RU2849751C2 - Method and device for controlling terminal mobility - Google Patents

Abstract

FIELD: communication.

SUBSTANCE: method of managing terminal mobility performed by a terminal includes receiving information configured for conditional mobility and transmitted by a network device, wherein the information configured for conditional mobility contains one of the following: conditional handover configuration and conditional primary secondary cell (PSCell) change configuration; conditional handover configuration and conditional PSCell addition configuration; and performing conditional mobility according to satisfaction of a conditional mobility performance condition.

EFFECT: technical result of the invention is to improve the reliability and accuracy of mobility management.

19 cl, 15 dwg

Description

CROSS-REFERENCES TO RELATED APPLICATIONS

[0001] This application is an application of the Russian Federation national phase of international application No. PCT/CN2022/088631, filed on April 22, 2022, the entire contents of which are fully incorporated herein by reference.

AREA OF TECHNOLOGY

[0002] The disclosure of the present invention relates to the field of communication technologies, and more specifically, to a method and device for managing the mobility of a terminal, as well as to a data carrier.

PREREQUISITES FOR THE CREATION OF THE INVENTION

[0003] A terminal with dual connectivity (DC) can access two cell groups, which are respectively referred to as a Master Cell Group (MCG) and a Secondary Cell Group (SCG). The MCG corresponds to a Master Node (MN), and the SCG corresponds to a Secondary Node (SN).

[0004] In the existing system, a terminal can implement conditional mobility according to a condition configured by a network device and an associated suitable cell. The condition configured by the network device may be a specific event based on a measurement result, a location-based event, a time-based event, etc. The terminal can implement MCG mobility by performing conditional handover and implement SCG mobility by performing conditional addition of a Primary Secondary Cell (PSCell) or conditional change of a PSCell.

[0005] However, this conditional mobility is only applicable to scenarios in which conditional handover or conditional PSCell addition/conditional PSCell change are configured separately, and conditional handover and conditional PSCell addition/conditional PSCell change are not supported at the same time.

ESSENCE OF THE INVENTION

[0006] According to a first aspect of embodiments of the present invention, a method for managing the mobility of a terminal is provided. The method is performed by the terminal and includes:

[0007] receiving information configured for conditional mobility and transmitted by a network device, wherein the information configured for conditional mobility comprises one of the following: a conditional handover configuration and a conditional PSCell change configuration; a conditional handover configuration and a conditional PSCell add configuration; and

[0008] performing conditional mobility according to satisfying the condition for performing conditional mobility.

[0009] According to a second aspect of embodiments of the present invention, a method for managing the mobility of a terminal is provided. The method is performed by a network device and includes:

[0010] transmitting to the terminal information configured for conditional mobility, wherein the information configured for conditional mobility comprises one of the following: a conditional handover configuration and/or a conditional PSCell change configuration; a conditional handover configuration and/or a conditional PSCell addition configuration.

[0011] According to a third aspect of the embodiments of the present invention, a terminal is provided. The terminal comprises a processor and a memory in which a computer program executed by the processor is stored. The processor is configured to perform the method according to the first aspect.

[0012] According to a fourth aspect of the embodiments of the present invention, a network device is provided. The network device comprises a processor and a memory in which a computer program executed by the processor is stored. The processor is configured to perform the method according to the second aspect.

[0013] According to a fifth aspect of embodiments of the present invention, a computer-readable medium is provided for storing instructions that, when executed by a processor, cause the processor to perform the method according to the first aspect.

[0014] According to a sixth aspect of embodiments of the present invention, a computer-readable medium is provided for storing instructions that, when executed by a processor, cause the processor to perform the method according to the second aspect.

BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly explain the technical solutions according to the embodiments of the present invention or the prior art, the drawings used in describing the embodiments are briefly described below.

[0016] Fig. 1 schematically shows the architecture of a communication system in accordance with an embodiment of the present invention.

[0017] Fig. 2 shows a flow chart of a method for managing terminal mobility in accordance with an embodiment of the present invention.

[0018] Fig. 3 shows a flow chart of a method for managing terminal mobility in accordance with an embodiment of the present invention.

[0019] Fig. 4 shows a flow chart of a method for managing terminal mobility in accordance with an embodiment of the present invention.

[0020] Fig. 5 shows a flow chart of a method for managing terminal mobility in accordance with an embodiment of the present invention.

[0021] Fig. 6a shows a flow chart of a method for managing terminal mobility in accordance with an embodiment of the present invention.

[0022] Fig. 6b shows a flow chart of a method for managing terminal mobility in accordance with an embodiment of the present invention.

[0023] Fig. 7 shows a flow chart of a method for managing terminal mobility in accordance with an embodiment of the present invention.

[0024] Fig. 8 shows a flow chart of a method for managing terminal mobility in accordance with an embodiment of the present invention.

[0025] Fig. 9 shows a flow chart of a method for managing terminal mobility in accordance with an embodiment of the present invention.

[0026] Fig. 10 shows a flow chart of a method for managing terminal mobility in accordance with an embodiment of the present invention.

[0027] Fig. 11 shows a flow chart of a method for managing terminal mobility in accordance with an embodiment of the present invention.

[0028] Fig. 12 shows a block diagram of a communication device in accordance with an embodiment of the present invention.

[0029] Fig. 13 shows a block diagram of another communication device in accordance with an embodiment of the present invention.

[0030] Fig. 14 shows a block diagram of a microcircuit in accordance with an embodiment of the present invention.

DETAILED DESCRIPTION

[0031] For better understanding, the terms used in describing the embodiments of the present invention are explained below.

[0032] 1. Primary Cell (PCell)

[0033] A master cell group (MCG) may contain multiple cells, one of which is used to initiate the initial access cell, and this cell is called a PCell. As the name implies, the PCell is the most “master” cell in the MCG.

[0034] 2. Secondary cell (SCell)

[0035] A secondary cell in an MCG is a SCell, wherein the PCell in the MCG and the SCell in the MCG are jointly combined by carrier aggregation (CA), and the MCG contains one or more SCells.

[0036] 3. Primary Secondary Cell (PSCell)

[0037] A PSCell is contained in a Secondary Cell Group (SCG), and the SCG contains one or more SCells.

[0038] 4. Conditional Transfer of Service

[0039] Based on a pre-configured condition, the terminal may select a target network device, initiate a handover process, and initiate random access to the target network device. The terminal may implement MCG mobility by performing a conditional handover.

[0040] 5. Conditional addition of PSCell

[0041] The terminal may determine a PSCell that can be added according to a preconfigured condition. The terminal may implement SCG mobility by performing conditional addition of a PSCell.

[0042] 6. Conditional change of PSCell

[0043] The terminal may determine an available target PSCell according to a preconfigured condition. The terminal may implement SCG mobility by performing a conditional change of PSCell.

[0044] 7. Condition-based mobility procedure

[0045] In the ^fifth generation (5G) mobile communication system, a terminal can perform a cell change based on a “preconfigured condition” of a network device and a “preconfigured cell” corresponding to this condition. If the terminal satisfies the “preconfigured condition,” for example, a specific measurement event, the terminal changes the serving cell to the “preconfigured cell.” The conditional mobility procedure includes conditional handover, conditional addition of PSCell, and conditional change of PSCell.

[0046] To better understand the method for managing terminal mobility according to the embodiments of the present invention, a communication system applicable to these embodiments is first described.

[0047] Fig. 1 schematically shows the architecture of a communication system according to an embodiment of the present invention. The communication system, not limited to the example given, may comprise a network device and a terminal, and the number and type of devices in Fig. 1 are shown only for example, which is not intended to limit the embodiments of the present invention, and in actual applications, two or more network devices, two or more auxiliary communication devices, two or more terminals may be used. The communication system shown in Fig. 1 comprises a main node 11, a terminal 12, and a secondary node 13.

[0048] It should be noted that the technical solutions according to the embodiments of the present invention are applicable to various communication systems. For example, they are applicable to the Long Term Evolution (LTE) system, the fifth generation (5G) mobile communication system, the 5G new radio technology (NR) system, or other future generation mobile communication systems.

[0049] The main node 11 and the secondary node 13 according to the embodiments of the present invention are entities for transmitting and receiving signals on the network side, and may be a main node and a secondary node corresponding to the terminal 12. For example, the main node 11 and the secondary node 13 may be an evolved base station (eNB), a transmission/reception point (TRP), a next generation NodeB (gNB) in the NR system, an access node in other future-generation mobile communication systems, or an access node in a wireless fidelity (WiFi) system. The specific technology and form of the network device are not limited to the embodiments of the present invention. The network device provided in the embodiments of the present invention may be composed of a central unit (CU) and a distributed unit (DU). The CU may also be called a control unit. A network device, such as a base station protocol layer, may be partitioned using a CU-DU structure, with the functions of some protocol layers managed in a set of CUs, and the functions of another or all remaining protocol layers distributed in a DU, and the DU managed by a set of CUs.

