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`.4 ‘ -- -' Performance Specification
`
`-
`
`.
`
`1
`
`System Interface Specification for
`radio units to be used with commercial
`
`trunked networks operating in Band III
`-
`sub-bands 1 and 2
`
`January 1988
`
`Revised and reprinted September 1991
`
`EXHIBIT
`
`
`
`ARRIS GROUP, mc.
`IPR201 5-00635 , p. 1
`Hip H...rlu1cr_lmmnnu.r1lu'ur-' Asp-an: .
`
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`
`

`

`MPT 1343
`
`System Interface Specification for
`radio units to be used with commercial-f".--'.
`trunked networks operating in Band III
`sub-bands 1 and 2
`"
`
`Revised and reprinted September1991
`
`January 1988
`
`_r-~..
`
`

`

`Crown Copyright 1988
`
`First Published 1988
`
`Revised and reprinted September 199}
`
`ISBN 1—870837—4 l-X
`
`ARRIS GROUP, INC.
`IPR2015-00635 , p. 3
`
`
`

`

`
`
`t
`
`FOREWORD
`
`This specification contains the minimum performance requirements additional to MVP 1323
`to he met by radio units used with cumrnerctal Lrurtked networks operating in Band LII. sub—
`bands I and 2. A companion specification, MPT 1347’, contains the additional minimum
`performance requirements to be met by network fixed equipment. Together these common
`specifications are intended to allow a user to migrate from one trunked radio network to
`another without having to change radio equipment.
`
`It should be noted that some aspects of the specitiaiu'on remain relatively unproven
`operationally. All reasonable efforts have been made to ensure. accuracy, but it may prove
`necessary to amend some sections in the light of practical experience. An example is Lhe
`way that the radio unit caters for time-shared and discontinuous control channels.
`
`Intellectual Property Rights
`
`..'-
`
`Firms intending to manufacture equipment which complies with the specification should be
`aware that certain features of the specification are subject to [PR claims.
`
`All firms are therefore advised that they should make appropriate enquiries through
`their Patent Agents before proceeding.
`
`ii
`
`ARRIS GROUP, INC.
`IPR2015-00635 , p. 4
`
`
`

`

`
`
`CONTENTS
`
`l.
`
`SCDPE
`
`ASSOCIATED DOCUMENTS
`
`GENERAL
`
`3. 1
`
`3.2
`
`3.3
`
`Definitions
`
`Test Conditions
`
`General Requirements
`
`TRANSMITTER PARAMETERS
`
`4.1
`4.2
`4.3
`
`Frequency Parameters
`Modulation Characteristics
`Performance Parameters
`
`RECEIVER PARAMETERS
`
`5.1
`5.2
`
`5.3
`5.4
`
`Frequency Parameters
`Demodulation Characteristics
`
`Muting
`Performance Parameters
`
`STORAGE REQUIREMENTS
`6. 1
`Introduction
`
`6.2
`6.3
`
`Types of Memory
`Summary of Storage Requirements
`
`SECURITY
`
`MAN—MACHINE INTERFACE
`
`8.1
`8.2
`
`8.3
`
`Confidence Indications
`Call Number Convention
`
`Ready for Communication Control
`
`CONTROL CHANNEL ACQUISITION AND RETENTION
`9. l
`IntIoducLion
`
`9.2
`9.3
`9.4
`9.5
`
`Radio Unit Storage Requirements
`Control Channel Acquisition Procedures
`Leaving a Control channel
`Multiple Control Channels
`
`10.
`
`REGISTRATION
`10.1 General
`
`Single Registration
`10.2
`10.3 Multiple Registration
`
`ARRIS GROUP, INC.
`IPR2015-00635 , p. 5
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`Page
`
`E
`
`-
`
`|
`
`2-1
`
`3-1
`
`3-9
`
`3—9
`
`4-1
`4-2
`4-3
`
`5-1
`5-2
`
`53
`5-3
`
`6-1
`
`6-1
`(3-2
`
`7-1
`
`8-1
`8—10
`
`8—39
`
`9—1
`
`9—2
`9-5
`9—34
`9—38
`
`10-1
`
`10—1
`10-8
`
`

