Method and device used for wireless communication

Abstract

The invention discloses a method and a device used for wireless communication. The first node sends a first wireless signal and monitors a response of the first wireless signal as a response that any condition in the first condition set is satisfied; determining whether the first AIoT device is in proximity based on the monitoring; wherein the condition in which the first AIoT device is determined to be in the vicinity comprises that the response of the first wireless signal is successfully received; at least one condition in the first condition set depends on the downlink quality of the first node; the response of the first wireless signal is transmitted by the first AIoT device. According to the application, the continuity and accuracy of the first node for the AIoT service are improved, and the processing complexity and power consumption of the first node are reduced.

Description

Technical Field

[0001] This application relates to a method and apparatus in a wireless communication system, and particularly to solutions and apparatuses related to the ambient Internet of Things (AIoT) in a wireless communication system. Background Art

[0002] In recent years, the Internet of Things (IoT) has received much attention in the field of wireless communication. Hundreds of billions or even trillions of IoT devices can improve production efficiency and enhance living comfort. Most existing wireless communication devices require manual battery replacement or charging, which results in high maintenance costs and even poses safety hazards in some scenarios (such as wireless sensors in the power and oil industries). Nowadays, the automation and digitization in all industries have opened up many new markets. For example, most industries use barcode and Radio Frequency Identification (RFID) technologies to complete asset identification. However, it is difficult for RFID readers to achieve seamless coverage in densely deployed scenarios. Therefore, new IoT technologies are needed to support battery-free devices without energy storage capabilities or energy storage devices that do not require manual replacement or charging.

[0003] The 3rd Generation Partnership Project (3GPP) started researching Ambient Internet of Things (AIoT) in Release 18. This system targets extremely low-end IoT applications and relies on ultra-low complexity devices and ultra-low power technologies. These ultra-low complexity devices are called AIoT devices. An AIoT device is an IoT device powered by energy harvesting, either battery-free or with limited energy storage capabilities (e.g., using capacitors).

[0004] In the continuation research phase of R19, 3GPP determined to support three types of AIoT devices that all have energy storage capabilities but different signal processing capabilities. In an AIoT system, the Reader function can be deployed in a User Equipment (UE) or a base station, and is mainly responsible for discovering nearby AIoT devices and performing operations related to AIoT commands on them (such as reading / writing data, etc.). Based on the research progress of R19, the Reader can, according to the instructions of an AIoT function controller (such as a core network element supporting AIoT functions), realize data interaction with nearby AIoT devices through a wireless connection with the AIoT devices. Summary of the Invention

[0005] The applicant has found through research that when the AIoT function is introduced, in addition to discovering the basic process (Inventory procedure) of AIoT devices, the timing for the Reader to determine the presence of nearby AIoT devices in other scenarios is not clear, which is not conducive to improving the continuity and accuracy of AIoT services.

[0006] In response to the above problems, the present application discloses a solution. It should be noted that although the original intention of the present application is for the wireless interface between AIoT devices and the Reader, the present application can also be used for the Uu interface, V2X interface, or PC5 interface, achieving technical effects similar to those of the wireless air interface between AIoT devices and the Reader. In addition, adopting a unified solution in different scenarios helps to reduce hardware complexity and cost. Without conflict, the embodiments and features in the embodiments in any node of the present application can be applied to any other node. Without conflict, the embodiments and features in the embodiments of the present application can be combined with each other arbitrarily.

[0007] When needed, the interpretation of the terms (Terminology) in the present application refers to the definitions in the 3GPP specification protocol series TS38; or, refers to the definitions in the 3GPP specification protocol series TS22; or, refers to the definitions in the 3GPP specification protocol series TS23; or, refers to the definitions in the 3GPP specification protocol series TS24.

[0008] The present application discloses a method in a first node used for wireless communication, characterized by including:

[0009] In response to any condition in a first set of conditions being satisfied, send a first wireless signal and monitor the response to the first wireless signal; determine whether a first AIoT device is nearby based on the monitoring;

[0010] Wherein, the condition for determining that the first AIoT device is nearby includes that the response to the first wireless signal is successfully received; at least one condition in the first set of conditions depends on the downlink quality of the first node; the response to the first wireless signal is sent by the first AIoT device.

[0011] In the above method, the first node can respond promptly to the downlink quality, which is beneficial to improving the continuity and accuracy of the first node for AIoT services. In addition, the above method is beneficial to reducing the processing complexity and power consumption of the first node.

[0012] Specifically, according to one aspect of the present application, the above method is characterized in that the condition for determining that the first AIoT device is nearby further includes:

[0013] The reception quality of the signal from the first AIoT device exceeds a first threshold.

[0014] The above aspects can improve the fineness of the first node in determining whether there is an AIoT device nearby, which is beneficial for the first node to manage the AIoT devices at the coverage edge in a targeted manner.

[0015] Specifically, according to an aspect of the present application, the above method is characterized in that it includes:

[0016] Send a first signaling, and the indication of the first signaling depends on whether the response of the first radio signal is successfully received.

[0017] The above aspects are beneficial for improving the flexibility and diversity of the indication information of the first node, and assisting the network or other Readers to manage the AIoT service based on whether there is an AIoT device near the first node.

[0018] Specifically, according to an aspect of the present application, the above method is characterized in that it includes:

[0019] Receive a second signaling, and the second signaling includes the configuration information of the AIoT;

[0020] Wherein, the second signaling is triggered by the first signaling.

[0021] In the above aspects, the first node can obtain the configuration information related to the AIoT service, which is beneficial for improving the flexibility and accuracy of the first node for the AIoT service.

[0022] Specifically, according to an aspect of the present application, the above method is characterized in that it includes:

[0023] As a response to determining that the first AIoT device is nearby based on the monitoring, start a first timer;

[0024] Wherein, the first timer is used to indicate the duration of maintaining the connection with the first AIoT device.

[0025] The above aspects are beneficial for ensuring the service continuity of the AIoT device near the first node and improving the efficiency and experience of the AIoT service.

[0026] Specifically, according to an aspect of the present application, the above method is characterized in that it includes:

[0027] As a response to determining that the first AIoT device is not nearby based on the monitoring, release the connection to the first AIoT device.

[0028] The above aspects are beneficial for reducing the unnecessary resource overhead and power consumption of the first node, and thus beneficial for improving the resource utilization rate of the first node.

[0029] Specifically, according to one aspect of the present application, the method is characterized in that the first condition set includes at least one of the following conditions:

[0031] Resource overload;

[0032] AIoT function de-authorized.

[0033] The above aspect enables the first node to respond in a timely manner in case of resource shortage or de-authorized AIoT function, which is beneficial to ensuring the service continuity of AIoT devices near the first node.

[0034] Specifically, according to one aspect of the present application, the method is characterized in that the at least one condition in the first condition set includes at least one of the following conditions:

[0035] The serving cell is worse than a second threshold;

[0036] The neighboring cell is better than a first offset value of a special cell;

[0037] The neighboring cell is better than a third threshold;

[0038] The special cell is worse than a fourth threshold and the neighboring cell or the secondary cell is better than a fifth threshold;

[0039] The neighboring cell is better than a second offset value of the secondary cell;

[0040] At least one condition handover CHO candidate cell satisfies the corresponding CHO execution condition;

[0041] Radio Resource Control RRC connection fails.

[0042] The above aspect enables the first node to respond in advance in case of deteriorating downlink quality, which is not only beneficial to the network's connection control of the first node, but also can ensure the service continuity of AIoT devices near the first node.

[0043] Specifically, according to one aspect of the present application, the method is characterized in that the first condition set includes at least one of the following conditions:

[0045] Handover occurs;

[0046] RRC connection re-establishment occurs.

[0047] The above aspects enable the first node to respond in a timely manner in the event of a handover or RRC connection re - establishment, which is not only beneficial to the network's resource allocation for the first node and the management of AIoT services, but also ensures the service continuity of AIoT devices near the first node.

[0048] This application discloses a first node for use in wireless communication, characterized by including:

[0049] The first node includes: one or more processors and a memory;

[0050] The memory is coupled to the one or more processors, and the memory is used to store computer program code. The computer program code includes computer instructions, and the one or more processors call the computer instructions to cause the first node to execute the method in the first node for use in wireless communication. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] By reading the detailed description of the non - restrictive embodiments with reference to the following drawings, other features, objects, and advantages of the present application will become more apparent:

[0052] Figure 1 Shows a flowchart of the communication of the first node according to an embodiment of the present application;

[0053] Figure 2 Shows a schematic diagram of a network architecture according to an embodiment of the present application;

[0054] Figure 3 Shows a schematic diagram of an embodiment of the radio protocol architecture of the user plane and the control plane according to an embodiment of the present application;

[0055] Figure 4 Shows a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application;

[0056] Figure 5 Shows a transmission flowchart between a first node N1 and a second node N2 according to an embodiment of the present application;

[0057] Figure 6 Shows a flowchart of the first signaling for requesting to migrate all or part of the nearby AIoT devices in the case where the second node can work as a Reader according to an embodiment of the present application;

[0058] Figure 7 Shows a flowchart of the first signaling for requesting to migrate all or part of the nearby AIoT devices in the case where the second node is the management node of the first node according to an embodiment of the present application;

[0059] Figure 8 Shows a flowchart of the first node sending the first signaling as a response to determining that there are no AIoT devices nearby according to an embodiment of the present application;

[0060] Figure 9 Shows a flowchart of sending the first signaling under the condition that the first node is instructed to authorize the AIoT function and there is at least one AIoT device near the first node according to an embodiment of the present application;

[0061] Figure 10 Shows a flowchart of sending the first signaling under the condition that the first node requests to authorize the AIoT function and there is at least one AIoT device near the first node according to an embodiment of the present application;

[0062] Figure 11 Shows a flowchart of sending the first signaling in the source cell under the condition that the first node is a user equipment according to an embodiment of the present application;

[0063] Figure 12 Shows a flowchart of sending the first signaling in the target cell under the condition that the first node is a user equipment according to an embodiment of the present application;

[0064] Figure 13 Shows a flowchart of the subsequent behavior of the first node under the condition that the first node is a user equipment and the RRC connection fails according to an embodiment of the present application;

[0065] Figure 14 Shows a structural block diagram of a processing device in a first node according to an embodiment of the present application. Detailed implementation manners

[0066] The technical solutions of the present application will be further described in detail below with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments and features in the embodiments of the present application can be combined arbitrarily. Considering performance, flexibility, complexity, overhead, and compatibility, those skilled in the art have the motivation to flexibly combine the embodiments in different drawings without conflict, including but not limited to the embodiments in Figure 1 the drawings and the embodiments in Figure 5 - Figure 13 in the drawings, the embodiments in Figure 5 the drawings and the embodiments in Figure 6 - Figure 13 in the drawings, and so on.

[0067] Example 1

[0068] Example 1 illustrates a flowchart of the communication of the first node according to an embodiment of the present application, as shown in the appendix Figure 1 as follows. In the first node 100 shown in the appendix Figure 1 as follows, each box represents a step.

[0069] In Example 1, the first node 100, in response to any condition in the first set of conditions being satisfied in step 101, sends a first wireless signal and monitors the response to the first wireless signal; in step 102, determines whether a first AIoT device is nearby based on the monitoring;

[0070] In Example 1, the conditions for determining that the first AIoT device is nearby include that the response to the first wireless signal is successfully received; at least one condition in the first set of conditions depends on the downlink quality of the first node; the response to the first wireless signal is sent by the first AIoT device.

[0071] As an embodiment, the first node works as a Reader.

[0072] As an embodiment, the first node works as a Reader means that the first node includes the Reader function.

[0073] As an embodiment, the first node works as a Reader means that the first node has the Reader capability.

[0074] As an embodiment, the first node works as a Reader means that the first node is authorized as a Reader.

[0075] As an embodiment, the Reader capability includes at least one of the following: discovering an AIoT device; performing a read operation on an AIoT device; performing a write operation on an AIoT device.

[0076] As an embodiment, the first set of conditions includes at least one of the following conditions: resource overload; being de-authorized for the AIoT function.

[0077] As an embodiment, the resource overload means that the resources of the first node are congested.

[0078] As an embodiment, the resource overload means that the management node resources of the first node are congested.

[0079] As an embodiment, the resource overload includes that the resource availability of the first node is lower than threshold #1.

[0080] As an example, the resource overload includes that the resource availability rate of the first node for the AIoT service is lower than threshold #2.

