Mobility management method and device

Abstract

Disclosed are a mobility management method and device, belonging to the technical field of communications, the mobility management method of the embodiment of the present application comprising: a first device receiving a first message sent by a second device; the first message is used for indicating the first equipment to initiate a mobility management process, or is used for assisting the first equipment to initiate the mobility management process actively, or the first message is an inventory request message, and the inventory request message is used for initiating the mobility management process; and the first equipment sends a second message used for responding to the first message to the second equipment.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to a mobility management method and device. Background Art

[0002] Ambient power-enabled Internet of Things (A-IoT) is a 3rd Generation Partnership Project (3GPP) IoT technology. A-IoT devices are ultra-low complexity and ultra-low power devices.

[0003] In the existing 3GPP mobility management process, the terminal actively initiates access to perform the registration process, including periodic registration or mobility registration. For passive A-IoT devices, it is impossible to actively initiate access. Therefore, the existing 3GPP mobility process cannot be applied to passive A-IoT devices. Therefore, how to implement mobility management of A-IoT devices is a technical problem that needs to be solved urgently. Summary of the invention

[0004] The embodiments of the present application provide a mobility management method and device, which can solve the problem of how to implement mobility management of A-IoT devices.

[0005] In a first aspect, a mobility management method is provided, including:

[0006] The first device receives a first message sent by the second device; the first message is used to instruct the first device to initiate a mobility management process, or is used to assist the first device to actively initiate a mobility management process, or the first message is an inventory request message, and the inventory request message is used to initiate a mobility management process;

[0007] The first device sends a second message to the second device in response to the first message.

[0008] In a second aspect, a mobility management method is provided, including:

[0009] The second device sends a first message to the first device; the first message is used to instruct the first device to initiate a mobility management process, or is used to assist the first device to actively initiate a mobility management process, or the first message is an inventory request message, and the inventory request message is used to initiate a mobility management process;

[0010] The second device receives a second message sent by the first device in response to the first message.

[0011] In a third aspect, a mobility management device is provided, including:

[0012] A receiving module, configured to receive a first message sent by a second device; the first message is used to instruct the first device to initiate a mobility management process, or is used to assist the first device to actively initiate a mobility management process, or the first message is an inventory request message, and the inventory request message is used to initiate a mobility management process;

[0013] A sending module is used to send a second message used to respond to the first message to the second device.

[0014] In a fourth aspect, a mobility management device is provided, including:

[0015] A sending module, configured to send a first message to a first device; the first message is used to instruct the first device to initiate a mobility management process, or is used to assist the first device to actively initiate a mobility management process, or the first message is an inventory request message, and the inventory request message is used to initiate a mobility management process;

[0016] The receiving module is used to receive a second message sent by the first device to respond to the first message.

[0017] In a fifth aspect, a first device is provided, comprising a processor and a memory, wherein the memory stores a program or instruction that can be executed on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0018] In a sixth aspect, a first device is provided, comprising a processor and a communication interface, wherein the communication interface is used to receive a first message sent by a second device; the first message is used to instruct the first device to initiate a mobility management process, or to assist the first device to actively initiate a mobility management process, or the first message is an inventory request message, and the inventory request message is used to initiate a mobility management process; and a second message is sent to the second device in response to the first message.

[0019] In the seventh aspect, a second device is provided, which includes a processor and a memory, wherein the memory stores a program or instruction that can be executed on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the second aspect are implemented.

[0020] In an eighth aspect, a second device is provided, comprising a processor and a communication interface, wherein the communication interface is used to send a first message to a first device; the first message is used to instruct the first device to initiate a mobility management process, or to assist the first device to actively initiate a mobility management process, or the first message is an inventory request message, and the inventory request message is used to initiate a mobility management process; and a second message sent by the first device in response to the first message is received.

[0021] In a ninth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

[0022] In the tenth aspect, a wireless communication system is provided, including: a first device and a second device, wherein the first device can be used to execute the steps of the method described in the first aspect, and the second device can be used to execute the steps of the method described in the second aspect.

[0023] In the eleventh aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the method described in the first aspect, or to implement the method described in the second aspect.

[0024] In the twelfth aspect, a computer program / program product is provided, wherein the computer program / program product is stored in a storage medium, and the program / program product is executed by at least one processor to implement the steps of the mobility management method as described in the first aspect or the second aspect.

[0025] In an embodiment of the present application, mobility management is implemented through a first message sent by a second device. The first message may be the second device instructing the first device to initiate a mobility management process, or serve as an incentive signal to assist the first device in initiating a mobility management process, or the second device may perform a mobility management process based on an inventory request message to implement mobility management of the A-IoT device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the architecture of a wireless communication system provided in an embodiment of the present application;

[0027] Figure 2 This is one of the flow charts of the mobility management method provided in the embodiment of the present application;

[0028] Figure 3 This is one of the interactive flow diagrams of the mobility management method provided in the embodiment of the present application;

[0029] Figure 4This is one of the flow charts of the mobility management method provided in the embodiment of the present application;

[0030] Figure 5 It is one of the structural diagrams of the mobility management device provided in the embodiment of the present application;

[0031] Figure 6 It is one of the structural diagrams of the mobility management device provided in the embodiment of the present application;

[0032] Figure 7 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application;

[0033] Figure 8 is a schematic diagram of the structure of a terminal in an embodiment of the present application;

[0034] Fig. 9 It is one of the structural diagrams of the network side device in the embodiment of the present application;

[0035] Fig.10 This is the second structural diagram of the network side device of the embodiment of the present application. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0037] The terms "first", "second", etc. of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of one type, and the number of objects is not limited, for example, the first object can be one or more. In addition, "or" in the present application represents at least one of the connected objects. For example, "A or B" covers three schemes, namely, Scheme 1: including A but not including B; Scheme 2: including B but not including A; Scheme 3: including both A and B. The character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0038] The term "indication" in this application can be a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, operations to be performed, or request results in the sent indication; an indirect indication can be understood as the receiver determining the corresponding information according to the indication sent by the sender, or making a judgment and determining the operation to be performed or the request result according to the judgment result.

[0039] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the systems and radio technologies mentioned above as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following descriptions, but these technologies can also be applied to systems other than NR systems, such as the 6th generation (6 th Generation, 6G) communication system.

