ETSI TS 101 851-4-2-2008 Satellite Earth Stations and Systems (SES) Satellite Component of UMTS IMT-2000 Part 4 Physical layer procedures Sub-part 2 A-family (S-UMTS-A 25 214)《卫星地面.pdf

1、 ETSI TS 101 851-4-2 V2.1.1 (2008-01)Technical Specification Satellite Earth Stations and Systems (SES);Satellite Component of UMTS/IMT-2000;Part 4: Physical layer procedures;Sub-part 2: A-family (S-UMTS-A 25.214)ETSI ETSI TS 101 851-4-2 V2.1.1 (2008-01) 2 Reference RTS/SES-00298-4-2 Keywords MES, M

2、SS, satellite, 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 Individual copies of the pr

3、esent 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 cas

4、e 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 an

5、d other ETSI documents is available at http:/portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following services: http:/portal.etsi.org/chaircor/ETSI_support.asp Copyright Notification No part may be reproduced except as authoriz

6、ed by written permission. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2008. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTM, TIPHONTM, the TIPHON logo and the ETSI logo are Trade Marks of ETSI registered for the be

7、nefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. ETSI ETSI TS 101 851-4-2 V2.1.1 (2008-01) 3 Contents Intellectual Property Rights4 Foreword.4 Introduction 4 1 Scope 6 2 References 6 2.1 Normative references .6 2.

8、2 Informative references7 3 Abbreviations .7 4 Synchronization procedures .7 4.1 Initial satellite search7 4.2 Common physical channel synchronization .7 4.3 DPCCH/DPDCH synchronization7 4.3.1 Synchronization primitives .7 4.3.1.1 General7 4.3.1.2 Downlink synchronization primitives .8 4.3.1.3 Uplin

9、k synchronization primitives 8 4.3.2 Radio link establishment.8 4.3.2.1 No existing uplink dedicated channel: initial synchronization8 4.3.2.2 DPCCH/DPDCH diversity path synchronization9 5 Power control .9 5.1 Uplink power control9 5.1.1 PRACH.9 5.1.1.1 General9 5.1.1.2 Setting of PRACH control and

10、data part power difference .10 5.1.2 DPCCH/DPDCH 10 5.1.2.1 General10 5.1.2.1.1 Outer power control loop.10 5.1.2.1.2 Inner power control loop .10 5.2 Downlink power control.11 5.2.1 Primary CCPCH .11 5.2.2 Secondary CCPCH .11 5.2.3 DPCCH/DPDCH 11 5.2.4 Power Control with DSCH .11 6 Random Access (R

11、ACH) Procedure 12 Annex A (informative): Cell (satellite) search procedure .13 A.1 Initial acquisition13 A.2 Satellite/beam diversity path acquisition13 Annex B (informative): Bibliography.14 History 15 ETSI ETSI TS 101 851-4-2 V2.1.1 (2008-01) 4 Intellectual Property Rights IPRs essential or potent

12、ially 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,

13、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 gua

14、rantee 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 Technical Committee Satellite E

15、arth Stations and Systems (SES). The present document is specifying the Satellite Radio Interface referenced as SRI Family A at ITU-R, in the frame of ITU-R Recommendation M.1457 8. The present document is part 4, sub-part 2 of a multi-part deliverable covering Satellite Earth Stations and Systems (

16、SES); Satellite Component of UMTS/IMT-2000; A-family, as identified below: Part 1: “Physical channels and mapping of transport channels into physical channels“; Part 2: “Multiplexing and channel coding“; Part 3: “Spreading and modulation“; Part 4: “Physical layer procedures“; Sub-part 1: “G-family (

17、S-UMTS-G 25.214)“; Sub-part 2: “A-family (S-UMTS-A 25.214)“; Part 5: “UE Radio Transmission and Reception“; Part 6: “Ground stations and space segment radio transmission and reception“. Introduction S-UMTS stands for the Satellite component of the Universal Mobile Telecommunication System. S-UMTS sy

18、stems will complement the terrestrial UMTS (T-UMTS) and inter-work with other IMT-2000 family members through the UMTS core network. S-UMTS will be used to deliver 3rdgeneration mobile satellite services (MSS) utilizing either low (LEO) or medium (MEO) earth orbiting, or geostationary (GEO) satellit

