Read-write equipment selection method and device, communication equipment and readable storage medium

Abstract

The invention discloses a read-write device selection method and device, a communication device and a readable storage medium, and belongs to the field of communication counting, and the read-write device selection method comprises the steps that an Internet of Things device receives first configuration information sent by a first read-write device, the first configuration information comprises at least one of the following information: first information used for assisting the Internet of Things equipment in selecting the read-write equipment, and second information used for indicating the Internet of Things equipment to select a selection range of the read-write equipment; and the Internet of Things device selects at least one second read-write device based on the first configuration information.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to a method and apparatus for selecting a read / write device, a communication device, and a readable storage medium. Background Art

[0002] Currently, the coverage of Radio Frequency Identification (RFID) is limited, and it is difficult to support large-scale cellular network deployment and seamless coverage. In order to provide large-scale cellular network deployment and seamless coverage, the 3rd Generation Partnership Project (3GPP) is studying the Ambient Internet of Things (Ambient IoT) technology. In this Ambient IoT technology, the scale of cellular network deployment and seamless coverage can be expanded through communication between a large number of IoT devices and their respective read-write devices (for example, base stations, readers or repeaters, etc.).

[0003] However, in the above-mentioned Ambient IoT technology, how the IoT device selects a read / write device to communicate with the IoT device to achieve reliable communication performance and business performance is a problem to be solved. Summary of the invention

[0004] The embodiments of the present application provide a read / write device selection method, apparatus, communication device, and readable storage medium, which can solve the problem of how an IoT device selects a read / write device to communicate with the IoT device to achieve reliable communication performance and business performance.

[0005] In a first aspect, a method for selecting a read-write device is provided, the method comprising: an Internet of Things device receives first configuration information sent by a first read-write device, the first configuration information comprising at least one of the following: first information for assisting the Internet of Things device in selecting a read-write device, and second information for indicating a selection range for the Internet of Things device to select a read-write device; the Internet of Things device selects at least one second read-write device based on the first configuration information.

[0006] In a second aspect, a method for selecting a read-write device is provided, the method comprising: a first read-write device sends first configuration information to an Internet of Things device; wherein the first configuration information comprises at least one of the following: first information for assisting the Internet of Things device in selecting a read-write device, and second information for indicating a selection range for the Internet of Things device to select a read-write device.

[0007] In a third aspect, a read-write device selection device is provided, which includes a receiving module and a selection module; the receiving module is used to receive first configuration information sent by a first read-write device, the first configuration information includes at least one of the following: first information used to assist an Internet of Things device in selecting a read-write device, and second information used to indicate a selection range for the Internet of Things device to select a read-write device; the selection module is used to select at least one second read-write device based on the first configuration information received by the receiving module.

[0008] In a fourth aspect, a read-write device selection device is provided, which includes a sending module; the sending module is used to send first configuration information to an Internet of Things device; wherein the first configuration information includes at least one of the following: first information used to assist the Internet of Things device in selecting a read-write device, and second information used to indicate the selection range of the Internet of Things device to select a read-write device.

[0009] In a fifth aspect, a communication device is provided, which includes a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

[0010] In a sixth aspect, a communication device is provided, comprising a processor and a communication interface, wherein the communication interface is used to receive first configuration information sent by a first read-write device, and the first configuration information includes at least one of the following: first information for assisting the communication device in selecting a read-write device, and second information for indicating the communication device to select a selection range of the read-write device; the processor is used to select at least one second read-write device based on the first configuration information. Alternatively, the communication interface is used to send the first configuration information to an Internet of Things device; wherein the first configuration information includes at least one of the following: first information for assisting the Internet of Things device in selecting a read-write device, and second information for indicating the Internet of Things device to select a selection range of the read-write device.

[0011] In the seventh aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

[0012] In an eighth aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the method described in the first aspect, or to implement the method described in the second aspect.

[0013] In the ninth aspect, a computer program / program product is provided, wherein the computer program / program product is stored in a storage medium, and the program / program product is executed by at least one processor to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0014] In an embodiment of the present application, the IoT device can receive first configuration information sent by a first read-write device, and the first configuration information includes at least one of the following: first information for assisting the IoT device in selecting a read-write device, and second information for indicating the selection range of the IoT device to select a read-write device; and at least one second read-write device can be selected based on the first configuration information. Through this solution, when selecting a read-write device, the IoT device can select a more suitable read-write device based on the configuration information sent by the first read-write device for assisting the IoT device in selecting a read-write device, or for indicating the selection range of the IoT device to select a read-write device, so that the IoT device can select a more suitable read-write device to achieve better communication performance and service performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a block diagram of a wireless communication system to which the embodiments of the present application can be applied;

[0016] Figure 2 is a link schematic diagram of backscatter transmission in the related art;

[0017] Figure 3 It is a schematic diagram of the principle of modulating signals of a backscatter communication device in the related art;

[0018] Figure 4 It is one of the schematic diagrams of the network topology used for communication between Ambient IoT devices in the related art;

[0019] Figure 5 This is the second schematic diagram of the network topology used for communication between Ambient IoT devices in the related technology;

[0020] Figure 6 This is the third schematic diagram of the network topology used for communication between Ambient IoT devices in the related technology;

[0021] Figure 7 This is the fourth schematic diagram of the network topology used for communication between Ambient IoT devices in the related technology;

[0022] Figure 8 This is the fifth schematic diagram of the network topology used for communication between Ambient IoT devices in the related art;

[0023] Fig. 9This is one of the schematic diagrams of the core network participating in the communication of Ambient IoT devices in the related technology;

[0024] Fig.10 This is the second schematic diagram of the core network participating in the communication of Ambient IoT devices in the related technology;

[0025] Fig.11 is a flow chart of a method for selecting a read-write device provided in an embodiment of the present application;

[0026] Fig.12 is a flow chart of another method for selecting a read / write device provided in an embodiment of the present application;

[0027] Fig.13 It is a structural schematic diagram of a reading and writing device selection device provided in an embodiment of the present application;

[0028] Fig.14 is a structural schematic diagram of another reading and writing device selection device provided in an embodiment of the present application;

[0029] Fig.15 is a schematic diagram of a communication device provided in an embodiment of the present application;

[0030] Fig.16 It is a schematic diagram of the hardware structure when the communication device provided in the embodiment of the present application is a terminal;

[0031] Fig.17 It is a schematic diagram of the hardware structure when the communication device provided in the embodiment of the present application is a network side device. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0033] The terms "first", "second", etc. of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of one type, and the number of objects is not limited, for example, the first object can be one or more. In addition, "or" in the present application represents at least one of the connected objects. For example, "A or B" covers three schemes, namely, Scheme 1: including A but not including B; Scheme 2: including B but not including A; Scheme 3: including both A and B. The character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0034] The term "indication" in this application can be a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, operations to be performed, or request results in the sent indication; an indirect indication can be understood as the receiver determining the corresponding information according to the indication sent by the sender, or making a judgment and determining the operation to be performed or the request result according to the judgment result.

[0035] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the systems and radio technologies mentioned above as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following descriptions, but these technologies can also be applied to systems other than NR systems, such as the 6th generation (6 th Generation, 6G) communication system.

[0036] Figure 1A block diagram of a wireless communication system applicable to an embodiment of the present application is shown. The wireless communication system includes a terminal 11 and a network side device 12. Among them, the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (Ultra-mobile Personal Computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), an augmented reality (Augmented Reality, AR), a virtual reality (Virtual Reality, VR) device, a robot, a wearable device (Wearable Device), an aircraft (flight vehicle), a vehicle-mounted device (Vehicle User Equipment, VUE), a ship-mounted device, a pedestrian terminal (Pedestrian User Equipment, PUE), a smart home (home appliances with wireless communication functions, such as refrigerators, televisions, washing machines or furniture, etc.), a game console, a personal computer (Personal Computer, PC), a teller machine or a self-service machine and other terminal side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may include an access network device or a core network device, wherein the access network device may also be referred to as a radio access network (Radio Access Network, RAN) device, a radio access network function or a radio access network unit. The access network device may include a base station, a wireless local area network (Wireless Local Area Network, WLAN) access point (Access Point, AS) or a wireless fidelity (Wireless Fidelity, WiFi) node, etc.Among them, the base station may be referred to as a Node B (NB), an evolved Node B (eNB), a next generation Node B (gNB), a New Radio Node B (NR Node B), an access point, a Relay Base Station (RBS), a Serving Base Station (SBS), a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a Home Node B (HNB), a Home Evolved Node B, a Transmission Reception Point (TRP) or other appropriate terms in the field. As long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiments of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0037] The following, in conjunction with the accompanying drawings, describes in detail the read / write device selection method, apparatus, communication device, and readable storage medium provided in the embodiments of the present application through some embodiments and their application scenarios.

[0038] Currently, RFID has limited coverage and it is difficult to support large-scale cellular network deployment and seamless coverage. In order to provide large-scale cellular network deployment and seamless coverage, 3GPP Release-18 is studying Ambient IoT technology, in which the scale of cellular network deployment and seamless coverage can be expanded through communication between a large number of IoT devices and their respective reading and writing devices (for example, base stations, readers or repeaters, etc.).

[0039] The above-mentioned IoT device is a device with low overall power consumption, which can receive signals and send signals with low power consumption; since the overall power consumption of the IoT device is low, the energy in the communication process can come from the environment, such as wind energy, kinetic energy, thermal energy or radio frequency RF signals, etc., the IoT device can also be called Ambient IoT device, passive IoT device (i.e. passive IoT device) or answering device.

[0040] The IoT device can be a device that transmits signals through the radio frequency RF signal, and such devices can also be called electronic tags or radio frequency tags. The IoT device can also be some active tags with active signal generation capabilities, but in order to achieve low power consumption of the device, it is usually lower than 0dBm, for example, less than or equal to -10dBm. The signal reception of the IoT device is also low-power reception, and generally adopts low-power radio frequency, intermediate frequency or baseband envelope detection to receive the signal. The waveform of the transmitted signal usually also adopts a simple modulation method, such as binary on-off keying (OOK) modulation, amplitude shift keying (ASK) modulation or frequency shift keying (FSK) modulation and other simple modulation methods.

[0041] The above Ambient IoT devices can be classified as follows:

[0042] 1. Device Type A: Passive device, which has no energy storage, no independent signal generation or amplification capabilities, and only transmits signals through backscattered RF signals;

[0043] 2. Device Type B: Semi-Passive device, which has energy storage but no independent signal generation capability. It can use the stored energy to amplify the backscattered signal.

[0044] 3. Device type C: Active device. This type of device has energy storage, signal generation capability, and supports active signal transmission.

[0045] For example, Figure 2 A schematic diagram of a backscatter transmission link is shown, such as Figure 2 As shown, there are two transmission links, namely, the transmission link from the reader 21 to the tag 22 (i.e., the above-mentioned Ambient IoT device), and the transmission link from the tag 22 to the reader 21. When the tag 22 needs to send "1", the incident carrier signal can be reflected; when the tag 22 needs to send "0", no signal reflection is performed.

[0046] Figure 3 The schematic diagram of the principle of modulating the signal of the backscatter communication device is shown in FIG. Figure 3 As shown, the tag can control the reflection coefficient Γ of the circuit by adjusting its internal impedance, thereby changing the incident signal S in (t) amplitude, frequency, phase, etc., to achieve signal modulation. The reflection coefficient of the signal can be expressed as the following formula (1):

[0047]

[0048] Where Z0 is the antenna characteristic impedance and Z1 is the load impedance. Assume the incident signal is S in (t), the output signal is Therefore, corresponding amplitude modulation, frequency modulation or phase modulation can be achieved by properly controlling the reflection coefficient Γ.

[0049] The device that communicates with the IoT device is called a read / write device, which can be a terminal, a base station or a device with read / write functions (e.g., a reader / writer), and the specifics are not limited here. The terminal is also called user equipment (UE), mobile station (MS) or mobile terminal (MT), etc., which refers to a device that provides at least one of voice and data connectivity to users.

[0050] Currently, UE or RAN can act as a reader to transmit Ambient IoT data to an Ambient IoT device; the network topology used by the Ambient IoT device for communication can be any of the following:

[0051] 1. Direct connection of base station; Figure 4 As shown, the Ambient IoT device 42 directly communicates bidirectionally with the base station 41; the communication between the base station 41 and the Ambient IoT device 42 includes at least one of Ambient IoT data and signaling; the network topology includes the possibility that the base station sending to the Ambient IoT device is different from the base station receiving from the Ambient IoT device.

