Terminal and power supply method

Abstract

A terminal is provided with a communication unit that transmits a discovery signal to a first terminal or receives a discovery signal from the first terminal, the communication unit receives a signal requesting power supply from the first terminal, and the terminal is provided with a control unit that autonomously determines a first resource to be used for power supply. The communication unit notifies the first terminal of information indicating the first resource, and the terminal has a power transmission unit that supplies power to the first terminal in the first resource.

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), technologies satisfying requirements such as a large capacity of the system, a high-speed data transmission rate, a low latency, simultaneous connection of a plurality of terminals, a low cost, and power saving are being researched (for example, Non-Patent Literature 1).

[0003] In LTE or NR, a UE category or a UE capability for IoT (Internet of Things) that reduces functions that a general terminal must support, such as functions related to a transmission / reception bandwidth and the number of antennas, are 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 IoT terminals, in recent years, attention to a power supply technology that utilizes wireless has been increasing, and research is actively being conducted. For example, a specific frequency band for wireless power supply is being researched, and the effects on the human body, wave interference with other communication devices, and the like are being verified, and in the case where there are no problems, the range of use is being expanded to outdoor, human-occupied spaces.

[0005] In addition, in 3GPP (registered trademark), standardization research on ultra-power-saving terminals that are premised on power supply using a surrounding environment such as 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 various use cases, a use case in which a terminal performs wireless power supply to other devices is envisaged. However, when a terminal performs sidelink communication, how to perform wireless power supply is not clear.

[0012] The present application has been achieved in view of the above-described problems, and aims to enable a terminal to perform wireless power supply in a wireless communication system.

[0013] Means for solving the problem

[0014] According to the disclosed technology, a terminal is provided, which has a communication section that transmits a discovery signal to a first terminal or receives a discovery signal from the first terminal, receives a signal that requests power supply from the first terminal, has a control section that autonomously decides a first resource used for power supply, notifies the first terminal of information indicating the first resource, and has a power transmission section that supplies power to the first terminal in the first resource.

[0015] Effects of the Invention

[0016] According to the disclosed technology, a terminal is able to perform wireless power supply in a wireless communication system. 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 supply related to an embodiment of the present application.

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

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

[0021] Figure 5 is a flowchart for explaining an example of wireless power supply related to an embodiment of the present application.

[0022] Figure 6 is a diagram showing an example (1) of wireless power supply related to an embodiment of the present application.

[0023] Figure 7 is a diagram showing an example (2) of wireless power supply related to an embodiment of the present application.

[0024] Figure 8 is a diagram showing an example (3) of wireless power supply related to an embodiment of the present application.

[0025] Figure 9 FIG. 4 is a diagram illustrating an example (4) of wireless power feeding involved in an embodiment of the present application.

[0026] Figure 10 FIG. 5 is a diagram illustrating an example of a functional structure of the base station 10 involved in an embodiment of the present application.

[0027] Figure 11 FIG. 6 is a diagram illustrating an example of a functional structure of the terminal 20 involved in an embodiment of the present application.

[0028] Figure 12 FIG. 7 is a diagram illustrating an example of a hardware structure of the base station 10 or the terminal 20 involved in an embodiment of the present application.

[0029] Figure 13 FIG. 8 is a diagram illustrating an example of a structure of the vehicle 2001 in an embodiment of the present application. DETAILED DESCRIPTION

[0030] Hereinafter, embodiments of the present application will be described with reference to the accompanying drawings. Note that the embodiments described below are examples, and the embodiments to which the present application is applied are not limited to the following embodiments.

[0031] In the operation of the wireless communication system in the embodiment of the present application, a related art is appropriately used. The related art is, for example, the existing LTE, but is not limited to the existing LTE. In addition, the term "LTE" used in this specification has a broad meaning including LTE-Advanced and a mode after LTE-Advanced (for example, a wireless standard of NR, 6G) unless specifically described.

[0032] Furthermore, in the embodiments of the present invention 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), and PUSCH (Physical Uplink Shared Channel) used in existing LTE systems are used. These are for ease of description, and the same signals and functions may also be referred to by other names. Additionally, the above terms in NR correspond to NR-SS, NR-PSS, NR-SSS, NR-PBCH, NR-PRACH, etc. However, even signals used in NR are not necessarily explicitly written as "NR-".

[0033] In addition, in embodiments of the present invention, the duplex mode can be TDD (Time Division Duplex), FDD (Frequency Division Duplex), or other modes (e.g., Flexible Duplex).

[0034] Furthermore, in embodiments of the present invention, the "configure" wireless parameters can be pre-configured predetermined values, or wireless parameters notified from the base station 10 or the terminal 20.

[0035] Figure 1 This is a diagram illustrating a structural example (1) of a wireless communication system according to an embodiment of the present invention. Figure 1 As shown, the wireless communication system in this embodiment of the invention includes a base station 10 and a terminal 20. Figure 1 The diagram shows one base station 10 and one terminal 20, but this is just one example; there could be multiple terminals.

[0036] Base station 10 is a communication device that provides one or more cells and wirelessly communicates with terminal 20. The physical resources of the wireless signal are defined in the time and frequency domains. 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 resource blocks. Base station 10 sends synchronization signals and system information to terminal 20. Synchronization signals are, for example, NR-PSS and NR-SSS. System information is transmitted, for example, via NR-PBCH, also known as broadcast information. Synchronization signals and system information can also be referred to as SSB (SS / PBCH block). Figure 1 As shown, base station 10 sends control signals or data to terminal 20 via DL (Downlink) and receives control signals or data from terminal 20 via UL (Uplink). Both base station 10 and terminal 20 are capable of beamforming for signal transmission and reception. Furthermore, both base station 10 and terminal 20 can apply MIMO (Multiple Input Multiple Output) based communication to DL or UL. Additionally, base station 10 and terminal 20 can also communicate via CA (Carrier Aggregation) based secondary cells (SCell) and primary cells (PCell). Moreover, terminal 20 can also communicate via DC (Dual Connectivity) based primary cells of base station 10 and primary SCG cells of other base stations 10.

[0037] Terminal 20 is a communication device with wireless communication capabilities, such as a smartphone, mobile phone, tablet computer, wearable terminal, or M2M (Machine-to-Machine) communication module. Figure 1 As shown, terminal 20 receives control signals or data from base station 10 via DL and transmits control signals or data to base station 10 via UL, thereby utilizing various communication services provided by the wireless communication system. Additionally, terminal 20 receives various reference signals transmitted from base station 10 and performs propagation path quality measurements based on the reception results of these reference signals.

[0038] Terminal 20 is capable of carrier aggregation to communicate with base station 10 by bundling multiple cells (multiple CCs (Component Carriers)). In carrier aggregation, one PCell (Primary cell) and one or more SCells (Secondary cells) are used. Alternatively, a PUCCH-SCell with a PUCCH can also be used.

[0039] With the proliferation of diverse devices (such as IoT devices), methods for charging or battery replacement for this vast number of devices are being researched. Regarding methods for powering various devices, including IoT devices, there has been increased interest in wireless power transfer (WPT) technology in recent years, and research is actively underway.

[0040] In IoT terminals, wireless power supply is being researched from the perspectives of cost and battery replacement; in handheld terminals, it is being studied from the perspectives of cost and terminal size or shape. If high-efficiency, high-capacity wireless power supply can be achieved, further advancements and diversification of terminals can be expected.

[0041] For example, research is underway to allocate specific frequency bands for wireless power supply, verifying its impact on the human body and interference with radio waves from other communication devices, and expanding its use to outdoor and populated spaces if no problems arise.

[0042] Furthermore, 3GPP (registered trademark) has conducted standardized research on ultra-low power terminals that utilize the surrounding environment, such as sunlight, wind, water, electromagnetic fields, heat, sound, vibration, etc., or wirelessly, for power supply (e.g., non-patent literature 2). By achieving wireless power supply, battery-based charging, wired charging, or battery replacement are no longer necessary.

[0043] Terminal 20B can also be powered wirelessly by terminal 20A or power transmission equipment 30 connected to terminal 20A. For terminal 20B, the terminal 20A that transmits power or the power transmission equipment 30 can be the same as or different from the terminal 20A that transmits and receives data.

[0044] The equipment for supplying power, namely the power transmission equipment 30, may also have the features shown in 1)-3).

[0045] 1) The type of transmission equipment 30 may be equivalent to a base station, IAB (Integrated Access Backhaul), repeater, RIS (Reconfigurable Intelligent Surface), TRP (transmission / reception point), or terminal, or the function of the equipment for power transmission may be specified separately.

[0046] 2) It is conceivable that wirelessly powered base stations, IABs, repeaters, RIS, TRPs, or terminals have full-duplex functionality.

[0047] 3) The IAB, repeater, RIS, TRP or terminal that provides wireless power supply can be connected to the base station when providing power supply, or it can be disconnected when providing power supply.