[0050] The terminal 12 according to the embodiments of the present invention is an object for receiving and transmitting a signal, such as a mobile phone, on the user side. The terminal may also be called a user equipment (UE), a mobile station (MS), a mobile terminal (MT), and the like. The terminal may be a vehicle equipped with communication means, an intelligent vehicle, a mobile phone, a wearable device, a tablet (Pad), a computer equipped with wireless transceiver functional units, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in an industrial process control system, a wireless terminal in a vehicle rental system, a wireless terminal in a remote surgery system, a wireless terminal in a smart grid, a wireless terminal in a transportation security system, a wireless terminal in a smart city, a wireless terminal in a smart home, and the like. The specific technology and form of device used by the terminal are not limited to the embodiments of the present invention.

[0051] It should be appreciated that the communication system described in accordance with the embodiments of the present invention serves to more clearly describe the technical solutions of the embodiments and is not intended to limit these solutions presented in the embodiments, and one skilled in the art may know that with the development of the system architecture and the introduction of new service scenarios, the technical solutions offered by the embodiments of the present invention are also applicable to similar technical problems.

[0052] In order to support the simultaneous configuration of conditional handover and conditional addition of PSCell/conditional change of PSCell, it is necessary to study a method for implementing the simultaneous configuration of conditional handover and conditional addition of PSCell/conditional change of PSCell. According to the disclosure of the present invention, a network device can transmit information configured for conditional mobility of the terminal to a terminal, and then the terminal can selectively perform conditional mobility according to the satisfaction of the conditional mobility performance condition in order to improve the reliability and accuracy of mobility management.

[0053] It should be noted that, according to the present disclosure, the method for managing terminal mobility presented in any embodiment can be performed separately or together with other possible embodiments or together with any technical solution used in the existing art.

[0054] The method and apparatus for managing the mobility of a terminal provided by the present disclosure will be described in detail below with reference to the accompanying drawings.

[0055] Fig. 2 shows a flow chart of a method for managing terminal mobility according to an embodiment of the present invention. As shown in Fig. 2, the method, not limited to the steps shown, may include the following steps.

[0056] Step 201: receiving information configured for conditional mobility and transmitted by a network device, wherein the information configured for conditional mobility comprises one of the following: a conditional handover configuration and/or a conditional PSCell change configuration; a conditional handover configuration and/or a conditional PSCell addition configuration.

[0057] The information configured for conditional mobility may comprise information about conditional reconfiguration.

[0058] Optionally, the information configured for the conditional mobility may comprise at least one of the following: a condition for performing the conditional mobility, configuration information of the target cell, an association relationship between the conditional handover and the conditional addition of the PSCell, an association relationship between the conditional handover and the conditional change of the PSCell.

[0059] Optionally, the conditional handover configuration may be associated with the conditional PSCell change configuration, or the conditional handover configuration may be associated with the conditional PSCell addition configuration. That is, the terminal may jointly receive the conditional handover and conditional PSCell change data configured by the network device, or the terminal may also jointly receive the conditional handover and conditional PSCell addition data configured by the network device. The combined configuration may indicate that the conditional handover configuration is associated with the conditional PSCell change configuration, or that the conditional handover configuration is associated with the conditional PSCell addition configuration, which is implicitly or explicitly indicated by the network device through transmitted information.

[0060] For example, a conditional handover configuration and a conditional PSCell change (or conditional PSCell addition) configuration may be included in the same configuration message, indicating that the conditional handover configuration is associated with the conditional PSCell change (or conditional PSCell addition) configuration.

[0061] Alternatively, the conditional handover configuration and the conditional PSCell change configuration may be respectively associated with the same configuration identifier indicating that the conditional handover configuration is associated with the conditional PSCell change configuration. Accordingly, the conditional handover configuration and the conditional PSCell addition configuration are respectively associated with the same configuration identifier indicating that the conditional handover configuration is associated with the conditional PSCell addition configuration. The configuration identifier may be any information that can be used to uniquely identify the combined configuration, such as a conditional reconfiguration number, which is not limited to the disclosure of the present invention.

[0062] Alternatively, the association of the conditional handover configuration and the conditional PSCell change (or conditional PSCell addition) configuration may be indicated by indicating the associated conditional PSCell change configuration or the associated conditional PSCell addition configuration in the conditional handover configuration.

[0063] Alternatively, the association of the conditional handover configuration and the conditional change PSCell configuration or the association of the conditional handover configuration and the conditional addition PSCell configuration may be indicated by indicating the associated conditional handover configuration in the conditional change PSCell configuration or the conditional addition PSCell configuration.

[0064] Alternatively, the association of the conditional handover configuration and the conditional change configuration of the PSCell or the association of the conditional handover configuration and the conditional addition configuration of the PSCell may be indicated by association information.

[0065] For example, an association of a conditional handover configuration and a conditional change configuration of a PSCell, or an association of a conditional handover configuration and a conditional addition configuration of a PSCell, may be indicated using information elements (IEs); or an association of a conditional handover configuration and a conditional change configuration of a PSCell, or an association of a conditional handover configuration and a conditional addition configuration of a PSCell, may be indicated using an association field.

[0066] Step 202: performing conditional mobility according to satisfying the conditional mobility performance condition.

[0067] According to the disclosure of the present invention, a terminal may evaluate a condition for performing conditional mobility, and when it is determined that the terminal satisfies any condition for performing conditional mobility, then the conditional mobility may be performed.

[0068] Optionally, when it is determined that the condition for performing the conditional handover is satisfied, the terminal may perform MCG mobility, or when it is determined that the condition for performing the conditional addition of the PSCell is satisfied, the terminal may perform SCG mobility, etc., which is not limited to the disclosure of the present invention.

[0069] According to the disclosure of the present invention, after receiving information configured for conditional mobility and transmitted by a network device, the terminal can perform conditional mobility according to the satisfaction of the condition for performing conditional mobility. In this way, according to the satisfaction of the condition for performing conditional mobility, the corresponding conditional mobility is selectively performed, thereby improving the reliability, accuracy and stability of mobility management.

[0070] Fig. 3 shows a flow chart of a method for managing terminal mobility according to an embodiment of the present invention. As shown in Fig. 3, the method, not limited to the steps shown, may include the following steps.

[0071] Step 301: receiving information configured for conditional mobility and transmitted by a network device, wherein the information configured for conditional mobility comprises one of the following: a conditional handover configuration and/or a conditional PSCell change configuration; a conditional handover configuration and/or a conditional PSCell addition configuration.

[0072] According to the disclosure of the present invention, the process performed in step 301 can be understood by referring to the detailed description of any embodiment, and this information is not repeated here.

[0073] Step 302: Start a timer if the condition for performing a conditional handover is satisfied.

[0074] Step 303: performing a conditional handover and a conditional change of the PSCell, or performing a conditional handover and a conditional addition of the PSCell, if the timer has not expired and the condition for performing a conditional change of the PSCell or the condition for performing a conditional addition of the PSCell is satisfied.

[0075] Optionally, if the timer has not expired and the terminal satisfies the condition for performing a conditional change of PSCell or the condition for performing a conditional addition of PSCell, then regardless of whether the condition for performing a conditional handover is satisfied at this time, the terminal may perform a conditional handover and a conditional change of PSCell (or a conditional addition of PSCell). That is, configurations corresponding to a conditional handover and a conditional change of PSCell (or a conditional addition of PSCell) are applicable, for example, RRC reconfiguration.

[0076] Optionally, if the timer has not expired and the terminal satisfies the condition for performing the conditional change of the PSCell, then if the condition for performing the conditional handover is still satisfied, that is, the terminal simultaneously satisfies the conditions for performing the conditional handover and the conditional change of the PSCell, the conditional handover and the conditional change of the PSCell may be performed.

[0077] Optionally, if the timer has not expired and the terminal satisfies the condition for performing the conditional addition of the PSCell, then if the condition for performing the conditional handover is still satisfied, that is, the terminal simultaneously satisfies the conditions for performing the conditional handover and the conditional addition of the PSCell, the conditional handover and the conditional addition of the PSCell may be performed.

[0078] Optionally, if the timer has not expired, the timer may be stopped if the terminal satisfies the conditional PSCell change execution condition or the conditional PSCell add execution condition.

[0079] According to the disclosure of the present invention, after receiving information configured for conditional mobility and transmitted by a network device, the terminal starts a timer if the condition for performing conditional handover is satisfied and performs conditional handover and conditional change of PSCell, or performs conditional handover and conditional addition of PSCell if the timer has not expired and the condition for performing conditional change of PSCell or the condition for performing conditional addition of PSCell is satisfied. In this way, according to the satisfaction of the condition for performing conditional mobility, the corresponding conditional mobility is selectively performed, thereby improving the reliability, accuracy and robustness of mobility management.

[0080] Fig. 4 shows a flow chart of a method for managing terminal mobility according to an embodiment of the present invention. As shown in Fig. 4, the method, not limited to the steps shown, may include the following steps.

[0081] Step 401: receiving information configured for conditional mobility and transmitted by a network device, wherein the information configured for conditional mobility comprises one of the following: a conditional handover configuration and/or a conditional PSCell change configuration; a conditional handover configuration and/or a conditional PSCell addition configuration.

[0082] Step 402: Starting a timer if the condition for performing a conditional handover is satisfied.

