Mobility management method, device and system, electronic equipment and readable medium

Abstract

The invention provides a mobility management method, device and system, electronic equipment and a readable medium, and belongs to the technical field of communication. According to the scheme, in a scene that UE is dual-registered to a first core network and a second core network, when the first core network performs TAI list allocation for the UE, a first TAI list allocated by the first core network itself can be sent to the second core network, and then a second TAI list allocated to the UE after negotiation with the second core network is received. At the moment, in the process of allocating the TAI list for the UE, negotiating to obtain the second TAI list which the first core network and the second core network jointly participate in allocation, thereby simplifying the complex process of respectively allocating the TAI list for the UE; and the second TAI list is negotiated and distributed by the first core network and the second core network, so that the situation that the UE frequently initiates signaling when moving between the first core network and the second core network is avoided, the network load and the terminal energy consumption are effectively reduced, and the communication efficiency is further improved.

Description

Technical Field

[0001] This disclosure belongs to the field of communication technologies, and particularly relates to a mobility management method, a mobility management device, a mobility management system, an electronic device, and a computer-readable medium. Background Art

[0002] In a mobile network, in order to adapt to the complex scenarios of converged deployment, a UE (User Equipment) can selectively support dual registration on the basis of supporting single registration to meet service requirements. In the dual registration mode, the UE can access different radio access technologies (RATs) and their corresponding core networks successively or simultaneously.

[0003] In the dual registration mode, when the UE moves between different core network combinations, a large amount of signaling transmission will be caused, resulting in low communication efficiency, high network load, and high power consumption. Summary of the Invention

[0004] The purpose of the embodiments of this disclosure is to provide a mobility management method, a mobility management device, a mobility management system, an electronic device, and a computer-readable medium, which can simplify the process of allocating a TAI list to the UE when the UE is dual-registered to a core network combination, and reduce the signaling transmission when the UE moves between core network combinations, thereby reducing the network load and terminal power consumption, and further improving the communication efficiency.

[0005] To solve the above technical problems, this disclosure is implemented as follows:

[0006] In a first aspect, this disclosure provides a mobility management method, which can be applied to a first core network. The method may include: sending a first Tracking Area Identity list (TAI list) allocated to a user equipment (UE) to a second core network; the UE is dual-registered to the first core network and the second core network; receiving a second TAI list allocated to the UE after negotiation with the second core network.

[0007] Optionally, the method further includes: sending a response message to the UE, where the response message includes the second TAI list.

[0008] Optionally, the method further includes: sending a response message to the UE, where the response message includes the second TAI list, and an indication that the second TAI list is available under the second core network.

[0009] Optionally, the second TAI list corresponds to the same coverage area under the first core network and the second core network.

[0010] Optionally, the method further includes: receiving a third TAI list allocated by the second core network for the UE; and sending a response message to the UE, where the response message includes the third TAI list.

[0011] Optionally, the third TAI list is used for the UE to perform mobility management under the second core network.

[0012] Optionally, the coverage area of the third TAI list coincides with that of the second TAI list.

[0013] Optionally, receiving the second TAI list allocated to the UE after negotiation with the second core network includes: receiving the second TAI list confirmed through negotiation with the second core network based on the first TAI list.

[0014] Optionally, at least part of the encoded content of the second TAI list is the same as that of the first TAI list.

[0015] Optionally, the method is applied to a functional network element responsible for mobility management under the first core network.

[0016] Optionally, the first TAI list is used for the UE to perform mobility management under the first core network.

[0017] Optionally, the first core network corresponds to a first RAT; the UE accesses the first core network through the first RAT, or the UE accesses the first core network through a second RAT; the second RAT is different from the first RAT.

[0018] Optionally, the response message includes any one of a re-registration acceptance message and a location update acceptance message.

[0019] In a second aspect, the present disclosure provides a mobility management method, which can be applied to a second core network. The method may include: receiving a first TAI list sent by the first core network; the first TAI list is allocated by the first core network for the UE, and the UE is dual-registered to the first core network and the second core network; and sending a second TAI list allocated to the UE after negotiation to the first core network.

[0020] Optionally, the second TAI list corresponds to the same coverage area under the first core network and the second core network.

[0021] Optionally, sending the second TAI list allocated to the UE after negotiation to the first core network includes: sending the second TAI list confirmed through negotiation based on the first TAI list to the first core network.

[0022] Optionally, send the second TAI list allocated to the UE after negotiation to the first core network, including: sending the second TAI list negotiated and confirmed based on the first TAI list to the first core network, and an indication that the second TAI list is available under the second core network.

[0023] Optionally, the method further includes: paging the UE within the range of the second TAI list.

[0024] Optionally, the method further includes: sending the third TAI list allocated to the UE to the first core network.

[0025] Optionally, the third TAI list is used for the UE to perform mobility management under the second core network.

[0026] Optionally, the coverage area of the third TAI list coincides with that of the second TAI list.

[0027] Optionally, the method further includes: paging the UE within the range of the third TAI list.

[0028] Optionally, the method is applied to a functional network element responsible for mobility management under the second core network.

[0029] In a third aspect, the present disclosure provides a mobility management method, which can be applied to a UE that is dual-registered to a first core network and a second core network. The method may include: receiving a response message sent by the first core network; the response message includes a second TAI list negotiated and confirmed by the first core network and the second core network; and / or, the response message includes a third TAI list allocated by the second core network for the UE; performing corresponding mobility management based on the response message.

[0030] Optionally, the response message includes a second TAI list negotiated and confirmed by the first core network and the second core network. Performing corresponding mobility management based on the response message includes: performing mobility management under the first core network based on the second TAI list.

[0031] Optionally, the response message includes a third TAI list allocated by the second core network for the UE. Performing corresponding mobility management based on the response message includes: performing mobility management under the second core network based on the third TAI list.

[0032] Optionally, the response message includes a second TAI list negotiated and confirmed by the first core network and the second core network, and the response message further includes an indication that the second TAI list is available under the second core network. Performing corresponding mobility management based on the response message includes: performing mobility management based on the second TAI list under the first core network, and performing mobility management based on the second TAI list under the second core network.

[0033] Optionally, the second TAI list corresponds to the same coverage area under the first core network and the second core network.

[0034] Optionally, the coverage area of the third TAI list coincides with that of the second TAI list.

[0035] In a fourth aspect, the present disclosure provides a mobility management device, which is applied to the first core network. The device may include: a first sending module, configured to send a first TAI list allocated for the UE to the second core network; the UE is dual-registered to the first core network and the second core network; a first receiving module, configured to receive a second TAI list allocated to the UE after negotiation with the second core network; the second TAI list corresponds to the same coverage area under the first core network and the second core network.

[0036] In a fifth aspect, the present disclosure provides a mobility management device, which is applied to the second core network. The device may include: a second receiving module, configured to receive the first TAI list sent by the first core network; the first TAI list is allocated for the UE by the first core network, and the UE is dual-registered to the first core network and the second core network; a second sending module, configured to send the second TAI list allocated to the UE after negotiation to the first core network; the second TAI list corresponds to the same coverage area under the first core network and the second core network.

[0037] In a sixth aspect, the present disclosure provides a mobility management device, which is applied to the UE. The UE is dual-registered to the first core network and the second core network. The device may include: a third receiving module, configured to receive a response message sent by the first core network; the response message includes a second TAI list negotiated and confirmed by the first core network and the second core network; and / or, the response message includes a third TAI list allocated for the UE by the second core network; a mobility management module, configured to perform corresponding mobility management based on the response message; wherein, the second TAI list corresponds to the same coverage area under the first core network and the second core network.

