3 Interface Protocol and Signaling Flow 49

8/12/2019 3 Interface Protocol and Signaling Flow 49

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Interface Protocol and

Signaling Flow

Version 3.00

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Contents

Chapter 1..................................................................1

WCDMA UTRAN System Archetecture..........................1

UTRAN Architecture..........................................................1

Explanation Related to RNS...............................................2

UTRAN Common Protocol model.........................................3

Chapter 2..................................................................7

WCDMA Interface Hierarchy.......................................7

Control Plane and User Plane.............................................7

Access a!er and Non"access a!er....................................#

Chapter ..................................................................!

Interface an" #r$t$c$%...............................................!

Protocol $%er%ie&............................................................'

RRC Connection Setup...........................................................'

Net&or( Re)istration Process................................................11

Connection Release Process..................................................13

Protocol Related to *nter+ace Uu.......................................1,

Uu *nter+ace protocol architecture..........................................1,

Status o+ RRC Protocol.........................................................21

Some Explanations..............................................................22

Protocol related to *nter+ace *u.........................................23

*U inter+ace architecture.......................................................23

Protocol Structure o+ *u *nter+ace...........................................2-

Some Explanations..............................................................27

RANAP Process....................................................................2'

Protocol related to *nter+ace *ur........................................31

unction and Structure o+ *nter+ace *ur...................................32


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/C0 rame Protocol o+ *nter+ace *ur.......................................32

RNSAP Process....................................................................32

Protocol Related to *nter+ace *u......................................3-Node o)ic odel..............................................................3,

NAP Process......................................................................37

Cell Setup Process..........................................................-4

CS Call $ri)ination lo& 5RRC Setup on CC06.....................-1

CS Call $ri)ination lo& 5RRC Setup on /C06....................-2

CS Call Termination lo&.................................................-3

Release lo& in CS /omain CN $ri)inates..........................--

Release lo& in CS /omain UE $ri)inates..........................-,


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*nside UTRAN9 the inter+ace et&een RNCs is *nter+ace *ur.

*n addition9 the inter+ace et&een UTRAN and UE is *nter+aceUu.

E14lanation Related to RNSRNS 5Radio Net&or( Sus!stem6; The )eneral name +or oneRNC and all Nodes it mana)es.

SRNC 5Ser%in) RNC6; The RNS connectin) &ith CN is calledSRNS and the RNC o+ RNS is called SRNC.

DRNC 5/ri+t RNC6; *n the case o+ so+t hando%er o+ C/A9 UEcan use se%eral RNSs. i)ure 2sho&s the relation o+ SRNS and

/RNS.

F I # U R $ ) SRNS AND DRNS

SRNS

Core Network

Iu

DRNSIur

UE

Cells

Se%eral lin(s can exist inside one UE at the same time. The userdata to access /RNS is sent to SRNS +rom /RNS %ia *nter+ace*ur. /RNC &on


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Chapter 1 C/A UTRAN S!stem Archetecture

2TRAN Co66on Proto#ol

6odeli)ure 3sho&s the )eneral protocol model +or UTRAN *nter+aces9and descried in detail in the +ollo&in) suclauses. The structureis ased on the principle that the la!ers and planes are lo)icall!independent o+ each other. There+ore9 as and &hen re=uired9 thestandardisation od! can easil! alter protocol stac(s and planesto +it +uture re=uirements.

F I # U R $ * UTRAN C % M M % N PR% T % C% ' M% D$ '

A44li#ationProto#ol

%ataStrea6+s-

ACAP+s-

Trans4ortNet8or$

a9er

P9si#al a9er

Si:nallin:;earer+s-

Trans4ort2ser

Net8or$Plane

Control Plane 2ser Plane

Trans4ort2ser

Net8or$Plane

Trans4ort Net8or$Control Plane

Radio

Net8or$a9er

Si:nallin:;earer+s-

%ata;earer+s-

0ori>ontal9 The Protocol Structure consists o+ t&o main la!ers9

Radio Net&or( a!er9 and Transport Net&or( a!er. All UTRANrelated issues are %isile onl! in the Radio Net&or( a!er9 and

the Transport Net&or( a!er represents standard transporttechnolo)! that is selected to e used +or UTRAN9 ut &ithoutan! UTRAN speci+ic re=uirements.

?ertical9 UTRAn +alls into the +ollo&in) - planes; control plane 9

user plane 9 TN control plane 9 TN user plane.

Control plane

The Control Plane *ncludes the Application Protocol9 i.e.RANAP9 RNSAP or NAP9 and the Si)nallin) earer +or

transportin) the Application Protocol messa)es.

Amon) other thin)s9 the Application Protocol is used +or

settin) up earers +or 5i.e. Radio Access earer or Radioin(6 in the Radio Net&or( a!er. *n the three plane

structure the earer parameters in the Application Protocolare not directl! tied to the User Plane technolo)!9 ut arerather )eneral earer parameters.

The Si)nallin) earer +or the Application Protocol ma! or

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*nter+ace Protocol and Si)nalin) lo&

ma! not e o+ the same t!pe as the Si)nallin) Protocol +orthe ACAP. The Si)nallin) earer is al&a!s set up ! $@actions.

User plane

The User Plane *ncludes the /ata Stream5s6 and the /ataearer5s6 +or the /ata Stream5s6. The /ata Stream5s6 isarecharacterised ! one or more +rame protocols speci+ied +or

that inter+ace.

TN control plane

The Transport Net&or( Control Plane does not include an!Radio Net&or( a!er in+ormation9 and is completel! in the

Transport a!er. *t includes the ACAP protocol5s6 that isareneeded to set up the transport earers 5/ata earer6 +or the

User Plane. *t also includes the appropriate Si)nallin)

earer5s6 needed +or the ACAP protocol5s6.The Transport Net&or( Control Plane is a plane that actset&een the Control Plane and the User Plane. The

introduction o+ Transport Net&or( Control Plane ma(es itpossile +or the Application Protocol in the Radio Net&or(Control Plane to e completel! independent o+ thetechnolo)! selected +or /ata earer in the User Plane.

hen Transport Net&or( Control Plane is used9 the transportearers +or the /ata earer in the User Plane are set up in

the +ollo&in) +ashion. irst there is a si)nallin) transaction !the Application Protocol in the Control Plane9 &hich tri))ersthe set up o+ the /ata earer ! the ACAP protocol that isspeci+ic +or the User Plane technolo)!.

The independence o+ Control Plane and User Plane assumesthat ACAP si)nallin) transaction ta(es place. *t should e

noted that ACAP mi)ht not e used +or all t!pes /ataearers. *+ there is no ACAP si)nallin) transaction9 theTransport Net&or( Control Plane is not needed at all. This isthe case &hen pre"con+i)ured /ata earers are used.

*t should also e noted that the ACAP protocol5s6 in theTransport Net&or( Control Plane isare not used +or settin)

up the Si)nallin) earer +or the Application Protocol or +orthe ACAP durin) real time operation.

The Si)nallin) earer +or the ACAP ma! or ma! not e o+the same t!pe as the Si)nallin) earer +or the Application

Protocol. The Si)nallin) earer +or ACAP is al&a!s set up !$@ actions.

TN user plane

The /ata earer5s6 in the User Plane9 and the Si)nallin)earer5s6 +or Application Protocol9 elon) also to TransportNet&or( User Plane. As descried in the pre%ious suclause9the /ata earers in Transport Net&or( User Plane aredirectl! controlled ! Transport Net&or( Control Plane durin)

real time operation9 ut the control actions re=uired +or

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Chapter 1 C/A UTRAN S!stem Archetecture

settin) up the Si)nallin) earer5s6 +or Application Protocolare considered $@ actions.

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C h a p t e r )

WCDMA Interface(ierarch

Hi&h%i&hts' 8rasp the concepts o+ UTRAN control plane and user plane

Bno& aout the protocols o+ UTRAN control plane

8rasp the concepts o+ access la!er and non"access la!er

Control Plane and 2serPlanePurpose o+ the control plane;

Control the radio access earer and the connection et&een UEand the net&or(

Transmit messa)es o+ non"access la!er transparentl!.

Purpose o+ user plane;

Transmit the user data %ia the access net&or(.

*n UTRAN9 each inter+ace o+ RN has user plane and control

plane.

The control plane protocols o+ each inter+ace on RN include;

*nter+ace *u; RANAP

*nter+ace *ur; RANSAP

*nter+ace *u; NAP

*nter+ace ;Uu; RRC protocol

The user plane data and control plane data o+ all RN elon) toTN user plane. TN control plane protocol is ACAP9 elon)in)

to SAA 5Si)nallin) AA6 o+ AT.

