WCDMA Fundamental(RAN) ISSUE 1.0[2].ppt

VCI 1

VCI 2

VCI 3

VCI 4

VPI 2

VPI 3

VPI 1

VPI 2

VPI 3

VPI 5

VPI 1

VPI 4

Physical Bearer 1

VCI 1

VCI 2

VCI 1

VCI 2

VP switching

VC switching

Input

Output

Physical bearer

VPI ,VC I

VPI ,VC I

1

VPI 1,VCI 2

4

VPI 2,VCI 4

1

VPI 1,VCI 1

3

VPI 3,VCI 3

1

VPI 4,XXX

3

VPI 5,XXX

VCI 1

VCI 2

ATM switching route table

Physical Bearer 4

Physical Bearer 3

Physicalbearer

VCI 3

VCI 4

Entry Number

1

2

3

HUAWEI TECHNOLOGIES CO., LTD.All rights reserved

AAL Adaptation Classification Different AALs are used to bear different kinds of servicesIn WCDMA system, AAL2 bearer and AAL5 bearer are mainly adopted

Service type A type B type C type DBit ratefixed variablevariablevariableConnectionConnection-oriented Connection-orientedConnection-oriented ConnectionlessAdaptation AAL1AAL2AAL3/4AAL5


AAL Adaptation Procedure

Physical Layer

VPI-10

VP I-20

VCI-100

VCI-101

VCI-100

VCI-101

ATM Cell

segmentation packing

Iub data

CBR

E1/T1/SDH(STM-1)

ATM Layer

AAL Layer

VBR-NRT

VBR-RT

VP I-10

IMA/UNI/STM-1


Chapter 1 3G SummaryChapter 2 CDMA FundamentalChapter 3 WCDMA System Architecture Chapter 4 WCDMA Air InterfaceChapter 5 WCDMA Signaling ProcedureChapter 6 WCDMA System Coding Method


Chapter 4 WCDMA Air Interface 4.1 Key Technologies 4.2 Radio Channels


WCDMA Communication Model Source decodingSource coding InterleavingdeinterleavingScrambling spreadingDespreadingModulation DemodulationTransmittingReceivingRadio channelDescrambling Deinterleaving &channel decoding

Channel coding & interleaving


Terms Bit, Symbol, Chip Bit : data after source coding Symbol: data after channel coding and interleavingChip: data after spreadingWCDMA chip rate: 3.84Mcps


WCDMA Source Coding AMR (Adaptive Multi-Rate) voice coding Multi-rate: 8 coding ratesbenefit multi-mode terminal designAdaptation: when cell load increases, the system will decrease speech rate of part of subscribers automatically so as to support more subscribers


WCDMA Channel Coding Purpose: enhance the correlation among symbols so as to recover the signal when interfered typesSpeech service: convolution code1/2, 1/3Data service: Turbo code


Spreading code: OVSFWalshOVSF: Orthogonal Variable Spreading Factor, generated by Walsh matrix SF = 1SF = 2SF = 4Cch,1,0 = (1)Cch,2,0 = (1,1)Cch,2,1 = (1,-1)Cch,4,0 =(1,1,1,1)Cch,4,1 = (1,1,-1,-1) Cch,4,2 = (1,-1,1,-1)Cch,4,3 = (1,-1,-1,1)


Purpose of OVSFFor uplink, OVSF is used to separate different services of one connection For downlink, OVSF is used to separate different connections

Typical serviceData rateDownlink SFUplink SFAMR12.2+3.412864Modem28.8k28.8+3.4643212.2kAMR & 64k packet data12.2+64+3.4321612.2kAMR & 144k packet data12.2+144+3.416812.2kAMR & 384k packet data12.2+384+3.484


Scrambling code: GOLD sequence For uplink, scrambling code is used to separate different connection Uplink: 224 long scrambles and 224 short scramblesFor downlink, scrambling code is used to separate different cellDownlink: 262143 (2 181) scrambles, but only 8192 scrambles( from 0 to 8191) are adopted at present The length of scrambling code is 38400 chips


