Method for transmitting information, device, and storage medium

Abstract

Embodiments of the present disclosure provide a method for transmitting information, a device, and a storage medium. The method comprises: sending first information to a second network-side node, the first information comprising at least one of the following: a predicted slice service area, a predicted congested slice identifier, a slice congestion probability, a predicted slice congestion cause, a predicted slice congestion time within a slice service area or a first network-side node, predicted resource state information of one or more slices within the first network-side node, the residence time of a terminal within the slice service area, and the residence time of the terminal within the first network-side node and / or a cell.

Description

Information transmission method, device and storage medium

[0001] Cross-reference to Related Applications

[0002] The present application claims priority from Chinese Patent Application No. 202410416335.5 filed on April 8, 2024, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present disclosure relates to the technical field of mobile communication, and in particular to an information transmission method, device and storage medium. BACKGROUND

[0004] In the existing user equipment (UE) switching scenario, as the number of UEs receiving a certain slice service in the slice service area increases, the resources occupied by the UEs in the slice service area will increase. The slice service area needs to update the slice service types supported in the area or adjust the size of the area as the business needs of the UEs increase or decrease. In related technologies, the base station is often statically configured by network management (Operation Administration and Maintenance, OAM) to update the slice service area, but this adjustment mechanism is relatively lagging, and only after the base station resources are congested will the update or adjustment be performed. The current mechanism does not support the network management, core network or base station to change or adjust the slice service area and / or the slice service in the slice service area in advance based on the input information of (other) base stations. SUMMARY

[0005] At least one embodiment of the present disclosure provides an information transmission method, device and storage medium. By transmitting prediction information between network side nodes, the network side nodes can perform slice-related operations in advance based on the prediction information, thereby improving the flexibility of slice service deployment.

[0006] To solve the above technical problems, the present disclosure is implemented as follows:

[0007] In a first aspect, an embodiment of the present disclosure provides an information transmission method applied to a first network side node, comprising:

[0008] sending first information to a second network side node, the first information comprising at least one of:

[0009] a predicted slice service area;

[0010] a predicted congested slice identifier;

[0011] a predicted slice congestion probability;

[0012] a slice congestion reason;

[0013] a predicted slice congestion time within the slice service area or the first network side node;

[0014] a predicted resource status information of one or more slices within the first network side node;

[0015] a residence time of the terminal within the slice service area;

[0016] a residence time of the terminal within the first network side node and / or cell.

[0017] Optionally, the slice service area comprises at least one of: a predicted cell within the slice service area; a predicted newly added cell within the slice service area; a predicted removed cell within the slice service area.

[0018] Optionally, before sending the first information to the second network side node, the method further comprises:

[0019] receiving first request information sent by the second network side node, the first request information being used for requesting the first information of the first network side node.

[0020] Optionally, the content requested by the first request information comprises at least one of: a terminal identifier; a slice identifier; a slice service area; a slice identifier within the slice service area; a congested slice identifier; a slice congestion probability; a slice congestion cause; a slice congestion time within the slice service area or the first network side node; a resource status information of each slice within the first network side node; a residence time of the terminal within the slice service area; a residence time of the terminal within the first network side node and / or cell.

[0021] Optionally, the method further comprises:

[0022] receiving second information, the first information being predicted based on the second information, wherein the second information comprises at least one of: a measurement quantity reported by the terminal; trajectory information of the terminal, slice service information of the terminal, a number of terminals served by the slice, a number of terminals served by the base station, a slice service area.

[0023] Optionally, the method further comprises:

[0024] sending the third information to the second network side node, wherein the third information comprises at least one of:

[0025] a slice identifier with high congestion or resource utilization;

[0026] a slice identifier with low resource utilization;

[0027] a resource utilization level or congestion degree of a slice at the first network side node.

[0028] a slice service area of the first network side node;

[0029] a residence time of the terminal in the first network side node or the slice service area;

[0030] a residence time of the terminal in a cell of the slice service area;

[0031] a time when the slice is congested.

[0032] Optionally, the method further comprises:

[0033] receiving second request information sent by the second network side node, the second request information being used for requesting the third information;

[0034] sending the third information after the terminal switches to the first network node.

[0035] Optionally, the method further comprises at least one of the following:

[0036] in a case where the slice resource utilization is higher than a first threshold, sending, to the first network side node, a slice identifier of the slice whose resource utilization is higher than the first threshold;

[0037] in a case where the slice resource utilization is lower than a second threshold, sending, to the first network side node, a slice identifier of the slice whose resource utilization is lower than the second threshold.

[0038] Optionally, the first information and the third information are carried in a same message or different messages and sent to the second network side node.

[0039] In a second aspect, an information transmission method is provided, which is applied to a second network side node and comprises:

[0040] receiving first information sent by a first network side node, the first information being information requested by the second network side node and comprising at least one of the following:

[0041] a predicted slice service area;

[0042] a predicted congested slice identifier;

[0043] a predicted slice congestion probability;

[0044] a slice congestion cause;

[0045] a predicted slice congestion time in the slice service area or the first network side node;

[0046] a predicted resource state information of one or more slices in the first network side node;

[0047] residence time of the terminal in the slice service area;

[0048] residence time of the terminal in the first network side node and / or cell.

[0049] Optionally, the slice service area comprises at least one of: a cell in the predicted slice service area; a newly added cell in the predicted slice service area; a removed cell in the predicted slice service area.

[0050] Optionally, before receiving the first information, the method further comprises:

[0051] sending first request information to the first network side node, the first request information being used to request the first information.

[0052] Optionally, the content requested by the first request information comprises at least one of: a terminal identifier; a slice identifier; a slice service area; a slice identifier in the slice service area; a congested slice identifier; a slice congestion probability; a slice congestion cause; a slice congestion time in the slice service area or the first network side node; resource status information of each slice in the first network side node; residence time of the terminal in the slice service area; residence time of the terminal in the first network side node and / or cell.

[0053] Optionally, the method further comprises:

[0054] receiving third information sent by the first network side node, wherein the third information comprises at least one of:

[0055] a slice identifier with high congestion or resource utilization;

[0056] a slice identifier with low resource utilization;

[0057] a resource utilization level or congestion degree of a slice at the first network side node;

[0058] a slice service area of the first network side node;

[0059] residence time of the terminal in the first network side node or in the slice service area;

[0060] residence time of the terminal in a cell in the slice service area;

[0061] a time when the slice is congested.

[0062] Optionally, the method further comprises:

[0063] sending second request information to the first network side node, the second request information being used for requesting the first network side node to send the third information after the terminal switches to the first network side node.

[0064] Optionally, the method further comprises:

[0065] receiving slice identifiers of which slice resource utilization is higher than a first threshold and / or slice identifiers of which slice resource utilization is lower than a second threshold sent by the first network side node.

