A method and apparatus for bearer migration, an electronic device, and a storage medium

Abstract

The application discloses a method and device for performing bearer migration, electronic equipment and a storage medium. The method for performing bearer migration comprises the following steps: obtaining load information of an NSA node; and performing bearer migration according to the obtained load information. According to the embodiment of the application, the load information of a candidate NSA node is actively or passively obtained, and bearer migration is performed according to the obtained load information of the candidate NSA node, so that the pressure of a high-load NSA node is relieved, the load of the NSA nodes in NSA networking is relatively balanced, and the running efficiency is high.

Description

Technical Field

[0001] This invention relates to the field of mobile communications, and in particular to a method and apparatus for carrying out bearer migration, an electronic device, and a storage medium. Background Technology

[0002] Currently, 5G (Fifth Generation) technology is developing rapidly. 5G's powerful capabilities and rich connectivity scenarios will inevitably stimulate application demands across various industries.

[0003] Due to its significant social benefits and commercial prospects, 5G NR (New Radio) is being developed and heavily invested in by various countries and regions, leading to its rapid advancement. Currently, some regions have begun deploying NR base stations for testing, and pre-commercial use of 5G NR is on the agenda.

[0004] In the evolution from LTE (Long Term Evolution) to NR network architecture, NSA (Non-Standalone) is an intermediate evolution form. NSA nodes occupy a very important strategic position in the evolution from 4G to 5G. Load balancing of NSA nodes is also a very important goal in radio access network technology and a technology that operators pay close attention to.

[0005] After an NSA terminal accesses an LTE cell, it will select an NSA node according to the NSA selection policy on the LTE side, migrate the bearer of the user UE to the NSA node, and use the NSA node to complete the data transmission.

[0006] In NSA networking, user UEs access the network from the LTE side, and data is mainly transmitted at the NSA node. This approach can lead to a large number of users accessing the same NSA node, causing the NSA node to be overloaded and unbalanced, resulting in low operating efficiency. Summary of the Invention

[0007] In view of this, the present invention provides a method, apparatus, electronic device and storage medium for carrying out bearer migration, which actively or passively obtains the load information of candidate NSA nodes and carries out bearer migration according to the obtained load information of candidate NSA nodes, thereby alleviating the pressure on high-load NSA nodes, making the load of NSA nodes in NSA networking relatively balanced and the operating efficiency high.

[0008] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows:

[0009] According to one aspect of the present invention, a method for performing bearer migration is provided, the method comprising:

[0010] Obtain load information for NSA nodes;

[0011] Bearer migration is performed based on the acquired load information.

[0012] According to another aspect of the present invention, an apparatus for performing bearer migration is provided, the apparatus being applied to a bearer migration method described in the embodiments of the present invention, the apparatus comprising: an acquisition module and a migration module, wherein:

[0013] The acquisition module is used to acquire the load information of the NSA node;

[0014] The migration module is used to perform bearer migration based on the acquired load information.

[0015] According to another aspect of the present invention, an electronic device is provided, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of the bearer migration method provided in the embodiments of the present invention.

[0016] According to another aspect of the present invention, a computer-readable storage medium is provided, wherein a program for a method of performing bearer migration is stored on the computer-readable storage medium, and the program for performing bearer migration, when executed by a processor, implements the steps of the method for performing bearer migration provided in the embodiments of the present invention.

[0017] Compared with related technologies, the present invention provides a method, apparatus, electronic device, and storage medium for bearer migration. The method for bearer migration includes: acquiring load information of NSA nodes; and performing bearer migration based on the acquired load information. Through the embodiments of the present invention, by actively or passively acquiring load information of candidate NSA nodes and performing bearer migration based on the acquired load information of candidate NSA nodes, the pressure on high-load NSA nodes is alleviated, resulting in a relatively balanced load on NSA nodes in the NSA network and high operating efficiency. Specifically: First, when migrating current LTE bearers to NSA nodes, the load information of the NSA nodes is considered, which avoids a large number of user bearers migrating to a single NSA node, leading to a high load on that NSA node, while also allowing for a relatively balanced increase in load across multiple NSA nodes; second, when the load on an NSA node is high, the bearers are migrated to other NSA nodes or back to the LTE side, alleviating the pressure on high-load NSA nodes. Attached Figure Description

[0018] Figure 1This is a schematic flowchart of a load-based bearer migration method provided in an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of a process for actively acquiring the load information of NSA nodes provided in an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of a process for passively acquiring the load information of an NSA node according to an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of a device for load-based load migration provided in an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of a process for migrating LTE-side bearer to an NSA node based on load, provided by an embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of a process for migrating bearers from an NSA node to other NSA nodes based on load, provided by an embodiment of the present invention.

