ETSI TS 125 224 V4.3.0 (2001-12) Technical Specification Universal Mobile Telecommunications System (UMTS); Physical layer procedures (TDD) (3GPP TS 25.224 version 4.3.0 Release 4) 3GPP TS 25.224 version 4.3.0 Release 4 1 ETSI TS 125 224 V4.3.0 (2001-12) Reference RTS/TSGR-0125224Uv4R3 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 à but non lucratif enregistrée à la Sous-Préfecture de Grasse (06) N° 7803/88 Important notice Individual copies of the present document can be downloaded from: http://www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http://portal.etsi.org/tb/status/status.asp If you find errors in the present document, send your comment to: [email protected] Copyright Notification No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. © European Telecommunications Standards Institute 2001. All rights reserved. ETSI 3GPP TS 25.224 version 4.3.0 Release 4 2 ETSI TS 125 224 V4.3.0 (2001-12) Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http://webapp.etsi.org/IPR/home.asp). Pursuant to the ETSI IPR Policy, no investigation, including 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. Foreword This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP). The present document may refer to technical specifications or reports 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 www.etsi.org/key . ETSI 3GPP TS 25.224 version 4.3.0 Release 4 3 ETSI TS 125 224 V4.3.0 (2001-12) Contents Intellectual Property Rights................................................................................................................................2 Foreword.............................................................................................................................................................2 Foreword.............................................................................................................................................................6 1 Scope........................................................................................................................................................7 2 References................................................................................................................................................7 3 Abbreviations...........................................................................................................................................8 4 Physical layer procedures for the 3,84 Mcps option................................................................................9 4.1 General...............................................................................................................................................................9 4.2 Transmitter Power Control.................................................................................................................................9 4.2.1 General Parameters.......................................................................................................................................9 4.2.2 Uplink Control..............................................................................................................................................9 4.2.2.1 General Limits.........................................................................................................................................9 4.2.2.2 PRACH...................................................................................................................................................9 4.2.2.3 DPCH, PUSCH.......................................................................................................................................9 4.2.2.3.1 Gain Factors......................................................................................................................................9 4.2.2.3.2 Out of synchronisation handling......................................................................................................11 4.2.3 Downlink Control.......................................................................................................................................11 4.2.3.1 P-CCPCH..............................................................................................................................................11 4.2.3.2 S-CCPCH, PICH...................................................................................................................................11 4.2.3.3 SCH.......................................................................................................................................................11 4.2.3.4 PNBSCH...............................................................................................................................................11 4.2.3.5 DPCH, PDSCH.....................................................................................................................................11 4.2.3.5.1 Out of synchronisation handling......................................................................................................12 4.3 Timing Advance...............................................................................................................................................12 4.4 Synchronisation procedures..............................................................................................................................13 4.4.1 Cell Search..................................................................................................................................................13 4.4.2 Dedicated channel synchronisation.............................................................................................................13 4.4.2.1 Synchronisation primitives....................................................................................................................13 4.4.2.1.1 General............................................................................................................................................13 4.4.2.1.2 Downlink synchronisation primitives..............................................................................................13 4.4.2.1.3 Uplink synchronisation primitives...................................................................................................14 4.4.2.2 Radio link