the Office of Communications
`1, Julia Fraser, am Head of Knowledge Management at
`(“Ofcom”), an independent regulator for the communications sector in the United Kingdom
`located in London.
`1 was previously responsible for maintaining publications at
`the
`Radiocommunications Agency starting in the Spring of 1990. The Radiocommunications
`Agency, a public agency of the United Kingdom, was formerly an: Executive Agency of the
`Department of Trade" and Industry and merged with several other regulatory bodies in the United
`Kingdom to form Ofcom in 2003.
`
`I am the custodian for the attached document:
`
`MPT 1343: Perfirrmance Specification System Interface Specification for radio units to
`be used with commercial irurzked -networks operating in Band III sub-bands 1 and 2
`
`I certify that the attached is a true and correct copy from the records of Ofcom and has been in
`Ofcom’s possession (and previously that of the RA) since its original release in 1991.
`
`Julia Fraser
`
`Head of Knowledge Management
`Office of Communications
`
`23 A13? zen”
`
`EXHIBIT
`
`ARRIS GROUP, INC., lPR2015-00635, Ex. 1036, p. 1 of 214
`
`

`
`ARRIS GROUP, INC., IPR2015-00635, Ex. 1036, p. 2 of 214
`
`

`
`C
`
`my3eMon6tHIm6LLwS
`rad
`ith co
`in units to be used w
`trunked networks operat
`mg 111‘
`sulrbands 1 and 2 L
`
`i
`
`January 1988
`
`Rev
`
`ise
`
`d and reprinted Septemb
`
`,HflC,IPR2015
`
`-00635,
`
`Ex
`
`. 1036
`
`9
`
` 3of2I4
`
`P
`
`

`
`Crown Copyright 1988
`
`First Published 1988
`
`Revised and reprinted September 1991
`
`ISBN 1—870837—41—X
`
`ARRIS GROUP, INC., |PR20f15-00635, Ex. 1036, p. 4 of 214
`
`

`
`FOREWORD
`
`This specification contains the minimum‘ performance requir'ements.additional to MP1‘ 1323
`to be met by radio units used with eommercialtmnked networks operating in Band -HI, sub~
`bands 1 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 tmnlred radio network to
`another without having to change radio equipment.
`
`it should be noted that some aspects of the specification remain relatively unproven
`operationally. All reasonable efforts havebeen made to ensure accuracy, but it may prove
`necessary to amend some sections in the light of practical experience. An example is the
`way that the radio u‘ni.t. caters for time-shared" and discontinuous control channels;
`
`Inteligtugl Propgrty. Right;
`
`Firms ‘intending to manufacture equipment which complies with the specification should be
`aware that certain features of the specification are subject to IPR claims.
`
`All firms are therefore advised that they should make appropriate enquiries through
`their Patent Agents before proceeding.
`
`ARRIS GROUP, INC., |PR2015-00635, Ex. 1036, p. 5 of 214
`
`

`
`CONTENTS
`
`SCOPE
`
`ASSOCIATED DOCUMENTS
`
`GENERAL
`3. I
`3.2
`
`Definitions
`Test Conditions
`
`3.3
`
`General Requirements
`
`TRANSMYITER .P RS
`
`Frequency Parameters
`4.1
`4.2 Modulation Characteristics
`4.3
`Performance Parameters
`
`RECEIVER PARAMETERS
`
`5.1
`5.2
`
`5.3
`5.4
`
`Frequency Parameters
`Demodulation Characteristics
`
`Mufing
`Performance Parameters
`
`STORAGE REQUIREMENTS
`6.1
`Introduction
`
`6.2
`6.3
`
`Types of Memory
`Summary of Storage Requirements
`
`SECURITY
`
`MAN—MACHINE INTERFACE
`8.1
`Confidence Indications
`8.2
`Call Number Convention
`
`8.3
`
`Ready for Communication Control
`
`CONTROL CHANNEL ACQUISITION AND RETENTION
`9.1
`Introduction
`
`Radio Unit Storage Requirements
`9.2
`Control Channel Acquisition Procedures
`9.3
`Leaving a Control channel
`9.4
`9.5 Multiple Control Channels
`
`REGISTRATION
`10. 1 General
`
`Single Registration
`10.2
`10.3 Multiple Registration
`
`ARRIS GROUP, INC., |PR2015-00635, Ex. 1036, p. 6 of 214
`
`

