Wireless communication method, first device, and second device

1 . A wireless communication method, comprising:

listening to, by a first device, control-channel candidates based on a first capability; wherein the first capability comprises the maximum value of the number of the control-channel candidates listened to on a service cell and/or the maximum value of the number of non-overlapping control-channel elements (CCE)s, the first capability is defined based on a first time domain element and/or a first subcarrier spacing, and the first time domain element has a length greater than a length of a time slot corresponding to the first subcarrier spacing;

the first time domain element comprises N first time elements, N is predefined or configured by a network device, and N is a positive integer,

in response to the first device being in an idle state, an inactive state, or an initial access phase, N is predefined and/or a starting position of the first time domain element is predefined;

in response to the first device being in a connected state, N is configured by the network device, and/or a starting position of the first time domain element is configured by the network device.

2 . The method according to claim 1 , wherein the first time elements comprises one of:

a plurality of time slots corresponding to the first subcarrier spacing, a first time slot group corresponding to the first subcarrier spacing, a plurality of symbols corresponding to the first subcarrier spacing, a first symbol group corresponding to the first subcarrier spacing, one or more time slots corresponding to a second subcarrier spacing, a first time slot group corresponding to the second subcarrier spacing, one or more symbols corresponding to the second subcarrier spacing, a first symbol group corresponding to the second subcarrier spacing, one or more subframes, subframe groups, and half frames.

3 . The method according to claim 1 , wherein the starting position of the first time domain element is predefined with reference to a wireless frame, and/or the starting position of the first time domain element is independently configured by the network device for the first device.

4 . The method according to claim 1 , wherein the starting position of the first time domain element or the first time domain element has an association relationship with at least one of a time slot identification, a subframe identification, and a wireless frame identification.

5 . The method according to claim 1 , wherein the first time domain element comprises at least one listening timing, the at least one listening timing comprises a first listening timing, and the first listening timing is associated with at least one search space set listened to by the first device;

wherein the at least one listening timing comprises one listening timing, and a length of the one listening timing is the M second time elements; or

the at least one listening timing comprises a plurality of listening timings, and a sum of lengths of the plurality of listening timings is the M second time elements;

wherein M is predefined or configured by a network device, and M is a positive integer.

6 . The method according to claim 5 , wherein each of the second time elements comprises one of: one or more time slot corresponding to the first subcarrier spacing, a second time slot group corresponding to the first subcarrier spacing, a plurality of symbols corresponding to the first subcarrier spacing, a second symbol group corresponding to the first subcarrier spacing, one or more time slots corresponding to a third subcarrier spacing, a second time slot group corresponding to the third subcarrier spacing, one or more symbols corresponding to the third subcarrier spacing, a second symbol group corresponding to the third subcarrier spacing, and one or more subframes.

7 . The method according to claim 5 , wherein the starting position of the first listening timing is the same with a starting position of the first time domain element; and/or, the starting position of the first listening timing is independently configured by the network device for the first device.

8 . The method according to claim 5 , wherein the first listening timing is associated with at least one search space set corresponding to a first search space set type and listened to by the first device.

9 . The method according to claim 8 , wherein the at least one search space set corresponding to the first search space set type comprises at least one of: a Type 3 Physical Downlink Control Channel (PDCCH) Common Search Space (CSS) (Type3-PDCCH CSS) set, a UE-specific Search Space (USS) set, and a Type 1-PDCCH CSS set configured by a specific Radio Resource Control (RRC) signaling; and/or

the at least one search space set corresponding to the second search space set type comprises at least one of: a Type0-PDCCH CSS set, a Type0A-PDCCH CSS set, a Type2-PDCCH CSS set, and a Type1-PDCCH CSS set configured by a common RRC signaling.

10 . The method according to claim 8 , wherein the at least one search space set corresponding to the first search space set type comprises a USS set; and/or

the at least one search space set corresponding to the second search space set type comprises at least one of: a Type0-PDCCH CSS set, a Type0A-PDCCH CSS set, a Type1-PDCCH CSS set, a Type2-PDCCH CSS set, and a Type3-PDCCH CSS set.

11 . The method according to claim 5 , wherein the first listening time is associated with at least one search space set corresponding to a second search space set type and listened to by the first device.

12 . The method according to claim 5 , wherein the first listening timing is associated with at least one search space set corresponding to a first search space set type and listened to by the first device, the at least one listening timing further comprises a second listening timing, the second listening timing is associated with at least one search space set corresponding to a second search space set type and listened to by the first device, and the first listening timing and the second listening timing comprise one case of:

both the starting position of the first listening timing and a starting position of the second listening timing being predefined;

the starting position of the first listening timing being predefined and the starting position of the second listening timing being configured by the network device;

the starting position of the first listening timing being configured by the network device and the starting position of the second listening timing being predefined; and

both the starting position of the first listening timing and the starting position of the second listening timing being configured by the network device.

