Wireless communication method, terminal device, and network device

Abstract

Provided are a wireless communication method, a terminal device, and a network device. The method comprises: a terminal device receives a first paging message sent by a network device; and the terminal device determines to respond or not to respond to the first paging message. In the embodiments of the present application, the network device sends the first paging message to the terminal device, and the terminal device determines to respond or not to respond to the first paging message, which helps to improve the flexibility of data transmission.

Description

Method, terminal device and network device for wireless communication TECHNICAL FIELD

[0001] The present application relates to the technical field of communication, and more particularly, to a method, a terminal device and a network device for wireless communication. BACKGROUND

[0002] In some scenarios, a terminal device can only perform a sending or receiving operation after collecting a certain amount of energy, and conversely, the terminal device cannot perform a sending or receiving operation when it has not collected enough energy. However, a conventional paging mechanism is designed based on the working assumption that a terminal device can certainly respond to a first paging message, and can not be applicable to the terminal device in the scenario.

[0003] SUMMARY

[0004] The present application provides a method, a terminal device and a network device for wireless communication. The various aspects involved in the present application are described below.

[0005] In a first aspect, a method for wireless communication is provided, comprising: receiving, by a terminal device, a first paging message sent by a network device; and determining, by the terminal device, whether to respond to or not respond to the first paging message.

[0006] In a second aspect, a method for wireless communication is provided, comprising: sending, by a network device, a first paging message to a terminal device; and receiving, by the network device, response information sent by the terminal device for the first paging message, wherein transmission of the response information is determined based on energy of the terminal device.

[0007] In a third aspect, a method for wireless communication is provided, comprising: receiving, by a network device, first information sent by a terminal device, wherein the first information is used to indicate one or more of the following: energy of the terminal device; wireless signal quality of the terminal device; an amount of uplink data that can be transmitted based on the energy of the terminal device and / or the wireless signal quality of the terminal device; an amount of downlink data that can be transmitted based on the energy of the terminal device and / or the wireless signal quality of the terminal device; whether the energy of the terminal device and / or the wireless signal quality of the terminal device supports transmission of an amount of uplink data to be transmitted; whether the energy of the terminal device and / or the wireless signal quality of the terminal device supports transmission of an amount of downlink data to be transmitted; and energy collection speed of the terminal device.

[0008] In a fourth aspect, a terminal device is provided, comprising: a receiving unit configured to receive a first paging message sent by a network device; and a determining unit configured to determine whether to respond to or not respond to the first paging message.

[0009] In a fifth aspect, a network device is provided, comprising: a sending unit configured to send a first paging message to a terminal device; and a receiving unit configured to receive response information sent by the terminal device in response to the first paging message, wherein transmission of the response information is determined based on energy of the terminal device.

[0010] In a sixth aspect, a network device is provided, comprising: a receiving unit configured to receive first information sent by a terminal device, wherein the first information is used to indicate one or more of the following: energy of the terminal device; wireless signal quality of the terminal device; an amount of uplink data that can be transmitted based on the energy of the terminal device and / or the wireless signal quality of the terminal device; an amount of downlink data that can be transmitted based on the energy of the terminal device and / or the wireless signal quality of the terminal device; whether the amount of uplink data to be transmitted can be transmitted based on the energy of the terminal device and / or the wireless signal quality of the terminal device; whether the amount of downlink data to be transmitted can be transmitted based on the energy of the terminal device and / or the wireless signal quality of the terminal device; and energy harvesting speed of the terminal device.

[0011] In a seventh aspect, a terminal device is provided, comprising a processor, a memory, and a communication interface, wherein the memory is configured to store one or more computer programs, and the processor is configured to invoke the computer programs in the memory, so that the terminal device performs some or all of the steps in the method of the first aspect.

[0012] In an eighth aspect, a network device is provided, comprising a processor, a memory, and a transceiver, wherein the memory is configured to store one or more computer programs, and the processor is configured to invoke the computer programs in the memory, so that the network device performs some or all of the steps in the method of the second aspect or the third aspect.

[0013] In a ninth aspect, embodiments of the present application provide a communication system, which comprises the terminal device and / or the network device described above. In another possible design, the system can further comprise other devices interacting with the terminal device or the network device in the schemes provided by embodiments of the present application.

[0014] In a tenth aspect, embodiments of the present application provide a computer-readable storage medium, which stores a computer program, and the computer program causes a communication device (e.g., a terminal device or a network device) to perform some or all of the steps in the methods of the various aspects described above.

[0015] In a eleventh aspect, an embodiment of the present application provides a computer program product, which includes a non-transitory computer-readable storage medium storing a computer program, the computer program operable to cause a communication device (for example, a terminal device or a network device) to perform some or all of the steps of the methods in the various aspects described above. In some implementations, the computer program product can be a software installation package.

[0016] In a twelfth aspect, an embodiment of the present application provides a chip, which includes a memory and a processor. The processor can invoke and run a computer program from the memory to implement some or all of the steps described in the methods in the various aspects described above.

[0017] In the embodiments of the present application, the network device sends the first paging message to the terminal device, and the terminal device determines whether to respond or not to respond to the first paging message, which helps to improve the flexibility of data transmission. BRIEF DESCRIPTION OF DRAWINGS

[0018] FIG. 1 is a schematic diagram of a wireless communication system 100 to which embodiments of the present application can be applied.

[0019] FIG. 2 is a possible structure of an energy harvesting module.

[0020] FIG. 3 is a principle of backscatter communication according to an embodiment of the present application.

[0021] FIG. 4 is a circuit diagram of a terminal based on resistance load modulation technology.

[0022] FIGS. 5-6 are architecture diagrams of a cellular network-based low-power Internet of Things to which embodiments of the present application can be applied.

[0023] FIG. 7 is a graph of energy accumulation of an ambient Internet of Things (A-IoT) device according to an embodiment of the present application.

[0024] FIG. 8 is a schematic flowchart of a paging message transmission process.

[0025] FIG. 9 is a schematic flowchart of a method of wireless communication according to an embodiment of the present application.

[0026] FIG. 10 is a schematic diagram of a first paging window according to an embodiment of the present application.

[0027] FIG. 11 is an example diagram of a combination of multiple schemes in Embodiment 2.

[0028] FIG. 12 is an example diagram of a method of determining whether a first paging group includes a terminal device.

[0029] FIG. 13 is a schematic diagram of a terminal device according to an embodiment of the present application.

[0030] FIG. 14 is a schematic diagram of a network device according to an embodiment of the present application.

[0031] FIG. 15 is a schematic diagram of a network device according to another embodiment of the present application.

[0032] FIG. 16 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application. DETAILED DESCRIPTION

[0033] The technical solutions in the present application will be described below with reference to the accompanying drawings.

[0034] A-IoT

[0035] An A-IoT device is an IoT device that is powered by various environmental energy, such as wireless radio frequency energy, light energy, solar energy, thermal energy, mechanical energy, and the like. Such a device can have no energy storage capability or can have very limited energy storage capability (such as using a capacitor with a capacity of tens of microfarads (uF)). Compared with a conventional IoT device, an A-IoT device has many advantages, such as no conventional battery, no maintenance, small size, low complexity, low cost, long service life, and the like.

[0036] In some scenarios, an A-IoT device can also be referred to as a zero-power device.

[0037] An environmental IoT can include a network device 110 and an A-IoT device 120, as shown in FIG. 1. The network device is configured to transmit a wireless energy supply signal, a downlink communication signal to the A-IoT device, and receive a backscatter signal from the A-IoT device. A basic A-IoT device includes an energy harvesting module, a backscatter communication module, and a low-power computing module. In addition, the A-IoT device can also have a memory or a sensor for storing some basic information (such as an article identifier) or obtaining environmental temperature, environmental humidity, and the like.

[0038] It should be noted that FIG. 1 exemplarily shows one network device and one A-IoT device. Alternatively, the communication system 100 can include a plurality of network devices, and each network device can include a plurality of A-IoT devices within its coverage range. The embodiments of the present application do not limit the number of network devices and A-IoT devices.

[0039] In addition, in some implementations, the communication system 100 can further include a network controller, a mobile management entity, and other network entities. The embodiments of the present application do not limit the number of network entities.

[0040] It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, for example: a 5th generation (5G) system or new radio (NR), a long term evolution (LTE) system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD), a cellular Internet of Things (IoT), and the like. The technical solutions provided in the present application can also be applied to future communication systems, such as a 6th generation mobile communication system, and the like.

[0041] The A-IoT device in the embodiments of the present application can be used as a terminal device, which can also be referred to as a user equipment (UE), an access terminal, a user unit, a user station, a mobile station, a mobile station (MS), a mobile terminal (MT), a remote station, a remote terminal, a mobile device, a user terminal, a terminal device, a wireless communication device, a user agent, or a user apparatus. The terminal device in the embodiments of the present application can be a device that provides voice and / or data connectivity for a user, and can be used to connect people, things, and machines, such as household appliances, sensors, electronic tags, and the like with wireless connection functions. The terminal in the embodiments of the present application can be a wireless terminal in a smart home, a wireless terminal in an IWSN, a wireless terminal in smart logistics and smart warehousing, a wireless terminal in self driving, a wireless terminal in remote medical surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, and the like.

[0042] The network device in the embodiments of the present application can be a device for communicating with a terminal device. If the terminal is an electronic tag, the network device can be a reader / writer (for example, a reader / writer based on radio frequency identification (RFID) technology) for reading and writing the electronic tag. The network device can also be an access network device or a radio access network device, for example, the network device can be a base station. The network device in the embodiments of the present application can refer to a radio access network (RAN) node (or device) for accessing a terminal device to a wireless network. The base station can broadly cover various names in the following or be replaced by the following names, such as: Node B (NodeB), evolved Node B (eNB), next generation Node B (gNB), relay station, access point, transmitting and receiving point (TRP), transmitting point (TP), master station MeNB, auxiliary station SeNB, multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. The base station can be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof. The base station can also refer to a communication module, modem or chip for being arranged in the foregoing device or apparatus. The base station can also be a mobile switching center and a device for device-to-device (D2D), vehicle-to-everything (V2X), machine-to-machine (M2M) communication, a network side device in a 6G network, a device for a base station function in a future communication system, etc. The base station can support networks of the same or different access technologies. The embodiments of the present application do not limit the specific technology and specific device form adopted by the network device.

[0043] A base station can be fixed or mobile. For example, a helicopter or an unmanned aerial vehicle (UAV) can be configured to function as a mobile base station, and one or more cells can move according to the location of the mobile base station. In other examples, a helicopter or an unmanned aerial vehicle can be configured to function as a device that communicates with another base station.

[0044] In some deployments, the network device in the embodiments of the present application can refer to a CU or a DU, or the network device includes a CU and a DU. The gNB can also include an AAU.

[0045] The network device and the terminal device can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; can also be deployed on the water surface; and can also be deployed on aircraft, balloons and satellites in the air. The scenarios in which the network device and the terminal device are located are not limited in the embodiments of the present application.

[0046] It should be understood that all or part of the functions of the communication device in the present application can also be implemented by software functions running on hardware, or by virtualized functions instantiated on a platform (such as a cloud platform).

[0047] In some implementations, the terminal 120 can include an energy harvesting module 121 and a backscatter communication module 122. The energy harvesting module 121 and the backscatter communication module 122 will be described below in conjunction with FIGS. 2 to 4, and will not be described again here for brevity. In some cases, the terminal 120 can also include a low-power computing module 123. The low-power computing module 123 is configured to provide computing functions for the terminal, such as data processing and the like. In other cases, the terminal 120 can also include a sensor 124 configured to collect external information (such as ambient temperature, ambient humidity, and the like). In other cases, the terminal 120 can also include a memory 125 configured to store some information (such as external information collected by the above-mentioned sensor, or an article identifier, and the like).

[0048] The energy harvesting module 121 described above is configured to harvest energy. In some implementations, energy can be harvested through a wireless energy supply signal transmitted by the network device. The wireless energy supply signal can be a “radio frequency signal” transmitted by the network device, and therefore the energy harvesting module is also referred to as a “radio frequency energy harvesting module”.

[0049] Figure 2 illustrates one possible structure of the energy harvesting module. As shown in Figure 2, the energy harvesting module 121 can harvest the energy of the spatial electromagnetic wave of the radio frequency signal based on the principle of electromagnetic induction, and store the harvested energy in the capacitor C, i.e., the process of charging the capacitor C. When the charging process of the capacitor C is completed, the capacitor C can start discharging to provide energy for the terminal to work. For example, the discharging of the capacitor C can be used to drive the terminal to perform low-power demodulation on the data transmitted by the network device. For another example, the discharging of the capacitor C can be used to drive the terminal to modulate the data to be transmitted. For another example, the discharging of the capacitor C can be used to drive the sensor of the terminal to perform data acquisition. For another example, the discharging of the capacitor C can be used to drive the terminal to read the data in the memory 125, etc.

[0050] The backscattering communication module 122 described above is used for the terminal to perform backscattering communication with the network device. The principle of backscattering communication of the embodiments of the present application will be described below in conjunction with Figure 3. Referring to Figure 3, the terminal 120 receives the wireless signal transmitted by the network device 110, and modulates the wireless signal to load the information to be transmitted. Finally, the modulated signal is radiated from the antenna, and this information transmission process is called backscattering communication. The backscattering communication and the load modulation function are inseparable. The load modulation adjusts and controls the circuit parameters of the oscillation loop of the terminal according to the beat of the data stream, so that the size of the impedance and other parameters of the terminal change, thereby completing the modulation process. The load modulation technology mainly includes resistance load modulation and capacitance load modulation. In resistance load modulation, a resistance is connected in parallel with the load, and the resistance is turned on or off based on the control of the binary data stream, as shown in Figure 4 below. The on-off of the resistance will cause the change of the circuit voltage, so as to realize amplitude-shift keying (ASK) modulation, i.e., the modulation and transmission of the signal are realized by adjusting the amplitude of the backscattering signal of the terminal. Similarly, in capacitance load modulation, the on-off of the capacitance can realize the change of the circuit resonance frequency, and realize frequency-shift keying (FSK) modulation, i.e., the modulation and transmission of the signal are realized by adjusting the working frequency of the backscattering signal of the terminal.

[0051] In some implementations, other devices can also be arranged on the transport (TX) path of the network device 110, for processing the signal to be transmitted, such as an amplifier (AMP), etc. Other devices can also be arranged on the receive (RX) path of the network device 110, for processing the received signal, such as a low noise amplifier (LNA), etc.

[0052] In some implementations, terminal 120 may be equipped with an energy harvesting unit for harvesting energy from the wireless power supply signal sent by the network device. Of course, terminal 120 may also include a logic processing unit to perform corresponding calculation functions.

[0053] It should be noted that, whether it is network device 110 or terminal 120, Figure 3 only shows the connection structure of the signal processing circuit as an example. The processing circuit of network device 110 and / or terminal 120 may contain other components, and this application embodiment does not specifically limit this.

[0054] Typically, load modulation can be implemented using either resistive load modulation or capacitive load modulation. Figure 4 shows a circuit diagram of a terminal based on resistive load modulation technology. It should be noted that the circuit in Figure 4 implements load modulation in a manner similar to existing circuits for implementing load modulation. For simplicity, the functions of resistors R2 and R3, capacitors C1 and C2, and inductors L1 and L2 shown in Figure 4 will not be elaborated further.

[0055] In resistive load modulation, a resistor R can be connected in parallel with the load. L The switch S can be controlled based on binary data stream to achieve the resistor R. L The resistor R is switched on or off. L Switching the circuit on and off will cause changes in the circuit voltage, and the changes in the circuit voltage can control the amplitude of the backscattered signal of the terminal, thereby achieving modulation of the backscattered signal, that is, ASK modulation of the backscattered signal.

[0056] Similarly, in capacitive load modulation, the switching of the capacitor can be controlled based on the binary data stream to change the circuit resonant frequency, thereby changing the operating frequency of the backscattered signal to achieve FSK modulation.

[0057] As described above, the terminal can use load modulation to modulate the incoming signal (i.e., the signal sent by the network device), thereby realizing the backscatter communication process. Therefore, the terminal in backscatter communication typically has the following advantages.

