Information sending method and apparatus and information receiving method and apparatus

A method, comprising:

• sending, by a network device in a first time unit, a first reference signal to a terminal device, wherein the first reference signal corresponds to first downlink control information, and the first downlink control information schedules a first information block;
• and
• receiving, by the network device, on a first resource corresponding to the first time unit, first feedback information from the terminal device, wherein the first feedback information indicates that the terminal device failed to receive the first downlink control information in the first time unit, and wherein:
• information bits are received on the first resource, and a first status of the information bits indicates the first feedback information;
• a second status of the information bits indicates second feedback information, the second feedback information indicates a transmission parameter adjustment value, and the transmission parameter adjustment value is determined by the terminal device according to a second reference signal received in the first time unit;
• a third status of the information bits indicates third feedback information, the third feedback information indicates that the terminal device correctly decoded the first information block received in a time unit m-s, the first time unit is a time unit m, m and s are positive integers, and m is greater than or equal to s;
• and
• receiving, by the network device on the first resource corresponding to the first time unit, the first feedback information sent by the terminal device comprises:
• receiving, by the network device on the first resource, the information bits having the first status.

An apparatus, comprising:

• at least one processor;
• and
• a non-transitory computer-readable storage medium coupled to the at least one processor and storing programming instructions for execution by the at least one processor, wherein the programming instructions instruct the at least one processor to:
• receive, in a first time unit, a first reference signal sent by a network device, wherein the first reference signal corresponds to first downlink control information, and the first downlink control information is used to schedule a first information block;
• determine, in response to receiving the first reference signal and not receiving the first downlink control information in the first time unit, that receiving of the first downlink control information in the first time unit fails;
• and
• send, on a first resource corresponding to the first time unit, first feedback information to the network device, wherein the first feedback information indicates that the receiving of the first downlink control information fails.

An apparatus, comprising:

• at least one processor;
• and
• a non-transitory computer-readable storage medium coupled to the at least one processor and storing programming instructions for execution by the at least one processor, wherein the programming instructions instruct the at least one processor to:
• send, in a first time unit, first reference signal to a terminal device, wherein the first reference signal corresponds to first downlink control information, and the first downlink control information is used to schedule a first information block;
• and
• receive, on a first resource corresponding to the first time unit, first feedback information sent by the terminal device, wherein the first feedback information indicates that receiving of the first downlink control information by the terminal device fails, and wherein:
• the first resource is used to receive at least two information bits, and a first status of the at least two information bits is used to indicate the first feedback information;
• a second status of the at least two information bits is used to indicate second feedback information, the second feedback information is used to indicate a transmission parameter adjustment value, and the transmission parameter adjustment value is determined by the terminal device according to a second reference signal received in the first time unit;
• a third status of the at least two information bits is used to indicate third feedback information, the third feedback information is used to indicate that the terminal device correctly decodes the first information block received in a time unit m-s, the first time unit is a time unit m, m and s are positive integers, and m is greater than or equal to s;
• and
• the at least two information bits having the first status are sent on the first resource.