Transmitting method and receiving method for control information, user equipment and base station
A method and apparatus are provided for transmitting and receiving control information. A method performed by a UE includes receiving, from a base station, DCI or a higher layer signaling; when first priority UCI and second priority UCI are transmitted in a same physical uplink channel, separately encoding the first priority UCI and the second priority UCI, based on a first number of bits of the first priority UCI and a second number of bits of the second priority UCI; and transmitting, based on the DCI or the higher layer signaling, the encoded first priority UCI and the second priority UCI, to the base station, on the same physical uplink channel.
1 . A method performed by a user equipment (UE) in a wireless communication system, the method comprising:
receiving, from a base station, information including parameters related to a maximum code rate, wherein each parameter related to the maximum code rate is respectively configured for a physical uplink control channel (PUCCH) format 2 and PUCCH format 3;
receiving, from the base station, information including parameters related to an additional maximum code rate, wherein each parameter related to the additional maximum code rate is respectively configured for the PUCCH format 2 and the PUCCH format 3;
based on (i) a PUCCH format corresponding to the PUCCH format 2 or the PUCCH format 3, (ii) a maximum code rate configured for the PUCCH format, and (iii) an additional maximum code rate configured for the PUCCH format, determining a first maximum code rate of a first uplink control information (UCI) with a first priority and a second maximum code rate of a second UCI with a second priority;
determining a minimum number of physical resource blocks (PRBs), M PB,min PUCCH , of the PUCCH format based on
M
RB
,
min
PUCCH
=
⌈
(
O
ACK
0
+
O
CRC
0
)
N
sc
,
ctrl
RB
·
N
symb
‐
UCI
PUCCH
·
Q
m
·
r
0
+
(
O
ACK
1
+
O
CRC
1
)
N
sc
,
ctrl
RB
·
N
symb
‐
UCI
PUCCH
·
Q
m
·
r
1
⌉
,
where r 0 is the second maximum code rate of the second UCI, r 1 the first maximum code rate of the first UC, O ACE 0 is a number of bits of the second UCI, O CRC 0 is a number of bits of the CRC for the second UCI, O ACE 1 is a number of bits of the first UCI, O CRC 1 is a number of bits of the CRC for the first UCI, N sc,ctrl RB is a number of subcarriers, N symbUCI PUCCH is a number of OFDM symbols, an Q m is a modulation order; and
based on the minimum number of PRBs of the PUCCH format, transmitting, to the base station, via a PUCCH using the PUCCH format, the first UCI with the first priority and the second UCI with the second priority.
2 . The method of claim 1 , further comprising:
receiving, from the base station, a PUCCH configuration list including a first PUCCH configuration with a second priority and a second PUCCH configuration with a first priority; and
in case that the PUCCH format is included in the second PUCCH configuration with the first priority, determining the first maximum code rate of the first UCI with the first priority among the parameters related to the maximum code rate associated with the second PUCCH configuration with the first priority, and determining the second maximum code rate of the second UCI with the second priority among the parameters related to the additional maximum code rate associated with the second PUCCH configuration with the first priority.
3 . The method of claim 1 , further comprising separately encoding the first UCI with the first priority and the second UCI with the second priority.
4 . The method of claim 3 , wherein a number of bits of the first UCI with the first priority is larger than a first predefined value or a number of bits of the second UCI with the second priority is larger than a second predefined value.
5 . The method of claim 3 , further comprising:
jointly encoding a third UCI and a fourth UCI, wherein the third UCI and the fourth UCI are different types and have a same priority; and
transmitting the third UCI and the fourth UCI via the PUCCH.
6 . The method of claim 1 , further comprising, in case that the PUCCH format is PUCCH format 3 and the minimum number of PRBs of the PUCCH format is not equal to 2 α 2 ·3 α 3 ·5 α 5 , wherein the α 2 , α 3 , and α 5 are non-negative integers, increasing the minimum number of PRBs of the PUCCH format to a nearest value to 2 α 2 ·3 α 3 ·5 α 5 .
