Terminal mobility enhancement method and device, network equipment, storage medium and computer program product

Abstract

The invention discloses a terminal mobility enhancement method and device, network equipment, a storage medium and a computer program product, and the method comprises the steps that first network equipment obtains first information; and / or sending second information to one or more second network devices, wherein the first information represents movement track prediction information of the first terminal in an MR-DC scene; the second information represents related configuration or signaling used for collecting or acquiring a real or measured movement track of the first terminal.

Description

Technical Field

[0001] The present application relates to the field of communication technologies, and in particular to a method, apparatus, network device, storage medium, and computer program product for enhancing terminal mobility. Background Art

[0002] In a multi-radio dual connectivity (MR-DC) scenario, a user equipment (UE) first establishes a connection with a master cell group (MCG). After the UE establishes a connection with the MCG, a secondary cell group (SCG) is added. Due to the mobility of the UE, related technologies have the problem of long delays when changing secondary nodes (SNs) or primary and secondary cells (PSCells). The SN is the node to which the SCG belongs, and the PSCell is the first cell that the UE connects to within the SCG. Summary of the Invention

[0003] To solve related technical problems, embodiments of the present application provide a terminal mobility enhancement method, apparatus, network device, storage medium, and computer program product.

[0004] The technical solution of the embodiment of the present application is implemented as follows:

[0005] An embodiment of the present application provides a method for enhancing terminal mobility, which is applied to a first network device. The method includes:

[0006] obtaining first information; and / or

[0007] Sending second information to one or more second network devices; wherein,

[0008] The first information represents the mobile trajectory prediction information of the first terminal in a multi-radio dual connectivity (MR-DC) scenario; the second information represents the relevant configuration or signaling used to collect or obtain the actual or measured mobile trajectory of the first terminal.

[0009] In the above solution, after obtaining the first information, the method further includes:

[0010] Sending the first information to one or more second network devices; and / or

[0011] The first information is sent to one or more third network devices.

[0012] In the above solution, obtaining the first information includes one or more of the following:

[0013] Generate first information; the first information includes movement trajectory prediction information of the first terminal in the MR-DC scenario for the second network device, and / or movement trajectory prediction information of the first terminal in the MR-DC scenario for the first network device and / or the third network device;

[0014] Predicting first information using the first model; the first information includes movement trajectory prediction information of the first terminal in an MR-DC scenario for the second network device, and / or movement trajectory prediction information of the first terminal in an MR-DC scenario for the first network device and / or a third network device;

[0015] First information sent by a third network device is received, where the first information is movement trajectory prediction information of the first terminal in an MR-DC scenario for the first network device and / or the third network device.

[0016] In the above solution, the first information includes one or more of the following:

[0017] First cell information, where the first cell information represents relevant information of a primary cell (PCell);

[0018] Second cell information, where the second cell information represents relevant information of a primary secondary cell (PSCell) and / or a secondary node (SN);

[0019] Third cell information, where the third cell information represents relevant information of a Master Cell Group (MCG);

[0020] Fourth cell information, where the fourth cell information represents relevant information of a secondary cell group (SCG);

[0021] Fifth cell information, where the fifth cell information represents relevant information about an SCG activation state or a deactivation state;

[0022] third information, where the third information is used to indicate a time during which the first terminal is in a single connection state or an MR-DC state;

[0023] The data volume of the first terminal.

[0024] In the above solution, the first cell information includes at least one or more of the following:

[0025] Identifications of one or more PCells of a next-hop or multi-hop second network device of the first network device;

[0026] identifiers of one or more PCells of the first network device;

[0027] Identifications of one or more PCells of the third network device.

[0028] In the above solution, the second cell information includes one or more of the following:

[0029] PSCell's logo;

[0030] PSCell list;

[0031] SN logo;

[0032] SN list;

[0033] The expected average downlink signal quality or average downlink signal strength when connected to each PSCell;

[0034] The expected average downlink signal quality or average downlink signal strength when connected to each SN;

[0035] a duration for which the first terminal maintains a connection with each PSCell;

[0036] The time when the first terminal establishes a connection with each PSCell;

[0037] a probability of the first terminal adding each PSCell;

[0038] The duration of the connection between the first terminal and each SN;

[0039] The time when the first terminal establishes a connection with each SN;

[0040] The probability of the first terminal adding each SN.

[0041] In the above solution, the third cell information includes:

[0042] The identity of the cell included in the MCG; and / or

[0043] The duration that each cell included in the MCG serves as a serving cell.

[0044] In the above solution, the fourth cell information includes:

[0045] The identity of the cell contained in the SCG; and / or

[0046] The duration during which each cell included in the SCG serves as a serving cell.

[0047] In the above solution, the fifth cell information includes one or more of the following:

[0048] SCG activation status information;

[0049] SCG deactivation status information;

[0050] The moment or duration of SCG activation;

[0051] The time or duration of SCG deactivation;

[0052] The moment or duration of the SCG activation state change;

[0053] The moment or duration when the SCG deactivation state changes.

[0054] In the above solution, the third information includes one or more of the following:

[0055] An estimated starting time for the first terminal to establish the MR-DC;

[0056] an estimated duration for the first terminal to be in the MR-DC state;

[0057] an estimated time when the first terminal releases the MR-DC;

[0058] an estimated start time when the first terminal enters a single connection state;

[0059] an estimated time when the first terminal enters a single connection state;

[0060] The estimated duration of time that the first terminal is in a single connection state.

[0061] In the above solution, before predicting and obtaining the first information using the first model, the method further includes:

[0062] Training the first model based on fourth information, wherein the fourth information represents input information of the first model; and / or

[0063] The first model is modified and / or retrained and / or iteratively updated according to fifth information, where the fifth information represents relevant information of the real or measured movement trajectory of the first terminal.

[0064] In the above solution, the fourth information includes one or more of the following:

[0065] Current PSCell information;

[0066] Historical PSCell related information;

[0067] The PCell and / or PSCell to which the first terminal and / or the second terminal is currently connected, the second terminal representing a terminal different from the first terminal;

[0068] the PCell and / or PSCell to which the first terminal and / or the second terminal is historically connected, the second terminal representing a terminal different from the first terminal;

[0069] The historical movement trajectory of the first terminal and / or the second terminal, where the second terminal represents a terminal different from the first terminal.

[0070] In the above solution, the method further includes:

[0071] The fourth information is obtained.

[0072] In the above solution, obtaining the fourth information includes one or more of the following:

[0073] receiving fourth information sent by the first terminal and / or a second terminal, where the second terminal represents a terminal different from the first terminal;

[0074] receiving fourth information reported by one or more fourth network devices;

[0075] A first request is sent to one or more fourth network devices, and fourth information fed back by the one or more fourth network devices is received; the first request is used to request to obtain the fourth information.

[0076] In the above solution, the second information includes one or more of the following:

[0077] first configuration information, where the first configuration information is used to indicate whether or not it is necessary to record and / or measure and / or collect and / or feed back the actual or measured movement trajectory of the first terminal or information related to the movement trajectory;

[0078] second configuration information, where the second configuration information is used to instruct recording and / or measurement and / or collection and / or feedback of a real or measured movement trajectory or related information of the movement trajectory of the first terminal;

[0079] third configuration information, where the third configuration information is used to indicate a first condition for starting measurement and / or recording and / or collection and / or feedback of a real movement trajectory of the first terminal;

[0080] Fourth configuration information, where the fourth configuration information is used to indicate a second condition for ending or stopping measuring and / or recording and / or collecting the real movement trajectory of the first terminal;

[0081] Fifth configuration information, where the fifth configuration information is used to instruct recording and / or measurement and / or collection and / or feedback of a real or measured movement trajectory or related information of the movement trajectory of the first terminal within a first time period;

[0082] Sixth configuration information, the sixth configuration information is used to indicate the duration, maximum duration, deadline, or latest time of feedback of the fifth information or the sixth information, the fifth information represents the actual or measured movement trajectory of the first terminal, and the sixth information represents abnormal information that cannot feedback the fifth information; wherein,

[0083] In the absence of the third configuration information or the first condition, it represents that the first terminal starts measuring and / or recording and / or collecting the actual movement trajectory or relevant information of the movement trajectory of the first terminal when entering the range of the second network device.

[0084] In the above solution, the first configuration information is used to indicate one or more of the following:

[0085] Recording and / or measuring and / or collecting and / or feeding back relevant information of a real or measured movement trajectory of the first terminal in a single connection state after the first terminal successfully accesses or switches to the second network device;

[0086] Recording and / or measuring and / or collecting and / or feeding back relevant information of the real or measured movement trajectory of the first terminal in only the MR-DC state after the first terminal successfully accesses or switches to the second network device;

[0087] Recording and / or measuring and / or collecting and / or feeding back relevant information of the PCell to which the first terminal is connected after successfully accessing or switching to the second network device;

[0088] Recording and / or measuring and / or collecting and / or feeding back relevant information of the PSCell to which the first terminal is connected after successfully accessing or switching to the second network device;

[0089] Record and / or measure and / or collect and / or feedback relevant information of the real or measured movement trajectory of the first terminal in the single connection state and MR-DC state after successfully accessing or switching to the second network device.

[0090] In the above solution, the second configuration information is used to instruct the second network device to record and / or measure and / or collect and / or feedback one or more of the following information related to the real or measured movement trajectory of the first terminal:

[0091] PCell related information;

[0092] Information about MCG;

[0093] SN related information;

[0094] PSCell related information;

[0095] Information about SCG;

[0096] The duration of SCG activation;

[0097] The duration of SCG deactivation;

[0098] The time when the first terminal establishes the MR-DC;

[0099] duration of the first terminal being in the MR-DC state;

[0100] The moment when the first terminal releases MR-DC;

[0101] The location information of the first terminal when connected to the PSCell.

[0102] In the above solution, the first condition includes one or more of the following:

[0103] The first terminal establishes an MR-DC within a range of the second network device;

[0104] The first information does not contain a target PSCell that the first terminal successfully adds or switches to;

[0105] The PSCell for actually establishing the MR-DC by the first terminal does not match the PSCell in the first information; at the start time when the first terminal is expected to establish the MR-DC, the first terminal fails to successfully establish the MR-DC;

[0106] The first terminal fails in the MR-DC state;

[0107] The first terminal fails in the MR-DC state and finds the PSCell to restore the SN connection;

[0108] The first terminal fails in the MR-DC state and the SN connection is not restored within a set time period;

[0109] The first terminal successfully switches to the second network device;

[0110] The first terminal establishes a connection with the second network device, or the first terminal successfully accesses the second network device.

[0111] In the above solution, the second condition includes one or more of the following:

[0112] The first terminal fails in the MR-DC state;

[0113] The first terminal fails in the MR-DC state and finds the PSCell to restore the SN connection;

[0114] The first terminal fails in the MR-DC state and the SN connection is not restored within a set time period;

[0115] The first information does not contain a target PSCell that the first terminal successfully adds or switches to;

[0116] The PSCell where the first terminal actually establishes the MR-DC does not match the PSCell in the first information.

[0117] In the above solution, the fifth configuration information is used to indicate one or more of the following:

[0118] At the start of the first time period, start measuring and / or recording and / or collecting relevant information of the real or measured movement trajectory of the first terminal;

[0119] When the first condition is met, start measuring and / or recording and / or collecting relevant information of the real or measured movement trajectory of the first terminal;

[0120] When the first terminal successfully accesses or switches to the second network device, start measuring and / or recording and / or collecting relevant information of the real or measured movement trajectory of the first terminal;

[0121] When the first time period ends or the first time period expires, stop or end measuring and / or recording and / or collecting relevant information of the real or measured movement trajectory of the first terminal;

[0122] When the first time period ends or expires, information related to the real or measured movement trajectory of the first terminal is sent to or fed back to the first network device.

[0123] In the above solution, after sending the second information to one or more second network devices, the method further includes:

[0124] Receive fifth information or sixth information sent by one or more second network devices based on the second information, where the fifth information represents relevant information of the real or measured movement trajectory of the first terminal, and the sixth information represents abnormal information that the fifth information cannot be fed back.

[0125] In the above solution, the fifth information includes one or more of the following:

[0126] A first condition for starting measurement and / or recording and / or collection of a real movement trajectory of the first terminal;

[0127] A second condition for ending or stopping measuring and / or recording and / or collecting the real movement trajectory of the first terminal;

[0128] seventh information, where the seventh information represents a reason or related information why the actual state of the first terminal does not match the movement trajectory prediction information represented by the first information;

[0129] PCell's logo;

[0130] a dwell time of the first terminal in the PCell;

[0131] The identifiers of the cells included in the MCG;

[0132] The duration that each cell included in the MCG serves as a serving cell;

[0133] SN logo;

[0134] PSell's logo;

[0135] an average downlink signal quality or average downlink signal strength that can be achieved when the first terminal is connected to the SN;

[0136] The duration of the connection between the first terminal and the SN;

[0137] an average downlink signal quality or average downlink signal strength achievable by the first terminal when connected to the PSell;

[0138] a duration during which the first terminal maintains a connection with the PSell;

[0139] The identity of the cell included in the SCG;

[0140] The duration that each cell included in the SCG serves as a serving cell;

[0141] The moment or duration of SCG activation;

[0142] The time or duration of SCG deactivation;

[0143] The time when the first terminal establishes the MR-DC within a first time period, where the first time period represents a time period for measuring or collecting the movement trajectory of the first terminal;

[0144] a duration during which the first terminal is in the MR-DC state within a first time period, where the first time period represents a time period for measuring or collecting a movement trajectory of the first terminal;

[0145] a time when the first terminal releases the MR-DC within a first time period, where the first time period represents a time period for measuring or collecting a movement trajectory of the first terminal;

[0146] The average data volume of the first terminal in a first time period, where the first time period represents a time period for measuring or collecting the movement trajectory of the first terminal.

[0147] In the above solution, the seventh information includes one or more of the following:

[0148] The first information does not contain a target PSCell that the first terminal successfully adds or switches to;

[0149] The PSCell for actually establishing the MR-DC by the first terminal does not match the PSCell in the first information;

[0150] Measurement information related to a target PSCell successfully added or switched by the first terminal;

[0151] A start time of a target PSCell successfully added or switched by the first terminal;

[0152] A retention duration of a target PSCell successfully added or switched by the first terminal;

[0153] location information of the first terminal when the first terminal successfully adds or switches to a target PSCell;

[0154] No PSCells were measured;

[0155] No PSCell was found that could be used to establish or restore the SN connection;

[0156] The service or data volume of the first terminal does not require the establishment of an MR-DC;

[0157] an identifier of a PSCell in which the first terminal fails in the MR-DC state;

[0158] The identifier of the PSCell used to restore the SN connection;

[0159] PSCell-related measurement information used to restore SN connection;

[0160] The starting time when the first terminal is connected to the PSCell used to restore the SN connection;

[0161] The duration for which the first terminal is connected to the PSCell used to restore the SN connection;

[0162] The location information of the first terminal when the first terminal is connected to the PSCell used to restore the SN connection.

[0163] In the above solution, the sixth information includes one or more of the following:

[0164] Abnormal indication information, where the abnormal indication information is used to indicate a sending error or failure of the second network device, and / or is used to indicate that complete fifth information cannot be obtained by measuring according to the fourth information;

[0165] Exception reason value.

[0166] In the above solution, the abnormality cause value is used to indicate one or more of the following:

[0167] No PSCells were measured;

[0168] No PSCell was found that could be used to establish or restore the SN connection;

[0169] The service or data volume of the first terminal does not require the establishment of an MR-DC;

[0170] The reason why the first terminal fails to establish the MR-DC;

[0171] a reason why the first terminal fails in the MR-DC state;

[0172] The reason why the first terminal did not restore the SN connection after sending failed in the MR-DC state.

[0173] In the above solution, the method further includes:

[0174] When the sixth information is received, the context or configuration information of the first terminal is released.

[0175] In the above solution, the fourth network device includes one or more of the following:

[0176] Neighboring nodes of the source master node MN;

[0177] target MN;

[0178] Candidate target MN;

[0179] Source SN;

[0180] Target SN;

[0181] Candidate target SN.

[0182] The embodiment of the present application further provides a terminal mobility enhancement method, which is applied to a third network device, and the method includes:

[0183] Obtaining first information, and / or

[0184] Sending first information to the first network device; wherein,

[0185] The first information represents movement trajectory prediction information for the first terminal in the MR-DC scenario.

[0186] In the above solution, the method further includes:

[0187] A first operation is performed according to the first information, where the first operation represents preparation or preprocessing operations related to adding, changing, activating, or deactivating SN and / or PSCell.

[0188] In the above solution, the first operation includes one or more of the following:

[0189] Determining whether to configure MR-DC for the first terminal;

[0190] Select candidate PSCells;

[0191] Allocate candidate SN reserved resources;

[0192] Determining a time to configure MR-DC for the first terminal;

[0193] Configuring or pre-configuring transmission resources in an MR-DC scenario for the first terminal;

[0194] Adjust the transmission resources in the MR-DC scenario configured for the first terminal.

[0195] In the above solution, obtaining the first information includes one or more of the following:

[0196] Generate first information, where the first information is movement trajectory prediction information of the first terminal in an MR-DC scenario for the first network device and / or the third network device;

[0197] receiving first information sent by a first network device; the first information including movement trajectory prediction information of the first terminal in an MR-DC scenario for the second network device, and / or movement trajectory prediction information of the first terminal in an MR-DC scenario for the first network device and / or a third network device;

[0198] The first information is predicted by the second model; the first information includes movement trajectory prediction information of the first terminal in the MR-DC scenario for the first network device and / or the third network device.

[0199] In the above solution, the method further includes:

[0200] The second model is trained based on fourth information, where the fourth information represents input information of the second model.

[0201] The embodiment of the present application further provides a terminal mobility enhancement method, which is applied to a second network device, and the method includes:

[0202] Receive first information and / or second information sent by a first network device, where the first information represents mobile trajectory prediction information for the first terminal in an MR-DC scenario, and the second information represents relevant configuration or signaling for collecting or obtaining a real or measured mobile trajectory of the first terminal.

[0203] In the above solution, the method further includes:

[0204] A second operation is performed according to the second information.

[0205] In the above solution, the second operation includes one or more of the following:

[0206] Initiate measurement and / or record relevant information of the real or measured movement trajectory of the first terminal;

[0207] Stop measuring and / or recording relevant information of the real or measured movement trajectory of the first terminal;

[0208] Sending or feeding back fifth information or sixth information to the first network device, where the fifth information represents relevant information about the actual or measured movement trajectory of the first terminal, and the sixth information represents abnormal information that the fifth information cannot be fed back;

[0209] Sending eighth information to the fifth network device, where the eighth information represents relevant configuration or signaling for recording and / or measuring and / or collecting and / or feeding back the real or measured movement trajectory of the first terminal;

[0210] Receive fifth information or ninth information sent by the fifth network device according to the eighth information, where the fifth information represents relevant information of the real or measured movement trajectory of the first terminal, and the ninth information represents abnormal information that the fifth information cannot be fed back.

[0211] In the above solution, the eighth information includes one or more of the following:

[0212] Seventh configuration information, where the seventh configuration information is used to indicate whether or not it is necessary to record and / or measure and / or collect and / or feed back the actual or measured movement trajectory of the first terminal or information related to the movement trajectory;

[0213] Eighth configuration information, where the eighth configuration information is used to instruct recording and / or measurement and / or collection and / or feedback of a real or measured movement trajectory or related information of the movement trajectory of the first terminal;

[0214] Ninth configuration information, the ninth configuration information is used to instruct recording and / or measurement and / or collection and / or feedback of the actual or measured movement trajectory or related information of the movement trajectory of the first terminal in the second time period.

[0215] In the above solution, the eighth configuration information is used to instruct the fifth network device to record and / or measure and / or collect and / or feedback one or more of the following information of the first terminal in the MR-DC state:

[0216] PSell related information;

[0217] Information about SCG;

[0218] SN related information;

[0219] The duration of SCG activation;

[0220] The duration of SCG deactivation;

[0221] The time when the first terminal establishes the MR-DC;

[0222] duration of the first terminal being in the MR-DC state;

[0223] The moment when the first terminal releases MR-DC;

[0224] A performance indicator of the first terminal within the range of the fourth network device.

[0225] In the above solution, the ninth configuration information is used to indicate one or more of the following:

[0226] The starting time of the second time period is the time when the first terminal establishes a connection with the target SN;

[0227] At a start time of the second time period, start measuring and / or recording and / or collecting relevant information of the real or measured movement trajectory of the first terminal;

[0228] When the end moment of the second time period is reached or the second time period expires, stopping or ending the measurement and / or recording and / or recording relevant information of the real or measured movement trajectory of the first terminal;

[0229] When the second time period ends or expires, information related to the real or measured movement trajectory of the first terminal is sent to or fed back to the first network device.

[0230] In the above solution, the method further includes:

[0231] A first operation is performed according to the first information, where the first operation represents preparation or preprocessing operations related to adding, changing, activating, or deactivating SN and / or PSCell.

[0232] In the above solution, the first operation includes one or more of the following:

[0233] Determining whether to configure MR-DC for the first terminal;

[0234] Select a candidate SN;

[0235] Instructing the candidate SN to reserve resources for the first terminal;

[0236] Determining a time to configure MR-DC for the first terminal;

[0237] Configuring or pre-configuring transmission resources in an MR-DC scenario for the first terminal;

[0238] Adjusting transmission resources in the MR-DC scenario configured for the first terminal;

[0239] Determine the time to activate SN;

[0240] Activate SN in advance;

[0241] Determine when to activate the PSCell;

[0242] Activate PSCell in advance;

[0243] Determine the time to deactivate the SN;

[0244] Determine when to deactivate the PSCell.

