Network access method, related equipment, medium and product

Abstract

The invention discloses a network access method, related equipment, a medium and a product. The method comprises the following steps: receiving system information sent by network equipment; the system information comprises special random access resource configuration and traditional random access resource configuration; sending a dedicated preamble or a random preamble to the network device based on the system information; receiving first information sent by the network equipment; and determining an accessed target physical cell based on the first information.

Description

Technical Field

[0001] This invention relates to the field of communication technology, and in particular to a network access method, related equipment, media, and products. Background Technology

[0002] In related technologies, when a terminal detects the same Physical Cell Identifier (PCI) signal during the network access process, it cannot distinguish cell information with the same PCI. Summary of the Invention

[0003] This application provides a network access method, related equipment, media, and product.

[0004] The technical solution of this application embodiment is implemented as follows:

[0005] A network access method, applied to a terminal, the method comprising:

[0006] Receive system information sent by network devices; the system information includes dedicated random access resource configuration and traditional random access resource configuration.

[0007] Based on the system information, a dedicated preamble or a random preamble is sent to the network device;

[0008] Receive the first information sent by the network device;

[0009] The target physical cell for access is determined based on the first information.

[0010] In the above scheme, sending a dedicated preamble to the network device based on the system information includes:

[0011] If the reference signal reception quality or reference signal reception power is greater than the corresponding preset threshold, the dedicated preamble is sent to the network device based on the dedicated random access resource configuration.

[0012] In the above scheme, receiving the first information sent by the network device includes:

[0013] Receive synchronization signal block information and / or channel state information reference signal information sent by the network device.

[0014] In the above scheme, determining the target physical cell for access based on the first information includes:

[0015] If the first information indicates that there is no identical synchronization signal block information, the target physical cell is determined based on the synchronization signal block information.

[0016] In the above scheme, determining the target physical cell for access based on the first information includes:

[0017] If the first information indicates the existence of identical synchronization signal block information, the target physical cell is determined based on the channel state information reference signal information.

[0018] In the above scheme, sending a random preamble to the network device based on the system information includes:

[0019] If the reference signal reception quality or reference signal reception power is less than or equal to the corresponding preset threshold, the random preamble is sent to the network device based on the conventional random access resource configuration.

[0020] In the above scheme, receiving the first information sent by the network device includes:

[0021] Receive time-domain resources and / or frequency-domain resources sent by the network device.

[0022] In the above scheme, after receiving the first information sent by the network device, the process includes:

[0023] Receive second information sent by the network device; the second information includes one or more of the following:

[0024] The location information of the network device;

[0025] The configuration tag information of the network device;

[0026] Community Global Identifier;

[0027] Measurement configuration information;

[0028] The target physical cell is determined based on the first information and the second information.

[0029] The method in the above scheme further includes:

[0030] Receive neighbor cell measurement information sent by the network device;

[0031] Target non-terrestrial network neighboring cells are selected based on one or more of the following: neighboring cell measurement information, reference signal reception quality, reference signal reception power, terminal location information, satellite ephemeris information, and satellite service time.

[0032] The target non-terrestrial network neighbor cell is reported to the network device.

[0033] A network access method, applied to a network device, the method comprising:

[0034] Send system messages to the terminal; the system information includes dedicated random access resource configuration and traditional random access resource configuration;

[0035] Receive a dedicated preamble or a random preamble sent by the terminal;

[0036] Configure first information based on the dedicated preamble or the random preamble;

[0037] The first information is sent to the terminal.

[0038] In the above scheme, before receiving the random preamble sent by the terminal, the method includes:

[0039] Configure the random preamble based on the number of network devices.

[0040] In the above scheme, configuring the first information based on the dedicated preamble includes:

[0041] Different synchronization signal block information and / or channel state information reference signal information are configured for each physical cell corresponding to the dedicated preamble.

[0042] In the above scheme, sending the configuration first information to the terminal includes:

[0043] Send the synchronization signal block information and / or channel state information reference signal information to the terminal.

[0044] In the above scheme, configuring the first information based on the random preamble includes:

[0045] If the random preamble corresponds to multiple physical cells, different time-domain resources and / or frequency-domain resources are configured for each of the multiple physical cells.

[0046] In the above scheme, sending the configuration first information to the terminal includes:

[0047] Send the time-domain resources and / or frequency-domain resources corresponding to each of the plurality of physical cells to the terminal.

[0048] In the above scheme, after sending the first information to the terminal, the process includes:

[0049] Send a second message to the terminal; the second message includes one or more of the following:

[0050] The location information of the network device;

[0051] The configuration tag information of the network device;

[0052] Community Global Identifier;

[0053] Measurement configuration information.

[0054] The method in the above scheme further includes:

[0055] Send neighbor cell measurement information to the terminal;

[0056] Receive the target non-terrestrial network neighboring cell reported by the terminal;

[0057] The terminal is handed over to one or more neighboring cells in the target non-terrestrial network neighboring cells.

[0058] A network access device, comprising:

[0059] The first receiving unit is used to receive system information sent by the network device; the system information includes dedicated random access resource configuration and traditional random access resource configuration.

[0060] The first sending unit is used to send a dedicated preamble or a random preamble to the network device based on the system information.

[0061] The first receiving unit is further configured to receive first information sent by the network device;

[0062] The first processing unit is used to determine the target physical cell for access based on the first information.

[0063] A network access device, comprising:

[0064] The second sending unit is used to send system messages to the terminal; the system information includes dedicated random access resource configuration and traditional random access resource configuration.

[0065] The second receiving unit is used to receive a dedicated preamble or a random preamble sent by the terminal.

[0066] The second processing unit is used to configure first information based on the dedicated preamble or the random preamble;

[0067] The second sending unit is further configured to send the first information to the terminal.

[0068] A terminal includes: a first communication interface and a first processor; wherein,

[0069] The first communication interface receives system information sent by the network device; the system information includes dedicated random access resource configuration and traditional random access resource configuration; sends a dedicated preamble or a random preamble to the network device based on the system information; and receives first information sent by the network device.

[0070] The first processor is configured to determine the target physical cell for access based on the first information.

