Motorola BTS Training

Objectives By the end of this chapter the student will be able to :-

State the functional areas of the Horizon II macro cabinet.  Descr Describe ibe the the fun funct ction ionss and and oper operat ation ion of the the Horizon II macro Digital modules.  Desc Descri ribe be the the cab cabin inet et RF RF Comp Compon onen ents ts..

Basic Block Diagram of Cabinet

 Antenna

Thr ee ee

RF interface to Antenna ( Transmit Transmit - Combining and filtering) filtering) (Receive (Receive ± Amplification Amplification and filtering) filtering)

Main Functional ar eas: eas:

1.

Digital Cards

2.

Radios (CTU2)

3.

RF equipment

E1 Link

CTU2

CTU2

CTU2

CTU2

CTU2

Digital Cage == Controls the cabinet  Alarms Power Supplies

CTU2

Basic Block Diagram of Cabinet

 Antenna

Thr ee ee

RF interface to Antenna ( Transmit Transmit - Combining and filtering) filtering) (Receive (Receive ± Amplification Amplification and filtering) filtering)

Main Functional ar eas: eas:

1.

Digital Cards

2.

Radios (CTU2)

3.

RF equipment

E1 Link

CTU2

CTU2

CTU2

CTU2

CTU2

Digital Cage == Controls the cabinet  Alarms Power Supplies

CTU2

The Horizon II macro BTS hardware supports the following functionality:



Support of 6x double density CTU2 Single or Double carrier per Radio.



Horizon II Site Controller (HIISC)   ± Inte Integr grat ated ed NIU NIU Inte Integr grat ated ed FMUX FMUX   ± E1 supp support ort Enhanc Enhanced ed E1 Redund Redundan ancy cy  ± Incre Increas ased ed Capac Capacitity/r y/remo emova vabl blee flash flash media media  ± Incr Increa ease sedd RSL fun funct ctio iona nalility ty



Expansion of Horizon II macro cabinets to support suppor t 24 carriers per BTS site. Horizon II Expansion Multiplexer (XMUX) Site Input/Output (I/O) Panel



Interoperability with current M-Cell and HORIZON macro products

HORIZON

II macro Cabinet Fr ont ont View Alarm Board

Site Controller  (HIISC)

Circuit Breaker  Card (CBC)

Power  Supply Units (PSU)

Cooling Fans

CTU2

HORIZON

SURF2

II macro Cabinet Top View Site I/O Panel

Power  Supply

Link  Interface Board

EAS Alarm, PIX 0 & 1

Tx Blocks

Cabinet Power Supply Maximum 4x PSU per cabinet ± One for  Redundancy Depends on the number of Radios fitted. The Cabinet can support the three types of power  supply  +27V (negative earth)  -48V (positive earth)  Nominal 120/240V AC

Hor izon

II

macro

cabinet power  supply r equir ements

Nominal Voltage

Voltage supply range

Current supply maximum

+27 V dc (negative earth)

+19.5 to +30 V dc

204A (at nominal voltage)

-48 v dc (Positive earth) 120/240 V ac (50 to 60 Hz)

-39 to ±72 V dc 99A (at nominal voltage) 88 to 270 V

45A (at nominal voltage)

-48v

Power  Supply Units

Power Supply Units  All three unit types support the same PSU  Alarms:  O/P over/under voltage.  I/P under voltage.  Over temperature.  Internal Fan failure.

Circuit Breaker Card (CBC)

6x

CCB for  CTU2

2x Push Button HIISC 2x Push Button SURF2 1x Tx RF Blocks 1x FAN tr ays

H11SC Front Panel States LEDs ± GREEN (normal operation) RED (Fault).

Reset Buttons CPU ± is a Soft Reset (Reset Controllers Main Processors. Software remains in RAM). FULL ± is a Hard reset. Removes software from memory.

Status LEDs

Reset Buttons

 NIU Ethernet Port

Compact Flash Slot

TTY MMI

CAL Port

Synch/NIU TTY PORT

Compact Flash Card slot ± contains 32Mb of memory. TTY MMI ± connection for 9 pin D type connector. CAL PORT ± Calibrates the Sync Block. The 8K Reference is used in GCLK calibration. The NIU Ethernet and SYNC/NIU TTY Port are for  factory use only.

