Method and apparatus for transmission in wireless communication system

Abstract

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method and an apparatus in a wireless communication system are disclosed, the method including: determining, based on first information related to charging of the first device, second information related to a time of at least one mode of the first device; transmitting, to a second device, the second information; and performing at least one of a wireless transmission and a wireless reception based on the second information.

Description

METHOD AND APPARATUS FOR TRANSMISSION IN WIRELESS COMMUNICATION SYSTEM

[0001] The present invention relates to the field of wireless communication technology, and more specifically, to a method and an apparatus in a wireless communication system.

[0002] 5G mobile communication technologies define broad frequency bands such that high transmission rates and new services are possible, and can be implemented not only in "Sub 6GHz" bands such as 3.5GHz, but also in "Above 6GHz" bands referred to as mmWave including 28GHz and 39GHz. In addition, it has been considered to implement 6G mobile communication technologies (referred to as Beyond 5G systems) in terahertz bands (for example, 95GHz to 3THz bands) in order to accomplish transmission rates fifty times faster than 5G mobile communication technologies and ultra-low latencies one-tenth of 5G mobile communication technologies.

[0003] At the beginning of the development of 5G mobile communication technologies, in order to support services and to satisfy performance requirements in connection with enhanced Mobile BroadBand (eMBB), Ultra Reliable Low Latency Communications (URLLC), and massive Machine-Type Communications (mMTC), there has been ongoing standardization regarding beamforming and massive MIMO for mitigating radio-wave path loss and increasing radio-wave transmission distances in mmWave, supporting numerologies (for example, operating multiple subcarrier spacings) for efficiently utilizing mmWave resources and dynamic operation of slot formats, initial access technologies for supporting multi-beam transmission and broadbands, definition and operation of BWP (BandWidth Part), new channel coding methods such as a LDPC (Low Density Parity Check) code for large amount of data transmission and a polar code for highly reliable transmission of control information, L2 pre-processing, and network slicing for providing a dedicated network specialized to a specific service.

[0004] Currently, there are ongoing discussions regarding improvement and performance enhancement of initial 5G mobile communication technologies in view of services to be supported by 5G mobile communication technologies, and there has been physical layer standardization regarding technologies such as V2X (Vehicle-to-everything) for aiding driving determination by autonomous vehicles based on information regarding positions and states of vehicles transmitted by the vehicles and for enhancing user convenience, NR-U (New Radio Unlicensed) aimed at system operations conforming to various regulation-related requirements in unlicensed bands, NR UE Power Saving, Non-Terrestrial Network (NTN) which is UE-satellite direct communication for providing coverage in an area in which communication with terrestrial networks is unavailable, and positioning.

[0005] Moreover, there has been ongoing standardization in air interface architecture / protocol regarding technologies such as Industrial Internet of Things (IIoT) for supporting new services through interworking and convergence with other industries, IAB (Integrated Access and Backhaul) for providing a node for network service area expansion by supporting a wireless backhaul link and an access link in an integrated manner, mobility enhancement including conditional handover and DAPS (Dual Active Protocol Stack) handover, and two-step random access for simplifying random access procedures (2-step RACH for NR). There also has been ongoing standardization in system architecture / service regarding a 5G baseline architecture (for example, service based architecture or service based interface) for combining Network Functions Virtualization (NFV) and Software-Defined Networking (SDN) technologies, and Mobile Edge Computing (MEC) for receiving services based on UE positions.

[0006] As 5G mobile communication systems are commercialized, connected devices that have been exponentially increasing will be connected to communication networks, and it is accordingly expected that enhanced functions and performances of 5G mobile communication systems and integrated operations of connected devices will be necessary. To this end, new research is scheduled in connection with eXtended Reality (XR) for efficiently supporting AR (Augmented Reality), VR (Virtual Reality), MR (Mixed Reality) and the like, 5G performance improvement and complexity reduction by utilizing Artificial Intelligence (AI) and Machine Learning (ML), AI service support, metaverse service support, and drone communication.

[0007] Furthermore, such development of 5G mobile communication systems will serve as a basis for developing not only new waveforms for providing coverage in terahertz bands of 6G mobile communication technologies, multi-antenna transmission technologies such as Full Dimensional MIMO (FD-MIMO), array antennas and large-scale antennas, metamaterial-based lenses and antennas for improving coverage of terahertz band signals, high-dimensional space multiplexing technology using OAM (Orbital Angular Momentum), and RIS (Reconfigurable Intelligent Surface), but also full-duplex technology for increasing frequency efficiency of 6G mobile communication technologies and improving system networks, AI-based communication technology for implementing system optimization by utilizing satellites and AI (Artificial Intelligence) from the design stage and internalizing end-to-end AI support functions, and next-generation distributed computing technology for implementing services at levels of complexity exceeding the limit of UE operation capability by utilizing ultra-high-performance communication and computing resources.

[0008] In order to meet the increasing demand for wireless data communication services since the deployment of 4G communication systems, efforts have been made to develop improved 5G or pre-5G communication systems. Therefore, 5G or pre-5G communication systems are also called "Beyond 4G networks" or "Post-LTE systems".

[0009] In order to achieve a higher data rate, 5G communication systems are implemented in higher frequency (millimeter, mmWave) bands, e.g., 60 GHz bands. In order to reduce propagation loss of radio waves and increase a transmission distance, technologies such as beamforming, massive multiple-input multiple-output (MIMO), full-dimensional MIMO (FD-MIMO), array antenna, analog beamforming and large-scale antenna are discussed in 5G communication systems.

[0010] In addition, in 5G communication systems, developments of system network improvement are underway based on advanced small cell, cloud radio access network (RAN), ultra-dense network, device-to-device (D2D) communication, wireless backhaul, mobile network, cooperative communication, coordinated multi-points (CoMP), reception-end interference cancellation, etc.

[0011] In 5G systems, hybrid FSK and QAM modulation (FQAM) and sliding window superposition coding (SWSC) as advanced coding modulation (ACM), and filter bank multicarrier (FBMC), non-orthogonal multiple access (NOMA) and sparse code multiple access (SCMA) as advanced access technologies have been developed.

[0012] According to an embodiment of the present disclosure, there is provided a method performed by a user equipment (UE) in a wireless communication system, including: determining, based on first information related to charging of the first device, second information related to a time of at least one mode of the first device; transmitting, to a second device, the second information; and performing at least one of a wireless transmission and a wireless reception based on the second information.

[0013] In some implementations, the determining the second information related to the time of the at least one mode of the first device includes: determining the second information related to the time of the at least one mode of the first device based on information related to the at least one mode.

[0014] In some implementations, the at least one mode includes at least one of an on mode, a sleep mode, or an off mode.

[0015] In some implementations, the first information includes at least one of: information of a wireless transmission related to charging; a battery capacity of the first device or a capability related to the battery capacity of the first device; a charging efficiency of the first device or a capability related to the charging efficiency of the first device; information related to a charging signal; information on whether there is a frequency domain offset between a frequency domain position of the charging signal and the wireless transmission; an energy of the first device; an availability time of the first device; a number of available bits of the first device; a speed at which the first device is charged or a capability related to the speed at which the first device is charged; information on whether the first device supports simultaneous wireless transmission and charging or a capability related to whether the first device supports simultaneous wireless transmission and charging; information on whether the first device has been charged and supports simultaneous wireless transmission and charging; information on whether the first device is to be charged and supports simultaneous wireless transmission and charging or a capability related to power consumption of the first device; modulation of the wireless transmission; the power consumption of the first device; a capability related to whether the first device supports the at least one mode.

[0016] In some implementations, the information on the wireless transmission related to charging includes at least one of: a number of bits corresponding to at least one wireless transmission; a transmission time corresponding to at least one wireless transmission.

[0017] In some implementations, the information related to the at least one mode includes at least one of: a configuration related to the at least one mode; a configuration related to a wake up signal; a configuration related to a go to sleep signal; a first threshold for entering and / or ending the at least one mode; at least one timer corresponding to the at least one mode; at least one period of a timer corresponding to the at least one mode; at least one offset between a start position and / or an end position of the timer corresponding to the at least one mode and a reference point; at least one timer corresponding to synchronization; at least one period of a timer corresponding to synchronization; at least one offset between a start position and / or an end position of the timer corresponding to synchronization and a reference point.

[0018] In some implementations, the method further includes determining the energy of the first device based on at least one of: a remaining energy determined by the first device; the battery capacity of the first device; an energy acquired by the first device through charging; the wireless transmission performed by the first device.

[0019] In some implementations, the second information includes at least one of a time length, a maximum time length, and a minimum time length of the at least one mode supported by the first device.

[0020] In some implementations, the availability time of the first device includes a time for the wireless transmission, and / or a time for the at least one mode supported by the first device, and / or a time for the first device to maintain clock timing.

[0021] In some implementations, the information related to the charging signal includes a signal strength of the charging signal, and the signal strength of the charging signal is determined by measuring the charging signal and / or a first device-to-second device signal and / or a second device-to-first device signal.

[0022] In some implementations, the availability time of the first device is determined by at least one of: the energy of the first device and the power consumption of the first device when the first device is not charged; the energy of the first device and net power consumption of the first device when the first device is charged; and a time for which the first device is configured to be available.

[0023] In some implementations, the method further includes transmitting, to the second device, the first information.

[0024] In some implementations, the first device is available in the availability time of the first device, and is unavailable or enters the sleep mode outside the availability time of the first device, and / or the first device is available when responding to a signal transmitted by the second device, otherwise the first device is unavailable or enters the sleep mode.

[0025] In some implementations, the number of available bits of the first device includes a number of bits for the wireless transmission that is determined by at least one of: a capability of the first device; a preset or configured value; the availability time of the first device and a rate of the wireless transmission.

[0026] In some implementations, the transmitting and / or receiving the wireless transmission based on the second information includes at least one of: receiving a charging signal from the second device if the first device enters the on mode or the sleep mode; receiving the charging signal from the second device and other devices if the first device enters the on mode or the sleep mode.

[0027] In some implementations, the receiving the charging signal includes: determining at least one of a start, an end, a time length, a frequency domain resource and a transmit power of a transmission of the charging signal; and receiving the charging signal based on at least one of the start, the end, the time length, the frequency domain resource and the transmit power of the transmission of the charging signal.

[0028] In some implementations, the determining the start of the transmission of the charging signal includes determining the start of the transmission of the charging signal based on a start of the on mode and / or a start of the availability time of the first device and / or a start of the sleep mode.

[0029] In some implementations, the determining the time length of the transmission of the charging signal includes determining the time length of the transmission of the charging signal based on a time length corresponding to the on mode and / or the availability time of the first device and / or a number of bits corresponding to at least one wireless transmission and / or a transmission time corresponding to at least one wireless transmission.

[0030] In some implementations, the determining the transmit power of the charging signal includes determining the transmit power of the charging signal based on at least one of: a maximum transmit power of the charging signal; a path loss of the wireless transmission; open loop power control; closed loop power control; a power control parameter; an interference between the second device and other devices.

[0031] In some implementations, the method further includes: entering the on mode in case that a first condition is satisfied, where the first condition includes at least one of: an energy of the first device being above a second threshold; information on the first device determining that a wake up signal is enabled, and / or obtaining configuration information related to the wake up signal, and / or information on receiving the wake up signal transmitted by the second device; the first device receiving indication information of the second device for a target device, and determining that the first device belongs to the target device; information on the first device determining to enter the on mode based on a timer; information on the first device being to start transmitting and / or receiving the wireless transmissions.

[0032] In some implementations, the first device determines that the wake up signal is enabled and / or receives the wake up signal transmitted by the second device in case that a third condition is satisfied, and the third condition includes at least one of: a power of the charging signal being in a first predetermined range; a time length of the sleep mode and / or the off mode and / or a time length of charging being in a second predetermined range.

[0033] In some implementations, the method further includes: ending the on mode and / or entering the sleep mode in case that a fourth condition is satisfied, where the fourth condition includes at least one of: information on the first device receiving a go to sleep signal transmitted by the second device; an energy of the first device being below a fourth threshold; not receiving second device-to-first device signaling in a first time range; determining to enter the sleep mode based on a timer; first signaling being received; the received first signaling being not transmitted to the first device or not satisfying a preset condition; information related to entering the sleep mode being indicated in received signaling; information related to a time position of a subsequent wireless transmission being indicated in the received signaling; there being a gap in a time position between the received signaling and the subsequent wireless transmission.

[0034] In some implementations, the first signaling includes at least one of: a first transmission for triggering an inventory and / or indicating an inventory-related configuration and / or scheduling information; a third transmission in response to a second transmission for triggering the inventory and / or indicating the inventory-related configuration and / or the scheduling information that is transmitted by the first device; multicast or broadcast second device-to-first device signaling; second device-to-first device signaling with a length and / or a transmission time in a third predetermined range.

