8 Performance requirements
37.145-13GPPActive Antenna System (AAS) Base Station (BS) conformance testingPart 1: conducted conformance testingRelease 17TS
8.1 General
Performance requirements specify the ability of the AAS BS to correctly demodulate signals in various conditions and configurations.
The demodulation requirements for an AAS BS are the same as non-AAS BS demodulation requirements specified for:
– Single RAT UTRA operation in TS 25.104 [9] clause 8 for FDD operation, and in TS 25.105 [10] clause 8 for TDD operation,
– Single RAT E-UTRA operation in TS 36.104 [11], clauses 8.2 – 8.4 (for PUSCH, PUCCH and PRACH) and 8.6 – 8.7 (for subslot-PUSCH and SPUCCH).
– NR operation in TS 38.104 [36], clauses 8.2-8.5.
The test requirements for the AAS BS performance requirements have hence been referenced from:
– TS 25.141 [18] clause 8 for UTRA FDD,
– TS 25.142 [20] clause 8 for UTRA TDD,
– TS 36.141 [17] clauses 8.2 – 8.4 (for PUSCH, PUCCH and PRACH) and 8.6 – 8.7 (for subslot-PUSCH and SPUCCH) for E-UTRA, and
– TS 38.104 [36] clauses 8.2 – 8.5 for NR.
Necessary amendments for the AAS BS architecture are made in this clause.
8.2 Performance requirements for MSR
For single RAT UTRA operation in FDD, the minimum performance requirements are specified in clause 8.3.
For single RAT UTRA operation in TDD 1,28Mcps option, the minimum performance requirements are specified in clause 8.4.
For single RAT E-UTRA operation, the minimum performance requirements are specified in clause 8.5.
For NR operation, the minimum performance requirements are specified in clause 8.6.
8.3 Performance requirements for UTRA FDD
8.3.1 Definition and applicability
Performance requirements for single RAT UTRA operation in FDD are specified for the measurement channels defined in TS 25.104 [2]. The requirements only apply to those measurement channels that are supported by AAS BS. For FRC8 in TS 25.104 [2] the non E-DPCCH boosting and E-DPCCH boosting requirement only apply for the option supported by the AAS BS. The performance requirements for the high speed train scenarios defined in TS 25.104 [2] and TS 25.105 [3] are optional.
Unless stated otherwise, performance requirements apply for a single cell only. Performance requirements for an AAS BS supporting DC-HSUPA or DB-DC-HSUPA are defined in terms of single carrier requirements. The requirements in clause 8 shall be met with the transmitter unit(s) associated with the TAB connectors(s) in the operating band ON.
NOTE: In normal operating conditions the TAB connector(s) are configured to transmit and receive at the same time. The transmitter unit(s) associated with the TAB connectors may be OFF for some of the tests.
In the referred UTRA specifications and in this clause, the term BS with RX diversity refers to performance requirements for two demodulation branches, and BS without RX diversity refers to performance requirements for one demodulation branch.
For AAS BS with RX diversity, only the BS performance requirements with RX diversity apply, the required Eb/N0 shall be applied separately for each demodulation branch.
For AAS BS without RX diversity, only the BS performance requirements without RX diversity apply. The required Eb/N0 shall be applied for each AAS BS demodulation branch.
The Eb/N0 used is defined as:
Where:
is the received total energy of DPDCH, DPCCH, S-DPCCH, HS-DPCCH, E-DPDCH, S-E-DPDCH, E-DPCCH and S-E-DPCCH per PN chip per demodulation branch from all branches
is the total one-sided noise power spectral density due to all noise sources
is the number of chips per frame
is the number of information bits in DTCH excluding CRC bits per frame
Table 8.3.1-1: Summary of AAS BS performance targets for single RAT UTRA operation in FDD
|
Physical channel |
Measurement channel |
Static |
Multi-path Case 1 |
Multi-path Case 2 |
Multi-path Case 3 |
Moving |
Birth / Death |
High Speed Train (Note) |
|
Performance metric |
||||||||
|
12.2 kbps |
BLER<10-2 |
BLER<10-2 |
BLER<10-2 |
BLER<10-2 |
BLER <10-2 |
BLER <10-2 |
BLER <10-2 |
|
|
DCH |
64 kbps |
BLER< 10-1,10-2 |
BLER< 10-1, 10-2 |
BLER< 10-1,10-2 |
BLER < 10-1, 10-2,10-3 |
BLER < 10-1,10-2 |
BLER < 10-1,10-2 |
– |
|
144 kbps |
BLER< 10-1,10-2 |
BLER< 10-1,10-2 |
BLER< 10-1,10-2 |
BLER < 10-1, 10-2,10-3 |
– |
– |
– |
|
|
384 kbps |
BLER< 10-1,10-2 |
BLER< 10-1,10-2 |
BLER< 10-1,10-2 |
BLER < 10-1, 10-2,10-3 |
– |
– |
– |
|
|
NOTE: Optional condition, not applicable for all BSs. |
||||||||
In the referenced test requirements from TS 25.141 [15] the method to test describes connection to one or a number of BS antenna connectors. When applying these methods to the AAS BS connection shall be made to the declared TAB connectors (see table 4.10-1, D8.1) which represent the demodulation branches.