[0081] As an example, the resource overload includes that the resource availability rate of the management node of the first node is lower than threshold #3.

[0082] In the above example, if the management node resources of the first node are overloaded, it will cause a transmission interruption between the first node and the AIoT function controller, which may affect the business continuity between the first node and the nearby AIoT devices.

[0083] As an example, the resource includes computing resources.

[0084] As an example, the resource includes at least one of the following: CPU (Central Processing Unit) resources; GPU (Graphic Processing Unit) resources.

[0085] As an example, the resource includes time-domain resources.

[0086] As an example, the time-domain resources include at least one of the following: radio frames; radio subframes; time slots; OFDM (Orthogonal Frequency Division Multiplexing) symbols; sampling durations.

[0087] As an example, the time-domain resources depend on waveforms.

[0088] As an example, the time-domain resources depend on the length of the OOK (on / off keying) time unit.

[0089] As an example, the time-domain resources depend on the time length of the periodic feature sequence.

[0090] As an example, the time-domain resources depend on the length of the on duration of the WUS (Wake Up Signal).

[0091] As an example, the resource includes frequency-domain resources.

[0092] As an example, the frequency-domain resources include at least one of the following: frequency bands; bandwidths; subcarrier spacings; beams; resource blocks; physical resource blocks.

[0093] As an example, the resource includes space-domain resources.

[0094] As an embodiment, the airspace resources include at least one of the following: codewords; layers; antenna ports.

[0095] As an embodiment, the resources include Instance resources.

[0096] As an embodiment, the Instance resources include the Instance resources after the first node is instantiated.

[0097] As an embodiment, the Instance resources include the Instance resources after the first node is instantiated for the AIoT service.

[0098] As an embodiment, the Instance resources include the Instance resources after the management node of the first node is instantiated.

[0099] As an embodiment, the de-authorized AIoT function means: cannot work as a Reader.

[0100] As an embodiment, the de-authorized AIoT function means: the Reader authorization status changes from authorized to unauthorized.

[0101] As an embodiment, the de-authorized AIoT function means: does not have the Reader capability.

[0102] As an embodiment, the management node of the first node instructs the first node to de-authorize the AIoT function.

[0103] As an embodiment, the first node requests the management node of the first node to de-authorize the AIoT function.

[0104] As an embodiment, at least one of the conditions in the first condition set includes at least one of the following conditions: the serving cell is worse than a second threshold; an adjacent cell is better than a first offset value of a special cell; an adjacent cell is better than a third threshold; the special cell is worse than a fourth threshold and an adjacent cell or a secondary cell is better than a fifth threshold; an adjacent cell is better than a second offset value of a secondary cell; at least one CHO candidate cell meets the corresponding CHO execution condition; an RRC connection fails.

[0105] As an embodiment, the satisfaction of at least one of the conditions in the first condition set means: the downlink quality of the first node does not meet the requirement for continuing the transmission of the first node.

[0106] As an embodiment, the satisfaction of at least one of the conditions in the first condition set means: the first node needs to change the serving cell.

[0107] As an example, the failure of the RRC connection means that an RLF (Radio Link Failure) is detected.

[0108] As an example, the failure of the RRC connection means that an HOF (HandOver Failure) is detected.

[0109] As an example, the failure of the RRC connection means that a failure of RRC reconfiguration (RRC Reconfiguration) is detected.

[0110] As an example, the failure of the RRC connection means that an integrity check (IntegrityCheck) failure is detected.

[0111] As an example, the first set of conditions includes at least one of the following conditions: a handover occurs; an RRC connection re-establishment occurs.

[0112] As an example, the occurrence of the handover means that the handover process is triggered.

[0113] As an example, the occurrence of the handover means that an RRC reconfiguration message for triggering the handover process is received.

[0114] As an example, the occurrence of the handover means that the handover process is completed.

[0115] As an example, the occurrence of the handover means that an RRC reconfiguration complete (RRC Reconfiguration Complete) message for completing the RRC handover process is sent.

[0116] As an example, the occurrence of the RRC connection re-establishment means that an RRC connection re-establishment is requested.

[0117] As an example, the occurrence of the RRC connection re-establishment means that an RRC re-establishment request (RRC Reestablishment Request) message is sent.

[0118] As an example, the occurrence of the RRC connection re-establishment means that the RRC connection re-establishment is completed.

[0119] As an example, the occurrence of the RRC connection re-establishment means that an RRC re-establishment complete (RRC Reestablishment Complete) message is sent.

[0120] As an example, the first wireless signal is an OOK signal.

[0121] As an embodiment, the first wireless signal is an OFDM symbol.

[0122] As an embodiment, the first wireless signal is a characteristic sequence.

[0123] As an embodiment, the first wireless signal is a WUS.

[0124] As an embodiment, the first wireless signal is a PRDCH (Physical Reader to Device Channel).

[0125] As an embodiment, the first wireless signal is downlink AIoT signaling or downlink AIoT data.

[0126] As an embodiment, the response of the first wireless signal is excited by the first wireless signal.

[0127] As an embodiment, the response of the first wireless signal is triggered to be sent by the first wireless signal.

[0128] As an embodiment, the response of the first wireless signal is powered by the first wireless signal.

[0129] As an embodiment, the response of the first wireless signal is a backscatter signal of the first wireless signal.

[0130] As an embodiment, the response of the first wireless signal is an OOK signal.

[0131] As an embodiment, the response of the first wireless signal is a BPSK (Binary Phase Shift Keying) signal.

[0132] As an embodiment, the response of the first wireless signal is an MSK (Minimum Shift Keying) signal.

[0133] As an embodiment, the response of the first wireless signal is an OFDM symbol.

[0134] As an embodiment, the response of the first wireless signal is a characteristic sequence.

[0135] As an embodiment, the response of the first wireless signal is a WUS.

[0136] As an embodiment, the response of the first wireless signal is a PDRCH (Physical Device to Reader Channel).

[0137] As an example, the response to the first wireless signal is an uplink AIoT signaling or uplink AIoT data.

[0138] As an example, the monitoring is energy detection.

[0139] As an example, the monitoring is coherent detection.

[0140] As an example, the monitoring is non - coherent detection.

[0141] As an example, the monitoring is channel decoding.

[0142] As an example, the monitoring includes monitoring the uplink radio interface between the nearby AIoT device and the first node.

[0143] As an example, the monitoring includes monitoring the uplink physical channel between the nearby AIoT device and the first node.

[0144] As an example, the monitoring includes monitoring the PRDCH.

[0145] As an example, the first AIoT device being nearby means that the first AIoT device is within the coverage range of the transceiver signals of the first node.

[0146] As an example, the first AIoT device being nearby means that the first node provides proxy services for the first AIoT device.

[0147] As an example, the first AIoT device being nearby means that the first node maintains the authorization of the proxy services for the first AIoT device.

[0148] As an example, the first AIoT device being nearby means that the first node and the first AIoT device can interact with each other through the radio interface for AIoT signaling or AIoT data.

[0149] As an example, the first AIoT device being nearby means that there is at least one AIoT device near the first node.

[0150] As an example, the condition for the first AIoT device to be determined as being nearby further includes that the reception quality of the signal from the first AIoT device exceeds a first threshold.

[0151] As an example, the signal from the first AIoT device is the response to the first wireless signal.

[0152] As an example, the condition for determining that the first AIoT device is nearby is that the response to the first wireless signal is successfully received.

[0153] As an example, the condition for determining that the first AIoT device is nearby is that the response to the first wireless signal is successfully received, and the reception quality of the signal from the first AIoT device exceeds a first threshold.

[0154] As an example, the unit of the reception quality of the signal is dBm (decibel milliwatt).

[0155] As an example, the unit of the reception quality of the signal is dB (decibel).

[0156] As an example, the reception quality of the signal is RSRP (Reference Signal Received Power).

[0157] As an example, the reception quality of the signal is RSRQ (Reference Signal Received Quality).

[0158] As an example, the reception quality of the signal is RSSI (Received Signal Strength Indicator).

[0159] As an example, the reception quality of the signal is SNR (Signal to Noise Ratio) or SINR (Signal to Interference plus Noise Ratio).

[0160] As an example, the reception quality of the signal is the BLER (Block Error Rate) of the uplink physical channel between the first AIoT device and the first node.

[0161] As an example, the reception quality of the signal is the BLER of the PRDCH.

[0162] As an example, that the first AIoT device is not nearby means that the first AIoT device is not within the coverage range of the transceiver signal of the first node.

[0163] As an example, that the first AIoT device is not nearby means that the first node cannot provide proxy services for the first AIoT device.

[0164] As an example, the fact that the first AIoT device is not nearby means that the first node cannot maintain the authorization of the proxy service for the first AIoT device.

[0165] As an example, the fact that the first AIoT device is not nearby means that the first node and the first AIoT device cannot interact AIoT signaling or AIoT data through a wireless interface.

[0166] As an example, the condition for determining that the first AIoT device is not nearby is that the response of the first wireless signal is not successfully received.

[0167] As an example, the conditions for determining that the first AIoT device is not nearby include at least one of the following: the response of the first wireless signal is not successfully received; the reception quality of the signal from the first AIoT device does not exceed a first threshold.

[0168] As an example, the uplink AIoT signaling refers to D2R (Device to Reader) signaling, and the downlink AIoT signaling refers to R2D (Reader to Device) signaling.

[0169] As an example, the uplink AIoT data refers to D2R data, and the downlink AIoT data refers to R2D data.

[0170] As an example, the fact that the response of the first wireless signal is successfully received means that the response of the first wireless signal is correctly decoded.

[0171] As an example, the fact that the response of the first wireless signal is successfully received means that the response of the first wireless signal passes CRC (Cyclic Redundancy Check).

[0172] As an example, the fact that the response of the first wireless signal is successfully received means that the received energy of the response of the first wireless signal exceeds threshold #4.

[0173] As an example, the fact that the response of the first wireless signal is successfully received means that the coherent detection of the response of the first wireless signal exceeds a first threshold value.

[0174] As an example, the fact that the response of the first wireless signal is successfully received means that the non - coherent detection of the response of the first wireless signal exceeds a second threshold value.

[0175] As an example, the management node of the first node is an access network device connected to the first node.

[0176] As an example, the management node of the first node is a core network device connected to the first node.

[0177] As an example, the core network device connected to the first node can control the AIoT function.

[0178] As an example, the core network device connected to the first node includes an AIoT function controller.

[0179] As an example, the core network device connected to the first node can communicate with the AIoT function controller.

[0180] As an example, the core network device connected to the first node is a proxy node between the first node and the AIoT function controller.

[0181] As an example, the AIoT function controller is an AMF (Access and Mobility Management Function).

[0182] Example 2

[0183] Example 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in the appendix Figure 2 as follows.

[0184] appendix Figure 2Describes the network architecture 200. The network architecture 200 is a 5G NR (New Radio) / LTE (Long-Term Evolution) / LTE-A (Long-Term Evolution Advanced) system, or the network architecture 200 is a 5G+ network architecture, or the network architecture 200 is a 6G network architecture, or the network architecture 200 is a network architecture adopted in the future continuous evolution of 3GPP; the network architecture 200 can be referred to as 5GS (5G System) / EPS (Evolved Packet System), or the network architecture 200 can be referred to as 6GS (6G System); the network architecture 200 includes at least one of UE (User Equipment) 201, RAN (Radio Access Network) 202, core network 210, HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and Internet service 230. The network architecture 200 can be interconnected with other access networks, but these entities / interfaces are not shown for simplicity. As shown in the figure, the network architecture 200 provides packet switching services. However, those skilled in the art will easily understand that the various concepts presented throughout this application can be extended to networks providing circuit switching services or other cellular networks. The RAN includes node 203. The RAN may also include other nodes 204. Node 203 provides user and control plane protocol termination towards UE 201. Node 203 can be connected to other nodes 204 via the Xn interface (e.g., backhaul) / X2 interface. Node 203 can also be referred to as a base station, base transceiver station, radio base station, radio transceiver, transceiver function, basic service set (BSS), extended service set (ESS), TRP (Transmit Receive Point), or some other appropriate term. The AIoT device 205 and other AIoT devices 206 are IoT devices supporting energy harvesting power supply. Examples include RFID tags, RFID cards, radio frequency cards, transponders, or any other similar functional devices. The core network 210 is a 5GC (5G Core Network) / EPC (Evolved Packet Core), or the core network 210 is a 6GC; node 203 provides an access point for UE 201 to the core network 210.Examples of the UE 201 include cellular phones, smart phones, Session Initiation Protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, non-terrestrial base station communications, satellite mobile communications, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband Internet of Things devices, machine type communication devices, land vehicles, automobiles, wearable devices, or any other similar functional devices. Those skilled in the art may also refer to the UE 201 as a mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable term. The node 203 is connected to the core network 210 through the S1 / NG interface. The core network 210 includes a Mobility Management Entity (MME) / Access and Mobility Management Function (AMF) / Session Management Function (SMF) 211, other MME / AMF / SMFs 214, a Serving Gateway (S-GW) / User Plane Function (UPF) 212, a Packet Data Network Gateway (P-GW) / UPF 213, and other nodes not shown in the figure. Figure 2 The MME / AMF / SMF 211 is a control node that processes the signaling between the UE 201 and the core network 210. Generally, the MME / AMF / SMF 211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through the S-GW / UPF 212, which is itself connected to the P-GW / UPF 213. The P-GW / UPF 213 provides UE IP address allocation and other functions. The P-GW / UPF 213 is connected to the Internet service 230. The Internet service 230 includes the operator's corresponding Internet protocol services, which may specifically include the Internet, intranet, IP Multimedia Subsystem (IMS), and Packet Switching services.