[0245] The present application also provides a terminal mobility enhancement device, including:

[0246] A first acquiring unit is configured to acquire first information; and / or

[0247] The first sending unit is configured to send second information to one or more second network devices; wherein,

[0248] The first information represents movement trajectory prediction information for the first terminal in the MR-DC scenario; the second information represents relevant configuration or signaling for collecting or obtaining the actual or measured movement trajectory of the first terminal.

[0249] The present application also provides a terminal mobility enhancement device, including:

[0250] A second acquiring unit is configured to acquire first information; and / or

[0251] The second sending unit is configured to send the first information to the first network device; wherein the first information represents movement trajectory prediction information for the first terminal in the MR-DC scenario.

[0252] The present application also provides a terminal mobility enhancement device, including:

[0253] A first receiving unit is used to receive first information and / or second information sent by a first network device, where the first information represents the mobile trajectory prediction information for the first terminal in the MR-DC scenario, and the second information represents the relevant configuration or signaling used to collect or obtain the actual or measured mobile trajectory of the first terminal.

[0254] The embodiment of the present application further provides a first network device, comprising: a first processor and a first communication interface; wherein,

[0255] The first processor is configured to obtain first information, where the first information represents movement trajectory prediction information for the first terminal in an MR-DC scenario; and / or

[0256] The first communication interface is used to send second information to one or more second network devices, where the second information represents relevant configuration or signaling for collecting or obtaining the real or measured movement trajectory of the first terminal.

[0257] The embodiment of the present application further provides a second network device, comprising: a second processor and a second communication interface; wherein,

[0258] The second communication interface is used to receive first information and / or second information sent by the first network device, the first information represents the mobile trajectory prediction information for the first terminal in the MR-DC scenario, and the second information represents the relevant configuration or signaling used to collect or obtain the real or measured mobile trajectory of the first terminal.

[0259] The embodiment of the present application further provides a third network device, comprising: a third processor and a third communication interface; wherein,

[0260] The third processor is configured to obtain first information;

[0261] The third communication interface is used to send the first information to the first network device; wherein,

[0262] The first information represents movement trajectory prediction information for the first terminal in the MR-DC scenario.

[0263] The embodiment of the present application further provides a network device, comprising a processor and a memory for storing a computer program that can be run on the processor.

[0264] In which, when the processor is used to run the computer program, it executes the steps of any method on the first network device side, or executes the steps of any method on the second network device side, or executes the steps of any method on the third network device side.

[0265] An embodiment of the present application also provides a storage medium on which a computer program is stored, characterized in that when the computer program is executed by a processor, it implements the steps of any method on the first network device side, or implements the steps of any method on the second network device side, or executes the steps of any method on the third network device side.

[0266] An embodiment of the present application further provides a computer program product, comprising a computer program, which implements the steps of any of the above methods when executed by a processor.

[0267] In the terminal mobility enhancement method, apparatus, network device, storage medium, and computer program product provided in the embodiments of the present application, a first network device obtains first information and / or sends second information to one or more second network devices; a second network device receives the first information and / or second information sent by the first network device; a third network device obtains the first information and / or sends the first information to the first network device; the first information represents the predicted movement trajectory information of the first terminal in the MR-DC scenario, and the second information represents the relevant configuration or signaling used to collect or obtain the actual or measured movement trajectory of the first terminal. It can be seen that in the embodiment of the present application, the first network device and / or the third network device can obtain the mobile trajectory prediction information of the first terminal in the MR-DC scenario, and the first network device can also obtain the actual or measured mobile trajectory of the first terminal in the MR-DC scenario by sending the second information. The mobile trajectory of the first terminal is composed of PCell and / or PScell ​​or SN, and PScell ​​belongs to SN. Therefore, the above scheme can enable the first network device to update or optimize the mobile trajectory prediction information of the first terminal in the MR-DC scenario according to the actual or measured mobile trajectory of the first terminal in the MR-DC scenario, and enable the second network device or the third network device (target node) to prepare for related processes such as adding / changing / activating / deactivating SN or PSCell in the MR-DC scenario in advance according to the first information, which can shorten the delay of processes such as adding / changing SN / PSCell, improve the robustness of UE mobility in the MR-DC scenario, and avoid the second network device or the third network device from performing unnecessary PSCell preparation work and waste of SN resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0268] Figure 1 This is an example diagram of the architecture of the AI / ML model of related technologies;

[0269] Figure 2 This is a flow chart of a method for enhancing terminal mobility according to an embodiment of the present application;

[0270] Figure 3This is a flow chart of a method for enhancing terminal mobility according to an embodiment of the present application;

[0271] Figure 4 This is a flow chart of a method for enhancing terminal mobility according to an embodiment of the present application;

[0272] Figure 5 This is a schematic diagram of an interaction flow of a terminal mobility enhancement method according to an embodiment of the present application;

[0273] Figure 6 This is a schematic structural diagram of a terminal mobility enhancement device according to an embodiment of the present application;

[0274] Figure 7 This is a schematic structural diagram of a terminal mobility enhancement device according to an embodiment of the present application;

[0275] Figure 8 This is a schematic structural diagram of a terminal mobility enhancement device according to an embodiment of the present application;

[0276] Figure 9 This is a schematic diagram of the structure of the first network device according to an embodiment of the present application;

[0277] Figure 10 This is a schematic diagram of the structure of the second network device according to an embodiment of the present application;

[0278] Figure 11 This is a schematic diagram of the third network device structure of an embodiment of the present application. DETAILED DESCRIPTION

[0279] Dual Connectivity (DC) refers to connecting two networks simultaneously. To distinguish the primary and secondary networks, the network with a control connection to the core network is called the MCG, and the other network (the "secondary network") is called the SCG. LTE-LTE DC, introduced in the Long-Term Evolution (LTE) phase, is the first DC.

[0280] In the New Radio (NR) phase, due to different operator requirements and to maximize the reuse of existing LTE networks, NR defines three DC scenarios: EN-DC, NE-DC, and NR-DC. EN-DC, NE-DC, and NR-DC are also collectively referred to as MR-DC.

[0281] EN-DC, namely LTE-NR DC, LTE is MCG and NR is SCG.

[0282] NE-DC, namely NR-LTE DC, NR is MCG and LTE is SCG.

[0283] NR-DC, i.e. NR-NR DC, MCG and SCG are all NR.

[0284] In a "network," there is more than just one cell. A "network" can also have multiple cells deployed within it (a group of cells), which is why the "primary network" is called a primary cell group (MCG) and the "secondary network" is called a secondary cell group (SCG).

[0285] MCG contains one or more cells and is the first cell group connected by the UE; PCell is the boss of all cells in MCG and is the first cell connected by the UE in MCG; all cells in the main cell group except PCell are called SCell.

[0286] The SCG consists of one or more cells and is a cell group added by the UE after establishing a connection with the MCG. The PSCell is the leader of all cells in the SCG and is the first cell connected to the UE in the SCG. Cells other than the PSCell in the SCG are also called SCells.

[0287] NR networks require continuous optimization of a growing number of key performance indicators (KPIs), such as latency, reliability, connection density, user experience, and energy efficiency. Artificial intelligence (AI) and machine learning (ML) provide a powerful tool that can help operators improve network management and user experience by analyzing collected data and automatically processing and outputting corresponding policies. Figure 1 An example diagram of the architecture of an AI / ML model is shown; Figure 1 It includes data collection module, model training module, model inference module and actor execution module.

[0288] The data acquisition module provides training data for the model training module and input data for the model inference module. Training data and input data include one or more of the following: measurement data from user terminals and different network elements, feedback data from actor modules, and output data from AI / ML models. The data acquisition module only provides raw data and does not require specific data preparation (data cleaning, data formatting, data conversion, etc.) for different AI / ML algorithms.

[0289] The model training module is responsible for training, testing, and validating AI / ML models, generating metrics for model performance. Specific functions of the model training module include data preparation and model deployment or updates. Data preparation involves organizing the training data provided by the data acquisition module (data cleaning, data formatting, data conversion, etc.). Model deployment or updates involves deploying the trained, tested, and validated AI / ML model to the model inference module.

[0290] The model inference module provides inference output (prediction or decision) of the AI / ML model and can provide feedback on model performance to the model training module. Specific functions of the model inference module include: Model Performance Feedback (Model Performance Feedback) and data preparation. The Model Performance Feedback function can be used to verify the performance of the AI / ML model; the Data Preparation function is used to organize the inference data provided by the Data Collection module (data cleaning, data formatting, data conversion, etc.).

[0291] The Actor module is used to initiate corresponding actions after receiving the inference output (prediction or decision) from the model inference module. It is also used to feedback the results to the data acquisition module; the feedback results can be used for AI / ML model training, inference or performance testing.

[0292] In the mobility optimization scenario, a source node with AI / ML capabilities can use the model inference module to predict the movement trajectory of a specific UE (Predicted UE Trajectory). The source node sends the predicted trajectory to the target node, which can directly use this prediction information to reserve transmission resources in advance. On the other hand, in order to continuously iterate the AI / ML model, the source node also needs to obtain the real UE Trajectory as feedback. The real UE Trajectory can be used to monitor the output performance of the AI / ML model, retrain the AI / ML model in a timely manner, and continuously improve the capabilities and performance of the AI / ML model.

[0293] Currently, for mobility optimization scenarios, the source node can only provide the predicted UE trajectory within the next-hop base station (hereinafter referred to as the target node) in the New Radio (NR) single-connection scenario (hereinafter referred to as Predicted UE Trajectory), and only obtain / collect the real / measured UE trajectory in the NR single-connection scenario from the target node (one hop) (hereinafter referred to as measured UE trajectory collection).

[0294] Existing technologies cannot support UE mobility trajectory prediction (including PCell and PSCell, etc.) under the dual connectivity (DC) scenario MR-DC, and the corresponding real / measured UE mobility trajectory acquisition / collection. As a result, the target node cannot prepare for related processes such as adding / changing / activating / deactivating SN or PSCell in the MR-DC scenario based on AI / ML prediction information in advance, and the SN cannot reserve resources in advance, which prolongs the preparation time of the corresponding process and causes waste of target node resources. In particular, it will seriously affect the user experience for UEs with large data transmission needs.

[0295] Based on this, in various embodiments of the present application, a first network device obtains first information and / or sends second information to one or more second network devices; a second network device receives the first information and / or second information sent by the first network device; a third network device obtains the first information and / or sends the first information to the first network device; the first information represents the predicted movement trajectory information of the first terminal in the MR-DC scenario, and the second information represents the relevant configuration or signaling used to collect or obtain the actual or measured movement trajectory of the first terminal. It can be seen that in an embodiment of the present application, the first network device and / or the third network device can obtain the mobile trajectory prediction information of the first terminal in the MR-DC scenario, and the first network device can also obtain the actual or measured mobile trajectory of the first terminal in the MR-DC scenario by sending the second information, and the mobile trajectory of the first terminal is composed of PCell and / or PScell ​​or SN. Therefore, the above scheme can enable the first network device to update or optimize the mobile trajectory prediction information of the first terminal in the MR-DC scenario according to the actual or measured mobile trajectory of the first terminal in the MR-DC scenario, and enable the second network device or the third network device (target node) to prepare for related processes such as adding / changing / activating / deactivating SN or PSCell in the MR-DC scenario in advance according to the first information, which can shorten the delay of processes such as adding / changing SN / PSCell, improve the robustness of UE mobility in the MR-DC scenario, and avoid the second network device or the third network device from performing unnecessary PSCell preparation work and waste of SN resources.

[0296] The present application will be described in further detail below with reference to the accompanying drawings and embodiments.

[0297] The embodiment of the present application provides a terminal mobility enhancement method, which is applied to a first network device. The first network device can be called a source node or a source master node (source MN). Both the source node and the source MN can be base stations. Before establishing MR-DC for the first network device, the first network device can be called a source node; when establishing MR-DC for the first network device, the first network device can be called a source MN. Figure 2 As shown, the method includes:

[0298] Step 201: Obtain first information; and / or send second information to one or more second network devices.

[0299] The first information represents the predicted movement trajectory information of the first terminal in the MR-DC scenario; the second information represents the relevant configuration or signaling used to collect or obtain the real or measured movement trajectory of the first terminal.

[0300] Here, the first network device sends the second information to one or more second network devices. The first network device may send the second information to each second network device separately; or the first network device may send the second information to the second network device (the next hop of the first network device), and then the second network device that receives the second information sends the second information to the second network device at the next hop, and the second information is transmitted in sequence.

[0301] The second network device represents a target node, which includes a target primary node (target MN) and / or a target secondary node (target SN). The first terminal can be any terminal in the MR-DC scenario for the first network device and / or the second network device and / or the third network device. A terminal generally refers to a terminal capable of communicating with a network device, such as a user equipment (UE), a wearable device, a laptop computer, or a vehicle computer. A vehicle computer is an abbreviation for an in-vehicle infotainment product installed in a car. The vehicle computer functionally enables information communication between people and the car, and between the car and the outside world (e.g., between cars).

[0302] It should be noted that the first information includes the movement trajectory prediction information of the first terminal in the MR-DC scenario for the second network device, and / or the movement trajectory prediction information of the first terminal in the MR-DC scenario for the first network device and / or the third network device. When the first network device serves as the source MN, the third network device may be the source SN.

[0303] The mobile trajectory prediction information for the first terminal in the MR-DC scenario for the second network device is predicted by the first network device, and the second network device can serve as the target SN or target MN. The mobile trajectory prediction information for the first terminal in the MR-DC scenario for the first network device can be understood as the mobile trajectory prediction information for the first terminal in the MR-DC scenario with the first network device as the source node or source MN, which can be predicted by the first network device; when the first network device serves as the source MN and the third network device serves as the source SN, the mobile trajectory prediction information for the first terminal in the MR-DC scenario for the first network device can also be predicted by the third network device. The mobile trajectory prediction information for the first terminal in the MR-DC scenario for the third network device can be understood as the mobile trajectory prediction information for the first terminal in the MR-DC scenario with the third network device as the SN or MN, which can be predicted by the third network device; when the third network device serves as the source SN and the first network device serves as the MN, the mobile trajectory prediction information for the first terminal in the MR-DC scenario for the third network device can also be predicted by the first network device.

[0304] In one embodiment, after obtaining the first information, the method further includes:

[0305] Sending the first information to one or more second network devices; and / or

[0306] The first information is sent to one or more third network devices.

[0307] Here, the first network device sends the first information to one or more second network devices. The first network device may send the first information to each second network device separately; or the first network device may send the first information to the second network device located at the next hop of the first network device, and then the second network device that receives the second information sends the first information to the second network device at the next hop of the second network device, and the first information is transmitted in sequence according to this method.

[0308] The first network device sends the first information to one or more third network devices. The first network device may send the first information to each third network device separately; or the first network device may send the first information to one of the third network devices, and then the third network device that receives the first information sends the first information to the third network device at the next hop of the third network device. The first information is transmitted in sequence according to this method.

[0309] In this embodiment, the first network device sends the first information to one or more second network devices or third network devices, so that the second network device or the third network device can prepare for related processes such as adding / changing / activating / deactivating SN or PSCell in the MR-DC scenario in advance according to the first information. This can shorten the delay of processes such as adding / changing SN / PScell, improve the robustness of UE mobility in the MR-DC scenario, avoid unnecessary PSCell preparation work by the second network device or the third network device, and avoid waste of SN resources.

[0310] To improve the flexibility of obtaining the first information, in one embodiment, obtaining the first information includes one or more of the following:

[0311] Generate first information; the first information includes movement trajectory prediction information for the first terminal in the MR-DC scenario for the second network device, and / or movement trajectory prediction information for the first terminal in the MR-DC scenario for the first network device and / or the third network device;

[0312] Predicting first information using the first model; the first information includes movement trajectory prediction information of the first terminal in an MR-DC scenario for the second network device, and / or movement trajectory prediction information of the first terminal in an MR-DC scenario for the first network device and / or a third network device;

[0313] First information sent by a third network device is received, where the first information is movement trajectory prediction information of the first terminal in an MR-DC scenario for the first network device and / or the third network device.

[0314] Here, generating the first information can be described as determining the first information or predicting the first information. The first model can be an AI model or an ML model. The first model can be understood as a model that has completed training, or a model that has reached a set convergence condition. The first model is trained based on relevant information about the historical movement trajectory of one or more terminals, and / or relevant information about the current movement trajectory of one or more terminals; the movement trajectory can be composed of PCell and / or PSCell and / or SN. The first model is used to predict the first information. The set convergence condition is the condition for ending the training model. The set convergence condition may include one or more of the following: the number of training times reaches the set number, the error of the model is less than the first threshold, and the accuracy of the model is greater than or equal to the second threshold.

[0315] The first information sent by the third network device may be the movement trajectory prediction information of the first terminal in the MR-DC scenario with the third network device as the source SN or source MN; or it may be the movement trajectory prediction information of the first terminal in the MR-DC scenario with the first network device as the source MN and the third network device as the source SN.

[0316] It should be noted that the first model can be obtained by training the first network device, the third network device or the operation administration and maintenance (OAM), and the first model can also be obtained by training other network elements or network functions independent of the first network device and / or the third network device and / or OAM.

[0317] In order to shorten the delay of the process of adding / changing the SN / PSCell and reduce or avoid unnecessary PSCell preparation work performed by the second network device or the third network device, in one embodiment, the first information includes one or more of the following:

[0318] First cell information, where the first cell information represents relevant information of the PCell;

[0319] Second cell information, where the second cell information represents relevant information of the PSCell and / or SN;

[0320] Third cell information, where the third cell information represents relevant information of the MCG;

[0321] Fourth cell information, where the fourth cell information represents relevant information of the SCG;

[0322] Fifth cell information, where the fifth cell information represents relevant information about an SCG activation state or a deactivation state;

[0323] third information, where the third information is used to indicate a time during which the first terminal is in a single connection state or an MR-DC state;

[0324] The data volume of the first terminal.

[0325] Here, the first information sent by the third network device may not include the third cell information and / or the third information. The data volume (traffic) of the first terminal may be an average of the data volume over a period of time after the first terminal successfully switches to the second network device. The data volume of the first terminal can assist the second network device in determining whether it is necessary to establish a dual connection for the first terminal.

[0326] Table 1 and Table 2 respectively give examples of the content included in the first information.

[0327] Table 1

[0328] PCell_1 PSCell_1A SN_1 Activation time: 3s PSCell_1B SN_1 Activation time: 0.2s PSCell_1C SN_2 Activation time: 5s PCell_2 PSCell_2A SN_3 ... NA NA ... ... ...

[0329] Table 2

[0330]

[0331] In order to facilitate the second network device or the third network device to learn the SN or PSCell that the first terminal may access, so as to shorten the delay of the process of adding / changing the SN / PSCell, in one embodiment, the first cell information includes at least one or more of the following:

[0332] Identifications of one or more PCells of a next-hop or multi-hop second network device of the first network device;

[0333] identifiers of one or more PCells of the first network device;

[0334] Identifications of one or more PCells of the third network device.

[0335] Here, the first cell information can be understood as PCell information or a PCell list.

[0336] The identifiers of one or more PCells of the second network device that is the next hop or multi-hop away from the first network device can be described as the identifiers of one or more PCells located within the range of the second network device that is the next hop or multi-hop away from the first network device, or as the identifiers of one or more PCells of the second network device that is the next hop or multi-hop away from the first network device. The identifiers of one or more PCells of the first network device can be described as the identifiers of one or more PCells located within the range of the first network device, or as the identifiers of one or more PCells belonging to the first network device. The identifiers of one or more PCells of the third network device can be described as the identifiers of one or more PCells located on the third network device, or as the identifiers of one or more PCells belonging to the third network device.

[0337] The PCell can be a cell within the range of the second network device that the first terminal is expected to enter when the second network device acts as an MN. That is, this cell serves as the PCell when the first terminal establishes an MR-DC. The PCell can also be one or more cells of the first network device when the first network device acts as an MN. The PCell can also be one or more cells of the third network device when the third network device acts as an MN.

[0338] In order to shorten the delay of the process of adding / changing the SN / PSCell and reduce or avoid unnecessary PSCell preparation work performed by the second network device or the third network device, in one embodiment, the second cell information includes one or more of the following:

[0339] PSCell's logo;

[0340] PSCell list;

[0341] SN logo;

[0342] SN list;

[0343] The expected average downlink signal quality or average downlink signal strength when connected to each PSCell;

[0344] The expected average downlink signal quality or average downlink signal strength when connected to each SN;

[0345] a duration for which the first terminal maintains a connection with each PSCell;

[0346] The time when the first terminal establishes a connection with each PSCell;

[0347] a probability of the first terminal adding each PSCell;

[0348] The duration of the connection between the first terminal and each SN;

[0349] The time when the first terminal establishes a connection with each SN;

[0350] The probability of the first terminal adding each SN.

[0351] Here, the second information can be understood as PSCell information, PSCell list, SN information or SN list. The average downlink signal quality or average downlink signal strength that can be achieved when connected to each PSCell can be understood as the average downlink signal quality or average downlink signal strength that can be achieved when one or more terminals are connected to each PSCell, or the average downlink signal quality or average downlink signal strength that can be achieved when each PSCell in the UE connection list. The UE connection list may include the PSCell and / or SN connected to each UE. The average downlink signal quality can be described as downlink signal quality, maximum downlink signal quality or minimum downlink signal quality; the average downlink signal strength can be described as downlink signal strength, maximum downlink signal strength or minimum signal strength.