[0048] In addition, power transmission equipment, base stations, IABs, repeaters, RIS, TRPs, and terminals can be interchanged.

[0049] Regarding the powered terminal 20, it may have the features shown in 1)-3).

[0050] 1) It can move or be fixed in position.

[0051] 2) It may or may not have the ability to connect to base stations, IABs, repeaters, RIS, TRPs or terminals for data communication.

[0052] 3) Regarding the type or shape of the terminal, it can be a handheld terminal (smartphone, tablet, etc.), IoT terminal (sensor, wearable terminal, surveillance camera, smart device, home appliance, etc.), ambient IoT terminal (tag, card, etc.), robot, drone, electric vehicle, PC, etc., but is not limited to these.

[0053] Figure 2 This is a diagram illustrating a structural example (1) of wireless power supply according to an embodiment of the present invention. Figure 2 As shown, the power transmission device 30 can be installed separately from the terminal 20A to wirelessly power the terminal 20B. The terminal 20A can communicate with the terminal 20B to control the wireless power supply based on the power transmission device 30. The power transmission device 30 can be installed indoors on walls, ceilings, etc., or outdoors on utility poles, streetlights, etc. In addition, the terminal 20B can also act as the power transmission device 30 to wirelessly power other terminals 20B. Hereinafter, wireless power supply from the power transmission device 30, which is not included in the terminal 20A, to the terminal 20B will also be described as wireless power supply from the terminal 20A to the terminal 20B.

[0054] Figure 3 This is a diagram illustrating a structural example (2) of wireless power supply according to an embodiment of the present invention. Figure 3 As shown, the power transmission equipment 30 can be installed together with the terminal 20A to provide wireless power to the terminal 20B. The terminal 20A can communicate with the terminal 20B to control the wireless power supply based on the power transmission equipment 30. Hereinafter, the wireless power supply from the power transmission equipment 30 included in the terminal 20A to the terminal 20B will also be described as the wireless power supply from the terminal 20A to the terminal 20B.

[0055] Here, among various use cases, we envision a scenario where a terminal performs wireless power supply to other devices. However, how wireless power supply is performed when the terminal is performing sidelink communication is unclear.

[0056] Therefore, especially when the terminal autonomously selects resources to perform sidelink communication, wireless power supply can be performed as described in actions 1)-7) below. Furthermore, when performing sidelink communication based on resources notified from the base station or network operator, actions 1)-7) below can also be applied in the same way. Moreover, one or more actions 1)-7) can be performed in combination, or all actions can be performed.

[0057] The following is an explanation of action 1).

[0058] A UE (hereinafter referred to as "UE-X") supplies power to another UE (hereinafter referred to as "UE-Y") via radio in a sidelink. The execution process may include the following: Figure 4 The steps in the process can be any step, or they can include all steps, or they can include some steps but not some steps.

[0059] Figure 4 This is a timing diagram illustrating an example of wireless power supply according to an embodiment of the present invention. In step S101, UE-X sends a UE discovery signal to UE-Y. Alternatively, UE-Y may also send a UE discovery signal to UE-X. In the next step S102, UE-Y and UE-X perform PC5-RRC connection establishment. UE-Y may initiate PC5-RRC connection establishment, and UE-X may also initiate PC5-RRC connection establishment.

[0060] In the next step S103, UE-Y sends a power supply request to UE-X. In the next step S104, UE-X supplies power to UE-Y. In the next step S105, UE-Y sends a power supply status and / or channel status report to UE-X. UE-X and UE-Y may repeatedly execute steps S104 and S105.

[0061] Furthermore, beam control-related actions can be performed or not. When beam control-related actions are performed, the same beam used for power supply and communication can be used. Additionally, beam control for wireless power supply can be performed; this beam control can be the same as or different from the beam control for communication.

[0062] The above is an explanation of Action 1). Through Action 1), it is possible to perform wireless power supply from the terminal to other terminals.

[0063] The following is an explanation of action 2).

[0064] The UE-X that provides power can send a UE discovery signal. Sending this signal signifies that power supply is possible. The UE-Y that receives power can receive and / or monitor this signal. Based on information related to the received signal (e.g., signal strength), UE-Y can determine that UE-X is the counterparty for power supply. A PC5-RRC connection can then be established between UE-X and UE-Y.

[0065] The UE-Y receiving power can send a UE discovery signal. Sending this signal can signify a notification that it is searching for UEs capable of providing power. The UE-X providing power can receive and / or monitor this UE discovery signal. After receiving the UE discovery signal, the UE-X can send an acknowledgment signal to UE-Y. This acknowledgment signal can signal that power can be supplied from UE-X to UE-Y. UE-X can decide whether to send this acknowledgment signal based on information related to the received signal (e.g., signal strength). UE-Y can then designate UE-X, which has sent the acknowledgment signal, as the counterpart to the power supply action. Afterwards, a PC5-RRC connection can be established between UE-X and UE-Y.

[0066] The discovery signal can be sent using resources defined for discovery, or resources provided by setting or pre-setting, or it can be sent using communication resources.

[0067] The discovery signal can be used to notify or receive information about wireless power supply. Furthermore, the discovery signal can also be used to notify or receive information related to wireless power supply (e.g., methods, resources).

[0068] The sending, receiving, or monitoring of signals used for detection can be performed regardless of whether power is supplied, or it can be limited to the time when power is not supplied.

[0069] The ability to transmit and receive radio power related capabilities can be used during or after the establishment of a PC5-RRC connection between UE-X and UE-Y, and this capability can also determine the success or failure of the PC5-RRC connection establishment. Whether UE-X or UE-Y sends the discovery signal can be defined in the specification or determined based on (pre-)settings.

[0070] The above is an explanation of action 2). Through action 2), the object performing the power supply action can be identified.

[0071] The following is an explanation of action 3).

[0072] UE-Y can send a power request to UE-X. In the power request, one or more of the information shown in 1)-12) below can be sent.

[0073] 1) Information indicating how much power supply is desired. This information could be energy [Wh], or the remaining battery capacity, insufficient battery capacity, and / or rechargeable battery capacity at the reporting time. UE-X can use this information to determine the amount of power to supply.

[0074] 2) Channel conditions. For example, the channel conditions can be information measured based on signals related to action 2) above, or information measured based on signals used for discovery above. Alternatively, the channel conditions can also be information measured based on signals related to communication.

[0075] 3) Capabilities related to wireless power supply. This capability can refer to the availability of support for the power supply method or the ability to perform communication and wireless power supply simultaneously.

[0076] 4) Capability information related to wireless power supply. This information may include the frequency, carrier, band, FR (Frequency Range), band combination, and part or all of the network type that can receive power. UE-Y can report power supply support to UE-X in terms of frequency, carrier, band, FR, band combination, or network type.

[0077] The network type can be any of the following: TN (Terrestrial Network), NTN (Non-Terrestrial Network), Licensed Spectrum, Unlicensed Spectrum, IAB (Integrated Access and Backhaul), NCR (Network-controlled Repeater), RIS (Reconfigurable Intelligent Surface), Uu (the radio interface between UTRAN (Universal Terrestrial Radio Access Network) and UE (User Equipment), or SL (Sidelink). That is, UE-Y can report to UE-Y whether power supply is available in these respective networks.

[0078] 5) Capability information related to wireless power supply. This information may include the methods that can receive power. UE-Y can report power support to UE-X for each method. Support for any method can be reported as the default, and other methods can be reported to UE-X as additionally supported methods. This information may include waveform, subcarrier spacing, signal type, number of antennas, and beam management actions.

[0079] 6) Capability information related to wireless power supply. This information may include the maximum supported power capacity, maximum supported efficiency, and / or maximum supported power. It may also report the maximum power capacity, maximum efficiency, and / or maximum power at a specific time. Specific power capacity, specific efficiency, and / or specific power can be specified, and reports can be made on whether the specified power capacity, specific efficiency, and / or specific power are met.

[0080] 7) Indicates the capability information for simultaneously performing power receiving and communication for each FR combination or band domain combination. UE-Y can report to UE-X the capability for simultaneously performing power receiving and communication for each band domain combination.

[0081] 8) Information on the ability to simultaneously perform power receiving and communication is provided for each network type. The network type can be any of the following: TN, NTN, licensed spectrum, unlicensed spectrum, IAB, NCR, RIS, Uu, SL.

[0082] 9) Information on the ability to simultaneously perform power receiving and communication is provided for each power supply method. This communication method can be any of DL, UL, or full-duplex. UE-Y can report support for simultaneous power receiving and communication to UE-X for each of these communication methods.

[0083] 10) Distinguish and represent the ability to simultaneously perform power receiving and communication based on whether the communication beam and the power supply beam are the same.

[0084] 11) Distinguish and represent the ability to simultaneously perform power receiving and communication based on whether the communication cell (or band) and the power supply cell (or band) are the same.

