MPT132?
`
`flu Signalling Standard
`
`for Trunked Private Land Mobiha
`
`Radio Systems
`
`January was
`
`F+‘.Ev:'5=a=-1‘. 3:"-r!
`
`'»::r “fled l"h::~*.=r—r**r:*-Er
`
`"'~'_~.?r‘-
`
`P3111
`
`EXHIBIT
`EX. 1005
` (Part I)
`(Part I)
`
`EX. 1005
`
`Page 1 of 233
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`PETITIONER'S EXHIBIT 1005
`
`

`
`MP"[' 133'."
`
`
`
`&F.;':=.1:‘~.I-.._‘¢_l*5‘ '3
`
`._-'a__.E‘._1I.’_':3_-J.-‘n.[_L1E\.’G S'l'AND.-ER1) F-DR
`
`'l'RlJ.-NKED I’RI‘L-'r\'Tl"'
`
`1
`
`-V. ."-'1} ."-11‘.JB!|.l-'. R.g-1.1)J{!_§ij_'S'E'E_-.35}
`
`Page 2 of 233
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`PETITIONER'S EXHIBIT 1005
`
`

`
`{C}
`
`Crown Copgrrighl I983
`First puhlishad January 1933
`Reprinted and revised Oclober I990
`Reprinted and revised November I99]
`
`| I
`
`Alncndments issued since publicaltun
`
`Amendment
`
`Date of issue
`
`?ext affected
`
`Number
`
`Incorporated in the ve:aLon
`reprinted in October 1990.
`hmanded tax: was high1;qh:ed
`by a bar in the margin.
`
`Page 3 of 233
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`PETITIONER'S EXHIBIT 1005
`
`

`
`
`
`FUIREWDRD
`
`This standard defines the rules for communication between radio units and trunking
`system oontrollers operating in trunited private land mobile radio systems.
`
`Applications and test conditions for this standard. applicable to Band 1]], are contained in
`the following specifications prepared by the Etepamnent of Trade and Industry.
`Radio-oornmunicatiorts Agency.
`
`MPT 1343
`
`System interface specification for radio equipment to be used with
`commercial Ltunited networks opeiating in Band lit. sub-hands 1
`and ‘Z.
`
`MPT 134'!
`
`Radio interface specifiostion for commercial trunked networks
`operating in Band iii. sub-bands l and 2.
`
`MPT 1352
`
`Test schedule for the approval of radio units to be used with
`commercial Lrunkcd networks operating in Band ill. suh—bands i and
`2.
`
`I
`
`r
`
`R" h
`
`Firms intending to manufacture equipment which complies with the standard should be
`aware that certain features of the standard are subject to [PR claims.
`
`All l'irt:rts are therefore advised that they should make appropriate enquiries through
`their Patent Agenu before proceeding.
`
`Page 4 of 233
`Page 4 of 233
`
`PETITIONER'S EXHIBIT 1005
`PETITIONER'S EXHIBIT 1005
`
`

`
`INTRODUCTION
`
`DEFINITIONS
`
`EIGNELLING FDHHETS
`
`hDflRE55ING
`
`EODEHGHD STRUCTURE5
`
`CHINNEL DISCIPLINE
`
`Rfiflflflfl RECESS PRHTOCDL
`
`HEGISTERTIDN PROCEDURES
`
`BHSIC CALL PROCEDURES
`
`EHEHGENCY CALL PROCEDURES
`
`INCLUDE CALL PRQCEDUHES
`
`CALL DIUERSIUN PROCEDURES
`
`STATUS HESSHGE FFDCEDURES
`
`SHORT DITA MESSAGE PROCEDURES
`
`DATA INTERRDGATIDN PROCEDURES
`
`Section reserved Ear additinnnl nhnrt data procefiurea
`a.g. an-1:.
`
`5TAHBfiRD DATA PROCEDURES
`
`APPENDIX 1.
`
`Suggested values Io: parnnietars.
`
`APFEHUIK 2.
`
`The error control prupertxea of the codewords.
`
`APPENDIX 3.
`
`Fm algorithm for determining the codeword cmplatinn
`nequanca of 5 central channel ayata codeword.
`
`APPENDIK -1-.
`
`lm algorithm for generating field! h and B of
`the HJI.P.:K coda-ward.
`
`HPPENDIK 5.
`
`BED coding.
`
`nPPEND1x 5.
`
`Reserved to: Tim1nq of responses for standard data at A
`customised rats.
`
`APPENDIX. 7.
`
`other ideas cnnaidered during the drafting Bf section 17
`{standard data}.
`
`Page 5 of 233
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`PETITIONER'S EXHIBIT 1005
`
`

