Communication method and apparatus

1. A communication method, comprising:

receiving first control information from a network device, wherein the first control information comprises information about a first physical resource for transmitting a first data packet, the first physical resource corresponds to K uplink data channels, each of the K uplink data channels is used to transmit the first data packet once, and K is a positive integer;

receiving second control information from the network device, wherein the second control information comprises information about a first time domain resource for transmitting first uplink control information (UCI), and the first time domain resource overlaps a first uplink data channel of the K uplink data channels in time domain, wherein the first uplink data channel is different from a reference uplink data channel for determining a first transport block size (TBS), and the first TBS is a TBS of the first data packet;

determining a physical resource occupied by the first UCI; and

sending the first UCI to the network device by using the physical resource occupied by the first UCI.

2. The method according to claim 1 , wherein a quantity of physical resources comprised in the reference uplink data channel is greater than a quantity of physical resources comprised in the first uplink data channel.

3. The method according to claim 1 , wherein the determining a physical resource occupied by the first UCI comprises:

determining, based on a quantity of equivalent physical resources, a quantity of physical resources occupied by the first UCI, wherein the quantity of equivalent physical resources is a quantity of physical resources that are included in the reference uplink data channel and that can be used to carry UCI.

4. The method according to claim 1 , wherein the determining a physical resource occupied by the first UCI comprises:

determining, based on a quantity of equivalent physical resources and the first TBS, a quantity of physical resources occupied by the first UCI, wherein the quantity of equivalent physical resources is a quantity of physical resources comprised in the reference uplink data channel and that can be used to carry UCI.

5. The method according to claim 4 , wherein the determining, based on a quantity of equivalent physical resources and the first TBS, a quantity of physical resources occupied by the first UCI comprises:

when the first UCI is a hybrid automatic repeat request acknowledgment (HARQ-ACK), determining, based on Q′ ACK , the quantity of physical resources occupied by the first UCI, wherein

Q

ACK

′

=

(

O

ACK

+

L

ACK

)

·

β

offset

PUSCH

·

∑

l

=

0

N

_

symb

,

all

PUSCH

-

1

M

_

sc

UCI

(

l

)

∑

r

=

0

C

UL

-

SCH

-

1

K

r

;

when the first UCI is a channel state information (CSI) part 1, determining, based on Q′ CSI-1 , the quantity of physical resources occupied by the first UCI, wherein

Q

CSI

-

1

′

=

(

O

CSI

-

1

+

L

CSI

-

1

)

·

β

offset

PUSCH

·

∑

l

=

0

N

_

symb

,

all

PUSCH

-

1

M

_

sc

UCI

(

l

)

∑

r

=

0

C

UL

-

SCH

-

1

K

r

;

or

when the first UCI is a CSI part 2, determining, based on Q′ CSI-2 , the quantity of physical resources occupied by the first UCI, wherein

Q

CSI

-

2

′

=

(

O

CSI

-

2

+

L

CSI

-

2

)

·

β

offset

PUSCH

·

∑

l

=

0

N

_

symb

,

all

PUSCH

-

1

M

_

sc

UCI

(

l

)

∑

r

=

0

C

UL

-

SCH

-

1

K

r

,

wherein

⁢

∑

l

=

0

N

_

symb

,

all

PUSCH

-

1

M

_

sc

UCI

(

l

)

is the quantity of equivalent physical resources, N symb,all PUSCH is a quantity of time domain symbols in the reference uplink data channel, M sc UCI (l) is a quantity of physical resources that can be used to carry UCI on the l th symbol in the reference uplink data channel, Σ r=0 C UL-SCH −1 K r is the first TBS, β offset PUSCH is an equalization parameter, O ACK , O CSI-1 , or O CSI-2 is a payload size of the first UCI, and L ACK , L CSI-1 , or L CSI-2 is a quantity of cyclic redundancy check bits for the first UCI.

6. The method according to claim 1 , wherein the physical resource occupied by the first UCI is a physical resource on the first uplink data channel.

