Section: 6.2.5C Configured transmitted power for Dual Connectivity
Content: For inter-band dual connectivity with one uplink serving cell per CG, the UE is allowed to set its configured maximum output power PCMAX,c(i),i for serving cell c(i) of CG i, i = 1,2, and its total configured maximum output power PCMAX. The configured maximum output power PCMAX,c(i),i (p) in subframe p of serving cell c(i) on CG i shall be set within the following bounds: PCMAX_L,c(i),i (p) ≤ PCMAX,c(i), i (p) ≤ PCMAX_H,c(i),i (p) where PCMAX_L,c(i),i (p) and PCMAX_H,c(i),i (p) are the limits for a serving cell c(i) of CG i as specified in subclause 6.2.5. The total UE configured maximum output power PCMAX (p,q) in a subframe p of CG 1 and a subframe q of CG 2 that overlap in time shall be set within the following bounds for synchronous and asynchronous operation unless stated otherwise: PCMAX_L(p,q) ≤ PCMAX (p,q) ≤ PCMAX_H (p,q) with PCMAX_L (p,q) = MIN {10 log10 [pCMAX_L,c(1),1 (p) + pCMAX_L,c(2),2 (q)], PPowerClass} PCMAX_H (p,q) = MIN {10 log10 [pCMAX_H,c(1),1 (p) + pCMAX_H,c(2),2 (q)], PPowerClass} where pCMAX_L,c(i),i is pCMAX_H,c(i),i are the respective limits PCMAX_L,c(i),i (p) and PCMAX_H,c(i),i (p) expressed in linear scale. If the UE is configured in Dual Connectivity and synchronous transmissions of the UE on subframe p for a serving cell in one CG overlaps some portion of the first symbol of the transmission on subframe q +1 for a different serving cell in the other CG, the UE minimum of PCMAX_L between subframes pairs (p, q) and (p+1, q +1) respectively applies for any overlapping portion of subframes (p, q) and (p +1, q+1). PPowerClass shall not be exceeded by the UE during any period of time. The measured total maximum output power PUMAX over both CGs is PUMAX = 10 log10 [pUMAX,c(1),1 + pUMAX,c(2),2], where pUMAX,c(i),i denotes the measured output power of serving cell c(i) of CG i expressed in linear scale. If the UE is configured in Dual Connectivity and synchronous transmissions PCMAX_L(p, q) – TLOW (PCMAX_L(p, q)) ≤ PUMAX ≤ PCMAX_H(p, q) + THIGH (PCMAX_H(p, q)) where PCMAX_L (p,q) and PCMAX_H (p,q) are the limits for the pair (p,q) and with the tolerances TLOW(PCMAX) and THIGH(PCMAX) for applicable values of PCMAX specified in Table 6.2.5C-1. PCMAX_L may be modified for any overlapping portion of subframes (p, q) and (p +1, q+1). If the UE is configured in Dual Connectivity and asynchronous transmissions, the subframes of the leading CG are taken as reference subframes for the measurement of the total configured output power PUMAX. If subframe p of CG 1 and subframe q of CG 2 overlap in time in their respective slot 0 and 1. if p leads in time over q, then p is the reference subframe and the (p,q) and (p,q-1) pairs are considered for determining the PCMAX tolerance 2. if q leads in time over p, then q is the reference subframe and the (p-1,q) and (p,q) pairs are considered for determining the PCMAX tolerance; for the reference subframe p duration (when subframe p in CG 1 leads): P’CMAX_L = MIN {PCMAX_L (p,q) , PCMAX_L (p,q-1)} P’CMAX_H = MAX {PCMAX_H (p,q) , PCMAX_H (p,q-1)} while for the reference subframe q duration (when subframe q in CG 2 leads): P’CMAX_L = MIN {PCMAX_L (p-1,q) , PCMAX_L (p,q)} P’CMAX_H = MAX {PCMAX_H (p-1,q) , PCMAX_H (p,q)} where PCMAX_L and PCMAX_H are the applicable limits for each overlapping subframe pairs (p,q) , (p, q-1) and (p-1,q). The measured total configured maximum output power PUMAX shall be within the following bounds: P’CMAX_L – TLOW (P’CMAX_L) ≤ PUMAX ≤ P’CMAX_H + THIGH (P’CMAX_H) with the tolerances TLOW(PCMAX) and THIGH(PCMAX) for applicable values of PCMAX specified in Table 6.2.5C-1. Table 6.2.5C-1: PCMAX tolerance for inter-band Dual Connectivity