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TECHNICAL SPECIFICATION
LTE;
Location Measurement Unit (LMU) performance specification;
Network based positioning systems in Evolved Universal
Terrestrial Radio Access Network (E-UTRAN)
(3GPP TS 36.111 version 15.0.0 Release 15)
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3GPP TS 36.111 version 15.0.0 Release 15 1 ETSI TS 136 111 V15.0.0 (2018-11)
Reference
RTS/TSGR-0436111vf00
Keywords
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3GPP TS 36.111 version 15.0.0 Release 15 2 ETSI TS 136 111 V15.0.0 (2018-11)
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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 be interpreted as being references to the corresponding ETSI deliverables.
The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under
.
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 expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
ETSI
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3GPP TS 36.111 version 15.0.0 Release 15 3 ETSI TS 136 111 V15.0.0 (2018-11)
Contents
Intellectual Property Rights . 2
Foreword . 2
Modal verbs terminology . 2
Foreword . 5
1 Scope . 6
2 References . 6
3 Definitions, symbols and abbreviations . 6
3.1 Definitions . 6
3.1A Symbols . 6
3.2 Abbreviations . 7
4 General . 7
5 LMU RF Requirements . 7
5.1 General . 7
5.1.1 Detection probability requirement and false alarm requirement . 9
5.1.2 Operating bands . 9
5.1.3 Operating bands . 10
5.2 Reference sensitivity level . 12
5.2.1 Minimum requirement . 12
5.3 Dynamic range . 12
5.3.1 Minimum requirement . 12
5.4 In-channel selectivity . 12
5.4.1 Minimum requirement . 13
5.5 Adjacent Channel Selectivity (ACS) and narrow-band blocking . 13
5.5.1 Minimum requirement . 13
5.6 Blocking . 14
5.6.1 General blocking requirement. 14
5.6.1.1 Minimum requirement . 14
5.7 Receiver spurious emissions. 15
5.7.1 Minimum requirement . 15
5.8 Receiver intermodulation . 16
5.8.1 Minimum requirement . 16
6 UL RTOA Measurement Time Requirements . 17
6.1 General . 17
6.2 Requirements . 18
6.2.1 Requirements for FDD without DRX . 18
6.2.2 Requirements for TDD without DRX . 19
6.2.3 UL RTOA Measurements upon Receiving SRS Configuration Update . 19
6.2.4 UL RTOA Measurements when Dropped SRS occurs . 20
6.3 Measurement Reporting Delay . 20
7 UL RTOA Measurement Accuracy Requirements . 20
7.1 General . 20
7.2 UL RTOA measurement accuracy . 20
7.2.1 UL RTOA measurement accuracy for a UE not configured with CA . 20
7.2.2 UL RTOA measurement accuracy for a UE configured with CA . 21
7.2.3 UL RTOA measurement accuracy when LMU is performing multiple UL RTOA measurements in
parallel . 22
7.2.3.1 Parallel UL RTOA measurements on the same carrier frequency . 22
7.2.3.2 Parallel UL RTOA measurements over two carrier frequencies . 23
8 UL RTOA Measurement Report Mapping . 24
9 Search Window for UL RTOA Measurements . 24
ETSI
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3GPP TS 36.111 version 15.0.0 Release 15 4 ETSI TS 136 111 V15.0.0 (2018-11)
Annex A (informative): Reference Measurement Channel . 26
Annex B (informative): Propagation Conditions . 30
B.1 Static Propagation condition . 30
B.2 Multi-path fading propagation conditions . 30
Annex C (informative): Characteristics of the interfering signals . 31
Annex D (informative): Change history . 32
History . 33
ETSI
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3GPP TS 36.111 version 15.0.0 Release 15 5 ETSI TS 136 111 V15.0.0 (2018-11)
Foreword
rd
This Technical Specification has been produced by the 3 Generation 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 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 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
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3GPP TS 36.111 version 15.0.0 Release 15 6 ETSI TS 136 111 V15.0.0 (2018-11)
1 Scope
The present document establishes the Location Measurement Unit (LMU) minimum UTDOA positioning requirement
for the FDD and TDD mode of E-UTRAN.