[0083] According to the disclosure of the present invention, the process performed in steps 401 and 402 can be understood by referring to the detailed description of any embodiment, and this information is not repeated hereinafter.

[0084] Step 403: Performing a conditional handover after the timer expires.

[0085] According to an embodiment of the present invention, after the timer expires, the terminal may apply a configuration corresponding to the conditional handover to perform the conditional handover, for example, an RRC reconfiguration associated with the conditional handover is applied.

[0086] Optionally, after the timer expires, if the terminal still does not satisfy the condition for performing the conditional PSCell change or the conditional PSCell addition, the terminal may apply the configuration corresponding to the conditional handover to perform the conditional handover, for example, apply the RRC reconfiguration associated with the conditional handover.

[0087] Optionally, after the timer expires, the terminal may delete the information configured for conditional mobility.

[0088] Optionally, the terminal deleting the information configured for the conditional mobility includes deleting one or more of the following: a condition for performing the conditional mobility, configuration information of the target cell, an association relationship between the conditional handover and the conditional addition of the PSCell, and an association relationship between the conditional handover and the conditional change of the PSCell.

[0089] Optionally, after the timer expires, the terminal may delete the conditional handover configuration and/or the conditional PSCell change (or conditional PSCell add) configuration associated with the conditional handover.

[0090] Optionally, after the timer expires, the terminal may delete all or part of the conditional handover configuration. Optionally, after the timer expires, the terminal may delete all or part of the conditional PSCell change (or conditional PSCell add) configuration. Optionally, after the timer expires and if the condition for performing the conditional handover is met, the conditional handover may be performed.

[0091] Optionally, after the timer expires and if the condition for performing a conditional handover is satisfied, a conditional handover may be performed even if the condition for performing a conditional PSCell change is not satisfied.

[0092] According to the disclosure of the present invention, after receiving information configured for conditional mobility and transmitted by a network device, the terminal starts a timer if the condition for performing conditional handover is satisfied, and performs conditional handover after the conditional handover timer expires. In this way, according to the condition for performing conditional mobility being satisfied, the corresponding conditional mobility is selectively performed, thereby improving the reliability, accuracy, and robustness of mobility management.

[0093] Fig. 5 shows a flow chart of a method for managing terminal mobility according to an embodiment of the present invention. As shown in Fig. 5, the method, not limited to the steps shown, may include the following steps.

[0094] Step 501: receiving information configured for conditional mobility and transmitted by a network device, wherein the information configured for conditional mobility comprises one of the following: a conditional handover configuration and/or a conditional PSCell change configuration; a conditional handover configuration and/or a conditional PSCell addition configuration.

[0095] Step 502: Start a timer if the condition for performing a conditional handover is satisfied.

[0096] According to the disclosure of the present invention, the process performed in steps 501 and 502 can be understood by referring to the detailed description of any embodiment, and this information is not repeated hereinafter.

[0097] Step 503: after a predetermined timer has expired, determine whether the condition for performing conditional mobility is satisfied.

[0098] It is optionally determined whether the condition for performing a conditional handover and a conditional PSCell change is satisfied after a predetermined timer has expired.

[0099] It is optionally determined whether the condition for performing a conditional handover and a conditional addition of a PSCell is satisfied after a predetermined timer has expired.

[0100] It is optionally determined whether the condition for performing a conditional handover and the condition for performing a conditional change of PSCell are satisfied after a predetermined timer has expired.

[0101] It is optionally determined whether the condition for performing a conditional handover and the condition for performing a conditional addition of a PSCell are satisfied after a predetermined timer has expired.

[0102] According to the disclosure of the present invention, after a predetermined timer expires, the terminal may re-determine whether the condition for performing conditional mobility is satisfied.

[0103] Optionally, after the timer expires, the terminal may re-determine whether the condition for performing the conditional handover and the conditional PSCell change is satisfied.

[0104] Optionally, after the timer expires, the terminal may re-determine whether the condition for performing the conditional handover and conditional addition of the PSCell is satisfied.

[0105] Optionally, after the timer expires, the terminal may re-determine whether the condition for performing a conditional handover and the condition for performing a conditional PSCell change are satisfied.

[0106] Optionally, after the timer expires, the terminal may re-determine whether the condition for performing a conditional handover and the condition for performing a conditional addition of a PSCell are satisfied.

[0107] According to the disclosure of the present invention, after receiving information configured for conditional mobility and transmitted by a network device, the terminal starts a timer if the condition for performing conditional handover is satisfied, and restarts the timer to determine whether the condition for performing conditional handover and conditional change of PSCell is satisfied after the timer expires. In this way, according to the satisfaction of the condition for performing conditional mobility, the corresponding conditional mobility is selectively performed, thereby improving the reliability, accuracy and robustness of mobility management.

[0108] Fig. 6a shows a flow chart of a method for managing terminal mobility according to an embodiment of the present invention. As shown in Fig. 6a, the method, which is not limited to the steps shown, may include the following steps.

[0109] Step 601: receiving information configured for conditional mobility and transmitted by a network device, wherein the information configured for conditional mobility comprises one of the following: a conditional handover configuration and/or a conditional PSCell change configuration; a conditional handover configuration and/or a conditional PSCell addition configuration.

[0110] According to the disclosure of the present invention, the process performed in step 601 can be understood by referring to the detailed description of any embodiment, and this information is not provided again hereinafter.

[0111] Step 602: performing a conditional handover and a conditional change of the PSCell if the condition for performing the conditional handover and the condition for performing the conditional change of the PSCell are satisfied.

[0112] According to the disclosure of the present invention, a terminal may evaluate a condition for performing a conditional handover and a condition for performing a conditional change of a PSCell, respectively, to determine whether the terminal satisfies the condition for performing a conditional handover and the condition for performing a conditional change of a PSCell, and if the condition for performing a conditional handover and the condition for performing a conditional change of a PSCell are satisfied, the conditional handover and the conditional change of a PSCell may be performed.

[0113] Optionally, the terminal may perform a conditional handover and a conditional addition of a PSCell if it is determined that the condition for performing a conditional handover and the condition for performing a conditional addition of a PSCell are satisfied.

[0114] That is, the terminal may separately evaluate the condition of performing a conditional handover and the condition of performing a conditional addition of a PSCell to determine whether the terminal satisfies the condition of performing a conditional handover and the condition of performing a conditional addition of a PSCell, and if the condition of performing a conditional handover and the condition of performing a conditional addition of a PSCell are satisfied, the conditional handover and the conditional addition of a PSCell may be performed.

[0115] For example, a condition for performing a conditional handover is that a first measurement value is greater than a first threshold value, a condition for performing a conditional change of the PSCell is that a second measurement value is greater than a second threshold value, wherein the terminal may judge whether the first measurement value is greater than the first threshold value and whether the second measurement value is greater than the second threshold value, and if it is determined that the first measurement value is greater than the first threshold value and the second measurement value is greater than the second threshold value, then a conditional handover and a conditional change of the PSCell may be performed.

[0116] Optionally, the first measurement value and the second measurement value may be the same measured value or different measured values, which is not limited by the disclosure of the present invention.

[0117] According to the disclosure of the present invention, after receiving information configured for conditional mobility and transmitted by a network device, the terminal can perform a conditional handover and a conditional change of PSCell (or a conditional addition of PSCell) if the condition for performing the conditional handover and the condition for performing the conditional change of PSCell (or a conditional addition of PSCell) are satisfied. In this way, according to the satisfaction of the conditional mobility performance condition, the corresponding conditional mobility is selectively performed, thereby improving the reliability, accuracy and robustness of mobility management.

[0118] Fig. 6b shows a flow chart of a method for managing terminal mobility according to an embodiment of the present invention. As shown in Fig. 6b, the method, which is not limited to the steps shown, may include the following steps.

[0119] Step 601b: receiving information configured for conditional mobility and transmitted by a network device, wherein the information configured for conditional mobility comprises one of the following: a conditional handover configuration and/or a conditional PSCell change configuration; a conditional handover configuration and/or a conditional PSCell addition configuration.

[0120] According to the disclosure of the present invention, the process performed in step 601b can be understood by referring to the detailed description of any embodiment, and this information is not provided again hereinafter.

[0121] Step 602b: performing conditional handover and conditional PSCell change if the condition for performing conditional handover and conditional PSCell change is satisfied.

[0122] According to the disclosure of the present invention, a terminal may evaluate the condition for performing a conditional handover and a conditional change of a PSCell to determine whether the terminal satisfies the conditions for performing a conditional handover and a conditional change of a PSCell, and if the conditions for performing a conditional handover and a conditional change of a PSCell are satisfied, the conditional handover and a conditional change of a PSCell may be performed. The condition for performing a conditional handover and the condition for performing a conditional change of a PSCell are the same.

[0123] Optionally, the execution conditions of the conditional handover and the conditional change of the PSCell are the same execution condition. For example, the execution conditions of the conditional handover and the conditional change of the PSCell are that the measurement value is greater than the third threshold. Thus, the terminal can execute the conditional handover and the conditional change of the PSCell if it is determined that the measurement value is greater than the third threshold.