[0035] In some implementations, the information related to entering the sleep mode includes at least one of: the go to sleep signal; an identity and / or a type of a device that needs to enter the sleep mode; information corresponding to a previous transmission by the device that needs to enter the sleep mode; a time point for ending the on mode and / or entering the sleep mode; a time point for ending the sleep mode and / or entering the on mode; information related to a charging signal; a time length corresponding to the sleep mode.

[0036] According to an embodiment of the present disclosure, there is provided a method performed by a second device in a wireless communication system, including: receiving, from a first device, second information related to a time of at least one mode of the first device, where the second information is determined based on first information related to charging of the first device; and performing at least one of a wireless transmission and a wireless reception based on the second information.

[0037] In some implementations, the at least one mode includes an on mode, and / or a sleep mode, and / or an off mode.

[0038] In some implementations, the first information includes at least one of: information of a wireless transmission related to charging; information related to the at least one mode; a battery capacity of the first device or a capability related to the battery capacity of the first device; a charging efficiency of the first device or a capability related to the charging efficiency of the first device; information related to a charging signal; whether there is a frequency domain offset between a frequency domain position of the charging signal and the wireless transmission; an energy of the first device; an availability time of the first device; a number of available bits of the first device; a speed at which the first device is charged or a capability related to the speed at which the first device is charged; whether the first device supports simultaneous wireless transmission and charging or a capability related to whether the first device supports simultaneous wireless transmission and charging; whether the first device has been charged and supports simultaneous wireless transmission and charging; whether the first device is to be charged and supports simultaneous wireless transmission and charging or a capability related to power consumption of the first device; modulation of the wireless transmission; the power consumption of the first device; a capability related to whether the first device supports the at least one mode.

[0039] In some implementations, the information of the wireless transmission related to charging includes at least one of: a number of bits corresponding to at least one wireless transmission; a transmission time corresponding to at least one wireless transmission.

[0040] In some implementations, the information related to the at least one mode includes at least one of: a configuration related to the at least one mode; a configuration related to a wake up signal; a configuration related to a go to sleep signal; a first threshold for entering and / or ending the at least one mode; at least one timer corresponding to the at least one mode; at least one period of a timer corresponding to the at least one mode; at least one offset between a start position and / or an end position of the timer corresponding to the at least one mode and a reference point; at least one timer corresponding to synchronization; at least one period of a timer corresponding to synchronization; at least one offset between a start position and / or an end position of the timer corresponding to synchronization and a reference point.

[0041] In some implementations, the method further includes determining the energy of the first device based on at least one of: a remaining energy determined by the first device; the battery capacity of the first device; an energy acquired by the first device through charging; the wireless transmission performed by the first device.

[0042] In some implementations, the second information includes at least one of a time length, a maximum time length, and a minimum time length of the at least one mode supported by the first device.

[0043] In some implementations, the availability time of the first device includes a time for the wireless transmission, and / or a time for the at least one mode supported by the first device, and / or a time for the first device to maintain clock timing.

[0044] In some implementations, the information related to the charging signal includes a signal strength of the charging signal, and the signal strength of the charging signal is determined by measuring the charging signal and / or a first device-to-second device signal and / or a second device-to-first device signal.

[0045] In some implementations, the availability time of the first device is determined by at least one of: the energy of the first device and the power consumption of the first device when the first device is not charged; the energy of the first device and net power consumption of the first device when the first device is charged; and a time for which the first device is configured to be available.

[0046] In some implementations, the method further includes receiving, from the first device, the first information.

[0047] In some implementations, the method further includes determining whether the first device is available, where the determining whether the first device is available includes at least one of: determining that the first device is available in the availability time of the first device, and is unavailable or enters a sleep mode outside the availability time of the first device; determining that the first device is available if the first device responded to a signal transmitted by the second device, otherwise the first device is unavailable or enters the sleep mode.

[0048] In some implementations, the number of available bits of the first device includes a number of bits for the wireless transmission that is determined by at least one of: a capability of the first device; being preset or configured; the availability time of the first device and a rate of the wireless transmission.

[0049] In some implementations, the transmitting the charging signal includes: determining at least one of a start, an end, a time length, a frequency domain resource and a transmit power of a transmission of the charging signal; and transmitting the charging signal based on at least one of the start, the end, the time length, the frequency domain resource and the transmit power of the transmission of the charging signal.

[0050] In some implementations, the determining the start of the transmission of the charging signal includes determining the start of the transmission of the charging signal based on a start of the on mode and / or a start of the availability time of the first device and / or a start of the sleep mode.

[0051] In some implementations, the determining the time length of the transmission of the charging signal includes determining the time length of the transmission of the charging signal based on a time length corresponding to an on mode and / or the availability time of the first device and / or a number of bits corresponding to at least one wireless transmission and / or a transmission time corresponding to at least one wireless transmission.

[0052] In some implementations, the determining the transmit power of the charging signal includes determining the transmit power of the charging signal based on at least one of: a maximum transmit power of the charging signal; a path loss of the wireless transmission; open loop power control; closed loop power control; a power control parameter; an interference between the second device and other devices.

[0053] In some implementations, the method further includes: assuming or indicating the first device to enter an on mode in case that a second condition is satisfied, where the second condition includes at least one of: the energy of the first device being determined to be above a third threshold; the first device being configured with information related to the wake up signal; the wake up signal being transmitted to the first device; the indication information for the target device being transmitted; when the first device enters the on mode being determined; first device-to-second device signaling transmitted by the first device being received; first device-to-second device response signaling transmitted by the first device being received.

[0054] In some implementations, the method further includes: configuring information related to the wake up signal for the first device and / or transmitting the wake up signal to the first device in case that a third condition is satisfied, where the third condition includes at least one of: a power of the charging signal being in a first predetermined range; a time length of the sleep mode and / or the off mode and / or a time length of charging being in a second predetermined range.

[0055] In some implementations, the method further includes: assuming or indicating the first device to enter a sleep mode in case that a fifth condition is satisfied, where the fifth condition includes at least one of: the first device being configured with information related to a go to sleep signal; the go to sleep signal being transmitted to the first device; confirmation signaling of the go to sleep signal transmitted by the first device being received; an energy of the first device being determined to be below a fifth threshold; when the first device enters the sleep mode being determined; a wireless transmission with a target device being ended; first device-to-second device signaling transmitted by the first device and / or first device-to-second device response signaling transmitted by the first device being not received in a second time range.

[0056] According to an embodiment of the present disclosure, there is provided an electronic device in a wireless communication system including: a transceiver; and a controller coupled with the transceiver and configured to perform the aforementioned methods.

[0057] In order to illustrate the technical schemes of the embodiments of the present disclosure more clearly, the drawings of the embodiments will be briefly introduced below. Apparently, the drawings in the following description only relate to some embodiments of the present disclosure, and do not limit the present disclosure. In the drawings:

[0058] FIG. 1 illustrates a schematic diagram of an example wireless network according to various embodiments of the present disclosure;

[0059] FIGs. 2A and FIGs. 2B illustrate example wireless transmission and reception paths according to various embodiments of the present disclosure;

[0060] FIG. 3A illustrates an example user equipment (UE) according to various embodiments of the present disclosure;

[0061] FIG. 3B illustrates an example gNB according to various embodiments of the present disclosure;

[0062] FIG. 4 illustrates a flowchart of a method performed by a first device according to various embodiments of the present disclosure;

[0063] FIG. 5 illustrates a flowchart of a method performed by a second device according to various embodiments of the present disclosure;

[0064] FIG. 6 illustrates a block diagram of an electronic device according to various embodiments of the present disclosure.

[0065] The following description with reference to the accompanying drawings is provided to assist in a comprehensive understanding of various embodiments of the present disclosure as defined by the claims and their equivalents. It includes various specific details to assist in that understanding but these are to be regarded as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the various embodiments described herein can be made without departing from the scope and spirit of the present disclosure. In addition, descriptions of well-known functions and constructions may be omitted for clarity and conciseness.

[0066] The terms and words used in the following description and claims are not limited to the bibliographical meanings, but, are merely used by the inventor to enable a clear and consistent understanding of the present disclosure. Accordingly, it should be apparent to those skilled in the art that the following description of various embodiments of the present disclosure is provided for illustration purpose only and not for the purpose of limiting the present disclosure as defined by the appended claims and their equivalents.

[0067] It is to be understood that the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a component surface" includes reference to one or more of such surfaces.

[0068] The term "include" or "may include" refers to the existence of a corresponding disclosed function, operation or component which can be used in various embodiments of the present disclosure and does not limit one or more additional functions, operations, or components. The terms such as "include" and / or "have" may be construed to denote a certain characteristic, number, step, operation, constituent element, component or a combination thereof, but may not be construed to exclude the existence of or a possibility of addition of one or more other characteristics, numbers, steps, operations, constituent elements, components or combinations thereof.

[0069] The term "or" used in various embodiments of the present disclosure includes any or all of combinations of listed words. For example, the expression "A or B" may include A, may include B, or may include both A and B.

[0070] Unless defined differently, all terms used herein, which include technical terminologies or scientific terminologies, have the same meaning as that understood by a person skilled in the art to which the present disclosure belongs. Such terms as those defined in a generally used dictionary are to be interpreted to have the meanings equal to the contextual meanings in the relevant field of art, and are not to be interpreted to have ideal or excessively formal meanings unless clearly defined in the present disclosure.

[0071] FIG. 1 illustrates an example wireless network 100 according to various embodiments of the present disclosure. The embodiment of the wireless network 100 shown in FIG. 1 is for illustration only. Other embodiments of the wireless network 100 can be used without departing from the scope of the present disclosure.

[0072] The wireless network 100 includes a gNodeB (gNB) 101, a gNB 102, and a gNB 103. gNB 101 communicates with gNB 102 and gNB 103. gNB 101 also communicates with at least one Internet Protocol (IP) network 130, such as the Internet, a private IP network, or other data networks.

[0073] Depending on a type of the network, other well-known terms such as "base station" or "access point" can be used instead of "gNodeB" or "gNB". For convenience, the terms "gNodeB" and "gNB" are used in this patent document to refer to network infrastructure components that provide wireless access for remote terminals. And, depending on the type of the network, other well-known terms such as "mobile station", "user station", "remote terminal", "wireless terminal" or "user apparatus" can be used instead of "user equipment" or "UE". For convenience, the terms "user equipment" and "UE" are used in this patent document to refer to remote wireless devices that wirelessly access the gNB, no matter whether the UE is a mobile device (such as a mobile phone or a smart phone) or a fixed device (such as a desktop computer or a vending machine).

[0074] gNB 102 provides wireless broadband access to the network 130 for a first plurality of User Equipments (UEs) within a coverage area 120 of gNB 102. The first plurality of UEs include a UE 111, which may be located in a Small Business (SB); a UE 112, which may be located in an enterprise (E); a UE 113, which may be located in a WiFi Hotspot (HS); a UE 114, which may be located in a first residence (R); a UE 115, which may be located in a second residence (R); a UE 116, which may be a mobile device (M), such as a cellular phone, a wireless laptop computer, a wireless PDA, etc. GNB 103 provides wireless broadband access to network 130 for a second plurality of UEs within a coverage area 125 of gNB 103. The second plurality of UEs include a UE 115 and a UE 116. In some embodiments, one or more of gNBs 101-103 can communicate with each other and with UEs 111-116 using 5G, Long Term Evolution (LTE), LTE-A, WiMAX or other advanced wireless communication technologies.

[0075] The dashed lines show approximate ranges of the coverage areas 120 and 125, and the ranges are shown as approximate circles merely for illustration and explanation purposes. It should be clearly understood that the coverage areas associated with the gNBs, such as the coverage areas 120 and 125, may have other shapes, including irregular shapes, depending on configurations of the gNBs and changes in the radio environment associated with natural obstacles and man-made obstacles.

[0076] As will be described in more detail below, one or more of gNB 101, gNB 102, and gNB 103 include a 2D antenna array as described in embodiments of the present disclosure. In some embodiments, one or more of gNB 101, gNB 102, and gNB 103 support codebook designs and structures for systems with 2D antenna arrays.

[0077] Although FIG. 1 illustrates an example of the wireless network 100, various changes can be made to FIG. 1. The wireless network 100 can include any number of gNBs and any number of UEs in any suitable arrangement, for example. Furthermore, gNB 101 can directly communicate with any number of UEs and provide wireless broadband access to the network 130 for those UEs. Similarly, each gNB 102-103 can directly communicate with the network 130 and provide direct wireless broadband access to the network 130 for the UEs. In addition, gNB 101, 102 and / or 103 can provide access to other or additional external networks, such as external telephone networks or other types of data networks.

