Information processing method, terminal, network device, and processor-readable storage medium

Abstract

The present disclosure relates to the technical field of communications. Provided are an information processing method, a terminal, a network device, and a processor-readable storage medium. The method comprises: a terminal acquiring first information and / or second information provided by a network device; and the terminal selecting a target cell on the basis of the first information and / or the second information.

Description

Information processing method, terminal, network device and processor readable storage medium

[0001] The present disclosure claims priority to the Chinese patent application No. 202411024789.4, filed on July 29, 2024, and entitled "Information processing method, terminal, network device and processor readable storage medium", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present disclosure relates to the technical field of communication, and in particular to an information processing method, a terminal, a network device and a processor readable storage medium. BACKGROUND

[0003] Currently, a satellite assisted information of a serving cell is broadcasted by system information, and a satellite assisted information of a neighbor cell or a non-continuous coverage, a terminal or user equipment (UE) performs a cell selection or reselection measurement process based on the satellite assisted information broadcasted by the system information of the current serving cell. The neighbor cell or the non-continuous coverage provides continuous or successive coverage for the geographical location of the current serving cell (for example, a satellite providing continuous or successive coverage). In a store and forward (S&F) scenario, the core network side can notify the UE of the identity (ID) information of one or more satellites, and notify the UE of a satellite for subsequent access (for example, a satellite providing continuous or successive service). However, the satellite providing continuous or successive service may not be the satellite providing continuous or successive coverage for the coverage range of the current serving cell, that is, according to the currently broadcasted satellite assisted information of the neighbor cell or the non-continuous coverage, the UE may not be able to obtain the satellite assisted information of the satellite for subsequent access indicated by the core network side, and due to the mobility of the UE or the satellite, the UE may miss the satellite indicated by the core network side, the UE cannot select the target satellite indicated by the core network, and how the UE obtains the satellite assisted information for subsequent access and how the UE selects a target cell and / or performs measurement based on the satellite assisted information of different types of satellites provided by the network need to be solved. SUMMARY

[0004] The present disclosure provides an information processing method, a terminal, a network device and a processor readable storage medium, which solves the problem that there is no solution for how the UE obtains the satellite assisted information for subsequent access and how the UE selects a target cell and / or performs measurement based on the satellite assisted information of different types of satellites provided by the network.

[0005] An embodiment of the present disclosure provides an information processing method, comprising:

[0006] The terminal obtains first information and / or second information provided by the network device.

[0007] The terminal selects a target cell according to the first information and / or the second information.

[0008] In some embodiments, the first information comprises at least one of:

[0009] The network device indicates assistance information of a satellite accessed by the terminal;

[0010] The network device indicates assistance information of a satellite providing the same service for the terminal;

[0011] The network device indicates assistance information of a satellite providing continuous service for the terminal;

[0012] The network device indicates assistance information of a satellite registered by the terminal;

[0013] The network device indicates assistance information of a satellite capable of resuming a current communication process of the terminal;

[0014] The network device indicates assistance information of a satellite connected to a same ground network unit as a current serving satellite;

[0015] And / or,

[0016] The second information comprises at least one of:

[0017] The network device indicates assistance information of a neighboring cell satellite;

[0018] The network device indicates assistance information of a serving cell satellite;

[0019] The network device indicates assistance information of a non-continuous coverage satellite.

[0020] In some embodiments, the terminal selects a target cell according to the second information, comprising:

[0021] The terminal determines the first information according to the second information;

[0022] The terminal selects a target cell according to the first information.

[0023] In some embodiments, the terminal determines the first information according to the second information, comprising:

[0024] The terminal receives first association information sent by the network device, and obtains the first information from the second information according to the first association information;

[0025] Or,

[0026] The terminal determines the first information according to the second information when determining that the network device works in a first network operation mode.

[0027] In some embodiments, the terminal selects a target cell according to the first information, comprising:

[0028] In a case where the first condition is met, the terminal selects a target cell according to the first information; wherein the first condition comprises at least one of the following:

[0029] The first information comprises auxiliary information of at least one target satellite;

[0030] The terminal acquires first indication information;

[0031] The cell from which the terminal acquires the first information is a cell from which the terminal last left a connected state;

[0032] The terminal supports a first network operation mode;

[0033] The network architecture of the network device is a first architecture type;

[0034] Within a valid time.

[0035] In some embodiments, the terminal selects a target cell according to the second information, comprising:

[0036] In a case where the second condition is met, the terminal selects a target cell according to the second information; wherein the second condition comprises at least one of the following:

[0037] The first information does not comprise auxiliary information of any target satellite;

[0038] The terminal does not acquire first indication information;

[0039] The terminal acquires second indication information;

[0040] Exceeds a valid time;

[0041] Not within a valid time;

[0042] The terminal does not support a first network operation mode;

[0043] The network architecture of the network device is a second architecture type;

[0044] The terminal does not receive indication information for indicating a target satellite.

[0045] In some embodiments, after the terminal selects a target cell according to the first information and / or the second information, further comprising:

[0046] The terminal determines third information; wherein the third information is used to determine at least one of the following:

[0047] Whether to trigger a connection establishment process of an access layer;

[0048] Transmitting the content of the data packet

[0049] Transmitting the content of the non-access stratum signaling

[0050] Timer length of the non-access stratum

[0051] Operation mode of the non-access stratum timer

[0052] Operation mode of the non-access stratum timer

[0053] In some embodiments, the third information comprises at least one of:

[0054] Satellite identification information of the selected target cell

[0055] Satellite network architecture information of the selected target cell

[0056] Satellite operation mode information of the selected target cell

[0057] Satellite validity time information of the selected target cell

[0058] Satellite assistance information of the selected target cell

[0059] In some embodiments, in the case that the target cell is selected according to the second information, or the satellite of the selected target cell does not match the target satellite, the method further comprises at least one of:

[0060] The terminal does not perform paging message monitoring in the selected target cell

[0061] The terminal monitors system information modification notification in the selected target cell

[0062] In some embodiments, in the case that the target cell is selected according to the first information, or the satellite of the target cell matches the target satellite, the method further comprises at least one of:

[0063] The terminal performs paging message monitoring in the selected target cell

[0064] The terminal monitors system information modification notification in the selected target cell

[0065] In some embodiments, the information processing method further comprises:

[0066] The terminal determines whether to perform a first operation in the target cell according to the indication information, wherein the first operation comprises at least one of: a regular access stratum operation, monitoring a paging message, and initiating an access procedure

[0067] In some embodiments, the information processing method further comprises at least one of:

[0068] In a case where the terminal selects the first cell, the terminal stores the first information provided by the first cell or updates the first information stored by the terminal to the first information provided by the first cell;

[0069] In a case where the terminal leaves the connected state from the second cell, the terminal stores the first information provided by the second cell or updates the first information stored by the terminal to the first information provided by the second cell;

[0070] The terminal stores or updates the first information based on an indication of high layer signaling;

[0071] The terminal deletes the first information stored by the terminal after an effective time of the first information stored by the terminal is exceeded;

[0072] In a case where the terminal accesses a target satellite, the terminal deletes the first information stored by the terminal.

[0073] Embodiments of the present application further provide an information processing method, comprising:

[0074] The network device provides the first information and / or the second information for the terminal; wherein the first information and / or the second information is used for the terminal to select a target cell.

[0075] In some embodiments, the first information comprises at least one of the following:

[0076] The network device indicates auxiliary information of a satellite accessed by the terminal;

[0077] Auxiliary information of a satellite providing the same service for the terminal;

[0078] Auxiliary information of a satellite providing continuous service for the terminal;

[0079] Auxiliary information of a satellite registered by the terminal;

[0080] Auxiliary information of a satellite capable of recovering a current communication process of the terminal;

[0081] Auxiliary information of a satellite connected to a same ground network unit as a satellite currently serving the terminal;

[0082] and / or,

[0083] The second information comprises at least one of the following:

[0084] Auxiliary information of a satellite of a neighboring cell;

[0085] Auxiliary information of a satellite of a serving cell;

[0086] Auxiliary information of a satellite of a predicted non-continuous coverage.

[0087] In some embodiments, the network device provides the terminal with the first information and / or the second information, including:

[0088] The network device sends the terminal first signaling and / or second signaling; wherein the first signaling carries the first information, and the second signaling carries the second information.

[0089] Or,

[0090] The network device sends the terminal first association information; wherein the first association information is used to obtain the first information from the second information.

[0091] Or,

[0092] The network device sends the terminal second signaling; wherein the second signaling carries the second information, and the first information is determined based on the second information when the network device works in the first network operation mode.

[0093] In some embodiments, the information processing method further includes at least one of the following:

[0094] The network device sends the terminal first indication information; wherein the first indication information is used to instruct the terminal to select a target cell according to the first information.

[0095] The network device sends the terminal second indication information; wherein the second indication information is used to instruct the terminal to select a target cell according to the second information.

[0096] The network device works in the first network operation mode.

[0097] Embodiments of the present application provide a terminal, including a memory, a transceiver, and a processor.

[0098] The memory is used to store computer programs; the transceiver is used to transceive data under the control of the processor; and the processor is used to read the computer programs in the memory and perform the following operations:

[0099] Obtain the first information and / or the second information provided by the network device.

[0100] Select a target cell according to the first information and / or the second information.

[0101] In some embodiments, the first information includes at least one of the following:

[0102] The network device instructs the terminal to access the satellite auxiliary information;

[0103] The satellite auxiliary information of the satellite providing the same service for the terminal;

[0104] Assistance information of a satellite providing continuous service for the terminal;

[0105] Assistance information of a satellite registered validly by the terminal;

[0106] Assistance information of a satellite which can resume current communication process of the terminal;

[0107] Assistance information of a satellite connecting same ground network element as the current serving satellite;

[0108] And / or,

[0109] The second information comprises at least one of:

[0110] Assistance information of a neighboring cell satellite;

[0111] Assistance information of a serving cell satellite;

[0112] Assistance information of a satellite predicting non-continuous coverage.

[0113] In some embodiments, the processor is configured to read the computer program in the memory and perform the following operations:

[0114] According to the second information, determining the first information;

[0115] According to the first information, selecting a target cell.

[0116] In some embodiments, the processor is configured to read the computer program in the memory and perform the following operations:

[0117] Receiving first association information sent by the network device, and obtaining the first information from the second information according to the first association information;

[0118] Or,

[0119] When it is determined that the network device works in the first network operation mode, determining the first information according to the second information.

[0120] In some embodiments, the terminal obtains the first information and / or the second information provided by the network device, comprising:

[0121] The terminal receives first signaling and / or second signaling sent by the network device; wherein the first signaling carries the first information, and the second signaling carries the second information.

[0122] In some embodiments, the processor is configured to read the computer program in the memory and perform the following operations:

[0123] When a first condition is met, selecting a target cell according to the first information; wherein the first condition comprises at least one of:

[0124] The first information contains auxiliary information of at least one target satellite;

[0125] The terminal acquires first indication information;

[0126] The cell where the terminal acquires the first information is the cell where the terminal last left the connected state;

[0127] The terminal supports a first network operation mode;

[0128] The network architecture of the network device is a first architecture type;

[0129] Within a valid time.

[0130] In some embodiments, the processor is configured to read a computer program in the memory and perform the following operations:

[0131] In the case where a second condition is met, a target cell is selected according to the second information; wherein the second condition includes at least one of the following:

[0132] The first information does not contain auxiliary information of any target satellite;

[0133] The terminal does not acquire first indication information;

[0134] The terminal acquires second indication information;

[0135] Exceeds a valid time;

[0136] Not within a valid time;

[0137] The terminal does not support a first network operation mode;

[0138] The network architecture of the network device is a second architecture type;

[0139] The terminal does not receive indication information indicating a target satellite.

[0140] In some embodiments, the processor is configured to read a computer program in the memory and perform the following operations:

[0141] Determine third information; wherein the third information is used to determine at least one of the following:

[0142] Whether to trigger a connection establishment process of an access layer;

[0143] Send the content of the data packet;

[0144] Send the content of the non-access layer signaling;

[0145] The timer length of the non-access layer;

[0146] Operation mode of non-access stratum timer

[0147] Operation mode of AS.

[0148] In some embodiments, the third information comprises at least one of:

[0149] Satellite identification information of the selected target cell;

[0150] Satellite network architecture information of the selected target cell;

[0151] Satellite operation mode information of the selected target cell;

[0152] Satellite validity time information of the selected target cell;

[0153] Satellite assistance information of the selected target cell.