[0085] 12) Distinguish and separately indicate the ability to simultaneously perform power receiving and communication based on whether the communication counterpart and the power supply counterpart are the same. The counterpart can be a device or a TRP.

[0086] Furthermore, supporting simultaneous execution can refer to meeting the quality requirements of communication and power supply when they are executed simultaneously, as well as the quality requirements of communication and power supply when they are executed separately. Alternatively, it can refer to meeting the quality requirements of communication and power supply when they are executed simultaneously, which are lower than the quality requirements of communication and power supply when they are executed separately.

[0087] The timing and / or resources for sending the power request signal can be determined autonomously by the UE-Y. The timing for sending the power request signal can be limited to a time when power has not been received and / or a time when future power reception has not been decided.

[0088] The transmission and reception of power supply request signals can be performed through any one of the control channel (PSCCH), data channel (PSSCH), discovery channel (PSDCH), and reporting channel (PSFCH (Physical Sidelink Feedback Channel)).

[0089] When a power request signal is included in the SL-SCH (Sidelink Shared Channel) and transmitted, it can be transmitted via any of the MAC-CE, MAC sub-header, or MAC-SDU (Service data unit). The priority order of the power request signal with data from the SL-CCCH (Common Control Channel), data from any logical channel other than the SL-CCCH, or the MAC-CE can be arbitrary. For example, the power request signal can have a lower priority than data from the SL-CCCH.

[0090] The priority of power supply request signals and UL signals can also be defined. It can be higher or lower than the priority involved in wireless power supply within the Uu. It can be higher or lower than the priority involved in control information within the Uu. It can be higher or lower than the priority involved in data signals within the Uu.

[0091] The above is an explanation of action 3). Through action 3), a terminal can request wireless power from other terminals.

[0092] The following is an explanation of action 4).

[0093] UE-X can send information about power supply resources to UE-Y and / or other UEs, and perform power supply to UE-Y in that resource.

[0094] Figure 5 This is a flowchart illustrating an example of wireless power supply according to an embodiment of the present invention. In step S1041, UE-X autonomously selects the resources used for power supply. Each UE-X (UE-X1, UE-X2, ...) can notify each other of the resources used for power supply and monitor the notifications, determining the resources used for power supply based on the notifications, for example, in a non-overlapping manner. Furthermore, the resources used for power supply by UE-X can be scheduled by base station 10. Moreover, overlap can refer to overlap in the time domain or overlap in the frequency domain.

[0095] In step S1042, UE-X notifies UE-Y of the resources used for power supply. The resources used for power supply can be notified as periodic resources, aperiodic resources, or semi-persistent resources that are activated, deactivated, or released. The resources used for power supply can also be notified as specific time widths. The notification unit for the resources used for power supply can be a time slot, a frame, milliseconds, seconds, minutes, etc. The notification unit for the resources used for power supply can be a PRB and / or sub-channel, a band domain, bandwidth, and / or BWP, or a carrier frequency and / or FR. The power supply-oriented beam corresponding to the resource can also be notified along with the resources used for power supply. Notification of the resources used for power supply can also be performed within communication resources.

[0096] In step S1043, UE-Y accepts power based on the notification from UE-X. For example, UE-Y may accept power during the time resources in which the power-facing beam of UE-X, corresponding to the power-facing beam used by its own device, is used. Similarly, UE-Y may accept power during the time resources in which the power-facing transmit beam of UE-X, corresponding to the power-facing receive beam used by its own device, is used. UE-Y may accept power during the notified resources and / or the time resources in which its own device can accept power. UE-Y may accept power during all the time resources of the notified resources, or only a portion of the time resources.

[0097] Additionally, UE-Y can assume that the time between the notification related to power supply and the power supply start timing is longer than a predetermined period. This predetermined period can be determined based on the UE processing time.

[0098] Notifications from UE-X to UE-Y can be performed in any of the formats shown in a)-e) below.

[0099] a) Multicast PSSCH (e.g., MAC-CE), SCI for all UEs, and / or SCI for multiple UEs. It can broadcast all information about which power supply beam is used to perform power supply on which power supply resource. It can also broadcast resource information related to the power supply beam corresponding to the communication beam used in the broadcast. It can define a new SCI format for power supply, and can set or pre-set the resources for receiving this SCI format. It can also notify information via fields in the communication SCI format.

[0100] b) PC5-RRC connection, unicast PSSCH (e.g., MAC-CE), and / or UE-specific SCI. Information regarding the resources that the UE should receive power can be communicated. Resource information related to the power supply beam corresponding to the communication beam used in the broadcast can also be broadcast. A new SCI format for power supply can be defined, and resources for receiving the SCI format can be set or pre-set. Information can also be communicated via fields in the communication SCI format.

[0101] c) An RNTI (Radio Network Temporary Identifier) ​​can be defined and used in this notification for transmitting power supply association information. This can be applied to a) above and / or b) above.

[0102] d) The format of the notification can be determined by the RRC parameters or by (pre-)setting.

[0103] e) You can define the UE capability that supports receiving notifications based on which format and report the supported functions. Alternatively, supporting Power over Radio (POT) may also mean supporting multiple or all of the defined notification formats.

[0104] In addition, resources for power supply and resources for communication can be included in the same resource pool, or they can be defined to be included in different resource pools, and they can also be set or pre-set.

[0105] The above is an explanation of action 4). Through action 4), the action of receiving power can be performed in the appropriate resource. In addition, it is possible to send and receive power-related notifications using an appropriate format.

[0106] The following is an explanation of action 5).

[0107] Information related to power supply status can be reported from UE-Y to UE-X. This information can be as shown in a)-d) below.

[0108] a) This can be the power [W], average power [W], and / or energy [Wh] involved in power supply performed within a specific time interval T. The start timing of the specific time interval T can be the start of power supply, the last report, or a specified timing. The end timing of the specific time interval T can be before the upcoming report, a specified timing, or a timing T elapsed since the start timing. The definition of the specific time interval T is the same as below. The range and / or granularity of the report value can be predefined or set. Additionally, the report content can be an index corresponding to the report value; the correspondence between the report value and the index can be predefined or set. For example, index Z1 can be reported when the report value is greater than or less than X2, and index Z2 can be reported when the report value is greater than or less than X3.

[0109] (b) This could be information indicating whether power supply performed within a specific time interval T meets specific conditions. It could be information indicating whether the power [W], average power [W], and / or energy [Wh] involved in power supply performed within a specific time interval T exceeds a predetermined value. It could also be information indicating whether power supply performed within a specific time interval T was received beyond a specific time interval T2. This predetermined value and the specific time interval T2 can be predefined or set. Information indicating whether power supply performed within a specific time interval T meets specific conditions can be reported from UE-Y to UE-X as ACK (e.g., bit value 1) or NACK (e.g., bit value 0).

[0110] c) This could be information indicating how much power is still available. For example, this information could be energy [Wh]. Alternatively, it could be the remaining or insufficient battery capacity at the reporting time.

[0111] d) can be information representing the results of quality measurements related to the power supply beam.

[0112] Reporting of information related to power supply status can be performed at the time intervals shown in a)-f) below. Information reporting can be performed from UE-Y to UE-X.

[0113] a) Reporting of information related to power supply status can be performed periodically. Figure 6 This is a diagram illustrating an example (1) of wireless power supply according to an embodiment of the present invention. Figure 6 As shown, UE-X can notify periodic resources related to power supply, and within the resources used for reporting determined based on these periodic resources, it can perform the reporting of information related to power supply status. When UE-Y receives a power supply trigger from UE-X to begin power supply, it can begin powering on and further begin reporting information related to power supply status. The power supply trigger sent from UE-X to UE-Y can include information indicating the periodic resource, or the periodic resource can be preset. UE-Y can report information related to power supply status to UE-X only during the period from the start to the end of power supply. Alternatively, after initiating reporting related to power supply status, UE-Y can continue reporting regardless of whether power is supplied until the settings for reporting information related to power supply status are changed.

[0114] (b) Reporting of information related to power supply status can be performed semi-persistently. Periodic resources can be set by UE-X based on activation or deactivation (release) settings or notifications, during which UE-Y can report power supply status information to UE-X. UE-Y can periodically report power supply status information to UE-X from the time of activation until deactivation. UE-Y can send ACK or NACK to UE-X upon receiving a deactivation command. Activation or deactivation can be notified to UE-Y via DCI or MAC-CE (Medium Access Control-Control Element). UE-Y can only report power supply status information to UE-X during the interval from the start to the end of power supply. Alternatively, UE-Y can continue reporting based on activation and deactivation regardless of the presence or absence of power supply after initiating power supply status reporting.

