Node device in a wireless communication system and method performed thereby

Abstract

The disclosure relates to a 5G communication system or a 6G communication system for supporting a higher data rate than a 4G communication system such as long term evolution (LTE). The disclosure provides a method of performing in a wireless communication system and an apparatus thereof. In one embodiment, a method performed by a fourth node in a wireless communication network is provided, the method including receiving, from a second node, fifth information including continuous data transmission related indication information, and performing continuous data transmission across cells or across base stations according to the fifth information.

Description

Technical Field

[0001] This application relates to wireless communication technology, and more particularly to an interactive method and apparatus. Background Technology

[0002] Given the successive generations of wireless communication development, these technologies have primarily been developed for human-oriented services such as voice calls, multimedia services, and data services. With the commercialization of 5th-generation (5G) communication systems, the number of connected devices is expected to grow exponentially. These will increasingly connect to communication networks. Examples of the Internet of Things (IoT) can include vehicles, robots, drones, home appliances, displays, smart sensors connected to various infrastructures, construction machinery, and factory equipment. Mobile devices are expected to evolve in various forms, such as augmented reality glasses, virtual reality headsets, and holographic devices. Efforts are underway to develop improved 6G communication systems to provide a wide range of services by connecting hundreds of billions of devices and things in the sixth-generation (6G) era.

[0003] The 6G communication system, expected to be commercially available around 2030, will offer significant improvements in all aspects compared to existing 5G systems. Its peak speed will reach at least 50 Gbit / s, user experience speed will reach at least 300 Mbit / s, air interface latency will be less than 1 ms, and air interface reliability will reach 10... -5 In addition to the basic communication indicators mentioned above, 6G communication systems will also have sensing capabilities, AI-related capabilities, and better security, interoperability, and sustainability.

[0004] To achieve the aforementioned performance indicators in 6G communication systems, more advanced air interface and network technologies are needed. Currently, the evolution of extreme multiple input multiple output (MIMO) is being considered, including the use of very large-scale antenna arrays, the development and evolution of distributed antenna systems, and the design of MIMO air interface algorithms assisted by artificial intelligence (AI). This technology can achieve higher spectral efficiency, greater coverage, and more precise positioning and sensing capabilities. Furthermore, technologies that contribute to improving high-frequency coverage, such as metamaterial-based lenses and antennas, novel antenna architectures, and reconfigurable intelligence surfaces (RIS), also require further evolution and development.

[0005] To meet the new functions added to the 6G communication system, it is necessary to develop new technologies in areas such as network energy saving, air interface security, and network security, and at the same time, it is necessary to study the feasibility of integrated technologies such as communication and sensing integration.

[0006] In addition, to improve spectrum efficiency and overall network performance, the following technologies have been developed for 6G communication systems: full-duplex technology to enable uplink and downlink transmissions to use the same frequency resources simultaneously; network technologies that utilize satellites, high-altitude platform stations (HAPS), etc., in a comprehensive manner; improved network architecture to support mobile base stations, etc., and to enable network operation optimization and automation; dynamic spectrum sharing technology based on spectrum usage prediction and conflict avoidance; the use of artificial intelligence (AI) in wireless communication to improve overall network operation by utilizing AI from the design phase of 6G development and internalizing end-to-end AI support functions; and next-generation distributed computing technologies that overcome the computing power limitations of user equipment (UE) by leveraging ultra-high-performance communication and computing resources (such as mobile edge computing (MEC), cloud, etc.) achievable on the network. Furthermore, efforts are continuing to enhance connectivity between devices, optimize networks, promote the software-defined networking of network entities, and increase the openness of wireless communications by designing new protocols to be used in 6G communication systems, developing mechanisms for achieving hardware-based secure environments and secure data use, and developing technologies for maintaining privacy.

[0007] The research and development of 6G communication systems, encompassing hyper-connectivity for both person-to-machine (P2M) and machine-to-machine (M2M) interactions, is expected to deliver the next wave of hyper-connected experiences. Specifically, services such as truly immersive extended reality (XR), high-fidelity mobile holograms, and digital replicas are anticipated to be provided through 6G communication systems. Furthermore, services such as remote surgery for enhanced security and reliability, industrial automation, and emergency response will be available via 6G communication systems, enabling the technology to be applied across a wide range of sectors including industry, healthcare, automotive, and home appliances. Summary of the Invention

[0008] According to one aspect of this disclosure, a method is provided performed by a fourth node in a wireless communication network, the method comprising: receiving fifth information from a second node, the fifth information including continuous data transmission related indication information; and performing continuous data transmission across cells or across base stations based on the fifth information.

[0009] In one possible embodiment, the fifth information further includes at least one of the following: user equipment identification information; at least one third service information for providing information related to the second node and / or the third node providing services to the relevant user equipment; access layer reference configuration information; and at least one access layer configuration third information for providing access layer configuration provided by the second node and / or the third node for continuous data transmission to the relevant user equipment.

[0010] In one possible embodiment, the at least one third service-related information includes at least one of the following: base station identifier-related information; cell identifier-related information; tracking area identifier-related information; area-related information; and service time-related information.

[0011] In one possible embodiment, the service time-related information includes at least one of the following: start time; duration; and end time.

[0012] In one possible embodiment, the at least one access stratum configuration third related information is an incremental configuration based on the access stratum reference configuration related information.

[0013] In one possible embodiment, the method further includes: initiating a random access procedure; and after the random access is completed, not entering a connected state, and performing uplink and / or downlink data transmission.

[0014] In one possible embodiment, the method further includes: receiving a handover command from a second or third node; and continuing continuous data transmission in another cell or node according to the handover command.

[0015] In one possible embodiment, the method further includes sending a relevant indication to a second or third node for performing continuous data transmission before performing continuous data transmission.

[0016] According to another aspect of this disclosure, a method is provided performed by a second node in a wireless communication network, the method comprising: receiving fifth information or sixth information from a first node, the fifth information or sixth information including continuous data transmission related indication information; and sending the fifth information to a fourth node, the fifth information including continuous data transmission related indication information.

[0017] In one possible embodiment, the sixth information further includes at least one of the following: user equipment identification information; at least one third service information for providing information on the services provided by the second node and / or the third node to the relevant user equipment; and access layer reference configuration information.

[0018] In one possible embodiment, the method further includes: receiving first information from a first node; and sending second information to the first node; wherein the first information includes at least one of the following: user equipment identification information; continuous data transmission indication information; at least one first service information for providing information related to the second node providing services to the relevant user equipment; wherein the second information includes at least one of the following: user equipment identification information; access layer reference configuration information; at least one access layer configuration first information for providing access layer configuration provided by the second node for continuous data transmission to the relevant user equipment.

[0019] In one possible embodiment, the method further includes: sending third information to a third node; and receiving fourth information from the third node; wherein the third information includes at least one of the following: user equipment identification information; continuous data transmission indication information; at least one second service-related information for providing information related to the third node providing services to the relevant user equipment; and access layer reference configuration information; wherein the fourth information includes at least one of the following: user equipment identification information; and at least one second access layer configuration-related information for providing access layer configuration provided by the third node for continuous data transmission to the relevant user equipment.

[0020] In one possible embodiment, the method further includes: performing uplink and / or downlink continuous data transmission with a fourth node within at least one cell belonging to the second node, wherein the fourth node does not enter a connected state during the continuous data transmission.

[0021] In one possible embodiment, the method further includes: sending a handover command to a fourth node, the handover command being used by the fourth node to continue performing continuous data transmission in another cell or node.

[0022] In one possible embodiment, the method further includes: preparing the relevant user equipment context with at least one third node before receiving the random access preamble from the fourth node.

[0023] According to another aspect of this disclosure, a method performed by a third node in a wireless communication network is provided, the method comprising: receiving third information from a second node, the third information including continuous data transmission related indication information; and sending fourth information to the second node; wherein the fourth information includes at least one of the following: user equipment identification related information; and at least one access layer configuration second related information for providing the third node with access layer configuration for continuous data transmission of related user equipment.

[0024] In one possible embodiment, the third information further includes at least one of the following: user equipment identification information; at least one second service information for providing information related to the third node providing services to the relevant user equipment; and access layer reference configuration information.

[0025] According to another aspect of this disclosure, a method is provided performed by a first node in a wireless communication network, the method comprising: sending first information to a second node, the first information including continuous data transmission related indication information; and receiving second information from the first node; wherein the second information includes at least one of the following: user equipment identification related information; access layer reference configuration related information; and at least one access layer configuration first related information for providing access layer configuration provided by the second node for continuous data transmission of related user equipment.

[0026] In one possible embodiment, the first information further includes at least one of the following: user equipment identification information; and at least one first service information for providing information related to the second node providing services to the relevant user equipment.

[0027] According to another aspect of this disclosure, a node device in a wireless communication network is provided, the device comprising: a transceiver configured to transmit and receive signals; and a processor coupled to the transceiver and configured to perform any of the methods described above. Attached Figure Description

[0028] Figure 1 Here is an example of a wireless network;

[0029] Figure 2 Here is an example of a base station structure;

[0030] Figure 3 Example of a user device;

[0031] Figures 4A to 4C Various example implementations of node interaction.

[0032] Figure 5 This is a block diagram of the fifth node according to the present invention.

[0033] Figure 6 This is a block diagram of network nodes in a network according to this disclosure. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0035] Before proceeding with the following detailed description, it may be advantageous to define certain words and phrases used throughout the patent literature. The term “connection” and its derivatives refer to any direct or indirect communication between two or more elements, regardless of whether those elements are physically in contact with each other. The terms “transmit,” “receive,” and “transmit,” and their derivatives encompass both direct and indirect communication. The terms “comprise” and “include,” and their derivatives mean inclusion without limitation. The term “or” is concurrent, meaning both and / or. The phrase “associated with,” and its derivatives mean including, being included in, interconnected with, containing, being contained within, connected to or connected with, coupled to or coupled with, able to communicate with, cooperate with, intertwine, juxtapose, proximate, bound to or bound with, having, possessing attributes, having a relationship with, or having a relationship with, etc. The term “controller” means any device, system, or part thereof that controls at least one operation. Such a controller may be implemented in hardware or in a combination of hardware and software and / or firmware. The functionality associated with any particular controller, whether local or remote, can be centralized or distributed. The phrase "at least one" when used to list items means that different combinations of one or more of the listed items can be used, and it is possible that only one item in the list is needed. For example, "at least one of A, B, and C" includes any of the following combinations: A, B, C; A and B; A and C; B and C; and only A, only B, and only C. Similarly, the term "set" means one or more. Therefore, a set of items can be a single item or a set of two or more items.

[0036] Furthermore, the various functions described below can be implemented or supported by one or more computer programs, each function being formed by computer-readable program code and embodied in a computer-readable medium. The terms "application" and "program" refer to one or more computer programs, software components, instruction sets, procedures, functions, objects, classes, instances, associated data, or portions thereof suitable for implementation in appropriate computer-readable program code. The phrase "computer-readable program code" includes any type of computer code, including source code, object code, and executable code. The phrase "computer-readable medium" includes any type of medium accessible by a computer, such as read-only memory (ROM), random access memory (RAM), hard disk drive, compact disc (CD), digital video disc (DVD), or any other type of storage. "Non-transitory" computer-readable media excludes wired, wireless, optical, or other communication links that transmit transient electrical or other signals. Non-transitory computer-readable media includes media in which data can be permanently stored and media such as rewritable optical discs or erasable memory devices in which data can be stored and later rewritten.

[0037] Definitions for certain other words and phrases are provided throughout this patent document. Those skilled in the art will understand that, in many, if not the most, instances, such definitions apply to both prior and future use of the words and phrases defined in this way.

[0038] The figures and various embodiments included herein, used to illustrate the principles of this disclosure, are merely illustrative and should not be construed in any way as limiting the scope of this disclosure. Furthermore, those skilled in the art will understand that the principles of this disclosure can be implemented in any suitably arranged wireless communication system.

[0039] The following Figures 1 to 6 Various embodiments of this disclosure implemented in wireless communication systems are described. Figures 1 to 6 The description does not imply any physical or architectural limitations on the ways in which different embodiments can be implemented. Different embodiments of this disclosure can be implemented in any suitably arranged communication system.

[0040] Figure 1 An example wireless network according to an embodiment of this disclosure is shown. Figure 1 The embodiments of the wireless network shown are for illustrative purposes only. Other embodiments of the wireless network 100 may be used without departing from the scope of this disclosure.

[0041] like Figure 1As shown, the wireless network includes a base station (next generation nodeB, gNB or gNodeB) 101, gNB 102, and gNB 103. gNB 101 communicates with gNB 102 and gNB 103. gNB 101 also communicates with at least one network 130 such as the Internet, Internet Protocol (IP) networks, or other data networks.