[0078] FIGs. 2A and 2B illustrate example wireless transmission and reception paths according to the present disclosure. In the following description, the transmission path 200 can be described as being implemented in a gNB, such as gNB 102, and the reception path 250 can be described as being implemented in a UE, such as UE 116. However, it should be understood that the reception path 250 can be implemented in a gNB and the transmission path 200 can be implemented in a UE. In some embodiments, the reception path 250 is configured to support codebook designs and structures for systems with 2D antenna arrays as described in embodiments of the present disclosure.

[0079] The transmission path 200 includes a channel coding and modulation block 205, a Serial-to-Parallel (S-to-P) block 210, a size N Inverse Fast Fourier Transform (IFFT) block 215, a Parallel-to-Serial (P-to-S) block 220, a cyclic prefix addition block 225, and an up-converter (UC) 230. The reception path 250 includes a down-converter (DC) 255, a cyclic prefix removal block 260, a Serial-to-Parallel (S-to-P) block 265, a size N Fast Fourier Transform (FFT) block 270, a Parallel-to-Serial (P-to-S) block 275, and a channel decoding and demodulation block 280.

[0080] In the transmission path 200, the channel coding and modulation block 205 receives a set of information bits, applies coding (such as Low Density Parity Check (LDPC) coding), and modulates the input bits (such as using Quadrature Phase Shift Keying (QPSK) or Quadrature Amplitude Modulation (QAM)) to generate a sequence of frequency-domain modulated symbols. The Serial-to-Parallel (S-to-P) block 210 converts (such as demultiplexes) serial modulated symbols into parallel data to generate N parallel symbol streams, where N is a size of the IFFT / FFT used in gNB 102 and UE 116. The size N IFFT block 215 performs IFFT operations on the N parallel symbol streams to generate a time-domain output signal. The Parallel-to-Serial block 220 converts (such as multiplexes) parallel time-domain output symbols from the Size N IFFT block 215 to generate a serial time-domain signal. The cyclic prefix addition block 225 inserts a cyclic prefix into the time-domain signal. The up-converter 230 modulates (such as up-converts) the output of the cyclic prefix addition block 225 to an RF frequency for transmission via a wireless channel. The signal can also be filtered at a baseband before switching to the RF frequency.

[0081] The RF signal transmitted from gNB 102 arrives at UE 116 after passing through the wireless channel, and operations in reverse to those at gNB 102 are performed at UE 116. The down-converter 255 down-converts the received signal to a baseband frequency, and the cyclic prefix removal block 260 removes the cyclic prefix to generate a serial time-domain baseband signal. The Serial-to-Parallel block 265 converts the time-domain baseband signal into a parallel time-domain signal. The Size N FFT block 270 performs an FFT algorithm to generate N parallel frequency-domain signals. The Parallel-to-Serial block 275 converts the parallel frequency-domain signal into a sequence of modulated data symbols. The channel decoding and demodulation block 280 demodulates and decodes the modulated symbols to recover the original input data stream.

[0082] Each of gNBs 101-103 may implement a transmission path 200 similar to that for transmitting to UEs 111-116 in the downlink, and may implement a reception path 250 similar to that for receiving from UEs 111-116 in the uplink. Similarly, each of UEs 111-116 may implement a transmission path 200 for transmitting to gNBs 101-103 in the uplink, and may implement a reception path 250 for receiving from gNBs 101-103 in the downlink.

[0083] Each of the components in FIGs. 2A and 2B can be implemented using only hardware, or using a combination of hardware and software / firmware. As a specific example, at least some of the components in FIGs. 2A and 2B may be implemented in software, while other components may be implemented in configurable hardware or a combination of software and configurable hardware. For example, the FFT block 270 and IFFT block 215 may be implemented as configurable software algorithms, in which the value of the size N may be modified according to the implementation.

[0084] Furthermore, although described as using FFT and IFFT, this is only illustrative and should not be interpreted as limiting the scope of the present disclosure. Other types of transforms can be used, such as Discrete Fourier transform (DFT) and Inverse Discrete Fourier Transform (IDFT) functions. It should be understood that for DFT and IDFT functions, the value of variable N may be any integer (such as 1, 2, 3, 4, etc.), while for FFT and IFFT functions, the value of variable N may be any integer which is a power of 2 (such as 1, 2, 4, 8, 16, etc.).

[0085] Although FIGs. 2A and 2B illustrate examples of wireless transmission and reception paths, various changes may be made to FIGs. 2A and 2B. For example, various components in FIGs. 2A and 2B can be combined, further subdivided or omitted, and additional components can be added according to specific requirements. Furthermore, FIGs. 2A and 2B are intended to illustrate examples of types of transmission and reception paths that can be used in a wireless network. Any other suitable architecture can be used to support wireless communication in a wireless network.

[0086] FIG. 3A illustrates an example UE 116 according to the present disclosure. The embodiment of UE 116 shown in FIG. 3A is for illustration only, and UEs 111-115 of FIG. 1 can have the same or similar configuration. However, a UE has various configurations, and FIG. 3A does not limit the scope of the present disclosure to any specific implementation of the UE.

[0087] UE 116 includes an antenna 305, a radio frequency (RF) transceiver 310, a transmission (TX) processing circuit 315, a microphone 320, and a reception (RX) processing circuit 325. UE 116 also includes a speaker 330, a processor / controller 340, an input / output (I / O) interface 345, an input device(s) 350, a display 355, and a memory 360. The memory 360 includes an operating system (OS) 361 and one or more applications 362.

[0088] The RF transceiver 310 receives an incoming RF signal transmitted by a gNB of the wireless network 100 from the antenna 305. The RF transceiver 310 down-converts the incoming RF signal to generate an intermediate frequency (IF) or baseband signal. The IF or baseband signal is transmitted to the RX processing circuit 325, where the RX processing circuit 325 generates a processed baseband signal by filtering, decoding and / or digitizing the baseband or IF signal. The RX processing circuit 325 transmits the processed baseband signal to speaker 330 (such as for voice data) or to processor / controller 340 for further processing (such as for web browsing data).

[0089] The TX processing circuit 315 receives analog or digital voice data from microphone 320 or other outgoing baseband data (such as network data, email or interactive video game data) from processor / controller 340. The TX processing circuit 315 encodes, multiplexes, and / or digitizes the outgoing baseband data to generate a processed baseband or IF signal. The RF transceiver 310 receives the outgoing processed baseband or IF signal from the TX processing circuit 315 and up-converts the baseband or IF signal into an RF signal transmitted via the antenna 305.

[0090] The processor / controller 340 can include one or more processors or other processing devices and execute an OS 361 stored in the memory 360 in order to control the overall operation of UE 116. For example, the processor / controller 340 can control the reception of forward channel signals and the transmission of backward channel signals through the RF transceiver 310, the RX processing circuit 325 and the TX processing circuit 315 according to well-known principles. In some embodiments, the processor / controller 340 includes at least one microprocessor or microcontroller.

[0091] The processor / controller 340 is also capable of executing other processes and programs residing in the memory 360, such as operations for channel quality measurement and reporting for systems with 2D antenna arrays as described in embodiments of the present disclosure. The processor / controller 340 can move data into or out of the memory 360 as required by an execution process. In some embodiments, the processor / controller 340 is configured to execute the application 362 based on the OS 361 or in response to signals received from the gNB or the operator. The processor / controller 340 is also coupled to an I / O interface 345, where the I / O interface 345 provides UE 116 with the ability to connect to other devices such as laptop computers and handheld computers. I / O interface 345 is a communication path between these accessories and the processor / controller 340.

[0092] The processor / controller 340 is also coupled to the input device(s) 350 and the display 355. An operator of UE 116 can input data into UE 116 using the input device(s) 350. The display 355 may be a liquid crystal display or other display capable of presenting text and / or at least limited graphics (such as from a website). The memory 360 is coupled to the processor / controller 340. A part of the memory 360 can include a random access memory (RAM), while another part of the memory 360 can include a flash memory or other read-only memory (ROM).

[0093] Although FIG. 3A illustrates an example of UE 116, various changes can be made to FIG. 3A. For example, various components in FIG. 3A can be combined, further subdivided or omitted, and additional components can be added according to specific requirements. As a specific example, the processor / controller 340 can be divided into a plurality of processors, such as one or more central processing units (CPUs) and one or more graphics processing units (GPUs). Furthermore, although FIG. 3A illustrates that the UE 116 is configured as a mobile phone or a smart phone, UEs can be configured to operate as other types of mobile or fixed devices.

[0094] FIG. 3B illustrates an example gNB 102 according to the present disclosure. The embodiment of gNB 102 shown in FIG. 3B is for illustration only, and other gNBs of FIG. 1 can have the same or similar configuration. However, a gNB has various configurations, and FIG. 3B does not limit the scope of the present disclosure to any specific implementation of a gNB. It should be noted that gNB 101 and gNB 103 can include the same or similar structures as gNB 102.

[0095] As shown in FIG. 3B, gNB 102 includes a plurality of antennas 370a-370n, a plurality of RF transceivers 372a-372n, a transmission (TX) processing circuit 374, and a reception (RX) processing circuit 376. In certain embodiments, one or more of the plurality of antennas 370a-370n include a 2D antenna array. gNB 102 also includes a controller / processor 378, a memory 380, and a backhaul or network interface 382.

[0096] RF transceivers 372a-372n receive an incoming RF signal from antennas 370a-370n, such as a signal transmitted by UEs or other gNBs. RF transceivers 372a-372n down-convert the incoming RF signal to generate an IF or baseband signal. The IF or baseband signal is transmitted to the RX processing circuit 376, where the RX processing circuit 376 generates a processed baseband signal by filtering, decoding and / or digitizing the baseband or IF signal. RX processing circuit 376 transmits the processed baseband signal to controller / processor 378 for further processing.

[0097] The TX processing circuit 374 receives analog or digital data (such as voice data, network data, email or interactive video game data) from the controller / processor 378. TX processing circuit 374 encodes, multiplexes and / or digitizes outgoing baseband data to generate a processed baseband or IF signal. RF transceivers 372a-372n receive the outgoing processed baseband or IF signal from TX processing circuit 374 and up-convert the baseband or IF signal into an RF signal transmitted via antennas 370a-370n.

[0098] The controller / processor 378 can include one or more processors or other processing devices that control the overall operation of gNB 102. For example, the controller / processor 378 can control the reception of forward channel signals and the transmission of backward channel signals through the RF transceivers 372a-372n, the RX processing circuit 376 and the TX processing circuit 374 according to well-known principles. The controller / processor 378 can also support additional functions, such as higher-level wireless communication functions. For example, the controller / processor 378 can perform a Blind Interference Sensing (BIS) process such as that performed through a BIS algorithm, and decode a received signal from which an interference signal is subtracted. A controller / processor 378 may support any of a variety of other functions in gNB 102. In some embodiments, the controller / processor 378 includes at least one microprocessor or microcontroller.

[0099] The controller / processor 378 is also capable of executing programs and other processes residing in the memory 380, such as a basic OS. The controller / processor 378 can also support channel quality measurement and reporting for systems with 2D antenna arrays as described in embodiments of the present disclosure. In some embodiments, the controller / processor 378 supports communication between entities such as web RTCs. The controller / processor 378 can move data into or out of the memory 380 as required by an execution process.

[0100] The controller / processor 378 is also coupled to the backhaul or network interface 382. The backhaul or network interface 382 allows gNB 102 to communicate with other devices or systems through a backhaul connection or through a network. The backhaul or network interface 382 can support communication over any suitable wired or wireless connection(s). For example, when gNB 102 is implemented as a part of a cellular communication system, such as a cellular communication system supporting 5G or new radio access technology or NR, LTE or LTE-A, the backhaul or network interface 382 can allow gNB 102 to communicate with other gNBs through wired or wireless backhaul connections. When gNB 102 is implemented as an access point, the backhaul or network interface 382 can allow gNB 102 to communicate with a larger network, such as the Internet, through a wired or wireless local area network or through a wired or wireless connection. The backhaul or network interface 382 includes any suitable structure that supports communication through a wired or wireless connection, such as an Ethernet or an RF transceiver.

[0101] The memory 380 is coupled to the controller / processor 378. A part of the memory 380 can include an RAM, while another part of the memory 380 can include a flash memory or other ROMs. In certain embodiments, a plurality of instructions, such as the BIS algorithm, are stored in the memory. The plurality of instructions are configured to cause the controller / processor 378 to execute the BIS process and decode the received signal after subtracting at least one interference signal determined by the BIS algorithm.

