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© 2013 Agilent Technologies Wireless Communications Moving Forward to LTE-Advanced with Heterogeneous Networks Presented by Jung-ik Suh Wireless Program Manager Electronic Measurement Group Agilent Technologies
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© 2013 Agilent Technologies

Wireless Communications

Moving Forward to LTE-Advanced

with Heterogeneous

Networks

Presented by

Jung-ik Suh

Wireless Program Manager

Electronic Measurement Group

Agilent Technologies

© 2013 Agilent Technologies

Wireless Communications

2 © 2013 Agilent Technologies

Wireless Communications

Goal

HetNet Introduction

HetNet Challenges

HetNet Solutions

2

© 2013 Agilent Technologies

Wireless Communications

3 © 2013 Agilent Technologies

Wireless Communications

Agenda

• Wireless Evolution

• Homogeneous Network vs. Heterogeneous Network

• Heterogeneous Network Elements

• Heterogeneous Network Challenges

• Agilent Solutions to Solve Heterogeneous Challenges

3

© 2013 Agilent Technologies

Wireless Communications

Wireless Evolution

4

© 2013 Agilent Technologies

Wireless Communications

Wireless Evolution 1990 - 2013

IS-136 TDMA

PDC GSM

HSCSD iMode GPRS

WiMAX 2 802.16m

E-GPRS EDGE

W-CDMA FDD & TDD TD-SCDMA

HSDPA/ HSUPA

FDD & TDD

HSPA+ E-HSPA

802.16e Mobile

WiMAXTM

802.11g

802.11a

802.11b

802.16d Fixed

WiMAXTM

802.11n

802.11h

WiBRO

LTE-Advanced Rel 10 & Beyond

LTE FDD & TDD

Rel-8/9

IS-95A cdma

IS-95B cdma

cdma2000 1x RTT

1xEV-DO Release

0 A B

802.11ac 802.11ad

EDGE Evolution

5

© 2013 Agilent Technologies

Wireless Communications

Wireless Evolution 1990 - 2013

IS-136 TDMA

PDC GSM

HSCSD iMode GPRS

WiMAX 2 802.16m

E-GPRS EDGE

W-CDMA FDD & TDD TD-SCDMA

HSDPA/ HSUPA

FDD & TDD

HSPA+ E-HSPA

802.16e Mobile

WiMAXTM

802.11g

802.11a

802.11b

802.16d Fixed

WiMAXTM

802.11n

802.11h

WiBRO

LTE-Advanced Rel 10 & Beyond

LTE FDD & TDD

Rel-8/9

IS-95A cdma

IS-95B cdma

cdma2000 1x RTT

1xEV-DO Release

0 A B

802.11ac 802.11ad

EDGE Evolution

6

All About DATA Rates

With Seamless Connections!

© 2013 Agilent Technologies

Wireless Communications

Wireless Evolution 1990 - 2013

IS-136 TDMA

PDC GSM

HSCSD iMode GPRS

WiMAX 2 802.16m

E-GPRS EDGE

W-CDMA FDD & TDD TD-SCDMA

HSDPA/ HSUPA

FDD & TDD

HSPA+ E-HSPA

802.16e Mobile

WiMAXTM

802.11g

802.11a

802.11b

802.16d Fixed

WiMAXTM

802.11n

802.11h

WiBRO

LTE-Advanced Rel 10 & Beyond

LTE FDD & TDD

Rel-8/9

IS-95A cdma

IS-95B cdma

cdma2000 1x RTT

1xEV-DO Release

0 A B

802.11ac 802.11ad

EDGE Evolution

7

All About DATA Rates

With Seamless Connections!

© 2013 Agilent Technologies

Wireless Communications

8 © 2013 Agilent Technologies

Wireless Communications

Wireless Data Demands From…

8

© 2013 Agilent Technologies

Wireless Communications

9 © 2013 Agilent Technologies

Wireless Communications

Wireless Data Demands From…

9

• Huge Data Traffics on Limited Resources

• x18 Mobile Broadband Data Traffics between ’11 &’16- Cisco

• Unbalanced Data Consumption by Areas and Times

• Huge Investments and Researches to Improve Wireless Data

Communications capacity and coverage but, Demands Growing Much Faster

© 2013 Agilent Technologies

Wireless Communications

10 © 2013 Agilent Technologies

Wireless Communications

• Enhance Existing Wireless Capability

− DC-HSPA, HSPA+

− Optimize Base Station capability

• Move to Faster, More Spectrum Efficient Technologies

− LTE, LTE-Advanced, WiMAX

− 802.11ac

• Move Networks Closer to User Equipment

− Heterogeneous Networks

− WLAN leverage

How to Improve

Wireless Data Communications?

