ace rnx channel emulator ace-rnx product introduction...10 • 5g channel model is cost option. this...

ACE RNX Channel Emulator

ACE-RNX

Product Introduction

2

A C E R N X S p e c i f i c a t i o n s

a n d F e a t u r e s

3

• TDD and FDD operation

• 380–6050 MHz frequency range

• 100 MHz bandwidth

• Dynamic range

− RF Input Range +23 dBm(+15 dbCF) to -50 dBm

(@35 dB above noise floor)

− RF Output Range -25 dBm to -120 dBm (0 dBm peak)

• RF fidelity

− Noise floor < -166 dBm/Hz @ -40 dBm output power

− EVM < -40 dB

• Bi-directional operation @ >80 dB circulator isolation

• 4 RF LO’s per ACE-RNX

• 2 kHz max doppler

• 1 msec playback rate

• 1.1 usec insertion delay

ACE RNX – Specifications

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• Up to 1msec bulk delay.

• 0.1 dB resolution input/output attenuation

• Selectable input power tracking w/ 10msec trigger rate

Noise

• AWGN across entire bandwidth

• -101 dBm/Hz to -162 dBm/Hz NPD

• +35 to -30 dB SNR, 0.1 dB resolution

• Noise Filter bandwidth: 23.5, 25, 50, 100 MHz

Channel modeling

• Raleigh, Ricean, Pure Doppler and constant doppler modes

• 24 taps per channel

• Industry-defined standard models − 3GPP/3GPP2 2G/3G/LTE models − HST & Moving propagation models − Geometric Channel Models (IMT-A, SCME) − 5G 3GPP RAN1 3D Channel Models (CDL Models A-E) − 5G 3GPP TDL Channel Models

ACE RNX – Parameter control

5

Unique features

• Internal combiner/splitter for seamless 2x2 CA testbed

cabling

• Cloud based test executive

• LTE synchronous downlink interference

• Graphical test case creation tool

ACE RNX – Unique features

6

• Dimension

− 0.45m (W) x 0.24m (H) x 0.73m (D) (MX)

− Can be mounted into lab rack

• Weight

− 36 kg

• Power Requirements

− Input: 100-240 VAC, 50-60 Hz, Max. 8.0 Amps at 120V,

4.0 Amps at 240V

− Mains supply voltage fluctuations are not to exceed 10

percent of the nominal supply voltage

ACE RNX – Box specifications

7

MIMO and CA working modes

Working Mode MIMO topology System topology support

Uni-directional 2x2 MIMO Up to 8 links

Bi-directional 2x2 MIMO Up to 4 links

Uni-directional 4x4 MIMO Up to 4 links

Bi-directional 4x4 MIMO Up to 2 links

CA 2x2 MIMO Up to 6DL / 2UL

CA 4x4 MIMO Up to 3DL / 1UL

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A C E R N X 5 G C h a n n e l M o d e l

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5G Technology Updates Release 15:

Release 15 for 3GPP Release 15 5G NR NSA standard is enhanced mobile broadband (eMBB) services.

Release 15 will include both the NSA and SA variants of 5G NR.

NSA and SA share common 5G NR physical layer specifications for the air interface

Main focus for the SA standardization is on the upper layers with full user and control plane capability and on

the next-gen core network architecture like network slicing, a more granular QoS model, and a more advanced

security architecture

Release 16

5G NR technologies spans from ultra-reliable low-latency communications (5G NR URLLC), to the utilization of

unlicensed and new spectrum sharing paradigms (5G NR-U and 5G NR-SS), to vehicle communications for

autonomous driving use cases (5G NR C-V2X), to the continued evolution of the 3GPP low power wide area

(LPWA) technologies (NBIOT/eMTC)

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• 5G channel model is cost option. This model pack is a type of GSCM (Ray-based

Geometric Stochastic Channel Model) channel mode.

• GSCM is widely used for beamforming kind of testing, due to it has angle information,

which traditional TDL doesn’t have.

• Follows 3GPP 38.901 for RAN1

– Ray-based Geometric Stochastic Channel Model (GSCM)

– Five different sets of propagation conditions

– For now, we can generate to up 8x4 channels. For bigger topology it will be

updated in further release.