13 . The method according to claim 1 , wherein the first capability is defined based on (N, M, μ), N denotes the number of first time elements in the first time domain element, M denotes the number of second time elements in a first listening timing in the first time domain element, and u denotes the first subcarrier spacing.

14 . The method according to claim 1 , wherein the first time domain element comprises a second time domain element and a third time domain element, and the second time domain element and the third time domain element comprise at least one case of:

the number of first time elements in the second time domain element being the same with the number of first time elements in the third time domain element;

the number of the first time elements in the second time domain element being different from the number of the first time elements in the third time domain element;

a time domain length corresponding to the second time domain element being the same with a time domain length corresponding to the third time domain element; and

the time domain length corresponding to the second time domain element being different from the time domain length corresponding to the third time domain element.

15 . The method according to claim 1 , wherein the first time domain element comprises a second time domain element and a third time domain element, and the second time domain element and the third time domain element comprise at least one case of:

the second time domain element corresponding to a fourth subcarrier spacing, the third time domain element corresponding to a fifth subcarrier spacing, and the fourth subcarrier spacing being different from the fifth subcarrier spacing;

the second time domain element corresponding to a first control information format, the third time domain element corresponding to a second control information format, and the first control information format being different from the second control information format;

the second time domain element corresponding to a first search space set configuration, the third time domain element corresponding to a second search space set configuration, and the first search space set configuration being different from the second search space set configuration; and

the second time domain element corresponding to the first capability, the third time domain element corresponding to a second capability, and the first capability and the second capability having different requirements.

16 . A terminal device, comprising:

a processor;

a memory, configured to store a computer program; and

a transceiver;

wherein the processor is configured to call and run the computer program stored in the memory to control the transceiver to implement:

listening to control-channel candidates based on a first capability; wherein the first capability comprises the maximum value of the number of the control-channel candidates listened to on a service cell and/or the maximum value of the number of non-overlapping control-channel elements (CCE)s, the first capability is defined based on a first time domain element and/or a first subcarrier spacing, and the first time domain element has a length greater than a length of a time slot corresponding to the first subcarrier spacing;

the first time domain element comprises N first time elements, N is predefined or configured by a network device, and N is a positive integer,

in response to the terminal device being in an idle state, an inactive state, or an initial access phase, N is predefined and/or a starting position of the first time domain element is predefined;

in response to the terminal device being in a connected state, N is configured by the network device, and/or a starting position of the first time domain element is configured by the network device.

17 . The terminal device according to claim 16 , wherein the first time elements comprises one of:

a plurality of time slots corresponding to the first subcarrier spacing, a first time slot group corresponding to the first subcarrier spacing, a plurality of symbols corresponding to the first subcarrier spacing, a first symbol group corresponding to the first subcarrier spacing, one or more time slots corresponding to a second subcarrier spacing, a first time slot group corresponding to the second subcarrier spacing, one or more symbols corresponding to the second subcarrier spacing, a first symbol group corresponding to the second subcarrier spacing, one or more subframes, subframe groups, and half frames.

18 . The terminal device according to claim 16 , wherein the starting position of the first time domain element is predefined with reference to a wireless frame, and/or the starting position of the first time domain element is independently configured by the network device for the terminal device.

19 . The terminal device according to claim 16 , wherein the starting position of the first time domain element or the first time domain element has an association relationship with at least one of a time slot identification, a subframe identification, and a wireless frame identification.

20 . A network device, comprising:

a processor;

a memory, configured to store a computer program; and

a transceiver;

wherein the processor is configured to call and run the computer program stored in the memory to control the transceiver to implement:

transmitting configuration information, wherein the configuration information is configured to configure at least one of:

the number of first time elements in a first time domain element, a first subcarrier spacing corresponding to the first time domain element, a starting position of the first time domain element, a second subcarrier spacing corresponding to the first time elements, the number of second time elements in a first listening timing in the first time domain element, a starting position of the first listening timing, and a third subcarrier spacing corresponding to the second time elements;

wherein the first time domain element and/or the first subcarrier spacing is configured to define a first capability, and the first capability comprises the maximum value of the number of control-channel candidates listened to on a service cell and/or the maximum value of the number of non-overlapping control-channel elements (CCE)s;

the first time domain element comprises N first time elements, N is predefined or configured by a network device, and N is a positive integer,

in response to a first device being in an idle state, an inactive state, or an initial access phase, N is predefined and/or a starting position of the first time domain element is predefined;

in response to the first device being in a connected state, N is configured by the network device, and/or a starting position of the first time domain element is configured by the network device.