# US 11,115,969 B2 · Downlink control information transmission method and apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,115,969 B2 - Document ID: US11115969B2 - Status: Granted - Kind: B2 - Application number: 16/537,207 - Filed: 2019-08-09 - Published: 2019-11-28 - Granted: 2021-09-07 - Earliest claimed: 2017-02-10 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Shulan Feng; Lixia Xue - Web page: https://patentgrep.com/patent/US11115969B2 ## CPC - H04L 5/0041: {Frequency-non-contiguous} - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04B 7/12: Frequency diversity - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04W 72/04: Wireless resource allocation - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04W 72/12: Wireless traffic scheduling - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04B: TRANSMISSION ## Abstract The embodiment of the disclosure provides a downlink control information transmission method and apparatus, where the method includes: determining a first resource set based on M resource subsets included in target resources, 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, M is an integer, and M≥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 inconsecutive in frequency domain, N≥2, wherein one control channel bearing resource unit includes a plurality of resource element groups (REGs); and receiving downlink control information on the first resource set. ## Claims ### Claim 1 A method, comprising: determining, by a terminal device, 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 receiving, by the terminal device, downlink control information on the first resource set. ### Claim 2 (depends on 1) The method according to claim 1, wherein the target resources comprise at least one time domain element, and one control channel bearing resource unit in time domain corresponds to one time domain element. ### Claim 3 (depends on 1) The method according to claim 1, wherein a frequency domain bandwidth occupied by the M resource subsets is less than or equal to a bandwidth of the target resources. ### Claim 4 (depends on 1) The method according to claim 1, wherein the method comprises: determining, by the terminal device, a mapping relationship, wherein the mapping relationship indicates a correspondence between the downlink control information and the first resource set; and the determining a first resource set based on M resource subsets comprises: determining, by the terminal device, the first resource set corresponding to the downlink control information. ### Claim 5 (depends on 1) The method according to claim 1, wherein the REs of the at least two REGs included in each control channel bearing resource unit are consecutive in frequency domain. ### Claim 6 (depends on 1) The method according to claim 1, wherein the N control channel bearing resource units carry reference signals which are configured to demodulate the downlink control information. ### Claim 7 (depends on 1) The method according to claim 1, wherein subcarriers of the REG are consecutive. ### Claim 8 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. ### Claim 9 (depends on 8) The apparatus according to claim 8, wherein the target resources comprise at least one time domain element, and one control channel bearing resource unit in time domain corresponds to one time domain element. ### Claim 10 (depends on 8) The apparatus according to claim 8, wherein a frequency domain bandwidth occupied by the M resource subsets is less than or equal to a bandwidth of the target resources. ### Claim 11 (depends on 8) The apparatus according to claim 8, wherein the program including the instructions to: determine a mapping relationship, wherein the mapping relationship indicates a correspondence between the downlink control information and the first resource set; and determine the first resource set corresponding to the downlink control information. ### Claim 12 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. ### Claim 13 (depends on 12) The terminal device according to claim 12, wherein the target resources comprise at least one time domain element, and one control channel bearing resource unit in time domain corresponds to one time domain element. ### Claim 14 (depends on 12) The terminal device according to claim 12, wherein a frequency domain bandwidth occupied by the M resource subsets is less than or equal to a bandwidth of the target resources. ### Claim 15 (depends on 12) The terminal device according to claim 12, wherein the processor configured to determine a mapping relationship, wherein the mapping relationship indicates a correspondence between the downlink control information and the first resource set; and determine the first resource set corresponding to the downlink control information. ### Claim 16 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. ### Claim 17 (depends on 16) The medium according to claim 16, wherein the target resources comprise at least one time domain element, and one control channel bearing resource unit in time domain corresponds to one time domain element. ### Claim 18 (depends on 16) The medium according to claim 16, wherein a frequency domain bandwidth occupied by the M resource subsets is less than or equal to a bandwidth of the target resources. ### Claim 19 (depends on 16) The medium according to claim 16, wherein the processor configured to determine a mapping relationship, wherein the mapping relationship indicates a correspondence between the downlink control information and the first resource set; and determine the first resource set corresponding to the downlink control information.