Communication method, communication device, storage medium, and program product

Abstract

The present disclosure relates to the technical field of communications, and relates to a communication method, a communication device, a storage medium, and a program product. The method comprises: receiving mobility configuration information sent by a first network node; and determining a configuration type corresponding to the mobility configuration information. The first network node can send the mobility configuration information to a terminal, so that the terminal determines the configuration type corresponding to the mobility configuration information, that is, the terminal can determine whether LTM candidate information in an LTM configuration configured by an MCG is used for MCG LTM or SCG LTM, thereby supporting corresponding functions such as failure recovery, measurement reporting, and mobility execution condition evaluation.

Description

Communication methods, communication equipment, storage media and software products Technical Field

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

[0002] In the field of communications, the network side can provide a terminal with one or more candidate information, one of which may include one or more cells (or cell groups). The network side can then control the terminal to change between multiple candidate information through Layer 1 (L1) or Layer 2 (L2) signaling. This control signaling can be called cell change control signaling. This process can also be called Layer 1 / L2-triggered Mobility (LTM) process. Summary of the Invention

[0003] This disclosure provides a communication method, communication device, storage medium, and program product that can be used in the field of communication technology to help a terminal determine whether LTM candidate information in the LTM configuration of the Master Cell Group (MCG) is used for MCG LTM or Secondary Cell Group (SCG) LTM, thereby supporting corresponding failure recovery, measurement reporting, and mobility execution condition assessment functions.

[0004] According to a first aspect of the present disclosure, a communication method is proposed, executed by a terminal, comprising: receiving mobility configuration information sent by a first network node; and determining the configuration type corresponding to the mobility configuration information.

[0005] According to a second aspect of the present disclosure, a communication method is proposed, executed by a first network node, comprising: sending mobility configuration information to a terminal for the terminal to determine the configuration type corresponding to the mobility configuration information.

[0006] According to a third aspect of the present disclosure, a communication device is provided that can implement the communication methods described in the first and second aspects of the present disclosure.

[0007] According to a fourth aspect of the present disclosure, a computer storage medium is provided, wherein the computer storage medium stores computer-executable instructions; after being executed by a processor, the computer-executable instructions are able to implement the communication method described in any one of the first and second aspects of the present disclosure.

[0008] According to a fifth aspect of the present disclosure, a program product is provided, including at least one of a program and instructions, wherein when the program and instructions are executed by a communication device, they implement the communication method described in any one of the first and second aspects of the present disclosure.

[0009] According to the communication method proposed in the embodiments of this disclosure, the first network node can send mobility configuration information to the terminal so that the terminal can determine the configuration type corresponding to the mobility configuration information. That is, the terminal can determine whether the LTM candidate information in the LTM configuration of the MCG configuration is used for MCG LTM or SCG LTM, thereby supporting corresponding failure recovery, measurement reporting and mobility execution condition evaluation and other functions. Attached Figure Description

[0010] 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.

[0011] Figure 1 is a schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure;

[0012] Figure 2 is an interactive schematic diagram of a communication method provided according to an embodiment of the present disclosure;

[0013] Figure 3 is an interactive schematic diagram of another communication method provided according to an embodiment of the present disclosure;

[0014] Figure 4 is a schematic diagram of a dual-connection scenario provided according to an embodiment of the present disclosure;

[0015] Figure 5A is a schematic diagram of the structure of a terminal provided according to an embodiment of the present disclosure;

[0016] Figure 5B is a schematic diagram of the structure of a first network node according to an embodiment of the present disclosure;

[0017] Figure 6A is a schematic diagram of the structure of a communication device according to an embodiment of the present disclosure;

[0018] Figure 6B is a schematic diagram of the chip structure proposed in an embodiment of this disclosure. Detailed Implementation

[0019] This disclosure provides a communication method, communication device, storage medium, and program product.

[0020] In a first aspect, embodiments of this disclosure provide a communication method executed by a terminal, comprising: receiving mobility configuration information sent by a first network node; and determining the configuration type corresponding to the mobility configuration information.

[0021] In the above embodiments, the first network node can send mobility configuration information to the terminal so that the terminal can determine the configuration type corresponding to the mobility configuration information.

[0022] In conjunction with the embodiments of the first aspect, in some embodiments, determining the configuration type corresponding to the mobility configuration information includes: determining the configuration type corresponding to one or more mobility candidate information in the mobility configuration information, wherein the configuration type includes a first configuration type and / or a second configuration type; the first configuration type is used to identify that the mobility candidate information is used for primary cell group (MCG) mobility; the second configuration type is used to identify that the mobility candidate information is used for secondary cell group (SCG) mobility.

[0023] In the above embodiments, the configuration type corresponding to the mobility configuration information can be determined so that the terminal can perform corresponding failure recovery, measurement reporting, and mobility execution condition evaluation, etc.

[0024] In conjunction with the embodiments of the first aspect, in some embodiments, determining the configuration type corresponding to the mobility configuration information includes: determining whether the MCG configuration and / or SCG configuration in the candidate target configuration contained in one or more mobility candidate information in the mobility configuration information includes synchronization reconfiguration information, and obtaining a first result; and determining the configuration type corresponding to the mobility configuration information based on the first result.

[0025] In the above embodiments, the configuration type corresponding to the mobility configuration information can be determined so that the terminal can perform corresponding failure recovery, measurement reporting, and mobility execution condition evaluation, etc.

[0026] In conjunction with the embodiments of the first aspect, in some embodiments, determining the configuration type corresponding to the mobility configuration information based on the first result includes at least one of the following: if the first result indicates that the MCG configuration includes synchronization reconfiguration information, determining the configuration type as a first configuration type; if the first result indicates that the SCG configuration includes synchronization reconfiguration information, determining the configuration type as a second configuration type; if the first result indicates that both the MCG configuration and the SCG configuration include synchronization reconfiguration information, determining the configuration type as a first configuration type; if the first result indicates that the MCG configuration does not include synchronization reconfiguration information, determining the configuration type as a second configuration type.

[0027] In the above embodiments, the configuration type corresponding to the mobility configuration information can be determined so that the terminal can perform corresponding failure recovery, measurement reporting, and mobility execution condition evaluation, etc.

[0028] In conjunction with the embodiments of the first aspect, in some embodiments, determining the configuration type corresponding to mobility configuration information includes: determining a first physical cell identifier (PCI) indicated by a mobility candidate cell identifier contained in one or more mobility candidate information in the mobility configuration information; and determining the configuration type corresponding to the mobility configuration information based on the first PCI.

[0029] In the above embodiments, the configuration type corresponding to the mobility configuration information can be determined so that the terminal can perform corresponding failure recovery, measurement reporting, and mobility execution condition evaluation, etc.

[0030] In conjunction with the embodiments of the first aspect, in some embodiments, determining the configuration type corresponding to the mobility configuration information based on the first PCI includes at least one of the following: if the first PCI is the same as the second PCI indicated by the MCG configuration in the candidate target configuration included in the mobility candidate information, the configuration type is determined to be a first configuration type; if the first PCI is the same as the third PCI indicated by the SCG configuration in the candidate target configuration included in the mobility candidate information, the configuration type is determined to be a second configuration type; if the first PCI is not the same as the second PCI indicated by the MCG configuration in the candidate target configuration included in the mobility candidate information, the configuration type is determined to be a second configuration type.

[0031] In the above embodiments, the configuration type corresponding to the mobility configuration information can be determined so that the terminal can perform corresponding failure recovery, measurement reporting, and mobility execution condition evaluation, etc.

[0032] In conjunction with the embodiments of the first aspect, in some embodiments, determining the configuration type corresponding to the mobility configuration information includes: determining the configuration type corresponding to the mobility configuration information based on indication information associated with one or more mobility candidate information in the mobility configuration information.

[0033] In the above embodiments, the configuration type corresponding to the mobility configuration information can be determined so that the terminal can perform corresponding failure recovery, measurement reporting, and mobility execution condition evaluation, etc.

[0034] In conjunction with the embodiments of the first aspect, in some embodiments, determining the configuration type corresponding to the mobility configuration information based on indication information associated with one or more mobility candidate information in the mobility configuration information includes: determining the configuration type as a first configuration type when the indication information indicates a first value; and determining the configuration type as a second configuration type when the indication information indicates a second value.

[0035] In the above embodiments, the configuration type corresponding to the mobility configuration information can be determined so that the terminal can perform corresponding failure recovery, measurement reporting, and mobility execution condition evaluation, etc.

[0036] In conjunction with the embodiments of the first aspect, in some embodiments, the indication information associated with the mobility candidate information includes at least one of the following: indication information contained in the mobility candidate information; and indication information associated with the mobility candidate information identifier.

[0037] In the above embodiments, indication information associated with mobility candidate information can be determined so that the configuration type corresponding to mobility configuration information can be determined based on the indication information associated with one or more mobility candidate information, so that the terminal can perform corresponding failure recovery, measurement reporting and mobility execution condition evaluation, etc.

[0038] In conjunction with the embodiments of the first aspect, in some embodiments the method further includes: performing a first operation based on the configuration type.

[0039] In the above embodiments, after determining the configuration type, the terminal can perform corresponding failure recovery, measurement reporting, and mobility execution condition assessment, etc.

[0040] In conjunction with the embodiments of the first aspect, in some embodiments, the first operation is fast failure recovery based on MCG mobility configuration, wherein performing the first operation based on the configuration type includes: determining that the cell selected by the terminal for failure recovery or reconstruction is a candidate cell corresponding to the mobility candidate information of the first configuration type; and performing a mobility process based on the mobility candidate information corresponding to the cell for failure recovery or reconstruction.