2 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, 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 in the same
Release as the present document.
[1] 3GPP TR 21.905: "Vocabulary for 3GPP Specifications".
[2] 3GPP TS 36.305: "Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Stage 2
functional specification of User Equipment (UE) positioning in E-UTRAN".
[3] 3GPP TS 36.214: "Evolved Universal Terrestrial Radio Access (E-UTRA); Physical layer;
Measurements".
[4] 3GPP TS 36.321: "Evolved Universal Terrestrial Radio Access (E-UTRA); Medium Access
Control (MAC) protocol specification".
[5] 3GPP TS 36.459: "Evolved Universal Terrestrial Radio Access Network (E-UTRAN); SLm
interface Application Protocol (SLmAP)".
[6] 3GPP TS 36.211: "Evolved Universal Terrestrial Radio Access (E-UTRA); Physical channels and
modulation".
[7] 3GPP TS 36.104: "Evolved Universal Terrestrial Radio Access (E-UTRA); Base Station (BS)
radio transmission and reception".
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in TR 21.905 [1] apply.
3.1A Symbols
For the purposes of the present document, the following symbols apply:
BW Channel bandwidth
Channel
BW SRS bandwidth
SRS
Ês Received energy per RE (power normalized to the subcarrier spacing) during the useful part of the
symbol, i.e. excluding the cyclic prefix, at the LMU antenna connector
Io The total received power density, including signal and interference, as measured at the UE antenna
connector
Iot The received power spectral density of the total noise and interference for a certain RE (power
integrated over the RE and normalized to the subcarrier spacing) as measured at the LMU antenna
connector
P The reference sensitivity power level
REFSENS
T
SRS
The SRS periodicity in ms
ETSI
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3GPP TS 36.111 version 15.0.0 Release 15 7 ETSI TS 136 111 V15.0.0 (2018-11)
T The basic unit of time defined in TS 36.211 clause 4
s
3.2 Abbreviations
For the purposes of the present document, the abbreviations given in TR 21.905 [1] 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 [1].
ACS Adjacent Channel Selectivity
DRX Discontinuous Reception
E-UTRAN Evolved Universal Terrestrial Radio Access Network
eNodeB evolved Node B
E-SMLC Enhanced Serving Mobile Location Center
ICS In-channel Selectivity
LMU Location Measurement Unit
SRS Sounding Reference Signal
UE User Equipment
UL Uplink
UTDOA Uplink Time Difference Of Arrival
4 General
The UTDOA architecture is described in TS 36.305 [2].
An LMU may be deployed in three ways:
● LMU class 1: LMU integrated into base station
● LMU class 2: LMU co-sited with base station and sharing antenna with the base station
● LMU class 3: standalone LMU with own receive antenna
5 LMU RF Requirements
5.1 General
The requirements in clause 5 are expressed for a single receiver antenna connector. For receivers with antenna diversity,
the requirements apply for each receiver antenna connector.
When the LMU is configured to receive multiple carriers for one or more UEs, all RF requirements are applicable for
each received carrier. For ACS, blocking and intermodulation characteristics, the negative offsets of the interfering
signal apply relative to the lower edge and positive offsets of the interfering signal apply relative to the higher edge.
Receiver test ports for LMU class 1 are illustrated in Figure 5.1-1. Receiver test ports for LMU class 2 are illustrated in
Figure 5.1-2. Receiver test ports for LMU class 3 are illustrated in Figure 5.1-3. If any external apparatus, e.g., a RX
amplifier, a filter or the combination of such devices is used, LMU RF requirements specified in this specification apply
at the far end antenna connector (port B); otherwise, the requirements apply at port A.
Requirements applicability for different LMU classes is summarized in Table 5.1-1.