[0042] gNB 102 provides wireless broadband access to network 130 to multiple first user equipments (UEs) within coverage area 120 of gNB 102. The multiple first UEs include UE 111, which may be located in a small business (SB); UE 112, which may be located in an enterprise (E); UE 113, which may be located in a WiFi hotspot (HS); UE 114, which may be located in a first residence (R1); UE 115, which may be located in a second residence (R2); and UE 116, which may be a mobile device (M) such as a cellular phone, wireless laptop, or wireless personal digital assistant (PDA). gNB 103 provides wireless broadband access to network 130 to multiple second UEs within coverage area 125 of gNB 103. The multiple second UEs include UE 115 and UE 116, and subscriber stations (SS, such as UEs) 117, 118, and 119. In some embodiments, one or more of gNBs 101-103 may communicate with each other and UEs 111-116 using existing wireless communication technologies, and one or more of UEs 111-119 may communicate directly with each other (e.g., UEs 117-119) using other existing or proposed wireless communication technologies.

[0043] Depending on the network type, the term "base station" or "BS" can refer to any component (or set of components) configured to provide wireless access to a network, such as a transmit point (TP), transmit-receive point (TRP), enhanced (or "evolved") base station (eNodeB or eNB), 5G base station (gNB), macro cell, femtocell, wireless fidelity (WiFi) access point (AP), or other wireless-capable devices. A base station can provide wireless access according to one or more wireless communication protocols, such as 3GPP 5G new radio (NR), Long Term Evolution (LTE), LTE-Advanced (LTE-A), high-speed packet access (HSPA), Wi-Fi 802.11a / b / g / n / ac, etc. For convenience, various names for base station type devices and functions may be used interchangeably in this patent document to refer to network infrastructure components that provide wireless access to remote terminals. Furthermore, depending on the network type, the term "User Equipment" (UE) can refer to any component such as a mobile station (MS), user station (SS), remote terminal, wireless terminal, receiving point, or user device. For convenience, various names for user equipment type devices and functions may be used interchangeably in this patent document to refer to remote wireless devices that wirelessly access the BS regardless of whether the UE is a mobile device (such as a mobile phone or smartphone) or is generally considered a fixed device (such as a desktop computer or vending machine).

[0044] The dashed lines indicate the approximate extent of coverage areas 120 and 125, which are shown as roughly circular for illustrative and explanatory purposes only. It should be clearly understood that coverage areas such as 120 and 125 associated with the gNB can have other shapes, including irregular shapes, depending on the configuration of the gNB and variations in the wireless environment associated with natural and man-made obstacles.

[0045] As described in more detail below, one or more of UEs 111-119 include circuitry, programming, or a combination thereof. In some embodiments, one or more of gNBs 101-103 include circuitry, programming, or a combination thereof.

[0046] although Figure 1 An example of a wireless network is shown, but more can be found on... Figure 1Various modifications can be made. For example, wireless network 100 can include any number of gNBs and any number of UEs in any suitable arrangement. Furthermore, gNB 101 can communicate directly with any number of UEs and provide those UEs with wireless broadband access to network 130. Similarly, each gNB 102-103 can communicate directly with network 130 and provide UEs with direct wireless broadband access to network 130. Additionally, gNBs 101, 102, and / or 103 can provide access to other or additional external networks, such as external telephone networks or other types of data networks.

[0047] Figure 2 An example base station according to an embodiment of the present disclosure is shown. Figure 2 The embodiment of gNB 102 shown is for illustrative purposes only, and Figure 1 gNBs 101 and 103 can have the same or similar configurations. However, gNBs come in a variety of configurations, and Figure 2 This disclosure is not intended to limit the scope to any particular implementation of gNB.

[0048] like Figure 2 As shown, gNB 102 includes multiple antennas 200a-200n, multiple radio frequency (RF) transceivers 201a-201n, transmit (TX) processing circuitry 203, and receive (RX) processing circuitry 204. gNB 102 also includes a controller / processor 205, a memory 206, and a backhaul or network interface (IF) 207.

[0049] RF transceivers 201a-201n receive incoming RF signals from antennas 200a-200n, such as signals transmitted by the UE in network 100. RF transceivers 201a-201n down-convert the incoming RF signals to generate intermediate frequency (IF) or baseband signals. The IF or baseband signal is sent to RX processing circuitry 204, which generates a processed baseband signal by filtering, decoding, and / or digitizing the baseband or IF signal. RX processing circuitry 204 sends the processed baseband signal to controller / processor 205 for further processing.

[0050] The TX processing circuit 203 receives analog or digital data (such as voice data, web data, email, or interactive video game data) from the controller / processor 205. The TX processing circuit 203 encodes, multiplexes, and / or digitizes the outgoing baseband data to generate a processed baseband or IF signal. RF transceivers 201a-201n receive the processed baseband or IF signal from the TX processing circuit 203 and up-convert the baseband or IF signal into an RF signal transmitted via antennas 201a-201n.

[0051] The controller / processor 205 may include one or more processors or other processing devices that control the overall operation of the gNB 102. For example, the controller / processor 205 may control the reception of forward channel signals and the transmission of reverse channel signals by the RF transceivers 201a-201n, the RX processing circuit 204, and the TX processing circuit 203, according to known principles. The controller / processor 205 may also support additional functions, such as more advanced wireless communication functions.

[0052] For example, the controller / processor 205 can support beamforming or directional routing operations, where signals emitted from multiple antennas 200a-200n are weighted differently to effectively redirect the emitted signals in the desired direction. Any of a variety of other functions can be supported in the gNB 102 via the controller / processor 205.

[0053] The controller / processor 205 is also capable of executing programs and other processes located in the memory 206, such as the operating system (OS). The controller / processor 205 can move data into or out of the memory 206 as needed by the executing process.

[0054] The controller / processor 205 is also connected to a backhaul or network interface 207. The backhaul or network interface 207 allows the gNB 102 to communicate with other devices or systems via a backhaul connection or over a network. Interface 207 can support communication via any suitable wired or wireless connection(s). For example, when the gNB 102 is implemented as part of a cellular communication system (such as a cellular communication system supporting 5G, LTE, or LTE-A), interface 207 can allow the gNB 102 to communicate with other gNBs via a wired or wireless backhaul connection. When the gNB 102 is implemented as an access point, interface 207 can allow the gNB 102 to communicate via a wired or wireless local area network or via a wired or wireless connection to a larger network (such as the Internet). Interface 207 includes any suitable structure that supports communication via wired or wireless connections such as Ethernet or RF transceivers.

[0055] Memory 206 is connected to controller / processor 205. A portion of memory 206 may include random access memory (RAM), and another portion of memory 206 may include flash memory or other read-only memory (ROM).

[0056] although Figure 2 An example of gNB 102 is shown, but it is possible to see more. Figure 2 Various changes can be made. For example, gNB 102 can include any number of Figure 2 Each component is shown in the diagram. As a specific example, an access point may include multiple interfaces 207, and the controller / processor 205 may support routing functionality to route data between different network addresses. As another specific example, although shown as a single instance of TX processing circuitry 203 and a single instance of RX processing circuitry 204, gNB102 may include multiple instances of each (such as one per RF transceiver). For example, Figure 2 The various components can be combined, further subdivided, or omitted, and additional components can be added as needed.

[0057] Figure 3 An example user equipment according to an embodiment of the present disclosure is shown. Figure 3 The embodiment of UE 116 shown is for illustrative purposes only, and Figure 1 UEs 111-115 and 117-119 can have the same or similar configurations. However, UEs appear in multiple configurations, and Figure 3 This disclosure is not intended to limit the scope to any particular implementation of the UE.

[0058] like Figure 3 As shown, UE 116 includes an antenna 301, a radio frequency (RF) transceiver 302, a TX processing circuit 303, a microphone 304, and a receive (RX) processing circuit 305. UE 116 also includes a speaker 306, a controller or processor 307, an input / output (I / O) interface (IF) 308, an input device 309, a touchscreen display 310, and memory 311. Memory 311 includes an OS 312 and one or more applications 313.

[0059] RF transceiver 302 receives incoming RF signals transmitted by gNB of network 100 from antenna 301. RF transceiver 302 down-converts the incoming RF signals to generate IF or baseband signals. The IF or baseband signals are sent to RX processing circuitry 305, which generates processed baseband signals by filtering, decoding, and / or digitizing the baseband or IF signals. RX processing circuitry 305 sends the processed baseband signals to speaker 306 (e.g., for voice data) or processor 307 for further processing (e.g., for web browsing data).

[0060] TX processing circuit 303 receives analog or digital voice data from microphone 304 or other outgoing baseband data (such as web data, email, or interactive video game data) from processor 307. TX processing circuit 303 encodes, multiplexes, and / or digitizes the outgoing baseband data to generate a processed baseband or IF signal. RF transceiver 302 receives the processed baseband or IF signal from TX processing circuit 303 and up-converts the baseband or IF signal into an RF signal transmitted via antenna 301.

[0061] Processor 307 may include one or more processors or other processing devices and executes OS 312 stored in memory 311 to control the overall operation of UE 116. For example, processor 307 may control the reception of forward channel signals and the transmission of reverse channel signals by RF transceiver 302, RX processing circuitry 305, and TX processing circuitry 303 according to known principles. In some embodiments, processor 307 includes at least one microprocessor or microcontroller.

[0062] Processor 307 is also capable of executing other processes and programs located in memory 311, such as processes for CSI (Channel State Information) reporting on the uplink channel. Processor 307 can move data into or out of memory 311 as needed for executing processes. In some embodiments, processor 307 is configured to execute application 313 based on OS 312 or in response to signals received from gNB or operator. Processor 307 is also coupled to I / O interface 308, which provides UE 116 with the ability to connect to other devices such as laptops and laptops. I / O interface 308 is the communication path between these accessories and processor 307.

[0063] The processor 307 is also connected to the touchscreen display 310. The user of the UE 116 can use the touchscreen display 310 to input data into the UE 116. The touchscreen display 310 can be a liquid crystal display, a light-emitting diode display, or other display capable of rendering text and / or at least limited graphics such as those from a website.

[0064] Memory 311 is connected to processor 307. A portion of memory 311 may include RAM, and another portion of memory 311 may include flash memory or other ROM.

[0065] although Figure 3 An example of UE 116 is shown, but it is possible to modify it. Figure 3 Make various changes. For example, Figure 3 The various components can be combined, further subdivided, or omitted, and additional components can be added as needed. As a specific example, processor 307 can be divided into multiple processors, such as one or more central processing units (CPUs) and one or more graphics processing units (GPUs). Moreover, although... Figure 3 The UE 116 is shown configured as a mobile phone or smartphone, but the UE can be configured to operate as other types of mobile or fixed devices.

[0066] Exemplary embodiments of this disclosure are further described below with reference to the accompanying drawings.

[0067] The text and accompanying drawings are provided by way of example only to aid in understanding this disclosure. They should not be construed as limiting the scope of this disclosure in any way. Although certain embodiments and examples have been provided, it will be apparent to those skilled in the art, based on the content disclosed herein, that changes may be made to the illustrated embodiments and examples without departing from the scope of this disclosure.

[0068] Before proceeding with the specific details, the following are some assumptions and definitions of this disclosure.

[0069] The message names in this publication are just examples; other message names can also be used.

[0070] The use of terms like "first," "second," etc., in the names of publicly available messages are merely examples and do not represent the execution order.

[0071] Detailed descriptions of steps that are not related to this disclosure have been omitted in this disclosure.

[0072] In this document, the steps in each process can be executed in combination or individually. The execution steps of each process are merely examples, and other possible execution orders are not excluded.

[0073] In this publication, the base station can be a 5G base station (such as gNB, ng-eNB), a 4G base station (such as eNB), a 6G base station, or other types of access nodes.

[0074] In this publication, data transmission refers to the receipt or sending of data.

[0075] In this disclosure, the non-connected state indicates that the user equipment is in an inactive or deactivated state.

[0076] One example is the Radio Resource Control (RRC) Inactive state, or indicating that the user equipment is in an idle state, an example of which is the RRC Idle state.

[0077] The nodes involved in this disclosure are:

[0078] First node: A node in the core network; in one example, this node is the Access and Mobility Management Function (AMF) node.

[0079] Second node: First base station, or centralized unit of base station, or control plane portion of centralized unit of base station.

[0080] The third node: the second base station, or the centralized unit of the base station, or the control plane portion of the centralized unit of the base station.