[0115] c) Reporting of information related to power supply status can be performed non-periodically. Figure 7 This is a diagram illustrating an example (2) of wireless power supply according to an embodiment of the present invention. Figure 7 As shown, UE-X can instruct the report and the resources used for the report, and UE-Y can report information related to power supply status aperiodically within those resources. Alternatively, UE-X can instruct the report, and UE-Y can autonomously select resources to perform the power supply status report. Figure 7 As shown, UE-Y can report information related to the power supply status to UE-X each time it performs power supply triggered by power supply. In addition, UE-Y can also report information related to the power supply status to UE-X at a time determined by UE-Y itself based on specific conditions.

[0116] d) Reporting timing and / or resources can be specified in notifications related to power supply implementation, and report validation can also be performed. For example, Figure 6 or Figure 7 The power supply trigger shown can be a notification related to the power supply implementation. Based on this notification related to the power supply implementation, UE-Y can initiate or execute a report related to the power supply status.

[0117] e) UE-Y can assume that the time between the indication of a report, the validity of a report, or the end time of a measurement object (e.g., the end time of power supply) and the execution of the report is greater than a predetermined value. This predetermined value can be specified or determined, for example, based on the UE processing time.

[0118] f) Reporting can be performed only when the power supply conditions meet predetermined requirements. Alternatively, reporting can be performed only when the power supply conditions do not meet predetermined requirements.

[0119] The timing and / or resources for sending reports related to power supply status can be determined autonomously by the UE-Y. The timing for sending reports related to power supply status can also be limited to a time when power is not received and / or a time when future power supply is not determined.

[0120] The sending and receiving of reports related to power supply status can be performed through any one of the control channel (PSCCH), data channel (PSSCH), discovery channel (PSDCH), and reporting channel (PSFCH (Physical Sidelink Feedback Channel)).

[0121] When power status reports are included in the SL-SCH (Sidelink Shared Channel) and transmitted, they can be sent via MAC-CE, MAC sub-header, or MAC-SDU (Service data unit). The priority order of power status reports with data from the SL-CCCH (Common Control Channel), data from any logical channel other than the SL-CCCH, or MAC-CE can be arbitrary. For example, power status reports may have a lower priority than data from any logical channel other than the SL-CCCH.

[0122] You can also define the priority of reports and UL signals related to power supply status. This priority can be higher or lower than that of wireless power supply in the Uu. It can also be higher or lower than that of control information in the Uu. Finally, it can be higher or lower than that of data signals in the Uu.

[0123] The above is an explanation of action 5). Through action 5), terminal 20 can report information related to the result of power supply implementation, and base station 10 can appropriately control subsequent power supply actions. In addition, the timing of the power supply status report is understood jointly by UE-X and UE-Y.

[0124] The following is an explanation of action 6).

[0125] In cases where power supply and communication cannot be performed simultaneously, UE-X and / or UE-Y may prioritize either one. Furthermore, overlap can refer to overlap in the time domain or overlap in the frequency domain.

[0126] UE-X can operate in a way that avoids overlap between power supply and communication during resource allocation. UE-X can choose not to select resources that overlap with communication resources when selecting power supply resources. UE-X can choose not to select resources that overlap with power supply resources when selecting communication resources. UE-X can choose not to select resources that overlap with communication resources when selecting power supply resources, and vice versa. UE-X can perform either the action of not selecting resources that overlap with communication resources when selecting power supply resources or the action of not selecting resources that overlap with power supply resources when selecting communication resources, for example, the decision can be based on the priority of power supply and communication. Furthermore, UE-X can also operate in a way that avoids this overlap in UE-X, and UE-X can also operate in a way that avoids this overlap in UE-Y. For example, UE-Y may notify UE-X of its UE capabilities related to the overlap in advance, and UE-X may perform resource selection in a way that avoids this overlap in UE-Y based on UE-Y's capabilities.

[0127] UE-X can perform power supply and / or communication operations in a non-overlapping manner. UE-X can discard either power supply or communication and perform the other, for example, by determining which to perform based on the priority of power supply and communication. The priority order of power supply and communication can be predefined, or given through settings, pre-setting, or PC5-RRC settings, or it can be determined autonomously by UE-X.

[0128] The priority order of power supply can also be specified for each type of communication. For example, the priority of power supply can be lower than S-SSB, PSCCH, PSFCH (HARQ-ACK), or PSSCH. Additionally, the priority of SL positioning RS can be lower than that of power supply. Multiple priorities can be defined or set for power supply, and the priority order of communication can be specified for each priority. For example, power supply during a specific time interval can be of high priority (HP), and power supply outside that specific time interval can be of low priority (LP). Furthermore, HP power supply can also have a lower priority than HP communication. LP power supply can also have a lower priority than HP power supply.

[0129] Figure 8 This is a diagram illustrating an example (3) of wireless power supply according to an embodiment of the present invention. Figure 8As shown, power supply can be withheld only in areas where power supply and communication overlap. Furthermore, even if power supply and communication only partially overlap, power supply to a predetermined unit (e.g., the entire network) can be withheld. Withholding power supply can mean discarding it, canceling it, or postponing it.

[0130] If UE-X is not providing power to a resource that has been notified to UE-Y as a power source, UE-X may notify UE-Y of the absence of power supply in that resource at a time interval before or after that resource.

[0131] To ensure non-overlapping resource allocation operations, UE-Y can include resources overlapping with power supply in the non-preferred resource allocation within the preferred resource or non-preferred resource notification during inter-UE coordination. Additionally, UE-Y can notify UE-X or the other communication partner of a conflict notification during inter-UE coordination if overlap between communication and power supply is detected.

[0132] UE-Y can operate in a non-overlapping manner when performing power supply and / or communication. UE-Y can discard either power supply or communication and perform the other, for example, by determining which to perform based on the priority of power supply and communication. The priority order of power supply and communication can be predefined, or given through settings, pre-setting, or PC5-RRC settings, or it can be determined autonomously by UE-Y.

[0133] The priority order of power supply can also be specified for each type of communication. For example, the priority of power supply can be lower than S-SSB, PSCCH, PSFCH (HARQ-ACK), or PSSCH. Additionally, the priority of SL positioning RS can be lower than that of power supply. Multiple priorities can be defined or set for power supply, and the priority order of communication can be specified for each priority. For example, power supply during a specific time interval can be of high priority (HP), and power supply outside that specific time interval can be of low priority (LP). Furthermore, HP power supply can also have a lower priority than HP communication. LP power supply can also have a lower priority than HP power supply.

[0134] The above is an explanation of action 6). Through action 6), power supply and communication can operate in a way that avoids overlap, and the action can be determined in the event of overlap.

[0135] The following is an explanation of action 7).

[0136] Figure 9 This is a diagram illustrating an example (4) of wireless power supply according to an embodiment of the present invention. Figure 9 As shown, in the function of suppressing power consumption (hereinafter referred to as "function F"), during the time interval when signal reception and / or transmission is not performed (hereinafter referred to as "time interval X"), actions related to wireless power supply can be performed.

[0137] Function F can be Figure 9 Such an SL-DRX can be based on partial monitoring or on random selection of transmissions.

[0138] UE-X and / or UE-Y can perform power supply operations during the time interval X when signal reception is not performed in the power consumption function F. Furthermore, "signal reception" can be replaced with "signal reception and / or transmission" below. Additionally, signal reception may or may not include monitoring. The UE can also be replaced with UE-X and / or UE-Y below.

[0139] The UE may not perform power supply actions during the signal reception time interval Y.

[0140] The UE can perform power supply actions throughout the entire time period X, or only for a portion of the time. Outside of a portion of the time period X, power supply actions may not be performed based on the UE's processing time. Alternatively, power supply actions can be limited to a specific time period for which power supply-related actions have been set or notified.

[0141] When function F is DRX, based on the DRX function, power supply related actions can be performed during the time interval X when SL signals (such as PDCCH or PDSCH) are not received, and power supply related actions can not be performed during DRX-ON or during the time interval Y when SL signals are received based on the DRX function.

[0142] The aforementioned action of the UE performing power supply during the time interval X when no signal is received in the power suppression function F can be limited to situations where the UE cannot perform communication and power supply at the same time, or it can be determined whether to apply it based on notification from the base station 10 or (pre-)setting.

[0143] Alternatively, it can be envisioned that the power supply operation is performed only when the power consumption suppression function F is set. If function F is not set, wireless power supply may not be performed.

[0144] In addition, a UE capable of performing power supply actions is also necessarily capable of performing the power consumption suppression function F. A UE capable of performing power supply actions must also report to the network or other UEs that it is capable of performing the power consumption suppression function F.

[0145] If UE-X is not providing power to a resource that has been notified to UE-Y as a power supply resource, UE-X may notify UE-Y of the non-power supply in that resource at a timed interval before or after that resource. Furthermore, power supply can also refer to transmitting and / or receiving power.

[0146] The above is an explanation of action 7). Through action 7), power can be efficiently supplied between UEs while suppressing communication-related power consumption. The UE can increase its remaining battery level during the power-suppressing period. Power supply actions can be optimized for non-reception times determined by various functions, thus avoiding communication quality degradation.

