# US 2019/0357212 A1 · Methods for transmitting and receiving uplink data and apparatuses thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0357212 A1 - Document ID: US20190357212A1 - Status: Published application - Kind: A1 - Application number: 16/529,789 - Filed: 2019-08-02 - Published: 2019-11-21 - Earliest claimed: 2016-04-27 - Assignees: Kt Corporation - Applicants: Kt Corporation - Inventors: Kyujin PARK; Woo-jin CHOI - Web page: https://patentgrep.com/patent/US20190357212A1 ## CPC - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04L 5/001: {the frequencies being arranged in component carriers} - 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 16/14: Spectrum sharing arrangements {between different networks} - H04W 72/1268: of uplink data flows - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04W 76/15: Setup of multiple wireless link connections - 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 84/042: {Public Land Mobile systems, e.g. cellular systems} - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract The present disclosure relates to a method and an apparatus for uplink data scheduling of a cell using an unlicensed spectrum. The method may include configuring carrier aggregation including a secondary cell (SCell) using an unlicensed spectrum, receiving downlink control information including subframe allocation information for transmitting uplink data in the secondary cell from a base station, and transmitting the uplink data through a plurality of consecutive subframes based on the subframe allocation information. ## Claims ### Claim at position 1 1-15. (canceled) ### Claim 16 A method for transmitting uplink data by a user equipment, the method comprising: configuring carrier aggregation including a secondary cell which is using an unlicensed spectrum; receiving, by the user equipment, downlink control information including subframe allocation information for transmitting uplink data in the secondary cell, from a base station; and transmitting the uplink data through a plurality of consecutive subframes of the secondary cell based on the subframe allocation information, wherein the subframe allocation information comprises i) offset information for determination of a subframe in which the uplink data starts to be transmitted and ii) duration information indicating the number of subframes in which the uplink data is transmitted, wherein the offset information is configured to an information area of 4 bits in the downlink control information and indicates one of values from 0 to 15. ### Claim 17 (depends on 16) The method of claim 16, wherein the subframe in which the uplink data starts to be transmitted is determined as n+4+the offset information, when a subframe number in which the downlink control information is received is n, where n is an integer number greater than 0. ### Claim 18 (depends on 16) The method of claim 16, wherein the duration information is configured to an information area of 1 bit or 2 bits in the downlink control information based on maximum information, and the maximum information indicates a largest number of the plurality of consecutive subframes of the secondary cell. ### Claim 19 (depends on 18) The method of claim 18, further comprising: receiving the maximum information indicating the largest number of the plurality of consecutive subframes of the secondary cell through a high layer signaling before receiving the downlink control information. ### Claim 20 (depends on 19) The method of claim 19, wherein the maximum information is configured to one of values from 2 to 4, and a size of information area of the duration information is determined to 1 bit if the maximum information is 2, and the size of information area of the duration information is determined to 2 bits if the maximum information is one of 3 or 4. ### Claim 21 A method for receiving uplink data by a base station, the method comprising: controlling carrier aggregation configuration of a user equipment including a secondary cell which is using an unlicensed spectrum; transmitting, by the base station to the user equipment, downlink control information including subframe allocation information for transmitting uplink data in the secondary cell; and receiving the uplink data transmitted through a plurality of consecutive subframes of the secondary cell based on the subframe allocation information, wherein the subframe allocation information comprises i) offset information for determination of a subframe in which the uplink data starts to be transmitted and ii) duration information indicating the number of subframes in which the uplink data is transmitted, wherein the offset information is configured to an information area of 4 bits in the downlink control information and indicates one of values from 0 to 15. ### Claim 22 (depends on 21) The method of claim 21, wherein the subframe in which the uplink data starts to be transmitted is determined as n+4+the offset information, when a subframe number in which the downlink control information is received is n, where n is an integer number greater than 0. ### Claim 23 (depends on 21) The method of claim 21, wherein the duration information is configured to an information area of 1 bit or 2 bits in the downlink control information based on maximum information, and the maximum information indicates a largest number of the plurality of consecutive subframes of the secondary cell. ### Claim 24 (depends on 23) The method of claim 23, further comprising: transmitting the maximum information indicating the largest number of the plurality of consecutive subframes of the secondary cell through a high layer signaling to the user equipment before transmitting the downlink control information. ### Claim 25 (depends on 24) The method of claim 24, wherein the maximum information is configured to one of values from 2 to 4, and a size of information area of the duration information is determined to 1 bit if the maximum information is 2, and the size of information area of the duration information is determined to 2 bits if the maximum information is one of 3 or 4. ### Claim 26 A user equipment for transmitting uplink data, the user equipment comprising: a controller configured to configure carrier aggregation including a secondary cell which is using an unlicensed spectrum; a receiver configured to receive downlink control information including subframe allocation information for transmitting a uplink data in the secondary cell, from a base station; and a transmitter configured to transmit the uplink data through a plurality of consecutive subframes of the secondary cell based on the subframe allocation information, wherein the subframe allocation information comprises i) offset information for determination of a subframe in which the uplink data starts to be transmitted and ii) duration information indicating the number of subframes in which the uplink data is transmitted, wherein the offset information is configured to an information area of 4 bits in the downlink control information and indicates one of values from 0 to 15. ### Claim 27 (depends on 26) The user equipment of claim 26, wherein the subframe in which the uplink data starts to be transmitted is determined as n+4+the offset information, when a subframe number in which the downlink control information is received is n, where n is an integer number greater than 0. ### Claim 28 (depends on 26) The method of claim 26, wherein the duration information is configured to an information area of 1 bit or 2 bits in the downlink control information based on maximum information, and the maximum information indicates a largest number of the plurality of consecutive subframes of the secondary cell. ### Claim 29 (depends on 28) The user equipment of claim 28, wherein the receiver receives the maximum information indicating the largest number of the plurality of consecutive subframes of the secondary cell through a high layer signaling. ### Claim 30 (depends on 29) The user equipment of claim 29, wherein the maximum information is configured to one of values from 2 to 4, and a size of information area of the duration information is determined to 1 bit if the maximum information is 2, and the size of information area of the duration information is determined to 2 bits if the maximum information is one of 3 or 4.