Systems and methods for providing configuration information

Abstract

The present disclosure relates to a system and method for providing information. In one embodiment, the method includes configuring, by a first wireless communication node, a list indicating a plurality of default configurations. The plurality of default configurations are associated with respective indices. The method includes providing, by the first wireless communication node, the first one of the indices to a wireless communication device.

Description

Technical Field

[0001] The present disclosure generally relates to wireless communication and, more particularly, to systems and methods for providing configuration information. Background Art

[0002] In a non-terrestrial network (NTN), a user equipment (UE) directly interacts with a satellite to exchange uplink and downlink signaling and data. In some embodiments, NTN-specific configurations and terrestrial network (TN) configurations that can be reused in the NTN are provided to the UE. Summary of the Invention

[0003] Example embodiments disclosed herein are directed to solving problems related to one or more challenges present in the prior art and to providing additional features that will become apparent upon reference to the following detailed description when taken in conjunction with the accompanying drawings. According to various embodiments, example systems, methods, devices, and computer program products are disclosed herein. However, it should be understood that these embodiments are presented by way of example and not limitation, and it will be apparent to those of ordinary skill in the art who have read this disclosure that various modifications can be made to the disclosed embodiments while remaining within the scope of this disclosure.

[0004] In one embodiment, a method performed by a wireless communication node includes configuring, by a first wireless communication node, a list indicating a plurality of default configurations. The plurality of default configurations are associated with respective indexes. The method includes providing, by the first wireless communication node, a first index in the indexes to a wireless communication device.

[0005] In some embodiments, the method includes: receiving, by the first wireless communication node, from the wireless communication device a first message indicating that the wireless communication device has successfully obtained any one of the plurality of default configurations associated with a second index in the indexes or indicating whether the wireless communication device supports the default configuration associated with the second index; and in response to receiving the first message, sending, by the first wireless communication node, a second message indicating the first index to the wireless communication device. Any number of default configurations associated with the respective indexes that have been successfully obtained or supported by the communication device can be indicated from the communication device to the communication node in the first message.

[0006] In another embodiment, a method performed by a wireless communication device includes receiving, by the wireless communication device, a first index in a plurality of indexes from a wireless communication node. Each of the plurality of indexes is associated with a respective one of the plurality of default configurations configured in a list. The method includes configuring an operation of the wireless communication device based on the first index.

[0007] In yet another embodiment, a device includes receiving, by a wireless communication device, a configuration related to a first wireless communication node from the first wireless communication node, and performing operations of the wireless communication device based on the received configuration.

[0008] In some embodiments, the wireless communication device receives the configuration in the RRC connected state, and the method further includes performing, by the wireless communication device, a handover to a cell based on the configuration and sending, by the wireless communication device, a message indicating that the handover has been performed to the first wireless communication node.

[0009] In yet another embodiment, a device includes: determining, by a first wireless communication node, a configuration related to the first wireless communication node, and sending, by the first wireless communication node, the configuration to a wireless communication device.

[0010] The above and other aspects and their implementations will be described in more detail in the drawings, the description, and the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Various example embodiments of the present solution will be described in detail below with reference to the following figures or drawings. The drawings are provided for illustrative purposes only and depict only example embodiments of the present solution to facilitate the reader's understanding of the present solution. Therefore, the drawings should not be considered as limiting the breadth, scope, or applicability of the present solution. It should be noted that these drawings are not necessarily drawn to scale for clarity and ease of illustration.

[0012] Figure 1 An example cellular communication network according to an embodiment of the present disclosure is shown, in which the techniques and other aspects disclosed herein can be implemented.

[0013] Figure 2 A block diagram of an example base station and user equipment device according to some embodiments of the present disclosure is shown.

[0014] Figure 3 A sequence diagram of index-based signaling according to some embodiments of the present disclosure is shown.

[0015] Figure 4 A sequence diagram of index-based signaling during handover according to some embodiments of the present disclosure is shown.

[0016] Figure 5 A block diagram of an environment for assisting UE mobility according to some embodiments of the present disclosure is shown.

[0017] Figure 6 A block diagram of an environment for assisting UE mobility according to some embodiments of the present disclosure is shown.

[0018] Figure 7A block diagram of an environment for assisting UE mobility according to some embodiments of the present disclosure is shown.

[0019] Figure 8 A flowchart showing an example process for providing configuration information according to some embodiments of the present disclosure.

[0020] Figure 9 A flowchart showing an example process for providing configuration information according to some embodiments of the present disclosure.

[0021] Figure 10 A flowchart showing an example process for providing configuration information according to some embodiments of the present disclosure.

[0022] Figure 11 A flowchart showing an example process for providing configuration information according to some embodiments of the present disclosure. Detailed Description of the Invention

[0023] Various example embodiments of the present solution are described below with reference to the accompanying drawings so that those of ordinary skill in the art can make and use the present solution. It will be apparent to those of ordinary skill in the art that various changes or modifications can be made to the examples described herein without departing from the scope of the present solution after reading this disclosure. Therefore, the present solution is not limited to the example embodiments and applications described and illustrated herein. Additionally, the specific order or hierarchy of steps in the methods disclosed herein is merely an example method. Based on design preferences, the specific order or hierarchy of steps of the disclosed method or process can be rearranged while remaining within the scope of the present solution. Therefore, those of ordinary skill in the art will understand that the methods and techniques disclosed herein present various steps or actions in an example order, and the present solution is not limited to the specific order or hierarchy presented unless otherwise expressly stated.

[0024] A. Network Environment and Computing Environment

[0025] Figure 1 An example wireless communication network and / or system 100 according to an embodiment of the present disclosure is shown, in which the technologies disclosed herein can be implemented. In the following discussion, the wireless communication network 100 can be any wireless network, such as a cellular network or a narrowband Internet of Things (NB-IoT) network, and is referred to herein as "network 100". Such an example network 100 includes base stations 102 (hereinafter referred to as "BS 102") and user equipment devices 104 (hereinafter referred to as "UE 104") that can communicate with each other via communication links 110 (e.g., wireless communication channels), as well as a group of cells 126, 130, 132, 134, 136, 138, and 140 that cover a geographical area 101. In Figure 1In this case, BS 102 and UE 104 are included within the respective geographical boundaries of cell 126. Each of the other cells 130, 132, 134, 136, 138, and 140 may include at least one base station operating with its allocated bandwidth to provide sufficient radio coverage to its target users.

