Terminal mobility management method and device, electronic equipment and computer program product

Abstract

The invention relates to the technical field of wireless communication, and particularly provides a terminal mobility management method and device, electronic equipment and a computer program product. The method comprises the steps that interaction generated by a first network and / or a second network due to mobility of a terminal node is managed, the first network comprises a short-distance communication network, and the first network comprises at least one of the terminal node, a first node, a second node and a third node; the second network comprises a wide area communication network, and the second network is at least one of a fourth node and a fifth node. The invention provides a terminal mobility management method which can be applied to converged communication of a cellular network and a different-system short-distance wireless network, and can be used for realizing the convergence communication of the cellular network and the different-system short-distance wireless network through zero-interruption and gapless mobility switching control of a terminal node and a switching state synchronization mechanism between heterogeneous networks. The synchronization signaling overhead between the first node and the second node of the short-distance wireless network is reduced, the complexity of heterogeneous system design is reduced, and the problem of heterogeneous network logic relation splitting is solved.

Description

Technical Field

[0001] The present disclosure relates to the field of wireless communication technology, and in particular to a terminal mobility management method, device, electronic device and computer program product. Background Art

[0002] With the automation upgrade of smart factories, automated equipment (such as mobile robots) is deployed exponentially more densely in workshops, which has put forward new demands on wireless local area networks (WLAN, or short-range communication domain, short-range wireless network) in scenarios such as mobile robot collaboration, mobile robot and production line collaboration, and short-range positioning.

[0003] However, traditional WLAN (e.g. industrial Wi-Fi) is not sufficient to meet the above requirements in terms of latency, reliability, and continuous coverage. Therefore, the combination of 5G network and short-range wireless network for layered and domain-based converged networking is an effective trend to improve the equipment coordination efficiency and production automation level in the factory. However, the following problems still exist:

[0004] 1) In a WLAN environment, the network interruption time of the wireless access point (AP) that controls the mobility switching of wireless terminals (stations, STAs) is generally around 2 seconds. Although the service is not disconnected, there will be obvious lags, which cannot well support mobile robots to perform faster continuous switching (for example: reliable switching at the millisecond level).

[0005] 2) The existing technology uses STA-led or AP-led methods to trigger the switching of access points, that is, the short-range communication domain implements the admission analysis and switching control of STAs during the mobile switching process through each leaf access node (i.e., AP). In order to achieve the purpose of uninterrupted and disconnected switching process, each leaf access node must maintain real-time switching status information synchronization with leaf access nodes in other areas through wireless controller (Access Controller, AC) relay forwarding, which leads to a large amount of synchronization frame overhead in the system, which is not suitable for scenarios with dense STA deployment and fast movement.

[0006] 3) The current short-range wireless network and the wide-area cellular network are heterogeneous networks. The cloud AC deployed on the 5G network side cannot perceive the node status, real-time strategy and other information of the AP on the heterogeneous short-range wireless network side, and cannot perform higher-level intelligent scheduling and management of heterogeneous computing resources at the field level. Summary of the invention

[0007] The present disclosure is proposed in view of the above problems. The present disclosure provides a terminal mobility management method, device, electronic device and computer program product.

[0008] According to one aspect of the present disclosure, a terminal mobility management method is provided, which is applied to a first node, and the method includes: managing the interaction between the first network and / or the second network due to the mobility of the terminal node, wherein the first network includes a short-range communication network, and the first network includes at least one of the following: a terminal node, a first node, a second node, and a third node; the second network includes a wide area communication network, and the second network includes at least one of the following: a fourth node and a fifth node.

[0009] In addition, according to a terminal mobility management method according to one aspect of the present disclosure, managing the interaction between the first network and / or the second network due to the mobility of the terminal node includes: managing the interaction between the second node and the third node in the first network due to the mobility of the terminal node; and / or managing the interaction between the first network and the second network due to the mobility of the terminal node.

[0010] In addition, according to an aspect of the present disclosure, a terminal mobility management method, wherein managing the interaction between a second node and a third node in a first network due to the mobility of the terminal node includes: receiving a first message sent by the second node, wherein the first message is used to request a switch and the first message includes first information; based on the first information and a preset threshold, determining whether to perform the switch; and in the case of determining to perform the switch, sending a second message to the third node, wherein the second message is used to indicate the switch and the second message includes second information.

[0011] In addition, according to an aspect of the terminal mobility management method of the present disclosure, managing the interaction between the second node and the third node in the first network due to the mobility of the terminal node also includes: determining the second information based on the first information and the switching resource preset strategy.

[0012] In addition, according to an aspect of the present disclosure, a terminal mobility management method, wherein managing the interaction between a second node and a third node in a first network due to the mobility of the terminal node, also includes: receiving a third message sent by the second node, wherein the third message is used to synchronize the status information of the second node; receiving a fourth message sent by the third node, wherein the fourth message is used to synchronize the status information of the third node; receiving a fifth message sent by the third node, wherein the fifth message is used to synchronize that the terminal node has switched to the third node.

[0013] In addition, according to an aspect of the present disclosure, a terminal mobility management method, wherein managing the interaction between the first network and the second network due to the mobility of the terminal node includes: receiving a sixth message sent by a fifth node or via a fourth node, the sixth message being used to indicate a switching strategy.

[0014] In addition, according to an aspect of the present disclosure, a terminal mobility management method, wherein managing the interaction between the first network and the second network due to the mobility of the terminal node, also includes: sending a seventh message to the fifth node or to the fifth node via the fourth node, wherein the seventh message is used to synchronize the status information of the second node; sending an eighth message to the fifth node or to the fifth node via the fourth node, wherein the eighth message is used to synchronize that the terminal node has switched to the third node.

[0015] In addition, according to a terminal mobility management method according to one aspect of the present disclosure, the first information includes measurement-related information; and the second information includes switching resource-related information.

[0016] In addition, according to one aspect of the terminal mobility management method of the present disclosure, the first node includes: a network control node in a first network; the second node includes: an access node of the current terminal node in the first network; the third node includes: an access node of the terminal node in the first network after switching; the fourth node includes: an access node in the second network; the fifth node includes: a network control node in the second network.

[0017] According to another aspect of the present disclosure, a terminal mobility management method is provided, which is applied to a third node, and the method includes: in a case of determining to perform a switch, receiving a second message sent by a first node, wherein the second message is used to indicate the switch and the second message includes second information; based on the second message, sending a ninth message to the second node, wherein the ninth message includes the second information.

[0018] In addition, according to a terminal mobility management method according to one aspect of the present disclosure, the method also includes: receiving a tenth message sent by the second node, wherein the tenth message is used to indicate the progress of data transmission; based on the tenth message, sending a fourth message to the first node, wherein the fourth message is used to synchronize the status information of the third node.

[0019] In addition, according to a terminal mobility management method according to one aspect of the present disclosure, the method also includes: receiving an eleventh message sent by the terminal node and establishing a link, wherein the eleventh message is used to request access to a third node; sending a fifth message to the first node, wherein the fifth message is used to synchronize the terminal node to have switched to the third node.

