1、 ETSI TS 125 111 V14.0.0 (2017-04) Universal Mobile Telecommunications System (UMTS); Location Measurement Unit (LMU) performance specification; User Equipment (UE) positioning in UTRAN (3GPP TS 25.111 version 14.0.0 Release 14) TECHNICAL SPECIFICATION ETSI ETSI TS 125 111 V14.0.0 (2017-04)13GPP TS
2、25.111 version 14.0.0 Release 14Reference RTS/TSGR-0425111ve00 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 (0
3、6) N 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
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9、 the GSM Association. ETSI ETSI TS 125 111 V14.0.0 (2017-04)23GPP TS 25.111 version 14.0.0 Release 14Intellectual 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 av
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12、ome, 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 b
13、e 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 “shall“, “shall not“, “should“, “should not“, “may“, “
14、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. ETSI ETSI TS 125 111 V14.0.0
15、(2017-04)33GPP TS 25.111 version 14.0.0 Release 14Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 4g3Introduction 5g31 Scope 6g32 References 6g33 Definitions and abbreviations . 6g33.1 Definitions 6g33.2 Abbreviations . 6g34 General . 7g34.1 Main concepts
16、 7g34.2 LMU Classes 7g34.3 U-TDOA architecture . 7g35 LMU radio characteristics 8g35.1 Frequency bands . 8g35.2 Channel arrangement 8g35.3 Reference sensitivity level 9g35.4 Dynamic range . 9g35.5 Adjacent Channel Selectivity (ACS) 9g35.6 Blocking characteristics . 9g35.7 Intermodulation characteris
17、tics 14g35.8 Spurious emissions . 15g36 LMU measurement requirements . 16g36.1 General . 16g36.2 RRC States supported . 16g36.3 Maximum response times . 16g36.4 Nominal time accuracy . 16g36.5 Multipath scenarios 17g36.6 Moving scenario . 17g36.7 Cross correlation 17g3Annex A (informative): Change h
18、istory . 18g3History 19g3ETSI ETSI TS 125 111 V14.0.0 (2017-04)43GPP TS 25.111 version 14.0.0 Release 14Foreword 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
19、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 p
20、resented 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
21、 in the document. ETSI ETSI TS 125 111 V14.0.0 (2017-04)53GPP TS 25.111 version 14.0.0 Release 14Introduction In order to ensure correctness and consistency of the specifications (i.e., technical specifications and technical reports) under responsibility of the Technical Specification Groups (TSG) o
22、f the 3rdGeneration Partnership Project (3GPP), clear, manageable and efficient mechanisms are necessary to handle version control, change control, document updating, distribution and management. Also, the fact that the specifications are/will be implemented by industry almost in parallel with the w
23、riting of them requires strict and fast procedures for handling of changes to the specifications. It is very important that the changes that are brought into the standard, from the past, at present and in the future, are well documented and controlled, so that technical consistency and backwards tra
24、cing are ensured. The 3GPP TSGs, and their sub-groups together with the Support Team are responsible for the technical content and consistency of the specifications whilst the Support Team alone is responsible for the proper management of the entire documentation, including specifications, meeting d
25、ocuments, administrative information and information exchange with other bodies. ETSI ETSI TS 125 111 V14.0.0 (2017-04)63GPP TS 25.111 version 14.0.0 Release 141 Scope The present document establishes the Location Measurement Unit (LMU) minimum RF characteristics of the FDD mode of UTRA. 2 Reference
26、s 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
27、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 25.104: “Base Sta
28、tion (BS) radio transmission and reception (FDD)”. 2 3GPP TS 45.004: “Modulation”. 3 3GPP TS 25.141: “Base Station (BS) conformance testing (FDD)”. 4 3GPP TR 25.942: “Radio Frequency (RF) system scenarios”. 5 3GPP TR 21.905: “Vocabulary for 3GPP Specifications”. 3 Definitions and abbreviations 3.1 D
29、efinitions For the purposes of the present document, the terms and definitions given in TR 21.905 5 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905 5. Mean power: When applied to a W-CDMA modulated signal thi
30、s is the power (transmitted or received) in a bandwidth of at least (1+ ) times the chip rate of the radio access mode. The period of measurement shall be at least one timeslot unless otherwise stated. NOTE: The roll-off factor is defined in clause 6.8.1 of 1. 3.2 Abbreviations For the purposes of t
31、he present document, the abbreviations given in TR 21.905 5 and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905 5. ACS Adjacent Channel Selectivity BS Base Station BER Bit Error Ratio BLER Block
32、Error Ratio CW Continuous Wave (unmodulated signal) DL Down Link (forward link) FDD Frequency Division Duplexing GSM Global System for Mobile Communications LMU Location Measurement Unit ETSI ETSI TS 125 111 V14.0.0 (2017-04)73GPP TS 25.111 version 14.0.0 Release 14UARFCN UTRA Absolute Radio Frequen
33、cy Channel Number UE User Equipment UL Up Link (reverse link) U-TDOA Uplink Time Difference Of Arrival WCDMA Wideband Code Division Multiple Access 4 General 4.1 Main concepts The LMU is either located as a separate unit in an existing network or typically located at Node B or BTS sites. Therefore t
34、he LMU radio requirements assume that the isolation between the LMU and any other network to be protected is to be at least 30dB. The communication link between LMU and Stand-Alone SMLC is not a radio interface over the air. Requirements in this document therefore do not cover the situation when the
35、 LMU is transmitting over the air on this interface between LMU and Stand-Alone SMLC. 4.2 LMU Classes The requirements in this specification apply to Wide Area LMUs and Medium Range LMUs. Wide Area LMUs are characterised by requirements derived from Macro Cell scenarios with an LMU to UE minimum cou
36、pling loss equal to 70 dB. Medium Range LMUs are characterised by requirements derived from Micro Cell scenarios with an LMU to UE minimum coupling loss equal to 53 dB. For Pico Cell scenarios, the location of the BS provides sufficient accuracy; therefore, a Local Area LMUs class is not specified.