19、e(s). S-UMTS systems are based on terrestrial 3GPP specifications and will support access to GSM/UMTS core networks. NOTE 1: The term T-UMTS will be used in the present document to further differentiate the Terrestrial UMTS component. Due to the differences between terrestrial and satellite channel

20、characteristics, some modifications to the terrestrial UMTS (T-UMTS) standards are necessary. Some specifications are directly applicable, whereas others are applicable with modifications. Similarly, some T-UMTS specifications do not apply, whilst some S-UMTS specifications have no corresponding T-U

21、MTS specification. ETSI ETSI TS 101 851-4-2 V2.1.1 (2008-01) 5 Since S-UMTS is derived from T-UMTS, the organization of the S-UMTS specifications closely follows the original 3rdGeneration Partnership Project (3GPP) structure. The S-UMTS numbers have been designed to correspond to the 3GPP terrestri

22、al UMTS numbering system. All S-UMTS specifications are allocated a unique S-UMTS number as follows: S-UMTS-n xx.yyy Where: The numbers xx and yyy correspond to the 3GPP-numbering scheme. n (n=A, B, C, ) denotes the family of S-UMTS specifications. An S-UMTS system is defined by the combination of a

23、 family of S-UMTS specifications and 3GPP specifications, as follows: If an S-UMTS specification exists it takes precedence over the corresponding 3GPP specification (if any). This precedence rule applies to any references in the corresponding 3GPP specifications. NOTE 2: Any references to 3GPP spec

24、ifications within the S-UMTS specifications are not subject to this precedence rule. For example, an S-UMTS specification may contain specific references to the corresponding 3GPP specification. If an S-UMTS specification does not exist, the corresponding 3GPP specification may or may not apply. The

25、 exact applicability of the complete list of 3GPP specifications shall be defined at a later stage. ETSI ETSI TS 101 851-4-2 V2.1.1 (2008-01) 6 1 Scope The present document specifies the characteristics of the physical layer procedures used for family A of the satellite component of UMTS (S-UMTS-A).

26、 It is based on the FDD mode of UTRA defined by TS 125 211 2, TS 125 212 3, TS 125 213 4, TS 125 214 5 and adapted for operation over satellite transponders. 2 References References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For a

27、 specific reference, subsequent revisions do not apply. Non-specific reference may be made only to a complete document or a part thereof and only in the following cases: - if it is accepted that it will be possible to use all future changes of the referenced document for the purposes of the referrin

28、g document; - for informative references. Referenced documents which are not found to be publicly available in the expected location might be found at http:/docbox.etsi.org/Reference. For online referenced documents, information sufficient to identify and locate the source shall be provided. Prefera

29、bly, the primary source of the referenced document should be cited, in order to ensure traceability. Furthermore, the reference should, as far as possible, remain valid for the expected life of the document. The reference shall include the method of access to the referenced document and the full net

30、work address, with the same punctuation and use of upper case and lower case letters. NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee their long term validity. 2.1 Normative references The following referenced documents are indispensable

31、 for the application of the present document. For dated references, only the edition cited applies. For non-specific references, the latest edition of the referenced document (including any amendments) applies. 1 ETSI TS 101 851-1-2: “Satellite Earth Stations and Systems (SES); Satellite Component o

32、f UMTS/IMT-2000; Part 1: Physical channels and mapping of transport channels into physical channels; Sub-part 2: A-family (S-UMTS-A 25.211)“. 2 ETSI TS 125 211: “Universal Mobile Telecommunications System (UMTS); Physical channels and mapping of transport channels onto physical channels (FDD) (3G TS

33、 25.211 version 3.3.0 Release 1999)“. 3 ETSI TS 125 212: “Universal Mobile Telecommunications System (UMTS); Multiplexing and channel coding (FDD) (3G TS 25.212 version 3.3.0 Release 1999)“. 4 ETSI TS 125 213: “Universal Mobile Telecommunications System (UMTS); Spreading and modulation (FDD) (3G TS

34、25.213 version 3.3.0 Release 1999)“. 5 ETSI TS 125 214: “Universal Mobile Telecommunications System (UMTS); Physical layer procedures (FDD) (3G TS 25.214 version 3.3.0 Release 1999)“. 6 ETSI TS 125 331: “Universal Mobile Telecommunications System (UMTS); RRC Protocol Specification (3G TS 25.331 vers

