1、 ETSI TS 125 201 V15.0.0 (2018-07) Universal Mobile Telecommunications System (UMTS); Physical layer - general description (3GPP TS 25.201 version 15.0.0 Release 15) TECHNICAL SPECIFICATION ETSI ETSI TS 125 201 V15.0.0 (2018-07)13GPP TS 25.201 version 15.0.0 Release 15Reference RTS/TSGR-0625201vf00
2、Keywords UMTS ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice The present document can be downl
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7、written authorization of ETSI. The copyright and the foregoing restriction extend to reproduction in all media. ETSI 2018. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are trademarks of ETSI registered for the benefit of its Members. 3GPPTM and LTETMare trademarks of ETSI regist
8、ered for the benefit of its Members and of the 3GPP Organizational Partners. oneM2M logo is protected for the benefit of its Members. GSMand the GSM logo are trademarks registered and owned by the GSM Association. ETSI ETSI TS 125 201 V15.0.0 (2018-07)23GPP TS 25.201 version 15.0.0 Release 15Intelle
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11、g IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Trademarks The present document may include trad
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13、ent does not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks. Foreword This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP). The present document may refer to technical specifications or report
14、s using their 3GPP identities, UMTS identities or GSM identities. These should be interpreted as being references to the corresponding ETSI deliverables. The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under http:/webapp.etsi.org/key/queryform.asp. Modal verbs terminolog
15、y In the present document “shall“, “shall not“, “should“, “should not“, “may“, “need not“, “will“, “will not“, “can“ and “cannot“ are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of provisions). “must“ and “must not“ are NOT allowed in ETSI
16、 deliverables except when used in direct citation. ETSI ETSI TS 125 201 V15.0.0 (2018-07)33GPP TS 25.201 version 15.0.0 Release 15Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 4g31 Scope 5g32 References 5g33 Abbreviations . 6g34 General description of L
17、ayer 1 . 6g34.1 Relation to other layers . 6g34.1.1 General Protocol Architecture 6g34.1.2 Service provided to higher layers . 7g34.2 General description of Layer 1 . 8g34.2.1 Multiple Access 8g34.2.2 Channel coding and interleaving 8g34.2.3 Modulation and spreading 9g34.2.4 Physical layer procedure
18、s . 9g34.2.5 Physical layer measurements 10g34.2.6 Relationship of the physical layer functions . 10g35 Document structure of physical layer specification . 11g35.1 Overview 11g35.2 TS 25.201: Physical layer General description 11g35.3 TS 25.211: Physical channels and mapping of transport channels o
19、nto physical channels (FDD) 11g35.4 TS 25.212: Multiplexing and channel coding (FDD) . 11g35.5 TS 25.213: Spreading and modulation (FDD) 11g35.6 TS 25.214: Physical layer procedures (FDD) . 12g35.7 TS 25.215: Physical layer Measurements (FDD) 12g35.8 TS 25.221: Physical channels and mapping of trans
20、port channels onto physical channels (TDD) 12g35.9 TS 25.222: Multiplexing and channel coding (TDD) . 12g35.10 TS 25.223: Spreading and modulation (TDD) . 12g35.11 TS 25.224: Physical layer procedures (TDD). 13g35.12 TS 25.225: Physical layer Measurements (TDD) 13g35.13 TR 25.833: Physical layer ite
21、ms not for inclusion in Release 99 13g35.14 TR 25.944: Channel coding and multiplexing examples 13g3Annex A (informative): Preferred mathematical notations 14g3Annex B (informative): Change history . 15g3History 16g3ETSI ETSI TS 125 201 V15.0.0 (2018-07)43GPP TS 25.201 version 15.0.0 Release 15Forew
22、ord This Technical Specification (TS) has been produced by the 3rdGeneration Partnership Project (3GPP). The contents of the present document are subject to continuing work within the TSG and may change following formal TSG approval. Should the TSG modify the contents of the present document, it wil