ETSI
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3GPP TS 36.111 version 15.0.0 Release 15 8 ETSI TS 136 111 V15.0.0 (2018-11)
Figure 5.1-1: Two examples of receiver test ports for LMU class 1.
Figure 5.1-2: Receiver test ports for LMU class 2.
ETSI
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3GPP TS 36.111 version 15.0.0 Release 15 9 ETSI TS 136 111 V15.0.0 (2018-11)
From
antenna connector
External External
⇐
LNA device
e.g.
LMU
RX filter
(if any ) (if any)
Test port A Test port B
Figure 5.1-3: Receiver test ports for LMU class 3.
Table 5.1-1: Test ports and RF requirements applicability
LMU RF
Physical Node Test Port Comments
class Requirements
Test port determined
1 BS TS 36.104 A or B
per TS 36.104
Degradation of the
base station DL
performance and
base station UL
Test port determined
BS performance may B
per TS 36.104
occur when LMU
2
class 2 is co-sited
with the base
station.
Test port determined
LMU clauses 5.2-5.8 A or B per TS 36.111,
Figure 5.1-2
Test port determined
3 LMU clauses 5.2-5.8 A or B per TS 36.111,
Figure 5.1-3
5.1.1 Detection probability requirement and false alarm requirement
The performance metrics used in RF requirements are detection probability and false alarm. The probability of detection
is defined as the ratio of received measurement reports to the total number of measurement requests. The false alarm
rate is the probability of detection of a signal that is not present, and is defined as the percentage of the received
measurement reports to the total number of measurement requests with the measurement configuration of a signal that is
not present. The detection probability requirement is 99% and the false alarm requirement is 0.1%. The detection
probability requirement and the false alarm requirement apply for any number of receive ports, any channel bandwidth,
and all frame structures.
5.1.2 Operating bands
E-UTRA LMUs may operate in one or more of the operating bands defined in Table 5.1.2-1.
ETSI
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3GPP TS 36.111 version 15.0.0 Release 15 10 ETSI TS 136 111 V15.0.0 (2018-11)
Table 5.1.2-1: E-UTRA frequency bands
Uplink (UL) operating band Downlink (DL) operating band Duplex
E-UTRA
BS receive BS transmit Mode
Operating
UE transmit UE receive
Band
F – F F – F
UL_low UL_high DL_low DL_high
1 1920 MHz – 1980 MHz 2110 MHz – 2170 MHz FDD
2 1850 MHz – 1910 MHz 1930 MHz – 1990 MHz FDD
3 1710 MHz – 1785 MHz 1805 MHz – 1880 MHz FDD
4 1710 MHz – 1755 MHz 2110 MHz – 2155 MHz FDD
5 824 MHz – 849 MHz 869 MHz – 894MHz FDD
1
6 830 MHz – 840 MHz 875 MHz – 885 MHz FDD
7 2500 MHz – 2570 MHz 2620 MHz – 2690 MHz FDD
8 880 MHz – 915 MHz 925 MHz – 960 MHz FDD
9 1749.9 MHz – 1784.9 MHz 1844.9 MHz – 1879.9 MHz FDD
10 1710 MHz – 1770 MHz 2110 MHz – 2170 MHz FDD
11 1427.9 MHz – 1447.9 MHz 1475.9 MHz – 1495.9 MHz FDD
12 699 MHz – 716 MHz 729 MHz – 746 MHz FDD
13 777 MHz – 787 MHz 746 MHz – 756 MHz FDD
14 788 MHz – 798 MHz 758 MHz – 768 MHz FDD
15 Reserved Reserved FDD
16 Reserved Reserved FDD
17 704 MHz – 716 MHz 734 MHz – 746 MHz FDD
18 815 MHz – 830 MHz 860 MHz – 875 MHz FDD
19 830 MHz – 845 MHz 875 MHz – 890 MHz FDD
20 832 MHz – 862 MHz 791 MHz – 821 MHz
21 1447.9 MHz – 1462.9 MHz 1495.9 MHz – 1510.9 MHz FDD
22 3410 MHz – 3490 MHz 3510 MHz – 3590 MHz FDD
23 2000 MHz – 2020 MHz 2180 MHz – 2200 MHz FDD
24 1626.5 MHz – 1660.5 MHz 1525 MHz – 1559 MHz FDD
25 1850 MHz – 1915 MHz 1930 MHz – 1995 MHz FDD
26 814 MHz – 849 MHz 859 MHz – 894 MHz FDD
27 807 MHz – 824 MHz 852 MHz – 869 MHz FDD
28 703 MHz – 748 MHz 758 MHz – 803 MHz FDD
2
29 N/A 717 MHz – 728 MHz FDD
...