[0124] Optionally, the terminal may also perform a conditional handover and a conditional addition of a PSCell if it is determined that the condition for performing the conditional handover and the conditional addition of a PSCell is satisfied.

[0125] That is, the terminal may evaluate the conditions for performing the conditional handover and the conditional addition of the PSCell to determine whether the terminal satisfies the conditions for performing the conditional handover and the conditional addition of the PSCell, and if the conditions for performing the conditional handover and the conditional addition of the PSCell are satisfied, the conditional handover and the conditional addition of the PSCell may be performed. The condition for performing the conditional handover and the condition for performing the conditional addition of the PSCell are the same.

[0126] Optionally, the conditions for performing the conditional handover and the conditional addition of the PSCell are the same execution condition. For example, the condition for performing the conditional handover and the conditional addition of the PSCell is that the measurement value is greater than the fourth threshold. Thus, the terminal can perform the conditional handover and the conditional addition of the PSCell if it is determined that the measurement value is greater than the fourth threshold.

[0127] It should be noted that the third threshold value and the fourth threshold value are given merely for illustration, and the disclosure of the present invention does not limit the values of the third threshold value and the fourth threshold value.

[0128] According to the disclosure of the present invention, after receiving information configured for conditional mobility and transmitted by a network device, the terminal can perform a conditional handover and a conditional change of PSCell (or a conditional addition of PSCell) if the condition for performing the conditional handover and the conditional change of PSCell (or a conditional addition of PSCell) is satisfied. In this way, according to the satisfaction of the condition for performing the conditional mobility, the corresponding conditional mobility is selectively performed, thereby improving the reliability, accuracy and robustness of mobility management.

[0129] Fig. 7 shows a flow chart of a method for managing terminal mobility according to an embodiment of the present invention. As shown in Fig. 7, the method, not limited to the steps shown, may include the following steps.

[0130] Step 701: receiving information configured for conditional mobility and transmitted by a network device, wherein the information configured for conditional mobility comprises one of the following: a conditional handover configuration and/or a conditional PSCell change configuration; a conditional handover configuration and/or a conditional PSCell addition configuration.

[0131] According to the disclosure of the present invention, the process performed in step 701 can be understood by referring to the detailed description of any embodiment, and this information is not provided again hereinafter.

[0132] Step 702: determining whether the condition for performing the conditional handover is satisfied.

[0133] According to the disclosure of the present invention, a terminal may evaluate a condition for performing a conditional handover to determine whether the condition for performing a conditional handover is satisfied.

[0134] Step 703: After determining that the condition for performing the conditional handover is satisfied, it is determined whether the condition for performing the conditional addition of the PSCell or the conditional change of the PSCell is satisfied.

[0135] According to the disclosure of the present invention, after the condition for performing a conditional handover is satisfied, the terminal may evaluate the condition for performing a conditional change of the PSCell or a conditional addition of the PSCell to determine whether the condition for performing a conditional change of the PSCell or a conditional addition of the PSCell is satisfied.

[0136] Step 704: performing conditional mobility according to satisfying the conditional mobility performance condition.

[0137] According to the disclosure of the present invention, the process performed in step 704 can be understood by reference to the detailed description of any embodiment, and this information is not repeated here.

[0138] According to the disclosure of the present invention, after receiving information configured for conditional mobility and transmitted by a network device, the terminal can determine whether a condition for performing conditional handover is satisfied, and then, after determining that the condition for performing conditional handover is satisfied, the terminal can determine whether a condition for performing conditional addition of PSCell or conditional change of PSCell is satisfied, and then perform conditional mobility based on the satisfaction of the condition for performing conditional mobility. In this way, according to the satisfaction of the condition for performing conditional mobility, the corresponding conditional mobility is selectively performed, thereby improving the reliability, accuracy and robustness of mobility management.

[0139] Fig. 8 shows a flow chart of a method for managing terminal mobility according to an embodiment of the present invention. As shown in Fig. 8, the method, not limited to the steps shown, may include the following steps.

[0140] Step 801: receiving information configured for conditional mobility and transmitted by a network device, wherein the information configured for conditional mobility comprises one of the following: a conditional handover configuration and/or a conditional PSCell change configuration; a conditional handover configuration and/or a conditional PSCell addition configuration.

[0141] According to the disclosure of the present invention, the process performed in step 801 can be understood by referring to the detailed description of any embodiment, and this information is not provided again hereinafter.

[0142] Step 802: determining whether the condition for performing conditional mobility is satisfied.

[0143] According to the disclosure of the present invention, a terminal may evaluate a conditional mobility execution condition to determine whether the terminal satisfies the conditional mobility execution condition.

[0144] Optionally, the terminal may evaluate the conditions for performing the conditional handover and the conditional addition of the PSCell to determine whether the terminal satisfies the conditions for performing the conditional handover and the conditional addition of the PSCell.

[0145] Optionally, the conditional handover execution condition and the conditional PSCell change execution condition are the same execution condition.

[0146] Optionally, the terminal may evaluate the conditions for performing the conditional handover and the conditional PSCell change to determine whether the terminal satisfies the conditions for performing the conditional handover and the conditional PSCell change.

[0147] Optionally, the conditional handover execution condition and the conditional PSCell addition execution condition are the same execution condition.

[0148] Optionally, the terminal may evaluate a conditional handover execution condition and a conditional addition execution condition of the PSCell to determine whether the terminal satisfies the conditional handover execution condition and the conditional addition execution condition of the PSCell.

[0149] Optionally, the terminal may evaluate the conditional handover execution condition and the conditional PSCell change execution condition to determine whether the terminal satisfies the conditional handover execution condition and the conditional PSCell change execution condition.

[0150] Step 803: performing conditional mobility according to satisfying the conditional mobility performance condition.

[0151] According to the disclosure of the present invention, after receiving information configured for conditional mobility and transmitted by a network device, the terminal can determine whether the conditions for performing conditional handover and conditional addition of PSCell are satisfied, and then perform conditional mobility based on the satisfaction of the condition for performing conditional mobility. In this way, according to the satisfaction of the condition for performing conditional mobility, the corresponding conditional mobility is selectively performed, thereby improving the reliability, accuracy, and robustness of mobility management.

[0152] Fig. 9 shows a flow chart of a method for managing terminal mobility according to an embodiment of the present invention. As shown in Fig. 9, the method, not limited to the steps shown, may include the following steps.

[0153] Step 901: receiving information configured for conditional mobility and transmitted by a network device, wherein the information configured for conditional mobility comprises one of the following: a conditional handover configuration and/or a conditional PSCell change configuration; a conditional handover configuration and/or a conditional PSCell addition configuration.

[0154] Step 902: performing conditional mobility according to satisfying the conditional mobility performance condition.

[0155] According to the disclosure of the present invention, the process performed in steps 901 and 902 can be understood by referring to the detailed description of any embodiment, and this information is not repeated hereinafter.

[0156] Step 903: transmitting indication information to the network device, wherein the indication information is configured to indicate one of the following results: a result of performing a conditional handover and/or a conditional addition of a PSCell; a result of performing a conditional handover and/or a conditional change of a PSCell.

[0157] In addition, the execution result may also include the type of reconfiguration performed by the terminal, for example, MCG reconfiguration and/or SCG reconfiguration. In addition, MCG reconfiguration may include conditional handover, etc., and SCG reconfiguration may include conditional addition of PSCell/conditional change of PSCell, etc.

[0158] According to the disclosure of the present invention, after the terminal performs the conditional handover and the conditional change of the PSCell (or the conditional addition of the PSCell), the result of performing the conditional handover and the conditional change of the PSCell (or the conditional addition of the PSCell) may be included in the RRC reconfiguration complete message or in the auxiliary information of the terminal so that, after receiving the RRC reconfiguration complete message or the auxiliary information of the terminal, the network device can determine that the terminal performs the conditional handover and the conditional change of the PSCell (or the conditional addition of the PSCell).

[0159] The RRC Reconfiguration Complete message may contain response information corresponding to the MCG mobility performance to indicate that the UE is performing a conditional handover.

[0160] Alternatively, the RRC reconfiguration complete message may contain response information corresponding to the SCG mobility performance to indicate that the UE is performing a conditional PSCell addition or a conditional PSCell change.

[0161] Alternatively, the RRC reconfiguration complete message may contain response information corresponding to performing MCG mobility and response information corresponding to performing SCG mobility to indicate that the UE performs a conditional handover and a conditional addition of a PSCell or a conditional change of a PSCell. The response information corresponding to performing MCG mobility may be the same as or different from the response information corresponding to performing SCG mobility, which is not limited by the disclosure of the present invention.

[0162] The RRC reconfiguration complete message may contain response information corresponding to the execution of SCG mobility, wherein the message may be forwarded by the master node to the secondary node and may contain the RRC reconfiguration complete message transmitted to the secondary node.

[0163] Alternatively, after performing the conditional handover, the terminal may include the result of performing the conditional handover in the RRC reconfiguration complete message or in the terminal auxiliary information so that, after receiving the RRC reconfiguration complete message or the terminal auxiliary information, the network device can determine that the terminal is performing the conditional handover.