monitoring...........................................................................................................................14 4.4.2.2.1 Downlink radio link failure.............................................................................................................14 4.4.2.2.2 Uplink radio link failure/restore......................................................................................................14 4.5 Discontinuous transmission (DTX) of Radio Frames.......................................................................................14 4.5.1 Use of Special Bursts for DTX...................................................................................................................15 4.5.2 Use of Special Bursts for Initial Establishment / Reconfiguration.............................................................15 4.6 Downlink Transmit Diversity...........................................................................................................................15 4.6.1 Transmit Diversity for PDSCH and DPCH................................................................................................15 4.6.2 Transmit Diversity for SCH........................................................................................................................16 4.6.2.1 SCH Transmission Scheme...................................................................................................................16 4.6.3 Transmit Diversity for P-CCPCH and PICH..............................................................................................16 4.6.3.1 P-CCPCH Transmission Scheme..........................................................................................................16 4.6.3.2 PICH Transmission Scheme..................................................................................................................17 4.7 Random access procedure................................................................................................................................17 4.7.1 PRACH sub-channels.................................................................................................................................17 4.7.2 Physical random access procedure..............................................................................................................18 4.8 DSCH procedure..............................................................................................................................................19 4.8.1 DSCH procedure with TFCI indication......................................................................................................19 4.8.2 DSCH procedure with midamble indication...............................................................................................19 4.9 Node B Synchronisation Procedure over the Air.............................................................................................20 4.9.1 Frequency Acquisition Phase......................................................................................................................20 4.9.2 Initial Synchronisation................................................................................................................................20 ETSI 3GPP TS 25.224 version 4.3.0 Release 4 4 ETSI TS 125 224 V4.3.0 (2001-12) 4.9.3 Steady-State Phase......................................................................................................................................20 4.9.4 Late entrant cells.........................................................................................................................................20 4.10 Idle periods for IPDL location method.............................................................................................................20 4.10.1 General........................................................................................................................................................20 4.10.2 Parameters of IPDL....................................................................................................................................21 4.10.3 Calculation of idle period position..............................................................................................................21 5 Physical layer procedures for the 1,28 Mcps option..............................................................................22 5.1 Transmitter Power Control...............................................................................................................................22 5.1.1 Uplink Control............................................................................................................................................23 5.1.1.1 General limits........................................................................................................................................23 5.1.1.2 UpPTS...................................................................................................................................................23 5.1.1.3 PRACH.................................................................................................................................................23 5.1.1.4 DPCH and PUSCH...............................................................................................................................23 5.1.1.4.1 Out of synchronization handling.....................................................................................................23 5.1.2 Downlink Control.......................................................................................................................................24 5.1.2.1 P-CCPCH..............................................................................................................................................24 5.1.2.2 The power of the F-PACH....................................................................................................................24 5.1.2.3 S-CCPCH, PICH...................................................................................................................................24 5.1.2.4 DPCH, PDSCH.....................................................................................................................................24 5.1.2.4.1 Out of synchronisation