[0041] In the above embodiments, after determining the configuration type, the terminal can perform corresponding failure recovery, measurement reporting, and mobility execution condition assessment, etc.

[0042] In conjunction with the embodiments of the first aspect, in some embodiments, the first operation is an evaluation of a measurement event or execution condition, wherein performing the first operation based on a configuration type includes at least one of the following: if the configuration type is determined to be a first configuration type, then the cell in the measurement event or execution condition is determined to be the primary cell PCell, and an evaluation is performed based on the measurement results of the current serving PCell and the corresponding candidate PCell; if the configuration type is determined to be a second configuration type, then the cell in the measurement event or execution condition is determined to be the primary and secondary cell PSCells, and an evaluation is performed based on the measurement results of the current serving PSCell and the corresponding candidate PSCells.

[0043] In the above embodiments, after determining the configuration type, the terminal can perform corresponding failure recovery, measurement reporting, and mobility execution condition assessment, etc.

[0044] In conjunction with the embodiments of the first aspect, in some embodiments, the first operation is the reporting of measurement events or execution conditions, wherein, based on the configuration type, performing the first operation includes at least one of the following: if the configuration type is determined to be a first configuration type, then the cell in the measurement event or execution condition is determined to be the primary cell PCell, and the measurement result of the current serving PCell is carried in the reported measurement report; if the configuration type is determined to be a second configuration type, then the cell in the measurement event or execution condition is determined to be the primary and secondary cell PSCell, and the measurement result of the current serving PSCell is carried in the reported measurement report.

[0045] In the above embodiments, after determining the configuration type, the terminal can perform corresponding failure recovery, measurement reporting, and mobility execution condition assessment, etc.

[0046] Secondly, embodiments of this disclosure provide a communication method, which is executed by a first network node, including: sending mobility configuration information to a terminal for the terminal to determine the configuration type corresponding to the mobility configuration information.

[0047] In conjunction with the embodiments of the second aspect, in some embodiments, the configuration type corresponding to the mobility configuration information is the configuration type corresponding to one or more mobility candidate information in the mobility configuration information, and the configuration type includes a first configuration type and / or a second configuration type; the first configuration type is used to identify that the mobility candidate information is used for primary cell group (MCG) mobility; the second configuration type is used to identify that the mobility candidate information is used for secondary cell group (SCG) mobility.

[0048] In conjunction with the embodiments of the second aspect, in some embodiments, the configuration type corresponding to the mobility configuration information is determined based on a first result of whether the MCG configuration and / or SCG configuration of one or more mobility candidate information in the mobility configuration information includes synchronization reconfiguration information.

[0049] In conjunction with the embodiments of the second aspect, in some embodiments, when the first result indicates that the MCG configuration includes synchronization reconfiguration information, the configuration type is a first configuration type; when the first result indicates that the SCG configuration includes synchronization reconfiguration information, the configuration type is a second configuration type; when the first result indicates that both the MCG configuration and the SCG configuration include synchronization reconfiguration information, the configuration type is a first configuration type; and when the first result indicates that the MCG configuration does not include synchronization reconfiguration information, the configuration type is a second configuration type.

[0050] In conjunction with the embodiments of the second aspect, in some embodiments, the configuration type corresponding to the mobility configuration information is determined based on the first physical cell identifier (PCI) indicated by the mobility candidate cell identifier contained in one or more mobility candidate information in the mobility configuration information.

[0051] In conjunction with the embodiments of the second aspect, in some embodiments, when the first PCI is the same as the second PCI indicated by the MCG configuration in the candidate target configuration included in the mobility candidate information, the configuration type is a first configuration type; when the first PCI is the same as the third PCI indicated by the SCG configuration in the candidate target configuration included in the mobility candidate information, the configuration type is a second configuration type; when the first PCI is not the same as the second PCI indicated by the MCG configuration in the candidate target configuration included in the mobility candidate information, the configuration type is a second configuration type.

[0052] In conjunction with the embodiments of the second aspect, in some embodiments, the configuration type corresponding to the mobility configuration information is determined based on indication information associated with one or more mobility candidate information in the mobility configuration information.

[0053] In conjunction with the embodiments of the second aspect, in some embodiments, when the indication information indicates a first value, the configuration type is a first configuration type; when the indication information indicates a second value, the configuration type is a second configuration type.

[0054] In conjunction with the embodiments of the second aspect, in some embodiments, the indication information associated with the mobility candidate information includes at least one of the following: indication information contained in the mobility candidate information; and indication information associated with the mobility candidate information identifier.

[0055] In conjunction with the embodiments of the second aspect, in some embodiments, the configuration type is used for the terminal to perform the first operation.

[0056] In conjunction with the embodiments of the second aspect, in some embodiments, the first operation is fast failure recovery based on MCG mobility configuration; the cell selected by the terminal for failure recovery or reconstruction is the candidate cell corresponding to the mobility candidate information of the first configuration type.

[0057] In conjunction with the embodiments of the second aspect, in some embodiments, the first operation is the evaluation of a measurement event or execution condition; when the configuration type is the first configuration type, the cell in the measurement event or execution condition is the primary cell PCell, and the terminal evaluates based on the measurement results of the current serving PCell and the corresponding candidate PCell; when the configuration type is the second configuration type, the cell in the measurement event or execution condition is the primary and secondary cell PSCell, and the terminal evaluates based on the measurement results of the current serving PSCell and the corresponding candidate PSCell.

[0058] In conjunction with the embodiments of the second aspect, in some embodiments, the first operation is the reporting of measurement events or execution conditions; when the configuration type is the first configuration type, the cell in the measurement event or execution condition is the primary cell PCell, and the measurement report reported by the terminal carries the measurement result of the currently serving PCell; when the configuration type is the second configuration type, the cell in the measurement event or execution condition is the primary and secondary cell PSCell, and the measurement report reported by the terminal carries the measurement result of the currently serving PSCell.

[0059] Thirdly, embodiments of this disclosure provide a communication device for performing the methods described in any one of the first and second aspects of embodiments of this disclosure.

[0060] Fourthly, embodiments of this disclosure provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the method described in any one of the first or second aspects of embodiments of this disclosure.

[0061] Fifthly, embodiments of this disclosure provide a program product, including at least one of a program and instructions, wherein when the program or instructions are executed by a communication device, they implement the steps of the method described in any one of the first and second aspects of embodiments of this disclosure.

[0062] It is understood that the aforementioned communication equipment, storage medium, and program product are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0063] This disclosure provides a communication method, a communication device, a communication system, a storage medium, and a program product. In some embodiments, terms such as communication method and information processing method can be used interchangeably, as can terms such as network device, information processing apparatus, and communication apparatus, and terms such as information processing system and communication system.

[0064] 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. In all embodiments of this disclosure, unless otherwise specified or logically conflicting, the terminology and / or descriptions between the embodiments are consistent and can be mutually referenced. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0065] 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.

[0066] In this embodiment of the disclosure, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the aforementioned," "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.

[0067] In the embodiments disclosed herein, "multiple" refers to two or more.

[0068] In some embodiments, the terms "at least one of A or B, at least one of A and B", "one or more", "a plurality of", "multiple" and the like can be used interchangeably.

[0069] 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 whether there is a branch B); in some embodiments, B (execute B regardless of whether there is a branch A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, both A and B are executed. The same applies when there are more branches such as A, B, C, etc.

[0070] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execute A regardless of whether a branch B exists); in some embodiments, B (execute B regardless of whether a branch A exists); 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, and C.

[0071] 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.

[0072] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0073] In some embodiments, terms such as "time / frequency" and "time-frequency domain" refer to the time domain and / or frequency domain.

[0074] In some embodiments, terms such as “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “when…”, “if…”, etc. can be used interchangeably. These descriptions all refer to the device making a corresponding action under certain objective circumstances. They do not necessarily limit the time, nor do they require the device to make a judgment action when implementing it, nor do they mean that there must be other limitations.

[0075] 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”.

[0076] In some embodiments, devices, etc., may be interpreted as physical or virtual, and their names are not limited to those described in the embodiments. Terms such as “device,” “equipment,” “circuit,” “network element,” “network function,” “network device,” “function,” “node,” “unit,” “section,” “system,” “network,” “chip,” “chip system,” “entity,” and “subject” are interchangeable.

[0077] In some embodiments, "network" can be interpreted as devices included in a network (e.g., access network devices, core network devices, etc.).

[0078] In some embodiments, the terms "access network device (AN device)," "radio access network device (RAN device)," "base station (BS)," "radio base station," "fixed station," "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," and "bandwidth part (BWP)" can be used interchangeably.

[0079] In some embodiments, the terms "terminal", "terminal device", "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", and "client" can be used interchangeably.

[0080] In some embodiments, access network devices, core network devices, or network devices can be replaced with terminals. For example, embodiments of this disclosure can also be applied to structures where communication between access network devices, core network devices, or network devices and terminals is replaced with communication between multiple terminals (e.g., device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, the structure can also be configured such that the terminal has all or part of the functions of the access network device. Furthermore, terms such as "uplink" and "downlink" can be replaced with terms corresponding to communication between terminals (e.g., "sidelink"). For example, uplink channel, downlink channel, etc., can be replaced with sidelink channel, uplink link, downlink link, etc., can be replaced with sidelink link.

[0081] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, core network device, or network device may also be configured to have all or some of the functions of the terminal.

[0082] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0083] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0084] In some embodiments, "acquire," "get," "obtain," "receive," "transmit," "bidirectional transmission," and "send and / or receive" can be used interchangeably and can be interpreted as receiving from other entities, acquiring from protocols, acquiring from higher layers, obtaining through self-processing, or autonomous implementation. Protocols include, for example, at least one of the 3GPP protocol, Wi-Fi protocol, and audio and / or video protocols.

