1、 ETSI TR 125 943 V15.0.0 (2018-07) Universal Mobile Telecommunications System (UMTS); Deployment aspects (3GPP TR 25.943 version 15.0.0 Release 15) TECHNICAL REPORT ETSI ETSI TR 125 943 V15.0.0 (2018-07)13GPP TR 25.943 version 15.0.0 Release 15Reference RTR/TSGR-0425943vf00 Keywords UMTS ETSI 650 Ro
2、ute 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 downloaded from: http:/www.ets
3、i.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 prior written authorization of ETSI. In case of any existing or perceived difference
4、 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 present document should be aware that the document may be subject to revision or change o
5、f status. Information on the current status of this and other ETSI documents is available at https:/portal.etsi.org/TB/ETSIDeliverableStatus.aspx If you find errors in the present document, please send your comment to one of the following services: https:/portal.etsi.org/People/CommiteeSupportStaff.
6、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 the PDF version shall not be modified without the written authorization of
7、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 registered for the benefit of i
8、ts 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 TR 125 943 V15.0.0 (2018-07)23GPP TR 25.943 version 15.0.0 Release 15Intellectual Property Rights Ess
9、ential patents IPRs essential or potentially essential to normative deliverables 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 (IPR
10、s); 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 investigation, including IPR searches, has been
11、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 trademarks and/or tradenames
12、which are asserted and/or registered by their owners. ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does not constitute a
13、n endorsement by ETSI of products, services or organizations associated with those trademarks. Foreword This Technical Report (TR) has been produced by ETSI 3rd Generation Partnership Project (3GPP). The present document may refer to technical specifications or reports using their 3GPP identities, U
14、MTS 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 terminology In the present document “shoul
15、d“, “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 deliverables except when used in direct citation. ETS
16、I ETSI TR 125 943 V15.0.0 (2018-07)33GPP TR 25.943 version 15.0.0 Release 15Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 4g31 Scope 5g32 References 5g33 Definitions, symbols and abbreviations . 5g33.1 Definitions 5g33.2 Symbols 5g33.3 Abbreviations . 5
17、g34 General . 5g35 Channel model descriptions . 6g35.1 Typical Urban channel model (Tux) 7g35.2 Rural Area channel model (Rax) 7g35.3 Hilly Terrain channel model (HTx) 8g3Annex A: The COST 259 Channel Model 9g3A.1 Background 9g3A.2 Model descriptions . 9g3A.3 Reduced complexity models. 10g3Annex B:
18、Example of simplified model using other time resolution . 12g3Annex C: Change history 13g3History 14g3ETSI ETSI TR 125 943 V15.0.0 (2018-07)43GPP TR 25.943 version 15.0.0 Release 15Foreword This Technical Report has been produced by the 3GPP. The contents of the present document are subject to conti
19、nuing work within the TSG and may change following formal TSG approval. Should the TSG modify the contents of this TS, 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
20、 for information; 2 presented to TSG for approval; 3 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 in
21、corporated in the document. ETSI ETSI TR 125 943 V15.0.0 (2018-07)53GPP TR 25.943 version 15.0.0 Release 151 Scope The present document establishes channel models to be used for deployment evaluation. 2 References The following documents contain provisions which, through reference in this text, cons
22、titute 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 cas
23、e 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 L.M. Correia, ed., Wireless flexible personalized communications COST 259: European co-operation in mobile
24、radio research, John Wiley Radio transmission and reception” 3 Definitions, symbols and abbreviations 3.1 Definitions (void) 3.2 Symbols For the purposes of the present document, the following symbols apply: R.M.S. delay spread. Fd Maximum Doppler shift fs Doppler frequency of the direct path, given
25、 by its direction relative to the mobile direction of movement 3.3 Abbreviations For the purposes of the present document, the following abbreviations apply: COST European Co-operation in the field of Scientific and Technical research GSM Global System for Mobile communications HT Hilly TerrainRA Ru
26、ral Area TU Typical Urban UMTS Universal Mobile Telecommunications System 4 General The channel models have been chosen as simplifications, or typical realisations of the COST 259 model 1 that is described in more detail in Annex A. A large number of paths (20) in each model ensure that the correlat
27、ion properties in the frequency domain are realistic. Path powers follow the exponential channel shapes in the COST 259 model. The delay spreads for each model are close to expected medians when applying the COST 259 model in reasonably sized macrocells. In the rural model a direct ETSI ETSI TR 125
28、943 V15.0.0 (2018-07)63GPP TR 25.943 version 15.0.0 Release 15path is present, resulting in Rice-type fading when filtered to wideband channels. The hilly terrain model consists of two clusters, a typical situation in these environments. With the chosen parameters the models will be quite similar to
29、 the GSM channel models 2, after filtering to the GSM bandwidth. In Section 5, the channel models are specified explicitly. The tap delays have been determined by generating 20 independent identically distributed values from a uniform distribution in the interval , where is the rms delay spread. For
30、 the Hilly Terrain channel 10 paths have been generated for each cluster and for the Rural Area model there is a total of 10 taps. Relative powers have then been calculated using the channel shapes in Annex A, Table A.3. The channels have been normalised so that the total power in each channel is eq
