# US 12,010,676 B2 · Method for determining frequency domain location of control resource set and related device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,010,676 B2 - Document ID: US12010676B2 - Status: Granted - Kind: B2 - Application number: 17/360,347 - Filed: 2021-06-28 - Published: 2021-10-21 - Granted: 2024-06-11 - Earliest claimed: 2018-12-29 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Fei Gao; Shujing Yu; Xu Zhang; Weihua Li - Web page: https://patentgrep.com/patent/US12010676B2 ## CPC - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04W 72/1263: Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows - H04L 1/1854: {Scheduling and prioritising arrangements} - H04L 1/1896: {ARQ related signaling} - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04W 72/0466: {the resource being a scrambling code} - H04W 72/20: Control channels or signalling for resource management - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04W 72/53: based on regulatory allocation policies - H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT} - H04L 5/0041: {Frequency-non-contiguous} - 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) ## Abstract A common CORESET determining method, an apparatus and a non-transitory computer-readable storage medium are provided. The method includes: receiving configuration information, wherein the configuration information indicates where a physical resource block occupied by a first common control resource set is located in a first downlink bandwidth part; determining a frequency domain resource of the first common control resource set based on a frequency domain resource of the first downlink bandwidth part and the physical resource block occupied by the first common control resource set within the first downlink bandwidth part; and monitoring a physical downlink control channel in the first common control resource set before the first downlink bandwidth part configured by a SIB1 takes effect to obtain scheduling control information. According to this application, complexity of determining a frequency domain location of the first control resource set can be reduced. ## Claims ### Claim 1 A method, comprising: receiving, by a terminal device, configuration information of a first common control resource set, wherein the configuration information indicates where a physical resource block occupied by the first common control resource set is located in a first downlink bandwidth part; determining, by the terminal device, a frequency domain resource of the first common control resource set based on a frequency domain resource of the first downlink bandwidth part and the physical resource block occupied by the first common control resource set within the first downlink bandwidth part; and monitoring, by the terminal device, a physical downlink control channel in the first common control resource set before the first downlink bandwidth part configured by system information block 1 (SIB1) takes effect, to obtain scheduling control information, wherein the first downlink bandwidth part configured by the SIB1 takes effect after a successful initial access of the terminal device. ### Claim 2 (depends on 1) The method according to claim 1, wherein the first downlink bandwidth part is different from an initial downlink bandwidth part defined by control resource set 0 (CORESET#0). ### Claim 3 (depends on 1) The method according to claim 1, wherein an initial downlink bandwidth part defined by control resource set 0 (CORESET #0) takes effect before successful initial access of the terminal device. ### Claim 4 (depends on 3) The method according to claim 3, wherein the successful initial access of the terminal device indicates one of the following occasions: an occasion on which the terminal device successfully receives an initially transmitted message 4 and sends an acknowledgement message to a network device; an occasion on which the terminal device successfully receives, after the terminal device successfully receives an initially transmitted message 4, downlink control information (DCI) scrambled by a cell radio network temporary identifier (C-RNTI); an occasion on which the terminal device successfully receives a retransmitted message 4 and sends an acknowledgement message to a network device; an occasion on which the terminal device successfully receives, after the terminal device successfully receives a retransmitted message 4, DCI scrambled by a C-RNTI; an occasion on which the terminal device successfully receives, after successfully receiving an initially transmitted message 4, configuration information indicating that DCI scrambled by a C-RNTI needs to be blindly detected; an occasion on which the terminal device successfully receives, after successfully receiving a retransmitted message 4, configuration information indicating that DCI scrambled by a C-RNTI needs to be blindly detected; or an occasion on which the terminal device switches from the initial downlink bandwidth part defined by using CORESET #0 to the first downlink bandwidth part configured by the SIB1 after successfully receiving an initially transmitted message 4 or a retransmitted message 4. ### Claim 5 (depends on 1) The method according to claim 1, wherein a start common resource block of the first common control resource set is determined based on a start common resource block of the first downlink bandwidth part and a start physical resource block occupied by the first common control resource set within the first downlink bandwidth part. ### Claim 6 (depends on 5) The method according to claim 5, wherein the start common resource block of the first downlink bandwidth part is determined based on a start physical resource block of the first downlink bandwidth part and a third offset. ### Claim 7 (depends on 1) The method according to claim 1, wherein an identifier of the first common control resource set is not 0. ### Claim 8 (depends on 1) The method according to claim 1, wherein the configuration information of the first common control resource set is received before successful initial access of the terminal device. ### Claim 9 (depends on 1) The method according to claim 1, wherein the scheduling control information is