8.3.2 Minimum Requirement
The minimum requirements for the single RAT UTRA operation in FDD for each of the tests specified in clauses 8.2 to 8.13 of TS 25.141 [18] are the demodulation performance requirements specified in clauses 8.2 to 8.12 of TS 25.104 [9].
8.3.3 Test purpose
The test shall verify the receiver’s ability to achieve the specified performance metrics under the measurement channels and conditions for a given Ec/N0 or Eb/N0 for each of the demodulation performance requirements specified in clauses 8.2 to 8.12 of TS 25.104 [9].
8.3.4 Method of test
8.3.4.1 Initial Conditions
The initial conditions for each of the tests as specified in clauses 8.2 to 8.13 of TS 25.141 [18], shall be the same as those specified in clauses 8.2 to 8.13 of TS 25.141 [18].
With the exception that instead of connecting to BS antenna connectors as stated in TS 25.141 [18], clause 8 connection shall be made to the declared TAB connectors which represent the demodulation branches (see table 4.10-1, D6.74).
All unused TAB connectors shall be terminated. Receiver units associated with unused TAB connectors may be turned OFF.
8.3.4.2 Procedure
The initial conditions shall be the same as those specified in clauses 8.2 to 8.13 of TS 25.141 [18].
8.3.5 Test Requirement
The test requirements for each of the tests, as specified in clauses 8.2 to 8.13 of TS 25.141 [18], shall be the same as those in clauses 8.2 to 8.13 of TS 25.141 [18].
In the referenced test requirements in this clause, the term "BS with RX diversity" should be replaced with performance requirements for two demodulation branches, and the term "BS without RX diversity" should be replaced with performance requirements for one demodulation branch.
8.4 Performance requirements for UTRA TDD
8.4.1 Definition and applicability
Performance requirements for single RAT UTRA operation in TDD are specified for the measurement channels defined in TS 25.105 [3]. The requirements only apply to those measurement channels that are supported by AAS BS. The performance requirements for the high speed train conditions defined in TS 25.105 [3] are optional. All Bit Error Ratio (BER) and Block Error Rate (BLER) measurements shall be carried out according to the general rules for statistical testing defined in recommendation ITU-T O.153 [34] and annex F of TS 25.142 [20].
Unless stated otherwise, performance requirements apply for a single carrier only. Performance requirements for a AAS BS supporting MC-HSUPA are defined in terms of single carrier requirements.
The characteristics of the white noise source, simulating interference from other cells (Ioc), shall comply with the AWGN interferer definition in TS 25.105 [10], clause 5.18.
In the referred UTRA specifications and in this clause, the term BS with dual RX diversity refers to performance requirements for two demodulation branches, and BS without RX diversity refers to performance requirements for one demodulation branch.
For AAS BS with RX diversity, only the BS performance requirements with dual RX diversity apply, the required Îor/Ioc shall be applied separately for each demodulation branch.
For AAS BS without RX diversity, only the BS performance requirements without dual RX diversity apply. The required Îor/Ioc shall be applied for each AAS BS demodulation branch.
Table 8.4.1-1: Summary of AAS BS performance targets for single RAT UTRA operation in TDD
|
Physical channel |
Measurement channel |
Static |
Multi-path Case 1 |
Multi-path Case 2 (Note) |
Multi-path Case 3 (Note) |
High speed train (Note) |
|
Performance metric |
||||||
|
12,2 kbps |
BLER < 10-2 |
BLER < 10-2 |
BLER < 10-2 |
BLER < 10-2 |
BLER<10-2 |
|
|
DCH |
64 kbps |
BLER < 10-1, 10-2 |
BLER < 10-1, 10-2 |
BLER < 10-1, 10-2 |
BLER < 10-1, 10-2, 10-3 |
BLER< 10-1, 10-2 |
|
144 kbps |
BLER < 10-1, 10-2 |
BLER < 10-1, 10-2 |
BLER < 10-1, 10-2 |
BLER < 10-1, 10-2, 10-3 |
– |
|
|
384 kbps |
BLER < 10-1, 10-2 |
BLER < 10-1, 10-2 |
BLER < 10-1, 10-2 |
BLER < 10-1, 10-2, 10-3 |
– |
|
|
NOTE: Optional condition, not applicable for all BSs. |
||||||
In the referenced test requirements from TS 25.142 [19] the method to test describes connection to one or a number of BS antenna connectors. When applying these methods to the AAS BS connection shall be made to the declared TAB connectors (see table 4.10-1, D8.1) which represent the demodulation branches.