[0026] For example, BS 102 may operate with the allocated channel transmission bandwidth to provide sufficient coverage to UE 104. BS 102 and UE 104 may communicate via a downlink radio frame 118 and an uplink radio frame 124, respectively. Each radio frame 118 / 124 may be further divided into radio sub-frames 120 / 127 that may include data symbols 122 / 128. In the present disclosure, BS 102 and UE 104 are generally described as non-limiting examples of "communication nodes" that may practice the methods disclosed herein. According to various embodiments of the present solution, such communication nodes may be capable of wireless and / or wired communication.

[0027] Figure 2 A block diagram of an example wireless communication system 200 for transmitting and receiving wireless communication signals (e.g., OFDM / OFDMA signals) according to some embodiments of the present solution is shown. System 200 may include components and elements configured to support known or conventional operating characteristics, which need not be described in detail herein. In one illustrative embodiment, system 200 may be used to transmit (e.g., send and receive) data symbols in a wireless communication environment (such as the Figure 1 wireless communication environment 100 as described above).

[0028] System 200 generally includes a base station 202 (hereinafter referred to as "BS 202") and a user equipment device 204 (hereinafter referred to as "UE 204"). BS 202 includes a BS (base station) transceiver module 210, a BS antenna 212, a BS processor module 214, a BS memory module 216, and a network communication module 218, each module being coupled and interconnected to each other via a data communication bus 220 as necessary. UE 204 includes a UE (user equipment) transceiver module 230, a UE antenna 232, a UE memory module 234, and a UE processor module 236, each module being coupled and interconnected to each other via a data communication bus 240 as necessary. BS 202 communicates with UE 204 via a communication channel 250, which may be any wireless channel or other medium suitable for data transmission as described herein.

[0029] As will be understood by those of ordinary skill in the art, system 200 may also include in addition to Figure 2Any number of modules other than the modules shown. Those skilled in the art will understand that the various illustrative blocks, modules, circuits, processing logics described in connection with the embodiments disclosed herein can be implemented in hardware, computer-readable software, firmware, or any practical combination thereof. To clearly illustrate this interchangeability and compatibility of hardware, firmware, and software, the various illustrative components, blocks, modules, circuits, and steps are generally described in terms of their functionality. Whether such functionality is implemented in hardware, firmware, or software depends on the particular application and the design constraints imposed on the overall system. Those skilled in the art familiar with the concepts described herein can implement such functionality in a suitable manner for each particular application, but such implementation decisions should not be construed as limiting the scope of the present disclosure.

[0030] According to some embodiments, the UE transceiver 230 may be referred to herein as an "uplink" transceiver 230, which includes a radio frequency (RF) transmitter and an RF receiver, each including circuitry coupled to an antenna 232. A duplex switch (not shown) may alternatively couple the uplink transmitter or receiver to the uplink antenna in a time-division duplex manner. Similarly, according to some embodiments, the BS transceiver 210 may be referred to herein as a "downlink" transceiver 210, which includes an RF transmitter and an RF receiver, each including circuitry coupled to an antenna 212. The downlink duplex switch may alternatively couple the downlink transmitter or receiver to the downlink antenna 212 in a time-division duplex manner. The operations of the two transceiver modules 210 and 230 may be coordinated in time such that while the downlink transmitter is coupled to the downlink antenna 212, the uplink receiver circuitry is coupled to the uplink antenna 232 to receive transmissions over the wireless transmission link 250. In some embodiments, there is a tight time synchronization with a minimum guard time between changes in the duplex direction.

[0031] The UE transceiver 230 and the base station transceiver 210 are configured to communicate via a wireless data communication link 250 and cooperate with a suitably configured RF antenna arrangement 212 / 232, which may support a particular wireless communication protocol and modulation scheme. In some illustrative embodiments, the UE transceiver 210 and the base station transceiver 210 are configured to support industry standards such as Long Term Evolution (LTE) and emerging 5G standards and the like. However, it should be understood that the present disclosure need not be limited in application to a particular standard and associated protocol. Instead, the UE transceiver 230 and the base station transceiver 210 may be configured to support alternative or additional wireless data communication protocols, including future standards or variations thereof.

[0032] According to various embodiments, the BS 202 can be, for example, an evolved Node B (eNB), serving eNB, target eNB, gNB, ng-eNB, femtocell, or picocell. In some embodiments, the UE 204 can be embodied in various types of user devices, such as mobile phones, smartphones, personal digital assistants (PDAs), tablet computers, laptop computers, wearable computing devices, and the like. The processor modules 214 and 236 can be implemented or realized using a general-purpose processor, content addressable memory, digital signal processor, application specific integrated circuit, field programmable gate array, any suitable programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. In this way, the processor can be implemented as a microprocessor, controller, microcontroller, or state machine or the like. The processor can also be implemented as a combination of computing devices, for example, a combination of a digital signal processor and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a digital signal processor core, or any other such configuration.

[0033] In addition, the steps of the methods or algorithms described in connection with the embodiments disclosed herein can be directly embodied in hardware, firmware, software modules executed respectively by the processor modules 214 and 236, or any actual combination thereof. The memory modules 216 and 234 can be implemented as RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art. In this regard, the memory modules 216 and 234 can be respectively coupled to the processor modules 210 and 230 such that the processor modules 210 and 230 can respectively read information from and write information to the memory modules 216 and 234. The memory modules 216 and 234 can also be integrated into their respective processor modules 210 and 230. In some embodiments, the memory modules 216 and 234 can each include a cache memory for storing temporary variables or other intermediate information during the execution of instructions respectively executed by the processor modules 210 and 230. The memory modules 216 and 234 can also each include non-volatile memory for storing the instructions to be respectively executed by the processor modules 210 and 230.

[0034] The network communication module 218 generally represents the hardware, software, firmware, processing logic, and / or other components of the base station 202, which enables two-way communication between the base station transceiver 210 and other network components and communication nodes configured to communicate with the base station 202. For example, the network communication module 218 can be configured to support Internet or WiMAX traffic. In a typical deployment, without limitation, the network communication module 218 provides an 802.3 Ethernet interface, enabling the base station transceiver 210 to communicate with a conventional Ethernet-based computer network. In this way, the network communication module 218 can include a physical interface for connecting to a computer network (e.g., a mobile switching center (MSC)). As used herein with respect to a specified operation or function, the terms "configured to", "configured for", and their variations refer to a device, component, circuit, structure, machine, signal, etc. that is physically constructed, programmed, formatted, and / or arranged to perform the specified operation or function.