[0038] In a seventh aspect, the present disclosure provides a mobility management system, which includes a first core network, a second core network, and a UE. The UE is dual-registered to the first core network and the second core network. Among them, the first core network is used to execute the mobility management method of the foregoing first aspect; the second core network is used to execute the mobility management method of the foregoing second aspect; and the UE is used to execute the mobility management method of the foregoing third aspect.

[0039] In an eighth aspect, the present disclosure provides an electronic device, which includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor. When the program or instruction is executed by the processor, it implements the steps of the mobility management method as in the first aspect, the second aspect, or the third aspect.

[0040] In a ninth aspect, the present disclosure provides a computer-readable medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, it implements the steps of the mobility management method as in the first aspect, the second aspect, or the third aspect.

[0041] In a tenth aspect, the present disclosure provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the steps of the mobility management method as in the first aspect, the second aspect, or the third aspect.

[0042] In an eleventh aspect, the present disclosure provides a computer program product containing instructions. When it runs on a computer, it causes the computer to execute the steps of implementing the mobility management method as in the first aspect, the second aspect, or the third aspect.

[0043] For the mobility management method, mobility management device, mobility management system, electronic device, and computer-readable medium provided by the present disclosure, in the scenario where the UE is dual-registered to the first core network and the second core network, when the first core network allocates a TAI list for the UE, it can send the first TAI list allocated by itself to the second core network, and then receive the second TAI list allocated to the UE after negotiation with the second core network. At this time, in the process of allocating a TAI list for the UE once, the second TAI list jointly participated in the allocation by the first core network and the second core network is obtained through negotiation, thus simplifying the complex process of separately allocating a TAI list for the UE; and, the second TAI list is allocated through negotiation between the first core network and the second core network, which also avoids the situation where the UE frequently initiates signaling when moving between the first core network and the second core network, effectively reducing the network load and terminal energy consumption, and further improving the communication efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 is one of the flowcharts of the steps of the mobility management method provided by the embodiments of the present disclosure;

[0045] Figure 2 The second step flowchart of the mobility management method provided by the embodiments of the present disclosure;

[0046] Figure 3 The third step flowchart of the mobility management method provided by the embodiments of the present disclosure;

[0047] Figure 4 The fourth step flowchart of the mobility management method provided by the embodiments of the present disclosure;

[0048] Figure 5 The fifth step flowchart of the mobility management method provided by the embodiments of the present disclosure;

[0049] Figure 6 The first structural block diagram of a mobility management device provided by the embodiments of the present disclosure;

[0050] Figure 7 The second structural block diagram of a mobility management device provided by the embodiments of the present disclosure;

[0051] Figure 8 The third structural block diagram of a mobility management device provided by the embodiments of the present disclosure;

[0052] Figure 9 The architecture schematic diagram of a mobility management system provided by the embodiments of the present disclosure;

[0053] Figure 10 The first interaction process schematic diagram under a mobility management system provided by the embodiments of the present disclosure;

[0054] Figure 11 The second interaction process schematic diagram under a mobility management system provided by the embodiments of the present disclosure;

[0055] Figure 12 The third interaction process schematic diagram under a mobility management system provided by the embodiments of the present disclosure;

[0056] Figure 13 The fourth interaction process schematic diagram under a mobility management system provided by the embodiments of the present disclosure;

[0057] Figure 14 The structural schematic diagram of an electronic device provided by the embodiments of the present disclosure;

[0058] Figure 15 The hardware schematic diagram of an electronic device provided by the embodiments of the present disclosure. Detailed implementation manners

[0059] Next, the technical solutions in the embodiments of the present disclosure will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present disclosure.

[0060] The terms "first", "second", etc. in the description and claims of the present disclosure are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present disclosure can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are usually of the same type, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally means an "or" relationship between the associated objects before and after.

[0061] Figure 1 It is one of the step flowcharts of the mobility management method provided by the embodiments of the present disclosure. This method can be applied to the first core network, such as Figure 1 As shown, this method may include the following steps 101 to 102.

[0062] Step 101: Send the first TAI list allocated to the UE to the second core network; the UE is dual-registered to the first core network and the second core network.

[0063] In the embodiments of the present disclosure, the first core network and the second core network may be a core network combination formed by different types of core networks, such as pairwise combinations of 4G core networks, 5G core networks, 6G core networks, etc. The UE can adopt a dual-registration mode and register to the first core network and the second core network successively or simultaneously, so that the first core network and the second core network respectively support the communication services of the UE.

[0064] TA (Tracking Area) is obtained by dividing the global coverage area of the core network, and the TAI (Tracking Area Identity) can be used to uniquely identify the TA. When the first core network allocates a TA to the UE, the first TAI list corresponds to a group of TAs, where the first TAI list may include one or more TAIs, indicating that the first core network can support the communication services of the UE when it is located within the corresponding TA range. On this basis, the first core network can send the first TAI list to the second core network.

[0065] Step 102: Receive the second TAI list allocated to the UE after negotiation with the second core network.

[0066] In the embodiments of the present disclosure, after the first core network sends the first TAI list to the second core network, the first core network can negotiate with the second core network, and based on the negotiation, the first core network receives the second TAI list jointly allocated to the UE, indicating that the first core network and the second core network can support the communication services when the UE is located within the corresponding TA range.

[0067] Figure 2 This is the second step flowchart of the mobility management method provided by the embodiments of the present disclosure. This method can be applied to the first core network. Among them, this method can be applied to the functional network element responsible for mobility management under the first core network.

[0068] In the embodiments of the present disclosure, this method can be executed by the functional network element responsible for mobility management under the first core network, that is, the functional network element responsible for managing the location information, security, and service continuity of the UE, maintaining the connection state, and ensuring the quality of communication services. When the first core network adopts different systems, the corresponding functional network elements may also be different. For example, when the first core network is a 5G core network, the functional network element can be an AMF (Access and Mobility Management Function), when the first core network is a 4G core network, the functional network element can be an MME (Mobility Management Entity), and when the first core network is a 6G core network, the functional network element can be the functional network element responsible for mobility management under the 6G core network.

[0069] In an alternative method embodiment of the present disclosure, the first core network corresponds to a first RAT. The UE accesses the first core network through the first RAT, or the UE accesses the first core network through the second RAT; the second RAT is different from the first RAT.

[0070] In the embodiments of the present disclosure, the first core network has a corresponding first RAT. For example, when the first core network is a 5G core network, the first RAT is a 5G RAT, when the first core network is a 4G core network, the first RAT is a 4G RAT, and when the first core network is a 6G core network, the first RAT is a 6G RAT. On this basis, the UE can access the first core network through the first RAT, or can also access the first core network through the second RAT different from the first RAT. The embodiments of the present disclosure do not make specific limitations on this.

[0071] As Figure 2 shown, this method may include the following steps 201 to 206.

[0072] Step 201: Send the first TAI list allocated to the UE to the second core network; the UE is dual-registered to the first core network and the second core network.

[0073] In the embodiments of the present disclosure, Step 201 may refer to the relevant description of the foregoing Step 101 for corresponding reference. To avoid repetition, it will not be elaborated here.

[0074] In an optional method embodiment of the present disclosure, the first TAI list is used for the mobility management of the UE under the first core network.

