Wireless access, information processing method and network system based on the Internet of Things

Abstract

An embodiment of the present disclosure provides a wireless access, information processing method and network system based on Internet of Things, which includes: connecting to a core network via an interface between a core network and an access network; and reporting at least one of information of reachability management information, authority confirmation result, and authentication result of an Internet of Things terminal to the core network, which can solve the problem in the related art that the 5G wireless access network architecture cannot be adapted to Internet of Things terminals, and by modifying the functions performed by the core network and the access network, the modified wireless access network can be applied to the access and management of Internet of Things terminals.

Description

[Technical field]

[0001] [CROSS REFERENCE TO RELATED APPLICATIONS] This disclosure is based on and claims priority to Chinese patent application CN202210734624.0, entitled "Wireless access, information processing method and network system based on Internet of Things," filed on June 24, 2022, the entire disclosure of which is incorporated herein by reference.

[0002] [Technical field] TECHNICAL FIELD The embodiments of the present disclosure relate to the field of communications, and in particular to wireless access, information processing methods and network systems based on the Internet of Things. [Background technology]

[0003] The 5G radio access network architecture mainly includes a 5G access network and a 5G core network, and the 5G core network has many network elements. The network elements mainly included in the 5G core network include an Access and Mobility Management Function (AMF), a Session Management Function (SMF), and a User Plane Function (UPF). The AMF is responsible for terminal access authority, handover, etc. The SMF provides service continuity, uninterrupted user experience, including situations where IP addresses and / or anchor points change. The UPF and the associated Protocol Data Unit (PDU) session can be realized by a Radio Access Network (RAN) node through the service area of ​​the N3 interface between the RAN and the UPF, and there is no need to add a new UPF or delete / reallocate the UPF.

[0004] However, with the emergence of new businesses, such as Internet of Things terminal services, and new technologies, such as cell free technology, the existing network architecture cannot meet these needs, and the existing network needs to be upgraded or reconstructed.

[0005] In the related art, no solution has yet been proposed to the problem that the 5G radio access network architecture cannot adapt to Internet of Things terminals. Summary of the Invention [Problem to be solved by the invention]

[0006] The embodiments of the present disclosure provide a wireless access, information processing method and network system based on the Internet of Things to solve at least the problem in the related art that the 5G wireless access network architecture cannot adapt to the Internet of Things terminals. [Means for solving the problem]

[0007] According to one embodiment of the present disclosure, connecting to a core network via a core network-to-access network interface; and reporting at least one of information of reachability management, authority checking result, and authentication result of the Internet of Things terminal to the core network.

[0008] According to another embodiment of the present disclosure, connecting to the access network via a core network-to-access network interface; The present invention further provides an information processing method based on the Internet of Things, including a step of receiving at least one of information of reachability management information, authority verification result, and authentication result of the Internet of Things terminal reported from the access network.

[0009] According to another embodiment of the present disclosure, there is provided a system including an access network and a core network, The present invention further provides a network system based on Internet of Things, in which the core network performs billing management for Internet of Things terminals, and the access network accesses the core network via an interface between the core network and the access network, and reports at least one of information on reachability management of the Internet of Things terminals, authority confirmation results, and authentication results to the core network.

[0010] According to yet another embodiment of the present disclosure, there is further provided a computer readable storage medium having a computer program stored thereon, the computer program being configured, when executed, to perform the steps of any of the method embodiments described above.

[0011] According to another embodiment of the present disclosure, there is further provided an electronic device including a memory having a computer program stored therein, and a processor configured to execute the computer program to perform steps of any of the method embodiments described above. [Brief description of the drawings]

[0012] [Figure 1] FIG. 2 is a block diagram of the hardware configuration of a mobile terminal of a wireless access method based on the Internet of Things according to an embodiment of the present disclosure. [Diagram 2] 1 is a flowchart of a wireless access method based on Internet of Things according to an embodiment of the present disclosure. [Diagram 3]1 is a flowchart of an information processing method based on the Internet of Things according to an embodiment of the present disclosure. [Figure 4] FIG. 2 is an architecture diagram of a network system in which a user plane link according to the present embodiment exists. [Diagram 5] FIG. 1 is an architecture diagram of a network system in which a user plane link does not exist in accordance with this embodiment. [Figure 6] FIG. 1 is an architecture diagram (part 1) of a network system based on an Internet of Things terminal according to this embodiment. [Figure 7] This is an architecture diagram (part 2) of a network system based on an Internet of Things terminal in this embodiment. [Figure 8] FIG. 2 is a block diagram of a protocol stack according to the embodiment. [Figure 9] 11 is a flowchart illustrating a process in which a base station according to the present embodiment establishes a link with a core network. [Figure 10] 1 is a flowchart (part 1) of information exchange between a base station and a core network according to the present embodiment. [Figure 11] 11 is a flowchart (part 2) of information exchange between the base station and the core network according to the present embodiment. [Figure 12] FIG. 1 is a block diagram of a network system based on the Internet of Things according to an embodiment of the present invention. [Figure 13] FIG. 1 is a schematic architecture diagram (part 1) of a network system based on an Internet of Things terminal according to this embodiment. [Figure 14] FIG. 2 is a schematic architecture diagram (part 2) of a network system based on an Internet of Things terminal according to this embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. In addition, terms such as "first" and "second" in the specification, claims and drawings of the present disclosure are not used to describe a specific order or chronology, but are used to distinguish similar objects.