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A##ess a9er and Non"

a##ess a9erThe concepts o+ access la!er and non"access la!er are related tothe communication o+ UE and CN. The access la!er ears theupper la!er ser%ices %ia the SAP 5Ser%ice Access Point69 assho&n in i)ure -

F I # U R $ + A CC$ S S ' A. $ R AN D N% N / ACC$ S S ' A. $ R

2TRAN2E CN

A##ess Stratu6

Non"A##ess Stratu6

Radio+2u-

Iu

Radio4roto"#ols+'-

Radio4roto"#ols+'-

Iu4roto#ols

(2)

Iu4roto#ols

(2)

Example +or non"access la!er;*n AR %oice telephone 5the callin) part!69 there are se%eral UE"CN si)nalin)9 &hich are the control plane si)nalin) o+ non"accessla!er. These si)nalin) are encapsulated in RRC protocol +irst and

then transmitted to RNC transparentl!. RNC decodes thesesi)nalin) out o+ RRC messa)es9 encapsulates into RANAP9 and

then transmits to CN transparentl! %ia RANAP.

UERNC C Ser%ice Re=uest

RNCUE Authentication Re=uest

UERNC Authentication Response

RNCUE C Ser%ice Accept

UERNC SETUP

RNCUE Call Processin)

RNCUE Alertin)

RNCUE Connect

UERNC Connect Ac(no&led)e

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C h a p t e r *

Interface and Protocol

Hi&h%i&hts 8rasp the t!pes o+ protocols at UTRAN radio side

8rasp hierarch! o+ the protocols

8rasp the status o+ RRC protocol

Proto#ol O


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F I # U R $ , RRC C % NN$ CT I % N S$ T UP

5. Downlink Synchronistion

UE Node B

Serving RNSSer!in"

RNC

DC#$%&DC#$%&

'llocte RNI

Select * nd 2

+r,eters

RRCRRC*. CCCH- RRC Connection Reuest

NB'&NB'&/. Rdio ink Setu+ Res+onse

NB'&NB'&

2. Rdio ink Setu+ Reuest

RRCRRC0. CCCH- RRC Connection Setu+

Strt R1

Strt 1

. 'C'& Iub Dt rns+ort Berer Setu+

RRCRRC3.DCCH- RRC Connection Setu+ Co,+lete

DC#$%&DC#$%&4. U+link Synchronistion

/etailed descriptions;

At the e)innin)9 UE does not ha%e dedicated channel resources9so it sends the messa)e o+ RRC connection setup on CCC05RAC06.

RNC allocates RNT* and a%ailale resources to UE9 decides toallocate /C0 to UE9 and in+orm Node to allocate /C0 to UE

&ith NAP messa)e o+ DRadio in( Setup Re=uest.

Node allocates resources to UE9 starts to recei%e9 and returnsDRadio in( Setup Response to RNC.

At this time9 there are no resources o+ the transmission net&or(

on *nter+ace *u9 so ACAP o+ SRNC sends the messa)e o+ ERF5Estalish Re=uest6. This messa)e contains AA2 indin) */.

This */ can help Node to ind the data transmission earer on*nter+ace *u and /C09 and sends the messa)e o+ EC 5EstalishCon+irm6 ac( to RNC.

Node and SRNC per+orm the +rame s!nchroni>ation %ia

D/o&nlin( S!nchroni>ation and DUplin(. S!nchroni>ation in/C0 +rame protocol9 and then to per+orm the / transmission.

Althou)h /C0 resources on *nter+ace *u are read!9 UE does not(no& it. There+ore9 SRNC sends the messa)e o+ DRRC

Connection Setup to UE on CCC0 5AC069 and in+orms UE o+related parameters.

Accordin) to related parameters in DRRC Connection Setup9 UE



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Chapter 3 *nter+ace and Protocol

con+i)ures the ph!sical la!er. Node sets up /C0 success+ull!and sends the messa)e o+ DRRC Connection Setup Completeac( to SRNC on /C0.

Net8or$ Re:istration Pro#ess

i)ure Gsho&s the +lo& o+ UE re)istration +or CS domain.



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F I # U R $ 3 U$ '% CAT I % N UP DAT $


A+ter RRC connection sets up9 UE estalishes /C0. UE needs to

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chan)e in+ormation &ith CN 5this is si)nalin) interaction o+ non"access la!er and readers o+ non"access la!er si)nalin) can re+erto H3I69 that is9 to initiate the ocation Update. This messa)e isencapsulated in the RRC messa)e o+ *nitial /irect Trans+er9

&hich is sent to RNC ! UE.RRC o+ RNC recei%es the messa)e o+ *nitial /irect Trans+er9decodes the hi)h"la!er messa)es +rom it9 and sends to RANAPentit!. RANAP entit! &ill encapsulate the messa)e o+ DocationUpdate into *nitial UE essa)e and sends it to CN throu)h SCCPentit!. At this time9 there is no si)nalin) connection et&eenRNC and CN9 so the messa)e o+ D*nitial UE essa)e o+ RANAP is

encapsulated into SCCP connection setup massa)e 5CR6 andsent to CN.

SCCP entit! o+ CN recei%es the SCCP connection setup re=uest.*t returns SCCP connection setup messa)e 5CC6 to RNC and

sends the RANAP massa)e contained in CR messa)es to RANAPentit!. RANAP entit! decodes the messa)e o+ Docation Update

o+ NAS la!er and sends it to the related modules on NAS la!er+or processin).

A+ter recei%in) the messa)e o+ Docation Update +rom UE9 CNinitiates the authentication. The si)nallin) durin) the

authentication process is transmitted transparentl!. RNC andNode onl! trans+er et&een UE and CN9 ut do not process

messa)es. essa)es o+ DAuthentication Re=uest andDAuthentication Response are NAS messa)es9 too. The! are

encapsulated into the messa)e o+ D/irect Trans+er o+ RANAPand RRC.

A+ter the authentication chec( on UE is passed9 CN initiates thesecurit! mode process. *t is to encr!pt and protect the data and

si)nalin) o+ the air inter+ace. essa)es o+ securit! mode are nottransmitted transparentl! and it needs RNC processin).

A+ter the authentication chec( is passed and the securit! modeis initiated9 CN sends the messa)e o+ Docation Update Accept

to UE9 in+ormin) that UE re)istration succeeds. This messa)e istransmitted transparentl!.

Conne#tion Release Pro#ess

i)ure 7sho&s the connection release process.

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F I # U R $ - RRC C % NN$ CT I % N R $ ' $ AS $


A+ter ocation Update completes9 CN initiates *u release process.

SRNC sends the messa)e o+ RRC connection release to RRC.

UE sends the messa)e o+ RRC connection release ac( to RNC.RNC in+orms Node to delete R and a+ter deletin) R9 Node

replies to RNC.

RNC in+orms CN that returns *u release completes %ia RANAP.

CN initiates to release SCCP lin( and RNC returns the messa)eo+ SCCP release con+irmation.

RNC initiates to release the transmission resources on *nter+ace*u.

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Proto#ol Related to Inter=a#e

2u2u Inter=a#e 4roto#ol ar#ite#ture

i)ure #sho&s the architecture o+ Uu *nter+ace protocol.

F I # U R $ 0 ST RUCT UR$ % F RRC PR% T % C% '

L3

o"icl

Chnnels

rns+ort

Chnnels

C$+lne si"nllin" U$+lne inor,tion

L2/MAC

L1

RC

DCNt7C

L2/RLC

8'C

RC

RCRC

RC

RCRC

RC

Du+liction !oidnce

UuS boundry

B8C L2/BMC

control

&DC&&DC& L2/PDCP

DCNt7C

Rdio

Berers

RRC

The Uu inter+ace is la!ered into three protocol la!ers;

the ph!sical la!er 516

the data lin( la!er 526

net&or( la!er 536.

a!er 2 is split into +ollo&in) sula!ers; edium Access Control5AC69 Radio in( Control 5RC69 Pac(et /ata Con%er)enceProtocol 5P/CP6 and roadcastulticast Control 5C6. a!er 3

and RC are di%ided into Control 5C"6 and User 5U"6 planes.

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P/CP and C exist in the U"plane onl!.

*n the C"plane9 a!er 3 is partitioned into sula!ers &here thelo&est sula!er9 denoted as Radio Resource Control 5RRC69

inter+aces &ith la!er 2 and terminates in the UTRAN. The next

sula!er pro%ides J/uplication a%oidanceJ +unctionalit!. *tterminates in the CN ut is part o+ the Access Stratum itpro%ides the Access Stratum Ser%ices to hi)her la!ers. Thehi)her la!er si)nallin) such as oilit! ana)ement 56 andCall Control 5CC6 is assumed to elon) to the non"accessstratum..