`
`J
`
`nu-'r132'r is a signalling standard for trunisd private land mobile radio
`ayaterna.
`It defines the protocol rules tor cotuunication between 1
`trunking l}PI't.fl:r|!|. controller -:T$I:] and users’ radio units.
`
`from
`The ltondard can he need to implement a wide variety cl! eynteml.
`small systems with only a tau radio channels (even ulnqlu-ohm-n-ml oyatnnn},
`through to large networks which may be forced by the interconnection of
`TSCI.
`
`The protocol offore a broad range of user facilities and sgrotem
`options. However, it is not necessary to implement all or the facilities
`available: an appropriate subset of the protocol could be implemented,
`according to the user requirements. Also,
`there in scope for customisation
`for special requlrmante, and. provision has been made for lurthcr
`standardised facilities to be added to the protocol
`in the future.
`
`The standard defines only the over-air signalling and iepoees only
`minimum constraints on system design.
`additional specification: will be
`required for specific implementations. for example.
`to define:
`
`the facilities that must be implemented
`parameter valuee
`a channel plan
`for a network. criteria for when a radio unit should register.
`
`50¢?-ififl 1-}. Gt t-hii il'|'I'-:'U|'.t|-IC|'-ii‘-|I'Ju H-i$¢fi.|‘-Iii! 531$ I-15313 Efl¢il.5.tiEi
`
`I-Phi-C31
`
`{It does not deicribo additional
`are explicitly provided by the protocol.
`facilities which may be offered in a radio unit but which do not require
`any npnciflc prcItoco1.]
`
`Section 1.2 describes some protocol featured,
`available to system diiiqneri.
`
`indicating the options
`
`section 1.] provides an introduction to the operation out the protocol.
`
`Eubeequent sections of this document contain the protocol. definition.
`In most of these sections.
`the protocol roles tor the T50 and for radio
`units are epecitled eeparateli,-, but with cross-referencing where
`convenient.
`
`Page 6 of 233
`
`PETITIONER'S EXHIBIT 1005
`
`

`
`1,]
`
`Egg; zacilitieu
`
`The facilities available to user: are outlined below.
`definition of the facilitiea. see the aectiona indicated.
`
`For a full
`
`l.§,1 zgpge of call
`
`The atandard protocol enables radio unite to make the following types
`DE call.
`
`Speech call.
`
`{See section 5.}
`
`For group
`Speech calla may be requested with normal or high priority.
`calla.
`the calling party may opt for a conversational mode, where all
`portion are able to apeak. or for an announcement mode where only the
`caller may apeak.
`
`Data call, for the transmission of non-prescribed signalling.
`[See section 9.}
`
`Parameters are available to epecify either normal or high priority
`and, Eor a group call, whether the called group members can reply.
`[Provision has been made for epecifying a standard method of data
`communication in the future}.
`
`Emergency call.
`
`[See section 10.]
`
`Parameters are available to specify either a speech or a data call
`and,
`for a group cell, whether the called group members can reply.
`Also, a radio unit may request a special mode of emergency service
`previously arranged with the ayatem;
`the TSC determines the required
`action by reference to the calling unit's addroaa.
`
`Include call.
`
`[See section 11.}
`
`a unit may requeat that another party joint the call.
`During a call.
`Thia facility may be used to implement a conference call or call
`Tranafer.
`
`Statue message.
`
`(See section 13.]
`
`Thirty-two different atatua messages may be conveyed between units.
`The meanings of
`two of these messages are prescribed as a "call-me-
`hack request" and “cancel previoua call-me-back request".
`The
`remaining thirty messages have uner—de£ined meanings.
`{status
`mesaagee can also be sent between radio unite and the T$C.j
`
`Short Data Heaaaqe.
`
`{see section 14.}
`
`Meeeaqea of up to 15¢ bite of free format data can be eent between
`units, or between units and the TSC.
`
`Page 7 of 233
`
`PETITIONER'S EXHIBIT 1005
`
`