[0185] As an embodiment, the core network 210 includes an AIoT function controller, and the AIoT function controller is used to control IoT application services with AIoT devices.

[0186] As an embodiment, the first node includes the UE201.

[0187] As an embodiment, the first node includes the node 203.

[0188] As an embodiment, the wireless link between the UE201 and the node 203 includes a cellular network link.

[0189] As an embodiment, the wireless link between the UE201 and the AIoT device 205 includes a cellular network link.

[0190] As an embodiment, the wireless link between the UE201 and the AIoT device 205 includes a link dedicated to interacting with AIoT signaling and AIoT data.

[0191] As an embodiment, the wireless link between the node 203 and the other AIoT device 206 includes a cellular network link.

[0192] As an embodiment, the wireless link between the node 203 and the other AIoT device 206 includes a link dedicated to interacting with AIoT signaling and AIoT data.

[0193] Example 3

[0194] Embodiment 3 exemplifies a schematic diagram of an embodiment of the radio protocol architecture of the user plane and the control plane according to an embodiment of the present application, as shown in the appendix Figure 3 as shown.

[0195] Embodiment 3 shows a schematic diagram of an embodiment of the radio protocol architecture of a user plane and a control plane according to the present application, as shown in the appendix Figure 3 as shown. Figure 3 It is a schematic diagram illustrating an embodiment of the radio protocol architecture for the user plane 350 and the control plane 300, Figure 3Show the radio protocol architecture of the control plane 300 for a first communication node device (any one of gNB, MME, AMF, UE, Reader, or RSU in V2X) and a second communication node device (any one of AIoT device, UE, gNB, RSU in V2X) with four layers: Layer 1, Layer 2, Layer 3, and NAS layer. Layer 1 (L1 layer) is the lowest layer and implements various PHY (Physical layer) signal processing functions. The L1 layer will be referred to as PHY301 in this article. Layer 2 (L2 layer) 305 is above PHY301 and is responsible for the link between the first communication node device and the second communication node device. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, and these sublayers terminate at the second communication node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by encrypting data packets and provides handover support for the first communication node device between the second communication node devices. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for disordered reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in a cell between the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in Layer 3 (L3 layer) of the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling between the second communication node device and the first communication node device. The NAS (Non-Access Stratum) sublayer 307 in the control plane 300 is used for the transmission of non-access stratum signaling between the first communication node device and the second communication node device, and this signaling transmission is transparent and invisible to the base station. The radio protocol architecture of the user plane 350 includes Layer 1 (L1 layer) and Layer 2 (L2 layer). For the radio protocol architecture of the first communication node device and the second communication node device in the user plane 350, the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355 are generally the same as the corresponding layers and sublayers in the control plane 300, but the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead.The L2 layer 355 in the user plane 350 further includes an SDAP (Service Data Adaptation Protocol) sub-layer 356, and the SDAP sub-layer 356 is responsible for the mapping between QoS flows and data radio bearers (DRBs) to support service diversity. Although not shown, the first communication node device may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) terminated at the P-GW on the network side and an application layer terminated at the other end of the connection (e.g., a remote UE, a server, etc.).

[0196] As an example, the Figure 3 radio protocol architecture in is applicable to the first node.

[0197] As an example, the first communication node device includes an AIoT function controller.

[0198] As an example, the control plane 300 further includes an AIoT sub-layer 308 for the interaction of control data with the AIoT function controller. It should be noted that the AIoT sub-layer 308 does not limit the possible existence of other names.

[0199] As an example, the control plane 350 further includes an AIoT sub-layer 357 for the interaction of user data with the AIoT function controller. It should be noted that the AIoT sub-layer 357 does not limit the possible existence of other names.

[0200] As an example, the AIoT sub-layer 308 is located above the RRC sub-layer 306.

[0201] As an example, the AIoT sub-layer 357 is located above the SDAP sub-layer 356.

[0202] As an example, when the second communication node device is an AIoT device, the control plane 300 only includes the MAC sub-layer 302 and the PHY sub-layer 301.

[0203] As an example, when the second communication node device is an AIoT device, the control plane 300 only includes the AIoT sub-layer 308, the MAC sub-layer 302 and the PHY sub-layer 301.

[0204] As an example, when the second communication node device is an AIoT device, the user plane 350 only includes the MAC sub-layer 352 and the PHY sub-layer 351.

[0205] As an example, when the second communication node device is an AIoT device, the user plane 350 only includes the AIoT sub-layer 357, the MAC sub-layer 352, and the PHY sub-layer 351.

[0206] As an example, the first radio signal is generated in the PHY sub-layer 301, or the MAC sub-layer 302, or the PHY sub-layer 351, or the MAC sub-layer 352.

[0207] As an example, the first signaling is generated in the AIoT sub-layer 308.

[0208] As an example, the first signaling is generated in the NAS sub-layer 307.

[0209] As an example, the first signaling is generated in the RRC sub-layer 306.

[0210] As an example, the first signaling is generated in the RRC sub-layer 306 and the NAS sub-layer 307.

[0211] As an example, the first signaling is generated in the RRC sub-layer 306 and the AIoT sub-layer 308.

[0212] As an example, the first signaling is generated in the AIoT sub-layer 308 and the NAS sub-layer 307.

[0213] As an example, the first signaling is generated in the AIoT sub-layer 308, the NAS sub-layer 307, and the RRC sub-layer 306.

[0214] Example 4

[0215] Example 4 illustrates a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application, as shown in the appendix Figure 4 shown. The appendix Figure 4 is a block diagram of a first communication device 410 and a second communication device 450 that communicate with each other in an access network.

[0216] The first communication device 410 includes a controller / processor 475, a memory 476, a receiving processor 470, a transmitting processor 416, a multi-antenna receiving processor 472, a multi-antenna transmitting processor 471, a transmitter / receiver 418, and an antenna 420.

[0217] The second communication device 450 includes a controller / processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, a multi-antenna transmit processor 457, a multi-antenna receive processor 458, a transmitter / receiver 454, and an antenna 452.

[0218] In the transmission from the first communication device 410 to the second communication device 450, at the first communication device 410, upper layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements the functionality of the L2 layer. In the DL (DownLink), the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the second communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the second communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). The transmit processor 416 implements coding and interleaving to facilitate forward error correction (FEC) at the second communication device 450, and constellation mapping based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital space precoding on the encoded and modulated symbols, including codebook-based precoding and non-codebook-based precoding, and beamforming processing, to generate one or more parallel streams. The transmit processor 416 then maps each parallel stream to subcarriers, multiplexes the modulated symbols with reference signals (e.g., pilots) in the time domain and / or frequency domain, and then uses the inverse fast Fourier transform (IFFT) to generate a physical channel carrying the time-domain O stream. Subsequently, the multi-antenna transmit processor 471 performs transmit analog precoding / beamforming operations on the time-domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream and then provides it to different antennas 420.

[0219] In the transmission from the first communication device 410 to the second communication device 450, at the second communication device 450, each receiver 454 receives signals through its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the radio frequency carrier and converts the radio frequency stream into a baseband multi-carrier symbol stream and provides it to the receive processor 456. The receive processor 456 and the multi-antenna receive processor 458 implement various signal processing functions of the L1 layer. The multi-antenna receive processor 458 performs receive analog precoding / beamforming operations on the baseband multi-carrier symbol stream from the receivers 454. The receive processor 456 uses the Fast Fourier Transform (FFT) to convert the baseband multi-carrier symbol stream after the receive analog precoding / beamforming operations from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receive processor 456, where the reference signal will be used for channel estimation, and the data signal recovers any parallel streams destined for the second communication device 450 after multi-antenna detection in the multi-antenna receive processor 458. The symbols on each parallel stream are demodulated and recovered in the receive processor 456, and soft decisions are generated. Subsequently, the receive processor 456 decodes and de-interleaves the soft decisions to recover the upper layer data and control signals transmitted by the first communication device 410 on the physical channel. Subsequently, the upper layer data and control signals are provided to the controller / processor 459. The controller / processor 459 implements the functions of the L2 layer. The controller / processor 459 may be associated with a memory 460 that stores program code and data. The memory 460 may be referred to as a computer-readable medium. In the DL, the controller / processor 459 provides demultiplexing between the transmission and the logical channel, packet reassembly, decryption, header decompression, control signal processing to recover the upper layer data packets from the core network. Subsequently, the upper layer data packets are provided to all protocol layers above the L2 layer. Various control signals may also be provided to the L3 for L3 processing. The controller / processor 459 is also responsible for error detection using the acknowledgement (ACK) and / or negative acknowledgement (NACK) protocol to support the HARQ operation.

[0220] In the transmission from the second communication device 450 to the first communication device 410, at the second communication device 450, a data source 467 is used to provide upper layer data packets to a controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmit function at the first communication device 410 described in the DL, the controller / processor 459 performs header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on the radio resource allocation of the first communication device 410, and implements the L2 layer functions for the user plane and the control plane. The controller / processor 459 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the first communication device 410. A transmit processor 468 performs modulation mapping and channel coding processing. A multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing. Subsequently, the transmit processor 468 modulates the generated parallel streams into multi-carrier / single-carrier symbol streams, and after the analog precoding / beamforming operations in the multi-antenna transmit processor 457, provides them to different antennas 452 via a transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream and then provides it to the antenna 452.

[0221] In the transmission from the second communication device 450 to the first communication device 410, the functions at the first communication device 410 are similar to the receive functions at the second communication device 450 described in the transmission from the first communication device 410 to the second communication device 450. Each receiver 418 receives a radio frequency signal through its corresponding antenna 420, converts the received radio frequency signal into a baseband signal, and provides the baseband signal to a multi-antenna receive processor 472 and a receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 jointly implement the functions of the L1 layer. A controller / processor 475 implements the L2 layer functions. The controller / processor 475 may be associated with a memory 476 that stores program code and data. The memory 476 may be referred to as a computer-readable medium. The controller / processor 475 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover upper layer data packets from the second communication device 450. The upper layer data packets from the controller / processor 475 may be provided to the core network. The controller / processor 475 is also responsible for error detection using the ACK and / or NACK protocols to support HARQ operations.

[0222] As an example, the second communication device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The second communication device 450 is at least: in response to any one of a first set of conditions being satisfied, send a first wireless signal and monitor the response to the first wireless signal; determine based on the monitoring whether a first AIoT device is nearby; wherein, the condition for determining that the first AIoT device is nearby includes that the response to the first wireless signal is successfully received; at least one of the conditions in the first set of conditions depends on the downlink quality of the first node; the response to the first wireless signal is sent by the first AIoT device.

[0223] As an example, the second communication device 450 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generating actions when executed by at least one processor, the actions including: in response to any one of a first set of conditions being satisfied, send a first wireless signal and monitor the response to the first wireless signal; determine based on the monitoring whether a first AIoT device is nearby; wherein, the condition for determining that the first AIoT device is nearby includes that the response to the first wireless signal is successfully received; at least one of the conditions in the first set of conditions depends on the downlink quality of the first node; the response to the first wireless signal is sent by the first AIoT device.