10

© 2013 Agilent Technologies

Wireless Communications

11 © 2013 Agilent Technologies

Wireless Communications

Rel-5/6 Rel-7 Rel- 8 Rel-9 Rel-10

and Beyond

UMTS- HSPA / HSPA+ Evolution

WCDMA

WCDMA

14.4 Mbps

21/28 Mbps 42 Mbps

84 Mbps

168 Mbps 64 QAM/MIMO

DC-HSDPA

DC-HSDPA &

MIMO

MC-HSDPA

11

HSDPA / HSUPA HSPA+ HSPA+ HSPA+

HSPA / HSPA+ Evolution

• 482 Commercial Networks including 254 HSPA+ Networks

• 3,847 Devices- Smartphone, Tablet, PC, USB Dongle

- GSA Nov. 2012

HSPA+

© 2013 Agilent Technologies

Wireless Communications

12 © 2013 Agilent Technologies

Wireless Communications

0

Rel-5/6 Rel-7 Rel- 8 Rel-9 Rel-10

and Beyond

WCDMA

WCDMA

326 Mbps

12

UMTS- LTE / LTE-Advanced Evolution

LTE -Advanced LTE

LTE

14.4 Mbps

21/28 Mbps 42 Mbps

84 Mbps

168 Mbps

20MHz BW

OFDMA

64QAM

4x4 MIMO

1,000 Mbps

100MHz BW

with Carrier

Aggregation

LTE / LTE-Advanced Evolution

• 113 Commercial Networks

• 560 Devices- Smartphone,

Router, USB Dongle, Tablet

- GSA, Nov. 2012

© 2013 Agilent Technologies

Wireless Communications

UMTS Long Term Evolution

1999

2013

Release Stage 3: Core

specs complete

Main feature of Release

Rel-99 March 2000 UMTS 3.84 Mcps (W-CDMA FDD & TDD)

Rel-4 March 2001 1.28 Mcps TDD (aka TD-SCDMA)

Rel-5 June 2002 HSDPA

Rel-6 March 2005 HSUPA (E-DCH)

Rel-7 Dec 2007 HSPA+ (64QAM DL, MIMO, 16QAM UL). LTE & SAE

Feasibility Study, Edge Evolution

Rel-8 Dec 2008 LTE Work item – OFDMA air interface

SAE Work item – New IP core network

UMTS Femtocells, Dual Carrier HSDPA

Rel-9 Dec 2009 Multi-standard Radio (MSR), Dual Carrier HSUPA,

Dual Band HSDPA, SON, LTE Femtocells (HeNB)

LTE-Advanced feasibility study, MBSFN

Rel-10 March 2011 LTE-Advanced (4G) work item, CoMP Study

Four carrier HSDPA, eICIC

Rel-11 Sept 2012 CoMP, eDL MIMO, eCA, MIMO OTA, HSUPA TxD &

64QAM MIMO, HSDPA 8C & 4x4 MIMO, MB MSR

Rel-12 March 2013 stage 1 New carrier type, LTE-Direct, Active Antenna Systems

© 2012 Agilent Technologies

13

© 2013 Agilent Technologies

Wireless Communications

Homogeneous Network vs.

Heterogeneous Network

14

© 2013 Agilent Technologies

Wireless Communications

15 © 2013 Agilent Technologies

Wireless Communications

Traditional Homogeneous Networks

15

© 2013 Agilent Technologies

Wireless Communications

16 © 2013 Agilent Technologies

Wireless Communications

Traditional Homogeneous Networks

16

© 2013 Agilent Technologies

Wireless Communications

17 © 2013 Agilent Technologies

Wireless Communications

Traditional Homogeneous Networks

17

© 2013 Agilent Technologies

Wireless Communications

18 © 2013 Agilent Technologies

Wireless Communications

Traditional Homogeneous Networks

Core Network

18

© 2013 Agilent Technologies

Wireless Communications

19 © 2013 Agilent Technologies

Wireless Communications

Traditional Homogeneous Networks

Core Network

19

© 2013 Agilent Technologies

Wireless Communications

20 © 2013 Agilent Technologies

Wireless Communications

Traditional Homogeneous Networks

Core Network

20

© 2013 Agilent Technologies

Wireless Communications

21 © 2013 Agilent Technologies

Wireless Communications

Traditional Homogeneous Networks

Core Network

21

© 2013 Agilent Technologies

Wireless Communications

22 © 2013 Agilent Technologies

Wireless Communications

Traditional Homogeneous Networks

• One Macrocell (Base Station) connects all mobile devices

operating under its coverage

• Locations and configuration are carefully chosen through

deployment planning to maximize the coverage and minimize the

interferences among other Macrocells

• Have very similar capability, data rates, QoS and serving UE

number regardless the data traffics

• Not a good solution for unbalanced data traffics from UEs

(busy office area, stadium, university vs. rural areas)

