Power-on time configured for energy harvesting devices

Abstract

Aspects of the present disclosure generally relate to wireless communications. In some aspects, a wireless device may receive a configured power-on signal. The wireless device may transmit a backscatter signal including information bits at a power-on time after starting to receive the power-on signal, or receive a command or bit. Numerous other aspects are described.

Description

Technical Field

[0001] Aspects of the present disclosure relate generally to wireless communications, and to techniques and apparatus for using energy harvesting durations. Background Art

[0002] Wireless communication systems are widely deployed to provide a variety of telecommunication services, such as telephony, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple access technologies that can support communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single carrier frequency division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and long term evolution (LTE). LTE / LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP).

[0003] A wireless network may include one or more base stations that support communications for a user equipment (UE) or multiple UEs. A UE may communicate with a base station via downlink communications and uplink communications. A "downlink" (or "DL") refers to the communication link from a base station to a UE, and an "uplink" (or "UL") refers to the communication link from a UE to a base station.

[0004] The above-mentioned multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different UEs to communicate at a city, country, region and / or global level. New Radio (NR), which may be referred to as 5G, is a set of enhancements to the LTE mobile standard promulgated by 3GPP. NR is designed to better integrate with other open standards by improving spectrum efficiency, reducing costs, improving services, utilizing new spectrum, and using orthogonal frequency division multiplexing (OFDM) (CP-OFDM) with cyclic prefix (CP) on the downlink, using CP-OFDM and / or single carrier frequency division multiplexing (SC-FDM) (also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink, and supporting beamforming, multiple input multiple output (MIMO) antenna technology and carrier aggregation, so as to better support mobile broadband Internet access. As the demand for mobile broadband access continues to increase, further improvements in LTE, NR and other radio access technologies remain useful. Summary of the invention

[0005] Some aspects described herein relate to a method of performing wireless communications by a wireless device. The method may include receiving a power-up signal. The method may include sending a backscatter signal including an information bit, or receiving a command or bit, at a power-up time after starting to receive the power-up signal, wherein the power-up time is configured.

[0006] Some aspects described herein relate to a method of performing wireless communications by a wireless device. The method may include sending a power-up signal. The method may include receiving a backscatter signal including an information bit, or sending a command or bit, at a power-up time after starting to send the power-up signal, wherein the power-up time is configured or searched.

[0007] Some aspects described herein relate to a wireless device for wireless communication. The wireless device may include a memory and one or more processors, the one or more processors coupled to the memory. The one or more processors may be configured to receive a power-on signal. The one or more processors may be configured to send a backscatter signal including an information bit, or receive a command or bit, at a power-on time after starting to receive the power-on signal, wherein the power-on time is configured.

[0008] Some aspects described herein relate to a wireless device for wireless communication. The wireless device may include a memory and one or more processors, the one or more processors coupled to the memory. The one or more processors may be configured to send a power-on signal. The one or more processors may be configured to receive a backscatter signal including an information bit, or send a command or bit at a power-on time after starting to send the power-on signal, wherein the power-on time is configured or searched.

[0009] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a wireless device. The instruction set, when executed by one or more processors of the wireless device, may cause the wireless device to receive a power-on signal. The instruction set, when executed by one or more processors of the wireless device, may cause the wireless device to send a backscatter signal including an information bit, or receive a command or bit, at a power-on time after starting to receive the power-on signal, wherein the power-on time is configured.

[0010] Some aspects described herein relate to a non-transitory computer-readable medium storing an instruction set for wireless communication by a wireless device. The instruction set, when executed by one or more processors of the wireless device, may cause the wireless device to send a power-on signal. The instruction set, when executed by one or more processors of the wireless device, may cause the wireless device to receive a backscatter signal including an information bit, or send a command or bit at a power-on time after starting to send the power-on signal, wherein the power-on time is configured or searched.

[0011] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for receiving a power-up signal. The apparatus may include means for sending a backscatter signal including an information bit, or receiving a command or bit, at a power-up time after starting to receive the power-up signal, wherein the power-up time is configured.

[0012] Some aspects described herein relate to an apparatus for wireless communication. The apparatus may include means for sending a power-up signal. The apparatus may include means for receiving a backscatter signal including information bits, or sending a command or bit, at a power-up time after starting to send the power-up signal, wherein the power-up time is configured or searched.

[0013] Aspects collectively include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, wireless devices, base stations, network entities, wireless communication devices, and / or processing systems as fully described herein with reference to the accompanying drawings and description and as illustrated in the accompanying drawings and description.

[0014] The features and technical advantages of examples according to the present disclosure have been outlined quite extensively above so that the following specific embodiments may be better understood. Additional features and advantages will be described below. The disclosed concepts and specific examples may be easily used as a basis for modifying or designing other structures for achieving the same purpose of the present disclosure. Such equivalent constructions do not depart from the scope of protection of the appended claims. The characteristics of the concepts disclosed herein, both in terms of their organization and method of operation, and the associated advantages will be better understood by considering the following description in conjunction with the accompanying drawings. Each of the accompanying drawings is provided for the purpose of illustration and description, and not as a definition of the limitations of the claims.

[0015] Although various aspects are described in the present disclosure by illustrating some examples, it will be understood by those skilled in the art that such aspects can be implemented in many different arrangements and scenarios. The technology described herein can be implemented using different platform types, devices, systems, shapes, sizes and / or packaging arrangements. For example, some aspects can be implemented via integrated chip implementations or other devices based on non-module components (e.g., end-user devices, vehicles, communication equipment, computing equipment, industrial equipment, retail / shopping equipment, medical equipment and / or artificial intelligence devices). Various aspects can be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components and / or system-level components. The equipment incorporating the various aspects and features described may include additional components and features for implementing and practicing the various aspects claimed and described. For example, the transmission and reception of wireless signals may include one or more components (e.g., hardware components, including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders and / or summers) for analog and digital purposes. The various aspects described herein are intended to be practiced in various devices, components, systems, distributed arrangements and / or end-user devices of various sizes, shapes and configurations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to fully understand the above-mentioned features of the present disclosure, a more specific description of the invention briefly summarized above can be obtained by referring to various aspects (some of which are illustrated in the accompanying drawings). However, it should be noted that the accompanying drawings only illustrate certain typical aspects of the present disclosure and are therefore not to be considered as limiting the scope thereof, as the specification may admit of other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.

[0017] Figure 1 is a diagram illustrating an example of a wireless network according to the present disclosure.

[0018] Figure 2 is a diagram illustrating an example of a network entity communicating with a user equipment (UE) in a wireless network according to the present disclosure.

[0019] Figure 3 is a diagram illustrating an example of a decomposed base station according to the present disclosure.

[0020] Figure 4 is a diagram illustrating an example of energy harvesting according to the present disclosure.

[0021] Figure 5 is a diagram illustrating an example of backscatter communication according to the present disclosure.

[0022] Figure 6is a diagram illustrating an example associated with harvesting energy using a reserved energy harvesting duration according to the present disclosure.

[0023] Figure 7 is a diagram illustrating an example of a sub-band used for backscattering according to the present disclosure.

[0024] Figure 8 is a diagram illustrating an example of using repetition according to the present disclosure.

[0025] Fig. 9 is a diagram illustrating an example process performed, for example, by a wireless device according to the present disclosure.

[0026] Fig.10 is a diagram illustrating an example process performed, for example, by a wireless device according to the present disclosure.

[0027] Figure 11 to Figure 12 is a diagram of an example apparatus for wireless communications according to the present disclosure. DETAILED DESCRIPTION

[0028] The various aspects of the disclosure are described more fully below with reference to the accompanying drawings. However, the present disclosure can be embodied in many different forms, and should not be interpreted as being limited to any specific structure or function presented throughout the present disclosure. Instead, these aspects are provided so that the present disclosure will be thorough and complete, and the protection scope of the disclosure will be fully conveyed to those skilled in the art. It should be understood by those skilled in the art that the scope of the present disclosure is intended to cover any aspect of the disclosure disclosed herein, whether it is implemented independently or in combination with any other aspect of the disclosure. For example, any number of aspects set forth herein may be used to implement a device or practice method. In addition, the scope of the present disclosure is intended to cover such devices or methods that are practiced using other structures, functionality, or structures and functionality in addition to or different from the various aspects of the disclosure set forth herein. It should be understood that any aspect of the disclosure disclosed herein may be embodied by one or more elements of the claims.

[0029] Several aspects of telecommunication systems will now be presented with reference to various devices and techniques. These devices and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements can be implemented using hardware, software, or a combination thereof. Whether these elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0030] Although various aspects may be described herein using terminology often associated with 5G or new radio (NR) radio access technology (RAT), various aspects of the present disclosure may be applicable to other RATs, such as 3G RAT, 4G RAT, and / or post-5G RATs (e.g., 6G).

[0031] Figure 1 1 is a diagram illustrating an example of a wireless network 100 according to the present disclosure. The wireless network 100 may be a 5G (e.g., NR) network and / or a 4G (e.g., Long Term Evolution (LTE)) network, or may include elements of a 5G (e.g., NR) network and / or a 4G (e.g., Long Term Evolution (LTE)) network, among other examples. The wireless network 100 may include a user equipment (UE) 120 or a plurality of UEs 120 (shown as UE 120a, UE 120b, UE 120c, UE 120d, and UE 120e). The wireless network 100 may also include one or more network entities, such as a base station 110 (shown as BS110a, BS110b, BS110c, and BS110d) and / or other network entities. The base station 110 is a network entity that communicates with the UE 120. Base station 110 (sometimes referred to as BS) may include, for example, an NR base station, an LTE base station, a Node B, an eNB (e.g., in 4G), a gNB (e.g., in 5G), an access point, and / or a transmit receive point (TRP). Each base station 110 may provide communication coverage for a particular geographic area. In the Third Generation Partnership Project (3GPP), the term "cell" may refer to a coverage area of ​​a base station 110 and / or a base station subsystem serving the coverage area, depending on the context in which the term is used.