[0102] As will be described in more detail below, the transmission and reception paths of gNB 102 (implemented using RF transceivers 372a-372n, TX processing circuit 374 and / or RX processing circuit 376) support aggregated communication with FDD cells and TDD cells.

[0103] Although FIG. 3B illustrates an example of gNB 102, various changes may be made to FIG. 3B. For example, gNB 102 can include any number of each component shown in FIG. 3A. As a specific example, the access point can include many backhaul or network interfaces 382, and the controller / processor 378 can support routing functions to route data between different network addresses. As another specific example, although shown as including a single instance of the TX processing circuit 374 and a single instance of the RX processing circuit 376, gNB 102 can include multiple instances of each (such as one for each RF transceiver).

[0104] In order to make the purpose, technical schemes and advantages of the present application clearer, the implementations of the present application will be further described in detail with reference to the accompanying drawings.

[0105] The text and drawings are provided as examples only to help readers understand the present disclosure. They are not intended and should not be interpreted as limiting the scope of the present disclosure in any way. Although certain embodiments and examples have been provided, based on the content disclosed herein, it is obvious to those skilled in the art that modifications to the illustrated embodiments and examples can be made without departing from the scope of the present disclosure.

[0106] The Internet of Things (IoT) technology has the characteristics of low cost, low power consumption, and support for large-scale connections. It is usually used in application scenarios such as smart factories, smart health care, and urban management that have a large number of devices and emphasize cost control, to achieve the communication effect of connecting everything. Narrowband IoT (NB-IoT) is a kind of IoT technology that has been put into commercial applications. Compared with cell communication technology, NB-IoT has the characteristics of low-rate, low-cost, wide coverage and large capacity. It can be used as an effective complement for cell communication with a medium and high rate to as the main design objective. However, the overall design of NB-IoT is still based on the framework of cell communication, and follows the basic design concepts of cell communication in terms of device structure, signal design, etc., so its cost cannot compete with simple-structured technologies such as RFID; and its power consumption is usually supported by the device's own battery, which has a limited service life in long-term communication scenarios. Therefore, there is a need to design an IoT technology that can effectively reduce maintenance costs, with lower cost, less power consumption, and can be charged by signals in the environment; this makes up for the shortcomings of NB-IoT technology.

[0107] The present specification provides a technical design related to an IoT device that may be charged based on external signals. Such IoT devices can receive downlink signals and transmit uplink signals on the basis of charging based on their own batteries or external signals. The method by which the device receives downlink signals and transmits uplink signals is different from traditional wireless communication methods. Downlink reception is mainly based on envelope detection, and uplink transmission can be based on backscattering. Backscattering technology means that the device modulates based on a carrier wave (CW) existing in the environment or transmitted from other nodes, modulates its own information on the CW transmitted from other nodes, and reflects the modulated CW, thereby completing the transmitting of uplink signals. A transmitting device that transmits signals based on backscattering may not itself generate a carrier wave carrying information, without radio frequency circuits such as amplifiers and mixers of traditional communication devices, thereby significantly reducing the cost of the device and the requirement for power or batteries. In the present application, since the transmission and charging of such IoT devices are implemented mainly depending on ambient signal, such IoT devices are called Ambient IoT (AIoT) devices. This naming is mainly for simplicity of description and is not used to limit the scope of the devices.

[0108] In the AIoT system, the transmission of signals / channels such as data and services can be directly transmitted between the base station and the AIoT node (such as tag device); it can also be transmitted via an intermediate node. For example, the base station transmits information related to the AIoT system to the intermediate node, and the intermediate node transmits data to the AIoT node; and the AIoT node transmits data to the intermediate node, and the intermediate node then transmits information related to the AIoT system to the base station.

[0109] In the present specification, for services in the AIoT system, similar principles to traditional cell communication are used, the transmission transmitted by the base station or intermediate node to the AIoT node is called downlink transmission, and the transmission transmitted by the AIoT node to the base station or intermediate node is called uplink transmission. In addition, the transmission related to the AIoT system transmitted by the base station to the intermediate node may also be called downlink transmission, and the transmission related to the AIoT system transmitted by the intermediate node to the base station may be called uplink transmission. Unless otherwise specified in the present specification, uplink / downlink transmission corresponds to the relationship between transceiving nodes, and is not used to limit whether the transmission occurs on uplink or downlink resources. For example, uplink transmission in the AIoT system may also be transmitted and received on the downlink frequency band in the FDD system, and downlink transmission in the AIoT system may also be transmitted and received on the uplink slot in the TDD system.

[0110] The base station in the present specification may also be replaced by other devices, such as communication devices, relay nodes, IAB nodes, repeater nodes, sidelink nodes as external accessories of the base station. Any mechanism applicable to the base station in the present specification can also be similarly used in the scenario where the base station is replaced by other nodes, and the description will not be repeated. The difference between the communication device of the external accessory of the base station and the base station may include: the device may transmit DL signals / channels on the UL frequency band in the FDD system and on the UL time unit in the TDD system, including transmitting DL signals / channels corresponding to communication between the base station and the UE and DL signals / channels corresponding to communication between the base station and the AIoT device.

[0111] The intermediate node in the present specification may be at least one of a relay node, an IAB node, a repeater node, a sidelink node.

[0112] In the embodiment of the present application, below a threshold can also be replaced by below or equal to the threshold, above (exceeding) the threshold can also be replaced by above or equal to the threshold, less than or equal to can also be replaced by less than, greater than or equal to can also be replaced by greater than; and vice versa.

[0113] In the embodiment of the present application, unless otherwise specified, configuration information includes at least one of information configured by the base station, indicated in the received signaling, configured by the higher layer and preconfigured. Further, it can be a set of configuration information obtained by the above methods; it can also be multiple sets of configuration information obtained by the above method, and the UE or node can select a set of configuration information to use according to predefined conditions; it can also be a set of configuration information obtained by the above method, and the set of configuration information includes multiple subsets, and the UE or node can select a subset to use according to predefined conditions.

[0114] In the present specification, AIoT devices (such as tags, etc.) are simply called devices, and base stations or intermediate nodes that communicate with AIoT devices are collectively called readers.

[0115] In the present specification, charging the AIoT device includes charging by at least one of RF energy harvesting, non-RF energy harvesting, other charging methods (such as wired power supply), etc.

[0116] The UE capabilities in the present specification, unless otherwise limited, include the UE capabilities of device-type UEs and / or the UE capabilities of reader-type UEs.

[0117] Transmission in the present specification, unless otherwise limited, includes transmitting and receiving, including Device to Reader (D2R) transmission and Reader to Device (R2D) transmission.

[0118] In the present specification, in order to simplify the description, an on mode, a sleep mode, and an off mode are used to respectively correspond to the states in which the device can perform a series of specific operations. The above modes may also be named an on state, a sleep state, and an off state. In any embodiment in the present specification, the mode and the state may be replaced with each other. The above at least one mode is mainly used as a general description to simplify the technical description related to the behavior of the device, and should not limit the scope of protection by whether the standard explicitly defines a kind of corresponding operating modes. For example, if the standard defines several UE behaviors that the device can and cannot perform, and the behaviors are consistent with the device behaviors defined in the sleep mode, but the sleep mode is not explicitly defined as a device state, then technical descriptions related to the sleep mode can still be used in the corresponding technical links defined in the standard.

[0119] The operations that the device can perform (and cannot perform) in the on mode include at least one of: the device may transmit AIoT transmissions in the mode, the device may receive AIoT transmissions in the mode, the device may detect a Wake Up Signal (WUS) in the mode, the device may be charged or may perform RF-based energy harvesting and / or perform non-RF-based energy harvesting in the mode, the device may maintain clock synchronization and / or timing in the mode, the device may detect synchronization signals and / or obtain clock synchronization in the mode, the device may store temporary information without losing the stored temporary information due to power loss in the mode.

[0120] The operations that the device can perform (and cannot perform) in the sleep mode include at least one of: the device does not transmit AIoT transmissions in the mode, the device does not receive AIoT transmissions in the mode, the device may detect a Wake Up Signal (WUS) in the mode, the device may be charged or may perform RF-based energy harvesting and / or perform non-RF-based energy harvesting in the mode, the device may maintain clock synchronization and / or timing in the mode, the device may store temporary information without losing the stored temporary information due to power loss in the mode. In a specific example, a device turns off a receiver and a transmitter in the sleep mode, does not transmit AIoT transmissions, does not receive AIoT transmissions, does not detect WUS, but can be charged by means including RF energy harvesting, and maintains clock synchronization, stores temporary information without losing stored temporary information due to power loss; in the example, the device may determine a time point for ending the sleep mode and / or entering the on mode based on clock timing. In another specific example, in the sleep mode, the device does not transmit AIoT transmissions, does not receive AIoT transmissions, can be charged by means including RF energy harvesting, and maintains clock synchronization, stores temporary information without losing the stored temporary information due to power loss, and can also detect some simple specific sequences as WUS, and end the sleep mode and / or enter the on mode after detecting the WUS signal, and / or determine the time point for ending the sleep mode and / or entering the on mode based on clock timing.

[0121] The operations that the device can perform (and cannot perform) in the off mode include at least one of: the device does not transmit AIoT transmissions in the mode, the device does not receive AIoT transmissions in the mode, the device does not detect a Wake Up Signal (WUS) in the mode, the device may be charged or may perform RF-based energy harvesting and / or perform non-RF-based energy harvesting in the mode, the device does not maintain clock synchronization and / or timing in the mode, the device does not store temporary information and may lose previously stored temporary information due to power loss in the mode.

[0122] In the following embodiments, a transmission time (including maximum / minimum transmission time) may also be replaced by a time (including maximum / minimum time) of the on mode.

[0123] FIG. 4 illustrates a flowchart of a method performed by a first device according to various embodiments of the present disclosure.

[0124] Referring to FIG. 4, at S401, second information related to a time of at least one mode of the first device is determined based on first information related to charging of the first device. At S402, the second information is transmitted to a second device. At S403, a wireless transmission is transmitted and / or received based on the second information.

[0125] Optionally, the first device may be one of a device and a reader, and the second device may be the other of the device and the reader.

[0126] FIG. 5 illustrates a flowchart of a method performed by a second device according to various embodiments of the present disclosure.

[0127] Referring to FIG. 5, at S501, second information related to a time of at least one mode of a first device is received from the first device, where the second information is determined based on first information related to charging of the first device. At S503, a wireless transmission is transmitted and / or received based on the second information.

[0128] Optionally, the information related to charging includes at least one of: information of a device related to charging, UE capabilities related to charging, information of AloT transmissions related to charging, information related to an on mode and / or a sleep mode and / or an off mode.

[0129] Optionally, configuration information of the device for transmitting and configuration information of the device for receiving described above may be used individually to determine a time of at least one mode, or combined to determine the time of at least one mode.

[0130] Optionally, the information of the device related to charging includes at least one of:

[0131] a battery capacity;

[0132] charging efficiency; the charging efficiency may correspond to a proportion that the device converts the energy of the charging signal into its own stored energy. For example, the charging signal power is -10 dBm and the device charging efficiency is 10%, which means that the charging speed of the device is -10 dBm per unit time * 10%; alternatively, the charging efficiency may correspond to a speed at which the device is charged (e.g. X dBm / second), and further may be a typical or average charging speed at a specific power or power interval of the charging signal, where multiple specific powers / power intervals may correspond to different values of the charging efficiency of the device, and further including the charging efficiency of the device when receiving the charging signal and not performing transmission / reception at the same time, and / or the charging efficiency when receiving the charging signal and performing transmission / reception at the same time;

[0133] information related to the charging signal, including information related to multiple charging signals or at least one charging signal when the multiple charging signals are received by the device. The information includes at least one of: a signal strength of the charging signal, details of which are explained in subsequent embodiments; frequency domain resource information of the charging signal, including at least one of a bandwidth, a start position, an end position; a waveform of the charging signal;

[0134] whether there is a frequency domain offset between a frequency domain position of the charging signal and the AIoT transmission; and further, when the device is charged and receives and / or transmits AIoT transmissions at the same time, whether there is a frequency domain offset between the frequency domain position of the charging signal and the AIoT transmission. Further, when there is an offset, a size of the offset (further including, a specific value of the offset, and / or whether the value of the offset falls in a predetermined threshold range), and / or the impact of the offset on charging, and / or the method of generating the frequency domain offset (for example, an offset between the carrier wave (CW) as the charging signal and the D2R signal is realized by the offset module inside the device, and the offset between the CW as the charging signal and the D2R signal is realized by linear encoding) may be determined by a ratio to a speed or effect of charging without the offset;

[0135] at least one of an energy, an availability time, a number of available bits of the device; at least one of the energy, the availability time, the number of available bits of the device may be determined by the device via an internal module, and / or reported by the device to the reader, and / or determined by the reader via reporting by the device and / or interaction of the reader with the device. Specific methods by which the device and / or reader determines at least one of the energy, the availability time, the number of available bits of the device are explained by other subsequent embodiments;