[0058] One advantage is that since the terminal does not need to actively transmit signals, there is no need to construct a complex radio frequency (RF) path. For example, the RF path does not need to include power amplifiers (PAs) or RF filters, thus reducing the cost and size of the terminal.

[0059] The second advantage is that since the terminal does not need to actively generate high-frequency signals, it does not need a high-frequency crystal oscillator, thus reducing the cost and size of the terminal.

[0060] Advantage three, since the terminal can communicate with the network device by using backscattering technology, the terminal consumes less energy when communicating, and even does not need to consume its own energy.

[0061] Classification of A-IoT devices

[0062] In some scenarios, A-IoT devices can be classified into three categories based on their energy sources and the way energy is used: passive A-IoT devices, semi-passive A-IoT devices, and active A-IoT devices.

[0063] I. Passive A-IoT devices

[0064] A passive A-IoT device usually does not need to be equipped with a battery. When the A-IoT device is close to the network device, the A-IoT device is in the near field formed by the antenna radiation of the network device, at this time, the antenna of the A-IoT device can generate induced current through electromagnetic induction, and the induced current can supply energy to the A-IoT device to achieve demodulation of the received signal, and / or modulation, coding, and other work on the to-be-transmitted signal. In some implementations, the above passive A-IoT device can be an electronic tag, and correspondingly, the network device can be a reader / writer of a radio frequency identification (RFID) system, for reading the content in the electronic tag and / or for changing the content in the electronic tag.

[0065] II. Semi-passive A-IoT devices

[0066] A semi-passive A-IoT device also does not install a conventional battery itself, but can use an energy harvesting module 121 to harvest wireless wave energy, and store the harvested energy in an energy storage unit (such as a capacitor). After the energy storage unit obtains energy, it can supply energy to the A-IoT device to achieve demodulation of the received signal, and / or modulation, coding, and other work on the to-be-transmitted signal.

[0067] III. Active A-IoT devices

[0068] An active A-IoT device can be equipped with a battery. The battery can supply energy to the A-IoT device to achieve demodulation of the received signal, and / or modulation, coding, and other work on the to-be-transmitted signal. However, when the A-IoT device communicates by using backscattering technology, the A-IoT device does not need to consume the energy of the battery. Therefore, for such an A-IoT device, "zero power consumption" mainly refers to the scenario in which the terminal communicates by using backscattering technology.

[0069] In some implementations, the active A-IoT device described above can be an electronic tag, and the network device can be an RFID reader, at which time the built-in battery can supply power to the RFID chip in the A-IoT device to increase the read-write distance between the RFID reader and the electronic tag. On the other hand, the built-in battery can supply power to the RFID chip in the A-IoT device to shorten the read-write latency of the electronic tag by the RFID reader, which is conducive to improving the reliability of communication.

[0070] In other scenarios, A-IoT devices can be divided into three categories based on the type of transmitter, including the following types: backscatter-based A-IoT devices, active transmitter-based A-IoT devices, and A-IoT devices with both backscatter and active transmitters.

[0071] 1) Backscatter-based A-IoT devices.

[0072] Such A-IoT devices use backscatter to transmit uplink data as described above. Such devices do not have an active transmitter for active transmission, but only have a backscatter transmitter. Therefore, when such terminals transmit data, the network device needs to provide a carrier, and the terminal device performs backscatter based on the carrier to achieve data transmission.

[0073] 2) Active transmitter-based A-IoT devices.

[0074] Such A-IoT devices use active transmitters with active transmission capabilities to transmit uplink data, so such A-IoT devices can transmit data using their own active transmitters when transmitting data, without the need for the network device to provide a carrier. The active transmitter suitable for A-IoT devices can be, for example, an ultra-low-power ASK, an ultra-low-power FSK transmitter, etc. Based on the current implementation, the overall power consumption of such a transmitter can be reduced to 400-600 uw when transmitting a 100 uw signal.

[0075] 3) A-IoT devices with both backscatter and active transmitters.

[0076] Such terminals can support both backscatter and active transmitters. The terminal can determine which type of uplink signal transmission to use based on different situations (such as the amount of power, available environmental energy), or based on the scheduling of the network device: whether to use backscatter or use an active transmitter for active transmission.

[0077] Low-power Internet of Things Based on Cellular Networks

[0078] The cellular Internet of Things is booming, and 3GPP has standardized Internet of Things technologies such as narrowband Internet of Things (NB-IoT), machine type communication (MTC), reduced capability (RedCap), etc., but there are still many Internet of Things communication needs in various scenarios that cannot be met using existing technologies, for example: harsh communication environments (high temperature, extremely low temperature, high humidity, high pressure, high radiation, or high-speed movement, etc.), extremely small terminal form factor requirements, extremely low cost, etc.

[0079] Therefore, in order to cover these unmet Internet of Things communication needs, and at the same time to further fully utilize the communication capabilities of wireless cellular networks, and to achieve the effect of Internet of Everything, ultra-low-cost, extremely small size, battery-free / maintenance-free Internet of Things is also needed in cellular networks, and Ambient Internet of Things can exactly meet this demand.

[0080] Based on the discussion of A-IoT application scenarios in 3GPP system architecture (SA) 1, A-IoT can be used in at least the following four scenarios:

[0081] · Object recognition, such as logistics, production line product management, supply chain management.

[0082] · Environmental monitoring, such as temperature, humidity, and harmful gas monitoring of working and natural environments.

[0083] · Positioning, such as indoor positioning, intelligent lost item finding, and production line item positioning.

[0084] · Intelligent control, such as intelligent control of various appliances in smart homes (turning on / off air conditioners, adjusting temperature), and intelligent control of various facilities in agricultural greenhouses (automatic irrigation, fertilization).

[0085] In the low-power Internet of Things based on a cellular network, A-IoT devices can directly receive carriers, data or signals from a base station and send or backscatter data or signals to the base station, as shown in FIG. 5 (referred to as the first topology). Alternatively, communication between A-IoT and the base station is achieved through an intermediate node, in which case the intermediate node sends carriers, data or signals to the A-IoT device, the A-IoT device sends or backscatters data or signals to the intermediate node, and the intermediate node sends the received data or signals to the base station, as shown in FIG. 6 (referred to as the second topology).

[0086] From the foregoing description, it can be known that the passive AIoT device does not need to be built-in battery, only a small energy storage device is configured, energy is collected from the surrounding environment such as sunlight, wind, radio frequency signals, etc., and stored in the energy storage device itself. When communication is needed, short-time and small amount of data transmission is performed with the network. In order to save power consumption, the passive AIoT device does not need to keep downlink synchronization with the cellular wireless communication network when it does not transmit data, only when it needs to transmit data, downlink synchronization is performed, paging messages are received, etc., and after completing data transmission, it is immediately powered off. In the embodiments of the present application, energy can also be referred to as "electricity" or "electric energy".

[0087] FIG. 7 is a graph of energy accumulation of the AIoT device, the horizontal coordinate is time, and the vertical coordinate is the energy level of the AIoT device. In the initial state, the AIoT device has no energy (0), and as time goes on, the AIoT device collects energy from the environment, that is, uses energy pulses to charge, but there will also be a small amount of energy leakage during charging.

[0088] When the energy accumulation of the AIoT device reaches a receivable level, downlink data can be received; when the energy accumulation of the AIoT device reaches a transmittable level, uplink data can be transmitted. As shown in FIG. 7, the AIoT device requires the lowest energy in the reserved state, which is used to save data in the cache, etc., the energy required for receiving downlink data is second, and the energy required for transmitting uplink data is the highest.

[0089] The traditional communication process is designed for active terminal devices, although the power saving of the terminal device is also considered when designing the process, but the energy supply of the most power-saving NB-IoT in the existing network is much larger than that of AIoT. Therefore, it is necessary to redesign the communication process for AIoT devices.

[0090] In the conventional technology, except for the service wake-up paging in the multimedia broadcast multicast service (MBMS), system message block (SIB) change, etc., other paging messages are all for a single terminal device (per UE), and the number of terminal devices in the AIoT device is too large, so there will be a large number of processes for the terminal devices of the AIoT. In order to save the wireless resource consumption caused by the paging message and simplify the paging process on the network side, SA2 introduces a group-based paging, as shown in FIG. 8. Specifically, the paging message between the access and mobility management function (AMF) network element and the base station is changed to be transmitted based on the group of each terminal device.

[0091] In some scenarios, the group-based paging is also referred to as group paging, and the corresponding group is referred to as a "paging group". The paging group here is defined by an application layer or a core network, and for a base station, the paging group has two treatments: visible and invisible. The base station is visible to the paging group, which means that the base station can map the paging group into a terminal device identity list (for example, a UE identity (ID) list), so it can reuse the format of the existing air interface paging message and send a paging message to a single terminal device at each terminal device corresponding paging occasion. The base station is invisible to the paging group, which means that the base station cannot map the paging group into a terminal device identity list, so it cannot reuse the air interface paging mechanism.

[0092] As shown in FIG. 8, the flow in the upper solid line box represents terminal device-based paging, and the AMF sends a paging message to the terminal device through the base station. The terminal device 1 and the terminal device 2 both receive the paging message, but the paging object is the terminal device 1, so only the terminal device 1 responds to the paging message and establishes a connection with the network device. The flow in the lower dashed line box represents group-based paging, and the AMF sends a paging message to the terminal device through the base station. The paging message is used to page the first paging group, and the terminal device 1 and the terminal device 2 both belong to the first paging group, so they both respond to the paging message and establish a connection with the network device.

[0093] As can be seen from the above, in some scenarios, a terminal device (for example, an AIoT device) can only perform a sending or receiving operation after collecting a certain amount of energy. Conversely, when the terminal device does not collect enough energy, the terminal device cannot perform a sending or receiving operation. However, the traditional paging mechanism is designed based on the working assumption that the terminal device can certainly respond to the first paging message, which may not be applicable to the terminal device in this scenario.

[0094] For example, in the traditional paging scheme, for downlink data, the terminal device will listen to the paging message at the paging occasion. If there is downlink data for the terminal device, the network device (for example, a base station) will send a paging message at the paging occasion of the terminal device. After receiving the paging message, the terminal device will establish a connection with the network device to receive the downlink data. For the terminal device, the above process is designed based on two working assumptions:

[0095] Assumption 1: As long as there is a paging message for itself, it means that the network device side must have downlink data for the terminal device

[0096] Assumption 2: As long as the terminal device receives the paging message, it can establish a connection with the network, and the energy of the terminal device can certainly support the behavior of "establishing a connection".

[0097] If the terminal device is the AIoT device in the above, the above two working assumptions do not necessarily hold. For assumption 1, 3GPP has decided that the network device can send a paging message to the terminal device without downlink data, and this process can be used for asset inventory. For assumption 2, since the power consumption of sending is much higher than that of receiving, the fact that the AIoT device can receive the paging message does not mean that the AIoT device can necessarily initiate the random access, connection establishment and the like process. Therefore, the traditional paging mechanism is not suitable for AIoT devices.

[0098] To solve the above problems, the embodiment of the present application provides a wireless communication method. The network device sends a first paging message to the terminal device, and the terminal device determines to respond or not to respond to the first paging message, which helps to improve the flexibility of data transmission.

[0099] The wireless communication method of the embodiment of the present application is described below in combination with FIG. 9. FIG. 9 is a schematic flowchart of the wireless communication method of the embodiment of the present application. The method shown in FIG. 9 includes steps S910 and S920.

[0100] In step S910, the network device sends a first paging message to the terminal device. Correspondingly, the terminal device can listen to the first paging message.

[0101] In some implementations, the first paging message is transmitted in a first paging window, that is, in the first paging window, the network device sends the first paging message to the terminal device. Correspondingly, the terminal device can listen to the first paging message in the first paging window.

[0102] In some implementations, the length of the first paging window can ensure that the energy accumulated by the terminal device in the first paging window can be used to receive the first paging message.

[0103] In some implementations, the length of the first paging window is associated with one or more of the following: the way in which the terminal device obtains energy, the efficiency of the terminal device obtaining energy.

[0104] In some implementations, the terminal device obtains energy in one or more ways. For example, the terminal device can obtain energy through a solar panel or wind energy, and the length of the first paging window corresponding to the terminal device can be determined based on these two energy obtaining ways.

[0105] In some implementations, different terminal devices can obtain energy in different ways, and accordingly, the lengths of the first paging windows of different terminal devices can also be different. For example, terminal device 1 obtains energy through a solar panel, terminal device 2 obtains energy through wind energy, and terminal device 1 obtains energy faster than terminal device 2. Accordingly, terminal device 1 can be configured with a shorter first paging window, and terminal device 2 can be configured with a longer first paging window. Of course, in the embodiments of the present application, the ways in which different terminal devices obtain energy can also be the same.

[0106] In some implementations, the efficiency of energy obtained by a terminal device can have one or more values, and accordingly, the terminal device can be configured with one or more lengths of the first paging window. For example, a terminal device obtains energy through a solar panel, and the efficiency of energy obtained by the terminal device changes over time. During the day, the terminal device obtains energy through the solar panel with high efficiency, and the terminal device can accumulate enough energy for receiving a first paging message in a short time. Accordingly, the terminal device is configured with a shorter first paging window during the day. At night, the terminal device obtains energy through the solar panel with low efficiency, and the terminal device needs a longer time to accumulate enough energy for receiving a first paging message. Accordingly, the terminal device is configured with a longer first paging window at night. For another example, also during the day, when the weather is sunny, the terminal device obtains energy through the solar panel with high efficiency. Accordingly, the terminal device is configured with a shorter first paging window. When it rains, the terminal device obtains energy through the solar panel with low efficiency. Accordingly, the terminal device is configured with a longer first paging window.

[0107] In some implementations, the length of the first paging window is configured by a network device. For example, the network device is a base station, and the base station configures the length of the first paging window for a terminal device.

[0108] In some implementations, a network device can configure a terminal device with multiple lengths of the first paging window.

[0109] In some implementations, the multiple lengths of the first paging window described above can be configured by a network device at one time, and accordingly, a terminal device determines which length of the first paging window to use by itself. For example, a terminal device obtains energy through a solar panel, and a network device configures the terminal device with multiple lengths of the first paging window according to an external environment (e.g., overcast, rainy, and sunny weather). The terminal device decides which length of the first paging window to use by itself according to the change in the environment.

[0110] In some embodiments, the length of the first paging window can be configured by the network device multiple times. For example, the terminal device obtains energy through a solar panel. When the weather is sunny, the network device configures a length of a first paging window for the terminal device. When the environment changes (for example, the weather changes from sunny to cloudy), the network device configures a length of a first paging window for the terminal device again.

[0111] In some embodiments, the network device can obtain the manner in which the terminal device obtains energy and / or the efficiency of the terminal device obtaining energy from the first network element. For example, the first network element can be a user database and / or an application server.

[0112] In some embodiments, the manner in which the terminal device obtains energy and / or the efficiency of the terminal device obtaining energy can be reported by the terminal device to the network device.

[0113] In some embodiments, the length of the first paging window is at least enough for the terminal device to accumulate energy to receive the first paging message. For example, referring to FIG. 10, at the beginning of the first paging window, the terminal device 1 does not have enough energy to receive the message, and the terminal device 1 can not listen to the first paging message. The terminal device 1 continues to accumulate energy. When the energy accumulation can support receiving the message, the terminal device 1 listens to the first paging message. If the terminal device 1 finds a first paging message for itself, the terminal device 1 can receive the first paging message.

[0114] In the embodiments of the present application, the first paging window can include one or more paging opportunities, and the first paging message is carried in the paging opportunity. That is, in the first paging window, the network device can send one or more first paging messages to the terminal device.

[0115] In the embodiments of the present application, the content of the plurality of first paging messages is not limited. For example, the content of the plurality of first paging messages can be the same. For another example, the content of the plurality of first paging messages can be different.

[0116] In some embodiments, the length of the first paging window can ensure that the terminal device has enough energy to receive the first paging message at least once in the paging opportunity in the first paging window, that is, the length of the first paging window can ensure that the terminal device receives the first paging message at least once in the first paging window.

[0117] In some embodiments, the first paging message carries information for indicating a paging cause.

