Nexedge 2009 Kes(Animation)-Psa

Copyright © 2007 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval.

Digital Systems

April 2008

Preliminary Information: subject to change without prior notice or obligation

Copyright © 2007 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. 2

System Overview

Kenwood offer New Digital System

Digital WirelessDigital Wireless

6.25kHz and 12.5kHz bandwidth6.25kHz and 12.5kHz bandwidth

Improved Audio QualityImproved Audio Quality

Multi Site NetworkMulti Site Network

Built - In - ControllerBuilt - In - Controller

Original Air Protocol Original Air Protocol

Secured Communication Secured Communication

Interoperability Interoperability

Easy Migration (Analog/Digital)Easy Migration (Analog/Digital)

Wide CoverageWide Coverage


P25TETRA

DMR

TETRA

DMCA

FCC Announcement regarding narrow banding• All radios must operate in 12.5kHz by 2013• Must obtain 6.25kHz capability by 2005 (ideally)• Market request - KENWOOD to provide radio SYSTEM

• Market trend to shift from Analog to Digital

• Higher Frequency Efficiency

• In Response to Various Customer Requests

• Low Cost Network System

System Overview

Why does Kenwood offer New Digital System ?

We are moving to “System Supplier”


1Technology Comparison1.


Digital comparison

NEXEDGETM Digital in US Digitals in Europe

Common Air Interface

NXDNTM P25 Phase 1 dPMR DMR DMR TETRA

Category

PMR

Conventional / Trunking

PMR

Conventional / Trunking

License Free

dPMR446

Tier II

PMR

Conventional

Tier III

PMR

Trunking

PMR

Trunking

Modulation Type 4Level FSK π/4-QPSK

Channel Bandwidth

6.25k/12.5kHz 12.5kHz 6.25kHz 6.25/12.5kHz* 25kHz

Channel Access FDMA TDMA*

Channel / Carrier

1 2 2 / 4

Gross Bit Rate 4800/ 9600bps 9600bps 4800 bps 9600bps 36 kbit (4ch)

MarketUSA

World wideUSA EU EU

EU/China/Asia/Africa

ManufacturerKENWOOD /

ICOMMotorola / EF

JohnsonICOM

MOTOROLA / SELEX

?

MOTOROLA

EADS

SEPURA


Product Portfolio

Price

Features

System RadioSystem Radio

Conventional Radio

Low Tier Radio

Digital Trunked Radio

P25

Most high endMost high end

NX-200/300


Compare to …

• Speech Quality / Clarity– TETRA uses HSX VOCODER, developed in 90’s.

– Poor naturalistic voice

TETRA

* Based on Kenwood’s simulation

• Coverage– Communication distance*

• TETRA : Mobile@8km/h, Suburb, 10W 11km• TETRA : Portable@8km/h, Suburb, 1W 5.7km

Less than half of UHF NEXEDGETM’s Communication coverage Almost 1/4 of VHF NEXEDGETM’s Communication coverage

• Number of Base stations*– 4-6 (16-18) sites needed for equivalent 1 site NEXEDGETM coverage

for UHF (VHF)


Compare to …

• Speech Quality / Clarity– P25; IMBE Vocoder Old technology

– NXDN; AMBE+2 Better in audio quality, and

higher compression rate

P25

* Based on Kenwood’s simulation

• Target User

– Mostly for high-end users

– Highly secured, high spec Public Safety

– Expensive


New Digital System vs. P25

APCO P25 NEXEDGE

Phase 1 Phase 2

Access FDMA TDMA FDMA FDMA

Modulation C4FM CQPSK 4 Level FSK 4 Level FSK

Band Width 12.5 kHz 12.5 kHz/ 2 slot

12.5 kHz 6.25kHz

Data Rate 9600bps 4800bps 9600bps 4800bps

DeviationPhase

+/-1800 Hz+/- 600 Hz

+/-135 deg+/- 45 deg

+/-2400 Hz+/- 800 Hz

+/-1050 Hz+/- 350 Hz

Analog designAnalog design


B/I Digital Products

Kenwood MOTOROLA ICOM

Product Series /

Model Name

NEXEDGETM

NX-200(S)/300(S)/700/800

NXR-700/800/710/810

MOTOTRBO

IC-F4029SDR IC-F3162T/F4162T

w/ UT-126H

CategoryLicensed Radio

Conv. / Trunking

Licensed Radio

Conventional

License Free

dPMR446

Licensed Radio

Conv. / (Trunking)

Common Air Interface

NXDNTM

(6.25/12.5kHz) DMR dPMR 6.25kHz Digital only

Open Proprietary with ICOM

ETSI Standard ETSI StandardOpen Proprietary

with Kenwood

100% Digital design 100% Digital design

http://www.pwchi.com/mototrbo/motorola_xpr6500.htm


Compare to …

• Trunking option– Single site trunking just available as of today (06/02/2009, website news)

– No confirmation from ICOM on Trunking capability as yet

ICOM Digital

• NXDNTM compliance

– F3162/4162 will meet NXDNTM

Plug-in to existingAnalog radio.Only 6.25kHz capable.


