CN112399433A

CN112399433A - MDT configuration method, base station and core network

Info

Publication number: CN112399433A
Application number: CN201910746280.3A
Authority: CN
Inventors: 彦楠; 刘爱娟
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2019-08-13
Filing date: 2019-08-13
Publication date: 2021-02-23
Anticipated expiration: 2039-08-13
Also published as: CN112399433B

Abstract

The embodiment of the invention provides an MDT configuration method, a base station and a core network, wherein the MDT configuration method comprises the following steps: when the base station determines that the terminal is in a multi-connection state, the base station sends multi-connection indication information of the terminal to a core network; the multi-connection indication information carries a multi-connection type, or carries a Radio Access Technology (RAT) corresponding to a Mobile Node (MN) and a service provider (SN) which are connected by a terminal in the multi-connection, or carries the RAT corresponding to the SN; and receiving first MDT configuration information of the MN and/or second MDT configuration information of the SN, which are sent by a core network, wherein the first MDT configuration information and/or the second MDT configuration information are configured for the core network according to multiple connection types or RATs respectively corresponding to the MN and/or the SN in multiple connections. The embodiment of the invention realizes that the core network can select the auxiliary nodes in the multi-connection to carry out the MDT configuration according to the actual situation, and avoids the problem that the core network can not carry out the MDT configuration on the auxiliary nodes in the prior art.

Description

MDT configuration method, base station and core network

Technical Field

The present invention relates to the field of communications technologies, and in particular, to an MDT configuration method, a base station, and a core network.

Background

Minimization of Drive Tests (MDT) is a technology for reporting relevant information of network optimization required by a network side through a terminal, thereby reducing traditional drive tests. The MDT measurement task of the terminal is issued by the network side to the terminal side, and currently includes the following two ways: management based MDT flow (managed based MDT) and signaling based MDT flow (signaling based MDT). Based on the managed MDT process, aiming at the terminals in a certain area range, the network element management node directly issues the MDT configuration to the base station; the signaling-based MDT process aims at the drive test configuration of a specified terminal, and can issue the MDT configuration based on the tracking process of the network.

In addition, in the existing signaling-based MDT procedure, the core network node issues MDT configuration only for one Radio Access Technology (Radio Access Technology), and the core network type of the terminal and the base station type are in a one-to-one matching relationship, which results in that after a multi/dual connection scenario is introduced, the core network can only configure MDT configuration information only belonging to a multi-connected primary node for the terminal, and cannot configure MDT configuration information for a multi-connected secondary node, so that the network side cannot collect MDT result information of the terminal for the secondary node and perform optimization according to the MDT result information of the secondary node.

Disclosure of Invention

Embodiments of the present invention provide an MDT configuration method, a base station, and a core network, so as to implement that the core network can select whether to perform MDT configuration for an auxiliary node in a multi-connection state according to an actual situation, thereby avoiding a problem that the core network cannot perform MDT configuration for the auxiliary node in the prior art.

In a first aspect, an embodiment of the present invention provides a method for configuring an MDT in a minimization of drive test, where the method for configuring an MDT includes:

when the base station determines that the terminal is in a multi-connection state, the base station sends multi-connection indication information of the terminal to a core network; the multi-connection indication information carries a multi-connection type, or carries Radio Access Technology (RAT) corresponding to a Master Node (MN) and an auxiliary node (SN) which are connected by a terminal in multi-connection, or carries RAT corresponding to the SN;

receiving first MDT configuration information of the MN and/or second MDT configuration information of the SN sent by the core network; and the first MDT configuration information and/or the second MDT configuration information configure the core network according to the multiple connection types or the RATs corresponding to the MNs and/or the SNs in the multiple connections respectively.

In a second aspect, an embodiment of the present invention provides a MDT configuration method for a minimization of drive test, where the MDT configuration method includes:

receiving multi-connection indication information sent by a base station; the multi-connection indication information carries a multi-connection type, or carries Radio Access Technology (RAT) corresponding to a Master Node (MN) and an auxiliary node (SN) which are connected by a terminal in multi-connection, or carries RAT corresponding to the SN;

and sending first MDT configuration information of the MN and/or second MDT configuration information of the SN to the base station according to the multi-connection type or the RAT respectively corresponding to the MN and/or the SN in the multi-connection.

In a third aspect, an embodiment of the present invention provides an MDT configuration apparatus for minimization of drive test, where the MDT configuration apparatus includes:

a first sending module, configured to send, to a core network, multi-connection indication information of a terminal when a base station determines that the terminal is in a multi-connection state; the multi-connection indication information carries a multi-connection type, or carries Radio Access Technology (RAT) corresponding to a Master Node (MN) and an auxiliary node (SN) which are connected by a terminal in multi-connection, or carries RAT corresponding to the SN;

a receiving module, configured to receive first MDT configuration information of the MN and/or second MDT configuration information of the SN sent by the core network; and the first MDT configuration information and/or the second MDT configuration information configure the core network according to the multiple connection types or the RATs corresponding to the MNs and/or the SNs in the multiple connections respectively.

In a fourth aspect, an embodiment of the present invention provides an MDT configuration apparatus for minimization of drive test, where the MDT configuration apparatus includes:

the first receiving module is used for receiving the multi-connection indication information sent by the base station; the multi-connection indication information carries a multi-connection type, or carries Radio Access Technology (RAT) corresponding to a Master Node (MN) and an auxiliary node (SN) which are connected by a terminal in multi-connection, or carries RAT corresponding to the SN;

and a sending module, configured to send, to the base station, first MDT configuration information of the MN and/or second MDT configuration information of the SN according to the multiple connection types or RATs respectively corresponding to the MN and/or the SN in the multiple connections.

In a fifth aspect, an embodiment of the present invention provides a base station, including a memory, a processor, and a program stored in the memory and executable on the processor, where the processor implements the steps of the MDT configuration method in the first aspect when executing the program.

In a sixth aspect, an embodiment of the present invention provides a core network, including a memory, a processor, and a program stored in the memory and executable on the processor, where the processor implements the steps of the MDT configuration method in the second aspect when executing the program.

