WO2023279236A1 - 无线通信的方法和设备 - Google Patents

无线通信的方法和设备 Download PDF

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Publication number
WO2023279236A1
WO2023279236A1 PCT/CN2021/104470 CN2021104470W WO2023279236A1 WO 2023279236 A1 WO2023279236 A1 WO 2023279236A1 CN 2021104470 W CN2021104470 W CN 2021104470W WO 2023279236 A1 WO2023279236 A1 WO 2023279236A1
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WIPO (PCT)
Prior art keywords
signal
terminal device
time unit
indication information
communication
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PCT/CN2021/104470
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English (en)
French (fr)
Inventor
崔胜江
徐伟杰
左志松
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to CN202180099928.8A priority Critical patent/CN117561772A/zh
Priority to PCT/CN2021/104470 priority patent/WO2023279236A1/zh
Priority to EP21948735.2A priority patent/EP4366178A4/en
Publication of WO2023279236A1 publication Critical patent/WO2023279236A1/zh
Priority to US18/395,438 priority patent/US20240137194A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B5/00Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/40Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by components specially adapted for near-field transmission
    • H04B5/45Transponders
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signaling for the administration of the divided path
    • H04L5/0092Indication of how the channel is divided
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/14Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1461Suppression of signals in the return path, i.e. bidirectional control circuits
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/14Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1469Two-way operation using the same type of signal, i.e. duplex using time-sharing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/18TPC being performed according to specific parameters
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • H04L5/0007Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0026Division using four or more dimensions

Definitions

  • the embodiments of the present application relate to the communication field, and in particular to a method and device for wireless communication.
  • a typical zero-power device is a tag in radio frequency identification (Radio Frequency Identification, RFID) technology.
  • the tag passes the radio frequency signal sent by the reader (That is, the energy supply signal and the carrier signal) are modulated to carry information and send it to the reader.
  • the communication in the New Radio (NR) system needs to strictly consider the allocation of uplink and downlink resources.
  • TDD Time Division Duplex
  • tags should transmit signals on uplink resources.
  • the backscatter communication of the tag requires the reader to provide the carrier signal, that is, the signal transmitted by the tag on the uplink resource also needs the base station to provide the carrier signal, while in the TDD spectrum, the base station can only provide the carrier signal on the downlink resource. Therefore, how to realize the backscatter communication of zero-power devices on the TDD spectrum is an urgent problem to be solved.
  • the present application provides a method and device for wireless communication, which can realize backscatter communication of a zero-power consumption device on a TDD frequency spectrum.
  • a wireless communication method including: a terminal device receives a signal sent by a first device, and the signal is used for powering the terminal device and/or for the terminal device to perform backscattering
  • the first device is a device other than the network device that provides services for the terminal device.
  • a wireless communication method including: a first device sends a signal to a terminal device, and the signal is used for powering the terminal device and/or for the terminal device to perform backscatter communication , wherein the first device is other than the network device that provides services for the terminal device.
  • a method for wireless communication including a network device sending a scheduling signal to a first device, where the scheduling signal is used to schedule or trigger the first device to send a signal to a terminal device, and the signal is used to send a signal to a terminal device
  • the terminal device supplies power and/or is used for the terminal device to perform backscatter communication.
  • a terminal device configured to execute the method in the foregoing first aspect or various implementation manners thereof.
  • the terminal device includes a functional module for executing the method in the above first aspect or its various implementation manners.
  • a device for wireless communication configured to execute the method in the above second aspect or various implementations thereof.
  • the device includes a functional module for executing the method in the above second aspect or each implementation manner thereof.
  • a network device configured to execute the method in the above third aspect or its various implementation manners.
  • the network device includes a functional module for executing the method in the above third aspect or each implementation manner thereof.
  • a terminal device including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the above first aspect or its various implementations.
  • a wireless communication device including a processor and a memory.
  • the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the above second aspect or its various implementations.
  • a ninth aspect provides a network device, including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program stored in the memory to execute the method in the above third aspect or its various implementations.
  • a chip configured to implement any one of the foregoing first to third aspects or the method in each implementation manner thereof.
  • the chip includes: a processor, configured to call and run a computer program from the memory, so that the device installed with the device executes any one of the above-mentioned first to third aspects or any of the implementations thereof. method.
  • a computer-readable storage medium for storing a computer program, and the computer program causes a computer to execute any one of the above-mentioned first to third aspects or the method in each implementation manner thereof.
  • a computer program product including computer program instructions, the computer program instructions causing a computer to execute any one of the above first to third aspects or the method in each implementation manner.
  • a thirteenth aspect provides a computer program, which, when running on a computer, causes the computer to execute any one of the above first to third aspects or the method in each implementation manner.
  • the terminal device receives the signal sent by the first device for powering the terminal device and/or for the terminal device to perform backscatter communication, that is, the signal can be used for backscatter communication power supply signal and/or carrier signal.
  • the first device can be a third-party device, and the third-party device provides the power supply signal and/or carrier signal to the backscatter communication of the terminal device, instead of providing the power supply signal or carrier signal through the network device.
  • the first device can be a third-party device, and the third-party device provides the power supply signal and/or carrier signal to the backscatter communication of the terminal device, instead of providing the power supply signal or carrier signal through the network device.
  • the timing of the backscatter communication of the terminal equipment is not limited to the network equipment, which improves the flexibility of the backscatter communication of the terminal equipment.
  • the terminal device provides the energy supply signal and/or carrier signal of the backscatter communication through the third-party device, which can effectively solve the backscatter communication problem on the TDD
  • FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application.
  • Fig. 2 is a schematic diagram of a zero-power communication system according to an example of the present application.
  • Figure 3 is a schematic diagram of backscatter communication.
  • Figure 4 is a schematic diagram of energy harvesting.
  • Figure 5 is a circuit schematic diagram of resistive load modulation.
  • Fig. 6 is a schematic interaction diagram of a wireless communication method provided according to an embodiment of the present application.
  • FIG. 7 is a schematic schematic diagram of backscatter communication according to an embodiment of the present application.
  • 8 to 12 are schematic interaction diagrams of backscatter communication based on the embodiments of the present application.
  • FIG. 13 is a schematic schematic diagram of backscatter communication according to an embodiment of the present application.
  • 14 to 20 are schematic interaction diagrams of backscatter communication based on the embodiments of the present application.
  • FIG. 21 is a schematic schematic diagram of backscatter communication according to one embodiment of the present application.
  • Fig. 22 is a schematic block diagram of a terminal device provided according to an embodiment of the present application.
  • Fig. 23 is a schematic block diagram of a wireless communication device provided according to an embodiment of the present application.
  • Fig. 24 is a schematic block diagram of a network device provided according to an embodiment of the present application.
  • Fig. 25 is a schematic block diagram of a communication device provided according to an embodiment of the present application.
  • Fig. 26 is a schematic block diagram of a chip provided according to an embodiment of the present application.
  • Fig. 27 is a schematic block diagram of a communication system provided according to an embodiment of the present application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE-A Advanced long term evolution
  • NR New Radio
  • NTN Non-Terrestrial Networks
  • UMTS Universal Mobile Telecommunications System
  • WLAN Wireless Local Area Networks
  • WiFi Wireless Fidelity
  • 5G fifth-generation communication
  • D2D Device to Device
  • M2M Machine to Machine
  • MTC Machine Type Communication
  • V2V Vehicle to Vehicle
  • V2X Vehicle to everything
  • the communication system in the embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, may also be applied to a dual connectivity (Dual Connectivity, DC) scenario, and may also be applied to an independent (Standalone, SA) deployment Web scene.
  • Carrier Aggregation, CA Carrier Aggregation
  • DC Dual Connectivity
  • SA independent deployment Web scene
  • the communication system in the embodiment of the present application may be applied to an unlicensed spectrum, where the unlicensed spectrum may also be considered as a shared spectrum; or, the communication system in the embodiment of the present application may also be applied to a licensed spectrum, where, Licensed spectrum can also be considered as non-shared spectrum.
  • the embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, wherein the terminal equipment may also be referred to as user equipment (User Equipment, UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • user equipment User Equipment, UE
  • access terminal user unit
  • user station mobile station
  • mobile station mobile station
  • remote station remote terminal
  • mobile device user terminal
  • terminal wireless communication device
  • wireless communication device user agent or user device
  • the network device may be a device for communicating with the mobile device, and the network device may be an access point (Access Point, AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA , or a base station (NodeB, NB) in WCDMA, or an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, and an NR network
  • the network device may have a mobile feature, for example, the network device may be a mobile device.
  • the network equipment may be a satellite or a balloon station.
  • the satellite can be a low earth orbit (low earth orbit, LEO) satellite, a medium earth orbit (medium earth orbit, MEO) satellite, a geosynchronous earth orbit (geosynchronous earth orbit, GEO) satellite, a high elliptical orbit (High Elliptical Orbit, HEO) satellite. ) Satellite etc.
  • the network device may also be a base station installed on land, water, and other locations.
  • the network device may provide services for a cell, and the terminal device communicates with the network device through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device ( For example, a cell corresponding to a base station), the cell may belong to a macro base station, or may belong to a base station corresponding to a small cell (Small cell), and the small cell here may include: a metro cell (Metro cell), a micro cell (Micro cell), a pico cell ( Pico cell), Femto cell, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
  • the transmission resources for example, frequency domain resources, or spectrum resources
  • the cell may be a network device (
  • the cell may belong to a macro base station, or may belong to a base station corresponding to a small cell (Small cell)
  • the small cell here may include: a metro cell (Metro cell), a micro cell (Micro
  • the terminal device can be a station (STATION, ST) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, next-generation communication systems such as terminal devices in NR networks, or future Terminal equipment in the evolved Public Land Mobile Network (PLMN) network, terminal equipment in the cellular Internet of Things, terminal equipment in the cellular passive Internet of Things, etc.
  • PLMN Public Land Mobile Network
  • the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as aircraft, balloons and satellites) superior).
  • the terminal device may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, an augmented reality (Augmented Reality, AR) terminal Equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, or wireless terminal equipment in smart home.
  • a virtual reality (Virtual Reality, VR) terminal device an augmented reality (Augmented Reality, AR) terminal Equipment
  • wireless terminal equipment in industrial control wireless terminal equipment in self driving
  • wireless terminal equipment in remote medical wireless terminal equipment in smart grid
  • wireless terminal equipment in transportation safety wireless terminal equipment in smart city, or wireless terminal equipment in smart home.
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices, which is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not only a hardware device, but also achieve powerful functions through software support, data interaction, and cloud interaction.
  • Generalized wearable smart devices include full-featured, large-sized, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, etc., and only focus on a certain type of application functions, and need to cooperate with other devices such as smart phones Use, such as various smart bracelets and smart jewelry for physical sign monitoring.
  • the communication system 100 may include a network device 110, and the network device 110 may be a device for communicating with a terminal device 120 (or called a communication terminal, terminal).
  • the network device 110 can provide communication coverage for a specific geographical area, and can communicate with terminal devices located in the coverage area.
  • FIG. 1 exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within the coverage area. This application The embodiment does not limit this.
  • the communication system 100 may further include other network entities such as a network controller and a mobility management entity, which is not limited in this embodiment of the present application.
  • network entities such as a network controller and a mobility management entity, which is not limited in this embodiment of the present application.
  • a device with a communication function in the network/system in the embodiment of the present application may be referred to as a communication device.
  • the communication equipment may include a network equipment 110 and a terminal equipment 120 with communication functions.
  • the network equipment 110 and the terminal equipment 120 may be the specific equipment described above, and will not be repeated here.
  • the communication device may also include other devices in the communication system 100, such as network controllers, mobility management entities and other network entities, which are not limited in this embodiment of the present application.
  • the "indication" mentioned in the embodiments of the present application may be a direct indication, may also be an indirect indication, and may also mean that there is an association relationship.
  • a indicates B which can mean that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.
  • the term "corresponding" may indicate that there is a direct or indirect correspondence between the two, or that there is an association between the two, or that it indicates and is indicated, configuration and is configuration etc.
  • predefinition can be realized by pre-saving corresponding codes, tables or other methods that can be used to indicate related information in devices (for example, including terminal devices and network devices).
  • the implementation method is not limited.
  • pre-defined may refer to defined in the protocol.
  • the "protocol” may refer to a standard protocol in the communication field, for example, it may include the LTE protocol, the NR protocol, and related protocols applied in future communication systems, which is not limited in the present application.
  • a typical zero-power device is an RFID tag.
  • RFID technology is a technology that uses radio frequency signal spatial coupling to realize non-contact automatic transmission and identification of label information.
  • RFID tags are also called "radio frequency tags" or “electronic tags”.
  • the types of electronic tags classified according to different power supply methods may include active electronic tags, passive electronic tags and semi-passive electronic tags.
  • Active electronic tags also known as active electronic tags, means that the energy of the electronic tags is provided by the battery.
  • the battery, memory and antenna together constitute an active electronic tag, which is different from the passive radio frequency activation method. Set the frequency band to send information.
  • Passive electronic tags also known as passive electronic tags, do not support built-in batteries.
  • the tags When passive electronic tags are close to the reader, the tags are in the near-field range formed by the radiation of the reader antenna.
  • the electronic tag antenna generates an induced current through electromagnetic induction. , the induced current drives the chip circuit of the electronic label.
  • the chip circuit sends the identification information stored in the tag to the reader through the electronic tag antenna.
  • Semi-active electronic tags inherit the advantages of small size, light weight, low price and long service life of passive electronic tags.
  • the built-in battery supplies power to the RFID chip to increase the reading and writing distance of the tag and improve the reliability of communication.
  • the most basic RFID system includes electronic tags (TAG) and readers (Reader/Writer).
  • the electronic tag is composed of a coupling component and a chip.
  • the electronic tag may include an energy collection module, a backscatter communication module, a low-power computing module and a sensor module.
  • Each electronic tag has a unique electronic code, which is placed on the target to achieve the purpose of marking the target object.
  • the reader can not only read the information on the electronic tag, but also write the information on the electronic tag, and at the same time provide the electronic tag with the energy required for communication. as shown in picture 2.
  • After the electronic tag enters the electromagnetic field it receives the radio frequency signal sent by the reader.
  • the passive or semi-passive electronic tag can use the energy obtained from the electromagnetic field generated in the space to transmit the information stored in the electronic tag.
  • the reader reads the electronic The information transmitted by the tag and decode it to identify the electronic tag.
  • zero-power consumption communication or battery-free communication
  • key technologies in zero-power consumption communication are described below.
  • the zero-power consumption device receives the carrier signal sent by the backscatter reader, collects energy through the energy harvesting module, and then passes the low-power processing module (the The logic processing module) modulates the incoming wave signal and performs backscattering.
  • the terminal does not actively transmit signals, and realizes backscatter communication by modulating the incoming wave signal
  • the terminal does not rely on traditional active power amplifier transmitters, and uses low-power computing modules at the same time, which greatly reduces hardware complexity;
  • FIG. 4 is a schematic diagram of energy harvesting.
  • the energy harvesting module is used to realize the collection of space electromagnetic wave energy through electromagnetic induction, and then realize the driving of the load circuit (low power operation, sensor, etc.), thereby realizing battery-free communication.
  • Load modulation is a method often used by electronic tags to transmit data to readers. Load modulation adjusts the electrical parameters of the electronic tag oscillation circuit according to the beat of the data flow, so that the size and phase of the electronic tag impedance change accordingly, thus completing the modulation process.
  • Load modulation techniques mainly include resistive load modulation and capacitive load modulation.
  • FIG. 5 is a schematic diagram of resistive load modulation.
  • a resistor is connected in parallel with the load, which is called a load modulation resistor.
  • the resistor is turned on and off according to the clock of the data flow, and the on-off of the switch S is controlled by binary data code.
  • a capacitor is connected in parallel to the load, replacing the load modulating resistor in Figure 5 controlled by a binary data code.
  • RFID systems typically use one of the following encoding methods: reverse non-return-to-zero (NRZ) encoding, Manchester encoding, unipolar return-to-zero (Unipolar RZ) encoding, differential biphase (DBP) encoding, Differential encoding, pulse interval encoding (PIE), two-way spatial encoding (FM0), Miller (Miller) encoding and differential encoding, etc.
  • NRZ reverse non-return-to-zero
  • Manchester encoding Manchester encoding
  • unipolar return-to-zero (Unipolar RZ) encoding unipolar return-to-zero
  • DBP differential biphase
  • Differential encoding Differential encoding
  • PIE pulse interval encoding
  • FM0 two-way spatial encoding
  • Miller (Miller) encoding and differential encoding
  • the NR system integrates Time Division Duplex (TDD) and Frequency Division Duplex (FDD) working modes to realize a resource configuration structure that takes time slots as cycles.
  • TDD Time Division Duplex
  • FDD Frequency Division Duplex
  • the slot structure of NR is defined as follows:
  • Unify the FDD working mode and the TDD working mode do not set an independent working mode, but implement FDD by configuring all Orthogonal Frequency Division Multiplexing (OFDM) symbols as uplink or downlink in the TDD working mode The effect of working mode;
  • OFDM Orthogonal Frequency Division Multiplexing
  • the number of standardized uplink/downlink resource ratio configurations is increased from 7 to 254 in LTE. This design greatly improves the NR system's support for diversified services;
  • flexible (Flexible, F) symbols are also defined for more dynamic downlink/uplink configuration
  • the NR system still supports flexible configuration of the time slot format according to actual needs.
  • the backscatter communication of the tag is to modulate the carrier signal (which also plays the role of energy supply) sent by the reader, so as to carry information and send it to the reader. That is to say, the backscatter communication from the tag to the reader requires the reader to provide a carrier signal. This itself does not consider the uplink and downlink frame structure.
  • the TDD working mode and the FDD working mode are integrated, and the communication in the NR system needs to strictly consider the configuration of uplink and downlink resources.
  • the base station transmits signals on downlink resources, and the corresponding label should transmit signals on uplink resources.
  • the backscatter communication of the tag requires the reader to provide the carrier signal, that is, the signal transmitted by the tag on the uplink resource also needs the base station to provide the carrier signal, while in the TDD system, the base station can only provide the carrier signal on the downlink resource. Therefore, how to realize the backscatter communication of zero-power devices on the TDD spectrum is an urgent problem to be solved.
  • FIG. 6 is a schematic interaction diagram of a wireless communication method 200 according to an embodiment of the present application. As shown in FIG. 6, the method 200 includes the following content:
  • the terminal device receives a signal sent by the first device, where the signal is used to power the terminal device and/or use the terminal device to perform backscatter communication.
  • the embodiments of the present application can be applied to a cellular Internet of Things system, such as a cellular passive Internet of Things system, or can also be applied to other scenarios where a terminal device sends information to a network device through zero-power communication or battery-free communication. This application is not limited thereto.
  • the zero-power communication method may include the backscatter communication method, or may also include other methods for passive or semi-passive device communication introduced in standard evolution.
  • the backscatter communication method for communicating with the network device is taken as an example for illustration, but the present application is not limited thereto.
  • the terminal device is a zero-power consumption device, or other devices that do not actively transmit signals, but use signals sent by network devices or other devices to carry information.
  • the power supply mode of the terminal device may be passive or semi-passive.
  • the signal used to power the terminal device may include that the signal is used to power the circuit drive of the terminal device, or may also include performing the carrier signal to the terminal device Processing operations such as modulation and encoding are powered.
  • the use of the signal for the terminal device to perform backscatter communication may include that the terminal device may use the signal to carry information, or the signal may be used as an incident signal for backscatter communication
  • the source that is, the signal may serve as a carrier signal for backscatter communication.
  • the terminal device may modulate the signal to obtain a backscatter signal.
  • the signal when the signal is used to power the terminal device, it can be considered that the signal can be used as a power supply signal; when the signal is used for the terminal device to perform backscatter communication, It can be considered that the signal can be used as a carrier signal.
  • the energy supply signal and the carrier signal may be different signals, and in other embodiments, the energy supply signal may also be used as the carrier signal of the backscatter communication, that is, the two may be same signal.
  • the terminal device may modulate the energy supply signal to obtain a backscatter signal.
  • the signal that the first device may send to the terminal device may be used as an energy supply signal and/or a carrier signal. That is, the first device may serve as a power supply signal carrier and/or a carrier signal carrier for the terminal device to perform back-scatter communication.
  • the first device may be a device other than the network device corresponding to the terminal device, that is, the first device may be a third-party device.
  • the timing of the backscatter communication of the terminal equipment is not limited to the network equipment, which improves the flexibility of the backscatter communication of the terminal equipment.
  • the terminal equipment provides backscatter communication through a third-party
  • the energy supply signal and/or carrier signal of scatter communication can effectively solve the problem of backscatter communication on the TDD spectrum.
  • the network device corresponding to the terminal device may refer to a network device that provides services for the terminal device, or, the network device corresponding to the terminal device is a receiving end device of the backscatter signal sent by the terminal device.
  • a terminal device can provide a power supply signal and/or a carrier signal through a third-party device to implement Backscatter communication for end devices.
  • the network device may also provide a power supply signal and/or a carrier signal to the terminal device.
  • the frequency of the energy supply signal and the frequency of the carrier signal may be the same, or may also be different.