Compare to …

• Trunking Repeater– Need Optional UC-FR5000 for Single-Site Trunking & IP

network connection (IP base recently released)

– Mobile like hardware as analog

– No built-in Digital Trunking Controller

– 2 RF/Ch option is available (see top left picture)

ICOM Digital

FR5000/6000 Repeater

Mobile like repeater has lighter duty cycle as compared to a base station with big heat-sink design. The impact is more significant when 2 RF is packed into one. This may be suitable for light duty application but not heavy or long term usage.When use as a Control Channel, it may stress the transmitter and hence its life-cycle.


What is NXDNTM?

NXDNTM

(Air interface, FDMA, 6.25kHz)Supporting Basic Features ( voice call, etc.)

• To avoid monopoly Kenwood, Icom and many more companies has sign MOU and

agreed to promote NXDNTM CAI (Common Air Interface) for the benefit of end-user.

Original application(Originator)

Kenwood(NEXEDGETM)

Icom(IDASTM)

Original application


FDMA and TDMA

• TDMA (Time Division Multiple Access)– Pros

• Better power consumption than FDMA (Theoretically)• Full duplex capability

Time

Time Slot

– Cons• Limited Communication distanceLimited Communication distance due to the Guard Time

(up to 35km approx. for TETRA, up to 150km approx. for DMR)• Repeater required (Multi-slot not available in Direct Mode)• Not a true physical 6.25kHz technology Not a true physical 6.25kHz technology (6.25kHz equivalent)• Linear external AMP required for TETRATETRA


Delay and the Guard Time

Data

S2S1 S1Terminal

Base

Data

S1 S1S2S1 S1S2

Time

Data

S1 S1S2

Data

Collision

Margin = Guard Time

•The more distance gets further, the more delay increases

Coverage Limitation

S2S1 S1


FDMA and TDMA

• FDMA (Frequency Division Multiple Access)– Pros

• Direct mode communication between 2 parties is possible.• Pure very narrow technology resolving Freq. resource issue• Majority existing equipments can be reused (No linear AMP

required)• Less sites are needed for same amount of coverage.

Frequency Bandwidth

Two Channels

Time

– Cons• Current consumption (same level as analog FM)


TDMA Spectrum Efficiency

TDMA 1 voice path @ CH

12.5 kHz “efficiency”

12.5 kHz

12.5 kHz channel emission mask

Time

Still occupies 12.5 kHz channel band width

12.5 kHz

12.5 kHz channel emission mask

TDMA 2 voice path @ CH

Equivalent 6.25 kHz “efficiency”

Time


FDMA Spectrum Efficiency

12.5 kHz

12.5 kHz12.5 kHz channel emission mask

FDMA 1 voice path @ CH

12.5 KHz “efficiency”

6.25 kHz

6.25 kHz x 2

6.25 kHz

Two 6.25kHz spectrums can be accommodated

6.25 kHz

6.25 kHz

FDMA 1 voice path @ CH

6.25 KHz “efficiency”

Improve Interference resistance


Compare to …

• Coverage– NEXEDGE’s coverage is 20% wider than FM analog

(would vary depending on the conditions)

MPT

Ch 1 (12.5kHz) Ch 2 (12.5kHz)Control Ch Traffic Ch

Ch 1 (6.25kHz) Ch2 (6.25kHz) Ch 3 (6.25kHz) Ch 4 (6.25kHz)Control Ch Traffic Ch Traffic Ch Traffic Ch

MPT

NEXEDGE

• Performance in Mobile Use– NEXEDGETM has excellent quality in high speed faded propagation

• Channel efficiency– Excellent Freq. efficiency in NEXEDGETM 6.25kHz mode

Has 3 times more traffic channel in this case.

Has 3 times more traffic channel in this case.