The +unctions o+ RC;

The RC sula!er pro%ides ARF +unctionalit! closel! coupled &iththe radio transmission techni=ue used. There is no di++erence

et&een RC instances in C and U planes.The UTRAN can ere=uested ! the CN to pre%ent all loss o+ data 5i.e.

independentl! o+ the hando%ers on the radio inter+ace69 as lon)as the *u connection point is not modi+ied. This is a asicre=uirement to e +ul+illed ! the UTRAN retransmission+unctionalit! as pro%ided ! the RC sula!er.0o&e%er9 in caseo+ the *u connection point is chan)ed 5e.). SRNS relocation9streamlinin)69 the pre%ention o+ the loss o+ data ma! not e

)uaranteed autonomousl! ! the UTRAN ut relies onJ/uplication a%oidanceJ +unctions in the CN.There are primaril!

t&o (inds o+ si)nallin) messa)es transported o%er the radiointer+ace " RRC )enerated si)nallin) messa)es and NAS

messa)es )enerated in the hi)her la!ers. $n estalishment o+the si)nallin) connection et&een the peer RRC entities three or

+our UA si)nallin) radio earers ma! e set up. T&o o+ theseearers are set up +or transport o+ RRC )enerated si)nallin)messa)es " one +or trans+errin) messa)es throu)h anunac(no&led)ed mode RC entit! and the other +or trans+errin)

messa)es throu)h an ac(no&led)ed mode RC entit!.

The +unctions o+ AC include;

Mappin& (et)een %$&ica% channe%s an" transp$rtchanne%s. The AC is responsile +or mappin) o+ lo)ical

channel5s6 onto the appropriate transport channel5s6.

Se%ecti$n $f appr$priate Transp$rt *$rmat f$r each

Transp$rt Channe% "epen"in& $n instantane$us s$urce

rate. 8i%en the Transport ormat Comination Set assi)ned! RRC9 AC selects the appropriate transport +ormat &ithinan assi)ned transport +ormat set +or each acti%e transport

channel dependin) on source rate. The control o+ transport+ormats ensures e++icient use o+ transport channels.

#ri$rity han"%in& (et)een "ata f%$)s $f $ne U+. henselectin) et&een the Transport ormat Cominations in the

)i%en Transport ormat Comination Set9 priorities o+ thedata +lo&s to e mapped onto the correspondin) Transport

Channels can e ta(en into account. Priorities are e.). )i%en! attriutes o+ Radio earer ser%ices and RC u++er status.The priorit! handlin) is achie%ed ! selectin) a Transport

ormat Comination +or &hich hi)h priorit! data is mapped

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onto 1 &ith a Khi)h it rateK Transport ormat9 at the sametime lettin) lo&er priorit! data e mapped &ith a Klo& itrateK 5could e >ero it rate6 Transport ormat. Transport+ormat selection ma! also ta(e into account transmit po&er

indication +rom a!er 1. #ri$rity han"%in& (et)een U+s (y means $f "ynamic

sche"u%in&. *n order to utilise the spectrum resourcese++icientl! +or urst! trans+er9 a d!namic schedulin) +unctionma! e applied. AC realises priorit! handlin) on commonand shared transport channels. Note that +or dedicatedtransport channels9 the e=ui%alent o+ the d!namic schedulin)

+unction is implicitl! included as part o+ the recon+i)uration+unction o+ the RRC sula!er.

"entificati$n $f U+s $n c$mm$n transp$rt channe%s.hen a particular UE is addressed on a common do&nlin(

channel9 or &hen a UE is usin) the RAC09 there is a need +orinand identi+ication o+ the UE. Since the AC la!er handles

the access to9 and multiplexin) onto9 the transport channels9the identi+ication +unctionalit! is naturall! also placed in AC.

ultiplexin)demultiplexin) o+ upper la!er P/Us into+romtransport loc(s deli%ered to+rom the ph!sical la!er on

common transport channels. AC should support ser%icemultiplexin) +or common transport channels9 since the

ph!sical la!er does not support multiplexin) o+ thesechannels.

ultiplexin)demultiplexin) o+ upper la!er P/Us into+romtransport loc( sets deli%ered to+rom the ph!sical la!er on

dedicated transport channels. The AC allo&s ser%icemultiplexin) +or dedicated transport channels. This +unction

can e utilised &hen se%eral upper la!er ser%ices 5e.). RCinstances6 can e mapped e++icientl! on the same transportchannel. *n this case the identi+ication o+ multiplexin) iscontained in the AC protocol control in+ormation.

Traffic ,$%ume measurement. easurement o+ tra++ic%olume on lo)ical channels and reportin) to RRC. ased on

the reported tra++ic %olume in+ormation9 RRC per+ormstransport channel s&itchin) decisions.

Transp$rt Channe% type s)itchin&. Execution o+ the

s&itchin) et&een common and dedicated transportchannels ased on a s&itchin) decision deri%ed ! RRC.

Cipherin&. This +unction pre%ents unauthorised ac=uisitiono+ data. Cipherin) is per+ormed in the AC la!er +ortransparent RC mode.

Access Ser,ice C%ass se%ecti$n f$r RACH an" C#CHtransmissi$n. The RAC0 resources 5i.e. access slots andpreamle si)natures6 and CPC0 resources 5i.e. access slotsand preamle si)natures6 ma! e di%ided et&een di++erentAccess Ser%ice Classes in order to pro%ide di++erent prioritieso+ RAC0 and CPC0 usa)e. *n addition it is possile +or more

than one ASC or +or all ASCs to e assi)ned to the same

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access slotsi)nature space. Each access ser%ice class &illalso ha%e a set o+ ac("o++ parameters associated &ith it9some or all o+ &hich ma! e roadcast ! the net&or(. TheAC +unction applies the appropriate ac("o++ and indicates

to the P0L la!er the RAC0 and CPC0 partition associated toa )i%en AC P/U trans+er.

The +unctions o+ P/CP include;

Hea"er c$mpressi$n an" "ec$mpressi$n. 0eadercompression and decompression o+ *P data streams 5e.).9

TCP*P and RTPU/P*P headers6 at the transmittin) andrecei%in) entit!9 respecti%el!. The header compressionmethod is speci+ic to the particular net&or( la!er9 transportla!er or upper la!er protocol cominations e.). TCP*P andRTPU/P*P.

Transfer $f user "ata. Transmission o+ user data means

that P/CP recei%es P/CP S/U +rom the NAS and +or&ards itto the RC la!er and %ice %ersa.

Supp$rt f$r %$ss%ess SRNS re%$cati$n. aintenance o+P/CP se=uence numers +or radio earers that are

con+i)ured to support lossless SRNS relocation.

The +unctions o+ C include;

St$ra&e $f Ce%% -r$a"cast Messa&es.The C stores the Cell roadcast messa)es recei%ed o%erthe CC"RNC inter+ace +or scheduled transmission.

Traffic ,$%ume m$nit$rin& an" ra"i$ res$urce reuest

f$r C-S.At the UTRAN side9 the C calculates the re=uiredtransmission rate +or Cell roadcast Ser%ice ased on themessa)es recei%ed o%er the CC"RNC inter+ace9 and re=uests+or appropriate CTC0AC0 resources +rom RRC.

Sche"u%in& $f -MC messa&es.

The C recei%es schedulin) in+ormation to)ether &ith eachCell roadcast messa)e o%er the CC"RNC"inter+ace. asedon this schedulin) in+ormation9 at the UTRAN side9 C)enerates schedule messa)es and schedules C messa)ese=uences accordin)l!. At the UE side9 C e%aluates theschedule messa)es and indicates schedulin) parameters to

RRC9 &hich are used ! RRC to con+i)ure the lo&er la!ers +orCS discontinuous reception.

Transmissi$n $f -MC messa&es t$ U+.This +unction transmits the C messa)es 5Schedulin) andCell roadcast messa)es6 accordin) to schedule.

De%i,ery $f Ce%% -r$a"cast messa&es t$ upper %ayer/NAS0.This +unctions deli%ers the recei%ed Cell roadcast messa)esto upper la!er 5NAS6 in the UE. $nl! non"corrupted Cellroadcast messa)es are deli%ered.

The +unctions o+ RRC include;

10 Con+idential and Proprietar! *n+ormation o+ :TE C$RP$RAT*$N


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The Radio Resource Control 5RRC6 la!er handles the controlplane si)nallin) o+ a!er 3 et&een the UEs and UTRAN. TheRRC per+orms the +ollo&in) +unctions;

-r$a"cast $f inf$rmati$n pr$,i"e" (y the n$naccess

stratum /C$re Net)$r0.The RRC la!er per+orms s!stemin+ormation roadcastin) +rom the net&or( to all UEs. Thes!stem in+ormation is normall! repeated on a re)ular asis.The RRC la!er per+orms the schedulin)9 se)mentation andrepetition. This +unction supports roadcast o+ hi)her la!er5ao%e RRC6 in+ormation. This in+ormation ma! e cellspeci+ic or not. As an example RRC ma! roadcast Core

Net&or( location ser%ice area in+ormation related to somespeci+ic cells.