5G Channel Model - CDL

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• Propagation Models from 3GPP TR 38.901

– Ray-based Geometric Stochastic

Channel Model (GSCM)

– Five different sets of propagation

conditions

• CDL models A-E

– Standard RMS delay spreads (RAN1)

• 10, 30, 100, 300, 1000 ns

• Custom also supported

• Supported Array Models

– Planar arrays: NxMxP elements

• N = number of columns

• M = number of elements per column

• Linear polarized elements (P = 1)

• Co-located cross polarized pairs (P =

2)

– 0/90 degree orientation

– +45/–45 degree orientation

– Element responses

• Ideal dipole response

• Log parabolic

(0,0,p)

(1,0,p)

(M-1,0,p)

...

dv

(0,1,p)

(1,1,p)

(M-1,1,p)

...

...

(0,N-1,p)

(1,N-1,p)

(M-1,N-1,p)

...

...

...

...

dH

5G Channel Model - CDL

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5G Channel Modeling GUI – gNodeB Array

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5G Channel Modeling GUI – UE Array

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5G Channel Modeling GUI – Geometric Modeling

Tool w/ Propagation Overview

Copyright© ANRITSU CORPORATION 15

M1TB-1ET18xxxx | CONFIDENTIAL |

5G Channel Model - TDL

• At 3GPP(Nov.2018), 5G TDL Channel Model had been

defined below in TS38.101-4 Appendix B

Combination name Model Maximum Doppler frequency

TDLA30-5 TDLA30 5 Hz


TDLB100-400 TDLB100 400 Hz

TDLC300-100 TDLC300 100 Hz

Combination name Model Maximum Doppler frequency




TDLC60-300 TDLC60 300 Hz

Table B.2.2-2 Channel model parameters for FR2 (mmWave)

Table B.2.2-1 Channel model parameters for FR1 (Sub6G)

Table B.2.1.1-2 TDLA30 (DS = 30 ns)

Tap # Delay [ns] Power [dB] Fading distribution

1 0 -15.5 Rayleigh

2 10 0 Rayleigh

3 15 -5.1 Rayleigh

4 20 -5.1 Rayleigh

5 25 -9.6 Rayleigh

6 50 -8.2 Rayleigh

7 65 -13.1 Rayleigh

8 75 -11.5 Rayleigh

9 105 -11.0 Rayleigh

10 135 -16.2 Rayleigh

11 150 -16.6 Rayleigh

12 290 -26.2 Rayleigh

Table B.2.1.1-3 TDLB100 (DS = 100ns)


1 0 0 Rayleigh

2 10 -2.2 Rayleigh

3 20 -0.6 Rayleigh

4 30 -0.6 Rayleigh

5 35 -0.3 Rayleigh

6 45 -1.2 Rayleigh

7 55 -5.9 Rayleigh

8 120 -2.2 Rayleigh

9 170 -0.8 Rayleigh




Table B.2.1.1-4 TDLC300 (DS = 300 ns)


1 0 -6.9 Rayleigh

2 65 0 Rayleigh

3 70 -7.7 Rayleigh

4 190 -2.5 Rayleigh

5 195 -2.4 Rayleigh

6 200 -9.9 Rayleigh

7 240 -8.0 Rayleigh

8 325 -6.6 Rayleigh

9 520 -7.1 Rayleigh

10 1045 -13.0 Rayleigh

11 1510 -14.2 Rayleigh

12 2595 -16.0 Rayleigh

Table B.2.1.2-3 TDLC60 (DS = 60 ns)


1 0 -7.8 Rayleigh

2 15 -0.3 Rayleigh

3 40 0 Rayleigh

4 50 -8.9 Rayleigh

5 55 -14.5 Rayleigh

6 75 -8.5 Rayleigh

7 80 -10.2 Rayleigh



10 300 -15.2 Rayleigh

11 360 -16.9 Rayleigh

12 520 -19.4 Rayleigh

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5G Sub6G End-to-End Test fading Configuration image

DL 2CC 4x4MIMO 100M/CC(200M/CA), UL 2CC 2x4MIMO 100M/CC(200M/CA),

RNX Bi-directional

All Conducted

Real BTS

(LTE Anchor)

DL: LTE fading

UL: 5G fading

2x2 Bi-directional

5G

DL: 5G Fading

Real BTS

(5G Sub6G)

UL: LTE fading

4x4 Bi-directional

Combiner

Copyright© Azimuth Systems, Inc. 17

RNX can be run with Real BTS, BTS tester, SG

ACE-RNX

Channel Emulator

Real BTS

RF Tester

Signaling Tester

SG

RF Fader can connect with various types of testers, BTS,

and make effective use of your existing facilities.

AP

Connect with various types of facilities


Bi-directional for End-to-End system test

Real BTS

RF Fader can emulate fading both on DL and UL independently.