[0136] a speed at which the device is charged, e.g. the energy acquired by the device per time unit; it may be determined by the device via an internal module, and / or reported by the device to the reader, and / or determined by the reader via reporting by the device and / or interaction of the reader with the device. Specific methods by which the device and / or reader determines the charging speed are explained by other subsequent embodiments;

[0137] whether the device can receive AIoT transmissions and be charged at the same time, and / or whether the device can transmit AIoT transmissions and be charged at the same time; and further, if the device can receive AIoT transmissions and be charged at the same time and / or can transmit AIoT transmissions and be charged at the same time, the information further includes: a charging speed when the device receives AIoT transmissions and is charged at the same time and / or a charging speed when the device transmits AIoT transmissions and is charged at the same time, which may be a ratio to a charging speed when the device is charged and does not transmit / receive AIoT transmissions at the same time;

[0138] (whether) the device has been charged and can receive AIoT transmissions and be charged at the same time, and / or (whether) the device has been charged and can transmit AIoT transmissions and be charged at the same time, and / or (whether) the device is to be charged and can receive AIoT transmissions and be charged at the same time, and / or (whether) the device is to be charged and can transmit AIoT transmissions and be charged at the same time; being charged includes receiving at least one wireless signal that may be used as the charging signal;

[0139] modulation of the AIoT transmission, and further, the modulation of the D2R transmission; optionally, the method is used when CW is used as the charging signal; and / or, if the device receives AIoT transmissions and is charged at the same time and / or can transmit AIoT transmissions and receive the charging signal, the method is used. For example, a D2R transmission using OOK modulation and a D2R transmission using BPSK modulation may have a difference in charging speed due to the modulation when other conditions of the charging signal are the same. For example, the former may be 50% of the speed of the latter. Therefore, the charging speed may be determined based on the D2R modulation, thereby further determining information related to the segmentation of sub-signaling;

[0140] power consumption of the device; there may be one or more values, and multiple values may correspond to different operating states of the device, such as reception and transmission respectively, and for example, reception and / or transmission using an amplifier and not using an amplifier respectively.

[0141] Optionally, the UE capabilities related to charging include at least one of:

[0142] a UE capability corresponding to a battery capacity of the device. For example, multiple indexes of the UE capability with respect to the battery capacity of the device correspond to multiple typical values of the battery capacity of the device respectively;

[0143] a UE capability corresponding to the charging efficiency of the device;

[0144] a UE capability related to whether the device supports at least one of the sleep mode, the on mode, the off mode;

[0145] a UE capability related to whether the device can receive AIoT transmissions and be charged at the same time, and / or whether the device can transmit AIoT transmissions and be charged at the same time;

[0146] a UE capability related to the charging speed when the device receives AIoT transmissions and is charged at the same time and / or the charging speed when the device transmits AIoT transmissions and is charged at the same time;

[0147] a UE capability corresponding to the power consumption of the device.

[0148] Optionally, the device reports at least one of the above UE capabilities to the reader; and / or, the reader acquires at least one of the above UE capabilities from the device, including acquiring at least one of the above UE capabilities based on information reported by the device; and / or, when the reader does not acquire at least one of the above UE capabilities from the device, a default value of at least one of the above UE capabilities is used.

[0149] Optionally, the information of the AIoT transmission related to charging includes at least one of:

[0150] a number of bits corresponding to at least one AIoT transmission, further, including a number of bits corresponding to at least one higher layer signaling and / or physical layer signaling, including the minimum and / or maximum number of bits, specifically, including at least one signaling size (including minimum and / or maximum size) of higher layer signaling and / or at least one TBS (including minimum and / or maximum TBS, including TBS table) used by physical layer signaling;

[0151] a transmission time corresponding to at least one AIoT transmission, further, including a transmission time corresponding to at least one higher layer signaling and / or physical layer signaling, including the minimum and / or maximum transmission time; in various embodiments of the present specification, the transmission time corresponding to the AIoT transmission may also be replaced by the transmission time corresponding to the on mode.

[0152] Different types of AloT transmissions (e.g. D2R signaling like Msg1 or RN16 transmitted by the device during an inventory process that indicates information related to its own identity, R2D signaling like Query in RFID transmitted by the reader during the inventory process for triggering inventory and / or commands and indicating related information, etc.) may correspond to different number of bits and / or transmission times.

[0153] The number of bits corresponding to the physical layer signaling may be the number of information bits provided by the higher layer plus the number of bits corresponding to the payload added by the physical layer, and the physical layer payload includes at least one of: preamble, midamble, postamble, synchronization signal (if it is in the same transmission as higher layer signaling and is not calculated in the payload corresponding to the preamble), control information, signal header, channel coding (such as FEC), CRC; it may be a number of bits of the physical layer before linear encoding or the number of code chips after linear encoding.

[0154] Optionally, the information of the AIoT transmission related to charging may be configured / preconfigured, and / or preset, and / or indicated in signaling transmitted between the reader and the device, and / or determined based on other information related to charging. The configuration further includes at least one of the device and / or the reader being configured by the base station, the device being configured by the reader.

[0155] Optionally, the information of the AIoT transmission related to charging further includes information related to R2D transmission and / or D2R transmission, and the information related to R2D transmission and the information related to D2R transmission may be configured / indicated separately.

[0156] In the embodiment, a first mode includes at least one of the on mode, the sleep mode, and the off mode, and a second mode includes another at least one of the on mode, the sleep mode, and the off mode. Optionally, the information related to the on mode and / or the sleep mode and / or the off mode includes at least one of:

[0157] whether the sleep mode is enabled, and / or a configuration related to the sleep mode;

[0158] whether a Wake Up Signal (WUS) is enabled, and / or a configuration related to the WUS; the WUS may be used to indicate the UE to enter the on mode from the sleep mode or off mode;

[0159] whether a Go To Sleep Signal (GTSS) is enabled, and / or a configuration related to the GTSS; the GTSS may be used to indicate the UE to enter the on mode from the sleep mode or off mode;

[0160] an energy threshold for entering the first mode, and / or an energy threshold for ending the first mode, and / or an energy threshold for switching from the first mode to the second mode; for example, when the energy of the device exceeds the threshold, it enters the on mode, and for another example, when the energy of the device is below the threshold, it enters the sleep mode from the on mode; different mode switches may correspond to different thresholds. For example, the energy threshold for entering / ending the on mode is 80% of the battery capacity, and the energy threshold for entering / turning on the off mode is 0% of the battery capacity;

[0161] at least one timer corresponding to the first mode; optionally, when the timer is started, the device may enter the first mode, and when the timer is ended, the device may end the first mode;

[0162] at least one period of a timer corresponding to the first mode;

[0163] at least one offset between a start position and / or an end position of the timer and a reference point in a period of the timer corresponding to the first mode, where the reference point may be a start of the period;

[0164] at least one timer corresponding to synchronization, and / or at least one period of a timer corresponding to synchronization, and / or at least one offset between the start position and / or the end position of the timer and the reference point in a period of the timer corresponding to synchronization; the timer may be used to enable the device to receive synchronization signals and calibrate clock synchronization while the timer is running, and the device may not perform reception and / or transmission of AIoT transmissions during running.

[0165] Optionally, the information related to the on mode and / or the sleep mode and / or the off mode includes information related to at least one timer corresponding to the on mode and / or the sleep mode and information related to at least one timer corresponding to synchronization. The device enters the on mode in a time range in which the timer corresponding to the on mode runs, based on at least one timer corresponding to the on mode and / or the sleep mode; the device enters the sleep mode in a time range in which the timer corresponding to the on mode does not run (it may also enter the off mode if the energy is insufficient), and / or enters the sleep mode in a time range in which the timer corresponding to the sleep mode runs (it may also enter the off mode if the energy is insufficient); the device receives synchronization signals and calibrate clock synchronization in a time range in which the timer corresponding to synchronization runs.

[0166] Optionally, the at least one timer corresponding to the first mode and / or corresponding to synchronization may be configured periodically, for example, the timer is configured together with the period and offset corresponding to the timer through higher layer signaling; it can also be dynamically configured, for example, a timer that takes effect once or takes effect N times is indicated in the physical layer control signaling (which may be DCI) or the R2D channel, and the offset corresponding to the timer may also be indicated. The offset may use the start or end time point when the physical layer control signaling or the R2D channel is transmitted as a reference time point.

[0167] Optionally, the device and / or the reader determines the signal strength of the charging signal including the signal strength of the charging signal received by the device, which may be the power of the signal. The signal strength may be a signal strength over a specific frequency domain size (e.g., one PRB) and / or at least one frequency domain bandwidth; further, when the device receives multiple charging signals on multiple frequency domain bandwidths, it may be the signal strength of at least one or each charging signal.

[0168] Optionally, the signal strength of the charging signal is determined by measurements of the charging signal and / or the D2R signal and / or the R2D signal including at least one of:

[0169] being determined by the device through measurement of the charging signal;

[0170] being determined by the device through measurement of the R2D signal; optionally, the method is used at least in scenarios where the reader transmits a charging signal to the device; for example, the device measures the signal strength of the R2D signal and assumes that the signal strength of the charging signal is the same as the signal strength of the R2D signal or there is a preset offset between the signal strength of the charging signal and the signal strength of the R2D signal;

[0171] being determined by the reader through measurement of the D2R signal; optionally, the method is used at least in scenarios where the reader transmits a charging signal to the device; for example, the reader measures the signal strength of the D2R signal and assumes that the signal strength of the charging signal received by the device is the same as the signal strength of the D2R signal received by the reader or there is a preset offset between the signal strength of the charging signal received by the device and the signal strength of the D2R signal received by the reader, which may be caused by a difference in the transmit power of the reader and the device.

[0172] The signal strength may be determined by at least one of (including measurement of at least one of): a Reference Signal Received Power (RSRP), a Received Signal Strength Indicator (RSSI), a path loss, indication information on the strength or strength range of the charging signal.

[0173] Optionally, the device determines a position of a possible charging signal (including at least one of a start, an end, a time length, which may be similarly determined using methods in other embodiments of the present specification), performs at least one measurement at the position of the possible charging signal; optionally, the measured strength of the charging signal is reported to the reader.

[0174] Optionally, when the charging signal is transmitted by a network node other than the reader, the reader determines a position (including at least one of a start, an end, a time length, which may be similarly determined using methods in other embodiments of the present description) of a possible charging signal, performs at least one measurement at the position of the possible charging signal; the method may be used when the reader is close to the device, for example, when the result of the reader's measurement of the device's D2R transmission falls in a predetermined threshold range.

[0175] Optionally, the device determines the energy of the device based on at least one of:

[0176] a determined remaining energy, including being determined by the internal module;

[0177] a battery capacity; the battery includes an energy storage module such as a capacitor; for example, when the device is assumed to be fully charged, the energy of the device is the battery capacity;

[0178] the device receiving the charging signal and determining the energy acquired by charging, including: the energy acquired by charging = strength of the charging signal multiplied by the charging efficiency (if present) multiplied by the charging time; where the charging signal strength multiplied by the charging efficiency may be considered as the charging speed;

[0179] the device determining a consumed energy if the device performs at least one of AIoT reception (including a state of blind detection and in which a signal has not been received) and transmission, and / or if an internal module of the device (such as a clock module, etc.) is operating; different operating states, such as reception, blind detection, transmission, whether to use amplifiers, timing, etc., may correspond to different energy consumption.

[0180] In an exemplary embodiment, the device may detect the remaining energy in real time, and the energy of the device is the detected energy. In another exemplary embodiment, the device cannot monitor the remaining energy in real time, and it needs to be estimated through charging and energy consumption. Specifically, after the device is charged from a power off state, the energy of the device is the initial remaining energy (it is assumed to be 0 in the power off state) plus the energy acquired by charging (if any) minus the energy consumed by the device. In another exemplary embodiment, the device cannot monitor the remaining energy in real time, and the device assumes that it is charged to the maximum battery capacity before starting the transmission and / or reception of AIoT transmissions. After performing at least one operation such as blind detection, reception, transmission, timing, the energy of the device is the battery capacity minus the energy consumed by the at least one operation.

[0181] If the device reports information related to charging and energy consumption to the reader, and / or the reader determines information related to charging and energy consumption of the device, the reader may determine the energy of the device using a similar method as the device. For example, the reader acquires the remaining energy reported by the device. For another example, in a scenario where the reader transmits a charging signal to the device, the reader may estimate the received signal strength of the charging signal at the device by measuring the D2R transmission of the device, or calculate the received signal strength of the charging signal at the device by estimating the path loss and determine the energy acquired by the device by charging based on the charging efficiency reported by the device and the time for which the reader provides the charging signal to the device.

