Downlink control information transmission method and apparatus

A downlink control information transmission apparatus, wherein the apparatus comprises:

• a processor;
• and
• a non-transitory computer-readable storage medium coupled to the processor storing programming instructions for execution by the processor to prompt the apparatus to:
• determine a first resource set based on M resource subsets into which target resources are divided,
• wherein the target resources are consecutive in frequency domain, at least two of the M resource subsets do not overlap in frequency domain, and each resource subset comprises at least one control channel bearing resource unit, M is an integer equal to or greater than 2;
• the first resource set comprises N control channel bearing resource units, at least two of the N control channel bearing resource units belong to different resource subsets, and at least two of the N control channel bearing resource units are not consecutive in frequency domain, N≥2, the N control channel bearing resource units belong to a part or all of the M resource subsets;
• wherein each of the N control channel bearing resource units includes at least two resource element groups (REGs), at least two REGs included in each control channel bearing resource unit are consecutive in frequency domain, each REG comprises a plurality of resource elements (REs);
• and
• receive downlink control information on the first resource set.

A terminal device, wherein the terminal device comprises:

• a processor configured to determine a first resource set based on M resource subsets into which target resources are divided,
• wherein the target resources are consecutive in frequency domain, and wherein at least two of the M resource subsets do not overlap in frequency domain, and each resource subset comprises at least one control channel bearing resource unit, where M is an integer equal to or greater than 2;
• the first resource set comprises N control channel bearing resource units, at least two of the N control channel bearing resource units belong to different resource subsets, and at least two of the N control channel bearing resource units are not consecutive in frequency domain, N≥2, the N control channel bearing resource units belong to a part or all of the M resource subsets;
• wherein each of the N control channel bearing resource units includes at least two resource element groups (REGs), at least two REGs included in each control channel bearing resource unit are consecutive in frequency domain, each REG further comprises a plurality of resource elements (REs);
• and
• a receiver configured to receive downlink control information on the first resource set.

A non-transitory computer-readable storage medium comprising instructions which, when executed by a processor in a terminal device, cause the processor to:

• determine a first resource set based on M resource subsets into which target resources are divided,
• wherein the target resources are consecutive in frequency domain, at least two of the M resource subsets do not overlap in frequency domain, and each resource subset comprises at least one control channel bearing resource unit, M is an integer equal to or greater than 2;
• the first resource set comprises N control channel bearing resource units, at least two of the N control channel bearing resource units belong to different resource subsets, and at least two of the N control channel bearing resource units are not consecutive in frequency domain, N≥2, the N control channel bearing resource units belong to a part or all of the M resource subsets;
• wherein each of the N control channel bearing resource units includes at least two resource element groups (REGs), at least two REGs included in each control channel bearing resource unit are consecutive in frequency domain, each REG comprises a plurality of resource elements (REs);
• and
• receive downlink control information on the first resource set.