[0052] 2. Indirect connection of base station; Figure 5 As shown, the Ambient IoT device 52 performs bidirectional communication with an intermediate node device 53 (located between the Ambient IoT device 52 and the base station 51); in the network topology, the intermediate node device 53 can be a relay, an integrated access backhaul (IAB) node, a UE or a repeater, etc., which can realize the environmental Internet of Things.

[0053] 3. Connection with intermediate node devices; e.g. Figure 6 and Figure 7As shown, the Ambient IoT device sends data / signaling to the base station and receives data / signaling from the intermediate node device; or the Ambient IoT device receives data / signaling from the base station and sends the data / signaling to the intermediate node device; in this network topology, the intermediate node device can be a relay, an IAB node, a UE or a repeater, etc., which can realize the environmental Internet of Things.

[0054] 4. UE direct connection; such as Figure 8 As shown, the Ambient IoT device 82 performs bidirectional communication with the UE 81 ; the communication between the UE 81 and the Ambient IoT device 82 includes at least one of Ambient IoT data and signaling.

[0055] Among them, the relay provides relay services between the base station and the ambient device, and is responsible for forwarding wireless signals. The relay node can not only be used to expand the cell coverage and fill the cell coverage blind spots, but also improve the cell capacity through spatial resource reuse.

[0056] A repeater can be called a transponder, which can be used to expand the coverage of a cell, including receiving, amplifying and forwarding downlink signals from an upstream base station to increase the signal strength reaching the ambient device; or receiving, amplifying and forwarding uplink signals from an ambient device to increase the strength of the uplink signal from the UE to the upstream base station.

[0057] In addition, the core network can also participate in the communication of the above-mentioned Ambient IoT devices; for example, Fig. 9 and Fig.10 As shown, the core network 5GC participates in the communication of Ambient IoT devices.

[0058] During the communication process, the UE can maintain a Public Land Mobile Network (PLMN) list in order of priority, and select a PLMN from the PLMN list automatically or manually, and select a cell belonging to the PLMN. The UE searches for and resides in a suitable cell only if the following conditions are met:

[0059] 1. The cell belongs to the PLMN selected by the UE or the registered PLMN, the peer PLNN;

[0060] 2. Satisfy the cell selection criteria, including reselection to a higher priority radio access technology (RAT) or frequency, or reselection to a stronger cell;

[0061] 3. The community is not barred;

[0062] 4. The cell does not belong to a tracking area where roaming is prohibited.

[0063] The cell selection criterion may be a cell selection criterion (also referred to as an S criterion), specifically:

[0064] The cell selection criterion S is fulfilled when:

[0065] Srxlev>0AND Squal>0

[0066] where:

[0067] Srxlev=Qrxlevmeas–(Qrxlevmin+Qrxlevminoffset)–Pcompensation-Qoffsettemp

[0068] Squal=Qqualmeas–(Qqualmin+Qqualminoffset)–Qoffsettemp.

[0069] The UE may perform measurements to support cell reselection, and if a more suitable cell is found, the UE performs cell reselection.

[0070] Nowadays, in the deployment of cellular networks, it is necessary to solve the problem of selecting reading and writing devices for Ambient IoT devices, including at least one of the following:

[0071] 1. Ambient IoT devices need to be within the communication range of the reader / writer;

[0072] 2. Ambient IoT devices can select multiple read-write devices and participate in the inventory of multiple read-write devices to improve the reliability of inventory;

[0073] 3. The Ambient IoT device selects a more appropriate read / write device and only participates in the inventory of one read / write device to reduce the inventory load;

[0074] 4. The read / write device can control the Ambient IoT device to select at least one specific read / write device for load balancing.

[0075] In order to solve the above problems, the embodiments of the present application provide a read-write device selection method, apparatus, communication device and readable storage medium. The read-write device selection method provided by the embodiments of the present application can be applied to the scenario in which an Ambient IoT device selects a read-write device that communicates with the Ambient IoT device.

[0076] In the method for selecting a read / write device provided in an embodiment of the present application, the Ambient IoT device can receive first configuration information sent by a first read / write device, and the first configuration information includes at least one of the following: first information for assisting the Ambient IoT device in selecting a read / write device, and second information for indicating the Ambient IoT device to select a selection range of a read / write device; and at least one second read / write device can be selected based on the first configuration information. Through this solution, when selecting a read / write device, the Ambient IoT device can select a more suitable read / write device based on the configuration information sent by the first read / write device for assisting the Ambient IoT device in selecting a read / write device, or for indicating the Ambient IoT device to select a selection range of a read / write device, so that the Ambient IoT device can select a more suitable read / write device to achieve better communication performance and business performance.

[0077] The present application embodiment provides a method for selecting a read-write device. Fig.11 FIG. 1 is a flowchart of a method for selecting a read / write device provided in an embodiment of the present application. Fig.11 As shown, the method for selecting a read / write device provided in an embodiment of the present application may include the following steps 101 and 102.

[0078] Step 101: The Internet of Things device receives first configuration information sent by a first read-write device.

[0079] Among them, the above-mentioned first configuration information includes at least one of the following: first information used to assist the above-mentioned Internet of Things device in selecting a read-write device, and second information used to indicate the selection range of the above-mentioned Internet of Things device to select a read-write device.

[0080] Optionally, in an embodiment of the present application, the above-mentioned Internet of Things device may be an Ambient IoT device.

[0081] Optionally, in an embodiment of the present application, the above selection range may correspond to at least one read-write device to be selected.

[0082] Optionally, in the embodiment of the present application, the above selection may also be referred to as registration.

[0083] Optionally, in an embodiment of the present application, the first read-write device may include one or more read-write devices.

[0084] Optionally, in an embodiment of the present application, if the first read-write device includes the plurality of read-write devices, the first configuration information may include: a piece of configuration information sent by each of the plurality of read-write devices.

[0085] Optionally, in an embodiment of the present application, the first configuration information may be carried by at least one of the following: a system message, a paging message, and a downlink message sent to the IoT device.

[0086] Optionally, in an embodiment of the present application, the downlink message sent to the above-mentioned Internet of Things device may be: a message for selecting, querying or taking inventory of at least one Internet of Things device.

[0087] In the embodiment of the present application, since the above-mentioned first configuration information can be carried by at least one of a system message, a paging message and a downlink message sent to the above-mentioned Internet of Things device, the flexibility of transmitting the first configuration information can be improved.

[0088] Step 102: The IoT device selects at least one second read-write device based on the first configuration information.

[0089] Optionally, in an embodiment of the present application, the first read-write device or the second read-write device may include at least one of the following: a network side device, a UE, a reader, an auxiliary node device, and an intermediate node device.

[0090] Optionally, in the embodiment of the present application, the device type of the first read-write device and the device type of the second read-write device may be the same or different.

[0091] Optionally, in an embodiment of the present application, the auxiliary node device or the relay node device may include any one of the following: a relay device (ie, a relay), an IAB node device, a UE, and a repeater (ie, a repeater).

[0092] The above-mentioned repeater can be used to expand the coverage of the cell, which may include receiving, amplifying and forwarding downlink signals from the upstream base station, so that the signal strength reaching the IoT device is increased; or it may include receiving, amplifying and forwarding uplink signals from the IoT device, so that the strength of the uplink signal from the UE to the upstream base station is increased;

[0093] The above relays can provide relay services between base stations and IoT devices and are responsible for forwarding wireless signals. Relay nodes can not only be used to expand cell coverage and fill in cell coverage blind spots, but also increase cell capacity through spatial resource reuse.

[0094] Optionally, in an embodiment of the present application, the above-mentioned network side equipment may include: a base station, a core network element or a cell device, etc.

[0095] Optionally, in an embodiment of the present application, the selected at least one second read-write device may be: a read-write device selected to communicate with the above-mentioned Internet of Things device.

[0096] In an embodiment of the present application, since the above-mentioned first read-write device or the above-mentioned second read-write device may include at least one of a network side device, a UE, a reader, an auxiliary node device, and an intermediate node device, the Internet of Things device can receive configuration information sent by read-write devices of different device types and select read-write devices of different device types, thereby improving the flexibility of the Internet of Things device in selecting read-write devices.

[0097] Optionally, in the embodiment of the present application, the above step 101 can be specifically implemented by the following step 101a.

[0098] Step 101a: The IoT device receives first configuration information sent by one or more first read-write devices.

[0099] Among them, at least some of the at least one second read-write device satisfy any of the following conditions:

[0100] A read / write device among the one or more first read / write devices;

[0101] It is not a read / write device among the one or more first read / write devices.

[0102] In the embodiment of the present application, the at least part of the second read-write devices mentioned above include: part or all of the second read-write devices in the at least one second read-write device mentioned above.

[0103] Optionally, in an embodiment of the present application, at least some of the second read-write devices may be selected from the one or more first read-write devices, or at least some of the second read-write devices may not be selected from the one or more first read-write devices.

[0104] In the embodiment of the present application, since at least some of the second read-write devices may or may not be the read-write devices in the one or more first read-write devices, the flexibility of the IoT device in selecting the read-write device can be further improved.

[0105] Optionally, in an embodiment of the present application, based on different information included in the first configuration information, the IoT device may select the at least one second read-write device through one of the following possible implementations or another possible implementation.

[0106] A possible implementation

[0107] Optionally, in the embodiment of the present application, the first configuration information includes the first information, and the first information includes at least one of the following 1.1 to 1.13:

[0108] 1.1. Device information of the first reading and writing device mentioned above;

[0109] 1.2. Information about the network topology type used by the first read-write device;

[0110] 1.3. Information on the network topology types supported by the first read-write device;

[0111] 1.4. Information about the types of devices that the first read-write device is allowed to access;

[0112] 1.5. Information about the types of devices that the first read / write device is prohibited from accessing;

[0113] 1.6. Signal strength information of the first reading / writing device;

[0114] 1.7. Device information of the auxiliary node device associated with the first read-write device;

[0115] 1.8. Device information of the intermediate node device associated with the first read-write device;

[0116] 1.9. The area information of the network area where the first reading and writing device is located;

[0117] 1.10. First indication information, the first indication information is used to indicate whether the IoT device is allowed to select at least two read-write devices;

[0118] 1.11. Second indication information, the second indication information is used to indicate whether the IoT device selects a read-write device;

[0119] 1.12. Third indication information, the third indication information is used to instruct the above-mentioned Internet of Things device to reselect a read-write device;

[0120] 1.13. Cycle information, which is used to indicate the cycle of the IoT device selecting the read / write device.

[0121] Optionally, in an embodiment of the present application, the above-mentioned device information may be a device ID of the above-mentioned first reading and writing device.

[0122] Optionally, in the embodiment of the present application, the signal strength information may include at least one of the following:

[0123] Transmit power information;

[0124] receiving sensitivity information;

[0125] Required minimum signal strength information;

[0126] Signal strength threshold information, which is used to allow access to IoT devices;

[0127] The loss of backscatter from the IoT devices mentioned above.

[0128] Optionally, in an embodiment of the present application, the above-mentioned transmission power information is used to indicate the downlink transmission power of the read-write device; the above-mentioned Internet of Things device can calculate the communication range of the read-write device based on the transmission power of the read-write device, including whether the uplink transmission can be received by the read-write device.

[0129] Optionally, in an embodiment of the present application, the above-mentioned receiving sensitivity information is used to indicate the receiving sensitivity of the reading and writing device; for example, when the strength of the signal sent by the above-mentioned Internet of Things device received by the reading and writing device is greater than or equal to the receiving sensitivity, the signal sent by the Internet of Things device can be successfully received by the reading and writing device.

[0130] Optionally, in an embodiment of the present application, when the signal strength of the read-write device received by the above-mentioned Internet of Things device is higher than the threshold indicated by the above-mentioned signal strength threshold information, the Internet of Things device is allowed to access the read-write device.

[0131] Optionally, in the embodiment of the present application, the first indication information or the second indication information may specifically be at least one of the following:

[0132] Response command indication information, used to indicate whether the IoT device responds to the command sent by the first read-write device;

[0133] Inventory mode indication information, used to instruct the IoT device to participate in repeated inventory or only participate in the inventory of a single read-write device;

[0134] Multicast or broadcast mode indication information, used to instruct the IoT device to respond only to the selected read / write device;

[0135] The unicast mode indication information is used to indicate that the above-mentioned Internet of Things device has not selected the first read-write device and also responds to the first read-write device.