[0020] In addition, according to a terminal mobility management method according to one aspect of the present disclosure, the method further includes: the second information includes switching resource related information.

[0021] In addition, according to a terminal mobility management method according to one aspect of the present disclosure, the method also includes: the first node includes: a network control node in a first network; the second node includes: an access node of a current terminal node in the first network; the third node includes: an access node of the terminal node in the first network after switching.

[0022] According to another aspect of the present disclosure, a terminal mobility management method is provided, which is applied to a second node, and the method includes: receiving a ninth message sent by a third node, wherein the ninth message includes second information; and sending a twelfth message to the terminal node, wherein the twelfth message includes the second information.

[0023] In addition, according to a terminal mobility management method according to one aspect of the present disclosure, the method further includes: sending a tenth message to the third node, wherein the tenth message is used to indicate data transmission progress.

[0024] In addition, according to a terminal mobility management method according to one aspect of the present disclosure, the method further includes: sending a first message to a first node, wherein the first message is used to request switching, and the first message includes first information.

[0025] In addition, according to a terminal mobility management method according to one aspect of the present disclosure, the method further includes: sending a third message to a third node, wherein the third message is used to synchronize state information of the second node.

[0026] In addition, according to a terminal mobility management method according to one aspect of the present disclosure, the first information includes measurement-related information; and the second information includes switching resource-related information.

[0027] In addition, according to a terminal mobility management method according to one aspect of the present disclosure, the first node includes: a network control node in a first network; the second node includes: an access node of a current terminal node in the first network; and the third node includes: an access node of the terminal node in the first network after switching.

[0028] According to another aspect of the present disclosure, a terminal mobility management method is provided, which is applied to a fifth node, and the method includes: receiving or receiving via a fourth node a seventh message sent by a first node, wherein the seventh message is used to synchronize status information of a second node; receiving or receiving via the fourth node an eighth message sent by a first node, wherein the eighth message is used to synchronize that the terminal node has switched to a third node.

[0029] In addition, according to a terminal mobility management method according to one aspect of the present disclosure, the method further includes: sending a sixth message to the first node or via the fourth node, wherein the sixth message is used to indicate a switching strategy.

[0030] In addition, according to one aspect of the terminal mobility management method of the present disclosure, the first node includes: a network control node in a first network; the second node includes: an access node of the current terminal node in the first network; the third node includes: an access node of the terminal node in the first network after switching; the fourth node includes: an access node in the second network; the fifth node includes: a network control node in the second network.

[0031] According to another aspect of the present disclosure, a terminal mobility management method is provided, which is applied to a terminal node, and the method includes: sending an eleventh message to a third node, wherein the eleventh message is used to request access to the third node; on the basis of maintaining connection with the second node, establishing a link with the third node and performing switching.

[0032] In addition, according to a terminal mobility management method according to one aspect of the present disclosure, the method further includes: receiving a twelfth message sent by the second node, wherein the twelfth message includes the second information.

[0033] In addition, according to a terminal mobility management method according to one aspect of the present disclosure, the second information includes handover resource related information.

[0034] In addition, according to a terminal mobility management method according to one aspect of the present disclosure, the second node includes: an access node of the current terminal node in the first network; and the third node includes: an access node of the terminal node in the first network after switching.

[0035] According to another aspect of the present disclosure, a terminal mobility management device is provided, the device comprising: a management module, used to manage the interaction between the first network and / or the second network due to the mobility of the terminal node, wherein the first network comprises a short-range communication network, the first network comprises at least one of the following: a terminal node, a first node, a second node, and a third node; the second network comprises a wide area communication network, the second network comprises at least one of the following: a fourth node and a fifth node.

[0036] According to another aspect of the present disclosure, a terminal mobility management device is provided, the device comprising: a first receiving module, used to receive a second message sent by a first node when it is determined to perform a switch, wherein the second message is used to indicate the switch and the second message includes second information; a first sending module, used to send a ninth message to the second node based on the second message, wherein the ninth message includes the second information.

[0037] According to another aspect of the present disclosure, a terminal mobility management device is provided, the device comprising: a first receiving module, used to receive a ninth message sent by a third node, wherein the ninth message includes second information; a first sending module, used to send a twelfth message to the terminal node, wherein the twelfth message includes the second information.

[0038] According to another aspect of the present disclosure, a terminal mobility management device is provided, which includes: a first receiving module, used to receive or receive via a fourth node a seventh message sent by a first node, wherein the seventh message is used to synchronize status information of a second node; a second receiving module, used to receive or receive via the fourth node an eighth message sent by the first node, wherein the eighth message is used to synchronize that the terminal node has switched to a third node.

[0039] According to another aspect of the present disclosure, a terminal mobility management device is provided, which includes: a sending module for sending an eleventh message to a third node, wherein the eleventh message is used to request access to the third node; and a switching module for establishing a link with the third node and performing switching on the basis of maintaining connection with the second node.

[0040] According to another aspect of the present disclosure, an electronic device is provided, including: a memory for storing computer-readable instructions; and a processor for executing the computer-readable instructions so that the electronic device executes the terminal mobility management method as described above.

[0041] According to still another aspect of the present disclosure, a computer program product is provided, including a computer program, wherein when the computer program is executed by a processor, the terminal mobility management method as described above is implemented.

[0042] As will be described in detail below, according to the terminal mobility management method of the embodiment of the present disclosure, the present disclosure proposes a terminal mobility management method that can be applied to the converged communication of cellular networks and heterogeneous short-range wireless networks. It can reduce the synchronization signaling overhead between the first node and the second node of the short-range wireless network through zero-interruption and gapless mobility switching control of terminal nodes and the switching state synchronization mechanism between heterogeneous networks, reduce the complexity of heterogeneous system design, and solve the problem of logical relationship fragmentation of heterogeneous networks.

[0043] It is to be understood that both the foregoing general description and the following detailed description are exemplary, and are intended to provide further explanation of the technology as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The above and other purposes, features and advantages of the present disclosure will become more apparent by describing the embodiments of the present disclosure in more detail in conjunction with the accompanying drawings. The accompanying drawings are used to provide a further understanding of the embodiments of the present disclosure and constitute a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the present disclosure and do not constitute a limitation of the present disclosure. In the accompanying drawings, the same reference numerals generally represent the same components or steps.

[0045] Figure 1It is a scenario diagram illustrating an application scenario of the terminal mobility management method according to an embodiment of the present disclosure.

[0046] Figure 2 It is a schematic diagram illustrating a terminal device protocol stack based on the officially released version Release 1.0 series standard of the Star Flash short-range technology according to an embodiment of the present disclosure.

[0047] Figure 3 is a method flow chart illustrating a terminal mobility management method according to an embodiment of the present disclosure.

[0048] Figure 4 is a method flow chart further illustrating the terminal mobility management method according to an embodiment of the present disclosure.

[0049] Figure 5 is a method flow chart further illustrating the terminal mobility management method according to an embodiment of the present disclosure.

[0050] Figure 6 is a method flow chart further illustrating the terminal mobility management method according to an embodiment of the present disclosure.

[0051] Figure 7 is a method flow chart further illustrating the terminal mobility management method according to an embodiment of the present disclosure.