[0024] Figure 7 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention.

[0025] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] To make the technical problems, solutions, and beneficial effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0027] In the following description, the use of suffixes such as "module," "part," or "unit" to denote elements is solely for the purpose of illustrative purposes and has no specific meaning in itself. Therefore, "module," "part," or "unit" may be used interchangeably.

[0028] It should be noted that the terms "first," "second," etc., in the specification, claims, and drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0029] In one embodiment, such as Figure 1 As shown, the present invention provides a method for load-based bearer migration, the method comprising:

[0030] Step S1: Obtain the load information of the NSA node.

[0031] Load information acquisition refers to the process by which the LTE side or NSA node obtains load information from other NSA nodes when bearer migration is required. Load information acquisition messages are transmitted via the X2 interface between the LTE side and the NSA node, or between NSA nodes themselves.

[0032] Load information can be acquired in two ways: active acquisition and passive acquisition. Among them:

[0033] 1) Proactive acquisition refers to the current LTE side or the current NSA node proactively sending a load request message to the candidate NSA node when bearer migration is required, in order to obtain the load information of the candidate NSA node; upon receiving the load request message, the candidate NSA node replies with its own load information to the current LTE side or the current NSA node. For example... Figure 2 As shown.

[0034] 2) Passive acquisition refers to the current LTE side or the current NSA node passively receiving payload information sent by candidate NSA nodes and storing the most recently received payload information from candidate NSA nodes. For example... Figure 3 As shown.

[0035] There are two ways for candidate NSA nodes to send load information: one is to send the load information to the current LTE side or the current NSA node when the load information changes; the other is to send the load information to the current LTE side or the current NSA node periodically.

[0036] Optionally, the method for determining the change in load information is: using a gear setting, specifically including: pre-setting N gear load information, and considering the load information to have changed when the actual load condition is at a different gear.

[0037] Step S2: Perform bearer migration based on the acquired load information.

[0038] Based on the obtained load information of NSA nodes, bearer migration is performed, including two scenarios:

[0039] Scenario 1: LTE-side bearer migration to NSA node

[0040] The process of performing bearer migration based on the acquired load information includes:

[0041] 1) When an NSA terminal needs to perform bearer migration upon entering the current LTE side, the current LTE side sorts the obtained candidate NSA nodes according to the load information of the obtained candidate NSA nodes and in accordance with the preset load sorting method.

[0042] 2) The current LTE side selects the top N (N is an integer) candidate NSA nodes to form a target NSA node list;

[0043] 3) The current LTE side selects a target NSA node from the list of target NSA nodes to attempt user UE bearer migration until the bearer migration is successful.

[0044] Preferably, the preset load sorting method includes at least one of the following: sorting according to the amount of service carried, sorting according to the priority of the service carried, and sorting according to the load from low to high.

[0045] There are N bearer migration options, which can be sorted and selected either by user UE or by individual bearer.

[0046] By taking into account the load information of NSA nodes when migrating the current LTE side bearers to NSA nodes, it avoids the situation where a large number of user bearers are migrated to a single NSA node, resulting in a high load on that NSA node. At the same time, it allows the load of multiple NSA nodes to increase relatively evenly, alleviating the pressure on high-load NSA nodes. This makes the load of NSA nodes in the NSA network relatively balanced and the operating efficiency high.

[0047] Scenario 2: When the current NSA node is under high load, the bearer will be migrated to other candidate NSA nodes or the LTE side.

[0048] The process of performing bearer migration based on the acquired load information includes:

[0049] 1) Determine the current load status of the NSA node;

[0050] If the load of the current NSA node remains above a preset load threshold for a certain period of time, the current NSA node is determined to be in a high-load state.

