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1、Technical Specification TS 25.211 V2.5.0(1999-10)3rd Generation Partnership Project(3GPP);Technical Specification Group(TSG)Radio Access Network(RAN);Working Group 1(WG1);Physical channels and mapping of transport channels ontophysical channels(FDD)The present document has been developed within the
2、3rd Generation Partnership Project(3GPP TM)and may be further elaborated for the purposes of 3GPP.The present document has not been subject to any approval process by the 3GPP Organisational Partners and shall not be implemented.This Specification is provided for future development work within 3GPP
3、only.The Organisational Partners accept no liability for any use of thisSpecification.Specifications and reports for implementation of the 3GPP TM system should be obtained via the 3GPP Organisational Partners Publications Offices.TSGR1#7(99)g08TSG RAN#5(99)475TSG RAN Meeting No.5OCTOBERKyongju,Kore
4、aPhysical channels.(FDD)3GPPTS 25.211 V2.5.0(1999-10)3Reference(.PDF)Keywords3GPPPostal addressOffice addressInternetsecretariat3gpp.orgIndividual copies of this deliverablecan be downloaded fromhttp:/www.3gpp.orgCopyright NotificationNo part may be reproduced except as authorized by written permiss
5、ion.The copyright and the foregoing restriction extend to reproduction in all media.All rights reserved.Physical channels.(FDD)3GPPTS 25.211 V2.5.0(1999-10)4ContentsContents.4Intellectual Property Rights.5Foreword.51Scope.52References.63Definitions,symbols and abbreviations.63.1Definitions.63.2Symbo
6、ls.63.3Abbreviations.64Transport channels.74.1Dedicated transport channels.74.1.1DCH Dedicated Channel.74.2Common transport channels.74.2.1BCH Broadcast Channel.84.2.2FACH Forward Access Channel.84.2.3PCH Paging Channel.84.2.4RACH Random Access Channel.84.2.5CPCH Common Packet Channel.84.2.6DSCH Dow
7、nlink Shared Channel.85Physical channels.85.1The physical resource.85.2Uplink physical channels.95.2.1Dedicated uplink physical channels.95.2.2Common uplink physical channels.125.2.2.1Physical Random Access Channel(PRACH).125.2.2.1.1RACH transmission.125.2.2.1.2RACH preamble part.125.2.2.1.3RACH mes
8、sage part.135.2.2.2Physical Common Packet Channel(PCPCH).145.2.2.2.1CPCH transmission.145.2.2.2.2CPCH access preamble part.145.2.2.2.3CPCH collision detection preamble part.155.2.2.2.4CPCH power control preamble part.155.2.2.2.5CPCH message part.155.3Downlink physical channels.155.3.1Downlink Transm
9、it Diversity.155.3.1.1Open loop transmit diversity.165.3.1.1.1Space time block coding based transmit antenna diversity(STTD).165.3.1.1.2Time Switched Transmit Diversity for SCH(TSTD).175.3.2Dedicated downlink physical channels.175.3.2.1STTD for DPCH.215.3.2.2Dedicated channel pilots with closed loop
10、 mode transmit diversity.225.3.2.3DL-DPCCH for CPCH.225.3.3Common downlink physical channels.225.3.3.1Common Pilot Channel(CPICH).225.3.3.1.1Primary Common Pilot Channel.235.3.3.1.2Secondary Common Pilot Channel.235.3.3.2Primary Common Control Physical Channel(P-CCPCH).245.3.3.2.1Primary CCPCH struc
11、ture with STTD encoding.245.3.3.3Secondary Common Control Physical Channel(S-CCPCH).255.3.3.3.1Secondary CCPCH structure with STTD encoding.275.3.3.4Synchronisation Channel(SCH).28Physical channels.(FDD)3GPPTS 25.211 V2.5.0(1999-10)55.3.3.4.1SCH transmitted by TSTD.285.3.3.5Physical Downlink Shared
