Node device and method performed by the node device

Abstract

Various embodiments of the present disclosure propose a method performed by a UE in a communication system, receiving a first message from a first base station, the first message including candidate configuration information that includes first configuration information and second configuration information; processing the received candidate configuration information; wherein the first configuration information includes minimum configuration information required for data transmission after the UE accesses a target cell or a candidate cell.

Description

NODE DEVICE AND METHOD PERFORMED BY THE NODE DEVICE

[0001] The disclosure relates to the field of communications, and more particularly, to a method performed by a first node, a method performed by a second node, a method performed by a third node, and the first node, the second node, and the third node.

[0002] Considering the development of wireless communication from generation to generation, the technologies have been developed mainly for services targeting humans, such as voice calls, multimedia services, and data services. Following the commercialization of 5G (5th-generation) communication systems, it is expected that the number of connected devices will exponentially grow. Increasingly, these will be connected to communication networks. Examples of connected things may include vehicles, robots, drones, home appliances, displays, smart sensors connected to various infrastructures, construction machines, and factory equipment. Mobile devices are expected to evolve in various form-factors, such as augmented reality glasses, virtual reality headsets, and hologram devices. In order to provide various services by connecting hundreds of billions of devices and things in the 6G (6th-generation) era, there have been ongoing efforts to develop improved 6G communication systems. For these reasons, 6G communication systems are referred to as beyond-5G systems.

[0003] 6G communication systems, which are expected to be commercialized around 2030, will have a peak data rate of tera (1,000 giga)-level bps and a radio latency less than 100μsec, and thus will be 50 times as fast as 5G communication systems and have the 1 / 10 radio latency thereof.

[0004] In order to accomplish such a high data rate and an ultra-low latency, it has been considered to implement 6G communication systems in a terahertz band (for example, 95GHz to 3THz bands). It is expected that, due to severer path loss and atmospheric absorption in the terahertz bands than those in mmWave bands introduced in 5G, technologies capable of securing the signal transmission distance (that is, coverage) will become more crucial. It is necessary to develop, as major technologies for securing the coverage, radio frequency (RF) elements, antennas, novel waveforms having a better coverage than orthogonal frequency division multiplexing (OFDM), beamforming and massive multiple input multiple output (MIMO), full dimensional MIMO (FD-MIMO), array antennas, and multiantenna transmission technologies such as large-scale antennas. In addition, there has been ongoing discussion on new technologies for improving the coverage of terahertz-band signals, such as metamaterial-based lenses and antennas, orbital angular momentum (OAM), and reconfigurable intelligent surface (RIS).

[0005] Moreover, in order to improve the spectral efficiency and the overall network performances, the following technologies have been developed for 6G communication systems: a full-duplex technology for enabling an uplink transmission and a downlink transmission to simultaneously use the same frequency resource at the same time; a network technology for utilizing satellites, high-altitude platform stations (HAPS), and the like in an integrated manner; an improved network structure for supporting mobile base stations and the like and enabling network operation optimization and automation and the like; a dynamic spectrum sharing technology via collision avoidance based on a prediction of spectrum usage; an use of artificial intelligence (AI) in wireless communication for improvement of overall network operation by utilizing AI from a designing phase for developing 6G and internalizing end-to-end AI support functions; and a next-generation distributed computing technology for overcoming the limit of UE computing ability through reachable super-high-performance communication and computing resources (such as mobile edge computing (MEC), clouds, and the like) over the network. In addition, through designing new protocols to be used in 6G communication systems, developing mechanisms for implementing a hardware-based security environment and safe use of data, and developing technologies for maintaining privacy, attempts to strengthen the connectivity between devices, optimize the network, promote softwarization of network entities, and increase the openness of wireless communications are continuing.

[0006] It is expected that research and development of 6G communication systems in hyper-connectivity, including person to machine (P2M) as well as machine to machine (M2M), will allow the next hyper-connected experience. Particularly, it is expected that services such as truly immersive extended reality (XR), high-fidelity mobile hologram, and digital replica could be provided through 6G communication systems. In addition, services such as remote surgery for security and reliability enhancement, industrial automation, and emergency response will be provided through the 6G communication system such that the technologies could be applied in various fields such as industry, medical care, automobiles, and home appliances.

[0007] In order to meet an increasing demand for wireless data communication services since a deployment of 4G communication system, efforts have been made to develop an improved 5G or pre-5G communication system. Therefore, the 5G or pre-5G communication system is also called "beyond 4G network" or "post LTE system".

[0008] Wireless communication is one of the most successful innovations in modern history. Recently, a number of subscribers of wireless communication services has exceeded 5 billion, and it continues growing rapidly. With the increasing popularity of smart phones and other mobile data devices (such as tablet computers, notebook computers, netbooks, e-book readers and machine-type devices) in consumers and enterprises, a demand for wireless data services is growing rapidly. In order to meet rapid growth of mobile data services and support new applications and deployments, it is very important to improve efficiency and coverage of wireless interfaces and reduce communication interruption and handover delay during the movement of user equipment.

[0009] According to an aspect of the present disclosure, there is provided a method performed by a first node in a communication system, the method comprising: receiving a first message from a second node, the first message including candidate configuration information that includes first configuration information and second configuration information; processing the received candidate configuration information; wherein the first configuration information includes minimum configuration information required for data transmission after the first node accesses a target cell or a candidate cell; wherein the second configuration information includes configuration information not included in the first configuration information and required by the first node for data transmission in the target cell or the candidate cell; wherein the processing includes processing the first configuration information before receiving the handover signaling and processing the second configuration information after receiving the handover signaling.

[0010] According to the method performed by the first node in the communication system provided by the present disclosure, wherein the first configuration information includes at least one of: first configuration identification information for identifying the first configuration information; first cell configuration information related to a cell required to be configured for data transmission after the first node accesses the target cell or the candidate cell; wherein the second configuration information includes at least one of: second configuration identification information for identifying the second configuration information; second cell configuration information related to data transmission after the first node accesses the target cell or the candidate cell and not included in the first cell configuration information.

[0011] According to the method performed by the first node in the communication system provided by the present disclosure, wherein the first configuration information includes configuration information required for data transmission of a first signaling radio bearer after the first node accesses the target cell or the candidate cell.

[0012] According to the method performed by the first node in the communication system provided by the present disclosure, wherein the first message includes at least one of the following information: first indication information indicating the first node to process the first configuration information; first candidate configuration threshold information indicating a maximum number of candidate configurations for the first node to perform fast configuration information processing; first cell threshold information indicating a maximum number of cells for the first node to perform fast configuration information processing; first bearer threshold information indicating a maximum number of bearers for the first node to perform fast configuration information processing; second cell threshold information indicating a number of cells for the first node to stop processing the second configuration information; second bearer threshold information indicating a number of bearers for the first node to stop processing the second configuration information; first signal threshold information indicating a signal threshold of a serving cell for the first node to perform fast configuration information processing; second signal threshold information indicating a signal threshold of a target cell or a candidate cell for the first node to perform fast configuration information processing; first release threshold information indicating threshold information required for the first node to release configuration information.

[0013] According to the method performed by the first node in the communication system provided by the present disclosure, wherein the candidate configuration information includes at least one of: candidate configuration identification information; information indicating a number of cells included in the candidate configuration information; information indicating a number of bearers included in the candidate configuration information; first configuration indication information indicating information required for processing the first configuration information; second configuration indication information indicating information required for processing the second configuration information; third configuration information for generating a complete configuration of a target cell or a candidate cell; third configuration indication information indicating information required for processing the third configuration information; indication information indicating the first node to apply the first configuration information in advance; indication information indicating the first node to apply the second configuration information in advance; indication information indicating the first node to apply the third configuration information in advance.

[0014] According to the method performed by the first node in the communication system provided by the present disclosure, further comprising: receiving a second message transmitted by the second node, the second message triggering the first node to perform fast processing of the configuration information; wherein the second message includes at least one of the following information: indication information of an activated transmission configuration indicator (TCI) indicating an activated TCI state; information triggering the first node to perform a random access with the candidate cell in advance; information indicating the first node to process the first configuration information; information indicating the first node to process the second configuration information; information indicating the first node to process third configuration information; information indicating the first node to release the first configuration information; information indicating the first node to release the second configuration information; information indicating the first node to release the third configuration information.

[0015] According to the method performed by the first node in the communication system provided by the present disclosure, wherein the processing is processing the first configuration information according to at least one of: processing the first configuration information after the first node receives the first message; determining whether to process the first configuration information based on first indication information included in the first message; determining whether to process the first configuration information based on first candidate configuration threshold information; determining whether to process the first configuration information based on first cell threshold information; determining whether to process the first configuration information based on first bearer threshold information; determining whether to process the first configuration information based on second cell threshold information; determining whether to process the first configuration information based on second bearer threshold information; determining whether to process the first configuration information based on first signal threshold information; determining whether to process the first configuration information based on second signal threshold information.

[0016] According to the method performed by the first node in the communication system provided by the present disclosure, wherein the processing comprises at least one of decoding of Abstract Syntax Notation One(ASN.1), a validity check, or a compliance check.

[0017] According to the method performed by the first node in the communication system provided by the present disclosure, wherein the first configuration information and the second configuration information are transmitted by the third node to the second node by a first response message.

[0018] According to the method performed by the first node in the communication system provided by the present disclosure, wherein the processing the first configuration information occurs after the first node receives a second message.

[0019] According to the method performed by the first node in the communication system provided by the present disclosure, wherein the first cell configuration information or the second cell configuration information includes at least one of: identification information of a cell; identification information of the first node; configuration information of a random access; configuration information of a physical channel; configuration information of an uplink grant; configuration information of a downlink grant; configuration information of one or more radio bearers; media access control configuration information.

[0020] According to another aspect of the present disclosure, there is provided a method performed by a second node in a communication system, the method comprising: receiving a first response message from a third node, the first response message including candidate configuration information that includes first configuration information and second configuration information; transmitting a first message including the candidate configuration information to a first node; wherein the first configuration information includes minimum configuration information required for data transmission after the first node accesses a target cell or a candidate cell; wherein the second configuration information includes configuration information not included in the first configuration information and required by the first node for data transmission in the target cell or the candidate cell; wherein the first configuration information is processed by the first node before receiving handover signaling, and the second configuration information is processed by the first node after receiving handover signaling.

[0021] According to the method performed by the second node in the communication system provided by the present disclosure, wherein the first configuration information includes at least one of: first configuration identification information for identifying the first configuration information; first cell configuration information related to a cell required to be configured for data transmission after the first node accesses the target cell or the candidate cell; wherein the second configuration information includes at least one of: second configuration identification information for identifying the second configuration information; second cell configuration information related to data transmission after the first node accesses the target cell or the candidate cell and not included in the first cell configuration information

[0022] According to the method performed by the second node in the communication system provided by the present disclosure, wherein the first configuration information includes configuration information required for data transmission of a first signaling radio bearer after the first node accesses the target cell or the candidate cell.

[0023] According to the method performed by the second node in the communication system provided by the present disclosure, wherein the first message includes at least one of the following information: first indication information indicating the first node to process the first configuration information; first candidate configuration threshold information indicating a maximum number of candidate configurations for the first node to perform fast configuration information processing; first cell threshold information indicating a maximum number of cells for the first node to perform fast configuration information processing; first bearer threshold information indicating a maximum number of bearers for the first node to perform fast configuration information processing; second cell threshold information indicating a number of cells for the first node to stop processing the second configuration information; second bearer threshold information indicating a number of bearers for the first node to stop processing the second configuration information; first signal threshold information indicating a signal threshold of a serving cell for the first node to perform fast configuration information processing; second signal threshold information indicating a signal threshold of a target cell or a candidate cell for the first node to perform fast configuration information processing; first release threshold information indicating threshold information required for the first node to release configuration information.

[0024] According to the method performed by the second node in the communication system provided by the present disclosure, wherein the candidate configuration information includes at least one of: candidate configuration identification information; information indicating a number of cells included in the candidate configuration information; information indicating a number of bearers included in the candidate configuration information; first configuration indication information indicating information required for processing the first configuration information; second configuration indication information indicating information required for processing the second configuration information; third configuration information for generating a complete configuration of a target cell or a candidate cell; third configuration indication information indicating information required for processing the third configuration information; indication information indicating the first node to apply the first configuration information in advance; indication information indicating the first node to apply the second configuration information in advance; indication information indicating the first node to apply the third configuration information in advance.

[0025] According to the method performed by the second node in the communication system provided by the present disclosure, further comprising: transmitting a second message to the first node, the second message triggering the first node to perform fast processing of the configuration information; wherein the second message includes at least one of the following information: indication information of an activated transmission configuration indicator (TCI) indicating an activated TCI state; information triggering the first node to perform a random access with the candidate cell in advance; information indicating the first node to process the first configuration information; information indicating the first node to process the second configuration information; information indicating the first node to process third configuration information; information indicating the first node to release the first configuration information; information indicating the first node to release the second configuration information; information indicating the first node to release the third configuration information.

[0026] According to another aspect of the present disclosure, there is provided a method performed by a third node in a communication system, the method comprising: receiving a first request message from a second node, the first request message requesting to configure a target cell or candidate cell of a first node; transmitting a first response message to the second node, the first response message including candidate configuration information that includes first configuration information and second configuration information; wherein the candidate configuration information is transmitted by the second node to the first node; wherein the first configuration information includes minimum configuration information required for data transmission after the first node accesses a target cell or a candidate cell; wherein the second configuration information includes configuration information not included in the first configuration information and required by the first node for data transmission in the target cell or the candidate cell; wherein the first configuration information is processed by the first node before receiving handover signaling, and the second configuration information is processed by the first node after receiving handover signaling.

[0027] According to the method performed by the third node in the communication system provided by the present disclosure, wherein the first configuration information includes at least one of: first configuration identification information for identifying the first configuration information; first cell configuration information related to a cell required to be configured for data transmission after the first node accesses the target cell or the candidate cell; wherein the second configuration information includes at least one of: second configuration identification information for identifying the second configuration information; second cell configuration information related to data transmission after the first node accesses the target cell or the candidate cell and not included in the first cell configuration information.

