7.3 Performance for LEE
37.5443GPPConformance testingRelease 16TSUniversal Terrestrial Radio Access (UTRA) and Evolved UTRA (E-UTRA)User Equipment (UE) Over The Air (OTA) performance
7.3.1 Total Radiated Sensitivity (TRS) for UTRA FDD LEE
Editor’s notes: This subclause is incomplete. The following items are missing or incomplete:
- Table 7.3.1.2-1 and 7.3.1.5-1 as they are not specified in TS 37.144 yet
- Applicability
7.3.1.1 Definition and applicability
The Total Radiated Sensitivity is defined as:
Where the effective isotropic sensitivity (EIS) is defined as the power available at the antenna output such as the sensitivity threshold is achieved for each polarization. is the solid angle describing the direction, is frequency. and are the orthogonal polarizations.
In these formulas and are the number of sampling intervals for theta and phi. and are the measurement angles. The sampling intervals are discussed further in Subclause 4.4.
The TRS can also be calculated from measurements in a Rayleigh fading 3 dimensional isotropic environment with in average uniform elevation and azimuth distribution. The calculation of the TRS is in this case based on searching for the lowest power received by the UE/MS for a discrete number of field combinations in the chamber that gives a BER that is better than the specified target BER level. By calibrating the average power transfer function, an absolute value of the TRS can be obtained. The following expression can be used to find the TRS.
where is the reference power transfer function for fixed measurement antenna n, is the reflection coefficient for fixed measurement antenna n and is the path loss in the cables connecting the measurement receiver to fixed measurement antenna n. These parameters are calculated from the calibration measurement and are further discussed in Annex B.2. is calculated by using the following equation:
where is the m:th value of the transfer function for fixed measurement antenna n, which gives the BER threshold. is the total number of values of the BER threshold power measured for each fixed measurement antenna.
[Applicability is TBD]
7.3.1.2 Minimum Requirements
The average TRS of low, mid and high channel of the LEE in the data transfers position for 1% BER with 12.2kbps DL reference channel as defined in Annex C.3 of TS25.101 [2] shall be lower than minimum performance requirements for roaming bands shown in Table 7.3.1.2-1 for notebook devices and in Table 7.3.1.2-2 for tablet devices. The averaging shall be done in linear scale for the TRS results.
In addition the maximum TRS of each measured channel in the data transfers position shall be better than minimum performance requirements for roaming bands shown in the columns “Max”.
Table 7.3.1.2-1: TRS minimum requirements for UTRA FDD roaming mode for notebook devices in the data transfers position and the primary mechanical mode
Operating band |
Unit |
<REFÎor> |
|
Average |
Max |
||
I |
dBm/3.84 MHz |
-103.5 |
-102.0 |
II |
dBm/3.84 MHz |
TBD |
TBD |
III |
dBm/3.84 MHz |
TBD |
TBD |
IV |
dBm/3.84 MHz |
TBD |
TBD |
V |
dBm/3.84 MHz |
TBD |
TBD |
VI |
dBm/3.84 MHz |
-101.5 |
-99.5 |
VII |
dBm/3.84 MHz |
TBD |
TBD |
VIII |
dBm/3.84 MHz |
-101.5 |
-99.5 |
IX |
dBm/3.84 MHz |
TBD |
TBD |
XIX |
dBm/3.84 MHz |
-101.5 |
-99.5 |
NOTE 1: For power class 3, 3bis and 4 this shall be achieved at the maximum output power. NOTE 2: Applicable for dual-mode GSM/UMTS. NOTE 3: Applicable for notebook devices. |
NOTE: TRS minimum performance requirements in Table 7.3.1.2-1 apply to HSPA and LTE UEs supporting only single carrier operation. Their applicability to multi-carrier operation is FFS. This is because it has not been verified whether the UEs measured to derive the requirements supported carrier aggregation or not.
Table 7.3.1.2-2: TRS minimum requirements for UTRA FDD roaming mode for tablet devices in the data transfers position and the primary mechanical mode
Operating band |
Unit |
<REFÎor> |
|
Average |
Max |
||
I |
dBm/3.84 MHz |
-105.75 |
-104.25 |
II |
dBm/3.84 MHz |
TBD |
TBD |
III |
dBm/3.84 MHz |
TBD |
TBD |
IV |
dBm/3.84 MHz |
TBD |
TBD |
V |
dBm/3.84 MHz |
-103.0 |
-101.0 |
VI |
dBm/3.84 MHz |
TBD |
TBD |
VII |
dBm/3.84 MHz |
TBD |
TBD |
VIII |
dBm/3.84 MHz |
TBD |
TBD |
IX |
dBm/3.84 MHz |
TBD |
TBD |
XIX |
dBm/3.84 MHz |
-103.0 |
-101.0 |
NOTE 1: For power class 3, 3bis and 4 this shall be achieved at the maximum output power. NOTE 2: Applicable for dual-mode GSM/UMTS. NOTE 3: Applicable for tablet devices with two antennas. |
The normative reference for this clause is TS 37.144 [12] Subclause 7.3.2.