[0014] The embodiment of the method according to the embodiment of the present disclosure may be executed in a mobile terminal, a computer terminal, or a similar computing device. Taking the mobile terminal as an example, FIG. 1 is a block diagram of a hardware configuration of a mobile terminal of the wireless access method based on the Internet of Things according to the embodiment of the present disclosure. As shown in FIG. 1, the mobile terminal includes one or more (only one is shown in FIG. 1) processors 102 (processor 102 includes, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data, and the mobile terminal may further include a transmission device 106 and an input / output device 108 for performing a communication function. As can be understood by those skilled in the art, the structure as shown in FIG. 1 is schematic and does not limit the structure of the mobile terminal. For example, the mobile terminal may further include more or less components than those shown in FIG. 1, or have a different configuration than those shown in FIG. 1.

[0015] The memory 104 may store software programs and modules of application software, such as computer programs corresponding to the wireless access method based on the Internet of Things in the embodiment of the present disclosure, and the processor 102 executes various functional applications and service chain address pool slicing processes, i.e., realizes the above-mentioned method, by executing the computer programs stored in the memory 104. The memory 104 may include high-speed random access memory, and may further include non-volatile memory, such as one or more magnetic storage devices, flash memories, or other non-volatile solid-state memories. In some embodiments, the memory 104 may further include memories that are located remotely with respect to the processor 102, and these remote memories may be connected to the mobile terminal through a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0016] The transmission device 106 transmits and receives data via a network. A specific example of the network may include a wireless network provided by a carrier of a mobile terminal. In one embodiment, the transmission device 106 includes a network adapter (abbreviated as Network Interface Controller, NIC) that is connected to other network devices by a base station and can communicate with the Internet. In one embodiment, the transmission device 106 may be a radio frequency (abbreviated as RF) module that communicates with the Internet wirelessly.

[0017] In this embodiment, a wireless access method based on Internet of Things is provided, which is executed on the above-mentioned mobile terminal or network architecture. FIG. 2 is a flowchart of the wireless access method based on Internet of Things according to an embodiment of the present disclosure. As shown in FIG. 2, the process includes the following steps S202 and S204.

[0018] In step S202, a connection is made to the core network via an interface between the core network and the access network.

[0019] In this embodiment, the above step S202 may specifically include a step of accessing the core network through an interface provided by a control plane entity of the core network based on a control plane entity, and reporting at least one of reachability management information, authority confirmation result, and authentication result to the core network.

[0020] In step S204, at least one of information of reachability management, authority checking result, and authentication result of the Internet of Things terminal is reported to the core network.

[0021] The above steps S202 to S204 can solve the problem in the related art that the 5G radio access network architecture cannot adapt to Internet of Things terminals, and by modifying the functions performed by the core network and the access network, the modified radio access network can be applied to the access and management of Internet of Things terminals.

[0022] In a preferred embodiment, before the above step S204, the method further includes: obtaining reachability management information of the Internet of Things terminal; and / or performing authority verification on the Internet of Things terminal to obtain the authority verification result; and / or performing authentication on the Internet of Things terminal to obtain the authentication result.

[0023] In one embodiment, the method further includes the steps of: sending a request message to a control plane entity of the core network by a control plane entity of the access network to request link establishment, the request message including at least one of a link identifier, a target DN identifier, a target slice identifier, a session management function identifier, a link type, an access network side resource, and a Quality of Service (QoS) request; and receiving an establishment decision message returned from the core network according to the control plane entity of the access network, the establishment decision message including at least one of a link identifier, a success or failure identifier, and a core network side resource. The control plane entity in this embodiment may specifically be an SMF, etc.

[0024] In another embodiment, the method further includes, when the reachability management information is location change information, a step of obtaining location change information in which an access network of an Internet of Things terminal has changed; a step of reporting the location change information to a core network, specifically, a step of sending the location change information to the core network by a first message; and a step of receiving an execution result returned from the core network by a second message, where the execution result includes a reception result indicating whether the location change information has been successfully received.

[0025] In another embodiment, the method further includes, when the reachability management information is increased or decreased tag information or tag information of a reachable terminal, a step of receiving the increased or decreased tag information sent from the core network via a third message and feeding back a reception result of whether the third message was successfully received to the core network via a fourth message, or a step of receiving a fifth message requesting a report of the increased or decreased tag information or the tag information of the reachable terminal by the core network, and feeding back the increased or decreased tag information or the tag information of the reachable terminal to the core network via a sixth message.

[0026] According to another embodiment of the present disclosure, a wireless access method based on the Internet of Things is further provided, and FIG. 3 is a flowchart of an information processing method based on the Internet of Things according to an embodiment of the present disclosure. As shown in FIG. 3, the flow includes the following steps S302 and S304.

[0027] In step S302, a connection is made to the access network via an interface between the core network and the access network.

[0028] In step S304, at least one of reachability management information, authority confirmation result, and authentication result of the Internet of Things terminal reported from the access network is received.

[0029] The above steps S302 to S304 can solve the problem in the related art that the 5G radio access network architecture cannot adapt to Internet of Things terminals, and by modifying the functions performed by the core network and the access network, the modified radio access network can be applied to the access and management of Internet of Things terminals.