[0224] As an example, the first node in this application includes the second communication device 450.

[0225] As an example, the second communication device 450 is a user equipment, and the first communication device 410 is an access network device (such as a gNB, eNB).

[0226] As an example, the second communication device 450 is an AIoT device, and the first communication device 410 is a Reader (for example, a user equipment or an access network device that can work as a Reader).

[0227] As an example, when the second communication device 450 is an AIoT device, the second communication device 450 only includes partial functions. For a detailed schematic diagram, please refer to the architecture diagram of the AIoT device in TR 38.769.

[0228] As an example, the user equipment is a terminal.

[0229] As an example, some or all of {the antenna 452, the transmitter 454, the transmit processor 468, the multi-antenna transmit processor 457, the controller / processor 459, the data source 467} are used to transmit the first wireless signal; some or all of {the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller / processor 459, the memory 460} are used to monitor and receive the response to the first wireless signal.

[0230] As an example, some or all of {the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller / processor 459, the memory 460} are used to receive signals from the first AIoT device.

[0231] As an example, some or all of {the multi-antenna receive processor 458, the controller / processor 459, the memory 460, the data source 467} are used to determine whether the first AIoT device is nearby based on the monitoring.

[0232] As an example, some or all of {the antenna 452, the transmitter 454, the transmit processor 468, the multi-antenna transmit processor 457, the controller / processor 459, the data source 467} are used to transmit the first signaling;

[0233] As an example, some or all of {the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller / processor 459, the memory 460} are used to receive the second signaling.

[0234] Example 5

[0235] Example 5 illustrates a transmission flowchart between a first node N1 and a second node N2 according to an embodiment of the present application, as shown in the appendix Figure 5 As shown, the steps in block F0 are optional.

[0236] For the first node N1, in response to any condition in the first condition set being satisfied in step S5101, send the first wireless signal; in step S5102, monitor the response to the first wireless signal; in step S5103, determine whether the first AIoT device is nearby based on the monitoring.

[0237] In Embodiment 5, the conditions for determining that the first AIoT device is nearby include that the response to the first wireless signal is successfully received; at least one condition in the first set of conditions depends on the downlink quality of the first node; and the response to the first wireless signal is sent by the first AIoT device.

[0238] As an embodiment, the response indicating that any one of the conditions in the first set of conditions is satisfied includes determining that any one of the conditions in the first set of conditions is satisfied.

[0239] As an embodiment, the conditions for determining that the first AIoT device is nearby further include that the reception quality of the signal from the first AIoT device exceeds a first threshold.

[0240] As an embodiment, for the first node N1, a first signaling is sent in step S5104, and the indication of the first signaling depends on whether the response to the first wireless signal is successfully received; a second signaling is received in step S5105, and the second signaling includes the configuration information of the AIoT.

[0241] As an embodiment, for the second node N2, a first signaling is received in step S5201, and the indication of the first signaling depends on whether the response to the first wireless signal is successfully received by the first node N1; a second signaling is sent in step S5202, and the second signaling includes the configuration information of the AIoT.

[0242] As an embodiment, the second signaling is triggered by the first signaling.

[0243] As an embodiment, the first node N1 and the second node N2 are a user equipment and an access network device (e.g., the RAN device in Embodiment 2), respectively.

[0244] As an embodiment, the first signaling and the second signaling are RRC messages.

[0245] As an embodiment, the first node N1 and the second node N2 are two user equipments (e.g., the UEs in Embodiment 2), respectively.

[0246] As an embodiment, the first signaling and the second signaling are PC5 messages.

[0247] As an embodiment, the first signaling and the second signaling are V2X messages.

[0248] As an embodiment, the first node N1 and the second node N2 are a user equipment and a core network device (e.g., the core network device in Embodiment 2), respectively.

[0249] As an example, the first signaling and the second signaling are NAS messages.

[0250] As an example, the first signaling and the second signaling are interface messages between the first node and the AIoT function controller.

[0251] As an example, the first node N1 and the second node N2 are an access network device and a user equipment respectively.

[0252] As an example, the first signaling and the second signaling are RRC messages.

[0253] As an example, the first node N1 and the second node N2 are two access network devices respectively.

[0254] As an example, the first signaling and the second signaling are XnAP messages.

[0255] As an example, the first node N1 and the second node N2 are an access network device and a core network device respectively.

[0256] As an example, the first signaling and the second signaling are NGAP messages.

[0257] As an example, the user equipment is a terminal.

[0258] As an example, the first signaling indicates that there is at least one AIoT device nearby.

[0259] As an example, the first signaling indicates that there is at least one AIoT device nearby and the number of AIoT devices nearby.

[0260] As an example, the first signaling is used to request to migrate all or part of the AIoT devices nearby.

[0261] As an example, the migration means: replacing the Reader that provides AIoT services for the AIoT devices nearby.

[0262] As an example, the first signaling includes the context information of N AIoT devices nearby; where N is a positive integer.

[0263] As an example, the first signaling indicates that there are no AIoT devices nearby.

[0264] As an example, the first signaling is used to request to obtain the resource information used.

[0265] As an embodiment, the first signaling is used to request an update of the status of working as a Reader.

[0266] As an embodiment, the context information of the AIoT device includes at least one of the following: identification information of the AIoT device; location information of the AIoT device; identification information of the Reader; identification information of the AIoT function controller; AIoT service information that the AIoT device is performing; resource information used by the AIoT device.

[0267] As an embodiment, the configuration information of the AIoT is used to confirm whether to allow all or part of the AIoT devices near the first node to migrate.

[0268] As an embodiment, the configuration information of the AIoT includes at least one of the following: identification information of M AIoT devices; identification information of P AIoT devices; identification information of the Reader that allows the M AIoT devices to migrate; where M and P are both positive integers.

[0269] As an embodiment, the M AIoT devices are the AIoT devices among the N AIoT devices near the first node that are allowed to migrate.

[0270] As an embodiment, the P AIoT devices are the AIoT devices among the N AIoT devices near the first node that are not allowed to migrate.

[0271] As an embodiment, the configuration information of the AIoT is used to indicate whether the first node continues to work as a Reader.

[0272] As an embodiment, the configuration information of the AIoT includes the resource information used by the first node.

[0273] As an embodiment, the resource information used by the first node includes the resource information used when working as a Reader.

[0274] Typical but non-limiting, for examples of the resources, please refer to Embodiment 1.

[0275] As an embodiment, in response to determining that the first AIoT device is nearby based on the monitoring, a first timer is started; the first timer is used to indicate the duration of maintaining a connection with the first AIoT device.

[0276] As an embodiment, the first timer is determined by the first node N1.

[0277] As an embodiment, the first timer is determined by the management node of the first node N1.

[0278] As an example, in response to the expiration of the first timer, the connection to the first AIoT device is released.

[0279] As an example, maintaining the connection with the first AIoT device means maintaining the wireless interface with the first AIoT device.

[0280] As an example, maintaining the connection with the first AIoT device means maintaining or storing the context information of the first AIoT device.

[0281] As an example, the identification information of the AIoT device includes at least one of the following: EPC (Electronic Product Code); the type of the AIoT device; the AIoT device identifier; the AIoT device group identifier.

[0282] As an example, the type of the AIoT device is one of the following: Device 1; Device 2a; Device 2b.

[0283] As an example, the AIoT device group includes at least one AIoT device.

[0284] As an example, the location information of the AIoT device includes at least one of the following: the cell identifier of the cell where the AIoT device is located; the area identifier of the cell where the AIoT device is located; the GNSS (Global Navigation Satellite System) information of the AIoT device; the cell identifier of the cell where the Reader of the AIoT device is located; the area identifier of the cell where the Reader of the AIoT device is located; the GNSS information of the Reader of the AIoT device.

[0285] As an example, the cell identifier includes at least one of the following: the PCI (Physical Cell Identity) of the cell; the NCGI (NR Cell Global Identifier) of the cell; the gNB ID that manages the cell.

[0286] As an embodiment, the area identifier includes at least one of the following: the PLMN (Public Land Mobile Network) identifier of the cell; the PNI-NPN (Public Network Integrated Non-Public Network) identifier of the cell; the SNPN (Stand-alone Non-Public Network) identifier of the cell; the CAG (Closed Access Group) identifier of the cell; the TAI (Tracking Area Identity) of the cell; the TAC (Tracking Area Code) of the cell; the RANAC (RAN Area Code) of the cell; the TRP (Transmit / Receive Point) ID of the cell signal.

[0287] As an embodiment, the identification information of the Reader includes at least one of the following: the Reader identifier; the UE identifier of the first node; the transport layer address of the Reader; the transport layer address of the first node.

[0288] As an embodiment, the identification information of the AIoT function controller includes at least one of the following: the AIoT function controller identifier; the core network identifier for controlling the AIoT function; the transport layer address of the AIoT function controller.

[0289] As an embodiment, the UE identifier includes at least one of the following: C-RNTI (Cell Radio Network Temporary Identifier); 5G-GUTI (5G Globally Unique Temporary Identifier); SUPI (Subscription Permanent Identifier); SUCI (Subscription Concealed Identifier); GPSI (Generic Public Subscription Identifier); PEI (Permanent Equipment Identifier).

[0290] As an embodiment, the transport layer address includes at least one of the following: IP address; GTP-TEID (General Packet Radio Service Tunneling Protocol-Tunnel Endpoint Identifier).

[0291] As an embodiment, the core network identifier is a GUAMI (Globally Unique Access and Mobility Management Function Identifier).

[0292] As an embodiment, the AIoT service information in progress of the AIoT device includes at least one of the following: the type of the AIoT service in progress; the number of the most recently received data packet; the number of the most recently sent data packet.

[0293] As an embodiment, the type of the AIoT service in progress is one of the following: Inventory; Command; Read; Write.

[0294] As an embodiment, the data packet is one of the following: a packet based on PDCP (Packet Data Convergence Protocol); a packet based on IP; a packet based on a protocol dedicated to transmitting AIoT data.

[0295] As an embodiment, in response to determining based on the monitoring that the first AIoT device is not nearby, release the connection to the first AIoT device.

[0296] As a sub-embodiment of the above embodiment, before the first node N1 executes step S5101, a connection has been established between the first AIoT device and the first node N1.

[0297] As a sub-embodiment of the above embodiment, before the first node N1 executes step S5101, the first AIoT device and the first node N1 have exchanged AIoT signaling or AIoT data.

[0298] As an embodiment, releasing the connection to the first AIoT device means: removing the radio interface with the first AIoT device.

[0299] As an example, releasing the connection to the first AIoT device means removing the context information of the first AIoT device.

[0300] As an example, releasing the connection to the first AIoT device means that the first node no longer provides proxy services for the first AIoT device.

[0301] As an example, releasing the connection to the first AIoT device means that the first node no longer maintains the authorization for the proxy service of the first AIoT device.

[0302] Example 6

[0303] Embodiment 6 exemplifies a flowchart of the first signaling for requesting to migrate all or part of the nearby AIoT devices when the second node can work as a Reader according to an embodiment of the present application, as shown in the appendix Figure 6 As shown, the steps in block F1 are optional.

[0304] For the first node N1, in step S6101, in response to any condition in the first condition set being satisfied, send a first wireless signal; in step S6102, monitor the response of the first wireless signal; in step S6103, determine that the third node N3 is nearby.

[0305] For the third node N3, in step S6301, receive the first wireless signal; in step S6302, send the response of the first wireless signal.

[0306] For the first node N1, in step S6104, send a first signaling, the first signaling including the context information of N nearby AIoT devices; in step S6105, receive a second signaling, the second signaling including the identification information of M AIoT devices.

[0307] For the second node N2, in step S6201, receive the first signaling, the first signaling including the context information of N AIoT devices near the first node; in step S6202, send a second signaling, the second signaling including the identification information of M AIoT devices.

[0308] As an example, for the second node N2, in response to receiving the first signaling, in step S62011, send a second wireless signal; in step S62012, monitor the response of the second wireless signal; in step S62013, determine whether the second AIoT device is nearby.

[0309] As an example, the first node N1 and the second node N2 are a user equipment and an access network device (e.g., the RAN device in Example 2), respectively.

[0310] As an example, the first node N1 and the second node N2 are two user equipments (e.g., the UEs in Example 2), respectively.

[0311] As an example, the first node N1 and the second node N2 are an access network device and a user equipment, respectively.