`

` 11.
`
`-
`
`1“
`
`m
`rag-$5;
`
`'
`
`CALL PROCESSlNG
`
`11.1
`
`Introduction
`
`11.2 Definitions
`
`Signalling {Tanners
`11.3
`11.4 Addressing
`11.5
`Codeword Structure
`
`Channel Discipline
`11.6
`11.7 Random Access Protocol
`
`1 1.3 Registration Procedures
`| 1.9
`Basic Cal! Procedures
`
`11.10 Emergency Call Procedures
`11.11 Include Call Procedures
`11.12 Call Diversion Procedures
`
`11.13 Status Message Procedures
`11.14 Short Data Message Procedures
`1 1.15 Data Interrogation Procedures
`11.16 Not Used
`
`11.17 Standard Data procedures
`
`12.
`
`NON—STANDARD DATA LNTERFACE PROWSION
`
`12. 1 Muting
`12.2 MaJadjustment
`12.3
`Facilities
`
`12.4 Data Call Handling
`12.5
`Facilities
`
`13.
`
`FALL—BACK MODE
`13.1
`Introduction
`
`Storage Requirements
`13.2
`Entering Fall-back Mode
`13.3
`Procedures in Fallback Mode
`13.4
`Leaving Fall-back Mode
`13.5
`13.6 User Initiated Change of Network
`
`14.
`
`SHORT DATA ON THE CONTROL CHANNEL USING RQC
`14.1
`Introduction
`
`14.2 Message Format
`14-3
`The use of Control Field-s For STF = '1'
`[44
`Procedure for Radio units
`
`11 .
`
`t
`
`“-4
`
`11-4
`11—5
`11—6
`
`11—18
`11—21]
`
`11-21
`1 1Q}?
`
`11-31
`“-31
`11-32
`
`11-32
`11—32
`11-32
`11-33
`
`11.33
`
`12—1
`12-1
`12—1
`
`12-1
`12—2
`
`13-1
`
`13-1
`[3-1
`13-2
`[3-3
`13-4
`
`14-1
`
`142
`14-9
`14-10
`
`14—5
`
`An Example of the Procedures for Extended Data Messages
`
`14—17
`
`ERROR PERFORMANCE REQUIREMENTS
`APPENDIX A
`Definition
`A. 1
`A.2 Method of l‘vleasurement
`A.3
`Limits
`
`A- 1
`A-l
`A—3
`
`ARRIS GROUP, mc.
`IPR2015-00635 , p. 6
`
`
`

`

`
`
`APPENDIX B
`B.1
`
`TIMING AND DEFAULT PARAMETERS
`Default Parameters
`
`3.2
`
`Timing Parameters
`
`ANNEX
`
`ANi
`
`Clarification of Radio Unit Open-innit t1” 'I‘irnc- Shared
`Control (“name-IS.
`
`B-I
`
`B-2
`
`AN-I
`
`AN2 Recommendation for Radio Unit Behaviour once the
`
`Comprehansive Hunt Sequence has been entered
`
`:‘tN-E
`
`ARRIS GROUP, INC.
`IPR2015-00635 , p. 7
`
`
`

`

`
`
`1.
`
`SCOPE
`
`This specification covers the minimum performance requirements for radio
`1.]
`units used with commercial trunked networks imperating in Band III. Huh—hands l and 2.
`It
`cox-era:
`
`signalling requirements based upon tin: standard ,MPT 133?.
`
`MPT 1343 is designed to be read in association with MPT 132?.
`
`radio frequency requirements. where they are additional
`MPT 1323.
`
`to those in
`
`interface requirements, where advantages are to be gained from
`user
`standardisation.
`
`The specification includes two types of requirement:
`
`those that are mandatory in all radio units.
`
`those that are optional in a radio unit. but shall be implemented in a standard
`manner.
`
`1.2
`
`-
`
`-
`
`IPR2015-00635 , p. 3
`
`ARRIS GROUP, INC.
`
`

`

`2.
`
`ASSOCIATED DOCUNI'ENTS
`
`MI’l‘ 1:117 (1981)
`
`Code of practice for the transmissmn of digital information over land
`mobile radio systems.
`
`MP'I‘ 1318 (1986l
`
`Engmeering memorandum: Trunked systems in the land mobile
`service.
`
`MP’I'
`
`i323 (1987)
`
`Angle modulated radio equipment for use at base and mobile slatlnns
`in Lhe private mobile radio service operating in the t'reqtienugi band
`174—225 MHz.
`
`MPT 1327 (1988)
`
`A signalling standard for trunked private land mobile radio systems.
`
`MP1." 1331 (1937)
`
`Code of practice for radio site engineering.
`
`MPT 1347 (1938)
`
`specification for commercial
`Radio interface
`operating in Band Ill sub—bands l and 2.
`
`trunked networks
`
`MPT 1352 (1991)
`
`the approval of radio units to be used with
`Test schedule for
`commercial trunked networks operating in Band III sub-bands l and 2.
`
`
`
`
`
`1
`
`To
`
`ARRIS GROUP, INc.
`IPR201 5-00635 , p. 9
`
`

