MOTOTRBOTM

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• MOTOTRBOTM

• LINKED CAPACITY PLUS
• Training Roadshow

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Linked Capacity Plus OVERVIEW

• Combines all the benefits of IP Site Connect and
  Capacity Plus
• Adds CAPACITY to existing IP Site Connect (IPSC)
  systems
• Adds COVERAGE to existing Capacity Plus (Cap)
  systems
• No central controller needed
• Logic is managed in a distributed fashion like
  Cap
• Does not use a dedicated control channel
• Resilient to channel interference
• Suitable for shared channels
• Repeaters (Peers) / sites connected via an IPv4
  based network like IPSC
• Linked Capacity Plus (LCP) requires more
  bandwidth than IPSC
• Consists of up to 5 sites (15 sites - future
  release)
• Up to 6 trunked (voice and data) 3 data revert
  repeaters per site
• Same number of repeaters per site not required
• Tolerates failures by design
• The Master repeater is the single point of
  failure, however this single point of failure is
  limited only to the arbitration of IP addresses

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Linked Capacity Plus OVERVIEW

A set of Single-Site Capacity Plus systems
Physical connection like an IP Site System
Some additional software
Linked Capacity Plus
System Wide Master

• Capacity Plus ? Trunking
• IP Site Connect ?
• Link Management,
• Wide Area call processing
• Additional Software ?
• Dynamically forms an IPSC between the current
  Rest channels
• Identifies the Rest channel
• Combines the Call set-up procedures (i.e.
  Arbitration TRT)
• ( TRT Transmit-Receive-Transmit)

Can use MTR3000 and/or 32MB DR 3000 repeaters
(but NOT 8MB DR 3000 repeaters).
  Rest channel
  Master
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Linked Capacity Plus OVERVIEW
Features

• Includes the following MOTOTRBO special
  features
• Enhanced privacy
• Transmit Interrupt
• Digital telephone patch
• GPS (including enhanced)
• Data applications (ADP interfaces)
• Option board
• RDAC
• Includes the following trunking system features
• Selective site light-up
• Dynamic for individual calls
• Static for talkgroup calls
• Automatic subscriber roaming
• Site restriction

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Linked Capacity Plus OVERVIEW
Features

• ID Space for Talkgroups is limited to 1 to 254
  for Local and Wide Area Talkgroups
• (W Number of Wide Area IDs, S Number of
  sites)
• No local channels like IPSC
• No local All Call Talkgroup
• A Wide Area Talkgroup ID is associated with a set
  of sites
• Enables Statically defined Selective site light
  up for Talkgroup calls
• A number of channels at each site can optionally
  be reserved for Wide Area talkgroup calls.
• All Wide Area talkgroup repeater configuration
  parameters are provisioned into the Master
  repeater only.

Group Call Type Site 1 Site 2 Site S Total Number of IDs
Local 254-W 254-W 254-W (254-W) S
Wide Area W W W W W
Total Number of Talkgroups Total Number of Talkgroups Total Number of Talkgroups Total Number of Talkgroups Total Number of Talkgroups (254-W) S W
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Linked Capacity Plus OVERVIEW
Features - Data

• LCP data is similar to Cap
• Radio to Radio data is always on a trunked
  channel
• Server to Radio data is always on a trunked
  channel
• Radio to Server data is either on a trunked or
  data revert channel
• Radios share the revert channels
• LCP data is similar to IPSC
• Supports both local and wide area data revert
  channels
• A wide area / local setting is configured into
  all data revert repeaters
• A wide area data revert channel is formed by
  multiple data revert channels (one per site)
  sharing a common Channel ID
• Initially, LCP supports server data via Control
  stations ONLY
• In the future, LCP will also support server data
  via the repeater IP interface