`
`I-fil-kn-4I—-I-—-A'."‘?“"’.°'t"°[\Jn--r-—t>—np—-
`
`.&.‘.L,x.‘)ts..)n-—-r--L-—-
`
`I I
`
`""“"“P—‘P"P"">—“
`
`'11.
`
`CALL PROCESSING‘
`11.1
`Introduction
`11.2 Definitions
`
`Signalling Formats
`11.3
`11.4 Addressing
`11.5 Codeword Structure
`
`11.6 Channel Discipline
`Random Access Protocol
`
`1-I)-su—as.—sy_.«p-at--an-o..u........y--o;...c,.uap-at-amp-..n_ap--\@x--.1\10\L’IJhb3{\3”"‘$
`
`,é.—-:-o
`
`b--p-A)-A
`
`Registration Procedures
`Basic Call Procedures
`
`Emergency Cail Procedures
`Include Call Procedures
`Call Diversion Procedures
`
`Status Message Procedures
`Short Data Message ?rocedures
`Data Interrogation Procedures
`Not Used
`
`Standard Data procedures
`
`12.
`
`NON-STANDARD DATA INTERFACE PROVISION
`
`12.1 Muting
`12.2 Maladjustment
`12.3
`Facilities
`
`12.4 Data Call Handling
`12.5
`Facilities
`
`13.
`
`FALL-BACK MODE
`13. 1
`Introduction
`
`13.2
`13.3
`13.4
`
`Storage Requirements
`Entering Fall-back Mode
`Procedures in F2111-back Mode
`
`13.5 Leaving Fall-back Mode
`13.6 User Initiated Change of Newaork
`
`14.
`
`SHORT DATA ON THE CONTROL CHANNEL USING RQC
`14.1
`Introduction
`
`14.2 Message Format
`14-3 The use of Control Fieids for STF = '1‘
`14-4
`Procedure for Radio units
`
`146 An Example of the Procedures for Extended Data Messages
`
`14-I7
`
`APPENDIX
`
`ERROR PERFORMANCE REQUIREMENTS
`Definition
`Method of Measurement
`Limits
`
`ARRIS GROUP, INC., IPRZO15-00635, Ex. 1036, p. 7 of 214
`
`

`
`TIMING AND DEFAULT PARAMETERS
`Default Parameters
`
`Timing Parameters
`
`Clarification of Radio Unit Operation on Time Shared
`Control Channels
`
`Recommendation for Radio Unit Behaviour once the
`
`Comprehansive Hunt Sequence has been entered
`
`ARRIS GROUP, INC., |PR2015-00635, Ex. 1036, p. 8 of 214
`
`

`
`1.
`
`SCOPE
`
`This specification covers the minimum performance requirements for radio
`1.1
`units used with commercial trunked networks operating in Band III, sub—bands l and 2.
`It
`covers:
`
`signalling requirements based upon the standard MP1‘ 1327.
`
`MPT 1343 is designed to be read in association wiih MPT 132?.
`
`radio frequency requirements, where they are additional
`MP1‘ 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.
`
`ARRIS GROUP, INC., lPR2015-00635, Ex. 1036, p. 9 of 214
`
`

`
`2.
`
`ASSOCIATED DOCUMENTS,
`
`MPT 1.317 (1981)
`
`Code of practice for the transmission of digital infonnation over land
`mobile radio systems.
`
`MPT 1318 {$1986}
`
`Engineering memorandum: Trunkod systems in the land rnobiie
`service.
`
`MPT I323 (1937)
`
`Angle modulated -radio equipment for use at base and mobile stations
`in the private mobile radio" service operating in the frequency band
`174-225 MHz.
`
`MP1‘ 1327 (I988)
`
`A signalling standard for tmnl-zed private land mobile radio systems.
`
`MPT 1331 (1987)
`
`Code of practice for radio site engineering,
`
`MP1‘ 1347 (1988)
`
`Radio interface specification for commercial
`operating in Band BI sub-bands 1 and 2.
`
`rrunked networks
`
`MPT 1352 (1991)
`
`Test schedule for the approval of radio units to be used with
`commercial trunked networks operating in Band III sub-bands 1 and 2.
`
`ARRIS GROUP, INC., IPR2015-00635,. EX. 1036, p. 10 of 214
`
`