[0051] 2) When it is determined that the current NSA node is under high load, the current NSA node sorts the obtained candidate NSA nodes according to the load information of the candidate NSA nodes in a preset load sorting method. The current NSA node selects the top N candidate NSA nodes in the sorting to form a target NSA node list.

[0052] 3) The current NSA node selects a target NSA node from the list of target NSA nodes to attempt to migrate the NSA node's bearer, migrating the current NSA node's bearer to the selected target NSA node until the bearer migration is successful.

[0053] 4) If the current NSA node's bearer migration to any of the target NSA nodes in the target NSA node list fails, the current NSA node's bearer will be migrated back to the LTE side.

[0054] Preferably, the preset load sorting method includes at least one of the following: sorting according to the amount of service carried, sorting according to the priority of the service carried, and sorting according to the load from low to high.

[0055] There are N bearer migration options, which can be sorted and selected either by user UE or by individual bearer.

[0056] By migrating bearers to other NSA nodes or back to the LTE side when NSA nodes are under high load, the pressure on high-load NSA nodes is alleviated, resulting in a relatively balanced load and high operating efficiency for NSA nodes in the NSA network.

[0057] In this embodiment, by actively or passively acquiring the load information of candidate NSA nodes and migrating bearers based on this information, the pressure on high-load NSA nodes is alleviated, resulting in a relatively balanced load and high operating efficiency for the NSA nodes in the NSA network. Specifically: First, when migrating current LTE bearers to NSA nodes, the load information of the NSA nodes is considered. This avoids a situation where a large number of user bearers migrate to a single NSA node, leading to a high load on that node, while also allowing for a relatively balanced increase in load across multiple NSA nodes. Second, when an NSA node has a high load, bearers are migrated to other NSA nodes or back to the LTE side, alleviating the pressure on high-load NSA nodes.

[0058] In one embodiment, such as Figure 4 As shown, the present invention provides an apparatus for bearer migration, which is applied to a bearer migration method described in an embodiment of the present invention. The apparatus includes: an acquisition module 10 and a migration module 20, wherein:

[0059] The acquisition module 10 is used to acquire the load information of the NSA node;

[0060] The migration module 20 is used to perform bearer migration based on the acquired load information.

[0061] Furthermore, the acquisition module 10 acquires the load information of the NSA node, which can be divided into two methods: active acquisition and passive acquisition. Wherein:

[0062] 1) Active acquisition refers to the current LTE side or the current NSA node actively sending a load request message to the candidate NSA node when a bearer migration is required, in order to obtain the load information of the candidate NSA node; when the candidate NSA node receives the load request message, it replies with its own load information to the current LTE side or the current NSA node.

[0063] 2) Passive acquisition is the passive reception of load information sent by candidate NSA nodes by the current LTE side or the current NSA node and storage of the most recently received load information of candidate NSA nodes.

[0064] Furthermore, the migration module 20 performs bearer migration based on the acquired load information, including two scenarios:

[0065] Scenario 1: LTE-side bearer migration to NSA node

[0066] The migration module 20 performs bearer migration based on the acquired load information, including:

[0067] 1) When an NSA terminal needs to perform bearer migration upon entering the current LTE side, the current LTE side sorts the obtained candidate NSA nodes according to the load information of the obtained candidate NSA nodes and in accordance with the preset load sorting method.

[0068] 2) The current LTE side selects the top N (N is an integer) candidate NSA nodes to form a target NSA node list;

[0069] 3) The current LTE side selects a target NSA node from the list of target NSA nodes to attempt user UE bearer migration until the bearer migration is successful.

[0070] Preferably, the preset load sorting method includes at least one of the following: sorting according to the amount of service carried, sorting according to the priority of the service carried, and sorting according to the load from low to high.

[0071] There are N bearer migration options, which can be sorted and selected either by user UE or by individual bearer.

[0072] By taking into account the load information of NSA nodes when migrating the current LTE side bearers to NSA nodes, it avoids the situation where a large number of user bearers are migrated to a single NSA node, resulting in a high load on that NSA node. At the same time, it allows the load of multiple NSA nodes to increase relatively evenly, alleviating the pressure on high-load NSA nodes. This makes the load of NSA nodes in the NSA network relatively balanced and the operating efficiency high.

