Communication method and apparatus, computer readable storage medium

Abstract

The application provides a communication method and device and a computer readable storage medium. The communication method comprises the following steps: a reader reports first information to a network device, the first information representing a link condition of at least one A-IoT link between the reader and at least one environmental A-IoT device; and the network device determines whether to reselect the reader based on the link condition of the at least one A-IoT link. The application provides a scheme for realizing reselection of the reader, thereby better supporting A-IoT communication.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a communication method and apparatus, and a computer-readable storage medium. Background Technology

[0002] In the Ambient Internet of Things (A-IoT), A-IoT devices communicate by providing carrier waves from other nodes inside or outside the topology, either through backscatter or by actively generating signals.

[0003] In the current A-IoT network architecture, the reader can act as an intermediate node, communicating bidirectionally with both network devices and A-IoT devices. In the event of a brief interruption between the reader and network devices, the reader can perform handover or Radio Resource Control (RRC) re-establishment. Before the interruption, consideration can be given to the network device reselecting the reader.

[0004] However, how to achieve reader reselection is a technical problem that urgently needs to be solved. Summary of the Invention

[0005] This application provides a communication method and apparatus, and provides a solution for reader reselection to better support A-IoT communication.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] In a first aspect, a communication method is provided, which is applied to a terminal device, or a chip or chip module in a terminal device. The communication method includes: reporting first information, wherein the first information represents the link status of at least one A-IoT link between the terminal device and at least one environmental Internet of Things (A-IoT) device.

[0008] In this application's technical solution, the reader can report first information to the network device, enabling the network device to know the link status of at least one A-IoT link between the reader and at least one A-IoT device, thereby promptly detecting whether the reader is no longer suitable to serve the A-IoT device. Thus, the network device can determine whether to reselect a reader based on the link status of at least one A-IoT link, avoiding prolonged reader disconnection and ensuring timely reader reselection to guarantee the normal implementation of A-IoT communication.

[0009] Optionally, the first information includes any one of the following: channel measurement results of at least one A-IoT uplink signal, wherein the at least one A-IoT link is used to transmit the at least one A-IoT uplink signal; and processing results of the channel measurement results.

[0010] In the technical solution of this application, the channel measurement results can directly reflect the link quality of the corresponding A-IoT link, and the processing results can indirectly reflect the link status of the A-IoT link.

[0011] Optionally, the at least one A-IoT uplink signal is an A-IoT reference signal, or the at least one A-IoT uplink signal is A-IoT uplink data.

[0012] The technical solution of this application introduces a dedicated A-IoT reference signal or reuses existing A-IoT uplink data, allowing the reader to measure and obtain the link status of at least one A-IoT link.

[0013] Optionally, the processing result includes at least one of the following: the relationship between the channel measurement result of the at least one A-IoT uplink signal and the reference signal quality, wherein the reference signal quality is a fixed value; the number of A-IoT links whose channel measurement result of the at least one A-IoT uplink signal is less than a first threshold; and the proportion of A-IoT links whose channel measurement result of the at least one A-IoT uplink signal is less than the first threshold.

[0014] Optionally, the communication method further includes: reporting second information, the second information including: the location information of the at least one A-IoT device; and / or, the information of the A-IoT device corresponding to each location in the location information of the at least one A-IoT device.

[0015] In the technical solution of this application, the reader can report second information to the network device so that the network device can know the location information of at least one A-IoT device; and / or, the information of each A-IoT device corresponding to each location in the location information of at least one A-IoT device, so that the network device can reselect the reader based on the second information, thereby being able to reselect the reader that can provide better communication services, and further ensuring the normal implementation of A-IoT communication.

[0016] Optionally, the information of the A-IoT device includes at least one of the following: the number of A-IoT devices; the type of A-IoT device; and the remaining power of the A-IoT device.

[0017] Optionally, the orientation information of the at least one A-IoT device includes at least one of the following: the angle of arrival of the uplink signal transmitted by the at least one A-IoT device; the zenith angle of arrival of the uplink signal transmitted by the at least one A-IoT device; the departure angle of the downlink signal received by the at least one A-IoT device; and the departure angle of the downlink signal received by the at least one A-IoT device.

[0018] Optionally, the communication method further includes: receiving measurement configuration information, wherein the measurement configuration information indicates that the measurement obtains the first information, or wherein the measurement configuration information indicates that the measurement obtains the first information and the second information.

[0019] In the technical solution of this application, the network device configures the reader with the content to be measured by measuring configuration information, which can ensure the flexibility of measurement and reporting.

[0020] Optionally, reporting the first information includes: reporting the first information in response to the first information meeting a trigger condition, wherein the trigger condition indicates the link status requirements of the A-IoT link.

[0021] In the technical solution of this application, the reader reports the first information when the triggering condition is met, which can avoid frequent reporting of the first information and save device power consumption and signaling overhead.

[0022] Optionally, the triggering condition includes at least one of the following: the number of A-IoT links whose channel measurement results are less than a first threshold in the first information is greater than or equal to a first value; the proportion of A-IoT links whose channel measurement results are less than the first threshold is greater than or equal to a second value; and the change in the channel measurement results is greater than or equal to a second threshold.

[0023] Optionally, the change in the channel measurement result being greater than or equal to the second threshold includes: the offset of the channel measurement result relative to the reference signal quality being greater than or equal to the second threshold, or the offset of the channel measurement result relative to the reference signal quality within a first time period being greater than or equal to the second threshold.

[0024] Optionally, the communication method further includes receiving downlink signaling, the downlink signaling indicating the release of the at least one A-IoT link.

[0025] In a second aspect, a communication method is provided, which is applied to a reader, or a chip in a reader, or a chip module, the communication method comprising: receiving first information, the first information representing the link status of at least one A-IoT link with at least one A-IoT device, the first information being used to determine whether to reselect the reader.

[0026] In this application's technical solution, the network device obtains the link status of at least one A-IoT link between the reader and at least one A-IoT device through first information, thereby promptly detecting whether the reader is no longer suitable for serving the A-IoT device. Thus, the network device can determine whether to reselect a reader based on the link status of at least one A-IoT link, avoiding prolonged reader disconnection and enabling timely reader reselection to ensure the normal implementation of A-IoT communication.

[0027] Optionally, the first information includes any one of the following: channel measurement results of at least one A-IoT uplink signal, wherein the at least one A-IoT link is used to transmit the at least one A-IoT uplink signal; and processing results of the channel measurement results.

[0028] Optionally, the at least one A-IoT uplink signal is an A-IoT reference signal, or the at least one A-IoT uplink signal is A-IoT uplink data.

[0029] Optionally, the processing result includes at least one of the following: the relationship between the channel measurement result of the at least one A-IoT uplink signal and the reference signal quality, wherein the reference signal quality is a fixed value; the number of A-IoT links whose channel measurement result of the at least one A-IoT uplink signal is less than a first threshold; and the proportion of A-IoT links whose channel measurement result of the at least one A-IoT uplink signal is less than the first threshold.