HIISC

Functional Diagr am Site Controller Card

 NIU Block  Control via NIU Port 0, TS 0

NIU Control Processor

NIU Port 0 & Port 1 2

8

Line Interface Module

8

Line Interface Unit & Framers

TSI (SMURF) 8

2 8

Control Interface Internal 2048 kbps TDM interface with 32 timeslots. External E1 or T1 interface. Internal E1 or T1 interface.

Frequency Reference

24?

Radio(s)

Site Control Processor

Horizon II macro HSCII Block diagram Uplink

RSL Inser tion 16Kbs only E1

Inputs Curr ent x 8 Futur e x6

SMuRF Sync, Mux, uBCU, Replacement, FPGA LAPD Encode/Decode Layer  2 pr ocessing

CTU2 dual carr ier  unit single/dual carr ier  oper ation single f re   quency band BTP function of the BTS r uns site softwar e and call pr ocessing functions Second H2SC configur ed for  r edundancy

Thr ee

on board XMUX functions FMUX equivalent

Field Pr ogr ammable Gate Arr ay (FPGA) similar  function as the ASIC 64Kb switch incapable of sub-r ate switching

Cabinet Expansion  The Cabinet can be expanded up to 3x Horizon II macro Cabinets  Can be expanded with Horizonmacro and Mcell6 cabinet combinations.  Expansion Kit ± 1x XMUX card 1x Input/Output (I/O) card 1x 2m Fibre Optic cable

Cabinet Components  ² Inter  connections CTUII radio(s) H-II Radio

Horizon II Cabinet

H-II Expansion Cabinet

TDM

HIISC NBSC

 Alarm

XMUX

Site IO

XMUX

Site IO Horizonmacro Cabinet FMUX FMUX

 Alarm

Holdup Unit (AC Supply only)

Cabinet Temperature Control  Operating range -5 C to +45 C  Three Internal FAN units ± speed controlled  3x Cabinet Temperature Sensors ± » 1x (70 C) for cabinet alarm » 2x (85 C) to shutdown the cabinet, reset at 55 C.

Horizon II Site Controller (HIISC)  Performs functions of: MCUF, NIU, FMUX and BPSM in Horizon macro cabinet.  Cabinet supports 2x HIISC cards Master/Slave ( redundancy)  Compact Flash card (32 Mbyte memory)

 XMUX Location

XMUX in slot 0

XMUX Functional Diagram

Input/Output (I/O) card

Connects up to 3 x extr a cabinets Fibr e optic connections

GPS connector  (not suppoSite ) r tedExpansion Board

SITE I/O PANEL CONFIGURATION

GPS

connection

Fibre connections IN/OUT

Expansion configurations E1

Horizon II macro (6xCTU2)

X M U X

Horizon II macro (6xCTU2)

Two Horizon II macro¶s expanded.

E1

Horizon II macro (6xCTU2)

X M U X

Horizon II macro (6xCTU2)

Horizon II macro, expanded to a Horizon II

macro

and a Horizonmacro.

F M U X

Horizonmacro (6 x CTU)

Expansion configuration (cont) E1

Horizon II macro (6xCTU2)

X M U X

F M U X

Horizonmacro (6 x CTU)

F M U X

F M U X

Horizonmacro (6 x CTU)

F M U X

Horizonmacro (6 x CTU)

Horizonmacro controlling a Horizon II macro and another Horizonmacro.

E1

Horizon II (6xCTU2)

macro

X M U X

F M U X

M-Cell 6 (6 x TCU)

F M U X

M-Cell 6 controlling a Horizon II macro and a Horizonmacro.