It is useful for evaluating interoperability and system performance with real base

stations and real terminals.

Of course, Unidirectional is also possible.

ACE-RNX

Channel Emulator

End-to-End system test • Performance(throughput) test • HO test


Multi Technology Fading Model & FTL support

ACE-RNX

Channel Emulator

LTE

EPA,ETU,EVA

(TS36.101/104)

ITU/SCME

W-CDMA

TS.34.121/122

TS25.101/102

GSM

TS05.05, TS45.005

High Speed Train

TS25.101/104,

TS36.101/104

WLAN 11n/ac

TgN (*3)

GMT 3D (*2)

5G 3D CDL-A/E (*2)

(TR38.901) Cdma2000

C.S0010/11/32/33

As a dedicated fading machine, RNX supports

• Various fading model of many communication standards,

• FTL offers to recreate the RF environment from the Field, in the Lab

• CIR offers faster support new channel models imported by offline-generated files

FTL(*2)

(Field to Lab)

CIR

(Channel Impulse

Response)

Butler

*1: Support from R5.0 (end of Mar. CY2019)

*2: Charged option

*3: Planed around H2 CY2019

5G TDLA/B/C

(TS38.101-4)(*1)

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D i r e c t o r 3 Te s t E x e c u t i v e S W

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Director 3 is a cloud based UI

Server

Location 2

…

Client 1 Client 2 Client N

Server

Location 1

…

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Director 3 - Cloud Based Architecture

• No desktop software

- Access with any web browser No need for dedicated PCs

• Access the test bed from anywhere, any time globally Better test

bed and lab space utilization

• Centralized Dashboard:

- View all discovered RNXs

- Run tests/control RNXs

- Reset RNXs

• Test cases and test results stored on database

- Ensures consistency in testing

• Customer server

- No server fees

- No security concerns

Offers more benefits than just traditional VNC

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Director 3 - Cloud Based Architecture

• No desktop software

- Access with any web browser No need for dedicated PCs

• Access the test bed from anywhere, any time globally Better test

bed and lab space utilization

• Centralized Dashboard:

- View all discovered RNXs

- Run tests/control RNXs

- Reset RNXs

• Test cases and test results stored on database

- Ensures consistency in testing

• Customer server

- No server fees

- No security concerns

Offers MUCH more benefits than just traditional VNC

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Director 3 Requirements

• Supported Operating System(64-bit, English)

– Windows 10 Pro

– Windows 10 Enterprise

– Windows 7 Professional

– Windows 7 Enterprise SP1

• NET framework 3.5(Windows10) or NET framework 3.5.1(Windows 7)

• NET framework 4.6.2

• Microsoft AppFabric 1.1

• Microsoft SQL Server Express 2014

• D3 is a webserver. User can access with any web browser. Eg,

http://127.0.0.1

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Testbed Config

All the properties needed

to set up a connection

between the BS and MS in

one screen – Input power,

IPT, Crest factor, power

meters etc.

Graphical method of creating a

testbed and interacting with

corresponding properties

Click on link or a port to access

different types of properties

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Link Builder

User can access

properties for multiple

links, single link

multiple ports or a

single link

User can add as

many core ACE

links or AzPlayer

links

User add as

many links as

their test

requires

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Play Control

Play control

and status

Select previously created Testbed

and test case from link builder or

scenario builder

Mapped links to

the testbed

Click on arrows to

access DL or UL

properties

Access to other sections of

play control

Properties accessed

by clicking on ports,

links or multiple

links together

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• CIR channel is a playback channel model, which can be generated by

our GSCM tool or customer’s Matlab or other programming tool.

• If customer want to import their own channel they need to check file

format. Refer to D3 user guide “Appendix A: Understanding the Format

of ASC Files”

Channel Impulse Response (CIR) Playback

Overview

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Channel Impulse Response (CIR) Playback

• Support for importing ASC files

• Support for fading rates from almost zero to

2000 Hz

• Support for time-varying excess delays

– Glitch-free changes at physically

meaningful rates of delay change (<500

ns per sec, or 540 km/hr)

– Supported on half the number of RNX

delay taps

• Channel samples are generated offline (ie: Mat

Lab) and played back in the emulator

• Allows for faster support of new channel

models

– Customer-generated files can be imported

– Offline model generation requires no new

emulator firmware for new models

• Composed of

– Complex-valued channel amplitudes

– Excess delay values

– …for all excess delays, all MIMO paths, all

time samples

Geometric Modeling Tool

3D

GSCM Engine

Model Specification

CIR Database

File Format Translation /

Import

“Sampled H Matrix”

Director III

Player

...