-r$a"cast $f inf$rmati$n re%ate" t$ the accessstratum. The RRC la!er per+orms s!stem in+ormation

roadcastin) +rom the net&or( to all UEs. The s!stemin+ormation is normall! repeated on a re)ular asis. The RRC

la!er per+orms the schedulin)9 se)mentation and repetition.This +unction supports roadcast o+ t!picall! cell"speci+ic

in+ormation.

+sta(%ishment3 reesta(%ishment3 maintenance an"

re%ease $f an RRC c$nnecti$n (et)een the U+ an"UTRAN.The estalishment o+ an RRC connection is initiated

! a re=uest +rom hi)her la!ers at the UE side to estalishthe +irst Si)nallin) Connection +or the UE. The estalishment

o+ an RRC connection includes an optional cell re"selection9an admission control9 and a la!er 2 si)nallin) lin(

estalishment. The release o+ an RRC connection can einitiated ! a re=uest +rom hi)her la!ers to release the lastSi)nallin) Connection +or the UE or ! the RRC la!er itsel+ incase o+ RRC connection +ailure. *n case o+ connection loss9

the UE re=uests re"estalishment o+ the RRC connection. *ncase o+ RRC connection +ailure9 RRC releases resources

associated &ith the RRC connection.

+sta(%ishment3 rec$nfi&urati$n an" re%ease $f Ra"i$-earers. The RRC la!er can9 on re=uest +rom hi)her la!ers9per+orm the estalishment9 recon+i)uration and release o+

Radio earers in the user plane. A numer o+ Radio earerscan e estalished to an UE at the same time. At

estalishment and recon+i)uration9 the RRC la!er per+ormsadmission control and selects parameters descriin) the

Radio earer processin) in la!er 2 and la!er 19 ased onin+ormation +rom hi)her la!ers.

Assi&nment3 rec$nfi&urati$n an" re%ease $f ra"i$res$urces f$r the RRC c$nnecti$n.The RRC la!er handles

the assi)nment o+ radio resources 5e.). codes9 CPC0channels6 needed +or the RRC connection includin) needs+rom oth the control and user plane. The RRC la!er ma!recon+i)ure radio resources durin) an estalished RRCconnection. This +unction includes coordination o+ the radioresource allocation et&een multiple radio earers related to

the same RRC connection. RRC controls the radio resources



23/48


in the uplin( and do&nlin( such that UE and UTRAN cancommunicate usin) unalanced radio resources 5as!mmetricuplin( and do&nlin(6. RRC si)nals to the UE to indicateresource allocations +or purposes o+ hando%er to 8S or

other radio s!stems. RRC c$nnecti$n m$(i%ity functi$ns. The RRC la!er

per+orms e%aluation9 decision and execution related to RRCconnection moilit! durin) an estalished RRC connection9such as hando%er9 preparation o+ hando%er to 8S or others!stems9 cell re"selection and cellpa)in) area updateprocedures9 ased on e.). measurements done ! the UE.

#a&in&4n$tificati$n.The RRC la!er can roadcast pa)in)in+ormation +rom the net&or( to selected UEs. 0i)her la!erson the net&or( side can re=uest pa)in) and noti+ication. TheRRC la!er can also initiate pa)in) durin) an estalished RRC

connection.

R$utin& $f hi&her %ayer #DUs.This +unction per+orms atthe UE side routin) o+ hi)her la!er P/Us to the correct hi)herla!er entit!9 at the UTRAN side to the correct RANAP entit!.

C$ntr$% $f reueste" 5$S. This +unction shall ensure thatthe FoS re=uested +or the Radio earers can e met. Thisincludes the allocation o+ a su++icient numer o+ radioresources.

U+ measurement rep$rtin& an" c$ntr$% $f therep$rtin&. The measurements per+ormed ! the UE are

controlled ! the RRC la!er9 in terms o+ &hat to measure9

&hen to measure and ho& to report9 includin) oth UTS airinter+ace and other s!stems. The RRC la!er also per+ormsthe reportin) o+ the measurements +rom the UE to thenet&or(.

6uter %$$p p$)er c$ntr$%.The RRC la!er controls settin)

o+ the tar)et o+ the closed loop po&er control.

C$ntr$% $f cipherin&.The RRC la!er pro%ides procedures

+or settin) o+ cipherin) 5ono++6 et&een the UE and UTRAN.

Ar(itrati$n $f ra"i$ res$urces $n up%in DCH. This+unction controls the allocation o+ radio resources on uplin(/C0 on a +ast asis9 usin) a roadcast channel to send

control in+ormation to all in%ol%ed users.This +unction isimplemented in the CRNC.

Initia% ce%% se%ecti$n an" rese%ecti$n in i"%e m$"e.Selection o+ the most suitale cell ased on idle modemeasurements and cell selection criteria.

Inte&rity pr$tecti$n. This +unction adds a essa)eAuthentication Code 5AC"*6 to those RRC messa)es that areconsidered sensiti%e andor contain sensiti%e in+ormation.

Initia% C$nfi&urati$n f$r C-SThis +unction per+orms the initial con+i)uration o+ the C

sula!er.

)2 Con+idential and Proprietar! *n+ormation o+ :TE C$RP$RAT*$N


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A%%$cati$n $f ra"i$ res$urces f$r C-SThis +unction allocates radio resources +or CS ased ontra++ic %olume re=uirements indicated ! C. The radioresource allocation set ! RRC 5i.e. the schedule +or mappin)

o+ CTC0 onto AC0S"CCPC06 is indicated to C to enale)eneration o+ schedule messa)es. The resource allocation +orCS shall e roadcast as s!stem in+ormation.

C$nfi&urati$n f$r C-S "isc$ntinu$us recepti$nThis +unction con+i)ures the lo&er la!ers 519 26 o+ the UE&hen it shall listen to the resources allocated +or CS asedon schedulin) in+ormation recei%ed +rom C.

Status o= RRC Proto#ol

*n C/A9 all statuses o+ UE are scheduled ! RRC protocol.$ne UE has se%eral RRC statuses9 such as9 *dle and /C0. i)ure' sho&s the status and status con%ersion 5containin) 8Sstatus6.

F I # U R $ RRC ST A T U S AN D ST AT US C% N& $ RS I % N

Esta>lis RRC

Conne#tion

Release RRC

Conne#tion

2TRA RRC Conne#ted ?ode

2TRA*Inter"RAT!ando


25/48


locates in.

CEMPC0 status indicates that UE onl! intercepts PC0 and C0.*n this status9 UE can reselect the cell. /urin) the reselection9 it

con%erts into CEMAC0 status9 the cell update initiates9 and it

returns to CEMPC0 status. The net&or( can determine the cell&hich the UE locates in.

URAMPC0 status is similar to CEMPC0 status. The net&or( can

onl! determine the URA cell &hich the UE locates in.

The introduction o+ CEMPC0 status and URAMPC0 status is to(eep UE al&a!s in online status in order not to &aster radioresources.

So6e E14lanations

*n CEMPC09 URAMPC0 or *dle status9 UE can intercept PC0 andC09 and can recei%e the messa)e o+ Pa)in). *n CEM/C0 orCEMAC0 status9 UE cannot intercept PC0 and C0. Pa)in)T!pe 2 is introduced to pa)e UE in these t&o statuses.

Usuall!9 the permanent */ in+ormation o+ UE 5such as9 *S*6 &illnot e sa%ed in RNC. hen UE is ma(in) a call9 CN in+orms RNC

o+ the *S* o+ the UE &ith the messa)e o+ Command */ o+RANAP. hen CN re=uires RNC to pa)e a speci+ic UE9 RNC &ill

ud)e &hich RRC status the *S* to pa)e is in9 to decide thepa)in) t!pe 5Pa)in) T!pe 1 or Pa)in) T!pe 26.

)) Con+idential and Proprietar! *n+ormation o+ :TE C$RP$RAT*$N


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Proto#ol related to Inter=a#e

IuI2 inter=a#e ar#ite#ture

Core Network (CN)UTRAN

Node B

Node B

Node B

Node B

RNC

Iu Interface

9Iu$BC:

9Iu$CS:

BCDoa!n

C"Doa!n

P"Doa!n

9Iu$&S:

RNC

The *uinter+ace is speci+ied at the oundar! et&een the Core

Net&or( and UTRAN. i)ure depicts the lo)ical di%ision o+ the *uinter+ace. rom the *u perspecti%e9 the UTRAN access point is anRNC. The *u inter+ace to&ards the PS"domain o+ the corenet&or( is called *u"PS9 and the *u inter+ace to&ards the CS"domain is called *u"CS. The di++erences et&een *u"CS and *u"PS are treated else&here in the present document. The *uinter+ace to the roadcast domain is called *u"C.