[0071] A network device includes: a second communication interface and a second processor; wherein the second communication interface is used to send system messages to a terminal; the system messages include dedicated random access resource configuration and conventional random access resource configuration; and to receive a dedicated preamble or a random preamble sent by the terminal.

[0072] The second processor is configured to configure first information based on the dedicated preamble or the random preamble;

[0073] The second communication interface is also used to send the first information to the terminal.

[0074] A terminal includes: a first processor and a first memory for storing computer programs capable of running on the processor.

[0075] Wherein, when the first processor is used to run the computer program, it executes the steps of any of the methods described above on the terminal side.

[0076] A network device includes: a second processor and a second memory for storing computer programs capable of running on the processor.

[0077] Wherein, when the second processor is used to run the computer program, it executes the steps of any of the methods described above on the network device side.

[0078] A storage medium storing a computer program thereon, which, when executed by a processor, implements the steps of any of the methods described above on the terminal side, or implements the steps of any of the methods described above on the network device side.

[0079] A computer product includes a computer program that, when executed by a processor, implements the steps of any of the methods described above on the terminal side, or implements the steps of any of the methods described above on the network device side.

[0080] The network access method, related equipment, media, and products provided in the embodiments of this application receive system information sent by a network device; the system information includes dedicated random access resource configuration and traditional random access resource configuration; a dedicated preamble or a random preamble is sent to the network device based on the system information; first information is received from the network device; and the target physical cell for access is determined based on the first information. In other words, in the embodiments of this application, the terminal receives system information sent by the network device, sends a dedicated preamble or a random preamble to the network device based on the system information, and then receives the first information sent by the network device to obtain cell information and determine the target physical cell for access. This solves the problem in related technologies where the terminal cannot distinguish cell information with the same PCI signal when detecting the same PCI signal during the network access process, thus optimizing the network access process. Attached Figure Description

[0081] Figure 1 A flowchart illustrating a network access method provided in an embodiment of this application;

[0082] Figure 2 An example diagram illustrating a PCI conflict provided in an embodiment of this application;

[0083] Figure 3 An example diagram illustrating how to avoid PCI conflicts is provided in this application embodiment;

[0084] Figure 4 Another example diagram for avoiding PCI conflicts provided in this application embodiment;

[0085] Figure 5 A flowchart illustrating another network access method provided in an embodiment of this application;

[0086] Figure 6 A flowchart illustrating the process of a base station initiating NCGI reporting, provided in an embodiment of this application;

[0087] Figure 7 A flowchart illustrating the third network access method provided in this application embodiment;

[0088] Figure 8 This is a schematic diagram of the structure of a network access device provided in an embodiment of this application;

[0089] Figure 9 This is a schematic diagram of another network access device provided in an embodiment of this application;

[0090] Figure 10 This is a schematic diagram of the structure of a terminal provided in an embodiment of this application;

[0091] Figure 11 This is a schematic diagram of the structure of a terminal provided in an embodiment of this application. Detailed Implementation

[0092] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application are further described in detail below with reference to the accompanying drawings and embodiments. The described embodiments should not be regarded as limitations on this application. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0093] In the following description, references are made to “some embodiments,” which describe a subset of all possible embodiments. However, it is understood that “some embodiments” may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict.

[0094] The terms "first / second / third" used in this application are merely to distinguish similar objects and do not represent a specific ordering of objects. It is understood that "first / second / third" may be interchanged in a specific order or sequence where permitted, so that the embodiments of this application described herein can be implemented in an order other than that illustrated or described herein.

[0095] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit this application.

[0096] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0097] Embodiments of this application provide a network access method applied to a terminal, as shown below. Figure 1 As shown, the method includes the following steps:

[0098] Step S101: Receive system information sent by the network device.

[0099] The system information includes dedicated random access resource configuration and traditional random access resource configuration.

[0100] Understandably, a terminal can also be called User Equipment (UE), including but not limited to Unmanned Aerial Vehicles (UVA). Network equipment can include, but is not limited to, base stations. Depending on the coverage area of ​​a base station, a base station can be divided into one or more cells, each configured with PCI. Long Term Evolution (LTE) base stations can provide 504 PCIs, and New Radio (NR) base stations can provide 1008 PCIs.

[0101] In practical applications, before accessing the network, a terminal can perform a cell search by obtaining system information broadcast by the base station. Cells with the same PCI will broadcast the exact same system information, which will cause a PCI conflict. In this case, the terminal can receive the signal of the cell with enhanced capability. If there is no PCI conflict, the terminal can access the network through a random access procedure.

[0102] Step S102: Send a dedicated preamble or a random preamble to the network device based on system information.

[0103] Understandably, after receiving system information, the terminal needs to send a preamble to the base station. There are currently 64 preambles available.

[0104] In practical applications, in the event of a PCI conflict, the terminal can use a dedicated random access resource configuration (e.g., MSG1) to send a dedicated preamble to the base station; in the event of no PCI conflict, the terminal can use a traditional random access resource configuration to send a random preamble to the base station.

[0105] Step S103: Receive the first information sent by the network device.

[0106] Understandable, for reference Figure 2 As shown, taking a base station as an example of a cell, after receiving the dedicated preamble sent by the terminal, the base station can determine that there is a cell with the same PCI as itself. The base station can then initiate an Xn or NG interface beam coordination procedure, causing multiple cells with the same PCI to rebroadcast different beam information. The first information may include beam information; for example, the beam information may include different Synchronization Signal Block (SSB) information and / or Channel State Information-Reference Signal (CSI-RS) information.

[0107] In practical applications, for cells with the same PCI, any one of the cells can send the SSB information and / or CSI-RS information to be provided to the terminal to other cells with the same PCI via the Xn interface. The cell that receives the information will then select different SSB information and / or CSI-RS information to configure for the terminal.

[0108] Step S104: Determine the target physical cell for access based on the first information.

[0109] Understandably, the target physical cell can be any one of multiple cells with the same PCI.

[0110] In practical applications, after receiving different beam information from the same PCI cell, the terminal can select the cell to access, i.e., the target physical cell, by combining one or more of its own trajectory information, measured Reference Signal Received Power (RSRP) information, Reference Signal Received Quality (RSRQ) information, and flight direction information.

