Communications method and apparatus

1. A communications method, comprising:

determining one or more occasions on which a first channel is to be sent; and

sending the first channel on the one or more occasions to at least one terminal device, wherein the first channel carries first information, and the first information comprises one or more information blocks, wherein each information block corresponds to one of the at least one terminal device, each information block corresponds to a different terminal device, each information block comprises a first information field set used to indicate information about detection performed on a second channel by a terminal device corresponding to the information block in which the first information field set is located; and

wherein the one or more information blocks include at least two information blocks, types of first information field sets comprised in the at least two information blocks in the same first information are different; or wherein the one or more occasions include at least two occasions, types of first information field sets comprised in information blocks that correspond to a same terminal device and that are in the first information carried on the first channel sent on the at least two different occasions are different:

wherein the first information further comprises a third information field that indicates a terminal device corresponding to each of the at least two information blocks and a location of each of the at least two information blocks.

2. The method according to claim 1 , wherein each information block further comprises a second information field, and the second information field is used to indicate a type of the first information field set.

3. The method according to claim 1 , wherein a quantity of bits in each first information field set is the same or a quantity of bits in each information block is the same.

4. The method according to claim 1 , wherein when the first information field set is of a first type, the first information field set is used to indicate whether a terminal device performs detection on a second channel within one or more discontinuous reception (DRX) cycles after an occasion on which the first channel is detected.

5. The method according to claim 1 , wherein when the first information field set is of a second type, the first information field set is used to indicate whether a terminal device stops detection on a second channel in a period of time, or whether a terminal device stops at least one timer in advance.

6. A communications method, comprising:

receiving a first channel on one or more occasions from a network device, wherein the first channel carries first information, and the first information comprises one or more information blocks, wherein each information block corresponds to one terminal device, each information block corresponds to a different terminal device, each information block comprises first information field set used to indicate information about detection performed on a second channel by a terminal device corresponding to the information block in which the first information field set is located, and

wherein the one or more information blocks include at least two information blocks, types of first information field sets comprised in the at least two information blocks in the same first information are different; or wherein the one or more occasions are at least two occasions, types of first information field sets comprised in information blocks that correspond to a same terminal device and that are in the first information carried on the first channel sent on the at least two different occasions are different; and

determining, based on the first information, the information about detection performed on a second channel by a terminal device,

wherein the first information further comprises a third information field that indicates a terminal device corresponding to each of the at least two information blocks and a location of each of the at least two information blocks.

7. The method according to claim 6 , wherein each information block further comprises a second information field, and the second information field is used to indicate a type of the first information field set.

8. The method according to claim 6 , wherein a quantity of bits in each first information field set is the same or a quantity of bits in each information block is the same.

9. The method according to claim 6 , wherein when the first information field set is of a first type, the first information field set is used to indicate whether a terminal device performs detection on a second channel within one or more discontinuous reception (DRX) cycles after an occasion on which the first channel is detected.

10. The method according to claim 6 , wherein when the first information field set is of a second type, the first information field set is used to indicate whether a terminal device stops detection on a second channel in a period of time, or whether a terminal device stops at least one timer in advance.

11. A communications apparatus, comprising:

a processing circuit, configured to determine one or more occasions on which a first channel is sent; and

a transceiver circuit, configured to send, to at least one terminal device, the first channel on the one or more occasions determined by the processing circuit, wherein the first channel carries first information, and the first information comprises one or more information blocks;

wherein each information block corresponds to one of the at least one terminal device, each information block corresponds to a different terminal device, each information block comprises one first information field set used to indicate information about detection performed on a second channel by a terminal device corresponding to the information block in which the first information field set is located; and

wherein the one or more information blocks are at least two information blocks, types of first information field sets comprised in the at least two information blocks in the same first information are different; or wherein the one or more occasions are at least two occasions, types of first information field sets comprised in information blocks that correspond to a same terminal device and that are in the first information carried on the first channel sent on the at least two different occasions are different;

wherein the first information further comprises a third information field that indicates a terminal device corresponding to each of the at least two information blocks and a location of each of the at least two information blocks.

12. The apparatus according to claim 11 , wherein each information block further comprises a second information field, and the second information field is used to indicate a type of the first information field set.

13. The apparatus according to claim 11 , wherein a quantity of bits in each first information field set is the same or a quantity of bits in each information block is the same.

14. The apparatus according to claim 11 , wherein when the first information field set is of a first type, the first information field set is used to indicate whether a terminal device performs detection on a second channel within one or more discontinuous reception (DRX) cycles after an occasion on which the first channel is detected.

15. The apparatus according to claim 11 , wherein when the first information field set is of a second type, the first information field set is used to indicate whether a terminal device stops detection on a second channel in a period of time, or whether a terminal device stops at least one timer in advance.

16. A communications apparatus, comprising:

a transceiver circuit, configured to receive a first channel on one or more occasions from a network device, wherein the first channel carries first information, and the first information comprises one or more information blocks, wherein each information block corresponds to one terminal device, each information block corresponds to a different terminal device, each information block comprises one first information field set used to indicate information about detection performed on a second channel by a terminal device corresponding to the information block in which the first information field set is located, and

wherein the one or more information blocks are at least two information blocks, types of first information field sets comprised in the at least two information blocks in the same first information are different; or wherein the one or more occasions are at least two occasions, types of first information field sets comprised in information blocks that correspond to a same terminal device and that are in the first information carried on the first channel sent on the at least two different occasions are different; and

a processing circuit, configured to determine, based on the first information received by the transceiver circuit, the information about detection performed on a second channel by the processing circuit,

wherein the first information further comprises a third information field that indicates a terminal device corresponding to each of the at least two information blocks and a location of each of the at least two information blocks.

17. The apparatus according to claim 16 , wherein each information block further comprises a second information field, and the second information field is used to indicate a type of the first information field set.

18. The apparatus according to claim 16 , wherein a quantity of bits in each first information field set is the same or a quantity of bits in each information block is the same.

19. The apparatus according to claim 16 , wherein when the first information field set is of a first type, the first information field set is used to indicate whether a terminal device performs detection on a second channel within one or more discontinuous reception (DRX) cycles after an occasion on which the first channel is detected.

20. The apparatus according to claim 16 , wherein when the first information field set is of a second type, the first information field set is used to indicate whether a terminal device stops detection on a second channel in a period of time, or whether a terminal device stops at least one timer in advance.