[0075] In the embodiments of the present disclosure, the first TAI list allocated by the first core network to the UE can be used for the mobility management of the UE under the first core network. At this time, the UE can access the first core network through the first RAT or through the second RAT. However, the first core network does not directly send the first TAI list to the UE, but sends the first TAI list to the second core network for negotiation.

[0076] Step 202: Receive the second TAI list allocated to the UE after negotiation with the second core network.

[0077] In the embodiments of the present disclosure, Step 202 may refer to the foregoing Step 102 for corresponding reference. To avoid repetition, it will not be elaborated here.

[0078] In an optional method embodiment of the present disclosure, the foregoing Step 202 may specifically include receiving the second TAI list confirmed through negotiation with the second core network based on the first TAI list.

[0079] In the embodiments of the present disclosure, the second TAI list may be negotiated and confirmed by the first core network and the second core network on the basis of the first TAI list to retain or modify, so that the first core network and the second core network can support the communication service when the UE is located within the TA range corresponding to the second TAI list.

[0080] In an optional method embodiment of the present disclosure, at least part of the encoded content of the second TAI list is the same as that of the first TAI list.

[0081] In the embodiments of the present disclosure, the TAI included in the second TAI list and the TAI included in the first TAI list have at least partially the same encoded content, that is, the encoded content can be completely the same, or the encoded content can be partially the same and partially different. For example, if the first TAI list includes 1, 2, and 3, the second TAI list can be 1, 2, 3, or 1, 2, or 2, 3, 4. Among them, 1, 2, 3, and 4 are the TAI corresponding to the TA. Under the encoding rules of the same core network, the TAI uniquely identifies the TA, but under the encoding rules of different core networks, different TAIs may correspond to the same TA.

[0082] In an alternative method embodiment of the present disclosure, the second TAI list corresponds to the same coverage area under the first core network and the second core network.

[0083] In the embodiments of the present disclosure, the second TAI list may correspond to the same coverage area under the first core network and the second core network. On this basis, the one or more TAs corresponding to the TAI in the second TAI list under the first core network also correspond to the same one or more TAs under the second core network. Therefore, assuming that the UE performs mobility management based on the second TAI list, when moving back and forth between the combination of the first core network and the second core network, the consumption of sending signaling to request the allocation of the TAI list when changing from the TA under the first core network to a different TA under the second core network can be reduced.

[0084] In an alternative method embodiment of the present disclosure, when the first core network and the second core network negotiate and determine the second TAI list, the second TAI list can be sent to the UE. In one scenario, the first core network can, in response to the UE's request, send the second TAI list to the UE through a response message, and indicate to the UE a solution for mobility management based on the second TAI list according to specific service requirements and implementation conditions. Through additional indication, the second TAI list can be selectively applied to mobility management under the second core network to avoid unavailability caused by different TA planning of the radio network connected to the second core network and the first core network, or not adopting the second TAI list due to service requirement considerations, etc. The method may further include the following step 203 or step 204:

[0085] Step 203: Send a response message to the UE, where the response message includes the second TAI list.

[0086] Step 204: Send a response message to the UE, where the response message includes the second TAI list and an indication that the second TAI list is available under the second core network.

[0087] In the embodiments of the present disclosure, the first core network may send response messages with different contents to the UE according to the actual availability of the second TAI list under the second core network, so as to further indicate whether it can be used for the mobility management of the second core network. Specifically, taking the solution of step 203 or step 204 as an example, the second TAI list may be included in the response message, and the indication that the second TAI list is available under the second core network is not included, so as to indicate that the second TAI list is actually unavailable under the second core network, or the second TAI list is actually available under the second core network but is not used for the mobility management under the second core network; alternatively, the second TAI list and the indication that the second TAI list is available under the second core network may be included in the response message, indicating that the second TAI list is actually available under the second core network and can be used for the mobility management under the second core network.

[0088] In an alternative method embodiment of the present disclosure, the following steps 205 to 206 are included:

[0089] Step 205: Receive a third TAI list allocated by the second core network for the UE.

[0090] Step 206: Send a response message to the UE, where the response message includes the third TAI list.

[0091] In the embodiments of the present disclosure, the first core network may also receive the third TAI list sent by the second core network. The third TAI list may be allocated by the second core network for the UE based on its own coding rules and TA planning, so that the second core network can support the communication services when the UE is located within the TA range corresponding to the third TAI list. On this basis, the first core network may send a response message including the third TAI list to the UE.

[0092] In an alternative method embodiment of the present disclosure, the third TAI list is used for the UE to perform mobility management under the second core network.

[0093] In the embodiments of the present disclosure, the third TAI list sent by the first core network to the UE is allocated by the second core network to the UE and can be used for the UE to perform mobility management under the second core network.

[0094] It should be noted that steps 203, 204, or steps 205 to 206 provided in the embodiments of the present disclosure can be independently or combinedly implemented in practical applications to flexibly meet the mobility management requirements in different scenarios. For example, the first core network sends a response message to the UE, and the response message can include a second TAI list, or can include a third TAI list, or can include a second TAI list and a third TAI list, or can include an indication that the second TAI list is available under the second core network, etc. The embodiments of the present disclosure do not make specific limitations thereto.

[0095] In an alternative method embodiment of the present disclosure, the coverage areas of the third TAI list and the second TAI list overlap.

[0096] In the embodiments of the present disclosure, the third TAI list is allocated based on the coding rules and TA planning of the second core network, and the second TAI list is allocated through negotiation between the first core network and the second core network. On this basis, the actual coverage area corresponding to the third TAI list can overlap with the actual coverage area corresponding to the second TAI list. At this time, when the user moves under the coverage area of the second TAI list, the user is actually also moving under the coverage area of the third TAI list, thereby avoiding the loss of multiple signaling initiations during the movement process.

[0097] In an alternative method embodiment of the present disclosure, the response message includes any one of a re-registration acceptance message and a location update acceptance message.

[0098] In the embodiments of the present disclosure, the first core network can allocate a first TAI list to the UE based on the UE's request, and further negotiate with the second core network to allocate a second TAI list to the UE. For different request types, the first core network can send a corresponding response message to the UE, and provide the second TAI list and / or the third TAI list to the UE in the response message. For example, the response message can be a re-registration acceptance message indicating acceptance of the UE's re-registration request, or the response message can also be a location update message indicating that the TA where the UE is located has been updated.

[0099] In the mobility management method provided by the present disclosure, in the scenario where a UE is dual-registered to a first core network and a second core network, when the first core network allocates a TAI list for the UE, it can send the first TAI list allocated by itself to the second core network, and then receive the second TAI list allocated to the UE after negotiation with the second core network. At this time, in the process of allocating a TAI list for the UE once, the second TAI list jointly participated in the allocation by the first core network and the second core network is obtained through negotiation, thus simplifying the complex process of separately allocating a TAI list for the UE; and, the second TAI list is allocated through negotiation between the first core network and the second core network, which also avoids the situation where the UE frequently initiates signaling when moving between the first core network and the second core network, effectively reducing the network load and terminal energy consumption, and then improving the communication efficiency.

[0100] Figure 3 It is the third step flowchart of the mobility management method provided by the embodiments of the present disclosure. This method can be applied to the second core network. This method may include the following steps 301 to step 302.

[0101] Step 301: Receive the first TAI list sent by the first core network; the first TAI list is allocated by the first core network for the UE, and the UE is dual-registered to the first core network and the second core network.