[0066] In a third aspect, the embodiments of the present disclosure provide a first network side node, comprising:

[0067] a first sending module configured to send first information to a second network side node, the first information comprising at least one of:

[0068] a slice service area;

[0069] a slice identifier in the slice service area;

[0070] a congested slice identifier;

[0071] a slice congestion probability;

[0072] a slice congestion cause;

[0073] a slice congestion time in the slice service area or the first network side node;

[0074] resource status information of one or more slices in the first network side node;

[0075] a residence time of a terminal in the slice service area;

[0076] a residence time of a terminal in the first network side node and / or a cell.

[0077] In a fourth aspect, the embodiments of the present disclosure provide a second network side node, comprising:

[0078] a first receiving module configured to receive first information sent by a first network side node, the first information being information requested by the second network side node, comprising at least one of:

[0079] a slice service area;

[0080] a slice identifier in the slice service area;

[0081] a congested slice identifier;

[0082] a slice congestion probability;

[0083] a slice congestion cause;

[0084] slice congestion time within the slice service area or the first network side node;

[0085] resource status information of one or more slices within the first network side node;

[0086] residence time of the terminal within the slice service area;

[0087] residence time of the terminal within the first network side node and / or cell.

[0088] In a fifth aspect, an embodiment of the present disclosure provides a first network side node, comprising: a processor, a memory, and a program stored in the memory and executable on the processor, when the program is executed by the processor, steps of the method according to the first aspect are implemented.

[0089] In a sixth aspect, an embodiment of the present disclosure provides a second network side node, comprising: a processor, a memory, and a program stored in the memory and executable on the processor, when the program is executed by the processor, steps of the method according to the second aspect are implemented.

[0090] In a seventh aspect, an embodiment of the present disclosure provides a computer readable storage medium, the computer readable storage medium stores a program, when the program is executed by a processor, steps of the method according to the first aspect or the second aspect are implemented.

[0091] In an eighth aspect, an embodiment of the present disclosure provides a computer program product, comprising computer instructions, when the computer instructions are executed by a processor, steps of the method according to the first aspect or the second aspect are implemented.

[0092] Compared with the related art, the information transmission method, device and storage medium provided by the embodiment of the present disclosure, by the first network side node sending the first information requested by it to the second network side node, makes the second network side node able to perform slice-related operations in advance based on the first information, and can improve the flexibility of slice service deployment. In addition, in the embodiment of the present disclosure, the first network side node can also collect the third information related to the slice and send it to the second network side node. So that the second network side node can optimize the second model according to the third information to improve the performance of the second model. BRIEF DESCRIPTION OF DRAWINGS

[0093] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of preferred embodiments, and are not meant to limit the present disclosure. Moreover, the same reference numerals in the attached drawings indicate the same or similar components. In the drawings:

[0094] FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present disclosure;

[0095] FIG. 2 is a schematic diagram of a functional framework of an AI / ML model;

[0096] FIG. 3 is a flowchart of an information transmission method applied to a first network-side node according to an embodiment of the present disclosure;

[0097] FIG. 4 is a flowchart of an information transmission method applied to a second network-side node according to an embodiment of the present disclosure;

[0098] FIG. 5 is a schematic diagram of a structure of a first network-side node according to an embodiment of the present disclosure;

[0099] FIG. 6 is a schematic diagram of a structure of a second network-side node according to an embodiment of the present disclosure.

[0100] FIG. 7 is a schematic diagram of a structure of a first network-side node according to another embodiment of the present disclosure;

[0101] FIG. 8 is a schematic diagram of a structure of a second network-side node according to another embodiment of the present disclosure. DETAILED DESCRIPTION

[0102] The terms "first", "second", and the like in the present disclosure are used to distinguish similar objects, and are not used to describe a particular order or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present disclosure can be implemented in an order other than that illustrated or described herein, and the objects distinguished by "first", "second" are generally of a kind and do not limit the number of objects, for example, the first object can be one or more. In addition, "or" in the present disclosure means at least one of the connected objects. For example, "A or B" covers three scenarios, namely, scenario one: including A and not including B; scenario two: including B and not including A; scenario three: including A and B. The character " / " generally represents that the objects before and after are in an "or" relationship.

[0103] The term "indication" in the present disclosure can be a direct indication (or explicit indication) or an indirect indication (or implicit indication). The direct indication can be understood as the sender explicitly informing the receiver of specific information, operations to be performed or requested results, etc. in the indication sent by the sender. The indirect indication can be understood as the receiver determining the corresponding information according to the indication sent by the sender, or judging and determining the operations to be performed or the requested results according to the judgment result.

[0104] It is worth noting that the technology described in the embodiments of the present disclosure is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present disclosure are often used interchangeably, and the described technology can be used in the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th Generation (6G) communication systems.

[0105] FIG. 1 shows a block diagram of a wireless communication system to which embodiments of the present disclosure can be applied. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can be a terminal-side device such as a mobile phone, a Tablet Personal Computer, a Laptop Computer, a notebook computer, a Personal Digital Assistant (PDA), a palmtop computer, a netbook, an Ultra-mobile Personal Computer (UMPC), a Mobile Internet Device (MID), an Augmented Reality (AR) device, a Virtual Reality (VR) device, a robot, a wearable device, a flight vehicle, a Vehicle User Equipment (VUE), a shipboard device, a Pedestrian User Equipment (PUE), a smart home (a home device with a wireless communication function such as a refrigerator, a television, a washing machine, or furniture, etc.), a game console, a Personal Computer (PC), a kiosk, or a self-service machine, etc. The wearable device includes a smart watch, a smart bracelet, a smart earphone, smart glasses, smart jewelry (a smart bracelet, a smart necklace, a smart ring, a smart necklace, a smart anklet, a smart necklace, etc.), a smart wristband, smart clothes, etc. The vehicle-mounted device can also be referred to as a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip, or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present disclosure. The network-side device 12 can include an access network device or a core network device. The access network device can also be referred to as a Radio Access Network (RAN) device, a radio access network function, or a radio access network unit. The access network device can include a base station, a Wireless Local Area Network (WLAN) Access Point (AP), or a Wireless Fidelity (WiFi) node, etc.The base station can be referred to as a Node B (NB), an evolved Node B (eNB), a next generation Node B (gNB), a New Radio Node B (NR Node B), an access point, a relay station (RBS), a serving base station (SBS), a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a home Node B (HNB), a home evolved Node B, a transmission reception point (TRP), or some other suitable terminology in the art, and is not limited to a particular technical word as long as the same technical effect is achieved. It should be noted that in the embodiments of the present disclosure, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.