[0030] Optionally, the communication method further includes: receiving second information, the second information being used to reselect the reader, the second information including:

[0031] The location information of the at least one A-IoT device; and / or, the information of the A-IoT device corresponding to each location in the location information of the at least one A-IoT device.

[0032] Optionally, the communication method further includes: sending measurement configuration information, wherein the measurement configuration information instructs the measurement to obtain the first information, or wherein the measurement configuration information instructs the measurement to obtain the first information and the second information.

[0033] Optionally, the communication method further includes: sending downlink signaling, the downlink signaling indicating the release of the at least one A-IoT link.

[0034] Thirdly, a communication device is provided, the device comprising: a communication module for reporting first information, the first information representing the link status of at least one A-IoT link with at least one A-IoT device.

[0035] Fourthly, a communication device is provided, the device comprising: a communication module for receiving first information, the first information representing the link status of at least one A-IoT link with at least one A-IoT device, the first information being used to determine whether to reselect a reader.

[0036] Fifthly, a computer-readable storage medium is provided having a computer program stored thereon, the computer program being executed by a processor to perform any one of the methods provided in the first or second aspect.

[0037] In a sixth aspect, a communication device is provided, including a memory and a processor, wherein the memory stores a computer program executable on the processor, and the processor executes the computer program to perform any of the methods provided in the first aspect.

[0038] In a seventh aspect, a communication device is provided, including a memory and a processor, wherein the memory stores a computer program executable on the processor, and the processor executes the computer program to perform any of the methods provided in the second aspect.

[0039] Eighthly, a computer program product is provided, on which a computer program is stored, the computer program being executed by a processor to perform any one of the methods provided in the first or second aspect.

[0040] Ninthly, a communication system is provided, including the aforementioned terminal device and the aforementioned reader.

[0041] In a tenth aspect, embodiments of this application also provide a chip that stores a computer program, which, when executed by the chip, implements the steps of the above-described method.

[0042] Eleventhly, embodiments of this application also provide a system chip for use in a terminal. The system chip includes at least one processor and an interface circuit. The interface circuit and the at least one processor are interconnected via a line. The at least one processor is used to execute instructions to perform any one of the methods provided in the first or second aspect. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of a network topology for A-IoT in the existing technology;

[0044] Figure 2 This is a schematic diagram of another A-IoT network topology in existing technologies;

[0045] Figure 3 This is an interactive flowchart of a communication method provided in an embodiment of this application;

[0046] Figure 4This is an interactive flowchart of another communication method provided in an embodiment of this application;

[0047] Figure 5 This is an interactive flowchart of another communication method provided in the embodiments of this application;

[0048] Figure 6 This is an interactive flowchart of another communication method provided in the embodiments of this application;

[0049] Figure 7 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0050] Figure 8 This is a schematic diagram of the hardware structure of a communication device provided in an embodiment of this application. Detailed Implementation

[0051] The latest 3rd Generation Partnership Project (3GPP) meeting identified the first 16 projects in the Radio Access Network (RAN) field for the R19 protocol (Release 19), with A-IoT being one of the important topics in the R19 standardization.

[0052] A-IoT is a highly simplified Internet of Things (IoT) technology that allows objects to harvest energy from environmental sources such as light sources, heat sources, and radio waves, and then transmit signals via backscattering and low-power radio frequency (RF) to achieve low-bandwidth data transmission. It offers advantages in transmission speed, power consumption, size, and cost. 3GPP's A-IoT project research focuses on new ultra-low-power tag devices to enable ultra-low-power, ultra-low-cost IoT command-line applications. A-IoT can achieve signal transmission over a range of several meters with power consumption as low as 1 milliwatt. 3GPP Release 19 primarily considers two A-IoT modes: microwatt and microwatt-level. The microwatt-level mode relies mainly on pure reflection. That is, the reader sends a signal, and the A-IoT device reflects the energy back. Its characteristic is low energy consumption, typically around 1 microwatt. Although the amount of energy received and reflected is small, it is sufficient to transmit low-bandwidth data and is suitable for electronic tag scenarios. The microwatt-level mode harvests energy and drives an amplifier, allowing the signal to be transmitted over a longer distance. This mode harvests and stores energy through capacitors. For example, when a certain amount of voltage is collected, it can drive a small power amplifier, thereby amplifying the signal and transmitting it further, reaching the level of 100 microwatts. In this mode, applications such as logistics tracking and environmental monitoring can be realized.

[0053] In backscatter communication, the sender does not need to actively generate a signal; instead, it communicates by reflecting electromagnetic waves generated by other devices. Backscatter is typically achieved by the sender controlling its antenna to switch between completely absorbing and completely reflecting signals. The reflected signals will then have different amplitudes, which can represent different information. When an electromagnetic wave encounters the boundary between two media with different impedances during propagation, the wave will be absorbed or reflected to some extent.

[0054] First, the network topology of A-IoT will be explained.

[0055] Please refer to Figure 1 In network topology 1, the reader communicates directly with the A-IoT device. This bidirectional communication between the A-IoT device and the reader includes A-IoT data and / or A-IoT signaling. The reader can be a network device or a user equipment (UE).

[0056] For example, communication between the reader and the A-IoT device may include network device-to-device communication.

[0057] Please refer to Figure 2 In network topology 2, the reader can communicate directly with A-IoT devices and also directly with network devices. The reader can be a terminal device.

[0058] For downlink data transmission from the reader to the A-IoT device, the information bits to be sent by the reader are encoded, modulated, waveform generated, and resource-mapped before being sent out. The resource-mapped signal is then transmitted to the A-IoT device via a transmission medium (e.g., electromagnetic waves). The A-IoT device obtains the downlink data through envelope detection, demodulation, and signal decoding. Similarly, for uplink data transmission from the A-IoT device to the reader, the information bits to be sent by the A-IoT device are encoded, modulated, and then sent to the reader via a transmission medium. The reader obtains the uplink data through demodulation and signal decoding.

[0059] The ultimate function of an A-IoT system is data acquisition. This data exchange within the system has two aspects: downlink (DL, also known as R2D) transmission and uplink (UL, also known as D2R) transmission. Downlink transmission refers to data transmission from the reader to the A-IoT device, while uplink transmission refers to data transmission from the A-IoT device to the reader. Accordingly, the data transmission link from the reader to the A-IoT device is an R2D link, and the data transmission link from the A-IoT device to the reader is a D2R link. The channel used for downlink transmission can be called the Physical Reader Device channel (PRDCH, or PR2DCH), and the channel used for uplink transmission can be called the Physical Device Reader channel (PDRCH, or PD2RCH).

[0060] In this embodiment, the device can be a tag (also known as an electronic tag). The device can be a passive device, specifically a passive tag that collects energy through backscattering technology to send and receive messages. Passive tags include, but are not limited to, power-free terminal tags such as radio frequency identification (RFID), Bluetooth, and Zigbee. The device can also be a semi-passive device or an active device. A semi-passive device, also known as a battery-assisted passive device, is powered by a local battery but still uses backscattering for communication.