[0154] In some embodiments, in a case that a target cell is selected according to the second information, or a satellite of the selected target cell does not match a target satellite, the processor is configured to read the computer program in the memory and perform at least one of the following operations:

[0155] The selected target cell does not perform paging message monitoring;

[0156] The selected target cell monitors system information modification notification.

[0157] In some embodiments, in a case that a target cell is selected according to the first information, or a satellite of the selected target cell matches a target satellite, the processor is configured to read the computer program in the memory and perform at least one of the following operations:

[0158] The selected target cell performs paging message monitoring;

[0159] The selected target cell monitors system information modification notification.

[0160] In some embodiments, the processor is configured to read the computer program in the memory and perform the following operation:

[0161] According to the indication information, determine whether to perform a first operation in a target cell; wherein the first operation comprises at least one of the following: a regular access stratum operation, monitoring a paging message, initiating an access procedure.

[0162] In some embodiments, the processor is configured to read the computer program in the memory and perform at least one of the following operations:

[0163] In a case of selecting the first cell, storing the first information provided by the first cell or updating the first information stored by the terminal to the first information provided by the first cell;

[0164] In a case of leaving the connected state from the second cell, storing the first information provided by the second cell or updating the first information stored by the terminal to the first information provided by the second cell;

[0165] Storing or updating the first information based on an indication of high layer signaling;

[0166] After the validity time of the first information stored by the terminal is exceeded, deleting the first information stored by the terminal;

[0167] In a case that the terminal accesses a target satellite, deleting the first information stored by the terminal.

[0168] Embodiments of the present application provide a terminal, comprising:

[0169] An obtaining unit, configured to obtain first information and / or second information provided by a network device;

[0170] A first processing unit, configured to select a target cell according to the first information and / or the second information.

[0171] In some embodiments, the first information comprises at least one of the following:

[0172] Auxiliary information of a satellite indicated by the network device for the terminal to access;

[0173] Auxiliary information of a satellite providing the same service for the terminal;

[0174] Auxiliary information of a satellite providing continuous service for the terminal;

[0175] Auxiliary information of a satellite registered by the terminal;

[0176] Auxiliary information of a satellite capable of resuming a current communication process of the terminal;

[0177] Auxiliary information of a satellite connected to the same ground network unit as a current serving satellite;

[0178] And / or,

[0179] The second information comprises at least one of the following:

[0180] Auxiliary information of a neighbor satellite;

[0181] Auxiliary information of a serving cell satellite;

[0182] Auxiliary information of a predicted non-continuous coverage satellite

[0183] The embodiment of the application provides a network device, comprising a memory, a transceiver and a processor.

[0184] The memory is used for storing a computer program; the transceiver is used for transceiving data under the control of the processor; and the processor is used for reading the computer program in the memory and performing the following operations:

[0185] The first information and / or the second information are provided for the terminal; wherein the first information and / or the second information are used for the terminal to select a target cell.

[0186] In some embodiments, the first information comprises at least one of the following:

[0187] The network device indicates the assistance information of a satellite accessed by the terminal;

[0188] The network device indicates the assistance information of a satellite providing the same service for the terminal;

[0189] The network device indicates the assistance information of a satellite providing continuous service for the terminal;

[0190] The network device indicates the assistance information of a satellite registered by the terminal;

[0191] The network device indicates the assistance information of a satellite capable of recovering the current communication process of the terminal;

[0192] The network device indicates the assistance information of a satellite connected to the same ground network unit as the current service satellite of the terminal;

[0193] And / or,

[0194] The second information comprises at least one of the following:

[0195] The assistance information of a neighboring cell satellite;

[0196] The assistance information of a serving cell satellite;

[0197] The assistance information of a non-continuous coverage satellite.

[0198] In some embodiments, the processor is used for reading the computer program in the memory and performing the following operations:

[0199] The first signaling and / or the second signaling are sent to the terminal; wherein the first signaling carries the first information, and the second signaling carries the second information;

[0200] Or,

[0201] The first association information is sent to the terminal; wherein the first association information is used for obtaining the first information from the second information;

[0202] Or,

[0203] sending second signaling to the terminal; wherein the second signaling carries the second information, and the first information is determined based on the second information when the network device works in the first network operation mode.

[0204] In some embodiments, the processor is configured to read a computer program in the memory and perform at least one of the following operations:

[0205] sending first indication information to the terminal; wherein the first indication information is used to instruct the terminal to select a target cell according to the first information;

[0206] sending second indication information to the terminal; wherein the second indication information is used to instruct the terminal to select a target cell according to the second information;

[0207] The network device works in the first network operation mode.

[0208] Embodiments of the present application provide a network device, comprising:

[0209] a providing unit configured to provide a terminal with first information and / or second information; wherein the first information and / or the second information is used for the terminal to select a target cell.

[0210] In some embodiments, the first information comprises at least one of the following:

[0211] auxiliary information of a satellite indicated by the network device for the terminal to access;

[0212] auxiliary information of a satellite providing the same service for the terminal;

[0213] auxiliary information of a satellite providing continuous service for the terminal;

[0214] auxiliary information of a satellite registered by the terminal;

[0215] auxiliary information of a satellite capable of resuming a current communication process of the terminal;

[0216] auxiliary information of a satellite connected to the same ground network unit as a current serving satellite;

[0217] and / or,

[0218] The second information comprises at least one of the following:

[0219] auxiliary information of a neighboring cell satellite;

[0220] auxiliary information of a serving cell satellite;

[0221] auxiliary information of a satellite predicting non-continuous coverage

[0222] The processor readable storage medium stores a computer program, and the computer program is used for enabling the processor to execute the steps of the information processing method.

[0223] The above technical solution of the present disclosure has the following beneficial effects:

[0224] In the embodiments of the present application, the terminal acquires the first information and / or the second information provided by the network device, so that the terminal can know the satellite assistance information for providing continuous or consecutive or same service or resuming the current communication process for the terminal based on the first information and / or the second information. In the case that the UE may not be able to acquire the assistance information of the satellite for subsequent access indicated by the core network side when selecting the target cell, or the UE may miss the satellite indicated by the core network side due to the mobility of the UE or the satellite, the UE cannot select the target satellite indicated by the core network, and the like, the solution of the UE acquiring the assistance information of the satellite for subsequent access and selecting the target cell and / or measuring based on the different types of satellite assistance information provided by the network is provided. BRIEF DESCRIPTION OF DRAWINGS

[0225] Fig. 1 shows a schematic diagram of signaling and data flow in store-and-forward mode;

[0226] Fig. 2 shows a flowchart of the information processing method on the terminal side according to an embodiment of the present disclosure;

[0227] Fig. 3 shows a flowchart of the information processing method on the network device side according to an embodiment of the present disclosure;

[0228] Fig. 4 shows a block diagram of a terminal according to an embodiment of the present disclosure;

[0229] Fig. 5 shows a block diagram of a terminal according to another embodiment of the present disclosure;

[0230] Fig. 6 shows a block diagram of a network device according to an embodiment of the present disclosure;

[0231] Fig. 7 shows a block diagram of a network device according to another embodiment of the present disclosure. DETAILED DESCRIPTION

[0232] To make the technical problems, technical solutions and advantages of the present disclosure clearer, the following will be described in detail with reference to the drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided only to help a comprehensive understanding of the embodiments of the present disclosure. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. In addition, in order to be clear and concise, the description of known functions and structures is omitted.

[0233] It should be understood that all instances in which terms “one embodiment” or “an embodiment” are preceded by “in” or “wherein” indicate that a specific feature, structure, or characteristic relating to an embodiment is included in at least one embodiment of the disclosure. Therefore, occurrences of “in one embodiment” or “in an embodiment” at various places throughout the specification are not necessarily referring to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0234] In various embodiments of the present disclosure, it should be understood that the size of the serial number of the following processes does not mean the order of execution, and the execution order of the processes should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present disclosure.

[0235] In addition, the terms “system” and “network” are often used interchangeably herein.

[0236] The technical solutions provided by the embodiments of the present application can be applied to various systems. For example, the applicable systems can be global system of mobile communication (GSM) system, code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) general packet radio service (GPRS) system, long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD) system, long term evolution advanced (LTE-A) system, universal mobile system (UMTS), worldwide interoperability for microwave access (WiMAX) system, 5G new radio (NR) system, 6G (sixth generation mobile communication technology) system, etc. Among these various systems, there are terminal and network equipment. The system can also include a core network part, such as an evolved packet system (EPC), a 5G core network (5GC), etc.

[0237] The network device and the terminal can each use one or more antennas for multi-input multi-output (MIMO) transmission, which can be single-user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). According to the shape and number of root antenna combinations, MIMO transmission can be two-dimensional MIMO (2D-MIMO), three-dimensional MIMO (3D-MIMO), full-dimensional MIMO (FD-MIMO), or massive-MIMO, or can be diversity transmission or precoding transmission or beamforming transmission, etc.

[0238] In the embodiments of the present disclosure, the term "and / or" describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the following three cases: A exists alone, A and B exist together, and B exists alone. The character " / " generally represents that the associated objects before and after it are in an "or" relationship.

[0239] In the embodiments of the present application, the term "a plurality of" means two or more, and other quantifiers are similar.

[0240] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present application.

[0241] The following describes the related technologies involved in the present application:

[0242] 1. Non-terrestrial network (NTN) scenario;

[0243] Due to the unique geographical position of the satellite, it has the advantages of wide coverage, easy deployment, stable channel, etc., and can make up for the deficiency of the ground network. The integration of ground network and satellite network has attracted widespread attention. In the satellite network, low-orbit satellites have lower propagation delay and more deployable resources.

[0244] 2. Store-and-forward mode;

[0245] Considering the complexity of the ground environment, the satellite can be in a situation that it cannot connect with the ground station. In the S&F mode, the end-to-end signaling and data flow are completed in two steps, as shown in FIG. 1. In step A, data transmission is performed between the UE and the satellite, and the satellite is not connected with the ground network at the same time (the satellite can operate the service link without the feeder link connection). In step B, the satellite moves to a position where it can be connected with the ground network, and the connection between the satellite and the ground network is established, and the satellite and the ground network can communicate. For example, in step A, the satellite receives data and signaling from the UE and stores the data and signaling on the satellite. In step B, the satellite sends the stored data and signaling to the ground network. Conversely, in some embodiments, the satellite can also receive data and signaling from the ground network that need to be sent to the UE, and send the data and signaling to the terminal in two steps. For example, the satellite receives data and signaling from the ground network that need to be sent to the UE and stores the data and signaling. After the satellite disconnects the ground network and establishes a connection with the UE, the satellite sends the stored data and signaling to the UE.

[0246] The S&F mode supports two cases of partial core network function on satellite and the entire core network function on satellite at the same time on the base station. Before / when the UE leaves the current cell connection, the satellite provides the satellite ID information to the UE through the non-access layer (NAS) signaling, and informs the UE of the subsequent access to the corresponding satellite to obtain subsequent services.

[0247] 3. Satellite assistance information

[0248] The assistance information of the network broadcast service cell and the neighboring satellite, such as ephemeris information, ephemeris information validity time, common timing advance (TA-common) information applied to obtain uplink synchronization, and the like, is supported. Based on the assistance information of the network broadcast service cell and the neighboring satellite, the UE can trigger the neighboring cell measurement to be started, and perform the corresponding neighboring cell measurement. In the narrowband Internet of Things (NB-IoT) NTN scenario, considering that the satellite can not continuously provide coverage for the same geographical location, the assistance information of the satellite for non-continuous coverage broadcast is supported, and the UE can determine the time when the satellite provides services based on the assistance information, so as to start the corresponding measurement.

[0249] 4. Cell selection and cell reselection

[0250] 1) Cell selection

[0251] The UE selects a cell that meets the signal quality condition as soon as possible under a selected public land mobile network (PLMN). For initial selection, the UE scans all frequency bands, searches for a cell with the best signal quality on each frequency band, and selects and camps on the cell as soon as a suitable cell that meets the S criterion is found; if the UE stores information about cell selection, the UE preferentially selects a cell for which relevant information is stored for measurement, camps on the cell if a suitable cell is found, or initiates initial selection otherwise. Cell selection is based on the S criterion.

[0252] 2) Cell reselection:

[0253] Cell reselection refers to the UE camping on a cell with better signal quality or higher priority through cell reselection. Cell reselection includes the following three steps:

[0254] The UE first determines the frequency priority according to the priority processing criterion;

[0255] The UE determines the frequency to be measured according to the determined priority and the measurement rule;

[0256] The UE performs search and measurement, sorts according to the R criterion, and selects a cell to camp on.

