Wireless terminal device and wireless power supply device

Abstract

The present disclosure provides a technology capable of preventing or reducing interference between wireless power supply and wireless data communication, and improving efficiency, reliability, user convenience, and the like. A wireless power supply system is provided with a wireless terminal device (4), a wireless power supply device (3), and wireless base stations (a wide-area base station (1) and a narrow-area base station (2)). The wireless base station creates plan information including allocation of wireless resources relating to wireless data communication and wireless power supply on the basis of ascertaining a request for wireless data communication and a request for wireless power supply by the wireless terminal device (4), and transmits the plan information to the wireless power supply device (3) and the wireless terminal device (4). The wireless power supply device (3) wirelessly supplies power to the wireless terminal device (4) in accordance with the plan information. The wireless terminal device (4) receives wireless power supply from the wireless power supply device (3) in accordance with the plan information, and performs wireless data communication via the wireless base station.

Description

[0001] This application is a divisional application of an application with a filing date of August 2, 2018, an application number of 201880091984.5, and an invention name of “Wireless Terminal Device and Wireless Power Supply Device”. Technical Field

[0002] The present invention relates to technologies such as a wireless power supply system, a wireless communication system, a wireless terminal device, and a wireless power supply device. In addition, the present invention relates to technologies of wireless power supply and wireless communication that can use electromagnetic waves such as microwaves and millimeter waves. Background Art

[0003] As a wireless power supply technology, a system for wirelessly powering a wireless terminal device from a wireless power supply device has been developed. A system for wireless power supply at a short distance has been realized. In recent years, a system for wireless power supply at a medium distance (for example, about several meters) has also been developed. There are several methods for wireless power supply, such as radio wave reception method, electromagnetic induction method, magnetic field resonance method, electric field coupling method, etc. In the case of the radio wave reception method, wireless power is supplied from the wireless power supply device to the wireless terminal device within the medium distance by sending electromagnetic waves (such as microwaves or millimeter waves).

[0004] As examples of prior art related to wireless power supply, Japanese Patent No. 5456380 (Patent Document 1), Japanese Patent Publication No. 2017-139954 (Patent Document 2), and Japanese Patent Publication No. 2015-231252 (Patent Document 3) can be cited. In Patent Document 1, there is a system for performing low-output wireless power supply from a wireless power supply terminal to a wireless terminal device in a wireless communication network. In Patent Document 2, there is a wireless power transmission system for wirelessly charging a device via microwave energy. In Patent Document 3, there is a wireless power transmission device of electromagnetic induction method.

[0005] Prior art literature

[0006] Patent Literature

[0007] Patent Document 1: Japanese Patent No. 5456380

[0008] Patent Document 2: Japanese Patent Application Publication No. 2017-139954

[0009] Patent Document 3: Japanese Patent Application Publication No. 2015-231252 Summary of the invention

[0010] In a wireless power supply system that uses electromagnetic waves for wireless power supply and a wireless communication system that uses electromagnetic waves for wireless communication (sometimes recorded as wireless data communication to distinguish it from wireless communication for control), both wireless power supply and wireless data communication are sometimes performed. For example, sometimes a wireless power supply request from a wireless terminal device and a wireless data communication request from a wireless terminal device or a wireless base station are generated at close timing. In this case, sometimes undesirable interference occurs in wireless power supply and wireless data communication. Regarding this interference, for example, interference in the frequency of electromagnetic waves, processing load when processing both parties at the same time, etc. can be cited. Therefore, there are issues related to efficiency, reliability, user convenience, etc. related to wireless power supply and wireless data communication. In addition, when there are multiple wireless terminal devices and multiple wireless power supply devices in an area corresponding to a LAN (Local Area Network), sometimes multiple wireless power supplies and multiple wireless data communications are mixed. In this case, there are also issues related to interference.

[0011] The purpose of the present invention is to provide a technology related to wireless power supply and wireless data communication, which can prevent or reduce interference between wireless power supply and wireless data communication and improve efficiency, reliability, user convenience, etc.

[0012] A typical embodiment of the present invention is a wireless terminal device and a wireless power supply device constituting a wireless power supply system, and is characterized by having the following configuration.

[0013] A wireless terminal device in one embodiment constitutes a wireless power supply system, which includes: the wireless terminal device as a wireless power supply target; a wireless power supply device that wirelessly supplies power to the wireless terminal device; and a wireless base station that relays the wireless data communication of the wireless terminal device, wherein the wireless base station generates plan information for allocating wireless resources including the wireless data communication and the wireless power supply, based on the wireless terminal device's request for wireless data communication and the grasp of the wireless power supply request, and is used to prevent or reduce interference related to the wireless data communication and the wireless power supply, and sends the plan information to the wireless power supply device and the wireless terminal device, wherein the wireless power supply device performs the wireless power supply to the wireless terminal device in accordance with the plan information, and the wireless terminal device receives the wireless power supply from the wireless power supply device in accordance with the plan information and performs the wireless data communication via the wireless base station.

[0014] A wireless power supply device in one embodiment constitutes a wireless power supply system, which includes: the wireless terminal device as a wireless power supply object; a wireless power supply device that wirelessly supplies power to the wireless terminal device; and a wireless base station that relays the wireless data communication of the wireless terminal device, wherein the wireless base station generates plan information for allocating wireless resources including the wireless data communication and the wireless power supply, which is used to prevent or reduce interference related to the wireless data communication and the wireless power supply, based on the wireless terminal device's request for the wireless data communication and the grasp of the wireless power supply request, and sends the plan information to the wireless power supply device and the wireless terminal device, wherein the wireless power supply device performs the wireless power supply to the wireless terminal device according to the plan information, and the wireless terminal device receives the wireless power supply from the wireless power supply device according to the plan information and performs the wireless data communication via the wireless base station.

[0015] According to a representative embodiment of the present invention, the technology of wireless power supply and wireless data communication can prevent or reduce interference between wireless power supply and wireless data communication, and can improve efficiency, reliability, user convenience, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a diagram showing the configuration of a wireless power supply system including a wireless terminal device and a wireless power supply device according to Embodiment 1 of the present invention.

[0017] Figure 2 FIG. 1 is a diagram showing another configuration example of the wireless power supply system.

[0018] Figure 3 FIG. 1 is a diagram showing another configuration example of the wireless power supply system.

[0019] Figure 4 It is a diagram showing a configuration example of a wireless power supply system area and a usage scenario.

[0020] Figure 5 This is a diagram showing the first communication method in the first embodiment.

[0021] Figure 6 This is a diagram showing the configuration of a wireless terminal device according to Embodiment 1.

[0022] Figure 7 This is a diagram showing the configuration of an antenna switch and the like of the wireless terminal device according to the first embodiment.

[0023] Figure 8 This is a diagram showing a configuration of a wireless terminal device according to a modified example of the first embodiment.

[0024] Fig. 9This is a diagram showing an example of the configuration of the appearance of a wireless terminal device according to Embodiment 1.

[0025] Fig.10 It is shown Fig. 9 A diagram showing a cross-sectional structural example of a wireless terminal device.

[0026] Fig.11 This is a diagram showing the configuration of a wireless power supply device according to Embodiment 1.

[0027] Fig.12 This is a diagram showing an example of the configuration of the appearance of the wireless power supply device according to the first embodiment.

[0028] Fig.13 This is an explanatory diagram showing an expected relationship between the wireless power supply device and the wireless terminal device according to the first embodiment.

[0029] Fig.14 This is a diagram showing an example of a state in which a user holds the wireless terminal device according to the first embodiment.

[0030] Fig.15 This is a diagram showing a process flow of the wireless terminal device according to the first embodiment.

[0031] Fig.16 1 is a diagram showing a process flow of the wireless power supply device according to the first embodiment.

[0032] Fig.17 This is a diagram showing a configuration example of a plan in the first embodiment.

[0033] Fig.18 This is a diagram showing a sequence between devices during wireless data communication in the first embodiment.

[0034] Fig.19 This is a diagram showing the first sequence between devices in the first embodiment.

[0035] Fig. 20 This is a diagram showing the second sequence between devices in the first embodiment.

[0036] Fig.21 This is a diagram showing the third sequence between devices in the first embodiment.

[0037] Fig. 22 is shown with Fig.21 Figure 2 is a diagram showing an example of a plan structure corresponding to the situation.

[0038] Fig.23 This is a diagram showing the position management function in the first embodiment.

[0039] Fig.24 This is a diagram showing a second communication method in a modified example of the first embodiment.

[0040] Fig.25 1 is a diagram showing an example of interference in a wireless power supply system according to a comparative example.

[0041] Fig.26 This is a diagram showing the configuration of a wireless power supply system including a wireless terminal device and a wireless power supply device according to Embodiment 2 of the present invention.

[0042] Fig. 27 This is a diagram showing a sequence between devices in the second embodiment.

[0043] Fig.28 This is a diagram showing a configuration of a wireless terminal device according to Embodiment 3 of the present invention.

[0044] Fig.29 This is a diagram showing a first example of scheduling in a wireless power supply system including a wireless terminal device and a wireless power supply device according to Embodiment 4 of the present invention.

[0045] Fig.30 This is a diagram showing a second example of scheduling in a wireless power supply system including a wireless terminal device and a wireless power supply device according to Embodiment 4 of the present invention.

[0046] Explanation of symbols

[0047] 1: wide area base station; 2: narrow area base station; 3: wireless power supply device; 4: wireless terminal device; 101: area; 102: scheduling function; 103: scheduling request function; 104: scheduling request function; W1: wireless power supply; C1 (Ca, Cb): wireless data communication. DETAILED DESCRIPTION

[0048] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the embodiments, "wireless data communication" refers to wireless communication that is a control target related to interference prevention in a wireless power supply system.

[0049] [Topics, etc.]

[0050] Supplementary explanation of prerequisite technologies, topics, etc. In a wireless power supply system as an example of the prior art, for example, as in Patent Document 1, when wireless power is supplied from a wireless power supply device to a wireless terminal device, electromagnetic waves of at least one frequency are used. In addition, the wireless terminal device uses electromagnetic waves of at least one frequency to perform wireless data communication with a wireless base station. When the timing, frequency, etc. of these wireless power supplies and wireless data communications are consistent, interference and inefficiency may occur. Due to interference, for example, one party may interfere with the other party, such as wireless data communication cannot be performed due to wireless power supply, or wireless power supply cannot be performed due to wireless data communication. Alternatively, due to interference, the efficiency of wireless power supply may decrease, or the efficiency of wireless data communication may decrease. In addition, when the device must handle multiple wireless power supplies and multiple wireless data communications at the same time, the processing load may be too high. In the prior art examples, no method for avoiding such a situation or a method for efficiently handling both parties is recorded.

[0051] In addition, for example, Patent Document 3 is an electromagnetic induction method. In such a method, if the wireless power supply device and the wireless terminal device are not brought into a state close to a predetermined close distance (e.g., several cm), effective power cannot be supplied. In a wireless power supply system using a radio wave reception method, the user can make the wireless terminal device be in a state of being away from the position of the wireless power supply device at a medium distance (e.g., several meters) to perform wireless power supply, which is valuable in terms of convenience. In this case, when wireless power supply is performed from the wireless power supply device to the wireless terminal device as the target, interference may occur with wireless power supply and wireless data communication performed by other devices in the surrounding area.

[0052] In addition, especially in the case of wireless power supply using the millimeter wave band, due to the characteristics of millimeter waves, high precision is required in the positional relationship between the wireless power supply device and the wireless terminal device. When there are obstructions on the straight line connecting the wireless power supply device and the wireless terminal device, or when the position and orientation of the antenna are inappropriate, wireless power supply may not be achieved efficiently. In the prior art examples, the interference and efficiency related to millimeter wave wireless power supply have not been fully studied. In addition, millimeter waves (EHF) are electromagnetic waves with a wavelength of 1 to 10 mm and a frequency of 30 to 300 GHz.

[0053] In addition, it is assumed that the wireless terminal device has a communication unit (wireless communication interface device) that handles multiple electromagnetic waves, and the wireless power supply device has a power transmission unit that handles multiple electromagnetic waves. As multiple electromagnetic waves, for example, microwaves and millimeter waves are assumed. In the prior art examples, the interference and efficiency when handling multiple electromagnetic waves have not been fully studied.

[0054] [Comparative Example]

[0055] Fig.25 An example of interference in a wireless power supply system of a comparative example is shown. A narrow area base station 92, a wireless power supply device 93, and a wireless terminal device 94 are configured in an area 901. The narrow area base station 92 is connected to the wide area base station 91. The wireless terminal device 94 has wireless terminal devices 941 to 943 as an example of a plurality of wireless terminal devices. The wireless terminal device 941 performs wireless data communication C1 and receives wireless power supply W1. The wireless terminal device 942 performs wireless data communication C2 and receives wireless power supply W2. The wireless terminal device 943 performs wireless data communication C3 and receives wireless power supply W3. For example, interference may occur between these six actions.

[0056] In addition, regarding the portion of multiple wireless data communications (wireless data communications C1 to C3), in the past, generally speaking, the wireless base station performed scheduling in a manner that does not cause interference, such as allocating different frequencies (also called channels), etc. However, regarding the portion of multiple wireless power supplies (wireless power supplies W1 to W3), including the relationship with the wireless data communications C1 to C3, interference was not fully considered, and scheduling for preventing interference was not performed.

[0057] Furthermore, imagine Fig.25 In the structure, microwaves and millimeter waves can be used as wireless-related electromagnetic waves. In this case, four types of actions may occur: (1) microwave wireless data communication, (2) millimeter wave wireless data communication, (3) microwave wireless power supply, and (4) millimeter wave wireless power supply. There are also issues such as interference with these actions.

[0058] (Implementation Method 1)

[0059] use Figure 1 to Figure 24 A wireless power supply system including a wireless terminal device and a wireless power supply device according to Embodiment 1 of the present invention will be described. An overview and basic functions of Embodiment 1 are as follows.

[0060] (1) In the present wireless power supply system, there is a structure for scheduling taking into account the interference and overall efficiency of wireless power supply and wireless data communication. For example, the wireless base station has a scheduling function. The wireless base station allocates wireless resources (including time and frequency) and makes a plan for the requested wireless data communication and wireless power supply in a manner that prevents or reduces interference. The wireless terminal device and the wireless power supply device of implementation mode 1 have the function of requesting scheduling from the wireless base station. The wireless terminal device and the wireless power supply device respectively send information and requests such as the status of the device and obtain the planning information from the wireless base station. The wireless terminal device and the wireless power supply device respectively control the execution of the wireless power supply and the wireless data communication according to the planning information.

[0061] (2) In the present wireless power supply system, various methods are used in scheduling, such as a method of dividing time, a method of dividing frequency, a method of dividing antennas, a method of dividing the types of electromagnetic waves, etc. in wireless power supply and wireless data communication.

[0062] (3) The wireless terminal device of Embodiment 1 includes a communication unit that handles multiple types of electromagnetic waves, especially millimeter waves and microwaves. The wireless power supply device of Embodiment 1 includes a power transmission unit that handles multiple types of electromagnetic waves, especially millimeter waves and microwaves. The wireless terminal device of Embodiment 1 switches the state of the antenna of the communication unit, etc., in accordance with the plan information so as to receive power and perform wireless data communication for wireless power supply. The wireless power supply device of Embodiment 1 switches the state of the antenna of the power transmission unit, etc., in accordance with the plan information so as to perform wireless power supply.

[0063] [Wireless power supply system (1)]

[0064] Figure 1 The structural outline of the wireless power supply system in Implementation Example 1 is shown. In other words, this wireless power supply system is a wireless communication system. This wireless power supply system has a global base station (wide area base station) 1, a local area base station (narrow area base station) 2, a wireless power supply device 3, and a wireless terminal device 4. In a predetermined area 101, there are one or more narrow area base stations 2, one or more wireless power supply devices 3, and one or more wireless terminal devices 4. Area 101 is an area corresponding to home, office, and wireless LAN. In area 101, one or more users use wireless terminal devices 4, etc. The wide area base station 1 is connected to the narrow area base station 2 by optical fiber or wireless. The narrow area base station 2 is connected to the wireless power supply device 3 and the wireless terminal device 4 by wireless (indicated by a dotted line). It is also possible that the narrow area base station 2 is connected to the wireless power supply device 3 by optical fiber. The wireless power supply device 3 is connected to the wireless terminal device 4 by wireless. The wireless terminal device 4 is a portable information terminal device such as a smart phone or a tablet terminal, which is carried by the user.