[0136] In an embodiment of the present application, since the above-mentioned signal strength information may include at least one of the above-mentioned transmission power information, the above-mentioned receiving sensitivity information, the above-mentioned minimum signal strength information, the above-mentioned signal strength threshold information and the loss of backscattering of the above-mentioned Internet of Things device, it is possible to select the above-mentioned at least one second read-write device based on the different signal strength information of the above-mentioned first read-write devices, thereby further improving the flexibility of selecting the read-write device.

[0137] It should be noted that if the first information includes at least one of 1.2 to 1.5, the coverage of the read / write device can be determined for different network topology types, or the IoT device can be enabled to preferentially select a suitable network topology type.

[0138] Optionally, in an embodiment of the present application, the above-mentioned area information may include at least one of the following: cell identification (Identity document, ID), cell group, routing notification area (Routing notification area, RNA), tracking area (Tracking Area, TA), public land mobile network (Public Land Mobile Network, PLMN), UE ID, etc.

[0139] Optionally, in an embodiment of the present application, if the first indication information indicates that the IoT device is allowed to select at least two read-write devices, the IoT device can participate in the inventory of the at least two read-write devices to improve the reliability of the inventory.

[0140] Optionally, in an embodiment of the present application, if the second indication information instructs the IoT device to select a read-write device, the IoT device may only participate in the inventory of the one read-write device to reduce the inventory load.

[0141] Optionally, in an embodiment of the present application, if the above-mentioned first information includes the above-mentioned third indication information, the above-mentioned Internet of Things device is required to reselect a read-write device or register to the network regardless of whether it has selected a read-write device on the network or registered with the network.

[0142] Optionally, in an embodiment of the present application, the above-mentioned periodic information may include a selection period, a registration period, or the need to select a read / write device again or register to the network after every N inventory counts, where N is a positive integer.

[0143] In the embodiment of the present application, since the above-mentioned first information can include at least one of the above-mentioned 1.1 to 1.13, the Internet of Things device can select the above-mentioned at least one second read-write device according to different first information, thereby further improving the flexibility of the Internet of Things device in selecting the read-write device.

[0144] Optionally, in the embodiment of the present application, the above step 102 can be specifically implemented by the following step 102a.

[0145] Step 102a: The IoT device selects a first read-write device that satisfies a first rule as at least one second read-write device according to the first information.

[0146] The first rule includes at least one of the following:

[0147] First choice criteria;

[0148] The device types that the first read-write device allows to access include the device types of the above-mentioned IoT devices;

[0149] The device types prohibited from access by the first reading and writing device do not include the device types of the above-mentioned IoT devices;

[0150] The network topology type used by the first reading and writing device is the network topology type supported or preferred by the above-mentioned IoT device;

[0151] The network topology type supported by the first read-write device is the network topology type supported or preferred by the above-mentioned Internet of Things device.

[0152] Optionally, in the embodiment of the present application, the above-mentioned device type may include at least one of the following:

[0153] Device Type A: Passive devices, which have no energy storage, no independent signal generation or amplification capabilities, and only transmit signals through backscattered RF signals;

[0154] Device Type B: Semi-passive devices, which have energy storage but no independent signal generation capability, can use the stored energy to amplify the backscattered signal;

[0155] Device Type C: Active device, this type of device has energy storage, signal generation capability, and supports active signal transmission.

[0156] It should be noted that the first rule, including that the device type of the above-mentioned IoT device is the device type allowed to access by the read-write device, or the device type of the above-mentioned IoT device is not the device type prohibited from access by the read-write device, can facilitate the uniform deployment of IoT devices in the network and avoid congestion of read-write devices.

[0157] Optionally, in an embodiment of the present application, the network topology type may include at least one of the following: a base station direct connection type, a base station indirect connection type, a connection type with an auxiliary node, and a UE direct connection type.

[0158] For the specific description of the above network topology types, reference can be made to the above-mentioned description of the network topology structure in the related technology. In order to avoid repetition, it will not be repeated here.

[0159] In an embodiment of the present application, since the Internet of Things device can select a first read-write device that satisfies the first rule as the at least one second read-write device based on the above-mentioned first information, different read-write devices can be selected according to different first rules, thereby further improving the flexibility of the Internet of Things device in selecting read-write devices.

[0160] Optionally, in the embodiment of the present application, the first selection criterion may include at least one of the following 2.1 to 2.5:

[0161] 2.1. The target device is within the uplink coverage of the above IoT device;

[0162] 2.2. The target device is within the backscatter coverage of the above IoT device;

[0163] 2.3. The above IoT devices are within the downlink coverage of the target device;

[0164] 2.4. The signal strength of the target device received by the IoT device is greater than or equal to the first signal strength threshold;

[0165] 2.5. The target device meets the cell selection criteria;

[0166] The target device includes at least one of the following: a read-write device, an auxiliary node device within the communication range of the read-write device, and an intermediate node device within the communication range of the read-write device.

[0167] Optionally, in the embodiment of the present application, if the first selection criterion includes 2.1 above, it is possible to determine whether the target device is within the uplink coverage of the IoT device by using at least one of the following methods 1 and 2:

[0168] Method 1: Pmaxtxpower–(Preader_txpower-Qrxlevmeas)>Qtarget_power;

[0169] Method 2: min{Pmaxtxpower, (Qrxlevmeas–Qbsc_offset)}–(Preader_txpower-Qrxlevmeas)-Qtarget_power>0;

[0170] Among them, Pmaxtxpower is the maximum transmission power, maximum RF output power level or maximum output power that can be configured of the above-mentioned IoT device; Qrxlevmeas is the signal strength of the read / write device measured by the IoT device; Qtarget_power is the receiving sensitivity of the read / write device or the minimum target receiving power (ie, Target power); Preader_txpower is the downlink transmission power of the read / write device.

[0171] Optionally, in an embodiment of the present application, the above-mentioned method 1 is applicable to the above-mentioned active device for judgment; the above-mentioned method 2 is applicable to the active device, the above-mentioned passive device or the above-mentioned semi-passive device for judgment. For the passive device and the semi-passive device, if the value obtained by subtracting the backscatter loss from the received signal strength is higher than the maximum transmission power, the above-mentioned Internet of Things device transmits at the maximum transmission power.

[0172] Optionally, in the embodiment of the present application, if the first selection criterion includes the above 2.2, the following method 3 may be used to determine whether the target device is within the backscatter coverage of the IoT device:

[0173] Method 3: Qrxlevmeas–Qbsc_offset–(Preader_txpower-Qrxlevmeas)>Qtarget_power, or 2xQrxlevmeas–Qbsc_offset–Qtarget_power–Preader_txpower>0; that is, the backscatter signal strength QreflectPower-path loss PathLoss>the minimum target receiving power of the reading and writing device;

[0174] Among them, Qrxlevmeas is the signal strength of the reading and writing device measured by the above-mentioned IoT device; Qtarget_power is the receiving sensitivity of the reading and writing device or the minimum target receiving power (i.e., Target power); Preader_txpower is the downlink transmission power of the reading and writing device; Qbsc_offset is the backscattering loss of the IoT device, and the backscattering signal strength QreflectPower = Qrxlevmeas-Qbsc_offset. If the IoT device has energy to amplify the signal, the loss can be a negative value, which can be preset by the network configuration or the IoT device; path loss PathLoss = Preader_txpower-Qrxlevmeas.

[0175] Optionally, in an embodiment of the present application, the above method three is applicable to the above passive device or the above semi-passive device for judgment.

[0176] Optionally, in the embodiment of the present application, if the first selection criterion includes the above 2.3, it is possible to determine whether the IoT device is within the downlink coverage of the target device by using at least one of the following methods 4 and 5:

[0177] Method 4: Qrxlevmeas–Qrxlevmin–Qoffset>0;

[0178] Method 5: Qrxlevmeas–Qrxlevmin>0;

[0179] Among them, Qrxlevmeas is the signal strength of the read / write device measured by the IoT device; Qrxlevmin is the minimum required signal strength of the read / write device; Qoffset is the offset value of the strength calculation, including compensation values ​​corresponding to different IoT device types, and the default offset value is 0. Method 5 is convenient for quick calculation

[0180] Optionally, in an embodiment of the present application, the first signal strength threshold is a signal strength threshold of a reading and writing device.

[0181] Optionally, in the embodiment of the present application, the cell selection criterion is satisfied, that is, one of the following is satisfied: Srxlev>0 and Squal>0; or Srxlev>0; or Squal>0; specifically, an implementation method is as follows:

[0182] Srxlev=Qrxlevmeas–(Qrxlevmin+Qrxlevminoffset)–Pcompensation-Qoffsettemp

[0183] Squal=Qqualmeas–(Qqualmin+Qqualminoffset)–Qoffsettemp.

[0184] in,

[0185] Qrxlevmeas is the signal strength (RSRP) of the reading and writing device measured by the IoT device;

[0186] Qqualmeas is the read / write device quality value (RSRQ) measured by the IoT device;

[0187] Qrxlevmin is the minimum required signal strength in the read / write device;

[0188] Qqualmin is the minimum required signal quality level;

[0189] Qrxlevminoffset is the offset value relative to the minimum required signal strength (Qrxlevmin);

[0190] Qqualminoffset is the offset value relative to the minimum required quality level (Qqualmin);

[0191] Pcompensation is a compensation value based on the transmission capability of the IoT device. Pcompensation is the difference between the maximum transmission level that the IoT device may use and its power level. In one embodiment, the semi-passive device (device type B) has the ability to amplify radio frequency signals and can additionally increase the backscatter power. The network configures the Pcompensation value for the semi-passive device.

[0192] Qoffsettemp is the offset value temporarily applied to the read / write device.

[0193] In an embodiment of the present application, since the above-mentioned first selection criterion can include at least one of the above-mentioned 2.1 to 2.5, the Internet of Things device can select the above-mentioned at least one second read-write device according to different first selection criteria, thereby further improving the flexibility of the Internet of Things device in selecting the read-write device.

[0194] Optionally, in the embodiment of the present application, the first rule may further include at least one of the following 3.1 and 3.2:

[0195] 3.1. Prioritize the reading and writing devices whose signal strength is greater than or equal to the second signal strength threshold;

[0196] 3.2. Give priority to reading and writing devices that use or support the network topology types preferred by the above IoT devices.

[0197] Optionally, in the embodiment of the present application, the above-mentioned signal strength may be an average signal strength within a preset time period.

[0198] Optionally, in an embodiment of the present application, the above-mentioned signal strength may be the signal strength of a signal transmitted by a reading / writing device, such as the above-mentioned Qrxlevmeas.

[0199] Optionally, in an embodiment of the present application, the preset duration or the second signal strength threshold may be preconfigured, predefined, or agreed upon by a protocol.

[0200] In the embodiment of the present application, since the above-mentioned first rule can also include at least one of the above-mentioned 3.1 and 3.2, a specific read-write device can be preferentially selected based on the first rule to facilitate the system to control the inventory process and avoid repeated inventory or inventory omissions.

[0201] Optionally, in the embodiment of the present application, the at least one second read-write device selected according to the first information may include at least one of the following 4.1 to 4.4:

[0202] 4.1. At least two read-write devices selected according to the first indication information;

[0203] 4.2. A read / write device selected according to the second indication information;

[0204] 4.3. The read / write device is reselected according to the third indication information;

[0205] 4.4. The read / write device is selected according to the cycle indicated by the above cycle information.

[0206] Optionally, in the embodiment of the present application, the read-write device related to the first read-write device may be: the read-write device included in the first read-write device.

[0207] In the embodiment of the present application, since the at least one second read-write device may include at least one of 4.1 to 4.4, the IoT device can select different read-write devices according to the first information, thereby further improving the flexibility of the IoT device in selecting a read-write device.

[0208] Another possible implementation

[0209] Optionally, in the embodiment of the present application, the first configuration information includes the second information, and the second information may include at least one of the following 5.1 to 5.3:

[0210] 5.1. Regional information of the second network area;

[0211] 5.2. Device information of at least two selectable target read / write devices;

[0212] 5.3. Device information of a selectable target read / write device.

[0213] Optionally, in an embodiment of the present application, the second network area may be a cell group, RNA, TA or PLMN, etc.