  • the frequencies of the energy supply signal and the carrier signal may be the same, or may also be different.
  • the present application does not limit the frequency of the energy supply signal, for example, the energy supply signal may be a low frequency signal, a medium frequency signal or a high frequency signal.
  • the present application does not limit the waveform of the energy supply signal, for example, the energy supply signal may be a sine wave, a square wave, a triangle wave, a pulse or a rectangular wave and the like.
  • the energy supply signal may be a continuous wave, or may also be a discontinuous wave, that is, an interruption for a certain period of time is allowed.
  • the present application does not limit the frequency of the carrier signal, for example, the carrier signal may be a low frequency signal, an intermediate frequency signal or a high frequency signal.
  • the present application does not limit the waveform of the carrier signal.
  • the carrier signal may be a sine wave, a square wave, a triangle wave, a pulse, or a rectangular wave.
  • the carrier signal may be a continuous wave, or may also be a discontinuous wave, that is, a certain period of interruption is allowed.
  • the power supply signal or carrier signal can be any signal or channel in the 3GPP standard, for example, Sounding Reference Signal (Sounding Reference Signal, SRS), Physical Random Access Channel (Physical Random Access Channel, PRACH) , Physical Uplink Control Channel (PUCCH), Physical Uplink Shared Channel (PUSCH), Physical Downlink Control Channel (PDCCH), Physical Downlink Shared Channel (Physical Downlink Shared Channel, PDSCH), Physical Broadcast Channel (Physical Broadcast Channel, PBCH), etc., or may also be a newly introduced signal or channel in standard evolution, and the present application is not limited thereto.
  • Sounding Reference Signal Sounding Reference Signal
  • PRACH Physical Random Access Channel
  • PUCCH Physical Uplink Control Channel
  • PUSCH Physical Uplink Shared Channel
  • PDCH Physical Downlink Control Channel
  • PDSCH Physical Downlink Shared Channel
  • PBCH Physical Broadcast Channel
  • the present application does not specifically limit the energy storage capability of the terminal device.
  • the terminal device needs to provide different auxiliary signals to perform backscatter communication.
  • the terminal device does not have an energy storage capability.
  • an energy supply signal and a carrier signal need to be provided for the terminal device to perform backscatter communication.
  • the energy supply signal and the carrier signal may be provided by the same device, or may be provided by different devices.
  • the terminal device has a certain energy storage capability.
  • the terminal device is a semi-passive device that can supply energy to its own circuit drive. In this case, it is only necessary to reverse the Scatter communications provide a carrier signal.
  • the energy supply method of the terminal device described in the embodiment of the present application does not necessarily mean that the terminal device must need energy supply. Yes, it just means that when the terminal equipment needs to be powered or needs to be powered, the terminal equipment can be supplied with energy based on the following methods.
  • the power supply signal when the first device sends a power supply signal to the terminal device, the power supply signal may include an uplink power supply signal and/or a downlink power supply signal. That is, the first device may be used as an uplink power supply device and/or a downlink power supply device of the terminal device.
  • the uplink power supply signal may refer to a signal for powering terminal devices on uplink resources
  • the downlink power supply signal may refer to a signal for power supply to terminal devices on downlink resources
  • the uplink power supply signal It may refer to a signal for supplying energy to a terminal device for the terminal device to perform uplink data transmission on the uplink resource
  • the downlink power supply signal may refer to the signal for supplying energy to the terminal device for the terminal device to perform downlink data transmission on the downlink resource transmitted signal.
  • the S210 may include:
  • the terminal device receives a first signal sent by the first device on an uplink resource, and the first signal may be used to power the terminal device.
  • the first device may provide a power supply signal to the terminal device on the uplink resource.
  • the first signal can be used as an uplink power supply signal.
  • the first signal is also used by the terminal device to perform backscatter communication.
  • the first signal may also be used as a carrier signal for backscatter communication.
  • the method 200 also includes:
  • the terminal device modulates the first signal to obtain a backscatter signal
  • the first signal can be used as an uplink power supply signal and a carrier signal.
  • the first signal is not used by the terminal device to perform backscatter communication.
  • the first carrier signal of the third device is used by the terminal device to perform backscatter communication.
  • the method 200 also includes:
  • the terminal device modulates the first carrier signal sent by the third device to obtain a backscatter signal
  • the third device and the first device may be the same device, or may be different devices.
  • two signals can be provided through the same device, which are used to supply energy to the terminal device and perform backscatter communication respectively.
  • different devices may also provide a signal for powering the terminal device and performing backscatter communication.
  • the S210 may include:
  • the terminal device receives a second signal sent by the first device on a downlink resource, where the second signal is used to power the terminal device.
  • the first device may provide an energy supply signal to the terminal device on the downlink resource.
  • the second signal can be used as a downlink power supply signal.
  • the terminal device performs energy collection based on the second signal, and may further perform downlink signal reception based on the collection capability, for example, receiving a scheduling signal of a network device.
  • the first device may only send the first signal on the uplink resource, or may only send the second signal on the downlink resource, or may also send the second signal on the uplink resource. After receiving the first signal, the second signal is sent on the downlink resource. That is to say, in the embodiment of the present application, the same device can provide the terminal device with the power supply on the uplink resource and the power supply on the downlink resource, and different devices can provide the terminal device with the power supply on the uplink resource and the energy supply on the downlink resource respectively. Energy supply on downlink resources.
  • the energy supply of the terminal device can be implemented in the following manner:
  • the first device is a third-party device, the first device provides power supply on uplink resources for the terminal device, and another third-party device (denoted as the second device) provides energy supply on the downlink resource for the terminal device. Energy Supply.
  • Mode 2 the first device is a third-party device, and the third-party device provides the terminal device with energy supply on uplink resources and energy supply on downlink resources.
  • the first device is a third-party device, the third-party device provides power supply on uplink resources for the terminal device, and the network device provides power supply on downlink resources for the terminal device.
  • Mode 4 In the FDD system, the network device provides power supply on downlink resources for the terminal device.
  • the downlink resources and uplink resources are frequency division multiplexed.
  • the first device may send a first signal on an uplink resource
  • the second device may send a second signal on a downlink resource.
  • the first device may be a smart device (such as a smart phone), a smart gateway, a dedicated energy supply node (such as a charging station), a micro base station, and the like.
  • the second device may be a base station, a smart device (such as a smart phone), a smart gateway, a dedicated energy supply node (such as a charging station), a micro base station, and the like.
  • the first device sending the first signal on the uplink resource may refer to the first device sending the first signal on part or all of the uplink resource.
  • the first signal is continuously sent on the uplink resource, or the first signal is not continuously sent on the uplink resource.
  • the present application does not limit the frequency of the first signal, for example, the first signal may be a low frequency signal, an intermediate frequency signal or a high frequency signal.
  • the present application does not limit the waveform of the first signal, for example, the first signal may be a sine wave, a square wave, a triangle wave, a pulse or a rectangular wave, and the like.
  • the first signal may be a continuous wave, or may also be a discontinuous wave.
  • the second device sending the second signal on the downlink resource may refer to the second device sending the second signal on part or all of the downlink resource, for example, continuously sending the second signal on the downlink resource Two signals, or, discontinuously sending the second signal on the downlink resource.
  • the present application does not limit the frequency of the second signal, for example, the second signal may be a low frequency signal, a medium frequency signal or a high frequency signal.
  • the present application does not limit the waveform of the second signal, for example, the second signal may be a sine wave, a square wave, a triangle wave, a pulse, or a rectangular wave.
  • the second signal may be a continuous wave, or may also be a discontinuous wave.
  • the frequency of the first signal and the frequency of the second signal are the same or different.
  • the first device transmits the first signal with a first transmit power
  • the second device transmits a second signal with a second transmit power
  • the first transmission power is the same as or different from the second transmission power.
  • the first transmission power may be predefined, indicated by the network device, or may be selected by the first device itself.
  • the second transmission power may be predefined, indicated by the network device, or may be selected by the second device itself.
  • the network device may control activation and/or interruption of the power supply signal. For example, when a network device needs to schedule a terminal device for communication, it is necessary to trigger the device to start sending a power supply signal in advance. For another example, when there is no scheduling of communication requirements of the terminal device for a period of time, the network device may also control the device to stop sending the power supply signal.
  • the first device may start or stop sending the first signal according to a control signal of the network device. For example, when a first control signal from a network device is received, start sending the first signal, and when a second control signal sent by the network device is received, stop sending the first signal.
  • the first device may not start sending the first signal based on a control signal of a network device, for example, the first device may start sending the first signal in a predefined time unit.
  • the stop of the first device from sending the first signal may not be based on a control signal of the network device, for example, the first device may stop sending the first signal after starting to send the first signal for a certain period of time. the first signal.
  • the duration may be predefined or indicated by the network device.
  • the second device may start or stop sending the second signal according to a control signal of the network device. For example, when the third control signal from the network device is received, start sending the second signal, and when receiving the fourth control signal sent by the network device, stop sending the second signal.
  • the second device may not start sending the second signal based on a control signal of the network device, for example, the second device may start sending the second signal in a predefined time unit.
  • the stop of the second device from sending the second signal may not be based on a control signal of the network device, for example, the first device may stop sending the second signal after starting to send the second signal for a certain period of time. the second signal.
  • the duration may be predefined or indicated by the network device.
  • the sending of the first signal by the first device on the uplink resource may be based on the scheduling of the network device.
  • the first device may send the first signal based on the fourth signal sent by the network device.
  • the first signal is sent by a signal, wherein the fourth signal is used to schedule or trigger the first device to send the first signal.
  • the first device sends the first signal on the uplink resource without scheduling, for example, the first device periodically sends the first signal on the uplink resource, or, according to a scheduled A defined manner is to send the first signal on the uplink resource.
  • the fourth signal is used to schedule the first device to start sending the first signal from the first time unit available for uplink data transmission. That is, when the uplink and downlink resources are switched, the first signal starts to be sent.
  • the fourth signal is used to schedule the first device to start sending the first signal before the first time unit available for uplink data transmission. Before the uplink and downlink resource switching, start sending the first signal in advance.
  • the fourth signal is used to schedule the first device to start sending the first signal after the first time unit available for uplink data transmission. After the uplink and downlink resources are switched, start sending the first signal again.
  • the fourth signal may include a second time unit offset K2, which is used to indicate the time unit in which the first device starts sending the first signal relative to the time unit in which the fourth signal is located. Offset.
  • the first device may determine a time unit position at which to start sending the first signal according to the second time unit offset and the time unit position at which the fourth signal is received.
  • the first device receives the fourth signal at time unit n, and the second time unit offset K2 is 3, then the first device can determine to start sending the first signal at time unit n+3 .
  • the first device receives the fourth signal at time unit n, and the second time unit offset K2 is 2, then it may be determined to start sending the first signal at time unit n+2.
  • the first device may determine the time unit position at which to start sending the first signal according to preset rules, for example, determine to receive The first uplink time unit after the time unit of the fourth signal is the time unit position at which the first signal starts to be sent.
  • the sending of the second signal by the second device on the downlink resource may be based on the scheduling of the network device.
  • the second device may send the second signal based on the fifth signal sent by the network device.
  • the second signal is sent by a signal, wherein the fifth signal is used to schedule or trigger the second device to send the second signal.
  • the second device sends the second signal on the downlink resource without scheduling, for example, the second device periodically sends the second signal on the uplink resource, or, according to a scheduled A defined manner is to send the second signal on the uplink resource.
  • the fifth signal is used to schedule the second device to start sending the second signal in the next time unit, or in a specific downlink time unit.
  • the fifth signal may include a third time unit offset, which is used to indicate that the time unit at which the second device starts to send the second signal is offset from the time unit at which the fifth signal is located. displacement.
  • the second device may determine a time unit position at which to start sending the second signal according to the third time unit offset and the time unit position at which the fifth signal is received. For example, the second device receives the fifth signal at time unit n, and the third time unit offset K2 is 2, then the first device may determine to start sending the first signal at time unit n+2.
  • the first device may determine the time unit position at which to start sending the second signal according to preset rules, for example, determine to receive The next downlink time unit of the time unit of the fifth signal is the time unit position at which the second signal starts to be sent.
  • the fourth signal may further include sixth indication information, which is used to indicate the transmission power of the first signal. That is, the network device may simultaneously configure the sending power of the first signal when scheduling the first device to send the first signal.
  • the fifth signal may further include seventh indication information, which is used to indicate the transmission power of the second signal. That is, the network device may simultaneously configure the sending power of the second signal when scheduling the second device to send the second signal.
  • the embodiment of the present application does not specifically limit the specific position in the time domain at which the first device sends the first signal and a manner of determining the position in the time domain.
  • the first device sends the first signal within a first time window. That is, the first device may send the first signal within a continuous period of time.
  • the first time window is determined according to predefined information and/or indication information of the network device.
  • the starting position and length of the first time window are predefined.
  • the first time window is a periodic time window, and the starting time unit and length of the first time window within a cycle can be predefined, then the first device can start The time unit and the length determine the specific position of the first time window, and the first signal may further be sent within the first time window.
  • time unit in this embodiment of the present application may be any time measurement unit, such as symbol, time slot, subframe, frame, and so on.
  • the position of the first time window may be indicated by the network device.
  • the network device when the network device schedules the first device to send the first signal, it may simultaneously indicate the scheduling information of the first signal, that is, the fourth signal may include the scheduling information of the first signal, and the first device may transmit the first signal according to the The scheduling information of the first signal determines the location of the first time window.
  • the scheduling information of the first signal includes a second time unit offset K2 and/or a first duration
  • the second time unit offset K2 is used to instruct the first device to start sending the first signal.
  • a time unit offset of a time unit of a signal relative to a time unit where the fourth signal is located, and the first duration is used to indicate a duration for the first device to send the first signal.
  • the first time window may be one of multiple predefined time windows.
  • the network device when the network device schedules the first device to send the first signal, it may simultaneously indicate one of the plurality of predefined time windows.
  • the fourth signal may include second indication information, where the second indication information is used to indicate a time window in multiple predefined time windows.
  • the first device may send the first signal according to the time window indicated by the network device.
  • the first device sends the first signal on a first set of time units.
  • the first set of time units is determined according to predefined information and/or indication information of the network device.
  • the first set of time units is predefined.
  • the first set of time units is a periodic set of time units, and the time units in the first set of time units may be continuous or discontinuous, which is not limited in the present application.
  • the first set of time units is one of a plurality of predefined sets of time units.
  • the network device when scheduling the first device to send the first signal, may simultaneously indicate one of the plurality of predefined time unit sets.
  • the fourth signal may include third indication information, where the third indication information is used to indicate one of multiple predefined time unit sets. Further, the first device may send the first signal according to the time unit set indicated by the network device.
  • the embodiment of the present application does not specifically limit the specific position in the time domain at which the second device sends the second signal and a manner of determining the position in the time domain.
  • the second device sends the second signal within a second time window. That is, the second device may send the second signal within a continuous period of time.
  • the second time window is determined according to predefined information and/or indication information of the network device.
  • the start position and length of the second time window are predefined.
  • the second time window is a periodic time window, and the start time unit and length of the second time window within a cycle can be predefined, then the second device can start The time unit and the length determine the specific position of the second time window, and the second signal can further be sent within the second time window.
  • the position of the second time window may be indicated by the network device.
  • the network device when the network device schedules the second device to send the second signal, it may simultaneously indicate the scheduling information of the second signal, that is, the fifth signal may include the scheduling information of the second signal, and the second device may transmit the second signal according to the The scheduling information of the second signal determines the location of the second time window.
  • the scheduling information of the second signal includes a third time unit offset K3 and/or a second duration
  • the third time unit offset K3 is used to instruct the second device to start sending the first
  • the second duration is used to indicate the duration of the second device sending the second signal.
  • the second device may determine a time unit position at which to start sending the second signal according to the third time unit offset and the time unit position at which the fifth signal is received.
  • the second time window may be one of multiple predefined time windows.
  • the network device when the network device schedules the second device to send the second signal, it may simultaneously indicate one of the plurality of predefined time windows.
  • the fifth signal may include fourth indication information, where the fourth indication information is used to indicate a time window in a plurality of predefined time windows.
  • the second device may send the second signal according to the time window indicated by the network device.
  • the second device sends the second signal on a second set of time units.
  • the second set of time units is determined according to predefined information and/or indication information of the network device.
  • the second set of time units is predefined.
  • the second time unit set is a periodic time unit set, and the time units in the second time unit set may be continuous or discontinuous, which is not limited in the present application.
  • the second set of time units is one of a plurality of predefined sets of time units.
  • the network device when the network device schedules the second device to send the second signal, it may simultaneously indicate one of the plurality of predefined time unit sets.
  • the fifth signal may include fifth indication information, where the fifth indication information is used to indicate one of multiple predefined time unit sets.
  • the second device may send the second signal according to the time unit set indicated by the network device.
  • the backscatter communication performed by the terminal device may also be scheduling-free, for example, when the terminal device has an uplink transmission requirement, backscatter is performed based on the capability obtained from the uplink energy supply signal and the carrier signal communication.
  • the backscatter communication performed by the terminal device is based on the scheduling or triggering of the network device.
  • the terminal device may In some cases, backscatter communication is performed, wherein the third information is used to schedule or trigger the terminal device to perform backscatter communication.
  • the third signal includes first indication information, the first indication information is used to indicate a first time unit offset K1, and the first time unit offset K1 is used to indicate the A time unit offset of the time unit in which the terminal device sends the backscatter signal relative to the time unit in which the third signal is located.
  • the terminal device receives the third signal at time unit n+1, and the offset K1 of the first time unit is 3, then the terminal device can determine to perform reverse signal at time unit n+4. Scatter communication.
  • the network device when the third signal indicates the first time unit offset, the network device needs to control the backscattering determined according to the first time unit offset.
  • the time unit of communication is the uplink resource.
  • the terminal device may determine to perform backscatter according to preset rules A unit of time for communication.
  • the terminal device may determine to perform backscatter communication at a time unit next to the time unit where the third signal is located. For example, the network device sends a third signal at time unit i, which is used to trigger the terminal device to perform backscatter communication at time unit i+1. In this case, the network device needs to control scheduling to ensure that time unit i is a downlink resource and time unit i+1 is an uplink resource.
  • the terminal device receives the third signal at time unit n+3, and the third signal does not carry the offset of the first time unit, then the terminal device can determine that in the next time unit, that is, time Backscatter communication on unit n+4.
  • the terminal device may determine to perform backscatter communication on the first uplink resource (or, the first uplink time unit) after the time unit where the third signal is located. For example, the network device sends the third signal on time unit i, and time unit i is a downlink resource, and time unit i+j is the first uplink resource after time unit i, then the terminal device performs a reverse signal on time unit i+j. Scatter communication.
  • the terminal device receives the third signal at time unit n+2, and the third signal does not carry the offset of the first time unit, then the terminal device can determine the first Backscatter communication is performed on uplink resources, that is, time unit n+4.
  • this application does not limit the timing of sending the third signal and the fourth signal by the network device, but it needs to ensure that the first device can provide a corresponding power supply signal when the terminal device performs backscatter communication.
  • Embodiment 2 Corresponding to the aforementioned energy supply mode 2
  • the first device may send a first signal on an uplink resource, and send a second signal on a downlink resource. That is, one device can provide the uplink power supply signal and the downlink power supply signal of the terminal device.
  • Embodiment 1 is the Embodiment 2.
  • the relevant implementation of the first device sending the first signal can refer to the related implementation of the first device sending the first signal in Embodiment 1, and the first device in Embodiment 2 sends the second signal
  • the relevant implementation of the second device sending the second signal in Embodiment 1 can refer to the related implementation of the second device sending the second signal in Embodiment 1.
  • details are not repeated here.
  • the first device may send continuous powering signals on the downlink resource and the uplink resource.
  • the first signal and the second signal may be considered to be from the same Signal.
  • the first device uses the same sending power to send the first signal and the second signal.
  • the first device transmits the first signal and transmits the second signal using independent transmit powers.
  • the first device transmits a first signal with a first transmit power P1 and transmits a second signal with a second transmit power P2 .
  • the first transmission power is the same as or different from the second transmission power.
  • the sending power of the first signal and the second signal may be predefined, or indicated by the network device, or may be selected by the first device itself.
  • the first device switches the transmission power of the enabling signal on the uplink resource and the downlink resource by itself. For example, on the downlink resources, the second signal is sent at the second transmission power P2, and on the uplink resources, the first signal is sent at the first transmission power P1.
  • the first device switches the sending power of the power supply signal based on an instruction of the network device.
  • the first device may receive a power switching indication signal from a network device, and switch the transmission power according to the power switching indication signal.
  • the power switching indication signal may be used to indicate an opportunity for the first device to perform power switching and/or power related information after switching.
  • the power switching indication signal is used to indicate a time unit offset K, indicating a time unit offset of the time unit in which the first device performs power switching relative to the time unit in which the power switching indication signal is received.
  • the power switching indication signal may be used to indicate the transmission power of the switched energy supply signal, or used to indicate a power adjustment amount, indicating that the transmission power of the switched energy supply signal is relative to that of the pre-switched energy supply signal.