An embodiment of the present invention provides a non-transitory computer readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps of the MDT configuration method.

The MDT configuration method, the base station and the core network provided by the embodiment of the invention send the multi-connection indication information of the terminal to the core network when the base station determines that the terminal is in the multi-connection state, wherein the multi-connection indication information carries a multi-connection type or a RAT corresponding to a MN and a SN connected to a terminal in the multi-connection, or carries the RAT corresponding to the SN, and receives the first MDT configuration information aiming at the MN and/or the second MDT configuration information of the SN sent by the core network according to the multi-connection indication information, so that the core network can realize the multi-connection type or the RAT type carried in the multi-connection indication information, relevant MDT configuration information is successfully configured for the MN and/or the SN according to actual conditions, and further, the problem that the core network cannot configure the MDT configuration of the SN for the terminal because the core network cannot know the multi-connection state and the multi-connection type of the terminal is solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention 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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

FIG. 1 is a flowchart illustrating steps of a method for configuring an MDT according to an embodiment of the present invention;

fig. 2 is a schematic diagram illustrating a process of entering a multi-connection state by a terminal according to an embodiment of the present invention;

fig. 3 is a schematic diagram illustrating a process of receiving second MDT configuration information by an MN according to an embodiment of the present invention;

FIG. 4 is a second flowchart illustrating steps of a MDT configuration method according to an embodiment of the present invention;

fig. 5 is a block diagram of an MDT configuration apparatus according to an embodiment of the present invention;

fig. 6 is a second block diagram of an MDT configuration apparatus according to an embodiment of the present invention;

FIG. 7 is a diagram illustrating a base station according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a core network in an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In a multi-connection architecture, a terminal may be connected to a Master Node (MN) and one to multiple Secondary Nodes (SNs) and may interact with signaling and/or data with these network nodes. The MN and the SN may be a Long Term Evolution (LTE) base station, an enhanced Long Term Evolution (LTE) or a New Radio interface (New Radio) node, and it should be noted that the MN and the SN are not limited to the above type of node. In addition, when a terminal is connected with one MN and one SN, it may be referred to as Dual Connection (DC). For example, when the terminal is in a connected state, it may be connected to one or more network nodes, and the network nodes may be in one or more RATs. For example, when the MN is an LTE node and the SN is an NR node, it is a dual connection with 5G NR (EN-DC) for a 4G radio access network; when the MN is an NR node and the SN is an (e) LTE node, the MN is in double connection with a 4G radio access network (NE-DC); when both MN and SN are NR nodes, the connection is double connection of 5G NR and 5G NR (NR-NR).

Although the multi-connection architecture can improve the data transmission efficiency of the terminal and the working efficiency of the core network, in the existing MDT flow based on signaling, the core network node issues the MDT configuration only for one RAT, and the core network type of the terminal and the base station type are in a one-to-one matching relationship. However, after a multi/dual connection scenario is introduced, the core network cannot know whether the terminal is in a multi-connection state, and at this time, if the MN and the SN do not belong to the same RAT, the core network only knows the RAT attribute of the MN of the terminal, and cannot know the RAT attribute of the SN, which results in that the core network can only configure MDT configuration information only belonging to the MN for the terminal, and cannot perform MDT configuration for the SN, and further results in that a network side cannot collect MDT result information of the terminal for the SN to perform optimization.

In order to solve the above problem that the core network cannot perform MDT configuration for the multi-connection state of the terminal because the core network side does not know whether the terminal is in the multi-connection state, embodiments of the present invention provide the following ways to solve the above problem.

As shown in fig. 1, which is one of the step flow charts of the MDT configuration method provided in the embodiment of the present invention, the MDT configuration method includes the following steps:

step 101: and when the base station determines that the terminal is in the multi-connection state, the base station sends the multi-connection indication information of the terminal to the core network.

In this step, specifically, when the base station determines that the terminal is in the multi-connection state, the multi-connection indication information of the terminal may be sent to the core network.

Specifically, before the UE enters the multi-connection state, the UE is connected to only one base station, and the UE is connected to the control plane of the core network side through the base station; after the UE enters the multi-connection state, the terminal may connect a primary node (MN) and at least one Secondary Node (SN), while the UE maintains a control plane connection with a core network-side control plane node through the MN. That is, a base station that is connected to a UE before entering the multi-connection state becomes an MN after the UE enters the multi-connection state.

Specifically, the multi-connection indication information carries a multi-connection type, or carries a MN connected to the terminal in the multi-connection and a radio access technology RAT corresponding to the SN, or carries a RAT corresponding to the SN.

Specifically, the multi-connection indication information carries the multi-connection types, so that the core network can perform corresponding MDT configuration for the MN and/or the SN in the multi-connection state according to the multi-connection types.

The description is given here by way of example of a double connection. When the number of the SNs is 1, the multi-connection is a double connection. At this time, the multi-connection type may be EN-DC dual connection, that is, MN is an LTE node and SN is an NR node; it can also be NE-DC dual connectivity, i.e. MN is NR node and SN is (e) LTE node; it can also be NR-NR dual connection, i.e. both MN and SN are NR nodes. Therefore, when the base station sends the multi-connection indication information carrying the multi-connection types to the core network, the core network can acquire the node attributes of the MN and/or the SN according to the multi-connection types, so that the corresponding MDT configuration is performed on the MN and/or the SN according to the actual situation based on the MN type and/or the SN type of the terminal.

It is to be understood that the specific type of the multi-connection type is not specifically limited herein.

In addition, specifically, when the RATs of the MN and the SN or the RATs of the SN are acquired, the core network can perform MDT configuration for the corresponding MN and/or SN according to the RATs, so that the multi-connection indication information may also carry the RATs corresponding to the MN and the SN or the RATs corresponding to the SN, so that the core network can perform MDT configuration for the MN and/or the SN according to the RATs corresponding to the MN and/or the SN according to actual conditions, thereby avoiding a problem that the network side cannot perform MDT configuration for the SN due to incapability of acquiring multi-connection states and types when the terminal is in a multi-connection state.

