7 Conducted receiver characteristics
38.1083GPPNRRelease 17Satellite Access Node radio transmission and receptionTS
7.1 General
Conducted receiver characteristics are specified at the TAB connector for SAN type 1-H, with full complement of transceivers for the configuration in normal operating condition.
Unless otherwise stated, the following arrangements apply for conducted receiver characteristics requirements in clause 7:
– Requirements shall be met for any transmitter setting.
– The requirements shall be met with the transmitter unit(s) ON.
– Throughput requirements do not assume HARQ retransmissions.
– When SAN is configured to receive multiple carriers, all the throughput requirements are applicable for each received carrier.
– For ACS, blocking and intermodulation characteristics, the negative offsets of the interfering signal apply relative to the lower SAN RF Bandwidth edge or sub-block edge inside a sub-block gap, and the positive offsets of the interfering signal apply relative to the upper SAN RF Bandwidth edge or sub-block edge inside a sub-block gap.
NOTE: In normal operating condition the SAN is configured to transmit and receive at the same time.
7.2 Reference sensitivity level
7.2.1 General
The reference sensitivity power level PREFSENS is the minimum mean power received at the TAB connector for SAN type 1-H at which a throughput requirement shall be met for a specified reference measurement channel.
7.2.2 Minimum requirements for SAN type 1-H
The throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel as specified in annex A.1 with parameters specified in table 7.2.2-1 and 7.2.2-2 for SAN type 1-H in all operating band in FR1.
Table 7.2.2-1: SAN GEO class reference sensitivity levels
|
SAN channel bandwidth (MHz) |
Sub-carrier spacing (kHz) |
Reference measurement channel (NOTE) |
Reference sensitivity power level, PREFSENS (dBm) |
|
5, 10, 15 |
15 |
G-FR1-A1-1 |
-99.3 |
|
10, 15 |
30 |
G-FR1-A1-2 |
-99.4 |
|
10, 15 |
60 |
G-FR1-A1-3 |
-96.5 |
|
20 |
15 |
G-FR1-A1-4 |
-92.9 |
|
20 |
30 |
G-FR1-A1-5 |
-93.2 |
|
20 |
60 |
G-FR1-A1-6 |
-93.3 |
|
NOTE: PREFSENS is the power level of a single instance of the reference measurement channel. This requirement shall be met for each consecutive application of a single instance of the reference measurement channel mapped to disjoint frequency ranges with a width corresponding to the number of resource blocks of the reference measurement channel each, except for one instance that might overlap one other instance to cover the full SAN channel bandwidth. |
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Table 7.2.2-2: SAN LEO class reference sensitivity levels
|
SAN channel bandwidth (MHz) |
Sub-carrier spacing (kHz) |
Reference measurement channel (NOTE) |
Reference sensitivity power level, PREFSENS (dBm) |
|
5, 10, 15 |
15 |
G-FR1-A1-1 |
-102.4 |
|
10, 15 |
30 |
G-FR1-A1-2 |
-102.5 |
|
10, 15 |
60 |
G-FR1-A1-3 |
-99.6 |
|
20 |
15 |
G-FR1-A1-4 |
-96.0 |
|
20 |
30 |
G-FR1-A1-5 |
-96.3 |
|
20 |
60 |
G-FR1-A1-6 |
-96.4 |
|
NOTE: PREFSENS is the power level of a single instance of the reference measurement channel. This requirement shall be met for each consecutive application of a single instance of the reference measurement channel mapped to disjoint frequency ranges with a width corresponding to the number of resource blocks of the reference measurement channel each, except for one instance that might overlap one other instance to cover the full SAN channel bandwidth. |
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7.3 Dynamic range
7.3.1 General
The dynamic range is specified as a measure of the capability of the receiver to receive a wanted signal in the presence of an interfering signal at the TAB connector for SAN type 1-H inside the received SAN channel bandwidth. In this condition, a throughput requirement shall be met for a specified reference measurement channel. The interfering signal for the dynamic range requirement is an AWGN signal.
7.3.2 Minimum requirements for SAN type 1-H
The throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel as specified in annex A.2 with parameters specified in table 7.3.2-1 for LEO.