[0312] As an example, the first node N1 and the second node N2 are two access network devices.

[0313] As an example, the third node N3 is an AIoT device (e.g., the AIoT device in Example 2).

[0314] As an example, the user equipment is a terminal.

[0315] As an example, the third node N3 is the first AIoT device.

[0316] As an example, the response to any condition in the first condition set being satisfied includes: determining that any condition in the first condition set is satisfied.

[0317] As an example, the first signaling is used to request migrating N nearby AIoT devices to other nodes that can work as Readers.

[0318] As an example, the N nearby AIoT devices include the third node N3.

[0319] As an example, the second signaling indicates whether to allow migrating all or part of the N AIoT devices near the first node.

[0320] As an example, the M AIoT devices are the AIoT devices among the N AIoT devices near the first node that are allowed to be migrated.

[0321] As an example, the second signaling further includes resource information used by the M AIoT devices.

[0322] As an example, the second signaling further includes identification information of P AIoT devices.

[0323] As an example, the P AIoT devices are the AIoT devices among the N AIoT devices near the first node that are not allowed to be migrated.

[0324] As an embodiment, the condition for the first node N1 to determine to migrate the third node N3 is that the reception quality of the signal from the third node N3 exceeds threshold #5.

[0325] The above embodiment is conducive to achieving load balancing of the first node N1 for AIoT devices and improving the efficiency of the first node N1 working as a Reader.

[0326] As an embodiment, the condition for the first node N1 to determine to migrate the third node N3 is that the reception quality of the signal from the third node N3 does not exceed threshold #5.

[0327] In the above embodiment, the third node N3 may be located at the edge of the signal coverage range of the first node N1. Migrating it to other Readers is conducive to improving the transmission efficiency of the third node N3.

[0328] As an embodiment, the second node N2 is determined by the first node N1.

[0329] As an embodiment, the first node N1 determines that the second node N2 can work as a Reader based on the indication of the second node N2.

[0330] As an embodiment, the first node N1 and the second node N2 are a user equipment and an access network equipment respectively, or the first node N1 and the second node N2 are an access network equipment and a user equipment respectively. The second node N2 indicates to the first node N1 that it can work as a Reader through an RRC message.

[0331] As a sub - embodiment of the above embodiment, the first node N1 and the second node N2 are a user equipment and an access network equipment respectively. The second node N2 indicates to the first node N1 that it can work as a Reader through a broadcast message.

[0332] As a sub - embodiment of the above embodiment, the first node N1 and the second node N2 are a user equipment and an access network equipment respectively. The second node N2 indicates to the first node N1 that it can work as a Reader through an RRC re - configuration message.

[0333] As a sub - embodiment of the above - mentioned embodiment, the first node N1 and the second node N2 are an access network device and a user equipment respectively, and the second node N2 indicates to the first node N1 that it can work as a Reader through an RRC Setup Request message or a UE Capability Information message.

[0334] As an embodiment, both the first node N1 and the second node N2 are access network devices, and the second node N2 indicates to the first node N1 that it can work as a Reader through an XnAP message.

[0335] As a sub - embodiment of the above - mentioned embodiment, the second node N2 indicates to the first node N1 that it can work as a Reader through an Xn Setup Request message or an Xn Setup Response message.

[0336] As a sub - embodiment of the above - mentioned embodiment, the second node N2 indicates to the first node N1 that it can work as a Reader through an NG - RAN Node Configuration Update message or an NG - RAN Node Configuration Update Acknowledge message.

[0337] As an embodiment, both the first node N1 and the second node N2 are user equipments, and the second node N2 indicates to the first node N1 that it can work as a Reader through a PC5 message or a V2X message.

[0338] As an embodiment, the second node N2 is determined by the management node of the first node N1.

[0339] As an embodiment, for how the second node N2 determines whether the second AIoT device is nearby, refer to the method of how the first node N1 determines whether the first AIoT device is nearby in Embodiment 1, which will not be elaborated here.

[0340] The above - mentioned embodiment is beneficial for the second node N2 to determine whether to allow the requested AIoT device to migrate according to its own load situation for AIoT services, and to determine the AIoT devices allowed to migrate in.

[0341] As an embodiment, the indication of the second signaling depends on whether the response of the second wireless signal is successfully received; in this embodiment, for how the second node N2 determines whether the response of the second wireless signal is successfully received, please refer to the method in Embodiment 1 for how the first node N1 determines whether the response of the first wireless signal is successfully received, which will not be elaborated here.

[0342] As an embodiment, the second AIoT device is the third node N3.

[0343] In the above embodiment, the second node N2 can further determine whether to allow the third node N3 to migrate in according to whether the third node N3 is nearby, improving the accuracy of the second node N2 in providing AIoT services.

[0344] As an embodiment, as the response to receiving the second signaling, the first node N1 sends the ongoing AIoT service information of the M AIoT devices to the second node N2.

[0345] The above embodiment is conducive to the second node N2 obtaining the service information of the AIoT devices allowed to migrate immediately, and is conducive to ensuring the service continuity of the AIoT devices during the migration process.

[0346] As an embodiment, as the response of the second node N2 determining to allow the third node N3 to migrate, the M AIoT devices include the third node N3.

[0347] As an embodiment, as the response of the second node N2 determining not to allow the third node N3 to migrate, the M AIoT devices do not include the third node N3.

[0348] As an embodiment, as the response of the second node N2 determining not to allow the third node N3 to migrate, the P AIoT devices include the third node N3.

[0349] As an embodiment, the second node N2 executes an Inventory process for the M AIoT devices.

[0350] As an embodiment, as the response to receiving the second signaling, the first node N1 releases the connections to the M AIoT devices.

[0351] As an embodiment, as the response to receiving the indication from the second node N2 to release the connections to the M AIoT devices, the first node N1 releases the connections to the M AIoT devices.

[0352] As an example, the first node N1 instructs the AIoT function controller that the M AIoT devices are migrated to the second node N2.

[0353] As an example, the second node N2 instructs the AIoT function controller that the M AIoT devices are migrated in from the first node N1.

[0354] The above two examples are conducive to aligning the understanding between the AIoT function controller, the Reader, and the AIoT devices, enabling the AIoT function controller to obtain the correlation between the Reader and the AIoT devices in a timely manner, and improving the accuracy and flexibility of the AIoT service.

[0355] In Example 6, the first node can directly send a migration request for the AIoT device to a node that can work as a Reader nearby. This is not only conducive to the load balancing of the first node, improving the service quality of the first node for the AIoT service, but also ensuring the business continuity of the AIoT devices near the first node.

[0356] Example 7

[0357] Example 7 illustrates a flowchart of the first signaling for requesting to migrate all or part of the nearby AIoT devices in the case where the second node is the management node of the first node according to an example of the present application, as shown in the appendix Figure 7 As shown, the steps in block F2 are optional.

[0358] For the first node N1, in step S7101, in response to any condition in the first condition set being satisfied, a first radio signal is sent; in step S7102, the response of the first radio signal is monitored; in step S7103, it is determined that the first AIoT device is nearby; in step S7104, a first signaling is sent, and the first signaling is used to request to migrate N nearby AIoT devices to other nodes that can work as Readers; in step S7105, a second signaling is received, and the second signaling indicates whether to allow the migration of all or part of the N AIoT devices near the first node.

[0359] For the second node N2, in step S7201, the first signaling is received, and the first signaling is used to request to migrate N AIoT devices near the first node to other nodes that can work as Readers; in step S7202, a second signaling is sent, and the second signaling indicates whether to allow the migration of all or part of the N AIoT devices near the first node.

[0360] As an example, the first node N1 and the second node N2 are a user equipment and an access network equipment (such as the RAN equipment in Embodiment 2), respectively.

[0361] As an example, the first node N1 and the second node N2 are a user equipment and a core network equipment (such as the core network equipment in Embodiment 2), respectively.

[0362] As an example, the first node N1 and the second node N2 are an access network equipment and a core network equipment, respectively.

[0363] As an example, the user equipment is a terminal.

[0364] As an example, the response that any condition in the first condition set is satisfied includes: determining that any condition in the first condition set is satisfied.

[0365] As an example, the first signaling includes the context information of N AIoT devices near the first node.

[0366] As an example, the second signaling includes the identification information of the fourth node (i.e., the identification information of the Reader in Embodiment 5); wherein, the fourth node can work as a Reader.

[0367] As an example, the second node N2 determines the fourth node.

[0368] As an example, the second node N2 determines that the fourth node can work as a Reader based on the indication of the fourth node.

[0369] As an example, the second node N2 and the fourth node are an access network equipment and a user equipment, respectively, and the fourth node indicates to the second node N2 through an RRC message that it can work as a Reader; in this embodiment, for the indication method of the fourth node, please refer to the example in Embodiment 6 on how the second node N2 indicates to the first node N1 through an RRC message that it can work as a Reader when the first node N1 and the second node N2 are an access network equipment and a user equipment, respectively, and details will not be repeated here.

[0370] As an embodiment, the second node N2 and the fourth node are both access network devices, and the fourth node indicates to the second node N2 via an XnAP message that it can work as a Reader; in this embodiment, for the indication method of the fourth node, please refer to the example in Embodiment 6 on how the second node N2 indicates to the first node N1 via an XnAP message that it can work as a Reader when both the first node N1 and the second node N2 are access network devices, which will not be elaborated here.

[0371] As an embodiment, the second node N2 and the fourth node are a core network device and a user equipment respectively, and the fourth node indicates to the second node N2 via a NAS message that it can work as a Reader.

[0372] As a sub - embodiment of the above - mentioned embodiment, the fourth node indicates to the second node N2 via a RegistrationRequest message or a UE Configuration Update Complete message that it can work as a Reader.

[0373] As an embodiment, the second node N2 and the fourth node are a core network device and an access network device respectively, and the fourth node indicates to the second node N2 via an interface message with an AIoT function controller that it can work as a Reader.

[0374] As an embodiment, the second node N2 and the fourth node are a core network device and an access network device respectively, and the fourth node indicates to the second node N2 via an NGAP message that it can work as a Reader.

[0375] As a sub - embodiment of the above - mentioned embodiment, the fourth node indicates to the second node N2 via an NG SetupRequest message or a RAN Configuration Update message that it can work as a Reader.

[0376] As an embodiment, the second node N2 and the fourth node are a core network device and an access network device respectively, and the fourth node indicates to the second node N2 via an interface message with an AIoT function controller that it can work as a Reader.

[0377] As an embodiment, the second node N2 determines the fourth node as a Reader that allows M AIoT devices to migrate.

[0378] As an embodiment, the second signaling includes at least one of the following: identification information of M AIoT devices; resource information used by M AIoT devices; identification information of P AIoT devices.

[0379] As an embodiment, the M AIoT devices are the AIoT devices among the N AIoT devices near the first node that are allowed to migrate.

[0380] As an embodiment, the P AIoT devices are the AIoT devices among the N AIoT devices near the first node that are not allowed to migrate.

[0381] As an embodiment, as the first node N1 receives the identification information of the fourth node, the first node N1 sends the context information of the N AIoT devices near the first node to the fourth node.

[0382] As an embodiment, as the second node N2 determines the response of the fourth node, the second node N2 sends the context information of Q AIoT devices near the first node to the fourth node in step S72011.

[0383] As an embodiment, the Q AIoT devices are included in the N AIoT devices near the first node.

[0384] In the above embodiment, the second node N2 can flexibly allocate the AIoT devices that need to be migrated based on the perception of other Readers, which is beneficial to reducing the processing complexity of the Reader and improving the efficiency of the AIoT service.

[0385] As an embodiment, as a response to receiving the context information of the Q AIoT devices near the first node, the fourth node sends at least one of the following to the second node N2: identification information of M AIoT devices; resource information used by M AIoT devices; identification information of P AIoT devices.

[0386] As a sub - embodiment of the above embodiment, the M AIoT devices are the AIoT devices among the Q AIoT devices near the first node that are allowed to migrate.

[0387] As a sub - embodiment of the above embodiment, the P AIoT devices are the AIoT devices among the Q AIoT devices near the first node that are not allowed to migrate.

[0388] As an example, in response to receiving the context information of the N AIoT devices near the first node, the fourth node sends at least one of the following to the first node N1: identification information of M AIoT devices; resource information used by the M AIoT devices; identification information of P AIoT devices.

