# US 11,445,493 B2 · Method and apparatus for transceiving wireless signal in wireless communication system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,445,493 B2 - Document ID: US11445493B2 - Status: Granted - Kind: B2 - Application number: 16/932,474 - Filed: 2020-07-17 - Published: 2020-11-05 - Granted: 2022-09-13 - Earliest claimed: 2014-07-31 - Assignees: LG Electronics Inc. - Applicants: LG Electronics Inc. - Inventors: Suckchel Yang; Joonkui Ahn; Seungmin Lee; Hanbyul Seo - Web page: https://patentgrep.com/patent/US11445493B2 ## CPC - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04B 7/26: at least one of which is mobile - H04L 5/001: {the frequencies being arranged in component carriers} - H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)} - H04L 5/005: {of common pilots, i.e. pilots destined for multiple users or terminals} - H04L 5/0092: {Indication of how the channel is divided} - H04L 27/0006: {Assessment of spectral gaps suitable for allocating digitally modulated signals, e.g. for carrier allocation in cognitive radio (for spectrum sharing between different networks H04W16/14)} - H04W 24/08: Testing, {supervising or monitoring} using real traffic - H04W 52/143: {Downlink power control} - H04W 52/146: {Uplink power control} - H04W 52/40: during macro-diversity or soft handoff - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH} - H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals} - H04W 52/242: {taking into account path loss} - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04B: TRANSMISSION - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract The present invention relates to a wireless communication system, specifically to a method comprising the steps of: configuring a PCell of a licensed band and an SCell of an unlicensed band for a base station; receiving resource configuration information concerning the SCell by means of a physical downlink control channel (PDCCH) of the PCell; configuring a subframe set within a temporary time duration on the SCell on the basis of the resource configuration information; and communicating with the base station by means of the subframe set temporarily configured on the SCell, and to an apparatus for the method. ## Claims ### Claim 1 A method of performing a communication by an apparatus in a wireless communication system, the method comprising: transmitting a downlink control information (DCI) for a plurality of unlicensed frequency bands, wherein the DCI includes a plurality of information related with channel occupancies of the plurality of unlicensed frequency bands; and performing the communication in a contiguous time period of one of the plurality of unlicensed frequency bands, associated with the DCI, wherein the plurality of information have a one-to-one mapping with the plurality of unlicensed frequency bands, and each of the plurality of information indicates whether a corresponding one of the plurality of unlicensed frequency bands is available or not until an end of the contiguous time period. ### Claim 2 (depends on 1) The method of claim 1, further comprising: transmitting a preamble signal, wherein the starting index of the contiguous time period is associated with a sequence index of the preamble signal, and each sequence index is associated with an index of a respective time unit. ### Claim 3 (depends on 2) The method of claim 2, wherein the starting index of the contiguous time period is associated with a resource unit used for the transmission of the preamble signal, and each resource unit is associated with an index of a respective time unit. ### Claim 4 (depends on 3) The method of claim 3, wherein the resource unit includes a symbol or a resource element. ### Claim 5 (depends on 1) The method of claim 1, wherein the contiguous time period includes consecutive time units. ### Claim 6 An apparatus for use in a wireless communication system, the apparatus comprising: a memory; and a processor connected to the memory, wherein the processor is configured to: transmit a downlink control information (DCI) for a plurality of unlicensed frequency bands, wherein the DCI includes a plurality of information related with channel occupancies of the plurality of unlicensed frequency bands, and perform a communication in a contiguous time period of one of the plurality of unlicensed frequency bands, associated with the DCI, wherein the plurality of information have a one-to-one mapping with the plurality of unlicensed frequency bands, and each of the plurality of information indicates whether a corresponding one of the plurality of unlicensed frequency bands is available or not until an end of the contiguous time period. ### Claim 7 (depends on 6) The apparatus of claim 6, wherein the processor is further configured to transmit a preamble signal, and wherein the starting index of the contiguous time period is associated with a sequence index of the preamble signal, and each sequence index is associated with an index of a respective time unit. ### Claim 8 (depends on 7) The apparatus of claim 7, wherein the starting index of the contiguous time period is associated with a resource unit used for the reception of the preamble signal, and each resource unit is associated with an index of a respective time unit. ### Claim 9 (depends on 8) The apparatus of claim 8, wherein the resource unit includes a symbol or a resource element. ### Claim 10 (depends on 6) The apparatus of claim 6, wherein the contiguous time period includes consecutive time units. ### Claim 11 (depends on 6) The apparatus of claim 6, further comprising: a radio frequency (RF) unit.