Communication methods, and terminals, network devices, system, storage medium and program product

Abstract

The present disclosure relates to communication methods, and terminals, network devices, a system, a storage medium and a program product. A communication method comprises: a terminal executing mobility management; and the terminal adjusting mobility management mechanisms, wherein the mobility management mechanisms comprise a first mobility management mechanism and a second mobility management mechanism, the first mobility management mechanism supports first-type mobility management, and the second mobility management mechanism supports first-type and second-type mobility management. By means of the present disclosure, the effectiveness of a mobility management mechanism is ensured, thereby improving the user experience.

Description

Communication methods, terminals, network devices, systems, storage media and software products Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to communication methods, terminals, network devices, systems, storage media, and program products. Background Technology

[0002] In a communication system, a base station can send a cell switch command signaling to a terminal through a Medium Access Control Element (MAC CE) to realize the process of changing the terminal's serving cell. This process can be called a Layer 1 or Layer 2 Triggered Mobility (LTM) process.

[0003] Summary of the Invention

[0004] This disclosure provides communication methods, terminals, network devices, systems, storage media, and program products.

[0005] According to a first aspect of the present disclosure, a communication method is proposed, the method comprising: a terminal performing mobility management; the terminal adjusting a mobility management mechanism; wherein the mobility management mechanism includes a first mobility management mechanism and a second mobility management mechanism, the first mobility management mechanism supporting a first type of mobility management, and the second mobility management mechanism supporting both the first type and the second type of mobility management.

[0006] According to a second aspect of the present disclosure, a communication method is proposed, the method comprising: a first network device adjusting a mobility management mechanism; wherein the mobility management mechanism includes a first mobility management mechanism and a second mobility management mechanism, the first mobility management mechanism supporting a first type of mobility management, and the second mobility management mechanism supporting both the first type and the second type of mobility management.

[0007] According to a third aspect of the present disclosure, a communication method is provided, the method comprising: a terminal performing mobility management; the terminal adjusting a mobility management mechanism; a first network device adjusting the mobility management mechanism; wherein the mobility management mechanism includes a first mobility management mechanism and a second mobility management mechanism, the first mobility management mechanism supporting a first type of mobility management, and the second mobility management mechanism supporting both the first type and the second type of mobility management.

[0008] According to a fourth aspect of the present disclosure, a terminal is provided, comprising: a processing module for performing mobility management; adjusting a mobility management mechanism; wherein the mobility management mechanism includes a first mobility management mechanism and a second mobility management mechanism, the first mobility management mechanism supporting a first type of mobility management, and the second mobility management mechanism supporting both the first and second types of mobility management.

[0009] According to a fifth aspect of the present disclosure, a network device is provided, comprising: a processing module for adjusting a mobility management mechanism; wherein the mobility management mechanism includes a first mobility management mechanism and a second mobility management mechanism, the first mobility management mechanism supporting a first type of mobility management, and the second mobility management mechanism supporting both the first type and the second type of mobility management.

[0010] According to a sixth aspect of the present disclosure, a terminal is provided, comprising: one or more processors; wherein the terminal is configured to execute the first aspect and any one of the communication methods in the first aspect.

[0011] According to a seventh aspect of the present disclosure, a first network device is provided, comprising: one or more processors; wherein the network device is configured to perform the second aspect and any one of the communication methods in the second aspect.

[0012] According to an eighth aspect of the present disclosure, a communication system is provided, including a terminal and a first network device, wherein the terminal is configured to implement the first aspect and any one of the communication methods in the first aspect, and the first network device is configured to implement the second aspect and any one of the communication methods in the second aspect.

[0013] According to a ninth aspect of the present disclosure, a storage medium is provided that stores instructions, which, when executed on a communication device, cause the communication device to perform a communication method as described in the first aspect and any one of the first aspects or the second aspect and any one of the second aspects.

[0014] According to a tenth aspect of the present disclosure, a program product is provided, comprising: a computer program, which, when executed by a communication device, causes the communication device to perform a communication method as described in the first aspect and any one of the first aspects or the second aspect and the second aspect.

[0015] This disclosure implements mobility management through a terminal and adjusts mobility management operations. The mobility management mechanism includes a first mobility management mechanism and a second mobility management mechanism. The first mobility management mechanism supports a first type of mobility management, and the second mobility management mechanism supports both the first and second types of mobility management, thereby ensuring the effectiveness of the mobility management mechanism and improving the user experience. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings required for the description of the embodiments are introduced below. The following drawings are only some embodiments of this disclosure and do not impose specific limitations on the protection scope of this disclosure.

[0017] Figure 1a is a schematic diagram of a mobility management process.

[0018] Figure 1b is a schematic diagram of a communication system architecture according to an embodiment of the present disclosure.

[0019] Figure 2 is a schematic diagram of a communication method interaction according to an embodiment of the present disclosure.

[0020] Figure 3 is a flowchart illustrating a communication method according to an embodiment of the present disclosure.

[0021] Figure 4 is a flowchart illustrating a communication method according to an embodiment of the present disclosure.

[0022] Figure 5 is a schematic diagram of the communication method interaction according to an embodiment of the present disclosure.

[0023] Figure 6a is a schematic diagram of the structure of the terminal proposed in an embodiment of this disclosure.

[0024] Figure 6b is a schematic diagram of the structure of the network device proposed in an embodiment of this disclosure.

[0025] Figure 7a is a schematic diagram of the structure of a communication device proposed in an embodiment of this disclosure.

[0026] Figure 7b is a schematic diagram of the chip structure proposed in an embodiment of this disclosure. Detailed Implementation

[0027] This disclosure provides communication methods, terminals, network devices, systems, storage media, and program products.

[0028] In a first aspect, embodiments of this disclosure propose a communication method, the method comprising: a terminal performing mobility management; the terminal adjusting a mobility management mechanism; wherein the mobility management mechanism includes a first mobility management mechanism and a second mobility management mechanism, the first mobility management mechanism supporting a first type of mobility management, and the second mobility management mechanism supporting both the first and second types of mobility management.

[0029] In some alternative embodiments of the first aspect, the method further includes: the terminal receiving first information sent by a first network device, the first information being used to indicate a first candidate configuration in the configuration information of the mobility management mechanism, the first candidate configuration corresponding to a target cell and / or a target cell group in the mobility management.

[0030] In some alternative embodiments of the first aspect, the mobility management is a second type of mobility management.

[0031] In some alternative embodiments of the first aspect, the first information is further used to indicate that the mobility management is a second type of mobility management; and / or, the first candidate configuration includes a first identifier, which is different from the second identifier corresponding to the serving cell.

[0032] In some alternative embodiments of the first aspect, the configuration information includes at least one set of first configuration information, each set of first configuration information including a second candidate configuration and conditions, and the terminal adjusting the mobility management mechanism includes: the terminal deleting the first configuration information; or, the terminal deleting the conditions; wherein the second candidate configuration corresponds to a first candidate cell and / or a first candidate cell group.

[0033] In some optional embodiments of the first aspect, the configuration information further includes at least one set of second configuration information, each set of second configuration information including a third candidate configuration; the first configuration information and the second configuration information are configured in different lists, the first configuration information corresponding to the first mobility management mechanism, and the second configuration information corresponding to the second mobility management mechanism; or, the first configuration information and the second configuration information are configured in the same list, the first configuration information corresponding to the first mobility management mechanism and / or the second mobility management mechanism, and the second configuration information corresponding to the second mobility management mechanism; the third candidate configuration corresponds to a second candidate cell and / or a second candidate cell group; the second candidate configuration includes the first candidate configuration, or the third candidate configuration includes the first candidate configuration.

[0034] In some alternative embodiments of the first aspect, the mobility management is a first type of mobility management.

[0035] In some alternative embodiments of the first aspect, the first information is further used to indicate that the mobility management is the first type of mobility management; and / or, the first candidate configuration includes a first identifier, which is the same as the second identifier corresponding to the serving cell.

[0036] In some optional embodiments of the first aspect, the terminal adjusts the mobility management mechanism, including: the terminal disables at least one set of third configuration information in the configuration information of the mobility management mechanism, each set of the third configuration information including a first candidate configuration and a condition, the first candidate configuration including a third identifier, the third identifier being different from the first identifier, the first identifier corresponding to the target cell and / or target cell group in the mobility management.

[0037] In some alternative embodiments of the first aspect, the terminal disables at least one set of third configuration information in the configuration information of the mobility management mechanism, including at least one of the following: the terminal deletes the third configuration information; the terminal does not evaluate the conditions; the terminal does not consider the cell corresponding to the first candidate configuration as a candidate cell to be evaluated.

[0038] In some optional embodiments of the first aspect, the configuration information of the mobility management mechanism includes at least one set of fourth configuration information. Each set of fourth configuration information includes a first candidate configuration, a first condition, a configuration identifier corresponding to a second candidate configuration, and a second condition. In the same set of fourth configuration information, the first cell corresponding to the first candidate configuration is a candidate cell of the current serving cell, the second cell corresponding to the second candidate configuration is a candidate cell of the first cell, and the candidate cell of the first cell is a candidate cell after the first cell becomes a serving cell. The first condition is used to trigger the mobility management, and the second condition is used to evaluate whether to trigger subsequent mobility management after the mobility management is successful. The second condition is associated with the configuration identifier.

[0039] In some optional embodiments of the first aspect, the terminal adjusts the mobility management mechanism, including at least one of the following: the terminal deletes the first condition from N sets of fourth configuration information; the terminal does not evaluate the first condition from N sets of fourth configuration information; the terminal does not consider the first cell corresponding to N sets of fourth configuration information as a candidate cell to be evaluated; wherein, the at least one set of fourth configuration information consists of the N sets of fourth configuration information and M sets of fourth configuration information, the first cell corresponding to the M sets of fourth configuration information is a second cell corresponding to a specific set of fourth configuration information, the first cell corresponding to the specific set of fourth configuration information is a target cell and / or a target cell group in the mobility management, and M and N are positive integers.

[0040] In some optional embodiments of the first aspect, the terminal adjusts the mobility management mechanism, including at least one of the following: the terminal adjusts a first condition in M ​​groups of fourth configuration information to a second condition in the specific group of fourth configuration information; the terminal evaluates the first condition in the M groups of fourth configuration information; the terminal uses the first cell corresponding to the M groups of fourth configuration information as a candidate cell to be evaluated; wherein the first cell corresponding to the specific group of fourth configuration information is a target cell and / or a target cell group in mobility management, the first cell corresponding to the M groups of fourth configuration information is a second cell corresponding to the specific group of fourth configuration information, and M is a positive integer.

[0041] In some alternative embodiments of the first aspect, the mobility management of the first type is intra-node mobility management; and / or, the mobility management of the second type is inter-node mobility management.

[0042] In a second aspect, a communication method is provided, the method comprising: a first network device adjusting a mobility management mechanism; wherein the mobility management mechanism includes a first mobility management mechanism and a second mobility management mechanism, the first mobility management mechanism supporting a first type of mobility management, and the second mobility management mechanism supporting both the first and second types of mobility management.

[0043] In some alternative embodiments of the second aspect, the method further includes: the first network device receiving second information sent by the second network device, the second information being used to indicate that the mobility management performed by the terminal was successful.

[0044] In some alternative embodiments of the second aspect, the method further includes: the first network device sending first information to the terminal, the first information being used to indicate a first candidate configuration in the configuration information of the mobility management mechanism, the first candidate configuration corresponding to a target cell and / or a target cell group in mobility management performed by the terminal.

[0045] In some alternative embodiments of the second aspect, the first information is further used to indicate that the mobility management performed by the terminal is a second type of mobility management; and / or, the first candidate configuration includes a first identifier, which is different from the second identifier corresponding to the serving cell.

[0046] In some optional embodiments of the second aspect, the configuration information includes at least one set of first configuration information, each set of first configuration information including a second candidate configuration and conditions. The first network device adjusts the mobility management mechanism, including: the first network device deleting the first configuration information; or, the first network device deleting the conditions. Wherein, the second candidate configuration corresponds to a first candidate cell and / or a first candidate cell group.

[0047] In some optional embodiments of the second aspect, the configuration information further includes at least one set of second configuration information, each set of second configuration information including a third candidate configuration; the first configuration information and the second configuration information are configured in different lists, the first configuration information corresponding to the first mobility management mechanism, and the second configuration information corresponding to the second mobility management mechanism; or, the first configuration information and the second configuration information are configured in the same list, the first configuration information corresponding to the first mobility management mechanism and / or the second mobility management mechanism, and the second configuration information corresponding to the second mobility management mechanism; the third candidate configuration corresponds to a second candidate cell and / or a second candidate cell group; the second candidate configuration includes the first candidate configuration, or the third candidate configuration includes the first candidate configuration.

[0048] In some alternative embodiments of the second aspect, the first information is further used to indicate that the mobility management is the first type of mobility management; and / or, the first candidate configuration includes a first identifier, which is the same as the second identifier corresponding to the serving cell.

[0049] In some alternative embodiments of the second aspect, the first network device adjusts the mobility management mechanism, including: the first network device deletes at least one set of third configuration information from the configuration information of the mobility management mechanism, each set of the third configuration information including a first candidate configuration and conditions, the first candidate configuration including a third identifier, the third identifier being different from the first identifier, the first identifier corresponding to the target cell and / or target cell group in the mobility management performed by the terminal.

[0050] In some optional embodiments of the second aspect, the configuration information of the mobility management mechanism includes at least one set of fourth configuration information. Each set of fourth configuration information includes a first candidate configuration, a first condition, a configuration identifier corresponding to a second candidate configuration, and a second condition. In the same set of fourth configuration information, the first cell corresponding to the first candidate configuration is a candidate cell of the current serving cell, the second cell corresponding to the second candidate configuration is a candidate cell of the first cell, and the candidate cell of the first cell is a candidate cell after the first cell becomes a serving cell. The first condition is used to trigger mobility management performed by the terminal, and the second condition is used to evaluate whether to trigger subsequent mobility management after the mobility management performed by the terminal is successful.

[0051] In some optional embodiments of the second aspect, the first network device adjusts the mobility management mechanism, including: the first network device deleting a first condition from N sets of fourth configuration information; wherein, the at least one set of fourth configuration information consists of the N sets of fourth configuration information and M sets of fourth configuration information, the first cell corresponding to the M sets of fourth configuration information is a second cell corresponding to a specific set of fourth configuration information, the first cell corresponding to the specific set of fourth configuration information is a target cell and / or a target cell group in the mobility management performed by the terminal, and M and N are positive integers.

[0052] In some optional embodiments of the second aspect, the first network device adjusts the mobility management mechanism, including: the first network device adjusts the first condition in M ​​sets of fourth configuration information to the second condition in a specific set of fourth configuration information; wherein, the first cell corresponding to the specific set of fourth configuration information is the target cell and / or target cell group in mobility management, the first cell corresponding to the M sets of fourth configuration information is the second cell corresponding to the specific set of fourth configuration information, and M is a positive integer.

[0053] In some alternative embodiments of the second aspect, the mobility management of the first type is intra-node mobility management; and / or, the mobility management of the second type is inter-node mobility management.