[0182] Optionally, the device and / or reader determines, based on the information related to charging, at least one of:

[0183] a time length of an on mode and / or a time length of a sleep mode that can be supported by the device, further including a maximum and / or minimum time length;

[0184] a time length of an off mode that can be supported by the device further includes the maximum and / or minimum time length.

[0185] Optionally, the availability time of the device further includes a time for which transmission and / or reception can be performed, and / or (a length of) a time of the on mode and / or (a length of) a time of the sleep mode that can be supported by the device, and / or (a length of) a time for which the device can maintain clock timing, and further including a maximum and / or minimum availability time.

[0186] In various embodiments of the present specification, the availability time of the device may also be replaced by (the length of) the time of the on mode and / or (the length of) the time of the sleep mode that can be supported by the device and / or the transmission time corresponding to one AIoT transmission.

[0187] Optionally, the availability time of the device is determined by at least one of:

[0188] the energy of the device divided by the power consumption of the device (e.g., power consumption when transmitting, power consumption when receiving) when it is not charged;

[0189] the energy of the device divided by the net power consumption of the device when it is charged, which may be the power consumption of the device minus the speed at which the device is charged; optionally, when the power consumption of the device is below the charging speed, the device may be considered to be always available while being charged;

[0190] a time for which it is configured to be available, for example, by configuring a periodic timer, the device is configured to be available while the timer is running, and not to be available after the timer expires (it may enter the sleep mode); the method may be used in combination with other methods, for example, the device enters the availability state when the timer starts running, and enters the unavailability state and / or sleep mode after the availability time determined by other methods has been exceeded and / or after the power has been exhausted and / or after the timer has expired.

[0191] Optionally, the above method is performed by the device, and / or: if the device reports information related to charging and energy consumption to the reader, and / or the reader determines information related to charging and energy consumption of the device, the reader may use a similar method to the device to determine the availability time of the device.

[0192] Optionally, the above method is performed by the device, and the device reports the determined availability time to the reader. Further, the availability time is reported by a D2R signal, may be indicated by an explicit field in the D2R transmission, and / or indicated by the presence or absence of a preamble / midamble / postamble of the D2R transmission and / or information bits carried therein.

[0193] Optionally, the reader determines the maximum availability time of the device based on at least one of the energy of the device and / or the battery capacity of the device, the power consumption of the device, the speed at which the device is charged, or information related to the speed at which the device is charged. The physical meaning of the maximum availability time may be the maximum time that the device can remain available based on information related to the charging speed of the device when the battery is fully charged; for example, after the maximum time is exceeded, the power of the device is exhausted and the device is no longer available.

[0194] Optionally, the reader configures the availability time for the device, further including: configuring the value of the availability time for the device to correspond to or not exceed the maximum availability time of the device.

[0195] Optionally, the reader configures the availability time for the device, and / or the device acquires a configuration of the availability time, further including: after the availability time configured for the device ends, the device entering the sleep mode; specifically, the device does not receive or transmit AIoT transmissions, and optionally, the device enters the availability state after maintaining the clock timing until the next availability time.

[0196] Optionally, the reader determines whether the device is available, including at least one of:

[0197] the device being in the availability state in the availability time of the device, and the device being in the unavailability state or entering the sleep mode outside the availability time;

[0198] the device being in the availability state, when the device responds to the signal transmitted by the reader, otherwise the device being in the unavailability state or sleep mode. Further, after the reader transmits a signal to which the device is required to respond, in a predetermined time range, if the device responds to the signal transmitted by the reader, the device is available, otherwise the device is unavailable or sleeping; and / or, if the device responds to the signal transmitted by the reader, the device is available in another predetermined time range from the time of the response, and the device is unavailable or sleeping beyond the time range.

[0199] Optionally, if the device enters the unavailability state, the reader assumes that the energy of the device (before being charged) is zero. Optionally, if the device enters the sleep mode, the reader assumes that the energy of the device (before being charged) is zero or a predetermined value, which may be a predetermined percentage of the battery capacity of the device.

[0200] In various embodiments of the present specification, the number of available bits of the device may also be replaced by the number of bits corresponding to an AIoT transmission. Optionally, the number of available bits of the device further includes the number of bits that can be used for transmission and / or reception. The parameter may be determined by at least one of:

[0201] UE capabilities, optionally, the method is used when the device is assumed to be fully charged or has received a charging signal;

[0202] being preset or configured, optionally, the method is used when the device is assumed to be fully charged or has received a charging signal;

[0203] the availability time of the device multiplied by the transmission rate, also directly the energy and power consumption of the device, for example, the energy of the device divided by the power consumption of the device multiplied by the transmission rate.

[0204] The number of available bits of the device determined by the above method may be the number of bits of the physical layer, for example, including CRC, FEC coding, control information, signal header, preamble, further including the total number of bits of at least one other payload such as signals used for synchronization and / or a transmission start indicator, a transmission end indicator; it may also be the number of information bits, for example, the number of information bits that does not include at least one of CRC, FEC coding, control information, signal header (if the header is a signal header of the physical layer), etc.

[0205] The number of available bits of the device determined by the above method may be the number of bits before linear encoding or the number of code chips after linear encoding. In addition, if the AIoT transmission does not use linear encoding, the number of bits before linear encoding or the number of code chips that have not been linearly encoded may be considered to be the same, and the number of available bits of the device may also be the number of code chips that have not been linearly encoded. Optionally, the number of code chips is converted into the number of bits before linear encoding based on the linear encoding method, and the number of bits before linear encoding is used as the number of bits of the physical layer. For example, the number of code chips using Manchester encoding is twice the number of bits before linear encoding, the number of code chips using FMO encoding is twice the number of bits before linear encoding, and the number of code chips using PIE encoding is 3 times the number of bits before linear encoding (3-bit typical value, other values may also be used in actual systems), etc.

[0206] Optionally, the device and / or the reader determines the number of available bits of the physical layer of the device based on the above method, and further determines the number of available bits of the higher layer based on the number of available bits of the physical layer. Optionally, the number of available bits of the higher layer is the number of available bits of the physical layer minus the number of information bits of at least one of CRC, FEC coding, control information, signal header (if the header is a signal header of the physical layer), etc.

[0207] Optionally, if the AIoT transmission includes an R2D channel and / or a D2R channel and other physical layer payloads such as preambles, and there may be a gap between the R2D channel and / or the D2R channel and the payload (for example, a processing delay for the device to receive the R2D preamble and acquire / maintain clock synchronization based on the synchronization signal in the preamble), then when determining the number of available bits based on the availability time, it is necessary to subtract the possible gap from the availability time and determine the number of available bits based on the remaining availability time.

[0208] Optionally, when there is a frequency domain offset between the frequency domain position of the charging signal and the AIoT transmission, the size of the offset and / or the impact of the offset on charging may be determined by independent coefficients, or may be determined by different charging efficiency.

[0209] In an exemplary embodiment, when there is a large frequency domain offset between the frequency domain position of the charging signal and the AIoT transmission (for example, it is greater than a predetermined threshold, for another example, a frequency domain offset on the order of MHz), the charging speed or charging efficiency parameter is x1% of a charging speed or charging efficiency parameter when there is no frequency domain offset between the frequency domain position of the charging signal and the AIoT transmission when other parameters are unchanged; there is a small frequency domain offset between the frequency domain position of the charging signal and the AIoT transmission (for example, it is less than a predetermined threshold, for example, a frequency domain offset on the order of PRB / KHz), and the frequency domain offset is realized by a hardware module such as a frequency shifter, the charging speed or charging efficiency parameter is x2% of a charging speed or charging efficiency parameter when there is no frequency domain offset between the frequency domain position of the charging signal and the AIoT transmission when other parameters are unchanged; when there is a small frequency domain offset between the frequency domain position of the charging signal and the AIoT transmission, and the frequency domain offset is realized through linear encoding such as Miller code, the charging speed or charging efficiency parameter is x3% of a charging speed or charging efficiency parameter when there is no frequency domain offset between the frequency domain position of the charging signal and the AIoT transmission when other parameters are unchanged; the values of x1, x2, and x3 are preset, configured, or determined based on UE capabilities.

[0210] Optionally, transmitting and / or receiving the AIoT transmission based on the time of the at least one mode includes, before entering the on mode, and / or after entering the sleep mode and / or the off mode, performing at least one of:

[0211] the reader transmitting a charging signal to the device;

[0212] the device receiving the charging signal, which includes at least a charging signal transmitted by the reader, but may also include a charging signal transmitted by other network nodes.

[0213] Optionally, transmitting and / or receiving the AIoT transmission based on the time of the at least one mode includes performing at least one of:

[0214] if the device enters the on mode, the reader transmits the charging signal to the device; optionally, the transmitting of the charging signal may cover the time when the device is in the on mode;

[0215] if the device enters the sleep mode, the reader transmits the charging signal to the device; optionally, the transmitting of the charging signal may cover the time when the device is in the sleep mode;

[0216] if the device enters the on mode or sleep mode, it receives the charging signal, which includes at least the charging signal transmitted by the reader, and may also include the charging signal transmitted by other network nodes.

[0217] The device and / or reader receiving and / or transmitting the charging signal further includes: determining at least one of a start, an end, a time length, a frequency domain resource, a transmit power of the transmission of the charging signal; receiving and / or transmitting the charging signal based on at least one of the start, the end, the time length, the frequency domain resource, the transmit power of the transmission of the charging signal. Further, the method includes determining, through at least two of a start, an end, and a time length of the transmission position of the charging signal, the other of the start, the end, and the time length of the transmission position of the charging signal.

[0218] Optionally, the end of the transmission of the charging signal means that the reader will transmit the charging signal at least until the time point, but the reader does not necessarily terminate the transmission of the charging signal after the time point, but may still maintain the transmission of the charging signal; for example, when the end of the transmission position of the charging signal is before the start position of the on mode, the reader may maintain the transmission of the charging signal to the end position of the on mode to provide charging of the device in the time range of the on mode. Similarly, the start means that the reader will start transmitting the charging signal at least at the time point, but the reader may start transmitting the charging signal earlier before the time point.

[0219] Optionally, determining the end of the transmission of the charging signal includes determining based on a start time point of the on mode and / or a start time point of the availability time of the device. Further, a gap between the end of the transmission position of the charging signal and the start time point of the on mode and / or the start time point of the availability time of the device does not exceed a first threshold and / or is not below a second threshold. In an exemplary embodiment, a gap T1-TEH between the end TEH of the transmission position of the charging signal and the start time point T1 of the on mode does not exceed a first threshold, which may be used to ensure that the device does not wait too long after charging is completed and cannot complete the AIoT transmission in the time of the on mode because energy is consumed again during the waiting process. In another exemplary embodiment, the gap T1-TEH between the end TEH of the transmission position of the charging signal and the start time point T1 of the on mode is not below a second threshold, which is used to ensure that the device can complete charging before entering the on mode, so that sufficient energy is available to support the AIoT transmission in the time of the on mode. Optionally, if the device can determine whether to enter the on mode by detecting the WUS, and / or is configured with resources for the AIoT transmission, the start time point of the on mode in the method may also be replaced by the start time point of the WUS resource and / or the start time point of the resources for the AIoT transmission. Optionally, the technical effect based on the start time point in the method is pre-charging before processing potential AIoT transmissions; the start time point may also be replaced by the end time point, with the technical effect of maintaining the charging during processing potential AIoT transmissions. The reader may transmit both a charging signal whose end is determined in correspondence with a start time point in the method and a charging signal whose end is determined in correspondence with an end time point in the method, thereby ensuring energy supply in different phases of the communication process.

[0220] Optionally, determining the start of the transmission of the charging signal includes determining based on the start time point of the on mode and / or the start time point of the availability time of the device and / or the start time point of the sleep mode. Optionally, a gap between the start of the transmission position of the charging signal and the start time point of the on mode and / or the start time point of the availability time of the device does not exceed a first threshold and / or is not below a second threshold, where the first threshold ensures that the device is not prematurely charged to cause energy waste and interference of the charging signal to the wireless communication environment, and the second threshold may be used to ensure that the device can be charged in time after entering the on mode. Optionally, a gap between the start of the transmission position of the charging signal and the start time point of the sleep mode does not exceed a first threshold and / or is not below a second threshold, where the first threshold may be used to ensure that the device is not prematurely charged causes energy waste and the charging signal interferes with the wireless communication environment, the second threshold can be used to ensure that the device can quickly obtain charging energy after entering the sleep mode to complete charging earlier and can enter the on mode again for AIoT transmission.