[0040] Figure 1A block diagram of a wireless communication system applicable to an embodiment of the present application is shown. The wireless communication system includes a terminal 11 and a network side device 12. Among them, the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (Ultra-mobile Personal Computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), an augmented reality (Augmented Reality, AR), a virtual reality (Virtual Reality, VR) device, a robot, a wearable device (Wearable Device), an aircraft (flight vehicle), a vehicle-mounted device (Vehicle User Equipment, VUE), a ship-mounted device, a pedestrian terminal (Pedestrian User Equipment, PUE), a smart home (home appliances with wireless communication functions, such as refrigerators, televisions, washing machines or furniture, etc.), a game console, a personal computer (Personal Computer, PC), a teller machine or a self-service machine and other terminal side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may include an access network device or a core network device, wherein the access network device may also be referred to as a radio access network (Radio Access Network, RAN) device, a radio access network function or a radio access network unit. The access network device may include a base station, a wireless local area network (Wireless Local Area Network, WLAN) access point (Access Point, AP) or a wireless fidelity (Wireless Fidelity, WiFi) node, etc.Among them, the base station may be referred to as a Node B (NB), an evolved Node B (eNB), a next generation Node B (gNB), a New Radio Node B (NR Node B), an access point, a Relay Base Station (RBS), a Serving Base Station (SBS), a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a Home Node B (HNB), a Home Evolved Node B, a Transmission Reception Point (TRP) or other appropriate terms in the field. As long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiments of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0041] The core network equipment may include but is not limited to at least one of the following: core network node, core network function, mobility management entity (Mobility Management Entity, MME), access mobility management function (Access and Mobility Management Function, AMF), session management function (Session Management Function, SMF), user plane function (User Plane Function, UPF), policy control function (Policy Control Function, PCF), policy and charging rules function unit (Policy and Charging Rules Function, PCRF), edge application service discovery function (Edge Application Server Discovery Function, EASDF), unified data management (Unified Data Management, UDM), unified data storage (Unified Data Repository, UDR), home user server (Home Subscriber Server, HSS), centralized network configuration (CNC), network storage function (Network Repository Function, NRF), network exposure function (Network Exposure Function, NEF), local NEF (Local NEF, or L-NEF), binding support function (Binding Support Function, BSF), application function (Application Function, AF), etc. It should be noted that in the embodiments of the present application, only the core network device in the NR system is introduced as an example, and the specific type of the core network device is not limited.

[0042] First, the terms and technical background involved in the embodiments of the present application are introduced:

[0043] 1. Mobility Management

[0044] Mobility management is an essential mechanism for cellular mobile communication systems. It can assist 5G systems in achieving load balancing, provide users with a better experience, and improve the overall performance of the system.

[0045] From the perspective of access network, mobility management is mainly divided into two categories: connected mobility management and non-connected mobility management. In the 5G system, connected mobility management is mainly implemented through the switching and redirection process controlled by the network; non-connected mobility management is mainly implemented through the cell selection and cell reselection process controlled by the terminal.

[0046] From the core network's perspective, the terminal will perform the registration management process:

[0047] 1. Initial registration:

[0048] (1) It is used for the terminal to register with the network and establish relevant contexts for subsequent service acquisition.

[0049] (2) Complete the identification, authentication and authorization process

[0050] 2. Mobility registration:

[0051] (1) Notify the network side device that the terminal has moved out of the current registration area and update the registration area of ​​the terminal in the network side device for terminal reachability management, downlink service paging, etc.

[0052] (2) Update the capabilities and protocol parameters of the terminals in the network side equipment.

[0053] 3. Periodic registration:

[0054] Periodically inform the network that it is still in its current position.

[0055] 2. Ambient IoT

[0056] Ambient IoT, also known as ambient power-enabled Internet of Things (Ambient power-enabled IoT), or A-IoT for short, is an IoT service in which A-IoT devices are powered by energy harvesting. A-IoT devices do not have batteries or have limited energy storage capabilities (for example, using a capacitor). Energy sources for energy harvesting include radio waves, light, motion, heat, or other suitable energy sources. Ambient IoT terminals have ultra-low complexity and ultra-low power consumption.

[0057] The signal transmission method of this type of equipment is:

[0058] 1. It can be a backscattered RF signal for signal transmission; this type of device can also be called an electronic tag, a radio frequency tag (RFID);

[0059] 2. Some active tags have the ability to generate active signals, but in order to achieve low power consumption of the device, it is generally lower than 0dBm, for example, less than or equal to -10dBm.

[0060] Ambient IoT terminals can be classified based on energy source, energy storage capability, passive or active emission, etc. There are three types of devices:

[0061] 1. Device Type A: Passive Device. No energy storage, no independent signal generation / amplification, i.e. backscatter transmission.

[0062] 2. Device Type B: Semi-passive Device. It has energy storage and no independent signal generation, i.e. backscatter transmission. The use of stored energy can include amplification of reflected signals.

[0063] 3. Device Type C: Active Device. It has energy storage and independent signal generation, i.e., active RF components for transmission.

[0064] Backscatter communication refers to the use of radio frequency signals from other devices or the environment to modulate the signal to transmit its own information. Backscatter technology is a passive or low-energy technology. Its technical feature is that it can complete the transmission of its own signal by changing the characteristics of the received environmental radio frequency signal, such as phase or amplitude information, to achieve extremely low power or zero power information transmission.

[0065] 3. A-IoT Data / Service Types

[0066] Device-originated (DO) means that the data flow originates from the A-IoT device; or is transmitted to the A-IoT device. For data flows originating from A-IoT devices, i.e. DO data, it can be further classified into

[0067] Device-originated Autonomous (DO-A), for example, sensors collect and actively report information about the environment, devices, and organisms when necessary.

[0068] Device-originated-device-terminated triggered (DO-DTT) after the device is triggered by the network, such as asset identification, status reporting and tracking, which are all downlink DL triggered reports. The reader collects data from the tag by triggering the inventory program. Since the data is generated / initiated in the IoT device, this service should be considered as a command sent by the reader to trigger the tag to initiate a DO service.

[0069] Device-terminated (DT) indicates that the data stream is transmitted to the A-IoT device.

[0070] The mobility management method provided in the embodiment of the present application is described in detail below through some embodiments and their application scenarios in combination with the accompanying drawings.

[0071] Please refer to Figure 2 The embodiment of the present application provides a mobility management method. The execution subject of the embodiment is a first device. The method includes:

[0072] Step 101: A first device receives a first message sent by a second device; the first message is used to instruct the first device to initiate a mobility management process, or is used to assist the first device to actively initiate a mobility management process, or the first message is an inventory request message, and the inventory request message is used to initiate a mobility management process;

[0073] Specifically, the mobility management process is initiated through the first message. Optionally, the first message can instruct the first device to initiate the mobility management process, or only serve as an incentive signal to assist the first device to initiate the mobility management process on demand. Alternatively, the inventory process can be reused, that is, the mobility management process is initiated through an inventory request message, thereby saving the signaling overhead of mobility management.

[0074] Optionally, the mobility management process includes at least one of the following: initial registration, periodic registration, mobility registration, tracking area update (TAU), handover, redirection, cell selection, cell reselection and radio access network notification area update RNAU.

[0075] Optionally, the first device is an ambient energy enabled Internet of Things (A-IoT) device. Figure 1 The terminal 11 shown in the figure may include a first device, that is, the first device can communicate directly with the network side device 12.

[0076] Optionally, the second device includes at least one of the following: a core network device, an access network device, a user equipment UE or a reader / writer. The user equipment UE or the reader / writer may be Figure 1The terminal 11 shown in the figure, the user equipment UE includes, for example, a mobile phone, a computer, a tablet computer and a wearable device, such as a smart watch, a bracelet, etc. The first device can also be connected to Figure 1 The terminal 11 shown in the figure communicates with the terminal 11, and the terminal 11 can be used as the second device.

[0077] Step 102: The first device sends a second message to the second device in response to the first message.

[0078] Specifically, after receiving the first message, the first device may send a second message to the second device as a response message.

[0079] The method of this embodiment implements mobility management through a first message sent by a second device. The first message may be the second device instructing the first device to initiate a mobility management process, or may serve as an incentive signal to assist the first device in initiating a mobility management process, or the second device may perform a mobility management process based on an inventory request message to implement mobility management of the A-IoT device.

