remote radio systems & ftta the future for mobile ... ftta compressed.pdf · 900 mhz 1800 mhz...

Remote Radio Systems & FTTA

The future for mobile communications

cabling infrastructure …

Excellence in Connectivity Solutions

What are Remote Radio Systems?

Conventional System Remote Radio System

• Use of corrugated coax cables

• 50% feeder losses• Distance max. 100m• Usage decreasing

• RRH on tower • Fiber optic and 48V

power feeders• Distance up to 20km• Usage increasing,

becomes dominating solution

2


Reduction of Operating Costs (OPEX)

• No RF feeder losses, less cooling

• Remote radio systems reduce energy consumption by up to 50%, less site power equipment including batteries required

• Network costs

–⅓ rent, technical maintenance, data backhaul

–⅔ energy consumption

• Network costs account, on average, for 30% of total operating costs (OPEX).

Remote Radio System

3


Reduction of Installation Costs (CAPEX)

• Longer distances and more innovative network architectures

• Easier site acquisition and lower rental costs, no traditional telecom room required

• No crane required (no BTS or container on roof)

• No high-power provisioning

• Faster network rollouts

Remote Radio System

4


Structural Implications

6 Sector Install (100m Tower) RF

• Coaxial Cable (1 5/8” Foam) = (1.6 Kg/m X 12) X 100

• Total = 1,920 Kg• Does not include TMA or Earthing

6 Sector Install (100m Tower) RRH• Optical Cable (12F) – 6 Kg • FTTA Box – 3 Kg• RRHs (6) – 120 Kg• Power Cable – 180 Kg• Total = 309 Kg

5

Excellence in Connectivity Solutions 6

Global mobile trends 2013–2018


Installation Shift

De-bundling

Discrete Solution«OEM turnkey

Solution»

“Scale-able”

Supports Multi Vendor Installs

Future Proof

Easier to Deploy

Trends

7

Reduces Costs / Field

Failures


How operators cope with mobile data explosion?

#1 IMPROVE MACRO LAYER

#2 DENSIFY MACRO LAYER

#3 ADD SMALL-CELL LAYER

8


How operators cope with mobile data explosion?

#1 IMPROVE MACRO LAYER

#2 DENSIFY MACRO LAYER

9


2100 MHz

Typical Macro Cell Site Scenario.....

800 MHz 2600MHz900 MHz 1800 MHz

2G/GSM 2G/GSM 3G/UMTS

2100 MHz

10


Frequency refarming

800 MHz 2600MHz900 MHz

2G/GSM 2G/3G 3G/UMTS

2100 MHz1800 MHz

11


Frequency refarming (2)

800 MHz 2600MHz

2G/3G 2G/LTE 3G/UMTS

2100 MHz1800 MHz900 MHz

12


Frequency auction – LTE in new band

2600MHz

2G/3G 2G/4G 3G/UMTS

2100 MHz1800 MHz900 MHz

4G/LTE

800 MHz

13


LTE capacity enhancement

2G/3G 2G/4G 3G/UMTS

2100 MHz1800 MHz900 MHz

4G/LTE

800 MHz 2600MHz

4G/LTE

14


120° sectors to 60° sectors

2G/3G 2G/LTE adv 3G/UMTS

2100 MHz1800 MHz900 MHz

4G/LTE

800 MHz 2600MHz

4G/LTE

.

.

15

• Tower Loading Issues

• Scalable / Future-Proof

• Time to Market / Deploy

• Total Cost of Ownership


RRH Installation System Growth Drivers......

More FTTA, PTTA, HTTA

Opportunity per Site

Low inductance Cable

Easier / Quicker to install solutions


Singlemode vs Multimode

17

• Singlemode

• Given the data rates already shown the push is clearly towards Singlemode

• Bend insensitive SM fibre now much closer delta to MM fibre cost

• Multimode

• Distance limitations for higher data rates .... OM2 ? OM3 ? OM4 ?

• OEM’s pushing Operators to take turnkey Remote Radio systems using MM including ‘their’ MM SFP’s – or risk voiding the warranties


New Trends

• More and more systems deployed• users want better coverage� More traffic

• Smaller cells

• More frequency bands

• Revenue per end-user is dropping� Commodity Products

� Cost pressure on system hardware.