[0106] The core network device can include, but is not limited to, at least one of the following: a core network node, a core network function, a mobility management entity (MME), an access and mobility management function (AMF), a session management function (SMF), a user plane function (UPF), a policy control function (PCF), a policy and charging rules function (PCRF), an edge application server discovery function (EASDF), a unified data management (UDM), a unified data repository (UDR), a home subscriber server (HSS), a centralized network configuration (CNC), a network repository function (NRF), a network exposure function (NEF), a local NEF (or L-NEF), a binding support function (BSF), an application function (AF), and the like. It should be noted that only the core network device in the NR system is taken as an example for introduction in the embodiments of the present disclosure, and the specific type of the core network device is not limited.

[0107] Currently, the main goal of Artificial Intelligence (AI) / Machine Learning (ML) at the base station side is to improve network performance and user experience by analyzing data collected and autonomously processed at the base station side. Currently, AI / ML in the Next Generation Radio Access Network (NG-RAN) is mainly used in three application scenarios, namely network energy saving, network load balancing, and mobility optimization. As shown in FIG. 2, the AI / ML process is to train a model based on data collected by the base station, and use the AI / ML model to form an inference decision or strategy. The inference decision or strategy will be handed over to the execution module, and the execution module will perform corresponding operations based on the inference decision or strategy.

[0108] In the NG-RAN, AI / ML application scenarios need to be considered for slices. With the evolution of technology, cells within the same Tracking Area (TA) region no longer require support for the same slice service. In addition, the service area of a network slice is not necessarily granular in the TA region. The boundaries of the slice service area supported by the network slice and the TA region do not necessarily match, and some cells within the TA region can not support a certain slice within the slice service area. At this time, the cell that does not support the slice or the cell that does not support the slice has zero resources for a slice, that is, the slice cannot use all resources within the cell, including dedicated resources, priority resources, and common resources. For slices within the TA, the network management (OAM) will configure the base station with a list of cells within the TA that do not support slices or for which slices are not available. The list can be exchanged between base stations during interface establishment or base station configuration update processes, and the base station can select to hand over a UE to a suitable cell based on the received list of cells.

[0109] As described in the background, the related art tends to update the slice service area by statically configuring the base station through the network management (OAM). This adjustment mechanism is relatively lagging, and is usually updated or adjusted only after the base station resources are congested. To solve at least one of the above problems, the embodiments of the present disclosure provide an information transmission method, which transmits prediction information between network side nodes, so that the network side nodes can perform slice-related operations in advance based on the prediction information, thereby improving the flexibility of slice service deployment.

[0110] The information transmission method provided by the embodiments of the present disclosure is applied between a first network side node and a second network side node. The first network side node can be one of a base station, a core network device, or a network management (OAM). The second network side node can also be one of a base station, a core network device, or a network management (OAM).

[0111] Referring to FIG. 3, the information transmission method provided by the embodiments of the present disclosure, when applied to the first network side node, comprises the following steps:

[0112] In step 31, the first information is sent to the second network side node.

[0113] In an implementation manner, the sending of the first information to the second network side node can comprise: sending the first information requested by the second network side node to the second network side node.

[0114] Here, the first network side node can use a local first model to predict the first information. The first model can be a first AI / ML model. Specifically, the first information comprises at least one of the following:

[0115] (1) a predicted slice service area;

[0116] Here, the slice service area predicted by the first network node can comprise at least one of the following: a cell in the predicted slice service area; a newly added cell in the predicted slice service area; a removed cell in the predicted slice service area. In the embodiments of the present disclosure, the first network side node can use the first model to predict the range of the slice service area in the future period of time, and the range of the slice service area can be composed of a cell list. The first network side node can also predict the change amount of the slice service area in the future period of time, such as the number of added or reduced cells. Optionally, the embodiments of the present disclosure can introduce a 1-bit indication bit to indicate whether the change amount is an increase / expansion or a decrease / reduction. For example, when the indication bit takes the value 1, it means an increase or expansion; when the value is 0, it means a decrease or reduction. In this way, when the change amount of the slice service area indicates at least one cell, the cell list corresponding to the slice service area can be updated according to the indication bit, for example, the at least one cell is added or reduced in the cell list corresponding to the slice service area.

[0117] (2) a predicted congested slice identifier;

[0118] Here, the congested slice identifier predicted by the first network node refers to the predicted slice identifier that will be congested. The first network side node can use the first model to predict the slice that will be congested in the slice service area in the future period of time, thereby obtaining the congested slice identifier.

[0119] (3) a predicted slice congestion probability;

[0120] Here, the slice congestion probability predicted by the first network node refers to a probability of predicting that the slice will be congested. For example, the first network side node can use the first model to predict the slice to be congested in the slice service area in the future period of time, and further obtain the probability of being congested output by the model. The second network side node can determine whether to use the first information based on the above probability. Alternatively, the second network side node can be pre-configured with a threshold value of the above probability, for example, by network management configuration or operator pre-definition configuration to the second network side node. In the case where the above probability exceeds the threshold value, the second network side node performs related processing based on the received first information.

[0121] (4) Slice congestion reason;

[0122] Here, the slice congestion reason predicted by the first network node refers to the reason for predicting that the slice will be congested, for example, the reason can include that the number of UEs entering the slice service area is too large, etc.

[0123] (5) Predicted slice congestion time in the slice service area or the first network side node;

[0124] Here, the slice congestion time predicted by the first network node in the slice service area or the first network side node refers to the time of predicting that the slice in the slice service area will be congested or the time of predicting that the slice in the first network side node will be congested. The slice congestion time can be represented by the congestion start time and the congestion time length, or can be represented by the congestion start time and the congestion end time. In addition, whether the slice is congested can be determined by whether the predicted slice resource occupancy rate exceeds the preset threshold.

[0125] (6) Resource state information of one or more predicted slices in the first network side node;

[0126] In an embodiment, the resource state information can be understood or replaced as resource occupancy information.

[0127] In an embodiment, the resource state information of one or more predicted slices in the first network side node can refer to the resource occupancy information of each predicted slice in the first network side node.

[0128] Here, the resource status information of each slice predicted by the first network node in the first network side node can be specifically a percentage of resource occupied by each slice, for example, a percentage of resource occupied by each slice in the slice service area or in the first network side node in the future or a resource utilization. Of course, the resource status information can also be abstracted by a predicted slice resource occupation level to abstract the percentage of slice resource occupation. When the device manufacturer does not want to expose the occupation of slice resource, the slice congestion level can also be used as a replacement, and the grading rules of the slice congestion level can be pre-configured by the network to the first network side node.

[0129] (7) a residence time of the terminal in the slice service area;

[0130] Here, the residence time of the terminal in the slice service area predicted by the first network node can be specifically a residence time of the terminal in the current slice service area and / or a residence time of the terminal in the predicted slice service area. Similarly, the residence time can also be represented by a residence start time and a residence time length, or represented by a residence start time and a residence end time. The terminal can be a specified terminal, for example, a terminal specified by the second network side node.

[0131] (8) a residence time of the terminal in the first network side node and / or cell.

