1、 ETSI TS 1Digital cellular telecommRadio sub(3GPP TS 45.0TECHNICAL SPECIFICATION145 010 V13.1.0 (2016mmunications system (Phase ubsystem synchronization .010 version 13.1.0 Release 13GLOBAL SYSTEMOBILE COMMUN16-04) e 2+) (GSM); 13) TEM FOR ICATIONSRETSI ETSI TS 145 010 V13.1.0 (2016-04)13GPP TS 45.0
2、10 version 13.1.0 Release 13Reference RTS/TSGG-0145010vd10 Keywords GSM 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
3、7803/88 Important notice The present document can be downloaded from: http:/www.etsi.org/standards-search The present document may be made available in electronic versions and/or in print. The content of any electronic and/or print versions of the present document shall not be modified without the p
4、rior written authorization of ETSI. In case of any existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the print of the Portable Document Format (PDF) version kept on a specific network drive within ETSI Secretariat. Users of the presen
5、t 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, please send your comment to one of th
6、e following services: https:/portal.etsi.org/People/CommiteeSupportStaff.aspx Copyright Notification No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm except as authorized by written permission of ETSI. The content of th
7、e PDF version shall not be modified without the written authorization of ETSI. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2016. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are Trade Marks of E
8、TSI registered for the benefit of its Members. 3GPPTM and LTE are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI TS 145 010 V13.1.0 (2016-04)23GPP TS 45
9、.010 version 13.1.0 Release 13Intellectual 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 0
10、00 314: “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 (https:/ipr.etsi.org/). Pursuant to the ETSI IPR Policy, no invest
11、igation, 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 Specifi
12、cation (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 deliverable
13、s. The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under http:/webapp.etsi.org/key/queryform.asp. Modal verbs terminology In the present document “shall“, “shall not“, “should“, “should not“, “may“, “need not“, “will“, “will not“, “can“ and “cannot“ are to be interpreted
14、 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 deliverables except when used in direct citation. ETSI ETSI TS 145 010 V13.1.0 (2016-04)33GPP TS 45.010 version 13.1.0 Release 13Contents Intellectual
15、 Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 5g31 Scope 6g31.1 References 6g31.2 Definitions and abbreviations . 6g32 General description of synchronization system 8g33 Timebase counters 9g33.1 Timing state of the signals 9g33.2 Relationship between counters . 9g34 Timing
16、of transmitted signals . 9g35 BTS Requirements for Synchronization . 10g35.0 General . 10g35.1 Frequency source 11g35.2 Timebase counters 11g35.3 Internal BTS carrier timing 11g35.4 Initial Timing advance estimation 11g35.5 Maximum timing advance value 11g35.6 Delay tracking 12g35.6.1 For circuit sw
17、itched channels 12g35.6.2 For packet switched channels . 12g35.6.3 Delay assessment error . 12g35.6.4 Pico-BTS and Local Area multicarrier BTS delay tracking . 12g35.7 Timeslot length . 12g35.7.0 Implementation options 12g35.7.1 Regular implementation with timeslot lengths of non-integral symbol per
18、iods . 13g35.7.2 Implementation option for reduced symbol period bursts when integral symbol period option is used for normal symbol period bursts . 14g35.8 Range of Timing advance . 15g36 MS Requirements for Synchronization 15g36.0 General . 15g36.1 MS carrier frequency 16g36.2 Internal timebase 16
19、g36.3 Assessment of BTS timing . 16g36.4 Timing of transmission . 16g36.5 Application of Timing Advance . 17g36.5.1 For circuit switched channels 17g36.5.2 For packet switched channels . 17g36.6 Access to a new BTS 18g36.7 Temporary loss of signal 18g36.8 Timing of channel change 19g36.9 Application
