9.1.2A TDD RSTD Measurement Reporting Delay for UE Category 1bis

37.571-13GPPPart 1: Conformance test specificationTSUniversal Terrestrial Radio Access (UTRA) and Evolved UTRA (E-UTRA) and Evolved Packet Core (EPC)User Equipment (UE) conformance specification for UE positioning

9.1.2A.1 Test purpose

To verify that the RSTD measurement reporting delay meets the requirements in an environment with fading propagation conditions.

9.1.2A.2 Test applicability

This test applies to E-UTRA TDD UE Category 1bis release 13 and forward that supports UE-assisted OTDOA.

9.1.2A.3 Minimum conformance requirements

Same as 9.1.2.3 but using Table 9.1.2A.3-1 instead of Table 9.1.2.3-1.

Table 9.1.2A.3-1: Number of PRS positioning occasions within

Positioning subframe configuration period

Number of PRS positioning occasions

f1 Note 1

160 ms

32

>160 ms

16

Note 1: When only intra-frequency RSTD measurements are performed over cells belonging to the serving TDD carrier frequency f1

The normative reference for this requirement is TS 36.133 [23] clause 8.1.2.5.4 and A.8.12.2.

9.1.2A.4 Test description
9.1.2A.4.1 Initial conditions

Same as 9.1.2.4.1 with the following exceptions:

1. Connect the SS, faders and AWGN noise sources to the UE antenna connector or antenna connectors as shown in Annex A, Figure A.4, using only the main Tx/Rx path.

2. The general test parameter settings are set up according to Table 9.1.2A.4.1-1.

Table 9.1.2.4A-1: General test parameters for E-UTRAN TDD intra-frequency RSTD measurement reporting delay under fading propagation conditions

Parameter

Unit

Value

Comment

Reference cell

Cell 1

Reference is the cell in the OTDOA assistance data with respect to which the RSTD measurement is defined, as specified in 3GPP TS 36.214 [6] and 3GPP TS 36.355 [4]. The reference cell is the serving cell in this test case.

Neighbour cells

Cell 2 and Cell 3

Cell 2 and Cell 3 appear at random places in the neighbour cell list in the OTDOA assistance data, but Cell 2 always appears in the first half of the list, whilst Cell 3 appears in the second half of the list.

PCFICH/PDCCH/PHICH parameters

DL Reference Measurement Channel R.6 TDD

As specified in TS 36.521-3 [25] clause A.2.2

Channel Bandwidth (BWchannel)

MHz

10

PRS Transmission Bandwidth Note 2

RB

50

PRS are transmitted over the system bandwidth

PRS configuration index Note 2

174

This corresponds to periodicity of 320 ms and PRS subframe offset of DL subframes, as defined in 3GPP TS 36.211 [26], Table 6.10.4.3-1

Number of consecutive downlink positioning subframes Note 2

1

As defined in 3GPP TS 36.211 [26]. The number of subframes in a positioning occasion

Physical cell ID PCI Note 2

(PCI of Cell 1 – PCI of Cell 2)mod6=0

and

(PCI of Cell 1 – PCI of Cell 3)mod6=0

The cell PCIs are selected such that the relative shifts of PRS patterns among cells are as given by the test parameters

TDD uplink-downlink configuration

1

As specified in TS 36.211 [26], Section 4.2; corresponds to a configuration with 5 ms switch-point periodicity and two downlink consecutive subframes

TDD special subframe configuration

6

As specified in TS 36.211 [26], Section 4.2; corresponds to DwPTS of and UpPTS of

CP length Note 2

Normal

The same CP length applies for DL and UL

DRX

ON

DRX parameters are further specified in Table 9.1.2.4-2

Radio frame receive time offset between the cells at the UE antenna connectorNote 3

s

Cell 2 to Cell 1: 1

Cell 3 to Cell 1: -1

PRS are transmitted from synchronous cells

Expected RSTD Note 1

s

Cell 2: 3

Cell 3: 3

Other neighbour cells: randomly between -3 and 3

The expected RSTD is what is expected at the receiver. The corresponding parameter in the OTDOA assistance data specified in TS 36.355 [4] is the expectedRSTD indicator

Expected RSTD uncertainty for all neighbour cells Note 1

s

5

The corresponding parameter in the OTDOA assistance data specified in TS 36.355 [4] is the expectedRSTD-Uncertainty index

Number of cells provided in OTDOA assistance data

16

Including the reference cell

PRS muting info Note 2

Cell 1: ‘1111111100000000’

Cell 2: ‘0000000011111111’

Cell 3: ‘1111111100000000’

Corresponds to prs-MutingInfo defined in TS 36.355 [4]

T1

s

3

The length of the time interval from the beginning of each test

T2

s

2.56

The length of the time interval that follows immediately after time interval T1

T3

s

2.56

The length of the time interval that follows immediately after time interval T2

Note 1: Parameters “Expected RSTD” and “Expected RSTD uncertainty for all neighbour cells” are not settable parameters. These are parameters signalled in LPP only. For the values to be used in LPP see Table 9.1.2.4.3-5 and TS 37.571-5 [20], clause 7.2.2.

Note 2: Parameters “PRS Transmission Bandwidth”, “PRS configuration index”, “Number of consecutive downlink positioning subframes”, “Physical cell ID PCI”, “CP length”, and “PRS muting info” are settable parameters and also parameters signalled in LPP. The values to be used for “Physical cell ID PCI” are as follows: Cell 1: 0, Cell 2: 6, Cell 3: 12. For all the values to be used in LPP see Table 9.1.2.4.3-5 and TS 37.571-5 [20], clause 7.2.2.

Note 3: The parameter “Radio frame receive time offset between the cells at the UE antenna connector” is not a settable parameter but is used to set the “true RSTD” values in step 6 of clause 9.1.2.4.1.

9.1.2A.4.2 Test procedure

Same as 9.1.2.4.2

9.1.2A.4.3 Message contents

Same as 9.1.2.4.3 with the following exceptions:

Table 9.1.2A.4.3-1: LPP RequestLocationInformation

Derivation Path: Table 9.1.2.4.3-3

Information Element

Value/remark

Comment

Condition

LPP-Message ::= SEQUENCE {

lpp-MessageBody CHOICE {

c1 CHOICE {

requestLocationInformation SEQUENCE {

criticalExtensions CHOICE {

c1 CHOICE {

requestLocationInformation-r9 SEQUENCE {

commonIEsRequestLocationInformation

SEQUENCE {

qos SEQUENCE {

responseTime SEQUENCE {

time

6

See clause 9.1.2A.5

}

}

}

}

}

}

}

}

}

}

9.1.2A.5 Test requirement

Table 9.1.2.5-1 and 9.1.2.5-2 define the primary level settings including test tolerances for the test.

The response time including test tolerance is 6.3 s. The response time is equal to the LPP time IE value plus the test tolerance. The LPP time IE value is derived from the RSTD reporting delay plus T, where T = 150 ms, giving a value of 5110 ms. This is rounded up to the next allowed LPP value of 6 seconds. The RSTD measurement reporting delay in the test is derived from the following expression, , where =8 and =16 are the parameters specified in clause 9.1.2A.3 and Table 9.1.2A.3‑1. This gives the total RSTD reporting delay of 4960 ms for the 15 neighbour cells including Cell 2 and Cell 3 with respect to the reference cell, Cell 1.

The test tolerances are defined in clauses C.1.3 and C4.

The rate of successful tests during repeated tests shall be at least 90% with a confidence level of 95%.