Sidelink information transmission method, communications device, and network device

A sidelink information transmission method, comprising:

• receiving, by a first communications device, first indication information from a network device, wherein the first indication information indicates a first resource, wherein the first resource is a resource set used to transmit sidelink information, wherein the sidelink information comprises sidelink control information and sidelink data, wherein the first resource comprises at least one time unit in a time domain and at least one subchannel in a frequency domain, wherein the time unit comprises at least one symbol, wherein the subchannel comprises at least one resource block, and wherein the first indication information indicates a time-domain resource and a frequency-domain resource of a resource that is in the first resource and that is used to transmit the sidelink control information;
• receiving, by the first communications device, first control information from the network device, wherein the first control information indicates a second resource, wherein the second resource belongs to the first resource, wherein the second resource comprises a third resource and a fourth resource, and wherein the third resource is indicated by the first by the first indication information;
• sending, by the first communications device, to a second communications device, on the third resource, the sidelink control information, wherein the third resource comprises at least one symbol in the time domain and at least one resource block in the frequency domain;
• and
• sending, by the first communications device, to the second communications device, on the fourth resource and based on the sidelink control information, the sidelink data, wherein the fourth resource comprises at least one symbol in the time domain and at least one resource block in the frequency domain.

A network device, comprising:

• a sending unit;
• one or more processors;
• and
• a non-transitory computer readable medium storing a program for execution by the one or more processors, the program having instructions to:
• cause the sending unit to send first indication information to a first communications device, wherein the first indication information indicates a first resource, wherein the first resource is a resource set used to transmit sidelink information, wherein the sidelink information comprises sidelink control information and sidelink data, wherein the first resource comprises at least one time unit in a time domain and at least one subchannel in a frequency domain, wherein the time unit comprises at least one symbol, wherein the subchannel comprises at least one resource block, and wherein the first indication information indicates a time-domain resource and a frequency-domain resource of a resource that is in the first resource and that is used to transmit the sidelink control information;
• and
• cause the sending unit to send first control information to the first communications device, wherein the first control information indicates a second resource, wherein the second resource belongs to the first resource, wherein the second resource comprises a third resource and a fourth resource, wherein the third resource is used by the first communications device to send the sidelink control information to a second communications device, wherein the third resource comprises at least one symbol in the time domain and at least one resource block in the frequency domain, wherein the third resource is indicated by the first indication information, and wherein the fourth resource is used by the first communications device to send the sidelink data to the second communications device based on the sidelink control information.

A first communications device, comprising:

• a sending unit;
• a receiving unit;
• one or more processors;
• and
• a non-transitory computer readable medium storing a program for execution by the one or more processors, the program having instructions to:
• receive, through the receiving unit, first indication information from a network device, wherein the first indication information indicates a first resource, wherein the first resource is a resource set used to transmit sidelink information, wherein the sidelink information comprises sidelink control information and sidelink data, wherein the first resource comprises at least one time unit in a time domain and at least one subchannel in a frequency domain, wherein the time unit comprises at least one symbol, wherein the subchannel comprises at least one resource block, wherein the first indication information indicates a time-domain resource and a frequency-domain resource of a resource that is in the first resource and that is used to transmit the sidelink control information;
• receive, through the receiving unit, first control information from the network device, wherein the first control information indicates a second resource, wherein the second resource belongs to the first resource, wherein the second resource comprises a third resource and a fourth resource, and wherein the third resource is indicated by the first indication information;
• cause the sending unit to send, on the third resource, sidelink control information to a second communications device, wherein the third resource comprises at least one symbol in the time domain and at least one resource block in the frequency domain;
• and
• cause the sending unit to send, on the fourth resource, to the second communications device, based on the sidelink control information, sidelink data, wherein the fourth resource comprises at least one symbol in the time domain and at least one resource block in the frequency domain.