[0080] Optionally, the first message includes at least one of the following:

[0081] The first indication information is used to instruct the second device to initiate a connection process;

[0082] identification information of at least one of the first devices;

[0083] First, location information;

[0084] Registration instruction information, used to instruct at least one first device to perform a registration process;

[0085] Update indication information, used to instruct at least one first device to initiate an update process;

[0086] The first location information includes at least one of the following:

[0087] at least one tracking area identifier; at least one second device identifier; at least one RAN notification area identifier;

[0088] The registration process includes at least one of the following:

[0089] Initial registration process; Periodic registration process; Mobility registration process;

[0090] The update process includes at least one of the following:

[0091] Cell Update; RNAU; Tracking Area Update process.

[0092] Specifically, the first indication information is used to indicate that the first device responds to the first message. Optionally, when the second device initiates a connection process to the first device, the first message may include the first indication information. The initiation of the connection process, for example, includes at least one of the following: the second device initiates data transmission to the first device, the second device sends a paging message to the first device, or the second device requests the first device to send a response message (second message). Optionally, the first indication information is implemented, for example, by device termination DT information. For example, the first device may initiate a mobility management process by sending a second message in response to the first message.

[0093] The identification information of at least one first device is used to identify a first device or a group of first devices. For example, the first device can be uniquely identified in the first network; or, the identification information of at least one first device includes the category information or part of the identification information of the first device, thereby indicating a group of first devices by matching with the identification. The group of first devices can initiate a mobility management process as needed.

[0094] In the above implementation, the second device is supported to initiate a mobility management process for some categories of first devices instead of all first devices, thereby reducing the signaling storm caused by simultaneous communication with all first devices.

[0095] The first location information includes at least one of the following:

[0096] At least one tracking area identifier; one or more second devices (such as network-side devices) form a tracking area, which can support the second device to track the first device by area for reachability management of the first device. Optionally, if the first device moves to a tracking area corresponding to at least one tracking area identifier, based on the tracking area identifier of the tracking area, it is determined whether it is the same as the tracking area identifier last registered by the first device. If it is different from the tracking area last registered by the first device, a mobility registration process is initiated.

[0097] At least one second device identifier; if the first device finds that it has moved to an area where a second device corresponding to at least one second device identifier is located, determine based on the second device identifier of the second device whether it is the same as the second device last registered by the first device; if the second device is different from the second device last registered by the first device, initiate a registration process, that is, the second device can be supported to track the first device at the cell level.

[0098] At least one RAN Notification Area identifier, that is, the second device can be supported to track the first device according to the RAN Notification Area. For example, when the first device moves to a RAN Notification Area corresponding to the at least one RAN Notification Area identifier, a mobility registration process is initiated.

[0099] This embodiment supports the second device to perform mobility management within a specific area based on multiple range levels.

[0100] The registration instruction information is used to instruct the first device to perform a registration process. The registration process includes at least one of the following:

[0101] Initial registration; that is, regardless of the conditions, the first device performs the registration process;

[0102] Periodic registration; refers to the second device periodically instructing the first device to perform a registration process according to a registration timer, wherein the registration timer runs in the second device and the second device controls the start or stop of the registration timer; or, the first device periodically participates in the registration process according to the registration timer, wherein the registration timer runs in the second device and the registration timer is controlled by the first device;

[0103] Mobility registration.

[0104] Regarding the mobility registration, if the first device moves to a tracking area, a mobility registration process is initiated, wherein the tracking area is different from the tracking area where the first device last registered. Or,

[0105] If the first device moves into the range of the second device, a mobility registration process is initiated, wherein the second device is different from the second device that the first device last registered.

[0106] The update indication information is used to initiate an update process, and the update process includes at least one of the following:

[0107] Cell Update; RNAU; Tracking Area Update process.

[0108] For example, after moving to a certain cell, the first device performs a cell update to support the second device to track the first device at the cell level.

[0109] Optionally, the first message is at least one of the following: a paging message, a registration indication message, a selection message;

[0110] In the case where the first message is a paging message, the registration indication information or the update indication information is carried by a paging reason.

[0111] Optionally, the paging reason includes: a reason for initiating a mobility management process, for example, the paging reason carries the characters "mobility management" or "mobility management process".

[0112] In the above implementation, the mobility management process is initiated by the second device, so that the second device can perform unified mobility management on the first device in the area, simplify the requirements of the first device, have greater flexibility, and reduce the signaling overhead caused by the first device actively initiating the mobility process.

[0113] In another embodiment, the first message is used to assist the first device to actively initiate the mobility management process, that is, the first device initiates the mobility management process, which is beneficial for the first device to initiate the mobility management process on demand and reduce the signaling storm caused by the second device communicating with all first devices at the same time.

[0114] Specifically, the second device sends a first message to the first device, and the first message is used as an excitation signal to support the first device to initiate a mobility management process.

[0115] Optionally, the first message includes at least one of the following:

[0116] second indication information, where the second indication information is used to trigger the first device to initiate data transmission;

[0117] A polling signal, used to inquire whether the first device has any signaling to send;

[0118] identification information of at least one of the first devices;

[0119] Second location information;

[0120] The second location information includes at least one of the following:

[0121] At least one tracking area identifier; at least one second device identifier; at least one RAN notification area identifier.

[0122] Specifically, the second indication information is used to trigger the first device to initiate data transmission, that is, the first device can initiate a data transmission process after receiving the second indication information of the second device. In this case, the first device may initiate data transmission or may not initiate data transmission. For example, the second indication information is implemented through DO-DTT information.

[0123] Optionally, the second indication information is only used for passive type A-IoT devices.

[0124] The identification information of at least one first device is used to identify a first device or a group of first devices, that is, this implementation supports the second device to initiate a mobility management process for some categories of first devices instead of all first devices.

[0125] The second location information includes at least one of the following:

[0126] At least one tracking area identifier; for example, when the first device moves to a tracking area corresponding to at least one tracking area identifier, a mobility registration process is initiated. Optionally, the tracking area is different from the last registered tracking area.

[0127] At least one second device identifier; if the first device finds that it has moved to the area where the second device is located, a registration process is initiated. Optionally, the second device is different from the second device registered last time, that is, the second device can be supported to track the first device at the cell level.

[0128] At least one RAN notification area identifier, that is, it can support the second device to track the first device according to the RAN notification area. For example, when the first device moves to a RAN notification area corresponding to the at least one RAN notification area identifier, a mobility registration process is initiated.

[0129] This embodiment supports the second device to perform mobility management within a specific area based on multiple range levels.

[0130] Optionally, the first message is at least one of the following: a paging message, a selection message.

[0131] Optionally, the second message includes at least one of the following:

[0132] Registration request, used to initiate the registration process;

[0133] Update request, used to initiate the update process;

[0134] The registration process includes at least one of the following:

[0135] Periodic registration process; Mobility registration process;

[0136] The updating process includes at least one of the following:

[0137] Cell Update; RNAU; Tracking Area Update process.

[0138] Specifically, the first device sends a second message to the first network, which is used to perform a mobility management process or respond to the first message.

[0139] The registration request in the second message is used to initiate a registration process, including periodic registration or mobility registration.

[0140] If the first device moves to a tracking area, initiating a mobility registration procedure, wherein the tracking area is different from the tracking area where the first device was last registered; or,

[0141] If the first device moves to the coverage area of ​​a second device, a mobility registration process is initiated, wherein the second device is different from the second device last registered by the A-IoT device.

[0142] If the second device instructs the first device to perform a periodic registration process, the first device sends a registration request for the periodic registration process.

[0143] Optionally, the update request is used to initiate a cell update, an RNA update, or a tracking area update, etc.