[0111] As described above, in this embodiment, the terminal receives system information, including dedicated random access resource configuration and traditional random access resource configuration, sent by the network device. In the event of a PCI conflict, the terminal sends a dedicated preamble to the network device based on the system information, and then receives the first information sent by the network device to distinguish cell information and determine the target physical cell for access. This solves the problem in related technologies where the terminal cannot distinguish cell information with the same PCI when detecting the same PCI signal during the network access process, thus optimizing the network access process.

[0112] In some embodiments of this application, step S102, which sends a dedicated preamble to the network device based on system information, can be implemented in the following way:

[0113] If the quality or power of the reference signal reception is greater than the corresponding preset threshold, a dedicated preamble is sent to the network device based on the dedicated random access resource configuration.

[0114] Understandably, the preset threshold can be set according to actual needs, and this application does not impose specific limitations on it.

[0115] In practical applications, when cells with the same PCI broadcast the exact same system information, the RSRP or RSRQ measured by the terminal will be much larger than that of a cell, i.e., greater than the preset threshold corresponding to RSRP or RSRQ. In this case, the terminal can use dedicated random access resource configuration to send a dedicated preamble to the base station.

[0116] In some embodiments of this application, step S103, receiving the first information sent by the network device, can be implemented in the following way:

[0117] Receive synchronization signal block information and / or channel state information reference signal information sent by network devices.

[0118] In practical applications, after receiving the dedicated preamble sent by the terminal, the base station can determine that there is a cell with the same PCI as itself. The base station can then initiate an Xn or NG interface beam coordination procedure, causing multiple cells with the same PCI to rebroadcast different beam information. The first information may include beam information; the beam information may include SSB and / or CSI-RS.

[0119] The Xn interface beam coordination process may include: for cells with the same PCI, any one cell sends SSB information and / or CSI-RS information to be provided to the terminal to other cells with the same PCI via the Xn interface, and the cell receiving the information selects different SSB information to configure for the terminal.

[0120] The NG interface beam coordination process may include: for cells with the same PCI, if they belong to the same core network, the core network can coordinate and allocate SSB information and / or CSI-RS information in a unified manner, and send it to the corresponding cell through the NG interface.

[0121] The same PCI cell broadcasts different SSB information and / or time information. The SSB information can be one or more of SSB index and SSB time offest; the time information is the transmission time of the SSB on the base station side, which can be indicated by Universal Time Chiming (UTC).

[0122] In some embodiments of this application, step S104, which determines the target physical cell for access based on the first information, can be implemented in the following way:

[0123] If the first information indicates that there is no identical synchronization signal block information, the target physical cell is determined based on the synchronization signal block information.

[0124] In practical applications, refer to Figure 3 As shown, after receiving different SSB information from the same PCI cell, the terminal can select the cell to access, i.e., the target physical cell, by combining one or more of its own trajectory information, RSRP information, RSRQ information, and flight direction information.

[0125] In some embodiments of this application, step S104, which determines the target physical cell for access based on the first information, can be implemented in the following way:

[0126] If the first information indicates the existence of the same synchronization signal block information, the target physical cell is determined based on the channel state information and reference signal information.

[0127] In practical applications, refer to Figure 4 As shown, taking a UAV as an example, if cells with the same PCI are still configured with the same SSB information within the UAV's detection range, different CSI-RS information can be configured by optimizing the Transmission Configuration Indicator (TCI)-state. In the TCI-State information element, when configuring the Quality of Service Class Identifier (QCI)-info, different CSI-RS information can be configured for the same SBB-index. The specific configuration of the TCI-State IE can be as follows:

[0128]

[0129]

[0130] In a feasible scenario, refer to Figure 5 As shown, the network access method of this application embodiment can be implemented in the following way:

[0131] Step S501: Cells with the same PCI broadcast identical system information.

[0132] Step S502: After receiving the data, the terminal determines whether RSRP / RSRQ is greater than a certain threshold; if so, proceed to step S503.

[0133] Step S503: The terminal uses a dedicated preamble to access the network.

[0134] Step S504: After receiving the preamble, the network knows that there is a cell with the same PCI as itself. The network-side Xn interface initiates a coordination process, and multiple cells with the same PCI rebroadcast different SSB information.

[0135] Step S505: After receiving different SSB information of the same PCI cell, the terminal combines its own trajectory information with the measured RSRP / RSRQ information and flight direction information to select a suitable cell for access.

[0136] In some embodiments of this application, step S102, which sends a random preamble to the network device based on system information, can be implemented in the following way:

[0137] If the reference signal reception quality or reference signal reception power is less than or equal to the corresponding preset threshold, a random preamble is sent to the network device based on traditional random access resource configuration.

[0138] In practical applications, when a terminal determines that RSRP or RSRQ is less than or equal to the corresponding preset threshold, it can send a random preamble to the base station using traditional random access resource configuration.

[0139] Taking a UAV as the terminal as an example, the base station can divide the existing 64 preambles into multiple groups, and the random preamble can be any one of the preambles in the group. The number of groups is set based on the typical UAV detection range and the allocation of cell PCIs within the detection range. For example, if the UAV can detect a range with a radius of 10 km, and the number of cell PCIs within this range is n:

[0140] 1. If all are NR base stations, then there must be at least k = (n-1008) / 1008+1 sets of identical PCI (the maximum PCI for NR is 1008, and the maximum PCI for LTE is 504).

[0141] 2. If all are LTE base stations, then there must be at least k = (n-504) / 504+1 sets of identical PCIs.

[0142] 3. If there are both LTE base stations and NR base stations, assuming the number of PCIs for the LTE base station is n1 and the number of PCIs for the NR base station is n2, then there must be at least k = (n1-504) / 504+1+(n2-1008) / 1008+1 sets of identical PCIs.

[0143] To avoid confusion, the preamble needs to be divided into at least k groups. That is, within cells with the same PCI, the preamble is configured for the UE in different preamble groups. Table 1 shows an example of this grouping.

[0144]

[0145] Table 1

[0146] The random preamble sent by the terminal to the network device can be any one of the preambles of the aforementioned packets.