[0032] Base station 110 may provide communication coverage for a macro cell, a pico cell, a femto cell, and / or another type of cell. A macro cell may cover a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access by UE 120 with a service subscription. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UE 120 with a service subscription. A femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by UE 120 associated with the femto cell (e.g., UE 120 in a closed subscriber group (CSG)). A base station 110 for a macro cell may be referred to as a macro base station. A base station 110 for a pico cell may be referred to as a pico base station. A base station 110 for a femto cell may be referred to as a femto base station or a home base station. In Figure 1In the example shown, BS 110a may be a macro base station for macrocell 102a, BS 110b may be a pico base station for picocell 102b, and BS 110c may be a femto base station for femtocell 102c. A base station may support one or more (eg, three) cells.

[0033] In some examples, the cell may not necessarily be stationary, and the geographic area of ​​the cell may move depending on the location of a mobile base station 110 (e.g., a mobile base station). In some examples, the base stations 110 may be interconnected with each other and / or to one or more other base stations 110 or network entities in the wireless network 100 through various types of backhaul interfaces (such as direct physical connections or virtual networks) using any suitable transport network.

[0034] In some aspects, the term "base station" (e.g., base station 110) or "network entity" may refer to a converged base station, a decomposed base station, an integrated access and backhaul (IAB) node, a relay node, and / or one or more components thereof. For example, in some aspects, a "base station" or "network entity" may refer to a central unit (CU), a distributed unit (DU), a radio unit (RU), a near real-time (near-RT) RAN intelligent controller (RIC), or a non-real-time (non-RT) RIC, or a combination thereof. In some aspects, the term "base station" or "network entity" may refer to a device configured to perform one or more functions, such as those described herein in conjunction with base station 110. In some aspects, the term "base station" or "network entity" may refer to a plurality of devices configured to perform one or more functions. For example, in some distributed systems, each of a plurality of different devices (which may be located in the same geographical location or in different geographical locations) may be configured to perform at least a portion of a function, or to repeat the execution of at least a portion of the function, and the term "base station" or "network entity" may refer to any one or more of these different devices. In some aspects, the term "base station" or "network entity" may refer to one or more virtual base stations and / or one or more virtual base station functions. For example, in some aspects, two or more base station functions may be instantiated on a single device. In some aspects, the term "base station" or "network entity" may refer to one of the base station functions but not another base station function. In this way, a single device may include more than one base station.

[0035] The wireless network 100 may include one or more relay stations. A relay station is a network entity that can receive transmissions of data from an upstream station (e.g., a network entity or UE 120) and transmit transmissions of data to a downstream station (e.g., a UE 120 or a network entity). A relay station may be a UE 120 that is capable of relaying transmissions for other UEs 120. Figure 1In the example shown, BS 110d (eg, a relay base station) may communicate with BS 110a (eg, a macro base station) and UE 120d to facilitate communication between BS 110a and UE 120d. Base station 110 that relays communication may be referred to as a relay station, relay base station, relay, or the like.

[0036] The wireless network 100 may be a heterogeneous network having network entities including different types of BSs, such as macro base stations, pico base stations, femto base stations, relay base stations, etc. These different types of base stations 110 may have different transmit power levels, different coverage areas, and / or different impacts on interference in the wireless network 100. For example, a macro base station may have a high transmit power level (e.g., 5 watts to 40 watts), while a pico base station, a femto base station, and a relay base station may have a lower transmit power level (e.g., 0.1 watt to 2 watts).

[0037] The network controller 130 may be coupled to or in communication with a set of network entities and may provide coordination and control for the network entities. The network controller 130 may communicate with the base station 110 via a backhaul communication link. The network entities may also communicate directly with each other or indirectly via a wireless or wired backhaul communication link.

[0038] UE 120 may be dispersed throughout the wireless network 100, and each UE 120 may be stationary or mobile. UE 120 may include, for example, an access terminal, a terminal, a mobile station, and / or a subscriber unit. UE 120 may be a cellular phone (e.g., a smart phone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet computer, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device, a biometric device, a wearable device (e.g., a smart watch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring or a smart bracelet)), an entertainment device (e.g., a music device, a video device, and / or a satellite radio), a vehicle component or sensor, a smart meter / sensor, an industrial manufacturing equipment, a global positioning system device, and / or any other suitable device configured to communicate via a wireless medium.

[0039] Some UEs 120 may be considered as machine type communication (MTC) or evolved or enhanced machine type communication (eMTC) UEs. MTC UEs and / or eMTC UEs may include, for example, robots, drones, remote devices, sensors, meters, monitors, and / or location tags, which may communicate with a network entity, another device (e.g., a remote device), or some other entity. Some UEs 120 may be considered as Internet of Things (IoT) devices and / or may be implemented as NB-IoT (narrowband IoT) devices. Some UEs 120 may be considered as customer premises equipment. UE 120 may be included inside a housing that houses components of UE 120, such as a processor component and / or a memory component. In some examples, the processor component and the memory component may be coupled together. For example, a processor component (e.g., one or more processors) and a memory component (e.g., a memory) may be operably coupled, communicatively coupled, electronically coupled, and / or electrically coupled.

[0040] In general, any number of wireless networks 100 may be deployed in a given geographic area. Each wireless network 100 may support a specific RAT and may operate on one or more frequencies. RAT may be referred to as a radio technology, air interface, etc. Frequency may be referred to as a carrier, frequency channel, etc. Each frequency may support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks may be deployed.

[0041] In some examples, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly (e.g., without using a network entity as an intermediary to communicate with each other) using one or more side link channels. For example, UE 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, or vehicle-to-pedestrian (V2P) protocols), and / or mesh networks. In such examples, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by base station 110.

[0042] The devices of the wireless network 100 may communicate using an electromagnetic spectrum, which may be subdivided into various categories, bands, channels, etc., based on frequency or wavelength. For example, the devices of the wireless network 100 may communicate using one or more operating bands. In 5G NR, two initial operating bands have been identified as frequency ranges designated FR1 (410 MHz–7.125 GHz) and FR2 (24.25 GHz–52.6 GHz). It should be understood that, although portions of FR1 are greater than 6 GHz, FR1 is often (interchangeably) referred to as the “below 6 GHz” band in various documents and articles. Similar naming issues sometimes occur with respect to FR2, which is often (interchangeably) referred to as the “millimeter wave” band in documents and articles, although different from the extremely high frequency (EHF) band (30 GHz–300 GHz) identified as the “millimeter wave” band by the International Telecommunication Union (ITU).

[0043] Frequencies between FR1 and FR2 are generally referred to as mid-band frequencies. Recent 5G NR research has identified the operating bands for these mid-band frequencies as frequency range designation FR3 (7.125 GHz–24.25 GHz). The bands falling within FR3 can inherit FR1 characteristics and / or FR2 characteristics, and therefore can effectively extend the features of FR1 and / or FR2 to mid-band frequencies. In addition, higher frequency bands are currently being explored to extend 5G NR operations to more than 52.6 GHz. For example, three higher operating bands have been identified as frequency range designations FR4a or FR4-1 (52.6 GHz-71 GHz), FR4 (52.6 GHz-114.25 GHz), and FR5 (114.25 GHz-300 GHz). Each of these higher frequency bands falls within the EHF band.

[0044] In view of the above examples, unless otherwise specifically stated, it should be understood that if the term "below 6 GHz" or the like is used herein, the term can be broadly referred to as a frequency that can be lower than 6 GHz, can be within FR1, or can include mid-band frequencies. In addition, unless otherwise specifically stated, it should be understood that if the term "millimeter wave" or the like is used herein, the term can be broadly referred to as a frequency that can include mid-band frequencies, can be within FR2, FR4, FR4-a or FR4-1 and / or FR5, or can be within the EHF band. It is contemplated that the frequencies included in these operating bands (e.g., FR1, FR2, FR3, FR4, FR4-a, FR4-1, and / or FR5) can be modified, and the techniques described herein are applicable to those modified frequency ranges.

[0045] In some aspects, a wireless device (e.g., an IoT device, a zero-power device, a UE 120, an energy harvesting (EH) device) may include a communication manager 140. As described in more detail elsewhere herein, the communication manager 140 may receive a power-up signal; and send a backscatter signal including an information bit, or receive a command or bit at a power-up time after starting to receive the power-up signal, wherein the power-up time is configured. Additionally or alternatively, the communication manager 140 may perform one or more other operations described herein.

[0046] In some aspects, a wireless device (e.g., UE 120, charging device, base station 110, network entity) may include a communication manager 140 or 150. As described in more detail elsewhere herein, the communication manager 140 or 150 may send a power-up signal; and receive a backscatter signal including an information bit, or send a command or bit at a power-up time after starting to send the power-up signal, wherein the power-up time is configured or searched. Additionally or alternatively, the communication manager 140 or 150 may perform one or more other operations described herein.

[0047] As indicated above, Figure 1 are provided as examples. Other examples can be found in the Figure 1 Different than described.

[0048] Figure 2 2 is a diagram illustrating an example 200 of a network entity (e.g., base station 110) communicating with UE 120 in a wireless network 100 according to the present disclosure. Base station 110 may be equipped with a set of antennas 234a to 234t, such as T antennas (T≥1). UE 120 may be equipped with a set of antennas 252a to 252r, such as R antennas (R≥1).

[0049] At the base station 110, the transmit processor 220 may receive data intended for the UE 120 (or a set of UEs 120) from the data source 212. The transmit processor 220 may select one or more modulation and coding schemes (MCS) for the UE 120 based at least in part on one or more channel quality indicators (CQI) received from the UE 120. The base station 110 may process (e.g., encode and modulate) the data for the UE 120 based at least in part on the MCS selected for the UE 120, and provide data symbols for the UE 120. The transmit processor 220 may process system information (e.g., for semi-static resource partitioning information (SRPI)) and control information (e.g., CQI requests, grants, and / or upper layer signaling), and provide overhead symbols and control symbols. The transmit processor 220 may generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS) or demodulation reference signals (DMRS)) and synchronization signals (e.g., primary synchronization signals (PSS) or secondary synchronization signals (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., pre-coding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols, where applicable, and may provide a set of output symbol streams (e.g., T output symbol streams) to a corresponding set of modems 232 (e.g., T modems) (shown as modems 232a to 232t). For example, each output symbol stream may be provided to a modulator component (shown as MOD) of the modem 232. Each modem 232 may process a corresponding output symbol stream (e.g., for OFDM) using a corresponding modulator component to obtain an output sample stream. Each modem 232 may also process (e.g., convert to analog, amplify, filter, and / or up-convert) the output sample stream using a corresponding modulator component to obtain a downlink signal. The modems 232a to 232t may transmit a set of downlink signals (e.g., T downlink signals) via a corresponding set of antennas 234 (e.g., T antennas) (shown as antennas 234a to 234t).