[0054] Thirdly, a communication method is provided, the method comprising: a terminal performing mobility management; the terminal adjusting a mobility management mechanism; a first network device adjusting the mobility management mechanism; wherein the mobility management mechanism includes a first mobility management mechanism and a second mobility management mechanism, the first mobility management mechanism supporting a first type of mobility management, and the second mobility management mechanism supporting both the first and second types of mobility management.

[0055] Fourthly, a terminal is provided, comprising: a processing module for performing mobility management; adjusting a mobility management mechanism; wherein the mobility management mechanism includes a first mobility management mechanism and a second mobility management mechanism, the first mobility management mechanism supporting a first type of mobility management, and the second mobility management mechanism supporting both the first and second types of mobility management.

[0056] In some alternative embodiments of the fourth aspect, the terminal further includes a transceiver module for receiving first information sent by a first network device, the first information being used to indicate a first candidate configuration in the configuration information of the mobility management mechanism, the first candidate configuration corresponding to a target cell and / or a target cell group in the mobility management.

[0057] In some alternative embodiments of the fourth aspect, the mobility management is of the second type.

[0058] In some alternative embodiments of the fourth aspect, the first information is further used to indicate that the mobility management is a second type of mobility management; and / or, the first candidate configuration includes a first identifier, which is different from the second identifier corresponding to the serving cell.

[0059] In some optional embodiments of the fourth aspect, the configuration information includes at least one set of first configuration information, each set of first configuration information including a second candidate configuration and conditions, and the terminal adjusting the mobility management mechanism includes: the terminal deleting the first configuration information; or, the terminal deleting the conditions; wherein, the second candidate configuration corresponds to a first candidate cell and / or a first candidate cell group.

[0060] In some optional embodiments of the fourth aspect, the configuration information further includes at least one set of second configuration information, each set of second configuration information including a third candidate configuration; the first configuration information and the second configuration information are configured in different lists, the first configuration information corresponding to the first mobility management mechanism, and the second configuration information corresponding to the second mobility management mechanism; or, the first configuration information and the second configuration information are configured in the same list, the first configuration information corresponding to the first mobility management mechanism and / or the second mobility management mechanism, and the second configuration information corresponding to the second mobility management mechanism; the third candidate configuration corresponds to a second candidate cell and / or a second candidate cell group; the second candidate configuration includes the first candidate configuration, or the third candidate configuration includes the first candidate configuration.

[0061] In some alternative embodiments of the fourth aspect, the mobility management is of the first type.

[0062] In some alternative embodiments of the fourth aspect, the first information is further used to indicate that the mobility management is the first type of mobility management; and / or, the first candidate configuration includes a first identifier, which is the same as the second identifier corresponding to the serving cell.

[0063] In some optional embodiments of the fourth aspect, the processing module adjusts the mobility management mechanism in the following manner: disabling at least one set of third configuration information in the configuration information of the mobility management mechanism, each set of third configuration information including a first candidate configuration and conditions, the first candidate configuration including a third identifier, the third identifier being different from the first identifier, the first identifier corresponding to the target cell and / or target cell group in the mobility management.

[0064] In some alternative embodiments of the fourth aspect, the processing module disables at least one set of third configuration information in the configuration information of the mobility management mechanism in at least one of the following ways: deleting the third configuration information; not evaluating the conditions; not considering the cell corresponding to the first candidate configuration as a candidate cell to be evaluated.

[0065] In some optional embodiments of the fourth aspect, the configuration information of the mobility management mechanism includes at least one set of fourth configuration information. Each set of fourth configuration information includes a first candidate configuration, a first condition, a configuration identifier corresponding to a second candidate configuration, and a second condition. In the same set of fourth configuration information, the first cell corresponding to the first candidate configuration is a candidate cell of the current serving cell, the second cell corresponding to the second candidate configuration is a candidate cell of the first cell, and the candidate cell of the first cell is a candidate cell after the first cell becomes a serving cell. The first condition is used to trigger the mobility management, and the second condition is used to evaluate whether to trigger subsequent mobility management after the mobility management is successful. The second condition is associated with the configuration identifier.

[0066] In some optional embodiments of the fourth aspect, the processing module adjusts the mobility management mechanism in at least one of the following ways: deleting the first condition in N sets of fourth configuration information; not evaluating the first condition in N sets of fourth configuration information; not using the first cell corresponding to N sets of fourth configuration information as a candidate cell to be evaluated; wherein, the at least one set of fourth configuration information consists of the N sets of fourth configuration information and M sets of fourth configuration information, the first cell corresponding to the M sets of fourth configuration information is the second cell corresponding to a specific set of fourth configuration information, the first cell corresponding to the specific set of fourth configuration information is the target cell and / or target cell group in the mobility management, and M and N are positive integers.

[0067] In some optional embodiments of the fourth aspect, the processing module adjusts the mobility management mechanism in at least one of the following ways: adjusting the first condition in the M groups of fourth configuration information to the second condition in the specific group of fourth configuration information; evaluating the first condition in the M groups of fourth configuration information; and using the first cell corresponding to the M groups of fourth configuration information as a candidate cell to be evaluated; wherein the first cell corresponding to the specific group of fourth configuration information is a target cell and / or a target cell group in mobility management, the first cell corresponding to the M groups of fourth configuration information is the second cell corresponding to the specific group of fourth configuration information, and M is a positive integer.

[0068] In some alternative embodiments of the fourth aspect, the mobility management of the first type is intra-node mobility management; and / or, the mobility management of the second type is inter-node mobility management.

[0069] Fifthly, a network device is provided, comprising: a processing module for adjusting a mobility management mechanism; wherein the mobility management mechanism includes a first mobility management mechanism and a second mobility management mechanism, the first mobility management mechanism supporting a first type of mobility management, and the second mobility management mechanism supporting both the first and second types of mobility management.

[0070] In some alternative embodiments of the fifth aspect, the first network device further includes a transceiver module for receiving second information sent by the second network device, the second information being used to indicate that the mobility management performed by the terminal was successful.

[0071] In some optional embodiments of the fifth aspect, the transceiver module is further configured to: send first information to the terminal, the first information being used to indicate a first candidate configuration in the configuration information of the mobility management mechanism, the first candidate configuration corresponding to a target cell and / or a target cell group in mobility management performed by the terminal.

[0072] In some alternative embodiments of the fifth aspect, the first information is further used to indicate that the mobility management performed by the terminal is a second type of mobility management; and / or, the first candidate configuration includes a first identifier, which is different from the second identifier corresponding to the serving cell.

[0073] In some optional embodiments of the fifth aspect, the configuration information includes at least one set of first configuration information, each set of first configuration information including a second candidate configuration and conditions. The first network device adjusts the mobility management mechanism, including: the first network device deleting the first configuration information; or, the first network device deleting the conditions. Wherein, the second candidate configuration corresponds to a first candidate cell and / or a first candidate cell group.

[0074] In some optional embodiments of the fifth aspect, the configuration information further includes at least one set of second configuration information, each set of second configuration information including a third candidate configuration; the first configuration information and the second configuration information are configured in different lists, the first configuration information corresponding to the first mobility management mechanism, and the second configuration information corresponding to the second mobility management mechanism; or, the first configuration information and the second configuration information are configured in the same list, the first configuration information corresponding to the first mobility management mechanism and / or the second mobility management mechanism, and the second configuration information corresponding to the second mobility management mechanism; the third candidate configuration corresponds to a second candidate cell and / or a second candidate cell group; the second candidate configuration includes the first candidate configuration, or the third candidate configuration includes the first candidate configuration.

[0075] In some alternative embodiments of the fifth aspect, the first information is further used to indicate that the mobility management is the first type of mobility management; and / or, the first candidate configuration includes a first identifier, which is the same as the second identifier corresponding to the serving cell.

[0076] In some optional embodiments of the fifth aspect, the processing module adjusts the mobility management mechanism in the following manner: the first network device deletes at least one set of third configuration information from the configuration information of the mobility management mechanism, each set of the third configuration information including a first candidate configuration and conditions, the first candidate configuration including a third identifier, the third identifier being different from the first identifier, the first identifier corresponding to the target cell and / or target cell group in the mobility management performed by the terminal.

[0077] In some optional embodiments of the fifth aspect, the configuration information of the mobility management mechanism includes at least one set of fourth configuration information. Each set of fourth configuration information includes a first candidate configuration, a first condition, a configuration identifier corresponding to a second candidate configuration, and a second condition. In the same set of fourth configuration information, the first cell corresponding to the first candidate configuration is a candidate cell of the current serving cell, the second cell corresponding to the second candidate configuration is a candidate cell of the first cell, and the candidate cell of the first cell is a candidate cell after the first cell becomes a serving cell. The first condition is used to trigger mobility management performed by the terminal, and the second condition is used to evaluate whether to trigger subsequent mobility management after the mobility management performed by the terminal is successful.

[0078] In some optional embodiments of the fifth aspect, the processing module adjusts the mobility management mechanism in the following manner: deleting the first condition from N sets of fourth configuration information; wherein, the at least one set of fourth configuration information consists of the N sets of fourth configuration information and M sets of fourth configuration information, the first cell corresponding to the M sets of fourth configuration information is the second cell corresponding to a specific set of fourth configuration information, the first cell corresponding to the specific set of fourth configuration information is the target cell and / or target cell group in the mobility management performed by the terminal, and M and N are positive integers.

[0079] In some optional embodiments of the fifth aspect, the processing module adjusts the mobility management mechanism in the following manner: the first condition in the M groups of fourth configuration information is adjusted to the second condition in a specific group of fourth configuration information; wherein, the first cell corresponding to the specific group of fourth configuration information is the target cell and / or target cell group in mobility management, the first cell corresponding to the M groups of fourth configuration information is the second cell corresponding to the specific group of fourth configuration information, and M is a positive integer.

[0080] In some alternative embodiments of the fifth aspect, the mobility management of the first type is intra-node mobility management; and / or, the mobility management of the second type is inter-node mobility management.

[0081] A sixth aspect provides a terminal, comprising: one or more processors; wherein the terminal is configured to execute the first aspect and any one of the communication methods in the first aspect.

[0082] A seventh aspect provides a first network device, comprising: one or more processors; wherein the network device is configured to perform the second aspect and any one of the communication methods in the second aspect.

[0083] Eighthly, a communication system is provided, including a terminal and a first network device, wherein the terminal is configured to implement the first aspect and any one of the communication methods in the first aspect, and the first network device is configured to implement the second aspect and any one of the communication methods in the second aspect.

[0084] Ninth aspect, a storage medium is provided that stores instructions, which, when executed on a communication device, cause the communication device to perform a communication method as described in the first aspect and any one thereof, or the second aspect and any one thereof.

[0085] In a tenth aspect, embodiments of this disclosure provide a program product that, when executed by a communication device, causes the communication device to perform the method as described in an optional implementation of the first or second aspect.

[0086] In one aspect, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the methods described in an optional implementation of the first or second aspect.

[0087] In a twelfth aspect, embodiments of this disclosure provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the method described in an optional implementation of the first or second aspect above.

[0088] It is understood that the terminals, access network devices, first network elements, other network elements, core network devices, communication systems, storage media, program products, computer programs, chips, or chip systems involved in the embodiments of this disclosure are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects that can be achieved can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0089] This disclosure provides communication methods, terminals, network devices, systems, storage media, and program products. In some embodiments, the terms "communication method" and "information processing method" can be used interchangeably, as can the terms "communication device" and "information processing device" and "communication device," and the terms "information processing system" and "communication system."

[0090] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0091] In each of the disclosed embodiments, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of the embodiments are consistent and can be referenced by each other. The technical environments of different embodiments can be combined to form new embodiments according to their inherent logical relationships.

[0092] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure.

[0093] In this embodiment of the disclosure, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the," "the," "the," "the," "the," "this," etc., can mean "one and only one," or "one or more," "at least one," etc. For example, when using articles such as "a," "an," "the," etc. in translation, the noun following the article can be understood as either a singular expression or a plural expression.

[0094] In the embodiments disclosed herein, "multiple" refers to two or more.

[0095] In some embodiments, the terms “at least one of”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0096] In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of B); in some embodiments, B (execute B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, A and B (both A and B are executed). The same applies when there are more branches such as A, B, C, etc.

[0097] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execution of A regardless of B); in some embodiments, B (execution of B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, C, etc.

[0098] The prefixes "first," "second," etc., used in the embodiments of this disclosure are merely for distinguishing different descriptive objects and do not impose restrictions on the position, order, priority, quantity, or content of the descriptive objects. The description of the descriptive objects is found in the claims or the context of the embodiments, and the use of prefixes should not constitute unnecessary restrictions. For example, if the descriptive object is a "field," the ordinal numbers preceding "field" in "first field" and "second field" do not restrict the position or order of the "fields." "First" and "second" do not restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the descriptive object is a "level," the ordinal numbers preceding "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the number of descriptive objects is not limited by ordinal numbers and can be one or more. For example, in "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the object being described is "device", then "first device" and "second device" can be the same device or different devices, and their types can be the same or different. Similarly, if the object being described is "information", then "first information" and "second information" can be the same information or different information, and their content can be the same or different.

[0099] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0100] In some embodiments, the terms “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “if…”, “if…”, etc., can be used interchangeably.

[0101] In some embodiments, the terms “greater than,” “greater than or equal to,” “not less than,” “more than,” “more than or equal to,” “not less than,” “higher than,” “higher than or equal to,” “not lower than,” and “above” can be used interchangeably, as can the terms “less than,” “less than or equal to,” “not greater than,” “less than,” “less than or equal to,” “not more than,” “lower than,” “lower than or equal to,” “not higher than,” and “below”.

[0102] In some embodiments, the apparatus and device may be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they may also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "body", etc.

[0103] In some embodiments, "network" can be interpreted as devices included in the network, such as access network devices, core network devices, etc.

[0104] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)," "base station (BS)," "radio base station," or "fixed station." In some embodiments, it may also be understood as "node," "access point," "transmission point (TP)," "reception point (RP)," "transmission / reception point (TRP)," "panel," "antenna panel," "antenna array," "cell," "macro cell," "small cell," "femto cell," "pico cell," "sector," "cell group," "serving cell," "carrier," "component carrier," or "bandwidth part (BWP)."

[0105] In some embodiments, "terminal" or "terminal device" may be referred to as "user equipment (UE)," "user terminal," "mobile station (MS)," "mobile terminal (MT)," "subscriber station," "mobile unit," "subscriber unit," "wireless unit," "remote unit," "mobile device," "wireless device," "wireless communication device," "remote device," "mobile subscriber station," "access terminal," "mobile terminal," "wireless terminal," "remote terminal," "handset," "user agent," "mobile client," "client," etc.

[0106] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0107] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0108] Furthermore, each element, each row, or each column in the table of this disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0109] In a communication system, a base station can send a cell switch command signaling to a terminal via the Medium Access Control Element (MAC CE) to implement the process of changing the terminal's serving cell. This process can be called a Layer 1 or Layer 2 Triggered Mobility (LTM) process. Figure 1a is a schematic diagram of a mobility management process. As shown in Figure 1a, the mobility management process may include the following steps:

[0110] Step S1101: The UE sends a measurement report to the gNB.

[0111] In some embodiments, the UE sends a measurement report to the gNB while in a Radio Resource Control (RRC) connected state.

[0112] In step S1102, the gNB sends an RRC reconfiguration message to the UE, which includes LTM candidate configurations.