There shall not e more than one *u inter+ace 5*u"PS6 to&ardsthe PS"domain +rom an! one RNC. Each RNC shall not ha%e

more than one *u inter+ace 5*u"CS6 to&ards its de+ault CN node&ithin the CS domain9 ut ma! also ha%e +urther *u inter+aces5*u"CS6 to&ards other CN nodes &ithin the CS domain. 5See HGI+or de+inition o+ /e+ault CN node.6 These +urther *u inter+aces5*u"CS6 shall onl! e used as a result o+ intra"SC inter"s!stem

hando%er or SRNS relocation9 in the case the anchor CN nodedirectl! connects to the tar)et RNC. There shall not e more

than one *u inter+ace 5*u"C6 +rom an RNC to&ards theroadcast domain.

*n the separated core net&or( architecture9 this means thatthere shall e separate si)nallin) and user data connections

to&ards the PS and CS domains O this applies in oth transport

Con+idential and Proprietar! *n+ormation o+ :TE C$RP$RAT*$N )*


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and radio net&or( la!ers.

*n the comined architecture9 there shall e separateconnections in the user plane to&ards the PS and CS domains

5in oth transport and radio net&or( la!ers6. *n the control

plane9 there shall e separate SCCP connections to the t&olo)ical domains.

*n either architecture9 there can e se%eral RNCs &ithin UTRAN

and so UTRAN ma! ha%e se%eral *uaccess points to&ards theCore Net&or(. As a minimum9 each *u access point 5in UTRAN or

CN6 shall independentl! +ul+il the re=uirements o+ the rele%ant *uspeci+ications

Proto#ol Stru#ture o= Iu Inter=a#e

i)ure 14sho&s the structure o+ *nter+ace *u"CS protocol andi)ure 11sho&s the structure o+ *nter+ace *u"PS protocol.

F I # U R $ 12 ST RUCT UR$ % F I U /CS PR% T % C% '

;.2*5


28/48


F I # U R $ 11 ST RUCT UR$ % F I NT $ RF AC$ IU /PS P R% T % C% '

SSC%$NNI

SSC=&

''5

I&

SC&

SCC&

SSC%$NNI

8&/$B

8/U'

R'N'&Iu U& &rotocol

yer

rns+ort

Network

yer

&hysicl yer

rns+ort

User

Network

&lne

Control &lne User &lne

rns+ort

User

Network

&lnerns+ort Network

Control &lne

Rdio

Network

yer

'8

''5

I&

UD&

7&$U

&hysicl yer

'8

RANA#; user plane application protocol. *t pro%ides thesi)nallin) ser%ice et&een UTRAN and CN that is re=uired to+ul+il the RANAP +unctions. RANAP protocol has the +ollo&in)+unctions;

Relocatin) ser%in) RNC. This +unction enales to chan)e the

ser%in) RNC +unctionalit! as &ell as the related *u resources5RA5s6 and Si)nallin) connection6 +rom one RNC to another.

$%erall RA mana)ement. This +unction is responsile +orsettin) up9 modi+!in) and releasin) RAs.

Fueuin) the setup o+ RA. The purpose o+ this +unction is toallo& placin) some re=uested RAs into a =ueue9 andindicate the peer entit! aout the =ueuin).

Re=uestin) RA release. hile the o%erall RA mana)ementis a +unction o+ the CN9 the RNC has the capailit! to re=uestthe release o+ RA.

Release o+ all *u connection resources. This +unction is usedto explicitl! release all resources related to one *u

connection.

Re=uestin) the release o+ all *u connection resources. hile

the *u release is mana)ed +rom the CN9 the RNC has thecapailit! to re=uest the release o+ all *u connection

resources +rom the correspondin) *u connection.

Con+idential and Proprietar! *n+ormation o+ :TE C$RP$RAT*$N ),


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SRNS context +or&ardin) +unction. This +unction isresponsile +or trans+errin) SRNS context +rom the RNC tothe CN +or inters!stem chan)e in case o+ pac(et +or&ardin).

Controllin) o%erload in the *u inter+ace. This +unction allo&s

adustin) the load in the *u inter+ace.

Resettin) the *u. This +unction is used +or resettin) an *uinter+ace.

Sendin) the UE Common */ 5permanent NAS UE identit!6 tothe RNC. This +unction ma(es the RNC a&are o+ the UEJsCommon */.

Pa)in) the user. This +unction pro%ides the CN +or capailit!to pa)e the UE.

Controllin) the tracin) o+ the UE acti%it!. This +unction allo&s

settin) the trace mode +or a )i%en UE. This +unction also

allo&s the deacti%ation o+ a pre%iousl! estalished trace.

Transport o+ NAS in+ormation et&een UE and CN 5see H#I6.This +unction has t&o su"classes;

1. Transport o+ the initial NAS si)nallin) messa)e +rom the UEto CN. This +unction trans+ers transparentl! the NASin+ormation. As a conse=uence also the *u si)nallin)connection is set up.

2. Transport o+ NAS si)nallin) messa)es et&een UE and CN9This +unction trans+ers transparentl! the NAS si)nallin)messa)es on the existin) *u si)nallin) connection. *t alsoincludes a speci+ic ser%ice to handle si)nallin) messa)es

di++erentl!.

Controllin) the securit! mode in the UTRAN. This +unction isused to send the securit! (e!s 5cipherin) and inte)rit!protection6 to the UTRAN9 and settin) the operation mode +orsecurit! +unctions.

Controllin) location reportin). This +unction allo&s the CN to

operate the mode in &hich the UTRAN reports the location o+the UE.

ocation reportin). This +unction is used +or trans+errin) theactual location in+ormation +rom RNC to the CN.

/ata %olume reportin) +unction. This +unction is responsile+or reportin) unsuccess+ull! transmitted / data %olume o%erUTRAN +or speci+ic RAs.

Reportin) )eneral error situations. This +unction allo&sreportin) o+ )eneral error situations9 +or &hich +unctionspeci+ic error messa)es ha%e not een de+ined.

ocation related data. This +unction allo&s the CN to eitherretrie%e +rom the RNC decipherin) (e!s 5to e +or&arded to

the UE6 +or the roadcasted assistance data9 or re=uest theRNC to deli%er dedicated assistance data to the UE.

)3 Con+idential and Proprietar! *n+ormation o+ :TE C$RP$RAT*$N


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SCC#; The SCCP is used to support si)nallin) messa)eset&een the CNs and the RNC. $ne user +unction o+ the SCCP9called Radio Access Net&or( Application Part 5RANAP69 isde+ined. The RANAP uses one si)nallin) connection per acti%e UE

and CN +or the trans+er o+ la!er 3 messa)es. RANAP ma! useSSN9 SPC andor 8T and an! comination o+ them as addressin)schemes +or the SCCP. hich o+ the a%ailale addressin)

scheme to use +or the SCCP is an operator matter. A ne& SCCPconnection is estalished &hen in+ormation related to thecommunication et&een a UE and the net&or( has to eexchan)ed et&een RNC and CN9 and no SCCP connection existset&een the CN and the RNC in%ol%ed9 +or the concerned UE.

MT#-' pro%ides messa)e routin)9 discrimination and

distriution 5+or point"to"point lin( onl!69 si)nalin) lin(mana)ement load sharin) and chan)eo%erac( et&een lin(&ithin one lin("set. The need +or multiple lin("sets is precluded.

SAANNI'SAA"NN* H1I consists o+ the +ollo&in) su"la!ers; "

SSC H3I9 " SSC$P H2I and O AA, HGI. The SSC maps there=uirements o+ the la!er ao%e to the re=uirements o+ SSC$P.

Also SAA connection mana)ement9 lin( status and remoteprocessor status mechanisms are pro%ided. SSC$P pro%idesmechanisms +or the estalishment and release o+ connectionsand the reliale exchan)e o+ si)nallin) in+ormation et&eensi)nallin) entities. Adapts the upper la!er protocol to there=uirements o+ the o&er AT cells.

*UUP; user plane protocol.

8T#U'8TP"U is used as the user data earer to&ards the PS

domain.RANAP Si)nallin) is used to estalish9 modi+! andrelease the 8TP"U tunnels to&ards the PS domain.

AA2'AA2 is used as the user data earer to&ards the CSdomain.F.2G34.2 is used as the protocol +or d!namicall! setupAA"2 connections o%er *u to&ards the CS domain. F.2G34.2adds ne& optional capailities to F.2G34.1.

So6e E14lanations

SRNS Relo#ation

$ne case;

UE crosses 2 RNSs durin) the mo%e9 as sho&n in i)ure 12.

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32/48


SRNC relocation9 SRNC 5Ser%in) RNC6 is also called Source RNCand /RNC is also called Tar)et RNC. i)ure 1-sho&s the resulta+ter the relocation completes.