• High cost of equipment as well as installation and maintenance

22

© 2013 Agilent Technologies

Wireless Communications

23 © 2013 Agilent Technologies

Wireless Communications

Traditional Homogeneous Networks

Core Network

23

© 2013 Agilent Technologies

Wireless Communications

24 © 2013 Agilent Technologies

Wireless Communications

Heterogeneous Networks

Internet

Core Network

Femto

Pico/Micro

Pico/Micro

Pico/Micro

Macro

Relay

RRH/DAS

Fiber

Optic

Wireless

24

© 2013 Agilent Technologies

Wireless Communications

25 © 2013 Agilent Technologies

Wireless Communications

Heterogeneous Networks

• Expand wireless service coverage and improve capacity

• Various of wireless access technologies and cell types

• Combination of Macrocells, RRH, DAS, relay and Small Cells

- WLAN is also considered

(Hot Spot 2.0 from Wi-Fi Alliance, I-WLAN & SaMOG from 3GPP)

• Faster deployment with flexible installation location

• More interference challenges

• Provide different capability, data rates, QoS to maximize ROI

depending on data demands on the specific areas

• Lower cost of small cells, installation as well as maintenance

• Lower power consumptions from Cells and UEs - Green Networks

25

© 2013 Agilent Technologies

Wireless Communications

26 © 2013 Agilent Technologies

Wireless Communications

Quick Comparison - Homogeneous vs Heterogeneous Networks

Homogeneous Network Heterogeneous Network

Cell size One big and same size

Base Station Various with smaller nodes

Coverage Broader (25-40km) Narrower (50m to 2km)

Deployment

Ownership

Carefully planned and

configured by wireless

operators

Small Cells- less planned,

installed by wireless operators

as well as end-users

Interference Well managed from

deployment plan

Complicated due to various

overlaps, types of backhauls

and managing ownership

Capacity Flexibility Hardly flexible More flexible

Cost of equipment,

installation and

maintenance

Higher Small Cells- Lower

26

© 2013 Agilent Technologies

Wireless Communications

27 © 2013 Agilent Technologies

Wireless Communications

Why Moving to Heterogeneous Network?

• Difficult to Install Base Station in Data Traffic Dense Areas

- Challenge to find right property to install new Base Stations

• Limitation on Advanced Radio Technologies

- Face technical / realistic challenges to keep improving wireless performance

- Limited efficiency and performance at cell edge due to co-channel interference- require high SINR and power

• Need to Reduce Cost (CAPEX, OPEX)

- Reduce costs for installation as well as maintenance

• Fast and Flexible Deployment

- Faster Small Cell deployment, even with self installation by end-user

• Less Power Consumptions- Green Network

- Both cells and UEs can reduce the power consumption

27

© 2013 Agilent Technologies

Wireless Communications

Heterogeneous Network Elements

28

© 2013 Agilent Technologies

Wireless Communications

29 © 2013 Agilent Technologies

Wireless Communications

Heterogeneous Networks

Internet

Core Network

Femto

Pico/Micro

Pico/Micro

Pico/Micro

Macro

Relay

RRH/DAS

Fiber

Optic

Wireless

29

© 2013 Agilent Technologies

Wireless Communications

30 © 2013 Agilent Technologies

Wireless Communications

Heterogeneous Network

- Low Power Small Cells

• Overlay under Macrocell coverage to improve service coverage,

spectrum efficiency and network capacity

• Offload Macrocell data load

• Increase capacity flexibility based on data demands on the areas.

• Same or similar QoS as Macrocell under the wireless service

operators’ management with licensed spectrum

• Various types of backhaul

• Complicated interference, handover issues

30

© 2013 Agilent Technologies

Wireless Communications

31 © 2013 Agilent Technologies

Wireless Communications

Compare Different Cell Types

- Not Clearly Defined Yet

Cell

Types Serving UE

Coverage

Area Location Managing Price

Max.