`
`GEWERAL
`
`Def‘
`
`‘
`
`Section numbers appearing between 1!
`numbers within MPT 1327.
`
`23 delimiters in this specification. ’refer to section
`
`Words appearing between asterisks in this section are defined terms.
`
` : The condition obtained by the successfut completion of the ‘control channel
`acquisition procedure* for a control channel which allows a radio unit to‘ transmit on that
`channel.
`
`Agqujsitign Authgrig_n'9_r_t 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 channeh‘ whether the *radio unit* is authorised to access on that
`*control channel*.
`
`Active on a Channel: A *radio unit"‘ is *active on a cliannel* when, on that channel, it is
`enabled to respond to *messages* addressed to it, or is transmitting, or is in transition
`between the two states.
`
`Note: a "'radio tmit* 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 *fieids*; a 7-bit *prefix* and a 13~bi't *ident*.
`
`Aggrgs Qgdeword: A 64-bit codeword, conforming to the requirements of MPT 1327,
`where the first bit is set to ’l’. An *-address cotieword* is always the first codeword in any
`*message*, and defines the nature of the *message"‘.
`
`If the *trunlcing system controil_er* implements such a
`Available for Customisation:
`customised function, then if the *radio unit* implements flue function it shall respond in the
`manner specified by the network operator of that ‘trunking 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 MPT 1327.
`
`Base Station: The entirety of transmitters and receivers operated by a *trunking system
`controliefl‘ at any one site.
`
`gall: A complete information exchange between two or more *parties"‘ which inciudes one
`or more *transactions* and may include direct user-to-user communication on a *traffit:
`channe1*.
`
`ARRIS GROUP, INC., lPR2015-00635, Ex. 1036, p. 11 of 214
`
`

`
` : The unit, or group of units, which a “ca'l_li:ng,unit* identifies as the
`desired recipienfls) of a *c'a1l"‘. The *called unit (or-.gr'oup)* retains this designation for the
`duration of the *call* and this convention is used in messages relating to that particular *c'a3l*
`irrespective of the origin of such *messages*.
`
`galling flnit: A "radio unit* or *line u_ni't* which requests a "‘call*. The *calling unit*
`this designation for the duration ‘of a "'call* and this convention is used in -*messages*
`relating to that particular "fcall* irrespective of the origins of such "-‘messages*'.
`
` : -A *cai1‘.'“where the values of the *prefi.xes* in the calling "and called
`*addresses* are the same. ~*Cornmon prefix calls* use ‘short addressi'ng* procedures.
`
` : A procedure employed by the *radio unit* to facilitate the selection of an
`appropriate *control_ ?c_hanne1"‘ to-al1_ow a *session* with a *system* to be initiated or
`continued. The *confirrnation* process consists of applying prescribed tests to the signal
`content of the received *forward channel‘:
`
`Qgntrol Category.._: A designation given to-the *radio unit* during *_networlc 'person.alisation*
`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 categor-y* is-pennitted to use that
`channel.
`
`Control gihannel: A ‘forward channel* and *return channel* being used for the transmission
`of *messages* conforming ‘to MPT. 1327 with the primary purpose ofenabling the *trunking
`system controller* to control *radio units*.
`
`Control gzhannel Acquisition Prgurez A procedure employed by the *radio unit* to select
`an appropriate *co_ntr'ol 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 *confi-rmation* tests to determine if *acquisition* is permitted.
`*1-lunting*
`continues until such time as a successful *acquisition* is confirmed.
`
`Em cggwor : A 64-bit codeword, conforming to the requirements of MPT 1327, where
`the first bit is set -to ‘O’. *Data codeword?‘ are concatenated to an ‘address codeword* and
`
`supplement the infomiation in the *address codeword*.
`
` : A transmitted codeword shall be considered *clecodabIe* if, after receipt, and
`after error correction (see Section 11.3.2.3) has been applied, a valid codeword from the -
`854,48) code defined in section 3.2.3 of MPT 1327 is formed.
`
` : A procedure whereby a ?"party* may request that future *calls°" to a particular
`called “‘address* be directed to an alternative destination.
`
`A *registration* achieved by means of an RQR message.
`
`Extended Agidressing: A method which allows called '*party°" details to be conyeyed to the
`*tmnking system controller“ when the *call* details cannot be accommodated in a single
`
`3-2
`
`ARRIS GROUP, INC., |PR2015-00635, Ex. 1036, p. 12 of 214
`
`