[0050] At the UE 120, a set of antennas 252 (shown as antennas 252a to 252r) may receive downlink signals from the base station 110 and / or other base stations 110 and may provide a set of received signals (e.g., R received signals) to a set of modems 254 (e.g., R modems) (shown as modems 254a to 254r). For example, each received signal may be provided to a demodulator component (shown as DEMOD) of the modem 254. Each modem 254 may use a corresponding demodulator component to condition (e.g., filter, amplify, downconvert, and / or digitize) the received signal to obtain input samples. Each modem 254 may use a demodulator component to further process the input samples (e.g., for OFDM) to obtain received symbols. A MIMO detector 256 may obtain received symbols from the modem 254, may perform MIMO detection on the received symbols where applicable, and may provide detected symbols. The receive processor 258 may process (e.g., demodulate and decode) the detected symbols, may provide decoded data for the UE 120 to the data sink 260, and may provide decoded control information and system information to the controller / processor 280. The term "controller / processor" may refer to one or more controllers, one or more processors, or a combination thereof. The channel processor may determine a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, and / or a CQI parameter, among other things. In some examples, one or more components of the UE 120 may be included in the housing 284.

[0051] The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292. The network controller 130 may include, for example, one or more devices in a core network. The network controller 130 may communicate with network entities via the communication unit 294.

[0052] One or more antennas (e.g., antennas 234a to 234t and / or antennas 252a to 252r) may include or be included within one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, and / or one or more antenna arrays, etc. Antenna panels, antenna groups, sets of antenna elements, and / or antenna arrays may include one or more antenna elements (in a single housing or multiple housings), sets of coplanar antenna elements, sets of non-coplanar antenna elements, and / or may be coupled to one or more transmit and / or receive components (such as, Figure 2 One or more antenna elements of one or more components in.

[0053] On the uplink, at the UE 120, the transmit processor 264 may receive and process data from the data source 262 and control information from the controller / processor 280 (e.g., for reports including RSRP, RSSI, RSRQ, and / or CQI). The transmit processor 264 may generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 may be pre-decoded by the TX MIMO processor 266, where applicable, further processed by the modem 254 (e.g., for DFT-s-OFDM or CP-OFDM), and sent to a network entity. In some examples, the modem 254 of the UE 120 may include a modulator and a demodulator. In some examples, the UE 120 includes a transceiver. The transceiver may include any combination of an antenna 252, a modem 254, a MIMO detector 256, a receive processor 258, a transmit processor 264, and / or a TX MIMO processor 266. The transceiver may be used by a processor (eg, controller / processor 280) and memory 282 to perform the functions described herein (eg, with reference to Figures 4 to 12 ) any aspects of any of the methods described herein.

[0054] At a network entity (e.g., base station 110), uplink signals from UE 120 and / or other UEs may be received by antenna 234, processed by modem 232 (e.g., a demodulator component of modem 232 shown as DEMOD), detected by MIMO detector 236 (where applicable), and further processed by receive processor 238 to obtain decoded data and control information transmitted by UE 120. Receive processor 238 may provide decoded data to data sink 239 and decoded control information to controller / processor 240. The network entity may include a communication unit 244 and may communicate with network controller 130 via communication unit 244. The network entity may include a scheduler 246 to schedule one or more UEs 120 for downlink and / or uplink communications. In some examples, the modem 232 of the network entity may include a modulator and a demodulator. In some examples, the network entity includes a transceiver. The transceiver may include any combination of antenna 234, modem 232, MIMO detector 236, receive processor 238, transmit processor 220, and / or TX MIMO processor 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to execute the instructions described herein (e.g., reference 20). Figures 4 to 12 ) any aspects of any of the methods described herein.

[0055] As described in more detail elsewhere herein, a controller / processor of a network entity (e.g., controller / processor 240 of base station 110), controller / processor 280 of UE 120, and / or Figure 2 Any other component of may perform one or more techniques associated with configuring the power-on time of the EH device. In some aspects, the first device described herein is UE 120, is included in UE 120, or includes Figure 2 In some aspects, the second device described herein is a UE 120 or a network entity, is included in a UE 120 or a network entity, or includes Figure 2 One or more components of the UE 120 or base station 110 shown. For example, the controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component of the Fig. 9 The process of 900 Fig.10 1000 and / or operations of other processes as described herein. Memory 242 and memory 282 may store data and program codes for a network entity and UE 120, respectively. In some examples, memory 242 and / or memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code and / or program code) for wireless communication. For example, the one or more instructions, when executed (e.g., directly or after compilation, conversion, and / or interpretation) by one or more processors of a network entity and / or UE 120, may cause the one or more processors, UE 120, and / or network entity to perform or direct, for example, Fig. 9 The process of 900 Fig.10 The process 1000 and / or operations of other processes as described herein. In some examples, executing instructions may include running instructions, converting instructions, compiling instructions, and / or interpreting instructions, etc.

[0056] In some aspects, a wireless device (e.g., an IoT device, a zero-power device, a UE 120, an EH device) includes a component for receiving a power-up signal; and / or a component for sending a backscatter signal including an information bit, or receiving a command or bit at a power-up time after starting to receive the power-up signal, wherein the power-up time is configured. In some aspects, the components for the wireless device to perform the operations described herein may include, for example, one or more of the communication manager 140, the antenna 252, the modem 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, the TX MIMO processor 266, the controller / processor 280, or the memory 282.

[0057] In some aspects, a wireless device (e.g., UE 120, charging device, base station 110, network entity) includes a component for sending a power-on signal; and / or a component for receiving a backscatter signal including an information bit, or sending a command or bit at a power-on time after starting to send the power-on signal, wherein the power-on time is configured or searched. In some aspects, the components for the wireless device to perform the operations described herein may include, for example, one or more of the communication manager 150, the transmit processor 220, the TX MIMO processor 230, the modem 232, the antenna 234, the MIMO detector 236, the receive processor 238, the controller / processor 240, the memory 242, or the scheduler 246. In some aspects, the components for the wireless device to perform the operations described herein may include, for example, one or more of the communication manager 140, the antenna 252, the modem 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, the TX MIMO processor 266, the controller / processor 280, or the memory 282.

[0058] Although Figure 2 The blocks in the 2000 and 2010 are illustrated as distinct components, but the functionality described above with respect to these blocks may be implemented in a single hardware, software, or combined component or in various combinations of components. For example, the functionality described with respect to the transmit processor 264, the receive processor 258, and / or the TX MIMO processor 266 may be performed by or under the control of the controller / processor 280.

[0059] As indicated above, Figure 2 are provided as examples. Other examples can be found in the Figure 2 Different than described.

[0060] Figure 3 is a diagram illustrating an example of a decomposed base station 300 according to the present disclosure.

[0061] The deployment of a communication system (such as a 5G NR system) can be arranged with various components or constituent parts in a variety of ways. In a 5G NR system or network, a network node, a network entity, a mobility element of a network, a radio access network (RAN) node, a core network node, a network element or a network equipment (such as a base station (BS) or one or more units (or one or more components) that perform base station functionality) can be implemented in an aggregated or decomposed architecture. For example, a BS (such as a Node B (NB), an evolved NB (eNB), an NR BS, a 5G NB, an access point (AP), a TRP or a cell, etc.) can be implemented as an aggregated base station (also referred to as an independent BS or a monolithic BS) or a decomposed base station.

[0062] A converged base station may be configured to utilize a radio protocol stack physically or logically integrated within a single RAN node. A decomposed base station may be configured to utilize a protocol stack physically or logically distributed between two or more units (such as one or more CUs, one or more DUs, or one or more RUs). In some aspects, a CU may be implemented within a RAN node, and one or more DUs may be co-located with the CU, or alternatively, may be geographically or virtually distributed in one or more other RAN nodes. A DU may be implemented to communicate with one or more RUs. Each of a CU, a DU, and a RU may also be implemented as a virtual unit, namely a virtual central unit (VCU), a virtual distributed unit (VDU), or a virtual radio unit (VRU).

[0063] Base station type operations or network designs may take into account the aggregated nature of base station functionality. For example, a disaggregated base station may be utilized in an IAB network, an open radio access network (O-RAN (such as a network configuration initiated by the O-RAN Alliance)), or a virtualized radio access network (vRAN, also known as a cloud radio access network (C-RAN)). Decomposition may include distributing functionality across two or more units at various physical locations, as well as virtually distributing functionality of at least one unit, which may enable flexibility in network design. Individual units of a disaggregated base station or disaggregated RAN architecture may be configured for wired or wireless communication with at least one other unit.

[0064] The decomposed base station 300 architecture may include one or more CUs 310 that may communicate directly with a core network 320 via a backhaul link, or indirectly with the core network 320 through one or more decomposed base station units, such as a near real-time (near-RT) RIC 325 via an E2 link, or a non-real-time (non-RT) RIC 315 associated with a service management and orchestration (SMO) framework 305, or both. The CU 310 may communicate with one or more DUs 330 via corresponding midhaul links, such as an F1 interface. The DU 330 may communicate with one or more RUs 340 via corresponding fronthaul links. Fronthaul links, midhaul links, and backhaul links may generally be referred to as "communication links." The RU 340 may communicate with a corresponding UE 120 via one or more radio frequency (RF) access links. In some aspects, a UE 120 may be served by multiple RUs 340 simultaneously. DU 330 and RU 340 may also be referred to as “O-RAN DU (O-DU)” and “O-RAN RU (O-RU)”, respectively. A network entity may include a CU, DU, RU, or any combination of CU, DU, and RU. A network entity may include a decomposed base station or one or more components of a decomposed base station, such as a CU, DU, RU, or any combination of CU, DU, and RU. A network entity may also include one or more of a TRP, a relay station, a passive device, an intelligent reflective surface (IRS), or other components that may provide a network interface or service for a UE, a mobile station, a sensor / actuator, or other wireless device.