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Linked Capacity Plus OVERVIEW
Features - Data
Flexibility for configuring Data Revert Repeater
Channel IDs.
Example System 1
Site 1 (Ch ID 33W) Site -2 (Ch ID 33W)
Site 3 (Ch ID 33W) Site 4 (Ch ID 33W)
Site 5 (Ch ID 33W)
Example System 2
Site 1 (Ch ID 33W) Site -2 (Ch ID 33W) Site
3 (Ch ID 33W) Site 4 (Ch ID 35W)
Site 5 (Ch ID 35W)
Example System 3
Site 1 (Ch ID 33L) Site -2 (Ch ID 33L)
Site 3 (Ch ID 43L) Site 4 (Ch ID 47L)
Site 5 (Ch ID 47L)
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Linked Capacity Plus OVERVIEW
Features

• LCP does not support
• Priority Queuing of Calls
• However, where all system channels are busy
• Emergency calls are able to clear down existing
  calls using transmit interrupt (if necessary).
• Additionally, supervisors can clear down existing
  calls using transmit interrupt (Remote Voice
  De-key).
• Priority Monitor
• However, this is supported for All Call and
  Emergency call
• Subscriber Access Control
• However, this will be supported in a release
  later this year
• ( this is the ability for radios to leave a call
  in progress to join a higher priority call)

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Linked Capacity Plus OVERVIEW
System Loading

• An LCP system handles Local calls as efficiently
  as Cap, therefore if all calls are Local, T
  the sum of the number of radios supported by each
  individual site.
• The number of radios supported by a given LCP
  site the number of radios supported by a Cap
  system having the same number of trunked
  channels.
• If there are Wide Area calls, T is estimated by
  first estimating R for a Cap system having N
  trunked channels.
• If all calls are Wide Area, T R.
• If there are a mixture of both Local and Wide
  Area calls, T RS (L (1-L)/W)
• Note
• T Total number of Radios supported by LCP
  system
• R Number of Radios supported by Cap system
• N Number of trunked channels at the smallest
  LCP site
• S Number of LCP Sites
• W Average number of Sites associated with Wide
  Area Talkgroups
• L Number of Local calls as a fraction of the
  total number of calls

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Linked Capacity Plus OVERVIEW
System Loading Example

• For a 5 site system where each site contains 12
  trunking channels
• Assume the loading for a 12 channel Cap system
  1,200 radios(note this corresponds to low
  voice, low GPS 5 GoS).
• If all calls are local, LCP loading 1,200 x 5
  6,000 radios
• If all calls are wide area, LCP loading 1,200
  radios
• If 40 of calls are Local and Wide Area calls are
  setup over an average of 3 sites, LCP loading
  1,200 x 5 ( 0.4 (1 0.4)/3) 3,600 radios

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Linked Capacity Plus OVERVIEW

• Requires a software upgrade of radios and
  repeaters
• Repeaters must have 32MB of flash memory
• Compatible with current and next generation
  MOTOTRBO radios
• Requires feature activation in the repeater
• HKVN4108A DR 3000 Full license key
• HKVN4063A DR 3000 Incremental license key (from
  Cap)
• HKVN4109A MTR3000 Full license key
• HKVN4070A MTR3000 Incremental license key (from
  Cap)
• New LCP compatible version of RDAC available
• GMVN5520F RDAC CD
• The full LCP license does not support Cap
  channels, so if a repeater needs also to support
  Cap channels then a Cap / Incr. LCP license
  combination should be purchased instead.

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Linked Capacity Plus OVERVIEW
Backwards compatibility with Cap
An old (non-upgraded) Cap radio will only
operate on a single LCP site. However, its ID
must still be unique across all sites for the LCP
system.
Site 1
Site 2

• Old radios can neither make nor receive Wide Area
  Individual Calls
• Old radios can receive incoming audio targeted to
  a Wide Area TG but can not transmit audio to a
  Wide Area TG.
• Compatible Individual calls
• Compatible Group calls
• Incompatible Calls

