Method and apparatus 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 information related to charging of a first device, N transmissions corresponding to one signaling, where N is an integer greater than or equal to 1; determining, based on the information related to charging of the first device, to transmit at least one part of the one signaling to a second device in an n-th transmission, where n is a positive integer less than or equal to N; determining a transmission resource corresponding to the n-th transmission; and performing the n-th transmission on the transmission resource, where the information related to charging of the first device includes at least one of information or a capability of the first device related to charging, information of a wireless transmission related to charging, information related to at least one mode of the first device.

Description

METHOD AND APPARATUS 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] The present invention relates to a method for transmitting and receiving wireless signaling in a communication system.

[0009] According to an embodiment of the present disclosure, there is provided a method performed by a first device in a wireless communication system, including: determining, based on information related to charging of the first device, N transmissions corresponding to one signaling, where N is an integer greater than or equal to 1; determining, based on the information related to charging of the first device, to transmit at least one part of the one signaling to a second device in an n-th transmission, where n is a positive integer less than or equal to N; determining a transmission resource corresponding to the n-th transmission; and performing the n-th transmission on the transmission resource, where the information related to charging of the first device includes at least one of information or a capability of the first device related to charging, information of a wireless transmission related to charging, information related to at least one mode of the first device.

[0010] In some implementations, the information or the capability of the first device related to charging includes at least one of: 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, and / or whether the first device is to be charged and supports simultaneous wireless transmission and charging; power consumption of the first device, or a capability related to the power consumption of the first device; a capability related to whether the first device supports the at least one mode.

[0011] 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; modulation of the wireless transmission; a transmission time corresponding to at least one wireless transmission.

[0012] 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; an energy 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.

[0013] In some implementations, the method further includes: determining, based on a first condition, whether to segment the one signaling into at least one sub-signaling; segmenting, based on the determination, the one signaling into the at least one sub-signaling.

[0014] In some implementations, the method further includes performing, based on the first condition, at least one of: determining a length or a threshold of the length of the at least one sub-signaling; and / or determining a transmission time or a threshold of the transmission time corresponding to the at least one sub-signaling, and / or determining to transmit at least one part of the one signaling, and / or determining a number of bits or a threshold of the number of bits of at least one part of the one signaling, and / or determining a transmission time or a threshold of the transmission time corresponding to at least one part of the one signaling.

[0015] In some implementations, the determining to transmit at least one part of the one signaling to the second device in the n-th transmission includes: determining to transmit one or more of the at least one sub-signaling in the n-th transmission.

[0016] In some implementations, the first condition includes at least one of: whether the first device is configured or preconfigured to segment the one signaling into the at least one sub-signaling; whether the first device is configured or preconfigured with a length of the at least one sub-signaling; whether the first device is indicated by the second device to segment the one signaling into the at least one sub-signaling, and / or whether the first device indicates the second device to segment the one signaling into the at least one sub-signaling; a battery capacity of the first device; a charging efficiency of the first device; whether the first device supports a sleep mode; 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; whether the first device supports simultaneous receiving of the wireless transmissions and charging and / or simultaneous transmitting of the wireless transmissions and charging; the first device having been charged and supporting simultaneous wireless transmission and charging, and / or the first device being to be charged and supporting simultaneous wireless transmission and charging; 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; modulation of the wireless transmission; and power consumption of the first device.

[0017] In some implementations, the determining whether to segment the one signaling into the at least one sub-signaling includes at least one of: segmenting the one signaling into multiple sub-signaling when a length of the one signaling exceeds the threshold of the length; segmenting the one signaling into multiple sub-signaling when a transmission time of the one signaling exceeds the threshold of the transmission time.

[0018] In some implementations, the determining to transmit at least one part of the one signaling to the second device in the n-th transmission includes at least one of: transmitting at least one part of the one signaling when a number of bits of the one signaling exceeds the threshold of the number of bits; transmitting at least one part of the one signaling when a transmission time corresponding to the one signaling exceeds the threshold of the transmission time.

[0019] In some implementations, the energy of the first device is determined based on at least one of: a determined remaining energy; a battery capacity of the first device; an energy harvested by the first device through charging; and at least one of a wireless reception and a wireless transmission performed by the first device.

[0020] In some implementations, the availability time of the first device is determined based on 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.

[0021] In some implementations, the number of the available bits of the first device is determined based on at least one of: a capability of the first device; the first device being preset or configured with the number of the available bits of the first device; and the availability time of the first device and a rate of the wireless transmission.

[0022] In some implementations, the determining to transmit at least one part of the one signaling to the second device in the n-th transmission includes at least one of: determining, based on a first number of bits of a physical layer of the first device, to transmit bits of the one signaling with a number less than or equal to the first number of bits in the n-th transmission; determining, based on the first number of bits, to transmit bits of the one signaling with a number less than or equal to a first number in the n-th transmission, where the first number is determined based on a number of information bits of a higher layer and a number of bits of other payloads; determining, based on a second number of bits of a higher layer of the first device, to transmit information bits of the one signaling with a number less than or equal to the second number of bits that are delivered to the physical layer by the higher layer in the n-th transmission; determining, based on the second number of bits, to transmit information bits of the higher layer of the one signaling with a number less than or equal to the second number of bits in the n-th transmission.

[0023] In some implementations, the segmenting the one signaling into the at least one sub-signaling includes at least one of: segmenting, based on a first number of bits of a physical layer of the first device, the one signaling into the at least one sub-signaling, where a number of bits of each sub-signaling is less than or equal to the first number of bits; segmenting, based on the first number of bits, the one signaling into the at least one sub-signaling, where a sum of a number of information bits of a higher layer of each sub-signaling and a number of bits of other payloads is less than or equal to the first number of bits; segmenting, based on a second number of bits of a higher layer of the first device, the one signaling into the at least one sub-signaling, where the number of the information bits of the higher layer of each sub-signaling is less than or equal to the second number of bits; segmenting, based on the second number of bits, the one signaling into the at least one sub-signaling, where the number of the information bits of the higher layer of each sub-signaling is less than or equal to the second number of bits.

[0024] In some implementations, the method further includes at least one of: transmitting a preamble or an midamble corresponding to at least one sub-signaling before the at least one sub-signaling; transmitting a signal header corresponding to at least one sub-signaling before the at least one sub-signaling; transmitting a postamble corresponding to at least one sub-signaling after the at least one sub-signaling; and transmitting a cyclic redundancy check corresponding to at least one sub-signaling after the at least one sub-signaling.

[0025] In some implementations, the method further includes at least one of: adding a first indicator in or after last sub-signaling; adding a second indicator in or after sub-signaling other than the last sub-signaling; indicating a number of at least one sub-signaling in the at least one sub-signaling; indicating an index of sub-signaling in at least one sub-signaling.

[0026] In some implementations, the method further includes transmitting, to the second device, the information related to charging of the first device.

[0027] In some implementations, whether the first device is configured or preconfigured to segment the one signaling into the at least one sub-signaling and / or determine the length or the threshold of the length of the at least one sub-signaling is related to a characteristic and / or a length corresponding to first device-to-second device signaling and / or second device-to-first device signaling, where the first device-to-second device signaling and / or the second device-to-first device signaling are configured or indicated respectively.

[0028] 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 at least one of the charging signal, a first device-to-second device signal, and a second device-to-first device signal.

[0029] In some implementations, the signal strength of the charging signal is the same as or has a first offset from a signal strength of the first device-to-second device signal, and / or the signal strength of the charging signal is the same as or has a second offset from a signal strength of the second device-to-first device signal.

[0030] In some implementations, the signal strength of the charging signal is determined by at least one of: a reference signal received power (RSRP), a received signal strength indicator (RSSI), a path loss, and information related to a strength or a strength range of the charging signal.

[0031] In some implementations, the determining the transmission resource corresponding to the n-th transmission includes at least one of: determining multiple transmission resources, where each transmission resource corresponds to one transmission; determining a time range and selecting one or more transmission resources in the time range; determining at least one transmission resource, where the at least one transmission resource corresponds to a total number of bits of the one signaling, and / or corresponds to all sub-signaling, and / or corresponds to a threshold time for the first device to transmit, and / or corresponds to a threshold time of an on state of the first device.

[0032] In some implementations, the method further includes at least one of: receiving first signaling or transmitting second signaling; receiving first information or transmitting second information; where the first signaling, or a header or a preamble of the first signaling, or the second signaling, or a header or a preamble of the second signaling, or the first information, or the second information indicates information on whether to segment signaling into sub-signaling, and / or a size of the sub-signaling and / or a number of sub-signaling corresponding to one transmission.