20、 of new Timing Advance value 19g36.10 Definition of “ready to transmit within x ms“ 19g36.11 Definition of additional reaction times for GPRS mobile stations . 20g36.11.1 Uplink and downlink assignment reaction times 20g36.11.2 Change in channel coding scheme commanded by network . 20g36.11.3 Conten
21、tion resolution reaction time 21g36.11.4 Reaction time in response to other commanding messages 21g36.11.5 PAN related reaction times . 21g36.11.6 DTR related reaction times . 22g3ETSI ETSI TS 145 010 V13.1.0 (2016-04)43GPP TS 45.010 version 13.1.0 Release 136.12 Observed Frequency Offset (OFO) repo
22、rted by the CTS-MS 22g36.13 Timing of inter-RAT channel change from GSM to UTRAN 22g36.13a Timing of inter-RAT channel change from GSM to E-UTRAN 23g36.14 Timing of combined intracell channel change and packet assignment . 23g37 CTS-FP Requirements for Synchronization . 24g37.1 Frequency source defa
23、ult requirements 24g37.2 Frequency source for a CTS-FP assisted by a CTS-MS . 24g37.3 Internal CTS-FP carrier timing . 24g37.4 Timeslot length . 24g37.5 Assessment of CTS-MS delay 24g3Annex A (normative): Additional requirements for pseudo-synchronization, synchronized handovers and pseudo-synchroni
24、zed handovers . 25g3A.1 General descriptions and definitions 25g3A.1.1 Conventions 25g3A.1.2 Definitions 25g3A.1.3 Details of operations . 25g3A.2 BTS requirements . 26g3A.2.1 The pseudo-synchronization scheme 26g3A.2.1.1 BTS a time difference estimate . 26g3A.2.1.2 The reception epoch criterion . 2
25、6g3A.2.1.3 Pseudo-synchronized handover 26g3A.2.2 The synchronization scheme 26g3A.3 MS requirements 27g3A.3.1 Provision of time difference information . 27g3A.3.2 After each successful circuit-switched handover . 27g3A.3.3 Synchronized or a pseudo synchronized handover . 27g3Annex B (informative):
26、CTSBCH timeslot shifting properties for CTS-MS synchronization 28g3B.1 Determination of TN by the CTS-MS when CTSBCH shifting is not active 28g3B.2 Determination of TN by the CTS-MS when CTSBCH shifting is active 28g3Annex C (informative): BTS frequency source stability and E-OTD LMU reporting perio
27、ds for LCS . 29g3C.1 BTS frequency source stability and E-OTD LMU reporting periods . 29g3C.2 Frequency source stability 29g3C.3 Relationship to E-OTD reporting periods 29g3Annex D (informative): Change history . 31g3History 34g3ETSI ETSI TS 145 010 V13.1.0 (2016-04)53GPP TS 45.010 version 13.1.0 Re
28、lease 13Foreword This Technical Specification 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
29、, 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.
30、 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 ETSI TS 145 010 V13.1.0 (2016-04)63GPP TS 45.010 version 13.1.0 Release 1
31、31 Scope The present document defines the requirements for synchronization on the radio sub-system of the digital cellular telecommunications systems GSM. However, it does not define the synchronization algorithms to be used in the Base Transceiver Station (BTS), CTS Fixed Part (CTS-FP) and Mobile S
32、tation (MS). These are up to the manufacturer to specify. 1.1 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,
33、 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 i
34、n the same Release as the present document. 1 3GPP TR 21.905: Vocabulary for 3GPP Specifications. 2 3GPP TS 25.123: Requirements for support of radio resource management (TDD). 3 3GPP TS 25.133: Requirements for support of radio resource management (FDD). 4 3GPP TR 43.030: Radio network planning asp
35、ects. 5 3GPP TS 43.052: Lower layers of the Cordless Telephony System (CTS) Radio Interface; Stage 2. 6 3GPP TS 43.059: Functional stage 2 description of Location Services (LCS) in GERAN. 7 3GPP TS 43.064: Overall description of the GPRS radio interface; Stage 2. 8 3GPP TS 44.018: Mobile radio inter
36、face layer 3 specification, Radio Resource Control Protocol. 9 3GPP TS 44.060: General Packet Radio Service (GPRS); Mobile Station (MS) - Base Station System (BSS) interface; Radio Link Control/ Medium Access Control (RLC/MAC) protocol. 10 3GPP TS 45.002: Multiplexing and multiple access on the radi