[0061] The terminal device in this application embodiment is a device with wireless communication capabilities, and may be referred to as a terminal, mobile station (MS), mobile terminal (MT), access terminal device, vehicle-mounted terminal device, industrial control terminal device, UE unit, UE station, mobile station, remote station, remote terminal device, mobile device, UE terminal device, wireless communication device, UE agent, or UE device, etc. The UE can be fixed or mobile. It should be noted that the UE can support at least one wireless communication technology, such as Long Term Evolution (LTE) or New Radio (NR). For example, a UE can be a mobile phone, tablet, desktop computer, laptop computer, all-in-one computer, in-vehicle terminal, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal in industrial control, wireless terminal in self-driving, wireless terminal in remote medical surgery, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, cellular phone, cordless phone, session initiation protocol (SIP) phone, wireless local loop (WLL) station, personal digital assistant (PDA), handheld device with wireless communication capabilities, computing device or other processing device connected to a wireless modem, wearable device, terminal device in future mobile communication networks, or terminal device in future evolved public land mobile network (PLMN), etc. In some embodiments of this application, the terminal device may also be a device with transceiver functions, such as a chip system. The chip system may include a chip, and may also include other discrete components.

[0062] In this application embodiment, the network device is a communication device that provides wireless communication functions for terminal devices, and may also be referred to as an access network device, radio access network (RAN) device, or access network element. The network device can support at least one wireless communication technology, such as LTE, NR, etc. Examples of network devices include, but are not limited to: intermediate nodes, auxiliary nodes, next-generation base stations (gNBs) in 5th-generation (5G) mobile communication systems, evolved node Bs (eNBs), radio network controllers (RNCs), node Bs (NBs), basestation controllers (BSCs), base transceiver stations (BTSs), home base stations (e.g., home evolved node Bs or home node Bs (HNBs), baseband units (BBUs), transmitting and receiving points (TRPs), transmitting points (TPs), mobile switching centers, etc. Network devices can also be radio controllers, centralized units (CUs), and / or distributed units (DUs) in cloud radio access network (CRAN) scenarios, or access network devices can be relay stations, access points, vehicle-mounted devices, and network devices in future mobile communications or future evolved PLMNs. In some embodiments, network devices can also be means for providing wireless communication functions to UEs, such as chip systems. For example, a chip system may include chips, and may also include other discrete devices.

[0063] In network topology 2, reader selection can be made solely by the core network, solely by the A-IoT Radio Access Network (RAN), or the core network can provide a list of candidate readers, with the A-IoT RAN ultimately selecting one reader.

[0064] As described in the background section, how to enable reader reselection before or after a brief interruption between the reader and network device is a technical problem that urgently needs to be solved.

[0065] In this application's technical solution, the reader can report first information to the network device, enabling the network device to know the link status of at least one A-IoT link between the reader and at least one A-IoT device. Therefore, the network device can determine whether to reselect the reader based on the link status of at least one A-IoT link, thereby achieving timely reselection of the reader and ensuring the normal implementation of A-IoT communication.

[0066] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, specific embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0067] This application provides a communication method, referring to... Figure 3 The following will provide a detailed explanation through specific steps.

[0068] It is understood that, in specific implementations, the communication method can be implemented using software programs, which run within a processor integrated into the chip or chip module. The method can also be implemented using a combination of software and hardware; this application does not impose any limitations on this approach. The following description uses a reader as the primary execution device.

[0069] Step 301: The reader sends first information to the network device. Correspondingly, the network device receives the first information. The first information characterizes the link status of at least one A-IoT link between the reader and at least one A-IoT device. Specifically, there is one A-IoT link between the reader and each A-IoT device.

[0070] At least one A-IoT link can be an A-IoT link between the reader and all A-IoT devices, or it can be an A-IoT link between the reader and some A-IoT devices; this application does not impose any restrictions. "All A-IoT devices" refers to all A-IoT devices that have a communication connection with the reader, and "some A-IoT devices" refers to some of the A-IoT devices among all the A-IoT devices that have a communication connection with the reader.

[0071] For example (referred to as Example 1), if all A-IoT devices include 10 A-IoT devices, then at least one A-IoT link includes 10 A-IoT links, and there is a one-to-one correspondence between the 10 A-IoT devices and the 10 A-IoT links.

[0072] Specifically, an A-IoT link can be a D2R link, meaning that the first information can characterize the link status of at least one D2R link.

[0073] In this embodiment, since the reader reselection is performed by the network device, while the link status of the A-IoT link is measured by the reader, the reader can report the first information to the network device. This allows the network device to know the link status of at least one A-IoT link between the reader and at least one A-IoT device, thereby promptly detecting whether the reader is no longer suitable to serve the A-IoT device. Thus, the network device can determine whether to reselect the reader based on the link status of at least one A-IoT link, avoiding prolonged reader disconnection and ensuring timely reader reselection, thus guaranteeing the normal implementation of A-IoT communication.

[0074] Optionally, the first information includes one or more of the following:

[0075] Channel measurement results (also known as signal quality measurement results) of at least one A-IoT D2R signal, wherein the at least one A-IoT link is used to transmit the at least one A-IoT D2R signal;

[0076] Processing results of channel measurement results for at least one A-IoT D2R signal.

[0077] In a non-limiting embodiment, the channel measurement result of at least one A-IoT D2R signal can be obtained by a reader by measuring at least one A-IoT D2R signal.

[0078] For example, based on Example 1 above, at least one A-IoT D2R signal can be 10 A-IoT D2R signals, wherein 10 A-IoT links correspond one-to-one with 10 A-IoT D2R signals. The channel measurement result of an A-IoT D2R signal can characterize the link status of its corresponding A-IoT link. The channel measurement result of an A-IoT D2R signal can be obtained by measuring the A-IoT D2R signal.

[0079] In one specific implementation, the A-IoT D2R signal can be an A-IoT reference signal.

[0080] In this embodiment, the A-IoT reference signal is a D2R reference signal. By introducing a dedicated A-IoT reference signal, the reader can obtain the channel measurement results of at least one A-IoT D2R signal.

[0081] In another specific implementation, the A-IoT D2R signal can be A-IoT D2R data.

[0082] In this embodiment, without introducing a dedicated A-IoT reference signal, the reader can measure A-IoT D2R data, i.e. D2R feedback data, to obtain channel measurement results of at least one A-IoT D2R signal.

[0083] Refer to together Figure 4 , Figure 4 The flowchart of a method for obtaining channel measurement results is shown.

[0084] In step 401, at least one A-IoT device sends an A-IoT reference signal or A-IoT D2R data (also referred to as A-IoT uplink data) to the reader. Accordingly, the reader receives the A-IoT reference signal or A-IoT D2R data.

[0085] Specifically, each A-IoT device uses an A-IoT link with the reader to transmit A-IoT reference signals or A-IoT D2R data.