control information for scheduling a random access response, control information for scheduling a paging message, or control information for scheduling a system message. ### Claim 10 An apparatus, comprising: at least one storage medium including executable instructions; and at least one processor; wherein the executable instructions, when executed by the at least one processor, cause the apparatus to: receive configuration information of a first common control resource set, wherein the configuration information indicates where a physical resource block occupied by the first common control resource set is located in a first downlink bandwidth part; determine a frequency domain resource of the first common control resource set based on a frequency domain resource of the first downlink bandwidth part and the physical resource block occupied by the first common control resource set within the first downlink bandwidth part; and monitor a physical downlink control channel in the first common control resource set before the first downlink bandwidth part configured by system information block 1 (SIB1) takes effect, to obtain scheduling control information, wherein the first downlink bandwidth part configured by the SIB1 takes effect after a successful initial access of the terminal device. ### Claim 11 (depends on 10) The apparatus according to claim 10, wherein the first downlink bandwidth part is different from an initial downlink bandwidth part defined by control resource set 0 (CORESET #0). ### Claim 12 (depends on 10) The apparatus according to claim 10, wherein an initial downlink bandwidth part defined by control resource set 0 (CORESET#0) takes effect before successful initial access of the apparatus. ### Claim 13 (depends on 12) The apparatus according to claim 12, wherein the successful initial access of the apparatus indicates one of the following occasions: an occasion on which the apparatus successfully receives an initially transmitted message 4 and sends an acknowledgement message to a network device; an occasion on which the apparatus successfully receives, after the apparatus successfully receives an initially transmitted message 4, downlink control information (DCI) scrambled by a cell radio network temporary identifier (C-RNTI); an occasion on which the apparatus successfully receives a retransmitted message 4 and sends an acknowledgement message to a network device; an occasion on which the apparatus successfully receives, after the apparatus successfully receives a retransmitted message 4, DCI scrambled by a C-RNTI; an occasion on which the apparatus successfully receives, after successfully receiving an initially transmitted message 4, configuration information indicating that DCI scrambled by a C-RNTI needs to be blindly detected; an occasion on which the apparatus successfully receives, after successfully receiving a retransmitted message 4, configuration information indicating that DCI scrambled by a C-RNTI needs to be blindly detected; or an occasion on which the apparatus switches from the initial downlink bandwidth part defined by using CORESET #0 to the first downlink bandwidth part configured by the SIB1 after successfully receiving an initially transmitted message 4 or a retransmitted message 4. ### Claim 14 (depends on 10) The apparatus according to claim 10, wherein a start common resource block of the first common control resource set is determined based on a start common resource block of the first downlink bandwidth part and a start physical resource block occupied by the first common control resource set within the first downlink bandwidth part. ### Claim 15 (depends on 14) The apparatus according to claim 14, wherein the start common resource block of the first downlink bandwidth part is determined based on a start physical resource block of the first downlink bandwidth part and a third offset. ### Claim 16 (depends on 10) The apparatus according to claim 10, wherein an identifier of the first common control resource set is not 0. ### Claim 17 (depends on 10) The apparatus according to claim 10, wherein the configuration information of the first common control resource set is received before successful initial access of the apparatus. ### Claim 18 (depends on 10) The apparatus according to claim 10, wherein the scheduling control information is control information for scheduling a random access response, control information for scheduling a paging message, or control information for scheduling a system message. ### Claim 19 A non-transitory computer-readable storage medium comprising instructions which, when executed by a computer, cause the computer to carry out the following: receiving configuration information of a first common control resource set, wherein the configuration information indicates where a physical resource block occupied by the first common control resource set is located in a first downlink bandwidth part; determining a frequency domain resource of the first common control resource set based on a frequency domain resource of the first downlink bandwidth part and the physical resource block occupied by the first common control resource set within the first downlink bandwidth part; and monitoring a physical downlink control channel in the first common control resource set before the first downlink bandwidth part configured by system information block 1 (SIB1) takes effect, to obtain scheduling control information, wherein the first downlink bandwidth part configured by the SIB1 takes effect after a successful initial access of a terminal device. ### Claim 20 (depends on 19) The non-transitory computer-readable storage medium according to claim 19, wherein an initial downlink bandwidth part defined by control resource set 0 (CORESET #0) takes effect before successful initial access of a terminal device. ### Claim 21 (depends on 19) The non-transitory computer-readable storage medium according to claim 19, wherein a start common resource block of the first common control resource set is determined based on a start common resource block of the first downlink bandwidth part and a start physical resource block occupied by the first common control resource set within the first downlink bandwidth part.