1、 ETSI TS 125 111 V15.0.0 (2018-07) Universal Mobile Telecommunications System (UMTS); Location Measurement Unit (LMU) performance specification; User Equipment (UE) positioning in UTRAN (3GPP TS 25.111 version 15.0.0 Release 15) TECHNICAL SPECIFICATION ETSI ETSI TS 125 111 V15.0.0 (2018-07)13GPP TS
2、25.111 version 15.0.0 Release 15Reference RTS/TSGR-0425111vf00 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
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9、5.0.0 (2018-07)23GPP TS 25.111 version 15.0.0 Release 15Intellectual Property Rights Essential 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
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14、resent 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
15、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 as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expressio
16、n of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI TS 125 111 V15.0.0 (2018-07)33GPP TS 25.111 version 15.0.0 Release 15Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 4g3Introductio
17、n 5g31 Scope 6g32 References 6g33 Definitions and abbreviations . 6g33.1 Definitions 6g33.2 Abbreviations . 6g34 General . 7g34.1 Main concepts 7g34.2 LMU Classes 7g34.3 U-TDOA architecture . 7g35 LMU radio characteristics 8g35.1 Frequency bands . 8g35.2 Channel arrangement 8g35.3 Reference sensitiv
18、ity level 9g35.4 Dynamic range . 9g35.5 Adjacent Channel Selectivity (ACS) 9g35.6 Blocking characteristics . 9g35.7 Intermodulation characteristics 13g35.8 Spurious emissions . 14g36 LMU measurement requirements . 15g36.1 General . 15g36.2 RRC States supported . 15g36.3 Maximum response times . 15g3
19、6.4 Nominal time accuracy . 15g36.5 Multipath scenarios 16g36.6 Moving scenario . 16g36.7 Cross correlation 16g3Annex A (informative): Change history . 17g3History 18 ETSI ETSI TS 125 111 V15.0.0 (2018-07)43GPP TS 25.111 version 15.0.0 Release 15Foreword This Technical Specification has been produce
20、d 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, it will be re-released by the TSG with an identifying change
21、 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 substanc
22、e, 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 125 111 V15.0.0 (2018-07)53GPP TS 25.111 version 15.0.0 Release 15Introduction In order to ensure correctness and consistency o
23、f the specifications (i.e., technical specifications and technical reports) under responsibility of the Technical Specification Groups (TSG) of the 3rdGeneration Partnership Project (3GPP), clear, manageable and efficient mechanisms are necessary to handle version control, change control, document u
24、pdating, distribution and management. Also, the fact that the specifications are/will be implemented by industry almost in parallel with the writing 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
25、the standard, from the past, at present and in the future, are well documented and controlled, so that technical consistency and backwards tracing are ensured. The 3GPP TSGs, and their sub-groups together with the Support Team are responsible for the technical content and consistency of the specific
26、ations whilst the Support Team alone is responsible for the proper management of the entire documentation, including specifications, meeting documents, administrative information and information exchange with other bodies. ETSI ETSI TS 125 111 V15.0.0 (2018-07)63GPP TS 25.111 version 15.0.0 Release
27、151 Scope The present document establishes the Location Measurement Unit (LMU) minimum RF characteristics of the FDD 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 spe
28、cific (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-
29、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 Station (BS) radio transmission and reception (FDD)”. 2 3GPP TS 45.004: “Modulation”. 3 3GPP TS 25.141: “Base Station (BS) conformance testing (FDD)”. 4 3G
30、PP TR 25.942: “Radio Frequency (RF) system scenarios”. 5 3GPP TR 21.905: “Vocabulary for 3GPP Specifications”. 3 Definitions and abbreviations 3.1 Definitions 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 prese
31、nt 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 this 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
32、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 the present document, the abbreviations given in TR 21.905 5 and the following apply. An abbreviation defined in the present document takes precedence ov
33、er 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 Error Ratio CW Continuous Wave (unmodulated signal) DL Down Link (forward link) FDD Frequency Division Duplexing GSM Global System for Mobile Communicat
34、ions LMU Location Measurement Unit UARFCN UTRA Absolute Radio Frequency Channel Number UE User Equipment UL Up Link (reverse link) ETSI ETSI TS 125 111 V15.0.0 (2018-07)73GPP TS 25.111 version 15.0.0 Release 15U-TDOA Uplink Time Difference Of Arrival WCDMA Wideband Code Division Multiple Access 4 Ge
35、neral 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 the 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
36、 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 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 Wi
37、de Area LMUs and Medium Range LMUs. Wide Area LMUs are characterised by requirements derived from Macro Cell scenarios with an LMU to UE minimum coupling 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
38、 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. 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 l
39、ocated at the Node B. The LMUs communicate with the SMLC that distributes UTDOA reference data from the reference LMU to other cooperating LMUs when performing UE positioning. ETSI ETSI TS 125 111 V15.0.0 (2018-07)83GPP TS 25.111 version 15.0.0 Release 15Figure 3.1: Example of UTDOA deployment 5 LMU
40、 radio characteristics An LMU performs BS receiver functions 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: Tab
41、le 4.1: Frequency bands Operating Band UL Frequencies UE 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
42、5.2 Channel arrangement The channel arrangement shall be as specified in Section 5.4 of 1. Node BNode BStand-AloneSMLCRNCRNCMSCSGSNIubIubIupcIupcLMULMULMULMULMUTypically located atNodeBETSI ETSI TS 125 111 V15.0.0 (2018-07)93GPP TS 25.111 version 15.0.0 Release 155.3 Reference sensitivity level Usin
43、g the reference measurement channel specification in TS 25.104 Annex A 1, the reference sensitivity level and performance of the LMU shall be as specified in Table 4.2. Table 4.2: LMU reference sensitivity levels LMU Class Reference measurement channel data rate LMU sensitivity level (dBm) BER Wide
44、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 range is the receiver ability to handle a rise of interference in the reception frequency channel. The receiver shall fulfil a specified BER requirement fo
45、r a specified sensitivity degradation of the wanted signal in the presence of an interfering AWGN signal in the same reception frequency channel. The 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 Un
46、it 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 Adjacent Channel Selectivity (ACS) Adjacent channel selectivity (ACS) is a measure of the LMU receiver ability to receive a wanted signal at its assigned cha
47、nnel frequency in the presence of an adjacent channel signal at a given frequency offset from the centre frequency of the assigned channel. ACS is the ratio of the LMU receiver filter attenuation on the assigned channel frequency to the receiver filter attenuation on the adjacent channel(s). The int
48、erference 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 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 Leve
49、l 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 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 performance as specified in Table 4.5-4.10 shall be met with a wanted and an interfering signal c