[0033] In some implementations, the method further includes at least one of: receiving confirmation signaling from the second device, and / or receiving information related to contents that have been received and / or information related to contents that have not been received from the second device.

[0034] In some implementations, the method further includes: receiving or transmitting, from or to the second device, an indication for adjusting a size of a transmission resource and / or a number of bits of sub-signaling if transmission resources used by the wireless transmission are less than transmission resources corresponding to the wireless transmission or contents of signaling corresponding to the wireless transmission are not all transmitted or not all received by the second device.

[0035] 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 at least one part of one signaling from a first device in an n-th transmission of N transmissions corresponding to the one signaling, where the N transmissions are determined based on information related to charging of the first device, and where N is an integer greater than or equal to 1, and n is a positive integer less than or equal to N; and receiving the one signaling based on the at least one part of the one signaling, where the information related to charging of the first device includes at least one of information or a capability of the first device related to charging, information of a wireless transmission related to charging, information related to at least one mode of the first device.

[0036] In some implementations, the information or the capability of the first device related to charging includes at least one of: 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, and / or whether the first device is to be charged and supports simultaneous wireless transmission and charging; power consumption of the first device, or a capability related to the power consumption of the first device; a capability related to whether the first device supports the at least one mode.

[0037] 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; modulation of the wireless transmission; a transmission time corresponding to at least one wireless transmission.

[0038] 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; an energy 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.

[0039] In some implementations, the one signaling is segmented into at least one sub-signaling based on a first condition.

[0040] In some implementations, the determining to receive at least one part of the one signaling from the first device in the n-th transmission includes: determining to receive one or more of the at least one sub-signaling in the n-th transmission.

[0041] In some implementations, the first condition includes at least one of: whether the first device is configured or preconfigured to segment the one signaling into the at least one sub-signaling; whether the first device is configured or preconfigured with a length of the at least one sub-signaling; whether the first device is indicated by the second device to segment the one signaling into the at least one sub-signaling, and / or whether the first device indicates the second device to segment the one signaling into the at least one sub-signaling; a battery capacity of the first device; a charging efficiency of the first device; whether the first device supports a sleep mode; 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; whether the first device supports simultaneous receiving of the wireless transmissions and charging and / or simultaneous transmitting of the wireless transmissions and charging; the first device having been charged and supporting simultaneous wireless transmission and charging, and / or the first device being to be charged and supporting simultaneous wireless transmission and charging; 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; modulation of the wireless transmission; and power consumption of the first device.

[0042] In some implementations, the one signaling is segmented into multiple sub-signaling when a length of the one signaling exceeds the threshold of the length; and / or the one signaling is segmented into multiple sub-signaling when a transmission time of the one signaling exceeds the threshold of the transmission time.

[0043] In some implementations, the determining to receive at least one part of the one signaling from the first device in the n-th transmission includes at least one of: receiving at least one part of the one signaling when a number of bits of the one signaling exceeds the threshold of the number of bits; receiving at least one part of the one signaling when a transmission time corresponding to the one signaling exceeds the threshold of the transmission time.

[0044] In some implementations, the energy of the first device is determined based on at least one of: a determined remaining energy; a battery capacity of the first device; an energy harvested by the first device through charging; and at least one of a wireless reception and a wireless transmission performed by the first device.

[0045] In some implementations, the availability time of the first device is determined based on 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 number of the available bits of the first device is determined based on at least one of: a capability of the first device; the first device being preset or configured with the number of the available bits of the first device; and the availability time of the first device and a rate of the wireless transmission.

[0047] In some implementations, the determining to receive at least one part of the one signaling from the first device in the n-th transmission includes at least one of: determining, based on a first number of bits of a physical layer of the first device, to receive bits of the one signaling with a number less than or equal to the first number of bits in the n-th transmission; determining, based on the first number of bits, to receive bits of the one signaling with a number less than or equal to a first number in the n-th transmission, where the first number is determined based on a number of information bits of a higher layer and a number of bits of other payloads; determining, based on a second number of bits of a higher layer of the first device, to receive information bits of the one signaling with a number less than or equal to the second number of bits that are delivered to the physical layer by the higher layer in the n-th transmission; determining, based on the second number of bits, to receive information bits of the higher layer of the one signaling with a number less than or equal to the second number of bits in the n-th transmission.

[0048] In some implementations, the one signaling is segmented into the at least one sub-signaling based on a first number of bits of a physical layer of the first device, where a number of bits of each sub-signaling is less than or equal to the first number of bits; and / or the one signaling is segmented into the at least one sub-signaling based on the first number of bits, where a sum of a number of information bits of a higher layer of each sub-signaling and a number of bits of other payloads is less than or equal to the first number of bits; and / or the one signaling is segmented into the at least one sub-signaling based on a second number of bits of a higher layer of the first device, where the number of the information bits of the higher layer of each sub-signaling is less than or equal to the second number of bits; and / or the one signaling is segmented into the at least one sub-signaling based on the second number of bits, where the number of the information bits of the higher layer of each sub-signaling is less than or equal to the second number of bits.

[0049] In some implementations, the method further includes receiving, from the first device, the information related to charging of the first device.

[0050] In some implementations, whether the first device is configured or preconfigured to segment the one signaling into the at least one sub-signaling and / or determine the length or the threshold of the length of the at least one sub-signaling is related to a characteristic and / or a length corresponding to first device-to-second device signaling and / or second device-to-first device signaling, where the first device-to-second device signaling and / or the second device-to-first device signaling are configured or indicated respectively.

[0051] 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 at least one of the charging signal, a first device-to-second device signal, and a second device-to-first device signal.

[0052] In some implementations, the signal strength of the charging signal is the same as or has a first offset from a signal strength of the first device-to-second device signal, and / or the signal strength of the charging signal is the same as or has a second offset from a signal strength of the second device-to-first device signal.

[0053] In some implementations, the signal strength of the charging signal is determined by at least one of: a reference signal received power (RSRP), a received signal strength indicator (RSSI), a path loss, and information related to a strength or a strength range of the charging signal.

[0054] In some implementations, the method further includes at least one of: transmitting first signaling or receiving second signaling; transmitting first information or receiving second information; where the first signaling, or a header or a preamble of the first signaling, or the second signaling, or a header or a preamble of the second signaling, or the first information, or the second information indicates information on whether to segment signaling into sub-signaling, and / or a size of the sub-signaling and / or a number of sub-signaling corresponding to one transmission.

[0055] In some implementations, the method further includes at least one of: transmitting, to the first device, confirmation signaling, if all contents of signaling corresponding to the wireless transmission are received; transmitting, to the first device, the confirmation signaling, if all contents of the signaling corresponding to the wireless transmission are received and correctly decoded; not transmitting, to the first device, the confirmation signaling, if all contents of the signaling corresponding to the wireless transmission are not received or are not correctly decoded; transmitting, to the first device, information related to contents that have been received and / or information related to contents that have not been received, if contents of the signaling corresponding to the wireless transmission are not all received.

[0056] In some implementations, the method further includes: transmitting or receiving, to or from the first device, an indication for adjusting a size of a transmission resource and / or a number of bits of sub-signaling if transmission resources used by the wireless transmission are less than transmission resources corresponding to the wireless transmission or contents of signaling corresponding to the wireless transmission are not all received or not all transmitted by the first device.

[0057] 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 to the transceiver and configured to perform the aforementioned methods.

[0058] The present invention provides a method for transmitting and receiving wireless signaling in a communication system. The method enables signaling transmission to be more flexible and can be adapted to different application scenarios.

[0059] In order to illustrate the technical schemes of the embodiments of the present disclosure more clearly, the drawings of the embodiments of the present disclosure will be briefly introduced below. Apparently, the drawings described below only refer to some embodiments of the present disclosure, and do not limit the disclosure. In the drawings:

[0060] FIG. 1 illustrates a schematic diagram of an example wireless network according to various embodiments of the present disclosure;

[0061] FIGs. 2a and 2b illustrate example wireless transmission and reception paths according to various embodiments of the present disclosure;

[0062] FIG. 3a illustrates an example user equipment (UE) according to various embodiments of the present disclosure;

[0063] FIG. 3b illustrates an example gNB according to various embodiments of the present disclosure;

[0064] FIG. 4 illustrates a flowchart of a method performed by a first device according to various embodiments of the present disclosure;

[0065] FIG. 5 illustrates a flowchart of a method performed by a second device according to various embodiments of the present disclosure;

[0066] FIG. 6 illustrates a block diagram of an electronic device according to various embodiments of the present disclosure.