PSC and SSCDL scrambleSet 0Set 1Set 511PSC 0SSC 1SSC 15PSC51116SSC511161SSC51116158192 scrambles512 sets1 PSC and 15 SSCs in each setOnly primary scrambles are adopted at present


WCDMA Modulation Functions of modulation Different modulation methods corresponding to different transmitting abilities in air interfaceR99/R4: adopt QPSKDL max data rate is 2.7MbpsHSDPA: adopt 16QAMDL max data rate is 14.4Mbps


WCDMA Transmit and Receive Technology Diversity technologyovercome signal fading Space diversity: the horizontal distance of two diversity antennas is greater than 10 wavelengthPolarization diversity: the polarization direction of two receiving antennas is orthogonal Transmitting diversity: provide diversities for terminals Receiving diversity: RAKE receiver


Spectrum Analysis of Spreading & Despreading


RAKE ReceiverFront receiver1st path2nd path3rd path delay evaluator Compute time-delay and phase deflexion Signal composerComposed signaltts(t)s(t)


Near-far effect in CDMAABP()P()P()P()Received power from user AP()DespreadingTransmission power of user AReceived power by NodeBThe user A can communicate successfullyReceived power from user BTransmission power of user BThe user B is submerged because of strong interference from user A


WCDMA Fast Power Control The rate of power control can be up to1500 times per second, which is faster than that of fading, thus, it can overcome shadow fading and fast fading effectively Decrease interference of system, and increase system capacity and qualitySave power, and expand conversational time


Classification of HandoverHard handoverSoft handoverIntra-frequency hard handoverInter-frequency hard handoverInter-system handoverSoft handoverSofter handover


WCDMA HandoverSoft handoverFeaturesPeculiar in CDMA system, only happens among cells with the same frequency Establish a radio link with target cell first, and then disconnect that with source cell, thus, it can avoid communication gapSoft handover occupies more system resource than hard handoverIf two cells which are performing soft handover belong to the same NodeB, maximum ratio combining can be performed in uplink, it is called softer handover


Softer HandoverWhen the two cells in soft handover belong to the same NodeB, the handover is softer handover.Softer handover has higher priority in handover schemes because it has larger gain than soft handover.


WCDMA HandoverHard Handover Features Disconnect the link of source cell first, and then establish a new link with target cellGAP of communicationNon-CDMA system can only perform hard handover


Application of Hard Handover in 3GIntra-frequency hard handoverWhen inter-RNC SHO cant be executed or is not allowed.

Inter-frequency hard handoverNeeded in certain areas due to network planningLoad balance between frequencies

Inter-system handover2G-3G smooth evolutionThe finite coverage range of initial phase of 3G


Chapter 4 WCDMA Air Interface 4.1 Key Technologies 4.2 Radio Channels


Channel Classification According to protocol structure, WCDMA channels can be classified as:Logical channel: directly bear user dataControl channel Traffic channel Transport channel: services Physical layer provides for MAC layer Dedicated channelCommon channelPhysical channel: the final embodiment of all kinds of information transferred in air interface


Classification of Logical ChannelTraffic ChannelTCHControl ChannelCCH Dedicated Traffic Channel DTCH Common Traffic Channel CTCH Broadcast Control Channel BCCH Paging Control Channel PCCH Dedicated Control Channel DCCH Common Control Channel CCCH


Classification of Transport ChannelBroadcast Channel BCHForward Access Channel FACHPaging Channel PCHRandom Access Channel RACHDedicated Channel DCHDCH includes uplink and downlinkCommon transport channelDedicated transport channel


Classification of Physical ChannelPhysical channel includes uplink and downlink Physical channel are defined by a specific carrier frequency , code( channellization code or scrambling code), phase, etcRadio frame & slot Data Slot #0 Slot #1 Slot #14 Tslot = 2560 chips T = 10 ms, 38400chips Data Slot #i