[0065] The present wireless power supply system has a wide area base station 1 and a narrow area base station 2 as wireless base stations. The wireless base station is a device that communicates with a wireless terminal device 4 and a wireless power supply device 3, and relays wireless data communication of the wireless terminal device 4. The wide area base station 1 constitutes the core network of a wireless communication network (mobile network), and is sometimes referred to as a macro base station. The wide area base station 1 is, for example, a base station covering a distance range of hundreds of meters to tens of kilometers. The Internet, etc. is connected to the wireless communication network. The wireless terminal device 4, etc. can also perform wireless data communication with a server device, etc. on the Internet.

[0066] The narrow area base station 2 is connected to the wide area base station 1 for communication, and is equivalent to, for example, an access point, a router, or other device constituting a wireless LAN. The narrow area base station 2 is, for example, a base station covering a distance range of several meters to several tens of meters. The narrow area base station 2 may also be called a small base station, a spot base station, a femto base station, a very small base station, etc., depending on the radius of the area that can cover wireless communication, and the narrow area base station 2 is a general term that includes all of them.

[0067] exist Figure 1 In the configuration example, the wireless power supply device 3 and the narrow area base station 2 are independently arranged at positions far from each other. The wireless power supply device 3 and the narrow area base station 2 cooperate through communication. In addition, the wireless power supply device 3 and the narrow area base station 2 may be arranged at almost the same position.

[0068] The wireless power supply device 3 has a wireless power supply function for wirelessly supplying power to the wireless terminal device 4. The wireless power supply device 3 wirelessly supplies power W1 to the wireless terminal device 4. The wireless power supply device 3 also has a wireless communication function with the narrow area base station 2 and a wireless communication function with the wireless terminal device 4, and uses the wireless communication function for control communication and the like.

[0069] The wireless terminal device 4 has a wireless data communication function and a function of receiving wireless power from the wireless power supply device 3. The wireless terminal device 4 performs wireless data communication C1 with other wireless terminal devices and other devices via wireless communication with the narrow area base station 2. The wireless data communication C1 includes wireless data communication Ca in the receiving direction and wireless data communication Cb in the sending direction. The wireless data communication Ca is wireless data communication in the receiving direction from other wireless terminal devices outside the area 101, such as remote wireless terminal devices, via the wireless base station to the wireless terminal device 4. The wireless data communication Cb is wireless data communication in the sending direction from the wireless terminal device 4 to other wireless terminal devices outside the area 101, such as remote wireless terminal devices. The wireless data communication C1 is implemented in a well-known sequence of establishing a connection, sending or receiving data in a connected state, and releasing the connection.

[0070] In the present wireless power supply system, the wireless base station, in particular, the wide area base station 1 has a scheduling function 102. Correspondingly, the wireless power supply device 3 has a scheduling request function 103, and the wireless terminal device 4 has a scheduling request function 104. The scheduling function 102 is a function for making plans for both wireless power supply and wireless data communication related to the wireless power supply device 3 and the wireless terminal device 4, including the allocation of wireless resources. The scheduling request functions 103 and 104 are functions for sending information and requests to the scheduling function 102, obtaining plan information, and managing the execution of wireless power supply and wireless data communication in accordance with the plan information. In this scheduling, the allocation of time, frequency, antenna, etc. is determined in a manner to prevent or reduce interference between wireless power supply and wireless data communication.

[0071] [Wireless power supply system (2)]

[0072] Figure 2 Other structural examples of wireless power supply systems are shown. Figure 2 In the wireless power supply system, the wireless power supply device 3 and the narrow area base station 2 are integrally installed at the same position and perform cooperative operation. In other words, the functions of the wireless power supply device 3 and the functions of the narrow area base station 2 are installed in one device. The device is a wireless base station device with a wireless power supply function or a wireless power supply device with a wireless base station function. The one device is recorded as a wireless base station power supply device 5.

[0073] In addition, Figure 2 In the configuration example, a situation is shown in which there are multiple wireless terminal devices 4, for example, three wireless terminal devices 41, 42, and 43, in area 101 relative to one wireless base station power supply device 5 and they are wirelessly connected. The multiple wireless terminal devices 4 (41 to 43) can respectively perform wireless data communication and wireless power supply with the narrow area base station 2 (wireless base station power supply device 5). The multiple wireless terminal devices 4 (41 to 43) can also wirelessly communicate with each other via the narrow area base station 2 (wireless base station power supply device 5). The wireless communication is also included in the wireless data communication that is the object of scheduling.

[0074] In addition, Figure 2 In the structural example, it is also shown that as wireless data communication, multiple wireless terminal devices 4 (41 to 43) communicate directly with other nearby devices without going through the wireless base station (narrow area base station 2) (multi-device connection data communication described later). The example of this communication is shown as communication MM1, MM2, MM3. This communication can also be achieved by short-range wireless communication using an interface such as Bluetooth (a registered trademark in Japan). This type of wireless communication is also included in the wireless data communication that is the object of scheduling.

[0075] In addition, Figure 2 In the wireless power supply system of the configuration example, for the narrow area base station 2 and the wireless terminal device 4 in the area 101, for example, a PC is wirelessly connected as another device 6. In this case, the wireless terminal device 4 can perform wireless data communication CX with the other device 6 (PC). The wireless data communication CX can also be included in the wireless data communication as the scheduling object.

[0076] [Wireless power supply system (3)]

[0077] Figure 3 As a variation, another configuration example of a wireless power supply system is shown. In this wireless power supply system, within the area 101, multiple (for example, two) wireless power supply devices 3 (31, 32) are wirelessly connected to one narrow area base station 2. In addition, one wireless terminal device 4 is wirelessly connected to multiple (for example, two) wireless power supply devices 3 (31, 32). In this case, the wireless terminal device 4 can receive wireless power supply between any wireless power supply device 3. Furthermore, in other configuration examples, multiple wireless terminal devices 4 can also be wirelessly connected to each wireless power supply device 3.

[0078] [Use scenario]

[0079] Figure 4 Show Figure 1 An example of the structure of area 101 in a wireless power supply system such as , and an example of a use scenario. Area 101 corresponds to, for example, a floor of a company. In area 101, one or more narrow area base stations 2 and one or more wireless power supply devices 3 are installed. Figure 4 In the example, five wireless power supply devices 3 are wirelessly connected to one narrow area base station 2. In area 101, power supply areas 501 and 502 are set as power supply areas. One or more wireless power supply devices 3 are set in the power supply area, which are areas and points where wireless power supply can be performed. According to the needs, the required number of wireless power supply devices 3 are set in such a way that the entire area or a part of the area in area 101 constitutes the power supply area. It is possible to add, cancel, and move the wireless power supply device 3 according to the needs. The range in which each wireless power supply device 3 can supply power is shown by a circle. This range represents, for example, a range corresponding to a medium distance (about several meters) in the case of wireless power supply of millimeter waves by radio wave reception. Users in area 101 can receive wireless power by appropriately bringing their wireless terminal devices 4 into the power supply area as needed.

[0080] In this example, one wireless power supply device 3 (3e) is provided in the power supply area 501. Four wireless power supply devices 3 (3a to 3d) are provided in the power supply area 502. In particular, the power supply ranges of the wireless power supply devices 3 may overlap as in the power supply area 502. In the case of the power supply area 502, the user's wireless terminal device 4 can receive wireless power supply as long as it enters the range of any wireless power supply device 3 (3a to 3d).

[0081] The user may also change the location of the wireless power supply device 3 in the area 101 according to the needs. The locations of the narrow area base station 2 and the wireless power supply device 3 are set in advance when the system is set up, and information management is performed. When the location of the wireless power supply device 3 is changed, the set location is also updated. For example, the setting of the relative position of the wireless power supply device 3 relative to the narrow area base station 2 is updated. In addition, at this time, the narrow area base station 2 may detect the location of the wireless power supply device 3 and update the setting, or the wireless power supply device 3 may detect its own location and notify the narrow area base station 2, thereby updating the setting.

[0082] As another configuration example, a plurality of wireless power supply devices 3 may be provided in close proximity and densely in the power supply area. In addition, wireless power supply devices capable of conventional proximity-type wireless power supply and corresponding wireless terminal devices may coexist in the area 101 .

[0083] [Wireless power supply method]

[0084] The wireless power supply method between the wireless power supply device 3 and the wireless terminal device 4 is basically not limited, but the radio wave reception method is particularly used in the first embodiment. In the radio wave reception method, the distance covered by the wireless power supply device 3 that can supply power is set to a medium distance (about several meters), and wireless power supply can be performed within the range of this distance. When there is a wireless terminal device 4 within this range, wireless power supply can be received. In the radio wave reception method, the wireless power supply device 3 (in other words, the power transmitting device) converts power into electromagnetic waves and sends them from the antenna. The wireless terminal device 4 (in other words, the power receiving device) receives the electromagnetic waves using the antenna, converts them into power, and uses the power to charge, for example, a battery pack.

[0085] In the first embodiment, microwaves or millimeter waves can be used as electromagnetic waves in the radio wave reception method. The wireless terminal device 4 includes a communication unit that handles these multiple types of electromagnetic waves. The wireless power supply device 3 includes a power transmission unit that handles these multiple types of electromagnetic waves.

[0086] [Scheduling function, scheduling request function]

[0087] Generally speaking, wireless base stations manage and control a predetermined area (in Figure 1 The wireless communication status of the area 101 in the wireless power supply system. Therefore, in the present wireless power supply system, the wireless base station performs scheduling related to wireless data communication and wireless power supply. In embodiment 1, the wide area base station 1 has a scheduling function 102 as a function for performing the scheduling. In other embodiments, the narrow area base station 2 may also have the scheduling function 102. The wireless terminal device 4 and the wireless power supply device 3 have a function of sending information and requests to the narrow area base station 2 and the wide area base station 1 to be reflected in the scheduling (scheduling request functions 103, 104).

[0088] The wide area base station 1 performs scheduling using the scheduling function 102 when two types of requests, wireless power supply and wireless data communication, are generated in the area 101, when a wireless power supply request is generated during the execution of wireless data communication, when a wireless data communication request is generated during the execution of wireless power supply, etc. Specifically, as a scheduling method, there are a method of dividing time, a method of dividing frequency, a method of dividing antennas, etc. between one or more wireless power supplies and one or more wireless data communications. A method of combining the various methods can also be adopted.

[0089] The wireless terminal device 4 and the wireless power supply device 3 of the first embodiment perform scheduling by cooperating with the wireless base stations (the narrow area base station 2 and the wide area base station 1) to create an appropriate plan. Thus, wireless power supply and wireless data communication can be efficiently performed as a whole without interfering with each other according to the plan.

[0090] [Scheduling method (1) - time separation method]

[0091] As a scheduling method, the time separation method is as follows.

[0092] (1-1) When, for example, Figure 1 In the case where a wireless terminal device 4 generates two requests, a request for wireless power supply W1 and a request for wireless data communication C1, in approximately the same time period, scheduling is performed as follows. As a first example of the schedule, wireless power supply W1 is performed at the previous first time, and wireless data communication C1 is performed at the next second time. Alternatively, as a second example of the schedule, wireless data communication C1 is performed at the previous first time, and wireless power supply W1 is performed at the next second time.

[0093] The decision of which of wireless power supply and wireless data communication is to be performed first is determined based on the type, priority, urgency, and status of the wireless terminal device 4 at that time. For example, when the charging state value (charging rate, etc.) of the battery pack of the wireless terminal device 4 is below the threshold, it is determined that the priority is high and the wireless power supply is performed first. When the charging state value of the battery pack of the wireless terminal device 4 is greater than the threshold, it is determined that the priority is low and the wireless power supply is performed later.

[0094] (1-2) In addition, when, for example, Figure 2 In the case where there are multiple wireless power supply requests related to multiple wireless terminal devices 4 in approximately the same time period, scheduling is performed in a manner that divides the time among the multiple wireless power supplies. For example, it is assumed that there is wireless power supply W1 to the wireless terminal device 41 and wireless power supply W2 to the wireless terminal device 42. In this case, as a first example of the plan, wireless power supply W1 is performed at the previous first time, and wireless power supply W2 is performed at the next second time. Alternatively, as a second example of the plan, wireless power supply W2 is performed at the previous first time, and wireless power supply W1 is performed at the next second time.

[0095] (1-3) In addition, when the antenna provided by the communication unit of the wireless terminal device 4 is an antenna that can be shared in wireless power supply and wireless data communication (recorded as a shared antenna), the shared antenna can be shared in wireless power supply and wireless data communication, and scheduled in a time-divided manner. The wireless terminal device 4 switches the shared antenna during wireless power supply and wireless data communication according to the plan. The wireless terminal device 4 has a hardware and software structure including an antenna switch described later that can perform such switching.

[0096] [Scheduling method (2) - Frequency separation method]

[0097] As a scheduling method, the frequency separation method is as follows.

[0098] (2-1) When, for example, Figure 1 In the case where a wireless terminal device 4 generates two requests, a request for wireless power supply and a request for wireless data communication, in approximately the same time period, scheduling is performed in a manner using different frequencies as follows. As a first example of the plan, the first frequency is allocated to wireless power supply W1, and the other second frequency is allocated to wireless data communication C1. The frequency to be used is selected and allocated from the frequencies that can be used at that time point. In addition, in the case of this method, if there is no problem with interference between the electromagnetic waves of the frequencies to be used, the wireless power supply and wireless data communication using these frequencies can also be in the same time period.

[0099] (2-2) In addition, when Figure 2 In the case where there are multiple wireless power supply requests related to multiple wireless terminal devices 4 in approximately the same time period, scheduling is performed by dividing the frequencies among the multiple wireless power supplies. As a first example of the plan, the first frequency is allocated to the wireless power supply W1 of the wireless terminal device 41, and the other second frequency is allocated to the wireless power supply W2 of the wireless terminal device 42. For example, when multiple frequencies can be switched in the communication unit of the wireless terminal device 4, it can be handled by switching the frequency in the communication unit. Alternatively, when a plurality of communication units corresponding to the frequencies are provided as the communication unit of the wireless terminal device 4, it can be handled by switching the communication unit to be used.

[0100] [Scheduling method (3) - Antenna separation method]

[0101] As a scheduling method, the antenna separation method is as follows. The communication unit of the wireless terminal device 4 is set to have multiple antennas that can be used. Figure 1 In the case where a wireless terminal device 4 generates two requests, a request for wireless power supply W1 and a request for wireless data communication C1, in approximately the same time period, scheduling is performed in a manner using different antennas as follows. As an example of a plan, the first antenna is assigned to the wireless power supply W1, and the second antenna is assigned to the wireless data communication C1. In addition, in the case of this method, when there is no problem with interference between the antennas to be used, the wireless power supply and wireless data communication using these multiple antennas can also be in the same time period. The wireless terminal device 4 uses an antenna switch, etc. to switch the antenna to be used to respond.

[0102] [Scheduling method (4) - millimeter wave / microwave separation method]

[0103] As a scheduling method, the millimeter wave / microwave separation method, that is, the method of dividing the types of electromagnetic waves (millimeter waves / microwaves) used in wireless power supply and wireless data communication and the corresponding communication units is as follows. The communication unit of the wireless terminal device 4 has a plurality of communication units with different types of electromagnetic waves to be used (for example, millimeter waves and microwaves). Figure 1 In the case where a wireless terminal device 4 generates two requests, a request for wireless power supply W1 and a request for wireless data communication C1, in approximately the same time period, scheduling is performed in a manner using different types of electromagnetic waves as follows. As an example of a plan, a communication unit for millimeter waves is allocated to wireless power supply W1, and a communication unit for microwaves is allocated to wireless data communication C1.