  • the adjustment amount of the transmit power may be used to indicate the transmission power of the switched energy supply signal, or used to indicate a power adjustment amount, indicating that the transmission power of the switched energy supply signal is relative to that of the pre-switched energy supply signal. The adjustment amount of the transmit power.
  • the switching timing at which the first device performs power switching may be predefined, or may also be based on an indication of a power switching instruction signal.
  • the power switching instruction signal does not indicate a switching opportunity, it may be considered that the power switching takes effect immediately, that is, the first device performs power switching immediately after receiving the power switching instruction signal.
  • the power switching instruction signal does not indicate the switching opportunity
  • the power switching instruction signal does not indicate the switching opportunity, it may be considered that the power switching takes effect in the first uplink time unit after that, that is, the first device receives the power switching instruction signal In this case, power switching is performed on the first uplink time unit after that.
  • the switched transmit power of the first device may be predefined, or may also be based on an indication of the power switching instruction signal, for example, the transmit power of the uplink power supply signal is predefined, then the first device may be based on The predefined transmission power sends an uplink energy supply signal, or, if the power switching instruction signal sent by the network device indicates the switched transmission power, in this case, the first device may also determine to send the uplink energy supply signal according to the instruction of the network device The transmit power used by the signal.
  • the network device may control activation and/or interruption of the power supply signal. For example, when the network device needs to schedule the terminal device to perform communication, the first device needs to be triggered in advance to start sending the power supply signal. For another example, when there is no scheduling of communication requirements of the terminal device within a period of time, the network device may also control the first device to stop sending the power supply signal.
  • the uplink power supply signal and the downlink power supply signal may be controlled by the same control signal.
  • the network device may control the first device to start power supply through a control signal, and then the first device starts to send the first signal on the uplink resource and send the second signal on the downlink resource.
  • the network device may control the first device to stop power supply through a control signal, and then the first device stops sending the first signal on the uplink resource and stops sending the second signal on the downlink resource.
  • the uplink power supply signal and the downlink power supply signal may be controlled by independent control signals.
  • the first device can independently control uplink energy supply and downlink energy supply according to independent control signals.
  • the sending of the first signal by the first device on the uplink resource may be based on the scheduling of the network device, or may be free from scheduling, for example, the first device periodically transmits the first signal on the uplink resource Send the first signal on the uplink, or send the first signal on the uplink resource in a predefined manner.
  • the scheduling manner of the first signal in Embodiment 1 refer to the scheduling manner of the first signal in Embodiment 1, and for the sake of brevity, details are not repeated here.
  • the sending of the second signal by the first device on the downlink resource may be based on the scheduling of the network device, or may be free from scheduling, for example, the first device periodically transmits the second signal on the uplink resource Send the second signal on the uplink, or send the second signal on the uplink resource in a predefined manner.
  • the scheduling manner of the second signal in Embodiment 1 refer to the scheduling manner of the second signal in Embodiment 1, and for the sake of brevity, details are not repeated here.
  • the first signal and the second signal may be scheduled based on the same signal. For example, when the first device receives the scheduling signal of the power supply signal sent by the network device, Based on the scheduling signal, the first signal is sent on the uplink resource and the second signal is sent on the downlink resource. As a specific example, the first device may send continuous energy supply signals on the uplink resource and the downlink resource based on the scheduling signal.
  • the backscatter communication performed by the terminal device may also be free of scheduling, for example, when the terminal device is required for uplink transmission, based on the capability obtained from the uplink power supply signal and the carrier signal Backscatter communication.
  • the terminal device performs backscatter communication based on the scheduling or triggering of the network device. For example, as shown in FIGS. 14 to 20 , the terminal device may In the case of three signals, backscatter communication is performed, wherein the third information is used to schedule or trigger the terminal device to perform backscatter communication.
  • the third signal includes first indication information, the first indication information is used to indicate a first time unit offset K1, and the first time unit offset K1 is used to indicate the A time unit offset of the time unit in which the terminal device sends the backscatter signal relative to the time unit in which the third signal is located.
  • the terminal device receives the third signal at time unit n, and the first time unit offset K1 is 4, then the terminal device can determine to perform the signal on time unit n+4. Backscatter communication.
  • the network device when the third signal indicates the first time unit offset, the network device needs to control the backscattering determined according to the first time unit offset.
  • the time unit of communication is the uplink resource.
  • the terminal device may determine to perform backscatter according to preset rules A unit of time for communication.
  • the terminal device may determine to perform backscatter communication at a time unit next to the time unit where the third signal is located. For example, the network device sends a third signal at time unit i, which is used to trigger the terminal device to perform backscatter communication at time unit i+1. In this case, the network device needs to control scheduling to ensure that time unit i is a downlink resource and time unit i+1 is an uplink resource.
  • the terminal device receives the third signal at time unit n+3, and the third signal does not carry the first time unit offset, then the terminal device can determine that in the next time unit , that is, backscatter communication is performed on time unit n+4.
  • the terminal device may determine to perform backscatter communication on the first uplink resource (or, the first uplink time unit) after the time unit where the third signal is located. For example, the network device sends the third signal on time unit i, time unit i is a downlink resource, and time unit i+j is the first uplink resource after time unit i, then the terminal device performs a reverse signal on time unit i+j Scatter communication.
  • the terminal device receives the third signal at time unit n+2, and the third signal does not carry the offset of the first time unit, then the terminal device can determine the first Backscatter communication is performed on uplink resources, that is, time unit n+4.
  • Embodiment 3 Corresponding to the aforementioned energy supply mode 3
  • the first device may send a first signal on an uplink resource
  • the network device may send a second signal on a downlink resource. That is, the third-party device can provide the energy supply signal required for the uplink transmission of the terminal equipment, and the network equipment can provide the downlink energy supply signal.
  • the related implementation of sending the first signal by the first device may refer to the specific implementation of sending the first signal by the first device in Embodiment 1. Let me repeat.
  • the transmission power used by the first device to send the first signal and the transmission power used by the network device to send the second signal may be the same, or may also be different .
  • the frequency point of the first signal sent by the first device and the frequency point of the second signal sent by the network device may be the same, or may also be different.
  • Embodiment 3 the manner in which the terminal device performs backscatter communication may refer to the relevant descriptions in Embodiment 1 and Embodiment 2, and details are not repeated here for brevity.
  • Embodiment 4 Corresponding to the aforementioned energy supply mode 4
  • Embodiment 4 can be applied to an FDD system.
  • the network device can send the second signal on the downlink resource, and correspondingly, the terminal device receives the second signal on the downlink resource. According to the second signal for energy harvesting.
  • the terminal device may also perform second signal modulation, frequency offset and other processing on the second signal to obtain the corresponding frequency
  • the backscatter signal is sent to the network device on the uplink resource.
  • Embodiment 4 for the manner in which the terminal device performs backscatter communication, reference may be made to the relevant descriptions in Embodiment 1 and Embodiment 2, and details are not repeated here for brevity.
  • a third-party device can be used to provide the terminal device with an energy supply signal and/or a carrier signal.
  • the same third-party device can be used to provide the terminal device with an uplink energy supply signal and a downlink
  • the energy supply signal in another specific implementation, can provide the terminal equipment with an uplink energy supply signal and a downlink energy supply signal through different third-party equipment, and in another specific implementation, the terminal equipment can be provided with a downlink energy supply signal through a network equipment
  • an uplink energy supply signal and a downlink energy supply signal may also be provided to the terminal equipment through the network equipment).
  • the uplink energy supply signal can be used as the carrier signal for the terminal device to perform backscatter communication, or the terminal device can also use a separate carrier signal for backscatter communication, thereby solving the problem of backscatter communication of the terminal device in the TDD spectrum. Powering and Carrier Problems in Scattered Communications.
  • Fig. 22 shows a schematic block diagram of a terminal device 400 according to an embodiment of the present application.
  • the terminal device 400 includes:
  • the communication unit 410 is configured to receive a signal sent by a first device, the signal is used to power the terminal device and/or use the terminal device to perform backscatter communication, and the first device is for the terminal device to perform backscatter communication.
  • Terminal equipment Other equipment other than network equipment that provides services.
  • the communication unit 410 is also used for:
  • the first signal is used by the terminal device to perform backscatter communication
  • the terminal device 400 further includes:
  • a processing unit configured to modulate the first signal to obtain a backscatter signal
  • the communication unit 410 is further configured to: send the backscatter signal to the network device.
  • the first signal is not used by the terminal device to perform backscatter communication
  • the terminal device 400 further includes:
  • a processing unit configured to modulate the first carrier signal sent by the second device to obtain a backscatter signal
  • the communication unit 410 is further configured to: send the backscatter signal to the network device.
  • the communication unit 410 is also used for:
  • the communication unit 410 is also used for:
  • the third signal includes first indication information, and the first indication information is used to indicate a first time unit offset, and the first time unit offset is used to indicate that the terminal device A time unit offset of the time unit in which the backscatter signal is sent relative to the time unit in which the third signal is located.
  • the communication unit 410 is also used for:
  • the third signal does not indicate time information for the terminal device to send a backscatter signal, perform backscatter communication on a time unit next to the time unit where the third signal is located;
  • the third signal does not instruct the terminal device to send the time information of the backscatter signal, perform backscatter communication on the first uplink resource after the time unit where the third signal is located.
  • the terminal device is a zero-power consumption device
  • the first device is a dedicated energy supply node
  • the first device is not a zero-power consumption device.
  • the above-mentioned communication unit may be a communication interface or a transceiver, or an input-output interface of a communication chip or a system-on-chip.
  • the aforementioned processing unit may be one or more processors.
  • terminal device 400 may correspond to the terminal device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the terminal device 400 are to realize the For the sake of brevity, the corresponding process of the terminal device in the shown method 200 will not be repeated here.
  • Fig. 23 shows a schematic block diagram of a wireless communication device 800 according to an embodiment of the present application.
  • the device 800 includes:
  • the communication unit 810 is configured to send a signal to the terminal device, where the signal is used to supply energy to the terminal device and/or to perform backscatter communication for the terminal device, wherein the device is for the terminal device Devices other than network devices that provide the service.
  • the communication unit 810 is also used for:
  • the communication unit 810 is also used for:
  • the fourth signal is used to schedule the device to start sending the first signal from the first time unit available for uplink data transmission;
  • the fourth signal is used to schedule the device to start sending the first signal before the first time unit available for uplink data transmission;
  • the fourth signal is used to schedule the device to start sending the first signal after the first time unit available for uplink data transmission.
  • the communication unit 810 is further configured to: send the first signal within a first time window.
  • the first time window is determined according to predefined information and/or indication information of the network device.
  • the first time window is determined according to the scheduling information of the first signal in the fourth signal sent by the network device, where the fourth signal is used to schedule or trigger the device to send the first signal.
  • the scheduling information of the first signal includes a second time unit offset and/or a first duration
  • the second time unit offset is used to instruct the device to start sending the first signal.
  • a time unit offset of the time unit of the signal relative to the time unit where the fourth signal is located, and the first duration is used to indicate a duration for the device to send the first signal.
  • the scheduling information of the first signal includes second indication information, where the second indication information is used to indicate a time window in a plurality of predefined time windows.
  • the communication unit 810 is further configured to: send the first signal on a set of first time units.
  • the first set of time units is determined according to predefined information and/or indication information of the network device.
  • the indication information of the network device includes third indication information, where the third indication information is used to indicate one of a plurality of predefined time unit sets.
  • the first signal is sent by the device with a first transmit power, where the first transmit power is predefined, or configured by the network device, or configured by the network device determined by the above equipment.
  • the communication unit 810 is also used for:
  • the communication unit 810 is also used for:
  • the communication unit 810 is also used for:
  • the network device receiving a fifth signal sent by the network device, where the fifth signal is used to schedule or trigger the device to send the second signal, and the second signal is sent by the device based on the fifth signal.
  • the communication unit 810 is further configured to: send the second signal within a second time window.
  • the second time window is determined according to predefined information and/or indication information of the network device.
  • the second time window is determined according to scheduling information of the second signal in the fifth signal, where the fifth signal is used to schedule or trigger the device to send the second signal.
  • the scheduling information of the second signal includes a third time unit offset and/or a second duration
  • the third time unit offset is used to instruct the device to start sending the second signal.
  • a time unit offset of the time unit of the signal relative to the time unit where the fifth signal is located, and the second duration is used to indicate a duration for the device to send the second signal.
  • the scheduling information of the second signal includes fourth indication information, where the fourth indication information is used to indicate a time window in a plurality of predefined time windows.
  • the communication unit 810 is also used for:
  • the second signal is sent on a second set of time units.
  • the second set of time units is determined according to predefined information and/or indication information of the network device.
  • the indication information of the network device includes fifth indication information, where the fifth indication information is used to indicate one of a plurality of predefined time unit sets.
  • the second signal is sent by the device with a second transmit power, where the second transmit power is predefined, or configured by the network device, or configured by the determined by the above equipment.
  • the communication unit 810 is also used for:
  • the device 800 also includes:
  • a processing unit configured to switch the power used for sending signals from the second sending power to the first sending power according to the power switching instruction signal, where the first sending power is the first sending power of the device on the uplink resource.
  • the transmission power adopted by a signal, the first signal is used to power the terminal device and/or use the terminal device to perform backscatter communication.
  • the processing unit is specifically used for:
  • the above-mentioned communication unit 810 may be a communication interface or a transceiver, or an input-output interface of a communication chip or a system on chip.
  • the aforementioned processing unit may be one or more processors.
  • the device 800 according to the embodiment of the present application may correspond to the first device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the device 800 are respectively in order to realize the The corresponding process of the first device in the method embodiment is shown, and for the sake of brevity, details are not repeated here.
  • Fig. 24 is a schematic block diagram of a network device according to an embodiment of the present application.
  • the network device 500 of Figure 24 includes:
  • the communication unit 510 is configured to send a scheduling signal to the first device, where the scheduling signal is used to schedule or trigger the first device to send a signal to the terminal device, where the signal is used to supply energy and/or use the terminal device performing backscatter communication with the terminal device.
  • the scheduling signal includes a fourth signal
  • the communication unit 510 is further configured to:
  • the fourth signal is used to schedule the first device to start sending the first signal from the first time unit available for uplink data transmission;
  • the fourth signal is used to schedule the first device to start sending the first signal before the first time unit available for uplink data transmission;
  • the fourth signal is used to schedule the first device to start sending the first signal after the first time unit available for uplink data transmission.
  • the fourth signal is used to schedule the first device to send the first signal within a first time window.
  • the fourth signal includes scheduling information of the first signal, and the first time window is determined according to the scheduling information of the first signal.
  • the scheduling information of the first signal includes a second time unit offset and/or a first duration
  • the second time unit offset is used to instruct the first device to start sending the The time unit offset of the time unit of the first signal relative to the time unit of the fourth signal
  • the first duration is used to indicate the duration of the first device sending the first signal
  • the scheduling information of the first signal includes second indication information, where the second indication information is used to indicate a time window in a plurality of predefined time windows.
  • the fourth signal is used to schedule the first device to send the first signal on a first set of time units.
  • the fourth signal includes third indication information, and the third indication information is used to indicate one of a plurality of predefined time unit sets.
  • the fourth signal includes sixth indication information, where the sixth indication information is used to indicate the transmission power of the first signal.
  • the scheduling signal includes a fifth signal
  • the communication unit 510 is further configured to:
  • the fifth signal is used to schedule the first device to send the second signal within a second time window.
  • the fifth signal includes scheduling information of the second signal, and the second time window is determined according to the scheduling information of the second signal.
  • the scheduling information of the second signal includes a third time unit offset and/or a second duration
  • the third time unit offset is used to instruct the first device to start sending the The time unit offset of the time unit of the second signal relative to the time unit of the fifth signal
  • the second duration is used to indicate the duration of the second signal sent by the first device
  • the scheduling information of the second signal includes fourth indication information, where the fourth indication information is used to indicate the second time window in the plurality of predefined time windows.
  • the fifth signal is used to schedule the first device to send the second signal on a second set of time units.
  • the second set of time units is determined according to predefined information and/or indication information of the network device.
  • the indication information of the network device includes fifth indication information, where the fifth indication information is used to indicate one of a plurality of predefined time unit sets.
  • the fifth signal includes seventh indication information, where the seventh indication information is used to indicate the transmission power of the second signal.
  • the communication unit 510 is also used for:
  • the communication unit 510 is also used for:
  • the third signal includes first indication information, and the first indication information is used to indicate a first time unit offset, and the first time unit offset is used to indicate that the terminal device A time unit offset of the time unit in which the backscatter signal is sent relative to the time unit in which the third signal is located.
  • the communication unit 510 is also used for:
  • the power switching instruction signal is used to instruct the first device to switch the transmission power of the signal from the second transmission power to the first transmission power, wherein the first transmission power
  • the first transmission power is the transmission power of the first device sending the first signal on the uplink resource
  • the second transmission power is the transmission power of the first device sending the second signal on the downlink resource
  • the first signal Used to supply energy to the terminal device and/or to perform backscatter communication on the terminal device, the second signal is used to supply energy to the terminal device.
  • the above-mentioned communication unit 510 may be a communication interface or a transceiver, or an input-output interface of a communication chip or a system on chip.
  • the aforementioned processing unit may be one or more processors.
  • the network device 500 may correspond to the network device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the network device 500 are to realize the For the sake of brevity, the corresponding flow of the network device in the shown method will not be repeated here.
  • FIG. 25 is a schematic structural diagram of a communication device 600 provided by an embodiment of the present application.
  • the communication device 600 shown in FIG. 14 includes a processor 610, and the processor 610 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.
  • the communication device 600 may further include a memory 620 .
  • the processor 610 can invoke and run a computer program from the memory 620, so as to implement the method in the embodiment of the present application.
  • the memory 620 may be an independent device independent of the processor 610 , or may be integrated in the processor 610 .
  • the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, specifically, to send information or data to other devices, or receive other Information or data sent by the device.
  • the transceiver 630 may include a transmitter and a receiver.
  • the transceiver 630 may further include antennas, and the number of antennas may be one or more.
  • the communication device 600 may specifically be the network device of the embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, details are not repeated here. .
  • the communication device 600 may specifically be the first device in the embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the first device in each method of the embodiment of the present application. Let me repeat.
  • the communication device 600 may specifically be a terminal device in the embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the terminal device in each method of the embodiment of the present application. For the sake of brevity, details are not repeated here. .
  • FIG. 26 is a schematic structural diagram of a chip according to an embodiment of the present application.
  • the chip 700 shown in FIG. 26 includes a processor 710, and the processor 710 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.
  • the chip 700 may further include a memory 720 .
  • the processor 710 can invoke and run a computer program from the memory 720, so as to implement the method in the embodiment of the present application.
  • the memory 720 may be an independent device independent of the processor 710 , or may be integrated in the processor 710 .
  • the chip 700 may also include an input interface 730 .
  • the processor 710 can control the input interface 730 to communicate with other devices or chips, specifically, can obtain information or data sent by other devices or chips.
  • the chip 700 may also include an output interface 740 .
  • the processor 710 can control the output interface 740 to communicate with other devices or chips, specifically, can output information or data to other devices or chips.
  • the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the network device in the methods of the embodiment of the present application.
  • the chip can implement the corresponding processes implemented by the network device in the methods of the embodiment of the present application.
  • the chip can be applied to the terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the terminal device in the methods of the embodiments of the present application.
  • the chip can implement the corresponding processes implemented by the terminal device in the methods of the embodiments of the present application.
  • the chip can be applied to the first device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the first device in the methods of the embodiments of the present application.
  • the chip can implement the corresponding processes implemented by the first device in the methods of the embodiments of the present application.
  • the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.
  • FIG. 27 is a schematic block diagram of a communication system 900 provided by an embodiment of the present application.
  • the communication system 900 includes a terminal device 910 , a network device 920 and a first device 930 .
  • the terminal device 910 can be used to realize the corresponding functions realized by the terminal device in the above method
  • the network device 920 can be used to realize the corresponding functions realized by the network device in the above method
  • the first device 930 can use
  • the corresponding functions implemented by the first device in the above uplink method will not be repeated here.
  • the processor in the embodiment of the present application may be an integrated circuit chip, which has a signal processing capability.
  • each step of the above-mentioned method embodiments may be completed by an integrated logic circuit of hardware in a processor or instructions in the form of software.
  • the above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Program logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • a general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.
  • the steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiments of the present application may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memories.
  • the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electronically programmable Erase Programmable Read-Only Memory (Electrically EPROM, EEPROM) or Flash.
  • the volatile memory can be Random Access Memory (RAM), which acts as external cache memory.
  • RAM Static Random Access Memory
  • SRAM Static Random Access Memory
  • DRAM Dynamic Random Access Memory
  • Synchronous Dynamic Random Access Memory Synchronous Dynamic Random Access Memory
  • SDRAM double data rate synchronous dynamic random access memory
  • Double Data Rate SDRAM, DDR SDRAM enhanced synchronous dynamic random access memory
  • Enhanced SDRAM, ESDRAM synchronous connection dynamic random access memory
  • Synchlink DRAM, SLDRAM Direct Memory Bus Random Access Memory
  • Direct Rambus RAM Direct Rambus RAM
  • the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM), etc. That is, the memory in the embodiments of the present application is intended to include, but not be limited to, these and any other suitable types of memory.