[0113] In some embodiments, after receiving the measurement report, the gNB can perform LTM candidate preparation by sending the LTM candidate configuration to the UE via an RRC reconfiguration message. The LTM candidate configuration can refer to the configuration related to the candidate cell, such as for LTM or subsequent Conditional Primary Secondary Cell Addition / Change (CPAC).

[0114] In some embodiments, candidate configurations may be included in the LTM configuration information. The LTM configuration information may include, but is not limited to, one or more of the following: LTM reference configuration; one or more candidate cell configurations; and LTM Channel State Information (CSI) resource configuration. The candidate cell configuration can be configured through LTM candidates (LTM-Candidate), and may include, but is not limited to, one or more of the following: configuration identifier; candidate cell identifier; and candidate configuration.

[0115] In step S1103, the UE sends an RRC reconfiguration complete message to the gNB.

[0116] Step S1104a: The UE performs downlink synchronization with the LTM candidate cell.

[0117] In step S1104b, the UE performs uplink synchronization with the LTM candidate cell.

[0118] In some embodiments, during the LTM process, advance uplink and downlink synchronization for candidate cells is supported, thereby enabling RACH-less LTM cell switching during LTM. Currently, two methods are supported for obtaining the TA values ​​of LTM candidate cells in advance: obtaining them through Timing Advance (TA) and measuring TA based on the UE, to support RACH-less LTM cell switching. Performing advance uplink and downlink synchronization for candidate cells to achieve RACH-less LTM cell switching can effectively reduce data interruptions during handover.

[0119] In some embodiments, LTM supports Subsequent LTM. Therefore, when the terminal does not release the LTM candidate configuration after each LTM Cell Switch, it can continue to perform subsequent cell switches after mobility execution without RRC reconfiguration or reset. Supporting Subsequent LTM can effectively reduce signaling overhead.

[0120] In step S1105, the UE sends an L1 measurement report to the gNB.

[0121] In some embodiments, the gNB receives a layer 1 (L1) measurement report sent by the UE, and based on the received measurement report, it can send a Cell Switch Command signaling to the terminal via MAC CE.

[0122] In step S1106, the gNB sends a MAC CE to the UE, which includes an LTM cell handover command.

[0123] In some embodiments, after receiving an LTM cell handover command, the UE can disconnect from the source cell and apply the configuration of the target cell.

[0124] In step S1107, the UE and gNB perform a random access procedure.

[0125] Step S1108: LTM cell handover completed.

[0126] Steps S1101 to S1103 can be considered the LTM preparation phase, and steps S1104a and S1104b can be considered the pre-synchronization phase. Steps S1105 to S1107 can be considered the LTM cell handover execution phase. Step S1108 can be considered the LTM cell handover completion phase.

[0127] In some embodiments, LTM may include inter-CU LTM, intra-DU LTM, and intra-DU LTM, as well as condition-triggered LTM and event-triggered L1 measurement reporting. CU can refer to a central unit or a node. DU can refer to a distributed unit or a cell of a node.

[0128] In some embodiments, L1 measurement of LTM:

[0129] 1): L1 measurement reporting triggered by network devices (NW).

[0130] In some embodiments, intra-frequency and inter-frequency L1 measurements are supported. The L1 measurement can be based on the Layer 1 reference signal received power (L1-RSRP) measurement of the synchronization signal block (SSB).

[0131] In some embodiments, L1 measurements support semi-persistent and aperiodic reporting on the Physical Uplink Shared Channel (PUSCH) and semi-persistent and periodic reporting on the Physical Uplink Control Channel (PUCCH).

[0132] In some embodiments, L1 measurement may be a Channel Status Information-Reference Signal (CSI-RS) measurement, an L1 signal-to-interference plus-noise ratio (L1-SINR), an event-triggered L1 measurement report, and a current L1 measurement.

[0133] In some embodiments, the LTM Cell Switch Command is generated by the source cell (S-DU). In the LTM of the Intra-CU, the S-DU makes a Cell switch decision. The S-DU determines the LTM access candidate target cell based on the L1 measurement results reported by the UE, and then the S-DU sends the Cell switch command to the UE.

[0134] 2): Event-based L1 measurement reporting.

[0135] In some embodiments, to reduce measurement reports and improve mobility robustness, event-triggered measurements can be supported, and measurement reports can be reported. Event-triggered measurement reports can assist the NW side in selecting the target beam and / or cell to trigger early synchronization, or assist the NW side in selecting the target cell and / or the corresponding beam when triggering LTM Cell Switch.

[0136] A measurement report can be triggered when the measurement result of L1 meets the following event:

[0137] Event LTM2: The beam of the serving cell becomes worse than the absolute threshold.

[0138] Event LTM3: The beam of the candidate cell becomes more offset than the beam of the serving cell.

[0139] Event LTM4: The beam of a candidate cell becomes better than the absolute threshold.

[0140] Event LTM5: The beam of the serving cell becomes worse than absolute threshold 1, while the beam of the candidate cell becomes better than another absolute threshold 2.

[0141] The serving cell's beam is the current beam, which is the beam indicated by the indicated Transmission Configuration Indicator state (indicated TCI state). The candidate cell's beam is any one or more beams configured in the candidate reference signal configuration (or measurement resource configuration).

[0142] Among them, event-based L1 measurement reporting can be sent to the network via MAC CE messages.

[0143] The configuration of measurement events is in the serving cell configuration, and the configuration of measurement events is associated with the configuration of measurement resources.

[0144] In some embodiments, mobility is conditionally triggered:

[0145] In a 5G system, a terminal can use a network-preconfigured condition and a corresponding preconfigured cell (or cell group). When the terminal meets the preconfigured condition (e.g., a specific measurement event), the terminal will change its serving cell (or cell group) to the preconfigured cell (or cell group).

[0146] The terminal can also change the configuration of a specific cell (or cell group) after the "pre-configured conditions" are met, according to network instructions. (For example, changing the terminal's PCell configuration from candidate cell (or cell group) configuration-1 to candidate cell (or cell group) configuration-2.)

[0147] The aforementioned mobility supports subsequent mobility, continuous mobility, and ongoing mobility. Subsequent mobility includes any mobility operation in which the UE does not automatically delete the mobility configuration information after the mobility operation is performed. The mobility configuration information includes candidate mobility configurations.

[0148] In some cases, mobility configuration information can continue to be used to trigger subsequent mobility even without RRC reconfiguration and updates.

[0149] This "condition-triggered mobility process" includes:

[0150] Conditionally triggered layer 3 (L3) mobility;

[0151] Conditional Handover (CHO);

[0152] Conditional PSCell Addition (CPA) for primary and secondary cells (or cell groups);

[0153] Conditional PSCell Change (CPC);

[0154] Conditional handover with Candidate SCG(s) for conditional auxiliary cell groups;

[0155] Conditional handover of target secondary cell group (CHO with target SCG).

[0156] Conditional LTM.

[0157] The aforementioned mobility operations such as CHO, CPA, and CPC all support subsequent mobility, namely, subsequent conditional handover (Subsequent CHO), subsequent conditional addition of primary and secondary cells (or cell groups) (Subsequent CPA), and subsequent conditional change of primary and secondary cells (or cell groups) (Subsequent CPC).

[0158] Condition-triggered LTM can be used for MCG changes and SCG changes, including:

[0159] Conditional LTM for Master Cell Group (MCG);

[0160] Conditional LTM for Secondary Cell Groups (SCGs).

[0161] Currently, Conditional LTM is supported in intra-CU scenarios. Furthermore, Conditional LTM supports Subsequent Conditional LTM. This means that after executing Conditional LTM, the UE retains the Conditional LTM configuration for subsequent Conditional LTM triggers.

[0162] Currently, inter-CU LTM triggered by the Cell Switch Command MAC CE is supported. Inter-CU LTM also supports Subsequent LTM.

[0163] However, if Conditional LTM and LTM coexist, and the network side configures both Conditional LTM and LTM for the UE, when the network side triggers the UE to execute inter-CU LTM, the configuration of Conditional LTM will become invalid because Conditional LTM only supports intra-CU scenarios.

[0164] Therefore, this disclosure provides a communication method that performs mobility management through a terminal and adjusts the mobility management mechanism, wherein the mobility management mechanism includes a first mobility management mechanism and a second mobility management mechanism. The first mobility management mechanism supports a first type of mobility management, and the second mobility management mechanism supports both the first and second types of mobility management, thereby ensuring the effectiveness of the mobility management mechanism and improving the user experience.

[0165] Figure 1b is a schematic diagram of a communication system architecture according to an embodiment of the present disclosure.

[0166] As shown in Figure 1b, the communication system 100 includes a terminal 101, a first network device 102, and a second network device 103.

[0167] In some embodiments, terminal 101 includes, but is not limited to, at least one of the following: mobile phone, wearable device, Internet of Things device, car with communication function, smart car, tablet computer, computer with wireless transceiver function, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal device in industrial control, wireless terminal device in self-driving, wireless terminal device in remote medical surgery, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city, and wireless terminal device in smart home.

[0168] In some embodiments, the network devices included in the communication system may be a first network device 102 and a second network device 103. For example, the first network device 102 and the second network device 103 may be different cells of the same base station. Alternatively, the first network device 102 and the second network device 103 may be different base stations. For example, the first network device 102 may be the current serving cell, or the access network device or core network device where the current serving cell is located. The second network device 103 may be the serving cell after the terminal performs mobility management, or the access network device or core network device where the serving cell after performing mobility management is located.

[0169] In some embodiments, the network device appearing in this disclosure, when not explicitly identified as a first network device or a second network device, may be at least one of a first network device and a second network device.

[0170] In some embodiments, the access network device is, for example, a node or device that connects a terminal to a wireless network. The access network device may include, but is not limited to, at least one of the following in a 5G communication system: evolved Node B (eNB), next-generation eNB (ng-eNB), next-generation Node B (gNB), node B (NB), home node B (HNB), home evolved node B (HeNB), radio backhaul device, radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), base band unit (BBU), mobile switching center, base station in a 6G communication system, open RAN, cloud RAN, base station in other communication systems, and access node in a Wi-Fi system.

[0171] In some embodiments, the technical solutions of this disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within access network devices involved in the embodiments of this disclosure can be transformed into internal interfaces of Open RAN. The processes and information interactions between these internal interfaces can be implemented by software or programs.

[0172] In some embodiments, the access network device may be composed of a central unit (CU) and a distributed unit (DU). The CU may also be called a control unit. The CU-DU structure can separate the protocol layer of the access network device. Some of the protocol layer functions are centrally controlled by the CU, while the remaining part or all of the protocol layer functions are distributed in the DU and centrally controlled by the CU. However, this is not the only possibility.

[0173] In some embodiments, a core network device may be a single device comprising one or more network elements, or it may be multiple devices or a group of devices, each comprising all or part of the aforementioned one or more network elements. Network elements may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), or a Next Generation Core (NGC).

[0174] It is understood that the communication system described in this disclosure is for the purpose of more clearly illustrating the technical solutions of this disclosure, and does not constitute a limitation on the technical solutions proposed in this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions proposed in this disclosure are also applicable to similar technical problems.

[0175] The following embodiments of this disclosure can be applied to the communication system 100 shown in FIG1b, or to some of the main bodies, but are not limited thereto. The main bodies shown in FIG1b are illustrative. The communication system may include all or some of the main bodies in FIG1b, or it may include other main bodies outside of FIG1b. The number and form of each main body are arbitrary. Each main body may be physical or virtual. The connection relationship between the main bodies is illustrative. The main bodies may not be connected or may be connected. The connection can be in any way, it can be a direct connection or an indirect connection, it can be a wired connection or a wireless connection.

[0176] The embodiments disclosed herein can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 6th generation mobile communication system (6G), 5G New Radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New Radio Access (NX), Future Generation Radio Access (FX), Global System for Mobile Communications (GSM), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), and IEEE 802.20, Ultra-Wideband (UWB), Bluetooth (a registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X) systems, systems utilizing other communication methods, and next-generation systems built upon them, etc. Furthermore, multiple systems can be combined (e.g., a combination of LTE or LTE-A with 5G).

[0177] Figure 2 is a schematic diagram of a communication method interaction according to an embodiment of the present disclosure. As shown in Figure 2, this embodiment of the present disclosure relates to a communication method for a communication system 100, the method including:

[0178] In step S2101, the first network device 102 sends the mobility management mechanism configuration information to the terminal 101.

[0179] In some embodiments, terminal 101 receives configuration information of mobility management mechanism sent by first network device 102.

[0180] In some embodiments, mobility management may include LTM, Conditional LTM (CLTM), CHO, CPAC, and handover, but is not limited to these. Taking handover as an example, when a terminal switches from its current serving cell to a target cell, it can be considered that mobility management has been performed. If the terminal successfully switches to the target cell, it can be considered that mobility management has been successfully performed.

[0181] In some embodiments, successful execution of mobility management includes one or more of the following:

[0182] 1) If the terminal sends an RRC reconfiguration complete message to the target cell, the terminal can consider that mobility management has been successfully performed, that is, mobility management has been successfully completed.

[0183] 2) If the terminal performs a random access (RA) procedure, the terminal can consider that it has successfully performed mobility management when the random access procedure is successfully completed.

[0184] 3) For mobility management without a random access procedure, when the terminal determines that the network device has successfully received its initial uplink data, the terminal considers that mobility management has been successfully performed, that is, the mobility management has been successfully completed.

[0185] In some embodiments, the mobility management mechanism is a mechanism by which the terminal performs mobility management, or it can be understood as a mode by which the terminal performs mobility management. The terminal can perform mobility management according to the mobility management mechanism. For example, the mobility management mechanism can be one where the network device instructs the terminal to perform mobility management. If the terminal supports this mobility management mechanism, it can receive a cell handover command sent by the network device and hand over to the target cell indicated by the cell handover command, thereby completing mobility management. Another example is a mobility management mechanism that is triggered by conditions. If the terminal supports this mobility management mechanism, it can evaluate whether a candidate cell meets the conditions. If the conditions are met, it can hand over to that candidate cell. Evaluating whether a candidate cell meets the conditions could include evaluating whether the channel quality of the candidate cell meets the conditions, but is not limited to this.

[0186] Optionally, the cell handover command can be any one or more of the following: physical layer messages, MAC CE, RRC signaling, etc., but is not limited to these.

[0187] Optionally, the cell handover command can be an RRC reconfiguration message, or a Cell Switch Command MAC CE, etc., but is not limited to these.

[0188] Alternatively, the cell handover command may also be referred to as any one or more of the following: mobility trigger command, cell add command, cell change command, but is not limited to these:

[0189] Optionally, the triggering condition for mobility management can be an L1 measurement event-based triggering condition. The L1 measurement event can also be called a mobility measurement event or a beam-level measurement event. The mobility measurement event can be, for example, an LTM measurement event or a CHO measurement event. The triggering condition based on the L1 measurement event includes, but is not limited to, any of the following:

[0190] Event LTM2: The beam of the serving cell becomes worse than the absolute threshold.

[0191] Event LTM3: The beam of the candidate cell becomes more offset than the beam of the serving cell.

[0192] Event LTM4: The beam of a candidate cell becomes better than the absolute threshold.

[0193] Event LTM5: The beam of the serving cell becomes worse than absolute threshold 1, while the beam of the candidate cell becomes better than another absolute threshold 2.