[0147] In some embodiments of this application, receiving first information sent by a network device includes:

[0148] Receive time-domain and / or frequency-domain resources sent by network devices.

[0149] In practical applications, when a terminal sends a random preamble to a base station using traditional random access resource configuration, if cells with the same PCI are in the same preamble group, i.e., using the same preamble, the base station can configure different time-domain resources and / or frequency-domain resources and send them to the terminal; the first information may include information about the time-domain resources and / or frequency-domain resources.

[0150] In some embodiments of this application, after receiving the first information sent by the network device, the process includes:

[0151] Receive second information sent by the network device; the second information includes one or more of the following:

[0152] Location information of network devices;

[0153] Network device configuration label information;

[0154] Community Global Identifier;

[0155] Measurement configuration information;

[0156] The target physical cell is determined based on the first information and the second information.

[0157] In practical applications, after the terminal distinguishes cells with the same PCI, it enters the connected state. The base station can then send second information to assist the terminal in measuring cells with the same PCI. Measurement configuration information can be understood as the information generated by the base station when configuring measurement parameters.

[0158] The location information of network devices can be configured by the base station in the following way:

[0159] Method 1: When configuring measurement parameters (egssb-ToMeasure), carry the location information of the ground base station. The location information can be absolute location information, relative location information, absolute azimuth information, or relative azimuth information.

[0160] Location information can be precise or approximate. Approximate location information can be represented by truncated latitude and longitude coordinates.

[0161] Method 2: Configure the measurement parameters of the ground base station location information (egssb-ToMeasure), and the base station provides the terminal with a list of measurement parameters based on the location information.

[0162] Taking ssb-ToMeasure as an example, the cell at location 1 is configured with ssb-ToMeasure set 1, the cell at location 2 is configured with ssb-ToMeasure set 2, and so on. Table 2 shows the configuration examples.

[0163] Cells using PCI 1 at location 1 ssb-ToMeasure set 1 Cells using PCI 1 at location 2 ssb-ToMeasure set 2 Cell using PCI 1 at location n ssb-ToMeasure set n

[0164] Table 2

[0165] The configuration tag information of network devices can be configured by the base station in the following way:

[0166] When configuring measurement parameters (egssb-ToMeasure), configuration tag information is carried. The configuration tag information is represented by a multi-digit random number. The terminal can learn about different cells with the same PCI through different random number tags. The random number can be directly assigned by the base station or obtained by the base station through a certain algorithm. The algorithm takes the location information and / or PCI of the ground base station as input parameters and outputs the corresponding random number.

[0167] Understandably, existing Cell Global Identifiers (CGIs), including the E-UTRAN Cell Global Identifier (ECGI) and the NR Cell Global Identifier (NCGI), can distinguish cells when a base station receives reports from two neighboring cells with the same PCI. However, this process requires the base station to initiate a request. The NR NCGI reporting process can be found by referring to [reference needed]. Figure 6 As shown.

[0168] In practical applications, the base station can directly provide CGI information to the terminal to help the terminal distinguish cells with the same PCI.

[0169] After receiving the first information, the terminal can select the cell to access, i.e. the target physical cell, by combining one or more of the network device's location information, network device configuration tag information, measurement configuration information, and cell global identifier.

[0170] In some embodiments of this application, the method further includes:

[0171] Receive neighbor cell measurement information sent by network devices;

[0172] Target non-terrestrial network neighboring cells are selected based on one or more of the following: neighboring cell measurement information, reference signal reception quality, reference signal reception power, terminal location information, satellite ephemeris information, and satellite service time.

[0173] Report the target non-terrestrial network neighboring cells to the network device.

[0174] In practical applications, if there are non-terrestrial network (NTN) neighboring cells on the base station side, the base station side can configure NTN neighboring cell measurement information for the terminal.

[0175] The terminal performs neighbor cell measurement based on the NTN neighbor cell information configured by the base station. It selects qualified NTN neighbor cells by combining one or more of RSRP, RSRQ, terminal location information, satellite ephemeris information and satellite service time, and reports them to the base station (connected state). The base station then coordinates with the network load. The terrestrial network (TN) transfers some terminals to one or more NTN neighbor cells through the Xn interface.

[0176] Embodiments of this application provide a network access method applied to a network device, with reference to... Figure 7 As shown, the method includes the following steps:

[0177] Step S701: Send a system message to the terminal.

[0178] The system information includes dedicated random access resource configuration and traditional random access resource configuration.

[0179] In practical applications, before accessing the network, a terminal can perform cell search by obtaining system information broadcast by the base station. Cells with the same PCI will broadcast the exact same system information, which will cause a PCI conflict, and the terminal will receive a cell signal with enhanced capabilities. If there is no PCI conflict, the terminal can access the network through a random access procedure.

[0180] Step S702: Receive the dedicated preamble or random preamble sent by the receiving terminal.

[0181] Understandably, after receiving system information, the terminal needs to send a preamble to the base station. There are currently 64 preambles available.

[0182] In practical applications, in the event of a PCI conflict, the terminal can use a dedicated random access resource configuration (e.g., MSG1) to send a dedicated preamble to the base station; in the event of no PCI conflict, the terminal can use a traditional random access resource configuration to send a random preamble to the base station. Taking the terminal as a UAV as an example, the base station can divide the existing 64 preambles into multiple groups, and the random preamble can be any one of the preambles in each group. The number of groups is set based on the typical UAV detection range and the allocation of cell PCIs within the detection range, and the random preamble can be any one of the preambles in each group.

[0183] Step S703: Configure the first information based on a dedicated preamble or a random preamble.

[0184] In practical applications, refer to Figure 2 As shown, taking one base station as an example of one cell, after receiving the dedicated preamble sent by the terminal, the base station can determine that there is a cell with the same PCI as itself. The base station can then initiate an Xn or NG interface beam coordination procedure, causing multiple cells with the same PCI to rebroadcast different beam information. The first information may include beam information; for example, the beam information may include different SSB information and CSI-RS information.

[0185] After receiving the random preamble sent by the terminal, the base station uses a random access procedure to connect the terminal to the network.

[0186] Step S704: Send the first information to the terminal.