[0030] In this embodiment, the above step S302 may specifically include providing the interface to the access network by a control plane entity of a core network.

[0031] In one embodiment, the method further includes a step of receiving, by a control plane entity of a core network, a request message for link establishment sent from a control plane entity of the access network, the request message including at least one of a link identifier, a target DN identifier, a target slice identifier, a session management function identifier, a link type, an access network side resource, and a service QoS requirement; a step of sending a notification message to a user plane entity of the core network after allocating link resources by the control plane entity of the core network, and establishing the link by the user plane entity of the core network; and a step of returning an establishment decision message by the control plane entity of the core network to the control plane entity of the access network, the establishment decision message including at least one of a link identifier, a success or failure identifier, and a core network side resource.

[0032] In one embodiment, when the reachability management information is location change information, the method further includes a step of receiving location change information of the access network of the Internet of Things terminal sent from the access network, specifically, a step of receiving the location change information sent from the access network by a first message, a step of returning an execution result to the access network by a second message, wherein the execution result includes a reception result of whether the location change information was successfully received, and a step of notifying a target access network holding the Internet of Things terminal based on the location change information.

[0033] In one embodiment, the method further includes, when the reachability management information is increased or decreased tag information or tag information of a reachable terminal, a step of transmitting the increased or decreased tag information to the access network by a third message and receiving a reception result of whether the increased or decreased tag information was successfully received or not fed back from the access network by a fourth message, or a step of transmitting a fifth message to the access network requesting a report of the increased or decreased tag information or the tag information of the reachable terminal and receiving the increased or decreased tag information or the tag information of the reachable terminal fed back from the access network by a sixth message.

[0034] Hereinafter, this embodiment will be described in detail by taking an example in which the control plane entity is an SMF and the access network is a base station.

[0035] Supper RAN Architecture 1 In the future, the network will provide services to various businesses and include Internet of Things terminals with simplified functions, such as Radio Frequency Identification (abbreviated as RFID).

[0036] Because the functions of IoT terminals are simple, there is no need to support the control process between the terminals and the core network. In addition, Internet of Things (IoT) terminals transmit less data, maintain the link with the network for a short time, and need to be in a charging state most of the time, so the network does not need to maintain the terminal state. Therefore, the network function can be greatly simplified.

[0037] If an IoT terminal does not need to support a process between the terminal and the core network, for example, a Non-Access Stratum (abbreviated as NAS) process, the function of the AMF may be simplified. The AMF does not need to maintain a link between the terminal and the AMF, for example, an N1 link. The AMF does not need to maintain the state of the terminal and the time during which the terminal is operable is short, so the AMF does not need to maintain the reachability of the terminal. The AMF does not need to maintain the mobility of the terminal, because the communication time of the terminal is short and there is no need to consider the continuity of communication during the movement process.

[0038] In summary, the AMF function is simplified. At the same time, considering the flexibility of base station operation, some functions of the AMF are transferred to the base station, and only some functions are reserved in the core network. As shown in Figures 4 and 5, CP refers to the control plane of the base station / DU and includes the function of AMF2, and UP refers to the user plane of the base station / DU.

[0039] AMF1 on the core network side needs to reserve one of the following: interface with base station, slicing function, charging, and SMF selection.

[0040] The AMF 2 located in the base station has one of the following functions: reachability management, authorization confirmation, authentication, and resource (eg, IP address, etc.) allocation.

[0041] Figure 4 is an architecture diagram of a network system in which a user plane link exists in this embodiment. As shown in Figure 4, for a scene in which a user plane connection exists, a base station transmits data to a core network through a user plane connection, or the core network transmits data to a base station through a user plane connection.

[0042] FIG. 5 is an architecture diagram of a network system in which a user plane link does not exist in this embodiment. As shown in FIG. 5, for a scene in which a user plane connection does not exist, the base station transmits data in a message via a control plane connection to the core network, or the core network transmits data in a message to the base station via a control plane connection.

[0043] The base station is The base station reports its own resources, for example, base station resources of the connection between the base station and the core network (including the control plane and the user plane connection), to the core network; The base station reports the results of the authorization check and authentication to the core network. connections which the base station is attempting to establish, release or modify, and connections which it has successfully or unsuccessfully established, released or modified; A base station reports information of reachable terminals to a core network; It is necessary for the core network to exchange information with the base station, for example, to inform the base station of the resources in the core network for the connection between the base station and the core network (including the control plane and user plane connections).

[0044] Supper RAN Architecture 2 Based on Architecture 1, considering simplification, a base station may be directly connected to a DN, and core network forwarding is omitted; a data network (abbreviated as DN) is arranged locally or in a local area network, supporting terminals of specific functions or terminals of dedicated networks, and these terminals are fixedly linked to one DN or S-NSSAI, so that the UPF can establish one link with a fixed DN, and these terminals can share one link, and data of multiple terminals may all be transmitted to the DN by this link, so that the link function of the UPF is greatly simplified. Since the IoT business is single and not sensitive to delay, QoS management is simple.