[0144] It can be understood that when the registration indication included in the first message only includes mobility registration, if the tracking area where the first device is located or the range of the second device is the same as the last registration, the first device may not initiate a registration request or respond to the first message.

[0145] It can be understood that when the identification information of at least one first device in the first message includes the current first device, the current first device responds to the first message.

[0146] Optionally, the second message is at least one of the following: a registration request message, a service request message, or a connection establishment request message; when the second message is a connection establishment request message, the registration request or update request is carried by an establishment reason in the connection establishment request message.

[0147] Specifically, the registration request or update request may be carried by an establishment reason, where the establishment reason includes a reason for initiating a mobility management process, for example, the establishment reason carries the characters "mobility management" or "mobility management process".

[0148] In another embodiment, the first message may be an inventory request message, and the inventory request message is used to initiate a mobility management process;

[0149] Specifically, in this embodiment, the second device obtains the mobility information of the first device by executing an inventory process. The advantage is that the inventory process is reused, simplifying the signaling process of mobility management.

[0150] The second device initiates an inventory process. Optionally, the inventory process includes at least one of the following:

[0151] 1. Periodic inventory process. It is convenient to periodically track the first equipment in the second equipment area.

[0152] 2. A blind inventory process, i.e., an inventory process not targeting a specific first device, is used to inventory the first device in the second device area.

[0153] Optionally, the inventory request message includes at least one of the following:

[0154] The second device identifier, the tracking area identifier, and the first device identifier information; wherein the tracking area identifier may be, for example, an identifier of the tracking area in which the second device is currently located;

[0155] The second message is an inventory response message; the inventory response message includes at least one of the following:

[0156] The first device identifier, the third location information, the periodic registration request, the mobility registration request, and the update request; the update request is used to initiate an update process, and the update process includes at least one of the following: cell update; RNAU; tracking area update process;

[0157] The third location information includes at least one of the following: a tracking area identifier, a cell identifier, an RNA identifier, and a reader / writer identifier, wherein the tracking area identifier may be, for example, an identifier of the tracking area where the first device is currently located.

[0158] Optionally, for a blind inventory process, the first device identification information is identification information of all first devices, or the inventory request message does not include the first device identification information.

[0159] Optionally, the inventory response message includes at least one of the first device identifier, third location information, periodic registration request, mobility registration request, update request, etc. The third location information includes at least one of tracking area identifier, cell identifier, RNA identifier, reader / writer identifier, etc.

[0160] Optionally, for active A-IoT devices, the method can reduce the signaling overhead caused by the A-IoT device actively initiating a mobility process by multiplexing the inventory process.

[0161] In the above implementation, the inventory process is reused to simplify the signaling process of mobility management.

[0162] Optionally, the method further comprises:

[0163] The first device receives a third message sent by the second device;

[0164] The third message includes at least one of the following:

[0165] The third indication information is used to indicate that the first device is registered to the tracking area or the second device; or,

[0166] The fourth indication information is used to indicate that the inventory is successful, or the fourth indication information is confirmation information of the mobility management process.

[0167] Specifically, after receiving the second message sent by the first device, the second device may also send a third message to the first device, where the third message includes at least one of the following:

[0168] The third indication information, also called registration confirmation information, is used to confirm that the first device is registered with the tracking area or the second device;

[0169] The fourth indication information is used to indicate that the inventory is successful, or the fourth indication information is confirmation information of the mobility management process.

[0170] Optionally, the method further comprises:

[0171] If the first device receives the registration confirmation information, a first operation is performed, including at least one of the following:

[0172] Transferring the state of the first device to a registered state;

[0173] The registered fourth location information is stored, where the fourth location information includes at least one of the following: a registered tracking area identifier; a registered RNA identifier; and a registered second device identifier.

[0174] Optionally, the third message is at least one of the following: a registration acceptance message, a service acceptance message, or a connection establishment message;

[0175] Optionally, the method of the above embodiment may be used for all A-IoT devices, or only for passive type A-IoT devices.

[0176] Optionally, the method further comprises:

[0177] When the first device receives the fourth indication information, the first device stores fifth location information, and the fifth location information includes at least one of the following: a registered tracking area identifier; a registered RNA identifier; and a registered second device identifier.

[0178] Specifically, the first device receives fourth indication information sent by the second device, which is used to indicate successful inventory or confirmation of mobility process, and the first device stores fifth location information, such as second device identification or tracking area identification, etc. Optionally, the second device stores location information of the first device.

[0179] It should be noted that the above implementations can be used separately or in combination. For example, the second device first performs a blind inventory process or a mobility management process. Some first devices may fail to successfully participate in the above process due to unreachability. These first devices can initiate a mobility process on their own, thereby supporting mobility management of all first devices.

[0180] Figure 4 This is the second flow chart of the mobility management method provided in the embodiment of the present application. Figure 4 As shown, the mobility management method provided in this embodiment includes:

[0181] Step 201: The second device sends a first message to the first device; the first message is used to instruct the first device to initiate a mobility management process, or to assist the first device to actively initiate a mobility management process, or the first message is an inventory request message, and the inventory request message is used to initiate a mobility management process;

[0182] Step 202: The second device receives a second message sent by the first device in response to the first message.

[0183] Optionally, the mobility management process includes at least one of the following: initial registration, periodic registration, mobility registration, tracking area update TAU, handover, redirection, cell selection, cell reselection and radio access network notification area update RNAU.

[0184] Optionally, the first message includes at least one of the following:

[0185] first indication information, used to instruct the first device to respond to the first message;

[0186] identification information of at least one of the first devices;

[0187] First, location information;

[0188] Registration instruction information, used to instruct at least one of the first devices to perform a registration process;

[0189] Update indication information, used to instruct at least one of the first devices to initiate an update process;

[0190] The first location information includes at least one of the following:

[0191] at least one tracking area identifier; at least one second device identifier; at least one RAN notification area identifier;

[0192] The registration process includes at least one of the following:

[0193] Initial registration process; Periodic registration process; Mobility registration process;

[0194] The updating process includes at least one of the following:

[0195] Cell Update; RNAU; Tracking Area Update process.

[0196] Optionally, the first message is at least one of the following: a paging message, a registration indication message, a selection message;

[0197] In the case where the first message is a paging message, the registration indication information or the update indication information is carried by a paging reason.

[0198] Optionally, the first message includes at least one of the following:

[0199] second indication information, where the second indication information is used to trigger the first device to initiate data transmission;

[0200] A polling signal, used to inquire whether the first device has any signaling to send;

[0201] identification information of at least one of the first devices;

[0202] Second location information;

[0203] The second location information includes at least one of the following:

[0204] At least one tracking area identifier; at least one second device identifier; at least one RAN notification area identifier.

[0205] Optionally, the first message is at least one of the following: a paging message, a selection message.

[0206] Optionally, the second message includes at least one of the following:

[0207] Registration request, used to initiate the registration process;

[0208] Update request, used to initiate the update process;

[0209] The registration process includes at least one of the following:

[0210] Periodic registration process; Mobility registration process;

[0211] The updating process includes at least one of the following:

[0212] Cell Update; RNAU; Tracking Area Update process.

[0213] Optionally, the second message is at least one of the following: a registration request message, a service request message, or a connection establishment request message;

[0214] In the case that the second message is a connection establishment request message, the registration request or update request is carried by an establishment cause in the connection establishment request message.