[0194] Optionally, the mobility trigger condition can be an L3 measurement event-based trigger condition, including but not limited to any of the following:

[0195] Conditional event A3: In conditional reconfiguration, the candidate cell corresponding to the candidate configuration becomes better than the primary cell or primary / secondary cell (the amount of offset becomes better than PCell / PSCell);

[0196] Conditional event A4: In conditional reconfiguration, the candidate cell corresponding to the candidate configuration becomes better than the absolute threshold.

[0197] Conditional event A5: The primary cell or primary / secondary cell becomes worse than absolute threshold 1, and the candidate cell corresponding to the conditional reconfiguration becomes better than another absolute threshold 2.

[0198] Condition event A4 can also be used when the current PSCell has a candidate secondary cell group CHO (e.g., it is configured as a candidate PSCell for evaluation by condition event A4).

[0199] In some embodiments, conditional reconfiguration may refer to the configuration information of a mobility management mechanism, for example, the configuration information of a mobility management mechanism that triggers mobility management based on conditions.

[0200] It is understood that in the embodiments of this disclosure, "XX cell is better than the threshold" or "XX beam is better than the threshold" means that the signal quality, signal strength, and other parameters of XX cell or XX beam are better than the threshold. Of course, the parameters are not limited to signal quality or signal strength, and this disclosure does not provide examples of each, but is not limited thereto.

[0201] It is understood that the examples of mobility management and mobility management mechanisms in this disclosure are merely illustrative and not limited thereto.

[0202] In some embodiments, the mobility management mechanism includes a first mobility management mechanism and a second mobility management mechanism. For example, the mobility management mechanism supported by terminal 101 includes a first mobility management mechanism and a second mobility management mechanism. The first mobility management mechanism supports a first type of mobility management, and the terminal can perform the first type of mobility management according to the first mobility management mechanism. The second mobility management mechanism supports both the first and second types of mobility management, and the terminal can perform the first type of mobility management and / or the second type of mobility management according to the second mobility management mechanism.

[0203] It is understandable that the terminal supports both the first and second mobility management mechanisms. The first mobility management mechanism supports the first type of mobility management. When the terminal executes the second type of mobility management, the first mobility management mechanism may become ineffective. If the terminal subsequently continues to execute mobility management according to the first mobility management mechanism, unreasonable mobility management may occur, such as switching to an inappropriate cell. Therefore, the terminal can adjust its mobility management mechanism to avoid the aforementioned problems.

[0204] In some embodiments, the first type of mobility management can be inter-node mobility management, but is not limited thereto. The node can be one or more of a Central Unit (CU), Master Node (MN), and Secondary Node (SN). Inter-node mobility management can be at least one of intra-CU, intra-MN, and intra-SN, but is not limited thereto.

[0205] In some embodiments, the second type of mobility management can be inter-node mobility management, but is not limited thereto. For example, inter-node mobility can be at least one of inter-CU, inter-MN, and inter-SN, but is not limited thereto.

[0206] In some embodiments, the first type of mobility management can be LTM, CHO, CPAC, etc.; wherein the first mobility management mechanism is a mobility management mechanism that supports subsequent.

[0207] In some embodiments, the second type of mobility management can be LTM, handover, CHO, CPAC, etc., and the second mobility management mechanism can support cross-node (gNB / MN / SN / Node) (or cross-CU) mobility and intra-node (gNB / MN / SN / Node) (or intra-CU) mobility management mechanisms.

[0208] For example, suppose the first type of mobility management is intra-node mobility management, and the second type is inter-node mobility management. Since the first mobility management mechanism supports intra-node mobility management, its candidate configuration information also corresponds to candidate cells within the node. If the terminal performs the second type of mobility management, such as inter-node cell handover, then the candidate cells corresponding to the first mobility management mechanism will not be applicable to subsequent first-type mobility management, and the terminal can adjust the mobility management mechanism accordingly.

[0209] For example, the terminal's current serving cell is cell A, and the candidate cells for the current serving cell are cells B, C, and D. Cell B and cell A belong to the same node, while cells C and D belong to the same node but different nodes from cell A. Assuming the first type of mobility management is intra-node mobility management, the first mobility management mechanism could determine whether the terminal needs to hand over to cell B within the node. The candidate cell corresponding to the candidate configuration in the first mobility management mechanism's configuration information is cell B. If the terminal performs inter-node mobility management, such as handing over to cell C, then for cell C, if the first type of mobility management is to be performed, it needs to hand over to cell D. That is, the first mobility management mechanism needs to determine whether the terminal needs to hand over to cell D; therefore, the candidate cell corresponding to the first mobility management mechanism should be cell D, but the candidate cell corresponding to the first mobility management mechanism is cell B. Therefore, the terminal can adjust the mobility management mechanism.

[0210] In some embodiments, the terminal may adjust the mobility management mechanism by modifying its configuration information, such as by adding, deleting, or replacing parts of the configuration information. Alternatively, it may adjust how the configuration information is used, for example, by evaluating only the parts of the configuration information that meet the requirements.

[0211] In some embodiments, the first mobility management mechanism may be condition-triggered mobility management, but is not limited to this.

[0212] In some embodiments, the second mobility management mechanism may be that the terminal is instructed by the first network device to perform mobility management, but is not limited thereto.

[0213] In some embodiments, the configuration information of the first mobility management mechanism and the configuration information of the second mobility management mechanism can be configured using different information elements, for example, they can be configured using different RRC information elements. For instance, the configuration information of the first mobility management mechanism and the configuration information of the second mobility management mechanism may correspond to different configuration lists. In this case, the configuration information of the mobility management mechanism includes two lists, corresponding to the configuration information of the first mobility management mechanism and the configuration information of the second mobility management mechanism, respectively. For example, the different lists may each include one or more configuration information of the first mobility management mechanism and one or more configuration information of the second mobility management mechanism.

[0214] In some embodiments, the configuration information of the first mobility management mechanism and the configuration information of the second mobility management mechanism can be configured using the same information element, for example, the same RRC information element. For instance, the configuration information of the first mobility management mechanism and the configuration information of the second mobility management mechanism may correspond to the same configuration list. In this case, the configuration information of the mobility management mechanism is a list that includes the configuration information of the first mobility management mechanism and the configuration information of the second mobility management mechanism. For example, it may include one or more configuration information of the first mobility management mechanism and one or more configuration information of the second mobility management mechanism.

[0215] In some embodiments, the configuration information of the first mobility management mechanism can be used for mobility management under the first mobility management mechanism or for mobility management under the second mobility management mechanism. For example, the second mobility management mechanism instructs the terminal to perform mobility management by the first network device. The first network device can indicate a candidate configuration in the configuration information of the second mobility management mechanism or a candidate configuration in the configuration information of the first mobility management mechanism. The terminal can then switch to the candidate cell corresponding to the candidate configuration indicated by the first network device.

[0216] In some embodiments, the configuration information of the first mobility management mechanism is used only for mobility management under the first mobility management mechanism.

[0217] In some embodiments, whether the configuration information of the first mobility management mechanism can be used for mobility management under the second mobility management mechanism can be configured by the first network device or agreed upon by a protocol. For example, the first network device can configure the terminal to determine whether the configuration information of the first mobility management mechanism can be used for mobility management under the second mobility management mechanism. Alternatively, the terminal and the first network device can determine whether the configuration information of the first mobility management mechanism can be used for mobility management under the second mobility management mechanism according to the provisions of the protocol.

[0218] In step S2102, the first network device 102 sends the first information to the terminal 101.

[0219] In some embodiments, terminal 101 receives first information sent by first network device 102.

[0220] In some embodiments, the first information is used to indicate a first candidate configuration in the configuration information of the mobility management mechanism, so as to enable the terminal to perform mobility management. It is understood that the configuration information of the mobility management mechanism includes candidate configurations. The first network device can indicate one of the candidate configurations through the first information, and the candidate cell corresponding to this indicated candidate configuration becomes the target cell in mobility management, that is, the terminal can switch to (or access) this candidate cell. In this disclosure, the candidate configuration indicated by the first information is referred to as the first candidate configuration indicated by the first information. The first candidate configuration indicated by the first information corresponds to a target cell and / or a group of target cells. For example, the terminal receives the first information and determines the candidate cell corresponding to the first candidate configuration indicated by the first information as the target cell, switches to (or accesses) the target cell, and completes mobility management. And / or, the candidate cell group corresponding to the first candidate configuration indicated by the first information is determined as the target cell group, and the terminal switches to (or accesses) the target cell group, and completes mobility management.

[0221] Optionally, the first information is also used to indicate whether the mobility management performed by the terminal is of the first type or the second type. The terminal can determine whether the mobility management performed by the terminal is of the first type or the second type based on the first information.

[0222] Optionally, the first candidate configuration indicated by the first information includes a first identifier. Since the first candidate configuration indicated by the first information corresponds to a target cell and / or a target cell group, and the first identifier also corresponds to a target cell and / or a target cell group, the terminal can determine whether the mobility management performed by the terminal is of type one or type two based on the first identifier. For example, each cell can correspond to a set identifier, and different cells of the same node can correspond to the same set identifier. The first identifier is the set identifier (set ID) corresponding to the target cell and / or the target cell group. Assuming the set identifier corresponding to the terminal's current serving cell is the second identifier, if the first identifier and the second identifier are the same, then the terminal's current serving cell and the target cell are cells of the same node, and the terminal performs type one mobility management, which is intra-node mobility management. If the first identifier and the second identifier are different, then the terminal's current serving cell and the target cell are cells of different nodes, and the terminal performs type two mobility management, which is inter-node mobility management.

[0223] It is understood that in the above embodiments, only the configuration information of the mobility management mechanism, including candidate configurations, is described, but it is not limited to this. The configuration information of the mobility management mechanism includes various configuration information used to perform mobility management, such as early synchronization-related configurations. For example, it may include conditions. For instance, the terminal evaluates whether the channel quality of the candidate cell meets the conditions; if the channel quality meets the conditions, the terminal performs mobility management. This mobility management mechanism can be called condition-triggered mobility management. If the first mobility management mechanism is a condition-triggered mobility management mechanism, then the configuration information of the mobility management mechanism may include conditions.

[0224] In some embodiments, the name of the first information is not limited, and it may be, for example, "instruction information", "configuration information", or a cell handover command, but is not limited thereto.

[0225] In step S2103, terminal 101 performs mobility management.

[0226] In some embodiments, terminal 101 may perform mobility management, for example, according to a first mobility management mechanism. Alternatively, it may perform mobility management according to a second mobility management mechanism.

[0227] In some embodiments, the second mobility management mechanism may be a first network device instructing a terminal to perform mobility management. The first information may be a cell handover command, and the terminal may perform mobility management under the second mobility management mechanism based on the first information. For example, if the candidate cell corresponding to the first candidate configuration indicated by the first information and the current serving cell belong to the same node, then the first type of mobility management is performed; if the candidate cell corresponding to the first candidate configuration indicated by the first information and the current serving cell belong to different nodes, then the second type of mobility management is performed.

[0228] In some embodiments, the first mobility management mechanism can be condition-triggered mobility management, whereby the terminal can evaluate whether the candidate cell corresponding to the candidate configuration meets the conditions. If the conditions are met, the terminal can perform mobility management to the candidate cell.

[0229] In step S2104, terminal 101 determines that the mobility management being performed is the second type of mobility management.

[0230] In some embodiments, the terminal may determine that the mobility management performed in step S2103 is a second type of mobility management.

[0231] In some embodiments, the terminal may determine, based on first information, that the mobility management being performed is of the second type. The first information may indicate that the mobility management currently being performed by the terminal is of the second type.

[0232] In some embodiments, the terminal may determine that the mobility management being performed is of the second type based on a first identifier. The first identifier corresponds to the target cell and / or target cell group in the currently performed mobility management. If the first identifier is the same as the second identifier corresponding to the serving cell, then the mobility management being performed by the terminal can be determined to be of the first type. If the first identifier and the second identifier are different, then the mobility management being performed by the terminal can be determined to be of the second type.

[0233] It is understood that step S2104 is optional. For example, after determining that the mobility management being implemented is of the second type, the terminal can adjust the mobility management mechanism, in which case step S2104 is executable. Alternatively, the terminal may not be certain which type of mobility management is being implemented, or the terminal may determine that the mobility management being implemented is of the first type; in this case, the terminal can also adjust the mobility management mechanism, and step S2104 can be omitted.

[0234] In step S2105, terminal 101 confirms that the second type of mobility management has been successfully executed.

[0235] In some embodiments, the terminal can determine whether the second type of mobility management has been successfully executed. For example, when the terminal switches from a first network device to a second network device, the second network device can send a mobility management completion message or a random access success message to the terminal. Upon receiving such a message, the terminal determines that mobility management has been successfully executed. For example, if the terminal determines that the currently executed mobility management is the second type and then determines that the current mobility management has been successfully executed, then the second type of mobility management can be determined to have been successfully executed. As another example, if the terminal receives a mobility management completion message or a random access success message from the second network device, or if the terminal determines that the second network device has successfully received the initial uplink data sent by the terminal and determines that the first and second network devices belong to different nodes, then the second type of mobility management can be determined to have been successfully executed.

[0236] In some embodiments, if the second type of mobility management performed by the terminal is successful, the terminal may adjust the mobility management mechanism. If the second type of mobility management performed by the terminal fails, the terminal may not adjust the mobility management mechanism.

[0237] It is understandable that step S2105 is optional. For example, if the terminal adjusts the mobility management mechanism after confirming that the second type of mobility management has been successfully executed, then step S2104 is executable. Alternatively, if the terminal is unsure whether mobility management has been successfully executed, or if the terminal confirms that the first type of mobility management has been successfully executed, the terminal can also adjust the mobility management mechanism, in which case step S2104 can be omitted.

[0238] Step S2106: Terminal 101 adjusts the mobility management mechanism.

[0239] In some embodiments, the mobility management mechanism configuration information includes at least one set of first configuration information, each set of first configuration information including a second candidate configuration and conditions, wherein the second candidate configuration included in the first configuration corresponds to a first candidate cell and / or a group of first candidate cells. Adjusting the mobility management mechanism by the terminal includes: the terminal deleting the first configuration information; or, the terminal deleting the conditions.

[0240] In some embodiments, the configuration information of the mobility management mechanism further includes at least one set of second configuration information, each set of second configuration information including a third candidate configuration.

[0241] In some embodiments, the first configuration information includes a second candidate configuration and conditions. When the first mobility management mechanism triggers mobility management based on conditions, the first configuration information may correspond to the first mobility management mechanism; that is, the configuration information of the first mobility management mechanism may include the second candidate configuration and conditions. The second configuration information includes a third candidate configuration. When the second mobility management mechanism instructs the terminal to perform mobility management via a network device, the second configuration information may correspond to the second mobility management mechanism; that is, the configuration information of the second mobility management mechanism may include the third candidate configuration.

[0242] In some embodiments, if the first configuration information and the second configuration information are configured in different lists, the first configuration information may correspond to the first mobility management mechanism, and the second configuration information may correspond to the second mobility management mechanism.

[0243] In some embodiments, if the first configuration information and the second configuration information are configured in the same list, then the first configuration information corresponds to the first mobility management mechanism and / or the second mobility management mechanism, and the second configuration information corresponds to the second mobility management mechanism.