31、ual to one. 5 Channel model descriptions Radio wave propagation in the mobile environment can be described by multiple paths which arise due to reflection and scattering in the mobile environment. Approximating these paths as a finite number of N distinct paths, the impulse response for the radio ch
32、annel may be written as: which is the well known tapped-delay line model. Due to scattering of each wave in the vicinity of a moving mobile, each path will be the superposition of a large number of scattered waves with approximately the same delay. This superposition gives rise to time-varying fadin
33、g of the path amplitudes , a fading which is well described by Rayleigh distributed amplitudes varying according to a classical Doppler spectrum: where is the maximum Doppler shift, a function of the mobile speed and the wavelength . In some cases a strong direct wave or specular reflection exists w
34、hich gives rise to a non-fading path, then the Doppler spectrum is: where is the Doppler frequency of the direct path, given by its direction relative to the mobile direction of movement. The channel models presented here will be described by a number of paths, having average powers and relative del
35、ays , along with their Doppler spectrum which is either classical or a direct path. The models are named Tux, Rax and HTx, where x is the mobile speed in km/h. Default mobile speeds for the models are according to Table 5.1. The relative position of the taps is for each model listed with a 0.001 s r
36、esolution. Table 5.1: Default mobile speeds for the channel models. Channel model Mobile speed Tux 3 km/h 50 km/h 120 km/h Rax 120 km/h250 km/h HTx 120 km/h=Niiiah )()( iaia5.02)/(1/(1)(DfffS /vfD=v )()(sffS =sf2iai 4,0ETSI ETSI TR 125 943 V15.0.0 (2018-07)73GPP TR 25.943 version 15.0.0 Release 15Th
37、e models may in certain cases be simplified to a specific application to allow for less complex simulations and testing. The simplification should be done with a specific time resolution T, which should be stated to avoid confusion: e.g. Rax(T=0.1s). An example of such a simplified model is shown in
38、 Annex B. 5.1 Typical Urban channel model (Tux) Table 5.2: Channel for urban area Tap number Relative time (s) average relative power (dB) 7oppler spectrum 1 0 -5.7 Class2 0.217 -7.6 Class3 0.512 -10.1 lass 4 0.514 -10.2 Class5 0.517 -10.2 lass6 0.674 -11.5 Class7 0.882 -13.4 lass 8 1.230 -16.3 Clas
39、s9 1.287 -16.9 lass10 1.311 -17.1 Class11 1.349 -17.4 lass 12 1.533 -19.0 Class13 1.535 -19.0 lass14 1.622 -19.8 Class15 1.818 -21.5 lass 16 1.836 -21.6 Class17 1.884 -22.1 lass18 1.943 -22.6 Class19 2.048 -23.5 lass 20 2.140 -24.3 Class5.2 Rural Area channel model (Rax) Table 5.3: Channel for rural
40、 area Tap number Relative time (s) average relative power (dB) 7oppler spectrum 1 0 -5.2 Direct path, 2 0.042 -6.4 Class 3 0.101 -8.4 Class 4 0.129 -9.3 Class 5 0.149 -10.0 Class 6 0.245 -13.1 Class 7 0.312 -15.3 Class 8 0.410 -18.5 Class 9 0.469 -20.4 Class 10 0.528 -22.4 Class Dsff = 7.0ETSI ETSI
41、TR 125 943 V15.0.0 (2018-07)83GPP TR 25.943 version 15.0.0 Release 155.3 Hilly Terrain channel model (HTx) Table 5.4: Channel for hilly terrain area Tap number Relative time (s) average relative power (dB) 8oppler spectrum 1 0 -3.6 Class2 0.356 -8.9 Class3 0.441 -10.2 lass 4 0.528 -11.5 Class5 0.546
42、 -11.8 lass6 0.609 -12.7 Class7 0.625 -13.0 lass 8 0.842 -16.2 Class9 0.916 -17.3 lass10 0.941 -17.7 Class11 15.000 -17.6 Class 12 16.172 -22.7 Class13 16.492 -24.1 Class14 16.876 -25.8 Class15 16.882 -25.8 Class 16 16.978 -26.2 Class17 17.615 -29.0 Class18 17.827 -29.9 Class19 17.849 -30.0 Class 20
43、 18.016 -30.7 ClassETSI ETSI TR 125 943 V15.0.0 (2018-07)93GPP TR 25.943 version 15.0.0 Release 15Annex A: The COST 259 Channel Model A.1 Background COST 259 1 is a research forum funded by the EU, in which there are participants from manufacturers, operators and universities. This forum is the seco
44、nd successor of COST 207, who did the work on which the channel models used in GSM standardization were based. One of the work items identified in COST 259 is to propose a new set of channel models which overcome the limitations in the GSM channel models, while aiming at the same general acceptance.
45、 The models are aimed at UMTS and HIPERLAN, with particular emphasis on adaptive antennas and directional channels. A.2 Model descriptions The main difference between the COST 259 model and previous models is that it tries to describe the complex range of conditions found in the real world by distri
46、butions of channels rather than a few “typical” cases. The probability densities for the occurrence of different channels are functions of mainly two parameters: 1) Environment 2) Distance Given a certain environment (e.g. Urban Macrocell) and a certain distance (or distance range/cell radius), the
47、parameters describing the distribution functions for this particular case can be extracted. Performing a sufficient number of channel realizations will give a distribution of channels which give a much better representation of reality than what would be possible using only one channel. The environme
48、nts identified so far in COST 259 are given in Table A.1, although these are by no means written in stone. The macrocellular environments have the same names as the GSM models. (It is being discussed if there should be a distinction between indoor and outdoor mobiles for the macrocellular environmen
49、ts.) Table A.1: Preliminary environments identified by COST 259. Macrocell Microcell Picocell Typical Urban (Street Canyons) (Tunnel/Corridor) Bad Urban (Open Places) (Factory) Rural Area (Tunnels) (Office/Residential Home) Hilly Terrain (Street Crossings) (Open Lounge) In COST 259, a number of properties of the propagation channel has been considered in the model work. The full proposal will include all of these properties, but it is quite simple and straightforward to implement the model in a modu