[0352] The average downlink signal quality or average downlink signal strength that can be achieved when connected to each SN can be understood as the average downlink signal quality or average downlink signal strength that can be achieved when one or more terminals are connected to each SN, or the average downlink signal quality or average downlink signal strength that can be achieved when the UE is connected to each SN in the list.

[0353] It should be noted that PSCell refers to the PSCell corresponding to a PCell when the terminal establishes MR-DC, which is used to provide dual connectivity transmission; SN refers to the SN to which the PSCell belongs. Secondary cell information can include one or more PSCells or SNs, that is, the movement of the terminal is reflected in the change of PSCell or SN; multiple PSCells can belong to the same SN (i.e., Intra-SN) or different SNs.

[0354] In order to facilitate the second network device or the third network device to learn the MN or PCell that the first terminal may access, thereby learning the SN or PSCell that the first terminal may access, thereby shortening the delay of the process of adding / changing the SN / PSCell, in one embodiment, the third cell information includes:

[0355] The identity of the cell included in the MCG; and / or

[0356] The duration that each cell included in the MCG serves as a serving cell.

[0357] Here, the third cell information can be understood as the cell information or cell list of the MCG, or the information or list of the SCell in the MCG. SCell refers to other serving cells included in the MCG that are different from the PCell. The SCell and the PCell form a carrier aggregation.

[0358] In order to facilitate the second network device or the third network device to learn the SN or PSCell that the first terminal may access, so as to shorten the delay of the process of adding / changing the SN / PSCell, in one embodiment, the fourth cell information includes:

[0359] The identity of the cell contained in the SCG; and / or

[0360] The duration during which each cell included in the SCG serves as a serving cell.

[0361] Here, the fourth cell information can be understood as the cell information or cell list of the SCG, or the information or list of the SCell in the SCG. SCell refers to other serving cells included in the SCG that are different from the PSCell. The SCell and the PCell form a carrier aggregation.

[0362] In order to facilitate the second network device or the third network device to learn the SN or PSCell that the first terminal may access, thereby shortening the delay of processes such as adding / changing the SN / PSCell, in one embodiment, the fifth cell information includes one or more of the following:

[0363] SCG activation status information;

[0364] SCG deactivation status information;

[0365] The moment or duration of SCG activation;

[0366] The time or duration of SCG deactivation;

[0367] The moment or duration of the SCG activation state change;

[0368] The moment or duration when the SCG deactivation state changes.

[0369] Here, the SCG activation state change can be understood as the SCG switching or changing from the activation state to the deactivation state. The SCG deactivation state change can be understood as the SCG switching or changing from the deactivation state to the activation state.

[0370] In order to facilitate the second network device or the third network device to know the time when the first terminal enters the MR-DC or single connection state, so as to shorten the delay of the process of adding / changing the SN / PSCell, in one embodiment, the third information includes one or more of the following:

[0371] An estimated starting time for the first terminal to establish the MR-DC;

[0372] an estimated duration for the first terminal to be in the MR-DC state;

[0373] an estimated time when the first terminal releases the MR-DC;

[0374] an estimated start time when the first terminal enters a single connection state;

[0375] an estimated time when the first terminal enters a single connection state;

[0376] The estimated duration of time that the first terminal is in a single connection state.

[0377] Here, the third information may be the expected duration of time that the first terminal is in the MR-DC state; the third information may be the expected duration of time that the first terminal is in the single connection state; the third information may be the expected starting time when the first terminal establishes MR-DC; the third information may be the expected time when the first terminal releases MR-DC, that is, the time when it enters the single connection state; the third information may include the expected starting time when the first terminal establishes MR-DC, and the expected duration of time that the first terminal is in the MR-DC state; the third information may include the expected starting time when the first terminal establishes MR-DC, and the expected time when the first terminal releases MR-DC; the third information may include the expected starting time when the first terminal enters the single connection state, and the expected duration of time that the first terminal is in the single connection state; the third information may include the expected starting time when the first terminal enters the single connection state, and the expected time when the first terminal establishes MR-DC.

[0378] It should be noted that the duration of being in the MR-DC state can be understood as the duration of the MR-DC state, and the duration of being in the single connection state can be understood as the duration of the single connection state.

[0379] In order to improve the accuracy of the first information, the first information may be predicted using the first model. Based on this, in one embodiment, before predicting the first information using the first model, the method further includes:

[0380] Training the first model based on fourth information, wherein the fourth information represents input information of the first model; and / or

[0381] The first model is modified and / or retrained and / or iteratively updated according to fifth information, where the fifth information represents relevant information of the real or measured movement trajectory of the first terminal.

[0382] Here, the fourth information is training data; the first network device can train the first model based on the fourth information until a set convergence condition is reached. When the fifth information is obtained, the first model can be modified and / or retrained and / or iteratively updated based on the fifth information.

[0383] In order to improve the accuracy of the first information, in one embodiment, the fourth information includes one or more of the following:

[0384] Current PSCell information;

[0385] Historical PSCell related information;

[0386] The PCell and / or PSCell to which the first terminal and / or the second terminal is currently connected, the second terminal representing a terminal different from the first terminal;

[0387] the PCell and / or PSCell to which the first terminal and / or the second terminal is historically connected, the second terminal representing a terminal different from the first terminal;

[0388] The historical movement trajectory of the first terminal and / or the second terminal, where the second terminal represents a terminal different from the first terminal.

[0389] Here, the fourth information may further include terminal history information (UHI, UE history information) / (MHI, mobility history information).

[0390] The PSCell-related information may include one or more of the following: the PSCell identifier, the PSCell list, the average downlink signal quality or average downlink signal strength expected to be achieved when connected to each PSCell, the duration of the connection between the first terminal and each PSCell, the time when the first terminal establishes a connection with each PSCell, and the probability of the first terminal adding each PSCell. The second terminal generally refers to any terminal other than the first terminal.

[0391] The historical movement trajectory can be composed of one or more groups of PCells and PSCells.

[0392] Before training the first model according to the fourth information, it is necessary to first obtain the fourth information. Based on this, the method further includes:

[0393] The fourth information is obtained.

[0394] In order to improve the accuracy and generalization ability of the first model, the fourth information can be obtained in a variety of ways. Based on this, in one embodiment, obtaining the fourth information includes one or more of the following:

[0395] receiving fourth information sent by the first terminal and / or a second terminal, where the second terminal represents a terminal different from the first terminal;

[0396] receiving fourth information reported by one or more fourth network devices;

[0397] A first request is sent to one or more fourth network devices, and fourth information fed back by the one or more fourth network devices is received; the first request is used to request to obtain the fourth information.

[0398] Here, the fourth network device includes one or more of the following:

[0399] Neighboring nodes of the source MN;

[0400] target MN;

[0401] Candidate target MN;

[0402] Source SN;

[0403] Target SN;

[0404] Candidate target SN.

[0405] Among them, the adjacent nodes of the source MN can be understood as the adjacent nodes of the first network device; the source SN can be understood as the current source SN, that is, the third network device; the number of candidate target MNs can be one or more; the candidate target SN can be one or more.

[0406] To facilitate the second network device to measure and feed back relevant information of the real or measured movement trajectory of the first terminal, in one embodiment, the second information includes one or more of the following:

[0407] first configuration information, where the first configuration information is used to indicate whether or not it is necessary to record and / or measure and / or collect and / or feed back the actual or measured movement trajectory of the first terminal or information related to the movement trajectory;

[0408] second configuration information, where the second configuration information is used to instruct recording and / or measurement and / or collection and / or feedback of a real or measured movement trajectory or related information of the movement trajectory of the first terminal;

[0409] third configuration information, where the third configuration information is used to indicate a first condition for starting measurement and / or recording and / or collection and / or feedback of a real movement trajectory of the first terminal;

[0410] Fourth configuration information, where the fourth configuration information is used to indicate a second condition for ending or stopping measuring and / or recording and / or collecting the real movement trajectory of the first terminal;

[0411] Fifth configuration information, where the fifth configuration information is used to instruct recording and / or measurement and / or collection and / or feedback of a real or measured movement trajectory or related information of the movement trajectory of the first terminal within a first time period;

[0412] Sixth configuration information, the sixth configuration information is used to indicate the duration, maximum duration, deadline, or latest time of feedback of the fifth information or the sixth information, the fifth information represents the actual or measured movement trajectory of the first terminal, and the sixth information represents abnormal information that cannot feedback the fifth information; wherein,

[0413] In the absence of the third configuration information or the first condition, it represents that the first terminal starts measuring and / or recording and / or collecting the actual movement trajectory or relevant information of the movement trajectory of the first terminal when entering the range of the second network device.

[0414] Here, the first configuration information can be indicated by a 1-bit value, or by a measurement ID. For example, when the value of the first bit is 1 or true, it indicates that it is necessary to record and / or measure and / or collect and / or feedback the real or measured movement trajectory or related information of the movement trajectory of the first terminal in a single connection state and / or a dual connection state; when the value of the first bit is 0 or false, it indicates that it is not necessary to record and / or measure and / or collect and / or feedback the real or measured movement trajectory or related information of the movement trajectory of the first terminal. For another example, when the value of the first bit is 1 or true, it indicates that it is necessary to record and / or measure and / or collect and / or feedback the real or measured movement trajectory or related information of the movement trajectory of the first terminal in a dual connection state after the first terminal enters a cell within the range of the second network device; when the value of the first bit is 0 or false, it indicates that it is necessary to record and / or measure and / or collect and / or feedback the real or measured movement trajectory or related information of the movement trajectory of the first terminal in a single connection state after the first terminal enters a cell within the range of the second network device. For another example, when the second information includes a measurement ID, it indicates that it is necessary to record and / or measure and / or collect and / or feedback the actual or measured movement trajectory of the first terminal or related information of the movement trajectory; when the second information does not include a measurement ID, it indicates that it is not necessary to record and / or measure and / or collect and / or feedback the actual or measured movement trajectory of the first terminal or related information of the movement trajectory. The movement trajectory or related information of the movement trajectory includes at least the identifier of the PCell and / or PSCell.

[0415] The second configuration information is used to indicate specific information that needs to be recorded and / or measured and / or collected and / or fed back. The second configuration information can be indicated in a bitmap manner, or by setting different bits to 1 or true to indicate the second configuration information.

[0416] The duration, maximum duration, deadline or latest time for feeding back the fifth information or the sixth information can be understood as the moment, latest time, latest moment or maximum time length for feeding back the fifth information or the sixth information.

[0417] The first condition and the second condition can be understood as trigger conditions. The beneficial effect of configuring the first condition and / or the second condition is that it provides the first network device and the second network device with more flexibility, and can only collect relevant information about the real or measured movement trajectory of the first terminal in the MR-DC state in a targeted manner, thereby reducing the amount of data collected or the storage pressure of useless data.

[0418] To improve the flexibility of the second network device in measuring and feeding back information related to the real or measured movement trajectory of the first terminal, in one embodiment, the first configuration information is used to indicate one or more of the following:

[0419] Recording and / or measuring and / or collecting and / or feeding back relevant information of a real or measured movement trajectory of the first terminal in a single connection state after the first terminal successfully accesses or switches to the second network device;

[0420] Recording and / or measuring and / or collecting and / or feeding back relevant information of the real or measured movement trajectory of the first terminal in only the MR-DC state after the first terminal successfully accesses or switches to the second network device;

[0421] Recording and / or measuring and / or collecting and / or feeding back relevant information of the PCell to which the first terminal is connected after successfully accessing or switching to the second network device;

[0422] Recording and / or measuring and / or collecting and / or feeding back relevant information of the PSCell to which the first terminal is connected after successfully accessing or switching to the second network device;

[0423] Record and / or measure and / or collect and / or feedback relevant information of the real or measured movement trajectory of the first terminal in the single connection state and MR-DC state after successfully accessing or switching to the second network device.

[0424] Here, the first terminal successfully accessing the second network device can be described as the first terminal establishing a connection with a cell within the range of the second network device. The first terminal successfully switching to the second network device can be described as the first terminal successfully switching to a cell within the range of the second network device.

[0425] To improve the flexibility of the second network device in measuring and feeding back information related to the real or measured movement trajectory of the first terminal, in one embodiment, the second configuration information is used to instruct the second network device to record and / or measure and / or collect and / or feed back one or more of the following information related to the real or measured movement trajectory of the first terminal:

[0426] PCell related information;

[0427] Information about MCG;

[0428] SN related information;

[0429] PSCell related information;

[0430] Information about SCG;

[0431] The duration of SCG activation;

[0432] The duration of SCG deactivation;

[0433] The time when the first terminal establishes the MR-DC;

[0434] duration of the first terminal being in the MR-DC state;

[0435] The moment when the first terminal releases MR-DC;

[0436] The location information of the first terminal when connected to the PSCell.

[0437] In order to reduce the amount of data collected or the storage pressure of useless data on the second network device, in one embodiment, the first condition includes one or more of the following:

[0438] The first terminal establishes an MR-DC within a range of the second network device;

[0439] The first information does not contain a target PSCell that the first terminal successfully adds or switches to;

[0440] The PSCell for actually establishing the MR-DC by the first terminal does not match the PSCell in the first information;

[0441] At a start time when the first terminal is expected to establish the MR-DC, the first terminal fails to successfully establish the MR-DC;

[0442] The first terminal fails in the MR-DC state;

[0443] The first terminal fails in the MR-DC state and finds the PSCell to restore the SN connection;

[0444] The first terminal fails in the MR-DC state and the SN connection is not restored within a set time period;

[0445] The first terminal successfully switches to the second network device;

[0446] The first terminal establishes a connection with the second network device, or the first terminal successfully accesses the second network device.

[0447] Here, the target PSCell successfully added or switched by the first terminal does not exist in the first information. It can be understood that the target PSCell on which the first terminal successfully performs PSCell addition / change is not in the first information, that is, the cell combination (PCell and PSCell) for actually establishing MR-DC by the first terminal does not match the cell combination in the first information.

[0448] At the expected start time of establishing MR-DC by the first terminal, the first terminal fails to successfully establish MR-DC. The reasons may be: the service or data volume of the first terminal does not require establishing MR-DC, or the first terminal fails to find a suitable PSCell.

[0449] The first terminal experiences a failure in the MR-DC state, which may be one or more of the following: an SCG failure of the first terminal, a PSCell addition failure, a PSCell change failure, or an SCG failure immediately after the first terminal successfully performs a PSCell addition / change. This may include the following situations:

[0450] The first terminal fails in the MR-DC state and finds a suitable PSCell to restore the SN connection;

[0451] The first terminal fails in the MR-DC state and the SN connection is not restored within a set time; for example, the service demand or data volume demand of the first terminal becomes a single connection, or it cannot be restored to MR-DC due to SCG failure.

[0452] The first information does not contain the target PSCell that the first terminal successfully added or switched to, which can be understood as a PSCell addition / change failure.

[0453] In order to reduce the amount of data collected or the storage pressure of useless data on the second network device, in one embodiment, the second condition includes one or more of the following:

[0454] The first terminal fails in the MR-DC state;

[0455] The first terminal fails in the MR-DC state and finds the PSCell to restore the SN connection;

[0456] The first terminal fails in the MR-DC state and the SN connection is not restored within a set time period;

[0457] The first information does not contain a target PSCell that the first terminal successfully adds or switches to;

[0458] The PSCell where the first terminal actually establishes the MR-DC does not match the PSCell in the first information.

[0459] In order to reduce the amount of data collected or the storage pressure of useless data on the second network device, in one embodiment, the fifth configuration information is used to indicate one or more of the following:

[0460] At the start of the first time period, start measuring and / or recording and / or collecting relevant information of the real or measured movement trajectory of the first terminal;

[0461] When the first condition is met, start measuring and / or recording and / or collecting relevant information of the real or measured movement trajectory of the first terminal;

[0462] When the first terminal successfully accesses or switches to the second network device, start measuring and / or recording and / or collecting relevant information of the real or measured movement trajectory of the first terminal;

[0463] When the first time period ends or the first time period expires, stop or end measuring and / or recording and / or collecting relevant information of the real or measured movement trajectory of the first terminal;

[0464] When the first time period ends or expires, information related to the real or measured movement trajectory of the first terminal is sent to or fed back to the first network device.

[0465] Here, the starting time of the first time period includes the time when the first condition is met and / or the time when the first terminal successfully accesses or switches to the second network device.

[0466] In order to obtain relevant information about the actual or measured movement trajectory of the first terminal in the MR-DC scenario, so as to update or optimize the movement trajectory prediction information of the first terminal in the MR-DC scenario, thereby improving the accuracy of the movement trajectory prediction information for the first terminal in the MR-DC scenario, in one embodiment, after sending the second information to one or more second network devices, the method further includes:

[0467] Receive fifth information or sixth information sent by one or more second network devices based on the second information, where the fifth information represents relevant information of the real or measured movement trajectory of the first terminal, and the sixth information represents abnormal information that the fifth information cannot be fed back.

[0468] In order to obtain more accurate information related to the actual movement trajectory of the first terminal in the MR-DC scenario, in one embodiment, the fifth information includes one or more of the following:

[0469] A first condition for starting measurement and / or recording and / or collection of a real movement trajectory of the first terminal;

[0470] A second condition for ending or stopping measuring and / or recording and / or collecting the real movement trajectory of the first terminal;

[0471] seventh information, where the seventh information represents a reason or related information why the actual state of the first terminal does not match the movement trajectory prediction information represented by the first information;

[0472] PCell's logo;

[0473] a dwell time of the first terminal in the PCell;

[0474] The identifiers of the cells included in the MCG;

[0475] The duration that each cell included in the MCG serves as a serving cell;

[0476] SN logo;

[0477] PSell's logo;

[0478] an average downlink signal quality or average downlink signal strength that can be achieved when the first terminal is connected to the SN;

[0479] The duration of the connection between the first terminal and the SN;

[0480] an average downlink signal quality or average downlink signal strength achievable by the first terminal when connected to the PSell;

[0481] a duration during which the first terminal maintains a connection with the PSell;

[0482] The identity of the cell included in the SCG;

[0483] The duration that each cell included in the SCG serves as a serving cell;

[0484] The moment or duration of SCG activation;

[0485] The time or duration of SCG deactivation;

[0486] The time when the first terminal establishes the MR-DC within a first time period, where the first time period represents a time period for measuring or collecting the movement trajectory of the first terminal;

[0487] a duration during which the first terminal is in the MR-DC state within a first time period, where the first time period represents a time period for measuring or collecting a movement trajectory of the first terminal;

[0488] a time when the first terminal releases the MR-DC within a first time period, where the first time period represents a time period for measuring or collecting a movement trajectory of the first terminal;

[0489] The average data volume of the first terminal in a first time period, where the first time period represents a time period for measuring or collecting the movement trajectory of the first terminal.

[0490] Here, the identifier of the PCell may be the identifier of one or more PCells. The PCell may include one or more PCells within the range of the next-hop or multi-hop second network device, and may be provided in the form of a cell list, where the cell IDs in the cell list are arranged in the order in which the first terminal actually reaches / connects to the PCells.

[0491] MCG can be one or more MCGs, and the Celllist corresponding to each MCG can be given according to the changes in PCell; a Celllist contains the identifiers of the cells included in an MCG, and / or the duration of each cell serving as a serving cell.

[0492] SCG can be one or more SCGs, and the Celllist corresponding to each SCG can be given according to the changes in PSCell; a Celllist contains the identifiers of the cells included in an SCG, and / or the duration of each cell serving as a serving cell.

[0493] One or more SNs may be arranged in sequence according to the change order of the PCell.

[0494] In order to facilitate the first network device to learn the reason why the actual state of the first terminal does not match the movement trajectory prediction information represented by the first information, in one embodiment, the seventh information includes one or more of the following:

[0495] The first information does not contain a target PSCell that the first terminal successfully adds or switches to;

[0496] The PSCell for actually establishing the MR-DC by the first terminal does not match the PSCell in the first information;

[0497] Measurement information related to a target PSCell successfully added or switched by the first terminal;

[0498] A start time of a target PSCell successfully added or switched by the first terminal;

[0499] A retention duration of a target PSCell successfully added or switched by the first terminal;

[0500] location information of the first terminal when the first terminal successfully adds or switches to a target PSCell;

[0501] No PSCells were measured;

[0502] No PSCell was found that could be used to establish or restore the SN connection;

[0503] The service or data volume of the first terminal does not require the establishment of an MR-DC;

[0504] an identifier of a PSCell in which the first terminal fails in the MR-DC state;

[0505] The identifier of the PSCell used to restore the SN connection;

[0506] PSCell-related measurement information used to restore SN connection;

[0507] The starting time when the first terminal is connected to the PSCell used to restore the SN connection;

[0508] The duration for which the first terminal is connected to the PSCell used to restore the SN connection;

[0509] The location information of the first terminal when the first terminal is connected to the PSCell used to restore the SN connection.

[0510] Here, the first terminal fails in the MR-DC state, which may be SCG failure, PSCell addition failure, or PSCell switching or change failure.

[0511] In order to facilitate the first network device to quickly learn whether the second network device can feedback the fifth information and the specific reason why the second network device cannot feedback the fifth information, in one embodiment, the sixth information includes one or more of the following:

[0512] Abnormal indication information, where the abnormal indication information is used to indicate a sending error or failure of the second network device, and / or is used to indicate that complete fifth information cannot be obtained by measuring according to the fourth information;

[0513] Exception reason value.