[0164] The RRC Reconfiguration Complete message may contain response information corresponding to the MCG mobility performance to indicate that the UE is performing a conditional handover.

[0165] Optionally, the RRC Reconfiguration Complete message may not contain response information corresponding to the SCG mobility performance to indicate that the UE does not perform the conditional addition of PSCell or the conditional change of PSCell.

[0166] According to the disclosure of the present invention, after receiving information configured for conditional mobility and transmitted by a network device, the terminal can perform conditional mobility based on satisfying the conditional mobility execution condition, and then the terminal can transmit indication information to the network device to notify the network device of the execution of the corresponding conditional mobility by the terminal. In this way, according to satisfying the conditional mobility execution condition, the corresponding conditional mobility is selectively performed, thereby improving the reliability, accuracy and stability of mobility management.

[0167] Fig. 10 shows a flow chart of a method for managing terminal mobility according to an embodiment of the present invention. As shown in Fig. 10, the method, not limited to the steps shown, may include the following steps.

[0168] Step 1001: transmitting information configured for conditional mobility to the terminal, wherein the information configured for conditional mobility comprises one of the following: a conditional handover configuration and/or a conditional PSCell change configuration; a conditional handover configuration and/or a conditional PSCell addition configuration.

[0169] The information configured for conditional mobility may comprise information about conditional reconfiguration.

[0170] Optionally, the information configured for the conditional mobility may comprise at least one of the following: a condition for performing the conditional mobility, configuration information of the target cell, an association relationship between the conditional handover and the conditional addition of the PSCell, an association relationship between the conditional handover and the conditional change of the PSCell.

[0171] Optionally, the conditional handover configuration may be associated with the conditional change configuration of the PSCell, or the conditional handover configuration may be associated with the conditional addition configuration of the PSCell. That is, the network device may jointly configure the conditional handover and the conditional change of the PSCell and transmit the combined configuration of the conditional handover and the conditional change of the PSCell to the terminal; or the network device may jointly configure the conditional handover and the conditional addition of the PSCell and transmit the combined configuration of the conditional handover and the conditional addition of the PSCell to the terminal. The combined configuration indicates that the conditional handover configuration is associated with the conditional change configuration of the PSCell, or that the conditional handover configuration is associated with the conditional addition configuration of the PSCell, which is implicitly or explicitly indicated by the network device through the transmitted information.

[0172] For example, a conditional handover configuration and a conditional PSCell change (or conditional PSCell addition) configuration may be included in the same configuration message indicating that the conditional handover configuration is associated with the conditional PSCell change (or conditional PSCell addition) configuration.

[0173] Alternatively, the conditional handover configuration and the conditional PSCell change configuration may be respectively associated with the same configuration identifier indicating that the conditional handover configuration is associated with the conditional PSCell change configuration; and, accordingly, the conditional handover configuration and the conditional PSCell addition configuration are respectively associated with the same configuration identifier indicating that the conditional handover configuration is associated with the conditional PSCell addition configuration. The configuration identifier may be any information that can be used to uniquely identify a combined configuration, such as a conditional reconfiguration number, which is not limited to the disclosure of the present invention.

[0174] Alternatively, the association of the conditional handover configuration and the conditional PSCell change (or conditional PSCell addition) configuration may be indicated by indicating the associated conditional PSCell change configuration or the associated conditional PSCell addition configuration in the conditional handover configuration.

[0175] Alternatively, the association of the conditional handover configuration and the conditional change PSCell configuration or the association of the conditional handover configuration and the conditional addition PSCell configuration may be indicated by indicating the associated conditional handover configuration in the conditional change PSCell configuration or the conditional addition PSCell configuration.

[0176] Alternatively, the association of the conditional handover configuration and the conditional change configuration of the PSCell or the association of the conditional handover configuration and the conditional addition configuration of the PSCell may be indicated by association information.

[0177] For example, an association of a conditional handover configuration and a conditional change configuration of a PSCell, or an association of a conditional handover configuration and a conditional addition configuration of a PSCell, may be indicated using information elements (IEs); or an association of a conditional handover configuration and a conditional change configuration of a PSCell, or an association of a conditional handover configuration and a conditional addition configuration of a PSCell, may be indicated using an association field.

[0178] According to the disclosure of the present invention, a network device may transmit information configured for conditional mobility to a terminal, and then the terminal may perform conditional mobility based on satisfying the condition for performing conditional mobility. In this way, according to satisfying the condition for performing conditional mobility, the corresponding conditional mobility is selectively performed, thereby improving the reliability, accuracy, and robustness of mobility management.

[0179] Fig. 11 shows a flow chart of a method for managing terminal mobility according to an embodiment of the present invention. As shown in Fig. 11, the method, not limited to the steps shown, may include the following steps.

[0180] Step 1101: transmitting information configured for conditional mobility to the terminal, wherein the information configured for conditional mobility comprises one of the following: a conditional handover configuration and/or a conditional PSCell change configuration; a conditional handover configuration and/or a conditional PSCell addition configuration.

[0181] According to the disclosure of the present invention, the process performed in step 1101 can be understood by referring to the detailed description of any embodiment, and this information is not provided again hereinafter.

[0182] Step 1102: receiving indication information transmitted by the terminal, wherein the indication information is configured to indicate one of the following results: a result of performing a conditional handover and/or a conditional change of a PSCell; a result of performing a conditional handover and/or a conditional addition of a PSCell.

[0183] In addition, the execution result may also include the type of reconfiguration performed by the terminal, for example, MCG reconfiguration and/or SCG reconfiguration. In addition, MCG reconfiguration may include conditional handover, etc., and SCG reconfiguration may include conditional addition of PSCell/conditional change of PSCell, etc.

[0184] According to the disclosure of the present invention, after the terminal performs a conditional handover and a conditional change of the PSCell (or a conditional addition of the PSCell), the result of performing the conditional handover and/or the conditional change of the PSCell (or the conditional addition of the PSCell) may be included in the RRC reconfiguration complete message or in the auxiliary information of the terminal so that, after receiving the RRC reconfiguration complete message or the auxiliary information of the terminal, the network device can determine that the terminal performs a conditional handover and a conditional change of the PSCell (or a conditional addition of the PSCell).

[0185] The RRC Reconfiguration Complete message may contain response information corresponding to the MCG mobility performance to indicate that the UE is performing a conditional handover.

[0186] Alternatively, the RRC reconfiguration complete message may contain response information corresponding to the SCG mobility performance to indicate that the UE is performing a conditional PSCell addition or a conditional PSCell change.

[0187] Alternatively, the RRC reconfiguration complete message may contain response information corresponding to performing MCG mobility and response information corresponding to performing SCG mobility to indicate that the UE performs a conditional handover and a conditional addition of a PSCell or a conditional change of a PSCell. The response information corresponding to performing MCG mobility may be the same as or different from the response information corresponding to performing SCG mobility, which is not limited by the disclosure of the present invention.

[0188] The RRC reconfiguration complete message may contain response information corresponding to the execution of SCG mobility, wherein the message may be forwarded by the master node to the secondary node and may contain the RRC reconfiguration complete message transmitted to the secondary node.

[0189] Alternatively, after performing the conditional handover, the terminal may include the result of performing the conditional handover in the RRC reconfiguration complete message or in the terminal auxiliary information so that, after receiving the RRC reconfiguration complete message or the terminal auxiliary information, the network device can determine that the terminal is performing the conditional handover.

[0190] The RRC reconfiguration complete message may contain response information corresponding to the MCG mobility performance to indicate that the UE is performing a conditional handover.

[0191] Optionally, the RRC Reconfiguration Complete message may not contain response information corresponding to the SCG mobility performance to indicate that the UE does not perform the conditional addition of PSCell or the conditional change of PSCell.

[0192] According to the disclosure of the present invention, after the network device transmits information configured for conditional mobility to the terminal, the terminal can perform conditional mobility based on the satisfaction of the conditional mobility execution condition and transmit indication information to the network device to notify the network device of the execution of the corresponding conditional mobility by the terminal. In this way, according to the satisfaction of the conditional mobility execution condition, the corresponding conditional mobility is selectively performed, thereby improving the reliability, accuracy and stability of mobility management.

[0193] Fig. 12 shows a block diagram of a communication device 1200 according to an embodiment of the present invention. The communication device 1200 shown in Fig. 12 may comprise a processing module 1201 and a transmitting/receiving module 1202, the transmitting/receiving module 1202 may comprise a transmitting module and/or a receiving module, the transmitting module is configured to implement a transmitting function, and the receiving module is configured to implement a receiving function, and the transmitting/receiving module 1202 may implement the transmitting function and/or the receiving function.

[0194] It should be appreciated that the communication device 1200 may be a terminal, a device integrated into a terminal, or a device that can be matched with and used in conjunction with a terminal.

[0195] For terminal side communication device 1200:

[0196] the transmitting/receiving module 1202 is configured to receive information configured for conditional mobility and transmitted by a network device, wherein the information configured for conditional mobility comprises one of the following: a conditional handover configuration and/or a conditional PSCell change configuration; a conditional handover configuration and/or a conditional PSCell add configuration; and

[0197] the processing module 1201 is configured to perform conditional mobility according to satisfying the conditional mobility performance condition.