7.3.1.3 Test purpose
The purpose of this test is to ensure that and of the UE is above specified limit. The lack of the reception sensitivity decreases the coverage area at the far side from Node B.
7.3.1.4 Method of test
7.3.1.4.1 Initial conditions
A radio communications tester or a corresponding device is used as a NB simulator to setup calls to the DUT. The NB simulator is also used to send test signals to the UE and measure the BER levels of the radio link and the information on the dedicated channel needed to extract the DUT receiver performances.
Chamber environment constraints and coordinate system shall be the same as described in Subclause A.3.
Phantom Specifications shall be the same as described in Subclause A.2.4. Parameters required for Notebooks are specified in Annex A.2.4.2 and those for Tablets are specified in Annex A.2.4.3.
Test environment: normal; see TS36.508 [10] Subclause 4.1.1.
Frequencies to be tested: low range, mid range, high range; see Table 5.1-2.
Positioning Requirements shall be the same as described in Subclause 4.3.
1) Position the UE according to the DUT positioning for devices with embedded modules specified in Subclause 4.3.5.
2) Set the SS downlink physical channels according to settings in Table 7.3.1.4.1-1.
3) Power on the UE.
4) A call is set up according to the Generic call setup procedure. The power control algorithm shall be set to Power Control Algorithm 2. Compressed mode shall be set to OFF.
5) Enter the UE into loopback test mode 2 and start the loopback test.
See TS 34.108 [4] and TS 34.109 [5] for details regarding generic call setup procedure and loopback test.
Table 7.3.1.4.1-1: Downlink Physical Channels transmitted during a connection
Physical Channel |
Power |
CPICH |
CPICH_Ec / DPCH_Ec = 7 dB |
P-CCPCH |
P-CCPCH_Ec/ DPCH_Ec = 5 dB |
SCH |
SCH_Ec / DPCH_Ec = 5 dB |
PICH |
PICH_Ec / DPCH_Ec = 2 dB |
DPCH |
Test dependent power |
7.3.1.4.2 Procedure
1) Send continuously Up power control commands to the UE.
2) As the UE reaches maximum power, start sending PN15 data pattern.
3) Measure EIS from one measurement point. EIS is the power transmitted from one specific direction to the UE causing BER value of 1% 0.2% using 20000 or more bits; see Annex E.20.
NOTE: To meet BER value target DL power level can be changed using user’s freely selectable algorithm.
4) Measure the EIS for every direction of selected sampling gird using two orthogonal polarizations to obtain TRS.
5) Calculate TRS using equations from Subclause 7.3.1.1.
NOTE: To speed up sensitivity measurements non standard setting (i.e. data speed, PCL, BER target) can be used in the measurements. However to obtain TRS result the measured EIS figures shall be normalized by
Where is sensitivity measurement done with standard setting, is sensitivity measurement done with non standard settings. is amount of reference measurement points.
To ensure accuracy of TRS, the amount of reference points measured should be at least 4. It is recommended to spread the reference measurements equally during the measurement time.
The measurement procedure is based on the measurement of the spherical sensitivity pattern of the DUT. The sensitivity values of the DUT at a predefined BER level are sampled in far field in a group of points located on a spherical surface enclosing the DUT. The EIS samples are taken using a constant sample step of 30° both in theta () and phi () directions. All the EIS samples are taken with two orthogonal polarizations, – and -polarisations (See Subclause 4.4).
The Total Radiated Sensitivity is calculated from the measured data by equation in Subclause 7.3.1.2.
7.3.1.4.3 Procedure, reverberation chamber method
1) Send continuously Up power control commands to the UE.
2) As the UE reaches maximum power, start sending PN15 data pattern.
3) Set the base station simulator to a specific output power and perform a BER measurement.
4) Increase or decrease the base station output power as needed, and repeat step 4 until the lowest output power is found that gives a BER value of 1% 0.2% using 20000 or more bits, see Annex E.20. This corresponds to .
NOTE: To meet BER value target DL power level can be changed using user’s freely selectable algorithm.
5) Repeat step 3 and 4 until a sufficient number of independent samples (see section 4.5) of has been measured.
7) Calculate TRS using equations from chapter 7.3.1.1.
NOTE 1: The measurement procedure is based on samples of the received signal power at the UE/MS from a full 3 dimensional isotropic environment with uniform elevation and azimuth field distribution. The power received by the DUT is undergoing Rayleigh fading and is transmitted by the fixed measurement antennas. Moreover, it is important that the samples collected are independent, in order to get sufficient accuracy of the estimated TRS value.
The Total Radiated Sensitivity is calculated from the measured data by equation in Subclause 7.3.1.2.
7.3.1.5 Test requirements
The average TRS of low, mid and high channel in the data transfers position for 1% BER with 12.2kbps DL reference channel as defined in Annex C.3 of TS 25.101 [2] shall be lower than test requirements for roaming bands shown in Table 7.3.1.5-1 for notebook devices and in Table 7.3.1.5-2 for tablet devices. The averaging shall be done in linear scale for the TRS results.
