YD/T 2576.2-2013Test method for user equipment of TD-LTE digital cellular mobile telecommunication network (phase 1) - Part 2: Radio transmission and reception performance test (English PDF)

4.1 Test environment description

The normal test environment refers to a combination of the conditions specified below. Except for the environmental adaptability test, the other test shall be performed in normal test environment, AND the reference test environment is as shown in Figure 1.

Instrument description. The main test instrument is the radio integrated tester (or system simulator), fading simulator (or the reduction signal generated from

IQ two ways of the baseband, sent to the integrated tester or simulator, AND then the fading signal is sent from the output end). The radio integrated test mainly simulates the base station equipment to perform communication with

UE AND measure the relevant indicators. The fading simulator mainly simulates various multi-fading modes on the channel.

4.2 Terminal information

Table 1 lists the information that the terminal manufacturer needs to provide before testing.

5.1 Overview

Unless otherwise stated, the characteristics of the transmitter are determined at the antenna interface of the user terminal equipment having a single transmission antenna.

Transient due to power step, OFF/ON, and ON/OFF transitions may occur at the boundaries of the time slot or symbol, the measurement period and whether or not to ignore the transient are described in the following chapters.

Unless otherwise stated, in order to measure the characteristics of the TDD transmitter, the test instrument shall be synchronized with the uplink signal.

5.2 Emission power

5.2.1 Maximum output power of UE

5.2.1 Purpose of test

In order to ensure that the maximum output power does not exceed the range specified by nominal power and tolerance.

5.2.1.2 Test applicability

The test is applicable to all phase 1 TD-LTE digital cellular mobile communication network user equipment.

5.2.1.3 Minimum consistency requirements

The following UE power levels define the maximum output power for any transmission bandwidth within the channel bandwidth. The measurement period is at least one subframe (1ms).

5.2.1.4 Test description

5.2.1.5 Initial condition

The initial condition (Initial condition s) refers to the set of steps of the test configuration and system simulator (SS) required to make the UE reach the correct test state for purpose of UE test.

The initial test configuration contains the environmental conditions, the test frequency, and the channel bandwidth based on the E-UTRA working band as specified in Table 5.4.2.1-1 in 3GPP TS36.521-1.All of these configurations shall be tested by test parameters applicable to each channel bandwidth, as shown in Table 3.

5.2.1.6 Test requirements

The maximum transmit power derived from step 3 shall be within the range as determined by the nominal maximum output power and the tolerance which is specified in Table 4.

5.4.2-1 and Table 5.4.4-1 in 3GPP TS36.521-1), the maximum input power requirement can be widened,

AND the lowerlimit of the deviation may be reduced by 1.5dB.

5.2.2 Maximum power reduction

5.2.3 Additional maximum power reduction

5.2.4 Configuration user equipment emission output power

5.2.4.1 Purposes of test

ENSURE that the UE output power does not exceed the maximum allowable uplink emission power PEMAX as specified by E-UTRAN or the maximum allowable power PUMAX as limited by the UE power level, whichever is smaller.

5.2.4.2 Test applicability

Configuration ID Bandwidth (MHz) Tolerance (dB)

The test is applicable to all phase 1 TD-LTE digital cellular mobile communication network user equipment.

5.2.4.3 Minimum consistency requirements

It is allowed for the UE to set its configured maximum output power PCMAX, which must comply with the following requirements.

5.2.4.4 Test description

5.2.4.4.1 Initial conditions

The initial condition refers to the set of steps of the test configuration and system simulator (SS) required to make the user equipment (UE) reach the correct measurement state for purpose of user equipment (UE) test.

5.2.4.4.2 Test procedure

1) In accordance with Table 27, the system simulator or the mobile switching subsystem (SS) uses the downlink control information format 0 (DCI format 0) to send the uplink scheduling information to the cell radio network temporary identifier (C_RNTI) in the progress of each uplink hybrid automatic repeat request (UL HARQ), in order to schedule the uplink reference measurement channel (UL RMC).

5.2.4.4.3 Message contents

The contents of the information are based on clause 4.6 of 3GPP TS36.508, except for Table 28.

5.3 Output power dynamic adjustment

6.1 Overview

Unless otherwise specified, the receiver characteristics are determined at the antenna connector of the UE. For a UE with only one internal antenna, it is assumed that the gain for the reference antenna of each antenna port is 0dBi.