`
`These called-party details may be an *address* ‘or addressing
`‘address .codeword*.
`information in a different form (eg PSTN dialling digits).
`
`Fali-back Mode: A customised form of operation which may be used by a *network*
`suffering equipment malfunction.
`
`Field: A number of contiguous bits inacodeword which is-specified in terms of the position
`within the codeword and the number of bits.
`
`Fi;_e_x_l Radio unit: A *radio unit* used with its antenna at a fixed location.
`
`Fgrsgard Channel: A radio bearer where the direction of transmission is from the *trunking
`system controller" to the ‘radio units‘.
`
`Fry Format Data: Data within a codeword which, in this specification, is constrained only
`by its position and length.
`
`gateway: A *special ident* which is used to identify a "‘mcssage* relating to a ‘call or
`transact.ion* 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 addrcsses*.
`
` : A *ca1i"‘ in which a *group address* is specified as the called *party* and,
`accordingly, provides a means of communication between more than two units. The calling
`*party* in a *group call* may opt for a conversational mode, where all *paru'es* are able
`to speak, or for an announcement mode where only the caller may speak.
`
`I-lead Message: Single transmission of an MPTl327 HEAD *address codeword* and its
`appended *data codewor_ds*.
`
`Hunting: A procedure employed by the ‘radio unit* to facilitate the selection of an
`appropriate *eontrol channe1"‘ to allow a *scssi<'>n* with a *system* to be initiated or
`continued. The *hunting* process consists of systematic sampling of the *forward chan'ne1*
`frequencies by the *radio unit* until it-selects and "‘cont'mns* one of the *forward channels‘:
`which together with its paired *return channel* is an appropriate ‘control channel*.
`
`Hunting ggquence: A procedure employed by the ‘radio unit* during *hunting* which
`consists of one or more *hunti.ng stages*. There are five described *hunting sequences*:
`
`(a) "Resuming a. control channel sequence"
`(b) "Single channel hunt sequence"
`(c) “Preferential hunt sequence“
`(d) "Normal hunt sequence“
`(e) "Comprehensive hunt sequence"
`
`3-3
`
`ARRIS GROLIP, |NC., |PR2015-00635, Ex. 1036, p. 13 of 214
`
`

`
`A *hunting sequence*isfcomp1et_edV.when.Vall *hunting*stages* appropriate to that *hunting«
`sequence“ have been completed or, prior to this,
`it‘! a successful *control channel*
`*confirmation* is achieved.
`
` : A procedure employed by the *radio unit‘ -during *huntin'g* which consists
`of sampling all channel numbers applicable to the type of *hunting sequence* in progress at
`a particular acquisition threshold‘ level. A *h_unting stage?‘ is completed when all channel
`numbers applicable have been sampled and *confirmatio'_n* attemptedvon any candidate
`*control channels* located or may be completed ‘prior to this if a successful *'control
`channel* *confirrnation*' is achieved.
`‘
`
`Ldgnt: A 13-bit number used for identificatiompurposes. Values of *ident* between 1 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 *spec'ial idents* and these are not associated with any particular *prefix*, nor is
`the *ident* value 0 (DUMZMYI).
`»
`
`Idle State: A *-radio unit*- is in the *idle state* on a *system‘* when iris *active on a
`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?"‘.
`
`Include: A procedure whereby *parties* may be introduced into a *call*' in progress at the
`request of an existing *party* to the *call*.
`
`Individual Address: An "‘address* by which a single unit is known within a *system*,
`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.
`
`Individual
`
`all: A *call* between a calling *party* and a single called *party*.
`
`Interpref’; Call: A *call* where the values of the *prefixes* in the calling and called
`*addresses* are different. *Interprefix cal1s* 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 *trunking system controller* via a medium other than that part of the radio
`spectrum to which this specification applies.
`
`Mandatog: The *radio unit* shall implement the functionvor facility,
`
`Massage: A single contiguous data
`
`transmission which consists of a codeword
`
`3~4
`
`ARRIS GROUP, INC., lPR2015-00635, Ex. 1036, p. 14 of 214
`
`