In addition the maximum TRS of each measured channel in the data transfers position shall be better than minimum performance requirements for roaming bands shown in the columns “Max”.
Table 7.3.1.5-1: TRS test requirements for UTRA FDD roaming mode for notebook devices in the data transfers position and the primary mechanical mode
Operating band |
Unit |
<REFÎor> |
|
Average |
Max |
||
I |
dBm/3.84 MHz |
-103.5+TT |
TBD+TT |
II |
dBm/3.84 MHz |
TBD+TT |
TBD+TT |
III |
dBm/3.84 MHz |
TBD+TT |
TBD+TT |
IV |
dBm/3.84 MHz |
TBD+TT |
TBD+TT |
V |
dBm/3.84 MHz |
TBD+TT |
TBD+TT |
VI |
dBm/3.84 MHz |
-101.5+TT |
TBD+TT |
VII |
dBm/3.84 MHz |
TBD+TT |
TBD+TT |
VIII |
dBm/3.84 MHz |
-101.5+TT |
TBD+TT |
IX |
dBm/3.84 MHz |
TBD+TT |
TBD+TT |
XIX |
dBm/3.84 MHz |
-101.5+TT |
TBD+TT |
NOTE 1: For power class 3, 3bis and 4 this shall be achieved at the maximum output power. NOTE 2: Applicable for dual-mode GSM/UMTS. NOTE 3: Applicable for notebook devices. |
NOTE: If the above Test Requirement differs from the Minimum Requirement then the Test Tolerance applied for this test is non-zero. The Test Tolerance for this test is defined and the explanation of how the Minimum Requirement has been relaxed by the Test Tolerance is given in Annex D.
Table 7.3.1.5-2: TRS test requirements for UTRA FDD roaming mode for tablet devices in the data transfers position and the primary mechanical mode
Operating band |
Unit |
<REFÎor> |
|
Average |
Max |
||
I |
dBm/3.84 MHz |
-105.75+TT |
-104.25+TT |
II |
dBm/3.84 MHz |
TBD+TT |
TBD+TT |
III |
dBm/3.84 MHz |
TBD+TT |
TBD+TT |
IV |
dBm/3.84 MHz |
TBD+TT |
TBD+TT |
V |
dBm/3.84 MHz |
-103.0+TT |
-101.0+TT |
VI |
dBm/3.84 MHz |
TBD+TT |
TBD+TT |
VII |
dBm/3.84 MHz |
TBD+TT |
TBD+TT |
VIII |
dBm/3.84 MHz |
TBD+TT |
TBD+TT |
IX |
dBm/3.84 MHz |
TBD+TT |
TBD+TT |
XIX |
dBm/3.84 MHz |
-103.0+TT |
-101.0+TT |
NOTE 1: For power class 3, 3bis and 4 this shall be achieved at the maximum output power. NOTE 2: Applicable for dual-mode GSM/UMTS. NOTE 3: Applicable for tablet devices with two antennas. |
NOTE: If the above Test Requirement differs from the Minimum Requirement then the Test Tolerance applied for this test is non-zero. The Test Tolerance for this test is defined and the explanation of how the Minimum Requirement has been relaxed by the Test Tolerance is given in Annex D.
7.3.2 Total Radiated Sensitivity (TRS) for UTRA LCR TDD LEE
Editor’s notes: This subclause is incomplete. The following items are missing or incomplete:
- Table 7.3.2.2-1 and 7.3.2.5-1 as they are not specified in TS 37.144 yet
- Text for Subclause 7.3.2.4.3 Procedure, reverberation chamber method
- Applicability
7.3.2.1 Definition and applicability
The Total Radiated Sensitivity is defined as:
Where the effective isotropic sensitivity (EIS) is defined as the power available at the antenna output such as the sensitivity threshold is achieved for each polarization. is the solid angle describing the direction, is frequency. and are the orthogonal polarizations.
In these formulas and are the number of sampling intervals for theta and phi. and are the measurement angles. The sampling intervals are discussed further in Subclause 4.4.
The TRS can also be calculated from measurements in a Rayleigh fading 3 dimensional isotropic environment with in average uniform elevation and azimuth distribution. The calculation of the TRS is in this case based on searching for the lowest power received by the UE/MS for a discrete number of field combinations in the chamber that gives a BER that is better than the specified target BER level. By calibrating the average power transfer function, an absolute value of the TRS can be obtained. The following expression can be used to find the TRS.
where is the reference power transfer function for fixed measurement antenna n, is the reflection coefficient for fixed measurement antenna n and is the path loss in the cables connecting the measurement receiver to fixed measurement antenna n. These parameters are calculated from the calibration measurement and are further discussed in Annex B.2. is calculated by using the following equation:
where is the m:th value of the transfer function for fixed measurement antenna n, which gives the BER threshold. is the total number of values of the BER threshold power measured for each fixed measurement antenna.
[Applicability is TBD]
7.3.2.2 Minimum Requirements
The average TRS of low, mid and high channel of the LEE in the data transfers position for 1% BER with 12.2kbps DL reference channel as defined in Annex C.3 of TS34.122 [8] shall be lower than minimum performance requirements for roaming bands shown in Table 7.3.2.2-1 for notebook devices and in Table 7.3.2.2-2 for tablet devices. The averaging shall be done in linear scale for the TRS results.