F I # U R $ 1+ SRNS R $ ' % CAT I % N 4 I I I 5

SRNS relocation is the process to mo%e *nter+ace *u +rom SourceRNC to Tar)et RNC.

RANAP Pro#ess

TA6' $ 1 C' AS S 1

+%ementary#r$ce"ure

Initiatin&Messa&e

Successfu%6utc$me

Unsuccessfu%6utc$me

Responsemessa)e

Response messa)e

*u Release *UREEASEC$AN/

*U REEASEC$PETE

RelocationPreparation

RE$CAT*$NREFU*RE/

RE$CAT*$NC$AN/

RE$CAT*$NPREPARAT*$NA*URE

RelocationResource

Allocation

RE$CAT*$N

REFUEST

RE$CAT*$NREFUEST

ACBN$E/8E

RE$CAT*$NA*URE

RelocationCancel

RE$CAT*$NCANCE

RE$CAT*$NCANCEACBN$E/8E

Con+idential and Proprietar! *n+ormation o+ :TE C$RP$RAT*$N )


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+%ementary

#r$ce"ure

Initiatin&

Messa&e

Successfu%6utc$me

Unsuccessfu%6utc$me

Responsemessa)e

Response messa)e

SRNSContextTrans+er

SRNSC$NTETREFUEST

SRNS C$NTETRESP$NSE

Securit!ode

Control

SECUR*TL$/E

C$AN/

SECUR*TL $/EC$PETE

SECUR*TL $/EREQECT

/ata ?olumeReport

/ATA?$UEREP$RTREFUEST

/ATA ?$UEREP$RT

Reset RESET RESET

ACBN$E/8E

ResetResource

RESETRES$URCE

RESET RES$URCEACBN$E/8E

ocation

related /ata

$CAT*$N

REATE//ATA

REFUEST

$CAT*$N

REATE/ /ATARESP$NSE

$CAT*$N

REATE/ /ATAA*URE

TA6' $ ) C' AS S )

+%ementary #r$ce"ure Messa&e

RA odi+ication Re=uest RA $/*L REFUEST

RA Release Re=uest RA REEASE REFUEST

*u Release Re=uest *U REEASE REFUEST

Relocation /etect RE$CAT*$N /ETECT

Relocation Complete RE$CAT*$N C$PETE

SRNS /ata or&ardin) *nitiation SRNS /ATA $RAR/C$AN/

SRNS Context or&ardin) +romSource RNC to CN

$RAR/ SRNS C$NTET

SRNS Context or&ardin) to Tar)et

RNC +rom CN

$RAR/ SRNS C$NTET

Pa)in) PA8*N8

Common */ C$$N */

CN *n%o(e Trace CN *N?$BE TRACE

CN /eacti%ate Trace CN /EACT*?ATE TRACE

ocation Reportin) Control $CAT*$N REP$RT*N8C$NTR$

ocation Report $CAT*$N REP$RT

*nitial UE essa)e *N*T*A UE ESSA8E

*2 Con+idential and Proprietar! *n+ormation o+ :TE C$RP$RAT*$N


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/irect Trans+er /*RECT TRANSER

$%erload Control $?ER$A/

Error *ndication ERR$R *N/*CAT*$N

TA6' $ * C' AS S *

+%ementary#r$ce"ure

Initiatin&Messa&e

Resp$nse Messa&e

RA Assi)nment RA ASS*8NENT

REFUEST

RA ASS*8NENT

RESP$NSE x N 5N16

Proto#ol related to Inter=a#eIurThe hi)hest la!er protocol o+ *nter+ace *ur control plane isRANSAP. i)ure 1,sho&s the structure o+ *nter+ace *ur protocol.

F I # U R $ 1, ST RUCT UR$ % F I NT $ RF AC$ IU R PR% T % C% '

SSC"NNI

SSCOP

?TP3";

AA&

IP

SCTP

SCCP

AA&

SSC"NNI

STC +B.'&0.'-

RNSAP Iur %ataStrea6+s-

Trans4ort

Net8or$

a9er

P9si#al a9er

Trans4ort2ser

Net8or$Plane

Control Plane 2ser Plane

Trans4ort2ser

Net8or$Plane

Trans4ort Net8or$Control Plane

Radio

Net8or$

a9er

AT?

ACAP+B.,30.'-

AA

SSC"NNI

SSCOP

?TP3";

IP

SCTPSSC"NNI

?32A ?32A

The protocol structure o+ *nter+ace *ur control plane 5includin)

RN and TN6 is same as that o+ *nter+ace *u control plane.

Con+idential and Proprietar! *n+ormation o+ :TE C$RP$RAT*$N *1


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un#tion and Stru#ture o= Inter=a#eIur

*nter+ace *ur is to transmit data &hen UE per+orms the so+thando%er et&een adacent RNCs.

38PP prescries that *nter+ace *ur is a lo)ic entit!. That is9

*nter+ace *ur and *nter+ace *u can either share one channel +orthe transmission or connect %ia independent ph!sical inter+ace.

%C! ra6e Proto#ol o= Inter=a#e Iur

As sho&n in i) 3.3"39 &hen UE crosses RNSs9 /RNC can+or&ard /C0 data to SRNC %ia *nter+ace *ur. /RNC does not

process /C0 data ut directl! send /C0 data at *nter+ace *u to*nter+ace *ur. /C0 +rames o+ *nter+ace *ur and *nter+ace *u (eep

consistent9 to )reatl! reduce /C0 data processin) ! /RNC.

RNSAP Pro#ess

TA6' $ + C' AS S 1 $' $ M $ NT AR. PR% C$ DUR$ S

+%ementary#r$ce"ure

Initiatin&Messa&e

Successfu%

6utc$me

Unsuccessfu%

6utc$meResponsemessa)e

Responsemessa)e

Radio in(Setup

RA/*$ *NBSETUPREFUEST

RA/*$ *NBSETUPRESP$NSE

RA/*$ *NBSETUP A*URE

Radio in(Addition

RA/*$ *NBA//*T*$N

REFUEST

RA/*$ *NBA//*T*$N

RESP$NSE

RA/*$ *NBA//*T*$N

A*URE

Radio in(/eletion

RA/*$ *NB/EET*$NREFUEST

RA/*$ *NB/EET*$NRESP$NSE

S!nchronised Radio in(Recon+i)urationPreparation

RA/*$ *NBREC$N*8URAT*$NPREPARE

RA/*$ *NBREC$N*8URAT*$N REA/L

RA/*$ *NBREC$N*8URAT*$N A*URE

Uns!nchroni

sed Radioin(

Recon+i)uration

RA/*$ *NB

REC$N*8URAT*$N

REFUEST

RA/*$ *NB

REC$N*8URAT*$N RESP$NSE

RA/*$ *NB

REC$N*8URAT*$N A*URE

*) Con+idential and Proprietar! *n+ormation o+ :TE C$RP$RAT*$N


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+%ementary

#r$ce"ure

Initiatin&

Messa&e

Successfu%6utc$me

Unsuccessfu%6utc$me

Responsemessa)e

Responsemessa)e

Ph!sicalChannelRecon+i)uration

P0LS*CAC0ANNEREC$N*8URAT*$NREFUEST

P0LS*CAC0ANNEREC$N*8URAT*$N C$AN/

P0LS*CAC0ANNEREC$N*8URAT*$N A*URE

/edicatedeasuremen

t *nitiation

/E/*CATE/EASUREE

NT*N*T*AT*$N

REFUEST

/E/*CATE/EASUREENT

*N*T*AT*$NRESP$NSE

/E/*CATE/EASUREENT

*N*T*AT*$NA*URE

CommonTransport

ChannelResources*nitialisation

C$$NTRANSP$RT

C0ANNERES$URCESREFUEST

C$$NTRANSP$RT

C0ANNERES$URCESRESP$NSE

C$$NTRANSP$RT

C0ANNERES$URCESA*URE

Commoneasurement *nitiation

C$$NEASUREENT*N*T*AT*$NREFUEST

C$$NEASUREENT*N*T*AT*$NRESP$NSE

C$$NEASUREENT*N*T*AT*$NA*URE

*n+ormationExchan)e*nitiation

*N$RAT*$N EC0AN8E*N*T*AT*$NREFUEST

*N$RAT*$NEC0AN8E*N*T*AT*$NRESP$NSE

*N$RAT*$NEC0AN8E*N*T*AT*$NA*URE

TA6' $ , C' AS S ) $' $ M $ NT AR. PR% C$ DUR$ S

+%ementary #r$ce"ure Initiatin& Messa&e

Uplin( Si)nallin) Trans+er UP*NB S*8NA*N8 TRANSER*N/*CAT*$N

/o&nlin( Si)nallin) Trans+er /$N*NB S*8NA*N8 TRANSERREFUEST

Relocation Commit RE$CAT*$N C$*T

Pa)in) PA8*N8 REFUEST

S!nchronised Radio in(Recon+i)uration Commit

RA/*$ *NB REC$N*8URAT*$NC$*T

S!nchronised Radio in(Recon+i)uration Cancellation

RA/*$ *NB REC$N*8URAT*$NCANCE

Radio in( ailure RA/*$ *NB A*URE *N/*CAT*$N

Radio in( Restoration RA/*$ *NB REST$RE *N/*CAT*$N

/edicated easurementReportin)

