Terminal and power supply method

Abstract

A terminal is provided with: a communication unit that receives a notification relating to power supply from a base station; a power receiving unit that receives wireless power supply on the basis of the notification relating to power supply; and a control unit that determines whether or not to execute an operation pertaining to power supply on the basis of the state of connection to the network.

Description

TECHNICAL FIELD

[0001] The present application relates to a terminal in a wireless communication system and a power supply method. BACKGROUND

[0002] In NR (New Radio) (also referred to as "5G") that is a successor system of LTE (Long Term Evolution), as a requirement, technologies that satisfy a large capacity, a high-speed data transmission rate, a low latency, simultaneous connection of a plurality of terminals, a low cost, power saving, and the like are being researched (for example, Non-Patent Literature 1).

[0003] In LTE or NR, a UE category or a UE capability that is oriented to IoT (Internet of Things) that cuts down a function that is generally mandatory for a terminal to support, for example, a function related to a transmission / reception bandwidth and the number of antennas, and the like is defined. For example, in LTE, eMTC (enhanced Machine Type Communication), NB-IoT (Narrow Band IoT) are defined, and in NR, RedCap (Reduced Capability) and the like are defined.

[0004] Regarding a power supply method to various devices including an IoT terminal, in recent years, attention to a power supply technology to which wireless is applied is increasing, and research is actively being conducted. For example, a specific frequency band is being researched for wireless power supply, and the influence on the human body, wave interference with other communication devices, and the like are being verified, and in the case where there is no problem, the range of use is being expanded to the outside, a space where people are present.

[0005] In addition, in 3GPP (registered trademark), standardization research of an ultra power saving terminal that is premised on power supply by a surrounding environment, for example, sunlight, wind, water, electromagnetic waves, heat, sound, vibration, or the like, or wireless is being conducted (for example, Non-Patent Literature 2).

[0006] Prior Art Documents

[0007] Non-Patent Literature

[0008] Non-Patent Literature 1: 3GPP TS 38.300 V17.3.0 (2022-12)

[0009] Non-Patent Literature 2: 3GPP TR 22.840 V1.0.0 (2022-12) SUMMARY

[0010] Problems to be Solved by the Invention

[0011] In wireless power feeding, in order to compensate for the decrease in transmission efficiency, it is conceived to transmit electric power with a higher transmission power than in the conventional wireless communication system. In order to efficiently perform wireless power feeding, it is necessary to perform wireless power feeding while taking into account the communication state of the terminal.

[0012] The present application has been achieved in view of the above-described points, and has an object to perform wireless power feeding in accordance with the communication state of a terminal in a wireless communication system.

[0013] Means for solving the problem

[0014] According to the disclosed technology, there is provided a terminal including a communication section that receives a notification related to power feeding from a base station, a power receiving section that receives wireless power feeding based on the notification related to power feeding, and a control section that determines whether or not to perform an action related to power feeding based on a connection state with a network.

[0015] Effects of the Invention

[0016] According to the disclosed technology, in a wireless communication system, it is possible to perform wireless power feeding in accordance with the communication state of a terminal. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a diagram showing a configuration example of a wireless communication system.

[0018] Figure 2 is a diagram showing a configuration example (1) of wireless power feeding of an embodiment of the present application.

[0019] Figure 3 is a diagram showing a configuration example (2) of wireless power feeding of an embodiment of the present application.

[0020] Figure 4 is a timing chart for explaining an example of wireless power feeding of an embodiment of the present application.

[0021] Figure 5 is a diagram for explaining an example of wireless power feeding of an embodiment of the present application.

[0022] Figure 6 is a diagram for explaining an example of state transition of an embodiment of the present application.

[0023] Figure 7 is a diagram showing an example of a functional configuration of the base station 10 of an embodiment of the present application.

[0024] Figure 8 is a diagram showing an example of a functional configuration of the terminal 20 of an embodiment of the present application.

[0025] Figure 9is a diagram showing an example of a hardware structure of the base station 10 or the terminal 20 that shows an embodiment of the present application.

[0026] Figure 10 is a diagram showing an example of a structure of the vehicle 2001 in the embodiment of the present application. DETAILED DESCRIPTION

[0027] Hereinafter, an embodiment of the present application will be described with reference to the drawings. In addition, the embodiment described below is only an example, and the application of the embodiment of the present application is not limited to the embodiment below.

[0028] In the operation of the wireless communication system of the embodiment of the present application, a prior art is appropriately used. Among them, the prior art is, for example, the existing LTE, but is not limited to the existing LTE. In addition, unless otherwise specified, the term "LTE" used in this specification has a broad meaning including LTE-Advanced and the mode after LTE-Advanced (for example: NR, 6G wireless specification).

[0029] In addition, in the embodiment of the present application described below, the terms SS (Synchronization Signal), PSS (Primary SS), SSS (Secondary SS), PBCH (Physical broadcast channel), PRACH (Physical random access channel), PDCCH (Physical Downlink Control Channel), PDSCH (Physical Downlink Shared Channel), PUCCH (Physical Uplink Control Channel), PUSCH (Physical Uplink Shared Channel) and the like used in the existing LTE are used. These are for ease of description, and the same signals, functions and the like can be called by other names. In addition, the above terms in NR correspond to NR-SS, NR-PSS, NR-SSS, NR-PBCH, NR-PRACH and the like. However, even for signals for NR, it is not necessarily explicitly written as "NR-".

[0030] Moreover, in the embodiment of the present application, a duplexing method can be a TDD (Time Division Duplex) method, an FDD (Frequency Division Duplex) method, or another method (e.g., a flexible duplexing method, etc.).

[0031] Moreover, in the embodiment of the present application, the "configure" of the radio parameter or the like can be the pre-configure of the predetermined value, or the configure of the radio parameter notified from the base station 10 or the terminal 20.

[0032] Figure 1 is a diagram illustrating an example of a structure of a wireless communication system in the embodiment of the present application. As Figure 1 indicated, the wireless communication system in the embodiment of the present application includes the base station 10 and the terminal 20. In Figure 1 , one base station 10 and one terminal 20 are each illustrated, but this is merely an example, and a plurality of each can be provided.

[0033] The base station 10 is a communication device that provides one or more cells and performs wireless communication with the terminal 20. A physical resource of a wireless signal is defined by a time domain and a frequency domain, the time domain can be defined by the number of OFDM (Orthogonal Frequency Division Multiplexing) symbols, and the frequency domain can be defined by the number of subcarriers or the number of resource blocks. The base station 10 transmits a synchronization signal and system information to the terminal 20. The synchronization signal is, for example, an NR-PSS and an NR-SSS. The system information is transmitted by, for example, an NR-PBCH, and is also referred to as broadcast information. The synchronization signal and the system information can also be referred to as an SSB (SS / PBCH block). As Figure 1As shown, the base station 10 transmits a control signal or data to the terminal 20 through a DL (Downlink), and receives a control signal or data from the terminal 20 through a UL (Uplink). The base station 10 and the terminal 20 each can perform beamforming to perform transmission and reception of signals. In addition, the base station 10 and the terminal 20 each can apply communication based on MIMO (Multiple Input Multiple Output) to the DL or the UL. In addition, the base station 10 and the terminal 20 each can communicate via a secondary cell (SCell) and a primary cell (PCell) based on CA (Carrier Aggregation). Also, the terminal 20 can communicate via a primary cell of the base station 10 and a primary SCG cell (PSCell) of another base station 10 based on DC (Dual Connectivity).