In addition the maximum TRS of each measured channel in the data transfers position shall be better than minimum performance requirements for roaming bands shown in the columns “Max”.
Table 7.3.2.2-1: TRS minimum requirements for UTRA LCR TDD roaming mode for notebook devices in the data transfers position and the primary mechanical mode
Operating Band |
Unit |
<REFÎor> |
|
– |
– |
Average |
Max |
a |
dBm/1.28 MHz |
TBD |
TBD |
b |
dBm/1.28 MHz |
TBD |
TBD |
c |
dBm/1.28 MHz |
TBD |
TBD |
d |
dBm/1.28 MHz |
TBD |
TBD |
e |
dBm/1.28 MHz |
TBD |
TBD |
f |
dBm/1.28 MHz |
TBD |
TBD |
NOTE 1: Applicable for dual-mode GSM/UTRA LCR TDD. NOTE 2: Applicable for notebook devices. |
Table 7.3.2.2-1: TRS minimum requirements for UTRA LCR TDD roaming mode for tablet devices in the data transfers position and the primary mechanical mode
Operating Band |
Unit |
<REFÎor> |
|
– |
– |
Average |
Max |
a |
dBm/1.28 MHz |
TBD |
TBD |
b |
dBm/1.28 MHz |
TBD |
TBD |
c |
dBm/1.28 MHz |
TBD |
TBD |
d |
dBm/1.28 MHz |
TBD |
TBD |
e |
dBm/1.28 MHz |
TBD |
TBD |
f |
dBm/1.28 MHz |
TBD |
TBD |
NOTE 1: Applicable for dual-mode GSM/UTRA LCR TDD. NOTE 2: Applicable for notebook devices. |
The normative reference for this clause is TS 37.144 [12] Subclause 7.3.3.
7.3.2.3 Test purpose
The purpose of this test is to ensure that and of the UE is above specified limit. The lack of the reception sensitivity decreases the coverage area at the far side from Node B.
7.3.2.4 Method of test
7.3.2.4.1 Initial conditions
A radio communications tester or a corresponding device is used as a NB simulator to setup calls to the DUT. The NB simulator is also used to send test signals to the UE and measure the BER levels of the radio link and the information on the dedicated channel needed to extract the DUT receiver performances.
Chamber environment constraints and coordinate system shall be the same as described in Subclause A.3.
Phantom Specifications shall be the same as described in Subclause A.2.4. Parameters required for Notebooks are specified in Annex A.2.4.2 and those for Tablets are specified in Annex A.2.4.3.
Test environment: normal; see TS36.508 [10] Subclause 4.1.1.
Frequencies to be tested: low range, mid range, high range; see Table 5.2-2.
Positioning Requirements shall be the same as described in Subclause 4.3.
1) Position the UE according to the DUT positioning for devices with embedded modules specified in Subclause 4.3.5.
2) Set the SS downlink physical channels according to settings in Table 7.3.2.4.1-1.
3) Power on the UE.
4) A call is set up according to the Generic call setup procedure. The power control algorithm shall be set to Power Control Algorithm 2. Compressed mode shall be set to OFF.
5) Enter the UE into loopback test mode 2 and start the loopback test.
See TS 34.108 [4] and TS 34.109 [5] and Annex C of TS 34.122 [8] for details regarding generic call setup procedure and loopback test.
Table 7.3.2.4.1-1: Downlink Physical Channels transmitted during a connection
Physical Channel |
Power |
|
Ior |
-75 dBm |
– |
DwPCH |
DwPCH_Ec / Ior |
0 dB |
PCCPCH |
∑P-CCPCH_Ec / Ior |
-3 dB |
SCCPCH |
∑S-CCPCH_Ec / Ior |
-6 dB |
PICH |
∑PICH_Ec / Ior |
-6 dB |
FPACH |
FPACH_Ec / Ior |
-6 dB |
DL DPCH |
∑DPCH_Ec / Ior |
0 dB |
7.3.2.4.2 Procedure
1) Send continuously Up power control commands to the UE.
2) As the UE reaches maximum power, start sending PN15 data pattern.
3) Measure EIS from one measurement point. EIS is the power transmitted from one specific direction to the UE causing BER value of 1% ± 0.2% using 40000 or more bits; see Annex E.20. The DL power step size shall be no bigger than 0.5dB when the RF level is near the TDD UE sensitivity level.
NOTE 1: To meet BER value target DL power level can be changed using user’s freely selectable algorithm.
4) Measure the EIS for every direction of selected sampling gird using two orthogonal polarizations to obtain TRS.
5) Calculate TRS using equations from Subclause 7.3.2.1.
NOTE 2: To speed up sensitivity measurements non standard setting (i.e. data speed, PCL, BER target) can be used in the measurements. However to obtain TRS result the measured EIS figures shall be normalized by
Where is sensitivity measurement done with standard setting, is sensitivity measurement done with non standard settings. is amount of reference measurement points.