6.2 Diversity characteristics

This clause assumes that the receiver is equipped with two Rx ports as a baseline. The 4 ports are to be studied later. All requirements shall be verified using all antenna ports at the same time (except for clause 6.9).

6.3 Reference sensitivity level

6.3.1 Purpose of test

VERIFY the ability of a certain reference measurement channel to receive data under the low signal level, ideal propagation conditions, and no additional noise when the UE is at the specified average throughput.

6.3.2 Test applicability

The test is applicable to all phase 1 TD-LTE digital cellular mobile communication network user equipment.

6.3.3 Minimum consistency requirements

The throughput shall be greater than or equal to 95% of the maximum throughput of the reference measurement channel described in Appendix

A.2.2, A.2.3 and A.3.2 of 3GPP TS36.521-1 (downlink signal unilateral dynamic OCNG OP.

6.3.4 Test description

6.3.4.1 Initial conditions

6.3.4.3 Message content

Message content is in accordance with clause 4.6 of 3GPP TS36.508, with the following exceptions.

6.3.5 Test requirements

The throughput shall be greater than or equal to 95% of the maximum throughput of the reference measurement channel as described in Appendix

A.3.2 of 3GPP TS36.521.1, AND the parameters are as shown in Table 144 and Table 145.

6.4 Maximum input level

6.5 Adjacent channel selectivity (ACS)

7.1 TDD PDSCH demodulation (cell specific reference signal)

7.2 PCFlCH/PDCCH demodulation

7.2.1 TDD PCFlCH/PDCCH single antenna port performance

7.2.2 TDD PCFICH/PDCCH transmission diversity performance

7.2.2.1 TDD PCFlCH/PDCCH transmission diversity 2x2

7.2.2.2 TDD PCFICH/PDCCH transmission diversity 2x2 (R9 and later)

7.2.2.3 TDD PCFICH/PDCCH transmission diversity 4x2

7.2.2.3.1 Purpose of test

VERIFY the demodulation performance of the PCFICH/PDCCH, that is, the average probability of miss-detection of the downlink scheduling grant (Pm-dsg), which shall be less than the reference value given below for a given

SNR and transmission diversity. PDCCH and PCHICH are combined for the test, AND the reference measurement channel is as defined in A.3.5.1.

7.2.2.3.2 Test applicability

The test is applicable to all phase 1 TD-LTE digital cellular mobile communication network user equipment.

7.2.2.3.3 Minimum test requirements

The receiver characteristics of the PDCCH/PCFICH are determined by the probability of miss-detection of the downlink scheduling grant (Pm-dsg).

7.2.2.3.4 Test description

7.2.2.4 TDD PCFICH/PDCCH transmission diversity 4x2 (R9 and later)

7.2.2.4.1 Purpose of test

VERIFY the demodulation performance of the PCFICH/PDCCH, that is, the average probability of miss-detection of the downlink scheduling grant (Pm-dsg), which shall be less than the reference value given below for a given

SNR and transmission diversity. PDCCH and PCHICH are combined for the test, AND the reference measurement channel is as defined in A.3.5.1.

7.3 PHICH demodulation

7.3.1 TDD PHICH single antenna performance

7.3.1.1 Purpose of test

This test verifies the performance of the terminal single antenna to demodulate the PHICH at a given SNR. The index used is the probability of average miss-detection of ACK into NACK. The measurement indicator at the designated measurement channel shall be less than the specified value.

7.3.1.2 Test applicability

The test is applicable to all phase 1 TD-LTE digital cellular mobile communication network user equipment.

8.1 Overview

For the test case in this clause, the UE does not always detect the PDCCH, which will cause the uplink ACK/NACK transmission to be statDTX. When the downlink configuration that evaluates the CQI performance does not use the retransmission, the UE may attempt to merge the multiple transmissions of the data due to the missed new data indication in the lost PDCCH transmission, so the BLER and throughput calculations must be deducted from those packets which are considered as retransmission.

8.2 CQI report under AWGN conditions

The accuracy of the channel quality indication (CQI) report under non-frequency selective conditions depends on the report change and the

BLER performance corresponding to the transmission format as indicated by the reported CQI value.

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