[0085] 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.

[0086] This disclosure proposes a communication method, communication device, communication system, storage medium, and program product that enables a first network node to send mobility configuration information to a terminal, so that the terminal can determine the configuration type corresponding to the mobility configuration information. That is, the terminal can determine whether the LTM candidate information in the LTM configuration of the MCG configuration is used for MCG LTM or SCG LTM, thereby supporting corresponding failure recovery, measurement reporting, and mobility execution condition evaluation functions.

[0087] The method proposed in this disclosure is applicable to various communication systems, including but not limited to 4G, 5G, 5G-advance and subsequent communication technologies (such as 6G).

[0088] Figure 1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure. As shown in Figure 1, the communication system 100 may include a terminal 101 and a first network node 102.

[0089] In some embodiments, the method disclosed herein can be applied to a communication system. Optionally, the first network node can be a network device. Further, the first network node can be a Master Cell Group (MCG). The first network node can send mobility configuration information to the terminal, and the terminal can determine the configuration type corresponding to the mobility configuration information.

[0090] In some embodiments, the terminal 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.

[0091] 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 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, but is not limited thereto.

[0092] 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 the following: Evolved Packet Core (EPC), 5G Core Network (5GCN), and Next Generation Core (NGC).

[0093] 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.

[0094] 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.

[0095] 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.

[0096] The following embodiments of this disclosure can be applied to the communication system 100 shown in FIG1, or to some of the main bodies, but are not limited thereto. The main bodies shown in FIG1 are illustrative. The communication system may include all or some of the main bodies in FIG1, or may include other main bodies outside of FIG1. ​​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.

[0097] 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), 5G new radio (NR), 6th generation mobile communication system (6G), 6G 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), and IEEE 802.16 (WiMAX, a registered trademark), 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. Furthermore, multiple systems can be combined (e.g., a combination of LTE or LTE-A with 5G).

[0098] In 5G systems, a dual connectivity (DC) architecture can be adopted, which includes two cell groups: the master cell group (MCG), corresponding to the network-side master node (MN); and the secondary cell group (SCG), corresponding to the network-side secondary node (SN).

[0099] The MCG consists of one primary cell (or cell group) (PCell) and one or more secondary cells (or cell groups) (SCell). The SCG consists of one primary secondary cell (or cell group) (PSCell) and one or more SCells. PCell and PSCell can be collectively referred to as special cells (or cell groups) (SpCell).

[0100] In the MCG, there is a cell used to initiate initial access; this cell is called the PCell. As the name suggests, the PCell is the most "primary" cell in the MCG. The PCell in the MCG and the SCell in the MCG are combined through Carrier Aggregation (CA). In the MCG, the primary cell is the PCell, and the secondary cell is the SCell; in the SCG, the primary and secondary cells are the PSCell, and the secondary cell is the SCell. Because much signaling is only transmitted on the PCell and PSCell, for ease of description, the protocol also defines a concept called sPCell; PCell and PSCell are collectively referred to as sPCell.

[0101] The 5G Radio Access Network (NG-RAN) supports 5G New Radio Dual Connectivity (NR-NR DC, NR-DC), where the UE connects to one gNB acting as the MN and another gNB acting as the SN. The primary gNB connects to the 5GC via the NG interface, and the two gNBs are connected via the Xn interface. The secondary gNB can also connect to the 5GC via the NG-U interface. Furthermore, the NR-DC can also be used for the UE to access a single gNB, simultaneously acting as both the MN and SN, and simultaneously configuring both the MCG and SCG.

[0102] In 5G systems, the network side can provide the terminal with one or more candidate configurations, where each candidate configuration can include one or more "cells (or cell groups)". The network side can subsequently control the terminal to change among these candidate configurations (e.g., changing the working cell (or cell group) from "cell (or cell group)-1" to "cell (or cell group)-2") via L1 (e.g., Downlink Control Information (DCI)) or L2 (Media Access Control-Control Element (MAC CE)) signaling. This control signaling can be called "cell change control signaling". This process can also be called Layer 1 / L2-triggered Mobility (LTM) process, i.e., LTM handover process.

[0103] LTM refers to the process where a base station receives an L1 measurement report from a terminal. Based on the received L1 measurement results, the base station can send a Cell Switch Command to the terminal via MAC CE to change the terminal's serving cell. The base station pre-sends multiple LTM candidate messages to the terminal via Radio Resource Control (RRC) signaling. When LTM is triggered, the base station indicates the LTM candidate message corresponding to the target cell to be accessed by sending a Cell Switch Command MAC CE. The terminal then applies the corresponding LTM candidate target configuration to complete the serving cell change. The network side's sending of a MAC CE to trigger the Cell Switch based on L1 measurement results enables it to respond to rapid channel changes and trigger handover promptly.

[0104] During LTM (Lead Time Management), early uplink and downlink synchronization for candidate cells is supported, enabling RACH-less LTM Cell Switching. Currently, two methods are supported for obtaining the TA (Target Acquisition) values ​​of LTM candidate cells in advance: early TA acquisition and UE-based TA measurement. Performing early uplink and downlink synchronization for candidate cells to achieve RACH-less LTM Cell Switching effectively reduces data interruptions during handover.

[0105] LTM supports Subsequent LTM, meaning that the terminal does not release the LTM configuration after each LTM cell handover. This allows the terminal to continue performing subsequent cell handovers after mobility is established, without RRC reconfiguration or reset. Supporting Subsequent LTM effectively reduces signaling overhead.

[0106] Currently, both intra-CU and inter-DU LTM have been standardized; further LTM enhancements are planned, including support for inter-CU LTM, condition-triggered LTM, and event-triggered L1 measurement reporting. This will further improve LTM performance and broaden its applicability.

[0107] In NR-DC, the UE can receive two independent LTM configuration messages (ltm-Config): the ltm-Config associated with the MCG, which is included in the RRC Reconfiguration message received via SRB1; and the ltm-Config associated with the SCG, which is included in the RRC Reconfiguration message received via SRB3, or embedded in the RRC Reconfiguration message received via SRB1.

[0108] If the UE receives two independent ltm-Configs: the UE maintains two independent ltm-Configs; the UE maintains two independent VarLTM-ServingCellNoResetIDs, one for each ltm-Config; the UE maintains two independent VarLTM-ServingCellUE-MeasuredTA-IDs, one for each ltm-Config; unless otherwise expressly specified, the UE independently executes all protocol-related procedures for each ltm-Config and its associated VarLTM-ServingCellNoResetID and VarLTM-ServingCellUE-MeasuredTA-ID.

[0109] LTM in DC scenarios supports the following mobility:

[0110] 1. Inter-SN SCG LTM (Inter-SN SCG LTM) for SNs without SN changes;

[0111] 2. SCG change / addition to MCG LTM within / between MN;

[0112] 3. SCG-modified MCG LTM within / inter-MN;

[0113] 4. SCG release of intra-MN / inter-MN MCG LTM (intra / inter-MN MCG LTM).

[0114] Currently, the following scenarios support the coexistence of SCG LTM and MCG LTM: Intra-CU MCG LTM + Inter-CU MCG LTM; Intra-CU SCG LTM + Inter-CU SCG LTM.

[0115] Currently, intra-CU MCG LTM and intra-CU SCG LTM are supported. Terminals can simultaneously receive and maintain two independent LTM configurations (ltm-Config): one for the MCG and one for the SCG. Furthermore, inter-gNB MCG LTM and inter-SN SCG LTM are also supported. For SN-initiated inter-SN SCG LTM, unlike intra-SN SCG LTM (which is configured via SN RRC messages), inter-SN SCG LTM is configured via MN RRC messages. Therefore, in Rel-19, SN-initiated inter-SN SCG LTM also needs to be configured via MN RRC messages.

[0116] Furthermore, the coexistence of intra-MCG LTM and inter-SN SCG LTM is currently supported. Therefore, the LTM configuration in the MN configuration includes candidate information for both MCG LTM and SCG LTM. In this scenario, the terminal cannot determine which candidate information corresponds to MCG LTM and which corresponds to SCG LTM. In other words, the terminal needs to know whether a particular candidate in the LTM candidate add / mod list (LTM-candidatetoaddmodlist) received from the MCG is for MCG LTM or SCG LTM. Currently, fast failure recovery based on MCG LTM is supported; therefore, the terminal needs to know whether the LTM candidate information corresponds to MCG LTM or SCG LTM.

[0117] Furthermore, in the DC scenario, both SCG-configured MCG LTM (MCG LTM with SCG Configuration) and MCG-configured SCG LTM (SCG LTM with MCG Configuration) are supported. This means that each candidate target configuration corresponding to each MCG LTM / SCG LTM candidate in the MCG-configured LTM configuration can simultaneously be both MCG and SCG configuration information. Therefore, how the terminal determines whether the LTM candidate information in the MCG-configured LTM configuration is used for MCG LTM or SCG LTM is the problem this solution needs to solve.

[0118] Therefore, in order to solve the above-mentioned technical problems, this disclosure proposes a communication method that can determine whether the LTM candidate information in the LTM configuration of the MCG configuration is used for MCG LTM or SCG LTM, thereby supporting corresponding failure recovery, measurement reporting and mobility execution condition assessment and other functions.

[0119] The following is a schematic diagram of a communication method provided in this disclosure. Embodiments of this disclosure relate to a communication method that can be executed by a communication system, such as the communication system 100 shown in Figure 1. The communication system includes a terminal 101 and a first network node 102. The communication method may include the following specific methods:

[0120] Figure 2 is one of the interactive schematic diagrams of the communication method provided in this embodiment of the present disclosure. As shown in Figure 2, the method includes the following steps:

[0121] Step 2101: The first network node sends mobility configuration information to the terminal.