[0102] In the embodiments of the present disclosure, the first core network, the second core network, and the first TAI list may be correspondingly referred to the relevant descriptions in the foregoing step 101. To avoid repetition, they will not be elaborated here. The second core network can receive the first TAI list allocated by the first core network for the UE for subsequent negotiation.

[0103] Step 302: Send the second TAI list allocated to the UE after negotiation to the first core network.

[0104] In the embodiments of the present disclosure, after the second core network receives the first TAI list sent by the first core network, the second core network can negotiate with the first core network and send the second TIA list jointly allocated to the UE to the first core network on the basis of the negotiation, indicating that the first core network and the second core network can support the communication services when the UE is located within the corresponding TA range.

[0105] Figure 4 It is the fourth step flowchart of the mobility management method provided by the embodiments of the present disclosure. This method can be applied to the second core network. Among them, this method can be applied to the functional network element responsible for mobility management under the second core network.

[0106] In the embodiments of the present disclosure, the method may be executed by a functional network element responsible for mobility management in the second core network, that is, a functional network element responsible for managing the location information, security, and service continuity of the UE, maintaining the connection state, and ensuring the quality of communication services. When the second core network adopts different systems, the corresponding functional network elements may also be different. For example, when the second core network is a 5G core network, the functional network element may be an AMF (Access and Mobility Management Function), when the second core network is a 4G core network, the functional network element may be an MME (Mobility Management Entity), and when the second core network is a 6G core network, the functional network element may be a functional network element responsible for mobility management in the 6G core network.

[0107] It should be noted that the second core network may refer to the relevant description of the first core network in the foregoing Figure 2 for reference, but the systems of the second core network and the first core network are different.

[0108] The method may include the following steps 401 to 406.

[0109] Step 401: Receive a first TAI list sent by the first core network; the first TAI list is allocated by the first core network for the UE, and the UE is dual-registered to the first core network and the second core network.

[0110] In the embodiments of the present disclosure, step 401 may refer to the relevant description of step 301 in the foregoing for reference. To avoid repetition, it will not be elaborated here.

[0111] Step 402: Send a second TAI list negotiated and confirmed based on the first TAI list to the first core network.

[0112] In the embodiments of the present disclosure, step 402 may refer to the relevant description of step 302 in the foregoing for reference. To avoid repetition, it will not be elaborated here.

[0113] In the embodiments of the present disclosure, the second TAI list may be negotiated and confirmed by the first core network and the second core network on the basis of the first TAI list to be reserved or modified, so that the first core network and the second core network can support communication services when the UE is located within the TA range corresponding to the second TAI list.

[0114] Step 403: Send the second TAI list negotiated and confirmed based on the first TAI list to the first core network, as well as an indication that the second TAI list is available under the second core network.

[0115] In an embodiment of the present disclosure, the second core network may instruct the first core network according to specific service requirements and implementation conditions. The second TAI list can be used for mobility management under the second core network. Through additional instructions, the second TAI list can be selectively applied to mobility management under the second core network to avoid situations where the TAI planning of the radio access network connected to the second core network and the first core network is different and unavailable, or the second TAI list is not adopted due to service requirements considerations, etc.

[0116] At this time, the second core network sends the second TAI list negotiated and confirmed based on the first TAI list, and an indication that the second TAI list is available under the second core network. Then, the second TAI list is actually used for the second core network in addition to being actually applied to the first core network.

[0117] On this basis, when the second core network sends the second TAI list but does not send an indication that the second TAI list is available under the second core network, regardless of whether the TAs corresponding to the second TAI list conform to the coding rules and TA planning of the second core network, the second TAI list is not actually used for the second core network on the basis of being actually applied to the first core network. For specific reference, please refer to the relevant descriptions in step 203 or step 204 above. To avoid repetition, it will not be elaborated here.

[0118] In an optional method embodiment of the present disclosure, after step 403, the following step 404 may be included.

[0119] Step 404: Paging the UE within the second TAI list.

[0120] In an embodiment of the present disclosure, after the second core network sends the second TAI list and an indication that the second TAI list is available under the second core network to the first core network, it means that the second TAI list can be used for mobility management under the second core network. On this basis, the second core network can page the UE within the second TAI list to activate the UE from the idle state.

[0121] In an optional method embodiment of the present disclosure, the second TAI list corresponds to the same coverage area under the first core network and the second core network.

[0122] In the embodiments of the present disclosure, the second TAI list may correspond to the same coverage area under the first core network and the second core network. On this basis, one or more TAs corresponding to the TAI in the second TAI list under the first core network also correspond to the same one or more TAs under the second core network. Therefore, assuming that the UE performs mobility management based on the second TAI list, when moving back and forth between the combination of the first core network and the second core network, the consumption of sending signaling to request the allocation of the TAI list when moving from a TA under the first core network to a different TA under the second core network can be reduced.

[0123] In an alternative method embodiment of the present disclosure, the method may further include step 405 as follows.

[0124] Step 405: Send the third TAI list allocated for the UE to the first core network.

[0125] In the embodiments of the present disclosure, the second core network may also allocate a third TAI list for the UE and send the third TAI list to the first core network. The third TAI list includes a set of TAIs under the coding rules of the second core network, which respectively and uniquely identify a TA under the radio access network plan connected to the second core network. Thus, the second core network can support the communication services of the UE when the UE is located within the TA range corresponding to the third TAI list.

[0126] In an alternative method embodiment of the present disclosure, the third TAI list is used for the UE to perform mobility management under the second core network.

[0127] In the embodiments of the present disclosure, the third TAI list sent by the second core network to the first core network may be sent by the first core network to the UE for the UE to perform mobility management under the second core network.

[0128] In an alternative method embodiment of the present disclosure, the coverage area of the third TAI list coincides with that of the second TAI list.

[0129] In the embodiments of the present disclosure, the third TAI list is allocated based on the coding rules and TA plan of the second core network, and the second TAI list is allocated through negotiation between the first core network and the second core network. On this basis, the actually corresponding coverage area of the third TAI list may coincide with the actually corresponding coverage area of the second TAI list. At this time, when the user moves under the coverage area of the second TAI list, the user is actually moving under the coverage area of the third TAI list, thus avoiding the loss of multiple signaling initiations during the movement process.

[0130] In an alternative method embodiment of the present disclosure, after step 405, step 406 as follows may further be included.

[0131] Step 406: Page the UE within the third TAI list range.

[0132] In the embodiment of the present disclosure, after the second core network sends the third TAI list to the first core network, it indicates that the third TAI list can be used for mobility management under the second core network. On this basis, the second core network can page the UE within the third TAI list range to activate the UE from the idle state.

[0133] In the mobility management method provided by the present disclosure, in the scenario where the UE is dual-registered to the first core network and the second core network, the second core network can receive the first TAI list sent by the first core network, where the first TAI list is allocated by the first core network to the UE, and send the second TAI list allocated to the UE to the first core network on the basis of negotiation with the first core network. At this time, in the process of allocating the TAI list for the UE once, the second TAI list jointly participated in the allocation by the first core network and the second core network is obtained through negotiation, thus simplifying the complex process of separately allocating the TAI list for the UE; moreover, the second TAI list is allocated through negotiation between the first core network and the second core network, which also avoids the situation of frequently initiating signaling when the UE moves between the first core network and the second core network, effectively reducing the network load and terminal energy consumption, and further improving the communication efficiency.

[0134] Figure 5 This is the fifth step flowchart of the mobility management method provided by the embodiment of the present disclosure. This method can be applied to the UE. Among them, the UE is dual-registered to the first core network and the second core network. This method may include the following steps 501 to step 502.

