Passive tag registration method, apparatus and system, device, and storage medium

Abstract

The present disclosure relates to the technical field of communications, and provides a passive tag registration method, apparatus and system, a device, and a storage medium, for use in solving the problem of a short communication distance of RFID technology-based passive Internet of Things. The passive tag registration method is applied to a cellular passive management function network element of a core network in a cellular network, and comprises: receiving a first tag registration request sent by a passive service server, wherein the first tag registration request carries tag identification information and tag localization information; determining a target access and mobility management function (AMF) network element on the basis of the tag localization information; and the target AMF network element performing registration on the basis of a passive tag indicated by the tag identification information.

Description

Passive tag registration method, device, system, equipment and storage medium

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 202311186326.3 filed in China on September 14, 2023, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present disclosure relates to the field of communication technology, and in particular to a passive tag registration method, apparatus, system, device, and storage medium. Background Art

[0004] The passive Internet of Things based on radio frequency identification (RFID) technology mainly consists of a reader / writer, an activator, and a passive tag. The reader / writer is used to communicate with the passive tag through the activator to realize inventory, reading, and writing operations on the passive tag.

[0005] However, due to factors such as the low receiving sensitivity of passive tags and the limited transmission power of the RFID frequency band, the communication distance of the passive Internet of Things based on RFID technology is short, making it impossible to carry out large-scale, long-distance networking.

[0006] Summary of the Invention

[0007] The embodiments of the present disclosure provide a passive tag registration method, apparatus, system, device, and storage medium to solve the problem of short communication distance of passive Internet of Things based on RFID technology.

[0008] In a first aspect, an embodiment of the present disclosure provides a passive tag registration method, which is applied to a cellular passive management function network element of a core network in a cellular network, the method comprising:

[0009] Receive a first tag registration request sent by a passive service server; wherein the first tag registration request carries tag identification information and tag location information;

[0010] Determine the target access and mobility management function AMF network element according to the tag positioning information;

[0011] Register the passive tag indicated by the tag identification information through the target AMF network element.

[0012] Optionally, the determining a target access and mobility management function AMF network element according to the tag location information includes:

[0013] Searching a pre-stored table of correspondences between label positioning information and AMF network elements according to the label positioning information, and determining the target AMF network element from the table of correspondences between label positioning information and AMF network elements; or,

[0014] Send a query request to the core network element of the cellular network, the query request carrying the tag location information, receive a query response returned by the core network element based on the tag location information, the query response carrying relevant information of the target AMF network element, and determine the target AMF network element based on the relevant information of the target AMF network element.

[0015] Optionally, the registering, by the target AMF network element, the passive tag indicated by the tag identification information includes:

[0016] Send the first tag registration request to the target AMF network element; wherein the target AMF network element is used to determine the target access network device based on the tag positioning information, and receive the tag inventory response returned by the passive tag through the target access network device, and register the passive tag to the UDM network element according to the tag inventory response.

[0017] Optionally, sending the first label registration request to the target AMF network element includes: sending the first label registration request to the session management function SMF network element through the user plane UPF network element, and the SMF network element sending the first label registration request to the target AMF network element.

[0018] Optionally, the registering, by the target AMF network element, the passive tag indicated by the tag identification information includes:

[0019] generating a tag inventory instruction according to the first tag registration request, wherein the tag inventory instruction carries the tag identification information and the tag location information;

[0020] Sending the label inventory instruction to the target AMF network element, the target AMF network element is used to determine the target access network device according to the label positioning information, and receiving the label inventory response returned by the passive tag through the target access network device;

[0021] Receive the label inventory response returned by the target AMF network element;

[0022] The passive tag is registered with the UDM network element according to the tag inventory response.

[0023] Optionally, registering the passive tag with a UDM network element according to the tag inventory response includes:

[0024] generating a second tag registration request according to the tag inventory response, where the second tag registration request carries the tag identification information;

[0025] Sending the second tag registration request to a UDM network element, wherein the UDM network element is used to determine a registration result of the passive tag according to the tag identification information;

[0026] Receive the registration result of the passive tag returned by the UDM network element.

[0027] Optionally, the second tag registration request further carries any one or a combination of the following information:

[0028] Access network identification information, AMF identification information, passive tag registration indication information, tag type and tag characteristics.

[0029] Optionally, sending the label inventory instruction to the target AMF network element includes: sending the label inventory instruction to the SMF network element through the UPF network element, and the SMF network element sending the label inventory instruction to the target AMF network element.

[0030] Optionally, the receiving a first tag registration request sent by the passive service server includes:

[0031] The first label registration request sent by the passive service server is received through the network open function NEF network element preset in the core network.

[0032] Optionally, in the process of registering the passive tag indicated by the tag identification information through the target AMF network element, the passive tag receives downlink data from the terminal device through the cellular air interface, and / or the passive tag sends uplink data to the access network device through the passive Internet of Things air interface.

[0033] Optionally, the tag identification information includes any one or a combination of the following information: a temporary identification, a permanent identification, a globally unique identification, a cellular system external identification, and a cellular system internal identification; and / or,

[0034] The tag positioning information includes any one or a combination of the following information: location information of the area where the tag is located, service network area information where the tag is located, and network node identification information of the area where the tag is located.

[0035] In a second aspect, an embodiment of the present disclosure provides a passive tag registration device, which is applied to a cellular passive management function network element of a core network in a cellular network, including:

[0036] The first module is configured to receive a first tag registration request sent by a passive service server; wherein the first tag registration request carries tag identification information and tag location information;

[0037] The second module is used to determine the target access and mobility management function AMF network element according to the label positioning information;

[0038] The third module is used to register the passive tag indicated by the tag identification information through the target AMF network element.

[0039] Optionally, the second module is further used to search a pre-stored label positioning information and AMF network element correspondence table according to the label positioning information, and determine the target AMF network element from the label positioning information and AMF network element correspondence table; or,

[0040] Send a query request to the core network element of the cellular network, the query request carrying the tag location information, receive a query response returned by the core network element based on the tag location information, the query response carrying relevant information of the target AMF network element, and determine the target AMF network element based on the relevant information of the target AMF network element.

[0041] Optionally, the third module is also used to send the first tag registration request to the target AMF network element; wherein, the target AMF network element is used to determine the target access network device based on the tag positioning information, and receive the tag inventory response returned by the passive tag through the target access network device, and register the passive tag to the UDM network element according to the tag inventory response.

[0042] Optionally, the third module is also used to send the first label registration request to the session management function SMF network element through the user plane UPF network element, and the SMF network element sends the first label registration request to the target AMF network element.