[0104] [Communication method (1)]

[0105] The following further describes the details of Implementation 1. Figure 5The first communication method in the first embodiment is shown. Regarding the first communication method, an example of a detailed communication method when wireless power supply and wireless data communication are processed according to scheduling between the wide area base station 1, the narrow area base station 2, the wireless power supply device 3, and the wireless terminal device 4 is shown. In the first communication method, the wide area base station 1 performs scheduling. In addition, in the first communication method, the wireless power supply request from the wireless terminal device 4 is sent to the wireless base station (narrow area base station 2).

[0106] Assume that there is one wireless terminal device 4 (set as ID=MT1), one wireless power supply device 3 (set as ID=SP1), and one narrow area base station 2 (set as ID=ST1) in area 101. Wireless data communication C1 and wireless power supply W1 related to wireless terminal device 4 (MT1) as the object of scheduling are shown. Wireless data communication C1 is, for example, communication from wireless terminal device 4 (MT1) to other external wireless terminal devices, or communication from other external wireless terminal devices to wireless terminal device 4 (MT1). Wireless power supply W1 is wireless power supply from wireless power supply device 3 (SP1) to wireless terminal device 4 (MT1).

[0107] exist Figure 5 , as communication sequences related to the request for wireless power supply W1, etc., sequences WR1 to WR5 are shown. In sequence WR1, the wireless terminal device 4 sends the wireless power supply request to the narrow area base station 2. In sequence WR2, the narrow area base station 2 sends the wireless power supply request from the wireless terminal device 4 to the wide area base station 1. In sequence WR3, the wide area base station 1 sends the schedule information, etc. to the narrow area base station 2 after scheduling. In sequence WR4, the narrow area base station 2 sends the schedule information, etc. to the wireless power supply device 3. In addition, in sequence WR5, the narrow area base station 2 sends the schedule information, etc. to the wireless terminal device 4.

[0108] As communication sequences related to the request for wireless data communication C1, sequences CR1 to CR5 are shown. In sequence CR1, the wireless terminal device 4 sends a request for connection of wireless data communication to the narrow area base station 2. In sequence CR2, the narrow area base station 2 sends the request from the wireless terminal device 4 to the wide area base station 1. In sequence CR3, the wide area base station 1 sends the schedule information to the narrow area base station 2 after scheduling. In sequence CR4, the narrow area base station 2 sends the schedule information to the wireless power supply device 3. In sequence CR5, the narrow area base station 2 sends the schedule information to the wireless terminal device 4.

[0109] The following is an example of scheduling. When the wide area base station 1 receives a request in the sequence WR2 and when it receives a request in the sequence CR2, it performs the latest scheduling corresponding to the situation at that time point. In addition, when there are both a request for wireless power supply W1 and a request for wireless data communication C1, the wide area base station 1 determines the plan according to the above-mentioned time separation method. For example, the first time T1 and the first frequency F1 are allocated to the wireless power supply W1. The second time T2 and the second frequency F2 are allocated to the wireless data communication C1. The wide area base station 1 sends the plan information (plan information J3, J4) containing such allocation information to the wireless power supply device 3 and the wireless terminal device 4. In addition, the content of the plan information J3 corresponds to the content of the plan information J4.

[0110] The wireless power supply device 3 performs wireless power supply W1 for the wireless terminal device 4 at the first time T1 and the first frequency F1 according to the acquired schedule information J3. Correspondingly, the wireless terminal device 4 receives the wireless power supply W1 from the wireless power supply device 3 according to the acquired schedule information J4. In addition, the wireless terminal device 4 performs wireless data communication C1 at the second time T2 and the second frequency F2 according to the schedule information J4.

[0111] As described above, in the first communication method, the wide area base station 1, the narrow area base station 2, and the wireless power supply device 3 each grasp the status of the wireless power supply W1 and the wireless data communication C1 related to the target wireless terminal device 4 through scheduling. Then, each device processes the wireless power supply W1 and the wireless data communication C1 according to the plan.

[0112] [Wireless terminal device (1-1)]

[0113] Figure 6 The block structure of the wireless terminal device 4 is shown. The wireless terminal device 4 shows the case of a portable information terminal device such as a smartphone. The wireless terminal device 4 includes a processor 401, a memory 402, a sensor 403, a camera 404, a microphone 405, a speaker 406, a display device 407, an LED 408, a communication unit 410, an AC-DC converter 421, a charging control circuit 422, a battery pack 423, an AC adapter 424, etc., which are connected via a bus or the like. The communication unit 410 includes a first communication unit 411, a second communication unit 412, and a third communication unit 413. The communication unit 410 is a wireless communication interface device.

[0114] The charging control circuit 422 is equipped with a battery pack 423. The AC-DC converter 421 is connected to the charging control circuit 422. The antenna switch 71 of the first communication unit 411 is connected to the AC-DC converter 421. The AC adapter 424 can be connected to the charging control circuit 422 to prevent the remaining amount (charging power) of the battery pack 423 from being insufficient to operate the wireless terminal device 3. When the AC adapter 424 is connected, the power supplied from the commercial power supply can be charged from the AC adapter 424 to the battery pack 423 via the charging control circuit 422.

[0115] The antenna switches 71 to 73 are components for switching the antenna and circuit to be used according to the plan and purpose. The antenna switch is provided between the antenna and the circuit. Figure 6 In the configuration example, only the antenna switch 71 of the first communication unit 411 among the antenna switches 71 to 73 is connected to the AC-DC converter 421. That is, in this configuration, wireless power can be supplied only from the first communication unit 411 (antenna 61) when charging the battery pack 423. According to the connection state of the antenna switch 71, the AC power from the antenna 61 is converted into DC power by the AC-DC converter 421 and supplied to the charging control circuit 422.

[0116] The processor 401 is composed of a CPU, a ROM, a RAM, etc., and controls the entire wireless terminal device 4. The processor 401 controls the various communication units (antenna switches 71 to 73 and various circuits 81 to 83) of the communication unit 410. The processor 401, as a processing unit composed of software program processing or hardware circuits, has a communication control unit 401A, a power management unit 401B, an antenna control unit 401C, and a schedule management unit 401D. In the memory 402, programs, various data, setting information, etc. are stored. In the memory 402, for example, data obtained through wireless communication (including schedule information J4), image data obtained by photographing by the camera 404, etc. are stored.

[0117] Sensor 403 is a well-known sensor device class, including a GPS sensor, a gyro sensor, an acceleration sensor, an electronic compass, an illumination sensor, a proximity sensor, and the like. The GPS sensor obtains the location information of the wireless terminal device 3. The gyro sensor obtains information related to the inclination, rotation, and orientation of the wireless terminal device 3. The acceleration sensor obtains information related to acceleration. The illumination sensor obtains information related to brightness. The proximity sensor obtains information related to the proximity state of an object. Microphone 405 and speaker 406 are used for sound input and output, etc. Display device 407 is, for example, a touch panel, and also accepts touch input operations. LED 408 is used for lighting of camera 404, etc. In addition, LED 408 will be described later, including an LED for transmitting the position of millimeter wave antenna 71, etc. to the user by emitting light.

[0118] The first communication unit 411 is a communication unit that performs wireless communication using millimeter waves with the narrow area base station 2 and other terminals. The second communication unit 412 is a communication unit that performs wireless communication using microwaves with the narrow area base station 2 and other terminals. The third communication unit 413 is a communication unit that performs wireless communication using Bluetooth in this example with nearby devices.

[0119] The first communication unit 411 includes an antenna 61, an antenna switch 71, and a circuit 81. The antenna 61 is an antenna capable of transmitting and receiving using millimeter waves as electromagnetic waves. The antenna 61 of the first communication unit 411 is basically an array antenna. The antenna 61 can also be used as an antenna combined with a lens. The circuit 81 is a circuit such as a wireless IC equipped with a wireless communication interface processor, and performs transmission and reception processing related to wireless communication using millimeter waves under the control of the processor 401. The antenna switch 71 is connected between the antenna 61 and the circuit 81, and is also connected to the AC-DC converter 421. The processor 401 controls the state of the antenna switch 71 to control the connection state of the antenna 61 and the circuit 81.

[0120] The second communication unit 412 includes an antenna 62, an antenna switch 72, and a circuit 82. The antenna 62 is an antenna capable of transmitting and receiving using microwaves as electromagnetic waves. The circuit 82 performs a process of transmitting and receiving related to wireless communication using microwaves under the control of the processor 401. The antenna switch 72 is connected between the antenna 62 and the circuit 82. The processor 401 controls the state of the antenna switch 72 to control the state of the antenna 62 and the circuit 82.

[0121] The third communication unit 413 includes an antenna 63, an antenna switch 73, and a circuit 83. The antenna 63 is an antenna capable of transmitting and receiving using electromagnetic waves corresponding to Bluetooth. The circuit 83 performs the processing of transmitting and receiving related to wireless communication of Bluetooth under the control of the processor 401. The antenna switch 73 is connected between the antenna 63 and the circuit 83. The processor 401 controls the state of the antenna switch 73 to control the state of the antenna 63 and the circuit 83.

[0122] In Embodiment 1, the antenna 61 of the first communication unit 411 is a shared antenna that can correspond to both wireless data communication and wireless power supply. With respect to the shared antenna, wireless data communication and wireless power supply can be switched according to the state of the antenna switch 71. For example, with respect to the first communication unit 411, when wireless data communication is performed, the antenna 61 is connected to the circuit 81 by the antenna switch 71. For example, the circuit 81 processes information from the processor 401, sends a transmission signal to the antenna 61, processes a reception signal from the antenna 61, and sends information to the processor 401. When wireless power supply is performed, the antenna 61 is connected to the AC-DC converter 421 by the antenna switch 71. In the case of wireless power supply, the AC power received by the antenna 61 is converted into DC power in the AC-DC converter 421, and is charged to the battery pack 423 via the charging control circuit 422.

[0123] The communication control unit 401A controls the protocol processing of the wireless communication interface, etc. The communication control unit 401A determines the necessity of wireless data communication and generates a wireless data communication request (=connection request).

[0124] The power management unit 401B monitors and manages the remaining amount of the battery pack 423 and the power status, determines the necessity of wireless power supply based on the status, and generates a request for wireless power supply when necessary.

[0125] The antenna control unit 401C controls the switching of the antenna switches 71 to 73 so as to select the antenna and circuit of the communication unit 410 for use according to the schedule information J4.

[0126] The schedule management unit 401D stores and manages the schedule information J4 including the wireless resource allocation acquired from the narrow area base station 2 or the wireless power supply device 3 in the memory 402. The schedule management unit 401D controls the execution of wireless data communication and wireless power supply according to the schedule information J4.

[0127] [Wireless terminal device (1-2) - Wireless communication method]

[0128] Examples of wireless communication methods and wireless communication interfaces corresponding to the implementations in the communication control unit 401A and the communication unit 410 of the wireless terminal device 4 are as follows. (1) Wi-Fi (Japanese registered trademark), (2) LTE (Japanese registered trademark), (3) WiGig (Japanese registered trademark), (4) WiMAX (Japanese registered trademark), (5) Bluetooth, (6) 5G NR (New Radio) of 3GPP (3rd Generation Partnership Project). In particular, WiGig and New Radio are communication methods that also correspond to electromagnetic waves in the millimeter wave band. The first communication unit 411 has an implementation corresponding to WiGig or New Radio. The second communication unit 412 has an implementation corresponding to Wi-Fi, LTE, WiMAX, etc. The third communication unit 413 has an implementation corresponding to Bluetooth. The third communication unit 413 corresponds to a wireless communication interface different from the mobile network.

[0129] [Wireless terminal device (1-3) - Antenna switch]

[0130] Figure 7 The following is a configuration example of the antenna 61, antenna switch 71, and circuit 81 of the first communication unit 411 of the wireless terminal device 4. In this example, two antennas 61 corresponding to the millimeter wave band include antenna 61-1 and antenna 61-2. The circuit (wireless IC) 81 includes RFIC 81-1 (RF: Radio Frequency) and baseband IC 81-2.

[0131] The antenna switch 61 has eight terminals numbered #1 to #8. The antenna 61 (61-1, 61-2) is connected to the two terminals #5 and #6. The AC-DC converter 421 (i.e., the wireless power supply side) is connected to the two terminals #1 and #3. The RFIC 81-1 (i.e., the wireless data communication side) is connected to the two terminals #2 and #4. The processor 401 (particularly the antenna control unit 401C) is connected to the two terminals #7 and #8, i.e., the control terminals.

[0132] By inputting a control signal from the antenna control unit 401C to the control terminals (#7, #8), the connection destination (#1, #2, #3, #4) of the switch in the antenna switch 71 is selected. Table 701 shows the truth table of the antenna switch 71. In Table 701, depending on whether the input of the control terminals (#7 and #8) is "H" (High) or "L" (Low), the wireless power supply side or the wireless data communication side is selected as the connection destination of the switch, that is, the connection destination of the antenna 61. The input of #7 is used for switching related to the antenna 61-1 (#5), and the input of #8 is used for switching related to the antenna 61-2 (#6). For example, when the input of (#7, #8) is (H, H), (#1, #3) is selected as the connection destination of the antennas 61-1 and 61-2. That is, both antennas are connected to the AC-DC converter 421 (wireless power supply side). In the case of (L, L), (#2, #4) is selected as the connection destination of antennas 61-1 and 61-2. That is, both antennas are connected to RFIC81-1 (wireless data communication side). In the case of (H, L), antenna 61-1 is connected to the wireless power supply side, and antenna 61-2 is connected to the wireless data communication side. In the case of (L, H), antenna 61-1 is connected to the wireless data communication side, and antenna 61-2 is connected to the wireless power supply side. In addition, the switch in the antenna switch can also be in the off state according to control. For example, when the switch connected to antenna 61-1 is in the off state, it becomes a state where neither terminal #1 nor terminal #2 is connected to terminal #5. In this off state, neither wireless power supply nor wireless data communication is performed.

[0133] The processor 401 (particularly the plan management unit 401D) obtains the plan information J4 from the narrow area base station 2 or the wireless power supply device 3 and stores it in the memory 402. The plan management unit 401D controls the execution of wireless data communication and wireless power supply in accordance with the plan information J4 in the memory 402 by cooperating with the antenna control unit 401C and the like. In accordance with the control, the antenna control unit 401C provides a control signal to the antenna switch 71. In accordance with the control, the wireless communication unit 401A controls the operation of the circuit 81. In accordance with the control, the power management unit 401B controls the operation of the charging control circuit 422.

[0134] [Wireless Terminal Device (1-4) - Modification Example]

[0135] Figure 8 Shows the Figure 6 A configuration of a wireless terminal device 4 according to a modified example. Figure 8 Variations of Figure 6The difference in structure is as follows. In the wireless terminal device 4, as AC-DC converters, two converters, namely the first AC-DC converter 421-1 and the second AC-DC converter 421-2, are provided in parallel. In the communication unit 410, the antenna switch 71 of the first communication unit 411 is connected to the first AC-DC converter 421-1, and the antenna switch 72 of the second communication unit 412 is connected to the second AC-DC converter 421-2. That is, in this structure, any of the first communication unit 411 in the millimeter wave band and the second communication unit 412 in the microwave band can charge the battery pack 423.

[0136] In this modification, antenna 61 of first communication unit 411 and antenna 62 of second communication unit 412 are shared antennas that can support both wireless data communication and wireless power supply. The shared antenna can switch between wireless data communication and wireless power supply according to the states of antenna switches 71 and 72.

[0137] The structure of the AC-DC converter is not limited to this. It is also possible to combine the two AC-DC converters into one AC-DC converter and share them. However, in the case of forming this shared structure, the first communication unit 411 corresponds to the millimeter wave band and the second communication unit 412 corresponds to the microwave band, so a wide-band AC-DC converter is required.