[0122] In some embodiments, the first network node can be an MN, and further, the first network node can be the MCG corresponding to the MN. The mobility configuration information can be Layer 1 / Layer 2 triggered mobility LTM configuration information, that is, the MCG can send LTM configuration to the terminal. Optionally, the configuration type includes a first configuration type and / or a second configuration type; the first configuration type is used to identify mobility candidate information for primary cell group MCG mobility; the second configuration type is used to identify mobility candidate information for secondary cell group SCG mobility. The mobility candidate information can be LTM candidate information, that is, in the case of the first configuration type, the LTM candidate information corresponds to MCG LTM, and in the case of the second configuration type, the LTM candidate information corresponds to SCG LTM.

[0123] In some embodiments, the names of information, etc., are not limited to the names described in the embodiments. Terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0124] In some embodiments, the terms "codebook," "codeword," and "precoding matrix" can be used interchangeably. For example, a codebook can be a collection of one or more codewords / precoding matrices.

[0125] Optionally, the LTM configuration can include both MCG LTM and SCG LTM configurations. The first network node can configure both MCG LTM and SCG LTM using the same RRC information element (IE), such as using ltm-Config-r18. This configuration can be done within the LTM configuration.

[0126] Optionally, the mobility configuration information may simultaneously include candidate identifiers (LTM-CandidateId) for both MCG LTM configuration and SCG LTM configuration, wherein MCG LTM and SCG LTM cannot use the same candidate LTM identifier (LTM-CandidateId). ltm-Config-r18 can be used to configure at least one of the following: LTM configuration; LTM candidate information (LTM-Candidate-r18); candidate target configuration (ltm-CandidateConfig-r18), wherein the candidate target configuration corresponds to an RRC reconfiguration message, which may simultaneously include MCG and SCG configurations. The LTM candidate cell identifier (ltm-CandidatePCI-r18) included in the LTM candidate information can be represented as the first physical cell identifier (physCellId, PCI).

[0127] In some embodiments, an LTM configuration contains multiple LTM candidate information, and the LTM configuration can have multiple configuration types simultaneously. For example, some LTM candidate information is MCG LTM, and another part is SCG LTM. An LTM candidate information contains a candidate target configuration, and the LTM candidate information has only one configuration type.

[0128] Optionally, the RRC information element can configure the MCG and SCG. The RRC information element can also contain special cell configuration, which can include synchronous reconfiguration (reconfigurationWithSync). The synchronous reconfiguration configures a general special cell configuration (spCellConfigCommon). The general special cell configuration contains the physical cell identifier (PCI), which corresponds to the PCI in the MCG configuration or the PCI in the SCG configuration.

[0129] In some embodiments, "acquire," "get," "obtain," "receive," "transmit," "bidirectional transmission," and "send and / or receive" can be used interchangeably and can be interpreted as receiving from other entities, acquiring from protocols, acquiring from higher layers, obtaining through self-processing, or autonomous implementation. Protocols include, for example, at least one of the 3GPP protocol, Wi-Fi protocol, and audio and / or video protocols.

[0130] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transmit,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.

[0131] Step 2102: The terminal determines the configuration type corresponding to the mobility configuration information.

[0132] In some embodiments, determining the configuration type corresponding to mobility configuration information includes: determining the configuration type corresponding to one or more mobility candidate information in the mobility configuration information.

[0133] For example, it can be determined whether the corresponding candidate target configuration in the mobility candidate information includes a candidate PCell or a candidate PS Cell.

[0134] For example, the mobility includes any one or more network-configured mobility operations;

[0135] For example, the network side pre-configures the corresponding mobility operations for candidate cells (or cell groups), including mobility triggered by PHY, MAC CE, RRC, and / or mobility triggered by measurement events (L1 / L2 events, and / or RRM events).

[0136] For example, the mobility can be any one or more of the following: L1 / L2 Triggered Mobility (LTM), Conditional LTM, L3 Switching, CHO, CPA, CPC, etc.

[0137] For example, an LTM may include a network-triggered LTM and / or a condition-triggered conditional LTM (such as ConditionalLTM, CLTM).

[0138] For example, if the mobility is LTM, then the configuration type corresponding to one or more LTM candidate information in the mobility configuration information is determined. In other words, it can be determined whether the cell included in the corresponding candidate target configuration in the LTM candidate information is a candidate PCell or a candidate PSCell.

[0139] In some embodiments, determining the configuration type corresponding to mobility configuration information includes: determining whether the MCG configuration and / or SCG configuration in the candidate target configuration contained in one or more mobility candidate information in the mobility configuration information includes synchronization reconfiguration information, and obtaining a first result; and determining the configuration type corresponding to the mobility configuration information based on the first result.

[0140] In some embodiments, determining the configuration type corresponding to the LTM configuration information based on the first result includes at least one of the following: if the first result indicates that the MCG configuration includes synchronization reconfiguration information, determining the configuration type as a first configuration type; if the first result indicates that the SCG configuration includes synchronization reconfiguration information, determining the configuration type as a second configuration type; if the first result indicates that both the MCG configuration and the SCG configuration include synchronization reconfiguration information, determining the configuration type as a first configuration type; if the first result indicates that the MCG configuration does not include synchronization reconfiguration information, determining the configuration type as a second configuration type.

[0141] In other words, the terminal can determine the configuration type corresponding to the mobility configuration information based on the MCG configuration and / or SCG configuration in one or more mobility candidate information contained in the mobility configuration information sent by the first network node. Further, the configuration type can be determined based on whether the MCG configuration and / or SCG configuration includes synchronization reconfiguration information. Optionally, when the MCG configuration includes synchronization reconfiguration (reconfigurationWithSync) information, the configuration type can be determined as the first configuration type, i.e., the mobility candidate information is used for primary cell group MCG mobility, and the LTM candidate information corresponds to MCG LTM. Optionally, when the SCG configuration includes synchronization reconfiguration information, the configuration type is determined as the second configuration type, i.e., the mobility candidate information is used for secondary cell group SCG mobility, and the LTM candidate information corresponds to SCG LTM.

[0142] Alternatively, the terminal may first determine whether the MCG configuration contains synchronization reconfiguration information, and then determine whether the SCG configuration contains synchronization reconfiguration information. In this scenario, if both the MCG configuration and the SCG configuration contain synchronization reconfiguration information, the configuration type is determined to be the first configuration type, that is, the mobility candidate information is used for the primary cell group MCG mobility, and the LTM candidate information corresponds to the MCG LTM. If the MCG configuration does not contain synchronization reconfiguration information, the configuration type is determined to be the second configuration type, that is, the mobility candidate information is used for the secondary cell group SCG mobility, and the LTM candidate information corresponds to the SCG LTM.

[0143] That is, for any LTM candidate information (or any LTM candidate identifier) ​​in the LTM configuration currently maintained by the terminal, if the MCG contained in the RRC reconfiguration message corresponding to the LTM candidate configuration (or the LTM candidate identifier associated with this LTM candidate information) contains synchronous reconfiguration, then this LTM candidate (LTM candidate identifier) ​​corresponds to MCG LTM. Otherwise, if the SCG contained in the RRC reconfiguration message corresponding to the LTM candidate configuration (or the LTM candidate identifier associated with this LTM candidate information) contains synchronous reconfiguration, then this LTM candidate (LTM candidate identifier) ​​corresponds to SCG LTM.

[0144] In other words, for each LTM candidate identifier in the LTM configuration of the current terminal configuration: if the RRC reconfiguration in the LTM candidate configuration associated with the LTM candidate identifier includes the primary cell group and includes synchronization reconfiguration, then the candidate LTM configuration associated with the LTM candidate identifier is considered to be MCG LTM; otherwise, if the RRC reconfiguration in the LTM candidate configuration associated with the LTM candidate identifier includes the secondary cell group and includes synchronization reconfiguration, then the candidate LTM configuration associated with the LTM candidate identifier is considered to be SCG LTM.

[0145] In some embodiments, determining the configuration type corresponding to mobility configuration information includes: determining a first physical cell identifier (PCI) indicated by a mobility candidate cell identifier contained in one or more mobility candidate information in the mobility configuration information; and determining the configuration type corresponding to the mobility configuration information based on the first PCI.

[0146] In some embodiments, determining the configuration type corresponding to the LTM configuration information based on the first PCI includes at least one of the following: if the first PCI is the same as the second PCI indicated by the MCG configuration in the candidate target configuration included in the mobility candidate information, the configuration type is determined to be a first configuration type; if the first PCI is the same as the third PCI indicated by the SCG configuration in the candidate target configuration included in the mobility candidate information, the configuration type is determined to be a second configuration type; if the first PCI is not the same as the second PCI indicated by the MCG configuration in the candidate target configuration included in the mobility candidate information, the configuration type is determined to be a second configuration type.

[0147] In other words, the terminal can determine the configuration type corresponding to the LTM configuration information based on the first Physical Cell Identifier (PCI) indicated by the Mobility Candidate Cell Identifier contained in the Mobility Candidate Information. Optionally, if the first PCI is the same as the second PCI indicated by the MCG configuration contained in the candidate target configuration corresponding to the LTM candidate information, then the LTM candidate information corresponds to MCG LTM; if the first PCI is the same as the third PCI indicated by the SCG configuration contained in the candidate target configuration corresponding to the LTM candidate information, then the LTM candidate information corresponds to SCG LTM.