[0043] Optionally, the third module is also used to generate a label inventory instruction based on the first label registration request, the label inventory instruction carries the label identification information and the label location information, and sends the label inventory instruction to the target AMF network element. The target AMF network element is used to determine the target access network device based on the label location information, and receive the label inventory response returned by the passive tag through the target access network device, receive the label inventory response returned by the target AMF network element, and register the passive tag to the UDM network element according to the label inventory response.

[0044] Optionally, the third module is also used to generate a second tag registration request based on the tag inventory response, the second tag registration request carries the tag identification information, and sends the second tag registration request to the UDM network element, wherein the UDM network element is used to determine the registration result of the passive tag based on the tag identification information, and receive the registration result of the passive tag returned by the UDM network element.

[0045] Optionally, the second tag registration request further carries any one or a combination of the following information:

[0046] Access network identification information, AMF identification information, passive tag registration indication information, tag type and tag characteristics.

[0047] Optionally, the third module is also used to send the label inventory instruction to the SMF network element through the UPF network element, and the SMF network element sends the label inventory instruction to the target AMF network element.

[0048] Optionally, the first module is further configured to receive a first label registration request sent by a passive service server through a network exposure function NEF network element pre-set in the core network.

[0049] Optionally, in the process of registering the passive tag indicated by the tag identification information through the target AMF network element, the passive tag receives downlink data from the terminal device through the cellular air interface, and / or the passive tag sends uplink data to the access network device through the passive Internet of Things air interface.

[0050] Optionally, the tag identification information includes any one or a combination of the following information: a temporary identification, a permanent identification, a globally unique identification, a cellular system external identification, and a cellular system internal identification; and / or,

[0051] The tag positioning information includes any one or a combination of the following information: location information of the area where the tag is located, service network area information where the tag is located, and network node identification information of the area where the tag is located.

[0052] In a third aspect, an embodiment of the present disclosure provides a passive tag registration system, including:

[0053] The passive service server is configured to send a first tag registration request to a cellular passive management function network element, wherein the first tag registration request carries tag identification information and tag location information;

[0054] The cellular passive management function network element is used to receive the first tag registration request, determine the target AMF network element according to the tag positioning information, and register the passive tag indicated by the tag identification information through the target AMF network element.

[0055] Optionally, the cellular passive management function network element is further used to search a pre-stored tag location information and AMF network element correspondence table according to the tag location information, and determine the target AMF network element from the tag location information and AMF network element correspondence table; or,

[0056] The cellular passive management function network element is also used to send a query request to the core network element of the cellular network, the query request carries the tag location information, receive a query response returned by the core network element based on the tag location information, the query response carries the relevant information of the target AMF network element, and determine the target AMF network element based on the relevant information of the target AMF network element.

[0057] Optionally, the cellular passive management function network element is further configured to send the first tag registration request to the target AMF network element;

[0058] The target AMF network element is also used to determine the target access network device based on the tag positioning information, receive the tag inventory response returned by the passive tag through the target access network device, and register the passive tag to the UDM network element according to the tag inventory response.

[0059] Optionally, the cellular passive management function network element is further used to generate a label inventory instruction according to the first label registration request, the label inventory instruction carries the label identification information and the label positioning information, sends the label inventory instruction to the target AMF network element, receives the label inventory response of the target AMF network element, and registers the passive tag to the UDM network element according to the label inventory response;

[0060] The target AMF network element is also used to determine the target access network device based on the tag positioning information, receive the tag inventory response returned by the passive tag through the target access network device, and send the tag inventory response to the cellular passive management function network element.

[0061] Optionally, the cellular passive management function network element or the target AMF network element is further configured to generate a second label registration request according to the label inventory response, the second label registration request carrying the label identification information, sending the second label registration request to the UDM network element, and receiving the registration result of the passive label returned by the UDM network element;

[0062] The UDM network element is also used to receive the second tag registration request, determine the registration result of the passive tag according to the tag identification information, and send the registration result of the passive tag to the cellular passive management function network element or the target AMF network element.

[0063] Optionally, the second tag registration request further carries any one or a combination of the following information:

[0064] Access network identification information, AMF identification information, passive tag registration indication information, tag type and tag characteristics.

[0065] Optionally, the cellular passive management function network element is also used to send the first label registration request to the session management function SMF network element through the user plane UPF network element, and the SMF network element sends the first label registration request to the target AMF network element; or, send the label inventory instruction to the SMF network element through the UPF network element, and the SMF network element sends the label inventory instruction to the target AMF network element.

[0066] Optionally, the cellular passive management function network element is further configured to receive a first label registration request sent by a passive service server through a network exposure function NEF network element pre-set in the core network.

[0067] Optionally, in the process of registering the passive tag indicated by the tag identification information through the target AMF network element, the passive tag receives downlink data from the terminal device through the cellular air interface, and / or the passive tag sends uplink data to the access network device through the passive Internet of Things air interface.

[0068] Optionally, the tag identification information includes any one or a combination of the following information: a temporary identification, a permanent identification, a globally unique identification, a cellular system external identification, and a cellular system internal identification; and / or,

[0069] The tag positioning information includes any one or a combination of the following information: location information of the area where the tag is located, service network area information where the tag is located, and network node identification information of the area where the tag is located.

[0070] In a fourth aspect, an embodiment of the present disclosure provides a passive tag registration device, comprising: a processor and a transceiver;

[0071] The processor is used to determine the target access and mobility management function AMF network element according to the tag positioning information, and register the passive tag indicated by the tag identification information through the target AMF network element;

[0072] The transceiver is configured to receive a first tag registration request sent by a passive service server; wherein the first tag registration request carries the tag identification information and the tag location information.

[0073] Optionally, the processor is further configured to search a pre-stored table of correspondence between label positioning information and AMF network elements according to the label positioning information, and determine the target AMF network element from the table of correspondence between label positioning information and AMF network elements; or,

[0074] The transceiver is further configured to send a query request to a core network element of the cellular network, the query request carrying the tag location information, and receive a query response returned by the core network element according to the tag location information, the query response carrying relevant information of the target AMF network element;

[0075] The processor is also used to determine the target AMF network element based on the relevant information of the target AMF network element.

[0076] Optionally, the transceiver is also used to send the first tag registration request to the target AMF network element; wherein, the target AMF network element is used to determine the target access network device based on the tag positioning information, and receive the tag inventory response returned by the passive tag through the target access network device, and register the passive tag to the UDM network element according to the tag inventory response.

[0077] Optionally, the processor is further configured to generate a tag inventory instruction according to the first tag registration request, wherein the tag inventory instruction carries the tag identification information and the tag location information;

[0078] The transceiver is also used to send the label inventory instruction to the target AMF network element, and the target AMF network element is used to determine the target access network device based on the label positioning information, and receive the label inventory response returned by the passive tag through the target access network device, receive the label inventory response returned by the target AMF network element, and register the passive tag to the UDM network element according to the label inventory response.