[0028] According to another aspect of the present disclosure, a node device is provided, the node device comprising:

[0029] A transceiver configured to transmit and receive signals with the outside; and a controller configured to control the transceiver to perform the method of any one of the above performed by the the first node or second node or the third node.

[0030] Figure 1 is an exemplary system architecture of System Architecture Evolution (SAE).

[0031] Figure 2 is an exemplary system architecture according to various embodiments of the present disclosure.

[0032] Figure 3 is a schematic diagram of a first example process according to the present disclosure.

[0033] Figure 4 is a schematic diagram of a second example process according to the present disclosure.

[0034] Figure 5 is a schematic diagram of a third example process according to the present disclosure.

[0035] Figure 6 is a schematic diagram of a fourth example process according to the present disclosure.

[0036] Figure 7 is a schematic diagram of a fifth example process according to the present disclosure.

[0037] Figure 8 is a block diagram illustrating a structure of a node according to an embodiment of the present disclosure.

[0038] The following description with reference to the accompanying drawings is provided to facilitate a comprehensive understanding of various embodiments of the present disclosure defined by the claims and their equivalents. This description includes various specific details to facilitate understanding but should only be considered as exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the present disclosure. In addition, for the sake of clarity and conciseness, descriptions of well-known functions and structures may be omitted. In the present disclosure, elements expressed in the singular form may also be understood to be expressed in the plural form. Similar words such as singular forms "a", "an" or "the" do not express a limitation of quantity, but express the existence of at least one of the referenced item, unless the context clearly dictates otherwise. For example, reference to "a component surface" includes reference to one or more of such surfaces.

[0039] The terms and expressions used in the following specification and claims are not limited to their dictionary meanings, but are only used by the inventors to enable a clear and consistent understanding of the present disclosure. Therefore, it should be obvious to those skilled in the art that the following descriptions of various embodiments of the present disclosure are provided for illustration usages only and are not intended to limit the usages of the present disclosure as defined in the appended claims and their equivalents.

[0040] It should be understood that singular forms of "a", "an" and "the" include plural referents unless the context clearly indicates otherwise. Thus, for example, a reference to a "component surface" includes a reference to one or more such surfaces.

[0041] The terms "include" or "may include" refer to the existence of a corresponding disclosed function, operation or component that can be used in various embodiments of the present disclosure, and do not limit the existence of one or more additional functions, operations or features. In addition, the terms "including" or "having" can be interpreted as indicating certain characteristics, numbers, steps, operations, constituent elements, components or combinations thereof, but should not be interpreted as excluding the possibility of the existence of one or more other characteristics, numbers, steps, operations, constituent elements, components or combinations thereof.

[0042] The term "or" used in various embodiments of the present disclosure includes any of the listed terms and all combinations thereof. For example, "a or b" may include a, may include b, or may include both a and b.

[0043] In addition, "at least one of A, B, and C" as described in the present disclosure may be understood to include A, or B, or C, or any combination of A, B, and C.

[0044] In addition, "at least one of A, B, or C" as described in the present disclosure may be understood to include A, or B, or C, or any combination of A, B, and C.

[0045] Furthermore, "A / B" as described in the present disclosure may be understood as "A and / or B," which may include A, or B, or both A and B.

[0046] Furthermore, "A, B" as described in the present disclosure may be understood as "A and / or B," which may include A, or B, or both A and B.

[0047] Furthermore, "A and B" as described in the present disclosure may be understood as "A and / or B," which may include A, or B, or both A and B.

[0048] Furthermore, "if condition A and condition B are satisfied," as described in the present disclosure, may not be limited to a case where both condition A and condition B are satisfied, but may be understood to include a case where either condition A or condition B is individually satisfied, both condition A and condition B are satisfied, or one or more additional conditions are satisfied in combination.

[0049] Furthermore, throughout this disclosure, ordinal terms such as "first," "second," "third," etc., (and similar qualifiers) are used merely to distinguish between different instances, occurrences, configurations, messages, stages, elements or aspects of elements, operations, or information as described herein. Unless the context clearly dictates otherwise, the use of such ordinal terms does not itself require that the elements, operations, or information distinguished by these terms be structurally different, numerically distinct, or substantively dissimilar. For example, a "first signal" and a "second signal" may refer to instances of the same signal transmitted at different times or containing the same core information despite minor variations, or they may refer to signals with different content or characteristics, depending on the specific context. Similarly, a "first value" and a "second value" may represent the same magnitude but measured or applied in different circumstances, or they may represent different magnitudes. The interpretation should be guided by the specific technical context, function, and relationship described in the relevant portion of the specification and claims.

[0050] Furthermore, the terms "first ~", "second ~", etc., as described in the present disclosure with respect to various elements (e.g., information, objects, operation, sequences, or the like), should not limit those elements. These terms may only be intended to distinguish one element from another, and may not be intended to indicate a specific order. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element.

[0051] Furthermore, even if "first ~" and "second ~" are described in the present disclosure, it may be understood that element(s) referred to by "first ~" and "second ~" may be the same or different. For example, in case of element(s) being information, first information and second information may both be same information and, in some cases, are separate and different information.

[0052] In addition, the terms "if ~" and "in case that ~" as used in the disclosure or claims may be interpreted to include the meanings of "when (or upon) ~," "in response to ~," "based on ~," or "according to ~," and may be used interchangeably with these expressions. In addition, expressions other than those exemplified herein may also be used, as long as they have substantially the same meaning and do not impair the technical features of the present disclosure. If a method step (e.g. transmit a signal) is performed according to the disclosure of the application in connection with one of the above terms (such as "in case that ~" or the like), it may be interpreted to include the meanings (disclosure) of a prior determination that a feature has a specific state "~" (e.g. a bit length is above X), and then perform the method step in response to said determination.

[0053] and may include downlink control information (DCI). In addition, the higher layer signaling may include a medium access control (MAC) control message, a radio resource control (RRC) signaling message, a non-access stratum (NAS) signaling message, or an application layer message. The RRC signaling message may be referred to as L3 (layer 3) signaling. It should be noted, however, that the higher layer signaling is not limited to the aforementioned examples.

[0054] In addition, the term "not perform" as used in the present disclosure or claims may, in context, be understood to mean that the corresponding step is omitted or skipped. Such a term may be replaced with other terms having the same or substantially equivalent meaning.

[0055] In addition, "transmitting a message including A and B" as described in the present disclosure, may be understood as encompassing both (i) transmitting A and B in a single message, and (ii) transmitting A and B separately via multiple messages (e.g., transmitting a first message including A and a second message including B). This interpretation may also apply to messages that include two or more items (e.g., A, B, C), transmitted either together or separately.

[0056] In addition, "transmitting a message including A and transmitting a message including B" may also be interpreted as transmitting a message including A and B in a single message.

[0057] In the embodiments of the present disclosure described herein, terms or components included in the disclosure may be expressed in singular or plural form depending on the specific embodiments presented. However, such singular or plural expressions are selected appropriately for convenience of description, and the present disclosure is not limited to a singular or plural number of components. A component expressed in the plural form may be implemented as a single component, and a component expressed in the singular form may be implemented as multiple components.

[0058] The drawings or flowcharts described herein illustrate example methods that may be implemented according to the principles of the present disclosure, and various modifications may be made to the methods illustrated in the flowcharts of the present disclosure. For example, although illustrated as a series of steps, various steps in each drawing or flowchart may overlap, occur in parallel, occur in a different order, or be repeated. In other examples, any step may be omitted or replaced with another step.

[0059] The process of the flowchart may be performed by a device. One or more of the steps of the　flowchart can be implemented by one or more processors / computer programs executing　instructions to perform the noted functions.

[0060] The methods and apparatuses proposed in the embodiments of the present disclosure may be disclosed in connection with drawings disclosing flowcharts to illustrate example methods that may be implemented according to the principles of the present disclosure. Such flowcharts may contain different branches and / or sub-branches. It is understood that the principles of the present disclosure do not only contain the combination of all branches / sub-branches disclosed in the embodiment, but the present disclosure also contains at least one isolated branch / isolated sub-branch, in particular to a single branch / single sub-branch.

[0061] The methods and apparatuses proposed in the embodiments of the present disclosure are not limited to each embodiment individually, but may also be applied in combination of all or some of the embodiments proposed in the disclosure. Therefore, the embodiments of the present disclosure may be modified and applied without significantly departing from the scope of the present disclosure, as would be understood by those skilled in the art.

[0062] In this case, even if certain wordings are described differently across embodiments, they may be used interchangeably or in substitution or in combination if their underlying concepts are equivalent. For example, for the same or equivalent concept, even if one embodiment uses the expression "A" and another embodiment uses the expression "B", such expressions may be understood interchangeably, in substitution, or in combination.

[0063] The terms used in the following description to refer to access nodes, network entities, messages, interfaces between network entities, various types of identification information, and the like, are provided merely for the convenience of explanation by way of example. Therefore, the present disclosure is not limited to the terms describedherein, and other terms having equivalent technical meanings may also be used. Such terms may also be interchangeable with terms defined in any 3rd generation partnership project　(3GPP) technical specifications (TS) or similar technical specifications, e.g., from the European telecommunications standards institute (ETSI), where appropriate.

[0064] Hereinafter, a base station (BS) is an entity that allocates resources to terminals, and may be at least one of a gNode B, an eNode B, a Node B, a wireless access unit, a BS controller, or a node on a network.

[0065] Furthermore, the base station of the present disclosure may include a split architecture comprising a central unit (CU) and a distributed unit (DU). In this structure, the CU is configured to process the higher layers of the control and user planes, while the DU is configured to process lower-layer radio resource functions. The embodiments of the present disclosure may be equally applicable to 5th generation (5G) base station architectures in which such CU and DU functional splits are implemented.

[0066] A terminal may include a user equipment (UE), a mobile station (MS), a cellular phone, a smartphone, a computer, a tablet, a wearable device, an Internet of Things (IoT) device, or any other device / system capable of performing communication functions.

[0067] In the disclosure, a downlink (DL) refers to a radio link through which a BS transmits a signal to a terminal, and an uplink (UL) refers to a radio link through which a terminal transmits a signal to a BS.

[0068] Furthermore, hereinafter, 5G mobile communication technologies (e.g., 5G new radio (NR)), 6th generation (6G) mobile communication technologies may be described by way of example, but the embodiments of the present disclosure may also be applied to other communication systems having similar technical backgrounds or channel types. For example, newly evolved mobile communication systems developed after 5G and 6G may be included. Furthermore, based on determinations by those skilled in the art, the embodiments of the present disclosure may also be applied to other communication systems (e.g., Wi-Fi systems) through some modifications without significantly departing from the scope of the present disclosure

[0069] In the following description, the terms physical channel and signal may be used interchangeably with data or control signal. For example, the term physical downlink shared channel (PDSCH) refers to a physical channel through which data is transmitted, but the term PDSCH may also be used to refer to the data itself. That is, in the present disclosure, the expression "transmit a physical channel" may be interpreted as being equivalent to the expression "transmit data or a signal via a physical channel."

[0070] Hereinafter, in the context of the present disclosure, higher layer signaling may refer to signaling corresponding to at least one or any combination of the following: master information block (MIB), system information block (SIB) or SIB M (M = 1, 2, ...), RRC, or MAC control element (CE), or a non-access stratum (NAS) signaling message, or an application layer message. The RRC signaling message may be referred to as Layer 3 (L3) signaling.

[0071] In addition, L1 signaling may refer to signaling corresponding to at least one or any combination of signaling techniques using the at least one or any combination of the following physical layer channels or signaling: physical downlink control channel (PDCCH), DCI, UE-specific DCI, group-common DCI, common DCI, scheduling DCI (e.g., DCI used for scheduling downlink or uplink data), non-scheduling DCI (e.g., DCI not used for scheduling downlink or uplink data) physical uplink control channel (PUCCH), or uplink control information (UCI). The L1 signaling message may be referred to as a physical layer signaling.

[0072] Hereinafter, the expression that information is configured by the BS, as used in the present disclosure or claims, may, in context, be understood to mean that the terminal receives the corresponding information from the BS via a physical layer signaling or a higher layer signaling. Such an expression may be replaced with other terms having the same or substantially equivalent meaning.

[0073] Unless defined differently, all terms (including technical terms or scientific terms) used in this disclosure have the same meaning as those understood by those skilled in the art in this disclosure. Common terms, as defined in dictionaries, are interpreted as having meanings consistent with the context in the relevant technical fields, and should not be interpreted in an idealized or overly formal way unless explicitly defined in this disclosure.

[0074] Herein, it will be understood that each block of flowchart illustrations, and combinations of blocks in the flowchart illustrations, may be performed based on computer program instructions. These computer program instructions may be loaded collectively onto at least one processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which perform through any one of, or in any combination of, the at least one processor of the computer or other programmable data processing apparatus, create means for performing the functions specified in the flowchart block(s). These computer program instructions may also be stored in a non-transitory computer usable or computer-readable memory that may direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer usable or computer-readable memory produce an article of manufacture including instruction means that perform the function specified in the flowchart block(s). The computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable data processing apparatus to produce a computer executed process such that the instructions that perform on the computer or other programmable data processing apparatus provide steps for executing the functions specified in the flowchart block(s).

[0075] Further, each block may represent a module, segment, or portion of code, which includes one or more executable instructions for executing the specified logical function(s). It should also be noted that in some alternative implementations, the functions noted in the blocks may occur out of the order. For example, two blocks(or functions) shown in succession may in fact be performed substantially concurrently or the blocks may sometimes be performed in the reverse order, depending upon the functionality involved.

