3GPP TS 25.111 V9.0.0: Location Measurement Unit (LMU) performance specification

3GPP TS 25.111 V9.0.0 (2009-12)
Technical Specification
3rd Generation Partnership Project;
Technical Specification Group Radio Access Network;
Location Measurement Unit (LMU) performance specification; User Equipment (UE) positioning in UTRAN
(Release 9)


The present document has been developed within the 3rd Generation Partnership Project (3GPP TM) and may be further elaborated for the purposes of 3GPP.	 
The present document has not been subject to any approval process by the 3GPP Organizational Partners and shall not be implemented.	 
This Specification is provided for future development work within 3GPP only. The Organizational Partners accept no liability for any use of this Specification.
Specifications and reports for implementation of the 3GPP TM system should be obtained via the 3GPP Organizational Partners' Publications Offices.



Keywords
UMTS, radio

3GPP
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Contents
 TOC \o "1-9" Foreword	 PAGEREF _Toc217297991 \h 4
Introduction	 PAGEREF _Toc217297992 \h 5
1	Scope	 PAGEREF _Toc217297993 \h 6
2	References	 PAGEREF _Toc217297994 \h 6
3	Definitions and abbreviations	 PAGEREF _Toc217297995 \h 6
3.1	Definitions	 PAGEREF _Toc217297996 \h 6
3.2	Abbreviations	 PAGEREF _Toc217297997 \h 6
4	General	 PAGEREF _Toc217297998 \h 7
4.1	Main concepts	 PAGEREF _Toc217297999 \h 7
4.2	LMU Classes	 PAGEREF _Toc217298000 \h 7
4.3	U-TDOA architecture	 PAGEREF _Toc217298001 \h 7
5	LMU radio characteristics	 PAGEREF _Toc217298002 \h 8
5.1	Frequency bands	 PAGEREF _Toc217298003 \h 8
5.2	Channel arrangement	 PAGEREF _Toc217298004 \h 8
5.3	Reference sensitivity level	 PAGEREF _Toc217298005 \h 9
5.4	Dynamic range	 PAGEREF _Toc217298006 \h 9
5.5	Adjacent Channel Selectivity (ACS)	 PAGEREF _Toc217298007 \h 9
5.6	Blocking characteristics	 PAGEREF _Toc217298008 \h 9
5.7	Intermodulation characteristics	 PAGEREF _Toc217298009 \h 13
5.8	Spurious emissions	 PAGEREF _Toc217298010 \h 14
6	LMU measurement requirements	 PAGEREF _Toc217298011 \h 15
6.1	General	 PAGEREF _Toc217298012 \h 15
6.2	RRC States supported	 PAGEREF _Toc217298013 \h 15
6.3	Maximum response times	 PAGEREF _Toc217298014 \h 15
6.4	Nominal time accuracy	 PAGEREF _Toc217298015 \h 15
6.5	Multipath scenarios	 PAGEREF _Toc217298016 \h 16
6.6	Moving scenario	 PAGEREF _Toc217298017 \h 16
6.7	Cross correlation	 PAGEREF _Toc217298018 \h 16
Annex A (informative):	Change history	 PAGEREF _Toc217298019 \h 17

 Foreword
This Technical Specification has been produced by the 3rd 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.
Introduction
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) of the 3rd Generation 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 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 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 specifications 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.
1	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 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 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]	3GPP 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 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 this is the power (transmitted or received) in a bandwidth of at least (1+ α) 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 α 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 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 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
UARFCN	UTRA Absolute Radio Frequency 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 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 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 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 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 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 LMU’s 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 performing UE positioning.

 EMBED Visio.Drawing.6  
Figure 3.1: Example of UTDOA deployment
5	LMU 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:
Table 4.1: Frequency bands
Operating Band
UL Frequencies
UE transmit, LMU receive
I
1920 – 1980 MHz
II
1850 -1910 MHz
III
1710-1785 MHz
IV
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 MHz