New Digital System vs. Analog

• vs. Analog Conventional – Equivalent coverage Area– Excellent Frequency efficiency– Clear Audio Quality in Fringe Area– Various Call type, Individual call, group call, broadband call– Various high speed Data communication with voice, status, GPS, short text, long text– Highly Secured Communication

New Digital System selects FDMA with FSK modulation. It allows to use same external equipment of Analog system, such as RF Amp.

Signal strength Weak

12dB SINAD3% Error

FEC

analog digital


2NEXEDGE Digital System2.


NEXEDGE™ is Multimode

• NX Portables & Mobiles supportNX Portables & Mobiles support– FM Conventional Zones– FM LTR Zones– NXDN Conventional Zones – NXDN Trunked Zones – NEXEDGE Trunked IP Network– NEXEDGE Conventional IP Network

• NXR Base Stations supportNXR Base Stations support– FM Conventional Mode – External FM Conventional & LTR Logic Controllers– NXDN Conventional Mode – NXDN Trunked Mode – NEXEDGE Trunked IP Network– NEXEDGE Conventional IP Network

• NX/NXR Channel BandwidthsNX/NXR Channel Bandwidths– FM: 25 or 12.5 kHz per channel – NXDN Digital Air Interface: 12.5 or 6.25 kHz per channel


Application

• Radio to Radio– Analog Mode (25k/ 12.5kHz BW)– Digital Mode (12.5k /6.25kHz BW)– Mixed Mode (12.5kHz BW)

• Repeat– Analog/Digital Mode– Mixed Mode (12.5kHz BW)– User List– 63RAN

Analog/ Digital Conventional

Analog direct mode

10110100 10110100


Application

Digital Trunking

Control Channel


Application

Analog /Digital Trunking - Migration

Digital Control Channel

10110100 10110100Busy

• LTR Trunking

• Digital Trunking (AUX Mode)

– Connect AUX I/O of Repeater and RDD or Cross Busy Input of LTR Controller for BUSY signal.


NXDN Conventional Mode

• 1,000 Group IDs (GID) per site (Terminal programmable up to 65519)• 1,000 Unit IDs (UID) per site (Terminal programmable up to 65519)• 63 Radio Access Numbers possible (Can search 16 RANs simultaneously)

– Digital equivalent of FM QT(CTCSS)/DQT(DCS) for conventional shared repeater use

• Mixed Channel Type– NX subs & NXR bases support both FM legacy & NXDN traffic on the same channel

simultaneously

Mixed Channel Type (Conventional only)

•Receives FM or NXDN >> Transmits FM or NXDN

•Base, repeater and simplex talk around operation

BaseRepeater

Simplex Talk Around


NXDN Trunked Mode

• Single Site Trunking Option– Channel controller datacom via Ethernet 802.3– Uses off-the-shelf switches (not proprietary switching

hardware)

• 1-to-30 Channels @ Site• 3,000 UIDs @ Site• 3,000 GIDs @ Site• Busy Queuing (8 Priority Levels with Preemption)• Remote Regrouping• Remote Stun/ Kill

Ethernet Switch

• Priority Monitor GID 1 & 2• Fail Soft Mode


Multi-SiteIP Networks


Multi-Site IP Networks

• The NEXEDGETM network option leverages the power of IP to link digital trunked sites together for wide area call capabilities.

System Manager

(IP connection)

IP Connection

Router

Ethernet Switch

Repeat Operation

Wide area Calling



• 16 Site @ Network Capacity – Multiple trunked sites linked together as one network – 16 Sites @ network (48 sites soon)– All sites can be used for Inter-site Group Call– For campus, citywide, countywide, regional or inter-state communications.

System Manager

(IP connection)

IP Connection



• LAN/WAN Connectivity– Scalable networks created over existing IT assets, private microwave, spread spectrum links

or carrier services.

• Off-the-Shelf 100 Base-T Ethernet Switching & Routers– Uses standard IT networking equipment – No proprietary servers, gateways or audio switching hardware required

• Virtual Private Network- Inter-site routing uses VPN tunneling providing an encrypted and authenticated secure communications link within any IP network.

System Manager

(IP connection)

IP Connection

Router

Ethernet Switch


GPS Location • A fleet and asset management tool• Mobiles: Internal Receiver Option• Portable: Speaker Mic Option


3System Topology3.