[0221] Optionally, determining the time length of transmission of the charging signal includes determining based on the on mode and / or the time length corresponding to the availability time of the device and / or the number of bits corresponding to at least one AIoT transmission and / or the transmission time corresponding to at least one AIoT transmission. Further, at least one of the following is included:

[0222] the time length of the transmission of the charging signal being not shorter than the minimum time length corresponding to the on mode and / or the availability time of the device, and / or not shorter than the minimum length of the transmission time corresponding to the at least one AIoT transmission. If the communication process includes multiple AIoT transmissions (for example, the inventory process includes R2D signaling like Query and D2R signaling like RN16 and Msg1 that indicates information related to the device identity, it may also include R2D response signaling like Msg2, and D2R and R2D signaling for further interaction like Msg3 and Msg4, and R2D signaling indicating AIoT commands, etc.), the transmission time corresponding to the at least one AIoT transmission includes transmission times corresponding to the multiple AIoT transmissions. Optionally, the method is used for the charging signal at or after the start position of the on mode;

[0223] the time length of the transmission of the charging signal being not shorter than a first charging time; the first charging time corresponds to a time for which the device may acquire a specific energy by the charging signal, where the specific energy corresponds to the first energy level and / or the second energy level. Specifically, the first charging time may be determined by a method in which the strength of the charging signal multiplied by the charging efficiency multiplied by the first charging time is not below the first energy level and / or dose not exceed the second energy level; the first energy level corresponds to the power consumption corresponding to the minimum time length corresponding to the on mode and / or the availability time of the device, and / or the lowest power consumption corresponding to the on mode and / or the availability time of the device, and / or is not shorter than the power consumption corresponding to the length or minimum length of the transmission time corresponding to at least one AIoT transmission, and / or the power consumption or lowest power consumption corresponding to at least one AIoT transmission; the second energy level corresponds to the power consumption corresponding to the maximum time length corresponding to the on mode and / or the availability time of the device, and / or the maximum power consumption corresponding to the on mode and / or the availability time of the device, and / or does not exceed the power consumption corresponding to the length or maximum length of the transmission time corresponding to at least one AIoT transmission, and / or the power consumption or maximum power consumption corresponding to at least one AIoT transmission. Specifically, the first and second energy levels may be determined by multiplying the power consumption of the device by the minimum / maximum time length of the transmission time corresponding to the on mode and / or the availability time of the device and / or at least one AIoT transmission. Specifically, the transmission time and / or power consumption corresponding to the AIoT transmission may be determined based on the number of bits corresponding to the AIoT transmission and / or physical layer parameters such as transmission rate, linear coding, modulation, etc., where the number of bits corresponding to the AIoT transmission may be the number of bits corresponding to specific signaling, for example, the number of bits corresponding to D2R transmission like Msg1 / RN16 may be a 16-bit random number + 6-bit CRC. Optionally, the method is used for charging signals before the start position of the on mode, i.e. charging signals for pre-charging.

[0224] Optionally, based on the code rate, linear encoding, modulation, etc., the number of bits corresponding to at least one AIoT transmission may be converted into the transmission time corresponding to at least one AIoT transmission.

[0225] Optionally, determining the transmit power of the charging signal includes at least one of: always transmitting the charging signal at maximum power; determining the transmit power of the charging signal based on a path loss (including at least one of a reader-to-device path loss, a device-to-reader path loss and a reader-to-base station path loss, where the reader in the method may be replaced by a node transmitting the charging signal if the charging signal is not transmitted by the reader); determining the transmit power of the charging signal based on open loop power control, and / or closed loop power control, and / or power control parameters configured by the base station; determining the transmit power of the charging signal based on interference conditions with other readers and / or other nodes transmitting the charging signal. The interference conditions with other readers and / or other nodes transmitting the charging signal may be determined by measuring signal strengths of other readers and / or other nodes transmitting charging signals and / or by information indicated by other readers and / or other nodes transmitting charging signals and / or the base station.

[0226] Optionally, the device enters the on mode when at least one of the following conditions is satisfied:

[0227] the energy of the device being above a threshold (the method by which the device determines its own energy is explained in other embodiments); the threshold may correspond to at least one AIoT transmission, for example, the energy corresponding to the minimum value of the transmission time and / or number of bits (the method of calculating the energy is explained in other embodiments); and / or the threshold may correspond to the time length of the on mode, for example, the energy corresponding to the minimum time length (the method of calculating the energy is explained in other embodiments); and / or the threshold may be preset and / or configured and / or indicated to the device by the reader;

[0228] the device determining that the WUS is enabled according to preset criteria, and / or acquires configuration information related to the WUS; and / or the device receiving the WUS transmitted by the reader;

[0229] the device receiving indication information of the reader to the target device, and determining that it belongs to the target device;

[0230] determining, based on a timer, to enter the on mode; for example, based on configuration information of the timer, a time range in which the timer is running is determined, and in the time range, the device enters the on mode; the timer may be a timer corresponding to the on mode and / or at least one AIoT transmission;

[0231] the device being to start transmitting or receiving AIoT transmissions.

[0232] Entering the on mode includes entering the on mode at least Tproc before starting to transmit or receive AIoT transmissions, and / or before the time range in which the timer is running, where Tproc corresponds to the processing delay of entering the on mode and / or performing AIoT transmissions.

[0233] Optionally, the reader assumes that the device enters the on mode or indicates the device to enter the on mode when at least one of the following conditions is satisfied:

[0234] determining that the energy of the device is above an on threshold; further, if the reader provides the charging signal to the device, the energy acquired by the device may be determined based on the information related to the charging signal (specific methods are explained in other embodiments), such that whether the energy of the device is above the on threshold is determined based on the energy acquired by the device, and / or based on the remaining energy of the device and the acquired energy;

[0235] information related to the WUS being configured for the device; and / or the WUS being transmitted to the device;

[0236] an indication message to the target device being transmitted, where the device indicated in the message is assumed to enter the on mode (possibly if other conditions are also satisfied);

[0237] determining when the device enters an on mode based on information related to a timer configured or indicated for the device;

[0238] the reader receiving the D2R signaling transmitted by the device; and / or, for R2D signaling transmitted by the reader to the device, the reader receiving D2R response signaling transmitted by the device, e.g. D2R signaling like RN16 as R2D response signaling like Query in the inventory process, D2R confirmation signaling to R2D command signaling as response signaling in the command process, etc.

[0239] Optionally, if the reader needs to perform AIoT transmission with a specific target device, it transmits a WUS signal to the device before the AIoT transmission. Further, the WUS is transmitted to the device at least Tproc before the AIoT transmission is transmitted, and / or before a time range in which the timer corresponding to the on mode of the device is running, where Tproc corresponds to the processing delay of entering the on mode and / or performing the AIoT transmission.

[0240] Optionally, the device indicates to the reader at least one of the following conditions and / or indicates the need to be woken up by a WUS signal, and / or the reader is triggered to transmit a WUS signal to the device, if at least one of the following conditions is satisfied.

[0241] Optionally, if the reader needs to perform AIoT transmission with a specific target device, but assumes that the device fails to enter the on mode through the above conditions, a charging signal is transmitted to the device. Optionally, the transmission is performed at least until the running time of the timer corresponding to the on mode configured for the target device next time, and / or the time to transmit the WUS to the target device next time, and / or the device can acquire an energy above the on threshold through the charging signal.

[0242] Optionally, the reader configures the device with information related to the WUS and / or transmits the WUS to the device when at least one of the following conditions is satisfied; and / or the device determines that the WUS is enabled and / or receives a WUS transmitted by the reader when at least one of the following conditions is satisfied:

[0243] a charging signal power falling in a predetermined threshold range, e.g. being below a threshold;

[0244] the time length of the sleep mode and / or the off mode, and / or the length of the charging time (which may be determined by the time length of the charging signal) falling in a predetermined threshold range, e.g. exceeding a threshold; technical reasons for the method include that the estimation of the time point when to end the sleep / off mode and when to enter the on mode may not be accurate when the device maintains synchronization by its own clock in the sleep mode or when it may be out of synchronization in the off mode, the detection of the WUS can be used as a verification of the estimated time point, and in addition the detection of the WUS can also be used to calibrate / acquire synchronization.

[0245] Optionally, the device ends the on mode and / or enters the sleep mode when at least one of the following conditions is satisfied:

[0246] the device receiving the GTSS transmitted by the reader;

[0247] the energy of the device being below a sleep threshold (the method by which the device determines its own energy is explained in other embodiments); where the sleep threshold may correspond to at least one AIoT transmission, for example, corresponding to the energy corresponding to the minimum value of the transmission time and / or number of bits (the method of calculating the energy is explained in other embodiments); and / or the sleep threshold may correspond to the time length of the on mode, such as the energy corresponding to the minimum time length (the method of calculating the energy is explained in other embodiments); and / or the sleep threshold may be preset and / or configured and / or indicated to the device by the reader;

[0248] no R2D signaling being received in a given time range; where the given time range includes the maximum value and / or the minimum value of the time, and the start of the time range may be the time point when the device completed the transmission of D2R signaling last time, and / or the time point when the timer of the on mode starts running, and / or the start / end position of WUS resources;

[0249] determining to enter the sleep mode based on a timer.

[0250] Optionally, the device ends the on mode and / or enters the sleep mode when at least one of the following conditions is satisfied:

[0251] receiving first signaling, and / or the received first signaling not transmitted to the device or not satisfying the preset conditions; further, the device enters the sleep mode after receiving the first signaling according to preset criteria or received configuration information; where a duration of the sleep mode may be used for charging to compensate for the power consumption of receiving the first signaling, and / or the power consumption as pre-charging for subsequent transmitting / receiving of AIoT transmissions;

[0252] information related to entering the sleep mode being indicated in the received signaling;

[0253] information related to the time position of subsequent AIoT transmissions (including R2D transmissions and / or D2R transmissions) being indicated in the received signaling, and / or, according to preset / configured criteria, there being a gap in the time position between the received signaling and subsequent AIoT transmissions (e.g., there is a gap between R2D and its corresponding D2R transmission, and the minimum and / or maximum value of the gap is preset).

[0254] The first signaling includes at least one of:

[0255] an R2D transmission used to trigger inventory and / or indicate configuration related to inventory and / or scheduling information, like Query, QueryRep, QueryAdjust, etc., which is referred to as AIoT-Msg0 in the embodiment for ease of description;

[0256] an R2D transmission in response to AIoT-Msg1 transmitted by the device, referred to in the embodiment as AIoT-Msg2 for ease of description, where AIoT-Msg1 includes a D2R transmission transmitted by the device in response to AIoT-Msg0, which may be used to indicate information related to the identity of the device, including a random number with a number of bits generated randomly and / or based on the ID of the device (e.g. like RN16 in RFID);

[0257] an R2D transmission in response to AIoT-Msg3 transmitted by the device, referred to in the embodiment as AIoT-Msg4 for ease of description, where AIoT-Msg3 includes a D2R transmission transmitted by the device in response to AIoT-Msg2, which may be used to indicate information related to AIoT services and information that needs to be reported in the inventory process (e.g., information like EPC in RFID);

[0258] multicast or broadcast R2D signaling;

[0259] R2D signaling with a length and / or transmission time falling in a given threshold range.

[0260] The information related to entering the sleep mode includes at least one of:

[0261] a GTSS signal;

[0262] an identity and / or type of a device that needs to enter the sleep mode (which may be indicated by UE capabilities);

[0263] information corresponding to the previous transmission of the device that needs to enter the sleep mode, including the resource position corresponding to the transmission (for example, it may be a frequency domain position) and / or the information indicated in the transmission (for example, the information for distinguishing identities indicated in AIoT-Msg1);

[0264] a time point for ending the on mode and / or entering the sleep mode; optionally, the time point includes a specific time point (for example, it is determined by adding a preset / indicated offset to the time position where signaling indicating information related to entering the sleep mode is located), and / or a time range after the time position where the signaling of information related to the entering sleep mode is located (the start and / or end corresponding to the time range may be preset, and may be 0 or infinity, for example, the device entering the sleep mode immediately after the time position where the signaling of the information related to entering the sleep mode corresponds to 0, and for another example, the device entering the sleep mode at any time after the time position where the signaling of the information related to entering the sleep mode corresponds to infinity);

[0265] a time point for ending the sleep mode and / or entering the on mode;

[0266] information related to the charging signal, including at least one of a start position, an end position, a length (including minimum and / or maximum length) of the charging signal;

[0267] a time length corresponding to the sleep mode; where the information may be indicated by a timer; the information may be used to determine a time point for ending the sleep mode and / or entering the on mode.

