Uplink power control method and mobile terminal
View Patent ↗An uplink power control method and a mobile terminal are provided. The method includes: acquiring an uplink transmission parameter corresponding to an uplink channel format; calculating an uplink power adjustment value according to the uplink transmission parameter, to control an uplink power.
1. An uplink power control method, comprising:
acquiring an uplink transmission parameter corresponding to an uplink channel format; and
calculating an uplink power adjustment value according to the uplink transmission parameter, to control an uplink power,
wherein,
the uplink channel format is a first Physical Uplink Control Channel (PUCCH) format, and the first PUCCH format is a short PUCCH format of 2 bits or less that 2 bits;
the acquiring the uplink transmission parameter corresponding to the uplink channel format comprises: acquiring a quantity of symbols occupied by the first PUCCH format;
the calculating the uplink power adjustment value according to the uplink transmission parameter comprises: calculating the uplink power adjustment value by the following formula:
Δ
PUCCH
_
TF
,
c
(
i
)
=
1
0
log
1
0
(
N
r
e
f
N
symb
PUCCH
)
;
wherein Δ PUCCH_TF,c (i) is the uplink power adjustment value, N symb PUCCH is the quantity of symbols occupied by the first PUCCH format, and N ref is a reference coefficient corresponding to the first PUCCH format;
or,
the uplink channel format is a third PUCCH format or a fourth PUCCH format; wherein the third PUCCH format is a short PUCCH format of more than 2 bits, and the fourth PUCCH format is a long PUCCH format of more than 2 bits;
the acquiring the uplink transmission parameter corresponding to the uplink channel format comprises: acquiring a bit quantity of Uplink Control Information (UCI) corresponding to a PUCCH format and a quantity of Resource Elements (REs) carrying the UCI;
the calculating the uplink power adjustment value according to the uplink transmission parameter comprises: calculating the uplink power adjustment value according to the bit quantity of the UCI and the quantity of the REs.
2. The method according to claim 1 , wherein a value of N ref is a preset value or a value configured by a high-layer signaling.
3. The method according to claim 1 , wherein the calculating the uplink power adjustment value according to the bit quantity of the UCI and the quantity of the REs comprises:
in the case that the bit quantity of the UCI is greater than 2 and less than or equal to 11, calculating the uplink power adjustment value by the following formula:
Δ
PUCCH
_
TF
,
c
(
i
)
=
10
log
10
(
k
*
O
UCI
N
R
E
)
wherein Δ PUCCH_TF,c (i) is the uplink power adjustment value, O UCI is the bit quantity of the UCI, and N RE is the quantity of the REs;
in the case that the PUCCH is in the third PUCCH format, N RE =⅔*N symb PUCCH *M SC PUCCH ;
in the case that the PUCCH is in the fourth PUCCH format, N RE =(N symb PUCCH −N DMRS-symb PUCCH )*M SC PUCCH , N symb PUCCH is the quantity of symbols occupied by the PUCCH, N DMRS-symb PUCCH is a quantity of symbols occupied by the DMRS in the PUCCH, M SC PUCCH is a bandwidth occupied by the PUCCH, and k is a preset value.
4. The method according to claim 3 , wherein the bandwidth occupied by the PUCCH is represented by a quantity of subcarriers, and k is greater than or equal to 3 and less than or equal to 9.
5. A mobile communication terminal, comprising: a memory, a processor, a transceiver and a computer program stored in the memory and executable on the processor, wherein the computer program is executed by the processor to:
acquire an uplink transmission parameter corresponding to an uplink channel format; and
calculate an uplink power adjustment value according to the uplink transmission parameter, to control an uplink power,
wherein,
the uplink channel format is a first Physical Uplink Control Channel (PUCCH) format, and the first PUCCH format is a short PUCCH format of 2 bits or less that 2 bits;
the computer program is executed by the processor to:
acquire a quantity of symbols occupied by the first PUCCH format; and calculate the uplink power adjustment value by the following formula:
Δ
PUCCH
_
TF
,
c
(
i
)
=
1
0
log
1
0
(
N
r
e
f
N
symb
PUCCH
)
;
wherein Δ PUCCH_TF,c (i) is the uplink power adjustment value, N symb PUCCH is the quantity of symbols occupied by the first PUCCH format, and N ref is a reference coefficient corresponding to the first PUCCH format;
or,
the uplink channel format is a third PUCCH format or a fourth PUCCH format; wherein the third PUCCH format is a short PUCCH format of more than 2 bits, and the fourth PUCCH format is a long PUCCH format of more than 2 bits;
the computer program is executed by the processor to:
acquire a bit quantity of Uplink Control Information (UCI) corresponding to a PUCCH format and a quantity of Resource Elements (REs) carrying the UCI; and
calculate the uplink power adjustment value according to the bit quantity of the UCI and the quantity of the REs.