[0257] The UE performs cell reselection measurement based on the neighbor cell information broadcast in system information or the dedicated cell reselection-related information provided by dedicated signaling to perform the cell reselection process. In a satellite scenario, the UE performs the cell reselection process on the corresponding frequency point based on the intra-frequency or inter-frequency neighbor cell information broadcast in system information and in combination with the assistance information of one or more associated satellites.

[0258] Embodiments of the present application provide an information processing method, a terminal, a network device, and a processor-readable storage medium, which solve the problem that there is no solution for how a UE acquires assistance information of a satellite for subsequent access and how to perform target cell selection and / or measurement based on assistance information of different types of satellites provided by a network. The method and the device are based on the same application concept, and since the principles of solving the problems are similar, the implementation of the device and the method can be mutually referred to, and the repeated parts will not be described again.

[0259] As shown in FIG. 2, embodiments of the present disclosure provide an information processing method, including the following steps:

[0260] Step 21: The terminal acquires first information and / or second information provided by the network device;

[0261] In some embodiments, the first information and / or the second information can comprise satellite assistance information, wherein the first information and / or the second information can be distinguished based on the indication information or the first association information, or the first information and / or the second information can be a separate satellite assistance information list, or, in different scenarios, the satellite assistance information is determined as the first information or the second information, for example: the satellite assistance information list 1 is specified by the protocol, in some embodiments, the first information and / or the second information can be indicated for each PLMN or indicated for each core network or each ground network unit or each service type, and the embodiments of the present application are not limited thereto.

[0262] In some embodiments, the first information comprises at least one of the following:

[0263] The network device indicates the assistance information of the satellite accessed by the terminal; for example: when the terminal is in the connected state, the network device informs the UE of the assistance information of the satellite that can be accessed after leaving the current connected state.

[0264] The assistance information of the satellite providing the same service for the terminal; for example: after leaving the coverage of the current cell or satellite, the UE can receive the assistance information of the satellite providing the same service as the current cell or satellite. The current cell or satellite is the cell or satellite from which the terminal obtains the first information.

[0265] The assistance information of the satellite providing continuous service for the terminal; for example: after leaving the coverage of the current cell or satellite, the UE can continue to receive the assistance information of the satellite providing the same or continuous service as the current cell or satellite. The current cell or satellite is the cell or satellite from which the terminal obtains the first information.

[0266] The assistance information of the satellite registered validly by the terminal; for example: when the current cell or satellite is initiating or has initiated a registration process or does not need to initiate a registration process, after the UE leaves the current cell or satellite, the assistance information of the satellite can be considered as the current cell registration process being valid, or the ongoing registration process being still valid, or the registration process not needing to be initiated again.

[0267] The assistance information of the satellite capable of resuming the current communication process of the terminal; for example: the current communication process can include but is not limited to: a registration process, a data transmission process, etc.

[0268] The assistance information of the satellite connected to the same ground network unit as the currently serving satellite; for example: the currently serving satellite is the satellite from which the first information is obtained, and the satellite with which the currently serving satellite can establish a connection, for example: a feeder link, with the same ground network unit.

[0269] In some embodiments, the second information comprises at least one of the following:

[0270] The assistance information of the neighboring satellite;

[0271] The assistance information of the serving cell satellite;

[0272] The assistance information of the predicted non-continuous coverage satellite.

[0273] It should be noted that the first information and the second information acquired by the terminal can be acquired from the same network device, or can be acquired from different network devices. For example, the UE acquires the first information from the network device acquiring the second information, or the UE acquires the first information from the previously serving network device before acquiring the second information, and vice versa. In some embodiments, the first information can be provided by the satellite connected by the terminal before the current serving satellite, or can be broadcast by the currently camped cell; and the second information can be provided by the currently camped cell.

[0274] Step 22: The terminal selects a target cell according to the first information and / or the second information.

[0275] In some embodiments, the selection of the target cell includes, but is not limited to, at least one of the following: selection of the target cell, cell reselection, cell selection, neighbor cell measurement, AS operation in RRC idle state or RRC inactive state, etc. For example, the cell selection or cell reselection is performed according to the first information and / or the second information, the trigger timing or measurement object of the neighbor cell measurement is determined, or it is determined whether to perform the AS operation in the RRC idle state or the RRC inactive state, etc. The behaviors related to the selection of the target cell can be included.

[0276] For example, the terminal can select the target cell according to the first information, or the terminal can select the target cell according to the second information, or the terminal preferentially selects the target cell according to the first information, and further selects the target cell according to the second information in the case that the selection of the target cell according to the first information is not satisfied, etc. The embodiments of the present application are not limited thereto.

[0277] In the embodiments of the present application, the terminal acquires the first information and / or the second information provided by the network device, so that the terminal can acquire the satellite assistance information for providing continuous or consecutive or same service or resuming the current communication process based on the first information and / or the second information. In the case that the UE cannot acquire the assistance information of the satellite for subsequent access indicated by the core network side when selecting the target cell for the UE, or the UE misses the satellite indicated by the core network side due to the mobility of the UE or the satellite, the UE cannot select the target satellite indicated by the core network, etc., the solution for the UE to acquire the assistance information of the satellite for subsequent access and the target cell selection and / or measurement based on the different types of satellite assistance information provided by the network is provided.

[0278] In some embodiments, the terminal selects a target cell according to the second information, including:

[0279] The terminal determines the first information according to the second information.

[0280] The terminal selects a target cell according to the first information.

[0281] For example, in the case that the second information includes at least one of the following: assistance information of a neighboring satellite, assistance information of a serving satellite, and assistance information of a predicted non-continuous coverage satellite. The terminal can obtain the first information from the second information or determine that the second information is the first information. That is, the terminal can determine the first information according to the second information, and the first information can include at least one of the following: assistance information of a satellite indicated by the network device for the terminal to access, assistance information of a satellite providing the same service for the terminal, assistance information of a satellite providing continuous service for the terminal, assistance information of a satellite in which the terminal is registered, assistance information of a satellite that can recover the current communication process of the terminal, and assistance information of a satellite connected to the same ground network unit as the current serving satellite.

[0282] In some embodiments, the terminal obtains the first information provided by the network device, including:

[0283] The terminal receives first signaling sent by the network device, wherein the first signaling carries the first information. For example, the first signaling can be sent by the currently camped cell, or the first signaling can be provided by a satellite previously connected to the current serving satellite. The first information is directly sent to the UE through the first signaling. A possible implementation is that the first signaling is system information or a system information block broadcasted by the network, or dedicated RRC signaling. Here, the first information and the second information are sent to the UE through the same or different signaling. If they are sent through the same signaling, the first information and the second information can be carried through different information fields.

[0284] In some embodiments, the terminal obtains the first information provided by the network device (i.e., the terminal determines the first information according to the second information), including:

[0285] The terminal receives first association information sent by the network device, and obtains the first information from the second information according to the first association information. For example, the first association information can be sent by the current camped cell, or the first association information can be provided by the satellite connected before the current serving satellite. In some embodiments, the first association information and the second information can be provided by the same network device, or can be provided by different network devices. For example, the first association information can be identification information or index information or bitmap, and the first association information and the second information are provided by the same network device. For example, the second information is a list containing multiple satellite assistance information, or a list arranged in order according to satellite identification information (for example: 8). The first association information can be one or more index information or identification information or bitmap, for example: 0, 1, 5 correspond to the first, second, and sixth satellite assistance information in the second information list, or the first association information is 11000100, corresponding to the first, second, and sixth satellite assistance information, and the first information is the assistance information of the first, second, and sixth satellites in the second information. For another example, the first association information can be a global variable (for example: satellite ID), and the first association information and the second information can be sent by the same network device or different network devices. For example, the first association information is satellite ID 8 and 10, and the first information is the assistance information of the satellites with satellite ID 8 and 10 in the second information. Or the first association information can also be used to indicate that the entire second information (i.e. all assistance information in the second information) is used as the first information, etc. For example, the first association information is an indication information, and the network device provides at least one of the assistance information of the neighboring satellite, the assistance information of the serving cell satellite, and the assistance information of the predicted non-continuous coverage satellite (for convenience, the following is referred to as second assistance information). For example, when the indication information appears or takes a preset value one, it is confirmed that the second assistance information is used as the first information. In some embodiments, at this time, the second assistance information can also be used as the second information, i.e. used for the first information and the second information. For another example, when the first association information does not appear, or the first association information appears and takes a preset value two, it is confirmed that the second assistance information is used as the second information. For example, the second assistance information is satellite assistance information for non-continuous coverage prediction. When the first association information appears, or takes a preset value one, the satellite assistance information for non-continuous coverage prediction is used as the first information, for example, to notify the UE to provide satellite assistance information for continuous or continuous or same service or to recover the current communication process (at this time, the information can be used only as the first information, or can be used as the first information and the second information, i.e. used for non-continuous coverage prediction satellite assistance information and satellite assistance information for continuous or continuous or same service or to recover the current communication process).In some embodiments, the first association indication information can further indicate, according to different values or presence or absence, that the second auxiliary information is used only as the first information, or only as the second information, or as both the first information and the second information, which will not be repeated; the first association information and the second information can be provided by different network elements or by the same network element, for example, the first association information and the second information are provided by the same or different radio access network devices, or the first association information is provided by a core network element and the second information is provided by a radio access network device, etc., and the embodiments of the present application are not limited thereto.

[0286] Or,

[0287] When the terminal determines that the network device works in the first network operation mode, the terminal determines the first information according to the second information (for example, confirms that the second information is the first information). For example, the first network operation mode can be the S&F mode. When the terminal determines that the network device works in the S&F mode, the second auxiliary information originally used as the second information can be determined as the first information. That is, when the network device works in the S&F mode, the terminal determines that the first information is obtained. When the network device does not work in the S&F mode, for example, in the normal mode or in the mode that can establish a connection with the ground core network, the second auxiliary information can be used as the second information, for example, the satellite auxiliary information used for discontinuous coverage prediction. That is, the second auxiliary information provided by the same signaling is used differently when the network works in different network operation modes, for example, can be used as the use of the second information or the use of the first information, and for example, can be used as the use of the second information or the use of the second information and the use of the first information.

[0288] In some embodiments, the terminal obtains the first information and / or the second information provided by the network device, including:

[0289] The terminal receives the first signaling and / or the second signaling sent by the network device; wherein the first signaling carries the first information, and the second signaling carries the second information.

[0290] For example, the first signaling and the second signaling can be different messages, such as the first signaling and the second signaling can be two messages respectively sent by different network devices, or two messages respectively sent by the same network device; or the first signaling and the second signaling can be different information fields in the same message, such as a first information field in the same message can carry the first information, and a second information field in the message can carry the second information, etc. The first signaling and the second signaling can be different information fields in different messages, such as a first information field in a first message can carry the first information, and a second information field in a second message can carry the second information, etc. The embodiments of the present application are not limited thereto.

[0291] In some embodiments, the terminal selects a target cell according to the first information, including:

[0292] In the case of satisfying the first condition, the terminal selects a target cell according to the first information; wherein the first condition includes at least one of the following:

[0293] The first information contains assistance information of at least one target satellite. For example, the target satellite can be indicated to the terminal by the network device, such as the UE obtaining the target satellite (the network device indicating the target satellite and the network device providing the first information and / or the second information can be the same network device or different network devices) from the network device through access layer (Access Stratum, AS) signaling or non-access layer (Non-Access Stratum, NAS) signaling; or the target satellite can also be provided to the terminal AS by the NAS of the terminal, such as the UE obtaining the target satellite from the core network side, and the NAS of the UE directly providing the indication information of the target satellite to the AS of the UE, or possibly providing some inferred results to the AS of the UE, etc. The embodiments of the present application are not limited thereto.