[0035] B. Examples of Providing Configuration Information

[0036] In a non-terrestrial network (NTN), a UE (e.g., UE 104, UE 204, wireless communication device, mobile device, etc.) directly interacts with a satellite to exchange uplink and downlink signaling and data. A BS (e.g., BS 102, BS 202, wireless communication node, gNB, gNodeB, network, etc.) configured to communicate the UE in the NTN network can be a satellite, a terrestrial BS, or a combination thereof. In a transparent satellite-based NextGen RAN (NG-RAN) architecture, the satellite is coupled (e.g., via an NTN gateway) to a terrestrial BS. In one embodiment of a regenerative satellite-based NG-RAN, the satellite is a non-terrestrial BS and is directly coupled to a 5G core network (CN). In one embodiment of a regenerative satellite-based NG-RAN, the satellite is one of multiple gNB distributed units (gNB-DUs) coupled to a terrestrial gNB central unit (gNB-CU). Some NTN-specific configurations, as well as some terrestrial network (TN) configurations that can be reused in the NTN, can be provided to the UE.

[0037] There are technical problems. That is, compared with embodiments that expect (e.g., less than a predetermined threshold) the number of transmissions and / or bits, embodiments not envisioned by the present disclosure configure the UE using an undesired (e.g., greater than a predetermined threshold) number of transmissions and / or bits, resulting in additional latency, reduced throughput, and / or additional power consumption.

[0038] Some embodiments of systems and methods for providing configuration information from an NTN- or TN-based radio access network (RAN) node to a UE in RRC_IDLE, RRC_INACTIVE, or RRC_CONNECTED mode are described herein. In some embodiments, the UE receives an index from the network and applies the corresponding default configuration identified by the received index. In some embodiments, the UE receives a configuration from the network and determines: (a) one or more cells and / or one or more frequencies on which to perform measurements; (b) a target cell to move to based on the configuration; and / or (c) cells to include in a measurement report. Some of the embodiments include technical solutions to technical problems. That is, some of the embodiments use a desired number of transmissions to configure the UE and / or result in lower latency, increased throughput, and / or lower power consumption compared to embodiments not contemplated by the present disclosure.

[0039] In some embodiments, the NW (network, e.g., satellite or terrestrial BS) configures a list, mapping, or other data structure indicating default configurations. The data structure maps the default configurations to corresponding indices or otherwise associates them with the corresponding indices. The NW can send the first of the indices directly, via the source BS, or otherwise to the UE. The UE can apply the corresponding default configuration based on the received first index. Before sending the first index to the UE, the NW can predefine and / or send the list to the UE.

[0040] In some embodiments, a default configuration identifier (ID) and a detailed configuration can be provided, and the detailed configuration can be used to provide an incremental configuration based on the default configuration index. In some embodiments, the measurement information provided in the system information can be reused by the network and / or the UE, e.g., by making the measurement object refer to the inter-frequency measurement configuration in the system information block (SIB). In some embodiments, a default configuration is preconfigured or specified in a specification. In some embodiments, if there is no dedicated configuration, a (e.g., preconfigured) default configuration is used.

[0041] A list of default configurations can be provided from the NW to the UE via system information or dedicated radio resource control (RRC) signaling. For example, index 1 identifies the first default configuration in the list of default configurations, index 2 identifies the second default configuration in the list of default configurations, and so on. The list of default configurations can also be defined in a specification.

[0042] Default configurations (e.g., lists) can include one or more default Radio Link Control (RLC) configurations, one or more default Medium Access Control (MAC) configurations, one or more default Physical Layer (PHY) configurations, one or more default Service Data Application Protocol (SDAP) configurations, one or more default Packet Data Convergence Protocol (PDCP) configurations, one or more default measurement configurations, one or more default Data Radio Bearer (DRB) configurations, one or more default Signaling Radio Bearer (SRB) configurations, one or more default cell group configurations, one or more default logical channel configurations, one or more default configurations of reference signals, and / or one or more default configurations of physical channels. The list of default configurations can include a list of default Random Access Channel (RACH) configurations. In some embodiments, each default RACH configuration in the list contains multiple per-beam RACH configurations. The per-beam RACH configuration can be referred to as the RACH configuration associated with each of the multiple beams (e.g., Quasi-Co-Location (QCL) state, Transmission Configuration Indicator (TCI) state, spatial relation state, etc.). The number of per-beam RACH configurations in each default configuration is greater than or equal to the number of beams.

[0043] The NW can determine whether the default configuration is applicable to the UE. In some embodiments, the UE reports to the NW, via dedicated RRC signaling, the index of the default configuration in the list that has been successfully acquired or supported by the UE. One or more of such default configurations can be successfully acquired or supported, and the UE can report one or more indices corresponding to the respective one or more configurations. The dedicated RRC signaling can include the RRCSetupComplete message, the RRCResumeComplete message, the RRCReestablishmentComplete message, or the UECapabilityInformation message. The NW determines the appropriate default configuration considering the UE report, network policy, traffic load, and / or radio signal quality, and provides the index to the UE via dedicated RRC signaling (e.g., the RRCReconfiguration message).

[0044] The NW can send, configure, or otherwise provide the default configuration to the UE in several ways. In some embodiments, a selection structure is used to distinguish the use of default configurations (e.g., indices) and normal (e.g., detailed) configurations. The NW can only select to provide one option: the detailed configuration or the first index of the configuration. In some embodiments, only one option can be selected and configured for the UE via dedicated RRC signaling (e.g., the RRCReconfiguration message). In some embodiments, the detailed configuration is the configuration that the NW is configuring the UE to be in without using indices and / or lists.

[0045] In some embodiments, the NW determines and provides to the UE a combination of a default configuration index and an incremental configuration. In some embodiments, the NW determines the incremental configuration. In some embodiments, the incremental configuration includes the difference between a detailed configuration and the default configuration associated with the default configuration ID. For example, the default configuration is MAC1, RLC2, and PHY3, and the detailed configuration (e.g., the configuration that the NW is configuring the UE to) is MAC1, RLC2, and PHY4. As such, PHY4 is the incremental configuration, which replaces PHY3 in the default configuration. In some embodiments, the NW sends, configures, or otherwise provides the default configuration ID and the incremental configuration to the UE. In some embodiments, the incremental configuration of the UE is provided, for example by the NW, via an information element (IE) of the detailed configuration.

[0046] If the default configuration ID and the detailed configuration are included in the RRC signaling, in some embodiments, the UE applies the default configuration and ignores the detailed configuration. In some embodiments, the UE first applies the default configuration and then applies the detailed configuration IE, causing the incremental configuration to be enabled.

[0047] Figure 3 Sequence diagram 300 of index-based signaling according to some embodiments of the present disclosure is shown. As Figure 3 shown, a list of default configurations is broadcast to the UE 304 via system information (e.g., in system information 306). The default configuration list includes default values of many (e.g., RLC, MAC, PHY, SDAP, PDCP, DRB, SRB, cell group, logical channel, physical channel, reference signal) configurations. A random access 308 is established between the NW 302 and the UE 304, such as resource selection, preamble transmission, response reception, and contention resolution.