[0076] As used in embodiments of the disclosure, a "~unit / module" may refer to a software element or a hardware element, such as a field programmable gate array (FPGA) or an application specific integrated circuit (ASIC), which performs a predetermined function. However, the term including the word "~unit / module" does not always have a meaning limited to software or hardware. The "~unit / module" may be constructed either to be stored in an addressable storage medium or to execute one or more processors. Therefore, the "~unit / module" includes, for example, software elements, object-oriented software elements, components such as class elements and task elements, processes, functions, properties, procedures, sub-routines, segments of a program code, drivers, firmware, micro-codes, circuits, data, database, data structures, tables, arrays, and parameters. The components and functions provided by the "~unit / module" may be either combined into a smaller number of components and a "~unit / module," or divided into additional components and a "~unit / module." Moreover, the components and "~units / modules" may be implemented to reproduce one or more central processing units (CPUs) within a device or a security multimedia card. Further, in the embodiments, the "쪟unit / module" may include one or more processors.

[0077] The entirety of the one or more computer programs may be stored in a single memory device or the one or more computer programs may be divided with different portions stored in different multiple memory devices.

[0078] Any of the functions or operations described herein can be processed by one processor or a combination of processors. The one processor or the combination of processors is circuitry performing processing and includes circuitry like an application processor (AP, e.g. a CPU), a communication processor (CP, e.g., a modem), a graphics processing unit (GPU), a neural processing unit (NPU) (e.g., an artificial intelligence (AI) chip), a Wi-Fi chip, a Bluetooth® chip, a global positioning system (GPS) chip, a near field communication (NFC) chip, connectivity chips, a sensor controller, a touch controller, a finger-print sensor controller, a display driver integrated circuit (IC), an audio CODEC chip, a universal serial bus (USB) controller, a camera controller, an image processing IC, microprocessors, microcontrollers, digital　signal processors, FPGA, ASIC, a microprocessor unit (MPU), a system on chip (SoC), an IC, or the like. The one processor or the combination of processors executes instructions that can be stored in a memory, such as the　operating system, in order to control the overall operation of the device.　Also, the one processor or the combination of processors is also capable of executing other processes and programs　resident in the memory, such as processes for the disclosure.

[0079] It will be appreciated that various embodiments of the disclosure according to the claims and description in the specification can be realized in the form of hardware, software or a combination of hardware and software.

[0080] Any such software may be stored in non-transitory computer readable storage media. The non-transitory computer readable storage media store one or more computer programs (software modules), the one or more computer programs include computer-executable instructions that, when executed by one or more processors of an electronic device individually or collectively, cause the electronic device to perform a method of the disclosure. Additionally, or alternatively, such software may be a computer program [product] comprising instructions which, when executed by one or more processors of an electronic device individually or collectively, cause the electronic device to perform a method of the disclosure.

[0081] Any such software may be stored in the form of volatile or non-volatile storage such as, for example, a storage device like read only memory (ROM), whether erasable or rewritable or not, or in the form of memory such as, for example, random access memory (RAM), memory chips, device or integrated circuits or on an optically or magnetically readable medium such as, for example, a compact disk (CD), digital versatile disc (DVD), magnetic disk or magnetic tape or the like. It will be appreciated that the storage devices and storage media are various embodiments of non-transitory machine-readable storage that are suitable for storing a computer program or computer programs comprising instructions that, when executed, implement various embodiments of the disclosure. Accordingly, various embodiments of the present disclosure may provide a program comprising code for implementing apparatus or a method as claimed in any one of the claims of this specification and a non-transitory machine-readable storage storing such a program.

[0082] Hereinafter, the determination of priority between A and B in the present disclosure may refer to various actions such as selecting the one having a higher priority based on a predefined priority rule and performing an operation corresponding thereto, or omitting or dropping an operation corresponding to the one having a lower priority.

[0083] Figures 1-7 discussed below and various embodiments for describing the principles of the present disclosure in this patent document are only for illustration and should not be interpreted as limiting the scope of the disclosure in any way. Those skilled in the art will understand that the principles of the present disclosure can be implemented in any suitably arranged system or device.

[0084] Fig. 1 is an exemplary system architecture 100 of system architecture evolution (SAE). User equipment (UE) 101 is a terminal device for receiving data. An evolved universal terrestrial radio access network (E-UTRAN) 102 is a radio access network, which includes a macro base station (eNodeB / NodeB) that provides UE with interfaces to access the radio network. A mobility management entity (MME) 103 is responsible for managing mobility context, session context and security information of the UE. A serving gateway (SGW) 104 mainly provides functions of user plane, and the MME 103 and the SGW 104 may be in the same physical entity. A packet data network gateway (PGW) 105 is responsible for functions of charging, lawful interception, etc., and may be in the same physical entity as the SGW 104. A policy and charging rules function entity (PCRF) 106 provides quality of service (QoS) policies and charging criteria. A general packet radio service support node (SGSN) 108 is a network node device that provides routing for data transmission in a universal mobile telecommunications system (UMTS). A home subscriber server (HSS)109 is a home subsystem of the UE, and is responsible for protecting user information including a current location of the user equipment, an address of a serving node, user security information, and packet data context of the user equipment, etc.

[0085] Fig. 2 is an exemplary system architecture 200 according to various embodiments of the present disclosure. Other embodiments of the system architecture 200 can be used without departing from the scope of the present disclosure.

[0086] User equipment (UE) 201 is a terminal device for receiving data. A next generation radio access network (NG-RAN) 202 is a radio access network, which includes a base station (a gNB or an eNB connected to 5G core network 5GC, and the eNB connected to the 5GC is also called ng-gNB) that provides UE with interfaces to access the radio network. An access control and mobility management function entity (AMF) 203 is responsible for managing mobility context and security information of the UE. A user plane function entity (UPF) 204 mainly provides functions of user plane. A session management function entity SMF 205 is responsible for session management. A data network (DN) 206 includes, for example, services of operators, access of Internet and service of third parties.

[0087] The text and drawings are provided as examples only to help understand the present disclosure. They should not be interpreted as limiting the scope of the present disclosure in any way. Although certain embodiments and examples have been provided, based on the disclosure herein, it will be apparent to those skilled in the art that changes may be made to the illustrated embodiments and examples without departing from the scope of the present disclosure.

[0088] Before introducing the specific content, some assumptions and some definitions of the present disclosure are given below.

[0089] > The message names in the present disclosure are only examples, and other message names can also be used.

[0090] > The "first", "second", etc. included in the message names of the present disclosure are only examples of messages and do not represent the execution order.

[0091] > Detailed descriptions of steps irrelevant to the present disclosure are omitted in the present disclosure.

[0092] > In the present disclosure, the steps in each process can be executed in combination with each other or individually. The execution steps of each process are only examples and do not exclude other possible execution orders.

[0093] > In the present disclosure, the base station can be a 6G base station, a 5G base station (such as gNB, ng-eNB), a 4G base station (such as eNB), or other types of access nodes.

[0094] > In the present disclosure, when the cell accessed by the user equipment switches from one cell to another, the behavior may be called a handover or a cell switch. In the following description, the handover and the cell switch have the same meaning.

[0095] > In the present disclosure, user, user equipment, user terminal and user terminal equipment are equivalent.

[0096] > In the present disclosure, the method involved can be used to reduce the delay and can also be used to reduce interruptions.

[0097] Nodes involved in the present disclosure:

[0098] > First node: user equipment. For example, the equipment may be a mobile phone or a relay node.

[0099] > Second node: a base station, or a centralized unit of a base station, or a control plane part of a centralized unit of a base station. In one example, the base station may be the source node (or source base station) of user equipment for handover. In another example, the base station may be the master node (or master base station) in dual connectivity.

[0100] > Third node: a base station, or a centralized unit of a base station, or a control plane part of a centralized unit of a base station, which is a node different from the second node, or the distributed unit of a base station. In one example, the base station may be a target base station (or target node) of user equipment for handover, or a candidate base station (or candidate node) for handover. In another example, the base station may be a secondary base station (or secondary node) in dual connectivity.

[0101] The cell served by the above-mentioned second / third / fourth nodes may be a special cell (SpCell). In one example, the special cell may be a special cell of a primary cell group (SpCell of a primary cell group) or a Primary cell. (PCell). In another example, the special cell may be a special cell of secondary cell group or a primary secondary cell (PSCell: primary secondary cell group cell). The cells served by the above-mentioned second / third / fourth nodes may also be a secondary cell (SCell). When the cell served by the above is a special cell of the user equipment, the special cell can be the source cell (source primary cell, or source PSCell) of the user equipment (first node), or it can be the target cell (target primary cell, or target PSCell) of the user equipment (first node), or it can be a candidate cell (candidate primary cell, or candidate PSCell) of the user equipment (first node) for handover.

[0102] The base station involved in the above-mentioned second / third / fourth nodes may be, for example, one of the following types (and other types that can be used for user terminal access are not excluded):

[0103] > An LTE base station;

[0104] > A 5G base station;

[0105] > A 6G base station;

[0106] > An NTN base station;

[0107] > A HAPS base station;

[0108] > A Drone base station;

[0109] > WIFI Access Point.

[0110] The numbers of the following steps do not represent the order in which the steps are executed, and the following steps can be executed individually or in combination with each other.

[0111] In a mobile network, the user equipment is handed over between different cells.

[0112] During handover, the communication of user equipment (data transmission with the network) will be interrupted. There are multiple reasons for the interruption, such as the user equipment's processing of handover signaling, hardware adjustment, application of the configuration of the new cell, synchronization with the new cell (uplink and / or downlink synchronization), etc. In order to reduce the delay or communication interruption of user terminal during handover, many enhanced handover mechanisms have been proposed. For example, a mechanism based on L1 / L2 triggered mobility (LTM) can effectively reduce interruptions during user handover. Specifically, during the LTM cell switch process, the network side will trigger the user equipment for handover through layer 1 or layer 2 signaling. Furthermore, before triggering the user equipment to perform handover, the user equipment can also obtain the time advance information required to access the target cell in advance, such as through measurement by the user terminal or transmitting a random access signal in advance. Through LTM, the communication interruption of the user equipment during handover can be reduced. Nonetheless, interruptions in the handover process are still inevitable, and such interruptions are related to the capabilities of the user equipment, such as the inability of the user equipment to fast process the signaling for handover. Therefore, based on the existing handover mechanism, further reducing interruptions during the handover process of user equipment is still an urgent problem that needs to be solved.

[0113] An embodiment of the present disclosure provides a method performed by a first node in a communication system, the method comprising: receiving a first message from a second node, the first message including candidate configuration information that includes first configuration information and second configuration information; processing the received candidate configuration information; wherein the first configuration information includes minimum configuration information required for data transmission after the first node accesses a target cell or a candidate cell; wherein the second configuration information includes configuration information not included in the first configuration information and required by the first node for data transmission in the target cell or the candidate cell; wherein the processing includes processing the first configuration information before receiving the handover signaling and processing the second configuration information after receiving the handover signaling.

[0114] Embodiments of the present disclosure provide a method performed by a second node in a communication system, the method comprising: receiving a first response message from a third node, the first response message including candidate configuration information that includes first configuration information and second configuration information; transmitting a first message including the candidate configuration information to a first node; wherein the first configuration information includes minimum configuration information required for data transmission after the first node accesses a target cell or a candidate cell; wherein the second configuration information includes configuration information not included in the first configuration information and required by the first node for data transmission in the target cell or the candidate cell; wherein the first configuration information is processed by the first node before receiving handover signaling, and the second configuration information is processed by the first node after receiving handover signaling.

[0115] An embodiment of the present disclosure provides a method performed by a third node in a communication system, the method comprising: receiving a first request message from a second node, the first request message requesting to configure a target cell or candidate cell of a first node; transmitting a first response message to the second node, the first response message including candidate configuration information that includes first configuration information and second configuration information; wherein the candidate configuration information is transmitted by the second node to the first node; wherein the first configuration information includes minimum configuration information required for data transmission after the first node accesses a target cell or a candidate cell; wherein the second configuration information includes configuration information not included in the first configuration information and required by the first node for data transmission in the target cell or the candidate cell; wherein the first configuration information is processed by the first node before receiving handover signaling, and the second configuration information is processed by the first node after receiving handover signaling.

[0116] Through the above method, the fast processing of candidate configuration information in the handover process of user equipment can be realized. For example, the user equipment can process the configuration information required for being used after handover in advance before receiving the cell switch command, thus reducing the communication interruption time or handover delay in the handover process.

[0117] The present disclosure proposes a method for reducing communication interruption during handover. The method reduces the time of operations related to handover (such as handover signaling processing, hardware configuration, etc.) by changing the configuration method of configuring user equipment for handover, thereby reducing communication interruption during handover. Specifically, the method of the present disclosure reduces the communication interruption of user equipment in two aspects: 1) reducing the signaling processing delay of user equipment; 2) reducing the delay for the user equipment to configure the target cell or candidate cell. For the first aspect, during the handover process, the user equipment needs to obtain configuration information of the target cell or candidate cell, and one example of these configuration information is a Radio Resource Control (RRC) message. In order to obtain the configuration information, the user equipment needs to parse the received configuration information (such as RRC message), such as decoding Abstract Syntax Notation One (ASN.1), a validity check, and a compliance check. These processes will consume time. If the user equipment performs these operations after receiving the handover command, it will cause interruption in the handover process or increase handover delay. In addition, if there are more cells included in the configuration information, the delay for the user equipment to process these signaling will be greater. In order to reduce this delay, the method proposed by the present disclosure changes the method of providing configuration information. Specifically, the candidate configuration information corresponding to the target cell or candidate cell of the user equipment is divided into two parts, the first part is minimum configuration information required for data transmission after the user equipment switches to a target cell or a candidate cell, and the second part is configuration information required by the user equipment for data transmission with the target cell or the candidate cell. The method for processing the configuration information by the user equipment is to first perform fast processing or early processing on the first part, and the processing performed includes the ASN.1 decoding, the validity check, and the compliance check. After receiving the handover signaling, the second part is processed. The beneficial effect of this method of separately processing candidate configuration information is that when the user equipment receives the handover signaling, it can immediately use the first part of the configuration information of the target cell or candidate cell to perform handover, and perform data transmission in the target cell or candidate cell, thereby reducing communication interruption during handover or the handover delay. Regarding the second aspect, during the handover process, in order to access the target cell or candidate cell, the user equipment needs to adjust the hardware (such as adjustment of the radio frequency unit, application of configuration information of the target cell or candidate cell, etc.). These operations will lead to communication interruption or the handover delay. These interruptions are due to the fact that the user equipment needs to receive handover signaling before performing these operations. The method proposed by the present disclosure allows the user equipment to perform these operations in advance (such as applying some configuration information of candidate cells or target cells in advance), and then quickly communicate with the network after receiving handover signaling.