[0389] As an example, in response to receiving the context information of the AIoT devices near the first node, for the subsequent actions of the fourth node, please refer to the relevant descriptions of steps S62011 to S62013 of the second node N2 in Embodiment 6.

[0390] As an example, the fourth node performs an Inventory process for M AIoT devices.

[0391] As an example, in response to receiving the identification information of the M AIoT devices or receiving the information for indicating the release of the connections of the M AIoT devices, the first node N1 releases the connections for the M AIoT devices.

[0392] As an example, the information for indicating the release of the connections of the M AIoT devices comes from the second node N2.

[0393] As an example, the information for indicating the release of the connections of the M AIoT devices comes from the fourth node.

[0394] In Embodiment 7, the first node sends a migration request to the management node of the first node, which can reduce the processing complexity of the first node and achieve the load balancing of the first node, facilitating the improvement of the service quality of the first node for AIoT services and ensuring the business continuity of the AIoT devices near the first node.

[0395] Example 8

[0396] Embodiment 8 exemplifies a flowchart of the first node sending the first signaling in response to determining that there are no AIoT devices nearby according to an embodiment of the present application, as shown in the appendix Figure 8 as follows.

[0397] For the first node N1, in step S8101, in response to any condition in the first condition set being satisfied, send a first wireless signal; in step S8102, monitor the response of the first wireless signal; in step S8103, determine that there are no AIoT devices nearby; in step S8104, in response to any condition not being the first condition, send a first signaling indicating that there are no AIoT devices nearby; in step S8105, receive a second signaling indicating to authorize the AIoT function.

[0398] For the second node N2, in step S8201, receive the first signaling indicating that there are no AIoT devices nearby the first node; in step S8202, send a second signaling indicating to authorize the AIoT function.

[0399] As an embodiment, the second node N2 is the management node of the first node.

[0400] As an embodiment, the first node N1 and the second node N2 are a user equipment and a core network equipment (such as the core network equipment in Embodiment 2), respectively.

[0401] As an embodiment, the response to any condition in the first condition set being satisfied includes: determining that any condition in the first condition set is satisfied.

[0402] As an embodiment, the first signaling or the second signaling is sent through a NAS message.

[0403] As a sub - embodiment of the above - mentioned embodiment, the first signaling is a registration request message, and the second signaling is a Registration Accept message.

[0404] As a sub - embodiment of the above - mentioned embodiment, the first signaling is an UL NAS Transport message, and the second signaling is a DL NAS Transport message.

[0405] As an embodiment, the first signaling or the second signaling is sent through an interface message with an AIoT function controller.

[0406] As an embodiment, the first signaling or the second signaling is sent through an RRC message and an NGAP message.

[0407] As a sub - embodiment of the above - mentioned embodiment, the first signaling includes an RRC Setup Complete message and an Initial UE Message, and the second signaling includes an RRC Reconfiguration message and an Initial Context Setup Request message.

[0408] As a sub - embodiment of the above - mentioned embodiment, the first signaling includes a UL Information Transfer message and an Uplink NAS Transport message, and the second signaling includes a DL Information Transfer message and a Downlink NAS Transport message.

[0409] As an embodiment, the first signaling or the second signaling is sent through an RRC message and an interface message between the access network device and the AIoT function controller.

[0410] As an embodiment, the first node N1 and the second node N2 are an access network device and a core network device respectively.

[0411] As an embodiment, the first signaling or the second signaling is sent through an NGAP message.

[0412] As a sub - embodiment of the above - mentioned embodiment, the first signaling is an NG Setup Request message, and the second signaling is an NG Setup Response message.

[0413] As a sub - embodiment of the above - mentioned embodiment, the first signaling is a RAN Configuration Update message, and the second signaling is a RAN Configuration Update Acknowledge message.

[0414] As an embodiment, the first signaling or the second signaling is sent through an interface message between the access network device and the AIoT function controller.

[0415] As an embodiment, the first node N1 and the second node N2 are a user equipment and an access network device respectively.

[0416] As an embodiment, the first signaling or the second signaling is sent through an RRC message.

[0417] As a sub - embodiment of the above - mentioned embodiment, the first signaling is an RRC connection setup complete message, and the second signaling is an RRC re - configuration message.

[0418] As a sub - embodiment of the above - mentioned embodiment, the first signaling is a MeasurementReport message, and the second signaling is an RRC re - configuration message.

[0419] As a sub - embodiment of the above - mentioned embodiment, the first signaling is a UE AssistanceInformation message, and the second signaling is an RRC re - configuration message.

[0420] As an embodiment, the user equipment is a terminal.

[0421] As an embodiment, the first signaling is used to request an update of the status of working as a Reader.

[0422] As an embodiment, the first signaling is used to determine the de - authorization of the AIoT function.

[0423] As an embodiment, the first signaling is used to request the de - authorization of the AIoT function.

[0424] As an embodiment, the first condition is: being instructed to de - authorize the AIoT function.

[0425] As an embodiment, as a response to sending the second signaling, the second node N2 releases the connection to the first node N1.

[0426] As an embodiment, the second node N2 releasing the connection to the first node N1 means that the second node N2 removes the interface with the first node N1.

[0427] As an embodiment, the second node N2 releasing the connection to the first node N1 means that the second node N2 removes the tunnel with the first node N1.

[0428] As an embodiment, the second node N2 releasing the connection to the first node N1 means that the second node N2 removes the context information of the first node N1.

[0429] As an embodiment, the second node N2 releasing the connection to the first node N1 means that the second node N2 no longer provides proxy services for the first node N1.

[0430] As an example, the second node N2 releasing the connection to the first node N1 means that the second node N2 no longer maintains the authorization for the proxy service of the first node N1.

[0431] In Embodiment 8, the first node sends a first signaling indicating that there are no AIoT devices nearby to the management node of the first node, which can assist the management device of the first node in managing the Reader authorization status of the first node according to the first signaling, facilitating the reduction of the processing complexity and power consumption of the first node.

[0432] Example 9

[0433] Embodiment 9 exemplifies a flowchart of sending the first signaling under the condition that the first node is instructed to authorize the AIoT function and there is at least one AIoT device near the first node according to an embodiment of the present application, as shown in the appendix Figure 9 as follows.

[0434] For the first node, in step 901, as a response to the condition that the AIoT function is de-authorized being satisfied, a first wireless signal is sent; in step 902, the response of the first wireless signal is monitored; in step 903, it is determined that a first AIoT device is nearby; in step 904, a first signaling is sent, and the first signaling is used to request to migrate N nearby AIoT devices to other nodes that can work as Readers; in step 905, a second signaling is received, and the second signaling indicates whether to allow the migration of all or part of the N AIoT devices near the first node.

[0435] As an example, the first node is a user equipment (e.g., the UE in Embodiment 2).

[0436] As an example, the first node is an access network device (e.g., the RAN device in Embodiment 2).

[0437] As an example, the user equipment is a terminal.

[0438] As an example, the response to the condition that the AIoT function is de-authorized being satisfied includes: determining that the condition that the AIoT function is de-authorized is satisfied.

[0439] As an example, the first node determines that the condition that the AIoT function is de-authorized is satisfied based on first indication information; wherein, the first indication information indicates to de-authorize the AIoT function.

[0440] As an example, the first indication information comes from the management node of the first node.

[0441] As an embodiment, the first node and the management node of the first node are a user equipment and a core network equipment respectively.

[0442] As an embodiment, the first indication information is received through a NAS message.

[0443] As a sub - embodiment of the above - mentioned embodiment, the first indication information is received through a UE Configuration Update Command message.

[0444] As an embodiment, the first indication information is received through an interface message between the AIoT function controller.

[0445] As an embodiment, the first indication information is received through an RRC message and an NGAP message.

[0446] As a sub - embodiment of the above - mentioned embodiment, the first indication information is through a downlink information forwarding message and a downlink NAS transmission message.

[0447] As an embodiment, the first indication information is received through an RRC message and an interface message between the access network device and the AIoT function controller.

[0448] As an embodiment, the first node and the management node of the first node are an access network device and a core network equipment respectively.

[0449] As an embodiment, the first indication information is received through an NGAP message.

[0450] As a sub - embodiment of the above - mentioned embodiment, the first indication information is received through an AMF Configuration Update message.

[0451] As an embodiment, the first indication information is received through an interface message between the access network device and the AIoT function controller.

[0452] As an embodiment, the first node and the management node of the first node are a user equipment and an access network device respectively.

[0453] As an embodiment, the first indication information is received through an RRC message.

[0454] As a sub - embodiment of the above - mentioned embodiment, the first indication information is received through an RRC re - configuration message.

[0455] As an example, the second node is a node capable of working as a Reader. For the descriptions of step 904 and step 905, please refer to the relevant descriptions of step S6104 and step S6105 in Embodiment 6; for the actions of the second node, please refer to the relevant descriptions of step S6201, step S62011, step S62012, step S62013 and step S6202 in Embodiment 6.

[0456] As an example, the second node is the management node of the first node. For the descriptions of step 904 and step 905, please refer to the relevant descriptions of step S7104 and step S7105 in Embodiment 7; for the actions of the second node, please refer to the relevant descriptions of step S7201, step S72011 and step S7202 in Embodiment 7.

[0457] As an example, the first indication information includes the identification information of the fourth node; for the definition of the fourth node, please refer to Embodiment 7.

[0458] As an example, the N nearby AIoT devices are all the nearby AIoT devices.

[0459] Embodiment 9 can avoid the interruption of AIoT services of the AIoT devices near the first node due to the deauthorization of the AIoT function of the first node, and ensure the service continuity of the AIoT devices.

[0460] Example 10

[0461] Embodiment 10 illustrates a flowchart of sending the first signaling under the condition that the first node requests to deauthorize the AIoT function and there is at least one AIoT device near the first node according to an embodiment of the present application, as shown in the appendix Figure 10 shown. In the appendix Figure 10 the dotted boxes represent optional steps.

[0462] For the first node, in step 1001, in response to the condition for deauthorizing the AIoT function being satisfied, a first radio signal is sent; in step 1002, the response of the first radio signal is monitored; in step 1003, it is determined that a first AIoT device is nearby; in step 1004, a first signaling is sent, and the first signaling is used to request to migrate N nearby AIoT devices to other nodes capable of working as Readers; in step 1005, a second signaling is received, and the second signaling indicates whether to allow the migration of all or part of the N AIoT devices near the first node; in step 1006, a second indication information is sent, and the second indication information is used to request to deauthorize the AIoT function.

[0463] As an example, the first node is a user equipment (e.g., the UE in Embodiment 2).

[0464] As an example, the first node is an access network device (e.g., the RAN device in Embodiment 2).

[0465] As an example, the user equipment is a terminal.

[0466] As an example, the response to the condition that the de - authorized AIoT function is satisfied includes: determining that the condition for the de - authorized AIoT function is satisfied.

[0467] As an example, the first node determines that the condition for the de - authorized AIoT function is satisfied based on the third indication information; wherein, the third indication information indicates a request to de - authorize the AIoT function.

[0468] As an example, the first node receives the third indication information from a higher layer.

[0469] As an example, the NAS sub - layer of the first node provides the third indication information to the AS sub - layer of the first node.

[0470] As an example, the AIoT sub - layer of the first node provides the third indication information to the AS sub - layer of the first node.

[0471] As an example, the second indication information is sent to the management node of the first node.

[0472] As an example, in response to receiving the second indication information, the management node of the first node sends first indication information, and the first indication information indicates de - authorizing the AIoT function.

[0473] As an example, the first node receives the first indication information in step 1007.

[0474] As an example, the first node and the management node of the first node are a user equipment and a core network equipment respectively.

[0475] As an example, the second indication information is sent through a NAS message.

[0476] As a sub - example of the above example, the second indication information is transmitted through an uplink NAS message.

[0477] As an example, the second indication information is sent through an interface message with an AIoT function controller.

[0478] As an embodiment, the second indication information is sent through an RRC message and an NGAP message.

[0479] As a sub - embodiment of the above - mentioned embodiment, the second indication information is sent through an uplink information forwarding message and an uplink NAS transport message.

[0480] As an embodiment, the second indication information is sent through an RRC message and an interface message between an access network device and an AIoT function controller.

[0481] As an embodiment, the first node and the management node of the first node are an access network device and a core network device respectively.

[0482] As an embodiment, the second indication information is sent through an NGAP message.

[0483] As a sub - embodiment of the above - mentioned embodiment, the second indication information is sent through an RAN configuration update message.