23、l be re-released by the TSG with an identifying change of release date and an increase in version number as follows: Version x.y.z where: x the first digit: 1 presented to TSG for information; 2 presented to TSG for approval; 3 or greater indicates TSG approved document under change control. y the s
24、econd digit is incremented for all changes of substance, i.e. technical enhancements, corrections, updates, etc. z the third digit is incremented when editorial only changes have been incorporated in the document. ETSI ETSI TS 125 201 V15.0.0 (2018-07)53GPP TS 25.201 version 15.0.0 Release 151 Scope
25、 The present document describes a general description of the physical layer of the UTRA radio interface. The present document also describes the document structure of the 3GPP physical layer specifications, i.e. TS 25.200 series. The TS 25.200 series specifies the Uu point for the 3G mobile system,
26、and defines the minimum level of specifications required for basic connections in terms of mutual connectivity and compatibility. 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document. - References are either spec
27、ific (identified by date of publication, edition number, version number, etc.) or non-specific. - For a specific reference, subsequent revisions do not apply. - For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-s
28、pecific reference implicitly refers to the latest version of that document in the same Release as the present document. 1 3GPP TS 25.211: “Physical channels and mapping of transport channels onto physical channels (FDD)“. 2 3GPP TS 25.212: “Multiplexing and channel coding (FDD)“. 3 3GPP TS 25.213: “
29、Spreading and modulation (FDD)“. 4 3GPP TS 25.214: “Physical layer procedures (FDD)“. 5 3GPP TS 25.215: “Physical layer Measurements (FDD)“. 6 3GPP TS 25.221: “Physical channels and mapping of transport channels onto physical channels (TDD)“. 7 3GPP TS 25.222: “Multiplexing and channel coding (TDD)“
30、. 8 3GPP TS 25.223: “Spreading and modulation (TDD)“. 9 3GPP TS 25.224: “Physical layer procedures (TDD)“. 10 3GPP TS 25.225: “Physical layer Measurements (TDD)“. 11 3GPP TR 25.833: “Physical layer items not for inclusion in Release 99“. 12 3GPP TR 25.944: “Channel coding and multiplexing examples“.
31、 13 3GPP TS 25.301: “Radio Interface Protocol Architecture“. 14 3GPP TS 25.302: “Services provided by the physical layer“. 15 3GPP TS 25.101: “UE Radio transmission and reception (FDD)“. 16 3GPP TS 25.102: “UE Radio transmission and reception (TDD)“. 17 3GPP TS 25.104: “BTS Radio transmission and re
32、ception (FDD)“. 18 3GPP TS 25.105: “BTS Radio transmission and reception (TDD)“. ETSI ETSI TS 125 201 V15.0.0 (2018-07)63GPP TS 25.201 version 15.0.0 Release 153 Abbreviations For the purposes of the present document, the following abbreviations apply: 16QAM 16 Quadrature Amplitude Modulation 64QAM
33、64 Quadrature Amplitude Modulation ARQ Automatic Repeat Request BER Bit Error Rate CCTrCH Coded Composite Transport Channel DCA Dynamic channel allocation DCH Dedicated Channel DS-CDMA Direct-Sequence Code Division Multiple Access DSCH Downlink Shared Channel DwPCH Downlink Pilot Channel DwPTS Downl
34、ink Pilot Time Slot E-DCH Enhanced Dedicated Channel E-HICH E-DCH Hybrid ARQ Indicator Channel E-RGCH E-DCH Relative Grant Channel FDD Frequency Division Duplex FEC Forward Error Correction FER Frame Error Rate GSM Global System for Mobile Communication HS-DSCH High Speed Downlink Shared channel HS-
35、SCCH HS-DSCH Shared Control Channel L1 Layer 1 (physical layer) L2 Layer 2 (data link layer) L3 Layer 3 (network layer) LAC Link Access Control MAC Medium Access Control MBSFN MBMS over a Single Frequency Network Mcps Mega Chip Per Second MIMO Multiple Input Multiple Output QPSK Quaternary Phase Shi
36、ft Keying RACH Random Access Channel RF Radio Frequency RLC Radio Link Control RRC Radio Resource Control SAP Service Access Point SCH Synchronisation Channel SIR Signal-to-Interference RatioTDD Time Division Duplex TDMA Time Division Multiple Access TFCI Transport-Format Combination Indicator UE Us