[0073] Scenario 2: When the current NSA node is under high load, the bearer will be migrated to other candidate NSA nodes or the LTE side.

[0074] The migration module 20 performs bearer migration based on the acquired load information, including:

[0075] 1) Determine the current load status of the NSA node;

[0076] If the load of the current NSA node remains above a preset load threshold for a certain period of time, the current NSA node is determined to be in a high-load state.

[0077] 2) When it is determined that the current NSA node is under high load, the current NSA node sorts the obtained candidate NSA nodes according to the load information of the candidate NSA nodes in a preset load sorting method. The current NSA node selects the top N candidate NSA nodes in the sorting to form a target NSA node list.

[0078] 3) The current NSA node selects a target NSA node from the list of target NSA nodes to attempt to migrate the NSA node's bearer, migrating the current NSA node's bearer to the selected target NSA node until the bearer migration is successful.

[0079] 4) If the current NSA node's bearer migration to any of the target NSA nodes in the target NSA node list fails, the current NSA node's bearer will be migrated back to the LTE side.

[0080] Preferably, the preset load sorting method includes at least one of the following: sorting according to the amount of service carried, sorting according to the priority of the service carried, and sorting according to the load from low to high.

[0081] There are N bearer migration options, which can be sorted and selected either by user UE or by individual bearer.

[0082] By migrating bearers to other NSA nodes or back to the LTE side when NSA nodes are under high load, the pressure on high-load NSA nodes is alleviated, resulting in a relatively balanced load and high operating efficiency for NSA nodes in the NSA network.

[0083] It should be noted that the above-described device embodiments and method embodiments belong to the same concept, and the specific implementation process can be found in the method embodiments. Furthermore, the technical features in the method embodiments are all applicable to the device embodiments, and will not be repeated here.

[0084] The technical solution of the present invention will be further described in detail below with reference to the embodiments.

[0085] Example 1:

[0086] In this embodiment, the LTE-side bearer is migrating to an NSA node, and the load information is obtained actively. For example... Figure 5 As shown.

[0087] Figure 5In the diagram, Cell11 is an LTE1 cell, Cell21 and Cell22 are NSA node NR2 cells, and Cell31 and Cell32 are NSA node NR3 cells.

[0088] 1. The NSA terminal accesses cell11, and LTE1 requests the load information of cells21, cell22, cell31, and cell32 from NR2 and NR3.

[0089] 2. NR2 and NR3 feed back the load information of cell21, cell22, cell31 and cell32 to LTE1.

[0090] 3. LTE1 sorts the load information of cells 21, 22, 31, and 32 from low to high, outputs a list of target NSA nodes, and allows NSA terminals to attempt bearer migration one by one.

[0091] 4. Once the bearer successfully migrates to a certain NSA node, LTE1 will stop attempting to migrate the bearer.

[0092] Example 2:

[0093] In this embodiment, the NSA node migrates its bearer to other NSA nodes. Load information is acquired passively, and other NSA nodes periodically send load feedback. For example... Figure 5 As shown.

[0094] Figure 5 In the diagram, Cell11 is an LTE1 cell, Cell21 and Cell22 are NSA node NR2 cells, and Cell31 and Cell32 are NSA node NR3 cells.

[0095] 1. NR3 periodically feeds back the load information of cells 31 and 32 to NR2 and LTE1, while LTE1 and NR2 store the latest acquired load information. NR2 periodically feeds back the load information of cells 21 and 22 to NR3 and LTE1, while NR3 and LTE1 store the latest acquired load information. At this point, LTE1 stores the load information of cells 21, 22, 31, and 32; NR2 stores the load information of cells 21, 22, 31, and 32; and NR3 stores the load information of cells 21, 22, 31, and 32.

[0096] 2. When an NSA terminal accesses cell11 and bearer migration is required, LTE1 sorts the load information of the latest stored cells21, 22, 31, and 32 from low to high, and finally selects cell21 of the NR2 node to migrate the bearer to cell21.

