Method and device for repeatedly transmitting data channel

1 . A method for repeatedly transmitting data channel, comprising:

determining a transport block size corresponding to the data channel according to a first slot repetition factor;

obtaining encoded information bits by encoding the data channel according to the transport block size corresponding to the data channel; and

mapping the encoded information bits onto a plurality of slots;

wherein the mapping the encoded information bits onto the plurality of slots comprises:

mapping one redundant version of the encoded information bits successively onto the plurality of slots;

wherein the first slot repetition factor is a second slot repetition factor configured by a network device multiplied by a first coefficient, the second slot repetition factor indicating a number of slots for repeated transmission of the data channel.

2 . The method according to claim 1 , wherein said determining the transport block size corresponding to the data channel according to the first slot repetition factor comprises:

determining the transport block size corresponding to the data channel according to the first slot repetition factor and a scheduling parameter.

3 . The method according to claim 2 , wherein the scheduling parameter comprises at least one of:

a target number of Resource Elements (REs), a coding rate, a modulation order, or a number of transmission layers.

4 . The method according to claim 2 , wherein said determining the transport block size corresponding to the data channel according to the first slot repetition factor and the scheduling parameter comprises:

determining an intermediate number of information bits according to the first slot repetition factor and the scheduling parameter; and

determining the transport block size corresponding to the data channel according to the intermediate number of information bits.

5 . The method according to claim 4 , wherein said determining the intermediate number of information bits according to the first slot repetition factor and the scheduling parameter comprises:

determining a target number of REs according to the first slot repetition factor; and

determining the intermediate number of information bits according to the target number of REs and the scheduling parameter.

6 . The method according to claim 5 , wherein said determining the target number of REs according to the first slot repetition factor comprises:

determining the target number of REs according to the first slot repetition factor and a reference number of available REs in one slot.

7 . The method according to claim 6 , wherein said determining the target number of REs according to the first slot repetition factor and the reference number of available REs in one slot comprises:

determining the target number, N RE , of REs according to:

N RE =X ·min ( N, N′ RE )·n PRB ,

where X represents the first slot repetition factor, N represents a first reference RE number threshold, n PRB represents a number of Resource Blocks (RBs) allocated by a network device, and N′ RE represents the reference number of available REs in one slot.

8 . The method according to claim 1 , wherein the first slot repetition factor is configured by a network device.

9 . A communication device, comprising a processor and a memory, wherein the memory has a computer program stored thereon, and the processor is configured to invoke and execute the computer program stored in the memory to:

determine a transport block size corresponding to a data channel according to a first slot repetition factor;

obtain encoded information bits by encoding the data channel according to the transport block size corresponding to the data channel; and

map the encoded information bits onto a plurality of slots;

wherein, to map the encoded information bits onto a plurality of slots, the processor is configured to:

map one redundant version of the encoded information bits successively onto the plurality of slots;

wherein the first slot repetition factor is a second slot repetition factor configured by a network device multiplied by a first coefficient, the second slot repetition factor indicating a number of slots for repeated transmission of the data channel.

10 . The communication device according to claim 9 , wherein said determining the transport block size corresponding to the data channel according to the first slot repetition factor comprises:

determining the transport block size corresponding to the data channel according to the first slot repetition factor and a scheduling parameter.

11 . The communication device according to claim 10 , wherein the scheduling parameter comprises at least one of:

a target number of Resource Elements (REs), a coding rate, a modulation order, or a number of transmission layers.

12 . The communication device according to claim 10 , wherein said determining the transport block size corresponding to the data channel according to the first slot repetition factor and the scheduling parameter comprises:

determining an intermediate number of information bits according to the first slot repetition factor and the scheduling parameter; and

determining the transport block size corresponding to the data channel according to the intermediate number of information bits.

13 . The communication device according to claim 12 , wherein said determining the intermediate number of information bits according to the first slot repetition factor and the scheduling parameter comprises:

determining a target number of REs according to the first slot repetition factor; and

determining the intermediate number of information bits according to the target number of REs and the scheduling parameter.

14 . The communication device according to claim 13 , wherein said determining the target number of REs according to the first slot repetition factor comprises:

determining the target number of REs according to the first slot repetition factor and a reference number of available REs in one slot.

15 . The communication device according to claim 14 , wherein said determining the target number of REs according to the first slot repetition factor and the reference number of available REs in one slot comprises:

determining the target number, NRE, of REs according to:

N RE =X ·min ( N, N′ RE )·n PRB ,

where X represents the first slot repetition factor, N represents a first reference RE number threshold, n PRB represents a number of Resource Blocks (RBs) allocated by a network device, and N′ RE represents the reference number of available REs in one slot.

16 . The communication device according to claim 9 , wherein the first slot repetition factor is configured by a network device.

17 . A non-transitory computer-readable storage medium, storing a computer program that causes a computer to:

determine a transport block size corresponding to a data channel according to a first slot repetition factor;

obtain encoded information bits by encoding the data channel according to the transport block size corresponding to the data channel; and

map the encoded information bits onto a plurality of slots;

wherein, to map the encoded information bits onto a plurality of slots, the computer is configured to:

map one redundant version of the encoded information bits successively onto the plurality of slots;

wherein the first slot repetition factor is a second slot repetition factor configured by a network device multiplied by a first coefficient, the second slot repetition factor indicating a number of slots for repeated transmission of the data channel.

18 . The non-transitory computer-readable storage medium according to claim 17 , wherein said determining the transport block size corresponding to the data channel according to the first slot repetition factor comprises:

determining the transport block size corresponding to the data channel according to the first slot repetition factor and a scheduling parameter.