[0052] Figure 8 It is an overall interactive flow chart illustrating a terminal mobility management method according to an embodiment of the present disclosure.

[0053] Fig. 9 It is a schematic diagram illustrating the interaction of protocol messages based on basic service layer messages in the Star Flash short-distance network according to an embodiment of the present disclosure.

[0054] Fig.10 FIG. 4 is a schematic diagram illustrating a terminal mobility management device according to an embodiment of the present disclosure.

[0055] Fig.11 is a schematic diagram further illustrating a terminal mobility management device according to an embodiment of the present disclosure.

[0056] Fig.12 is a schematic diagram further illustrating a terminal mobility management device according to an embodiment of the present disclosure.

[0057] Fig.13 is a schematic diagram further illustrating a terminal mobility management device according to an embodiment of the present disclosure.

[0058] Fig.14 is a schematic diagram further illustrating a terminal mobility management device according to an embodiment of the present disclosure.

[0059] Fig.15 is a hardware block diagram illustrating an electronic device according to an embodiment of the present disclosure.

[0060] Fig.16 is a schematic diagram illustrating a computer program product according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0061] In order to make the purpose, technical solution and advantages of the present disclosure more obvious, the exemplary embodiments according to the present disclosure will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments of the present disclosure, and it should be understood that the present disclosure is not limited to the exemplary embodiments described here.

[0062] First, refer to Figure 1 The application scenarios according to the embodiments of the present disclosure are summarized.

[0063] Figure 1 1 is a schematic diagram illustrating an application scenario of the terminal mobility management method according to an embodiment of the present disclosure. Figure 1 As shown, the application scenario may at least include: a first network (eg, a short-range wireless network) and a second network (eg, a wide-area cellular network), which form a heterogeneous network.

[0064] Among them, wide-area cellular networks: Compared with short-range wireless networks, cellular networks (such as 5G / 4G, etc.) can provide a wider coverage. Cellular networks support the communication needs of a large number of users through base stations and core network facilities, including voice, data and multimedia services. The advantages of cellular networks are wide coverage, many service users, high stability, and are suitable for mobility and wide-area communications.

[0065] In one embodiment of the present disclosure, the cellular network may be a 5G network, and the 5G network may include a 5G access node, a 5G core network (5th Generation Core Network, 5GC) and a cloud AC. Among them, the field-level 5G access node may include a 5G gateway, a base station, a core network access network element, etc.; the cloud AC may realize real-time perception and management of short-distance communication mobile terminal services through an end-to-end basic service layer transmission channel and an end-to-end end-to-end basic service layer collaborative architecture based on the converged communication of the cellular network and the short-distance wireless network.

[0066] Short-range wireless network (WLAN): refers to technologies that provide wireless connections within a smaller geographical range, such as Wireless Fidelity (Wi-Fi), Bluetooth, Zigbee, Ultra-Wide Band (UWB), etc. It can be used in scenarios such as homes, offices, or factories to provide high-speed data transmission and communication between devices. The advantages of short-range wireless networks are fast transmission speed, low cost, and flexible deployment, but the coverage is limited. It is generally suitable for scenarios with large data transmission volume and high real-time requirements.

[0067] Specifically, the short-range wireless network may include a root access node AC, a leaf access node AP, and a terminal node STA.

[0068] Among them, AP is a wireless access point (Access Point), which is one of the basic components in WLAN, allowing terminal nodes (such as smartphones, laptops, etc.) to connect to the network wirelessly. AP can be an independent device or a module integrated in a router or switch, responsible for forwarding data between wired networks and wireless devices. In actual deployment, affected by the characteristics of the spatial environment, on-site installation conditions, the number of access terminals, and Internet access needs and traffic, there may be different types of APs (such as panel APs, ceiling APs, high-density APs, etc.) to suit different scenarios and needs.

[0069] STA (Station) in a wireless network refers to any terminal device connected to a wireless network (such as a smartphone, tablet computer, or laptop computer). STA communicates with AP through wireless signals to access network resources and transmit data.

[0070] Furthermore, the AC can manage multiple APs and STAs.

[0071] Each STA can periodically scan its neighboring APs. When the STA decides to connect to a network, it will periodically scan its neighboring wireless networks. The system can select an optimal AP to connect to the STA based on factors such as signal strength, previous connection history, and user preferences. The STA accesses network services through this AP.

[0072] The AC can configure all APs through an AC-AP communication mechanism (eg, wireless access point control service protocol or lightweight access point protocol) to ensure a unified network policy and synchronization instructions.

[0073] In one embodiment of the present disclosure, the short-range wireless network may be SparkLink, which is a new type of wireless short-range communication technology that is mainly designed to meet the needs of smart cars, smart terminals, smart homes, smart manufacturing and other fields for high-quality short-range wireless connections.

[0074] Specifically, the nodes in the Star Flash communication system can be divided into G nodes (Grant nodes, G-Node) and T nodes (Terminal nodes, T-Node). A single G node can manage a certain number of T nodes. The G node and the T nodes connected to it together form a communication domain. Figure 1 As shown in the figure, AC and AP together form a G-Node, where AC and redundant AC are root G-Nodes, the terminal node front access point AP11 is a leaf G1-Node, the terminal node rear access point AP12 is a leaf G2-Node; the terminal node STA is a T-Node. Further, the system architecture of the Star Flash technology can be as follows Figure 2 shown.

[0075] Figure 2 1 is a schematic diagram illustrating a terminal device protocol stack based on the Release 1.0 series standard of the Star Flash short-distance technology officially released according to an embodiment of the present disclosure. Figure 2 As shown, the system architecture of Star Flash technology may include: access layer, basic service layer and basic application layer.

[0076] Among them, the basic service layer provides a unified and complete functional interface for the specific applications of the basic application layer, including functional units such as device discovery, service discovery, connection management, QoS (Quality of Service) management, 5G integration, security management, multi-domain coordination and measurement management. Specifically, the control plane of the basic service layer can be used to establish connections and configure transmission parameters; the data plane of the basic service layer can be used to transmit data and measure transmission quality.

[0077] The access layer provides an air interface transmission pipeline for the basic service layer. It can be used to support the basic service layer functions and the QoS required for data transmission. It can also be used to carry deterministic synchronous data transmission. It can also be used to carry asynchronous data transmission to provide protocol support for audio streaming services, video streaming services, and data transmission services, and also formulate configurations (profiles) for specific applications.

[0078] Furthermore, the interfaces of the AP and AC can be connected by wire. Depending on the AP model and interface type, it may be necessary to use standard PoE (Power over Ethernet) or an independent power adapter to power the AP. At the same time, it is necessary to ensure that the network interface is correctly connected to the switch or other network device.

[0079] Interfaces between AC and 5G access node: AC northbound interface, connected to the 5G gateway via a network cable or other wired methods, or integrated with the 5G gateway in a module manner; AC southbound interface, connected to other redundant ACs via a network cable.

