US 2018/0324708 A1 · POWER CONTROL FRAMEWORK FOR MULTI-BEAM CONFIGURATION

Abstract

A method for determining a Physical Uplink Share Channel (PUSCH) transmission power may comprise measuring reference signal received power, calculating downlink path loss by comparing the reference signal received power to a downlink transmit power from a next generation node B (gNB), obtaining parameters from the gNB, and determining the PUSCH transmission power based on a configured user equipment (UE) transmission power, bandwidth of PUSCH resource assignment, a target power including the sum of a cell specific nominal component and a UE specific component, a scaling factor, a downlink (DL) path loss, a UE specific parameter for different types of traffic, and a PUSCH power control adjustment state. The method may further comprise calculating a numerology adjustment factor based on a configured subcarrier spacing and a default subcarrier spacing, and utilizing the numerology adjustment factor to determine the PUSCH transmission power.

Claims20

Dependent claims

A method for determining a Physical Uplink Share Channel (PUSCH) transmission power, the method implementable by a user equipment (UE), the method comprising:

measuring reference signal received power;
calculating downlink path loss by comparing the reference signal received power to a downlink transmit power from a next generation node B (gNB);
obtaining parameters from the gNB;
and
determining the PUSCH transmission power PPUSCH,c(i,j) for a PUSCH transmission of a serving cell c using parameter set configuration with index j in PUSCH transmission period i, based on a formula as follows:
P
PUSCH
,
c

(
i
,
j
)
=
min

{
P
CMAX
,
c

(
i
)
,
10


log
10

(
M
PUSCH
,
c

(
i
)
)
+
P
O_PUSCH
,
c

(
j
)
+
α
c

(
j
)
·
PL
c
+
Δ
TF
,
c

(
i
)
+
f
c

(
i
)
}
,
wherein PcMAX,c(i) is a configured UE transmission power for the serving cell c in the PUSCH transmission period i, MPUSCH,c(i) is bandwidth of PUSCH resource assignment expressed in number of resource blocks for PUSCH transmission period i, PO_PUSCH,c(j) is a target power including the sum of a cell specific nominal component PO_NOMINAL_PUSCH,c(j) and a UE specific component PO_UE_PUSCH,c(j), αc(j) is a scaling factor, PLc is a downlink (DL) path loss, ΔTF,c(i) is a UE specific parameter for different types of traffic, and fc(i) is PUSCH power control adjustment state for the PUSCH transmission period i.

79 more elements

A user equipment (UE) for determining a Physical Uplink Share Channel (PUSCH) transmission power, the user equipment comprising:

one or more processors;
and
a memory storing instructions that, when executed by the one or more processors, cause the user equipment to perform:
measuring reference signal received power;
calculating downlink path loss by comparing the reference signal received power to a downlink transmit power from a next generation node B (gNB);
obtaining parameters from the gNB;
and
determining the PUSCH transmission power PPUSCH,c(i,j) for a PUSCH transmission of a serving cell c using parameter set configuration with index j in PUSCH transmission period i, based on a formula as follows:
P
PUSCH
,
c

(
i
,
j
)
=
min

{
P
CMAX
,
c

(
i
)
,
10


log
10

(
M
PUSCH
,
c

(
i
)
)
+
P
O_PUSCH
,
c

(
j
)
+
α
c

(
j
)
·
PL
c
+
Δ
TF
,
c

(
i
)
+
f
c

(
i
)
}
,
wherein PcMAX,c(i) is a configured UE transmission power for the serving cell c in the PUSCH transmission period i, MPUSCH,c(i) is bandwidth of PUSCH resource assignment expressed in number of resource blocks for PUSCH transmission period i, PO_PUSCH,c(j) is a target power including the sum of a cell specific nominal component PO_NOMINAL_PUSCH,c(j) and a UE specific component PO_UE_PUSCH,c(j), αc(j) is a scaling factor, PLc is a downlink (DL) path loss, ΔTF,c(i) is a UE specific parameter for different types of traffic, and f(i) is PUSCH power control adjustment state for the PUSCH transmission period i.

82 more elements

Dependencies are inferred from the claim text.

Power control framework for multi-beam configuration

Life of this patent

Power control framework for multi-beam configuration

Life of this patent

Abstract

Claims20