6.3.3 Transmit ON/OFF time mask
38.101-13GPPNRPart 1: Range 1 StandaloneRelease 17TSUser Equipment (UE) radio transmission and reception
6.3.3.1 General
The transmit power time mask defines the transient period(s) allowed
– between transmit OFF power as defined in clause 6.3.2 and transmit ON power symbols (transmit ON/OFF)
– between continuous ON-power transmissions with power change or RB hopping is applied. When a UE signals the transient period capability, the transient period value (tp) can be 2, 4, or 7μs. If no capability is signalled, the default transient period value of 10μs applies.
In case of RB hopping, and in following figures where tpstart is specified, the transient period is shared symmetrically when the transient period is 10usec. If the UE signals a transient period (tp) of 2, 4 or 7μs, the transient period start position is given by tpstart in Table 6.3.3.1-1.
Table 6.3.3.1-1 tpstart values
|
tp (μs) |
tpstart (μs) |
|---|---|
|
2 |
-0.5 |
|
4 |
-1 |
|
7 |
-2.7 |
|
NOTE 1: Negative values mean that the transient period starts before the symbol boundary |
|
Unless otherwise stated the requirements in clause 6.5 apply also in transient periods.
In the following clauses, following definitions apply:
– A slot or long subslot transmission is a transmission with more than 2 symbols.
– A short subslot transmission is a 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 between transmit OFF and ON power and between transmit ON and OFF power for each SCS. 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 FR1
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 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 clause 6.3.3.8 apply.
The transmit power time mask for short subslot transmission boundaries defines the transient periods allowed between short subslot transmissions. The time masks in 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
|
PRACH preamble format |
SCS (kHz) |
Measurement period (ms) |
|
0 |
1.25 |
0.903125 |
|
1 |
1.25 |
2.284375 |
|
2 |
1.25 |
3.352604 |
|
3 |
5 |
0.903125 |
|
A1 |
15 |
0.142708 |
|
30 |
0.071354 |
|
|
A2 |
15 |
0.285417 |
|
30 |
0.142708 |
|
|
A3 |
15 |
0.428125 |
|
30 |
0.2140625 |
|
|
B1 |
15 |
0.140365 |
|
30 |
0.070182 |
|
|
B4 |
15 |
0.83046875 |
|
30 |
0.415234375 |
|
|
A1/B1 |
15 |
0.142708 ms for first six occasion |
|
30 |
0.071354 ms for first six occasion |
|
|
A2/B2 |
15 |
0.285417 ms for first two occasion |
|
30 |
0.142708 ms for first two occasion |
|
|
A3/B3 |
15 |
0.428125 ms for the first occasion |
|
30 |
0.2140625 ms for the first occasion |
|
|
C0 |
15 |
0.10703125 |
|
30 |
0.053515625 |
|
|
C2 |
15 |
0.333333 |
|
30 |
0.166667 |
|
|
NOTE: For PRACH on PRACH occasion start from the beginning of 0.5 ms or span the boundary of 0.5 ms of the subframe, 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
For SRS transmission mapped to one OFDM symbol, the ON power is defined as the mean power over the symbol duration excluding any transient period; See Figure 6.3.3.6-1
Figure 6.3.3.6-1: Single SRS time mask for NR UL transmission
For SRS transmission mapped to two or more OFDM symbols the ON power is defined as the mean power for each symbol duration excluding any transient period. For consecutive SRS transmissions without power change, Figure 6.3.3.6-2 applies.
Figure 6.3.3.6-2: Consecutive SRS time mask for the case when no power change is required with SRS usage other than antenna switching.
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 15 kHz and 30 kHz SCS is used in FR1 with SRS usage other than antenna switching.
Figure 6.3.3.6-4: Consecutive SRS time mask for the case when power change is required and when 60 kHz SCS is used in FR1, when the transient period is 10 µs
Figure 6.3.3.6-5: FR1 Time mask for 15 kHz and 30 kHz SCS for the case when consecutive SRS switching usage is between antenna switching & other sets
where "other sets" belongs to a "usage set" other than the set for antenna switching. The usage sets for SRS switching are defined in clause 6.2.1 of TS 38.214 [10].
NOTE: Guard period of one symbol is defined between two SRS resources of an SRS resource set for antenna switching for 15kHz, 30kHz and 60kHz SCS in Table 6.2.1.2-1 of TS 38.214 [10].
The above transient period applies to all the transmit CCs in CA with the CC sounding SRS. UE RF requirements do not apply during this transient period.
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 sounded on the same antenna (Ant ‘x’)
Figure 6.3.3.7-2: PUCCH/PUSCH/SRS time mask when there is a transmission before or after or both before and after SRS, when sounded on a different antenna (Ant ‘x’ and Ant ‘y’ are different antenna ports)
Figure 6.3.3.7-3: Consecutive long subslot transmission and long subslot transmission time mask
This transient period of 15 µsec applies before and after SRS transmission to all the transmit CCs in CA with the CC sounding SRS. UE RF requirements do not apply during this transient period.
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 slot 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
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 60 kHz SCS is used in FR1, where the transient period is 10 µs