[0514] Here, the abnormal indication information may indicate that the measurement of the fifth information is abnormal, or the second network device cannot measure / record / collect the fifth information due to abnormal conditions such as errors and / or failures, or cannot obtain complete fifth information according to the configuration measurement indicated by the second information.

[0515] The abnormality cause value can be understood as abnormality cause information. The abnormality indication information can be carried in a setting information element (IE) or a corresponding bit in a setting IE.

[0516] In order to facilitate the first network device to quickly learn the specific reason why the second network device cannot feedback the fifth information, in one embodiment, the abnormality cause value is used to indicate one or more of the following:

[0517] No PSCells were measured;

[0518] No PSCell was found that could be used to establish or restore the SN connection;

[0519] The service or data volume of the first terminal does not require the establishment of an MR-DC;

[0520] The reason why the first terminal fails to establish the MR-DC;

[0521] a reason why the first terminal fails in the MR-DC state;

[0522] The reason why the first terminal fails to restore the SN connection after sending fails in the MR-DC state;

[0523] Here, the reason why the first terminal fails to establish MR-DC may be one or more of the following: the PSCell is not measured, the service or data volume of the first terminal does not require the establishment of MR-DC, the PSCell that can be used to establish or restore the SN connection is not found, and the PSCell where the first terminal actually establishes MR-DC does not match the PSCell in the first information.

[0524] In order to save resources of the network device, in one embodiment, the method further includes:

[0525] When the sixth information is received, the context or configuration information of the first terminal is released.

[0526] Here, when the first network device receives the sixth information sent by any second network device, it indicates that the second network device cannot feedback the fifth information, and the first network device no longer expects to receive the fifth information from the second network device, and can release the context or configuration information of the first terminal to save resources.

[0527] Correspondingly, the embodiment of the present application also provides a terminal mobility enhancement method, which is applied to a third network device. The third network device can be a source node and can include a source SN and / or a source MN. When the first network device is the source MN, the third network device can be the source SN. When the first terminal switches from the second network device to the second network device, the third network device can be the source MN or the source SN. Figure 3 As shown, the method includes:

[0528] Step 301: Obtain first information, and / or send first information to a first network device; wherein,

[0529] The first information represents movement trajectory prediction information for the first terminal in the MR-DC scenario.

[0530] To improve the flexibility of obtaining the first information, in one embodiment, obtaining the first information includes one or more of the following:

[0531] Generate first information, where the first information is movement trajectory prediction information of the first terminal in an MR-DC scenario for the first network device and / or the third network device;

[0532] receiving first information sent by a first network device; the first information including movement trajectory prediction information of the first terminal in an MR-DC scenario for the second network device, and / or movement trajectory prediction information of the first terminal in an MR-DC scenario for the first network device and / or a third network device;

[0533] The first information is predicted by the second model; the first information includes movement trajectory prediction information of the first terminal in the MR-DC scenario for the first network device and / or the third network device.

[0534] Here, the second model can be an AI model or an ML model, and the second model can be understood as a model that has completed training, or a model that has reached the set convergence conditions. The second model can be trained by the first network device, the third network device or the OAM, and the second model can also be trained by other network elements or network functions independent of the first network device and / or the third network device and / or the OAM. The second model is trained based on relevant information of the historical movement trajectory of one or more terminals, and / or relevant information of the current movement trajectory of one or more terminals; the movement trajectory can be composed of PCell and / or PSCell and / or SN. The second model is used to predict the first information. The second model can be the same as the first model, and the training method of the second model is the same as the training method of the first model.

[0535] It should be noted that the first information sent by the first network device includes one or more of the following:

[0536] First cell information, where the first cell information represents relevant information of the PCell;

[0537] Second cell information, where the second cell information represents relevant information of the PSCell and / or SN;

[0538] Third cell information, where the third cell information represents relevant information of the MCG;

[0539] Fourth cell information, where the fourth cell information represents relevant information of the SCG;

[0540] Fifth cell information, where the fifth cell information represents relevant information about an SCG activation state or a deactivation state;

[0541] third information, where the third information is used to indicate a time during which the first terminal is in a single connection state or an MR-DC state;

[0542] The data volume of the first terminal.

[0543] The first cell information includes at least one or more of the following:

[0544] Identifications of one or more PCells of a second network device that is a next hop or multiple hops from the first network device;

[0545] Identifiers of one or more PCells of the first network device;

[0546] Identifications of one or more PCells of the third network device.

[0547] The second cell information includes one or more of the following:

[0548] PSCell's logo;

[0549] PSCell list;

[0550] SN logo;

[0551] SN list;

[0552] The expected average downlink signal quality or average downlink signal strength when connected to each PSCell;

[0553] The expected average downlink signal quality or average downlink signal strength when connected to each SN;

[0554] a duration for which the first terminal maintains a connection with each PSCell;

[0555] The time when the first terminal establishes a connection with each PSCell;

[0556] a probability of the first terminal adding each PSCell;

[0557] The duration of the connection between the first terminal and each SN;

[0558] The time when the first terminal establishes a connection with each SN;

[0559] The probability of the first terminal adding each SN.

[0560] The third cell information includes: the identifiers of the cells included in the MCG, and / or the duration of each cell included in the MCG serving as a serving cell.

[0561] The fourth cell information includes: identifiers of cells included in the SCG, and / or the duration of time that each cell included in the SCG serves as a serving cell.

[0562] The fifth cell information includes one or more of the following:

[0563] SCG activation status information;

[0564] SCG deactivation status information;

[0565] The moment or duration of SCG activation;

[0566] The time or duration of SCG deactivation;

[0567] The moment or duration of the SCG activation state change;

[0568] The moment or duration when the SCG deactivation state changes.

[0569] The third information includes one or more of the following:

[0570] An estimated starting time for the first terminal to establish the MR-DC;

[0571] an estimated duration for the first terminal to be in the MR-DC state;

[0572] an estimated time when the first terminal releases the MR-DC;

[0573] an estimated start time when the first terminal enters a single connection state;

[0574] an estimated time when the first terminal enters a single connection state;

[0575] The estimated duration of time that the first terminal is in a single connection state.

[0576] It should be noted that the third network device generates the first information including one or more of the following:

[0577] First cell information, where the first cell information represents relevant information of the PCell; the first cell information includes at least identifiers of one or more PCells of the first network device and / or identifiers of one or more PCells of the third network device;

[0578] Second cell information, where the second cell information represents relevant information of the PSCell and / or SN;

[0579] Fourth cell information, where the fourth cell information represents relevant information of the SCG;

[0580] The fifth cell information represents relevant information of the SCG activation state or deactivation state.

[0581] In order to improve the accuracy of the first information, the first information may be predicted by the second model. Based on this, in one embodiment, before predicting the first information by the second model, the method further includes:

[0582] The second model is trained based on fourth information, where the fourth information represents input information of the second model.

[0583] Here, the third network device may obtain the fourth information in one or more of the following ways:

[0584] receiving fourth information sent by the first terminal and / or a second terminal, where the second terminal represents a terminal different from the first terminal;

[0585] receiving fourth information reported by one or more fourth network devices;

[0586] A first request is sent to one or more fourth network devices, and fourth information fed back by the one or more fourth network devices is received; the first request is used to request to obtain the fourth information.

[0587] The fourth information includes one or more of the following:

[0588] Current PSCell information;

[0589] Historical PSCell related information;

[0590] The PCell and / or PSCell to which the first terminal and / or the second terminal is currently connected, the second terminal representing a terminal different from the first terminal;

[0591] the PCell and / or PSCell to which the first terminal and / or the second terminal is historically connected, the second terminal representing a terminal different from the first terminal;

[0592] The historical movement trajectory of the first terminal and / or the second terminal, where the second terminal represents a terminal different from the first terminal.

[0593] In order to shorten the delay of the process of adding / changing the SN / PSCell and reduce or avoid unnecessary PSCell preparation work performed by the third network device, in one embodiment, the method further includes:

[0594] A first operation is performed according to the first information, where the first operation represents preparation or preprocessing operations related to adding, changing, activating, or deactivating SN and / or PSCell.

[0595] In order to shorten the delay of the process of adding / changing the SN / PSCell and reduce or avoid unnecessary PSCell preparation work performed by the third network device, in one embodiment, the first operation includes one or more of the following:

[0596] Determining whether to configure MR-DC for the first terminal;

[0597] Select candidate PSCells;

[0598] Allocate candidate SN reserved resources;

[0599] Determining a time to configure MR-DC for the first terminal;

[0600] Configuring or pre-configuring transmission resources in an MR-DC scenario for the first terminal;

[0601] Adjust the transmission resources in the MR-DC scenario configured for the first terminal.

[0602] Here, the candidate SN reserved resources may be described as the reserved resources of the candidate PSCell, or the resources reserved for the candidate PSCell.

[0603] The third network device can determine whether it is necessary to configure MR-DC for the first terminal and when to configure MR-DC based on the first information. For example, if any of the following items is greater than or equal to the corresponding threshold, the first terminal has a greater demand for dual-connection transmission, and MR-DC is configured for the first terminal: the duration of SCG activation, the duration of SCG deactivation, the duration of each cell included in the MCG as a service cell, the duration of each cell included in the SCG as a service cell, and the duration of the first terminal in the MR-DC state. In the case where the first terminal has a smaller demand for dual-connection transmission, it is possible to consider reducing the transmission resources configured for the first terminal in the MR-DC scenario.

[0604] When the third network device determines that an MR-DC needs to be configured for the first terminal, it can select a candidate SN using relevant information of the predicted PCell and PScell ​​combination, as well as information such as the average downlink signal quality or average downlink signal strength that is expected to be achieved when the first terminal is connected to the SN or PScell. For example, if a certain PSCell is in the first information and the downlink signal measurement quality of the first terminal in the PSCell meets the downlink signal measurement quality requirements of the first information, the third network device determines that the PScell ​​is suitable for dual-connection transmission as a secondary cell, and uses the node to which the PSCell belongs as a candidate SN, and sends an SN Addition Request message to the candidate SN for SN resource reservation; if a certain PSCell is not the PSCell in the first information or the downlink signal quality of the first terminal in the PSCell does not meet the downlink signal measurement quality requirements, the third network device determines that the PScell ​​is not suitable as a secondary cell and does not need to prepare the PScell.

[0605] The third network device may determine the time to configure the MR-DC for the first terminal according to the expected start time of establishing the MR-DC by the first terminal.

[0606] Correspondingly, the embodiment of the present application also provides a terminal mobility enhancement method, which is applied to a second network device, the second network device is a target node, and may include a target MN and / or a target SN; the target node may be a base station. Figure 3 As shown, the method includes:

[0607] Step 401: Receive first information and / or second information sent by a first network device, where the first information represents mobile trajectory prediction information for a first terminal in an MR-DC scenario, and the second information represents relevant configuration or signaling for collecting or obtaining a real or measured mobile trajectory of the first terminal.

[0608] In order to obtain real or measured movement trajectory prediction information of the first terminal in the MR-DC scenario, in one embodiment, the method further includes:

[0609] A second operation is performed according to the second information.

[0610] To improve the flexibility of the second network device in measuring and feeding back information related to the real or measured movement trajectory of the first terminal, in one embodiment, the second operation includes one or more of the following:

[0611] Initiate measurement and / or record relevant information of the real or measured movement trajectory of the first terminal;

[0612] Stop measuring and / or recording relevant information of the real or measured movement trajectory of the first terminal;

[0613] Sending or feeding back fifth information or sixth information to the first network device, where the fifth information represents relevant information about the actual or measured movement trajectory of the first terminal, and the sixth information represents abnormal information that the fifth information cannot be fed back;

[0614] Sending eighth information to the fifth network device, where the eighth information represents relevant configuration or signaling for recording and / or measuring and / or collecting and / or feeding back the real or measured movement trajectory of the first terminal;

[0615] Receive fifth information or ninth information sent by the fifth network device according to the eighth information, where the fifth information represents relevant information of the real or measured movement trajectory of the first terminal, and the ninth information represents abnormal information that the fifth information cannot be fed back.

[0616] Here, the fifth network device may include a target SN and / or a candidate target SN and / or a candidate target MN. The eighth information may be obtained based on the second information or may be the same as the second information. For example, the second network device sends the eighth information to the fifth network device based on the second information, or the second network device forwards the second information to the fifth network device.

[0617] To facilitate the fifth network device to measure and feed back relevant information of the real or measured movement trajectory of the first terminal, in one embodiment, the eighth information includes one or more of the following:

[0618] Seventh configuration information, where the seventh configuration information is used to indicate whether or not it is necessary to record and / or measure and / or collect and / or feed back the actual or measured movement trajectory of the first terminal or information related to the movement trajectory;

[0619] Eighth configuration information, where the eighth configuration information is used to instruct recording and / or measurement and / or collection and / or feedback of a real or measured movement trajectory or related information of the movement trajectory of the first terminal;

[0620] Ninth configuration information, the ninth configuration information is used to instruct recording and / or measurement and / or collection and / or feedback of the actual or measured movement trajectory or related information of the movement trajectory of the first terminal in the second time period.

[0621] Here, the seventh configuration information is used to indicate one or more of the following:

[0622] Recording and / or measuring and / or collecting and / or feeding back relevant information of a real or measured movement trajectory of the first terminal in a single connection state after the first terminal successfully accesses or switches to the fifth network device;

[0623] Recording and / or measuring and / or collecting and / or feeding back relevant information of a real or measured movement trajectory of the first terminal in only the MR-DC state after the first terminal successfully accesses or switches to the fifth network device;

[0624] Recording and / or measuring and / or collecting and / or feeding back relevant information of the PCell to which the first terminal is connected after successfully accessing or switching to the fifth network device;

[0625] Record and / or measure and / or collect and / or feedback relevant information of the PSCell to which the first terminal is connected after successfully accessing or switching to the fifth network device;

[0626] Record and / or measure and / or collect and / or feedback relevant information of the real or measured movement trajectory of the first terminal in the single connection state and the MR-DC state after successfully accessing or switching to the fifth network device.

[0627] The eighth configuration information may be understood as indicating specific content of recording and / or measurement and / or collection and / or feedback.

[0628] To improve the flexibility of the fifth network device in measuring and feeding back information related to the real or measured movement trajectory of the first terminal, in one embodiment, the eighth configuration information is used to instruct the fifth network device to record and / or measure and / or collect and / or feed back one or more of the following information of the first terminal in the MR-DC state:

[0629] PSell related information;

[0630] Information about SCG;

[0631] SN related information;

[0632] The duration of SCG activation;

[0633] The duration of SCG deactivation;

[0634] The time when the first terminal establishes the MR-DC;

[0635] duration of the first terminal being in the MR-DC state;

[0636] The moment when the first terminal releases MR-DC;

[0637] A performance indicator of the first terminal within the range of the fourth network device.

[0638] In order to reduce the amount of data collected or the storage pressure of useless data on the fifth network device, in one embodiment, the ninth configuration information is used to indicate one or more of the following:

[0639] The starting time of the second time period is the time when the first terminal establishes a connection with the target SN;

[0640] At a start time of the second time period, start measuring and / or recording and / or collecting relevant information of the real or measured movement trajectory of the first terminal;

[0641] When the end moment of the second time period is reached or the second time period expires, stopping or ending the measurement and / or recording and / or recording relevant information of the real or measured movement trajectory of the first terminal;

[0642] When the second time period ends or expires, information related to the real or measured movement trajectory of the first terminal is sent to or fed back to the first network device.

[0643] Here, the second time period may be different from the first time period. The start time and end time of the second time period may be configured in the ninth configuration information. The second time period may also be understood as a time length.

[0644] In order to shorten the delay of the process of adding / changing the SN / PSCell and reduce or avoid unnecessary PSCell preparation work performed by the second network device, in one embodiment, the method further includes:

[0645] A first operation is performed according to the first information, where the first operation represents preparation or preprocessing operations related to adding, changing, activating, or deactivating SN and / or PSCell.

[0646] In order to shorten the delay of the process of adding / changing the SN / PSCell and reduce or avoid unnecessary PSCell preparation work performed by the second network device, in one embodiment, the first operation includes one or more of the following:

[0647] Determining whether to configure MR-DC for the first terminal;

[0648] Select a candidate SN;

[0649] Instructing the candidate SN to reserve resources for the first terminal;

[0650] Determining a time to configure MR-DC for the first terminal;

[0651] Configuring or pre-configuring transmission resources in an MR-DC scenario for the first terminal;

[0652] Adjusting transmission resources in the MR-DC scenario configured for the first terminal;

[0653] Determine the time to activate SN;

[0654] Activate SN in advance;

[0655] Determine when to activate the PSCell;

[0656] Activate PSCell in advance;

[0657] Determine the time to deactivate the SN;

[0658] Determine when to deactivate the PSCell.

[0659] Here, the candidate SN is a resource reserved for the first terminal, which can be understood as a candidate SN reserved resource.

[0660] The second network device can determine whether it is necessary to configure MR-DC for the first terminal and when to configure MR-DC based on the first information. For example, if any of the following items is greater than or equal to the corresponding threshold, the first terminal has a greater demand for dual-connection transmission, and MR-DC is configured for the first terminal: the amount of data of the first terminal, the duration of SCG activation, the duration of SCG deactivation, the duration of each cell included in the MCG as a service cell, the duration of each cell included in the SCG as a service cell, and the duration of the first terminal in the MR-DC state. In the case where the first terminal has a smaller demand for dual-connection transmission, it is possible to consider reducing the transmission resources configured for the first terminal in the MR-DC scenario.

[0661] When the second network device determines that an MR-DC needs to be configured for the first terminal, it can select a candidate SN using relevant information of the predicted PCell and PScell ​​combination, as well as information such as the average downlink signal quality or average downlink signal strength that is expected to be achieved when the first terminal is connected to the SN or PScell. For example, if a certain PSCell is in the first information and the downlink signal measurement quality of the first terminal in the PSCell meets the downlink signal measurement quality requirements of the first information, the second network device determines that the PScell ​​is suitable for dual-connection transmission as a secondary cell, and uses the node to which the PSCell belongs as a candidate SN, and sends an SN Addition Request message to the candidate SN for SN resource reservation; if a certain PSCell is not the PSCell in the first information or the downlink signal quality of the first terminal in the PSCell does not meet the downlink signal measurement quality requirements, the third network device determines that the PScell ​​is not suitable as a secondary cell and there is no need to prepare the PScell.

[0662] The present application will be described in further detail below in conjunction with application examples.

[0663] like Figure 5 As shown, the terminal mobility enhancement method includes:

[0664] Step 1: A first network device obtains first information.

[0665] Here, the first network device may be a source node or a source MN. The first network device obtains the first information, including one or more of the following:

[0666] Generate first information; the first information includes movement trajectory prediction information of the first terminal in the MR-DC scenario for the second network device, and / or movement trajectory prediction information of the first terminal in the MR-DC scenario for the first network device and / or the third network device;

[0667] Predicting first information using the first model; the first information includes movement trajectory prediction information of the first terminal in an MR-DC scenario for the second network device, and / or movement trajectory prediction information of the first terminal in an MR-DC scenario for the first network device and / or a third network device;

[0668] First information sent by a third network device is received, where the first information is movement trajectory prediction information of the first terminal in an MR-DC scenario for the first network device and / or the third network device.

[0669] The first information sent by the third network device can be predicted by the second model. The third network device can be the source SN. The first model and the second model can both be AI models or ML models. The first model and the second model are trained using the fourth information.

[0670] Ways of obtaining the fourth information may include one or more of the following:

[0671] receiving fourth information sent by the first terminal and / or the second terminal, where the second terminal represents a terminal different from the first terminal;

[0672] receiving fourth information reported by one or more fourth network devices;

[0673] A first request is sent to one or more fourth network devices, and fourth information fed back by the one or more fourth network devices is received; the first request is used to request to obtain the fourth information.

[0674] The fourth network device includes one or more of the following: adjacent nodes of the source MN, adjacent nodes of the first network device, target MN, candidate target MN, source SN, target SN, candidate target SN. The fourth information includes one or more of the following:

[0675] Current PSCell information;

[0676] Historical PSCell related information;

[0677] The PCell and / or PSCell to which the first terminal and / or the second terminal is currently connected, the second terminal representing a terminal different from the first terminal;

[0678] the PCell and / or PSCell to which the first terminal and / or the second terminal is historically connected, the second terminal representing a terminal different from the first terminal;

[0679] The historical movement trajectory of the first terminal and / or the second terminal, where the second terminal represents a terminal different from the first terminal.

[0680] In one embodiment, the first information includes one or more of the following:

[0681] First cell information, where the first cell information represents relevant information of the PCell;

[0682] Second cell information, where the second cell information represents relevant information of the PSCell and / or SN;

[0683] Third cell information, the third cell information represents relevant information of the MCG;

[0684] Fourth cell information, the fourth cell information represents relevant information of the SCG;

[0685] Fifth cell information, where the fifth cell information represents relevant information about the SCG activation state or deactivation state;

[0686] third information, where the third information is used to indicate a time during which the first terminal is in a single connection state or an MR-DC state;

[0687] The data volume of the first terminal.

[0688] The first cell information includes at least one or more of the following:

[0689] Identifications of one or more PCells of a second network device that is a next hop or multiple hops from the first network device;

[0690] Identifiers of one or more PCells of the first network device;

[0691] Identifications of one or more PCells of the third network device.