Power Backhaul

Macro + 200 25km-

40km Tower

Service

provider $$$$$ 40W S1,E1, T1

Micro 50-200 Up to 2km

Smaller

tower,

buildings

Service

provider $$$ 2W X2

Pico Up to 64 200-300m

buildings,

poles,

signals,

indoor

Service

provider $$ 250mW X2

Femto Up to 8 Less than

30m

House,

office

Service

Providers

/End-user

CSG

$ 20mW

Internet

with fiber

optic or

DSL

WLAN 5-20 300m House,

office

Service

Providers

/End-user

$

200mW

Internet

with fiber

optic or

DSL

31

© 2013 Agilent Technologies

Wireless Communications

32 © 2013 Agilent Technologies

Wireless Communications

Small Cell Deployments

• First launch by Sprint Wireless in US, Sep 2007

• First enterprise launch by Verizon Wireless in US, Jan 2009

• First LTE Femtocell by SK Telecom in Korea, Jun 2012

• First million deployment by Sprint Wireless in US, Oct 2012

• First dual-mode 3G/LTE by NTT DoCoMO in Japan, Dec 2012

• Consumer Femtocell deployments: 26 including Vodafone UK, AT&T,

Cosmote

• Enterprise Femtocell deployments: 6 including T-Mobil UK, Network

Norway, Orange France

• Small cell deployment forecasts

32

Data source: Small Cell Forum Dec. 2012

www.smallcellforum.org

© 2013 Agilent Technologies

Wireless Communications

33 © 2013 Agilent Technologies

Wireless Communications

Heterogeneous Networks

Internet

Core Network

Femto

Pico/Micro

Pico/Micro

Pico/Micro

Macro

Relay

RRH/DAS

Fiber

Optic

Wireless

33

© 2013 Agilent Technologies

Wireless Communications

34 © 2013 Agilent Technologies

Wireless Communications

Heterogeneous Network

- Remote Radio Heads / Distributed Antenna System

• Physically expand Base Station capability to desired places

• Retransmit the Base Station signals linked with the fiber optic

cables

• Improve only coverage; not improve or add network capability

• Much more cost effective than Base Station; slightly more

expensive and more power consumption than Small cells or WLAN

Fiber Optic cable

34

© 2013 Agilent Technologies

Wireless Communications

35 © 2013 Agilent Technologies

Wireless Communications

Heterogeneous Networks

Internet

Core Network

Femto

Pico/Micro

Pico/Micro

Pico/Micro

Macro

Relay

RRH/DAS

Fiber

Optic

Wireless

35

© 2013 Agilent Technologies

Wireless Communications

Heterogeneous Network Challenges

36

© 2013 Agilent Technologies

Wireless Communications

37 © 2013 Agilent Technologies

Wireless Communications

Interference

• Overlapped cells can cause significant interference issue

(Ex. Macrocell vs Picocell, Macrocell vs Femtocell)

• More complicated interference manage than Homogeneous

Network with various cell-types, radio technologies and backhauls

• Interferences reduce the Heterogeneous Networks performance

37

© 2013 Agilent Technologies

Wireless Communications

38 © 2013 Agilent Technologies

Wireless Communications

Interference - Continued

• 3GPP Rel. 8 and 9

- Inter-Cell Interference Coordination (ICIC)

o Frequency domain

o Power control

o ICIC manages only data channels- No improving with the HetNet

interference issue

• 3GPP Rel. 10

- enhanced-Inter-Cell Interference Coordination (eICIC)

o Add Time domain with Almost Blank Sub-frames (ABS) to reduce the

interference issues

o Cross-Carrier Scheduling with Carrier Aggregation

• 3GPP Rel.11

- Further enhanced-Inter-Cell Interference Coordination (FeICIC) is under

developed

38

© 2013 Agilent Technologies

Wireless Communications

39 © 2013 Agilent Technologies

Wireless Communications

Interference - Continued

• 3GPP Rel. 10

- enhanced-Inter-Cell Interference Coordination (eICIC)

CRE

Pico-Cell Range Expansion (CRE)

© 2013 Agilent Technologies

Wireless Communications

40 © 2013 Agilent Technologies

Wireless Communications

Interference - Continued

• 3GPP Rel. 10

- enhanced-Inter-Cell Interference Coordination (eICIC)

o Add Time domain with Almost Blank Sub-frames (ABS) /

Lightly Loaded CCH transmission Sub-frame (LLCS) to reduce

the interference issues

ABS

ABS

eICIC with ABS / LLCS

© 2013 Agilent Technologies

Wireless Communications

41 © 2013 Agilent Technologies

Wireless Communications

Interference - Continued

• 3GPP Rel. 10

- enhanced-Inter-Cell Interference Coordination (eICIC)

o Cross-Carrier Scheduling with Carrier Aggregation

41

CRE

© 2013 Agilent Technologies

Wireless Communications

42 © 2013 Agilent Technologies

Wireless Communications

Interference - Continued

Resources can be assigned to a user equipment (UE) in two ways:

Same-carrier scheduling

Cross-carrier scheduling

• 3GPP Rel. 10

- enhanced-Inter-Cell Interference Coordination (eICIC)

o Cross-Carrier Scheduling with Carrier Aggregation

© 2013 Agilent Technologies

Wireless Communications

43 © 2013 Agilent Technologies

Wireless Communications

PDCCH (Physical Downlink Control Channel) carries the uplink and downlink resource grant

PDCCH

PDSCH

Subframe

CC#1

PDCCH

PDSCH PDSCH

PDCCH

CC#2 CC#3

Interference - Continued

Same Carrier Scheduling

- Separate PDCCH for each CC

- Resource scheduling (Downlink assignments / Uplink grants) are on the same carrier

- Reusing 3GPP Release 8 / 9 PDCCH structure and DCI formats for backward compatibility

- Each component carrier can be analyzed individually

• 3GPP Rel. 10

- enhanced-Inter-Cell Interference Coordination (eICIC)

o Cross-Carrier Scheduling with Carrier Aggregation

© 2013 Agilent Technologies

Wireless Communications

44 © 2013 Agilent Technologies

Wireless Communications

PDCCH PDCCH

PDCCH

PDSCH

Subframe

CC#1

PDSCH PDSCH

CC#2 CC#3

Interference - Continued

Primary Cell (PCell) Secondary Cells (SCell)

3-bit CIF

included in

DCI

Cross Carrier Scheduling

- Common PDCCH for multiple CCs

- Resource scheduling (Downlink assignments / Uplink grants) are NOT on the same carrier

- New Carrier Indicator Field (CIF) in DCI

- Analysis of one carrier depends on another carrier

• 3GPP Rel. 10

- enhanced-Inter-Cell Interference Coordination (eICIC)

o Cross-Carrier Scheduling with Carrier Aggregation

© 2013 Agilent Technologies

Wireless Communications

45 © 2013 Agilent Technologies

Wireless Communications

Interference - Continued

• Manage control channel interference for PDCCH.

• Ex.CC1 of Macrocell would cause high interference to CC1 of Picocell, therefore

Picocell uses CC2 for PDCCH messages to schedule PDSCH transmission on CC1

• Macro cell uses CC1 to schedule PDSCH transmission on both CC1 and CC2

PD

CC

H

PDSCH

PDSCH scheduled by

PDCCH from CC1

Macrocell

PD

CC

H

PDSCH

PDSCH scheduled by

PDCCH from CC2

Picocell

CC1

CC2

CC1

CC2

CC1-

Marco

CC2-

Macro CC1-

Pico CC2-

Pico

• 3GPP Rel. 10

- enhanced-Inter-Cell Interference Coordination (eICIC)

o Cross-Carrier Scheduling with Carrier Aggregation

© 2013 Agilent Technologies

Wireless Communications

46 © 2013 Agilent Technologies

Wireless Communications

Heterogeneous Network Challenges

• Self Organization Network

- Cell deployments with minimized service providers’ initial management

- Self-configuration, Self-healing, and Self-optimization

• Handover within different types of cell having different backhauls

- Handover among large number and various types of Macrocell and

small cells

• Security

- Hardware security

- Network security

46

© 2013 Agilent Technologies

Wireless Communications

Agilent Solutions for

the Heterogeneous Network Challenges

47

© 2013 Agilent Technologies

Wireless Communications

48 © 2013 Agilent Technologies

Wireless Communications

• Cross Carrier Scheduling with Carrier Aggregation

- Analyze the multiple transmit and receive chains simultaneously

89600 VSA Software

Inter-band and intra-band carrier

aggregation support for both uplink and

downlink, FDD and TDD

Hardware: X-Series Signal Analyzers or

N7109A Multi-Channel Signal Analyzer

Two component carriers at

800 MHz

One component

carrier at 2100 MHz

Agilent 89600 VSA SW and X-Series Signal Analyzer

solve the interference challenges

Interferences Challenges

48

© 2013 Agilent Technologies

Wireless Communications

49 © 2013 Agilent Technologies

Wireless Communications

Interferences Challenges

• Analyze The Signals Having Different Bandwidths

Agilent 89600 VSA SW and X-Series Signal Analyzer

solve the interference challenges

Challenge:

Mask test on

bursted WLAN

signal, 20 MHz

Wide.

Simultaneously

check level of

bursted spur, but

signal is below the

broadband noise

floor.