[0079] Optionally, the processor is further configured to generate a second tag registration request according to the tag inventory response, where the second tag registration request carries the tag identification information;

[0080] The transceiver is further configured to send the second tag registration request to the UDM network element, so that the UDM network element determines the registration result of the passive tag according to the tag identification information, and receives the registration result of the passive tag returned by the UDM network element.

[0081] Optionally, the second tag registration request further carries any one or a combination of the following information:

[0082] Access network identification information, AMF identification information, passive tag registration indication information, tag type and tag characteristics.

[0083] Optionally, the transceiver is also used to send the first label registration request to the session management function SMF network element through the user plane UPF network element, and the SMF network element sends the first label registration request to the target AMF network element; or, send the label inventory instruction to the SMF network element through the UPF network element, and the SMF network element sends the label inventory instruction to the target AMF network element.

[0084] Optionally, the transceiver is further configured to receive a first label registration request sent by a passive service server through a network exposure function (NEF) network element pre-set in the core network.

[0085] Optionally, in the process of registering the passive tag indicated by the tag identification information through the target AMF network element, the passive tag receives downlink data from the terminal device through the cellular air interface, and / or the passive tag sends uplink data to the access network device through the passive Internet of Things air interface.

[0086] Optionally, the tag identification information includes any one or a combination of the following information: a temporary identification, a permanent identification, a globally unique identification, a cellular system external identification, and a cellular system internal identification; and / or,

[0087] The tag positioning information includes any one or a combination of the following information: location information of the area where the tag is located, service network area information where the tag is located, and network node identification information of the area where the tag is located.

[0088] In a fifth aspect, an embodiment of the present disclosure provides a communication device, comprising: a transceiver, a memory, a processor, and a program stored in the memory and executable on the processor; the processor is configured to read the program in the memory to implement the steps in the passive tag registration method described above.

[0089] In a sixth aspect, an embodiment of the present disclosure provides a readable storage medium for storing a program, which implements the steps in the passive tag registration method described above when executed by a processor.

[0090] In the embodiment of the present disclosure, a cellular passive management function network element is pre-set in the core network, so that the passive service server can send a first tag registration request to the cellular passive management function network element, and the cellular passive management function network element registers the passive tag indicated by the first tag registration request through the target AMF network element, thereby achieving the purpose of registering the passive tags in the passive Internet of Things in the cellular network, so that the passive tags that have been successfully registered can access the cellular network for communication. Without significantly increasing the cost, power consumption, complexity and volume of the passive tags, the existing cellular network infrastructure and network scale are reused, and the communication distance of the passive Internet of Things is increased, thereby achieving the purpose of low-cost, long-distance and large-scale networking. BRIEF DESCRIPTION OF THE DRAWINGS

[0091] FIG1 is a schematic diagram of a network structure of a passive tag registration method according to an embodiment of the present disclosure;

[0092] FIG2 is a flow chart of a passive tag registration method provided by an embodiment of the present disclosure;

[0093] FIG3 is a timing diagram of a passive tag registration method according to an embodiment of the present disclosure;

[0094] FIG4 is a second timing diagram of the passive tag registration method provided by an embodiment of the present disclosure;

[0095] FIG5 is a schematic diagram of a structure of a passive tag registration device according to an embodiment of the present disclosure;

[0096] FIG6 is a schematic structural diagram of a passive tag registration system provided by an embodiment of the present disclosure;

[0097] FIG. 7 is a second structural diagram of the passive tag registration device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0098] In the embodiments of the present disclosure, the term "and / or" describes the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0099] In the embodiments of the present disclosure, the term "plurality" refers to two or more than two, and other quantifiers are similar thereto.

[0100] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure and not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present disclosure.

[0101] Referring to Figure 1, which is a schematic diagram of a network structure employing the passive tag registration method provided by an embodiment of the present disclosure, the network structure may include: passive tags, terminal devices, (Radio) Access Network (R)AN) devices, core network elements, and passive service servers.

[0102] Among them, the terminal device can be called: user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device.

[0103] The terminal device may be a device that provides voice / data connectivity to users, such as a handheld device or vehicle-mounted device with wireless connection function. At present, some examples of terminals may include: mobile phones, tablet computers, computers with wireless transceiver functions (such as laptops, PDAs, etc.), mobile Internet devices (MIDs), virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, 5th Generation Mobile Communication Technology (5GCM) The terminal equipment in the 5G Technology (5G) network or the terminal equipment in the future evolved public land mobile communication network (Public Land Mobile Network, PLMN), etc.

[0104] Furthermore, terminal devices can also be end devices in the Internet of Things (IoT) system. IoT is a crucial component of future information technology development. Its primary technical feature is connecting objects to the Internet through communication technologies, thereby enabling intelligent networks that interconnect humans and machines, and objects and things. IoT technology, for example, utilizes narrowband (NB) technology to achieve massive connectivity, deep coverage, and power-saving terminals.

[0105] In addition, terminal devices can also include sensors such as smart printers, train detectors, and gas stations. Their main functions include collecting data (part of the terminal devices), receiving control information and downlink data from network devices, and sending electromagnetic waves to transmit uplink data to network devices.

[0106] It should be understood that the terminal device can be any device that can access the network. The terminal device and the access network device can communicate with each other using a certain air interface technology.

[0107] Optionally, a UE can be used to act as a base station. For example, a UE can act as a scheduling entity, providing sidelink signals between UEs in vehicle-to-everything (V2X) or device-to-device (D2D) scenarios. For example, a cell phone and a car can communicate with each other using sidelink signals. Cell phones and smart home devices can also communicate without relaying communication signals through a base station. The core network is responsible for maintaining mobile network subscription data and providing UEs with functions such as session management, mobility management, policy management, and security authentication.

[0108] In this embodiment, the core network network elements may include not only traditional core network network elements, but also cellular passive management function network elements; and, optionally, network exposure function (NEF) network elements.

[0109] Traditional core network elements may include, but are not limited to, access and mobility management function (AMF) elements, authentication server function (AUSF) elements, unified data management (UDM) elements, session management function (SMF) elements, and user plane function (UPF) elements. The specific functions of traditional core network elements are not described here.

[0110] The cellular passive management function network element can be used to provide middleware functions in the passive Internet of Things system. For example, the cellular passive management function network element is used to communicate with the passive service server and generate operation instructions that can be recognized by the reader or activator based on application layer instructions. As shown in Figure 1, interfaces exist between the AMF network element, SMF network element, UPF network element, and the cellular passive management function network element, indicating that the AMF network element, SMF network element, and cellular passive management function network element can communicate with each other, and that the UPF network element can communicate with the cellular passive management function network element. In this embodiment, the UPF network element and the cellular passive management function network element can communicate via the N6 interface.