(1)
(1)
(1)
(2)
(2)
Local TG
Wide Area TG
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Linked Capacity Plus COMPONENTS
Complete System
System Wide Master
TRNK CS
TRNK CS
LAN Network
LAN Network
LAN Network
Conv CS
BR 34
Conv CS
RDAC
PC1
Router Switch
Router Switch
  Rest channel
  Master
  Data Revert Repeaters (Optional)
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Linked Capacity Plus Components
The role of the Master
System Wide Master

• Requires a static IP address of which all
  repeaters (via their configuration) need to be
• aware
• Introduces repeaters to each other
• Single point of failure (for arbitration of IP
  addresses)

LAN Network
LAN Network
LAN Network
BR 34
Router Switch
Router Switch
  Rest channel
  Master
  Data Revert Repeaters (Optional)
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Linked Capacity Plus Components

• If the Master repeater fails
• The system continues to function
• Additional repeaters, sites, or host PCs CANNOT
  be added to the system
• A redundant repeater can be switched to act as
  a Master

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Linked Capacity Plus Components
The role of a Peer

• Exchange Keep Alive messages
• Use information to dynamically configure system
• Participate in selecting the next Rest Channel
• Distribute the voice/data payload to all
  repeaters

LAN Network
LAN Network
LAN Network
BR 34
Router Switch
Router Switch
  Rest channel
  Master
  Data Revert Repeaters (Optional)
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Linked Capacity Plus BACK END NETWORK
Repeaters at a site are connected over a LAN like
Cap Only LCP repeaters should be present on the
LAN

• An IP Network is used
• for voice / data
• communication between
• sites like IPSC
• Requires greater
• bandwidth (compared
• to IPSC) from ISP
• provider.

LAN Network
LAN Network
LAN Network
BR 34
Router Switch
Router Switch
  Rest channel
  Master
All repeaters (and only the repeaters) at a site
must be behind a router and a switch
  Data Revert Repeaters (Optional)
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Linked Capacity Plus BACK END NETWORK
Communication Among Repeaters
IP Limited Broadcast address (255.255.255.255)
messages
IP Limited Broadcast address messages For
communication among repeaters at a site. Common
Site IP Address messages Rest channel repeaters
uses these to generate periodic site Keep Alive
messages. Start of call setupSource Rest
channel repeater sends one message to each Site
IP Address associated with call, and each Rest
Channel repeater in call responds such that all
repeaters in call learn IP addresses of all other
repeaters (at other sites) in call.
Common Site IP Address messages
LAN Network
LAN Network
LAN Network
BR 34
Router Switch
Router Switch
  Rest channel
  Master
  Data Revert Repeaters (Optional)
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Linked Capacity Plus BACK END NETWORK
Considerations

• Master repeater - Must have a static IPv4
  addressPeer repeaters (and RDAC applications) -
  Either static or dynamic IP IPv4 addresses.
• Since LCP repeaters at a given site use IP
  Limited Broadcast address messages to communicate
  among each other, then
• All repeaters pertaining to a given site must be
  behind a single Ethernet Switch/Router
• The only devices that can be on the sites LAN
  are the repeaters pertaining to that site (and
  any RDAC applications)
• Hairpinning routers generally do not need to be
  used
• Refer to the System Planner for details on
  recommended Switches/Routers. For constructing a
  small Linked capacity Plus demo system, the
  NETGEAR WNR1000 Ethernet Switch/Router is
  recommended.
• Refer to the System Planner for details on how to
  calculate the bandwidth requirements of the
  backend network.
• A Hairpinning router must be used at a site if
  that site contains multiple LCP devices and one
  of these devices is either a Master repeater or
  an RDAC application.

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Linked Capacity Plus PROCEDURES

• A Wide Area Talkgroup call goes out on its (CPS
  configured) associated sites and only starts if
  channels are available at all associated sites.
• A configurable number of channels at each site
  can be reserved for Wide Area Talkgroup calls).
• A radio tries up to 3 times to setup a call with
  random delays inserted in between each attempt.
• An Individual call setup goes out on all sites
  where a channel is available.
• These sites all attempt a high-speed handshake
  (called RTR) with the target radio.
• The site that succeeds with the high-speed
  handshake and the site where the initiating radio
  is located remain in the call while the other
  sites drop out (i.e. Dynamic selective site
  light-up).
• The high-speed handshake occurs concurrently with
  the call set-up, so no additional delay.