[0067] 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.

[0068] 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.

[0069] 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.

[0070] 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.

[0071] 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.

[0072] 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.

[0073] 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.

[0074] 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.

[0075] 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).

[0076] 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.

[0077] 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.

[0078] 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.

[0079] 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.

[0080] 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.

[0081] 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.

[0082] 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.

[0083] 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.

[0084] 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.

[0085] 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.

[0086] 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.).

[0087] 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.

[0088] 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.

[0089] 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.

[0090] 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).

[0091] 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.

[0092] 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.

[0093] 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.

[0094] 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).

[0095] 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.

[0096] 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.

[0097] 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.

[0098] 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.

[0099] 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.

[0100] 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.

[0101] 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.

[0102] 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.

[0103] 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.

[0104] 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.

[0105] 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).

[0106] 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.

[0107] 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.

[0108] 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.

[0109] 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.

[0110] 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.

[0111] 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.

[0112] 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.

[0113] 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.

[0114] 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.

[0115] 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.

[0116] The charging speed of AIoT devices is affected by the charging signal power and charging conversion efficiency, and higher peak power consumption is required in some operating states such as using energy amplifier modules. Therefore, in the AIoT system, there may be a scenario where the charging speed of AIoT devices is lower than the energy consumption speed, so it is necessary to perform AIoT transmission / reception based on the energy stored in the battery. Since AIoT devices usually have a simple structure and limited battery capacity, they may not be able to support complete transmission / reception of long signaling with a large number of bits in this scenario. Therefore, an enhanced wireless signaling transmission method is urgently needed to improve signaling transmission flexibility.

[0117] The present invention provides a method for transmitting and receiving wireless signaling in a communication system. The method enables signaling transmission to be more flexible and can be adapted to different application scenarios.

[0118] 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.

[0119] 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.

[0120] 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.

[0121] Transmission in the present specification, unless otherwise limited, includes transmitting and receiving, including Device to Reader (D2R) transmission and Reader to Device (R2D) transmission.

[0122] 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 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.

[0123] 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 store temporary information without losing the stored temporary information due to power loss in the mode.

[0124] 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.

[0125] 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.

[0126] FIG. 4 illustrates a flowchart of a method performed by a first device according to various embodiments of the present disclosure.

[0127] Referring to FIG. 4, at S401, N transmissions corresponding to one signaling are determined based on information related to charging of the first device, where N is an integer greater than or equal to 1. At S402, it is determined to transmit, to a second device, an n-th part or at least one part of the one signaling in each and / or an n-th transmission of the N transmissions (for example, one transmission includes all or a part of bits of one signaling) based on the information related to charging of the first device, where n is a positive integer less than or equal to N. At S403, a transmission resource corresponding to the n-th transmission is determined. At S404, the n-th transmission is performed on the transmission resource.

[0128] 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.

[0129] FIG. 5 illustrates a flowchart of a method performed by a second device according to various embodiments of the present disclosure.

[0130] Referring to FIG. 5, at S501, at least one part of one signaling is received from a first device in an n-th transmission of N transmissions corresponding to the one signaling, where the N transmissions are determined based on information related to charging of the first device, and where N is an integer greater than or equal to 1, and n is a positive integer less than or equal to N. At S502, the one signaling is received based on the at least one part of the one signaling.

[0131] Optionally, the above method further includes: segmenting the one signaling into one or M sub-signaling, where M is an integer greater than 1; it is determined that one transmission corresponds to one sub-signaling or N sub-signaling, where N is an integer greater than 1. Optionally, the method further includes: acquiring one or more transmission resources corresponding to one or more sub-signaling.

[0132] Optionally, the sub-signaling includes at least one of: RLC SDU and / or RLC PDU segmented by an RLC layer and / or other forms of RLC layer sub-signaling, MAC SDU and / or MAC PDU and / or MAC CE of a MAC layer and / or other forms of MAC layer sub-signaling, physical layer sub-signaling segmented by a PHY layer.

[0133] 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.

[0134] Optionally, the information of the device related to charging includes at least one of:

[0135] a battery capacity;

[0136] 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;

[0137] 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;

[0138] 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;

[0139] 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;

[0140] 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;

[0141] 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;

[0142] (whether) the device has been charged and includes receiving AIoT transmissions and being charged at the same time, and / or (whether) the device has been charged and includes transmitting AIoT transmissions and being charged at the same time, and / or (whether) the device is to be charged and includes receiving AIoT transmissions and being charged at the same time, and / or (whether) the device is to be charged and includes transmitting AIoT transmissions and being charged at the same time; being charged includes receiving at least one wireless signal that may be used as the charging signal;

[0143] 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;

[0144] 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.

[0145] Optionally, the UE capabilities related to charging include at least one of:

[0146] 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;

[0147] a UE capability corresponding to the charging efficiency of the device;

[0148] a UE capability related to whether the device supports at least one of the sleep mode, the on mode, the off mode;

[0149] 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;

[0150] 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;

[0151] a UE capability corresponding to the power consumption of the device.

[0152] 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.

[0153] Optionally, the information of the AIoT transmission related to charging includes at least one of:

[0154] 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;

[0155] 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;

[0156] 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.

[0157] 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.

[0158] 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.

[0159] 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.

[0160] 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.

[0161] In the following method, if one signaling is not segmented into sub-signaling, or is segmented into one sub-signaling (that is, the sub-signaling is not actually segmented), a length, a maximum length, a transmission time, a maximum transmission time, etc. corresponding to one sub-signaling in various embodiments in the present specification (parameters corresponding to the sub-signaling that are present in the present specification are all applicable and are not limited to parameters listed here) can also be replaced by corresponding parameters corresponding to one signaling. For example, the maximum length of sub-signaling into which one signaling is segmented can also be replaced by the maximum length of one signaling, etc., which will not be explained everywhere.

[0162] In the following embodiments, the transmission time (including maximum / minimum transmission time) may also be replaced by a time of the on mode (including maximum / minimum time).

[0163] Optionally, the device and / or reader, based on at least one of the following, determines whether to segment one signaling into one or more sub-signaling, and / or determines the length or the maximum (and / or minimum) length of the sub-signaling into which one signaling is segmented, and / or determine the transmission time or the maximum (and / or minimum) transmission time corresponding to the sub-signaling into which one signaling is segmented; optionally, determining whether to segment the signaling into one or more sub-signaling includes segmenting the signaling into multiple sub-signaling when the length of the signaling exceeds the maximum (and / or minimum) length and / or segmenting the signaling into multiple sub-signaling when the transmission time of the signaling exceeds the maximum (and / or minimum) transmission time; and / or, optionally, the device and / or reader, based on at least one of the following, determines to transmit all or a part of bits in one signaling, and / or determines a number of bits or the maximum number of bits when transmitting a part of bits in one signaling, and / or determine the transmission time or the maximum (and / or minimum) transmission time corresponding to transmission of all or a part of bits in one signaling; optionally, determining to transmit all or a part of bits in one signaling includes transmitting a part of the bits in one signaling when a number of the bits in the signaling exceeds the corresponding number of bits or the maximum number of bits, and / or when the transmission time corresponding to all bits of one signaling exceeds the maximum (and / or minimum) transmission time, a part of the bits in the signaling is transmitted:

[0164] whether it is configured / preconfigured to enable the characteristic of segmenting one signaling into one or more sub-signaling, and / or whether it is configured / preconfigured with a length or maximum length of sub-signaling into which one signaling is segmented; it may be configured by UE capabilities and / or based on information related to charging or energy of the device. The configuration further includes at least one of the device and / or reader being configured by the base station, the device being configured by the reader;

[0165] whether the reader indicates, in signaling transmitted to the device, that the characteristic of segmenting one signaling into one or more sub-signaling is enabled and / or whether the device indicates, in signaling transmitted to the reader, that the characteristic of segmenting one signaling into one or more sub-signaling is enabled; and / or whether the reader indicates in the signaling transmitted to the device and / or whether the device indicates in the signaling transmitted to the reader the length or the maximum (and / or minimum) length of the sub-signaling into which one signaling is segmented;

[0166] a battery capacity of the device, which may be determined by the UE capabilities. 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;

[0167] charging efficiency of the device, which may be determined by UE capabilities. 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;

[0168] whether the device supports the sleep mode, which may be determined by UE capabilities;

[0169] 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;

[0170] 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;

[0171] 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, which may be determined by UE capabilities. 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 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, 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; the speed may be determined by UE capabilities;

[0172] the device having been charged and can receive AIoT transmissions and be charged at the same time, and / or the device having been charged and can transmit AIoT transmissions and be charged at the same time, and / or the device is to be charged and can receive AIoT transmissions and be charged at the same time, and / or the device is to be charged and can transmit AIoT transmissions and be charged at the same time; having been charged includes receiving at least one wireless signal that may be used as the charging signal;

[0173] 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; 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;

[0174] whether there is a frequency domain offset between a frequency domain position of the charging signal and the AIoT transmission. 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;

[0175] 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. 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 x% 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;

[0176] power consumption of the device, which may be determined by UE capabilities; 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.