[0138] [Wireless terminal device (1-5) - Appearance]

[0139] Fig. 9 A configuration example related to the appearance of the wireless terminal device 4 , particularly a configuration example related to the antenna in the case of a smartphone, is shown. Fig. 9 (A) shows the structure of the plane (set as the x-y plane) on the side of the front surface s1 having the display screen in the frame of the wireless terminal device 4, and (B) shows the structure of the plane on the side of the back surface s2. The x direction corresponds to the short side, and the y direction corresponds to the long side. On the front surface s1, as the main rectangular area, there is a display screen 900 as a touch panel of the display device 407. In the frame area outside the display screen 900 on the front surface s1, a home button 903, a built-in camera 404-1 (especially the lens part) of the camera 404, a speaker 406, etc. are provided. Near the side of the frame, a microphone 405, etc., which is not shown, is provided. On the back s2, an external camera 404-2 (especially the lens part) of the camera 404, etc. are provided.

[0140] In addition, in the frame of the wireless terminal device 4, the antenna 62 (62-1, 62-2) of the second communication unit 412 in the microwave band is provided, which is shown by a dotted line. In this example, in the top view of the front surface s1 and the back surface s2 of the frame, two antennas 62-1 and 62-2 are provided at the upper and lower positions of the long side (y direction) in the frame area. In particular, the upper antenna 62-1 is an antenna corresponding to Wi-Fi, and the lower antenna 62-2 is an antenna corresponding to LTE and New Radio.

[0141] In addition, within the frame of the wireless terminal device 4, the antenna 61 (61-1 to 61-4) of the first communication unit 411 of the millimeter wave band is provided in a state where a portion is exposed on the front surface s1 and the back surface s2. In this example, a total of four antennas 61-1 to 61-4 are specially provided as exposed antenna units at the left and right positions of the upper and lower sides of the long side (y direction) of the frame area. In detail, the antenna 61-1 is provided at the upper right position of the front surface s1, the antenna 61-2 is provided at the lower left position of the front surface s1, the antenna 61-3 is provided at the upper right position of the back surface s2, and the antenna 61-4 is provided at the lower left position of the back surface s2.

[0142] Fig.10 Show Fig. 9 A portion of the cross section (set as the x-z plane) of the line A-A of the lower side of the front surface s1 of (A). On the substrate 1001 in the housing of the wireless terminal device 4, millimeter wave band antennas 61 (61-2, 62-4) are mounted on the front surface s1 side and the back surface s2 side, respectively. Each antenna 61 is composed of components such as an antenna component 611, an LED element 612 (a part of LED408), and a light guide component 613. For example, the antenna 61-2 of the front surface s1 has an antenna component 611-2, an LED element 612-2, and a light guide component 613-2. The antenna 61-4 of the back surface s2 has an antenna component 611-4, an LED element 612-4, and a light guide component 613-4.

[0143] The light guide member 613 is transparent and guides the light emitted by the LED element 612 so that the light is emitted from the exposed area of ​​the front surface s1 or the rear surface s2 (i.e. Fig. 9 The components are arranged so that the light guide component 613 overlaps the upper side of the antenna member 611 in the thickness direction of the frame (z direction). The surface of the light guide component 613 is exposed in a manner that is almost flush with the front surface s1 and the back surface s2.

[0144] The processor 401 controls the LED element 612 to emit light when the antenna 61 of the millimeter wave band is used, for example, when wireless power is supplied. As a result, the light guide component 613 of the antenna 61 at the front surface s1 and the back surface s2 emits light. The position of the light guide component 613 corresponds to the position of the antenna member 611. As a result, the position of the millimeter wave antenna 61 (antenna unit) can be easily understood by light to the user. The antenna 61 (61-1, 61-3) at the upper side also has the same structure.

[0145] [Wireless power supply device (1-1)]

[0146] Fig.11 1 shows a block configuration of the wireless power supply device 3. The wireless power supply device 3 includes a processor 301, a memory 302, a sensor 303, a camera 304, a display device 307, an LED 308, a communication unit 310, a first power transmission unit 311, a second power transmission unit 312, a power supply control circuit 321, a power supply 322, and the like.

[0147] The processor 301 is composed of a CPU and the like, and controls the entire wireless power supply device 3, controls the power transmission (i.e., electromagnetic wave transmission) during wireless power supply, etc. The processor 301 controls to supply power from the power supply 322 to the power transmission unit (the first power transmission unit 311, the second power transmission unit 312) via the power supply control circuit 321 during wireless power supply. The processor 301 has a communication control unit 301A, a power transmission control unit 301B, a plan management unit 301C, and a terminal information management unit 301D as a processing unit implemented by program processing, etc.

[0148] The communication unit 310 corresponds to a wireless communication interface device for performing wireless communication with the narrow area base station 2 and the wireless terminal device 4. The communication unit 310 includes an antenna 311A, an antenna switch 311B, and a circuit (wireless IC) 311C. The first power transmission unit 311 performs wireless power supply based on the millimeter wave band. The second power transmission unit 312 performs wireless power supply based on the microwave band. Each power transmission unit includes an antenna, an antenna switch, a circuit, etc. The first power transmission unit 311 includes an antenna 311a, an antenna switch 311b, and a circuit 311c. The second power transmission unit 312 includes an antenna 312a, an antenna switch 312b, and a circuit 312c.

[0149] The communication control unit 301A controls the wireless communication of the communication unit 310. The power transmission control unit 301B controls the wireless power transmission performed by the power transmission units (the first power transmission unit 311 and the second power transmission unit 312). The plan management unit 301C stores the plan information J3 acquired from the narrow area base station 2 in the memory 302 and manages it. The plan management unit 301C controls the execution of wireless power transmission in accordance with the plan information J3 by cooperating with each part. The terminal information management unit 301D acquires the terminal information JT from the wireless terminal device 4, stores it in the memory 302, and grasps and manages the status of the wireless terminal device 4 based on the terminal information JT and the like.

[0150] [Wireless power supply device (1-2)]

[0151] Fig.12 FIG. 2 shows an example of the structure of the appearance of the wireless power supply device 3. Fig.12 (A) shows a three-dimensional structure, and (B) shows a structure when viewed from above vertically. The wireless power supply device 3 is provided with an antenna unit 331 having a substantially triangular prism shape for the support 330 as the main body. An antenna 362 is provided on the top surface of the support 330 and the antenna unit 331 as a microwave antenna corresponding to the microwave band. The antenna 362 has, for example, a disk shape. The antenna 362 corresponds to Fig.11 The antenna 312a of the second power transmission unit 312.

[0152] In addition, antennas A1, A2, and A3 are provided on the three side surfaces of the triangular prism of the antenna unit 331 as millimeter wave antennas corresponding to the millimeter wave band. The antennas 361 (A1 to A3) correspond to Fig.11 The antenna 311a of the first power transmission unit 311 is composed of an array antenna. That is, for example, on the surface of the antenna A1, although not shown, a plurality of small antennas (array antenna elements) are arranged.

[0153] In (B), each antenna A1 to A3 of the antenna 361 faces its own direction, in this example, the direction d1 to d3 obtained by dividing the horizontal 360 degrees into three equal parts. The direction of the antenna 361 and the side surface is the surface perpendicular direction. In addition, by forming a structure that allows the antenna unit 311 to rotate relative to the support 330, the direction of the three side surfaces of the antenna 361 can be adjusted by the user.

[0154] In addition, in this example, cameras 304 (304-1 to 304-3) are respectively provided on the surfaces of the antennas 361 (A1 to A3) as shown in the figure. For example, each camera 304 (particularly a lens unit) is provided near the upper side of each side surface and at a position avoiding the array antenna element. The photographing direction of each camera 304 (i.e., the optical axis of the lens unit) is the same as the directions d1 to d3 of each antenna A1 to A3 and each side surface. The wireless power supply device 3 can grasp the existence and position (particularly the position of the aforementioned antenna 61) of the wireless terminal device 3 that is the object of wireless power supply based on the image of the camera 304. In particular, the wireless power supply device 3 can grasp whether there is an antenna 61 of the wireless terminal device 3 within a predetermined range centered on the direction of the antenna 361 (A1 to A3) (directions d1 to d3), whether there is an obstruction in that direction, etc.

[0155] The structure of the wireless power supply device 3 is not limited to the above-mentioned structure example. For example, it can also be a structure without the camera 304. In addition, for example, regarding the antenna 361 and the antenna unit 331, it can have more than four sides and directions, or it can have less than two sides and directions. In addition, for example, the position of the camera 304 can be the center position of the surface of the antenna 361, or it can be a position different from the surface of the antenna 361.

[0156] [Millimeter wave wireless power supply, expected relationship (1)]

[0157] Fig.13 An example of the positional relationship between the wireless power supply device 3 and the wireless terminal device 4 when wireless power supply using millimeter waves is performed is shown. Fig.13 (A) shows the outline in three dimensions, and in particular shows the "expected relationship" between the millimeter wave band antenna 361 (e.g., antenna A1) of the wireless power supply device 3 and the millimeter wave band antenna 61 of the wireless terminal device 4. The approximate position of the wireless power supply device 3 in the space is set to position P3, and the approximate position of the wireless terminal device 4 is set to position P4. The distance between position P3 and position P4 is set to be less than several meters.

[0158] In this example, the antenna A1 of the wireless power supply device 3 and the antenna 61 (61-1, 61-2) of the front surface s1 of the wireless terminal device 4 are arranged approximately opposite to each other. Line E1 is a line connecting the antenna A1 and the antenna 61-1, and line E2 is a line connecting the antenna A1 and the antenna 61-2. When the direction of the line between such antennas is within a predetermined range that is sufficiently close to the direction d1 of the antenna A1, wireless power supply using millimeter waves can be efficiently performed. When the direction of the line between such antennas is outside the predetermined range centered on the direction d1 of the antenna A1, wireless power supply cannot be efficiently performed. In addition, when there is an obstruction OB on the line between the antennas, the millimeter waves are blocked, so that wireless power supply cannot be performed efficiently, or wireless power supply cannot be performed.

[0159] Fig.13 (B) shows an example of a configuration when viewed from vertically above. In particular, it shows a case where the line E1 between the antennas is almost consistent with the direction d1 of the antenna A1. In this case, the antenna 61-1 corresponding to the line E1 can be used to perform the most efficient wireless power supply. Even when the antenna 61-2 corresponding to the line E2 is used, sufficiently efficient wireless power supply can be performed.

[0160] In addition, Fig.13 In the configuration example of (C), a situation is particularly shown in which there is no line that forms the "expected relationship" that enables efficient wireless power supply with respect to the direction d1 of the antenna A1. The direction Ds1 represents the surface perpendicular direction of the front surface s1 of the wireless terminal device 4, and the direction Ds2 represents the surface perpendicular direction of the back surface s1. The directions of the antennas 61-1 and 61-2 on the front surface s1 are the same as the direction Ds1. The directions of the antennas 61-3 and 61-4 on the back surface s2 are the same as the direction Ds2. In accordance with the state of the orientation (posture) of the wireless terminal device 4, the difference between the direction d1 of the antenna A1 and the directions Ds1 and Ds2 of the wireless terminal device 4 is large. Therefore, a good "expected relationship" cannot be formed.

[0161] As mentioned above, it is particularly important that when using electromagnetic waves in the millimeter wave band for wireless data communication or wireless power supply, the wireless base station or wireless power supply device 3 and the wireless terminal device 4 are in an "expected relationship". That is, the "expected relationship" refers to a state in which, for example, an object that blocks the millimeter wave is not on the straight line that connects the wireless power supply device 3 and the wireless terminal device 4, taking into account the transmission and reception of millimeter waves on the straight line. In addition, the "expected relationship" refers to a state in which the difference between the direction of the antenna of the wireless power supply device 3 and the direction of the antenna of the wireless terminal device 4 is small enough. In addition, the ideal situation of the "expected relationship" refers to a state in which the antenna of the wireless power supply device 3 and the antenna of the wireless terminal device 4 are opposite to each other in the absence of any obstruction.

[0162] [Millimeter wave wireless power supply, expected relationship (2)]

[0163] Fig.14 Showing user holding Fig. 9 An example of the state when operating and maintaining the wireless terminal device 4. The attenuation of electromagnetic waves in the millimeter wave band is more significant than that of microwave electromagnetic waves. Therefore, it is best that when performing wireless power supply in the millimeter wave band, the antenna 61 in the millimeter wave band is configured so that it is not blocked by the user's hand, body, etc. when observed from the antenna 361 of the wireless power supply device 3. In addition, the linear propagation of electromagnetic waves in the millimeter wave band is higher than that of microwave electromagnetic waves, in other words, the directionality is strong. Therefore, in order to perform efficient wireless power supply, high precision is required regarding the positional relationship of wireless power supply based on millimeter waves, that is, the position of each antenna 61, 361.

[0164] exist Fig.14 In the example of the state, when the user holds the wireless terminal device 4 with the left hand, the millimeter wave antenna 61 (61-3, 61-4) on the back s2 is not covered by the hand and is exposed. In other words, the position of the antenna 61 is designed so that it is not easily covered in such a hand-held state. In this hand-held state, the antenna 61 can be relatively close to the antenna 361 ( Fig.13 ) form the expected relationship.

[0165] In addition, in the case where a plurality of antennas, in particular, a millimeter wave antenna 61, are provided at a plurality of different positions in the frame of the wireless terminal device 4 as in the present example, a method of dividing the antennas to be used can also be applied during scheduling. In other words, in this method, the electromagnetic waves to be used are spatially separated by separating the antennas. Thus, interference between electromagnetic waves can be prevented or reduced. For example, in the case where a wireless terminal device 4 wants to perform both wireless data communication using millimeter waves and wireless power supply using millimeter waves, the following situation can be achieved as an example of scheduling. That is, one antenna (for example, antenna 61-3) is allocated for wireless data communication, and another antenna (for example, antenna 61-4) is allocated for wireless power supply. In this case, it is also possible to use these antennas to perform wireless data communication and wireless power supply simultaneously and in parallel.

[0166] [Wireless Terminal Device - Processing Flow]

[0167] Fig.15 The following is a flow of processing related to charging control of the battery pack 423 in the wireless terminal device 4. Fig.15The process has steps S401 to S414. Hereinafter, the description will be made in the order of the steps. This processing flow corresponds to the function of being able to perform automatic charging using wireless power supply when the remaining amount of the battery module 423 decreases. Thereby, even when the user forgets to charge with the AC adapter 424, when the wireless terminal device 4 is within the range of the wireless power supply device 3, the battery module 424 can be automatically charged.

[0168] In S401, the power management unit 401B of the wireless terminal device 4 ( Figure 6 ) monitors the terminal voltage of the battery module 423 via the charging control circuit 422 and reads its terminal voltage value (denoted as VB). In S402, the power management unit 401B uses the preset threshold Vth1 and threshold Vth2 (Vth1 > Vth2) related to the terminal voltage value VB to determine the magnitude of the terminal voltage value VB at that time relative to these thresholds. When the terminal voltage value VB is smaller than the threshold Vth1 (Y) (VB < Vth1), it proceeds to S403. In S403, the power management unit 401B performs a warning display on the display device 407. The warning display is, for example, the display of information such as "Please charge the battery module" that urges the user to charge. In addition, similarly, voice output can also be used. In S404, when the AC adapter 424 is connected within a predetermined time from the warning display (Y), the power management unit 401B proceeds to S405, and when it is not connected (N), it proceeds to S406. In S405, the power management unit 401B starts charging the battery module 423 via the AC adapter 424 and the power control circuit 422.

[0169] In S406, the power management unit 401B reads the terminal voltage value VB of the battery module 423 again. In S407, when the terminal voltage value VB is smaller than the threshold Vth2 (Y) (VB < Vth2), it proceeds to S408. In S408, the power management unit 401B performs a warning display on the display device 407. The warning display is, for example, the display of information such as "Charge the battery module" that automatically performs charging.

[0170] In S409, the power management unit 401B sends a wireless power supply request as a charging request to the narrow area base station 2. In S410, the power management unit 401B receives a wireless power supply approval from the narrow area base station 2. In S411, the plan management unit 401D receives the plan information J4 from the narrow area base station 2. In S412, the plan management unit 401D sends a plan acceptance notification to the narrow area base station 2. In S413, the antenna control unit 401C switches the antenna switch 71 in accordance with the plan information J4, for example, in such a way that the antenna 61 of the first communication unit 411 is connected to the AC-DC converter 421 on the charging side (wireless power supply side). In S414, the power management unit 401B charges the battery pack 423 via the AC-DC converter 421 and the power control circuit 422 according to the received power from the antenna 61.