[0048] Next, the RRC connection is established, restored, or otherwise configured. For example, the UE 304 sends an RRCSetupRequest message 310 to the NW 302, the NW 302 sends an RRCSetup message 312 to the UE 304, and the UE 304 sends an RRCSetupComplete message 314 to the NW 302.

[0049] After a successful random access 308 is granted and an RRC connection is established, the NW 302 determines the default configuration. The NW 302 may consider network policies, traffic loads, and some other information when determining the appropriate default configuration. The NW 302 sends an RRCReconfiguration message 316 to the UE 304. In some embodiments, an index of the determined configuration will then be provided via the RRCReconfiguration message 316. In some embodiments, some parts of the determined configuration are different from any of the default configurations in the list provided to the UE 304. In some embodiments, because some parts of the determined configuration are different, the NW 302 provides an incremental configuration and an index of the default configuration to the UE 304 via the RRCReconfiguration message 316.

[0050] In some embodiments, the default configuration may be defined or predefined (e.g., in the specification), and the UE 304 and the NW 302 include or may access the default configuration. In such embodiments, the NW 302 may not send a list of the default configuration in the system information 306 to the UE 304. In some embodiments, after a successful random access and establishment of an RRC connection, no index or detailed configuration is sent to the UE 304 via the RRCReconfiguration message 316. The UE 304 applies the default configuration defined in the specification.

[0051] In some embodiments, a list of measurement configurations for neighboring cells and / or frequencies is broadcast to the UE 304 via the system information. In some embodiments, after a successful random access 308 and establishment of an RRC connection, the NW 302 determines the measurement configuration. The NW 302 may consider network policies, traffic loads, and some other information when determining the measurement configuration. Measurement objects may be specified in the measurement configuration. The UE 304 may measure the measurement objects based on the configuration. In some embodiments, the measurement objects are linked to neighboring cells or frequencies provided in the system information and are sent, configured, or otherwise provided to the UE 304 via the RRCReconfiguration message 316.

[0052] Figure 4 A sequence diagram 400 of index-based signaling during handover according to some embodiments of the present disclosure is shown. As Figure 4 shown, a list of default configurations is broadcast to the UE 404 (e.g., UE 104, UE 204, and / or UE 304) via the system information (e.g., system information 306 about Figure 3 ). The UE 404 goes through an RRC setup or RRC resume process (e.g., about Figure 3Upon the transmission of the RRCSetupRequest message 310 and the reception of the RRCSetup message 312, it enters the RRC_CONNECTED state 406. After successful random access, the UE 404 reports the index of the default configuration supported by the UE 404 (e.g., via the RRCSetupComplete message, the RRCResumeComplete message, the RRCReestablishmentComplete message, or the UECapabilityInformation message 408). In some embodiments, the UE 404 reports one or more indexes corresponding to the respective one or more default configurations supported by the UE 404.

[0053] The source gNB 402A (e.g., the first radio communication node, BS 102, BS 202, and / or NW 302) receives a measurement report 410 from the UE 404. The measurement report 410 includes the measurement results of frequencies or measurement objects or neighboring cells. The measurement report 410 will be triggered periodically or conditionally. The triggering condition may be that the signal quality of the serving cell (e.g., associated with the source gNB 402A) is less than a threshold, e.g., the serving cell does not provide qualified radio services to the UE 404. The triggering condition may occur when the UE 404 moves to the edge of the serving cell. The permitted Closed Access Group (CAG) list may be associated with the condition for triggering the measurement report.

[0054] In some embodiments, after receiving the measurement report, the source gNB 402A determines to hand over the UE 404 to a target cell associated with the target gNB 402B (e.g., the second radio communication node, the second instance of BS 202, NW 302, or BS 102). During the handover preparation phase, the source gNB 402A provides one or more default configurations supported by the UE 404 and the indexes of those configurations to the target gNB 402B via the HandoverPreparationInformation message 412. In some embodiments, the target gNB 402B determines the configuration based on the default configuration supported by the UE 404, network policies, traffic load, and / or some other information. The gNB 402B provides the index of the determined configuration to the source gNB 402A via the HandoverCommand message 414. Then the source gNB 402A forwards the index to the UE 404 via the RRCReconfiguration message 416.

[0055] In some embodiments, the target gNB 402B provides system information from the target cell via a HandoverCommand message 414 (e.g., in response to the target gNB 402B receiving a HandoverPreparationInformation message 412). In some embodiments, the system information includes a list of default configurations for the source gNB 402A. The source gNB 402A forwards the system information of the target cell to the UE 404 via dedicated RRC signaling (e.g., an RRCReconfiguration message 416). The index of the determined configuration and the system information including the list of default configurations of the target cell can be provided from the target gNB 402B to the source gNB 402A via the same message or different messages in the Xn interface (e.g., the interface between two gNBs) or the NG interface (i.e., the interface between the gNB and the core network, where the target gNB sends the information to the core network, and then the core network forwards this information to the source gNB via the NG interface). The index of the determined configuration and the system information including the list of default configurations of the target cell can be provided to the UE from the source gNB 402A via the same RRC message or different RRC messages.

[0056] In some embodiments, a UE (e.g., UE 104 or UE 204, a wireless communication device, a mobile device, etc.) receives a configuration related to a wireless communication node (e.g., BS 102, BS 202, a satellite, a non-terrestrial communication node, a terrestrial communication node, a gNB, a gNodeB, a network, etc.). The UE may perform one or more operations based on the received configuration. The operations may include: determining one or more cells and / or one or more frequencies to perform measurements on, a target cell to move to based on the configuration, and / or cells to be included in a measurement report. The configuration may include at least one of the following: ephemeris information of the current satellite and adjacent satellites, physical cell identifiers (PCIs) of cells of the current satellite and adjacent satellites, the type of the current cell, one or more adjacent cells, or one or more cells on related frequencies. For each cell, the cell type may include whether the cell is a satellite cell, and / or the orbit type of the satellite cell, such as low Earth orbit (LEO), medium Earth orbit (MEO), and geostationary orbit (GEO).

[0057] The configuration may include at least one of an uplink (UL) power requirement, a (DL) power requirement, and a band number. At least one of the UL power requirement, the DL power requirement, and the band number may belong to or be associated with the current cell (e.g., the first radio node), one or more neighboring cells (e.g., the second radio node), or one or more cells on a related frequency. The UL power requirement may include at least one of a target power received by the UL, a required power level, or a required minimum UL power. The DL power requirement may include a DL target transmission power (which may be used to calculate path loss). The band numbers assigned to various satellite types are included in the specification, and different band numbers will be used for different satellite types. The UE may determine the satellite type based on the received band number.