[0177] Optionally, the device reports the UE capability corresponding to at least one of the above items related to the segmentation of one signaling into one or more sub-signaling to the reader; and / or, the reader acquires from the device, including acquiring based on information reported by the device, the UE capability corresponding to at least one of the above items; and / or, when the reader does not acquire the UE capability corresponding to at least one of the above items from the device, it uses a default value of the UE capability corresponding to at least one of the above items.

[0178] Optionally, regarding the above configured and / or indicated characteristics of segmenting one signaling into one or more sub-signaling, the length or maximum (and / or minimum) length of the sub-signaling into which one signaling is segmented further includes characteristics and / or lengths corresponding to D2R signaling and / or R2D signaling, and D2R and R2D may be configured / indicated separately. For example, the reader indicates, in the R2D signaling, that the characteristic of segmenting D2R signaling into multiple sub-signaling is enabled and indicates the maximum (and / or minimum) length of the segmented sub-signaling.

[0179] 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. 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, the signal strength of at least one or each charging signal). The signal strength may be determined by measurements of the charging signal and / or the D2R signal and / or the R2D signal including: being determined by the device through measurement of the charging signal; and / or at least in scenarios where the reader transmits a charging signal to the device, being determined by the device through measurement of the R2D signal, 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; and / or at least in scenarios where the reader transmits a charging signal to the device, being determined by the reader through measurement of the D2R signal, 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. The signal strength may be determined by at least one of (including measurement of at least one of): an RSRP, an RSSI, a path loss, indication information on the strength or strength range of the charging signal.

[0180] Optionally, the device determines the energy of the device based on at least one of:

[0181] a remaining energy determined by the internal module;

[0182] 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;

[0183] 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;

[0184] 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.

[0185] 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.

[0186] 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.

[0187] Optionally, the availability time of the device further includes a time for which transmission and / or reception can be performed, and / or a time that can be used for the sleep mode, and / or a time for which timing can be maintained. In various embodiments of the present specification, the availability time of the device may also be replaced by a time of the on mode of the device.

[0188] Optionally, the availability time (which may be a maximum or minimum availability time) of the device is determined by at least one of:

[0189] 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;

[0190] 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;

[0191] 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.

[0192] 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.

[0193] 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.

[0194] Optionally, the device reports to the reader whether it can complete the D2R transmission and / or whether it can complete the R2D reception. Further, it may be indicated by an explicit field in the D2R transmission, and / or by the presence or absence of and / or information bits carried in a preamble / midamble / postamble of the D2R transmission.

[0195] 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.

[0196] 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.

[0197] 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.

[0198] Optionally, the reader determines whether the device is available, including at least one of:

[0199] 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;

[0200] 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.

[0201] 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.

[0202] 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:

[0203] UE capabilities, optionally, the method is used when the device is assumed to be fully charged or has received a charging signal;

[0204] being preset or configured, optionally, the method is used when the device is assumed to be fully charged or has received a charging signal;

[0205] 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.

[0206] 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 Cyclic Redundancy Check (CRC), Forward Error Correction (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.

[0207] 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.

[0208] Optionally, the device and / or the reader determines a first number of bits of the device based on the above method, and further determines a second number of bits based on the first number of bits. Optionally, the first number of bits is a number of (available) bits of the physical layer, and the second number of bits is a number of (available) bits of the higher layer. Optionally, the second number of bits is the first number of bits 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.

[0209] Optionally, the device or reader determining that one transmission includes all or a part of bits in one signaling includes at least one of:

[0210] determining that one transmission includes no more than K1 bits in one signaling based on the first number of bits K1 of the device; if the number of bits included in the signaling is greater than K1, one transmission may include a part of the bits of the signaling, otherwise, one transmission may include all bits of the signaling, or a part of the bits of the signaling (for example, one transmission may also carry several bits of other signaling, resulting in failure of transmitting all bits of the signaling); optionally, the method is performed by a physical layer of the device and / or reader;

[0211] determining that one transmission includes no more than K1' bits in one signaling based on the first number of bits K1 of the device, where K1' is a number of information bits of the higher layer, K1' + X does not exceed the first number of bits K1, X corresponds to a number of bits of at least one other payload such as CRC, FEC, and signal header; if the number of information bits of the higher layer included in the signaling is greater than K1', one transmission may include a part of bits of the signaling, otherwise one transmission may include all bits of the signaling, or include a part of bits in the signaling; optionally, the method is performed by a higher layer of the device and / or reader;

[0212] determining that one transmission includes no more than K2 information bits delivered to the physical layer by the higher layer in one signaling based on the second number of bits K2 of the device; optionally, it also includes that the physical layer of the device and / or reader performs at least one of adding a signal header, adding CRC, adding control information, performing linear encoding and / or FEC encoding and the like for each transmission or at least one transmission; if the number of information bits of the higher layer included in the signaling is greater than K1', one transmission may include a part of bits of the signaling; otherwise one transmission may include all bits of the signaling, or include a part of bits of the signaling; optionally, the method is performed by a physical layer of the device and / or reader;

[0213] determining that one transmission includes no more than K2 information bits of the higher layer in one signaling based on the second number of bits K2 of the device; if the number of information bits of the higher layer included in the signaling is greater than K1', one transmission may include a part of bits of the signaling; otherwise one transmission may include all bits of the signaling, or include a part of bits of the signaling; optionally, the method is performed by a higher layer of the device and / or reader.

[0214] Optionally, the device or reader segments one signaling into one or M sub-signaling based on the number of available bits of the device, including at least one of the following (the following methods may all determine whether to segment into M sub-signaling based on whether the number of bits included in the signaling exceeds a number of bits of the physical layer / higher layer, and the methods are similar to the device or reader determining that one transmission includes all or a part of bits in one signaling, and the description is not repeated everywhere):

[0215] segmenting one signaling into one or M sub-signaling based on the first number of bits of the device, where a number of bits included in each sub-signaling does not exceed the first number of bits; optionally, the method is performed by a physical layer of the device and / or reader;

[0216] segmenting one signaling into one or M sub-signaling based on the first number of bits of the device, where a number of information bits of the higher layer included in each sub-signaling plus X does not exceed the first number of bits, and X corresponds to a number of bits of at least one other payload such as CRC, FEC, signal header; optionally, the method is performed by a higher layer of the device and / or reader;

[0217] segmenting one signaling into one or M sub-signaling based on the second number of bits of the device, where a number of information bits of the higher layer included in each sub-signaling does not exceed the second number of bits; optionally, it also includes that the physical layer of the device and / or reader performs at least one of adding a signal header, adding CRC, adding control information, linear encoding and / or FEC encoding and the like for each sub-signaling or at least one sub-signaling; optionally, the method is performed by a physical layer of the device and / or reader;

[0218] segmenting one signaling into one or M sub-signaling based on the second number of bits of the device, where a number of information bits of the higher layer included in each sub-signaling does not exceed the second number of bits; optionally, the method is performed by a higher layer of the device and / or reader.

[0219] 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.

[0220] 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, an 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, an 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.