[0187] In practical applications, for cells with the same PCI, any one of the cells can send the SSB information and / or CSI-RS information to be provided to the terminal to other cells with the same PCI via the Xn interface. The cell that receives the information will then select different SSB information and / or CSI-RS information to configure for the terminal.

[0188] As described above, in this embodiment, the terminal receives system information, including dedicated random access resource configuration and traditional random access resource configuration, sent by the network device. In the event of a PCI conflict, the terminal sends a dedicated preamble to the network device based on the system information, and then receives the first information sent by the network device to distinguish cell information and determine the target physical cell for access. This solves the problem in related technologies where the terminal cannot distinguish cell information with the same PCI when detecting the same PCI signal during the network access process, thus optimizing the network access process.

[0189] In some embodiments of this application, before step S702 receiving the random preamble sent by the terminal, the method includes:

[0190] Configure a random preamble based on the number of network devices.

[0191] In practical applications, taking a UAV as the terminal as an example, the base station can divide the existing 64 preambles into multiple groups, and the random preamble can be any one of the preambles in the group. The number of groups is set based on the typical UAV detection range and the allocation of cell PCI within the detection range. The setting method is the same as the steps mentioned above and will not be repeated here.

[0192] In some embodiments of this application, step S703, which configures the first information based on a dedicated preamble, can be implemented in the following way:

[0193] Configure different synchronization signal block information and / or channel state information reference signal information for each physical cell corresponding to the dedicated preamble.

[0194] In practical applications, when cells with the same PCI broadcast the exact same system information, the RSRP or RSRQ measured by the terminal will be much larger than that of a cell, i.e., greater than the preset threshold corresponding to RSRP or RSRQ. In this case, the terminal can use dedicated random access resource configuration to send a dedicated preamble to the base station.

[0195] After receiving the dedicated preamble from the terminal, the base station can determine that there is a cell with the same PCI as itself. The base station can then initiate an Xn or NG interface beam coordination procedure to rebroadcast different beam information to multiple cells with the same PCI. The beam coordination procedure can be referred to the steps described above and will not be repeated here.

[0196] In some embodiments of this application, step S704, which sends configuration first information to the terminal, can be implemented in the following way:

[0197] Send synchronization signal block information and / or channel state information and reference signal information to the terminal.

[0198] In practical applications, the base station configures the SSB information and / or CSI-RS information through the beam coordination process and then sends it to the terminal.

[0199] In some embodiments of this application, step S703, which configures the first information based on a random preamble, can be implemented in the following way:

[0200] If the random preamble corresponds to multiple physical cells, different time-domain resources and / or frequency-domain resources are configured for each of the multiple physical cells.

[0201] In practical applications, when a terminal determines that RSRP or RSRQ is less than or equal to the corresponding preset threshold, it can send a random preamble to the base station using traditional random access resource configuration.

[0202] Taking a UAV as the terminal as an example, the base station can divide the existing 64 preambles into multiple groups, and the random preamble can be any one of the preambles in the group. The number of groups is set based on the usual UAV detection range and the allocation of cell PCI within the detection range. The setting method is the same as the steps mentioned above, and will not be repeated here.

[0203] When a terminal sends a random preamble to a base station using traditional random access resource configuration, if cells with the same PCI are in the same preamble group, i.e., using the same preamble, the base station can configure different time-domain resources and / or frequency-domain resources and send them to the terminal.

[0204] In some embodiments of this application, sending configuration first information to the terminal includes:

[0205] Send the time-domain resources and / or frequency-domain resources corresponding to each of the multiple physical cells to the terminal.

[0206] In practical applications, when a terminal sends a random preamble to a base station using traditional random access resource configuration, if cells with the same PCI are in the same preamble group (i.e., using the same preamble), the base station can configure different time-domain and / or frequency-domain resources and send them to the terminal. The first information may include information about the time-domain and / or frequency-domain resources.

[0207] In some embodiments of this application, after sending the first information to the terminal, the method further includes:

[0208] Send a second message to the terminal; the second message includes one or more of the following:

[0209] Location information of network devices;

[0210] Network device configuration label information;

[0211] Community Global Identifier;

[0212] Measurement configuration information.

[0213] In practical applications, after the terminal identifies cells with the same PCI, it enters the connected state. The base station can then send second information to assist the terminal in measuring cells with the same PCI. The configuration method for the second information is the same as the aforementioned steps and will not be repeated here.

[0214] After receiving the first information, the terminal can select the cell to access, i.e. the target physical cell, by combining one or more of the network device's location information, network device configuration tag information, measurement configuration information, and cell global identifier.

[0215] In some embodiments of this application, the method further includes:

[0216] Send neighboring cell measurement information to the terminal;

[0217] The target non-terrestrial network neighbor cell reported by the receiving terminal;

[0218] Transfer the terminal to one or more neighboring cells in the target non-terrestrial network.

[0219] In practical applications, if there are NTN neighboring cells on the base station side, the base station side can configure NTN neighboring cell measurement information for the terminal.

[0220] The terminal performs neighbor cell measurement based on the NTN neighbor cell information configured by the base station. It selects qualified NTN neighbor cells by combining one or more of RSRP, RSRQ, terminal location information, satellite ephemeris information and satellite service time, and reports them to the base station (connected state). The base station then coordinates with the network load situation, and the TN transfers some terminals to one or more NTN neighbor cells through the Xn interface.

[0221] Based on the same inventive concept as described above Figure 8 This is a schematic diagram of a network access device provided in an embodiment of the present invention. The device 800 includes:

[0222] The first receiving unit 801 is used to receive system information sent by the network device; the system information includes dedicated random access resource configuration and traditional random access resource configuration.

[0223] The first transmitting unit 802 is used to send a dedicated preamble or a random preamble to the network device based on system information.

[0224] The first receiving unit 801 is also used to receive first information sent by the network device;

[0225] The first processing unit 803 is used to determine the target physical cell for access based on the first information.

[0226] In some embodiments of this application, the first transmitting unit 802 is further configured to send a dedicated preamble to the network device based on a dedicated random access resource configuration if the reference signal reception quality or reference signal reception power is greater than the corresponding preset threshold.

[0227] In some embodiments of this application, the first receiving unit 801 is further configured to receive synchronization signal block information and / or channel state information reference signal information sent by the network device.