[0034] The terminal 20 is a communication device having a wireless communication function such as a smartphone, a mobile phone, a tablet, a wearable terminal, a communication module for M2M (Machine-to-Machine), and the like. As shown, the terminal 20 receives a control signal or data from the base station 10 through a DL, and transmits a control signal or data to the base station 10 through a UL, thereby utilizing various communication services provided by a wireless communication system. In addition, the terminal 20 receives various reference signals transmitted from the base station 10, and performs measurement of a propagation path quality based on a reception result of the reference signals. Figure 1

[0035] The terminal 20 can perform carrier aggregation in which a plurality of cells (a plurality of CCs (Component Carriers)) are bundled to communicate with the base station 10. In the carrier aggregation, one PCell (Primary cell) and one or more SCells (Secondary cells) are used. In addition, a PUCCH-SCell having a PUCCH can be used.

[0036] With the spread of a wide variety of devices such as IoT terminals, methods of charging or replacing batteries of a large number of terminals are being studied. With respect to power supply methods to various devices including IoT terminals, attention to wireless power transfer (WPT) has been increasing in recent years, and research is actively being conducted.

[0037] ​In the IoT terminal, from the viewpoint of cost, the viewpoint of battery replacement, in the handheld terminal, from the viewpoint of cost, the viewpoint of terminal size or shape, wireless power supply is being studied. If efficient, high-capacity wireless power supply can be performed, further sophistication and diversification of terminals can be expected.

[0038] For example, a frequency band specific to wireless power supply distribution is being studied, and the effects on the human body, wave interference with other communication devices, and the like are verified, and in the case where there are no problems, the use range is expanded to the outdoors, a space where people are present.

[0039] In addition, in 3GPP (registered trademark), standardization research of a super power saving terminal that is premised on power supply by a surrounding environment, such as sunlight, wind, water, electromagnetic waves, heat, sound, vibration, or the like, or wireless power supply is being conducted. By realizing wireless power supply, charging based on a battery, wired charging, or battery replacement is not necessary.

[0040] The terminal 20 can also be powered by wireless from the base station 10 or the power transmission device 30 connected to the base station 10. For the terminal 20, the base station 10 or the like that transmits electric power and the base station 10 or the like that transmits and receives data can be the same or different.

[0041] As for the device that performs power supply, that is, the power transmission device 30, the following 1) to 3) can also have the features.

[0042] 1) The type of the power transmission device 30 can be a device corresponding to a base station, an IAB (Integrated Access Backhaul), a repeater, an RIS (Reconfigurable Intelligent Surface), a TRP (transmission / reception point), or a terminal, or the function of the device for power transmission can be specified separately.

[0043] 2) It can be assumed that the base station, the IAB, the repeater, the RIS, the TRP, or the terminal or the like that performs wireless power supply has a full duplex function.

[0044] 3) The IAB, the repeater, the RIS, the TRP, or the terminal or the like that performs wireless power supply can be in a state of being connected to the base station at the time of power supply, or can be in a state of not being connected at the time of power supply.

[0045] In addition, the power transmission device, the base station, the IAB, the repeater, the RIS, the TRP, or the terminal can be replaced with each other.

[0046] As for the terminal 20 that is powered, the following 1) to 3) can have the features.

[0047] 1) can be accompanied by movement, or can be fixed in position.

[0048] 2) can have the ability to connect with a base station, IAB, repeater, RIS, TRP, or terminal, etc. for data communication, or can not.

[0049] 3) regarding the type or shape of the terminal, can be a handheld terminal (smartphone, tablet, etc.), an IoT terminal (sensor, wearable terminal, surveillance camera, smart device, home appliance, etc.), an Ambient IoT terminal (tag, card, etc.), a robot, a drone, an electric vehicle, a PC, etc., but is not limited thereto.

[0050] Figure 2 is a diagram showing a structure example (1) of wireless power supply of an embodiment of the present application. As shown in Figure 2 , the power transmission device 30 can also be provided separately from the base station 10, and perform wireless power supply to the terminal 20. The base station 10 can also communicate with the terminal 20, and control wireless power supply based on the power transmission device 30. The power transmission device 30 can be provided to a wall, ceiling, etc. in a room, or a utility pole, corresponding facility, etc. in the outdoors. In addition, the terminal 20 can also act as the power transmission device 30, and perform wireless power supply to other terminals 20. Hereinafter, wireless power supply from the power transmission device 30 not included in the base station 10 to the terminal 20 will also be described as wireless power supply from the base station 10 to the terminal 20.

[0051] Figure 3 is a diagram showing a structure example (2) of wireless power supply of an embodiment of the present application. As shown in Figure 3 , the power transmission device 30 can also be provided together with the base station 10, and perform wireless power supply to the terminal 20. The base station 10 can also communicate with the terminal 20, and control wireless power supply based on the power transmission device 30. Hereinafter, wireless power supply from the power transmission device 30 included in the base station 10 to the terminal 20 will also be described as wireless power supply from the base station 10 to the terminal 20.

[0052] Here, in wireless power supply, in order to compensate for a decrease in transmission efficiency, it is assumed that power is transmitted at a higher transmission power than in a conventional wireless communication system. In order to efficiently perform wireless power supply, it is necessary to perform wireless power supply based on the communication state of the terminal.

[0053] Therefore, the terminal 20 that receives power via wireless from the power transmission device 30 can also perform a power supply operation based on the connection state of the UE.

[0054] Figure 4is a timing chart for explaining an example of wireless power supply of an embodiment of the present application. In step S101, the terminal 20 transmits a UE capability report related to power supply to the base station 10. In step S102, the base station 10 transmits a notification related to power supply to the terminal 20. The notification related to power supply can also be decided based on the UE capability report related to power supply. In the following step S103, the terminal 20 performs a power supply action based on the connection state, and receives wireless power supply from the power transmission device 30.

[0055] Action 1) can also perform the action related to power supply only in a specific UE state, and not perform the action related to power supply in other UE states.

[0056] For example, at least one of the following is taken as the specific UE state, and the rest is taken as the other UE state.

[0057] State A) a state in which there is a connection with the network (RRC_CONNECTED)

[0058] State B) a newly defined RRC_X (described later in Action 2)

[0059] State C: a standby state (RRC_IDLE)

[0060] State D) an intermediate state in which there is a connection / standby with the network (RRC_INACTIVE)

[0061] For example, the action can also be performed as Action la) - Action le) shown below.

[0062] Action la) performs the action related to power supply only in State A and State B, and not in State C and State D.

[0063] Action lb) Figure 5 is a diagram for explaining an example of wireless power supply of an embodiment of the present application. As shown in Figure 5 , the action related to power supply is performed only in State A, State B, and State D, and not in State C.

[0064] Action lc) performs the action related to power supply in State A, State B, State C, and State D.

[0065] Action ld) performs the action related to power supply only in State B and State D, and not in State A and State C.

[0066] Action le) performs the action related to power supply only in State B, State C, and State D, and not in State A.

[0067] It is also possible to notify which UE state to perform power supply in. For example, any of the above Action 1a), the above Action 1b), the above Action 1c), the above Action 1d), or the above Action 1e) can be notified. For example, the notification can be notified by a signal common to a plurality of UEs, such as SIB, or can be notified by UE-specific signaling.