[0294] The terminal obtains the first indication information, for example, the terminal receives the first indication information from the network device side, or the terminal receives the first indication information sent by the network side non-access layer protocol, and then the non-access layer of the terminal delivers the first indication information to the access layer, that is, the terminal access layer receives the first indication information from the non-access layer; for example, the non-access layer of the terminal provides the first indication information to the access layer of the terminal, one implementation manner can be that the non-access layer of the terminal directly provides the first indication information obtained from the core network side to the access layer of the terminal, and another implementation manner can be that the non-access layer of the terminal infers part of the first indication information that needs to be notified to the access layer of the terminal according to the information obtained from the core network side, that is, the first indication information obtained by the access layer of the terminal from the non-access layer of the terminal is not the first indication information directly provided by the core network side. For example, in the case that the terminal receives the first indication information from the network device, the first indication information can be the indication information sent by the directly connected network device, the first information can be provided by the same network device as the first indication information, and the first information can be obtained by the terminal on each newly camped network device. For example, the terminal obtains the first indication information (for example, the indication information of the target satellite, such as satellite ID 5) in cell 1, cell 1 does not broadcast the assistance information of satellite ID 5, and the terminal can camp on a new cell according to the normal principle, for example, performs target cell selection and / or measurement according to the second information (for example, camps on cell 2), if the assistance information of satellite ID 5 is broadcast in cell 2, the terminal can perform target cell selection and / or measurement according to the assistance information of satellite ID 5, that is, the terminal obtains the first information in cell 2, and obtains the first indication information in cell 1.

[0295] The cell from which the terminal obtains the first information is the cell from which the terminal last left the connected state; for example, cell 1 provides the first information by broadcasting or dedicated signaling, UE 1 initiates a connection establishment process in cell 1 and enters the connected state, then UE 1 performs target cell selection and / or measurement according to the first information provided by cell 1, and UE 2 does not initiate a connection establishment process in cell 1, then UE 2 does not need to perform target cell selection and / or measurement according to the first information provided by cell 1.

[0296] The terminal supports the first network operation mode; for example, the first network operation mode can be the S&F mode.

[0297] The network architecture of the network device is the first architecture type; for example, the first architecture type can refer to the deployment type of the core network of the satellite as the first architecture type, for example, the first architecture type can refer to the deployment of part of the core network on the satellite or the separation of the core network architecture.

[0298] In the valid time; for example, if the first condition includes that the terminal access layer receives the first indication information from the non-access layer and is in the valid time, the valid time refers to the valid time of the first indication information; if the first condition includes that the terminal receives the first indication information from the network device and is in the valid time, the valid time refers to the valid time of the first indication information; for another example, the valid time can also refer to the valid time of the first information, or the valid time of the target satellite indicated by the network device or the terminal NAS, or the duration after leaving the connected state, and the present application embodiments are not limited thereto.

[0299] In some embodiments, the first indication information is used to indicate at least one of:

[0300] Selecting a target cell and / or measurement according to the first information;

[0301] Not allowing to select a target cell and / or measurement according to the second information;

[0302] Performing cell selection and / or measurement according to the first network operation mode; for example, the first network operation mode is the S&F mode.

[0303] Performing cell selection and / or measurement according to the first architecture type; for example, the first architecture type is the S&F mode separated core network architecture.

[0304] Target satellite; that is, the first indication information is the indication information of the target satellite.

[0305] Performing normal idle state or inactive state AS operation.

[0306] In some embodiments, the terminal selects a target cell according to the second information, including:

[0307] In the case of satisfying the second condition, the terminal selects a target cell according to the second information; wherein the second condition includes at least one of:

[0308] The first information does not contain the assistance information of any one target satellite; for example, the target satellite can be indicated by the network device to the terminal, or the target satellite can be transmitted by the NAS of the terminal to the AS, and the present application embodiments are not limited thereto. When the first information does not contain the assistance information of any one UE indicated target satellite, or the UE does not obtain the first information, the UE selects a target cell and / or measurement according to the second information.

[0309] The terminal does not obtain the first indication information; for example, the terminal access layer does not receive the first indication information from the non-access layer, or the terminal does not receive the first indication information from the network device;

[0310] The terminal obtains the second indication information, for example, the terminal receives the second indication information from the network device, or the terminal NAS receives the second indication information sent by the network side NAS, and then the terminal NAS delivers the second indication information to the access layer, that is, the terminal access layer receives the second indication information from the terminal NAS. For example, the terminal NAS provides the second indication information to the terminal access layer. One implementation manner can be that the terminal NAS directly provides the second indication information obtained from the core network side to the terminal access layer. Another implementation manner can be that the terminal NAS infers part of the second indication information that needs to be notified to the terminal access layer according to the information obtained from the core network side, that is, the second indication information obtained by the terminal access layer from the terminal NAS is not the second indication information directly provided by the core network side. For example, the second information can be provided by the same network device as the second indication information, or can be provided by different network devices.

[0311] Exceeding the valid time;

[0312] Not within the valid time; for example, the valid time can refer to the valid time of the first indication information, that is, exceeding the valid time of the first indication information or not within the valid time of the first indication information, that is, satisfying the second condition; or the valid time can refer to the valid time of the first information, or the valid time of the target satellite indicated by the network device or the terminal NAS, or exceeding a duration after leaving the connected state, etc. The embodiments of the present application are not limited thereto.

[0313] The terminal does not support the first network operation mode; for example, the first network operation mode can be the S&F mode.

[0314] The network architecture of the network device is a second architecture type; for example, the second architecture type can refer to the deployment type of the core network of the satellite being the second architecture type, and the deployment type of the core network corresponding to the first architecture type and the second architecture type is different, for example: the second architecture type can refer to the deployment of all core networks on the satellite.

[0315] The terminal does not receive the indication information for indicating the target satellite.

[0316] In some embodiments, the second condition can also include being within the valid time of the second indication information, or being within the valid time of the second information, etc. The embodiments of the present application are not limited thereto.

[0317] In some embodiments, the second indication information is used to indicate at least one of the following:

[0318] Selecting a target cell and / or measurement according to the second information;

[0319] not to select a target cell and / or to perform measurement according to the first information;

[0320] to perform cell selection and / or measurement according to a non-first network operation mode; for example, the first network operation mode is S&F mode.

[0321] to perform cell selection and / or measurement according to a second architecture type; for example, the second architecture type is S&F mode all core network star architecture.

[0322] to perform normal or abnormal idle state or inactive state AS operation;

[0323] For example, the terminal can select a target cell and / or perform measurement according to the first information when the first condition is met. Alternatively, the terminal can select a target cell and / or perform measurement according to the second information when the second condition is met. Alternatively, the terminal can select a target cell and / or perform measurement according to the first information when the first condition is met, and select a target cell and / or perform measurement according to the second information when the first condition is not met (or the second condition is met).

[0324] In some embodiments, after the terminal selects a target cell according to the first information and / or the second information, the terminal further comprises:

[0325] The terminal determines third information, for example, the terminal determines third information;

[0326] The third information is used to determine (or the third information is used for the non-access layer of the terminal to determine) at least one of the following:

[0327] whether to trigger an access layer connection establishment process;

[0328] the content of a data packet to be sent;

[0329] the content of non-access layer signaling to be sent;

[0330] the length of a non-access layer timer;

[0331] the running mode of a non-access layer timer;

[0332] the operation mode of an AS.

[0333] For example, after the terminal selects a target cell, the AS layer feeds back third information to the non-access layer, which is used for the non-access layer to determine whether to trigger an access layer connection establishment process, or to determine the content of a data packet to be sent, the content of non-access layer signaling to be sent, or to determine the length of a non-access layer timer, the running mode of a timer, for example, whether to start immediately or delay, or to determine whether the AS layer performs normal or abnormal idle state / inactive state AS operation, etc. The embodiments of the present application are not limited thereto.

[0334] In some embodiments, the third information comprises at least one of:

[0335] satellite identification information of the selected target cell;

[0336] satellite network architecture information of the selected target cell; for example, the network architecture information comprises but is not limited to: indication information for indicating partial core network on satellite, indication information for indicating full core network on satellite, or core network network element information on satellite (for example: Mobility Management Entity (MME)), or indication information for indicating whether there is core network on satellite, etc., without being limited thereto in the embodiments of the present application.

[0337] satellite working mode information of the selected target cell; for example, the working mode information can comprise but is not limited to: indication information for indicating whether the working mode of the target cell or satellite is S&F mode, or indication information for indicating whether the working mode of the target cell or satellite is normal mode, etc., without being limited thereto in the embodiments of the present application.

[0338] satellite valid time information of the selected target cell; for example, the valid time information can be the valid time (such as information of end time of satellite providing coverage or service) that the satellite of the selected target cell can provide service for the UE, or the valid time that the satellite can provide coverage or service for the UE according to ephemeris information, reference point information and UE position calculation, etc., without being limited thereto in the embodiments of the present application.

[0339] satellite auxiliary information of the selected target cell.

[0340] In some embodiments, in the case that the target cell is selected according to the second information, or the satellite of the selected target cell does not match the target satellite, the method further comprises at least one of:

[0341] the terminal does not perform paging message listening in the selected target cell;

[0342] the terminal listens to system information modification notification in the selected target cell.

[0343] For example, the paging message monitoring includes a paging message triggered based on a UE identifier allocated by the core network side, or a paging message triggered based on an identifier allocated by the RAN side. The terminal does not monitor the paging message of the core network and / or does not monitor the paging message of the RAN side, or the terminal monitors the paging message in a specified manner, such as a default DRX cycle provided by system information, and the like, which is not limited in the embodiments of the present application. Considering that the target cell selected by the second information may not trigger the paging process of the network side, for example, CN paging or RAN paging, a possible scenario is that the target cell does not page the terminal because the selected target cell is not a cell providing services by the satellite designated by the network side for the UE to access, so that the terminal does not perform paging message monitoring in the selected target cell, which can reduce the power consumption of the terminal. In order to ensure that the UE can actively initiate an access process, a possible scenario is that the UE can actively initiate an access process in the selected target cell when the UE loses the coverage of one or all satellites designated by the network side, so that the UE needs to monitor the system information modification notification in the selected target cell to update the system information of the target cell, so that the terminal can initiate an access process in the selected target cell.

[0344] In some embodiments, in the case of selecting a target cell according to the first information, or the satellite of the target cell matches the target satellite, the method further includes at least one of the following:

[0345] The terminal performs paging message monitoring in the selected target cell;

[0346] The terminal monitors the system information modification notification in the selected target cell.

[0347] For example, the paging message monitoring includes a paging message triggered based on a UE identifier allocated by a core network side or a paging message triggered based on an identifier allocated by a radio access network (RAN) side. The terminal monitors a paging message of the core network and / or monitors a paging message of the RAN side, and the terminal monitors the paging message in a conventional manner, for example, the UE monitors the paging according to a period T, where T is the minimum value in T-CN (if the UE has), T-RAN (if the UE has), and T-default. T-CN is a UE-specific discontinuous reception (DRX) period provided by a higher layer, T-RAN is a UE specific DRX period provided by RRC, and T-default is a default DRX period provided by system information, and the embodiments of the present application are not limited thereto. Considering that the target cell selected by the terminal is a satellite service cell specified by the network side, the network side can trigger a paging process in the target cell, and the UE can also initiate an access process in the target cell, so the UE needs to monitor the paging message process and monitor the system information update notification to ensure that the terminal can initiate the access process in the target cell due to a call (based on the network side paging message) or a call.

[0348] In some embodiments, the information processing method further includes:

[0349] The terminal determines whether to perform a first operation in the target cell according to the indication information, for example, the terminal access layer determines whether to perform a first operation in the target cell according to the indication information of the non-access layer.

[0350] The first operation includes at least one of a conventional access layer operation, monitoring a paging message, and initiating an access process.

[0351] For example, the indication information of the non-access layer can be provided to the AS layer separately for each satellite, or can be configured for one or more satellites, and the embodiments of the present application are not limited thereto. In some embodiments, the indication information is provided to the AS layer by the NAS after the UE selects the target cell each time, or is provided to the AS layer by the NAS layer, and is used by the AS to determine the first operation after selecting the target cell subsequently. The conventional access layer operation can be a conventional access layer operation of the UE in an RRC idle state or an RRC inactive state, and at least includes one of monitoring a CN paging, monitoring a RAN paging, performing a neighbor cell measurement and cell reselection or selection, acquiring system information, and monitoring a CN paging for MBS. The monitoring of the paging message includes a paging message triggered based on a UE identifier allocated by a core network side or a paging message triggered based on an identifier allocated by a radio access network (RAN) side.

[0352] In some embodiments, the non-access layer of the terminal is informed by the access layer of the terminal when the serving time of the target cell ends or the target satellite indicated by the higher layer no longer provides service.

