A.10 Timing Accuracy
25.1533GPPRelease 17TSUTRA repeater conformance testing (LCR TDD)
Frequency reference
Frame Trigger
LCR TDD Signal Generator
Spectrum analyzer
Repeater under test
Figure A.10: Measuring system set-up for Timing Accuracy.
Note that a repeater is a bi-directional device. The signal generator may need protection.
Annex B (informative):
Derivation of Test Requirements
The Test Requirements in this specification have been calculated by relaxing the Minimum Requirements of the core specification using the Test Tolerances defined in subclause 4.2. When the Test Tolerance is zero, the Test Requirement will be the same as the Minimum Requirement. When the Test Tolerance is non-zero, the Test Requirements will differ from the Minimum Requirements, and the formula used for this relaxation is given in table B.1.
|
Clause number |
Title |
Minimum Requirement in TS 25.116 |
Test Tolerance |
Test Requirement in TS 25.153 |
|
6 |
Maximum output power |
In normal conditions Table 6.1 |
0,7 dB |
Formula: Upper limit + TT Lower limit – TT In normal conditions refer to Table 6.4 |
|
In extreme conditions Tabel 6.2 |
0,7dB |
In extreme conditions refer to Table 6.5 |
||
|
9.1 |
Spectrum emission mask |
Tables 9.1, 9.2 and 9.3: “Maximum level” = X dB |
1,5 dB |
Formula: Maximum level + TT Refer to tables 9.5, 9.6 and 9.7 |
|
7 |
Frequency stability |
7.1 minimum requirement |
12 Hz |
Formula: Relative error + TT Refer to 7.5 Test requirements |
|
8 |
Out of Band Gain |
Table 8.1: Out of band gain limits |
0,5 dB |
Formula: Maximum level + TT Refer to table 8.2 |
|
9.2 |
Spurious emissions |
Tables 9.8, to 9.19 |
0 dB |
|
|
10.1 |
Error Vector Magnitude |
10.1.2 Minimum requirement |
0 % |
Formula: RSS Stimulus EVM and Repeater EVM to get target EVM Refer to 10.1.5 Test requirements |
|
10.2 |
Peak code domain error |
10.2.2Minimum requirement |
1,1 dB |
Formula: Maximum error + TT Refer to 10.2.5 Test requirements |
|
11 |
Input intermodulation |
11.2 Minimum requirements, and Tables 11.1 ,11.2and 11.3 |
1,2 dB |
Maximum in-band power increase + TT Refer to 11.5 Test requirements. |
|
12 |
Output intermodulation |
12.2 Minimum requirements |
1,5 dB for spectrum emission mask. 0 dB for spurious emissions |
Maximum level + TT Refer to tables 9.5 to 9.19 |
Table B.1: Derivation of Test Requirements
Annex C (informative):
Acceptable uncertainty of Test Equipment
This informative annex specifies the critical parameters of the components of an overall Test System (e.g. signal generators, signal analysers etc.) which are necessary when assembling a Test System which complies with subclause5.1 Acceptable uncertainty of Test System. These Test Equipment parameters are fundamental to the accuracy of the overall Test System and are unlikely to be improved upon through System Calibration.
Table C.1: Equipment accuracy
|
Test |
Equipment accuracy |
Test condition |
|
6 Output power |
Not critical |
Not critical |
|
9.1 Spectrum emission mask |
Not critical |
Not critical |
|
9.2 Spurious emissions |
Not critical |
Not critical |
|
11 Input intermodulation (interferer requirement) |
Not critical |
Not critical |
|
7 Frequency error |
±10 Hz + timebase = 12 Hz |
Range 0 to 500 Hz. (This is to allow for UE range that at 0,1 PPM is larger than BTS). |
|
10.1 Error vector magnitude |
±2,5 % (for single code) |
P_Max-3 to P_Max – 18 dB |
|
10.2 Peak code domain error |
± 1 dB |
Measurements in the range -25 dB to -30 dB at signal power = Pmax |
|
8 Out of band gain |
||
|
11 Input intermodulation |
Not critical |
Not critical |
|
12 Output intermodulation |
Not critical |
Not critical |
|
13 ACRR |
||
|
14 Timing Accuracy |
Not critical |
Not critical |
Annex D (informative):
Change history
|
Change history |
|||||||
|
Date |
TSG # |
TSG Doc. |
CR |
Rev |
Subject/Comment |
Old |
New |
|
2009-10 |
RAN4#52 bis |
R4-093748 |
TS skeleton created from 3GPP TS template. |
0.0.1 |
|||
|
2010-02 |
RAN4#54 |
R4-100999 |
TS with the TP approved at RAN4#52bis and RAN4#53 R4-093756 Text proposal for TS25.153: Output Power R4-094018 Text proposal for TS25.153: Frequency Error R4-093752 Text proposal for TS25.153: EVM R4-093757 Text proposal for TS25.153: PCDE R4-093755 Text proposal for TS25.153: Output Intermodulation R4-094017 Text proposal for TS25.153: Frequency bands and channel arrangements R4-093753 Text proposal for TS25.153: Input Intermodulation R4-093754 Text proposal for TS25.153:Out of Band Gain R4-093751 Text proposal for TS25.153: ACRR R4-094019 Text proposal for TS25.153: Timing Accuracy R4-093759 Text proposal for TS25.153: Unwanted Emissions R4-093760 Text proposal for 25.153: Clause 1 to Clause 3 R4-094638 Text proposal for 25.153: Clause 4 R4-094768 Text proposal for 25.153: Annex A to Annex D R4-100998 Correction of the Figure A.10 of TS 25.153 |
0.0.1 |
1.0.0 |
||
|
2010-03 |
RAN#47 |
RP-100111 |
Presentation to TSG for approval |
1.0.0 |
1.0.0 |
||
|
2010-03 |
RAN#47 |
RP-100111 |
Approved by TSG RAN |
1.0.0 |
10.0.0 |
||
|
2012-09 |
SP-57 |
– |
– |
– |
Update to Rel-11 version (MCC) |
10.0.0 |
11.0.0 |
|
2014-09 |
SP-65 |
– |
– |
– |
Update to Rel-12 version (MCC) |
11.0.0 |
12.0.0 |
|
2016-01 |
SP-70 |
– |
– |
– |
Update to Rel-13 version (MCC) |
12.0.0 |
13.0.0 |
|
2017-03 |
RAN#75 |
– |
– |
– |
Update to Rel-14 version (MCC) |
13.0.0 |
14.0.0 |
|
Change history |
|||||||
|
Date |
Meeting |
TDoc |
CR |
Rev |
Cat |
Subject/Comment |
New version |
|
2018-09 |
RAN#81 |
Update to Rel-15 version (MCC) |
15.0.0 |
||||
|
2020-06 |
SA#88 |
– |
– |
– |
– |
Update to Rel-16 version (MCC) |
16.0.0 |
|
2022-03 |
SA#95 |
Update to Rel-17 version (MCC) |
17.0.0 |
||||