[0081] The fourth node: User Equipment (UE)

[0082] Fifth node: The third base station, or the centralized unit of the base station, or the control plane portion of the centralized unit of the base station.

[0083] This disclosure provides a method for node interaction that, compared to traditional methods, ensures data transmission of user devices in a disconnected state.

[0084] It should be noted that the data transmission of the user equipment in the disconnected state can refer to the user equipment being able to perform continuous data transmission across cells and / or base stations in the disconnected state, or it can refer to the user equipment being able to continue data transmission in the target cell or candidate cell when initial mobility occurs in the disconnected state, or it can refer to the user equipment being able to continue data transmission in the candidate cell when subsequent mobility occurs in the disconnected state. The following text will uniformly use "performing continuous data transmission across cells and / or base stations" to describe the beneficial effects.

[0085] Figure 4A An example method of node interaction according to this disclosure is shown. Figure 4A As shown,

[0086] Step 401: The first node sends first information to the second node, the first information being used to request / prepare user equipment context-related information.

[0087] The first information includes at least one of the following:

[0088] - User equipment identification information, used to identify user equipment.

[0089] - Continuous data transmission related indication information, used to indicate that the request is for the relevant user equipment to perform continuous data transmission across cells or base stations.

[0090] - First service-related information, used to provide information on the services provided by the second node to the relevant user equipment.

[0091] Optionally, the first service-related information may be a list of service information, which contains at least one service information.

[0092] Optionally, the service information includes at least one of the following:

[0093] - Base station identification information, used to identify base stations.

[0094] - Community identification information, used to identify the community being served.

[0095] - Tracking area identifier information, used to identify the tracking area.

[0096] -Regional information used to provide services to the designated area.

[0097] - Service time related information, used to provide time information for user equipment related to the service cell / tracking area / regional service.

[0098] Optionally, the service time-related information includes at least one of the following:

[0099] -Start time.

[0100] - Duration.

[0101] -End time.

[0102] Optionally, the first information may be included in the first interface message between the core network and the base station, such as the user equipment context request message, user equipment context establishment request message, user equipment context modification request message, continuous data transmission request message, etc.

[0103] In one possible implementation, the second node identifies the request for relevant user equipment to perform continuous data transmission across cells or base stations based on the continuous data transmission related indication information.

[0104] In one possible implementation, the second node identifies, based on the first service-related information, at least one cell / tracking area / region under the second node that provides information for continuous data transmission to the user equipment.

[0105] In one implementation: the second node determines at least one cell that provides continuous data transmission for the user equipment based on the first service-related information.

[0106] Step 402: After receiving the first information, the second node sends the second information to the first node according to the content of the first information. The second information is used to respond to user equipment context-related information.

[0107] Optionally, the second information includes at least one of the following:

[0108] - User equipment identification information, used to identify user equipment.

[0109] - Access layer reference configuration information, used to provide the second node with the access layer reference configuration for continuous data transmission of relevant user equipment.

[0110] - Access layer configuration first related information, used to provide the second node with access layer configuration for continuous data transmission of relevant user equipment.

[0111] Optionally, the second information may include message names from the first interface message, such as user equipment context response message, user equipment context establishment response message, user equipment context modification response message, continuous data transmission response message, etc.

[0112] Optionally, the first node identifies the reference configuration provided by the second node based on the access layer reference configuration information.

[0113] In one implementation: the access layer reference configuration information is contained in a container and sent to the first node. Subsequently, the first node can send the container containing the access layer reference configuration information to the third node.

[0114] In one possible implementation, the first node identifies the access layer configuration provided by the second node based on the first relevant information of the access layer configuration.

[0115] In one implementation: the access layer configuration first related information is contained in a container and sent to the first node. Subsequently, the first node can send the container containing the access layer configuration first related information to the second node.

[0116] The second node generates the access layer reference configuration information.

[0117] The second node generates the first related information of the access layer configuration based on the access layer reference configuration information. In one embodiment, the first related information of the access layer configuration is generated by performing incremental configuration (delta configuration) on the access layer reference configuration information.

[0118] In one implementation: the second node reserves the access layer reference configuration information.

[0119] In one implementation: the second node reserves the first relevant information for the access layer configuration.

[0120] Step 403: The first node sends third information to the third node, the third information being used to request / prepare user equipment context-related information.

[0121] Optionally, the third information includes at least one of the following:

[0122] - User equipment identification information, used to identify user equipment.

[0123] - Continuous data transmission related indication information, used to indicate that the request is for the relevant user equipment to perform continuous data transmission across cells or base stations.

[0124] - Second service-related information, used to provide information on the services provided by the third node and / or other nodes (such as the fifth node) to the relevant user equipment.

[0125] - Access layer reference configuration information, used to provide access layer reference configuration for continuous data transmission of relevant user equipment.

[0126] Optionally, the second service-related information may be a list of service information containing at least one service.

[0127] Optionally, the service information includes at least one of the following:

[0128] - Base station identification information, used to identify base stations.

[0129] - Community identification information, used to identify the community being served.

[0130] - Tracking area identifier information, used to identify the tracking area.

[0131] -Regional information used to provide services to the designated area.

[0132] - Service time related information, used to provide time information for user equipment related to the service cell / tracking area / regional service.

[0133] Optionally, the service time-related information includes at least one of the following:

[0134] -Start time.

[0135] - Duration.

[0136] -End time.

[0137] Optionally, the third information may be included in the first interface message, with message names such as User Equipment Context Request Message, User Equipment Context Establishment Request Message, User Equipment Context Modification Request Message, Continuous Data Transmission Request Message, etc.

[0138] In one possible implementation, the third node identifies the request for relevant user equipment to perform continuous data transmission across cells or base stations based on the continuous data transmission related indication information.

[0139] In one possible implementation, the third node identifies, based on the second service-related information, at least one cell / tracking area / region under the third node that provides information for continuous data transmission to the user equipment.

[0140] In one implementation: the third node determines at least one cell that provides continuous data transmission for the user equipment based on the second service-related information.

[0141] In one implementation: the third node reserves relevant information for the access layer reference configuration.

[0142] Step 404: After receiving the third information, the third node sends the fourth information to the first node according to the content of the third information. The fourth information is used to respond to user equipment context-related information.

[0143] Optionally, the fourth information includes at least one of the following:

[0144] - User equipment identification information, used to identify user equipment.

[0145] - Access layer configuration second related information, used to provide access layer configuration for continuous data transmission of relevant user equipment by the third node and / or other nodes (such as the fifth node).

[0146] -Uplink synchronization first configuration information, used by relevant user equipment to perform the early uplink synchronization process with candidate cells.

[0147] - Reference signal first configuration information, used to provide relevant user equipment with the service cell and / or candidate cell reference signal related configuration.

[0148] Optionally, the access layer configuration of the second related information may be a configuration list containing at least one configuration information.

[0149] Optionally, the configuration information includes at least one of the following: cell identifier information and access layer configuration.

[0150] Optionally, the uplink synchronization first configuration information can be an uplink synchronization configuration list, which contains at least one uplink synchronization configuration information.

[0151] The uplink synchronization configuration information, or the uplink synchronization first configuration information, includes at least one of the following:

[0152] - Frequency information, used to provide frequency-related information for performing morning uplink synchronization on candidate cells.

[0153] - Information related to the preamble sequence.

[0154] -Information related to power boost step size.

[0155] -Information regarding the maximum number of preamble transmissions.

[0156] -Information related to the random access response window.

[0157] Optionally, the first configuration information of the reference signal may be a reference signal configuration list, which contains at least one reference signal configuration information.

[0158] The reference signal configuration information, or the first reference signal configuration information, includes at least one of the following:

[0159] - Reference signal frequency information.

[0160] - Reference signal subcarrier spacing information.

[0161] -Reference signal period related information.

[0162] -Reference signal position information.

[0163] The fourth information may include messages from the first interface message, such as user equipment context response message, user equipment context establishment response message, user equipment context modification response message, continuous data transmission response message, etc.

[0164] In one possible implementation, the first node identifies the access layer configuration provided by the third node based on the second relevant information of the access layer configuration.

[0165] In one implementation: the access layer configuration second related information is contained in a container and sent to the first node. Subsequently, the first node can send the container containing the access layer configuration related information to the second node.

[0166] In one possible implementation, the third node generates access stratum configuration information associated with at least one cell that provides continuous data transmission for relevant user equipment, based on the access stratum reference configuration information. In one implementation, the access stratum configuration information is generated by performing delta configuration on the access stratum reference configuration information.

[0167] In one implementation: the third node reserves the access layer configuration for second related information.

[0168] In one implementation: the uplink synchronization first configuration information is contained in a container and sent to the first node. Subsequently, the first node can send the container containing the uplink synchronization configuration information to the second node.

[0169] In one implementation: the first configuration information of the reference signal is contained in a container and sent to the first node. Subsequently, the first node can send the container containing the reference signal configuration information to the second node.

[0170] Step 405: The first node sends fifth information to the second node, the fifth information being used to provide relevant information required by the user equipment to perform continuous data transmission.

[0171] Optionally, the fifth piece of information includes at least one of the following:

[0172] - User equipment identification information, used to identify user equipment.

[0173] - Continuous data transmission related indication information, used to indicate that the request is for the relevant user equipment to perform continuous data transmission across cells or base stations.

[0174] - First service-related information, used to provide information on the services provided by the second node to the relevant user equipment.

[0175] - Second service-related information, used to provide information on the services provided by the third node and / or other nodes (such as the fifth node) to the relevant user equipment.

[0176] - Access layer reference configuration information, used to provide access layer reference configuration for continuous data transmission of relevant user equipment.

[0177] - Access layer configuration first related information, used to provide the second node with access layer configuration for continuous data transmission of relevant user equipment.

[0178] - Access layer configuration second related information, used to provide access layer configuration for continuous data transmission of relevant user equipment by the third node and / or other nodes (such as the fifth node).

[0179] -Uplink synchronization first configuration information, used by relevant user equipment to perform the early uplink synchronization process with candidate cells.

[0180] - Reference signal first configuration information, used to provide relevant user equipment with the service cell and / or candidate cell reference signal related configuration.

[0181] Optionally, the first or second service-related information may be a list of service information containing at least one service information.

[0182] Optionally, the service information includes at least one of the following:

[0183] - Base station identification information, used to identify base stations.

[0184] - Community identification information, used to identify the community being served.

[0185] - Tracking area identifier information, used to identify the tracking area.

[0186] -Regional information used to provide services to the designated area.

[0187] - Service time related information, used to provide time information for user equipment related to the service cell / tracking area / regional service.

[0188] Optionally, the service time-related information includes at least one of the following:

[0189] -Start time.

[0190] - Duration.

[0191] -End time.

[0192] Optionally, the uplink synchronization first configuration information can be an uplink synchronization configuration list, which contains at least one uplink synchronization configuration information.

[0193] The uplink synchronization configuration information, or the uplink synchronization first configuration information, includes at least one of the following:

[0194] - Frequency information, used to provide frequency-related information for performing morning uplink synchronization on candidate cells.

[0195] - Information related to the preamble sequence.

[0196] -Information related to power boost step size.

[0197] -Information regarding the maximum number of preamble transmissions.

[0198] -Information related to the random access response window.

[0199] Optionally, the first configuration information of the reference signal may be a reference signal configuration list, which contains at least one reference signal configuration information.

[0200] The reference signal configuration information, or the first reference signal configuration information, includes at least one of the following:

[0201] - Reference signal frequency information.

[0202] - Reference signal subcarrier spacing information.

[0203] -Reference signal period related information.

[0204] -Reference signal position information.

[0205] Optionally, the fifth information may include message names from the first interface message, such as User Equipment Context Request Message, User Equipment Context Establishment Request Message, User Equipment Context Modification Request Message, Continuous Data Transmission Request Message, User Equipment Context Transmission Message, Continuous Data Transmission Information Message, etc.

[0206] In one possible implementation, the second node identifies the provided access layer reference configuration based on the access layer reference configuration related information.

[0207] In one implementation: the access layer reference configuration information is contained in a container and sent to the second node.

[0208] The second node identifies, based on the first service-related information, at least one cell / tracking area / region under the second node that provides information for continuous data transmission to the user equipment.

[0209] In one implementation: the first service-related information is contained in a container and sent to the second node.

[0210] The second node identifies the access layer configuration provided by the second node based on the first relevant information of the access layer configuration.

[0211] In one implementation: the access layer configuration first related information is contained in a container and sent to the second node.

[0212] In one implementation: the uplink synchronization first configuration information is contained in the container and sent to the second node.

[0213] In one implementation: the reference signal first configuration information is contained in the container and sent to the second node.