Cabinet Alarm Module  Collects All internal Cabinet Alarms  Controls the PIX connection (customer  external alarms)  Process Antenna VSWR alarms Note: NOT backwards compatible to the Horizonmacro cabinet

 Alarm Board Mains

Door 1

Only 4x active Displays

LVD

Fan 0

Fan 1 & 2

 ALL LEDs are GREEN when the equipment is OK

RED when equipment is faulty

Compact Transceiver Unit (CTU2) CTU2

Compact Transceiver Unit ( CTU2) Single Density Mode ± High Power 63W (48dbm) 900MHz 50W (47dbm) 1800MHz Normal Power  20W (43dbm) 900MHz 16W (42dbm) 1800MHz

Double Density Mode ±Normal Power 20W (43dbm) 900MHz 16W (42dbm) 1800MHZ

CTU2 backwards compatibility Compact Transceiver Unit 2 (CTU2) Backwards compatible with Horizon macro Cabinet (with minor limitations).  Requires the correct software ( GSR6 HII)  Can NOT support the CCB controller function  O/P power reduced when in Double Density Mode  BBH not supported

CTU2 Receiver Sensitivity Performance EGSM900

     

-110.5 dBm, static channel -107.5 dBm, faded channel DCS1800 -111.5 dBm, static channel -108.5 dBm, faded channel

Compact

Tr ansceiver  Unit

2 (CTU2)

TRANSMIT RF OUT

TTY INTERFACE

Radio Status LED

Tx Status A LED

TEST INTERFACE

VCAT INTERFACE

Tx Status B LED

CTU2 to SURF2 interconnection

Second SURF2 not suppo r ted (4 br anch diver sity)

Basic Block Diagram ± TX (PA only)

Fwd Power Detect A

PA Branch 1 Branch A VVA

Rev Power Detect

PA Mode Switches

PA Pad Switches

PA Temp.

Phase Adjust

* 2nd Temp.

Branch B VVA PA Branch 2

Fwd Power Detect B

RF Equipment RF Equipment

Sectorized Universal Receiver Front end (SURF2)

SURF2 Functional diagram 3x Ant por ts with 2x Br anches each

Expansion

VSWR Monitoring Antenna To SURF

VSWR  Monitor 

Rx Filter 

Tx Filter 



Tx Block 

The Antenna VSWR monitoring

function is used to detect faults in antennas or antenna path connections. Tx

CTU2 Signal

Alarm Board

Cabinet TX Blocks Transmitter RF Blocks New RF Blocks:  DUP - Duplexer   HCU - Hybrid Combiner Unit  DHU - Dual Hybrid Combiner Unit Connecting Panels  Blanking Plate  Feedthrough plate

Tr ansmitter  Blocks

Blanking Plate Used

to contr ol the Air  flow wit hin the cabinet

Feedthrough Plate

Duplexer- DUP Connects a single CTU2 to a single Tx/Rx Antenna. Typical 1db loss.

DUP Block diagr am

Hybrid Combiner Unit - HCU

HCU Used to connect 2x CTU2 via a Hybrid Typical 3-4db loss

HCU- Block diagram

Typical

3-4db loss

Dual Hybrid Combiner Unit - DHU Typical 6 db

loss

Dual Hybrid Combiner Unit - DHU

6dbs typical loss

Software and Database Requirements

 New Cabinet Type - horizonmacro2 (24) - horizonmacro2_ext (25)  Equipping the DRI Density is required Single or Double (called the associated DRI)

 Setting CTU2 to High Power (max_tx_bts= -1)

Equipping

a DRI  ² Single Density

MMI Command : equip DRI Enter the 1st and 2nd DRI id: 0 0 Enter the density of this DRI: SINGLE Enter the cabinet identifier: 0 Enter the type of connection to the BTP: master  Enter the port to which the TCU is connected: 0 Enter the 1st and 2nd RTF id: Enter the GSM cell ID where the DRI appears: 1 2 3 9 9 4 21 Enter antenna select number for this cell: 1 Does this DRI use tuneable combining: no Enter diversity flag for this DRI: 1 Enter the fm cell type: 4

New line within the command

Equipping

a DRI  ² Double Density

MMI Command: equip DRI Enter the 1st and 2nd DRI id: 0 0 Enter the density of this DRI: DOUBLE Enter the 2nd DRI id of the associated DRI: 1 Enter the cabinet identifier: 0 Enter the type of connection to the BTP: master  Enter the port to which the TCU is connected: 0 Enter the 1st and 2nd RTF id: Enter the GSM cell ID where the DRI appears: 1 2 3 9 9 4 64 Enter antenna select number for this cell: 1 Enter diversity flag for this DRI: 1 Enter the fm cell type: 4

 Associated DRI Number