  • the embodiment of the present application also provides a computer-readable storage medium for storing computer programs.
  • the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the methods of the embodiments of the present application.
  • the computer program enables the computer to execute the corresponding processes implemented by the network device in the methods of the embodiments of the present application.
  • the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in the various methods of the embodiments of the present application , for the sake of brevity, it is not repeated here.
  • the computer-readable storage medium can be applied to the first device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the first device in the methods of the embodiments of the present application.
  • the computer program enables the computer to execute the corresponding processes implemented by the first device in the methods of the embodiments of the present application.
  • the embodiment of the present application also provides a computer program product, including computer program instructions.
  • the computer program product may be applied to the network device in the embodiment of the present application, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the Let me repeat for the sake of brevity, the Let me repeat.
  • the computer program product can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in the methods of the embodiments of the present application, For the sake of brevity, details are not repeated here.
  • the computer program product may be applied to the first device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the first device in the various methods of the embodiments of the present application.
  • the computer program instructions cause the computer to execute the corresponding processes implemented by the first device in the various methods of the embodiments of the present application.
  • the This will not be repeated here.
  • the embodiment of the present application also provides a computer program.
  • the computer program can be applied to the network device in the embodiment of the present application.
  • the computer program executes the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program executes the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the computer program can be applied to the mobile terminal/terminal device in the embodiment of the present application.
  • the computer program executes each method in the embodiment of the present application to be implemented by the mobile terminal/terminal device
  • the corresponding process will not be repeated here.
  • the computer program can be applied to the first device in the embodiment of the present application, and when the computer program is run on the computer, the computer executes the corresponding process implemented by the first device in each method of the embodiment of the present application, For the sake of brevity, details are not repeated here.
  • the disclosed systems, devices and methods may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disc and other media that can store program codes. .

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Abstract

一种无线通信的方法和设备,能够实现零功耗设备在TDD频谱上的反向散射通信。该方法包括:终端设备接收第一设备发送的信号,所述信号用于给所述终端设备供能和/或用于所述终端设备进行反向散射通信,所述第一设备为给所述终端设备提供服务的网络设备之外的其他设备。

Description

无线通信的方法和设备 技术领域
本申请实施例涉及通信领域,具体涉及一种无线通信的方法和设备。
背景技术
随着科技的发展,零功耗设备的应用越来越广泛,一种典型的零功耗设备是射频识别(Radio Frequency Identification,RFID)技术中的标签,标签通过将读写器发送的射频信号(也即供能信号和载波信号)进行调制,从而携带信息发送给读写器。
新无线(New Radio,NR)系统中的通信是需要严格考虑上下行资源配置的。例如,时分双工(Time Division Duplex,TDD)频谱中,基站在下行资源上传输信号,相应的,标签应该在上行资源上传输信号。在RFID技术中,标签的反向散射通信需要读写器提供载波信号,也即标签在上行资源上传输的信号时也需要基站提供载波信号,而在TDD频谱中,基站只能在下行资源上传输信号,因此,如何实现零功耗设备在TDD频谱上的反向散射通信是一项亟需解决的问题。
发明内容
本申请提供了一种无线通信的方法和设备,能够实现零功耗设备在TDD频谱上的反向散射通信。
第一方面,提供了一种无线通信的方法,包括:终端设备接收第一设备发送的信号,所述信号用于给所述终端设备供能和/或用于所述终端设备进行反向散射通信,所述第一设备为给所述终端设备提供服务的网络设备之外的其他设备。
第二方面,提供了一种无线通信的方法,包括:第一设备向终端设备发送信号,所述信号用于给所述终端设备供能和/或用于所述终端设备进行反向散射通信,其中,所述第一设备为给所述终端设备提供服务的网络设备之外的其他设备。
第三方面,提供了一种无线通信的方法,包括网络设备向第一设备发送调度信号,所述调度信号用于调度或触发所述第一设备向终端设备发送信号,所述信号用于给所述终端设备供能和/或用于所述终端设备进行反向散射通信。
第四方面,提供了一种终端设备,用于执行上述第一方面或其各实现方式中的方法。具体地,该终端设备包括用于执行上述第一方面或其各实现方式中的方法的功能模块。
第五方面,提供了一种无线通信的设备,用于执行上述第二方面或其各实现方式中的方法。具体地,该设备包括用于执行上述第二方面或其各实现方式中的方法的功能模块。
第六方面,提供了一种网络设备,用于执行上述第三方面或其各实现方式中的方法。具体地,该网络设备包括用于执行上述第三方面或其各实现方式中的方法的功能模块。
第七方面,提供了一种终端设备,包括处理器和存储器。该存储器用于存储计算机程序,该处理器用于调用并运行该存储器中存储的计算机程序,执行上述第一方面或其各实现方式中的方法。
第八方面,提供了一种无线通信的设备,包括处理器和存储器。该存储器用于存储计算机程序,该处理器用于调用并运行该存储器中存储的计算机程序,执行上述第二方面或其各实现方式中的方法。
第九方面,提供了一种网络设备,包括处理器和存储器。该存储器用于存储计算机程序,该处理器用于调用并运行该存储器中存储的计算机程序,执行上述第三方面或其各实现方式中的方法。
第十方面,提供了一种芯片,用于实现上述第一方面至第三方面中的任一方面或其各实现方式中的方法。具体地,该芯片包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有该装置的设备执行如上述第一方面至第三方面中的任一方面或其各实现方式中的方法。
第十一方面,提供了一种计算机可读存储介质,用于存储计算机程序,该计算机程序使得计算机执行上述第一方面至第三方面中的任一方面或其各实现方式中的方法。
第十二方面,提供了一种计算机程序产品,包括计算机程序指令,所述计算机程序指令使得计算机执行上述第一方面至第三方面中的任一方面或其各实现方式中的方法。
第十三方面,提供了一种计算机程序,当其在计算机上运行时,使得计算机执行上述第一方面至第三方面中的任一方面或其各实现方式中的方法。
通过上述技术方案,终端设备接收第一设备发送的用于给所述终端设备供能和/或用于所述终端设备进行反向散射通信的信号,即所述信号可以用作反向散射通信的供能信号和/或载波信号。其中,第一设备可以为第三方设备,通过第三方设备给终端设备的反向散射通信提供供能信号和/或载波信号,而不是通过网络设备提供供能信号或载波信号,一方面能够降低网络设备的负荷,减少对网络设备的覆盖的影响,另一方面,终端设备进行反向散射通信的时机可以不受限于网络设备,提升了终端 设备的反向散射通信的灵活性,再一方面,终端设备通过第三方设备提供反向散射通信的供能信号和/或载波信号,能够有效解决TDD频谱上的反向散射通信问题。
附图说明
图1是本申请实施例提供的一种通信系统架构的示意性图。
图2是根据本申请一个示例的零功耗通信系统的示意图。
图3是反向散射通信的原理图。
图4是能量采集的原理图。
图5是电阻负载调制的电路原理图。
图6是根据本申请实施例提供的一种无线通信的方法的示意性交互图。
图7是根据本申请一个实施例的反向散射通信的示意性原理图。
图8至图12是基于本申请实施例的反向散射通信的示意性交互图。
图13是根据本申请一个实施例的反向散射通信的示意性原理图。
图14至图20是基于本申请实施例的反向散射通信的示意性交互图。
图21是根据本申请一个实施例的反向散射通信的示意性原理图。
图22是根据本申请实施例提供的一种终端设备的示意性框图。
图23是根据本申请实施例提供的无线通信的设备的示意性框图。
图24是根据本申请实施例提供的一种网络设备的示意性框图。
图25是根据本申请实施例提供的一种通信设备的示意性框图。
图26是根据本申请实施例提供的一种芯片的示意性框图。
图27是根据本申请实施例提供的一种通信系统的示意性框图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。针对本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
本申请实施例的技术方案可以应用于各种通信系统,例如:全球移动通讯(Global System of Mobile communication,GSM)系统、码分多址(Code Division Multiple Access,CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)系统、通用分组无线业务(General Packet Radio Service,GPRS)、长期演进(Long Term Evolution,LTE)系统、先进的长期演进(Advanced long term evolution,LTE-A)系统、新无线(New Radio,NR)系统、NR系统的演进系统、非授权频谱上的LTE(LTE-based access to unlicensed spectrum,LTE-U)系统、非授权频谱上的NR(NR-based access to unlicensed spectrum,NR-U)系统、非地面通信网络(Non-Terrestrial Networks,NTN)系统、通用移动通信系统(Universal Mobile Telecommunication System,UMTS)、无线局域网(Wireless Local Area Networks,WLAN)、无线保真(Wireless Fidelity,WiFi)、第五代通信(5th-Generation,5G)系统,蜂窝物联网系统,蜂窝无源物联网系统或其他通信系统等。
通常来说,传统的通信系统支持的连接数有限,也易于实现,然而,随着通信技术的发展,移动通信系统将不仅支持传统的通信,还将支持例如,设备到设备(Device to Device,D2D)通信,机器到机器(Machine to Machine,M2M)通信,机器类型通信(Machine Type Communication,MTC),车辆间(Vehicle to Vehicle,V2V)通信,或车联网(Vehicle to everything,V2X)通信等,本申请实施例也可以应用于这些通信系统。
可选地,本申请实施例中的通信系统可以应用于载波聚合(Carrier Aggregation,CA)场景,也可以应用于双连接(Dual Connectivity,DC)场景,还可以应用于独立(Standalone,SA)布网场景。
可选地,本申请实施例中的通信系统可以应用于非授权频谱,其中,非授权频谱也可以认为是共享频谱;或者,本申请实施例中的通信系统也可以应用于授权频谱,其中,授权频谱也可以认为是非共享频谱。
本申请实施例结合网络设备和终端设备描述了各个实施例,其中,终端设备也可以称为用户设备(User Equipment,UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置等。
在本申请实施例中,网络设备可以是用于与移动设备通信的设备,网络设备可以是WLAN中的接入点(Access Point,AP),GSM或CDMA中的基站(Base Transceiver Station,BTS),也可以是WCDMA中的基站(NodeB,NB),还可以是LTE中的演进型基站(Evolutional Node B,eNB或eNodeB),或者中继站或接入点,或者车载设备、可穿戴设备以及NR网络中的网络设备(gNB)或者,蜂窝物 联网中的网络设备,或者,蜂窝无源物联网中的网络设备,或者,未来演进的PLMN网络中的网络设备或者NTN网络中的网络设备等。
作为示例而非限定,在本申请实施例中,网络设备可以具有移动特性,例如网络设备可以为移动的设备。可选地,网络设备可以为卫星、气球站。例如,卫星可以为低地球轨道(low earth orbit,LEO)卫星、中地球轨道(medium earth orbit,MEO)卫星、地球同步轨道(geostationary earth orbit,GEO)卫星、高椭圆轨道(High Elliptical Orbit,HEO)卫星等。可选地,网络设备还可以为设置在陆地、水域等位置的基站。
在本申请实施例中,网络设备可以为小区提供服务,终端设备通过该小区使用的传输资源(例如,频域资源,或者说,频谱资源)与网络设备进行通信,该小区可以是网络设备(例如基站)对应的小区,小区可以属于宏基站,也可以属于小小区(Small cell)对应的基站,这里的小小区可以包括:城市小区(Metro cell)、微小区(Micro cell)、微微小区(Pico cell)、毫微微小区(Femto cell)等,这些小小区具有覆盖范围小、发射功率低的特点,适用于提供高速率的数据传输服务。
终端设备可以是WLAN中的站点(STATION,ST),可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol,SIP)电话、无线本地环路(Wireless Local Loop,WLL)站、个人数字助理(Personal Digital Assistant,PDA)设备、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备、下一代通信系统例如NR网络中的终端设备,或者未来演进的公共陆地移动网络(Public Land Mobile Network,PLMN)网络中的终端设备,蜂窝物联网中的终端设备,蜂窝无源物联网中的终端设备等。
在本申请实施例中,终端设备可以部署在陆地上,包括室内或室外、手持、穿戴或车载;也可以部署在水面上(如轮船等);还可以部署在空中(例如飞机、气球和卫星上等)。
在本申请实施例中,终端设备可以是手机(Mobile Phone)、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(Virtual Reality,VR)终端设备、增强现实(Augmented Reality,AR)终端设备、工业控制(industrial control)中的无线终端设备、无人驾驶(self driving)中的无线终端设备、远程医疗(remote medical)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备或智慧家庭(smart home)中的无线终端设备等。
作为示例而非限定,在本申请实施例中,该终端设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备,是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称,如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上,或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备,更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能,例如:智能手表或智能眼镜等,以及只专注于某一类应用功能,需要和其它设备如智能手机配合使用,如各类进行体征监测的智能手环、智能首饰等。
示例性的,本申请实施例应用的通信系统100如图1所示。该通信系统100可以包括网络设备110,网络设备110可以是与终端设备120(或称为通信终端、终端)通信的设备。网络设备110可以为特定的地理区域提供通信覆盖,并且可以与位于该覆盖区域内的终端设备进行通信。
图1示例性地示出了一个网络设备和两个终端设备,可选地,该通信系统100可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括其它数量的终端设备,本申请实施例对此不做限定。
可选地,该通信系统100还可以包括网络控制器、移动管理实体等其他网络实体,本申请实施例对此不作限定。
应理解,本申请实施例中网络/系统中具有通信功能的设备可称为通信设备。以图1示出的通信系统100为例,通信设备可包括具有通信功能的网络设备110和终端设备120,网络设备110和终端设备120可以为上文所述的具体设备,此处不再赘述;通信设备还可包括通信系统100中的其他设备,例如网络控制器、移动管理实体等其他网络实体,本申请实施例中对此不做限定。
应理解,本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”,仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。
应理解,在本申请的实施例中提到的“指示”可以是直接指示,也可以是间接指示,还可以是表示具有关联关系。举例说明,A指示B,可以表示A直接指示B,例如B可以通过A获取;也可以表示A间接指示B,例如A指示C,B可以通过C获取;还可以表示A和B之间具有关联关系。
在本申请实施例的描述中,术语“对应”可表示两者之间具有直接对应或间接对应的关系,也可 以表示两者之间具有关联关系,也可以是指示与被指示、配置与被配置等关系。
本申请实施例中,"预定义"可以通过在设备(例如,包括终端设备和网络设备)中预先保存相应的代码、表格或其他可用于指示相关信息的方式来实现,本申请对于其具体的实现方式不做限定。比如预定义可以是指协议中定义的。
