Section: 6.2.5G Configured transmitted power for V2X Communication
Content: When UE is configured for E-UTRA V2X sidelink transmissions non-concurrent with E-UTRA uplink transmissions for E-UTRA V2X operating bands specified in Table 5.5G-1, the V2X UE is allowed to set its configured maximum output power PCMAX,c for component carrier c. The configured maximum output power PCMAX,c is set within the following bounds: PCMAX_L,c ≤ PCMAX,c ≤ PCMAX_H,c with PCMAX_L,c = MIN {PEMAX,c – TC,c, PPowerClass –– MAX(MPRc + A-MPRc + ΔTIB,c + TC,c + TProSe, P-MPRc), PRegulatory,c } PCMAX_H,c = MIN {PEMAX,c, PPowerClass, PRegulatory,c } where - For the total transmitted power PCMAX,c of PSSCH and PSCCH, PEMAX,c is the value given by IE maxTxPower, defined by [7], when the UE is not associated with a serving cell on the V2X carrier. - For, PEMAX,c is the value given by the IE maxTxPower in [7] when the UE is not associated with a serving cell on the V2X carrier. - For, the value is as calculated for and applying the MPR for SSSS as specified in Section 6.2.3D. - PPowerClass is the maximum UE power specified in Table 6.2.2-1 without taking into account the tolerance specified in the Table 6.2.2-1; - MPRc and A-MPRc for serving cell c are specified in subclause 6.2.3G and subclause 6.2.4G, respectively; - TIB,c, TC,c, TProSe and P-MPRc are specified in subclause 6.2.5 - PRegulatory,c= 10 - Gpost connector dBm when the V2X UE is within the protected zone [13] of CEN DSRC tolling system and operating in Band 47; PRegulatory,c= 33 - Gpost connector dBm otherwise. The maximum output power PCMAX,PSSCH and PCMAX,PSCCH are derived from PCMAX,c based on the PSD offset following subclause 14.1.1.5 in [6]. For all cases, the PSD difference between PSCCH and PSSCH shall be the same as the PSD offset value. For the measured configured maximum output power PUMAX,c for E-UTRA V2X sidelink transmissions non-concurrent with E-UTRA uplink transmissions, the same requirement as in subclause 6.2.5 shall be applied. When a UE is configured for simultaneous E-UTRA V2X sidelink and E-UTRA uplink transmissions for inter-band E-UTRA V2X / E-UTRA bands specified in Table 5.5G-2, the UE is allowed to set its configured maximum output power PCMAX,c,E-UTRA and PCMAX,c,V2X for the configured E-UTRA uplink carrier and the configured E-UTRA V2X carrier, respectively, and its total configured maximum output power PCMAX,c. The TIB,c of PCMAX,c,E-UTRA is specified in Table 6.2.5G-1. The configured maximum output power PCMAX c,E-UTRA(p) in subframe p for the configured E-UTRA uplink carrier shall be set within the bounds: PCMAX_L,c,E-UTRA (p) ≤ PCMAX,c,E-UTRA (p) ≤ PCMAX_H,c,E-UTRA (p) where PCMAX_L,c,E-UTRA and PCMAX_H,c,E-UTRA are the limits for a serving cell c as specified in subclause 6.2.5. The configured maximum output power PCMAX c,V2X (q) in subframe q for the configured E-UTRA V2X carrier shall be set within the bounds: PCMAX,c,V2X (q) ≤ PCMAX_H,c,V2X (q) where PCMAX_H,c,V2X is the limit as specified in subclause 6.2.5G. The total UE configured maximum output power PCMAX (p,q) in a subframe p of an E-UTRA uplink carrier and a subframe q of an E-UTRA V2X sidelink 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) = PCMAX_L,c,E-UTRA (p) PCMAX_H (p,q) = 10 log10 [pCMAX_H,c,E-UTRA (p) + pCMAX_H,c,V2X (q)] where pCMAX_H,c,V2X and pCMAX_H,c,E-UTRA are the limits PCMAX_H,c,V2X (q) and PCMAX_H,c,E-UTRA (p) expressed in linear scale. The measured total maximum output power PUMAX over both the E-UTRA uplink and E-UTRA V2X carriers is PUMAX = 10 log10 [pUMAX,c,E-UTRA + pUMAX,c,V2X], where pUMAX,c,E-UTRA denotes the measured output power of serving cell c for the configured E-UTRA uplink carrier, and pUMAX,c,V2X denotes the measured output power for the configured E-UTRA V2X carrier expressed in linear scale. When a UE is configured for synchronous V2X sidelink and uplink 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 6.2.5G-2. PCMAX_L may be modified for any overlapping portion of subframes (p, q) and (p +1, q+1). When a UE is configured for asynchronous V2X and uplink transmissions, the