[0215] Optionally, the inventory request message includes at least one of the following:

[0216] a second device identifier, a tracking area identifier, and at least one identifier of the first device;

[0217] The second message is an inventory response message; the inventory response message includes at least one of the following:

[0218] The first device identifier, the third location information, the periodic registration request, the mobility registration request, and the update request; the update request is used to initiate an update process, and the update process includes at least one of the following: cell update; RNAU; tracking area update process;

[0219] The third location information includes at least one of the following: a tracking area identifier, a cell identifier, an RNA identifier, and a reader / writer identifier.

[0220] Optionally, the method further comprises:

[0221] The second device sends a third message to the first device;

[0222] The third message includes at least one of the following:

[0223] The third indication information is used to indicate that the first device is registered to the tracking area or the second device; or

[0224] The fourth indication information is used to indicate that the inventory is successful, or the fourth indication information is confirmation information of the mobility management process.

[0225] Optionally, the third message is at least one of the following: a registration acceptance message, a service acceptance message, or a connection establishment message;

[0226] Optionally, the inventory process includes at least one of the following:

[0227] Periodic inventory process; blind inventory process.

[0228] Optionally, the second device includes at least one of the following: a core network device, an access network device, a user equipment UE or a reader / writer.

[0229] The specific implementation process and technical effects of the method of this embodiment are similar to those in the first device side method embodiment. For details, please refer to the detailed introduction in the first device side method embodiment, and no further details will be given here.

[0230] The mobility management method provided in the embodiment of the present application may be executed by a mobility management device. In the embodiment of the present application, the mobility management device provided in the embodiment of the present application is described by taking the mobility management device executing the mobility management method as an example.

[0231] Figure 5 FIG. 1 is one of the structural diagrams of the mobility management device provided in the embodiment of the present application. Figure 5 As shown, the mobility management device provided in this embodiment includes:

[0232] The receiving module 110 is configured to receive a first message sent by a second device; the first message is used to instruct the first device to initiate a mobility management process, or is used to assist the first device to actively initiate a mobility management process, or the first message is an inventory request message, and the inventory request message is used to initiate a mobility management process;

[0233] The sending module 120 is used to send a second message used to respond to the first message to the second device.

[0234] Optionally, the mobility management process includes at least one of the following: initial registration, periodic registration, mobility registration, tracking area update TAU, handover, redirection, cell selection, cell reselection and radio access network notification area update RNAU.

[0235] Optionally, the first message includes at least one of the following:

[0236] first indication information, used to instruct the first device to respond to the first message;

[0237] identification information of at least one of the first devices;

[0238] First, location information;

[0239] Registration instruction information, used to instruct at least one of the first devices to perform a registration process;

[0240] Update indication information, used to instruct at least one of the first devices to initiate an update process;

[0241] The first location information includes at least one of the following:

[0242] at least one tracking area identifier; at least one second device identifier; at least one RAN notification area identifier;

[0243] The registration process includes at least one of the following:

[0244] Initial registration process; Periodic registration process; Mobility registration process;

[0245] The updating process includes at least one of the following:

[0246] Cell Update; RNAU; Tracking Area Update process.

[0247] Optionally, the first message is at least one of the following: a paging message, a registration indication message, a selection message;

[0248] In the case where the first message is a paging message, the registration indication information or the update indication information is carried by a paging reason.

[0249] Optionally, the first message includes at least one of the following:

[0250] second indication information, where the second indication information is used to trigger the first device to initiate data transmission;

[0251] A polling signal, used to inquire whether the first device has any signaling to send;

[0252] identification information of at least one of the first devices;

[0253] Second location information;

[0254] The second location information includes at least one of the following:

[0255] At least one tracking area identifier; at least one second device identifier; at least one RAN notification area identifier.

[0256] Optionally, the first message is at least one of the following: a paging message, a selection message.

[0257] Optionally, the second message includes at least one of the following:

[0258] Registration request, used to initiate the registration process;

[0259] Update request, used to initiate the update process;

[0260] The registration process includes at least one of the following:

[0261] Periodic registration process; Mobility registration process;

[0262] The updating process includes at least one of the following:

[0263] Cell Update; RNAU; Tracking Area Update process.

[0264] Optionally, the second message is at least one of the following: a registration request message, a service request message, or a connection establishment request message;

[0265] In the case that the second message is a connection establishment request message, the registration request or update request is carried by an establishment cause in the connection establishment request message.

[0266] Optionally, the inventory request message includes at least one of the following:

[0267] a second device identifier, a tracking area identifier, and at least one identifier of the first device;

[0268] The second message is an inventory response message; the inventory response message includes at least one of the following:

[0269] The first device identifier, the third location information, the periodic registration request, the mobility registration request, and the update request; the update request is used to initiate an update process, and the update process includes at least one of the following: cell update; RNAU; tracking area update process;

[0270] The third location information includes at least one of the following: a tracking area identifier, a cell identifier, an RNA identifier, and a reader / writer identifier.

[0271] Optionally, the receiving module 110 is further configured to:

[0272] receiving a third message sent by the second device;

[0273] The third message includes at least one of the following:

[0274] The third indication information is used to indicate that the first device is registered to the tracking area or the second device; or

[0275] The fourth indication information is used to indicate that the inventory is successful, or the fourth indication information is confirmation information of the mobility management process.

[0276] Optionally, the device further includes: a processing module, configured to:

[0277] When the first device receives the third indication information, performing a first operation, where the first operation includes at least one of the following:

[0278] Setting the state of the first device to a registered state;

[0279] The registered fourth location information is stored, where the fourth location information includes at least one of the following: a registered tracking area identifier; a registered RNA identifier; and a registered second device identifier.

[0280] Optionally, the third message is at least one of the following: a registration acceptance message, a service acceptance message, or a connection establishment message;

[0281] Optionally, the processing module is also used to

[0282] When the first device receives the fourth indication information, fifth location information is stored, and the fifth location information includes at least one of the following: a registered tracking area identifier; a registered RNA identifier; and a registered second device identifier.

[0283] Optionally, the inventory process includes at least one of the following:

[0284] Periodic inventory process; blind inventory process.

[0285] Optionally, the second device includes at least one of the following: a core network device, an access network device, a user equipment UE or a reader / writer.

[0286] Optionally, the first device is an active type A-IoT device, or a passive type A-IoT device.

[0287] The device of this embodiment can be used to execute each process in the aforementioned first device side method embodiment. Its specific implementation process and technical effects are similar to those in the first device side method embodiment. For details, please refer to the detailed introduction in the first device side method embodiment, which will not be repeated here.

[0288] Figure 6 This is the second structural diagram of the mobility management device provided in the embodiment of the present application. Figure 6 As shown, the mobility management device provided in this embodiment includes:

[0289] The sending module 210 is used to send a first message to the first device; the first message is used to instruct the first device to initiate a mobility management process, or to assist the first device to actively initiate a mobility management process, or the first message is an inventory request message, and the inventory request message is used to initiate a mobility management process;

[0290] The receiving module 220 is configured to receive a second message sent by the first device in response to the first message.

[0291] Optionally, the mobility management process includes at least one of the following: initial registration, periodic registration, mobility registration, tracking area update TAU, handover, redirection, cell selection, cell reselection and radio access network notification area update RNAU.

