# US 2019/0174465 A1 · Base station, terminal, and communication method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0174465 A1 - Document ID: US20190174465A1 - Status: Published application - Kind: A1 - Application number: 16/097,794 - Filed: 2017-04-20 - Published: 2019-06-06 - Earliest claimed: 2016-05-20 - Assignees: Panasonic Intellectual Property Corporation of America - Applicants: Panasonic Intellectual Property Corporation of America - Inventors: Tetsuya YAMAMOTO; Ayako HORIUCHI; Takashi IWAI - Web page: https://patentgrep.com/patent/US20190174465A1 ## CPC - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - H04L 1/18: Automatic repetition systems, e.g. Van Duuren systems - H04L 1/1854: {Scheduling and prioritising arrangements} - H04L 1/1858: {Transmission or retransmission of more than one copy of acknowledgement message} - H04L 1/1861: {Physical mapping arrangements (for ACK signaling see also H04L5/0053)} - 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} - H04L 5/0055: {Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861)} - H04L 5/1469: {using time-sharing} - H04L 69/324: in the data link layer [OSI layer 2], e.g. HDLC - H04W 28/04: Error control - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04W 88/02: Terminal devices - H04W 88/08: Access point devices - 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 In a base station, a controller, when communicating with a terminal using a time unit including a downlink time resource for a downlink control signal, a downlink time resource assigned for downlink data by the downlink control signal, and a uplink time resource for a response signal for the downlink data, sets the amount of the uplink time resource used by the terminal for transmission of the response signal to be larger as the time unit is longer. ## Claims ### Claim at position 1 1-13. (canceled) ### Claim 14 A base station comprising: a controller, which, in operation, when communicating with a terminal using a time unit including a downlink time resource for a downlink control signal, a downlink time resource assigned for downlink data by the downlink control signal, and an uplink time resource for a response signal for the downlink data, sets the amount of the uplink time resource used by the terminal for transmission of the response signal to be larger as the time unit is longer; and a transmitter, which, in operation, transmits time unit information including the determined amount of the uplink time resource to the terminal. ### Claim 15 (depends on 14) The base station according to claim 14, comprising a receiver, which, in operation, receives the response signal for the downlink data in the time unit at a constant time interval from the terminal. ### Claim 16 (depends on 14) The base station according to claim 14, wherein the transmitter transmits, as the time unit information, information indicating the length of the time unit. ### Claim 17 (depends on 14) The base station according to claim 14, wherein the amount of the uplink time resource in each time unit is a fixed value. ### Claim 18 (depends on 14) The base station according to claim 14, wherein the transmitter transmits the time unit information by a cell-specific notification. ### Claim 19 (depends on 14) The base station according to claim 14, wherein the transmission transmits the time unit information by a radio access technology (RAT)-specific notification. ### Claim 20 (depends on 14) The base station according to claim 14, wherein the transmitter transmits the time unit information by a user equipment (UE)-specific notification. ### Claim 21 A terminal comprising: a receiver, which, in operation, when communicating with a base station using a time unit including a downlink time resource for a downlink control signal, a downlink time resource assigned for downlink data by the downlink control signal, and an uplink time resource for a response signal for the downlink data, receives time unit information related to the amount of the uplink time resource used for transmission of the response signal; and a signal assignment unit configured to assign the response signal to the uplink time resource indicated by the time unit information, wherein the amount of the uplink time resource is set to be larger as the time unit is longer. ### Claim 22 A communication method comprising: setting, when communicating with a terminal using a time unit including a downlink time resource for a downlink control signal, a downlink time resource assigned for downlink data by the downlink control signal, and an uplink time resource for a response signal for the downlink data, the amount of the uplink time resource used by the terminal for transmission of the response signal to be larger as the time unit is longer; and transmitting time unit information related to the determined amount of the uplink time resource to the terminal. ### Claim 23 (depends on 22) The communication method according to claim 22, comprising receiving the response signal for the downlink data in the time unit at a constant time interval from the terminal. ### Claim 24 (depends on 22) The communication method according to claim 22, wherein, as the time unit information, information indicating the length of the time unit is transmitted. ### Claim 25 (depends on 22) The communication method according to claim 22, wherein the amount of the uplink time resource in each time unit is a fixed value. ### Claim 26 (depends on 22) The communication method according to claim 22, wherein the time unit information is transmitted by a cell-specific notification. ### Claim 27 (depends on 22) The communication method according to claim 22, wherein the time unit information is transmitted by a radio access technology (RAT)-specific notification. ### Claim 28 (depends on 22) The communication method according to claim 22, wherein the time unit information is transmitted by a user equipment (UE)-specific notification. ### Claim 29 A communication method comprising: receiving, when communicating with a base station using a time unit including a downlink time resource for a downlink control signal, a downlink time resource assigned for downlink data by the downlink control signal, and an uplink time resource for a response signal for the downlink data, time unit information related to the amount of the uplink time resource used for transmission of the response signal; and assigning the response signal to the uplink time resource indicated by the time unit information, wherein the amount of the uplink time resource is set to be larger as the time unit is longer.