WO2023004748A1 - Procédé de communication sans fil, dispositif terminal et dispositif de réseau - Google Patents

Procédé de communication sans fil, dispositif terminal et dispositif de réseau Download PDF

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Publication number
WO2023004748A1
WO2023004748A1 PCT/CN2021/109595 CN2021109595W WO2023004748A1 WO 2023004748 A1 WO2023004748 A1 WO 2023004748A1 CN 2021109595 W CN2021109595 W CN 2021109595W WO 2023004748 A1 WO2023004748 A1 WO 2023004748A1
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Prior art keywords
terminal device
indication information
communication
state
indicate
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PCT/CN2021/109595
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English (en)
Chinese (zh)
Inventor
崔胜江
邵帅
徐伟杰
张治�
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Oppo广东移动通信有限公司
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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 CN202180096871.6A priority Critical patent/CN117099450A/zh
Priority to PCT/CN2021/109595 priority patent/WO2023004748A1/fr
Publication of WO2023004748A1 publication Critical patent/WO2023004748A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the embodiments of the present application relate to the communication field, and more specifically, to a wireless communication method, a terminal device, and a network device.
  • zero-power communication when the zero-power terminal is far away from the network site, the speed of obtaining and storing energy through energy harvesting is very slow, and the stored energy can only be used by zero-power devices for a certain period of time. Communication, when the stored energy is depleted, the communication between the zero-power device and the network device will be interrupted.
  • the embodiment of the present application provides a wireless communication method, a terminal device, and a network device, which can reduce the impact caused by interruption, such as avoiding the failure of transmission of key information and the meaningless scheduling of the network device when the communication of the terminal device is interrupted, etc. Thereby improving communication performance.
  • the present application provides a wireless communication method, including:
  • the first indication information is used to indicate the energy value of the terminal device and/or the sustainable communication duration; or the first indication information is used to indicate the remaining energy value of the terminal device and/or the sustainable The remaining communication duration is insufficient; or the first indication information is used to indicate that the terminal device interrupts communication; or the first indication information is used to indicate that the energy of the terminal device is sufficient; or the first indication information is used to Indicates the state of the energy value of the terminal device and/or the state of the sustainable communication duration.
  • the present application provides a wireless communication method, including:
  • first indication information where the first indication information is used to indicate the energy value of the terminal device and/or the sustainable communication duration; or the first indication information is used to indicate the remaining energy value of the terminal device and/or the sustainable The remaining communication duration is insufficient; or the first indication information is used to indicate that the terminal device interrupts communication; or the first indication information is used to indicate that the energy of the terminal device is sufficient; or the first indication information is used to Indicating the state of the energy value of the terminal device and/or the state of the sustainable communication duration;
  • the present application provides a wireless communication method, including:
  • the energy value of the terminal device can only maintain backscatter communication within a second time period shorter than the first time period, then send a backscatter signal within the second time period.
  • the present application provides a wireless communication method, including:
  • the backscatter signal sent by the terminal device is detected only within the second time period shorter than the first time period, it is determined that the energy value of the terminal device is insufficient.
  • the present application provides a terminal device configured to execute the method in the first aspect or the third aspect above.
  • the terminal device includes a functional module for executing the method in the first aspect or the third aspect above.
  • the terminal device may include a processing unit configured to perform functions related to information processing.
  • the processing unit may be a processor.
  • the terminal device may include a sending unit and/or a receiving unit.
  • the sending unit is used to perform functions related to sending, and the receiving unit is used to perform functions related to receiving.
  • the sending unit may be a transmitter or transmitter, and the receiving unit may be a receiver or receiver.
  • the terminal device is a communication chip, the sending unit may be an input circuit or interface of the communication chip, and the sending unit may be an output circuit or interface of the communication chip.
  • the present application provides a network device configured to execute the method in the second aspect or the fourth aspect above.
  • the network device includes a functional module for executing the method in the second aspect or the fourth aspect above.
  • the network device may include a processing unit configured to perform functions related to information processing.
  • the processing unit may be a processor.
  • the network device may include a sending unit and/or a receiving unit.
  • the sending unit is used to perform functions related to sending, and the receiving unit is used to perform functions related to receiving.
  • the sending unit may be a transmitter or transmitter, and the receiving unit may be a receiver or receiver.
  • the network device is a communication chip, the receiving unit may be an input circuit or interface of the communication chip, and the sending unit may be an output circuit or interface of the communication chip.
  • the present application provides 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 first aspect or the third aspect above.
  • processors there are one or more processors, and one or more memories.
  • the memory may be integrated with the processor, or the memory may be separated from the processor.
  • the terminal device further includes a transmitter (transmitter) and a receiver (receiver).
  • the present application 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 second aspect or the fourth aspect thereof.
  • processors there are one or more processors, and one or more memories.
  • the memory may be integrated with the processor, or the memory may be separated from the processor.
  • the network device further includes a transmitter (transmitter) and a receiver (receiver).
  • the present application provides a chip configured to implement any one of the foregoing first to fourth aspects or methods 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 chip executes any one of the above first to fourth aspects or various implementations thereof method in .
  • the present application provides a computer-readable storage medium for storing a computer program, and the computer program enables the computer to execute any one of the above-mentioned first to fourth aspects or the method in each implementation manner thereof .
  • the present application provides a computer program product, including computer program instructions, the computer program instructions cause a computer to execute any one of the above-mentioned first to fourth aspects or the method in each implementation manner.
  • the present application provides a computer program, which, when run on a computer, causes the computer to execute any one of the above first to fourth aspects or the method in each implementation manner thereof.
  • the network device can be enabled to obtain the energy value of the terminal device and/or the sustainable communication duration, or the network device can be enabled to obtain the remaining energy value of the terminal device and/or the sustainable
  • the remaining communication duration is not enough, or it can make the network device know that the terminal device has interrupted communication, or it can make the network device know that the energy of the terminal device is sufficient, or it can make the network device obtain the state of the energy value of the terminal device and /or the state of the maintainable communication duration; that is, when the network device schedules the terminal device or communicates with the terminal device based on the first indication information, it is beneficial for the network device to know the communication between the terminal device and the network device Whether and when an interruption will occur, and in turn, it is beneficial for network equipment to take corresponding measures to reduce the impact of communication interruption, such as avoiding the failure of key information transmission and meaningless scheduling when network equipment interrupts communication with terminal equipment etc., thereby improving communication performance.
  • FIG. 1 is a schematic diagram of a communication system provided by an embodiment of the present application.
  • Fig. 2 is a schematic diagram of a zero-power communication system provided by the present application.
  • Fig. 3 is a schematic diagram of the energy harvesting provided by the embodiment of the present application.
  • Fig. 4 is a schematic diagram of backscatter communication provided by the present application.
  • Fig. 5 is a circuit schematic diagram of resistive load modulation provided by an embodiment of the present application.
  • Fig. 6 is a schematic flowchart of a wireless communication method provided by an embodiment of the present application.
  • Fig. 7 is another schematic flowchart of the wireless communication method provided by the embodiment of the present application.
  • FIG. 8 is a schematic block diagram of a terminal device provided by an embodiment of the present application.
  • Fig. 9 is a schematic block diagram of a network device provided by an embodiment of the present application.
  • FIG. 10 is another schematic block diagram of a terminal device provided by an embodiment of the present application.
  • Fig. 11 is another schematic block diagram of a network device provided by an embodiment of the present application.
  • Fig. 12 is a schematic block diagram of a communication device provided by an embodiment of the present application.
  • Fig. 13 is a schematic block diagram of a chip provided by an embodiment of the present application.
  • 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.
  • Embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced long term evolution (LTE-A) system, new wireless (New Radio, NR) system, evolution system of NR system, LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum, NR-U) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), next generation communication system, zero power consumption communication system , cellular Internet of Things, cellular passive Internet of Things or other communication systems, etc.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio
  • the cellular Internet of Things is the development product of the combination of the cellular mobile communication network and the Internet of Things.
  • the cellular passive Internet of Things is also called the passive cellular Internet of Things, which is composed of network devices and passive terminals.
  • passive terminals can communicate with other passive terminals through network devices.
  • the passive terminal can communicate in a device-to-device (D2D) communication manner, and the network device only needs to send a carrier signal, that is, an energy supply signal, to supply energy to the passive terminal.
  • D2D device-to-device
  • 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 embodiment of the present application does not limit the applied frequency spectrum.
  • the embodiments of the present application may be applied to licensed spectrum, and may also be applied to unlicensed spectrum.
  • 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 network equipment may be a device for communicating with mobile equipment, and the network equipment may be an access point (Access Point, AP) in WLAN, GSM or A base station (Base Transceiver Station, BTS) in CDMA, 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 vehicle-mounted devices, wearable devices, and network devices (gNB) in NR networks or network devices in PLMN networks that will evolve in the future.
  • Access Point Access Point
  • BTS Base Transceiver Station
  • NodeB, NB base station
  • Evolutional Node B, eNB or eNodeB evolved base station
  • gNB network devices
  • the network device provides services for the 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.
  • the cell may be a network device (for example, The cell corresponding to the base station) may belong to the macro base station or the base station corresponding to the small cell (Small cell).
  • the small cell here may include: Metro cell, Micro cell, Pico cell 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.
  • a terminal device may also be referred to as a user equipment, an access terminal, a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, Terminal, wireless communication device, user agent or user device, etc.
  • UE User Equipment
  • the terminal device can be a station (STAION, ST) in the 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 processing (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, and next-generation communication systems, such as terminal devices in NR networks or Terminal devices in the future evolution of the Public Land Mobile Network (PLMN) network, or zero-power devices.
  • STAION, ST Session Initiation Protocol
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • 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.
  • a zero-power consumption device may be understood as a device whose power consumption is lower than a preset power consumption. For example, it includes passive terminals and even semi-passive terminals.
  • the zero-power consumption device is a radio frequency identification (Radio Frequency Identification, RFID) tag, which is a technology for realizing non-contact automatic transmission and identification of tag information by means of spatial coupling of radio frequency signals.
  • RFID tags are also called “radio frequency tags” or “electronic tags”.
  • the types of electronic tags can be divided into 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-passive electronic tags also known as semi-active electronic tags, inherit the advantages of passive electronic tags such as small size, light weight, low price, and long service life.
  • the built-in battery When the built-in battery is not accessed by a reader, It only provides power for a few circuits in the chip, and the built-in battery supplies power to the RFID chip only when the reader is accessing, so as to increase the reading and writing distance of the tag and improve the reliability of communication.
  • An RFID system is a wireless communication system.
  • the RFID system is composed of two parts: an electronic tag (TAG) and a reader/writer (Reader/Writer).
  • Electronic tags include coupling components and chips, and 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.
  • Zero-power communication uses energy harvesting and backscatter communication technologies. In order to facilitate understanding of the technical solutions of the embodiments of the present application, related technologies of zero power consumption are described.
  • FIG. 2 is a schematic diagram of a zero-power communication system provided by the present application.
  • the zero-power communication system consists of network equipment and zero-power terminals.
  • the network equipment is used to send wireless power supply signals to zero-power terminals, downlink communication signals and receive backscattered signals from zero-power terminals.
  • a basic zero-power terminal includes an energy harvesting module, a backscatter communication module, and a low-power computing module.
  • the zero-power consumption terminal can also have a memory or a sensor for storing some basic information (such as item identification, etc.) or obtaining sensing data such as ambient temperature and ambient humidity.
  • Zero-power communication can also be called communication based on zero-power terminals.
  • the key technologies of zero-power communication mainly include radio frequency energy harvesting and backscatter communication.
  • FIG. 3 is a schematic diagram of the energy harvesting provided by the embodiment of the present application.