`

`
`
`3.
`
`3.1
`
`GENERAL
`
`Definitions
`
`Section numbers. appearing between H
`numbers within IVIPT 1327.
`
`ll delimiters in this sputlication refer to section
`
`Words appearing between asterisks in this section are defined terms.
`
`Acquisition: The condition obtained by the successful completion of the *control channel
`acquisition procedure* for a control channel which allows a radio unit to transmit on that
`channel.
`
`Aguisition Authorisation Data: *Network personalisation“ data which enables the *radio
`unit“ to determine by examination of the relevant sub—fields within a *system identity code*
`received on a *control channel* whether the *radio unit* is authorised to access on that
`*control channel“.
`
`it is
`Active on a Channel: A *radio unit“ is *active on a channel“ when, on that channel,
`enabled to respond to *messages" addressed to it, or is transmitting, or is in transition
`between the two states.
`
`Note:
`
`a *radio unit“ becomes active on an assigned *traffic channel“ as soon as it can
`receive on that channel, whereas. on a *control channel* it shall not become active
`
`until it has received a codeword containing an appropriate *system identity code“.
`
`Address: A 20—bit number by which a unit or group of units is known within a *system*.
`The *address* comprises two *fields*; a 7-bit *prefix“ and a 13—bit *ident“.
`
`Address Cgmeword: A 64-bit codeword, conforming to the requirements of MP1“ 1327,
`where the first bit is set to ‘1‘. An *address codeword* is always the first codeword in any
`*message“, and defines the nature of the *message*.
`
`If the *trunking system controller“ implements such a
`Available for Customisation:
`customised function, then if the ”radio unitm implements the function it shall respond in the
`manner specified by the network operator of that *trunl-ring system controller“.
`Such
`functions will not modify existing standardised functions.
`If the radio unit does not
`understand the customised function in the context of a *system* it is currently using, then
`it shall ingnore that function. The *radio unit“ shall not infringe any of the requirements of
`section 5 of M'PT 1327.
`
`Base Station: The entirety of transmitters and receivers operated by a *trunlo'ng system
`controller“ at any one site.
`
`Call: A complete information exchange between two or more *parties" which includes one
`or more *transactions“ and may include direct user-to—user communication on a *traffic
`channel“.
`
`3-1
`
`fir? -.
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`IPR2015-00635 , p. 10
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`

`
`
`Called. Unit (or Group}: The unit, or group of units, which a “calling,unit“ identifies as the
`desired recipient(s) of a “call“. The “called unit (or group)“ retains this designation for the
`duration of the “call“ and this convention is used in messages relating to that particular “call“
`irrespective of the origin of such “messages“.
`
`Calling Unit: A “radio unit“ or “line unit“ which requests a “call“. The “calling unit“
`retains this designation for the duration of a “call" and this conventi0n is used in “messages“
`relating to that particular “call“ irrespective of the origins of such “messages“.
`
`Common Prefix Call: A “call“ where the values of the “prefixes“ in the calling and called
`“addresses“ are the same.
`“Common prefix calls“ use “short addressing“ procedures.
`
`Confirmation: A procedure employed by the “radio unit“ to facilitate the selection of an
`appropriate “control channel“ to allow a “session“ with a “system“ to be initiated or
`continued. The “confirmation“ process consists of applying prescribed tests to the signal
`content of the received “forward channel“.
`
`3.?
`
`
`
`I
`-
`
`IMP“
`
`Control Category: A designation given to the “radio unit“ during “network personalisation“
`which governs that unit‘s right of access to “control channels“ radiated by that “network“.
`A “radio unit“ shall only access a “control channel“ when the value of the LAB field in the
`“system identity code“ indicates that the unit‘s “control category“ is permitted to use that
`channel.
`
`l“d
`h
`lbgdfh
`1Ch1A“f
`dh
`C
`ontro
`an “returnc anne “ ein use ort etransmission
`orwar c anne
`I anne:
`of “messages“ conforming to MP1" 1327 with the primary purpose of enabling the *U‘Ul’lklng
`system controller“ to control “radio units“.
`
`Control Channel Acquisition Procedure: A procedure employed by the “radio unit“ to select
`an appropriate “control channel“ to allow a “session“ with a “system“ to be initiated or
`continued. The procedure consists of “hunting“ for candidate “control channels“ which are
`submitted to “continuation“ tests to determine if “acquisition“ is permitted.
`“Hunting“
`continues until such time as a successful “acquisition“ is confirmed.
`
`Data Codeword: A 64—bit codeword, conforming to the requirements of MPT 1327, where
`the first bit is set to ’0'. “Data codewords“ are concatenated to an “address codeword“ and
`
`supplement the information in the “address codeword“.
`
`Decodable: A transmitted codeword shall be considered “decodable“ if. after receipt, and
`after error correction (see Section 11.3.2.3} has been applied, a valid codeword from the
`(64,48) code defined in section 3.2.3 of MPT 1327 is formed.
`
`-
`
`Diversion: A procedure whereby a “party“ may request that future “calls“ to a particular
`called “address“ be directed to an alternative destination.
`
`Explicit Registration: A “registration“ achieved by means of an RQR message.
`
`Extended Addressing: A method which allows called “party“ details to be conveyed to the
`“trunking system controller“ when the “call“ details cannot be accommodated in a single
`
`3—2
`
`ARRIS GROUP, INC.
`
`IPR2015-00635 , p. 11
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`