`
`synchronisation sequence, an ‘address codeword‘ and (optionally) one or more *data
`codewords“ -conforming to MP1‘ 1327.
`
` : Interconnected **systems"‘.
`
`Network gergnalisatig‘n: A procedure undertaken when a subscription to *networlc* 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*. *Radlo units* which are required to access more than
`one *networlc‘* shall be personalised for each *networl_<* to be accessed.
`
`Eon-degicatgz 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
`‘'‘traffic channels“ depending on the traffic load on the “systcm*. When this procedure is
`employed, the current *control channel* would normally be allocated as a *traffic channel*
`when all other chahnels are in use for traffic and the *control channel* facility restored when
`possible, eg by allocating the next *traffic channel* to become free as a new *control
`channel*.
`'
`
`Non-prescribed data: Any data traffic which does not conform to the data protocols defined
`in MPT 1327.
`
`Normal Omrgtign Mg; 1 The operation mode of a *radio unit* or °-‘control ohannel* which
`is not in the *fall-back mode*1
`
`Normal Regstration Mode: A *control channel* mode in which the *nctworlr* will accept
`and ‘maintain *registration* requests.
`
`Normal Registration Record: A *regishation* record which has an indication that the
`"‘network“‘ is maintaining the *registration* record.
`
`Null Registration Record: A °“registrarion* record which includes a NULL indicator together
`with the AREA code.
`
`Barty: 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.
`
`Persgngl_jty_: The totality of *network personalisation* data entered into the *radio uni t*.
`
`Eagle ragig 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
`
`ARRl_S GROUP, INC., lPR2015-00635, Ex. 1036, p. 15 of 214
`
`

`
`Egg: The '7 most. significant bits of an *address*. Normally units -within at/fleet will be
`allocated the same ""p'tefix“' since *ca1ls*
`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’-.
`
`grime gggisfltign Record: The most recently" created "‘registration* record held by the .
`*radio’ unit*. Note that the *prime‘registration. record"‘ does not include timing information.
`
`gacfioflrgg (RU): A mobile or other user station contacting a *system* by normal. iand
`mobile radio in accordance with the specification.
`
` : The method by which a *radio unit* transmits an unsolicited
`*message* to the *trunking system oontro11er* 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 acknowiedgement, until a
`_
`designated number of repeats is reached.
`In this specification a *random access attempfl‘
`covers the period from initiation of the *transaction* to the receipt of an appropriate
`acknowledgement or the expiry of a timeout.
`
`Rgggnlg Memggg: A storage facility within the *radio unit* which contains ‘network
`personalisatiom‘ 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 personalisatiorfi‘ by a suitably authorised
`agent (normally a service provider).
`
`Read/Write Memory: a storage facility within the *radio unit* the contents of which may be
`modified by the ‘*radio unit*.
`
`Bad}; for Cornrmmimtion Qontrol (RFCC): A device or system to inform a unit of the user’s
`readiness to communicate (see section 8.3).
`
`Registmtion: A procedure which confirms that a *radio unit* is in a “‘session* on a
`*system*. The *registration* procedures may be initiated by a demand from the *tnmking
`system controller‘; or at the initiative of the *radio univ‘, depending on the circumstances
`of the registration.
`
`Rmugggtg Unit (or group): A unit, or group of units, which takes part in a *transaction*
`by the *trunking system controller“ or another *party*.
`
` ; A *radio unit* or *line unit* which initiates a *transaction* with the
`*trunking system controiier‘ or another *party*, via the *trunking system controller’.
`
` : Codewords and *fields* which are designated as “‘reserved* in MP1“ 1327 are
`intended for future phases of standardisation and shall not be used in the interim for the
`conveyance of information. *Reserved fie1ds* must be set to the defauit value specified in
`M171“ 1327.
`
`ARRIS GROUP, INC., |PR2015-00635, Ex. 1036, p. 16 of 214
`
`