37、er Equipment UMTS Universal Mobile Telecommunications System UpPTS Uplink Pilot Time Slot UpPCH Uplink Pilot Channel UTRA UMTS Terrestrial Radio Access UTRAN UMTS Terrestrial Radio Access Network WCDMA Wide-band Code Division Multiple Access 4 General description of Layer 1 4.1 Relation to other lay
38、ers 4.1.1 General Protocol Architecture Radio interface which is prescribed by this specification means the Uu point between User Equipment (UE) and network. The radio interface is composed of Layers 1, 2 and 3. Layer 1 is based on WCDMA/TD-SCDMA technology ETSI ETSI TS 125 201 V15.0.0 (2018-07)73GP
39、P TS 25.201 version 15.0.0 Release 15and the TS 25.200 series describes the Layer-1 specification. Layers 2 and 3 of the radio interface are described in the TS 25.300 series. Figure 1: Radio interface protocol architecture around the physical layer Figure 1 shows the UTRA radio interface protocol a
40、rchitecture around the physical layer (Layer 1). The physical layer interfaces the Medium Access Control (MAC) sub-layer of Layer 2 and the Radio Resource Control (RRC) Layer of Layer 3. The circles between different layer/sub-layers indicate Service Access Points (SAPs). The physical layer offers d
41、ifferent Transport channels to MAC. A transport channel is characterized by how the information is transferred over the radio interface. MAC offers different Logical channels to the Radio Link Control (RLC) sub-layer of Layer 2. A logical channel is characterized by the type of information transferr
42、ed. Physical channels are defined in the physical layer. There are two duplex modes: Frequency Division Duplex (FDD) and Time Division Duplex (TDD). In the FDD mode a physical channel is characterized by the code, frequency and in the uplink the relative phase (I/Q); in addition E-HICH and E-RGCH ar
43、e also defined by a specific orthogonal signature sequence. In the TDD mode the physical channels are also characterized by the timeslot and additionally, the E-HICH is further defined by a specific orthogonal signature sequence. For 1.28Mcps TDD, the E-HICH can be also further defined by a group of
44、 orthogonal signature sequences. The physical layer is controlled by RRC. 4.1.2 Service provided to higher layers The physical layer offers data transport services to higher layers. The access to these services is through the use of transport channels via the MAC sub-layer. The physical layer is exp
45、ected to perform the following functions in order to provide the data transport service. See also TS 25.302: - Macrodiversity distribution/combining and soft handover execution. - Error detection on transport channels and indication to higher layers. - FEC encoding/decoding of transport channels. -
46、Multiplexing of transport channels and demultiplexing of coded composite transport channels (CCTrCHs). - Rate matching of coded transport channels to physical channels. - Mapping of coded composite transport channels on physical channels. - Power weighting and combining of physical channels. - Modul
47、ation and spreading/demodulation and despreading of physical channels. - Frequency and time (chip, bit, slot, frame) synchronisation. - Radio characteristics measurements including FER, SIR, Interference Power, etc., and indication to higher layers. - Inner - loop power control. - RF processing. (No
48、te: RF processing is defined in TS 25.100 series). - synchronization shift control Radio Resource Control (RRC)Medium Access Control(MAC)Transport channelsPhysical layerControl/MeasurementsLayer 3Logical channelsLayer 2Layer 1ETSI ETSI TS 125 201 V15.0.0 (2018-07)83GPP TS 25.201 version 15.0.0 Relea
49、se 15- Beamforming - MIMO transmission - Hybrid ARQ soft-combining for HS-DSCH and E-DCH When network elements (UEs and network) provide compatible service bearers (for example support a speech bearer) they should be assured of successful interworking. Moreover, different implementation options of the same (optional) feature would lead to incompatibility between UE and network. Therefore, this shall be avoided. 4.2 General description of Layer 1 4.2.1 Multiple Access The access scheme is Direct-Sequence Code Division Multiple Acc