[0118] In the present disclosure, fast processing and early processing are equivalent, fast RRC processing, early RRC processing, early processing of configuration information, and early processing of RRC information are equivalent, indicating that the user equipment processes configuration information before a cell switch (or cell handover), the processing includes at least one of the following: the ASN.1 decoding, the validity check, the compliance check.

[0119] In order to implement this method, the present disclosure proposes the following configuration process, as shown in Figure 3:

[0120] Step 1-1: a second node (such as a source node, a source master node, a master node, a secondary node) transmits a first configuration message (for example, also called a first message or other message name, the present disclosure does not place any restrictions on the name of the message) to a first node (such as user equipment). The function of this message is to provide the user equipment with the configuration information of the target cell or candidate cell for handover. After receiving the message, the user equipment will perform the processing of the configuration information of the target cell or candidate cell, and / or configure the target cell or candidate cell. The beneficial effect of this message is to help the user equipment determine the configuration required to access the target cell or candidate cell, analyze the configuration information in advance, and reduce the communication interruption or handover delay caused by configuration information processing during cell handover. The message includes configuration information of one or more target cells or candidate cells configured for the user equipment, and the configuration message includes at least one of the following information:

[0121] > fast processing indication information, which indicates the information required by the user equipment to perform fast processing (or early processing) of the configuration information of the target cell or candidate cell. After receiving this information, the user equipment can determine whether it can perform fast processing or early processing on the configuration information of the target cell or candidate cell, thereby reducing the communication interruption or handover delay during handover. The information includes at least one of the following:

[0122]

[0123] >> first indication information, which indicates the user equipment to perform early processing or fast processing on the following "first configuration information."

[0124] >> first candidate configuration threshold information, which indicates a maximum number of candidate configurations for the user equipment to perform fast configuration information processing (or early processing of configuration information). That is, when the number of candidate configurations is less than the number indicated by the threshold information, the user equipment can perform fast configuration information processing (or early processing of configuration information), and the configuration information is the following "first configuration information" and / or "second configuration information", otherwise, the user equipment cannot perform fast configuration information processing (or early processing of configuration information), or can only perform fast processing or early processing of the following "first configuration information".

[0125] >> first cell threshold information, which indicates a maximum number of cells for the user equipment to perform fast configuration information processing (or early processing of configuration information). That is, when the number of cells contained in the processed configuration information (or the sum of the number of configured serving cells and the number of cells contained in the candidate configuration information that has been processed) is less than the number indicated by the threshold information, the user equipment can perform fast configuration information processing (or early processing of configuration information), and the configuration information is the following "first configuration information" and / or "second configuration information", otherwise, the user equipment cannot perform fast configuration information processing (or early processing of configuration information).

[0126] >> first bearer threshold information, which indicates a maximum number of bearers for the user equipment to perform fast configuration information processing (or early processing of configuration information). That is, when the number of bearers contained in the processed configuration information (or the number of configured bearers and the number of bearers contained in the candidate configuration information that has been processed) is less than the number indicated by the threshold information, the user equipment can perform fast configuration information processing (or early processing of configuration information), and the configuration information is the following "first configuration information" and / or "second configuration information", otherwise, the user equipment cannot perform fast configuration information processing (or early processing of configuration information)

[0127] >> second cell threshold information, which indicates a number of cells for the user equipment to stop processing the second configuration information (or third configuration information), that is, when the number of cells contained in the configuration information processed by the user equipment (or the sum of the number of configured serving cells and the number of cells contained in the candidate configuration information that has been processed) is less than the number indicated by the threshold information, the user equipment can perform the fast processing (or early processing) of the following "first configuration information" and "second configuration information", or can perform the fast processing of the following "third configuration information", otherwise, the user equipment needs to stop processing the following "second configuration information" or "third configuration information" (such as only processing the following "first configuration information").

[0128] >> second bearer threshold information, which indicates that a number of bearers for the user equipment to stop processing the second configuration information, that is, when the number of bearers contained in the configuration information processed by the user equipment (or the sum of the number of configured bears and the number of bears contained in the candidate configuration information that has been processed) is less than the number indicated by the threshold information, the user equipment can perform the fast processing (or early processing) of the following "first configuration information" and "second configuration information", or can perform the fast processing of the following "third configuration information", otherwise, the user equipment needs to stop processing the following "second configuration information" or "third configuration information" (such as only processing the following "first configuration information").

[0129] >> first signal threshold information, which indicates a signal threshold of a serving cell for the user equipment to perform fast configuration information processing (or early processing of configuration information), that is, when the measurement result of the serving cell is less than the threshold indicated by the information, the user equipment can perform fast configuration information processing (or early processing of configuration information), and the configuration information is the following "first configuration information" and / or "second configuration information" or "third configuration information", otherwise, the user equipment cannot perform fast configuration information processing (or early processing of configuration information);

[0130] >> second signal threshold information, which indicates a signal threshold of a target cell or a candidate cell for the user equipment to perform fast configuration information processing (or early processing of configuration information), that is, when the measurement result of the target cell or candidate cell is greater than the threshold indicated by the information, the user equipment can perform fast configuration information processing (or early processing of configuration information), and the configuration information is the following "first configuration information" and / or "second configuration information" and / or "third configuration information", otherwise, the user equipment cannot perform fast configuration information processing (or early processing of configuration information);

[0131] >> first release threshold information, which indicates threshold information required for the user equipment to release configuration information. For example, when the measurement result of the target cell or candidate cell is less than the threshold indicated by the information, the user equipment can release configuration information corresponding to the target cell or candidate cell, the configuration information is the following "first configuration information" and / or "second configuration information" and / or "third configuration information".

[0132] > candidate configuration information, which includes configuration information of one or more target cells or candidate cells. when the user equipment switches to one of the target cells or candidate cells, it will perform data transmission according to the configuration information corresponding to the target cell or candidate cell contained in the candidate configuration information. This information includes at least one of the following information: number information of cells in all candidate configurations, number information of bears in all candidate configurations, and one or more candidate configurations. Each candidate configuration is related to one target cell or candidate cell, and may include configuration information of one or more cells or configuration information of one or more bearers. Each candidate configuration includes at least one of the following information:

[0133] >> candidate configuration identification information, which identifies a candidate configuration corresponding to one target cell or candidate cell. In one example, the candidate configuration only contains the configuration information of one cell. In another example, the candidate configuration contains configuration information of one or more cells, such as configuration information of one cell group.

[0134] >> cell number information indicating a number of cells included in one candidate configuration information.

[0135] >> bearer number information indicating a number of bearers included in one candidate configuration information.

[0136] >> first configuration information, the configuration information includes configuration information required to be used by the user equipment after accessing the target cell or candidate cell, or includes minimum configuration information required for the user equipment to perform data transmission quickly after accessing a target cell or a candidate cell. This information can be named primary / master configuration, or minimum configuration, or essential configuration, or primary cell / special cell configuration, or other names. In one example, the configuration information is the configuration information required by the user equipment to transmit the first data packet. In another example, the configuration information is the configuration information required by the user equipment to transmit one or more data packets with a high priority. In one embodiment, the configuration information contained in the information is the configuration information used by the user equipment for data transmission of one or more specific radio bearers (such as the first signaling radio bearer, SRB1, data radio bearer, DRB) after accessing the target cell or the candidate cell. In one embodiment, the configuration information contained in this information is the configuration information of one or more cells required to be used by the user equipment after accessing the target cell or candidate cell. These configuration information ensures that the user equipment can quickly perform data transmission with the network (such as a base station) after accessing the target cell or candidate cell, thereby reducing communication interruption or handover delay during the handover process. In one example, the information contained in this information may refer to the information contained in the RRC reconfiguration message (RRCReconfiguration) in 3GPP TS 38.331. The information includes at least one of the following information:

[0137] >>> first configuration identification information, which identifies the above-mentioned first configuration information.

[0138] >>> first cell configuration information. The cells configured by this information may be one or more cells, and the one or more cells are cells required to be configured when the user equipment performs data transmission after accessing the target cell or candidate cell. In one example, if the information includes the configuration of one cell, the cell is the target cell or candidate cell for handover (such as the primary cell, the primary cell of the primary cell group, the primary cell of the secondary cell group). In another example, if the information includes the configuration of multiple cells, the multiple cells are the target cells or candidate cells for handover (such as the primary cell, the primary cell of the primary cell group, the primary cell of the secondary cell group) and one or more other cells associated with the target cell or candidate cell (such as the secondary cell, the secondary cell of the primary cell group, the secondary cell of the secondary cell group). In another example, if the information includes the configuration of multiple cells, the multiple cells are target cells or candidate cells for handover (such as the primary cell, the primary cell of the primary cell group, the primary cell of the secondary cell group) and one or more other activated cells associated with the target cell or candidate cell (such as the secondary cell, the secondary cell of the primary cell group, the secondary cell of the secondary cell group). For one cell, the information includes at least one of the following information:

[0139] >>>> identification information of a cell, such as a physical cell identifier (PCI), a cell index, a cell global identifier (CGI), etc.

[0140] >>>> identification information of user equipment, such as a cell-radio network temporary Identifier (C-RNTI).

[0141] >>>> configuration information of a random access, which includes configuration information required by the user equipment to perform the random access in the target cell or candidate cell, such as resource configuration information of a random access and preamble indication information required for random access.

[0142] >>>> configuration information of a physical channel, which information includes configuration information of an uplink channel and / or configuration information of a downlink channel, the uplink channel is an uplink control channel, or an uplink shared channel, the downlink channel is downlink control information, or a downlink shared channel. In one example, this information is included in the configuration information of the bandwidth part. In one example, the configuration information contained in this information can refer to the configuration information (pdcch-config) of the physical downlink control channel (PDCCH), the configuration information (pdsch-config) of the physical downlink shared channel (PDSCH), the configuration information (pucch-config) of the physical uplink control channel (PUCCH), the configuration information (pusch-config) of the physical uplink shared channel (PUSCH) in 3GPP TS38.331.

[0143] >>>> configuration information of an uplink grant, which includes the configuration information of resources required when the user equipment transmits uplink data after accessing the target cell or candidate cell, such as indication information of the modulation and coding mode, resource configuration information, and period information., time domain location information, etc. In one example, the configuration information contained in this information can refer to the information contained in ConfiguredGrantConfig in 3GPP TS38.331;

[0144] >>>> configuration information of a downlink grant, which includes configuration information of resources required when the user equipment receives downlink data after accessing the target cell or candidate cell, such as indication information of the modulation and coding mode, resource configuration information, and period information., time domain location information, etc.

[0145] >>> first bearer configuration information. The configuration information includes configuration information of one or more radio bearers. In one example, if the information includes configuration information of one radio bearer, the bearer may be SRB1. In another example, if the Information includes configuration information of multiple radio bearers, which may be signaling radio bearers and data radio bearers. The information includes at least one of the following:

[0146] >>>> identification information of a radio bearer (RB), such as RB ID, SRB ID, DRB ID.

[0147] >>>> configuration information of a Packet Data Convergence Protocol layer (PDCP), which includes indication information of a PDCP sequence number, configuration information of header compression, configuration information of integrity protection, etc. In one example, this information can be seen from PDCP configuration information (pdcp-config) in 3GPP TS 38.331

[0148] >>>> configuration information of a Radio Link Control (RLC) bear, which includes RLC configuration information, identification information of a logical channel, configuration information of a logical channel, etc. In one example, this information can be seen from RLC-BearerConfig in 3GPP TS 38.331.

[0149] >>> first Medium access control (MAC) configuration information, which includes configuration information of the MAC layer, such as configuration information of scheduling request (SR), configuration information of buffer status report (BSR), configuration information of discontinuous reception (DRX), etc. In one example, this information can be seen from MAC-CellGroupConfig in 3GPP TS 38.331

[0150] >> first configuration indication information, which is used to indicate information required to process the above-mentioned "first configuration information". After receiving this information, the user equipment can determine the conditions and / or required overhead required to process the above-mentioned "first configuration information", and then decide whether to perform early processing on the above-mentioned "first configuration information". The information includes at least one of the following information:

[0151] >>> first cell number information, which indicates a number of cells configured in the above-mentioned "first configuration information". Based on this information, the user equipment can determine whether to perform early processing the above-mentioned "first configuration information".

[0152] >>> first bearer number information, which indicates a number of bearers configured in the above-mentioned "first configuration information". Based on this information, the user equipment can determine whether to perform early processing on the above-mentioned "first configuration information".

[0153] >>> first processing indication information, which indicates whether the user equipment performs early processing on the above-mentioned "first configuration information".

[0154] >>> first processing priority indication information, which indicates a priority of the user equipment to perform early processing on the above-mentioned "first configuration information". For example, this information is a number indicating the priority, the smaller the number, the higher (or low) the priority.

[0155] >>> first release priority indication information, which indicates a priority of the user equipment to release the above-mentioned "first configuration information". For example, this information is a number indicating the priority, the smaller the number, the higher (or lower) priority.