`
`Retgm g;1_m__n’gt: A radio bearer where the direction of transmission is from fradio units* to
`the *trunking system eontrollerfi
`»
`
`Segment: For a known *transaetion*, the portion of the *'I’-message‘ contained in a *1-IEAD
`message*.
`
`fielected 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 *se1ected 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 *uetwork* shall be, per se, the ‘selected
`network*.
`
`Essimz A "‘session* is a period of operation associated with one "‘system*. A *session* on
`a *system* starts when a ‘radio uni?‘ beocrnes- *at':tive on a control channel‘ of that
`"‘system*, either after switch on or‘ after being ‘active on a control channcI* of a different
`*system*. 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 he compietely
`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 *parties*
`or between *parties* and the ‘trunking system controller*. This procedure does not support
`*messages* which include more than four *data codewords-*.
`
`Shgrt~Form P§TN Destination: A calied PSTN ‘party"‘ previously agreed between the system
`operator and the user of the *calling un.it* which can be specified by a *speciai ident* rather
`than the full stream of dialling digits representing the directory number.
`
`Single fiegment Transactign (§$§f): Short data *tran.saction* requiring only one *segment*.
`
`$233: 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*.
`
`§1&ial Idem: An *ident* with a value greater than 8100. These "‘idents* are used for a
`variety of special purposes. Some of these are specified in MP’? 1327, others may be
`nominated by system operators.
`‘Special idents"‘ are not associated with a "‘prefix* to form
`an *address*.
`
` : A '‘‘call* as a result of the receipt of a GTC ’~‘rnessage* with the ‘D’ *fie1d* set
`to ‘O’. The audio is not muted.
`
`gtandard Data: The procedure by which information exchange takes place using the data
`protocol defined in section 17 of MPT 1327.
`.
`
`3-7
`
`ARRIS GROUP, INC., IPR2015-00635, Ex. 1036, p. 17 of 214
`
`

`
`Any optional feature for which the implementationhas been standardised
`‘in MPT 1327. Any unit implementing such an-option shall implement it at least in the
`specifiedi standardised manner. Units and *systems* snail not
`infringe any of the
`standardised formats in MP1‘ 1327 when implementing customised -features.
`
`fimtflz 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.
`
` : A 15-bit number which identifies a *system*. This code is radiated
`on each *forward control ohanne1* within the *system* ‘(in the SYS *fielri*).
`
` : totality of *free-format data* which is intended to be conveyed in a *short data*
`'*transaction*.
`
` : A *contro1channel* 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.
`
`Temmig Rggiggtion Rflrd: A *rcgistration'* record which has an indication that the
`*network* may -not be: maintaining -the *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.
`
` : A “forward channel* and *return channel* being used primarily for user
`communications.
`
` : A complete information exchange consisting of one or more *messages“‘
`between a "‘party“‘ and the *trunl<ing system controller-"‘, or another "‘party"‘, via the
`"‘trunking system controller*.
`
`Trunking gystem gggntgoller (TSC): The central control intelligence necessary to enable the
`trunking system to functionlaccording to MPT 1327. The *trunking system controller“ may
`control one or more *basc stations*.
`
`flnggfinfi Rgistratign Rggrgz A *registration* record which has no indication that the
`*network* may or may not be maintaining the *registration* record.
`
` : The AREA subfield of the received *system identity code* (SYS) used
`to verify a *control channel.*.
`
`Vgrifieg 511. fig: The S11, 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*.
`
`3-8
`
`ARRIS GROUP, INC., |PR2015-00635, Ex. 1036, p. 18 of 214
`
`

`
`3.2
`
`Test Conditigg
`
`Unless otherwise specified, the *radio unit* shall meet the requirements of this specification
`under extreme test conditions, as defined in MPT 1323 section 2.4
`
`3.3
`
`General Rgguirements
`
`The “‘radio unit* shail not operate duplex.
`
`The facility to switch from one *network“‘ to another is a *standard option*.
`
`If implemented, it is *mandatory* that *network* switching shall be under control of the
`user. Autonomous switching between *networks* by the *radio unit* shall not be permitted.
`
`It shall be possible "to tmnsfer, between *ne(work(s)* in a *radio unit* by changing the
`*personality* (see section 6).
`
`ARRIS GROUP, INC., IPRZO15-00635, Ex. 1036, p. 19 of 214
`
`§
`
`.
`
`E» 2,3
`
`Eg
`
`