`

`
`
`These called-party details may be an *address“ or addressing
`*address codeword‘.
`information in a different form (eg PSTN dialling digits].
`
`Fall—back Mode: A customised form of operation which may be used by a *network“
`suffering equipment malfunction.
`
`Field: A number of contiguous bits in a codeword which is specified in terms of the position
`within the codeword and the number of bits.
`
`Fixed Radio ilnit: A *radio unit" used with its antenna at a fixed location.
`
`Forward Channel: A radio bearer where the direction of transmission is from the "trunking
`system controller" to the *radio units".
`
`Free Format Data: Data within a codeword which. in this specification, is constrained only
`by its position and length.
`
`ident“ which is used to identify a “"message‘lr relating to a *call or
`Gateway: A *special
`transaction“ to or from a communications service outside the *system“ {eg the PSTN). For
`the purpose of this specification the interprefix *ident", IPFIXI,
`is also regarded as a
`*gateway*.
`
`Group Address: An *address* which is common to more than one unit and which, when
`nominated as the called *address“. signifies a *group call“. Units may be assigned any
`practicable number of *group addresses".
`
`Group Call: A *call* in which a *group address" is Specified as the called *party" and,
`accordingly, provides a means of communication between more than two units. The callng
`*party“ in a *group call“ may opt for a conversational mode, where all *parties* are able
`to speak, or for an announcement mode where only the caller may speak.
`
`--
`.
`-.'.-'-..-ch..;..
`
`
`Head Messaue: Single transmission of an MWUE? HEAD *address codeword“ and its
`appended *data codewords*.
`
`Hunting: A procedure employed by the *radio unit* to facilitate the selection of an
`appropriate *control channel" to allow a *session“ with a *system" to be initiated or
`continued. The *hunting“ process consists of systematic sampling of the *forward channel“
`frequencies by the ”radio unit“ until it selects and ”commits“ one of the *forward channels“,
`which together with its paired *retum channel“ is an apprOpriate *control charmel“.
`
`HuntingI Se_quence: A procedure employed by the *radio unit“ during “hunting“ which
`consists of one or more *hunting stages“. There are five described *hunting sequences“:
`
`"Resuming a control channel sequence"
`(a)
`"Single channel hunt sequence"
`(b)
`(c) "Preferential hunt sequence"
`(d)
`"Normal hunt sequence"
`(e)
`"Comprehensive hunt sequence"
`
`|
`
`r);
`
`1;)
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`ARRIS GROUP, INC.
`IPR2015-00635 , p. 12
`i
`
`
`

