CN110662264A - Switching method, system, core network device and computer readable storage medium - Google Patents
Switching method, system, core network device and computer readable storage medium Download PDFInfo
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- CN110662264A CN110662264A CN201810682614.0A CN201810682614A CN110662264A CN 110662264 A CN110662264 A CN 110662264A CN 201810682614 A CN201810682614 A CN 201810682614A CN 110662264 A CN110662264 A CN 110662264A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
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- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
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Abstract
The disclosure relates to a switching method, a system, a core network device and a computer readable storage medium, and relates to the field of communication. The method of the present disclosure comprises: the core network equipment acquires current terminal state information, service base station state information and adjacent base station state information; the core network equipment generates a switching parameter according to the terminal state information, the service base station state information and the adjacent base station state information; and the core network equipment sends the switching parameters to the terminal and the service base station so that the terminal can carry out switching based on the switching parameters. According to the method and the device, the core network comprehensively refers to the states of the terminal, the service base station and the adjacent base station to dynamically generate the switching parameters, a more personalized mobility management mode is provided according to different conditions of each terminal, the development trend that multiple networks are fused, multiple terminals coexist and multiple services are carried out simultaneously in the future can be better adapted, the rationality of a switching strategy provided for the terminal is improved, the service quality is improved, and the user perception effect and the network operation efficiency are improved.
Description
Technical Field
The present disclosure relates to the field of communications, and in particular, to a handover method, a handover system, a core network device, and a computer-readable storage medium.
Background
In the future 5G network, the kinds of terminals will increase greatly, and with the enhancement of network capability, the kinds of services of the terminals will also increase explosively, the requirements of mobility management may be completely different for each terminal and each service, and the services performed by a single terminal will also change frequently. Therefore, how to perform mobility management on a terminal and improve service quality becomes an important issue in 5G standardization.
The handover scheme of the terminal is a key part in mobility management. Currently, the handover process of a terminal is to trigger the measurement and handover processes of the terminal through the statically configured handover parameters in different handover events.
Disclosure of Invention
The inventor finds that: in the current switching scheme, based on statically configured switching parameters, for the complexity of services and scenes of terminals in a future 5G network, a proper switching strategy cannot be provided for each terminal to select a proper serving cell, and high-quality service cannot be provided for users.
One technical problem to be solved by the present disclosure is: how to select a proper service cell for the terminal to switch and improve the service quality.
According to some embodiments of the present disclosure, there is provided a handover method, including: the core network equipment acquires current terminal state information, service base station state information and adjacent base station state information; the core network equipment generates a switching parameter according to the terminal state information, the service base station state information and the adjacent base station state information; and the core network equipment sends the switching parameters to the terminal and the service base station so that the terminal can carry out switching based on the switching parameters.
In some embodiments, the obtaining, by the core network device, the current terminal state information, the serving base station state information, and the neighboring base station state information includes: the core network equipment responds to the state change of the terminal, the service base station or the adjacent base station and acquires the current terminal state information, the service base station state information and the adjacent base station state information; or, the core network device periodically acquires the current terminal state information, the serving base station state information, and the neighboring base station state information.
In some embodiments, the core network equipment generating the switching parameter according to the terminal state information, the service base station state information and the adjacent base station state information comprises the core network equipment generating the switching parameter according to the matching degree of the terminal state and the service base station state and the matching degree of the terminal state and the adjacent base station state; the higher the matching degree of the terminal state and the state of the serving base station is, the lower the probability that the terminal is switched from the serving base station to the adjacent base station is caused by the generated switching parameters.
In some embodiments, the terminal state information includes: the service type of the terminal operation; under the condition that the terminal runs various services, the matching degree of the terminal state and the service base station state is determined according to the matching degree of different types of services and the service base station state and the weights of the different types of services, and the matching degree of the terminal state and the adjacent base station state is determined according to the matching degree of the different types of services and the adjacent base station state and the weights of the different types of services.
In some embodiments, the core network equipment generating the switching parameter according to the terminal state information, the service base station state information and the adjacent base station state information comprises the following steps that the core network equipment inputs the terminal state information, the service base station state information and the adjacent base station state information into a pre-trained machine learning model, and generates the switching parameter according to the output switching probability; wherein the higher the handover probability, the higher the generated handover parameter results in a higher probability of the terminal handing over from the serving base station to the neighbor base station.