[0156] >>> first early configuration indication information, which indicates whether the user equipment applies the configuration in the above-mentioned "first configuration information" in advance. In one example, if the information indicates that the user equipment applies it in advance, the user equipment can configure the cell included in the above-mentioned "first configuration information" as a serving cell, such as a secondary cell. When the user equipment switches to the target cell or candidate cell configured in the above-mentioned "first configuration information", it can accelerate the application of the configuration of the cell, thereby reducing the communication interruption or handover delay during handover. In one embodiment, the information indicates a state of the cell configured in the "first configuration information", that is, the user equipment applies the configuration information on the cell in the "first configuration information" (such as layer 1 / layer 2 configuration parameters) and / or related hardware configuration, and further, in this state, the user equipment does not perform data transmission and / or signal processing in the cell, and the state is a state before the user equipment switches to the cell.

[0157] >>> third signal threshold information, which indicates the signal threshold for the user equipment to perform early processing on the above-mentioned "first configuration information". In one example, the threshold is a threshold for the measurement result of the serving cell, that is, when the measurement result of the serving cell is less than the threshold indicated by the information, the user equipment performs early processing on the above-mentioned "first configuration information". In another example, the threshold is a threshold for the measurement result of the target cell or candidate cell. That is, when the measurement result of the target cell or candidate cell is greater than the threshold indicated by the information, the user equipment performs early processing on the above-mentioned "first configuration information".

[0158] >>> second release threshold information, which indicates threshold information required by the user equipment to release configuration information. For example, when the measurement result of the target cell or candidate cell is less than the threshold indicated by the information, the user equipment can release configuration information corresponding to the target cell or candidate cell, wherein the configuration information is the following "first configuration information".

[0159] >> second configuration information, which includes configuration information required by the user equipment for data transmission in the target cell or the candidate cell and not included in the above-mentioned "first configuration information". That is, "second configuration information" and the "first configuration information" can generate complete configuration information required by the user equipment after accessing the target cell or the candidate cell. In one example, the second configuration information may be an incremental configuration or a differential (delta) configuration of the above-mentioned first configuration information. When switching cells, the user equipment does not need to perform fast processing or early processing on the second configuration information, that is, it can process the configuration information after accessing the target cell or candidate cell, and then perform data transmission based on the configuration information. This information can be named secondary configuration, or complementary configuration, or non-essential configuration, or secondary cell configuration, or other names. After receiving this information, the user equipment will process the "second configuration information" after processing the above-mentioned "first configuration information". In one example, the user equipment processes the above-mentioned "first configuration information" before switching cells, and then processes the above-mentioned "second configuration information" after switching to the target cell or candidate cell. The beneficial effect of this configuration information is to reduce the processing delay of the user equipment on the configuration information during handover and avoid communication interruption or handover delay during the handover process. In one example, the information contained in this information may refer to the information contained in the RRC reconfiguration message (RRCReconfiguration) in 3GPP TS 38.331. The information includes at least one of the following information:

[0160] >>> second configuration identification information, which identifies the second configuration information.

[0161] >>> second cell configuration information. The cell configured by this information may be one or more cells. In one example, this information includes configuration information not included in the above-mentioned "first cell configuration information". In one example, the one or more cells are secondary cells (such as secondary cells of the primary cell group, secondary cells of the secondary cell group). In another example, the one or more cells are deactivated secondary cells (such as secondary cells of the primary cell group, secondary cells of the secondary cell group). For the information contained in this information, please refer to the description in the above "first cell configuration information".

[0162] >>> second bearer configuration information. The configuration information includes configuration information of one or more radio bearers. In one example, this information includes configuration information not included in the above-mentioned "first bearer configuration information". For the information contained in this information, please refer to the description in the above "first bearer configuration information".

[0163] >>> second medium access control configuration information, which includes configuration information of the MAC layer. In one example, this information includes configuration information not included in the above-mentioned "first medium access control configuration information". The information included in this information can be referred to as described in the above " first Medium access control configuration information ".

[0164] >> second configuration indication information, which is used to indicate information required to process the above-mentioned "second configuration information". After receiving this information, the user equipment can determine the overhead required to process the above-mentioned "second configuration information", and then decide whether to perform early processing on the above-mentioned "second configuration information". The information includes at least one of the following information:

[0165] >>> second cell number information, which indicates a number of cells configured in the above-mentioned "second configuration information". Based on this information, the user equipment can determine whether to perform early processing the above-mentioned "second configuration information";

[0166] >>> second bearer number information, which indicates a number of bearers configured in the above-mentioned "second configuration information". Based on this information, the user equipment can determine whether to perform early processing on the above-mentioned "second configuration information".

[0167] >>> second processing indication information, which indicates whether the user equipment performs early processing on the above-mentioned "second configuration information".

[0168] >>> second processing priority indication information, which indicates a priority of the user equipment to perform early processing on the above-mentioned "second configuration information". For example, this information is a number indicating the priority, the smaller the number, the higher (or low) the priority.

[0169] u >>> second release priority indication information, which indicates a priority of the user equipment to release the above-mentioned "second configuration information". For example, this information is a number indicating the priority, the smaller the number, the higher (or lower) priority.

[0170] >>> second early configuration indication information, which indicates whether the user equipment applies the configuration in the above-mentioned "second configuration information" in advance. In one example, if the information indicates that the user equipment applies it in advance, the user equipment can configure the cell included in the above-mentioned "second configuration information" as a serving cell, such as a secondary cell. When the user equipment switches to the target cell or candidate cell configured in the above-mentioned "second configuration information", it can accelerate the application of the configuration of the cell, thereby reducing the communication interruption or handover delay during handover. In one embodiment, the information indicates a state of the cell configured in the " second configuration information", that is, the user equipment applies the configuration information on the cell in the "second configuration information" (such as layer 1 / layer 2 configuration parameters) and / or related hardware configuration, and further, in this state, the user equipment does not perform data transmission and / or signal processing in the cell, and the state is a state before the user equipment switches to the cell.

[0171] >>> fourth signal threshold information, which indicates the signal threshold for the user equipment to perform early processing on the above-mentioned "second configuration information". In one example, the threshold is a threshold for the measurement result of the serving cell, that is, when the measurement result of the serving cell is less than the threshold indicated by the information, the user equipment performs early processing on the above-mentioned "second configuration information". In another example, the threshold is a threshold for the measurement result of the target cell or candidate cell. That is, when the measurement result of the target cell or candidate cell is greater than the threshold indicated by the information, the user equipment performs early processing on the above-mentioned "second configuration information".

[0172] >>> third release threshold information, which indicates threshold information required by the user equipment to release configuration information. For example, when the measurement result of the target cell or candidate cell is less than the threshold indicated by the information, the user equipment can release configuration information corresponding to the target cell or candidate cell, wherein the configuration information is the following "second configuration information".

[0173] >> third configuration information, which includes configuration information required by the user equipment after accessing the target cell or the candidate cell. This configuration information can be used by the user equipment to generate the complete configuration required after accessing the target cell or the candidate cell. In one example, the information contained in the information may be the merged configuration information of the "first configuration information" and the "second configuration information". The beneficial effect of this configuration information is to help the user equipment obtain the complete configuration required for handover, reduce the complexity of signaling design, thereby reducing the delay of signaling processing by the user equipment and reducing the communication interruption or handover delay. In one example, the information contained in this information may refer to the information contained in the RRC reconfiguration message (RRCReconfiguration) in 3GPP TS 38.331. The information includes at least one of the following information:

[0174] >>> third configuration identification information, which identifies the third configuration information.

[0175] >>> third cell configuration information. The cell configured by this information may be one or more cells. In one example, this information includes the configuration information in the above-mentioned "first cell configuration information" and "second cell configuration information". For the information contained in this information, please refer to the description in the above "first cell configuration information".

[0176] >>> third bearer configuration information. The configuration information includes configuration information of one or more radio bearers. In one example, this information includes the configuration information included in the above-mentioned "first bearer configuration information" and "second bearer configuration information". For the information contained in this information, please refer to the description in the above "first bearer configuration information".

[0177] >>> third medium access control configuration information, which includes configuration information of the MAC layer. In one example, this information includes the configuration information included in the above-mentioned "first medium access control configuration information" and "second medium access control configuration information". The information included in this information can be referred to as described in the above "first medium access control configuration information".

[0178] >> third configuration indication information, which is used to indicate information required to process the above-mentioned "third configuration information". After receiving this information, the user equipment can determine the overhead required to process the above-mentioned "third configuration information", and then decide whether to perform early processing on the above-mentioned "third configuration information". The information includes at least one of the following information:

[0179] >>> third cell number information, which indicates a number of cells configured in the above-mentioned "third configuration information". Based on this information, the user equipment can determine whether to perform early processing the above-mentioned "third configuration information";

[0180] >>> third bearer number information, which indicates a number of bearers configured in the above-mentioned "third configuration information". Based on this information, the user equipment can determine whether to perform early processing on the above-mentioned "third configuration information".

[0181] >>> third processing indication information, which indicates whether the user equipment performs early processing on the above-mentioned "third configuration information".

[0182] >>> third processing priority indication information, which indicates a priority of the user equipment to perform early processing on the above-mentioned "third configuration information". For example, this information is a number indicating the priority, the smaller the number, the higher (or low) the priority.

[0183] >>> third release priority indication information, which indicates a priority of the user equipment to release the above-mentioned "third configuration information". For example, this information is a number indicating the priority, the smaller the number, the higher (or lower) priority.

[0184] >>> third early configuration indication information, which indicates whether the user equipment applies the configuration in the above-mentioned "third configuration information" in advance. In one example, if the information indicates that the user equipment applies it in advance, the user equipment can configure the cell included in the above-mentioned "third configuration information" as a serving cell, such as a secondary cell. When the user equipment switches to the target cell or candidate cell configured in the above-mentioned "third configuration information", it can accelerate the application of the configuration of the cell, thereby reducing the communication interruption or handover delay during handover. In one embodiment, the information indicates a state of the cell configured in the " third configuration information", that is, the user equipment applies the configuration information on the cell in the "third configuration information" (such as layer 1 / layer 2 configuration parameters) and / or related hardware configuration, and further, in this state, the user equipment does not perform data transmission and / or signal processing in the cell, and the state is a state before the user equipment switches to the cell.

[0185] >>> fifth signal threshold information, which indicates the signal threshold for the user equipment to perform early processing on the above-mentioned "third configuration information". In one example, the threshold is a threshold for the measurement result of the serving cell, that is, when the measurement result of the serving cell is less than the threshold indicated by the information, the user equipment performs early processing on the above-mentioned "third configuration information". In another example, the threshold is a threshold for the measurement result of the target cell or candidate cell. That is, when the measurement result of the target cell or candidate cell is greater than the threshold indicated by the information, the user equipment performs early processing on the above-mentioned "third configuration information".

[0186] >>> fourth release threshold information, which indicates threshold information required by the user equipment to release configuration information. For example, when the measurement result of the target cell or candidate cell is less than the threshold indicated by the information, the user equipment can release configuration information corresponding to the target cell or candidate cell, wherein the configuration information is the following "third configuration information".

[0187]

[0188] Further, in one implementation, the information contained in the above-mentioned "first configuration information" and / or "second configuration information" will be different for different target cells or candidate cells. In another implementation, for different target cells or candidate cells, all or a part of the information contained in the above-mentioned "first configuration information" (such as information other than identification information of the cell and the identification information of the user equipment) are same, then the above-mentioned first configuration message will contain a common first configuration information (such as common candidate configuration). This information is applicable to all target cells or candidate cells, and the above-mentioned "second configuration information" is given separately for different target cells or candidate cells. In another implementation, for different target cells or candidate cells, the above-mentioned first configuration message include the above-mentioned "first configuration information" and "second configuration information" respectively, but all or a part of the information contained in the above-mentioned "first configuration information" (such as information other than identification information of the cell and the identification information of the user equipment) are same, while the "second configuration information" of different target cells or candidate cells are different.

[0189] Step 1-2: the first node (user equipment) processes the configuration information of the target cell or candidate cell. In this step, the first node will process part or all of the configuration information received in step 1-1. The processing method can be at least one of the following methods:

[0190] > an automatic processing, i.e. processing after the first node receives the first configuration message.

[0191] > processing based on the configuration information. That is, the first node will perform the processing based on the configuration information in the above-mentioned first configuration message, such as processing based on the above-mentioned "fast processing indication information", processing based on the above-mentioned "first configuration indication information", processing based on the above-mentioned "second configuration indication information", processing based on the above-mentioned "third configuration indication information", etc.

[0192] > processing based on a trigger message. That is, the first node will perform the processing based on the received signaling message, and the trigger message is transmitted to the first node by the second node, which may trigger the first node to perform the downlink synchronization with the target cell or candidate cell, may also trigger the first node to acquire uplink synchronization of the target cell or candidate cell in advance, or trigger the first node to perform cell switching.

[0193] > releasing configuration information based on the configuration message. That is, the first node will determine to release the processed configuration information based on the information contained in the received first configuration message, so that the cache occupied by the configuration information can be cleared for storage other configuration information.

[0194]

[0195] Specific embodiments are given below based on the above different processing methods:

[0196] Embodiment 1: automatic processing (only processing the above-mentioned "first configuration information"), the processing is fast processing or early processing.

[0197] In this method, when the user equipment receives the above-mentioned first configuration message, it will automatically process the "first configuration information" contained in the message. In one example, when different target cells or candidate cells are configured with the above-mentioned "first configuration information", the user equipment will process the "first configuration information" of different target cells or candidate cells respectively. In this way, when the user equipment switches to one of the target cells or candidate cells (the switching may be triggered after the user equipment receives the handover command, or when the user equipment detects that the handover conditions are met), it can perform data transmission with the target cell or candidate cell according to the "first configuration information" (such as performing the transmission of data carried by SRB1 and performing the transmission of data on the bear configured by the first configuration information). The beneficial effect of this is that the user equipment can quickly perform data transmission after switching, reducing the communication interruption or handover delay.

[0198] Embodiment 2: processing based on configuration information (processing based on indication information), and the processing is fast processing or early processing.