[0214] Optionally, in an embodiment of the present application, the above-mentioned device information may be a read-write device identifier, including a cell identifier, a base station identifier or a UE identifier, etc.

[0215] In the embodiment of the present application, since the second information may include at least one of 5.1 to 5.3, the IoT device may select a specific read / write device according to different second information, thereby improving the accuracy of selecting the read / write device.

[0216] Optionally, in the embodiment of the present application, the above step 102 can be specifically implemented by the following step 102b.

[0217] Step 102b: The IoT device selects at least one second read-write device according to the selection range indicated by the second information.

[0218] Optionally, in the embodiment of the present application, the at least one second read-write device selected according to the second information may include at least one of the following 6.1 to 6.3:

[0219] 6.1. Read-write devices in the second network area;

[0220] 6.2. One or more read-write devices among the at least two selectable target read-write devices;

[0221] 6.3. One of the target read / write devices can be selected as above.

[0222] In the embodiment of the present application, the at least two target read-write devices are the read-write devices indicated by the device information of the at least two target read-write devices, and the one target read-write device is the read-write device indicated by the device information of the one target read-write device.

[0223] In the embodiment of the present application, since the at least one second read-write device may include at least one of 6.1 to 6.3, the IoT device may select different specific devices, thereby further improving the flexibility of selecting the read-write device.

[0224] In the embodiment of the present application, since the IoT device can select the at least one second read-write device according to the selection range indicated by the second information, the flexibility of selecting the read-write device can be further improved.

[0225] In the read-write device selection method provided in the embodiment of the present application, since the Internet of Things device can select a read-write device based on the configuration information sent by the first read-write device to assist the Internet of Things device in selecting a read-write device, or to instruct the Internet of Things device to select a selection range of a read-write device, the Internet of Things device can select a more suitable read-write device to achieve better communication performance and business performance.

[0226] Optionally, in an embodiment of the present application, in the above-mentioned possible implementation manner, after the above-mentioned step 102a, the method for selecting a read / write device provided in the embodiment of the present application may further include the following step A.

[0227] Step A: The IoT device reports read / write device selection information (also referred to as registration information) to at least one second read / write device.

[0228] Optionally, in the embodiment of the present application, the above-mentioned read / write device selection information may include at least one of the following 7.1 to 7.4:

[0229] 7.1. Device information of the at least one second read-write device;

[0230] 7.2. Area information of the network area where the at least one second read-write device is located;

[0231] 7.3. Third information, which is used to indicate that the IoT device has reselected a read / write device or has changed its registration;

[0232] 7.4. Fourth information, the fourth information is used to indicate the read-write device historically selected by the above-mentioned IoT device.

[0233] Optionally, in an embodiment of the present application, the historically selected read-write device may be the read-write device last selected by the IoT device.

[0234] It should be noted that the fourth information can help the network track the IoT device to resolve inventory errors or omissions and update the available information (ie, Availability info) of the IoT device.

[0235] In the embodiment of the present application, since the above-mentioned read-write device selection information can include at least one of the above-mentioned 7.1 to 7.4, the flexibility of the above-mentioned Internet of Things device feedback selection results can be improved.

[0236] Optionally, in an embodiment of the present application, after the IoT device reports the read-write device selection information to the at least one second read-write device, registration, inventory, positioning, data transmission and other processes may be performed on the at least one second read-write device.

[0237] In an embodiment of the present application, since the above-mentioned Internet of Things device can report the read-write device selection information to the at least one second read-write device after selecting the above-mentioned at least one second read-write device, the network can obtain the selection result of the Internet of Things device in a timely manner, which is convenient for subsequent inventory processes.

[0238] Optionally, in an embodiment of the present application, after the above step A, the read-write device selection method provided in the embodiment of the present application may further include the following steps B and C.

[0239] Step B: The IoT device receives the second configuration information.

[0240] The second configuration information includes at least one of the following:

[0241] Area information of the first network area;

[0242] Device information of at least two read-write devices;

[0243] Device information for a read-write device.

[0244] Optionally, in an embodiment of the present application, the second configuration information may be carried by at least one of the following: a system message, a paging message, and a downlink message sent to the Internet of Things device.

[0245] Step C: The Internet of Things device selects a third read-write device for communicating with the Internet of Things device based on the second configuration information.

[0246] Optionally, in the embodiment of the present application, the third reading and writing device may include at least one of the following:

[0247] The read / write devices in the first network area;

[0248] One or more of the at least two read-write devices;

[0249] A read-write device as described above.

[0250] For other descriptions in the embodiments of the present application, please refer to the relevant descriptions in the above embodiments. In order to avoid repetition, they will not be repeated here.

[0251] Optionally, in an embodiment of the present application, in the above another possible implementation, the above first configuration information may include the above first information and the above second information. Exemplarily, the method for selecting a read / write device provided in an embodiment of the present application may further include the following step D.

[0252] Step D: When the IoT device fails to successfully select a read / write device according to the selection range indicated by the second information, the IoT device selects the first read / write device that meets the first rule as the fourth read / write device that communicates with the IoT device according to the first information.

[0253] Optionally, in the embodiment of the present application, the fourth reading and writing device may include at least one of the following:

[0254] At least two read-write devices selected according to the first indication information;

[0255] A read / write device selected according to the second indication information;

[0256] A read / write device reselected according to the third indication information;

[0257] The read / write device is selected according to the cycle indicated by the above cycle information.

[0258] Exemplarily, assuming that the second information instructs the IoT device to select read-write device 1, if the IoT device fails to successfully select read-write device 1, the IoT device can select read-write device 2 (i.e., the fourth read-write device) based on the first information (already received or re-received).

[0259] For other descriptions in the embodiments of the present application, please refer to the relevant descriptions in the above embodiments. In order to avoid repetition, they will not be repeated here.

[0260] This embodiment of the application provides another method for selecting a read / write device. Fig.12 FIG. 1 is a flowchart of a method for selecting a read / write device provided in an embodiment of the present application. Fig.12 As shown, the method for selecting a read / write device provided in an embodiment of the present application may include the following step 201.

[0261] Step 201: A first read-write device sends first configuration information to an Internet of Things device.

[0262] Among them, the above-mentioned first configuration information includes at least one of the following: first information used to assist the above-mentioned Internet of Things device in selecting a read-write device, and second information used to indicate the selection range of the above-mentioned Internet of Things device to select a read-write device.

[0263] Optionally, in an embodiment of the present application, the above-mentioned first reading and writing device may include at least one of the following: a network side device, a UE, a reader, an auxiliary node device, and an intermediate node device.

[0264] Optionally, in the embodiment of the present application, the first information may include at least one of the following:

[0265] Device information of the first read-write device;

[0266] Information about the network topology type used by the first read-write device;

[0267] Information about the network topology types supported by the first read-write device;

[0268] Information about the types of devices that the first read-write device is allowed to access;

[0269] Information about the types of devices that the first read-write device is prohibited from accessing;

[0270] Signal strength information of the first reading / writing device;

[0271] Device information of the auxiliary node device associated with the first read-write device;

[0272] Device information of an intermediate node device associated with the first read-write device;

[0273] The area information of the network area where the first read-write device is located;

[0274] First indication information, where the first indication information is used to indicate whether the IoT device is allowed to select at least two read-write devices;

[0275] Second indication information, the second indication information is used to indicate whether the IoT device selects a read-write device;

[0276] Third indication information, the third indication information is used to instruct the above-mentioned Internet of Things device to reselect a read-write device;

[0277] Cycle information, which is used to indicate the cycle of the IoT device selecting the read / write device.

[0278] Optionally, in the embodiment of the present application, the second information may include at least one of the following:

[0279] Area information of the second network area;

[0280] Device information of at least two selectable target read / write devices;

[0281] Optionally, device information for a target read / write device.

[0282] In the read-write device selection method provided in the embodiment of the present application, since the first read-write device can send configuration information to the Internet of Things device to assist the Internet of Things device in selecting a read-write device, or to instruct the Internet of Things device to select a selection range of read-write devices, so that the Internet of Things device can select a read-write device for communication, the Internet of Things device can select a more suitable read-write device to achieve better communication performance and business performance.

[0283] Optionally, in an embodiment of the present application, the first configuration information includes the first information; illustratively, after the above step 201, the read-write device selection method provided in the embodiment of the present application may further include the following step 202.

[0284] Step 202: The first read-write device receives the read-write device selection information reported by the IoT device.

[0285] Optionally, in the embodiment of the present application, the above-mentioned read / write device selection information may include at least one of the following:

[0286] Device information of at least one second read-write device selected by the IoT device;

[0287] Area information of a network area where at least one second read-write device selected by the IoT device is located;

[0288] The third information is used to indicate that the IoT device has reselected a read / write device or has changed its registration;

[0289] The fourth information is used to indicate the reading and writing device historically selected by the above-mentioned Internet of Things device.

[0290] Optionally, in the embodiment of the present application, after the above step 202, the read / write device selection method provided in the embodiment of the present application may further include the following step 203.

[0291] Step 203: The first read-write device sends second configuration information to the Internet of Things device.

[0292] The second configuration information includes at least one of the following:

[0293] Area information of the first network area;

[0294] Device information of at least two read-write devices;

[0295] Device information for a read-write device.

[0296] Optionally, in the embodiment of the present application, after the above step 203, the read / write device selection method provided in the embodiment of the present application may further include the following step 204.

[0297] Step 204: The first read / write device performs a first operation according to the read / write device selection information.

[0298] In the embodiment of the present application, the first operation includes at least one of the following:

[0299] Sending read / write device selection information to the first object;

[0300] Store read-write device selection information;

[0301] Update the read and write device history selection information of IoT devices;

[0302] The first object includes at least one of the following:

[0303] Core network;

[0304] The Internet of Things device selects the second object most recently selected by the read / write device according to the first configuration information, and the second object includes at least one of the following: a cell, a base station, and a UE.

[0305] It should be noted that the above-mentioned first operation can help the network track the above-mentioned IoT device, so that the network can subsequently efficiently inventory or locate the IoT device.

[0306] In the embodiment of the present application, since the first read-write device can perform the first operation according to the read-write device selection information after receiving the read-write device selection information, it is convenient for the network to track the Internet of Things device.

[0307] For other descriptions in the embodiments of the present application and the technical effects that can be achieved by each technical feature, reference can be made to the relevant descriptions in the above-mentioned channel estimation method embodiment. In order to avoid repetition, they will not be repeated here.

[0308] The read / write device selection method provided in the embodiment of the present application can be executed by a read / write device selection apparatus. In the embodiment of the present application, the read / write device selection apparatus performing the read / write device selection method is taken as an example to illustrate the read / write device selection apparatus provided in the embodiment of the present application.

[0309] Combination Fig.13 An embodiment of the present application provides a read / write device selection device 130 , which may include a receiving module 131 and a selection module 132 .

[0310] The receiving module 131 may be used to receive first configuration information sent by a first read-write device, the first configuration information including at least one of the following: first information for assisting the read-write device selection device 130 in selecting a read-write device, and second information for indicating a selection range of a read-write device to the read-write device selection device 130. The selection module 132 may be used to select at least one second read-write device based on the first configuration information received by the receiving module 131.

[0311] In a possible implementation, the first read-write device or the second read-write device may include at least one of the following: a network side device, a UE, a reader, an auxiliary node device, and an intermediate node device.

[0312] In a possible implementation, the first configuration information may be carried by at least one of the following: a system message, a paging message, and a downlink message sent to the read / write device selection apparatus 130 .

[0313] In a possible implementation, the receiving module 131 can be specifically used to receive the above-mentioned first configuration information sent by one or more first read-write devices; wherein, at least some of the above-mentioned at least one second read-write device meet any of the following items: being a read-write device among the one or more first read-write devices; not being a read-write device among the one or more first read-write devices.

[0314] In a possible implementation, the first information may include at least one of the following: device information of the first read-write device; information about the type of network topology used by the first read-write device; information about the type of network topology supported by the first read-write device; information about the type of device allowed to be accessed by the first read-write device; information about the type of device prohibited to be accessed by the first read-write device; signal strength information of the first read-write device; device information of the auxiliary node device associated with the first read-write device; device information of the intermediate node device associated with the first read-write device; area information of the network area where the first read-write device is located; first indication information, the first indication information is used to indicate whether the read-write device selection device 130 is allowed to select at least two read-write devices; second indication information, the second indication information is used to indicate whether the read-write device selection device 130 selects a read-write device; third indication information, the third indication information is used to indicate the read-write device selection device 130 to reselect a read-write device; cycle information, the cycle information is used to indicate the cycle of the read-write device selection device 130 selecting a read-write device.