[0171] [Wireless power supply device - process flow]

[0172] Fig.16 The following is a flow of processing related to control of wireless power supply in the wireless power supply device 3 . Fig.16 The process has steps S301 to S308. The following is described in the order of the steps. In S301, the wireless power supply device 3 confirms whether a wireless power supply request is received from the wireless terminal device 4 or the narrow area base station 2 or the wide area base station 1. In the case of receiving (Y), it enters S302. In S302, the wireless power supply device 3 obtains the terminal information JT related to the wireless terminal device 4 that is the object in the wireless power supply request. Alternatively, the wireless power supply device 3 refers to the terminal information JT that has been obtained in the memory 302. In S303, the wireless power supply device 3 determines whether wireless power supply can be performed for the wireless power supply device 4 that is the object based on the wireless power supply request and the terminal information JT. When the wireless power supply device 3 approves the wireless power supply request, it sends the wireless power supply approval to the narrow area base station 2 or the wide area base station 1. In S304, the wireless power supply device 3 receives a plan notification (plan information J3) from the narrow area base station 2 or the wide area base station 1. The wireless power supply device 3 saves the acquired plan information J3 in the memory 302. In S305, the wireless power supply device 3 sends a plan acceptance notification to the narrow area base station 2 or the wide area base station 1. In S306, the wireless power supply device 3 controls the state of the power transmission unit as a preparation for wireless power supply according to the plan information J3, and sends a wireless power supply start notification to the narrow area base station 2 or the wide area base station 1. In S307, the wireless power supply device 3 starts wireless power supply to the wireless terminal device 4.

[0173] [Wireless resources and plans]

[0174] Fig.17 An example of wireless resources and plans is shown. Fig.17In the table, wireless resources and plans are represented by an array with the horizontal axis set to time (time slot) and the vertical axis set to channel (frequency). One square of the table represents a wireless resource unit. In this example, a case where there are channels c1 (frequency f1) to channel c12 (frequency f12) as multiple channels (i.e., frequencies) that can be used in area 101 is shown. In this example, a portion of time t1 to t12 is shown. In area 101, there are multiple (for example, 5) wireless terminal devices 4 (set to ID = MT1 to MT5). An example of scheduling is as follows.

[0175] For wireless terminal device MT1, channel c1 (frequency f1) and channel c2 (frequency f2) are allocated during time t1 to t12 for wireless data communication (indicated by a dot pattern). Also, for wireless terminal device MT2, channel c3 (frequency f3) and channel c4 (frequency f4) are allocated during time t1 to t6 for wireless data communication, and channel c3 (frequency f3) and channel c4 (frequency f4) are allocated during time t7 to t12 for wireless power supply (indicated by a diagonal pattern). Also, for wireless terminal device MT3, channel c5 (frequency f5) and channel c6 (frequency f6) are allocated during time t1 to t12 for wireless power supply. In addition, for the wireless terminal device MT4, for wireless power supply, channel c7 (frequency f7) and channel c8 (frequency f8) are allocated during the period of time t1 to t6, and for wireless data communication, channel c7 (frequency f7) and channel c8 (frequency f8) are allocated during the period of time t7 to t12. In addition, for the wireless terminal device MT5, for wireless data communication, channel c9 (frequency f9) and channel c10 (frequency f10) are allocated during the period of time t1 to t6, and channel c11 (frequency f11) and channel c12 (frequency f12) are allocated during the period of time t7 to t12.

[0176] [Wireless Communication Sequence (1)]

[0177] Fig.18 An example of a sequence of wireless communications when a request for normal wireless data communications is generated is shown. In addition, only scheduling (ie, wireless resource allocation) is performed here with respect to wireless data communications. Fig.18 The following steps S11 to S20 are included.

[0178] In S11, the wireless terminal device 4 transmits a connection request as a wireless data communication request to the wide area base station 1. The wide area base station 1 grasps the wireless data communication request. In S12, the wide area base station 1 transmits information of the corresponding connection request to the narrow area base station 2. In S13, the narrow area base station 2 transmits information of the corresponding connection request to the wireless power supply device 3. In S14, when the wide area base station 1 approves the connection of the wireless data communication, it transmits a connection approval notification to the wireless terminal device 4. In addition, in S15, the wide area base station 1 transmits a corresponding connection approval notification to the narrow area base station 2. In S16, the narrow area base station 2 transmits corresponding connection approval information to the wireless power supply device 3. In S17, the wireless terminal device 4 transmits a connection completion notification to the wide area base station 1 in accordance with the reception of the connection approval in S14. In S18, the wide area base station 1 transmits a corresponding connection completion notification to the narrow area base station 2. In S19, the narrow area base station 2 transmits corresponding connection completion information to the wireless power supply device 3. In S20, the wireless terminal device 4 performs wireless data communication via the wide area base station 1.

[0179] As described above, the wireless power supply device 3 and the narrow area base station 2 obtain information and status related to the wireless data communication request of the wireless terminal device 4 through the wide area base station 1 and grasp them. In addition, as examples of the content of normal wireless data communication, there can be cited the case where a call is made from the wireless terminal device 4 to an external wireless terminal device, and the case where a call is received from an external wireless terminal device to the wireless terminal device 4. As another example, there can be cited the case where data is sent and received between the wireless terminal device 4 and an external server device. As another example, there can be cited such as Figure 2 In this way, the wireless terminal device 4 communicates with other wireless terminal devices 4 and other devices 6 that exist in the vicinity of the wireless terminal device 4 in the area 101.

[0180] [Wireless Communication Sequence (2)]

[0181] Fig.19 An example of a sequence of wireless communication is shown (referred to as the first sequence). The first sequence indicates that Fig.18 The sequence of wireless communication when the wireless terminal device 4 (set as ID=MT1) which has completed the wireless data communication connection (i.e., the connection to the wireless communication network) further receives wireless power supply from the wireless power supply device 3 (set as ID=PS1). Fig.19 In the figure, the control communication and other operations between the wireless base station, the wireless power supply device 3 (PS1) and the wireless terminal device 4 (MT1) are shown. In addition, here, the wide area base station 1 and the narrow area base station 2 are combined into one and shown as a wireless base station. In the first sequence, an example is shown in which the wide area base station 1 performs scheduling and uses a time separation method. The first sequence has the following steps S21 to S32.

[0182] In S21, the wireless terminal device 4 Fig.18 That is the state of wireless connection. That is, for the wireless terminal device 4, a certain wireless resource (for example, set to frequency F1) has been allocated for wireless data communication. In S22, the wireless terminal device 4 determines the necessity of charging the battery pack 423, and when it is determined to be necessary, sends a wireless power supply request to the wide area base station 1 together with the terminal information JT. The terminal information JT includes various information such as the ID, type, location, device structure information, and status of the wireless terminal device 4. The device structure information includes, for example, information such as the type and number of antennas of the communication unit 410. The status includes power status, such as the charging status of the battery pack 423. In S22, the wireless terminal device 4 can send the wireless power supply request to the wide area base station 1 through the narrow area base station 2, or directly send the wireless power supply request to the wide area base station 1.

[0183] In S23, the wide area base station 1 receives the wireless power supply request accompanying the terminal information JT, and compiles it, and sends the corresponding wireless power supply request to the wireless power supply device 3 through the narrow area base station 2. In S24, when the wireless power supply device 3 approves the execution of the wireless power supply related to the received wireless power supply request, it sends the wireless power supply approval to the wide area base station 1 through the narrow area base station 2. The wireless power supply approval information may also include information on wireless resources (time, frequency, antenna, etc.) that can be used by the wireless power supply device 3 for wireless power supply.

[0184] In S25, the wide area base station 1 performs scheduling related to both wireless power supply and wireless data communication based on the reception of the wireless power supply approval. The wide area base station 1 makes a plan (corresponding plan information) in a manner that prevents or reduces interference between wireless power supply and wireless data communication based on the wireless resources that can be used at that time. In this example, the wide area base station 1 performs the latest scheduling including re-evaluation of the existing plan based on the wireless resources such as the frequency F1 allocated to the wireless data communication by the wireless terminal device 4 that has been wirelessly connected, and the frequency that is idle at that time. The plan information includes information on the allocation of wireless resources for both wireless data communication and wireless power supply. When scheduling, the wireless resources (including time and frequency) related to the requested wireless power supply are allocated based on the importance and priority of the existing wireless data communication and the importance and priority of the requested wireless power supply.

[0185] Specifically, in this example, the wide area base station 1 switches the wireless terminal device 4 from the state of performing wireless data communication to the state of performing wireless power supply in accordance with the time separation method and the frequency separation method. For example, the state of performing wireless data communication using the microwave band antenna 62 and the frequency F1 in the second communication unit 412 of the wireless terminal device 4 is switched to the state of performing wireless power supply using the millimeter wave band antenna 61 and the frequency F2 (a frequency different from the frequency F1) in the first communication unit 411. In this case, in the wireless data communication and the wireless power supply, the time and frequency are separated to prevent interference.

[0186] In S26, after the wireless resources of the requested wireless power supply are incorporated into the plan, the wide area base station 1 notifies the wireless terminal device 4 of the wireless power supply approval. In addition, in S27, the wide area base station 1 notifies the wireless terminal device 4, the narrow area base station 2, and the wireless power supply device 3 of the latest plan information produced. That is, each device receives the plan information and grasps it. The wireless terminal device 4 obtains the aforementioned plan information J4, and the wireless power supply device 3 obtains the aforementioned plan information J3. In S28, the wireless terminal device 4, the narrow area base station 2, and the wireless power supply device 3 each send a plan acceptance notification to the wide area base station 1. The plan acceptance notification is a notification of confirmation of the acceptance of the plan information.

[0187] In S29, the wireless terminal device 4 switches the antenna switch in accordance with the schedule information J4 so that the state of the communication unit 410 is switched from the wireless data communication side to the wireless power supply side. That is, the wireless terminal device 4 prepares for performing wireless power supply. In S30, the wireless power supply device 3 transmits a wireless power supply start notification to the wide area base station 1 and to the wireless terminal device 4 through the narrow area base station 2 in accordance with the schedule information J3. In S31, the wireless power supply device 3 starts wireless power supply between the wireless terminal device 4 and the wireless terminal device 4 in accordance with the schedule information J3. The wireless terminal device 4 receives the wireless power supply from the wireless power supply device 3 and charges the battery pack 423 with the received power. In S32, when the wireless power supply according to the schedule information J3 is terminated, the wireless power supply device 3 transmits a wireless power supply termination notification to the wide area base station 1 through the narrow area base station 2. The wide area base station 1 receives the wireless power supply termination notification and grasps the state of each device. In this way, in the wireless power supply and the wireless data communication, the scheduling is performed in a manner so that the time and frequency to be used are separated, so that interference between the two can be prevented.

[0188] [Wireless Communication Sequence (3)]

[0189] Fig. 20Another example of a sequence of wireless communication is shown (referred to as the second sequence). In the second sequence, the following scheduling is shown. It is assumed that there are two wireless terminal devices 4 (41, 42) within the area 101 within the range where one wireless power supply device 3 can supply power. It is assumed that while one wireless terminal device 41 is receiving wireless power at the frequency F1, another wireless terminal device 42 that is already wirelessly connected generates a wireless power supply request. Fig. 20 The sequence has the following steps S41 to S50.

[0190] In S41, the wireless terminal device 41 is performing wireless power supply through the allocation of frequency F1 with the wireless power supply device 3 according to the existing plan. In addition, the wireless terminal device 42 is in a state of connection for wireless data communication through the allocation of a predetermined frequency. In S42, the wireless terminal device 42 sends a wireless power supply request to the wireless base station (wide area base station 1) based on the judgment of the necessity of charging, and the wide area base station 1 sends the corresponding wireless power supply request to the wireless power supply device 3 through the narrow area base station 2. In S43, the wireless power supply device 3 sends a wireless power supply approval to the wide area base station 1 through the narrow area base station 2.

[0191] In S44, the wide area base station 1 performs scheduling based on the wireless power supply request and the wireless power supply approval. At this time, the wide area base station 1 makes the latest plan related to wireless data communication and wireless power supply based on the allocation status of wireless resources of multiple wireless terminal devices 4 (41, 42) and the status of idle wireless resources. Specifically, in this example, when scheduling, the wide area base station 1 allocates a frequency different from the frequency F1 of wireless power supply of the wireless terminal device 41 in the same time period, such as frequency F2, as the wireless resource for wireless power supply of the wireless terminal device 42. This example is different from Fig.17 The scheduling of the wireless terminal devices MT2 and MT3 is the same.

[0192] In S45, the wide area base station 1 sends the wireless power supply approval to the wireless terminal device 42 and the wireless terminal device 41. In addition, in this example, the wide area base station 1 sends the corresponding wireless power supply approval information not only to the wireless terminal device 42 that has made the wireless power supply request, but also to the other wireless terminal devices 41. In S46, the wide area base station 1 sends the plan notification to the narrow area base station 2, the wireless power supply device 3, the wireless terminal device 41, and the wireless terminal device 42. In addition, in this example, the wide area base station 1 sends the corresponding plan notification not only to the wireless terminal device 42, but also to the wireless terminal device 41. The wireless power supply device 3 obtains the plan information J3, and the wireless terminal device 41 and the wireless terminal device 42 obtain the plan information J4.

[0193] In S47, each of the narrow area base station 2, the wireless power supply device 3, the wireless terminal device 41, and the wireless terminal device 42 sends a plan acceptance notification to the wide area base station 2. In S48, the wireless terminal device 42 switches the antenna switch so that the antenna is connected to the wireless power supply side, and prepares for wireless power supply. In S49, the wireless power supply device 3 sends a wireless power supply start notification to the wide area base station 1 through the narrow area base station 2. The wide area base station 1 sends the corresponding wireless power supply start notification to the wireless terminal device 42 and the wireless terminal device 42 through the narrow area base station 2. The wireless power supply start notification at this time is a notification that the wireless power supply device 3 starts wireless power supply to the wireless terminal device 42 using the frequency F2.

[0194] In S50, the wireless power supply device 3 then continues to perform wireless power supply using the frequency f1 for the wireless terminal device 41. The wireless power supply device 3 starts wireless power supply for the wireless terminal device 42 using a new frequency F2. The wireless terminal device 42 receives the wireless power supply at the frequency F2 and charges the received power to the battery module 423. Afterwards, when each wireless power supply is terminated, the wireless resources are released according to the wireless power supply termination notification. The wireless base station can use the released wireless resources in a new schedule. As described above, in the example of the second sequence, the frequencies of the wireless power supply in the same time period are separated for multiple wireless terminal devices 4, so that interference can be prevented.

[0195] In addition, in the above, it is shown that Figure 1 The sequence is as follows when the narrow area base station 2 and the wireless power supply device 3 are independent. Figure 2 The same control can be realized even when the narrow area base station 2 and the wireless power supply device 3 are integrated as the wireless base station power supply device 5. In this case, the wireless communication between the narrow area base station 2 and the wireless power supply device 3 is reduced.

[0196] In addition, in the above, the sequence is shown when the wide area base station 1 performs scheduling, but the same control can be achieved even when the narrow area base station 2 or the wireless base station power supply device 5 performs scheduling. In addition, the scheduling target area may be different when the wide area base station 1 performs scheduling and when the narrow area base station 2 performs scheduling. When the narrow area base station 2 performs scheduling, the scheduling target area may be limited to the area 101. When the wide area base station 1 performs scheduling, the scheduling target area is set to an area larger than the area 101.

[0197] In the second sequence, it is also assumed that a plurality of wireless terminal devices 4 cooperate with each other, and a method of notifying both the wireless terminal device 41 and the wireless terminal device 42 of the plan notification and the wireless power supply start notification is adopted, but it is not limited to this. A method of notifying only the wireless terminal device 42 as the target of the plan notification and the like may also be adopted.