[0111] The NEF network element can be used to perform protocol conversion for external and internal interactions. For example, protocol conversion is performed on the interaction between the 3rd Generation Partnership Project (3GPP) external network element (such as the passive service server) and the 3GPP internal network element (such as the SMF). In this embodiment, the 3GPP network may refer to a network defined by the 3GPP protocol, such as a mobile communication network, a public land mobile network (PLMN), a non-public network (NPN), etc., which includes an access network, a core network, and terminal equipment. It may be a 5G network or a future evolved mobile communication network.

[0112] As shown in Figure 1, interfaces exist between the UE, (R)AN, and passive tags. By integrating passive IoT technology into the 5G network system architecture, passive tags no longer need to rely on dedicated spectrum to receive downlink PIoT information. Instead, they receive downlink PIoT information from terminal devices over the cellular air interface. Uplink PIoT information sent by passive tags can be sent to the (R)AN over the PIoT air interface, bypassing the UE when sending uplink information to the (R)AN.

[0113] It should be noted that the cellular passive management function network element shown in Figure 1 is an independent network element for illustrative purposes only. In other feasible implementations, the cellular passive management function network element can be co-located with other core network elements. For example, the cellular passive management function network element can be co-located with the NEF network element, or the cellular passive management function network element can be co-located with the UPF network element. When the cellular passive management function network element and the UPF network element are co-located, the architecture shown in Figure 1 may not include the NEF network element. When the two network elements are co-located, the interaction between the two network elements provided in the embodiments of the present disclosure becomes an internal operation of the co-located network element or can be omitted. In this embodiment and the following embodiments, the cellular passive management function network element is described as an independent network element.

[0114] See Figure 2, which is a flow chart of a passive tag registration method provided by an embodiment of the present disclosure. The passive tag registration method provided by an embodiment of the present disclosure is applied in the network structure shown in Figure 1, specifically applied to a cellular passive management function network element. The method may include the following steps:

[0115] Step 201: Receive a first tag registration request sent by a passive service server; wherein the first tag registration request carries tag identification information and tag location information.

[0116] In this embodiment, when the network architecture shown in FIG. 1 includes an NEF network element, step 201 may specifically include receiving the first label registration request sent by the passive service server through the NEF network element.

[0117] In this embodiment, the tag identification information may include any one or a combination of the following information: a temporary identification, a permanent identification, a globally unique identification, a cellular system external identification, and a cellular system internal identification.

[0118] In this embodiment, the tag positioning information may include any one or a combination of the following information: location information of the area where the tag is located, information about the service network area where the tag is located, and network node identification information of the area where the tag is located. The network node identification information of the area where the tag is located may include: a cell identifier (ID), a RAN ID, or an AMF ID. It should be noted that the ID described in this embodiment may include any one or a combination of the following: a temporary identifier, a permanent identifier, a globally unique identifier, a cellular system external identifier, and a cellular system internal identifier.

[0119] Step 202: Determine the target AMF network element based on the tag positioning information.

[0120] In this embodiment, the method of determining the target AMF network element in step 202 may include two methods:

[0121] One is to search the pre-stored label positioning information and AMF network element correspondence table according to the label positioning information, and determine the target AMF network element from the label positioning information and AMF network element correspondence table.

[0122] The other is to send a query request to the core network element of the cellular network, the query request carries the tag location information, receive a query response returned by the core network element based on the tag location information, the query response carries relevant information of the target AMF network element, and determine the target AMF network element based on the relevant information of the target AMF network element.

[0123] Of course, the above two methods are only specific examples of this embodiment. In actual use, the target AMF network can also be determined by any other possible means, and each case will not be described here one by one.

[0124] Step 203: Register the passive tag indicated by the tag identification information through the target AMF network element.

[0125] In this step, the target AMF network element may register the passive tag indicated by the tag identification information to the UDM network element, or may register it to other network element devices, which is not specifically limited. The embodiment of the present application is mainly described by taking registration to the UDM network element as an example.

[0126] Taking registration with a UDM network element as an example, in this embodiment, step 203 can specifically use two methods to register the passive tag with the UDM network element:

[0127] One is that the target AMF network element completes the registration process with the UDM network element.

[0128] The specific steps may include: the cellular passive management function network element sends a first tag registration request to the target AMF network element, the target AMF network element is used to determine the target access network device based on the tag positioning information, and receive the tag inventory response returned by the passive tag through the target access network device, and register the passive tag to the UDM network element according to the tag inventory response.

[0129] In this embodiment, the cellular passive management function network element sending the first label registration request to the target AMF network element may include: sending the first label registration request to the SMF network element through the UPF network element, and the SMF network element sending the first label registration request to the target AMF network element.

[0130] The other is that the cellular passive management function network element completes the registration process with the UDM network element.

[0131] The specific steps may include: the cellular passive management function network element generates a label inventory instruction based on the first label registration request, and the label inventory instruction carries label identification information and label positioning information; the cellular passive management function network element sends a label inventory instruction to the target AMF network element, and the target AMF network element is used to determine the target access network device based on the label positioning information, and receive the label inventory response returned by the passive tag through the target access network device; the cellular passive management function network element receives the label inventory response returned by the target AMF network element; the cellular passive management function network element registers the passive tag to the UDM network element according to the label inventory response.

[0132] Furthermore, in this embodiment, the cellular passive management function network element / target AMF network element registers the passive tag with the UDM network element according to the tag inventory response. Specifically, the steps include:

[0133] The cellular passive management function network element / target AMF network element generates a second tag registration request based on the tag inventory response, and the second tag registration request carries the tag identification information; the cellular passive management function network element / target AMF network element sends the second tag registration request to the UDM network element, so that the UDM network element determines the registration result of the passive tag based on the tag identification information; the cellular passive management function network element / target AMF network element receives the registration result of the passive tag returned by the UDM network element.

[0134] It should be noted that, in this embodiment, the UDM network element stores and maintains relevant information of the passive tag, including but not limited to: passive tag information, and correspondence information between the passive tag and the access network device and the AMF network element. The UDM network element can determine whether the passive tag can be registered based on the tag identification information in the second tag registration request.

[0135] In this embodiment, in order to enable the UDM network element to timely update and maintain the relevant information of the passive tag, the second tag registration request may also carry any one or a combination of the following information: access network identification information, AMF identification information, passive tag registration indication information, tag type, and tag characteristics. When the UDM network element registers the passive tag, the corresponding relationship information between the passive tag and the access network device and the AMF network element may be updated based on the above information carried in the second tag registration request.

[0136] In this embodiment, the cellular passive management function network element sending a label inventory instruction to the target AMF network element may include: sending a label inventory instruction to the SMF network element through the UPF network element, and the SMF network element sending the label inventory instruction to the target AMF network element.