33 1900 MHz – 1920 MHz 1900 MHz – 1920 MHz TDD
34 2010 MHz – 2025 MHz 2010 MHz – 2025 MHz TDD
35 1850 MHz – 1910 MHz 1850 MHz – 1910 MHz TDD
36 1930 MHz – 1990 MHz 1930 MHz – 1990 MHz TDD
37 1910 MHz – 1930 MHz 1910 MHz – 1930 MHz TDD
38 2570 MHz – 2620 MHz 2570 MHz – 2620 MHz TDD
39 1880 MHz – 1920 MHz 1880 MHz – 1920 MHz TDD
40 2300 MHz – 2400 MHz 2300 MHz – 2400 MHz TDD
41 2496 MHz – 2690 MHz 2496 MHz – 2690 MHz TDD
42 3400 MHz – 3600 MHz 3400 MHz – 3600 MHz TDD
43 3600 MHz – 3800 MHz 3600 MHz – 3800 MHz TDD
44 703 MHz – 803 MHz 703 MHz – 803 MHz TDD
NOTE 1: Band 6 is not applicable.
NOTE 2: Restricted to E-UTRA operation when carrier aggregation is configured. The
downlink operating band is paired with the uplink operating band (external) of the
carrier aggregation configuration that is supporting the configured PCell.
5.1.3 Operating bands
LMU requirements are for the channel bandwidths listed in Table 5.1.3-1.
ETSI
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Channel edge
Resource block
Channel edge
3GPP TS 36.111 version 15.0.0 Release 15 11 ETSI TS 136 111 V15.0.0 (2018-11)
Table 5.1.3-1: Transmission bandwidth configuration NRB in E-UTRA channel bandwidths
Channel bandwidth
1.4 3 5 10 15 20
BWChannel [MHz]
Transmission bandwidth
6 15 25 50 75 100
configuration NRB
Figure 5.1.3-1 shows the relation between the Channel bandwidth (BW ) and the Transmission bandwidth
Channel
configuration (N ). The channel edges are defined as the lowest and highest frequencies of the carrier separated by the
RB
channel bandwidth, i.e. at F +/- BW /2.
C Channel
Channel Bandwidth [MHz]
Transmission Bandwidth Configuration [RB]
Transmission
Bandwidth [RB]
Center subcarrier (corresponds to DC in
Active Resource Blocks
baseband) is not transmitted in downlink
Figure 5.1.3-1: Definition of Channel Bandwidth and Transmission Bandwidth Configuration
for one E-UTRA carrier.
Figure 5.1.3-2 illustrates the aggregated channel bandwidth for intra-band carrier aggregation.
Figure 5.1.3-2: Definition of Aggregated Channel Bandwidth for intra-band carrier aggregation
The lower edge of the Aggregated Channel Bandwidth (BW ) is defined as F = F - F . The upper
Channel_CA edge_low C_low offset
edge of the aggregated channel bandwidth is defined as F = F + F . The Aggregated Channel Bandwidth,
edge_high C_high offset
BW is defined as follows:
Channel_CA,
BW = F - F [MHz]
Channel_CA edge_high edge_low
ETSI
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3GPP TS 36.111 version 15.0.0 Release 15 12 ETSI TS 136 111 V15.0.0 (2018-11)
5.2 Reference sensitivity level
The reference sensitivity power level P is the minimum mean power received at the antenna connector at which a
REFSENS
detection probability requirement and a false alarm requirement shall be met for a specified reference measurement
channel.