[0198] [Wireless communication sequence (4) - Highest priority data communication]

[0199] Fig.21 Another example of a sequence of wireless communication is shown (set as the third sequence). In this example, a request for a type of wireless data communication (recorded as "highest priority data communication") that is distinguished from normal (in other words, ordinary) wireless data communication and has a higher importance and priority than the normal (in other words, ordinary) wireless data communication is generated as wireless data communication. In this example, one wireless terminal device 41 among a plurality of (for example, two) wireless terminal devices 4 (41, 42) in area 101 is set to a state in which it is in the process of receiving wireless power from the wireless power supply device 3 using the frequency F1. Moreover, at this time, with respect to the other wireless terminal device 42, a request for the highest priority data communication is generated in a state where the wireless data communication is already connected. Fig.21 The sequence has the following steps S61 to S80.

[0200] Here, the highest priority data communication is wireless data communication (communication on at least one side of sending or receiving) of the nature of ultra-reliable and low-latency communication (URLLC). URLLC is continuous real-time communication, preferably non-disconnected communication. URLLC is used, for example, in remote surgery, automatic driving of vehicles, etc. URLLC is not limited to control within a single narrow area base station 2 (corresponding area 101) to which the wireless terminal device 4 belongs, but there is also a situation of communication between other wireless terminal devices 4 and other devices within the jurisdiction of a wide area base station 1 that is different from the wide area base station 1 to which the narrow area base station 2 belongs. Due to its nature, URLLC also envisions the use of the entire channel of the millimeter wave band, for example.

[0201] In S61, the wireless terminal device 41 uses the frequency F1 to perform wireless power supply from the wireless power supply device 3 according to the existing plan. In addition, the wireless terminal device 42 is in a connected state for wireless data communication using a predetermined frequency. In S62, the narrow area base station 2 receives a URLLC request from the wide area base station 1 as an interrupt signal. In the wide area base station 1, the URLLC request is received from other wide area base stations through the core network, etc. The URLLC is set to the wireless terminal device 42. In S63, the wireless terminal device 42 also receives the URLLC request through the wide area base station 1 and the narrow area base station 2 at approximately the same time.

[0202] In S64, the narrow area base station 2 grasps the fact that the wireless data communication for the wireless terminal device 42 as the target is a high priority type based on the URLLC request. In addition, at this time, the narrow area base station 2 also grasps the fact that the wireless terminal device 41 is in the state of wireless power supply. In order to prevent URLLC from interfering with other wireless data communications and wireless power supply, the narrow area base station 2 determines that URLLC should be set as the highest priority. Therefore, first, in S64, the narrow area base station 2 sends a wireless power supply stop request related to the wireless power supply in execution to the wireless power supply device 3. In S65, the wireless power supply device 3 immediately stops the wireless power supply for the wireless terminal device 41 in response to the reception of the wireless power supply stop request. In addition, at this time, the wireless power supply device 3 sends a wireless power supply stop notification to the narrow area base station 2 and the wireless terminal device 41.

[0203] In S66, the wireless terminal device 41 that has received the wireless power supply stop notification switches the antenna switch so that the antenna is connected from the wireless power supply side to the wireless data communication side. In addition, the wireless terminal device 4 is usually based on wireless data communication, so the antenna is connected to the wireless data communication side.

[0204] In S67, the narrow area base station 2 performs scheduling taking URLLC into consideration. For example, time and frequency are preferentially secured for URLLC of the wireless terminal device 42. Then, in S68, the narrow area base station 2 starts URLLC for the wireless terminal device 42 in accordance with the schedule notification. Along with this, the wireless terminal device 42 performs URLLC wireless data communication with an external target object side device through the narrow area base station 2 and the wide area base station 1.

[0205] In S69, on the other hand, after the wireless power supply is stopped in S65, the wireless terminal device 41 transmits a re-powering request as a request for restarting the wireless power supply to the narrow area base station 2 at a regular timing, for example. Alternatively, the re-powering request may be transmitted from the wireless terminal device 41 to the wireless power supply device 3, and the wireless power supply device 3 may transmit a re-powering request corresponding to the narrow area base station 2.

[0206] In S70, when the narrow area base station 2 receives the request for re-powering, it determines whether to restart (in other words, whether to approve) the wireless power supply. In this example, the narrow area base station 2 determines not to restart and approve when the URLLC is continuing. In this example, when the URLLC is in the process of continuing and not ending when the narrow area base station 2 receives the request for re-powering, it does not send a response to the wireless terminal device 41. Alternatively, the narrow area base station 2 can also send a disapproved response. In S71, when the URLLC ends, a URLLC end notification is sent from the wireless terminal device 42 to the narrow area base station 2. Alternatively, the narrow area base station 2 grasps the state of the URLLC end based on the communication with the wide area base station 1.

[0207] In S72, when the narrow area base station 2 receives the repowering request and is in the state of URLLC termination, it performs scheduling again. Regarding the narrow area base station 2, in this scheduling, the wireless resources of URLLC are released, so that a new plan can be made using the wireless resources. For example, frequency F1 is allocated again for wireless power supply of the wireless terminal device 41. In addition, in this scheduling, a frequency different from the previous frequency F1 is sometimes allocated depending on the situation.

[0208] In S73, the narrow area base station 2 transmits a wireless power supply request based on the new plan to the wireless power supply device 3. In S74, the wireless power supply device 3 transmits a wireless power supply approval to the narrow area base station 2 when the wireless power supply can be restarted. In S75, the narrow area base station 2 transmits a wireless power supply approval as an approval for restarting the wireless power supply to the wireless terminal device 41. In S76, the narrow area base station 2 transmits a new plan notification to the wireless power supply device 3 and the wireless terminal device 41. In S77, the wireless power supply device 3 and the wireless terminal device 41 transmit a plan acceptance notification to the narrow area base station 2. In S78, the wireless terminal device 41 switches the antenna switch in accordance with the plan information so that the antenna is connected to the wireless power supply side in accordance with the change in frequency or the like.

[0209] In S79, the wireless power supply device 3 sends a wireless power supply start notification to the wireless terminal device 41. This notification is a notification that wireless power supply to the wireless terminal device 41 is restarted using the frequency F1 allocated by the scheduling. Then, the wireless power supply device 3 starts wireless power supply using the frequency F1 between the wireless terminal device 41 and the wireless terminal device 41. The wireless terminal device 41 receives the wireless power supply and charges the received power to the battery unit 423.

[0210] In the above sequence, in S66, the wireless terminal device 41 switches the antenna from the wireless power supply side to the wireless data communication side, and in S78, switches the antenna from the wireless data communication side to the wireless power supply side. As a modified sequence, it can also be set as follows. In S66, the wireless terminal device 41 does not switch the antenna from the wireless power supply side to the wireless data communication side, and in S69, sends a request for re-powering to the narrow area base station 2. In addition, when the wireless terminal device 41 receives the wireless power supply approval for restarting in S75, it restarts the wireless power supply without switching the antenna in S78. Not limited to the above-mentioned URLLC example, regarding the type and content of wireless data communication, when the urgency, importance, priority, etc. can be judged, scheduling and control corresponding to the judgment can be performed.

[0211] [Scheduling example]

[0212] Fig. 22 Shown also with Fig.21 The example of the third sequence corresponds to the plan example. Fig. 22 (A) and (B) show examples of changes in the planning information of wireless resource allocation before and after the URLLC request. In this example, it is assumed that there are multiple wireless terminal devices 4 in area 101, for example, there are 12 wireless terminal devices 4 (ID = MT1 to MT12). In the plan of (A), the wireless terminal device MT1 uses two channels, channels c12 and c13, to receive wireless power during the period from t1 to t12. The wireless terminal device MT3 uses one channel c1 to perform ordinary wireless data communication during the period from t1 to t10. In addition, the nine wireless terminal devices 4, namely the wireless terminal devices MT4 to MT12, use nine channels, namely channels c2 to c10, to perform the following operations: Figure 2 An example of this is multi-device connection data communication (MMTC, represented by a grid pattern).

[0213] In the case where a request for URLLC is generated as the highest priority communication for the wireless terminal device MT2, the plan (B) is made through scheduling. In the plan (B), the wireless terminal device MT2 uses the entire channels c1~c12 to perform URLLC at times t5, t6, t9, and t10 (indicated by a stripe pattern). Due to the generation of URLLC, the wireless power supply using channels c12 and c13 for the wireless terminal device MT1 is interrupted at time t5. For the wireless terminal device MT3, the ordinary wireless data communication using channel c1 is interrupted at the time of URLLC. For the wireless terminal devices MT4~MT12, the MMTC using channels c2~c10 is interrupted at the time of URLLC.

[0214] When the URLLC of the wireless terminal device MT2 via the narrow area base station 2 ends, the wireless power supply of the wireless terminal device MT1 is restarted using channels c12 and c13 immediately after one square at time t12. This is because the data of the wireless terminal device MT3 and the data of the wireless terminal devices MT4 to MT12, which are inserted into the URLLC and deviated in time for the scheduling of the narrow area base station 2, are restored in the narrow area base station 2 by error correction techniques such as HARQ (Hybrid Automatic Repeat request).

[0215] In the above example, regarding the wireless power supply of the wireless terminal device MT1, Fig.21 Similarly, after the URLLC ends, the wireless resource of the same frequency is used again and restarted. In contrast, in other scheduling examples, the narrow area base station 2 manages the plan in accordance with the status of the wireless terminal device MT3 and the wireless terminal devices MT4 to MT12, so that the wireless power supply for the wireless terminal device MT1 can be restarted immediately after the URLLC ends.

[0216] [Location management function]

[0217] In Embodiment 1, each device of the wireless power supply system also has a position management function, which is a function for grasping the position and correcting the position of each device related to wireless power supply. This position management function is a function for improving the accuracy of wireless power supply using the millimeter wave band in particular. In this system, before using the wireless power supply of millimeter waves, this function is used to correct the position of the wireless terminal device 4 when observed from the wireless power supply device 3 based on the terminal position information possessed by the narrow area base station 2. The wireless power supply device 3 can use this position to perform wireless power supply using millimeter waves with high accuracy according to the expected relationship.

[0218] Fig.23 An explanatory diagram related to the position management function is shown. It shows a situation in which one narrow area base station 2, one wireless power supply device 3, and one wireless terminal device 4 are connected in area 101. The absolute position (three-dimensional coordinates indicating the position) of each device is set as follows. The position of the narrow area base station 2 is set to position P2, the position of the wireless power supply device 3 is set to position P3, and the position of the wireless terminal device 4 is set to position P4. In addition, the relative position (equivalent to the displacement amount, vector) of the wireless terminal device 4 when observed from the narrow area base station 2 is set to position L1. The relative position of the wireless terminal device 4 when observed from the wireless power supply device 3 is set to position L2. The relative position of the wireless power supply device 3 when observed from the narrow area base station 2 is set to position L3.

[0219] When the wireless power supply device 3 wirelessly supplies power to the wireless terminal device 4, especially when wireless power supply is performed using millimeter waves, the wireless power supply device 3 needs to grasp the position of the wireless terminal device 4 as the target with high accuracy. Fig.13 In order to perform efficient wireless power supply according to the directivity strength of the millimeter wave, it is important to have an expected relationship between the position P3 of the wireless power supply device 3 (particularly the antenna 361) and the position P4 of the wireless terminal device 4 (particularly the antenna 61). That is, it is best for the wireless power supply device 3 to grasp the position L2 with high accuracy. For this purpose, the position management function is used in this system. Fig.11 The terminal information management unit 301D also performs processing corresponding to the location management function.

[0220] In the case where the wireless power supply device 3 can directly obtain the information of the position L2 (or the position P4 of the wireless terminal device 4 and the position P3 of the wireless power supply device 3) as the terminal information JT from the wireless terminal device 4 or the narrow area base station 2, it is not necessary to use the position management function. For example, the wireless terminal device 4 may provide the wireless power supply device 3 with the terminal information JT including its own position P4 obtained using a high-precision GPS, a sensor, etc.

[0221] However, for example, when the information obtained as the position of the wireless terminal device 4 is only the position L1 when viewed from the narrow area base station 2, there is a position difference between the wireless power supply device 3 and the narrow area base station 2, which is different from the position L2 when viewed from the wireless power supply device 3. Therefore, in the wireless power supply based on the position L1, the efficiency is lower than the ideal value. Therefore, in this system, the position management function is used to correct the information of the position L2 obtained from the information of the position L1 and the position L3, and the wireless power supply based on the position L2 is performed. As a result, more efficient wireless power supply can be performed.

[0222] exist Fig.23 In this system, the position L3 of the wireless power supply device 3 when viewed from the narrow area base station 2 is registered as a setting in advance when the system is installed. The narrow area base station 2 and the wireless power supply device 3 have information on the position L3. Fig.23 In the sequence related to position correction, there are steps S231 to S234.

[0223] In S231, when the wireless terminal device 4 sends a wireless power supply request to the narrow area base station 2 or the wireless power supply device 3, for example, terminal information JT is simultaneously sent. The terminal information JT includes the ID, type, power state including the state of the battery pack 423, location information, device configuration information, etc. of the wireless terminal device 4. In this sequence, the terminal information JT includes information of the relative position L1 when viewed from the narrow area base station 2 as location information. As a basic function of the narrow area base station 2, the location L1 of the wireless terminal device 4 is grasped in order to perform wireless data communication. Alternatively, the location information of the location L1 may also be the location information grasped by the wireless terminal device 4 itself using a high-precision GPS, sensor, or other means.

[0224] In S252, the narrow area base station 2 sends the terminal information JT of the wireless terminal device 4 to the wireless power supply device 3. Alternatively, the wireless power supply device 3 requests and obtains the terminal information JT from the narrow area base station 2. In S253, the wireless power supply device 3 grasps the position L1 from the acquired terminal information JT. In addition, the wireless power supply device 3 grasps the position L3 of the wireless power supply device 3 when observed from the narrow area base station 2. Then, the wireless power supply device 3 uses the position L3 to correct the position L1, thereby obtaining the position L2. As a formula for the case of considering using a vector, L2=L1-L3. In addition, the wireless power supply device 3 can grasp the position P4 of the wireless terminal device 4 from the position L2 relative to its own position P3.

[0225] In S254, the wireless power supply device 3 uses the position L2 and the position P4 obtained in S253 to perform wireless power supply of millimeter waves for the wireless terminal device 4. At this time, the wireless power supply device 3 selects the antenna 361 that is in the best positional relationship with respect to the position L2 and the position P4, and performs wireless power supply of millimeter waves. That is, as described above, for example, an antenna is selected in which the difference between the direction of the antenna 361 and the direction of the antenna 61 of the wireless terminal device 4 is the smallest. In addition, for example, the wireless power supply device 3 may also adjust the direction of the antenna 361 in a manner corresponding to the position L2 and the position P4 to perform wireless power supply of millimeter waves. In the case of a movable mechanism of the antenna 361, such adjustment can be performed. Alternatively, the wireless power supply device 3 may also notify the wireless terminal device 4 in a manner that it becomes a suitable positional relationship corresponding to the position L2, and output an urging output to the user.

[0226] In the example of the above-mentioned location management function, the wireless power supply device 3 performs the location correction, but it is not limited to this. In a modified example, the narrow area base station 2 or the wireless terminal device 4 may also perform the location correction. When the narrow area base station 2 performs the location correction, the narrow area base station 2 calculates the location L2 based on the location L1 and the location L3, and sends the information of the location L2 to the wireless power supply device 3. When the wireless terminal device 4 performs the location correction, the wireless terminal device 4 obtains the information of the location L1 and the location L3 from the narrow area base station 2, calculates the location L2 based on the location L1 and the location L3, and sends the information of the location L2 to the wireless power supply device 3.

[0227] In addition, for Figure 2 In the case of an integrated wireless base station power supply device 5, position P3 is almost the same as position P2, that is, position L1 is almost the same as position L2. In this case, position correction can be omitted. In addition, when the position L3 of the wireless power supply device 3 in area 101 is changed due to the movement of the user, etc., the position measurement function related to position L3 can also be used to grasp it as described above. For example, the narrow area base station 2 uses a millimeter wave electromagnetic wave source as a radar to grasp the position L3 of the wireless power supply device 3 when observed from the narrow area base station 2. Alternatively, the wireless power supply device 3 uses a millimeter wave electromagnetic wave source as a radar to grasp the position of the narrow area base station 2 when observed from the wireless power supply device 3, and obtains the position L3 from this position.