`
` l
`
`A radio unit may re-queat a call to any or the following called partial
`[except for atatua ausea.-gel, which cannot be addraala-d to Fill‘. or PETE
`deetinatione or to groupaj:
`
`-
`
`-
`-
`+
`
`an individual radio unit or line-connected unit
`
`I group. or all unit! in the ayatee
`a PAH}! number. up to nine digits
`a PSTN number, up to 31 diqita.
`
`In addition, atatua an-aangee and ahert data eeaeagaa may be aent to the
`TEE.
`
`tha ISO may paaa a Hide variety of information to
`During cal]. sat-up,
`the caller,
`to indicate the pragreaa of the call.
`For example, it may
`indicate the reason for any delays in call aa-t-up or the raaaon for a call
`failure.
`
`A call request may be cancelled at any time.
`
`V
`
`C
`
`A radio unit may receive calls from a radio unit or line unit. or
`[except for etatue ween-gee} from a FAB: extension or the PSTH.
`In
`addition, statue neaeaqea and ehort data rueaaaqea may he received from the
`TSC. For a call from a radio unit, a line unit or the Tsc. the calling
`addreea may be supplied to the called unit.
`For a call from a PAH}:
`extension or free: the 95TH, the calling gateway is indicated as the source
`of the call but the caller‘: number
`in not conveyed to the called unit.
`
`Incoming calls may be addreaeed to the unit individually or to a group
`to which it belongs.
`A radio unit may he a member of an arbitrary number
`of groups; ita group addraaaal can he choaen independently oi its
`individual addreae.
`
`for example by
`ll radio unit may retuae to accept all incoming calla.
`meat!!! of a "hue?" or "out~o£—1rehlcle' control. or incoming calla could be
`refused selectively. depending on the neuron of the call.
`If a user does
`not with to proceed with an inccminlg call inlnedieteiy. he can indicate that
`he will call back later.
`
`systeme may be configured to alert a called individual and require him
`to indicate that he in ready, before a traiiic channel
`is: allocated for a
`call.
`
`..:l.
`
`vrt
`
`a
`
`It a radio unit dc-ea not with to receive calla. it may request that
`tuture calla addressed to it be redirected to a apeciried alternative
`destination.
`A radio unit may alaa raquaat redirection on hehali of a
`third party,
`for example, for a unit which la not equipped for cell
`diverlian. A radio unit calling a diverted party will he informed of the
`alternative deatinetion to try; it may then re-make the call automatically,
`or it may give the user the option of deciding whether to call the
`alternative deatinatlon. Sea auction 12 for the full divaraion faciii|:i.ee-
`
`Page 1-3
`
`Page 8 of 233
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`PETITIONER'S EXHIBIT 1005
`
`

`
`-2
`
`t
`
`on and raci
`
`t
`
`1.2.1 Sgatam dimensions
`
`The numbering range of the protocol accommodates:
`
`-
`-
`
`-
`
`1,n3E.3flD addreeeea per system
`IDE4 channel numbers
`
`32155 system identity codes.
`
`ol
`
`The protocol uses signalling at 1200 hitfs with Pant Frequency Shift
`Keying {FPSK} auhcarrier modulation.
`It is designed for use by two-
`fraquoncy half-duplex radio unite and a duplex TEE.
`
`The signalling for setting up call: is transmitted on a “control”
`channel.
`A Tsc can be operated using either of two control channel
`strategies: dedicated or nonudedicated.
`A dadicatad system has a control
`channel permanently available for signalling, whereas a non-dedicated
`ayatam may assign the control channel for traffic [speech or data
`communication:
`if all the other channels are in use.
`The use of I
`dedicated control channel is appropriate for a TEE with many channels.
`whereas a nonwdedicated control channel may be morn appropriate for a TSE
`with only a few channels.
`The protocol allows ths use at sithsr strategy.
`
`Broadcast msssaqss ars available to inform radio units of system
`information, such as the channels which the system may use for control
`signalling.
`
`One of the problems of mobile radio signalling systems is the clashing
`of massages from ditferent radio units transmitting at the sams time.
`The
`problems of clashing are controlled by an accasa protocol which offers high
`efficiency, stability and flexibility.
`[See section 1.3.3 and section 1.:
`
`Protection against interference is provided by labelling the
`signalling with a system identity code and,
`in some messages,
`the channel
`number.
`If heavy interference is encountered, control can be changed to a
`different channel.
`
`a customised fall-back mode of
`To cope with system malfunction,
`operation may be defined by the system designer.
`
`;.z.: Call handling
`
`The protocol is designed for use by systems which queue calls that
`cannot be set up immediately,
`for example.
`if no channel
`is currently
`available for lfflffifi.
`
`is assigned for a call to an individual radio
`Before a traffic channel
`unit, nna Tsc checks that the called unit is in radio contact,
`in order to
`avoid wanted channel assignments.
`It may also check that the radio unit's
`operator is ready for the call,
`to avoid a traffic channel being aefiigned
`to an unmanned unit.
`
`Page 9 of 233
`
`PETITIONER'S EXHIBIT 1005
`
`