12、Channel(PDSCH).295.3.3.6Acquisition Indication Channel(AICH).305.3.3.7Page Indication Channel(PICH).306Mapping of transport channels onto physical channels.327Timing relationship between physical channels.327.1General.327.2PICH/S-CCPCH timing relation.337.3PRACH/AICH timing relation.347.4PCPCH/AICH
13、timing relation.357.5DPCH/PDSCH timing.367.6DPCCH/DPDCH timing relations.367.6.1Uplink.367.6.2Downlink.367.6.3Uplink/downlink timing at UE.36History.37Intellectual Property RightsForewordThis Technical Specification has been produced by the 3GPP.The contents of the present document are subject to co
14、ntinuing work within the TSG and may change following formalTSG approval.Should the TSG modify the contents of this TS,it will be re-released by the TSG with an identifyingchange of release date and an increase in version number as follows:Version 3.y.zwhere:xthe first digit:1presented to TSG for in
15、formation;2presented to TSG for approval;3Indicates TSG approved document under change control.ythe second digit is incremented for all changes of substance,i.e.technical enhancements,corrections,updates,etc.zthe third digit is incremented when editorial only changes have been incorporated in the sp
16、ecification;1 ScopeThis specification describes the characteristics of the Layer 1 transport channels and physicals channels in the FDDmode of UTRA.The main objectives of the document are to be a part of the full description of the UTRA Layer 1,andto serve as a basis for the drafting of the actual t
17、echnical specification(TS).Physical channels.(FDD)3GPPTS 25.211 V2.5.0(1999-10)62 ReferencesThe following documents contain provisions which,through reference in this text,constitute provisions of the presentdocument.1 TS 25.201:“Physical layer-general description”2 TS 25.211:“Physical channels and
18、mapping of transport channels onto physical channels(FDD)”3 TS 25.212:“Multiplexing and channel coding(FDD)”4 TS 25.213:“Spreading and modulation(FDD)”5 TS 25.214:“Physical layer procedures(FDD)”6 TS 25.221:“Transport channels and physical channels(TDD)”7 TS 25.222:“Multiplexing and channel coding(T
19、DD)”8 TS 25.223:“Spreading and modulation(TDD)”9 TS 25.224:“Physical layer procedures(TDD)”10 TS 25.231:“Measurements”11 TS 25.301:“Radio Interface Protocol Architecture”12 TS 25.302:“Services Provided by the Physical Layer”13 TS 25.401:“UTRAN Overall Description”3 Definitions,symbols and abbreviati
20、ons3.1 DefinitionsFor the purposes of the present document,the following terms and definitions given in.and the following apply.:.example:text used to clarify abstract rules by applying them literally.3.2 SymbolsFor the purposes of the present document,the following symbols apply:3.3 AbbreviationsFo
21、r the purposes of the present document,the following abbreviations apply:AIAcquisition Indicatior AICHAcquisition Indication Channel APAccess Preamble BCHBroadcast Channel CCPCHCommon Control Physical Channel CCTrCHCoded Composite Transport ChannelPhysical channels.(FDD)3GPPTS 25.211 V2.5.0(1999-10)
22、7 CDCollision Detection CPCHCommon Packet Channel CPICHCommon Pilot Channel DCHDedicated Channel DPCCHDedicated Physical Control Channel DPCHDedicated Physical Channel DPDCHDedicated Physical Data Channel DSCHDownlink Shared Channel FACHForward Access Channel FBIFeedback Information MUIMobile User I
23、dentifier PCHPaging Channel P-CCPCHPrimary Common Control Physical Channel PCPCHPhysical Common Packet Channel PDSCHPhysical Downlink Shared Channel PIPage Indicatior PICHPage Indication Channel PRACHPhysical Random Access Channel PSCPrimary Synchronisation Code RACHRandom Access Channel RNCRadio Ne