[0137] It should be noted that in this embodiment, during the process of registering the passive tag indicated by the tag identification information through the target AMF network element, the passive tag can receive downlink data from the terminal device through the cellular air interface, and / or the passive tag can send uplink data to the access network device through the passive Internet of Things air interface.

[0138] In the embodiment of the present disclosure, a cellular passive management function network element is pre-set in the core network, so that the passive service server can send a first tag registration request to the cellular passive management function network element, and the cellular passive management function network element registers the passive tag indicated by the first tag registration request to the network through the target AMF network element, thereby achieving the purpose of registering the passive tags in the passive Internet of Things in the cellular network, so that the passive tags that have been successfully registered can access the cellular network for communication. Without significantly increasing the cost, power consumption, complexity and volume of the passive tags, the existing cellular network infrastructure and network scale are reused, and the communication distance of the passive Internet of Things is increased, thereby achieving the purpose of low-cost, long-distance and large-scale networking.

[0139] Since the technical solution provided by this embodiment can integrate passive Internet of Things technology with the cellular system, the communication distance of the passive Internet of Things is increased, thereby reducing the interference between readers and writers in the passive Internet of Things; and since the tag positioning information is carried during the registration process, the positioning of the passive tag is supported after networking according to the technical solution provided by the embodiment of the present disclosure.

[0140] In order to enable those skilled in the art to more clearly understand the specific implementation process of the passive tag registration method provided by the embodiment shown in FIG2 , two specific embodiments are described below:

[0141] See Figure 3, which is a timing diagram of the passive tag registration method provided by the embodiment of the present disclosure based on the network architecture shown in Figure 1. The passive tag registration method provided by the embodiment of the present disclosure may include the following steps:

[0142] Step 301: The passive service server sends a first tag registration request to a NET network element.

[0143] The first tag registration request carries tag identification information and tag location information.

[0144] Step 302: The NET network element sends a first tag registration request to the cellular passive management function network element.

[0145] Step 303: The cellular passive management function network element determines the target AMF network element based on the first tag registration request and sends the first tag registration request to the target AMF network element.

[0146] Step 304: The target AMF network element determines the target RAN based on the first label registration request, generates a label inventory instruction, and sends the label inventory instruction to the target RAN.

[0147] In this embodiment, the label inventory instruction can carry the identification information of the target AMF network element, such as AMF ID or AMF IP.

[0148] Step 305: The target RAN sends a label inventory instruction to the activator.

[0149] Step 306: The exciter sends an excitation signal and a tag inventory instruction to the passive tag.

[0150] Step 307: The passive tag returns a tag inventory response to the target RAN.

[0151] Step 308: The target RAN returns a label inventory response to the target AMF network element.

[0152] Step 309: The target AMF network element sends a second tag registration request to the UDM network element.

[0153] The second tag registration request carries tag identification information, and may also carry one or more of AMF identification information, passive tag registration indication information, tag identification information, tag type, and tag characteristics.

[0154] Step 310: The UDM network element determines whether the passive tag is successfully registered based on the tag identification information, and returns the registration result to the target AMF network element via the tag registration response.

[0155] In this embodiment, if the UDM network element successfully authenticates the passive tag, the tag registration response is a registration success response; otherwise, the tag registration response is a registration rejection response.

[0156] Step 311: The target AMF network element sends a tag registration response to the cellular passive management function network element.

[0157] Step 312: The cellular passive management function network element sends a tag registration response to the NEF network element.

[0158] Step 313: The NEF network element sends a label registration response to the passive service server.

[0159] It should be noted that in this embodiment, the NEF network element may not exist. In this case, steps 301 and 302 can be combined into one step, that is, the passive service server directly sends the first tag registration request to the cellular passive management function network element. In this case, steps 312 and 313 can also be combined into one step, that is, the cellular passive management function network element directly sends the tag registration response to the passive service server.

[0160] It should be noted that, in this embodiment, the exciter may not exist. In this case, steps 305 and 306 may be combined into one step, that is, the target RAN directly sends an excitation signal and a tag inventory instruction to the passive tag.

[0161] See Figure 4, which is a timing diagram of the passive tag registration method provided by the embodiment of the present disclosure based on the network architecture shown in Figure 1. The passive tag registration method provided by the embodiment of the present disclosure may include the following steps:

[0162] Step 401: The passive service server sends a first tag registration request to a NET network element.

[0163] The first tag registration request carries tag identification information and tag location information.

[0164] Step 402: The NET network element sends a first tag registration request to the cellular passive management function network element.

[0165] Step 403: The cellular passive management function network element determines the target AMF network element based on the first tag registration request, generates a tag inventory instruction, and sends the tag inventory instruction to the target AMF network element.

[0166] In this embodiment, the tag inventory instruction may carry tag location information.

[0167] Step 404: The target AMF network element determines the target RAN based on the label inventory instruction and sends the label inventory instruction to the target RAN.

[0168] In this embodiment, the label inventory instruction may also carry identification information of the target AMF network element, such as AMF ID or AMF IP.

[0169] Step 405: The target RAN sends a label inventory instruction to the activator.

[0170] Step 406: The exciter sends an excitation signal and a tag inventory instruction to the passive tag.

[0171] Step 407: The passive tag returns a tag inventory response to the target RAN.

[0172] Step 408: The target RAN returns a label inventory response to the target AMF network element.

[0173] Step 409: The target AMF network element returns a label inventory response to the cellular passive management function network element.

[0174] Step 410: The cellular passive management function network element sends a second tag registration request to the UDM network element.

[0175] The second tag registration request carries tag identification information, and may also carry one or more of AMF identification information, passive tag registration indication information, tag identification information, tag type, and tag characteristics.

[0176] Step 411: The UDM network element determines whether the passive tag is successfully registered based on the tag identification information, and returns the registration result to the cellular passive management function network element via a tag registration response.

[0177] In this embodiment, if the UDM network element successfully authenticates the passive tag, the tag registration response is a registration success response; otherwise, the tag registration response is a registration rejection response.

[0178] Step 412: The cellular passive management function network element sends a tag registration response to the NEF network element.

[0179] Step 413: The NEF network element sends a label registration response to the passive service server.

[0180] It should be noted that in this embodiment, the NEF network element may not exist. In this case, steps 401 and 402 can be combined into one step, that is, the passive service server directly sends the first tag registration request to the cellular passive management function network element. In this case, steps 412 and 413 can also be combined into one step, that is, the cellular passive management function network element directly sends the tag registration response to the passive service server.

[0181] It should be noted that, in this embodiment, the exciter may not exist. In this case, steps 405 and 406 may be combined into one step, that is, the target RAN directly sends an excitation signal and a tag inventory instruction to the passive tag.