Functions of Physical Channel

Node B

UE HS-DPCCH High Speed Dedicated Physical Control ChannelHS-SCCH High Speed Shared Control ChannelHS-PDSCH High Speed Physical Downlink Shared Channel High speed downlink shared channel


Functions of Common Physical ChannelSCH: used for cell search Consists of P-SCH and S-SCHCPICH: used for scrambling code identification Consists of P-CPICH and S-CPICHP-CPICH: channellization code is Cch,256,0(fixed) power-benchmark of other downlink physical channels S-CPICH: mainly used in smart antenna P-CCPCH: used to bear system information Channellization code is Cch,256,1(fixed) The channels above must be configured and each of them can only be configured one in every cell


Functions of Common Physical ChannelS-CCPCH: used to carry the FACH and PCH PICH: used to carry the paging indicators ,always associated with a S-CCPCH PRACH: used to carry the RACH 15 access slots per two frames and they are spaced 5120 chips apart AICH: used to carry the acquisition indicators always associated with a PRACHThe channels above must be configured in each cell


Functions of Dedicated Physical ChannelUplink DPDCH: used to carry the DCH transport channel DPCCH: used to carry control information generated at Layer 1I/Q code multiplexed within each radio frame Downlink within one downlink DPCH, dedicated data generated at Layer 2 and abovecan be seen as a time multiplex of a downlink DPDCH and a downlink DPCCH Multicode transmission may be employed in the downlink for example, the CCTrCH is mapped onto several parallel downlink DPCHs using the same spreading factor


Functions of HSDPA Physical ChannelHS-PDSCH: bear traffic data, the maximum data rate of one channel is 960KbpsHS-SCCH: bear signaling of HS-PDSCH HS-DPCCH: signaling transfer and power control HSDPA maximum data rate: 960Kbps1514.4Mbps




Terms: RABRBRLRABRadio Access BearerRBRadio Bearer RLRadio Link


Calling Procedure


Cell Setup Procedure


Calling Procedure WCDMA calling procedure mainly contains:RRC connection establishment Iu interface signaling connection establishment Authentication optionalSecurity modeoptionalRAB establishment


RRC Connection Establishment (on DCH) RRCUENodeBRNCRRCRRC


Iu Interface Signaling Connection EstablishmentRRCInitial DTRRCSCCPUENodeBCNRANAP/SCCPRANAP/SCCPInitial UE MessageConnect ReqConnect ConfirmRNCSCCPIu interface signaling connection establishment means SCCP connection establishment In Iu interface, signaling of radio network layer report RANAP message and NAS message, and NAS message in RANAP is embodied as Direct Transfer message


RAB Establishment (1)


RAB Establishment (2)RAB bears speech, data and multimedia services between UE and CNRAB establishment procedure mainly consists of AAL2 PATH establishment in Iu interface and Iub interface, and the radio resource reconfiguration procedure of RAN and UEUENodeBCNRANAPRAB Ass RspRNCRANAPNBAPNBAPRL Recfg CommitRRCRRCRB SetupRRCRRCRB Setup complete


Example: Called Procedure(1)


Example: Called Procedure(2)




Chapter 6 WCDMA System Coding Method6.1 Equipment Coding 6.2 Area Coding


MSISDN CCCountry Code, for example, China is 86NDCNational Destination Code, for example, 135, 139 and so onSNSubscriber NumberMSISDN common format:86-13X-H0 H1 H2 H3 ABCDCCNDCSNNational (significant)Mobile numberMobile station internationalISDN number


IMSIMCCMobile Country Code, China is 460MNCMobile Network Code, for example, China mobile is 00 or 04MSIN: the unique identification code of MS within one PLMNNMSI: the unique identification code of MS within one country Not more than 15 digits3 digits2 digitsIMSIMCCMNCMSINNMSI


IMEI TACType Approval Code, distributed by Europe Type Authorize CentreFACFinal Assembly Code, coded by manufacturer SNRSerial Number, identifies every mobile equipment of TAC and FACsparestandby bit, when UE send information, it is set to be 0For example: 35495000251505IMEI15 numbersTACSPFACSNR6 numbers2 numbers 6 numbers1 number