[0065] Each of these units (i.e., CU 310, DU 330, RU 340, and near-RT RIC 325, non-RT RIC 315, and SMO framework 305) may include or be coupled to one or more interfaces configured to receive or send signals, data, or information (collectively referred to as signals) via a wired or wireless transmission medium. Each of these units or an associated processor or controller that provides instructions to the communication interface of these units may be configured to communicate with one or more of the other units via a transmission medium. For example, these units may include a wired interface configured to receive or send signals to one or more of the other units via a wired transmission medium. Additionally, these units may include a wireless interface that may include a receiver, a transmitter, or a transceiver (such as an RF transceiver) configured to receive or send signals, or both, to one or more of the other units via a wireless transmission medium.

[0066] In some aspects, CU 310 may host one or more higher layer control functions. Such control functions may include radio resource control (RRC), packet data convergence protocol (PDCP), service data adaptation protocol (SDAP), etc. Each control function may be implemented using an interface that is configured to communicate signals with other control functions hosted by CU 310. CU 310 may be configured to handle user plane functionality (i.e., central unit-user plane (CU-UP)), control plane functionality (i.e., central unit-control plane (CU-CP)), or a combination thereof. In some specific implementations, CU 310 may be logically split into one or more CU-UP units and one or more CU-CP units. When implemented in an O-RAN configuration, the CU-UP unit may communicate bidirectionally with the CU-CP unit via an interface (such as an E1 interface). As needed, CU 310 may be implemented to communicate with DU 330 for network control and signaling.

[0067] DU 330 may correspond to a logical unit that includes one or more base station functions for controlling the operation of one or more RU 340. In some aspects, DU 330 may host one or more of a radio link control (RLC) layer, a medium access control (MAC) layer, and one or more high physical (PHY) layers (such as modules for forward error correction (FEC) encoding and decoding, scrambling, modulation and demodulation, etc.) at least in part according to a functional split (such as a functional split defined by 3GPP). In some aspects, DU 330 may also host one or more low PHY layers. Each layer (or module) may be implemented using an interface that is configured to communicate signals with other layers (and modules) hosted by DU 330 or with control functions hosted by CU 310.

[0068] The lower layer functionality may be implemented by one or more RUs 340. In some deployments, a RU 340 controlled by a DU 330 may correspond to a logical node that hosts RF processing functions or low PHY layer functions (such as performing Fast Fourier Transform (FFT), Inverse FFT (iFFT), digital beamforming, physical random access channel (PRACH) extraction and filtering, etc.), or both, based at least in part on a functional split (such as a lower layer functional split). In such an architecture, the RU 340 may be implemented to handle over-the-air (OTA) communications with one or more UEs 120. In some implementations, real-time and non-real-time aspects of control plane and user plane communications with the RU 340 may be controlled by the corresponding DU 330. In some scenarios, this configuration may enable the DU 330 and CU 310 to be implemented in a cloud-based RAN architecture (such as a vRAN architecture).

[0069] The SMO framework 305 may be configured to support RAN deployment and configuration of non-virtualized network elements and virtualized network elements. For non-virtualized network elements, the SMO framework 305 may be configured to support the deployment of dedicated physical resources for RAN coverage requirements, which may be managed via an operation and maintenance interface (such as an O1 interface). For virtualized network elements, the SMO framework 305 may be configured to interact with a cloud computing platform (such as an open cloud (O-Cloud) 390) to perform network element lifecycle management (such as instantiating virtualized network elements) via a cloud computing platform interface (such as an O2 interface). Such virtualized network elements may include, but are not limited to, CU 310, DU 330, RU 340, and near-RT RIC 325. In some specific implementations, the SMO framework 305 may communicate with hardware aspects of the 4G RAN (such as an open eNB (O-eNB) 311) via the O1 interface. Additionally, in some specific implementations, the SMO framework 305 may communicate directly with one or more RUs 340 via the O1 interface. The SMO framework 305 may also include a non-RT RIC 315 configured to support the functionality of the SMO framework 305 .

[0070] The non-RT RIC 315 may be configured to include logic functions that enable non-real-time control and optimization of RAN elements and resources, artificial intelligence / machine learning (AI / ML) workflows including model training and updating, or policy-based guidance of applications / features in the near-RT RIC 325. The non-RT RIC 315 may be coupled to or in communication with the near-RT RIC 325 (such as via an A1 interface). The near-RT RIC 325 may be configured to include logic functions that enable near-real-time control and optimization of RAN elements and resources via data collection and actions through an interface (such as via an E2 interface) that connects one or more CUs 310, one or more DUs 330, or both, and the O-eNB with the near-RT RIC 325.

[0071] In some implementations, in order to generate an AI / ML model to be deployed in the near-RT RIC 325, the non-RT RIC 315 may receive parameters or external enrichment information from an external server. Such information may be utilized by the near-RT RIC 325 and may be received from a non-network data source or from a network function at the SMO framework 305 or the non-RT RIC 315. In some examples, the non-RT RIC 315 or the near-RT RIC 325 may be configured to tune RAN behavior or performance. For example, the non-RT RIC 315 may monitor long-term trends and patterns of performance and employ AI / ML models to perform corrective actions through the SMO framework 305 (such as via reconfiguration of O1) or via the creation of RAN management policies (such as A1 policies).

[0072] As indicated above, Figure 3 are provided as examples. Other examples can be found in the Figure 3 Different than described.

[0073] Figure 4 is a diagram illustrating an example 400 of energy harvesting according to the present disclosure.

[0074] Energy harvesting includes devices that obtain energy from sources other than batteries on the device. This may include obtaining energy from a source external to the device. Devices using energy harvesting may have small energy storage devices or batteries (e.g., smart watches, RedCap devices, eRedCap devices) or no energy storage devices or batteries (e.g., zero-power devices, IoT devices, wearable devices, or financial devices). Energy harvesting may include converting RF energy transmitted from another device. The harvesting of RF energy may not fully charge the battery, but may be used for tasks such as data decoding, operating some filters, data reception, data encoding, data reception, and / or data transmission. Energy may accumulate over time. Energy harvesting may also be part of a self-sustaining network, in which nodes in the network can interact in the network by sending energy harvested in the network.

[0075] like Figure 4 As shown, an RF receiver (e.g., UE 120) can receive signals (e.g., radio signals carried on radio waves) from an RF transmitter (e.g., base station 110 or UE 120) and convert the electromagnetic energy of these signals into direct current for use by the RF receiver (e.g., using a rectifying antenna including a dipole antenna with an RF diode). The RF receiver can be a low-power device or a zero-power device. The RF transmitter can be referred to as a "charging device."

[0076] As shown in reference numeral 405, in some aspects, the RF receiver can use a split receiver architecture, where a first set of antennas is configured to harvest energy and a second set of antennas is configured to receive data. In this scenario, each set of antennas can be individually configured to receive signals at certain times, frequencies, and / or via one or more specific beams, so that all signals received by the first set of antennas are harvested to obtain energy, and all signals received by the second set of antennas are processed to receive information.

[0077] As shown in the reference numeral 410, in some aspects, the RF receiver may use a time-switched architecture to harvest energy. The time-switched architecture may use one or more antennas to receive signals, and whether the signals are harvested to obtain energy or processed to receive information depends on the time when the signals are received. For example, one or more first time slots may be time slots during which the received signals are transmitted to one or more energy harvesting components to harvest energy, and one or more second time slots may be time slots during which the received signals are processed and decoded to receive information. In some aspects, the time slots may be pre-configured (e.g., by the RF receiver, the RF transmitter, or another device).

[0078] As shown in the reference numeral 415, in some aspects, the RF receiver may use a power split architecture to harvest energy. The power split architecture may use one or more antennas to receive signals, and these signals are processed by one or both of the energy harvesting component and / or the information receiving component according to the energy harvesting rate. For example, the RF receiver may be configured to use a first portion of the received signal for energy harvesting and use the remaining received signal for information reception. The energy harvesting mode for the device may be semi-statistically configured via RRC messaging. In some aspects, the energy harvesting rate may be pre-configured (e.g., by the RF receiver, the RF transmitter, or another device). Even in energy harvesting mode, communication with a network entity may be required, but with reduced radio capabilities to reduce power consumption.

[0079] The RF receiver may receive a signal for energy harvesting at certain resources (e.g., time, frequency, and / or space resources) and at a certain power level that results in a specific charging rate. The energy harvested by the RF receiver may be used and / or stored for later use. For example, in some aspects, the RF receiver may be powered directly by the harvested energy. In some aspects, the RF receiver may use an energy storage device (such as a battery, capacitor, and / or supercapacitor) to gather and store the harvested energy for immediate and / or later use.

[0080] An energy harvesting device may have a low power or wake-up radio that is configured to detect a low power wake-up signal (WUS) but not perform other communications. An energy harvesting device may have a main radio that is configured to perform communications and consumes more power than the low power radio or the wake-up radio. An energy harvesting device may have limited RF capabilities (less than an enhanced UE) or full RF capabilities (comparable to an enhanced UE).

[0081] More generally, energy harvesting devices may equally or differently rely on different energy harvesting techniques, such as solar, vibration, thermal, or RF energy harvesting. Since energy is intermittently available, energy harvesting may be predictable or unpredictable. Current communications use fixed activity periods for transmission and reception, such as the on-duration of an active DRX cycle. An active DRX cycle may include a portion of a DRX cycle when the DRX on-duration timer (the time the UE is monitoring physical downlink control channel (PDCCH) communications) or the DRX inactivity timer (the time the UE is active after successfully decoding a PDCCH communication) is running. Once a timer is started, it may run until it is stopped or until it expires; otherwise it does not run. A timer may be started if it is not running, or restarted if it is running. A timer may be started or restarted from its initial value.

[0082] As indicated above, Figure 4 are provided as examples. Other examples can be found in the Figure 4 Different than described.