[0182] Referring to Figure 5, Figure 5 is a schematic diagram of the structure of a passive tag registration device provided by an embodiment of the present disclosure. The passive tag registration device 500 provided by an embodiment of the present disclosure is applied to a cellular passive management function network element of a core network in a cellular network, and may include:

[0183] The first module 501 is configured to receive a first tag registration request sent by a passive service server; wherein the first tag registration request carries tag identification information and tag location information;

[0184] The second module 502 is used to determine the target access and mobility management function AMF network element according to the tag positioning information;

[0185] The third module 503 is used to register the passive tag indicated by the tag identification information through the target AMF network element.

[0186] Optionally, the second module 502 is further configured to search a pre-stored table of correspondence between label positioning information and AMF network elements according to the label positioning information, and determine the target AMF network element from the table of correspondence between label positioning information and AMF network elements; or,

[0187] Send a query request to the core network element of the cellular network, the query request carrying the tag location information, receive a query response returned by the core network element based on the tag location information, the query response carrying relevant information of the target AMF network element, and determine the target AMF network element based on the relevant information of the target AMF network element.

[0188] Optionally, the third module 503 is also used to send the first tag registration request to the target AMF network element; wherein, the target AMF network element is used to determine the target access network device based on the tag positioning information, and receive the tag inventory response returned by the passive tag through the target access network device, and register the passive tag to the UDM network element according to the tag inventory response.

[0189] Optionally, the third module 503 is also used to send the first label registration request to the session management function SMF network element through the user plane UPF network element, and the SMF network element sends the first label registration request to the target AMF network element.

[0190] Optionally, the third module 503 is also used to generate a label inventory instruction based on the first label registration request, the label inventory instruction carries the label identification information and the label location information, and sends the label inventory instruction to the target AMF network element. The target AMF network element is used to determine the target access network device based on the label location information, and receive the label inventory response returned by the passive tag through the target access network device, receive the label inventory response returned by the target AMF network element, and register the passive tag to the UDM network element according to the label inventory response.

[0191] Optionally, the third module 503 is also used to generate a second tag registration request based on the tag inventory response, the second tag registration request carries the tag identification information, and sends the second tag registration request to the UDM network element, wherein the UDM network element is used to determine the registration result of the passive tag based on the tag identification information, and receive the registration result of the passive tag returned by the UDM network element.

[0192] Optionally, the second tag registration request further carries any one or a combination of the following information:

[0193] Access network identification information, AMF identification information, passive tag registration indication information, tag type and tag characteristics.

[0194] Optionally, the third module 503 is also used to send the label inventory instruction to the SMF network element through the UPF network element, and the SMF network element sends the label inventory instruction to the target AMF network element.

[0195] Optionally, the first module 501 is further configured to receive a first label registration request sent by a passive service server through a network exposure function NEF network element pre-set in the core network.

[0196] Optionally, in the process of registering the passive tag indicated by the tag identification information through the target AMF network element, the passive tag receives downlink data from the terminal device through the cellular air interface, and / or the passive tag sends uplink data to the access network device through the passive Internet of Things air interface.

[0197] Optionally, the tag identification information includes any one or a combination of the following information: a temporary identification, a permanent identification, a globally unique identification, a cellular system external identification, and a cellular system internal identification; and / or,

[0198] The tag positioning information includes any one or a combination of the following information: location information of the area where the tag is located, service network area information where the tag is located, and network node identification information of the area where the tag is located.

[0199] In the embodiment of the present disclosure, a cellular passive management function network element is pre-set in the core network, so that the passive service server can send a first tag registration request to the cellular passive management function network element, and the cellular passive management function network element registers the passive tag indicated by the first tag registration request to the network through the target AMF network element, thereby achieving the purpose of registering the passive tags in the passive Internet of Things in the cellular network, so that the passive tags that have been successfully registered can access the cellular network for communication. Without significantly increasing the cost, power consumption, complexity and volume of the passive tags, the existing cellular network infrastructure and network scale are reused, and the communication distance of the passive Internet of Things is increased, thereby achieving the purpose of low-cost, long-distance and large-scale networking.

[0200] Since the technical solution provided by this embodiment can integrate passive Internet of Things technology with the cellular system, the communication distance of the passive Internet of Things is increased, thereby reducing the interference between readers and writers in the passive Internet of Things; and since the tag positioning information is carried during the registration process, the positioning of the passive tag is supported after networking according to the technical solution provided by the embodiment of the present disclosure.

[0201] See Figure 6, which is a schematic diagram of the structure of the passive tag registration system provided by the embodiment of the present disclosure. The passive tag registration system provided by the embodiment of the present disclosure may include:

[0202] The passive service server 601 is configured to send a first tag registration request to the cellular passive management function network element 602, wherein the first tag registration request carries tag identification information and tag location information;

[0203] The cellular passive management function network element 602 is used to receive the first tag registration request, determine the target AMF network element 603 according to the tag positioning information, and register the passive tag indicated by the tag identification information to the unified data management UDM network element 604 through the target AMF network element 603.

[0204] Optionally, the cellular passive management function network element 602 is further configured to search a pre-stored tag location information and AMF network element correspondence table according to the tag location information, and determine the target AMF network element 603 from the tag location information and AMF network element correspondence table; or,

[0205] The cellular passive management function network element 602 is also used to send a query request to the core network element of the cellular network, the query request carries the tag location information, receive a query response returned by the core network element based on the tag location information, the query response carries relevant information of the target AMF network element 603, and determine the target AMF network element 603 based on the relevant information of the target AMF network element 603.

[0206] Optionally, the cellular passive management function network element 602 is further configured to send the first tag registration request to the target AMF network element 603;

[0207] The target AMF network element 603 is also used to determine the target access network device according to the tag positioning information, receive the tag inventory response returned by the passive tag through the target access network device, and register the passive tag to the UDM network element 604 according to the tag inventory response.

[0208] Optionally, the cellular passive management function network element 602 is further configured to generate a label inventory instruction according to the first label registration request, the label inventory instruction carrying the label identification information and the label location information, send the label inventory instruction to the target AMF network element 603, receive the label inventory response returned by the target AMF network element 603, and register the passive tag to the UDM network element 604 according to the label inventory response;

[0209] The target AMF network element 603 is also used to determine the target access network device based on the tag positioning information, receive the tag inventory response returned by the passive tag through the target access network device, and send the tag inventory response to the cellular passive management function network element 602.

[0210] Optionally, the cellular passive management function network element 602 or the target AMF network element 603 is further configured to generate a second tag registration request according to the tag inventory response, the second tag registration request carrying the tag identification information, send the second tag registration request to the UDM network element 604, and receive the registration result of the passive tag returned by the UDM network element 604;

[0211] The UDM network element 604 is also used to receive the second tag registration request, determine the registration result of the passive tag according to the tag identification information, and send the registration result of the passive tag to the cellular passive management function network element 602 or the target AMF network element 603.