Solution:

Meas01 mask test

uses 140 MHz

span, 1 MHz RBW.

Spur at 2.46 GHz

is not visible.

Meas02 at 48 MHz

offset uses13 MHz

span and 3 kHz

RBW. Noise floor

is 25 dB lower.

49

© 2013 Agilent Technologies

Wireless Communications

50 © 2013 Agilent Technologies

Wireless Communications

Interferences Challenges

• Analyze The Signals Located Far Away

Agilent 89600 VSA SW and X-Series Signal Analyzer

solve the interference challenges

DUT

LTE

WLAN

LTE WLAN ~650 MHz

Trig.

50

© 2013 Agilent Technologies

Wireless Communications

51 © 2013 Agilent Technologies

Wireless Communications

Interferences Challenges

• Verify Various Radio Signals At The Same Time

Agilent 89600 VSA SW and X-Series Signal Analyzer

solve the interference challenges

TX

GSM

WCDMA

LTE

S

GSM WCDMA LTE

51

© 2013 Agilent Technologies

Wireless Communications

52 © 2013 Agilent Technologies

Wireless Communications

Interferences Challenges

• System Level Design and Simulation

- Multiple signal, multiple parameters for various environments change

Agilent SystemVue Design & Simulation Cockpit

solve your early design challenges

52

LTE1: Fc 1e9+2.5e6, BW 5e6, SR 15.36e6

LTE2: Fc 1e9+7.5e6, BW 5e6, SR 15.36e6

WCDMA1: Fc 1e9-2.6e6, BW 5e6, SR 30.72e6

WCDMA2: Fc 1e9-7.6e6, BW 5e6, SR 30.72e6

GSM1: Fc 1e9-11.6e6, BW 0.6e6, SR 3.25e6

GSM2: Fc 1e9-12.2e6, BW 0.6e6, SR 3.25e6

EDGE1: Fc 1e9+11.6e6, BW 0.6e6, SR 3.25e6

EDGE2: Fc 1e9+12.2e6, BW 0.6e6, SR 3.25e6

Set output sample rate to be multiple

of LTE base sample rate 15.36e6

Compare LTE1 input and output after resampling

Compare WCDMA1 input and output after resampling

Multi-Standard Radio spectrum

2 LTE + 2 WCDMA + 2 GSM + 2EDGE

Compare GSM1 input and output after resampling

Compare EDGE1 input and output after resampling

FcChange

Bandwidth=5e+6Hz [BW_LTE1]

OutputFc=1.003e+9Hz [Fc_LTE1]E1 {EnvFcChange@Data Flow Models}

123

StartStopOption=TimeLTE1_out {Sink@Data Flow Models}

123

StartStopOption=TimeLTE1_in {Sink@Data Flow Models}

T=6.15235e-6s

Unit=TimeT1 {TimeDelay@Data Flow Models}

T=6.15235e-6s

Unit=TimeT2 {TimeDelay@Data Flow Models}

FcChange

Bandwidth=5e+6Hz [BW_WCDMA1]

OutputFc=997.4e+6Hz [Fc_WCDMA1]E2 {EnvFcChange@Data Flow Models}

123

StartStopOption=Time

WCDMA1_out {Sink@Data Flow Models}

123

StartStopOption=Time

WCDMA1_in {Sink@Data Flow Models}

T=6.15235e-6s

Unit=Time

T3 {TimeDelay@Data Flow Models}

FcChange

Bandwidth=600000Hz [BW_GSM1]

OutputFc=988.4e+6Hz [Fc_GSM1]

E3 {EnvFcChange@Data Flow Models}

T=6.15235e-6sUnit=Time

T4 {TimeDelay@Data Flow Models}

FcChange

Bandwidth=600000Hz [BW_EDGE1]OutputFc=1.012e+9Hz [Fc_EDGE1]

E4 {EnvFcChange@Data Flow Models}

123

StartStopOption=Time

EDGE1_in {Sink@Data Flow Models}

123

StartStopOption=Time

EDGE1_out {Sink@Data Flow Models}

123

StartStopOption=Time

GSM1_in {Sink@Data Flow Models}

123

StartStopOption=Time

GSM1_out {Sink@Data Flow Models}

Signal Combination

The order of input signals MSR(1:8)

need to match the order of SampleRate, Fc, and Bandwidth parameters.