[0118] In some embodiments, the information for indicating the paging cause is also referred to as an "additional indication".

[0119] In some implementations, the paging cause includes one or more of the following: downlink data to be transmitted; whether the terminal device has uplink data to be transmitted; and inventory of the terminal device.

[0120] In some implementations, the downlink data to be transmitted can be understood as that the network device has downlink data to be transmitted to the terminal device. For example, the access network device (e.g., a base station) stores downlink data to be transmitted to the terminal device. For another example, the core network element (e.g., a UPF) stores downlink data to be transmitted to the terminal device.

[0121] In some implementations, if the paging cause includes the downlink data to be transmitted, the first paging message can indicate one or more of the following to the terminal device: the amount of the downlink data to be transmitted; the range of the amount of the downlink data to be transmitted; and the remaining time of the downlink data to be transmitted from a transmission latency budget. Accordingly, the terminal device can determine whether to complete the reception of the downlink data to be transmitted based on the related information of the downlink data to be transmitted and other information (e.g., the current radio signal quality of the terminal device).

[0122] In some implementations, if the paging cause includes the downlink data to be transmitted, the first paging message can indicate one or more of the following to the terminal device: whether there is target data to be transmitted; the amount of the target data; the range of the amount of the target data; and the remaining time of the target data from a transmission latency budget.

[0123] In some implementations, the above-mentioned target data can be understood as data that is overdue before a second paging window, the second paging window being the first paging window after the first paging window.

[0124] In some implementations, the target data is also referred to as “downlink urgent data”, i.e., downlink data that is overdue before the second paging window.

[0125] In some implementations, if the paging cause includes whether the terminal device has uplink data to be transmitted, it can be understood that the network device does not have downlink data to be transmitted, and the terminal device responds to the first paging message if it has uplink data to be transmitted, and does not respond to the first paging message if it does not have uplink data to be transmitted.

[0126] In some implementations, if the paging cause includes inventory of the terminal device, it can be understood that the network device expects the terminal device to report an identity.

[0127] Continuing to refer to FIG. 9, in step S920, the terminal device determines whether to respond to or not respond to the first paging message.

[0128] The related scheme of the terminal device determining whether to respond to or not respond to the first paging message is described below in conjunction with Embodiment 1.

[0129] Embodiment 1: The terminal device determines to respond or not to respond to the first paging message

[0130] In some implementations, the terminal device determines to respond or not to respond to the first paging message based on the second information.

[0131] In some implementations, the second information is used to indicate one or more of: energy of the terminal device, wireless signal quality of the terminal device, data amount of data to be transmitted.

[0132] In some implementations, the energy of the terminal device can be understood as the current energy of the terminal device.

[0133] In some implementations, the wireless signal quality of the terminal device can be understood as the current wireless signal quality of the terminal device.

[0134] In some implementations, the wireless signal quality of the terminal device is also referred to as "wireless signal strength".

[0135] In the embodiments of the present application, the manner of indicating the wireless signal quality of the terminal device is not limited, for example, the wireless signal quality of the terminal device can be one or more of reference signal receiving power (RSRP), reference signal receiving quality (RSRQ), reference signal received signal-to-noise ratio (RSSNR), received signal strength indicator (RSSI), reference signal interference power (RSIP), received signal code power (RSCP), and the like, which can indicate the wireless signal quality.

[0136] In some implementations, the data amount of data to be transmitted can be understood as the data amount of uplink data to be transmitted and / or the data amount of downlink data to be transmitted.

[0137] In some implementations, the data amount of downlink data to be transmitted can be understood as the data amount of data that is about to arrive at the terminal device. For example, the network device side is about to send downlink data to the terminal device, the downlink data is about to arrive at the terminal device, and the data amount of the downlink data is the data amount of the downlink data to be transmitted.

[0138] In some implementations, the data amount of the downlink data to be transmitted can be indicated to the terminal device by the first paging message.

[0139] In some implementations, the data amount of the uplink data to be transmitted can be understood as the data amount in the buffer of the terminal device, or the data amount that has arrived at the terminal device. For example, the data amount that has arrived at the access layer of the terminal device is the data amount of the uplink data to be transmitted.

[0140] In some implementations, the data amount of the uplink data to be transmitted can be determined by the application layer of the terminal device. For example, the first paging message is used for inventory of the terminal device, and the application layer of the terminal device can determine the data amount of the uplink data to be transmitted based on the type, model, and the like of the terminal device being inventoried.

[0141] In some implementations, the second information is used to indicate the energy of the terminal device, and the terminal device determines whether to respond to or not respond to the first paging message based on the energy of the terminal device. It can be understood that, if the first paging message includes a dedicated identifier allocated to the terminal device, and the energy of the terminal device supports responding to the inventory, the terminal device can respond to the first paging message. For example, the first paging message carries a dedicated identifier (such as a random access occasion and / or a random access code) of the terminal device, and the terminal device only needs to respond to the first paging message to initiate random access, accordingly, the network device can determine that the terminal device has responded to the inventory through the random access occasion and / or the random access code, and does not need to establish a connection with the network device, in which case the terminal device requires less energy.

[0142] In some implementations, the second information is used to indicate the energy of the terminal device, and the terminal device determines whether to respond to or not respond to the first paging message based on the energy of the terminal device. It can be understood that, if the first paging message does not include a dedicated identifier allocated to the terminal device, and the energy of the terminal device supports responding to the inventory and establishing a connection with the network device, the terminal device can determine to respond to the first paging message. For example, the first paging message does not carry a dedicated identifier of the terminal device (such as the first paging message only indicates that the terminal devices belonging to a paging group A are requested to respond), and the terminal device needs to establish a connection with the network device and then respond to the inventory (i.e., report the identity), in which case the terminal device requires more energy.

[0143] In some implementations, the second information is used to indicate the energy of the terminal device, and the terminal device determines whether to respond to or not respond to the first paging message based on the energy of the terminal device. It can be understood that, if the first paging message does not include a dedicated identifier allocated to the terminal device, and the energy of the terminal device supports responding to the inventory and establishing a connection with the network device, the terminal device can determine to respond to the first paging message. For example, the first paging message does not carry a dedicated identifier of the terminal device (such as the first paging message only indicates that the terminal devices belonging to a paging group A are requested to respond), and the terminal device needs to establish a connection with the network device and then respond to the inventory (i.e., report the identity), in which case the terminal device requires more energy.

[0144] In some embodiments, the second information is used to indicate the energy of the terminal device, and the terminal device determines whether to respond to or not respond to the first paging message based on the energy of the terminal device. It can be understood that, if the first paging message does not include the dedicated identifier allocated to the terminal device, but includes the identifier of the paging group to which the terminal device belongs, and the energy of the terminal device does not support responding to the inventory and establishing a connection with the network device, the terminal device can not respond to the first paging message. For example, the first paging message does not carry the dedicated identifier of the terminal device, but includes the identifier of the paging group to which the terminal device belongs, and the terminal device needs to establish a connection with the network device and then respond to the inventory. However, the energy of the terminal device does not support responding to the inventory and establishing a connection with the network device, so the terminal device can not respond to the first paging message.

[0145] In some embodiments, the second information is used to indicate the energy of the terminal device and the data amount of the data to be transmitted, and the terminal device determines whether to respond to or not respond to the first paging message based on the energy of the terminal device and the data amount of the data to be transmitted. It can be understood that, if the energy of the terminal device supports the data amount of the data to be transmitted, the terminal device can respond to the first paging message. For example, referring to FIG. 10, when the terminal device 1 accumulates enough energy to receive a message, the terminal device 1 receives the first paging message. If the energy of the terminal device 1 supports the data amount of the data to be transmitted, the terminal device 1 can respond to the first paging message (for example, establish a connection with the network device and transmit data).

[0146] In some embodiments, the data amount of the data to be transmitted can be the data amount of the uplink data to be transmitted and / or the data amount of the downlink data to be transmitted. For example, the terminal device has uplink data to be transmitted, and the energy of the terminal device supports the data amount of the data to be transmitted, which is greater than or equal to the data amount of the uplink data to be transmitted. The terminal device can respond to the first paging message. For another example, the terminal device learns that the network device side has downlink data to be transmitted, and the energy of the terminal device supports the data amount of the data to be received, which is greater than or equal to the data amount of the downlink data to be transmitted. The terminal device can respond to the first paging message.

[0147] In some implementations, the second information is used to indicate the energy of the terminal device and the data amount of the data to be transmitted, and the terminal device determines whether to respond to or not respond to the first paging message based on the energy of the terminal device and the data amount of the data to be transmitted. It can be understood that, if the data amount that can be transmitted by the energy of the terminal device is less than the data amount of the data to be transmitted, the terminal device can not respond to the first paging message. For example, referring to FIG. 10, when the terminal device 1 accumulates enough energy to receive a message, the terminal device 1 receives the first paging message. If the data amount that can be transmitted by the energy accumulated by the terminal device 1 is less than the data amount of the data to be transmitted, the terminal device 1 can not respond to the first paging message (for example, not to establish a connection with the network device). For another example, the terminal device has uplink data to be transmitted, and the data amount that can be transmitted by the energy accumulated by the terminal device is less than the data amount of the uplink data to be transmitted. The terminal device can not respond to the first paging message. For another example, the terminal device learns that there is downlink data to be transmitted on the network device side, and the data amount that can be received by the energy of the terminal device is less than the data amount of the downlink data to be transmitted. The terminal device can not respond to the first paging message.

[0148] In some implementations, the second information is used to indicate the energy of the terminal device, the wireless signal quality of the terminal device, and the data amount of the data to be transmitted, and the terminal device determines whether to respond to or not respond to the first paging message based on the energy of the terminal device, the wireless signal quality of the terminal device, and the data amount of the data to be transmitted. It can be understood that, under the current energy and the current wireless signal quality of the terminal device, if the data amount that can be transmitted by the terminal device is greater than or equal to the data amount of the data to be transmitted, the terminal device can respond to the first paging message. For example, referring to FIG. 10, when the terminal device 1 accumulates enough energy to receive a message, the terminal device 1 receives the first paging message. If the data amount that can be transmitted by the terminal device under the energy accumulated by the terminal device 1 and the current wireless signal quality is greater than or equal to the data amount of the data to be transmitted, the terminal device 1 can respond to the first paging message (for example, establish a connection with the network device). For another example, the terminal device has uplink data to be transmitted, and the data amount that can be transmitted by the terminal device under the energy accumulated by the terminal device and the current wireless signal quality is greater than or equal to the data amount of the uplink data to be transmitted. The terminal device can respond to the first paging message. For another example, the terminal device learns that there is downlink data to be transmitted on the network device side, and the data amount that can be received by the terminal device under the energy accumulated by the terminal device and the current wireless signal quality is greater than or equal to the data amount of the downlink data to be transmitted. The terminal device can respond to the first paging message.

[0149] In some embodiments, the second information is used to indicate the energy of the terminal device, the wireless signal quality of the terminal device, and the data amount of the data to be transmitted, and the terminal device determines to respond or not to respond to the first paging message based on the energy of the terminal device, the wireless signal quality of the terminal device, and the data amount of the data to be transmitted. It can be understood that, under the current energy and the current wireless signal quality of the terminal device, if the data amount that the terminal device supports to transmit is less than the data amount of the data to be transmitted, the terminal device can not respond to the first paging message. For example, referring to FIG. 10, when the terminal device 1 accumulates enough energy to receive a message, the terminal device 1 receives the first paging message. If the data amount that the terminal device supports to transmit is less than the data amount of the data to be transmitted under the energy accumulated by the terminal device 1 and the current wireless signal quality, the terminal device 1 can not respond to the first paging message (for example, not to establish a connection with the network device). For another example, the terminal device has uplink data to be transmitted, and the data amount that the terminal device supports to transmit is less than the data amount of the uplink data to be transmitted under the energy accumulated by the terminal device and the current wireless signal quality, and the terminal device can not respond to the first paging message. For another example, the terminal device learns that there is downlink data to be transmitted on the network device side, and the data amount that the terminal device supports to receive is less than the data amount of the downlink data to be transmitted under the energy accumulated by the terminal device and the current wireless signal quality, and the terminal device can not respond to the first paging message.

[0150] In some embodiments, if the terminal device determines to respond to the first paging message, the terminal device sends response information for the first paging message to the network device, and the transmission of the response information is determined based on the energy of the terminal device.

[0151] In some embodiments, the transmission of the response information is determined based on the energy of the terminal device. It can be understood that, the terminal device determines whether to respond to the first paging message and the manner of responding to the first paging message based on the energy of the terminal device, and then determines the transmission of the response information based on the manner of responding to the first paging message. For example, the first paging message carries a dedicated identifier of the terminal device, and the energy of the terminal device supports responding to the inventory, the terminal device determines to respond to the first paging message and the manner of responding to the first paging message is to initiate random access, and then determines the transmission of the response information is to send a message (for example, a message 1 (Msg1)) for initiating random access to the network device. For another example, the first paging message does not carry the dedicated identifier of the terminal device, but includes an identifier of a paging group to which the terminal device belongs, and the energy of the terminal device supports responding to the inventory and establishing a connection with the network device, the terminal device determines to respond to the first paging message, and the manner of responding to the first paging message is to establish a connection with the network device, and then determines the transmission of the response information is to send a message (for example, a message for establishing a radio resource control (RRC) connection) for establishing a connection with the network device to the network device.

[0152] To further avoid waste of resources and energy, in some implementations, if the terminal device responds to the first paging message, the terminal device determines whether to establish a connection with the network device based on third information.

[0153] The following describes a related scheme in which the terminal device determines whether to establish a connection with the network device based on third information, in conjunction with Embodiment 2.

[0154] Embodiment 2: The terminal device determines whether to establish a connection with the network device based on third information

[0155] In some implementations, the third information includes one or more of the following: energy of the terminal device; whether the to-be-transmitted data includes target data; whether the terminal device supports completing transmission of the to-be-transmitted data.

[0156] In some implementations, the to-be-transmitted data includes target data, that is, the terminal device has downlink urgent data to receive.

[0157] In some implementations, the target data can be indicated by the first paging message. For example, the first paging message indicates to the terminal device that there is target data to be transmitted, and the data amount of the target data.

[0158] In some implementations, establishing a connection with the network device can be understood as establishing an RRC connection.

[0159] In some implementations, whether the terminal device supports completing transmission of the to-be-transmitted data can be understood as whether the terminal device supports completing transmission of to-be-transmitted uplink data and / or downlink data. In some implementations, whether the terminal device supports completing transmission of the to-be-transmitted data is determined based on one or more of the following: energy of the terminal device, wireless signal quality of the terminal device, data amount of the to-be-transmitted data, and buffer amount of the terminal device.

[0160] It should be noted that the foregoing descriptions of the energy of the terminal device, the wireless signal quality of the terminal device, and the data amount of the to-be-transmitted data also apply to this embodiment, and are not repeated here.

[0161] In some implementations, the buffer amount of the terminal device can be understood as the amount of data that can be stored in the buffer of the terminal device.

[0162] In some implementations, whether the terminal device supports completing transmission of the to-be-transmitted data is determined based on the energy of the terminal device and the data amount of the to-be-transmitted data. Therefore, whether the terminal device supports completing transmission of the to-be-transmitted data can be understood as whether the energy of the terminal device supports completing transmission of the to-be-transmitted data.

[0163] In some implementations, whether the terminal device supports completing transmission of the to-be-transmitted data is determined based on the buffer size of the terminal device and the data size of the to-be-transmitted data. Therefore, whether the terminal device supports completing transmission of the to-be-transmitted data can be understood as whether the buffer of the terminal device supports completing transmission of the to-be-transmitted data.

[0164] In some implementations, whether the terminal device supports completing transmission of the to-be-transmitted data is determined based on the energy of the terminal device, the wireless signal quality of the terminal device, and the data size of the to-be-transmitted data. Therefore, whether the terminal device supports completing transmission of the to-be-transmitted data can be understood as whether the current energy and the current wireless signal quality of the terminal device support transmission of the data size of all the to-be-transmitted data.

[0165] Implementation 2-1: If the to-be-transmitted data includes target data, the terminal device determines whether to establish a connection with the network device based on the energy of the terminal device.