[0097] 3. If the load of Cell21 node meets the preset threshold of high load conditions within a certain period of time, Cell21 node sorts the load information of Cell22, Cell31, and Cell32 from low to high according to the latest stored load information, outputs the target NSA node list, and Cell21 selects the target NSA node in the target NSA node list to attempt to migrate the bearer one by one.

[0098] 4. Once a bearer has successfully migrated to an NSA node, cell21 stops attempting to migrate that bearer. The process ends once all bearers have completed their migrations.

[0099] Example 3:

[0100] In this embodiment, the NSA node migrates its bearer to other NSA nodes. Load information is acquired passively, and other NSA nodes report load changes only upon occurrence. For example... Figure 6 As shown.

[0101] Figure 6 In the diagram, Cell11 is the LTE1 cell, and Cell21 is the NSA node NR2 cell.

[0102] 1. When the load changes, NR2 feeds back the load information of cell21 to LTE1. LTE1 stores the latest acquired load information. At this time, LTE1 stores the load information of cell21.

[0103] 2. When an NSA terminal accesses cell11, it migrates the bearer to cell21 based on the load information obtained from cell21 when bearer migration is required. (Since there is only cell21 node, there is no need to sort according to load).

[0104] 3. If the load of Cell21 node meets the preset threshold of high load conditions within a certain period of time, and there are no other NSA nodes, cell21 will select to partially carry the load and migrate it back to the LTE side.

[0105] Furthermore, embodiments of the present invention also provide an electronic device, such as... Figure 7As shown, the electronic device 1000 includes: a memory 1002, a processor 1001, and one or more computer programs stored in the memory 1002 and executable on the processor 1001. The memory 1002 and the processor 1001 are coupled together via a bus system 1003. When the one or more computer programs are executed by the processor 1001, they implement the following steps of a bearer migration method provided in this embodiment of the invention:

[0106] Step S1: Obtain the load information of the NSA node;

[0107] Step S2: Perform bearer migration based on the acquired load information.

[0108] The methods disclosed in the above embodiments of the present invention can be applied to, or implemented by, the processor 1001. The processor 1001 may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above methods can be completed by integrated logic circuits in the hardware of the processor 1001 or by instructions in software form. The processor 1001 may be a general-purpose processor, a DSP, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The processor 1001 can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of the present invention. A general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of the present invention can be directly manifested as execution by a hardware decoding processor, or execution by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium, specifically in memory 1002. The processor 1001 reads information from memory 1002 and, in conjunction with its hardware, completes the steps of the aforementioned methods.

[0109] It is understood that the memory 1002 in this embodiment of the invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), magnetic random access memory (FRAM), flash memory or other memory technologies, compact disk read-only memory (CD-ROM), digital video disk (DVD) or other optical disc storage, magnetic cartridges, magnetic tapes, disk storage or other magnetic storage devices; the volatile memory can be random access memory (RAM). By way of example, but not limitation, many forms of RAM are available, such as static random access memory (SRAM), synchronous static random access memory (SSRAM). Memory), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), SyncLink Dynamic Random Access Memory (SLDRAM), and Direct Rambus Random Access Memory (DRRAM).The memories described in the embodiments of this invention are intended to include, but are not limited to, these and any other suitable types of memories.

[0110] It should be noted that the above base station embodiments and method embodiments belong to the same concept, and the specific implementation process can be found in the method embodiments. Furthermore, the technical features in the method embodiments are all applicable to the base station embodiments, and will not be repeated here.

[0111] In addition, in an exemplary embodiment, the present invention also provides a computer storage medium, specifically a computer-readable storage medium, such as a memory 1002 storing computer programs. The computer storage medium stores one or more programs for a method of performing bearer migration. When the one or more programs for performing bearer migration are executed by the processor 1001, they implement the following steps of a bearer migration method provided by the present invention:

[0112] Step S1: Obtain the load information of the NSA node;

[0113] Step S2: Perform bearer migration based on the acquired load information.

[0114] It should be noted that the above-described method program embodiments for carrying out bearer migration on computer-readable storage media and the method embodiments belong to the same concept. For details of the specific implementation process, please refer to the method embodiments. Furthermore, the technical features in the method embodiments are all applicable to the above-described computer-readable storage media embodiments, and will not be repeated here.