35、ion 3.3.0 Release 1999)“. ETSI ETSI TS 101 851-4-2 V2.1.1 (2008-01) 7 7 ETSI TS 125 101: “Universal Mobile Telecommunications System (UMTS); UE Radio transmission and Reception (FDD) (3G TS 25.101 version 3.3.0 Release 1999)“. 2.2 Informative references 8 ITU-R Recommendation M.1457 (2006): “Detaile

36、d specifications of the radio interfaces of International Mobile Telecommunications-2000 (IMT-2000)“. 3 Abbreviations For the purposes of the present document, the following abbreviations apply: BCH Broadcast Channel CCPCH Common Control Physical Channel DCH Dedicated Channel DPCCH Dedicated Physica

37、l Control Channel DPCH Dedicated Physical Channel DPDCH Dedicated Physical Data Channel FACH Forward Access Channel FSW Frame Synchronization Word PRACH Physical Random Access Channel RACH Random Access Channel SCH Synchronization ChannelSIR Signal-to-Interference Ratio TPC Transmit Power Control UE

38、 User Equipment 4 Synchronization procedures 4.1 Initial satellite search During cell search, the UE searches for a satellite and determines the downlink scrambling code and common channel frame synchronization of that satellite beam. A typical initial satellite beam search is described in annex A.

39、4.2 Common physical channel synchronization The radio frame timing of all common physical channels can be determined after cell search. The P-CCPCH radio timing is found during cell search and the radio frame timings of all common physical channels are related to that timing as described in 1. 4.3 D

40、PCCH/DPDCH synchronization 4.3.1 Synchronization primitives 4.3.1.1 General For the dedicated channels, synchronization primitives are used to indicate the synchronization status of radio links, both in uplink and downlink. The definition of the primitives is given in the following clauses. ETSI ETS

41、I TS 101 851-4-2 V2.1.1 (2008-01) 8 4.3.1.2 Downlink synchronization primitives Layer 1 in the UE shall every radio frame check synchronization status of the downlink-dedicated channels. Synchronization status is indicated to higher layers using the CPHY-Sync-IND and CPHY-Out-of-Sync-IND primitives.

42、 Out-of-sync shall be reported using the CPHY-Out-of-Sync-IND primitive if either of the following criteria is fulfilled: - the UE estimates the DPCCH quality over the last 200 ms period to be worse than a threshold Qout. This criterion shall never be fulfilled during the first 200 ms of the dedicat

43、ed channels existence. Qoutis defined implicitly by the relevant tests in 7; - the last 20 transport blocks, as observed on all TrCHs using CRC, are received with incorrect CRC. In addition, over the last 200 ms, no transport block has been received with correct CRC. In-sync shall be reported using

44、the CPHY-Sync-IND primitive if both of the following criteria are fulfilled: - the UE estimates the DPCCH quality over the last 200 ms period to be better than a threshold Qin. This criterion shall always be fulfilled during the first 200 ms of the dedicated channels existence. Qinis defined implici

45、tly by the relevant tests in 7; - at least one transport block, as observed on all TrCHs using CRC, is received with correct CRC. If there is no TrCH using CRC, this criterion is always fulfilled. How the primitives are used by higher layers is described in 6. 4.3.1.3 Uplink synchronization primitiv

46、es Layer 1 in the Node B shall every radio frame check synchronization status of all radio link sets. Synchronization status is indicated to the RL Failure/Restored triggering function using either the CPHY-Sync-IND or CPHY-Out-of-Sync-IND primitive. Hence, only one synchronization status indication

47、 shall be given per radio link set. The exact criteria for indicating in-sync/out-of-sync is not subject to specification, but could e.g. be based on received DPCCH quality or CRC checks. One example would be to have the same criteria as for the downlink synchronization status primitives. 4.3.2 Radi

48、o link establishment The synchronization of the dedicated physical channels can be divided into two cases: - when a downlink dedicated physical channel and uplink dedicated physical channel shall be set up at the same time; - or when a downlink dedicated physical channel shall be set up and there al

49、ready exist an uplink dedicated physical channel. The two cases are described in clauses 4.3.2.1 and 4.3.2.2 respectively. 4.3.2.1 No existing uplink dedicated channel: initial synchronization The assumption for this case is that a DPCCH/DPDCH pair shall be set up in both uplink and downlink, and that there exist no uplink DPCCH/DPDCH already. This corresponds to the case when a dedicated physical channel is initially set up on a frequency. The outline of synchronization establishment procedures of the dedicated physical channel