[0148] In some embodiments, the terminal can determine whether the first PCI and the second PCI are equal. If they are, the LTM candidate information corresponds to MCG LTM; otherwise, the LTM candidate information corresponds to SCG LTM. Optionally, the terminal can first determine whether the first PCI and the second PCI are equal, and then determine whether the first PCI and the third PCI are equal.

[0149] That is, for any LTM candidate information candidate LTM in the LTM configuration currently maintained by the terminal (or for any LTM candidate identifier in LTM-Config-r18), if the LTM candidate cell identifier in this LTM candidate information (or the LTM candidate identifier associated with this LTM candidate identifier) ​​is (or equal to) the PCI indicated in the Common Serving Cell Configuration (ServingCellConfigCommon) included in the MCG of the RRC reconfiguration corresponding to the LTM candidate configuration, then this candidate LTM (LTM candidate identifier) ​​corresponds to the MCG LTM. Otherwise, if the LTM candidate cell identifier in this LTM candidate information (or the LTM candidate identifier associated with this LTM candidate identifier) ​​is (or equal to) the PCI indicated in the Common Serving Cell Configuration (ServingCellConfigCommon) included in the RRC reconfiguration corresponding to the LTM candidate configuration, then this candidate LTM (LTM candidate identifier) ​​corresponds to the MCG LTM.

[0150] In other words, for each LTM candidate identifier in the LTM configuration of the current terminal configuration: if the LTM candidate cell identifier contained in the LTM candidate information matches the value indicated by the MCG configuration in the candidate target configuration contained in the mobility candidate information, then the candidate LTM configuration associated with the LTM candidate identifier is considered to be MCG LTM; otherwise, if the LTM candidate cell identifier contained in the LTM candidate information matches the value indicated by the SCG configuration in the candidate target configuration contained in the mobility candidate information, then the candidate LTM configuration associated with the LTM candidate identifier is considered to be SCG LTM.

[0151] In some embodiments, determining the configuration type corresponding to mobility configuration information includes: determining the configuration type corresponding to mobility configuration information based on indication information associated with one or more mobility candidate information in the mobility configuration information.

[0152] In some embodiments, determining the configuration type corresponding to mobility configuration information based on indication information associated with one or more mobility candidate information in mobility configuration information includes: determining the configuration type as a first configuration type when the indication information indicates a first value; and determining the configuration type as a second configuration type when the indication information indicates a second value.

[0153] In some embodiments, the indication information associated with mobility candidate information includes at least one of the following: indication information contained in the mobility candidate information; and indication information associated with the mobility candidate information identifier.

[0154] In other words, indication information can be introduced to indicate whether the LTM candidate information corresponds to MCG LTM or SCG LTM. The terminal can determine whether the LTM candidate information corresponds to MCG LTM or SCG LTM based on the indication information contained in the mobility candidate information. Alternatively, indication information can be added to the mobility configuration information, and the indication information is associated with the mobility candidate information identifier. That is, the terminal can determine the configuration type corresponding to the mobility configuration information based on the indication information associated with one or more mobility candidate information identifiers in the mobility configuration information.

[0155] Optionally, in a scenario where the terminal determines whether the LTM candidate information corresponds to MCG LTM or SCG LTM based on the indication information contained in the mobility candidate information, if the indication information indicates a first value, the configuration type is determined to be the first configuration type, and the LTM candidate information / LTM candidate identifier corresponding to the indication information corresponds to MCG LTM; if the indication information indicates a second value, the configuration type is determined to be the second configuration type, and the LTM candidate information / LTM candidate identifier corresponding to the indication information corresponds to SCG LTM.

[0156] In some embodiments, determining the configuration type corresponding to the mobility configuration information based on indication information associated with one or more candidate information in the mobility configuration information includes: determining the configuration type as a first configuration type when the indication information indicates an LTM candidate identifier for MCG LTM; and determining the configuration type as a second configuration type when the indication information indicates an LTM candidate identifier for SCG LTM.

[0157] In some embodiments, the method further includes: adding, deleting, or modifying the candidate identifier list stored in the terminal according to the LTM candidate identifier for MCG LTM and / or LTM candidate identifier for SCG LTM indicated by the indication information.

[0158] Optionally, in scenarios where the terminal determines the configuration type corresponding to the mobility configuration information based on indication information associated with one or more mobility candidate information identifiers in the mobility configuration information, the indication information may indicate mobility candidate information identifiers for MCG LTM and / or SCG LTM. The indication information may include a list of mobility candidate information identifiers for MCG LTM, and / or include a list of mobility candidate information identifiers for MCG LTM. The list can be updated by adding / removing the list, or the list can be configured directly. When a mobility candidate information identifier is in the list of mobility candidate information identifiers for MCG LTM, that mobility candidate information identifier corresponds to MCG LTM; when a mobility candidate information identifier is in the list of mobility candidate information identifiers for SCG LTM, that mobility candidate information identifier corresponds to SCG LTM.

[0159] Step 2103: The terminal performs the first operation based on the configuration type.

[0160] In some embodiments, after determining the configuration type corresponding to the mobility configuration information, the terminal may perform a first operation based on the configuration type. The first operation may be a fast failure recovery based on the MCG mobility configuration, or the first operation may be an evaluation of measurement events or execution conditions, or the first operation may be a reporting of measurement events or execution conditions.

[0161] In some embodiments, the first operation is fast failure recovery based on MCG mobility configuration, wherein performing the first operation based on the configuration type includes: determining that the cell selected by the terminal for failure recovery or reconstruction is a candidate cell corresponding to mobility candidate information of the first configuration type; and performing a mobility process based on the mobility candidate information corresponding to the cell for failure recovery or reconstruction.

[0162] In other words, when a terminal fails, a cell handover can be performed. When the cell selected by the terminal for failure recovery or reconstruction is a candidate cell corresponding to the mobility candidate information of the first configuration type, and the cell corresponding to the LTM candidate information in the LTM configuration information is a candidate pcell, then during the LTM cell handover, the source cell needs to be switched to one of these candidate pcells as a target pcell. Therefore, the handover needs to be performed according to the configuration information corresponding to the candidate pcell. That is, when a terminal fails and performs cell selection, after selecting a cell for radio link recovery, if the selected cell is one of the LTM candidate cells and contains synchronization reconfiguration in the primary cell group within the LTM candidate information element (IE) in the LTM configuration associated with the MCG, then the terminal performs the LTM cell handover process for the selected LTM candidate cell based on the mobility candidate information corresponding to the selected LTM candidate cell.

[0163] In some embodiments, the first operation is an evaluation of a measurement event or execution condition, wherein performing the first operation based on a configuration type includes at least one of the following: if the configuration type is determined to be a first configuration type, then the cell in the measurement event or execution condition is determined to be the primary cell PCell, and an evaluation is performed based on the measurement results of the current serving PCell and the corresponding candidate PCell; if the configuration type is determined to be a second configuration type, then the cell in the measurement event or execution condition is determined to be the primary and secondary cell PSCell, and an evaluation is performed based on the measurement results of the current serving PSCell and the corresponding candidate PSCell.

[0164] In other words, the terminal can determine the cell type to be evaluated for the measurement event or execution condition based on the configuration type of the mobility configuration information. If the configuration type is the first type, the LTM candidate information corresponds to MCG LTM, and the cell in the measurement event or execution condition is determined to be the primary cell PCell. In this case, the evaluation can be based on the measurement results of the current serving PCell and the corresponding candidate cell (candidate PCell). If the configuration type is the second configuration type, the LTM candidate information corresponds to SCG LTM, and the cell in the measurement event or execution condition is determined to be the primary and secondary cell PSCell. In this case, the evaluation can be based on the measurement results of the current serving PSCell and the corresponding candidate cell (candidate PSCell).

[0165] In some embodiments, the first operation is the reporting of a measurement event or execution condition, wherein, based on the configuration type, the first operation includes at least one of the following: if the configuration type is determined to be a first configuration type, then the cell of the measurement event or execution condition is determined to be the primary cell PCell, and the measurement result of the current serving PCell is carried in the reported measurement report; if the configuration type is determined to be a second configuration type, then the cell of the measurement event or execution condition is determined to be the primary and secondary cell PSCell, and the measurement result of the current serving PSCell is carried in the reported measurement report.

[0166] In other words, the terminal can determine the cell type to be reported for measurement events or execution conditions based on the configuration type of mobility configuration information. If the configuration type is the first configuration type, the LTM candidate information corresponds to MCG LTM, and the measurement report includes the measurement results of the serving cell in MCG. If the configuration type is the second configuration type, the LTM candidate information corresponds to SCG LTM, and the measurement report includes the measurement results of the serving cell in SCG.

[0167] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0168] For example, in Figure 2;

[0169] Steps 2101 through 2103 can all be optional, and any one of them can be executed independently; and / or

[0170] Steps 2101 to 2103 can be combined arbitrarily, and any combination can be executed independently; and / or

[0171] 3. Steps 2101 to 2103 can be executed in different orders, and either order can be executed independently.

[0172] Figure 3 is a schematic diagram of one of the communication methods provided in this disclosure. As shown in Figure 3, the method includes the following steps:

[0173] Step 3101: The first network node sends mobility configuration information to the terminal.

[0174] In some embodiments, the steps and their optional implementations in other embodiments (such as the embodiment in Figure 2) described before or after this embodiment, as well as other related parts in the specification, can be referred to, which will not be repeated here.

[0175] Step 3102: The terminal determines the configuration type corresponding to the mobility configuration information.

[0176] In some embodiments, the steps and their optional implementations in other embodiments (such as the embodiment in Figure 2) described before or after this embodiment, as well as other related parts in the specification, can be referred to, which will not be repeated here.

[0177] For example, in Figure 3

[0178] Steps 3101 to 3102 are all optional steps, and any one of them can be executed independently; and / or

[0179] 2. Steps 3101 to 3102 can be executed in different orders, and either order can be executed independently.