To ensure accuracy of TRS, the amount of reference points measured should be at least 4. It is recommended to spread the reference measurements equally during the measurement time.
The measurement procedure is based on the measurement of the spherical sensitivity pattern of the DUT. The sensitivity values of the DUT at a predefined BER level are sampled in far field in a group of points located on a spherical surface enclosing the DUT. The EIS samples are taken using a constant sample step of 30° both in theta (q) and phi (f) directions. All the EIS samples are taken with two orthogonal polarizations, – and -polarisations (See Subclause 4.4).
The Total Radiated Sensitivity is calculated from the measured data by equation in Subclause 7.3.2.2.
7.3.2.4.3 Procedure, reverberation chamber method
1) Send continuously Up power control commands to the UE.
2) As the UE reaches maximum power, start sending PN15 data pattern.
3) Set the base station simulator to a specific output power and perform a BER measurement.
4) Increase or decrease the base station output power as needed, and repeat step 4 until the lowest output power is found that gives a BER value of 1% 0.2% using 20000 or more bits, see Annex E.20. This corresponds to .
NOTE 1: To meet BER value target DL power level can be changed using user’s freely selectable algorithm.
5) Repeat step 3 and 4 until a sufficient number of independent samples (see section 4.5) of has been measured.
6)
7) Calculate TRS using equations from chapter 7.3.2.1.
NOTE 2: The measurement procedure is based on samples of the received signal power at the UE/MS from a full 3 dimensional isotropic environment with uniform elevation and azimuth field distribution. The power received by the DUT is undergoing Rayleigh fading and is transmitted by the fixed measurement antennas. Moreover, it is important that the samples collected are independent, in order to get sufficient accuracy of the estimated TRS value.
The Total Radiated Sensitivity is calculated from the measured data by equation in Subclause 7.3.2.2.
…
7.3.2.5 Test requirements
The average TRS of low, mid and high channel for 1% BER with 12.2kbps DL reference channel as defined in Annex C.3 of TS 34.122 [8] shall be lower than test requirements for roaming bands shown in Table 7.3.2.5-1 for notebook devices and Table 7.3.2.5-2 for tablet devices. The averaging shall be done in linear scale for the TRS results.
In addition the maximum TRS of each measured channel shall be better than minimum performance requirements for roaming bands shown in the columns “Max”.
Table 7.3.2.5-1: TRS test requirements for UTRA LCR TDD roaming mode for notebook devices in the data transfers position and the primary mechanical mode
Operating Band |
Unit |
<REFÎor> |
|
Average |
Max |
||
a |
dBm/1.28 MHz |
TBD +TT |
TBD +TT |
b |
dBm/1.28 MHz |
TBD +TT |
TBD +TT |
c |
dBm/1.28 MHz |
TBD +TT |
TBD +TT |
d |
dBm/1.28 MHz |
TBD +TT |
TBD +TT |
e |
dBm/1.28 MHz |
TBD +TT |
TBD +TT |
f |
dBm/1.28 MHz |
TBD +TT |
TBD +TT |
NOTE 1: Applicable for dual-mode GSM/UTRA LCR TDD. NOTE 2: Applicable for notebook devices. |
NOTE 1: If the above Test Requirement differs from the Minimum Requirement then the Test Tolerance applied for this test is non-zero. The Test Tolerance for this test is defined and the explanation of how the Minimum Requirement has been relaxed by the Test Tolerance is given in Annex D.
Table 7.3.2.5-2: TRS test requirements for UTRA LCR TDD roaming mode for tablet devices in the data transfers position and the primary mechanical mode
Operating Band |
Unit |
<REFÎor> |
|
Average |
Max |
||
a |
dBm/1.28 MHz |
TBD +TT |
TBD +TT |
b |
dBm/1.28 MHz |
TBD +TT |
TBD +TT |
c |
dBm/1.28 MHz |
TBD +TT |
TBD +TT |
d |
dBm/1.28 MHz |
TBD +TT |
TBD +TT |
e |
dBm/1.28 MHz |
TBD +TT |
TBD +TT |
f |
dBm/1.28 MHz |
TBD +TT |
TBD +TT |
NOTE 1: Applicable for dual-mode GSM/UTRA LCR TDD. NOTE 2: Applicable for notebook devices. |
NOTE 2: If the above Test Requirement differs from the Minimum Requirement then the Test Tolerance applied for this test is non-zero. The Test Tolerance for this test is defined and the explanation of how the Minimum Requirement has been relaxed by the Test Tolerance is given in Annex D.
7.3.3 Total Radiated Sensitivity (TRS) for E-UTRA FDD LEE
Editor’s notes: This subclause is incomplete. The following items are missing or incomplete:
- Table 7.3.3.2-1 and 7.3.3.5-1 as they are not specified in TS 37.144 yet
- Applicability
7.3.3.1 Definition and applicability
The Total Radiated Sensitivity is defined as:
Where the effective isotropic sensitivity (EIS) is defined as the power available at the antenna output such as the sensitivity threshold is achieved for each polarization. is the solid angle describing the direction, is frequency. and are the orthogonal polarizations.