Step 102: and receiving first MDT configuration information of the MN and/or second MDT configuration information of the SN sent by the core network.

In this step, specifically, the first MDT configuration information and/or the second MDT configuration information configure, by the core network, RATs respectively corresponding to the multi-connection types or the MNs and/or SNs in the multi-connection.

Specifically, after receiving the multi-connection indication information sent by the base station, the core network may send, to the base station, first MDT configuration information for the MN and/or second MDT configuration information for the SN according to the multi-connection type or RATs respectively corresponding to the MN and/or the SN in the multi-connection. At this time, the base station (MN) receives the first MDT configuration information and/or the second MDT configuration information of the SN sent by the core network, so that the core network can configure the MDT configuration information belonging to the MN and/or the SN according to an actual situation, and the problem that the network side cannot collect the MDT result information of the terminal for the SN due to the fact that MDT configuration cannot be performed for the SN in the prior art is solved.

Therefore, when the base station determines that the terminal is in the multi-connection state, the base station sends the multi-connection indication information to the core network, so that the core network can know the node connected by the terminal in the multi-connection or the RAT corresponding to the node, and the core network can smoothly configure the related MDT for the MN and/or the SN of the terminal, thereby avoiding the problem that the MDT configuration cannot be performed for the SN due to the fact that the multi-connection state and the type cannot be known in the prior art.

Furthermore, when the base station determines that the terminal is in the multi-connection state and sends the multi-connection indication information of the terminal to the core network, the following two ways may be included:

firstly, when the base station determines that the terminal enters a multi-connection state, the base station sends the multi-connection indication information to the core network.

In this case, specifically, the base station may send the multi-connection indication information to the core network when determining that the terminal enters the multi-connection state.

Specifically, when the base station determines that the terminal enters the multi-connection state, it may be determined that the terminal enters the multi-connection state when the base station receives a radio resource control RRC reconfiguration complete message of the SN sent by the terminal; or, when the base station receives an RRC reconfiguration complete message of a SN sent by a terminal and sends the RRC reconfiguration complete message to the SN, it is determined that the terminal enters a multi-connection state.

The process of the terminal entering the multi-connection state will be described with reference to fig. 2. Referring to fig. 2, a dual connection is illustrated. A base station (serving as a MN in multi-connection) may send an auxiliary node addition request to a candidate SN, where the auxiliary node addition request carries a measurement result of a terminal for a cell under the SN; then the SN replies the auxiliary node to the MN and adds request confirmation information, wherein the SN carries SN configuration information given by the SN according to measurement configuration and SN self conditions (such as cell load and the like); then MN sends radio resource control (RRC for short) reconfiguration information to terminal, wherein SN configuration information of SN is carried; then the terminal feeds back RRC reconfiguration complete information to the MN after applying the SN configuration information, and at the moment, the MN feeds back the RRC reconfiguration complete information of the SN to the SN after receiving the RRC reconfiguration complete information. So far, the execution of the RRC signaling procedure for dual connectivity is completed. Certainly, the subsequent terminal may initiate random access to the SN, at this time, after the random access between the terminal and the SN is successful, the terminal successfully enters a multi-connection state, and the MN may send SN state transmission and data forwarding to the SN.

For the process that the terminal enters the multi-connection state, in this embodiment, the base station may determine that the terminal enters the multi-connection state when receiving an RRC reconfiguration complete message of the SN sent by the terminal, or when sending the RRC reconfiguration complete message to the SN, at this time, the base station may send the multi-connection indication information to the core network, and then the core network sends the first MDT configuration information and/or the second MDT configuration information to the base station.

Secondly, when the base station determines that the terminal is in a multi-connection state and receives the first MDT configuration information of the MN sent by the core network, the base station sends the multi-connection indication information to the core network.

In this case, based on many scenarios, it is not necessary to start the MDT for the terminal, and at this time, the core network does not need to know whether the terminal is in multi-connection, so when the terminal enters a multi-connection state, the base station does not report the multi-connection indication information of the terminal to the core network first, but when the core network issues the first MDT configuration information to the terminal, the base station sends the multi-connection indication information to the core network, so that the core network can additionally send the second MDT configuration information for the SN according to the multi-connection indication information when the core network needs to configure the MDT for the SN, thereby realizing sending the multi-connection indication information to the core network according to an actual situation, and saving signaling overhead.

The above process is explained below with reference to fig. 3. Referring to fig. 3, when the terminal is already in multi-connection and the core network issues the first MDT configuration information to the MN (the base station before multi-connection), the base station (MN) sends multi-connection indication information to the core network, and at this time, the core network may send the second MDT configuration information for the SN to the MN. Of course, it should be noted herein that after the MN receives the first MDT configuration information sent by the core network, the first MDT configuration information may be first sent to the terminal, so that the terminal can perform MDT measurement according to the first MDT configuration information.

Therefore, the base station determines that the terminal enters the multi-connection state, or the base station determines that the terminal is in the multi-connection state and receives the first MDT configuration information sent by the core network, and then sends the multi-connection indication information to the core network, so that the base station can inform the core network of the multi-connection state of the terminal, the core network can further configure the MDT of the SN for the terminal according to the multi-connection type or the RAT of the SN and according to the actual situation, and the terminal can measure the MDT of the SN.

In addition, it should be noted herein that, when the multi-connection indication information of the terminal is sent to the core network, the multi-connection indication information may be sent to the core network through preset modification indication information or preset signaling.

Specifically, the base station may set the preset modification indication information or the preset signaling for different base station types (e.g., LTE, NR, etc.) and core network types (e.g., 4G, 5G, etc.). For example, the preset modification indication information may be evolved radio access bearer (E-RAB for short) modification indication information or PDU SESSION resource modification indication information. In addition, the preset signaling may be a newly added signaling between the base station and the core network, that is, the multi-connection indication information is transmitted through the newly added signaling.