37、o path. 11 3GPP TS 45.005: Radio transmission and reception. 12 3GPP TS 45.008: Radio subsystem link control. 13 3GPP TS 45.050: Background for RF Requirements. 14 3GPP TS 45.056: CTS-FP Radio Sub-system. 15 3GPP TS 45.004: Modulation. 16 3GPP TS 36.133: Evolved Universal Terrestrial Radio Access (E
38、-UTRA); Requirements for support of radio resource management. 17 3GPP TS 36.211: Evolved Universal Terrestrial Radio Access (E-UTRA); Physical Channels and Modulation. 1.2 Definitions and abbreviations In addition to those below, abbreviations used in the present document are listed in 3GPP TR 21.9
39、05. ETSI ETSI TS 145 010 V13.1.0 (2016-04)73GPP TS 45.010 version 13.1.0 Release 13BTS: Base Transceiver Station. BTTI: Basic TTI. Coverage Class: see definition in 3GPP TS 43.064. CTS-FP: CTS Fixed Part. CTS-MS: MS operating in CTS mode. Current Serving BTS: BTS on one of whose channels (TCH, DCCH,
40、 CCCH or PDCH) the MS is currently operating. Current Serving CTS-FP: CTS-FP on one of whose channels (TCH or CTS control channels) the CTS-MS is currently operating. FANR (Fast Ack/Nack Reporting): Fast Ack/Nack Reporting enables the use of a PAN field within an RLC/MAC block for EGPRS data transfe
41、r or for EGPRS2 data transfer. FANR enables the mobile station to transmit in the uplink direction a PAN field corresponding to a downlink TBF. Similarly FANR enables the network to transmit in the downlink direction a PAN field corresponding to an uplink TBF. MS timing offset: delay of the received
42、 signal relative to the expected signal from an MS at zero distance under static channel conditions with zero timing advance. This is accurate to 1 symbol, and reported once per SACCH or after a RACH as. required (i.e. at the same rate as timing advance). For example, for an MS with a round trip pro
43、pagation delay of P symbols, but with a timing advance of T symbols, the reported timing offset will be P-T quantized to the nearest symbol. For GPRS the MS timing offset is not reported. Normal Symbol Period: duration of a symbol for bursts using a modulating symbol rate of 1625/6 ksymb/s (see 3GPP
44、 TS 45.004); it is equal to 48/13 s. This symbol duration is used for transmission of GMSK, 8PSK, 16QAM and 32QAM modulated bursts on downlink and GMSK, 8PSK and 16QAM modulated bursts on uplink (see 3GPP TS 45.004). Observed Frequency Offset (OFO): difference of frequency of signals received by a C
45、TS-MS from a CTS-FP and a BTS. The Observed Frequency Offset is measured and reported by the CTS-MS on CTS-FP requirement. The Observed Frequency Offset is expressed in ppm with an accuracy of 1/64 ppm (i.e. about 0,016 ppm). PAN: Piggy-backed Ack/Nack. Quarter symbol number: timing of quarter symbo
46、l periods (12/13 s or 10/13 s depending on the actual symbol period used) within a timeslot. A symbol can represent 1 to 5 bits depending upon modulation. Reduced Latency: refers to the use of FANR either in BTTI configuration or in RTTI configuration for EGPRS and EGPRS2. Reduced Symbol Period: dur
47、ation of a symbol for bursts using a modulating symbol rate of 325 ksymb/s (see 3GPP TS 45.004); it is equal to 40/13 s. This symbol duration is used for transmission of QPSK, 16QAM and 32QAM modulated bursts on uplink and downlink (see 3GPP TS 45.004). RTTI: Reduced TTI. Symbol Period: symbol perio
48、d is the duration of a symbol and shall refer to normal symbol period unless explicitly clarified to be the reduced symbol period. TDMA frame number: count of TDMA frames relative to an arbitrary start point. Timebase counters: set of counters which determine the timing state of signals transmitted
49、by a BTS or MS. Time group (TG): used for compact, time groups shall be numbered from 0 to 3 and a particular time group shall be referred to by its time group number (TG) (see 3GPP TS 45.002). Timeslot number: timing of timeslots within a TDMA frame. Timing Advance: signal sent by the BTS to the MS which the MS uses to advance its timings of transmissions to the BTS so as to compensate for propagation delay. ETSI ETSI TS 145 010 V13.1.0 (2016-04)83GPP TS 45.010 version 13.1.0 Release 13Timing Adv