[0045] In summary, the AMF function is simplified, some functions of the AMF are downgraded to the base station, and only some functions are reserved for the core network. The UPF function is simplified, and some functions of the UPF are transferred to the base station. Figure 6 is an architecture diagram (part 1) of a network system based on an Internet of Things terminal according to this embodiment. As shown in Figure 6, CP refers to the control plane of the base station / DU and includes the function of AMF2, and UP refers to the user plane of the base station / DU and includes the function of UPF.

[0046] The AMF 1 on the core network side needs to reserve one of the functions of interfacing with the base station and charging.

[0047] AMF2, located on the base station side, Functions for managing links between base stations and DNs, such as establishing and releasing links; determining which terminals are associated with a link, i.e., determining which terminals' data are to be transmitted on a link; allocating or releasing base station side resources associated with said link; Selection and control of UPF, Configure UPF to route data to the correct DN, Dynamic Host Configuration Protocol version 4 (abbreviated as DHCPv4) and DHCPv6, Calculating or reporting data volume; reachability management, Permission check, Authentication.

[0048] The UPF located in the base station has one of the following functions: buffering and checking downlink packets, routing and transmitting data, reporting data volume, linking to DN, and monitoring packets.

[0049] The base station is A base station reports its own resources, for example, base station resources of a connection (including a control plane connection) between the base station and the core network to the core network; The base station reports the amount of data to the core network; The base station reports information to the core network, such as a DN identifier, a connection identifier, a terminal identifier, etc., when establishing or releasing a connection with the DN; A base station reports information of reachable terminals to a core network; It is necessary to exchange information with the core network, such as notifying the base station of its own resources, for example, resources in the core network for the connection between the base station and the core network (including the control plane connection).

[0050] Supper RAN Architecture 3 The network needs to guarantee the continuity of services and sessions. Considering that the UE moves between different base stations / DUs, when the UE moves from one base station / DU1 ​​to another base station / DU2, the UPF of the core network disconnects the connection with the base station / DU1 ​​and establishes a connection with the base station / DU2 to ensure the link continuity of the business. However, since such a disconnect-and-establish method temporarily interrupts data transmission and affects data continuity, the UPF of the core network may be connected to multiple base stations / DUs simultaneously. In addition, when supporting joint transmission of different base stations / DUs to improve data reliability, the UPF of the core network may be connected to multiple base stations / DUs simultaneously.

[0051] Based on the above idea, a central UPF is established in the core network, and a branch UPF is established in each DU. Figure 7 is an architecture diagram (part 2) of a network system based on an Internet of Things terminal according to this embodiment. As shown in Figure 7, CP refers to the control plane of the base station / DU and includes the function of AMF2, and UP refers to the user plane of the base station / DU and includes the function of UPF2.

[0052] AMF1 on the core network side: Interface with base station, Charges, Functions for managing links between the core network and DN, such as establishing and releasing links, A function for managing links between the core network and base stations / DUs, e.g., managing which base stations / DUs to establish links with; Mapping a link between a core network and a DN and a link between a core network and a base station / DU; determining whether to copy or offload packet transmissions; Allocating or releasing core network side resources associated with the link; Selection and control of UPF, Configure UPF to route data to the correct DN, DHCPv4 and DHCPv6, One of the functions, reporting the amount of data, needs to be withheld.

[0053] AMF2, located on the base station side, Functions for managing links between base stations and core networks, such as establishing and releasing links; determining which terminals are associated with a link, i.e., determining which terminals' data are to be transmitted on a link; allocating or releasing base station side resources associated with said link; Selection and control of UPF, reachability management, Authorization check, and Authentication.

[0054] The UPF1 on the core network side needs to reserve one of the following functions: buffering and checking downlink packets, routing and transmitting data, generating data volume reports, linking to DNs, monitoring packets, copying packets, and offloading packets.

[0055] The UPF2 located in the base station has one of the functions of routing and transmitting data.

[0056] The base station is The base station reports its own resources, for example, base station resources of the connection between the base station and the core network (including the control plane and the user plane connection), to the core network; A base station reports information of reachable terminals to a core network; It is necessary for the core network to exchange information with the base station, for example, to inform the base station of the resources in the core network for the connection between the base station and the core network (including the control plane and user plane connections).

[0057] Based on the above architecture, the RAN is simplified. Considering that the functions supported by the terminal are simple, every communication between the terminal and the base station does not need to establish a radio bearer and only needs to transmit one packet.

[0058] Data received by the base station may be transmitted directly to the DN. FIG. 8 is a block diagram of a protocol stack according to this embodiment. As shown in FIG. 8, the base station receives information of the terminal through IoT MAC and IoT PHY, identifies it through IoT transform, and generates data addressed to the DN. The AMF selects a target DN and establishes a link. After the UPF and DN establish a link, the UPF transmits data to the DN. The UPF of the base station receives data through the link established by the UPF and DN, identifies it through IoT transform, and generates data to be transmitted to the UE. The data is transmitted to the terminal through IoT MAC and IoT PHY.

[0059] Regarding architecture 1, FIG. 9 is a flowchart of a base station according to this embodiment establishing a link with a core network. As shown in FIG. 9, the process of establishing a link is as follows:

[0060] When the base station receives the information fed back from the terminal, it can determine to establish a link between the terminal and the DN based on the information, and send an establishment request message to the AMF, where the message includes at least one of a link identifier, a target DN identifier, a target S-NSSAI, an SMF identifier, a link type (e.g., the link is an IoT link and the link carries data of multiple terminals), a base station side resource (e.g., an IP address associated with the link), a user plane General Packet Radio Service Tunneling Protocol for User Plane (abbreviated as GTPU), and a service QoS requirement (e.g., a rate that the service needs to meet).