[0147] Through the above embodiments, in a wireless communication system, the terminal is able to perform wireless power supply.

[0148] (Device structure)

[0149] Next, an example of the functional structure of the base station 10 and terminal 20 performing the processes and operations described above will be explained. The base station 10 and terminal 20 include the functions implemented in the above embodiments. However, the base station 10 and terminal 20 may each possess only a portion of the functions described in the embodiments.

[0150] <Base Station 10>

[0151] Figure 10 This is a diagram illustrating an example of the functional structure of base station 10 in an embodiment of the present invention. For example... Figure 10 As shown, the base station 10 includes a transmitting unit 110, a receiving unit 120, a setting unit 130, and a control unit 140. Figure 10 The functional structure shown is only one example. The functional distinctions and names of the functional units can be arbitrary, as long as the actions involved in the embodiments of the present invention can be performed. Furthermore, the power transmission equipment 30 may also have the same functional structure as the base station 10.

[0152] The transmitting unit 110 includes the function of generating a signal to be transmitted to the terminal 20 and wirelessly transmitting the signal. Additionally, the transmitting unit 110 transmits inter-network node messages to other network nodes. The receiving unit 120 includes the function of receiving various signals transmitted from the terminal 20 and obtaining, for example, higher-level information from the received signals. Furthermore, the transmitting unit 110 has the function of transmitting NR-PSS, NR-SSS, NR-PBCH, DL / UL control signals, etc., to the terminal 20. Additionally, the receiving unit 120 receives inter-network node messages from other network nodes.

[0153] The setting unit 130 stores preset setting information and various setting information sent to the terminal 20. The content of the setting information includes, for example, information related to wireless power supply.

[0154] The control unit 140 performs control to implement the functions described in the embodiment. Additionally, as described in the embodiment, the control unit 140 performs control related to wireless power supply. Alternatively, the signal transmission-related functions of the control unit 140 may be included in the transmitting unit 110, and the signal reception-related functions of the control unit 140 may be included in the receiving unit 120.

[0155] Terminal 20

[0156] Figure 11 This is a diagram illustrating an example of the functional structure of terminal 20 in an embodiment of the present invention. For example... Figure 11 As shown, the terminal 20 includes a transmitting unit 210, a receiving unit 220, a setting unit 230, and a control unit 240. Figure 11 The functional structure shown is only one example. As long as the actions involved in the embodiments of the present invention can be performed, the functional distinctions and names of the functional parts can be arbitrary.

[0157] The transmitting unit 210 generates a transmission signal based on the transmission data and transmits the transmission signal wirelessly. The receiving unit 220 wirelessly receives various signals and obtains higher-layer signals from the received physical layer signals. Furthermore, the receiving unit 220 has the function of receiving NR-PSS, NR-SSS, NR-PBCH, DL / UL / SL control signals, etc., transmitted from the base station 10. Additionally, for example, as D2D communication, the transmitting unit 210 transmits PSCCH (Physical Sidelink Control Channel), PSSCH (Physical Sidelink Shared Channel), PSDCH (Physical Sidelink Discovery Channel), PSBCH (Physical Sidelink Broadcast Channel), etc., to other terminals 20, and the receiving unit 220 receives PSCCH, PSSCH, PSDCH, or PSBCH from other terminals 20.

[0158] The setting unit 230 stores various setting information received from the base station 10 by the receiving unit 220. In addition, the setting unit 230 also stores preset setting information. The content of the setting information includes, for example, information related to wireless power supply.

[0159] The control unit 240 performs control to implement the functions described in the embodiment. Additionally, as described in the embodiment, the control unit 240 performs control related to wireless power supply. Alternatively, the signal transmission-related functions of the control unit 240 may be included in the transmitting unit 210, and the signal reception-related functions of the control unit 240 may be included in the receiving unit 220.

[0160] (Hardware structure)

[0161] The block diagram used in the description of the above embodiments ( Figure 10 and Figure 11 The diagram illustrates blocks organized by function. These functional blocks (structural units) are implemented through any combination of at least one of hardware and software. Furthermore, there are no particular limitations on the implementation method of each functional block. That is, each functional block can be implemented using a single device that is physically or logically combined, or by directly or indirectly (e.g., using wired, wireless, etc.) connecting two or more physically or logically separate devices. Functional blocks can also be implemented by combining software within one or more of the aforementioned devices.

[0162] The functions include judgment, decision, determination, calculation, calculation, processing, derivation, investigation, search, confirmation, receiving, sending, output, access, resolution, selection, selection, establishment, comparison, assumption, expectation, consideration, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, and assigning, but are not limited to these. For example, the functional block (structural part) that performs the sending function is called the transmitting unit or transmitter. In short, as mentioned above, there are no particular limitations on the implementation method.

[0163] For example, in one embodiment of this disclosure, the base station 10, terminal 20, etc., can also function as a computer for processing the wireless communication method of this disclosure. Figure 12 This diagram illustrates an example of the hardware structure of a base station 10 and a terminal 20 according to one embodiment of this disclosure. The base station 10 and terminal 20 can 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, and a bus 1007, etc. Furthermore, the power transmission equipment 30 may also have the same hardware structure as the base station 10.

[0164] Furthermore, in the following description, the term "device" can be replaced with "circuit," "device," "unit," etc. The hardware structure of base station 10 and terminal 20 can be configured to include one or more of the devices shown in the figures, or it can be configured to not include any of them.

[0165] The functions of base station 10 and terminal 20 are implemented by reading predetermined software (program) into hardware such as processor 1001 and storage device 1002, so that processor 1001 performs calculations and controls the communication of communication device 1004 or controls at least one of reading and writing data in storage device 1002 and auxiliary storage device 1003.

[0166] The processor 1001 controls the computer as a whole by instructing the operating system to operate. The processor 1001 may also be a central processing unit (CPU) that includes interfaces with peripheral devices, control units, arithmetic units, registers, etc. For example, the control unit 140 and control unit 240 described above can also be implemented using the processor 1001.

[0167] Additionally, the processor 1001 reads programs (program code), software modules, or data from at least one of the auxiliary storage devices 1003 and communication devices 1004, and performs various processes accordingly. As a program, a program is used that causes the computer to perform at least a portion of the actions described in the above embodiments. For example, Figure 10 The control unit 140 of the base station 10 shown can also be implemented by a control program stored in the storage device 1002 and operated in the processor 1001. Alternatively, for example, Figure 11 The control unit 240 of the terminal 20 shown can also be implemented by a control program stored in the storage device 1002 and operated in the processor 1001. Although it has been described that the various processes described above are executed by one processor 1001, the various processes described above can also be executed 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 sent from the network via a telecommunications line.

[0168] Storage device 1002 is a computer-readable recording medium, and may be composed of at least one of ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electrically Erasable Programmable ROM), RAM (Random Access Memory), etc. Storage device 1002 may also be referred to as a register, cache, main memory (main storage device), etc. Storage device 1002 can store programs (program code), software modules, etc., that are executable for implementing the communication method according to one embodiment of this disclosure.

[0169] The auxiliary storage device 1003 is a computer-readable recording medium, such as at least one of the following: CD-ROM (CompactDisc ROM) or other optical discs, hard disks, floppy disks, magneto-optical discs (e.g., compact discs, digital multifunction discs, Blu-ray discs, smart cards, flash memory (e.g., cards, sticks, key drives), floppy disks, magnetic stripes, etc. The aforementioned storage medium may, for example, be a database, server, or other suitable media that includes at least one of the storage device 1002 and the auxiliary storage device 1003.

[0170] Communication device 1004 is hardware (transceiver) used for communication between computers via at least one of a wired network and a wireless network. It is also referred to as a network device, network controller, network interface card (NIC), communication module, etc. Communication device 1004 may, for example, be configured to include high-frequency switches, duplexers, filters, frequency synthesizers, etc., to implement at least one of frequency division duplex (FDD) and time division duplex (TDD). For example, transceiver antennas, amplifier sections, transceiver units, transmission path interfaces, etc., can also be implemented using communication device 1004. The transceiver unit may also be physically or logically separated into a transmitting unit and a receiving unit.

[0171] Input device 1005 is an input device that accepts input from external sources (e.g., keyboard, mouse, microphone, switch, button, sensor, etc.). Output device 1006 is an output device that performs output to external sources (e.g., display, speaker, LED, etc.). Furthermore, input device 1005 and output device 1006 can also be integrated (e.g., a touch panel).

[0172] Furthermore, the processor 1001 and storage device 1002, among other devices, are connected via a bus 1007 for communicating information. The bus 1007 can be configured as a single bus or as different buses used between devices.

[0173] Furthermore, the base station 10 and the terminal 20 can 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 a FPGA (Field Programmable Gate Array), and can also use this hardware to implement part or all of the functional blocks. For example, the processor 1001 can also be implemented using at least one of these hardware components.

