# US 12,224,862 B2 · Communication apparatus, control method, and storage medium > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,224,862 B2 - Document ID: US12224862B2 - Status: Granted - Kind: B2 - Application number: 17/880,494 - Filed: 2022-08-03 - Published: 2023-01-26 - Granted: 2025-02-11 - Earliest claimed: 2020-02-07 - Assignees: Canon Kabushiki Kaisha - Applicants: Canon Kabushiki Kaisha - Inventors: Hirohiko Inohiza - Web page: https://patentgrep.com/patent/US12224862B2 ## CPC - H04L 1/08: by repeating transmission, e.g. Verdan system {(H04L1/1858 and H04L1/189 take precedence)} - H04L 1/1887: {Scheduling and prioritising arrangements} - H04L 1/1812: Hybrid protocols; Hybrid automatic repeat request [HARQ] - H04L 1/1896: {ARQ related signaling} - H04W 74/0816: with collision avoidance - H04W 84/12: WLAN [Wireless Local Area Networks] - 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 Data including a plurality of blocks is received from a communication apparatus 102. A communication time of retransmission data which is a part of the received data and which is to be retransmitted by the communication apparatus 102 and a communication time of a response signal to be transmitted by the communication apparatus 103 are acquired. The response signal in which a communication reservation time is set is transmitted wherein the communication reservation time includes the communication time of the retransmission data and the communication time of the response signal. ## Claims ### Claim 1 A communication apparatus comprising: reception means configured to receive data from another communication apparatus; acquisition means configured to acquire a communication time of retransmission data which is a part of the data received by the reception means and which is to be retransmitted by the other communication apparatus and a communication time of a first response signal to be transmitted in response to the data received by the reception means; and transmission means for transmitting the first response signal in which a communication reservation time is set, the communication reservation time including the communication time of the retransmission data and the communication time of the first response signal which are acquired by the acquisition means. ### Claim 2 (depends on 1) The communication apparatus according to claim 1, further comprising determination means configured to determine a reception state of the data received by the reception means, wherein the acquisition means acquires a communication time of the retransmission data that is a part of the data received by the reception means and is determined by the determination means as not having been normally received. ### Claim 3 (depends on 2) The communication apparatus according to claim 2, wherein the first response signal transmitted by the transmission means includes information indicating the reception state of at least a part of the data determined by the determination means. ### Claim 4 (depends on 1) The communication apparatus according to claim 1, wherein the acquisition means further acquires a communication time of a second response signal transmitted by the communication apparatus in response to the retransmission data retransmitted by the other communication apparatus, and the communication reservation time includes the communication time of the retransmission data, the communication time of the first response signal, and the communication time of the second response signal. ### Claim 5 (depends on 1) The communication apparatus according to claim 1, further comprising processing means configured to correct an error in the data received by the reception means by combining the retransmission data transmitted by the other communication apparatus and the data received by the reception means. ### Claim 6 (depends on 1) The communication apparatus according to claim 1, wherein the transmission means sets a value based on the communication reservation time in at least one of a TXOP (Transmission Opportunity) field of a PHY (Physical Layer) header and a Duration field of a MAC (Medium Access Control) header of the first response signal. ### Claim 7 (depends on 1) The communication apparatus according to claim 1, wherein the acquisition means acquires the communication time of the retransmission data by using a coding rate and a modulation method used for transmitting the retransmission data. ### Claim 8 (depends on 7) The communication apparatus according to claim 7, wherein the coding rate and the modulation method used for transmitting the retransmission data are the coding rate and the modulation method used for transmitting the data received by the reception means. ### Claim 9 (depends on 1) The communication apparatus according to claim 1, wherein the first response signal transmitted by the transmission means is an ACK (ACKnowledgement) frame. ### Claim 10 (depends on 1) The communication apparatus according to claim 1, wherein the first response signal transmitted by the transmission means is a NACK (Negative ACKnowledgement) frame. ### Claim 11 (depends on 1) The communication apparatus according to claim 1, wherein the reception means receives the data including a plurality of HARQ (Hybrid Automatic Repeat reQuest) blocks from the other communication apparatus via communication according to an IEEE802.11be standard, and the transmission means transmits the first response signal via communication according to the IEEE802.11be standard. ### Claim 12 A method for controlling a communication apparatus, comprising: receiving data from another communication apparatus; acquiring a communication time of retransmission data which is a part of the received data and which is to be retransmitted by the other communication apparatus and a communication time of a response signal to be transmitted in response to the received data; and transmitting the response signal in which a communication reservation time is set, the communication reservation time including the communication time of the retransmission data and the acquired communication time of the response signal. ### Claim 13 A non-transitory computer-readable storage medium storing a computer-executable program for causing a computer to execute a method for controlling a communication apparatus, the method comprising: receiving data from another communication apparatus; acquiring a communication time of retransmission data which is a part of the received data and which is to be retransmitted by the other communication apparatus and a communication time of a response signal to be transmitted in response to the received data; and transmitting the response signal in which a communication reservation time is set, the communication reservation time including the communication time of the retransmission data and the acquired communication time of the response signal.