[0228] In some embodiments of this application, the first processing unit 803 is further configured to determine the target physical cell based on the synchronization signal block information if the first information indicates that there is no identical synchronization signal block information.

[0229] In some embodiments of this application, the first processing unit 803 is further configured to determine the target physical cell based on the channel state information reference signal information if the first information indicates the existence of the same synchronization signal block information.

[0230] In some embodiments of this application, the first transmitting unit 802 is further configured to send a random preamble to the network device based on conventional random access resource configuration if the reference signal reception quality or reference signal reception power is less than or equal to the corresponding preset threshold.

[0231] In some embodiments of this application, the first receiving unit 801 is further configured to receive time-domain resources and / or frequency-domain resources sent by the network device.

[0232] In some embodiments of this application, the first receiving unit 801 is further configured to receive second information sent by the network device; the second information includes one or more of the following:

[0233] Location information of network devices;

[0234] Network device configuration label information;

[0235] Community Global Identifier;

[0236] Measurement configuration information;

[0237] The first processing unit 803 is also used to determine the target physical cell based on the first information and the second information.

[0238] In some embodiments of this application, the first receiving unit 801 is further configured to receive neighboring cell measurement information sent by the network device; the first processing unit 803 is further configured to filter target non-terrestrial network neighboring cells based on one or more of the neighboring cell measurement information, reference signal reception quality, reference signal reception power, terminal location information, satellite ephemeris information and satellite service time.

[0239] The first transmitting unit 802 is also used to report the target non-terrestrial network neighbor cell to the network device.

[0240] Based on the same inventive concept as described above Figure 9 This is a schematic diagram of a network access device provided in an embodiment of the present invention. The device 900 includes:

[0241] The second sending unit 901 is used to send system messages to the terminal; the system information includes dedicated random access resource configuration and traditional random access resource configuration.

[0242] The second receiving unit 902 is used to receive a dedicated preamble or a random preamble sent by the terminal.

[0243] The second processing unit 903 is used to configure the first information based on a dedicated preamble or a random preamble.

[0244] The second sending unit 901 is also used to send the first information to the terminal.

[0245] In some embodiments of this application, the second processing unit 903 is further configured to configure a random preamble based on the number of network devices.

[0246] In some embodiments of this application, the second processing unit 903 is further configured to configure different synchronization signal block information and / or channel state information reference signal information for each physical cell corresponding to the dedicated preamble.

[0247] In some embodiments of this application, the second transmitting unit 901 is further configured to transmit synchronization signal block information and / or channel state information reference signal information to the terminal.

[0248] In some embodiments of this application, the second processing unit 903 is further configured to configure different time-domain resources and / or frequency-domain resources for each of the multiple physical cells if the random preamble corresponds to multiple physical cells.

[0249] In some embodiments of this application, the second sending unit 901 is further configured to send time-domain resources and / or frequency-domain resources corresponding to each of the multiple physical cells to the terminal.

[0250] In some embodiments of this application, the second sending unit 901 is further configured to send second information to the terminal; the second information includes one or more of the following:

[0251] Location information of network devices;

[0252] Network device configuration label information;

[0253] Community Global Identifier;

[0254] Measurement configuration information.

[0255] In some embodiments of this application, the second sending unit 901 is further configured to send neighboring cell measurement information to the terminal; the second receiving unit 902 is further configured to receive the target non-terrestrial network neighboring cells reported by the terminal; and the second processing unit 903 is further configured to transfer the terminal to one or more of the target non-terrestrial network neighboring cells.

[0256] It should be noted that the network access device provided in the above embodiments is only illustrated by the division of the above program modules when performing network access. In actual applications, the above processing can be assigned to different program modules as needed, that is, the internal structure of the device can be divided into different program modules to complete all or part of the processing described above. In addition, the network access device and the network access method embodiments provided in the above embodiments belong to the same concept, and the specific implementation process can be found in the method embodiments, which will not be repeated here.

[0257] Based on the hardware implementation of the above program modules, and in order to implement the terminal-side method of the embodiments of this application, the embodiments of this application also provide a terminal, such as... Figure 10 As shown, the terminal 1000 includes:

[0258] The first communication interface 1001 is capable of exchanging information with network devices;

[0259] The first processor 1002 is connected to the first communication interface 1001 to enable information interaction with the terminal and to execute the methods provided by one or more technical solutions on the network device side when running computer programs.

[0260] The computer program is stored in the first memory 1003.

[0261] Specifically, the first communication interface 1001 is used to receive system information sent by the network device; the system information includes dedicated random access resource configuration and traditional random access resource configuration; based on the system information, it sends a dedicated preamble or a random preamble to the network device; and receives first information sent by the network device.

[0262] The first processor 1002 is used to determine the target physical cell for access based on the first information.

[0263] In some embodiments of this application, the first communication interface 1001 is further configured to send a dedicated preamble to the network device based on a dedicated random access resource configuration if the reference signal reception quality or reference signal reception power is greater than the corresponding preset threshold.

[0264] In some embodiments of this application, the first communication interface 1001 is also used to receive synchronization signal block information and / or channel state information reference signal information sent by the network device.

[0265] In some embodiments of this application, a first processor 1002 is configured to determine a target physical cell based on synchronization signal block information if first information indicates that there is no identical synchronization signal block information.

[0266] In some embodiments of this application, the first processor 1002 is configured to determine the target physical cell based on channel state information reference signal information if the first information indicates the existence of the same synchronization signal block information.

[0267] In some embodiments of this application, the first communication interface 1001 is used to send a random preamble to the network device based on conventional random access resource configuration if the reference signal reception quality or reference signal reception power is less than or equal to the corresponding preset threshold.

[0268] In some embodiments of this application, the first communication interface 1001 is used to receive time-domain resources and / or frequency-domain resources sent by the network device.

[0269] In some embodiments of this application, the first communication interface 1001 is used to receive second information sent by a network device; the second information includes one or more of the following:

[0270] Location information of network devices;

[0271] Network device configuration label information;

[0272] Community Global Identifier;

[0273] Measurement configuration information;

[0274] The first processor 1002 is used to determine the target physical cell based on the first information and the second information.