TMSI TMSI is a temporary identification distributed in VLR for the sake of system security, uniquely responding to IMSI within VLRTMSI distribution rule: Contains 4 bytes, is composed of 8 hexes, its structure can be determined by operator according to local situation


MSC Meanings of CC and NDC are the same with regulation of MSISDNLSPLocally Significant Part, determined by operator VLR/SGSN/GGSN number is similar to MSC numberCCNDCLSPMSC number


HLR NumberMeanings of CC and NDC are the same with regulation of MSISDN, but all the latter 4 bits are 0CCNDCH0 H1 H2 H3 0000HLR number


PS Domain Numbering Equipment addressAPN:www.huawei.com.mnc.mcc.gprsAPN network identificationAPN operator identification 10.136.20.15SGSN


Chapter 6 WCDMA System Coding Method6.1 Equipment Coding 6.2 Area Coding


Area Definition cellService areaMSC areaSGSN areaLocation areaRoute areaPLMNPLMN


PLMN IDMCCMobile Country Code, say, China is 460MNCMobile Network Code, say, China mobile is 00 or 04PLMN Identifier: used to uniquely identify a PLMN network in the worldMCCMNCPLMN ID


LAIMCC Mobile Country Code, say, China is 460MNC Mobile Network Code, say, China mobile is 00 or 04LAC Location Area Code, consists of 2 bytes (BCD code, hex) 0000 and FFFE cannot be adopted By detecting LAI, MS/UE may perform Location Area Update procedureSpeech service is paging as a unit of LA


RAIMCC Mobile Country Code, say, China is 460MNCMobile Network Code, say, China mobile is 00 or 04LAC Location Area Code, consists of 2 bytes (BCD code, hex) 0000 and FFFE cannot be adopted RACRouting Area Code, consists of 1 byte (BCD code, hex)MCCMNCRouting Area IdentificationLACRACBy detecting RAI, MS/UE may perform Routing Area Update procedurePacket service is paging as a unit of RA


SAIMCCMobile Country Code, say, China is 460MNCMobile Network Code, say, China mobile is 00 or 04LAC Location Area Code, consists of 2 bytes (BCD code, hex) 0000 and FFFE cannot be adopted SACService Area Code, consists of 2 bytes (BCD code, hex) The Service Area Identifier is used to identify an area consisting of one or more cells belonging to the same Location Area. Service Area can be used for indicating the location of a UE to the CNMCCMNCService Area IdentifierLACSAC

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20402070 TACSETACSAMPSNMT450900 **AMPS800MHzAMPS **TACS900MHzETACSNTACS

80GSMADCJDCGSMcdmaIS-95D-AMPSPDC,GSM **DAMPS IS-54/IS-136800MHzTDMA

3G3 GenerationITU1985FPLMTSFuture Public Land Mobile Telecommunication System1996IMT-2000International Mobile Telecommunication-2000-20002000MHz2000kbps2000IMT-2000230MHz18852025MHz21102200MHz230MHz19802010 MHz21702200MHzFDDTDDWRC92

IMT2000 FDD19201980MHz21102170MHzTDD18801920MHz20102025MHz FDD17551785MHz18501880MHz TDD23002400MHz 19802010MHz21702200MHz

19001980MHz20102025MHz21102170MHz155MHz1-23G18501990MHzPCS215MHz25MHzPCSIMT-2000IMT-2000PCS

1893.51919.6MHzPHS260MHz15MHz135MHz3G19201980MHz21102170MHz20102025MHz

ITU170MHz

The graph: Conversational, streaming, interactive, background

Sensitivity of error| \ |__\__sensitivity of delay. Multimedia LCS: Location Service Radio environment is very complex. The transmission signal of BS reaches the UE through all kinds of paths including reflection,scattering and diffraction. The received signals is different in power and delay time. But the multi-path signal can be used by RAKE receiver through multi-path combination.In third generation mobile communication systems, TD-SCDMA adopts time division duplex (TDD); WCDMA and cdma2000 adopt frequency division duplex (FDD). WCDMA FDD mode has been consolidated with TD-SCDMA.Multiple Access to distinguish users/channels. A CDMA receiver separates the signals by means of a correlator that uses the particular binary sequence to despread the signal and collect the energy of the desired signal. Other users' signals, whose spreading codes do not match this sequence, are not despread in bandwidth and, as a result, contribute only to the noise. These signals represent a self-interference generated by the system.