In addition, it should be noted that, when the multi-connection indication information is sent by the base station when it is determined that the terminal enters the multi-connection state, this embodiment also needs to send the multi-connection disconnection indication information to the core network when it is detected that the terminal disconnects from the multi-connection state. Therefore, the core network can delete the stored multi-connection indication information according to the multi-connection disconnection indication information and subsequently send the MDT configuration of the RAT where the MN is located, namely the first MDT configuration information to the base station.

In addition, further, after receiving the first MDT configuration information of the MN and/or the second MDT configuration information of the SN sent by the core network, the base station may further perform processing on the received first MDT configuration information and/or second MDT configuration information.

Specifically, the core network may select to send the first MDT configuration information and/or the second MDT configuration information to the base station according to an actual situation. The following describes a process of processing the received first MDT configuration information and/or second MDT configuration information:

first, when only the first MDT configuration information is received, the first MDT configuration information is sent to the terminal, that is, MDT measurement is started only for MN.

Secondly, when only the second MDT configuration information is received, the second MDT configuration information is sent to the SN, and the SN sends the second MDT configuration information to the terminal, or directly sends the second MDT configuration information to the terminal.

Specifically, the base station may determine a processing manner of the second MDT configuration information by distinguishing different scenarios. For example, when measuring for immediate MDT (immediate MDT) or L2, the second MDT configuration information of the SN may be sent to the SN, applied by the SN, sent to the terminal, and then the terminal performs MDT measurement for the SN; for another example, when the MDT (logged MDT) is recorded, the second MDT configuration information of the SN may be directly sent to the terminal, and the terminal performs subsequent MDT measurement.

Thirdly, when the first MDT configuration information and the second MDT configuration information are received, directly sending the first MDT configuration information and the second MDT configuration information to the terminal; or sending the first MDT configuration information to the terminal, sending the second MDT configuration information to the SN, and sending the second MDT configuration information to the terminal by the SN; or performing information deduplication processing on the first MDT configuration information and the second MDT configuration information, and sending the MDT configuration information subjected to the information deduplication processing to the terminal.

Specifically, when the base station receives the first MDT configuration information and the second MDT configuration information, it may also distinguish different scenarios to determine the processing manner of the first MDT configuration information and the second MDT configuration information.

For example, when measuring for the immediate MDT or L2, the first MDT configuration information may be sent to the terminal, the second MDT configuration information may be sent to the SN, and the SN sends the second MDT configuration information to the terminal, that is, the MN and the SN apply their respective MDT configuration information;

for another example, when the MDT is recorded, the first MDT configuration information and the second MDT configuration information may be directly sent to the terminal, and the terminal performs the MDT measurement of the RAT where the MN is located according to the first MDT configuration information, and performs the MDT measurement of the RAT where the SN is located according to the second MDT configuration information;

for another example, when the MDT is recorded, the first MDT configuration information and the second MDT configuration information may be subjected to information deduplication, and the MDT configuration information subjected to the information deduplication processing is sent to the terminal, and the terminal performs MDT measurement according to the MDT configuration information subjected to the deduplication processing. The information deduplication processing may be described here, that is, assuming that the first MDT configuration information is to measure four frequency points, i.e., a, b, c, and d, in 4G, and the second MDT configuration information is to measure four frequency points, i.e., b, c, d, and e, in 5G, when the first MDT configuration information and the second MDT configuration information are to be deduplicated, only the b, c, and d frequency points repeated in the first MDT configuration information or the second MDT configuration information may be reserved, that is, the finally obtained information deduplicated MDT configuration information is to measure the frequency points a, b, c, d, and e, so that a problem that signaling overhead is increased when two pieces of MDT configuration information carry the same information is avoided.

Fourthly, when the second MDT configuration information is received after the first MDT configuration information is received and sent to the terminal, the second MDT configuration information is sent to the SN, and the SN sends the second MDT configuration information to the terminal; or directly sending the second MDT configuration information to the terminal.

Specifically, after the base station receives the first MDT configuration information first and has sent the first MDT configuration information to the terminal, when the base station receives the second MDT configuration information subsequently, the base station may directly process the received second MDT configuration information. At this time, the base station may determine a processing manner of the second MDT configuration information by distinguishing different scenarios. For example, when measuring for the immediate MDT or L2, the second MDT configuration information of the SN may be sent to the SN, the SN applies the second MDT configuration information, the second MDT configuration information is sent to the terminal, and then the terminal performs MDT measurement for the SN; for another example, when the MDT is recorded, the second MDT configuration information of the SN may be directly sent to the terminal, and the terminal performs subsequent MDT measurement.

Fifthly, when the second MDT configuration information is received after the first MDT configuration information is received and the first MDT configuration information is not sent to the terminal, the first MDT configuration information and the second MDT configuration information are directly sent to the terminal; or performing information deduplication processing on the first MDT configuration information and the second MDT configuration information, and sending the MDT configuration information subjected to the information deduplication processing to the terminal.

Specifically, when the base station receives the first MDT configuration information and does not yet send the first MDT configuration information to the terminal, the base station may process the first MDT configuration information and the second MDT configuration information at the same time.

For example, the first MDT configuration information and the second MDT configuration information may be directly sent to the terminal, and the terminal performs MDT measurement of the RAT in which the MN is located according to the first MDT configuration information, and performs MDT measurement of the RAT in which the SN is located according to the second MDT configuration information; or, performing information deduplication on the first MDT configuration information and the second MDT configuration information, sending the MDT configuration information subjected to the information deduplication to the terminal, and executing the MDT measurement by the terminal according to the MDT configuration information subjected to the deduplication. Of course the above processing may be directed to logging MDT.

It should be noted that, of course, when the MN and the SN of the terminal belong to different RATs, Information Elements (IEs) and signaling formats used when the core network issues the MDT configuration to the MN and the SN may be different, and are not limited in this embodiment.

Therefore, the base station distinguishes and processes the received first MDT configuration information and/or the second MDT configuration information according to different situations, and MDT measurement of the terminal on the MN and/or the SN is realized.