[0174] Additionally, the power transmission equipment 30 may also have hardware that constitutes a power transmission section for wirelessly supplying power to the terminal 20. Furthermore, the terminal 20 may also have hardware that constitutes a power receiving section for receiving wireless power from the power transmission equipment 30. Additionally, the terminal 20 may also have hardware that constitutes a power transmission section for wirelessly supplying power to the terminal 20.

[0175] Figure 13 An example of the structure of vehicle 2001 is shown. For example... Figure 13 As shown, the vehicle 2001 includes a drive unit 2002, a steering unit 2003, an accelerator pedal 2004, a brake pedal 2005, a gearshift lever 2006, front wheels 2007, rear wheels 2008, an axle 2009, an electronic control unit 2010, various sensors 2021-2029, an information service unit 2012, and a communication module 2013. The various forms / implementations described in this disclosure can also be applied to communication devices mounted on the vehicle 2001, for example, to the communication module 2013.

[0176] The drive unit 2002 may be composed, for example, an engine, a motor, or a hybrid power system of an engine and a motor. The steering unit 2003 includes at least a steering wheel (also called a steering wheel) and is configured to steer at least one of the front wheels and the rear wheels based on the operation of the steering wheel operated by the user.

[0177] The electronic control unit 2010 consists of a microprocessor 2031, a memory (ROM, RAM) 2032, and a communication port (I / O port) 2033. Signals from various sensors 2021 to 2029 of the vehicle 2001 are input to the electronic control unit 2010. The electronic control unit 2010 can also be referred to as an ECU (Electronic Control Unit).

[0178] The signals from various sensors 2021 to 2029 include current signals from current sensor 2021 that senses the current of the motor, speed signals of the front or rear wheels obtained by speed sensor 2022, air pressure signals of the front or rear wheels obtained by air pressure sensor 2023, vehicle speed signals obtained by vehicle speed sensor 2024, acceleration signals obtained by acceleration sensor 2025, accelerator pedal depress signal obtained by accelerator pedal sensor 2029, brake pedal depress signal obtained by brake pedal sensor 2026, gear lever operation signals obtained by gear lever sensor 2027, and detection signals obtained by object detection sensor 2028 for detecting obstacles, vehicles, pedestrians, etc.

[0179] The Information Service Unit 2012 comprises various devices such as a car navigation system, audio system, speakers, television, and radio, used to provide (output) various information such as driving information, traffic information, and entertainment information, and one or more ECUs that control these devices. The Information Service Unit 2012 uses information obtained from external devices via a communication module 2013, etc., to provide various multimedia information and multimedia services to the occupants of the vehicle 2001. The Information Service Unit 2012 may include input devices that accept input from external sources (e.g., keyboard, mouse, microphone, switch, button, sensor, touch panel, etc.) and output devices that perform output to external sources (e.g., display, speaker, LED lights, touch panel, etc.).

[0180] The Driver Assistance System 2030 comprises various devices used to prevent accidents or reduce driver workload, such as millimeter-wave radar, LiDAR (Light Detection and Ranging), cameras, positioning devices (e.g., GNSS), map information (e.g., high-definition (HD) maps, autonomous vehicle (AV) maps), gyroscope systems (e.g., IMU (Inertial Measurement Unit), INS (Inertial Navigation System)), AI (Artificial Intelligence) chips, and AI processors, as well as one or more ECUs that control these devices. Furthermore, the Driver Assistance System 2030 transmits and receives various information via the communication module 2013 to achieve driver assistance or autonomous driving functions.

[0181] The communication module 2013 can communicate with the microprocessor 2031 and the components of the vehicle 2001 via the communication port. For example, the communication module 2013 can send and receive data with the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, gear shift lever 2006, front wheel 2007, rear wheel 2008, axle 2009, microprocessor 2031 in the electronic control unit 2010, memory (ROM, RAM) 2032, and sensors 2021 to 2029 in the vehicle 2001 via the communication port 2033.

[0182] The communication module 2013, controlled by the microprocessor 2031 of the electronic control unit 2010, is a communication device capable of communicating with external devices. For example, it can transmit and receive various types of information with external devices via wireless communication. The communication module 2013 can be located inside or outside the electronic control unit 2010. External devices can be, for example, base stations, mobile stations, etc.

[0183] The communication module 2013 can wirelessly transmit to an external device at least one of the signals input to the electronic control unit 2010 from the various sensors 2021-2028, information obtained based on those signals, and information obtained via the information service unit 2012 based on input from an external source (user). The electronic control unit 2010, the various sensors 2021-2028, and the information service unit 2012 can also be referred to as input units that receive input. For example, the PUSCH transmitted by the communication module 2013 can contain information based on the aforementioned input.

[0184] The communication module 2013 receives various information (traffic information, signal information, vehicle-to-vehicle information, etc.) sent from external devices and displays it on the information service unit 2012 provided by the vehicle 2001. The information service unit 2012 can also be referred to as an output unit for outputting information (for example, outputting information to devices such as displays and speakers based on the PDSCH received by the communication module 2013 (or data / information decoded from the PDSCH). In addition, the communication module 2013 stores the various information received from external devices in a memory 2032 available to the microprocessor 2031. The microprocessor 2031 can also control the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, gear lever 2006, front wheels 2007, rear wheels 2008, axles 2009, sensors 2021 to 2029, etc. provided by the vehicle 2001 based on the information stored in the memory 2032.

[0185] (Summary of implementation methods)

[0186] As described above, according to an embodiment of the present invention, a terminal is provided, which has a communication unit that sends a discovery signal to a first terminal or receives a discovery signal from the first terminal, the communication unit receives a power request signal from the first terminal, the terminal has a control unit that autonomously determines a first resource for power supply, the communication unit notifies the first terminal of information representing the first resource, and the terminal has a power transmission unit that supplies power to the first terminal from the first resource.

[0187] Based on the above structure, in a wireless communication system, the terminal can perform wireless power supply.

[0188] Upon receiving a discovery signal from the first terminal, the communication unit can send a notification to the first terminal indicating that power supply is possible. According to this structure, in a wireless communication system, the terminal can perform wireless power supply.

[0189] The communication unit can receive capabilities related to wireless power supply from the first terminal. According to this structure, in a wireless communication system, the terminal can efficiently perform wireless power supply.

[0190] Alternatively, the control unit receives a notification from the second terminal regarding the resources used for power supply, and determines the first resource based on the notification in a manner that does not overlap with the resources used by the second terminal in power supply. According to this structure, in a wireless communication system, the terminal can efficiently perform wireless power supply.

[0191] Alternatively, the control unit establishes an RRC (Radio Resource Control) connection with the first terminal, and the communication unit uses the RRC connection to notify the first terminal of information representing the first resource. According to this structure, in a wireless communication system, the terminal can perform wireless power supply.

[0192] In addition, according to an embodiment of the present invention, a power supply method is provided, wherein a terminal performs the following steps: sending a discovery signal to a first terminal or receiving a discovery signal from the first terminal; receiving a signal requesting power supply from the first terminal; autonomously determining a first resource for power supply; notifying the first terminal of information representing the first resource; and supplying power to the first terminal in the first resource.

[0193] Based on the above structure, in a wireless communication system, the terminal can perform wireless power supply.

[0194] (Supplement to the implementation method)

[0195] The embodiments of the present invention have been described above, but the disclosed invention is not limited to such embodiments. Those skilled in the art should understand various modifications, alterations, substitutions, and replacements. Specific numerical examples have been used to facilitate understanding of the invention, but unless otherwise specified, these values ​​are merely examples, and any appropriate values ​​can be used. The distinctions between items in the above description are not essential to the present invention; items described in two or more items can be combined as needed, and items described in one item can be applied to items described in another item (as long as there is no contradiction). The boundaries of functional units or processing units in the functional block diagram do not necessarily correspond to the boundaries of physical components. Multiple functional units can be operated by a single physical component, or a single functional unit can be operated by multiple physical components. Regarding the processing described in the embodiments, the order of processing can be interchanged unless there is a contradiction. For ease of explanation, a functional block diagram is used to illustrate the base station 10 and terminal 20, but such a device can also be implemented by hardware, software, or a combination thereof. The software operating according to the embodiments of the present invention via the processor of the base station 10 and the software operating according to the embodiments of the present invention via the processor of the terminal 20 may also be stored in random access memory (RAM), flash memory, read-only memory (ROM), EPROM, EEPROM, register, hard disk (HDD), removable disk, CD-ROM, database, server and other suitable storage media, respectively.

[0196] Furthermore, the notification of information is not limited to the forms / implementations described in this disclosure, and other methods may also be used. For example, information notification may be implemented through 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 combinations thereof. Additionally, RRC signaling may be referred to as an RRC message, for example, it may also be an RRC Connection Setup message, an RRC Connection Reconfiguration message, etc.