subframe p for the E-UTRA uplink carrier and subframe q for the E-UTRA V2X carrier overlap in time and 1. if uplink carrier leads in time over q and V2X UE sidelink transmission has SCI whose “Priority” field is set to a value less than the high layer parameter thresSL-TxPrioritization, then p is the reference subframe and the (p,q) and (p,q-1) pairs are considered for determining the PCMAX tolerance 2. if uplink carrier leads in time over q and V2X UE sidelink transmission has SCI whose “Priority” field is set to a value larger than the high layer parameter thresSL-TxPrioritization, then q is the reference subframe and the (p,q) and (p+1,q) pairs are considered for determining the PCMAX tolerance 3. if V2X carrier leads in time over p and V2X UE sidelink transmission has SCI whose “Priority” field is set to a value less than the high layer parameter thresSL-TxPrioritization, then p is the reference subframe and the (p,q) and (p,q+1) pairs are considered for determining the PCMAX tolerance 4. if V2X carrier leads in time over p and V2X UE sidelink transmission has SCI whose “Priority” field is set to a value larger than the high layer parameter thresSL-TxPrioritization,, 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 uplink carrier leads: P'CMAX_L = PCMAX_L,,cE-UTRA (p) P'CMAX_H = MAX {PCMAX_H (p,q-1) , PCMAX_H (p,q)} For the reference subframe p duration when V2X carrier leads: P'CMAX_L = PCMAX_L,c,E-UTRA (p) P'CMAX_H = MAX {PCMAX_H (p,q) , PCMAX_H (p,q+1)} For the reference subframe q duration when uplink carrier leads: P'CMAX_L = PCMAX_L,c, E-UTRA (q) P'CMAX_H = MAX {PCMAX_H (p,q) , PCMAX_H (p+1,q)} For the reference subframe q duration when V2X carrier leads: P'CMAX_L = PCMAX_L,c, E-UTRA (p) P'CMAX_H = MAX {PCMAX_H (p-1,q) , PCMAX_H (p,q)} where PCMAX_L,,cE-UTRA (p) and PCMAX_H are the applicable limits for each overlapping subframe pairs above 4case with (p,q), (p, q-1) or (p,q), (p, q+1) or (p,q), (p+1,q) or (p,q), (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 6.2.5G-2. For intra-band contiguous multi-carrier operation, MPRc = MPR and A-MPRc = A-MPR with MPR and A-MPR specified in subclause 6.2.3G and subclause 6.2.4G respectively. There is one power management term for the UE, denoted P-MPR, and P-MPR c = P-MPR. PCMAX,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 PCMAX shall be set within the following bounds: PCMAX_L ≤ PCMAX ≤ PCMAX_H PCMAX_L = MIN{10 log10 ∑ pEMAX,c - TC , PPowerClass – MAX(MPR + A-MPR + ΔTIB,c + TC + TProSe, P-MPR ), PRegulatory } PCMAX_H = MIN{10 log10 ∑ pEMAX,c , PPowerClass, PRegulatory } where - pEMAX,c is the linear value of PEMAX,c which is given by IE maxTxPower in [7]; - PPowerClass is the maximum UE power specified in Table 6.2.2G-1 without taking into account the tolerance specified in the Table 6.2.2G-1; - MPR and A-MPR are specified in subclause 6.2.3G and subclause 6.2.4G respectively; - TIB,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; - TC is the highest value TC,c among all serving cells c in the subframe over both timeslots. TC,c = 1.5 dB when NOTE 2 in Table 6.2.2-1 applies, otherwise TC,c = 0 dB; - TProSe applies as specified in subclause 6.2.5. - PRegulatory= 10 - Gpost connector dBm when V2X UE is within the protected zone [13] of CEN DSRC tolling system and operating in Band 47; PRegulatory= 33 - Gpost connector dBm otherwise. NOTE: The supported post antenna connector gain Gpost connector declared by the UE following the principle described in annex I. Table 6.2.5G-1: ΔTIB,c for inter-band con-current V2X operation (two bands) For V2X UE supporting Transmit Diversity, the transmitted power is configured per each UE. If the UE transmits on two antenna connectors at the same time, the tolerance is specified in Table 6.2.5G-2 and 6.2.5G-3 for PC2 and PC3 V2X UE respectively. Table 6.2.5G-2: PCMAX,c tolerance in Transmit Diversity scheme for PC2 V2X UE Table 6.2.5G-3: PCMAX,c tolerance in Transmit Diversity scheme for PC3 V2X UE If the UE transmits on one antenna connector at a time, the requirements in Table 6.2.5-1 apply to the active antenna connector.