[0275] In some embodiments of this application, the first communication interface 1001 is used to receive neighboring cell measurement information sent by the network device; the first processor 1002 is used to filter target non-terrestrial network neighboring cells based on one or more of the neighboring cell measurement information, reference signal reception quality, reference signal reception power, terminal location information, satellite ephemeris information and satellite service time; the first communication interface 1001 is used to report the target non-terrestrial network neighboring cells to the network device.

[0276] It should be noted that the specific processing procedures of the first communication interface 1001 and the first processor 1002 can be understood by referring to the above method, and will not be repeated here.

[0277] Of course, in practical applications, the various components in terminal 1000 are coupled together through bus system 1004. It can be understood that bus system 1004 is used to realize the connection and communication between these components. In addition to a data bus, bus system 1004 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, in... Figure 10 The general labeled all buses as Bus System 1004.

[0278] The first memory 1003 in this embodiment is used to store various types of data to support the operation of the terminal 1000. Examples of such data include any computer program used to operate on the terminal 1000.

[0279] The methods disclosed in the above embodiments of this application can be applied to the first processor 1002, or implemented by the first processor 1002. The first processor 1002 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the integrated logic circuit of the hardware or by instructions in the form of software in the first processor 1002. The first processor 1002 may be a general-purpose processor, a digital signal processor (DSP), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The first processor 1002 can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of this application can be directly manifested as being executed by a hardware decoding processor, or being executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium, which is located in the first memory 1003. The first processor 1002 reads the information in the first memory 1003 and completes the steps of the aforementioned method in combination with its hardware.

[0280] In an exemplary embodiment, terminal 1000 may be implemented by one or more application-specific integrated circuits (ASICs), DSPs, programmable logic devices (PLDs), complex programmable logic devices (CPLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers (MCUs), microprocessors, or other electronic components to perform the aforementioned method.

[0281] Based on the hardware implementation of the above program modules, and in order to implement the method on the network device side of the embodiments of this application, the embodiments of this application also provide a network device, such as... Figure 11 As shown, the network device 1100 includes:

[0282] The second communication interface 1101 is capable of exchanging information with the terminal;

[0283] The second processor 1102 is connected to the first communication interface 1101 to enable information interaction with the terminal and to execute the methods provided by one or more technical solutions on the network device side when running computer programs.

[0284] The computer program is stored in the second memory 1103.

[0285] Specifically, the second communication interface 1101 is used to send system messages to the terminal; the system information includes dedicated random access resource configuration and traditional random access resource configuration; and to receive dedicated preambles or random preambles sent by the terminal.

[0286] The second processor 1102 is used to configure the first information based on a dedicated preamble or a random preamble;

[0287] The second communication interface 1101 is used to send the first information to the terminal.

[0288] In some embodiments of this application, the second processor 1102 is used to configure a random preamble based on the number of network devices.

[0289] In some embodiments of this application, the second processor 1102 is configured to configure different synchronization signal block information and / or channel state information reference signal information for each physical cell corresponding to the dedicated preamble.

[0290] In some embodiments of this application, the second communication interface 1101 is used to send synchronization signal block information and / or channel state information reference signal information to the terminal.

[0291] In some embodiments of this application, the second processor 1102 is configured to configure different time-domain resources and / or frequency-domain resources for each of the multiple physical cells if the random preamble corresponds to multiple physical cells.

[0292] In some embodiments of this application, the second communication interface 1101 is used to send time-domain resources and / or frequency-domain resources corresponding to each of the multiple physical cells to the terminal.

[0293] In some embodiments of this application, the second communication interface 1101 is used to send second information to the terminal; the second information includes one or more of the following:

[0294] Location information of network devices;

[0295] Network device configuration label information;

[0296] Community Global Identifier;

[0297] Measurement configuration information.

[0298] In some embodiments of this application, the second communication interface 1101 is used to send neighboring cell measurement information to the terminal and receive target non-terrestrial network neighboring cells reported by the terminal; the second processor 1102 is used to transfer the terminal to one or more neighboring cells in the target non-terrestrial network neighboring cells.

[0299] It should be noted that the specific processing procedures of the second communication interface 1101 and the second processor 1102 can be understood by referring to the above method, and will not be repeated here.

[0300] Of course, in practical applications, the various components in network device 1100 are coupled together through bus system 1104. It can be understood that bus system 1104 is used to implement communication between these components. In addition to a data bus, bus system 1104 also includes a power bus, a control bus, and a status signal bus. However, for clarity, in... Figure 11 The general designated all buses as Bus System 1104.

[0301] The second memory 1103 in this embodiment is used to store various types of data to support the operation of the network device 1100. Examples of such data include any computer program used to operate on the network device 1100.

[0302] The methods disclosed in the above embodiments of this application can be applied to the second processor 1102, or implemented by the second processor 1102. The second processor 1102 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the integrated logic circuit of the hardware or by instructions in the form of software in the second processor 1102. The second processor 1102 may be a general-purpose processor, a DSP, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The second processor 1102 can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of this application can be directly manifested as being executed by a hardware decoding processor, or being executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium, which is located in the second memory 1103. The second processor 1102 reads the information in the second memory 1103 and completes the steps of the aforementioned method in conjunction with its hardware.

[0303] In an exemplary embodiment, the network device 1100 may be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general-purpose processors, controllers, MCUs, microprocessors, or other electronic components to perform the aforementioned method.

[0304] It is understood that the memories (first memory 1003, second memory 1103) in the embodiments of this application can be volatile memory or non-volatile memory, or both. Non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), magnetic random access memory (FRAM), flash memory, magnetic surface memory, optical disc, or compact disc read-only memory (CD-ROM); magnetic surface memory can be disk storage or magnetic tape storage. Volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), SyncLink Dynamic Random Access Memory (SLDRAM), and Direct Rambus Random Access Memory (DRRAM).The memories described in the embodiments of this application are intended to include, but are not limited to, these and any other suitable types of memories.