[0083] Figure 5 is a diagram illustrating an example 500 of backscatter communications according to the present disclosure.

[0084] EH devices may include passive IoT devices (e.g., RFID tags) that rely on passive communication techniques such as backscatter communication. Backscatter communication involves using RF signals to write or send data without a battery or power source. Transmitter / reader 502 may send a continuous wave (CW) signal (radio waves represented as x(n)), which may be received by multiple devices (such as reader 504). Wireless device 506 (e.g., passive IoT device, UE 120 without an energy source, scattering device) may harvest energy (e.g., tens or hundreds of microwatts of electricity) from the signal. Wireless device 506 may use passive reflection and modulation of the signal to use the harvested energy to send a backscatter signal. That is, wireless device 506 may modulate the signal to encode data and then reflect a portion of the wave to reader 504 or transmitter / reader 502. The backscatter signal may be encoded with information bits (e.g., identification information, sensor information) of wireless device 506. Reader 504 may receive the backscatter signal and read the information bits. In some scenarios, the wireless device 506 may use information commands (eg, write, send) or bits (eg, data, configuration, indication) modulated in received data or control signals to write commands or bits to the wireless device 506 itself.

[0085] A modulation method for backscattering includes amplitude shift keying (ASK), which turns on reflection when sending information bit "1" and turns off reflection when sending information bit "0". If the information bit of the backscattering device is s(n)∈{0,1}, the signal received at the UE may be y(n)=(h D1D2 (n)+σ f h D1T (n)h TD2 (n)s(n))x(n)+noise. In example 500, D1 is the transmitter / reader 502, D2 is the reader 504, and T is the wireless device 506 for the transmitted signal h. When s(n)=0, the reflection is turned off at the wireless device 506 so that the reader 504 receives only the direct link signal (y(n)=h D1D2( When s(n)=1, the reflection is turned on at the wireless device 506, so that the reader 504 receives the superposition of both the direct link signal and the backscatter, which is represented by y(n)=(h D1D2 (n)+σ f h D1T (n)h TD2 (n)s(n))x(n)+noise, where σ f Represents the reflection coefficient.

[0086] To receive the information bits sent by the wireless device 506, the reader 504 may first D1D2 (n), decode x(n) by treating the backscatter link signal as interference. The reader 504 can then decode x(n) by subtracting h from y(n). D1D2 (n)x(n) to detect the term σ f h D1T (n)h TD2 The existence of (n)s(n)x(n).

[0087] Ultra-high frequency radio frequency identification (UHF RFID) systems may be based on backscatter communication. However, current UHF RFID systems are not compatible with NR systems. For example, RFID systems operate in the industrial, scientific, and medical (ISM) band, while NR systems operate primarily in licensed bands. In addition, effective interference management has not yet been established between these systems.

[0088] As indicated above, Figure 5 are provided as examples. Other examples can be found in the Figure 5 Different than described.

[0089] Figure 6 is a diagram illustrating an example 600 associated with harvesting energy using a reserved EH duration according to the present disclosure. Figure 6 As shown, a reader 610 (e.g., UE 120, base station 110, network entity) may transmit RF energy to a wireless device 620 (e.g., RFID tag, IoT device, EH device, zero-power device, UE 120) for EH, for backscattering, or for writing commands or information bits to the wireless device 620. The wireless device 620 may not have its own power source and may require the EH to provide operating power.

[0090] According to various aspects described herein, the wireless device 620 may be configured to operate in an NR network and may receive a power-up signal from the reader 610 to power up or preheat the wireless device 620. The power-up signal may be a CW signal that starts before a command or bit is received in a data or control signal. Once the power of the wireless device reaches the on voltage, the wireless device 620 may be able to receive a command or bit modulated in the CW signal. The wireless device 620 may maintain the voltage and send a response (e.g., a backscattered signal with an information bit). In some aspects, there may be a power-up time 622 between when the CW signal starts and when the wireless device 620 is expected to have enough power for sending and writing. The power-up time 622 may be a configured duration. For example, the power-up time and the initial (e.g., default) frequency are preconfigured, loaded to the wireless device 620, and determined by the power transmitter based at least in part on the device class or device type of the wireless device 620. The reader 610 may send an indication of the preconfigured power-up time 622 to the wireless device 620. In this manner, both the reader 610 and the wireless device 620 may know when a power operation by the wireless device 620 is expected.

[0091] As shown at reference numeral 625, the reader 610 may send a power-up time configuration. This may be received at an earlier power-up time 622 of the wireless device 620. As shown at reference numeral 630, the reader 610 may begin sending a power-up signal. As shown at reference numeral 635, the wireless device may harvest energy from the power-up signal.

[0092] In some aspects, the EH circuitry of the wireless device 620 is designed based at least in part on a set of frequencies to be used when the wireless device 620 is turned on. The wireless device 620 can indicate to the reader 610 which frequencies are best suited for use, or which frequencies the EH circuitry is designed for. The reader 610 can send a power-on signal on these frequencies, frequency bands, bandwidth portions (BWPs), or frequency ranges.

[0093] As shown at reference numeral 640, the reader may send commands or bits in the data or control signal at or after the end of the power-up time 622. These commands may be information commands that provide information or instructions to, for example, write, send, and / or change power or communication configurations. These bits may be information bits, such as information bits for data, headers, or other information. The power-up time may be a specified number of time slots or symbols before a power-up signal is received.

[0094] Whenever the wireless device 620 is ready, the wireless device 620 can autonomously start backscattering or writing. In this scenario, the reader 610 may have to search when the wireless device 620 is powered on, as shown in reference numeral 640. Searching when the wireless device 620 is powered on can be considered as searching for the power-on time used by the wireless device 620, or more specifically searching for the end of the power-on time. The reader 610 can search in the configured time segment (time opportunity). In other words, if the reader 610 has not configured the power-on time for the wireless device 620, or knows the power-on time used by the wireless device 620, the reader 610 may have to search when the wireless device 620 is powered on to understand the power-on time used by the wireless device 620.

[0095] The reader 610 or a network entity (e.g., base station 110) may indicate the operating mode to the wireless device 620 (and the reader 610), whether the mode is autonomous or dependent on the power-up time 622. The mode may be indicated via layer 1 (L1), layer 2 (L2), or layer 3 (L3) signaling. If the source of the power-up signal source is the reader 610, then the mode may not need to be indicated. In some aspects, the reader 610 may indicate the mode to the wireless device 620. Alternatively, the wireless device 620 may begin backscattering or writing at a specified point in time, such as at the power-up time 622 after the power-up signal begins.

[0096] As shown in reference numeral 640, the reader 610 may send a command or bit in the data or control signal. This may be done at a specified time based at least in part on the configured power-up time 622. The wireless device 620 should be fully powered at this time and may write the command or bit received in the data or control signal, as shown in reference numeral 645. In some aspects, as shown in reference numeral 650, the wireless device 620 may send a backscatter signal that is modulated with information bits provided by the wireless device 620 and read by the reader 610. By using the configured power-up time, the wireless device 620 and the reader 610 may better synchronize operations when the wireless device 620 is fully powered. Therefore, the reader 610 does not waste power and signaling resources to send commands or bits when the wireless device is not ready. The reader 610 and the wireless device 620 may also reduce latency.

[0097] In some aspects, the reader 610 can reduce latency by starting to send a power-up signal in a previous time slot or symbol before an expected read or write operation. The power-up signal can start at a power-up time 622 before an expected read or write operation. In some aspects, the reader 610 can configure the power-up time 622, the start time of the data or control signal, and / or the duration of the power-up signal via a configured grant or dynamically via L1 / L2 / L3 to signal a specified time (e.g., time, symbol, time slot) before an expected read or write operation.

[0098] As indicated above, Figure 6 are provided as examples. Other examples can be found in the Figure 6 Different than described.

[0099] Figure 7 is a diagram illustrating an example 700 of sub-bands for backscattering according to the present disclosure.

[0100] In some aspects, if the wireless device 620 is capable of harvesting energy on a frequency band different from the frequency band used for data or control signals or backscatter signals, and if the wireless device 620 is capable of stopping harvesting (and cutting off) energy from the data or control signal (which may be a power-up signal), which reduces backscatter power in the case of a read and reduces decoding power in the case of a write, the reader 610 or network entity may indicate to the wireless device 620 to use a portion of a certain frequency band, BWP, frequency band range, time slot type (downlink or uplink), sub-band full duplex (SBFD) time slot, or intra-band FD (IBFD) time slot to harvest energy and use other portions for read or write operations without reducing data or control signal power. Example 700 illustrates powering up the wireless device 620 and performing read or write operations using different sub-bands in frequency division multiplexing (FDM).

[0101] For reading, two or more RF sources may transmit CW signals during the read time, thus boosting power even in the same band / time as the data. However, for writing, unless both RF sources have the same data to write to the wireless device 620, the network entity may allocate power signals in different bands (not on the same band as the data to boost power).

[0102] In some aspects, the wireless device 620 may send a message indicating the ability of the wireless device 620 to stop using the power-up signal to harvest energy if necessary to maintain the transmit power of the backscatter signal. The message may indicate a class of the wireless device associated with the ability to harvest energy and transmit backscatter signals or write after the power-up time 622.

[0103] In some aspects, the wireless device 620 may indicate the ability to harvest energy using other signals (in addition to signals for data reading / writing), and / or the ability to stop harvesting using data or control signals when needed (to maintain signals with high power). The wireless device 620 may not rely on data or control signals to harvest energy. In other words, the wireless device 630 may send a tag or other message indicating the ability to harvest energy using other signals (in addition to data or control signals for data reading or writing), and / or the ability to stop harvesting using data or control signals when needed (to maintain signals with high power). The processor and / or integrated circuit system may not rely on data or control signals for power. This will increase the range and help allocate different frequency bands for circuit system power and for data transmission and reception.

[0104] As indicated above, Figure 7 are provided as examples. Other examples can be found in the Figure 7 Different than described.

[0105] Figure 8 is a diagram illustrating an example 800 of using repetition according to the present disclosure.

