Semi-persistent scheduling method, network device, and terminal device

A network device, comprising:

• a processor configured to:
• determine a semi-persistent scheduling (SPS) configuration parameter, wherein the SPS configuration parameter comprises an SPS period length, symbol information, an SPS activation command, and a first period offset, wherein the SPS activation command is used to indicate a system frame number and a subframe number of a first time-frequency resource available for sending or receiving SPS data, and the symbol information is used to indicate a location of a symbol that is in a subframe and that is occupied by the first time-frequency resource, and determine resource locations of time-frequency resources available for sending or receiving the SPS data based on the SPS period length, the symbol information, and the SPS activation command;
• and
• a transceiver configured to send the SPS configuration parameter to a terminal device;
• wherein the processor is further configured to:
• when a time-frequency resource available for sending or receiving the SPS data is partially or completely occupied, calculate an offset time-frequency resource based on the first period offset;
• wherein the transceiver is further configured to receive or send the SPS data on the offset time-frequency resource.

A terminal device, comprising:

• a transceiver configured to receive a semi-persistent scheduling (SPS) configuration parameter sent by a network device, wherein the SPS configuration parameter comprises an SPS period length, symbol information, an SPS activation command, and a first period offset, wherein the SPS activation command is used to indicate a system frame number and a subframe number of a first time-frequency resource available for sending or receiving SPS data, and the symbol information is used to indicate a location of a symbol that is in a subframe and that is occupied by the first time-frequency resource;
• and
• a processor configured to determine resource locations of time-frequency resources available for sending or receiving the SPS data based on the SPS period length, the symbol information, and the SPS activation command;
• the processor is further configured to:
• when a time-frequency resource available for sending or receiving the SPS data is partially or completely occupied, calculate an offset time-frequency resource based on the first period offset;
• and
• the transceiver is further configured to receive or send the SPS data on the offset time-frequency resource.