[0214] The second node identifies, based on the second service-related information, at least one cell / tracking area / region under the third node that provides information for continuous data transmission to the user equipment.

[0215] In one implementation: the second service-related information is contained in a container and sent to the second node.

[0216] The second node identifies the access layer configuration provided by the third node based on the second relevant information configured in the access layer configuration.

[0217] In one implementation: the access layer configuration second related information is contained in a container and sent to the second node.

[0218] In one implementation: the first service-related information is included in the access layer configuration of the first related information.

[0219] In one implementation: the second service-related information is included in the access layer configuration of the second related information.

[0220] Step 406: The second node sends the fifth information to the fourth node, which is used to provide the fourth node with relevant information required for the fourth node to perform continuous data transmission.

[0221] Optionally, the fifth information may include messages from the air interface, such as radio resource control reconfiguration messages, radio resource control release messages, radio resource control suspension messages, continuous data transmission information messages, downlink information transmission messages, etc.

[0222] The fourth node configures and / or stores information related to the access layer reference configuration.

[0223] The fourth node configures and / or stores information related to the first service.

[0224] The fourth node configures and / or stores the first relevant information of the access layer configuration.

[0225] The fourth node configures and / or stores information related to the second service.

[0226] The fourth node configures and / or stores the second relevant information of the access layer configuration.

[0227] The fourth node configures and / or stores the first configuration information for uplink synchronization.

[0228] The fourth node configures and / or stores the first configuration information of the reference signal.

[0229] In one implementation: the first service-related information is included in the access layer configuration of the first related information.

[0230] In one implementation: the second service-related information is included in the access layer configuration of the second related information.

[0231] In one implementation: the fifth information includes third service-related information, which includes the first service-related information and the second service-related information.

[0232] In one implementation: the fifth information includes access layer configuration third related information, which includes access layer configuration first related information and access layer configuration second related information.

[0233] In one implementation: after receiving the fifth information, the fourth node enters an inactive state or an idle state.

[0234] In one implementation: the fourth node sends a preamble to the corresponding candidate cell according to the uplink synchronization first configuration information, and receives the timing advance of the relevant candidate cell from the serving cell.

[0235] The fourth node identifies the fifth information based on the continuous data transmission related indication information, which is used by the relevant user equipment to perform continuous data transmission across cells or base stations.

[0236] Step 407, optionally, the fourth node initiates a random access procedure for the fourth node to perform continuous data transmission.

[0237] In another implementation: the fourth node can directly perform continuous data transmission without initiating a random access procedure.

[0238] In another implementation: the fourth node can perform continuous data transmission on another node (such as the third node) that is different from the second node, without initiating a random access procedure.

[0239] In another implementation: the fourth node may send an indication to the third node for performing continuous data transmission, and the fourth node performs continuous data transmission after sending the indication.

[0240] Step 408, optionally, the third node sends a handover command to the fourth node, for the third node to switch the fourth node to another cell or node.

[0241] In one implementation: the other cell to which the handover is made is a cell associated with the cell identifier information contained in the first or second service-related information.

[0242] In another implementation: the fourth node can directly perform continuous data transmission in any cell associated with the cell identifier information contained in the first or second service-related information, without initiating a random access procedure and / or receiving a handover command.

[0243] The above methods ensure that user equipment can perform continuous data transmission across cells and / or base stations.

[0244] Figure 4B An example method of node interaction according to this disclosure is shown. Figure 4B As shown,

[0245] Step 501: The first node sends the sixth information to the second node, which is used to trigger the continuous data transmission interaction process.

[0246] Optionally, the sixth piece of information includes at least one of the following:

[0247] - User equipment identification information, used to identify user equipment.

[0248] - Continuous data transmission related indication information, used to indicate that the sixth information is used for relevant user equipment to perform continuous data transmission across cells or base stations.

[0249] - Third service related information, used to provide information on the services provided by the second node and / or the third node and / or other nodes (such as the fifth node) to the relevant user equipment.

[0250] - Access layer reference configuration information, used to provide access layer reference configuration for continuous data transmission of relevant user equipment.

[0251] Optionally, the third service-related information may be a list of service information containing at least one service.

[0252] Optionally, the service information includes at least one of the following:

[0253] - Base station identification information, used to identify base stations.

[0254] - Community identification information, used to identify the community being served.

[0255] - Tracking area identifier information, used to identify the service tracking area.

[0256] -Regional information used to provide services to the designated area.

[0257] - Service time related information, used to provide time information for user equipment related to the service cell / tracking area / regional service.

[0258] Optionally, the service time-related information includes at least one of the following:

[0259] -Start time.

[0260] - Duration.

[0261] -End time.

[0262] Optionally, the sixth information may be included in the first interface message, with message names such as User Equipment Context Request Message, User Equipment Context Establishment Request Message, User Equipment Context Modification Request Message, Continuous Data Transmission Request Message, Continuous Data Transmission Message, etc.

[0263] In one possible implementation, the second node identifies the request for relevant user equipment to perform continuous data transmission across cells or base stations based on the continuous data transmission related indication information.

[0264] The second node identifies, based on the third service-related information, at least one cell / tracking area / region under the second node and / or the third node that provides information for continuous data transmission to the user equipment.

[0265] In one implementation: the second node determines at least one cell that provides continuous data transmission for the user equipment based on the third service-related information.

[0266] In one implementation: the second node reserves the access layer reference configuration information.

[0267] In one implementation: the first node determines the access stratum reference configuration related information and includes it in the sixth information before sending it to the second node. In another implementation: the second node determines the access stratum reference configuration related information (in this case, the sixth information does not include the access stratum reference configuration related information).

[0268] In one implementation: the third service-related information includes the first service-related information and / or the second service-related information, and the first service-related information and / or the second service-related information is a subset of the third service-related information.

[0269] Step 502: The second node sends third information to the third node, the third information being used to request / prepare user equipment context-related information.

[0270] Optionally, the third information includes at least one of the following:

[0271] - User equipment identification information, used to identify user equipment.

[0272] - Continuous data transmission related indication information, used to indicate that the request is for the relevant user equipment to perform continuous data transmission across cells or base stations.

[0273] - Second service-related information, used to provide information on the services provided by the third node and / or other nodes (such as the fifth node) to the relevant user equipment.

[0274] - Access layer reference configuration information, used to provide access layer reference configuration for continuous data transmission of relevant user equipment.

[0275] Optionally, the second service-related information may be a list of service information containing at least one service.

[0276] Optionally, the service information includes at least one of the following:

[0277] - Base station identification information, used to identify base stations.

[0278] - Community identification information, used to identify the community being served.

[0279] - Tracking area identifier information, used to identify the tracking area.

[0280] -Regional information used to provide services to the designated area.

[0281] - Service time related information, used to provide time information for user equipment related to the service cell / tracking area / regional service.

[0282] Optionally, the service time-related information includes at least one of the following:

[0283] -Start time.

[0284] - Duration.

[0285] -End time.

[0286] Optionally, the third information may be included in the second interface message between base stations, with message names such as User Equipment Context Request Message, User Equipment Context Establishment Request Message, User Equipment Context Modification Request Message, Continuous Data Transmission Request Message, User Equipment Context Transmission Message, User Equipment Context Preparation Message, User Equipment Context Preparation Request Message, etc.

[0287] In one possible implementation, the third node identifies the request for relevant user equipment to perform continuous data transmission across cells or base stations based on the continuous data transmission related indication information.

[0288] The third node identifies, based on the second service-related information, at least one cell / tracking area / region under the third node that provides information for continuous data transmission to the user equipment.

[0289] In one implementation: the third node determines at least one cell that provides continuous data transmission for the user equipment based on the second service-related information.

[0290] In one implementation: the third node reserves relevant information for the access layer reference configuration.

[0291] Step 503: After receiving the third information, the third node sends the fourth information to the second node according to the content of the third information. The fourth information is used to respond to / provide user equipment context-related information.

[0292] Optionally, the fourth information includes at least one of the following:

[0293] - User equipment identification information, used to identify user equipment.

[0294] - Access layer configuration second related information, used to provide access layer configuration for continuous data transmission of relevant user equipment by the third node and / or other nodes (such as the fifth node).

[0295] -Uplink synchronization first configuration information, used by relevant user equipment to perform the early uplink synchronization process with candidate cells.

[0296] - Reference signal first configuration information, used to provide relevant user equipment with the service cell and / or candidate cell reference signal related configuration.

[0297] Optionally, the access layer configuration of the second related information may be a configuration list containing at least one configuration information.

[0298] Optionally, the configuration information includes at least one of the following: cell identifier information and access layer configuration.

[0299] Optionally, the uplink synchronization first configuration information can be an uplink synchronization configuration list, which contains at least one uplink synchronization configuration information.

[0300] The uplink synchronization configuration information, or the uplink synchronization first configuration information, includes at least one of the following:

[0301] - Frequency information, used to provide frequency-related information for performing morning uplink synchronization on candidate cells.

[0302] - Information related to the preamble sequence.

[0303] -Information related to power boost step size.

[0304] -Information regarding the maximum number of preamble transmissions.

[0305] -Information related to the random access response window.

[0306] Optionally, the first configuration information of the reference signal may be a reference signal configuration list, which contains at least one reference signal configuration information.

[0307] The reference signal configuration information, or the first reference signal configuration information, includes at least one of the following:

[0308] - Reference signal frequency information.

[0309] - Reference signal subcarrier spacing information.

[0310] -Reference signal period related information.

[0311] -Reference signal position information.

[0312] Optionally, the fourth information may include messages from the second interface message, such as user equipment context response message, user equipment context establishment response message, user equipment context modification response message, continuous data transmission response message, user equipment context transmission confirmation message, user equipment context preparation confirmation message, user equipment context preparation response message, etc.

[0313] In one possible implementation, the second node identifies the access layer configuration provided by the third node based on the second relevant information of the access layer configuration.

[0314] In one implementation: the access layer configuration information is contained within a container and sent to the second node. Subsequently, the second node can send the container containing the access layer configuration information to the fourth node.

[0315] In one implementation: the uplink synchronization first configuration information is contained within a container and sent to the second node. Subsequently, the second node can send the container containing the uplink synchronization configuration information to the fourth node.

[0316] In one implementation: the first configuration information of the reference signal is contained in a container and sent to the second node. Subsequently, the second node can send the container containing the reference signal configuration information to the fourth node.

[0317] The third node generates access layer configuration information associated with at least one cell that provides continuous data transmission for relevant user equipment, based on the access layer reference configuration information. In one embodiment, the access layer configuration information is generated by performing delta configuration on the access layer reference configuration information.

[0318] In one implementation: the third node reserves the access layer configuration for second related information.

[0319] Step 504: The second node sends the fifth information to the fourth node, which is used to provide the fourth node with relevant information required for the fourth node to perform continuous data transmission.

[0320] Optionally, the fifth piece of information includes at least one of the following:

[0321] - User equipment identification information, used to identify user equipment.

[0322] - Continuous data transmission related indication information, used to indicate that the fifth information is used for relevant user equipment to perform continuous data transmission across cells or base stations.

[0323] - First service-related information, used to provide information on the services provided by the second node to the relevant user equipment.

[0324] - Second service-related information, used to provide information on the services provided by the third node and / or other nodes (such as the fifth node) to the relevant user equipment.

[0325] - Access layer reference configuration information, used to provide access layer reference configuration for continuous data transmission of relevant user equipment.

[0326] - Access layer configuration first related information, used to provide the second node with access layer configuration for continuous data transmission of relevant user equipment.

[0327] - Access layer configuration second related information, used to provide access layer configuration for continuous data transmission of relevant user equipment by the third node and / or other nodes (such as the fifth node).

[0328] -Uplink synchronization first configuration information, used by relevant user equipment to perform the early uplink synchronization process with candidate cells.

[0329] - Reference signal first configuration information, used to provide relevant user equipment with the service cell and / or candidate cell reference signal related configuration.

[0330] Optionally, the first or second service-related information may be a list of service information containing at least one service information.

[0331] Optionally, the service information includes at least one of the following:

[0332] - Base station identification information, used to identify base stations.

[0333] - Community identification information, used to identify the community being served.

[0334] - Tracking area identifier information, used to identify the tracking area.

[0335] -Regional information used to provide services to the designated area.

[0336] - Service time related information, used to provide time information for user equipment related to the service cell / tracking area / regional service.

[0337] Optionally, the service time-related information includes at least one of the following:

[0338] -Start time.

[0339] - Duration.

[0340] -End time.

[0341] Optionally, the uplink synchronization first configuration information can be an uplink synchronization configuration list, which contains at least one uplink synchronization configuration information.