b)	Deployment in other frequency bands is not precluded
5.2	Channel arrangement
The channel arrangement shall be as specified in Section 5.4 of [1].
5.3	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 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 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 for 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
Unit
Reference measurement channel data rate
12.2
12.2
kbps
Wanted signal mean power
-91
-81
dBm
Interfering 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 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 the 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 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
dBm
Interfering 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 coupled to the LMU antenna input using the following parameters for the blocking and narrowband blocking requirements:
Table 4.5: Blocking performance requirement for Wide Area LMU
Operating Band
Center Frequency of Interfering Signal
Interfering Signal mean power
Wanted Signal mean power
Minimum Offset of Interfering Signal
Type of Interfering Signal
I
1920 – 1980 MHz
-40 dBm
-115 dBm 
10 MHz
WCDMA signal *
1900 – 1920 MHz
1980 – 2000 MHz
-40 dBm
-115 dBm 
10 MHz
WCDMA signal *
1 MHz -1900 MHz
2000 MHz – 12750 MHz
-15 dBm
-115 dBm 
⎯
CW carrier
II
1850 – 1910 MHz
-40 dBm
-115 dBm 
10 MHz
WCDMA signal *
1830 – 1850 MHz
1910 – 1930 MHz
-40 dBm
-115 dBm 
10 MHz
WCDMA signal *
1 MHz – 1830 MHz
1930 MHz – 12750 MHz
-15 dBm
-115 dBm 
 ⎯
CW carrier
III
1710 – 1785 MHz
-40 dBm
-115 dBm 
10 MHz
WCDMA signal *
1690 – 1710 MHz
1785 – 1805 MHz
-40 dBm
-115 dBm 
10 MHz
WCDMA signal *
1 MHz – 1690 MHz
1805 MHz – 12750 MHz
-15 dBm
-115 dBm 
 ⎯
CW carrier
IV
1710 – 1755 MHz
-40 dBm
-115 dBm 
10 MHz
WCDMA signal *
1690 – 1710 MHz
1755 – 1775 MHz
-40 dBm
-115 dBm 
10 MHz
WCDMA signal *
1 MHz – 1690 MHz
1775 MHz – 12750 MHz
-15 dBm
-115 dBm 
 ⎯
CW carrier
V
824-849 MHz
-40 dBm
-115 dBm 
10 MHz
WCDMA signal *
804-824 MHz
849-869 MHz
-40 dBm
-115 dBm 
10 MHz
WCDMA signal *
1 MHz – 804 MHz
869 MHz – 12750 MHz
-15 dBm
-115 dBm 
⎯
CW carrier
VI
810 – 830 MHz
840 – 860 MHz
-40 dBm
-115 dBm 
10 MHz
WCDMA signal *
1 MHz – 810 MHz
860 MHz – 12750 MHz
-15 dBm
-115 dBm 
⎯
CW carrier
VII
2500 – 2570 MHz
-40 dBm
-115 dBm 
10 MHz
WCDMA signal *

2480 – 2500 MHz
2570 – 2590 MHz
-40 dBm
-115 dBm 
10 MHz
WCDMA signal *

1 MHz -2480 MHz
2590 MHz – 12750 MHz
-15 dBm
-115 dBm 
⎯
CW carrier
VIII
880 – 915 MHz
-40 dBm
-115 dBm 
10 MHz
WCDMA signal *

860 – 880 MHz
915 – 925 MHz
-40 dBm
-115 dBm 
10 MHz
WCDMA signal *

1 MHz -860 MHz
925 MHz – 12750 MHz
-15 dBm
-115 dBm 
⎯
CW carrier
IX
1749.9 – 1784.9 MHz
-40 dBm
-115 dBm
10 MHz
WCDMA signal *
1729.9 – 1749.9 MHz
1784.9 – 1804.9 MHz
-40 dBm
-115 dBm
10 MHz
WCDMA signal *
1 MHz – 1729.9 MHz
1804.9 MHz – 12750 MHz
-15 dBm
-115 dBm
⎯
CW carrier
X
1710 – 1770 MHz
-40 dBm
-115 dBm 
10 MHz
WCDMA signal *

1690 – 1710 MHz
1770 – 1790 MHz
-40 dBm
-115 dBm 
10 MHz
WCDMA signal *

1 MHz – 1690 MHz
1790 MHz – 12750 MHz
-15 dBm
-115 dBm 
 ⎯
CW carrier
NOTE *:	The characteristics of the W-CDMA interference signal are specified in Annex C of [1]


