Control information sending/receiving method and device

1. A control information receiving method, the method comprising:

receiving broadcast information, wherein the broadcast information includes indication information indicating a time-domain resource set of control channels;

determining a time-domain location of a control channel carrying control information from the time-domain resource set based on a time-domain location of a broadcast channel carrying the broadcast information, wherein the time-domain location of the broadcast channel is one of at least two predefined time-domain locations in at least one timeslot; and

receiving the control information.

2. The method according to claim 1 , wherein determining the time-domain location of the control channel carrying control information from the time-domain resource set based on the time-domain location of the broadcast channel carrying the broadcast information comprises:

determining, based on the time-domain location of the broadcast channel and a correspondence between the time-domain location of the broadcast channel and the time-domain location of the control channel, the time-domain location of the control channel from the time-domain resource set.

3. The method according to claim 1 , wherein the time-domain location of the broadcast channel is a location, relative to a start symbol of a timeslot, and the time-domain location of the control channel is a location, relative to a start symbol of a timeslot.

4. The method according to claim 1 , wherein the broadcast channel is located in a synchronization signal block, a subcarrier width of the broadcast channel is 30 kHz, a subcarrier width of the control channel is 30 kHz, and the time-domain resource set includes a symbol with a number 0 in a timeslot and a symbol with a number 1 in a timeslot, wherein

the time-domain location of the synchronization signal block is symbols with numbers 2 to 5 in a timeslot, the time-domain location of the control channel is the symbol with the number 0; or

the time-domain location of the synchronization signal block is symbols with numbers 6 to 9 in a timeslot, the time-domain location of the control channel is the symbol with the number 1.

5. The method according to claim 1 , wherein the broadcast channel is located in a synchronization signal block, a subcarrier width of the broadcast channel is 30 kHz, a subcarrier width of the control channel is 30 kHz, and the time-domain resource set includes symbols with numbers 0 to 1 in a timeslot and symbols with numbers 2 to 3 in a timeslot, wherein

the time-domain location of the synchronization signal block is symbols with numbers 4 to 7 in a timeslot, the time-domain location of the control channel is the symbols with the numbers 0 to 1; or

the time-domain location of the synchronization signal block is symbols with numbers 8 to 11 in a timeslot, the time-domain location of the control channel is the symbols with the numbers 2 to 3.

6. The method according to claim 1 , wherein the broadcast channel is located in a synchronization signal block, a subcarrier width of the broadcast channel is 15 kHz, and a subcarrier width of the control channel is 15 kHz, wherein

the time-domain location of the synchronization signal block is symbols with numbers 2 to 5 in a timeslot, the time-domain location of the control channel is symbols with numbers 0 to 1 in a timeslot; or

the time-domain location of the synchronization signal block is symbols with numbers 2 to 5 in a timeslot, and the time-domain location of the control channel is a symbol with a number 0 in a timeslot.

7. The method according to claim 1 , wherein a reference signal of the broadcast channel is quasi-co-located with a reference signal of the control channel.

8. The method according to claim 1 , wherein the time-domain location of the control channel is orthogonal to the time-domain location of the broadcast channel and a time-domain location of a synchronization signal corresponding to the broadcast channel; or

the time-domain location of the control channel is the same or partially the same as the time-domain location of the broadcast channel and a time-domain location of a synchronization signal corresponding to the broadcast channel; or

a portion of the time-domain location of the control channel is orthogonal to a time-domain location of the broadcast channel and a time-domain location of a synchronization signal corresponding to the broadcast channel, and the other portion of the time-domain location of the control channel is the same or partially the same as the time-domain location of the broadcast channel and the time-domain location of the synchronization signal.

9. A control information receiving apparatus comprising at least one processor, wherein the at least one processor is configured to:

receive broadcast information, wherein the broadcast information includes indication information indicating a time-domain resource set of control channels;

determine a time-domain location of a control channel carrying control information from the time-domain resource set based on a time-domain location of a broadcast channel carrying the broadcast information, wherein the time-domain location of the broadcast channel is one of at least two predefined time-domain locations in at least one timeslot; and

receive the control information.

10. The apparatus according to claim 9 , wherein to determine the time-domain location of the control channel from the time-domain resource set based on the time-domain location of the broadcast channel, the at least one processor is further configured to:

determine, based on the time-domain location of the broadcast channel and a correspondence between the time-domain location of the broadcast channel and the time-domain location of the control channel, the time-domain location of the control channel from the time-domain resource set.

11. The apparatus according to claim 9 , wherein the time-domain location of the broadcast channel is a location, relative to a start symbol of a timeslot, and the time-domain location of the control channel is a location, relative to a start symbol of a timeslot.

12. The apparatus according to claim 9 , wherein the broadcast channel is located in a synchronization signal block, a subcarrier width of the broadcast channel is 30 kHz, a subcarrier width of the control channel is 30 kHz, and the time-domain resource set includes a symbol with a number 0 in a timeslot and a symbol with a number 1 in a timeslot, wherein

the time-domain location of the synchronization signal block is symbols with numbers 2 to 5 in a timeslot, the time-domain location of the control channel is the symbol with the number 0; or

the time-domain location of the synchronization signal block is symbols with numbers 6 to 9 in a timeslot, the time-domain location of the control channel is the symbol with the number 1.