`
`Call maintenance signalling in defined tcr prenpt release cl! traffic
`channel: at the end of a ccmreraaticn. or in can ccauunlcaticn in lolt
`during a call.
`is-an nuctlun 1.3.5 a.I:n'.I auction 9.:
`
`he a precaution against fraudulent no of I eylten by an unauthcrleed
`radio unit.
`the 15!: may at any time lnetrcct a radio unit to tcanlnlt it!
`unlqut iirial. numbnr; compariean at
`tha received serial number Hit}: the
`expected value will easier.
`in cm datactlcn of fraudulent uaara.
`[sac
`auction 15.}
`
` i
`
`Thi ltandard laavea acopl for variclul multl-lite Hidi-l.I.'lI ccnrcraga
`technique: In: be used. Eur axampla:
`
`-
`-
`-
`
`aynchrcncuefquaei-nynchrnncua up-acaticn
`a separate control channel at each lite
`In single control channel shared by time diviniun.
`
`includes a raqlltraticn facility to alalat tha-
`The pratnccl.
`implementaticn cf rnultl-alta ayatasua a:n.d. natwcrka cl racu a radio unit can
`inform the 15-: cf ite lc-cation aa it acme between sites er systems.
`[The
`ayatem identity code dintlngulahea the signalling from different lites and
`ayateclej.
`The standard dcflnea aignalling prccedurea for registration
`{auction 3].. but the criteria for registration will be ayatemrdependent.
`
`A TSC can broadcast information tn aaeist radio unit: hunting for a
`central channel when they roam fcr example. it can anncunce the channel:
`which may he uactl for ccntrcl by itaelf c: by ‘race an adjacent altaa.
`
`Page 10 of 233
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`PETITIONER'S EXHIBIT 1005
`
`

`
`li§______E1fi§_EQ_fl£!;£§I_2£QEEE21_lE:Etl
`
`This section provides an introduction to the operation of the protocol
`which, bacluna af its scope and flexibility,
`is necessarily complex.
`The
`section outlines the control channel structure.
`the random access prntncal
`and some message exchange procedures tor call set-up.
`
`This section is intended only as a guide: it should not be regarded as
`a protocol specification. Readers Ihould refer to the main body of the
`standard for the complete and precise definition.
`
`01 Chen
`
`'
`
`r
`
`u a
`
`The signalling for letting up calls is transmitted on I "control"
`channel.
`Time on the control channel is divided into slots of duration
`
`:12a hits}. and one signalling message can be sent in each slot.
`106.? ms
`The basic control channel signalling structure is illustrated in Figure
`1-1.
`
`[base station transmit frequency]
`Signalling on the forward channel
`nominally continuous, with each slot comprising two 64-bit codewords,
`usually:
`
`is
`
`A control Channel System codeword tccficj.
`The ccsc identifies the syste to radio unite and provides
`synchronisation for the following ‘address’ codeword.
`
`An “address” codeword.
`
`at lflflrnuu 4'|4'Il"94'\-Ill‘!-Fl"
`
`in i"Hn 'Fi1'E" r-nu-|nI.II-FH I-I‘
`
`:II'IIII-
`
`Innnunl-In
`
`Page 11 of 233
`
`PETITIONER'S EXHIBIT 1005
`
`

`
`
`
`The message: elnt on I control channel may he olaaaified as rollers-re:
`
`lllnha rnnenaqnn
`
`fisqoeots
`
`“Ahoy” meeeagoe
`
`-r Sent by the TEC to invit-I and control
`random al:-roll.
`- sent by radio units to roquoat
`callaftraneactiona.
`- sent by the T31: to demand a response from an
`addressed radio unit.
`
`- sent by the T9-C and by radio uoita.
`Acknowledgments
`- Sent by the TEI: to allocate trtffio I:hI:nni1s.
`Go To Chennai rannnagna,
`single sddrsss an-sesagsn - Currsntly aenr. only by radio units.
`Short data rannnagel
`— soul: by the 1'31: and by radio units.
`Hiecellanooua nanaagoa
`- Sent by the Tao for eyatem control.
`
`some usee of these maaaag-an are illustrated in the following sections.
`
` nml
`
`. O
`
`.3.
`
`ne -of the prohlmns of mobile radio signalling Iohenua is the clan?! of
`messages from different radio units transmitting at the name tioa.
`In thin
`atanclard...
`the prohlerna of clashing are oontrollad by a random acoaaa
`protocol which is haoo-d. on llotted aloha, with a euperirapoaed framing
`structure.
`The aooeoo protocol can he used to oininiaa aooaae delays,
`ensure: atabiiity and maintain peak throughput under heavy traffic loads.
`
`The basic principle of the accuse protocol is described with refinance
`to Figure 1-2, which illuatrat-an aiqnalling on a control channel.
`The T5:
`tranamita a aynchroniaation snaaaago linoioatad by sin in Figure 1-2} to
`invite radio unite to mend random access oaaaaqaa.
`The Mil 111-aaaaga
`oontairll a parameter {E} which indicates the number ot following tioaalora.
`oonotituting a frame,
`that are available for aroeea.
`If a frame la already
`in pron:-reee when a. user initiates a call.
`the radio unit may lend ite
`random accuse meaaage in the next elot. Otherwise the unit waits for a
`frame to be otarted and than chooses a random alot from the frame for its
`manage. A unit wishing to and a repeat tranarliaoion after an unaurcasaful
`message {corrupted by fading or clashing} chooa-in again from a new frame.
`
`radio unite
`
`T5‘? to
`
`Radio unite
`to TSC
`
`frame
`
`frame
`
`
`
`Page 12 of 233
`Page 12 of 233
`
`PETITIONER'S EXHIBIT 1005
`PETITIONER'S EXHIBIT 1005
`
`