[0342] The uplink synchronization configuration information, or the uplink synchronization first configuration information, includes at least one of the following:

[0343] - Frequency information, used to provide frequency-related information for performing morning uplink synchronization on candidate cells.

[0344] - Information related to the preamble sequence.

[0345] -Information related to power boost step size.

[0346] -Information regarding the maximum number of preamble transmissions.

[0347] -Information related to the random access response window.

[0348] Optionally, the first configuration information of the reference signal may be a reference signal configuration list, which contains at least one reference signal configuration information.

[0349] The reference signal configuration information, or the first reference signal configuration information, includes at least one of the following:

[0350] - Reference signal frequency information.

[0351] - Reference signal subcarrier spacing information.

[0352] -Reference signal period related information.

[0353] -Reference signal position information.

[0354] Optionally, the fifth information may include messages from the air interface, such as radio resource control reconfiguration messages, radio resource control release messages, radio resource control suspension messages, continuous data transmission information messages, downlink information transmission messages, etc.

[0355] The fourth node configures and / or stores information related to the access layer reference configuration.

[0356] The fourth node configures and / or stores information related to the first service.

[0357] The fourth node configures and / or stores the first relevant information of the access layer configuration.

[0358] The fourth node configures and / or stores information related to the second service.

[0359] The fourth node configures and / or stores the second relevant information of the access layer configuration.

[0360] The fourth node configures and / or stores the first configuration information for uplink synchronization.

[0361] The fourth node configures and / or stores the first configuration information of the reference signal.

[0362] In one implementation: the first service-related information is included in the access layer configuration of the first related information.

[0363] In one implementation: the second service-related information is included in the access layer configuration of the second related information.

[0364] In one implementation: the fifth information includes third service-related information, which includes the first service-related information and the second service-related information.

[0365] In one implementation: the fifth information includes access layer configuration third related information, which includes access layer configuration first related information and access layer configuration second related information.

[0366] In one implementation: after receiving the fifth information, the fourth node enters an inactive state or an idle state.

[0367] In one implementation: the fourth node sends a preamble to the corresponding candidate cell according to the uplink synchronization first configuration information, and receives the timing advance of the relevant candidate cell from the serving cell.

[0368] The fourth node identifies the fifth information based on the continuous data transmission related indication information, which is used by the relevant user equipment to perform continuous data transmission across cells or base stations.

[0369] Step 505, optionally, the fourth node initiates a random access procedure for the fourth node to perform continuous data transmission.

[0370] In another implementation: the fourth node can directly perform continuous data transmission without initiating a random access procedure.

[0371] In another implementation: the fourth node can perform continuous data transmission on another node (such as the third node) that is different from the second node, without initiating a random access procedure.

[0372] In another implementation: the fourth node may send an indication to the third node for performing continuous data transmission, and the fourth node performs continuous data transmission after sending the indication.

[0373] Step 506, optionally, the third node sends a handover command to the fourth node, for the third node to switch the fourth node to another cell or node.

[0374] In one implementation: the other cell to which the handover is made is a cell associated with the cell identifier information contained in the first or second service-related information.

[0375] In another implementation: the fourth node can directly perform continuous data transmission in any cell associated with the cell identifier information contained in the first or second service-related information, without initiating a random access procedure and / or receiving a handover command.

[0376] The above methods ensure that user equipment can perform continuous data transmission across cells and / or base stations.

[0377] Figure 4C An example method of node interaction according to this disclosure is shown. Figure 4C As shown,

[0378] Step 601: The second node sends the third information to the third node. The third information is used to request / prepare user equipment context-related information, or to request / prepare relevant configuration information for the user equipment to perform cross-cell continuous data transmission in a disconnected state.

[0379] Step 602, the third node sends the fourth information to the second node. The fourth information is used to respond to / provide user equipment context-related information, or to respond to / provide relevant configuration information for the user equipment to perform cross-cell continuous data transmission in a non-connected state.

[0380] Step 603: The second node sends the third information to the fifth node. The third information is used to request / prepare user equipment context-related information, or to request / prepare relevant configuration information for the user equipment to perform cross-cell continuous data transmission in a disconnected state.

[0381] Step 604: The fifth node sends the fourth information to the second node. The fourth information is used to respond to / provide user equipment context-related information, or to respond to / provide relevant configuration information for the user equipment to perform cross-cell continuous data transmission in a non-connected state.

[0382] It is worth mentioning that the third information sent in step 601 and step 603 is different. Similarly, the fourth information sent in step 602 and step 604 is different.

[0383] The third information mentioned in steps 601 and 603 includes at least one of the following:

[0384] - User equipment identification information, used to identify user equipment.

[0385] - Continuous data transmission related indication information, used to indicate that the request is for the relevant user equipment to perform continuous data transmission across cells or base stations. This information may be named as follows:

[0386] continuous data transmission indication, subsequent data transmission

[0387] indication, continuous small data transmission indication, subsequent

[0388] Information such as "small data transmission indication" is beneficial because it helps third or fifth nodes configure configuration-related information for continuous data transmission when user equipment in a non-connectivity state accesses the cell, reducing data transmission interruptions during user equipment access.

[0389] - Second service-related information, used to provide information on the services provided by the third node and / or other nodes (such as the fifth node) to the relevant user equipment.

[0390] - Access layer reference configuration information, used to provide access layer reference configuration for continuous data transmission of relevant user equipment.

[0391] Optionally, the second service-related information may be a list of service information containing at least one service.

[0392] Optionally, the service information includes at least one of the following:

[0393] - Base station identification information, used to identify base stations.

[0394] - Community identification information, used to identify the community being served.

[0395] - Tracking area identifier information, used to identify the tracking area.

[0396] -Regional information used to provide services to the designated area.

[0397] - Service time related information, used to provide time information for user equipment related to the service cell / tracking area / regional service.

[0398] Optionally, the service time-related information includes at least one of the following:

[0399] -Start time.

[0400] - Duration.

[0401] -End time.

[0402] The third information may be included in the first interface message, and the message name may be such as User Equipment Context Request Message, User Equipment Context Establishment Request Message, User Equipment Context Modification Request Message, Continuous Data Transmission Request Message, Subsequent Data Transmission Request Message, etc.

[0403] The third node identifies the request as being used by the relevant user equipment to perform continuous data transmission across cells or base stations, based on the continuous data transmission related indication information.

[0404] Upon receiving the continuous data transmission related indication information, the third or fifth node will consider the third information to be for requesting configuration of continuous data transmission across cells or base stations for a user equipment in a disconnected state. Furthermore, if the third information contains at least one cell identifier-related information, the indication information also indicates that continuous data transmission is requested when configuring access to at least one cell indicated by the at least one cell identifier information for the user equipment, and the fourth information also contains corresponding at least one cell identifier information to indicate that the fourth information is for at least one cell indicated by the at least one cell identifier information.

[0405] In one implementation: the continuous data transmission related indication information can be an explicit indication information; in another implementation: the continuous data transmission related indication information can be an implicit indication information, if the third information includes the access layer reference configuration related information, then it implicitly indicates that the second node requests configuration of continuous data transmission of the user equipment.

[0406] The third or fifth node identifies, based on the second service-related information, at least one cell / tracking area / region under the third or fifth node that provides information for continuous data transmission to the user equipment.

[0407] The third or fifth node determines, based on the second service-related information, at least one cell that provides continuous data transmission for the user equipment.

[0408] The third or fifth node reserves relevant information for the access layer reference configuration.

[0409] The fourth information mentioned in steps 602 and 604 includes at least one of the following:

[0410] - User equipment identification information, used to identify user equipment.

[0411] - Access layer configuration second related information, used to provide access layer configuration for continuous data transmission of relevant user equipment by the third node and / or other nodes (such as the fifth node).

[0412] - Uplink synchronization first configuration information, used by relevant user equipment to perform the early uplink synchronization process with candidate cells. This information may be named UL sync configuration or early sync.

[0413] Configuration information, such as early UL sync configuration, etc. The beneficial effect of this information is that it provides the fourth node with relevant configuration information for uplink synchronization with candidate cells in advance, allowing the fourth node to perform uplink transmissions for uplink synchronization with candidate cells ahead of time.

[0414] This reduces the interruption of data transmission when user equipment subsequently accesses candidate cells.

[0415] - Reference signal first configuration information, used to provide relevant user equipment with the service cell and / or candidate cell reference signal related configuration.

[0416] Optionally, the access layer configuration of the second related information may be a configuration list containing at least one configuration information.

[0417] Optionally, the configuration information includes at least one of the following: cell identifier information and access layer configuration.

[0418] Optionally, the uplink synchronization first configuration information can be an uplink synchronization configuration list, which contains at least one uplink synchronization configuration information.

[0419] The uplink synchronization configuration information, or the uplink synchronization first configuration information, includes at least one of the following:

[0420] - Frequency information, used to provide frequency-related information for performing morning uplink synchronization on candidate cells.

[0421] Information names, such as frequencyInfo, etc.

[0422] - Preamble sequence related information. Information names include, for example, prach-RootSequenceIndex.

[0423] - Random access channel subcarrier spacing. Information name, such as PRACH - SubcarrierSpacing, etc.

[0424] - Uplink and downlink configuration information. Information names include TDD-UL-DL-Config, etc.

[0425] - Timing-related information. The timing-related information includes at least one of the following: a mask index used for random access resource selection, named such as physical random access channel mask.

[0426] index, etc.; the corresponding SSB or CSI-RS index SSB / CSIRS-index; the preamble index ra-PreambleIndex; the number of SSBs corresponding to each RACH timing, and the name such as ssb-PerRACH-Occasion, etc.

[0427] - Information related to the random access configuration index. Information names include, for example, prach-ConfigurationIndex.

[0428] - The preamble receives the target power information. The information name is something like `preambleReceivedTargetPower`.

[0429] - Information related to power ramp-up step size. Information names include, for example, powerRampingStep.

[0430] - Information related to the maximum number of preamble transmissions. Information names include, for example, `preambleTransMax`.

[0431] - Information related to the random access response window. Information names include ra-ResponseWindow, etc.

[0432] Optionally, the first configuration information of the reference signal may be a reference signal configuration list, which contains at least one reference signal configuration information.

[0433] The reference signal configuration information, or the first reference signal configuration information, includes at least one of the following:

[0434] - Reference signal frequency information. Information names include ssb-Frequency, etc.

[0435] - Reference signal subcarrier spacing information. Information names include, for example, subcarrierSpacing.

[0436] - Reference signal period related information. Information names include ssb-Periodicity, etc.

[0437] - Reference signal position information. Information names include, for example, ssb-PositionsInBurst.

[0438] Optionally, the fourth information may include messages from the second interface message, such as user equipment context response message, user equipment context establishment response message, user equipment context modification response message, continuous data transmission response message, subsequent data transmission response message, user equipment context transmission confirmation message, user equipment context preparation confirmation message, user equipment context preparation response message, etc.

[0439] The second node identifies the access layer configuration provided by the third or fifth node based on the second relevant information configured in the access layer configuration.

[0440] In one implementation: the access layer configuration information is contained within a container and sent to the second node. Subsequently, the second node can send the container containing the access layer configuration information to the fourth node.

[0441] If the fourth information contains the first uplink synchronization configuration information, the second node considers the generated uplink synchronization information to be for a candidate cell accepted by the third or fifth node.

[0442] In one implementation: the uplink synchronization first configuration information is contained within a container and sent to the second node. Subsequently, the second node can send the container containing the uplink synchronization configuration information to the fourth node.

[0443] In one implementation: the uplink synchronization first configuration information is information provided separately for different cells; in another implementation: the uplink synchronization first configuration information is information shared by all candidate cells in the third node or the fifth node.

[0444] In one implementation: the first configuration information of the reference signal is contained in a container and sent to the second node. Subsequently, the second node can send the container containing the reference signal configuration information to the fourth node.

[0445] If the third information contains information related to the access layer reference configuration, the third node or the fifth node will consider the access layer reference configuration information when generating the second information related to the access layer configuration contained in the fourth information.

[0446] The third or fifth node generates access layer configuration information associated with at least one cell that provides continuous data transmission for relevant user equipment, based on the access layer reference configuration information. In one embodiment, the access layer configuration information is generated by performing delta configuration on the access layer reference configuration information.

[0447] The third or fifth node reserves the second relevant information for the access layer configuration.

[0448] Step 605: The second node sends a seventh message to the third node, the seventh message being used to provide the third node with relevant configuration information prepared by the fifth node.

[0449] The seventh piece of information includes at least one of the following:

[0450] - User equipment identification information, used to identify user equipment.