[0315] In a possible implementation, the selection module 132 may be specifically configured to select a first read-write device that satisfies a first rule as the at least one second read-write device according to the first information. The first rule includes at least one of the following: a first selection criterion; the device types that the first read-write device allows to access include the device types of the read-write device selection device 130; the device types that the first read-write device prohibits from accessing do not include the device types of the read-write device selection device 130; the network topology type used by the first read-write device is the network topology type supported or preferred by the read-write device selection device 130; the network topology type supported by the first read-write device is the network topology type supported or preferred by the read-write device selection device 130.

[0316] In a possible implementation, the first selection criterion may include at least one of the following: the target device is within the uplink coverage of the read / write device selection device 130; the target device is within the backscatter coverage of the read / write device selection device 130; the read / write device selection device 130 is within the downlink coverage of the target device; the signal strength of the target device received by the read / write device selection device 130 is greater than or equal to the first signal strength threshold; the target device meets the cell selection criterion. The target device includes at least one of the following: a read / write device, an auxiliary node device within the communication range of the read / write device, and an intermediate node device within the communication range of the read / write device.

[0317] In one possible implementation, the signal strength information may include at least one of the following: transmission power information; receiving sensitivity information; required minimum signal strength information; signal strength threshold information, which is used to allow access to the read-write device selection device 130; and backscatter loss of the read-write device selection device 130.

[0318] In one possible implementation, the at least one second read-write device may include at least one of the following: at least two read-write devices selected according to the first indication information; one read-write device selected according to the second indication information; a read-write device reselected according to the third indication information; a read-write device selected according to the period indicated by the period information.

[0319] In a possible implementation, the first rule may further include at least one of the following: giving priority to reading and writing devices having a signal strength greater than or equal to a second signal strength threshold; giving priority to reading and writing devices that use or support the network topology type preferred by the reading and writing device selection device 130 .

[0320] In a possible implementation, the at least one second read-write device selected may be: a read-write device selected to communicate with the Internet of Things device.

[0321] In a possible implementation, the read-write device selection device 130 may further include a reporting module. The reporting module may be used to report read-write device selection information to the at least one second read-write device after the selection module 132 selects the first read-write device that meets the first rule as the at least one second read-write device according to the first information; the read-write device selection information may include at least one of the following: device information of the at least one second read-write device; area information of the network area where the at least one second read-write device is located; third information, the third information is used to indicate that the read-write device selection device 130 has reselected the read-write device or has changed the registration; fourth information, the fourth information is used to indicate the read-write device selected by the read-write device selection device 130 in history.

[0322] In a possible implementation, the receiving module 131 may also be used to receive the second configuration information after the reporting module reports the read-write device selection information to the at least one second read-write device. The selecting module 132 may also be used to select a third read-write device that communicates with the read-write device selecting device 130 based on the second configuration information received by the receiving module 131. The second configuration information includes at least one of the following: area information of the first network area; device information of at least two read-write devices; device information of one read-write device.

[0323] In a possible implementation, the third read-write device may include at least one of the following: a read-write device in the first network area; one or more read-write devices among the at least two read-write devices; or the one read-write device.

[0324] In a possible implementation, the second configuration information may be carried by at least one of the following: a system message, a paging message, and a downlink message sent to the reader / writer device selection apparatus 130 .

[0325] In a possible implementation, the second information may include at least one of the following: area information of the second network area; device information of at least two selectable target read-write devices; and device information of one selectable target read-write device.

[0326] In a possible implementation, the selection module 132 may be specifically configured to select the at least one second read-write device according to the selection range indicated by the second information.

[0327] In a possible implementation, the at least one second read-write device may include at least one of the following: a read-write device in the first network area; one or more read-write devices among the at least two selectable target read-write devices; or the selectable target read-write device.

[0328] In a possible implementation, the first configuration information includes the first information and the second information. The selection module 132 may also be configured to select, according to the first information, a first read-write device that satisfies the first rule as a fourth read-write device that communicates with the read-write device selection device 130 when the read-write device selection range indicated by the second information fails to be successfully selected. Among them, the first information may include at least one of the following: device information of the above-mentioned first read-write device; information on the network topology type used by the above-mentioned first read-write device; information on the network topology types supported by the above-mentioned first read-write device; information on the device types allowed to be accessed by the above-mentioned first read-write device; information on the device types prohibited from being accessed by the above-mentioned first read-write device; signal strength information of the above-mentioned first read-write device; device information of the auxiliary node device associated with the above-mentioned first read-write device; device information of the intermediate node device associated with the above-mentioned first read-write device; area information of the network area where the above-mentioned first read-write device is located; first indication information, the first indication information is used to indicate whether the above-mentioned read-write device selection device 130 is allowed to select at least two read-write devices; second indication information, the second indication information is used to indicate whether the above-mentioned read-write device selection device 130 selects a read-write device; third indication information, the third indication information is used to instruct the above-mentioned read-write device selection device 130 to reselect a read-write device; cycle information, the cycle information is used to indicate the cycle of the above-mentioned read-write device selection device 130 selecting a read-write device. The first rule includes at least one of the following: a first selection criterion; the device types allowed to be accessed by the first read-write device include the device types of the above-mentioned read-write device selection device 130; the device types prohibited from accessing by the first read-write device do not include the device types of the above-mentioned read-write device selection device 130; the network topology type used by the first read-write device is the network topology type supported or preferred by the above-mentioned read-write device selection device 130; the network topology type supported by the first read-write device is the network topology type supported or preferred by the above-mentioned read-write device selection device 130.

[0329] In one possible implementation, the fourth read-write device may include at least one of the following: at least two read-write devices selected according to the first indication information; one read-write device selected according to the second indication information; a read-write device reselected according to the third indication information; a read-write device selected according to the period indicated by the period information.

[0330] In the read-write device selection device provided in the embodiment of the present application, since the read-write device selection device can select a read-write device based on the configuration information sent by the first read-write device to assist the read-write device selection device in selecting a read-write device, or to instruct the read-write device selection device to select a selection range of a read-write device, the read-write device selection device can select a more suitable read-write device to achieve better communication performance and business performance.

[0331] The read / write device selection device in the embodiment of the present application can be an electronic device, such as an electronic device with an operating system, or a component in the electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal, or it can be other devices other than a terminal. Exemplarily, the terminal can include but is not limited to the types of the terminal 11 listed above, and other devices can be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.

[0332] The read / write device selection device provided in the embodiment of the present application can implement each process implemented by the above-mentioned IoT device side method embodiment and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0333] Combination Fig.14 , an embodiment of the present application provides another read-write device selection device 140 , and the read-write device selection device 140 may include a sending module 141 .

[0334] Among them, the sending module 141 can be used to send first configuration information to the Internet of Things device; wherein the first configuration information includes at least one of the following: first information used to assist the Internet of Things device in selecting a read-write device, and second information used to indicate the selection range of the Internet of Things device to select a read-write device.

[0335] In a possible implementation, the above-mentioned read / write device selection device 140 may include at least one of the following: a network side device, a UE, a reader, an auxiliary node device, and an intermediate node device.

[0336] In a possible implementation, the first information may include at least one of the following: device information of the read-write device selection device 140; information on the type of network topology used by the read-write device selection device 140; information on the type of network topology supported by the read-write device selection device 140; information on the type of device allowed to access by the read-write device selection device 140; information on the type of device prohibited to access by the read-write device selection device 140; signal strength information of the read-write device selection device 140; device information of the auxiliary node device associated with the read-write device selection device 140; device information of the intermediate node device associated with the read-write device selection device 140; area information of the network area where the read-write device selection device 140 is located; first indication information, the first indication information is used to indicate whether the Internet of Things device is allowed to select at least two read-write devices; second indication information, the second indication information is used to indicate whether the Internet of Things device selects a read-write device; third indication information, the third indication information is used to instruct the Internet of Things device to reselect a read-write device; and cycle information, the cycle information is used to indicate the cycle for the Internet of Things device to select a read-write device.

[0337] In one possible implementation, the signal strength information may include at least one of the following: transmission power information; receiving sensitivity information; required minimum signal strength information; signal strength threshold information, which is used to allow access to the IoT device; and the loss of backscattering of the IoT device.

[0338] In a possible implementation, the first configuration information includes the first information, and the read / write device selection device 140 may further include a receiving module. The receiving module may be used to receive the read / write device selection information reported by the IoT device after the sending module 141 sends the first configuration information to the IoT device; wherein the read / write device selection information may include at least one of the following: device information of at least one second read / write device selected by the IoT device; area information of the network area where the at least one second read / write device selected by the IoT device is located; third information, the third information is used to indicate that the IoT device has reselected the read / write device or has changed the registration; fourth information, the fourth information is used to indicate the read / write device selected historically by the IoT device.

[0339] In a possible implementation, the sending module 141 may also be used to send second configuration information to the IoT device after the receiving module receives the read / write device selection information reported by the IoT device. The second configuration information may include at least one of the following: area information of the first network area; device information of at least two read / write devices; device information of one read / write device.

[0340] In a possible implementation, the read / write device selection device 140 may include a processing module. The processing module may be used to perform a first operation according to the read / write device selection information after the receiving module receives the read / write device selection information reported by the IoT device, and the first operation includes at least one of the following: sending the read / write device selection information to a first object; storing the read / write device selection information; updating the read / write device selection history information of the IoT device; wherein the first object includes at least one of the following: a core network; the IoT device selects the second object that was most recently selected before the read / write device was selected according to the first configuration information, and the second object includes at least one of the following: a cell, a base station, or a UE.

[0341] In a possible implementation, the second information may include at least one of the following: area information of the second network area; device information of at least two selectable target read-write devices; and device information of one selectable target read-write device.

[0342] In the read-write device selection device provided in the embodiment of the present application, since the read-write device selection device can send configuration information to the Internet of Things device to assist the Internet of Things device in selecting a read-write device, or to instruct the Internet of Things device to select a selection range of read-write devices, so that the Internet of Things device can select a read-write device for communication, the Internet of Things device can select a more suitable read-write device to achieve better communication performance and business performance.

[0343] The read / write device selection device in the embodiment of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal, or can be other devices other than a terminal. Exemplarily, the terminal can include but is not limited to the types of the terminal 11 listed above, and other devices can be servers, NAS, etc., which are not specifically limited in the embodiment of the present application.

[0344] The read / write device selection apparatus provided in the embodiment of the present application can implement each process implemented by the first read / write device side method embodiment described above and achieve the same technical effect. To avoid repetition, it will not be described here.

[0345] like Fig.15As shown, the embodiment of the present application also provides a communication device 100, including a processor 101 and a memory 102, and the memory 102 stores a program or instruction that can be run on the processor 101. For example, when the communication device 100 is an Internet of Things device, the program or instruction is executed by the processor 101 to implement the various steps of the above-mentioned Internet of Things device side method embodiment, and can achieve the same technical effect. When the communication device 100 is a read-write device, the program or instruction is executed by the processor 101 to implement the various steps of the above-mentioned first read-write device side method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0346] An embodiment of the present application also provides a communication device, including a processor and a communication interface.

[0347] Among them, the above-mentioned communication interface is used to receive first configuration information sent by a first read-write device, and the first configuration information includes at least one of the following: first information used to assist the above-mentioned communication device in selecting a read-write device, and second information used to indicate the selection range of the above-mentioned communication device to select a read-write device; the above-mentioned processor is used to select at least one second read-write device based on the first configuration information.

[0348] Alternatively, the above-mentioned communication interface is used to send first configuration information to the Internet of Things device; wherein the first configuration information includes at least one of the following: first information used to assist the Internet of Things device in selecting a read-write device, and second information used to indicate the selection range of the Internet of Things device to select a read-write device.

[0349] The above communication device embodiment corresponds to the above read / write device selection method embodiment. Each implementation process and implementation method of the read / write device selection method embodiment can be applied to the communication device embodiment and can achieve the same technical effect. Specifically, the communication device can be a terminal or a network side device. Taking the communication device as a terminal as an example, Fig.16 FIG. 4 is a schematic diagram of the hardware structure of the terminal.