In some embodiments, the terminal state information includes: at least one item of information of service type, motion state and equipment state of terminal operation; the serving base station state information includes: at least one of load information, coverage information, and capacity information of the serving base station; the neighbor base station state information includes: at least one item of load information, coverage information and capacity information of the adjacent base station; the load information includes: at least one of current load information and load information predicted for a next period.
According to other embodiments of the present disclosure, there is provided a core network device including: the information acquisition module is used for acquiring current terminal state information, service base station state information and adjacent base station state information; the switching parameter generating module is used for generating switching parameters according to the terminal state information, the service base station state information and the adjacent base station state information; and the switching parameter issuing module is used for sending the switching parameters to the terminal and the service base station so that the terminal can switch based on the switching parameters.
In some embodiments, the information obtaining module is configured to obtain current terminal state information, serving base station state information, and neighbor base station state information in response to a state change of the terminal, the serving base station, or the neighbor base station, or periodically obtain the current terminal state information, the serving base station state information, and the neighbor base station state information.
In some embodiments, the handover parameter generating module is configured to generate a handover parameter according to a matching degree between the terminal state and the serving base station state and a matching degree between the terminal state and the neighboring base station state; the higher the matching degree of the terminal state and the state of the serving base station is, the lower the probability that the terminal is switched from the serving base station to the adjacent base station is caused by the generated switching parameters.
In some embodiments, the terminal state information includes: the service type of the terminal operation; under the condition that the terminal runs various services, the matching degree of the terminal state and the service base station state is determined according to the matching degree of different types of services and the service base station state and the weights of the different types of services, and the matching degree of the terminal state and the adjacent base station state is determined according to the matching degree of the different types of services and the adjacent base station state and the weights of the different types of services.
In some embodiments, the handover parameter generation module is configured to input the terminal state information, the serving base station state information, and the neighbor base station state information into a pre-trained machine learning model, and generate a handover parameter according to an output handover probability; wherein the higher the handover probability, the higher the generated handover parameter results in a higher probability of the terminal handing over from the serving base station to the neighbor base station.
In some embodiments, the terminal state information includes: at least one item of information of service type, motion state and equipment state of terminal operation; the serving base station state information includes: at least one of load information, coverage information, and capacity information of the serving base station; the neighbor base station state information includes: at least one item of load information, coverage information and capacity information of the adjacent base station; the load information includes: at least one of current load information and load information predicted for a next period.
According to still other embodiments of the present disclosure, there is provided a core network device including: a memory; and a processor coupled to the memory, the processor configured to perform a handover method according to any of the preceding embodiments based on instructions stored in the memory device.
According to still further embodiments of the present disclosure, there is provided a computer-readable storage medium having stored thereon a computer program, wherein the program, when executed by a processor, implements the steps of the handover method of any of the preceding embodiments.
According to still other embodiments of the present disclosure, there is provided a handover system including: the core network device of any of the preceding embodiments; the terminal is used for receiving the switching parameters issued by the core network equipment; and the service base station is used for receiving the switching parameters issued by the core network equipment.
In the disclosure, the core network device generates a switching parameter according to the current terminal state information, the service base station state information and the adjacent base station state information, and issues the switching parameter to the terminal and the service base station, and the subsequent terminal and the base station can trigger the switching process of the terminal based on the switching parameter issued by the core network. According to the method and the device, the core network comprehensively refers to the states of the terminal, the service base station and the adjacent base station to dynamically generate the switching parameters, the service and application scenes of the terminal are better met, a more personalized mobility management mode is provided according to different conditions of each terminal, the development trend that multiple networks are fused, multiple terminals coexist and multiple services are carried out simultaneously in the future can be better adapted, the rationality of a switching strategy provided for the terminal is improved, the service quality is improved, and the user perception effect and the network operation efficiency are improved.
Other features of the present disclosure and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 shows a flow diagram of a handover method of some embodiments of the present disclosure.
Fig. 2 illustrates a schematic structural diagram of a core network device of some embodiments of the present disclosure.
Fig. 3 shows a schematic structural diagram of a core network device according to further embodiments of the present disclosure.