[0244] Of course, if the first configuration information and the second configuration information are configured in different lists, the first configuration information can also correspond to the second mobility management mechanism, and this disclosure does not limit this.

[0245] In some embodiments, if the terminal is currently performing mobility management of the second type, the terminal may delete the first configuration information. After deleting the first configuration information, the terminal will no longer perform mobility management under the first mobility management mechanism, avoiding unreasonable mobility management based on conditional triggering. For example, if the first configuration information and the second configuration information are configured in different lists, deleting the first configuration information means deleting the list corresponding to the first configuration information. If the first configuration information and the second configuration information are configured in the same list, deleting the first configuration information means deleting the part of the list corresponding to the first configuration information.

[0246] In some embodiments, if the mobility management currently being performed by the terminal is of the second type, the terminal may delete the conditions in the first configuration information. After deleting the conditions in the first configuration information, the terminal will no longer perform mobility management under the first mobility management mechanism, avoiding the triggering of terminal conditions and the execution of unreasonable mobility management. For example, if the first configuration information and the second configuration information are configured in different lists, then deleting the first configuration information means deleting the conditions in the list corresponding to the first configuration information. If the first configuration information and the second configuration information are configured in the same list, then deleting the first configuration information means deleting the conditions in the list of the first configuration information.

[0247] In some embodiments, after the terminal deletes the conditions in the first configuration information, the first configuration information also includes a second candidate configuration, which can be used for mobility management under the second mobility management mechanism.

[0248] In some embodiments, the configuration information of the mobility management mechanism includes at least one set of third configuration information. Each set of third configuration information includes a first candidate configuration and a condition. The first candidate configuration included in the third configuration information includes a third identifier, which is different from the first identifier. The first identifier corresponds to a target cell and / or a target cell group, and the target cell and / or target cell group are the target cells and / or target cell groups in the mobility management performed by the terminal. Adjusting the mobility management mechanism by the terminal includes disabling at least one set of third configuration information in the configuration information of the mobility management mechanism.

[0249] In some embodiments, the third configuration information includes a first candidate configuration and conditions. When the terminal is configured with the third configuration information, the terminal can evaluate whether the candidate cell corresponding to the first candidate configuration in the third configuration information meets the conditions. If the conditions are met, a handover to that candidate cell can be triggered. Since condition-triggered mobility management is often intra-node mobility management, it supports handover to the target cell of the same node but not to the target cell of a different node. Therefore, the candidate cell corresponding to the first candidate configuration in the third configuration information often belongs to the same node as the terminal's serving cell. After successfully executing the current mobility management, the terminal's serving cell becomes the target cell in mobility management. Assuming the target cell corresponds to a first identifier, if the first identifier and the third identifier are different, the terminal can avoid executing unreasonable mobility management by disabling the third configuration information.

[0250] In some embodiments, disabling the third configuration information in the mobility management mechanism configuration information includes at least one of the following: the terminal deletes the third configuration information; the terminal does not evaluate the conditions included in the third configuration information; the terminal does not consider the cell corresponding to the first candidate configuration in the third configuration information as a candidate cell to be evaluated.

[0251] Optionally, disabling third configuration information on the terminal can be achieved by deleting the third configuration information. If the terminal deletes the third configuration information, mobility management will no longer be triggered based on the third configuration information, thus avoiding the execution of unreasonable mobility management.

[0252] Optionally, disabling the third configuration information on the terminal can be achieved by not evaluating the conditions included in the third configuration information, that is, not evaluating whether the candidate cell corresponding to the first candidate configuration in the third configuration information meets the conditions. This is because if the conditions are met, mobility management will be triggered. By not evaluating the conditions included in the third configuration information, unreasonable mobility management can be avoided.

[0253] Optionally, disabling the third configuration information on the terminal can mean not considering the cell corresponding to the first candidate configuration in the third configuration information as a candidate cell to be evaluated. That is, not evaluating the candidate cell corresponding to the first candidate configuration in the third configuration information to avoid performing unreasonable mobility management.

[0254] In some embodiments, the configuration information of the mobility management mechanism includes at least one set of fourth configuration information. Each set of fourth configuration information includes a first candidate configuration, a first condition, a configuration identifier corresponding to a second candidate configuration, and a second condition associated with the configuration identifier. In the same set of fourth configuration information, the first cell corresponding to the first candidate configuration is a candidate cell of the current serving cell, and the second cell corresponding to the second candidate configuration is a candidate cell of the first cell. The candidate cell of the first cell represents the candidate cell after the first cell becomes the serving cell. The first condition is used to trigger mobility management, and the second condition is used to evaluate whether to trigger subsequent mobility management after successful mobility management.

[0255] In some embodiments, when the terminal successfully performs mobility management, the first condition in the fourth configuration information may no longer be suitable for subsequent mobility management. In this case, the terminal may delete part of the first condition in the fourth configuration information, or not evaluate part of the first condition in the fourth configuration information, or not use the first cell corresponding to the first candidate configuration in part of the fourth configuration information as a candidate cell to be evaluated. For example, part of the fourth configuration information may be N sets of fourth configuration information.

[0256] In some embodiments, the terminal adjusts the mobility management mechanism, including at least one of the following: the terminal deletes the first condition in N sets of fourth configuration information; the terminal does not evaluate the first condition in N sets of fourth configuration information; the terminal does not use the first cell corresponding to the first candidate configuration in N sets of fourth configuration information as a candidate cell to be evaluated; wherein, at least one set of fourth configuration information consists of N sets of fourth configuration information and M sets of fourth configuration information, the first cell corresponding to the M sets of fourth configuration information is the second cell corresponding to a specific set of fourth configuration information, the first cell corresponding to the first candidate configuration in the specific set of fourth configuration information is the target cell and / or the target cell group, and the target cell and / or the target cell group is the target cell and / or the target cell group in the mobility management performed by the terminal.

[0257] In some embodiments, the first condition can be a condition of a condition-triggered LTM (CLTM), and the second condition can be a subsequent CLTM (S-CLTM). Conditions can be associated with events. For example, as shown in Table 1, one row in Table 1 represents a set of fourth configuration information. The fourth configuration information includes a first candidate configuration, which may include, for example, a configuration identifier, a candidate cell identifier, and a set identifier corresponding to the candidate cell. The set identifier indicates the node to which the candidate cell belongs. Taking the first row as an example, the configuration identifier of the first candidate configuration in the first set of fourth configuration information is ConfigID 1, the candidate cell of the first configuration information is Cell 1, and the set identifier corresponding to the candidate cell of the first candidate configuration is CU1. The first condition in Table 1 is the first condition in the fourth configuration information. Taking the third row of Table 1 as an example, the first condition of the third set of fourth configuration information can be event 9 for CLTM. The second condition in Table 1 is the second condition in the fourth configuration information. Taking the first row of Table 1 as an example, the first condition of the first set of fourth configuration information is event 1 for S-CLTM. In Table 1, the identifier preceding the second condition is the configuration identifier of the second candidate configuration associated with the second condition. Taking the first row of Table 1 as an example, the configuration identifier of the second candidate configuration is ConfigID 2. Assume the current serving cell is cell 6. CU1 and CU2 represent two different nodes, and Cells 1 to 5 correspond to different candidate cells of the serving cell. Specifically, CU1 Cell 1 can represent the first candidate cell and belongs to the first node; CU1 Cell 2 can represent the second candidate cell and belongs to the first node; CU2 Cell 3 represents the third candidate cell and belongs to the second node; CU2 Cell 4 represents the fourth candidate cell and belongs to the second node; and CU2 Cell 5 represents the fifth candidate cell and belongs to the second node. The candidate cells of the current serving cell are the first cells corresponding to the first candidate configurations, meaning CU1 Cell 1 to CU2 Cell 5 are the first cells corresponding to multiple first candidate configurations. ConfigID 1 after CU1 Cell 1 to ConfigID 5 after CU2 Cell 5 are the configuration identifiers for the first candidate configuration. ConfigID 2 before S-CLTM event 1 to ConfigID 4 before S-CLTM event 7 are the configuration identifiers for the second candidate configuration. The cells corresponding to ConfigID 2 before S-CLTM event 1 to ConfigID 4 before S-CLTM event 7 are the second cells corresponding to the second candidate configuration.In this disclosure, the candidate cell corresponding to the first candidate configuration is referred to as the first cell, and the candidate cell corresponding to the second candidate configuration is referred to as the second cell, but the cell name is not limited to these terms.

[0258] Table 1

[0259] In some embodiments, taking Table 1 as an example, the first cell corresponding to the first candidate configuration is a specific set of fourth configuration information for the target cell and / or the target cell group. Assume the terminal's current serving cell is CU 2 Cell 6, i.e., cell 6 within the second node. The network device instructs the terminal to switch from CU 2 Cell 6 to CU1 Cell 1, i.e., from cell 6 within the second node to cell 1 within the first node. Then the target cell is CU1 Cell 1, and the first cell corresponding to the first candidate configuration is CU1 Cell 1, which is the first row in Table 1. In this example, the specific set of fourth configuration information is the first row in Table 1. The first cell corresponding to M sets of fourth configuration information is the second cell corresponding to the specific set of fourth configuration information. If the specific set of fourth configuration information is the first row in Table 1, and the second cell corresponding to the specific set of configuration information is the candidate cell corresponding to the configuration identifier of the second candidate configuration included in the specific set of configuration information, i.e., the candidate cell corresponding to ConfigID 2, and the first cell corresponding to M sets of fourth configuration information is the candidate cell corresponding to ConfigID 2, then the M sets of fourth configuration information are the second row in Table 1. When the target cell is CU1 Cell 1 in Table 1, the fourth configuration information of group M is the second row of Table 1. Table 1 contains the fourth configuration information of group N, excluding the fourth configuration information of group M. The terminal deletes the first condition in the fourth configuration information of group N, which can mean deleting the first condition corresponding to any row other than the second row. The terminal does not evaluate the first condition in the fourth configuration information of group N, which can mean not evaluating whether the candidate cells corresponding to any row other than the second row meet the first condition. The terminal does not consider the first cell corresponding to the first candidate configuration in the fourth configuration information of group N as a candidate cell to be evaluated, which can mean considering the candidate cells corresponding to any row other than the second row as candidate cells to be evaluated.

[0260] In some embodiments, the terminal adjusts the mobility management mechanism, including at least one of the following: the terminal adjusts the first condition in the fourth configuration information of M groups to the second condition in a specific group of fourth configuration information; the terminal evaluates the first condition in the fourth configuration information of M groups; and the terminal uses the first cell corresponding to the fourth configuration information of M groups as a candidate cell to be evaluated.

[0261] In some embodiments, taking Table 1 as an example, assuming the terminal's current serving cell is CU 2 Cell 6, and the UE receives Config ID 1 in the Cell Switch Command, the terminal performs mobility management and accesses CU1 Cell 1. As in the above embodiment, in this case, a specific set of fourth configuration information is the first row of Table 1, and M sets of fourth configuration information are the second row of Table 1. For example, N sets of fourth configuration information can be any row other than the second row. The terminal can delete the first condition in N sets of fourth configuration information, that is, delete the first condition in any row other than the second row. The terminal can adjust the first condition in M ​​sets of fourth configuration information to the second condition in a specific set of fourth configuration information, that is, adjust the first condition in the second row of Table 1 to CLTM event 1. The first condition in other fourth configuration information can be deleted while keeping the second condition unchanged, as shown in Table 2.

[0262] Table 2

[0263] In some embodiments, after the serving cell of the terminal becomes CU 1 Cell 1, the terminal evaluates whether CU 1 Cell 2 satisfies CLTM event 1. If the UE receives Config ID 3 in the Cell Switch Command, the terminal performs mobility management and accesses CU 2 Cell 3. In this case, a specific set of fourth configuration information is the third row of Table 1, and M sets of fourth configuration information are the fourth and fifth rows of Table 1. For example, N sets of fourth configuration information can be other rows besides the fourth and fifth rows. The terminal can delete the first condition in N sets of fourth configuration information, for example, delete the first condition in other rows besides the fourth and fifth rows. The terminal can adjust the first condition in M ​​sets of fourth configuration information to the second condition in a specific set of fourth configuration information, that is, adjust the first condition in the fourth row of Table 1 to CLTM event 2, adjust the first condition in the fifth row of Table 1 to CLTM event 3, delete the first condition in other fourth configuration information, and keep the second condition unchanged, as shown in Table 3.

[0264] Table 3

[0265] In some embodiments, after the serving cell of the terminal becomes CU 2 Cell 3, the terminal evaluates whether CU 2 Cell 4 satisfies CLTM event 2 and whether CU 2 Cell 5 satisfies CLTM event 3. If CU 2 Cell 5 satisfies CLTM event 3, the terminal performs mobility management and accesses CU 2 Cell 5. In this case, a specific set of fourth configuration information is the fifth row of Table 1, and M sets of fourth configuration information are the third and fourth rows of Table 1. For example, N sets of fourth configuration information can be other rows besides the third and fourth rows. The terminal can delete the first condition in N sets of fourth configuration information, that is, delete the first condition in other rows besides the third and fourth rows. The terminal can adjust the first condition in M ​​sets of fourth configuration information to the second condition in a specific set of fourth configuration information, that is, adjust the first condition in the third row of Table 1 to CLTM event 6, adjust the first condition in the fourth row of Table 1 to CLTM event 7, delete the first condition in other fourth configuration information, and keep the second condition unchanged, as shown in Table 4.

[0266] Table 4

[0267] It is understandable that when a terminal adjusts its mobility management mechanism, including by deleting the first condition in N sets of fourth configuration information or adjusting the first condition in M ​​sets of fourth configuration information to the second condition in a specific set of fourth configuration information, the mobility management performed by the terminal can be either the first type of mobility management or the second type of mobility management.

[0268] In step S2107, the second network device 103 sends the second information to the first network device 102.

[0269] In some embodiments, the first network device 102 receives second information sent by the second network device 103.

[0270] In some embodiments, the second information is used to indicate that mobility management performed by the terminal was successful. For example, when a terminal successfully switches from a first network device to a second network device, the second network device may send the second information to the first network device to indicate that the terminal has successfully performed mobility management. Upon determining that the terminal has successfully performed mobility management, the first network device may adjust the mobility management mechanism; for example, it may release the configuration information of the mobility management mechanism configured for the terminal, or it may update the configuration information of the mobility management mechanism configured for the terminal.

[0271] Step S2108: The first network device 102 adjusts the mobility management mechanism.

[0272] In some embodiments, the configuration information of the mobility management mechanism includes at least one set of first configuration information, each set of first configuration information including candidate configurations and conditions. The first network device adjusts the mobility management mechanism for subsequent mobility management of the terminal, including: the first network device deleting the first configuration information; or, the first network device deleting the conditions in the first configuration information. Wherein, the candidate configurations of the first configuration information correspond to candidate cells and / or candidate cell groups.

[0273] In some embodiments, the configuration information of the mobility management mechanism includes at least one set of third configuration information. The first network device adjusts the mobility management mechanism for subsequent mobility management of the terminal, including: the first network device deleting the third configuration information. Each set of third configuration information includes candidate configurations and / or conditions. The candidate configurations of the third configuration information include a third identifier. The third identifier is different from the first identifier. The first identifier corresponds to a target cell and / or a target cell group. The target cell and / or the target cell group is the target cell and / or the target cell group in the mobility management performed by the terminal.

