6.2.5A Configured transmitted power for CA

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

For uplink carrier aggregation the UE is allowed to set its configured maximum output power P_CMAX,c for serving cell c and its total configured maximum output power P_CMAX.

The configured maximum output power P_CMAX,c on serving cell c shall be set as specified in subclause 6.2.5.

For uplink inter-band carrier aggregation, MPR_c and A-MPR_c apply per serving cell c and are specified in subclause 6.2.3 and subclause 6.2.4, respectively. P-MPR _c accounts for power management for serving cell c. P_CMAX,c is calculated under the assumption that the transmit power is increased independently on all component carriers.

For uplink intra-band contiguous and non-contiguous carrier aggregation, MPR_c = MPR and A-MPR_c = A-MPR with MPR and A-MPR specified in subclause 6.2.3A and subclause 6.2.4A respectively. There is one power management term for the UE, denoted P-MPR, and P-MPR _c = P-MPR. P_CMAX,c is calculated under the assumption that the transmit power is increased by the same amount in dB on all component carriers.

The total configured maximum output power P_CMAX shall be set within the following bounds:

P_{CMAX_L} ≤ P_CMAX ≤ P_{CMAX_H}

For uplink inter-band carrier aggregation with one serving cell c per operating band when same TTI pattern is used in all aggregated serving cells,

P_{CMAX_L} = MIN {10log₁₀∑ MIN [ p_EMAX,c/ (t_C,c), p_PowerClass/(mpr_c·a-mpr_c·t_C,c ·t_IB,c·t_ProSe) , p_PowerClass/pmpr_c], P_PowerClass}

P_{CMAX_H} = MIN{10 log₁₀ ∑ p_EMAX,c , P_PowerClass}

where

– p_EMAX,c is the linear value of P_{EMAX, c} which is given by IE P-Max for serving cell c in [7];

– P_PowerClass is the maximum UE power specified in Table 6.2.2A-1 without taking into account the tolerance specified in the Table 6.2.2A-1; p_PowerClass is the linear value of P_PowerClass;

– mpr _c and a-mpr _c are the linear values of MPR _c and A-MPR _c as specified in subclause 6.2.3 and subclause 6.2.4, respectively;

– pmpr_c is the linear value of P-MPR _c;

– t_C,c is the linear value of T_C,ct_C,c = 1.41 when NOTE 2 in Table 6.2.2-1 applies for a serving cell c, otherwise t_C,c = 1;

– t_IB,c is the linear value of the inter-band relaxation term T_IB,c of the serving cell c as specified in Table 6.2.5-2; otherwise t_IB,c

– t_ProSe is the linear value of T_ProSe and applies as specified in subclause 6.2.5.

For uplink intra-band contiguous and non-contiguous carrier aggregation when same TTI pattern is used in all aggregated serving cells,

P_{CMAX_L} = MIN{10 log₁₀ ∑ p_EMAX,c – T_C , (P_PowerClass – ΔP_PowerClass) – MAX(MPR + A-MPR + ΔT_IB,c + T_C + T_ProSe, P-MPR ) }

P_{CMAX_H} = MIN{10 log₁₀ ∑ p_EMAX,c , P_PowerClass}

where

– p_EMAX,c is the linear value of P_EMAX,c which is given by IE P-Max for serving cell c in [7];

– P_PowerClass is the maximum UE power specified in Table 6.2.2A-1 without taking into account the tolerance specified in the Table 6.2.2A-1;

ΔP_PowerClass = 3 dB for a power class 2 capable UE operating in Band 41, when P-max of 23 dBm or lower is indicated or if the uplink/downlink configuration is 0 or 6 in the cell; otherwise, ΔP_PowerClass = 0 dB

– MPR and A-MPR are specified in subclause 6.2.3A and subclause 6.2.4A respectively;

– T_IB,c is the additional tolerance for serving cell c as specified in Table 6.2.5-2;

– P-MPR is the power management term for the UE;

– T_C is the highest value T_C,c among all serving cells c in the T_REF over all T_eval durations. T_C,c = 1.5 dB when NOTE 2 in Table 6.2.2A-1 applies to the serving cell c, otherwise T_C,c = 0 dB;

– T_ProSe applies as specified in subclause 6.2.5.