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Linked Capacity Plus PROCEDURES

• TRT in Cap restricts the effect of collisions.
• Arbitration in IPSC ensures that all the sites
  select the same call.
• LCP improves and combines these two processes
  into a single process called TR-A-RT.
• TR-A-RT can manage and allocate the channels
  for up to 5 concurrent calls (each occurring at
  separate sites) in one arbitration.
• The Wide Area Call setup time for LCP is
  approximately 240 ms more than for Cap (this
  increases where more than 2 concurrent calls need
  to be allocated).
• The Local Call setup time for LCP is same as for
  Cap.
• A radio can receive a Digital Telephone Patch
  Call on any site, however a radio can only
  initiate a Digital Telephone patch call on a site
  connected to an APP (i.e. a radio can not
  initiate a Digital telephone patch call via an
  APP connected to a different site).

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Linked Capacity Plus procedures
Emergency Voice Call
User initiation of Emergency

• LCP only uses impolite channel access for
  emergency calls (where necessary).
• When a repeater detects an impolite call it
  updates the system call status to the new call.
• LCP frees up channels at associated sites (if
  necessary) during an emergency call setup.
• The start of an emergency call is announced over
  all busy channels at all associated sites,
  thereby allowing radios to leave their current
  calls and join the emergency call (where
  applicable).
• After setting up an emergency call, if there are
  no free channels left at a site then the busy
  rest channel shifts to a channel where there is a
  non emergency call in progress (thus ensuring
  that one emergency call does not clear down
  another emergency call).

Yes
Radio on Traffic channel?
Move to Rest Channel
No
Emergency Call for same Talkgroup already active?
Emergency Call transmitted over ongoing Emergency
Call because receiving radios already on channel.
Yes
No
Rest Channel Idle?
Yes
Emergency Call transmitted on Idle Rest channel.
No
Call on busy Rest Channel interruptible?
Transmit interrupt used to stop ongoing call.
Emergency Call then transmitted on Idle Rest
channel.
Emergency Call transmitted impolitely over busy
Rest channel.
No
Yes
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Linked Capacity Plus procedures
Roaming

• To minimise the amount of Beacon signalling
• An LCP (Roaming) Beacon is appended to every 5th
  Cap (Lost Signal Detection) Beacon
• To facilitate faster scanning
• The Rest Channels at all the sites synchronise
  their Beacons
• The LCP (Roaming) Beacons at a given site contain
  a list of Rest Channel IDs for that sites
  neighbouring sites
• Radios use the list of Rest Channel IDs for a
  sites neighbouring sites to determine which
  channels to scan when trying to roam using either
  Passive or Active Site search
• The list of neighbouringsites for each site
  isconfigured only into theMaster repeater
  (notethe Master repeatershares this
  informationwith all the otherrepeaters in the
  system)

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Linked Capacity Plus procedures
Roaming Passive Site Search (Automatic Roaming)

• Radio builds up sorted roam list based on the LCP
  (Roaming) Beacons transmitted on the home sites
  Rest Channels.
• If home site signal strength drops below a
  programmable threshold, radio starts to scan
  through sorted roam list for a new site
• Radio only scans for a new site while in the idle
  state.
• Also, the radio does not scan for new site if
  Site Lock feature enabled.
• During Passive Site search, radio identifies site
  with strongest signal then makes that site its
  new home site.
• Radio remains on the current home site and
  continues scanning until a better site is found.
• While a radio is carrying out a Passive Site
  Search, it needs to leave its current home site
  for short durations which may cause the radio to
  miss activity on its home site (resulting in late
  entry to voice calls, or missed control/data).