• Small cell concept• Many small BTS for local coverage.


New Requirements

• Space• Equipment size

• Connector footprint

• Number of connectors increases

• EMI, PIM

• Maintenace and Service• Same look and feel

• Safe

• Simple/ One handed

� TOTAL COST OF OWNERSHIP (for Mobile Operator)

RRH InstallationScenarios


Many Vendors – Many Interfaces –Different Cable OD’s

RRH FO Connectivity (The OEM’s)

21

Connectorised

MM or SM

Different Breakout lengths

7 / 5.5 / 4.8mm OD typ.


Discrete Cables - Fiber

• Avaialble to all

OEM stds

• Connectorised

• LC to LC

• With or Without

Glands/Boots

• PUR / LSFH Cable

(UL1666)

• 7.0, 5.5 & 4.8mm

OD

• Temp.range -40 °°°° to

75 / 85°°°°C

• Animal bite options

available

22


Discrete Cables - Power

23

2 core shielded Power Cable

•LSFHTM Jacket Material

•Stranded Copper

• 2 x 4 mm2

• 2 x 6 mm2

• 2 x 10 mm2

• 2 x 16 mm2

Cable Clamps

•Combined for Fiber and Power cables


Discrete Hybrid cables

24

Single or Dual fibre pair


Multi-fibre riser + Box

RRH Jumper Cables

•Pre-terminated assemblies

•Changeable as connectivity changes

•Reduces field breakage costs

FTTA Box

•LC / MTP patch connections

•Easy installation

•Easy upgrade

•Scalable up to 12 RRH‘s

Riser assembly

•MTP option, pre-terminated, up to 24 fibers

•Pulling and protection tube

•Quick installation, plug and play

25


Multi-fibre riser + box

26

LC-HQ uniboot

LC-HQ uniboot

for 6 or 12 RRH

FTTA box 6 RRH

FTTA box 12 RRH

LC duplex

to RRH Connectivity


Multi-fibre boxless

27

RRH Jumpers

•Push-pull plug to RRH Interface

•Reduces on-site Installation time / failures

•Easy swap out / Upgrade of RRH

Multi-fibre riser

• Only one fiber riser for up

to 12 RRH

• No Mast Mount boxes

• Reduced real estate

• Push-pull extension

terminated for multi-vendor

installs

Preferred FTTA solution up to 12 RRH

Cost efficient installation

Short lead timeStock items


Multi-fibre boxless

28

Push-pull plug

to RRH Connectivity

for 6 or 12 RRH

Push-pull extension

LC-HQ uniboot


Multi-power boxless

29

Optional RRH Jumpers

•Connectorised Power jumpers

•Reduces on-site Installation time

Riser

• Only one power cable for

3 & 6 RRH

• No Mast Mount boxes


• Lowest installed cost

• Optional connectorisation


Multi-fibre boxless bulkhead

30

RRH Jumpers

•Push-pull plug to RRH Interface

•Reduces on-site Installation time / failures

•Easy swap out / Upgrade of RRH

Multi-fibre riser

• Only one fiber riser for up

to 12 RRH

• Compact Connectorised

head


• Push-pull extension

terminated for multi-vendor

installs

Pre-connectorised FTTA solution up to 12 RRH

Cost efficient installation

Integrated hoisting fixture

Hybrid Cables


Why Hybrid Cables........

3 Sectors with RF

Corrugated Coax Cables

MLE Hybrid for 3 RRHs

Discrete Cables for 3 RRHs

32


Why Hybrid Cables........

6 ‘Old’ TMO Antennas with RF

Corrugated Coax Cables

3 x 3/6 MLE cables (supplying 3 x 3 Ericsson AIR Antennas -

18 Technologies)

33


Flexible hybrid – Ease of deployment

Flexible Cable Construction

34


Properties

• 1/2 up to 10/24

• 4mm2 up to 25mm2

• 5mm bundled fiber cable (up to 24 fibers)

• Two wires for each RRH.

• Copper tape for screening

• 10mm2 Drain wire for easy grounding in BTS.

• Ripcord between copper foil and jacket.