Table 4.6: Blocking performance requirement for the Medium range LMU
Operating Band
Center Frequency of Interfering Signal
Interfering Signal mean power
Wanted Signal mean power
Minimum Offset of Interfering Signal
Type of Interfering Signal
I
1920 – 1980 MHz
-35 dBm
-105 dBm 
10 MHz
WCDMA signal *
1900 – 1920 MHz
1980 – 2000 MHz
-35 dBm
-105 dBm 
10 MHz
WCDMA signal *
1 MHz -1900 MHz
2000 MHz – 12750 MHz
-15 dBm
-105 dBm 
⎯
CW carrier
II
1850 – 1910 MHz
-35 dBm
-105 dBm 
10 MHz
WCDMA signal *
1830 – 1850 MHz
1910 – 1930 MHz
-35 dBm
-105 dBm 
10 MHz
WCDMA signal *
1 MHz – 1830 MHz
1930 MHz – 12750 MHz
-15 dBm
-105 dBm 
 ⎯
CW carrier
III
1710 – 1785 MHz
-35 dBm
-105 dBm 
10 MHz
WCDMA signal *
1690 – 1710 MHz
1785 – 1805 MHz
-35 dBm
-105 dBm 
10 MHz
WCDMA signal *
1 MHz – 1690 MHz
1805 MHz – 12750 MHz
-15 dBm
-105 dBm 
 ⎯
CW carrier
IV
1710 – 1755 MHz
-35 dBm
-105 dBm 
10 MHz
WCDMA signal *
1690 – 1710 MHz
1755 – 1775 MHz
-35 dBm
-105 dBm 
10 MHz
WCDMA signal *
1 MHz – 1690 MHz
1775 MHz – 12750 MHz
-15 dBm
-105 dBm 
 ⎯
CW carrier
V
824-849 MHz
-35 dBm
-105 dBm 
10 MHz
WCDMA signal *
804-824 MHz
849-869 MHz
-35 dBm
-105 dBm 
10 MHz
WCDMA signal *
1 MHz – 804 MHz
869 MHz – 12750 MHz
-15 dBm
-105 dBm 
⎯
CW carrier
VI
810 – 830 MHz
840 – 860 MHz
-35 dBm
-105 dBm 
10 MHz
WCDMA signal *
1 MHz – 810 MHz
860 MHz – 12750 MHz
-15 dBm
-105 dBm 
⎯
CW carrier
VII
2500 – 2570 MHz
-35 dBm
-105 dBm 
10 MHz
WCDMA signal *
2480 – 2500 MHz
2570 – 2590 MHz
-35 dBm
-105 dBm 
10 MHz
WCDMA signal *
1 MHz -2480 MHz
2590 MHz – 12750 MHz
-15 dBm
-105 dBm 
⎯
CW carrier
VIII
880 – 915 MHz
-35 dBm
-105 dBm 
10 MHz
WCDMA signal *
860 – 880 MHz
915 – 925 MHz
-35 dBm
-105 dBm 
10 MHz
WCDMA signal *
1 MHz -860 MHz
925 MHz – 12750 MHz
-15 dBm
-105 dBm 
⎯
CW carrier
IX
1749.9 – 1784.9 MHz
-35 dBm
-105 dBm
10 MHz
WCDMA signal *
1729.9 – 1749.9 MHz
1784.9 – 1804.9 MHz
-35 dBm
-105 dBm
10 MHz
WCDMA signal *
1 MHz – 1729.9 MHz
1804.9 MHz – 12750 MHz
-15 dBm
-105 dBm
⎯
CW carrier
X
1710 – 1770 MHz
-35 dBm
-105 dBm 
10 MHz
WCDMA signal *

1690 – 1710 MHz
1770 – 1790 MHz
-35 dBm
-105 dBm 
10 MHz
WCDMA signal *

1 MHz – 1690 MHz
1790 MHz – 12750 MHz
-15 dBm
-105 dBm 
 ⎯
CW carrier
NOTE *:	The characteristics of the W-CDMA interference signal are specified in Annex C of [1]

Table 4.7: Blocking performance requirement (narrowband) for the Wide Area LMU
Operating Band
Center Frequency of Interfering Signal
Interfering Signal mean power
Wanted Signal mean power
Minimum Offset of Interfering Signal
Type of Interfering Signal
II
1850 – 1910 MHz
- 47 dBm
-115 dBm 
2.7 MHz
GMSK modulated*
III
1710 – 1785 MHz
- 47 dBm
-115 dBm 
2.8 MHz
GMSK modulated*
IV
1710 – 1755 MHz
- 47 dBm
-115 dBm 
2.7 MHz
GMSK modulated*
V
824 – 849 MHz
- 47 dBm
-115 dBm 
2.7 MHz
GMSK modulated*
VIII
880 – 915 MHz
- 47 dBm
-115 dBm 
2.8 MHz
GMSK modulated*
X
1710 – 1770 MHz
- 47 dBm
-115 dBm 
2.7 MHz
GMSK modulated*
NOTE *:	GMSK modulation as defined in TS 45.004 [2].