[0180] The following is an exemplary description of the above method.

[0181] The method illustrated in this disclosure relates to a method for determining the configuration type corresponding to LTM candidate information of an MCG configuration. This method can be used in a dual-connectivity scenario as shown in Figure 4, and the complete content of the method is as follows.

[0182] Method 1: The terminal determines whether the cell corresponding to this LTM candidate information is a candidate PCell or a candidate PSCell based on whether each LTM configuration sent by the MCG and the candidate target configuration in the LTM candidate information contains the configuration of MCG and / or the configuration of SCG contains the synchronization reconfiguration (reconfigurationWithSync): if the MCG configuration contains reconfigurationWithSync, then this LTM candidate information corresponds to MCG LTM; otherwise, if the SCG configuration contains reconfigurationWithSync, then the LTM candidate information corresponds to SCG LTM.

[0183] Method 2: The terminal determines the LTM candidate information based on the first physical cell identifier (PCI) indicated by the LTM candidate cell identifier (ltm-CandidatePCI-r18) contained in the LTM candidate information. If the first PCI is the second PCI indicated by the MCG configuration contained in the candidate target configuration corresponding to this LTM candidate information, then this LTM candidate information corresponds to MCG LTM; if the first PCI is the third PCI indicated by the SCG configuration contained in the candidate target configuration corresponding to this LTM candidate information, then this LTM candidate information corresponds to SCG LTM.

[0184] Method 3: Introduce indication information to indicate whether this LTM candidate information corresponds to MCG LTM or SCG LTM.

[0185] Optionally, MN / MCG can configure MCG LTM and (inter-SN)SCG LTM through the same RRC information element (IE), for example, using ltm-Config-r18 to configure MCG LTM and SCG LTM in ltm-config.

[0186] Optionally, the parameter ltm-CandidateToAddModList can contain both the candidate identifier (LTM-CandidateId) configured for MCG LTM and the candidate identifier (LTM-CandidateId) configured for SCG LTM. However, the same candidate LTM identifier (LTM-CandidateId) cannot be used for both MCG LTM and SCG LTM. LTM-Config-r18 and LTM-Candidate-r18 are as follows:

[0187] LTM-Config-r18: LTM configuration;

[0188] LTM-Candidate-r18: LTM candidate information;

[0189] ltm-CandidateConfig-r18: Candidate target configuration (this candidate target configuration corresponds to an RRC reconfiguration message, which can contain both MCG and SCG configurations).

[0190] ltm-CandidatePCI-r18: LTM candidate cell identifier contained in the LTM candidate information: first PCI.

[0191] The configuration of MCG and SCG is configured through the CellGroupConfig IE element, which includes special cell configuration (spCellConfig). spCellConfig can be reconfigured synchronously (reconfigurationWithSync). The synchronous reconfiguration configures the special cell common configuration (spCellConfigCommon), which includes the physical cell identifier (physCellId), corresponding to the second PCI (in the MCG configuration) or the third PCI (in the SCG configuration).

[0192] For example, the terminal configures the above information based on the following ASN.1RRC information element.

[0193] The terminal receives the first LTM configuration sent by the MCG and maintains the LTM configuration, wherein the LTM configuration is associated with the MCG contained in the RRC Reconfiguration message received via SIB1.

[0194] The terminal determines, based on any one or more of the methods 1 to 3 below, whether one or more LTM candidate information configured in the first LTM configuration corresponds to MCG LTM or SCG LTM (Note: In other words, it can be determined whether the LTM candidate information is used for MCG / PCell LTM or SCG / PSCell LTM, or for MCG / PCell mobility or for SCG / PSCell mobility).

[0195] Method 1: The terminal determines whether the cell corresponding to this LTM candidate information is a candidate PCell or a candidate PSCell by checking whether each LTM configuration sent by the MCG and the candidate target configuration in the LTM candidate information contains MCG configuration and / or SCG configuration containing reconfigurationWithSync.

[0196] 1) When the MCG configuration includes synchronous reconfiguration, the LTM candidate information corresponds to the MCG LTM;

[0197] 2) When the SCG configuration includes synchronous reconfiguration, the LTM candidate information corresponds to the SCG LTM;

[0198] 3) In some embodiments, the terminal needs to first evaluate whether the MCG configuration includes synchronous reconfiguration. If it does not include it, then it evaluates whether the SCG configuration includes synchronous reconfiguration. That is, if the MCG configuration and SCG configuration in a candidate target configuration both include synchronous reconfiguration, then it is an MCG LTM (or an MCG LTM with SCG changes / additions).

[0199] 4) In some embodiments, the terminal first evaluates whether the MCG configuration includes synchronous reconfiguration. If so, the LTM candidate information corresponds to the MCG LTM; otherwise, the LTM candidate information corresponds to the SCG LTM.

[0200] That is, for any LTM candidate information (or any LTM candidate identifier) ​​in the LTM configuration currently maintained by the terminal, if the MCG contained in the RRC reconfiguration message of the LTM candidate configuration (or the LTM candidate identifier associated with this LTM candidate information) contains synchronous reconfiguration, then this LTM candidate (LTM candidate identifier) ​​corresponds to the MCG LTM.

[0201] Otherwise, if the SCG contained in the RRC reconfiguration message corresponding to the LTM candidate configuration in this LTM candidate information (or the LTM candidate identifier associated with this LTM candidate) contains synchronous reconfiguration, then this LTM candidate (LTM candidate identifier) ​​corresponds to the SCG LTM.

[0202] In some embodiments, for each LTM candidate identifier in the LTM configuration of the current terminal configuration:

[0203] If the RRC reconfiguration in the LTM candidate configuration associated with the LTM candidate identifier includes both the primary cell group and the synchronization reconfiguration, then the candidate LTM configuration associated with the LTM candidate identifier is considered to be MCG LTM.

[0204] Otherwise, (for example, if the RRC reconfiguration in the LTM candidate configuration associated with the LTM candidate identifier includes a secondary cell group and includes synchronization reconfiguration), the candidate LTM configuration associated with the LTM candidate identifier is considered to be SCG LTM.

[0205] Example:

[0206] 1>for each LTM-CandidateId within the ltm-Config that is part of the current UE configuration:

[0207] 2>if the RRCReconfiguration within ltm-CandidateConfig associated with LTM-CandidateId the includ es the masterCellGroup including the reconfigurationWithSync,consider the ltm-Candidate associated with LTM-CandidateId configured for MCG LTM;

[0208] 2>else if the RRCReconfiguration within ltm-CandidateConfig associated with LTM-CandidateId the includes the secondaryCellGroup including the reconfigurationWithSync,consider the ltm-Candidate associate with LTM-CandidateId configured for SCG LTM.

[0209] Method 2: The terminal determines the first PCI based on the LTM candidate cell identifier indicated in the LTM candidate information:

[0210] 1) If the first PCI is equal to the second PCI indicated by the MCG configuration in the candidate target configuration corresponding to this LTM candidate information, then this LTM candidate information corresponds to the MCG LTM.

[0211] 2) If the first PCI is equal to the third PCI indicated by the SCG configuration in the candidate target configuration corresponding to this LTM candidate information, then this LTM candidate information corresponds to SCG LTM.

[0212] 3) In some embodiments, the terminal needs to first evaluate whether the first PCI and the second PCI are equal, and then evaluate whether the first PCI and the third PCI are equal;

[0213] 4) In some embodiments, the terminal needs to first evaluate whether the first PCI and the second PCI are equal. If they are, the LTM candidate information corresponds to MCG LTM; otherwise, the LTM candidate information corresponds to SCG LTM.

[0214] That is, for any LTM candidate information candidate LTM in the LTM configuration currently maintained by the terminal (or for any LTM candidate identifier in LTM-Config-r18), if the LTM candidate cell identifier in this LTM candidate information (or the LTM candidate identifier associated with this LTM candidate identifier) ​​is (or equal to) the PCI indicated in the Common Serving Cell Configuration (ServingCellConfigCommon) in the MCG included in the RRC reconfiguration corresponding to the LTM candidate configuration, then this candidate LTM (LTM candidate identifier) ​​corresponds to the MCG LTM.

[0215] Otherwise, if the LTM candidate cell identifier in this LTM candidate information (or the LTM candidate identifier associated with it) is (or equal to) the SCG contained in the RRC reconfiguration corresponding to the LTM candidate configuration, which contains the PCI indicated in the general serving cell configuration in the synchronous reconfiguration, then this candidate LTM (LTM candidate identifier) ​​corresponds to the MCG LTM.

[0216] In some embodiments, for each LTM candidate identifier within the LTM configuration in the current terminal configuration:

[0217] If the LTM candidate cell identifier associated with the LTM candidate identifier matches the value indicated by the general serving cell configuration included in the synchronization reconfiguration within the primary cell group in the received LTM candidate configuration associated with the LTM candidate identifier, then the candidate LTM configuration associated with the LTM candidate identifier is considered to be MCG LTM.

[0218] Otherwise, (for example, if the LTM candidate cell identifier associated with the LTM candidate identifier matches the value indicated by the general serving cell configuration included in the synchronization reconfiguration within the secondary cell group of the received LTM candidate configuration associated with the LTM candidate identifier), the candidate LTM configuration associated with the LTM candidate identifier is considered to be SCG LTM.