`
`1.1
`
`I D
`
`thfl
`
`I.
`
`DID
`
`ECBBI
`
`IDIDCO
`
`The main features of the access protocol are as follows:
`
`The TSC can monitor activity on the control channel and can optimise
`the system performance by varying the framelenoth to prevent excessive
`clashing and to minimise access delays. Figure 1-3 illustrates an
`example of random access control.
`
`The signalling overhead for random access control is kept small by
`allowing ncknouiedqements and Go To channel messages to contain the
`framalength parsmnter {N}. so that frames can be marked without
`requiring an explicit Aloha message. Eor example, see Figure 1-3.
`
`the TSC may transmit messages that demand a
`During a frame,
`response from a specified radio unit. These outbound messages
`inhibit random access in the following slot, and so reserve the
`slot for the unit's reply.
`
`d}
`
`The Tao may reserve Eramas for:
`
`-
`
`specific types of call request, by means of specific Aloha messages
`[for instance,
`the Aloha message ALHE invites emergency calls
`only]:
`
`-
`
`subsets of the radio unit population [subdivision by address}.
`
`TEE ta
`radio unite
`
`Radio units
`to TSC
`
`RQS1
`RQSE
`
`R951
`
`RQS2
`
`\__#f 1
`H___f
`frame frame
`
`The TSC detects the clashing of requests RQSJ and R952. and
`marks a longer frame {with message ALH[2j].
`The radio units
`repeat their requests and,
`in this example. choose diiferent
`slots.
`Each request is acknowledged in the following slot.
`
`ALH{Dj does not mark a frame.
`
`R¢KQ{1: acknowledges a request and also marks a new frame.
`
`In the absence of clashing,
`
`the framelongth may he reduced.
`
`Fig. 1-3
`
`Example of
`
`random access gontro;
`
`Page 13 of 233
`
`PETITIONER'S EXHIBIT 1005
`
`

`
`LA
`
`1|. unit ruddrele ie a 20*-l:~it number colnprieinq two fieidez a 1'-bit
`prefix and a 13-bit idont.
`[lIoreI.I.l.I.3r, all unborn of I fleet will be
`allocated the name prefix.)
`The division into prefix end idcnt allow! most
`massage: to accumnndatn tun ldtlrlnn-an,
`the I:aLI.ing and callnd party, by
`including the prefix only once.
`For initmca.
`I:-I11 rcqueltn and Go To
`channel mlitagcl contain two itlnnti Ind only -tuna prnfin.
`
`For a call to a unit with the name pn.-afix, a request nnnngn containe
`all tho information monetary to make the call. Honour, for a call to a
`unit with In different prefix,
`the call dotaile cannot be acct:-nunodatod in a
`single: lddriuin codeword:
`this type of call requires the one of ‘extended
`ecldreeeing-" prociduran {cl do Io-ml PAS! Ind moat PE-TH calls] .
`
`B
`
`I
`
`IE
`
`1'].
`
`The precise lignnlling required for I call daplntll on the type of call
`and on the design of tho TEE;
`[tho Itandard. dcal not prescribe the TSC
`algorithms: . This section contains some examples of tuning: exchange
`fiiquirncel. Note that. although not shown in the examples. mesaagon will be
`retransmitted in the cane of corruption by propagation error: or collision.
`
`Exan1p1mI of meeenge exchange aequenoee for call out-up are precentod
`in section: 1.3.5.1 to 1.3.5-3. Thllfl examples show control. channel
`signalling, for:
`
`call rcq-ueete
`instruction to sand extended address information
`
`checking availability of radio units
`traffic channel allocation.
`
`signalling in also an-out on an allocated traffic channul, for call
`maintenance and call clan:-down.
`For
`inatancu:
`
`all
`
`To assist call maintenance. a radio unit send: a ‘Fresnel ott-
`nsonnaga at thu and of arch up-each transmission.
`The system may
`aleo require the unit to start each speech tranunilaion with I
`"Preeeel On" rnonnaqn and to and call maintenance masaagis
`periodically within the tranornianion.
`
`cu: both units in an. individual
`The calling unit Ln. a group call,
`call, canal.
`"D:i.|Icu:1rJ.|h'.:I'." massage: to indicate and-of-channel-use
`when the user goon on-hook or aqui-uralunn-..
`
`Thu 1'3»: eende CLEAR messages to clear down a call. [after receiving
`a valid Disconnect manage or it a time—out. has expired].
`
`However.
`
`the examplee do not cover traffic channel. eiqnailinq.
`
`The final example [section 1.3.5.4] illustrates the trannmiaaiun of a.
`ohort data mfiflinga. Thin type of transaction dual not use a traffic
`channel: it requires control channel nignnlling only.
`
`Page 14 of 233
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`PETITIONER'S EXHIBIT 1005
`
`

