi modules provide in-built DC stops (0mA current drains) via in-built BiasTee’s. The following exceptions apply: NSN L700 FRPA The diverse/B Feeds (Ant 2, 4 & 6) on the NSN L700 units do not have a DC stop and are a high current drain if connected to the AISG/DC bus, will pull the bus down. DC stops are to be installed for L700 B feeds if they are connected to a combiner side that has DC/AISG active. NSN L2300 RRH The NSN L2300 RRH does not have any in-built DC Stops on any port. The NSN L2300 RRH provides high current drain. DC stops are to be installed for all L2300 feeds if they are connected to a combiner side that has DC/AISG active. Further, NSN 2300 RRH does not provide BTS RET capability (no DC AISG injection from RF ports). If it is installed on its own RF path (i.e. not sharing RF path with other BTS via combiner bus so that the other BTS can power the bus) the 2300 RRH is not able to power the 2300 MHA. A Commscope CCU is to be installed with Bias-Tees on the 2300 feeders in order to power the MHA. This configuration is not unusual, unless a RRH is installed at the base of a tower/pole or in a shelter such as for the HV Tower or Light Pole RF design. The CCU is not to be used to provide RET control in this arrangement. Other frequencies are to be used as set-out in section 7.5. NSN L2600 FRHF The diverse/B Feeds (Ant 2, 4 & 6) on the NSN L2600 units do not have a DC stop and are a high current drain if connected to the AISG/DC bus, will pull the bus down. DC stops are to be installed for L2600 B feeds if they are connected to a combiner side that has DC/AISG active.


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See Tables below for Nokia DC/AISG capabilities.

Nokia 4 port RRH Freq Band Model L2300 FZNI

Ant1

Ant2

Ant3

Ant4

Tx/Rx Rxd

Bias T

DC stop

Tx/Rx Rxd

Bias T

DC stop

Tx/Rx Rxd

Bias T

DC stop

Tx/Rx Rxd

Bias T

DC stop

Tx/Rx

Nil

No

Tx/Rx

Nil

No

Tx/Rx

Nil

No

Tx/Rx

Nil

No

Table 8 Nokia four port RRH DC and AISG Capabilities

Nokia 6 port Flexi RF Units Ant1 Ant2 Ant3 Ant4 Ant5 Ant6 Frequency Band Model Tx/Rx Bias DC Tx/Rx Bias DC Tx/Rx Bias DC Tx/Rx DC/ DC Tx/Rx Bias DC Tx/Rx Bias DC Rxd T stop Rxd T stop Rxd T stop Rxd AISG stop Rxd T stop Rxd T stop L700 FRPA Tx/Rx