[0086] In step 402, the reader measures the A-IoT reference signal. Accordingly, the reader obtains the channel measurement results of the A-IoT reference signal. Alternatively, the reader measures the A-IoT D2R data, and accordingly, the reader obtains the channel measurement results of the A-IoT D2R data.

[0087] For example, the measurement parameters measured by the reader may include one or more of the following: Reference Signal Receiving Power (RSRP), Reference Signal Receiving Quality (RSRQ), Signal to Interference plus Noise Ratio (SINR), Received Signal Strength Indication (RSSI). The channel measurement results may include the measurement results of the measurement parameters, such as one or more of the following: RSRP measurement results (e.g., the measured value of RSRP), RSRQ measurement results (e.g., the measured value of RSRQ), SINR measurement results (e.g., the measured value of SINR), RSSI measurement results (e.g., the measured value of RSSI).

[0088] The measurement parameters for different A-IoT links can be the same or different, and this application does not impose any restrictions. An A-IoT link can have one or more measurement parameters, and this application does not impose any restrictions either.

[0089] Among them, the channel measurement results can directly reflect the link quality of the corresponding A-IoT link. For example, if the measured RSRP / RSRQ of A-IoT link 1 is less than a predefined threshold, it indicates that the link quality of A-IoT link 1 has deteriorated and may not be able to meet communication requirements or transmit data.

[0090] Furthermore, the reader can further process the channel measurement results to obtain the processed results.

[0091] For example, the processing result includes at least one of the following:

[0092] The relationship between channel measurement results of at least one A-IoT D2R signal and the quality of the reference signal;

[0093] The number of A-IoT links for which at least one A-IoT D2R signal channel measurement result is less than a first threshold;

[0094] The proportion of A-IoT links whose channel measurement results for at least one A-IoT D2R signal are less than a first threshold.

[0095] The reference signal quality can be a fixed value. The relationship between channel measurement results and the reference signal quality reflects the relative motion between the reader and the corresponding A-IoT device, such as relatively low-speed, medium-speed, or high-speed motion. Network devices can determine whether to reselect a reader based on the relative motion between the reader and the corresponding A-IoT device.

[0096] Different measurement parameters can reflect different reference signal quality and strength. For example, the reference signal received power corresponding to RSRP can be called RSRP reference signal received power, the reference signal quality corresponding to RSRQ can be called RSRQ reference signal quality, the signal-to-interference-plus-noise ratio (SINR) corresponding to SINR can be called SINR reference signal interference-plus-noise ratio, and the reference signal received signal strength indication (RSSI) corresponding to RSSI can be called RSSI received signal strength indication. The values ​​of reference signal quality and strength corresponding to different measurement parameters can be the same or different, without restriction.

[0097] For example, the relationship between channel measurement results and reference signal quality can be represented by the difference between the reference signal quality and the channel measurement results. This relationship applies to the same measurement parameter. For instance, assuming the measurement parameters of an A-IoT D2R signal include RSRP and RSSI, the relationship between the channel measurement results and the reference signal quality of this A-IoT D2R signal can include the difference between the RSRP measurement result and the RSRP reference signal quality, as well as the difference between the RSSI measurement result and the RSSI reference signal quality.

[0098] The number or proportion of A-IoT links where at least one A-IoT D2R signal channel measurement result is less than a first threshold can indirectly reflect the overall link quality of the A-IoT links. That is, through this processing result, network devices can determine the proportion of degraded links among the links of A-IoT devices performing D2R responses under the reader, allowing the network device to better determine whether the current reader is suitable to continue serving A-IoT devices.

[0099] Different measurement parameters can have their own corresponding first thresholds. For example, the first threshold corresponding to RSRP can be called the RSRP first threshold, the first threshold corresponding to RSRQ can be called the RSRQ first threshold, the first threshold corresponding to SINR can be called the SINR first threshold, and the first threshold corresponding to RSSI can be called the RSSI first threshold. The values ​​of the first thresholds corresponding to different measurement parameters can be the same or different, and this application does not impose any restrictions on this.

[0100] It should be noted that the specific values ​​of the reference signal quality and the first threshold can be pre-configured by the network device or specified by the communication protocol, and this application does not impose any restrictions on them.

[0101] It should be noted that the sequence number of each step in this embodiment does not represent a limitation on the execution order of each step.

[0102] In a non-linear embodiment, the reader may also report second information to the network device to assist the network device in reselecting the reader.

[0103] Refer to together Figure 5 , Figure 5 The flowchart of a communication method is shown.

[0104] In step 501, the reader sends first information to the network device. Correspondingly, the network device receives the first information.

[0105] In one specific implementation, the reader can periodically report the first information.

[0106] The reporting cycle of the first information can be configured by the network equipment or specified by the communication standard protocol; this application does not impose any restrictions on this.

[0107] In another specific implementation, the reader may be triggered to report the first information by an event.

[0108] Specifically, the event that triggers the reader to report the first information can be that the first information meets a triggering condition. The triggering condition indicates the link status requirements of the A-IoT link. That is, in response to the first information meeting the triggering condition, or in other words, when the first information meets the triggering condition, the reader reports the first information to the network device.

[0109] Specifically, the triggering condition may include at least one of the following:

[0110] Triggering condition 1: The number of A-IoT links whose channel measurement results are less than the first threshold in the first information is greater than or equal to the first value;

[0111] Triggering condition 2: The proportion of A-IoT links whose channel measurement results are less than the first threshold in the first information is greater than or equal to the second value;

[0112] Triggering condition 3: The change in the channel measurement result in the first information is greater than or equal to the second threshold.

[0113] Optionally, the number of A-IoT links whose channel measurement results are less than the first threshold in the first information can refer to the number of A-IoT links whose channel measurement results for all measurement parameters are less than the first threshold corresponding to the corresponding parameter, or it can refer to the number of A-IoT links whose channel measurement results for some measurement parameters (for example, greater than a certain proportion of measurement parameters, which can be set to, for example, 80%) are less than the first threshold corresponding to the corresponding parameter.

[0114] For example, assuming at least one A-IoT D2R signal includes A-IoT D2R signal 1, A-IoT D2R signal 2, and A-IoT D2R signal 3, the measurement parameters of A-IoT D2R signal 1 include RSRP and RSSI, the measurement parameters of A-IoT D2R signal 2 include RSRP and RSRQ, and the measurement parameters of A-IoT D2R signal 3 include RSRP and SINR, then the channel measurement results in the first information include the RSRP measurement result of A-IoT D2R signal 1, the RSSI measurement result of A-IoT D2R signal 1, the RSRP measurement result of A-IoT D2R signal 2, the RSRQ measurement result of A-IoT D2R signal 2, the RSRP measurement result of A-IoT D2R signal 3, and the SINR measurement result of A-IoT D2R signal 3. Among them, the RSRP measurement result of A-IoT D2R signal 1 is less than the first threshold of RSRP, the RSSI measurement result of A-IoT D2R signal 1 is less than the first threshold of RSSI, the RSRP measurement result of A-IoT D2R signal 2 is less than the first threshold of RSRP, the RSRQ measurement result of A-IoT D2R signal 2 is greater than the first threshold of RSRQ, the RSRP measurement result of A-IoT D2R signal 3 is less than the first threshold of RSRP, and the SINR measurement result of A-IoT D2R signal 3 is less than the first threshold of SINR.