[0132] Here, the first network node can predict the residence time of the terminal in the first network side node, or predict the residence time of the terminal in one or more cells of the first network side node. The residence time can also be represented by a residence start time and a residence time length, or represented by a residence start time and a residence end time. The terminal can be a specified terminal, for example, a terminal specified by the second network side node.

[0133] Through the above steps, the first network side node can send the first information requested by the first network side node to the second network side node, so that the second network side node can perform slice-related operations in advance based on the first information, and the flexibility of slice service deployment can be improved.

[0134] In a case that the first network side node is a base station and the second network side node is a core network device, the first network side node can send the first information to the second network side node through an NG interface between the base station and the core network device. In a case that the first network side node and the second network side node are both base stations, the first network side node can send the first information to the second network side node through an Xn interface between the base stations. In a case that the first network side node is a base station and the second network side node is a network management device, the first network side node can send the first information to the second network side node through an interface between the base station and the network management device.

[0135] In the embodiments of the present disclosure, the first network side node can perform prediction and obtain the first information according to a request of the second network side node. For example, before step 31, the first network side node can receive first request information sent by the second network side node, and the first request information is used to request the first information predicted by the second network side node. After receiving the first request information, the first network side node performs prediction to obtain the first information and sends the first information to the second network side node.

[0136] Specifically, the content requested by the first request information to perform prediction can include at least one of the following: a terminal identifier; a slice identifier; a slice service area; a slice identifier in the slice service area; a congested slice identifier; a slice congestion probability; a slice congestion cause; a slice congestion time in the slice service area or the first network side node; resource state information of each slice in the first network side node; a residence time of a terminal in the slice service area; a residence time of a terminal in the first network side node and / or a cell. The first network side node can perform relevant prediction based on the content in the first request information.

[0137] For example, the slice identifier contained in the first request information is used to indicate a slice for which the first network side node is requested to perform prediction. The information of the slice service area contained in the first request information is used to indicate a slice service area for which the first network side node is requested to perform prediction. The terminal identifier contained in the first request information indicates a target terminal for which prediction is requested, for example, the residence time of the target terminal in the slice service area, in the first network side node, or in a cell, etc.

[0138] In the embodiments of the present disclosure, before step 31, the first network side node can receive second information to predict the first information, wherein the second information includes at least one of the following: a measurement quantity reported by the terminal; trajectory information of the terminal, slice service information of the terminal, the number of terminals served by the slice service, the number of terminals served by the base station, and the slice service area. For example, after receiving the second information, the first network side node inputs the second information into a local first model to predict the first information through the first model.

[0139] After sending the first information to the second network side node, the second network side node can perform related slice processing based on the first information. For example, the second network side node inputs the first information into a local second model to obtain a slice processing suggestion generated by the second model, and performs slice processing according to the suggestion. Here, the second model can be a second AI / ML model. Through the transmission of information between network side nodes, the embodiments of the present disclosure enable the second network side node to perform slice-related operations in advance based on the first information, and improve the flexibility of slice service deployment.

[0140] The second network side node performing related slice processing can cause the slice-related information at the first network side node to change. At this time, the first network side node can also collect third information related to the slice and send it to the second network side node. In this way, the second network side node can evaluate the slice processing suggestion generated by the second model according to the third information, and then optimize the second model according to the evaluation result to improve the performance of the second model.

[0141] Specifically, the third information is actual slice information collected by the first network side node, and can include at least one of the following:

[0142] (1) slice identifier with high congestion or resource utilization rate;

[0143] (2) slice identifier with low resource utilization rate;

[0144] (3) resource utilization level or congestion degree of the slice at the first network side node;

[0145] (4) slice service area of the first network side node, wherein the slice service area of the first network side node can be the updated slice service area of the first network side node after the second network side node performs slice-related operations. The second network side node can optimize the handover decision of the UE based on the updated slice service area of the first network side node.

[0146] (5) residence time of the terminal in the first network side node or the slice service area;

[0147] (6) the terminal's residence time in the cell of the slice service area;

[0148] (7) the time when the slice is congested.

[0149] The slice with high resource utilization or the congested slice can be a slice with resource utilization greater than a preset threshold. The slice with low resource utilization can be a slice with resource utilization lower than another preset threshold. The various residence times and the time when the slice is congested can be represented by a start time + a time length, or represented by a start time + an end time.

[0150] Optionally, in the embodiments of the present disclosure, the first network side node can also send, to the first network side node, the slice identifier of the slice with resource utilization higher than the first threshold, in the case that the resource utilization of the slice is higher than the first threshold; and / or send, to the first network side node, the slice identifier of the slice with resource utilization lower than the second threshold, in the case that the resource utilization of the slice is lower than the second threshold.

[0151] As an optional implementation, the second network side node can send the first request information to the first network side node before the handover decision of the first terminal, for requesting the first information, wherein the first request information can comprise the terminal identifier of the first terminal, and can further comprise at least one of the following information: slice identifier; slice service area; congested slice identifier; slice congestion probability; slice congestion cause; slice congestion time in the slice service area or the first network side node; resource status information of each slice in the first network side node; residence time of the first terminal in the slice service area; residence time of the first terminal in the first network side node and / or cell. The first network side node predicts the first information according to second information, wherein the second information comprises at least one of the following: measurement quantity reported by the first terminal; trajectory information of the first terminal, slice service information serving the first terminal, number of terminals served by the slice, number of terminals served by the base station, slice service area, etc.; and the first information comprises at least one of the following: predicted slice service area; predicted congested slice identifier; predicted slice congestion probability; slice congestion cause; predicted slice congestion time in the slice service area or the first network side node; predicted resource status information of one or more slices in the first network side node; residence time of the first terminal in the slice service area; and residence time of the first terminal in the first network side node and / or cell. The second network side node receives the first information, and makes a handover decision of the first terminal according to the first information, for example, generates the handover decision of the first terminal by using a second model, which can specifically comprise target network side node, target cell, target slice service area, etc. of the handover of the first terminal. The second network side node can further send second request information to the first network side node, wherein the second request information is used for requesting the first network side node to send the third information after the terminal (for example, the first terminal) is handed over to the first network side node. Specifically, the second request information can comprise the terminal identifier of the terminal (for example, the first terminal). In this way, the first network side node receives the second request information sent by the second network side node, the second request information is used for requesting the third information, and the first network side node acquires the third information after the terminal (for example, the first terminal) is handed over to the first network node. For example, the first network side node measures or counts actual slice information according to the second request information, and then sends the third information to the second network side node. The second network side node can evaluate the handover decision generated by the second model based on the third information, and then optimize the second model according to the evaluation result, so as to improve the performance of the second model.

[0152] In the embodiments of the present disclosure, the second network side node can request the first network side node to collect the third information related to the slice by sending a handover request message or a data collection request message to the first network side node. The first network side node can send the third information to the second network side node by carrying the third information in a handover request reply message, a data collection reply message or a data collection update message.