`

`
`
`A *hunting sequenee* is’oompleted when all *hunting stages“ appropriate to that *hunt'mg
`sequence* have been completed or, prior to this,
`if a successful *oonb'ol channel*
`*confirmation* is achieved.
`
`Hunting Stage: A procedure employed by the *radio unit* during *hunting* which consists
`of sampling all channel numbers applicable to the type of *hunting sequence“ in progress at
`a particular acquisition threshold level. A *hunting stage* is completed when all channel
`numbers applicable have been sampled and *confirmation* attempted on any candidate .
`*control chan.nels* located or may be completed prior to this if a successful *control
`channel'“ *confirmation* is achieved.
`
`'
`
`Ident: A 13-bit number used for identification purposes. Values of *ident’“ between I and
`8100 inclusive are assigned to individual units or groups (see section 8.2), in which case they
`are associated with a *prefix’“ to form a 20—bit address. Values of *ident* above 8100 are
`designated *special idents* and these are not associated with any particular *prefix*, nor is
`the *ident* value 0 (DUMMYI).
`
`is *active on a
`Idle State: A *radio unit* is in the *idle state“ on a *system* when it
`channel“,
`is receiving on an appropriate *control channel* from the *system*,
`is not
`currently within a *message“ exchange and has no current *message“ transfer requirement.
`
`Implicit Registration: A *registration* achieved by means other than an RQR message and
`associated Acknowledgement message from the *network*.
`
`m
`|
`
`|
`|
`
`Include: A procedure whereby *parties’“ may be introduced into a *call* in progress at the
`request of an existing *party* to the *call*.
`
`.
`
`is knOWn within a *system*,
`Individual Address:- An *address* by which a single unit
`allowing that unit to be uniquely addressed by that *system*. Units may be assigned any
`practicable number of *individual addresses* provided that at least one is assigned to each
`unit.
`
`saga-gal
`
`Individual Call: A *call* between a calling *party* and a single called *party*.
`
`Integprefix Call: A *call“ where the values of the *prefixes* in the calling and called
`*addresses* are different. *Interprefix cal.ls* require *extended addressing“ procedures.
`
`Item: A complete user transmission on a traffic channel by one *party“ within a *call* at the
`conclusion of which that ”party“ rests from transmission.
`It
`is possible for a *call* to -
`contain only one *item*.
`
`Line Unit (LU): A user station which is allocated an *individual address* and is directly
`connected to a *trunldng system controller“ via a medium other than that part of the radio
`spectrum to which this specification applies.
`
`Mandatory: The *radio unit* shall implement the function or facility.
`
`Message: A single
`
`contiguous data
`
`transmission which
`
`consists of
`
`a
`
`codeword
`
`3-4
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`
`IPR2015-00635 , p. 13
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`

`
`
`synchronisation sequence. an *address codeword“ and (optionally) one or more *data
`codewords“ conforming to MP? 1327'.
`
`Network: Interconnected *5ystems'.
`
`Network Personalisation: A procedure undertaken when a subscription to *network“ is taken
`out by a user whereby that user's *radio units“ are implanted with data to enable it
`to
`function correctly on that *network‘. *Radio units’“ which are required to access more than
`one *network* shall be personalised for each *network* to be accessed.
`
`Non—dedicated: A procedure which may be adopted by a *trunking system controller*
`whereby channels used by the *system“ may be flexibly allocated as *control channels“ or
`*n'affic channels“ depending on the traffic load on the *system“. When this procedure is
`employed, the current *conu-ol channel“ would normally be allocated as a *traffic channel“
`when all other channels are in use for traffic and the *control channel“ facility restored when
`possible, eg by allocating the next *uaffic channel“ to become free as a new *control
`channel“.
`
`Non-prescribed data: Any data traffic which dot-s not conform to the data protocols defined
`in MPT 1327.
`
`Normal Opegtion Mode: The operation mode of a *radio unit“ or *control channel* which
`is not in the *fall-back mode“.
`
`“ Normal Registration Mode: A *control channel* mode in which the *netw-ork‘“ will accept
`and maintain *regisrration* requests.
`
`Normal Registration Record: A *regisb’ation’“ record which has an indication that
`*network“ is maintaining the *registration“ record.
`
`the
`
`”5“”?
`
`Null Registration Record: A *registration* record which includes a NULL indicator together
`with the AREA code.
`
`Party: A source and/or recipient of information within a *call“. The term includes the
`totality of equipment at the user station and. where the context permits, the equipment user.
`A *party* may be an individual or a group.
`
`Personality: The totality of *network personalisation“ data entered into the *radio unit‘“.
`
`Portable radio unit: A portable radio unit is distinguished from any other radio unit by the
`following criteria:—
`
`the equipment covered is intended to be used only with an integral antenna, which
`may be detachable. When this equipment is used with a non‘integral antenna it ceases
`to be defined as a portable radio unit for the purpose of this specification;
`
`_
`-
`
`the maximum effective radiated power shall not exceed 5 watts;
`the equipment shall be powered by a self contained battery unit.
`
`3-5
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`IPR2015-00635 , p. 14
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`