[0135] Step 501: Receive a response message sent by the first core network; the response message includes a second TAI list confirmed through negotiation between the first core network and the second core network; and / or, the response message includes a third TAI list allocated by the second core network for the UE.

[0136] In the embodiment of the present disclosure, the UE is dual-registered to the first core network and the second core network, and receives the response message through the first core network without the need to independently request through the second core network additionally. Among them, the response message sent by the first core network may include a second TAI list confirmed through negotiation between the first core network and the second core network, or a third TAI list allocated by the second core network for the UE, or the second TAI list and the third TAI list, so as to flexibly adapt to different implementation conditions and service requirements.

[0137] Step 502: Perform corresponding mobility management based on the response message.

[0138] In an embodiment of the present disclosure, the UE may perform corresponding mobility management based on the TAI list in the response message, and perform mobility management based on the TAI list provided by the first core network in the response message. According to different types of the TAI list, the UE may perform different mobility management schemes.

[0139] In an optional embodiment of the present disclosure, the response message includes a second TAI list negotiated and confirmed by the first core network and the second core network, and step 502 may include the following step A.

[0140] Step A: Perform mobility management under the first core network based on the second TAI list.

[0141] In an embodiment of the present disclosure, when the response message sent by the first core network includes a second TAI list, the second TAI list is obtained through negotiation after the first core network sends the first TAI list allocated to the UE to the second core network, indicating that the UE may perform mobility management under the first core network based on the second TAI list.

[0142] In an optional embodiment of the present disclosure, the response message includes a third TAI list allocated by the second core network to the UE, and step 502 may include the following step B.

[0143] Step B: Perform mobility management under the second core network based on the third TAI list.

[0144] In an embodiment of the present disclosure, when the response message sent by the first core network includes a third TAI list, the third TAI list is obtained by the second core network allocating it to the UE, indicating that the UE may perform mobility management under the second core network based on the third TAI list.

[0145] In an optional embodiment of the present disclosure, the response message includes a second TAI list negotiated and confirmed by the first core network and the second core network, and the response message further includes an indication that the second TAI list is available under the second core network. Step 502 may include the following step C.

[0146] Step C: Perform mobility management under the first core network based on the second TAI list, and perform mobility management under the second core network based on the second TAI list.

[0147] In an embodiment of the present disclosure, when the response message sent by the first core network includes a second TAI list negotiated and confirmed by the first core network and the second core network, and also includes an indication that the second TAI list is available under the second core network, it means that the UE can perform mobility management under the first core network based on the second TAI list, and can also perform mobility management under the second core network based on the second TAI list. At this time, the UE can perform corresponding mobility management according to the actual scenario.

[0148] In an alternative method embodiment of the present disclosure, the second TAI list corresponds to the same coverage area under the first core network and the second core network.

[0149] In an embodiment of the present disclosure, the second TAI list may correspond to the same coverage area under the first core network and the second core network. On this basis, one or more TAs corresponding to the TAI in the second TAI list under the first core network also correspond to the same one or more TAs under the second core network. Therefore, assuming that the UE performs mobility management based on the second TAI list and moves back and forth between the combinations of the first core network and the second core network, the consumption of sending signaling to request allocation of the TAI list when moving from a TA under the first core network to a different TA under the second core network is reduced.

[0150] In an alternative method embodiment of the present disclosure, the coverage area of the third TAI list coincides with that of the second TAI list.

[0151] In an embodiment of the present disclosure, the third TAI list is allocated based on the coding rules and TA planning of the second core network, and the second TAI list is allocated through negotiation between the first core network and the second core network. On this basis, the actual coverage area corresponding to the third TAI list can coincide with the actual coverage area corresponding to the second TAI list. At this time, when the user moves under the coverage area of the second TAI list, the user is actually moving under the coverage area of the third TAI list, thus avoiding the loss of multiple signaling initiations during the movement.

[0152] The mobility management method provided by the present disclosure is applicable to the scenario where a UE is dual-registered to a first core network and a second core network. The UE can receive a response message sent by the first core network, where the response message may include a second TAI list negotiated and confirmed by the first core network and the second core network, or a third TAI list allocated by the second core network for the UE, or the second TAI list and the third TAI list. Based on this, the UE can perform mobility management based on the response message. At this time, in the process of allocating a TAI list for the UE once, a second TAI list jointly allocated by the first core network and the second core network is obtained through negotiation, thus simplifying the complex process of separately allocating the TAI list for the UE. Moreover, since the second TAI list is allocated through negotiation between the first core network and the second core network, it also avoids the situation where the UE frequently initiates signaling when moving between the first core network and the second core network, effectively reducing the network load and terminal power consumption, and thus improving the communication efficiency.

[0153] Figure 6 FIG. 4 is one of the structural block diagrams of a mobility management device 600 provided by an embodiment of the present disclosure. The device can be applied to the first core network and may include: a first sending module 601, configured to send a first TAI list allocated for the UE to the second core network; the UE is dual-registered to the first core network and the second core network; a first receiving module 602, configured to receive a second TAI list allocated to the UE after negotiation with the second core network; the second TAI list corresponds to the same coverage area under the first core network and the second core network.

[0154] In an optional device embodiment of the present disclosure, the first sending module 601 is further configured to send a response message to the UE, where the response message includes the second TAI list.

[0155] In an optional device embodiment of the present disclosure, the first sending module 601 is further configured to send a response message to the UE, where the response message includes the second TAI list and an indication that the second TAI list is available under the second core network.

[0156] In an optional device embodiment of the present disclosure, the second TAI list corresponds to the same coverage area under the first core network and the second core network.

[0157] In an optional device embodiment of the present disclosure, the first receiving module 602 is further configured to receive a third TAI list allocated by the second core network for the UE; and the first sending module 601 is further configured to send a response message to the UE, where the response message includes the third TAI list.

[0158] In an optional device embodiment of the present disclosure, the third TAI list is used for the UE to perform mobility management under the second core network.

[0159] In an optional device embodiment of the present disclosure, the coverage area of the third TAI list coincides with that of the second TAI list.

[0160] In an optional device embodiment of the present disclosure, the first sending module 601 is specifically configured to receive the second TAI list obtained through negotiation and confirmation with the second core network based on the first TAI list.

[0161] In an optional device embodiment of the present disclosure, at least part of the encoded content of the second TAI list is the same as that of the first TAI list.

[0162] In an optional device embodiment of the present disclosure, the device is applied to a functional network element responsible for mobility management under the first core network.

[0163] In an optional device embodiment of the present disclosure, the first TAI list is used for the UE's mobility management under the first core network.

[0164] In an optional device embodiment of the present disclosure, the first core network corresponds to a first radio access technology (RAT); the UE accesses the first core network through the first RAT, or the UE accesses the first core network through the second RAT; the second RAT is different from the first RAT.

[0165] In an optional device embodiment of the present disclosure, the response message includes any one of a re-registration acceptance message and a location update acceptance message.

[0166] The mobility management device provided by the embodiments of the present disclosure is applied to the first core network. In the scenario where the UE is dual-registered to the first core network and the second core network, when the first core network allocates the TAI list for the UE, it can send the first TAI list allocated by itself to the second core network, and then receive the second TAI list allocated to the UE after negotiation with the second core network. At this time, in the process of allocating the TAI list for the UE once, the second TAI list jointly participated in the allocation by the first core network and the second core network is obtained through negotiation, thus simplifying the complex process of separately allocating the TAI list for the UE; and, the second TAI list is allocated through negotiation between the first core network and the second core network, which also avoids the situation where the UE frequently initiates signaling when moving between the first core network and the second core network, effectively reducing the network load and terminal energy consumption, and thus improving the communication efficiency.