[0153] In addition, it should be noted that the first information and the third information described above can be carried in the same message or different messages and sent to the second network side node, and the embodiments of the present disclosure do not make specific limitations on this.

[0154] Please refer to FIG. 4. The information transmission method provided by the embodiments of the present disclosure, when applied to the second network side node, comprises the following steps:

[0155] In step 41, the first information sent by the first network side node is received. The first information is the information requested by the second network side node, and comprises at least one of the following:

[0156] (1) predicted slice service area;

[0157] (2) predicted congestion slice identifier;

[0158] (3) predicted slice congestion probability;

[0159] (4) slice congestion reason;

[0160] (5) predicted slice service area or slice congestion time in the first network side node;

[0161] (6) resource state information of one or more predicted slices in the first network side node;

[0162] (7) residence time of the terminal in the first network side node or the slice service area;

[0163] (8) residence time of the terminal in the first network side node and / or cell.

[0164] For specific descriptions of each information in the first information, please refer to the description in the foregoing description, which will not be repeated here.

[0165] Through the above steps, the second network side node can perform slice-related operations in advance based on the first information related to the slice predicted by other network side nodes, thereby improving the flexibility of slice service deployment.

[0166] Before the above step 41, the second network side node can also send first request information to the first network side node, wherein the first request information is used to request the first information.

[0167] Specifically, the first request information requests the predicted content to include at least one of the following: a terminal identifier; a slice identifier; a slice service area; a slice identifier within the slice service area; a congested slice identifier; a slice congestion probability; a slice congestion cause; a slice congestion time within the slice service area or the first network side node; resource status information of each slice within the first network side node; a residence time of the terminal within the slice service area; a residence time of the terminal within the first network side node and / or cell.

[0168] After the second network side node receives the first information, the second network side node can perform slice-related processing according to the first information. For example, the first information is input to a local second model to obtain a slice processing suggestion generated by the second model, and then the slice processing is performed according to the suggestion. The second model can be a second AI / ML model.

[0169] The specific implementation of the second network side node performing slice-related processing according to the first information is illustrated below.

[0170] 1. The first network side node is a base station, and the second network side node is a core network device

[0171] In the case where the second network side node is a core network device, the second network side node performs related operations according to the first information, including at least one of the following:

[0172] (1) According to the slice identifier in the slice service area that needs to be deployed or adjusted predicted by the first network side node, a first operation is performed, the first operation including at least one of the following: deploying a corresponding slice in the slice service area, adjusting a corresponding slice in the slice service area.

[0173] (2) According to the slice identifier that occurs congestion and / or the reason of the slice that occurs congestion predicted by the first network side node, a replacement slice is selected for the slice that occurs congestion, and the slice identifier of the replacement slice is sent to the corresponding terminal.

[0174] (3) According to the probability of the slice that occurs congestion predicted by the first network side node, it is determined whether to perform a related operation based on the prediction information of the first network side node. For example, only when the probability is greater than a preset probability threshold, the related operation is performed based on the prediction information of the first network side node, and when the probability is not greater than the probability threshold, the prediction information is discarded.

[0175] (4) performing a second operation according to the slice service area or the time when the slice in the first network side node is congested predicted by the first network side node, the second operation including at least one of the following: determining whether to adjust the slice service type in the slice service area; in a case where it is determined not to adjust the slice service type in the slice service area, increasing the configured resources for the slice that is congested; in a case where it is determined to adjust the slice service type in the slice service area, increasing the deployment of a replacement slice to provide services for the terminal in the slice service area, and expanding the range of the slice service area;

[0176] (5) adjusting the resource configured by the slice according to the resource state information of each slice in the first network side node predicted by the first network side node.

[0177] (6) performing a third operation according to the slice service area or the change information of the slice service area predicted by the first network side node, the third operation including at least one of the following: updating the corresponding slice service area, updating the slice supported by the slice service area, and sending the updated slice service area and / or the slice service area supported by the slice to the corresponding terminal.

[0178] (7) determining the resources reserved for the slice service area according to the residence time of the terminal in the slice service area predicted by the first network side node.

[0179] (8) increasing the first cell or deleting the second cell in the current slice service area of the terminal according to the residence time of the terminal in the base station and / or cell predicted by the first network side node, wherein the first cell is a cell whose predicted residence time of the terminal is greater than a first time length and is not in the current slice service area; and the second cell is a cell whose predicted residence time of the terminal is less than a second time length and is in the current slice service area.

[0180] 2. The first network side node is a first base station, and the second network side node is a neighboring base station of the first base station

[0181] In a case where the second network side node is a neighboring base station of the first base station, the second network side node performs a related operation according to the first information, including at least one of the following:

[0182] (1) performing a first operation according to the slice identification that needs to be deployed or adjusted in the slice service area predicted by the first network side node, the first operation including at least one of the following: deploying the corresponding slice in the slice service area, and adjusting the corresponding slice in the slice service area.

[0183] (2) According to the slice identifier and / or the reason for the slice congestion predicted by the first network side node, the cell of the first network side node is excluded when a candidate target cell is selected for the first terminal, wherein the service received by the first terminal is the service of the slice predicted by the first network side node to be congested.

[0184] (3) According to the probability of the slice predicted by the first network side node to be congested, it is determined whether to perform a related operation based on the prediction information of the first network side node. For example, only when the probability is greater than a preset probability threshold, the related operation is performed based on the prediction information of the first network side node, and when the probability is not greater than the probability threshold, the prediction information is discarded.

[0185] (4) According to the slice service area or the time when the slice in the first network side node predicted by the first network side node is congested, a second operation is performed, and the second operation includes at least one of the following: determining whether to adjust the slice service type in the slice service area; in the case of determining not to adjust the slice service type in the slice service area, increasing the configured resources for the congested slice; in the case of determining to adjust the slice service type in the slice service area, increasing the deployment of the alternative slice to provide services for the terminal in the slice service area, and expanding the range of the slice service area; in the case of the time when the slice is congested, the cell of the first network side node is excluded when a candidate target cell is selected for the second terminal, wherein the service received by the second terminal is the service of the slice predicted by the first network side node to be congested.

[0186] (5) According to the resource state information of each slice in the first network side node predicted by the first network side node, it is determined whether to select the cell of the first network side node as a candidate target cell for handover.

[0187] (6) According to the slice service area or the change information of the slice service area predicted by the first network side node, a third operation is performed, and the third operation includes at least one of the following: updating the corresponding slice service area, updating the slice supported by the slice service area, and sending the updated slice service area and / or slice service area supported by the slice to the corresponding terminal.

[0188] (7) According to the residence time of the terminal in the slice service area predicted by the first network side node, the resources reserved for the slice service area are determined.

