# US 12,016,029 B2 · Method, apparatus and terminal for determining number of times of blind inspections > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,016,029 B2 - Document ID: US12016029B2 - Status: Granted - Kind: B2 - Application number: 17/244,339 - Filed: 2021-04-29 - Published: 2021-08-12 - Granted: 2024-06-18 - Earliest claimed: 2018-10-30 - Assignees: Guangdong Oppo Mobile Telecommunications Corp., Ltd. - Applicants: Guangdong Oppo Mobile Telecommunications Corp., Ltd. - Inventors: Cong Shi; Shukun Wang; Jia Shen; Zhenshan Zhao; Zhihua Shi; Huei-Ming Lin - Web page: https://patentgrep.com/patent/US12016029B2 ## CPC - H04L 5/001: {the frequencies being arranged in component carriers} - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - 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 72/1268: of uplink data flows - H04L 1/0038: {Blind format detection (for detection of modulation format H04L27/0012)} - H04W 8/24: Transfer of terminal data - H04W 72/27: between access points - 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 Embodiments of the present application provide a method, an apparatus and a terminal for determining the number of times of blind detections, which includes: blind-detecting, by a terminal, a downlink control channel in a first search space of a first cell, where the downlink control channel is configured to schedule a second cell, and the number of times of blind detections of the downlink control channel are determined based on configuration information of a second search space of the second cell and/or configuration information of the first search space of the first cell. ## Claims ### Claim 1 A method for determining a number of times of blind detections, comprising: blind-detecting, by a terminal, a downlink control channel in a first search space of a first cell, wherein the downlink control channel is configured to schedule a second cell, and a number of times of blind detections of the downlink control channel are determined according to first indication information based on configuration information of a second search space of the second cell or configuration information of the first search space of the first cell, wherein the first indication information is used to indicate whether the terminal supports cross-carrier scheduling and whether the terminal supports configuration that different carriers have different number of times of blind detections in the cross-carrier scheduling. ### Claim 2 (depends on 1) The method according to claim 1, wherein the first search space is a search space on a current active bandwidth part (BWP) of the first cell, and the second search space is a search space on a current active BWP of the second cell; and wherein there is a corresponding relationship between the first search space and the second search space. ### Claim 3 (depends on 2) The method according to claim 2, wherein the corresponding relationship between the first search space and the second search space is determined by the following manners: mapping a search space on the current active BWP of the second cell to a search space on the current active BWP of the first cell according to an ascending order of identifiers; or, mapping the search space on the current active BWP of the second cell to the search space on the current active BWP of the first cell according to a descending order of the identifiers; or, mapping the search space on the current active BWP of the second cell to the search space on the current active BWP of the first cell according to a result of modulo operation on the identifiers; or, mapping the search space on the current active BWP of the second cell to the search space on the current active BWP of the first cell when whether their identifiers are the same; or, mapping the search space on the current active BWP of the second cell to the search space on the current active BWP of the first cell according to an identifier corresponding relationship of network configuration. ### Claim 4 (depends on 2) The method according to claim 2, wherein a number of search spaces on the current active BWP of the first cell is greater than or equal to the number of search spaces on the current active BWP of the second cell. ### Claim 5 (depends on 2) The method according to claim 2, wherein the corresponding relationship between the first search space and the second search space is determined by the following manner: mapping a first control resource set corresponding to the search spaces on the current active BWP of the second cell to a second control resource set on the current active BWP of the first cell, wherein the first control resource set and the second control resource set have the same identifier; wherein an identifier of the search space on the current active BWP of the second cell is at least the same as an identifier of a search space associated with the second control resource set; or, at least one parameter of the search space on the current active BWP of the second cell is applied to at least one search space associated with the second control resource set. ### Claim 6 (depends on 1) The method according to claim 1, further comprising: reporting, by the terminal, the first indication information to the network. ### Claim 7 (depends on 6) The method according to claim 6, wherein the first indication information is user equipment (UE) capability information of the terminal, and the UE capability information of the terminal indicates whether the terminal supports the cross-carrier scheduling and the configuration that different carriers have different number of times of blind detections in the cross-carrier scheduling; or wherein the first indication information is access stratum (AS) version information of the terminal, and the AS version information of the terminal is used for the network to determine whether the terminal supports the cross-carrier scheduling and the configuration that different carriers have different number of times of blind detections in the cross-carrier scheduling. ### Claim 8 (depends on 6) The method according to claim 6, wherein when the first indication information indicates that the terminal supports the cross-carrier scheduling and the configuration that different carriers have different number of times of blind detections in the cross-carrier scheduling, determining, by the terminal, the number of times of blind detections of the downlink control channel based on the configuration information of the second search space of the second cell; wherein the second cell is configured with at least one BWP, each BWP is configured with at least one search space, each search space is configured with at least one aggregation level, and each aggregation level corresponds to one number of times of blind detections. ### Claim 9 (depends on 6) The method according to claim 6, wherein when the first indication information indicates that the terminal