[0080] As described above, the present disclosure relates to the problem of mobility management caused by STA mobility. Figure 1 It can be understood as the process in which the leaf access node to which the terminal node STA is connected switches from AP11 to AP12 during its movement. Therefore, for the convenience of description, the present disclosure takes the terminal node (i.e. STA), the first node (i.e. AC), the second node (i.e. AP11), the third node (i.e. AP12), the fourth node (i.e. 5G access node), the fifth node (i.e. cloud AC), the short-range wireless network as the Star Flash short-range network and the wide-area cellular network as the 5G network as examples to describe the terminal mobility management method in detail. It should be noted that this is only an exemplary description and is not intended to be limiting.

[0081] Figure 3 FIG. 1 is a flowchart illustrating a method for managing terminal mobility according to an embodiment of the present disclosure. Figure 3 As shown, the terminal mobility management method applied to the first node (ie, AC) may at least include the following steps.

[0082] In step S301, the interaction between the first network and / or the second network due to the mobility of the terminal node is managed, wherein the first network includes a short-range communication network, and the first network includes at least one of the following: a terminal node, a first node, a second node, and a third node; the second network includes a wide area communication network, and the second network includes at least one of the following: a fourth node and a fifth node.

[0083] As mentioned above, the present disclosure aims to solve the problems of AP switching jamming in WLAN in the prior art, the existing AC relay forwarding mode not being suitable for scenarios where STAs are densely deployed and move quickly, and the current integrated management of WLAN and cellular networks. In order to solve the above problems, the present disclosure proposes a terminal mobility management method suitable for cellular network and heterogeneous WLAN converged communication, that is, on the basis of coordinated transmission between WLAN and cellular network, a system architecture based on terminal-network-cloud collaboration of 5G+WLAN heterogeneous networking dominated by the first node of WLAN (i.e., AC).

[0084] Further, the interaction between the first network and / or the second network due to the mobility of the terminal node may include: the interaction between the second node and the third node in the first network due to the mobility of the terminal node, and / or the interaction between the first network and the second network due to the mobility of the terminal node.

[0085] As described above, the first network (WLAN) may be a StarFlash short-range network, and the second network may be a 5G network. Therefore, the terminal mobility management method applied to the AC may at least include:

[0086] (1) AC centrally manages multiple APs in a WLAN;

[0087] (2) AC manages the interaction between WLAN and 5G.

[0088] The specific method will be referred to later. Figure 8 A further detailed description is given.

[0089] Figure 4 is a method flow chart further illustrating the method for managing terminal mobility according to an embodiment of the present disclosure. Figure 4 As shown, the terminal mobility management method applied to the third node (ie, AP12) may at least include the following steps.

[0090] In step S401, when it is determined to perform a handover, a second message sent by the first node is received, wherein the second message is used to indicate the handover, and the second message includes second information. As described above, this step belongs to (1) centralized interactive management of multiple APs in the WLAN by the AC, i.e., management of AP12 by the AC. When it is determined to perform a handover, the AC instructs AP12 to perform the handover, and sends handover resource related information (i.e., the second information) to AP12.

[0091] In step S402, based on the second message, a ninth message is sent to the second node, wherein the ninth message includes the second information. As described above, after receiving the switching instruction sent by the AC, the AP12 sends a switching request XRC signaling (i.e., the ninth message) to the AP11 currently connected to the STA, wherein the switching request XRC signaling includes information related to the switching resource. Similarly, the specific method will be referred to later. Figure 8 A further detailed description is given.

[0092] Figure 5 is a method flow chart further illustrating the method for managing terminal mobility according to an embodiment of the present disclosure. Figure 5 As shown, the terminal mobility management method applied to the second node (ie, AP11) may at least include the following steps.

[0093] In step S501, a ninth message sent by a third node is received, wherein the ninth message includes second information. As described above, this step is the opposite side description of the above S402, and will not be repeated here.

[0094] In step S502, a twelfth message is sent to the terminal node, wherein the twelfth message includes the second information. As described above, after receiving the handover request XRC signaling sent by AP12, AP11 forwards the handover request XRC signaling XRCReconfiguration (HO) (i.e., the twelfth message) to the STA, which includes the handover resource related information. Similarly, the specific method will be referred to later. Figure 8 A further detailed description is given.

[0095] Figure 6 is a method flow chart further illustrating the method for managing terminal mobility according to an embodiment of the present disclosure. Figure 6 As shown, the terminal mobility management method applied to the fifth node (ie, cloud AC) may include at least the following steps.

[0096] In step S601, the seventh message sent by the first node is received or received via the fourth node, wherein the seventh message is used to synchronize the status information of the second node. As described above, this step belongs to (2) AC's interactive management between WLAN and 5G. That is, after receiving the status information synchronized by AP11 within the WLAN, the AC synchronizes the status information of AP11 to the 5G network.

[0097] In step S602, an eighth message sent by the first node is received or received via the fourth node, wherein the eighth message is used to synchronize the terminal node to switch to the third node. As described above, this step belongs to (2) AC's interactive management between WLAN and 5G. That is, after the AC determines that the STA has switched successfully within the WLAN, it synchronizes the message that the STA has switched to connect to AP12 to the 5G network. Similarly, the specific method will be referred to later. Figure 8 A further detailed description is given.

[0098] Figure 7 is a method flow chart further illustrating the method for managing terminal mobility according to an embodiment of the present disclosure. Figure 7 As shown, the terminal mobility management method applied to the terminal node (ie, STA) may at least include the following steps.

[0099] In step S701, an eleventh message is sent to the third node, wherein the eleventh message is used to request access to the third node. As described above, after the STA receives the handover request XRC signaling XRC Reconfiguration (HO) forwarded by AP11, it can send a wireless resource access request (i.e., the eleventh message) to AP12 after AP11, AP12, and AC are ready for handover.

[0100] In step S702, on the basis of maintaining the connection with the second node, a link is established with the third node and a handover is performed. As described above, after completing the wireless resource access in step S701, the STA, on the basis of maintaining the connection with AP11, establishes a link with AP12 and a handover is performed. Similarly, the specific method will be referred to later. Figure 8 A further detailed description is given.

[0101] Figure 8 FIG. 2 is an overall interactive flow chart illustrating a terminal mobility management method according to an embodiment of the present disclosure. Figure 8 As shown, the terminal mobility management method of the embodiment of the present disclosure may include at least the following subjects: STA, AP11, AP12, AC, 5G access node, cloud AC, and the method may include at least the following 6 stages.

[0102] It should be noted that the present disclosure takes STA, AP11, AP12, AC, and 5G access nodes as examples only for the convenience of description and does not constitute a limitation.

[0103] Phase 1: Each node establishes a connection. This may include:

[0104] 1. AP broadcasts system messages. Specifically, AP11 and AP12 broadcast the same service set identifier (SSID) so that STAs can find the SSID and establish connections. SSID is an identifier used to distinguish different wireless networks, which is equivalent to the network name. AP broadcasts SSID regularly so that STAs within the range can scan the SSID through wireless signals.

[0105] 2. An L2 connection is established between session nodes in the WLAN, and a 5G converged transmission channel is established between the AC and the cloud AC. Specifically, when the STA decides to connect to the SSID, the best AP is selected to establish an L2 connection based on factors such as signal strength, previous connection history, or user preference. At the same time, the short-range communication domain AC establishes a connection with the cloud AC in the 5G communication domain based on the 5G converged communication transmission channel.