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Linked Capacity Plus procedures
Roaming Active Site Search

• Radio sends wake-up messages to each site in
  sorted roam list until it finds an active site.
• Active Site Search is initiated if
• a radio initiates transmission and its home site
  rest channel repeater can not be woken,
• or a user initiates a Manual Site Roam (using the
  menu or a programmable button).
• On waking a repeater, the radio synchronises
  itself with the repeater, completes the
  transmission and makes the new site its home
  site.
• If the end of the sorted roam list is reached and
  a site is not found, the radio provides the user
  with a failure indication.
• Active Site Search does not necessarily find the
  best site, but rather allows the radio to move to
  the next in range site.

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Linked capacity Plus User Interface
Home Screen
Roaming Icon Radio not in locked state. It
will disappear after the user locks the site.
Channel name
Press PB to lock site
Turn on repeaters
Out of range state (Same as Cap)
Unlock state
Lock State
Radios LED will flash yellow if radio in system
busy or local system busy state
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Linked capacity Plus User Interface
Site Information
Press Programmable Button to display site alias
Site Alias Site Number
Press site button to display site alias
Press Programmable Button to find site
Cannot find site
Press PB to find site
Successfully Found Site
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Linked capacity PLUS DEMO SYSTEM
Equipment List

• 4 x DR 3000 UHF1, 1-25W (MDM27QNR9JA7AN)
• 4 x DR 3000 Linked Capacity Plus full licence key
  (HKVN4108A)
• 4 x DP 3600 UHF1 (MDH55QDH9JA1AN)
• 1 x RDAC v4.0 (Build 50) (GMVN5520F)
• 3 x NETGEAR WNR1000 Wireless Router including
  power supply(http//www.netgear.com/home/products
  /wirelessrouters/simplesharing/WNR1000.aspx)
• 4 x 30dB attenuator
• 7 x Ethernet cable
• 1 x PC (for RDAC application)

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Linked capacity PLUS DEMO SYSTEM
System Architecture
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Linked capacity PLUS DEMO SYSTEM
Site 1 (Master) Router Configuration Step 1,
Disabling the Wireless Router
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Linked capacity PLUS DEMO SYSTEM
Site 1 (Master) Router Configuration - Step 2,
Setting the LAN IP
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Linked capacity PLUS DEMO SYSTEM
Site 1 (Master) Router Configuration Step 3,
Setting the WAN IP
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Linked capacity PLUS DEMO SYSTEM
Site 1 (Master) Router Configuration - Step 4,
Setting the Port Forwarding
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Linked capacity PLUS DEMO SYSTEM
Site 1 (Master) Router Configuration - Setting
the Port Forwarding
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Linked capacity PLUS DEMO SYSTEM
Site 2 (Peer) Router Configuration

• Step 1 - Disabling the Wireless Router

• Step 2 - Set the LAN IP

• Step 3 Set the WAN IP

WAN Router Configuration
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Linked capacity PLUS DEMO SYSTEM
Repeater Configuration General Settings /
Privacy
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Linked capacity PLUS DEMO SYSTEM
Repeater Configuration Network
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Linked capacity PLUS DEMO SYSTEM
Repeater Configuration Cap Voice Channel
(Linked)
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Linked capacity PLUS DEMO SYSTEM
Repeater Configuration Sites / Talkgroups
(Master Only)
Site 1
Site 2
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Linked capacity PLUS DEMO SYSTEM
Radio Configuration General Settings
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Linked capacity PLUS DEMO SYSTEM
Radio Configuration Cap Contacts / Cap Group
Lists
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Linked capacity PLUS DEMO SYSTEM
Radio Configuration Cap Channels
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Linked capacity PLUS DEMO SYSTEM
Radio Configuration Channel Lists (for each
site)
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Linked capacity PLUS DEMO SYSTEM
Radio Configuration LCP Site Lists (for all
sites)
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Linked capacity PLUS DEMO SYSTEM
Radio Configuration LCP Channels / Personalities
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Linked capacity PLUS DEMO SYSTEM
Radio Configuration Buttons