37、4.3 U-TDOA architecture A sample architecture is shown in Figure 3.1 depicting the LMUs relationship with other network elements. The LMU is typically located at the Node B. The LMUs communicate with the SMLC that distributes UTDOA reference data from the reference LMU to other cooperating LMUs when
38、 performing UE positioning. ETSI ETSI TS 125 111 V14.0.0 (2017-04)83GPP TS 25.111 version 14.0.0 Release 14Node BNode BStand-AloneSMLCRNCRNCMSCSGSNIubIubIupcIupcLMULMULMULMULMUTypicallylocatedat NodeBFigure 3.1: Example of UTDOA deployment 5 LMU radio characteristics An LMU performs BS receiver func
39、tions to obtain reference data for use at a cooperating LMU. The following clause describes the required LMU radio characteristics when performing these functions. 5.1 Frequency bands a) The LMU is designed to operate in the following bands: Table 4.1: Frequency bands Operating Band UL Frequencies U
40、E transmit, LMU receive I 1920 1980 MHz II 1850 -1910 MHz III 1710-1785 MHIV 1710-1755 MHz V 824 849MHz VI 830-840 MHz VII 2500 2570 MHz VIII 880 915 MHz IX 1749.9 1784.9 MHz X 1710-1770 MHb) Deployment in other frequency bands is not precluded 5.2 Channel arrangement The channel arrangement shall b
41、e as specified in Section 5.4 of 1. ETSI ETSI TS 125 111 V14.0.0 (2017-04)93GPP TS 25.111 version 14.0.0 Release 145.3 Reference sensitivity level Using the reference measurement channel specification in TS 25.104 Annex A 1, the reference sensitivity level and performance of the LMU shall be as spec
42、ified in Table 4.2. Table 4.2: LMU reference sensitivity levels LMU Class Reference measurement channel data rate LMU sensitivity level (dBm) BER Wide Area LMU 12.2 kbps -121 BER shall not exceed 0.001 Medium Range LMU 12.2 kbps -111 BER shall not exceed 0.001 5.4 Dynamic range Receiver dynamic rang
43、e is the receiver ability to handle a rise of interference in the reception frequency channel. The receiver shall fulfil a specified BER requirement for a specified sensitivity degradation of the wanted signal in the presence of an interfering AWGN signal in the same reception frequency channel. The
44、 BER shall not exceed 0.001 for the parameters specified in Table 4.3. Table 4.3: Dynamic range Parameter Level Wide Area LMU Level Medium Range LMU Unit Reference measurement channel data rate 12.2 12.2 kbps Wanted signal mean power -91 -81 dBmInterfering AWGN signal -73 -63 dBm/3.84 MHz 5.5 Adjace
45、nt Channel Selectivity (ACS) Adjacent channel selectivity (ACS) is a measure of the LMU receiver ability to receive a wanted signal at its assigned channel frequency in the presence of an adjacent channel signal at a given frequency offset from the centre frequency of the assigned channel. ACS is th
46、e ratio of the LMU receiver filter attenuation on the assigned channel frequency to the receiver filter attenuation on the adjacent channel(s). The interference signal is offset from the wanted signal by the frequency offset Fuw. The interference signal shall be a W-CDMA signal as specified in Annex
47、 C of TS 25.104 1. The BER shall not exceed 0.001 for the parameters specified in Table 4.4. Table 4.4: LMU Adjacent channel selectivity Parameter Level Wide Area LMU Level Medium Range LMU Unit Data rate 12.2 12.2 kbps Wanted signal mean power -115 -105 dBmInterfering signal mean power -52 -42 dBm
48、Fuw offset (Modulated) 5 5 MHz 5.6 Blocking characteristics The blocking characteristics are a measure of the LMU receiver ability to receive a wanted signal at its assigned channel frequency in the presence of an unwanted interferer on frequencies other than those of the adjacent channels. The ETSI
49、 ETSI TS 125 111 V14.0.0 (2017-04)103GPP TS 25.111 version 14.0.0 Release 14performance as specified in Table 4.5-4.10 shall be met with a wanted and an interfering signal coupled to the LMU antenna input using the following parameters for the blocking and narrowband blocking requirements: ETSI ETSI TS 125 111 V14.0.0 (2017-04)113GPP TS 25.111 version 14.0.0 Release 14Table 4.5: Blocking performance requirement for Wide Area LMU Operating Band Center Frequency of Interfering Signal Interfering Signal mean power Wanted Signal mean