`
`;;§J5I1
`
`Example: radio unit ¢a11s_a qggug
`
`Figure 1-4 illustrates a message sequence on a control channel to set
`up a group call between radio units with the same prefix.
`
`The sequence includes call request and channel allccaticn signalling.
`(For group calls. an availability check on the called units is not
`performed.)
`In this example, all traffic channels are in use when the call
`is requested and se the cell
`is queued.
`
`TSC to RU5
`
`RUE te T50
`
`\___r’
`\__.I'
`frame frame
`
`‘\___.r‘
`'‘»__.I'
`frame frame
`
`General Aloha invitation {one-slot
`
`frame}.
`
`The calling radio unit transmits its request, complying
`with the random access protocol.
`
`informing the
`The TSC acknowledges the E95 message.
`callLng unit that the call has been queued.
`
`the TS: sends the
`when a traffic channel is available.
`Go To channel comand. addressed to the calling unit and
`called grout; this message instructs the units to switch
`to the traffic channel for their conversation.
`In this
`example the ETC is repeated.
`for added reliability.
`
`Fig. 1-4
`
`Comman1prefix_g;oug call
`
`for
`Alternative acknowledgements from the TSC are available if,
`Lnstance,
`the call request is invalid or the system is overloaded.
`
`is available when a group call is requested then
`If a traffic channel
`the mac may omit
`the HERD and send the GTE command immediately.
`
`In this example the GTE message is repeated immediately. However.
`repeat messages may be delayed for other signalling.
`
`Page 15 of 233
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`PETITIONER'S EXHIBIT 1005
`
`

`
`
`
`rigura 1-5 illuatzatua a lounge uuguanca an a. cc:-1t:o1 channal to not
`up a call. hat-neon tutu radio unit: with tht auto pralix. Th: iagu-anca
`intludll call ruqunat. availability chick and channa]. alln-citinn
`signalling.
`
`TEE tn RIJI
`
`Run to '.'I."'-SC
`
`H
`
`Erma
`
`I‘-.
`
`lrana
`
`IR!
`frame
`
`1.
`
`2.
`
`.hLl-I
`
`: General aloha. invitation {three-slat fruuj.
`
`R05 : Random. access call request.
`
`3. M-ll‘
`
`1 Availability chuck manage
`-
`acknowladglzl the ME Inuaaqa
`-
`dimantla a riap-nnla ft't:n the callatl radio unit
`{th-nniby checking uha-that the called unit
`is in radio contact}
`inhibits randnn l.f:l:ElI in the next slat.
`
`-
`
`4.
`
`5.
`
`ACK : Acknuwladgnnant {run tha callad. radin unit,
`sent
`in the reserved slot.
`
`GTE : Go To Channel maaaaga inatructlng hath radio unita to
`awitch to the apacifiad traffic channel for their cail.
`In this axamplan tha GTE in repeated,
`for added rallahility.
`
`the called unit in in radio contact and therefore
`In thin -uampiu.
`If tha called unit cannot b-I contacted, the ‘PSC may
`rllpontlu to tha M-IT.
`indicate the fniiuru to thi calling unit by uncling acknowledgment acme.
`
`the T50 chucks only that the
`In both this and the iclinuing armpit.
`cal. lad. unit.
`in in radin contact bafura allocating a traffic channai. The
`TSC may also check whither than calla-d Inn: in raady; if he in nut,
`the unit
`raaporuzlt with acknowledgment next and talent action ta alert him. Than,
`uhun than ulnar
`in ready to receive the call,
`the unit may an-nd a Itatua
`mifltllga {RQQ1 to inform the TEE.
`
`in
`Inaiaag-B in these example: is used at a "dummy" manage,
`The hLH::-D]
`links carrying nc signalling raliw-tut to that axmple.
`In practice. than
`Blots may be ua-atl for signalling Eur anuthar call, at {or broadcast
`messages which contain inicrnaticn about system paranratatai.
`
`Page 1-11
`
`Page 16 of 233
`Page 16 of 233
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`PETITIONER'S EXHIBIT 1005
`PETITIONER'S EXHIBIT 1005
`
`