[0058] The configuration may include an indicator to indicate whether autonomous search should be applied, one or more non-public network (NPN) IDs (which are used to identify NPNs), a closed access group (CAG) ID (which is used to identify CAGs), and / or a public land mobile network (PLMN) ID to restrict the reporting of event triggers and / or measurement results. In some embodiments, cells included in an allowed NPN, CAG, or PLMN list are considered to be included in the measurement report. The allowed NPN, CAG, or PLMN list may be an event that triggers a measurement report. In some embodiments, a measurement report will be triggered once the UE moves into or out of a cell associated with the allowed list. The configuration may be provided to the UE from a radio communication node via dedicated RRC signaling or system information.

[0059] Figure 5 A block diagram of an environment 500 for assisting UE mobility in accordance with some embodiments of the present disclosure is shown. Environment 500 includes a current satellite 502A (e.g., BS 102, BS 202, NW 302, source gNB 402A), a neighboring satellite 502B (e.g., BS102, BS 202, target gNB 402B), and a UE 504 (e.g., UE 104, UE 204, UE 304, UE 404). The current satellite 502A includes cells 506 and 508, and the neighboring satellite 502B includes neighboring cells 510 and 512. The UE 504 receives the configuration (e.g., the ephemeris information of the current satellite 502A and the neighboring satellite 502B and the PCI of the cells) via system information. The UE 504 receives the configuration in an RRC inactive state, an RRC idle state, or an RRC connected state. As Figure 5As shown, the UE 504 determines the positions of the current satellite 502A and the neighboring satellite 502B, as well as the PCI of the cells covered by the current satellite and the neighboring satellite. In some embodiments, the UE 504 performs measurements on the neighboring cells 510 and 512. In some embodiments, if a configuration is received in the RRC inactive state or the RRC idle state, the UE 504 performs cell selection and / or reselection on one of the neighboring cells 510 or 512. In some embodiments, if a configuration is received in the RRC connected state, the UE 504 (a) sends a measurement report to the current satellite 502A, or (b) performs a handover to one of the neighboring cells 510 or 512 and sends a measurement report indicating that the handover has been performed to the current satellite 502A.

[0060] Figure 6 FIG. shows a block diagram of an environment 600 for assisting UE mobility according to some embodiments of the present disclosure. The environment 600 includes a GEO satellite 602A (e.g., the current satellite 502A), a LEO satellite 602B (e.g., the neighboring satellite 502B), and a UE 604 (e.g., the UE 504). The GEO satellite 602A includes a cell 606, and the LEO satellite 602B includes a neighboring cell 608. In some embodiments, the UE 604 receives the satellite types of the GEO satellite 602A and the LEO satellite 602B via system information. As Figure 6 shown, the UE 604 with a lower transmission power cannot access the cell 606 served by the GEO satellite 602A at a high altitude. In some embodiments, the UE 604 performs measurements on the neighboring cell 608 and / or performs cell reselection on the neighboring cell 608 (if in the RRC idle state or the RRC inactive state) or performs a handover to the neighboring cell 608 (if in the RRC active state).

[0061] Figure 7 FIG. shows a block diagram of an environment 700 for assisting UE mobility according to some embodiments of the present disclosure. The environment 700 includes a UE 704 (e.g., the UE 504 or the UE 604), a CAG 706, a CG 708, and a CAG 710. The CAG 706 includes cells 712, 714, and 716. The CAG 708 includes cells 718, 720, and 722. The CAG 710 includes cells 724, 726, and 728. As Figure 7As shown, UE 704 is camped on cell 716. The UE 704 receives a list of permitted CAG IDs from the camped cell 716 via system information and determines that the UE is permitted to access CAG 706 and CAG 708. In some embodiments, the UE selectively performs measurements (e.g., on cells 712, 714, 718, 720, and 722) based on the permitted list. In some embodiments, the UE 704 includes the measurement results of those cells (e.g., cells 712, 714, 718, 720, and 722) in a measurement report and transmits the measurement report.

[0062] Figure 8 FIG. is a flow chart showing an example process 800 for providing configuration information in accordance with some embodiments of the present disclosure. In some embodiments, process 800 may be performed by a wireless communication node (e.g., BS 102, BS 202, NW 302, source gNB 402A, or target gNB 402B, and others). Depending on the embodiment, additional, fewer, or different operations may be performed in process 800. The wireless communication node configures a list (802) indicating a plurality of default configurations. The plurality of default configurations are associated with respective indices. The wireless communication node provides a first index in the indices to a wireless communication device (e.g., UE 104, UE 204, UE 304, or UE 404, and others).

[0063] In some embodiments, the first index is associated with one of the plurality of default configurations indicated in the list. In some embodiments, prior to sending the first index to the wireless communication device, the list is predefined to the wireless communication device or sent to the wireless communication device.

[0064] In some embodiments, the list is sent to the wireless communication device via a dedicated radio resource control (RRC) message or system information.

[0065] In some embodiments, the plurality of default configurations include at least one of the following: one or more default radio link control (RLC) configurations; one or more default media access control (MAC) configurations; one or more default physical layer (PHY) configurations; one or more default service data adaptation protocol (SDAP) configurations; one or more default packet data convergence protocol (PDCP) configurations; one or more default measurement configurations; one or more default data radio bearer (DRB) configurations; one or more default signaling radio bearer (SRB) configurations; one or more default cell group configurations; one or more default logical channel configurations; one or more default configurations of physical channels; one or more default configurations of reference signals; or one or more default random access channel (RACH) configurations. In some embodiments, each of the one or more default RACH configurations includes a plurality of per-beam RACH configurations, where each of the plurality of per-beam RACH configurations is associated with one of the plurality of beams. In some embodiments, the number of per-beam RACH configurations is greater than or equal to the number of beams.

[0066] In some embodiments, the wireless communication node is a first wireless communication node. In some embodiments, the first wireless communication node receives a first message from the wireless communication device, the first message indicating that the wireless communication device has successfully obtained any one of the plurality of default configurations associated with a second index in the index, or indicating whether the wireless communication device supports the default configuration associated with the second index, and in response to receiving the first message, sends a second message to the wireless communication device indicating the first index. Any number of default configurations associated with the corresponding index that have been successfully obtained or supported by the communication device can be indicated from the communication device to the communication node in the first message.

[0067] In some embodiments, the first message includes at least one of the following: RRCSetupComplete message, RRCResumeComplete message, RRCResetablishmentComplete message, or UECapabilityInformation message. In some embodiments, the second message includes an RRCReconfiguration message. In some embodiments, the wireless communication node sends a third message to the wireless communication device, the third message indicating a first index associated with one of the plurality of default configurations. In some embodiments, the third message includes an RRCReconfiguration message. In some embodiments, the first wireless communication node determines a detailed configuration and sends a fourth message to the wireless communication device, the fourth message indicating the usage difference between the detailed configuration and one of the plurality of default configurations associated with the first index.