[0221] Optionally, the device and / or reader segmenting one signaling into one or M sub-signaling includes that the segmentation is performed by a higher layer and / or a physical layer, where the higher layer further includes an application layer, and / or an RLC layer, and / or a MAC layer. The segmentation performed by the RLC layer may multiplex slicing and reassembly techniques in NR communication, and determine how to perform the segmentation based on energy-related parameters; for example, the length and / or the maximum (and / or minimum) length L of the segmented sub-signaling is determined, and / or a start bit and / or an end bit of the segmented sub-signaling is determined. However, the flexibility of the method is weaker than the method of performing the segmentation by the physical layer, and the RLC layer may not have the related parameters of the physical layer and information of UE capabilities, so it is difficult to flexibly adjust the slicing method according to transmission parameters of the physical layer and the signaling size corresponding to capabilities of the target UE (which may be a device or reader). The segmentation performed by the MAC layer may segment one signaling into one or M sub-signaling based on the MAC payload such as MAC CE and / or MAC SDU; for example, one or more MAC CEs and / or MAC SDUs are segmented into one sub-signaling, and further, into one sub-signaling with a length not exceeding L; and / or a MAC CE or MAC SDU with a length exceeding L is segmented into multiple sub-signaling. The advantage of the method is that the content of each slice can include the complete MAC CE and MAC SDU as much as possible, thereby facilitating the decoding of multiple sub-signaling and the complexity and reliability of reassembling them into complete signaling. The segmentation performed by the physical layer may relatively dynamically determine the length L of the sub-signaling based on the dynamic transmission status of the physical layer (for example, physical layer parameters such as remaining energy, linear encoded codewords and / or code rate, rate of D2R or R2D signals, and for specific methods, refer to other embodiments in the present specification), and segment the information bits provided to the physical layer by the higher layer or the information bits of the physical layer into several sub-signaling with a length not exceeding L.

[0222] Optionally, the device and / or reader segmenting one signaling into one or M sub-signaling includes determining the length and / or the maximum (and / or minimum) length L of the segmented M sub-signaling based on methods in other embodiments in the present specification. Further, the number of bits for transmission and / or reception determined by the methods in other embodiments may be used as the length and / or the maximum (and / or minimum) length L of M sub-signaling, or based on which, the length and / or the maximum (and / or minimum) length L of M sub-signaling may be determined.

[0223] For the method of segmenting one signaling into one or M sub-signaling based on the length L of the sub-signaling, optionally, one signaling is segmented into M sub-signaling each having a length not exceeding L, and further, including at least one of:

[0224] determining M to be an integer not less than L0 / L according to the length L0 of the signaling, and further, M may be the smallest integer not less than L0 / L, that is, L0 / L is rounded up;

[0225] segmenting the signaling equally into M sub-signaling with a length not exceeding L;

[0226] segmenting one signaling into several sub-signaling with a length of L, and if the signaling still has information bits with a length greater than 0 and not exceeding L, using the remaining part as one segmented sub-signaling, and letting the length of the sub-signaling be the length of the remaining information bits, or continuing to segment the remaining part into sub-signaling with a length of L, with the part with a length less than L supplemented by adding padding.

[0227] The length may refer to a length of information bits, or when other payloads such as CRC, signal header, midamble / preamble are added to the sub-signaling, it may also refer to the length of the information bits after the payloads are added.

[0228] Optionally, the device and / or reader performs, for each segmented sub-signaling, at least one of:

[0229] transmitting and / or receiving a preamble or midamble corresponding to the sub-signaling before the sub-signaling;

[0230] transmitting and / or receiving a signal header corresponding to the sub-signaling before the sub-signaling;

[0231] transmitting and / or receiving (or detecting) a postamble corresponding to the sub-signaling after the sub-signaling;

[0232] transmitting and / or receiving (or detecting) CRC corresponding to the sub-signaling after the sub-signaling, or adding the corresponding CRC to the sub-signaling.

[0233] Optionally, in case that one signaling is segmented into several sub-signaling, the device and / or reader adds CRC to the signaling, and / or to a set of all the several sub-signaling, and / or transmits and / or receives a preamble or midamble corresponding to the one signaling before the set, and / or transmits and / or receives a postamble corresponding to the one signaling after the set, and / or transmits and / or receives a signal header corresponding to the one signaling before the set.

[0234] Optionally, for the method of segmenting one signaling into one or M sub-signaling, where M is an integer greater than 1, and the method of determining that one transmission corresponds to one sub-signaling or corresponds to N sub-signaling, where N is an integer greater than 1, it also includes that the device and / or reader determines one or more transmission resources corresponding to one signaling, and / or determines resources corresponding to at least one transmission of one sub-signaling or corresponding to N sub-signaling. Further, it includes that the device acquires the above transmission resources through the information indicated in the signaling transmitted by the reader, and / or the reader acquires the above transmission resources through the information indicated in the signaling transmitted by the device, and / or the device determines the above transmission resources and indicates the same to the reader through signaling, and / or the reader determines the above transmission resources and indicates the same to the device through signaling.

[0235] Optionally, determining the above one or more transmission resources and / or resources for at least one transmission includes at least determining time domain resources, and may also include determining frequency domain resources; optionally, at least one of the following methods is included:

[0236] determining several transmission resources, where each transmission resource corresponds to one transmission (which may be one transmission corresponding to multiple sub-signaling or one transmission corresponding to a part / all of bits in one signaling). Further, the determined time domain interval between two adjacent transmission resources (specifically, the time domain interval between the end position of the previous transmission resource and the start position of the next transmission resource) is greater than a first threshold, and / or the determined several transmission resources are in a given time range. Optionally, the given time range corresponds to a time range between the earliest time point and the latest time point when the device and / or reader can perform AIoT transmissions;

[0237] determining a time range, and selecting resources for transmission in the time range, and further, perform the transmission according to energy conditions and / or an on / sleep / off mode. For example, on any resource in the time range, when the energy of the device exceeds the threshold, the device may perform AIoT transmissions on the resource, otherwise the device does not perform AIoT transmissions; accordingly, the reader performs AIoT transmissions throughout the time frame. In one specific example, the time range is [T1, T2], in which the reader transmits R2D transmissions, including transmitting multiple repetitions of the R2D transmissions; the device receives R2D transmissions when the energy exceeds the threshold, until the energy falls below the threshold, and then enters the sleep mode and acquires energy through RF energy harvesting, and enters the on mode from the sleep mode and receives R2D transmissions when the energy exceeds the threshold again, and repeats the process until the device successfully receives R2D transmissions or [T1, T2] ends. In another specific example, the time range is [T1, T2], in which the device transmits D2R transmission when the energy exceeds the threshold, until the energy falls below the threshold, and then enters the sleep mode and acquires energy through RF energy harvesting, and enters the on mode from the sleep mode and transmit D2R transmissions when the energy exceeds the threshold again, and repeats the process until the signaling / sub-signaling corresponding to the D2R transmissions is transmitted; the reader remains receiving for [T1, T2];

[0238] determining at least one transmission resource, which corresponds to the total number of bits of signaling, and / or corresponds to all sub-signaling, and / or corresponds to the maximum / minimum time for the device to perform transmission, and / or corresponds to the maximum / minimum time of the on state; optionally, the device performs AIoT transmissions on the transmission resource until the transmission is completed or the energy is exhausted (including entering sleep mode based on the energy status so no longer performing transmission); and / or the reader performs AIoT transmissions on the transmission resource until the end of the resource.

[0239] Optionally, the method of determining a time range, selecting resources for transmission in the time range, and further performing the transmission according to energy conditions and / or the on / sleep / off mode further includes: in the time range, an interval between two consecutive transmissions (referring to logically consecutive, and there may be a transmission interval between two transmissions physically), specifically an interval between the end position of the previous transmission and the start position of the subsequent transmission, the time domain length does not exceed a predetermined threshold T. The threshold T may be used by the receiving node to determine whether there are still transmissions in the time range. For example, if the receiving node receives a transmission and does not detect another transmission in the time T after the transmission ends, it is considered that the transmitting node has completed its transmission in the time range, and the receiving node may stop receiving behavior without waiting for the end of the time range.

[0240] Optionally, if one signaling corresponding to AIoT transmissions is segmented into one or M sub-signaling, and / or one transmission corresponds to one sub-signaling or corresponds to N sub-signaling, the device and / or reader indicates related information including at least one of information such as information on whether to segment signaling into sub-signaling, the size of the sub-signaling (such as the maximum / minimum number of bits), the number of sub-signaling corresponding to one transmission and the like in at least one of: R2D signaling (e.g., R2D signaling used to trigger inventory / command procedures and indicate inventory / command related information, like Query), R2D control information or D2R control information of the physical layer, D2R signaling in inventory procedures (e.g. D2R signaling used by the device to preempt access occasions or indicate its own ID in inventory procedures, like RN16), signaling headers, preambles of R2D / D2R signaling.