[0197] The various forms / implementations described in this disclosure can also be applied to 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, for example, an integer or a decimal)), 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 The system may include at least one of 802.20, UWB (Ultra-Wideband), Bluetooth (registered trademark), other suitable systems, and next-generation systems based on these systems that have been extended, modified, created, or specified. Additionally, multiple systems may be combined (e.g., a combination of at least one of LTE and LTE-A with 5G, etc.).

[0198] The processing procedures, timing, and flow of the various forms / implementations described in this specification may be rearranged in order, provided there is no contradiction. For example, the elements of various steps are indicated using an illustrative order for the methods described in this disclosure, but are not limited to the specific order indicated.

[0199] In this specification, certain actions performed by base station 10 may sometimes also be performed by its upper node, depending on the circumstances. In a network consisting of one or more network nodes having base station 10, it is obvious that various actions performed to communicate with terminal 20 can be performed by at least one of base station 10 and other network nodes besides base station 10 (e.g., considering MME or S-GW, but not limited to these). The above example illustrates the case where there is one other network node besides base station 10, but other network nodes can also be a combination of multiple other network nodes (e.g., MME and S-GW).

[0200] The information or signals described in this disclosure can be output from a higher (or lower) layer to a lower (or higher) layer. Input and output can also be performed via multiple network nodes.

[0201] Input or output information can be stored in a specific location (e.g., memory) or managed using a management table. Input or output information can be overwritten, updated, or appended. Output information can also be deleted. Input information can also be sent to other devices.

[0202] The determination in this disclosure can be made by a value represented by 1 bit (0 or 1), by a Boolean value (Boolean: true or false), or by a comparison of numerical values ​​(e.g., a comparison with a predetermined value).

[0203] Software, whether called software, firmware, middleware, microcode, hardware description language, or by other names, should be broadly interpreted as referring to commands, command sets, code, code segments, program code, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, functions, etc.

[0204] In addition, software, commands, information, etc., can be sent and received via a transmission medium. For example, when software is sent from a webpage, server, or other remote source using at least one of wired technologies (coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) etc.) and wireless technologies (infrared, microwave, etc.), at least one of these wired and wireless technologies is included within the definition of a transmission medium.

[0205] The information, signals, etc., described in this disclosure can also be represented using any of a variety of different technologies. For example, the data, commands, instructions, information, signals, bits, symbols, chips, etc., that may be involved in the above description as a whole can be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any combination of these.

[0206] Furthermore, the terms used in this disclosure and those necessary for understanding this disclosure may be replaced with terms that have the same or similar meanings. For example, at least one of the channel and symbol may also be a signal (signaling). Additionally, a signal may also be a message. Furthermore, a component carrier (CC) may also be referred to as carrier frequency, cell, frequency carrier, etc.

[0207] The terms “system” and “network” as used in this disclosure are used interchangeably.

[0208] Furthermore, the information, parameters, etc., described in this disclosure can be represented using absolute values, relative values ​​to predetermined values, or other corresponding information. For example, wireless resources can be indicated using indexes.

[0209] The names used for the above parameters are non-limiting in any respect. Furthermore, the formulas, etc., using these parameters sometimes differ from those explicitly disclosed in this disclosure. Various channels (e.g., PUCCH, PDCCH, etc.) and information elements can be identified by all appropriate names, therefore the various names assigned to these channels and information elements are non-limiting in any respect.

[0210] In this 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," and "component carrier" are used interchangeably. Sometimes, terms such as macro cell, small cell, femtocell, and picocell are also used to refer to base stations.

[0211] A base station can accommodate one or more (e.g., three) cells. When a base station accommodates multiple cells, its coverage area can be divided into several smaller areas, each of which can provide communication services through a base station subsystem (e.g., a small indoor cell tower (RRH: Remote Radio Head)). Terms such as "cell" or "sector" refer to a portion or all of the coverage area of ​​at least one of the base station and base station subsystem providing communication services within that coverage area.

[0212] In this disclosure, the base station sending information to the terminal can also be replaced by the base station instructing the terminal on information-based control actions.

[0213] In this disclosure, the terms "Mobile Station (MS)," "user terminal," "User Equipment (UE)," and "terminal" are used interchangeably.

[0214] For mobile stations, those skilled in the art sometimes also use the following terms: 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, handheld device, user agent, mobile client, client, or some other appropriate terms.

[0215] At least one of the base station and mobile station can also be referred to as a transmitting device, receiving device, communication device, etc. Furthermore, at least one of the base station and mobile station can also be a device mounted on a mobile body, the mobile body itself, etc. The mobile body refers to an object capable of movement, with arbitrary speed. It also includes situations where the mobile body is stationary. Examples of mobile bodies include, but are not limited to, vehicles, transport vehicles, automobiles, motorcycles, bicycles, connected cars, excavators, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, rear cars, rickshaws, ships (ships and other watercraft), airplanes, rockets, artificial satellites, Drone (registered trademark), multi-rotor helicopters, quadcopter helicopters, balloons, and objects mounted on them. Additionally, the mobile body can also be a mobile body that moves autonomously based on operating commands. It can be a means of transportation (e.g., car, airplane), a mobile body moving in an unmanned manner (e.g., drone, autonomous vehicle), or a robot (humanized or unmanned). Furthermore, at least one of the base station and mobile station also includes devices that do not necessarily move during communication operations. 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.

[0216] Furthermore, the base station in this disclosure can also be replaced by a user terminal. For example, the communication between the base station and the user terminal can be replaced by communication between multiple terminals 20 (e.g., D2D (Device-to-Device), V2X (Vehicle-to-Everything), etc.), and various forms / implementations of this disclosure can also be applied. In this case, the terminal 20 can also be configured to have the functions of the base station 10 described above. In addition, terms such as "uplink" and "downlink" can be replaced with terms corresponding to inter-terminal communication (e.g., "side"). For example, uplink channel, downlink channel, etc., can also be replaced with side channel.

[0217] Similarly, the user terminal in this disclosure can be replaced by a base station. In this case, the base station can also be configured to have the functions of the aforementioned user terminal.

[0218] As used in this disclosure, terms such as "determining" and "determining" sometimes encompass a variety of actions. For example, "determining" or "determining" may include actions such as judging, calculating, computing, processing, deriving, investigating, searching (e.g., searching in a table, database, or other data structure), and ascertaining, which are considered as actions of "determining" or "determining." Furthermore, "determining" or "determining" may include actions such as receiving (e.g., receiving information), transmitting (e.g., sending information), inputting, outputting, and accessing (e.g., accessing data in storage), which are considered as actions of "determining" or "determining." Additionally, "determining" or "determining" may include actions such as resolving, selecting, choosing, establishing, and comparing, which are considered as actions of "determining" or "determining." That is, "judgment" and "decision" can include matters that are considered as having been "judged" or "decided". In addition, "judgment (decision)" can also be replaced by "assuming", "expecting", "considering", etc.

[0219] The terms “connected,” “coupled,” or any variations thereof are intended to indicate any direct or indirect connection or combination between two or more elements, including cases where there is one or more intermediate elements between the two elements that are “connected” or “coupled.” The combination or connection between elements can be physical, logical, or a combination of these. For example, “access” can be used instead of “connected.” In the context of this disclosure, it can be understood that two elements are “connected” or “coupled” to each other using at least one of one or more wires, cables, and printed electrical connections, and, as some non-limiting and non-inclusive examples, using electromagnetic energy with wavelengths in the wireless frequency domain, microwave region, and light (including both visible and invisible regions) to “connect” or “couple” to each other.

[0220] The reference signal can be simply called RS (Reference Signal), or, depending on the standard applied, pilot.

[0221] As used in this disclosure, the word "based on" does not mean "based on only" unless otherwise expressly stated. In other words, the word "based on" means both "based on only" and "based on at least".

[0222] Any reference to elements using the designations "first," "second," etc., as used in this disclosure does not necessarily limit the number or order of these elements. These designations may be used in this disclosure as a convenient method of distinguishing between two or more elements. Therefore, references to the first and second elements do not imply that only two elements can be taken, or that the first element must precede the second element in any form.

[0223] Alternatively, the "unit" in the structure of the above devices can be replaced with "section", "circuit", "equipment", etc.

[0224] When the terms "include," "including," and their variations are used in this disclosure, these terms, like the term "comprising," imply inclusion. Furthermore, the term "or" as used in this disclosure does not refer to XOR.

[0225] A radio frame can consist of one or more frames in the time domain. Each frame in the time domain can be called a subframe. A subframe can also consist of one or more time slots in the time domain. A subframe can be a fixed duration (e.g., 1 ms) independent of the parameter set (numerology).

[0226] A parameter set can be communication parameters applied to at least one of the transmission and reception of a signal or channel. For example, a parameter set can represent at least one of the following: Subcarrier Spacing (SCS), bandwidth, symbol length, cyclic prefix length, Transmission Time Interval (TTI), number of symbols per TTI, radio frame structure, specific filtering processing performed by the transceiver in the frequency domain, and specific windowing processing performed by the transceiver in the time domain.