[0068] In some embodiments, a first wireless communication node transmits a fifth message to a wireless communication device indicating a first index and an incremental configuration, the incremental configuration including a difference between a detailed configuration and one of a plurality of default configurations associated with the first index. In some embodiments, the fifth message includes an RRCReconfiguration message. In some embodiments, the first wireless communication node receives a sixth message from the wireless communication device indicating whether one of a plurality of default configurations associated with a second index in the index is supported by the wireless communication device; transmits a seventh message indicating the default configuration associated with the second index to a second wireless communication node (e.g., BS 102, BS 202, NW 302, source gNB 402A or target gNB 402B, etc.) in response to receiving the sixth message; receives an eighth message indicating the first index from the second wireless communication node; and transmits a ninth message indicating the first index to the wireless communication device. Any number of default configurations associated with a corresponding index that have been successfully acquired or supported by the communication device can be indicated from the communication device to the communication node in the first message. In some embodiments, the sixth message includes a UECapabilityInformation message, the seventh message includes a HandoverPreparationInformation message, the eighth message includes a Handover Command message, and the ninth message includes an RRCReconfiguration message.

[0069] In some embodiments, in response to receiving an eleventh message indicating a handover, the first wireless communication node transmits a list to a second wireless communication node to cause the second wireless communication node to forward the list to the wireless communication device, and in response to receiving the eleventh message, transmits a first index to the second wireless communication node to cause the second wireless communication node to forward the first index to the wireless communication device via a twelfth message. In some embodiments, the eleventh message includes a HandoverPreparationInformation message and the twelfth message includes an RRCReconfiguration message.

[0070] In some embodiments, the first wireless communication node transmits a thirteenth message to the wireless communication device indicating one or more measurement objects, the one or more measurement objects being linked to one or more neighboring cells or frequencies provided in system information. In some embodiments, the thirteenth message includes an RRCReconfiguration message.

[0071] Figure 9FIG. 900 is a flow chart illustrating an example process for providing configuration information in accordance with some embodiments of the present disclosure. In some embodiments, process 900 may be performed by a wireless communication device (e.g., UE 104, UE 204, UE 304, or UE 404, among others). Depending on the embodiment, additional, fewer, or different operations may be performed in process 900. The wireless communication device receives a first index among a plurality of indexes (902) from a wireless communication node (e.g., BS 102, BS 202, NW 302, source gNB 402A, or target gNB 402B, among others). Each of the plurality of indexes is associated with a respective one of a plurality of default configurations configured in a list. The wireless communication device configures the operation of the wireless communication device based on the first index (904). In some embodiments, the wireless communication device receives the list from the wireless communication node before receiving the first index from the wireless communication node.

[0072] In some embodiments, the wireless communication device transmits a first message to the wireless communication node, the first message indicating that the wireless communication device has successfully acquired any one of the plurality of default configurations associated with a second index among the indexes, or indicating whether the wireless communication device supports the default configuration associated with the second index, and receives a second message indicating the first index in response to transmitting the first message. Any number of default configurations associated with the respective index that have been successfully acquired or supported by the communication device may be indicated from the communication device to the communication node in the first message. In some embodiments, the wireless communication device receives a third message indicating the first index associated with one of the plurality of default configurations.

[0073] Figure 10 FIG. 1000 is a flow chart illustrating an example process for providing configuration information in accordance with some embodiments of the present disclosure. In some embodiments, process 1000 may be performed by a wireless communication device (e.g., UE 104, UE 204, UE 504, UE 604, or UE 704, among others). Depending on the embodiment, additional, fewer, or different operations may be performed in process 1000. The wireless communication device receives a configuration related to the first wireless communication node (e.g., BS 102, BS 202, current satellite 502A, or GEO satellite 602A, among others) from the first wireless communication node (1002). The wireless communication device performs the operation of the wireless communication device based on the received configuration (1004).

[0074] In some embodiments, the configuration includes at least one of the following: ephemeris information of a first wireless communication node and a second wireless communication node adjacent to the first wireless communication node (such as BS 102, BS 202, adjacent satellite 502B or LEO satellite 602B, etc.); corresponding physical cell identifiers (PCIs) of the cells of the first wireless communication node and the corresponding PCIs of the cells of the second wireless communication node; the orbit type of the first wireless communication node and the orbit type of the second wireless communication node; the uplink (UL) power requirement of the first wireless communication node and the UL power requirement of the second wireless communication node; the downlink (DL) power requirement of the first wireless communication node and the DL power requirement of the second wireless communication node; the band number of the first wireless communication node and the band number of the second wireless communication node; an indication specifying whether autonomous search is required; one or more non-public network (NPN) identifiers, each of which is associated with restricted access or allowed access; one or more closed access group (CAG) identifiers, each of which is associated with restricted access or allowed access; or one or more public land mobile network (PLMN) identifiers, each of which is associated with restricted access or allowed access.

[0075] In some embodiments, each of the first wireless communication node and the second wireless communication node includes a non-terrestrial network (NTN) communication node. In some embodiments, the configuration is received from the first wireless communication node via a dedicated radio resource control (RRC) message or system information. In some embodiments, the wireless communication device receives the configuration in the RRC inactive state or the RRC idle state. In some embodiments, the wireless communication device selects or reselects a cell based on the configuration.

[0076] In some embodiments, the wireless communication device receives the configuration in the RRC connected state. In some embodiments, the wireless communication device sends a measurement report to the first wireless communication node based on the configuration. In some embodiments, the wireless communication device performs a handover to a cell based on the configuration and sends a message indicating that the handover has been performed to the first wireless communication node.

[0077] In some embodiments, the wireless communication device receives the configuration in the RRC inactive state, or the RRC idle state, or the RRC connected state. In some embodiments, the wireless communication device measures at least one of the following based on the configuration: adjacent cells, frequencies, or measurement objects, and selectively sends a measurement report indicating the measurement results to the first wireless communication node based on the configuration.

[0078] Figure 11FIG. 1100 is a flow chart showing an example process 1100 for providing configuration information according to some embodiments of the present disclosure. In some embodiments, process 1100 may be performed by a first wireless communication node (e.g., BS 102, BS 202, current satellite 502A or GEO satellite 602A, etc.). Depending on the embodiment, additional, fewer, or different operations may be performed in process 1100. The first wireless communication node determines a configuration related to the first wireless communication node (1102). The first wireless communication node sends the configuration to a wireless communication device (e.g., UE 104, UE 204, UE 504, UE 604, UE 704, etc.) (1104).