In this embodiment, when the base station detects that the terminal is in the multi-connection state, the multi-connection indication information of the terminal is sent to the core network, where the multi-connection indication information carries the multiple connection types or RATs of MN and SN in the multi-connection, or RATs of SN, and receives the first MDT configuration information for the MN and/or the second MDT configuration information for the SN sent by the core network according to the multi-connection indication information, so that the core network can smoothly configure the relevant MDT configuration information for the MN and/or the SN according to the multiple connection types or RATs carried in the multi-connection indication information, and further solve the problem that the core network cannot configure the MDT configuration for the SN because the core network cannot know the multi-connection state and the multiple connection types of the terminal.

In addition, as shown in fig. 4, a second step flow chart of the MDT configuration method in the embodiment of the present invention is shown, and the MDT configuration method includes the following steps:

step 401: and receiving the multi-connection indication information sent by the base station.

In this step, specifically, the core network receives the multi-connection indication information sent by the base station.

The multi-connection indication information carries a multi-connection type, or carries a Radio Access Technology (RAT) corresponding to a Master Node (MN) and an auxiliary node (SN) which are connected by a terminal in the multi-connection, or carries an RAT corresponding to the SN.

Specifically, when the multi-connection indication information is received by the core network and the multi-connection type is carried in the multi-connection indication information, the MN type and the SN type may be obtained according to the multi-connection type, so that based on the MN type and the SN type, the MN and/or the SN in the multi-connection state are selected to perform corresponding MDT configuration according to actual conditions. For a detailed description of the multiple connection types, reference may be made to the above-described embodiments on the base station side, which are not specifically set forth herein.

In addition, specifically, when the multi-connection indication information carries RATs of MN and SN or RATs of SN, the core network can perform MDT configuration for the corresponding MN and/or SN according to the RATs based on actual conditions, thereby avoiding a problem that when the terminal is in dual connection, the network side cannot acquire a multi-connection state and a multi-connection type of the terminal, and further cannot perform MDT configuration for SN.

In addition, it should be noted that the core network may further receive multiple connection disconnection indication information sent by the base station, delete the multiple connection indication information according to the multiple connection disconnection indication information, and stop sending the second MDT configuration information to the base station. That is, when the core network receives the multi-connection disconnection indication information, the core network subsequently sends the MDT configuration of the RAT where the MN is located, that is, the first MDT configuration information, to the base station, thereby avoiding transmission of unnecessary signaling and saving signaling overhead.

Step 402: and sending the first MDT configuration information of the MN and/or the second MDT configuration information of the SN to the base station according to the multi-connection type or the RAT respectively corresponding to the MN and/or the SN in the multi-connection.

In this step, specifically, when receiving the multi-connection indication information, the core network may send, to the base station, the first MDT configuration information of the MN and/or the second MDT configuration information of the SN according to the multi-connection type or the RAT corresponding to the MN and/or the SN in the multi-connection, respectively.

Specifically, when the core network sends the first MDT configuration information of the MN and/or the second MDT configuration information of the SN to the base station according to the multiple connection types or RATs respectively corresponding to the MN and/or the SN in the multiple connections, the core network may send the first MDT configuration information of the MN and/or the second MDT configuration information of the SN according to the following two scenarios:

one is as follows: and when the multi-connection indication information is received when the first MDT configuration information is not sent to the base station, sending the first MDT configuration information and/or the second MDT configuration information to the base station.

In this scenario, when the core network receives the multi-connection indication information sent by the base station without sending the first MDT configuration information for the MN to the base station, the core network may select to send the first MDT configuration information for the MN and/or the second MDT configuration information for the SN to the base station according to an actual situation. Of course, the real-time property of the core network for sending the MDT configuration information is not limited, that is, the core network may select when to send the first MDT configuration information and/or the second MDT configuration information to the base station according to the actual situation.

In addition, it should be noted herein that the core network may also choose not to send any MDT configuration information to the base station according to an actual situation, where the specific situation when the core network sends the MDT configuration information is not specifically limited herein, and certainly this embodiment limits the core network to send the first MDT configuration information and/or the second MDT configuration information to the base station.

The second step is as follows: and when the multi-connection indication information is received after the first MDT configuration information is sent to the base station, sending the second MDT configuration information to the base station.

In this scenario, since the core network has already sent the first MDT configuration information to the base station, when receiving the multi-connection indication information, the core network may reissue the second MDT configuration information for the SN to the base station according to the multi-connection type or RAT in the multi-connection indication information based on the actual situation.

Of course, the real-time property of the core network for sending the MDT configuration information is not limited, that is, the core network may select when to send the second MDT configuration information to the base station according to the actual situation.

In addition, it should be noted here that the core network may also choose not to send the second MDT configuration information to the base station according to an actual situation, where a specific situation when the core network sends the second MDT configuration information is not specifically limited herein, and of course, this embodiment limits the core network to send the second MDT configuration information to the base station.

In this way, in this embodiment, by receiving the multi-connection indication information sent by the base station, and sending the first MDT configuration information and/or the second MDT configuration information to the base station according to the multi-connection type or RAT in the multi-connection indication information, it is achieved that the network side can select whether to perform MDT configuration for the SN according to the actual situation, and the problem that the network side cannot perform MDT configuration for the SN due to being unable to know the multi-connection state and the multi-connection type of the terminal in the prior art is avoided.

In addition, as shown in fig. 5, the MDT configuration apparatus in the embodiment of the present invention is a block diagram of an MDT configuration apparatus, where the MDT configuration apparatus includes:

a first sending module 501, configured to send, when the base station determines that the terminal is in a multi-connection state, multi-connection indication information of the terminal to a core network; the multi-connection indication information carries a multi-connection type, or carries Radio Access Technology (RAT) corresponding to a Master Node (MN) and an auxiliary node (SN) which are connected by a terminal in the multi-connection, or carries RAT corresponding to the SN;

a receiving module 502, configured to receive first MDT configuration information of the MN and/or second MDT configuration information of the SN sent by the core network; and the first MDT configuration information and/or the second MDT configuration information configure the core network according to the multiple connection types or the RATs corresponding to the MNs and/or the SNs in the multiple connections respectively.