[0061] When the AMF receives a request from the base station, it selects a UPF based on the received information and allocates resources related to the link, such as an IP address. The AMF then notifies the UPF to establish the link.

[0062] After the link is successfully established, the AMF feeds back the result to the base station and sends an establishment confirmation message, where the message includes at least one of a link identifier, a success or failure identifier, resources on the core network side (e.g., an IP address associated with the link), a GTPU identifier, etc.

[0063] In this embodiment, by delegating the reachability management function to the RAN, the base station has the reachability function. The base station needs to know the location range of the terminal, for example, the cell or base station in which the terminal is located can establish a link with the base station and the terminal can receive its signal.

[0064] The base station needs to know the location range of the terminal and maintain the terminal information. The base station records and stores the information of the terminal connected to it, such as the terminal identifier, S-NSSAI, Public Lands Mobile Network (abbreviated as PLMN), application framework (Dot Net Nuck, abbreviated as DN), etc., and when the number of terminals increases or decreases, the base station needs to notify the core network or server.

[0065] Considering that the terminal may move, the base station needs to constantly keep track of changes in the terminals in its coverage area. Specifically, the base station acquires the location range of the terminal by the following methods 1 and 2.

[0066] In method 1, the base station actively acquires information of the terminal. The base station can request the terminal to report the information at regular intervals or based on a certain event. The base station can make all or some of the terminals start the storage process. An instruction sent from the base station can select all or some of the terminals. The selected terminals feed back information including the terminal identifier, S-NSSAI, PLMN, DN, etc. to the base station. After acquisition, the base station can compare the information with the stored terminal information to acquire the status of the terminal, for example, an increase or decrease in the number of terminals, terminals that can establish a link, etc.

[0067] In method 2, the base station actively acquires information of the changed terminal. After the terminal discovers that its location range changes or the single network slice selection assistance information (abbreviated as S-NSSAI), PLMN, and DN linked to the terminal change, the terminal reports the information. The base station can cause the changed terminal to start the storage process. The command sent by the base station can select the changed terminal, for example, including whether the selected cell, location range, S-NSSAI, PLMN, and DN change. The selected terminal feeds back the information to the base station and reports the changed information to the base station, including the terminal's identifier, S-NSSAI, PLMN, DN, etc. After acquisition, the base station can acquire the terminal's status, for example, an increase or decrease in the number of terminals, terminals that can establish a link, etc.

[0068] 1. The base station reports information of the terminal to the core network, specifically, by a first message, for example, an SMF. FIG. 10 is a flowchart (part 1) of information exchange between the base station and the core network in this embodiment. As shown in FIG. 10, the base station reports location change information by msg1 (corresponding to the above first message), for example, eNB CP Relocation Indication / tag indication, and instructs the core network (Center Network, CN) to provide newly added or deleted tag information, including Electronic Product Code (EPC), Cyclic Redundancy Check (CRC), etc.

[0069] 2. After receiving, the CN feeds back msg2 (corresponding to the above second message), for example, Connection Establishment Indication / relay, to the base station to notify the execution result, success or failure.

[0070] 1. When the core network acquires a change in the terminal location, it can notify the base station that previously held the information. FIG. 11 is a flowchart (part 2) of information exchange between the base station and the core network in this embodiment. As shown in FIG. 11, the CN indicates the information of newly added or deleted tags, including EPC, CRC, etc., to the base station by msg1 (corresponding to the above-mentioned third message), for example, MME CP Relocation Indication / tag indication.

[0071] 2. After receiving, the base station feeds back to the CN via msg2 (corresponding to the above fourth message), for example, NAS NON DELIVERY INDICATION / relay, to inform the CN of the execution result, success or failure; or 1. The CN requests the base station to report tag information, for example, reachable tag information stored in the base station, or newly added or deleted tag information, through msg1 (corresponding to the fifth message above).

[0072] 2. After receiving, the base station feeds back tag information, such as the reachability tag stored in the base station, or the EPC, CRC, etc. of the newly increased or decreased tag, to the CN via msg2 (corresponding to the above-mentioned 6th message), and instructs the base station.

[0073] According to another embodiment of the present disclosure, there is further provided a network system based on Internet of Things. FIG. 12 is a block diagram of the network system based on Internet of Things according to the embodiment, the network system based on Internet of Things includes an access network and a core network; The core network performs billing management for Internet of Things terminals, and the access network accesses the core network via an interface between the core network and the access network, and reports at least one of information on reachability management of the Internet of Things terminals, authority confirmation results, and authentication results to the core network.

[0074] In one embodiment, the core network includes a control plane entity, and the control plane CP of the access network includes an access mobility management function; A control plane entity of the core network provides an interface to the access network and performs charging management for the Internet of Things terminal; The control plane entity of the access network accesses the core network via the interface and reports at least one of information on reachability management, authority verification results, and authentication results of the Internet of Things terminal to the core network.

[0075] In one embodiment, the control plane entity of the core network further performs at least one of a slicing function and a session management function; The access network further reports resources of the base station side to the core network, and reports to the core network information on the established, released, or changed links between the core network and the access network based on the terminal, and link information on the successful or failed establishment, release, or change of the links; The core network notifies the access network of resources on the core network side.