Table 4.8: Narrowband blocking performance requirement for the Medium Range LMU
Operating Band
Center Frequency of Interfering Signal
Interfering Signal mean power
Wanted Signal mean power
Minimum Offset of Interfering Signal
Type of Interfering Signal
II
1850 – 1910 MHz
- 42 dBm
-105 dBm 
2.7 MHz
GMSK modulated*
III
1710 – 1785 MHz
- 42 dBm
-105 dBm 
2.8 MHz
GMSK modulated*
IV
1710 – 1755 MHz
- 42 dBm
-105 dBm 
2.7 MHz
GMSK modulated*
V
824 – 849 MHz
- 42 dBm
-105 dBm 
2.7 MHz
GMSK modulated*
VIII
880 – 915 MHz
- 42 dBm
-105 dBm 
2.8 MHz
GMSK modulated*
X
1710 – 1770 MHz
- 42 dBm
-105 dBm 
2.7 MHz
GMSK modulated*
NOTE *:	GMSK modulation as defined in TS 45.004 [2].

Additional blocking requirements shall be applied for the protection of the LMU receiver in the presence of GSM900, DCS1800, PCS1900, GSM850, UTRA TDD, and UTRA FDD in bands I to X.
Table 4.9: Additional blocking performance requirement for Wide Area LMU.
Co-located BS type
Center Frequency of Interfering Signal
Interfering Signal mean power
Wanted Signal mean power
Type of Interfering Signal
Macro GSM900
921 – 960 MHz
+16 dBm
-115 dBm 
CW carrier
Macro DCS1800
1805 – 1880 MHz
+16 dBm
-115 dBm 
CW carrier
Macro PCS1900
1930 – 1990 MHz
+16 dBm
-115 dBm 
CW carrier
Macro GSM850
869 – 894 MHz
+16 dBm
-115 dBm 
CW carrier
WA UTRA-FDD Band I
2110 – 2170 MHz
+16 dBm
-115 dBm 
CW carrier
WA UTRA-FDD Band II
1930 – 1990 MHz
+16 dBm
-115 dBm 
CW carrier
WA UTRA-FDD Band III
1805 – 1880 MHz
+16 dBm
-115 dBm 
CW carrier
WA UTRA-FDD Band IV
2110 – 2155 MHz
+16 dBm
-115 dBm 
CW carrier
WA UTRA-FDD Band V
869 – 894 MHz
+16 dBm
-115 dBm 
CW carrier
WA UTRA-FDD Band VI
875 – 885 MHz
+16 dBm
-115 dBm 
CW carrier
WA UTRA-FDD Band VII
2620 – 2690 MHz
+16 dBm
-115 dBm 
CW carrier
WA UTRA-FDD Band VIII
925 – 960 MHz
+16 dBm
-115 dBm 
CW carrier
WA UTRA-FDD Band IX
1844.9 – 1879.9 MHz
+16 dBm
-115 dBm 
CW carrier
WA UTRA-FDD Band X
2110 – 2170 MHz
+16 dBm
-115 dBm 
CW carrier

Table 4.10: Additional blocking performance requirements for the LMU
Co-located BS type
Center Frequency of Interfering Signal
Interfering Signal mean power
Wanted Signal mean power
Type of Interfering Signal
Micro GSM900
921 – 960 MHz
-3 dBm
-105 dBm
CW carrier
Micro DCS1800
1805 – 1880 MHz
+5 dBm
-105 dBm
CW carrier
Micro PCS1900
1930 – 1990 MHz
+5 dBm
-105 dBm
CW carrier
Micro GSM850
869 – 894 MHz
-3 dBm
-105 dBm
CW carrier
MR UTRA-FDD Band I
2110 – 2170 MHz
+8 dBm
-105 dBm
CW carrier
MR UTRA-FDD Band II
1930 – 1990 MHz
+8 dBm
-105 dBm
CW carrier
MR UTRA-FDD Band III
1805 – 1880 MHz
+8 dBm
-105 dBm
CW carrier
MR UTRA-FDD Band IV
2110 – 2155 MHz
+8 dBm
-105 dBm
CW carrier
MR UTRA-FDD Band V
869 – 894 MHz
+8 dBm
-105 dBm
CW carrier
MR UTRA-FDD Band VI
875 – 885 MHz
+8 dBm
-105 dBm
CW carrier
MR UTRA-FDD Band VII
2620 – 2690 MHz
+8 dBm
-105 dBm 
CW carrier
MR UTRA-FDD Band VIII
925 – 960 MHz
+8 dBm
-105 dBm 
CW carrier
MR UTRA-FDD Band IX
1844.9 – 1879.9 MHz
+8 dBm
-105 dBm 
CW carrier
MR UTRA-FDD Band X
2110 – 2170 MHz
+8 dBm
-105 dBm
CW carrier