5.2.1 Minimum requirement
The LMU shall receive the reference measurement channel while meeting the detection probability and false alarm
requirement in clause 5.1.1. The reference measurement channel is described in Table 5.2.1-1 with parameters specified
in Annex A.
Table 5.2.1-1: LMU reference sensitivity levels
E-UTRA Reference sensitivity
Reference measurement
channel bandwidth power level, PREFSENS
channel
[MHz] [dBm]
1.4 Annex A -130.8
3 Annex A -130.8
5 Annex A -130.8
10 Annex A -130.8
15 Annex A -130.8
20 Annex A -130.8
5.3 Dynamic range
The dynamic range is specified as a measure of the capability of the receiver to receive a wanted signal in the presence
of an interfering signal inside the received channel bandwidth. In this condition, a detection probability requirement and
a false alarm requirement shall be met for a specified reference measurement channel. The interfering signal for the
dynamic range requirement is an AWGN signal.
5.3.1 Minimum requirement
The LMU shall receive the reference measurement channel while meeting the detection probability and false alarm
requirement in clause 5.1.1. The reference measurement channel is described in Table 5.2.1-1 with parameters specified
in Annex A.
Table 5.3.1-1: LMU dynamic range
E-UTRA Interfering
Reference Wanted signal Type of
channel signal mean
measurement mean power interfering
bandwidth power [dBm] /
channel [dBm] signal
[MHz] BWConfig
1.4 Annex A -108.5 -88.7 AWGN
3 Annex A -104.6 -84.7 AWGN
5 Annex A -102.4 -82.5 AWGN
10 Annex A -99.4 -79.5 AWGN
15 Annex A -97.6 -77.7 AWGN
20 Annex A -96.3 -76.4 AWGN
5.4 In-channel selectivity
In-channel selectivity (ICS) is a measure of the receiver ability to receive a wanted signal at its assigned resource block
locations in the presence of an interfering signal received at a larger power spectral density. In this condition, a
detection probability requirement and a false alarm requirement shall be met for a specified reference measurement
channel. The interfering signal shall be an E-UTRA signal as specified in Annex C and shall be time aligned with the
wanted signal.
ETSI
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3GPP TS 36.111 version 15.0.0 Release 15 13 ETSI TS 136 111 V15.0.0 (2018-11)
5.4.1 Minimum requirement
The LMU shall receive the reference measurement channel while meeting the detection probability and false alarm
requirement in clause 5.1.1. The reference measurement channel is specified in Annex A with parameters specified in
Table 5.2.1-1.
Table 5.4.1-1 E-UTRA LMU in-channel selectivity
E-UTRA
Reference Interfering
channel Wanted signal Type of interfering
measurement signal mean
bandwidth mean power [dBm] signal
channel power [dBm]
(MHz
1.4 MHz E-UTRA
1.4 Annex A -127.8 -91 PUCCH signal, 2 RBs
(see note)
3 MHz E-UTRA
3 Annex A -127.8 -85 PUSCH signal, 4 RBs
(see note)
5 MHz E-UTRA
5 Annex A -127.8 -85 PUSCH signal, 4 RBs
(see note)
10 MHz E-UTRA
10 Annex A -127.8 -85 PUSCH signal, 4 RBs
(see note)
15 MHz E-UTRA
15 Annex A -127.8 -85 PUSCH signal, 4 RBs
(see note)
20 MHz E-UTRA
20 Annex A -127.8 -85 PUSCH signal, 4 RBs
(see note)
NOTE: Except for the 1.4 MHz channel the wanted and interfering signal are placed
adjacently around Fc. For the 1.4 MHz channel the PUCCH interferer is placed at the
two edge resource blocks in the channel each having the specified signal power.
5.5 Adjacent Channel Selectivity (ACS) and narrow-band
blocking
Adjacent channel selectivi
...