handling......................................................................................................24 5.2 UL Synchronisation..........................................................................................................................................24 5.2.1 General Description....................................................................................................................................24 5.2.1.1 Preparation of uplink synchronization (downlink synchronization).....................................................25 5.2.1.2 Establishment of uplink synchronization..............................................................................................25 5.2.1.3 Maintenance of uplink synchronisation................................................................................................25 5.2.2 UpPCH........................................................................................................................................................25 5.2.3 PRACH.......................................................................................................................................................25 5.2.4 DPCH and PUSCH.....................................................................................................................................26 5.2.4.1 Out of synchronization handling...........................................................................................................26 5.3 Synchronisation procedures..............................................................................................................................26 5.3.1 Cell search..................................................................................................................................................26 5.3.2 DCH synchronization.................................................................................................................................26 5.4 Discontinuous transmission (DTX) of Radio Frames.......................................................................................26 5.5 Downlink Transmit Diversity...........................................................................................................................26 5.5.1 Transmit Diversity for DPCH.....................................................................................................................26 5.5.1.1 TSTD for DPCH...................................................................................................................................27 5.5.1.2 Closed Loop Tx Diversity for DPCH....................................................................................................27 5.5.2 Transmit Diversity for DwPTS...................................................................................................................28 5.5.3 Transmit Diversity for P-CCPCH...............................................................................................................28 5.5.3.1 TSTD Transmission Scheme for P-CCPCH.........................................................................................28 5.5.3.2 SCTD Transmission Scheme for P-CCPCH.........................................................................................28 5.6 Random Access Procedure...............................................................................................................................29 5.6.1 Definitions..................................................................................................................................................29 5.6.2 Preparation of random access.....................................................................................................................30 5.6.3 Random access procedure...........................................................................................................................30 5.6.3.1 The use and generation of the information fields transmitted in the FPACH.......................................31 5.6.3.1.1 Signature Reference Number...........................................................................................................31 5.6.3.1.2 Relative Sub-Frame Number...........................................................................................................31 5.6.3.1.3 Received starting position of the UpPCH (UpPCH )..................................................................32 POS 5.6.3.1.4 Transmit Power Level Command for the RACH message..............................................................32 5.6.4 Random access collision.............................................................................................................................32 Annex A (informative): Power Control................................................................................................33 A.1 Example Implementation of Downlink Power Control in the UE..........................................................33 A.2 Example Implementation of Closed Loop Uplink Power Control in Node B for 1,28 Mcps TDD.......33 A.3 Example Implementation of Downlink Power Control in UE for 1,28 Mcps TDD when TSTD is used.........................................................................................................................................................33 A.4 Example Implementation of open Loop Power Control for access procedure for 1,28 Mcps TDD.....34 ETSI 3GPP TS 25.224 version 4.3.0 Release 4 5 ETSI TS 125 224 V4.3.0 (2001-12) Annex B (informative): Determination of Weight Information.........................................................35 B.1 STD Weights..........................................................................................................................................35 B.2 TxAA Weights.......................................................................................................................................35 Annex C (informative): Cell search procedure for 3,84 Mcps TDD..................................................36 Annex D (informative): Cell search procedure for 1,28 Mcps TDD..................................................37 Annex E (informative): Examples random access procedure for 1,28 Mcps TDD...........................38 Annex F (informative): Change history...............................................................................................40 History..............................................................................................................................................................42 ETSI 3GPP TS 25.224 version 4.3.0 Release 4 6 ETSI TS 125 224 V4.3.0 (2001-12) Foreword This Technical Specification (TS) has been produced by the 3rd Generation 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 will 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 second 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 3GPP TS 25.224 version 4.3.0 Release 4 7 ETSI TS 125 224 V4.3.0 (2001-12) 1 Scope The present document describes the Physical Layer Procedures in the TDD mode of UTRA. 