[0292] Optionally, the first message includes at least one of the following:

[0293] first indication information, used to instruct the first device to respond to the first message;

[0294] identification information of at least one of the first devices;

[0295] First, location information;

[0296] Registration instruction information, used to instruct at least one of the first devices to perform a registration process;

[0297] Update indication information, used to instruct at least one of the first devices to initiate an update process;

[0298] The first location information includes at least one of the following:

[0299] at least one tracking area identifier; at least one second device identifier; at least one RAN notification area identifier;

[0300] The registration process includes at least one of the following:

[0301] Initial registration process; Periodic registration process; Mobility registration process;

[0302] The updating process includes at least one of the following:

[0303] Cell Update; RNAU; Tracking Area Update process.

[0304] Optionally, the first message is at least one of the following: a paging message, a registration indication message, a selection message;

[0305] In the case where the first message is a paging message, the registration indication information or the update indication information is carried by a paging reason.

[0306] Optionally, the first message includes at least one of the following:

[0307] second indication information, where the second indication information is used to trigger the first device to initiate data transmission;

[0308] A polling signal, used to inquire whether the first device has any signaling to send;

[0309] identification information of at least one of the first devices;

[0310] Second location information;

[0311] The second location information includes at least one of the following:

[0312] At least one tracking area identifier; at least one second device identifier; at least one RAN notification area identifier.

[0313] Optionally, the first message is at least one of the following: a paging message, a selection message.

[0314] Optionally, the second message includes at least one of the following:

[0315] Registration request, used to initiate the registration process;

[0316] Update request, used to initiate the update process;

[0317] The registration process includes at least one of the following:

[0318] Periodic registration process; Mobility registration process;

[0319] The updating process includes at least one of the following:

[0320] Cell Update; RNAU; Tracking Area Update process.

[0321] Optionally, the second message is at least one of the following: a registration request message, a service request message, or a connection establishment request message;

[0322] In the case that the second message is a connection establishment request message, the registration request or update request is carried by an establishment cause in the connection establishment request message.

[0323] Optionally, the inventory request message includes at least one of the following:

[0324] a second device identifier, a tracking area identifier, and at least one identifier of the first device;

[0325] The second message is an inventory response message; the inventory response message includes at least one of the following:

[0326] The first device identifier, the third location information, the periodic registration request, the mobility registration request, and the update request; the update request is used to initiate an update process, and the update process includes at least one of the following: cell update; RNAU; tracking area update process;

[0327] The third location information includes at least one of the following: a tracking area identifier, a cell identifier, an RNA identifier, and a reader / writer identifier.

[0328] Optionally, the sending module 210 is further configured to:

[0329] Sending a third message to the first device;

[0330] The third message includes at least one of the following:

[0331] The third indication information is used to indicate that the first device is registered to the tracking area or the second device; or

[0332] The fourth indication information is used to indicate that the inventory is successful, or the fourth indication information is confirmation information of the mobility management process.

[0333] Optionally, the third message is at least one of the following: a registration acceptance message, a service acceptance message, or a connection establishment message;

[0334] Optionally, the inventory process includes at least one of the following:

[0335] Periodic inventory process; blind inventory process.

[0336] Optionally, the second device includes at least one of the following: a core network device, an access network device, a user equipment UE or a reader / writer.

[0337] The device of this embodiment can be used to execute the method of any one of the embodiments in the aforementioned second device side method embodiment. Its specific implementation process and technical effects are similar to those in the second device side method embodiment. For details, please refer to the detailed introduction in the second device side method embodiment, which will not be repeated here.

[0338] The mobility management device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices other than a terminal. For example, the terminal may include but is not limited to the types of the terminal 11 listed above, and other devices may be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.

[0339] The mobility management device provided in the embodiment of the present application can achieve Figures 2 to 4 The various processes implemented by the method embodiment and achieving the same technical effect are not described here to avoid repetition.

[0340] like Figure 7 As shown, the embodiment of the present application further provides a communication device 700, including a processor 701 and a memory 702, and the memory 702 stores a program or instruction that can be run on the processor 701. For example, when the communication device 700 is a terminal, the program or instruction is executed by the processor 701 to implement the various steps of the above-mentioned mobility management method embodiment, and can achieve the same technical effect. When the communication device 700 is a network side device, the program or instruction is executed by the processor 701 to implement the various steps of the above-mentioned mobility management method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0341] The embodiment of the present application also provides a terminal, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the following Figure 4 The steps in the method embodiment shown. This terminal embodiment corresponds to the second device side method embodiment described above, and each implementation process and implementation method of the above method embodiment can be applied to this terminal embodiment and can achieve the same technical effect. Specifically, Figure 8 The hardware structure diagram of a terminal for implementing an embodiment of the present application is shown in FIG. The terminal 800 includes, but is not limited to, at least some of the components of a radio frequency unit 801, a network module 802, an audio output unit 803, an input unit 804, a sensor 805, a display unit 806, a user input unit 807, an interface unit 808, a memory 809, and a processor 810.

[0342] Those skilled in the art will appreciate that the terminal 800 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 810 through a power management system, thereby implementing functions such as managing charging, discharging, and power consumption management through the power management system. Figure 8 The terminal structure shown in the figure does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be described in detail here.

[0343] It should be understood that in the embodiment of the present application, the input unit 804 may include a graphics processing unit (GPU) 8041 and a microphone 8042, and the graphics processor 8041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 806 may include a display panel 8061, and the display panel 8061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 807 includes a touch panel 8071 and at least one of other input devices 8072. The touch panel 8071 is also called a touch screen. The touch panel 8071 may include two parts: a touch detection device and a touch controller. Other input devices 8072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0344] In the embodiment of the present application, after receiving downlink data from the network side device, the radio frequency unit 801 can transmit the data to the processor 810 for processing; in addition, the radio frequency unit 801 can send uplink data to the network side device. Generally, the radio frequency unit 801 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0345] The memory 809 can be used to store software programs or instructions and various data. The memory 809 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 809 may include a volatile memory or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM) and a direct memory bus random access memory (DRRAM). The memory 809 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0346] The processor 810 may include one or more processing units; optionally, the processor 810 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 810.

[0347] The processor 810 is used to

[0348] The radio frequency unit 801 is used to send a first message to the first device; the first message is used to instruct the first device to initiate a mobility management process, or to assist the first device to actively initiate a mobility management process, or the first message is an inventory request message, and the inventory request message is used to initiate a mobility management process;

[0349] A second message sent by the first device in response to the first message is received.

[0350] Optionally, the mobility management process includes at least one of the following: initial registration, periodic registration, mobility registration, tracking area update TAU, handover, redirection, cell selection, cell reselection and radio access network notification area update RNAU.

[0351] Optionally, the first message includes at least one of the following:

[0352] first indication information, used to instruct the first device to respond to the first message;

[0353] identification information of at least one of the first devices;

[0354] First, location information;

[0355] Registration instruction information, used to instruct at least one of the first devices to perform a registration process;

[0356] Update indication information, used to instruct at least one of the first devices to initiate an update process;

[0357] The first location information includes at least one of the following:

[0358] at least one tracking area identifier; at least one second device identifier; at least one RAN notification area identifier;

[0359] The registration process includes at least one of the following:

[0360] Initial registration process; Periodic registration process; Mobility registration process;

[0361] The updating process includes at least one of the following:

[0362] Cell Update; RNAU; Tracking Area Update process.

[0363] Optionally, the first message is at least one of the following: a paging message, a registration indication message, a selection message;

[0364] In the case where the first message is a paging message, the registration indication information or the update indication information is carried by a paging reason.