[0115] If the number of A-IoT links whose channel measurement results are less than the first threshold in the first information can refer to the number of A-IoT links whose channel measurement results for all measurement parameters are less than the first threshold corresponding to the respective parameters, then, since the channel measurement results for all measurement parameters of A-IoT D2R signal 1 and A-IoT D2R signal 3 are less than the first threshold corresponding to the respective parameters, the number of A-IoT links whose channel measurement results are less than the first threshold in the first information is 2. At this point, if the first value is 2, trigger condition 1 is satisfied; if the first value is 3, trigger condition 1 is not satisfied. If the second value is 60%, trigger condition 2 is satisfied; if the second value is 80%, trigger condition 2 is not satisfied.

[0116] If the number of A-IoT links with channel measurement results less than the first threshold in the first information refers to the number of A-IoT links where more than 80% of the measurement parameters have channel measurement results less than the corresponding first threshold, then since the channel measurement results of all measurement parameters of A-IoT D2R signal 1 and A-IoT D2R signal 3 are less than the corresponding first threshold, satisfying the requirement that more than 80% of the measurement parameters have channel measurement results less than the corresponding first threshold, while only 50% of the measurement parameters of A-IoT D2R signal 2 have channel measurement results less than the corresponding first threshold, then the number of A-IoT links with channel measurement results less than the first threshold in the first information is 2. At this point, if the first value is 2, trigger condition 1 is satisfied; if the first value is 3, trigger condition 1 is not satisfied. If the second value is 60%, trigger condition 2 is satisfied; if the second value is 80%, trigger condition 2 is not satisfied.

[0117] Furthermore, in trigger condition 3, the change in the channel measurement result is greater than or equal to the second threshold, including: the offset of the channel measurement result relative to the reference signal quality is greater than or equal to the second threshold; or the change in the channel measurement result within a first time period T is greater than or equal to the second threshold. The first time period T can be specified by the protocol, predefined, or pre-configured by the network device; this application does not impose any restrictions on it.

[0118] Specifically, the first time period can be achieved by setting the duration of a timer.

[0119] For example, if the difference between the reference signal quality (which can be denoted as A-IoT RSRP ref) and the channel measurement result (which can be denoted as A-IoT RSRP) is greater than the second threshold (which can be denoted as TH2), the reader reports the first information to the network device.

[0120] For example, if the difference between the A-IoT RSRP ref and the A-IoT RSRP is always greater than the second threshold within the timer's timing duration, the reader reports the first information to the network device.

[0121] Different measurement parameters can have their own corresponding second thresholds. For example, the second threshold corresponding to RSRP can be called the RSRP second threshold, the second threshold corresponding to RSRQ can be called the RSRQ second threshold, the second threshold corresponding to SINR can be called the SINR second threshold, and the second threshold corresponding to RSSI can be called the RSSI second threshold. The values ​​of the second thresholds corresponding to different measurement parameters can be the same or different, without restriction.

[0122] Optionally, the change in the channel measurement results in the first information being greater than or equal to the second threshold can refer to the change in all channel measurement results being greater than or equal to the second threshold, or it can refer to the change in a portion of the channel measurement results (for example, greater than a certain proportion of the channel measurement results, which can be set, for example, 80%) being greater than or equal to the second threshold.

[0123] For example, assuming at least one A-IoT D2R signal includes A-IoT D2R signal 1, A-IoT D2R signal 2, and A-IoT D2R signal 3, and the measurement parameters of A-IoT D2R signal 1 include RSRP and RSSI, the measurement parameters of A-IoT D2R signal 2 include RSRP and RSRQ, and the measurement parameters of A-IoT D2R signal 3 include RSRP and SINR, then the channel measurement results in the first information include the RSRP measurement result of A-IoT D2R signal 1, the RSSI measurement result of A-IoT D2R signal 1, the RSRP measurement result of A-IoT D2R signal 2, the RSRQ measurement result of A-IoT D2R signal 2, the RSRP measurement result of A-IoT D2R signal 3, and the SINR measurement result of A-IoT D2R signal 3. There are a total of 6 channel measurement results, of which the changes in 5 channel measurement results are greater than or equal to the second threshold. At this point, if the change in the channel measurement results in the first information is greater than or equal to the second threshold, meaning the change in all channel measurement results is greater than or equal to the second threshold, then trigger condition 3 is not met. If the change in the channel measurement results in the first information is greater than or equal to the second threshold, meaning the change in more than 80% of the channel measurement results is greater than or equal to the second threshold, then trigger condition 3 is met.

[0124] It should be noted that the specific values ​​of the first and second thresholds can be configured by the network equipment or specified by the communication standard protocol, and this application does not impose any restrictions on them.

[0125] In a variation, the triggering condition could also be that the reader detects a Radio Link Monitoring (RLM) event, for example, the reader receives N consecutive out-of-sync indications from the physical layer and does not receive M consecutive in-sync indications from the physical layer before timer T expires.

[0126] Among them, the preset values ​​N and M can be values ​​pre-configured by the network device or specified by the communication protocol, and the timer T can be timer T310 or other appropriate timers. This application does not limit them.

[0127] Optionally, the network device can determine whether to reselect the timer based on the first information. For example, the network device can determine the link quality of each A-IoT link based on the channel measurement results of at least one A-IoT D2R signal, and then determine whether to reselect the timer based on the link quality of each A-IoT link. For instance, if the network device determines that the link quality of most of the A-IoT links in at least one A-IoT link (e.g., more than a certain number or proportion of A-IoT links) is poor (e.g., the channel measurement results do not meet the requirements), then it can determine to reselect the timer.

[0128] Optionally, the network device may also determine whether to reselect the timer based on the processing result of the channel measurement result of at least one A-IoT D2R signal. For example, if the number of A-IoT links whose channel measurement result is less than a first threshold is greater than a quantity threshold (this quantity threshold can be specified by the network configuration or protocol or pre-configured without restriction), then a reselection timer can be determined; as another example, if the number of A-IoT links whose channel measurement result is less than the first threshold is greater than a proportion threshold (this proportion threshold can be specified by the network configuration or protocol or pre-configured without restriction), then a reselection timer can be determined; as yet another example, if the number of A-IoT links whose difference between the reference signal quality and the channel measurement result meets the condition is greater than a quantity threshold, then a reselection timer can be determined. This condition can be determined by the network device, and the specific implementation can be based on the network device, which is not limited in this application.