[0199] In this method, the user equipment determines whether to perform fast processing or early processing of the configuration information based on the indication information in the configuration information. In one example, when the above-mentioned first configuration message includes the above-mentioned "first indication information", the user equipment will process the received "first configuration information". Specifically, when different target cells or candidate cells have corresponding "first configuration information", the user equipment will process the corresponding "first configuration information" of these cells. In another example, when the above-mentioned first configuration message contains different processing indication information for different configuration information, the user equipment performs the processing according to the processing indication information. For example, when the "first configuration indication information" contains "first processing indication information", the user equipment will determine whether to process the "first configuration information" based on the "first processing indication information". For example, when the "second configuration indication information" includes the "second processing indication information", the user equipment will determine whether to process the "second configuration information" based on the "second processing indication information". For example, when the "third configuration indication information" includes the "third processing indication information", the user equipment will determine whether to process the "third configuration information" based on the "third processing indication information".

[0200] Embodiment 3: processing based on configuration information (processing based on number threshold information), and the processing is fast processing or early processing.

[0201] In this method, the user equipment determines the processing of the configuration information based on the threshold information and / or number information configured in the first configuration message.

[0202] The user equipment will determine to perform early processing (or fast processing) on the above-mentioned "first configuration information" and / or "second configuration information" and / or "third configuration information" according to at least one of the following conditions:

[0203] > A number of cells in all candidate configurations is less than a threshold.

[0204] > A sum of a number of configured serving cells and the number of cells in all candidate configurations is less than a threshold.

[0205] > A number of bearers in all candidate configurations is less than a threshold.

[0206] > A sum of a number of configured bearers serving user equipment and the number of bearers in all candidate configurations is less than a threshold.

[0207] > A number of first configuration information or a number of candidate configurations included in the candidate configuration information is less than a threshold.

[0208] > A number of first configuration information or a number of candidate configurations included in the candidate configuration information is less than a threshold.

[0209] The "a number of cells in all candidate configurations " can be obtained based on the "number information of cells in all candidate configurations " included in the "candidate configuration information", or can be obtained based on at least one of the "first cell number information", "second cell number information", and "third cell number information" included in the "candidate configuration information". The "a number of bearers in all candidate configurations" can be obtained based on the "number information of bears in all candidate configurations" included in the "candidate configuration information", or can be obtained based on at least one of the "first bearer number information", "second bearer number information", and "third bearer number information" included in the "candidate configuration information". The "threshold" can be a threshold related to user equipment capability, or a configured threshold (such as the above-mentioned "first candidate configuration threshold information", "first cell threshold information", "first bearer threshold information").

[0210] When there are multiple candidate configurations, for the candidate configuration processed first, the user equipment will process the "first configuration information" and "second configuration information" in the candidate configuration, or process the "third configuration information" of the candidate configuration. As the number of candidate configurations processed increases, only the "first configuration information" in the candidate configuration is processed. Then the user equipment will determine to stop processing the "second configuration information" or "third configuration information" in the candidate configuration based on at least one of the following conditions (that is, only process the "first configuration information" in the candidate configuration):

[0211] > A number of cells in candidate configurations that have been processed is greater than a threshold.

[0212] > A sum of a number of configured serving cells and a number of cells in candidate configurations that have been processed is greater than a threshold.

[0213] > A number of bearers in candidate configurations that have been processed is greater than a threshold.

[0214] > A sum of a number of configured bearers serving user equipment and a number of bearers in candidate configurations that have been processed is greater than a threshold.

[0215] > A number of candidate configurations that have been processed is greater than a threshold.

[0216] The "a number of cells in candidate configurations that have been processed " can be obtained based on the number of cells in each candidate configuration, or based on the "cell number information" contained in each candidate configuration. The "a number of bearers in candidate configurations that have been processed" can be obtained based on the number of bearers in each candidate configuration, or based on the "bearer number information" contained in each candidate configuration. The "threshold" can be a threshold related to user equipment capability, or a configured threshold (such as the above-mentioned "first candidate configuration threshold", "second cell threshold information", "second bearer threshold information").

[0217] Further, the order in which the user equipment processes the candidate configurations can be determined by the implementation of the user equipment, or can be based on the indication information in the first configuration message (such as "first processing priority indication information", "second processing priority indication information"," third processing priority indication information ").

[0218]

[0219] Embodiment 4: processing based on configuration information (processing based on signal threshold information), and the processing is fast processing or early processing.

[0220] In this embodiment, the user equipment determines the processing of the configuration information based on the measurement result of the serving cell or the measurement result of the target cell (or candidate cell). The user equipment will determine to perform early processing (or fast processing) on the above-mentioned "first configuration information" and / or "second configuration information" and / or "third configuration information" according to at least one of the following conditions:

[0221] > The measurement result of the serving cell is less than a threshold, which may be the above-mentioned "first signal threshold information", or the above-mentioned "third signal threshold information", or the above-mentioned "fourth signal threshold information", or the above-mentioned "fifth signal threshold information".

[0222] > The measurement result of the target cell or candidate cell is greater than a threshold, which may be the above-mentioned "second signal threshold information", or the above-mentioned "third signal threshold information", or the above-mentioned "fourth signal threshold information", or the above-mentioned "fifth signal threshold information".

[0223] The "measurement result" can be the result of layer 1 measurement, the result of layer 3 measurement, the measurement result of a cell, the measurement result of a beam, or other types of measurement results. In one example, if the above condition is met, the user equipment can process the "first configuration information". In another example, if the above condition is met, the user equipment can process the "first configuration information" and the "second configuration information". In another example, if the above condition is met, the user equipment can process the" third configuration information ".

[0224] Embodiment 5: processing based on signaling, and the processing is fast processing or early processing.

[0225] In this embodiment, the second node will transmit a signaling message to the first node, and the user equipment determines fast processing or early processing of the configuration information based on the signaling message. Specifically, as shown in Figure 4, after the above step 1-1, it also includes:

[0226] Step 1-2a: the second node transmits a second configuration message (for example, it can also be called a second message or other message name, the name of the message is not limited in any way by the present disclosure) to the first node. This message can trigger the fast processing of configuration information or trigger the release of the processed configuration information, which can help the user equipment process the suitable configuration information and store the suitable configuration information to reduce the communication interruption of the user equipment when the cell switches. This message includes at least one of the following information:

[0227] > indication information of an activated transmission configuration indicator (TCI), which includes the activated TCI state. When the first node receives the information, if the information indicates an activated TCI state, the first node can perform fast processing or early processing on the candidate configuration corresponding to the candidate cell corresponding to the TCI state (such as the above-mentioned "first configuration information", or the above-mentioned "second configuration information", or the above-mentioned "first configuration information" and "second configuration information", or the above-mentioned "third configuration information"). If the information does not indicate any activated TCI state (that is, all TCI states of the candidate cell are deactivated), if the user equipment has performed fast processing or early processing on the candidate configuration where the corresponding candidate cell is located (the user equipment saves the processed information in the cache), the user equipment will release these saved configuration information, thereby freeing up more storage space to store other configuration information. Through this information, the user equipment can determine whether to perform fast processing or early processing on the configuration information of the candidate cell, and whether the configuration information of the candidate cell needs to be released, which can help the user equipment reduce the communication interruption during the cell handover process. The information includes at least one of the following:

[0228] >> identification information of a candidate cell

[0229] >> identification information of an activated TCI state

[0230] > command information for performing early random access, which triggers the user equipment to perform early random access with the candidate cell (such as transmitting a preamble signal for the random access to the candidate cell). After the user equipment receives this information, the user equipment will perform fast processing or early processing on the candidate configuration corresponding to the candidate cell, thereby reducing the communication interruption when switching to the candidate cell. The information includes at least one of the following:

[0231] >> identification information of a candidate cell

[0232] >> configuration information of a random access, such as preamble index information (indicating the preamble for the random access)

[0233] > configuration processing indication information, which is used to indicate configuration information required to be processed by the user equipment, wherein the processing is fast processing or early processing. The user equipment can determine the configuration information required to be processed based on this information, and the information includes at least one of the following information:

[0234] >> indication information for processing first configuration information, which indicates the user equipment to process the above-mentioned "first configuration information". Further, the information may also indicate the candidate configuration to which the processed "first configuration information" belongs, such as identification information of a candidate configuration, identification information of a candidate cell, first configuration identification information.

[0235] >> indication information for processing second configuration information, which indicates the user equipment to process the above-mentioned "second configuration information". Further, the information may also indicate the candidate configuration to which the processed "second configuration information" belongs, such as identification information of a candidate configuration, identification information of a candidate cell, second configuration identification information.

[0236] >> indication information for processing third configuration information, which indicates the user equipment to process the above-mentioned "third configuration information". Further, the information may also indicate the candidate configuration to which the processed "third configuration information" belongs, such as identification information of a candidate configuration, identification information of a candidate cell, third configuration identification information.

[0237] > configuration release indication information, which is used to indicate to the user equipment to release the configuration information. The configuration information has been processed (such as ASN.1 decoding, validity check, compliance check) by the user equipment. After the user equipment receives the information, if the candidate configuration indicated by the information has been fast processed or early processed by the user equipment and stored in the cache, the user equipment needs to delete the candidate configuration from the cache and free up cache space to store other configuration information. The configuration information may be the above-mentioned "first configuration information", or "second configuration information", or "third configuration information". Further, after receiving this information, the user equipment can also use the "first release priority indication information" or "second release priority indication information" or "third release priority indication information" contained in the first configuration message" to release configuration information according to priority. The beneficial effect of this information is to release the storage space of the user equipment, facilitate fast processing of other candidate configurations, and reduce the communication interruption of the user equipment during the cell handover process. The information includes at least one of the following:

[0238] >> indication information for releasing first configuration information, which indicates the user equipment to release the above-mentioned "first configuration information". Further, this information may also indicate the candidate configuration to which the released "first configuration information" belongs, such as identification information of a candidate configuration, identification information of a candidate cell, first configuration identification information.

[0239] >> indication information for releasing second configuration information, which indicates the user equipment to release the above-mentioned "second configuration information". Further, this information may also indicate the candidate configuration to which the released "second configuration information" belongs, such as identification information of a candidate configuration, identification information of a candidate cell, second configuration identification information.

[0240] >> indication information for releasing third configuration information, which indicates the user equipment to release the above-mentioned "third configuration information". Further, this information may also indicate the candidate configuration to which the released "third configuration information" belongs, such as identification information of a candidate configuration, identification information of a candidate cell, third configuration identification information.

[0241] In one example, after receiving the above-mentioned second configuration message, the user equipment will process (such as fast processing, or early processing) the "first configuration information" of the target cell or candidate cell according to the information in the message, so that the configuration information processed by the user equipment can be reduced, reducing the processing delay, and the user equipment can quickly perform data transmission after accessing the candidate cell, reducing the communication interruption or handover delay.

[0242] The above-mentioned second configuration message can be an RRC message, a control source message of a media access control layer, or a physical layer signaling (such as a command of the Physical downlink control channel (PDCCH)).

[0243] Embodiment 6: release of configuration information based on the configuration message.

[0244] In this embodiment, when the user equipment processes more configuration information, it will release the processed configuration information according to the information in the first configuration message, and the processed configuration information is stored in the cache of the user equipment. The user equipment will determine the released configuration based on at least one of the following information:

[0245] > first release priority indication information

[0246] > second release priority indication information

[0247] > third release priority indication information

[0248] In another example, the user equipment will determine the order of release based on the processing order, such as the configuration information processed first being released first, or the configuration information processed latest being released first.

[0249] In another example, the user equipment will release according to the configured release threshold information, such as the above-mentioned "first release threshold information", or the above-mentioned "second release threshold information", or the above-mentioned "third release threshold information", or "fourth release threshold information".

[0250] In one example, in the above-mentioned Embodiments 1 to 5, the configuration information processed by the user equipment (such as fast processing, or early processing) may be the "first configuration information" of the target cell or candidate cell, so that the "first configuration information" and "second configuration information" of the target cell or candidate cell will be processed at different times, that is, the user equipment first processes the "first configuration information" and then processes the "second configuration information". Such a method can reduce the configuration information processed by the user equipment and reduce the processing delay. Moreover, the user equipment can quickly perform data transmission after accessing the candidate cell, reducing the communication interruption or handover delay.

[0251]

[0252] When the user equipment processes the above-mentioned "first configuration information" and "second configuration information" at different times, an example processing step is as follows:

[0253] Step 2-1: the user equipment processes the "first configuration information". For examples of this processing, please refer to the above-mentioned Embodiment 1 to Embodiment 5.

[0254] Step 2-2: the user equipment receives a handover command indicating a target cell or candidate cell.

[0255] Step 2-3: the user equipment adjusts the hardware device and applies the configuration information of the target cell or candidate cell, which is the configuration information contained in the "first configuration information".

[0256] Step 2-4: the user equipment performs data transmission with the network based on the "first configuration information". In one example, the transmitted data is data on SRB1, such as the RRC reconfiguration complete message.

[0257] Step 2-5: the user equipment processes the above-mentioned "second configuration information" corresponding to the target cell or candidate cell.

[0258] Step 2-6: the hardware device is further adjusted according to the obtained "second configuration information" and the configuration information contained in the "second configuration information" is applied.

[0259] Step 2-7: the user equipment applies the complete configuration information corresponding to the target cell or candidate cell and performs data transmission.

[0260] In one example, step 2-5 above can occur after step 2-2, and step 2-5 and step 2-6 can be performed simultaneously with step 2-3 and step 2-4 (as shown in Figure 5). In another example, step 2-5 above can occur after step 2-3, and step 2-5 and step 2-6 can be performed simultaneously with step 2-4 (as shown in Figure 6). Such processing can reduce communication interruption or handover delay during the handover process of the user equipment, because the user equipment does not need to process the first configuration information after receiving the handover signaling (it has been completed before receiving the handover signaling). After applying the first configuration information, the user equipment can directly perform data transmission with the network (such as data transmission on SRB1). In one example, the data transmission is a transmission that the user equipment needs to perform after accessing the target cell or candidate cell. At the same time, when applying the first configuration information (as shown in Figure 5) or performing data transmission of SRB1 (as shown in Figure 6), the user equipment can process or apply the second configuration information, so that parallel operations reduce the communication interruption or handover delay during the handover process.