`
`
`Erefix: The '7 most significant bits of an “address“. Normally units within a fleet will be
`allocated the same I“prefix“ since *calls“ between units and groups with the same *prefix“
`can be made without the use of *extended addressing“ procedures. A *prefix“ is Only
`relevant to *individual addresses“ and *group addresses“.
`
`Prime Registration Record: The most recently created *registration“ record held by the I
`*radio unit*. Note that the *prime registration record“ does not include timing information.
`
`Radio Unit (RU): A mobile or other user station contacting a *system* by normal land
`mobile radio in accordance with the specification.
`
`Random Access Attempt: The method by which a *radio unit* transmits an unsolicited
`*message* to the *trunking system controller“ on a *control channel“. The method requires
`that a *radio unit* repeats a random access *message“ if a response *‘message* is not
`received within a designated waiting time. Further repeats are required.
`in the absence of
`an appropriate acknowledgement, until a
`In this specification a *randOm access attempt*
`designated number of repeats is reached.
`covers the period from initiation of the *‘transacti0n* to the receipt of an appropriate
`acknowledgement or the expiry of a timeout.
`
`Read—only Memory: A storage facility within the *radio unit* which contains *network
`personalisation“ data. The contents of the *read-only memory“ cannot be modified or added
`to by the action of the *radio unit* or its user.
`It is intended that the contents of *read—only
`memory“ are placed there only during *network personalisation“ by a suitably authorised
`agent (normally a service provider).
`
`Read/Write Memog: a storage facility within the *radio unit* the contents of which may be
`modified by the *radio unit*.
`
`Ready for Communication Control (RF CC): A device or system to inform a unit of the user’s
`readiness to communicate (see section 8.3).
`
`Registration: A procedure which confirms that a *radio unit* is in a *session* on a
`*system“. The *registration“ procedures may he initiated by a demand from the *trunking
`system controller*, or at the initiative of the *radio unit*. depending on the circumstances
`of the registration.
`
`jouested Unit (or Group): A unit, or group of units, which takes part in a *‘transaction*
`initiated by the *trunking system controller“ or another *party“.
`
`Reguesting Unit: A *radio unit* or *line unit* which initiates a *transaction* with the
`*trunlcing system controlled“ or another *party‘“, via the *trunlcing system controller“.
`
`Reserved: Codewords and *fields* which are designated as *reserved* in MPT 1327 are
`intended for future phases of standardisation and shall not be used in the interim for the
`conveyance of information. *Reserved fields“ must be set to the default value specified in
`MPT 1327.
`
`ARRIS GROUP, INC.
`
`IPR2015-00635 , p. 15
`
`3—6
`
`

`

`Return Channel: A radio bearer where the direction of transmission is from _*radio units“ to
`
`the *trunlting system controller’“.
`
`Segment: For a known *transaction“, the portion of the *T~rnessage* contained in 3 *HEAD
`message“.
`
`Selected Network: The *network* which the user of the *radio unit“ has selected for the
`
`time being and which is the only *network* that the *radio unit“ may attempt to access until
`Such time as the user designates a new *selected network“. Where the *radio unit* does not
`allow the user to select from a choice of *networks" then only one *network“ shall be
`available to that *radio unit’“ for access and this *networl-t“ shall be. per se, the *selected
`network*.
`
`Session: A *session* is a period of operation associated with one *system*. A *session“ on
`a *system“ starts when a *radio unit* becomes “active on a control channel* of that
`“system*, either after switch on or after being *acrive on a control channel“ of a different
`*syst.em*. A *session" ends either when the *radio unit“ is switched off or when it starts
`its next *session*.
`
`Short Addressing: The method used when the *parties“ to a *call* can be completely
`specified by a single *prefix“ and two *idents*. This form of addressing minimises the
`signalling required.
`
`Short Data: A procedure which allows a data *message“ to be exchanged between *panies“
`. or between *parties“ and the *trunking system centroller". This procedure does not support
`*messages* which include more than four *data codewords".
`
`Short-Form PSTN Destination: A called PSTN *party“ previously agreed between the system
`operator and the user of the *calling unit“ which can be specified by a *special ident“ rather
`than the full stream of dialling digits representing the directory number.
`
`Single Segment Transaction {SST}: Short data *transaction* requiring only one *segment*.
`
`Spare: Codewords and *fields“ which are designated *spare“ are available for free use by
`*systems* (ie *system* customisation) provided that the conditions of MPT 1327 are not
`infringed. The use of *spare* codewords and *fields“ may vary from *system“ to *system'“.
`
`ngial Ident: An *ident* with a value greater than 8100. These *idents* are used for a
`variety of special purposes.
`Some of these are specified in MPT l32’r‘. others may be
`nominated by system operators.
`“Special idents* are nor associated with a *prefix“ to form
`an *address*.
`
`IPR2015-00635 , p. 16
`
`Smech gjall: A *cail* as a result of the receipt ot‘a GTC ‘message'
`to '0‘. The audio is not muted.
`
`'leiil the ‘D' *tield’“ set
`
`Standard Data: The procedure by which information exchange takes place using the data
`protocol defined in section 17 of MPT 1327.
`
`ARRIS GROUP, INC.
`
`