[0350] The terminal 1000 includes but is not limited to: a radio frequency unit 1001, a network module 1002, an audio output unit 1003, an input unit 1004, a sensor 1005, a display unit 1006, a user input unit 1007, an interface unit 1008, a memory 1009 and at least some of the components of a processor 1010.

[0351] Those skilled in the art will appreciate that the terminal 1000 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 1010 through a power management system, thereby implementing functions such as managing charging, discharging, and power consumption management through the power management system. Fig.16The terminal structure shown in the figure does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be described in detail here.

[0352] It should be understood that in the embodiment of the present application, the input unit 1004 may include a graphics processing unit (GPU) 10041 and a microphone 10042, and the graphics processor 10041 processes the image data of the static picture or video obtained by the image capture device (such as a camera) in the video capture mode or the image capture mode. The display unit 1006 may include a display panel 10061, and the display panel 10061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 1007 includes a touch panel 10071 and at least one of other input devices 10072. The touch panel 10071 is also called a touch screen. The touch panel 10071 may include two parts: a touch detection device and a touch controller. Other input devices 10072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0353] In the embodiment of the present application, after receiving downlink data from the network side device, the RF unit 1001 can transmit the data to the processor 1010 for processing; in addition, the RF unit 1001 can send uplink data to the network side device. Generally, the RF unit 1001 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0354] The memory 1009 can be used to store software programs or instructions and various data. The memory 1009 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 1009 may include a volatile memory or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM) and a direct memory bus random access memory (DRRAM). The memory 1009 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0355] The processor 1010 may include one or more processing units; optionally, the processor 1010 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 1010.

[0356] The RF unit 1001 may be used to receive first configuration information sent by a first read / write device, where the first configuration information includes at least one of the following: first information for assisting the terminal 1000 in selecting a read / write device, and second information for indicating a selection range for the terminal 1000 to select a read / write device. The processor 1010 may be used to select at least one second read / write device based on the first configuration information received by the RF unit 1001.

[0357] In a possible implementation, the first read-write device or the second read-write device may include at least one of the following: a network side device, a UE, a reader, an auxiliary node device, and an intermediate node device.

[0358] In a possible implementation manner, the first configuration information may be carried by at least one of the following: a system message, a paging message, and a downlink message sent to the terminal 1000 .

[0359] In a possible implementation, the radio frequency unit 1001 can be specifically used to receive the above-mentioned first configuration information sent by one or more first read-write devices; wherein, at least some of the second read-write devices in the above-mentioned at least one second read-write device meet any of the following items: being a read-write device in the one or more first read-write devices; not being a read-write device in the one or more first read-write devices.

[0360] In a possible implementation, the first information may include at least one of the following: device information of the first read-write device; information on the type of network topology used by the first read-write device; information on the types of network topology supported by the first read-write device; information on the types of devices allowed to be accessed by the first read-write device; information on the types of devices prohibited from being accessed by the first read-write device; signal strength information of the first read-write device; device information of auxiliary node devices associated with the first read-write device; device information of intermediate node devices associated with the first read-write device; area information of the network area where the first read-write device is located; first indication information, the first indication information is used to indicate whether the terminal 1000 is allowed to select at least two read-write devices; second indication information, the second indication information is used to indicate whether the terminal 1000 selects a read-write device; third indication information, the third indication information is used to instruct the terminal 1000 to reselect a read-write device; and cycle information, the cycle information is used to indicate the cycle of the terminal 1000 selecting a read-write device.

[0361] In a possible implementation, the processor 1010 may be specifically configured to select, according to the first information, a first read / write device that satisfies a first rule as the at least one second read / write device. The first rule includes at least one of the following: a first selection criterion; the device type that the first read / write device allows to access includes the device type of the terminal 1000; the device type that the first read / write device prohibits from accessing does not include the device type of the terminal 1000; the network topology type used by the first read / write device is the network topology type supported or preferred by the terminal 1000; the network topology type supported by the first read / write device is the network topology type supported or preferred by the terminal 1000.

[0362] In a possible implementation, the first selection criterion may include at least one of the following: the target device is within the uplink coverage of the terminal 1000; the target device is within the backscatter coverage of the terminal 1000; the terminal 1000 is within the downlink coverage of the target device; the signal strength of the target device received by the terminal 1000 is greater than or equal to the first signal strength threshold; the target device meets the cell selection criterion. The target device includes at least one of the following: a read-write device, an auxiliary node device within the communication range of the read-write device, and an intermediate node device within the communication range of the read-write device.

[0363] In one possible implementation, the signal strength information may include at least one of the following: transmit power information; receive sensitivity information; required minimum signal strength information; signal strength threshold information, the signal strength threshold information being used to allow access to terminal 1000; and loss of backscattering of terminal 1000.

[0364] In one possible implementation, the at least one second read-write device may include at least one of the following: at least two read-write devices selected according to the first indication information; one read-write device selected according to the second indication information; a read-write device reselected according to the third indication information; a read-write device selected according to the period indicated by the period information.

[0365] In a possible implementation, the first rule may also include at least one of the following: giving priority to reading and writing devices having a signal strength greater than or equal to a second signal strength threshold; giving priority to reading and writing devices that use or support the network topology type preferred by the terminal 1000.

[0366] In a possible implementation, the at least one second read-write device selected may be: a read-write device selected to communicate with the Internet of Things device.

[0367] In a possible implementation, the processor 1010 may also be used to report read-write device selection information to the at least one second read-write device after selecting a first read-write device that satisfies the first rule as the at least one second read-write device according to the first information; the read-write device selection information may include at least one of the following: device information of the at least one second read-write device; area information of the network area where the at least one second read-write device is located; third information, the third information is used to indicate that the terminal 1000 has reselected the read-write device or has changed the registration; fourth information, the fourth information is used to indicate the read-write device historically selected by the terminal 1000.

[0368] In a possible implementation, the radio frequency unit 1001 may also be used to receive second configuration information after the reporting module reports the read-write device selection information to the at least one second read-write device. The processor 1010 may also be used to select a third read-write device for communicating with the terminal 1000 based on the second configuration information received by the radio frequency unit 1001. The second configuration information includes at least one of the following: area information of the first network area; device information of at least two read-write devices; device information of one read-write device.

[0369] In a possible implementation, the third read-write device may include at least one of the following: a read-write device in the first network area; one or more read-write devices among the at least two read-write devices; or the one read-write device.

[0370] In a possible implementation manner, the second configuration information may be carried by at least one of the following: a system message, a paging message, and a downlink message sent to the terminal 1000 .

[0371] In a possible implementation, the second information may include at least one of the following: area information of the second network area; device information of at least two selectable target read-write devices; and device information of one selectable target read-write device.

[0372] In a possible implementation, the processor 1010 may be specifically configured to select the at least one second read-write device according to a selection range indicated by the second information.

[0373] In a possible implementation, the at least one second read-write device may include at least one of the following: a read-write device in the first network area; one or more read-write devices among the at least two selectable target read-write devices; or the selectable target read-write device.

[0374] In a possible implementation, the first configuration information includes the first information and the second information. The processor 1010 may also be configured to select, according to the first information, a first read / write device that satisfies the first rule as a fourth read / write device for communicating with the terminal 1000 when a read / write device cannot be successfully selected according to the selection range indicated by the second information. Among them, the first information may include at least one of the following: device information of the above-mentioned first read-write device; information on the network topology type used by the above-mentioned first read-write device; information on the network topology types supported by the above-mentioned first read-write device; information on the device types allowed to access by the above-mentioned first read-write device; information on the device types prohibited from access by the above-mentioned first read-write device; signal strength information of the above-mentioned first read-write device; device information of the auxiliary node device associated with the above-mentioned first read-write device; device information of the intermediate node device associated with the above-mentioned first read-write device; area information of the network area where the above-mentioned first read-write device is located; first indication information, the first indication information is used to indicate whether the above-mentioned terminal 1000 is allowed to select at least two read-write devices; second indication information, the second indication information is used to indicate whether the above-mentioned terminal 1000 selects a read-write device; third indication information, the third indication information is used to instruct the above-mentioned terminal 1000 to reselect a read-write device; cycle information, the cycle information is used to indicate the cycle of the above-mentioned terminal 1000 selecting a read-write device. The first rule includes at least one of the following: a first selection criterion; the device types allowed to be accessed by the first read-write device include the device types of the above-mentioned terminal 1000; the device types prohibited from accessing by the first read-write device do not include the device types of the above-mentioned terminal 1000; the network topology type used by the first read-write device is the network topology type supported or preferred by the above-mentioned terminal 1000; the network topology type supported by the first read-write device is the network topology type supported or preferred by the above-mentioned terminal 1000.

[0375] In one possible implementation, the fourth read-write device may include at least one of the following: at least two read-write devices selected according to the first indication information; one read-write device selected according to the second indication information; a read-write device reselected according to the third indication information; a read-write device selected according to the period indicated by the period information.

[0376] In the terminal provided in the embodiment of the present application, since the terminal can select a read-write device based on the configuration information sent by the first read-write device to assist the terminal in selecting a read-write device or to instruct the terminal to select a range of read-write devices, the terminal can select a more suitable read-write device to achieve better communication performance and business performance.

[0377] or,

[0378] Among them, the radio frequency unit 1001 can be used to send first configuration information to the Internet of Things device; wherein the first configuration information includes at least one of the following: first information used to assist the Internet of Things device in selecting a read-write device, and second information used to indicate the selection range of the Internet of Things device to select a read-write device.

[0379] In a possible implementation, the terminal 1000 may include at least one of the following: a UE, a reader, an auxiliary node device, and an intermediate node device.

[0380] In a possible implementation, the first information may include at least one of the following: device information of the terminal 1000; information on the type of network topology used by the terminal 1000; information on the type of network topology supported by the terminal 1000; information on the type of device allowed to be accessed by the terminal 1000; information on the type of device prohibited from accessing by the terminal 1000; signal strength information of the terminal 1000; device information of the auxiliary node device associated with the terminal 1000; device information of the intermediate node device associated with the terminal 1000; area information of the network area where the terminal 1000 is located; first indication information, the first indication information is used to indicate whether the Internet of Things device is allowed to select at least two read-write devices; second indication information, the second indication information is used to indicate whether the Internet of Things device selects a read-write device; third indication information, the third indication information is used to instruct the Internet of Things device to reselect a read-write device; and cycle information, the cycle information is used to indicate the cycle for the Internet of Things device to select a read-write device.

[0381] In one possible implementation, the signal strength information may include at least one of the following: transmission power information; receiving sensitivity information; required minimum signal strength information; signal strength threshold information, which is used to allow access to the IoT device; and the loss of backscattering of the IoT device.

[0382] In a possible implementation, the first configuration information includes the first information. The radio frequency unit 1001 may also be used to receive the read / write device selection information reported by the IoT device after sending the first configuration information to the IoT device; wherein the read / write device selection information may include at least one of the following: device information of at least one second read / write device selected by the IoT device; area information of the network area where the at least one second read / write device selected by the IoT device is located; third information, the third information is used to indicate that the IoT device has reselected the read / write device or has changed the registration; fourth information, the fourth information is used to indicate the read / write device selected historically by the IoT device.

[0383] In a possible implementation, the radio frequency unit 1001 may also be used to send second configuration information to the IoT device after receiving the read / write device selection information reported by the IoT device. The second configuration information may include at least one of the following: area information of the first network area; device information of at least two read / write devices; device information of one read / write device.

[0384] In one possible implementation, the processor 1010 may be used to perform a first operation according to the read-write device selection information after the radio frequency unit 1001 receives the read-write device selection information reported by the IoT device, and the first operation includes at least one of the following: sending the read-write device selection information to a first object; storing the read-write device selection information; updating the read-write device historical selection information of the IoT device; wherein the first object includes at least one of the following: a core network; the IoT device selects the second object that was most recently selected before the read-write device was selected according to the first configuration information, and the second object includes at least one of the following: a cell, a base station, or a UE.

[0385] In a possible implementation, the second information may include at least one of the following: area information of the second network area; device information of at least two selectable target read-write devices; and device information of one selectable target read-write device.

[0386] In the terminal provided in the embodiment of the present application, since the terminal can send configuration information to the Internet of Things device to assist the Internet of Things device in selecting a read-write device, or to instruct the Internet of Things device to select a selection range of a read-write device, so that the Internet of Things device can select a read-write device for communication, the Internet of Things device can select a more suitable read-write device to achieve better communication performance and business performance.