[0189] (8) according to the terminal staying time in the base station and / or cell predicted by the first network side node, adding a first cell or deleting a second cell in the current slice service area of the terminal, wherein the first cell is a cell in which the predicted terminal staying time is greater than a first time length and is not in the current slice service area; the second cell is a cell in which the predicted terminal staying time is less than a second time length and is in the current slice service area.

[0190] 3. The first network side node is a base station, and the second network side node is an OAM (operation and maintenance)

[0191] In the case where the second network side node is an OAM, the second network side node performs relevant operations according to the first information, including at least one of the following:

[0192] (1) according to the slice identifier in the slice service area that needs to be deployed or adjusted predicted by the first network side node, performing a first operation, the first operation including at least one of the following: deploying a corresponding slice in the slice service area, adjusting a corresponding slice in the slice service area.

[0193] (2) according to the slice identifier and / or the reason for the congestion of the slice predicted by the first network side node, increasing the configured resources for the congested slice.

[0194] (3) according to the probability of the slice congestion predicted by the first network side node, determining whether to perform a relevant operation based on the prediction information of the first network side node. For example, only when the probability is greater than a preset probability threshold, the relevant operation is performed based on the prediction information of the first network side node, and when the probability is not greater than the probability threshold, the prediction information is discarded.

[0195] (4) according to the time of the slice service area or the slice in the first network side node predicted by the first network side node, performing a second operation, the second operation including at least one of the following: determining whether to adjust the slice service type in the slice service area; in the case where it is determined not to adjust the slice service type in the slice service area, increasing the configured resources for the congested slice; in the case where it is determined to adjust the slice service type in the slice service area, adding a replacement slice to provide services for the terminal in the slice service area, and expanding the range of the slice service area.

[0196] (5) according to the resource state information of each slice in the first network side node predicted by the first network side node, increasing the configured resources for the congested slice.

[0197] (6) performing a third operation according to the slice service area or the change information of the slice service area predicted by the first network side node, the third operation including at least one of the following: updating the corresponding slice service area, updating the slice supported by the slice service area, and sending the updated slice service area and / or the slice supported by the slice service area to the corresponding terminal.

[0198] (7) determining the resources reserved for the slice service area according to the residence time of the terminal in the slice service area predicted by the first network side node.

[0199] (8) increasing a first cell or deleting a second cell in the current slice service area of the terminal according to the residence time of the terminal in the base station and / or cell predicted by the first network side node, wherein the first cell is a cell whose predicted residence time of the terminal is greater than a first time length and is not in the current slice service area; and the second cell is a cell whose predicted residence time of the terminal is less than a second time length and is in the current slice service area.

[0200] After the second network side node performs the related slice processing, the slice related information at the first network side node may change, at this time, the second network side node can also receive the actual slice information collected by the first network side node, for example, receive the third information sent by the first network side node, wherein the third information includes at least one of the following:

[0201] (1) slice identifier of high congestion or resource utilization;

[0202] (2) slice identifier of low congestion or resource utilization;

[0203] (3) resource utilization level or congestion degree of the slice at the first network side node;

[0204] (4) slice service area of the first network side node;

[0205] (5) residence time of the terminal in the first network side node or the slice service area;

[0206] (6) residence time of the terminal in the cell of the slice service area;

[0207] (7) time when the slice is congested.

[0208] In this way, the second network side node can evaluate the slice processing suggestion generated by the second model according to the third information, and further optimize the second model according to the evaluation result to improve the performance of the second model.

[0209] In the embodiments of the present disclosure, the first network side node can also report to the second network side device when the slice is congested or the resource utilization is too high or too low. At this time, the second network side node can also receive the slice identifier whose slice resource utilization is higher than the first threshold and / or the slice identifier whose slice resource utilization is lower than the second threshold sent by the first network side node. In this way, the second network side device can input the above-mentioned slice identifier, the above-mentioned threshold and other information received into the second model to generate relevant slice processing suggestions.

[0210] As described above, in the embodiments of the present disclosure, the second network side node can send second request information to the first network side node, and the second request information is used to request the first network side node to send the third information after the terminal (e.g., the first terminal) switches to the first network side node. Specifically, the second request information can include the terminal identifier of the terminal (e.g., the first terminal). At this time, the first network side node measures or counts the actual slice information according to the second request information, and then sends the third information to the second network side node. The second network side node can evaluate the switching decision generated by the second model based on the third information, and then optimize the second model according to the evaluation result to improve the performance of the second model.

[0211] The above introduces various methods of the embodiments of the present disclosure. The following will further provide devices for implementing the above-mentioned methods.

[0212] Please refer to FIG. 5, the embodiments of the present disclosure also provide a first network side node, comprising:

[0213] The first sending module 501 is configured to send first information to a second network side node, and the first information comprises at least one of the following:

[0214] A slice service area;

[0215] A slice identifier in the slice service area;

[0216] A congested slice identifier;

[0217] A slice congestion probability;

[0218] A slice congestion reason;

[0219] A slice congestion time in the slice service area or the first network side node;

[0220] Resource state information of one or more slices in the first network side node;

[0221] Residence time of a terminal in the slice service area;

[0222] Residence time of the terminal in the first network side node and / or cell.

[0223] Through the above modules, the second network side node can obtain the first information requested by the second network side node, and then the second network side node can perform slice-related operations in advance based on the prediction information, thereby improving the flexibility of slice service deployment.

[0224] Optionally, the slice service area includes at least one of the following: a cell in the predicted slice service area; a newly added cell in the predicted slice service area; a removed cell in the predicted slice service area.

[0225] Optionally, the first network side node further includes:

[0226] The first receiving module is configured to receive first request information sent by the second network side node before sending the first information to the second network side node, where the first request information is used to request the first information of the first network side node.

[0227] Optionally, the content requested by the first request information includes at least one of the following: a terminal identifier; a slice identifier; a slice service area; a slice identifier in the slice service area; a congested slice identifier; a slice congestion probability; a slice congestion cause; a slice congestion time in the slice service area or the first network side node; resource state information of each slice in the first network side node; residence time of the terminal in the slice service area; residence time of the terminal in the first network side node and / or cell.

[0228] Optionally, the first network side node further includes:

[0229] The second receiving module is configured to receive second information, and the first information is obtained by prediction, where the second information includes at least one of the following: a measurement quantity reported by the terminal; trajectory information of the terminal, slice service information of a served terminal, number of terminals served by a slice, number of terminals served by a base station, and a slice service area.

[0230] Optionally, the first network side node further includes:

[0231] The second sending module is configured to send the third information to the second network side node, where the third information includes at least one of the following:

[0232] A slice identifier with high congestion or resource utilization rate;

[0233] A slice identifier with low resource utilization rate;

[0234] Resource utilization level or congestion degree of a slice at the first network side node;

[0235] a slice service area of the first network side node;

[0236] a residence time of the terminal in the first network side node or in the slice service area;

[0237] a residence time of the terminal in a cell of the slice service area;

[0238] a time when the slice is congested.

