Communication method, communication apparatus, and system

A first terminal device, comprising:

• at least one processor;
• and
• a memory coupled to the at least one processor, the memory comprising instructions that, when executed by the at least one processor, cause the first terminal device to perform operations comprising:
• receiving downlink control information (DCI) from a network device, wherein the DCI comprises time domain resource information and frequency domain resource information, wherein the time domain resource information comprises time domain offset information, time domain start position information, and duration information, and the time domain resource information is used to determine a first time domain resource on which a first data channel is located, wherein the frequency domain resource information is used to determine frequency domain resources, the frequency domain resources comprise a first frequency domain resource on which the first data channel is located and a second frequency domain resource on which a second data channel is located, and the second data channel is located on a second time domain resource that is different from the first time domain resource on which the first data channel is located;
• and
• receiving, on the first time domain resource and the first frequency domain resource, a signal that is located on the first data channel and that is from the network device, wherein the first data channel is used by the first terminal device to communicate with the network device, and the second data channel is used by a second terminal device to communicate with the network device.

A network device, comprising:

• at least one processor;
• and
• a memory coupled to the at least one processor, the memory comprising instructions that, when executed by the processor, cause the network device to perform operations comprising:
• sending downlink control information (DCI) to a first terminal device, wherein the DCI comprises time domain resource information and frequency domain resource information, wherein the time domain resource information comprises time domain offset information, time domain start position information, and duration information, and the time domain resource information is used to determine a first time domain resource on which a first data channel is located, wherein the frequency domain resource information is used to determine frequency domain resources, the frequency domain resources comprise a first frequency domain resource on which the first data channel is located and a second frequency domain resource on which a second data channel is located, and the second data channel is located on a second time domain resource that is different from the first time domain resource on which the first data channel is located;
• and
• sending, on the first time domain resource and the first frequency domain resource, a signal located on the first data channel to the first terminal device, wherein the first data channel is used by the network device to communicate with the first terminal device, and the second data channel is used by the network device to communicate with a second terminal device.