Optionally, the first sending module 501 includes:

a first sending unit, configured to send the multi-connection indication information to the core network when the base station determines that the terminal enters a multi-connection state; alternatively, the first and second electrodes may be,

and the second sending unit is used for sending the multi-connection indication information to the core network when the base station determines that the terminal is in a multi-connection state and receives the first MDT configuration information of the MN sent by the core network.

Optionally, the first sending unit is further configured to determine that the terminal enters a multi-connection state when the base station receives a radio resource control RRC reconfiguration complete message of the SN sent by the terminal; or, when the base station receives an RRC reconfiguration complete message of a SN sent by a terminal and sends the RRC reconfiguration complete message to the SN, it is determined that the terminal enters a multi-connection state.

Optionally, the first sending module 501 is further configured to send the multi-connection indication information to the core network through preset modification indication information or preset signaling.

Optionally, the method further comprises:

a second sending module, configured to send the first MDT configuration information to the terminal when only the first MDT configuration information is received;

a third sending module, configured to send the second MDT configuration information to the SN when only the second MDT configuration information is received, where the SN sends the second MDT configuration information to the terminal, or directly sends the second MDT configuration information to the terminal;

a fourth sending module, configured to directly send the first MDT configuration information and the second MDT configuration information to the terminal when the first MDT configuration information and the second MDT configuration information are received; or sending the first MDT configuration information to the terminal, sending the second MDT configuration information to the SN, and sending the second MDT configuration information to the terminal by the SN; or performing information deduplication processing on the first MDT configuration information and the second MDT configuration information, and sending the MDT configuration information subjected to the information deduplication processing to the terminal;

a fifth sending module, configured to send the second MDT configuration information to the SN when the second MDT configuration information is received after the first MDT configuration information is received and sent to the terminal, and send the second MDT configuration information to the terminal by the SN; or directly sending the second MDT configuration information to the terminal;

a sixth sending module, configured to, when the second MDT configuration information is received after the first MDT configuration information is received and the first MDT configuration information is not sent to the terminal, directly send the first MDT configuration information and the second MDT configuration information to the terminal; or performing information deduplication processing on the first MDT configuration information and the second MDT configuration information, and sending the MDT configuration information subjected to the information deduplication processing to the terminal.

Optionally, the method further comprises:

a seventh sending module, configured to send, when it is detected that the terminal disconnects from multiple connections, multiple connection disconnection indication information to the core network.

It should be noted that the apparatus in this embodiment can implement all the method steps of the base station side method embodiment and can achieve the same technical effect, and the description of the same parts in this embodiment and the base station side method embodiment is omitted here.

In the MDT configuration apparatus provided in this embodiment, when detecting that the terminal is in the multi-connection state, the first sending module sends the multi-connection indication information to the core network, where the multi-connection indication information carries RATs of the multi-connection type or MN and SN in the multi-connection, or RATs of the SN, and the receiving module receives the first MDT configuration information for the MN and/or the second MDT configuration information for the SN sent by the core network according to the multi-connection indication information, so that the core network can smoothly configure the relevant MDT configuration information for the MN and/or the SN according to the multi-connection type or RAT type carried in the multi-connection indication information, and further solve the problem that the core network cannot configure the MDT configuration for the SN because the core network cannot know the multi-connection state and the multi-connection type of the terminal.

In addition, as shown in fig. 6, which is a second block diagram of the MDT configuration apparatus in the embodiment of the present invention, the MDT configuration apparatus includes:

a first receiving module 601, configured to receive multiple connection indication information sent by a base station; the multi-connection indication information carries a multi-connection type, or carries Radio Access Technology (RAT) corresponding to a Master Node (MN) and an auxiliary node (SN) which are connected by a terminal in the multi-connection, or carries RAT corresponding to the SN;

a sending module 602, configured to send, to the base station, first MDT configuration information of a MN and/or second MDT configuration information of a SN according to the multiple connection types or RATs respectively corresponding to the MN and/or the SN in the multiple connections.

Optionally, the sending module 602 includes:

a first sending unit, configured to send the first MDT configuration information and/or the second MDT configuration information to the base station when the multi-connection indication information is received when the first MDT configuration information is not sent to the base station;

a second sending unit, configured to send the second MDT configuration information to the base station when the multi-connection indication information is received after the first MDT configuration information is sent to the base station.

Optionally, the method further comprises:

a second receiving module, configured to receive multiple connection disconnection indication information sent by the base station;

and the deleting module is used for deleting the multi-connection indication information according to the multi-connection disconnection indication information and stopping sending the second MDT configuration information to the base station.

It should be noted that the apparatus in this embodiment can implement all the method steps of the core network side method embodiment and can achieve the same technical effect, and the description of the same parts in this embodiment and the core network side method embodiment is not repeated here.

The MDT configuration apparatus provided in this embodiment receives, by the first receiving module, the multi-connection indication information sent by the base station, and sends, by the sending module, the first MDT configuration information of the MN and/or the second MDT configuration information of the SN to the base station according to the multi-connection type or RAT type in the multi-connection indication information, so that whether the network side performs MDT configuration for the SN according to an actual situation is selected, and a problem that the network side cannot perform MDT configuration for the SN because the network side cannot know the multi-connection state and the multi-connection type of the terminal in the prior art is avoided.

In addition, as shown in fig. 7, an entity structure diagram of a base station provided in the embodiment of the present invention is shown, where the base station may include: a processor (processor)710, a communication Interface (Communications Interface)720, a memory (memory)730, and a communication bus 740, wherein the processor 710, the communication Interface 720, and the memory 730 communicate with each other via the communication bus 740. The processor 710 may invoke a computer program stored on the memory 730 and executable on the processor 710 to perform the methods provided by the embodiments described above, including, for example:

when the base station determines that the terminal is in a multi-connection state, the base station sends multi-connection indication information of the terminal to a core network; the multi-connection indication information carries a multi-connection type, or carries Radio Access Technology (RAT) corresponding to a Master Node (MN) and an auxiliary node (SN) which are connected by a terminal in the multi-connection, or carries RAT corresponding to the SN; receiving first MDT configuration information of the MN and/or second MDT configuration information of the SN sent by the core network; and the first MDT configuration information and/or the second MDT configuration information configure the core network according to the multiple connection types or the RATs corresponding to the MNs and/or the SNs in the multiple connections respectively.