Fig. 4 shows a schematic structural diagram of a core network device according to further embodiments of the present disclosure.
Fig. 5 shows a schematic structural diagram of a switching system of some embodiments of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
The present disclosure provides a handover method, described below in conjunction with fig. 1.
Fig. 1 is a flow chart of some embodiments of a handover method of the present disclosure. As shown in fig. 1, the method of this embodiment includes: steps S102 to S106.
Step S102, the core network equipment acquires the current terminal state information, the service base station state information and the adjacent base station state information.
The serving base station is a base station to which the current terminal is connected, and the neighbor base station is a neighbor base station of the serving base station. The core network device may periodically acquire the terminal state information, the serving base station state information, and the neighbor base station state information. The core network device may also trigger the step of acquiring the current state information of the terminal, the serving base station, and the state information of the neighboring base station according to the state change of the terminal, the serving base station, or the neighboring base station, so as to generate the subsequent handover parameters.
In some embodiments, the core network device obtains current terminal state information, serving base station state information, and neighbor base station state information in response to a service increase or change of the terminal. The core network equipment can acquire the service increase or change of the terminal by receiving the message reported by the terminal. The core Network device may also obtain the change or increase of the service type of the terminal through an API (application program interface) of the application server, or through a Network service presentation Function (NEF) or through a Network element such as an AF (service policy provisioning point Function), which is not limited to the examples.
In some embodiments, the core network device obtains current terminal state information, serving base station state information, and neighbor base station state information in response to a change in the motion state of the terminal. For example, the terminal changes from a low-speed moving state to a high-speed moving state. The core network device may determine the motion state change of the terminal through a location change (for example, obtained through GPS) of the terminal reported by the terminal or the base station, which is not limited to the example.
In other embodiments, the core network device obtains current terminal state information, serving base station state information, and neighbor base station state information in response to a change in load information of the serving base station or the neighbor base station. For example, the core network device obtains, through the base station report message, that the load of the serving base station or the neighboring base station is higher than a first threshold, or the load of the serving base station or the neighboring base station is lower than a second threshold, and obtains current terminal state information, serving base station state information, and neighboring base station state information. The method for triggering the core network device to acquire the state information of the terminal or the base station may be set according to actual requirements, and is not limited to the examples given.
The state information of the terminal includes, for example, at least one of a service type, a motion state, and a device state of the terminal. The motion states of the terminal include, for example: low-speed motion, medium-speed motion, high-speed motion, etc. The device states of the terminal include, for example: a power state, an emergency state, etc. The emergency state may be a state in which the terminal can make only an emergency call. Or the emergency state may be a value-added service provided by an operator, and when the terminal is set to the emergency state, the service executed by the terminal can be guaranteed to ensure the quality of the service. The type of the state information of the terminal can be set according to actual requirements, and is not limited to the illustrated example.
The serving base station state information includes, for example: at least one of load information, coverage information, and capacity information of the serving base station; the neighbor base station state information includes, for example: at least one of load information, coverage information, and capacity information of the neighboring base station. The load information includes, for example: at least one of current load information and load information predicted for a next period. And determining the load information of the next time period according to historical statistics. The type of the status information of the base station can be set according to actual requirements, and is not limited to the illustrated example. The coverage area, capacity information, etc. of the base station, the core network device may be obtained through configuration information when the base station is initially set up. Other status information of the base station or status information of the terminal may be reported by the base station or the terminal, or may be obtained by a network element storing the status information, which is not limited to the examples.
And step S104, the core network equipment generates a switching parameter according to the terminal state information, the service base station state information and the adjacent base station state information.
The handover parameters are measurement events in the handover scheme and handover parameters in the handover event. For example, the parameters such as threshold values and offsets in the LTE handover events A3 to a5, B1, and B2, for example, the trigger condition of the a4 event is: mn + Ofn + Ocn-Hys > Thresh, Mn is a neighbor cell measurement result, Ofn is a frequency offset, Ocn is a cell offset, Hys is an inter-frequency handover configuration according to QCI (quality of service class identifier), Thresh is a threshold, and a handover parameter generated by the core network device may be Thresh. In a 5G network, handover events, handover parameters, etc. may be different from a 4G network, but any handover parameters that can be adjusted fall within the scope of the present disclosure. The core network device may select any one or more handover parameters for dynamic generation according to the pre-configuration, and other handover parameters may still be generated by using an inherent method.