[0167] Figure 7FIG. 0 is a second structural block diagram of a mobility management apparatus 700 provided by an embodiment of the present disclosure. The apparatus may be applied to a second core network and may include: a second receiving module 701, configured to receive a first TAI list sent by a first core network; the first TAI list is allocated by the first core network for a UE, and the UE is dual-registered to the first core network and the second core network; a second sending module 702, configured to send a second TAI list allocated after negotiation to the first core network; the second TAI list corresponds to the same coverage area under the first core network and the second core network.

[0168] In an optional apparatus embodiment of the present disclosure, the second TAI list corresponds to the same coverage area under the first core network and the second core network.

[0169] In an optional apparatus embodiment of the present disclosure, the second sending module 702 is specifically configured to send a second TAI list negotiated and confirmed based on the first TAI list to the first core network.

[0170] In an optional apparatus embodiment of the present disclosure, the second sending module 702 is specifically configured to send a second TAI list negotiated and confirmed based on the first TAI list to the first core network, and an indication that the second TAI list is available under the second core network.

[0171] In an optional apparatus embodiment of the present disclosure, the apparatus further includes a paging module, configured to page the UE within the range of the second TAI list.

[0172] In an optional apparatus embodiment of the present disclosure, the second sending module 702 is further configured to send a third TAI list allocated for the UE to the first core network.

[0173] In an optional apparatus embodiment of the present disclosure, the third TAI list is used for the UE to perform mobility management under the second core network.

[0174] In an optional apparatus embodiment of the present disclosure, the coverage area of the third TAI list coincides with that of the second TAI list.

[0175] In an optional apparatus embodiment of the present disclosure, the apparatus further includes a paging module, configured to page the UE within the range of the third TAI list.

[0176] In an optional apparatus embodiment of the present disclosure, the apparatus is applied to a functional network element responsible for mobility management under the second core network.

[0177] The mobility management device provided by an embodiment of the present disclosure is applied to a second core network. In a scenario where a UE is dual-registered to a first core network and a second core network, the second core network can receive a first TAI list sent by the first core network. The first TAI list is allocated by the first core network to the UE, and based on negotiation with the first core network, the second TAI list allocated to the UE is sent to the first core network. At this time, in a process of allocating a TAI list for the UE once, a second TAI list jointly allocated by the first core network and the second core network is obtained through negotiation, thereby simplifying the complex process of separately allocating a TAI list to the UE; and, the second TAI list is allocated through negotiation between the first core network and the second core network, which also avoids the situation that the UE frequently initiates signaling when moving between the first core network and the second core network, effectively reducing the network load and terminal energy consumption, and further improving the communication efficiency.

[0178] Figure 8 FIG. 3 is a block diagram of a mobility management device 800 provided by an embodiment of the present disclosure. The device can be applied to a UE that is dual-registered to a first core network and a second core network. The device may include: a third receiving module 801, configured to receive a response message sent by the first core network; the response message includes a second TAI list negotiated and confirmed by the first core network and the second core network; and / or, the response message includes a third TAI list allocated by the second core network to the UE; a mobility management module 802, configured to perform corresponding mobility management based on the response message; wherein, the second TAI list corresponds to the same coverage area under the first core network and the second core network.

[0179] In an optional device embodiment of the present disclosure, the response message includes a second TAI list negotiated and confirmed by the first core network and the second core network. The mobility management module 802 is specifically configured to perform mobility management under the first core network based on the second TAI list.

[0180] In an optional device embodiment of the present disclosure, the response message includes a third TAI list allocated by the second core network to the UE. The mobility management module 802 is specifically configured to perform mobility management under the second core network based on the third TAI list.

[0181] In an optional device embodiment of the present disclosure, the response message includes a second TAI list negotiated and confirmed by the first core network and the second core network, and the response message further includes an indication that the second TAI list is available under the second core network. The mobility management module 802 is specifically configured to perform mobility management under the first core network based on the second TAI list, and perform mobility management under the second core network based on the second TAI list.

[0182] In an optional device embodiment of the present disclosure, the second TAI list corresponds to the same coverage area under the first core network and the second core network.

[0183] In an optional device embodiment of the present disclosure, the coverage area of the third TAI list coincides with that of the second TAI list.

[0184] In the mobility management device provided by the embodiments of the present disclosure, in the scenario where the UE is dual-registered to the first core network and the second core network, the UE can receive a response message sent by the first core network. The response message may include the second TAI list negotiated and confirmed by the first core network and the second core network, or the third TAI list allocated by the second core network for the UE, or the second TAI list and the third TAI list. On this basis, the UE can perform mobility management based on the response message. At this time, in the process of allocating the TAI list for the UE once, the second TAI list jointly participated in the allocation by the first core network and the second core network is negotiated, thus simplifying the complex process of separately allocating the TAI list for the UE; and, the second TAI list is allocated through negotiation between the first core network and the second core network, which also avoids the situation of the UE frequently initiating signaling when moving between the first core network and the second core network, effectively reducing the network load and terminal energy consumption, and further improving the communication efficiency.

[0185] Figure 9 FIG. 11 is a schematic architecture diagram of a mobility management system 900 provided by the embodiments of the present disclosure. The system may include a first core network 901, a second core network 902, and a UE 903, and the UE 903 is dual-registered to the first core network 901 and the second core network 902. Among them, the first core network 901 may be used to execute any of the foregoing Figures 1 to 2 mobility management methods; the second core network 902 may be used to execute any of the foregoing Figures 3 to 4 mobility management methods; the UE 903 may be used to execute the foregoing Figure 5 mobility management method. The first core network 901, the second core network 902, and the UE 903 interact based on the foregoing mobility management method, so as to achieve the effects of simplifying the process and reducing the signaling initiation, and further reduce the network load and terminal energy consumption, and improve the communication efficiency.

[0186] Exemplarily, the UE 901 may access the first core network 901 through the RAT 904, and access the second core network 903 through the RAT 905. Among them, the RAT 904 and the RAT 905 are different.

[0187] In the embodiments of the present disclosure, a scenario where the UE's location changes during movement is used as an example. At this time, the UE may send a request for re-registration or location update to the first core network. In the mobility management system, there are a first core network, a second core network, and a UE. The first core network corresponds to RAT 1, the second core network corresponds to RAT 2, and the UE is double-registered to the first core network and the second core network through RAT 1 and RAT 2 successively or simultaneously. Figure 10 One of the schematic diagrams of the interaction process under a mobility management system provided by the embodiments of the present disclosure, as Figure 10 shown, the interaction process may include the following steps 1001 to step 1006.

[0188] Step 1001: The UE sends a request for re-registration or location update to the first core network through RAT 1.

[0189] Step 1002: The first core network allocates a first TAI list to the UE.

[0190] Step 1003: The first core network sends the first TAI list to the second core network for negotiation.

[0191] Step 1004: The second core network sends a confirmation of the second TAI list jointly allocated to the UE to the first core network.

[0192] Step 1005: The first core network sends the second TAI list to the UE through a response message.

[0193] Step 1006: The UE performs mobility management under the first core network based on the second TAI list.