[0129] The above is merely an example. In practice, network devices can also determine whether to reselect the timer based on a combination of the various processing results mentioned above, and this application does not impose any limitations. For example, the network device can determine the reselection timer if the number of A-IoT links with channel measurement results less than a first threshold is greater than a quantity threshold, and the number of A-IoT links with a difference between the reference signal quality and the channel measurement results satisfying a condition is also greater than a quantity threshold. The two quantity thresholds mentioned can be the same or different, and this application does not impose any limitations. In step 502, the reader sends second information to the network device. Correspondingly, the network device receives the second information.

[0130] In this embodiment, the network device can reselect the reader based on the second information, thereby reselecting a reader that can provide better communication services, further ensuring the normal implementation of A-IoT communication.

[0131] In this embodiment, the second information includes: the location information of at least one A-IoT device; and / or, the information of the A-IoT device corresponding to each location in the location information of at least one A-IoT device.

[0132] Among them, the location information of at least one A-IoT device is used to determine the location of the A-IoT device. By combining this location information with the channel measurement results of the A-IoT link, the network device can roughly determine the location and distance of the A-IoT device relative to the reader, and thus select a more suitable reader based on the location and distance of the A-IoT device relative to the reader.

[0133] By using information from A-IoT devices, network devices can determine the type of A-IoT device. Combined with location information, they can determine the number of A-IoT devices in a specific location. Since different types of A-IoT devices support different maximum communication distances—for example, A-IoT devices of type 1 (device 1) support a maximum communication distance of 10-20m under D1T1, while A-IoT devices of type 2a (device 2a) support a maximum communication distance of 20-30m under D1T1, and A-IoT devices of type 2b (device 2b) support a maximum communication distance of 30-50m under D1T1 (where D1T1 represents deployment scenario 1, topology 1, referring to a scenario where both the reader and the A-IoT device are indoors)—network devices can reselect a more suitable reader based on the device information of the A-IoT devices.

[0134] Specifically, the location information of at least one A-IoT device includes at least one of the following:

[0135] The angle of arrival (AoA) of the D2R signal sent by at least one A-IoT device.

[0136] The zenith angle of arrival (ZOA) of the D2R signal transmitted by at least one A-IoT device;

[0137] The angle of departure (AOD) of the downlink signal (i.e., R2D signal) received by at least one A-IoT device;

[0138] The zenith angle of departure (ZOD) of the R2D signal received by at least one A-IoT device.

[0139] Specifically, the information of an A-IoT device includes at least one of the following:

[0140] The number of A-IoT devices;

[0141] Types of A-IoT devices;

[0142] Remaining battery power of A-IoT devices.

[0143] Among them, the types of A-IoT devices can be device type 1, device type 2a, and device type 2b.

[0144] Among them, the remaining power of the A-IoT device can help the network device determine the remaining time that the A-IoT device can work normally, and thus determine a more suitable reader based on the remaining time.

[0145] For example, a network device can reselect a reader based on the location information of at least one A-IoT device. For instance, it can determine the number of A-IoT devices in each location based on the location information and reselect a reader in the location with a larger number of A-IoT devices.

[0146] For example, a network device can reselect a reader based on information about A-IoT devices in various locations. For instance, based on the number of A-IoT devices in each location, it can reselect a reader in the location with the largest number of A-IoT devices. Or, based on the type of A-IoT device, it can determine the A-IoT devices located at different communication distances, and based on the number of A-IoT devices at different communication distances, it can select a reader near the A-IoT device with the largest number of devices at that communication distance. Of course, the network device can also combine and comprehensively judge this information; this application does not impose any limitations.

[0147] In this embodiment, the first information and the second information can be located in the same signaling message; the first information and the second information can also be located in different signaling messages.

[0148] Those skilled in the art will understand that step 501 can be considered as the above. Figure 3 The execution steps corresponding to step 301 in the illustrated embodiment are complementary in their specific implementation principles and logic. Therefore, the explanations of the terms involved in this embodiment can be found by referring to... Figure 3 The relevant descriptions of the embodiments shown will not be repeated here.

[0149] In a non-limiting embodiment, the content that the reader needs to report can be pre-configured by the network device.

[0150] Refer to together Figure 6 , Figure 6 The flowchart of a communication method is shown.

[0151] In step 601, the network device sends measurement configuration information to the reader. The measurement configuration information may instruct the reader to measure and obtain first information, or it may instruct the reader to measure and obtain both first and second information. For example, the measurement configuration information may include one or more pieces of information such as measurement parameters and reported content.

[0152] In this embodiment, the first information can be used by the network device to determine whether to reselect a reader, and the second information can be used by the network device to reselect a suitable reader.

[0153] Furthermore, the measurement configuration information may also include trigger conditions or the reporting cycle of the first information.

[0154] In step 602, the reader reports first information to the network device. Alternatively, the reader reports first information and second information to the network device. The network device performs reader reselection based on the first information (or the first and second information).

[0155] For example, reader reselection is performed by the network device. If the base station determines that reader reselection is necessary, the base station selects a target reader, or the base station selects a suitable target reader from the candidate reader list provided by the core network. The base station then initiates an A-IoT service request to the target reader.

[0156] For example, reader reselection is performed by the core network, such as the A-IoT function. The base station can provide recommended candidate readers based on information reported by the readers, and the core network selects the target reader from the candidate readers. The core network then initiates an A-IoT service request to the target reader.

[0157] In step 603, the network device sends downlink signaling to the reader, indicating the release of at least one A-IoT link. Accordingly, the reader receives the downlink signaling.

[0158] In this embodiment, when the network device determines that a reader needs to be reselected, the network device sends an R2D message to the original reader to release the A-IoT link between the original reader and the corresponding A-IoT device. This allows the target reader to establish an A-IoT link with the corresponding A-IoT device, ensuring the normal implementation of A-IoT communication.

[0159] In a non-limiting embodiment, the reader can perform measurements via the Uu port with the network device, and simultaneously perform measurements via the A-IoT interface to obtain first information (or first and second information). The reader can then report the Uu port measurement results, along with the first information (or first and second information), to the network device.

[0160] Furthermore, the network device determines whether to reselect or switch readers based on the content reported by the reader.

[0161] For example, if a network device determines that it needs to perform a reader switch, it will perform the reader switch according to the existing procedure.

[0162] For more specific implementation details of this embodiment, please refer to the foregoing embodiments, which will not be repeated here.

[0163] Please refer to Figure 7 , Figure 7 A communication device 70 is shown, which may include:

[0164] The communication module 701 is used to receive first information, the first information representing the link status of at least one A-IoT link with at least one A-IoT device, and the first information is used to determine whether to reselect the reader.

[0165] Furthermore, the first information includes any of the following:

[0166] Channel measurement results of at least one A-IoT D2R signal, and at least one A-IoT link is used to transmit at least one A-IoT D2R signal;

[0167] The processing results of the channel measurement results.