An additional blocking requirement may be applied for the protection of the LMU receivers when UTRA TDD is co-located with an LMU.
The current state-of-the-art technology does not allow a single generic solution for co-location with UTRA-TDD on adjacent frequencies for 30dB BS-BS minimum coupling loss. 
However, there are certain site-engineering solutions that can be used in these cases. These techniques are addressed in TR 25.942 [4].
For an LMU, the static reference performance as specified in clause 5.3 should be met with a wanted and an interfering signal coupled to BS antenna input using the parameters in Table 4.11.
Table 4.11: Blocking performance requirement for a Wide Area LMU when co-located with UTRA TDD BS in other bands.
Co-located BS type
Center Frequency of Interfering Signal
Interfering Signal mean power
Wanted Signal mean power
Type of Interfering Signal
Wide Area TDD
2585 – 2620 MHz
+16 dBm
-115 dBm 
CW carrier

5.7	Intermodulation characteristics
Third and higher order mixing of the two interfering RF signals can produce an interfering signal in the band of the desired channel.  Intermodulation response rejection is a measure of the capability of the receiver to receive a wanted signal on its assigned channel frequency in the presence of two or more interfering signals which have a specific frequency relationship to the wanted signal. 
The static reference performance as specified in clause 5.3 shall be met for a LMU when the following signals are coupled to LMU antenna input:
-	A wanted signal at the assigned channel frequency with a mean power of ‑115 dBm.
-	Two interfering signals with the following parameters. 
Table 4.12: Intermodulation performance requirement (Wide Area LMU)
Operating band
Interfering Signal mean power
Offset
Type of Interfering Signal
All bands
- 48 dBm
10 MHz
CW signal
- 48 dBm
20 MHz
WCDMA signal *
Note*:	The characteristics of the W-CDMA interference signal are specified in Annex C of [1]

Table 4.13: Narrowband intermodulation performance requirement (Wide Area LMU)
Operating band
Interfering Signal mean power
Offset
Type of Interfering Signal
II, III, IV, V, VIII, X
- 47 dBm
3.5 MHz
CW signal
- 47 dBm
5.9 MHz
GMSK modulated*
* GMSK as defined in TS45.004 [2]

The static reference performance as specified in clause 5.3 shall be met for a Medium Range LMU when the following signals are coupled to LMU antenna input:
-	A wanted signal at the assigned channel frequency with a mean power of ‑105 dBm.
-	Two interfering signals with the following parameters. 
Table 4.14: Intermodulation performance requirement (Medium Range LMU)
Operating band
Interfering Signal mean power
Offset
Type of Interfering Signal
All bands
- 44 dBm
10 MHz
CW signal
- 44 dBm
20 MHz
WCDMA signal *
Note*:	The characteristics of the W-CDMA interference signal are specified in Annex C of [1]

Table 4.15: Narrowband intermodulation performance requirement (Medium Range LMU)
Operating band
Interfering Signal mean power
Offset
Type of Interfering Signal
II, III, IV, V, VIII, X
- 43 dBm
3.5 MHz
CW signal
- 43 dBm
5.9 MHz
GMSK modulated*
* GMSK as defined in TS45.004 [2]

5.8	Spurious emissions
The spurious emissions power is the power of emissions generated or amplified in a receiver that appear at the LMU antenna connector. 
The power of any spurious emission shall not exceed:
Table 4.16: General LMU spurious emission requirement
Band
Maximum level
Measurement Bandwidth
Note
30MHz – 1 GHz
-57 dBm
100 kHz 

1 GHz – 12.75 GHz
-47 dBm
1 MHz
With the exception of frequencies between 12.5 MHz below the first carrier frequency and 12.5 MHz above the last carrier frequency used by the LMU.