[0198] Optionally, the processing module 1201 is also configured to:

[0199] starting the timer if the condition for performing a conditional handover is satisfied.

[0200] Optionally, the processing module 1201 is configured to:

[0201] performing a conditional handover and a conditional change of PSCell if the timer has not expired and the condition for performing a conditional change of PSCell is satisfied;

[0202] performing a conditional handover and a conditional addition of a PSCell if the timer has not expired and the condition for performing a conditional addition of a PSCell is satisfied;

[0203] performing a conditional handover and a conditional change of the PSCell if the timer has not expired and the condition for performing a conditional handover and a conditional change of the PSCell is satisfied; or

[0204] performing a conditional handover and a conditional addition of a PSCell if the timer has not expired and the condition for performing a conditional handover and a conditional addition of a PSCell is satisfied.

[0205] Optionally, the processing module is also configured to:

[0206] stopping the timer if the timer time has not expired and the condition for performing a conditional change of PSCell or the condition for performing a conditional addition of PSCell is satisfied.

[0207] Optionally, the processing module 1201 is also configured to:

[0208] performing a conditional handover upon expiration of a timer;

[0209] deleting the PSCell conditional change configuration or the PSCell conditional add configuration after the timer expires; or

[0210] performing a conditional handover after the timer expires and if the condition for performing a conditional handover is satisfied.

[0211] Optionally, the processing module 1201 is configured to:

[0212] performing a conditional handover and a conditional change of the PSCell if the condition for performing a conditional handover and the condition for performing a conditional change of the PSCell are satisfied;

[0213] performing a conditional handover and a conditional addition of a PSCell if the condition for performing a conditional handover and the condition for performing a conditional addition of a PSCell are satisfied;

[0214] performing a conditional handover and a conditional change of PSCell if the condition for performing a conditional handover and a conditional change of PSCell is satisfied; or

[0215] performing a conditional handover and a conditional addition of a PSCell if the condition for performing a conditional handover and a conditional addition of a PSCell is satisfied.

[0216] Optionally, the conditional handover configuration is associated with a conditional PSCell change or conditional PSCell add configuration.

[0217] Optionally, the processing module 1201 is also configured to:

[0218] determining whether the condition for performing a conditional handover is satisfied; and

[0219] determining whether the condition for performing a conditional addition of a PSCell or the condition for performing a conditional change of a PSCell is satisfied if it is determined that the condition for performing a conditional handover is satisfied.

[0220] Optionally, the processing module 1201 is also configured to:

[0221] determining whether the condition for performing conditional handover and conditional addition of PSCell is satisfied;

[0222] determining whether the condition for performing a conditional handover and a conditional change of PSCell is satisfied;

[0223] determining whether the condition for performing a conditional handover and the condition for performing a conditional addition of a PSCell are satisfied; or

[0224] determining whether the condition for performing a conditional handover and the condition for performing a conditional change of PSCell are satisfied.

[0225] Optionally, the processing module 1201 is also configured to:

[0226] restarting to determine whether the condition for performing the conditional handover and the conditional change of PSCell is satisfied after a predetermined timer has expired; or

[0227] restart to determine whether the condition for performing the conditional handover and the conditional addition of the PSCell is satisfied after a predetermined timer has expired.

[0228] Optionally, the transmit/receive module 1202 is also configured to:

[0229] transmitting indication information to the network device, wherein the indication information is configured to indicate one of the following results: a result of performing a conditional handover and/or a conditional addition of a PSCell; a result of performing a conditional handover and/or a conditional change of a PSCell.

[0230] Optionally, the indication information is one of the following:

[0231] RRC reconfiguration completion message;

[0232] terminal auxiliary information;

[0233] information transmitted via the RRC Reconfiguration Complete message; and

[0234] information transmitted via terminal auxiliary information.

[0235] Optionally, the transmit/receive module 1202 is configured to:

[0236] receiving a combined conditional handover and conditional PSCell change configuration transmitted by a network device; or

[0237] receiving a combined configuration of conditional handover and conditional addition of PSCell transmitted by the network device.

[0238] Optionally, the combined configuration implicitly or explicitly indicates that the conditional handover configuration is associated with the conditional PSCell change configuration, or that the conditional handover configuration is associated with the conditional PSCell add configuration.

[0239] Optionally, the combined configuration of conditional handover and conditional PSCell change or the combined configuration of conditional handover and conditional PSCell addition is formed in one of the following ways:

[0240] the conditional handover configuration and the conditional change PSCell configuration are included in the same configuration, or the conditional handover configuration and the conditional addition PSCell configuration are included in the same configuration;

[0241] the conditional handover configuration and the conditional PSCell change configuration are associated with the same configuration identifier, or the conditional handover configuration and the conditional PSCell add configuration are associated with the same configuration identifier;

[0242] the associated conditional change PSCell configuration or the associated conditional addition PSCell configuration are specified in the conditional handover configuration;

[0243] the associated conditional handover configuration is specified in the conditional change PSCell configuration or the conditional add PSCell configuration; or

[0244] an association of a conditional handover configuration and a conditional change configuration of a PSCell or an association of a conditional handover configuration and a conditional addition configuration of a PSCell is indicated by association information.

[0245] Optionally, the information configured for conditional mobility comprises information about conditional reconfiguration.

[0246] According to the disclosure of the present invention, after receiving information configured for conditional mobility and transmitted by a network device, the terminal can perform conditional mobility according to the satisfaction of the conditional mobility performance condition. Thus, according to the satisfaction of the conditional mobility performance condition, the corresponding conditional mobility is selectively performed, thereby improving the reliability, accuracy, and robustness of mobility management.

[0247] It should be appreciated that the communication device 1200 may be a network device, a device embedded in a network device, or a device that can be matched with a network device and used in conjunction with the network device.

[0248] For the communication device 1200 on the network device side:

[0249] the transmitting/receiving module 1202 is configured to transmit to the terminal information configured for conditional mobility, wherein the information configured for conditional mobility comprises one of the following: a conditional handover configuration and/or a conditional PSCell change configuration; a conditional handover configuration and/or a conditional PSCell addition configuration.

[0250] Optionally, the transmit/receive module 1202 is also configured to:

[0251] receiving indication information transmitted by the terminal, wherein the indication information is configured to indicate one of the following results: a result of performing a conditional handover and/or a conditional change of a PSCell; a result of performing a conditional handover and/or a conditional addition of a PSCell.

[0252] Optionally, the indication information is one of the following:

[0253] RRC reconfiguration completion message;

[0254] terminal auxiliary information;

[0255] information transmitted via the RRC Reconfiguration Complete message; and

[0256] information transmitted via terminal auxiliary information.

[0257] Optionally, the transmit/receive module 1202 is configured to:

[0258] transmitting to the terminal a combined configuration of a conditional handover and a conditional change of PSCell; or

[0259] transmitting to the terminal a combined configuration of conditional handover and conditional addition of PSCell.

[0260] Optionally, the combined configuration implicitly or explicitly indicates that the conditional handover configuration is associated with the conditional PSCell change configuration, or that the conditional handover configuration is associated with the conditional PSCell add configuration.

[0261] Optionally, the combined configuration of conditional handover and conditional PSCell change or the combined configuration of conditional handover and conditional PSCell addition is formed in one of the following ways:

[0262] the conditional handover configuration and the conditional change PSCell configuration are included in the same configuration, or the conditional handover configuration and the conditional add PSCell configuration are included in the same configuration;

[0263] the conditional handover configuration and the conditional PSCell change configuration are associated with the same configuration identifier, or the conditional handover configuration and the conditional PSCell add configuration are associated with the same configuration identifier;

[0264] the associated conditional change PSCell configuration or the associated conditional addition PSCell configuration is specified in the conditional handover configuration;

[0265] the associated conditional handover configuration is specified in the conditional change PSCell configuration or the conditional add PSCell configuration; or

[0266] an association of a conditional handover configuration and a conditional change configuration of a PSCell or an association of a conditional handover configuration and a conditional addition configuration of a PSCell is indicated by association information.

[0267] According to the disclosure of the present invention, a network device may transmit information configured for conditional mobility to a terminal, and then the terminal may perform conditional mobility based on satisfying the condition for performing conditional mobility. In this way, according to satisfying the condition for performing conditional mobility, the corresponding conditional mobility is selectively performed, thereby improving the reliability, accuracy, and robustness of mobility management.

[0268] Another communication device 1300 according to an embodiment of the present disclosure is also provided. The communication device 1300 may be a network device, a terminal, or a chip, a system of chips, a processor, etc., that provide the network device with the implementation of the above methods, or may be a chip, a system of chips, a processor, etc., that provide the terminal with the implementation of the above methods. The device may be configured to implement the methods given above within the framework of the embodiments of the methods; for details, refer to the descriptions of these embodiments.