DC/ Yes Tx/Rx Nil AISG

DC/

No Tx/Rx AISG Yes Tx/Rx Nil

DC/


No

G/U900 FXDA

Tx/Rx

DC/ Yes AISG

Rx

DC Yes Tx/Rx

DC/ Yes AISG

Rx

DC

Yes Tx/Rx

DC/ Yes AISG

Rx

DC Yes

G/U900 FXDB

Tx/Rx

DC/ Yes AISG

Rx

DC Yes Tx/Rx

DC/ Yes AISG

Rx

DC

Yes Tx/Rx

DC/ Yes AISG

Rx

DC Yes

L1800 FXEA

Tx/Rx

DC/ Yes AISG

Rx

DC Yes Tx/Rx

DC/ Yes AISG

Rx

DC

Yes Tx/Rx

DC/ Yes AISG

Rx

DC Yes

L1800 FXEB

Tx/Rx

DC/ Yes AISG

Rx

DC Yes Tx/Rx

DC/ Yes AISG

Rx

DC

Yes Tx/Rx

DC/ Yes AISG

Rx

DC Yes

U2100 FRGF

Tx/Rx

DC/ Yes AISG

Rx

DC Yes Tx/Rx

DC/ Yes AISG

Rx

DC

Yes Tx/Rx

DC/ Yes AISG

Rx

DC Yes

U/L2100 FRGT

Tx/Rx

DC/ Yes AISG

Rx

DC Yes Tx/Rx

DC/ Yes AISG

Rx

DC

Yes Tx/Rx

DC/ Yes AISG

Rx

DC Yes

L2600 FRHF

Tx/Rx

DC/ Yes Tx/Rx Nil AISG

DC/


DC/


Table 9 Nokia 6 port Flexi RF Units DC and AISG Capabilities


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No



7.3 System Current Draw System Current Draw refers to the total amount of current drawn from the total amount of RET’s and MHA’s per sector. This total provides the minimum operating value needed to be configured in the BTS so that it can supply enough current without going into alarm. The inrush current of each device at start up and voltage drop in the system also needs to be considered. Due to these factors we have calculated current consumption based on minimum voltage. Commscope have stated that their devices have a maximum of 200mA inrush current per device for 3msecs which normalises to operational current values over 100msecs. The table Preferred MHA equipment and Preferred Antenna equipment lists each equipment’s current draw, refer to the following two tables.

Band

Power needed in AISG mode

Supply Voltage (Min - Max VDC)

Current mA used @ minVDC

Current mA used @12VDC


E15R02P27

700

2.3W. Single feed.

7-30

329mA

192mA

96mA

38916

E15R02P26

850

3W. Single feed

7-30

429mA

250mA

125mA

MHA3

37011

E15R02P15

900

1.7W. Single feed

7-30

243mA

145mA

75mA

MHA4

35931

E15S09P75

1800

1.6W. Single feed

7-30

229mA

130mA

70mA

MHA5

35934

E15S08P93

2100

3W. Single feed

7-30

429mA

250mA

125mA

MHA6

38918

E15S07P13

2300

4.7Wx2. Single feed

7-30

1343mA

784mA

392mA

MHA7

38919

E15S02P49

1800+2100

2.7W. Single feed

7-30

386mA

225mA

113mA

MHA8

38920

E15R02P28

700+900

3W. Single feed

9.5-30

316mA

250mA

125mA

MHA9

38931

E15R02P29

700+850+900

3W. Single feed

9.5-30

316mA

250mA

125mA

MHA10

42204

E15R02P30

850+900

3W. Single feed

9.5-30

316mA

250mA

125mA

MHA13

43633

E15S09P54

2600

1.7W. Single feed

7-30

243mA

140mA

70mA

MHA14

42981

E15S02P51

1800+2100

2.2W on each input port. Dual feed

7-30

314mA

183mA

92mA

44424

E15S02P60

1800+2100 LB bypass

2.2W on each input port. Dual feed

7-30

314mA

183mA

92mA

MHA17

E15S02P50

1800+2600

4.4W. Single feed

7-30

629mA

370mA

185mA

MHA Number

Optus SAP No

Commscope P/N

MHA1

38915

MHA2

Table 10 Preferred MHA equipment


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Type

Part Number

Frequency Range

RET

Current mA used @ Tilt operation



Commscope 6 Port Antenna

RVVPX310R

698-960 MHz

3

+70mA during Tilt Adjustment

30mA per motor

15mA per motor

5


30mA per motor

15mA per motor

6


30mA per motor

15mA per motor

Commscope 10 Port Antenna

698960MHz

RV4PX310R

17102690MHz 698-960 MHz

Commscope R2V4PX310R

17102690MHz

12 Port Antenna

Table 11 Preferred Antenna equipment All newly approved models of MHA’s are found in the spread sheet below (Available only on Optus Intranet): http://smm-mnis.optus.com.au/bde/Equipment_Forecast/

7.4 System Current Settings The mandatory Current Limit settings for the BTS are outlined in the table below. The Technician must instruct the RIC to set the below current limit settings when activating TMA’s/commissioning BTS RET.