[0212] Optionally, the second tag registration request further carries any one or a combination of the following information:

[0213] Access network identification information, AMF identification information, passive tag registration indication information, tag type and tag characteristics.

[0214] Optionally, the cellular passive management function network element 602 is also used to send the first label registration request to the session management function SMF network element through the user plane UPF network element, and the SMF network element sends the first label registration request to the target AMF network element 603; or, send the label inventory instruction to the SMF network element through the UPF network element, and the SMF network element sends the label inventory instruction to the target AMF network element 603.

[0215] Optionally, the cellular passive management function network element 602 is further configured to receive a first tag registration request sent by a passive service server through a network exposure function NEF network element pre-set in the core network.

[0216] Optionally, in the process of registering the passive tag indicated by the tag identification information to the unified data management UDM network element through the target AMF network element, the passive tag receives downlink data from the terminal device through the cellular air interface, and / or the passive tag sends uplink data to the access network device through the passive Internet of Things air interface.

[0217] Optionally, the tag identification information includes any one or a combination of the following information: a temporary identification, a permanent identification, a globally unique identification, a cellular system external identification, and a cellular system internal identification; and / or,

[0218] The tag positioning information includes any one or a combination of the following information: location information of the area where the tag is located, service network area information where the tag is located, and network node identification information of the area where the tag is located.

[0219] In the embodiment of the present disclosure, a cellular passive management function network element is pre-set in the core network, so that the passive service server can send a first tag registration request to the cellular passive management function network element, and the cellular passive management function network element registers the passive tag indicated by the first tag registration request to the network through the target AMF network element, thereby achieving the purpose of registering the passive tags in the passive Internet of Things in the cellular network, so that the passive tags that have been successfully registered can access the cellular network for communication. Without significantly increasing the cost, power consumption, complexity and volume of the passive tags, the existing cellular network infrastructure and network scale are reused, and the communication distance of the passive Internet of Things is increased, thereby achieving the purpose of low-cost, long-distance and large-scale networking.

[0220] Since the technical solution provided by this embodiment can integrate passive Internet of Things technology with the cellular system, the communication distance of the passive Internet of Things is increased, thereby reducing the interference between readers and writers in the passive Internet of Things; and since the tag positioning information is carried during the registration process, the positioning of the passive tag is supported after networking according to the technical solution provided by the embodiment of the present disclosure.

[0221] Refer to Figure 7, which is a schematic diagram of the structure of a passive tag registration device provided by an embodiment of the present disclosure. The passive tag registration device provided by an embodiment of the present disclosure includes: a processor 701 and a transceiver 702;

[0222] The processor 701 is configured to determine a target access and mobility management function AMF network element according to the tag location information, and register the passive tag indicated by the tag identification information through the target AMF network element;

[0223] The transceiver 702 is configured to receive a first tag registration request sent by a passive service server; wherein the first tag registration request carries the tag identification information and the tag location information.

[0224] Optionally, the processor 701 is further configured to search a pre-stored table of correspondence between label positioning information and AMF network elements according to the label positioning information, and determine the target AMF network element from the table of correspondence between label positioning information and AMF network elements; or,

[0225] The transceiver 702 is further configured to send a query request to a core network element of the cellular network, the query request carrying the tag location information, and receive a query response returned by the core network element according to the tag location information, the query response carrying relevant information of the target AMF network element;

[0226] The processor 701 is also used to determine the target AMF network element based on the relevant information of the target AMF network element.

[0227] Optionally, the transceiver 702 is also used to send the first tag registration request to the target AMF network element; wherein the target AMF network element is used to determine the target access network device based on the tag positioning information, and receive the tag inventory response returned by the passive tag through the target access network device, and register the passive tag to the UDM network element according to the tag inventory response.

[0228] Optionally, the processor 701 is further configured to generate a tag inventory instruction according to the first tag registration request, where the tag inventory instruction carries the tag identification information and the tag location information;

[0229] The transceiver 702 is also used to send the label inventory instruction to the target AMF network element, and the target AMF network element is used to determine the target access network device based on the label positioning information, and receive the label inventory response returned by the passive tag through the target access network device, receive the label inventory response returned by the target AMF network element, and register the passive tag to the UDM network element according to the label inventory response.

[0230] Optionally, the processor 701 is further configured to generate a second tag registration request according to the tag inventory response, where the second tag registration request carries the tag identification information;

[0231] The transceiver 702 is further configured to send the second tag registration request to the UDM network element, so that the UDM network element determines the registration result of the passive tag according to the tag identification information, and receives the registration result of the passive tag returned by the UDM network element.

[0232] Optionally, the second tag registration request further carries any one or a combination of the following information:

[0233] Access network identification information, AMF identification information, passive tag registration indication information, tag type and tag characteristics.

[0234] Optionally, the transceiver 702 is also used to send the first label registration request to the session management function SMF network element through the user plane UPF network element, and the SMF network element sends the first label registration request to the target AMF network element; or, send the label inventory instruction to the SMF network element through the UPF network element, and the SMF network element sends the label inventory instruction to the target AMF network element.

[0235] Optionally, the transceiver 702 is further configured to receive a first label registration request sent by a passive service server through a network exposure function NEF network element pre-set in the core network.

[0236] Optionally, in the process of registering the passive tag indicated by the tag identification information through the target AMF network element, the passive tag receives downlink data from the terminal device through the cellular air interface, and / or the passive tag sends uplink data to the access network device through the passive Internet of Things air interface.

[0237] Optionally, the tag identification information includes any one or a combination of the following information: a temporary identification, a permanent identification, a globally unique identification, a cellular system external identification, and a cellular system internal identification; and / or,

[0238] The tag positioning information includes any one or a combination of the following information: location information of the area where the tag is located, service network area information where the tag is located, and network node identification information of the area where the tag is located.

[0239] In the embodiment of the present disclosure, a cellular passive management function network element is pre-set in the core network, so that the passive service server can send a first tag registration request to the cellular passive management function network element, and the cellular passive management function network element registers the passive tag indicated by the first tag registration request to the network through the target AMF network element, thereby achieving the purpose of registering the passive tags in the passive Internet of Things in the cellular network, so that the passive tags that have been successfully registered can access the cellular network for communication. Without significantly increasing the cost, power consumption, complexity and volume of the passive tags, the existing cellular network infrastructure and network scale are reused, and the communication distance of the passive Internet of Things is increased, thereby achieving the purpose of low-cost, long-distance and large-scale networking.