In some embodiments, the core network device generates a handover parameter according to a matching degree between the terminal state and the serving base station state and a matching degree between the terminal state and the neighboring base station state; the higher the matching degree of the terminal state and the state of the serving base station is, the lower the probability that the terminal is switched from the serving base station to the adjacent base station is caused by the generated switching parameters.
The matching degree between the terminal state and the state of the base station (serving base station or neighboring base station) can be determined according to the weighted sum of the matching degrees between the various state information of the terminal and the various state information of the base station. The matching degree between the various state information of the terminal and the various state information of the base station may be generated according to statistical experience, and may be represented by a matching degree matrix, for example, each element in the matching degree matrix may represent the matching degree between one type of state information of the terminal and one type of state information of the base station. The state information of the terminal is, for example, voice service, high-speed motion state, and normal power, and the state information of the base station is, for example, low load, wide coverage, and medium capacity, then the matching degree matrix may be a 3-row and 3-column matrix, which represents the matching degree between each state information of the terminal and each state information of the base station.
Further, for the terminal state weight, the different state information of the terminal may be obtained by multiplying a vector formed by the terminal state weight by the matching degree matrix to obtain a matching value between the terminal and the base station. Under the condition that the terminal operates multiple services simultaneously, each service can be used as a state, for example, the state information of the terminal is, for example, a voice service, a video downloading service, a high-speed motion state, and a normal electric quantity, and the corresponding matching degree matrix can be a 4-row 3-column matrix. And calculating different terminal state weights for different services.
Further, for the state weight of the base station, the vector formed by the state weights of the terminal, and the matching degree matrix may be multiplied to obtain the matching value between the terminal and the base station.
The state weight of the terminal and the state weight of the base station may be dynamically adjusted according to the current state, for example, when the motion speed of the terminal reaches a certain threshold, the weight corresponding to the motion state may be increased to indicate that the condition of high-speed motion is preferentially matched, so as to ensure the service of the terminal. For another example, when the terminal is in an emergency state, the weight corresponding to the state is set to the highest value to ensure the service of the terminal. For another example, if the load of the base station exceeds the corresponding threshold, the weight corresponding to the load is set to be the highest, and at this time, the matching degree between the terminal state and the load of the base station may be a negative value, so that the terminal may not be connected to the base station.
Further, the handover parameter may be determined according to a ratio of the matching value of the terminal and the serving base station divided by the matching average of the terminal and the neighboring base station, or according to a ratio of the matching value of the terminal and the serving base station divided by the maximum matching value of the terminal and the neighboring base station. The matching average value of the terminal and the adjacent base station is the average value of the matching values of the terminal and each adjacent base station. And are not limited to the examples given. Different threshold values may be set and compared with the above ratios, respectively, to determine an adjustment value of the handover parameter based on the initial value. For example, if the ratio is higher than the first ratio threshold, which indicates that the matching degree between the terminal and the serving base station is high, the handover parameter may be increased by a first gradient value based on the initial value; if the ratio is higher than the second ratio threshold, the switching parameter may be increased by a second gradient value based on the initial value; conversely, when the matching degree between the terminal and the serving base station is lower than the third threshold, which indicates that the matching degree between the terminal and the serving base station is low, the handover parameter may be decreased by the third gradient value based on the initial value.
In practical application, the selection of the state information of the terminal and the base station, the setting of the matching degree, the terminal state weight and the base station state weight can be set according to practical tests and statistical experience.
In other embodiments, the switching parameters may be generated using machine learning methods. Inputting the terminal state information, the service base station state information and the adjacent base station state information into a machine learning model trained in advance, and generating switching parameters according to the output switching probability; wherein the higher the handover probability, the higher the generated handover parameter results in a higher probability of the terminal handing over from the serving base station to the neighbor base station. Machine learning models include, for example: neural network models, decision tree models, etc., without limitation to the examples given.