[0274] In some embodiments, the configuration information of the mobility management mechanism includes at least one set of fourth configuration information. Each set of fourth configuration information includes a first candidate configuration, a first condition, a configuration identifier corresponding to a second candidate configuration, and a second condition associated with the configuration identifier. In the same set of fourth configuration information, the first cell corresponding to the first candidate configuration is a candidate cell of the current serving cell, and the second cell corresponding to the second candidate configuration is a candidate cell after the first cell becomes the serving cell. The first condition is used to trigger the currently executed mobility management, and the second condition is used to evaluate whether to trigger subsequent mobility management after the currently executed mobility management is successful.

[0275] In some embodiments, the first network device adjusts the mobility management mechanism for subsequent mobility management performed by the terminal, including: the first network device deleting the first condition from N sets of fourth configuration information; wherein, the N sets of fourth configuration information are fourth configuration information other than M sets of fourth configuration information in at least one set of fourth configuration information, the first cell corresponding to the M sets of fourth configuration information is the second cell corresponding to a specific set of fourth configuration information, the first cell corresponding to the first candidate configuration in the specific set of fourth configuration information is the target cell and / or the target cell group, and the target cell and / or the target cell group is the target cell and / or the target cell group in the mobility management performed by the terminal.

[0276] In some embodiments, the first network device adjusts the first condition in the M groups of fourth configuration information to the second condition in a specific group of fourth configuration information.

[0277] It is understood that although steps S2107 and S2108 are written after step S2106, the execution order is not limited. For example, steps S2106 and S2108 may be performed simultaneously, or step S2108 may be performed before step S2106; this disclosure does not impose any restrictions.

[0278] It is understandable that the method for adjusting mobility configuration of the first network device can refer to the method for adjusting mobility configuration of the terminal mentioned above.

[0279] It is understood that different embodiments of this disclosure may include candidate cells, a first candidate cell, and a second candidate cell. The first candidate cell and the second candidate cell are used to distinguish candidate cells in different configuration information. The candidate cell in the embodiments, which is not explicitly defined as either the first or second candidate cell, can refer to either the first or the second candidate cell.

[0280] It is understood that different embodiments of this disclosure include a first candidate configuration, a second candidate configuration, and a third candidate configuration. The first candidate configuration is further divided into a first candidate configuration indicated by first information, a first candidate configuration included in third configuration information, and a first candidate configuration in fourth configuration information. The second candidate configuration is divided into a second candidate configuration included in first configuration information and a second candidate configuration in fourth configuration information.

[0281] The first candidate configuration indicated by the first information can be any candidate configuration in the configuration information. For example, the configuration information is divided into first configuration information and second configuration information. The candidate configuration in the first configuration information is called the second candidate configuration, and the candidate configuration in the second configuration information is called the third candidate configuration. The candidate configuration indicated by the first information can be any second candidate configuration in the first configuration information or any third candidate configuration in the second configuration information. The first candidate configuration included in the third configuration information refers to the candidate configuration containing the third identifier. The fourth configuration information includes two types of candidate configurations, where the first cell corresponding to the first candidate configuration is a candidate cell of the serving cell, and the second cell corresponding to the second candidate configuration is a candidate cell of the first cell. If the embodiment only describes it as "candidate configuration in the configuration information" or "candidate configuration", it can refer to any one of the above-mentioned first candidate configuration, second candidate configuration, and third candidate configuration.

[0282] It is understood that different embodiments of this disclosure contain conditions, a first condition, and a second condition. The first condition and the second condition are used to distinguish conditions with different functions, as described in the above embodiments, and will not be repeated here. For conditions in the embodiments, i.e., not explicitly defined as a first condition or a second condition, they can refer to either a first candidate cell or a second candidate cell.

[0283] It is understood that "mobility management performed by the terminal" in this disclosure can refer to the currently performed mobility management or the mobility management performed in step S2103. "Subsequent mobility management" in this disclosure can refer to mobility management performed after the currently performed mobility management or mobility management performed after the currently performed mobility management is successful.

[0284] The communication method involved in the embodiments of this disclosure may include at least one of steps S2101 to S2108. For example, steps S2105 and S2106 may be implemented as independent embodiments, but are not limited thereto.

[0285] In some embodiments, steps S2101 to S2104, S2107 and S2108 are optional and may be omitted or replaced in different embodiments.

[0286] In some embodiments, other optional implementations described before or after the specification corresponding to FIG2 may be referred to.

[0287] Figure 3 is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 3, this embodiment of the present disclosure relates to a communication method executed by terminal 101, the method including:

[0288] Step S3101: Obtain the configuration information of the mobility management mechanism.

[0289] The optional implementation of step S3101 can be found in the optional implementation of step S2101 in Figure 2, as well as other related parts in the embodiments involved in Figure 2, which will not be repeated here.

[0290] In some embodiments, terminal 101 receives configuration information of mobility management mechanism sent by first network device 102, but is not limited thereto, and may also receive configuration information of mobility management mechanism sent by other entities.

[0291] In some embodiments, terminal 101 obtains configuration information of the mobility management mechanism defined by the protocol.

[0292] In some embodiments, terminal 101 obtains the configuration information of the mobility management mechanism from the upper layer(s).

[0293] In some embodiments, the terminal 101 processes the information to obtain configuration information for the mobility management mechanism.

[0294] In some embodiments, step S3101 is omitted, and the terminal 101 autonomously implements the functions indicated by the configuration information of the mobility management mechanism, or the above functions are defaulted or set to default.

[0295] Step S3102: Obtain the first information.

[0296] The optional implementation of step S3102 can be found in the optional implementation of step S2102 in Figure 2, as well as other related parts in the embodiments involved in Figure 2, which will not be repeated here.

[0297] In some embodiments, terminal 101 receives first information sent by first network device 102, but is not limited thereto; it may also receive first information sent by other entities.

[0298] In some embodiments, terminal 101 obtains first information as defined by the protocol.

[0299] In some embodiments, terminal 101 obtains first information from upper layer(s).

[0300] In some embodiments, the terminal 101 processes the information to obtain the first information.

[0301] In some embodiments, step S3102 is omitted, and the terminal 101 autonomously implements the function indicated by the first information, or the above function is the default or default.

[0302] Step S3103: Perform mobility management.

[0303] The optional implementation of step S3103 can be found in the optional implementation of step S2103 in Figure 2, as well as other related parts in the embodiments involved in Figure 2, which will not be repeated here.

[0304] Step S3104: Determine that the mobility management to be performed is the second type of mobility management.

[0305] The optional implementation of step S3104 can be found in the optional implementation of step S2104 in Figure 2, as well as other related parts in the embodiments involved in Figure 2, which will not be repeated here.

[0306] Step S3105 confirms that the second type of mobility management has been successfully executed.

[0307] The optional implementation of step S3105 can be found in the optional implementation of step S2105 in Figure 2, as well as other related parts in the embodiments involved in Figure 2, which will not be repeated here.

[0308] Step S3106: Adjust the mobility management mechanism.

[0309] The optional implementation of step S3106 can be found in the optional implementation of step S2106 in Figure 2, as well as other related parts in the embodiments involved in Figure 2, which will not be repeated here.

[0310] Figure 4 is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 4, this embodiment of the present disclosure relates to a communication method executed by a first network device 102, the method comprising:

[0311] Step S4101: Send the configuration information for the mobility management mechanism.

[0312] The optional implementation of step S4101 can be found in the optional implementation of step S2101 in Figure 2, as well as other related parts in the embodiments involved in Figure 2, which will not be repeated here.

[0313] In some embodiments, the first network device 102 sends mobility management mechanism configuration information to the terminal 101, but is not limited thereto; it may send mobility management mechanism configuration information to other entities.

[0314] Step S4102: Send the first message.

[0315] The optional implementation of step S4102 can be found in the optional implementation of step S2102 in Figure 2, as well as other related parts in the embodiments involved in Figure 2, which will not be repeated here.

[0316] In some embodiments, the first network device 102 sends first information to the terminal 101, but is not limited thereto; it may send the first information to other entities.

[0317] Step S4103: Obtain the second information.

[0318] The optional implementation of step S4103 can be found in the optional implementation of step S2107 in Figure 2, as well as other related parts in the embodiments involved in Figure 2, which will not be repeated here.

[0319] In some embodiments, the first network device 102 receives second information sent by the second network device 103, but is not limited thereto, and may also receive second information sent by other entities.

[0320] In some embodiments, the first network device 102 obtains second information as defined by a protocol.

[0321] In some embodiments, the first network device 102 obtains second information from the upper layer(s).

[0322] In some embodiments, the first network device 102 processes the information to obtain the second information.

[0323] In some embodiments, step S4103 is omitted, and the first network device 102 autonomously implements the function indicated by the second information, or the above function is default or default.

[0324] Step S4104: Adjust the mobility management mechanism.

[0325] The optional implementation of step S4104 can be found in the optional implementation of step S2108 in Figure 2, as well as other related parts in the embodiments involved in Figure 2, which will not be repeated here.

[0326] Figure 5 is a schematic diagram illustrating the communication method interaction according to an embodiment of the present disclosure. As shown in Figure 5, the embodiments of the present disclosure relate to a communication method, which includes:

[0327] Step S5101: The terminal performs mobility management.

[0328] Step S5102: The terminal adjusts the mobility management mechanism.

[0329] Step S5103: The first network device adjusts the mobility management mechanism.

[0330] In some embodiments, the above methods may include the methods of the embodiments related to the communication system 100, terminal 101, first network device 102 and second network device 103, which will not be described again here.

[0331] This disclosure provides a communication method as follows:

[0332] In some embodiments: a method for configuring LTM and Conditional LTM (also known as CLTM) to coexist:

[0333] (1): LTM and Conditional LTM are configured using different RRC information elements and do not affect each other. LTM and Conditional LTM correspond to different configuration lists.

[0334] For example: A Conditional LTM configuration corresponds to a separate list. Each element in this list contains a condition-triggered LTM candidate configuration (Conditional LTM-Candidate, CLTM Candidate). The specific content of this CLTM Candidate is the same as that of the LTM candidate configuration (LTM-Candidate). In addition to the content contained in the LTM-Candidate, this Conditional LTM-Candidate also contains the execution conditions of CLTM.

[0335] (2): LTM and Conditional LTM are configured using the same RRC information element. That is to say, existing LTM configuration information can be used to configure Conditional LTM.

[0336] For example, an existing LTM configuration list contains multiple LTM candidate information (LTM-Candidate), including a configuration identifier (ltm-CandidateId), LTM candidate configurations (ltm-CandidateId), Early Sync related configurations, etc. If it is used to configure CLTM, it also needs to include the configuration of execution conditions.

[0337] In some embodiments, if an LTM candidate information contains configuration of execution conditions, it can be triggered by the UE evaluating the relevant execution conditions (CLTM triggering method) and / or by Cell Switch Command MAC CE (LTM triggering method). That is, for LTM candidate configuration information with configured execution conditions, there are the following two cases:

[0338] (1): It is only used to configure Conditional LTM, that is, it can only be triggered by conditions.

[0339] (2): It supports both Conditional LTM and network-triggered LTM, meaning it can be triggered by conditions or Cell Switch Command.

[0340] In some embodiments, the specific use of (1) or (2) depends on the protocol agreement or network configuration. For example, the network may indicate that it is only used for conditional triggering, or both are supported, or indicate that LTM candidate information with execution conditions can also be triggered by the Cell Switch Command.

[0341] In some embodiments, the execution conditions are divided into two parts: CLTM execution conditions and a list of execution conditions for Subsequent CLTM. The CLTM execution conditions are used to evaluate whether to access the candidate cell corresponding to the Conditional LTM-Candidate configuration, i.e., to apply the candidate configurations contained in the corresponding Conditional LTM-Candidate. The list of execution conditions for Subsequent CLTM is used to support the evaluation of conditions corresponding to other CLTM candidate cells after the UE accesses the candidate cell corresponding to its Conditional LTM-Candidate configuration. This list of execution conditions for Subsequent CLTM contains multiple sets of CLTM configuration identifiers and their corresponding Subsequent CLTM execution conditions. When the UE evaluates that the CLTM execution conditions are met, the UE accesses its corresponding LTM candidate cell, applies the relevant candidate configurations, and updates the CLTM conditions in the Conditional LTM-Candidate configuration corresponding to the CLTM configuration identifier in the list of Subsequent CLTM execution conditions.

[0342] In some embodiments, when the UE executes inter-CU LTM, the UE deletes (or removes, releases, etc.) the configuration of Conditional LTM, thereby preventing the UE from evaluating a failed Conditional LTM and triggering mobility, leading to failure. It should be noted that when the UE successfully executes inter-CU LTM, the UE deletes (or removes, releases, etc.) the configuration of Conditional LTM.

[0343] In some embodiments, since the coexistence of intra-CU LTM and inter-CU LTM is currently supported, for the methods in the above embodiments, the UE needs to determine whether the LTM triggered by the network side is inter-CU LTM. Specifically, this can be achieved through any one or more of the following schemes:

[0344] (1): The network side is indicated in Cell Switch Command MAC CE.

[0345] (2): Each LTM configuration corresponds to a Set ID, and the serving cell also corresponds to a Serving Set ID. If the Set ID corresponding to the LTM configuration that is triggered is the same as the set identifier (Serving Set ID) of the current serving cell, that is, it is an intra-CU LTM and the Conditional LTM configuration cannot be deleted. If they are different, it means that the UE is executing inter-CU LTM, that is, the Conditional LTM configuration needs to be deleted.

[0346] In some embodiments, if the set ID of the target LTM configuration (the LTM configuration corresponding to the configuration identifier indicated by the LTM Cell Switch Command MAC CE) is equal to the serving Set ID, the UE retains the Conditional LTM configuration; if the set ID of the target LTM configuration (the LTM configuration corresponding to the configuration identifier indicated by the LTM Cell Switch Command MAC CE) is not equal to the serving Set ID, the UE deletes the Conditional LTM configuration.

[0347] In some embodiments, for the two configuration methods mentioned in the above embodiments, the method for the UE to delete Conditional LTM includes the following methods (the configuration of intra-CU Conditional LTM is deleted).

[0348] (1): The UE directly deletes (or removes, releases or clears) the stored Conditional LTM configuration, that is, deletes the configuration list of Conditional LTM stored by the UE. For example, this method can be applied to the LTM and Conditional LTM coexistence configuration method (1).

[0349] (2): The UE directly deletes (or removes, releases, or clears) the LTM candidate information containing the execution condition in the stored LTM configuration list, that is, deletes the entry used to configure Conditional LTM in the LTM configuration list stored by the UE. For example, this method can be applied to the LTM and Conditional LTM coexistence configuration method (1) and / or to (1) in the LTM and Conditional LTM coexistence configuration method (2).

[0350] (3): The UE directly deletes (or removes, releases or clears) the execution conditions (including the two execution conditions in 0) in the LTM candidate information of the stored LTM configuration list. That is, the UE deletes the execution conditions in the LTM configuration list that can be triggered by the execution conditions, which means that it is restricted to be used only for LTM triggered by the network side. For example, this method can be applied to the LTM and Conditional LTM coexistence configuration method (1) and / or to (2) in the LTM and Conditional LTM coexistence configuration method (2).