[0692] The second cell information includes one or more of the following:

[0693] PSCell's logo;

[0694] PSCell list;

[0695] SN logo;

[0696] SN list;

[0697] The expected average downlink signal quality or average downlink signal strength when connected to each PSCell;

[0698] The expected average downlink signal quality or average downlink signal strength when connected to each SN;

[0699] a duration for which the first terminal maintains a connection with each PSCell;

[0700] The time when the first terminal establishes a connection with each PSCell;

[0701] a probability of the first terminal adding each PSCell;

[0702] The duration of the connection between the first terminal and each SN;

[0703] The time when the first terminal establishes a connection with each SN;

[0704] The probability of the first terminal adding each SN.

[0705] The third cell information includes:

[0706] The identity of the cell included in the MCG; and / or

[0707] The duration that each cell included in the MCG serves as a serving cell.

[0708] The fourth cell information includes:

[0709] The identity of the cell contained in the SCG; and / or

[0710] The duration during which each cell included in the SCG serves as a serving cell.

[0711] The fifth cell information includes one or more of the following:

[0712] SCG activation status information;

[0713] SCG deactivation status information;

[0714] The moment or duration of SCG activation;

[0715] The time or duration of SCG deactivation;

[0716] The moment or duration of the SCG activation state change;

[0717] The moment or duration when the SCG deactivation state changes.

[0718] The third information includes one or more of the following:

[0719] An estimated starting time for the first terminal to establish the MR-DC;

[0720] an estimated duration for the first terminal to be in the MR-DC state;

[0721] an estimated time when the first terminal releases the MR-DC;

[0722] an estimated start time when the first terminal enters a single connection state;

[0723] an estimated time when the first terminal enters a single connection state;

[0724] The estimated duration of time that the first terminal is in a single connection state.

[0725] Step 2: The first network device sends the first information to the second network device, and / or the first network device sends the first information to the third network device.

[0726] Here, upon obtaining the first information, the first network device sends the first information to the second network device. Upon generating the first information and / or predicting the first information using the first model, the first network device sends the first information to the third network device. The second network device is a target node or a candidate target node.

[0727] Step 3: The third network device performs a first operation according to the first information.

[0728] Here, the third network device may be a source SN; the first operation represents preparation or pre-processing operations related to adding, changing, activating, or deactivating an SN and / or PSCell.

[0729] The first operation performed by the third network device includes one or more of the following:

[0730] Determining whether to configure MR-DC for the first terminal;

[0731] Select candidate PSCells;

[0732] Allocate candidate SN reserved resources;

[0733] Determining a time to configure MR-DC for the first terminal;

[0734] Configuring or pre-configuring transmission resources in an MR-DC scenario for the first terminal;

[0735] Adjust the transmission resources in the MR-DC scenario configured for the first terminal.

[0736] Step 4: The second network device performs a first operation according to the first information, where the first operation represents a preparation or pre-processing operation related to adding, changing, activating, or deactivating an SN and / or PSCell.

[0737] Here, the first operation performed by the second network device includes one or more of the following:

[0738] Determining whether to configure MR-DC for the first terminal;

[0739] Select a candidate SN;

[0740] Instructing the candidate SN to reserve resources for the first terminal;

[0741] Determining a time to configure MR-DC for the first terminal;

[0742] Configuring or pre-configuring transmission resources in an MR-DC scenario for the first terminal;

[0743] Adjusting transmission resources in the MR-DC scenario configured for the first terminal;

[0744] Determine the time to activate SN;

[0745] Activate SN in advance;

[0746] Determine when to activate the PSCell;

[0747] Activate PSCell in advance;

[0748] Determine the time to deactivate the SN;

[0749] Determine when to deactivate the PSCell.

[0750] Step 5: The first network device sends second information to the second network device, where the second information represents relevant configuration or signaling for collecting or acquiring the real or measured movement trajectory of the first terminal.

[0751] Here, the second information includes one or more of the following:

[0752] first configuration information, where the first configuration information is used to indicate whether or not it is necessary to record and / or measure and / or collect and / or feed back the actual or measured movement trajectory of the first terminal or information related to the movement trajectory;

[0753] second configuration information, where the second configuration information is used to instruct recording and / or measurement and / or collection and / or feedback of a real or measured movement trajectory or related information of the movement trajectory of the first terminal;

[0754] third configuration information, where the third configuration information is used to indicate a first condition for starting measurement and / or recording and / or collection and / or feedback of a real movement trajectory of the first terminal;

[0755] Fourth configuration information, where the fourth configuration information is used to indicate a second condition for ending or stopping measuring and / or recording and / or collecting the real movement trajectory of the first terminal;

[0756] Fifth configuration information, where the fifth configuration information is used to instruct recording and / or measurement and / or collection and / or feedback of a real or measured movement trajectory or related information of the movement trajectory of the first terminal within a first time period;

[0757] Sixth configuration information, the sixth configuration information is used to indicate the duration, maximum duration, deadline, or latest time of feedback of the fifth information or the sixth information, the fifth information represents the actual or measured movement trajectory of the first terminal, and the sixth information represents abnormal information that cannot feedback the fifth information; wherein,

[0758] In the absence of the third configuration information or the first condition, it represents that the first terminal starts measuring and / or recording and / or collecting the actual movement trajectory or relevant information of the movement trajectory of the first terminal when entering the range of the second network device.

[0759] In one embodiment, the first configuration information is used to indicate one or more of the following:

[0760] Recording and / or measuring and / or collecting and / or feeding back relevant information of a real or measured movement trajectory of the first terminal in a single connection state after the first terminal successfully accesses or switches to the second network device;

[0761] Recording and / or measuring and / or collecting and / or feeding back relevant information of the real or measured movement trajectory of the first terminal in only the MR-DC state after the first terminal successfully accesses or switches to the second network device;

[0762] Recording and / or measuring and / or collecting and / or feeding back relevant information of the PCell to which the first terminal is connected after successfully accessing or switching to the second network device;

[0763] Recording and / or measuring and / or collecting and / or feeding back relevant information of the PSCell to which the first terminal is connected after successfully accessing or switching to the second network device;

[0764] Record and / or measure and / or collect and / or feedback relevant information of the real or measured movement trajectory of the first terminal in the single connection state and MR-DC state after successfully accessing or switching to the second network device.

[0765] In one embodiment, the second configuration information is used to instruct the second network device to record and / or measure and / or collect and / or feedback one or more of the following information related to the real or measured movement trajectory of the first terminal:

[0766] PCell related information;

[0767] Information about MCG;

[0768] SN related information;

[0769] PSCell related information;

[0770] Information about SCG;

[0771] The duration of SCG activation;

[0772] The duration of SCG deactivation;

[0773] The time when the first terminal establishes the MR-DC;

[0774] duration of the first terminal being in the MR-DC state;

[0775] The moment when the first terminal releases MR-DC;

[0776] The location information of the first terminal when connected to the PSCell.

[0777] In one embodiment, the first condition includes one or more of the following:

[0778] The first terminal establishes an MR-DC within a range of the second network device;

[0779] The first information does not contain a target PSCell that the first terminal successfully adds or switches to;

[0780] The PSCell for actually establishing the MR-DC by the first terminal does not match the PSCell in the first information;

[0781] At a start time when the first terminal is expected to establish the MR-DC, the first terminal fails to successfully establish the MR-DC;

[0782] The first terminal fails in the MR-DC state;

[0783] The first terminal fails in the MR-DC state and finds the PSCell to restore the SN connection;

[0784] The first terminal fails in the MR-DC state and the SN connection is not restored within a set time period;

[0785] The first terminal successfully switches to the second network device;

[0786] The first terminal establishes a connection with the second network device, or the first terminal successfully accesses the second network device.

[0787] In one embodiment, the second condition includes one or more of the following:

[0788] The first terminal fails in the MR-DC state;

[0789] The first terminal fails in the MR-DC state and finds the PSCell to restore the SN connection;

[0790] The first terminal fails in the MR-DC state and the SN connection is not restored within a set time period;

[0791] The first information does not contain a target PSCell that the first terminal successfully adds or switches to;

[0792] The PSCell where the first terminal actually establishes the MR-DC does not match the PSCell in the first information.

[0793] In one embodiment, the fifth configuration information is used to indicate one or more of the following:

[0794] At the start of the first time period, start measuring and / or recording and / or collecting relevant information of the real or measured movement trajectory of the first terminal;

[0795] When the first condition is met, start measuring and / or recording and / or collecting relevant information of the real or measured movement trajectory of the first terminal;

[0796] When the first terminal successfully accesses or switches to the second network device, start measuring and / or recording and / or collecting relevant information of the real or measured movement trajectory of the first terminal;

[0797] When the first time period ends or the first time period expires, stop or end measuring and / or recording and / or collecting relevant information of the real or measured movement trajectory of the first terminal;

[0798] When the first time period ends or expires, information related to the real or measured movement trajectory of the first terminal is sent to or fed back to the first network device.

[0799] Step 6: The second network device receives the second information and performs a second operation according to the second information.

[0800] Here, the second operation includes one or more of the following:

[0801] Initiate measurement and / or recording of information related to the actual or measured movement trajectory of the first terminal;

[0802] Stop measuring and / or recording relevant information of the actual or measured movement trajectory of the first terminal;

[0803] Sending or feeding back fifth information or sixth information to the first network device, where the fifth information represents relevant information about the actual or measured movement trajectory of the first terminal, and the sixth information represents abnormal information that the fifth information cannot be fed back;

[0804] Sending eighth information to the fifth network device, where the eighth information represents relevant configuration or signaling for recording and / or measuring and / or collecting and / or feeding back the real or measured movement trajectory of the first terminal;

[0805] Receive fifth information or ninth information sent by the fifth network device based on the eighth information, where the fifth information represents relevant information of the real or measured movement trajectory of the first terminal, and the ninth information represents abnormal information that the fifth information cannot be fed back.

[0806] The eighth information includes one or more of the following:

[0807] Seventh configuration information, where the seventh configuration information is used to indicate whether or not it is necessary to record and / or measure and / or collect and / or feed back the actual or measured movement trajectory of the first terminal or information related to the movement trajectory;

[0808] Eighth configuration information, where the eighth configuration information is used to instruct recording and / or measurement and / or collection and / or feedback of a real or measured movement trajectory or related information of the movement trajectory of the first terminal;

[0809] Ninth configuration information, the ninth configuration information is used to instruct recording and / or measurement and / or collection and / or feedback of the actual or measured movement trajectory or related information of the movement trajectory of the first terminal in the second time period.

[0810] The eighth configuration information is used to instruct the fifth network device to record and / or measure and / or collect and / or feedback one or more of the following information of the first terminal in the MR-DC state:

[0811] PSell related information;

[0812] Information about SCG;

[0813] SN related information;

[0814] The duration of SCG activation;

[0815] The duration of SCG deactivation;

[0816] The time when the first terminal establishes the MR-DC;

[0817] duration of the first terminal being in the MR-DC state;

[0818] The moment when the first terminal releases MR-DC;

[0819] A performance indicator of the first terminal within the range of the fourth network device.

[0820] The ninth configuration information is used to indicate one or more of the following:

[0821] The starting time of the second time period is the time when the first terminal establishes a connection with the target SN;

[0822] At a start time of the second time period, start measuring and / or recording and / or collecting relevant information of the real or measured movement trajectory of the first terminal;

[0823] When the end moment of the second time period is reached or the second time period expires, stopping or ending the measurement and / or recording and / or recording relevant information of the real or measured movement trajectory of the first terminal;

[0824] When the second time period ends or expires, information related to the real or measured movement trajectory of the first terminal is sent or fed back to the first network device.

[0825] Step 7: The first network device receives the fifth information or the sixth information sent by the second network device according to the second information.

[0826] Here, the fifth information represents information related to the actual or measured movement trajectory of the first terminal, and the sixth information represents abnormal information regarding the inability to feedback the fifth information. The sixth information can be generated by the second network device and represent the reason why the second network device cannot feedback the fifth information. The sixth information can also be sent based on the ninth information feedback from the fifth network device and represent abnormal information regarding the inability of the fifth network device to feedback the fifth information, and can also represent the reason why the second network device cannot feedback the fifth information.

[0827] The fifth information includes one or more of the following:

[0828] A first condition for starting measurement and / or recording and / or collection of a real movement trajectory of the first terminal;

[0829] A second condition for ending or stopping measuring and / or recording and / or collecting the real movement trajectory of the first terminal;

[0830] seventh information, where the seventh information represents a reason or related information why the actual state of the first terminal does not match the movement trajectory prediction information represented by the first information;

[0831] PCell's logo;

[0832] a dwell time of the first terminal in the PCell;

[0833] The identifiers of the cells included in the MCG;

[0834] The duration that each cell included in the MCG serves as a serving cell;

[0835] SN logo;

[0836] PSell's logo;

[0837] an average downlink signal quality or average downlink signal strength that can be achieved when the first terminal is connected to the SN;

[0838] The duration of the connection between the first terminal and the SN;

[0839] an average downlink signal quality or average downlink signal strength achievable by the first terminal when connected to the PSell;

[0840] a duration during which the first terminal maintains a connection with the PSell;

[0841] The identity of the cell included in the SCG;

[0842] The duration that each cell included in the SCG serves as a serving cell;

[0843] The moment or duration of SCG activation;

[0844] The time or duration of SCG deactivation;

[0845] The time when the first terminal establishes the MR-DC within a first time period, where the first time period represents a time period for measuring or collecting the movement trajectory of the first terminal;

[0846] a duration during which the first terminal is in the MR-DC state within a first time period, where the first time period represents a time period for measuring or collecting a movement trajectory of the first terminal;

[0847] a time when the first terminal releases the MR-DC within a first time period, where the first time period represents a time period for measuring or collecting a movement trajectory of the first terminal;

[0848] The average data volume of the first terminal in a first time period, where the first time period represents a time period for measuring or collecting the movement trajectory of the first terminal.

[0849] The seventh information includes one or more of the following:

[0850] The first information does not contain a target PSCell that the first terminal successfully adds or switches to;

[0851] The PSCell for actually establishing the MR-DC by the first terminal does not match the PSCell in the first information;

[0852] Measurement information related to a target PSCell successfully added or switched by the first terminal;

[0853] A start time of a target PSCell successfully added or switched by the first terminal;

[0854] A retention duration of a target PSCell successfully added or switched by the first terminal;

[0855] location information of the first terminal when the first terminal successfully adds or switches to a target PSCell;

[0856] No PSCells were measured;

[0857] No PSCell was found that could be used to establish or restore the SN connection;

[0858] The service or data volume of the first terminal does not require the establishment of an MR-DC;

[0859] an identifier of a PSCell in which the first terminal fails in the MR-DC state;

[0860] The identifier of the PSCell used to restore the SN connection;

[0861] PSCell-related measurement information used to restore SN connection;

[0862] The starting time when the first terminal is connected to the PSCell used to restore the SN connection;

[0863] The duration for which the first terminal is connected to the PSCell used to restore the SN connection;

[0864] The location information of the first terminal when the first terminal is connected to the PSCell used to restore the SN connection.

[0865] The sixth information includes one or more of the following:

[0866] Abnormal indication information, where the abnormal indication information is used to indicate a sending error or failure of the second network device, and / or is used to indicate that complete fifth information cannot be obtained by measuring according to the fourth information;

[0867] Exception reason value.

[0868] The abnormality reason value is used to indicate one or more of the following:

[0869] No PSCells were measured;

[0870] No PSCell was found that could be used to establish or restore the SN connection;

[0871] The service or data volume of the first terminal does not require the establishment of an MR-DC;

[0872] The reason why the first terminal fails to establish the MR-DC;

[0873] a reason why the first terminal fails in the MR-DC state;

[0874] The reason why the first terminal did not restore the SN connection after sending failed in the MR-DC state.

[0875] Step 8: The first network device modifies and / or retrains and / or iteratively updates the first model according to the fifth information.

[0876] It should be noted that, upon receiving the sixth information or the ninth information, the first network device releases the context or configuration information of the first terminal.

[0877] When the third network device obtains the fifth information, it can modify and / or retrain and / or iteratively update the second model according to the fifth information; the fifth information can be forwarded by the first network device to the third network device.

[0878] In order to implement the method on the first network device side of the embodiment of the present application, the embodiment of the present application also provides a terminal mobility enhancement device, which is set on the first network device, such as Figure 6 As shown, the device includes:

[0879] A first acquiring unit 601 is configured to acquire first information; and / or

[0880] The first sending unit 602 is configured to send second information to one or more second network devices; wherein,

[0881] The first information represents movement trajectory prediction information for the first terminal in the MR-DC scenario; the second information represents relevant configuration or signaling for collecting or obtaining the actual or measured movement trajectory of the first terminal.

[0882] In one embodiment, the apparatus further comprises:

[0883] The third sending unit is configured to send the first information to one or more second network devices; and / or send the first information to one or more third network devices.

[0884] In one embodiment, the first acquiring unit 601 is specifically configured to do one or more of the following:

[0885] Generate first information; the first information includes movement trajectory prediction information of the first terminal in the MR-DC scenario for the second network device, and / or movement trajectory prediction information of the first terminal in the MR-DC scenario for the first network device and / or the third network device;

[0886] Predicting first information using the first model; the first information includes movement trajectory prediction information of the first terminal in an MR-DC scenario for the second network device, and / or movement trajectory prediction information of the first terminal in an MR-DC scenario for the first network device and / or a third network device;

[0887] First information sent by a third network device is received, where the first information is movement trajectory prediction information of the first terminal in an MR-DC scenario for the first network device and / or the third network device.

[0888] In one embodiment, the first information includes one or more of the following:

[0889] First cell information, where the first cell information represents relevant information of the PCell;

[0890] Second cell information, where the second cell information represents relevant information of the PSCell and / or SN;

[0891] Third cell information, where the third cell information represents relevant information of the MCG;

[0892] Fourth cell information, where the fourth cell information represents relevant information of the SCG;

[0893] Fifth cell information, where the fifth cell information represents relevant information about an SCG activation state or a deactivation state;

[0894] third information, where the third information is used to indicate a time during which the first terminal is in a single connection state or an MR-DC state;

[0895] The data volume of the first terminal.

[0896] In one embodiment, the first cell information includes at least one or more of the following:

[0897] Identifications of one or more PCells of a next-hop or multi-hop second network device of the first network device;

[0898] identifiers of one or more PCells of the first network device;

[0899] Identifications of one or more PCells of the third network device.

[0900] In one embodiment, the second cell information includes one or more of the following:

[0901] PSCell's logo;

[0902] PSCell list;

[0903] SN logo;

[0904] SN list;

[0905] The expected average downlink signal quality or average downlink signal strength when connected to each PSCell; the expected average downlink signal quality or average downlink signal strength when connected to each SN;

[0906] a duration for which the first terminal maintains a connection with each PSCell;

[0907] The time when the first terminal establishes a connection with each PSCell;

[0908] a probability of the first terminal adding each PSCell;

[0909] The duration of the connection between the first terminal and each SN;

[0910] The time when the first terminal establishes a connection with each SN;

[0911] The probability of the first terminal adding each SN.

[0912] In one embodiment, the third cell information includes:

[0913] The identity of the cell included in the MCG; and / or

[0914] The duration that each cell included in the MCG serves as a serving cell.

[0915] In one embodiment, the fourth cell information includes:

[0916] The identity of the cell contained in the SCG; and / or

[0917] The duration during which each cell included in the SCG serves as a serving cell.

[0918] In one embodiment, the fifth cell information includes one or more of the following: SCG activation status information;

[0919] SCG deactivation status information;

[0920] The moment or duration of SCG activation;

[0921] The time or duration of SCG deactivation;

[0922] The moment or duration of the SCG activation state change;

[0923] The moment or duration when the SCG deactivation state changes.

[0924] In one embodiment, the third information includes one or more of the following:

[0925] An estimated starting time for the first terminal to establish the MR-DC;

[0926] an estimated duration for the first terminal to be in the MR-DC state;

[0927] an estimated time when the first terminal releases the MR-DC;

[0928] an estimated start time when the first terminal enters a single connection state;

[0929] an estimated time when the first terminal enters a single connection state;

[0930] The estimated duration of time that the first terminal is in a single connection state.

[0931] In one embodiment, the apparatus further comprises:

[0932] A first training unit is used to train a first model based on fourth information, wherein the fourth information represents input information of the first model; and / or, to modify and / or retrain and / or iteratively update the first model based on fifth information, wherein the fifth information represents relevant information of the real or measured movement trajectory of the first terminal.

[0933] In one embodiment, the fourth information includes one or more of the following:

[0934] Current PSCell information;

[0935] Historical PSCell related information;

[0936] The PCell and / or PSCell to which the first terminal and / or the second terminal is currently connected, the second terminal representing a terminal different from the first terminal;

[0937] the PCell and / or PSCell to which the first terminal and / or the second terminal is historically connected, the second terminal representing a terminal different from the first terminal;

[0938] The historical movement trajectory of the first terminal and / or the second terminal, where the second terminal represents a terminal different from the first terminal.

[0939] In one embodiment, the method further includes:

[0940] The third acquiring unit is configured to acquire the fourth information.

[0941] In one embodiment, the third obtaining unit is specifically configured to do one or more of the following:

[0942] receiving fourth information sent by the first terminal and / or a second terminal, where the second terminal represents a terminal different from the first terminal;

[0943] receiving fourth information reported by one or more fourth network devices;

[0944] A first request is sent to one or more fourth network devices, and fourth information fed back by the one or more fourth network devices is received; the first request is used to request to obtain the fourth information.