24、twork Controller S-CCPCHSecondary Common Control Physical Channel SCHSynchronisation Channel SFSpreading Factor SFNSystem Frame Number SSCSecondary Synchronisation Code STTDSpace Time Transmit Diversity TFCITransport Format Combination Indicator TSTDTime Switched Transmit Diversity TPCTransmit Power
25、 Control UEUser Equipment UTRANUMTS Terrestrial Radio Access Network4 Transport channels Transport channels are the services offered by Layer 1 to the higher layers.General concepts about transport channelsare described in 12.A transport channel is defined by how and with what characteristics data i
26、s transferred over the air interface.A generalclassification of transport channels is into two groups:Dedicated Channels Common Channels4.1 Dedicated transport channels There exists only one type of dedicated transport channel,the Dedicated Channel(DCH).4.1.1 DCH Dedicated Channel The Dedicated Chan
27、nel(DCH)is a downlink or uplink transport channel.The DCH is transmitted over the entire cell orover only a part of the cell using beam-forming antennas.The Dedicated Channel(DCH)is characterized by thepossibility of fast rate change(every 10ms),fast power control and inherent addressing of UEs.4.2
28、Common transport channelsThere are six types of common transport channels:BCH,FACH,PCH,RACH,CPCH and DSCH.Physical channels.(FDD)3GPPTS 25.211 V2.5.0(1999-10)84.2.1 BCH Broadcast Channel The Broadcast Channel(BCH)is a downlink transport channel that is used to broadcast system-and cell-specificinfor
29、mation.The BCH is always transmitted over the entire cell with a low fixed bit rate.4.2.2 FACH Forward Access Channel The Forward Access Channel(FACH)is a downlink transport channel.The FACH is transmitted over the entire cell orover only a part of the cell using beam-forming antennas.The FACH uses
30、slow power control.4.2.3 PCH Paging Channel The Paging Channel(PCH)is a downlink transport channel.The PCH is always transmitted over the entire cell.Thetransmission of the PCH is associated with the transmission of a physical layer signal,the Paging Indicator,to supportefficient sleep-mode procedur
31、es.4.2.4 RACH Random Access Channel The Random Access Channel(RACH)is an uplink transport channel.The RACH is always received from the entire cell.The RACH is characterized by a limited size data field,a collision risk and by the use of open loop power control.4.2.5 CPCH Common Packet Channel The Co
32、mmon Packet Channel(CPCH)is an uplink transport channel.The CPCH is a contention based random accesschannel used for transmission of bursty data traffic.CPCH is associated with a dedicated channel on the downlink whichprovides power control for the uplink CPCH.4.2.6 DSCH Downlink Shared Channel The
33、downlink shared channel (DSCH)is a downlink transport channel shared by several UEs The DSCH is associatedwith a DCH.5 Physical channels Physical channels typically consist of a three-layer structure of superframes,radio frames,and time slots,although this isnot true for all physical channels.Depend
34、ing on the symbol rate of the physical channel,the configuration of radioframes or time slots varies.-Superframe:A Superframe has a duration of 720ms and consists of 72 radio frames.The superframe boundariesare defined by the System Frame Number(SFN):-The head radio frame of superframe:SFN mod 72=0.