[0194] Figure 11 Another schematic diagram of the interaction process under a mobility management system provided by the embodiments of the present disclosure, as Figure 11 shown, the interaction process may include the following steps 1101 to step 1108.

[0195] Step 1101: The UE sends a request for re-registration or location update to the first core network through RAT 1.

[0196] Step 1102: The first core network allocates a first TAI list to the UE.

[0197] Step 1103: The first core network sends the first TAI list to the second core network for negotiation.

[0198] Step 1104: The second core network sends a confirmation of the second TAI list jointly allocated to the UE to the first core network, and an indication that the second TAI list can be used by the second core network.

[0199] Step 1105: The first core network sends the second TAI list to the UE through a response message, as well as an indication that the second TAI list can be used by the second core network.

[0200] Step 1106: The UE performs mobility management under the first core network based on the second TAI list.

[0201] Step 1107: The UE performs mobility management under the second core network based on the second TAI list.

[0202] On this basis, the method may further include the following step 1108.

[0203] Step 1108: When the second core network receives the downlink data corresponding to the UE, it paging the UE within the range of the second TAI list through RAT 2.

[0204] Figure 12 This is the third schematic diagram of the interaction process under a mobility management system provided by an embodiment of the present disclosure. As Figure 12 shown, the interaction process may include the following steps 1201 to step 1207.

[0205] Step 1201: The UE sends a request for re-registration or location update to the first core network through RAT 1.

[0206] Step 1202: The first core network allocates a first TAI list to the UE.

[0207] Step 1203: The first core network sends the first TAI list to the second core network for negotiation.

[0208] Step 1204: The second core network sends the second TAI list jointly allocated to the UE to the first core network, as well as the third TAI list allocated to the UE by the second core network.

[0209] Step 1205: The first core network sends the third TAI list to the UE through a response message.

[0210] Step 1206: The UE performs mobility management under the second core network based on the third TAI list.

[0211] On this basis, the method may further include the following step 1207.

[0212] Step 1207: When the second core network receives the downlink data corresponding to the UE, it paging the UE within the range of the third TAI list through RAT 2.

[0213] Figure 13This is the fourth schematic diagram of the interaction process under a mobility management system provided by an embodiment of the present disclosure. As Figure 13 shown, the interaction process may include the following steps 1301 to 1308.

[0214] Step 1301: The UE sends a request for re-registration or location update to the first core network through RAT 1.

[0215] Step 1302: The first core network allocates a first TAI list to the UE.

[0216] Step 1303: The first core network sends the first TAI list to the second core network for negotiation.

[0217] Step 1304: The second core network sends the second TAI list jointly allocated to the UE and the third TAI list allocated to the UE by the second core network to the first core network.

[0218] Step 1305: The first core network sends the second TAI list and the third TAI list to the UE through a response message.

[0219] Step 1306: The UE performs mobility management under the first core network based on the second TAI list.

[0220] Step 1307: The UE performs mobility management under the second core network based on the third TAI list.

[0221] On this basis, the method may further include the following step 1308.

[0222] Step 1308: When the second core network receives the downlink data corresponding to the UE, it paging the UE within the range of the third TAI list through RAT 2.

[0223] In the mobility management system provided by the embodiment of the present disclosure, in the scenario where the UE is dual-registered to the first core network and the second core network, when the first core network allocates a TAI list for the UE, it may send the first TAI list allocated by itself to the second core network, and then receive the second TAI list allocated to the UE after negotiation with the second core network. At this time, in the process of allocating a TAI list for the UE once, the second TAI list jointly participated in the allocation by the first core network and the second core network is obtained through negotiation, thus simplifying the complex process of separately allocating a TAI list for the UE; and, the second TAI list is allocated through negotiation between the first core network and the second core network, which also avoids the situation of frequently initiating signaling when the UE moves between the first core network and the second core network, effectively reducing the network load and terminal energy consumption, and then improving the communication efficiency.

[0224] Figure 14 A schematic structural diagram of an electronic device 1400 provided by an embodiment of the present disclosure is shown as Figure 14 shown. The electronic device 1400 may include a processor 1401, a memory 1402, and a program or instruction stored on the memory 1402 and executable on the processor 1401. When the program or instruction is executed by the processor 1401, it implements each process of the above-mentioned signaling interworking embodiment and can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0225] It should be noted that Figure 14 the shown electronic device 1400 is only an example and should not bring any limitation to the functions and usage scope of the embodiments of the present disclosure.

[0226] Figure 15 A hardware schematic diagram of an electronic device 1500 provided by an embodiment of the present disclosure is shown as Figure 15 shown. The electronic device 1500 includes a central processing unit (CPU) 1501, which can execute various appropriate actions and processes according to a program stored in a ROM (Read Only Memory) 1502 or a program loaded from a storage section 1508 into a RAM (Random Access Memory) 1503. In the RAM 1503, various programs and data required for system operations are also stored. The CPU 1501, the ROM 1502, and the RAM 1503 are connected to each other via a bus 1504. An I / O (Input / Output) interface 1505 is also connected to the bus 1504.

[0227] The following components are connected to the I / O interface 1505: an input section 1506 including a keyboard, a mouse, etc.; an output section 1507 including such as a CRT (Cathode Ray Tube), an LCD (Liquid Crystal Display), etc. and a speaker, etc.; a storage section 1508 including a hard disk, etc.; and a communication section 1509 including a network interface card such as a LAN (Local Area Network) card, a modem, etc. The communication section 1509 performs communication processing via a network such as the Internet. A drive 1510 is also connected to the I / O interface 1505 as needed. A removable medium 1511, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 1510 as needed so that a computer program read from it can be installed into the storage section 1508 as needed.

[0228] In particular, according to an embodiment of the present disclosure, the processes described below with reference to the flowcharts can be implemented as computer software programs. For example, an embodiment of the present disclosure includes a computer program product that includes a computer program carried on a computer-readable medium, and the computer program contains program codes for executing the methods shown in the flowcharts. In such an embodiment, the computer program can be downloaded and installed from a network through the communication part 1509, and / or installed from the removable medium 1511. When the computer program is executed by the central processing unit (CPU 1501), various functions defined in the system of the present application are executed.

[0229] An embodiment of the present disclosure also provides a computer-readable medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the above-mentioned signaling interworking embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be elaborated here.

[0230] Among them, the processor is the processor in the electronic device in the above-mentioned embodiment. The computer-readable medium includes computer-readable media such as ROM, RAM, magnetic disks, or optical discs.

[0231] An embodiment of the present disclosure further provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor, and the processor is used to run the program or instruction to implement each process of the above-mentioned signaling interworking embodiment, and the same technical effect can be achieved. To avoid repetition, it will not be elaborated here.

[0232] It should be understood that the chip mentioned in the embodiment of the present disclosure can also be referred to as a system-on-chip, system chip, chip system, or system-on-a-chip, etc.

[0233] An embodiment of the present disclosure provides a computer program product containing instructions. When it runs on a computer, it causes the computer to execute the steps of the signaling interworking as described above, and the same technical effect can be achieved. To avoid repetition, it will not be elaborated here.

[0234] It should be noted that in this text, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or apparatus comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or apparatus. Without further limitation, an element defined by the phrase "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising such element. In addition, it should be pointed out that the scope of the methods and apparatuses in the embodiments of the present disclosure is not limited to performing functions in the order shown or discussed, but may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0235] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-described example methods can be implemented by means of software plus a necessary general hardware platform. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation. Based on such an understanding, the technical solution of the present disclosure, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions for causing a terminal (which may be a mobile phone, computer, electronic device, air conditioner, or network device, etc.) to execute the methods of the various embodiments of the present disclosure.