[0268] Optionally, for the device to end the on mode and / or enter the sleep mode when receiving the first signaling and the received first signaling is not transmitted to the device, the method further includes at least one of:

[0269] indicating a time position of a next D2R transmission and / or R2D transmission in the received first signaling; ending the on mode and / or entering the sleep mode until before the time position of the next R2D transmission or until before the time position of the next D2R transmission. The time position of the next D2R transmission includes the end time position of the next D2R transmission (optionally, when the end position is indicated in the received first signaling, and / or can be determined by preset signaling length / transmission time length and the start time position of the next D2R transmission, the method is used), and / or the start position of the next D2R transmission plus a preset offset, where the preset offset may correspond to the minimum transmission time of D2R transmission (which may be the transmission time corresponding to the minimum number of bits), or the minimum value of the preset gap between D2R transmission and R2D transmission, or the sum of both;

[0270] the received first signaling corresponding to a specific communication process (such as inventory, command, inventory and command), where the time length corresponding to the communication process (including at least one period of the communication process) (including the minimum value and / or maximum value of the time length) is preset; ending the on mode and / or entering the sleep mode until the end of the specific communication process, where the end position may be determined by the start position and time length of the communication process.

[0271] Optionally, for the device to end the on mode and / or enter the sleep mode when receiving the first signaling and the received first signaling does not satisfy the preset conditions, the method further includes: receiving AIoT-Msg0, if it is determined that there is no need for AIoT transmission and / or reception in the communication process corresponding to the AIoT-Msg0 or a period of the communication process (for example, the time after the AIoT-Msg0 and before the next AIoT-Msg0 corresponds to a period), ending the on mode, and / or entering the sleep mode.

[0272] In a specific example, the device enters the sleep mode after receiving the AIoT-Msg0, and the length of the sleep mode may be related to the power consumption in the process of receiving the AIoT-Msg0.

[0273] In another specific example, after receiving AIoT-Msg0 (or AIoT-Msg2, or other R2D transmissions), the device enters the sleep mode until the resource position corresponding to the AIoT-Msg0 where AIoT-Msg1 is transmitted (or the resource position corresponding to the AIoT-Msg2 where AIoT-Msg3 is transmitted or the time position of subsequent D2R transmissions scheduled by other R2D transmissions). The method may be understood as the device entering the sleep mode for charging at the gap between an R2D reception and a subsequent D2R transmission corresponding to the R2D, and entering the on mode to perform the transmission before transmitting the subsequent D2R transmission.

[0274] In another specific example, the device receives an R2D transmission and determines that other devices are performing inventory and / or command-related communication processes, and then enters the sleep mode until the communication processes performed by the other devices end. In the above time range corresponding to the sleep mode, the device may also enter the on mode at the time point corresponding to AIoT-Msg0 to receive potential AIoT-Msg0, and end the on mode and enter the sleep mode in other time ranges; and / or the device enters the on mode to receive potential R2D transmissions at the time point when an inventory-related process may end (for example, it is determined by the time length / minimum time length / maximum time length corresponding to an inventory process) and / or determines whether command-related communication processes performed by other devices are included after the inventory process in the communication process ends, and if included, enters the sleep mode in the command-related process, and enters the on mode after the time point when the command-related process may end.

[0275] Optionally, the reader assumes that the device enters the sleep mode or indicates the device to enter the sleep mode (in the embodiment, the sleep mode may also be replaced by the off mode) when at least one of the following conditions is satisfied:

[0276] information related to a GTSS being configured for the device; and / or the GTSS being transmitted to the device; and / or confirmation signaling of the GTSS transmitted by the device being received;

[0277] determining that the energy of the device being below a threshold; further, if the reader provides the charging signal to the device, the energy acquired by the device may be determined based on the information related to the charging signal (specific methods are explained in other embodiments), such that whether the energy of the device is above the threshold is determined based on the energy acquired by the device, and / or based on the remaining energy of the device and the acquired energy;

[0278] the AIoT transmission process with the target device ending;

[0279] when the device enters the sleep mode being determined based on information related to a timer configured or indicated for the device;

[0280] the reader failing to receive D2R signaling transmitted by the device and / or failing to receive D2R response signaling to R2D signaling in a given time range. The given time range includes the maximum value and / or the minimum value of the time, and the start of the time range may be the time point when the reception of D2R signaling was completed last time and / or the time point when the transmission of R2D signaling was completed last time, and / or the time point when the timer of the on mode starts running, and / or the start / end position of the WUS resource.

[0281] Optionally, if the reader needs to perform AIoT transmission with a specific target device, but assumes that the device fails to enter the on mode through the above conditions, then it transmits the charging signal to the device. Optionally, the transmission is performed at least until the running time of the timer corresponding to the on mode configured for the target device next time, and / or the time to transmit the WUS to the target device next time, and / or the device can acquire an energy above the threshold through the charging signal.

[0282] FIG. 6 illustrates a block diagram of an electronic device 600 according to various embodiments of the present disclosure.

[0283] Referring to FIG. 6, the electronic device 600 according to various embodiments of the present disclosure may include a transceiver 601 and a controller 602. For example, the transceiver 601 may be configured to transmit and receive signals. For example, the controller 602 may be coupled to the transceiver 601 and configured to perform the aforementioned methods.

[0284] Those skilled in the art will understand that the above illustrative embodiments are described herein and are not intended to be limiting. It should be understood that any two or more of the embodiments disclosed herein may be combined in any combination. Furthermore, other embodiments may be utilized and other changes may be made without departing from the spirit and scope of the subject matter presented herein. It will be readily understood that aspects of the invention of the disclosure as generally described herein and shown in the drawings may be arranged, replaced, combined, separated and designed in various different configurations, all of which are contemplated herein.

[0285] Those skilled in the art will understand that the various illustrative logical blocks, modules, circuits, and steps described in the present application may be implemented as hardware, software, or a combination of both. To clearly illustrate this interchangeability between hardware and software, various illustrative components, blocks, modules, circuits, and steps are generally described above in the form of their functional sets. Whether such function sets are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system. Technicians may implement the described functional sets in different ways for each specific application, but such design decisions should not be interpreted as causing a departure from the scope of the present application.

[0286] The various illustrative logic blocks, modules, and circuits described in the present application may be implemented or performed by a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic devices, discrete gates or transistor logics, discrete hardware components, or any combination thereof designed to perform the functions described herein. The general purpose processor may be a microprocessor, but in an alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, more than one microprocessors, one or more microprocessors cooperating with a DSP core, or any other such configuration.

[0287] The steps of the method or algorithm described in the present application may be embodied directly in hardware, in a software module executed by a processor, or in a combination thereof. The software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, register, hard disk, removable disk, or any other form of storage medium known in the art. An exemplary storage medium is coupled to a processor to enable the processor to read and write information from / to the storage media. In an alternative, the storage medium may be integrated into the processor. The processor and the storage medium may reside in an ASIC. The ASIC may reside in a user terminal. In an alternative, the processor and the storage medium may reside in the user terminal as discrete components.

[0288] In one or more exemplary designs, the functions may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, each function may be stored as one or more pieces of instructions or codes on a computer-readable medium or delivered through it. The computer-readable medium includes both a computer storage medium and a communication medium, the latter including any medium that facilitates the transfer of computer programs from one place to another. The storage medium may be any available medium that can be accessed by a general purpose or special purpose computer.

[0289] The above description is only an exemplary implementation of the present invention, and is not intended to limit the scope of protection of the present invention, which is determined by the appended claims.

Claims

1.A method performed by a first device in a wireless communication system, comprising:determining, based on first information related to charging of the first device, second information related to a time of at least one mode of the first device;transmitting, to a second device, the second information; andperforming at least one of a wireless transmission and a wireless reception based on the second information.2.The method of claim 1, wherein determining the second information related to the time of the at least one mode of the first device comprises:determining the second information related to the time of the at least one mode of the first device based on information related to the at least one mode.3.The method of claim 1, wherein the at least one mode includes at least one of an on mode, a sleep mode, or an off mode.4.The method of claim 1, wherein the first information includes at least one of:information on a wireless transmission related to charging,a battery capacity of the first device or a capability related to the battery capacity of the first device,a charging efficiency of the first device or a capability related to the charging efficiency of the first device,information related to a charging signal,information on whether there is a frequency domain offset between a frequency domain position of the charging signal and the wireless transmission,an energy of the first device,an availability time of the first device,a number of available bits of the first device,a speed at which the first device is charged or a capability related to the speed at which the first device is charged,information on whether the first device supports simultaneous wireless transmission and charging or a capability related to whether the first device supports simultaneous wireless transmission and charging,information on whether the first device has been charged and supports simultaneous wireless transmission and charging,information on whether the first device is to be charged and supports simultaneous wireless transmission and charging or a capability related to power consumption of the first device,modulation of the wireless transmission,the power consumption of the first device, ora capability related to whether the first device supports the at least one mode.5.The method of claim 4, wherein the information on the wireless transmission related to charging includes at least one of:a number of bits corresponding to at least one wireless transmission, ora transmission time corresponding to at least one wireless transmission.6.The method of claim 4, wherein the information related to the at least one mode includes at least one of:a configuration related to the at least one mode,a configuration related to a wake up signal,a configuration related to a go to sleep signal,a first threshold for entering or ending the at least one mode,at least one timer corresponding to the at least one mode,at least one period of a timer corresponding to the at least one mode,at least one offset between a start position or an end position of the timer corresponding to the at least one mode and a reference point,at least one timer corresponding to synchronization,at least one period of a timer corresponding to synchronization, orat least one offset between a start position or an end position of the timer corresponding to synchronization and a reference point.7.The method of claim 1, wherein the second information includes at least one of a time length, a maximum time length, and a minimum time length of the at least one mode supported by the first device.8.The method of claim 4, wherein the number of available bits of the first device includes a number of bits for the wireless transmission that is determined by at least one of:a capability of the first device,a preset or configured value, orthe availability time of the first device and a rate of the wireless transmission.9.The method of claim 3, further comprising:entering the on mode in case that a first condition is satisfied,wherein the first condition includes at least one of:an energy of the first device being above a second threshold,information on the first device determining that a wake up signal is enabled, or obtaining configuration information related to the wake up signal, or receiving the wake up signal transmitted by the second device,information on the first device receiving indication information on the second device for a target device, and determining that the first device belongs to the target device,information on the first device determining to enter the on mode based on a timer, orinformation on the first device being to start transmitting or receiving the wireless transmissions.10.The method of claim 3, further comprising:ending the on mode or entering the sleep mode in case that a fourth condition is satisfied,wherein the fourth condition includes at least one of:information on the first device receiving a go to sleep signal transmitted by the second device,an energy of the first device being below a fourth threshold,not receiving second device-to-first device signaling in a first time range,determining to enter the sleep mode based on a timer,first signaling being received,the received first signaling being not transmitted to the first device or not satisfying a preset condition,information related to entering the sleep mode being indicated in received signaling,information related to a time position of a subsequent wireless transmission being indicated in the received signaling, orthere being a gap in a time position between the received signaling and the subsequent wireless transmission.11.The method of claim 10, wherein the information related to entering the sleep mode includes at least one of:the go to sleep signal,an identity or a type of a device that needs to enter the sleep mode,information corresponding to a previous transmission by the device that needs to enter the sleep mode,a time point for ending the on mode or entering the sleep mode,a time point for ending the sleep mode or entering the on mode,information related to a charging signal, ora time length corresponding to the sleep mode.12.A method performed by a second device in a wireless communication system, comprising:receiving, from a first device, second information related to a time of at least one mode of the first device, wherein the second information is determined based on first information related to charging of the first device; andperforming at least one of a wireless transmission and a wireless reception based on the second information.13.The method of claim 12, further comprising:assuming or indicating the first device to enter a sleep mode in case that a first condition is satisfied,wherein the first condition comprises at least one of:the first device being configured with information related to a go to sleep signal;the go to sleep signal being transmitted to the first device;confirmation signaling of the go to sleep signal transmitted by the first device being received;an energy of the first device being determined to be below a fifth threshold;when the first device enters the sleep mode being determined;a wireless transmission with a target device being ended;first device-to-second device signaling transmitted by the first device or first device-to-second device response signaling transmitted by the first device being not received in a second time range.14.A first device in a wireless communication system, the first device comprising:a transceiver; andat least one processor coupled to the transceiver and configured to:determine, based on first information related to charging of the first device, second information related to a time of at least one mode of the first device;transmit, to a second device, the second information; andperforming at least one of a wireless transmission and a wireless reception based on the second information.15.A second device in a wireless communication system, the first device comprising:a transceiver; andat least one processor coupled to the transceiver and configured to:receive, from a first device, second information related to a time of at least one mode of the first device, wherein the second information is determined based on first information related to charging of the first device; andperforming at least one of a wireless transmission and a wireless reception based on the second information.

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