[0353] In some embodiments, the information processing method further comprises at least one of the following:

[0354] When the terminal selects the first cell (i.e., the target cell is the first cell), the first information provided by the first cell is stored or the first information already stored by the terminal is updated to the first information provided by the first cell;

[0355] When the terminal leaves the connected state from the second cell, the first information provided by the second cell is stored or the first information already stored by the terminal is updated to the first information provided by the second cell;

[0356] The terminal stores or updates the first information based on the indication of the higher layer signaling;

[0357] The terminal deletes (or releases) the first information stored by the terminal after the validity time of the first information stored by the terminal is exceeded;

[0358] The first information stored by the terminal is deleted (or released) when the terminal accesses the target satellite; for example, the target satellite can be indicated by the network device side or transmitted to the AS by the NAS of the terminal, i.e., when the UE is served by the designated target satellite, if the UE accesses the target satellite, the first information stored by the terminal can be deleted (or released).

[0359] The terminal referred to in the embodiments of the present application can be a device providing voice and / or data connectivity to users, a handheld device with wireless connection function, or other processing devices connected to a wireless modem, etc. In different systems, the name of the terminal can also be different, for example, in the 5G system, the terminal can be called user equipment (UE). The wireless terminal can communicate with one or more core networks (CN) through a RAN, and the wireless terminal can be a mobile terminal, such as a mobile phone (or called "cellular" phone) and a computer with a mobile terminal, for example, it can be a portable, pocket, handheld, built-in computer or vehicle-mounted mobile device, which exchanges language and / or data with the wireless access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), etc. The wireless terminal can also be called a system, a subscriber unit, a subscriber station, a mobile station, a mobile, a remote station, an access point, a remote terminal, an access terminal, a user terminal, a user agent, a user device, which is not limited in the embodiments of the present application.

[0360] As shown in FIG. 3, the embodiments of the present disclosure provide an information processing method, comprising the following steps:

[0361] Step 31: The network device provides the first information and / or the second information for the terminal; wherein the first information and / or the second information is used for the terminal to select a target cell.

[0362] In some embodiments, the first information comprises at least one of the following:

[0363] The network device indicates the assistance information of the satellite accessed by the terminal;

[0364] The assistance information of the satellite providing the same service for the terminal;

[0365] The assistance information of the satellite providing continuous service for the terminal;

[0366] assistance information of a satellite registered valid for the terminal;

[0367] assistance information of a satellite which can resume the current communication process of the terminal;

[0368] assistance information of a satellite which connects the same ground network element as the satellite currently serving the terminal;

[0369] and / or,

[0370] the second information comprises at least one of:

[0371] assistance information of a neighboring satellite;

[0372] assistance information of a serving cell satellite;

[0373] assistance information of a satellite which predicts discontinuous coverage.

[0374] In some embodiments, the network device provides the first information and / or the second information for the terminal, comprising:

[0375] the network device sends first signaling and / or second signaling to the terminal; wherein the first signaling carries the first information, and the second signaling carries the second information;

[0376] or,

[0377] the network device sends first association information to the terminal; wherein the first association information is used to obtain the first information from the second information;

[0378] or,

[0379] the network device sends second signaling to the terminal; wherein the second signaling carries the second information, and the first information is determined based on the second information when the network device works in the first network operation mode (i.e. the second information is the first information). For example, the network device can send second signaling carrying the second information to the terminal, and the terminal can take the second information as the first information to perform target cell selection and / or measurement when it is determined that the network device works in the first network operation mode; or the network device can send second assistance information (such as assistance information of a neighboring satellite, assistance information of a serving cell satellite, assistance information of a satellite which predicts discontinuous coverage, etc.) to the terminal. The terminal takes the second assistance information as the first information when it is determined that the network device works in the first network operation mode, or takes the second assistance information as the second information when it is determined that the network device works in the normal mode, or in a mode that can establish a connection with the ground core network, etc. For details, please refer to the above terminal-side embodiments, which will not be described here.

[0380] In some embodiments, the information processing method further comprises at least one of the following:

[0381] The network device sends first indication information to the terminal; wherein the first indication information is used to instruct the terminal to select a target cell according to the first information;

[0382] The network device sends second indication information to the terminal; wherein the second indication information is used to instruct the terminal to select a target cell according to the second information;

[0383] The network device works in a first network operation mode.

[0384] It should be noted that the information processing method of the network side device in the embodiments of the present application and the information processing method of the terminal side described above are based on the same inventive concept, the embodiments of the two can be referred to each other, and the same technical effects can be achieved. To avoid repetition, it will not be described here.

[0385] The network device related to the embodiments of the present application can be a base station, which can include multiple cells serving terminals. According to different application scenarios, the base station can also be referred to as an access point, or can be a device in an access network that communicates with wireless terminal devices through one or more sectors over an air interface, or other names. The network device can be used to exchange received air frames and Internet Protocol (IP) packets as a router between the wireless terminal device and the rest of the access network, which can include an Internet Protocol (IP) communication network. The network device can also coordinate the management of the properties of the air interface. For example, the network device related to the embodiments of the present application can be a network device (Base Transceiver Station, BTS) in the Global System for Mobile Communications (GSM) or Code Division Multiple Access (CDMA), or a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or an evolved network device (evolutional Node B, eNB or e-NodeB) in a long term evolution (LTE) system, or a 5G base station (gNB) in a 5th Generation mobile communication technology (5G) network architecture (next generation system), or a Home evolved Node B (HeNB), a relay node, a femto, a pico, etc. The embodiments of the present application are not limited. In some network structures, the network device can include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit can also be arranged geographically apart.

[0386] The information processing method of the present application is described below in combination with specific embodiments:

[0387] Embodiment one: a manner in which the network device provides first information.

[0388] Step 1: the UE accesses the target network through cell 1 (cell1) or resides in cell 1, and cell 1 provides services through satellite 1 (sat1).

[0389] Step 2: cell1 broadcasts the second information through system information; in some embodiments, the second information comprises at least one of:

[0390] auxiliary information of neighboring satellites;

[0391] auxiliary information of serving cell satellites;

[0392] auxiliary information of predicted non-continuous coverage satellites.

[0393] For example, the second information can comprise auxiliary information of sat1, sat2, sat3, sat4.

[0394] Step 3-1: cell1 broadcasts the first information through system information.

[0395] In some embodiments, the first information comprises at least one of:

[0396] auxiliary information of satellites that the network device instructs the terminal to access;

[0397] auxiliary information of satellites that provide the same service for the terminal;

[0398] auxiliary information of satellites that provide continuous service for the terminal;

[0399] auxiliary information of satellites that the terminal is registered with;

[0400] auxiliary information of satellites that can resume the current communication process of the terminal;

[0401] auxiliary information of satellites that connect the same ground network element as the current serving satellite

[0402] For example, the first information can comprise auxiliary information of sat5, sat6, sat7. Based on implementation, sat5, sat6, sat7 can be satellites that connect the same ground network as the current satellite. Wherein, cell1 can broadcast the first information according to different service types or core network types, for example: for PLMN1, auxiliary information of sat5, sat6 is provided, for PLMN2, auxiliary information of sat7 is provided. Or for service type 1, auxiliary information of sat5, sat6 is provided, for service type 2, auxiliary information of sat7 is provided. Specifically, the notification mode of the first information can be one or more of the following:

[0403] define a separate list carrying satellite auxiliary information, which is distinguished from the second information;

[0404] The first associated information is indicated by, for example, introducing the first associated information, obtaining the first information from the second information according to the first associated information, or confirming that the second information is the first information; for example, defining a bitmap to determine the first information from the second information, such as one-to-one correspondence between each bit in the bitmap and the satellite in the second information, and the indication information of the corresponding 1 bit; or, defining an indication information, and confirming whether the second information is the first information (or confirming whether the second auxiliary information is used as the first information or the second information) according to the presence or value of the indication information, for example: when the indication information appears, it is confirmed that the second information is the first information, or the second auxiliary information is used as the first information; for another example: when the indication information does not appear, it is confirmed that the second information still functions as the second information, or the second auxiliary information is used as the second information, that is, assuming that the network sends the second auxiliary information through signaling, the UE can confirm whether the second auxiliary information is the second information or the first information, or the second auxiliary information is the first information and the second information, or the second information, or the second auxiliary information is the first information, the second information, or the first information and the second information, based on the value or presence of the first indication information; or, introducing an indication information for the auxiliary information of each satellite contained in the second information, and determining whether the auxiliary information of each satellite is the satellite auxiliary information in the first information according to the indication information; or, introducing one or more index information, corresponding to each auxiliary information in the second information, the satellite auxiliary information associated with the index information is the auxiliary information in the first information; or, introducing a satellite ID list, the satellite auxiliary information of the satellite carried by the second information is the satellite auxiliary information of the satellite with the same satellite ID in the list.

[0405] Specifically, the above first associated information indicates one or more of the following contents, so as to determine whether it belongs to the first information:

[0406] The first associated information indicates whether the satellite provides the same service as the current satellite.

[0407] The first associated information indicates whether the satellite is connected to the same ground network as the current satellite.

[0408] Indicating that the UE accessing the current satellite or cell will take the satellite indicated by the first associated information as the target satellite in the future, or the satellite indicated by the first associated information has a high priority in the subsequent target cell selection.

[0409] When the UE selects a cell of the satellite indicated by the first associated information, the UE needs to perform the UE AS behavior in the non-connected state in the normal mode (e.g., listening to a paging message, reading system information, listening to a system information update notification, or cell reselection, etc.), or can perform partial NTN AS behavior or does not perform NTN AS behavior (e.g., does not listen to a paging message); wherein the non-connected state can be a radio resource control (RRC) idle state or an RRC inactive state.

[0410] When the UE camps on the satellite indicated by the first associated information, the AS layer needs to feed back part of the relevant information of the satellite indicated by the first associated information to the NAS layer, for example: satellite ID, satellite service time, etc.

[0411] It is indicated that the UE initiates access on the satellite indicated by the first associated information.

[0412] It is indicated that the UE listens to the paging message on the satellite indicated by the first associated information.

[0413] Among the first information, the auxiliary information includes at least one of the following:

[0414] Satellite identification information;

[0415] Satellite service start time information;

[0416] Satellite service duration;

[0417] Ephemeris information;

[0418] TA common;

[0419] Ephemeris information valid time and corresponding start timestamp;

[0420] Reference location information and / or corresponding timestamp;

[0421] Service frequency point information, which can include one or more frequency points;

[0422] Cell identification information; for example: physical cell identifier (PCI), which can be provided for each frequency point;

[0423] One or more associated core network information, for example: PLMN;

[0424] One or more associated service type information.

[0425] Step 3-2: For the UE accessing cell1, cell1 provides the first information, such as the assistance information of sat5, sat6, and sat7, through dedicated signaling. For details, refer to step 3-1. The dedicated signaling can be AS layer RRC signaling, NAS signaling, or the like, and the application is not limited in this regard.

[0426] The application can support either of step 3-1 or step 3-2, or both.

[0427] Embodiment 2: How does the UE select satellite assistance information.

[0428] Embodiment 2-1: Select satellite assistance information based on indication

[0429] Step 1: The UE currently resides in or accesses cell1, and cell1 provides services through sat1.

[0430] Step 2: The UE obtains the first assistance information of the target satellite (i.e., the network side indicates the target satellite) through cell1 or the previously camped cell or the previously accessed cell, for subsequent selection of the target cell or indication of the UE's AS behavior on the corresponding target satellite.

[0431] In some embodiments, the UE can obtain the first information from cell1 or the previously camped cell or the previously accessed cell in the manner of embodiment 1, which will not be described here.

[0432] Step 3: The UE obtains the first assistance information of the target satellite from the network side through NAS signaling or AS signaling (e.g., RRC signaling).

[0433] In some embodiments, the NAS of the UE can also provide the first assistance information of the target satellite to the AS of the UE. For example, the NAS of the UE provides the first assistance information of the target satellite to the AS of the UE. One implementation is that the NAS of the UE directly provides the first assistance information of the target satellite obtained from the core network side to the AS of the UE. Another implementation is that the NAS of the UE infers part of the indication information that needs to be notified to the AS of the UE according to the information obtained from the core network side, i.e., the first assistance information of the target satellite obtained by the AS of the UE is not the indication information directly transmitted from the core network to the UE.

[0434] The first assistance information of the target satellite includes at least one of the following:

[0435] The identification information of one or more target satellites, such as satellite ID2, or satellite ID2, 3, and 4;

[0436] The indication information for indicating the cell selection mode, for example, the indication information for indicating the normal selection, or the indication information for indicating the selection according to the specified satellite, or the indication information for indicating the selection according to the first information, or the indication information for notifying the UE to perform the cell selection in the S&F mode, etc., and the embodiments of the present application are not limited to this.