In these formulas and are the number of sampling intervals for theta and phi. and are the measurement angles. The sampling intervals are discussed further in Subclause 4.4.
The TRS can also be calculated from measurements in a Rayleigh fading 3 dimensional isotropic environment with in average uniform elevation and azimuth distribution. The calculation of the TRS is in this case based on searching for the lowest power received by the UE/MS for a discrete number of field combinations in the chamber that gives a BER that is better than the specified target BER level. By calibrating the average power transfer function, an absolute value of the TRS can be obtained. The following expression can be used to find the TRS.
where is the reference power transfer function for fixed measurement antenna n, is the reflection coefficient for fixed measurement antenna n and is the path loss in the cables connecting the measurement receiver to fixed measurement antenna n. These parameters are calculated from the calibration measurement and are further discussed in Annex B.2. is calculated by using the following equation:
where is the m:th value of the transfer function for fixed measurement antenna n, which gives the BER threshold. is the total number of values of the BER threshold power measured for each fixed measurement antenna.
[Applicability is TBD]
7.3.3.2 Minimum Requirements
The average measured total radiated sensitivity (TRS) of low, mid and high channel for handheld UE shall be lower than the average TRS requirement specified in Table 7.3.3.2-1 for notebook devices and in Table 7.3.3.2-2 for tablet devices. The averaging shall be done in linear scale for the TRS results of both right and left side of the phantom head. Average TRS requirement is shown in the column “Average” on the requirement tables.
In addition the highest TRS of each measured channel shall be lower than maximum TRS requirement specified in Table 7.3.3.2-1 for notebook devices and in Table 7.3.3.2-2 for tablet devices. Maximum TRS requirement is shown in the column “Max” on the requirement tables.
Table 7.3.3.2-1: TRS minimum performance requirement for E-UTRA FDD roaming mode for notebook devices in the data transfers position and the primary mechanical mode
TBD
LEE TRS minimum performance requirements for E-UTRA FDD in data transfer position mode for throughput ≥ 95% of the maximum throughput of the reference measurement channels as specified in section 7.3 of [11] and Annex A of [11] are defined in Table 7.3.3.2-2 for Tablet devices.
Table 7.3.3.2-2: TRS minimum performance requirement for E-UTRA FDD roaming mode for tablet devices in the data transfers position and the primary mechanical mode
Operating band |
Channel bandwidth |
Sensitivity (dBm) |
|
Average |
Max |
||
1 |
10 MHz |
-93.75 |
-92.25 |
2 |
10 MHz |
||
3 |
10 MHz |
-95.0 |
-93.5 |
4 |
10 MHz |
||
5 |
10 MHz |
||
7 |
10 MHz |
-93.5 |
-92.0 |
8 |
10 MHz |
||
12 |
10 MHz |
||
13 |
10 MHz |
||
19 |
10 MHz |
-91.5 |
-89.5 |
20 |
10 MHz |
-92.5 |
-90.5 |
21 |
15 MHz |
-90.0 |
-88.5 |
28 |
10 MHz |
||
32 |
10 MHz |
||
NOTE 1: Applicable for multi-mode GSM/UMTS/LTE. NOTE 2: Applicability for devices supporting CDMA or aggregated carriers (e.g. multi-carrier HSPA, LTE Carrier Aggregation) is FFS. |
The normative reference for this clause is TS 37.144 [12] Subclause 7.3.4.
7.3.3.3 Test purpose
The purpose of this test is to ensure that and of the UE is above specified limit. The lack of the reception sensitivity decreases the coverage area at the far side from Node B.
7.3.3.4 Method of test
7.3.3.4.1 Initial conditions
A radio communications tester or a corresponding device is used as a NB simulator to setup calls to the DUT. The NB simulator is also used to send test signals to the UE and measure the BER levels of the radio link and the information on the dedicated channel needed to extract the DUT receiver performances.
Chamber environment constraints and coordinate system shall be the same as described in Subclause A.3.
Phantom Specifications shall be the same as described in Subclause A.2.4. Parameters required for Notebooks are specified in Annex A.2.4.2 and those for Tablets are specified in Annex A.2.4.3.
Test environment: normal; see TS36.508 [10] Subclause 4.1.1.
Frequencies to be tested: low range, mid range, high range; see Table 5.3-2.
Positioning Requirements shall be the same as described in Subclause 4.3.
1) Position the UE according to the DUT positioning for devices with embedded modules specified in Subclause 4.3.5.
2) Power on the UE.
3) Set the initial conditions as per Subclause 7.3 of 3GPP TS 36.521-1 [11], with the following exception: set the carrier frequency, channel bandwidth, RB length and RB location as per Table 5.3-2 for FDD mode. For DUTs with more than one receiver port, all the tests should be performed using both (all) antenna ports simultaneously.
7.3.3.4.2 Procedure
1) Follow Steps 1 through 4 in Subclause 7.3.4.2 of 3GPP TS 36.521-1 [11], with the following exception: measure the receiver sensitivity by adjusting the downlink signal level to 95 % throughput of the maximum throughput of the reference channel (maximum throughput is per Annex A of 3GPP TS 36.521-1 [11]).