does not support the cross-carrier scheduling and the configuration that different carriers have different number of times of blind detections in the cross-carrier scheduling, determining, by the terminal, the number of times of blind detections of the downlink control channel based on the configuration information of the first search space of the first cell. ### Claim 10 (depends on 9) The method according to claim 9, wherein the first cell is configured with at least one BWP, each BWP is configured with at least one search space, each search space is configured with at least one aggregation level, and each aggregation level corresponds to one number of times of blind detections. ### Claim 11 An apparatus for determining a number of times of blind detections, comprising: a processor and a memory, wherein the memory is configured to store a computer program, the processor when executing the computer program, being configured to: blind-detect a downlink control channel in a first search space of a first cell, wherein the downlink control channel is configured to schedule a second cell, and a number of times of blind detections of the downlink control channel are determined according to first indication information based on configuration information of a second search space of the second cell or configuration information of the first search space of the first cell, wherein the first indication information is used to indicate whether the terminal supports cross-carrier scheduling and whether the terminal supports configuration that different carriers have different number of times of blind detections in the cross-carrier scheduling. ### Claim 12 (depends on 11) The apparatus according to claim 11, wherein the first search space is a search space on a current active bandwidth part (BWP) of the first cell, and the second search space is a search space on a current active BWP of the second cell; and wherein there is a corresponding relationship between the first search space and the second search space. ### Claim 13 (depends on 12) The apparatus according to claim 12, wherein the corresponding relationship between the first search space and the second search space is determined by the following manners: mapping a search space on the current active BWP of the second cell to a search space on the current active BWP of the first cell according to an ascending order of identifiers; or, mapping the search space on the current active BWP of the second cell to the search space on the current active BWP of the first cell according to a descending order of the identifiers; or, mapping the search space on the current active BWP of the second cell to the search space on the current active BWP of the first cell according to a result of modulo operation on the identifiers; or, mapping the search space on the current active BWP of the second cell to the search space on the current active BWP of the first cell when whether their identifiers are the same; or, mapping the search space on the current active BWP of the second cell to the search space on the current active BWP of the first cell according to an identifier corresponding relationship of network configuration. ### Claim 14 (depends on 12) The apparatus according to claim 12, wherein a number of search spaces on the current active BWP of the first cell is greater than or equal to the number of search spaces on the current active BWP of the second cell. ### Claim 15 (depends on 12) The apparatus according to claim 12, wherein the corresponding relationship between the first search space and the second search space is determined by the following manner: mapping a first control resource set corresponding to search spaces on the current active BWP of the second cell to a second control resource set on the current active BWP of the first cell, wherein the first control resource set and the second control resource set have the same identifier; wherein an identifier of the search space on the current active BWP of the second cell is at least the same as an identifier of a search space associated with the second control resource set; or, at least one parameter of the search space on the current active BWP of the second cell is applied to at least one search space associated with the second control resource set. ### Claim 16 (depends on 11) The apparatus according to claim 11, further comprising: a transceiver, wherein the processor is configured to control the transceiver to report the first indication information to the network. ### Claim 17 (depends on 16) The apparatus according to claim 16, wherein the first indication information is user equipment (UE) capability information of the terminal, and the UE capability information of the terminal indicates whether the terminal supports the cross-carrier scheduling and the configuration that different carriers have different number of times of blind detections in the cross-carrier scheduling; or wherein the first indication information is access stratum (AS) version information of the terminal, and the AS version information of the terminal is used for the network to determine whether the terminal supports the cross-carrier scheduling and the configuration that different carriers have different number of times of blind detections in the cross-carrier scheduling. ### Claim 18 (depends on 16) The apparatus according to claim 16, wherein when the first indication information indicates that the terminal supports the cross-carrier scheduling and the configuration that different carriers have different number of times of blind detections in the cross-carrier scheduling, the processor is configured to determine the number of times of blind detections of the downlink control channel based on the configuration information of the second search space of the second cell; wherein the second cell is configured with at least one BWP, each BWP is configured with at least one search space, each search space is configured with at least one aggregation level, and each aggregation level corresponds to one number of times of blind detections. ### Claim 19 (depends on 16) The apparatus according to claim 16, wherein when the first indication information indicates that the terminal does not support the cross-carrier scheduling and the configuration that different carriers have different number of times of blind detections in the cross-carrier scheduling, the processor is configured to determine the number of times of blind detections of the downlink control channel based on the configuration information of the first search space of the first cell. ### Claim 20 (depends on 19) The apparatus according to claim 19, wherein the first cell is configured with at least one BWP, each BWP is configured with at least one search space, each search space is configured with at least one aggregation level, and each aggregation level corresponds to one number of times of blind detections.