[0115] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0116] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0117] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, 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 to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0118] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A method for performing bearer migration, characterized in that, The method includes: The first communication device acquires the load information of the candidate NSA node; wherein, the first communication device includes at least one of the current LTE side and the current NSA node, and the candidate NSA node is the NSA node in the NSA network where the first communication device is located; The first communication device performs bearer migration based on the acquired load information; The first communication device performs bearer migration based on the acquired load information, including at least one of the following: In response to a user UE entering the current LTE side and needing to perform bearer migration, the current LTE side migrates the UE's bearer to a low-load NSA node among the candidate NSA nodes; In response to the current NSA node being under high load, the current NSA node will migrate its bearer to a low-load NSA node among the candidate NSA nodes; The current LTE side migrates the bearer of the UE to a low-load NSA node among the candidate NSA nodes, including: The current LTE side sorts the acquired candidate NSA nodes according to the load information of the acquired candidate NSA nodes in ascending order of load, forming a target NSA node list; The current LTE side selects a target NSA node from the target NSA node list in sorting order to attempt user UE bearer migration until the bearer migration is successful.

2. The method according to claim 1, characterized in that, The process of obtaining the load information of candidate NSA nodes includes: Currently, when a bearer migration is required, the LTE side sends a load request message to the candidate NSA node to obtain the load information of the candidate NSA node.

3. The method according to claim 1, characterized in that, The process of obtaining the load information of candidate NSA nodes includes: The LTE side currently receives load information sent by candidate NSA nodes, obtains the load information of candidate NSA nodes, and stores the load information of the most recently received NSA node.

4. The method according to claim 1, characterized in that, The process of obtaining the load information of candidate NSA nodes includes: When a current NSA node needs to perform a bearer migration, it sends a load request message to a candidate NSA node to obtain the load information of the candidate NSA node.

5. The method according to claim 1, characterized in that, The process of obtaining the load information of candidate NSA nodes includes: The current NAS node receives load information sent by candidate NSA nodes, obtains the load information of candidate NSA nodes, and stores the load information of the most recently received NSA node.

6. The method according to claim 4 or 5, characterized in that, The process of performing bearer migration based on the acquired load information includes: Determine the current load status of the NSA node; When it is determined that the current NSA node is under high load, the current NSA node sorts the obtained candidate NSA nodes according to the load information of the candidate NSA nodes and forms a target NSA node list according to the preset load sorting method. The current NSA node selects a target NSA node from the list of target NSA nodes to perform NSA node bearer migration, migrating the current NSA node's bearer to the selected target NSA node.

7. A device for carrying out load migration, characterized in that, The apparatus is applied to a bearer migration method as described in any one of claims 1 to 6, the apparatus comprising: an acquisition module and a migration module, wherein: The acquisition module is used for the first communication device to acquire the load information of the candidate NSA node; wherein, the first communication device includes at least one of the current LTE side and the current NSA node, and the candidate NSA node is the NSA node in the NSA network where the first communication device is located; The migration module is used by the first communication device to perform bearer migration based on the acquired load information; The migration module is specifically used for at least one of the following: In response to a user UE entering the current LTE side and needing to perform bearer migration, the current LTE side migrates the UE's bearer to a low-load NSA node among the candidate NSA nodes; In response to the current NSA node being under high load, the current NSA node will migrate its bearer to a low-load NSA node among the candidate NSA nodes; The migration module is specifically used for: The current LTE side sorts the acquired candidate NSA nodes according to the load information of the acquired candidate NSA nodes in ascending order of load, forming a target NSA node list; The current LTE side selects a target NSA node from the target NSA node list in sorting order to attempt user UE bearer migration until the bearer migration is successful.

8. An electronic device, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program, when executed by the processor, implements the steps of a method for performing bearer migration as claimed in any one of claims 1 to 6.

9. A storage medium, characterized in that, The storage medium stores a program for a method of performing bearer migration, which, when executed by a processor, implements the steps of a method of performing bearer migration as described in any one of claims 1 to 6.

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