/E/*CATE/ EASUREENT REP$RT

/edicated easurementTermination

/E/*CATE/ EASUREENTTER*NAT*$N REFUEST

Con+idential and Proprietar! *n+ormation o+ :TE C$RP$RAT*$N **


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+%ementary #r$ce"ure Initiatin& Messa&e

/edicated easurementailure

/E/*CATE/ EASUREENT A*URE*N/*CAT*$N

/o&nlin( Po&er ControlH//I / P$ER C$NTR$ REFUEST

Compressed ode CommandH//I

C$PRESSE/ $/E C$AN/

Common Transport ChannelResources Release

C$$N TRANSP$RT C0ANNERES$URCES REEASE REFUEST


/o&nlin( Po&er TimeslotControl HT//I

/ P$ER T*ES$T C$NTR$REFUEST

Radio in( Pre"emption RA/*$ *NB PREEPT*$N REFU*RE/

*N/*CAT*$N

Radio in( Con)estion RA/*$ *NB C$N8EST*$N*N/*CAT*$N

Common easurementReportin)

C$$N EASUREENT REP$RT

Common easurement

Termination

C$$N EASUREENT

TER*NAT*$N REFUEST

Common easurement

ailure

C$$N EASUREENT A*URE

*N/*CAT*$N

*n+ormation Reportin) *N$RAT*$N REP$RT

*n+ormation Exchan)e

Termination

*N$RAT*$N EC0AN8E

TER*NAT*$N REFUEST

*n+ormation Exchan)eailure

*N$RAT*$N EC0AN8E A*URE*N/*CAT*$N

Proto#ol Related to Inter=a#eIu>The hi)h la!er protocol o+ *nter+ace *u control plane is NAP.

The user plane consists o+ se%eral +rame protocols. i)ure 1Gsho&s the structure o+ protocols.

*+ Con+idential and Proprietar! *n+ormation o+ :TE C$RP$RAT*$N


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F I # U R $ 13 ST RUCT UR$ % F I NT $ RF AC$ IU 6 PR% T % C% '

Node B

'++liction &rt

(NB'&)

'' y+e 2

ALCAP

rns+ort

yer

&hysicl yer

Rdio

Network

yer

Rdio Network

Control &lne

rns+ortNetwork

Control &lne

'8

'' y+e 5

User &lne

SSC%$UNI

SSC=&

'' y+e 5

SSC%$UNI

SSC=&

;.24/

RAC!

%ata

4ort

Iu>

0AC!

%ata

4ort

Iu>

PC!

%ata

4ort

Controlling RNC

Iu>

0%%

CPC!%ata

4ort

Tra==i# ter6ination 4oint

Co66uni#ation

Control

Port

Iu>

T%% 2SC!

%ata

4ort

Iu>

%C!

%ata

4ort

Iu>

%SC!

%ata

4ort

Iu>

0%% T0CI.

%ata

4ort

Tra==i# ter6ination 4oint

Co66uni#ation

Control

Port

Iu>

T%% 2SC!

%ata

4ort

Iu>

%C!

%ata

4ort

Iu>

%SC!

%ata

4ort

Iu>

0%% T0CI.

%ata

Port

Node lo)ic model consists o+ cell9 common transmissionchannelport9 Node communication context9 and thecorrespondin) /SC0/C0. Node controls NCP and the

communication controls port CCP9 etc.

Con+idential and Proprietar! *n+ormation o+ :TE C$RP$RAT*$N *,


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Node communication context and the correspondin)/SC0/C0 port are related to dedicated user ser%ices.

Node communication context is correspondin) to CRNC

communication context.

Node communication context is identi+ies ! Node

Communication Text */9 containin) necessar! in+ormation tocommunicate &ith UE. *t is estalished &hen R is setup and

deleted &hen R is deleted.

There is onl! one NCP lin( on one Node . RNC sends all Node common control si)nalin) +rom NCP. NCP lin( must e setupe+ore operatin)9 maintainin)9 and controllin) Node .

There can e se%eral CCP lin(s on one Node . RNC sends allNode dedicated control si)nalin) +rom CCP lin(. Usuall!9 onecell inside Node can e con+i)ured &ith one CCP 5it is ust aroutine9 not certain.6



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N;AP Pro#ess

TA6' $ 3 C' AS S 1

+%ementary#r$ce"ure

Messa&e

Successfu%6utc$me

Unsuccessfu%6utc$me

Response

messa)e

Response

messa)e

Cell Setup CE SETUP

REFUEST

CE SETUP

RESP$NSE

CE SETUP

A*URE

CellRecon+i)uration

CEREC$N*8URAT*$N

REFUEST

CEREC$N*8URAT*$N RESP$NSE

CEREC$N*8URAT*$N A*URE

Cell /eletion CE/EET*$NREFUEST

CE /EET*$NRESP$NSE

CommonTransport

ChannelSetup

C$$NTRANSP$RT

C0ANNESETUP

REFUEST

C$$NTRANSP$RT

C0ANNE SETUPRESP$NSE

C$$NTRANSP$RT

C0ANNE SETUPA*URE

Common

TransportChannel

Recon+i)uration

C$$N

TRANSP$RTC0ANNE

REC$N*8URAT*$N

REFUEST

C$$N

TRANSP$RTC0ANNE


C$$N

TRANSP$RTC0ANNE


CommonTransportChannel/eletion

C$$NTRANSP$RTC0ANNE/EET*$NREFUEST

C$$NTRANSP$RTC0ANNE/EET*$NRESP$NSE

Ph!sicalSharedChannelRecon+i)ure

HT//I

P0LS*CAS0ARE/C0ANNEREC$N*8U

RAT*$NREFUEST

P0LS*CAS0ARE/C0ANNEREC$N*8URAT*

$N RESP$NSE

P0LS*CAS0ARE/C0ANNEREC$N*8URAT*

$N A*URE

Audit AU/*TREFUEST

AU/*TRESP$NSE

AU/*T A*URE

loc(Resource

$CBRES$URCEREFUEST

$CBRES$URCERESP$NSE

$CBRES$URCEA*URE

Radio in(Setup

RA/*$ *NBSETUPREFUEST

RA/*$ *NBSETUPRESP$NSE

RA/*$ *NBSETUP A*URE

Con+idential and Proprietar! *n+ormation o+ :TE C$RP$RAT*$N *-


41/48


+%ementary

#r$ce"ureMessa&e

Successfu%6utc$me

Unsuccessfu%6utc$me

Responsemessa)e

Responsemessa)e

S!stem*n+ormationUpdate

SLSTE*N$RAT*$N UP/ATEREFUEST

SLSTE*N$RAT*$NUP/ATERESP$NSE

SLSTE*N$RAT*$NUP/ATE A*URE

Common

easurement*nitiation

C$$N

EASUREENT

*N*T*AT*$NREFUEST

C$$N

EASUREENT*N*T*AT*$N

RESP$NSE

C$$N

EASUREENT*N*T*AT*$N

A*URE

Radio in(Addition

RA/*$ *NBA//*T*$NREFUEST

RA/*$ *NBA//*T*$NRESP$NSE

RA/*$ *NBA//*T*$NA*URE

Radio in(/eletion

RA/*$ *NB/EET*$NREFUEST

RA/*$ *NB/EET*$NRESP$NSE

S!nchronisedRadio in(Recon+i)urationPreparation

RA/*$ *NBREC$N*8URAT*$NPREPARE

RA/*$ *NBREC$N*8URAT*$N REA/L

RA/*$ *NBREC$N*8URAT*$N A*URE

Uns!nchronis

ed Radio in(Recon+i)urati

on

RA/*$ *NB

REC$N*8URAT*$N

REFUEST

RA/*$ *NB


RA/*$ *NB


/edicatedeasurement*nitiation

/E/*CATE/EASUREENT*N*T*AT*$NREFUEST

/E/*CATE/EASUREENT*N*T*AT*$NRESP$NSE

/E/*CATE/EASUREENT*N*T*AT*$NA*URE

Reset RESETREFUEST

RESETRESP$NSE

CellS!nchronisati

on *nitiationH3.#-cps

T//I

CESLNC0R$N*

SAT*$N*N*T*AT*$N

REFUEST

CESLNC0R$N*SAT*

$N *N*T*AT*$NRESP$NSE

CESLNC0R$N*SAT*

$N *N*T*AT*$NA*URE

Cell

S!nchronisation

Recon+i)uration H3.#-

cps T//I

CE

SLNC0R$N*SAT*$N

REC$N*8URAT*$N

REFUEST

CE

SLNC0R$N*SAT*$N


CE

SLNC0R$N*SAT*$N


CellS!nchronisationAdustmentH3.#-cpsT//I

CESLNC0R$N*SAT*$NA/QUSTENT REFUEST

CESLNC0R$N*SAT*$N A/QUSTENTRESP$NSE

CESLNC0R$N*SAT*$N A/QUSTENTA*URE



42/48


+%ementary

#r$ce"ureMessa&e

Successfu%6utc$me

Unsuccessfu%6utc$me

Responsemessa)e

Responsemessa)e

*n+ormationExchan)e*nitiation

*N$RAT*$NEC0AN8E*N*T*AT*$NREFUEST

*N$RAT*$NEC0AN8E*N*T*AT*$NRESP$NSE

*N$RAT*$NEC0AN8E*N*T*AT*$NA*URE

TA6' $ - C' AS S )