[0437] The valid time information of the target satellite, for example, the valid time information can include the start time and the end time; or the valid time information includes the start time and the duration; or the start time is agreed in advance (such as the network side indication or based on the protocol agreement) as the time of receiving the first assistance information, and the valid time information can include the duration or the end time, etc. In some embodiments, the valid time information can be provided separately for each target satellite, or the common valid time information is provided for one or more or all target satellites, etc., and the embodiments of the present application are not limited to this.

[0438] The indication information for indicating whether to perform the target cell selection according to the first information and / or the second information.

[0439] Step 4: determining the satellite assistance information for performing the target cell selection based on the first assistance information of the target satellite.

[0440] For example, if the first assistance information contains the identification information of the target satellite, if the first information broadcast by the current cell1 or the first information stored by the UE contains the identification information of at least one of the target satellites, the UE selects the satellite assistance information contained in the first information to perform the target cell selection or measurement. Otherwise, the second information broadcast by the cell1 is selected to perform the target cell selection or measurement.

[0441] For another example, if the first assistance information contains the indication information for indicating the cell selection mode (such as the indication information for indicating the normal selection, or the indication information for indicating the selection according to the specified satellite, or the indication information for indicating the selection according to the first information, or the indication information for notifying the UE to perform the cell selection in the S&F mode, etc.), the satellite assistance information is selected according to the indication information, for example, if the indication information indicates that the cell selection mode is the normal selection, the second information broadcast by the cell1 is selected as the satellite assistance information of the target satellite to perform the target cell selection or measurement; or if the indication information indicates that the cell selection mode is the selection according to the specified satellite, the first information broadcast by the cell1 or the first information stored by the UE or the assistance information associated with one or more target satellites indicated by the higher layer (such as the assistance information associated with one or more target satellites indicated by the higher layer contained in the first information broadcast by the cell1 or the first information stored by the UE, etc.) is selected as the satellite assistance information of the target satellite to perform the target cell selection or measurement.

[0442] For example, if the first assistance information contains the validity time information, the UE selects the first information broadcasted by cell1 or the first information stored by the UE or the assistance information associated with the target satellite indicated by the higher layer as the assistance information of the target satellite within the validity time, and performs the target cell selection or measurement; otherwise, the UE selects the second information as the assistance information of the target satellite, and performs the target cell selection or measurement.

[0443] Alternatively, the UE selects the first information broadcasted by cell1 or the first information stored by the UE or the assistance information associated with the target satellite indicated by the higher layer as the assistance information of the target satellite within the validity time, and performs the target cell selection or measurement; the UE performs the cell selection after the validity time expires, and selects the second information as the assistance information of the target satellite after the cell selection. In some embodiments, the UE can not perform the corresponding AS behavior before the validity time arrives, for example, the UE does not need to perform the neighbor cell measurement, the cell reselection, the cell selection, etc. The validity time can be a common validity time, i.e., the validity time of the first information, or a separate validity time based on the satellite, etc., which is not limited in the embodiments of the present application.

[0444] For example, the first assistance information contains the indication information for indicating whether to perform the target cell selection according to the first information and / or the second information, if the indication information indicates to perform the target cell selection according to the first information, the UE selects the first information broadcasted by cell1 or the first information stored by the UE or the assistance information associated with the target satellite indicated by the higher layer (such as the assistance information associated with the target satellite indicated by the higher layer contained in the first information broadcasted by cell1 or the first information stored by the UE, etc.) as the assistance information of the target satellite, and performs the target cell selection or measurement.

[0445] Step 6: The UE performs the subsequent cell selection / reselection process based on the assistance information of the target satellite.

[0446] In some embodiments, the above three kinds of information can be used in combination or individually. For example, the first assistance information contains the identification information of the target satellite and the validity time information, and within the validity time, the UE associates the assistance information of the target satellite with the identification information of the target satellite as the assistance information of the target satellite, and performs the target cell selection or measurement. The assistance information of the target satellite with the identification information of the target satellite is the assistance information satisfying the target satellite identification indicated by the higher layer in the first information stored by the UE or the first information broadcasted by the current cell.

[0447] In some embodiments, the UE is a UE supporting the S&F mode.

[0448] Embodiment 2-2: determining whether to perform the cell selection or reselection based on the first information or the second information based on whether the access procedure is initiated;

[0449] Step 1: UE camps on cell1, cell1 is served by sat1.

[0450] Step 2: If UE is released to RRC idle state or inactive state in cell1. UE performs subsequent cell selection or reselection or measurement based on the first information provided by cell1 and / or the identification information of one or more target satellites provided by higher layer, i.e. the first information is used as satellite assistance information for target cell selection.

[0451] Step 3: If UE is not released to RRC idle state or inactive state in cell1, UE performs subsequent cell selection or reselection based on the second information provided by cell1, i.e. the second information is used as satellite assistance information for target cell selection.

[0452] In some embodiments, the UE is a UE supporting S&F mode.

[0453] Embodiment 2-3: determining whether to perform cell selection or reselection based on the first information or the second information based on the validity time of the stored first information or the validity time indicated by the higher layer.

[0454] Step 1: UE camps on cell1, cell1 is served by sat1. UE currently stores the first information and / or the indication information of the higher layer, for example: the indication information of the NAS of the terminal notifying the AS of the terminal in embodiment 2-1.

[0455] Step 2: If the currently stored first information and / or the stored indication information of the higher layer is valid, UE performs subsequent cell selection or reselection based on the currently stored first information and / or the stored indication information of the higher layer. For example: selecting the first information broadcast by cell1 or the first information stored by UE or the satellite assistance information associated with one or more target satellites indicated by the higher layer (such as the first information broadcast by cell1 or the first information stored by UE containing the satellite assistance information associated with one or more target satellites indicated by the higher layer, etc.) as satellite assistance information for target cell selection or measurement. In some embodiments, if the first information contains the indication information of the higher layer, whether to use the first information as satellite assistance information for target cell selection can be determined in combination with the indication information of the higher layer in embodiment 2-1, which will not be described here.

[0456] Step 3: If the currently stored first information and / or the stored indication information of the higher layer is not within the validity time or the validity time is expired, UE performs subsequent cell selection or reselection or measurement based on the second information broadcast by cell1.

[0457] In some embodiments, the UE is a UE supporting S&F mode.

[0458] Embodiment 2-4: Selecting satellite assistance information based on UE type or network architecture;

[0459] Step 1: UE camps on cell1, cell1 is served by sat1. Cell1 broadcasts first information and second information.

[0460] Step 2: UE performs cell selection or reselection or other behavior based on one or more of the following ways:

[0461] Way 1: UE supports S&F mode and current network is S&F mode, then UE selects first information as satellite assistance information for target cell selection.

[0462] Way 2: UE does not support S&F mode, then UE selects second information as satellite assistance information for target cell selection.

[0463] Way 3: UE supports S&F mode and current network is S&F mode, and network architecture is second architecture type (e.g. full core network on satellite architecture type), then UE selects second information as satellite assistance information for target cell selection. Otherwise, if network architecture is first architecture type (e.g. partial core network on satellite architecture type), UE selects first information as satellite assistance information for target cell selection.

[0464] Way 4: Current network is not S&F mode, then UE selects second information as satellite assistance information for target cell selection.

[0465] Embodiment 2-5:

[0466] Step 1: UE camps on cell1, cell1 is served by sat1. Cell1 broadcasts second information.

[0467] Step 2: UE performs cell reselection or selection based on second information, or performs neighbor cell measurement based on second information, etc. Further, UE that meets at least one of the following ways, informs UE's NAS by UE's AS about satellite assistance information for target cell selection after cell selection is completed:

[0468] UE supports S&F mode;

[0469] Selected target cell is S&F mode;

[0470] Selected target cell is S&F mode and network architecture is specified architecture type, e.g. partial core network on satellite architecture type.

[0471] Embodiment 3: UE's behavior after selecting target cell.

[0472] Embodiment 3-1: UE behavior based on network architecture type

[0473] Step 1: Based on Embodiment 1 and Embodiment 2, UE selects a target cell based on the first information and / or the second information, for example: selects the target cell cell2, which is served by satellite 2 (sat2).

[0474] Step 2: If sat2 is the satellite in the first information stored by the UE, or sat2 is the satellite in the target satellite list indicated by the higher layer, the UE performs the normal AS behavior in cell2, including at least one of the following:

[0475] Listen to the paging message of the core network;

[0476] Listen to the paging message of the RAN side;

[0477] Read system information and system information update;

[0478] Listen to the paging message in the normal way, for example: the period is the minimum value of the UE specific DRX cycle provided by the higher layer (if any), the UE specific DRX cycle provided by the RRC side (if any), and the default DRX cycle provided by the system information, which is not limited by the embodiments of the present application.

[0479] Always initiate an access procedure or can initiate an access procedure;

[0480] Otherwise, if sat2 is not the satellite in the first information stored by the UE, or sat2 is different from the satellite in the target satellite list indicated by the higher layer, the UE does not perform part of the AS behavior in cell2, such as not performing at least one of the following:

[0481] Listen to the paging message of the core network;

[0482] Listen to the paging message of the RAN side;

[0483] Listen to the paging message in the normal way, for example: the period is the minimum value of the UE specific DRX cycle provided by the higher layer (if any), the UE specific DRX cycle provided by the RRC side (if any), and the default DRX cycle provided by the system information, which is not limited by the embodiments of the present application.

[0484] Alternatively, the UE performs at least one of the following operations:

[0485] Read system information and system information update;

[0486] Listen to the paging message in a specified manner, for example, the periodic value is the default DRX cycle provided by the system information, etc. The embodiments of the present application are not limited to this.

[0487] An access procedure can be initiated.

[0488] Step 3: In some embodiments, after the UE selects the target cell cell2, the UE's AS submits the relevant information (i.e., the third information) of the target cell cell2 to the NAS, wherein the third information includes at least one of the following:

[0489] Satellite identification information of the target cell cell2, for example: satellite ID 2.

[0490] Satellite network architecture information of the target cell cell2, for example: network architecture information includes but is not limited to: indication information for indicating partial core network on satellite, indication information for indicating full core network on satellite, or core network element information on satellite (such as MME), or indication information for indicating whether there is core network on satellite, etc. The embodiments of the present application are not limited to this.

[0491] Satellite working mode information of the target cell cell2, for example: indication information for indicating whether the working mode of the satellite of the target cell cell2 is S&F mode, or indication information for indicating whether the working mode of the satellite of the target cell cell2 is normal mode, etc. The embodiments of the present application are not limited to this.

[0492] Satellite validity time information of the target cell cell2, for example: the validity time information can be the validity time that sat2 can provide service for the UE, such as the information of the end time of satellite coverage or service, or the validity time that the satellite can provide coverage or service for the UE according to ephemeris information, reference point information and UE position calculation, etc. The embodiments of the present application are not limited to this.

[0493] Satellite auxiliary information of the target cell cell2, for example, see embodiment one, which is not described here.

[0494] In some embodiments, the UE performing step 3 can be determined based on the NAS indication of the UE, for example: the NAS of the UE instructs the AS of the UE to report the third information.

[0495] Step 4: In some embodiments, based on step 3, the NAS of the UE decides whether to trigger a connection establishment procedure, and / or the content of the transmitted data packet or signaling, and / or the length of time and the running mode of the NAS timer, and / or determines the operation mode of the AS layer, etc.

[0496] For example, when the target cell is consistent with the satellite indicated by the NAS of the UE, the NAS of the UE can continue to trigger the NAS procedure that has not been completed. Otherwise, a new NAS procedure can be triggered, or the NAS layer timer length, the running mode of the timer, or whether the UE performs the normal AS operation is determined according to the network architecture information and / or the working mode information.

[0497] Step 5: In some embodiments, when the service provided by the target cell or all target satellites indicated by the upper layer ends or the valid time is expired, the AS of the UE informs the NAS of the UE.

[0498] Embodiment 3-2: UE behavior based on indication information

[0499] Step 1: Based on Embodiment 1 and Embodiment 2, the UE selects a target cell based on the first information and / or the second information, for example, the target cell cell2 is selected, and the cell2 is served by the satellite 2 (sat2).

[0500] Step 2: The NAS of the UE indicates the AS behavior to the AS layer of the UE, including but not limited to at least one of the following:

[0501] performing a normal AS behavior;

[0502] listening to network paging;

[0503] whether to initiate an RRC access procedure, such as whether the UE determines to initiate an access procedure in the cell.