Combines----------------2 LTE 2 WCDMA2 GSM2 EDGE

Spectrum Analyzer

ResBW=5e3HzStart=0s

Mode=ResBW

MSR_spec {SpectrumAnalyzerEnv@Data Flow Models}

Amplifier

dBc1out=30dBm

GCType=dBc1

Gain=0GainUnit=dB

A5 {Amplifier@Data Flow Models}

SignalCom biner

out put

com bined

OutputSampleRate=30.72e6

OutputSampleRateOption=User Defined

OutputFc=1e9

Bandwidth=(1x8) [5e+6,5e+6,5e+6,5e+6,60…

Fc=(1x8) [1.003e+9,1.008e+9,997.4e+6,99…SampleRate=(1x8) [15.36e+6,15.36e+6,30.…

S1 {SignalCombiner@Data Flow Models}

Gain = 0dB20

-40 20

Gain = 0dB20

-40 20

Slider 1 : LTE2 power level

Slider 2 : WCDMA1 power level

VSA_89600B_Sink

VSATitle='Simulation outputDisabled: OPEN

V1 {VSA_89600B_Sink@Data Flow Models}

CCDF

Stop=999e-6s [Stop_Time]Start=0s [Start_Time]

C1 {CCDF_Env@Data Flow Models}

Amplifier

Gain=-20GainUnit=dB

A3 {Amplifier@Data Flow Models}

Amplifier

Gain=-20

GainUnit=dB

A4 {Amplifier@Data Flow Models}

Amplifier

Gain=-20

GainUnit=dB

A1 {Amplifier@Data Flow Models}

Amplifier

Gain=-20

GainUnit=dBA2 {Amplifier@Data Flow Models}

RFCarrier=987.8e+6Hz [Fc_GSM2]

Periodic=YESBuiltInFile=GSM_1C_CONT

WaveformFile=Built InGSM2 {ReadSignalStudioFile@Data Flow Models}

RFCarrier=1.012e+9Hz [Fc_EDGE1]Periodic=YES

BuiltInFile=EDGE_1C_BURSTWaveformFile=Built In

EDGE1 {ReadSignalStudioFile@Data Flow Models}

RFCarrier=1.012e+9Hz [Fc_EDGE2]

Periodic=YESBuiltInFile=EDGE_1C_CONT

WaveformFile=Built In

EDGE2 {ReadSignalStudioFile@Data Flow Models}

RFCarrier=988.4e+6Hz [Fc_GSM1]

Periodic=YESBuiltInFile=GSM_1C_BURST

WaveformFile=Built In

GSM1 {ReadSignalStudioFile@Data Flow Models}

WCDMA

FCarrier=997.4e+6 [Fc_WCDMA1]

WCDMA1 {WCDMA}

Spectrum Analyzer

ResBW=5e3HzStart=0s [Start_Time]

Mode=ResBW

EDGE1_spec {SpectrumAnalyzerEnv@Data Flow Models}

Spectrum Analyzer

ResBW=5e3HzStart=0s [Start_Time]

Mode=ResBW

EDGE2_spec {SpectrumAnalyzerEnv@Data Flow Models}

Spectrum Analyzer

ResBW=5e3HzStart=0s

Mode=ResBW

GSM1_spec {SpectrumAnalyzerEnv@Data Flow Models}

Spectrum Analyzer

ResBW=5e3Hz

Start=0s [Start_Time]Mode=ResBW

GSM2_spec {SpectrumAnalyzerEnv@Data Flow Models}

WCDMA

FCarrier=992.4e+6 [Fc_WCDMA2]

WCDMA2 {WCDMA}

LTE

FCarrier=1.003e+9Hz [Fc_LTE1]LTE1 {LTE}

LTE

FCarrier=1.008e+9Hz [Fc_LTE2]

LTE2 {LTE}

Gain=0dB20

Subnetwork2 {GainDB}

Gain=0dB20

Subnetwork1 {GainDB}

© 2013 Agilent Technologies

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53 © 2013 Agilent Technologies

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Manufacturing Challenges

• Femtocell Manufacturing

- Guarantee measurement performance or lower cost

Agilent X-Series Signal Analyzer and Signal Generators

solve manufacturing challenges

53

© 2013 Agilent Technologies

Wireless Communications

Signal

Generators

RDX for

DigRF v4

Systems for RF and

Protocol Conformance

RF Module Development

RF Proto RF Chip/module

Design

Simulation

BTS and Mobile

BB Chipset Development

L1/PHY

FPGA and ASIC

Conformance

RF and BB

Design

Integration

L1/PHY

System

Design

Validation

System Level

RF Testing

BTS

or

Mobile Protocol Development

L2/L3

DigRF v4

Pre-Conformance

Network Deployment

Manufacturing

89600 VSA/WLA For Signal Analyzers, Scopes, LA

SystemVue and ADS

3D EM Simulation

SystemVue (BB)