[0076] In one embodiment, when the access network is linked to a data network DN, the user plane of the access network includes a user plane management function; The access mobility management function of the access network further performs at least one of the following: managing a link between the access network and the DN; determining an Internet of Things terminal associated with the link; allocating or releasing access network-side resources associated with the link; selecting, controlling, and configuring a user plane management function, and routing data to the corresponding DN; communicating with the core network based on DHCPv4 or DHCPv6; and reporting data volume; The user plane management function of the access network performs at least one of the following: buffering and checking downlink packets, routing and transmitting data, reporting data volume, linking to the DN, and monitoring packets.

[0077] In one embodiment, when the access network is multiple, the core network is linked to the multiple access networks respectively, and the user plane UP of the access network includes a user plane management function; The control plane entity of the core network further performs at least one of the following: managing a first link between the core network and a data network DN; managing a second link between the core network and the access network; mapping the first link and the second link; determining copy or offload of packet transmission, and allocating or releasing core network side resources related to the link; selecting and controlling the user plane management function; configuring the user plane management function; routing data to a corresponding DN; communicating with the access network based on DHCPv4 or DHCPv6; and reporting data volume; The control plane entity of the access network further performs at least one of the following: managing a link between the access network and the core network; determining an Internet of Things terminal associated with the link; releasing access network-side resources associated with the link; and selecting and controlling the user plane management function; The user plane management function of the core network further performs at least one of buffering downlink packets, routing and transmitting data, generating data volume reports, linking to the DN, monitoring packets, copying packets, and offloading packets; The user plane management function of the access network routes and transmits data.

[0078] According to another embodiment of the present disclosure, there is further provided an Internet of Things based radio access network system, the Internet of Things based radio access network system including an access network and a core network; The core network performs some of the functions of the control plane CP or the user plane UP of the access network.

[0079] In one embodiment, the core network includes at least an access mobility management function AMF1, a session management function SMF, and a user plane management function UPF, and the control plane CP of the access network includes an AMF2.

[0080] The AMF1 of the core network performs at least one function of the user plane UP of the access network, which is to send channel quality and load information of the access network to the SMF of the core network.

[0081] The SMF of the core network performs at least one function of establishing, modifying, or releasing an established bearer, determining whether data of a QOS flow is copied or offloaded, determining mapping from a QOS flow to a bearer, setting encryption and decryption algorithms, and setting an integrity algorithm.

[0082] The UPF of the core network performs at least one of the following functions: mapping QOS flow to a DRB, copying and offloading packets, encrypting packets based on the encryption algorithm, or decrypting packets based on the decryption algorithm, and determining packet integrity based on the integrity algorithm.

[0083] The AMF2 of the access network performs at least one function of reporting channel quality and load information.

[0084] In the future, the network will provide services to one terminal by multiple nodes (e.g., base stations, DUs). It is necessary to coordinate between multiple nodes. Therefore, the core network can add the functions of several coordinated nodes. Different base stations / DUs can provide services to different businesses, for example, based on the channel quality or load of the base station / DU, a base station / DU with a light load and good channel quality can be selected to provide a delay-sensitive and reliable business to the terminal. Different base stations / DUs can provide services to the same business, for example, supporting joint transmission of different base stations / DUs to improve data reliability. Different base stations / DUs can use the same encryption / decryption algorithm, integrity protection algorithm. In summary, some functions of the user plane of the base station are elevated to the core network.

[0085] Figure 13 is a schematic architecture diagram (part 1) of a network system based on an Internet of Things terminal in this embodiment. As shown in Figure 13, CP refers to the control plane of a base station / DU, CP refers to the user plane of a base station / DU, and UPF is the user plane of a core network, and includes functions of SDAP and PDCP.

[0086] The function added by the AMF is to transmit information such as the channel quality and load of the base station / DU to the SMF.

[0087] The features added by SMF are: Establishing, modifying or releasing established bearers; determining whether the QOS flow data is copied or offloaded; determining a QOS flow to bearer mapping function; Setting encryption and decryption algorithms; The first step is to set the integrity algorithm.

[0088] The functions added by UPF are mapping function from QOS flow to DRB, packet copy and offload function, encryption / decryption, and integrity protection.

[0089] The functionality added by the base station / DU CP is to report information such as channel quality, loading, etc.

[0090] The base station is The base station reports its own resources, for example, base station resources of the connection between the base station and the core network (including the control plane and the user plane connection), to the core network; The base station reports information such as the channel quality and load of the base station / DU to the core network. It is necessary for the core network to exchange information with the base station, for example, to inform the base station of the resources in the core network for the connection between the base station and the core network (including the control plane and user plane connections).

[0091] In another embodiment, the core network includes at least an access mobility management function AMF1, and the control plane CP of the access network includes an AMF2.

[0092] The AMF1 of the core network performs at least one function of the control plane CP of the access network, including radio resource configuration, system information message generation, resource configuration for transmitting system information, paging message generation, and resource configuration for transmitting paging message; The AMF2 of the access network performs at least one of receiving system information and configuration of the system information, receiving a paging message and configuration of the paging message.