[0484] As an embodiment, the second indication information is sent through an interface message between an access network device and an AIoT function controller.

[0485] As an embodiment, the first node and the management node of the first node are a user equipment and an access network device respectively.

[0486] As an embodiment, the second indication information is sent through an RRC message.

[0487] As a sub - embodiment of the above - mentioned embodiment, the second indication information is sent through a measurement report message.

[0488] As a sub - embodiment of the above - mentioned embodiment, the second indication information is sent through a UE assistance information message.

[0489] As an embodiment, the second node is a node capable of working as a Reader. For step 1004 and step 1005, please refer to the relevant descriptions of step S6104 and step S6105 in Embodiment 6; for the behavior of the second node, please refer to the relevant descriptions of step S6201, step S62011, step S62012, step S62013 and step S6202 in Embodiment 6.

[0490] As an embodiment, the second node is the management node of the first node. For step 1004 and step 1005, please refer to the relevant descriptions of step S7104 and step S7105 in Embodiment 7; for the behavior of the second node, please refer to the relevant descriptions of step S7201, S72011 and step S7202 in Embodiment 7.

[0491] As a sub - embodiment of the above - mentioned embodiment, the first signaling includes the second indication information.

[0492] As a sub - embodiment of the above - mentioned embodiment, in response to the first signaling including the second indication information, the second signaling includes the first indication information.

[0493] As an embodiment, the N nearby AIoT devices are all the nearby AIoT devices.

[0494] As an embodiment, in response to releasing the connection for the permitted - to - migrate AIoT device, the second indication information is sent.

[0495] Embodiment 10 can avoid the interruption of AIoT services of the AIoT devices near the first node caused by the first node requesting to de - authorize the AIoT function, and ensure the service continuity of the AIoT devices.

[0496] Example 11

[0497] Embodiment 11 exemplifies a flowchart of sending the first signaling in the source cell under the condition that the first node is a user equipment according to an embodiment of the present application, as shown in the appendix. Figure 11 shown. In the appendix Figure 11 In it, the dashed - line box represents an optional step.

[0498] For the first node, in step S1101, as a response to the second condition being met, a first radio signal is sent; in step S1102, the response of the first radio signal is monitored; in step S1103, it is determined whether there is at least one AIoT device nearby. If there is, step S11041 is executed; if not, step S11042 is executed; in step S11041, a first signaling is sent, and the first signaling indicates that there is at least one AIoT device nearby; in step S11042, a first signaling is sent, and the first signaling indicates that there is no AIoT device nearby.

[0499] As an embodiment, the user equipment is a terminal.

[0500] As an embodiment, the second condition is any one of the following conditions: the serving cell is worse than the second threshold; the neighboring cell is better than the first offset value of the special cell; the neighboring cell is better than the third threshold; the special cell is worse than the fourth threshold and the neighboring cell or the secondary cell is better than the fifth threshold; the neighboring cell is better than the second offset value of the secondary cell; at least one condition - based handover CHO candidate cell meets the corresponding CHO execution condition; the handover process is triggered.

[0501] As an example, the response indicating that the second condition is satisfied includes: determining that the second condition is satisfied.

[0502] As an example, in response to determining that there is at least one AIoT device in the vicinity, the first node starts a first timer in step S11031, and the first timer is used to indicate the duration of maintaining a connection with the AIoT device in the vicinity.

[0503] As an example, in response to determining that there is at least one AIoT device performing an AIoT service in the vicinity, the first node starts the first timer in step S11031.

[0504] As an example, the first timer is pre-configured.

[0505] As an example, the first timer is determined by the first node.

[0506] As an example, information about the first timer is received from the management node of the first node.

[0507] As an example, for step S11041, the first signaling includes sub-signalings for indicating at least one of the following: selecting a cell that supports Reader operation as the target cell (sub-signaling #1); requesting to obtain resource information in use (sub-signaling #2); requesting to migrate all or part of the AIoT devices in the vicinity (sub-signaling #3).

[0508] As an example, the support for Reader operation means: supporting the allocation of resources for the Reader.

[0509] As an example, the sub-signaling #2 includes context information of at least one AIoT device near the first node.

[0510] The above embodiments are beneficial for assisting the network in updating the resource information allocated to the first node.

[0511] As an example, the sub-signaling #2 indicates maintaining or saving the context information of the first node.

[0512] As an example, the first node saves the context information of the first node in the source cell.

[0513] The above two embodiments are beneficial for the first node to quickly obtain resources for the AIoT service when moving back to the source cell again, ensuring the quality of service for the AIoT service.

[0514] As an embodiment, the context information of the first node includes at least one of the following: the context information of at least one AIoT device near the first node; the Reader authorization status of the first node; the resource information used by the first node in the source cell.

[0515] As an embodiment, in response to starting the first timer, the sub-signal #2 is sent.

[0516] As an embodiment, the sub-signal #2 includes the duration for maintaining or saving the context information of the first node.

[0517] As an embodiment, the first node receives a second signal from a second node.

[0518] As an embodiment, the second node includes an access network device that manages the source cell.

[0519] As a sub-embodiment of the above embodiment, the second node is an access network device that manages the source cell.

[0520] As a sub-embodiment of the above embodiment, the first node sends the sub-signal #1 to the second node, and the second signal includes information about the target cell that supports Reader operation.

[0521] As a sub-embodiment of the above embodiment, the target cell indicates support for Reader operation to the second node via an XnAP message.

[0522] As a sub-embodiment of the above embodiment, the target cell indicates support for Reader operation to the second node via an Xn establishment request message or an Xn establishment response message.

[0523] As a sub-embodiment of the above embodiment, the core network device indicates information about the target cell that supports Reader operation to the second node.

[0524] As a sub-embodiment of the above embodiment, the core network device indicates information about the target cell that supports Reader operation to the second node via an AMF configuration update message.

[0525] As a sub-embodiment of the above embodiment, the information about the target cell that supports Reader operation includes the resource information used by the first node in the target cell.

[0526] As a sub - embodiment of the above - mentioned embodiment, in response to receiving the sub - signaling #1, the second node sends the context information of the first node to the target cell; typically but not restrictively, the second node sends the context information of the first node to the target cell through a HandoverRequest message.

[0527] The above - mentioned sub - embodiment is conducive to the target cell determining the resource information allocated for the first node.

[0528] As a sub - embodiment of the above - mentioned embodiment, the first node sends the sub - signaling #2 to the second node, and the second signaling includes the resource information used by the first node.

[0529] As a sub - embodiment of the above - mentioned embodiment, the first node sends the sub - signaling #2 to the second node, and the second signaling is used to confirm the maintenance or preservation of the context information of the first node for the first node.

[0530] As a sub - embodiment of the above - mentioned embodiment, the first node sends the sub - signaling #1 and the sub - signaling #2 to the second node.

[0531] As an embodiment, the second node includes a node that can work as a Reader.

[0532] As a sub - embodiment of the above - mentioned embodiment, the second node is a node that can work as a Reader.

[0533] As a sub - embodiment of the above - mentioned embodiment, the first node sends the sub - signaling #3 to the second node; for the examples of the sub - signaling #3, please refer to the relevant description of the first signaling in Embodiment 6, and for the examples of the second signaling and the behavior of the second node, please refer to Embodiment 6.

[0534] As an embodiment, the second node includes the core network device of the first node.

[0535] As a sub - embodiment of the above - mentioned embodiment, the second node is the core network device of the first node.

[0536] As a sub - embodiment of the above - mentioned embodiment, the first node sends the sub - signaling #3 to the second node; for the examples of the sub - signaling #3, please refer to the relevant description of the first signaling in Embodiment 7, and for the examples of the second signaling and the behavior of the second node, please refer to Embodiment 7.

[0537] As an embodiment, the first node executes step S11042, that is, the first node sends the first signaling to the second node; for examples of the first signaling and the second signaling, please refer to Embodiment 8.

[0538] In the above embodiment, based on the first signaling, the second node can release the resources allocated when the first node works as a Reader, which is beneficial to improving the resource utilization rate of the second node.

[0539] As an embodiment, the access network device of the source cell can work as a Reader.

[0540] As an embodiment, the source cell can work as a Reader.

[0541] As an embodiment, the sequence relationship between step S11031 and step S11041 can be adjusted. For example, S11041 may occur before S11031, or the occurrence times of the two overlap.

[0542] As an embodiment, in response to receiving the information of the target cell that supports the Reader work, the first timer stops timing.

[0543] As an embodiment, in response to the expiration of the first timer, the connection to the at least one nearby AIoT device is released.

[0544] As an embodiment, in response to releasing the connection to the at least one nearby AIoT device, the first node executes step S11042.

[0545] As an embodiment, in response to the expiration of the first timer, the first node repeats step S1102 and step S1103 to determine whether to execute step S11041 or step S11042.

[0546] In Embodiment 11, the first node can make a timely response when a handover is about to occur, which is beneficial to avoiding the interruption of the AIoT service caused by the handover process of the first node, thereby improving the service continuity of the AIoT service.

[0547] Example 12

[0548] Embodiment 12 illustrates a flowchart of sending the first signaling in the target cell under the condition that the first node is a user equipment according to an embodiment of the present application, as shown in the appendix Figure 12 as follows.

[0549] For the first node, in response to the third condition being satisfied in step S1201, send a first wireless signal; in step S1202, monitor the response of the first wireless signal; in step S1203, determine whether there is at least one AIoT device nearby. If there is, execute step S12041; if not, execute step S12042; in step S12041, send a first signaling, the first signaling indicating that there is at least one AIoT device nearby; in step S12042, send a first signaling, the first signaling indicating that there is no AIoT device nearby.

[0550] As an embodiment, the user equipment is a terminal.

[0551] As an embodiment, the response to the third condition being satisfied includes: determining that the third condition is satisfied.

[0552] As an embodiment, the third condition is any one of the following conditions: the handover process is completed; RRC connection re - establishment occurs.

[0553] As an embodiment, for step S12041, the first signaling includes sub - signaling for indicating at least one of the following: requesting to obtain resource information in use (sub - signaling #2); requesting to migrate all or part of the nearby AIoT devices (sub - signaling #3).

[0554] As an embodiment, the sub - signaling #2 includes context information of the first node.

[0555] As an embodiment, the context information of the first node includes at least one of the following: context information of at least one AIoT device near the first node; the Reader authorization status of the first node; resource information recently used by the first node (in the source cell or in the most recently served cell).

[0556] As an embodiment, the sub - signaling #2 is used to request resource allocation for the first node.

[0557] As an embodiment, the second node includes an access network device that manages the target cell.

[0558] As a sub - embodiment of the above - mentioned embodiment, the second node is an access network device that manages the target cell.

[0559] As a sub - embodiment of the above - mentioned embodiment, the first node sends the sub - signaling #2 to the second node, and the second signaling includes resource information used by the first node.

[0560] As a sub - embodiment of the above - mentioned embodiment, the resource information used by the first node depends on the context information of the first node.

[0561] As a sub - embodiment of the above - mentioned embodiment, the second node receives the context information of the first node from the source cell; typically but not restrictively, the second node receives the context information of the first node from the source cell through a handover request message.

[0562] As a sub - embodiment of the above - mentioned embodiment, the second node receives the context information of the first node from the last - serving gNB (Lastserving gNB); typically but not restrictively, the target cell receives the context information of the first node from the last - serving gNB through a Retrieve UE Context Response message.

[0563] As a sub - embodiment of the above - mentioned embodiment, in response to receiving the sub - signaling #2, the second node sends fourth indication information to the core network device of the first node; wherein, the fourth indication information includes at least one of the following: the cell identifier of the target cell; the context information of at least one AIoT device near the first node.

[0564] The above - mentioned sub - embodiment is beneficial to assist the management node of the first node in scheduling the first node and the AIoT devices near the first node in real - time when the first node completes the handover process.

[0565] As a sub - embodiment of the above - mentioned embodiment, the second node sends the fourth indication information through an NGAP message.

[0566] As a sub - embodiment of the above - mentioned embodiment, the second node sends the fourth indication information through a Path Switch Request message.

[0567] As a sub - embodiment of the above - mentioned embodiment, the second node sends the fourth indication information through an interface message with the AIoT function controller.

[0568] As a sub - embodiment of the above - mentioned embodiment, the fourth indication information is used to update the Reader authorization status of the first node.

[0569] As a sub - embodiment of the above - mentioned embodiment, the fourth indication information is used to update the information of the access network device connected to the first node.