For uplink inter-band carrier aggregation with one serving cell c per operating band when at least one different TTI patterns is used in aggregated cells, the UE is allowed to set its configured maximum output power P_CMAX,c(i),i for serving cell c(i) of TTI length i, i = 1,2,3 and its total configured maximum output power P_CMAX.

The configured maximum output power P_CMAX,c(i),i (p) in TTI p of serving cell c(i) on TTI length i shall be set within the following bounds:

P_{CMAX_L,c(i),i} (p) ≤ P_{CMAX,c(i), i} (p) ≤ P_{CMAX_H,c(i),i} (p)

where P_{CMAX_L,c(i),i} (p) and P_{CMAX_H,c(i),i} (p) are the limits for a serving cell c(i) of TTI length i as specified in subclause 6.2.5.

The total UE configured maximum output power P_CMAX (p,q,k) in a TTI p of TTI length 1 , a TTI q of TTI length 2 and a TTI k of TTI length 3 that overlap in time shall be set within the following bounds unless stated otherwise:

P_{CMAX_L}(p,q,k) ≤ P_CMAX (p,q,k) ≤ P_{CMAX_H} (p,q,k)

When p, q, k are of different lengths and belong to different cells:

P_{CMAX_L} (p,q,k) = MIN {10 log₁₀ [p_{CMAX_L,c(1),1} (p) + p_{CMAX_L,c(2),2} (q)+ + p_{CMAX_L,c(3),3} (k)], P_PowerClass}

P_{CMAX_H} (p,q,k) = MIN {10 log₁₀ [p_{CMAX_H,c(1),1} (p) + p_{CMAX_H,c(2),2} (q) + p_{CMAX_H,c(3),3} (k)], P_PowerClass}

where p_{CMAX_L,c(i),i} and p_{CMAX_H,c(i),i} are the respective limits P_{CMAX_L,c(i),i}and P_{CMAX_H,c(i),i} expressed in linear scale.

For combinations of intra-band and inter-band carrier aggregation with UE configured for transmission on three serving cells (up to two contiguously aggregated carriers per operating band),

For the case when p and q belong to the same band and k belongs to a different band but p, q and k are of the same TTI pattern.

P_{CMAX_L} = MIN {10log₁₀∑(p_{CMAX_L, Bi}), P_PowerClass}

P_{CMAX_H} = MIN{10 log₁₀ ∑ p_EMAX,c , P_PowerClass}

For the case when p and q belong to the same band and are of the same TTI pattern while k belong to a different band and is of different TTI pattern then:

P_{CMAX_L} (p,q,k) = MIN {10 log₁₀ [p_{CMAX_L,Bi}(p) + p_{CMAX_L,c(3),3} (k)], P_PowerClass}

P_{CMAX_H} (p,q,k) = MIN {10 log₁₀ [p_{CMAX_H,Bi} (p) + p_{CMAX_H,c(3),3} (k)], P_PowerClass}

where

– p_EMAX,c is the linear value of P_{EMAX, c} which is given by IE P-Max for serving cell c in [7];

– P_PowerClass is the maximum UE power specified in Table 6.2.2A-0 without taking into account the tolerance specified in the Table 6.2.2A-0; p_PowerClass is the linear value of P_PowerClass;

– p_{CMAX_L, Bi} is the linear values of P_{CMAX_L} as specified in corresponding operating band. P_{CMAX_L,c} specified for single carrier in subclause 6.2.5 applies for operating band supporting one serving cell. P_{CMAX_L} specified for uplink intra-band contiguous carrier aggregation in subclause 6.2.5A applies for operating band supporting two contiguous serving cells.

– intra-band carriers use the same TTI patterns.

T_REF and T_eval are specified in Table 6.2.5A-0 when same and different TTI patterns are used in aggregated carriers. For each T_REF, the P_{CMAX_L} is evaluated per T_eval and given by the minimum value taken over the transmission(s) within the T_eval; the minimum P_{CMAX_L} over the one or more T_eval is then applied for the entire T_REF. P_PowerClass shall not be exceeded by the UE during any period of time.