[0365] Optionally, the first message includes at least one of the following:

[0366] second indication information, where the second indication information is used to trigger the first device to initiate data transmission;

[0367] A polling signal, used to inquire whether the first device has any signaling to send;

[0368] identification information of at least one of the first devices;

[0369] Second location information;

[0370] The second location information includes at least one of the following:

[0371] At least one tracking area identifier; at least one second device identifier; at least one RAN notification area identifier.

[0372] Optionally, the first message is at least one of the following: a paging message, a selection message.

[0373] Optionally, the second message includes at least one of the following:

[0374] Registration request, used to initiate the registration process;

[0375] Update request, used to initiate the update process;

[0376] The registration process includes at least one of the following:

[0377] Periodic registration process; Mobility registration process;

[0378] The updating process includes at least one of the following:

[0379] Cell Update; RNAU; Tracking Area Update process.

[0380] Optionally, the second message is at least one of the following: a registration request message, a service request message, or a connection establishment request message;

[0381] In the case that the second message is a connection establishment request message, the registration request or update request is carried by an establishment cause in the connection establishment request message.

[0382] Optionally, the inventory request message includes at least one of the following:

[0383] a second device identifier, a tracking area identifier, and at least one identifier of the first device;

[0384] The second message is an inventory response message; the inventory response message includes at least one of the following:

[0385] The first device identifier, the third location information, the periodic registration request, the mobility registration request, and the update request; the update request is used to initiate an update process, and the update process includes at least one of the following: cell update; RNAU; tracking area update process;

[0386] The third location information includes at least one of the following: a tracking area identifier, a cell identifier, an RNA identifier, and a reader / writer identifier.

[0387] Optionally, the radio frequency unit 801 is further used for:

[0388] Sending a third message to the first device;

[0389] The third message includes at least one of the following:

[0390] The third indication information is used to indicate that the first device is registered to the tracking area or the second device; or

[0391] The fourth indication information is used to indicate that the inventory is successful, or the fourth indication information is confirmation information of the mobility management process.

[0392] Optionally, the third message is at least one of the following: a registration acceptance message, a service acceptance message, or a connection establishment message;

[0393] Optionally, the inventory process includes at least one of the following:

[0394] Periodic inventory process; blind inventory process.

[0395] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the second device side method embodiment, and achieve the same or corresponding technical effect. To avoid repetition, it will not be repeated here.

[0396] The embodiment of the present application also provides a network side device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the following Figure 4 The steps of the method embodiment shown. The network side device embodiment corresponds to the second device side method embodiment described above, and each implementation process and implementation mode of the above method embodiment can be applied to the second device side embodiment and can achieve the same technical effect.

[0397] Specifically, the embodiment of the present application also provides a network side device. Fig. 9 As shown, the network side device 900 includes: an antenna 91, a radio frequency device 92, a baseband device 93, a processor 94 and a memory 95. The antenna 91 is connected to the radio frequency device 92. In the uplink direction, the radio frequency device 92 receives information through the antenna 91 and sends the received information to the baseband device 93 for processing. In the downlink direction, the baseband device 93 processes the information to be sent and sends it to the radio frequency device 92. The radio frequency device 92 processes the received information and sends it out through the antenna 91.

[0398] The method executed by the network-side device in the above embodiment may be implemented in the baseband device 93, which includes a baseband processor.

[0399] The baseband device 93 may include, for example, at least one baseband board on which a plurality of chips are arranged. Fig. 9 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 95 through a bus interface to call the program in the memory 95 to execute the network device operations shown in the above method embodiment.

[0400] The network side device may further include a network interface 96, which is, for example, a Common Public Radio Interface (CPRI).

[0401] Specifically, the network side device 900 of the embodiment of the present application further includes: instructions or programs stored in the memory 95 and executable on the processor 94, and the processor 94 calls the instructions or programs in the memory 95 to execute. Figure 6 The methods executed by the modules shown achieve the same technical effects, and therefore will not be described here in detail to avoid repetition.

[0402] Specifically, the embodiment of the present application also provides a network side device. Fig.10 As shown, the network side device 1000 includes: a processor 1001, a network interface 1002 and a memory 1003. The network interface 1002 is, for example, a common public radio interface (CPRI).

[0403] Specifically, the network side device 1000 of the embodiment of the present application further includes: an instruction or program stored in the memory 1003 and executable on the processor 1001, and the processor 1001 calls the instruction or program in the memory 1003 to execute Figure 6 The methods executed by the modules shown achieve the same technical effects, and therefore will not be described here in detail to avoid repetition.

[0404] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned mobility management method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0405] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0406] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned mobility management method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0407] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0408] The embodiments of the present application further provide a computer program / program product, which is stored in a storage medium, and is executed by at least one processor to implement the various processes of the above-mentioned mobility management method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0409] An embodiment of the present application also provides a communication system, including: a first device and a second device, wherein the first device can be used to execute each step of the mobility management method as described above, and the second device can be used to execute each step of the mobility management method as described above.

[0410] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0411] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general hardware platform, and of course, can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, disk, CD, etc.), including several instructions to enable a terminal or a network-side device to execute the methods described in each embodiment of the present application.

[0412] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of the present application and the scope of protection of the claims, and these implementation methods are all within the protection of the present application.

Claims

1. A mobility management method, characterized in that: include: The first device receives a first message sent by the second device; The first message is used to instruct the first device to initiate a mobility management process, or is used to assist the first device to actively initiate a mobility management process, or the first message is an inventory request message, and the inventory request message is used to initiate a mobility management process; The first device sends a second message to the second device in response to the first message.

2. The mobility management method according to claim 1, characterized in that: The mobility management process includes at least one of the following: initial registration, periodic registration, mobility registration, tracking area update TAU, handover, redirection, cell selection, cell reselection and radio access network notification area update RNAU.

3. The mobility management method according to claim 1 or 2, characterized in that: The first message includes at least one of the following: first indication information, used to instruct the first device to respond to the first message; identification information of at least one of the first devices; First, location information; Registration instruction information, used to instruct at least one of the first devices to perform a registration process; Update indication information, used to instruct at least one of the first devices to initiate an update process; The first location information includes at least one of the following: at least one tracking area identifier; at least one second device identifier; at least one radio access network RAN ​​notification area identifier; The registration process includes at least one of the following: Initial registration process; Periodic registration process; Mobility registration process; The updating process includes at least one of the following: Cell update; RNAU; Tracking area update TAU process.

4. The mobility management method according to claim 3, characterized in that: The first message is at least one of the following: a paging message, a registration indication message, and a selection message; In the case where the first message is a paging message, the registration indication information or the update indication information is carried by a paging reason.

5. The mobility management method according to claim 1 or 2, characterized in that: The first message includes at least one of the following: second indication information, where the second indication information is used to trigger the first device to initiate data transmission; A polling signal, used to inquire whether the first device has any signaling to send; identification information of at least one of the first devices; Second location information; The second location information includes at least one of the following: At least one tracking area identifier; at least one second device identifier; at least one RAN notification area identifier.

6. The mobility management method according to claim 5, characterized in that: The first message is at least one of the following: a paging message, a selection message.

7. The mobility management method according to any one of claims 1 to 6, characterized in that: The second message includes at least one of the following: Registration request, used to initiate the registration process; Update request, used to initiate the update process; The registration process includes at least one of the following: Periodic registration process; Mobility registration process; The updating process includes at least one of the following: Cell Update; RNAU; Tracking Area Update process.