BTS Type

Metro

Regional

HV RF Design All RF Units in Shelter on feeders

Min

Max

Min

Max

Min

Max

Huawei

10mA

1500mA

10mA

1500mA

10mA

(depending on unit)

NSN

Use Default

Use Default

Use Default

Use Default

Use Default

Use Default

2300mA

Table 12 BTS Current Limit Settings For further detailed knowledge of how this figure is derived see Appendix 1 - 4.


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7.5 BTS RET Control Frequencies and Fall back BTS RET control frequency priorities apply as below (including Dual Band MHA). The BTS for the below frequencies are the masters for DC & AISG. DC injection only will also be required from other BTS to power MHAs, refer Optus Standard RF Detailed Drawings. HUAWEI Optus preferred BTS RET Control and Fall-back Solutions Project

Preferred

Fall-back 1

Fall-back 2

Fall-back 3

Leyland

L700

L2600

U2100

U900

eJV GF

U2100

L700

U900

eJV SU

U2100

L700

U900

Metro SU

U2100

L700

U900

Table 13 Huawei Optus Preferred BTS RET Control

NSN Optus preferred BTS RET Control and Fall-back Solutions Project

Preferred

Fall-back 1

Fall-back 2

Fall-back 3

Leyland

L700

L2600

U2100

U900

eJV GF

U2100

L700

U900

eJV SU

U2100

L700

U900

Metro SU

U2100

L700

U900

Table 14 NSN Optus Preferred BTS RET Control

7.5.1 Exceptions Regional LTE Site Upgrades For some Regional LTE Site Upgrades on the fringe boarding eJV Metro areas sites may already have 2100 BTS RET already configured. If the BTS RET is properly functioning it does not need to be re-configured to 700. However, if RET has been configured on CCU of the 2100 band then it must be reconfigured for BTS RET on 700. Crown Castle Sites For Crown Castle sites different RRU and antenna configurations apply. The following antennas and frequency arrangements are to be utilised for BTS RET control. Tranche 1 RET and DC configuration to be deployed. a) VHA Antenna i. Swap out VHA 2100 SBC with a new 2100 SBC which passes DC (if required). ii. Configure RET control via VHA 2100 b) Optus Panel


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i. eJV - RET control via U2100 for eJV with standard fall back Configurations as per eJV guidelines.

Tranche 2 – Standard Antenna Designs 2 x 12 port antenna Configuration RET and DC configuration to be deployed a) 1st eJV Antenna with VHA U21 i. Configure RET control via Optus U2100 b) Optus Only Antenna i. RET control Via U900 for EJV with standard fall back Configurations as per eJV guidelines

2 x 10 port antenna Configuration RET and DC configuration to be deployed a) 1st eJV Antenna with VHA U21 i. Configure RET control via Optus U2100 b) Optus Only Antenna i. RET control Via U900 for EJV with standard fall back Configurations as per eJV guidelines 1 x 12 port antenna (as per Optus Only Metro solution) RET configuration to be deployed a) eJV Antenna with VHA i. As per eJV Guidelines


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8. BTS Ret Integration and Activation Process 8.1 BTS RET Integration 8.1.1 Pre BTS Integration Activities by Deployment Engineer 1. Field Tech/Deployment Engineer is to book in the BTS RET/DC injection activity with the VPL RIC via email 3 business days prior to any BTS RET activation work with plumbing diagrams and proposed tilts. The below contacts are to be used for bookings. If not available communication to be directed to VPL RIC Manager: a. Nokia sites: [email protected] b. Huawei Sites: [email protected] 2. Proposed tilts are to be provided by the Deployment Engineer to the RIC when the BTS RET is booked. These RET tilts shall be based on the site specific RF design diagram provided or approved feasibility report. 3. RIC schedules the activity and assigns RIC Engineer for the activity.