EthernetFile Playback

User-Supplied CIR Files

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V i r t u a l N e t w o r k E n v i r o n m e n t

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LTE-A HetNet

• LTE‐A uses network densification/HetNet (a network of cells of

different sizes) to enhance system capacity

• One consequence of network densification is increased interference

• LTE-A offers many complex and advanced mechanisms (e.g., ICIC,

eICIC, FeICIC, NAICS, and advanced receivers) to handle this

interference

32

HetNet lab testing

• How to test such function in chipset?

– Macro and micro need to sync up

– Massive amount of cables and infra

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VNE – Industry First Integrated Network Environment

Emulation

Industry’s first Integrated, Advanced Signal Generation Technology

• Embedded Complex Signal Generation Capability

LTE downlink (eNB) in the first release

• Generate and playback LTE downlinks

Emulate Macro cells, Small cells

Configure cell parameters

Add channel conditions

• Integrated LTE receivers for synchronization

Time or frame based synchronization

(Sync) needed to test xICIC, ABS

Eliminates the need for an external sync

Enables interoperability with live infrastructure and any base station

emulator

VNE creates the interfering cells

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Create & Play Signals Dynamically

Design & Generate

Signal • Graphically create technology

specific signals

• Select LTE parameters Bandwidth, Transmission

Modes

FDD

Cyclic prefix, PHICH

CSRS

ABS pattern (standard, custom)

• Apply standard channel

models

• Create signal profiles

Playback

• Dynamically configure 1 or

more signals relative to real

test bed signals Integrated LTE receiver

monitors test bed

Set Timing, power, frequency

• Use as virtual macro/small

cell

• Dynamically update during

playback

35

VNE Specifications

• Interferer types

– FDD LTE downlink

– Synchronized and unsynchronized

• Can synchronize to up to 4 eNodeB’s

• Can synchronize to input signal of

+23 dBm to -50 dBm

– LTE macro cell and small cell

• Interferer numbers

– 12 independent interferers per ACE-

RNX

– 3 interferers per link

• Link level parameters

– -15 to +40 dB proportion (SIR)

– -1 to 1sec delay (100 nsec res)

– -100 to 100 kHz offset (10 Hz res)

• Interferer Controllable Parameters

– Bandwidth

– Cyclic prefix

– PHICH duration

– Number of eNB antennas

– Type of eNB array

– PCI (cell ID)

– PDSCH

• Transmission mode

• Traffic loading

• Rank proportion

• ABS pattern

• CFI value

– Propagation conditions

• Channel, doppler, correlation

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S c e n a r i o B u i l d e r

37

Scenarios in the LTE-A World

• Lets take a LTE-A scenario, with 8 eNBs, each with CA and the device

moving through this environment

• Testing this scenario requires changing:

Power (or path loss)

Noise

Interference

Doppler

Power delay profile

Correlation

Propagation delay

• This has to be done 8 times (for each sector), for every device (across

links) at the desired resolution

• Creating these test scenarios manually is NOT a viable option

38

Scenario Builder

• Scenario Builder is a powerful wizard to create the complex

scenarios needed for LTE-A, HetNet

– Drag, drop and design that allows creation of complex scenarios

– Seamless, automatic computation of RF environment (power, channel

conditions, etc.) for the defined scenario

– Automatic configuration of the RNX test bed to map to the scenario at

hand

39

Scenario Builder Enables Creation of Complex Scenarios

Scenario Builder is a powerful wizard to create the complex

scenarios needed for LTE-A, HetNet

• Drag, drop and design that allows creation of complex scenarios

• Seamless, automatic computation of RF environment (power, channel conditions, etc.) for the defined scenario

• Automatic configuration of the RNX test bed to map to the scenario at hand

• Scenario builder library for commonly used scenarios: 3GPP carrier aggregation scenarios Operator deployment scenarios

40

Scenario Builder UI

Controls to

manage the canvas

Different types of

devices you can

drop on the canvas

A waypoint indicates a

point in the mobility

path. User can choose

channel conditions at

the beginning of

waypoint

User can drag this slider

to determine route of

mobility path

Properties associated

with an ENB or a

waypoint

Location and

coverage area of

the cell

41

Scenario Builder Example Use Cases

• Single-Cell Testing:

Near Cell, Far cell scenarios

Attenuation sweeps

Receive sensitivity tests

• Handover Testing:

Basic/Complex HO

Cell edge Ping-Pong

iRAT HO

• Carrier Aggregation Testing

Inter-Band CA

Intra-Band CA

• Small Cell Testing:

Small cell – Macro HO

Small cell Ping-Pong

42

F i e l d To L a b

( V i r t u a l D r i v e Te s t P l a y b a c k )

43

FTL Intro

• Field testing has some inherent challenges – Time consuming

– Expensive

– Results are not repeatable since the real world is dynamic

– R&D may not be local to where you see the issue

44

The Solution - Field-to-Lab!