  • the radio frequency energy collection module realizes the collection of space electromagnetic wave energy based on the principle of electromagnetic induction, and then obtains the energy required to drive zero-power terminals, such as driving low-power demodulation and modulation modules, sensors and memory read, etc. Therefore, zero-power terminals do not require traditional batteries.
  • FIG. 4 is a schematic diagram of backscatter communication provided by the present application.
  • the zero-power communication terminal receives the wireless signal sent by the network, modulates the wireless signal, loads the information to be sent, and radiates the modulated signal from the antenna. This information transmission process is called for backscatter communication.
  • Load modulation adjusts and controls the circuit parameters of the oscillation circuit of the zero-power terminal according to the beat of the data flow, so that the magnitude and phase of the impedance of the zero-power device change accordingly, thereby completing the modulation process.
  • the load modulation technology mainly includes resistive load modulation and capacitive load modulation.
  • FIG. 5 is a circuit schematic diagram of resistive load modulation provided by an embodiment of the present application.
  • a resistor is connected in parallel with the load, which is called a load modulation resistor.
  • the resistor is turned on or off based on the control of the binary data flow.
  • Amplitude keying modulation (ASK) that is, the modulation and transmission of the signal is realized by adjusting the amplitude of the backscattered signal of the zero-power terminal.
  • ASK Amplitude keying modulation
  • FSK frequency keying modulation
  • zero-power consumption terminal Since the zero-power consumption terminal performs information modulation on the incoming wave signal by means of load modulation, the backscatter communication process is realized. Therefore, zero-power terminals have significant advantages:
  • the terminal equipment does not actively transmit signals, and realizes backscatter communication by modulating the incoming wave signal.
  • Terminal equipment does not rely on traditional active power amplifier transmitters, and uses low-power computing units at the same time, which greatly reduces hardware complexity.
  • the above-mentioned terminal device may be a zero-power consumption device (such as a passive terminal, or even a semi-passive terminal), and even the terminal device may be a non-zero power consumption device, such as an ordinary terminal, but the ordinary terminal may be in some backscatter communication.
  • a zero-power consumption device such as a passive terminal, or even a semi-passive terminal
  • the terminal device may be a non-zero power consumption device, such as an ordinary terminal, but the ordinary terminal may be in some backscatter communication.
  • the data transmitted by the terminal device may use different forms of codes to represent binary "1" and "0".
  • 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, Miller coding and differential coding. In layman's terms, it is to use different pulse signals to represent 0 and 1.
  • zero-power terminals can be divided into the following types based on the energy sources and usage methods of zero-power terminals:
  • the zero-power terminal does not need a built-in battery.
  • the zero-power terminal When the zero-power terminal is close to a network device (such as a reader of an RFID system), the zero-power terminal is within the near-field range formed by the antenna radiation of the network device. Therefore, the antenna of the zero-power terminal generates an induced current through electromagnetic induction, and the induced current drives the low-power chip circuit of the zero-power terminal. Realize the demodulation of the forward link signal and the signal modulation of the backward link. For the backscatter link, the zero-power terminal uses the backscatter implementation to transmit signals.
  • the passive zero-power terminal does not need a built-in battery to drive it, whether it is a forward link or a reverse link, and is a real zero-power terminal.
  • Passive zero-power terminals do not require batteries, and the RF circuit and baseband circuit are very simple, such as low-noise amplifier (LNA), power amplifier (PA), crystal oscillator, ADC, etc., so it has small size, light weight, and very low price. Cheap, long service life and many other advantages.
  • the semi-passive zero-power terminal itself does not install a conventional battery, but it can use the RF energy harvesting module to collect radio wave energy, and store the collected energy in an energy storage unit (such as a capacitor). After the energy storage unit obtains energy, it can drive the low-power chip circuit of the zero-power terminal. Realize the demodulation of the forward link signal and the signal modulation of the backward link. For the backscatter link, the zero-power terminal uses the backscatter implementation to transmit signals.
  • the semi-passive zero-power terminal does not need a built-in battery to drive either the forward link or the reverse link.
  • the energy stored in the capacitor is used in the work, the energy comes from the energy collected by the energy harvesting module. radio energy, so it is also a true zero-power consumption terminal.
  • Semi-passive zero-power terminals inherit many advantages of passive zero-power terminals, so they have many advantages such as small size, light weight, very cheap price, and long service life.
  • the zero-power terminal used can also be an active zero-power terminal, and this type of terminal can have a built-in battery.
  • the battery is used to drive the low-power chip circuit of the zero-power terminal. Realize the demodulation of the forward link signal and the signal modulation of the backward link. But for the backscatter link, the zero-power terminal uses the backscatter implementation to transmit the signal. Therefore, the zero power consumption of this type of terminal is mainly reflected in the fact that the signal transmission of the reverse link does not require the power of the terminal itself, but uses backscattering.
  • the active zero-power terminal supplies power to the RFID chip through a built-in battery, so as to increase the reading and writing distance of the zero-power terminal and improve the reliability of communication. Therefore, it can be applied in some scenarios that require relatively high communication distance and read delay.
  • the zero-power consumption terminal may perform energy collection based on the energy supply signal.
  • the energy supply signal may be a base station, a smart phone, an intelligent gateway, a charging station, a micro base station, and the like.
  • the energy supply signal may be a low-frequency, medium-frequency, high-frequency signal, etc.
  • the energy supply signal may be a sine wave, a square wave, a triangle wave, a pulse, a rectangular wave, and the like.
  • the energy supply signal may be a continuous wave or a discontinuous wave (that is, a certain time interruption is allowed).
  • the energy supply signal may be a certain signal specified in the 3GPP standard.
  • SRS PUSCH
  • PRACH Physical Uplink Control Channel
  • PUCCH Physical Downlink Control Channel
  • PDCCH Physical Downlink Control Channel
  • PDSCH Physical Downlink Control Channel
  • PBCH Physical Broadcast Control Channel
  • the carrier signal sent by the foregoing network device can also be used to provide energy to the zero-power consumption device, the carrier signal may also be referred to as an energy supply signal.
  • the zero-power terminal can perform backscatter communication based on the received trigger signal.
  • the trigger signal may be used to schedule or trigger backscatter communication of the zero-power terminal.
  • the trigger signal carries scheduling information of the network device, or the trigger signal is a scheduling signaling or a scheduling signal sent by the network device.
  • the trigger signal can be a base station, a smart phone, an intelligent gateway, etc.;
  • the trigger signal may be a low-frequency, medium-frequency, high-frequency signal, etc.
  • the trigger signal may be a sine wave, a square wave, a triangle wave, a pulse, a rectangular wave, and the like.
  • the trigger signal may be a continuous wave or a discontinuous wave (that is, a certain time interruption is allowed).
  • the trigger signal may be a certain signal specified in the 3GPP standard.
  • SRS PUSCH, PRACH, PUCCH, PDCCH, PDSCH, PBCH, etc.; it may also be a new signal.
  • the energy supply signal and the trigger signal may be one signal, or two independent signals, which are not specifically limited in this application.
  • passive IoT devices can be based on existing zero-power consumption devices, such as Radio Frequency Identification (RFID) technology, and extended on this basis to be suitable for cellular IoT.
  • RFID Radio Frequency Identification
  • a technical bottleneck faced by passive zero-power communication technology is the limited coverage distance of the forward link.
  • the signal strength of the signal is based on the existing implementation process.
  • a zero-power terminal needs to consume 10uw (microwatt) of power to drive a low-power circuit. This means that the signal power reaching the zero power terminal needs to be at least -20dBm.
  • the transmission power of network equipment should generally not be too large. For example, in the ISM frequency band where RFID works, the maximum transmission power is 30dBm. Therefore, considering the radio propagation loss in space, the transmission distance of the passive zero-power terminal is generally in the range of 10m to tens of meters.
  • the zero-power terminal with the addition of an energy storage module has the potential to significantly extend the communication distance, because the zero-power terminal can use a radio frequency (RF) energy harvesting module to collect radio waves, so it can continuously obtain radio energy and stored in the energy storage unit. After the energy storage unit obtains enough energy, it can drive the low-power circuit to work, and is used for signal demodulation of the forward link and signal modulation of the reverse link.
  • the energy harvesting module can perform energy harvesting and input electric energy to the energy storage unit when the received radio signal strength is not lower than -30dBm. Therefore, the coverage of the forward link of the zero-power terminal with the energy storage module depends on the RF energy harvesting threshold (such as -30dBm). Compared with the passive zero-power terminal, the received radio signal strength is relaxed from -20dBm to - 30dBm, so a link budget gain of 10dB can be obtained, so the downlink coverage can be improved by more than 3 times.
  • the zero-power terminal with the addition of an energy storage module also faces the problem of a decrease in charging efficiency.
  • the energy that can be harvested and stored by the energy harvesting module is greatly reduced.
  • the received signal strength is -30dBm, that is, 1 microwatt hour
  • the energy that can be collected and stored is far less than 1 microwatt (the efficiency of energy collection is greatly reduced).
  • the low-power circuit of the zero-power terminal may need to consume an average power of 10uw.
  • the speed of obtaining and storing energy through energy harvesting is very slow, and the stored energy can only be used by the zero-power consumption device to communicate within a certain period of time.
  • the communication between the zero-power device and the network device will be interrupted.
  • Zero-power devices at the edge of zero-power communication will cause intermittent communication interruptions due to insufficient power. In order to reduce the impact of intermittent communication interruptions, corresponding processing mechanisms need to be introduced.
  • the present application provides a wireless communication method, terminal equipment, and network equipment, which can reduce the impact caused by interruptions, such as avoiding failures in the transmission of key information and meaningless scheduling by network equipment when the communication of terminal equipment is interrupted, etc. Thereby improving communication performance.
  • Fig. 6 shows a schematic flowchart of a wireless communication method 200 according to an embodiment of the present application, and the method 200 may be interactively executed by a terminal device and a network device.
  • the terminal device shown in FIG. 6 may be the terminal device 120 shown in FIG. 1 , such as a zero-power consumption terminal.
  • the network device shown in FIG. 6 may be the network device 110 shown in FIG. 1 .
  • the method 200 may include part or all of the following:
  • S210 Send first indication information; the first indication information is used to indicate the energy value of the terminal device and/or the sustainable communication duration; or the first indication information is used to indicate the remaining energy value of the terminal device and/or The remaining sustainable communication duration is insufficient; or the first indication information is used to indicate that the terminal device interrupts communication; or the first indication information is used to indicate that the energy of the terminal device is sufficient; or the first indication information It is used to indicate the state of the energy value of the terminal device and/or the state of the maintainable communication duration.
  • the network device can obtain the energy value of the terminal device and/or the sustainable communication duration, or enable the network device to obtain the remaining energy value of the terminal device and/or the sustainable
  • the remaining communication duration is not enough, or it can make the network device know that the terminal device has interrupted communication, or it can make the network device know that the energy of the terminal device is sufficient, or it can make the network device obtain the state of the energy value of the terminal device and /or the state of the maintainable communication duration; that is, when the network device schedules the terminal device or communicates with the terminal device based on the first indication information, it is beneficial for the network device to know the communication between the terminal device and the network device Whether and when an interruption will occur, and in turn, it is beneficial for network equipment to take corresponding measures to reduce the impact of communication interruption, such as avoiding the failure of key information transmission and meaningless scheduling when network equipment interrupts communication with terminal equipment etc., thereby improving communication performance.
  • the energy supply signal for energy supply and the trigger signal for information transmission may be two signals or one signal.
  • the energy supply signal and the trigger signal are one signal, while in the cellular passive Internet of Things technology, the energy supply signal and the trigger signal can be two independent signals, the two Signals may not be sent in one frequency band; network devices continuously or intermittently send energy supply signals in one frequency band, zero-power consumption devices collect energy, and after zero-power consumption devices obtain energy, they can perform corresponding communication processes, such as measurement, channel/ Reception of signals, transmission of channels/signals, etc.; for example, backscatter communication on another frequency band.