[0079] In some embodiments, process 800, process 900, process 1000, and / or process 1110 may be performed by a wireless communication device including a processor and a memory. In some embodiments, the processor is configured to read code from the memory and implement process 800, process 900, process 1000, and / or process 1110. In some embodiments, a computer program product includes computer-readable program medium code stored thereon, which, when executed by a processor, causes the processor to implement process 800, process 900, process 1000, and / or process 1110.

[0080] Although various embodiments of the present solution have been described above, it should be understood that they are presented by way of example and not by way of limitation. Similarly, the various figures may depict example architectures or configurations, and these example architectures or configurations are provided to enable those of ordinary skill in the art to understand the example features and functions of the present solution. However, these persons will understand that the present solution is not limited to the example architectures or configurations shown, but may be implemented using a variety of alternative architectures and configurations. Additionally, as those of ordinary skill in the art will understand, one or more features of one embodiment may be combined with one or more features of another embodiment described herein. Therefore, the breadth and scope of the present disclosure should not be limited by any of the illustrative embodiments described above.

[0081] It should also be understood that any reference to elements using names such as "first", "second", etc. generally does not limit the number or order of those elements. Instead, these names are used herein as a convenient means of distinguishing between two or more elements or instances of an element. Thus, the reference to a first element and a second element does not mean that only two elements can be employed, or that the first element must be located before the second element in some manner.

[0082] In addition, those of ordinary skill in the art will understand that any of a variety of different technologies and techniques can be used to represent information and signals. For example, data, instructions, commands, information, signals, bits, and symbols, such as those referred to in the above description, can be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0083] Those of ordinary skill in the art will further understand that any of the various illustrative logical blocks, modules, processors, devices, circuits, methods, and functions described in connection with the aspects disclosed herein can be implemented by electronic hardware (e.g., digital implementations, analog implementations, or combinations of both), firmware, various forms of programs or design code containing instructions (referred to herein for convenience as "software" or "software modules"), or any combination of these technologies. To clearly illustrate this interchangeability of hardware, firmware, and software, the various illustrative components, blocks, modules, circuits, and steps have been generally described above in terms of their functional aspects. Whether such functionality is implemented as hardware, firmware, software, or a combination of these technologies depends on the particular application and design constraints imposed on the overall system. A person skilled in the art can implement the described functionality in various ways for each particular application, but such implementation decisions will not depart from the scope of the present disclosure.

[0084] Furthermore, those of ordinary skill in the art will understand that the various illustrative logical blocks, modules, devices, components, and circuits described herein can be implemented within or executed by an integrated circuit (IC) that can include 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, or any combination thereof. The logical blocks, modules, and circuits can further include an antenna and / or transceiver to communicate with various components within a network or within a device. The general-purpose processor can be a microprocessor, but alternatively, the processor can be any conventional processor, controller, or state machine. The processor can 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 in conjunction with a DSP core, or any other suitable configuration to perform the functions described herein.

[0085] If implemented in software, the functions can be stored as one or more instructions or code on a computer-readable medium. Thus, the steps of the methods or algorithms disclosed herein can be implemented as software stored on a computer-readable medium. Computer-readable media include computer storage media and communication media, which include any medium that enables a computer program or code to be transferred from one place to another. The storage media can be any available media accessible by a computer. By way of example, and not limitation, such computer-readable media can include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired program code in the form of instructions or data structures and that can be accessed by a computer.

[0086] In this document, as used herein, the term "module" refers to software, firmware, hardware, and any combination of these elements to perform the related functions described herein. Additionally, for purposes of discussion, various modules are described as discrete modules; however, it will be apparent to one of ordinary skill in the art that two or more modules can be combined to form a single module that performs the related functions in accordance with an embodiment of the present solution.

[0087] Furthermore, a memory or other storage and communication components can be employed in embodiments of the present solution. It should be understood that, for clarity, the above description has described embodiments of the present solution with reference to different functional units and processors. However, it will be apparent that, without departing from the present solution, any suitable functional distribution between different functional units, processing logic elements, or domains can be used. For example, functionality shown to be performed by separate processing logic elements or controllers can be performed by the same processing logic element or controller. Thus, the reference to a particular functional unit is only a reference to the appropriate means for providing the described functionality and not an indication of a strict logical or physical structure or organization.

[0088] Various modifications to the embodiments described in this disclosure will be apparent to those skilled in the art, and the general principles defined herein can be applied to other embodiments without departing from the scope of the disclosure. Thus, this disclosure is not intended to be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the novel features and principles disclosed herein, as set forth in the following claims.

Claims

1. A wireless communication method, comprising: configuring, by the first wireless communication node, a list indicating a plurality of default configurations, the plurality of default configurations being associated with corresponding indexes; sending, by the first wireless communication node, the list indicating the plurality of default configurations and the corresponding indexes to the wireless communication device; In response to a corresponding message from the wireless communication device indicating whether the wireless communication device supports a default configuration associated with a corresponding index among the multiple default configurations, sending, by the first wireless communication node to the second wireless communication node, a first message indicating the default configuration associated with the corresponding index, the corresponding message including a UECapabilityInformation message, and the first message including a HandoverPreparationInformation message; receiving, by the first wireless communication node from the second wireless communication node, a second message indicating a first index of a plurality of corresponding indexes, the second message comprising a Handover Command message; as well as The first wireless communication node sends a first index of the multiple corresponding indexes to the wireless communication device via an RRCReconfiguration message, and the wireless communication device applies a default configuration corresponding to the first index of the multiple default configurations for operation of the wireless communication device.

2. The wireless communication method according to claim 1, wherein: The first index is associated with one of a plurality of default configurations indicated in the list, and before sending the first index to the wireless communication apparatus, the method further includes: The list is predefined to the wireless communication device. 3 . The wireless communication method according to claim 2 , wherein the list is sent to the wireless communication device via a dedicated radio resource control (RRC) message or system information.

4. The wireless communication method according to claim 1, wherein: The plurality of default configurations include at least one of the following: one or more default radio link control (RLC) configurations; one or more default media access control (MAC) configurations; One or more default physical layer (PHY) configurations; one or more default Service Data Adaptation Protocol (SDAP) configurations; one or more default Packet Data Overlay Protocol (PDCP) configurations; one or more default measurement configurations; one or more default data radio bearer (DRB) configurations; one or more default signaling radio bearer (SRB) configurations; One or more default cell group configurations; one or more default logical channel configurations; one or more default configurations for physical channels; one or more default configurations of the reference signal; or One or more default Random Access Channel (RACH) configurations. The wireless communication method according to claim 4 , wherein: Each of the one or more default RACH configurations includes a plurality of per-beam RACH configurations, each associated with one of a plurality of beams, the number of the per-beam RACH configurations being greater than or equal to the number of beams.