[0504] wherein the performing a normal AS behavior includes at least one of the following:

[0505] listening to paging messages of a core network;

[0506] listening to paging messages of a RAN side;

[0507] reading system information and system information updating;

[0508] listening to paging in a normal manner, for example, a cycle value is the minimum value of a UE specific DRX cycle provided by a higher layer (if any), a UE specific DRX cycle provided by an RRC side (if any), and a default DRX cycle provided by system information, and the embodiments of the present application are not limited thereto.

[0509] always initiating an access procedure or can initiate an access procedure;

[0510] listening to network paging, including at least one of the following:

[0511] listening to paging messages of a core network;

[0512] Listen to the paging message from the RAN side;

[0513] Listen to the paging in a regular way, for example, the minimum of the UE specific DRX cycle provided by the higher layer (if any), the UE specific DRX cycle provided by the RRC side (if any), the default DRX cycle provided by the system information, etc., without limitation.

[0514] Otherwise, if the higher layer indicates not to perform the regular AS behavior, the UE does not perform the partial AS behavior in the cell2, including at least one of the following:

[0515] Listen to the paging message from the core network side;

[0516] Listen to the paging message from the RAN side;

[0517] Listen to the paging in a regular way, for example, the minimum of the UE specific DRX cycle provided by the higher layer (if any), the UE specific DRX cycle provided by the RRC side (if any), the default DRX cycle provided by the system information, etc., without limitation.

[0518] Or, the UE can perform at least one of the following operations:

[0519] Read the system information and the system information update;

[0520] Listen to the paging in a specified way, for example, the default DRX cycle provided by the system information, etc., without limitation.

[0521] Access procedure can be initiated.

[0522] In some embodiments, after the UE selects the target cell cell2, the AS of the UE submits the relevant information (i.e., the third information) of the target cell cell2 to the NAS, wherein the third information includes at least one of the following:

[0523] The satellite identification information of the target cell cell2, for example, satellite ID 2.

[0524] The satellite network architecture information of the target cell cell2, for example, the network architecture information includes but is not limited to the indication information for indicating the partial core network on satellite, the indication information for indicating the full core network on satellite, or the core network network element information on satellite (for example, MME), or the indication information for indicating whether there is a core network on satellite, etc., without limitation.

[0525] Satellite working mode information of the target cell cell2, for example: indication information for indicating whether the working mode of the satellite of the target cell cell2 is S&F mode, or indication information for indicating whether the working mode of the satellite of the target cell cell2 is normal mode, etc., the embodiments of the present application are not limited thereto.

[0526] Satellite valid time information of the target cell cell2, for example: the valid time information can be the valid time during which the satellite sat2 can provide services for the UE, such as information of the end time of satellite coverage or service, or the valid time during which the satellite can provide coverage or service for the UE according to ephemeris information, reference point information and UE position calculation, etc., the embodiments of the present application are not limited thereto.

[0527] Satellite assistance information of the target cell cell2, for example, see embodiment one, which will not be repeated here.

[0528] In some embodiments, the step 3 performed by the UE can be determined based on the NAS indication of the UE, for example: the NAS indication of the UE instructs the AS of the UE to report the third information.

[0529] Step 4: In some embodiments, based on step 3, the NAS of the UE decides whether to trigger a connection establishment process, and / or the content of the transmitted data packet or signaling, and / or the length of time when the NAS timer is started, the running mode of the timer, and / or determines the operation mode of the AS layer, etc.

[0530] For example: when the target cell is consistent with the satellite indicated by the NAS of the UE, the NAS of the UE can continue to trigger the NAS process that has not been completed. Otherwise, a new NAS process can be triggered, or the length of time of the NAS layer timer, the running mode of the timer or whether the UE performs the normal AS operation is determined according to the network architecture information and / or the working mode information, etc.

[0531] Step 5: In some embodiments, when the services provided by all target satellites indicated by the target cell or the upper layer end or the valid time is out, the AS of the UE informs the NAS of the UE.

[0532] Embodiment four: Maintenance of the first information.

[0533] Method one: the UE always reads the first information broadcast by the current system information;

[0534] Step 1: In the case that the UE has not stored any first information, the UE camps in cell1, which is served by sat1, and cell1 broadcasts the first information.

[0535] Step 2-1: The UE reads the first information broadcast by cell1 and stores it.

[0536] Step 2-2: If the UE’s AS receives an indication information, for example, an indication information of reading the first information, or a high layer indication information (e.g., a list of satellite IDs) or an indication information of cell selection manner as involved in Embodiment Two, etc., and the UE determines that it is necessary to read the first information based on the indication information, then the UE reads the first information and stores the first information in some embodiments; otherwise, the UE ignores the first information.

[0537] Step 3: When the UE performs cell selection or reselection, the UE selects a target cell cell2 served by sat2, and if the UE has stored the first information, the UE can delete (or release) the currently stored first information and perform steps 1-2.

[0538] Method Two: Storing the first information based on the indication information;

[0539] Step 1: When the UE has not stored any first information, the UE camps on cell1 served by sat1, and cell1 broadcasts the first information.

[0540] Step 2: The UE accesses cell1 and is released to an RRC idle state or an inactive state by cell1.

[0541] Step 3: If the UE’s AS receives an indication information, for example, an indication information of reading the first information, or a high layer indication information (e.g., a list of satellite IDs) or an indication information of cell selection manner as involved in Embodiment Two, etc., and the UE determines that it is necessary to read the first information based on the indication information, then the UE reads the first information and stores the first information in some embodiments; otherwise, the UE ignores the first information.

[0542] Step 4: When the UE performs cell selection or reselection, the UE selects a target cell cell2 served by sat2, and if the UE has stored the first information, the UE keeps the currently stored first information and ignores the first information broadcast by cell2.

[0543] Step 5: In some embodiments, when the validity time of the stored first information expires (which can be determined based on network device-provided validity time configuration information or based on ephemeris information, etc.), the UE deletes (or releases) the currently stored first information and performs steps 1-4.

[0544] Method Three: Maintaining the first information based on whether it is accessed in the current cell;

[0545] Step 1: When the UE1 and UE2 have not stored any first information, the UE camps on cell1 served by sat1, and cell1 broadcasts the first information.

[0546] Step 2: UE1 accesses cell1 and releases to RRC idle or inactive state via cell1. UE2 performs RRC setup procedure at cell2.

[0547] Step 3: UE1 reads the first information and stores the first information in some embodiments; UE2 ignores the first information.

[0548] Step 4: When UE1 performs cell selection or reselection, UE1 selects target cell cell2 which is served by sat2, if UE has stored the first information, UE1 keeps the current stored first information and ignores the first information broadcast by cell2. UE2 repeats steps 1-3.

[0549] Step 5: In some embodiments, when the valid time of the stored first information expires (e.g. the valid time can be determined based on the valid time configuration information provided by the network device or based on ephemeris information, etc.), UE deletes (or releases) the current stored first information and performs steps 1-4.

[0550] Method four: UE ensures that there is valid first information;

[0551] Step 1: UE stores the first information and determines the satellite that UE needs to access or update the first information due to the update of the first information, which can be determined based on the time of providing coverage, for example: the first information contains sat1, sat2, sat3, and sat3 is the satellite that provides service or coverage latest, then the satellite is sat3. Or, the satellite can be a position explicitly indicated by the network side, for example: the network side indicates sat3, in some embodiments, the network side can only provide one satellite, or inform the UE that the satellite is the specified satellite in the first information, etc.

[0552] Step 2: Before UE selects a cell served by sat3, UE does not initiate an access procedure in any cell, then UE maintains the stored first information.

[0553] Step 3-1: UE selects a cell served by sat3 and initiates a connection setup procedure in the cell, then UE stores the first information provided by sat3, or UE reads new first information through sat3 based on the indication information (e.g. target satellite ID, cell selection mode indication information, etc.) and stores it.

[0554] In some embodiments, if UE accesses other network before sat3 provides coverage, the stored first information can be updated according to step 3.

[0555] Step 3-2: The UE selects a cell provided by sat3 to provide services, deletes (or releases) the previously stored first information, reads the first information broadcast by the cell, and stores it.

[0556] In some embodiments, the first information stored by the UE can be complete first information broadcast by the current cell, or can be only auxiliary information associated with one or more target satellite IDs indicated by the higher layer in the first information. For example, the network broadcasts information of sat1, sat2, and sat3 in the first information. The UE stores information of sat1, sat2, and sat3; or, if the target satellite ID information, for example, ID information of sat1 and sat2, is provided by the higher layer, the UE stores information of sat1 and sat2, and does not need to store information of sat3.

[0557] In some embodiments, the UE can maintain the first information in one of the above-mentioned ways one to four, or can maintain the first information in a combination of at least two of the above-mentioned ways one to four, etc., and the embodiments of the present application are not limited thereto.

[0558] It should be noted that the validity time involved in the above embodiments can be provided to the UE by the network side through explicit signaling, or can be provided to the AS of the UE by the NAS of the UE through explicit information, or can be determined by the UE based on the auxiliary information of the network side, for example, in combination with ephemeris information, or can be determined by the AS based on the information provided by the NAS, etc., and the embodiments of the present application are not limited thereto.

[0559] The above embodiments introduce the information processing method of the present application, and the following embodiments will further describe the corresponding terminal and network device in combination with the drawings.

[0560] As shown in FIG. 4, the present embodiment provides a terminal, which comprises a memory 41, a transceiver 42, and a processor 43; wherein the memory 41 is configured to store a computer program; the transceiver 42 is configured to transceive data under the control of the processor 43; for example, the transceiver 42 is configured to receive and send data under the control of the processor 43; and the processor 43 is configured to read the computer program in the memory 41 and perform the following operations:

[0561] obtain first information and / or second information provided by a network device;

[0562] select a target cell according to the first information and / or the second information.

[0563] In some embodiments, the first information comprises at least one of the following:

[0564] auxiliary information of a satellite indicated by the network device for the terminal to access;

[0565] The assistance information of the satellite providing the same service for the terminal;

[0566] The assistance information of the satellite providing continuous service for the terminal;

[0567] The assistance information of the satellite registered by the terminal;

[0568] The assistance information of the satellite which can resume the current communication process of the terminal;

[0569] The assistance information of the satellite connected with the same ground network unit as the current serving satellite;

[0570] And / or,

[0571] The second information includes at least one of the following:

[0572] The assistance information of the neighboring cell satellite;

[0573] The assistance information of the serving cell satellite;

[0574] The assistance information of the satellite predicting discontinuous coverage.

[0575] In some embodiments, the processor is configured to read the computer program in the memory and perform the following operations:

[0576] According to the second information, determine the first information;

[0577] According to the first information, select a target cell.

[0578] In some embodiments, the processor is configured to read the computer program in the memory and perform the following operations:

[0579] Receive the first association information sent by the network device, and obtain the first information from the second information according to the first association information;

[0580] Or,

[0581] When it is determined that the network device works in the first network operation mode, determine the first information according to the second information.

[0582] In some embodiments, the processor is configured to read the computer program in the memory and perform the following operations:

[0583] Receive the first signaling and / or the second signaling sent by the network device; wherein the first signaling carries the first information, and the second signaling carries the second information.

[0584] In some embodiments, the processor is configured to read the computer program in the memory and perform the following operations:

[0585] In a case where a first condition is met, a target cell is selected according to the first information; wherein the first condition comprises at least one of the following:

[0586] The first information comprises auxiliary information of at least one target satellite;

[0587] The terminal acquires first indication information;

[0588] The cell from which the terminal acquires the first information is a cell from which the terminal last left a connected state;

[0589] The terminal supports a first network operation mode;

[0590] The network architecture of the network device is a first architecture type;

[0591] Within a valid time.

[0592] In some embodiments, the processor is configured to read a computer program in the memory and perform the following operations:

[0593] In a case where a second condition is met, a target cell is selected according to the second information; wherein the second condition comprises at least one of the following:

[0594] The first information does not comprise auxiliary information of any target satellite;

[0595] The terminal does not acquire first indication information;

[0596] The terminal acquires second indication information;

[0597] Exceeds a valid time;

[0598] Not within a valid time;

[0599] The terminal does not support a first network operation mode;

[0600] The network architecture of the network device is a second architecture type;

[0601] The terminal does not receive indication information for indicating a target satellite.

[0602] In some embodiments, the processor is configured to read a computer program in the memory and perform the following operations:

[0603] Determine third information; wherein the third information is used to determine at least one of the following:

[0604] Whether to trigger a connection establishment process of an access layer;

[0605] Send data packet content;

[0606] Content of the non-access stratum signaling;

[0607] Timer length of the non-access stratum;

[0608] Operation mode of the non-access stratum timer;

[0609] Operation mode of the AS.