[0240] Since the technical solution provided by this embodiment can integrate passive Internet of Things technology with the cellular system, the communication distance of the passive Internet of Things is increased, thereby reducing the interference between readers and writers in the passive Internet of Things; and since the tag positioning information is carried during the registration process, the positioning of the passive tag is supported after networking according to the technical solution provided by the embodiment of the present disclosure.

[0241] An embodiment of the present disclosure further provides a communication device, comprising: a transceiver, a memory, a processor, and a program stored in the memory and executable on the processor, wherein the processor implements the steps in the above-mentioned passive tag registration method when executing the program.

[0242] It should be noted that the division of units in the embodiments of the present disclosure is illustrative and is merely a logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of the present disclosure may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0243] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present disclosure is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present disclosure. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0244] The present disclosure also provides a readable storage medium, on which a program is stored. When the program is executed by a processor, each process of the above-mentioned passive tag registration method embodiment is implemented, and the same technical effect is achieved. To avoid repetition, it is not repeated here. The readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as a floppy disk, a hard disk, a magnetic tape, a magneto-optical disc (MO), etc.), optical storage (such as a compact disk (CD), a high-density digital video disc (DVD), a Blu-ray disc (BD), a high-definition versatile disc (HVD), etc.), and semiconductor storage (such as ROM, erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), non-volatile memory (NAND FLASH), solid-state disk (SSD), etc.).

[0245] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0246] Through the description of the above embodiments, those skilled in the art can clearly understand that the above embodiment methods can be implemented by means of software plus the necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better embodiment. Based on this understanding, the technical solution of the present disclosure, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, disk, CD-ROM), and includes a number of instructions for enabling a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in each embodiment of the present disclosure.

[0247] The embodiments of the present disclosure are described above in conjunction with the accompanying drawings, but the present disclosure 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 disclosure, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present disclosure and the claims, all of which are protected by the present disclosure.

Claims

1. A passive tag registration method, applied to a cellular passive management function network element of a core network in a cellular network, the method comprising: Receive a first tag registration request sent by a passive service server; wherein the first tag registration request carries tag identification information and tag location information; Determine the target access and mobility management function AMF network element according to the tag positioning information; The target AMF network element registers the passive tag indicated by the tag identification information.

2. The method according to claim 1, wherein: The determining of the target access and mobility management function AMF network element according to the tag location information includes: According to the label location information, searching a pre-stored table of correspondence between label location information and AMF network elements, and determining the target AMF network element from the table of correspondence between label location information and AMF network elements; or, Send a query request to the core network element of the cellular network, the query request carrying the tag location information, receive a query response returned by the core network element based on the tag location information, the query response carrying relevant information of the target AMF network element, and determine the target AMF network element based on the relevant information of the target AMF network element.

3. The method according to claim 1, wherein: The registering, by the target AMF network element, the passive tag indicated by the tag identification information comprises: Send the first tag registration request to the target AMF network element; wherein the target AMF network element is used to determine the target access network device according to the tag location information, and receive the tag inventory response returned by the passive tag through the target access network device, and register the passive tag to the UDM network element according to the tag inventory response.

4. The method according to claim 3, wherein: The sending of the first label registration request to the target AMF network element includes: sending the first label registration request to the session management function SMF network element through the user plane UPF network element, and the SMF network element sending the first label registration request to the target AMF network element.

5. The method according to claim 1, wherein: The registering, by the target AMF network element, the passive tag indicated by the tag identification information comprises: Generate a tag inventory instruction according to the first tag registration request, wherein the tag inventory instruction carries the tag identification information and the tag location information; Sending the label inventory instruction to the target AMF network element, the target AMF network element is used to determine the target access network device according to the label location information, and receiving the label inventory response returned by the passive tag through the target access network device; Receive the label inventory response returned by the target AMF network element; The passive tag is registered to the UDM network element according to the tag inventory response.

6. The method according to claim 3 or 5, wherein: The registering the passive tag to the UDM network element according to the tag inventory response includes: A second tag registration request is generated according to the tag inventory response, and the second tag registration request carries the tag Identification information; Sending the second tag registration request to a UDM network element, wherein the UDM network element is used to determine a registration result of the passive tag according to the tag identification information; Receive the registration result of the passive tag returned by the UDM network element.

7. The method according to claim 6, wherein: The second tag registration request also carries any one or a combination of the following information: Access network identification information, AMF identification information, passive tag registration indication information, tag type and tag characteristics.

8. The method according to claim 5, wherein: The sending of the label inventory instruction to the target AMF network element includes: sending the label inventory instruction to the SMF network element through the UPF network element, and the SMF network element sending the label inventory instruction to the target AMF network element.

9. The method according to claim 1, wherein: The receiving a first tag registration request sent by the passive service server includes: The first label registration request sent by the passive service server is received through the network open function NEF network element pre-set in the core network.

10. The method according to claim 1, wherein: During the process of registering the passive tag indicated by the tag identification information through the target AMF network element, the passive tag receives downlink data from the terminal device through the cellular air interface, and / or the passive tag sends uplink data to the access network device through the passive Internet of Things air interface.

11. The method according to claim 1, wherein: The tag identification information includes any one or a combination of the following information: a temporary identification, a permanent identification, a globally unique identification, a cellular system external identification, and a cellular system internal identification; and / or, The tag location information includes any one or a combination of the following information: location information of the area where the tag is located, service network area information where the tag is located, and network node identification information of the area where the tag is located.

12. A passive tag registration device, applied to a cellular passive management function network element of a core network in a cellular network, comprising: The first module is used to receive a first tag registration request sent by a passive service server; wherein the first tag registration request carries tag identification information and tag location information; The second module is used to determine the target access and mobility management function AMF network element according to the label positioning information; The third module is used to register the passive tag indicated by the tag identification information through the target AMF network element.

13. A passive tag registration system, comprising: The passive service server is used to send a first tag registration request to a cellular passive management function network element, wherein the first tag registration request carries tag identification information and tag location information; The cellular passive management function network element is used to receive the first tag registration request, determine the target AMF network element according to the tag positioning information, and register the passive tag indicated by the tag identification information through the target AMF network element.

14. A passive tag registration device, comprising: processor and transceiver; wherein, The processor is used to determine the target access and mobility management function AMF network element according to the tag location information, and register the passive tag indicated by the tag identification information through the target AMF network element; The transceiver is used to receive a first tag registration request sent by a passive service server; wherein the first tag registration request carries the tag identification information and the tag location information.

15. A communication device comprising: A transceiver, a memory, a processor, and a program stored in the memory and executable on the processor; wherein, The processor is used to read the program in the memory to implement the steps in the passive tag registration method as described in any one of claims 1-11.

16. A readable storage medium for storing a program, wherein when the program is executed by a processor, the program implements the steps in the passive tag registration method according to any one of claims 1 to 11.

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