6. The mobile communication terminal according to claim 5 , wherein a value of N ref is a preset value or a value configured by a high-layer signaling.
7. The mobile communication terminal according to claim 5 , wherein the computer program is executed by the processor to:
in the case that the bit quantity of the UCI is greater than 2 and less than or equal to 11, calculate the uplink power adjustment value by the following formula:
Δ
PUCCH
_
TF
,
c
(
i
)
=
10
log
10
(
k
*
O
UCI
N
R
E
)
wherein Δ PUCCH_TF,c (i) is the uplink power adjustment value, O UCI is the bit quantity of the UCI, and N RE is the quantity of the REs;
in the case that the PUCCH is in the third PUCCH format, N RE =⅔*N symb PUCCH *M SC PUCCH ;
in the case that the PUCCH is in the fourth PUCCH format, N RE =(N symb PUCCH −N DMRS-symb PUCCH )*M SC PUCCH , N symb PUCCH is the quantity of symbols occupied by the PUCCH, N DMRS-symb PUCCH is a quantity of symbols occupied by the DMRS in the PUCCH, M SC PUCCH is a bandwidth occupied by the PUCCH, and k is a preset value.
8. The mobile communication terminal according to claim 7 , wherein the bandwidth occupied by the PUCCH is represented by a quantity of subcarriers, and k is greater than or equal to 3 and less than or equal to 9.
9. A non-transitory computer readable storage medium, comprising:
a computer program stored on the non-transitory computer readable storage medium, wherein, when the computer program is executed by a processor, the processor implements following steps:
acquiring an uplink transmission parameter corresponding to an uplink channel format; and
calculating an uplink power adjustment value according to the uplink transmission parameter, to control an uplink power,
wherein,
the uplink channel format is a first Physical Uplink Control Channel (PUCCH) format, and the first PUCCH format is a short PUCCH format of 2 bits or less than 2 bits;
the acquiring the uplink transmission parameter corresponding to the uplink channel format comprises: acquiring a quantity of symbols occupied by the first PUCCH format;
the calculating the uplink power adjustment value according to the uplink transmission parameter comprises: calculating the uplink power adjustment value by the following formula:
Δ
PUCCH
_
TF
,
c
(
i
)
=
1
0
log
1
0
(
N
r
e
f
N
symb
PUCCH
)
;
wherein Δ PUCCH_TF,c (i) the uplink power adjustment value, N symb PUCCH quantity of symbols occupied by the first PUCCH format, and N ref is a reference coefficient corresponding to the first PUCCH format;
or,
the uplink channel format is a third PUCCH format or a fourth PUCCH format; wherein the third PUCCH format is a short PUCCH format of more than 2 bits, and the fourth PUCCH format is a long PUCCH format of more than 2 bits;
the acquiring the uplink transmission parameter corresponding to the uplink channel format comprises: acquiring a bit quantity of Uplink Control Information (UCI) corresponding to a PUCCH format and a quantity of Resource Elements (REs) carrying the UCI;
the calculating the uplink power adjustment value according to the uplink transmission parameter comprises: calculating the uplink power adjustment value according to the bit quantity of the UCI and the quantity of the REs.
10. The non-transitory computer readable storage medium according to claim 9 , wherein, a value of N ref is a preset value or a value configured by a high-layer signaling.
11. The non-transitory computer readable storage medium according to claim 9 , wherein the calculating the uplink power adjustment value according to the bit quantity of the UCI and the quantity of the REs comprises:
in the case that the bit quantity of the UCI is greater than 2 and less than or equal to 11, calculating the uplink power adjustment value by the following formula:
Δ
PUCCH
_
TF
,
c
(
i
)
=
10
log
10
(
k
*
O
UCI
N
R
E
)
wherein Δ PUCCH_TF,c (i) is the uplink power adjustment value, O UCI is the bit quantity of the UCI, and N RE is the quantity of the REs;
in the case that the PUCCH is in the third PUCCH format, N RE =⅔*N symb PUCCH *M SC PUCCH ;
in the case that the PUCCH is in the fourth PUCCH format, N RE =(N symb PUCCH −N DMRS-symb PUCCH )*M SC PUCCH , N symb PUCCH is the quantity of symbols occupied by the PUCCH, N DMRS-symb PUCCH is a quantity of symbols occupied by the DMRS in the PUCCH, M SC PUCCH is a bandwidth occupied by the PUCCH, and k is a preset value.
12. The non-transitory computer readable storage medium according to claim 11 , wherein the bandwidth occupied by the PUCCH is represented by a quantity of subcarriers, and k is greater than or equal to 3 and less than or equal to 9.