[0236] The embodiments of the present disclosure have been described above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present disclosure, those of ordinary skill in the art can also make many forms without departing from the purpose of the present disclosure and the scope protected by the claims, and all of them fall within the protection scope of the present disclosure.

Claims

1. A mobility management method, characterized in that: The method is applied to a first core network, and the method includes: Sending a first tracking area identity list TAI list allocated to a user equipment UE to a second core network; the UE is dual-registered with the first core network and the second core network; Receive a second TAI list allocated to the UE after negotiation with the second core network.

2. The method according to claim 1, characterized in that: The method further comprises: Send a response message to the UE, where the response message includes the second TAI list.

3. The method according to claim 1, characterized in that The method further comprises: A response message is sent to the UE, where the response message includes the second TAI list and an indication that the second TAI list is available in the second core network.

4. The method according to claim 3, characterized in that The second TAI list corresponds to the same coverage area in the first core network and the second core network.

5. The method according to claim 1, characterized in that The method further comprises: receiving a third TAI list allocated by the second core network to the UE; Send a response message to the UE, where the response message includes the third TAI list.

6. The method according to claim 5, characterized in that The third TAI list is used for UE to perform mobility management in the second core network.

7. The method according to claim 5, characterized in that The coverage area of ​​the third TAI list overlaps with the coverage area of ​​the second TAI list.

8. The method according to claim 1, characterized in that The receiving a second TAI list allocated to the UE after negotiation with the second core network includes: Receive the second TAI list negotiated and confirmed with the second core network based on the first TAI list.

9. The method according to any one of claims 1 to 8, characterized in that: The encoded content of the second TAI list is at least partially identical to that of the first TAI list.

10. The method according to any one of claims 1 to 8, characterized in that: The method is applied to a functional network element responsible for mobility management under the first core network.

11. The method according to any one of claims 1 to 8, characterized in that: The first TAI list is used for mobility management of the UE in the first core network.

12. The method according to any one of claims 1 to 8, characterized in that: The first core network corresponds to a first radio access technology RAT; The UE accesses the first core network through the first RAT, or the UE accesses the first core network through a second RAT; the second RAT is different from the first RAT.

13. The method according to any one of claims 3 to 7, characterized in that: The response message includes any one of a re-registration acceptance message and a location update acceptance message.

14. A mobility management method, characterized in that: The method is applied to the second core network, and the method includes: receiving a first TAI list sent by a first core network; the first TAI list is allocated by the first core network to the UE, and the UE is dual-registered with the first core network and the second core network; Sending a second TAI list assigned to the UE after negotiation to the first core network.

15. The method according to claim 14, characterized in that The second TAI list corresponds to the same coverage area in the first core network and the second core network.

16. The method according to claim 14, characterized in that The sending, to the first core network, a second TAI list allocated to the UE after negotiation, includes: Sending to the first core network the second TAI list negotiated and confirmed based on the first TAI list.

17. The method according to claim 14, characterized in that The sending, to the first core network, a second TAI list allocated to the UE after negotiation, includes: Sending to the first core network the second TAI list negotiated and confirmed based on the first TAI list, and an indication that the second TAI list is available in the second core network.

18. The method according to claim 17, characterized in that The method further comprises: Paging the UE within the scope of the second TAI list.

19. The method according to claim 14, characterized in that The method further comprises: Send a third TAI list allocated to the UE to the first core network.

20. The method according to claim 19, characterized in that The third TAI list is used for the UE to perform mobility management in the second core network.

21. The method according to claim 19, characterized in that The coverage area of ​​the third TAI list overlaps with the coverage area of ​​the second TAI list.

22. The method according to claim 19, characterized in that The method further comprises: The UE is paged within the range of the third TAI list.

23. The method according to claim 14, characterized in that The method is applied to a functional network element responsible for mobility management under the second core network.

24. A mobility management method, characterized in that: The method is applied to a UE, the UE is dual-registered with a first core network and a second core network, and the method includes: receiving a response message sent by the first core network; the response message including a second TAI list negotiated and confirmed by the first core network and the second core network; and / or the response message including a third TAI list allocated by the second core network to the UE; Corresponding mobility management is performed based on the response message.

25. The method according to claim 24, characterized in that The response message includes the second TAI list negotiated and confirmed by the first core network and the second core network, and the performing corresponding mobility management based on the response message includes: Mobility management is performed in the first core network based on the second TAI list.

26. The method according to any one of claims 24 to 25, characterized in that The response message includes a third TAI list allocated by the second core network to the UE, and the performing corresponding mobility management based on the response message includes: Mobility management is performed in the second core network based on the third TAI list.

27. The method according to claim 24, characterized in that The response message includes the second TAI list negotiated and confirmed by the first core network and the second core network, and the response message also includes an indication that the second TAI list is available in the second core network, and the performing corresponding mobility management based on the response message includes: Mobility management is performed in the first core network based on the second TAI list, and mobility management is performed in the second core network based on the second TAI list.

28. The method according to any one of claims 24, 25 and 27, characterized in that The second TAI list corresponds to the same coverage area in the first core network and the second core network.

29. The method according to claim 26, characterized in that The coverage area of ​​the third TAI list overlaps with the coverage area of ​​the second TAI list.

30. A mobility management device, characterized in that: The device is applied to a first core network, and the device includes: A first sending module, configured to send a first TAI list allocated to the UE to a second core network; the UE is dual-registered with the first core network and the second core network; The first receiving module is used to receive a second TAI list allocated to the UE after negotiation with the second core network; the second TAI list corresponds to the same coverage area in the first core network and the second core network.

31. A mobility management device, characterized in that: The device is applied to a second core network, and the device includes: A second receiving module is configured to receive a first TAI list sent by a first core network; the first TAI list is allocated by the first core network to the UE, and the UE is dual-registered with the first core network and the second core network; The second sending module is used to send a second TAI list assigned to the UE after negotiation to the first core network; the second TAI list corresponds to the same coverage area in the first core network and the second core network.

32. A mobility management device, characterized in that: The device is applied to a UE, the UE is dual-registered with a first core network and a second core network, and the device includes: A third receiving module is configured to receive a response message sent by the first core network; the response message includes a second TAI list negotiated and confirmed by the first core network and the second core network; and / or the response message includes a third TAI list allocated by the second core network to the UE; A mobility management module, configured to perform corresponding mobility management based on the response message; Among them, the second TAI list corresponds to the same coverage area in the first core network and the second core network.

33. A mobility management system, characterized in that: The system comprises a first core network, a second core network and a UE, wherein the UE is dual-registered with the first core network and the second core network; wherein the first core network is used to execute the mobility management method according to any one of claims 1 to 13; The second core network is used to execute the mobility management method according to any one of claims 14 to 23; The UE is used to execute the mobility management method described in any one of claims 24 to 29.

34. An electronic device, characterized in that: It comprises a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the mobility management method as claimed in any one of claims 1 to 29.

35. A computer readable medium, characterized in that The computer-readable medium stores a program or an instruction, and when the program or the instruction is executed by a processor, the mobility management method according to any one of claims 1 to 29 is implemented.

36. A computer program product, characterized in that When the computer program product is executed on a computer, the computer is enabled to execute the mobility management method according to any one of claims 1 to 29.

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