`

`
`
`Standard uptign: Any optional feature for which the implementation has been standardised
`in MPT 1327. Any unit implementing such an option shall
`implement it at least in the
`specified standardised manner.
`Units and “systems“ shall not
`infringe any of the
`standardised formats in MPT 1327 when implementing customised features.
`
`System: The totality of equipment required to provide the communication facilities at one _
`location, associated with one or more “system identity codes“. “Systems“ may be combined
`to form larger communications facilities.
`
`System Identity Code: A 15-bit number which identifies a “system“. This code is radiated
`on each “forward control channel“ within the “system“ (in the SYS “field“).
`
`
`T-messaoe: totality of “free-format data“ which is intended to be conveyed in a “short data“
`“transaction“.
`
`Temp_o_rar_y Registration ngjg: A “control channel“ mode in which the “network“ will accept
`but may not maintain “registration“ requests. The “radio unit“ may be required to re—
`register when the “normal registration mode“ is resumed.
`
`Temp_or_ary Registration Record: A “registration“ record which has an indication that the
`“network“ may not be maintaining the “registration“ record.
`
`Timed Registration Record: A “registration“ record held by the “radio unit“, that has been
`displaced from the “prime registration record“. The record has a timer TD associated with
`it.
`
`Traffic Channel: A “forward channel“ and “return channel“ being used primarily for user
`communications.
`
`Transaction: A complete information exchange consisting of one or more “messages“
`between a “party“ and the “trunking system controller“, or another “party“, via the
`“trunking system controller“.
`
`Trunking System Controller (TSC): The central control intelligence necessary to enable the
`trunking system to function according to MPT 1327. The “trunking system controller“ may
`control one or more “base stations“.
`
`Undefined Registration Record: A “registration“ record which has no indication that the
`“network“ may or may not be maintaining the “registration“ record.
`
`Verififi AREA code: The AREA subfield of the received “system identity code“ (SYS) used
`to verify a “control channel“.
`
`Verified 51]., code: The SEL field of the “system identity code“ (SYS) received and verified
`by a “radio unit“ from the “control channel“ on which that “radio unit“ was most recently
`“active“.
`
`ARRIS GROUP, INC.
`
`IPR2015-00635 , p. 17
`
`3-8
`
`

`

`
`
`3.2
`
`Test Conditions
`
`Unless otherwise specified, the ‘radio unit’ shall meet the requirements at :hts incantation
`under extrEme test conditions. as defined in MPT 1.12.1 senior: 2-.-l
`
`3.3
`
`General Reguirements
`
`The "radio unit“ shall not operate duplex.
`
`The Facility to switch from one *network“ to another is a ‘standard option‘.
`
`'network“ switching shall be under control of the
`it is *mandatory“ that
`If implemented,
`user. Autonomous switching between *networks* by the *radio unit' shall not be permitted.
`
`g; -A‘
`
`It shall be possible to transfer, between *network(s)* in a *radio un.it* by changing the
`*personality* (see section 6).
`
`
`
`IPR2015-00635 , p. 18
`
`ARRIS GROUP, INC.
`
`