[0106] Furthermore, during this process, the cloud AC may send a sixth message to the AC via the 5G access node, wherein the sixth message is used to indicate a switching strategy; then, the AC may optimize the STA access threshold of each AP access point according to the sixth message.

[0107] Among them, the cloud AC can optimize and adjust the STA access threshold of each AP access point based on the daily data reported by the session node. The daily reporting information may include: Basic Service Set Identifier (BSSID) and Received Signal Strength Indicator (RSSI) value, where BSSID is the unique identifier of each AP and RSSI value is the signal strength value received by the reporting AP from other APs.

[0108] Phase 2: Initial access configuration. This may include:

[0109] 3. Establish a cross-radio access technology (XRC) connection between STA and AP11. Specifically, STA sends an XRC Setup Request message to AP11, which is used to request the establishment of a radio resource control (RRC) connection, including an identifier for conflict resolution, because during the random access process, multiple STAs may try to access the network at the same time, which may cause channel conflicts. In addition, STA can also report its capability information and auxiliary information to AP11 through XRC signaling on the configured resources.

[0110] It should be noted that by establishing an L2 transmission channel between the nodes of the Star Flash short-distance session, protocol messages can be exchanged based on the basic service layer message. AP11 sends a cross-radio access technology establishment response (XRC Complete) message to the STA. For details, see Fig. 9 shown.

[0111] Fig. 9 FIG. 2 is a schematic diagram illustrating the interaction of protocol messages based on the basic service layer message in the Star Flash short-distance network according to an embodiment of the present disclosure. Fig. 9 As shown, the key fields of the basic service layer transmission protocol frame may include at least: the network layer northbound channel identification bit TCID, the word length bit Length, and the application layer SDU data bit. Among them:

[0112] Transmission channel identifier TCID: indicates the basic channel for transmission in the basic service layer. All transmission processes are based on the transmission channel. The transmission channel will be mapped to the logical channel of the access layer.

[0113] Length: indicates the data length of the application layer SDU data.

[0114] The application layer SDU data bits (6 to 65535 bytes) may further include: service type, word length bits, and application layer payload data bits, etc.

[0115] In addition to the above key fields, the mobility management protocol frame based on the short-range communication domain L2 connection may also include the following key fields, as shown in Table 1.

[0116]

[0117] Table 1

[0118] Byte 0: Data packet type index bit, used to indicate that the data packet is a terminal mobility management message using periodic adaptation or event adaptation. For example, if the index bit indicates that it is a data plane message using periodic adaptation, the message may be a data packet carrying a measurement report reported periodically.

[0119] Byte 1: Control plane data packet type index bit, further indicating that the message is used for control plane management of terminal mobility management, such as pre-allocated communication resource messages, neighbor node handover request / response messages, etc.

[0120] Byte 2: Packet length indicator.

[0121] Bytes 3-8: Control plane data for terminal mobility management, including pre-allocated communication resource strategy, pre-allocated communication resource indication, data sequence number state transfer indication, conflict resolution identification indication, terminal capability information, terminal assistance indication, etc.

[0122] Byte 13: Handover event number, including but not limited to the identifiers corresponding to handover events such as hard (soft) handover request, hard (soft) handover response, ping-pong-free handover, and pre-allocated communication resources.

[0123] 4. STA and AP11 establish security association, complete the security authentication request with the target access point AP11 in advance, and maintain network connection with the original access point.

[0124] 5. XRC Reconfiguration / Complete radio resource control configuration and confirmation is performed between STA and AP11.

[0125] 6. AP11 sends a third message to AC, where the third message is used to synchronize status information of AP11.

[0126] 7. The AC sends the seventh message to the cloud AC via the 5G access node, where the seventh message is used to synchronize the status information of AP11.

[0127] 8. Uplink and downlink data transmission is performed between STA, AP11 and AC.

[0128] Phase 3: Switching measurement configuration. This may include:

[0129] 9. STA reports measurement results. Specifically, STA switches measurement configuration, that is, reports measurement results (e.g., Measurement Report (MR)) according to measurement configuration period or event. AP11 monitors and evaluates the transmission environment and channel status of STA in real time based on MR, including but not limited to: STA's signal-to-noise ratio (SNR), signal strength RSSI, interference level and other parameters, as well as neighboring G node (e.g., AP12) signal strength RSSI and other measurement values.

[0130] 10. AP11 makes a conditional judgment on the measurement result. Specifically, AP11 can judge whether to request a switch to the AC based on the monitored measurement data and the threshold. For example, when the monitored signal quality is lower than the threshold, it is determined that a switch to the AC is required; when it is higher than the threshold, it is considered that no switch is required.

[0131] 11. AP11 sends a first message to AC. Specifically, when AP11 determines that it needs to request switching from AC, AP11 sends a first message to AC, where the first message is used to request switching, the first message may include first information, and the first message may include measurement-related information (i.e., measurement report MR). AC can select different resource pre-allocation strategies according to the transmission status of different STAs. For example: for STAs in a good transmission state, fewer redundant resources are allocated; and for STAs in a poor transmission state, more resources are allocated to ensure the reliability of communication. And through a real-time feedback mechanism, ensure that the system can adapt to environmental changes and dynamically adjust resource allocation strategies.

[0132] The fourth stage: switching judgment and switching preparation. Specifically, it may include:

[0133] 12. AC performs threshold judgment. Specifically, AC performs threshold judgment on the reported handover event, and when the handover threshold is reached, the following step 13 is executed.

[0134] 13. When the handover threshold is reached, the AC sends a second message to the neighboring node AP12, wherein the second message is used to indicate handover. The second message includes second information, and the second information includes handover resource related information (e.g., pre-allocated communication resources). Then, the AP12 sends a response message to the second message to the AC.

[0135] 14. AP12 sends a ninth message to AP11, wherein the ninth message includes the second information. Specifically, the ninth message may be a handover request XRC signaling, which carries pre-allocated communication resources.

[0136] In order to reduce the probability of conflict between STAs, the short-range wireless communication network management node uses the Neyman-Pearson (NP) criterion to classify the transmission status of STAs, and accordingly designs different resource pre-allocation strategies to allocate communication resources to terminals, so as to reduce conflicts and improve the reliability and efficiency of communication. Specifically, the following steps are taken:

[0137] Apply NP criteria: Based on the monitored data, use the NP criteria to determine the transmission status of each STA. When the monitored signal quality is higher than the threshold, it is considered to be a normal transmission state; when it is lower than the threshold, it is considered to have interference or other problems.

[0138] Resource pre-allocation: Different resource pre-allocation strategies are designed according to the transmission status of different STAs. For STAs in good transmission status, fewer redundant resources are allocated; for STAs in poor transmission status, more resources are allocated to ensure the reliability of communication.

[0139] Dynamic adjustment: A real-time feedback mechanism is used to ensure that the system can adapt to environmental changes and dynamically adjust resource allocation strategies.