[0239] Optionally, the first network side node further comprises:

[0240] a third receiving module, configured to receive second request information sent by the second network side node, the second request information being used to request the third information.

[0241] The second sending module is further configured to send the third information after the terminal switches to the first network node.

[0242] Optionally, the first network side node further comprises:

[0243] a third sending module, configured to send, to the first network side node, a slice identifier of a slice whose resource utilization is higher than a first threshold, in a case where the resource utilization of the slice is higher than the first threshold; and / or,

[0244] send, to the first network side node, a slice identifier of a slice whose resource utilization is lower than a second threshold, in a case where the resource utilization of the slice is lower than the second threshold.

[0245] Optionally, the first information and the third information are carried in the same message or different messages and sent to the second network side node.

[0246] It should be noted that the device in this embodiment is a device corresponding to the method applied to the first network side node side, and the implementation manners in the above embodiments are all applicable to the embodiments of the device and can achieve the same technical effects. The above device provided by the embodiments of the present disclosure can implement all the method steps realized by the method embodiments and achieve the same technical effects. Therefore, the same parts and beneficial effects of the method embodiments will not be described in detail herein.

[0247] Please refer to FIG. 6, the embodiments of the present disclosure further provide a second network side node, comprising:

[0248] a first receiving module 601, configured to receive first information sent by a first network side node, the first information being information requested by the second network side node, and comprising at least one of the following:

[0249] a slice service area;

[0250] slice identification in the slice service area;

[0251] congestion slice identification;

[0252] slice congestion probability;

[0253] slice congestion cause;

[0254] slice congestion time in the slice service area or the first network side node;

[0255] resource status information of one or more slices in the first network side node;

[0256] residence time of the terminal in the slice service area;

[0257] residence time of the terminal in the first network side node and / or cell.

[0258] Through the above modules, the second network side node can obtain the first information requested by the second network side node, and the second network side node can perform slice-related operations in advance based on the prediction information, thereby improving the flexibility of slice service deployment.

[0259] Optionally, the slice service area includes at least one of the following: a cell in the predicted slice service area; a newly added cell in the predicted slice service area; a removed cell in the predicted slice service area.

[0260] Optionally, the second network node further includes:

[0261] The first sending module is configured to send first request information to the first network side node before receiving the first information, where the first request information is used to request the first information.

[0262] Optionally, the content requested by the first request information includes at least one of the following: a terminal identification; a slice identification; a slice service area; a slice identification in the slice service area; a congestion slice identification; a slice congestion probability; a slice congestion cause; a slice congestion time in the slice service area or the first network side node; resource status information of each slice in the first network side node; a residence time of the terminal in the slice service area; a residence time of the terminal in the first network side node and / or cell.

[0263] Optionally, the second network side node further includes:

[0264] The second receiving module is configured to receive third information sent by the first network side node, where the third information includes at least one of the following:

[0265] a slice identification with high congestion or resource utilization rate;

[0266] slice identifier with low resource utilization rate;

[0267] resource utilization level or congestion level of the slice at the first network side node;

[0268] slice service area of the first network side node;

[0269] residence time of the terminal in the first network side node or in the slice service area;

[0270] residence time of the terminal in a cell of the slice service area;

[0271] time when the slice is congested.

[0272] Optionally, the second network side node further comprises:

[0273] a third receiving module, configured to receive the slice identifier with the high resource utilization rate and / or the slice identifier with the low resource utilization rate sent by the first network side node.

[0274] Optionally, the second network side node further comprises:

[0275] a second sending module, configured to send second request information to the first network side node, the second request information being used to request the first network side node to send the third information after the terminal switches to the first network side node.

[0276] It should be noted that the device in this embodiment is the device corresponding to the method applied to the second network side node described above, and the implementation manners in the above embodiments are all applicable to the embodiment of the device and can achieve the same technical effects. The above device provided by the embodiments of the present disclosure can implement all the method steps realized by the method embodiments and achieve the same technical effects. Here, the same parts and beneficial effects in the method embodiments will not be described in detail.

[0277] The first network side node of another embodiment of the present disclosure, as shown in FIG. 7, comprises a transceiver 710, a processor 700, a memory 720, and a program or instruction stored on the memory 720 and executable on the processor 700; the processor 700 implements each process of the information transmission method embodiment of the first network side node when executing the program or instruction, and can achieve the same technical effects. To avoid repetition, this will not be described here.

[0278] The transceiver 710 is used to receive and send data under the control of the processor 700.

[0279] In FIG. 7, the bus architecture can include any number of interconnected buses and bridges, specifically, various circuitry of one or more processors represented by the processor 700 and memory represented by the memory 720 are linked together. The bus architecture can also link various other circuitry such as peripheral devices, voltage stabilizers and power management circuitry, which are well known in the art, and thus, further description thereof is not provided herein. The bus interface provides an interface. The transceiver 710 can be multiple elements, i.e., including a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium. The processor 700 is responsible for managing the bus architecture and general processing, and the memory 720 can store data used by the processor 700 in performing operations.

[0280] The second network side node of another embodiment of the present disclosure, as shown in FIG. 8, includes a transceiver 810, a processor 800, a memory 820, and a program or instruction stored on the memory 820 and executable on the processor 800; the processor 800 implements each process of the above-mentioned information transmission method embodiment of the second network side node side when executing the program or instruction, and can achieve the same technical effects, to avoid repetition, which will not be described here.

[0281] The transceiver 810 is configured to receive and send data under the control of the processor 800.

[0282] In FIG. 8, the bus architecture can include any number of interconnected buses and bridges, specifically, various circuitry of one or more processors represented by the processor 800 and memory represented by the memory 820 are linked together. The bus architecture can also link various other circuitry such as peripheral devices, voltage stabilizers and power management circuitry, which are well known in the art, and thus, further description thereof is not provided herein. The bus interface provides an interface. The transceiver 810 can be multiple elements, i.e., including a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium. The processor 800 is responsible for managing the bus architecture and general processing, and the memory 820 can store data used by the processor 800 in performing operations.

[0283] The present disclosure also provides a computer readable storage medium, which stores a computer program, the computer program is executed by a processor to implement each process of the above-mentioned information transmission method embodiment, and can achieve the same technical effects, to avoid repetition, which will not be described here. Wherein, the computer readable storage medium, such as read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.

[0284] The embodiments of the present disclosure further provide a computer program product comprising computer instructions, which, when executed by a processor, implement each process of the above information transmission method embodiments and can achieve the same technical effects. To avoid repetition, details are not described here.

[0285] It should be noted that in this document, the term "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that processes, methods, articles or apparatuses including a series of elements not only include those elements, but also include other elements not explicitly listed, or further include elements inherent to such processes, methods, articles or apparatuses. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article or apparatus including the element.