本申请实施例中,所述"协议"可以指通信领域的标准协议,例如可以包括LTE协议、NR协议以及应用于未来的通信系统中的相关协议,本申请对此不做限定。
为便于理解本申请实施例的技术方案,对本申请的相关技术进行说明。
一、零功耗设备
一种典型的零功耗设备是RFID标签。RFID技术是利用无线射频信号空间耦合的方式,实现无接触的标签信息自动传输与识别的技术。RFID标签又称为“射频标签”或“电子标签”。根据供电方式的不同划分的电子标签的类型,例如,可以包括有源电子标签,无源电子标签和半无源电子标签。有源电子标签,又称为主动式电子标签,是指电子标签工作的能量由电池提供,电池、内存与天线一起构成有源电子标签,不同于被动射频的激活方式,在电池更换前一直通过设定频段发送信息。无源电子标签,又称为被动式电子标签,其不支持内装电池,无源电子标签接近读写器时,标签处于读写器天线辐射形成的近场范围内电子标签天线通过电磁感应产生感应电流,感应电流驱动电子标签芯片电路。芯片电路通过电子标签天线将存储在标签中的标识信息发送给读写器。半主动式电子标签继承了无源电子标签体积小、重量轻、价格低、使用寿命长的优点,内置的电池在没有读写器访问的时候,只为芯片内很少的电路提供电源,只有在读写器访问时,内置电池向RFID芯片供电,以增加标签的读写距离较远,提高通信的可靠性。
如图2所示,最基本的RFID系统包括电子标签(TAG)和读写器(Reader/Writer)。其中,电子标签由耦合组件及芯片构成,例如,电子标签可以包括能量采集模块,反向散射通信模块,低功耗计算模块和传感器模块。每个电子标签都有独特的电子编码,放在被测目标上以达到标记目标物体的目的。读写器不仅能够读取电子标签上的信息,而且还能够写入电子标签上的信息,同时为电子标签提供通信所需要的能量。如图2所示。电子标签进入电磁场后,接收读写器发出的射频信号,无源或半无源电子标签可以利用空间中产生的电磁场得到的能量,将电子标签中存储的信息传送出去,读写器读取电子标签传送的信息并且对其进行解码,从而识别电子标签。
二、零功耗通信
在本申请实施例中,基于零功耗设备的通信,简称零功耗通信(或称免电池通信),以下,对零功耗通信中的关键技术进行说明。
1、反向散射通信(Back Scattering)
如图3所示,零功耗设备(图3中的反向散射标签)接收反向散射读写器发送的载波信号,通过能量采集模块采集能量,进而通过低功耗处理模块(图中的逻辑处理模块)对来波信号进行调制,并进行反向散射。
反向散射通信的主要特征如下:
(1)终端不主动发射信号,通过调制来波信号实现反向散射通信;
(2)终端不依赖传统的有源功放发射机,同时使用低功耗计算模块,极大降低硬件复杂度;
(3)结合能量采集模块可实现免电池通信。
2、能量采集(RF Power Harvesting)
图4是能量采集原理图。利用能量采集模块通过电磁感应实现对空间电磁波能量的采集,进而实现对负载电路的驱动(低功耗运算、传感器等),从而实现免电池通信。
3、负载调制
负载调制是电子标签经常使用的向读写器传输数据的方法。负载调制通过对电子标签振荡回路的电参数按照数据流的节拍进行调节,使电子标签阻抗的大小和相位随之改变,从而完成调制的过程。负载调制技术主要有电阻负载调制和电容负载调制方式。
图5是电阻负载调制的原理图。在电阻负载调制中,负载并联一个电阻,称为负载调制电阻,该电阻按数据流的时钟接通和断开,开关S的通断由二进制数据编码控制。
在电容负载调制中,负载并联一个电容,取代了图5中由二进制数据编码控制的负载调制电阻。
4、编码
电子标签传输的数据,可以用不同形式的代码来表示二进制的“1”和“0”。无线射频识别系统通常使用下列编码方法中的一种:反向不归零(NRZ)编码、曼彻斯特(Manchester)编码、单极性归零(Unipolar RZ)编码、差动双相(DBP)编码、差动编码、脉冲间隔编码(PIE)、双向空间编码(FM0)、米勒(Miller)编码利差动编码等。通俗来说,是采用不同的脉冲信号表示0和1。
三、蜂窝无源物联网
随着5G行业应用的增加,连接物的种类和应用场景越来越多,对通信终端的成本和功耗也将有更高要求,免电池、低成本的无源物联网设备的应用成为蜂窝物联网的关键技术,充实5G网络链接终端类型和数量,真正实现万物互联。
四、NR系统中的上下行系统配置
为了设计出更加灵活的资源配置,NR系统将时分双工(Time Division Duplex,TDD)和频分双工(Frequency Division Duplex,FDD)工作模式进行融合,实现以时隙为周期的资源配置结构。
作为示例,NR的时隙结构定义如下:
将FDD工作模式和TDD工作模式统一,不设置独立的工作模式,而是采用在TDD工作模式中将所有正交频分复用(Orthogonal Frequency Division Multiplexing,OFDM)符号配置为上行或者下行来实现FDD工作模式的效果;
增加了标准化的上行/下行资源比例配置的数量,从LTE的7种增加到254种。这样的设计极大地提高了NR系统对多样化业务的支持;
在一个时隙中除了定义下行和上行OFDM符号,还定义了灵活(Flexible,F)符号,用作更动态的下行/上行配置;
NR系统仍支持根据实际需求进行时隙格式的灵活配置。
在RFID技术中,标签的反向散射通信是将读写器发送的载波信号(也起到供能的作用)进行调制,从而携带信息发送给读写器。也即标签向读写器的反向散射通信是需要读写器提供载波信号的。这本身没有考虑上下行帧结构。而在NR系统中,为了更加灵活的配置资源,将TDD工作模式和FDD工作模式进行了融合,在NR系统中的通信是需要严格考虑上下行资源配置的。在TDD工作模式下,基站在下行资源上传输信号,相应的标签应该在上行资源上传输信号。而在RFID技术中,标签的反向散射通信需要读写器提供载波信号,也即标签在上行资源上传输的信号时也需要基站提供载波信号,而在TDD系统中,基站只能在下行资源上传输信号,因此,如何实现零功耗设备在TDD频谱上的反向散射通信是一项亟需解决的问题。
以下通过具体实施例详述本申请的技术方案。以上相关技术作为可选方案与本申请实施例的技术方案可以进行任意结合,其均属于本申请实施例的保护范围。本申请实施例包括以下内容中的至少部分内容。
图6是根据本申请实施例的无线通信的方法200的示意性交互图,如图6所示,该方法200包括如下内容:
S210,终端设备接收第一设备发送的信号,所述信号用于给所述终端设备供能和/或用于所述终端设备进行反向散射通信。
应理解,本申请实施例可以应用于蜂窝物联网系统,例如蜂窝无源物联网系统,或者,也可以应用于终端设备通过零功耗通信或免电池通信方式向网络设备发送信息的其他场景,本申请并不限于此。
需要说明的是,所述零功耗通信方式可以包括反向散射通信方式,或者也可以包括标准演进中引入的用于无源或半无源设备进行通信的其他方式,以下,以终端设备通过反向散射通信方式与网络设备进行通信为例进行说明,但本申请并不限于此。
在一些实施例中,所述终端设备为零功耗设备,或者不主动发射信号,而是利用网络设备或者其他设备发送的信号来承载信息的其他设备。
在一些实施例中,所述终端设备的供电方式可以为无源或半无源方式。
在一些实施例中,所述信号用于给所述终端设备供能可以包括所述信号用于给所述终端设备的电路驱动供能,或者,也可以包括给所述终端设备对载波信号进行调制、编码等处理操作供能。
在一些实施例中,所述信号用于所述终端设备进行反向散射通信可以包括所述终端设备可以利用所述信号来承载信息,或者,所述信号可以用作反向散射通信的入射信号源,也就是说,所述信号可以作为反向散射通信的载波信号。例如,所述终端设备可以对所述信号进行调制,得到反向散射信号。
为便于区分和说明,当所述信号用于给所述终端设备供能时,可以认为所述信号可以用作供能信号,当所述信号用于所述终端设备进行反向散射通信时,可以认为所述信号可以用作载波信号。
应理解,在一些实施例中,供能信号和载波信号可以是不同的信号,在另一些实施例中,所述供能信号也可以用作反向散射通信的载波信号,即二者可以为同一信号。例如,终端设备可以对供能信号进行调制,得到反向散射信号。
因此,在本申请实施例中,所述第一设备可以向所述终端设备发送的信号可以用作供能信号和/或载波信号。即所述第一设备可以作为所述终端设备进行反射散射通信的供能信号载体和/或载波信 号载体。
在一些实施例中,所述第一设备可以为所述终端设备对应的网络设备之外的其他设备,即所述第一设备可以为第三方设备。通过第三方设备给终端设备的反向散射通信提供供能信号和/或载波信号,而不是通过网络设备提供供能信号或载波信号,一方面能够降低网络设备的负荷,减少对网络设备的覆盖的影响,另一方面,终端设备进行反向散射通信的时机可以不受限于网络设备,提升了终端设备的反向散射通信的灵活性,再一方面,终端设备通过第三方设备提供反向散射通信的供能信号和/或载波信号,能够有效解决TDD频谱上的反向散射通信问题。
可选地,所述终端设备对应的网络设备可以指为终端设备提供服务的网络设备,或者,所述终端设备对应的网络设备为所述终端设备发送的反向散射信号的接收端设备。
应理解,本申请实施例可以应用于TDD系统,或者也可以应用于FDD系统,即无论在TDD系统还是FDD系统,终端设备均可以通过第三方设备提供供能信号和/或载波信号,以实现终端设备的反向散射通信。
在一些实施例中,在FDD系统中,网络设备也可以给终端设备提供供能信号和/或载波信号。
在一些实施例中,在FDD系统中,当供能信号和载波信号为不同信号时,供能信号的频率和载波信号的频率可以相同,或者,也可以不同。
在一些实施例中,在TDD系统中,当供能信号和载波信号为不同信号时,供能信号的频率和载波信号的频率可以相同,或者,也可以不同。
应理解,本申请并不限定供能信号的频率,例如供能信号可以是低频信号,中频信号或者高频信号。
应理解,本申请并不限定供能信号的波形,例如,供能信号可以是由正弦波、方波、三角波、脉冲或矩形波等。
在一些实施例中,供能信号可以是连续波,或者也可以是非连续波,即允许有一定时间的中断。
应理解,本申请并不限定载波信号的频率,例如载波信号可以是低频信号,中频信号或者高频信号。
应理解,本申请并不限定载波信号的波形,例如,载波信号可以是由正弦波、方波、三角波、脉冲或矩形波等。
在一些实施例中,载波信号可以是连续波,或者也可以是非连续波,即允许有一定时间的中断。
在一些实施例中,供能信号或载波信号可以是3GPP标准中的任一信号或信道,例如,探测参考信号(Sounding Reference Signal,SRS),物理随机接入信道(Physical Random Access Channel,PRACH),物理上行控制信道(Physical Uplink Control Channel,PUCCH),物理上行共享信道(Physical Uplink Shared Channel,PUSCH),物理下行控制信道(Physical Downlink Control Channel,PDCCH),物理下行共享信道(Physical Downlink Shared Channel,PDSCH),物理层广播信道(Physical Broadcast Channel,PBCH)等,或者,也可以为标准演进中的新引入的信号或信道,本申请并不限于此。
应理解,本申请对于所述终端设备的储能能力不作具体限定,根据所述终端设备的储能能力,终端设备进行反向散射通信需要提供不同的辅助信号。例如,所述终端设备不具备储能能力,此情况下,需要给所述终端设备进行反向散射通信提供供能信号以及载波信号。其中,该供能信号和载波信号可以是同一设备提供的,或者也可以是不同设备提供的。又例如,所述终端设备具备一定的储能能力,例如,所述终端设备是半无源设备,可以给自身的电路驱动供能,此情况下,可以只需给所述终端设备进行反向散射通信提供载波信号。
以下,结合具体实施例,说明终端设备的供能和反向散射通信的具体实现方式。
应理解,本申请实施例所描述的终端设备的供能方式并不一定表示终端设备一定需要供能,例如,终端设备具备一定的储能能力的情况下,可以不需要其他设备对其进行供能,只是说明在终端设备需要供能或者说有被供能的需求的情况下,可以基于如下方式对终端设备进行供能。
在本申请一些实施例中,当所述第一设备向所述终端设备发送供能信号的情况下,所述供能信号可以包括上行供能信号和/或下行供能信号。即所述第一设备可以用作所述终端设备的上行供能设备和/或下行供能设备。
可选地,所述上行供能信号可以指在上行资源上给终端设备供能的信号,下行供能信号可以指在下行资源上给终端设备供能的信号,或者,所述上行供能信号可以指给终端设备供能,以用于终端设备在上行资源上进行上行数据传输的信号,所述下行供能信号可以指给终端设备供能,以用于终端设备在下行资源上进行下行数据传输的信号。
在本申请一些实施例中,所述S210可以包括:
所述终端设备在上行资源上接收所述第一设备发送的第一信号,所述第一信号可以用于给所述终 端设备供能。
即所述第一设备可以在上行资源上给终端设备提供供能信号。换言之,所述第一信号可以用作上行供能信号。
在一些实现方式中,所述第一信号还用于所述终端设备进行反向散射通信。
例如,所述第一信号还可以用作反向散射通信的载波信号。
此情况下,所述方法200还包括:
所述终端设备对所述第一信号进行调制得到反向散射信号;
进一步向所述网络设备发送所述反向散射信号。
即所述第一信号可以作为上行供能信号和载波信号。
在另一些实现方式中,所述第一信号不用于所述终端设备进行反向散射通信。
此情况下,需要另外的信号为终端设备的反向散射通信提供载波信号。
例如,第三设备的第一载波信号用于终端设备进行反射散射通信。
此情况下,所述方法200还包括:
所述终端设备对第三设备发送的第一载波信号进行调制得到反向散射信号;
进一步向所述网络设备发送所述反向散射信号。
可选地,所述第三设备和所述第一设备可以为同一设备,或者也可以为不同的设备。
即可以通过同一设备提供两个信号,分别用于给终端设备进行供能和进行反向散射通信。或者,也可以通过不同的设备分别提供一个信号,用于给终端设备进行供能和进行反向散射通信。
在本申请另一些实施例中,所述S210可以包括:
所述终端设备在下行资源上接收所述第一设备发送的第二信号,所述第二信号用于给所述终端设备供能。
即所述第一设备可以在下行资源上给终端设备提供供能信号。换言之,所述第二信号可以用作下行供能信号。
在本申请一些实施例中,所述终端设备基于所述第二信号进行能量采集,进一步可以基于采集的能力进行下行信号接收,例如,接收网络设备的调度信号。
应理解,在本申请实施例中,所述第一设备可以只在上行资源上发送第一信号,或者也可以只在下行资源上发送第二信号,或者,也可以既在上行资源上发送第一信号,又在下行资源上发送第二信号。也就是说,在本申请实施例中,可以由同一设备给终端设备提供上行资源上的供能以及下行资源上的供能,还可以由不同设备分别为终端设备提供上行资源上的供能以及下行资源上的供能。
综上,在本申请实施例中,所述终端设备的供能可以采用如下方式实现:
方式1:所述第一设备为第三方设备,所述第一设备为终端设备提供上行资源上的供能,由另一第三方设备(记为第二设备)为终端设备提供下行资源上的供能。
方式2:所述第一设备为第三方设备,所述第三方设备为终端设备提供上行资源上的供能以及下行资源上的供能。
方式3:所述第一设备为第三方设备,所述第三方设备为终端设备提供上行资源上的供能,由网络设备为终端设备提供下行资源上的供能。
方式4:FDD系统中,所述网络设备为终端设备提供下行资源上的供能,此情况下,所述下行资源和上行资源是频分复用的。
应理解,该方式1至方式3应用在TDD系统时,所述上行资源和所述下行资源是时分复用的,该方式1至方式3应用在FDD系统时,所述上行资源和所述下行资源是频分复用的。以下,结合实施例1-实施例4,说明如上供能方式以及对应的反向散射通信方式。
实施例1:对应供能方式1
在该实施例1中,如图7至图12所示,所述第一设备可以在上行资源上发送第一信号,第二设备在下行资源上发送第二信号。
在一些实施例中,所述第一设备可以为智能设备(例如智能手机),智能网关,专用供能节点(例如,充电站),微基站等。
在一些实施例中,所述第二设备可以为基站,智能设备(例如智能手机),智能网关,专用供能节点(例如,充电站),微基站等。
应理解,在本申请实施例中,所述第一设备在上行资源发送第一信号可以指所述第一设备在部分或全部上行资源方式发送第一信号。例如,在上行资源上连续发送第一信号,或者,在上行资源上不连续发送第一信号。
本申请并不限定所述第一信号的频率,例如所述第一信号可以是低频信号,中频信号或者高频信 号。
本申请并不限定所述第一信号的波形,例如,所述第一信号可以是由正弦波、方波、三角波、脉冲或矩形波等。
在一些实施例中,所述第一信号可以是连续波,或者也可以是非连续波。
应理解,在本申请实施例中,所述第二设备在下行资源发送第二信号可以指所述第二设备在部分或全部下行资源方式发送第二信号,例如,在下行资源上连续发送第二信号,或者,在下行资源上不连续发送第二信号。
本申请并不限定所述第二信号的频率,例如所述第二信号可以是低频信号,中频信号或者高频信号。
本申请并不限定所述第二信号的波形,例如,所述第二信号可以是由正弦波、方波、三角波、脉冲或矩形波等。
在一些实施例中,所述第二信号可以是连续波,或者也可以是非连续波。
在一些实施例中,所述第一信号的频率和所述第二信号的频率相同,或者不同。
在一些实施例中,所述第一设备以第一发送功率发送第一信号,第二设备以第二发送功率发送第二信号。
可选地,所述第一发送功率和所述第二发送功率相同或不同。
在一些实施例中,所述第一发送功率可以是预定义的,网络设备指示的,或者也可以是第一设备自行选择的。
在一些实施例中,所述第二发送功率可以是预定义的,网络设备指示的,或者也可以是第二设备自行选择的。
在本申请一些实施例中,所述网络设备可以控制供能信号的启动和/或中断。例如,当网络设备需要调度终端设备进行通信时,需要提前触发设备启动发送供能信号。又例如,在一段时间内没有调度终端设备的通信需求时,网络设备也可以控制设备停止发送供能信号。
在一些实施例中,所述第一设备可以根据所述网络设备的控制信号开始或停止发送所述第一信号。例如,在接收到网络设备的第一控制信号的情况下,开始发送所述第一信号,在接收到所述网络设备发送的第二控制信号的情况下,停止发送第一信号。
在一些实施例中,所述第一设备开始发送所述第一信号可以不基于网络设备的控制信号,例如,所述第一设备可以在预定义时间单元上开始发送所述第一信号。
在一些实施例中,所述第一设备停止发送所述第一信号可以不基于网络设备的控制信号,例如,所述第一设备可以在开始发送所述第一信号一定时长后,停止发送所述第一信号。可选地,该时长可以是预定义的,或者是网络设备指示的。
在一些实施例中,所述第二设备可以根据所述网络设备的控制信号开始或停止发送所述第二信号。例如,在接收到网络设备的第三控制信号的情况下,开始发送所述第二信号,在接收到所述网络设备发送的第四控制信号的情况下,停止发送第二信号。
在一些实施例中,所述第二设备开始发送所述第二信号可以不基于网络设备的控制信号,例如,所述第二设备可以在预定义时间单元上开始发送所述第二信号。
在一些实施例中,所述第二设备停止发送所述第二信号可以不基于网络设备的控制信号,例如,所述第一设备可以在开始发送所述第二信号一定时长后,停止发送所述第二信号。可选地,该时长可以是预定义的,或者是网络设备指示的。
在一些实施例中,所述第一设备在所述上行资源上发送第一信号可以是基于网络设备的调度,例如,如图7所示,所述第一设备可以基于网络设备发送的第四信号发送所述第一信号,其中,所述第四信号用于调度或触发所述第一设备发送所述第一信号。
在另一些实施例中,所述第一设备在所述上行资源上发送第一信号是免调度的,例如,所述第一设备周期性的在上行资源上发送第一信号,或者,按照预定义方式在上行资源上发送第一信号。
在一些实施例中,如图8所示,第四信号用于调度所述第一设备从可用于上行数据传输的第一个时间单元开始发送所述第一信号。即在上下行资源切换时,开始发送第一信号。
在另一些实施例中,如图9所示,第四信号用于调度所述第一设备在可用于上行数据传输的第一个时间单元之前开始发送所述第一信号。在上下行资源切换之前,提前开始发送第一信号。
在又一些实施例中,第四信号用于调度所述第一设备在可用于上行数据传输的第一个时间单元之后开始发送所述第一信号。在上下行资源切换之后,再开始发送第一信号。
例如,所述第四信号可以包括第二时间单元偏移量K2,用于指示所述第一设备开始发送所述第一信号的时间单元相对于所述第四信号所在时间单元的的时间单元偏移量。
则,所述第一设备可以根据所述第二时间单元偏移量和接收所述第四信号的时间单元位置,确定开始发送所述第一信号的时间单元位置。
例如,如图8所示,第一设备在时间单元n接收到第四信号,第二时间单元偏移量K2为3,则第一设备可以确定在时间单元n+3上开始发送第一信号。
又例如,如图9所示,第一设备在时间单元n接收到第四信号,第二时间单元偏移量K2为2,则可以确定在时间单元n+2上开始发送第一信号。
在一些实施例中,若所述第四信号不包括第二时间单元偏移量K2,所述第一设备可以按照预设规则确定开始发送所述第一信号的时间单元位置,例如,确定接收所述第四信号的时间单元之后的第一个上行时间单元为开始发送第一信号的时间单元位置。
在一些实施例中,所述第二设备在所述下行资源上发送第二信号可以是基于网络设备的调度,例如,如图7所示,所述第二设备可以基于网络设备发送的第五信号发送所述第二信号,其中,所述第五信号用于调度或触发所述第二设备发送所述第二信号。
在另一些实施例中,所述第二设备在所述下行资源上发送第二信号是免调度的,例如,所述第二设备周期性的在上行资源上发送第二信号,或者,按照预定义方式在上行资源上发送第二信号。
在一些实施例中,所述第五信号用于调度所述第二设备在下一个时间单元,或者,在特定下行时间单元上开始发送所述第二信号。
例如,所述第五信号可以包括第三时间单元偏移量,用于指示所述第二设备开始发送所述第二信号的时间单元相对于所述第五信号所在时间单元的的时间单元偏移量。
则,所述第二设备可以根据所述第三时间单元偏移量和接收所述第五信号的时间单元位置,确定开始发送所述第二信号的时间单元位置。例如第二设备在时间单元n接收到第五信号,第三时间单元偏移量K2为2,则第一设备可以确定在时间单元n+2上开始发送第一信号。
在一些实施例中,若所述第五信号不包括第三时间单元偏移量K3,所述第一设备可以按照预设规则确定开始发送所述第二信号的时间单元位置,例如,确定接收所述第五信号的时间单元的下一个下行时间单元为开始发送第二信号的时间单元位置。
在一些实施例中,所述第四信号还可以包括第六指示信息,用于指示所述第一信号的发送功率。即网络设备可以在调度第一设备发送第一信号时,同时配置第一信号的发送功率。
在一些实施例中,所述第五信号还可以包括第七指示信息,用于指示所述第二信号的发送功率。即网络设备可以在调度第二设备发送第二信号时,同时配置第二信号的发送功率。
应理解,本申请实施例对于所述第一设备发送所述第一信号的时域具体位置以及时域位置的确定方式不作具体限定。
