# US 12,113,368 B1 · System, base station, terminal apparatus, method and program for performing communication and wireless power transfer > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,113,368 B1 - Document ID: US12113368B1 - Status: Granted - Kind: B1 - Application number: 18/698,052 - Filed: 2022-08-31 - Published: 2024-10-10 - Granted: 2024-10-08 - Earliest claimed: 2021-10-08 - Assignees: SoftBank Corp. - Applicants: SoftBank Corp. - Inventors: Naoki Hasegawa; Yuta Nakamoto; Takashi Hirakawa; Yoshichika Ota - Web page: https://patentgrep.com/patent/US12113368B1 ## CPC - H02J 50/20: using microwaves or radio frequency waves - H02J 50/40: using two or more transmitting or receiving devices (H02J50/50 takes precedence) - H02J 50/80: involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices - H04L 27/0008: {arrangements for allowing a transmitter or receiver to use more than one type of modulation (negotiating modulation type for two-way transmission paths H04L5/1453)} - H04L 27/361: {Modulation using a single or unspecified number of carriers, e.g. with separate stages of phase and amplitude modulation} - H04W 72/0446: Resources in time domain, e.g. slots or frames - H04W 88/02: Terminal devices - H04W 88/08: Access point devices - Y02D 30/70: in wireless communication networks - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - 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) - 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 Provided is a system comprising a base station and a terminal apparatus that communicate with each other by selectively using plural radio resources, which is capable of supplying a power to the terminal apparatus using a communication-unused radio resource between the base station and the terminal apparatus. The base station generates a transmission signal including a dummy signal for wireless power transfer using a communication-unused radio resource that is not used for communication among plural radio resources, and transmits the generated transmission signal to the terminal apparatus. The terminal apparatus receives the transmission signal including the dummy signal transmitted from the base station, and outputs an electric power of the reception signal as a reception power. A battery may be charged using the reception power. ## Claims ### Claim 1 A system comprising a base station and a terminal apparatus capable of communicating with each other by selectively using plural radio resources, wherein the base station comprises: a communication-signal processing section for generating a transmission signal including a dummy signal for wireless power transfer, the dummy signal being modulated at a symbol point selected for wireless power transfer among plural symbol points of a digital modulation method for downlink communication to the terminal apparatus, by using a communication-unused radio resource that is not used for communication among the plural radio resources in a downlink radio frame for communication to the terminal apparatus; and a radio processing section for transmitting the transmission signal including the dummy signal for wireless power transfer to the terminal apparatus, and wherein the terminal apparatus comprises: a radio processing section for receiving the transmission signal including the dummy signal transmitted from the base station; and a power output section for outputting an electric power of a reception signal that is obtained by receiving the transmission signal including the dummy signal, as a reception power, and wherein the terminal apparatus is wirelessly power-supplied using the communication-unused radio resource in the downlink radio frame for communication to the terminal apparatus. ### Claim 2 (depends on 1) The system according to claim 1, wherein the terminal apparatus comprises a battery that is charged using the reception power. ### Claim 3 (depends on 1) The system according to claim 1, wherein the terminal apparatus comprises: a first-radio processing section for performing a radio communication with the base station via an antenna for communication; and a second-radio processing section for receiving the transmission signal including the dummy signal from the base station via an antenna for reception power. ### Claim 4 (depends on 1) The system according to claim 1, wherein the plural radio resources include plural resource blocks defined by a subcarrier on a frequency axis and a slot on a time axis. ### Claim 5 (depends on 1) The system according to claim 1, wherein the dummy signal for wireless power transfer is a signal modulated at a symbol point with a maximum amplitude among plural symbol points of a digital modulation method. ### Claim 6 (depends on 5) The system according to claim 5, wherein a primary modulation method of the transmission signal from the base station is a QAM (Quadrature Amplitude Modulation) method, wherein a secondary modulation method is an OFDM (Orthogonal Frequency Division Multiplexing) method, and wherein the dummy signal for wireless power transfer is a signal modulated at a symbol point with a maximum amplitude among plural symbol points for the QAM (Quadrature Amplitude Modulation) method. ### Claim 7 (depends on 1) The system according to claim 1, wherein the terminal apparatus transmits power control information used for controlling the power transfer to the terminal apparatus, to the base station, and wherein the base station generates and transmits a transmission signal including the dummy signal based on the power control information received from the terminal apparatus. ### Claim 8 (depends on 7) The system according to claim 7, wherein the power control information includes at least one kind of information among request information for requesting the power transfer to the terminal apparatus, identification information capable of identifying the terminal apparatus, location information of the terminal apparatus, remaining-amount information of a battery provided in the terminal apparatus and approval information for approving the power transfer to the terminal apparatus. ### Claim 9 (depends on 1) The system according to claim 1, wherein the base station: generates, for each of plural terminal apparatuses, the transmission signal including the dummy signal for wireless power transfer using the communication-unused radio resources; and transmits the transmission signal including the dummy signal using plural beams that are different for each terminal apparatus. ### Claim 10 A base station for communicating with a terminal apparatus by selectively using plural radio resources, comprising: a communication-signal processing section for generating a transmission signal including a dummy signal for wireless power transfer, the dummy signal being modulated at a symbol point selected for wireless power transfer among plural symbol points of a digital modulation method for downlink communication to the terminal apparatus, by using a communication-unused radio resource that is not used for communication among the plural radio resources in a downlink radio frame for communication to the terminal apparatus; and a radio processing section for transmitting the transmission signal including the dummy signal for