[0269] The communication device 1300 may comprise one or more processors 1301, and the processor 1301 may be a general-purpose processor or a specialized processor. For example, it may be a baseband processor or a central processor. The baseband processor may be used to process a communication protocol and transmitted data, and the central processor may be used to control the communication device (e.g., a base station, a baseband chip, a terminal, a terminal chip, a DU or a CU), execute a computer program, and process data of the computer program.

[0270] Optionally, the communication device 1300 may also comprise one or more memories 1302, in which the communication device 1300 may store a computer program 1304, and the processor 1301 executes the computer program 1304 so that the communication device 1300 performs the methods described above according to the embodiments. Optionally, data may also be stored in the memory 1302. The communication device 1300 and the memory 1302 may be implemented separately or integrated with each other.

[0271] Optionally, the communication device 1300 may also include a transceiver 1305 and an antenna 1306. The transceiver 1305 may be called a transceiver unit, a transceiver machine, a transceiver circuit, and the like, configured to implement a reception function and a transmission function. The transceiver 1305 may include a receiver and a transmitter, the receiver may be called a receiving unit or a receiving circuit configured to implement a reception function; and the transmitter may be called a transmitting unit or a transmitting circuit configured to implement a transmission function.

[0272] Optionally, the communication device 1300 may also comprise one or more interface circuits 1307, and the interface circuit 1307 is configured to receive instruction codes and transmit them to the processor 1301, and the processor 1301 executes the instruction codes that initiate the communication device 1300 to perform the methods in accordance with the embodiments described above.

[0273] If the communication device 1300 is a terminal, the processor 1301 is configured to perform step 202 shown in Fig. 2, step 302 and step 303 shown in Fig. 3; step 402 and step 403 shown in Fig. 4; step 502 and step 503 shown in Fig. 5; step 602 shown in Fig. 6; step 702, step 703, and step 704 shown in Fig. 7; step 802 and step 803 shown in Fig. 8; step 902 and step 903 shown in Fig. 9; and the like.

[0274] If the communication device 1300 is a network device, the transceiver 1305 is configured to perform step 1001 shown in Fig. 10; step 1101 and step 1102 shown in Fig. 11, and the like.

[0275] According to an implementation, the processor 1301 may comprise a transceiver that performs a receiving function and a transmitting function. For example, the transceiver may be a transceiver circuit, an interface, or an interface circuit. The transceiver circuit, an interface, or an interface circuit configured to implement the receiving and transmitting functions may be implemented separately or integrated with each other. The transceiver circuit, an interface, or an interface circuit may be configured to implement reading/writing code/data, or the transceiver circuit, an interface, or an interface circuit may be configured to transmit or forward a signal.

[0276] According to the implementation, a computer program 1303 may be stored in the processor 1301, which is executed by the processor 1301 in order to initiate the communication device 1300 to perform the methods according to the embodiments described above. The computer program 1303 may be embedded in the processor 1301, in which case the processor 1301 may be implemented in hardware.

[0277] According to an implementation, the communication device 1300 may comprise a circuit, and the circuit may perform the transmitting or receiving or communication function in the previous embodiments of the method. The processor and transceiver described in the disclosure of the present invention may be implemented on an integrated circuit (IC; Integrated Circuit), an analog IC, a radio frequency integrated circuit (RFIC; Radio Frequency Integrated Circuit), a mixed signal IC, an application specific integrated circuit (ASIC; Application Specific Integrated Circuit), a printed circuit board (PCB; Printed Circuit Board), an electronic device, and the like. The processor and transceiver may also be manufactured using various IC manufacturing processes, such as Complementary Metal Oxide Semiconductor (CMOS), n-Metal Oxide Semiconductor (NMOS), Positive Channel Metal Oxide Semiconductor (PMOS), Bipolar Junction Transistor (BJT), Bipolar CMOS (BiCMOS), Silicon-Germanium (SiGe), Gallium Arsenide (GaAs), etc.

[0278] The communication device in the embodiments described above may be a network device or a terminal, however, the types of communication devices described in the disclosure of the present invention are not limited to only these devices, and the structure of the communication device may not be limited to that shown in Fig. 13. The communication device may be a stand-alone device or be part of a larger device. For example, the communication device may be:

[0279] (1) a stand-alone IC, microcircuit, microcircuit system, or subsystem;

[0280] (2) a set of one or more ICs, optionally the set of ICs may also contain a storage component for storing data and computer programs;

[0281] (3) an ASIC such as a modem;

[0282] (4) a module that can be built into other devices;

[0283] (5) a receiver, a terminal, an intelligent terminal, a cellular phone, a wireless device, a portable device, a mobile unit, a device in a vehicle, a network device, a cloud device, an artificial intelligence device, etc.; and

[0284] (6) other devices.

[0285] In the case where the communication device may be a microcircuit or a system of microcircuits, reference may be made to the block diagram shown in Fig. 14. The microcircuit shown in Fig. 14 comprises a processor 1401 and an interface 1403. There may be one or more processors 1401 and a plurality of interfaces 1403.

[0286] The microcircuit is configured to implement the terminal function according to embodiments of the present invention:

[0287] interface 1403 is configured to perform step 201 shown in Fig. 2; step 301 shown in Fig. 3; step 401 shown in Fig. 4; step 501 shown in Fig. 5; step 601 shown in Fig. 6; step 701 shown in Fig. 7; step 801 shown in Fig. 8; step 901 shown in Fig. 9; and the like.

[0288] The microcircuit is configured to implement the function of a network device according to embodiments of the present invention:

[0289] interface 1403 is configured to perform step 1001 shown in Fig. 10; step 1101 and step 1102 shown in Fig. 11; and the like.

[0290] Optionally, the microcircuit also comprises a memory 1402, and the memory 1402 is configured to store the necessary computer programs and data.

[0291] Those skilled in the art may also recognize that the various logical blocks and steps shown in the embodiments of the present invention may be implemented using electronic hardware, computer software, or a combination of both. Whether the functions are implemented using hardware or software depends on the specific application and the requirements for the overall system design. A person skilled in the art may use various methods to implement the functions in each specific application, but such implementation should not be considered as going beyond the scope of protection of the embodiments of the present invention.

[0292] The present disclosure also provides a computer-readable medium that stores instructions that, when executed by a computer, implement the functions described above in accordance with any of the embodiments of the method.

[0293] As part of the disclosure of the present invention, a computer program product is also provided that, when executed by a computer, implements functions in accordance with any of the above-described embodiments of the method.

[0294] All or some of the above embodiments may be implemented using software, hardware, firmware, or a combination of these means. When implemented using software, all or some of the above embodiments may be implemented as a computer program product. The computer program product comprises one or more computer programs. When loading and executing the computer program on the computer, procedures or functions according to embodiments of the present invention are partially or completely generated. The computer may be a general-purpose computer, a dedicated computer, a computer network, or another programmable device. A computer program may be stored on a machine-readable medium or transmitted from one machine-readable medium to another machine-readable medium, for example, a computer program may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via a wired connection (e.g., using coaxial cable, fiber optics, digital subscriber line (DSL)) or a wireless connection (e.g., using infrared, wireless, or microwave transmission, etc.). A machine-readable medium may be any applicable medium that can be accessed by a computer, or a data storage device, such as a server or data center, integrating one or more applicable media. The applicable storage medium may be a magnetic disk (e.g., a floppy disk, a hard disk, or a magnetic tape), an optical disk (e.g., a high-density digital video disc (DVD)) or a semiconductor disk such as a solid-state disk (SSD), etc.

[0295] One skilled in the art can understand that various numerals, such as "first" and "second", used in the disclosure of the present invention are provided only for ease of description and are not used to limit the scope of embodiments of the present invention, nor do they indicate order.

[0296] The term “at least one” used in the disclosure of the present invention may also be described as “one or more”, and the term “plurality” may denote one, two, three, four or more objects, which is not limited to the disclosure of the present invention. According to the embodiments of the present invention, with regard to technical features, the terms “first”, “second”, “third”, “A”, “B”, “C” and “D”, etc. are used to distinguish technical features, and the technical features described using the terms “first”, “second”, “third”, “A”, “B”, “C” and “D” do not indicate a specific order or sequence sizes.

[0297] The correspondences shown in the tables given in the disclosure of the present invention may be configured or predetermined. The values of the information elements in each table are presented only as an example, and these elements may be assigned other values that are not limited by the disclosure of the present invention. If the correspondence between the configuration information and the parameters does not need to be configured, all corresponding relationships shown in the tables must be configured. For example, the correspondences shown in some rows of the tables given in the disclosure of the present invention may not be established. In another example, the above tables can be configured accordingly, for example, by splitting, combining, etc. The names of the parameters given in the above tables may also represent other names that can be recognized using the communication device, and the value or method of representing the parameters may also be recognized by the communication device in the form of other values or representations of the parameters. When implementing the above tables, other data structures can also be used, such as array, queue, container, stack, linear table, pointer, linked list, tree, graph, structure, class, dynamic memory, hash table, etc.

[0298] The term “predetermined” in the disclosure of the present invention may be considered as determining, determining in advance, storing, storing in advance, aligning in advance, configuring in advance, crystallizing, or burning in advance.