`
`5.1.3
`
`Fmugncy Tolerance
`
`The centre frequency of the response of the radio receiver shall be within 1.5 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 MP1’ 1.323 sections 2 and 3, for a period of at least one
`year, without readjustment.
`
`5.2
`
`lgmgxigglatign Qharacterigticg
`
`5.2.1
`
`Spich Kgignals
`
`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 :3 dB, ie the total audio output power
`shall fit totally within the mask of figure 5.1. The radio unit shall be deemed to have passed
`this requirement if it meets the permitted departure either at the electrical connections to the
`loudspeaker (with a suitable resistive load if the loudspeaker is disconnected), or acoustically.
`
`i
`l
`//////////////////f////
`
`/////////////////////H
`
`/ I
`
`1000
`
`2550
`
`Input Frequency Hz
`
`Amplitude relative
`to optimum phase
`demodulator response
`
`T
`6 dB
`I
`
`5.2.2
`
`Data Signals
`
`Received standard data signals have a fast frequency shift keying (FFSK) characteristic.
`Standard data modulation follows the requirements of MP’? 1323, that is phase continuous
`I200 baud FFSK, with 1800 Hz representing binary ‘O’ and 1200 Hz representing binary ’ 1’.
`Units shall meet the error performance requirements of Appendix A of this specification.
`
`Note: The received peak deviation of standard data does not exceed 12.0 kHz and is not
`less than ii .0 kHz. For non-prescribed data, thepeak frequency deviation does not
`exceed _-_i-_2.5 kl-Iz.
`
`5-2
`
`ARRIS GROUP, INC., |PR2015-00635, Ex. 1036, p. 20 of 214
`
`

`
`5.
`
`RECEIVER PARAIVIETERS
`
`The requirements of -this section shall be met under normal test conditions, as defined in
`MPT 1323 section 2.13-, unless. otherwise specified.
`
`5.1
`
`Fr en P
`
`'
`
`"tersr
`
`This section contains the frequency parameters for radio units operating in Band III sub-bands
`l 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‘ un-its shall not comply with the
`‘messages and shallremain on the channel‘ from which themessage was sent».
`
`5.1.1
`
`Channel gpacing and Designations for Sub—band 1
`
`The channel spacing shall be 12.5 kHz. The channel designations shall be as follows:
`
`Channel Number
`
`CH-AN field binary
`representation of
`channel number
`
`Radio Unit
`Receive Frequency
`
`176.5000 MHz
`
`1000000001
`
`177.2125 MHz
`
`1 ’
`
`53
`
`550
`
`11111-10111
`
`183.4875 MHz
`
`The radio equipment shall receive over channels 58 to 560 077.2125 MHz to 183.4875
`MHz) inclusively.
`
`5.1.2
`
`Qhannel spacing and designations for Sub-band 2
`
`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
`
`200.5000 MHZ
`
`0000000001
`
`201.2125 MHZ
`
`1
`
`58
`
`560
`
`0111110111
`
`207.4875 MHZ
`
`The radio equipment shall receive over channels 58 to 560 63.01.2125 MHz to 207.4875
`MI-Iz) inclnsively.
`.
`
`ARRIS GROU_P, lNC., |PR2015-00635, Ex. 1036, p. 21 of 214
`
`

`
`4.2.3.2
`
`m3a1L'k£xiati.<2n
`
`For standard data modulation.
`
`Angie.modulatio'n': Nominal
`Extreme
`
`1.5 kHz 3325.0 Hz
`1.5 kHz -3500 Hz
`
`4.3
`
`Pg"rfonnanee rgeters
`
`Radio" units shall meet the requirements of MPT 1323.
`
`ARRIS GROUP, INC., IPR2015-00635, Ex. 1036, p. 22_ of 214
`
`

`
`4.1 .3
`
`Fre_q uency Toletgagg
`
`The carrier frequency of a_ signal transmitted by a radio unit shall be within 1.5 kHz o