[0219] For example:

[0220] 1>for each LTM-CandidateId within the ltm-Config that is part of the current UE configuration:

[0221] 2>if the ltm-CandidatePCI associated with LTM-CandidateId is a physical cell identity matching the value indicated in the ServingCellConfigCommon included in the reconfigurationWithSync within the master rCellGroup in the received ltm-CandidateConfig associated with LTM-CandidateId,consider the ltm-Candid ate associated with LTM-CandidateId configured for MCG LTM;

[0222] 2>else if the ltm-CandidatePCI associated with LTM-CandidateId is a physical cell identity matching the value indicated in the ServingCellConfigCommon included in the reconfigurationWithSync within the secondaryCellGroup in the received ltm-CandidateConfig associated with LTM-CandidateId,consider the lt m-Candidate associated with LTM-CandidateId configured for SCG LTM.

[0223] Method 3: Determine whether the LTM candidate information corresponds to MCG LTM or SCG LTM based on the indication information from the network side. The network side indication information configuration is as follows:

[0224] 1) Add indication information to the LTM candidate information to indicate whether it is used for MCG LTM or SCG LTM: When the indication information indicates MCG LTM / SCG LTM, the LTM candidate information / LTM candidate identifier corresponding to this indication information corresponds to MCG LTM / SCG LTM.

[0225] Exemplary

[0226] 2) Add indication information to the LTM configuration to indicate the LTM candidate identifiers used for MCG LTM and / or SCG LTM. This can be updated via add / remove list, or configured directly: For an LTM candidate identifier in the MCG / SCG candidate identifier list, this LTM candidate identifier (the LTM candidate information corresponding to this LTM candidate identifier) ​​corresponds to MCG LTM / SCG LTM.

[0227] Option 2-1:

[0228] Option 2-2:

[0229] In some embodiments, the terminal determines the LTM configuration corresponding to the following operations based on the above information.

[0230] 1. Fast Failure Recovery Based on MCG LTM Configuration: When a terminal fails, cell selection is performed to select a cell for radio link recovery. If this cell is an LTM candidate cell in the MCG LTM configuration, the UE performs an LTM cell handover to this cell.

[0231] That is, when the terminal fails and performs cell selection, after selecting a cell for radio link recovery, if the selected cell is one of the LTM candidate cells and the primary cell group contains synchronization reconfiguration in the LTM candidate information element (IE) of the LTM configuration associated with the primary cell group (MCG), then the terminal performs the LTM cell handover process of the selected LTM candidate cell.

[0232] 2. Evaluation and reporting of measurement event / condition-triggered C-LTM (Conditional LTM) execution conditions:

[0233] The terminal determines whether the SPCell in the evaluation measurement event / C-LTM execution condition is the current PCell or the SCell based on whether the LTM candidate information corresponds to MCG LTM or SCG LTM. If the LTM candidate information corresponds to MCG LTM, the evaluation is based on the measurement results of the current serving PCell and the corresponding candidate cell (candidate PCell); if the LTM candidate information corresponds to SCG LTM, the evaluation is based on the measurement results of the current serving PSCell and the corresponding candidate cell (candidate PSCell).

[0234] For measurement reporting, the terminal determines whether the measurement report includes the measurement results of the serving cell in the MCG or the serving cell in the SCG, based on whether the LTM candidate information corresponds to the MCG LTM or the SCG LTM. If the LTM candidate information corresponds to the MCG LTM, the measurement report includes the measurement results of the serving cell in the MCG; if the LTM candidate information corresponds to the SCG LTM, the measurement report includes the measurement results of the serving cell in the SCG.

[0235] In summary, the above examples of this disclosure can determine whether the LTM candidate information in the LTM configuration of the MCG configuration is used for MCG LTM or SCG LTM, thereby supporting corresponding functions such as failure recovery, measurement reporting, and mobility execution condition assessment.

[0236] In the embodiments disclosed herein, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations in other embodiments.

[0237] This disclosure also proposes an apparatus (also referred to as a communication device, etc.) for implementing any of the above methods. For example, an apparatus is proposed, which includes units or modules for implementing the steps performed by the terminal in any of the above methods.

[0238] 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 a configuration file, 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.

[0239] 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).

[0240] Figure 5A is a schematic diagram of the structure of a terminal proposed in an embodiment of this disclosure. The terminal 5100 is used to execute any of the above methods. In some embodiments, as shown in Figure 5A, the terminal 5100 may include: a transceiver module 5101 and a processing module 5102.

[0241] In some embodiments, the transceiver module is used to receive mobility configuration information sent by the first network node; optionally, the transceiver module is used to perform at least one of the communication steps such as receiving / sending performed by the terminal 5100 in any of the above methods (e.g., step 2101, step 3101, etc., but not limited thereto), which will not be described in detail here.

[0242] In some embodiments, the above processing module is used to determine the configuration type corresponding to the mobility configuration information; optionally, the above processing module is used to execute at least one of the communication steps such as processing performed by the terminal 5100 in any of the above methods (e.g., step 2102, step 2103, step 3102, etc., but not limited thereto), which will not be elaborated here.

[0243] In some embodiments, the processing module may be a single module or may include multiple sub-modules. Optionally, the multiple sub-modules may each perform all or part of the steps required by the processing module.

[0244] In some embodiments, the processing module can be interchanged with the processor, and the transceiver module can include a transmitting module and / or a receiving module. The transmitting module and the receiving module can be separate or integrated together, and the transceiver module can be interchanged with the transceiver.

[0245] Figure 5B is a schematic diagram of the structure of a first network node according to an embodiment of this disclosure. The first network node 5200 is used to perform any of the above methods. In some embodiments, as shown in Figure 5B, the first network node 5200 may include a transceiver module 5201.

[0246] In some embodiments, the transceiver module is used to send mobility configuration information to the terminal so that the terminal can determine the configuration type corresponding to the mobility configuration information; optionally, the transceiver module is used to perform at least one of the communication steps such as receiving and / or sending performed by the first network node 5200 in any of the above methods (e.g., step 2101, step 3101, etc., but not limited thereto), which will not be described in detail here.

[0247] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, which may be separate or integrated. Optionally, the transceiver module may be interchangeable with a transceiver.

[0248] Figure 6A is a schematic diagram of the structure of the communication device 6100 proposed in an embodiment of this disclosure. The communication device 6100 can be a network device (e.g., access network device, core network device, etc.), a terminal (e.g., user equipment, etc.), a chip, chip system, or processor that supports the network device in implementing any of the above methods, or a chip, chip system, or processor that supports the terminal in implementing any of the above methods. The communication device 6100 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.

[0249] As shown in Figure 6A, the communication device 6100 is used to execute any of the above methods. In some embodiments, the communication device 6100 includes one or more processors 6101. The processor 6101 may be a general-purpose processor or a special-purpose processor, such as a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. Optionally, the communication device 6100 is used to execute any of the above methods. Optionally, one or more processors 6101 are used to invoke instructions to cause the communication device 6100 to execute any of the above methods.

[0250] In some embodiments, the communication device 6100 further includes one or more transceivers 6102. When the communication device 6100 includes one or more transceivers 6102, the transceiver 6102 performs at least one of the communication steps (e.g., steps 2101, 3101, but not limited thereto) in the above method, such as sending and / or receiving, and the processor 6101 performs at least one of other steps (e.g., steps 2102, 2103, 3102, but not limited thereto). In optional embodiments, the transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, interface, etc., can be used interchangeably; the terms transmitter, sending unit, transmitter, sending circuit, etc., can be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., can be used interchangeably.

[0251] In some embodiments, the communication device 6100 further includes one or more memories 6103 for storing data and / or instructions. Optionally, one or more processors 6101 are used to invoke instructions stored in the memory 6103 to cause the communication device 6100 to perform any of the above methods. Optionally, all or part of the memory 6103 may also be located outside the communication device 6100. In an optional embodiment, the communication device 6100 may include one or more interface circuits 6104. Optionally, the interface circuit 6104 is connected to the memory 6102 and can be used to receive data and / or instructions from the memory 6102 or other devices, and can be used to send data and / or instructions to the memory 6102 or other devices. For example, the interface circuit 6104 can read data and / or instructions stored in the memory 6102 and send the data and / or instructions to the processor 6101.

[0252] The communication device 6100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 6100 described in this disclosure is not limited thereto, and the structure of the communication device 6100 may not be limited by FIG. 6A. 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, programs and / or instructions; (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.

[0253] Figure 6B is a schematic diagram of the structure of chip 6200 according to an embodiment of this disclosure. For cases where the communication device 6100 can be a chip or a chip system, please refer to the schematic diagram of chip 6200 shown in Figure 6B, but it is not limited thereto.

[0254] Chip 6200 includes one or more processors 6201. Chip 6200 is used to perform any of the methods described above.

[0255] In some embodiments, chip 6200 further includes one or more interface circuits 6202. Optionally, terms such as interface circuit, interface, and transceiver pin can be used interchangeably. In some embodiments, chip 6200 further includes one or more memories 6203 for storing data and / or instructions. Optionally, all or part of the memories 6203 may be located outside of chip 6200. Optionally, interface circuit 6202 is connected to memory 6203, and interface circuit 6202 can be used to receive data and / or instructions from memory 6203 or other devices, and interface circuit 6202 can be used to send data and / or instructions to memory 6203 or other devices. For example, interface circuit 6202 can read data and / or instructions stored in memory 6203 and send the data and / or instructions to processor 6201.

[0256] In some embodiments, the interface circuit 6202 performs at least one of the communication steps (e.g., steps 2101, 3101, but not limited thereto) in the above-described method, such as sending and / or receiving. For example, the interface circuit 6202 performing the communication steps (e.g., sending and / or receiving) in the above-described method means that the interface circuit 6202 performs data and / or instruction interaction between the processor 6201, the chip 6200, the memory 6203, or the transceiver device. In some embodiments, the processor 6201 performs at least one of other steps (e.g., steps 2102, 2103, 3102, but not limited thereto).