  • zero-power devices are different from traditional active devices. When a zero-power device communicates, it needs to collect energy based on the energy supply signal before it can communicate.
  • the term "indication" involved 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.
  • A may be the first indication information
  • B may be information indicated by the first indication information.
  • the first indication information may be multiple bits or multiple bit sequences.
  • the first indication information may be 3 bits.
  • the first indication information is a bit sequence of the first length, it is used to indicate the energy value of the terminal equipment; when the first indication information is a bit sequence of the second length, it is used to indicate that the terminal equipment can maintain
  • the first indication information is a bit sequence of the third length, it is used to indicate the remaining energy value of the terminal device; when the first indication information is a bit sequence of the fourth length, it is used to indicate the remaining energy value of the terminal device The remaining communication duration is insufficient;
  • the first indication information is a bit sequence of the fifth length, it is used to instruct the terminal device to interrupt communication; when the first indication information is a bit sequence of the sixth length, it is used to indicate the terminal device The energy is sufficient; when the first indication information is a bit sequence of the seventh length, it is used to indicate the state of the energy value of the terminal device; when the first indication information is a bit sequence of the eighth length, it can be
  • the terminal device can always work based on the energy supply signal, that is, there is no energy shortage problem, it can also report relevant energy information, which is not specifically limited in this application.
  • the first indication information is used to indicate that the terminal device has sufficient energy, and can even maintain a standby or working state without a power supply signal for a period of time; at this time, the network device can interrupt the power supply signal within a corresponding time.
  • the first indication information is used to indicate the energy value of the terminal device and/or the sustainable communication duration, including at least one of the following:
  • the first indication information is used to indicate the total energy value and/or the total sustainable communication duration after the terminal device completes energy collection or charging; or
  • the first indication information is used to indicate the remaining energy value and/or the remaining maintainable communication duration of the terminal device.
  • the terminal device can report the total energy value and/or the total communication time that can be maintained to the network device after energy collection or charging is completed, and can also report the remaining energy value and/or the available communication time to the network device after working for a period of time. The remaining communication time to maintain.
  • the first indication information is used to indicate the remaining energy value and/or maintainable remaining communication duration of the terminal device, including at least one of the following:
  • the first indication information is used to indicate that the remaining energy value of the terminal device is less than or equal to a first threshold
  • the first indication information is used to indicate that the remaining communication duration that the terminal device can maintain is less than or equal to the second threshold.
  • the first indication information when the first indication information indicates the remaining energy value of the terminal device and/or the remaining sustainable communication duration, it may indicate that the remaining energy value is less than or equal to the first threshold, or may indicate that the terminal device can maintain The remaining communication duration of is less than or equal to the second threshold.
  • the first indication information may indicate the energy value range in which the remaining energy value of the terminal device is located and/or the communication duration range in which the remaining sustainable communication duration is located.
  • the present application does not limit specific values of the first threshold and the second threshold.
  • the first threshold may be a percentage of the total energy value of the terminal device, and for another example, the second threshold may be in minutes.
  • the above numerical values are only examples of the present application, and should not be construed as limiting the present application.
  • the sustainable communication duration is an absolute duration or a relative duration.
  • the absolute duration may be represented by an end time.
  • the relative duration is represented by the number of time units.
  • the time unit may be a symbol, a time slot, a subframe, a frame or other time units, or a time unit newly defined in zero-power communication.
  • the first indication information is used to indicate that the remaining energy value of the terminal device and/or the remaining sustainable communication duration is insufficient, including at least one of the following:
  • the first indication information is used to indicate that the remaining energy value of the terminal device is less than or equal to a third threshold
  • the first indication information is used to indicate that the remaining communication duration that the terminal device can maintain is less than or equal to a fourth threshold
  • the first indication information is used to indicate that the energy value of the terminal device is not enough to support communication in the next time unit;
  • the first indication information is used to indicate that the energy value of the terminal device is not enough to support the transmission of the next data packet.
  • the first indication information is used to indicate that the remaining energy value of the terminal device and/or the remaining sustainable communication duration are insufficient.
  • the terminal device may be indicated by indicating that the remaining energy value of the terminal device is less than or equal to an energy value range, and/or by indicating that the remaining communication duration that the terminal device can maintain is less than or equal to a communication duration range. The remaining energy value of the terminal device and/or the remaining communication duration that can be maintained is insufficient.
  • the third threshold is smaller than the first threshold mentioned above.
  • the fourth threshold is smaller than the second threshold mentioned above.
  • the third threshold may be 5% or 2% of the total energy value of the terminal device, and for another example, the fourth threshold may be 5 minutes or 2 minutes.
  • the above numerical values are only examples of the present application, and should not be construed as limiting the present application.
  • the first indication information is used to instruct the terminal device to interrupt communication, including: the first indication information is used to indicate that the terminal device is carrying the first indication information in the backscatter Communication is interrupted after signal transmission is complete.
  • the first indication information may be specifically used to indicate when the terminal device interrupts communication or approximately when it interrupts communication, which is not specifically limited in this embodiment of the present application.
  • the first indication information is used to indicate the total energy value and/or the total sustainable communication duration after the terminal device completes energy harvesting or charging; or the first indication information is used to indicate The state of the energy value of the terminal device and/or the state of the maintainable communication duration; wherein, the S210 may include:
  • the terminal device may report the total energy value of the terminal device and/or the total duration of communication that can be maintained by actively reporting, or the terminal device may report the status and status of the energy value of the terminal device by actively reporting /or the state of the sustainable communication duration,
  • the first indication information is sent to the network device.
  • the terminal device sends the first indication information to the network device when the terminal device completes energy collection or charging but does not receive a trigger signal.
  • the "active reporting" involved in this application can refer to any reporting before the connection between the terminal device and the network device is established, it can also be a report at any time after energy collection is completed and no trigger signal is received, or it can be reported at any time Report at any time after charging is completed and no trigger signal is received.
  • the first indication information is used to indicate the energy value of the terminal device and/or the sustainable communication duration; or the first indication information is used to indicate the state of the energy value of the terminal device and/or Or the state of the maintainable communication duration; wherein, the S210 may include:
  • the terminal device may report the energy value of the terminal device and/or the sustainable communication duration based on the scheduling of the network device, or report the status of the energy value of the terminal device and/or the sustainable communication duration based on the scheduling of the network device. The status of the communication duration.
  • the first indication information is sent to the network device.
  • the terminal device completes energy collection or charging and receives a trigger signal
  • the first indication information is sent to the network device.
  • the "scheduled transmission based on network equipment" involved in this application may refer to any report after the terminal equipment establishes a connection with the network equipment, or report at any time after energy collection is completed and a trigger signal is received, or It can be reported at any time after the charging is completed and the trigger signal is received.
  • receiving a trigger signal sent by the network device sending a backscatter signal based on the scheduling of the trigger signal, and the first indication information is carried in the backscatter signal scheduled by the trigger signal.
  • the first indication information is carried in the backscatter signal sent for the first time of the trigger signal scheduling; or the first indication information is carried in the first time unit of the trigger signal scheduling in the backscattered signal.
  • the first time unit is predefined, or the first time unit is indicated by the network device through the trigger signal.
  • the terminal device may report the first indication information to the network device after receiving the trigger signal for scheduling the terminal device to send the backscatter signal.
  • the first indication information may be carried in The backscatter signal is scheduled based on the trigger signal. That is to say, the "scheduling of network devices" referred to in this application may refer to that the network device schedules the terminal device to send backscatter signals or perform backscatter communication by sending a trigger signal.
  • the present application does not limit the specific carrying position of the first indication information in the backscatter signal and which backscatter signal is specifically used to carry the first indication information.
  • the first time unit may be predefined or indicated by the network device.
  • pre-defined can be pre-saved in the device (for example, including terminal devices and network devices) by corresponding codes, tables or other methods that can be used to indicate related information implementation, and the present application does not limit the specific implementation manner.
  • 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 to future communication systems, and this application does not limit this .
  • the method 200 may also include:
  • the second indication information is used to indicate whether the network device has received the first indication information reported by the terminal device.
  • the terminal device can learn whether the network device has successfully received the sent first indication information by receiving the second indication information.
  • indication involved 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.
  • A may be the second indication information, and B may be information indicated by the second indication information.
  • the second indication information is used to indicate that the network device has not received the first indication information reported by the terminal device; the method 200 may further include: sending third indication information based on the scheduling of the network device, The third indication information is used to indicate the remaining energy value and/or the remaining sustainable communication duration of the terminal device.
  • the network device may use the second indication information to inform the terminal device that it has not received the first indication information.
  • the terminal device may The third indication information is sent according to the schedule, so as to inform the terminal device of the remaining energy value and/or the remaining communication duration that can be maintained.
  • indication involved 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.
  • A may be the third indication information, and B may be information indicated by the third indication information.
  • the communication duration indicated by the first indication information is longer than the communication duration indicated by the third indication information; and/or, the energy value indicated by the first indication information is greater than the energy indicated by the third indication information value.
  • the communication duration indicated by the first indication information is longer than the communication duration indicated by the third indication information and/or, the energy value indicated by the first indication information is greater than the energy value indicated by the third indication information.
  • the second indication information is carried in an energy supply signal and/or a trigger signal.
  • the first indication information is used to indicate the remaining energy value and/or maintainable remaining communication duration of the terminal device; wherein, the S210 may include:
  • the first indication information is sent.
  • the terminal device may trigger the terminal device to report the first indication information through the change of the remaining energy value and/or the remaining sustainable communication duration, so as to indicate the remaining energy value and/or the sustainable remaining communication time of the terminal device. remaining communication time.
  • the terminal device may also be triggered to report the first indication information in other manners, for example, a network device indicates to report the first indication information.
  • the first indication information is used to indicate that the energy value of the terminal device is insufficient, or the first indication information is used to indicate that the terminal device interrupts communication; wherein, the S210 may include:
  • the terminal device If the terminal device satisfies at least one of the following, send the first indication information:
  • the remaining energy value of the terminal device is less than or equal to a third threshold
  • the terminal device may trigger the terminal device to report the first indication information to indicate that the energy value of the terminal device is insufficient, or indicate that the terminal device Communication is interrupted.
  • the terminal device may also be triggered to report the first indication information in other manners, for example, a network device indicates to report the first indication information.
  • the first indication information is sent separately.
  • the first indication information is carried in a first position of a data packet, and the data packet includes the first indication information and other information.
  • the first position includes at least one of the following positions of the data packet: a head position, a tail position or a middle position.
  • the first location is a preset location, or the first location is a location indicated by a network device.
  • the "preset” mentioned in the embodiments of this application can be stored in the device (for example, including terminal devices and network devices) in advance corresponding codes, tables or other methods that can be used to indicate related information implementation, and the present application does not limit the specific implementation manner.
  • a preset may refer to what is defined in an agreement.
  • 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 to future communication systems, and this application does not limit this .
  • the first location may be a location indicated by a trigger signal sent by the network device.
  • the method 200 may also include:
  • a state or type of the terminal device is determined.
  • the first indication information is used to indicate the energy value of the terminal device and/or the sustainable communication duration; or the first indication information is used to indicate that the energy value of the terminal device is insufficient; or the second A piece of indication information is used to indicate that the terminal device interrupts communication; or the first indication information is used to indicate the state of the energy value of the terminal device and/or the state of the sustainable communication duration; the method 200 may also include : If the state of the terminal device is the first state or the type of the terminal device is the first type, determine to send the first indication information.
  • the terminal device may report the first indication information to the network device, and at this time, the first indication The information is used to indicate the energy value of the terminal device and/or the sustainable communication duration; or the first indication information is used to indicate that the energy value of the terminal device is insufficient; or the first indication information is used to indicate that the terminal device is interrupted Communication; or the first indication information is used to indicate the state of the energy value of the terminal device and/or the state of the sustainable communication duration.