[0945] In one embodiment, the second information includes one or more of the following:

[0946] first configuration information, where the first configuration information is used to indicate whether or not it is necessary to record and / or measure and / or collect and / or feed back the actual or measured movement trajectory of the first terminal or information related to the movement trajectory;

[0947] second configuration information, where the second configuration information is used to instruct recording and / or measurement and / or collection and / or feedback of a real or measured movement trajectory or related information of the movement trajectory of the first terminal;

[0948] third configuration information, where the third configuration information is used to indicate a first condition for starting measurement and / or recording and / or collection and / or feedback of a real movement trajectory of the first terminal;

[0949] Fourth configuration information, where the fourth configuration information is used to indicate a second condition for ending or stopping measuring and / or recording and / or collecting the real movement trajectory of the first terminal;

[0950] Fifth configuration information, where the fifth configuration information is used to instruct recording and / or measurement and / or collection and / or feedback of a real or measured movement trajectory or related information of the movement trajectory of the first terminal within a first time period;

[0951] Sixth configuration information, the sixth configuration information is used to indicate the duration, maximum duration, deadline, or latest time of feedback of the fifth information or the sixth information, the fifth information represents the actual or measured movement trajectory of the first terminal, and the sixth information represents abnormal information that cannot feedback the fifth information; wherein,

[0952] In the absence of the third configuration information or the first condition, it represents that the first terminal starts measuring and / or recording and / or collecting the actual movement trajectory or relevant information of the movement trajectory of the first terminal when entering the range of the second network device.

[0953] In one embodiment, the first configuration information is used to indicate one or more of the following:

[0954] Recording and / or measuring and / or collecting and / or feeding back relevant information of a real or measured movement trajectory of the first terminal in a single connection state after the first terminal successfully accesses or switches to the second network device;

[0955] Recording and / or measuring and / or collecting and / or feeding back relevant information of the real or measured movement trajectory of the first terminal in only the MR-DC state after the first terminal successfully accesses or switches to the second network device;

[0956] Recording and / or measuring and / or collecting and / or feeding back relevant information of the PCell to which the first terminal is connected after successfully accessing or switching to the second network device;

[0957] Recording and / or measuring and / or collecting and / or feeding back relevant information of the PSCell to which the first terminal is connected after successfully accessing or switching to the second network device;

[0958] Record and / or measure and / or collect and / or feedback relevant information of the real or measured movement trajectory of the first terminal in the single connection state and MR-DC state after successfully accessing or switching to the second network device.

[0959] In one embodiment, the second configuration information is used to instruct the second network device to record and / or measure and / or collect and / or feedback one or more of the following information related to the real or measured movement trajectory of the first terminal:

[0960] PCell related information;

[0961] Information about MCG;

[0962] SN related information;

[0963] PSCell related information;

[0964] Information about SCG;

[0965] The duration of SCG activation;

[0966] The duration of SCG deactivation;

[0967] The time when the first terminal establishes the MR-DC;

[0968] duration of the first terminal being in the MR-DC state;

[0969] The moment when the first terminal releases MR-DC;

[0970] The location information of the first terminal when connected to the PSCell.

[0971] In one embodiment, the first condition includes one or more of the following:

[0972] The first terminal establishes an MR-DC within a range of the second network device;

[0973] The first information does not contain a target PSCell that the first terminal successfully adds or switches to;

[0974] The PSCell for actually establishing the MR-DC by the first terminal does not match the PSCell in the first information;

[0975] At a start time when the first terminal is expected to establish the MR-DC, the first terminal fails to successfully establish the MR-DC;

[0976] The first terminal fails in the MR-DC state;

[0977] The first terminal fails in the MR-DC state and finds the PSCell to restore the SN connection;

[0978] The first terminal fails in the MR-DC state and the SN connection is not restored within a set time period;

[0979] The first terminal successfully switches to the second network device;

[0980] The first terminal establishes a connection with the second network device, or the first terminal successfully accesses the second network device.

[0981] In one embodiment, the second condition includes one or more of the following:

[0982] The first terminal fails in the MR-DC state;

[0983] The first terminal fails in the MR-DC state and finds the PSCell to restore the SN connection;

[0984] The first terminal fails in the MR-DC state and the SN connection is not restored within a set time period;

[0985] The first information does not contain a target PSCell that the first terminal successfully adds or switches to;

[0986] The PSCell where the first terminal actually establishes the MR-DC does not match the PSCell in the first information.

[0987] In one embodiment, the fifth configuration information is used to indicate one or more of the following:

[0988] At the start of the first time period, start measuring and / or recording and / or collecting relevant information of the real or measured movement trajectory of the first terminal;

[0989] When the first condition is met, start measuring and / or recording and / or collecting relevant information of the real or measured movement trajectory of the first terminal;

[0990] When the first terminal successfully accesses or switches to the second network device, start measuring and / or recording and / or collecting relevant information of the real or measured movement trajectory of the first terminal;

[0991] When the first time period ends or the first time period expires, stop or end measuring and / or recording and / or collecting relevant information of the real or measured movement trajectory of the first terminal;

[0992] When the first time period ends or expires, information related to the real or measured movement trajectory of the first terminal is sent to or fed back to the first network device.

[0993] In one embodiment, the apparatus further comprises:

[0994] The second receiving unit is used to receive fifth information or sixth information sent by one or more second network devices based on the second information, wherein the fifth information represents relevant information of the real or measured movement trajectory of the first terminal, and the sixth information represents abnormal information that the fifth information cannot be fed back.

[0995] In one embodiment, the fifth information includes one or more of the following:

[0996] A first condition for starting measurement and / or recording and / or collection of a real movement trajectory of the first terminal;

[0997] A second condition for ending or stopping measuring and / or recording and / or collecting the real movement trajectory of the first terminal;

[0998] seventh information, where the seventh information represents a reason or related information why the actual state of the first terminal does not match the movement trajectory prediction information represented by the first information;

[0999] PCell's logo;

[1000] a dwell time of the first terminal in the PCell;

[1001] The identifiers of the cells included in the MCG;

[1002] The duration that each cell included in the MCG serves as a serving cell;

[1003] SN logo;

[1004] PSell's logo;

[1005] an average downlink signal quality or average downlink signal strength that can be achieved when the first terminal is connected to the SN;

[1006] The duration of the connection between the first terminal and the SN;

[1007] an average downlink signal quality or average downlink signal strength achievable by the first terminal when connected to the PSell;

[1008] a duration during which the first terminal maintains a connection with the PSell;

[1009] The identity of the cell included in the SCG;

[1010] The duration that each cell included in the SCG serves as a serving cell;

[1011] The moment or duration of SCG activation;

[1012] The time or duration of SCG deactivation;

[1013] The time when the first terminal establishes the MR-DC within a first time period, where the first time period represents a time period for measuring or collecting the movement trajectory of the first terminal;

[1014] a duration during which the first terminal is in the MR-DC state within a first time period, where the first time period represents a time period for measuring or collecting a movement trajectory of the first terminal;

[1015] a time when the first terminal releases the MR-DC within a first time period, where the first time period represents a time period for measuring or collecting a movement trajectory of the first terminal;

[1016] The average data volume of the first terminal in a first time period, where the first time period represents a time period for measuring or collecting the movement trajectory of the first terminal.

[1017] In one embodiment, the seventh information includes one or more of the following:

[1018] The first information does not contain a target PSCell that the first terminal successfully adds or switches to;

[1019] The PSCell for actually establishing the MR-DC by the first terminal does not match the PSCell in the first information;

[1020] Measurement information related to a target PSCell successfully added or switched by the first terminal;

[1021] A start time of a target PSCell successfully added or switched by the first terminal;

[1022] A retention duration of a target PSCell successfully added or switched by the first terminal;

[1023] location information of the first terminal when the first terminal successfully adds or switches to a target PSCell;

[1024] No PSCells were measured;

[1025] No PSCell was found that could be used to establish or restore the SN connection;

[1026] The service or data volume of the first terminal does not require the establishment of an MR-DC;

[1027] an identifier of a PSCell in which the first terminal fails in the MR-DC state;

[1028] The identifier of the PSCell used to restore the SN connection;

[1029] PSCell-related measurement information used to restore SN connection;

[1030] The starting time when the first terminal is connected to the PSCell used to restore the SN connection;

[1031] The duration for which the first terminal is connected to the PSCell used to restore the SN connection;

[1032] The location information of the first terminal when the first terminal is connected to the PSCell used to restore the SN connection.

[1033] In one embodiment, the sixth information includes one or more of the following:

[1034] Abnormal indication information, where the abnormal indication information is used to indicate a sending error or failure of the second network device, and / or is used to indicate that complete fifth information cannot be obtained by measuring according to the fourth information;

[1035] Exception reason value.

[1036] In one embodiment, the abnormality cause value is used to indicate one or more of the following:

[1037] No PSCells were measured;

[1038] No PSCell was found that could be used to establish or restore the SN connection;

[1039] The service or data volume of the first terminal does not require the establishment of an MR-DC;

[1040] The reason why the first terminal fails to establish the MR-DC;

[1041] a reason why the first terminal fails in the MR-DC state;

[1042] The reason why the first terminal did not restore the SN connection after sending failed in the MR-DC state.

[1043] In one embodiment, the apparatus further comprises:

[1044] A releasing unit is configured to release the context or configuration information of the first terminal upon receiving the sixth information.

[1045] In one embodiment, the fourth network device includes one or more of the following:

[1046] Neighboring nodes of the source MN;

[1047] target MN;

[1048] Candidate target MN;

[1049] Source SN;

[1050] Target SN;

[1051] Candidate target SN.

[1052] In actual application, the first acquiring unit 601, the first sending unit 602, the second receiving unit, the third sending unit, the third acquiring unit and the releasing unit can be implemented by a processor in the terminal mobility enhancement device in combination with a communication interface.

[1053] In order to implement the method on the third network device side of the embodiment of the present application, the embodiment of the present application also provides a terminal mobility enhancement device, which is set on the third network device, such as Figure 7 As shown, the device includes:

[1054] The second acquiring unit 701 is configured to acquire first information; and / or

[1055] The second sending unit 702 is configured to send the first information to the first network device; wherein the first information represents movement trajectory prediction information for the first terminal in the MR-DC scenario.

[1056] In one embodiment, the apparatus further comprises:

[1057] The first processing unit is used to perform a first operation according to the first information, where the first operation represents a preparation or preprocessing operation related to adding, changing, activating or deactivating SN and / or PSCell.

[1058] In one embodiment, the first operation includes one or more of the following:

[1059] Determining whether to configure MR-DC for the first terminal;

[1060] Select candidate PSCells;

[1061] Allocate candidate SN reserved resources;

[1062] Determining a time to configure MR-DC for the first terminal;

[1063] Configuring or pre-configuring transmission resources in an MR-DC scenario for the first terminal;

[1064] Adjust the transmission resources in the MR-DC scenario configured for the first terminal.

[1065] In one embodiment, the second obtaining unit 701 is specifically configured to do one or more of the following:

[1066] Generate first information, where the first information is movement trajectory prediction information of the first terminal in an MR-DC scenario for the first network device and / or the third network device;

[1067] receiving first information sent by a first network device; the first information including movement trajectory prediction information of the first terminal in an MR-DC scenario for the second network device, and / or movement trajectory prediction information of the first terminal in an MR-DC scenario for the first network device and / or a third network device;

[1068] The first information is predicted by the second model; the first information includes movement trajectory prediction information of the first terminal in the MR-DC scenario for the first network device and / or the third network device.

[1069] In one embodiment, the apparatus further comprises:

[1070] The second training unit is used to train the second model according to fourth information, where the fourth information represents input information of the second model.

[1071] In actual application, the second acquisition unit 701, the second sending unit 702 and the first processing unit can be implemented by a processor in the terminal mobility enhancement device in combination with a communication interface, and the second training unit can be implemented by a processor in the terminal mobility enhancement device.

[1072] In order to implement the method on the second network device side of the embodiment of the present application, the embodiment of the present application also provides a terminal mobility enhancement device, which is set on the second network device, such as Figure 8 As shown, the device includes:

[1073] The first receiving unit 801 is used to receive first information and / or second information sent by a first network device, where the first information represents the mobile trajectory prediction information for the first terminal in the MR-DC scenario, and the second information represents the relevant configuration or signaling used to collect or obtain the actual or measured mobile trajectory of the first terminal.

[1074] In one embodiment, the apparatus further comprises:

[1075] The second processing unit is configured to perform a second operation according to the second information.

[1076] In one embodiment, the second operation includes one or more of the following:

[1077] Initiate measurement and / or record relevant information of the real or measured movement trajectory of the first terminal;

[1078] Stop measuring and / or recording relevant information of the real or measured movement trajectory of the first terminal;

[1079] Sending or feeding back fifth information or sixth information to the first network device, where the fifth information represents relevant information about the actual or measured movement trajectory of the first terminal, and the sixth information represents abnormal information that the fifth information cannot be fed back;

[1080] Sending eighth information to the fifth network device, where the eighth information represents relevant configuration or signaling for recording and / or measuring and / or collecting and / or feeding back the real or measured movement trajectory of the first terminal;

[1081] Receive fifth information or ninth information sent by the fifth network device according to the eighth information, where the fifth information represents relevant information of the real or measured movement trajectory of the first terminal, and the ninth information represents abnormal information that the fifth information cannot be fed back.

[1082] In one embodiment, the eighth information includes one or more of the following:

[1083] Seventh configuration information, where the seventh configuration information is used to indicate whether or not it is necessary to record and / or measure and / or collect and / or feed back the actual or measured movement trajectory of the first terminal or information related to the movement trajectory;

[1084] Eighth configuration information, where the eighth configuration information is used to instruct recording and / or measurement and / or collection and / or feedback of a real or measured movement trajectory or related information of the movement trajectory of the first terminal;

[1085] Ninth configuration information, the ninth configuration information is used to instruct recording and / or measurement and / or collection and / or feedback of the actual or measured movement trajectory or related information of the movement trajectory of the first terminal in the second time period.

[1086] In one embodiment, the eighth configuration information is used to instruct the fifth network device to record and / or measure and / or collect and / or feed back one or more of the following information of the first terminal in the MR-DC state:

[1087] PSell related information;

[1088] Information about SCG;

[1089] SN related information;

[1090] The duration of SCG activation;

[1091] The duration of SCG deactivation;

[1092] The time when the first terminal establishes the MR-DC;

[1093] duration of the first terminal being in the MR-DC state;

[1094] The moment when the first terminal releases MR-DC;

[1095] A performance indicator of the first terminal within the range of the fourth network device.

[1096] In one embodiment, the ninth configuration information is used to indicate one or more of the following:

[1097] The starting time of the second time period is the time when the first terminal establishes a connection with the target SN;

[1098] At a start time of the second time period, start measuring and / or recording and / or collecting relevant information of the real or measured movement trajectory of the first terminal;

[1099] When the end moment of the second time period is reached or the second time period expires, stopping or ending the measurement and / or recording and / or recording relevant information of the real or measured movement trajectory of the first terminal;

[1100] When the second time period ends or expires, information related to the real or measured movement trajectory of the first terminal is sent to or fed back to the first network device.

[1101] In one embodiment, the apparatus further comprises:

[1102] The third processing unit is used to perform a first operation according to the first information, where the first operation represents a preparation or preprocessing operation related to adding, changing, activating or deactivating SN and / or PSCell.

[1103] In one embodiment, the first operation includes one or more of the following:

[1104] Determining whether to configure MR-DC for the first terminal;

[1105] Select a candidate SN;

[1106] Instructing the candidate SN to reserve resources for the first terminal;

[1107] Determining a time to configure MR-DC for the first terminal;

[1108] Configuring or pre-configuring transmission resources in an MR-DC scenario for the first terminal;

[1109] Adjusting transmission resources in the MR-DC scenario configured for the first terminal;

[1110] Determine the time to activate SN;

[1111] Activate SN in advance;

[1112] Determine when to activate the PSCell;

[1113] Activate PSCell in advance;

[1114] Determine the time to deactivate the SN;

[1115] Determine when to deactivate the PSCell.

[1116] In actual application, the first receiving unit 801, the first processing unit and the second processing unit can be implemented by a processor in the terminal mobility enhancement device in combination with a communication interface, and the second training unit can be implemented by a processor in the terminal mobility enhancement device.

[1117] It should be noted that the above embodiments provide a terminal mobility enhancement device, using the division of the aforementioned program modules as an example to illustrate terminal mobility enhancement. In actual applications, the aforementioned processing can be assigned to different program modules as needed, that is, the internal structure of the device can be divided into different program modules to complete all or part of the aforementioned processing. In addition, the terminal mobility enhancement device and the terminal mobility enhancement method embodiments provided in the above embodiments are based on the same concept. The specific implementation process is detailed in the method embodiments and will not be repeated here.

[1118] Based on the hardware implementation of the above program modules, and in order to implement the method of the first network device side of the embodiment of the present application, the embodiment of the present application also provides a first network device, such as Figure 9 As shown, the first network device 900 includes:

[1119] The first communication interface 901 is capable of exchanging information with other network nodes;

[1120] The first processor 902 is connected to the first communication interface 901 to implement information exchange with other network nodes and is used to execute the methods provided by one or more technical solutions of the first network device side when running a computer program. The computer program is stored in the first memory 903.

[1121] Specifically, the first processor 902 is configured to obtain first information; and / or

[1122] The first communication interface 901 is used to send second information to one or more second network devices; wherein the first information represents the movement trajectory prediction information for the first terminal in the MR-DC scenario; the second information represents the relevant configuration or signaling used to collect or obtain the real or measured movement trajectory of the first terminal.

[1123] In one embodiment, the first communication interface 901 is further configured to send the first information to one or more second network devices; and / or send the first information to one or more third network devices.

[1124] In one embodiment, the first processor 902 is specifically configured to do one or more of the following:

[1125] Generate first information; the first information includes movement trajectory prediction information of the first terminal in the MR-DC scenario for the second network device, and / or movement trajectory prediction information of the first terminal in the MR-DC scenario for the first network device and / or the third network device;

[1126] Predicting first information using the first model; the first information includes movement trajectory prediction information of the first terminal in an MR-DC scenario for the second network device, and / or movement trajectory prediction information of the first terminal in an MR-DC scenario for the first network device and / or a third network device;

[1127] The first communication interface 901 is further configured to receive first information sent by a third network device, where the first information is movement trajectory prediction information of the first terminal in an MR-DC scenario for the first network device and / or the third network device.

[1128] In one embodiment, the first information includes one or more of the following:

[1129] First cell information, where the first cell information represents relevant information of the PCell;

[1130] Second cell information, where the second cell information represents relevant information of the PSCell and / or SN;

[1131] Third cell information, where the third cell information represents relevant information of the MCG;

[1132] Fourth cell information, where the fourth cell information represents relevant information of the SCG;

[1133] Fifth cell information, where the fifth cell information represents relevant information about an SCG activation state or a deactivation state;

[1134] third information, where the third information is used to indicate a time during which the first terminal is in a single connection state or an MR-DC state;

[1135] The data volume of the first terminal.

[1136] In one embodiment, the first cell information includes at least one or more of the following:

[1137] Identifications of one or more PCells of a next-hop or multi-hop second network device of the first network device;

[1138] identifiers of one or more PCells of the first network device;

[1139] Identifications of one or more PCells of the third network device.

[1140] In one embodiment, the second cell information includes one or more of the following:

[1141] PSCell's logo;

[1142] PSCell list;

[1143] SN logo;

[1144] SN list;

[1145] The expected average downlink signal quality or average downlink signal strength when connected to each PSCell;

[1146] The expected average downlink signal quality or average downlink signal strength when connected to each SN;

[1147] a duration for which the first terminal maintains a connection with each PSCell;

[1148] The time when the first terminal establishes a connection with each PSCell;

[1149] a probability of the first terminal adding each PSCell;

[1150] The duration of the connection between the first terminal and each SN;

[1151] The time when the first terminal establishes a connection with each SN;

[1152] The probability of the first terminal adding each SN.

[1153] In one embodiment, the third cell information includes:

[1154] The identity of the cell included in the MCG; and / or

[1155] The duration that each cell included in the MCG serves as a serving cell.

[1156] In one embodiment, the fourth cell information includes:

[1157] The identity of the cell contained in the SCG; and / or

[1158] The duration during which each cell included in the SCG serves as a serving cell.

[1159] In one embodiment, the fifth cell information includes one or more of the following:

[1160] SCG activation status information;

[1161] SCG deactivation status information;

[1162] The moment or duration of SCG activation;

[1163] The time or duration of SCG deactivation;

[1164] The moment or duration of the SCG activation state change;

[1165] The moment or duration when the SCG deactivation state changes.

[1166] In one embodiment, the third information includes one or more of the following:

[1167] An estimated starting time for the first terminal to establish the MR-DC;

[1168] an estimated duration for the first terminal to be in the MR-DC state;

[1169] an estimated time when the first terminal releases the MR-DC;

[1170] an estimated start time when the first terminal enters a single connection state;

[1171] an estimated time when the first terminal enters a single connection state;

[1172] The estimated duration of time that the first terminal is in a single connection state.

[1173] In one embodiment, the first processor 902 is further used to train the first model based on fourth information, where the fourth information represents input information of the first model; and / or, to modify and / or retrain and / or iteratively update the first model based on fifth information, where the fifth information represents relevant information of the real or measured movement trajectory of the first terminal.

[1174] In one embodiment, the fourth information includes one or more of the following:

[1175] Current PSCell information;

[1176] Historical PSCell related information;

[1177] The PCell and / or PSCell to which the first terminal and / or the second terminal is currently connected, the second terminal representing a terminal different from the first terminal;

[1178] the PCell and / or PSCell to which the first terminal and / or the second terminal is historically connected, the second terminal representing a terminal different from the first terminal;

[1179] The historical movement trajectory of the first terminal and / or the second terminal, where the second terminal represents a terminal different from the first terminal.

