Method for transmitting uplink signal, terminal and network device

A terminal device, comprising:

• at least one processor;
• at least one transceiver;
• and
• at least one memory including program code;
• wherein the at least one memory and the program code are configured to, with the at least one processor, cause the terminal device to perform:
• receiving resource configuration information carried by a Radio Resource Control (RRC) message, wherein the resource configuration information is used to indicate a plurality of resources configured for zero-power Demodulation Reference Signal (DMRS);
• receiving activation information carried by Downlink Control Information (DCI), wherein the activation information is used to indicate:
• whether to enable the zero-power DMRS;
• and
• selecting a resource occupied by the enabled zero-power DMRS in the plurality of resources configured for the zero-power DMRS indicated by the resource configuration information;
• and
• determining the resource occupied by the zero-power DMRS based on the resource configuration information and the activation information;
• wherein the resource occupied by the zero-power DMRS is not used for sending uplink data, and the resource occupied by the zero-power DMRS is not used for sending non-zero-power DMRS.

A network device, comprising:

• at least one processor;
• at least one transceiver;
• and
• at least one memory including program code;
• wherein the at least one memory and the program code are configured to, with the at least one processor, cause the network device to perform:
• sending resource configuration information carried by a Radio Resource Control (RRC) message to a terminal device, wherein the resource configuration information is used to indicate a plurality of resources configured for zero-power Demodulation Reference Signal (DMRS);
• and
• sending activation information carried by Downlink Control Information (DCI) to the terminal device, wherein the activation information is used to indicate:
• whether to enable the zero-power DMRS;
• and
• selecting a resource occupied by the enabled zero-power DMRS in the plurality of resources configured for the zero-power DMRS indicated by the resource configuration information;
• wherein the resource occupied by the zero-power DMRS is not used for receiving uplink data, and the resource occupied by the zero-power DMRS is not used for receiving non-zero-power DMRS.