Self-interference arises from the presence of delayed replicas of signal due to multipath. The delays cause the spreading sequences of the different users to lose their orthogonality, as by design they are orthogonal only at zero phase offset. Hence in despreading a given user's waveform, nonzero contributions to that user's signal arise from the transmissions of the other users in the network. This is distinct from both TDMA and FDMA, wherein for reasonable time or frequency guardbands, respectively, orthogonality of the received signals can be preserved. The near-far problem arises from the fact that signals closer to the receiver of interest are received with smaller attenuation than are signals located further away. Therefore the strong signal from the nearby transmitter will mask the weak signal from the remote transmitter. In TDMA and FDMA, this is not a problem since mutual interference can be filtered. In CDMA, however, the near-far effect combined with imperfect orthogonality between codes (e.g. due to different time shifts), leads to substantial interference. Accurate and fast power control appears essential to ensure reliable operation of multi-user DS-CDMA systems.

TDM

PCU: packet control unitSCP: service control pointCGcharging gatewayBG: border gateway()PSTN:public switch telecommunicationSCE: service create environment()

VMSC: visitP-CSCF: (Proxy-Call State Control Function) I-CSCF : (Interrogating-CSCF) S-CSCF: (Serving-CSCF) HSS: (Home Subscriber Server) MGCF: Media Gateway Control FunctionMRF: Multimedia Resource Function MRFC:MRFP:

1)What is IMS?The IP Multimedia CN subsystem comprises all CN elements for provision of multimedia services. This includes the collection of signalling and bearer related network elements as defined in TS 23.002 [1].CSCF,MGCF,MRF; IP multimedia services are based on an IETF defined session control capability which, along with multimedia bearers, utilises the PS domain (this may include an equivalent set of services to the relevant subset of CS Services).

2)The function of IMS?The IM CN subsystem should enable the convergence of, and access to, voice, video, messaging, data and web-based technologies for the wireless user, and combine the growth of the Internet with the growth in mobile communications.(

3)Relationship with PS and CSThe IP multimedia subsystem utilizes the PS domain to transport multimedia signalling and bearer traffic. The PS domain maintains the service while the terminal moves and hides these moves from the IP multimedia subsystem.The IP multimedia subsystem is independent of the CS domain although some network elements may be common with the CS domain

RRC signaling processing and resource management.

Logical channels are classified according to services (control -> signaling, traffic -> data)

Transport channels are classified according to transport method (common & dedicated)

1RANAPCSPSCNRNCRABIUSRNSUEID2IUIURAB3SS7SS7

MTP3B provides message routing between signalling points in the SS7 network.

SCCP provides connectionless and connection-oriented network services above MTP Level 3. While MTP Level 3 provides point codes to allow messages to be addressed to specific signaling points, SCCP provides subsystem numbers to allow messages to be addressed to specific applications (called subsystems) at these signaling points. 5NBAPNODEBNBAPRNCSPUNCPNCPNODEBCCPCCP4IUB FPIU-BFMRRACHCPCHFACHPCHDSCHDCH3ATMATMSAAL UNIATMUNIAAL5SSCOPSSCF-UNIAAL5ATMAAL2VCIU-BAAL2FP2ATMAALATM ATMVPI/VCIATMVPI/VCIOAM VPI/VCIPTVPI/VCIVPI/VCISETUP1ATMATMATMIU-BIUBE1 ATMAsynchronous Transfer Mode Asynchronous Transfer Mode (ATM) is a cell relay network protocol which encodes data traffic into small (53 byte; 48 bytes of data and 5 bytes of header information) fixed-sized cells.