[0228] In addition, the narrow area base station 2 can also use the millimeter wave electromagnetic wave source as a radar to measure and grasp the position L1 of the wireless terminal device 4. In addition, the wireless power supply device 3 can also use the millimeter wave electromagnetic wave source as a radar to measure and grasp the position L2 of the wireless terminal device 4.

[0229] [Effects, etc. (1)]

[0230] As described above, according to the system including the wireless terminal device 4 and the wireless power supply device 3 of embodiment 1, the interference between wireless power supply and wireless data communication can be prevented or reduced by scheduling, and the efficiency, reliability, user convenience, etc. can be improved. According to embodiment 1, the time and frequency of wireless power supply and wireless data communication related to one or more devices are separated, so that these interferences can be prevented or reduced. In addition, in particular, in embodiment 1, a method of wireless power supply is performed using a radio wave reception method, and the wireless terminal device 4 can be configured within a range of a distance of several meters relative to the wireless power supply device 3, for example, without being limited to a close setting, so the user convenience is high. In addition, in embodiment 1, wireless power supply and wireless data communication using millimeter wave bands and microwave bands can be performed, and interference can be reduced in each combination. In addition, in the case of wireless power supply using millimeter wave bands, the expected relationship can be judged using a location management function, etc., to improve the accuracy.

[0231] [Modifications]

[0232] As a variation of the first embodiment, it can also be set as follows. In the first embodiment, the wireless terminal device 4 determines the necessity of charging and generates a wireless power supply request. Not limited to this, in a variation, the wireless power supply device 3 can also cooperate and communicate with the wireless terminal device 4 to determine the necessity of charging the wireless terminal device 4 and generate a wireless power supply request. For example, the wireless power supply device 3 obtains the terminal information JT from the wireless terminal device 4, and determines the necessity of wireless power supply based on the power status of the wireless terminal device 4 shown in the terminal information JT. Then, the wireless power supply device 3 sends the wireless power supply request to the wireless base station due to the scheduling request.

[0233] The communication unit 410 of the wireless terminal device 4 may be a communication unit compatible with one type of wireless communication interface (for example, only the millimeter wave band or only the microwave band). In addition, one communication unit may include a single antenna.

[0234] In addition, as a system of a modified example, a structure in which the wireless power supply device 3 performs scheduling instead of the wireless base station. In this structure, the wireless power supply device 3 grasps information such as wireless power supply requests from the wireless terminal device 4, and also obtains and grasps information related to requests and states of wireless data communication through cooperation with the narrow area base station 2. Based on this information, the wireless power supply device 3 performs scheduling, that is, at least appropriate wireless power supply scheduling, in a manner that reduces interference between wireless power supply and wireless data communication. The wireless power supply device 3 notifies the wireless terminal device 4 of the prepared schedule information. The wireless terminal device 4 receives wireless power supply in accordance with the schedule information.

[0235] [Variation Example - Communication Method (2)]

[0236] Fig.24 The second communication method in the system of the modified example of Embodiment 1 is shown. In the second communication method, the narrow area base station 2 performs scheduling. In the second communication method, the wireless power supply request from the wireless terminal device 4 is transmitted to the wireless power supply device 3. In this modified example, the same effect can be obtained.

[0237] As communication sequences related to the request for wireless power supply W1, sequences WR1 to WR4 are shown. In sequence WR1, the wireless terminal device 4 sends a wireless power supply request to the wireless power supply device 3. In sequence WR2, the wireless power supply device 3 grasps the wireless power supply request from the wireless terminal device 4 and sends the corresponding wireless power supply request to the narrow area base station 2. In sequence WR3, the narrow area base station 2 sends the plan information to the wireless power supply device 3 after scheduling. In sequence WR4, the wireless power supply device 3 sends the plan information to the wireless terminal device 4.

[0238] In addition, as communication sequences related to the request for wireless data communication C1, sequences CR1 to CR3 are shown. In sequence CR1, the wireless terminal device 4 sends a connection request for wireless data communication to the narrow area base station 2. In sequence CR2, the narrow area base station 2 communicates with the wide area base station 1, confirms the connection of the wireless data communication, and performs scheduling. In sequence CR3, the narrow area base station 2 sends schedule information, etc. to the wireless terminal device 4.

[0239] The narrow area base station 2 performs scheduling when receiving each request. The wireless power supply device 3 performs wireless power supply W1 for the wireless terminal device 4 according to the first time T1 and the first frequency F1 according to the acquired schedule information J3. Correspondingly, the wireless terminal device 4 receives the wireless power supply W1 from the wireless power supply device 3 according to the acquired schedule information J4. In addition, the wireless terminal device 4 performs wireless data communication C1 according to the second time T2 and the second frequency F2 according to the schedule information J4.

[0240] (Implementation Method 2)

[0241] use Fig.26 , Fig. 27, a wireless power supply system including a wireless terminal device and a wireless power supply device according to embodiment 2 of the present invention is described. The following describes the structural parts in embodiment 2 and the like that are different from embodiment 1. In embodiment 2, during wireless power supply, the active cooperative action (including wireless communication for control) between the narrow area base station 2 and the wireless power supply device 3 as in embodiment 1 is not performed. In embodiment 2, the narrow area base station 2 performs a cooperative action with the wireless terminal device 4, and the wireless terminal device 4 performs a cooperative action with the wireless power supply device 3, thereby performing wireless power supply. In addition, in embodiment 2, the narrow area base station 2 performs scheduling.

[0242] [Wireless power supply system, wireless terminal device]

[0243] Fig.26 An example of the structure of a wireless power supply system in Embodiment 2 is shown. In area 101, there are a narrow area base station 2, a wireless power supply device 3, and a plurality of (for example, three) wireless terminal devices 4 (41 to 43). Unlike Embodiment 1, the wireless power supply device 3 does not actively cooperate with the narrow area base station 2. The wireless power supply device 3 cooperates with the wireless terminal device 4 by wirelessly communicating. The wireless base station (particularly the narrow area base station 2) has a scheduling function 102. The wireless terminal device 4 has a scheduling request function 104.

[0244] The configuration of the wireless terminal device 4 according to the second embodiment is different from that of the wireless terminal device 4 according to the first embodiment in that Figure 8 The processor 401 also includes a wireless power supply management unit 401E. The wireless power supply management unit 401E is a part that manages the information (set as wireless power supply information JP) required for the wireless terminal device 4 to receive wireless power from the wireless power supply device 3 in order for the wireless terminal device 4 to identify the wireless power supply device 3. The wireless power supply management unit 401E stores the wireless power supply information JP in the memory 402. The wireless power supply information JP includes the wireless power supply device information obtained from the wireless power supply device 3. The wireless power supply device information includes the ID, type, position, status, device structure information, etc. of the wireless power supply device 3. The device structure information includes information such as the type and number of antennas of the power transmission unit. The wireless power supply information JP may also include information such as the relative position of the wireless power supply device 3 when observed from the wireless terminal device 4, which is grasped by the wireless terminal device 4 using the aforementioned position determination function.

[0245] [Wireless Communication Sequence]

[0246] Fig. 27 The wireless communication sequence of the system in Embodiment 2 is shown. This sequence is a sequence for performing wireless power supply after correcting the position L1 of the wireless terminal device 4 grasped by the narrow area base station 2 to the position L2 of the wireless terminal device 4 when viewed from the wireless power supply device 3. This sequence includes the following steps S81 to S88.

[0247] In S81, when the wireless terminal device 4 makes a wireless power supply request for charging the battery pack 423, first, it sends a location information request, a wireless power supply frequency assurance request, and terminal information JT to the narrow area base station 2. The location information request is a request related to the location L1 of the wireless terminal device 4 when viewed from the narrow area base station 2. The wireless power supply frequency assurance request is a request related to the allocation of wireless resources such as the frequency used for wireless power supply, in other words, a scheduling request. The terminal information JT is information including the ID and status of the wireless terminal device 4 as described above, but does not include location information.

[0248] In S82, the narrow area base station 2 performs scheduling including allocation of wireless resources including the frequency for wireless power supply according to the state of the wireless terminal device 4 indicated by the terminal information JT in response to the wireless power supply frequency assurance request. Alternatively, in the case of a method in which the wide area base station 1 performs scheduling, the narrow area base station 2 requests scheduling from the wide area base station 1 and obtains the plan information of the scheduling result performed by the wide area base station 1. This scheduling prevents or reduces the interference between wireless data communication and wireless power supply in the same manner as in the first embodiment.

[0249] In S83, the narrow area base station 2 responds to the wireless terminal device 4 with the information of the acquired position L1 in response to the position information request from the wireless terminal device 4. The narrow area base station 2 sends the plan information (corresponding plan notification) together with the position information of the position L1 to the wireless terminal device 4 as a response. In S84, the wireless terminal device 4 sends the wireless power supply request together with the information of the position L1 acquired from the narrow area base station 2 and the plan information to the wireless power supply device 3. In S85, the wireless power supply device 3 uses the position L1 acquired from the wireless terminal device 4 and the position L3 as the set value to obtain the position L2 of the wireless terminal device 4 when viewed from the wireless power supply device 3 through correction. This position correction is particularly effective when wireless power supply using millimeter waves is used.

[0250] In S86, the wireless power supply device 3 sends a wireless power supply approval to the wireless terminal device 4 in accordance with the schedule information obtained in S83, if the wireless power supply is approved. In S87, the wireless terminal device 4 switches the antenna switch in accordance with the schedule information so that the antenna of the communication unit 410 to be used is connected to the wireless power supply side. In S88, the wireless power supply device 3 performs wireless power supply with the wireless terminal device 4 in accordance with the schedule information toward the position L2 obtained in S85.

[0251] [Effects, etc. (2)]

[0252] As described above, according to Embodiment 2, the same effect as Embodiment 1 can be obtained. In the system of Embodiment 2, during wireless power supply, no active cooperation action is performed between the narrow area base station 2 and the wireless power supply device 3, and the same function as Embodiment 1 is realized mainly by the wireless terminal device 4 in the form of being between the narrow area base station 2 and the wireless power supply device 3.

[0253] (Implementation 3)

[0254] use Fig.28 , a wireless power supply system including a wireless terminal device and a wireless power supply device according to Embodiment 3 of the present invention is described. In Embodiment 3, each device has a position determination function using a camera, etc. In addition, in Embodiment 3, a detailed example of a case where an antenna separation method is used as a scheduling method is described.

[0255] [Using the camera's position determination function]

[0256] The position management function can be used to grasp the position L2 of the wireless terminal device 4 when viewed from the wireless power supply device 3. Each device of the present system may have a position determination function that determines the position of another device by analyzing an image using a camera as follows.

[0257] When the narrow area base station 2 is equipped with a camera, the position L1 of the wireless terminal device 4 and the position L3 of the wireless power supply device 3 can be understood by analyzing the image taken by the camera. In addition, when the wireless power supply device 3 is equipped with a camera 304, the position L2 of the wireless terminal device 4 and the position of the narrow area base station 2 can be understood by analyzing the image taken by the camera 304. When the wireless terminal device 4 is equipped with a camera 404, the position of the wireless power supply device 3 and the position of the narrow area base station 2 can be understood by analyzing the image taken by the camera 404.

[0258] Use the aforementioned Fig.13 etc., to explain the position determination function. Fig.13 In (A), the wireless power supply device 3 and the wireless terminal device 4 may each have a position determination function. By using the position determination function to determine the expected relationship between the devices, wireless power supply can be realized more efficiently.

[0259] When the wireless power supply device 3 has a position determination function, it uses the camera 304 to take a picture of an image during wireless power supply. Based on the image, the wireless power supply device 3 determines whether the wireless terminal device 4 as the target exists within a predetermined range centered on the direction of the camera 304, and whether there is an obstruction OB (including the case of a person) near the line in the direction. When the wireless terminal device 4 as the target exists within the range of the direction and there is no obstruction OB, the wireless power supply device 3 determines that wireless power supply can be performed efficiently, that is, the expected relationship exists. When the wireless terminal device 4 as the target does not exist within the range of the direction, or there is an obstruction OB, the wireless power supply device 3 determines that wireless power supply cannot be performed efficiently, that is, the expected relationship does not exist. The wireless power supply device 3 controls the wireless power supply based on the determination result.

[0260] In addition, the wireless power supply device 3 can send and notify the judgment result information of the position judgment function to the wireless base station (narrow area base station 2, wide area base station 1), so as to reflect it to the scheduling. For example, the wireless power supply device 3 sends information including whether there is an expected relationship or position relationship with the wireless terminal device 4 to the wireless base station. The wireless base station considers this information and makes a plan including appropriate wireless resource allocation. In addition, the wireless power supply device 3 can also send and notify the judgment result information to the wireless terminal device 4 as the object. In addition, the wireless power supply device 3 can also urge the user of the wireless terminal device 4 to adjust the output of the position and direction of the wireless terminal device 4.

[0261] When the wireless terminal device 4 has a position determination function, it uses the camera 404 to take an image when receiving wireless power. The wireless terminal device 4 determines from the image whether the wireless power supply device 3 as the target object or candidate exists within a predetermined range centered on the direction of the camera 404, and whether there is an obstruction OB within the range of the line in the direction. When the wireless power supply device 3 exists within the range of the direction and there is no obstruction OB, the wireless terminal device 4 determines that the wireless power supply can be efficiently received, that is, the expected relationship exists. When the wireless power supply device 3 does not exist within the range of the direction or there is an obstruction OB, the wireless terminal device 4 determines that the wireless power supply cannot be efficiently received, that is, the expected relationship does not exist. The wireless terminal device 4 controls the power receiving action of the wireless power supply according to the determination result.

[0262] In addition, the wireless terminal device 4 can send and notify the wireless base station (narrow area base station 2, wide area base station 1) of the judgment result information, so as to reflect it to the scheduling. For example, the wireless terminal device 4 sends information including whether there is an expected relationship or positional relationship with the wireless power supply device 3 to the wireless base station. The wireless base station considers this information and makes a plan including appropriate wireless resource allocation. In addition, the wireless terminal device 4 can also send and notify the judgment result information to the wireless power supply device 3 as the target object. In addition, the wireless terminal device 4 can also urge the user to adjust the output of the position and direction of the wireless terminal device 4.

[0263] [Antenna position determination function]

[0264] Furthermore, each device of the present system may also have an antenna position determination function as the above-mentioned position determination function. The antenna position determination function is a function of determining the position of the antenna of the target device by analyzing the image of the camera. Fig.13 etc., to illustrate the antenna position determination function. Fig.13 In (A), the wireless power supply device 3 and the wireless terminal device 4 may each have an antenna position determination function. By using the antenna position determination function to determine the expected relationship between antennas, wireless power supply using millimeter waves can be more efficiently realized.

[0265] When the wireless power supply device 3 has an antenna position determination function, it uses the camera 304 to take an image when wireless power supply using millimeter waves is being performed. The wireless power supply device 3 determines from the image whether the millimeter wave antenna 61 of the wireless terminal device 4 as the target exists within a predetermined range centered on the direction of the antenna 361 (for example, the direction d1), and whether there is an obstruction OB within the range on the line of the direction. When the antenna 61 of the wireless terminal device 4 as the target exists within the range of the direction and there is no obstruction OB, the wireless power supply device 3 determines that wireless power supply using millimeter waves can be efficiently performed, that is, there is an expected relationship between the antennas. When the antenna 61 of the wireless terminal device 4 as the target does not exist within the range of the direction or there is an obstruction OB, the wireless power supply device 3 determines that wireless power supply using millimeter waves cannot be efficiently performed, that is, there is no expected relationship between the antennas. The wireless power supply device 3 controls wireless power supply using millimeter waves based on the determination result.