  • the first indication information is used to indicate the energy value of the terminal device and/or the sustainable communication duration , or the first indication information is used to indicate that the energy value of the terminal device is insufficient, or the first indication information is used to indicate that the terminal device interrupts communication, or the first indication information is used to indicate that the terminal device The state of the energy value of the device and/or the state of the sustainable communication duration; if the state of the terminal device is the second state or the type of the terminal device is the second type, the first indication information is used to indicate The energy of the terminal device is sufficient, or the first indication information is used to indicate that the state of the energy value of the terminal device and/or the state of the sustainable communication duration is a sufficient state or the state of allowing interruption of the energy supply signal is sufficient The state or the length of time expressed as a signal that allows interruption of the power supply.
  • the terminal device may report the first indication information to the network device, and at this time, the first indication information It is used to indicate the energy value of the terminal device and/or the sustainable communication duration; or the first indication information is used to indicate that the energy value of the terminal device is insufficient; or the first indication information is used to indicate that the terminal device interrupts communication ; or the first indication information is used to indicate the state of the energy value of the terminal device and/or the state of the sustainable communication duration. If the state of the terminal device is the second state or the type of the terminal device is the second type, the terminal device may also report the first indication information to the network device, and at this time, the first indication information is used In order to indicate that the energy of the terminal device is sufficient.
  • the first state refers to a state in which the terminal device can only maintain backscatter communication for a period of time after performing energy harvesting on the received energy supply signal; and/or, the first type refers to Based on the type of device that can only maintain the terminal device for a period of time for backscatter communication after energy harvesting is performed on the received energy supply signal.
  • the second state refers to a state in which the terminal device can maintain continuous backscatter communication based on energy harvesting of the received energy supply signal
  • the second type refers to a state based on the received energy supply signal.
  • first state and the second state may also be defined in other ways, which is not specifically limited in the present application.
  • the first state may be a state of backscatter communication where the distance from the network device is greater than the critical distance, and the second state may be that the distance from the network device is less than or equal to the critical distance
  • the state of the backscatter communication may be a state of backscatter communication in which the strength of the received power supply signal is less than or equal to the critical strength, and the second state may refer to the strength of the power supply signal received by the terminal device is greater than the specified strength.
  • the first type and the second type may also be defined in other ways, which is not limited in this application.
  • the status or type of the terminal device is determined based on the strength of the first signal received by the terminal device.
  • the strength of the first signal is less than or equal to a fifth threshold, determine that the state of the terminal device is the first state or determine that the type of the terminal device is the first type; and/or, if the The strength of the first signal is greater than or equal to the fifth threshold, and the state of the terminal device is determined to be the second state or the type of the terminal device is determined to be the second type.
  • the first signal may be an energy supply signal and/or a trigger signal.
  • the first signal as an energy supply signal as an example
  • the smaller the strength of the first signal the farther the terminal device is from the network device.
  • the state of the terminal device is the first state or the type of the terminal device is the first type; similarly, the stronger the strength of the first signal Larger, it means that the terminal device is closer to the network device.
  • the terminal device can be maintained for continuous backscatter communication, that is, the state of the terminal device is the second The status or type of the terminal device is the second type.
  • the state or type of the terminal device is determined based on the length of time taken by the terminal device to complete energy collection or charging.
  • the time length is greater than or equal to the sixth threshold, determine that the state of the terminal device is the first state or determine that the type of the terminal device is the first type; and/or, if the time length is less than or equal to the sixth threshold, determine that the state of the terminal device is the second state or determine that the type of the terminal device is the second type.
  • the terminal device can only maintain backscatter communication for a period of time. That is, the state of the terminal device is the first state or the type of the terminal device is the first type; similarly, the shorter the time length, the closer the terminal device is to the network device.
  • the terminal device can be maintained to perform continuous backscatter communication, that is, the state of the terminal device is the second state or the type of the terminal device is the second type.
  • the state of the energy value includes at least one state corresponding to at least one energy value range; and/or, the state of the communication duration includes at least one state corresponding to at least one communication duration range.
  • different states are distinguished based on energy thresholds (eg, percentages) or communicable duration thresholds.
  • the status of the energy value may be used to indicate the energy value range of the energy value of the terminal device
  • the status of the communication duration may be used to indicate the communication duration range of the remaining communication duration that the terminal device can maintain.
  • the embodiment of the present application does not limit the specific quantity and specific range of the at least one energy value range and the at least one communication duration range.
  • the at least one energy value range may correspond to multiple energy levels
  • the at least one communication duration range may correspond to at least one communication duration level.
  • the state of the energy value may include a state of sufficient energy, a state of medium energy, and a state of insufficient energy
  • the state of the communication duration may include a state of sufficient communication duration, a state of medium communication duration, and a state of insufficient communication duration, etc. .
  • the method 200 is described above from the perspective of a terminal device with reference to FIG. 6 , and the method 200 is described below from the perspective of a network device with reference to FIG. 6 .
  • the method 200 includes:
  • S210. Receive first indication information, where the first indication information is used to indicate the energy value of the terminal device and/or the sustainable communication duration; or the first indication information is used to indicate the remaining energy value of the terminal device and/or The remaining sustainable communication duration is insufficient; or the first indication information is used to indicate that the terminal device interrupts communication; or the first indication information is used to indicate that the energy of the terminal device is sufficient; or the first indication information Used to indicate the state of the energy value of the terminal device and/or the state of the sustainable communication duration;
  • the network device can obtain the energy value of the terminal device and/or the sustainable communication duration, or enable the network device to obtain the remaining energy value of the terminal device and/or the sustainable
  • the remaining communication duration is not enough, or it can make the network device know that the terminal device has interrupted communication, or it can make the network device know that the energy of the terminal device is sufficient, or it can make the network device obtain the state of the energy value of the terminal device and /or the state of the maintainable communication duration; that is, when the network device schedules the terminal device or communicates with the terminal device based on the first indication information, it is beneficial for the network device to know the communication between the terminal device and the network device Whether and when an interruption will occur, and in turn, it is beneficial for network equipment to take corresponding measures to reduce the impact of communication interruption, such as avoiding the failure of key information transmission and meaningless scheduling when network equipment interrupts communication with terminal equipment etc., thereby improving communication performance.
  • the first indication information is used to indicate the energy value of the terminal device and/or the sustainable communication duration; wherein, the S220 may include:
  • the terminal device is scheduled within the communication duration determined based on the energy value indicated by the first indication information.
  • the network device may control the scheduling of the terminal device before the energy value and/or the sustainable communication duration indicated by the first indication information is exhausted.
  • the first indication information is used to indicate that the remaining energy value of the terminal device and/or the remaining sustainable communication duration is insufficient; or the first indication information is used to indicate that the terminal device interrupts communication; wherein , the S220 may include:
  • the network The device may stop scheduling the terminal device.
  • the method 200 may also include:
  • the network device may report the total energy value and/or the total sustainable communication duration of the terminal device determined based on the first indication information to the core network device or other network devices.
  • the first indication information is used to indicate the total energy value and/or the total sustainable communication duration after the terminal device completes energy harvesting or charging; at this time, the network device may send the first indication The energy value indicated by the information is determined as the total energy value; and/or, the network device may determine the communication duration indicated by the first indication information as the total communication duration.
  • the total energy indicated by the first indication information is the total energy reported by the network device
  • the total communication duration indicated by the first indication information that the terminal device can maintain is the total energy of the terminal device reported by the network device The total communication time that can be maintained.
  • the first indication information is used to indicate the energy value of the terminal device and/or the sustainable communication duration; or the first indication information is used to indicate that the terminal device interrupts communication; at this time, the network device may Determine the total energy value based on the energy value indicated by the first indication information and the communication duration of the terminal device; and/or, the network device may based on the communication duration indicated by the first indication information and the terminal device The communication duration of the device is used to determine the total communication duration.
  • the duration indicated by the first indication information may be greater than or equal to 0; or the first indication The information is used to instruct the terminal device to interrupt communication, that is, the duration indicated by the first indication information is 0, and at this time, the network device may directly determine the total communication duration from the communication duration of the terminal device.
  • the network device determines the sum of the energy indicated by the first indication information and the energy consumed by the terminal calculated by the network device as the total energy of the terminal device, or the network device determines the sum of the energy indicated by the first indication information
  • the indicated duration and the sum of the duration of communication with the terminal device and the network device are determined as the total communication duration that the terminal device can maintain.
  • the first indication information is used to indicate the state of the energy value of the terminal device and/or the state of the sustainable communication duration; based on the state of the energy value indicated by the first indication information and the state of the terminal device Determine the total energy value based on the communication duration of the device; and/or determine the total communication duration based on the status of the communication duration indicated by the first indication information and the communication duration of the terminal device.
  • the network device determines the remaining energy value of the terminal device based on the state of the energy value indicated by the first indication information, and compares the remaining energy value of the terminal device with the energy consumed by the terminal calculated by the network device The sum is determined as the total energy of the terminal device, or, the network device determines the remaining communication time that the terminal device can maintain based on the state of the communication time that the terminal device can maintain indicated by the first indication information, and The determined remaining communication duration and the sum of the communication durations with the terminal device and the network device are determined as the total communication duration that the terminal device can maintain.
  • the first indication information is used to indicate the energy value of the terminal device and/or the sustainable communication duration, including at least one of the following:
  • the first indication information is used to indicate the total energy value and/or the total sustainable communication duration after the terminal device completes energy collection or charging; or
  • the first indication information is used to indicate the remaining energy value and/or the remaining maintainable communication duration of the terminal device.
  • the first indication information is used to indicate the remaining energy value and/or maintainable remaining communication duration of the terminal device, including at least one of the following:
  • the first indication information is used to indicate that the remaining energy value of the terminal device is less than or equal to a first threshold
  • the first indication information is used to indicate that the remaining communication duration that the terminal device can maintain is less than or equal to the second threshold.
  • the sustainable communication duration is an absolute duration or a relative duration.
  • the relative duration is represented by the number of time units.
  • the first indication information is used to indicate that the remaining energy value of the terminal device and/or the remaining sustainable communication duration is insufficient, including at least one of the following:
  • the first indication information is used to indicate that the remaining energy value of the terminal device is less than or equal to a third threshold
  • the first indication information is used to indicate that the remaining communication duration that the terminal device can maintain is less than or equal to a fourth threshold
  • the first indication information is used to indicate that the energy value of the terminal device is not enough to support communication in the next time unit;
  • the first indication information is used to indicate that the energy value of the terminal device is not enough to support the transmission of the next data packet.
  • the first indication information is used to instruct the terminal device to interrupt communication, including: the first indication information is used to indicate that the terminal device is carrying the first indication information in the backscatter Communication is interrupted after signal transmission is complete.
  • the first indication information is used to indicate the total energy value and/or the total sustainable communication duration after the terminal device completes energy harvesting or charging; or the first indication information is used to indicate The state of the energy value of the terminal device and/or the state of the maintainable communication duration; wherein, the S210 may include:
  • the terminal device before the terminal device establishes a connection with the network device, receiving the first indication information sent by the terminal device; or receiving the first indication information actively reported by the terminal device without sending a trigger signal.
  • the first instruction message before the terminal device establishes a connection with the network device, receiving the first indication information sent by the terminal device; or receiving the first indication information actively reported by the terminal device without sending a trigger signal.
  • the first indication information is used to indicate the energy value of the terminal device and/or the sustainable communication duration; or the first indication information is used to indicate the state of the energy value of the terminal device and/or Or the state of the maintainable communication duration; wherein, the S210 may include:
  • the first indication information is received based on the scheduling of the terminal device by the network device.
  • the terminal device After the terminal device establishes a connection with the network device, receiving the first indication information sent by the terminal device; or sending the first indication information to the network device when a trigger signal has been sent .