[0068] The action and / or action content that can be applied can differ for each UE state.

[0069] By the above Action 1), the terminal 20 can determine which UE state to accept power supply in. In the case of power reception in more UE states, power supply can be continued for a long time, and in the case of power reception in fewer UE states, the complication of actions related to power supply can be avoided.

[0070] Action 2) can define a UE state (for example, RRC_X) that performs actions related to power supply and only performs a part of actions related to communication.

[0071] The UE in the RRC_X state can perform the following actions:

[0072] The UE in the RRC_X state can perform actions related to power supply as 1) to 7) shown below.

[0073] 1) Basic flow: execution decision or request of power supply, execution or completion report of power supply

[0074] 2) Beam management: reception of notification related to power supply beam, decision or change of power supply beam, beam failure recovery related to power supply beam, report of information related to power supply beam

[0075] 3) Resource scheduling: reception of notification related to time and frequency resources to be powered, execution of power supply based on the notification

[0076] 4) Status reporting: measurement and reporting of power supply status

[0077] 5) Capability reporting: reporting of information related to frequencies, methods, capacities, and efficiencies that can support power supply

[0078] 6) WPT with communication: reporting related to simultaneous actions of communication (above reception or reporting, etc.) and power supply, priority processing of communication and power supply, simultaneous execution of communication and power supply

[0079] 7) Different actions from power supply actions in other UE states can also be applied.

[0080] The UE in the state of RRC_X can perform actions related to data communication as 1) to 4) shown below, or can not perform them.

[0081] 1) Not performing the transmission / reception of data (for example, data from any logical channel other than data from the UL-CCCH (Common Control Channel)) that is not related to power supply.

[0082] 2) Not performing the transmission / reception of MAC-CE that is not related to power supply.

[0083] 3) It can be allowed to perform data communication that can be transmitted / received in RRC_INACTIVE. RRC_X can be an RRC_INACTIVE state in which power supply actions can be performed, or can be defined as RRC_INACTIVE.

[0084] 4) It can be allowed to perform reception of MCCH (MBS Control Channel) and MTCH (MBS Traffic Channel).

[0085] In RRC_X, a parameter (for example, RNTI (Radio Network Temporary Identifier)) for transmitting / receiving information related to power supply can be defined. For example, the parameter can be notified from the base station 10 to the terminal 20 in any state of the UE.

[0086] Action 2b) The UE can perform state migration as explained below.

[0087] Figure 6 is a diagram for explaining an example of state migration of an embodiment of the present application.

[0088] As shown in Figure 6 , it is assumed that

[0089] State A) is a state in which there is a connection with the network (RRC_CONNECTED)

[0090] State B) is RRC_X

[0091] State C) is a standby state (RRC_IDLE)

[0092] State D) is an intermediate state in which there is a connection / standby with the network (RRC_INACTIVE)

[0093] As shown in Figure 6 , it can be migrated from any one of State A, State C, and State D to State B, or it can be migrated from State B to any one of State A, State C, and State D.

[0094] Regarding the state transition between state A and state B, the UE may perform the actions shown in the following 1)-5).

[0095] 1) When transitioning from state A to state B, the RRC connection may be released.

[0096] 2) Several parameters (such as RRC parameters and power supply related parameters) may also be maintained.

[0097] 3) The request from the UE and / or notification to the UE involved in the transition from state A to state B may be defined.

[0098] 4) In state A, transition from state A to another state during an operation related to power supply may also mean transition to state B. In other words, transition from state A to state B may occur automatically.

[0099] 5) The request from the UE and / or notification to the UE involved in the transition from state B to state A may be defined, and may be the same mechanism as the transition from state D to state A, or may be different.

[0100] Regarding the state transition between state B and state D, the UE may perform the actions shown in the following 1)-4).

[0101] 1) The request from the UE and / or notification to the UE involved in the transition from state D to state B may be defined.

[0102] 2) Starting an operation related to power supply in state D may also mean transition to state B. In other words, transition from state D to state B may occur automatically.

[0103] 3) The request from the UE and / or notification to the UE involved in the transition from state B to state D may be defined.

[0104] 4) Transitioning to another state during power supply-related operations in state B may also mean transitioning to state D. In other words, transitioning from state B to state D may occur automatically.

[0105] Regarding the state transition between state B and state C, the UE may perform the actions shown in the following 1)-4).

[0106] 1) The request from the UE and / or notification to the UE involved in the transition from state C to state B may be defined.

[0107] 2) Starting an operation related to power supply in state C may also mean transition to state B. In other words, transition from state C to state B may occur automatically.

[0108] 3) A request from the UE and / or a notification to the UE involved in the migration from state B to state C can be defined.

[0109] 4) Migration to other states in the power supply-related action in state B can also mean migration to state C. That is, migration to state C from state B can also be automatic.

[0110] By the above-described action 2), it is possible to define the optimal power supply action for the UE that does not need data communication and only wants to perform power supply.

[0111] The power supply-related action in state Y specific to the UE can be performed only when a specific condition is satisfied, in action 3).

[0112] Hereinafter, state Y can be any one of state A, state B, state C, or state D. The UE can perform the power supply-related action in state Y in the cases shown in 1) to 6) below.

[0113] 1) The case where migration to state A once and then to state Y. Migration from state A to state Y (direct migration) can be defined, or other states can be included between state A and state Y.

[0114] 2) Any one of state A, state C, and state D is set as state Z. The case where, in state Z, a notification of the power supply-related action in state Y is received, and then migration to state Y is performed. Migration from state Z to state Y (direct migration) can be defined, or other states can be included between state Z and state Y. The notification can be made by UE-specific signaling, or by broadcast or group common signaling.

[0115] 3) The case where, in state Y, a notification of the power supply-related action in state Y is received.

[0116] 4) State Y is state A, and communication and power supply can be performed simultaneously and / or communication and power supply are performed in switching.

[0117] 5) The case where the UE reports to the base station 10 that it supports the power supply action in state Y and / or the case where it supports the power supply action in state Y.

[0118] 6) The case where other actions unrelated to power supply are performed in state Y, such as DRX-related actions. Or, the case where other actions unrelated to power supply are not performed in state Y, such as sidelink communication.

[0119] By the above-described action 3), it is possible to perform power supply only in the case where the conditions required for power supply are met, and it is possible to avoid complex UE actions.

[0120] With the above-described embodiments, the terminal 20 is able to appropriately perform the power supply action based on the connection state of the communication.

[0121] That is, in the wireless communication system, it is possible to perform wireless power supply in accordance with the communication state of the terminal.

[0122] (Functional Configuration)

[0123] Next, a functional configuration example of the base station 10 and the terminal 20 that perform the above-described processing and actions will be described. The base station 10 and the terminal 20 include the functions that implement the above-described embodiments. However, the base station 10 and the terminal 20 can each have only a part of the functions in the embodiments.

[0124] <Base Station 10>

[0125] Figure 7 is a diagram showing an example of the functional configuration of the base station 10 in the embodiment of the present application. As shown in Figure 7 , the base station 10 has a transmission section 110, a reception section 120, a setting section 130, and a control section 140. Figure 7 The functional configuration shown in the drawing is merely an example. The functional division and the names of the functional sections can be arbitrary as long as the actions related to the embodiment of the present application can be performed. Furthermore, the power transmission device 30 can have the same functional configuration as the base station 10.