[0166] In some implementations, the terminal device determines whether to establish a connection with the network device based on the energy of the terminal device, which can be understood as follows: if the energy of the terminal device supports transmission of the target data, the terminal device determines to establish a connection with the network device; and if the energy of the terminal device does not support transmission of the target data, the terminal device determines not to establish a connection with the network device.

[0167] In some implementations, if the to-be-transmitted data includes target data and the terminal device determines to establish a connection with the network device, the terminal device preferentially transmits the target data. Accordingly, the terminal device can first transmit the target data, and then, within the range allowed by the energy of the terminal device, transmit non-target data in the to-be-transmitted data. For example, the to-be-transmitted data includes target data and other uplink data to be transmitted, and after establishing a connection with the network device, the terminal device can preferentially transmit the target data. If the energy of the terminal device supports transmission of all or part of the other uplink data to be transmitted, the terminal device can transmit all or part of the other uplink data to be transmitted; and if the energy of the terminal device does not support transmission of the other uplink data to be transmitted, the terminal device can not transmit the other uplink data to be transmitted.

[0168] Implementation 2-2: If the to-be-transmitted data does not include target data, the terminal device determines whether to establish a connection with the network device based on whether the terminal device supports completing transmission of the to-be-transmitted data. For example, if the to-be-transmitted data does not include target data, if the terminal device supports completing transmission of the to-be-transmitted data, the terminal device determines to establish a connection with the network device; and if the terminal device does not support completing transmission of the to-be-transmitted data, the terminal device determines not to establish a connection with the network device.

[0169] In a third implementation of the second aspect, the terminal device determines whether to establish the connection with the network device based on whether there is the first reason if the terminal device does not support completing the transmission of the to-be-transmitted data.

[0170] In some implementations, the first reason is referred to as “other reasons for which the connection cannot be established”.

[0171] In some implementations, the terminal device determines whether to establish the connection with the network device based on whether there is the first reason, which can be understood as that the terminal device determines not to establish the connection with the network device if there is the first reason, and the terminal device determines to establish the connection with the network device if there is not the first reason.

[0172] In some implementations, the first reason is used to indicate that the terminal device judges that there will be uplink data arriving soon, and the terminal device hopes to complete the transmission of the to-be-transmitted data and the new uplink data at one time.

[0173] In another implementation, the first reason is used to indicate that the terminal device judges that the wireless signal quality will be deteriorated soon, and once deteriorated, the terminal device cannot complete the transmission of the to-be-transmitted data.

[0174] In a fourth implementation of the second aspect, the terminal device determines whether to establish the connection with the network device based on whether the to-be-transmitted data includes uplink emergency data or target data if the terminal device does not support completing the transmission of the to-be-transmitted data.

[0175] In some implementations, the uplink emergency data can be understood as to-be-transmitted uplink data that will be timed out soon.

[0176] In some implementations, the terminal device determines whether to establish the connection with the network device based on whether the to-be-transmitted data includes uplink emergency data or target data, which can be understood as that the terminal device determines to establish the connection with the network device if the to-be-transmitted data includes uplink emergency data or target data, and the terminal device determines whether to establish the connection with the network device by itself if the to-be-transmitted data does not include uplink emergency data or target data.

[0177] In some implementations, the terminal device determines whether to establish the connection with the network device based on whether the to-be-transmitted data includes uplink emergency data or target data if the terminal device does not support completing the transmission of the to-be-transmitted data.

[0178] In some implementations, if the terminal device determines to establish the connection with the network device and completes the transmission of the to-be-transmitted data within the first paging window, the terminal device can stop monitoring the first paging message. For example, referring to FIG. 10, within the first paging window, the terminal device receives the first paging message, determines to respond to the first paging message, and determines to establish the connection with the network device. Then, the terminal device establishes the connection with the network device within the first paging window and completes the transmission of the to-be-transmitted data. At this time, still within the first paging window, the terminal device can stop monitoring the first paging message, and even can be powered off.

[0179] The above describes various schemes in which the terminal device determines whether to establish the connection with the network device based on the third information in combination with Embodiment 2. In some scenarios, the above various schemes can be used alone. In other scenarios, the above various schemes can be used in combination.

[0180] For ease of understanding, the following describes a scheme in which the various schemes in Embodiment 2 are used in combination in combination with FIG. 11. FIG. 11 includes steps S1101 to S1111.

[0181] It is assumed that the terminal device determines to respond to the first paging message, and the first paging message indicates the to-be-transmitted downlink data and whether the to-be-transmitted data includes the target data.

[0182] In step S1101, the terminal device determines to respond to the first paging message.

[0183] After the terminal device determines to respond to the first paging message, the terminal device can determine whether to establish the connection with the network device based on the third information. The third information includes the following three aspects: the energy of the terminal device; whether the to-be-transmitted data includes the target data; and whether the terminal device supports completing the transmission of the to-be-transmitted data. The terminal device first determines whether the to-be-transmitted data includes the target data, and enters step S1102.

[0184] In step S1102, the terminal device determines whether the to-be-transmitted data includes the target data.

[0185] The terminal device determines whether the to-be-transmitted data includes the target data based on the information indicated by the first paging message. If the to-be-transmitted data includes the target data, the terminal device enters step S1103; if the to-be-transmitted data does not include the target data, the terminal device enters step S1104.

[0186] In step S1103, the terminal device determines whether to establish the connection based on the energy of the terminal device.

[0187] The terminal device determines whether the energy of the terminal device supports transmission of the target data based on the energy of the terminal device. If the energy of the terminal device supports transmission of the target data, step S1109 is entered; if the energy of the terminal device does not support transmission of the target data, step S1108 is entered.

[0188] In step S1104, the terminal device determines whether the terminal device supports completing transmission of the to-be-transmitted data.

[0189] The terminal device determines whether the terminal device supports completing transmission of the to-be-transmitted data based on the energy of the terminal device, the wireless signal quality of the terminal device, and the data amount of the to-be-transmitted data. If the terminal device supports completing transmission of the to-be-transmitted data, step S1105 is entered; if the terminal device does not support completing transmission of the to-be-transmitted data, step S1109 is entered.

[0190] In step S1105, the terminal device determines whether there is a first reason.

[0191] The terminal device determines whether there is a first reason. If there is a first reason, step S1108 is entered; if there is no first reason, step S1109 is entered.

[0192] In step S1106, the terminal device determines whether the to-be-transmitted data includes uplink emergency data.

[0193] The terminal device determines whether the to-be-transmitted data includes uplink emergency data based on the to-be-transmitted uplink data. If the to-be-transmitted data includes uplink emergency data, step S1109 is entered; if the to-be-transmitted data does not include uplink emergency data, step S1107 is entered.

[0194] In step S1107, the terminal device determines whether to establish a connection by itself.

[0195] The terminal device determines whether to establish a connection with the network device by itself.

[0196] In step S1108, the terminal device does not establish a connection.

[0197] The terminal device does not establish a connection with the network device.

[0198] In step S1109, the terminal device establishes a connection.

[0199] The terminal device establishes a connection with the network device.

[0200] In step S1110, the terminal device receives target data or transmits uplink emergency data.

[0201] After the terminal device establishes a connection with the network device, the target data is preferentially transmitted, that is, the target data is received. If the non-target data in the to-be-transmitted data includes uplink emergency data, the terminal device preferentially transmits the uplink emergency data.

[0202] In step S1111, the terminal device transmits other data.

[0203] The terminal device transmits other data in the to-be-transmitted data except the target data and / or the uplink emergency data.

[0204] From the above, in a communication system, a terminal device (for example, an AIoT device) can only perform a sending or receiving operation after collecting a certain amount of energy. Conversely, when the terminal device does not collect enough energy, the terminal device cannot perform a sending or receiving operation. However, in the transmission process of a conventional paging message, the network device does not perceive the energy of the terminal device, which can cause waste of resources or energy.

[0205] Taking a terminal device as an AIoT device as an example, data transmission of a wireless interface requires two types of resources: energy resources and wireless resources. The energy resources are only known by the AIoT device, and the wireless resources are allocated by the network device. However, when the two types of resources do not match, the data transmission can not be completed, wireless resources are wasted, or the energy of the AIoT device is wasted. For example, the network device sends a first paging message to the AIoT device and allocates downlink resources to the AIoT device. The energy of the AIoT device can support receiving the first paging message, but cannot support receiving downlink data, so the AIoT device cannot complete the reception of the downlink data, causing waste of wireless resources.

[0206] To solve the above problems, an embodiment of the present application provides a wireless communication method. A terminal device sends first information to a network device. The first information is used by the network device to allocate uplink and downlink resources and / or adjust transmission of a paging message used to page the terminal device, which helps to improve the probability of completing data transmission and helps to improve the utilization rate of resources and energy.

[0207] In some implementations, the network device receives the first information sent by the terminal device. The network device can allocate uplink and downlink resources to the terminal device and / or adjust transmission of a paging message used to page the terminal device based on the first information.

[0208] In the embodiments of the present application, the manner of adjusting the transmission of the paging message for paging the terminal device is not limited. In some implementations, adjusting the transmission of the paging message for paging the terminal device can be understood as adjusting the transmission time of the paging message for paging the terminal device. For example, postponing or advancing the transmission time of the paging message for paging the terminal device. In other implementations, adjusting the transmission of the paging message for paging the terminal device can be understood as adjusting the number of the paging message for paging the terminal device. For example, reducing or increasing the number of the paging message for paging the terminal device.

[0209] The related scheme of the first information is introduced below in combination with Embodiment 3.

[0210] Embodiment 3: First information

[0211] Implementation 3-1: The first information is used to indicate one or more of the following: the energy of the terminal device; the wireless signal quality of the terminal device; the uplink data amount supported by the energy of the terminal device and / or the wireless signal quality of the terminal device for transmission; the downlink data amount supported by the energy of the terminal device and / or the wireless signal quality of the terminal device for transmission; whether the energy of the terminal device and / or the wireless signal quality of the terminal device supports the transmission of the uplink data amount to be transmitted; whether the energy of the terminal device and / or the wireless signal quality of the terminal device supports the transmission of the downlink data amount to be transmitted; the energy harvesting speed of the terminal device.

[0212] It should be noted that the foregoing description of the energy of the terminal device and the wireless signal quality of the terminal device also applies to the present embodiment, which is not described here.

[0213] In some implementations, the uplink data amount supported by the energy of the terminal device and / or the wireless signal quality of the terminal device for transmission can be understood as the uplink data amount supported by the terminal device for transmission under the current energy of the terminal device and / or the wireless signal quality of the terminal device.

[0214] In some implementations, the downlink data amount supported by the energy of the terminal device and / or the wireless signal quality of the terminal device for transmission can be understood as the downlink data amount supported by the terminal device for transmission under the current energy of the terminal device and / or the wireless signal quality of the terminal device.

[0215] In some implementations, whether the energy of the terminal device and / or the wireless signal quality of the terminal device supports the transmission of the uplink data amount to be transmitted can be understood as whether the terminal device supports the transmission of all the uplink data amount to be transmitted under the current energy of the terminal device and / or the wireless signal quality of the terminal device.

[0216] In some implementations, whether the energy of the terminal device and / or the wireless signal quality of the terminal device supports the transmission of the amount of downlink data to be transmitted can be understood as whether the terminal device supports the transmission of all the amount of downlink data to be transmitted under the current energy of the terminal device and / or the wireless signal quality of the terminal device.

[0217] In some implementations, the speed of energy collection of the terminal device can be understood as the speed of energy collection of the terminal device in the current situation. For example, the terminal device collects energy every 10 minutes, which can support the reception of XX Bytes of downlink data and / or the transmission of YY Bytes of uplink data.

[0218] In some implementations, the first information is used to indicate the energy of the terminal device. Accordingly, the network device receiving the first information can allocate uplink and downlink resources to the terminal device and / or adjust the transmission of the paging message used to page the terminal device based on the energy of the terminal device indicated by the first information. For example, the network device knows the capability of the terminal device to support the transmission of uplink and downlink data based on the energy of the terminal device. Based on the current energy of the terminal device, the network device can determine whether the terminal device supports the transmission of the downlink data to be transmitted, and further determine whether to allocate downlink resources to the terminal device and / or adjust the transmission of the paging message used to page the terminal device.

[0219] In some implementations, the first information is used to indicate the energy of the terminal device and the wireless signal quality of the terminal device. Accordingly, the network device receiving the first information can allocate uplink and downlink resources to the terminal device and / or adjust the transmission of the paging message used to page the terminal device based on the energy of the terminal device and the wireless signal quality of the terminal device indicated by the first information. For example, the network device knows the capability of the terminal device to support the transmission of downlink data based on the energy of the terminal device. Based on the current energy of the terminal device and the current wireless signal quality, the network device can determine whether the current energy of the terminal device and the wireless signal quality of the terminal device support the transmission of the downlink data to be transmitted, and further determine whether to allocate downlink resources to the terminal device and / or adjust the transmission of the paging message used to page the terminal device.

[0220] In some implementations, the first information is used to indicate the energy of the terminal device, the wireless signal quality of the terminal device, and the amount of uplink data supported by the energy of the terminal device and / or the wireless signal quality of the terminal device for transmission. Accordingly, the network device receiving the first information can allocate uplink resources and / or adjust the transmission of the paging message used to page the terminal device based on the content indicated by the first information.

[0221] In some implementations, the first information is used to indicate the energy of the terminal device, the wireless signal quality of the terminal device, and whether the energy of the terminal device and / or the wireless signal quality of the terminal device supports transmission of the uplink data volume to be transmitted. Accordingly, the network device, upon receiving the first information, can allocate or not allocate uplink resources for the terminal device based on the content indicated by the first information, and / or adjust transmission of the paging message used to page the terminal device.

[0222] In some implementations, the first information is used to indicate the energy of the terminal device, the wireless signal quality of the terminal device, and whether the energy of the terminal device and / or the wireless signal quality of the terminal device supports transmission of the uplink data volume to be transmitted. Accordingly, the network device, upon receiving the first information, can allocate or not allocate uplink resources for the terminal device based on the content indicated by the first information, and / or adjust transmission of the paging message used to page the terminal device.

[0223] In some implementations, the first information is used to indicate the energy of the terminal device, the wireless signal quality of the terminal device, and whether the energy of the terminal device and / or the wireless signal quality of the terminal device supports transmission of the uplink data volume to be transmitted. Accordingly, the network device, upon receiving the first information, can allocate or not allocate uplink resources for the terminal device based on the content indicated by the first information, and / or adjust transmission of the paging message used to page the terminal device.

[0224] In some implementations, the first information is used to indicate the energy of the terminal device, the wireless signal quality of the terminal device, and whether the energy of the terminal device and / or the wireless signal quality of the terminal device supports transmission of the uplink data volume to be transmitted. Accordingly, the network device, upon receiving the first information, can allocate or not allocate uplink resources for the terminal device based on the content indicated by the first information, and / or adjust transmission of the paging message used to page the terminal device.

[0225] In some implementations, the first information is used to indicate the energy of the terminal device, the wireless signal quality of the terminal device, and whether the energy of the terminal device and / or the wireless signal quality of the terminal device supports transmission of the uplink data volume to be transmitted. Accordingly, the network device, upon receiving the first information, can allocate or not allocate uplink resources for the terminal device based on the content indicated by the first information, and / or adjust transmission of the paging message used to page the terminal device.

[0226] In some implementations, the first information is used to indicate the energy of the terminal device, the wireless signal quality of the terminal device, and whether the energy of the terminal device and / or the wireless signal quality of the terminal device supports transmission of the uplink data volume to be transmitted. Accordingly, the network device, upon receiving the first information, can allocate or not allocate uplink resources for the terminal device based on the content indicated by the first information, and / or adjust transmission of the paging message used to page the terminal device.

[0227] In some embodiments, the first information is used to indicate the energy of the terminal device, the wireless signal quality of the terminal device, and that the energy of the terminal device and / or the wireless signal quality of the terminal device does not support transmission of the amount of downlink data to be transmitted. Accordingly, the network device receiving the first information can not allocate uplink resources for the terminal device based on the content indicated by the first information, and / or adjust transmission of the paging message used to page the terminal device.

