# US 2019/0174516 A1 · Communication apparatus, communication method, and recording medium > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0174516 A1 - Document ID: US20190174516A1 - Status: Published application - Kind: A1 - Application number: 16/322,130 - Filed: 2017-07-05 - Published: 2019-06-06 - Earliest claimed: 2016-08-10 - Assignees: Sony Corporation - Applicants: Sony Corporation - Inventors: Kazuyuki SHIMEZAWA - Web page: https://patentgrep.com/patent/US20190174516A1 ## CPC - H04W 72/1263: Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows - H04W 28/06: Optimizing {the usage of the radio link}, e.g. header compression, information sizing {, discarding information (system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365)} - H04W 56/0045: {compensating for timing error by altering transmission time} - H04W 72/04: Wireless resource allocation - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract [ Object] To provide a mechanism that enables flexible design in relation to communication timing. [ Solution] A communication apparatus including: a communication control unit that controls a transmission timing of a sub frame that is transmitted to another communication apparatus, which is a communication counterpart; and a setting unit that sets a control mode of the communication control unit to a first mode or a second mode. The communication control unit controls the transmission timing on the basis of a first parameter that is unique to the communication apparatus and a second parameter that is unique to the other communication apparatus in a case in which the first mode is set and controls the transmission tuning on the basis of the second parameter in a case in which the second mode is set. ## Claims ### Claim 1 A communication apparatus comprising: a communication control unit that controls a transmission timing of a sub frame that is transmitted to another communication apparatus, which is a communication counterpart; and a setting unit that sets a control mode of the communication control unit to a first mode or a second mode, wherein the communication control unit controls the transmission timing on a basis of a first parameter that is unique to the communication apparatus and a second parameter that is unique to the other communication apparatus in a case in which the first mode is set and controls the transmission timing on a basis of the second parameter in a case in which the second mode is set. ### Claim 2 (depends on 1) The communication apparatus according to claim 1, wherein the first parameter is dynamically set while the second parameter is statically or quasi-statically set. ### Claim 3 (depends on 1) The communication apparatus according to claim 1, wherein the second parameter is set in accordance with a type of a frame configuration. ### Claim 4 (depends on 3) The communication apparatus according to claim 3, wherein the second parameter is set to zero in a case in which a sub frame is not a self-contained sub frame and is set to a value that is not zero in a case in which the sub frame is a self-contained sub frame. ### Claim 5 (depends on 4) The communication apparatus according to claim 4, wherein the second parameter is set in accordance with a symbol length of a control channel of an uplink and/or a processing time for generation in a case in which the sub frame is a self-contained sub frame. ### Claim 6 (depends on 1) The communication apparatus according to claim 1, wherein a maximum value that the first parameter can be is decided in accordance with a type of a frame configuration. ### Claim 7 (depends on 1) The communication apparatus according to claim 1, wherein the communication control unit communicates with the other communication apparatus using a non-orthogonal access scheme in the second mode. ### Claim 8 (depends on 1) The communication apparatus according to claim 1, wherein the communication control unit resets or continuously uses the first parameter used in the first mode in a case in which the control mode is switched from the first mode to the second mode. ### Claim 9 (depends on 1) The communication apparatus according to claim 1, wherein the communication control unit controls a time required before setting of the control mode becomes valid. ### Claim 10 (depends on 1) The communication apparatus according to claim 1, wherein the communication control unit does not use, for uplink transmission, a part or all of at least any of two continuous uplink sub frames that have overlapping portions in a case in which the control mode is switched from the second mode to the first mode. ### Claim 11 (depends on 1) The communication apparatus according to claim 1, wherein the control mode is set to the first mode by default and is set to the second mode in a case in which a predetermined condition is satisfied. ### Claim 12 (depends on 1) The communication apparatus according to claim 1, wherein the control mode is set in accordance with a radio resource control (RRC) state. ### Claim 13 (depends on 1) The communication apparatus according to claim 1, wherein the control mode is set in accordance with a duplex scheme. ### Claim 14 (depends on 1) The communication apparatus according to claim 1, wherein the control mode is set in accordance with a sub carrier interval. ### Claim 15 (depends on 1) The communication apparatus according to claim 