wireless power transfer to the terminal apparatus, and wherein the base station wirelessly supplies power to the terminal apparatus using the communication-unused radio resource in the downlink radio frame for communication to the terminal apparatus. ### Claim 11 (depends on 10) The base station according to claim 10, wherein the dummy signal for wireless power transfer is a signal modulated at a symbol point with a maximum amplitude among plural symbol points of a digital modulation method. ### Claim 12 A terminal apparatus for communicating with a base station by selectively using plural radio resources, comprising: a radio processing section for receiving a transmission signal including a dummy signal for wireless power transfer transmitted from the base station, the dummy signal being modulated at a symbol point selected for wireless power transfer among plural symbol points of a digital modulation method for downlink communication to the terminal apparatus, by using a communication-unused radio resource that is not used for communication among the plural radio resources in a downlink radio frame for communication to the terminal apparatus; and a power output section for outputting an electric power of a reception signal that is obtained by receiving the transmission signal including the dummy signal, as a reception power, and wherein the terminal apparatus is wirelessly power-supplied using the communication-unused radio resource in the downlink radio frame for communication to the terminal apparatus. ### Claim 13 (depends on 12) The terminal apparatus according to claim 12, wherein the dummy signal for wireless power transfer is a signal modulated at a symbol point with a maximum amplitude among plural symbol points of a digital modulation method. ### Claim 14 A system comprising a base station and a terminal apparatus capable of communicating with each other by selectively using plural radio resources, wherein the base station comprises: a communication-signal processing section for generating, for each of plural terminal apparatuses, a transmission signal including a dummy signal for wireless power transfer, the dummy signal being modulated at a symbol point selected for wireless power transfer among plural symbol points of a digital modulation method for downlink communication to the terminal apparatus, by using a communication-unused radio resource that is not used for communication among the plural radio resources; and a radio processing section for transmitting the transmission signal including the dummy signal for wireless power transfer to the terminal apparatus, by using plural beams that are different for each terminal apparatus, and wherein the terminal apparatus comprises: a radio processing section for receiving the transmission signal including the dummy signal transmitted from the base station; and a power output section for outputting an electric power of a reception signal that is obtained by receiving the transmission signal including the dummy signal, as a reception power. ### Claim 15 (depends on 14) The system according to claim 14, wherein the dummy signal for wireless power transfer is a signal modulated at a symbol point with a maximum amplitude among plural symbol points of a digital modulation method. ### Claim 16 A system comprising a base station and a terminal apparatus capable of communicating with each other by selectively using plural radio resources, wherein the base station comprises: a communication-signal processing section for generating a transmission signal including a dummy signal for wireless power transfer using a communication-unused radio resource that is not used for communication among the plural radio resources; and a radio processing section for transmitting the transmission signal including the dummy signal for wireless power transfer to the terminal apparatus, and wherein the terminal apparatus comprises: a radio processing section for receiving the transmission signal including the dummy signal transmitted from the base station; and a power output section for outputting an electric power of a reception signal that is obtained by receiving the transmission signal including the dummy signal, as a reception power, and wherein the dummy signal for wireless power transfer is a signal modulated at a symbol point with a maximum amplitude among plural symbol points of a digital modulation method. ### Claim 17 A base station for communicating with a terminal apparatus by selectively using plural radio resources, comprising: a communication-signal processing section for generating a transmission signal including a dummy signal for wireless power transfer using a communication-unused radio resource that is not used for communication among the plural radio resources; and a radio processing section for transmitting the transmission signal including the dummy signal for wireless power transfer to the terminal apparatus, and wherein the dummy signal for wireless power transfer is a signal modulated at a symbol point with a maximum amplitude among plural symbol points of a digital modulation method. ### Claim 18 A base station for communicating with a terminal apparatus by selectively using plural radio resources, comprising: a communication-signal processing section for generating a transmission signal including a dummy signal for wireless power transfer, the dummy signal being modulated at a symbol point selected for wireless power transfer among plural symbol points of a digital modulation method for downlink communication to the terminal apparatus, by using a communication-unused radio resource that is not used for communication among the plural radio resources; and a radio processing section for transmitting the transmission signal including the dummy signal for wireless power transfer to the terminal apparatus, and wherein the base station: generates, for each of plural terminal apparatuses, the transmission signal including the dummy signal for wireless power transfer using the communication-unused radio resources; and transmits the transmission signal including the dummy signal using plural beams that are different for each terminal apparatus. ### Claim 19 (depends on 18) The base station according to claim 18, wherein the dummy signal for wireless power transfer is a signal modulated at a symbol point with a maximum amplitude among plural symbol points of a digital modulation method. ### Claim 20 A terminal apparatus for communicating with a base station by selectively using plural radio resources, comprising: a radio processing section for receiving a transmission signal including a dummy signal for wireless power transfer transmitted from the base station using a communication-unused radio resource that is not used for communication among the plural radio resources in a downlink radio frame for communication to the terminal apparatus; and a power output section for outputting an electric power of a reception signal that is obtained by receiving the transmission signal including the dummy signal, as a reception power, and wherein the dummy signal for wireless power transfer is a signal modulated at a symbol point with a maximum amplitude among plural symbol points of a digital modulation method.