6.3.4 ON/OFF time mask

36.1013GPPEvolved Universal Terrestrial Radio Access (E-UTRA)Release 18TSUser Equipment (UE) radio transmission and reception

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

6.3.4.1 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. ON/OFF scenarios include; the beginning or end of DTX, measurement gap, contiguous, and non contiguous transmission

The OFF power measurement period is defined in a duration of at least one subframe, or one slot or one subslot for sTTI, excluding any transient periods. The ON power is defined as the mean power over one subframe, or one slot or one subslot for sTTI, excluding any transient period.

There are no additional requirements on UE transmit power beyond that which is required in subclause 6.2.2 and subclause 6.6.2.3

The transient period length shall be no longer than the specified value in Table 6.3.4.1-1.

Table 6.3.4.1-1: Transient period length depending on transmission length

TTI pattern	Channel BW (MHz)	TTI Duration	Transient period length (µs)
Subframe TTI		1ms	20
Slot TTI	1.4	1 slot	20
Slot TTI	> 1.4	1 slot	10
Subslot TTI	1.4	2os or 3 os	20
Subslot TTI	> 1.4	2os or 3 os	10

Figure 6.3.4.1-1: General ON/OFF time mask for subframe TTI and for Frame Structure Type 1 and Frame Structure Type 2

For Frame Structure Type 3 the general ON/OFF mask is specified in 6.3.4.1-1A with the PUSCH starting position modified by relative to the start of the sub-frame as indicated in the associated DCI, where and the basic time unit are specified in [4]. At the end of the sub-frame and with denoting the duration of the last SC-FDMA symbol when the bit indicating the PUSCH ending symbol in the associated DCI has value ‘0’ and ‘1’ as specified in [5], respectively; the OFF power requirement applies 5 s after the end of the last symbol transmitted.

Figure 6.3.4.1-1A: General ON/OFF time mask for subframe TTI and for Frame Structure Type 3

Figure 6.3.4.1-1B: General ON/OFF time mask for sTTI and for Frame Structure Type 1 and Frame Structure Type 2

6.3.4.2 PRACH and SRS time mask

6.3.4.2.1 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 6.3.4.2-1. The measurement period for different PRACH preamble format is specified in Table 6.3.4.2-1.

There are no additional requirements on UE transmit power beyond that which is required in subclause 6.2.2 and subclause 6.6.2.3

Table 6.3.4.2-1: PRACH ON power measurement period

PRACH preamble format	Measurement period (ms)
0	0.9031
1	1.4844
2	1.8031
3	2.2844
4	0.1479

Figure 6.3.4.2-1: PRACH ON/OFF time mask

6.3.4.2.2 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 6.3.4.2.2-1 and Figure 6.3.4.2.2-1A.

In the case a dual SRS transmission, the ON power is defined as the mean power for each symbol duration excluding any transient period. Figure 6.3.4.2.2-2

There are no additional requirements on UE transmit power beyond that which is required in subclause 6.2.2 and subclause 6.6.2.3

Figure 6.3.4.2.2-1: Single SRS time mask for Frame Structure Type 1 and Frame Structure Type 2

For Frame Structure Type 3 and single SRS transmission, the SRS time mask is specified in 6.3.4.2-2A; the OFF power requirement applies [5] s after the end of the SRS symbol.

Figure 6.3.4.2.2-1A: Single SRS time mask for Frame Structure Type 3

Figure 6.3.4.2.2-2: Dual SRS time mask for the case of UpPTS transmissions

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 6.3.4.2.2-3 applies.

SRS

End of OFF power

requirement

Start of OFF power requirement

SRS ON power requirement on consecutive symbols

20µs

Transient period

SRS

20µs

Transient period

Figure 6.3.4.2.2-3: Consecutive SRS time mask for the case when no power change is required

When power change between consecutive SRS transmissions is required, then Figure 6.3.4.2.2-4 and Figure 6.3.4.2.2-5 apply.