[0126] The transmission section 110 includes a function of generating a signal to be transmitted to the terminal 20 side and transmitting the signal in a wireless manner. Furthermore, the transmission section 110 transmits an inter-network node message to other network nodes. The reception section 120 includes a function of receiving various signals transmitted from the terminal 20 and extracting, for example, higher layer information from the received signals. Furthermore, the transmission section 110 has a function of transmitting an NR-PSS, an NR-SSS, an NR-PBCH, a DL / UL control signal, and the like to the terminal 20. Furthermore, the reception section 120 receives an inter-network node message from other network nodes.

[0127] The setting section 130 stores setting information set in advance and various setting information transmitted to the terminal 20. The content of the setting information is, for example, information related to wireless power supply and the like.

[0128] The control section 140 performs control to realize the functions described in the embodiments. Furthermore, as described in the embodiments, the control section 140 performs control related to wireless power supply. It is also possible to include the functional sections related to signal transmission in the control section 140 in the transmission section 110 and to include the functional sections related to signal reception in the control section 140 in the reception section 120.

[0129] <Terminal 20>

[0130] Figure 8is a diagram showing an example of a functional configuration of the terminal 20 in the embodiment of the present application. As shown in Figure 8 The terminal 20 has a transmission section 210, a reception section 220, a setting section 230, and a control section 240. Figure 8 The functional configuration shown is merely an example. The functional division and the names of the functional sections can be arbitrary as long as the actions related to the embodiment of the present application can be performed.

[0131] The transmission section 210 generates a transmission signal from transmission data and transmits the transmission signal in a wireless manner. The reception section 220 receives various signals in a wireless manner and acquires signals of higher layers from the received physical layer signals. Further, the reception section 220 has a function of receiving an NR-PSS, an NR-SSS, an NR-PBCH, a DL / UL / SL control signal, and the like transmitted from the base station 10. Also, for example, as D2D communication, the transmission section 210 transmits a PSCCH (Physical Sidelink Control Channel), a PSSCH (Physical Sidelink Shared Channel), a PSDCH (Physical Sidelink Discovery Channel), a PSBCH (Physical Sidelink Broadcast Channel), and the like to other terminals 20, and the reception section 220 receives a PSCCH, a PSSCH, a PSDCH, or a PSBCH, and the like from other terminals 20.

[0132] The setting section 230 stores various setting information received by the reception section 220 from the base station 10. Further, the setting section 230 also stores setting information set in advance. The content of the setting information is, for example, information related to wireless power feeding and the like.

[0133] The control section 240 performs control to realize the functions described in the embodiment. Further, as described in the embodiment, the control section 240 performs control related to wireless power feeding. It is also possible to include the functional sections related to signal transmission in the control section 240 in the transmission section 210 and to include the functional sections related to signal reception in the control section 240 in the reception section 220.

[0134] (Hardware configuration)

[0135] The block diagram used in the description of the above embodiment Figure 7 and Figure 8) show blocks in units of functions. These functional blocks (structural units) are realized by any combination of at least one of hardware and software. Further, the method of realizing each functional block is not particularly limited. That is, each functional block can be realized by one device physically or logically combined, or two or more devices physically or logically separated can be directly or indirectly (for example, using wired, wireless, or the like) connected and realized using the plurality of devices. The functional blocks can also be realized in combination with software in the one device or the plurality of devices described above.

[0136] The functions include judging, deciding, determining, calculating, computing, processing, deriving, investigating, searching, recognizing, receiving, transmitting, outputting, accessing, resolving, selecting, choosing, establishing, comparing, assuming, expecting, considering, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, and the like, but are not limited to these. For example, a functional block (structural unit) that causes transmission to function is referred to as a transmitting unit or a transmitter. In any case, as described above, the method of realization is not particularly limited.

[0137] For example, the base station 10, the terminal 20, and the like in one embodiment of the present disclosure can also function as a computer that performs processing of the wireless communication method of the present disclosure. Figure 9 is a diagram showing an example of a hardware structure of the base station 10 and the terminal 20 according to one embodiment of the present disclosure. The base station 10 and the terminal 20 described above can also be configured as a computer device that physically includes a processor 1001, a storage device 1002, an auxiliary storage device 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, and the like. Further, the power transmission device 30 can also have the same hardware structure as the base station 10.

[0138] In addition, in the following description, the expression "device" can be replaced with "circuit", "equipment", "unit", and the like. The hardware structure of the base station 10 and the terminal 20 can be configured to include one or more of each of the devices illustrated, or can be configured not to include a part of the devices.

[0139] The various functions in the base station 10 and the terminal 20 are implemented as follows: predetermined software (programs) are read into hardware such as the processor 1001 and the storage device 1002, so that the processor 1001 performs calculations and controls the communication of the communication device 1004 or controls at least one of the reading and writing of data in the storage device 1002 and the auxiliary storage device 1003.

[0140] Processor 1001 controls the entire computer by, for example, running an operating system. Processor 1001 may also be comprised of a central processing unit (CPU) that includes interfaces with peripheral devices, a control device, a computing device, registers, and the like. For example, control unit 140 and control unit 240 described above may also be implemented by processor 1001.

[0141] In addition, the processor 1001 reads a program (program code), a software module, or data from at least one of the auxiliary storage device 1003 and the communication device 1004 to the storage device 1002, and performs various processes based on the program. As a program, a program that causes the computer to execute at least a part of the operations described in the above embodiments is used. For example, Figure 7 The control unit 140 of the base station 10 shown may also be implemented by a control program stored in the storage device 1002 and executed in the processor 1001. For example, Figure 8 The control unit 240 of the terminal 20 shown can also be implemented by a control program stored in the storage device 1002 and executed by the processor 1001. Although the various processes described above are performed by a single processor 1001, the various processes described above can also be performed simultaneously or sequentially by two or more processors 1001. The processor 1001 can also be implemented by one or more chips. In addition, the program can also be transmitted from the network via a telecommunications line.

[0142] The storage device 1002 is a computer-readable recording medium and may be composed of, for example, at least one of ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electrically Erasable Programmable ROM), and RAM (Random Access Memory). The storage device 1002 may also be referred to as a register, cache, or main memory (main storage device). The storage device 1002 can store executable programs (program code), software modules, and the like for implementing the communication method according to one embodiment of the present disclosure.

[0143] The auxiliary storage device 1003 is a computer-readable recording medium such as at least one of an optical disk such as a CD-ROM (Compact Disc ROM), a hard disk drive, a floppy disk, a magneto-optical disk (for example, a compact disk, a digital versatile disk, a Blu-ray (registered trademark) disk, a smart card, a flash memory (for example, a card, a stick, a Key drive), a Floppy (registered trademark) disk, a magnetic stripe, and the like. The above-described storage medium can be, for example, a database, a server, and other appropriate medium including at least one of the storage device 1002 and the auxiliary storage device 1003.

[0144] The communication device 1004 is hardware (a transceiver device) for communication between computers via at least one of a wired network and a wireless network, and can also be referred to as a network device, a network controller, a network card, a communication module, and the like. The communication device 1004 can also be configured to include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, and the like, to implement at least one of frequency division duplex (FDD) and time division duplex (TDD). For example, a transceiving antenna, an amplification section, a transceiving section, a transmission path interface, and the like can also be implemented by the communication device 1004. The transceiving section can also be implemented physically or logically by a transmission section and a reception section.