[0261] Further, in order to reduce the delay in the above steps 2-3 and 2-6, the user equipment can also pre-configure the target cell or candidate cell or other serving cells according to the information in the above first configuration message. The beneficial effect of this operation is to reduce the delay for the user equipment to apply the configuration information of the candidate configuration, thereby reducing communication interruption during handover or an increase in handover delay. Possible implementations are as follows:

[0262] Embodiment 1: a cell in the processed configuration information is configured as a serving cell of the user equipment.

[0263] In this embodiment, when the user equipment performs fast processing or early processing on the candidate configuration information (such as the above-mentioned first configuration information, or second configuration information, or third configuration information), the user equipment will configure the cell included in the candidate configuration information as a new serving cell (such as a new secondary cell) of the user equipment, but the user equipment does not perform any data transmission on the "new serving cell", and the user equipment only applies the configuration information of the "new serving cell".

[0264] Embodiment 2: configure a cell in the processed configuration information as a serving cell of the user equipment according to information in the first configuration message.

[0265] In this embodiment, when the user equipment performs fast processing or early processing on candidate configuration information (such as the above-mentioned first configuration information, or second configuration information, or third configuration information), and the above-mentioned first configuration message contains "first early configuration indication information" or "second early configuration indication information" or "third early configuration indication information", the user equipment will configure the cell included in the candidate configuration corresponding to the early configuration indication information as a new serving cell (such as a new secondary cell) of the user equipment, but the user equipment does not perform any data transmission on the "new serving cell", and the user equipment only applies the configuration information of the "new serving cell".

[0266] In order to configure the target cell or candidate cell of the user equipment, the second node needs to obtain the configuration information of the target cell or candidate cell from other nodes. Therefore, before step 1-1, the method in the present disclosure also includes the following steps, as shown in Figure As shown in 7:

[0267] Step 0-1: a second node (such as a source node, a source master node, a master node, a secondary node, a centralized unit of a node) transmits a first request message to a third node (a target / candidate node, a target / candidate master node, a secondary node, a master node, a distributed unit of a node). The message is used to request to configure the cell of the first node (user terminal). In one example, the cell may be a target cell for handover of the first node (such as a target cell for layer 3 handover, a primary cell of the secondary cell group, a primary cell of the primary cell group), and the target cell is a cell served by the third node. In another example, the cell may be a candidate cell (such as a candidate cell for handover, a candidate cell for LTM), and the candidate cell is a cell served by the third node. After receiving the message, the third node will generate the related configuration of the target cell or candidate cell, and transmit it to the second node in the following steps 0-2, so that the second node can configure the user equipment (first node). One example of this message is a Handover Request message, another example of this message is a Secondary node addition / modification request message. The message includes at least one of the following information:

[0268] > identification information of a cell, which indicates a target cell or candidate cell.

[0269] > configuration request indication information. The function of the information is to request the third node to generate configuration information that can facilitate fast signaling processing by the user equipment. In one example, the information is indication information of the capability of the user equipment, that is, indicating that the user equipment has the ability to fast process signaling. After receiving the information, the third node will generate the configuration information of the user equipment based on the fast processing capability of the user equipment. The beneficial effect of this information is to help the third node generate configuration information of the target cell or candidate cell of the user equipment and reduce the delay or interruption of the user equipment during the handover process. The information includes at least one of the following:

[0270] >> fast processing capability indication information, which indicates that the user equipment has the ability to fast process configuration information. Based on this indication information, the third node will generate configuration information suitable for this capability. In one example, the configuration information suitable for this capability is to divide the candidate configuration information corresponding to the target cell or candidate cell into two parts, one part is the above-mentioned "first configuration information" and the other part is the above-mentioned "second configuration information".

[0271] >> separate configuration indication information, which indicates the third node to divide the configuration information into two parts when generating configuration information corresponding to the target cell or candidate cell, one part contains the above-mentioned "first configuration information", and the other part contains the above-mentioned "second configuration information".

[0272] >> information related to a supported maximum number of candidate configurations, which indicates the supported maximum number of candidate configurations when the user equipment performs fast processing or early processing of configuration information. If the number of candidate configurations exceeds the number indicated by the information, the user equipment cannot perform fast processing or early processing of configuration information.

[0273] n >> information related to a supported maximum number of serving cells and candidate cells, which indicates the supported maximum number of serving cells and candidate cells when the user equipment performs fast processing or early processing of configuration information. The serving cell may be a primary cell and / or a secondary cell of a primary cell group that is currently serving user equipment, or a primary cell and / or a secondary cell of a secondary cell group that is serving user equipment. The candidate cells include a primary cell and / or a secondary cell of the primary cell group configured for the user equipment, and a special cell and / or a secondary cell of the primary cell group configured for the user equipment. If the number of cells exceeds the number indicated by the information, the user equipment cannot perform fast processing or early processing of the configuration information.

[0274] > configuration information of a source cell, which includes the configuration information of the user equipment in the source cell, such as physical layer configuration information, bearer configuration information, MAC layer configuration information, etc. After receiving this information, the third node can refer to the information to generate configuration information of the candidate cell or the target cell.

[0275] Step 0-2: the third node transmits a first response message to the second node. The message is used to provide configuration information of the target cell or candidate cell, and the configuration information can be used to configure the first node to perform a cell switch (such as layer 3 handover, LTM, CLTM, CHO, CPAC, Subsequent LTM, Subsequent CPAC, etc.). One example of this message is a Handover Request Acknowledge message, another example of this message is a Secondary node addition / modification request acknowledge message. The message may contain one or more candidate configurations, each candidate configuration is related to a target cell or candidate cell. It may contain configuration information of one or more cells, or configuration information of one or more bearers. After the second node receives this information, it will transmit it to the first node through the above step 1-1. For one candidate configuration, the message includes at least one of the following information:

[0276] > candidate configuration identification information, which identifies a candidate configuration corresponding to one target cell or candidate cell. In one example, the candidate configuration only contains the configuration information of one cell. In another example, the candidate configuration contains configuration information of one or more cells, such as configuration information of one cell group.

[0277] > cell number information indicating a number of cells included in one candidate configuration information.

[0278] > bearer number information indicating a number of bearers included in one candidate configuration information.

[0279] > first configuration information, the configuration information includes configuration information required to be used by the user equipment after accessing the target cell or candidate cell, or includes minimum configuration information required for the user equipment to perform data transmission quickly after accessing a target cell or a candidate cell. For specific description, please refer to the description in step 1-1 above.

[0280] > first configuration indication information, which is used to indicate information required to process the above-mentioned "first configuration information". After receiving this information, the user equipment can determine the conditions and / or required overhead required to process the above-mentioned "first configuration information", and then decide whether to perform early processing on the above-mentioned "first configuration information". For specific description, please refer to the description in step 1-1 above.

[0281] > second configuration information, which includes configuration information required by the user equipment for data transmission in the target cell or the candidate cell and not included in the above-mentioned "first configuration information". That is, "second configuration information" and the "first configuration information" can generate complete configuration information required by the user equipment after accessing the target cell or the candidate cell. For specific description, please refer to the description in step 1-1 above.

[0282] > second configuration indication information, which is used to indicate information required to process the above-mentioned "second configuration information". After receiving this information, the user equipment can determine the overhead required to process the above-mentioned "second configuration information", and then decide whether to perform early processing on the above-mentioned "second configuration information". For specific description, please refer to the description in step 1-1 above.

[0283] > third configuration information, which includes configuration information required by the user equipment after accessing the target cell or the candidate cell. This configuration information can be used by the user equipment to generate the complete configuration required after accessing the target cell or the candidate cell. In one example, the information contained in the information may be the merged configuration information of the "first configuration information" and the "second configuration information". For specific description, please refer to the description in step 1-1 above.

[0284] n > third configuration indication information, which is used to indicate information required to process the above-mentioned "third configuration information". After receiving this information, the user equipment can determine the overhead required to process the above-mentioned "third configuration information", and then decide whether to perform early processing on the above-mentioned "third configuration information". For specific description, please refer to the description in step 1-1 above.

[0285] The above-mentioned first response message can be transmitted based on the above-mentioned first request message (that is, step 0-2 occurs after step 0-1), or it can be transmitted actively by the third node (that is, step 0-2 does not occur before step 0-1).

[0286] In addition, it can be understood that the content contained in each message in the above embodiments is only an example of the present disclosure, and the content contained in various types of similar or identical messages can be replaced with each other according to the situation, or named with different names, or some items are added or deleted, and for the sake of simplicity, the meanings of similar content items can be explained each other according to the context and will not be repeated. Modified and explained implementations still fall within the scope of protection of the present disclosure.

[0287] Figure 8 is a block diagram of a node according to an example embodiment of the present disclosure. Here, the structure and function of a node are explained by taking it as an example, but it should be understood that the shown structure and function can also be applied to the base stations, the relay node and user equipment. Referring to Figure 8, the node 800 includes a transceiver 810, a controller 820 and a memory 830. Under the control of the controller 820, which may be implemented as one or more processors, the node 800 (including the transceiver 810 and the memory 830) is configured to perform the operations of the node described herein. Although the transceiver 810, the controller 820 and the memory 830 are shown as separate entities, they may be implemented as a single entity, such as a single chip. The transceiver 810, the controller 820 and the memory 830 may be electrically connected or coupled to each other. The transceiver 810 can transmit and receive signals to and from other network entities, such as another node and / or UE. In one embodiment, the transceiver 810 may be omitted. In this case, the controller 820 may be configured to execute instructions (including computer programs) stored in the memory 830 to control the overall operation of the node 800, thereby realizing the operation of the node described herein.

[0288] According to some embodiments, the user equipment described in the present disclosure may include a cellular or other communication device having a single-line display or a multi-line display or a cellular or other communication device without a multi-line display; PCS (Personal Communications Service), which can combine voice, data processing, fax and / or data communication capabilities; PDA(Personal Digital Assistant), which can include RF receiver, pager, Internet / Intranet access, web browser, notepad, calendar and / or GPS(Global Positioning System) receiver; a traditional laptop and / or palmtop computer or other device having and / or including a radio frequency receiver. As used herein, "terminal" and "terminal device" can be portable, transportable, installed in vehicles (air, sea and / or land), or suitable and / or configured to operate locally, and / or operate in any other location on the earth and / or space in a distributed form. The "terminal" and "terminal device" used here can also be communication terminals, internet terminals and music / video playing terminals, such as PDA, MID (Mobile Internet Device) and / or a mobile phone with music / video playing function, and smart TV, set-top box and other devices.

[0289] Those skilled in the art can realize that the disclosure can be realized in other specific forms without changing the technical idea or basic features of the disclosure. Therefore, it should be understood that the above-mentioned embodiments are only examples and are not limited. The scope of the present disclosure is defined by the appended claims rather than by the detailed description. Therefore, it is to be understood that all modifications or changes derived from the meaning and scope of the appended claims and their equivalents are within the scope of this disclosure.

[0290] In the above embodiments of the present disclosure, all operations and messages may be selectively performed or may be omitted. Furthermore, the operations in each embodiment do not need to be performed sequentially, and the order of the operations can be changed. Messages do not need to be transmitted in order, and the transmission order of messages may change. Each operation and each message transfer can be performed independently.

[0291] Although the present disclosure has been shown and described with reference to various embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents.

[0292] According to an aspect of the present disclosure, there is provided a method performed by a first node in a communication system, the method comprising: receiving a first message from a second node, the first message including candidate configuration information that includes first configuration information and second configuration information; processing the received candidate configuration information; wherein the first configuration information includes minimum configuration information required for data transmission after the first node accesses a target cell or a candidate cell; wherein the second configuration information includes configuration information not included in the first configuration information and required by the first node for data transmission in the target cell or the candidate cell; wherein the processing includes processing the first configuration information before receiving the handover signaling and processing the second configuration information after receiving the handover signaling.

[0293] According to the method performed by the first node in the communication system provided by the present disclosure, wherein the first configuration information includes at least one of: first configuration identification information for identifying the first configuration information; first cell configuration information related to a cell required to be configured for data transmission after the first node accesses the target cell or the candidate cell; wherein the second configuration information includes at least one of: second configuration identification information for identifying the second configuration information; second cell configuration information related to data transmission after the first node accesses the target cell or the candidate cell and not included in the first cell configuration information.

[0294] According to the method performed by the first node in the communication system provided by the present disclosure, wherein the first configuration information includes configuration information required for data transmission of a first signaling radio bearer after the first node accesses the target cell or the candidate cell.

[0295] According to the method performed by the first node in the communication system provided by the present disclosure, wherein the first message includes at least one of the following information: first indication information indicating the first node to process the first configuration information; first candidate configuration threshold information indicating a maximum number of candidate configurations for the first node to perform fast configuration information processing; first cell threshold information indicating a maximum number of cells for the first node to perform fast configuration information processing; first bearer threshold information indicating a maximum number of bearers for the first node to perform fast configuration information processing; second cell threshold information indicating a number of cells for the first node to stop processing the second configuration information; second bearer threshold information indicating a number of bearers for the first node to stop processing the second configuration information; first signal threshold information indicating a signal threshold of a serving cell for the first node to perform fast configuration information processing; second signal threshold information indicating a signal threshold of a target cell or a candidate cell for the first node to perform fast configuration information processing; first release threshold information indicating threshold information required for the first node to release configuration information.