SRS

SRS ON power requirement

SRS

20µs

SRS

End of OFF power

requirement

Start of OFF power requirement

SRS ON power requirement

20µs

Transient period

20µs

Transient period

20µs

Transient period

20µs

Transient period

20µs

Transient period

Figure 6.3.4.2.2-4: Consecutive SRS time mask for the case when power change is required

SRS

Ant. ‘x’

SRS

Ant. ‘x’

SRS

Ant. ‘x’

SRS

Ant. ‘x’

SRS

Ant. ‘x’

SRS

Ant. ‘x’

SRS ON power requirement

20µs

End of OFF power

requirement

Start of OFF power requirement

SRS ON power requirement

20µs

Transient period

20µs

Transient period

20µs

Transient period

20µs

Transient period

20µs

Transient period

SRS

Ant. ‘x’

SRS

Ant. ‘y’

SRS

Ant. ‘x’

SRS

Ant. ‘x’

Figure 6.3.4.2.2-5: Time mask for SRS antenna switching

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.

6.3.4.3 Slot / Sub frame boundary time mask for subframe TTI

The sub frame boundary time mask defines the observation period between the previous/subsequent sub–frame and the (reference) sub-frame. A transient period at a slot boundary within a sub-frame is only allowed in the case of Intra-sub frame frequency hopping. For the cases when the subframe contains SRS the time masks in subclause 6.3.4.4 apply.

There are no additional requirements on UE transmit power beyond that which is required in subclause 6.2.2 and subclause 6.6.2.3

Figure 6.3.4.3-1: Transmission power template for Frame Structure Type 1 and Frame Structure Type 2

For Frame Structure Type 3 the sub-frame boundary time mask is specified in Figure 6.3.4.3-1A when the bit indicating the PUSCH ending symbol in the associated DCI has value ‘1’ and the PUSCH starting position is modified by in the following subframe (clause 6.3.4.1); denotes the duration of the ending SC-FDMA symbol. the OFF power requirement applies 5 s after the end of the last symbol transmitted.

Figure 6.3.4.3-1A: Transmission power template when the bit in the associated DCI indcating the PUSCH ending symbol has value ‘1′ for Frame Structure Type 3

For Frame Structure Type 3 the first slot boundary time mask is specified in Figure 6.3.4.3-1B when the PUSCH mode is 3 indicated in DCI [4]. The PUSCH starting position modified by relative to the start of the sub-frame as indicated in the associated DCI, where and the basic time unit are specified in TS 36.211 [4]. At the end of the first slot or with denoting the duration of one SC-FDMA symbol when the bit indicating the PUSCH ending symbol in the associated DCI is either fourth or seventh symbol as specified in TS 36.212 [5], respectively; the OFF power requirement applies 5 s after the end of the last symbol transmitted.

Figure 6.3.4.3-1B: Transmission power template for the first slot in one subframe for Frame Structure Type 3

For Frame Structure Type 3 the second slot boundary time mask is specified in Figure 6.3.4.3-1C when the PUSCH mode is 2 indicated in DCI [4]. The PUSCH starting position modified by relative to the start of the second slot as indicated in the associated DCI, where and the basic time unit are specified in TS 36.211 [4]. At the end of the second slot or with denoting the duration of one SC-FDMA symbol when the bit indicating the PUSCH ending symbol in the associated DCI is either thirteenth or fourteenth symbol as specified in TS 36.212 [5], respectively; the OFF power requirement applies 5 s after the end of the last symbol transmitted.

For Frame Structure Type 3 the second slot boundary time mask specified in Figure 6.3.4.3-1C can also be applied when the PUSCH mode is 1 indicated in DCI [4] and transmition starts at the eighth symbol. The PUSCH starting position relative to the start of the second slot. At the end of the second slot or with denoting the duration of one SC-FDMA symbol when the bit indicating the PUSCH ending symbol in the associated DCI is either thirteenth or fourteenth symbol as specified in TS 36.212 [5], respectively; the OFF power requirement applies 5 s after the end of the last symbol transmitted.