[0241] For the first threshold in the above embodiments, its value may be preset and / or configured, or may be determined based on the capability related to charging of the UE (as shown in other embodiments), or may be determined based on at least one of the size of the previous transmission resource and / or the next transmission resource, the number of bits that the device can transmit and / or receive on the previous transmission resource and / or the next transmission resource, the energy that the device may consume on the previous resource and / or the next transmission resource. The energy that the device may consume on the previous resource and / or the next transmission resource may be determined by the time length of the transmission resource and the power consumption of the device, or may be determined by the minimum time for the device to enter the on mode and the power consumption of the device. The first threshold may correspond to a time interval in which the device is charged to supplement energy after receiving / detecting or transmitting on the previous transmission resource and consuming the energy; and / or a time interval in which the device is to be pre-charged before receiving / detecting or transmitting on the next transmission resource and consuming the energy.

[0242] In a specific example, the reader schedules D2R transmission resources for the device, and after scheduling an earlier transmission resource, determines the number of bits corresponding to the D2R transmission that the device may transmit on the previous resource (which may be the maximum number of bits / minimum number of bits) based on information such as the time domain length of the transmission resource, the rate of the D2R device, the code rate of linear encoding, and the code chip length (with linear encoding / nonlinear encoding), and determines the possible power consumption E1 of the device on the previous resource accordingly; and / or determines the possible power consumption E1 of the device on the previous resource based on the time domain length of the transmission resource and the power consumption of the device (which may be a typical value of the power consumption when the device transmits a D2R transmission). Accordingly, the reader determines that the next transmission resource is at least after a time greater than Tthres1 has elapsed from the end position of the previous transmission resource, where Tthres1 corresponds to the length of time for which the device can acquire energy of at least E1 through RF energy harvesting. In another specific example, the reader schedules D2R transmission resources for the device, and after scheduling an earlier transmission resource, determines the number of bits corresponding to the D2R transmission that the device can transmit on the next resource (which may be the maximum number of bits / minimum number of bits) based on information such as the time domain length of the transmission resource, the rate of the D2R device, the code rate of linear encoding, and the code chip length (with linear encoding / non-linear encoding), and determines the possible power consumption E2 of the device on the next resource accordingly; and / or determines the possible power consumption E2 of the device on the next resource based on the time domain length of the transmission resource and the power consumption of the device (which may be a typical value of the power consumption when the device transmits a D2R transmission). Accordingly, the reader determines that the next transmission resource is at least after a time greater than Tthres2 has elapsed from the end position of the previous transmission resource, where Tthres2 corresponding to the length of time for which the device can acquire energy of at least E2 through RF energy harvesting; alternatively, if the reader further determines the remaining energy E3 after the device ends its transmission on the previous transmission resource (which may be calculated by the battery capacity of the device and / or the possible power consumption E1 of the device on the previous transmission resource), Tthres2 corresponds to the length of time for which the device can acquire energy E4 through RF energy harvesting and E4+E3 is greater than or equal to E2.

[0243] Optionally, if one signaling corresponding to AIoT transmissions is segmented into one or M sub-signaling, at least one of the following is performed:

[0244] adding an segmentation end indicator in or after the last sub-signaling;

[0245] adding a segmentation unend indicator in or after sub-signaling other than the last sub-signaling;

[0246] indicating a value of M in at least one (specifically, the first) sub-signaling;

[0247] indicating an index of sub-signaling in at least one (specifically, each) sub-signaling, where the index may indicate the order of the sub-signaling in a total of M sub-signaling.

[0248] The segmentation end / segmentation unend indicator may be an explicit field (for example, 1 bit) or an implicit indication (for example, a specific preamble / midamble / postamble).

[0249] Optionally, when transmitting at least one signaling, and / or when transmitting at least one sub-signaling, the number of bits corresponding to the signaling and / or sub-signaling is indicated in its signal header or control information.

[0250] Optionally, when transmitting one transmission or one signaling, multiple repetitions of the transmission / signaling are transmitted; the multiple repetitions may be used for decoding and powering. Accordingly, when one transmission or one signaling is received, at least one repetition of the transmission / signaling is decoded to perform reception, and / or no reception or transmission is performed in the time range of at least one repetition of the transmission / signaling, and charging may be performed by the transmission / signaling. Further, at least for R2D transmissions, the method is used.

[0251] In the technical method of the present specification, the device and / or reader may indirectly calculate or determine parameters that affect transmission such as the availability time of the device and the corresponding signaling length, but changes in physical factors such as changes in the coverage of the charging signal, parameter changes in physical layer transmission, etc., and inaccuracies in the estimation of a part of the capabilities such as inaccurate (remaining) energy of the device, deviations between the typical value of the parameter corresponding to the capability of the device and the actual value of the parameter, may result in errors between the determined value of the parameter affecting the transmission and the actual situation, and may result in inconsistencies between the value of the parameter determined by the reader and the value of the parameter determined by the device. Therefore, corresponding processing methods need to be reintroduced to calibrate the determined values of parameters.

[0252] Due to energy limitations, the device may not be able to complete the transmission of all the contents of the signaling in one transmission, but due to potential errors in the determined values of parameters, both the device and the reader may not know in an accurate and aligned method which contents of the signaling have been successfully transmitted. Therefore, it is necessary to design a scheme to indicate information related to transmission of a part of signaling, such that the transmission of the remaining information is completed based on the indication. In addition, the potential errors in the determined values of parameters may also cause the device to fail to successfully transmit / receive a part of the signaling, and a corresponding retransmission mechanism needs to be designed.

[0253] In the following embodiments, the first node may be one of a device and a reader, and the second node may be the other of the device and the reader.

[0254] Optionally, the first node transmits an AIoT transmission to the second node, and the second node receives the AIoT transmission and determines whether all contents of signaling corresponding to the AIoT transmission has been received, and performs at least one of:

[0255] if all contents of the signaling corresponding to the AIoT transmission are received, transmitting confirmation signaling to the first node;

[0256] if all contents of the signaling corresponding to the AIoT transmission are received and correctly decoded, transmitting confirmation signaling to the first node;

[0257] if all contents of the signaling corresponding to the AIoT transmission have not been received, or are not correctly decoded, not transmitting confirmation signaling to the first node;

[0258] if all contents of the signaling corresponding to the AIoT transmission have not been received, transmitting, to the first node, information related to contents that have been successfully received and / or information related to contents that have not been received, including at least one of: the number of bits that have been successfully received and / or have not been received, information of a start position of bits that need to be continued to be transmitted (for example, an index of a start bit among multiple bits that need to be continued to be transmitted), the number of sub-signaling that has been successfully received and / or has not been received, information of at least one (the earliest one) of sub-signaling that needs to be continued to be transmitted (such as an index of the sub-signaling), information related to fields that have been successfully received and / or have not been received, information of fields that need to be continued to be transmitted (for example, information of a start field among multiple fields that need to be continued to be transmitted, where different fields may be distinguished by indexes).

[0259] Optionally, the information related to contents that have been successfully received and / or the information related to contents that have not been received is transmitted by the second node to the first node as retransmission indication information, that is, the second node schedules the first node to retransmit at least a part of the signaling corresponding to the AIoT transmission by indicating the information.

[0260] Optionally, the second node transmits, to the first node, the retransmission indication information including the above information related to contents that have been successfully received and / or information related to contents that have not been received, and / or including information related to retransmission based on whether the decoding is successful. For example, the retransmission indication information indicates information related to contents that have not been received and information related to contents that need to be retransmitted when decoding fails.

[0261] The confirmation signaling may be indicated through at least one of HARQ-ACK, ARQ-ACK, physical layer signaling dedicated to confirming the above cases (which may be UCI, (a specific type of) a preamble / midamble / postamble, WUS (including WUS signals used to wake up the device and / or WUS signals dedicated to confirming the above cases)), and MAC CE dedicated to confirming the above cases (other information may also be indicated in the MAC CE).