[0140] 15. AP11 sends a twelfth message to the STA, wherein the twelfth message includes the second information. Specifically, AP11 forwards a handover request XRC signaling XRC Reconfiguration (HO) to the STA, wherein the request signaling carries the pre-allocated communication resources.

[0141] 16. AP11 sends the tenth message to AP12, where the tenth message is used to indicate the progress of data transmission. Specifically, AP11 can send a data sequence number state transfer indication message to AP12, where the data sequence number state transfer indication message is used to ensure the continuity and sequence correctness of the data packet during network switching. The data sequence number state transfer indication message may include the sequence number information of the data sent by the STA before the switch, so that the subsequent access point (i.e., AP12) understands which data has been successfully transmitted and which data needs to continue to be transmitted. Then, AP12 sends a handover preparation success indication message to AP11.

[0142] 17. AP12 sends a fourth message to AC, where the fourth message is used to synchronize status information of AP12.

[0143] Phase 5: Execute the handover. This may include:

[0144] 18. STA sends the eleventh message to AP12, wherein the eleventh message is used to request wireless resource access to AP12. Then, AP12 responds to the wireless resource access request of STA ( Figure 8 not shown).

[0145] 19. After completing the wireless resource access, the STA maintains the connection with the original access point (AP11) and establishes a wireless link with AP12. The STA immediately switches to the new access point (AP12).

[0146] 20. AP12 sends a fifth message to AC, where the fifth message is used to synchronize STAs to switch to AP12.

[0147] 21. The AC sends a switching instruction message to the AP11 via the AP12, for instructing the AP11 to release the link with the STA. Then, the AP11 performs the release.

[0148] 22. The AC initiates measurement configuration to the STA, and then receives a configuration completion response message from the STA to confirm that the configuration is successful.

[0149] Phase 6: Complete the switch. This may include:

[0150] 23. After the mobility switching is completed, the AC then sends the eighth message to the cloud AC via the 5G access node, where the eighth message is used to synchronize the STA to have switched to AP12.

[0151] Fig.10 FIG. 2 is a schematic diagram illustrating a terminal mobility management device according to an embodiment of the present disclosure. Fig.10 As shown, the terminal mobility management device 1000 may include at least the following modules.

[0152] The management module 1001 is used to manage the interaction between the first network and / or the second network due to the mobility of the terminal node, wherein the first network includes a short-range communication network, and the first network includes at least one of the following: a terminal node, a first node, a second node, and a third node; the second network includes a wide area communication network, and the second network includes at least one of the following: a fourth node and a fifth node.

[0153] The management module 1001 may include:

[0154] The local area management unit 10011 manages the interaction between the second node and the third node in the first network due to the mobility of the terminal node.

[0155] and / or,

[0156] The wide area management unit 10012 manages the interaction between the first network and the second network due to the mobility of the terminal node.

[0157] Furthermore, the local area management unit 10011 may include:

[0158] The first receiving subunit 100111 is configured to receive a first message sent by the second node, wherein the first message is used to request switching and includes first information;

[0159] A first determining subunit 100112 is configured to determine whether to perform switching based on the first information and a preset threshold;

[0160] The first sending subunit 100113 is used to send a second message to the third node when it is determined to perform the handover, wherein the second message is used to indicate the handover and includes second information;

[0161] The second determining subunit 100114 is configured to determine the second information based on the first information and the switching resource preset strategy;

[0162] The second receiving subunit 100115 is used to receive a third message sent by the second node, wherein the third message is used to synchronize the state information of the second node;

[0163] The third receiving subunit 100116 is used to receive a fourth message sent by the third node, wherein the fourth message is used to synchronize the state information of the third node;

[0164] The fourth receiving subunit 100117 is used to receive a fifth message sent by the third node, wherein the fifth message is used to synchronize the terminal node to switch to the third node.

[0165] Furthermore, the wide area management unit 10012 may include:

[0166] The first receiving subunit 100121 is configured to receive a sixth message sent by the fifth node or via the fourth node, where the sixth message is used to indicate a switching strategy;

[0167] The first sending subunit 100122 is used to send a seventh message to the fifth node or to the fifth node via the fourth node, wherein the seventh message is used to synchronize the state information of the second node;

[0168] The second sending subunit 100123 is used to send an eighth message to the fifth node or to the fifth node via the fourth node, wherein the eighth message is used to synchronize the terminal node to have switched to the third node.

[0169] In the above, the first information includes measurement related information; the second information includes switching resource related information.

[0170] In the above, the first node includes: a network control node in the first network; the second node includes: an access node of the current terminal node in the first network; the third node includes: an access node of the terminal node in the first network after switching; the fourth node includes: an access node in the second network; the fifth node includes: a network control node in the second network.

[0171] Fig.11 is a schematic diagram further illustrating a terminal mobility management device according to an embodiment of the present disclosure. Fig.11 As shown, the terminal mobility management device 1100 may include at least the following modules.

[0172] The first receiving module 1101 is configured to receive a second message sent by the first node when it is determined to perform the handover, wherein the second message is used to indicate the handover and includes second information.

[0173] The first sending module 1102 is configured to send a ninth message to the second node based on the second message, wherein the ninth message includes the second information.

[0174] In addition, the terminal mobility management device 1100 may further include:

[0175] The second receiving module 1103 is used to receive a tenth message sent by the second node, wherein the tenth message is used to indicate data transmission progress;

[0176] The second sending module 1104 is configured to send a fourth message to the first node based on the tenth message, wherein the fourth message is used to synchronize the status information of the third node.

[0177] The third receiving module 1105 is used to receive an eleventh message sent by the terminal node and establish a link, wherein the eleventh message is used to request access to a third node;

[0178] The third sending module 1106 is used to send a fifth message to the first node, wherein the fifth message is used to synchronize the terminal node to switch to the third node.

[0179] In the above, the second information includes information related to the switching resource.

[0180] In the above, the first node includes: a network control node in the first network; the second node includes an access node of the current terminal node in the first network; and the third node includes: an access node of the terminal node in the first network after switching.

[0181] Fig.12 is a schematic diagram further illustrating a terminal mobility management device according to an embodiment of the present disclosure. Fig.12 As shown, the terminal mobility management device 1200 may include at least the following modules.

[0182] The first receiving module 1201 is configured to receive a ninth message sent by a third node, wherein the ninth message includes second information.

[0183] The first sending module 1202 is configured to send a twelfth message to the terminal node, wherein the twelfth message includes second information.

[0184] In addition, the terminal mobility management device 1200 may further include:

[0185] The second sending module 1203 is configured to send a tenth message to the third node, wherein the tenth message is used to indicate data transmission progress.

[0186] The third sending module 1204 is configured to send a first message to the first node, wherein the first message is used to request switching and includes first information.

[0187] The fourth sending module 1205 is used to send a third message to the third node, wherein the third message is used to synchronize the state information of the second node.

[0188] In the above, the first information includes measurement related information; the second information includes switching resource related information.

[0189] In the above, the first node includes: a network control node in the first network; the second node includes an access node of the current terminal node in the first network; and the third node includes: an access node of the terminal node in the first network after switching.

[0190] Fig.13 is a schematic diagram further illustrating a terminal mobility management device according to an embodiment of the present disclosure. Fig.13 As shown, the terminal mobility management device 1300 may include at least the following modules.