  • a trigger signal is sent to the terminal device; a backscatter signal is received based on the scheduling of the trigger signal, and the first indication information is carried in the backscatter signal scheduled by the trigger signal.
  • the first indication information is carried in the backscatter signal sent for the first time of the trigger signal scheduling; or the first indication information is carried in the first time unit of the trigger signal scheduling in the backscattered signal.
  • the first time unit is predefined, or the first time unit is indicated by the network device through the trigger signal.
  • pre-defined can be pre-saved in the device (for example, including terminal devices and network devices) by corresponding codes, tables or other methods that can be used to indicate related information implementation, and the present application does not limit the specific implementation manner.
  • 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 to future communication systems, and this application does not limit this .
  • the method 200 may also include:
  • Sending second indication information where the second indication information is used to indicate whether the network device has received the first indication information reported by the terminal device.
  • the second indication information is used to indicate that the network device has not received the first indication information reported by the terminal device; the method 200 may further include:
  • the third indication information is received based on the scheduling of the network device, where the third indication information is used to indicate the remaining energy value and/or the remaining maintainable communication duration of the terminal device.
  • the communication duration indicated by the first indication information is longer than the communication duration indicated by the third indication information; and/or, the energy value indicated by the first indication information is greater than the energy indicated by the third indication information value.
  • the second indication information is carried in an energy supply signal and/or a trigger signal.
  • the first indication information is sent separately.
  • the first indication information is carried in a first position of a data packet, and the data packet includes the first indication information and other information.
  • the first position includes at least one of the following positions of the data packet: a head position, a tail position or a middle position.
  • the first location is a preset location, or the first location is a location indicated by a network device.
  • the third indication information is sent separately.
  • the third indication information is carried in the second position of the data packet, and the data packet includes the third indication information and other information.
  • the second position includes at least one of the following positions of the data packet: a head position, a tail position or a middle position.
  • the first position and the second position are the same or different.
  • both the first position and the second position are head positions.
  • the first position is the head position
  • the second position is the tail position.
  • the second location is a preset location, or the second location is a location indicated by a network device.
  • the first indication information is used to indicate the energy value of the terminal device and/or the sustainable communication duration; or the first indication information is used to indicate that the energy value of the terminal device is insufficient; or the second A piece of indication information is used to indicate that the terminal device interrupts communication; or the first indication information is used to indicate the state of the energy value of the terminal device and/or the state of the sustainable communication duration; the method 200 may also include :
  • the network device receives the first indication information, and at this time, the first indication information is used to indicate The energy value of the terminal device and/or the sustainable communication duration; or the first indication information is used to indicate that the energy value of the terminal device is insufficient; or the first indication information is used to indicate that the terminal device interrupts communication; or the The first indication information is used to indicate the state of the energy value of the terminal device and/or the state of the sustainable communication duration.
  • the state or type of the terminal device is determined; if the state of the terminal device is the first state or the type of the terminal device is the first type, it is determined to send to the core network device or the Other network devices report the total energy value and/or the total communication duration.
  • the network device sends a message to the core network The device or the other network device reports the total energy value and/or the total communication duration.
  • the status or type of the terminal device is determined based on the strength of the second signal received by the network device.
  • the strength of the second signal is less than or equal to the seventh threshold, determine that the state of the terminal device is the first state or determine that the type of the terminal device is the first type; and/or, if the The strength of the second signal is greater than or equal to the seventh threshold, and the state of the terminal device is determined to be the second state or the type of the terminal device is determined to be the second type.
  • the second signal may be a backscatter signal.
  • the strength of the power supply signal received by the terminal device is smaller.
  • the terminal device can only be maintained for a period of backscatter communication, that is, the state of the terminal device is the first state or the type of the terminal device is the first type; similarly, the first The greater the strength of a signal, the closer the terminal device is to the network device.
  • the strength of the power supply signal received by the terminal device is greater.
  • the terminal device may be maintained to perform continuous backscatter communication, that is, the state of the terminal device is the second state or the type of the terminal device is the second type.
  • the first indication information is used to indicate the energy value of the terminal device and/or the sustainable communication duration, or the first indication information is used to indicate that the energy value of the terminal device is insufficient, or the first indication information is used to indicate that the terminal device interrupts communication, or the first indication information is used to indicate the The state of the energy value of the terminal device and/or the state of the maintainable communication duration; if the state of the terminal device is the second state or the type of the terminal device is the second type, the first indication information is used To indicate that the energy of the terminal device is sufficient, or the first indication information is used to indicate that the state of the energy value of the terminal device and/or the state of the sustainable communication duration is a sufficient state or indicates that the power supply signal is allowed to be interrupted duration.
  • the first state refers to a state in which the terminal device can only maintain backscatter communication for a period of time after performing energy harvesting on the received energy supply signal; and/or, the first state
  • the type refers to a device type that can only maintain backscatter communication of the terminal device for a period of time after energy harvesting is performed on the received power supply signal.
  • the terminal device when the signal strength of the energy supply signal is less than a preset threshold, the terminal device first performs energy collection to drive the link normally, and then when communicating, the energy provided by the energy supply signal is less than the energy consumed by the link Energy. In this case, even if the energy supply signal exists all the time, the terminal device can only maintain communication for a period of time.
  • This state is called the first state in this paper.
  • the first state may also be called a power hungry state.
  • the terminal device in the first state may be referred to as the first type of terminal device, that is, the type of the terminal device is the first type. At this time, intermittent communication interruptions will occur when the terminal device communicates with the network device.
  • the second state refers to a state in which the terminal device can maintain continuous backscatter communication based on energy harvesting of the received energy supply signal, or the second type refers to a state based on the received The type of device that can maintain the terminal device to perform continuous backscatter communication after energy harvesting of the energy supply signal.
  • the terminal device when the signal strength of the energy supply signal is greater than a preset threshold, the terminal device first performs energy collection to drive the link normally, and then when communicating, the energy provided by the energy supply signal is greater than the energy consumed by the link Energy, in this case, as long as the energy supply signal exists, the terminal device can communicate all the time.
  • This state is referred to as the second state in this paper; when the signal strength of the energy supply signal is equal to a preset threshold, the terminal device first performs Energy harvesting enables the link to drive normally. Afterwards, when communicating, the energy that the energy supply signal can provide is equal to the energy consumed by the link. In this case, as long as the energy supply signal exists, the terminal device can always communicate.
  • This article also This state is called the second state.
  • the second state may also be called a normal state.
  • the terminal device in the second state may be called a second type of terminal device, that is, the type of the terminal device is the second type.
  • the state of the energy value includes at least one state corresponding to at least one energy value range; and/or, the state of the communication duration includes at least one state corresponding to at least one communication duration range.
  • the scheme involving network equipment may also include the scheme for reporting the total energy value and/or the total sustainable communication duration.
  • the scheme for interaction between network equipment and terminal equipment For the steps of the network device, reference may be made to the corresponding steps of the terminal device, and for the sake of brevity, details are not repeated here.
  • the backscatter signal sent by the terminal device to the network device carries the first indication information, so as to inform the network device of the total communication duration that the energy of the terminal device can maintain after energy collection.
  • the duration indicated by the first indication information may be an absolute duration, and the unit may be seconds, or milliseconds, etc., indicating a specific duration of time; optionally, the duration indicated by the first indication information It can be a relative time length, that is, the number of time units that can maintain communication.
  • the time unit can be symbols, time slots, subframes, frames or other time units, or the time newly defined in zero-power communication unit.
  • the first indication information may be sent alone or together with other information.
  • it can be carried at the head, tail, middle, or preset position of the data packet.
  • the first indication information sent by the terminal device may be reported actively, or may be reported based on network side scheduling.
  • the backscatter signal sent by the terminal device carries the first indication information, and may be sent after establishing a connection with the network device, that is, after receiving a trigger signal sent by the network device.
  • the duration indicated by the first indication information is a duration during which communication can be maintained after the current backscatter signal is sent.
  • the first indication information may be carried when the backscatter signal is sent for the first time; or after receiving the trigger signal, the backscatter signal sent in the preset time unit
  • the signal carries the first indication information; or after receiving the trigger signal, according to the indication information in the trigger signal (that is, the network side sends the trigger signal to instruct the terminal device on which time unit to send the first indication information),
  • the first indication information is carried in the backscatter signal sent in the corresponding time unit.
  • the backscatter signal sent by the terminal device carries the first indication information, and may also be sent before the connection with the network device is established, that is, after the energy collection is completed, the trigger signal sent by the network device has not been received yet. It is equivalent to that the terminal device actively reports its own first indication information.
  • the duration indicated by the first indication information is the duration during which the communication can be maintained after the current backscatter signal is sent, and is also the duration during which the battery can work after being fully charged.
  • the network device when the network device sends the trigger signal, it may carry a feedback information (such as ACK/NCNK, or only ACK/NULL), and correspondingly, when the terminal device receives the trigger signal, it will detect the feedback information, if Indicates that the network device fails to receive the first indication information, and will continue to resend the first indication information after receiving the trigger signal according to the above. duration.
  • a feedback information such as ACK/NCNK, or only ACK/NULL
  • the terminal device may determine whether the state of the terminal device is the first state or the second state based on the signal strength of the trigger signal and/or the energy supply signal, or based on the time length of charging completion, or determine that the terminal device Whether the type of the device is the first type or the second type, and then determine whether to send the first indication information: specifically, when the signal strength is greater than a preset threshold, or the charging time is less than a preset threshold, at this time it can be considered that the energy harvesting After driving the circuit, as long as the power supply signal is always present, the communication can be continued, that is, the state of the terminal device is the second state or the type of the terminal device is the second type, therefore, there is no need to send the first indication information On the contrary, after the terminal device performs energy harvesting and driving the link, even if the energy supply signal exists all the time, it can only maintain communication for a period of time, that is, the state of the terminal device is the first state or the type of the terminal device is the first type, At this time,
  • all terminal devices may send energy indication information.
  • a preset value A is used to indicate that the power is sufficient, and the communication can be continued without worrying about subsequent communication interruption caused by insufficient power.
  • the network device can instruct the terminal device to report its own power value in the trigger signal, and then receive and process the first indication information; it can also not indicate, and perform corresponding detection on each backscatter signal Processing; the network device receives the backscatter signal, performs demodulation and decoding processing on it, and obtains the first indication information; if it is the first indication information detected before sending the trigger signal, then send the trigger signal When the signal is sent, it will carry the feedback information of the first indication information, indicating that the first indication information is successfully received, and the scheduling and communication of the terminal device will be completed within the duration indicated by the first indication information; If the first indication information is not detected before sending the trigger signal, when the trigger signal is sent, the trigger information can be sent normally without carrying the feedback information of the first indication information, or it can indicate that the first indication has not been received information (corresponding to NACK); if the first indication information is not received, or the received first indication information is used to indicate that the energy of the terminal device is sufficient, then the network device can normally schedule the terminal device;
  • the network device may store it in the core network or other dedicated nodes.
  • the terminal device it is not necessary to indicate the power information in each communication, but only needs to report it when it communicates with the network device for the first time; there is no need to actively report it in the future, and it can follow the instructions of the network device Report on demand, just update the information stored in the core network or dedicated nodes; for terminal equipment communicating with network equipment, if the core network or dedicated nodes have stored the information of the equipment, the network equipment knows the status of the terminal equipment If it is in the first state or the type of the terminal device is the first type, then according to the stored information, the communication with the terminal device and the corresponding scheduling are only performed within the corresponding duration.
  • the network device may not store it: in this case, the terminal device needs to indicate the power information every time.
  • the terminal device first collects energy and then communicates.
  • the backscatter signal sent by the terminal device to the network device carries the first indication information, to inform the network device that the energy of the terminal device after energy harvesting can still maintain communication, or inform the network device that the energy of the terminal device is lower than a preset threshold.