8. The mobility management method according to claim 7, characterized in that: The second message is at least one of the following: a registration request message, a service request message, or a connection establishment request message; In the case that the second message is a connection establishment request message, the registration request is carried by the establishment reason in the connection establishment request message.

9. The mobility management method according to claim 1 or 2, characterized in that: The inventory request message includes at least one of the following: a second device identifier, a tracking area identifier, and at least one identifier of the first device; The second message is an inventory response message; the inventory response message includes at least one of the following: The first device identifier, the third location information, the periodic registration request, the mobility registration request, and the update request; the update request is used to initiate an update process, and the update process includes at least one of the following: cell update; RNAU; tracking area update process; The third location information includes at least one of the following: a tracking area identifier, a cell identifier, an RNA identifier, and a reader / writer identifier.

10. The mobility management method according to any one of claims 1 to 9, characterized in that: The method further comprises: The first device receives a third message sent by the second device; The third message includes at least one of the following: The third indication information is used to indicate that the first device is registered to the tracking area or the second device; or, The fourth indication information is used to indicate that the inventory is successful, or the fourth indication information is confirmation information of the mobility management process.

11. The mobility management method according to claim 10, characterized in that: The method further comprises: When the first device receives the third indication information, the first device performs a first operation, where the first operation includes at least one of the following: Setting the state of the first device to a registered state; The registered fourth location information is stored, where the fourth location information includes at least one of the following: a registered tracking area identifier; a registered RNA identifier; and a registered second device identifier.

12. The mobility management method according to claim 10 or 11, characterized in that: The third message is at least one of the following: a registration acceptance message, a service acceptance message, or a connection establishment message.

13. The mobility management method according to claim 10, characterized in that: The method further comprises: When the first device receives the fourth indication information, the first device stores fifth location information, and the fifth location information includes at least one of the following: a registered tracking area identifier; a registered RNA identifier; and a registered second device identifier.

14. The mobility management method according to any one of claims 1 to 13, characterized in that: The inventory process includes at least one of the following: Periodic inventory process; blind inventory process.

15. The mobility management method according to any one of claims 1 to 14, characterized in that: The second device includes at least one of the following: a core network device, an access network device, a user equipment UE or a reader / writer.

16. The mobility management method according to any one of claims 1 to 15, characterized in that: The first device is an ambient energy enabled Internet of Things A-IoT device, and the A-IoT device includes an active type A-IoT device or a passive type A-IoT device.

17. A mobility management method, characterized in that: include: The second device sends a first message to the first device; The first message is used to instruct the first device to initiate a mobility management process, or is used to assist the first device to actively initiate a mobility management process, or the first message is an inventory request message, and the inventory request message is used to initiate a mobility management process; The second device receives a second message sent by the first device in response to the first message.

18. The mobility management method according to claim 17, characterized in that: The mobility management process includes at least one of the following: initial registration, periodic registration, mobility registration, tracking area update TAU, handover, redirection, cell selection, cell reselection and radio access network notification area update RNAU.

19. The mobility management method according to claim 17 or 18, characterized in that: The first message includes at least one of the following: first indication information, used to instruct the first device to respond to the first message; identification information of at least one of the first devices; First, location information; Registration instruction information, used to instruct at least one of the first devices to perform a registration process; Update indication information, used to instruct at least one of the first devices to initiate an update process; The first location information includes at least one of the following: at least one tracking area identifier; at least one second device identifier; at least one RAN notification area identifier; The registration process includes at least one of the following: Initial registration process; Periodic registration process; Mobility registration process; The updating process includes at least one of the following: Cell update; RNAU; Tracking area update TAU process.

20. The mobility management method according to claim 19, characterized in that: The first message is at least one of the following: a paging message, a registration indication message, and a selection message; In the case where the first message is a paging message, the registration indication information or the update indication information is carried by a paging reason.

21. The mobility management method according to claim 17 or 18, characterized in that: The first message includes at least one of the following: second indication information, where the second indication information is used to trigger the first device to initiate data transmission; A polling signal, used to inquire whether the first device has any signaling to send; identification information of at least one of the first devices; Second location information; The second location information includes at least one of the following: At least one tracking area identifier; at least one second device identifier; at least one RAN notification area identifier.

22. The mobility management method according to claim 21, characterized in that: The first message is at least one of the following: a paging message, a selection message.

23. The mobility management method according to any one of claims 17 to 22, characterized in that: The second message includes at least one of the following: Registration request, used to initiate the registration process; Update request, used to initiate the update process; The registration process includes at least one of the following: Periodic registration process; Mobility registration process; The updating process includes at least one of the following: Cell Update; RNAU; Tracking Area Update process.

24. The mobility management method according to claim 23, characterized in that: The second message is at least one of the following: a registration request message, a service request message, or a connection establishment request message; In the case that the second message is a connection establishment request message, the registration request or update request is carried by an establishment cause in the connection establishment request message.

25. The mobility management method according to claim 17 or 18, characterized in that: The inventory request message includes at least one of the following: a second device identifier, a tracking area identifier, and at least one identifier of the first device; The second message is an inventory response message; the inventory response message includes at least one of the following: The first device identifier, the third location information, the periodic registration request, the mobility registration request, and the update request; the update request is used to initiate an update process, and the update process includes at least one of the following: cell update; RNAU; tracking area update process; The third location information includes at least one of the following: a tracking area identifier, a cell identifier, an RNA identifier, and a reader / writer identifier.

26. The mobility management method according to any one of claims 17 to 25, characterized in that: The method further comprises: The second device sends a third message to the first device; The third message includes at least one of the following: The third indication information is used to indicate that the first device is registered to the tracking area or the second device; or, The fourth indication information is used to indicate that the inventory is successful, or the fourth indication information is confirmation information of the mobility management process.

27. The mobility management method according to claim 26, characterized in that: The third message is at least one of the following: a registration acceptance message, a service acceptance message, or a connection establishment message.

28. The mobility management method according to any one of claims 17 to 27, characterized in that: The inventory process includes at least one of the following: Periodic inventory process; blind inventory process.

29. The mobility management method according to any one of claims 17 to 28, characterized in that: The second device includes at least one of the following: a core network device, an access network device, a user equipment UE or a reader / writer.

30. The mobility management method according to any one of claims 17 to 29, characterized in that: The first device is an ambient energy enabled Internet of Things A-IoT device, and the A-IoT device includes an active type A-IoT device or a passive type A-IoT device.

31. A mobility management device, characterized in that: include: A receiving module, configured to receive a first message sent by a second device; The first message is used to instruct the first device to initiate a mobility management process, or is used to assist the first device to actively initiate a mobility management process, or the first message is an inventory request message, and the inventory request message is used to initiate a mobility management process; A sending module is used to send a second message used to respond to the first message to the second device.

32. A mobility management device, characterized in that: include: A sending module, configured to send a first message to a first device; The first message is used to instruct the first device to initiate a mobility management process, or is used to assist the first device to actively initiate a mobility management process, or the first message is an inventory request message, and the inventory request message is used to initiate a mobility management process; The receiving module is used to receive a second message sent by the first device to respond to the first message.

33. A first device, characterized in that: It comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the mobility management method according to any one of claims 1 to 16 are implemented.

34. A second device, characterized in that: It comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the mobility management method according to any one of claims 17 to 30 are implemented.

35. A readable storage medium, characterized in that: The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, it implements the mobility management method according to any one of claims 1 to 16, or implements the steps of the mobility management method according to any one of claims 17 to 30.

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