[0387] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the above-mentioned read-write device selection method embodiment, and achieve the same or corresponding technical effects. To avoid repetition, it will not be repeated here.

[0388] Take the above communication device as a network side device as an example. Fig.17 Figure 1 is a schematic diagram of the hardware structure of the network side device. Fig.17As shown, the network side device 1700 includes: an antenna 171, a radio frequency device 172, a baseband device 173, a processor 174 and a memory 175. The antenna 171 is connected to the radio frequency device 172. In the uplink direction, the radio frequency device 172 receives information through the antenna 171 and sends the received information to the baseband device 173 for processing. In the downlink direction, the baseband device 173 processes the information to be sent and sends it to the radio frequency device 172, and the radio frequency device 172 processes the received information and sends it out through the antenna 171.

[0389] The read / write device selection method in the above embodiment may be implemented in the baseband device 173, which includes a baseband processor.

[0390] The baseband device 173 may include, for example, at least one baseband board on which a plurality of chips are arranged. Fig.17 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 175 through a bus interface to call the program in the memory 175 to execute the network device operations shown in the above method embodiment.

[0391] The network side device may further include a network interface 176, which may be, for example, a common public radio interface (CommonPubl17c Rad17o 17nterface, CPR17).

[0392] Specifically, the network side device 1700 of the embodiment of the present invention also includes: instructions or programs stored in the memory 175 and executable on the processor 174. The processor 174 calls the instructions or programs in the memory 175 to execute the above-mentioned read-write device selection method and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0393] The radio frequency device 172 may be used to receive first configuration information sent by a first read / write device, wherein the first configuration information includes at least one of the following: first information for assisting the network side device 1700 in selecting a read / write device, and second information for indicating a selection range of the read / write device selected by the network side device 1700. The processor 174 may be used to select at least one second read / write device based on the first configuration information received by the radio frequency device 172.

[0394] In a possible implementation, the first read-write device or the second read-write device may include at least one of the following: a network side device, a UE, a reader, an auxiliary node device, and an intermediate node device.

[0395] In a possible implementation, the first configuration information may be carried by at least one of the following: a system message, a paging message, and a downlink message sent to the network side device 1700 .

[0396] In a possible implementation, the radio frequency device 172 can be specifically used to receive the above-mentioned first configuration information sent by one or more first read-write devices; wherein, at least some of the second read-write devices in the above-mentioned at least one second read-write device meet any of the following items: being a read-write device in the one or more first read-write devices; not being a read-write device in the one or more first read-write devices.

[0397] In a possible implementation, the first information may include at least one of the following: device information of the first read-write device; information on the type of network topology used by the first read-write device; information on the types of network topology supported by the first read-write device; information on the types of devices allowed to be accessed by the first read-write device; information on the types of devices prohibited from being accessed by the first read-write device; signal strength information of the first read-write device; device information of auxiliary node devices associated with the first read-write device; device information of intermediate node devices associated with the first read-write device; area information of the network area where the first read-write device is located; first indication information, the first indication information is used to indicate whether the network side device 1700 is allowed to select at least two read-write devices; second indication information, the second indication information is used to indicate whether the network side device 1700 selects a read-write device; third indication information, the third indication information is used to instruct the network side device 1700 to reselect a read-write device; and cycle information, the cycle information is used to indicate the cycle of the network side device 1700 selecting a read-write device.

[0398] In a possible implementation, the processor 174 may be specifically configured to select a first read / write device that satisfies a first rule as the at least one second read / write device according to the first information. The first rule includes at least one of the following: a first selection criterion; the device type that the first read / write device allows to access includes the device type of the network side device 1700; the device type that the first read / write device prohibits from accessing does not include the device type of the network side device 1700; the network topology type used by the first read / write device is the network topology type supported or preferred by the network side device 1700; the network topology type supported by the first read / write device is the network topology type supported or preferred by the network side device 1700.

[0399] In a possible implementation, the first selection criterion may include at least one of the following: the target device is within the uplink coverage of the network side device 1700; the target device is within the backscatter coverage of the network side device 1700; the network side device 1700 is within the downlink coverage of the target device; the signal strength of the target device received by the network side device 1700 is greater than or equal to the first signal strength threshold; the target device meets the cell selection criterion. The target device includes at least one of the following: a read-write device, an auxiliary node device within the communication range of the read-write device, and an intermediate node device within the communication range of the read-write device.

[0400] In one possible implementation, the above-mentioned signal strength information may include at least one of the following: transmission power information; receiving sensitivity information; required minimum signal strength information; signal strength threshold information, which is used to allow access to the network side device 1700; and the loss of backscattering of the network side device 1700.

[0401] In one possible implementation, the at least one second read-write device may include at least one of the following: at least two read-write devices selected according to the first indication information; one read-write device selected according to the second indication information; a read-write device reselected according to the third indication information; a read-write device selected according to the period indicated by the period information.

[0402] In a possible implementation, the first rule may also include at least one of the following: giving priority to reading and writing devices whose signal strength is greater than or equal to a second signal strength threshold; giving priority to reading and writing devices that use or support the network topology type preferred by the network side device 1700.

[0403] In a possible implementation, the at least one second read-write device selected may be: a read-write device selected to communicate with the Internet of Things device.

[0404] In a possible implementation, the processor 174 may also be used to report read-write device selection information to the at least one second read-write device after selecting a first read-write device that satisfies the first rule as the at least one second read-write device according to the first information; the read-write device selection information may include at least one of the following: device information of the at least one second read-write device; area information of the network area where the at least one second read-write device is located; third information, the third information is used to indicate that the network side device 1700 has reselected the read-write device or has changed the registration; fourth information, the fourth information is used to indicate the read-write device historically selected by the network side device 1700.

[0405] In a possible implementation, the radio frequency device 172 may also be used to receive second configuration information after the reporting module reports the read-write device selection information to the at least one second read-write device. The processor 174 may also be used to select a third read-write device that communicates with the network side device 1700 based on the second configuration information received by the radio frequency device 172. The second configuration information includes at least one of the following: area information of the first network area; device information of at least two read-write devices; device information of one read-write device.

[0406] In a possible implementation, the third read-write device may include at least one of the following: a read-write device in the first network area; one or more read-write devices among the at least two read-write devices; or the one read-write device.

[0407] In a possible implementation, the second configuration information may be carried by at least one of the following: a system message, a paging message, and a downlink message sent to the network side device 1700 .

[0408] In a possible implementation, the second information may include at least one of the following: area information of the second network area; device information of at least two selectable target read-write devices; and device information of one selectable target read-write device.

[0409] In a possible implementation, the processor 174 may be specifically configured to select the at least one second read-write device according to the selection range indicated by the second information.

[0410] In a possible implementation, the at least one second read-write device may include at least one of the following: a read-write device in the first network area; one or more read-write devices among the at least two selectable target read-write devices; or the selectable target read-write device.

[0411] In a possible implementation, the first configuration information includes the first information and the second information. The processor 174 may also be configured to select, according to the first information, a first read / write device that satisfies the first rule as a fourth read / write device that communicates with the network side device 1700 when a read / write device cannot be successfully selected according to the selection range indicated by the second information. Among them, the first information may include at least one of the following: device information of the above-mentioned first read-write device; information on the network topology type used by the above-mentioned first read-write device; information on the network topology types supported by the above-mentioned first read-write device; information on the device types allowed to be accessed by the above-mentioned first read-write device; information on the device types prohibited from being accessed by the above-mentioned first read-write device; signal strength information of the above-mentioned first read-write device; device information of the auxiliary node device associated with the above-mentioned first read-write device; device information of the intermediate node device associated with the above-mentioned first read-write device; area information of the network area where the above-mentioned first read-write device is located; first indication information, the first indication information is used to indicate whether the above-mentioned network side device 1700 is allowed to select at least two read-write devices; second indication information, the second indication information is used to indicate whether the above-mentioned network side device 1700 selects a read-write device; third indication information, the third indication information is used to instruct the above-mentioned network side device 1700 to reselect a read-write device; cycle information, the cycle information is used to indicate the cycle of the above-mentioned network side device 1700 selecting a read-write device. The first rule includes at least one of the following: a first selection criterion; the device types allowed to be accessed by the first read-write device include the device types of the above-mentioned network-side device 1700; the device types prohibited from accessing by the first read-write device do not include the device types of the above-mentioned network-side device 1700; the network topology type used by the first read-write device is the network topology type supported or preferred by the above-mentioned network-side device 1700; the network topology type supported by the first read-write device is the network topology type supported or preferred by the above-mentioned network-side device 1700.

[0412] In one possible implementation, the fourth read-write device may include at least one of the following: at least two read-write devices selected according to the first indication information; one read-write device selected according to the second indication information; a read-write device reselected according to the third indication information; a read-write device selected according to the period indicated by the period information.

[0413] In the network side device provided in the embodiment of the present application, since the network side device can select a read-write device based on the configuration information sent by the first read-write device to assist the network side device in selecting a read-write device, or to instruct the network side device to select a range of read-write devices, the network side device can select a more suitable read-write device to achieve better communication performance and business performance.

[0414] or,

[0415] Among them, the radio frequency device 172 can be used to send first configuration information to the Internet of Things device; wherein the first configuration information includes at least one of the following: first information used to assist the Internet of Things device in selecting a read-write device, and second information used to indicate the selection range of the Internet of Things device to select a read-write device.

[0416] In a possible implementation, the network side device 1700 may include at least one of the following: a network side device, a reader, an auxiliary node device, and an intermediate node device.

[0417] In a possible implementation, the first information may include at least one of the following: device information of the network side device 1700; information on the network topology type used by the network side device 1700; information on the network topology types supported by the network side device 1700; information on the device types allowed to access by the network side device 1700; information on the device types prohibited to access by the network side device 1700; signal strength information of the network side device 1700; device information of the auxiliary node device associated with the network side device 1700; device information of the intermediate node device associated with the network side device 1700; area information of the network area where the network side device 1700 is located; first indication information, the first indication information is used to indicate whether the Internet of Things device is allowed to select at least two read-write devices; second indication information, the second indication information is used to indicate whether the Internet of Things device selects a read-write device; third indication information, the third indication information is used to instruct the Internet of Things device to reselect a read-write device; and cycle information, the cycle information is used to indicate the cycle for the Internet of Things device to select a read-write device.

[0418] In one possible implementation, the signal strength information may include at least one of the following: transmission power information; receiving sensitivity information; required minimum signal strength information; signal strength threshold information, which is used to allow access to the IoT device; and the loss of backscattering of the IoT device.

[0419] In a possible implementation, the first configuration information includes the first information. The radio frequency device 172 can also be used to receive the read-write device selection information reported by the IoT device after sending the first configuration information to the IoT device; wherein the read-write device selection information can include at least one of the following: device information of at least one second read-write device selected by the IoT device; area information of the network area where the at least one second read-write device selected by the IoT device is located; third information, the third information is used to indicate that the IoT device has reselected the read-write device or has changed the registration; fourth information, the fourth information is used to indicate the read-write device selected historically by the IoT device.

[0420] In a possible implementation, the radio frequency device 172 may also be used to send second configuration information to the IoT device after receiving the read / write device selection information reported by the IoT device. The second configuration information may include at least one of the following: area information of the first network area; device information of at least two read / write devices; device information of one read / write device.

[0421] In one possible implementation, the processor 174 can be used to perform a first operation according to the read-write device selection information after the radio frequency device 172 receives the read-write device selection information reported by the IoT device, and the first operation includes at least one of the following: sending the read-write device selection information to a first object; storing the read-write device selection information; updating the read-write device historical selection information of the IoT device; wherein the first object includes at least one of the following: a core network; the IoT device selects the second object that was most recently selected before the read-write device was selected according to the first configuration information, and the second object includes at least one of the following: a cell, a base station, or a UE.

[0422] In a possible implementation, the second information may include at least one of the following: area information of the second network area; device information of at least two selectable target read-write devices; and device information of one selectable target read-write device.

[0423] In the network side device provided in the embodiment of the present application, since the network side device can send configuration information to the Internet of Things device to assist the Internet of Things device in selecting a read-write device, or to instruct the Internet of Things device to select a selection range of a read-write device, so that the Internet of Things device can select a read-write device for communication, the Internet of Things device can select a more suitable read-write device to achieve better communication performance and business performance.