Table 7.3.2-1: SAN LEO class dynamic range
|
SAN channel bandwidth (MHz) |
Subcarrier spacing (kHz) |
Reference measurement channel |
Wanted signal mean power (dBm) |
Interfering signal mean power (dBm) / BWConfig |
Type of interfering signal |
|
5 |
15 |
G-FR1-A2-1 |
-76.4 |
-88.2 |
AWGN |
|
30 |
G-FR1-A2-2 |
-77.1 |
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|
10 |
15 |
G-FR1-A2-1 |
-76.4 |
-85.0 |
AWGN |
|
30 |
G-FR1-A2-2 |
-77.1 |
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|
60 |
G-FR1-A2-3 |
-74.1 |
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|
15 |
15 |
G-FR1-A2-1 |
-76.4 |
-83.2 |
AWGN |
|
30 |
G-FR1-A2-2 |
-77.1 |
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|
60 |
G-FR1-A2-3 |
-74.1 |
|||
|
20 |
15 |
G-FR1-A2-4 |
-70.2 |
-81.9 |
AWGN |
|
30 |
G-FR1-A2-5 |
-70.2 |
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|
60 |
G-FR1-A2-6 |
-70.5 |
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|
NOTE: The wanted signal mean power is the power level of a single instance of the corresponding reference measurement channel. This requirement shall be met for each consecutive application of a single instance of the reference measurement channel mapped to disjoint frequency ranges with a width corresponding to the number of resource blocks of the reference measurement channel each, except for one instance that might overlap one other instance to cover the full SAN channel bandwidth. |
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7.4 In-band selectivity and blocking
7.4.1 Adjacent Channel Selectivity (ACS)
7.4.1.1 General
Adjacent channel selectivity (ACS) is a measure of the receiver’s ability to receive a wanted signal at its assigned channel frequency at TAB connector for SAN type 1-H in the presence of an adjacent channel signal with a specified center frequency offset of the interfering signal to the band edge of a victim system.
7.4.1.2 Minimum requirements for SAN type 1-H
The throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel.
For SAN, the wanted and the interfering signal coupled to the SAN type 1-H TAB connector are specified in table 7.4.1.2-1 and the frequency offset between the wanted and interfering signal in table 7.4.1.2-2 for ACS. The reference measurement channel for the wanted signal is identified in table 7.2.2-1 and 7.2.2-2 for each SAN channel bandwidth in any operating band and further specified in annex A.1. The characteristics of the interfering signal is further specified in annex C.
The ACS requirement is applicable outside the SAN RF Bandwidth or Radio Bandwidth. The interfering signal offset is defined relative to the SAN RF Bandwidth edges or Radio Bandwidth edges.
Minimum conducted requirement is defined at the TAB connector for SAN type 1-H.
Table 7.4.1.2-1: Satellite Access Node ACS requirement
|
SAN channel bandwidth of the lowest/highest carrier received (MHz) |
Wanted signal mean power (dBm) |
Interfering signal mean power (dBm) |
|
5, 10, 15, 20 |
PREFSENS + 6 dB (NOTE 2) |
SAN GEO class: -57 SAN LEO class: -60 |
|
NOTE 1: The SCS for the lowest/highest carrier received is the lowest SCS supported by the SAN for that bandwidth. NOTE 2: PREFSENS depends on the SAN channel bandwidth as specified in table 7.2.2-1 and 7.2.2-2. |
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Table 7.4.1.2-2: Satellite Access Node ACS interferer frequency offset values
|
SAN channel bandwidth of the lowest/highest carrier received (MHz) |
Interfering signal center frequency offset from the lower/upper SAN RF Bandwidth edge (MHz) |
Type of interfering signal |
|
5 |
±2.5025 |
|
|
10 |
±2.5075 |
5 MHz CP-OFDM NR signal |
|
15 |
±2.5125 |
15 kHz SCS, 25 RBs |
|
20 |
±2.5025 |
7.4.2 In-band blocking
The requirement is not applicable in this version of the specification.
7.5 Out-of-band blocking
7.5.1 General
The out-of-band blocking characteristics is a measure of the receiver ability to receive a wanted signal at its assigned channel at the TAB connector for SAN type 1-H in the presence of an unwanted interferer out of the operating band, which is a CW signal for out-of-band blocking.
7.5.2 Minimum requirements for SAN type 1-H
The throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel, with a wanted and an interfering signal coupled to SAN type 1-H TAB connector using the parameters in table 7.5.2-1.
The reference measurement channel for the wanted signal is identified in clause 7.2.2 for each SAN channel bandwidth and further specified in annex A.1.
The out-of-band blocking requirement apply from 1 MHz to FUL,low – ΔfOOB and from FUL,high + ΔfOOB up to 12750 MHz, including the downlink frequency range of the FDD operating band for SAN. The ΔfOOB for SAN type 1-H is defined in table 7.5.2-2.
Minimum conducted requirement is defined at the antenna connector at the TAB connector for SAN type 1-H.