[0266] When the wireless terminal device 4 has an antenna position determination function, it uses the camera 404 to capture an image when receiving wireless power supply using millimeter waves. The wireless terminal device 4 determines from the image whether the antenna 361 of the wireless power supply device 3 of the target object exists within a predetermined range centered on the direction of the antenna 61, and whether there is an obstruction OB within the range of the line in the direction. When the antenna 361 of the wireless power supply device 3 exists within the range of the direction and there is no obstruction OB, the wireless terminal device 4 determines that the wireless power supply using millimeter waves can be efficiently received, that is, the expected relationship between the antennas exists. When the antenna 361 of the wireless power supply device 3 of the target object does not exist within the range of the direction, or when there is an obstruction OB, the wireless terminal device 4 determines that the wireless power supply using millimeter waves cannot be efficiently received, that is, the expected relationship between the antennas does not exist. The wireless terminal device 4 controls the power receiving operation of the wireless power supply using millimeter waves based on the determination result.

[0267] Similarly, regarding the antenna position judgment function, the wireless power supply device 3 or the wireless terminal device 4 can send and notify the judgment result information to the wireless base station, thereby reflecting it in the scheduling. In the wireless base station, for example, scheduling of the antenna separation method can be performed. In addition, the wireless power supply device 3 can also send and notify the judgment result information to the wireless terminal device 4 as the target. The wireless terminal device 4 can also send and notify the judgment result information to the wireless power supply device 3 of the target object. The wireless terminal device 4 can also urge the user to adjust the position and direction of the antenna 61.

[0268] The above-mentioned camera 404 and camera 304 may also be a lensless camera or other sensor that performs the same function. In addition, the 3D position coordinates and distance (distance from the camera) of the object can be inferred from the position coordinates of the object (corresponding feature points) in the camera image based on known calculations. In particular, when using electromagnetic waves in the millimeter wave band, it is important that the wireless power supply device 3 and the wireless terminal device 4 are in the expected relationship and the positional relationship between the antennas is correct. Therefore, it is effective to use the above-mentioned position judgment function.

[0269] In addition, the wireless terminal device 4 has Fig. 9 When the wireless power supply device 3 has the camera 304 and the antenna 61 is configured as such, the antenna position determination function can be particularly configured as follows. When the wireless terminal device 4 uses the antenna 61, the LED element 612 ( Fig.10) emits light, thereby transmitting the position of the antenna 61. The wireless power supply device 3 analyzes the image of the camera 304 and grasps and tracks the position of the antenna 61 of the wireless terminal device 4 based on the light of the LED in the image. In the case where a dynamic image is photographed by the camera 304, the position can be tracked from each image of the dynamic image. As a result, the wireless power supply device 3 can grasp the position of the antenna 61 of the wireless terminal device 4 with high precision, and can perform wireless power supply in the millimeter band with higher precision based on the grasp. As another structural example, instead of setting a camera on the wireless power supply device 3 and the narrow area base station 2, a light sensor can be set. The light sensor detects the light of the LED of the antenna part of the wireless terminal device 4. In addition, for example, infrared light can be emitted from the antenna part of the wireless terminal device 4, and a corresponding infrared sensor can be used.

[0270] Furthermore, the wireless power supply device 3 determines, based on the image of the camera 304, that an obstruction OB (including a person) is recognized within a predetermined range on the line between the antenna 361 of the wireless power supply device 3 and the antenna 61 of the wireless terminal device 4. Alternatively, the wireless power supply device 3 determines that a person is recognized in the image approximately near the range on the line. In these cases, the wireless power supply device 3 performs control such as not starting wireless power supply, stopping wireless power supply, or adjusting in a manner that weakens the transmitted power. When the wireless power supply device 3 confirms that no person is recognized between the antennas, it controls to start wireless power supply, restart wireless power supply, and restore the transmitted power.

[0271] In addition, according to the directivity of the millimeter wave, it is also effective to separate the multiple antennas 61 of the wireless terminal device 4 for wireless power supply and wireless data communication during scheduling. Fig.14 The antenna 61-4 for the millimeter wave is selected, and the antenna 61-3 is selected for wireless data communication. As a result, wireless power supply and wireless data communication can be performed in a state where the antennas are spatially separated, and the interference between them can be prevented or reduced.

[0272] [Antenna switch, antenna separation method]

[0273] Fig.28 The configuration of the antenna switch 71 and the like of the first communication unit 411 of the wireless terminal device 4 in the third embodiment is shown. The first communication unit 411 has the antenna 61 corresponding to the millimeter wave band as shown in FIG. Fig. 9 There are four antennas 61-1, 61-2, 61-3, and 61-4. Correspondingly, in this structure, there are two antenna switches 71 (71-1, 71-2). The structure of each antenna switch 71 is the same as Figure 7The same is true for the case of, for example, having terminals numbered #1 to #8. Antennas 61-1 and 61-2 on the front surface s1 side are connected to the antenna switch 71-1. Antennas 61-3 and 61-4 on the back surface s2 side are connected to the antenna switch 71-2. The AC-DC converter 421 and the circuit 81 are connected to the connection destinations (#1 to #4) of the antenna switch 71-1 and the antenna switch 71-2, respectively. The antenna control unit 401D controls the switching of the antenna switch 71 (71-1, 71-2).

[0274] An example of scheduling in the antenna separation method is as follows. One antenna 61 among the plurality of antennas 61 corresponding to the millimeter wave band is allocated for wireless power supply, and another antenna 61 is allocated for wireless data communication. Fig.30 In the example of the state, the connection destination of the antenna switch 71-2 is selected in such a way that the antenna 61-4 is allocated for wireless power supply and the antenna 61-3 is allocated for wireless data communication. That is, the #2 and #3 terminals are selected as "H" by the switch in the antenna switch 71-2. As a result, the antenna 61-3 is connected to the circuit 81 side, and the antenna 61-4 is connected to the AC-DC converter 421 side.

[0275] During scheduling, as described above, the expected relationship is determined by using, for example, the position determination function using a camera, and the antenna 61 is selected based on the determination result. In particular, the antenna 61 for wireless power supply is selected so that the expected relationship between the antenna of the wireless power supply device 3 and the antenna 61 of the wireless terminal device 4 becomes good.

[0276] [Effects, etc. (3)]

[0277] As described above, according to Embodiment 3, the same effects as those of Embodiment 1 can be obtained. In Embodiment 3, the antennas to be used are divided to prevent or reduce interference. In Embodiment 3, the position accuracy when wireless power supply using the millimeter wave band can be improved, and more efficient wireless power supply can be achieved.

[0278] (Implementation 4)

[0279] use Fig.29 , Fig.30 , a wireless power supply system including a wireless terminal device and a wireless power supply device according to Embodiment 4 of the present invention is described. In Embodiment 4, when there are multiple wireless terminal devices in an area, multiple wireless data communications and multiple wireless power supplies are scheduled in a manner that reduces interference.

[0280] [Scheduling method (5)]

[0281] In the fourth embodiment, the scheduling method can be as follows. Fig.29The following is a structural example of the scheduling method and the wireless power supply system. Fig.29 In the wireless power supply system, Figure 2 Similarly, within the area 101, there are multiple wireless terminal devices 4 relative to the range in which one wireless power supply device 3 (or wireless base station power supply device 5) can supply power. As an example of multiple wireless terminal devices 4 that are candidates for receiving wireless power supply, the case of wireless terminal devices 41, 42, and 43 is shown. The case in which these multiple wireless terminal devices 4 (41 to 43) respectively generate wireless power supply requests (requests RQ1 to RQ3) in approximately the same time period is shown. The wireless base station (wide area base station 1 and narrow area base station 2) and the wireless power supply device 3 grasp these multiple wireless power supply requests (requests RQ1 to R3). In this example, as a whole, there are wireless data communications C1 to C3 and wireless power supply W1 to W3.

[0282] In the power management unit 401B of each wireless terminal device 4, the power status including the status of the battery pack 423 is grasped. The terminal information acquisition unit 301D of the wireless power supply device 3 acquires the terminal information JT including the power status from the power management unit 401B of each wireless terminal device 4 (41, 42, 43). The terminal information JT includes, for example, information such as the ID and type of the wireless terminal device 4, as well as information such as the remaining power of the battery pack and the power consumption rate. The power consumption rate is the power consumption rate based on the application used. The wireless power supply device 3 or the wireless base station grasps the power status of each wireless terminal device 4 (41~43) based on the terminal information JT, and judges the importance and priority related to each wireless power supply W1~W3 based on these power statuses.

[0283] For example, as the power state of the wireless terminal device 4, the order of the wireless terminal devices 41, 42, and 43 is set in the order of the remaining power of the battery pack from small to large. The wireless power supply device 3 determines that the wireless power supply related to the wireless terminal device 4 with less remaining power of the battery pack is high priority. The wireless base station performs scheduling based on the judgment based on the priority of the wireless power supply device 3. In this example, the wireless terminal device 41 is set as the first priority, the wireless terminal device 42 is set as the second priority, and the wireless terminal device 43 is set as the third priority, and a plan with allocated wireless resources is made. For example, in the case of a time separation method, it is separated in a manner of wireless power supply W1 at the first time, wireless power supply W2 at the next second time, and wireless power supply W3 at the next third time, and the wireless terminal device 4 with a lower priority is delayed. In addition, when the available frequencies are limited, the frequencies are allocated starting from the wireless terminal device 4 with a high priority.

[0284] As another method of determining the priority, the priority may be determined from the type of wireless terminal device 4, the type of application used by the wireless terminal device 4, or the number of wireless power supply times and the frequency in the history of wireless power supply. In addition, as another method, a method of setting the priority related to wireless power supply in advance between the plurality of wireless terminal devices 4 in the area 101 and performing scheduling according to the setting may be adopted.

[0285] [Scheduling method (6)]

[0286] In the fourth embodiment, the scheduling method can also be as follows. Fig.30 The following is a structural example of the scheduling method and the wireless power supply system. Fig.30 In the structure example, Figure 3 Similarly, there are multiple (for example, 3) wireless power supply devices 3 (31, 32, 33) in area 101. There are multiple wireless terminal devices 4 (for example, wireless terminal devices 41, 42, 43) for these wireless power supply devices 3. It is shown that these multiple wireless terminal devices 4 (41~43) generate wireless power supply requests (requests RQ1~RQ3) in approximately the same time period. The wireless base station grasps these multiple wireless power supply requests (requests RQ1~R3) by cooperating with the multiple wireless terminal devices 4. In this example, there are wireless data communications C1~C3 and wireless power supplies W1~W3 as a whole.

[0287] The wireless base station, for example, the narrow area base station 2, performs scheduling on the plurality of wireless power supply requests (requests RQ1 to R3). Fig.29 The narrow area base station 2 determines the priority in the same manner as in the example. For example, the narrow area base station 2 allocates different frequencies F1 to F3 according to the number of channels (ie, bandwidth) for each wireless power supply W1 to W3 according to the priority. For example, a large number of channels are allocated to the wireless power supply W1 with a high priority.

[0288] [Effects, etc. (4)]

[0289] As described above, according to Embodiment 4, it is possible to obtain the same effects as those of Embodiment 1. In Embodiment 4, it is possible to perform efficient wireless power supply while preventing interference between a plurality of wireless power supply devices 3 and a plurality of wireless terminal devices 4 .

[0290] As mentioned above, although this invention was specifically described based on embodiment, this invention is not limited to the said embodiment, Various changes can be made in the range which does not deviate from the summary.

Claims

1. A wireless terminal device, constituting a wireless power supply system, The wireless power supply system comprises: The wireless terminal device as a wireless power supply object; A wireless power supply device for wirelessly powering the wireless terminal device; and a wireless base station that relays wireless data communications of the wireless terminal device, The wireless base station generates plan information including allocation of wireless resources for the wireless data communication and the wireless power supply based on the wireless terminal device's request for the wireless data communication and the request for the wireless power supply, and transmits the plan information to the wireless power supply device. The wireless power supply device performs the wireless power supply to the wireless terminal device according to the plan information, The wireless terminal device includes a housing and a wireless antenna, wherein the wireless antenna is provided at a position adjacent to one side of the housing and another side opposite to the one side. The wireless terminal device receives the wireless power supply from the wireless power supply device according to the schedule information, and performs the wireless data communication via the wireless base station.

2. The wireless terminal device according to claim 1, wherein: The wireless power supply device uses electromagnetic waves in the millimeter wave band to perform the wireless power supply. The wireless terminal device receives the wireless power supply using electromagnetic waves in the millimeter wave band.

3. The wireless terminal device according to claim 1, wherein: When receiving the wireless power supply, a camera or a sensor is used to grasp the wireless power supply device that performs the wireless power supply.

4. A wireless power supply device, constituting a wireless power supply system, The wireless power supply system comprises: A wireless terminal device as a wireless power supply target; The wireless power supply device wirelessly supplies power to the wireless terminal device; and a wireless base station that relays wireless data communications of the wireless terminal device, The wireless base station generates plan information including allocation of wireless resources for the wireless data communication and the wireless power supply based on the wireless terminal device's request for the wireless data communication and the request for the wireless power supply, and transmits the plan information to the wireless power supply device. The wireless power supply device includes a storage unit that stores information related to the wireless terminal device. The wireless power supply device performs the wireless power supply to the wireless terminal device according to the plan information, The wireless terminal device receives the wireless power supply from the wireless power supply device and performs the wireless data communication via the wireless base station.

5. The wireless power supply device according to claim 4, wherein: The wireless base station creates the schedule information in a manner that divides the time of the wireless data communication and the time of the wireless power supply, The wireless power supply device performs the wireless power supply at a time according to the schedule information.

6. The wireless power supply device according to claim 4, wherein: The wireless base station creates the plan information in a manner that divides the frequency of the electromagnetic wave of the wireless data communication and the frequency of the electromagnetic wave of the wireless power supply, The wireless power supply device performs the wireless power supply at a frequency according to the schedule information.

7. The wireless power supply device according to claim 4, wherein: The wireless base station creates the plan information in a manner that divides the antenna used for the wireless data communication and the antenna used for the wireless power supply, The wireless power supply device includes a plurality of antennas, and performs the wireless power supply using the antennas according to the schedule information.

8. The wireless power supply device according to claim 4, wherein: The wireless power supply system has a plurality of wireless terminal devices as the wireless terminal devices in an area, The wireless base station creates the schedule information in a time-divided manner regarding the wireless power supply of the plurality of wireless terminal devices, The wireless power supply device performs the wireless power supply at a time according to the schedule information.

9. The wireless power supply device according to claim 4, wherein: The wireless power supply system has a plurality of wireless terminal devices as the wireless terminal devices in an area, The wireless base station generates the plan information regarding the wireless power supply of the plurality of wireless terminal devices by dividing the frequency of the electromagnetic wave. The wireless power supply device performs the wireless power supply at a frequency according to the schedule information.

10. The wireless power supply device according to claim 4, wherein: The wireless power supply device uses electromagnetic waves in the millimeter wave band to perform the wireless power supply. The wireless terminal device receives the wireless power supply using electromagnetic waves in the millimeter wave band.

11. The wireless power supply device according to claim 4, wherein: The wireless power supply device includes a first power transmission unit that performs the wireless power supply using electromagnetic waves in a millimeter wave band, and a second power transmission unit that performs the wireless power supply using electromagnetic waves in a microwave wave band. The wireless terminal device includes a first communication unit using electromagnetic waves in a millimeter wave band and a second communication unit using electromagnetic waves in a microwave wave band. The wireless base station creates the plan information in such a manner as to separate the type of electromagnetic waves used for the wireless data communication and the type of electromagnetic waves used for the wireless power supply, The wireless power supply device performs the wireless power supply using a power transmission unit corresponding to the type of electromagnetic waves according to the schedule information.

12. The wireless power supply device according to claim 4, wherein: The position of the wireless terminal device as viewed from the wireless power supply device is calculated based on the position information indicating the position of the wireless terminal device as viewed from the wireless base station, and the wireless power supply is performed at the calculated position.

13. The wireless power supply device according to claim 4, wherein: When performing the wireless power supply, the wireless terminal device that is the target of the wireless power supply is grasped using a camera or a sensor.

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