35、-The tail radio frame of superframe:SFN mod 72=71.-Radio frame:A Radio frame is a processing unit which consists of 15 time slots.-Time slot:A Time slot is a unit which consists of fields containing bits.The number of bits per time slotdepends on the physical channel.5.1 The physical resource The ba
36、sic physical resource is the code/frequency plane.In addition,on the uplink,different information streams may betransmitted on the I and Q branch.Consequently,a physical channel corresponds to a specific carrier frequency,code,and,on the uplink,relative phase(0 or/2).Physical channels.(FDD)3GPPTS 25
37、.211 V2.5.0(1999-10)95.2 Uplink physical channels5.2.1 Dedicated uplink physical channels There are two types of uplink dedicated physical channels,the uplink Dedicated Physical Data Channel(uplinkDPDCH)and the uplink Dedicated Physical Control Channel(uplink DPCCH).The DPDCH and the DPCCH are I/Q c
38、ode multiplexed within each radio frame(see 4).The uplink DPDCH is used to carry dedicated data generated at Layer 2 and above,i.e.the dedicated transport channel(DCH).There may be zero,one,or several uplink DPDCHs on each Layer 1 connection.The uplink DPCCH is used to carry control information gene
39、rated at Layer 1.The Layer 1 control information consistsof known pilot bits to support channel estimation for coherent detection,transmit power-control(TPC)commands,feedback information(FBI),and an optional transport-format combination indicator(TFCI).The transport-formatcombination indicator infor
40、ms the receiver about the instantaneous parameters of the different transport channelsmultiplexed on the uplink DPDCH,and corresponds to the data transmitted in the same frame.It is the UTRAN thatdetermines if a TFCI should be transmitted,hence making it is mandatory for all UEs to support the use o
41、f TFCI in theuplink.There is one and only one uplink DPCCH on each Layer 1 connection.Figure 1 shows the frame structure of the uplink dedicated physical channels.Each frame of length 10 ms is split into 15slots,each of length Tslot=2560 chips,corresponding to one power-control period.A super frame
42、corresponds to 72consecutive frames,i.e.the super-frame length is 720 ms.Figure 1:Frame structure for uplink DPDCH/DPCCH.The parameter k in Figure 1 determines the number of bits per uplink DPDCH/DPCCH slot.It is related to the spreadingfactor SF of the physical channel as SF=256/2k.The DPDCH spread
43、ing factor may thus range from 256 down to 4.Note that an uplink DPDCH and uplink DPCCH on the same Layer 1 connection generally are of different rates,i.e.have different spreading factors and different values of k.The exact number of bits of the different uplink DPCCH fields(Npilot,NTFCI,NFBI,and N
44、TPC)is determined in Table 2.The field order and total number of bits/slot are fixed,though the number of bits per field may vary during a connection.The values for the number of bits per field are given in Table 1 and Table 2.The channel bit and symbol rates given inTable 1 are the rates immediatel
45、y before spreading.The pilot patterns are given in Table 3 and Table 4,the TPC bitpattern is given in Table 5.Pilot Npilot bitsTPC NTPC bitsDataNdata bitsSlot#0Slot#1Slot#iSlot#14Frame#0Frame#1Frame#iFrame#71Tslot=2560 chips,10*2k bits(k=0.6)Tf=10 msTsuper=720 msDPDCHDPCCHFBI NFBI bitsTFCI NTFCI bit
46、sPhysical channels.(FDD)3GPPTS 25.211 V2.5.0(1999-10)10The NFBI bits are used to support techniques requiring feedback between the UE and the UTRAN Access Point(=celltransceiver),including closed loop mode transmit diversity and site selection diversity(SSDT).The exact details of theFBI field are sh
47、own in Figure 2 and described below.S fieldD fieldNFBIFigure 2:Details of FBI field.The S field is used for SSDT signalling,while the D field is used for FB Mode Transmit Diversity Signalling.Each ofthe S and D fields can be length 0,1 or 2,with a total FBI field size NFBI according to Table 2(DPCCH
48、 fields).Simultaneous use of SSDT power control and FB Mode Transmit Diversity requires that both the S and D fields be oflength 1.The use of these FBI fields is described in 5.Table 1:DPDCH fields.Slot Format#iChannel BitRate(kbps)Channel SymbolRate(ksps)SFBits/FrameBits/SlotNdata015152561501010130
49、30128300202026060646004040312012032120080804240240162400160160548048084800320320696096049600640640There are two types of Uplink Dedicated Physical Channels;those that include TFCI(e.g.for several simultaneousservices)and those that do not include TFCI(e.g.for fixed-rate services).These types are ref
50、lected by the duplicatedrows of Table 2.The channel bit and symbol rates given in Table 2 are the rates immediately before spreading.Table 2:DPCCH fields.Slot Format#iChannel BitRate(kbps)Channel SymbolRate(ksps)SFBits/FrameBits/SlotNpilotNTFCINFBINTPC015152561501062021151525615010800221515256150105