[299] It may be apparent to one skilled in the art that, in conjunction with the examples described in the embodiments of the present invention, the blocks and steps of the algorithms may be implemented in the form of electronic hardware or a combination of computer software and electronic hardware. Whether such functions are implemented using hardware or software depends on the specific application and the design constraints of the technical solution. One skilled in the art may use different methods to implement the described functions for each specific application, but such implementations should not be considered as going beyond the scope of the disclosure of the present invention.

[0300] It may be obvious to one skilled in the art that, for the sake of convenience and conciseness of description, in order to obtain more detailed information about the working processes of the system, device and unit described above, one can refer to the corresponding process in previous embodiments of the method, which are not described again.

[0301] Only specific embodiments of the disclosure of the present invention are given above, however, the scope of protection of the disclosure is not limited to these embodiments, and persons skilled in the art can easily make any changes or replacements within the disclosed technical field, which should be covered by the scope of protection of the disclosure of the present invention. Therefore, the scope of the present invention should be determined by the scope of the claims.

Claims (64)

1. A method for managing the mobility of a terminal, performed by the terminal and including: receiving information configured for conditional mobility and transmitted by a network device, wherein the information configured for conditional mobility comprises one of the following: a conditional handover configuration and a conditional change of primary secondary cell (PSCell) configuration; a conditional handover configuration and a conditional add PSCell configuration; and execution of conditional mobility in accordance with the satisfaction of the condition for execution of conditional mobility; wherein the execution of conditional mobility in accordance with the satisfaction of the condition for the execution of conditional mobility includes one of the following: performing a conditional handover and a conditional change of PSCell if the condition for performing a conditional handover and the condition for performing a conditional change of PSCell are satisfied; performing conditional handover and conditional addition of PSCell if the condition for performing conditional handover and the condition for performing conditional addition of PSCell are satisfied; performing a conditional handover and a conditional PSCell change if the condition for performing a conditional handover and a conditional PSCell change is satisfied; or performing conditional handover and conditional addition of PSCell if the condition for performing conditional handover and conditional addition of PSCell is satisfied. 2. The method according to paragraph 1, characterized in that the execution of a conditional handover and a conditional change of PSCell, if the condition for the execution of a conditional handover and the condition for the execution of a conditional change of PSCell are satisfied, comprises: determining whether the conditional handover execution condition and the conditional PSCell change execution condition are satisfied by evaluating the conditional handover execution condition and the conditional PSCell change execution condition, respectively; and executing the conditional handover and the conditional PSCell change if the conditional handover execution condition and the conditional PSCell change execution condition are satisfied; or performing conditional handover and conditional addition of PSCell if the condition for performing conditional handover and the condition for performing conditional addition of PSCell are satisfied, contains: determining whether a conditional handover execution condition and a conditional addition execution condition of a PSCell are satisfied by evaluating the conditional handover execution condition and the conditional addition execution condition of a PSCell, respectively; and executing the conditional handover and the conditional addition of a PSCell if the conditional handover execution condition and the conditional addition execution condition of a PSCell are satisfied. 3. The method according to claim 1, characterized in that after receiving information configured for conditional mobility and transmitted by the network device, the method also includes: determining whether the condition for performing conditional handover and conditional addition of PSCell is satisfied; determining whether the condition for performing conditional handover and conditional change of PSCell is satisfied; determining whether the condition for performing a conditional handover and the condition for performing a conditional addition of a PSCell are satisfied; or determining whether the condition for performing a conditional handover and the condition for performing a conditional change of PSCell are satisfied. 4. The method according to any one of paragraphs 1-3, also including: transmitting indication information to the network device, wherein the indication information is configured to indicate the result of performing the conditional handover and the conditional addition of the PSCell, or the result of performing the conditional handover and the conditional modification of the PSCell. 5. The method according to claim 4, characterized in that the indication information contains at least one of the following: Radio Resource Control (RRC) Reconfiguration Completion message; auxiliary terminal information; information conveyed via the RRC Reconfiguration Complete message; and information transmitted via the terminal's auxiliary information. 6. The method according to any one of paragraphs 1-5, characterized in that the conditional handover configuration is associated with the conditional change PSCell configuration or the conditional add PSCell configuration, and receiving information configured for conditional mobility and transmitted by a network device includes: receiving a combined conditional handover and conditional PSCell change configuration transmitted by a network device; or receiving a combined conditional handover and conditional PSCell addition configuration transmitted by a network device. 7. The method according to claim 6, characterized in that the combined configuration implicitly or explicitly indicates that the conditional handover configuration is associated with the conditional change PSCell configuration, or that the conditional handover configuration is associated with the conditional add PSCell configuration. 8. The method according to paragraph 6, characterized in that the combined configuration of conditional handover and conditional change of PSCell or the combined configuration of conditional handover and conditional addition of PSCell is formed by one of the following methods: the conditional handover configuration and the conditional PSCell change configuration are included in the same configuration, or the conditional handover configuration and the conditional PSCell add configuration are included in the same configuration; the conditional handover configuration and the conditional PSCell change configuration are associated with the same configuration identifier, or the conditional handover configuration and the conditional PSCell add configuration are associated with the same configuration identifier; the associated conditional change PSCell configuration or the associated conditional add PSCell configuration is specified in the conditional handover configuration; the associated conditional handover configuration is specified in the PSCell conditional change configuration or the PSCell conditional add configuration; and The association of the conditional handover configuration and the conditional change configuration of the PSCell or the association of the conditional handover configuration and the conditional add configuration of the PSCell is specified by the association information. 9. The method according to any one of paragraphs 1-8, characterized in that the information configured for conditional mobility contains information about conditional reconfiguration. 10. A method for managing the mobility of a terminal, performed by a network device and including: transmitting to the terminal information configured for conditional mobility, wherein the information configured for conditional mobility comprises one of the following: a conditional handover configuration and a conditional change configuration of a primary secondary cell (PSCell); or a conditional handover configuration and a conditional addition configuration of a PSCell, to cause the terminal to perform, according to the satisfaction of a condition for performing conditional mobility, a conditional mobility comprising one of the following: performing a conditional handover and a conditional change of PSCell if the condition for performing a conditional handover and the condition for performing a conditional change of PSCell are satisfied; performing conditional handover and conditional addition of PSCell if the condition for performing conditional handover and the condition for performing conditional addition of PSCell are satisfied; performing a conditional handover and a conditional PSCell change if the condition for performing a conditional handover and a conditional PSCell change is satisfied; or performing conditional handover and conditional addition of PSCell if the condition for performing conditional handover and conditional addition of PSCell is satisfied. 11. The method according to paragraph 10, also including: receiving indication information transmitted by the terminal, wherein the indication information is configured to indicate the result of performing the conditional handover and the conditional change of the PSCell, or the result of performing the conditional handover and the conditional addition of the PSCell. 12. The method according to claim 11, characterized in that the indication information contains at least one of the following: Radio Resource Control (RRC) reconfiguration completion message; auxiliary terminal information; information conveyed via the RRC Reconfiguration Complete message; and information transmitted via the terminal's auxiliary information. 13. The method according to any one of paragraphs 10-12, characterized in that the conditional handover configuration is associated with the conditional change PSCell configuration or the conditional add PSCell configuration, and transmission of information configured for conditional mobility to the terminal includes: transmitting to the terminal a combined configuration of conditional handover and conditional PSCell change; or transmission to the terminal of a combined configuration of conditional handover and conditional addition of PSCell. 14. The method according to claim 13, characterized in that the combined configuration implicitly or explicitly indicates that the conditional handover configuration is associated with the conditional change PSCell configuration, or that the conditional handover configuration is associated with the conditional add PSCell configuration. 15. The method according to paragraph 13, characterized in that the combined configuration of conditional handover and conditional change of PSCell or the combined configuration of conditional handover and conditional addition of PSCell is formed by one of the following methods: the conditional handover configuration and the conditional PSCell change configuration are included in the same configuration, or the conditional handover configuration and the conditional PSCell add configuration are included in the same configuration; the conditional handover configuration and the conditional PSCell change configuration are associated with the same configuration identifier, or the conditional handover configuration and the conditional PSCell add configuration are associated with the same configuration identifier; the associated conditional change PSCell configuration or the associated conditional add PSCell configuration is specified in the conditional handover configuration; the associated conditional handover configuration is specified in the PSCell conditional change configuration or the PSCell conditional add configuration; and The association of the conditional handover configuration and the conditional change configuration of the PSCell or the association of the conditional handover configuration and the conditional add configuration of the PSCell is specified by the association information. 16. A communication terminal comprising a processor; and a memory storing a computer program executed by the processor; wherein the processor is configured to perform the method according to any one of paragraphs 1-9. 17. A network communication device comprising a processor; and a memory storing a computer program executed by the processor; wherein the processor is configured to perform the method according to any one of paragraphs 10-15. 18. A machine-readable medium for storing instructions that, when executed by a processor, initiate the processor to perform the method according to any one of paragraphs 1-9. 19. A machine-readable medium for storing instructions that, when executed by a processor, initiate the processor to perform the method according to any of paragraphs 10-15.