2) For the anechoic chamber based methodologies, repeat Step 1) with 3-D sampling grid specified in Subclause 4.4. The minimum RF power level resulting in a data throughput greater than or equal to 95 % throughput of the maximum throughput for each test shall be recorded for integration pursuant to Subclause 7.3.3.1 to calculate TRS.
3) Repeat the measurement of the DUT for low, mid and high channels.
4) Calculate the average and minimum TRS as per Subclause 7.3.3.2.
7.3.3.4.3 Procedure, reverberation chamber method
1) Follow Steps 1 through 4 in Subclause 7.3.4.2 of 3GPP TS 36.521-1 [11], with the following exception: measure the receiver sensitivity by adjusting the downlink signal level to 95 % throughput of the maximum throughput of the reference channel (maximum throughput is per Annex A of 3GPP TS 36.521-1 [11]).
2) Repeat Step 1) until a sufficient number of independent samples (see section 4.5) of has been measured. The minimum RF power level resulting in a data throughput greater than or equal to 95 % throughput of the maximum throughput for each sample shall be recorded for calculating the TRS according to Subclause 7.3.3.1.
3) Repeat the measurement of the DUT for low, mid and high channels.
4) Calculate the average and minimum TRS as per Subclause 7.3.3.2.
7.3.3.5 Test requirements
The average measured total radiated sensitivity (TRS) of low, mid and high channel for handheld UE shall be lower than the average TRS requirement specified in Table 7.3.3.5-1 for notebook devices and in Table 7.3.3.5-2 for tablet devices. The averaging shall be done in linear scale for the TRS results of both right and left side of the phantom head. Average TRS requirement is shown in the column “Average” on the requirement tables.
In addition the highest TRS of each measured channel shall be lower than maximum TRS requirement specified in Table 7.3.3.5-1 for notebook devices and in Table 7.3.3.5-2 for tablet devices. Maximum TRS requirement is shown in the column “Max” on the requirement tables.
Table 7.3.3.5-1: TRS minimum requirement for E-UTRA FDD roaming mode for notebook devices in the data transfers position and the primary mechanical mode
TBD
Table 7.3.3.5-2: TRS minimum requirement for E-UTRA FDD roaming mode for tablet devices in the data transfers position and the primary mechanical mode
Operating band |
Channel bandwidth |
Sensitivity (dBm) |
|
Average |
Max |
||
1 |
10 MHz |
-92.85 |
-91.05 |
2 |
10 MHz |
||
3 |
10 MHz |
-94.1 |
-92.3 |
4 |
10 MHz |
||
5 |
10 MHz |
||
7 |
10 MHz |
-92.6 |
-90.8 |
8 |
10 MHz |
||
12 |
10 MHz |
||
13 |
10 MHz |
||
19 |
10 MHz |
-90.6 |
-88.3 |
20 |
10 MHz |
-91.6 |
-89.3 |
21 |
15 MHz |
-89.1 |
-87.3 |
28 |
10 MHz |
||
32 |
10 MHz |
||
NOTE 1: Applicable for multi-mode GSM/UMTS/LTE. NOTE 2: Applicability for devices supporting CDMA or aggregated carriers (e.g. multi-carrier HSPA, LTE Carrier Aggregation) is FFS. |
7.3.4 Total Radiated Sensitivity (TRS) for E-UTRA TDD LEE
Editor’s notes: This subclause is incomplete. The following items are missing or incomplete:
- Table 7.3.4.2-1 and 7.3.4.5-1 as they are not specified in TS 37.144 yet
- Applicability
7.3.4.1 Definition and applicability
The Total Radiated Sensitivity is defined as:
Where the effective isotropic sensitivity (EIS) is defined as the power available at the antenna output such as the sensitivity threshold is achieved for each polarization. is the solid angle describing the direction, is frequency. and are the orthogonal polarizations.
In these formulas and are the number of sampling intervals for theta and phi. and are the measurement angles. The sampling intervals are discussed further in Subclause 4.4.
The TRS can also be calculated from measurements in a Rayleigh fading 3 dimensional isotropic environment with in average uniform elevation and azimuth distribution. The calculation of the TRS is in this case based on searching for the lowest power received by the UE/MS for a discrete number of field combinations in the chamber that gives a BER that is better than the specified target BER level. By calibrating the average power transfer function, an absolute value of the TRS can be obtained. The following expression can be used to find the TRS.
where is the reference power transfer function for fixed measurement antenna n, is the reflection coefficient for fixed measurement antenna n and is the path loss in the cables connecting the measurement receiver to fixed measurement antenna n. These parameters are calculated from the calibration measurement and are further discussed in Annex B.2. is calculated by using the following equation:
where is the m:th value of the transfer function for fixed measurement antenna n, which gives the BER threshold. is the total number of values of the BER threshold power measured for each fixed measurement antenna.