8.1.2 Pre BTS Integration Activities at Site 1. Tech to check and document current electrical RET setting on third party RET controller before it is removed. Before removing existing antenna existing mechanical settings are to be documented. 2. Remove all redundant third party equipment, connect RF tails directly to the BTS RF port. This applies to both Huawei and NSN BTS’s. Make sure all connectors are tightened to manufacturer’s specifications using a torque spanner. You may be required to exchange or modify tails if genders do not align. 3. DC Stops must be installed on all required locations as per Optus Standard RF Detailed Drawings. 4. Technician must connect locally to BTS and perform RET scan and verify connectivity to MHAs and all RET elements. This ensures full visibility of RET elements prior to RIC involvement. 5. It is mandatory practice that existing antenna mechanical and electrical tilt readings are documented and photographed during the early phase of site builds. This practice provides a safeguard ensuring newly installed antenna tilts are identical to existing ones. The contractor will be held accountable if evidence is not provided and they may be required to revisit the site to undertake optimisation works. 6. If there is a conflict on the proposed tilts the Tech shall call the RF engineer and follow their advice.


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8.1.3 RIC Integration Process If you do not follow the process below your site will not be integrated, there will be no exceptions. 1. Technician to call RIC and request BTS RET activation. Tech to provide existing tilt information to RIC engineer plus confirmation of required antenna tilts for original antenna and new antenna tilt information. 2. RIC Engineer completes the DC injection activity and stores back up on the shared drive. 3. RIC Engineer to set current limit settings. 4. RIC Engineer performs RET tilt cycling test by adjusting RET motor to positive and negative limits. 5. Labelling the RET motors elements per sector according to the convention. 6. SDR to be updated with technology(s) that have had BTS RET activated. 7. Screenshots of RET configuration is taken. 8. Confirmation email is provided to field tech/Deployment Engineer containing screenshots. 9. BTS RET Checklist is to be completed 10. Field Tech/Deployment Engineer needs to rebook the activity with RIC if the activity is not completed in first attempt. 11. RAE is advised of activity status in Daily activity report. The Field Engineer is required to stay on site until final confirmation of successful BTS RET operation is received from the RIC Integration Engineer. Leaving site prior to this is not acceptable as hazard and fall back actions would not be possible. The BTS RET QA Checklist is contained within OM36470 Optus Site Works QA Checklist. The RET configuration screen shots and BTS RET QA Checklist is to be prioritised in the handover documents. Note: A license upload is required for NSN 3G and Huawei LTE but is not required for NSN LTE and Huawei 3G. Contact MI for details of how to upload licenses.


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8.2 No BTS is Present. What To Do? On sites where there is no BTS present to provide RET Control it is expected that the RF path is commissioned and tested for successful MHA RET operation in the future. During RFE works, an ATC-300 (ACU) alongside a wide band Bias Tee is to be deployed temporarily to set-up and test the MHA’s and RET system before DC injection is permanently controlled via the BTS. Commission all Optus RET/MHA Antenna hardware and capture data from ACU. Screen captures must display the following information: antenna model type and allocated down tilts. These must be presented to Optus as a mandatory part of the Optus Site Handover Pack. ATC-300 (ACU) will only be a permanent installation in scenarios where 2300 MHA are deployed in the NSN Network. The ACU will be providing DC Injection only and the BTS will be controlling the RET. NOTE: You will be held accountable for any faults found during formal RET integration if you fail to provide appropriate documentation.

Figure 10 Feeder Termination Point No BTS Present Documentation on how to Commission using a Commscope ATC-300 can be found in OM37416 Optus Commscope RET /MHA Deployment Guide (old OM): http://optusmanual.optus.com.au/om/html/site.OPTUS.index.jsp?idocids=37416


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NOTE: Kathrein Antennas Only Kathrein antennas rely on external RCU (remote control unit) that is placed at the bottom of the antenna to control RET. These RCU are individual units from each other and will require serial number documentation. Best practise shows a RCU labelled with Sector and Antenna Band will help identify the serial numbers when scanning using the Kathrein CCU. Therefore it is imperative that the contractor has captured the correct serial number of the RCU alongside the corresponding frequency band and sector.


