Method for configuring transmission direction of time-frequency resource, and apparatus

1. A method, comprising:

receiving, by a terminal device, higher layer configuration signaling;

receiving, by the terminal device, a first type of physical downlink control channel (PDCCH) from a first access network device, wherein the first type of PDCCH comprises first downlink control information (DCI), the first DCI comprises at least one information block, each information block of the at least one information block comprises configuration information of a transmission direction of at least one resource unit, the at least one resource unit comprises at least one of a frequency domain unit, a time domain unit, or a space domain unit, and the higher layer configuration signaling comprises a parameter of a start resource location of the each information block;

obtaining, by the terminal device, the each information block based on the parameter of the start resource location; and

performing, by the terminal device, data transmission based on the each information block.

2. The method of claim 1 , wherein the time domain unit comprises at least one of a slot, a subframe, or an OFDM symbol.

3. The method of claim 1 , further comprising:

receiving, by the terminal device, information related to effective time of the configuration information via higher layer signaling.

4. The method of claim 3 , wherein the information related to the effective time of the configuration information comprises at least one of the following information: an effect start moment or effective duration.

5. The method of claim 1 , wherein the first type of PDCCH is a group common PDCCH.

6. The method of claim 1 , wherein the configuration information of the transmission direction of the at least one resource unit indicates configuration information of the transmission direction within a continuous time period, and the continuous time period comprises a plurality of time domain units.

7. The method of claim 1 , wherein the first DCI is scrambled by using a first radio network temporary identifier (RNTI).

8. The method of claim 1 , wherein the frequency domain unit comprises at least one of a frequency band, a sub-band, or a carrier.

9. The method of claim 1 , wherein the transmission direction comprises a downlink direction or an uplink direction.

10. An apparatus, comprising:

at least one processor; and

a memory coupled to the at least one processor and configured to store programming instructions that, when executed by the at least one processor, cause the apparatus to:

receive higher layer configuration signaling;

receive a first type of physical downlink control channel (PDCCH) from a first access network device, wherein the first type of PDCCH comprises first downlink control information (DCI), the first DCI comprises at least one information block, each information block of the at least one information block comprises configuration information of a transmission direction of at least one resource unit, the at least one resource unit comprises at least one of a frequency domain unit, a time domain unit, or a space domain unit, and the higher layer configuration signaling comprises a parameter of a start resource location of the each information block;

obtain the each information block based on the parameter of the start resource location; and

perform data transmission based on the each information block.

11. The apparatus of claim 10 , wherein the time domain unit comprises at least one of a slot, a subframe, or an OFDM symbol.

12. The apparatus of claim 10 , wherein the memory is further configured to store programming instructions that, when executed by the at least one processor, cause the apparatus to:

receive information related to effective time of the configuration information via higher layer signaling.

13. The apparatus of claim 12 , wherein the information related to the effective time of the configuration information comprises at least one of the following information: an effect start moment or effective duration.

14. The apparatus of claim 10 , wherein the configuration information of the transmission direction of the at least one resource unit indicates configuration information of the transmission direction within a continuous time period, the continuous time period comprises a plurality of time domain units.

15. The apparatus of claim 10 , wherein the first DCI is scrambled by using a first radio network temporary identifier (RNTI).

16. The apparatus of claim 10 , wherein the frequency domain unit comprises at least one of a frequency band, a sub-band, or a carrier.

17. The apparatus of claim 10 , wherein the transmission direction comprises a downlink direction or an uplink direction.

18. A method, comprising:

sending, by a first access network device, higher layer configuration signaling; and

sending, by the first access network device, a first type of physical downlink control channel (PDCCH), wherein the first type of PDCCH comprises first downlink control information (DCI), the first DCI comprises at least one information block, each information block of the at least one information block comprises configuration information of a transmission direction of at least one resource unit, the at least one resource unit comprises at least one of a frequency domain unit, a time domain unit, or a space domain unit, and the higher layer configuration signaling comprises a parameter of a start resource location of the each information block, wherein the each information block is obtained based on the parameter of the start resource location.

19. The method of claim 18 , further comprising:

sending, by the first access network device, information related to effective time of the configuration information via higher layer signaling.

20. The method of claim 18 , wherein the configuration information of the transmission direction of the at least one resource unit indicates configuration information of the transmission direction within a continuous time period, and the continuous time period comprises a plurality of time domain units.

21. The method of claim 18 , wherein the information related to the effective time of the configuration information comprises at least one of the following information: an effect start moment or effective duration.

22. An apparatus, comprising:

at least one processor; and

a memory coupled to the at least one processor and configured to store programming instructions that, when executed by the at least one processor, cause the apparatus to:

send higher layer configuration signaling; and

send a first type of physical downlink control channel (PDCCH), wherein the first type of PDCCH comprises first downlink control information (DCI), the first DCI comprises at least one information block, each information block of the at least one information block comprises configuration information of a transmission direction of at least one resource unit, the at least one resource unit comprises at least one of a frequency domain unit, a time domain unit, or a space domain unit, and the higher layer configuration signaling comprises a parameter of a start resource location of the each information block, wherein the each information block is obtained based on the parameter of the start resource location.

23. The apparatus of claim 22 , wherein the memory is further configured to store programming instructions that, when executed by the at least one processor, cause the apparatus to:

send information related to effective time of the configuration information via higher layer signaling.

24. The apparatus of claim 22 , wherein the configuration information of the transmission direction of the at least one resource unit indicates configuration information of the transmission direction within a continuous time period, and the continuous time period comprises a plurality of time domain units.

25. The apparatus of claim 22 , wherein the information related to the effective time of the configuration information comprises at least one of the following information: an effect start moment or effective duration.