7. The method according to claim 1 , wherein K is greater than or equal to 2.

8. An apparatus, comprising:

one or more processors; and

a non-transitory computer readable medium storing instructions that, when executed by the one or more processors, cause the apparatus to:

send first control information to a terminal device, wherein the first control information comprises information about a first physical resource for transmitting a first data packet, the first physical resource corresponds to K uplink data channels, each of the K uplink data channels is used to transmit the first data packet once, and K is a positive integer;

send second control information to the terminal device, wherein the second control information comprises information about a first time domain resource for transmitting first uplink control information (UCI), and the first time domain resource overlaps a first uplink data channel of the K uplink data channels in time domain, wherein the first uplink data channel is different from a reference uplink data channel for determining a first transport block size (TBS), and the first TBS is a TBS of the first data packet;

determine a physical resource occupied by the first UCI; and

receive the first UCI from the terminal device by using the physical resource occupied by the first UCI.

9. The apparatus according to claim 8 , wherein a quantity of physical resources comprised in the reference uplink data channel is greater than a quantity of physical resources comprised in the first uplink data channel.

10. The apparatus according to claim 8 , wherein a quantity of physical resources occupied by the first UCI corresponds to a quantity of equivalent physical resources, and the quantity of equivalent physical resources is a quantity of physical resources that are included in the reference uplink data channel and that can be used to carry UCI.

11. The apparatus according to claim 8 , wherein a quantity of physical resources occupied by the first UCI corresponds to a quantity of equivalent physical resources and the first TBS, and the quantity of equivalent physical resources is a quantity of physical resources comprised in the reference uplink data channel and that can be used to carry UCI.

12. The apparatus according to claim 11 , wherein that a quantity of physical resources occupied by the first UCI corresponds to a quantity of equivalent physical resources and the first TBS comprises:

when the first UCI is a hybrid automatic repeat request acknowledgment (HARQ-ACK), the quantity of physical resources occupied by the first UCI is obtained based on Q′ ACK , wherein

Q

ACK

′

=

(

O

ACK

+

L

ACK

)

·

β

offset

PUSCH

·

∑

l

=

0

N

_

symb

,

all

PUSCH

-

1

M

_

sc

UCI

(

l

)

∑

r

=

0

C

UL

-

SCH

-

1

K

r

;

when the first UCI is a channel state information (CSI) part 1, the quantity of physical resources occupied by the first UCI is obtained based on Q′ CSI-1 , wherein

Q

CSI

-

1

′

=

(

O

CSI

-

1

+

L

CSI

-

1

)

·

β

offset

PUSCH

·

∑

l

=

0

N

_

symb

,

all

PUSCH

-

1

M

_

sc

UCI

(

l

)

∑

r

=

0

C

UL

-

SCH

-

1

K

r

;

or

when the first UCI is a CSI part 2, the quantity of physical resources occupied by the first UCI is obtained based on Q′ CSI-2 , wherein

Q

CSI

-

2

′

=

(

O

CSI

-

2

+

L

CSI

-

2

)

·

β

offset

PUSCH

·

∑

l

=

0

N

_

symb

,

all

PUSCH

-

1

⁢

M

_

sc

UCI

(

l

)

∑

r

=

0

C

UL

-

SCH

-

1

⁢

K

r

,

wherein

⁢

∑

l

=

0

N

_

symb

,

all

PUSCH

-

1

⁢

M

_

sc

UCI

(

l

)

is the quantity of equivalent physical resources, N symb,all PUSCH is a quantity of time domain symbols in the reference uplink data channel, M sc UCI (l) is a quantity of physical resources that can be used to carry UCI on the l th symbol in the reference uplink data channel, Σ r=0 C UL-SCH −1 K r is the first TBS, β offset PUSCH is an equalization parameter, O ACK , O CSI-1 , or O CSI-2 is a payload size of the first UCI, L ACK , L CSI-1 , or L CSI-2 is a quantity of cyclic redundancy check bits for the first UCI.

13. The apparatus according to claim 8 , wherein the physical resource occupied by the first UCI is a physical resource on the first uplink data channel.