FTL is a solution that recreates the RF environment from the Field, in

the Lab

45

How Does FTL Work?

Drive log

from RF

Scanner/

DM

Device in

the Lab AzMapper AzPlayer

ACE

Platform

FTL

Support for popular

platforms such as:

Qualcomm QXDM

JDSU W1314A

PCTEL SeeGull

Accuver XCAL

Anite Nemo

Huawei PROBE

• Intelligently post-processes

drive log data to remove

erroneous data

• Provides L1/L2/L3

visualization capabilities to

help narrow down problem

areas • Generates playback files

to be used with AzPlayer

• Streams RF channel

information to the ACE MX

• Recreates the complex RF

environment captured in the

drive log

• Creates a repeatable RF

environment.

• Device subject to

field conditions

• FTL also allows user

to subject device to

variants of the field

condition by modifying aspects

of the environment

46

AzMapper - Settings

47

AzMapper – Raw Data

48

AzMapper - Per Sector View

• Enables visualization of the timeline of sectors and powers

• Accelerates detection of RF anomalies such as rising pilots or dead zones

49

AzMapper – Environmental Profiling

• Enables profiling of the environment as Urban, Rural etc.

• Facilitates correlation of performance with environment

• Helps optimize drive testing

50

AzMapper - Contextual Display of Information

• Highlights locations of critical call events

(handovers etc.)

• Enables identification of problem spots

• Facilitates debugging of issues by

providing an integrated view of RF and

L2/L3

51

AzMapper in Action

• Accurately recreates the field RF environments via AzPlayer + ACE

• Accurate reconstruction of: - Power (RSSI, RSRP/RSCP - Noise (Ec/Io, SINR) - Velocity - Multi-path fading - Frequency shift - Antenna correlation - Propagation delay 4. Automate tests with Test

Builder

1. Capture field environment with a device or scanner

Field Data Log

2. Import field data into AzMapper

Support for popular platforms such as: Qualcomm QXDM JDSU W1314A PCTEL SeeGull R&S TSM-W Accuver XCAL Anite Nemo Ascom TEMS

3. Playback field data in the lab (AzPlayer + ACE)

AzPlayer + ACE

• Fully automate test cases - ACE MX - eNBs and BSEs - Handsets and USB data cards - QXDM, Metrico Datum, TEMS - FTP, iPerf, web browsing • Create test schedule or run 24/7

testing • Generates detailed reports - Throughput - Voice quality (PESQ) - Call Success/Failure - Call setup time - Handover duration - And more…

Test Builder

• Post-processes drive log data to remove erroneous data

• Provides visualization capabilities to help analysis of RF environment

• Intelligently maps real world sectors to fit lab test bed • Generates AzPlayer playback file

52

A C E R N X B e n e f i t s S u m m a r y

53

ACE-RNX Customer Benefits Summary

Aspect Details Customer Benefit

Integrated network

environment emulation

(VNE)

• Integrated emulation of

HetNet environment

• Seamless & synchronized

signal generation

• Fully configurable signals

• Significant cost savings in building test bed

• Simplified test bed (setup & ongoing savings)

• Ability to configure signals on the fly –

significant time savings

• More reliable (less dependencies on 3rd party)

• Easier to maintain, reconfigure test bed

Manage networks and

links for complex tests

(Scenario Builder)

• Drag, drop and design for

creation of scenarios

• Automated computation of

conditions

• Automatic configuration of

the RNX test bed

• Enables creation of complex scenarios that can’t

be created through traditional means

• Removes the onus on the user to calculate and

define the network environment for the scenario

• Significant time and effort savings

• Dynamic Playback • Dynamic uplink noise

• 1 ms playback

• Higher dynamic range

• Enables new test scenarios (ex. TTI bundling for

TRUE VoLTE testing)

• Playback of more extensive real world conditions

• Playback of high power scenarios

2019-6 MJM No. ACE-RNX-E-L-1-(3.00)

ace rnx channel emulator ace-rnx product introduction...10 • 5g channel model is cost option. this...

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