In addition the following requirements shall be applied for the protection of UE, MS, and Node B, BS of the same and other systems, where the power of any spurious emission shall not exceed the limits: 
Table 4.17: Additional LMU Spurious emissions limits 
Operating Band
Band
Maximum level
Measurement Bandwidth
Note
I
1920 – 1980 MHz
-78 dBm
3.84 MHz 

II
1850 – 1910 MHz
-78 dBm
3.84 MHz

III
1710 – 1785 MHz
-78 dBm
3.84 MHz

IV
1710 – 1755 MHz
-78 dBm
3.84 MHz

V
824 – 849 MHz
-78 dBm
3.84 MHz

VI
815 – 850 MHz 
-78 dBm
3.84 MHz

VII
2500 – 2570 MHz
-78 dBm
3.84 MHz

VIII
880 – 915 MHz
-78 dBm
3.84 MHz

IX
1749.9 – 1784.9 MHz
-78 dBm
3.84 MHz

X
1710 – 1770 MHz
-78 dBm
3.84 MHz


In addition, the requirement in Table 4.18 may be applied to geographic areas in which both UTRA-TDD and UTRA-FDD are deployed.
Table 4.18: Additional spurious emission requirements for the TDD bands
Operating Band
Band
Maximum level
Measurement Bandwidth
Note
I
1900 – 1920 MHz
2010 – 2025 MHz
-78 dBm
3.84 MHz 
Not applicable in Japan
2010 – 2025 MHz
-52 dBm
1MHz
Applicable in Japan
VI, IX
2010 – 2025 MHz
-52 dBm
1MHz


6	LMU measurement requirements
6.1	General
All tests at specified detection levels require that the LMU detection threshold be set such that the false alarm rate is at or below 5 % when no signal is present (noise only).
6.2	RRC States supported
UTDOA positioning technique does work in CELL_DCH and CELL_FACH state, not in URA_PCH nor CELL_PCH state.
6.3	Maximum response times
1) The maximum time for a Master LMU to establish a reference signal shall be, after the data capture has started, less than 5 seconds.
2) The maximum time for the distribution of the reference signal to another LMU involved in the positioning shall be less than 3 seconds.
3) The maximum time of detection of the time of arrival in an LMU given the reference signal shall be less than 15 seconds.
6.4	Nominal time accuracy
Nominal Time Accuracy requirement verifies the difference between the detected time of arrival and the real time of arrival. 
In an AWGN environment with no fading or multi-paths, the standard deviation of the timing error of the LMU shall be less than 30 ns when the signal presence is correctly detected.
6.5	Multipath scenarios
The purpose of the test case is to verify the LMU receiver’s performance in multipath.
For the 12.2 kbps reference measurement channel specified in 3GPP TS 25.104 Annex A [1], and with Rx diversity (using both diversity paths), the LMU shall be capable of detecting the earliest path, for at least 90 % of the location attempts, at the levels in Table 5.1.
Nominal time accuracy for multipath fading scenarios includes an additional chip duration of 260 nanoseconds over that in Section 5.4.
Table 5.1:  Multipath detection level
Propagation condition
Detection level:  Signal to Noise level in (dB)
Note
Static (AWGN)
-51.2 dB
NOTE 1
Multipath fading Case 1
-47.2dB
NOTE 2
Multipath fading Case 2
- 43.8 dB
NOTE 2
Multipath fading Case 3
- 41.9 dB
NOTE 2
Multipath fading Case 4
- 39.8 dB
NOTE 2

NOTE 1:  Static propagation condition is described in 3GPP TS 25.104 Annex B.1 [1].
NOTE 2:  Multipath-fading case 1-4 is described in 3GPP TS 25.104 Annex B.2 [1].
6.6	Moving scenario
The purpose of the test case is to verify the LMU receiver’s performance to Doppler shift.
In an AWGN environment with no fading or multi-paths, and at a speed of 250km/h, the detectability of the LMU shall be degraded by no more than 1.5 dB.
6.7	Cross correlation
The ability of  the LMU to detect a weak terminal signal in the presence of a strong other terminal is covered in Section 5.5 when the other terminal interference is modelled as AWGN. 
Annex A (informative):
Change history

Change history
DateTSGDoc.CRRevSubject/CommentCatOldNew2005-08Initial version created0.1.02007-11Incorporate simulation results and synchronize with TS.1040.1.01.0.02007-1238RP-071015Approved version at RAN TSG # 381.0.07.0.02008-0339RP-0801221Correcting multipath detection level in LMU performance specificationF7.0.07.1.02008-12SP-42Upgraded unchanged from Rel-78.0.02009-12SP-46Upgraded unchanged from Rel-89.0.0 




















 STYLEREF ZA 3GPP TS 25.111 V9.0.0 (2009-12)
 PAGE 2
 STYLEREF ZGSM Release 9


3GPP