[Applicability is TBD]
7.3.4.2 Minimum Requirements
The average measured total radiated sensitivity (TRS) of low, mid and high channel for handheld UE shall be lower than the average TRS requirement specified in Table 7.3.4.2-1 for notebook devices and in Table 7.3.4.2-2 for tablet devices. The averaging shall be done in linear scale for the TRS results of both right and left side of the phantom head. Average TRS requirement is shown in the column “Average” on the requirement tables.
In addition the highest TRS of each measured channel shall be lower than maximum TRS requirement specified in Table 7.3.4.2-1 for notebook devices and in Table 7.3.4.2-2 for tablet devices. Maximum TRS requirement is shown in the column “Max” on the requirement tables.
Table 7.3.4.2-1: TRS minimum performance requirement for E-UTRA TDD roaming mode for notebook devices in the data transfers position and the primary mechanical mode
TBD
Table 7.3.4.2-2: TRS minimum performance requirement for E-UTRA TDD roaming mode for tablet devices in the data transfers position and the primary mechanical mode
TBD
The normative reference for this clause is TS 37.144 [12] Subclause 7.3.5.
7.3.4.3 Test purpose
The purpose of this test is to ensure that and of the UE is above specified limit. The lack of the reception sensitivity decreases the coverage area at the far side from Node B.
7.3.5.4 Method of test
7.3.4.4.1 Initial conditions
A radio communications tester or a corresponding device is used as a NB simulator to setup calls to the DUT. The NB simulator is also used to send test signals to the UE and measure the BER levels of the radio link and the information on the dedicated channel needed to extract the DUT receiver performances.
Chamber environment constraints and coordinate system shall be the same as described in Subclause A.3.
Phantom Specifications shall be the same as described in Subclause A.2.4. Parameters required for Notebooks are specified in Annex A.2.4.2 and those for Tablets are specified in Annex A.2.4.3.
Test environment: normal; see TS36.508 [10] Subclause 4.1.1.
Frequencies to be tested: low range, mid range, high range; see Table 5.4-2.
Positioning Requirements shall be the same as described in Subclause 4.3.
1) Position the UE according to the DUT positioning for devices with embedded modules specified in Subclause 4.3.5.
2) Power on the UE.
3) Set the initial conditions as per Subclause 7.3 of 3GPP TS 36.521-1 [11], with the following exception: set the carrier frequency, channel bandwidth, RB length and RB location as per Table 5.5-2 for TDD mode. For DUTs with more than one receiver port, all the tests should be performed using both (all) antenna ports simultaneously.
7.3.4.4.2 Procedure
1) Follow Steps 1 through 4 in Subclause 7.3.4.2 of 3GPP TS 36.521-1 [11], with the following exception: measure the receiver sensitivity by adjusting the downlink signal level to 95 % throughput of the maximum throughput of the reference channel (maximum throughput is per Annex A of 3GPP TS 36.521-1 [11]).
2) For the anechoic chamber based methodologies, repeat Step 1) with 3-D sampling grid specified in Subclause 4.4. The minimum RF power level resulting in a data throughput greater than or equal to 95 % throughput of the maximum throughput for each test shall be recorded for integration pursuant to Subclause 7.3.4.1 to calculate TRS.
3) Repeat the measurement of the DUT for low, mid and high channels.
4) Calculate the average and minimum TRS as per Subclause 7.3.4.2.
7.3.4.4.3 Procedure, reverberation chamber method
1) Follow Steps 1 through 4 in Subclause 7.3.4.2 of 3GPP TS 36.521-1 [11], with the following exception: measure the receiver sensitivity by adjusting the downlink signal level to 95 % throughput of the maximum throughput of the reference channel (maximum throughput is per Annex A of 3GPP TS 36.521-1 [11]).
2) Repeat Step 1) until a sufficient number of independent samples (see section 4.5) of has been measured. The minimum RF power level resulting in a data throughput greater than or equal to 95 % throughput of the maximum throughput for each sample shall be recorded for calculating the TRS according to Subclause 7.3.4.1.
3) Repeat the measurement of the DUT for low, mid and high channels.
4) Calculate the average and minimum TRS as per Subclause 7.3.4.2.
7.3.4.5 Test requirements
The average measured total radiated sensitivity (TRS) of low, mid and high channel for handheld UE shall be lower than the average TRS requirement specified in Table 7.3.4.5-1 for notebook devices and in Table 7.3.4.5-2 for tablet devices. The averaging shall be done in linear scale for the TRS results of both right and left side of the phantom head. Average TRS requirement is shown in the column “Average” on the requirement tables.
In addition the highest TRS of each measured channel shall be lower than maximum TRS requirement specified in Table 7.3.4.5-1 for notebook devices and in Table 7.3.4.5-2 for tablet devices. Maximum TRS requirement is shown in the column “Max” on the requirement tables.
Table 7.3.4.5-1: TRS minimum requirement for E-UTRA TDD roaming mode for notebook devices in the data transfers position and the primary mechanical mode
TBD
Table 7.3.4.5-2: TRS minimum requirement for E-UTRA TDD roaming mode for tablet devices in the data transfers position and the primary mechanical mode
TBD