[0451] - Fourth service-related information, used to provide the fifth node with relevant information for providing services to relevant user equipment.

[0452] -Uplink synchronization second configuration information, used by relevant user equipment to perform the early uplink synchronization process with the candidate cells under the fifth node.

[0453] Optionally, the fourth service-related information may be a list of service information containing at least one service information.

[0454] Optionally, the service information includes at least one of the following:

[0455] - Base station identification information, used to identify base stations.

[0456] - Community identification information, used to identify the community being served.

[0457] - Tracking area identifier information, used to identify the tracking area.

[0458] -Regional information used to provide services to the designated area.

[0459] - Service time related information, used to provide time information for user equipment related to the service cell / tracking area / regional service.

[0460] Optionally, the service time-related information includes at least one of the following:

[0461] -Start time.

[0462] - Duration.

[0463] -End time.

[0464] Optionally, the uplink synchronization second configuration information can be an uplink synchronization configuration list, which contains at least one uplink synchronization configuration information.

[0465] The uplink synchronization configuration information, or the second uplink synchronization configuration information, includes at least one of the following:

[0466] - Frequency information, used to provide frequency-related information for performing morning uplink synchronization on candidate cells.

[0467] Information names, such as frequencyInfo, etc.

[0468] - Preamble sequence related information. Information names include, for example, prach-RootSequenceIndex.

[0469] - Random access channel subcarrier spacing. Information name, such as PRACH - SubcarrierSpacing, etc.

[0470] - Uplink and downlink configuration information. Information names include TDD-UL-DL-Config, etc.

[0471] - Timing-related information. The timing-related information includes at least one of the following: a mask index used for random access resource selection, named such as physical random access channel mask.

[0472] index, etc.; the corresponding SSB or CSI-RS index SSB / CSIRS-index; the preamble index ra-PreambleIndex; the number of SSBs corresponding to each RACH timing, and the name such as ssb-PerRACH-Occasion, etc.

[0473] - Information related to the random access configuration index. Information names include, for example, prach-ConfigurationIndex.

[0474] - The preamble receives the target power information. The information name is something like `preambleReceivedTargetPower`.

[0475] - Information related to power ramp-up step size. Information names include, for example, powerRampingStep.

[0476] - Information related to the maximum number of preamble transmissions. Information names include, for example, `preambleTransMax`.

[0477] - Information related to the random access response window. Information names include ra-ResponseWindow, etc.

[0478] Optionally, the seventh information may be included in the second interface message, with message names such as User Equipment Context Notification Message, Continuous Data Transmission Notification Message, User Equipment Context Transmission Notification Message, Continuous Data Transmission Information Notification Message, User Equipment Context Update Message, Continuous Data Transmission Update Message, User Equipment Context Transmission Update Message, Continuous Data Transmission Information Update Message, etc.

[0479] The third node identifies, based on the fourth service-related information, at least one cell / tracking area / region under the fifth node that provides information for continuous data transmission to the user equipment.

[0480] If the fourth service-related information contained in the seventh information includes at least one cell identifier-related information, the third node considers that the fifth node accepts the cell corresponding to the at least one cell identifier-related information as a candidate cell.

[0481] The third node identifies the configuration-related information prepared by the fifth node for early uplink synchronization based on the uplink synchronization second configuration information.

[0482] In one implementation: the uplink synchronization second configuration information included in the seventh information is the same as the uplink synchronization first configuration information included in the fourth information in step 604.

[0483] It should be noted that steps 603-605 above are just one example.

[0484] In another possible implementation: step 603 includes the third information, which is sent from the third node to the fifth node; step 604 includes the fourth information and the seventh information, which are sent from the fifth node to the third node.

[0485] In another possible implementation: step 603 includes the third information, which is sent from the third node to the fifth node; step 604 includes the fourth information, which is sent from the fifth node to the third node; step 605 includes the seventh information, which is sent from the fifth node to the third node.

[0486] In another possible implementation: step 603 includes the third information, which is sent from the second node to the fifth node; step 604 includes the fourth information, which is sent from the fifth node to the second node; step 605 includes the seventh information, which is sent from the fifth node to the third node.

[0487] Step 606: The second node sends the fifth information to the fourth node. Optionally, after receiving the fifth information, the fourth node enters a disconnected state.

[0488] The fifth piece of information includes at least one of the following:

[0489] - User equipment identification information, used to identify user equipment.

[0490] - Continuous data transmission related indication information, used to indicate that the fifth information is sufficient for the relevant user equipment to perform continuous data transmission across cells or base stations. This information may be named as follows:

[0491] continuous data transmission indication, subsequent data transmission

[0492] indication, continuous small data transmission indication, subsequent

[0493] Small data transmission indication, etc. The beneficial effect of this information is that it provides the fourth node with configuration-related information for continuous data transmission when accessing a cell in a disconnected state.

[0494] Reduce data transmission interruptions when the fourth node accesses the cell.

[0495] - First service-related information, used to provide information on the services provided by the second node to the relevant user equipment.

[0496] - Second service-related information, used to provide information on the services provided by the third node and / or other nodes (such as the fifth node) to the relevant user equipment.

[0497] - Access layer reference configuration information, used to provide access layer reference configuration for continuous data transmission of relevant user equipment.

[0498] - Access layer configuration first related information, used to provide the second node with access layer configuration for continuous data transmission of relevant user equipment.

[0499] - Access layer configuration second related information, used to provide access layer configuration for continuous data transmission of relevant user equipment by the third node and / or other nodes (such as the fifth node).

[0500] - Uplink synchronization first configuration information, used by relevant user equipment to perform the early uplink synchronization process with candidate cells. This information may be named UL sync configuration or early sync.

[0501] Configuration information, such as early UL sync configuration, etc. The beneficial effect of this information is that it provides the fourth node with relevant configuration information for uplink synchronization with candidate cells in advance, allowing the fourth node to perform uplink transmissions for uplink synchronization with candidate cells ahead of time.

[0502] This reduces the interruption of data transmission when user equipment subsequently accesses candidate cells.

[0503] - Reference signal first configuration information, used to provide relevant user equipment with the service cell and / or candidate cell reference signal related configuration.

[0504] Optionally, the first or second service-related information may be a list of service information containing at least one service information.

[0505] Optionally, the service information includes at least one of the following:

[0506] - Base station identification information, used to identify base stations.

[0507] - Community identification information, used to identify the community being served.

[0508] - Tracking area identifier information, used to identify the tracking area.

[0509] -Regional information used to provide services to the designated area.

[0510] - Service time related information, used to provide time information for user equipment related to the service cell / tracking area / regional service.

[0511] Optionally, the service time-related information includes at least one of the following:

[0512] -Start time.

[0513] - Duration.

[0514] -End time.

[0515] Optionally, the uplink synchronization first configuration information can be an uplink synchronization configuration list, which contains at least one uplink synchronization configuration information.

[0516] The uplink synchronization configuration information, or the uplink synchronization first configuration information, includes at least one of the following:

[0517] - Frequency information, used to provide frequency-related information for performing morning uplink synchronization on candidate cells.

[0518] Information names, such as frequencyInfo, etc.

[0519] - Preamble sequence related information. Information names include, for example, prach-RootSequenceIndex.

[0520] - Random access channel subcarrier spacing. Information name, such as PRACH - SubcarrierSpacing, etc.

[0521] - Uplink and downlink configuration information. Information names include TDD-UL-DL-Config, etc.

[0522] - Timing-related information. The timing-related information includes at least one of the following: a mask index used for random access resource selection, named such as physical random access channel mask.

[0523] index, etc.; the corresponding SSB or CSI-RS index SSB / CSIRS-index; the preamble index ra-PreambleIndex; the number of SSBs corresponding to each RACH timing, and the name such as ssb-PerRACH-Occasion, etc.

[0524] - Information related to the random access configuration index. Information names include, for example, prach-ConfigurationIndex.

[0525] - The preamble receives the target power information. The information name is something like `preambleReceivedTargetPower`.

[0526] - Information related to power ramp-up step size. Information names include, for example, powerRampingStep.

[0527] - Information related to the maximum number of preamble transmissions. Information names include, for example, `preambleTransMax`.

[0528] - Information related to the random access response window. Information names include ra-ResponseWindow, etc.

[0529] Optionally, the first configuration information of the reference signal may be a reference signal configuration list, which contains at least one reference signal configuration information.

[0530] The reference signal configuration information, or the first reference signal configuration information, includes at least one of the following:

[0531] - Reference signal frequency information. Information names include ssb-Frequency, etc.

[0532] - Reference signal subcarrier spacing information. Information names include, for example, subcarrierSpacing.

[0533] - Reference signal period related information. Information names include ssb-Periodicity, etc.

[0534] - Reference signal position information. Information names include, for example, ssb-PositionsInBurst.

[0535] Optionally, the fifth information may include messages from the air interface, such as radio resource control reconfiguration messages, radio resource control release messages, radio resource control suspension messages, continuous data transmission information messages, downlink information transmission messages, etc.

[0536] The fourth node configures and / or stores information related to the access layer reference configuration.

[0537] The fourth node configures and / or stores information related to the first service.

[0538] The fourth node configures and / or stores the first relevant information of the access layer configuration.

[0539] The fourth node configures and / or stores information related to the second service.

[0540] The fourth node configures and / or stores the second relevant information of the access layer configuration.

[0541] The fourth node configures and / or stores the first configuration information for uplink synchronization.

[0542] The fourth node configures and / or stores the first configuration information of the reference signal.

[0543] In one implementation: the first service-related information is included in the access layer configuration of the first related information.

[0544] In one implementation: the second service-related information is included in the access layer configuration of the second related information.

[0545] In one implementation: the fifth information includes third service-related information, which includes the first service-related information and the second service-related information.

[0546] In one implementation: the fifth information includes access layer configuration third related information, which includes access layer configuration first related information and access layer configuration second related information.

[0547] After receiving the fifth information, the fourth node enters an inactive or idle state.

[0548] The fourth node sends a preamble to the corresponding candidate cell according to the uplink synchronization first configuration information, and receives the timing advance of the relevant candidate cell from the serving cell.

[0549] The fourth node identifies the fifth information based on the continuous data transmission related indication information, which is used by the relevant user equipment to perform continuous data transmission across cells or base stations.

[0550] Upon receiving the continuous data transmission related indication information, the fourth node considers the fifth information to be configuration information for performing continuous data transmission across cells or base stations when in a disconnected state. Furthermore, if the fifth information contains at least one cell identifier related information, the indication information also instructs the fourth node to perform continuous data transmission when accessing at least one cell corresponding to the at least one cell identifier.

[0551] In one implementation: the continuous data transmission related indication information can be an explicit indication information; in another implementation: the continuous data transmission related indication information can be an implicit indication information, wherein if the fifth information includes access layer reference configuration related information, it implicitly indicates the provided configuration for continuous data transmission of the user equipment.

[0552] The fourth node identifies at least one cell / tracking area / region under the second, third, or fifth node based on the first / second / third service-related information to provide continuous data transmission information for the user equipment.

[0553] If the fifth information contains the first uplink synchronization configuration information, the fourth node considers the generated uplink synchronization information to be for a candidate cell accepted by the second node, the third node, or the fifth node.

[0554] In one implementation: the uplink synchronization first configuration information is information provided separately for different cells; in another implementation: the uplink synchronization first configuration information is information shared by all candidate cells in the second node, the third node, or the fifth node.

[0555] In one implementation: if the fifth information contains access layer reference configuration related information, the fourth node considers that the first / second access layer configuration related information is generated based on the delta configuration according to the access layer reference configuration related information.

[0556] Step 606a: Optionally, when the fourth node has uplink data transmission, the fourth node initiates a random access procedure. After the random access procedure is completed, the fourth node can perform uplink and downlink data transmission with the second node.

[0557] Step 607: The second node sends a first instruction message to the fourth node. The first instruction message may be downlink control information. The first instruction message triggers the fourth node to send a first uplink transmission to the third node. In one embodiment, the first uplink transmission is a preamble. The first instruction message includes at least one of the following:

[0558] - Cell-related information, used to indicate the cell in which the fourth node needs to send the first uplink transmission.

[0559] In one implementation, cell-related information can be a cell indicator.

[0560] - First uplink transmission index information, used to indicate the index corresponding to the first uplink transmission that needs to be sent by the fourth node. In one embodiment, the first uplink transmission index information may be a random access preamble index.

[0561] - A reference signal index is used by the fourth node to determine the timing of the random access channel. In one embodiment, the reference signal index may be a synchronization signal index (SS / PBCH index).