Table 7.5.2-1: Out-of-band blocking requirement for NR
|
Wanted signal mean power (dBm) |
Interfering signal mean power (dBm) |
Type of interfering signal |
|
PREFSENS +6 dB |
-44 |
CW carrier |
|
NOTE: For SAN, PREFSENS depends on the SAN channel bandwidth. |
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Table 7.5.2-2: ΔfOOB offset for NR operating bands
|
SAN type |
Operating band characteristics |
ΔfOOB (MHz) |
|
SAN type 1-H |
FUL,high – FUL,low < 100 MHz |
20 |
7.6 Receiver spurious emissions
The requirement is not applicable in this version of the specification. TAB connectors shall always support both TX and RX.
7.6.1 Void
7.6.2 Void
7.7 Receiver intermodulation
The requirement is not applicable in this version of the specification.
7.8 In-channel selectivity
7.8.1 General
In-channel selectivity (ICS) is a measure of the receiver ability to receive a wanted signal at its assigned resource block locations at TAB connector for SAN type 1-H in the presence of an interfering signal received at a larger power spectral density. In this condition a throughput requirement shall be met for a specified reference measurement channel. The interfering signal shall be an NR signal which is time aligned with the wanted signal.
7.8.2 Minimum requirements for SAN type 1-H
For SAN type 1-H, the throughput shall be ≥ 95% of the maximum throughput of the reference measurement channel as specified in annex A.1 with parameters specified in table 7.8.2-1 for GEO SAN, in table 7.8.2-2 for LEO SAN. The characteristics of the interfering signal is further specified in annex C.
Table 7.8.2-1: SAN GEO class ICS requirement
|
SAN channel bandwidth (MHz) |
Subcarrier spacing (kHz) |
Reference measurement channel |
Wanted signal mean power (dBm) |
Interfering signal mean power (dBm) |
Type of interfering signal |
|
5 |
15 |
G-FR1-A1-7 |
-98.2 |
-92.0 |
DFT-s-OFDM NR signal, 15 kHz SCS, 10 RBs |
|
10,15,20 |
15 |
G-FR1-A1-1 |
-96.3 |
-88.1 |
DFT-s-OFDM NR signal, 15 kHz SCS, 25 RBs |
|
5 |
30 |
G-FR1-A1-8 |
-98.9 |
-92.0 |
DFT-s-OFDM NR signal, 30 kHz SCS, 5 RBs |
|
10,15,20 |
30 |
G-FR1-A1-2 |
-96.4 |
-89.0 |
DFT-s-OFDM NR signal, 30 kHz SCS, 10 RBs |
|
10,15,20 |
60 |
G-FR1-A1-9 |
-95.8 |
-89.0 |
DFT-s-OFDM NR signal, 60 kHz SCS, 5 RBs |
|
NOTE: Wanted and interfering signal are placed adjacently around Fc, where the Fc is defined for SAN channel bandwidth of the wanted signal according to the table 5.4.2.2-1. The aggregated wanted and interferer signal shall be centred in the SAN channel bandwidth of the wanted signal. |
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Table 7.8.2-2: SAN LEO class ICS requirement
|
SAN channel bandwidth (MHz) |
Subcarrier spacing (kHz) |
Reference measurement channel |
Wanted signal mean power (dBm) |
Interfering signal mean power (dBm) |
Type of interfering signal |
|
5 |
15 |
G-FR1-A1-7 |
-101.3 |
-83.1 |
DFT-s-OFDM NR signal, 15 kHz SCS, 10 RBs |
|
10,15,20 |
15 |
G-FR1-A1-1 |
-99.4 |
-79.2 |
DFT-s-OFDM NR signal, 15 kHz SCS, 25 RBs |
|
5 |
30 |
G-FR1-A1-8 |
-102.0 |
-83.1 |
DFT-s-OFDM NR signal, 30 kHz SCS, 5 RBs |
|
10,15,20 |
30 |
G-FR1-A1-2 |
-99.5 |
-80.1 |
DFT-s-OFDM NR signal, 30 kHz SCS, 10 RBs |
|
10,15,20 |
60 |
G-FR1-A1-9 |
-98.9 |
-80.1 |
DFT-s-OFDM NR signal, 60 kHz SCS, 5 RBs |
|
NOTE: Wanted and interfering signal are placed adjacently around Fc, where the Fc is defined for SAN channel bandwidth of the wanted signal according to the table 5.4.2.2-1. The aggregated wanted and interferer signal shall be centred in the SAN channel bandwidth of the wanted signal. |
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