[0106] Example 800 shows that the power-on signal and the write command can share a time slot, but operate to power on the wireless device 620 and write a command to the wireless device 620. The duration of the power-on signal can vary with the duration of the write. If the power-on signal has a long duration, the power-on signal may include repeated information, where there is a specific time when the repetition begins and is known to the wireless device 620. Once powered on, the wireless device 620 can use the rest of the power-on signal, which is modulated CW (same as command 1) to combine with the last part of the command (sent after T1). In some aspects, the power-on signal includes at least a portion of the data that starts at a specified time or segment of the time slot and is repeated in the data or control signal. This can improve the reliability of writing commands or information bits to the wireless device 620.

[0107] As indicated above, Figure 8 are provided as examples. Other examples can be found in the Figure 8 Different than described.

[0108] Fig. 9 is a diagram illustrating an example process 900 performed, for example, by a wireless device in accordance with the present disclosure. The example process 900 is an example in which a wireless device (eg, the wireless device 620) performs operations associated with a configured power-up time.

[0109] like Fig. 9As shown, in some aspects, process 900 may include receiving a power-up signal (block 910). For example, a wireless device (e.g., using Fig.11 The communications manager 1108 and / or receiving component 1102 depicted in FIG. 10A may receive a power-up signal as described above.

[0110] like Fig. 9 As further shown, in some aspects, process 900 may include sending a backscatter signal including an information bit, or receiving a command or bit, at a power-up time after beginning to receive a power-up signal, wherein the power-up time is configured (block 920). Fig.11 The communication manager 1108 and / or transmitting component 1104 depicted in FIG. 1 may transmit a backscatter signal including information bits, or receive a command or bit, at a power-on time after beginning to receive a power-on signal, wherein the power-on time is configured as described above.

[0111] Process 900 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0112] In a first aspect, the power-on signal is a wake-up signal.

[0113] In a second aspect, alone or in combination with the first aspect, the power-on time is preconfigured.

[0114] In a third aspect, either alone or in combination with one or more of the first and second aspects, the power-on time and initial (e.g., default) frequency are pre-configured, loaded into the wireless device, and determined by the power transmitter based at least in part on a device class or device type of the wireless device.

[0115] In a fourth aspect, either alone or in combination with one or more of the first to third aspects, process 900 includes receiving an indication of one or more of frequency resources or time resources for energy harvesting; and using the one or more of the frequency resources or time resources to harvest energy.

[0116] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, harvesting energy includes harvesting energy concurrently with sending backscattered signals or receiving commands or bits.

[0117] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, sending the backscatter signal or receiving the command or bit and harvesting energy occur in the same frequency band.

[0118] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, sending the backscatter signal or receiving the command or bit and harvesting energy occur in different frequency bands.

[0119] In an eighth aspect, either alone or in combination with one or more of aspects 1 to 7, process 900 includes sending a message indicating the ability of the wireless device to concurrently harvest energy and send the backscatter signal or receive a command or bit.

[0120] In a ninth aspect, either alone or in combination with one or more of aspects one to eight, process 900 includes sending a message instructing the wireless device to stop using a signal to be backscattered or a modulated signal carrying data and instead rely on other frequency bands or signals for powering, the modulated signal being used in part to power the wireless device.

[0121] In a tenth aspect, either alone or in combination with one or more of aspects one to nine, process 900 includes sending a message indicating a category of the wireless device associated with a capability to harvest energy and send a backscatter signal or write after the power-on time.

[0122] In an eleventh aspect, alone or in combination with one or more of the first to tenth aspects, the power-on signal includes at least a portion of data starting at a specified time or segment of a time slot and repeated in the command or bit.

[0123] although Fig. 9 Example blocks of process 900 are shown, but in some aspects, process 900 may include Fig. 9 In some embodiments, the process 900 may include additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted in the process 900. Additionally or alternatively, two or more blocks of the blocks of process 900 may be executed in parallel.

[0124] Fig.10 is a diagram illustrating an example process 1000 performed, for example, by a wireless device in accordance with the present disclosure. Example process 1000 is an example in which a wireless device (eg, UE 120, reader 610, network entity) performs operations associated with using a configured power-up time.

[0125] like Fig.10 As shown, in some aspects, process 1000 may include sending a power-up signal (block 1010). For example, a wireless device (e.g., using Fig.12 The communication manager 1208 and / or the sending component 1204 depicted in FIG. 1204 may send a power-on signal as described above.

[0126] like Fig.10 As further shown, in some aspects, process 1000 may include receiving a backscatter signal including an information bit, or sending a command or bit, at a power-up time after starting to send a power-up signal, wherein the power-up time is configured or searched (block 1020). Fig.12 The communication manager 1208 and / or receiving component 1202 depicted in FIG. 1 may receive a backscatter signal including information bits, or send a command or bit, at a power-on time after starting to send a power-on signal, wherein the power-on time is configured or searched as described above.

[0127] Process 1000 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0128] In a first aspect, the power-on signal is a wake-up signal.

[0129] In a second aspect, alone or in combination with the first aspect, the power-on time is preconfigured.

[0130] In a third aspect, alone or in combination with one or more of the first and second aspects, process 1000 includes searching for the start of a backscatter signal.

[0131] In a fourth aspect, alone or in combination with one or more of the first to third aspects, sending the power-on signal includes starting to send the power-on signal in a time slot prior to a time slot in which the backscatter signal is received or the data or control signal is sent.

[0132] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, process 1000 includes sending an indication of a specified number of time slots or symbols of the power-on time before receiving the power-on signal.

[0133] In a sixth aspect, either alone or in combination with one or more of aspects 1 to 5, process 1000 includes sending an indication of one or more of frequency resources or time resources for energy harvesting; and using the one or more of the frequency resources or time resources to send the power-on signal.

[0134] In a seventh aspect, alone or in combination with one or more of the first to sixth aspects, sending the power-on signal includes sending the power-on signal concurrently with receiving the backscatter signal or sending the command or bit.

[0135] In an eighth aspect, alone or in combination with one or more of the first to seventh aspects, receiving the backscatter signal or sending the command or bit and sending the power-on signal occur in the same frequency band.

[0136] In a ninth aspect, alone or in combination with one or more of the first to eighth aspects, receiving the backscatter signal or sending the command or bit and sending the power-on signal occur in different frequency bands.

[0137] In a tenth aspect, either alone or in combination with one or more of aspects one to nine, process 1000 comprises receiving a message indicating the capability of the wireless device to concurrently harvest energy and transmit the backscattered signal or receive a command or bit; and sending the command or bit comprises sending the command or bit based at least in part on the capability.

[0138] In an eleventh aspect, alone or in combination with one or more of aspects one to ten, process 1000 includes receiving a message indicating that the wireless device stops using a signal to be backscattered or a modulated signal carrying data and instead relies on other frequency bands or signals for powering, the modulated signal being used in part to power the wireless device; and sending the power-on signal includes sending the power-on signal based at least in part on the capability.

[0139] In a twelfth aspect, either alone or in combination with one or more of aspects 1 to eleven, process 1000 includes receiving a message indicating a category of the wireless device associated with a capability to harvest energy and send a backscatter signal or receive a command or bit after the power-on time; and sending the command or bit includes sending the command or bit based at least in part on the capability.

[0140] In a thirteenth aspect, alone or in combination with one or more of the first to twelfth aspects, the power-on signal includes at least a portion of the data starting at a specified time or segment of the time slot and repeated in the command or bit.

[0141] although Fig.10 Example blocks of process 1000 are shown, but in some aspects, process 1000 may include Fig.10 In some embodiments, the process 1000 may include additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted in the process 1000. Additionally or alternatively, two or more blocks of the blocks of process 1000 may be executed in parallel.

[0142] Fig.111 is a diagram of an example apparatus 1100 for wireless communication. Apparatus 1100 may be a wireless device (e.g., UE 120, wireless device 506, wireless device 620), or a wireless device may include apparatus 1100. In some aspects, apparatus 1100 includes a receiving component 1102 and a transmitting component 1104 that may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 1100 may communicate with another apparatus 1106 (such as a UE, a base station, or another wireless communication device) using receiving component 1102 and transmitting component 1104. As further shown, apparatus 1100 may include a communication manager 1108. Communication manager 1108 may control and / or otherwise manage one or more operations of receiving component 1102 and / or transmitting component 1104. In some aspects, communication manager 1108 may include a communication manager 1108 in conjunction with receiving component 1102 and transmitting component 1104. Figure 2 One or more antennas, modems, controllers / processors, memories, or combinations thereof of the described UE. The communication manager 1108 may be or be similar to Figure 1 and Figure 2 For example, in some aspects, the communication manager 1108 can be configured to perform one or more of the functions described as being performed by the communication manager 140. In some aspects, the communication manager 1108 can include a receiving component 1102 and / or a sending component 1104. The communication manager 1108 can include a collection component 1110, etc.

[0143] In some aspects, the apparatus 1100 may be configured to perform Figures 1 to 8 Additionally or alternatively, the apparatus 1100 may be configured to perform one or more processes described herein, such as Fig. 9 The process 900. In some aspects, Fig.11 The device 1100 and / or one or more components shown may include a combination of Figure 2 Additionally or alternatively, Fig.11 One or more of the components shown may be combined with Figure 2 Additionally or alternatively, one or more components in the component set may be implemented at least in part as software stored in a memory. For example, a component (or part of a component) may be implemented as an instruction or code that is stored in a non-transitory computer-readable medium and can be executed by a controller or processor to perform the function or operation of the component.

[0144] The receiving component 1102 may receive communications from the device 1106, such as reference signals, control information, data communications, or combinations thereof. The receiving component 1102 may provide the received communications to one or more other components of the device 1100. In some aspects, the receiving component 1102 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding) on ​​the received communications and may provide the processed signals to one or more other components of the device 1100. In some aspects, the receiving component 1102 may include combining Figure 2 One or more antennas, modems, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof of the described wireless devices.