8.4.2 Minimum Requirement
The minimum requirements for the single RAT UTRA operation in TDD for each of the tests specified in clauses 8.2 to 8.5 of TS 25.142 [20] are the demodulation performance requirements specified in clauses 8.2 to 8.5 of TS 25.105 [10].
8.4.3 Test purpose
The test shall verify the receiver’s ability to achieve the specified performance metrics under the measurement channels and conditions for a given Îor/Ioc for each of the demodulation performance requirements specified in clauses 8.2 to 8.5 of TS 25.105 [10].
8.4.4 Method of test
8.4.4.1 Initial Conditions
The initial conditions for each of the tests as specified in clauses 8.2 to 8.5 of TS 25.142 [20], shall be the same as those specified in clauses 8.2 to 8.5 of TS 25.142 [20].
With the exception that instead of connecting to BS antenna connectors as stated in clauses 8.2 to 8.5 of TS 25.142 [20] connection shall be made to the declared TAB connectors which represent the demodulation branches (see table 4.10-1, D6.74).
All unused TAB connectors shall be terminated. Receiver units associated with unused TAB connectors may be turned OFF.
8.4.4.2 Procedure
The initial conditions shall be the same as those specified in clauses 8.2 to 8.5 of TS 25.142 [20].
8.4.5 Test Requirement
The test requirements for each of the tests, as specified in clauses 8.2 to 8.5 of TS 25.142 [20], shall be the same as those in clauses 8.2 to 8.5 of TS 25.142 [20].
In the referenced test requirements in this clause, the term "BS with RX diversity" should be replaced with performance requirements for two demodulation branches, and the term "BS without RX diversity" should be replaced with performance requirements for one demodulation branch.
8.5 Performance requirements for E-UTRA
8.5.1 Definition and applicability
Performance requirements for single RAT E-UTRA operation are specified for the fixed reference channels (FRC) and propagation conditions defined in TS 36.104 [8] annex A and annex B, respectively. The requirements only apply to those FRCs that are supported by the AAS BS.
Unless stated otherwise, performance requirements apply for a single carrier only. Performance requirements for a single RAT E-UTRA operation supporting carrier aggregation are defined in terms of single carrier requirements. For FDD operation the requirements shall be met with the transmitter unit(s) associated with the TAB connectors(s) in the operating band ON.
NOTE: In normal operating conditions the TAB connector(s) in FDD operation are configured to transmit and receive at the same time. The transmitter unit(s) associated with the TAB connectors may be OFF for some of the tests.
In the referred E-UTRA specification, the term "RX antennas" refers to demodulation branches (i.e. not physical antennas).
The SNR used in this clause is specified based on a single carrier and defined as:
SNR = S / N
Where:
S is the total signal energy in the subframe on a single TAB connector.
N is the noise energy in a bandwidth corresponding to the transmission bandwidth over the duration of a subframe.
For enhanced performance requirements type A in TS 36.104 [4], the SINR used in this clause is specified based on a single carrier and defined as:
Where:
is the total signal energy in the subframe on a single TAB connector.
is the summation of the received energy of the strongest interferers explicitly defined in a test procedure plus the white noise energy N, in a bandwidth corresponding to the transmission bandwidth over the duration of a subframe on a single TAB connector. The respective energy of each interferer relative to 
is defined by its associated DIP value.
In the referenced test requirements from TS 36.141 [14] the method to test describes connection to one or a number of BS antenna connectors. When applying these methods to the AAS BS connection shall be made to the declared TAB connectors (see table 4.10-1, D8.1) which represent the demodulation branches.
8.5.2 Minimum Requirement
The minimum requirements for single RAT E-UTRA operation for each of the tests specified in clauses 8.2 – 8.4 (for PUSCH, PUCCH and PRACH) and 8.6 – 8.7 (for subslot-PUSCH and SPUCCH) of TS 36.141 [17] are the demodulation performance requirements specified in clauses 8.2 – 8.4 and 8.6 – 8.7 of TS 36.104 [11].