Resource Status *ndication RES$URCE STATUS *N/*CAT*$N

Audit Re=uired AU/*T REFU*RE/ *N/*CAT*$N

Common easurementReportin)

C$$N EASUREENT REP$RT

Common easurementTermination

C$$N EASUREENTTER*NAT*$N REFUEST

Common easurementailure

C$$N EASUREENT A*URE*N/*CAT*$N

S!nchronised Radio in(

Recon+i)uration Commit

RA/*$ *NB REC$N*8URAT*$N

C$*T

S!nchronised Radio in(Recon+i)uration Cancellation

RA/*$ *NB REC$N*8URAT*$NCANCE

Radio in( ailure RA/*$ *NB A*URE *N/*CAT*$N

Radio in( Restoration RA/*$ *NB REST$RE *N/*CAT*$N

/edicated easurement

Reportin)

/E/*CATE/ EASUREENT REP$RT

/edicated easurementTermination

/E/*CATE/ EASUREENTTER*NAT*$N REFUEST

/edicated easurementailure

/E/*CATE/ EASUREENT A*URE*N/*CAT*$N

/o&nlin( Po&er Control

H//I

/ P$ER C$NTR$ REFUEST

Compressed ode CommandH//I

C$PRESSE/ $/E C$AN/

Unloc( Resource UN$CB RES$URCE *N/*CAT*$N


/o&nlin( Po&er Timeslot

Control HT//I

/ P$ER T*ES$T C$NTR$

REFUEST

Radio in( Pre"emption RA/*$ *NB PREEPT*$N REFU*RE/*N/*CAT*$N

Cell S!nchronisationReportin) H3.#-cps T//I

CE SLNC0R$N*SAT*$N REP$RT

Con+idential and Proprietar! *n+ormation o+ :TE C$RP$RAT*$N *


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Cell S!nchronisationTermination H3.#-cps T//I

CE SLNC0R$N*SAT*$NTER*NAT*$N REFUEST

Cell S!nchronisation ailureH3.#-cps T//I CE SLNC0R$N*SAT*$N A*URE*N/*CAT*$N

*n+ormation Reportin) *N$RAT*$N REP$RT

*n+ormation Exchan)eTermination

*N$RAT*$N EC0AN8ETER*NAT*$N REFUEST

*n+ormation Exchan)eailure

*N$RAT*$N EC0AN8E A*URE*N/*CAT*$N

Cell Setu4 Pro#essF I # U R $ 10 C$'' S$TUP PR%C$SS

RNC Node B

NB'&. Cell setu+ reuest

NC&?CC& nd 'C'& set u+

Reset +rocess

NB'& nd cell setu+ res+onse

NB'& nd SCC&C# setu+ reuest

NB'& nd SCC&C# setu+ res+onse

'C'&: ER;(%'C#)

'C'& -EC%

'C'&-ER;(&C#)

'C'&-EC%

NB'&- R'C# setu+ reuest

NB'&- R'C# setu+ res+onse

'C'&-ER;( R'C#)

'C'&- EC%

NB'&- Syste, in5or,tion u+dte reuest

NB'&- Syste, in5or,tion u+dte res+onse

Node B

strtu+

+rocess

Cell setu+

+rocess

%& synchroni@tion +rocess

&CC&C#

+2 Con+idential and Proprietar! *n+ormation o+ :TE C$RP$RAT*$N


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CS Call Ori:ination lo8

+RRC Setu4 on CC!-F I # U R $ 1 C A' ' %RI # I NAT I % N F ' %W 4RRC S $ T UP % N CC(5

RRC connection re. R'C# ACCC#

R setu+ re

R setu+ res+.

'C'& ES. re

'C'& ES. c5n

RRC connection setu+( %'C# ACCC#)

RRC connection setu+ co,+.(R'C#DCC#)

INII' D(C8 ser!ice re)( DCC#)

D(setu+)

D(cll +roceedin")

D('uthentiction re)

D('uthentiction res+)

Initil UE ,ess"e

R'B ssi"n,ent re

RB setu+

RB setu+ co,+ R'B ssi"n,ent res+

D(lertin")

D(connect)

D(connect ck)

UE NodeB RNC 8SC

D(C8 ser!ice cce+t)

DC#%&-U+link S6NC

DC#%&-Downlink S6NC

Con+idential and Proprietar! *n+ormation o+ :TE C$RP$RAT*$N +1


45/48


CS Call Ori:ination lo8

+RRC Setu4 on %C!-F I # U R $ )2 CS CA' ' % RI # I NAT I % N F ' % W 4RRC S $ T UP % N DC(5

RRC connection re.

R setu+ re

R setu+ res+.

'C'& ES. re

'C'& ES. c5n

RRC connection setu+

RRC connection setu+ co,+.

INII' D(C8 ser!ice re)

D(setu+)

D(cll +roceedin")

D('uthentiction re)

D('uthentiction res+)

Initil UE ,ess"e

R'B ssi"n,ent reR recon5i" +re

R recon5i" redy

'C'& ES. re

'C'& ES. c5n

R recon5i" co,,it

RB setu+

RB setu+ co,+ R'B ssi"n,ent res+

D(lertin")

D(connect)

D(connect ck)

UE NodeB RNC 8SC

'C'& ES. re

'C'& ES. c5n

D(C8 ser!ice cce+t)

DC#%&-U+link S6NC

DC#%&-Downlink S6NC

+) Con+idential and Proprietar! *n+ormation o+ :TE C$RP$RAT*$N


46/48


CS Call Ter6ination lo8

F I # U R $ )1 CS CA' ' T $ RM I NAT I % N F' % W 4RRC S $ T UP % N DC(5

RC connection re.

R setu+ re

R setu+ res+.

'C'& ES. re

'C'& ES. c5n

RC connection setu+

NII' D(&"in" res+)

(setu+)

(cll con5ir,ed)

('uthentiction re)

('uthentiction res+)

Initil UE ,ess"e

R'B ssi"n,ent reR recon5i" +re

R recon5i" redy

'C'& ES. re

'C'& ES. c5n

R recon5i" co,,it

B setu+

B setu+ co,+ R'B ssi"n,ent res+

(lertin")

(connect)

(connect ck)

"in" ty+e* +"in"

UE B NodeB RNC 8SC

'C'& ES. re

'C'& ES. c5n

DC#%&U S6NC

DC#%&D S6NC

RC connection setu+ co,+.

Con+idential and Proprietar! *n+ormation o+ :TE C$RP$RAT*$N +*


47/48


Release lo8 in CS %o6ain

CN Ori:inatesF I # U R $ )) R $ ' $ AS $ F' % W I N CS D % M AI N CN I NI T I AT $ S

D relese

D Relese co,

RRC connection relese

RRC connection relese co,

IU relese co,,nd

IU relese co,

R delete

R delete res

'C'& RE. re

'C'& RE. c5n

U# NodeB RNC M"C

'C'& ES. re

'C'& ES. c5n

D disconnection

++ Con+idential and Proprietar! *n+ormation o+ :TE C$RP$RAT*$N


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Release lo8 in CS %o6ain

2E Ori:inatesF I # U R $ )* R $ ' $ AS $ F' % W I N CS D % M AI N U$ INI T I AT $ S

D re ese

D Relese co,

RRC connection relese

RRC connection relese co,

IU relese co,,nd

IU re ese co,+

R delete

R delete res+

'C'& RE. re

'C'& RE. c5n

U# NodeB RNC M"C

'C'& ES. re

'C'& ES . c n

D sconnect on

3 Interface Protocol and Signaling Flow 49

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Transcript of 3 Interface Protocol and Signaling Flow 49