Wireless communication method, terminal device, and network device implementing dynamic cross-slot scheduling

1. A wireless communication method performed by a terminal device, the method comprising:

selecting, based on a first parameter, a value set from a first value set and a second value set that are of slot offsets and that are configured by a network device, wherein all slot offsets in the first value set are greater than a first threshold, and at least one slot offset in the second value set is equal to the first threshold; and

receiving downlink control information (DCI) sent by the network device, wherein a slot offset carried in the DCI belongs to the selected value set, and the slot offset is used to indicate an offset in a quantity of slots of a physical downlink shared channel (PDSCH) scheduled by the DCI relative to the DCI,

wherein the first parameter is a quantity of receive antennas currently used by the terminal device, and the selecting, based on a first parameter, a value set from a first value set and a second value set that are of slot offsets and that are configured by a network device comprises:

selecting the first value set when the quantity of receive antennas currently used by the terminal device is a first quantity of antennas; and

selecting the second value set when the quantity of receive antennas currently used by the terminal device is a second quantity of antennas, wherein the first quantity of antennas is less than the second quantity of antennas.

2. The method according to claim 1 , wherein when the selected value set is the first value set, a scheduling manner of the PDSCH is cross-slot scheduling; and

when the selected value set is the second value set, a scheduling manner of the PDSCH is same-slot scheduling or cross-slot scheduling.

3. A wireless communication method performed by a terminal device, the method comprising:

selecting, based on a first parameter, a value set from a first value set and a second value set that are of slot offsets and that are configured by a network device, wherein all slot offsets in the first value set are greater than a first threshold, and at least one slot offset in the second value set is equal to the first threshold; and

receiving downlink control information (DCI) sent by the network device, wherein a slot offset carried in the DCI belongs to the selected value set, and the slot offset is used to indicate an offset in a quantity of slots of a physical downlink shared channel (PDSCH) scheduled by the DCI relative to the DCI, wherein:

a) the first parameter is a periodicity at which the terminal device detects the search space set, and the selecting, based on a first parameter, a value set from a first value set and a second value set that are of slot offsets and that are configured by a network device comprises:

selecting the first value set when the periodicity at which the terminal device detects the search space set is a first detection periodicity; and

selecting the second value set when the periodicity at which the terminal device detects the search space set is a second detection periodicity, wherein the first detection periodicity is greater than the second detection periodicity,

or

b) the first parameter is a type of the timer run by the terminal device, the terminal device is within a discontinuous reception (DRX) active time, and the selecting, based on a first parameter, a value set from a first value set and a second value set that are of slot offsets and that are configured by a network device comprises:

selecting the first value set when the terminal device runs only an on duration timer:

selecting the second value set when the terminal device runs a same-slot scheduling timer, wherein the same-slot scheduling timer is started or restarted when the terminal device detects a physical downlink control channel (PDCCH); and

selecting the first value set when the same-slot scheduling timer expires.

4. The method according to claim 3 , wherein when the selected value set is the first value set, a scheduling manner of the PDSCH is cross-slot scheduling; and

when the selected value set is the second value set, a scheduling manner of the PDSCH is same-slot scheduling or cross-slot scheduling.

5. An apparatus, comprising:

at least one non-transitory storage medium including executable instructions; and

at least one processor; wherein the executable instructions, when executed by the at least one processor, cause the apparatus to implement:

selecting, based on a first parameter, a value set from a first value set and a second value set that are of slot offsets and that are configured by a network device, wherein all slot offsets in the first value set are greater than a first threshold, and at least one slot offset in the second value set is equal to the first threshold; and

receiving downlink control information (DCI) sent by the network device, wherein a slot offset carried in the DCI belongs to the selected value set, and the slot offset is used to indicate an offset in a quantity of slots of a physical downlink shared channel (PDSCH) scheduled by the DCI relative to the DCI,

wherein the first parameter is a quantity of receive antennas currently used by the terminal device, and the selecting, based on a first parameter, a value set from a first value set and a second value set comprises:

selecting the first value set when the quantity of receive antennas currently used by the terminal device is a first quantity of antennas; and

selecting the second value set when the quantity of receive antennas currently used by the terminal device is a second quantity of antennas, wherein the first quantity of antennas is less than the second quantity of antennas.

6. The apparatus according to claim 5 , wherein when the selected value set is the first value set, a scheduling manner of the PDSCH is cross-slot scheduling; and

when the selected value set is the second value set, a scheduling manner of the PDSCH is same-slot scheduling or cross-slot scheduling.