  • the first indication information carried in the backscatter signal indicates to the network device how long the communication can still be maintained.
  • the duration indicated by the first indication information may be an absolute duration, and the unit may be seconds, or milliseconds, etc., indicating a specific duration of time; optionally, the duration indicated by the first indication information It can be a relative time length, that is, the number of time units that can maintain communication.
  • the time unit can be symbols, time slots, subframes, frames or other time units, or the time newly defined in zero-power communication unit.
  • the first indication information may be sent alone or together with other information.
  • it can be carried at the head, tail, middle, or preset position of the data packet.
  • the first indication information carried by the backscatter signal indicates to the network device that the energy of the terminal device is lower than a preset threshold:
  • the first indication information may be a specific sequence or a special identifier.
  • a time length X that can still communicate can be associated.
  • X can be an absolute time length or a relative time length, that is, X time units.
  • the time unit It can be symbols, time slots, subframes, frames or other time units or newly defined time units in zero-power communication, that is, the working time does not exceed X.
  • scheduling can be performed within X time at most.
  • the network device receives the backscatter signal, performs demodulation and decoding processing on it, and obtains the first indication information; if the first indication information does not exist, or is preset, it indicates that the energy is sufficient value, the network device can normally schedule zero power consumption; if the first indication information is a value indicating a limited communication duration, or a preset sequence or flag indicating that the energy is lower than a specific threshold, the network device Scheduling for zero power consumption needs to be controlled within the limited communication duration or within the preset communication duration when the energy is lower than the threshold.
  • the network device may combine the length of communication time and the remaining communication time determined by the first indication information (considering the time of invalid monitoring if necessary) to calculate the The length of time that the terminal device can maintain communication after energy collection, and store it on the core network or other dedicated nodes: in this case, for the terminal device, it is not necessary to carry out power information in each communication Instructions only need to be reported when communicating with network equipment for the first time; Subsequent reports do not need to be reported, and can be reported on demand according to the instructions of network equipment to update the information stored in the core network or dedicated nodes; for communication with network equipment For a terminal device, if the core network or dedicated node has stored the information of the device, and the network device knows that the state of the terminal device is the first state or the type of the terminal device is the first type, then according to the stored information, only The communication with the terminal device and the corresponding scheduling are carried out within the corresponding time period. Certainly, after the network device receives the first indication
  • the terminal device collects energy first, and then communicates.
  • the energy is lower than a preset threshold, that is, it is not enough for communication in the next time unit
  • the backscattered data sent by the terminal device to the network device at this time The first indication information is carried in the signal to inform the network equipment that the terminal equipment has insufficient energy, or send an indication to the network equipment to interrupt communication.
  • the first indication information carried in the backscatter signal indicates to the network device that the energy of the terminal device is lower than a preset threshold.
  • the first indication information may be a specific sequence or a special identifier.
  • the first indication information may be sent alone or together with other information.
  • it can be carried at the head, tail, middle, or preset position of the data packet.
  • the first indication information carried by the backscatter signal indicates to the network device that the energy of the terminal device is not enough to support the communication of the next time unit/not enough to support the transmission of the next data packet/needs to be transmitted in this reverse After the scattered signal is sent, the communication is interrupted to recharge:
  • the network device receives the backscatter signal, performs demodulation and decoding processing on it, and obtains the first indication information; if the first indication information does not exist, the network device performs zero power consumption Scheduling can be performed normally; if the first indication information is detected, the network device recognizes that the terminal device has insufficient battery power and cannot communicate in the next time unit, that is, the terminal device needs to interrupt communication. At this time, the network device stops scheduling and communicating with the terminal device in the next time unit, and waits for the terminal device to complete energy collection before performing a new round of communication.
  • the network device after the network device receives the first indication information sent by the terminal device, it can calculate the length of time that the terminal device can maintain communication after energy collection according to the length of time that has been communicated (considering the time of invalid monitoring if necessary). , and store it on the core network or other dedicated nodes: in this case, for the terminal device, it is not necessary to indicate the power information in each communication, and it only needs to communicate with the network device for the first time It is not necessary to report later, it can be reported on demand according to the instructions of the network equipment, and the information stored in the core network or dedicated nodes can be updated.
  • the network device For a terminal device communicating with a network device, if the core network or a dedicated node has stored the information of the device, and the network device knows that the state of the terminal device is the first state or the type of the terminal device is the first type, then According to the stored information, the communication with the terminal device and the corresponding scheduling are only performed within the corresponding time period. Certainly, after the network device receives the first indication information sent by the terminal device, it may not store it: in this case, the terminal device needs to indicate the power information every time.
  • Fig. 7 shows a schematic flowchart of a wireless communication method 300 according to an embodiment of the present application, and the method 300 can be executed interactively by a terminal device and a network device.
  • the terminal device shown in FIG. 7 may be the terminal device 120 shown in FIG. 1 , such as a zero-power consumption terminal.
  • the network device shown in FIG. 7 may be the network device 110 shown in FIG. 1 .
  • the method 300 may include part or all of the following:
  • S310 Receive a trigger signal, where the trigger signal is used to schedule the terminal device to perform backscatter communication within a first duration;
  • the energy value of the terminal device can only maintain backscatter communication within a second time period shorter than the first time period, send a backscatter signal within the second time period.
  • the trigger signal is carried in the power supply signal.
  • the method 200 is described above from the perspective of a terminal device with reference to FIG. 6 , and the method 200 is described below from the perspective of a network device with reference to FIG. 6 .
  • the method 300 may include part or all of the following:
  • the method 300 may also include:
  • the method 300 may also include:
  • the second duration is determined as the total communication duration.
  • determine the state or type of the terminal device if the state of the terminal device is the first state or the type of the terminal device is the first type, then determine to send to the core network device or the other network
  • the device reports the total energy value and/or the total communication duration.
  • the status or type of the terminal device is determined based on the strength of the second signal received by the network device.
  • the strength of the second signal is less than or equal to the seventh threshold, determine that the state of the terminal device is the first state or determine that the type of the terminal device is the first type; and/or, if the The strength of the second signal is greater than or equal to the seventh threshold, and the state of the terminal device is determined to be the second state or the type of the terminal device is determined to be the second type.
  • the second state refers to a state in which the terminal device can maintain continuous backscatter communication based on energy harvesting of the received energy supply signal, or the second type refers to a state based on the received The type of device that can maintain the terminal device to perform continuous backscatter communication after energy harvesting of the energy supply signal.
  • the first state refers to a state in which the terminal device can only maintain backscatter communication for a period of time after performing energy harvesting on the received energy supply signal; and/or, the first state
  • the type refers to a device type that can only maintain backscatter communication of the terminal device for a period of time after energy harvesting is performed on the received power supply signal.
  • the trigger signal is carried in the power supply signal.
  • the method 300 will be described below in combination with specific embodiments.
  • the terminal device communicates based on the scheduling of the network device, and does not report the power quantity.
  • the network device supplies energy signals and trigger signals to the terminal device. After the terminal device completes energy collection, it will receive the trigger signal sent by the network device. The network device schedules the terminal device to perform backscattering within a period of time L through the trigger signal. Signal transmission; after the terminal device completes energy collection, it sends a backscatter signal within a period of time L based on the trigger signal.
  • the energy is sufficient, it will communicate normally within the time L; if the terminal device has insufficient energy, it can only communicate within L1( L1 ⁇ L) time for communication; network equipment detects and processes backscatter signals within L time, if the backscatter signal is normally processed within L time, it means that the terminal equipment is working normally; otherwise, if it can only be within L1 time
  • the network device recognizes that the state of the terminal device is the first state or the type of the terminal device is the first type. Based on this, the network device stops scheduling the terminal device in the next time unit, that is, waits for The terminal device is charged, and after the terminal device is fully charged, a connection is established again for communication.
  • the network device For network devices, after the network device recognizes that the state of the terminal device is the first state or the type of the terminal device is the first type, that is, the terminal device will experience intermittent communication interruptions, and the said terminal device can be calculated according to the communication process.
  • the sequence numbers of the above-mentioned processes do not mean the order of execution, and the order of execution of the processes should be determined by their functions and internal logic, and should not be used in this application.
  • the implementation of the examples constitutes no limitation.
  • the terms “downlink” and “uplink” are used to indicate the transmission direction of signals or data, wherein “downlink” is used to indicate that the transmission direction of signals or data is from the station to the user equipment in the cell For the first direction, “uplink” is used to indicate that the signal or data transmission direction is the second direction from the user equipment in the cell to the station, for example, “downlink signal” indicates that the signal transmission direction is the first direction.
  • the term "and/or" is only an association relationship describing associated objects, indicating that there may be three relationships. Specifically, A and/or B may mean: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" in this article generally indicates that the contextual objects are an "or" relationship.
  • Fig. 8 is a schematic block diagram of a terminal device 410 according to an embodiment of the present application.
  • the terminal device 410 may include:
  • the sending unit 411 is configured to send first indication information; the first indication information is used to indicate the energy value of the terminal device and/or the sustainable communication duration; or the first indication information is used to indicate the remaining energy of the terminal device value and/or the remaining sustainable communication duration is insufficient; or the first indication information is used to indicate that the terminal device interrupts communication; or the first indication information is used to indicate that the energy of the terminal device is sufficient; or the The first indication information is used to indicate the state of the energy value of the terminal device and/or the state of the sustainable communication duration.
  • the first indication information is used to indicate the energy value of the terminal device and/or the sustainable communication duration, including at least one of the following:
  • the first indication information is used to indicate the total energy value and/or the total sustainable communication duration after the terminal device completes energy collection or charging; or
  • the first indication information is used to indicate the remaining energy value and/or the remaining maintainable communication duration of the terminal device.
  • the first indication information is used to indicate the remaining energy value and/or maintainable remaining communication duration of the terminal device, including at least one of the following:
  • the first indication information is used to indicate that the remaining energy value of the terminal device is less than or equal to a first threshold
  • the first indication information is used to indicate that the remaining communication duration that the terminal device can maintain is less than or equal to the second threshold.
  • the sustainable communication duration is an absolute duration or a relative duration.
  • the relative duration is represented by the number of time units.
  • the first indication information is used to indicate that the remaining energy value of the terminal device and/or the remaining sustainable communication duration is insufficient, including at least one of the following:
  • the first indication information is used to indicate that the remaining energy value of the terminal device is less than or equal to a third threshold
  • the first indication information is used to indicate that the remaining communication duration that the terminal device can maintain is less than or equal to a fourth threshold
  • the first indication information is used to indicate that the energy value of the terminal device is not enough to support communication in the next time unit;
  • the first indication information is used to indicate that the energy value of the terminal device is not enough to support the transmission of the next data packet.
  • the first indication information is used to instruct the terminal device to interrupt communication, including: the first indication information is used to indicate that the terminal device is carrying the first indication information in the backscatter Communication is interrupted after signal transmission is complete.
  • the first indication information is used to indicate the total energy value and/or the total sustainable communication duration after the terminal device completes energy harvesting or charging; or the first indication information is used to indicate The state of the energy value of the terminal device and/or the state of the maintainable communication duration; wherein, the sending unit 411 is specifically used for:
  • the sending unit 411 is specifically configured to:
  • the terminal device When the terminal device completes energy collection or charging and does not receive a trigger signal, the first indication information is sent to the network device.
  • the first indication information is used to indicate the energy value of the terminal device and/or the sustainable communication duration; or the first indication information is used to indicate the state of the energy value of the terminal device and/or Or the state of the maintainable communication duration; wherein, the sending unit 411 is specifically used for:
  • the sending unit 411 is specifically configured to:
  • the terminal device After the terminal device establishes a connection with the network device, sending the first indication information to the network device; or
  • the terminal device When the terminal device completes energy collection or charging and receives a trigger signal, the terminal device sends the first indication information to the network device.
