# US 2018/0027508 A1 · Communication device, communication method and program > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0027508 A1 - Document ID: US20180027508A1 - Status: Published application - Kind: A1 - Application number: 15/548,014 - Filed: 2015-12-07 - Published: 2018-01-25 - Earliest claimed: 2015-03-06 - Assignees: Sony Corporation - Applicants: Sony Corporation - Inventors: Yusuke TANAKA; Yuichi MORIOKA - Web page: https://patentgrep.com/patent/US20180027508A1 ## CPC - H04W 52/36: with a discrete range or set of values, e.g. step size, ramping or offsets - H04W 16/28: using beam steering - H04W 52/245: {taking into account received signal strength} - H04W 52/28: using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non-transmission - H04W 52/281: {taking into account user or data type priority} - H04W 52/34: TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading - H04W 52/367: {Power values between minimum and maximum limits, e.g. dynamic range} - H04W 84/12: WLAN [Wireless Local Area Networks] - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract A communication method, program, and communication device that selects other communication devices capable of setting transmission power such that reception power falls within a predetermined range, from a plurality of other communication devices that perform multiplexing communication, and transmits a transmission power setting request indicating the transmission power to each of the other selected communication devices. ## Claims ### Claim 1 A communication device, comprising: circuitry configured to select other communication devices capable of setting transmission power such that reception power falls within a predetermined range, from a plurality of other communication devices that perform multiplexing communication; and a communication interface configured to transmit a transmission power setting request indicating the transmission power to each of the other communication devices selected by the circuitry. ### Claim 2 (depends on 1) The communication device according to claim 1, wherein the communication interface receives transmission power information indicating a transmission power range that is settable by each of the plurality of other communication devices, the circuitry performs the selection such that the transmission power indicated by a transmission power setting request generated on the basis of channel information in communication with the plurality of other communication devices falls within the transmission power range indicated by the transmission power information received by the communication interface. ### Claim 3 (depends on 2) The communication device according to claim 2, wherein the transmission power information includes information indicating a transmission power range corresponding to information indicating a frequency bandwidth, a modulation scheme and a coding scheme, or a channel identifier used in each of the plurality of other communication devices. ### Claim 4 (depends on 2) The communication device according to claim 2, wherein the transmission power information includes information indicating a transmission power range corresponding to a priority of traffic of each of the plurality of other communication devices. ### Claim 5 (depends on 2) The communication device according to claim 2, wherein the circuitry decides the transmission power indicated by the transmission power setting request on the basis of information that changes in accordance with the channel information and a magnitude of the transmission power. ### Claim 6 (depends on 5) The communication device according to claim 5, wherein the information that changes in accordance with the magnitude of the transmission power includes information indicating power consumption corresponding to the transmission power. ### Claim 7 (depends on 2) The communication device according to claim 2, wherein the circuitry decides the transmission power indicated by the transmission power setting request on the basis of the channel information and information indicating transmission power at which performance of each of the plurality of other communication devices is improved to be higher than other transmission power. ### Claim 8 (depends on 7) The communication device according to claim 7, wherein the performance includes power efficiency or a transmission signal characteristic for a transmission signal. ### Claim 9 (depends on 2) The communication device according to claim 2, wherein the circuitry decides the transmission power indicated by the transmission power setting request on the basis of the channel information and information related to a power source included in each of the plurality of other communication devices. ### Claim 10 (depends on 2) The communication device according to claim 2, wherein, after the selection, the circuitry executes the selection again when network information about the plurality of other communication devices changes. ### Claim 11 (depends on 10) The communication device according to claim 10, wherein the network information about the plurality of other communication devices includes the presence or absence of connection of the plurality of other communication devices, or the channel information. ### Claim 12 (depends on 2) The communication device according to claim 2, wherein, after the selection, the circuitry executes the selection again when the transmission power information or other information related to the transmission power which is different from the transmission power information changes. ### Claim 13 (depends on 1) The communication device according to claim 1, wherein the circuitry is configured to generate a frame related to the transmission power setting request, and the communication interface transmits the frame generated by the circuitry. ### Claim 14 A communication device, comprising: a communication interface configured to transmit transmission power information indicating a settable transmission power range and receive a transmission power setting request indicating transmission power settable by the own device; and circuitry configured to set transmission power of the own device on the basis of the transmission power setting request received by the communication interface, wherein the communication interface performs multiplexing communication at the transmission power set by the circuitry. ### Claim 15 (depends on 14) The communication device according to claim 14, wherein the circuitry is configured to generate a frame including the transmission power setting request, and the communication interface transmits the frame generated by the processing unit in the case where the transmission power information is requested or in the case where the transmission power information changes. ### Claim 16 (depends on 15) The communication device according to claim 15, wherein the frame including the transmission power information includes other information related to the transmission power which is different from the transmission power information. ### Claim 17 A communication method, comprising: selecting, by circuitry, other communication devices capable of setting transmission power such that reception power falls within a predetermined range, from a plurality of other communication devices that perform multiplexing communication; and transmitting a transmission power setting request indicating the transmission power to each of the other communication devices selected by the circuitry. ### Claim 18 A communication method, comprising: transmitting, by a communication interface, transmission power information indicating a settable transmission power range and receiving a transmission power setting request indicating transmission power settable by an own device; setting transmission power of the own device on the basis of the transmission power setting request received by the communication interface; and performing multiplexing communication at the set transmission power. ### Claim 19 (canceled) ### Claim 20 (canceled)