[0228] In some embodiments, the first information indicates that the energy of the terminal device and / or the wireless signal quality of the terminal device supports transmission of the amount of downlink data to be transmitted, which can be determined based on the amount of downlink data to be transmitted indicated by the first paging message. For example, the first paging message indicates the amount of downlink data to be transmitted, and the terminal device determines that the terminal device supports transmission of part or all of the amount of downlink data to be transmitted based on the energy of the terminal device and / or the wireless signal quality of the terminal device.

[0229] In some embodiments, the first information indicates the energy of the terminal device and the energy collection speed of the terminal device. Accordingly, the network device receiving the first information can allocate uplink and downlink resources for the terminal device based on the content indicated by the first information, and / or adjust transmission of the paging message used to page the terminal device. For example, the network device knows that the energy of the terminal device supports the capability of transmission of downlink data, and based on the current energy of the terminal device, determines that the terminal device does not support transmission of the amount of downlink data to be transmitted. Based on the energy collection speed of the terminal device, the network device determines that the energy of the terminal device supports transmission of the amount of downlink data to be transmitted after 10 minutes, and thus allocates downlink resources for the terminal device after 10 minutes and postpones transmission of the paging message used to page the terminal device (e.g., sends the paging message after 10 minutes).

[0230] In some embodiments, the first information is carried in one or more of the following: a medium access control control element (MAC CE) message, an RRC message, a physical uplink control channel (PUCCH).

[0231] In some embodiments, the first information is carried in a message in a random access procedure. For example, the terminal device sends the first information to the network device through message 3 (Msg3) in the random access procedure.

[0232] In some embodiments, the first information is carried in UE assistance information (UAI). For example, the terminal device reports the first information to the network device through the UAI.

[0233] In some implementations, the first condition is met, and the terminal device sends the updated first information to the network device.

[0234] In some implementations, the updated first information can be understood as follows: the content indicated by the first information changes, and the updated first information indicates the updated content. For example, the first information indicates that the energy of the terminal device and / or the wireless signal quality of the terminal device supports transmission of a to-be-transmitted downlink data amount. After the terminal device sends the first information for the first time, the wireless signal quality of the terminal device changes greatly, causing the to-be-transmitted downlink data amount that can be supported to change. The terminal device sends the updated first information, and the updated first information indicates the updated to-be-transmitted downlink data amount that can be supported. For another example, the first information indicates whether the energy of the terminal device and / or the wireless signal quality of the terminal device supports transmission of a to-be-transmitted uplink data amount. After the terminal device sends the first information for the first time, a large amount of uplink data arrives at the access layer of the terminal device, causing the previously reported first information to be no longer accurate, which may cause the terminal device to change from supporting transmission of the to-be-transmitted uplink data amount to no longer supporting transmission of the to-be-transmitted uplink data amount. The terminal device can send the updated first information, and the updated first information indicates that the energy of the terminal device and / or the wireless signal quality of the terminal device does not support transmission of the to-be-transmitted uplink data amount.

[0235] In some implementations, the first condition includes one or more of the following: a difference between the wireless signal quality of the terminal device indicated by the first information and the wireless signal quality of the terminal device indicated by the updated first information is greater than a first threshold; information indicating that the terminal device can complete transmission of the to-be-transmitted data in the first information is invalid; and an uplink data amount that arrives at the access layer of the terminal device after the first information is sent exceeds a second threshold.

[0236] In some implementations, the first condition includes that a difference between the wireless signal quality of the terminal device indicated by the first information and the wireless signal quality of the terminal device indicated by the updated first information is greater than a first threshold, that is, if the difference between the wireless signal quality of the terminal device indicated by the first information and the wireless signal quality of the terminal device indicated by the updated first information is greater than the first threshold, the terminal device sends the updated first information. For example, the first information is used to indicate the wireless signal quality of the terminal device. When the terminal device sends the first information for the first time, the wireless signal quality of the terminal device is RSRP1, and the first threshold is Δ. If the wireless signal quality of the terminal device exceeds the range of RSRP1±Δ subsequently, the terminal device sends the updated first information.

[0237] In some implementations, the first condition comprises that information indicating that the terminal device is capable of completing transmission of the to-be-transmitted data in the first information is invalid, that is, if the information indicating that the terminal device is capable of completing transmission of the to-be-transmitted data in the first information is invalid, the terminal device sends the updated first information. For example, the first information indicates that the energy of the terminal device and / or the wireless signal quality of the terminal device supports transmission of the amount of uplink data to be transmitted, after the terminal device sends the first information for the first time, due to the deterioration of the wireless signal quality, the information indicating that the terminal device is capable of completing transmission of the to-be-transmitted data in the previously sent first information is invalid, that is, the energy of the terminal device and / or the wireless signal quality of the terminal device does not support transmission of the amount of uplink data to be transmitted, the first condition is met, the terminal device sends the updated first information, and the updated first information indicates that the energy of the terminal device and / or the wireless signal quality of the terminal device does not support transmission of the amount of uplink data to be transmitted. For another example, the first information indicates that the energy of the terminal device and / or the wireless signal quality of the terminal device does not support transmission of the amount of uplink data to be transmitted, after the terminal device sends the first information for the first time, due to the improvement of the wireless signal quality, the information indicating that the terminal device is capable of completing transmission of the to-be-transmitted data in the first information is invalid, that is, the energy of the terminal device and / or the wireless signal quality of the terminal device supports transmission of the amount of uplink data to be transmitted, the first condition is met, the terminal device sends the updated first information, and the updated first information indicates that the energy of the terminal device and / or the wireless signal quality of the terminal device supports transmission of the amount of uplink data to be transmitted. For another example, the first information indicates that the energy of the terminal device and / or the wireless signal quality of the terminal device supports transmission of the amount of uplink data to be transmitted, after the terminal device sends the first information for the first time, new uplink data arrives at the access layer of the terminal device, the information indicating that the terminal device is capable of completing transmission of the to-be-transmitted data in the first information is invalid, that is, the energy of the terminal device and / or the wireless signal quality of the terminal device does not support transmission of the amount of uplink data to be transmitted, the first condition is met, the terminal device sends the updated first information, and the updated first information indicates that the energy of the terminal device and / or the wireless signal quality of the terminal device does not support transmission of the amount of uplink data to be transmitted.

[0238] In some embodiments, the first condition comprises that the amount of uplink data arriving at the access layer of the terminal device after the first information is sent exceeds a second threshold, that is, after the terminal device sends the first information for the first time, the amount of uplink data arriving at the access layer of the terminal device exceeds the second threshold, and the terminal device sends the updated first information. For example, the first information is used to indicate whether the energy of the terminal device and / or the radio signal quality of the terminal device supports transmission of the amount of uplink data to be transmitted, the second threshold is θ, and after the terminal device sends the first information for the first time, the amount of uplink data arriving at the access layer of the terminal device exceeds θ, the terminal device sends the updated first information, and the updated first information indicates whether the energy of the terminal device and / or the radio signal quality of the terminal device supports transmission of the amount of uplink data to be transmitted (the sum of the amount of uplink data to be transmitted when the first information is sent for the first time and the amount of uplink data arriving at the access layer of the terminal device thereafter).

[0239] In some embodiments, the first threshold and / or the second threshold described above can be specified by a protocol.

[0240] In some other embodiments, the first threshold and / or the second threshold described above can be configured by the network device. For example, the base station indicates the first threshold and / or the second threshold to the network device through SIB.

[0241] Embodiment 3-2: The first information is used to indicate one or more of the following: the terminal device has received the first paging message; the energy of the terminal device cannot complete uplink data transmission; the energy of the terminal device cannot complete downlink data transmission; the first data has not arrived at the terminal device, and the first data is transmitted together with the data to be transmitted that has arrived at the terminal device; the second data has not arrived at the network device, and the second data is transmitted together with the data to be transmitted that has arrived at the network device; and the time when the terminal device is ready to establish a connection with the network device. The terminal device indicates the first information to the network device, which helps to avoid the network device from continuing to send the first paging message, thereby reducing the waste of downlink radio resources and the power consumption of the network device.

[0242] In the embodiments of the present application, the indication manner of the time when the terminal device is ready to establish a connection with the network device is not limited. For example, the absolute time can be used to indicate the time when the terminal device is ready to establish a connection with the network device. For another example, one or more of the following can be used to indicate the time when the terminal device is ready to establish a connection with the network device: system frame number (SFN), subframe, time slot, and symbol position.

[0243] In some implementations, the first information is used to indicate that the terminal device has received the first paging message, and the energy of the terminal device cannot complete the downlink data transmission. It can be understood that the terminal device has received the first paging message, but under the current energy and / or wireless signal quality of the terminal device, the transmission of the to-be-transmitted downlink data cannot be completed, so the connection with the network device is not established temporarily.

[0244] In some implementations, the first information is used to indicate that the terminal device has received the first paging message, the energy of the terminal device cannot complete the downlink data transmission, and the time when the terminal device is ready to establish a connection with the network device. For example, the terminal device does not establish the connection with the network device temporarily, and is ready to establish the connection with the network device after the T1 moment.

[0245] In some implementations, the first information is used to indicate that the terminal device has received the first paging message, and the energy of the terminal device cannot complete the uplink data transmission. It can be understood that the terminal device has received the first paging message, but under the current energy and / or wireless signal quality of the terminal device, the transmission of the to-be-transmitted uplink data cannot be completed, so the connection with the network device is not established temporarily.

[0246] In some implementations, the first information is used to indicate that the terminal device has received the first paging message, the energy of the terminal device cannot complete the uplink data transmission, and the time when the terminal device is ready to establish a connection with the network device. For example, the terminal device does not establish the connection with the network device temporarily, and is ready to establish the connection with the network device after the T2 moment.

[0247] In some implementations, the first information is used to indicate that the terminal device has received the first paging message, the energy of the terminal device cannot complete the downlink data transmission, and the energy of the terminal device cannot complete the uplink data transmission. It can be understood that the terminal device has received the first paging message, but under the current energy and / or wireless signal quality of the terminal device, the transmission of the to-be-transmitted uplink data and downlink data cannot be completed, so the connection with the network device is not established temporarily.

[0248] In some implementations, the first information is used to indicate that the terminal device has received the first paging message, the energy of the terminal device cannot complete the downlink data transmission, the energy of the terminal device cannot complete the uplink data transmission, and the time when the terminal device is ready to establish a connection with the network device. For example, the terminal device does not establish the connection with the network device temporarily, and is ready to establish the connection with the network device after the T3 moment.

[0249] In some implementations, the first information is used to indicate that the terminal device has received the first paging message, and that the first data has not arrived at the terminal device, and that the first data is transmitted together with the to-be-transmitted data that has arrived at the terminal device. It can be understood that the terminal device has received the first paging message, and that the terminal device can complete transmission of the to-be-transmitted uplink data at a current energy and / or radio signal quality of the terminal device, but that the first data will arrive at the terminal device in the future, so that the terminal device temporarily does not establish a connection with the network device, and waits until the first data arrives at the terminal device to establish the connection with the network device, and the first data is transmitted together with the to-be-transmitted data that has arrived at the terminal device.

[0250] In some implementations, the first information is used to indicate that the terminal device has received the first paging message, that the first data has not arrived at the terminal device, that the first data is transmitted together with the to-be-transmitted data that has arrived at the terminal device, and a time at which the terminal device is ready to establish a connection with the network device. For example, the terminal device temporarily does not establish a connection with the network device, and is ready to establish the connection with the network device after a time T4. The time T4 can be located within the first paging window or outside the first paging window. Correspondingly, the network device configures uplink resources at the time T4 for the terminal device based on the first information, and adjusts transmission of the paging message used to page the terminal device (for example, the network device does not need to send the first paging message again).

[0251] In some implementations, the first information is used to indicate that the terminal device has received the first paging message, and that the second data has not arrived at the network device, and that the second data is transmitted together with the to-be-transmitted data that has arrived at the network device. It can be understood that the terminal device has received the first paging message, and that the terminal device can complete transmission of the to-be-transmitted downlink data at a current energy and / or radio signal quality of the terminal device, but that the second data will arrive at the network device in the future, so that the terminal device temporarily does not establish a connection with the network device, and waits until the second data arrives at the network device to establish the connection with the network device, and the second data is transmitted together with the to-be-transmitted data that has arrived at the network device.

[0252] In some implementations, the first information is used to indicate that the terminal device has received the first paging message, that the second data has not arrived at the network device, that the second data is transmitted together with the to-be-transmitted data that has arrived at the network device, and a time at which the terminal device is ready to establish a connection with the network device. For example, the terminal device temporarily does not establish a connection with the network device, and is ready to establish the connection with the network device after a time T5. The time T5 can be located within the first paging window or outside the first paging window. Correspondingly, the network device configures downlink resources at the time T5 for the terminal device based on the first information, and adjusts transmission of the paging message used to page the terminal device (for example, the network device does not need to send the first paging message again).

[0253] In some implementations, the terminal device can determine whether there is the second data through the assistance information indicated by the application layer of the terminal device.

[0254] In some implementations, if the first information is used to indicate that the first data and / or the second data is transmitted together with the data to be transmitted, and the first information is also used to indicate the time when the terminal device is ready to establish a connection with the network device, the terminal device can actively establish a connection with the network device. Accordingly, the network device can determine that it is not necessary to send the paging message for paging the terminal device again based on the first information.

[0255] In some implementations, the terminal device can send the first information to the network device through the uplink resource indicated by the first paging information.

[0256] The above describes the implementation of the terminal device determining whether to respond to the first paging message, the terminal device determining whether to establish a connection, and the first information sent by the terminal device, respectively, in combination with Embodiment 1, Embodiment 2, and Embodiment 3. In some implementations, Embodiment 1, Embodiment 2, and Embodiment 3 can be used alone. In some other scenarios, Embodiment 1, Embodiment 2, and Embodiment 3 can be used in combination. The following describes the scheme in which Embodiment 1, Embodiment 2, and Embodiment 3 are used in combination.

[0257] In some implementations, the terminal device determines to respond to the first paging message based on the scheme of Embodiment 1, and determines to establish a connection with the network device based on the scheme of Embodiment 2, the terminal device can determine that the implementation of the first information is implementation 3-1. For example, the terminal device determines to respond to the first paging message, determines to establish a connection with the network device based on the third information, and sends the first information to the network device, the first information is used to indicate the energy of the terminal device and / or the wireless signal quality of the terminal device supporting the amount of downlink data to be transmitted, the network device receives the first information, and can determine the amount of downlink data that the terminal device can support to receive based on the first information, and allocates corresponding downlink resources for the terminal device.

[0258] In some implementations, if the terminal device determines to establish a connection with the network device based on the scheme of Embodiment 2, the terminal device can determine that the implementation of the first information is implementation 3-1. For example, if the terminal device determines to establish a connection with the network device based on the third information, the terminal device sends the first information to the network device, the first information is used to indicate the energy of the terminal device and / or the wireless signal quality of the terminal device supporting the amount of downlink data to be transmitted, the network device receives the first information, and can determine the amount of downlink data that the terminal device can support to receive based on the first information, and allocates corresponding downlink resources for the terminal device.

[0259] In some implementations, if the terminal device determines to respond to the first paging message based on the scheme in Embodiment 1 and determines not to establish the connection with the network device based on the scheme in Embodiment 2, the terminal device can determine that the implementation of the first information is the implementation 3-2. For example, the terminal device determines to respond to the first paging message, determines not to establish the connection with the network device based on the third information, and sends the first information to the network device, the first information being used to indicate that the energy of the terminal device cannot complete the downlink data transmission, the network device receiving the first information can determine that the terminal device does not support receiving the downlink data based on the first information, and thus the terminal device is not allocated the downlink resource and the transmission of the paging message for paging the terminal device is postponed.

[0260] In some implementations, if the terminal device determines not to establish the connection with the network device based on the scheme in Embodiment 2, the terminal device can determine that the implementation of the first information is the implementation 3-2. For example, if the terminal device determines not to establish the connection with the network device based on the third information, the terminal device sends the first information to the network device, the first information being used to indicate that the energy of the terminal device and / or the wireless signal quality of the terminal device support the amount of the downlink data to be transmitted, the network device receiving the first information can determine that the terminal device can support the amount of the downlink data to be received based on the first information, and allocates the corresponding downlink resource.