[1180] In one embodiment, the first communication interface 901 is further used to obtain the fourth information.

[1181] In one embodiment, the first communication interface 901 is specifically used for one or more of the following:

[1182] receiving fourth information sent by the first terminal and / or a second terminal, where the second terminal represents a terminal different from the first terminal;

[1183] receiving fourth information reported by one or more fourth network devices;

[1184] A first request is sent to one or more fourth network devices, and fourth information fed back by the one or more fourth network devices is received; the first request is used to request to obtain the fourth information.

[1185] In one embodiment, the second information includes one or more of the following:

[1186] first configuration information, where the first configuration information is used to indicate whether or not it is necessary to record and / or measure and / or collect and / or feed back the actual or measured movement trajectory of the first terminal or information related to the movement trajectory;

[1187] second configuration information, where the second configuration information is used to instruct recording and / or measurement and / or collection and / or feedback of a real or measured movement trajectory or related information of the movement trajectory of the first terminal;

[1188] third configuration information, where the third configuration information is used to indicate a first condition for starting measurement and / or recording and / or collection and / or feedback of a real movement trajectory of the first terminal;

[1189] Fourth configuration information, where the fourth configuration information is used to indicate a second condition for ending or stopping measuring and / or recording and / or collecting the real movement trajectory of the first terminal;

[1190] Fifth configuration information, where the fifth configuration information is used to instruct recording and / or measurement and / or collection and / or feedback of a real or measured movement trajectory or related information of the movement trajectory of the first terminal within a first time period;

[1191] Sixth configuration information, the sixth configuration information is used to indicate the duration, maximum duration, deadline, or latest time of feedback of the fifth information or the sixth information, the fifth information represents the actual or measured movement trajectory of the first terminal, and the sixth information represents abnormal information that cannot feedback the fifth information; wherein,

[1192] In the absence of the third configuration information or the first condition, it represents that the first terminal starts measuring and / or recording and / or collecting the actual movement trajectory or relevant information of the movement trajectory of the first terminal when entering the range of the second network device.

[1193] In one embodiment, the first configuration information is used to indicate one or more of the following:

[1194] Recording and / or measuring and / or collecting and / or feeding back relevant information of a real or measured movement trajectory of the first terminal in a single connection state after the first terminal successfully accesses or switches to the second network device;

[1195] Recording and / or measuring and / or collecting and / or feeding back relevant information of the real or measured movement trajectory of the first terminal in only the MR-DC state after the first terminal successfully accesses or switches to the second network device;

[1196] Recording and / or measuring and / or collecting and / or feeding back relevant information of the PCell to which the first terminal is connected after successfully accessing or switching to the second network device;

[1197] Recording and / or measuring and / or collecting and / or feeding back relevant information of the PSCell to which the first terminal is connected after successfully accessing or switching to the second network device;

[1198] Record and / or measure and / or collect and / or feedback relevant information of the real or measured movement trajectory of the first terminal in the single connection state and MR-DC state after successfully accessing or switching to the second network device.

[1199] In one embodiment, the second configuration information is used to instruct the second network device to record and / or measure and / or collect and / or feedback one or more of the following information related to the real or measured movement trajectory of the first terminal:

[1200] PCell related information;

[1201] Information about MCG;

[1202] SN related information;

[1203] PSCell related information;

[1204] Information about SCG;

[1205] The duration of SCG activation;

[1206] The duration of SCG deactivation;

[1207] The time when the first terminal establishes the MR-DC;

[1208] duration of the first terminal being in the MR-DC state;

[1209] The moment when the first terminal releases MR-DC;

[1210] The location information of the first terminal when connected to the PSCell.

[1211] In one embodiment, the first condition includes one or more of the following:

[1212] The first terminal establishes an MR-DC within a range of the second network device;

[1213] The first information does not contain a target PSCell that the first terminal successfully adds or switches to;

[1214] The PSCell for actually establishing the MR-DC by the first terminal does not match the PSCell in the first information;

[1215] At a start time when the first terminal is expected to establish the MR-DC, the first terminal fails to successfully establish the MR-DC;

[1216] The first terminal fails in the MR-DC state;

[1217] The first terminal fails in the MR-DC state and finds the PSCell to restore the SN connection;

[1218] The first terminal fails in the MR-DC state and the SN connection is not restored within a set time period;

[1219] The first terminal successfully switches to the second network device;

[1220] The first terminal establishes a connection with the second network device, or the first terminal successfully accesses the second network device.

[1221] In one embodiment, the second condition includes one or more of the following:

[1222] The first terminal fails in the MR-DC state;

[1223] The first terminal fails in the MR-DC state and finds the PSCell to restore the SN connection;

[1224] The first terminal fails in the MR-DC state and the SN connection is not restored within a set time period;

[1225] The first information does not contain a target PSCell that the first terminal successfully adds or switches to;

[1226] The PSCell where the first terminal actually establishes the MR-DC does not match the PSCell in the first information.

[1227] In one embodiment, the fifth configuration information is used to indicate one or more of the following:

[1228] At the start of the first time period, start measuring and / or recording and / or collecting relevant information of the real or measured movement trajectory of the first terminal;

[1229] When the first condition is met, start measuring and / or recording and / or collecting relevant information of the real or measured movement trajectory of the first terminal;

[1230] When the first terminal successfully accesses or switches to the second network device, start measuring and / or recording and / or collecting relevant information of the real or measured movement trajectory of the first terminal;

[1231] When the first time period ends or the first time period expires, stop or end measuring and / or recording and / or collecting relevant information of the real or measured movement trajectory of the first terminal;

[1232] When the first time period ends or expires, information related to the real or measured movement trajectory of the first terminal is sent to or fed back to the first network device.

[1233] In one embodiment, the first communication interface 901 is further used to receive fifth information or sixth information sent by one or more second network devices based on the second information, wherein the fifth information represents relevant information of the real or measured movement trajectory of the first terminal, and the sixth information represents abnormal information that cannot be fed back into the fifth information.

[1234] In one embodiment, the fifth information includes one or more of the following:

[1235] A first condition for starting measurement and / or recording and / or collection of a real movement trajectory of the first terminal;

[1236] A second condition for ending or stopping measuring and / or recording and / or collecting the real movement trajectory of the first terminal;

[1237] seventh information, where the seventh information represents a reason or related information why the actual state of the first terminal does not match the movement trajectory prediction information represented by the first information;

[1238] PCell's logo;

[1239] a dwell time of the first terminal in the PCell;

[1240] The identifiers of the cells included in the MCG;

[1241] The duration that each cell included in the MCG serves as a serving cell;

[1242] SN logo;

[1243] PSell's logo;

[1244] an average downlink signal quality or average downlink signal strength that can be achieved when the first terminal is connected to the SN;

[1245] The duration of the connection between the first terminal and the SN;

[1246] an average downlink signal quality or average downlink signal strength achievable by the first terminal when connected to the PSell;

[1247] a duration during which the first terminal maintains a connection with the PSell;

[1248] The identity of the cell included in the SCG;

[1249] The duration that each cell included in the SCG serves as a serving cell;

[1250] The moment or duration of SCG activation;

[1251] The time or duration of SCG deactivation;

[1252] The time when the first terminal establishes the MR-DC within a first time period, where the first time period represents a time period for measuring or collecting the movement trajectory of the first terminal;

[1253] a duration during which the first terminal is in the MR-DC state within a first time period, where the first time period represents a time period for measuring or collecting a movement trajectory of the first terminal;

[1254] a time when the first terminal releases the MR-DC within a first time period, where the first time period represents a time period for measuring or collecting a movement trajectory of the first terminal;

[1255] The average data volume of the first terminal in a first time period, where the first time period represents a time period for measuring or collecting the movement trajectory of the first terminal.

[1256] In one embodiment, the seventh information includes one or more of the following:

[1257] The first information does not contain a target PSCell that the first terminal successfully adds or switches to;

[1258] The PSCell for actually establishing the MR-DC by the first terminal does not match the PSCell in the first information;

[1259] Measurement information related to a target PSCell successfully added or switched by the first terminal;

[1260] A start time of a target PSCell successfully added or switched by the first terminal;

[1261] A retention duration of a target PSCell successfully added or switched by the first terminal;

[1262] location information of the first terminal when the first terminal successfully adds or switches to a target PSCell;

[1263] No PSCells were measured;

[1264] No PSCell was found that could be used to establish or restore the SN connection;

[1265] The service or data volume of the first terminal does not require the establishment of an MR-DC;

[1266] an identifier of a PSCell in which the first terminal fails in the MR-DC state;

[1267] The identifier of the PSCell used to restore the SN connection;

[1268] PSCell-related measurement information used to restore SN connection;

[1269] The starting time when the first terminal is connected to the PSCell used to restore the SN connection;

[1270] The duration for which the first terminal is connected to the PSCell used to restore the SN connection;

[1271] The location information of the first terminal when the first terminal is connected to the PSCell used to restore the SN connection.

[1272] In one embodiment, the sixth information includes one or more of the following:

[1273] Abnormal indication information, where the abnormal indication information is used to indicate a sending error or failure of the second network device, and / or is used to indicate that complete fifth information cannot be obtained by measuring according to the fourth information;

[1274] Exception reason value.

[1275] In one embodiment, the abnormality cause value is used to indicate one or more of the following:

[1276] No PSCells were measured;

[1277] No PSCell was found that could be used to establish or restore the SN connection;

[1278] The service or data volume of the first terminal does not require the establishment of an MR-DC;

[1279] The reason why the first terminal fails to establish the MR-DC;

[1280] a reason why the first terminal fails in the MR-DC state;

[1281] The reason why the first terminal did not restore the SN connection after sending failed in the MR-DC state.

[1282] In one embodiment, the first processor 902 is further configured to release the context or configuration information of the first terminal upon receiving the sixth information.

[1283] In one embodiment, the fourth network device includes one or more of the following:

[1284] Neighboring nodes of the source MN;

[1285] target MN;

[1286] Candidate target MN;

[1287] Source SN;

[1288] Target SN;

[1289] Candidate target SN.

[1290] It should be noted that the specific processing process of the first processor 902 and the first communication interface 901 can be understood by referring to the above method.

[1291] Of course, in actual application, the various components in the first network device 900 are coupled together through the bus system 904. It can be understood that the bus system 904 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 904 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, Figure 9 Various buses are labeled as bus system 904.

[1292] The first memory 903 in the embodiment of the present application is used to store various types of data to support the operation of the first network device 900. Examples of such data include: any computer program used to operate on the first network device 900.

[1293] The methods disclosed in the above embodiments of the present application can be applied to the first processor 902 or implemented by the first processor 902. The first processor 902 may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method can be completed by an integrated logic circuit of the hardware in the first processor 902 or by instructions in the form of software. The above first processor 902 may be a general-purpose processor, a digital signal processor (DSP), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The first processor 902 can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present application. A general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium located in the first memory 903. The first processor 902 reads the information in the first memory 903 and completes the steps of the above method in combination with its hardware.

[1294] In an exemplary embodiment, the first network device 900 can be implemented by one or more application-specific integrated circuits (ASICs), DSPs, programmable logic devices (PLDs), complex programmable logic devices (CPLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers (MCUs), microprocessors, or other electronic components to perform the aforementioned method.

[1295] Based on the hardware implementation of the above program modules, and in order to implement the method of the second network device of the embodiment of the present application, the embodiment of the present application also provides a second network device, which includes a terminal or an application server, such as Figure 10 As shown, the second network device 1000 includes:

[1296] The second communication interface 1001 is capable of exchanging information with other network nodes;

[1297] The second processor 1002 is connected to the second communication interface 1001 to implement information exchange with other network nodes and is used to execute the methods provided by one or more technical solutions of the second network device side when running a computer program. The computer program is stored in the second memory 1003.

[1298] Specifically, the second communication interface 1001 is used to receive first information and / or second information sent by the first network device, where the first information represents the movement trajectory prediction information for the first terminal in the MR-DC scenario, and the second information represents the relevant configuration or signaling used to collect or obtain the actual or measured movement trajectory of the first terminal.

[1299] In one embodiment, the second processor 1002 is configured to perform a second operation according to the second information.

[1300] In one embodiment, the second operation includes one or more of the following:

[1301] Initiate measurement and / or record relevant information of the real or measured movement trajectory of the first terminal;

[1302] Stop measuring and / or recording relevant information of the real or measured movement trajectory of the first terminal;

[1303] Sending or feeding back fifth information or sixth information to the first network device, where the fifth information represents relevant information about the actual or measured movement trajectory of the first terminal, and the sixth information represents abnormal information that the fifth information cannot be fed back;

[1304] Sending eighth information to the fifth network device, where the eighth information represents relevant configuration or signaling for recording and / or measuring and / or collecting and / or feeding back the real or measured movement trajectory of the first terminal;

[1305] Receive fifth information or ninth information sent by the fifth network device according to the eighth information, where the fifth information represents relevant information of the real or measured movement trajectory of the first terminal, and the ninth information represents abnormal information that the fifth information cannot be fed back.

[1306] In one embodiment, the eighth information includes one or more of the following:

[1307] Seventh configuration information, where the seventh configuration information is used to indicate whether or not it is necessary to record and / or measure and / or collect and / or feed back the actual or measured movement trajectory of the first terminal or information related to the movement trajectory;

[1308] Eighth configuration information, where the eighth configuration information is used to instruct recording and / or measurement and / or collection and / or feedback of a real or measured movement trajectory or related information of the movement trajectory of the first terminal;

[1309] Ninth configuration information, the ninth configuration information is used to instruct recording and / or measurement and / or collection and / or feedback of the actual or measured movement trajectory or related information of the movement trajectory of the first terminal in the second time period.

[1310] In one embodiment, the eighth configuration information is used to instruct the fifth network device to record and / or measure and / or collect and / or feed back one or more of the following information of the first terminal in the MR-DC state:

[1311] PSell related information;

[1312] Information about SCG;

[1313] SN related information;

[1314] The duration of SCG activation;

[1315] The duration of SCG deactivation;

[1316] The time when the first terminal establishes the MR-DC;

[1317] duration of the first terminal being in the MR-DC state;

[1318] The moment when the first terminal releases MR-DC;

[1319] A performance indicator of the first terminal within the range of the fourth network device.

[1320] In one embodiment, the ninth configuration information is used to indicate one or more of the following:

[1321] The starting time of the second time period is the time when the first terminal establishes a connection with the target SN;

[1322] At a start time of the second time period, start measuring and / or recording and / or collecting relevant information of the real or measured movement trajectory of the first terminal;

[1323] When the end moment of the second time period is reached or the second time period expires, stopping or ending the measurement and / or recording and / or recording relevant information of the real or measured movement trajectory of the first terminal;

[1324] When the second time period ends or expires, information related to the real or measured movement trajectory of the first terminal is sent to or fed back to the first network device.

[1325] In one embodiment, the second processor 1002 is further configured to perform a first operation according to the first information, where the first operation represents preparation work or preprocessing operations related to adding, changing, activating, or deactivating SN and / or PSCell.

[1326] In one embodiment, the first operation includes one or more of the following:

[1327] Determining whether to configure MR-DC for the first terminal;

[1328] Select a candidate SN;

[1329] Instructing the candidate SN to reserve resources for the first terminal;

[1330] Determining a time to configure MR-DC for the first terminal;

[1331] Configuring or pre-configuring transmission resources in an MR-DC scenario for the first terminal;

[1332] Adjusting transmission resources in the MR-DC scenario configured for the first terminal;

[1333] Determine the time to activate SN;

[1334] Activate SN in advance;

[1335] Determine when to activate the PSCell;

[1336] Activate PSCell in advance;

[1337] Determine the time to deactivate the SN;

[1338] Determine when to deactivate the PSCell.

[1339] It should be noted that the specific processing process of the second processor 1002 and the second communication interface 1001 can be understood by referring to the above method.

[1340] Of course, in actual application, the various components in the second network device 1000 are coupled together through the bus system 1004. It can be understood that the bus system 1004 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 1004 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, Figure 10 Various buses are labeled as bus system 1004.

[1341] The second memory 1003 in the embodiment of the present application is used to store various types of data to support the operation of the second network device 1000. Examples of such data include: any computer program used to operate on the second network device 1000.

[1342] The methods disclosed in the above embodiments of the present application can be applied to or implemented by the second processor 1002. The second processor 1002 may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method can be completed by hardware integrated logic circuits or software instructions in the second processor 1002. The above second processor 1002 may be a general-purpose processor, a DSP, or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, etc. The second processor 1002 can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present application. A general-purpose processor may be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of the present application can be directly implemented and executed by a hardware decoding processor, or by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium located in the second memory 1003. The second processor 1002 reads the information in the second memory 1003 and, in conjunction with its hardware, completes the steps of the above method.

[1343] In an exemplary embodiment, the second network device 1000 may be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general-purpose processors, controllers, MCUs, Microprocessors, or other electronic components to perform the aforementioned method.

[1344] Based on the hardware implementation of the above program modules, and in order to implement the method of the third network device side of the embodiment of the present application, the embodiment of the present application also provides a third network device, such as Figure 11 As shown, the third network device 1100 includes:

[1345] The third communication interface 1101 is capable of exchanging information with other network nodes;

[1346] The third processor 1102 is connected to the third communication interface 1101 to implement information exchange with other network nodes and is used to execute the methods provided by one or more technical solutions of the third network device side when running a computer program. The computer program is stored in the third memory 1103.

[1347] Specifically, the third processor 1102 is configured to obtain the first information; and / or,

[1348] The third communication interface 1101 is configured to send the first information to the first network device; wherein the first information represents movement trajectory prediction information for the first terminal in the MR-DC scenario.

[1349] In one embodiment, the third processor 1102 is configured to perform a first operation according to the first information, where the first operation represents a preparation or preprocessing operation related to adding, changing, activating, or deactivating an SN and / or PSCell.

[1350] In one embodiment, the first operation includes one or more of the following:

[1351] Determining whether to configure MR-DC for the first terminal;

[1352] Select candidate PSCells;

[1353] Allocate candidate SN reserved resources;

[1354] Determining a time to configure MR-DC for the first terminal;

[1355] Configuring or pre-configuring transmission resources in an MR-DC scenario for the first terminal;

[1356] Adjust the transmission resources in the MR-DC scenario configured for the first terminal.

[1357] In one embodiment, the third processor 1102 is specifically configured to do one or more of the following:

[1358] Generate first information, where the first information is movement trajectory prediction information of the first terminal in an MR-DC scenario for the first network device and / or the third network device;

[1359] Predicting first information using the second model; the first information includes predicted movement trajectory information of the first terminal in the MR-DC scenario for the first network device and / or the third network device; and / or

[1360] The third communication interface 1101 is also used to receive first information sent by the first network device; the first information includes movement trajectory prediction information of the first terminal in the MR-DC scenario for the second network device, and / or movement trajectory prediction information of the first terminal in the MR-DC scenario for the first network device and / or the third network device.

[1361] In one embodiment, the third processor 1102 is further configured to train the second model based on fourth information, where the fourth information represents input information of the second model.

[1362] Of course, in actual application, the various components in the third network device 1100 are coupled together through the bus system 1104. It can be understood that the bus system 1104 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 1104 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, Figure 11 Various buses are labeled as bus system 1104.

[1363] The third memory 1103 in the embodiment of the present application is used to store various types of data to support the operation of the third network device 1100. Examples of such data include: any computer program used to operate on the third network device 1100.

[1364] The methods disclosed in the above embodiments of the present application can be applied to or implemented by the third processor 1102. The third processor 1102 may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method can be completed by hardware integrated logic circuits or software instructions in the third processor 1102. The third processor 1102 may be a general-purpose processor, a DSP, or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, etc. The third processor 1102 can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present application. A general-purpose processor may be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of the present application can be directly implemented and executed by a hardware decoding processor, or by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium located in the third memory 1103. The third processor 1102 reads the information in the third memory 1103 and, in conjunction with its hardware, completes the steps of the above method.

[1365] In an exemplary embodiment, the third network device 1100 may be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general-purpose processors, controllers, MCUs, Microprocessors, or other electronic components to perform the aforementioned methods.

[1366] It can be understood that the memory (first memory 903, second memory 1103, third memory 1103) of the embodiment of the present application can be a volatile memory or a non-volatile memory, and can also include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a magnetic random access memory (FRAM), a flash memory, a magnetic surface memory, an optical disc, or a compact disc read-only memory (CD-ROM); the magnetic surface memory can be a disk memory or a tape memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), synchronous static random access memory (SSRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct rambus random access memory (DRRAM).The memories described in the embodiments of this application are intended to include, but are not limited to, these and any other suitable types of memories.

[1367] In an exemplary embodiment, the present application also provides a storage medium, namely a computer storage medium, specifically a computer-readable storage medium, which may include, for example, a first memory 903 storing a computer program. The computer program may be executed by the first processor 902 of the first network device 900 to complete the steps of the first network device-side method. Another example includes a second memory 1003 storing a computer program. The computer program may be executed by the second processor 1002 of the second network device 1000 to complete the steps of the second network device-side method. Another example includes a third memory 1103 storing a computer program. The computer program may be executed by the third processor 1102 of the third network device 1100 to complete the steps of the third network device-side method. The computer-readable storage medium may be a memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface storage, optical disk, or CD-ROM.

[1368] Illustratively, an embodiment of the present application further provides a computer program product, including a computer program. The computer program can be executed by the first processor 902 of the first network device 900 to perform the steps of the aforementioned first network device-side method. The computer program can be executed by the second processor 1002 of the second network device 1000 to perform the steps of the aforementioned second network device-side method. The computer program can be executed by the third processor 1102 of the third network device 1100 to perform the steps of the aforementioned third network device-side method.