6. The wireless communication method according to claim 1, further comprising: receiving, by the first wireless communication node, a third message from the wireless communication apparatus, the third message indicating that the wireless communication apparatus has successfully acquired any one of a plurality of default configurations associated with a second index in the indexes, or indicating whether the wireless communication apparatus supports the default configuration associated with the second index; and In response to receiving the third message, a fourth message indicating a first index is sent by the first wireless communication node to the wireless communication device.

7. The wireless communication method according to claim 6, wherein: The third message includes at least one of the following: an RRCSetupComplete message, an RRCResumeComplete message, an RRCResetalishmentComplete message or a UECapabilityInformation message.

8. The wireless communication method according to claim 6, wherein: The fourth message includes an RRCReconfiguration message.

9. The wireless communication method according to claim 1, further comprising: sending, by the first wireless communication node to the wireless communication device, a third message indicating a first index associated with one of the plurality of default configurations, The third message includes an RRCReconfiguration message.

10. The wireless communication method according to claim 1, further comprising: determining, by the first wireless communication node, a detailed configuration; and A third message is sent by the first wireless communication node to the wireless communication device, the third message indicating a usage difference between the detailed configuration and one of a plurality of default configurations associated with the first index.

11. The wireless communication method according to claim 1 , further comprising: sending, by the first wireless communication node, a third message to the wireless communication device indicating the first index and an incremental configuration, the incremental configuration comprising a difference between a detailed configuration and one of a plurality of default configurations associated with the first index, The third message includes an RRCReconfiguration message.

12. The wireless communication method according to claim 1, further comprising: in response to receiving a third message indicating a handover, sending, by the first wireless communication node, the list to a second wireless communication node to cause the second wireless communication node to forward the list to the wireless communication device; and In response to receiving the third message, the first index is sent by the first wireless communication node to the second wireless communication node to cause the second wireless communication node to forward the first index to the wireless communication device via a fourth message.

13. The wireless communication method according to claim 12, wherein: The third message includes a HandoverPreparationInformation message, and the fourth message includes an RRCReconfiguration message.

14. The wireless communication method according to claim 1, further comprising: sending, by the first wireless communication node to the wireless communication device, a third message indicating one or more measurement objects, the one or more measurement objects being linked to one or more neighboring cells or frequencies provided in system information, The third message includes an RRCReconfiguration message.

15. A wireless communication method, comprising: receiving, by the wireless communication device from the wireless communication node, a list indicating a plurality of default configurations, each default configuration being associated with a respective index of a plurality of indexes; Receiving, by the wireless communication device, a first index of the plurality of indexes from the wireless communication node via an RRCReconfiguration message, wherein the wireless communication device receives the first index from the first wireless communication node in response to the first wireless communication node receiving a second message from a second wireless communication node, the second message comprising a Handover Command message, the second message indicating the first index of the plurality of indexes, The second wireless communication node sends the second message in response to a first message received from the first wireless communication node, the first message including a HandoverPreparationInformation message indicating a default configuration associated with a corresponding index, wherein the wireless communication device has indicated to the first wireless communication node whether the wireless communication device supports the default configuration; and based on the first index, configuring the operation of the wireless communication device according to the default configuration associated with the first index among the multiple default configurations.

16. The wireless communication method of claim 15, wherein the first index is associated with one of a plurality of default configurations indicated in the list, and wherein The list is predefined for the wireless communication device by the first wireless communication node before the wireless communication device receives the first index from the first wireless communication node. 17 . The wireless communication method of claim 16 , wherein the list is received by the wireless communication device via a dedicated radio resource control (RRC) message or system information.

18. The wireless communication method according to claim 15, wherein: The plurality of default configurations include at least one of the following: one or more default radio link control (RLC) configurations; one or more default media access control (MAC) configurations; One or more default physical layer (PHY) configurations; one or more default Service Data Adaptation Protocol (SDAP) configurations; one or more default Packet Data Overlay Protocol (PDCP) configurations; one or more default measurement configurations; one or more default data radio bearer (DRB) configurations; one or more default Signalling Radio Bearer (SRB) configurations; One or more default cell group configurations; one or more default logical channel configurations; one or more default configurations for physical channels; one or more default configurations of the reference signal; or One or more default Random Access Channel (RACH) configurations.

19. The wireless communication method according to claim 18, wherein: Each of the one or more default RACH configurations includes a plurality of per-beam RACH configurations, each associated with one of a plurality of beams, the number of the per-beam RACH configurations being greater than or equal to the number of beams.

20. The wireless communication method according to claim 15, further comprising: The wireless communication device sends a third message to the wireless communication node, the third message indicating that the wireless communication device has successfully acquired any one of the plurality of default configurations associated with a second index in the indexes, or indicating whether the wireless communication device supports the default configuration associated with the second index; and A fourth message indicating the first index is received by the wireless communication device in response to sending the third message.

21. The wireless communication method according to claim 20, wherein: The third message includes at least one of the following: an RRCSetupComplete message, an RRCResumeComplete message, an RRCResetalishmentComplete message or a UECapabilityInformation message.

22. The wireless communication method according to claim 20, wherein: The fourth message includes an RRCReconfiguration message.

23. The wireless communication method according to claim 15, further comprising: receiving, by the wireless communication device, a third message indicating a first index associated with one of the plurality of default configurations, The third message includes an RRCReconfiguration message.

24. The wireless communication method according to claim 15, further comprising: A third message is received, by the wireless communication apparatus, from the first wireless communication node, the third message indicating a usage difference between a detailed configuration and one of a plurality of default configurations associated with the first index.

25. The wireless communication method according to claim 15, further comprising: receiving, by the wireless communication apparatus, from the first wireless communication node, a third message indicating the first index and an incremental configuration, the incremental configuration comprising a difference between a detailed configuration and one of a plurality of default configurations associated with the first index, The third message includes an RRCReconfiguration message.

26. The wireless communication method according to claim 15, further comprising: receiving, by the wireless communication device, from the first wireless communication node, a third message indicating one or more measurement objects, the one or more measurement objects being linked to one or more neighboring cells or frequencies provided in system information, The third message includes an RRCReconfiguration message.

27. A wireless communication device comprising a processor and a memory, wherein the processor is configured to read code from the memory and implement the method according to any one of claims 1 to 26.

28. A computer program product comprising computer-readable program medium code stored thereon, which, when executed by a processor, causes the processor to carry out the method according to any one of claims 1 to 26.

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