[0145] The input device 1005 is an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, and the like) that receives input from the outside. The output device 1006 is an output device (for example, a display, a speaker, an LED lamp, and the like) that implements output to the outside. In addition, the input device 1005 and the output device 1006 can also be integrally configured (for example, a touch panel).

[0146] Furthermore, the processor 1001 and each device such as the storage device 1002 are connected by a bus 1007 for communication of information. The bus 1007 can be configured by a single bus, or can be configured by different buses between devices.

[0147] Furthermore, the base station 10 and the terminal 20 may be configured to include hardware such as a microprocessor, a digital signal processor (DSP), an ASIC (Application Specific Integrated Circuit), a PLD (Programmable Logic Device), or an FPGA (Field Programmable Gate Array), and may implement some or all of the functional blocks using this hardware. For example, the processor 1001 may be implemented using at least one of these hardware components.

[0148] The power transmitting device 30 may also include hardware constituting a power transmitting unit for wirelessly powering the terminal 20. The terminal 20 may also include hardware constituting a power receiving unit for wirelessly receiving power from the power transmitting device 30. The terminal 20 may also include hardware constituting a power transmitting unit for wirelessly powering the terminal 20.

[0149] Figure 10 2001 shows a structural example of a vehicle. Figure 10 As shown, vehicle 2001 includes a drive unit 2002, a steering unit 2003, an accelerator pedal 2004, a brake pedal 2005, a shift lever 2006, front wheels 2007, rear wheels 2008, an axle 2009, an electronic control unit 2010, various sensors 2021 to 2029, an information service unit 2012, and a communication module 2013. The various forms and embodiments described in this disclosure may also be applied to a communication device mounted on vehicle 2001, such as communication module 2013.

[0150] The driving unit 2002 is composed of, for example, an engine, a motor, or a hybrid of an engine and a motor. The steering unit 2003 includes at least a steering wheel (also referred to as a steering wheel) and is configured to steer at least one of the front wheels and the rear wheels based on the user's operation of the steering wheel.

[0151] The electronic control unit 2010 is composed of a microprocessor 2031, a memory (ROM, RAM) 2032, and a communication port (IO port) 2033. Signals from various sensors 2021 to 2029 included in the vehicle 2001 are input to the electronic control unit 2010. The electronic control unit 2010 may also be referred to as an ECU (Electronic Control Unit).

[0152] As signals from various sensors 2021 to 2029, there are a current signal from a current sensor 2021 that monitors a current of a motor, a rotational speed signal of a front wheel or a rear wheel acquired by a rotational speed sensor 2022, an air pressure signal of the front wheel or the rear wheel acquired by an air pressure sensor 2023, a vehicle speed signal acquired by a vehicle speed sensor 2024, an acceleration signal acquired by an acceleration sensor 2025, a depression amount signal of an accelerator pedal acquired by an accelerator pedal sensor 2029, a depression amount signal of a brake pedal acquired by a brake pedal sensor 2026, an operation signal of a shift lever acquired by a shift lever sensor 2027, a detection signal for detecting an obstacle, a vehicle, a pedestrian, or the like acquired by an object detection sensor 2028, and the like.

[0153] The information service section 2012 is constituted by various devices for providing (outputting) various information such as driving information, traffic information, entertainment information, and one or more ECUs that control these devices, such as a car navigation system, an audio system, a speaker, a television, a radio, and the like. The information service section 2012 provides various multimedia information and multimedia services to an occupant of the vehicle 2001 using information acquired from an external device via the communication module 2013 or the like. The information service section 2012 can include an input device that accepts input from the outside (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, a touch panel, and the like), and can include an output device that implements output to the outside (for example, a display, a speaker, an LED lamp, a touch panel, and the like).

[0154] The driving assistance system section 2030 is constituted by various devices for providing a function of preventing an accident from occurring or reducing a driving load on a driver, such as a millimeter wave radar, a LiDAR (Light Detection and Ranging), a camera, a positioner for positioning (for example, a GNSS or the like), map information (for example, a high-definition (HD) map, an autonomous vehicle (AV) map, or the like), a gyro system (for example, an IMU (Inertial Measurement Unit), an INS (Inertial Navigation System), or the like), an AI (Artificial Intelligence) chip, an AI processor, and one or more ECUs that control these devices. In addition, the driving assistance system section 2030 transmits and receives various information via the communication module 2013, and implements a driving assistance function or an autonomous driving function.

[0155] The communication module 2013 can communicate with the microprocessor 2031 and the constituent elements of the vehicle 2001 via the communication port. For example, the communication module 2013 transmits and receives data between the drive section 2002, the steering section 2003, the accelerator pedal 2004, the brake pedal 2005, the shift lever 2006, the front wheels 2007, the rear wheels 2008, the axles 2009, the microprocessor 2031 and the memory (ROM, RAM) 2032 within the electronic control section 2010, and the sensors 2021 to 2029 possessed by the vehicle 2001 via the communication port 2033.

[0156] The communication module 2013 can be controlled by the microprocessor 2031 of the electronic control section 2010, and is a communication device that can communicate with external devices. For example, various information is transmitted and received between the external devices via wireless communication. The communication module 2013 can be located inside or outside the electronic control section 2010. The external devices can also be base stations, mobile stations, and the like, for example.

[0157] The communication module 2013 can also transmit at least one of the signals input to the electronic control section 2010 from the various sensors 2021 to 2028 described above, information obtained based on the signals, and information based on input from the outside (user) obtained via the information service section 2012 to the external devices via wireless communication. The electronic control section 2010, the various sensors 2021 to 2028, the information service section 2012, and the like can also be referred to as input sections that accept input. For example, the PUSCH transmitted by the communication module 2013 can include information based on the above input.

[0158] The communication module 2013 receives various information (traffic information, signal information, inter-vehicle information, and the like) transmitted from the external devices, and displays it on the information service section 2012 possessed by the vehicle 2001. The information service section 2012 can also be referred to as an output section that outputs information (for example, outputs information to a display, a speaker, and the like based on the PDSCH (or data / information decoded from the PDSCH) received by the communication module 2013). In addition, the communication module 2013 stores the various information received from the external devices in the memory 2032 available to the microprocessor 2031. The microprocessor 2031 can also control the drive section 2002, the steering section 2003, the accelerator pedal 2004, the brake pedal 2005, the shift lever 2006, the front wheels 2007, the rear wheels 2008, the axles 2009, the sensors 2021 to 2029, and the like possessed by the vehicle 2001 based on the information stored in the memory 2032.

[0159] (Summary of Embodiments)

[0160] As described above, according to the embodiment of the present application, there is provided a terminal having: a communication section that receives a notification relating to power supply from a base station; a power receiving section that accepts wireless power supply based on the notification relating to power supply; and a control section that decides whether or not to perform an action relating to power supply based on a connection state with a network.

[0161] According to the above-described structure, the terminal 20 is able to appropriately perform a power supply action based on the connection state of communication. That is, in a wireless communication system, it is possible to perform wireless power supply in accordance with the communication state of the terminal.

[0162] The control section can also perform an action relating to power supply in the case of migration to a specific connection state. With this structure, the terminal 20 is able to appropriately perform a power supply action based on the connection state of communication.