[0191] The first receiving module 1301 is configured to receive a seventh message sent by the first node or receive via the fourth node, wherein the seventh message is used to synchronize the status information of the second node.

[0192] The second receiving module 1302 is configured to receive or receive via the fourth node an eighth message sent by the first node, wherein the eighth message is used to synchronize the terminal node to have switched to the third node.

[0193] In addition, the terminal mobility management device 1300 may further include:

[0194] The first sending module 1303 is configured to send a sixth message to the first node or via the fourth node, wherein the sixth message is used to indicate a switching strategy.

[0195] In the above, the first node includes: a network control node in the first network; the second node includes: an access node of the current terminal node in the first network; the third node includes: an access node of the terminal node in the first network after switching; the fourth node includes: an access node in the second network; the fifth node includes: a network control node in the second network.

[0196] Fig.14 is a schematic diagram further illustrating a terminal mobility management device according to an embodiment of the present disclosure. Fig.14 As shown, the terminal mobility management device 1400 may include at least the following modules.

[0197] The sending module 1401 is configured to send an eleventh message to the third node, wherein the eleventh message is used to request access to the third node.

[0198] The switching module 1402 is used to establish a link with a third node and perform switching on the basis of maintaining connection with the second node.

[0199] In addition, the terminal mobility management device 1400 may further include:

[0200] The receiving module 1403 receives a twelfth message sent by the second node, wherein the twelfth message includes second information.

[0201] In the above, the second information includes information related to the switching resource.

[0202] In the above, the second node includes the access node of the current terminal node in the first network; the third node includes: the access node of the terminal node in the first network after the handover.

[0203] Fig.15 1 is a hardware block diagram of an electronic device according to an embodiment of the present disclosure. The electronic device according to an embodiment of the present disclosure includes at least a processor; and a memory for storing computer-readable instructions. When the computer-readable instructions are loaded and executed by the processor, the processor executes the terminal mobility management method as described above.

[0204] Fig.15 The electronic device 1500 shown specifically includes: a central processing unit (CPU) 1501, a graphics processing unit (GPU) 1502 and a memory 1503. These units are connected to each other via a bus 1504. The central processing unit (CPU) 1501 and / or the graphics processing unit (GPU) 1502 can be used as the above-mentioned processor, and the memory 1503 can be used as the above-mentioned memory for storing computer-readable instructions. In addition, the electronic device 1500 may also include a communication unit 1505, a storage unit 1506, an output unit 1507, an input unit 1508 and an external device 1509, which are also connected to the bus 1504.

[0205] Fig.16 is a schematic diagram illustrating a computer program product according to an embodiment of the present disclosure. Fig.16 As shown, a computer program product 1600 according to an embodiment of the present disclosure has a computer program 1601 stored thereon. When the computer program 1601 is executed by a processor, the terminal mobility management method described with reference to the above figures is executed. The computer program product includes, but is not limited to, for example, a volatile memory and / or a non-volatile memory. The volatile memory may include, for example, a random access memory (RAM) and / or a cache memory (cache), etc. The non-volatile memory may include, for example, a read-only memory (ROM), a hard disk, a flash memory, an optical disk, a magnetic disk, etc.

[0206] In the above, a terminal mobility management method, device, electronic device and computer program product according to an embodiment of the present disclosure are described with reference to the accompanying drawings. According to the terminal mobility management method of an embodiment of the present disclosure, the present disclosure proposes a terminal mobility management method that can be applied to the converged communication of a cellular network and a heterogeneous short-range wireless network. The method can reduce the synchronization signaling overhead between the first node and the second node of the short-range wireless network through zero-interruption and gapless mobility switching control of the terminal node and the switching state synchronization mechanism between heterogeneous networks, reduce the complexity of heterogeneous system design, and solve the problem of the separation of logical relationships in heterogeneous networks.

[0207] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this disclosure.

[0208] The basic principles of the present disclosure are described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, effects, etc. mentioned in the present disclosure are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present disclosure. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, and are not limitations. The above details do not limit the present disclosure to the necessity of adopting the above specific details to be implemented.

[0209] The block diagrams of the devices, apparatuses, equipment, and systems involved in this disclosure are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagrams. As will be appreciated by those skilled in the art, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "including," "comprising," "having," and the like are open words, referring to "including but not limited to," and can be used interchangeably therewith. The words "or" and "and" used herein refer to the words "and / or," and can be used interchangeably therewith, unless the context clearly indicates otherwise. The word "such as" used herein refers to the phrase "such as but not limited to," and can be used interchangeably therewith.

[0210] Additionally, as used herein, "or" used in a list of items beginning with "at least one" indicates a separate list, so that, for example, a list of "at least one of A, B, or C" means A or B or C, or AB or AC or BC, or ABC (i.e., A and B and C). Furthermore, the word "exemplary" does not mean that the example described is preferred or better than other examples.

[0211] It should also be noted that in the system and method of the present disclosure, each component or each step can be decomposed and / or recombined. Such decomposition and / or recombination should be regarded as equivalent solutions of the present disclosure.

[0212] Various changes, substitutions, and modifications of the techniques described herein may be made without departing from the teachings defined by the appended claims. Furthermore, the scope of the claims of the present disclosure is not limited to the specific aspects of the processes, machines, manufactures, compositions of events, means, methods, and actions described above. Currently existing or later to be developed processes, machines, manufactures, compositions of events, means, methods, or actions that perform substantially the same functions or achieve substantially the same results as the corresponding aspects described herein may be utilized. Thus, the appended claims include such processes, machines, manufactures, compositions of events, means, methods, or actions within their scope.

[0213] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present disclosure. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present disclosure. Therefore, the present disclosure is not intended to be limited to the aspects shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0214] The above description has been given for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present disclosure to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.

Claims

1. A terminal mobility management method, characterized in that: Applied to the first node, the method comprises: managing the interaction between the first network and / or the second network due to the mobility of the terminal node, wherein: The first network includes a short-range communication network, and the first network includes at least one of the following: the terminal node, the first node, the second node, and the third node; The second network includes a wide area communication network, and the second network includes at least one of the following: a fourth node and a fifth node.

2. The terminal mobility management method according to claim 1, characterized in that: Managing the interaction between the first network and / or the second network due to the mobility of the terminal node, including: managing the interaction between the second node and the third node in the first network due to the mobility of the terminal node; and / or, Managing interactions between the first network and the second network due to mobility of the terminal node.

3. The terminal mobility management method according to claim 2, characterized in that: The managing the interaction between the second node and the third node in the first network due to the mobility of the terminal node includes: receiving a first message sent by the second node, wherein the first message is used to request switching and includes first information; Determine whether to perform switching based on the first information and a preset threshold; In the case of determining to perform the handover, a second message is sent to the third node, wherein the second message is used to indicate the handover, and the second message includes second information.

4. The terminal mobility management method according to claim 3, characterized in that: The managing the interaction between the second node and the third node in the first network due to the mobility of the terminal node further includes: The second information is determined based on the first information and a preset switching resource policy.

