Content for TS 36.111 Word version: 18.0.0
1 Scope p. 6
The present document establishes the Location Measurement Unit (LMU) minimum UTDOA positioning requirement for the FDD and TDD mode of E-UTRAN.
2 References p. 6
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]
TR 21.905: "Vocabulary for 3GPP Specifications".
[2]
TS 36.305: "Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Stage 2 functional specification of User Equipment (UE) positioning in E-UTRAN".
[3]
TS 36.214: "Evolved Universal Terrestrial Radio Access (E-UTRA); Physical layer; Measurements".
[4]
TS 36.321: "Evolved Universal Terrestrial Radio Access (E-UTRA); Medium Access Control (MAC) protocol specification".
[5]
TS 36.459: "Evolved Universal Terrestrial Radio Access Network (E-UTRAN); SLm interface Application Protocol (SLmAP)".
[6]
TS 36.211: "Evolved Universal Terrestrial Radio Access (E-UTRA); Physical channels and modulation".
[7]
TS 36.104: "Evolved Universal Terrestrial Radio Access (E-UTRA); Base Station (BS) radio transmission and reception".
3 Definitions, symbols and abbreviations p. 6
3.1 Definitions p. 6
For the purposes of the present document, the terms and definitions given in TR 21.905 apply.
3.1A Symbols p. 6
For the purposes of the present document, the following symbols apply:
BWChannel
Channel bandwidth
BWSRS
SRS bandwidth
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
PREFSENS
The reference sensitivity power level
TSRS
The SRS periodicity in ms
Ts
The basic unit of time defined in clause 4 of TS 36.211
3.2 Abbreviations p. 7
For the purposes of the present document, the abbreviations given in TR 21.905 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.
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 p. 7
The UTDOA architecture is described in TS 36.305.
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