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9. Ret Activation Responsibilities 9.1 RFE Contractor Responsibilities The RFE installation must be completed for all technologies on site. The RFE installation must also provide connectivity for technologies not yet installed but in the Site Specific RF plumbing drawings. The RFE contractor is responsible for installing the AISG cable from the MHA to the antenna. For a 12 port antenna, the RFE contractor must also install the RET jumper cable between panels, even if this cable is not provided with the 12 port antenna. The RFE contractor must commission and test the MHA/RET system.

9.1.1 Vodafone Existing 2100 RET Integration at Optus Lead Sites For Optus lead eJV sites where Vodafone is assigned their own antenna, the Optus contractor is also responsible for ensuring the existing Vodafone 2100 BTS has BTS RET control activated, tested and cut over to BTS RET. The Contractor shall also confirm the 2100 MHA is functioning properly. The contractor shall confirm the BTS RET and MHA are operating correctly by contacting the Vodafone GNOC-ORCA for BTS RET activation.

9.1.2 Vodafone Other Technologies For Optus lead sites where there are existing MHAs or new MHAs being installed by the Contractor for Vodafone technologies yet to be installed, the contractor shall ensure the plumbing system does not have potential for future DC current drain by ensuring DC stops are installed as per Optus Standard RF Detailed Drawings and Site Specific Detailed Plumbing Diagram. The Contractor shall also validate the DC connectivity of the MHA and AISG connectivity to antenna RETs via the RF path that is to be used for BTS RET. It is recommended to carry a Commscope ATC-300 control unit (recovered equipment) and a wide band Bias Tee in order to test the MHA. Ensure all screen captures are documented.

9.1.3 No VHA on site For Optus lead sites where there are no Vodafone BTS’s installed (Optus lead contributed sites) the Contractor shall validate that DC stops have been installed and MHA and RET connectivity. To validate MHA and RET connectivity the Contractor shall connect a temporary ATC-300 (ACU) alongside a wide band Bias Tee on plumbing path to be used for BTS RET (Voda BTS not yet installed) and validate the DC connectivity of the MHA and AISG connectivity to antenna RETs. Screen captures must be taken and provided in Optus Site Handover pack. Ensure feeder connector caps are re installed after testing and commissioning.

9.1.4 Optus Lead eJV lead with VHA BTS RET Control on Shared Antenna At any Optus lead eJV site that has a shared antenna where VHA have configured RET Control via their equipment (usually BTS RET) the Contractor shall convert the site to Optus BTS RET Control in accordance with this manual.


Page 34



Figure 11 Sample Screen Capture

9.1.5 BTS Installing Contractor Responsibilities Typically BTS RET will already be activated for site upgrades by the RFE contractor on existing technologies. If it has not been activated the BTS Installing Contractor is to convert the site to BTS RET. In some upgrade cases and for greenfield builds, if the RRU is to be used for BTS RET, the contractor installing the BTS (RRUs/RFUs) will be responsible for installing the AISG cable from the RRU to the antenna, as per site specific plumbing design. In these cases, they will also be responsible for initiating BTS RET commissioning and testing once all AISG cables have been installed. They shall also check the plumbing system to confirm if DC stop have been correctly installed by the RFE contractor. If required they shall add or make appropriate rearrangements of DC stops to ensure no DC current drain issues and MHA function.

9.1.6 RET on shared antennas Where shared antennas are used, the lead operator will be responsible for BTS RET and controlling and monitoring alarms for the RET system at the site.