[0261] From the above, the network device can send the first paging message to the terminal device based on a paging group (hereinafter referred to as a first paging group). In some scenarios, the first paging group is invisible to the network device, and the network device will send the first paging message to a plurality of terminal devices included in the first paging group. How the terminal device determines whether the first paging message is used to page itself is a problem to be solved.

[0262] To solve the above problem, the embodiment of the present application provides a method of wireless communication, the first paging message is used to page a first paging group, and the upper layer of the terminal device and / or the access layer of the terminal device determines whether the first paging group includes the terminal device.

[0263] The scheme in which the upper layer of the terminal device and / or the access layer of the terminal device determines whether the first paging group includes the terminal device is introduced below in combination with Embodiment 4.

[0264] Embodiment 4: The upper layer of the terminal device and / or the access layer of the terminal device determines whether the first paging group includes the terminal device

[0265] In some implementations, the upper layer of the terminal device can be a non-access layer or an application layer of the terminal device, the access layer of the terminal device indicates the information of the first paging group to the non-access layer or the application layer of the terminal device, and the non-access layer or the application layer of the terminal device determines whether the first paging group includes the terminal device based on the information of the first paging group.

[0266] In some implementations, the first paging message is used to page the first paging group, and the non-access layer or the application layer of the terminal device can indicate to the access layer of the terminal device whether the first paging group includes the terminal device.

[0267] In some implementations, the non-access layer or the application layer of the terminal device determines whether the first paging group includes the terminal device based on the information of the first paging group. It can be understood that if the non-access layer or the application layer of the terminal device determines that the paging group to which the terminal device belongs includes the first paging group, the first paging group includes the terminal device; if the non-access layer or the application layer of the terminal device determines that the paging group to which the terminal device belongs does not include the first paging group, the first paging group does not include the terminal device. For example, the paging group to which the terminal device belongs includes the first paging group and the second paging group, and if the non-access layer or the application layer of the terminal device determines that the paging group to which the terminal device belongs includes the first paging group, the first paging group includes the terminal device.

[0268] In some implementations, the manner of determining whether the first paging group includes the terminal device is to determine whether the ID of the paging group to which the terminal device belongs includes the ID of the first paging group. For example, the ID of the first paging group is 100, the ID of the paging group to which the terminal device belongs is 100 and 101, and the ID of the paging group to which the terminal device belongs includes the ID of the first paging group, so the first paging group includes the terminal device.

[0269] In some other implementations, the first paging message is used to page the first paging group, and the access layer of the terminal device determines whether the first paging group includes the terminal device based on the paging group to which the terminal device belongs.

[0270] In some implementations, the access layer of the terminal device determines whether the first paging group includes the terminal device based on the paging group to which the terminal device belongs. It can be understood that if the access layer of the terminal device determines that the paging group to which the terminal device belongs includes the first paging group, the first paging group includes the terminal device; if the access layer of the terminal device determines that the paging group to which the terminal device belongs does not include the first paging group, the first paging group does not include the terminal device.

[0271] In some implementations, the paging group to which the terminal device belongs is indicated by the non-access layer or the application layer of the terminal device to the access layer of the terminal device. For example, the non-access layer or the application layer of the terminal device indicates the ID of the paging group to which the terminal device belongs to the access layer of the terminal device.

[0272] In order to facilitate understanding, the following will introduce the scheme of the terminal device determining whether the first paging group includes the terminal device by taking FIG. 12 as an example.

[0273] Referring to FIG. 12, steps S1210 to S1214 of FIG. 12 are used to introduce the scheme of the non-access layer or the application layer of the terminal device determining whether the first paging group includes the terminal device.

[0274] In step S1210, the AMF sends a first paging message to the base station.

[0275] The first paging message is used to page the first paging group, and the first paging message carries an ID of the first paging group.

[0276] In step S1211, the base station sends the first paging message to the terminal device 1 and the terminal device 2.

[0277] In step S1212, the access layer of the terminal device 2 sends the ID of the first paging group to the non-access layer of the terminal device 2.

[0278] In step S1213, the non-access layer of the terminal device 2 determines whether the first paging group includes the terminal device 2, and sends the result to the access layer of the terminal device 2.

[0279] The non-access layer of the terminal device 2 determines whether the first paging group includes the terminal device 2, such as by comparing whether the ID of the paging group to which the terminal device 2 belongs includes the ID of the first paging group. If the ID of the paging group to which the terminal device 2 belongs includes the ID of the first paging group, the first paging group includes the terminal device 2; otherwise, the first paging group does not include the terminal device 2.

[0280] In step S1214, the terminal device determines whether to respond to the first paging group.

[0281] If the first paging group includes the terminal device 2, the terminal device 2 can determine that the first paging message is used to page the terminal device 2, and the terminal device 2 can continue to determine whether to respond to the first paging message based on the energy of the terminal device 2; if the first paging group does not include the terminal device 2, the terminal device 2 can determine that the first paging message is not used to page the terminal device 2, and the terminal device 2 can determine not to respond to the first paging message.

[0282] Continuing to refer to FIG. 12, steps S1220 to S12244 of FIG. 12 are used to introduce a scheme in which the access layer of the terminal device determines whether the first paging group includes the terminal device.

[0283] In step S1220, the non-access layer of the terminal device 2 sends the ID of the paging group to which the terminal device 2 belongs to the access layer of the terminal device 2.

[0284] In step S1221, the access layer of the terminal device 2 stores the ID of the paging group to which the terminal device 2 belongs.

[0285] In step S1222, the AMF sends a first paging message to the base station.

[0286] The first paging message is used to page the first paging group, and the first paging message carries an ID of the first paging group.

[0287] In step S1223, the base station transmits the first paging message to the terminal device 1 and the terminal device 2.

[0288] In step S1224, the terminal device 2 determines whether the first paging group includes the terminal device 2, and determines whether to respond to the first paging message.

[0289] The access layer of the terminal device 2 determines whether the first paging group includes the terminal device 2 based on the stored ID of the paging group to which the terminal device 2 belongs, such as by comparing whether the paging group ID to which the terminal device 2 belongs includes the first paging group ID. If the paging group ID to which the terminal device 2 belongs includes the first paging group, the first paging group includes the terminal device 2; otherwise, the first paging group does not include the terminal device 2. If the first paging group includes the terminal device 2, the terminal device 2 can determine that the first paging message is used to page the terminal device 2, and the terminal device 2 can continue to determine whether to respond to the first paging message based on the energy of the terminal device 2; if the first paging group does not include the terminal device 2, the terminal device 2 can determine that the first paging message is not used to page the terminal device 2, and the terminal device 2 can determine not to respond to the first paging message.

[0290] In some implementations, the terminal device belongs to the first paging group and the second paging group, the first paging message is used to page the first paging group, and the terminal device can transmit the to-be-transmitted data associated with the first paging group and / or the to-be-transmitted data associated with the second paging group to the network device. That is, the terminal device can establish a connection with the network device based on the first paging message, and transmit the to-be-transmitted data associated with the first paging group and / or the to-be-transmitted data associated with the second paging group to the network device, so as to improve the utilization rate of resources.

[0291] In some implementations, if the terminal device establishes a connection with the network device based on the first paging message, and transmits the to-be-transmitted data associated with the first paging group and / or the to-be-transmitted data associated with the second paging group to the network device, the terminal device can not listen to the paging message used to page the second paging group within the first time period, so as to improve the utilization rate of resources.

[0292] In some implementations, if the terminal device establishes a connection with the network device based on the second paging message, and transmits the to-be-transmitted data associated with the first paging group and / or the to-be-transmitted data associated with the second paging group to the network device, the terminal device can not listen to the paging message used to page the first paging group within the second time period, so as to improve the utilization rate of resources.

[0293] In some implementations, the first time period and / or the second time period is configured by the network device.

[0294] In some implementations, the first time period and / or the second time period is configured by the core network device. For example, the core network device determines the length of the first time period as T1, and notifies the terminal device of the length of the first time period through a non access stratum (NAS) message. The core network device ensures that, after the core network device initiates the paging based on the first paging group in a cell, the core network device does not initiate the paging based on the second paging group in the same cell within the T1 time period. For another example, the core network device determines the length of the second time period as T2, and notifies the terminal device of the length of the second time period through the NAS message. The core network device ensures that, after the core network device initiates the paging based on the second paging group in a cell, the core network device does not initiate the paging based on the first paging group in the same cell within the T2 time period.

[0295] In some other implementations, the first time period and / or the second time period is configured by the access network device. For example, the access network device is a base station, the base station determines the first time period and / or the second time period as T1 and T2 respectively, the first paging message and / or the second paging message is sent to the base station by the core network, the base station does not send the first paging message and / or the second paging message on the air interface within the T1 / T2 time period, and the first paging message and / or the second paging message needs to be stored in the base station for a period of time.

[0296] The above describes a plurality of solutions that help solve a plurality of problems of the conventional paging mechanism in combination with Embodiment 1, Embodiment 2, Embodiment 3, and Embodiment 4 respectively. In some implementations, Embodiment 1, Embodiment 2, Embodiment 3, and Embodiment 4 can be used alone. In some other scenarios, Embodiment 1, Embodiment 2, Embodiment 3, and Embodiment 4 can be used in combination.

[0297] From the above, in the transmission process of the conventional paging message, the network device does not perceive the energy of the terminal device, and thus there is a problem that may cause waste of resources or energy.

[0298] To solve the problem, the embodiments of the present application further provide a method for wireless communication. An access layer of a terminal device indicates fourth information to an upper layer of the terminal device, and / or an access network device indicates the fourth information to an application server or a core network element. The fourth information is used to indicate a time for which energy collected by the terminal device supports wireless transmission of the terminal device, and / or a target data volume for which energy collected by the terminal device supports transmission of the terminal device. Based on the fourth information, the upper layer of the terminal device and / or the application server or the core network element can generate data and allocate uplink and downlink resources at a suitable time window, so as to improve the utilization rate of resources and energy.

[0299] Embodiment 5: a manner of indicating the fourth information

[0300] In some implementations, the upper layer of the terminal device can be a non-access layer or an application layer of the terminal device, the access layer of the terminal device indicates the fourth information to the non-access layer or the application layer of the terminal device, and the fourth information is used to indicate a time during which the energy collected by the terminal device supports the terminal device to perform wireless transmission, and / or a target data amount that the energy collected by the terminal device supports the terminal device to transmit. The access layer of the terminal device indicates the fourth information to the upper layer, which helps the upper layer to generate uplink data at a suitable time window, so as to reduce power consumption caused by uplink data waiting in the buffer.

[0301] In some implementations, the time during which the energy collected by the terminal device supports the terminal device to perform wireless transmission can be understood as a time during which the energy collected by the terminal device supports the terminal device to perform uplink and / or downlink data transmission.

[0302] In some implementations, the target data amount that the energy collected by the terminal device supports the terminal device to transmit can be understood as an uplink data and / or a downlink data of a target data amount that the energy collected by the terminal device supports the terminal device to transmit.

[0303] In some implementations, the target data amount is configured by a network device. For example, the network device configures the target data amount as X Bytes, and when the terminal device determines that the energy of the terminal device can support transmission of X Bytes of uplink data, the access layer of the terminal device indicates the fourth information to the non-access layer or the application layer of the terminal device, and the fourth information indicates that the energy collected by the terminal device supports the terminal device to transmit X Bytes of uplink data.

[0304] In some implementations, the access network device indicates the fourth information to an application server or a core network element. Accordingly, the application server or the core network element obtains the fourth information, and can determine a sending time of a paging message used to page the terminal device based on the fourth information. For example, the core network element is a user plane function (UPF) network element, and when the energy of the terminal device does not support response to the paging message or does not support transmission of downlink data of the UPF network element for the terminal device, the paging message can not be sent temporarily.

[0305] In some implementations, the fourth information is determined by the access network device based on the energy harvesting speed of the terminal device. For example, the network device is an access network device, the terminal device sends the first information to the access network device, the first information indicates the energy harvesting speed of the terminal device, and the access network device determines, based on the energy harvesting speed of the terminal device, a time at which the energy harvested by the terminal device supports the terminal device to perform wireless transmission. For another example, the access network device determines, based on the energy harvesting speed of the terminal device, that the energy harvested by the terminal device supports the terminal device to transmit X Bytes of uplink data and / or Y Bytes of downlink data, and a time at which the energy harvested by the terminal device supports the terminal device to transmit X Bytes of uplink data and / or Y Bytes of downlink data.

[0306] In some implementations, the time indicating the fourth information can be indicated before the time at which the energy harvested by the terminal device supports the terminal device to perform wireless transmission.

[0307] In some other implementations, the time indicating the fourth information can be indicated at the time at which the energy harvested by the terminal device supports the terminal device to perform wireless transmission.

[0308] The above describes, in combination with Embodiment 1, Embodiment 2, Embodiment 3, Embodiment 4, and Embodiment 5, respectively, a plurality of solutions that are helpful to solve a plurality of problems of the conventional paging mechanism. In some implementations, Embodiment 1, Embodiment 2, Embodiment 3, Embodiment 4, and Embodiment 5 can be used alone. In some other scenarios, Embodiment 1, Embodiment 2, Embodiment 3, Embodiment 4, and Embodiment 5 can be used in combination.

[0309] The above describes, in combination with FIG. 1 to FIG. 12, the method embodiments of the present application in detail, and the following describes, in combination with FIG. 13 to FIG. 16, the device embodiments of the present application in detail. It should be understood that the description of the method embodiments corresponds to the description of the device embodiments, and therefore, the parts not described in detail can be referred to the foregoing method embodiments.

[0310] FIG. 13 is a schematic diagram of a terminal device according to an embodiment of the present application. The terminal device 1300 shown in FIG. 13 includes a determining unit 1310 and a receiving unit 1320.

[0311] The receiving unit 1320 is configured to receive the first paging message sent by the network device.

[0312] The determining unit 1310 is configured to determine whether to respond to or not respond to the first paging message.

[0313] In some embodiments, the terminal device further comprises: a sending unit, configured to send, to the network device, first information, if the terminal device determines to respond to the first paging message and the terminal device determines to establish a connection with the network device, the first information being used to indicate one or more of: energy of the terminal device; wireless signal quality of the terminal device; uplink data amount that can be transmitted by the energy of the terminal device and / or the wireless signal quality of the terminal device; downlink data amount that can be transmitted by the energy of the terminal device and / or the wireless signal quality of the terminal device; whether the energy of the terminal device and / or the wireless signal quality of the terminal device supports transmission of the uplink data amount to be transmitted; whether the energy of the terminal device and / or the wireless signal quality of the terminal device supports transmission of the downlink data amount to be transmitted; energy harvesting speed of the terminal device.

[0314] In some embodiments, the terminal device further comprises: a sending unit, configured to send, to the network device, updated first information, if a first condition is met, the sending unit being further configured to send, to the network device, the updated first information, the first condition comprising one or more of: a difference between the wireless signal quality of the terminal device indicated by the first information and the wireless signal quality of the terminal device indicated by the updated first information being greater than a first threshold; information in the first information indicating that the terminal device is capable of completing transmission of the data to be transmitted being invalid; uplink data amount arriving at an access layer of the terminal device after the first information is sent exceeding a second threshold.

[0315] In some embodiments, if the terminal device determines to respond to the first paging message and the terminal device determines not to establish a connection with the network device, the terminal device further comprises: a sending unit, configured to send, to the network device, first information, the first information being used to indicate one or more of: the terminal device having received the first paging message; energy of the terminal device being incapable of completing uplink data transmission; energy of the terminal device being incapable of completing downlink data transmission; first data not having arrived at the terminal device, the first data being to be transmitted together with the data to be transmitted that has arrived at the terminal device; second data not having arrived at the network device, the second data being to be transmitted together with the data to be transmitted that has arrived at the network device; time for which the terminal device is ready to establish a connection with the network device.