[0262] All the contents includes all information bits corresponding to the signaling and / or all sub-signaling corresponding to the signaling. The determining of whether all contents of the signaling corresponding to the AIoT transmission are received includes at least one of:

[0263] whether a segmentation end indicator is received when receiving the transmission or whether a segmentation unend indicator is no longer received;

[0264] whether all sub-signaling corresponding to the signaling is received, which may be determined by an indication related to the value of M and / or the index of sub-signaling;

[0265] whether information bits corresponding to the number of bits of the signaling / sub-signaling are received, where the number of bits of the signaling / sub-signaling may be indicated in the transmission of the signaling / sub-signaling (e.g., the methods shown in other embodiments of the present specification), and may also be preset / configured, for example, when both the first node and the second node know the type of the signaling (such as EPC, Query-similar signaling, specific command signaling, etc.), the number of bits of the signaling is determined by the type of the signaling (for example, the number of bits of EPC is preset / configured to be 100 bits);

[0266] whether CRC check is passed, further including whether the received sub-signaling passes the CRC check, and / or whether total CRC check of the signaling can be passed when processing the received contents as all corresponding bits of the signaling with CRC.

[0267] Optionally, the method is used if the transmission transmits a part of the bits of one signaling and / or a part of the sub-signaling corresponding to one signaling.

[0268] In the above embodiments, a method for retransmitting or transmitting the remaining untransmitted information after the previous transmission based on the indication is mainly provided. In another exemplary embodiment, since the first node can determine the information it has transmitted and the information it fails to transmit, and the second node can determine the information it has received and the information it fails to receive, when the first node starts the next transmission (carrying the remaining untransmitted information) again after completing at least one transmission corresponding to the signaling, it transmits from the information it fails to transmit, the second node processes it accordingly as the information remaining after the information it has received in the previous transmission, without additional indications. In a specific example, for the transmission of one signaling, the first node transmits X information bits in the first transmission, then stops transmitting and starts charging since the energy is lower than the threshold, and continues to transmit from the (X+1)-th information bit after the charging is completed; accordingly, the second node receives X bits in the first transmission, and processes the first bit in the second transmission as the (X+1)-th bit of the signaling when it receives the second transmission. Optionally, the method in the embodiment is used when the first node is a device and the second node is a reader.

[0269] The advantage of the method is that the overhead caused by the indications is reduced, but due to the uncertainty of the wireless network environment, there may be a deviation in the knowledge of the already transmitted / remaining information for both the first node and the second node, for example, the first node transmits 240 bits in the first transmission but the second node only decodes 239 bits, so there may be problems in the subsequent processing of the transmission of the remaining information, resulting in the method being less reliable than the method of transmission based on the indication. An optimized approach may also be used for the problem.

[0270] In another exemplary embodiment, when the first node starts the next transmission (carrying the remaining untransmitted information) again after completing at least one transmission corresponding to the signaling, it transmits from the start bit of the sub-signaling where the information that it fails to transmit is located. Accordingly, the second node processes the start position of the received information as the start position of the earliest one of the remaining sub-signaling without additional indications. In a specific example, for a transmission of signaling segmented into M sub-signaling, the first node transmits X information bits in the first transmission that include m complete sub-signaling and a part of information bits of the (m+1)-th sub-signaling, and then stops transmitting and starts charging since the energy is lower than the threshold. After the charging is completed, the first node continues to transmit from the start information bit of the (m+1)-th sub-signaling. Accordingly, when receiving the second transmission, the second node processes the first bit in the second transmission as the start information bit of the (m+1)-th sub-signaling. For the sub-signaling in the method, it may also be replaced by other units, for example, segmenting every K bits in the signaling into a bit set, and replacing the sub-signaling with the bit set. Optionally, the method in the embodiment is used when the first node is a device and the second node is a reader. The method introduces a certain degree of redundancy compared to the previous non-indication-based method, but can improve the reliability of the transmission.

[0271] When the number of bits corresponding to the transmission resource is greater than the number of actually transmitted bits, and / or the time domain length of the transmission resource is greater than the length of time that can be actually used for transmission, and / or the number of bits corresponding to the sub-signaling is greater than the number of bits that can be actually transmitted in one transmission, when the first node transmits a transmission to the second node, it may interrupt the transmission in advance due to factors such as energy exhaustion before completing the transmission. When the first node receives the transmission from the second node, it may interrupt the reception in advance. Therefore, a method of adjusting the number of bits corresponding to the transmission resource, and / or the time domain length of the transmission resource, and / or the number of bits corresponding to the sub-signaling corresponding to the scenario can be designed.

[0272] Optionally, the first node transmits a transmission to the second node, and if the second node determines that the bits actually received in the transmission are less than the number of bits corresponding to the transmission resource, and / or the end time of the transmission is earlier than the time domain length of the transmission resource, and / or the number of bits corresponding to the actually received sub-signaling is less than the number of bits corresponding to the expected sub-signaling, and / or the second node has not received all contents of the signaling corresponding to the AIoT transmission, then when the second node subsequently determines the transmission resource for the first node, it determines a transmission resource with a smaller time domain length, and / or a transmission resource corresponding to a smaller number of bits, and / or indicates the number of bits corresponding to the sub-signaling and indicates a lower value, and / or the second node indicates to the first node information related to the case that the actual reception situation does not comply with the properties of the resource or sub-signaling (optionally, the actual reception situation may also be indicated, such as the time length of the actually received transmission / the number of bits of the actually received sub-signaling), where the indication may be used to indicate the first node to adjust the size of the transmission resource and / or the number of bits of the sub-signaling.

[0273] Optionally, the first node receives the transmission transmitted by the second node, and if the first node determines that the bits actually received in the transmission are less than the number of bits corresponding to the transmission resource, and / or the time for ending the reception of the transmission is earlier than the time domain length of the transmission resource, and / or the number of bits corresponding to the actually received sub-signaling is less than the number of bits corresponding to the expected sub-signaling, and / or the first node has not received all contents of the signaling corresponding to the AIoT transmission, then when the first node subsequently determines the transmission resource for the second node, it determines a transmission resource with a smaller time domain length, and / or a transmission resource corresponding to a smaller number of bits, and / or indicates the number of bits corresponding to the sub-signaling and indicates a lower value, and / or the first node indicates to the second node information related to the case that the actual reception situation does not comply with the properties of the resource or sub-signaling (optionally, the actual reception situation may also be indicated, such as the time length of the actually received transmission / the number of bits of the actually received sub-signaling), where the indication may be used to indicate the second node to adjust the size of the transmission resource and / or the number of bits of the sub-signaling, and the indication may be carried in a corresponding indication of information related to retransmission, and / or related to contents that have been successfully received, and / or related to contents that have not been received.

[0274] When the number of bits corresponding to the transmission resource is less than the number of actually transmitted bits, and / or the time domain length of the transmission resource is less than the length of time that can be actually used for transmission, and / or the number of bits corresponding to the sub-signaling is less than the number of bits that can be actually transmitted in one transmission, when the first node transmits or receives a transmission to or from the second node, it may still have available energy after completing the transmission / reception. Therefore, the transmission / reception may be ended without additional processing, and a method for adjusting the number of bits corresponding to the transmission resource, and / or the time domain length of the transmission resource, and / or the number of bits corresponding to the sub-signaling corresponding to the scenario can also be designed.

[0275] Optionally, the first node transmits a transmission to the second node, and if the first node determines that there is still energy that can be used to continue transmitting and / or receiving after completing the transmission, and / or the first node has not transmit all contents of the signaling corresponding to the AIoT transmission, the first node continues to transmit the remaining information of the signaling (optionally, the start position of the continued transmission is physically continuous with the completed transmission, and / or the interval between the start position of the continued transmission and the end position of the completed transmission is smaller than a predetermined threshold), and / or indicates to the second node information related to the case that the actual transmission situation does not comply with the properties of the resource or sub-signaling (optionally, the actual transmission situation may also be indicated, such as the time length of the transmission that is actually transmitted or can be further continued to be transmitted / the number of bits of the sub-signaling that is actually transmitted or can be further continued to be transmitted), where the indication may be used to indicate the second node to adjust the size of the transmission resource and / or the number of bits of the sub-signaling (which may be determined for the first node).

[0276] Optionally, the first node receives the transmission transmitted by the second node, and if the first node determines that there is still energy that can be used to continue transmitting and / or receiving after completing the reception, and / or the first node has not received all contents of the signaling corresponding to the AIoT transmission, the first node continues to receive the remaining information of the signaling, and / or indicates to the second node information related to the case that the actual reception situation does not comply with the properties of the resource or sub-signaling (optionally, the actual transmission situation may also be indicated, such as the time length of the transmission that is actually transmitted or can be further continued to be transmitted / the number of bits of the sub-signaling that is actually transmitted or can be further continued to be transmitted), where the indication may be used to indicate the second node to adjust the size of the transmission resource and / or the number of bits of the sub-signaling (which may be determined for the first node). Optionally, in a scenario where the transmission transmitted by the second node to the first node is not only on the transmission resource but will be continued to be transmitted after the transmission resource ends, that is, a certain redundancy is transmitted, the method for the first node to continue to receive the remaining information of the signaling among the above methods is used.