[0145] The transmitting component 1104 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to the device 1106. In some aspects, one or more other components of the device 1100 may generate communications and may provide the generated communications to the transmitting component 1104 for transmission to the device 1106. In some aspects, the transmitting component 1104 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and may transmit the processed signals to the device 1106. In some aspects, the transmitting component 1104 may include combining Figure 2 One or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the described wireless devices. In some aspects, the transmit component 1104 can be co-located with the receive component 1102 in a transceiver.

[0146] The receiving component 1102 can receive the power-up signal. The transmitting component 1104 can transmit a backscatter signal including information bits, or receive a command or bit, at a power-up time after starting to receive the power-up signal, wherein the power-up time is configured.

[0147] The receiving component 1102 can receive an indication of a specified number of time slots or symbols of the power-on time prior to receiving the power-on signal. The receiving component 1102 can receive an indication of one or more of the frequency resources or time resources for energy harvesting. The harvesting component 1110 can harvest energy using one or more of the frequency resources or time resources.

[0148] The transmitting component 1104 may transmit a message indicating the ability of the wireless device to concurrently harvest energy and transmit backscatter signals or receive commands or bits. The transmitting component 1104 may transmit a message indicating the ability of the wireless device to stop using the power-up signal to harvest energy if necessary to maintain the transmit power of the backscatter signal. The transmitting component 1104 may transmit a message indicating a class of the wireless device associated with the ability to harvest energy and transmit backscatter signals or write after the power-up time.

[0149] Fig.11 The number and arrangement of components shown are provided as examples. In practice, there may be Fig.11 Additional components, fewer components, different components, or components arranged in a different manner than those shown. Fig.11 Two or more components shown may be implemented in a single component, or Fig.11 The single component shown may be implemented as multiple distributed components. Additionally or alternatively, Fig.11 The component set (one or more components) shown may be described as being executable by Fig.11 Another component shown may be a collection of components that perform one or more functions.

[0150] Fig.12 1 is a diagram of an example apparatus 1200 for wireless communication. Apparatus 1200 may be a wireless device (e.g., reader 610, a network entity), or a wireless device may include apparatus 1200. In some aspects, apparatus 1200 includes a receiving component 1202 and a transmitting component 1204 that may communicate with each other (e.g., via one or more buses and / or one or more other components). As shown, apparatus 1200 may communicate with another apparatus 1206 (such as a UE, a base station, or another wireless communication device) using receiving component 1202 and transmitting component 1204. As further shown, apparatus 1200 may include a communication manager 1208. Communication manager 1208 may control and / or otherwise manage one or more operations of receiving component 1202 and / or transmitting component 1204. In some aspects, communication manager 1208 may include a communication manager 1208 in conjunction with Figure 2 One or more antennas, modems, controllers / processors, memories, or combinations thereof of the described UE or base station. The communication manager 1208 may be or be similar to Figure 1 and Figure 2For example, in some aspects, the communication manager 1208 can be configured to perform one or more of the functions described as being performed by the communication manager 150. In some aspects, the communication manager 1208 can include a receiving component 1202 and / or a sending component 1204. The communication manager 1208 can include a searching component 1210, etc.

[0151] In some aspects, the apparatus 1200 may be configured to perform Figures 1 to 8 Additionally or alternatively, the apparatus 1200 may be configured to perform one or more processes described herein, such as Fig.10 The process 1000. In some aspects, Fig.12 The device 1200 and / or one or more components shown may include a combination of Figure 2 Additionally or alternatively, Fig.12 One or more of the components shown may be combined with Figure 2 Additionally or alternatively, one or more components in the component set may be implemented at least in part as software stored in a memory. For example, a component (or part of a component) may be implemented as an instruction or code that is stored in a non-transitory computer-readable medium and can be executed by a controller or processor to perform the function or operation of the component.

[0152] The receiving component 1202 may receive communications, such as reference signals, control information, data communications, or combinations thereof, from the device 1206. The receiving component 1202 may provide the received communications to one or more other components of the device 1200. In some aspects, the receiving component 1202 may perform signal processing (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding) on ​​the received communications and may provide the processed signals to one or more other components of the device 1200. In some aspects, the receiving component 1202 may include combining Figure 2 One or more antennas, modems, demodulators, MIMO detectors, receive processors, controllers / processors, memories, or combinations thereof of the described wireless devices.

[0153] The transmitting component 1204 may transmit communications, such as reference signals, control information, data communications, or combinations thereof, to the device 1206. In some aspects, one or more other components of the device 1200 may generate communications and may provide the generated communications to the transmitting component 1204 for transmission to the device 1206. In some aspects, the transmitting component 1204 may perform signal processing (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, etc.) on the generated communications and may transmit the processed signals to the device 1206. In some aspects, the transmitting component 1204 may include combining Figure 2 One or more antennas, modems, modulators, transmit MIMO processors, transmit processors, controllers / processors, memories, or combinations thereof of the described wireless devices. In some aspects, the transmit component 1204 can be co-located with the receive component 1202 in a transceiver.

[0154] The transmitting component 1204 can transmit a power-up signal. The receiving component 1202 can receive a backscatter signal including information bits, or send a command or bit, at a power-up time after starting to transmit the power-up signal, wherein the power-up time is configured or searched. The searching component 1210 can search for the start of the backscatter signal.

[0155] The transmitting component 1204 can transmit an indication of a specified number of time slots or symbols of the power-up time prior to receiving the power-up signal. The transmitting component 1204 can transmit an indication of one or more of the frequency resources or time resources used for energy harvesting. The transmitting component 1204 can transmit the power-up signal using one or more of the frequency resources or time resources.

[0156] The receiving component 1202 may receive a message indicating the wireless device's ability to concurrently harvest energy and transmit backscatter signals or receive commands or bits; and transmit the command or bit based at least in part on the capability. The receiving component 1202 may receive a message indicating the wireless device's ability to stop using a power-up signal to harvest energy if necessary to maintain transmit power of the backscatter signal; and transmit the power-up signal based at least in part on the capability. The receiving component 1202 may receive a message indicating a class of wireless devices associated with the ability to harvest energy and transmit backscatter signals or receive commands or bits after a power-up time; and transmit the data or control signal based at least in part on the capability.

[0157] Fig.12 The number and arrangement of components shown are provided as examples. In practice, there may be Fig.12 Additional components, fewer components, different components, or components arranged in a different manner than those shown. Fig.12Two or more components shown may be implemented in a single component, or Fig.12 The single component shown may be implemented as multiple distributed components. Additionally or alternatively, Fig.12 The component set (one or more components) shown may be described as being executable by Fig.12 Another component shown may be a collection of components that perform one or more functions.

[0158] The following provides an overview of some aspects of the disclosure:

[0159] Aspect 1: A method for performing wireless communication by a wireless device, the method comprising: receiving a power-on signal; and sending a backscatter signal including an information bit, or receiving a command or bit at a power-on time after starting to receive the power-on signal, wherein the power-on time is configured.

[0160] Aspect 2: The method according to aspect 1, wherein the power-on signal is a wake-up signal.

[0161] Aspect 3: The method according to aspect 1 or 2, wherein the power-on time and the initial frequency are pre-configured, loaded to the wireless device, and determined by a power transmitter based at least in part on a device category or a device type of the wireless device.

[0162] Aspect 4: The method according to any one of aspects 1 to 3, further comprising: before receiving the power-on signal, receiving an indication of a specified number of time slots or symbols of the power-on time.

[0163] Aspect 5: According to the method described in any one of Aspects 1 to 4, the method further includes: receiving an indication of one or more of frequency resources or time resources for energy harvesting; and using the one or more of the frequency resources or time resources to harvest energy.

[0164] Aspect 6: The method according to aspect 5, wherein harvesting energy comprises harvesting energy concurrently with sending the backscattered signal or receiving the command or bit.

[0165] Aspect 7: The method according to aspect 6, wherein sending the backscatter signal or receiving the command or bit and harvesting energy occur in the same frequency band.

[0166] Aspect 8: The method according to aspect 6, wherein sending the backscatter signal or receiving the command or bit and harvesting energy occur in different frequency bands.

[0167] Aspect 9: The method according to any one of aspects 1 to 8, further comprising: sending a message indicating the ability of the wireless device to concurrently harvest energy and send the backscattered signal or receive a command or bit.

[0168] Aspect 10: According to the method described in any one of Aspects 1 to 9, the method further includes: sending a message instructing the wireless device to stop using the signal to be backscattered or the modulated signal carrying data and instead rely on other frequency bands or signals for power supply, and the modulated signal is partially used to power the wireless device.

[0169] Aspect 11: According to the method described in any one of Aspects 1 to 10, the method further includes: sending a message indicating a category of the wireless device, the category being associated with a capability to collect energy and send a backscatter signal or write after the power-on time.

[0170] Aspect 12: The method according to any one of aspects 1 to 11, wherein the power-on signal includes at least a portion of data starting at a specified time or segment of a time slot and repeated in the command or bit.

[0171] Aspect 13: A method for performing wireless communication by a wireless device, the method comprising: sending a power-on signal; and receiving a backscatter signal including an information bit, or sending a command or bit at a power-on time after starting to send the power-on signal, wherein the power-on time is configured or searched.

[0172] Aspect 14: The method according to aspect 13, wherein the power-on signal is a wake-up signal.

[0173] Aspect 15: The method according to aspect 13 or 14, wherein the power-on time is preconfigured.

[0174] Aspect 16: The method according to any one of aspects 13 to 15, further comprising: searching for the start of the backscatter signal.

[0175] Aspect 17: The method according to any one of aspects 13 to 16, wherein sending the power-on signal comprises starting to send the power-on signal in a time slot before a time slot in which the backscatter signal is received or the command or bit is sent.

[0176] Aspect 18: The method according to any one of aspects 13 to 17, further comprising: sending an indication of a specified number of time slots or symbols of the power-on time before receiving the power-on signal.

[0177] Aspect 19: According to the method described in any one of Aspects 13 to 18, the method further includes: sending an indication of one or more of the frequency resources or time resources used for energy harvesting; and using the one or more of the frequency resources or time resources to send the power-on signal.

[0178] Aspect 20: The method according to any one of aspects 13 to 19, wherein sending the power-on signal comprises sending the power-on signal concurrently with receiving the backscatter signal or sending the command or bit.