7 . The method of claim 1 , further comprising, in case that the minimum number of PRBs of the PUCCH format is larger than a maximum available number of PRBs of the PUCCH format, transmitting the PUCCH over the maximum available number of PRBs of the PUCCH format.
8 . The method of claim 1 , further comprising:
based on the first maximum code rate of the first UCI, determining a first rate matching output sequence length of the first UCI; and
based on the first rate matching output sequence length of the first UCI, determining a second rate matching output sequence length of the second UCI.
9 . A user equipment (UE) in a wireless communication system, the UE comprising:
a transceiver; and
at least one processor coupled with the transceiver and configured to:
receive, from a base station, information including parameters related to a maximum code rate, wherein each parameter related to the maximum code rate is respectively configured for a physical uplink control channel (PUCCH) format 2 and a PUCCH format 3,
receive, from the base station, information including parameters related to an additional maximum code rate, wherein each parameter related to the additional maximum code rate is respectively configured for the PUCCH format 2 and the PUCCH format 3,
based on (i) a PUCCH format corresponding to the PUCCH format 2 or the PUCCH format 3, (ii) a maximum code rate configured for the PUCCH format, and (iii) an additional maximum code rate configured for the PUCCH format, determine a first maximum code rate of a first uplink control information (UCI) with a first priority and a second maximum code rate of a second UCI with a second priority,
determine a minimum number of physical resource blocks (PRBs), M RB,min PUCCH , of the PUCCH format based on
M
RB
,
min
PUCCH
=
⌈
(
O
ACK
0
+
O
CRC
0
)
N
sc
,
ctrl
RB
·
N
symb
‐
UCI
PUCCH
·
Q
m
·
r
0
+
(
O
ACK
1
+
O
CRC
1
)
N
sc
,
ctrl
RB
·
N
symb
‐
UCI
PUCCH
·
Q
m
·
r
1
⌉
,
where r 0 is the second maximum code rate of the second UCL, r 1 is the first maximum code rate of the first UCI, O ACK 0 is a number of bits of the second UCI, O CRC 0 is a number of bits of the CRC for the second UCI, O ACK 1 is a number of bits of the first UCI, O CRC 1 is a number of bits of the CRC for the first UCI, N sc,ctrl RB is a number of subcarriers, N symb-UCI PUCCH is a number of OFDM symbols, and Q m is a modulation order, and
based on the minimum number of PRBs of the PUCCH format, transmit, to the base station, via a PUCCH using the PUCCH format, the first UCI with the first priority and the second UCI with the second priority.
10 . The UE of claim 9 , wherein the at least one processor is further configured to:
receive, from the base station, a PUCCH configuration list including a first PUCCH configuration with a second priority and a second PUCCH configuration with a first priority, and
in case that the PUCCH format is included in the second PUCCH configuration with the first priority, determine the first maximum code rate of the first UCI with the first priority among the parameters related to the maximum code rate associated with the second PUCCH configuration with the first priority, and determine the second maximum code rate of the second UCI with the second priority among the parameters related to the additional maximum code rate associated with the second PUCCH configuration with the first priority.
11 . The UE of claim 9 , wherein the at least one processor is further configured to separately encode the first UCI with the first priority and the second UCI with the second priority.
12 . The UE of claim 11 , wherein a number of bits of the first UCI with the first priority is larger than a first predefined value or a number of bits of the second UCI with the second priority is larger than a second predefined value.
13 . The UE of claim 11 , wherein the at least one processor is further configured to:
jointly encode a third UCI and a fourth UCI, wherein the third UCI and the fourth UCI are different types and have a same priority, and
transmit the third UCI and the fourth UCI via the PUCCH.
14 . The UE of claim 9 , wherein the at least one processor is further configured to, in case that the minimum number of PRBs of the PUCCH format is larger than a maximum available number of PRBs of the PUCCH format, transmit the PUCCH over the maximum available number of PRBs of the PUCCH format.
15 . The UE of claim 9 , wherein the at least one processor is further configured to:
based on the first maximum code rate of the first UCI, determine a first rate matching output sequence length of the first UCI, and
based on the first rate matching output sequence length of the first UCI, determine a second rate matching output sequence length of the second UCI.