1, wherein the control mode is set in accordance with a transmission time interval (TTI) length. ### Claim 16 A communication apparatus comprising: a setting unit that sets a control mode of a transmission timing of a sub frame that is transmitted from another communication apparatus, which is a communication counterpart, to the communication apparatus in the other communication apparatus to a first mode or a second mode; and a communication control unit that controls communication with the other communication apparatus on a basis of the control mode set by the setting unit, wherein the communication control unit performs reception processing of a sub frame transmitted at a transmission timing based on a first parameter that is provided as a notification uniquely to the other communication apparatus and a second parameter that is decided in accordance with setting unique to the communication apparatus in the first mode, and the communication control unit performs reception processing of a sub frame transmitted at a transmission timing based on the second parameter in the second mode, and the setting unit provides a notification of information indicating the control mode to be set and the first parameter in a case in which the first mode is to be set to the other communication apparatus. ### Claim 17 A communication method that is executed by a processor of a communication apparatus, the method comprising: controlling a transmission timing of a sub frame that is transmitted to another communication apparatus, which is a communication counterpart; and setting a control mode to a first mode or a second mode, wherein the controlling of the transmission timing includes controlling the transmission timing on a basis of a first parameter that is unique to the communication apparatus and a second parameter that is unique to the other communication apparatus in a case in which the first mode is set, and controlling the transmission timing on a basis of the second parameter in a case in which the second mode is set. ### Claim 18 A communication method that is executed by a processor of a communication apparatus, the method comprising: setting a control mode of a transmission timing of a sub frame that is transmitted from another communication apparatus, which is a communication counterpart, to the communication apparatus in the other communication apparatus to a first mode or a second mode; and controlling communication with the other communication apparatus on a basis of the set control mode, wherein the controlling of the communication includes performing reception processing of a sub frame that is transmitted at a transmission timing based on a first parameter that is provided as a notification uniquely to the other communication apparatus and a second parameter that is decided in accordance with setting unique to the communication apparatus in the first mode, and performing reception processing of a sub frame that is transmitted at a transmission timing based on the second parameter in the second mode, and the setting of the control mode includes providing a notification of information that indicates the control mode to be set and the first parameter in a case in which the first mode is to be set to the other communication apparatus. ### Claim 19 A recording medium having a program recorded thereon, the program causing a computer to function as a communication apparatus comprising: a communication control unit that controls a transmission timing of a sub frame that is transmitted to another communication apparatus, which is a communication counterpart; and a setting unit that sets a control mode of the communication control unit to a first mode or a second mode, wherein the communication control unit controls the transmission timing on a basis of a first parameter that is unique to the communication apparatus and a second parameter that is unique to the other communication apparatus in a case in which the first mode is set and controls the transmission timing on a basis of the second parameter in a case in which the second mode is set. ### Claim 20 A recording medium having a program recorded thereon, the program causing a computer to function as a communication apparatus comprising: a setting unit that sets a control mode of a transmission timing of a sub frame that is transmitted from another communication apparatus, which is a communication counterpart, to the communication apparatus in the other communication apparatus to a first mode or a second mode; and a communication control unit that controls communication with the other communication apparatus on a basis of the control mode set by the setting unit, wherein the communication control unit performs reception processing of a sub frame transmitted at a transmission timing based on a first parameter that is provided as a notification uniquely to the other communication apparatus and a second parameter that is decided in accordance with setting unique to the communication apparatus in the first mode, and the communication control unit performs reception processing of a sub frame transmitted at a transmission timing based on the second parameter in the second mode, and the setting unit provides a notification of information indicating the control mode to be set and the first parameter in a case in which the first mode is to be set to the other communication apparatus.