Figure 6.3.4.3-1C: Transmission power template for the second slot in one subframe for Frame Structure Type 3

6.3.4.4 PUCCH / PUSCH / SRS time mask for subframe TTI

The PUCCH/PUSCH/SRS time mask defines the observation period between sounding reference symbol (SRS) and an adjacent PUSCH/PUCCH symbol and subsequent sub-frame. The time masks apply for all types of frame structures and their allowed PUCCH/PUSCH/SRS transmissions unless otherwise stated.

There are no additional requirements on UE transmit power beyond that which is required in subclause 6.2.2 and subclause 6.6.2.3

Figure 6.3.4.4-1: PUCCH/PUSCH/SRS time mask when there is a transmission before SRS but not after for Frame Structure Type 1 and Frame Structure Type 2

For Frame Structure Type 3 the PUSCH/SRS time mask when there is a transmission before SRS but not after is specified in Figure 6.3.4.4-1A; the OFF power requirement applies 5 s after the end of the last symbol transmitted.

Figure 6.3.4.4-1A: PUSCH/SRS time mask when there is a transmission before SRS but not after for Frame Structure Type 3

Figure 6.3.4.4-2: PUCCH/PUSCH/SRS time mask when there is transmission before and after SRS

Figure 6.3.4.4-3: PUCCH/PUSCH/SRS time mask when there is a transmission after SRS but not before

Figure 6.3.4.4-4: SRS time mask when there is FDD SRS blanking for Frame Structure Type 1 and Frame Structure Type 2

For Frame Structure Type 3 the PUSCH/SRS time mask with transmission after the SRS symbol and the PUSCH starting position modified by in the following subframe (clause 6.3.4.1) is specified in Figure 6.3.4.4-4A when there is SRS blanking.

Figure 6.3.4.4-4A: SRS time mask when there is SRS blanking for Frame Structure Type 3

6.3.4.5 Symbol / Subslot boundary time mask for subslot TTI

The subslot boundary time mask defines the observation period between the previous/subsequent subslot and the (reference) subslot. A transient period at a symbol boundary within a subslot is only allowed in the case of Intra-subslot frequency hopping. For the cases when the subslot contains SRS the time masks in subclause 6.3.4.6 apply.

There are no additional requirements on UE transmit power beyond that which is required in subclause 6.2.2 and subclause 6.6.2.3

Following time masks requirements shall be applied:

– the transient period shall be equally shared between two consecutive Reference symbols or Data symbols (figure 6.3.4.5-1 and figure 6.3.4.5-4).

– Otherwise, the transient period shall be placed in the Reference symbol (figure 6.3.4.5-2 and figure 6.3.4.5-3).

Figure 6.3.4.5-1: Transmission power template for subslot TTI – transient period shared

Figure 6.3.4.5-2: Transmission power template for subslot TTI – transient period not shared

Figure 6.3.4.5-3: Transmission power template for subslot TTI – transient period not shared

Figure 6.3.4.5-4: Transmission power template for subslot TTI – transient period shared

6.3.4.6 Subslot PUCCH / subslot PUSCH / SRS time mask for subslot TTI

The subslot PUCCH/subslot PUSCH/SRS time mask defines the observation period between sounding reference symbol (SRS) in the last symbol in subslot N and an adjacent subslot PUSCH/subslot PUCCH symbol in subslot N+1.

There are no additional requirements on UE transmit power beyond that which is required in subclause 6.2.2 and subclause 6.6.2.3

Following time masks requirement shall be applied when SRS is either transmitted or blanked:

– the transient period shall be placed in Reference symbol when the transient is in between Reference symbol and SRS (figure 6.3.4.6-1, figure 6.3.4.6-2, figure 6.3.4.6-5 and figure 6.3.4.6-7).

– the transient period shall be equally shared when the transien is in between Data symbol and SRS (figure 6.3.4.6-3 and figure 6.3.4.6-4).