在本申请一些实施例中,所述第一设备在第一时间窗口内发送所述第一信号。即所述第一设备可以在连续的一段时间内发送所述第一信号。
可选地,所述第一时间窗口是根据预定义信息和/或所述网络设备的指示信息确定的。
在一些实施例中,所述第一时间窗口的起始位置和长度是预定义的。作为示例,所述第一时间窗口是周期性的时间窗口,可以预定义该第一时间窗口在一个周期内的起始时间单元和长度,则第一设备可以根据该时间窗口的周期,起始时间单元和长度确定第一时间窗口的具体位置,进一步可以在该第一时间窗口内发送第一信号。
应理解,本申请实施例中的时间单元可以为任一时间计量单位,例如符号,时隙,子帧,帧等。
在另一些实施例中,所述第一时间窗口的位置可以是网络设备指示的。
例如,网络设备在调度第一设备发送第一信号时,可以同时指示所述第一信号的调度信息,即第四信号中可以包括第一信号的调度信息,所述第一设备可以根据所述第一信号的调度信息确定第一时间窗口的位置。
作为示例,所述第一信号的调度信息包括第二时间单元偏移量K2和/或第一时长,所述第二时间单元偏移量K2用于指示所述第一设备开始发送所述第一信号的时间单元相对于所述第四信号所在时间单元的的时间单元偏移量,所述第一时长用于指示所述第一设备发送所述第一信号的持续时长。
在又一些实施例中,所述第一时间窗口可以是多个预定义的时间窗口中的一个。
在一些实施例中,网络设备在调度第一设备发送第一信号时,可以同时指示所述多个预定义时间窗口的一个。例如,所述第四信号中可以包括第二指示信息,所述第二指示信息用于指示多个预定义时间窗口中的一个时间窗口。进一步第一设备可以根据网络设备指示的时间窗口进行第一信号的发送。
在本申请另一些实施例中,所述第一设备在第一时间单元集合上发送所述第一信号。
可选地,所述第一时间单元集合是根据预定义信息和/或所述网络设备的指示信息确定的。
在一些实施例中,所述第一时间单元集合是预定义的。作为示例,所述第一时间单元集合是周期性的时间单元集合,所述第一时间单元集合中的时间单元可以是连续的,或者也可以是不连续的,本申请对此不作限定。
在一些实施例中,所述第一时间单元集合是多个预定义时间单元集合中一个。
在一些实施例中,网络设备在调度第一设备发送第一信号时,可以同时指示所述多个预定义时间单元集合中的一个。例如,所述第四信号中可以包括第三指示信息,所述第三指示信息用于指示多个预定义时间单元集合中的一个。进一步第一设备可以根据网络设备指示的时间单元集合进行第一信号的发送。
应理解,本申请实施例对于所述第二设备发送所述第二信号的时域具体位置以及时域位置的确定方式不作具体限定。
在本申请一些实施例中,所述第二设备在第二时间窗口内发送所述第二信号。即所述第二设备可以在连续的一段时间内发送所述第二信号。
可选地,所述第二时间窗口是根据预定义信息和/或所述网络设备的指示信息确定的。
在一些实施例中,所述第二时间窗口的起始位置和长度是预定义的。作为示例,所述第二时间窗口是周期性的时间窗口,可以预定义该第二时间窗口在一个周期内的起始时间单元和长度,则第二设备可以根据该时间窗口的周期,起始时间单元和长度确定第二时间窗口的具体位置,进一步可以在该第二时间窗口内发送第二信号。
在另一些实施例中,所述第二时间窗口的位置可以是网络设备指示的。
例如,网络设备在调度第二设备发送第二信号时,可以同时指示所述第二信号的调度信息,即第五信号中可以包括第二信号的调度信息,所述第二设备可以根据所述第二信号的调度信息确定第二时间窗口的位置。
作为示例,所述第二信号的调度信息包括第三时间单元偏移量K3和/或第二时长,所述第三时间单元偏移量K3用于指示所述第二设备开始发送所述第二信号的时间单元相对于所述第五信号所在时间单元的的时间单元偏移量,所述第二时长用于指示所述第二设备发送所述第二信号的持续时长。
则,所述第二设备可以根据所述第三时间单元偏移量和接收所述第五信号的时间单元位置,确定开始发送所述第二信号的时间单元位置。
在又一些实施例中,所述第二时间窗口可以是多个预定义的时间窗口中的一个。
在一些实施例中,网络设备在调度第二设备发送第二信号时,可以同时指示所述多个预定义时间窗口的一个。例如,所述第五信号中可以包括第四指示信息,所述第四指示信息用于指示多个预定义时间窗口中的一个时间窗口。进一步第二设备可以根据网络设备指示的时间窗口进行第二信号的发送。
在本申请另一些实施例中,所述第二设备在第二时间单元集合上发送所述第二信号。
可选地,所述第二时间单元集合是根据预定义信息和/或所述网络设备的指示信息确定的。
在一些实施例中,所述第二时间单元集合是预定义的。作为示例,所述第二时间单元集合是周期性的时间单元集合,所述第二时间单元集合中的时间单元可以是连续的,或者也可以是不连续的,本申请对此不作限定。
在一些实施例中,所述第二时间单元集合是多个预定义时间单元集合中一个。
在一些实施例中,网络设备在调度第二设备发送第二信号时,可以同时指示所述多个预定义时间单元集合中的一个。例如,所述第五信号中可以包括第五指示信息,所述第五指示信息用于指示多个预定义时间单元集合中的一个。进一步第二设备可以根据网络设备指示的时间单元集合进行第二信号的发送。
在本申请一些实施例中,所述终端设备进行反向散射通信也可以是免调度的,例如,在终端设备有上行传输需求时,基于上行供能信号获得的能力以及载波信号进行反向散射通信。
在本申请另一些实施例中,所述终端设备进行反向散射通信基于网络设备的调度或触发,例如,如图7至图12所示,终端设备可以在接收到网络设备的第三信号的情况下,进行反向散射通信,其中,所述第三信息用于调度或触发所述终端设备进行反向散射通信。
在一些实施例中,所述第三信号包括第一指示信息,所述第一指示信息用于指示第一时间单元偏移量K1,所述第一时间单元偏移量K1用于指示所述终端设备发送反向散射信号的时间单元相对于所述第三信号所在时间单元的时间单元偏移量。
例如,如图8和图9所示,终端设备在时间单元n+1接收到第三信号,第一时间单元偏移量K1为3,则终端设备可以确定在时间单元n+4上进行反向散射通信。
应理解,在本申请实施例中,所述第三信号指示所述第一时间单元偏移量的情况下,所述网络设 备需要控制根据第一时间单元偏移量所确定的进行反向散射通信的时间单元为上行资源。
在一些实施例中,在第三信号不携带反向散射通信的时间相关的指示信息(例如第一时间单元偏移量)的情况下,所述终端设备可以按照预设规则确定进行反向散射通信的时间单元。
作为一个示例,所述终端设备可以确定在所述第三信号所在时间单元的下一个时间单元上进行反向散射通信。例如,网络设备在时间单元i上发送第三信号,用于触发终端设备在时间单元i+1上进行反向散射通信。此情况下,网络设备需要控制调度,保证时间单元i是下行资源,时间单元i+1是上行资源。
例如,如图10和图11所示,终端设备在时间单元n+3接收到第三信号,第三信号不携带第一时间单元偏移量,则终端设备可以确定在下一时间单元,即时间单元n+4上进行反向散射通信。
作为又一示例,所述终端设备可以确定在所述第三信号所在时间单元之后的第一个上行资源(或者,第一个上行时间单元)上进行反向散射通信。例如,网络设备在时间单元i上发送第三信号,时间单元i是下行资源,时间单元i+j为时间单元i之后的第一个上行资源,则终端设备在时间单元i+j上进行反向散射通信。
例如,如图12所示,终端设备在时间单元n+2接收到第三信号,第三信号不携带第一时间单元偏移量,则终端设备可以确定时间单元n+2之后的第一个上行资源,即时间单元n+4上进行反向散射通信。
应理解,本申请对于网络设备发送第三信号和发送第四信号的时序不作限定,但需要保证终端设备在进行反向散射通信时,第一设备能够提供相应的供能信号。
实施例2:对应前述供能方式2
在该实施例2中,如图13至图20所示,所述第一设备可以在上行资源上发送第一信号,以及在下行资源上发送第二信号。即可以通过一个设备提供终端设备的上行供能信号和下行供能信号。
可以理解,在实施例1中的第一设备和第二设备为同一设备的情况下,实施例1即为该实施例2。
因此,在实施例2中,所述第一设备发送第一信号的相关实现可以参考实施例1中的第一设备发送第一信号的相关实现,实施例2中的第一设备发送第二信号的相关实现可以参考实施例1中的第二设备发送第二信号的相关实现,为了简洁,这里不再赘述。
在一些实施例中,如图14所示,所述第一设备可以在下行资源和上行资源上发送连续的供能信号,此情况下,所述第一信号和第二信号可以认为是来自同一信号。
在一些实施例中,如图14、图15和图16所示,所述第一设备发送所述第一信号和所述第二信号使用相同的发送功率。
在一些实施例中,所述第一设备发送第一信号和发送第二信号使用独立的发送功率。
例如,如图17至图20所示,所述第一设备以第一发送功率P1发送第一信号,以第二发送功率P2发送第二信号。
可选地,所述第一发送功率和所述第二发送功率相同或不同。
在一些实施例中,所述第一信号和所述第二信号的发送功率可以是预定义的,或者,是网络设备指示的,或者也可以是第一设备自行选择的。
在一些实施例中,如图17和图18所示,所述第一设备在上行资源和下行资源上自行切换供能信号的发送功率。例如,在下行资源上,以第二发送功率P2发送第二信号,在上行资源上,以第一发送功率P1发送第一信号。
在另一些实施例中,所述第一设备基于网络设备的指示切换供能信号的发送功率。
例如,如图19和图20所示,所述第一设备可以接收网络设备的功率切换指示信号,根据功率切换指示信号进行发送功率的切换。
可选地,所述功率切换指示信号可以用于指示所述第一设备进行功率切换的时机和/或切换后的功率相关信息。
例如,所述功率切换指示信号用于指示一个时间单元偏移量K,表示所述第一设备执行功率切换的时间单元相对于接收到功率切换指示信号的时间单元的时间单元偏移量。
又例如,所述功率切换指示信号可以用于指示切换后的供能信号的发送功率,或者用于指示一个功率调整量,表示切换后的供能信号的发送功率相对于切换前的供能信号的发送功率的调整量。
应理解,所述第一设备执行功率切换的切换时机可以是预定义的,或者也可以是基于功率切换指示信号的指示。
例如,在所述功率切换指示信号未指示切换时机的情况下,可以认为功率切换是即时生效的,即所述第一设备在接收到所述功率切换指示信号的情况下,立即执行功率切换。
又例如,在所述功率切换指示信号未指示切换时机的情况下,可以认为功率切换是在下一时间单 元生效,即所述第一设备在接收到所述功率切换指示信号的情况下,在下一时间单元上执行功率切换。
再例如,在所述功率切换指示信号未指示切换时机的情况下,可以认为功率切换是在之后的第一个上行时间单元生效,即所述第一设备在接收到所述功率切换指示信号的情况下,在之后的第一个上行时间单元上执行功率切换。
应理解,所述第一设备切换后的发送功率可以是预定义的,或者也可以基于功率切换指示信号的指示,例如,上行供能信号的发送功率是预定义的,则第一设备可以根据该预定义的发送功率发送上行供能信号,或者,若网络设备发送的功率切换指示信号指示了切换后的发送功率,此情况下,第一设备也可以根据网络设备的指示确定发送上行供能信号所使用的发送功率。
在本申请一些实施例中,所述网络设备可以控制供能信号的启动和/或中断。例如,当网络设备需要调度终端设备进行通信时,需要提前触发第一设备启动发送供能信号。又例如,在一段时间内没有调度终端设备的通信需求时,网络设备也可以控制第一设备停止发送供能信号。
在一些实施例中,上行供能信号和下行供能信号可以是通过同一个控制信号控制的。例如,网络设备可以通过一个控制信号控制所述第一设备启动供能,则第一设备开始在上行资源上发送第一信号,以及在下行资源上发送第二信号。又例如,网络设备可以通过一个控制信号控制所述第一设备停止供能,则第一设备停止在上行资源上发送第一信号,以及停止在下行资源上发送第二信号。
在另一些实施例中,上行供能信号和下行供能信号可以是通过独立的控制信号控制的。这样,所述第一设备可以根据独立的控制信号独立控制进行上行供能和下行供能。
在一些实施例中,所述第一设备在所述上行资源上发送第一信号可以是基于网络设备的调度,或者也可以是免调度的,例如,所述第一设备周期性的在上行资源上发送第一信号,或者,按照预定义方式在上行资源上发送第一信号。具体的实现方式参考实施例1中第一信号的调度方式,为了简洁,这里不再赘述。
在一些实施例中,所述第一设备在所述下行资源上发送第二信号可以是基于网络设备的调度,或者也可以是免调度的,例如,所述第一设备周期性的在上行资源上发送第二信号,或者,按照预定义方式在上行资源上发送第二信号。具体的实现方式参考实施例1中第二信号的调度方式,为了简洁,这里不再赘述。
在该实施例2中,所述第一信号和所述第二信号可以是基于同一信号调度的,例如,所述第一设备在接收到网络设备发送的供能信号的调度信号的情况下,基于该调度信号在上行资源上发送第一信号以及在下行资源发送第二信号,作为一个具体示例,第一设备可以基于该调度信号在上行资源和下行资源上发送连续的供能信号。
在该实施例2的一些实施例中,所述终端设备进行反向散射通信也可以是免调度的,例如,在终端设备由上行传输需求时,基于上行供能信号获得的能力以及载波信号进行反向散射通信。
在该实施例2的另一些实施例中,所述终端设备进行反向散射通信基于网络设备的调度或触发,例如,如图14至图20所示,终端设备可以在接收到网络设备的第三信号的情况下,进行反向散射通信,其中,所述第三信息用于调度或触发所述终端设备进行反向散射通信。
在一些实施例中,所述第三信号包括第一指示信息,所述第一指示信息用于指示第一时间单元偏移量K1,所述第一时间单元偏移量K1用于指示所述终端设备发送反向散射信号的时间单元相对于所述第三信号所在时间单元的时间单元偏移量。
例如,如图14、图17和图19所示,终端设备在时间单元n接收到第三信号,第一时间单元偏移量K1为4,则终端设备可以确定在时间单元n+4上进行反向散射通信。
应理解,在本申请实施例中,所述第三信号指示所述第一时间单元偏移量的情况下,所述网络设备需要控制根据第一时间单元偏移量所确定的进行反向散射通信的时间单元为上行资源。
在一些实施例中,在第三信号不携带反向散射通信的时间相关的指示信息(例如第一时间单元偏移量)的情况下,所述终端设备可以根据预设规则确定进行反向散射通信的时间单元。
作为一个示例,所述终端设备可以确定在所述第三信号所在时间单元的下一个时间单元上进行反向散射通信。例如,网络设备在时间单元i上发送第三信号,用于触发终端设备在时间单元i+1上进行反向散射通信。此情况下,网络设备需要控制调度,保证时间单元i是下行资源,时间单元i+1是上行资源。
例如,如图15、图18和图20所示,终端设备在时间单元n+3接收到第三信号,第三信号不携带第一时间单元偏移量,则终端设备可以确定在下一时间单元,即时间单元n+4上进行反向散射通信。
作为另一示例,所述终端设备可以确定在所述第三信号所在时间单元之后的第一个上行资源(或者,第一个上行时间单元)上进行反向散射通信。例如,网络设备在时间单元i上发送第三信号,时间单元i是下行资源,时间单元i+j为时间单元i之后的第一个上行资源,则终端设备在时间单元i+j 上进行反向散射通信。
例如,如图16所示,终端设备在时间单元n+2接收到第三信号,第三信号不携带第一时间单元偏移量,则终端设备可以确定时间单元n+2之后的第一个上行资源,即时间单元n+4上进行反向散射通信。
实施例3:对应于前述的供能方式3
在该实施例3中,如图21所示,所述第一设备可以在上行资源上发送第一信号,网络设备可以在下行资源上发送第二信号。即可以通过第三方设备提供终端设备的上行传输所需的供能信号,通过网络设备提供下行供能信号。
应理解,在该实施例3中,所述第一设备发送所述第一信号的相关实现可以参考实施例1中所述第一设备发送所述第一信号的具体实现,为了简洁,这里不再赘述。
可选地,在该实施例3中,所述第一设备发送所述第一信号所采用的发送功率和所述网络设备发送所述第二信号所采用的发送功率可以相同,或者也可以不同。
可选地,在该实施例3中,所述第一设备发送的所述第一信号的频点和所述网络设备发送的所述第二信号的频点可以相同,或者也可以不同。
应理解,在该实施例3中,所述终端设备进行反向散射通信的方式可以参考实施例1和实施例2中的相关描述,为了简洁,这里不再赘述。
实施例4:对应前述的供能方式4
该实施例4可以适用于FDD系统,此情况下,所述网络设备可以在下行资源上发送第二信号,相应地,所述终端设备在下行资源接收所述第二信号,根据所述第二信号进行能量采集。
如果所述第二信号还用作终端设备进行反向散射通信的载波信号,则所述终端设备还可以对所述第二信号进行第二信号进行调制、频率偏移等处理,得到相应频率的反向散射信号,在上行资源上将该反向散射信号发送给网络设备。
应理解,在该实施例4中,所述终端设备进行反向散射通信的方式可以参考实施例1和实施例2中的相关描述,为了简洁,这里不再赘述。
综上,在本申请实施例中,可以利用第三方设备给终端设备提供供能信号和/或载波信号,在一个具体实现中,可以通过同一第三方设备为终端设备提供上行供能信号和下行供能信号,在另一具体实现中,可以通过不同的第三方设备分别为终端设备提供上行供能信号和下行供能信号,在又一具体实现中,可以通过网络设备为终端设备提供下行供能信号,通过第三方设备为终端设备提供下行供能信号,在又一具体实现中,在FDD系统中,也可以通过网络设备为终端设备提供上行供能信号和下行供能信号)。进一步地,可以利用上行供能信号作为终端设备进行反向散射通信的载波信号,或者,终端设备也可以利用单独的载波信号进行反向散射通信,从而解决了TDD频谱中的终端设备的反向散射通信中的供能和载波问题。
上文结合图6至图21,详细描述了本申请的方法实施例,下文结合图22至图27,详细描述本申请的装置实施例,应理解,装置实施例与方法实施例相互对应,类似的描述可以参照方法实施例。
图22示出了根据本申请实施例的终端设备400的示意性框图。如图22所示,该终端设备400包括:
通信单元410,用于接收第一设备发送的信号,所述信号用于给所述终端设备供能和/或用于所述终端设备进行反向散射通信,所述第一设备为给所述终端设备提供服务的网络设备之外的其他设备。
在一些实施例中,所述通信单元410还用于:
在上行资源上接收所述第一设备发送的第一信号,所述第一信号用于给所述终端设备供能和/或用于所述终端设备进行反向散射通信。
在一些实施例中,所述第一信号用于所述终端设备进行反向散射通信,所述终端设备400还包括:
处理单元,用于对所述第一信号进行调制得到反向散射信号;
所述通信单元410还用于:向所述网络设备发送所述反向散射信号。
在一些实施例中,所述第一信号不用于所述终端设备进行反向散射通信,所述终端设备400还包括:
处理单元,用于对第二设备发送的第一载波信号进行调制得到反向散射信号;
所述通信单元410还用于:向所述网络设备发送所述反向散射信号。
在一些实施例中,所述通信单元410还用于:
在下行资源上接收所述第一设备发送的第二信号,所述第二信号用于给所述终端设备供能。
在一些实施例中,所述通信单元410还用于:
接收网络设备发送的第三信号,所述第三信号用于调度或触发所述终端设备进行反向散射通信。
在一些实施例中,所述第三信号包括第一指示信息,所述第一指示信息用于指示第一时间单元偏移量,所述第一时间单元偏移量用于指示所述终端设备发送反向散射信号的时间单元相对于所述第三信号所在时间单元的时间单元偏移量。
在一些实施例中,所述通信单元410还用于:
在所述第三信号未指示所述终端设备发送反向散射信号的时间信息的情况下,在所述第三信号所在时间单元的下一个时间单元上进行反向散射通信;或者
在所述第三信号未指示所述终端设备发送反向散射信号的时间信息的情况下,在所述第三信号所在时间单元之后的第一个上行资源上进行反向散射通信。
在一些实施例中,所述终端设备为零功耗设备,所述第一设备为专用供能节点,所述第一设备非零功耗设备。
可选地,在一些实施例中,上述通信单元可以是通信接口或收发器,或者是通信芯片或者片上系统的输入输出接口。上述处理单元可以是一个或多个处理器。
应理解,根据本申请实施例的终端设备400可对应于本申请方法实施例中的终端设备,并且终端设备400中的各个单元的上述和其它操作和/或功能分别为了实现图6至图21所示方法200中终端设备的相应流程,为了简洁,在此不再赘述。
图23示出了根据本申请实施例的无线通信的设备800的示意性框图。如图23所示,该设备800包括:
通信单元810,用于向终端设备发送信号,所述信号用于给所述终端设备供能和/或用于所述终端设备进行反向散射通信,其中,所述设备为给所述终端设备提供服务的网络设备之外的其他设备。
在一些实施例中,所述通信单元810还用于:
在上行资源上向所述终端设备发送第一信号,所述第一信号用于给所述终端设备供能和/或用于所述终端设备进行反向散射通信。
在一些实施例中,所述通信单元810还用于:
接收所述网络设备发送的第四信号,所述第四信号用于调度或触发所述设备发送所述第一信号,所述第一信号是所述设备基于所述第四信号发送的。
在一些实施例中,所述第四信号用于调度所述设备从可用于上行数据传输的第一个时间单元开始发送所述第一信号;或者
所述第四信号用于调度所述设备在可用于上行数据传输的第一个时间单元之前开始发送所述第一信号;或者
所述第四信号用于调度所述设备在可用于上行数据传输的第一个时间单元之后开始发送所述第一信号。
在一些实施例中,所述通信单元810还用于:在第一时间窗口内发送所述第一信号。
在一些实施例中,所述第一时间窗口是根据预定义信息和/或所述网络设备的指示信息确定的。
在一些实施例中,所述第一时间窗口根据所述网络设备发送的第四信号中的所述第一信号的调度信息确定,其中,所述第四信号用于调度或触发所述设备发送所述第一信号。
在一些实施例中,所述第一信号的调度信息包括第二时间单元偏移量和/或第一时长,所述第二时间单元偏移量用于指示所述设备开始发送所述第一信号的时间单元相对于所述第四信号所在时间单元的的时间单元偏移量,所述第一时长用于指示所述设备发送所述第一信号的持续时长。
在一些实施例中,所述第一信号的调度信息包括第二指示信息,所述第二指示信息用于指示多个预定义时间窗口中的一个时间窗口。
在一些实施例中,所述通信单元810还用于:在第一时间单元集合上发送所述第一信号。
在一些实施例中,所述第一时间单元集合是根据预定义信息和/或所述网络设备的指示信息确定的。
在一些实施例中,所述网络设备的指示信息包括第三指示信息,所述第三指示信息用于指示多个预定义时间单元集合中的一个。
在一些实施例中,所述第一信号是所述设备以第一发送功率发送的,其中,所述第一发送功率是预定义的,或者是由所述网络设备配置的,或者是由所述设备确定的。
在一些实施例中,所述通信单元810还用于:
根据所述网络设备的控制信号,开始或停止向所述终端设备发送所述第一信号。
在一些实施例中,所述通信单元810还用于:
在下行资源上向所述终端设备发送第二信号,所述第二信号用于给所述终端设备供能。
在一些实施例中,所述通信单元810还用于:
接收所述网络设备发送的第五信号,所述第五信号用于调度或触发所述设备发送所述第二信号,所述第二信号是所述设备基于所述第五信号发送的。