[0562] - A random access channel mask index, used by the fourth node to determine the timing of the random access channel associated with the reference signal index. In one embodiment, the random access channel mask index may be a PRACH mask index.

[0563] - Random access channel transmission-related information is used by the fourth node to determine the transmission status of the first uplink transmission. In one embodiment, the random access channel transmission-related information may be a Reach access channel retransmission indicator (PRACH).

[0564] Step 607a: The fourth node sends the first uplink transmission to the candidate cell under the third node.

[0565] In one implementation: the first uplink transmission is the preamble.

[0566] In one implementation: the fourth node sends the first uplink transmission to the candidate cell of the third node, which is a step in the early uplink synchronization process.

[0567] Step 607b: The third node sends an eighth message to the second node, the eighth message being used to provide information related to the morning synchronization.

[0568] The eighth piece of information includes at least one of the following:

[0569] - Cell-related identification information, used to indicate the corresponding candidate cell or target cell. In one embodiment, the cell-related identification information may be a target configuration ID.

[0570] - Timing advance information, used to provide the timing advance used by the fourth node when performing uplink synchronization with the candidate cells corresponding to the third node. In one embodiment, the timing advance information may be a timing advance command.

[0571] - Transmission control information related information, used to provide transmission control information state-related information that the fourth node needs to activate when performing uplink synchronization with the candidate cell corresponding to the third node. In one embodiment, the transmission control information related information may be a Transmission Control Information State Identifier (TCI state ID).

[0572] - First uplink transmission index information, used to indicate the index corresponding to the first uplink transmission of the fourth node for non-contention-based random access. In one embodiment, the first uplink transmission index information may be a random access preamble index.

[0573] - A reference signal index is used by the fourth node to determine the timing of the random access channel for non-contention-based random access. In one embodiment, the reference signal index may be a synchronization signal index (SS / PBCH index).

[0574] - A random access channel mask index, used by the fourth node to determine the timing of the random access channel associated with the reference signal index for non-contention-based random access. In one embodiment,

[0575] The random access channel mask index can be a PRACH mask index.

[0576] - Repetition count, used by the fourth node to determine the first uplink transmission repetition count for non-contention-based random access. In one implementation, the repetition count may be a repetitionnumber.

[0577] The eighth piece of information may be included in the second interface message, and the message name may be such as morning synchronization notification message, morning synchronization transmission message, morning synchronization information message, etc.

[0578] In one implementation: the eighth information is contained in a container and sent to the second node.

[0579] Step 607c: The second node sends a first handover command to the fourth node. In one embodiment, the first handover command may be a Layer 1 Layer 2 Triggered Mobility Cell Handover Command (LTM cellswitch command MAC CE).

[0580] The first switching command includes at least one of the following:

[0581] - Cell-related identification information, used to indicate the corresponding candidate cell or target cell. In one embodiment, the cell-related identification information may be a target configuration ID.

[0582] - Timing advance information, used to provide the timing advance used by the fourth node when performing uplink synchronization with the candidate cells corresponding to the third node. In one embodiment, the timing advance information may be a timing advance command.

[0583] - Transmission control information related information, used to provide transmission control information state-related information that the fourth node needs to activate when performing uplink synchronization with the candidate cell corresponding to the third node. In one embodiment, the transmission control information related information may be a Transmission Control Information State Identifier (TCI state ID).

[0584] - First uplink transmission index information, used to indicate the index corresponding to the first uplink transmission of the fourth node for non-contention-based random access. In one embodiment, the first uplink transmission index information may be a random access preamble index.

[0585] - A reference signal index is used by the fourth node to determine the timing of the random access channel for non-contention-based random access. In one embodiment, the reference signal index may be a synchronization signal index (SS / PBCH index).

[0586] - A random access channel mask index, used by the fourth node to determine the timing of the random access channel associated with the reference signal index for non-contention-based random access. In one embodiment,

[0587] The random access channel mask index can be a PRACH mask index.

[0588] - Repetition count, used by the fourth node to determine the first uplink transmission repetition count for non-contention-based random access. In one implementation, the repetition count may be a repetitionnumber.

[0589] After receiving the handover command, the fourth node performs uplink synchronization with the candidate cell corresponding to the third node. After successful uplink synchronization, the fourth node adopts the candidate cell corresponding to the third node as the new serving cell and performs uplink and downlink data transmission with the new serving cell.

[0590] It should be noted that the second node can decide to trigger step 607c based on the channel state information report reported by the fourth node.

[0591] It is worth mentioning that, through the method of steps 607-607c, data transmission can continue in the target cell or candidate cell when the user equipment experiences initial mobility in a non-connected state.

[0592] Step 608: The third node sends a first instruction message to the fourth node. The first instruction message may be downlink control information. The first instruction message triggers the fourth node to send a first uplink transmission to the fifth node. In one embodiment, the first uplink transmission is a preamble. The first instruction message includes at least one of the following:

[0593] - Cell-related information, used to indicate the cell in which the fourth node needs to send the first uplink transmission.

[0594] In one implementation, cell-related information can be a cell indicator.

[0595] - First uplink transmission index information, used to indicate the index corresponding to the first uplink transmission that needs to be sent by the fourth node. In one embodiment, the first uplink transmission index information may be a random access preamble index.

[0596] - A reference signal index is used by the fourth node to determine the timing of the random access channel. In one embodiment, the reference signal index may be a synchronization signal index (SS / PBCH index).

[0597] - A random access channel mask index, used by the fourth node to determine the timing of the random access channel associated with the reference signal index. In one embodiment, the random access channel mask index may be a PRACH mask index.

[0598] - Random access channel transmission-related information is used by the fourth node to determine the transmission status of the first uplink transmission. In one embodiment, the random access channel transmission-related information may be a Reach access channel retransmission indicator (PRACH).

[0599] Step 608a: The fourth node sends the first uplink transmission to the candidate cell under the fifth node.

[0600] In one implementation: the first uplink transmission is the preamble.

[0601] In one implementation: the fourth node sends the first uplink transmission to the candidate cell of the fifth node, which is a step in the early uplink synchronization process.

[0602] Step 608b: The fifth node sends the eighth message to the third node, the eighth message being used to provide information related to the morning synchronization.

[0603] The eighth piece of information includes at least one of the following:

[0604] - Cell-related identification information, used to indicate the corresponding candidate cell or target cell. In one embodiment, the cell-related identification information may be a target configuration ID.

[0605] - Timing advance information, used to provide the timing advance used by the fourth node when performing uplink synchronization with the candidate cell corresponding to the fifth node. In one embodiment, the timing advance information may be a timing advance command.

[0606] - Transmission control information related information, used to provide transmission control information state-related information that needs to be activated when the fourth node performs uplink synchronization with the candidate cell corresponding to the fifth node. In one embodiment, the transmission control information related information may be a Transmission Control Information State Identifier (TCI state ID).

[0607] - First uplink transmission index information, used to indicate the index corresponding to the first uplink transmission of the fourth node for non-contention-based random access. In one embodiment, the first uplink transmission index information may be a random access preamble index.

[0608] - A reference signal index is used by the fourth node to determine the timing of the random access channel for non-contention-based random access. In one embodiment, the reference signal index may be a synchronization signal index (SS / PBCH index).

[0609] - A random access channel mask index, used by the fourth node to determine the timing of the random access channel associated with the reference signal index for non-contention-based random access. In one embodiment,

[0610] The random access channel mask index can be a PRACH mask index.

[0611] - Repetition count, used by the fourth node to determine the first uplink transmission repetition count for non-contention-based random access. In one implementation, the repetition count may be a repetitionnumber.

[0612] The eighth piece of information may be included in the second interface message, and the message name may be such as morning synchronization notification message, morning synchronization transmission message, morning synchronization information message, etc.

[0613] In one implementation: the eighth information is contained in a container and sent to the third node.

[0614] In step 608c, the third node sends a first handover command to the fourth node. In one embodiment, the first handover command may be a Layer 1 / 2 triggered Mobility Cell Handover Command (LTM) CellsWitch Command (MAC) CE.

[0615] The first switching command includes at least one of the following:

[0616] - Cell-related identification information, used to indicate the corresponding candidate cell or target cell. In one embodiment, the cell-related identification information may be a target configuration ID.

[0617] - Timing advance information, used to provide the timing advance used by the fourth node when performing uplink synchronization with the candidate cell corresponding to the fifth node. In one embodiment, the timing advance information may be a timing advance command.

[0618] - Transmission control information related information, used to provide transmission control information state-related information that needs to be activated when the fourth node performs uplink synchronization with the candidate cell corresponding to the fifth node. In one embodiment, the transmission control information related information may be a Transmission Control Information State Identifier (TCI state ID).

[0619] - First uplink transmission index information, used to indicate the index corresponding to the first uplink transmission of the fourth node for non-contention-based random access. In one embodiment, the first uplink transmission index information may be a random access preamble index.

[0620] - A reference signal index is used by the fourth node to determine the timing of the random access channel for non-contention-based random access. In one embodiment, the reference signal index may be a synchronization signal index (SS / PBCH index).

[0621] - A random access channel mask index, used by the fourth node to determine the timing of the random access channel associated with the reference signal index for non-contention-based random access. In one embodiment,

[0622] The random access channel mask index can be a PRACH mask index.

[0623] - Repetition count, used by the fourth node to determine the first uplink transmission repetition count for non-contention-based random access. In one implementation, the repetition count may be a repetitionnumber.

[0624] After receiving the handover command, the fourth node performs uplink synchronization with the candidate cell corresponding to the fifth node. After successful uplink synchronization, the fourth node adopts the candidate cell corresponding to the fifth node as the new serving cell and performs uplink and downlink data transmission with the new serving cell.

[0625] It should be noted that the third node can decide to trigger step 608c based on the channel state information report submitted by the fourth node.

[0626] It is worth mentioning that, through the method in steps 608-608c, data transmission can continue in the candidate cell when the user equipment experiences subsequent mobility in the non-connected state.

[0627] The above methods ensure that user equipment can perform continuous data transmission across cells and / or base stations.

[0628] Figure 5 This is a block diagram of the fifth node according to the present invention.

[0629] refer to Figure 5According to this disclosure, the fourth node may be a user equipment, which may include a transceiver 410 and a processor 420, wherein the transceiver 410 is coupled to the processor 420. Optionally, the network node may also include a memory 430. The transceiver 410, processor 420, and memory 430 are configured to perform the operations of the methods and / or embodiments of the present invention. Although the transceiver 410, processor 420, and memory 430 are shown as separate entities, they may be implemented as a single entity, such as a single chip. The transceiver 410, processor 420, and memory 430 may be electrically connected or coupled to each other. The transceiver 410 may transmit signals to and receive signals from other network nodes, such as other UEs, base stations, or core network equipment (e.g., AMF). The processor 420 may include one or more processing units and may control the UE to perform operations and / or functions according to one of the above embodiments. The memory 430 may store instructions for implementing the operations and / or functions of one of the above embodiments.

[0630] According to one aspect of this disclosure, a method is provided performed by a fourth node in a wireless communication network, the method comprising: receiving fifth information from a second node, the fifth information including continuous data transmission related indication information; and performing continuous data transmission across cells or across base stations based on the fifth information.

[0631] In one possible embodiment, the fifth information further includes at least one of the following: user equipment identification information; at least one third service information for providing information related to the second node and / or the third node providing services to the relevant user equipment; access layer reference configuration information; and at least one access layer configuration third information for providing access layer configuration provided by the second node and / or the third node for continuous data transmission to the relevant user equipment.

[0632] In one possible embodiment, the at least one third service-related information includes at least one of the following: base station identifier-related information; cell identifier-related information; tracking area identifier-related information; area-related information; and service time-related information.

[0633] In one possible embodiment, the service time-related information includes at least one of the following: start time; duration; and end time.

[0634] In one possible embodiment, the at least one access stratum configuration third related information is an incremental configuration based on the access stratum reference configuration related information.

[0635] In one possible embodiment, the method further includes: initiating a random access procedure; and after the random access is completed, not entering a connected state, and performing uplink and / or downlink data transmission.

[0636] In one possible embodiment, the method further includes: receiving a handover command from a second or third node; and continuing continuous data transmission in another cell or node according to the handover command.

[0637] In one possible embodiment, the method further includes sending a relevant indication to a second or third node for performing continuous data transmission before performing continuous data transmission.

[0638] Figure 6 This is a block diagram of network nodes in a network according to this disclosure.