[0163] The control section can also not perform an action relating to power supply in the case of migration to a specific connection state. With this structure, the terminal 20 is able to appropriately perform a power supply action based on the connection state of communication.

[0164] The control section can also migrate to a connection state in which an action relating to power supply is performed and only a part of an action relating to communication is performed. With this structure, the terminal 20 is able to appropriately perform a power supply action based on the connection state of communication.

[0165] The control section can also perform an action relating to power supply in a specific connection state in the case of satisfaction of a specific condition. With this structure, the terminal 20 is able to appropriately perform a power supply action based on the connection state of communication.

[0166] In addition, according to the embodiment of the present application, there is provided a power supply method performed by a terminal, including the steps of: receiving a notification relating to power supply from a base station; accepting wireless power supply based on the notification relating to power supply; and deciding whether or not to perform an action relating to power supply based on a connection state with a network.

[0167] According to the above-described structure, the terminal 20 is able to appropriately perform a power supply action based on the connection state of communication. That is, in a wireless communication system, it is possible to perform wireless power supply in accordance with the communication state of the terminal.

[0168] (Supplement to Embodiment)

[0169] The above describes embodiments of the present application, but the disclosed application is not limited to such embodiments, and those skilled in the art will understand various modifications, changes, alternatives, substitutions, and the like. Specific numerical examples are used to facilitate understanding of the application, but these numerical examples are merely examples, and any appropriate arbitrary values can be used unless otherwise specified. The items in the above description are not essential to the present application, and two or more of the items described in the items can be combined as needed, or the item can be applied to the item described in another item (as long as there is no contradiction). The boundaries of the functional blocks or processing blocks in the functional block diagram do not necessarily correspond to the boundaries of physical components. The actions of multiple functional blocks can be performed by one physical component, or the actions of one functional block can be performed by multiple physical components. The order of the processing steps described in the embodiments can be changed as long as there is no contradiction. The base station 10 and the terminal 20 are described using a functional block diagram for convenience of explanation of the processing, but such devices can also be implemented by hardware, software, or a combination thereof. Software that acts according to the embodiments of the present application by the processor of the base station 10 and software that acts according to the embodiments of the present application by the processor of the terminal 20 can each be stored in a random access memory (RAM), a flash memory, a read only memory (ROM), an EPROM, an EEPROM, a register, a hard disk (HDD), a removable disk, a CD-ROM, a database, a server, and other appropriate arbitrary storage media.

[0170] Further, the notification of the information is not limited to the forms / embodiments described in the present disclosure, and other methods can be used. For example, the notification of the information can be implemented by physical layer signaling (e.g., DCI (Downlink Control Information), UCI (Uplink Control Information)), higher layer signaling (e.g., RRC (Radio Resource Control) signaling, MAC (Medium Access Control) signaling, broadcast information (MIB (Master Information Block), SIB (System Information Block)), other signals, or a combination thereof. Further, the RRC signaling can also be referred to as an RRC message, and for example, can be an RRC Connection Setup message, an RRC Connection Reconfiguration message, or the like.

[0171] The forms / embodiments described in the present disclosure can also be applied to at least one of systems utilizing LTE (Long Term Evolution), LTE-A (LTE-Advanced), SUPER 3G, IMT-Advanced, 4G (4th generation mobile communication system), 5G (5th generation mobile communication system), 6th generation mobile communication system (6G), xth generation mobile communication system (xG) (xG (x is an integer, a fraction, etc.)), FRA (Future Radio Access), NR (new Radio), new radio access (NX), future generation radio access (FX), W-CDMA (registered trademark), GSM (registered trademark), CDMA2000, UMB (Ultra Mobile Broadband), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, UWB (Ultra-WideBand), Bluetooth (registered trademark), other appropriate systems, and next-generation systems extended, modified, created, and specified based on these systems. In addition, a plurality of systems (for example, at least one of LTE and LTE-A and 5G, etc.) can be combined and applied.

[0172] For the processing steps, timing, flow, etc. of each form / embodiment described in the present specification, the order can be changed without contradiction. For example, for the method described in the present disclosure, the elements of various steps are prompted using the order of the examples, but are not limited to the specific order prompted.

[0173] In the present specification, certain actions performed by the base station 10 are sometimes also performed by an upper node thereof, as appropriate. In a network constituted by one or more network nodes having the base station 10, it is obvious that various actions performed for communication with the terminal 20 can be performed by at least one of the base station 10 and other network nodes (for example, consider an MME or an S-GW, but not limited to these) other than the base station 10. In the above, a case where the other network node than the base station 10 is one is exemplified, but the other network node can also be a combination of a plurality of other network nodes (for example, an MME and an S-GW).

[0174] Information or signals and the like explained in the present disclosure can be output from a higher layer (or lower layer) to a lower layer (or higher layer). It is also possible to input or output via a plurality of network nodes.

[0175] Information and the like input or output can be saved in a specific location (for example, a memory), and can be managed using a management table. Information and the like input or output can be rewritten, updated, or appended. Information and the like output can also be deleted. Information and the like input can also be transmitted to other devices.

[0176] Determination in the present disclosure can be performed by a value (0 or 1) represented by 1 bit, by a Boolean value (true or false), or by comparison of numerical values (for example, comparison with a predetermined value).

[0177] As for software, regardless of being called software, firmware, middleware, microcode, hardware description language, or by another name, it should be broadly interpreted as meaning commands, command sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, functions, and the like.

[0178] In addition, software, commands, information, and the like can also be transmitted and received via a transmission medium. For example, in a case where software is transmitted from a web page, a server, or another remote source using at least one of wired technology (coaxial cable, optical fiber cable, twisted pair cable, digital subscriber line (DSL), and the like) and wireless technology (infrared rays, microwaves, and the like), at least one of these wired technology and wireless technology is included in the definition of the transmission medium.

[0179] The information, signals, and / or the like described in the present disclosure can be represented using various different technologies and / or techniques. For example, data, commands, instructions, information, signals, bits, symbols, chips, and / or the like that can be referenced throughout the above description can be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0180] In addition, the terms described in the present disclosure and the terms required for understanding the present disclosure can be replaced with terms having the same or similar meanings. For example, at least one of a channel and a symbol can also be a signal (signaling). Also, a signal can be a message. Also, a component carrier (CC) can be referred to as a carrier frequency, a cell, a frequency carrier, or the like.

[0181] The terms "system" and "network" used in the present disclosure can be used interchangeably.

[0182] Also, the information, parameters, and / or the like described in the present disclosure can be represented using absolute values, relative values with respect to predetermined values, or corresponding other information. For example, a radio resource can be indicated using an index.

[0183] The names used for the above-described parameters are non-limiting names in any respect. Further, the formulas and / or the like using the parameters are sometimes different from those explicitly disclosed in the present disclosure. Various channels (e.g., PUCCH, PDCCH, and / or the like) and information elements can be identified by all appropriate names, and thus various names assigned to the various channels and information elements are non-limiting names in any respect.

[0184] In the present disclosure, the terms "base station (BS)", "wireless base station", "base station device", "fixed station", "NodeB", "eNodeB (eNB)", "gNodeB (gNB)", "access point", "transmission point", "reception point", "transmission / reception point", "cell", "sector", "cell group", "carrier", "component carrier", and / or the like can be used interchangeably. The base station is sometimes referred to as a macro cell, a small cell, a femto cell, a pico cell, and / or the like.