[0168] Furthermore, the processing result includes at least one of the following:

[0169] The relationship between channel measurement results of at least one A-IoT D2R signal and the quality of a reference signal, where the quality of the reference signal is a fixed value;

[0170] The number of A-IoT links for which at least one A-IoT D2R signal channel measurement result is less than a first threshold;

[0171] The proportion of A-IoT links whose channel measurement results for at least one A-IoT D2R signal are less than a first threshold.

[0172] Furthermore, the communication module 701 is also used to report second information, which includes: the location information of at least one A-IoT device; and / or, the information of the A-IoT device corresponding to each location in the location information of at least one A-IoT device.

[0173] Furthermore, the communication module 701 is also used to receive measurement configuration information, which indicates that the measurement obtains first information, or the measurement configuration information indicates that the measurement obtains first information and second information.

[0174] Furthermore, the communication module 701 is also used to report the first information in response to the first information meeting the trigger condition, wherein the trigger condition indicates the link status requirements of the A-IoT link.

[0175] Furthermore, the communication module 701 is also used to receive downlink signaling, which indicates the release of at least one A-IoT link.

[0176] In specific implementations, the aforementioned communication device 70 may correspond to a chip with communication function in the reader, such as a SOC, baseband chip, etc.; or to a chip module in the reader that includes a chip with communication function; or to a chip module with a chip with data processing function; or to the reader itself.

[0177] In another non-limiting embodiment, the communication module 701 is configured to receive first information, the first information representing the link status of at least one A-IoT link with at least one A-IoT device, the first information being used to determine whether to reselect the reader.

[0178] Furthermore, the communication module 701 is also used to receive second information, the second information including: the location information of at least one A-IoT device; and / or, the information of the A-IoT device corresponding to each location in the location information of at least one A-IoT device.

[0179] Furthermore, the communication module 701 is also used to send measurement configuration information, which indicates that the measurement obtains first information, or the measurement configuration information indicates that the measurement obtains first information and second information.

[0180] Furthermore, the communication module 701 is also used to send downlink signaling, which indicates the release of at least one A-IoT link.

[0181] In specific implementations, the aforementioned communication device 70 may correspond to a chip with communication function in a network device, such as a system-on-a-chip (SOC), a baseband chip, etc.; or to a chip module in a network device that includes a chip with communication function; or to a chip module with a chip with data processing function; or to a network device.

[0182] Other relevant descriptions of the communication device 70 can be found in the descriptions in the foregoing embodiments, and will not be repeated here.

[0183] Regarding the modules / units included in the various devices and products described in the above embodiments, they can be software modules / units, hardware modules / units, or a combination of both. For example, for various devices and products applied to or integrated into a chip, all of their modules / units can be implemented using hardware methods such as circuits, or at least some modules / units can be implemented using software programs that run on a processor integrated within the chip, while the remaining (if any) modules / units can be implemented using hardware methods such as circuits; for various devices and products applied to or integrated into a chip module, all of their modules / units can be implemented using hardware methods such as circuits, and different modules / units can be located in the same component (e.g., chip, circuit module, etc.) or different components of the chip module, or at least some modules / units can be implemented using hardware methods such as circuits. The implementation is achieved through a software program that runs on the processor integrated within the chip module. The remaining modules / units (if any) can be implemented using hardware methods such as circuits. For various devices and products applied to or integrated into terminal equipment, each of their modules / units can be implemented using hardware methods such as circuits. Different modules / units can be located in the same component (e.g., chip, circuit module, etc.) or different components within the terminal equipment. Alternatively, at least some modules / units can be implemented through a software program that runs on the processor integrated within the terminal equipment, while the remaining modules / units (if any) can be implemented using hardware methods such as circuits.

[0184] This application also discloses a storage medium, which is a computer-readable storage medium storing a computer program thereon. When the computer program is executed, it can perform the steps of the method shown in the foregoing embodiments. The storage medium may include read-only memory (ROM), random access memory (RAM), a magnetic disk, or an optical disk, etc. The storage medium may also include non-volatile memory or non-transitory memory, etc.

[0185] Please refer to Figure 8 This application also provides a schematic diagram of the hardware structure of a communication device. The device includes a processor 801, a memory 802, and a transceiver 803.

[0186] Processor 801 can be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits used to control the execution of the program according to the present application. Processor 801 may also include multiple CPUs, and processor 801 can be a single-core processor or a multi-core processor. Here, processor can refer to one or more devices, circuits, or processing cores used to process data (e.g., computer program instructions).

[0187] The memory 802 can be a ROM or other type of static storage device capable of storing static information and instructions, RAM or other type of dynamic storage device capable of storing information and instructions, or it can be an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital universal optical discs, Blu-ray discs, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer. This application embodiment does not impose any limitations on this. The memory 802 can exist independently (in this case, the memory 802 can be located outside or inside the device) or it can be integrated with the processor 801. The memory 802 may contain computer program code. The processor 801 is used to execute the computer program code stored in the memory 802, thereby implementing the method provided in this application embodiment.

[0188] The processor 801, memory 802, and transceiver 803 are connected via a bus. The transceiver 803 is used to communicate with other devices or communication networks. Optionally, the transceiver 803 may include a transmitter and a receiver. The device in the transceiver 803 that implements the receiving function can be considered as a receiver, and the receiver is used to perform the receiving steps in the embodiments of this application. The device in the transceiver 803 that implements the transmitting function can be considered as a transmitter, and the transmitter is used to perform the transmitting steps in the embodiments of this application.

[0189] when Figure 8The schematic diagram shown illustrates the structure of the reader involved in the above embodiments. The processor 801 is used to control and manage the reader's actions. For example, the processor 801 supports the reader in performing actions in other processes described in the embodiments of this application. The processor 801 can communicate with other network entities via the transceiver 803, for example, with the aforementioned A-IoT device. The memory 802 is used to store the reader's program code and data.

[0190] when Figure 8 The schematic diagram shown illustrates the structure of the network device involved in the above embodiments. The processor 801 is used to control and manage the actions of the network device. For example, the processor 801 supports the network device in performing actions performed by the A-IoT device in other processes described in the embodiments of this application. The processor 801 can communicate with other network entities through the transceiver 803, for example, with the aforementioned reader. The memory 802 is used to store the program code and data of the network device.

[0191] It should be understood that the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article indicates that the preceding and following related objects have an "or" relationship.

[0192] In the embodiments of this application, "multiple" refers to two or more.

[0193] In this application, "equal to" can be used with "less than" or "greater than", but not simultaneously with both. When "equal to" is used with "less than", it applies to the technical solution adopted by "less than". When "equal to" is used with "greater than", it applies to the technical solution adopted by "greater than".

[0194] The descriptions of "first," "second," etc., appearing in the embodiments of this application are for illustrative purposes and to distinguish the objects being described. They have no order and do not indicate any special limitation on the number of devices in the embodiments of this application, nor do they constitute any limitation on the embodiments of this application.

[0195] In this application embodiment, "connection" refers to various connection methods such as direct connection or indirect connection to realize communication between devices. This application embodiment does not limit this in any way.