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10. Process to Contact VHA GNOC for BTS RET Activation The Vodafone GNOC-ORCA must be booked for BTS RET/BTS DC injection via email 3 business days prior to any BTS RET activation work with plumbing diagrams and proposed tilts. It is the responsibility of the Deployment Engineer to ensure this occurs. Please email this to: [email protected] During the PTW outage it is essential that Bias injection is enabled on the Vodafone BTS by contacting the Vodafone GNOC-ORCA (DO NOT CONNECT Vodafone TAILS DIRECTLY TO THE RFU ANTENNA PORT, UNLESS THE Vodafone CONTACT PERSON CONFIRMS THAT THE PORTS ARE ACTIVATED) Please contact: Vodafone GNOC-ORCA Phone: 1800 184 298 – Select Option-1 and ask for Rajesh Alternatively if there are delays on the line SMS Rajesh directly on: +91 9884 66 44 22 (India)

For escalations and troubleshooting please contact: Kevin Zang Mobile: 0401 398 362 Email: [email protected]


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11. MHA Naming Convention The MHA naming convention is a spin off from the RET Naming Convention, it is very simple and described as below. Refer to JB2323-OO_S1_L7G9U9.1. Site JV Number, Operator Lead, Operator MHA Owner, Sector Number, technology and band, + (.1, or .2 which is the MHA Port one or MHA Port 2; Where 4x Ports or more MHA the controller will assign .3, .4, .5, .6 etc.).

TMA Device Information Gain ID

O_S1_L7G9U9.1

O_S1_L7G9U9.2

Type

AISG

TMA

TMA

2

2

Stat

OK

OK

Sector

alpha (1)

alpha (1)

Base Station ID

JB2323-O

Mode

V UL: UL: 703 748 MHz, DL 758 – 803 MHz

Normal

12

Normal

12

/UL: 889-915 MHz, DL: 940-960 MHz

JB2323-O

V UL: UL: 703 748 MHz, DL 758 – 803 MHz /UL: 889-915 MHz, DL: 940960 MHz

Table 15 MHA Labelling Convention


Top of Form

Bands

Page 37



12. Appendix Appendix 1 Calculating System Current Draw The following example shows how you can calculate system current draw to determine the minimum limit required to be set in the BTS. We will take into consideration of Inrush current and Voltage drops. Scenario: 1 x 10p - JV Feeder Solution – HV – Optus Lead Optus U2100 BTS for DC Injection combined with Optus L1800 and Optus L2300 RF feeder path powering 2 MHA and 5 RET motors per sector. Inrush Current: 200mA per MHA OPTUS L1800 : ~35mA Current Drain

OPTUS U2100 DC INJECTION

COM 3

OPTUS L2300 : ~35mA Current Drain

Triplexer E11F05P89 - 21 DC BP INBUILT DC BLOCK on 9/18 COM 3

COM 5 COM 3 or COM 5?

Triplexer E11F05P91 – 9 DC BP INBUILT DC BLOCK on 18/21

MHA 6 E15S07P13 1343mA @ 7VDC 784mA @12VDC

MHA 7 E15S02P49 386mA @ 7VDC 225mA @12VDC 1 x 10p Antenna 5 x RET @ 30mA



MHA : 1729mA @ 7VDC MHA : 1009mA @ 12VDC RET : 150mA TILT Operation: 70mA BTS : 70mA

1 x 10p Antenna 5 x RET @ 30mA

Total Max Draw : 1879mA + 70mA Total Draw (Normal Operation) : 1159mA +70mA Total Drain : 70mA

Figure 12 Calculating System Current Draw System Current @ normal operation in this scenario is 1159mA + additional 70mA During Tilt operation. However, if there are voltage drops present in the system, System Current will be at the worst case 1879mA + additional 70mA during Tilt Operation. Optus has adopted to take in consideration Max Draw Value as the minimum current limit and applied a limit of 2500mA in this scenario.


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Appendix 2 Huawei BTS Current Drain & DC Stop Requirements The below chart illustrates Optus’ findings in regards to Huawei RRU/RFU current drains. For troubleshooting please refer back to this chart as a fall back solution and consult your BDE. For the A Feed with BTS RET activated: Does Master BTS with DC Injection No No DC Stop Active combine with Required any other BTS? Yes

Yes Is Non Master BTS DC Injection Active?

