Response information transmission method, communications device, and network device

A first communications device, comprising:

• at least one processor;
• and
• a memory storing instructions executable by the at least one processor, wherein the instructions, when executed by the at least one processor, instruct the at least one processor to:
• receive first indication information from a network device, wherein the first indication information indicates a first resource for sidelink communication, the first resource comprises x subframes, x is a positive integer larger than 1;
• send, in a subframe n, first data to a second communications device, wherein the subframe n belongs to the x subframes;
• receive second indication information from the network device, wherein the second indication information is used to determine a second resource for transmitting feedback information, wherein the second resource comprises y subframes, y is a positive integer, and the y subframes belong to the x subframes;
• and
• receive, in a subframe m, feedback information of the first data from the second communications device, wherein the subframe m belongs to the y subframes, the subframe m is a subframe that is after a subframe n+k and with a minimum sequence number in the y subframes, wherein the subframe n+k is a kth subframe after the subframe n, wherein k is predefined or is received by the first communications device from the network device, and wherein n, m, and k are all non-negative integers.

A feedback information sending method, comprising:

• receiving, by a second communications device, first indication information from a network device, wherein the first indication information indicates a first resource for sidelink communication, the first resource comprises x subframes, x is a positive integer larger than 1;
• receiving, by the second communications device in a subframe n, first data from a first communications device;
• receiving, by the second communications device, second indication information from the network device, wherein the second indication information is used to determine a second resource for transmitting feedback information, wherein the second resource comprises y subframes, y is a positive integer, and the y subframes belong to the x subframes;
• and
• sending, by the second communications device in a subframe m, feedback information of the first data to the first communications device, wherein the subframe m belongs to the y subframes, the subframe m is a subframe that is after a subframe n+k and with a minimum sequence number in the y subframes, wherein the subframe n+k is a kth subframe after the subframe n, wherein k is predefined or is received by the first communications device from the network device, and wherein n, m, and k are all non-negative integers.

A second communications device, comprising:

• at least one processor;
• and
• a memory storing instructions executable by the at least one processor, wherein the instructions, when executed by the at least one processor, instruct the at least one processor to:
• receive first indication information from a network device, wherein the first indication information indicates a first resource for sidelink communication, the first resource comprises x subframes, x is a positive integer larger than 1;
• receive, in a subframe n, first data from a first communications device;
• receive second indication information from the network device, wherein the second indication information is used to determine a second resource for transmitting feedback information, wherein the second resource comprises y subframes, y is a positive integer, and the y subframes belong to the x subframes;
• and
• send, in a subframe m, feedback information of the first data to the first communications device, wherein the subframe m belongs to the y subframes, the subframe m is a subframe that is after a subframe n+k and with a minimum sequence number in the y subframes of the second resource, wherein the subframe n+k is a kth subframe after the subframe n, wherein k is predefined or is received by the first communications device from the network device, and wherein n, m, and k are all non-negative integers.