[0316] In some embodiments, the terminal device determining to respond or not to respond to the first paging message comprises: the determining unit 1310 being configured to determine to respond or not to respond to the first paging message based on second information, the second information being used to indicate one or more of: energy of the terminal device; wireless signal quality of the terminal device; data amount of the data to be transmitted.

[0317] In some embodiments, the terminal device further includes: if the terminal device determines to respond to the first paging message, the determining unit 1310 is configured to determine whether to establish a connection with the network device based on third information, the third information including one or more of: energy of the terminal device; whether the to-be-transmitted data includes target data; whether the terminal device supports completing transmission of the to-be-transmitted data; wherein the target data is data that times out before a second paging window, and the second paging window is the first paging window after the first paging window.

[0318] In some embodiments, whether the terminal device supports completing transmission of the to-be-transmitted data is determined based on one or more of: energy of the terminal device; wireless signal quality of the terminal device; data volume of the to-be-transmitted data.

[0319] In some embodiments, the terminal device determines whether to establish a connection with the network device based on the third information, including: if the to-be-transmitted data includes the target data, the determining unit 1310 is configured to determine whether to establish the connection based on energy of the terminal device.

[0320] In some embodiments, the terminal device determines whether to establish a connection with the network device based on the third information, including: if the to-be-transmitted data does not include the target data, the determining unit 1310 is configured to determine whether to establish the connection based on whether the terminal device supports completing transmission of the to-be-transmitted data.

[0321] In some embodiments, the first paging message is transmitted within a first paging window, and a length of the first paging window is associated with one or more of: a manner in which the terminal device acquires energy; and efficiency of the terminal device in acquiring energy.

[0322] In some embodiments, the first paging message carries information indicating a paging cause, the paging cause including one or more of: to-be-transmitted downlink data; determining whether the terminal device has to-be-transmitted uplink data; and inventorying the terminal device.

[0323] In some embodiments, the first paging message is used to page a first paging group, and the terminal device further includes: an indicating unit configured to indicate, by a non-access stratum or application layer of the terminal device, to an access layer of the terminal device whether the first paging group includes the terminal device.

[0324] In some embodiments, the first paging message is used for paging a first paging group, and the terminal device further includes: the determining unit 1310 is further configured to determine, by an access layer of the terminal device, whether the first paging group includes the terminal device based on a paging group to which the terminal device belongs.

[0325] In some embodiments, the terminal device further includes: an indicating unit configured to indicate, by a non-access layer or an application layer of the terminal device, a paging group to which the terminal device belongs to an access layer of the terminal device.

[0326] In some embodiments, the terminal device belongs to a first paging group and a second paging group, the first paging message is used for paging the first paging group, and the terminal device further includes: a sending unit configured to send, to the network device, to-be-transmitted data associated with the first paging group and / or to-be-transmitted data associated with the second paging group.

[0327] In some embodiments, the terminal device further includes:

[0328] The receiving unit is configured to not listen to a paging message used for paging the second paging group in a first time period, the first time period being configured by the network device.

[0329] In some embodiments, the terminal device further includes: an indicating unit configured to indicate, by an access layer of the terminal device, fourth information to a non-access layer or an application layer of the terminal device, the fourth information being used for indicating that energy collected by the terminal device supports a time for wireless transmission of the terminal device and / or that the energy collected by the terminal device supports a target data amount for transmission of the terminal device; wherein the target data amount is configured by the network device.

[0330] FIG. 14 is a schematic diagram of a network device according to an embodiment of the present application. The network device 1400 shown in FIG. 14 includes a sending unit 1410 and a receiving unit 1420.

[0331] The sending unit 1410 is configured to send a first paging message to a terminal device.

[0332] The receiving unit 1420 is configured to receive response information sent by the terminal device for the first paging message, wherein transmission of the response information is determined based on energy of the terminal device.

[0333] In some embodiments, the network device further includes: the receiving unit 1410 is further configured to receive first information sent by the terminal device, the first information being used to indicate one or more of: energy of the terminal device; wireless signal quality of the terminal device; uplink data amount that the energy and / or the wireless signal quality of the terminal device support for transmission; downlink data amount that the energy and / or the wireless signal quality of the terminal device support for transmission; whether the energy and / or the wireless signal quality of the terminal device support transmission of the uplink data amount to be transmitted; whether the energy and / or the wireless signal quality of the terminal device support transmission of the downlink data amount to be transmitted; energy harvesting speed of the terminal device.

[0334] In some embodiments, the network device further includes: the receiving unit 1420 is further configured to receive updated first information sent by the terminal device, when a first condition is met, the first condition including one or more of: a difference between the wireless signal quality of the terminal device indicated by the first information and the wireless signal quality of the terminal device indicated by the updated first information is greater than a first threshold; information indicating that the terminal device is capable of completing transmission of data to be transmitted in the first information is invalid; uplink data amount arriving at an access layer of the terminal device after the first information is sent exceeds a second threshold.

[0335] In some embodiments, the first paging message is transmitted within a first paging window, a length of the first paging window is associated with one or more of: a manner in which the terminal device harvests energy; efficiency of the terminal device harvesting energy.

[0336] In some embodiments, the first paging message carries information used to indicate a paging cause, the paging cause including one or more of: downlink data to be transmitted; determining whether the terminal device has uplink data to be transmitted; inventorying the terminal device.

[0337] In some embodiments, the network device further includes: an indicating unit, configured to indicate, by the access network device, fourth information to an application server or a core network element, the fourth information being used to indicate a time for which energy harvested by the terminal device supports wireless transmission of the terminal device, and / or a target data amount that the energy harvested by the terminal device supports transmission of; wherein the fourth information is determined by the access network device based on energy harvesting speed of the terminal device.

[0338] FIG. 15 is a schematic diagram of a network device according to an embodiment of the present application. The network device 1500 shown in FIG. 15 includes a receiving unit 1510.

[0339] If the terminal device determines to establish a connection with the network device, the receiving unit 1510 is configured to receive first information sent by the terminal device, the first information being used to indicate one or more of the following: energy of the terminal device; wireless signal quality of the terminal device; uplink data amount that can be supported by the energy of the terminal device and / or the wireless signal quality of the terminal device for transmission; downlink data amount that can be supported by the energy of the terminal device and / or the wireless signal quality of the terminal device for transmission; whether the energy of the terminal device and / or the wireless signal quality of the terminal device supports transmission of the uplink data amount to be transmitted; whether the energy of the terminal device and / or the wireless signal quality of the terminal device supports transmission of the downlink data amount to be transmitted; and energy harvesting speed of the terminal device.

[0340] In some implementations, the network device further includes: a first condition is met, and the receiving unit 1510 is further configured to receive updated first information sent by the terminal device, the first condition including one or more of the following: a difference between the wireless signal quality of the terminal device indicated by the first information and the wireless signal quality of the terminal device indicated by the updated first information is greater than a first threshold; information indicating that the terminal device is capable of completing transmission of the data to be transmitted in the first information is invalid; and uplink data amount of an access layer of the terminal device arriving after the first information is sent exceeds a second threshold.

[0341] In some implementations, if the terminal device determines not to establish a connection with the network device, the network device further includes: the receiving unit 1510 is configured to receive first information sent by the terminal device, the first information being used to indicate one or more of the following: the terminal device has received the first paging message; the energy of the terminal device is unable to complete uplink data transmission; the energy of the terminal device is unable to complete downlink data transmission; first data has not arrived at the terminal device, the first data being transmitted together with the data to be transmitted that has arrived at the terminal device; second data has not arrived at the network device, the second data being transmitted together with the data to be transmitted that has arrived at the network device; and time when the terminal device is ready to establish a connection with the network device.

[0342] In an optional embodiment, the determining unit 1310 can be a processor 1610, and the receiving unit 1320 can be a transceiver 1630. The terminal device 1300 can further include a memory 1620, as shown in FIG. 16.

[0343] In an optional embodiment, the sending unit 1410 can be a transceiver 1630, and the receiving unit 1420 can be a transceiver 1630. The network device 1400 can further include a processor 1610 and a memory 1620, as shown in FIG. 16.

[0344] In an optional embodiment, the receiving unit 1510 can be a transceiver 1630. The network device 1500 can further include a processor 1610 and a memory 1620, as shown in FIG. 16.

[0345] FIG. 16 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application. The dashed line in FIG. 16 indicates that the unit or module is optional. The apparatus 1600 can be used to implement the method described in the foregoing method embodiments. The apparatus 1600 can be a chip, a terminal device, or a network device.

[0346] The apparatus 1600 can include one or more processors 1610. The processor 1610 can support the apparatus 1600 to implement the method described in the foregoing method embodiments. The processor 1610 can be a general purpose processor or a dedicated processor. For example, the processor can be a central processing unit (CPU). Alternatively, the processor can also be other general purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic, discrete hardware components, etc. The general purpose processor can be a microprocessor or the processor can also be any conventional processor.

[0347] The apparatus 1600 can further include one or more memories 1620. The memory 1620 stores a program, which can be executed by the processor 1610, so that the processor 1610 performs the method described in the foregoing method embodiments. The memory 1620 can be independent of the processor 1610 or integrated in the processor 1610.

[0348] The apparatus 1600 can further include a transceiver 1630. The processor 1610 can communicate with other devices or chips through the transceiver 1630. For example, the processor 1610 can perform data transceiving with other devices or chips through the transceiver 1630.

[0349] The embodiments of the present application further provide a computer readable storage medium for storing a program. The computer readable storage medium can be applied to the terminal or network device provided by the embodiments of the present application, and the program causes the computer to execute the method performed by the terminal or network device in the embodiments of the present application.

[0350] The embodiment of the present application further provides a computer program product. The computer program product comprises a program. The computer program product can be applied to the terminal or the network device provided by the embodiment of the present application, and the program causes the computer to execute the method performed by the terminal or the network device in various embodiments of the present application.

[0351] The embodiment of the present application further provides a computer program. The computer program can be applied to the terminal or the network device provided by the embodiment of the present application, and the computer program causes the computer to execute the method performed by the terminal or the network device in various embodiments of the present application.

[0352] It should be understood that the terms "system" and "network" can be used interchangeably in the present application. In addition, the terms used in the present application are only used to explain the specific embodiments of the present application, and are not intended to limit the present application. The terms "first", "second", "third", and "fourth" and the like in the specification and claims of the present application and the drawings are used to distinguish different objects, and are not used to describe a particular order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0353] In the embodiments of the present application, the "indication" mentioned can be direct indication, or indirect indication, or can represent an associated relationship. For example, A indicates B, which can mean that B can be obtained by A, or A indirectly indicates B, for example, A indicates C, and B can be obtained by C, or A and B have an associated relationship.

[0354] In the embodiments of the present application, the "protocol" can refer to a standard protocol in the communication field, which can include the LTE protocol, the NR protocol, and the related protocol applied to the future communication system, and the present application does not limit this.

[0355] In the embodiments of the present application, the term "and / or" is only used to describe the associated relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects have an "or" relationship.

[0356] In various embodiments of the present application, the size of the serial number of the above processes does not mean the order of execution, and the execution order of the processes should be determined according to its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0357] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method can be implemented by other manners. For example, the above-described device embodiments are merely illustrative, for example, the division of the units is merely a logical function division, and in actual implementation, another division manner can be adopted, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interfaces, devices or units, and can be electrical, mechanical or other forms.

[0358] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, i.e., can be located in one place or can be distributed to a plurality of network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.

[0359] In addition, the functional units in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit.

[0360] In the above embodiments, all or part can be realized by software, hardware, firmware or any combination thereof. When realized by software, all or part can be realized in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network or other programmable device. The computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another, for example, the computer instructions can be transferred from one website, computer, server or data center to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) manner. The computer readable storage medium can be any available medium readable by a computer or a data storage device such as a server, data center, etc. integrated with one or more available media. The available media can be magnetic media (for example, floppy disk, hard disk, magnetic tape), optical media (for example, digital video disc (DVD)) or semiconductor media (for example, solid state disk (SSD)) and the like.

[0361] The above descriptions are only the specific embodiments of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method for wireless communication, characterized in that, include: The terminal device receives the first paging message sent by the network device; The terminal device determines whether to respond to the first paging message.

2. The method as described in claim 1, characterized in that, The method further includes: If the terminal device determines to respond to the first paging message and determines to establish a connection with the network device, the terminal device sends first information to the network device, the first information indicating one or more of the following: The energy of the terminal device; The wireless signal quality of the terminal device; The amount of uplink data that the terminal device's power and / or wireless signal quality support can be transmitted. The amount of downlink data that the terminal device's power and / or wireless signal quality support can be transmitted. Whether the power of the terminal device and / or the wireless signal quality of the terminal device support the transmission of the amount of uplink data to be transmitted; Whether the power of the terminal device and / or the wireless signal quality of the terminal device support the amount of downlink data to be transmitted; The energy harvesting speed of the terminal device.

3. The method as described in claim 2, characterized in that, The method further includes: When a first condition is met, the terminal device sends the updated first information to the network device, wherein the first condition includes one or more of the following: The difference between the wireless signal quality of the terminal device indicated by the first information and the wireless signal quality of the terminal device indicated by the updated first information is greater than a first threshold. The information in the first message indicating that the terminal device is capable of transmitting the data to be transmitted has become invalid. After the first information is sent, the amount of uplink data arriving at the access layer of the terminal device exceeds the second threshold.

4. The method as described in claim 1, characterized in that, If the terminal device determines to respond to the first paging message, and the terminal device determines not to establish a connection with the network device, the method further includes: The terminal device sends first information to the network device, the first information being used to indicate one or more of the following: The terminal device has received the first paging message; The terminal device lacks the energy to complete the uplink data transmission. The terminal device lacks the energy to complete downlink data transmission. If the first data does not reach the terminal device, the first data is transmitted together with the data to be transmitted that has already reached the terminal device. The second data has not yet arrived at the network device, and the second data is transmitted together with the data to be transmitted that has already arrived at the network device. The time for the terminal device to prepare to establish a connection with the network device.

5. The method according to any one of claims 1-4, characterized in that, The terminal device determines whether to respond to or not respond to the first paging message, including: The terminal device determines whether to respond to or not respond to the first paging message based on second information, wherein the second information is used to indicate one or more of the following: The energy of the terminal device; The wireless signal quality of the terminal device; The amount of data to be transmitted.

6. The method according to any one of claims 1-5, characterized in that, The method further includes: If the terminal device determines to respond to the first paging message, the terminal device determines whether to establish a connection with the network device based on third information, wherein the third information includes one or more of the following: The energy of the terminal device; Does the data to be transmitted include the target data? Does the terminal device support the transmission of the data to be transmitted? The target data refers to the data that timed out before the second paging window, and the second paging window is the first paging window after the first paging window.

7. The method as described in claim 6, characterized in that, Whether the terminal device supports the transmission of the data to be transmitted is determined based on one or more of the following: The energy of the terminal device; The wireless signal quality of the terminal device; The amount of data to be transmitted.

8. The method as described in claim 6 or 7, characterized in that, The terminal device determines whether to establish a connection with the network device based on the third information, including: If the data to be transmitted includes the target data, the terminal device determines whether to establish the connection based on the terminal device's energy.

9. The method according to any one of claims 6-8, characterized in that, The terminal device determines whether to establish a connection with the network device based on the third information, including: If the data to be transmitted does not include the target data, the terminal device determines whether to establish the connection based on whether the terminal device supports the transmission of the data to be transmitted.

10. The method according to any one of claims 1-9, characterized in that, The first paging message is transmitted within a first paging window, the length of which is associated with one or more of the following: The method by which the terminal device obtains energy; The efficiency of the terminal device in acquiring energy.

11. The method according to any one of claims 1-10, characterized in that, The first paging message carries information indicating the paging reason, which includes one or more of the following: Downlink data awaiting transmission; Determine whether the terminal device has uplink data to be transmitted; An inventory of the terminal devices was conducted.

12. The method according to any one of claims 1-11, characterized in that, The first paging message is used to page the first paging group, and the method further includes: The non-access layer or application layer of the terminal device indicates to the access layer of the terminal device whether the first paging group includes the terminal device.

13. The method according to any one of claims 1-11, characterized in that, The first paging message is used to page the first paging group, and the method further includes: The access layer of the terminal device determines whether the first paging group includes the terminal device based on the paging group to which the terminal device belongs.