ATM is a connection-oriented technology, in which a connection is established between the two endpoints before the actual data exchange begins. 1UNI-UNIATMUNIUNIP-UNIPUNIPUNI2NNINNINNINNIPNNINNIPNNINNINo.7ISDNBISUPPNNIUNIUNI ATMATMATMTCPM1 ITU-TSDH155M622M51MPDHE1ATM2 TCSDH/SONETPDHATMATM TCITU-THEC32CRC8 HEC328X8X2X1CRC01010101HEC ATMWhy virtual circuits? advantage of the use of virtual circuits is the ability to use them as a multiplexing layer, allowing different services

GFC:Generic Flow Control VPI:Virtual Path Identifier VCI:Virtual Channel Identity PTI:Payload Type Indicator CLP:Cell Loss Priority HEC:Head Error Control PVC256 ATMATMATMVPI/VCIVPI/VCICLPHECATMATMATMATMATMVCVCIATMATMVPATMVPVCVP/VCVPVPIVCVCIVPVPVCATMVPIVCIVPIVCIVPI/VCIVP/VCVPI/VCIVP/VC1AAL1 AAL12AAL2 AAL2VBRBVBRAALITU-TAAL1AAL2VODMPEGTSAAL5AAL13AAL3/4 AAL3/4AAL-SDUAALAALAAL-SDUAAL4AAL5 AAL5B-ISDNUNIATMAAL5AALAAL5AAL3/4AAL5MIDSIDSilence Descriptorbenefit multi-mode terminal design- compatible with current mobile communication system (GSM, IS-95, PDC and so on), thus, will

bit9NbitN8BIT8 tail bits with binary value 0 shall be added to the end of the code block before encoding.Turbo6bitParallel Concatenated Convolutional Code (PCCC) The first three tail bits shall be used to terminate the first constituent encoder (upper switch of figure 4 in lower position) while the second constituent encoder is disabled. The last three tail bits shall be used to terminate the second constituent encoder (lower switch of figure 4 in lower position) while the first constituent encoder is disabled.AMRCCAChannelisation code uses OVSF code, for keeping the orthogonality of different subscriber physical channels. OVSF can be defined as the code tree illustrated in the following diagram.Channelisation code is defined as Cch,SF, k,, where, SF is the spreading factor of the code, and k is the sequence of code, 0kSF-1.Each level definition length of code tree is SF channelisation code, and the left most value of each channelisation code character is corresponding to the chip which is transmitted earliest.3.4kbps for control signalData rate lower, need higher SF

In DL, OVSF code is limited, hence larger SF save code resources. GOLDMMGOLDMGOLD GOLDMGOLD38400chip256chipGOLD

512 set115n=16*ii=0...511I16*i+k1...1551264group8j8*j+16*kj=0...63k=0...7

Convert needed signal into certain format which is fit to transfer through radio channels

For the digitized signals input to the baseband, despreading and integration of subscriber data symbols is completed via the correlator and local code generator, specifics are as follows:Channel estimator uses the pilot signal to estimate the channel status; Phase spinner deletes the phase affection caused by the channel from the received signal according to the estimated channel status. The function of delay estimation is to obtain the signal energy distribution at different delay positions via the matching filter, and identify the multipaths with large energy, and allocate their time values to different receive paths of the RAKE receiver.The delay equalizer is to compensate the difference of symbol arriving time for each path.At last, the RAKE combiner adds the symbols after channel compensation to provide multipath diversity to withstand fading.From the aspect of realization, the processing of RAKE receiver can be based on either chip level or symbol level.The correlator, local code generator and matching filter belong to the chip level processing, and this is generally realized via ASIC device; Channel estimation, phase spinning and combination belong to symbol level processing, and this is realized via DSP.Though the realization methods and functions of the RAKE receiver between UE and BTS are different, the principles are complete the same.The near-far problem arises from the fact that signals closer to the receiver of interest are received with smaller attenuation than are signals located further away. Therefore the strong signal from the nearby transmitter will mask the weak signal from the remote transmitter. In TDMA and FDMA, this is not a problem since mutual interference can be filtered. In CDMA, however, the near-far effect combined with imperfect orthogonality between codes (e.g. due to different time shifts), leads to substantial interference. Accurate and fast power control appears essential to ensure reliable operation of multi-user DS-CDMA systems. QOSIntra-frequency hard handover includes two instances:(1)handover between two RNCs without IUR interface(2)code handover in the cell