[1369] It should be noted that "first", "second", etc. are used to distinguish similar objects, and are not necessarily used to describe a specific order or precedence. Polynomial can be two or more items, multiple can be two or more, and multiple can be two or more.

[1370] In addition, the technical solutions described in the embodiments of the present application can be combined arbitrarily without conflict.

[1371] The above description is merely a preferred embodiment of the present application and is not intended to limit the scope of protection of the present application.

Claims

1. A method for enhancing terminal mobility, characterized in that: Applied to a first network device, the method includes: obtaining first information; and / or Sending second information to one or more second network devices; wherein, The first information represents the movement trajectory prediction information of the first terminal in the multi-radio dual-connection MR-DC scenario; the second information represents the relevant configuration or signaling used to collect or obtain the real or measured movement trajectory of the first terminal.

2. The method according to claim 1, characterized in that After obtaining the first information, the method further includes: Sending the first information to one or more second network devices; and / or The first information is sent to one or more third network devices.

3. The method according to claim 1, characterized in that The obtaining of the first information includes one or more of the following: Generate first information; the first information includes movement trajectory prediction information of the first terminal in the MR-DC scenario for the second network device, and / or movement trajectory prediction information of the first terminal in the MR-DC scenario for the first network device and / or the third network device; Predicting first information using the first model; the first information includes movement trajectory prediction information of the first terminal in an MR-DC scenario for the second network device, and / or movement trajectory prediction information of the first terminal in an MR-DC scenario for the first network device and / or a third network device; First information sent by a third network device is received, where the first information is movement trajectory prediction information of the first terminal in an MR-DC scenario for the first network device and / or the third network device.

4. The method according to any one of claims 1 to 3, characterized in that The first information includes one or more of the following: First cell information, where the first cell information represents relevant information of a primary cell (PCell); Second cell information, where the second cell information represents relevant information of a primary and secondary cell (PSCell) and / or a secondary node (SN); Third cell information, where the third cell information represents relevant information of the master cell group MCG; Fourth cell information, where the fourth cell information represents relevant information of a secondary cell group SCG; Fifth cell information, where the fifth cell information represents relevant information about an SCG activation state or a deactivation state; third information, where the third information is used to indicate a time during which the first terminal is in a single connection state or an MR-DC state; The data volume of the first terminal.

5. The method according to claim 4, characterized in that The first cell information includes at least one or more of the following: Identifications of one or more PCells of a next-hop or multi-hop second network device of the first network device; identifiers of one or more PCells of the first network device; Identifications of one or more PCells of the third network device.

6. The method according to claim 4, characterized in that The second cell information includes one or more of the following: PSCell's logo; PSCell list; SN logo; SN list; The expected average downlink signal quality or average downlink signal strength when connected to each PSCell; The expected average downlink signal quality or average downlink signal strength when connected to each SN; a duration for which the first terminal maintains a connection with each PSCell; The time when the first terminal establishes a connection with each PSCell; a probability of the first terminal adding each PSCell; The duration of the connection between the first terminal and each SN; The time when the first terminal establishes a connection with each SN; The probability of the first terminal adding each SN.

7. The method according to claim 4, characterized in that The third cell information includes: The identity of the cell included in the MCG; and / or The duration that each cell included in the MCG serves as a serving cell.

8. The method according to claim 4, characterized in that The fourth cell information includes: The identity of the cell contained in the SCG; and / or The duration during which each cell included in the SCG serves as a serving cell.

9. The method according to claim 4, characterized in that The fifth cell information includes one or more of the following: SCG activation status information; SCG deactivation status information; The moment or duration of SCG activation; The time or duration of SCG deactivation; The moment or duration of the SCG activation state change; The moment or duration when the SCG deactivation state changes.

10. The method according to claim 4, characterized in that The third information includes one or more of the following: An estimated starting time for the first terminal to establish the MR-DC; an estimated duration for the first terminal to be in the MR-DC state; an estimated time when the first terminal releases the MR-DC; an estimated start time when the first terminal enters a single connection state; an estimated time when the first terminal enters a single connection state; The estimated duration of time that the first terminal is in a single connection state.

11. The method according to claim 2, characterized in that Before predicting and obtaining the first information using the first model, the method further includes: Training the first model based on fourth information, wherein the fourth information represents input information of the first model; and / or The first model is modified and / or retrained and / or iteratively updated according to fifth information, where the fifth information represents relevant information of the real or measured movement trajectory of the first terminal.

12. The method according to claim 11, characterized in that The fourth information includes one or more of the following: Current PSCell information; Historical PSCell related information; The PCell and / or PSCell to which the first terminal and / or the second terminal is currently connected, the second terminal representing a terminal different from the first terminal; the PCell and / or PSCell to which the first terminal and / or the second terminal is historically connected, the second terminal representing a terminal different from the first terminal; The historical movement trajectory of the first terminal and / or the second terminal, where the second terminal represents a terminal different from the first terminal.

13. The method according to claim 11, characterized in that The method further comprises: The fourth information is obtained.

14. The method according to claim 13, characterized in that Obtaining the fourth information includes one or more of the following: receiving fourth information sent by the first terminal and / or a second terminal, where the second terminal represents a terminal different from the first terminal; receiving fourth information reported by one or more fourth network devices; A first request is sent to one or more fourth network devices, and fourth information fed back by the one or more fourth network devices is received; the first request is used to request to obtain the fourth information.

15. The method according to claim 1, wherein The second information includes one or more of the following: first configuration information, where the first configuration information is used to indicate whether or not it is necessary to record and / or measure and / or collect and / or feed back the actual or measured movement trajectory of the first terminal or information related to the movement trajectory; second configuration information, where the second configuration information is used to instruct recording and / or measurement and / or collection and / or feedback of a real or measured movement trajectory or related information of the movement trajectory of the first terminal; third configuration information, where the third configuration information is used to indicate a first condition for starting measurement and / or recording and / or collection and / or feedback of a real movement trajectory of the first terminal; Fourth configuration information, where the fourth configuration information is used to indicate a second condition for ending or stopping measuring and / or recording and / or collecting the real movement trajectory of the first terminal; Fifth configuration information, where the fifth configuration information is used to instruct recording and / or measurement and / or collection and / or feedback of a real or measured movement trajectory or related information of the movement trajectory of the first terminal within a first time period; Sixth configuration information, the sixth configuration information is used to indicate the duration, maximum duration, deadline, or latest time of feedback of the fifth information or the sixth information, the fifth information represents the actual or measured movement trajectory of the first terminal, and the sixth information represents abnormal information that cannot feedback the fifth information; wherein, In the absence of the third configuration information or the first condition, it represents that the first terminal starts measuring and / or recording and / or collecting the actual movement trajectory or relevant information of the movement trajectory of the first terminal when entering the range of the second network device.

16. The method according to claim 15, characterized in that The first configuration information is used to indicate one or more of the following: Recording and / or measuring and / or collecting and / or feeding back relevant information of a real or measured movement trajectory of the first terminal in a single connection state after the first terminal successfully accesses or switches to the second network device; Recording and / or measuring and / or collecting and / or feeding back relevant information of the real or measured movement trajectory of the first terminal in only the MR-DC state after the first terminal successfully accesses or switches to the second network device; Recording and / or measuring and / or collecting and / or feeding back relevant information of the PCell to which the first terminal is connected after successfully accessing or switching to the second network device; Recording and / or measuring and / or collecting and / or feeding back relevant information of the PSCell to which the first terminal is connected after successfully accessing or switching to the second network device; Record and / or measure and / or collect and / or feedback relevant information of the real or measured movement trajectory of the first terminal in the single connection state and MR-DC state after successfully accessing or switching to the second network device.

17. The method according to claim 15, characterized in that The second configuration information is used to instruct the second network device to record and / or measure and / or collect and / or feedback one or more of the following information related to the real or measured movement trajectory of the first terminal: PCell related information; Information about MCG; SN related information; PSCell related information; Information about SCG; The duration of SCG activation; The duration of SCG deactivation; The time when the first terminal establishes the MR-DC; duration of the first terminal being in the MR-DC state; The moment when the first terminal releases MR-DC; The location information of the first terminal when connected to the PSCell.

18. The method according to claim 15, characterized in that The first condition includes one or more of the following: The first terminal establishes an MR-DC within a range of the second network device; The first information does not contain a target PSCell that the first terminal successfully adds or switches to; The PSCell for actually establishing the MR-DC by the first terminal does not match the PSCell in the first information; At a start time when the first terminal is expected to establish the MR-DC, the first terminal fails to successfully establish the MR-DC; The first terminal fails in the MR-DC state; The first terminal fails in the MR-DC state and finds the PSCell to restore the SN connection; The first terminal fails in the MR-DC state and the SN connection is not restored within a set time period; The first terminal successfully switches to the second network device; The first terminal establishes a connection with the second network device, or the first terminal successfully accesses the second network device.

19. The method according to claim 15, characterized in that The second condition includes one or more of the following: The first terminal fails in the MR-DC state; The first terminal fails in the MR-DC state and finds the PSCell to restore the SN connection; The first terminal fails in the MR-DC state and the SN connection is not restored within a set time period; The first information does not contain a target PSCell that the first terminal successfully adds or switches to; The PSCell where the first terminal actually establishes the MR-DC does not match the PSCell in the first information.

20. The method according to claim 15, wherein The fifth configuration information is used to indicate one or more of the following: At the start of the first time period, start measuring and / or recording and / or collecting relevant information of the real or measured movement trajectory of the first terminal; When the first condition is met, start measuring and / or recording and / or collecting relevant information of the real or measured movement trajectory of the first terminal; When the first terminal successfully accesses or switches to the second network device, start measuring and / or recording and / or collecting relevant information of the real or measured movement trajectory of the first terminal; When the first time period ends or the first time period expires, stop or end measuring and / or recording and / or collecting relevant information of the real or measured movement trajectory of the first terminal; When the first time period ends or expires, information related to the real or measured movement trajectory of the first terminal is sent to or fed back to the first network device.

21. The method according to any one of claims 1 to 3 and 5 to 20, characterized in that After sending the second information to one or more second network devices, the method further includes: Receive fifth information or sixth information sent by one or more second network devices based on the second information, where the fifth information represents relevant information of the real or measured movement trajectory of the first terminal, and the sixth information represents abnormal information that the fifth information cannot be fed back.

22. The method according to claim 21, characterized in that The fifth information includes one or more of the following: A first condition for starting measurement and / or recording and / or collection of a real movement trajectory of the first terminal; A second condition for ending or stopping measuring and / or recording and / or collecting the real movement trajectory of the first terminal; seventh information, where the seventh information represents a reason or related information why the actual state of the first terminal does not match the movement trajectory prediction information represented by the first information; PCell's logo; a dwell time of the first terminal in the PCell; The identifiers of the cells included in the MCG; The duration that each cell included in the MCG serves as a serving cell; SN logo; PSell's logo; an average downlink signal quality or average downlink signal strength that can be achieved when the first terminal is connected to the SN; The duration of the connection between the first terminal and the SN; an average downlink signal quality or average downlink signal strength achievable by the first terminal when connected to the PSell; a duration during which the first terminal maintains a connection with the PSell; The identity of the cell included in the SCG; The duration that each cell included in the SCG serves as a serving cell; The moment or duration of SCG activation; The time or duration of SCG deactivation; The time when the first terminal establishes the MR-DC within a first time period, where the first time period represents a time period for measuring or collecting the movement trajectory of the first terminal; a duration during which the first terminal is in the MR-DC state within a first time period, where the first time period represents a time period for measuring or collecting a movement trajectory of the first terminal; a time when the first terminal releases the MR-DC within a first time period, where the first time period represents a time period for measuring or collecting a movement trajectory of the first terminal; The average data volume of the first terminal in a first time period, where the first time period represents a time period for measuring or collecting the movement trajectory of the first terminal.

23. The method according to claim 22, characterized in that The seventh information includes one or more of the following: The first information does not contain a target PSCell that the first terminal successfully adds or switches to; The PSCell for actually establishing the MR-DC by the first terminal does not match the PSCell in the first information; Measurement information related to a target PSCell successfully added or switched by the first terminal; A start time of a target PSCell successfully added or switched by the first terminal; A retention duration of a target PSCell successfully added or switched by the first terminal; location information of the first terminal when the first terminal successfully adds or switches to a target PSCell; No PSCells were measured; No PSCell was found that could be used to establish or restore the SN connection; The service or data volume of the first terminal does not require the establishment of an MR-DC; an identifier of a PSCell in which the first terminal fails in the MR-DC state; The identifier of the PSCell used to restore the SN connection; PSCell-related measurement information used to restore SN connection; The starting time when the first terminal is connected to the PSCell used to restore the SN connection; The duration for which the first terminal is connected to the PSCell used to restore the SN connection; The location information of the first terminal when the first terminal is connected to the PSCell used to restore the SN connection.

24. The method according to claim 21, wherein The sixth information includes one or more of the following: Abnormal indication information, where the abnormal indication information is used to indicate a sending error or failure of the second network device, and / or is used to indicate that complete fifth information cannot be obtained by measuring according to the fourth information; Exception reason value.

25. The method according to claim 24, characterized in that The exception reason value is used to indicate one or more of the following: No PSCells were measured; No PSCell was found that could be used to establish or restore the SN connection; The service or data volume of the first terminal does not require the establishment of an MR-DC; The reason why the first terminal fails to establish the MR-DC; a reason why the first terminal fails in the MR-DC state; The reason why the first terminal did not restore the SN connection after sending failed in the MR-DC state.

26. The method according to claim 21, characterized in that The method further comprises: When the sixth information is received, the context or configuration information of the first terminal is released.

27. The method according to claim 14, wherein The fourth network device includes one or more of the following: Neighboring nodes of the source master node MN; target MN; Candidate target MN; Source SN; Target SN; Candidate target SN.

28. A method for enhancing terminal mobility, characterized in that: Applied to a third network device, the method includes: Obtaining first information, and / or Sending first information to the first network device; wherein, The first information represents movement trajectory prediction information for the first terminal in the MR-DC scenario.

29. The method according to claim 28, characterized in that The method further comprises: A first operation is performed according to the first information, where the first operation represents preparation or preprocessing operations related to adding, changing, activating, or deactivating SN and / or PSCell.

30. The method according to claim 29, wherein The first operation includes one or more of the following: Determining whether to configure MR-DC for the first terminal; Select candidate PSCells; Allocate candidate SN reserved resources; Determining a time to configure MR-DC for the first terminal; Configuring or pre-configuring transmission resources in an MR-DC scenario for the first terminal; Adjust the transmission resources in the MR-DC scenario configured for the first terminal.

31. The method according to any one of claims 28 to 30, characterized in that The obtaining of the first information includes one or more of the following: Generate first information, where the first information is movement trajectory prediction information of the first terminal in an MR-DC scenario for the first network device and / or the third network device; receiving first information sent by a first network device; the first information including movement trajectory prediction information of the first terminal in an MR-DC scenario for the second network device, and / or movement trajectory prediction information of the first terminal in an MR-DC scenario for the first network device and / or a third network device; The first information is predicted by the second model; the first information includes movement trajectory prediction information of the first terminal in the MR-DC scenario for the first network device and / or the third network device.

32. The method according to claim 31, characterized in that The method further comprises: The second model is trained based on fourth information, where the fourth information represents input information of the second model.

33. A method for enhancing terminal mobility, characterized in that: Applied to the second network device, the method includes: Receive first information and / or second information sent by a first network device, where the first information represents mobile trajectory prediction information for the first terminal in an MR-DC scenario, and the second information represents relevant configuration or signaling for collecting or obtaining a real or measured mobile trajectory of the first terminal.

34. The method according to claim 33, wherein The method further comprises: A second operation is performed according to the second information.

35. The method according to claim 34, wherein The second operation includes one or more of the following: Initiate measurement and / or record relevant information of the real or measured movement trajectory of the first terminal; Stop measuring and / or recording relevant information of the real or measured movement trajectory of the first terminal; Sending or feeding back fifth information or sixth information to the first network device, where the fifth information represents relevant information about the actual or measured movement trajectory of the first terminal, and the sixth information represents abnormal information that the fifth information cannot be fed back; Sending eighth information to the fifth network device, where the eighth information represents relevant configuration or signaling for recording and / or measuring and / or collecting and / or feeding back the real or measured movement trajectory of the first terminal; Receive fifth information or ninth information sent by the fifth network device according to the eighth information, where the fifth information represents relevant information of the real or measured movement trajectory of the first terminal, and the ninth information represents abnormal information that the fifth information cannot be fed back.

36. The method according to claim 35, characterized in that The eighth information includes one or more of the following: Seventh configuration information, where the seventh configuration information is used to indicate whether or not it is necessary to record and / or measure and / or collect and / or feed back the actual or measured movement trajectory of the first terminal or information related to the movement trajectory; Eighth configuration information, where the eighth configuration information is used to instruct recording and / or measurement and / or collection and / or feedback of a real or measured movement trajectory or related information of the movement trajectory of the first terminal; Ninth configuration information, the ninth configuration information is used to instruct recording and / or measurement and / or collection and / or feedback of the actual or measured movement trajectory or related information of the movement trajectory of the first terminal in the second time period.

37. The method according to claim 36, wherein The eighth configuration information is used to instruct the fifth network device to record and / or measure and / or collect and / or feed back one or more of the following information of the first terminal in the MR-DC state: PSell related information; Information about SCG; SN related information; The duration of SCG activation; The duration of SCG deactivation; The time when the first terminal establishes the MR-DC; duration of the first terminal being in the MR-DC state; The moment when the first terminal releases MR-DC; A performance indicator of the first terminal within the range of the fourth network device.

38. The method according to claim 36, characterized in that The ninth configuration information is used to indicate one or more of the following: The starting time of the second time period is the time when the first terminal establishes a connection with the target SN; At a start time of the second time period, start measuring and / or recording and / or collecting relevant information of the real or measured movement trajectory of the first terminal; When the end moment of the second time period is reached or the second time period expires, stopping or ending the measurement and / or recording and / or recording relevant information of the real or measured movement trajectory of the first terminal; When the second time period ends or expires, information related to the real or measured movement trajectory of the first terminal is sent to or fed back to the first network device.

39. The method according to any one of claims 33 to 38, characterized in that The method further comprises: A first operation is performed according to the first information, where the first operation represents preparation or preprocessing operations related to adding, changing, activating, or deactivating SN and / or PSCell.

40. The method according to claim 39, wherein The first operation includes one or more of the following: Determining whether to configure MR-DC for the first terminal; Select a candidate SN; Instructing the candidate SN to reserve resources for the first terminal; Determining a time to configure MR-DC for the first terminal; Configuring or pre-configuring transmission resources in an MR-DC scenario for the first terminal; Adjusting transmission resources in the MR-DC scenario configured for the first terminal; Determine the time to activate SN; Activate SN in advance; Determine when to activate the PSCell; Activate PSCell in advance; Determine the time to deactivate the SN; Determine when to deactivate the PSCell.

41. A terminal mobility enhancement device, characterized in that: include: A first acquiring unit, configured to acquire first information; and / or The first sending unit is configured to send second information to one or more second network devices; wherein, The first information represents movement trajectory prediction information for the first terminal in the MR-DC scenario; the second information represents relevant configuration or signaling for collecting or obtaining the actual or measured movement trajectory of the first terminal.

42. A terminal mobility enhancement device, characterized in that: include: A second acquiring unit, configured to acquire first information; and / or The second sending unit is configured to send the first information to the first network device; wherein the first information represents movement trajectory prediction information for the first terminal in the MR-DC scenario.

43. A terminal mobility enhancement device, characterized in that: include: A first receiving unit is used to receive first information and / or second information sent by a first network device, where the first information represents the mobile trajectory prediction information for the first terminal in the MR-DC scenario, and the second information represents the relevant configuration or signaling used to collect or obtain the actual or measured mobile trajectory of the first terminal.

44. A first network device, characterized in that: include: A first processor and a first communication interface; wherein, The first processor is configured to obtain first information, where the first information represents movement trajectory prediction information for the first terminal in an MR-DC scenario; and / or The first communication interface is used to send second information to one or more second network devices, where the second information represents relevant configuration or signaling for collecting or obtaining the real or measured movement trajectory of the first terminal.

45. A second network device, characterized in that: include: A second processor and a second communication interface; wherein the second communication interface is used to receive first information and / or second information sent by the first network device, the first information represents the mobile trajectory prediction information for the first terminal in the MR-DC scenario, and the second information represents the relevant configuration or signaling used to collect or obtain the actual or measured mobile trajectory of the first terminal.

46. ​​A third network device, characterized in that: include: The third processor and the third communication interface; wherein, The third processor is configured to obtain first information; The third communication interface is used to send the first information to the first network device; wherein, The first information represents movement trajectory prediction information for the first terminal in the MR-DC scenario.

47. A network device, characterized in that: comprising a processor and a memory for storing a computer program capable of being executed on the processor, When the processor is used to run the computer program, it executes the steps of the method described in any one of claims 1 to 27, or executes the steps of the method described in any one of claims 28 to 32, or executes the steps of the method described in any one of claims 33 to 40.

48. A storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 27, or implements the steps of the method according to any one of claims 28 to 32, or performs the steps of the method according to any one of claims 33 to 40.

49. A computer program product comprising a computer program, characterized in that The computer program implements the steps of the method according to any one of claims 1 to 40 when executed by a processor.

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