14. The method as described in claim 13, characterized in that, The method further includes: The non-access layer or application layer of the terminal device indicates the paging group to which the terminal device belongs to the access layer.

15. The method according to any one of claims 1-14, characterized in that, The terminal device belongs to the first paging group and the second paging group, and the first paging message is used to paging the first paging group. The method further includes: The terminal device sends the data to be transmitted associated with the first paging group and / or the data to be transmitted associated with the second paging group to the network device.

16. The method as described in claim 15, characterized in that, The method further includes: The terminal device does not listen to paging messages for paging the second paging group during a first time period, which is configured by the network device.

17. The method according to any one of claims 1-16, characterized in that, The method further includes: The access layer of the terminal device indicates fourth information to the non-access layer or application layer of the terminal device. The fourth information is used to indicate the time for which the energy collected by the terminal device supports the terminal device to perform wireless transmission, and / or the amount of target data that the energy collected by the terminal device supports the terminal device to transmit. The target data volume is configured by the network device.

18. A method for wireless communication, characterized in that, include: The network device sends the first paging message to the terminal device; The network device receives response information from the terminal device in response to the first paging message, wherein the transmission of the response information is determined based on the energy of the terminal device.

19. The method as described in claim 18, characterized in that, The method further includes: The network device receives first information sent by the terminal device, the first information being used to indicate one or more of the following: The energy of the terminal device; The wireless signal quality of the terminal device; The power of the terminal device and / or the quality of the wireless signal of the terminal device support the amount of uplink data to be transmitted. The power of the terminal device and / or the quality of the wireless signal of the terminal device support the amount of downlink data to be transmitted; Whether the power of the terminal device and / or the quality of the wireless signal of the terminal device support the transmission of the amount of uplink data to be transmitted; Whether the power of the terminal device and / or the quality of the wireless signal of the terminal device support the transmission of the downlink data to be transmitted; The energy harvesting speed of the terminal device.

20. The method as described in claim 19, characterized in that, The method further includes: If a first condition is met, the network device receives the updated first information sent by the terminal device, wherein the first condition includes one or more of the following: The difference between the wireless signal quality of the terminal device indicated by the first information and the wireless signal quality of the terminal device indicated by the updated first information is greater than a first threshold. The information in the first message indicating that the terminal device is capable of transmitting the data to be transmitted has become invalid. After the first information is sent, the amount of uplink data arriving at the access layer of the terminal device exceeds the second threshold.

21. The method according to any one of claims 18-20, characterized in that, The first paging message is transmitted within a first paging window, the length of which is associated with one or more of the following: The method by which the terminal device obtains energy; The efficiency of the terminal device in acquiring energy.

22. The method according to any one of claims 18-21, characterized in that, The first paging message carries information indicating the paging reason, which includes one or more of the following: Downlink data awaiting transmission; Determine whether the terminal device has uplink data to be transmitted; An inventory of the terminal devices was conducted.

23. The method according to any one of claims 18-22, characterized in that, The method further includes: The access network device indicates fourth information to the application server or core network element. The fourth information is used to indicate the time for which the energy collected by the terminal device supports the terminal device to perform wireless transmission, and / or the amount of target data that the energy collected by the terminal device supports the terminal device to transmit. The fourth piece of information is determined by the access network device based on the energy harvesting speed of the terminal device.

24. A method for wireless communication, characterized in that, include: If the terminal device determines to establish a connection with the network device, the network device receives first information sent by the terminal device, the first information indicating one or more of the following: The energy of the terminal device; The wireless signal quality of the terminal device; The power of the terminal device and / or the quality of the wireless signal of the terminal device support the amount of uplink data to be transmitted. The power of the terminal device and / or the quality of the wireless signal of the terminal device support the amount of downlink data to be transmitted; Whether the power of the terminal device and / or the quality of the wireless signal of the terminal device support the transmission of the amount of uplink data to be transmitted; Whether the power of the terminal device and / or the quality of the wireless signal of the terminal device support the transmission of the downlink data to be transmitted; The energy harvesting speed of the terminal device.

25. The method as described in claim 24, characterized in that, The method further includes: If a first condition is met, the network device receives the updated first information sent by the terminal device, wherein the first condition includes one or more of the following: The difference between the wireless signal quality of the terminal device indicated by the first information and the wireless signal quality of the terminal device indicated by the updated first information is greater than a first threshold. The information in the first message indicating that the terminal device is capable of transmitting the data to be transmitted has become invalid. After the first information is sent, the amount of uplink data arriving at the access layer of the terminal device exceeds the second threshold.

26. The method as described in claim 24, characterized in that, If the terminal device determines that it will not establish a connection with the network device, the method further includes: The network device receives the first information sent by the terminal device, the first information being used to indicate one or more of the following: The terminal device has received the first paging message; The terminal device lacks the energy to complete the uplink data transmission. The terminal device lacks the energy to complete downlink data transmission. If the first data does not reach the terminal device, the first data is transmitted together with the data to be transmitted that has already reached the terminal device. The second data has not yet arrived at the network device, and the second data is transmitted together with the data to be transmitted that has already arrived at the network device. The time for the terminal device to prepare to establish a connection with the network device.

27. A terminal device, characterized in that, include: The receiving unit is used to receive the first paging message sent by the network device; The determining unit is used to determine whether to respond to the first paging message or not.

28. The terminal device as described in claim 27, characterized in that, The terminal device also includes: If the terminal device determines to respond to the first paging message, and the terminal device determines to establish a connection with the network device, then... A sending unit is configured to send first information to the network device, the first information indicating one or more of the following: The energy of the terminal device; The wireless signal quality of the terminal device; The amount of uplink data that the terminal device's power and / or wireless signal quality support can be transmitted. The amount of downlink data that the terminal device's power and / or wireless signal quality support can be transmitted. Whether the power of the terminal device and / or the wireless signal quality of the terminal device support the transmission of the amount of uplink data to be transmitted; Whether the power of the terminal device and / or the wireless signal quality of the terminal device support the amount of downlink data to be transmitted; The energy harvesting speed of the terminal device.

29. The terminal device as described in claim 28, characterized in that, The terminal device also includes: If the first condition is met, the sending unit is further configured to send the updated first information to the network device, wherein the first condition includes one or more of the following: The difference between the wireless signal quality of the terminal device indicated by the first information and the wireless signal quality of the terminal device indicated by the updated first information is greater than a first threshold. The information in the first message indicating that the terminal device is capable of transmitting the data to be transmitted has become invalid. After the first information is sent, the amount of uplink data arriving at the access layer of the terminal device exceeds the second threshold.

30. The terminal device as described in claim 27, characterized in that, If the terminal device determines to respond to the first paging message, and the terminal device determines not to establish a connection with the network device, the terminal device further includes: The sending unit is configured to send the first information to the network device, wherein the first information is used to indicate one or more of the following: The terminal device has received the first paging message; The terminal device lacks the energy to complete the uplink data transmission. The terminal device lacks the energy to complete downlink data transmission. If the first data does not reach the terminal device, the first data is transmitted together with the data to be transmitted that has already reached the terminal device. The second data has not yet arrived at the network device, and the second data is transmitted together with the data to be transmitted that has already arrived at the network device. The time for the terminal device to prepare to establish a connection with the network device.

31. The terminal device as described in any one of claims 27-30, characterized in that, The terminal device determines whether to respond to or not respond to the first paging message, including: The determining unit is configured to determine whether to respond to or not respond to the first paging message based on second information, wherein the second information is configured to indicate one or more of the following: The energy of the terminal device; The wireless signal quality of the terminal device; The amount of data to be transmitted.

32. The terminal device as described in any one of claims 27-31, characterized in that, The terminal device also includes: If the terminal device determines to respond to the first paging message, the determining unit is configured to determine, based on third information, whether to establish a connection with the network device, wherein the third information includes one or more of the following: The energy of the terminal device; Does the data to be transmitted include the target data? Does the terminal device support the transmission of the data to be transmitted? The target data refers to the data that timed out before the second paging window, and the second paging window is the first paging window after the first paging window.

33. The terminal device as described in claim 32, characterized in that, Whether the terminal device supports the transmission of the data to be transmitted is determined based on one or more of the following: The energy of the terminal device; The wireless signal quality of the terminal device; The amount of data to be transmitted.

34. The terminal device as described in claim 32 or 33, characterized in that, The terminal device determines whether to establish a connection with the network device based on the third information, including: If the data to be transmitted includes the target data, the determining unit is used to determine whether to establish the connection based on the energy of the terminal device.

35. The terminal device as described in any one of claims 32-34, characterized in that, The terminal device determines whether to establish a connection with the network device based on the third information, including: If the data to be transmitted does not include the target data, the determining unit is used to determine whether to establish the connection based on whether the terminal device supports the transmission of the data to be transmitted.

36. The terminal device as described in any one of claims 27-35, characterized in that, The first paging message is transmitted within a first paging window, the length of which is associated with one or more of the following: The method by which the terminal device obtains energy; The efficiency of the terminal device in acquiring energy.

37. The terminal device as described in any one of claims 27-35, characterized in that, The first paging message carries information indicating the paging reason, which includes one or more of the following: Downlink data awaiting transmission; Determine whether the terminal device has uplink data to be transmitted; An inventory of the terminal devices was conducted.

38. The terminal device as described in any one of claims 27-37, characterized in that, The first paging message is used to page the first paging group, and the terminal device further includes: An indication unit is used to indicate to the access layer of the terminal device whether the first paging group includes the terminal device, either from the non-access layer or the application layer of the terminal device.

39. The terminal device as described in any one of claims 27-37, characterized in that, The first paging message is used to page the first paging group, and the terminal device further includes: The determining unit is further configured to determine, based on the paging group to which the terminal device belongs, whether the first paging group includes the terminal device.

40. The terminal device as described in claim 39, characterized in that, The terminal device also includes: An indication unit is used for the non-access layer or application layer of the terminal device to indicate the paging group to which the terminal device belongs to the access layer of the terminal device.

41. The terminal device as described in any one of claims 27-40, characterized in that, The terminal device belongs to the first paging group and the second paging group, and the first paging message is used to paging the first paging group. The terminal device also includes: The sending unit is configured to send the data to be transmitted associated with the first paging group and / or the data to be transmitted associated with the second paging group to the network device.

42. The terminal device as described in claim 41, characterized in that, The terminal device also includes: The receiving unit is configured not to listen to paging messages for paging the second paging group during a first time period, which is configured by the network device.

43. The terminal device as described in any one of claims 27-42, characterized in that, The terminal device also includes: An indication unit is used for the access layer of the terminal device to indicate fourth information to the non-access layer or application layer of the terminal device. The fourth information is used to indicate the time for which the energy collected by the terminal device supports the terminal device to perform wireless transmission, and / or the amount of target data that the energy collected by the terminal device supports the terminal device to transmit. The target data volume is configured by the network device.

44. A network device, characterized in that, include: The sending unit is used to send a first paging message to the terminal device; A receiving unit is configured to receive response information sent by the terminal device in response to the first paging message, wherein the transmission of the response information is determined based on the energy of the terminal device.

45. The network device as described in claim 44, characterized in that, The network device also includes: The receiving unit is further configured to receive first information sent by the terminal device, the first information being used to indicate one or more of the following: The energy of the terminal device; The wireless signal quality of the terminal device; The power of the terminal device and / or the quality of the wireless signal of the terminal device support the amount of uplink data to be transmitted. The power of the terminal device and / or the quality of the wireless signal of the terminal device support the amount of downlink data to be transmitted; Whether the power of the terminal device and / or the quality of the wireless signal of the terminal device support the transmission of the amount of uplink data to be transmitted; Whether the power of the terminal device and / or the quality of the wireless signal of the terminal device support the transmission of the downlink data to be transmitted; The energy harvesting speed of the terminal device.

46. ​​The network device as described in claim 45, characterized in that, The network device also includes: If the first condition is met, the receiving unit is further configured to receive the updated first information sent by the terminal device, wherein the first condition includes one or more of the following: The difference between the wireless signal quality of the terminal device indicated by the first information and the wireless signal quality of the terminal device indicated by the updated first information is greater than a first threshold. The information in the first message indicating that the terminal device is capable of transmitting the data to be transmitted has become invalid. After the first information is sent, the amount of uplink data arriving at the access layer of the terminal device exceeds the second threshold.

47. The network device as described in any one of claims 44-46, characterized in that, The first paging message is transmitted within a first paging window, the length of which is associated with one or more of the following: The method by which the terminal device obtains energy; The efficiency of the terminal device in acquiring energy.

48. The network device as described in any one of claims 44-47, characterized in that, The first paging message carries information indicating the paging reason, which includes one or more of the following: Downlink data awaiting transmission; Determine whether the terminal device has uplink data to be transmitted; An inventory of the terminal devices was conducted.

49. The network device as described in any one of claims 44-48, characterized in that, The network device also includes: An instruction unit is used for the access network device to indicate fourth information to the application server or core network element, wherein the fourth information is used to indicate the time for which the energy collected by the terminal device supports the terminal device to perform wireless transmission, and / or the amount of target data that the energy collected by the terminal device supports the terminal device to transmit. The fourth piece of information is determined by the access network device based on the energy harvesting speed of the terminal device.

50. A network device, characterized in that, include: If the terminal device determines to establish a connection with the network device, the receiving unit is configured to receive first information sent by the terminal device, the first information indicating one or more of the following: The energy of the terminal device; The wireless signal quality of the terminal device; The power of the terminal device and / or the quality of the wireless signal of the terminal device support the amount of uplink data to be transmitted. The power of the terminal device and / or the quality of the wireless signal of the terminal device support the amount of downlink data to be transmitted; Whether the power of the terminal device and / or the quality of the wireless signal of the terminal device support the transmission of the amount of uplink data to be transmitted; Whether the power of the terminal device and / or the quality of the wireless signal of the terminal device support the transmission of the downlink data to be transmitted; The energy harvesting speed of the terminal device.

51. The network device as described in claim 50, characterized in that, The network device also includes: If the first condition is met, the receiving unit is further configured to receive the updated first information sent by the terminal device, wherein the first condition includes one or more of the following: The difference between the wireless signal quality of the terminal device indicated by the first information and the wireless signal quality of the terminal device indicated by the updated first information is greater than a first threshold. The information in the first message indicating that the terminal device is capable of transmitting the data to be transmitted has become invalid. After the first information is sent, the amount of uplink data arriving at the access layer of the terminal device exceeds the second threshold.

52. The network device as described in claim 50, characterized in that, If the terminal device determines not to establish a connection with the network device, the network device further includes: The receiving unit is configured to receive the first information sent by the terminal device, wherein the first information is used to indicate one or more of the following: The terminal device has received the first paging message; The terminal device lacks the energy to complete the uplink data transmission. The terminal device lacks the energy to complete downlink data transmission. If the first data does not reach the terminal device, the first data is transmitted together with the data to be transmitted that has already reached the terminal device. The second data has not yet arrived at the network device, and the second data is transmitted together with the data to be transmitted that has already arrived at the network device. The time for the terminal device to prepare to establish a connection with the network device.

53. A terminal device, characterized in that, The device includes a transceiver, a memory, and a processor. The memory is used to store a program, and the processor is used to invoke the program in the memory and control the transceiver to receive or send signals so that the terminal performs the method as described in any one of claims 1-17.

54. A network device, characterized in that, The device includes a transceiver, a memory, and a processor. The memory stores a program, and the processor invokes the program in the memory and controls the transceiver to receive or transmit signals so that the network device performs the method as described in any one of claims 18-26.

55. An apparatus, characterized in that, Includes a processor for calling a program from memory to cause the device to perform the method as described in any one of claims 1-26.

56. A chip, characterized in that, Includes a processor for calling a program from memory, causing a device on which the chip is mounted to perform the method as described in any one of claims 1-26.

57. A computer-readable storage medium, characterized in that, It contains a program that causes a computer to perform the method as described in any one of claims 1-26.

58. A computer program product, characterized in that, Includes a program that causes a computer to perform the method as described in any one of claims 1-26.

59. A computer program, characterized in that, The computer program causes the computer to perform the method as described in any one of claims 1-26.

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