[0424] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the above-mentioned read-write device selection method embodiment, and achieve the same or corresponding technical effects. To avoid repetition, it will not be repeated here.

[0425] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the above-mentioned read-write device selection method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0426] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0427] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned read-write device selection method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0428] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0429] The embodiments of the present application further provide a computer program / program product, which is stored in a storage medium. The computer program / program product is executed by at least one processor to implement the various processes of the above-mentioned read-write device selection method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0430] An embodiment of the present application also provides a communication system, including an Internet of Things device and a first read-write device as in the above-mentioned read-write device selection method embodiment.

[0431] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0432] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general hardware platform, and of course, can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, disk, CD, etc.), including several instructions to enable a terminal or a network-side device to execute the methods described in each embodiment of the present application.

[0433] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of the present application and the scope of protection of the claims, and these implementation methods are all within the protection of the present application.

Claims

1. A method for selecting a read / write device, characterized in that: The method comprises: The Internet of Things device receives first configuration information sent by the first read-write device, wherein the first configuration information includes at least one of the following: first information for assisting the Internet of Things device in selecting a read-write device, and second information for indicating a selection range for the Internet of Things device to select a read-write device; The Internet of Things device selects at least one second read-write device based on the first configuration information.

2. The method according to claim 1, characterized in that The first read-write device or the second read-write device includes at least one of the following: a network side device, a user equipment UE, a reader, an auxiliary node device, and an intermediate node device.

3. The method according to claim 1, characterized in that The first configuration information is carried by at least one of the following: a system message, a paging message, and a downlink message sent to the Internet of Things device.

4. The method according to claim 1, characterized in that: The Internet of Things device receives first configuration information sent by a first read-write device, including: The Internet of Things device receives the first configuration information sent by one or more first read-write devices; Wherein, at least some of the at least one second read-write device satisfy any of the following conditions: A read-write device among the one or more first read-write devices; It is not a read-write device among the one or more first read-write devices.

5. The method according to any one of claims 1 to 4, characterized in that The first information includes at least one of the following: Device information of the first read-write device; Information about the network topology type used by the first read-write device; Information about network topology types supported by the first read-write device; Information about the types of devices that the first read-write device is allowed to access; Information about device types that the first read-write device is prohibited from accessing; Signal strength information of the first reading and writing device; Device information of an auxiliary node device associated with the first read-write device; Device information of an intermediate node device associated with the first read-write device; Area information of the network area where the first reading and writing device is located; first indication information, where the first indication information is used to indicate whether the Internet of Things device is allowed to select at least two read-write devices; Second indication information, where the second indication information is used to indicate whether the IoT device selects a read-write device; Third indication information, the third indication information is used to instruct the Internet of Things device to reselect a read-write device; Cycle information, where the cycle information is used to indicate the cycle for the IoT device to select a read / write device.

6. The method according to claim 5, characterized in that The IoT device selects at least one second read-write device based on the first configuration information, including: The Internet of Things device selects, according to the first information, a first read-write device that satisfies a first rule as the at least one second read-write device; The first rule includes at least one of the following: First choice criteria; The device types allowed to be accessed by the first read-write device include the device types of the IoT devices; The device types prohibited from access by the first read-write device do not include the device types of the IoT device; The network topology type used by the first read-write device is the network topology type supported or preferred by the IoT device; The network topology type supported by the first read-write device is the network topology type supported or preferred by the Internet of Things device.

7. The method according to claim 6, characterized in that The first selection criterion includes at least one of the following: The target device is within the uplink coverage of the IoT device; The target device is within the backscatter coverage of the IoT device; The IoT device is within the downlink coverage of the target device; The signal strength of the first reading and writing device received by the Internet of Things device is greater than or equal to the first signal strength threshold; The target device meets the cell selection criteria; The target device includes at least one of the following: a first read-write device, an auxiliary node device within the communication range of the first read-write device, and an intermediate node device within the communication range of the first read-write device.

8. The method according to claim 5, characterized in that The signal strength information includes at least one of the following: Transmit power information; receiving sensitivity information; Required minimum signal strength information; Signal strength threshold information, where the signal strength threshold information is used to allow access to an IoT device; The backscatter loss of the IoT device.

9. The method according to claim 5, characterized in that The at least one second read-write device includes at least one of the following: at least two read-write devices selected according to the first indication information; A read-write device selected according to the second indication information; A read / write device reselected according to the third indication information; The read / write device is selected according to the cycle indicated by the cycle information.

10. The method according to claim 6, characterized in that The first rule also includes at least one of the following: Prioritize the reading and writing devices whose signal strength is greater than or equal to the second signal strength threshold; Preference is given to read-write devices that use or support the type of network topology preferred by the IoT device.

11. The method according to any one of claims 1 to 10, characterized in that The at least one second read-write device selected is: a read-write device selected to communicate with the Internet of Things device.

12. The method according to claim 6, characterized in that After the Internet of Things device selects, according to the first information, a first read-write device that satisfies a first rule as the at least one second read-write device, the method further includes: The Internet of Things device reports the read-write device selection information to the at least one second read-write device; The read / write device selection information includes at least one of the following: Device information of the at least one second read-write device; Area information of the network area where the at least one second read-write device is located; Third information, the third information is used to indicate that the IoT device has reselected a read / write device or has changed registration; The fourth information is used to indicate the read-write device historically selected by the IoT device.

13. The method according to claim 12, characterized in that After the Internet of Things device reports the read-write device selection information to the at least one second read-write device, the method further includes: The Internet of Things device receives second configuration information; The Internet of Things device selects a third reading and writing device for communicating with the Internet of Things device based on the second configuration information; The second configuration information includes at least one of the following: Area information of the first network area; Device information of at least two read-write devices; Device information for a read-write device.

14. The method according to claim 13, characterized in that The third reading and writing device includes at least one of the following: Read-write devices in the first network area; One or more read-write devices among the at least two read-write devices; The one reading and writing device.

15. The method according to claim 13, characterized in that The second configuration information is carried by at least one of the following: a system message, a paging message, and a downlink message sent to the Internet of Things device.

16. The method according to any one of claims 1 to 4, characterized in that The second information includes at least one of the following: Area information of the second network area; Device information of at least two selectable target read / write devices; Optionally, device information for a target read / write device.

17. The method according to claim 16, characterized in that The IoT device selects at least one second read-write device based on the first configuration information, including: The Internet of Things device selects the at least one second read-write device according to the selection range indicated by the second information.

18. The method according to claim 17, characterized in that The at least one second read-write device includes at least one of the following: Read-write devices in the second network area; One or more read-write devices among the at least two selectable target read-write devices; The selectable target read-write device.

19. The method according to claim 17, characterized in that The first configuration information includes the first information and the second information, and the method further includes: In the case that the IoT device fails to successfully select a read / write device according to the selection range indicated by the second information, the IoT device selects, according to the first information, a first read / write device that satisfies the first rule as a fourth read / write device that communicates with the IoT device; The first information includes at least one of the following: Device information of the first read-write device; Information about the network topology type used by the first read-write device; Information about network topology types supported by the first read-write device; Information about the types of devices that the first read-write device is allowed to access; Information about device types that the first read-write device is prohibited from accessing; Signal strength information of the first reading and writing device; Device information of an auxiliary node device associated with the first read-write device; Device information of an intermediate node device associated with the first read-write device; Area information of the network area where the first reading and writing device is located; first indication information, where the first indication information is used to indicate whether the Internet of Things device is allowed to select at least two read-write devices; Second indication information, where the second indication information is used to indicate whether the IoT device selects a read-write device; Third indication information, the third indication information is used to instruct the Internet of Things device to reselect a read-write device; Cycle information, where the cycle information is used to indicate the cycle for the IoT device to select a read / write device; The first rule includes at least one of the following: First choice criteria; The device types allowed to be accessed by the first read-write device include the device types of the IoT devices; The device types prohibited from access by the first read-write device do not include the device types of the IoT device; The network topology type used by the first read-write device is the network topology type supported or preferred by the IoT device; The network topology type supported by the first read-write device is the network topology type supported or preferred by the Internet of Things device.

20. The method according to claim 19, characterized in that The fourth reading and writing device includes at least one of the following: at least two read-write devices selected according to the first indication information; A read-write device selected according to the second indication information; A read / write device reselected according to the third indication information; The read / write device is selected according to the cycle indicated by the cycle information.

21. A method for selecting a read / write device, characterized in that: The method comprises: The first read-write device sends first configuration information to the Internet of Things device; The first configuration information includes at least one of the following: first information for assisting the IoT device in selecting a read / write device, and second information for indicating a selection range for the IoT device to select a read / write device.

22. The method according to claim 21, characterized in that The first reading and writing device includes at least one of the following: a network side device, a UE, a reader, an auxiliary node device, and an intermediate node device.

23. The method according to claim 21, characterized in that The first information includes at least one of the following: Device information of the first read-write device; Information about the network topology type used by the first read-write device; Information about network topology types supported by the first read-write device; Information about the types of devices that the first read-write device is allowed to access; Information about device types that the first read-write device is prohibited from accessing; Signal strength information of the first reading and writing device; Device information of an auxiliary node device associated with the first read-write device; Device information of an intermediate node device associated with the first read-write device; Area information of the network area where the first reading and writing device is located; first indication information, where the first indication information is used to indicate whether the Internet of Things device is allowed to select at least two read-write devices; Second indication information, where the second indication information is used to indicate whether the IoT device selects a read-write device; Third indication information, the third indication information is used to instruct the Internet of Things device to reselect a read-write device; Cycle information, where the cycle information is used to indicate the cycle for the IoT device to select a read / write device.

24. The method according to claim 23, characterized in that The first configuration information includes the first information; After the first reading and writing device sends the first configuration information to the Internet of Things device, the method further includes: The first read-write device receives the read-write device selection information reported by the Internet of Things device; The read / write device selection information includes at least one of the following: Device information of at least one second read-write device selected by the Internet of Things device; Area information of a network area where at least one second read-write device selected by the Internet of Things device is located; Third information, the third information is used to indicate that the IoT device has reselected a read / write device or has changed registration; The fourth information is used to indicate the read-write device historically selected by the IoT device.

25. The method according to claim 24, characterized in that After the first read-write device receives the read-write device selection information reported by the Internet of Things device, the method further includes: The first reading and writing device sends second configuration information to the Internet of Things device; The second configuration information includes at least one of the following: Area information of the first network area; Device information of at least two read-write devices; Device information for a read-write device.

26. The method according to claim 24, characterized in that After the first read-write device receives the read-write device selection information reported by the Internet of Things device, the method further includes: The first read-write device performs a first operation according to the read-write device selection information, where the first operation includes at least one of the following: Sending the read / write device selection information to the first object; Storing the read-write device selection information; Update the read / write device history selection information of the IoT device; Wherein, the first object includes at least one of the following: Core network; The Internet of Things device selects the second object most recently selected by the read / write device according to the first configuration information, where the second object includes at least one of the following: a cell, a base station, and a UE.

27. The method according to claim 21, characterized in that The second information includes at least one of the following: Area information of the second network area; Device information of at least two selectable target read / write devices; Optionally, device information for a target read / write device.

28. A reading and writing device selection device, characterized in that: The device comprises a receiving module and a selecting module; The receiving module is used to receive first configuration information sent by a first read-write device, wherein the first configuration information includes at least one of the following: first information for assisting the read-write device selection device in selecting a read-write device, and second information for instructing the read-write device selection device to select a selection range of a read-write device; The selection module is used to select at least one second read-write device based on the first configuration information received by the receiving module.

29. A reading and writing device selection device, characterized in that: The device comprises a sending module; The sending module is used to send the first configuration information to the Internet of Things device; The first configuration information includes at least one of the following: first information for assisting the IoT device in selecting a read / write device, and second information for indicating a selection range for the IoT device to select a read / write device.

30. A communication device, characterized in that: It includes a processor and a memory, the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, it implements the steps of the read-write device selection method as described in any one of claims 1 to 20, or implements the steps of the read-write device selection method as described in any one of claims 21 to 28.

31. A readable storage medium, characterized in that: The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, the steps of the read-write device selection method as described in any one of claims 1 to 20 are implemented, or the steps of the read-write device selection method as described in any one of claims 21 to 28 are implemented.

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