[0179] Aspect 21: The method according to aspect 20, wherein receiving the backscatter signal or sending the data or control signal and sending the power-on signal occur in the same frequency band.

[0180] Aspect 22: The method according to aspect 20, wherein receiving the backscatter signal or sending the command or bit and sending the power-on signal occur in different frequency bands.

[0181] Aspect 23: According to any one of Aspects 13 to 22, the method further includes: receiving a message indicating the ability of the wireless device to concurrently collect energy and send the backscatter signal or receive a command or bit; and wherein sending the command or bit includes sending the command or bit based at least in part on the capability.

[0182] Aspect 24: According to the method described in any one of Aspects 13 to 23, the method further includes: receiving a message indicating the ability of the wireless device to stop using the signal to be backscattered or the modulated signal carrying data and instead rely on other frequency bands or signals for powering, the modulated signal being partially used to power the wireless device; and wherein sending the command or bit includes sending the command or bit based at least in part on the capability.

[0183] Aspect 25: According to the method described in any one of Aspects 13 to 24, the method also includes: receiving a message indicating a category of the wireless device, the category being associated with a capability for collecting energy after the power-on time and sending a backscatter signal or receiving a command or bit; and wherein sending the command or bit includes sending the command or bit based at least in part on the capability.

[0184] Aspect 26: The method according to any one of aspects 13 to 25, wherein the power-up signal includes at least a portion of data starting at a specified time or segment of a time slot and repeated in the command or bit.

[0185] Aspect 27: An apparatus for performing wireless communications at a device, the apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform one or more of the methods described in Aspects 1 to 26.

[0186] Aspect 28: A device for wireless communication, the device comprising: a memory; and one or more processors, the one or more processors coupled to the memory, the one or more processors configured to execute the method according to one or more of aspects 1 to 26.

[0187] Aspect 29: An apparatus for wireless communication, the apparatus comprising at least one means for performing the method according to one or more of aspects 1 to 26.

[0188] Aspect 30: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method according to one or more of aspects 1 to 26.

[0189] Aspect 31: A non-transitory computer-readable medium storing an instruction set for wireless communication, the instruction set comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform one or more of the methods described in aspects 1 to 26.

[0190] The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations may be made in light of the above disclosure or may be acquired from practice of these aspects.

[0191] As used herein, the term "component" is intended to be broadly interpreted as hardware, and / or a combination of hardware and software. Whether referred to as software, firmware, middleware, microcode, hardware description language or other names, "software" should be broadly interpreted as meaning instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures and / or functions, etc. As used herein, "processor" is implemented in hardware and / or a combination of hardware and software. It will be clear that the system or method described herein can be implemented by a combination of hardware and / or hardware and software in different forms. The actual dedicated control hardware or software code used to implement these systems and / or methods does not limit various aspects. Therefore, the operation and behavior of the system and / or method are not described herein with reference to specific software codes, because it will be understood by those skilled in the art that software and hardware can be designed to implement the system and / or method at least in part based on the description herein.

[0192] As used herein, "satisfying a threshold" may refer to a value being greater than a threshold, greater than or equal to a threshold, less than a threshold, less than or equal to a threshold, equal to a threshold, not equal to a threshold, etc., depending on the context.

[0193] Although the specific combination of features is set forth in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. Many of these features can be combined in a manner that is not specifically set forth in the claims and / or is not disclosed in the specification. The disclosure of various aspects includes each dependent claim combined with each other claim in the claim set. As used herein, the phrase "at least one of" the item list refers to any combination of these items (it includes a single member). As an example, "at least one of a, b or c" is intended to cover a, b, c, a+b, a+c, b+c and a+b+c, and any combination with multiple identical elements (for example, a+a, a+a+a, a+a+b, a+a+c, a+b+b, a+c+c, b+b, b+b+b, b+b+c, c+c and c+c+c, or any other sorting of a, b and c).

[0194] Any element, action or instruction used herein should not be interpreted as key or necessary unless explicitly described as such. In addition, as used herein, the articles "one" and "a kind of" are intended to include one or more items and can be used interchangeably with "one or more". In addition, as used herein, the article "said" is intended to include one or more items connected to the article "said", and can be used interchangeably with "said one or more". In addition, as used herein, the terms "set" and "group" are intended to include one or more items and can be used interchangeably with "one or more". If only one item is intended to be referred to, the phrase "only one" or similar terms will be used. In addition, as used herein, the terms "have", "have", "have" etc. are intended to be open terms, which do not limit the elements they modify (for example, "an element having" A may also have B). In addition, the phrase "based on" is intended to mean "based at least in part on", unless otherwise explicitly stated. Furthermore, as used herein, the term "or" when used in a series is intended to be open-ended and may be used interchangeably with "and / or" unless expressly stated otherwise (eg, if used in conjunction with "either" or "only one of").

Claims

1. A wireless device for wireless communication, the wireless device comprising: Memory; and one or more processors coupled to the memory and configured to: Receive a power-on signal; as well as A backscatter signal including an information bit is sent, or a command or a bit is received, at a power-on time after starting to receive the power-on signal, wherein the power-on time is configured. The wireless device of claim 1 , wherein the power-on signal is a wake-up signal. 3 . The wireless device of claim 1 , wherein the power-up time and initial frequency are preconfigured, loaded into the wireless device, and determined by a power transmitter based at least in part on a device class or device type of the wireless device. 4 . The wireless device of claim 1 , wherein the one or more processors are configured to receive an indication of a specified number of time slots or symbols of the power-up time prior to receiving the power-up signal.

5. The wireless device of claim 1 , wherein the one or more processors are configured to: receiving an indication of one or more of frequency resources or time resources for energy harvesting; and Energy is harvested using the one or more of frequency resources or time resources.

6. The wireless device of claim 5, wherein to harvest energy, the one or more processors are configured to harvest energy concurrently with sending the backscattered signal or receiving the command or bit.

7. The wireless device of claim 6, wherein sending the backscatter signal or receiving the command or bit and harvesting energy occur in the same frequency band.

8. The wireless device of claim 6, wherein sending the backscatter signal or receiving the command or bit and harvesting energy occur in different frequency bands.

9. The wireless device of claim 1, wherein the one or more processors are configured to send a message indicating the wireless device's ability to concurrently harvest energy and send the backscattered signal or receive a command or bit.

10. A wireless device according to claim 1, wherein the one or more processors are configured to: send a message indicating that the wireless device stops using the backscattered signal or the modulated signal carrying data and instead relies on other frequency bands or signals for powering, and the modulated signal is partially used to power the wireless device.

11. The wireless device of claim 1 , wherein the one or more processors are configured to send a message indicating a class of the wireless device associated with a capability to harvest energy and send a backscatter signal or write after the power-on time.

12. The wireless device of claim 1, wherein the power-up signal includes at least a portion of data starting at a specified time or segment of a time slot and repeated in the command or bit.

13. A wireless device for wireless communication, the wireless device comprising: Memory; and one or more processors coupled to the memory and configured to: Send a power-on signal; as well as A backscatter signal including information bits is received, or a command or bit is sent, at a power-on time after starting to send the power-on signal, wherein the power-on time is configured or searched. The wireless device of claim 13 , wherein the power-up signal is a wake-up signal. The wireless device of claim 13 , wherein the power-on time is preconfigured.

16. The wireless device of claim 13, wherein the one or more processors are configured to search for a start of the backscatter signal.

17. The wireless device of claim 13, wherein to send the power-up signal, the one or more processors are configured to start sending the power-up signal in a time slot prior to a time slot in which the backscatter signal is received or the command or bit is sent.

18. The wireless device of claim 13, wherein the one or more processors are configured to send an indication of the power-up time a specified number of time slots or symbols prior to receiving the power-up signal.

19. The wireless device of claim 13, wherein the one or more processors are configured to: sending an indication of one or more of a frequency resource or a time resource for energy harvesting; and The power-up signal is sent using the one or more of frequency resources or time resources.

20. The wireless device of claim 13, wherein to send the power-up signal, the one or more processors are configured to send the power-up signal concurrently with receiving the backscatter signal or sending the command or bit.

21. The wireless device of claim 20, wherein receiving the backscatter signal or sending the command or bit and sending the power-on signal occur in the same frequency band.

22. The wireless device of claim 20, wherein receiving the backscatter signal or sending the command or bit and sending the power-on signal occur in different frequency bands.

23. A wireless device according to claim 13, wherein the one or more processors are configured to: receive a message indicating the ability of the wireless device to concurrently harvest energy and send the backscatter signal or receive a command or bit; and wherein in order to send the command or bit, the one or more processors are configured to: send the command or bit based at least in part on the capability.

24. A wireless device according to claim 13, wherein the one or more processors are configured to: receive a message indicating that the wireless device stops using the ability of a signal to be backscattered or a modulated signal carrying data and instead relies on other frequency bands or signals for powering, the modulated signal being partially used to power the wireless device; and wherein in order to send the command or bit, the one or more processors are configured to: send the power-on signal based at least in part on the capability.

25. A wireless device according to claim 13, wherein the one or more processors are configured to: receive a message indicating a category of the wireless device, the category being associated with a capability to harvest energy and send a backscatter signal or receive a command or bit after the power-on time; and wherein in order to send the command or bit, the one or more processors are configured to: send the command or bit based at least in part on the capability.

26. The wireless device of claim 13, wherein the power-up signal includes at least a portion of data starting at a specified time or segment of a time slot and repeated in the command or bit.

27. A method of performing wireless communications by a wireless device, the method comprising: Receive a power-on signal; as well as A backscatter signal including an information bit is sent, or a command or a bit is received, at a power-on time after starting to receive the power-on signal, wherein the power-on time is configured.

28. The method according to claim 27, further comprising: Prior to receiving the power-up signal, an indication of a specified number of time slots or symbols of the power-up time is received.

29. A method of performing wireless communications by a wireless device, the method comprising: Send a power-on signal; as well as A backscatter signal including information bits is received, or a command or bit is sent, at a power-on time after starting to send the power-on signal, wherein the power-on time is configured or searched.

30. The method according to claim 29, further comprising: Search for the start of the backscatter signal.

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