The machine learning model may be trained in advance using training data, which may be generated based on test or statistical data. The state information of a terminal, the state information of a corresponding serving base station and the state information of an adjacent base station can generate a piece of training data to be expressed in a vector form, and various state information of the terminal and the base station can be expressed by adopting preset numerical values. The label value corresponding to a piece of training data may be represented by 0 or 1, indicating switching or not switching. The machine learning model is trained with a certain amount of training data, and the output of the model may represent the probability of switching. After the machine learning model training is completed, when new data, namely terminal state information, service base station state information and adjacent base station state information, comes, the data is input into the trained model, and then switching probability can be output for indicating the probability of switching the terminal, which is beneficial to the service execution of the terminal.
Furthermore, different thresholds can be compared with the switching probability, the different thresholds correspond to different switching parameters to adjust the gradient values, and the switching parameters are adjusted to corresponding gradient values on the basis of the initial values according to the comparison of the thresholds and the switching probability.
And step S106, the core network equipment sends the switching parameters to the terminal and the service base station so that the terminal can switch based on the switching parameters.
The core network equipment generates switching parameters and then sends the switching parameters to the terminal and the service base station, the terminal and the service base station still trigger the measurement of the terminal and the subsequent switching process according to the original measurement event, switching event and the like, but the switching parameters of the switching event and the like are changed, so that the switching process of the terminal is performed according to various state information of the terminal and the base station.
It should be noted that in some application scenarios, there may be a situation where one base station corresponds to multiple cells, and in such a scenario, it is necessary to generate a handover parameter according to the terminal state information, the serving cell state information, and the neighboring cell state information, and determine whether the terminal performs handover between the cells. In the above embodiments, the state information related to the base station may be replaced by the state information of the cell, which is not described herein again.
Some application scenarios of the above embodiments are listed below.
The base station A is a wide-coverage base station and can correspond to the existing low-frequency 4G base station, the base station B is a hotspot capacity network, the coverage range of a single station is smaller, the base station A can correspond to the existing 5G high-frequency base station to be deployed, and the loads of the base station A and the base station B are not high. The terminal 1 is a high-speed moving vehicle and initiates an automatic driving service, and the core network performs switching parameter configuration on the terminal 1 in consideration of the high-speed moving motion state and the high-continuity service type of the terminal, so that the user 1 can stay in the wide-coverage network as much as possible to ensure the continuity of the automatic driving service.
The user 2 and the user 3 are pedestrians and simultaneously initiate services, the user 2 sends voice services, the user 3 initiates VR (virtual reality) video services, the core network combines the service types and the motion states of the user 2 and the user 3 and the load capacities of the base station A and the base station B to perform switching parameter configuration on the user 2 and the user 3, the user 2 is switched to the base station A with wide coverage as much as possible, and the user 3 is switched to the base station B with large capacity as much as possible, so that the good effect of service load balancing of each base station in the network can be achieved.
In the method of the embodiment, the core network device generates the switching parameter according to the current terminal state information, the service base station state information and the adjacent base station state information, and issues the switching parameter to the terminal and the service base station, and the subsequent terminal and the base station can trigger the switching process of the terminal based on the switching parameter issued by the core network, so as to realize the configuration of the switching parameter of a single terminal, and can take more factors into consideration when judging the switching. In the method of the embodiment, the core network dynamically generates the switching parameters according to the states of the terminal, the service base station and the adjacent base station, so that the method better conforms to the service and application scenes of the terminal, provides a more personalized mobility management mode aiming at different conditions of each terminal, can better adapt to the development trend of future multi-network fusion, coexistence of multiple terminals and simultaneous execution of multiple services, perfects the network switching management mode, improves the rationality of the switching strategy provided for the terminal, improves the service quality, and improves the user perception effect and the network operation efficiency.
The present disclosure also provides a core network device, which is described below with reference to fig. 2.
Fig. 2 is a block diagram of some embodiments of a core network device of the present disclosure. As shown in fig. 2, the apparatus 20 of this embodiment includes: an information acquisition module 202, a switching parameter generation module 204 and a switching parameter issuing module 206.
An information obtaining module 202, configured to obtain current terminal state information, serving base station state information, and neighbor base station state information.
In some embodiments, the information obtaining module 202 is configured to obtain current terminal state information, serving base station state information, and neighbor base station state information in response to a state change of the terminal, the serving base station, or the neighbor base station, or periodically obtain the current terminal state information, the serving base station state information, and the neighbor base station state information.