RAT:Radio Access Technology

For soft handover, selection combination in uplink completes in RNC.For softer handover, maximum ratio combination in uplink completes in NodeB (NDDM:NodeB Dedicated DeModulator unit)Equal gain combinationRRCRNCRNC/IurFDDTDD FFSDCH CDMA

Intra-frequency hard handover includes two instances:(1)handover between two RNCs without IUR interface(2)code tree reconstruction

Based on whether it bears control plane service or user plane service, it can be divided into control channel and traffic channelBased on whether it is used to transfer the dedicated information of one user or common information of all users, transport channels are divided into dedicated channels and common channels

Cs^i,ki=0,1,...,63k=0,1,2,...,14SSC25616SCHSSC64PSCPSC=1-1-111PSCPSC384*6384*7RABThe service that the access stratum provides to the non-access stratum for transfer of user data between User Equipment and CNRBThe service provided by the layer2 for transfer of user data between User Equipment and Serving RNCRLA "radio link" is a logical association between single User Equipment and a single UTRAN access point. Its physical realization comprises one or more radio bearer transmissionsSTEP8 7 1CN2 SCCPUELA

DT = Direct Transfer

SCCP: Connection Confirm (CC) (Success) Connection Reject (CJ) (Reject) RABRABRABTFCIRNCNodeBRL reconfigure Prepare DCHRLNodeBPrepareRABUEDCHRRCDCHDCH

RABRABRABTFCIRNCNodeBRL reconfigure Prepare DCHRLNodeBPrepareRABUEDCHRRCDCHDCH

MSISDN: Mobile Station International ISDN Number

ISDN: Integrated Services Digital Network International Mobile Subscriber Identity

MSIN: Mobile Subscriber Identification Number (MSIN), identifies the mobile subscriber within a GSM PLMN.

NMSI: National Mobile Subscriber/Station Identity, consist of MNC and MSIN. IMEIinternational mobile equipment identify ,,*#06#

Temporary Mobile Subscriber Identity.

VLR Visitor Location Register GGSN Gateway GPRS Support Group

Home Location Register Identification for routing purposeMSCs, GSNs and location registers are identified by international PSTN/ISDN numbers and/or Signalling Point Codes ("entity number", i.e., "HLR number", "VLR number", "MSC number", "SGSN number" and "GGSN number") in each GSM PLMN.Additionally SGSN, GGSN are identified by GSN Addresses. These are the SGSN Address and the GGSN Address. A GSN Address shall be composed as shown in figure9.Figure 9: Structure of GSN AddressThe GSN Address is composed of the following elements:1)The Address Type which is a fixed length code (of 2 bits) identifying the type of address that is used in the Address field.2)Address Length which is a fixed length code (of 6 bits) identifying the length of the Address field.3)Address is a variable length field with either an IPv4 address or an IPv6 address.Address Type 0 and Address Length 4 are used when Address is an IPv4 address.Address Type 1 and Address Length 16 are used when Address is an IPv6 address.The IP v4 address structure is defined in RFC 791.The IP v6 address structure is defined in RFC 2373.3GLA/RASALA/RASASACNUESAPublic Land Mobile Network Location Area IdentificationRoute Area IdentificationSALASARASACSPSSA

Service Area Identification

WCDMA Fundamental(RAN) ISSUE 1.0[2].ppt

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Transcript of WCDMA Fundamental(RAN) ISSUE 1.0[2].ppt