`
`1.3.5.3
`
`figgglg; gadio unit calls a unit with a different prefix
`
`Figure 1-5 illustrates a message sequence on a control channel to let
`up a tall between two radio units with different preiixen.
`
`The sequence includes call request, availability check and channel
`allocation signalling {as in the previous example}. However.
`this soquonca
`has an sxtrs phase: after receiving the RQS massage,
`the TSC sands AHYC to
`invite the calling unit to transmit the full called address. Also,
`separate ETC massages instruct the two units. because GTC contains only one
`prefix.
`
`TSC tfi Rfls
`
`K
`
`trams
`
`I
`
`\
`
`frame
`
`I \
`
`J
`frame
`
`General Aloha invitation {four-slot frame].
`
`Random access request for an intsrprsfix call.
`[The request contains the calling unit's address
`tprsfixfidsnr}. but the called ident is set to a
`special "gateway" idsnt to indicate that extended
`addressing procedures are neoded.:
`
`short data invitation message
`-
`acknowledges the R95 message
`w
`instructs the calling unit to send the callsd address
`inhibits random access in the next slot.
`
`H
`
`Single Address Message from the calling radio unit.
`containing the address tprsfixfidentl of the called unit.
`
`Availability check message demanding a response from
`the called radio unit.
`In this example.
`the availability check is a
`ainglercadewnrd massage l.e. the address of the
`calling unit is not supplied.
`
`Acknowledgement from the called radio unit.
`
`so To channel message instructing the called radio unit
`to switch to the specified traffic channel for the call.
`
`so To Channel message instructing the calling radio unit
`to switch to the specified channel for the call.
`
`1-6
`
`Inter refix lndivi ual
`
`Page 17 of 233
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`PETITIONER'S EXHIBIT 1005
`
`

`
`
`
`...
`
`1e
`
`d
`
`a
`
`Figure 1-1' illuntratea a massage sequence on a control. channel [or
`aending a anert data message from one radio unit to another raclie unit.
`this example,
`the data rnaaaaga cerupriaae an addreea codeword and two
`appended data ca-dlwarde; {each of the data eoaeuerda contain: 016 hit: of
`tree format data}.
`
`In
`
`the T51‘: instructs
`the radio unit aerlda its IIHJ1-Iililt:
`In the sequence.
`the unit to aend the data message.
`forwards the data manage to thi called
`unit and then indicates the success ef the traneaetidn to the calling unit.
`
`hLH
`
`:01
`
`1'
`
`Ac!
`
`Ill
`
`ACE
`
`ii}
`
`ALI-I
`
`(11
`
`‘PS6 to RUB
`
`1
`
`FILE
`
`11':
`
`3
`
`RLH .H.HYC
`
`E11
`
`Rue t 5 ‘I513
`
`OCOOOOOOOOOOOOIOOIOOOOO
`
`frame Erame
`
`frame
`
`lrarne frame
`
`E
`
`-§
`
`3.
`
`RHYC
`
`on
`
`General Aloha invitation [one-elet Erarrvep.
`
`Random access request to transmit a short data message.
`[The request indicates the number of
`timeslete required
`for the data manage:
`in this case.
`two slat-5.}
`
`Short data invitation meaaaqe
`r
`acknowledge: the nut: meeaage
`-
`instruct! the calling unit to eend the data
`me-usage Ln. the next ten elete.
`
`4.
`
`HEAD 4- data.
`
`5.
`
`HEAD + data
`
`:
`
`:
`
`The calling radio unit send: its Ihert data
`rneaaage to the TED.
`In this example the
`message cunprieee an address codeword (HEAD;
`and tn-re appended data to-dewurds.
`
`The T5: forwards the short data message to
`the called radio unit.
`
`6.
`
`‘I.
`
`hcli
`
`-. Acknowledgement
`
`from the called unit - meafiage accepted.
`
`SACK
`
`IZO indicate
`: Acknowledgement Bent to the calling unit
`that the called unit has accepted the data nneaeaqe.
`In this example the TSC Lllnediatelf repeats the
`ACE rneeeage. [or added reliability.
`
`Pi.
`
`.
`
`-1
`
`e t
`
`ata meeea e
`
`Page 1-13
`
`Page 18 of 233
`Page 18 of 233
`
`PETITIONER'S EXHIBIT 1005
`PETITIONER'S EXHIBIT 1005
`
`