14. The apparatus according to claim 8 , wherein K is greater than or equal to 2.

15. An apparatus comprising:

one or more processors; and

a non-transitory computer readable medium storing instructions that, when executed by the one or more processors, cause the apparatus to:

receive first control information from a network device, wherein the first control information comprises information about a first physical resource for transmitting a first data packet, the first physical resource corresponds to K uplink data channels, each of the K uplink data channels is used to transmit the first data packet once, and K is a positive integer;

receive second control information from the network device, wherein the second control information comprises information about a first time domain resource for transmitting first uplink control information (UCI), and the first time domain resource overlaps a first uplink data channel of the K uplink data channels in time domain, wherein the first uplink data channel is different from a reference uplink data channel for determining a first transport block size (TBS), and the first TBS is a TBS of the first data packet;

determine a physical resource occupied by the first UCI; and

send the first UCI to the network device by using the physical resource occupied by the first UCI.

16. The apparatus according to claim 15 , wherein a quantity of physical resources comprised in the reference uplink data channel is greater than a quantity of physical resources comprised in the first uplink data channel.

17. The apparatus according to claim 15 , wherein the instructions further cause the apparatus to:

determine, based on a quantity of equivalent physical resources, a quantity of physical resources occupied by the first UCI, wherein the quantity of equivalent physical resources is a quantity of physical resources that are included in the reference uplink data channel and that can be used to carry UCI.

18. The apparatus according to claim 15 , wherein the instructions further cause the apparatus to:

determine, based on a quantity of equivalent physical resources and the first TBS, a quantity of physical resources occupied by the first UCI, wherein the quantity of equivalent physical resources is a quantity of physical resources comprised in the reference uplink data channel and that can be used to carry UCI.

19. The apparatus according to claim 18 ,

when the first UCI is a hybrid automatic repeat request acknowledgment (HARQ-ACK), the instructions further cause the apparatus to determine, based on Q′ ACK , the quantity of physical resources occupied by the first UCI, wherein

Q

ACK

′

=

(

O

ACK

+

L

ACK

)

·

β

offset

PUSCH

·

∑

l

=

0

N

_

symb

,

all

PUSCH

-

1

⁢

M

_

sc

UCI

(

l

)

∑

r

=

0

C

UL

-

SCH

-

1

⁢

K

r

;

when the first UCI is a channel state information (CSI) part 1, the instructions further cause the apparatus to determine, based on Q′ CSI-1 , the quantity of physical resources occupied by the first UCI, wherein

Q

CSI

-

1

′

=

(

O

CSI

-

1

+

L

CSI

-

1

)

·

β

offset

PUSCH

·

∑

l

=

0

N

_

symb

,

all

PUSCH

-

1

⁢

M

_

sc

UCI

(

l

)

∑

r

=

0

C

UL

-

SCH

-

1

⁢

K

r

;

or

when the first UCI is a CSI part 2, the instructions further cause the apparatus to determine, based on Q′ CSI-2 , the quantity of physical resources occupied by the first UCI, wherein

Q

CSI

-

2

′

=

(

O

CSI

-

2

+

L

CSI

-

2

)

·

β

offset

PUSCH

·

∑

l

=

0

N

_

symb

,

all

PUSCH

-

1

⁢

M

_

sc

UCI

(

l

)

∑

r

=

0

C

UL

-

SCH

-

1

⁢

K

r

,

wherein

⁢

∑

l

=

0

N

_

symb

,

all

PUSCH

-

1

⁢

M

_

sc

UCI

(

l

)

is the quantity of equivalent physical resources, N symb,all PUSCH is a quantity of time domain symbols in the reference uplink data channel, M sc UCI (l) is a quantity of physical resources that can be used to carry UCI on the l th symbol in the reference uplink data channel, Σ r=0 C UL-SCH −1 K r is the first TBS, β offset PUSCH an equalization parameter, O ACK , O CSI-1 , or O CSI-2 is a payload size of the first UCI, and L ACK , L CSI-1 , or L CSI-2 is a quantity of cyclic redundancy check bits for the first UCI.

20. The apparatus according to claim 15 , wherein the physical resource occupied by the first UCI is a physical resource on the first uplink data channel.