In some embodiments, the terminal state information includes: at least one item of information of service type, motion state and equipment state of terminal operation; the serving base station state information includes: at least one of load information, coverage information, and capacity information of the serving base station; the neighbor base station state information includes: at least one item of load information, coverage information and capacity information of the adjacent base station; the load information includes: at least one of current load information and load information predicted for a next period.
And a handover parameter generating module 204, configured to generate a handover parameter according to the terminal state information, the serving base station state information, and the neighboring base station state information.
In some embodiments, the handover parameter generating module 204 is configured to generate a handover parameter according to a matching degree between the terminal state and the serving base station state and a matching degree between the terminal state and the neighboring base station state; the higher the matching degree of the terminal state and the state of the serving base station is, the lower the probability that the terminal is switched from the serving base station to the adjacent base station is caused by the generated switching parameters.
Further, the terminal state information includes: the service type of the terminal operation; under the condition that the terminal runs various services, the matching degree of the terminal state and the service base station state is determined according to the matching degree of different types of services and the service base station state and the weights of the different types of services, and the matching degree of the terminal state and the adjacent base station state is determined according to the matching degree of the different types of services and the adjacent base station state and the weights of the different types of services.
In some embodiments, the handover parameter generation module 204 is configured to input the terminal state information, the serving base station state information, and the neighboring base station state information into a pre-trained machine learning model, and generate a handover parameter according to the output handover probability; wherein the higher the handover probability, the higher the generated handover parameter results in a higher probability of the terminal handing over from the serving base station to the neighbor base station.
And a handover parameter issuing module 206, configured to send the handover parameter to the terminal and the serving base station, so that the terminal performs handover based on the handover parameter.
The core network devices in the embodiments of the present disclosure may each be implemented by various computing devices or computer systems, which are described below in conjunction with fig. 3 and 4.
Fig. 3 is a block diagram of some embodiments of a core network device of the present disclosure. As shown in fig. 3, the core network device 30 of this embodiment includes: a memory 310 and a processor 320 coupled to the memory 310, the processor 320 configured to perform a handover method in any of the embodiments of the present disclosure based on instructions stored in the memory 310.
Fig. 4 is a block diagram of other embodiments of a core network apparatus according to the present disclosure. As shown in fig. 4, the core network device 40 of this embodiment includes: memory 410 and processor 420 are similar to memory 310 and processor 320, respectively. An input output interface 430, a network interface 440, a storage interface 450, and the like may also be included. These interfaces 430, 440, 450 and the connection between the memory 410 and the processor 420 may be, for example, via a bus 460. The input/output interface 430 provides a connection interface for input/output devices such as a display, a mouse, a keyboard, and a touch screen. The network interface 440 provides a connection interface for various networked devices, such as may connect to a database server or a cloud storage server, etc. The storage interface 450 provides a connection interface for external storage devices such as an SD card and a usb disk.
The present disclosure also provides a handover system, described below in conjunction with fig. 5.
Fig. 5 is a block diagram of some embodiments of the switching system of the present disclosure. As shown in fig. 5, the system 5 of this embodiment includes: the core network device 20/30/40 of any of the preceding embodiments, as well as the serving base station 52, the terminal 54.
The serving base station 52 is configured to receive the handover parameter sent by the core network device.
A terminal 54, configured to receive the handover parameters sent by the core network device, and further configured to send the state information of the terminal to the core network device
Further, the system 5 may further include: one or more neighboring base stations 56.
The neighboring base station 56 may be configured to send the status information of the base station to the core network device.
As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only exemplary of the present disclosure and is not intended to limit the present disclosure, so that any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.
Claims (15)
1. A method of handover, comprising:
the core network equipment acquires current terminal state information, service base station state information and adjacent base station state information;
the core network equipment generates a switching parameter according to the terminal state information, the service base station state information and the adjacent base station state information;
and the core network equipment sends the switching parameters to the terminal and the service base station so that the terminal can carry out switching based on the switching parameters.
2. The handover method of claim 1,
the core network device obtaining the current terminal state information, the service base station state information and the adjacent base station state information includes:
the core network equipment responds to the state change of the terminal, the service base station or the adjacent base station and acquires the current terminal state information, the service base station state information and the adjacent base station state information;
or, the core network device periodically acquires the current terminal state information, the serving base station state information, and the neighboring base station state information.