`
` .
`
`
`
`n - Horde appearing u.it.h.Ln asterisks Hlthin these definitions are
`defined terms.
`{sq -defined term‘:
`
` : A *radio unit’ in ‘active on a channel‘ when. on
`that channel, it is enabled to respond to 'oaaeagea* addreeeed
`to it, or in transmitting. or ia in transition between these
`tun states.
`
`E953 - a traclio unit‘! becomes active on an assigned Itrafrio
`channels as soon as it oan receive on that channel, whereas. on
`a *oontrol ohanne1' it anal]. not herona active until it has
`
`raoaluod a codeword oonta.inLng an appropriate *syaI:em identity
`I..".DdB".
`
`figdregsr A 20-bit number by which 3 unit or group of units is
`known -within a -eystemi.
`The uddrenai comprises two 'fis1dB*..'.
`a 1-bit 1-pretixfi and a 13-bit *l.dent".
`
` : in 54-bit codeword, conforming to the rEIqu.Lre1I1.a|1t6 of
`this atandard, where the first hit in set to '1'.
`in ‘address
`C-odawvordi
`is alhraya the firm; codeword in any ‘message’, and
`define: the nature of the message‘.
`
`transmitters and receivers operated by a
` : The entirety of
`*trunking system controller’ at any one site.
`
`Call: A complete information exchange between two or more ‘parties’
`which includes one or more Itranoartionavl and may include
`dilffitt l.II'B1"1'.D".1EEE GOfllII'|.1.:I'I.iCl1'.iOl1 on H. *tl.‘lffiE G1'll.:|'Il'|.El'u
`
`I19; Q-gong]: The unit, or group of units, which a. -calling
`Callfi Qgit
`unit’ identifiaa an the desired reoipientta} of a.
`'oal1'. The
`*ca1l.ed unit. {or group)‘ retains this designation for the
`duration of a |oal1* and this convention is used in messages‘
`relating to that particular ‘Brill’.
`irrespective of the origin
`of ouch tmeasagss-.
`
` = A 1-radio unit‘ or ‘line unit‘ which request I ‘call’.
`The ‘calling unit’ retain: this designation for the duration of
`a -call‘ and this convention is used. in Inaeaaageat relating to
`that particular tc-all‘ irrespective of the origins of such
`*mesaa-gee‘.
`
`in the
` ; A *oa1l* where the values of the *p-refines‘
`caillng and called 'flddrEEE!BI"‘ are the lame.
`-Common prefix
`calla‘ use the Ishort addreaaing' procedures.
`
`Centre
`
`E. -forward channel’ and ‘return channel‘ being used
`nno n
`I:
`Eor the transmission or wneeaageel oontorming to this Itandard
`with the primary purpose of enabling the -trunking system
`controller‘ to control radio units.
`
`a. 541-bit codeword. conforming to the requirements of
`Data gflewor :
`this standard, where the first hit is net to ‘E|I'.
`‘Data
`code-woruir are concatenated to an ‘address co-duets" and
`supplement
`the information in the ‘address’ cs-tliwurlih
`
`Page 2-1
`
`Page 19 of 233
`Page 19 of 233
`
`PETITIONER'S EXHIBIT 1005
`PETITIONER'S EXHIBIT 1005
`
`

`
`taitem: The whole. or a part of. a 'Tmeaaage‘. A dataitem may not
`include more than 52 data codewords.
`
`Qecodeable: A transmitted codeword shall he considered ‘decodeahle-
`if, after receipt. and after any error correction {if used} has
`been applied. a valid codeword {rem the code defined in
`section 3.2.3 of this standard is formed.
`
`request that future
`Diversion: A procedure whereby a ‘party‘ may
`‘calls‘ to a particular called address be redirected to an
`alternative destination.
`
`Egtgnded ngdresging: 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 ‘address codeword‘.
`These calledeparty details may be an 'address‘ at addressing
`information in a different form [eg PSIN dialling digits].
`
`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.
`
`Poggard Chafing]: A radio bearer where the direction of transmission is
`form the ‘base station‘ to ‘radio units‘.
`
`Fragment: A message which is either the whole of a ‘dataiteml or those
`codewords of a ‘dataitem‘ for which repetition has been
`requested by the receiving station.
`
`in this standard,
`E;gg_£g;m§§_Q§E§: Data within a codeword which,
`constrained only by its position and iength.
`
`is
`
`Gatewax: A -special ident- which is used to identify a ‘message-
`relatinq to a ‘call‘ or ‘transaction'
`to or from a
`communications service outside of the ‘system‘ {eg the PSTN}.
`For the purposes of this standard the interprefix ‘ident-.
`IPF1xI,
`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 cell‘. Units may be assigned an? practicable number of
`‘group addresses‘.
`
`Gggup Cs]]: A ‘cs11‘ in which a ‘group address‘ is specified as the
`called -party‘ and, accordingly. provides a means or
`communication between more than two units.
`The calling -party‘
`in Q ‘group cell‘ may opt for a conversational mode. where all
`'psrties‘ are able to speak. or for an announcement mode where
`only the caller may speak.
`
`A 13-bit number used for identification purposes. Values of
`‘ident- between 1 and 8100 inclusive are assigned to individual
`units or groups,
`in which case they are associated with a
`‘prefix‘ to form a 20-bit ‘address‘. Values of ‘ident‘ above
`3100 are designated ‘special idents' and these are not
`associated with any parti