[0196] The above embodiments can be implemented, in whole or in part, by software, hardware, firmware, or any other combination thereof. When implemented using software, the above embodiments can be implemented, in whole or in part, as a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer program are loaded or executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means.

[0197] It should be understood that in the various embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0198] In the several embodiments provided in this application, it should be understood that the disclosed methods, apparatuses, and systems can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for example, the division of units is merely a logical functional division, and other division methods may exist in actual implementation; for example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0199] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0200] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can be physically included separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or in the form of hardware plus software functional units.

[0201] The integrated unit implemented as a software functional unit described above can be stored in a computer-readable storage medium. This software functional unit, stored in a storage medium, includes several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute some steps of the methods described in the various embodiments of this application.

[0202] While this application discloses the above information, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of this application; therefore, the scope of protection of this application shall be determined by the scope defined in the claims.

Claims

1. A communication method, characterized in that, include: Report first information, which represents the link status of at least one A-IoT link between the device and at least one environmental A-IoT device.

2. The communication method according to claim 1, characterized in that, The first information includes any one of the following: Channel measurement results of at least one A-IoT uplink signal, wherein the at least one A-IoT link is used to transmit the at least one A-IoT uplink signal; The processing results of the aforementioned channel measurement results.

3. The communication method according to claim 2, characterized in that, The at least one A-IoT uplink signal is an A-IoT reference signal, or the at least one A-IoT uplink signal is A-IoT uplink data.

4. The communication method according to claim 2, characterized in that, The processing result includes at least one of the following: The relationship between the channel measurement results of at least one A-IoT uplink signal and the reference signal quality, wherein the reference signal quality is a fixed value; The number of A-IoT links whose channel measurement results for at least one A-IoT uplink signal are less than a first threshold; The proportion of A-IoT links whose channel measurement results for at least one A-IoT uplink signal are less than the first threshold.

5. The communication method according to claim 1, characterized in that, Also includes: The second piece of information shall be reported, which includes: the location information of the at least one A-IoT device; And / or, the location information of the at least one A-IoT device, including the information of the A-IoT device corresponding to each location.

6. The communication method according to claim 5, characterized in that, The information of the A-IoT device includes at least one of the following: The number of A-IoT devices; Types of A-IoT devices; Remaining battery power of A-IoT devices.

7. The communication method according to claim 5, characterized in that, The location information of the at least one A-IoT device includes at least one of the following: Angle of arrival of the uplink signal transmitted by the at least one A-IoT device; The zenith angle of arrival of the uplink signal sent by the at least one A-IoT device; The departure angle of the downlink signal received by the at least one A-IoT device; The zenith angle of the downlink signal received by the at least one A-IoT device.

8. The communication method according to claim 1 or 5, characterized in that, Also includes: Receive measurement configuration information, wherein the measurement configuration information indicates that the measurement obtains the first information, or the measurement configuration information indicates that the measurement obtains the first information and the second information.

9. The communication method according to claim 1, characterized in that, The first piece of information to be reported includes: In response to the first information satisfying the triggering condition, the first information is reported, wherein the triggering condition indicates the link status requirements of the A-IoT link.

10. The communication method according to claim 9, characterized in that, The triggering condition includes at least one of the following: The number of A-IoT links whose channel measurement results are less than a first threshold in the first information is greater than or equal to a first value; The proportion of A-IoT links whose channel measurement results are less than the first threshold is greater than or equal to the second value; The change in the channel measurement result is greater than or equal to the second threshold.

11. The communication method according to claim 10, characterized in that, The change in the channel measurement result being greater than or equal to the second threshold includes: the offset of the channel measurement result relative to the reference signal quality being greater than or equal to the second threshold, or the offset of the channel measurement result relative to the reference signal quality within a first time period being greater than or equal to the second threshold.

12. The communication method according to any one of claims 1-11, characterized in that, Also includes: Receive downlink signaling, which instructs the release of at least one A-IoT link.

13. A communication method, characterized in that, include: Receive first information, the first information representing the link status of at least one A-IoT link with at least one A-IoT device, the first information being used to determine whether to reselect the reader.

14. The communication method according to claim 13, characterized in that, The first information includes any one of the following: Channel measurement results of at least one A-IoT uplink signal, wherein the at least one A-IoT link is used to transmit the at least one A-IoT uplink signal; The processing results of the aforementioned channel measurement results.

15. The communication method according to claim 14, characterized in that, The at least one A-IoT uplink signal is an A-IoT reference signal, or the at least one A-IoT uplink signal is A-IoT uplink data.

16. The communication method according to claim 14, characterized in that, The processing result includes at least one of the following: The relationship between the channel measurement results of at least one A-IoT uplink signal and the reference signal quality, wherein the reference signal quality is a fixed value; The number of A-IoT links whose channel measurement results for at least one A-IoT uplink signal are less than a first threshold; The proportion of A-IoT links whose channel measurement results for at least one A-IoT uplink signal are less than the first threshold.

17. The communication method according to claim 13, characterized in that, Also includes: Receive second information, the second information being used to reselect the reader, the second information including: Location information of at least one A-IoT device; And / or, The location information of the at least one A-IoT device includes the information of the A-IoT device corresponding to each location.

18. The communication method according to claim 13, characterized in that, Also includes: Send measurement configuration information, which instructs the measurement to obtain the first information, or the measurement configuration information instructs the measurement to obtain the first information and the second information.

19. The communication method according to claim 13, characterized in that, Also includes: Send downlink signaling, which instructs the release of at least one A-IoT link.

20. A communication device, characterized in that, include: A communication module is used to report first information, which represents the link status of at least one A-IoT link with at least one A-IoT device.

21. A communication device, characterized in that, include: A communication module is configured to receive first information, the first information representing the link status of at least one A-IoT link with at least one A-IoT device, and the first information is used to determine whether to reselect the reader.

22. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is run by the processor, it performs the steps of the communication method according to any one of claims 1 to 12, or performs the steps of the communication method according to any one of claims 13 to 19.

23. A computer program product comprising a computer program / instructions, characterized in that, When executed by a processor, the computer program / instruction implements the steps of the communication method according to any one of claims 1 to 12, or performs the steps of the communication method according to any one of claims 13 to 19.

24. A chip comprising at least one processing module and an interface circuit, the interface circuit being connected to the at least one processing module, wherein the processor executes the steps of the communication method according to any one of claims 1 to 12, or executes the steps of the communication method according to any one of claims 13 to 19, by running program instructions.

25. A communication device comprising a storage module and a processing module, wherein the storage module stores a computer program executable on the processor, characterized in that, When the processor runs the computer program, it performs the steps of the communication method according to any one of claims 1 to 12.

26. A communication device comprising a storage module and a processing module, wherein the storage module stores a computer program executable on the processor, characterized in that, When the processor runs the computer program, it performs the steps of the communication method according to any one of claims 13 to 19.

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