3. The handover method according to claim 1, wherein the core network device generating the handover parameter according to the terminal state information, the serving base station state information, and the neighbor base station state information comprises:
the core network equipment generates a switching parameter according to the matching degree of the terminal state and the service base station state and the matching degree of the terminal state and the adjacent base station state;
and the higher the matching degree of the terminal state and the state of the service base station is, the lower the probability that the terminal is switched from the service base station to the adjacent base station is caused by the generated switching parameter.
4. The handover method of claim 3,
the terminal state information includes: the service type of the terminal operation;
under the condition that the terminal operates various services, the matching degree of the terminal state and the service base station state is determined according to the matching degree of different types of services and the service base station state and the weights of the different types of services, and the matching degree of the terminal state and the adjacent base station state is determined according to the matching degree of the different types of services and the adjacent base station state and the weights of the different types of services.
5. The handover method according to claim 1, wherein the core network device generating the handover parameter according to the terminal state information, the serving base station state information, and the neighbor base station state information comprises:
the core network equipment inputs the terminal state information, the service base station state information and the adjacent base station state information into a machine learning model trained in advance, and generates switching parameters according to the output switching probability;
wherein the higher the handover probability, the higher the generated handover parameter results in a higher probability of the terminal handing over from the serving base station to the neighbor base station.
6. The handover method according to any one of claims 1 to 5,
the terminal state information includes: at least one item of information of the service type, the motion state and the equipment state of the terminal operation;
the serving base station state information includes: at least one of load information, coverage information, and capacity information of the serving base station;
the neighbor base station state information includes: at least one of load information, coverage information and capacity information of the neighboring base station;
the load information includes: at least one of current load information and load information predicted for a next period.
7. A core network device, comprising:
the information acquisition module is used for acquiring current terminal state information, service base station state information and adjacent base station state information;
a switching parameter generating module, configured to generate a switching parameter according to the terminal state information, the serving base station state information, and the neighboring base station state information;
and the switching parameter issuing module is used for sending the switching parameters to the terminal and the service base station so that the terminal can switch based on the switching parameters.
8. The core network device of claim 7,
the information acquisition module is used for responding to the state change of the terminal, the service base station or the adjacent base station, and acquiring the current terminal state information, the current service base station state information and the current adjacent base station state information, or periodically acquiring the current terminal state information, the current service base station state information and the current adjacent base station state information.
9. The core network device of claim 7,
the switching parameter generating module is used for generating switching parameters according to the matching degree of the terminal state and the service base station state and the matching degree of the terminal state and the adjacent base station state;
and the higher the matching degree of the terminal state and the state of the service base station is, the lower the probability that the terminal is switched from the service base station to the adjacent base station is caused by the generated switching parameter.
10. The core network device of claim 9,
the terminal state information includes: the service type of the terminal operation;
under the condition that the terminal operates various services, the matching degree of the terminal state and the service base station state is determined according to the matching degree of different types of services and the service base station state and the weights of the different types of services, and the matching degree of the terminal state and the adjacent base station state is determined according to the matching degree of the different types of services and the adjacent base station state and the weights of the different types of services.
11. The core network device of claim 7,
the switching parameter generating module is used for inputting the terminal state information, the service base station state information and the adjacent base station state information into a machine learning model trained in advance, and generating switching parameters according to the output switching probability;
wherein the higher the handover probability, the higher the generated handover parameter results in a higher probability of the terminal handing over from the serving base station to the neighbor base station.
12. The core network device of any of claims 7-11,
the terminal state information includes: at least one item of information of the service type, the motion state and the equipment state of the terminal operation;
the serving base station state information includes: at least one of load information, coverage information, and capacity information of the serving base station;
the neighbor base station state information includes: at least one of load information, coverage information and capacity information of the neighboring base station;
the load information includes: at least one of current load information and load information predicted for a next period.
13. A core network device, comprising:
a memory; and
a processor coupled to the memory, the processor configured to perform the handover method of any of claims 1-6 based on instructions stored in the memory device.
14. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 6.
15. A handover system, comprising: the core network device of any one of claims 7-13; and
the terminal is used for receiving the switching parameters issued by the core network equipment;
and the service base station is used for receiving the switching parameters issued by the core network equipment.
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