6.3.3 Transmit ON/OFF time mask
38.101-23GPPNRPart 2: Range 2 StandaloneRelease 17TSUser Equipment (UE) radio transmission and reception
6.3.3.1 General
The transmit ON/OFF time mask defines the transient period(s) allowed
– between transmit OFF power and transmit ON power symbols (transmit ON/OFF)
– between continuous ON-power transmissions when power change or RB hopping is applied.
In case of RB hopping, transition period is shared symmetrically.
Unless otherwise stated the minimum requirements in clause 6.5 apply also in transient periods.
The transmit ON/OFF time mask is defined as a directional requirement. The requirement is verified in beam locked mode at beam peak direction. The maximum allowed EIRP OFF power level is -30dBm at beam peak direction. The requirement is verified with the test metric of EIRP (Link=TX beam peak direction, Meas=Link angle).
In the following sub-clauses, following definitions apply:
– A slot transmission is a Type A transmission.
– A long subslot transmission is a Type B transmission with more than 2 symbols.
– A short subslot transmission is a Type B transmission with 1 or 2 symbols.
6.3.3.2 General ON/OFF time mask
The general ON/OFF time mask defines the observation period allowed between transmit OFF and ON power. ON/OFF scenarios include: contiguous, and non-contiguous transmission, etc
The OFF power measurement period is defined in a duration of at least one slot excluding any transient periods. The ON power is defined as the mean power over one slot excluding any transient period.
Figure 6.3.3.2-1: General ON/OFF time mask for NR UL transmission in FR2
6.3.3.3 Transmit power time mask for slot and short or long subslot boundaries
The transmit power time mask for slot and a long subslot transmission boundaries defines the transient periods allowed between slot and long subslot PUSCH transmissions. For PUSCH-PUCCH and PUSCH-SRS transitions and multiplexing the time masks in sub-clause 6.3.3.7 apply.
The transmit power time mask for slot or long subslot and short subslot transmission boundaries defines the transient periods allowed between slot or long subslot and short subslot transmissions. The time masks in sub-clause 6.3.3.8 apply.
The transmit power time mask for short subslot transmissiona boundaries defines the transient periods allowed between short subslot transmissions. The time masks in sub-clause 6.3.3.9 apply.
6.3.3.4 PRACH time mask
The PRACH ON power is specified as the mean power over the PRACH measurement period excluding any transient periods as shown in Figure 6.3.3.4-1. The measurement period for different PRACH preamble format is specified in Table 6.3.3.4-1.
Table 6.3.3.4-1: PRACH ON power measurement period
|
Format |
SCS |
Measurement period |
|
A1 |
60 kHz |
0.035677 ms |
|
120 kHz |
0.017839 ms |
|
|
A2 |
60 kHz |
0.071354 ms |
|
120 kHz |
0.035677 ms |
|
|
A3 |
60 kHz |
0.107031 ms |
|
120 kHz |
0.053516 ms |
|
|
B1 |
60 kHz |
0.035091 ms |
|
120 kHz |
0.0175455 ms |
|
|
B4 |
60 kHz |
0.207617 ms |
|
120 kHz |
0.103809 ms |
|
|
A1/B1 |
60 kHz |
0.035677 ms for front X1 occasion X1 = [2,5] |
|
120 kHz |
0.017839 ms for front X1occasion X1 = [2,5] |
|
|
A2/B2 |
60 kHz |
0.071354 ms for front X2 occasion X2 = [1,2] |
|
120 kHz |
0.035677 ms for front X2 occasion X2 = [1,2] |
|
|
A3/B3 |
60 kHz |
0.107031 ms for first occasion |
|
120 kHz |
0.053515 ms for first occasion |
|
|
C0 |
60 kHz |
0.026758 ms |
|
120 kHz |
0.013379 ms |
|
|
C2 |
60 kHz |
0.083333 ms |
|
120 kHz |
0.0416667 ms |
|
|
NOTE: For PRACH on PRACH occasion start from begin of 0ms or 0.5 ms boundary, the measurement period will plus 0.032552 μs |
||
Figure 6.3.3.4-1: PRACH ON/OFF time mask
6.3.3.5 Void
6.3.3.6 SRS time mask
In the case a single SRS transmission, the ON power is defined as the mean power over the symbol duration excluding any transient period; Figure 6.3.3.6-1.
Figure 6.3.3.6-1: Single SRS time mask for NR UL transmission
In the case multiple consecutive SRS transmission, the ON power is defined as the mean power for each symbol duration excluding any transient period. See Figure 7.7.4-2
Figure 6.3.3.6-2: Consecutive SRS time mask for the case when no power change is required
When power change between consecutive SRS transmissions is required, then Figure 6.3.3.6-3 and Figure 6.3.3.6-4 apply.
Figure 6.3.3.6-3: Consecutive SRS time mask for the case when power change is required and when 60kHz SCS is used in FR2
Figure 6.3.3.6-4: Consecutive SRS time mask for the case when power change is required and when 120kHz SCS is used in FR2
6.3.3.7 PUSCH-PUCCH and PUSCH-SRS time masks
The PUCCH/PUSCH/SRS time mask defines the observation period between sounding reference symbol (SRS) and an adjacent PUSCH/PUCCH symbol and subsequent UL transmissions. The time masks apply for all types of frame structures and their allowed PUCCH/PUSCH/SRS transmissions unless otherwise stated.
Figure 6.3.3.7-1: PUCCH/PUSCH/SRS time mask when there is a transmission before or after or both before and after SRS
When there is no transmission preceding SRS transmission or succeeding SRS transmission, then the same time mask applies as shown in Figure 6.3.3.7-1.
6.3.3.8 Transmit power time mask for consecutive slot or long subslot transmission and short subslot transmission boundaries
The transmit power time mask for consecutive slot or long subslot transmission and short subslot transmission boundaries defines the transient periods allowed between such transmissions.
Figure 6.3.3.8-1: Consecutive slot or long subslot transmission and short subslot transmission time mask
6.3.3.9 Transmit power time mask for consecutive short subslot transmissions boundaries
The transmit power time mask for consecutive short subslot transmission boundaries defines the transient periods allowed between short subslot transmissions.
The transient period shall be equally shared as shown on Figure 6.3.3.9-2.
Figure 6.3.3.9-1: Void
Figure 6.3.3.9-2: Consecutive short subslot transmissions time mask where DMRS is not the first symbol in the adjacent short subslot transmission
Figure 6.3.3.9-3: Consecutive short subslot (1 symbol gap) time mask for the case when transient period is required on both sides of the symbol and when 120 kHz SCS is used in FR2