16 . A method performed by a base station (BS) in a wireless communication system, the method comprising:
transmitting, to a user equipment (UE), information including parameters related to a maximum code rate, wherein each parameter related to the maximum code rate is respectively configured for a physical uplink control channel (PUCCH) format 2 and a PUCCH format 3;
transmitting, to the UE, information including parameters related to an additional maximum code rate, wherein each parameter related to the additional maximum code rate is respectively configured for the PUCCH format 2 and the PUCCH format 3; and
receiving, from the UE, via a PUCCH using a PUCCH format, a first uplink control information (UCI) with a first priority and a second UCI with a second priority,
wherein, based on (i) the PUCCH format corresponding to the PUCCH format 2 or the PUCCH format 2, (ii) a maximum code rate configured for the PUCCH format, and (iii) an additional maximum code rate configured for the PUCCH format, a first maximum code rate of the first UCI with the first priority and a second maximum code rate of the second UCI with the second priority are determined, and
wherein a minimum number of physical resource blocks (PRBs), N RB,minhu PUCCH , of the PUCCH format is determined based on
M
RB
,
min
PUCCH
=
⌈
(
O
ACK
0
+
O
CRC
0
)
N
sc
,
ctrl
RB
·
N
symb
‐
UCI
PUCCH
·
Q
m
·
r
0
+
(
O
ACK
1
+
O
CRC
1
)
N
sc
,
ctrl
RB
·
N
symb
‐
UCI
PUCCH
·
Q
m
·
r
1
⌉
,
where r 0 is the second maximum code rate of the second UCI, r 1 is the first maximum code rate of the first UCI, O ACK 0 is a number of bits of the second UCI, O CRC 0 is a number of bits of the CRC for the second UCI, O ACK 1 is a number of bits of the first UCI, O CRC 1 is a number of bits of the CRC for the first UCI, N sc,ctrl RB is a number of subcarrier, N symb-UCI PUCCH is a number of OFDM symbols, and Q m is a modulation order.
17 . A base station (BS) in a wireless communication system, the BS comprising:
a transceiver; and
at least one processor coupled with the transceiver and configured to:
transmit, to a user equipment (UE), information including parameters related to a maximum code rate, wherein each parameter related to the maximum code rate is respectively configured for a physical uplink control channel (PUCCH) format 2 and a PUCCH format 3,
transmit, to the UE, information including parameters related to an additional maximum code rate, wherein each parameter related to the additional maximum code rate is respectively configured for the PUCCH format 2 and the PUCCH format 2, and
receive, from the UE, via a PUCCH using a PUCCH format, a first uplink control information (UCI) with a first priority and a second UCI with a second priority,
wherein, based on (i) the PUCCH format corresponding to the PUCCH format 2 or the PUCCH format 3, (ii) a maximum code rate configured for the PUCCH format, and (iii) an additional maximum code rate configured for the PUCCH format, a first maximum code rate of the first UCI with the first priority and a second maximum code rate of the second UCI with the second priority are determined, and
wherein a minimum number of physical resource blocks (PRBs), M RB, min PUCCH , of the PUCCH format is determined based on
M
RB
,
min
PUCCH
=
⌈
(
O
ACK
0
+
O
CRC
0
)
N
sc
,
ctrl
RB
·
N
symb
‐
UCI
PUCCH
·
Q
m
·
r
0
+
(
O
ACK
1
+
O
CRC
1
)
N
sc
,
ctrl
RB
·
N
symb
‐
UCI
PUCCH
·
Q
m
·
r
1
⌉
,
where r 0 is the second maximum code rate of the second UCI, r 1 is the first maximum code rate of the first UCI, O ACK 0 is a number of bits of the second UCI, O CRC 0 is a number of bits of the CRC for the second UCI, O ACK 1 is a number of bits of the first UCI, O CRC 1 is a number of the bits of the CRC for the first UCI, N sc,ctrl RB is a number of subcarriers, N symb-UCI PUCCH is a number of OFDM symbols, and Q m is a modulation order.