[0093] In the future, the network will form one cell free service by joint nodes (e.g., base station, DU), for example, the terminal moves within the range of these nodes, does not feel the cell change, and does not trigger cell handover. Thus, coordination between multiple nodes is required. Therefore, the core network can add the function of several cooperative nodes.

[0094] Different base stations / DUs may have the same configuration and broadcast the same system information, e.g., if the terminal does not sense the change in the base station / DU, there is no need to sense the change in the resource configuration. Different base stations / DUs may send the same paging message, e.g., if the terminal does not sense the change in the base station / DU, there is no need to sense the change in the paging reception. In summary, some functions of the control plane of the base station are elevated to the core network.

[0095] Figure 14 is a schematic architecture diagram (part 2) of a network system based on an Internet of Things terminal in this embodiment. As shown in Figure 14, CP refers to the control plane of the base station / DU, CP refers to the user plane of the base station / DU, and AMF is the control plane of the core network, and includes the functions of system information and paging.

[0096] The functions added by AMF are configuration of radio resources (e.g., air interface), generation of system information messages, configuration of resources (frequency domain and time domain) for transmitting system information, generation of paging messages, and configuration of resources (frequency domain and time domain) for transmitting paging messages.

[0097] The functions added by the base station / DU CP are to receive system information and its configuration, and to receive paging messages and its configuration.

[0098] The base station is The base station reports its own resources, for example, base station resources of the connection between the base station and the core network (including the control plane and the user plane connection), to the core network; The core network notifies the base station of its own resources, for example, resources in the core network of the connection between the base station and the core network (including the control plane and user plane connections); The core network sends a system information message and a resource configuration to the base station; It is necessary to exchange information with the core network, such as the core network sending paging messages and resource configuration to the base station.

[0099] In an embodiment of the present disclosure, there is further provided a computer readable storage medium having a computer program stored thereon, the computer program being configured to perform the steps of any of the method embodiments described above when executed.

[0100] In an exemplary embodiment, the computer-readable storage medium may include, but is not limited to, various media capable of storing computer programs, such as a USB disk, a Read-Only Memory (abbreviated as ROM), a Random Access Memory (abbreviated as RAM), a mobile hard disk, a magnetic disk, or an optical disk.

[0101] In an embodiment of the present disclosure, there is further provided an electronic device including a memory having a computer program stored therein, and a processor configured to execute the computer program to implement the steps of any of the method embodiments described above.

[0102] In an exemplary embodiment, the electronic device may further include a transmission device and an input / output device, the transmission device being connected to the processor and the input / output device being connected to the processor.

[0103] For specific examples of this embodiment, reference can be made to the examples described in the above embodiments and exemplary embodiments, so repeated explanations of this embodiment will be omitted here.

[0104] Obviously, those skilled in the art should understand that each module or each step in the above-described disclosure may be implemented in a general-purpose computing device, may be centralized in a single computing device, or may be distributed across a network of multiple computing devices, may be implemented in program code executable by a computing device, may be stored in a storage device and executed by a computing device, and may in some cases execute steps shown or described in the specification in a different order than in the specification, or may be implemented by making each of them into an integrated circuit module, or by making multiple modules or steps of them into a single integrated circuit. Thus, the present disclosure is not limited to any particular combination of hardware and software.

[0105] The above is merely a preferred embodiment of the present disclosure, and does not limit the present disclosure, and those skilled in the art can make various modifications and changes to the present disclosure. Any modifications, equivalent replacements, improvements, etc. made within the principle of the present disclosure should be included within the protection scope of the present disclosure.

Claims

1. connecting to a core network via a core network-to-access network interface; A wireless access method based on the Internet of Things, comprising: reporting at least one of information of reachability management, authority confirmation result, and authentication result of the Internet of Things terminal to the core network.

2. The step of connecting to a core network via an interface between the core network and an access network includes:

2. The method of claim 1, comprising: based on a control plane entity, accessing the core network through an interface provided by a control plane entity of the core network, and reporting at least one of information on reachability management, authority check results, and authentication results to the core network.

3. The method comprises: sending a request message by a control plane entity of the access network to a control plane entity of the core network to request link establishment, the request message including at least one of a link identifier, a target DN identifier, a target slice identifier, a session management function identifier, a link type, an access network side resource, and a quality of service (QoS) request; 3. The method of claim 2, further comprising: receiving an establishment decision message returned from the core network based on a control plane entity of the access network, the establishment decision message including at least one of a link identifier, a success or failure identifier, and a core network side resource.

4. The method comprises: When the information of the reachability management is location change information, acquiring location change information in which an access network of an Internet of Things terminal is changed; The method of claim 1 , further comprising the step of: reporting the location change information to the core network.

5. The step of reporting the location change information to the core network includes: transmitting the location change information to the core network in a first message; 5. The method of claim 4, further comprising: receiving an execution result returned from the core network by a second message, the execution result including a reception result indicating whether the location change information was successfully received or not.

6. The method comprises: When the reachability management information is increased or decreased tag information or tag information of a reachable terminal, receiving the increased or decreased tag information transmitted from the core network by a third message, and feeding back a reception result of whether the third message is successfully received to the core network by a fourth message; or The method of claim 1, further comprising: receiving a fifth message requesting the core network to report the increased or decreased tag information or the tag information of the reachable terminal; and feeding back the increased or decreased tag information or the tag information of the reachable terminal to the core network by a sixth message.