  • the sending unit 411 is specifically configured to:
  • the backscatter signal is sent based on the scheduling of the trigger signal, and the first indication information is carried in the backscatter signal scheduled by the trigger signal.
  • the first indication information is carried in the backscatter signal sent for the first time scheduled by the trigger signal; or the first indication information is carried in the trigger signal on the first time unit in the scheduled backscatter signal.
  • the first time unit is predefined, or the first time unit is indicated by the network device through the trigger signal.
  • the sending unit 411 is further configured to:
  • the second indication information is used to indicate whether the network device has received the first indication information reported by the terminal device.
  • the second indication information is used to indicate that the network device has not received the first indication information reported by the terminal device; the sending unit 411 is further configured to:
  • the communication duration indicated by the first indication information is longer than the communication duration indicated by the third indication information; and/or, the energy value indicated by the first indication information is greater than that indicated by the third indication information energy value.
  • the second indication information is carried in an energy supply signal and/or a trigger signal.
  • the first indication information is used to indicate the remaining energy value of the terminal device and/or the remaining sustainable communication duration; wherein, the sending unit 411 is specifically configured to:
  • the first indication information is sent.
  • the first indication information is used to indicate that the energy value of the terminal device is insufficient, or the first indication information is used to indicate that the terminal device interrupts communication; wherein the sending unit 411 is specifically configured to:
  • the terminal device If the terminal device satisfies at least one of the following, send the first indication information:
  • the remaining energy value of the terminal device is less than or equal to a third threshold
  • the first indication information is sent separately.
  • the first indication information is carried in a first position of a data packet, and the data packet includes the first indication information and other information.
  • the first position includes at least one of the following positions of the data packet: a head position, a tail position or a middle position.
  • the first location is a preset location, or the first location is a location indicated by a network device.
  • the sending unit 411 is further configured to:
  • a state or type of the terminal device is determined.
  • the first indication information is used to indicate the energy value of the terminal device and/or the sustainable communication duration; or the first indication information is used to indicate that the energy value of the terminal device is insufficient; or the second One indication information is used to indicate that the terminal device interrupts communication; or the first indication information is used to indicate the state of the energy value of the terminal device and/or the state of the sustainable communication duration; the sending unit 411 also uses At:
  • the state of the terminal device is the first state or the type of the terminal device is the first type, it is determined to send the first indication information.
  • the first indication information is used to indicate the energy value of the terminal device and/or the sustainable communication duration, or the first indication information is used to indicate that the energy value of the terminal device is insufficient, or the first indication information is used to indicate that the terminal device interrupts communication, or the first indication information is used to indicate the The state of the energy value of the terminal device and/or the state of the maintainable communication duration; if the state of the terminal device is the second state or the type of the terminal device is the second type, the first indication information is used To indicate that the energy of the terminal device is sufficient, or the first indication information is used to indicate that the state of the energy value of the terminal device and/or the state of the sustainable communication duration is a sufficient state or indicates that the power supply signal is allowed to be interrupted duration.
  • the second state refers to a state in which the terminal device can maintain continuous backscatter communication based on energy harvesting of the received energy supply signal, or the second type refers to a state based on the received The type of device that can maintain the terminal device to perform continuous backscatter communication after energy harvesting of the energy supply signal.
  • the first state refers to a state in which the terminal device can only maintain backscatter communication for a period of time after performing energy harvesting on the received energy supply signal; and/or, the first state
  • the type refers to a device type that can only maintain backscatter communication of the terminal device for a period of time after energy harvesting is performed on the received power supply signal.
  • the sending unit 411 is specifically configured to:
  • the status or type of the terminal device is determined.
  • the sending unit 411 is specifically configured to:
  • the strength of the first signal is less than or equal to a fifth threshold, determine that the state of the terminal device is the first state or determine that the type of the terminal device is the first type; and/or, if the strength of the first signal If the intensity is greater than or equal to the fifth threshold, it is determined that the state of the terminal device is the second state or the type of the terminal device is determined as the second type.
  • the sending unit 411 is specifically configured to:
  • the sending unit 411 is specifically configured to:
  • the sixth threshold is to determine that the state of the terminal device is the second state or determine that the type of the terminal device is the second type.
  • the state of the energy value includes at least one state corresponding to at least one energy value range; and/or, the state of the communication duration includes at least one state corresponding to at least one communication duration range.
  • the device embodiment and the method embodiment may correspond to each other, and similar descriptions may refer to the method embodiment.
  • the terminal device 410 shown in FIG. 8 may correspond to the corresponding subject in executing the method 200 of the embodiment of the present application, and the aforementioned and other operations and/or functions of each unit in the terminal device 410 are for realizing the For the sake of brevity, the corresponding processes in each method are not repeated here.
  • FIG. 9 is a schematic block diagram of a network device 420 according to an embodiment of the present application.
  • the network device 420 may include:
  • the receiving unit 421 is configured to receive first indication information, where the first indication information is used to indicate the energy value of the terminal device and/or the sustainable communication duration; or the first indication information is used to indicate the remaining energy of the terminal device value and/or the remaining sustainable communication duration is insufficient; or the first indication information is used to indicate that the terminal device interrupts communication; or the first indication information is used to indicate that the energy of the terminal device is sufficient; or the The first indication information is used to indicate the state of the energy value of the terminal device and/or the state of the sustainable communication duration;
  • the first indication information is used to indicate the energy value of the terminal device and/or the sustainable communication duration
  • scheduling unit 422 is specifically used for:
  • the terminal device is scheduled within the communication duration determined based on the energy value indicated by the first indication information.
  • the first indication information is used to indicate that the remaining energy value of the terminal device and/or the remaining sustainable communication duration is insufficient; or the first indication information is used to indicate that the terminal device interrupts communication;
  • scheduling unit 422 is specifically used for:
  • the receiving unit 421 is also used for:
  • the first indication information is used to indicate the total energy value and/or the total sustainable communication duration after the terminal device completes energy collection or charging; wherein, the receiving unit 421 is specifically used to :
  • the first indication information is used to indicate the energy value of the terminal device and/or the sustainable communication duration; or the first indication information is used to indicate that the terminal device interrupts communication; wherein, the The receiving unit 421 is specifically used for:
  • the total communication duration is determined based on the communication duration indicated by the first indication information and the communication duration of the terminal device.
  • the first indication information is used to indicate the state of the energy value of the terminal device and/or the state of the sustainable communication duration; wherein, the receiving unit 421 is specifically configured to:
  • the total communication duration is determined based on the state of the communication duration indicated by the first indication information and the communication duration of the terminal device.
  • the first indication information is used to indicate the energy value of the terminal device and/or the sustainable communication duration, including at least one of the following:
  • the first indication information is used to indicate the total energy value and/or the total sustainable communication duration after the terminal device completes energy collection or charging; or
  • the first indication information is used to indicate the remaining energy value and/or the remaining maintainable communication duration of the terminal device.
  • the first indication information is used to indicate the remaining energy value and/or maintainable remaining communication duration of the terminal device, including at least one of the following:
  • the first indication information is used to indicate that the remaining energy value of the terminal device is less than or equal to a first threshold
  • the first indication information is used to indicate that the remaining communication duration that the terminal device can maintain is less than or equal to the second threshold.
  • the sustainable communication duration is an absolute duration or a relative duration.
  • the relative duration is represented by the number of time units.
  • the first indication information is used to indicate that the remaining energy value of the terminal device and/or the remaining sustainable communication duration is insufficient, including at least one of the following:
  • the first indication information is used to indicate that the remaining energy value of the terminal device is less than or equal to a third threshold
  • the first indication information is used to indicate that the remaining communication duration that the terminal device can maintain is less than or equal to a fourth threshold
  • the first indication information is used to indicate that the energy value of the terminal device is not enough to support communication in the next time unit;
  • the first indication information is used to indicate that the energy value of the terminal device is not enough to support the transmission of the next data packet.
  • the first indication information is used to instruct the terminal device to interrupt communication, including: the first indication information is used to indicate that the terminal device is carrying the first indication information in the backscatter Communication is interrupted after signal transmission is complete.
  • the first indication information is used to indicate the total energy value and/or the total sustainable communication duration after the terminal device completes energy harvesting or charging; or the first indication information is used to indicate The state of the energy value of the terminal device and/or the state of the sustainable communication duration; wherein, the receiving unit 421 is specifically used for:
  • the receiving unit 421 is specifically configured to:
  • the terminal device Before the terminal device establishes a connection with the network device, receive the first indication information sent by the terminal device; or
  • the first indication information actively reported by the terminal device is received.
  • the first indication information is used to indicate the energy value of the terminal device and/or the sustainable communication duration; or the first indication information is used to indicate the state of the energy value of the terminal device and/or Or the state of the maintainable communication duration; wherein, the receiving unit 421 is specifically used for:
  • the first indication information is received based on the scheduling of the terminal device by the network device.
  • the receiving unit 421 is specifically configured to:
  • the terminal device After the terminal device establishes a connection with the network device, receiving the first indication information sent by the terminal device; or
  • the first indication information is sent to the network device.
  • the receiving unit 421 is specifically configured to:
  • the backscatter signal is received based on the scheduling of the trigger signal, and the first indication information is carried in the backscatter signal scheduled by the trigger signal.
  • the first indication information is carried in the backscatter signal sent for the first time scheduled by the trigger signal; or the first indication information is carried in the trigger signal on the first time unit in the scheduled backscatter signal.
  • the first time unit is predefined, or the first time unit is indicated by the network device through the trigger signal.
  • the receiving unit 421 is also used for:
  • Sending second indication information where the second indication information is used to indicate whether the network device has received the first indication information reported by the terminal device.
  • the second indication information is used to indicate that the network device has not received the first indication information reported by the terminal device; the receiving unit 421 is further configured to:
  • the third indication information is received based on the scheduling of the network device, where the third indication information is used to indicate the remaining energy value and/or the remaining maintainable communication duration of the terminal device.
  • the communication duration indicated by the first indication information is longer than the communication duration indicated by the third indication information; and/or, the energy value indicated by the first indication information is greater than that indicated by the third indication information energy value.
  • the second indication information is carried in an energy supply signal and/or a trigger signal.
  • the first indication information is sent separately.
  • the first indication information is carried in a first position of a data packet, and the data packet includes the first indication information and other information.
  • the first position includes at least one of the following positions of the data packet: a head position, a tail position or a middle position.
  • the first location is a preset location, or the first location is a location indicated by a network device.
  • the first indication information is used to indicate the energy value of the terminal device and/or the sustainable communication duration; or the first indication information is used to indicate that the energy value of the terminal device is insufficient; or the second One indication information is used to indicate that the terminal device interrupts communication; or the first indication information is used to indicate the state of the energy value of the terminal device and/or the state of the sustainable communication duration; the receiving unit 421 also uses At:
  • the receiving unit 421 is specifically configured to:
  • the receiving unit 421 is specifically configured to:
  • the state or type of the terminal device is determined.
  • the receiving unit 421 is specifically configured to:
  • the strength of the second signal is less than or equal to the seventh threshold, determine that the state of the terminal device is the first state or determine that the type of the terminal device is the first type; and/or, if the second signal is If the strength is greater than or equal to the seventh threshold, it is determined that the state of the terminal device is the second state or the type of the terminal device is determined as the second type.
  • the first indication information is used to indicate the energy value of the terminal device and/or the sustainable communication duration, or the first indication information is used to indicate that the energy value of the terminal device is insufficient, or the first indication information is used to indicate that the terminal device interrupts communication, or the first indication information is used to indicate the The state of the energy value of the terminal device and/or the state of the maintainable communication duration; if the state of the terminal device is the second state or the type of the terminal device is the second type, the first indication information is used To indicate that the energy of the terminal device is sufficient, or the first indication information is used to indicate that the state of the energy value of the terminal device and/or the state of the sustainable communication duration is a sufficient state or indicates that the power supply signal is allowed to be interrupted duration.