5. The terminal mobility management method according to claim 3, characterized in that: The managing the interaction between the second node and the third node in the first network due to the mobility of the terminal node further includes: receiving a third message sent by the second node, wherein the third message is used to synchronize state information of the second node; receiving a fourth message sent by the third node, wherein the fourth message is used to synchronize state information of the third node; A fifth message sent by the third node is received, wherein the fifth message is used to synchronize that the terminal node has been switched to the third node.

6. The terminal mobility management method according to claim 2, characterized in that: The managing the interaction between the first network and the second network due to the mobility of the terminal node includes: A sixth message sent by the fifth node or via the fourth node is received, where the sixth message is used to indicate a switching strategy.

7. The terminal mobility management method according to claim 2, characterized in that: The managing the interaction between the first network and the second network due to the mobility of the terminal node further includes: Sending a seventh message to the fifth node or to the fifth node via the fourth node, wherein the seventh message is used to synchronize the state information of the second node; An eighth message is sent to the fifth node or to the fifth node via the fourth node, wherein the eighth message is used to synchronize that the terminal node has switched to the third node.

8. The terminal mobility management method according to claim 3 or 4, characterized in that: The first information includes measurement related information; The second information includes information related to switching resources.

9. The terminal mobility management method according to any one of claims 1 to 7, characterized in that: The first node includes: a network control node in the first network; The second node includes: an access node of the terminal node in the first network at present; The third node includes: an access node in the first network of the terminal node after switching; The fourth node includes: an access node in the second network; The fifth node includes: a network control node in the second network.

10. A terminal mobility management method, characterized in that: Applied to the third node, the method includes: In the case of determining to perform the handover, receiving a second message sent by the first node, wherein the second message is used to indicate the handover, and the second message includes second information; Based on the second message, a ninth message is sent to the second node, wherein the ninth message includes the second information.

11. The terminal mobility management method according to claim 10, characterized in that: The method further comprises: receiving a tenth message sent by the second node, wherein the tenth message is used to indicate a data transmission progress; Based on the tenth message, a fourth message is sent to the first node, wherein the fourth message is used to synchronize the status information of the third node.

12. The terminal mobility management method according to claim 10, characterized in that: The method further comprises: receiving an eleventh message sent by the terminal node and establishing a link, wherein the eleventh message is used to request access to the third node; A fifth message is sent to the first node, wherein the fifth message is used to synchronize that the terminal node has switched to the third node.

13. The terminal mobility management method according to claim 10, characterized in that: The method further comprises: The second information includes information related to switching resources.

14. The terminal mobility management method according to any one of claims 10 to 13, characterized in that: The method further comprises: The first node includes: a network control node in a first network; The second node includes: an access node of the terminal node in the first network at present; The third node includes: an access node in the first network of the terminal node after switching.

15. A terminal mobility management method, characterized in that: Applied to the second node, the method comprises: receiving a ninth message sent by the third node, wherein the ninth message includes the second information; A twelfth message is sent to the terminal node, wherein the twelfth message includes the second information.

16. The terminal mobility management method according to claim 15, characterized in that: The method further comprises: A tenth message is sent to the third node, wherein the tenth message is used to indicate data transmission progress.

17. The terminal mobility management method according to claim 15, characterized in that: The method further comprises: A first message is sent to a first node, wherein the first message is used to request switching and includes first information.

18. The terminal mobility management method according to claim 15, characterized in that: The method further comprises: A third message is sent to the third node, wherein the third message is used to synchronize the status information of the second node.

19. The terminal mobility management method according to any one of claims 15 to 18, characterized in that: The first information includes measurement related information; The second information includes information related to switching resources.

20. The terminal mobility management method according to any one of claims 15 to 18, characterized in that: The first node includes: a network control node in a first network; The second node includes: an access node of the terminal node in the first network at present; The third node includes: an access node in the first network of the terminal node after the handover.

21. A terminal mobility management method, characterized in that: Applied to the fifth node, the method comprises: receiving or receiving via the fourth node a seventh message sent by the first node, wherein the seventh message is used to synchronize state information of the second node; An eighth message sent by the first node is received or received via the fourth node, wherein the eighth message is used to synchronize the terminal node to switch to the third node.

22. The terminal mobility management method according to claim 21, characterized in that: The method further comprises: A sixth message is sent to the first node or via the fourth node, wherein the sixth message is used to indicate a switching strategy.

23. The terminal mobility management method according to any one of claims 21 or 22, characterized in that: The first node includes: a network control node in a first network; The second node includes: an access node of the terminal node in the first network at present; The third node includes: an access node in the first network of the terminal node after switching; The fourth node includes: an access node in the second network; The fifth node includes: a network control node in the second network.

24. A terminal mobility management method, characterized in that: Applied to a terminal node, the method comprises: Sending an eleventh message to the third node, wherein the eleventh message is used to request access to the third node; On the basis of maintaining the connection with the second node, a link is established with the third node and a handover is performed.

25. The terminal mobility management method according to claim 24, characterized in that: The method further comprises: A twelfth message sent by the second node is received, wherein the twelfth message includes second information.

26. The terminal mobility management method according to claim 25, characterized in that: The second information includes information related to switching resources.

27. The terminal mobility management method according to any one of claims 24 to 26, characterized in that: The second node includes: an access node of the terminal node in the first network; The third node includes: an access node in the first network of the terminal node after the handover.

28. A terminal mobility management device, characterized in that: The device comprises: A management module is used to manage the interaction between the first network and / or the second network due to the mobility of the terminal node, wherein: The first network includes a short-range communication network, and the first network includes at least one of the following: the terminal node, the first node, the second node, and the third node; The second network includes a wide area communication network, and the second network includes at least one of the following: a fourth node and a fifth node.

29. A terminal mobility management device, characterized in that: The device comprises: A first receiving module, configured to receive a second message sent by the first node when it is determined to perform the handover, wherein the second message is used to indicate the handover and includes second information; The first sending module is used to send a ninth message to the second node based on the second message, wherein the ninth message includes the second information.

30. A terminal mobility management device, characterized in that: The device comprises: A first receiving module, configured to receive a ninth message sent by a third node, wherein the ninth message includes second information; The first sending module is used to send a twelfth message to the terminal node, wherein the twelfth message includes the second information.

31. A terminal mobility management device, characterized in that: The device comprises: a first receiving module, configured to receive or receive via a fourth node a seventh message sent by the first node, wherein the seventh message is used to synchronize state information of the second node; The second receiving module is used to receive or receive via the fourth node an eighth message sent by the first node, wherein the eighth message is used to synchronize the terminal node to have switched to the third node.

32. A terminal mobility management device, characterized in that: The device comprises: A sending module, configured to send an eleventh message to a third node, wherein the eleventh message is used to request access to the third node; The switching module is used to establish a link with the third node and perform switching on the basis of maintaining connection with the second node.

33. An electronic device, characterized in that: include: a memory for storing computer readable instructions; as well as A processor is used to run the computer-readable instructions so that the electronic device executes the terminal mobility management method as described in any one of claims 1 to 27.

34. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the terminal mobility management method according to any one of claims 1 to 27 is implemented.

Images