[0570] As an embodiment, the second node includes a node capable of working as a Reader.

[0571] As a sub - embodiment of the above - mentioned embodiment, the second node is a node capable of working as a Reader.

[0572] As a sub - embodiment of the above - mentioned embodiment, the first node sends the sub - signaling #3 to the second node; for an example of the sub - signaling #3, please refer to the relevant description of the first signaling in Embodiment 6, and for an example of the second signaling and the behavior of the second node, please refer to Embodiment 6.

[0573] As an embodiment, the target cell is the cell accessed by the first node after handover from the source cell.

[0574] As an embodiment, the target cell is the cell in which the first node initiates the RRC re - establishment procedure.

[0575] As an embodiment, the target cell supports Reader operation.

[0576] As an embodiment, the support for Reader operation means: supporting resource allocation for the Reader.

[0577] As an embodiment, the second node includes the core network device of the first node.

[0578] As a sub - embodiment of the above - mentioned embodiment, the second node is the core network device of the first node.

[0579] As a sub - embodiment of the above - mentioned embodiment, the first node sends the sub - signaling #3 to the second node; for an example of the sub - signaling #3, please refer to the relevant description of the first signaling in Embodiment 7, and for an example of the second signaling and the behavior of the second node, please refer to Embodiment 7.

[0580] As an embodiment, the first node executes step S12042, that is, the first node sends the first signaling to the second node; for an example of the first signaling and the second signaling, please refer to Embodiment 8.

[0581] In the above - mentioned embodiment, when the second node is the access network device that manages the target cell, based on the first signaling, even if it is determined that the first node supports the Reader function, the target cell will not allocate resources used when working as a Reader, thus avoiding unnecessary resource waste.

[0582] As an embodiment, the access network device of the target cell is capable of working as a Reader.

[0583] As an embodiment, the target cell is capable of working as a Reader.

[0584] As an embodiment, the first signaling includes an RRC re - establishment completion message, and the second signaling includes an RRC re - configuration message.

[0585] As an embodiment, the first signaling is an RRC re - establishment completion message, and the second signaling is an RRC re - configuration message.

[0586] In Embodiment 12, the first node can respond in a timely manner when a handover process occurs or an RRC connection is re - established, which is beneficial to improving the service continuity of the AIoT service and achieving load balancing for the first node to work as a Reader.

[0587] Example 13

[0588] Embodiment 13 exemplifies a flowchart of the subsequent behavior of the first node under the condition that the first node is a user equipment and the RRC connection fails, as shown in the appendix. Figure 13 As shown. In the appendix Figure 13 In it, the dashed box represents an optional step.

[0589] For the first node, as a response to the RRC connection failure, in step S1301, a first radio signal is sent; in step S1302, the response of the first radio signal is monitored; in step S1303, it is determined whether there is at least one AIoT device nearby, and if so, step S1304 is executed; in step S1304, an RRC re - establishment request message is sent to the cell supporting Reader work.

[0590] As an embodiment, the user equipment is a terminal.

[0591] As an embodiment, the response to the RRC connection failure includes: determining that the RRC connection fails.

[0592] As an embodiment, as a response to determining that there is at least one AIoT device nearby, in step S13031, the first node starts a first timer, and the first timer is used to indicate the duration of maintaining a connection with the nearby AIoT device.

[0593] As an embodiment, as a response to determining that there is at least one AIoT device performing an AIoT service nearby, in step S13031, the first node starts the first timer.

[0594] As an embodiment, the first timer is pre - configured.

[0595] As an embodiment, the first timer is determined by the first node.

[0596] As an embodiment, information of the first timer is received from the management node of the first node.

[0597] As an embodiment, information of the first timer is received from the base station that has recently provided service.

[0598] As an embodiment, the sequence relationship between step S13031 and step S1304 can be adjusted. For example, S1304 may occur before S13031, or there may be an overlap in their occurrence times.

[0599] As an embodiment, in response to the completion of RRC connection re - establishment, the first timer stops timing.

[0600] As an embodiment, in response to the expiration of the first timer, the connection to the at least one nearby AIoT device is released.

[0601] As an embodiment, sending an RRC re - establishment request message to the cell that supports Reader operation includes: determining the cell that supports Reader operation.

[0602] As an embodiment, the first node determines the cell that supports Reader operation according to the broadcast message.

[0603] As an embodiment, the first signaling includes an RRC re - establishment request message, and the second signaling includes an RRC re - establishment message.

[0604] As an embodiment, the first signaling is an RRC re - establishment request message, and the second signaling is an RRC re - establishment message.

[0605] As an embodiment, for an example of the content indicated by the first signaling, refer to step S12041 of Embodiment 12; correspondingly, for the behavior of the node that receives the first signaling, refer to the behavior of the second node described in Embodiment 12.

[0606] As an embodiment, in response to determining that there are no AIoT devices nearby in step S1303, the first node sends an RRC re - establishment request message to a suitable cell.

[0607] Embodiment 13 can assist the first node in initiating the RRC connection re - establishment process to preferentially select a cell that supports Reader operation according to the presence of AIoT devices nearby, which is beneficial to improving the continuity and accuracy of the first node in providing AIoT services.

[0608] Example 14

[0609] Embodiment 14 exemplifies a structural block diagram of a processing device in a first node according to an embodiment of the present application; as shown in the appendix Figure 14 as follows. In the appendix Figure 14 the processing device 1400 in the first node includes a first processor 1401.

[0610] The first processor 1401, in response to any condition in a first set of conditions being satisfied, sends a first wireless signal and monitors a response to the first wireless signal; determines whether a first AIoT device is nearby based on the monitoring; wherein, the condition for determining that the first AIoT device is nearby includes that the response to the first wireless signal is successfully received; at least one condition in the first set of conditions depends on the downlink quality of the first node; the response to the first wireless signal is sent by the first AIoT device.

[0611] As an embodiment, the condition for determining that the first AIoT device is nearby further includes: the reception quality of a signal from the first AIoT device exceeds a first threshold.

[0612] As an embodiment, the first processor 1401 sends a first signaling, and the indication of the first signaling depends on whether the response to the first wireless signal is successfully received.

[0613] As an embodiment, the first processor 1401 receives a second signaling, and the second signaling includes configuration information of the AIoT; wherein, the second signaling is triggered by the first signaling.

[0614] As an embodiment, in response to determining that the first AIoT device is nearby based on the monitoring, the first processor 1401 starts a first timer; wherein, the first timer is used to indicate the duration of maintaining a connection with the first AIoT device.

[0615] As an embodiment, in response to determining that the first AIoT device is not nearby based on the monitoring, the first processor 1401 releases the connection to the first AIoT device.

[0616] As an embodiment, the first set of conditions includes at least one of the following conditions: resource overload; de-authorized AIoT function.

[0617] As an embodiment, at least one of the conditions in the first condition set includes at least one of the following conditions: the serving cell is worse than a second threshold; an adjacent cell is better than a first offset value of a special cell; an adjacent cell is better than a third threshold; the special cell is worse than a fourth threshold and an adjacent cell or a secondary cell is better than a fifth threshold; an adjacent cell is better than a second offset value of a secondary cell; at least one condition handover CHO candidate cell satisfies a corresponding CHO execution condition; a radio resource control RRC connection fails.

[0618] As an embodiment, the first condition set includes at least one of the following conditions: a handover occurs; an RRC connection re-establishment occurs.

[0619] As an embodiment, the first node is a user equipment.

[0620] As an embodiment, the user equipment is a terminal.

[0621] As an embodiment, the first node is a relay node device.

[0622] As an embodiment, the first processor 1401 includes {antenna 452, receiver 454, receive processor 456, multi-antenna receive processor 458, controller / processor 459, memory 460, data source 467} in Embodiment 4.

[0623] As an embodiment, the first processor 1401 includes {antenna 452, transmitter 454, transmit processor 468, multi-antenna transmit processor 457, controller / processor 459, memory 460, data source 467} in Embodiment 4.

[0624] Those of ordinary skill in the art can understand that all or part of the steps in the above methods can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk, or an optical disc, etc. Optionally, all or part of the steps of the above embodiments can also be implemented using one or more integrated circuits. Correspondingly, each module unit in the above embodiments can be implemented in a hardware form or in the form of a software function module. This application is not limited to any specific form of the combination of software and hardware. The user equipment, terminal, and UE in this application include, but are not limited to, unmanned aerial vehicles, communication modules on unmanned aerial vehicles, remote control aircraft, aircraft, small aircraft, mobile phones, tablet computers, laptops, vehicle-mounted communication devices, transportation means, vehicles, RSU, wireless sensors, network cards, Internet of Things terminals, RFID terminals, NB-IOT terminals, MTC (Machine Type Communication) terminals, eMTC (enhanced MTC) terminals, data cards, network cards, vehicle-mounted communication devices, low-cost mobile phones, low-cost tablet computers, and other wireless communication devices. The base station or system device in this application includes, but is not limited to, macrocell base stations, microcell base stations, small cell base stations, home base stations, relay base stations, eNB, gNB, TRP (Transmitter Receiver Point), GNSS, relay satellites, satellite base stations, aerial base stations, RSU (Road Side Unit), unmanned aerial vehicles, test equipment, such as transceiver devices or signaling testers that simulate some functions of base stations, and other wireless communication devices.

[0625] Those skilled in the art should understand that the present invention can be implemented in other specified forms without departing from its core or basic characteristics. Therefore, the currently disclosed embodiments should be considered descriptive rather than restrictive in any case. The scope of the invention is determined by the appended claims rather than the previous description, and all modifications within the equivalent meaning and scope thereof are considered to be included therein.

Claims

1. A method for a first node used for wireless communication, characterized in that: include: In response to any condition in the first set of conditions being satisfied, sending a first wireless signal and monitoring a response to the first wireless signal; Determining whether a first AIoT device is nearby based on the monitoring; Among them, the conditions for the first AIoT device to be determined to be nearby include that the response to the first wireless signal is successfully received; at least one condition in the first condition set depends on the downlink quality of the first node; and the response to the first wireless signal is sent by the first AIoT device.

2. The method according to claim 1, characterized in that The condition that the first AIoT device is determined to be nearby also includes: The reception quality of the signal from the first AIoT device exceeds a first threshold.

3. The method according to claim 1 or 2, characterized in that: include: A first signaling is sent, wherein an indication of the first signaling depends on whether the response to the first wireless signal is successfully received.

4. The method according to claim 3, characterized in that include: Receive a second signaling, where the second signaling includes configuration information of the AIoT; The second signaling is triggered by the first signaling.

5. The method according to any one of claims 1 to 4, characterized in that: include: In response to determining that the first AIoT device is nearby based on the monitoring, starting a first timer; Among them, the first timer is used to indicate the length of time to maintain the connection with the first AIoT device.

6. The method according to any one of claims 1 to 4, characterized in that: include: In response to determining that the first AIoT device is not nearby based on the monitoring, the connection to the first AIoT device is released.

7. The method according to any one of claims 1 to 6, characterized in that The first condition set includes at least one of the following conditions: Resource overload; The AIoT function is deauthorized.

8. The method according to any one of claims 1 to 7, characterized in that The at least one condition in the first condition set includes at least one of the following conditions: The serving cell is worse than a second threshold; The neighboring cell is better than the first offset value of the special cell; The neighboring cell is better than the third threshold; The special cell is worse than the fourth threshold and the adjacent cell or the secondary cell is better than the fifth threshold; The adjacent cell is better than the secondary cell by the second offset value; At least one conditional handover CHO candidate cell satisfies the corresponding CHO execution condition; The radio resource control (RRC) connection fails.

9. The method according to any one of claims 1 to 8, characterized in that The first condition set includes at least one of the following conditions: Switching occurs; RRC connection re-establishment occurs.

10. A terminal used for wireless communication, characterized in that: include: The terminal includes: one or more processors and a memory; The memory is coupled to the one or more processors, and the memory is used to store computer program codes, where the computer program codes include computer instructions. The one or more processors call the computer instructions to enable the terminal to execute the method according to any one of claims 1 to 9.

11. A base station used for wireless communication, characterized in that: include: The base station includes: one or more processors and a memory; The memory is coupled to the one or more processors, and the memory is used to store computer program codes, where the computer program codes include computer instructions. The one or more processors call the computer instructions to enable the base station to perform the method according to any one of claims 1 to 7.

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