[0639] Network nodes in the network can be used to implement the first node, second node, or third node, etc., in this invention. (See reference) Figure 6 The network node according to this disclosure includes a transceiver 510 and a processor 520, wherein the transceiver 510 is coupled to the processor 520. Optionally, the network node may also include a memory 530. The transceiver 510, processor 520, and memory 530 are configured to perform the operations of the methods and / or embodiments of the present invention. Although the transceiver 510, processor 520, and memory 530 are shown as separate entities, they can be implemented as a single entity, such as a single chip. The transceiver 510, processor 520, and memory 530 may be electrically connected or coupled to each other. The transceiver 510 can transmit signals to and receive signals from other network nodes, such as UEs, other base stations, parts of base stations, or core network equipment (e.g., AMF). The processor 520 may include one or more processing units and can control the network node to perform operations and / or functions according to one of the above embodiments. The memory 530 may store instructions for implementing the operations and / or functions of one of the above embodiments.

[0640] According to one aspect of this disclosure, a method is provided performed by a second node in a wireless communication network, the method comprising: receiving fifth information or sixth information from a first node, the fifth information or sixth information including continuous data transmission related indication information; and sending the fifth information to a fourth node, the fifth information including continuous data transmission related indication information.

[0641] In one possible embodiment, the sixth information further includes at least one of the following: user equipment identification information; at least one third service information for providing information on the services provided by the second node and / or the third node to the relevant user equipment; and access layer reference configuration information.

[0642] In one possible embodiment, the method further includes: receiving first information from a first node; and sending second information to the first node; wherein the first information includes at least one of the following: user equipment identification information; continuous data transmission indication information; at least one first service information for providing information related to the second node providing services to the relevant user equipment; wherein the second information includes at least one of the following: user equipment identification information; access layer reference configuration information; at least one access layer configuration first information for providing access layer configuration provided by the second node for continuous data transmission to the relevant user equipment.

[0643] In one possible embodiment, the method further includes: sending third information to a third node; and receiving fourth information from the third node; wherein the third information includes at least one of the following: user equipment identification information; continuous data transmission indication information; at least one second service-related information for providing information related to the third node providing services to the relevant user equipment; and access layer reference configuration information; wherein the fourth information includes at least one of the following: user equipment identification information; and at least one second access layer configuration-related information for providing access layer configuration provided by the third node for continuous data transmission to the relevant user equipment.

[0644] In one possible embodiment, the method further includes: performing uplink and / or downlink continuous data transmission with a fourth node within at least one cell belonging to the second node, wherein the fourth node does not enter a connected state during the continuous data transmission.

[0645] In one possible embodiment, the method further includes: sending a handover command to a fourth node, the handover command being used by the fourth node to continue performing continuous data transmission in another cell or node.

[0646] In one possible embodiment, the method further includes: preparing the relevant user equipment context with at least one third node before receiving the random access preamble from the fourth node.

[0647] According to another aspect of this disclosure, a method performed by a third node in a wireless communication network is provided, the method comprising: receiving third information from a second node, the third information including continuous data transmission related indication information; and sending fourth information to the second node; wherein the fourth information includes at least one of the following: user equipment identification related information; and at least one access layer configuration second related information for providing the third node with access layer configuration for continuous data transmission of related user equipment.

[0648] In one possible embodiment, the third information further includes at least one of the following: user equipment identification information; at least one second service information for providing information related to the third node providing services to the relevant user equipment; and access layer reference configuration information.

[0649] According to another aspect of this disclosure, a method is provided performed by a first node in a wireless communication network, the method comprising: sending first information to a second node, the first information including continuous data transmission related indication information; and receiving second information from the first node; wherein the second information includes at least one of the following: user equipment identification related information; access layer reference configuration related information; and at least one access layer configuration first related information for providing access layer configuration provided by the second node for continuous data transmission of related user equipment.

[0650] In one possible embodiment, the first information further includes at least one of the following: user equipment identification information; and at least one first service information for providing information related to the second node providing services to the relevant user equipment.

[0651] According to embodiments of this disclosure, a computer-readable storage medium storing instructions may also be provided, wherein when the instructions are executed by at least one processor, they cause the at least one processor to perform any one of the methods described above according to exemplary embodiments of this disclosure. Examples of computer-readable storage media herein include: read-only memory (ROM), random access programmable read-only memory (PROM), electrically erasable programmable read-only memory (EEPROM), random access memory (RAM), dynamic random access memory (DRAM), static random access memory (SRAM), flash memory, non-volatile memory, CD-ROM, CD-R, CD+R, CD-RW, CD+RW, DVD-ROM, DVD-R, DVD+R, DVD-RW, DVD+RW, DVD-RAM, BD-ROM, BD-R, BD-R LTH, BD-RE, Blu-ray or optical disc storage, hard disk drive (HDD), solid-state drive (SSD), card storage (such as multimedia cards, secure digital (SD) cards, or ultra-fast digital (XD) cards), magnetic tape, floppy disk, magneto-optical data storage device, optical data storage device, hard disk, solid-state drive, and any other device configured to store a computer program and any associated data, data files, and data structures in a non-transitory manner and to provide the computer program and any associated data, data files, and data structures to a processor or computer so that the processor or computer can execute the computer program. The instructions or computer program in the aforementioned computer-readable storage medium can run in an environment deployed in computer devices such as clients, hosts, agent devices, servers, etc. Furthermore, in one example, the computer program and any associated data, data files, and data structures are distributed across a networked computer system, such that the computer program and any associated data, data files, and data structures are stored, accessed, and executed in a distributed manner through one or more processors or computers.

[0652] Those skilled in the art will understand that the illustrative embodiments described above are not intended to be limiting. It should be understood that any two or more of the embodiments disclosed herein can be combined in any combination. Furthermore, other embodiments may be utilized and other changes may be made without departing from the spirit and scope of the subject matter presented herein. It will be readily understood that aspects of the invention disclosed herein, as generally described herein and illustrated in the accompanying drawings, can be arranged, substituted, combined, separated, and designed in a variety of different configurations, all of which are contemplated herein.

[0653] Those skilled in the art will understand that the various illustrative logic blocks, modules, circuits, and steps described herein can be implemented in hardware, software, or a combination of both. To clearly illustrate this interchangeability between hardware and software, the various illustrative components, blocks, modules, circuits, and steps are described above in the form of sets of functions. Whether such sets of functions are implemented in hardware or software depends on the specific application and the design constraints imposed on the overall system. Those skilled in the art may implement the described sets of functions in different ways for each specific application, but such design decisions should not be construed as departing from the scope of this application.

[0654] The various illustrative logic blocks, modules, and circuits described in this application may be implemented or performed using a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. The general-purpose processor may be a microprocessor, but in alternatives, the processor may be any conventional processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors cooperating with a DSP core, or any other such configuration.

[0655] The steps of the methods or algorithms described in this application may be embodied directly in hardware, in a software module executed by a processor, or in a combination of both. The software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor so that the processor can read and write information to / from the storage medium. In an alternative, the storage medium may be integrated into the processor. The processor and storage medium may reside in an ASIC. The ASIC may reside in a user terminal. In an alternative, the processor and storage medium may reside as discrete components in the user terminal.

[0656] In one or more exemplary designs, the functionality may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functionality may be stored as one or more instructions or lines of code on or transmitted via a computer-readable medium. Computer-readable media includes both computer storage media and communication media, the latter including any medium that facilitates the transfer of a computer program from one location to another. Storage media may be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0657] The above description is merely an exemplary embodiment of this application and is not intended to limit the scope of protection of this application. The scope of protection of this application is determined by the appended claims.

Claims

1. A method performed by a fourth node in a wireless communication network, the method comprising: The fourth node receives fifth information, which includes configuration information required for the fourth node to access different cells for data transmission. as well as Based on the fifth piece of information, data transmission is performed by accessing different cells; The fourth node is in a disconnected state.

2. The method according to claim 1, wherein the fifth information comprises at least one of the following: Indication information related to continuous data transmission; User equipment identification information; At least one third service-related information, used to provide information on the services provided by the second node and / or the third node to the relevant user equipment; Access layer reference configuration information; At least one access stratum configuration is configured with third relevant information to provide access stratum configuration for continuous data transmission of relevant user equipment by the second node and / or the third node and / or the fifth node. At least one uplink synchronization first configuration information; At least one reference signal first configuration information.

3. The method according to claim 2, wherein the at least one uplink synchronization first configuration information comprises at least one of the following: Frequency information; Information related to the preamble sequence; Random access channel subcarrier spacing; Uplink and downlink configuration information; Timing-related information; Random access configuration index related information; The preamble receives the target power information; Information related to power boost step size; Information related to the maximum number of preamble transmissions; Information related to the random access response window.

4. The method according to claim 2, wherein the at least one reference signal first configuration information comprises at least one of the following: Frequency information; Subcarrier spacing information; Cycle-related information; Location-related information.

5. The method according to claim 1, further comprising: Initiate a random access procedure; as well as After random access is completed, it does not enter the connected state, but performs uplink and / or downlink data transmission.

6. The method according to claim 1, further comprising: Receive downlink control information from the second or third node; as well as, Send a preamble to the target cell of the third or fifth node.

7. The method according to claim 1, further comprising: Receive a switching command from the second, third, or fifth node; as well as According to the handover command, continuous data transmission continues in another cell or node.

8. The method of claim 7, wherein the switching command comprises at least one of the following: Community signage information; Information related to timing lead time; Transmit control information and related information; Preamble index information; Reference signal index; Random access channel mask index; Number of repetitions.

9. A method performed by a second node in a wireless communication network, the method comprising: Receive fifth or sixth information from the first node, wherein the fifth or sixth information includes continuous data transmission related indication information; as well as Send fifth information to the fourth node, the fifth information including configuration information required for the fourth node to access different cells for data transmission; The fourth node is in a disconnected state.

10. The method of claim 9, further comprising: Send the seventh message to the third node; The seventh piece of information includes at least one of the following: User equipment identification information; At least one fourth service-related information, used to provide information related to the services provided by the fifth node to the relevant user equipment; The uplink synchronization second configuration information is used by relevant user equipment to perform the uplink synchronization process with the candidate cells under the fifth node.

11. The method of claim 9, further comprising: Receive the eighth message from the third node; The eighth piece of information includes at least one of the following: cell-related identification information, used to indicate the corresponding candidate cell or target cell; Timing advance information is used to provide the timing advance used by the fourth node when performing uplink synchronization with the candidate cells corresponding to the third node; Transmission control information related information, used to provide the transmission control information status related information that the fourth node needs to activate when performing uplink synchronization with the candidate cell corresponding to the third node; Preamble index information is used to indicate the index corresponding to the preamble used by the fourth node for non-contention random access; A reference signal index is used by the fourth node to determine the timing of the random access channel for non-contention-based random access; A random access channel mask index is used by the fourth node to determine the timing of the random access channel associated with the reference signal index for non-contention-based random access. The number of repetitions is used by the fourth node to determine the number of repetitions for the first uplink transmission used for non-contention-based random access.

12. The method according to claim 9, further comprising: Send a third message to the third node; as well as Receive the fourth message from the third node; The third piece of information includes at least one of the following: User equipment identification information; Indication information related to continuous data transmission; At least one second service-related information is provided to offer information related to the third node providing services to the relevant user equipment. Access layer reference configuration information; The fourth piece of information includes at least one of the following: User equipment identification information; At least one access layer is configured with second relevant information to provide the access layer configuration provided by the third node for continuous data transmission of relevant user equipment; At least one uplink synchronization first configuration information is used by the relevant user equipment to perform the early uplink synchronization process with the candidate cell; At least one reference signal first configuration information is provided to the relevant user equipment for providing the service cell and / or candidate cell reference signal related configuration.

13. A method performed by a third node in a wireless communication network, the method comprising: Receive third information from the second node, the third information including continuous data transmission related indication information; as well as Send the fourth message to the second node; The fourth piece of information includes at least one of the following: User equipment identification information; At least one access layer is configured with second relevant information to provide the access layer configuration provided by the third node for continuous data transmission of relevant user equipment; At least one uplink synchronization first configuration information is used by the relevant user equipment to perform the early uplink synchronization process with the candidate cell; At least one reference signal first configuration information is provided to the relevant user equipment for providing the service cell and / or candidate cell reference signal related configuration.

14. A method performed by a first node in a wireless communication network, the method comprising: Send first information to the second node, the first information including continuous data transmission related indication information; as well as Receive the second information from the first node; The second piece of information includes at least one of the following: User equipment identification information; Access layer reference configuration information; At least one access layer configuration is configured with first relevant information to provide the access layer configuration provided by the second node for continuous data transmission of relevant user equipment.

15. A node device in a wireless communication network, the device comprising: A transceiver is configured to send and receive signals; A processor, coupled to the transceiver and configured to perform the method as described in any one of claims 1 to 14.

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