[0305] In an exemplary embodiment, this application also provides a storage medium, namely a computer storage medium, specifically a computer-readable storage medium, such as a first memory 1003 storing a computer program, which can be executed by the first processor 1002 of the terminal 1000 to complete the steps described in the aforementioned terminal-side method. Another example is a second memory 1103 storing a computer program, which can be executed by the second processor 1102 of the network device 1100 to complete the steps described in the aforementioned network device-side method. The computer-readable storage medium can be a memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disc, or CD-ROM.

[0306] It should be noted that the aforementioned computer storage media can be ROM, PROM, EPROM, EEPROM, FRAM, Flash Memory, magnetic surface memory, optical disc, or CD-ROM, etc.; or it can be various electronic devices that include one or any combination of the above-mentioned storage media, such as mobile phones, computers, tablet devices, personal digital assistants, etc.

[0307] Based on the foregoing embodiments, embodiments of this application also provide a computer product, including a computer program, which, when executed by a processor, implements... Figure 1 or Figure 7 The steps in the network access method provided in the corresponding embodiment.

[0308] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0309] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0310] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0311] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0312] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0313] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0314] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A network access method, characterized in that, Applied to a terminal, the method includes: Receive system information sent by network devices; the system information includes dedicated random access resource configuration and traditional random access resource configuration. Based on the system information, a dedicated preamble or a random preamble is sent to the network device; Receive the first information sent by the network device; The target physical cell for access is determined based on the first information.

2. The method according to claim 1, characterized in that, Sending a dedicated preamble to the network device based on the system information includes: If the reference signal reception quality or reference signal reception power is greater than the corresponding preset threshold, the dedicated preamble is sent to the network device based on the dedicated random access resource configuration.

3. The method according to claim 2, characterized in that, The receipt of the first information sent by the network device includes: Receive synchronization signal block information and / or channel state information reference signal information sent by the network device.

4. The method according to claim 3, characterized in that, The step of determining the target physical cell for access based on the first information includes: If the first information indicates that there is no identical synchronization signal block information, the target physical cell is determined based on the synchronization signal block information.

5. The method according to claim 3, characterized in that, The step of determining the target physical cell for access based on the first information includes: If the first information indicates the existence of identical synchronization signal block information, the target physical cell is determined based on the channel state information reference signal information.

6. The method according to claim 1, characterized in that, Sending a random preamble to the network device based on the system information includes: If the reference signal reception quality or reference signal reception power is less than or equal to the corresponding preset threshold, the random preamble is sent to the network device based on the conventional random access resource configuration.

7. The method according to claim 6, characterized in that, The receipt of the first information sent by the network device includes: Receive time-domain resources and / or frequency-domain resources sent by the network device.

8. The method according to claim 1, characterized in that, After receiving the first information sent by the network device, the process includes: Receive second information sent by the network device; the second information includes one or more of the following: The location information of the network device; The configuration tag information of the network device; Community Global Identifier; Measurement configuration information; The target physical cell is determined based on the first information and the second information.

9. The method according to claim 8, characterized in that, The method further includes: Receive neighbor cell measurement information sent by the network device; Target non-terrestrial network neighboring cells are selected based on one or more of the following: neighboring cell measurement information, reference signal reception quality, reference signal reception power, terminal location information, satellite ephemeris information, and satellite service time. The target non-terrestrial network neighbor cell is reported to the network device.

10. A network access method, characterized in that, Applied to network devices, the method includes: Send system messages to the terminal; the system information includes dedicated random access resource configuration and traditional random access resource configuration; Receive a dedicated preamble or a random preamble sent by the terminal; Configure first information based on the dedicated preamble or the random preamble; The first information is sent to the terminal.

11. The method according to claim 10, characterized in that, Before receiving the random preamble sent by the terminal, the method includes: Configure the random preamble based on the number of network devices.

12. The method according to claim 10, characterized in that, The configuration of the first information based on the dedicated preamble includes: Different synchronization signal block information and / or channel state information reference signal information are configured for each physical cell corresponding to the dedicated preamble.

13. The method according to claim 12, characterized in that, Sending the configuration first information to the terminal includes: Send the synchronization signal block information and / or channel state information reference signal information to the terminal.

14. The method according to claim 10, characterized in that, The configuration of the first information based on the random preamble includes: If the random preamble corresponds to multiple physical cells, different time-domain resources and / or frequency-domain resources are configured for each of the multiple physical cells.

15. The method according to claim 14, characterized in that, Sending the configuration first information to the terminal includes: Send the time-domain resources and / or frequency-domain resources corresponding to each of the plurality of physical cells to the terminal.

16. The method according to claim 10, characterized in that, After sending the first information to the terminal, the process includes: Send a second message to the terminal; the second message includes one or more of the following: The location information of the network device; The configuration tag information of the network device; Community Global Identifier; Measurement configuration information.

17. The method according to claim 16, characterized in that, The method further includes: Send neighbor cell measurement information to the terminal; Receive the target non-terrestrial network neighboring cell reported by the terminal; The terminal is handed over to one or more neighboring cells in the target non-terrestrial network neighboring cells.

18. A terminal, characterized in that, include: A first communication interface and a first processor; wherein... The first communication interface receives system information sent by the network device; the system information includes dedicated random access resource configuration and traditional random access resource configuration; sends a dedicated preamble or a random preamble to the network device based on the system information; and receives first information sent by the network device. The first processor is configured to determine the target physical cell for access based on the first information.

19. A network device, characterized in that, include: A second communication interface and a second processor; wherein the second communication interface is used to send system messages to the terminal; The system information includes dedicated random access resource configuration and traditional random access resource configuration; it receives dedicated preambles or random preambles sent by the terminal; The second processor is configured to configure first information based on the dedicated preamble or the random preamble; The second communication interface is also used to send the first information to the terminal.

20. A terminal, characterized in that, include: A first processor and a first memory for storing computer programs capable of running on the processor. Wherein, when the first processor is used to run the computer program, it performs the steps of the method according to any one of claims 1 to 9.

21. A network device, characterized in that, Includes: a second processor and a second memory for storing computer programs capable of running on the processor. Wherein, when the second processor is used to run the computer program, it performs the steps of the method according to any one of claims 10 to 17.

22. A storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 9 or 10 to 17.

23. A computer product comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 9 or 10 to 17.

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