# US 2020/0288500 A1 · Communication device, program, 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 2020/0288500 A1 - Document ID: US20200288500A1 - Status: Published application - Kind: A1 - Application number: 16/763,997 - Filed: 2018-10-05 - Published: 2020-09-10 - Earliest claimed: 2017-11-24 - Assignees: Sony Corporation - Applicants: Sony Corporation - Inventors: Ryuichi HIRATA; Yuichi MORIOKA; Kosuke AIO - Web page: https://patentgrep.com/patent/US20200288500A1 ## CPC - H04W 74/0816: with collision avoidance - H04W 28/20: Negotiating bandwidth - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04W 76/15: Setup of multiple wireless link connections - Y02D 30/70: in wireless communication networks - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE ## Abstract [Problem] To provide a communication device that enable performing radio communication in a more efficient manner. [Solution] A communication device includes a first communication unit that performs frame exchange with another communication device using a first channel and based on the IEEE802.11 standard; a second communication unit that performs communication of data frames with the other communication device using a second channel which has a different frequency band than the first channel; and a control unit that controls communication of the data frames based on the result of the frame exchange. ## Claims ### Claim 1 A communication device comprising: a first communication unit that performs frame exchange with other communication device using a first channel and based on IEEE802.11 standard; a second communication unit that performs communication of data frame with the other communication device using a second channel which has different frequency band than the first channel; and a control unit that controls communication of the data frame based on result of the frame exchange. ### Claim 2 (depends on 1) The communication device according to claim 1, wherein the first communication unit performs transmission and reception of a first-type frame, which is a frame including transmission request information, and a second-type frame, which is a frame including transmission permission information, with the other communication device. ### Claim 3 (depends on 2) The communication device according to claim 2, wherein the first-type frame includes additional information related to the data frame. ### Claim 4 (depends on 3) The communication device according to claim 3, wherein the additional information represents information included in at least one of a “Format of Data” field, a “BSS Color of Data” field, a “Spatial Reuse of Data” field, a “Bandwidth of Data” field, and a “Duration of data” field. ### Claim 5 (depends on 2) The communication device according to claim 2, wherein the second-type frame includes transmission start timing for transmitting the data frame from the second communication unit to the other communication device. ### Claim 6 (depends on 1) The communication device according to claim 1, wherein, based on result of the frame exchange performed by the first communication unit, when it is determined that the data frame is transmittable to the other communication device, the control unit makes the second communication device transmit the data frame to the other communication device. ### Claim 7 (depends on 6) The communication device according to claim 6, wherein, after the first communication unit has transmitted a first-type frame to the other communication device, when a second-type frame is received from other communication device within predetermined period of time, the control unit makes the second communication unit transmit the data frame to the other communication device. ### Claim 8 (depends on 6) The communication device according to claim 6, wherein, when the first communication unit receives a first-type frame from other communication device, the control unit decides on transmission start timing and makes the first communication unit transmit a second-type frame including the transmission start timing to the other communication device. ### Claim 9 (depends on 1) The communication device according to claim 1, wherein the second communication unit receives the data frame transmitted from the other communication device, and based on instruction from the control unit, transmits the data frame to the other communication unit. ### Claim 10 (depends on 9) The communication device according to claim 9, wherein the second communication unit transmits the data frame that does not include additional information. ### Claim 11 (depends on 1) The communication device according to claim 1, wherein the first communication unit performs frame exchange with other communication device according to RTS/CTS frame exchange. ### Claim 12 A program that causes a computer to function as: a first communication unit that performs frame exchange with other communication device using a first channel and based on IEEE802.11 standard; a second communication unit that performs communication of data frame with the other communication device using a second channel which has different frequency band than the first channel; and a control unit that controls communication of the data frame based on result of the frame exchange. ### Claim 13 A communication method implemented in a processor, comprising: performing frame exchange with other communication device using a first channel and based on IEEE802.11 standard; performing communication of data frame with the other communication device using a second channel which has different frequency band than the first channel; and controlling communication of the data frame based on result of the frame exchange.