`

`5. l .3
`
`Frequency Tolerance
`
`The centre frequency of the response of the radio receiver shall be Within l5 kHz of the
`nominal receive frequency except during channel switching.
`
`This tolerance includes crystal ageing and shall be maintained under both normal and extreme
`temperature conditions, as defined in MPT 1323 sections 2 and 3, fora period of at least one
`year, without re—adjustment.
`
`5.2
`
`Demodulation Qharacteristics
`
`5.2.1
`
`SM“.ch Sianals
`
`The speech demodulator shall have a phase demodulation reSponse characteristic. The
`permitted departure from the phase demodulation response amplitude characteristic over the
`audio frequency range 300 Hz to 2.55 kHz shall be -_l-3 dB. ie the total audio output power
`shall fit totally within the mask of figure 5. l. The radio unit shall be deemed to have passed
`this requirement if it meets the permitted departure either at the electrical connections to the
`loud speaker (with a suitable resistive load if the loudspeaker is disconnected), or acoustically.
`
`
`
`l/
`i
`y
`g
`iii/iii//////////////ii
`l.___—_
`
`1
`
`
`
`T
`6 dB
`
`L
`
`Amplitude relative
`to optimum phase
`demodulator response
`
`Eh;
`
`I!ffff//lf/lll£//////fff
`/
`.I’I
`l/
`/
`
`300
`2550
`
`1000
`
`100
`
`10000
`
`Input Frequency Hz
`
`Figure 5.1
`
`5.2.2
`
`Data Sinrials
`
`Received standard data signals have a fast frequency shift keying (FFSK) characteristic.
`Standard data modulation follows the requirements of MPT 1323, that is phase continuous
`11100 baud FFSK. with lSOO Hz representing binary ‘0' and IEllfl Hz representing hinary ’1’.
`Units shall meet the error performance requirements of Appendix A of this specification.
`
`Nore: The received peak deviation of standard data does not exceed 12.0 kHz. and is not
`less than ill) kHz. For non—prescribed data, the peak frequency deviation does not
`exceed i2.5 kHz.
`
`5-2
`
`
`
`ARRIS GROUP, INC.
`IPR2015-00635 , p. 19
`
`

`

`RECEIVER PARANIETERS
`
`The requirements of this section shall be met under normal
`MPT 1323 section 2.3, unless otherwise specified.
`
`test conditions, as defined in
`
`5. 1
`
`F rguency Parameters
`
`This section contains the frequency parameters for radio units operating in Band 111 sub—bands
`1 and 2.
`
`All radio units shall operate on any of the channels in the frequency range to which they are
`directed by network messages and shall examine and if necessary, operate on that channel,
`in that range,
`in accordance with the procedures specified in Section 9. If directed by
`network messages to any channel outside this range, radio units shall not comply with the
`messages and shall remain on the channel from which the message was sent.
`
`5.1.1
`
`Channel SpacingI and Designations for Sub—band l
`
`The channel spacing shall be 12.5 kHz. The channel designations shall be as follows:
`
`Channel Number
`
`CHAN field binary
`representation of
`channel number
`
`Radio Unit
`Receive Frequency
`
`176.5000 MHz.
`
`1000000001
`
`177.2125 MHz
`
`.
`
`1
`
`58
`
`560
`
`1111110111
`
`183.4875 MHz
`
` 5.
`
`The radio equipment shall receive over channels 58 to 560 (177.2125 MHz to 183.4875
`MHz) inclusively.
`
`5.1.2
`
`Channel spacing and designations for Sub-band 2
`
`The channel spacing shall be 12.5 kHz. The channel designations shall be as f0110ws:
`
`Channel Number
`
`CHAN field binary
`representation of
`channel number
`
`Radio Unit
`Receive Frequency
`
`200.5000 MHz
`
`0000000001
`
`201.2125 MHz
`
`1
`
`58
`
`560
`
`0111110111
`
`207.4875 MHz
`
`The radio equipment shall receive over channels 58 to 560 (201.2125 MHz to 207.4875
`MHz) inclusively.
`
`ARRIS GROUP, INC.
`
`IPR2015-00635 , p. 20
`
`5—1
`
`

`

`
`
`
`4.2.3.2
`
`Data Peak DeviatiQn
`
`For standard data modulation.
`
`Angle modulation:
`
`Nominal
`Extreme
`
`1.5 kHz i250 Hz
`1.5 kHz i500 Hz
`
`4.3
`
`Performance Parameters
`
`Radio units shall meet the requirements of MPT 1323.
`
`ARRIS GROUP, mc.
`
`IPR201 5-00635 , p. 21
`
`4-3
`
`

`

`4.1 .3
`
`Frguency Tolerance
`
`The carrier frequency of a signal transmitted by a radio unit shall be within 1.5 [(1—12 of the
`nominal transmit frequency.
`
`This tolerance includes crystal ageing and shall be maintained under both normal and extreme
`temperature conditions. as defined in MPT 1323 sections 2 and 3,