[0227] In the time domain, a time slot can be composed of one or more symbols (OFDM (Orthogonal Frequency Division Multiplexing) symbols, SC-FDMA (Single Carrier Frequency Division Multiple Access) symbols, etc.). A time slot can be a time unit based on a set of parameters.

[0228] A time slot can contain multiple mini-time slots. Each mini-time slot can consist of one or more symbols in the time domain. Additionally, a mini-time slot can also be called a sub-time slot. A mini-time slot can consist of fewer symbols than a time slot. PDSCH (or PUSCH) transmitted in time units larger than mini-time slots can be called PDSCH (or PUSCH) mapping type (type) A. PDSCH (or PUSCH) transmitted using mini-time slots can be called PDSCH (or PUSCH) mapping type (type) B.

[0229] Radio frames, subframes, time slots, mini-time slots, and symbols all represent time units for transmitting signals. Radio frames, subframes, time slots, mini-time slots, and symbols can each be referred to by other corresponding names.

[0230] For example, a subframe can be called a Transmission Time Interval (TTI), multiple consecutive subframes can also be called a TTI, and a time slot or a mini-time slot can also be called a TTI. That is to say, at least one of a subframe and a TTI can be a subframe (1ms) in existing LTE, a period shorter than 1ms (e.g., symbols 1-13), or a period longer than 1ms. Furthermore, the unit representing TTI may not be called a subframe, but rather a time slot, mini-time slot, etc.

[0231] Here, TTI refers, for example, to the smallest unit of time for scheduling in wireless communication. For instance, in an LTE system, the base station schedules the allocation of radio resources (bandwidth, transmit power, etc., available to each terminal 20) in units of TTI. However, the definition of TTI is not limited to this.

[0232] The Time Interval (TTI) can be a unit of time for transmitting channel-coded data packets (transmission blocks), code blocks, codewords, etc., or it can be a processing unit such as scheduling or link adaptation. Furthermore, when a TTI is given, the actual time interval (e.g., the number of symbols) that the transmission block, code block, codeword, etc., are mapped to can be shorter than the TTI.

[0233] Furthermore, when one time slot or one mini time slot is referred to as a TTI, more than one TTI (i.e., more than one time slot or more than one mini time slot) can become the minimum time unit for scheduling. In addition, the number of time slots (mini time slots) constituting the minimum time unit for scheduling can be controlled.

[0234] A TTI with a duration of 1ms can also be called a normal TTI (TTI in LTE Rel.8-12), a long TTI, a normal subframe, a long subframe, or a time slot. A TTI shorter than a normal TTI can also be called a shortened TTI, a short TTI, a partial or fractional TTI, a shortened subframe, a short subframe, a mini time slot, a sub-time slot, or a time slot.

[0235] Furthermore, for long TTIs (e.g., normal TTIs, subframes, etc.), they can be replaced with TTIs with a duration of more than 1ms. For short TTIs (e.g., shortened TTIs, etc.), they can be replaced with TTIs with a duration of less than long TTIs but more than 1ms.

[0236] A resource block (RB) is a unit of resource allocation in both the time and frequency domains. In the frequency domain, it can contain one or more consecutive subcarriers. The number of subcarriers contained in an RB can be the same regardless of the parameter set, for example, it can be 12. The number of subcarriers contained in an RB can also be determined based on the parameter set.

[0237] In addition, the time domain of an RB can contain one or more symbols, which can be a time slot, a mini-time slot, a subframe, or a TTI in length. A TTI, a subframe, etc., can each be composed of one or more resource blocks.

[0238] In addition, one or more RBs can also be called Physical Resource Block (PRB), Sub-Carrier Group (SCG), Resource Element Group (REG), PRB Pair, RB Pair, etc.

[0239] In addition, a resource block can consist of one or more resource elements (REs). For example, one RE can be a radio resource area consisting of one subcarrier and one symbol.

[0240] The Bandwidth Part (BWP) (also known as partial bandwidth, etc.) can also represent a subset of contiguous common resource blocks (RBs) used for a certain parameter set in a certain carrier. Here, common RBs can be determined by indexing RBs based on a common reference point of that carrier. PRBs can be defined and numbered within a BWP.

[0241] A BWP can include a UL BWP and a DL BWP. One or more BWPs can be set for a UE within a single carrier.

[0242] At least one of the configured BWPs can be active, and the UE may not intend to transmit or receive predetermined signals / channels outside of the active BWP. Furthermore, the terms "cell," "carrier," etc., used in this disclosure can be replaced with "BWP."

[0243] The structures of radio frames, subframes, time slots, mini-time slots, and symbols described above are merely illustrative. For example, the number of subframes contained in a radio frame, the number of time slots in each subframe or radio frame, the number of mini-time slots contained within a time slot, the number of symbols and RBs contained in a time slot or mini-time slot, the number of subcarriers contained in an RB, the number of symbols in a TTI, the symbol length, the cyclic prefix (CP) length, and other structures can be varied in many ways.

[0244] In this disclosure, for example, in cases where articles are added through translation, such as in English (e.g., a, an, and the), this disclosure may also include cases where the noun following these articles is in a plural form.

[0245] In this disclosure, the phrase "A and B are different" can mean "A and B are not the same." Furthermore, this phrase can also mean "A and B are each different from C." Terms such as "separate" and "combined" can also be interpreted in the same way as "different."

[0246] The various forms / implementations described in this disclosure can be used individually or in combination, and can be switched depending on the execution. Furthermore, the notification of predetermined information (e.g., a "It is X" notification) is not limited to being explicit, but can also be implicit (e.g., not notifying the predetermined information).

[0247] The present disclosure has been described in detail above, but it will be clear to those skilled in the art that the present disclosure is not limited to the embodiments described herein. The present disclosure can be implemented as modifications and variations without departing from the spirit and scope of the present disclosure as defined by the claims. Therefore, the present disclosure is for illustrative purposes only and is not intended to be limiting.

[0248] Label Explanation

[0249] 10: Base station

[0250] 110: Sending Department

[0251] 120: Receiving Department

[0252] 130: Setting Department

[0253] 140: Control Department

[0254] 20: Terminal

[0255] 210: Sending Department

[0256] 220: Receiving Department

[0257] 230: Setting Department

[0258] 240: Control Department

[0259] 30: Power transmission equipment

[0260] 1001: Processor

[0261] 1002: Storage device

[0262] 1003: Auxiliary storage device

[0263] 1004: Communication device

[0264] 1005: Input device

[0265] 1006: Output device

[0266] 2001: Vehicles

[0267] 2002: Drive Unit

[0268] 2003: Steering Unit

[0269] 2004: Accelerator Pedal

[0270] 2005: Brake Pedal

[0271] 2006: Gear Shift

[0272] 2007: Front Wheel

[0273] 2008: Rear Wheel

[0274] 2009: Axle

[0275] 2010: Electronic Control Department

[0276] 2012: Information Services Department

[0277] 2013: Communication Module

[0278] 2021: Current Sensor

[0279] 2022: Speed ​​Sensor

[0280] 2023: Barometric Pressure Sensor

[0281] 2024: Vehicle Speed ​​Sensor

[0282] 2025: Accelerometer

[0283] 2026: Brake Pedal Sensor

[0284] 2027: Gearshift Sensor

[0285] 2028: Object Detection Sensor

[0286] 2029: Accelerator Pedal Sensor

[0287] 2030: Driver Assistance Systems Department

[0288] 2031: Microprocessors

[0289] 2032: Memory (ROM, RAM)

[0290] 2033: Communication port (IO port)

Claims

1. A terminal having a communication unit that transmits a discovery signal to a first terminal or receives a discovery signal from the first terminal. The communication unit receives a power supply request signal from the first terminal. The terminal has a control unit that autonomously determines the first resource used for power supply. The communication unit notifies the first terminal of information representing the first resource. The terminal has a power transmission unit that supplies power to the first terminal from the first resource.

2. The terminal according to claim 1, wherein, When the communication unit receives a discovery signal from the first terminal, the communication unit sends a notification to the first terminal indicating that power supply can be performed.

3. The terminal according to claim 1, wherein, The communication unit receives wireless power supply capabilities from the first terminal.

4. The terminal according to claim 1, wherein, The control unit receives a notification from the second terminal regarding the resources used for power supply, and determines the first resource based on the notification in a manner that does not overlap with the resources used by the second terminal in power supply.

5. The terminal according to claim 1, wherein, The control unit establishes an RRC connection, i.e., a radio resource control connection, with the first terminal. The communication unit uses the RRC connection to notify the first terminal of information representing the first resource.

6. A power supply method, wherein, The terminal performs the following steps: Sending a discovery signal to the first terminal or receiving a discovery signal from the first terminal; Receive a power request signal from the first terminal; The primary resource for autonomously deciding which power supply to use; The first terminal is notified of information representing the first resource; as well as Power is supplied to the first terminal from the first resource.

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