System Topology

• FPU– Radio/Repeater Parameter Configuration– Various setting for Analog– Various setting for Digital Conventional

• System Manager– Trunking/ Network Configuration– ID Table/ Service Class Management– Maintenance (Real Time Monitor, Calling Log, Fail Log, Analyze)

Direct Connect

Hub Connect

Network Connect

FPU

System Manager

Copyright © 2007 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. 35Copyright © 2004 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval.


NXDN: Conventional & Trunking

• Over-the-Air Caller ID (UID) – UID alphanumeric alias sent over the air (no need to program in every radio)

• Remote Inhibit (Stun, Stun Off & Kill / UID )– Over air disable radios: TX or TX & RX audio

– Over air revive radio

– Over air Kill: erase all radio program (need to re-program physically to revive)

• Remote Check (UID)– Over air check if radio powered on / in range

– Remote Re-grouping (Trunking Mode only)

• Emergency– Declare an Emergency to a console, an individual, a group or all groups

– Emergency Key (manual trigger)

– Emergency Man-Down Tilt-Switch (portables)


NXDN: Trunking

• 1- 30 Channels @ site– 1 CH Site: Trunked mode features (no trunked CH pool)

– 2-30 CH site: Trunked mode features & trunked CH pool efficiency

• Transmission Trunking (similar to LTR)– Traffic Channel (TC) acquired @ PTT / TC released when PTT released

– Less systems resources utilized

– Blocking/queues probable during peak hours

• Message Trunking (similar to MPT) – TC held for length of call (inactivity timers release TC)

– More system resources utilized

– No blocking/queues once TC acquired


Backup Slides

Automatic Control Channel Rollover (trunking per site)– Enable the CC to cycle once per day at a certain Control Channel Rollover

Time to distribute power amp duty

Dual Functional Channel

• A channel that can function as CC or TC by conditions

Ethernet Switch






CC

CCCC

CCCC

CCCC

CCCC

CC task to be switched over to other units periodically in

order to prevent the load concentrated on one unit.


Backup Slides

• Non-dedicated Control Channel (trunking per site)– Enable/disable use of a CC as a TC when all TC’s at a site are busy– But not applicable for a site with multiple TCs – Very useful for Single-channel-multi-trunking (Connecting single repeaters via IP)

Ethernet Switch

CCTC Dual Functional Channel

IP Network

Expansion of coverage as if single repeaters connected via network!

Single Channel Wide Area Operation. (useful for low traffic application)


Upcoming Upgrade

Next year upgrade:-

• IP Link in NXDN Conventional Mode

(Up to 48 sites w/ Multicast, 16 sites w/ Unicast)• Expanded Multi-Site Capability

(Up to 48 sites w/ Multicast, 16 sites w/ Unicast)

Up to 6 sites (including own site) can be covered by an Inter-site call

Current Inter-site Group Call (Unicast)


Upcoming Upgrade

Up to 6 sites (including own site) can be covered by an Inter-site call

Current Intersite Group Call (Unicast)

Site 13

Site 14

Site 16

Site 9

Site 11

Site 12

Site 5

Site 6

Site 7

Site 4

Site 10

Site 8

Site 15

Site 2

Site 3

Site 1

Unable to join the Intersite call conversation

Upcoming Upgrade

Able to cover all the 16 sites!

New Intersite Group Call (Unicast)

Site 13

Site 14

Site 16

Site 9

Site 11

Site 12

Site 5

Site 6

Site 7

Site 4

Site 10

Site 8

Site 15

Site 2

Site 3

Site 1

Upcoming Upgrade

All the 48 sites are Intersite Group Call available with Multicast Network.“Regional” grade USB Key needed.

New Intersite Group Call (Multicast)

Site 1

Site 2

Site 3

Site 4

Site 5

Site 6

Site 7

Site 8

Site 9

Site 10

Site 11

Site 12

Site 13

Site 14

Site 15

Site 16

Site 17

Site 18

Site 19

Site 20

Site 21

Site 22

Site 23

Site 24

Site 25

Site 26

Site 27

Site 28

Site 29

Site 30

Site 31

Site 32

Site 33

Site 34

Site 35

Site 36

Site 37

Site 38

Site 39

Site 40

Site 41

Site 42

Site 43

Site 44

Site 45

Site 46

Site 47

Site 48

Copyright © 2007 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval. 44Copyright © 2004 KENWOOD All rights reserved. May not be copied or reprinted without prior written approval.

NEXEDGE VIDEO ShowNEXEDGE VIDEO Show

Viewing and listening is believing.(Separate file for Video Show.)

Documents

Nexedge 2009 Kes(Animation)-Psa