在一些实施例中,所述通信单元810还用于:在第二时间窗口内发送所述第二信号。
在一些实施例中,所述第二时间窗口根据预定义信息和/或所述网络设备的指示信息确定。
在一些实施例中,所述第二时间窗口根据第五信号中的所述第二信号的调度信息确定,其中,所述第五信号用于调度或触发所述设备发送所述第二信号。
在一些实施例中,所述第二信号的调度信息包括第三时间单元偏移量和/或第二时长,所述第三时间单元偏移量用于指示所述设备开始发送所述第二信号的时间单元相对于所述第五信号所在时间单元的的时间单元偏移量,所述第二时长用于指示所述设备发送所述第二信号的持续时长。
在一些实施例中,所述第二信号的调度信息包括第四指示信息,所述第四指示信息用于指示多个预定义时间窗口中的一个时间窗口。
在一些实施例中,所述通信单元810还用于:
在第二时间单元集合上发送所述第二信号。
在一些实施例中,所述第二时间单元集合根据预定义信息和/或所述网络设备的指示信息确定。
在一些实施例中,所述网络设备的指示信息包括第五指示信息,所述第五指示信息用于指示多个预定义时间单元集合中的一个。
在一些实施例中,所述第二信号是所述设备以第二发送功率发送的,其中,所述第二发送功率是预定义的,或者是由所述网络设备配置的,或者是由所述设备确定的。
在一些实施例中,所述通信单元810还用于:
接收所述网络设备发送的功率切换指示信号;
所述设备800还包括:
处理单元,用于根据所述功率切换指示信号,将发送信号所使用的功率从所述第二发送功率切换至第一发送功率,所述第一发送功率是所述设备在上行资源上发送第一信号所采用的发送功率,所述第一信号用于给所述终端设备供能和/或用于所述终端设备进行反向散射通信。
在一些实施例中,所述处理单元具体用于:
在接收到所述功率切换指示信号的情况下,立即切换至所述第一发送功率;或者
在接收到所述功率切换指示信号的情况下,在下一时间单元上切换至所述第一发送功率;
在接收到所述功率切换指示信号的情况下,在接收所述功率切换指示信号的时间单元之后的第一个上行时间单元上切换至所述第一发送功率。
可选地,在一些实施例中,上述通信单元810可以是通信接口或收发器,或者是通信芯片或者片上系统的输入输出接口。上述处理单元可以是一个或多个处理器。
应理解,根据本申请实施例的设备800可对应于本申请方法实施例中的第一设备,并且设备800中的各个单元的上述和其它操作和/或功能分别为了实现图6至图21所示方法实施例中第一设备的相应流程,为了简洁,在此不再赘述。
图24是根据本申请实施例的网络设备的示意性框图。图24的网络设备500包括:
通信单元510,用于向第一设备发送调度信号,所述调度信号用于调度或触发所述第一设备向终端设备发送信号,所述信号用于给所述终端设备供能和/或用于所述终端设备进行反向散射通信。
在一些实施例中,所述调度信号包括第四信号,所述通信单元510还用于:
向所述第一设备发送第四信号,所述第四信号用于调度或触发所述第一设备发送第一信号,所述第一信号用于给所述终端设备供能和/或用于所述终端设备进行反向散射通信。
在一些实施例中,所述第四信号用于调度所述第一设备从可用于上行数据传输的第一个时间单元开始发送所述第一信号;或者
所述第四信号用于调度所述第一设备在可用于上行数据传输的第一个时间单元之前开始发送所述第一信号;或者
所述第四信号用于调度所述第一设备在可用于上行数据传输的第一个时间单元之后开始发送所述第一信号。
在一些实施例中,所述第四信号用于调度所述第一设备在第一时间窗口内发送所述第一信号。
在一些实施例中,所述第四信号包括所述第一信号的调度信息,所述第一时间窗口根据所述第一信号的调度信息确定。
在一些实施例中,所述第一信号的调度信息包括第二时间单元偏移量和/或第一时长,所述第二时间单元偏移量用于指示所述第一设备开始发送所述第一信号的时间单元相对于所述第四信号所在时间单元的的时间单元偏移量,所述第一时长用于指示所述第一设备发送所述第一信号的持续时长; 或者
所述第一信号的调度信息包括第二指示信息,所述第二指示信息用于指示多个预定义时间窗口中的一个时间窗口。
在一些实施例中,所述第四信号用于调度所述第一设备在第一时间单元集合上发送所述第一信号。
在一些实施例中,所述第四信号包括第三指示信息,所述第三指示信息用于指示多个预定义时间单元集合中的一个。
在一些实施例中,所述第四信号包括第六指示信息,所述第六指示信息用于指示所述第一信号的发送功率。
在一些实施例中,所述调度信号包括第五信号,所述通信单元510还用于:
向所述第一设备发送第五信号,所述第五信号用于调度或触发所述第一设备发送第二信号,所述第二信号用于给所述终端设备供能。
在一些实施例中,所述第五信号用于调度所述第一设备在第二时间窗口内发送所述第二信号。
在一些实施例中,所述第五信号包括所述第二信号的调度信息,所述第二时间窗口根据所述第二信号的调度信息确定。
在一些实施例中,所述第二信号的调度信息包括第三时间单元偏移量和/或第二时长,所述第三时间单元偏移量用于指示所述第一设备开始发送所述第二信号的时间单元相对于所述第五信号所在时间单元的的时间单元偏移量,所述第二时长用于指示所述第一设备发送所述第二信号的持续时长;或者
所述第二信号的调度信息包括第四指示信息,所述第四指示信息用于指示多个预定义时间窗口中的所述第二时间窗口。
在一些实施例中,所述第五信号用于调度所述第一设备在第二时间单元集合上发送所述第二信号。
在一些实施例中,所述第二时间单元集合根据预定义信息和/或所述网络设备的指示信息确定。
在一些实施例中,所述网络设备的指示信息包括第五指示信息,所述第五指示信息用于指示多个预定义时间单元集合中的一个。
在一些实施例中,所述第五信号包括第七指示信息,所述第七指示信息用于指示所述第二信号的发送功率。
在一些实施例中,所述通信单元510还用于:
在下行资源上发送第二信号,所述第二信号用于给所述终端设备供能。
在一些实施例中,所述通信单元510还用于:
向终端设备发送第三信号,所述第三信号用于调度或触发所述终端设备向终端设备发送反向散射信号。
在一些实施例中,所述第三信号包括第一指示信息,所述第一指示信息用于指示第一时间单元偏移量,所述第一时间单元偏移量用于指示所述终端设备发送反向散射信号的时间单元相对于所述第三信号所在时间单元的时间单元偏移量。
在一些实施例中,所述通信单元510还用于:
向所述第一设备发送功率切换指示信号,其中,所述功率切换指示信号用于指示所述第一设备将信号的发送功率从第二发送功率切换至第一发送功率,其中,所述第一发送功率是所述第一设备在上行资源上发送第一信号的发送功率,所述第二发送功率是所述第一设备在下行资源上发送第二信号的发送功率,所述第一信号用于给所述终端设备供能和/或用于所述终端设备进行反向散射通信,所述第二信号用于给所述终端设备供能。
可选地,在一些实施例中,上述通信单元510可以是通信接口或收发器,或者是通信芯片或者片上系统的输入输出接口。上述处理单元可以是一个或多个处理器。
应理解,根据本申请实施例的网络设备500可对应于本申请方法实施例中的网络设备,并且网络设备500中的各个单元的上述和其它操作和/或功能分别为了实现图6至图21所示方法中网络设备的相应流程,为了简洁,在此不再赘述。
图25是本申请实施例提供的一种通信设备600示意性结构图。图14所示的通信设备600包括处理器610,处理器610可以从存储器中调用并运行计算机程序,以实现本申请实施例中的方法。
可选地,如图25所示,通信设备600还可以包括存储器620。其中,处理器610可以从存储器620中调用并运行计算机程序,以实现本申请实施例中的方法。
其中,存储器620可以是独立于处理器610的一个单独的器件,也可以集成在处理器610中。
可选地,如图25所示,通信设备600还可以包括收发器630,处理器610可以控制该收发器630与其他设备进行通信,具体地,可以向其他设备发送信息或数据,或接收其他设备发送的信息或数据。
其中,收发器630可以包括发射机和接收机。收发器630还可以进一步包括天线,天线的数量可以为一个或多个。
可选地,该通信设备600具体可为本申请实施例的网络设备,并且该通信设备600可以实现本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该通信设备600具体可为本申请实施例的第一设备,并且该通信设备600可以实现本申请实施例的各个方法中由第一设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该通信设备600具体可为本申请实施例的终端设备,并且该通信设备600可以实现本申请实施例的各个方法中由终端设备实现的相应流程,为了简洁,在此不再赘述。
图26是本申请实施例的芯片的示意性结构图。图26所示的芯片700包括处理器710,处理器710可以从存储器中调用并运行计算机程序,以实现本申请实施例中的方法。
可选地,如图26所示,芯片700还可以包括存储器720。其中,处理器710可以从存储器720中调用并运行计算机程序,以实现本申请实施例中的方法。
其中,存储器720可以是独立于处理器710的一个单独的器件,也可以集成在处理器710中。
可选地,该芯片700还可以包括输入接口730。其中,处理器710可以控制该输入接口730与其他设备或芯片进行通信,具体地,可以获取其他设备或芯片发送的信息或数据。
可选地,该芯片700还可以包括输出接口740。其中,处理器710可以控制该输出接口740与其他设备或芯片进行通信,具体地,可以向其他设备或芯片输出信息或数据。
可选地,该芯片可应用于本申请实施例中的网络设备,并且该芯片可以实现本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该芯片可应用于本申请实施例中的终端设备,并且该芯片可以实现本申请实施例的各个方法中由终端设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该芯片可应用于本申请实施例中的第一设备,并且该芯片可以实现本申请实施例的各个方法中由第一设备实现的相应流程,为了简洁,在此不再赘述。
应理解,本申请实施例提到的芯片还可以称为系统级芯片,系统芯片,芯片系统或片上系统芯片等。
图27是本申请实施例提供的一种通信系统900的示意性框图。如图27所示,该通信系统900包括终端设备910、网络设备920和第一设备930。
其中,该终端设备910可以用于实现上述方法中由终端设备实现的相应的功能,以及该网络设备920可以用于实现上述方法中由网络设备实现的相应的功能,该第一设备930可以用于上行上述方法中由第一设备实现的相应的功能,为了简洁,在此不再赘述。
应理解,本申请实施例的处理器可能是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(Digital Signal Processor,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现成可编程门阵列(Field Programmable Gate Array,FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器,处理器读取存储器中的信息,结合其硬件完成上述方法的步骤。
可以理解,本申请实施例中的存储器可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)。应注意,本文描述 的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
应理解,上述存储器为示例性但不是限制性说明,例如,本申请实施例中的存储器还可以是静态随机存取存储器(static RAM,SRAM)、动态随机存取存储器(dynamic RAM,DRAM)、同步动态随机存取存储器(synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(synch link DRAM,SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)等等。也就是说,本申请实施例中的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本申请实施例还提供了一种计算机可读存储介质,用于存储计算机程序。
可选的,该计算机可读存储介质可应用于本申请实施例中的网络设备,并且该计算机程序使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该计算机可读存储介质可应用于本申请实施例中的移动终端/终端设备,并且该计算机程序使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该计算机可读存储介质可应用于本申请实施例中的第一设备,并且该计算机程序使得计算机执行本申请实施例的各个方法中由第一设备实现的相应流程,为了简洁,在此不再赘述。
本申请实施例还提供了一种计算机程序产品,包括计算机程序指令。
可选的,该计算机程序产品可应用于本申请实施例中的网络设备,并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该计算机程序产品可应用于本申请实施例中的移动终端/终端设备,并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该计算机程序产品可应用于本申请实施例中的第一设备,并且该计算机程序指令使得计算机执行本申请实施例的各个方法中由第一设备实现的相应流程,为了简洁,在此不再赘述。
本申请实施例还提供了一种计算机程序。
可选的,该计算机程序可应用于本申请实施例中的网络设备,当该计算机程序在计算机上运行时,使得计算机执行本申请实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该计算机程序可应用于本申请实施例中的移动终端/终端设备,当该计算机程序在计算机上运行时,使得计算机执行本申请实施例的各个方法中由移动终端/终端设备实现的相应流程,为了简洁,在此不再赘述。
可选地,该计算机程序可应用于本申请实施例中的第一设备,当该计算机程序在计算机上运行时,使得计算机执行本申请实施例的各个方法中由第一设备实现的相应流程,为了简洁,在此不再赘述。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本申请 各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应所述以权利要求的保护范围为准。

Claims (131)

  1. 一种无线通信的方法,其特征在于,包括:
    终端设备接收第一设备发送的信号,所述信号用于给所述终端设备供能和/或用于所述终端设备进行反向散射通信,所述第一设备为给所述终端设备提供服务的网络设备之外的其他设备。
  2. 根据权利要求1所述的方法,其特征在于,所述终端设备接收第一设备发送的信号,包括:
    所述终端设备在上行资源上接收所述第一设备发送的第一信号,所述第一信号用于给所述终端设备供能和/或用于所述终端设备进行反向散射通信。
  3. 根据权利要求2所述的方法,其特征在于,所述第一信号用于所述终端设备进行反向散射通信,所述方法还包括:
    所述终端设备对所述第一信号进行调制得到反向散射信号;
    向所述网络设备发送所述反向散射信号。
  4. 根据权利要求2所述的方法,其特征在于,所述第一信号不用于所述终端设备进行反向散射通信,所述方法还包括:
    所述终端设备对第二设备发送的第一载波信号进行调制得到反向散射信号;
    所述终端设备向所述网络设备发送所述反向散射信号。
  5. 根据权利要求1-4中任一项所述的方法,其特征在于,所述终端设备接收第一设备发送的信号,包括:
    所述终端设备在下行资源上接收所述第一设备发送的第二信号,所述第二信号用于给所述终端设备供能。
  6. 根据权利要求1-5中任一项所述的方法,其特征在于,所述方法还包括:
    所述终端设备接收网络设备发送的第三信号,所述第三信号用于调度或触发所述终端设备进行反向散射通信。
  7. 根据权利要求6所述的方法,其特征在于,所述第三信号包括第一指示信息,所述第一指示信息用于指示第一时间单元偏移量,所述第一时间单元偏移量用于指示所述终端设备发送反向散射信号的时间单元相对于所述第三信号所在时间单元的时间单元偏移量。
  8. 根据权利要求6所述的方法,其特征在于,所述方法还包括:
    在所述第三信号未指示所述终端设备发送反向散射信号的时间信息的情况下,所述终端设备确定在所述第三信号所在时间单元的下一个时间单元上进行反向散射通信;或者
    在所述第三信号未指示所述终端设备发送反向散射信号的时间信息的情况下,所述终端设备确定在所述第三信号所在时间单元之后的第一个上行资源上进行反向散射通信。
  9. 根据权利要求1-8中任一项所述的方法,其特征在于,所述终端设备为零功耗设备,所述第一设备为专用供能节点,所述第一设备非零功耗设备。
  10. 一种无线通信的方法,其特征在于,包括:
    第一设备向终端设备发送信号,所述信号用于给所述终端设备供能和/或用于所述终端设备进行反向散射通信,其中,所述第一设备为给所述终端设备提供服务的网络设备之外的其他设备。
  11. 根据权利要求10所述的方法,其特征在于,所述第一设备向终端设备发送信号,包括:
    所述第一设备在上行资源上向所述终端设备发送第一信号,所述第一信号用于给所述终端设备供能和/或用于所述终端设备进行反向散射通信。
  12. 根据权利要求11所述的方法,其特征在于,所述方法还包括:
    所述第一设备接收所述网络设备发送的第四信号,所述第四信号用于调度或触发所述第一设备发送所述第一信号,所述第一信号是所述第一设备基于所述第四信号发送的。
  13. 根据权利要求12所述的方法,其特征在于,所述第四信号用于调度所述第一设备从可用于上行数据传输的第一个时间单元开始发送所述第一信号;或者
    所述第四信号用于调度所述第一设备在可用于上行数据传输的第一个时间单元之前开始发送所述第一信号;或者
    所述第四信号用于调度所述第一设备在可用于上行数据传输的第一个时间单元之后开始发送所述第一信号。
  14. 根据权利要求11-13中任一项所述的方法,其特征在于,所述第一设备在第一时间窗口内发送所述第一信号。
  15. 根据权利要求14所述的方法,其特征在于,所述第一时间窗口是根据预定义信息和/或所述网络设备的指示信息确定的。
  16. 根据权利要求14或15所述的方法,其特征在于,所述第一时间窗口根据所述网络设备发送 的第四信号中的所述第一信号的调度信息确定,其中,所述第四信号用于调度或触发所述第一设备发送所述第一信号。
  17. 根据权利要求16所述的方法,其特征在于,所述第一信号的调度信息包括第二时间单元偏移量和/或第一时长,所述第二时间单元偏移量用于指示所述第一设备开始发送所述第一信号的时间单元相对于所述第四信号所在时间单元的的时间单元偏移量,所述第一时长用于指示所述第一设备发送所述第一信号的持续时长。
  18. 根据权利要求16所述的方法,其特征在于,所述第一信号的调度信息包括第二指示信息,所述第二指示信息用于指示多个预定义时间窗口中的一个时间窗口。
  19. 根据权利要求11-13中任一项所述的方法,其特征在于,所述第一设备在第一时间单元集合上发送所述第一信号。
  20. 根据权利要求19所述的方法,其特征在于,所述第一时间单元集合是根据预定义信息和/或所述网络设备的指示信息确定的。
  21. 根据权利要求20所述的方法,其特征在于,所述网络设备的指示信息包括第三指示信息,所述第三指示信息用于指示多个预定义时间单元集合中的一个。
  22. 根据权利要求11-21中任一项所述的方法,其特征在于,所述第一信号是所述第一设备以第一发送功率发送的,其中,所述第一发送功率是预定义的,或者是由所述网络设备配置的,或者是由所述第一设备确定的。
  23. 根据权利要求11-22中任一项所述的方法,其特征在于,所述第一设备根据所述网络设备的控制信号,开始或停止向所述终端设备发送所述第一信号。
  24. 根据权利要求10-23中任一项所述的方法,其特征在于,所述第一设备向终端设备发送信号,包括:
    所述第一设备在下行资源上向所述终端设备发送第二信号,所述第二信号用于给所述终端设备供能。
  25. 根据权利要求24所述的方法,其特征在于,所述方法还包括:
    所述第一设备接收所述网络设备发送的第五信号,所述第五信号用于调度或触发所述第一设备发送所述第二信号,所述第二信号是所述第一设备基于所述第五信号发送的。
  26. 根据权利要求24或25所述的方法,其特征在于,所述第一设备在第二时间窗口内发送所述第二信号。
  27. 根据权利要求26所述的方法,其特征在于,所述第二时间窗口根据预定义信息和/或所述网络设备的指示信息确定。
  28. 根据权利要求26或27所述的方法,其特征在于,所述第二时间窗口根据第五信号中的所述第二信号的调度信息确定,其中,所述第五信号用于调度或触发所述第一设备发送所述第二信号。
  29. 根据权利要求28所述的方法,其特征在于,所述第二信号的调度信息包括第三时间单元偏移量和/或第二时长,所述第三时间单元偏移量用于指示所述第一设备开始发送所述第二信号的时间单元相对于所述第五信号所在时间单元的的时间单元偏移量,所述第二时长用于指示所述第一设备发送所述第二信号的持续时长。
  30. 根据权利要求28所述的方法,其特征在于,所述第二信号的调度信息包括第四指示信息,所述第四指示信息用于指示多个预定义时间窗口中的一个时间窗口。
  31. 根据权利要求24或25所述的方法,其特征在于,所述第一设备在第二时间单元集合上发送所述第二信号。
  32. 根据权利要求31所述的方法,其特征在于,所述第二时间单元集合根据预定义信息和/或所述网络设备的指示信息确定。
  33. 根据权利要求32所述的方法,其特征在于,所述网络设备的指示信息包括第五指示信息,所述第五指示信息用于指示多个预定义时间单元集合中的一个。
  34. 根据权利要求24-33中任一项所述的方法,其特征在于,所述第二信号是所述第一设备以第二发送功率发送的,其中,所述第二发送功率是预定义的,或者是由所述网络设备配置的,或者是由所述第一设备确定的。
  35. 根据权利要求34所述的方法,其特征在于,所述方法还包括:
    所述第一设备接收所述网络设备发送的功率切换指示信号;
    所述第一设备根据所述功率切换指示信号,将发送信号所使用的功率从所述第二发送功率切换至第一发送功率,所述第一发送功率是所述第一设备在上行资源上发送第一信号所采用的发送功率,所述第一信号用于给所述终端设备供能和/或用于所述终端设备进行反向散射通信。
  36. 根据权利要求35所述的方法,其特征在于,所述第一设备根据所述功率切换指示信号,将发送信号所使用的功率从所述第二发送功率切换至第一发送功率,包括:
    所述第一设备在接收到所述功率切换指示信号的情况下,立即切换至所述第一发送功率;或者
    所述第一设备在接收到所述功率切换指示信号的情况下,在下一时间单元上切换至所述第一发送功率;
    所述第一设备在接收到所述功率切换指示信号的情况下,在接收所述功率切换指示信号的时间单元之后的第一个上行时间单元上切换至所述第一发送功率。
  37. 根据权利要求24-36中任一项所述的方法,其特征在于,所述第一设备根据所述网络设备的控制信号,开始或停止向所述终端设备发送所述第二信号。
  38. 一种无线通信的方法,其特征在于,包括:
    网络设备向第一设备发送调度信号,所述调度信号用于调度或触发所述第一设备向终端设备发送信号,所述信号用于给所述终端设备供能和/或用于所述终端设备进行反向散射通信。
  39. 根据权利要求38所述的方法,其特征在于,所述调度信号包括第四信号,所述网络设备向第一设备发送调度信号,包括:
    所述网络设备向所述第一设备发送第四信号,所述第四信号用于调度或触发所述第一设备发送第一信号,所述第一信号用于给所述终端设备供能和/或用于所述终端设备进行反向散射通信。
  40. 根据权利要求39所述的方法,其特征在于,所述第四信号用于调度所述第一设备从可用于上行数据传输的第一个时间单元开始发送所述第一信号;或者
    所述第四信号用于调度所述第一设备在可用于上行数据传输的第一个时间单元之前开始发送所述第一信号;或者
    所述第四信号用于调度所述第一设备在可用于上行数据传输的第一个时间单元之后开始发送所述第一信号。
  41. 根据权利要求39或40所述的方法,其特征在于,所述第四信号用于调度所述第一设备在第一时间窗口内发送所述第一信号。
  42. 根据权利要求41所述的方法,其特征在于,所述第四信号包括所述第一信号的调度信息,所述第一时间窗口根据所述第一信号的调度信息确定。
  43. 根据权利要求42所述的方法,其特征在于,所述第一信号的调度信息包括第二时间单元偏移量和/或第一时长,所述第二时间单元偏移量用于指示所述第一设备开始发送所述第一信号的时间单元相对于所述第四信号所在时间单元的的时间单元偏移量,所述第一时长用于指示所述第一设备发送所述第一信号的持续时长;或者
    所述第一信号的调度信息包括第二指示信息,所述第二指示信息用于指示多个预定义时间窗口中的一个时间窗口。
  44. 根据权利要求39或40所述的方法,其特征在于,所述第四信号用于调度所述第一设备在第一时间单元集合上发送所述第一信号。
  45. 根据权利要求44所述的方法,其特征在于,所述第四信号包括第三指示信息,所述第三指示信息用于指示多个预定义时间单元集合中的一个。
  46. 根据权利要求39-45中任一项所述的方法,其特征在于,所述第四信号包括第六指示信息,所述第六指示信息用于指示所述第一信号的发送功率。
  47. 根据权利要求38-46中任一项所述的方法,其特征在于,所述调度信号包括第五信号,所述网络设备向第一设备发送调度信号,包括:
    所述网络设备向所述第一设备发送第五信号,所述第五信号用于调度或触发所述第一设备发送第二信号,所述第二信号用于给所述终端设备供能。
  48. 根据权利要求47所述的方法,其特征在于,所述第五信号用于调度所述第一设备在第二时间窗口内发送所述第二信号。
  49. 根据权利要求48所述的方法,其特征在于,所述第五信号包括所述第二信号的调度信息,所述第二时间窗口根据所述第二信号的调度信息确定。
  50. 根据权利要求49所述的方法,其特征在于,所述第二信号的调度信息包括第三时间单元偏移量和/或第二时长,所述第三时间单元偏移量用于指示所述第一设备开始发送所述第二信号的时间单元相对于所述第五信号所在时间单元的的时间单元偏移量,所述第二时长用于指示所述第一设备发送所述第二信号的持续时长;或者
    所述第二信号的调度信息包括第四指示信息,所述第四指示信息用于指示多个预定义时间窗口中的所述第二时间窗口。
  51. 根据权利要求47所述的方法,其特征在于,所述第五信号用于调度所述第一设备在第二时间单元集合上发送所述第二信号。
  52. 根据权利要求51所述的方法,其特征在于,所述第二时间单元集合根据预定义信息和/或所述网络设备的指示信息确定。
  53. 根据权利要求52所述的方法,其特征在于,所述网络设备的指示信息包括第五指示信息,所述第五指示信息用于指示多个预定义时间单元集合中的一个。
  54. 根据权利要求47-53中任一项所述的方法,其特征在于,所述第五信号包括第七指示信息,所述第七指示信息用于指示所述第二信号的发送功率。
  55. 根据权利要求38-46中任一项所述的方法,其特征在于,所述方法还包括:
    所述网络设备在下行资源上发送第二信号,所述第二信号用于给所述终端设备供能。
  56. 根据权利要求38-55中任一项所述的方法,其特征在于,所述方法还包括:
    所述网络设备向所述终端设备发送第三信号,所述第三信号用于调度或触发所述终端设备向终端设备发送反向散射信号。
  57. 根据权利要求56所述的方法,其特征在于,所述第三信号包括第一指示信息,所述第一指示信息用于指示第一时间单元偏移量,所述第一时间单元偏移量用于指示所述终端设备发送反向散射信号的时间单元相对于所述第三信号所在时间单元的时间单元偏移量。
  58. 根据权利要求38-57中任一项所述的方法,其特征在于,所述方法还包括:
    所述网络设备向所述第一设备发送功率切换指示信号,其中,所述功率切换指示信号用于指示所述第一设备将信号的发送功率从第二发送功率切换至第一发送功率,其中,所述第一发送功率是所述第一设备在上行资源上发送第一信号的发送功率,所述第二发送功率是所述第一设备在下行资源上发送第二信号的发送功率,所述第一信号用于给所述终端设备供能和/或用于所述终端设备进行反向散射通信,所述第二信号用于给所述终端设备供能。
  59. 一种终端设备,其特征在于,包括:
    通信单元,用于接收第一设备发送的信号,所述信号用于给所述终端设备供能和/或用于所述终端设备进行反向散射通信,所述第一设备为给所述终端设备提供服务的网络设备之外的其他设备。
  60. 根据权利要求59所述的终端设备,其特征在于,所述通信单元还用于:
    在上行资源上接收所述第一设备发送的第一信号,所述第一信号用于给所述终端设备供能和/或用于所述终端设备进行反向散射通信。
  61. 根据权利要求60所述的终端设备,其特征在于,所述第一信号用于所述终端设备进行反向散射通信,所述终端设备还包括:
    处理单元,用于对所述第一信号进行调制得到反向散射信号;
    所述通信单元还用于:向所述网络设备发送所述反向散射信号。
  62. 根据权利要求60所述的终端设备,其特征在于,所述第一信号不用于所述终端设备进行反向散射通信,所述终端设备还包括:
    处理单元,用于对第二设备发送的第一载波信号进行调制得到反向散射信号;
    所述通信单元还用于:向所述网络设备发送所述反向散射信号。
  63. 根据权利要求59-62中任一项所述的终端设备,其特征在于,所述通信单元还用于:
    在下行资源上接收所述第一设备发送的第二信号,所述第二信号用于给所述终端设备供能。
  64. 根据权利要求59-63中任一项所述的终端设备,其特征在于,所述通信单元还用于:
    接收网络设备发送的第三信号,所述第三信号用于调度或触发所述终端设备进行反向散射通信。
  65. 根据权利要求64所述的终端设备,其特征在于,所述第三信号包括第一指示信息,所述第一指示信息用于指示第一时间单元偏移量,所述第一时间单元偏移量用于指示所述终端设备发送反向散射信号的时间单元相对于所述第三信号所在时间单元的时间单元偏移量。
  66. 根据权利要求64所述的终端设备,其特征在于,所述通信单元还用于:
    在所述第三信号未指示所述终端设备发送反向散射信号的时间信息的情况下,在所述第三信号所在时间单元的下一个时间单元上进行反向散射通信;或者
    在所述第三信号未指示所述终端设备发送反向散射信号的时间信息的情况下,在所述第三信号所在时间单元之后的第一个上行资源上进行反向散射通信。
  67. 根据权利要求59-66中任一项所述的终端设备,其特征在于,所述终端设备为零功耗设备,所述第一设备为专用供能节点,所述第一设备非零功耗设备。
  68. 一种无线通信的设备,其特征在于,包括:
    通信单元,用于向终端设备发送信号,所述信号用于给所述终端设备供能和/或用于所述终端设 备进行反向散射通信,其中,所述设备为给所述终端设备提供服务的网络设备之外的其他设备。
  69. 根据权利要求68所述的设备,其特征在于,所述通信单元还用于:
    在上行资源上向所述终端设备发送第一信号,所述第一信号用于给所述终端设备供能和/或用于所述终端设备进行反向散射通信。
  70. 根据权利要求69所述的设备,其特征在于,所述通信单元还用于:
    接收所述网络设备发送的第四信号,所述第四信号用于调度或触发所述设备发送所述第一信号,所述第一信号是所述设备基于所述第四信号发送的。
  71. 根据权利要求70所述的设备,其特征在于,所述第四信号用于调度所述设备从可用于上行数据传输的第一个时间单元开始发送所述第一信号;或者
    所述第四信号用于调度所述设备在可用于上行数据传输的第一个时间单元之前开始发送所述第一信号;或者
    所述第四信号用于调度所述设备在可用于上行数据传输的第一个时间单元之后开始发送所述第一信号。
  72. 根据权利要求69-71中任一项所述的设备,其特征在于,所述通信单元还用于:
    在第一时间窗口内发送所述第一信号。
  73. 根据权利要求72所述的设备,其特征在于,所述第一时间窗口是根据预定义信息和/或所述网络设备的指示信息确定的。
  74. 根据权利要求72或73所述的设备,其特征在于,所述第一时间窗口根据所述网络设备发送的第四信号中的所述第一信号的调度信息确定,其中,所述第四信号用于调度或触发所述设备发送所述第一信号。
  75. 根据权利要求74所述的设备,其特征在于,所述第一信号的调度信息包括第二时间单元偏移量和/或第一时长,所述第二时间单元偏移量用于指示所述设备开始发送所述第一信号的时间单元相对于所述第四信号所在时间单元的的时间单元偏移量,所述第一时长用于指示所述设备发送所述第一信号的持续时长。
  76. 根据权利要求74所述的设备,其特征在于,所述第一信号的调度信息包括第二指示信息,所述第二指示信息用于指示多个预定义时间窗口中的一个时间窗口。
  77. 根据权利要求69-71中任一项所述的设备,其特征在于,所述通信单元还用于:
    在第一时间单元集合上发送所述第一信号。
  78. 根据权利要求77所述的设备,其特征在于,所述第一时间单元集合是根据预定义信息和/或所述网络设备的指示信息确定的。
  79. 根据权利要求78所述的设备,其特征在于,所述网络设备的指示信息包括第三指示信息,所述第三指示信息用于指示多个预定义时间单元集合中的一个。
  80. 根据权利要求69-79中任一项所述的设备,其特征在于,所述第一信号是所述设备以第一发送功率发送的,其中,所述第一发送功率是预定义的,或者是由所述网络设备配置的,或者是由所述设备确定的。
  81. 根据权利要求69-80中任一项所述的设备,其特征在于,所述通信单元还用于:
    根据所述网络设备的控制信号,开始或停止向所述终端设备发送所述第一信号。
  82. 根据权利要求68-81中任一项所述的设备,其特征在于,所述通信单元还用于:
    在下行资源上向所述终端设备发送第二信号,所述第二信号用于给所述终端设备供能。
  83. 根据权利要求82所述的设备,其特征在于,所述通信单元还用于:
    接收所述网络设备发送的第五信号,所述第五信号用于调度或触发所述设备发送所述第二信号,所述第二信号是所述设备基于所述第五信号发送的。
  84. 根据权利要求82或83所述的设备,其特征在于,所述通信单元还用于:
    在第二时间窗口内发送所述第二信号。
  85. 根据权利要求84所述的设备,其特征在于,所述第二时间窗口根据预定义信息和/或所述网络设备的指示信息确定。
  86. 根据权利要求84或85所述的设备,其特征在于,所述第二时间窗口根据第五信号中的所述第二信号的调度信息确定,其中,所述第五信号用于调度或触发所述设备发送所述第二信号。
  87. 根据权利要求86所述的设备,其特征在于,所述第二信号的调度信息包括第三时间单元偏移量和/或第二时长,所述第三时间单元偏移量用于指示所述设备开始发送所述第二信号的时间单元相对于所述第五信号所在时间单元的的时间单元偏移量,所述第二时长用于指示所述设备发送所述第二信号的持续时长。
  88. 根据权利要求86所述的设备,其特征在于,所述第二信号的调度信息包括第四指示信息,所述第四指示信息用于指示多个预定义时间窗口中的一个时间窗口。
  89. 根据权利要求82或83所述的设备,其特征在于,所述通信单元还用于:
    在第二时间单元集合上发送所述第二信号。
  90. 根据权利要求89所述的设备,其特征在于,所述第二时间单元集合根据预定义信息和/或所述网络设备的指示信息确定。
  91. 根据权利要求90所述的设备,其特征在于,所述网络设备的指示信息包括第五指示信息,所述第五指示信息用于指示多个预定义时间单元集合中的一个。
  92. 根据权利要求82-91中任一项所述的设备,其特征在于,所述第二信号是所述设备以第二发送功率发送的,其中,所述第二发送功率是预定义的,或者是由所述网络设备配置的,或者是由所述设备确定的。
  93. 根据权利要求92所述的设备,其特征在于,所述通信单元还用于:
    接收所述网络设备发送的功率切换指示信号;
    所述设备还包括:
    处理单元,用于根据所述功率切换指示信号,将发送信号所使用的功率从所述第二发送功率切换至第一发送功率,所述第一发送功率是所述设备在上行资源上发送第一信号所采用的发送功率,所述第一信号用于给所述终端设备供能和/或用于所述终端设备进行反向散射通信。
  94. 根据权利要求93所述的设备,其特征在于,所述处理单元具体用于:
    在接收到所述功率切换指示信号的情况下,立即切换至所述第一发送功率;或者
    在接收到所述功率切换指示信号的情况下,在下一时间单元上切换至所述第一发送功率;
    在接收到所述功率切换指示信号的情况下,在接收所述功率切换指示信号的时间单元之后的第一个上行时间单元上切换至所述第一发送功率。
  95. 根据权利要求82-94中任一项所述的设备,其特征在于,所述通信单元还用于:
    根据所述网络设备的控制信号,开始或停止向所述终端设备发送所述第二信号。
  96. 一种网络设备,其特征在于,包括:
    通信单元,用于向第一设备发送调度信号,所述调度信号用于调度或触发所述第一设备向终端设备发送信号,所述信号用于给所述终端设备供能和/或用于所述终端设备进行反向散射通信。
  97. 根据权利要求96所述的网络设备,其特征在于,所述调度信号包括第四信号,所述通信单元还用于:
    向所述第一设备发送第四信号,所述第四信号用于调度或触发所述第一设备发送第一信号,所述第一信号用于给所述终端设备供能和/或用于所述终端设备进行反向散射通信。
  98. 根据权利要求97所述的网络设备,其特征在于,所述第四信号用于调度所述第一设备从可用于上行数据传输的第一个时间单元开始发送所述第一信号;或者
    所述第四信号用于调度所述第一设备在可用于上行数据传输的第一个时间单元之前开始发送所述第一信号;或者
    所述第四信号用于调度所述第一设备在可用于上行数据传输的第一个时间单元之后开始发送所述第一信号。
  99. 根据权利要求97或98所述的网络设备,其特征在于,所述第四信号用于调度所述第一设备在第一时间窗口内发送所述第一信号。
  100. 根据权利要求99所述的网络设备,其特征在于,所述第四信号包括所述第一信号的调度信息,所述第一时间窗口根据所述第一信号的调度信息确定。
  101. 根据权利要求100所述的网络设备,其特征在于,所述第一信号的调度信息包括第二时间单元偏移量和/或第一时长,所述第二时间单元偏移量用于指示所述第一设备开始发送所述第一信号的时间单元相对于所述第四信号所在时间单元的的时间单元偏移量,所述第一时长用于指示所述第一设备发送所述第一信号的持续时长;或者
    所述第一信号的调度信息包括第二指示信息,所述第二指示信息用于指示多个预定义时间窗口中的一个时间窗口。
  102. 根据权利要求97或98所述的网络设备,其特征在于,所述第四信号用于调度所述第一设备在第一时间单元集合上发送所述第一信号。
  103. 根据权利要求102所述的网络设备,其特征在于,所述第四信号包括第三指示信息,所述第三指示信息用于指示多个预定义时间单元集合中的一个。
  104. 根据权利要求97-103中任一项所述的网络设备,其特征在于,所述第四信号包括第六指示 信息,所述第六指示信息用于指示所述第一信号的发送功率。
  105. 根据权利要求96-104中任一项所述的网络设备,其特征在于,所述调度信号包括第五信号,所述通信单元还用于:
    向所述第一设备发送第五信号,所述第五信号用于调度或触发所述第一设备发送第二信号,所述第二信号用于给所述终端设备供能。
  106. 根据权利要求105所述的网络设备,其特征在于,所述第五信号用于调度所述第一设备在第二时间窗口内发送所述第二信号。
  107. 根据权利要求106所述的网络设备,其特征在于,所述第五信号包括所述第二信号的调度信息,所述第二时间窗口根据所述第二信号的调度信息确定。
  108. 根据权利要求107所述的网络设备,其特征在于,所述第二信号的调度信息包括第三时间单元偏移量和/或第二时长,所述第三时间单元偏移量用于指示所述第一设备开始发送所述第二信号的时间单元相对于所述第五信号所在时间单元的的时间单元偏移量,所述第二时长用于指示所述第一设备发送所述第二信号的持续时长;或者
    所述第二信号的调度信息包括第四指示信息,所述第四指示信息用于指示多个预定义时间窗口中的所述第二时间窗口。
  109. 根据权利要求105所述的网络设备,其特征在于,所述第五信号用于调度所述第一设备在第二时间单元集合上发送所述第二信号。
  110. 根据权利要求109所述的网络设备,其特征在于,所述第二时间单元集合根据预定义信息和/或所述网络设备的指示信息确定。
  111. 根据权利要求110所述的网络设备,其特征在于,所述网络设备的指示信息包括第五指示信息,所述第五指示信息用于指示多个预定义时间单元集合中的一个。
  112. 根据权利要求105-111中任一项所述的网络设备,其特征在于,所述第五信号包括第七指示信息,所述第七指示信息用于指示所述第二信号的发送功率。
  113. 根据权利要求96-104中任一项所述的网络设备,其特征在于,所述通信单元还用于:
    在下行资源上发送第二信号,所述第二信号用于给所述终端设备供能。
  114. 根据权利要求96-113中任一项所述的网络设备,其特征在于,所述通信单元还用于:
    向终端设备发送第三信号,所述第三信号用于调度或触发所述终端设备向终端设备发送反向散射信号。
  115. 根据权利要求114所述的网络设备,其特征在于,所述第三信号包括第一指示信息,所述第一指示信息用于指示第一时间单元偏移量,所述第一时间单元偏移量用于指示所述终端设备发送反向散射信号的时间单元相对于所述第三信号所在时间单元的时间单元偏移量。
  116. 根据权利要求96-115中任一项所述的网络设备,其特征在于,所述通信单元还用于:
    向所述第一设备发送功率切换指示信号,其中,所述功率切换指示信号用于指示所述第一设备将信号的发送功率从第二发送功率切换至第一发送功率,其中,所述第一发送功率是所述第一设备在上行资源上发送第一信号的发送功率,所述第二发送功率是所述第一设备在下行资源上发送第二信号的发送功率,所述第一信号用于给所述终端设备供能和/或用于所述终端设备进行反向散射通信,所述第二信号用于给所述终端设备供能。
  117. 一种终端设备,其特征在于,包括:处理器和存储器,该存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,执行如权利要求1至9中任一项所述的方法。
  118. 一种芯片,其特征在于,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行如权利要求1至9中任一项所述的方法。
  119. 一种计算机可读存储介质,其特征在于,用于存储计算机程序,所述计算机程序使得计算机执行如权利要求1至9中任一项所述的方法。
  120. 一种计算机程序产品,其特征在于,包括计算机程序指令,该计算机程序指令使得计算机执行如权利要求1至9中任一项所述的方法。
  121. 一种计算机程序,其特征在于,所述计算机程序使得计算机执行如权利要求1至9中任一项所述的方法。
  122. 一种无线通信的设备,其特征在于,包括:处理器和存储器,该存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,执行如权利要求10至37中任一项所述的方法。
  123. 一种芯片,其特征在于,包括:处理器,用于从存储器中调用并运行计算机程序,使得安 装有所述芯片的设备执行如权利要求10至37中任一项所述的方法。
  124. 一种计算机可读存储介质,其特征在于,用于存储计算机程序,所述计算机程序使得计算机执行如权利要求10至37中任一项所述的方法。
  125. 一种计算机程序产品,其特征在于,包括计算机程序指令,该计算机程序指令使得计算机执行如权利要求10至37中任一项所述的方法。
  126. 一种计算机程序,其特征在于,所述计算机程序使得计算机执行如权利要求10至37中任一项所述的方法。
  127. 一种网络设备,其特征在于,包括:处理器和存储器,该存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,执行如权利要求38至58中任一项所述的方法。
  128. 一种芯片,其特征在于,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行如权利要求38至58中任一项所述的方法。
  129. 一种计算机可读存储介质,其特征在于,用于存储计算机程序,所述计算机程序使得计算机执行如权利要求38至58中任一项所述的方法。
  130. 一种计算机程序产品,其特征在于,包括计算机程序指令,该计算机程序指令使得计算机执行如权利要求38至58中任一项所述的方法。
  131. 一种计算机程序,其特征在于,所述计算机程序使得计算机执行如权利要求38至58中任一项所述的方法。
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