35

Com

pany

Con

fiden

tial

Current hybrid cables


Boxed hybrid

RRH Jumper Cables

•Pre-terminated assemblies

•Changeable as connectivity changes

•Reduces field breakage costs

HTTA Box

•Easy installation

•Easy upgrade

•Connectorised option

•OVP Capability

MLCH Riser Cable

•6 Pair Power 10, 8 or 6AWG

•MASTERLINE classic up to 24 fibers

•Pulling and protection tube

•LCD or MTP termination

36


Boxless hybrid

MLEH• Only one hybrid cable for 3 to

10 RRH• No Mast Mount boxes • Reduced real estate• Low installed cost• Q-ODC extn terminated fiber

for multi-vendor installs at RRH end

• MASTERLINE classic LC Duplex termination at BBU End

• Power cable connectorised or blunt cut

• Easy overlength management –no special tools required

• No fast wrap / sealing on site required

• Easy to deploy• 3-10 Pair Power 10 or 6mm sq

37


Boxless hybrid – some configurations

only one cable per multi-RRU install

Blunt cut power at Equipment end

Push-pull plug

to RRH Connectivity

38

3/3

6/6 6/6LC-HQ uniboot to

equipment

6/12

9/18Power plug

to RRH Connectivity


Boxless Hybrid bulkhead

39

MLUH• Only one hybrid cable for 3

to 6 RRH• Connectorised Compact

head• Reduced real estate• Low installed cost• Q-ODC extn terminated fiber

for multi-vendor installs at RRH end

• MASTERLINE classic LC Duplex termination at BBU End

• Power connectors • Easy overlength

management – no special tools required

• No fast wrap / sealing on site required

• True Plug and Play Hybrid


Fixing of the FO branches

40


Installation aids –Animation/Video and Instructions

41


Installation aids – Ease of Install

Simple Over-length Management

Standard Grounding Kits

Integrated 6 AWG Drain /

Ground

Integrated, Intuitive Pulling & Clamping Features

Integrated Protection tube / Cabinet entry gland

42


Hybrid Solutions – Globally Installed

43


Hybrid Solutions – Globally Installed

44

Contents

Spanners in theWorks .....


Odd requirementsBird Attack Solutions

46


General

In electromagnetism, inductance is the property of a conductor by which a change in current in the conductor "induces" (creates) a voltage in both the conductor itself (self-inductance) and in any nearby conductors (mutual inductance) Source: Wikipedia.

Problem:

With LTE radios the power is sent as pulses, due to this pulsing effect the RRH induces a self-inductance voltage. This physical effect generates a temporary voltage drop. While the system is running on battery backup, this voltage drop can cause a system failure (insufficient voltage/power supply).

47

Inductance

Current hybrid cables


Current values (conventional cable construction)

• Between 0.5uH/m up to 0.8uH/m

Problem:

• Temporary Drop Voltage while system running on battery backup.

• OEM’s system requirement: L’ ≤ 0.2uH/m.

Solution: Low inductance hybrid power cables

48

Com

pany

Con

fiden

tial

Inductance today


Measurement and comparing

Conditions of measurement: 20 meter cable length, 6mm2, 20°C temperature, Dielectric: XLPE (cross-linked polyethylene), Conductor: copper

10µS/100kHz

Conventional version (separate power wires)

Temporary voltage drop: ~8VSetting time: ~0.17ms

Low inductance hybrid cable (power coaxial wires)

Temporary voltage drop: ~3VSetting time: ~0.03ms

Temporary voltage drop


Some on-site ‘specials’ – normally in foreign climes !

50

Who needs two cable jacks/rollers ?

Why not use a step ladder, a broom and one of the i nstallers ??

Ooooooh it’s getting a bit heavy !!



51

A little bit of Overkill for two antennae !



52

Climbing tower Hong Kong style !


Remote Radio Head systems are a reality

• Offer the Operators the opportunity to increase data rates at ever-reducing cost deltas due to Opex reductions

• Offer the OEMs a new revenue stream with long-term, high value Managed Services deals

• Offer the Installers new opportunities to replace the declining copper feeder work

• Training for new (FO) skills for the riggers

• Next level of integration for ASPs

In Summary

Complimentary Products

53

Thank you

remote radio systems & ftta the future for mobile ... ftta compressed.pdf · 900 mhz 1800 mhz...

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