[0257] The modules and / or devices described in the various embodiments, such as virtual devices, physical devices, and chips, can be combined or separated arbitrarily as needed. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0258] This disclosure also proposes a storage medium storing instructions that, when executed on a communication device, cause the communication device 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.

[0259] This disclosure also proposes a program product, including a program and / or instructions, which, when executed by a communication device, cause the communication device to perform any of the above methods. Optionally, the program product is a computer program product. Optionally, the program product is stored on the storage medium.

[0260] 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 by comprising: The method is executed by a terminal, and the method includes: Receive mobility configuration information sent by the first network node; Determine the configuration type corresponding to the mobility configuration information.

2. The method of claim 1, wherein, The step of determining the configuration type corresponding to the mobility configuration information includes: Determine the configuration type corresponding to one or more mobility candidate information in the mobility configuration information. The configuration type includes a first configuration type and / or a second configuration type; The first configuration type is used to identify the mobility candidate information for primary cell group (MCG) mobility; The second configuration type is used to identify the mobility candidate information for secondary cell group (SCG) mobility.

3. The method according to claim 1 or 2, characterized in that, Determining the configuration type corresponding to the mobility configuration information includes: Determine whether the MCG configuration and / or SCG configuration in the candidate target configuration included in one or more mobility candidate information in the mobility configuration information includes synchronization reconfiguration information to obtain a first result; Based on the first result, the configuration type corresponding to the mobility configuration information is determined.

4. The method of claim 3, wherein, The step of determining the configuration type corresponding to the mobility configuration information based on the first result includes at least one of the following: If the first result indicates that the MCG configuration includes the synchronization reconfiguration information, the configuration type is determined to be the first configuration type; If the first result indicates that the SCG configuration includes the synchronization reconfiguration information, the configuration type is determined to be the second configuration type; If the first result indicates that both the MCG configuration and the SCG configuration include the synchronization reconfiguration information, then the configuration type is determined to be the first configuration type. If the first result indicates that the MCG configuration does not include the synchronization reconfiguration information, the configuration type is determined to be the second configuration type.

5. The method according to claim 1 or 2, characterized in that, Determining the configuration type corresponding to the mobility configuration information includes: Determine the first physical cell identifier (PCI) indicated by the mobility candidate cell identifier contained in one or more mobility candidate information in the mobility configuration information; Based on the first PCI, determine the configuration type corresponding to the mobility configuration information.

6. The method of claim 5, wherein, The step of determining the configuration type corresponding to the mobility configuration information based on the first PCI includes at least one of the following: If the first PCI is the same as the second PCI indicated by the MCG configuration in the candidate target configuration included in the mobility candidate information, the configuration type is determined to be the first configuration type. If the first PCI is the same as the third PCI indicated by the SCG configuration in the candidate target configuration included in the mobility candidate information, the configuration type is determined to be the second configuration type. If the first PCI is different from the second PCI indicated by the MCG configuration in the candidate target configuration included in the mobility candidate information, the configuration type is determined to be the second configuration type.

7. The method according to claim 1 or 2, characterized in that, Determining the configuration type corresponding to the mobility configuration information includes: The configuration type corresponding to the mobility configuration information is determined based on the indication information associated with one or more mobility candidate information in the mobility configuration information.

8. The method of claim 7, wherein, The step of determining the configuration type corresponding to the mobility configuration information based on the indication information associated with one or more mobility candidate information in the mobility configuration information includes: If the indication information indicates a first value, the configuration type is determined to be the first configuration type; If the indication information indicates a second value, the configuration type is determined to be the second configuration type.

9. The method according to claim 7 or 8, characterized in that, The indication information associated with the mobility candidate information includes at least one of the following: The mobility candidate information includes indicative information; Indication information associated with the mobility candidate information identifier.

10. The method according to any one of claims 1 to 9, characterized in that, The method further includes: Based on the configuration type, perform the first operation.

11. The method of claim 10, wherein, The first operation is a fast failure recovery based on MCG mobility configuration, wherein performing the first operation based on the configuration type includes: The cell selected by the terminal for failure recovery or reconstruction is determined to be the candidate cell corresponding to the mobility candidate information of the first configuration type; The mobility process is performed based on the mobility candidate information corresponding to the cells used for failure recovery or reconstruction.

12. The method of claim 10, wherein, The first operation is an evaluation of a measurement event or execution condition, wherein performing the first operation based on the configuration type includes at least one of the following: If the configuration type is determined to be the first configuration type, then the cell in the measurement event or the execution condition is determined to be the primary cell PCell, and an evaluation is performed based on the measurement results of the current serving PCell and the corresponding candidate PCells; If the configuration type is determined to be the second configuration type, then the cell in the measurement event or the execution condition is determined to be the primary and secondary cell PSCell, and an evaluation is performed based on the measurement results of the current serving PSCell and the corresponding candidate PSCell.

13. The method of claim 10, wherein, The first operation is the reporting of measurement events or execution conditions, wherein performing the first operation based on the configuration type includes at least one of the following: If the configuration type is determined to be the first configuration type, then the cell in the measurement event or the execution condition is determined to be the primary cell PCell, and the measurement result of the current serving PCell is carried in the reported measurement report; If the configuration type is determined to be the second configuration type, then the cell in the measurement event or the execution condition is determined to be the primary and secondary PSCell, and the measurement result of the current serving PSCell is carried in the reported measurement report.

14. A communication method, comprising: The method is executed by a first network node, and the method includes: Mobility configuration information is sent to the terminal so that the terminal can determine the configuration type corresponding to the mobility configuration information.

15. The method of claim 14, wherein, The configuration type corresponding to the mobility configuration information is the configuration type corresponding to one or more mobility candidate information in the mobility configuration information, and the configuration type includes a first configuration type and / or a second configuration type; the first configuration type is used to identify that the mobility candidate information is used for primary cell group (MCG) mobility; the second configuration type is used to identify that the mobility candidate information is used for secondary cell group (SCG) mobility.

16. The method according to claim 14 or 15, characterized in that, The configuration type corresponding to the mobility configuration information is determined based on a first result of whether the MCG configuration and / or SCG configuration of one or more mobility candidate information in the mobility configuration information includes synchronization reconfiguration information.

17. The method according to claim 16, characterized in that, If the first result indicates that the MCG configuration includes the synchronization reconfiguration information, the configuration type is the first configuration type; If the first result indicates that the SCG configuration includes the synchronization reconfiguration information, the configuration type is the second configuration type; If the first result indicates that both the MCG configuration and the SCG configuration include the synchronization reconfiguration information, the configuration type is the first configuration type; If the first result indicates that the MCG configuration does not include the synchronization reconfiguration information, the configuration type is the second configuration type.

18. The method according to claim 14 or 15, characterized in that, The configuration type corresponding to the mobility configuration information is determined based on the first physical cell identifier (PCI) indicated by the mobility candidate cell identifier contained in one or more mobility candidate information in the mobility configuration information.

19. The method according to claim 18, characterized in that, If the first PCI is the same as the second PCI indicated by the MCG configuration in the candidate target configuration included in the mobility candidate information, the configuration type is the first configuration type; If the first PCI is the same as the third PCI indicated by the SCG configuration in the candidate target configuration included in the mobility candidate information, the configuration type is the second configuration type. If the first PCI is different from the second PCI indicated by the MCG configuration in the candidate target configuration included in the mobility candidate information, the configuration type is the second configuration type.

20. The method according to claim 14 or 15, characterized in that, The configuration type corresponding to the mobility configuration information is determined based on the indication information associated with one or more mobility candidate information in the mobility configuration information.

21. The method according to claim 20, characterized in that, When the indication information indicates a first value, the configuration type is the first configuration type; When the indication information indicates a second value, the configuration type is the second configuration type.

22. The method of claim 20 or 21, wherein, The indication information associated with the mobility candidate information includes at least one of the following: The mobility candidate information includes indicative information; Indication information associated with the mobility candidate information identifier.

23. The method according to any one of claims 14 to 22, characterized in that, The configuration type is used by the terminal to perform the first operation.

24. The method of claim 23, wherein, The first operation is fast failure recovery based on MCG mobility configuration; the cell selected by the terminal for failure recovery or reconstruction is the candidate cell corresponding to the mobility candidate information of the first configuration type.

25. The method according to claim 23, characterized in that, The first operation is the evaluation of a measurement event or execution condition; when the configuration type is the first configuration type, the cell in the measurement event or execution condition is the primary cell PCell, and the terminal evaluates based on the measurement results of the current serving PCell and the corresponding candidate PCell; when the configuration type is the second configuration type, the cell in the measurement event or execution condition is the primary and secondary cell PSCell, and the terminal evaluates based on the measurement results of the current serving PSCell and the corresponding candidate PSCell.

26. The method of claim 23, wherein, The first operation is the reporting of a measurement event or execution condition; when the configuration type is the first configuration type, the cell in the measurement event or execution condition is the primary cell PCell, and the measurement report reported by the terminal carries the measurement result of the current serving PCell; when the configuration type is the second configuration type, the cell in the measurement event or execution condition is the primary and secondary cell PSCell, and the measurement report reported by the terminal carries the measurement result of the current serving PSCell.

27. A communications device, characterized by The communication device is used to perform the method according to any one of claims 1-13 or 14-26.

28. A storage medium, the storage medium storing instructions, wherein, When the instructions are executed on the communication device, the communication device performs the method as described in any one of claims 1-13 or 14-26.

29. A program product comprising at least one of a program, instructions, characterized in that When at least one of the programs or instructions is executed by a communication device, it implements the steps of the method according to any one of claims 1-13 or 14-26.

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