[0286] From the above description of the embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be realized by means of software and necessary general hardware platforms, of course, they can also be realized by hardware, but in many cases the former is a better embodiment. Based on such understanding, the technical solutions of the present disclosure can be embodied in the form of software products, and the computer software products are stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and include a plurality of instructions for making a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) execute the methods described in various embodiments of the present disclosure.

[0287] The embodiments of the present disclosure are described above in combination with the drawings, but the present disclosure is not limited to the above specific embodiments, and the above specific embodiments are only illustrative, not restrictive. Those skilled in the art can make many forms under the inspiration of the present disclosure without departing from the scope of the present disclosure and the scope of protection of the claims.

Claims

1. An information transmission method, applied to a first network-side node, comprising: Sending first information to the second network-side node, where the first information includes at least one of the following: Predicted slice service area; Predicted congested slice identifier; Predicted slice congestion probability; Cause of slice congestion; The predicted slice congestion time within the slice service area or the first network-side node; predicted resource status information of one or more slices in the first network-side node; The dwell time of the terminal in the slice service area; The residence time of the terminal in the first network-side node and / or cell.

2. The method according to claim 1, wherein The slice service area includes at least one of the following: cells within the predicted slice service area; newly added cells within the predicted slice service area; and cells removed from the predicted slice service area.

3. The method according to claim 1, wherein Before sending the first information to the second network-side node, the method further includes: Receive first request information sent by the second network side node, where the first request information is used to request first information of the first network side node.

4. The method according to claim 3, wherein: The content of the prediction requested by the first request information includes at least one of the following: terminal identification; slice identification; slice service area; congested slice identification; slice congestion probability; slice congestion cause; slice congestion time in the slice service area or the first network side node; resource status information of each slice in the first network side node; and the residence time of the terminal in the slice service area. The residence time of the terminal in the first network-side node and / or cell.

5. The method according to claim 1, further comprising: Receive the second information and predict the first information, wherein the second information includes at least one of the following: measurement quantity reported by the terminal; trajectory information of the terminal, slice service information of the service terminal, the number of terminals served by the slice, the number of terminals served by the base station, and the slice service area.

6. The method according to claim 1, further comprising: Send third information to the second network-side node, where the third information includes at least one of the following: Slice identifiers for congested or high resource utilization slices; Slice identification with low resource utilization; The resource utilization level or congestion degree of the slice at the first network-side node; The slice service area of ​​the first network-side node; The dwell time of the terminal in the slice service area; the residence time of the terminal in the first network-side node and / or cell; The time when the slice is congested.

7. The method according to claim 6, further comprising: receiving a second request message sent by the second network-side node, where the second request message is used to request the third information; After the terminal switches to the first network node, the third information is sent.

8. The method according to claim 6, further comprising at least one of the following: When the slice resource utilization rate is higher than the first threshold, sending a slice identifier of the slice resource utilization rate higher than the first threshold to the first network side node; When the slice resource utilization is lower than the second threshold, a slice identifier indicating that the slice resource utilization is lower than the second threshold is sent to the first network side node.

9. The method according to claim 6, wherein: The first information and the third information are carried in the same message or different messages and sent to the second network side node.

10. An information transmission method, applied to a second network-side node, the method comprising: Receive first information sent by the first network side node, where the first information is information requested by the second network side node, including at least one of the following: Predicted slice service area; Predicted congested slice identifier; Predicted slice congestion probability; Cause of slice congestion; The predicted slice congestion time within the slice service area or the first network-side node; predicted resource status information of one or more slices in the first network-side node; The dwell time of the terminal in the slice service area; The residence time of the terminal in the first network-side node and / or cell.

11. The method according to claim 10, wherein: The slice service area includes at least one of the following: cells within the predicted slice service area; newly added cells within the predicted slice service area; and cells removed from the predicted slice service area.

12. The method according to claim 10, wherein: Before receiving the first information, the method further includes: Send first request information to the first network side node, where the first request information is used to request the first information.

13. The method according to claim 12, wherein: The content of the prediction requested by the first request information includes at least one of the following: terminal identification; slice identification; slice service area; slice identification within the slice service area; congested slice identification; slice congestion probability; slice congestion cause; slice congestion time within the slice service area or the first network side node; resource status information of each slice within the first network side node; and the residence time of the terminal in the slice service area. The residence time of the terminal in the first network-side node and / or cell.

14. The method according to claim 10, further comprising: Receive third information sent by the first network-side node, where the third information includes at least one of the following: Slice identifiers for congested or high resource utilization slices; Slice identification with low resource utilization; The resource utilization level or congestion degree of the slice at the first network-side node; The slice service area of ​​the first network-side node; The dwell time of the terminal in the slice service area; the residence time of the terminal in the first network-side node and / or cell; The time when the slice is congested.

15. The method according to claim 14, further comprising: Sending second request information to the first network side node, where the second request information is used to request the first network side node to send the third information after the terminal switches to the first network side node.

16. The method according to claim 14, further comprising: Receive a slice identifier sent by the first network side node, indicating that the slice resource utilization is higher than a first threshold and / or a slice identifier, indicating that the slice resource utilization is lower than a second threshold.

17. A first network-side node, comprising: A first sending module is configured to send first information to the second network-side node, where the first information includes at least one of the following: Predicted slice service area; Predicted congested slice identifier; Predicted slice congestion probability; Cause of slice congestion; The predicted slice congestion time within the slice service area or the first network-side node; predicted resource status information of one or more slices in the first network-side node; The dwell time of the terminal in the slice service area; The residence time of the terminal in the first network-side node and / or cell.

18. A second network-side node, comprising: A first receiving module is configured to receive first information sent by a first network-side node, where the first information is information requested by the second network-side node and includes at least one of the following: Predicted slice service area; Predicted congested slice identifier; Predicted slice congestion probability; Cause of slice congestion; The predicted slice congestion time within the slice service area or the first network-side node; predicted resource status information of one or more slices in the first network-side node; The dwell time of the terminal in the slice service area; The residence time of the terminal in the first network-side node and / or cell.

19. A first network-side node, comprising: A transceiver, a processor, a memory, and a program or instruction stored in the memory and executable on the processor; wherein, when the processor executes the program or instruction, the steps of the method according to any one of claims 1 to 9 are implemented.

20. A second network-side node, comprising: A transceiver, a processor, a memory, and a program or instruction stored in the memory and executable on the processor; wherein, when the processor executes the program or instruction, the steps of the method according to any one of claims 10 to 16 are implemented.

21. A computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the computer program implements the steps of the method according to any one of claims 1 to 9, or implements the steps of the method according to any one of claims 10 to 16.

22. A computer program product comprising computer instructions, wherein when the computer instructions are executed by a processor, the steps of the method according to any one of claims 1 to 9 are implemented, or the steps of the method according to any one of claims 10 to 16 are implemented.

Images