Figure 6.3.4.6-1: subslot PUSCH/SRS time mask when there is a Reference symbol before SRS (or SRS blanking) and data symbol after

Figure 6.3.4.6-2:subslot PUSCH/SRS time mask when there is a Reference symbol before SRS (or SRS blanking) and Reference symbol after

Figure 6.3.4.6-3: subslot PUSCH/SRS time mask when there is a data symbol before SRS (or SRS blanking) and data symbol after

Figure 6.3.4.6-4: subslot PUSCH/SRS time mask when there is a data symbol before SRS (or SRS blanking) and Reference symbol after

Figure 6.3.4.6-5: subslot PUSCH/SRS time mask when there is a no symbol before SRS

Figure 6.3.4.6-6: subslot PUSCH/SRS time mask when there is a no symbol after SRS

Figure 6.3.4.6-7: subslot PUSCH/SRS time mask when there is a no symbol before and after SRS

6.3.4.7 Symbol / Slot boundary time mask for slot TTI

The slot boundary time mask defines the observation period between the previous/subsequent slot and the (reference) slot. A transient period at a symbol boundary within a slot is only allowed in the case of Intra slot frequency hopping. For the cases when the slot contains SRS the time masks in subclause 6.3.4.8 shall apply.

There are no additional requirements on UE transmit power beyond that which is required in subclause 6.2.2 and subclause 6.6.2.3

For slot boundary, the time maks specified in subclause 6.3.4.4 shall apply with a transient time of 10µs intead of 20µs.

For frequency hopping within the slot, the time masks specified in subclause 6.3.4.5 shall apply.

6.3.4.8 Slot PUCCH / slot PUSCH / SRS time mask for slot TTI

The slot PUCCH/slot PUSCH/SRS time mask defines the observation period between sounding reference symbol (SRS) and an adjacent slot PUSCH/slot PUCCH symbol and subsequent slot.

There are no additional requirements on UE transmit power beyond that which is required in subclause 6.2.2 and subclause 6.6.2.3

The time masks specified in subclause 6.3.4.4 shall apply.

6.3.4.9 Consecutive subslot and slot TTI or consecutive subslot and subframe TTI time mask

The consecutive subslot and slot boundary time mask or consecutive subslot and subframe boundary time mask defines the observation period between the subslot and the slot or subframe.

There are no additional requirements on UE transmit power beyond that which is required in subclause 6.2.2 and subclause 6.6.2.3.

In this case, the transient period shall be placed in the subframe TTI or the slot TTI (figure 6.3.4.9-1)

Figure 6.3.4.9-1: subslot TTI and subframe TTI boundary

6.3.4.10 Consecutive subframe and subslot TTI or consecutive slot and subslot TTI time mask

The consecutive subframe and subslot boundary time mask or consecutive slot and subslot boundary time mask defines the observation period between the slot or subframe and the subslot.

There are no additional requirements on UE transmit power beyond that which is required in subclause 6.2.2 and subclause 6.6.2.3

Figure 6.3.4.10-1: Subframe TTI and subslot TTI boundary with SRS in last subframe TTI symbol and Reference Symbol in first subslot TTI symbol

Figure 6.3.4.10-2: Subframe TTI and subslot TTI boundary with SRS in last subframe TTI symbol and data Symbol in first subslot TTI symbol

When the last symbol of the Subframe or slot is not SRS then the transient period is placed in the Subframe or Slot.

Figure 6.3.4.10-3: subframe TTI and subslot TTI boundary

6.3.4.11 Consecutive TTI and slot TTI or consecutive slot TTI and TTI time mask

The consecutive subframe and slot boundary time mask or consecutive slot and subframe boundary time mask defines the observation period between the subframe and the slot or the slot and the subframe.

There are no additional requirements on UE transmit power beyond that which is required in subclause 6.2.2 and subclause 6.6.2.3

The time masks at subframe boundary specified in subclause 6.3.4.3 or at slot boundary specified in subclause 6.3.4.7 shall apply.