Optionally, when the base station determines that the terminal is in the multi-connection state, the sending, to the core network, multi-connection indication information of the terminal includes: when the base station determines that the terminal enters a multi-connection state, the base station sends the multi-connection indication information to the core network; or, when the base station determines that the terminal is in a multi-connection state and receives the first MDT configuration information of the MN sent by the core network, the base station sends the multi-connection indication information to the core network.

Optionally, the determining, by the base station, that the terminal enters the multi-connection state includes: when the base station receives a Radio Resource Control (RRC) reconfiguration completion message of a SN (service number) sent by a terminal, determining that the terminal enters a multi-connection state; or, when the base station receives an RRC reconfiguration complete message of a SN sent by a terminal and sends the RRC reconfiguration complete message to the SN, it is determined that the terminal enters a multi-connection state.

Optionally, the sending the multi-connection indication information of the terminal to the core network includes: and sending the multi-connection indication information to the core network through preset modification indication information or preset signaling.

Optionally, after receiving the first MDT configuration information of the MN and/or the second MDT configuration information of the SN sent by the core network, the processor further implements the following steps when executing the program: when only the first MDT configuration information is received, transmitting the first MDT configuration information to the terminal; when only the second MDT configuration information is received, sending the second MDT configuration information to the SN, and sending the second MDT configuration information to the terminal by the SN or directly sending the second MDT configuration information to the terminal; when the first MDT configuration information and the second MDT configuration information are received, directly sending the first MDT configuration information and the second MDT configuration information to the terminal; or sending the first MDT configuration information to the terminal, sending the second MDT configuration information to the SN, and sending the second MDT configuration information to the terminal by the SN; or performing information deduplication processing on the first MDT configuration information and the second MDT configuration information, and sending the MDT configuration information subjected to the information deduplication processing to the terminal; when receiving the second MDT configuration information after receiving the first MDT configuration information and sending the first MDT configuration information to the terminal, sending the second MDT configuration information to the SN, and sending the second MDT configuration information to the terminal by the SN; or directly sending the second MDT configuration information to the terminal; when the second MDT configuration information is received after the first MDT configuration information is received and the first MDT configuration information is not sent to the terminal, directly sending the first MDT configuration information and the second MDT configuration information to the terminal; or performing information deduplication processing on the first MDT configuration information and the second MDT configuration information, and sending the MDT configuration information subjected to the information deduplication processing to the terminal.

Optionally, when the multi-connection indication information is sent by the base station when it is determined that the terminal enters the multi-connection state, the processor further implements the following steps when executing the program: and when detecting that the terminal is disconnected from the multi-connection, sending multi-connection disconnection indication information to the core network.

It should be noted that, the base station in this embodiment can implement all the method steps of the base station side method embodiment and can achieve the same technical effect, and the description of the same parts in this embodiment and the base station side method embodiment is not repeated here.

In addition, the logic instructions in the memory 730 can be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

As shown in fig. 8, an entity structure schematic diagram of a core network provided in the embodiment of the present invention is shown, where the core network may include: a processor (processor)810, a communication Interface 820, a memory 830 and a communication bus 840, wherein the processor 810, the communication Interface 820 and the memory 830 communicate with each other via the communication bus 840. The processor 810 may invoke a computer program stored on the memory 830 and executable on the processor 810 to perform the methods provided by the various embodiments described above, including, for example: receiving multi-connection indication information sent by a base station; the multi-connection indication information carries a multi-connection type, or carries Radio Access Technology (RAT) corresponding to a Master Node (MN) and an auxiliary node (SN) which are connected by a terminal in the multi-connection, or carries RAT corresponding to the SN; and sending first MDT configuration information of the MN and/or second MDT configuration information of the SN to the base station according to the multi-connection type or the RAT respectively corresponding to the MN and/or the SN in the multi-connection.

Optionally, the sending, to the base station, the first MDT configuration information of the MN and/or the second MDT configuration information of the SN includes: when the first MDT configuration information is not sent to the base station, the multi-connection indication information is received, and the first MDT configuration information and/or the second MDT configuration information are/is sent to the base station; and when the multi-connection indication information is received after the first MDT configuration information is sent to the base station, sending the second MDT configuration information to the base station.

Optionally, the processor executes the program to further implement the following steps: receiving multi-connection disconnection indication information sent by the base station; and deleting the multi-connection indication information according to the multi-connection disconnection indication information, and stopping sending the second MDT configuration information to the base station.

It should be noted that the core network in this embodiment can implement all the method steps of the core network side method embodiment and can achieve the same technical effect, and the description of the same parts in this embodiment and the core network side method embodiment is not repeated here.

In addition, the logic instructions in the memory 830 may be implemented in software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

Embodiments of the present invention further provide a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program is implemented to perform the method provided in the foregoing embodiments when executed by a processor, and the method includes: when the base station determines that the terminal is in a multi-connection state, the base station sends multi-connection indication information of the terminal to a core network; the multi-connection indication information carries a multi-connection type, or carries Radio Access Technology (RAT) corresponding to a Master Node (MN) and an auxiliary node (SN) which are connected by a terminal in the multi-connection, or carries RAT corresponding to the SN; receiving first MDT configuration information of the MN and/or second MDT configuration information of the SN sent by the core network; and the first MDT configuration information and/or the second MDT configuration information configure the core network according to the multiple connection types or the RATs corresponding to the MNs and/or the SNs in the multiple connections respectively.

Further examples include: receiving multi-connection indication information sent by a base station; the multi-connection indication information carries a multi-connection type, or carries Radio Access Technology (RAT) corresponding to a Master Node (MN) and an auxiliary node (SN) which are connected by a terminal in the multi-connection, or carries RAT corresponding to the SN; and sending first MDT configuration information of the MN and/or second MDT configuration information of the SN to the base station according to the multi-connection type or the RAT respectively corresponding to the MN and/or the SN in the multi-connection.