  • the second state refers to a state in which the terminal device can maintain continuous backscatter communication based on energy harvesting of the received energy supply signal, or the second type refers to a state based on the received The type of device that can maintain the terminal device to perform continuous backscatter communication after energy harvesting of the energy supply signal.
  • the first state refers to a state in which the terminal device can only maintain backscatter communication for a period of time after performing energy harvesting on the received energy supply signal; and/or, the first state
  • the type refers to a device type that can only maintain backscatter communication of the terminal device for a period of time after energy harvesting is performed on the received power supply signal.
  • the state of the energy value includes at least one state corresponding to at least one energy value range; and/or, the state of the communication duration includes at least one state corresponding to at least one communication duration range.
  • the device embodiment and the method embodiment may correspond to each other, and similar descriptions may refer to the method embodiment.
  • the network device 420 shown in FIG. 9 may correspond to the corresponding subject in the method 200 of the embodiment of the present application, and the foregoing and other operations and/or functions of each unit in the network device 420 are respectively in order to realize the For the sake of brevity, the corresponding processes in each method are not repeated here.
  • Fig. 10 is a schematic block diagram of a terminal device 510 according to an embodiment of the present application.
  • the terminal device 510 may include:
  • the receiving unit 511 is configured to receive a trigger signal, and the trigger signal is used to schedule the terminal device to perform backscatter communication within the first duration;
  • the sending unit 512 is configured to send a backscatter signal within the second duration if the energy value of the terminal device can only maintain backscatter communication within a second duration shorter than the first duration.
  • the trigger signal is carried in the power supply signal.
  • the device embodiment and the method embodiment may correspond to each other, and similar descriptions may refer to the method embodiment.
  • the terminal device 510 shown in FIG. 10 may correspond to the corresponding subject in the method 300 of the embodiment of the present application, and the foregoing and other operations and/or functions of each unit in the terminal device 510 are respectively in order to realize the For the sake of brevity, the corresponding processes in each method are not repeated here.
  • FIG. 11 is a schematic block diagram of a network device 520 according to an embodiment of the present application.
  • the network device 520 may include:
  • the sending unit 521 is configured to send a trigger signal, where the trigger signal is used to schedule the terminal device to perform backscatter communication within the first duration;
  • the determining unit 522 is configured to determine that the energy value of the terminal device is insufficient if the backscatter signal sent by the terminal device is only detected within a second time period shorter than the first time period.
  • the determining unit 522 is further configured to:
  • the sending unit 521 is further configured to:
  • the sending unit 521 is specifically configured to:
  • the second duration is determined as the total communication duration.
  • the sending unit 521 is specifically configured to:
  • the sending unit 521 is specifically configured to:
  • the state or type of the terminal device is determined.
  • the sending unit 521 is specifically configured to:
  • the strength of the second signal is less than or equal to the seventh threshold, determine that the state of the terminal device is the first state or determine that the type of the terminal device is the first type; and/or, if the second signal is If the strength is greater than or equal to the seventh threshold, it is determined that the state of the terminal device is the second state or the type of the terminal device is determined as the second type.
  • the second state refers to a state in which the terminal device can maintain continuous backscatter communication based on energy harvesting of the received energy supply signal, or the second type refers to a state based on the received The type of device that can maintain the terminal device to perform continuous backscatter communication after energy harvesting of the energy supply signal.
  • the first state refers to a state in which the terminal device can only maintain backscatter communication for a period of time after performing energy harvesting on the received energy supply signal; and/or, the first state
  • the type refers to a device type that can only maintain backscatter communication of the terminal device for a period of time after energy harvesting is performed on the received power supply signal.
  • the trigger signal is carried in the power supply signal.
  • the device embodiment and the method embodiment may correspond to each other, and similar descriptions may refer to the method embodiment.
  • the network device 520 shown in FIG. 11 may correspond to the corresponding subject in the method 300 of the embodiment of the present application, and the foregoing and other operations and/or functions of each unit in the network device 520 are respectively in order to realize the For the sake of brevity, the corresponding processes in each method are not repeated here.
  • the functional modules may be implemented in the form of hardware, may also be implemented by instructions in the form of software, and may also be implemented by a combination of hardware and software modules.
  • each step of the method embodiment in the embodiment of the present application can be completed by an integrated logic circuit of the hardware in the processor and/or instructions in the form of software, and the steps of the method disclosed in the embodiment of the present application can be directly embodied as hardware
  • the decoding processor is executed, or the combination of hardware and software modules in the decoding processor is used to complete the execution.
  • the software module may be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, and registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps in the above method embodiments in combination with its hardware.
  • the sending unit 411 , the receiving unit 421 , the receiving unit 511 , the sending unit 512 , and the sending unit 521 mentioned above may be implemented by a transceiver, and the determining unit 522 mentioned above may be implemented by a processor.
  • Fig. 12 is a schematic structural diagram of a communication device 600 according to an embodiment of the present application.
  • the communication device 600 may include a processor 610 .
  • processor 610 may invoke and run a computer program from the 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 memory 620 may be used to store indication information, and may also be used to store codes, instructions, etc. executed by the processor 610 .
  • 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 .
  • the processor 610 can control the transceiver 630 to communicate with other devices, specifically, can send information or data to other devices, or receive information or data sent by other devices.
  • 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.
  • bus system includes not only a data bus, but also a power bus, a control bus, and a status signal bus.
  • the communication device 600 may be the 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, that is, the terminal device in the embodiment of the present application
  • the communication device 600 may correspond to the terminal device 410 or the terminal device 510 in the embodiment of the present application, and may correspond to a corresponding subject performing the method 200 according to the embodiment of the present application, and details are not repeated here for brevity.
  • the communication device 600 may 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 the various methods of the embodiment of the present application.
  • the communication device 600 in the embodiment of the present application may correspond to the network device 420 or the network device 520 in the embodiment of the present application, and may correspond to the corresponding subject executing the method 300 according to the embodiment of the present application.
  • the communication device 600 in the embodiment of the present application may correspond to the network device 420 or the network device 520 in the embodiment of the present application, and may correspond to the corresponding subject executing the method 300 according to the embodiment of the present application.
  • a chip is also provided in the embodiment of the present application.
  • the chip may be an integrated circuit chip, which has signal processing capabilities, and can implement or execute the methods, steps and logic block diagrams disclosed in the embodiments of the present application.
  • the chip can also be called system-on-chip, system-on-chip, system-on-chip or system-on-chip, etc.
  • the chip can be applied to various communication devices, so that the communication device installed with the chip can execute the methods, steps and logic block diagrams disclosed in the embodiments of the present application.
  • FIG. 13 is a schematic structural diagram of a chip 700 according to an embodiment of the present application.
  • the chip 700 includes a processor 710 .
  • the processor 710 can invoke and run a computer program from the 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 used to store indication information, and may also be used to store codes, instructions, etc. executed by the processor 710 .
  • 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 further 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 further 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 700 can be applied to the network device in the embodiment of the present application, and the chip can realize the corresponding process implemented by the network device in the various methods of the embodiment of the present application, and can also realize the various methods of the embodiment of the present application For the sake of brevity, the corresponding process implemented by the terminal device in , will not be repeated here.
  • bus system includes not only a data bus, but also a power bus, a control bus, and a status signal bus.
  • Processors mentioned above may include, but are not limited to:
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • the processor may be used to implement or execute the methods, steps and logic block diagrams disclosed in the embodiments of the present application.
  • 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 may 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 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 storage mentioned above includes but is not limited to:
  • 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 double data rate synchronous dynamic random access memory
  • Enhanced SDRAM, ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous connection dynamic random access memory
  • Direct Rambus RAM Direct Rambus RAM
  • Embodiments of the present application also provide a computer-readable storage medium for storing computer programs.
  • the computer-readable storage medium stores one or more programs, and the one or more programs include instructions.
  • the portable electronic device can perform the wireless communication provided by the application. communication method.
  • the computer-readable storage medium can be applied to the network device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, here No longer.
  • 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 embodiment of the present application also provides a computer program product, including a computer program.
  • the computer program product can be applied to the network device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present application.
  • the repeat can be applied to the computer program product 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 methods of the embodiments of the present application, for It is concise and will not be repeated here.
  • the embodiment of the present application also provides a computer program.
  • the computer program When the computer program is executed by the computer, the computer can execute the wireless communication method provided in this application.
  • the computer program can be applied to the network device in the embodiment of the present application.
  • the computer program When the computer program is run on the computer, the computer is made to execute the corresponding processes implemented by the network device in the methods of the embodiment of the present application. For the sake of brevity , which will not be repeated here.
  • the computer program can be applied to the mobile terminal/terminal device in the embodiment of the present application.
  • the computer executes each method in the embodiment of the present application to be implemented by the mobile terminal/terminal device For the sake of brevity, the corresponding process will not be repeated here.
  • An embodiment of the present application also provides a communication system, which may include the above-mentioned terminal device and network device to form a communication system 100 as shown in FIG. 1 , which is not repeated here for brevity.
  • a communication system which may include the above-mentioned terminal device and network device to form a communication system 100 as shown in FIG. 1 , which is not repeated here for brevity.
  • system and the like in this document may also be referred to as “network management architecture” or “network system”.
  • the technical solution of the embodiment 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 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 method described in the embodiment of the present application.
  • the aforementioned storage medium includes: various media capable of storing program codes such as U disk, mobile hard disk, read-only memory, random access memory, magnetic disk or optical disk.
  • the units/modules/components described above as separate/display components may or may not be physically separated, that is, they may be located in one place, or may also be distributed to multiple network units. Part or all of the units/modules/components can be selected according to actual needs to achieve the purpose of the embodiments of the present application.
  • the mutual coupling or direct coupling or communication connection shown or discussed above may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms .

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Abstract

Des modes de réalisation de la présente demande concernent un procédé de communication sans fil, un dispositif terminal et un dispositif de réseau. Le procédé comprend : l'envoi de premières informations d'indication. Les premières informations d'indication sont utilisées pour indiquer une valeur d'énergie et/ou une durée de communication encore possible d'un dispositif terminal ; ou les premières informations d'indication sont utilisées pour indiquer qu'une valeur d'énergie restante et/ou une durée de communication restante encore possible du dispositif terminal sont insuffisantes ; ou les premières informations d'indication sont utilisées pour indiquer que le dispositif terminal interrompt une communication ; ou les premières informations d'indication sont utilisées pour indiquer que l'énergie du dispositif terminal est suffisante ; ou les premières informations d'indication sont utilisées pour indiquer l'état de la valeur d'énergie et/ou l'état de la durée de communication encore possible du dispositif terminal. Sur la base des premières informations d'indication, un dispositif de réseau peut savoir si ou quand la communication entre le dispositif terminal et le dispositif de réseau doit être interrompue, de sorte que le dispositif de réseau peut prendre des mesures correspondantes pour réduire l'influence causée par l'interruption de la communication, ce qui permet d'améliorer les performances de communication.
PCT/CN2021/109595 2021-07-30 2021-07-30 Procédé de communication sans fil, dispositif terminal et dispositif de réseau WO2023004748A1 (fr)

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CN202180096871.6A CN117099450A (zh) 2021-07-30 2021-07-30 无线通信方法、终端设备和网络设备
PCT/CN2021/109595 WO2023004748A1 (fr) 2021-07-30 2021-07-30 Procédé de communication sans fil, dispositif terminal et dispositif de réseau

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CN113067937A (zh) * 2021-03-18 2021-07-02 Oppo广东移动通信有限公司 蓝牙连接方法、装置、设备及存储介质
CN113099461A (zh) * 2021-04-01 2021-07-09 电子科技大学 一种基于非正交多址技术的共生无线电网络设计方法

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