Information configuration method, data receiving method, and device

A terminal device, comprising:

• a processor;
• a memory coupled to the processor, the memory comprising instructions that, when executed by the processor, cause the terminal device to:
• store information that is about a first resource set group of a physical downlink control channel set and sent by a first network device to the terminal device, and store information that is about a second resource set group of a physical downlink control channel for retransmission and sent by the first network device to the terminal device;
• receive at least one physical downlink control channel according to the information that is about the first resource set group;
• acquire first control information carried on the at least one physical downlink control channel;
• receive downlink data according to scheduling information that is of the downlink data and comprised in the first control information, wherein the at least one physical downlink control channel is a physical downlink control channel in at least one subset of the physical downlink control channel set;
• and
• detect, in the second resource set group corresponding to the information that is about the second resource set group, wherein the physical downlink control channel for retransmission corresponding to the downlink data;
• wherein the information that is about the second resource set group comprises a correspondence, and the correspondence is a correspondence between the physical downlink control channel in the at least one subset and the second resource set group, or the correspondence is a correspondence between the subset of the physical downlink control channel set and the second resource set group;
• and
• before detecting, in the second resource set group, the physical downlink control channel for retransmission corresponding to the downlink data, determine, according to the correspondence and the at least one physical downlink control channel, the second resource set group corresponding to retransmission of the downlink data.