Table 6.2.5A-0: P_CMAX evaluation window for different TTI patterns

TTI duration	TREF	Teval
Different TTI duration in different aggregated carrier	TREF of longer TTI	Teval of shortest TTI

If the UE is configured with multiple TAGs and transmissions of the UE on TTI i for any serving cell in one TAG overlap some portion of the first symbol of the transmission on TTI i +1 for a different serving cell in another TAG, the UE minimum of P_{CMAX_L} for TTIs i and i + 1 applies for any overlapping portion of TTIs i and i + 1. P_PowerClass shall not be exceeded by the UE during any period of time.

In case PC2 and uplink intra-band contiguous CA capable UE receives p_EMAX,c in Scell then that applies both to Scell and Pcell once the Scell is activated.

The measured maximum output power P_UMAX over all serving cells with same TTI pattern shall be within the following range:

P_{CMAX_L} – MAX{T_L, T_LOW(P_{CMAX_L}) } ≤ P_UMAX ≤ P_{CMAX_H} + T_HIGH(P_{CMAX_H})

P_UMAX = 10 log₁₀ ∑ p_UMAX,c

where p_UMAX,c denotes the measured maximum output power for serving cell c expressed in linear scale. The tolerances T_LOW(P_CMAX) and T_HIGH(P_CMAX) for applicable values of P_CMAX are specified in Table 6.2.5A-1 and Table 6.2.5A-2 for inter-band carrier aggregation and intra-band carrier aggregation, respectively. The tolerance T_L is the absolute value of the lower tolerance for applicable E-UTRA CA configuration as specified in Table 6.2.2A-0, Table 6.2.2A-1 and Table 6.2.2A-2 for inter-band carrier aggregation, intra-band contiguous carrier aggregation and intra-band non-contiguous carrier aggregation, respectively.

The measured maximum output power P_UMAX over all serving cells, when atleast one TTI has a different TTI pattern, shall be within the following range:

P’_{CMAX_L}– MAX{T_L, T_LOW (P’_{CMAX_L})} ≤ P’_UMAX ≤ P’_{CMAX_H} + T_HIGH (P’_{CMAX_H})

P’_UMAX = 10 log₁₀ ∑ p’_UMAX,c

where p’_UMAX,c denotes the average measured maximum output power for serving cell c expressed in linear scale over T_REF. The tolerances T_LOW(P’_CMAX) and T_HIGH(P’_CMAX) for applicable values of P’_CMAX are specified in Table 6.2.5A-1 and Table 6.2.5A-2 for inter-band carrier aggregation and intra-band carrier aggregation, respectively. The tolerance T_L is the absolute value of the lower tolerance for applicable E-UTRA CA configuration as specified in Table 6.2.2A-0, Table 6.2.2A-1 and Table 6.2.2A-2 for inter-band carrier aggregation, intra-band contiguous carrier aggregation and intra-band non-contiguous carrier aggregation, respectively.

where:

P’_{CMAX_L} = MIN{ MIN {10log₁₀∑(p_{CMAX_L, Bi}), P_PowerClass} over all overlapping TTIs in T_REF}

P’_{CMAX_H} = MAX{ MIN{10 log₁₀ ∑ p_EMAX,c , P_PowerClass} over all overlapping TTIs in T_REF}

Table 6.2.5A-1: P_CMAX tolerance for uplink inter-band CA (two bands)

PCMAX (dBm)	Tolerance TLOW(PCMAX) (dB)	Tolerance THIGH(PCMAX) (dB)
PCMAX = 23	3.0	2.0
22 ≤ PCMAX < 23	5.0	2.0
21 ≤ PCMAX < 22	5.0	3.0
20 ≤ PCMAX < 21	6.0	4.0
16 ≤ PCMAX < 20	5.0
11 ≤ PCMAc < 16	6.0
-40 ≤ PCMAX < 11	7.0

Table 6.2.5A-2: P_CMAX tolerance for uplink intra-band CA

PCMAX (dBm)	Tolerance TLOW(PCMAX) (dB)	Tolerance THIGH(PCMAX) (dB)
21 ≤ PCMAX ≤ 26	2.0
20 ≤ PCMAX < 21	2.5
19 ≤ PCMAX < 20	3.5
18 ≤ PCMAX < 19	4.0
13 ≤ PCMAX < 18	5.0
8 ≤ PCMAX < 13	6.0
-40 ≤ PCMAX < 8	7.0