[0351] In some embodiments, when a UE voluntarily deletes a Conditional LTM, the network side also needs to perform the corresponding deletion and resource release. The specific solution is as follows:

[0352] After receiving the handover success indication (or LTM Cell Switch success indication) sent by the target CU, the source gNB / CU releases the relevant configuration of Conditional LTM configured for this UE by the source gNB / CU (for LTM and Conditional LTM coexistence configuration method (2), (2) updates the LTM configuration configured for the UE). The source CU can notify the DU corresponding to the Conditional LTM candidate cell to perform resource release or configuration update through the F1 interface.

[0353] In some embodiments, when the UE performs inter-LTM, the UE retains the Conditional LTM configuration configured for the UE by the network side, but only enables Conditional LTM for candidate cells belonging to the same CU as the target candidate cell accessed by the UE, or disables Conditional LTM for candidate cells not belonging to the same CU as the target candidate cell accessed by the UE. In other words, the UE enables Conditional LTM for candidate cells belonging to the same CU as the current serving cell, or disables Conditional LTM for candidate cells not belonging to the same CU as the current serving cell.

[0354] In some embodiments, determining whether the candidate cell of Conditional LTM and the current serving cell belong to the same CU can also be done using the methods described in the above embodiments, such as comparing whether the set ID and the serving set ID are equal.

[0355] Specifically, disabling Conditional LTM for candidate cells by the UE can be achieved through any one or more of the following methods:

[0356] (1): The UE deletes the execution conditions of the CLTM for the candidate cell of Conditional LTM, but retains the execution conditions of its corresponding Subsequent. In this case, the UE cannot evaluate whether the disabled candidate cell to be accessed meets the execution conditions, and therefore cannot trigger the UE to execute the disabled inter-CU Conditional LTM.

[0357] (2): The UE does not evaluate the execution conditions corresponding to the Conditional LTM of the disabled candidate cell.

[0358] (3): Candidate cells of the disabled Conditional LTM cannot be used as Applicable Cells for CLTM evaluation.

[0359] In some embodiments, the UE can enable Conditional LTM for candidate cells by any one or more of the following methods:

[0360] (1): The execution conditions corresponding to the Conditional LTM of the candidate cell to be enabled by the UE evaluation.

[0361] (2): Candidate cells of the enabled Conditional LTM are used as Applicable Cells for CLTM evaluation.

[0362] In some embodiments, this can also be achieved through specific network configurations and special handling of related configurations by the UE. The UE enables Conditional LTM for candidate cells belonging to the same CU as the current serving cell, or disables Conditional LTM for candidate cells not belonging to the same CU as the current serving cell. This eliminates the need for the UE to determine whether to perform inter-CU LTM based on Set ID or network indications. The specific details of the method are as follows:

[0363] For an LTM (first LTM) triggered via Cell Switch Command MAC CE, the execution condition list for the Subsequent CLTM can be configured in the corresponding LTM (first LTM) candidate information. This allows the configuration of execution conditions for other CLTMs (first CLTMs) belonging to the same CU as this LTM (first LTM) once it is triggered. This supports subsequent intra-CU Conditional LTMs.

[0364] In this case, the execution condition list of the Subsequent CLTM (First CLTM) will not include the execution conditions of the Subsequent CLTM (Second CLTM) configuration corresponding to a CLTM (Second CLTM) belonging to a different CU than this LTM (First LTM). Therefore, when the UE executes the LTM (First LTM) and accesses this LTM (First LTM) candidate cell, its inter-CU CLTM (Second CLTM) configuration cannot obtain its corresponding execution conditions. At this time, there are two possible solutions:

[0365] (1): The UE only needs to delete the CLTM execution conditions of the second CLTM ID that are not included in the Subsequent CLTM execution condition list of the first LTM.

[0366] (2): The UE does not evaluate the candidate cell corresponding to the second CLTM ID that is not included in the Subsequent CLTM execution condition list of the first LTM.

[0367] (3): Candidate cells corresponding to the second CLTM ID that are not included in the Subsequent CLTM execution condition list of the first LTM cannot become Applicable Cells for CLTM evaluation, or in other words, candidate cells corresponding to the second CLTM ID included in the Subsequent CLTM execution condition list of the first LTM are Applicable Cells for CLTM evaluation.

[0368] For example, taking Option 1 (the UE only needs to delete the CLTM execution conditions of the second CLTM ID that are not included in the Subsequent CLTM execution condition list of the first LTM) as an example:

[0369] The current serving cell is CU 2 Cell6. The UE performs LTM access to Cell 1, and simultaneously updates the execution conditions of other configurations based on the S-CLTM condition configuration of Cell 1. Since the S-CLTM execution condition configuration of ConfigID1 only applies to the SCLTM condition of Config ID2, the CLTM condition for Config IDs 3 / 4 / 5 needs to be deleted, as shown in Table 2. The UE evaluates CLTM event 1 (serving Cell 1 and Cell 2 are both CU1, which is intra-CU CLTM). The UE receives an indication of Config ID 3 in the Cell Switch Command. The UE performs LTM access to Cell 3, and simultaneously updates the execution conditions of other configurations based on the S-CLTM condition configuration of Cell 3. Since the S-CLTM execution condition configuration of ConfigID3 only applies to the SCLTM condition of Config IDs 4 and 5, the CLTM condition for Config ID 2 needs to be deleted, as shown in Table 3. The UE evaluates CLTM events 2 and 3 (serving Cell 3 and Cells 4 and 5 are both CU2, which is intra-CU CLTM). The UE evaluates that Cell 5 satisfies CLTM event 3. The UE performs LTM access to Cell 5, and at the same time updates the execution conditions of other configurations based on the S-CLTM condition configuration of Cell 5. Since the S-CLTM execution condition configuration of ConfigID 5 only applies to the SCLTM conditions of Config ID 3 and 4, the CLTM conditions of Config ID 1, 2 and 5 need to be deleted, as shown in Table 4.

[0370] This disclosure also provides an apparatus for implementing any of the above methods. For example, an apparatus is provided that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Alternatively, another apparatus is provided that includes units or modules for implementing the steps performed by a network device (e.g., an access network device, a core network functional node, a core network device, etc.) in any of the above methods.

[0371] It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a Central Processing Unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC). The functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD). Taking a field-programmable gate array (FPGA) as an example, it can include a large number of logic gates. The connection relationships between the logic gates are configured through configuration files, thereby achieving the functionality of some or all of the units or modules. All units or modules of the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining parts implemented through hardware circuits.

[0372] In this embodiment, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute capabilities, such as a Central Processing Unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits. The logical relationships of the aforementioned hardware circuits are fixed or reconfigurable. For example, the processor is a hardware circuit implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. Furthermore, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a Neural Network Processing Unit (NPU), a Tensor Processing Unit (TPU), or a Deep Learning Processing Unit (DPU).

[0373] Figure 6a is a schematic diagram of the terminal structure proposed in an embodiment of this disclosure. As shown in Figure 6a, the terminal 6100 may include at least one of a processing module 6101 and a transceiver module 6102. The processing module is used to perform mobility management and adjust the mobility management mechanism; wherein the mobility management mechanism includes a first mobility management mechanism and a second mobility management mechanism, the first mobility management mechanism supporting a first type of mobility management, and the second mobility management mechanism supporting both the first and second types of mobility management.

[0374] In some embodiments, the terminal further includes a transceiver module 6102, configured to receive first information sent by a first network device, the first information being used to indicate a first candidate configuration in the configuration information of the mobility management mechanism, the first candidate configuration corresponding to a target cell and / or a target cell group in mobility management.

[0375] In some embodiments, mobility management is a type 2 mobility management.

[0376] In some embodiments, the first information is further used to indicate that mobility management is of the second type; and / or, the first candidate configuration includes a first identifier, which is different from the second identifier corresponding to the serving cell.

[0377] In some embodiments, the configuration information includes at least one set of first configuration information, each set of first configuration information including a second candidate configuration and conditions. The terminal adjusts the mobility management mechanism, including: the terminal deleting the first configuration information; or, the terminal deleting the conditions; wherein the second candidate configuration corresponds to the first candidate cell and / or the first candidate cell group.

[0378] In some embodiments, the configuration information further includes at least one set of second configuration information, each set of second configuration information including a third candidate configuration; the first configuration information and the second configuration information are configured in different lists, the first configuration information corresponds to a first mobility management mechanism, and the second configuration information corresponds to a second mobility management mechanism; or, the first configuration information and the second configuration information are configured in the same list, the first configuration information corresponds to the first mobility management mechanism and / or the second mobility management mechanism, and the second configuration information corresponds to the second mobility management mechanism; the third candidate configuration corresponds to a second candidate cell and / or a second candidate cell group; the second candidate configuration includes the first candidate configuration, or the third candidate configuration includes the first candidate configuration.

[0379] In some embodiments, mobility management is of the first type.

[0380] In some embodiments, the first information is further used to indicate that mobility management is of the first type; and / or, the first candidate configuration includes a first identifier, which is the same as the second identifier corresponding to the serving cell.

[0381] In some embodiments, the transceiver module 6102 adjusts the mobility management mechanism in the following manner: at least one set of third configuration information is included in the configuration information for disabling the mobility management mechanism, and each set of third configuration information includes a first candidate configuration and conditions. The first candidate configuration includes a third identifier, which is different from the first identifier. The first identifier corresponds to the target cell and / or target cell group in mobility management.

[0382] In some embodiments, the transceiver module 6102 disables at least one set of third configuration information in the mobility management mechanism configuration information in at least one of the following ways: deleting the third configuration information; not evaluating the conditions; not using the cell corresponding to the first candidate configuration as a candidate cell to be evaluated.

[0383] In some embodiments, the configuration information of the mobility management mechanism includes at least one set of fourth configuration information. Each set of fourth configuration information includes a first candidate configuration, a first condition, a configuration identifier corresponding to the second candidate configuration, and a second condition. In the same set of fourth configuration information, the first cell corresponding to the first candidate configuration is a candidate cell of the current serving cell, and the second cell corresponding to the second candidate configuration is a candidate cell of the first cell. The candidate cell of the first cell indicates the candidate cell after the first cell becomes the serving cell. The first condition is used to trigger mobility management, and the second condition is used to evaluate whether to trigger subsequent mobility management after successful mobility management. The second condition is associated with the configuration identifier.

[0384] In some embodiments, the transceiver module 6102 adjusts the mobility management mechanism in at least one of the following ways: deleting the first condition in N sets of fourth configuration information; not evaluating the first condition in N sets of fourth configuration information; not using the first cell corresponding to N sets of fourth configuration information as a candidate cell to be evaluated; wherein, at least one set of fourth configuration information consists of N sets of fourth configuration information and M sets of fourth configuration information, the first cell corresponding to M sets of fourth configuration information is the second cell corresponding to a specific set of fourth configuration information, the first cell corresponding to the specific set of fourth configuration information is the target cell and / or target cell group in mobility management, and M and N are positive integers.

[0385] In some embodiments, the transceiver module 6102 adjusts the mobility management mechanism in at least one of the following ways: adjusting the first condition in the M groups of fourth configuration information to the second condition in a specific group of fourth configuration information; evaluating the first condition in the M groups of fourth configuration information; and using the first cell corresponding to the M groups of fourth configuration information as a candidate cell to be evaluated; wherein, the first cell corresponding to the specific group of fourth configuration information is the target cell and / or target cell group in mobility management, the first cell corresponding to the M groups of fourth configuration information is the second cell corresponding to the specific group of fourth configuration information, and M is a positive integer.

[0386] In some embodiments, the first type of mobility management is intra-node mobility management; and / or, the second type of mobility management is inter-node mobility management.

[0387] Figure 6b is a schematic diagram of the structure of a first network device according to an embodiment of this disclosure. As shown in Figure 6b, the network device 6200 may include at least one of a processing module 6201 and a transceiver module 6202. The processing module 6201 is used to adjust a mobility management mechanism; the mobility management mechanism includes a first mobility management mechanism and a second mobility management mechanism, the first mobility management mechanism supporting a first type of mobility management, and the second mobility management mechanism supporting both the first and second types of mobility management.

[0388] In some embodiments, network device 6200 may also be referred to as first network device 6200, and this disclosure does not limit it.

[0389] In some embodiments, the first network device further includes a transceiver module 6202 for receiving second information sent by the second network device, the second information being used to indicate that the mobility management performed by the terminal was successful.

[0390] In some embodiments, the transceiver module 6202 is further configured to: send first information to the terminal, the first information being used to indicate a first candidate configuration in the configuration information of the mobility management mechanism, the first candidate configuration corresponding to the target cell and / or target cell group in the mobility management performed by the terminal.

[0391] In some embodiments, the first information is further used to indicate that the mobility management performed by the terminal is a second type of mobility management; and / or, the first candidate configuration includes a first identifier, which is different from the second identifier corresponding to the serving cell.

[0392] In some embodiments, the configuration information includes at least one set of first configuration information, each set of first configuration information including a second candidate configuration and conditions. The first network device adjusts the mobility management mechanism, including: the first network device deleting the first configuration information; or, the first network device deleting the conditions. The second candidate configuration corresponds to a first candidate cell and / or a group of first candidate cells.

[0393] In some embodiments, the configuration information further includes at least one set of second configuration information, each set of second configuration information including a third candidate configuration; the first configuration information and the second configuration information are configured in different lists, the first configuration information corresponds to a first mobility management mechanism, and the second configuration information corresponds to a second mobility management mechanism; or, the first configuration information and the second configuration information are configured in the same list, the first configuration information corresponds to the first mobility management mechanism and / or the second mobility management mechanism, and the second configuration information corresponds to the second mobility management mechanism; the third candidate configuration corresponds to a second candidate cell and / or a second candidate cell group; the second candidate configuration includes the first candidate configuration, or the third candidate configuration includes the first candidate configuration.

[0394] In some embodiments, the first information is further used to indicate that mobility management is of the first type; and / or, the first candidate configuration includes a first identifier, which is the same as the second identifier corresponding to the serving cell.

[0395] In some embodiments, the processing module 6201 adjusts the mobility management mechanism in the following manner: the first network device deletes at least one set of third configuration information from the configuration information of the mobility management mechanism, each set of third configuration information includes a first candidate configuration and conditions, the first candidate configuration includes a third identifier, the third identifier is different from the first identifier, and the first identifier corresponds to the target cell and / or target cell group in the mobility management performed by the terminal.

[0396] In some embodiments, the configuration information of the mobility management mechanism includes at least one set of fourth configuration information. Each set of fourth configuration information includes a first candidate configuration, a first condition, a configuration identifier corresponding to the second candidate configuration, and a second condition. In the same set of fourth configuration information, the first cell corresponding to the first candidate configuration is a candidate cell of the current serving cell, and the second cell corresponding to the second candidate configuration is a candidate cell of the first cell. The candidate cell of the first cell represents the candidate cell after the first cell becomes the serving cell. The first condition is used to trigger the mobility management performed by the terminal, and the second condition is used to evaluate whether to trigger subsequent mobility management after the mobility management performed by the terminal is successful.