7. Obtaining information of reachability management of the Internet of Things terminal; and / or performing authority verification on the Internet of Things terminal to obtain an authority verification result; and / or The method of claim 1 , further comprising: performing authentication on the Internet of Things terminal to obtain the authentication result.

8. connecting to the access network via a core network-access network interface; An information processing method based on the Internet of Things, comprising: a step of receiving at least one of information of reachability management information, authority confirmation result, and authentication result of an Internet of Things terminal reported from the access network.

9. The step of providing an interface to an access network includes: The method of claim 8, comprising providing the interface to the access network by a control plane entity of a core network.

10. The method comprises: receiving, by a control plane entity of a core network, a request message sent from a control plane entity of the access network requesting link establishment, the request message including at least one of a link identifier, a target data network DN identifier, a target slice identifier, a session management function identifier, a link type, an access network side resource, and a quality of service (QoS) request; sending a notification message to a user plane entity of the core network after allocating resources for the link by the control plane entity of the core network, and establishing the link by the user plane entity of the core network; 10. The method of claim 9, further comprising: returning an establishment decision message by a control plane entity of the core network to a control plane entity of the access network, the establishment decision message including at least one of a link identifier, a success or failure identifier, and a core network side resource.

11. The method comprises: When the information of the reachability management is location change information, receiving location change information, in which the access network of an Internet of Things terminal is changed, sent from the access network; and notifying a target access network that holds the Internet of Things terminal based on the location change information.

12. The step of receiving location change information indicating that the access network of the Internet of Things terminal is changed, the location change information being transmitted from the access network, includes: receiving the location change information transmitted from the access network via a first message; 12. The method of claim 11, further comprising: returning an execution result to the access network by a second message, the execution result including a reception result of whether the location change information was successfully received or not.

13. The method comprises: If the reachability management information is increased or decreased tag information or tag information of a reachable terminal, transmitting the increased or decreased tag information to the access network through a third message, and receiving a reception result of whether the increased or decreased tag information is successfully received or not, fed back from the access network through a fourth message; or The method of claim 8, further comprising the steps of: sending a fifth message to the access network requesting a report of the increased or decreased tag information or the tag information of the reachable terminal; and receiving the increased or decreased tag information or the tag information of the reachable terminal fed back from the access network by a sixth message.

14. The network includes an access network and a core network, The core network performs billing management for the Internet of Things terminal; A network system based on the Internet of Things, in which the access network accesses the core network via an interface between the core network and the access network, and reports at least one of information on reachability management, authority confirmation results, and authentication results of the Internet of Things terminal to the core network.

15. The core network includes a control plane entity, and the control plane CP of the access network includes an access mobility management function; A control plane entity of the core network provides an interface to the access network and performs charging management for the Internet of Things terminal; The system of claim 14, wherein a control plane entity of the access network accesses the core network via the interface and reports at least one of information of reachability management, authority checking results, and authentication results of the Internet of Things terminal to the core network.

16. The control plane entity of the core network further performs at least one of a slicing function and a session management function; The access network further reports resources of the base station side to the core network, and reports to the core network information on the established, released, or changed links between the core network and the access network based on the terminal, and link information on the successful or failed establishment, release, or change of the links; The system according to claim 15 , wherein the core network notifies the access network of resources on the core network side.

17. When the access network is linked to a data network DN, the user plane of the access network includes a user plane management function; The access mobility management function of the access network further performs at least one of the following: managing a link between the access network and the data network DN; determining an Internet of Things terminal associated with the link; allocating or releasing access network side resources associated with the link; selecting, controlling and configuring a user plane management function, routing data to the corresponding DN; communicating with the core network based on a Dynamic Host Configuration Protocol DHCPv4 or DHCPv6; and reporting data volume; 15. The system of claim 14, wherein the user plane management function of the access network performs at least one of: buffering and checking downlink packets, routing and transmitting data, reporting data volume, linking to the DN, and monitoring packets.

18. When the access networks are multiple, the core network is linked to the multiple access networks respectively, and the user plane UP of the access network includes a user plane management function; The control plane entity of the core network further performs at least one of the following: managing a first link between the core network and a data network DN; managing a second link between the core network and the access network; mapping the first link and the second link; determining copy or offload of packet transmission, and allocating or releasing core network side resources related to the link; selecting and controlling the user plane management function; configuring the user plane management function; routing data to a corresponding DN; communicating with the access network based on DHCPv4 or DHCPv6; and reporting data volume; The control plane entity of the access network further performs at least one of the following: managing a link between the access network and the core network; determining an Internet of Things terminal associated with the link; releasing access network-side resources associated with the link; and selecting and controlling the user plane management function; A user plane management function of the core network performs at least one of the following: buffering downlink packets, routing and transmitting data, generating data volume reports, linking to the DN, monitoring packets, copying packets, and offloading packets; The system of claim 14 , wherein a user plane management function of the access network routes and transmits data.

19. A computer readable storage medium having a computer program stored thereon, the computer program being configured, when executed, to perform the method according to any one of claims 1 to 7 and claims 8 to 13.

20. An electronic device comprising a memory in which a computer program is stored and a processor configured to execute said computer program to perform the method according to any one of claims 1 to 7 and claims 8 to 13.

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