RFU L700 : Current Drains ~ 300mA RRU/MRFU Type

RRU L2300 : Current Drains ~ 26mA RFU 8/9/18/21 : Current Drains < 20mA

No RRU/MRFU Type

RRU L2300 : Current Drains ~ 35mA RFU L1800 : Current Drains ~ 35mA

No DC Stop Required

RFU L700: Current Drains ~ 410mA RFU 850 : Current Drains > 1500mA RFU 900 : Current Drains ~ 1180mA

DC Stop Required

MRFU 2100 : Current Drains ~ 1828mA MRFUd 2100 : Current Drains ~ 234mA

Figure 13 Huawei BTS Current Drain Trouble Shooting


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DC Stop Required No DC Stop Required



Appendix 3 NSN BTS Current Drain & DC Stop Requirements The below chart illustrates Optus’ findings in regards to NSN RRH/RF Modules current drains. For trouble shooting, please refer back to this chart as a fall back solution and consult your BDE. For the A Feed with BTS RET activated:

Does Master BTS with DC Injection No Active combine with any other BTS?

No DC Stop Required

Yes

Is No Non Master BTS DC Injection Active? Yes RRH/RF Module Type 900/1800/2100 : 0mA (in built DC Stop) RRH L2300 : Short 700/2600 : Short on B Feed (rxd) Figure 14 NSN BTS Current Drain Trouble Shooting


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No DC Stop Required DC Stop Required



Appendix 4 Equipment Current Drain on Main Feed Port The below table summarised the Current Drain Lab Tests conducted by Optus to determine what configurations require DC stops. Situation

NSN

Huawei

Voltage

24V (Hence as MHA are constant power = half the current required for NSN than with Huawei as NSN is twice the volts) No Built in DC stop 2300 RRU DC short so require DC stop if on combiner bus

12V

Does current from Master BTS (controls MHA & AISG) drain into non-Master BTS on the same combiner bus

When NonMaster BTS DC powered and on bus

When NonMaster BTS powered down but still on bus

No Built in DC stop 2300 RRU DC short so require DC stop if on combiner bus

Does Bus failure happen when 2 BTS are both configured as the master

No 1st BTS configured takes control, the 2nd BTS cannot detect devices

Does Bus failure happen when BTS is configured as the master and Andrew CCU also on the bus Current limit Default current limit (Note for power setting requirements NSN current is twice the value of Huawei as NSN at 24V not 12V) Can current limit be increased

Yes

If current limit exceeded what happens

Yes RFU’s U85 / U9/L18/U21:<20mA RRU L23: 26mA RFU L7:~300mA !!! (needs DC stop) RFU L700: 410mA RFU U850: overcurrent (>1500mA) RFU U900: 1180mA RFU L18: ~35mA U21 WRFU: 1828mA U21 WRFUd 234mA RRU L23: ~35mA No 1st BTS configured takes control, 2nd BTS cannot detect devices, thus if sending ALD command, it will be rejected Yes

215mA for 1800, 2100 units 800mA for low band units & similar for 2600 RRU No setting for 2300 RRU as no BTS RET

450mA

No Hence MHA >2.4 W may need a Andrew CCU to power some MHA’s (especially MHA 2300) Or if 2 BTS on bus then turn on DC for both BTS and power will sum MHA bus goes down and MHA power off, only a manual reset of BTS recovers the bus

Yes Has been set as high as 1500mA and has driven multi MHA’s , no need for Andrew CCU MHA bus goes down and MHA power off, seems only a manual reset recovers the bus, though some version units may recover it has not been witnessed

Table 16 Results from Optus Current Drain Lab Test -Document End-


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OM38040 MIMO Port Plumbing BTS RET Control Deployment Guide v3 0

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