13. The apparatus according to claim 9 , wherein the broadcast channel is located in a synchronization signal block, a subcarrier width of the broadcast channel is 30 kHz, a subcarrier width of the control channel is 30 kHz, and the time-domain resource set includes symbols with numbers 0 to 1 in a timeslot and symbols with numbers 2 to 3 in a timeslot, wherein

the time-domain location of the synchronization signal block is symbols with numbers 4 to 7 in a timeslot, the time-domain location of the control channel is the symbols with the numbers 0 to 1; or

the time-domain location of the synchronization signal block is symbols with numbers 8 to 11 in a timeslot, the time-domain location of the control channel is the symbols with the numbers 2 to 3.

14. The apparatus according to claim 9 , wherein the broadcast channel is located in a synchronization signal block, a subcarrier width of the broadcast channel is 15 kHz, and a subcarrier width of the control channel is 15 kHz, wherein the time-domain location of the synchronization signal block is symbols with numbers 2 to 5 in a timeslot, the time-domain location of the control channel is symbols with numbers 0 to 1 in a timeslot; or the time-domain location of the synchronization signal block is symbols with numbers 2 to 5 in a timeslot, and the time-domain location of the control channel is a symbol with a number 0 in a timeslot.

15. The apparatus according to claim 9 , wherein a reference signal of the broadcast channel is quasi-co-located with a reference signal of the control channel.

16. The apparatus according to claim 9 , wherein the time-domain location of the control channel is orthogonal to the time-domain location of the broadcast channel and a time-domain location of a synchronization signal corresponding to the broadcast channel; or

the time-domain location of the control channel is the same or partially the same as the time-domain location of the broadcast channel and a time-domain location of a synchronization signal corresponding to the broadcast channel; or

a portion of the time-domain location of the control channel is orthogonal to a time-domain location of the broadcast channel and a time-domain location of a synchronization signal corresponding to the broadcast channel, and the other portion of the time-domain location of the control channel is the same or partially the same as the time-domain location of the broadcast channel and the time-domain location of the synchronization signal.

17. A non-transitory computer-readable storage medium comprising executable instructions, wherein the executable instructions, when executed by a terminal, cause the terminal to:

receive broadcast information, wherein the broadcast information includes indication information indicating a time-domain resource set of control channels;

determine a time-domain location of a control channel carrying control information from the time-domain resource set based on a time-domain location of a broadcast channel carrying the broadcast information, wherein the time-domain location of the broadcast channel is one of at least two predefined time-domain locations in at least one timeslot; and

receive the control information.

18. The non-transitory computer-readable storage medium according to claim 17 , wherein the executable instructions further cause the terminal to:

determine, based on the time-domain location of the broadcast channel and a correspondence between the time-domain location of the broadcast channel and the time-domain location of the control channel, the time-domain location of the control channel from the time-domain resource set.

19. The non-transitory computer-readable storage medium according to claim 17 , wherein the time-domain location of the broadcast channel is a location, relative to a start symbol of a timeslot, and the time-domain location of the control channel is a location, relative to a start symbol of a timeslot.

20. The non-transitory computer-readable storage medium according to claim 17 , wherein the broadcast channel is located in a synchronization signal block, a subcarrier width of the broadcast channel is 30 kHz, a subcarrier width of the control channel is 30 kHz, and the time-domain resource set includes a symbol with a number 0 in a timeslot and a symbol with a number 1 in a timeslot, wherein

the time-domain location of the synchronization signal block is symbols with numbers 2 to 5 in a timeslot, the time-domain location of the control channel is the symbol with the number 0; or

the time-domain location of the synchronization signal block is symbols with numbers 6 to 9 in a timeslot, the time-domain location of the control channel is the symbol with the number 1; or

wherein the broadcast channel is located in a synchronization signal block, a subcarrier width of the broadcast channel is 30 kHz, a subcarrier width of the control channel is 30 kHz, and the time-domain resource set includes symbols with numbers 0 to 1 in a timeslot and symbols with numbers 2 to 3 in a timeslot, wherein

the time-domain location of the synchronization signal block is symbols with numbers 4 to 7 in a timeslot, the time-domain location of the control channel is the symbols with the numbers 0 to 1; or

the time-domain location of the synchronization signal block is symbols with numbers 8 to 11 in a timeslot, the time-domain location of the control channel is the symbols with the numbers 2 to 3; or

wherein the broadcast channel is located in a synchronization signal block, a subcarrier width of the broadcast channel is 15 kHz, and a subcarrier width of the control channel is 15 kHz, wherein

the time-domain location of the synchronization signal block is symbols with numbers 2 to 5 in a timeslot, the time-domain location of the control channel is symbols with numbers 0 to 1 in a timeslot; or

the time-domain location of the synchronization signal block is symbols with numbers 2 to 5 in a timeslot, the time-domain location of the control channel is a symbol with a number 0 in a timeslot.