[0185] A base station can accommodate one or plural (for example, 3) cells. In a case where the base station accommodates plural cells, the coverage area of the base station as a whole can be divided into plural smaller areas, and each of the smaller areas can also be provided with a communication service by a base station subsystem (for example, a small-sized base station RRH: Remote Radio Head for indoor use). The term "cell" or "sector" refers to a part or the whole of the coverage area of at least one of the base station and the base station subsystem that provides a communication service in the coverage range.

[0186] In the present disclosure, the base station transmitting information to the terminal can also be replaced with the base station instructing the terminal of a control / action based on the information.

[0187] In the present disclosure, the terms "mobile station (MS)", "user terminal", "user equipment (UE)", "terminal", and the like can be used interchangeably.

[0188] For a mobile station, the following terms are also used by those skilled in the art: subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable terminology.

[0189] At least one of the base station and the mobile station can also be referred to as a transmission device, a reception device, a communication device, or the like. In addition, at least one of the base station and the mobile station can be a device mounted on a moving body, the moving body itself, or the like. The moving body refers to an object that can move, and the moving speed is arbitrary. In addition, of course, a case where the moving body is stopped is also included. The moving body includes, for example, a vehicle, a transport vehicle, an automobile, a motorcycle, a bicycle, a connected car, a shovel car, a bulldozer, a wheel loader, a dump truck, a forklift, a train, a bus, a rear car, a rickshaw, a ship and other watercraft, an airplane, a rocket, an artificial satellite, a drone (registered trademark), a multicopter, a quadcopter, a balloon, and an object mounted thereon, and is not limited thereto. In addition, the moving body can also be a moving body that autonomously travels based on a travel instruction. It can be a vehicle (for example, a car, an airplane, or the like), a moving body that moves in a unmanned manner (for example, a drone, a self-driving car, or the like), or a robot (manned or unmanned). In addition, at least one of the base station and the mobile station also includes a device that does not necessarily move when performing a communication operation. For example, at least one of the base station and the mobile station can be an IoT (Internet of Things) device such as a sensor.

[0190] In addition, the base station in the present disclosure can also be replaced with a user terminal. For example, a structure in which communication between the base station and the user terminal is replaced with communication between a plurality of terminals 20 (for example, also referred to as D2D (Device-to-Device), V2X (Vehicle-to-Everything), or the like) can also apply the forms / embodiments of the present disclosure. In this case, it can also be configured such that the terminal 20 has the functions of the base station 10 described above. In addition, the expressions such as "uplink" and "downlink" can also be replaced with expressions corresponding to inter-terminal communication (for example, "side"). For example, the uplink channel, the downlink channel, and the like can also be replaced with a side channel.

[0191] Likewise, the user terminal in the present disclosure can also be replaced with a base station. In this case, it can also be configured such that the base station has the functions of the user terminal described above.

[0192] The terms "determining" and "deciding" as used in the present disclosure also include a variety of actions. For example, "determining" or "deciding" can include "determining" or "deciding" that a state of affairs has been judged, calculated, computed, processed, derived, investigated, searched (e.g., searched in a table, a database, or other data structure), ascertained, or the like. In addition, "determining" or "deciding" can include "determining" or "deciding" that a state of affairs has been received (e.g., received information), transmitted (e.g., transmitted information), input, output, accessed (e.g., accessed data in a memory), or the like. Furthermore, "determining" or "deciding" can include "determining" or "deciding" that a state of affairs has been resolved, selected, chosen, established, compared, or the like. That is, "determining" or "deciding" can include "determining" or "deciding" that a certain action has been performed. In addition, "determining" or "deciding" can be replaced by "assuming", "expecting", "considering", or the like.

[0193] The terms "connected" and "coupled" or all modifications thereof are intended to mean all possible direct or indirect connections or couplings between two or more elements. Such a connection or coupling between elements can include one or more intervening elements. The coupling or connection between elements can be physical or logical, or a combination thereof. For example, "connected" or "coupled" can be replaced with "accessed". In the present disclosure, it can be considered that two elements are "connected" or "coupled" to each other using at least one of a wire, a cable, and a printed electrical connection, and as some non-limiting and non-inclusive examples, electromagnetic energy having a wavelength in a radio frequency region, a microwave region, and an optical region (including both visible and invisible regions) is used to "connect" or "couple" to each other.

[0194] The reference signal can be simply referred to as RS (Reference Signal), and can be referred to as a pilot (Pilot) depending on the applied standard.

[0195] The expression "based on" as used in the present disclosure is not intended to mean "only based on" unless specifically indicated otherwise. In other words, the expression "based on" means both "only based on" and "at least based on".

[0196] Any reference to elements using the expressions "1st", "2nd", and the like used in the present disclosure does not necessarily limit the number or order of the elements. These expressions can be used in the present disclosure as a convenient method of distinguishing between two or more elements. Accordingly, a reference to a 1st element and a 2nd element does not mean that only two elements are possible or that in any way the 1st element must precede the 2nd element in any way.

[0197] The expression "unit" in the structure of each of the above-described apparatuses can be replaced with the expression "part", "circuit", "device", or the like.

[0198] When the expressions "include", "including", and variations thereof are used in the present disclosure, these expressions mean the same as the expression "comprising". Also, the expression "or" used in the present disclosure does not mean the exclusive or.

[0199] A radio frame can be composed of one or more frames in the time domain. In the time domain, one or more frames can be referred to as a subframe. A subframe can be composed of one or more slots in the time domain. A subframe can also be a fixed length of time (e.g., 1 ms) independent of numerology.

[0200] A numerology can be a communication parameter applied to at least one of transmission and reception of a certain signal or channel. The numerology can indicate at least one of, for example, a subcarrier spacing (SCS), a bandwidth, a symbol length, a cyclic prefix length, a transmission time interval (TTI), a number of symbols per TTI, a radio frame structure, a specific filtering process performed by a transceiver in the frequency domain, a specific windowing process performed by a transceiver in the time domain, and the like.

[0201] A slot can be constituted by one or a plurality of symbols (OFDM (Orthogonal Frequency Division Multiplexing) symbols, SC-FDMA (Single Carrier Frequency Division Multiple Access) symbols, and the like) in the time domain. A slot can be a time unit based on a numerology.

[0202] A slot can include a plurality of mini-slots. Each mini-slot can be constituted by one or a plurality of symbols in the time domain. Further, a mini-slot can also be referred to as a sub-slot. A mini-slot can be constituted by a smaller number of symbols than a slot. A PDSCH (or PUSCH) transmitted in a time unit larger than a mini-slot can be referred to as PDSCH (or PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a mini-slot can be referred to as PDSCH (or PUSCH) mapping type B.

[0203] A radio frame, a subframe, a slot, a mini-slot, and a symbol each represent a time unit in transmission of a signal. A radio frame, a subframe, a slot, a mini-slot, and a symbol can each be referred to by other names.

[0204] For example, 1 subframe can be referred to as a transmission time interval (TTI), a plurality of consecutive subframes can also be referred to as a TTI, 1 slot or 1 mini-slot can also be referred to as a TTI. That is, at least one of a subframe and a TTI can be a subframe (1 ms) in the existing LTE, can be a period shorter than 1 ms (for example, 1 to 13 symbols), or can be a period longer than 1 ms. In addition, a unit representing a TTI can not be referred to as a subframe, but can be referred to as a slot, a mini-slot, or the like.