8.5.3 Test purpose
The test shall verify the receiver’s ability to achieve the specified performance metrics under the measurement channels and conditions for a given SNR or SINR for each of the demodulation performance requirements specified in clauses 8.2 – 8.4 and 8.6 – 8.7 of TS 36.104 [11].
8.5.4 Method of test
8.5.4.1 Initial Conditions
The initial conditions for each of the tests as specified in clauses 8.2 – 8.4 and 8.6 – 8.7 of TS 36.141 [17], shall be the same as those specified in clauses 8.2 – 8.4 and 8.6 – 8.7 of TS 36.141 [17].
With the exception that instead of connecting to BS antenna connectors as stated in TS 36.141 [17] clause 8 connection shall be made to the declared TAB connectors which represent the demodulation branches (see table 4.10-1, D6.74).
All unused TAB connectors shall be terminated. Receiver units associated with unused TAB connectors may be turned OFF.
8.5.4.2 Procedure
The procedure shall be the same as those specified in clauses 8.2 – 8.4 and 8.6 – 8.7 of TS 36.141 [17].
8.5.5 Test Requirement
The test requirements for each of the tests, as specified in clauses 8.2 – 8.4 and 8.6 – 8.7 of TS 36.141 [17], shall be the same as those in clauses 8.2 – 8.4 and 8.6 – 8.7 of TS 36.141 [17].
In the referenced test requirements in this clause, the term "number of RX antennas" should be replaced by the number of demodulation branches.
8.6 Performance requirements for NR
8.6.1 Definition and applicability
Conducted performance requirements specify the ability of the BS type 1-H to correctly demodulate signals in various conditions and configurations. Conducted performance requirements are specified at the TAB connector(s).
Performance requirements for NR operation are specified for the fixed reference channels (FRC) and propagation conditions defined in TS 38.104 [36] annex A and annex G, respectively. The requirements only apply to those FRCs that are supported by the NR BS.
Unless stated otherwise, performance requirements apply for a single carrier only. Performance requirements for a NR operation supporting carrier aggregation are defined in terms of single carrier requirements.
For FDD operation the requirements in clause 8 shall be met with the transmitter units associated with TAB connectors in the operating band turned ON.
NOTE: In normal operating conditions, transceivers in FDD operation are configured to transmit and receive at the same time. The associated transmitter unit(s) may be OFF for some of the tests as specified in TS 38.141-1 [37].
In the referred NR specification, the term "RX antennas" refers to demodulation branches (i.e. not physical antennas).
The SNR used in this clause is specified based on a single carrier and defined as:
SNR = S / N
Where:
S is the total signal energy in the slot on a single TAB connector.
N is the noise energy in a bandwidth corresponding to the transmission bandwidth over the duration of a slot on a single TAB connector.
8.6.2 Minimum Requirement
The minimum requirements for NR operation for each of the tests specified in clauses 8.2 – 8.4 (for PUSCH, PUCCH and PRACH) of TS 38.141-1 [37] are the demodulation performance requirements specified in clauses 8.2 – 8.4 of TS 38.104 [36].
8.6.3 Test purpose
The test shall verify the receiver’s ability to achieve the specified performance metrics under the measurement channels and conditions for a given SNR for each of the demodulation performance requirements specified in clauses 8.2 – 8.4 of TS 38.104 [36].
8.6.4 Method of test
8.6.4.1 Initial conditions
The initial conditions for each of the or each of the PUSCH, PUCCH or PRACH requirements shall be the same as those specified in related clauses 8.2 – 8.4 of TS 38.141-1 [37].
Connection shall be made to the declared TAB connectors which represent the demodulation branches (see table 4.10-1, D6.74).
All unused TAB connectors shall be terminated. Receiver units associated with unused TAB connectors may be turned OFF.
8.6.4.2 Procedure
The procedure shall be the same as those specified in clauses 8.2 – 8.4 of TS 38.141-1 [37].
8.6.5 Test Requirement
The test requirements for each of the PUSCH, PUCCH or PRACH requirements shall be the same as those in related clauses 8.2 – 8.4 of TS 38.141‑1 [37].
In the referenced test requirements, the term "number of RX antennas" should be replaced by the number of demodulation branches.
Annex A (normative):
Characteristics of interfering signals
Annex B (normative):
Environmental requirements for the BS equipment