The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A MDT configuration method of MDT is characterized in that the MDT configuration method comprises the following steps:

and receiving first MDT configuration information of the MN and/or second MDT configuration information of the SN, which are sent by the core network, wherein the first MDT configuration information and/or the second MDT configuration information configure the core network according to the multi-connection type or the RAT corresponding to the MN and/or the SN in the multi-connection respectively.

2. The MDT configuration method of claim 1, wherein the sending, by the base station, the multi-connection indication information of the terminal to the core network when the base station determines that the terminal is in the multi-connection state includes:

when the base station determines that the terminal enters a multi-connection state, the base station sends the multi-connection indication information to the core network; alternatively, the first and second electrodes may be,

and when the base station determines that the terminal is in a multi-connection state and receives the first MDT configuration information of the MN sent by the core network, the base station sends the multi-connection indication information to the core network.

3. The MDT configuration method of claim 2, wherein the determining, by the base station, that the terminal enters the multi-connection state includes:

when the base station receives a Radio Resource Control (RRC) reconfiguration completion message of a SN (service number) sent by a terminal, determining that the terminal enters a multi-connection state; alternatively, the first and second electrodes may be,

and when the base station receives an RRC reconfiguration complete message of the SN sent by the terminal and sends the RRC reconfiguration complete message to the SN, determining that the terminal enters a multi-connection state.

4. The MDT configuration method of claim 1, wherein the sending the multi-connection indication information of the terminal to the core network comprises:

and sending the multi-connection indication information to the core network through preset modification indication information or preset signaling.

5. The MDT configuration method according to claim 1, wherein after receiving the first MDT configuration information of the MN and/or the second MDT configuration information of the SN sent by the core network, the MDT configuration method further comprises:

when only the first MDT configuration information is received, transmitting the first MDT configuration information to the terminal;

when only the second MDT configuration information is received, sending the second MDT configuration information to the SN, and sending the second MDT configuration information to the terminal by the SN or directly sending the second MDT configuration information to the terminal;

when the first MDT configuration information and the second MDT configuration information are received, directly sending the first MDT configuration information and the second MDT configuration information to the terminal; or sending the first MDT configuration information to the terminal, sending the second MDT configuration information to the SN, and sending the second MDT configuration information to the terminal by the SN; or performing information deduplication processing on the first MDT configuration information and the second MDT configuration information, and sending the MDT configuration information subjected to the information deduplication processing to the terminal;

when receiving the second MDT configuration information after receiving the first MDT configuration information and sending the first MDT configuration information to the terminal, sending the second MDT configuration information to the SN, and sending the second MDT configuration information to the terminal by the SN; or directly sending the second MDT configuration information to the terminal;

when the second MDT configuration information is received after the first MDT configuration information is received and the first MDT configuration information is not sent to the terminal, directly sending the first MDT configuration information and the second MDT configuration information to the terminal; or performing information deduplication processing on the first MDT configuration information and the second MDT configuration information, and sending the MDT configuration information subjected to the information deduplication processing to the terminal.

6. The MDT configuration method according to any one of claims 1 to 5, wherein when the multi-connection indication information is sent by the base station when it is determined that the terminal enters a multi-connection state, the MDT configuration method further comprises:

and when detecting that the terminal is disconnected from the multi-connection, sending multi-connection disconnection indication information to the core network.

7. A MDT configuration method of MDT is characterized in that the MDT configuration method comprises the following steps:

8. The MDT configuration method of claim 7, wherein the sending, to the base station, the first MDT configuration information of the MN and/or the second MDT configuration information of the SN comprises:

when the first MDT configuration information is not sent to the base station, the multi-connection indication information is received, and the first MDT configuration information and/or the second MDT configuration information are/is sent to the base station;

and when the multi-connection indication information is received after the first MDT configuration information is sent to the base station, sending the second MDT configuration information to the base station.

9. The MDT configuration method according to claim 7 or 8, wherein the MDT configuration method further comprises:

receiving multi-connection disconnection indication information sent by the base station;

and deleting the multi-connection indication information according to the multi-connection disconnection indication information, and stopping sending the second MDT configuration information to the base station.

10. An MDT configuration apparatus, comprising:

a receiving module, configured to receive first MDT configuration information of the MN and/or second MDT configuration information of the SN sent by the core network, where the first MDT configuration information and/or the second MDT configuration information configure, for the core network, according to the multiple connection types or RATs respectively corresponding to the MN and/or the SN in the multiple connections.

11. An MDT configuration apparatus, comprising:

12. A base station comprising a memory, a processor, and a program stored on the memory and executable on the processor, wherein the processor when executing the program performs the steps of:

13. The base station of claim 12, wherein the sending the multi-connection indication information of the terminal to the core network when the base station determines that the terminal is in the multi-connection state comprises:

14. The base station of claim 13, wherein when the base station determines that the terminal enters the multi-connection state, the method comprises:

15. The base station of claim 12, wherein the sending the multi-connection indication information of the terminal to the core network comprises:

16. The base station of claim 12, wherein after receiving the first MDT configuration information of the MN and/or the second MDT configuration information of the SN sent by the core network, the processor further implements the following steps when executing the program:

17. The base station according to any of claims 12 to 16, wherein when the multi-connection indication information is sent by the base station when determining that the terminal enters the multi-connection state, the processor executes the program to further implement the following steps:

18. A core network comprising a memory, a processor, and a program stored on the memory and executable on the processor, wherein the processor executes the program to perform the steps of:

19. The core network of claim 18, wherein the sending the first MDT configuration information of the MN and/or the second MDT configuration information of the SN to the base station comprises:

20. Core network according to claim 18 or 19, wherein the processor when executing the program further performs the steps of:

21. A non-transitory computer readable storage medium, on which a computer program is stored, which, when being executed by a processor, performs the steps of the MDT configuration method according to any one of claims 1 to 9.