[0205] Here, a TTI, for example, refers to a minimum time unit of scheduling in wireless communication. For example, in an LTE system, a base station performs scheduling in which a radio resource (a frequency bandwidth, a transmission power, and the like, which can be used in each terminal 20) is allocated to each terminal 20 in units of a TTI. In addition, the definition of a TTI is not limited thereto.

[0206] A TTI can be a transmission time unit of a data packet (a transport block) after channel coding, a code block, a codeword, or the like, or can be a processing unit of scheduling, link adaptation, or the like. In addition, when a TTI is given, a time interval (for example, a number of symbols) in which a transport block, a code block, a codeword, or the like is actually mapped can be shorter than the TTI.

[0207] In addition, in a case where 1 slot or 1 mini-slot is referred to as a TTI, one or more TTIs (i.e., one or more slots or one or more mini-slots) can also be a minimum time unit of scheduling. Furthermore, the number of slots (mini-slots) constituting the minimum time unit of scheduling can also be controlled.

[0208] A TTI having a time length of 1 ms is also referred to as a normal TTI (TTI in LTE Rel. 8-12), a normal TTI (normal TTI), a long TTI (long TTI), a normal subframe, a normal subframe (normal subframe), a long (long) subframe, a slot, and the like. A TTI shorter than the normal TTI can also be referred to as a shortened TTI, a short TTI (short TTI), a partial TTI (partial or fractional TTI), a shortened subframe, a short (short) subframe, a mini-slot, a sub-slot, a slot, and the like.

[0209] In addition, for a long TTI (long TTI) (e.g., a normal TTI, a subframe, and the like), it can be understood as a TTI having a time length of more than 1 ms, and for a short TTI (short TTI) (e.g., a shortened TTI, and the like), it can be understood as a TTI having a TTI length less than that of the long TTI (long TTI) and a TTI length of 1 ms or more.

[0210] A resource block (RB) is a resource allocation unit in the time domain and the frequency domain, and in the frequency domain, can include one or more contiguous subcarriers. The number of subcarriers included in the RB can be the same regardless of the numerology, for example, can be 12. The number of subcarriers included in the RB can also be determined according to the numerology.

[0211] Furthermore, the time domain of the RB can include one or more symbols, and can be the length of 1 slot, 1 mini-slot, 1 subframe, or 1 TTI. One TTI, one subframe, and the like can each be constituted by one or more resource blocks.

[0212] In addition, one or more RBs can also be referred to as a physical resource block (PRB), a subcarrier group (SCG), a resource element group (REG), a PRB pair, an RB pair, and the like.

[0213] Furthermore, a resource block can be constituted by one or more resource elements (REs). For example, 1 RE can be a wireless resource area of 1 subcarrier and 1 symbol.

[0214] A bandwidth part (BWP: Bandwidth Part) (may also be referred to as a partial bandwidth, etc.) can also indicate a subset of contiguous common RBs (resource blocks) for a certain numerology in a certain carrier. Here, the common RBs can be determined by the index of the RBs with reference to a common reference point of the carrier. The PRB can be defined in a certain BWP and numbered within the BWP.

[0215] A BWP can include a BWP for UL (UL BWP) and a BWP for DL (DL BWP). One or more BWPs can be configured for a UE within one carrier.

[0216] At least one of the configured BWPs can be active, and it can not be assumed that the UE transmits / receives a predetermined signal / channel outside the active BWP. In addition, "cell", "carrier", etc. in the present disclosure can be replaced with "BWP".

[0217] The structures of the radio frame, the subframe, the slot, the mini-slot, the symbol, etc. described above are merely examples. For example, the number of subframes included in a radio frame, the number of slots per subframe or radio frame, the number of mini-slots included in a slot, the number of symbols and RBs included in a slot or a mini-slot, the number of subcarriers included in an RB, the number of symbols in a TTI, the symbol length, the cyclic prefix (CP) length, and the like can be variously changed.

[0218] In the present disclosure, for example, in a case where an article is added by a translation of a, an, and the in English, the present disclosure also includes a case where the article following these articles is plural.

[0219] In the present disclosure, the expression "A and B are different" can mean "A and B are mutually different". In addition, the expression can also mean "A and B are each different from C". The expressions "separate", "combine", and the like can also be interpreted as "different" as well.

[0220] Each form / implementation described in the present disclosure can be used alone, in combination, and can also be switched in use according to execution. In addition, the notification of predetermined information is not limited to being performed explicitly (for example, notification of "X is") and can also be performed implicitly (for example, without performing the notification of the predetermined information).

[0221] The present disclosure has been described in detail above, but it should be apparent that the present disclosure is not limited to the embodiments described above, but can be carried out in various changes and modified modes without departing from the spirit and scope of the present disclosure defined by the claims. The description of the present disclosure is intended for the purpose of illustration only and is not intended to limit the present disclosure in any way.

[0222] REFERENCE NUMERALS

[0223] 10 base station

[0224] 110 transmission section

[0225] 120 reception section

[0226] 130 setting section

[0227] 140 control section

[0228] 20 terminal

[0229] 210 transmission section

[0230] 220 reception section

[0231] 230 setting section

[0232] 240 control section

[0233] 30 power transmission device

[0234] 1001 processor

[0235] 1002 storage

[0236] 1003 auxiliary storage

[0237] 1004 communication device

[0238] 1005 input device

[0239] 1006 output device

[0240] 2001 vehicle

[0241] 2002 drive section

[0242] 2003 steering section

[0243] 2004 accelerator pedal

[0244] 2005 brake pedal

[0245] 2006 shift lever

[0246] 2007 front wheel

[0247] 2008 rear wheel

[0248] 2009 axle

[0249] 2010 electronic control unit

[0250] 2012 information service unit

[0251] 2013 communication module

[0252] 2021 current sensor

[0253] 2022 rotational speed sensor

[0254] 2023 air pressure sensor

[0255] 2024 vehicle speed sensor

[0256] 2025 acceleration sensor

[0257] 2026 brake pedal sensor

[0258] 2027 gear lever sensor

[0259] 2028 object detection sensor

[0260] 2029 accelerator pedal sensor

[0261] 2030 driving assistance system unit

[0262] 2031 microprocessor

[0263] 2032 memory (ROM, RAM)

[0264] 2033 communication port (I / O port)

Claims

1. A terminal comprising: a communication unit that receives a notification related to power supply from the base station; a power receiving unit configured to receive wireless power supply based on the notification regarding power supply; and The control unit determines whether to execute an action related to power supply based on the connection status with the network.

2. The terminal according to claim 1, wherein: The control unit executes an operation related to power supply when the connection state transitions to a specific state.

3. The terminal according to claim 1, wherein: The control unit does not perform operations related to power supply when the connection state transitions to a specific state. The terminal according to claim 1 , wherein: The control unit transitions to a connection state in which an operation related to power supply is executed and only a portion of an operation related to communication is executed. The terminal according to claim 1 , wherein: The control unit executes an operation related to power supply in a specific connection state when a specific condition is satisfied.

6. A power supply method, comprising the following steps performed by a terminal: receiving notifications related to power supply from a base station; receiving wireless power supply based on the notification related to power supply; and Based on the connection status with the network, decide whether to perform power-related actions.

Images