ADS/GG (RF/A)

Scopes and

Logic Analyzers

Baseband

Generator and

Channel Emulator

Signal Studio

Software

RF Handheld Analyzers

Manufacturing

Test

N7109A Multi-Channel

Signal Analyzer

Battery Drain

Characterization

LTE UE Signalling

and Function Test

RF & Protocol test

Platforms

Signal Analyzers

54

N4010A Wireless

Connectivity Test Set

Power Measurement

Modular

Solutions

Agilent Solutions

© 2013 Agilent Technologies

Wireless Communications

55 © 2013 Agilent Technologies

Wireless Communications

MIMO Challenges

• 8x8 MIMO for LTE-Advanced Networks

- TM7 and TM8 for FDD

- TM9 (up to 8x8 MIMO)

- Support both FDD and TDD

- Support CSI-RS

Agilent 89600 VSA SW, Multi-Channel Signal Analyzer,

X-Series Signal Generators and Signal Studio SW

solve the 8x8 MIMO interference challenges

55

© 2013 Agilent Technologies

Wireless Communications

56 © 2013 Agilent Technologies

Wireless Communications

Summary

HetNet Introduction

HetNet Challenges

HetNet Solutions

56

© 2013 Agilent Technologies

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57 © 2013 Agilent Technologies

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Summary

• Wireless Technologies Keep Moving Forward With…

– Enhance Existing Wireless Capability with DC-HSPA, HSPA+

– Move to Faster, More Spectrum Efficient Technologies with LTE, LTE-Advanced,

WiMAX and 802.11ac

– Move Networks Closer to UEs with Heterogeneous Networks

• Heterogeneous Network Have Great Benefits to Improve

Network Coverage and Capacity with Lower Cost and Faster Deployments

• Also, Has Many Design and Test Challenges including Interference, SON,

and Lower the Production Cost

• Agilent Solves the LTE-Advanced Heterogeneous Networks Challenges

with Broad and Powerful Design and Test solutions

57

© 2013 Agilent Technologies

Wireless Communications

58 © 2013 Agilent Technologies

Wireless Communications

Organization Committee Description/Remark

3GPP RAN WG4/WG5, GERAN 3rd Generation Partnership Project UMTS & LTE

3GPP2-TIA CDMA/CDMA2000

IEEE Institute of Electrical and Electronics Engineers

ETSI Defines UMTS and LTE air interface for

UE/BTS

GCF SG and CAG Global Certification Forum

PTCRB PVG PCS Type Certification Board

TD Forum

Wi-Fi Alliance 60 GHz Technical Task Group

A trade association that promotes Wireless LAN

technology and certifies that products conform

to IEEE 802.11 standards.

WiMAX Forum CWG, TWG, NWG, STEG Certifies and promotes compatibility &

interoperability

Working with Industry Standards Bodies/Forums

Agilent’s measurement expertise helps to influence measurement needs,

set up the standards and test methodologies of…

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© 2013 Agilent Technologies

Wireless Communications

59 © 2013 Agilent Technologies

Wireless Communications

Organization Committee Description

Wireless Gigabit

Alliance

Interoperability Working

Group

Develops specs for audio, video and data

transmission in the 57-66GHz ISM band

WirelessHD

Consortium Body that oversees the WirelessHD specification

CTIA A-GPS Standards, MACSG

(MIMO OTA) Cellular Telecommunications Industry Association

Bluetooth SIG Multi

MIPI PHY, DWG, CWG, DigRF,

LLI, UniPro, TIG, Marketing Mobile Industry Protocol Interface

USB-Implementers

Forum

Organization to promote and support the

Universal Serial Bus

IWPC- International

Wireless Industry

Consortium

Covers wide variety of topics from femtocells to

next generation antenna designs

HDMI High Definition Multimedia Interface

59

Working with Industry Standards

Bodies/Forums

© 2013 Agilent Technologies

Wireless Communications

© 2013 Agilent Technologies

Wireless Communications

THANK YOU!

62

Prepared by Jung-ik Suh

Wireless Marketing Program Manager

Electronic Measurement Group

Agilent Technologies, Inc.

[email protected]

© 2013 Agilent Technologies

Wireless Communications

63 © 2013 Agilent Technologies

Wireless Communications

Appendix

References

- Lightly Loaded CCH transmission Sub-frame (LLCS)- Kyocera

Corporation, Picocell Range Expansion with Interference Mitigation

toward LTE-Advanced Heterogeneous Networks


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