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document. • References are either specific (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-specific reference implicitly refers to the latest version of that document in the same Release as the present document. [1] 3GPP TS 25.201: "Physical layer - general description". [2] 3GPP TS 25.102: "UE physical layer capabilities". [3] 3GPP TS 25.211: "Physical channels and mapping of transport channels onto physical channels (FDD)". [4] 3GPP TS 25.212: "Multiplexing and channel coding (FDD)". [5] 3GPP TS 25.213: "Spreading and modulation (FDD)". [6] 3GPP TS 25.214: "Physical layer procedures (FDD)". [7] 3GPP TS 25.215: "Physical Layer - Measurements (FDD)". [8] 3GPP TS 25.221: "Physical channels and mapping of transport channels onto physical channels (TDD)". [9] 3GPP TS 25.222: "Multiplexing and channel coding (TDD)". [10] 3GPP TS 25.223: "Spreading and modulation (TDD)". [11] 3GPP TS 25.225: "Physical Layer - Measurements (TDD)". [12] 3GPP TS 25.301: "Radio Interface Protocol Architecture". [13] 3GPP TS 25.302: "Services Provided by the Physical Layer". [14] 3GPP TS 25.401: "UTRAN Overall Description". [15] 3GPP TS 25.331: "RRC Protocol Specification" [16] 3GPP TS 25.433: "UTRAN Iub Interface NBAP Signalling" [17] 3GPP TS 25.105: "UTRA (BS) TDD; Radio transmission and Reception" [18] 3GPP TS 25.321: "MAC protocol specification" [19] 3GPP TS 25.303: "Interlayer Procedures in Connected Mode" [20] 3GPP TS 25.402: "Synchronisation in UTRAN Stage 2" ETSI 3GPP TS 25.224 version 4.3.0 Release 4 8 ETSI TS 125 224 V4.3.0 (2001-12) 3 Abbreviations For the purposes of the present document, the following abbreviations apply: ASC Access Service Class BCCH Broadcast Control Channel BCH Broadcast Channel CCTrCH Coded Composite Transport Channel CDMA Code Division Multiple Access CRC Cyclic Redundancy Check DCA Dynamic Channel Allocation DL Downlink DPCH Dedicated Physical Channel DTX Discontinuous Transmission FACH Forward Access Channel FDD Frequency Division Duplex ISCP Interference Signal Code Power MAC Medium Access Control NRT Non-Real Time P-CCPCH Primary Common Control Physical Channel PC Power Control PDSCH Physical Downlink Shared Channel PRACH Physical Random Access Channel PUSCH Physical Uplink Shared Channel RACH Random Access Channel RL Radio Link RRC Radio Resource Control RSCP Received Signal Code Power RT Real Time RU Resource Unit SBGP Special Burst Generation Gap SBP Special Burst Period SBSP Special Burst Scheduling Period S-CCPCH Secondary Common Control Physical Channel SCH Synchronisation Channel SCTD Space Code Transmit Diversity SFN System Frame Number SIR Signal–to-Interference Ratio SSCH Secondary Synchronisation Channel STD Selective Transmit Diversity TA Timing Advance TDD Time Division Duplex TF Transport Format TFC Transport Format Combination TFCI Transport Format Combination Indicator TFCS Transport Format Combination Set TPC Transmit Power Control TSTD Time Switched Transmit Diversity TTI Transmission Time Interval TxAA Transmit Adaptive Antennas UE User Equipment UL Uplink UMTS Universal Mobile Telecommunications System UTRAN UMTS Radio Access Network VBR Variable Bit Rate ETSI 3GPP TS 25.224 version 4.3.0 Release 4 9 ETSI TS 125 224 V4.3.0 (2001-12) 4 Physical layer procedures for the 3,84 Mcps option 4.1 General 4.2 Transmitter Power Control 4.2.1 General Parameters Power control is applied for the TDD mode to limit the interference level within the system thus reducing the intercell interference level and to reduce the power consumption in the UE. All codes within one timeslot allocated to the same CCTrCH use the same transmission power, in case they have the same spreading factor. Table 1: Transmit Power Control characteristics Uplink Downlink Power control rate Variable Variable, with rate depending on 1-7 slots delay (2 slot SCH) the slot allocation. 1-14 slots delay (1 slot SCH) TPC Step size -- 1dB or 2 dB or 3 dB Remarks All figures are without processing and measurement times 4.2.2 Uplink Control 4.2.2.1 General Limits During the operation of the uplink power control procedure the UE transmit power shall not exceed a maximum allowed value which is the lower out of the maximum output power of the terminal power class and a value which may be set by higher layer signalling. Uplink power control shall be performed while the total UE transmit power is below the maximum allowed output power. In some cases the total UE transmit power in a timeslot after uplink power control calculation might exceed the maximum allowed output power. In these cases the calculated transmit power of all uplink physical channels in this timeslot shall be scaled by the same amount in dB before transmission. The total UE transmission power used shall be the maximum allowed output power. The UTRAN may not expect the UE to be capable of reducing its total transmit power below the minimum level specified in [2]. 4.2.2.2 PRACH The transmit power for the PRACH is set by higher layers based on open loop power control as described in [15]. 4.2.2.3 DPCH, PUSCH The transmit power for DPCH and PUSCH is set by higher layers based on open loop power control as described in [15]. 4.2.2.3.1 Gain Factors Two or more transport channels may be multiplexed onto a CCTrCH as described in [9]. These transport channels undergo rate matching which involves repetition or puncturing. This rate matching affects the transmit power required to obtain a particular E /N . Thus, the transmission power of the CCTrCH shall be weighted by a gain factor β. b 0 ETSI