[0277] In the above various methods of adjusting the number of bits corresponding to the transmission resource, and / or the time domain length of the transmission resource, and / or the number of bits corresponding to the sub-signaling, the content indicated in the signaling between the first node and the second node that is used to indicate the need for adjustment may be information related to the actual transmission / reception situation (as shown in the above embodiments), and it may also be an adjustment indicator, for example, 1 bit is used to indicate two states of increase / decrease and a state that does not require adjustment is indicated by not transmitting an indicator, and for another example, 2 bits are used to indicate three states of increase, decrease, and no adjustment. A node that receives the adjustment indicator may accordingly increase or decrease the number of bits corresponding to the transmission resource, and / or the time domain length of the transmission resource, and / or the number of bits corresponding to the sub-signaling to the next level. When the number of bits corresponding to the transmission resource, and / or the time domain length of the transmission resource, and / or the number of bits corresponding to the sub-signaling has several typical values (for example, the number of bits corresponding to the sub-signaling is configured as a set including {X1, X2, X3} instead of any integer between X1~X3), the method of the adjustment indicator may be used.

[0278] Optionally, if the number of bits of the sub-signaling used in the transmission between the first node and the second node is indicated in indication signaling, and / or preset or configured, and is a single value, both the first node and the second node use the value for transmission. Optionally, if the number of bits of the sub-signaling used in the transmission between the first node and the second node is indicated and / or preset / configured and includes multiple values, and / or if the number of bits is determined by the first node and / or the second node themselves according to other methods in the embodiments in the present specification, a node receiving the transmission uses the multiple values to attempt to blindly detect the received information, for example, CRC check is performed for information bits of sub-signaling corresponding to each value until they can pass the CRC check. The method describes the number of bits of the sub-signaling, and the method may also be used similarly for the length of the transmission resource and the number of bits corresponding to the transmission resource.

[0279] Optionally, if a preamble / midamble is added before the sub-signaling used in the transmission between the first node and the second node, the node receiving the transmission determines the start position of each sub-signaling based on the preamble / midamble.

[0280] FIG. 6 illustrates a block diagram of an electronic device 600 according to various embodiments of the present disclosure.

[0281] 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.

[0282] 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.

[0283] 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.

[0284] 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.

[0285] 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.

[0286] 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.

[0287] 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 information related to charging of the first device, N transmissions corresponding to one signaling, wherein N is an integer greater than or equal to 1;determining, based on the information related to charging of the first device, to transmit at least one part of the one signaling to a second device in an n-th transmission, wherein n is a positive integer less than or equal to N;determining a transmission resource corresponding to the n-th transmission; andperforming the n-th transmission on the transmission resource,wherein the information related to charging of the first device comprises at least one of information or a capability of the first device related to charging, information of a wireless transmission related to charging, or information related to at least one mode of the first device.2.The method of claim 1, wherein the information or the capability of the first device related to charging comprises at least one of: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, and / or whether the first device is to be charged and supports simultaneous wireless transmission and charging;power consumption of the first device, or a capability related to the power consumption of the first device; ora capability related to whether the first device supports the at least one mode.3.The method of claim 1, wherein the information of the wireless transmission related to charging comprises at least one of:a number of bits corresponding to at least one wireless transmission;modulation of the wireless transmission; ora transmission time corresponding to at least one wireless transmission.4.The method of claim 1, wherein the information related to the at least one mode comprises 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;an energy 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 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; orat least one offset between a start position and / or an end position of the timer corresponding to synchronization and a reference point.5.The method of claim 1, further comprising:determining, based on a first condition, whether to segment the one signaling into at least one sub-signaling; andsegmenting, based on the determination, the one signaling into the at least one sub-signaling.6.The method of claim 1, further comprising performing, based on the first condition, at least one of:determining a length or a threshold of the length of the at least one sub-signaling; ordetermining a transmission time or a threshold of the transmission time corresponding to the at least one sub-signaling, and / or determining to transmit at least one part of the one signaling, and / or determining a number of bits or a threshold of the number of bits of at least one part of the one signaling, and / or determining a transmission time or a threshold of the transmission time corresponding to at least one part of the one signaling.7.The method of claim 6, wherein the first condition comprises at least one of:whether the first device is configured or preconfigured to segment the one signaling into the at least one sub-signaling;whether the first device is configured or preconfigured with a length of the at least one sub-signaling;whether the first device is indicated by the second device to segment the one signaling into the at least one sub-signaling, or whether the first device indicates the second device to segment the one signaling into the at least one sub-signaling;a battery capacity of the first device;a charging efficiency of the first device;whether the first device supports a sleep mode;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;whether the first device supports simultaneous receiving of the wireless transmissions and charging and / or simultaneous transmitting of the wireless transmissions and charging;the first device having been charged and supporting simultaneous wireless transmission and charging, and / or the first device being to be charged and supporting simultaneous wireless transmission and charging;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;modulation of the wireless transmission; orpower consumption of the first device.8.The method of claim 7, wherein the determining whether to segment the one signaling into the at least one sub-signaling comprises at least one of:segmenting the one signaling into multiple sub-signaling when a length of the one signaling exceeds the threshold of the length; orsegmenting the one signaling into multiple sub-signaling when a transmission time of the one signaling exceeds the threshold of the transmission time.9.The method of claim 7, wherein the determining to transmit at least one part of the one signaling to the second device in the n-th transmission comprises at least one of:transmitting at least one part of the one signaling when a number of bits of the one signaling exceeds the threshold of the number of bits; ortransmitting at least one part of the one signaling when a transmission time corresponding to the one signaling exceeds the threshold of the transmission time.10.The method of claim 7, wherein the energy of the first device is determined based on at least one of:a determined remaining energy;a battery capacity of the first device;an energy harvested by the first device through charging; orat least one of a wireless reception and a wireless transmission performed by the first device.11.The method of claim 7, wherein the availability time of the first device is determined based on 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; ora time for which the first device is configured to be available.12.The method of claim 7, wherein the number of the available bits of the first device is determined based on at least one of:a capability of the first device;the first device being preset or configured with the number of the available bits of the first device; orthe availability time of the first device and a rate of the wireless transmission.13.A method performed by a second device in a wireless communication system, comprising:receiving at least one part of one signaling from a first device in an n-th transmission of N transmissions corresponding to the one signaling, wherein the N transmissions are determined based on information related to charging of the first device, and wherein N is an integer greater than or equal to 1, and n is a positive integer less than or equal to N; andreceiving the one signaling based on the at least one part of the one signaling,wherein the information related to charging of the first device comprises at least one of information or a capability of the first device related to charging, information of a wireless transmission related to charging, information related to at least one mode of the first device.14.A first device in a wireless communication system, comprising:at least one transceiver;at least one processor communicatively coupled to the at least one transceiver; andat least one memory, communicatively coupled to the at least one processor, storing instructions executable by the at least one processor individually or in any combination to cause the first device to:determine, based on information related to charging of the first device, N transmissions corresponding to one signaling, wherein N is an integer greater than or equal to 1,determine, based on the information related to charging of the first device, to transmit at least one part of the one signaling to a second device in an n-th transmission, wherein n is a positive integer less than or equal to N,determine a transmission resource corresponding to the n-th transmission, andperform the n-th transmission on the transmission resource,wherein the information related to charging of the first device comprises at least one of information or a capability of the first device related to charging, information of a wireless transmission related to charging, or information related to at least one mode of the first device.15.A second device in a wireless communication system, comprising:at least one transceiver;at least one processor communicatively coupled to the at least one transceiver; andat least one memory, communicatively coupled to the at least one processor, storing instructions executable by the at least one processor individually or in any combination to cause the second device to:receive at least one part of one signaling from a first device in an n-th transmission of N transmissions corresponding to the one signaling, wherein the N transmissions are determined based on information related to charging of the first device, and wherein N is an integer greater than or equal to 1, and n is a positive integer less than or equal to N, andreceive the one signaling based on the at least one part of the one signaling,wherein the information related to charging of the first device comprises at least one of information or a capability of the first device related to charging, information of a wireless transmission related to charging, information related to at least one mode of the first device.

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