[0296] According to the method performed by the first node in the communication system provided by the present disclosure, wherein the candidate configuration information includes at least one of: candidate configuration identification information; information indicating a number of cells included in the candidate configuration information; information indicating a number of bearers included in the candidate configuration information; first configuration indication information indicating information required for processing the first configuration information; second configuration indication information indicating information required for processing the second configuration information; third configuration information for generating a complete configuration of a target cell or a candidate cell; third configuration indication information indicating information required for processing the third configuration information; indication information indicating the first node to apply the first configuration information in advance; indication information indicating the first node to apply the second configuration information in advance; indication information indicating the first node to apply the third configuration information in advance.

[0297] According to the method performed by the first node in the communication system provided by the present disclosure, further comprising: receiving a second message transmitted by the second node, the second message triggering the first node to perform fast processing of the configuration information; wherein the second message includes at least one of the following information: indication information of an activated transmission configuration indicator (TCI) indicating an activated TCI state; information triggering the first node to perform a random access with the candidate cell in advance; information indicating the first node to process the first configuration information; information indicating the first node to process the second configuration information; information indicating the first node to process third configuration information; information indicating the first node to release the first configuration information; information indicating the first node to release the second configuration information; information indicating the first node to release the third configuration information.

[0298] According to the method performed by the first node in the communication system provided by the present disclosure, wherein the processing is processing the first configuration information according to at least one of: processing the first configuration information after the first node receives the first message; determining whether to process the first configuration information based on first indication information included in the first message; determining whether to process the first configuration information based on first candidate configuration threshold information; determining whether to process the first configuration information based on first cell threshold information; determining whether to process the first configuration information based on first bearer threshold information; determining whether to process the first configuration information based on second cell threshold information; determining whether to process the first configuration information based on second bearer threshold information; determining whether to process the first configuration information based on first signal threshold information; determining whether to process the first configuration information based on second signal threshold information.

[0299] According to the method performed by the first node in the communication system provided by the present disclosure, wherein the processing comprises at least one of decoding of Abstract Syntax Notation One(ASN.1), a validity check, or a compliance check.

[0300] According to the method performed by the first node in the communication system provided by the present disclosure, wherein the first configuration information and the second configuration information are transmitted by the third node to the second node by a first response message.

[0301] According to the method performed by the first node in the communication system provided by the present disclosure, wherein the processing the first configuration information occurs after the first node receives a second message.

[0302] According to the method performed by the first node in the communication system provided by the present disclosure, wherein the first cell configuration information or the second cell configuration information includes at least one of: identification information of a cell; identification information of the first node; configuration information of a random access; configuration information of a physical channel; configuration information of an uplink grant; configuration information of a downlink grant; configuration information of one or more radio bearers; media access control configuration information.

[0303] According to another aspect of the present disclosure, there is provided a method performed by a second node in a communication system, the method comprising: receiving a first response message from a third node, the first response message including candidate configuration information that includes first configuration information and second configuration information; transmitting a first message including the candidate configuration information to a first node; wherein the first configuration information includes minimum configuration information required for data transmission after the first node accesses a target cell or a candidate cell; wherein the second configuration information includes configuration information not included in the first configuration information and required by the first node for data transmission in the target cell or the candidate cell; wherein the first configuration information is processed by the first node before receiving handover signaling, and the second configuration information is processed by the first node after receiving handover signaling.

[0304] According to the method performed by the second node in the communication system provided by the present disclosure, wherein the first configuration information includes at least one of: first configuration identification information for identifying the first configuration information; first cell configuration information related to a cell required to be configured for data transmission after the first node accesses the target cell or the candidate cell; wherein the second configuration information includes at least one of: second configuration identification information for identifying the second configuration information; second cell configuration information related to data transmission after the first node accesses the target cell or the candidate cell and not included in the first cell configuration information

[0305] According to the method performed by the second node in the communication system provided by the present disclosure, wherein the first configuration information includes configuration information required for data transmission of a first signaling radio bearer after the first node accesses the target cell or the candidate cell.

[0306] According to the method performed by the second node in the communication system provided by the present disclosure, wherein the first message includes at least one of the following information: first indication information indicating the first node to process the first configuration information; first candidate configuration threshold information indicating a maximum number of candidate configurations for the first node to perform fast configuration information processing; first cell threshold information indicating a maximum number of cells for the first node to perform fast configuration information processing; first bearer threshold information indicating a maximum number of bearers for the first node to perform fast configuration information processing; second cell threshold information indicating a number of cells for the first node to stop processing the second configuration information; second bearer threshold information indicating a number of bearers for the first node to stop processing the second configuration information; first signal threshold information indicating a signal threshold of a serving cell for the first node to perform fast configuration information processing; second signal threshold information indicating a signal threshold of a target cell or a candidate cell for the first node to perform fast configuration information processing; first release threshold information indicating threshold information required for the first node to release configuration information.

[0307] According to the method performed by the second node in the communication system provided by the present disclosure, wherein the candidate configuration information includes at least one of: candidate configuration identification information; information indicating a number of cells included in the candidate configuration information; information indicating a number of bearers included in the candidate configuration information; first configuration indication information indicating information required for processing the first configuration information; second configuration indication information indicating information required for processing the second configuration information; third configuration information for generating a complete configuration of a target cell or a candidate cell; third configuration indication information indicating information required for processing the third configuration information; indication information indicating the first node to apply the first configuration information in advance; indication information indicating the first node to apply the second configuration information in advance; indication information indicating the first node to apply the third configuration information in advance.

[0308] According to the method performed by the second node in the communication system provided by the present disclosure, further comprising: transmitting a second message to the first node, the second message triggering the first node to perform fast processing of the configuration information; wherein the second message includes at least one of the following information: indication information of an activated transmission configuration indicator (TCI) indicating an activated TCI state; information triggering the first node to perform a random access with the candidate cell in advance; information indicating the first node to process the first configuration information; information indicating the first node to process the second configuration information; information indicating the first node to process third configuration information; information indicating the first node to release the first configuration information; information indicating the first node to release the second configuration information; information indicating the first node to release the third configuration information.

[0309] According to another aspect of the present disclosure, there is provided a method performed by a third node in a communication system, the method comprising: receiving a first request message from a second node, the first request message requesting to configure a target cell or candidate cell of a first node; transmitting a first response message to the second node, the first response message including candidate configuration information that includes first configuration information and second configuration information; wherein the candidate configuration information is transmitted by the second node to the first node; wherein the first configuration information includes minimum configuration information required for data transmission after the first node accesses a target cell or a candidate cell; wherein the second configuration information includes configuration information not included in the first configuration information and required by the first node for data transmission in the target cell or the candidate cell; wherein the first configuration information is processed by the first node before receiving handover signaling, and the second configuration information is processed by the first node after receiving handover signaling.

[0310] According to the method performed by the third node in the communication system provided by the present disclosure, wherein the first configuration information includes at least one of: first configuration identification information for identifying the first configuration information; first cell configuration information related to a cell required to be configured for data transmission after the first node accesses the target cell or the candidate cell; wherein the second configuration information includes at least one of: second configuration identification information for identifying the second configuration information; second cell configuration information related to data transmission after the first node accesses the target cell or the candidate cell and not included in the first cell configuration information.

[0311] According to another aspect of the present disclosure, a node device is provided, the node device comprising:

[0312] A transceiver configured to transmit and receive signals with the outside; and a controller configured to control the transceiver to perform the method of any one of the above performed by the the first node or second node or the third node.

Claims

1.A method performed by a user equipment(UE) in a communication system, the method comprising:receiving a first message from a first base station, the first message including candidate configuration information that includes first configuration information and second configuration information;processing the received candidate configuration information;wherein the first configuration information includes minimum configuration information required for data transmission after the UE accesses a target cell or a candidate cell;wherein the second configuration information includes configuration information not included in the first configuration information and required by the UE for data transmission in the target cell or the candidate cell; andwherein the processing includes processing the first configuration information before receiving the handover signaling and processing the second configuration information after receiving the handover signaling.2.The method of claim 1, wherein the first configuration information includes at least one of:first configuration identification information for identifying the first configuration information;first cell configuration information related to a cell required to be configured for data transmission after the UE accesses the target cell or the candidate cell;wherein the second configuration information includes at least one of:second configuration identification information for identifying the second configuration information; andsecond cell configuration information related to data transmission after the UE accesses the target cell or the candidate cell and not included in the first cell configuration information.3.The method of any one of claims 1 to 2, wherein the first configuration information includes configuration information required for data transmission of a first signaling radio bearer after the UE accesses the target cell or the candidate cell.4.The method of any one of claims 1 to 3, wherein the first message includes at least one of the following information:first indication information indicating the UE to process the first configuration information;first candidate configuration threshold information indicating a maximum number of candidate configurations for the UE to perform fast configuration information processing;first cell threshold information indicating a maximum number of cells for the UE to perform fast configuration information processing;first bearer threshold information indicating a maximum number of bearers for the UE to perform fast configuration information processing;second cell threshold information indicating a number of cells for the UE to stop processing the second configuration information;second bearer threshold information indicating a number of bearers for the UE to stop processing the second configuration information;first signal threshold information indicating a signal threshold of a serving cell for the UE to perform fast configuration information processing;second signal threshold information indicating a signal threshold of a target cell or a candidate cell for the UE to perform fast configuration information processing; andfirst release threshold information indicating threshold information required for the UE to release configuration information.5.The method of any one of claims 1 to 4, wherein the candidate configuration information includes at least one of:candidate configuration identification information;information indicating a number of cells included in the candidate configuration information;information indicating a number of bearers included in the candidate configuration information;first configuration indication information indicating information required for processing the first configuration information;second configuration indication information indicating information required for processing the second configuration information;third configuration information for generating a complete configuration of a target cell or a candidate cell;third configuration indication information indicating information required for processing the third configuration information;indication information indicating the UE to apply the first configuration information in advance;indication information indicating the UE to apply the second configuration information in advance;indication information indicating the UE to apply the third configuration information in advance.6.The method of claim 1 or 5, further comprising:receiving a second message transmitted by the first base station, the second message triggering the UE to perform fast processing of the configuration information;wherein the second message includes at least one of the following information:indication information of an activated transmission configuration indicator (TCI) indicating an activated TCI state;information triggering the UE to perform a random access with the candidate cell in advance;information indicating the UE to process the first configuration information;information indicating the UE to process the second configuration information;information indicating the UE to process third configuration information;information indicating the UE to release the first configuration information;information indicating the UE to release the second configuration information;information indicating the UE to release the third configuration information.7.The method of claim 1 or 4, wherein the processing is processing the first configuration information according to at least one of:processing the first configuration information after the UE receives the first message;determining whether to process the first configuration information based on first indication information included in the first message;determining whether to process the first configuration information based on first candidate configuration threshold information;determining whether to process the first configuration information based on first cell threshold information;determining whether to process the first configuration information based on first bearer threshold information;determining whether to process the first configuration information based on second cell threshold information;determining whether to process the first configuration information based on second bearer threshold information;determining whether to process the first configuration information based on first signal threshold information;determining whether to process the first configuration information based on second signal threshold information.8.The method of claim 1 or 6, wherein the processing comprises at least one of decoding of Abstract Syntax Notation One(ASN.1), a validity check, or a compliance check.9.The method of any one of claims 1 to 8, wherein the first configuration information and the second configuration information are transmitted by the second base station to the first base station by a first response message.10.The method of claim 1 or 6, wherein the processing the first configuration information occurs after the UE receives a second message.11.The method of claim 2, wherein the first cell configuration information or the second cell configuration information includes at least one of:identification information of a cell;identification information of the UE;configuration information of a random access;configuration information of a physical channel;configuration information of an uplink grant;configuration information of a downlink grant;configuration information of one or more radio bearers;media access control configuration information.12.A method performed by a first base station in a communication system, the method comprising:receiving a first response message from a second base station, the first response message including candidate configuration information that includes first configuration information and second configuration information;transmitting a first message including the candidate configuration information to a UE;wherein the first configuration information includes minimum configuration information required for data transmission after the UE accesses a target cell or a candidate cell;wherein the second configuration information includes configuration information not included in the first configuration information and required by the UE for data transmission in the target cell or the candidate cell;wherein the first configuration information is processed by the UE before receiving handover signaling, and the second configuration information is processed by the UE after receiving handover signaling.13.The method according to claim 12, wherein the first configuration information includes at least one of:first configuration identification information for identifying the first configuration information;first cell configuration information related to a cell required to be configured for data transmission after the UE accesses the target cell or the candidate cell;wherein the second configuration information includes at least one of:second configuration identification information for identifying the second configuration information;second cell configuration information related to data transmission after the UE accesses the target cell or the candidate cell and not included in the first cell configuration information.14.The method according to claim 12, wherein the first message includes at least one of the following information:first indication information indicating the UE to process the first configuration information;first candidate configuration threshold information indicating a maximum number of candidate configurations for the UE to perform fast configuration information processing;first cell threshold information indicating a maximum number of cells for the UE to perform fast configuration information processing;first bearer threshold information indicating a maximum number of bearers for the UE to perform fast configuration information processing;second cell threshold information indicating a number of cells for the UE to stop processing the second configuration information;second bearer threshold information indicating a number of bearers for the UE to stop processing the second configuration information;first signal threshold information indicating a signal threshold of a serving cell for the UE to perform fast configuration information processing;second signal threshold information indicating a signal threshold of a target cell or a candidate cell for the UE to perform fast configuration information processing;first release threshold information indicating threshold information required for the UE to release configuration information.15.A user equipment(UE) in a wireless communication system, the UE comprising:a transceiver configured to transmit and receive signals with the outside; anda controller configured to control the transceiver to:receive a first message from a first base station, the first message including candidate configuration information that includes first configuration information and second configuration information;process the received candidate configuration information;wherein the first configuration information includes minimum configuration information required for data transmission after the UE accesses a target cell or a candidate cell;wherein the second configuration information includes configuration information not included in the first configuration information and required by the UE for data transmission in the target cell or the candidate cell; andwherein the processing includes processing the first configuration information before receiving the handover signaling and processing the second configuration information after receiving the handover signaling.

Images