[0397] In some embodiments, the processing module 6201 adjusts the mobility management mechanism in the following manner: deleting the first condition in N sets of fourth configuration information; wherein, at least one set of fourth configuration information consists of N sets of fourth configuration information and M sets of fourth configuration information, the first cell corresponding to the M sets of fourth configuration information is the second cell corresponding to a specific set of fourth configuration information, the first cell corresponding to the specific set of fourth configuration information is the target cell and / or target cell group in the mobility management performed by the terminal, and M and N are positive integers.

[0398] In some embodiments, the processing module 6201 adjusts the mobility management mechanism in the following manner: the first condition in the M groups of fourth configuration information is adjusted to the second condition in a specific group of fourth configuration information; wherein, the first cell corresponding to the specific group of fourth configuration information is the target cell and / or target cell group in mobility management, the first cell corresponding to the M groups of fourth configuration information is the second cell corresponding to the specific group of fourth configuration information, and M is a positive integer.

[0399] In some embodiments, the first type of mobility management is intra-node mobility management; and / or, the second type of mobility management is inter-node mobility management.

[0400] Figure 7a is a schematic diagram of a communication device according to an embodiment of this disclosure. The communication device 7100 can be a network device, a terminal, or a chip, chip system, or processor that supports the network device in implementing any of the above methods; alternatively, the network device can be an access network device, a core network device, etc. Optionally, the terminal can be a user equipment, etc. The communication device 7100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0401] As shown in Figure 7a, the communication device 7100 includes one or more processors 7101. The processor 7101 can be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control the communication device, execute programs, and process program data. The communication device 7100 is used to execute any of the above methods. Optionally, the communication device can be a base station, a baseband chip, a terminal device, a terminal device chip, a DU (Distributed Unit), or a CU (Computer Integrated Circuit), etc.

[0402] In some embodiments, the communication device 7100 further includes one or more memories 7102 for storing instructions. Optionally, all or part of the memories 7102 may also be located outside the communication device 7100.

[0403] In some embodiments, the communication device 7100 further includes one or more transceivers 7103. When the communication device 7100 includes one or more transceivers 7103, the transceivers 7103 perform communication steps S2101 such as sending and / or receiving in the above method, and the processor 7101 performs other steps.

[0404] In some embodiments, a transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, etc., may be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., may be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., may be used interchangeably.

[0405] In some embodiments, the communication device 7100 may include one or more interface circuits 7104. Optionally, the interface circuit 7104 is connected to the memory 7102, and the interface circuit 7104 can be used to receive signals from the memory 7102 or other devices, and can be used to send signals to the memory 7102 or other devices. For example, the interface circuit 7104 can read instructions stored in the memory 7102 and send the instructions to the processor 7101.

[0406] The communication device 7100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 7100 described in this disclosure is not limited thereto, and the structure of the communication device 7100 may not be limited by FIG. 7a. The communication device may be a standalone device or a part of a larger device. For example, the communication device may be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally, the IC collection may also include storage components for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0407] Figure 7b is a schematic diagram of the chip structure proposed in an embodiment of this disclosure. For cases where the communication device 7100 can be a chip or a chip system, please refer to the schematic diagram of the chip 7200 shown in Figure 7b, but it is not limited thereto.

[0408] Chip 7200 includes one or more processors 7201, which are used to perform any of the above methods.

[0409] In some embodiments, chip 7200 further includes one or more interface circuits 7202. Optionally, the interface circuit 7202 is connected to memory 7203, and the interface circuit 7202 can be used to receive signals from memory 7203 or other devices, and the interface circuit 7202 can be used to send signals to memory 7203 or other devices. For example, the interface circuit 7202 can read instructions stored in memory 7203 and send the instructions to processor 7201.

[0410] In some embodiments, the interface circuit 7202 performs communication steps S2101 such as sending and / or receiving in the above method, and the processor 7201 performs other steps.

[0411] In some embodiments, the terms interface circuit, interface, transceiver pin, transceiver, etc., can be used interchangeably.

[0412] In some embodiments, chip 7200 further includes one or more memories 7203 for storing instructions. Optionally, all or part of the memories 7203 may be located outside of chip 7200.

[0413] This disclosure also proposes a storage medium storing instructions that, when executed on the communication device 7100, cause the communication device 7100 to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.

[0414] This disclosure also provides a program product that, when executed by the communication device 7100, causes the communication device 7100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0415] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.

Claims

1. A communication method, characterized in that, The method includes: The terminal performs mobility management; The terminal adjusts the mobility management mechanism; The mobility management mechanism includes a first mobility management mechanism and a second mobility management mechanism. The first mobility management mechanism supports a first type of mobility management, and the second mobility management mechanism supports both the first and second types of mobility management.

2. The method according to claim 1, characterized in that, The method further includes: The terminal receives first information sent by the first network device. The first information is used to indicate a first candidate configuration in the configuration information of the mobility management mechanism. The first candidate configuration corresponds to the target cell and / or target cell group in the mobility management.

3. The method according to claim 2, characterized in that, The mobility management mentioned above is the second type of mobility management.

4. The method according to claim 3, characterized in that, The first information is also used to indicate that the mobility management is of the second type; and / or, The first candidate configuration includes a first identifier, which is different from the second identifier corresponding to the serving cell.

5. The method according to any one of claims 3-4, characterized in that, The configuration information includes at least one set of first configuration information, each set of first configuration information including a second candidate configuration and conditions; the terminal adjusts the mobility management mechanism, including: The terminal deletes the first configuration information; or... The terminal deletes the condition; The second candidate configuration corresponds to the first candidate cell and / or the first candidate cell group.

6. The method according to claim 5, characterized in that, The configuration information also includes at least one set of second configuration information, and each set of second configuration information includes a third candidate configuration. The first configuration information and the second configuration information are configured in different lists. The first configuration information corresponds to the first mobility management mechanism, and the second configuration information corresponds to the second mobility management mechanism. Alternatively, the first configuration information and the second configuration information are configured in the same list, the first configuration information corresponds to the first mobility management mechanism and / or the second mobility management mechanism, and the second configuration information corresponds to the second mobility management mechanism; The third candidate configuration corresponds to the second candidate cell and / or the second candidate cell group; The second candidate configuration includes the first candidate configuration, or the third candidate configuration includes the first candidate configuration.

7. The method according to claim 2, characterized in that, The mobility management mentioned above is the first type of mobility management.

8. The method according to claim 7, characterized in that, The first information is also used to indicate that the mobility management is the first type of mobility management; and / or, The first candidate configuration includes a first identifier, which is the same as the second identifier corresponding to the serving cell.

9. The method according to claim 1, characterized in that, The terminal adjusts the mobility management mechanism, including: The terminal disables at least one set of third configuration information in the configuration information of the mobility management mechanism. Each set of third configuration information includes a first candidate configuration and a condition. The first candidate configuration includes a third identifier, which is different from the first identifier. The first identifier corresponds to the target cell and / or target cell group in the mobility management.

10. The method according to claim 9, characterized in that, The configuration information for disabling the mobility management mechanism in the terminal includes at least one set of third configuration information, including at least one of the following: The terminal deletes the third configuration information; The terminal does not evaluate the conditions; The terminal does not consider the cell corresponding to the first candidate configuration as a candidate cell to be evaluated.

11. The method according to claim 1, characterized in that, The mobility management mechanism configuration information includes at least one set of fourth configuration information, each set of fourth configuration information including a first candidate configuration, a first condition, a configuration identifier corresponding to the second candidate configuration, and a second condition; In the same group of fourth configuration information, the first cell corresponding to the first candidate configuration is the candidate cell of the current serving cell, the second cell corresponding to the second candidate configuration is the candidate cell of the first cell, and the candidate cell of the first cell is the candidate cell after the first cell becomes the serving cell; The first condition is used to trigger the mobility management, and the second condition is used to evaluate whether to trigger subsequent mobility management after the mobility management is successful. The second condition is associated with the configuration identifier.

12. The method according to claim 11, characterized in that, The terminal adjustment mobility management mechanism includes at least one of the following: The terminal deletes the first condition in the N groups of fourth configuration information; The terminal does not evaluate the first condition in the fourth configuration information of group N; The terminal does not consider the first cell corresponding to the N sets of fourth configuration information as a candidate cell to be evaluated; Wherein, the at least one set of fourth configuration information consists of the N sets of fourth configuration information and the M sets of fourth configuration information, the first cell corresponding to the M sets of fourth configuration information is the second cell corresponding to a specific set of fourth configuration information, the first cell corresponding to the specific set of fourth configuration information is the target cell and / or target cell group in the mobility management, and M and N are positive integers.

13. The method according to claim 11, characterized in that, The terminal adjustment mobility management mechanism includes at least one of the following: The terminal adjusts the first condition in the fourth configuration information of group M to the second condition in a specific group of fourth configuration information; The terminal evaluates the first condition in the fourth configuration information of group M; The terminal will use the first cell corresponding to the fourth configuration information of the M group as the candidate cell to be evaluated; Wherein, the first cell corresponding to the specific set of fourth configuration information is the target cell and / or target cell group in mobility management, the first cell corresponding to the M sets of fourth configuration information is the second cell corresponding to the specific set of fourth configuration information, and M is a positive integer.

14. The method according to any one of claims 1-13, characterized in that, The first type of mobility management is intra-node mobility management; and / or, The second type of mobility management is inter-node mobility management.

15. A communication method, characterized in that, The method includes: The first network device adjusts its mobility management mechanism; The mobility management mechanism includes a first mobility management mechanism and a second mobility management mechanism. The first mobility management mechanism supports a first type of mobility management, and the second mobility management mechanism supports both the first and second types of mobility management.

16. The method according to claim 15, characterized in that, The method further includes: The first network device receives second information sent by the second network device, the second information being used to indicate that the mobility management performed by the terminal was successful.

17. The method according to any one of claims 15-16, characterized in that, The method further includes: The first network device sends first information to the terminal. The first information is used to indicate a first candidate configuration in the configuration information of the mobility management mechanism. The first candidate configuration corresponds to the target cell and / or target cell group in the mobility management performed by the terminal.

18. The method according to claim 17, characterized in that, The first information is also used to indicate that the mobility management performed by the terminal is of the second type; and / or, The first candidate configuration includes a first identifier, which is different from the second identifier corresponding to the serving cell.

19. The method according to claim 18, characterized in that, The configuration information includes at least one set of first configuration information, each set of first configuration information including a second candidate configuration and conditions, and the first network device adjusting the mobility management mechanism includes: The first network device deletes the first configuration information; or, The first network device deletes the condition; The second candidate configuration corresponds to the first candidate cell and / or the first candidate cell group.

20. The method according to claim 19, characterized in that, The configuration information also includes at least one set of second configuration information, and each set of second configuration information includes a third candidate configuration. The first configuration information and the second configuration information are configured in different lists. The first configuration information corresponds to the first mobility management mechanism, and the second configuration information corresponds to the second mobility management mechanism. Alternatively, the first configuration information and the second configuration information are configured in the same list, the first configuration information corresponds to the first mobility management mechanism and / or the second mobility management mechanism, and the second configuration information corresponds to the second mobility management mechanism; The third candidate configuration corresponds to the second candidate cell and / or the second candidate cell group; The second candidate configuration includes the first candidate configuration, or the third candidate configuration includes the first candidate configuration.

21. The method according to claim 17, characterized in that, The first information is also used to indicate that the mobility management is the first type of mobility management; and / or, The first candidate configuration includes a first identifier, which is the same as the second identifier corresponding to the serving cell.

22. The method according to any one of claims 15-16, characterized in that, The first network device adjusts the mobility management mechanism, including: The first network device deletes at least one set of third configuration information from the configuration information of the mobility management mechanism. Each set of third configuration information includes a first candidate configuration and a condition. The first candidate configuration includes a third identifier, which is different from the first identifier. The first identifier corresponds to the target cell and / or target cell group in the mobility management performed by the terminal.

23. The method according to any one of claims 15-16, characterized in that, The mobility management mechanism configuration information includes at least one set of fourth configuration information, each set of fourth configuration information including a first candidate configuration, a first condition, a configuration identifier corresponding to the second candidate configuration, and a second condition; In the same group of fourth configuration information, the first cell corresponding to the first candidate configuration is the candidate cell of the current serving cell, the second cell corresponding to the second candidate configuration is the candidate cell of the first cell, and the candidate cell of the first cell is the candidate cell after the first cell becomes the serving cell; The first condition is used to trigger mobility management performed by the terminal, and the second condition is used to evaluate whether to trigger subsequent mobility management after the mobility management performed by the terminal is successful.

24. The method according to claim 23, characterized in that, The first network device adjusts the mobility management mechanism, including: The first network device deletes the first condition from N sets of fourth configuration information; Wherein, the at least one set of fourth configuration information consists of the N sets of fourth configuration information and the M sets of fourth configuration information, the first cell corresponding to the M sets of fourth configuration information is the second cell corresponding to a specific set of fourth configuration information, the first cell corresponding to the specific set of fourth configuration information is the target cell and / or target cell group in the mobility management performed by the terminal, and M and N are positive integers.

25. The method according to claim 23, characterized in that, The first network device adjusts the mobility management mechanism, including: The first network device adjusts the first condition in the fourth configuration information of group M to the second condition in a specific group of fourth configuration information; Wherein, the first cell corresponding to the specific set of fourth configuration information is the target cell and / or target cell group in mobility management, the first cell corresponding to the M sets of fourth configuration information is the second cell corresponding to the specific set of fourth configuration information, and M is a positive integer.

26. The method according to any one of claims 15-25, characterized in that, The first type of mobility management is intra-node mobility management; and / or, The second type of mobility management is inter-node mobility management.

27. A communication method, characterized in that, The method includes: The terminal performs mobility management; The terminal adjusts the mobility management mechanism; The first network device adjusts the mobility management mechanism; The mobility management mechanism includes a first mobility management mechanism and a second mobility management mechanism. The first mobility management mechanism supports a first type of mobility management, and the second mobility management mechanism supports both the first and second types of mobility management.

28. A terminal, characterized in that, include: The processing module is used to perform mobility management; Adjust the mobility management mechanism; The mobility management mechanism includes a first mobility management mechanism and a second mobility management mechanism. The first mobility management mechanism supports a first type of mobility management, and the second mobility management mechanism supports both the first and second types of mobility management.

29. A network device, characterized in that, include: The processing module is used to adjust the mobility management mechanism; The mobility management mechanism includes a first mobility management mechanism and a second mobility management mechanism. The first mobility management mechanism supports a first type of mobility management, and the second mobility management mechanism supports both the first and second types of mobility management.

30. A communication device, characterized in that, include: One or more processors; The processor is used to execute the communication method according to any one of claims 1-14.

31. A communication device, characterized in that, include: One or more processors; The processor is used to execute the communication method according to any one of claims 15-26.

32. A communication system, characterized in that, include: A terminal and a first network device, wherein the terminal is configured to implement the communication method of any one of claims 1-14, and the first network device is configured to implement the communication method of any one of claims 15-26.

33. A storage medium, characterized in that, include: The storage medium stores instructions that, when executed on a communication device, cause the communication device to perform the communication method as described in any one of claims 1-14 or 15-26.

34. A program product, characterized in that, include: A computer program, when executed by a communication device, causes the communication device to perform the communication method as described in any one of claims 1-14 or 15-26.

Images