[0610] In some embodiments, the third information comprises at least one of:

[0611] Satellite identification information of the selected target cell;

[0612] Satellite network architecture information of the selected target cell;

[0613] Satellite operation mode information of the selected target cell;

[0614] Satellite validity time information of the selected target cell;

[0615] Satellite assistance information of the selected target cell.

[0616] In some embodiments, in a case that a target cell is selected according to the second information, or a satellite of the selected target cell does not match a target satellite, the processor is configured to read the computer program in the memory and perform at least one of the following operations:

[0617] The selected target cell does not perform paging message monitoring;

[0618] The selected target cell monitors system information modification notification.

[0619] In some embodiments, in a case that a target cell is selected according to the first information, or a satellite of the selected target cell matches a target satellite, the processor is configured to read the computer program in the memory and perform at least one of the following operations:

[0620] The selected target cell performs paging message monitoring;

[0621] The selected target cell monitors system information modification notification.

[0622] In some embodiments, the processor is configured to read the computer program in the memory and perform the following operation:

[0623] According to the indication information, determine whether to perform a first operation in a target cell; wherein the first operation comprises at least one of the following: a regular access stratum operation, monitoring a paging message, initiating an access procedure.

[0624] In some embodiments, the processor is configured to read the computer program in the memory and perform at least one of the following operations:

[0625] In case of selecting the first cell, storing the first information provided by the first cell or updating the first information stored by the terminal to the first information provided by the first cell;

[0626] In case of leaving the connected state from the second cell, storing the first information provided by the second cell or updating the first information stored by the terminal to the first information provided by the second cell;

[0627] Storing or updating the first information based on the indication of the high layer signaling;

[0628] In case of exceeding the valid time of the first information stored by the terminal, deleting the first information stored by the terminal;

[0629] In case of the terminal accessing the target satellite, deleting the first information stored by the terminal.

[0630] In FIG. 4, the bus architecture can include any number of interconnected buses and bridges, which link various circuits, including one or more processors, represented by the processor 43, and the memory, represented by the memory 41. The bus architecture can also link various other circuits, such as peripheral devices, voltage stabilizers, and power management circuits, which are well known in the art, and thus, are not further described herein. The bus interface provides an interface. The transceiver 42 can be a plurality of elements, including a transmitter and a receiver, which provide a means for communicating with various other apparatuses over a transmission medium, including wireless channels, wired channels, optical cables, and the like. The user interface 44 can also be an interface that can be externally or internally connected to the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like, for different user equipment.

[0631] The processor 43 is responsible for managing the bus architecture and general processing, and the memory 41 can store data used by the processor 43 in performing operations.

[0632] In some embodiments, the processor 43 can be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a complex programmable logic device (CPLD), and the processor can also adopt a multi-core architecture.

[0633] The processor executes any method provided by the embodiments of the application according to the executable instructions obtained by calling the computer program stored in the memory. The processor and the memory can also be arranged physically separately.

[0634] It should be noted that the terminal provided by the embodiments of the present disclosure can implement all the method steps implemented by the information processing method embodiments on the terminal side, and achieve the same technical effects. Therefore, the same parts and beneficial effects of the method embodiments in the embodiments will not be described in detail.

[0635] As shown in FIG. 5, the embodiments of the present application provide a terminal 500, comprising:

[0636] The acquisition unit 510 is configured to acquire first information and / or second information provided by a network device.

[0637] The first processing unit 520 is configured to select a target cell according to the first information and / or the second information.

[0638] In some embodiments, the first information comprises at least one of the following:

[0639] The assistance information of a satellite indicated by the network device for the terminal to access;

[0640] The assistance information of a satellite providing the same service for the terminal;

[0641] The assistance information of a satellite providing continuous service for the terminal;

[0642] The assistance information of a satellite registered by the terminal;

[0643] The assistance information of a satellite capable of resuming the current communication process of the terminal;

[0644] The assistance information of a satellite connected to the same ground network unit as the current serving satellite;

[0645] And / or,

[0646] The second information comprises at least one of the following:

[0647] The assistance information of a neighboring satellite;

[0648] The assistance information of a serving cell satellite;

[0649] The assistance information of a satellite predicting non-continuous coverage.

[0650] In some embodiments, the acquisition unit 510 is further configured to:

[0651] According to the second information, determine the first information;

[0652] According to the first information, a target cell is selected.

[0653] In some embodiments, the obtaining unit 510 is further configured to:

[0654] receive first association information sent by the network device, and obtain the first information from the second information according to the first association information;

[0655] or,

[0656] when it is determined that the network device operates in the first network operation mode, determine the first information according to the second information.

[0657] In some embodiments, the obtaining unit 510 is further configured to:

[0658] receive first signaling and second signaling sent by the network device; wherein the first signaling carries the first information, and the second signaling carries the second information.

[0659] In some embodiments, the first processing unit 520 is further configured to:

[0660] when a first condition is met, select a target cell according to the first information; wherein the first condition includes at least one of the following:

[0661] the first information contains assistance information of at least one target satellite;

[0662] the terminal obtains first indication information;

[0663] the cell from which the terminal obtains the first information is a cell from which the terminal last left a connected state;

[0664] the terminal supports a first network operation mode;

[0665] the network architecture of the network device is a first architecture type;

[0666] within a valid time.

[0667] In some embodiments, the first processing unit 520 is further configured to:

[0668] when a second condition is met, select a target cell according to the second information; wherein the second condition includes at least one of the following:

[0669] the first information does not contain assistance information of any target satellite;

[0670] the terminal does not obtain first indication information;

[0671] the terminal obtains second indication information;

[0672] the validity time is exceeded;

[0673] the validity time is not within;

[0674] the terminal does not support the first network operation mode;

[0675] the network architecture of the network device is of a second architecture type;

[0676] the terminal does not receive indication information indicating the target satellite.

[0677] In some embodiments, the terminal 500 further comprises:

[0678] a sending unit configured to determine third information, wherein the third information is used to determine at least one of the following:

[0679] whether to trigger a connection establishment procedure of an access layer;

[0680] a content of a data packet;

[0681] a content of non-access layer signaling;

[0682] a timer length of a non-access layer;

[0683] a running mode of a non-access layer timer;

[0684] an operation mode of an AS.

[0685] In some embodiments, the third information comprises at least one of the following:

[0686] satellite identification information of a selected target cell;

[0687] satellite network architecture information of a selected target cell;

[0688] satellite operation mode information of a selected target cell;

[0689] satellite validity time information of a selected target cell;

[0690] satellite assistance information of a selected target cell.

[0691] In some embodiments, in a case where a target cell is selected according to the second information, or a satellite of the selected target cell does not match a target satellite, the terminal 500 further comprises at least one of the following:

[0692] a second processing unit configured to, in a case where the selected target cell does not perform listening of a paging message;

[0693] a first listening unit configured to listen to a system information modification notification in the selected target cell.

[0694] In some embodiments, the terminal 500 further comprises at least one of the following:

[0695] a third processing unit, configured to perform paging message monitoring in the selected target cell;

[0696] a second monitoring unit, configured to monitor system information modification notification in the selected target cell.

[0697] In some embodiments, the terminal 500 further comprises:

[0698] a determining unit, configured to determine, according to the indication information, whether to perform a first operation in the target cell; wherein the first operation comprises at least one of the following: a regular access layer operation, monitoring a paging message, and initiating an access procedure.

[0699] In some embodiments, the terminal 500 further comprises at least one of the following:

[0700] a first storage unit, configured to, in the case of selecting a first cell, store first information provided by the first cell or update first information already stored by the terminal to the first information provided by the first cell;

[0701] a second storage unit, configured to, in the case of leaving a connected state from a second cell, store first information provided by the second cell or update first information already stored by the terminal to the first information provided by the second cell;

[0702] a third storage unit, configured to store or update the first information based on an indication of high layer signaling;

[0703] a first deletion unit, configured to delete the first information stored by the terminal after the validity time of the first information stored by the terminal is exceeded;

[0704] a second deletion unit, configured to delete the first information stored by the terminal in the case of accessing a target satellite.

[0705] It should be noted that the terminal provided by the embodiments of the present disclosure can realize all the method steps realized by the information processing method embodiments of the terminal side, and achieve the same technical effects. Therefore, the same parts and beneficial effects of the method embodiments will not be described in detail.

[0706] As shown in FIG. 6, the embodiment of the present application provides a network device, comprising a memory 61, a transceiver 62, and a processor 63; wherein the memory 61 is configured to store a computer program; the transceiver 62 is configured to transceive data under the control of the processor 63; the transceiver 62 is configured to receive and send data under the control of the processor 63; the processor 63 is configured to read the computer program in the memory 61 and perform the following operations:

[0707] providing the terminal with first information and / or second information; wherein the first information and / or the second information are used for the terminal to select a target cell.

[0708] In some embodiments, the first information comprises at least one of the following:

[0709] auxiliary information of a satellite accessed by the terminal indicated by the network device;

[0710] auxiliary information of a satellite providing the same service for the terminal;

[0711] auxiliary information of a satellite providing continuous service for the terminal;

[0712] auxiliary information of a satellite registered by the terminal validly;

[0713] auxiliary information of a satellite capable of resuming the current communication process of the terminal;

[0714] auxiliary information of a satellite connected to the same ground network unit as the satellite currently serving the terminal;

[0715] and / or,

[0716] the second information comprises at least one of the following:

[0717] auxiliary information of a neighboring cell satellite;

[0718] auxiliary information of a serving cell satellite;

[0719] auxiliary information of a satellite predicting non-continuous coverage.

[0720] In some embodiments, the processor is configured to read the computer program in the memory and perform the following operations:

[0721] sending first signaling and / or second signaling to the terminal; wherein the first signaling carries the first information, and the second signaling carries the second information;

[0722] or,

[0723] sending first association information to the terminal; wherein the first association information is used to obtain the first information from the second information;

[0724] or,

[0725] sending second signaling to the terminal; wherein the first signaling carries the second information, and the first information is determined based on the second information when the network device works in the first network operation mode.

[0726] In some embodiments, the processor is configured to read a computer program in the memory and perform at least one of the following operations:

[0727] sending first indication information to the terminal; wherein the first indication information is used to instruct the terminal to select a target cell according to the first information;

[0728] sending second indication information to the terminal; wherein the second indication information is used to instruct the terminal to select a target cell according to the second information;

[0729] The network device works in the first network operation mode.

[0730] In FIG. 6, the bus architecture can include any number of interconnected buses and bridges, which are linked together by various circuits, including one or more processors represented by processor 63 and memory represented by memory 61. The bus architecture can also link various other circuits, such as peripheral devices, voltage stabilizers, and power management circuits, which are well known in the art, and thus, are not further described herein. The bus interface provides an interface. The transceiver 62 can be a plurality of elements, including a transmitter and a receiver, which provide units for communicating with various other devices on transmission media, including wireless channels, wired channels, optical cables, and the like. The processor 63 is responsible for managing the bus architecture and general processing, and the memory 61 can store data used by the processor 63 when performing operations.

[0731] The processor 63 can be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD), and the processor can also adopt a multi-core architecture.

[0732] It should be noted that the above network device provided by the embodiments of the present disclosure can implement all method steps achieved by the network device side information processing method embodiments, and achieve the same technical effects. Therefore, the same parts and beneficial effects of the method embodiments are not described in detail herein.

[0733] As shown in FIG. 7, the embodiment of the present application provides a network device 700, comprising:

[0734] The providing unit 710 is configured to provide the terminal with first information and / or second information; wherein the first information and / or the second information are used for the terminal to select a target cell.

[0735] In some embodiments, the first information comprises at least one of the following:

[0736] The assistance information of a satellite indicated by the network device for the terminal to access;

[0737] The assistance information of a satellite providing the same service for the terminal;

[0738] The assistance information of a satellite providing continuous service for the terminal;

[0739] The assistance information of a satellite registered by the terminal;

[0740] The assistance information of a satellite capable of resuming the current communication process of the terminal;

[0741] The assistance information of a satellite connected to the same ground network unit as the satellite currently serving the terminal;

[0742] And / or,

[0743] The second information comprises at least one of the following:

[0744] The assistance information of a satellite in a neighboring area;

[0745] The assistance information of a satellite in a serving cell;

[0746] The assistance information of a satellite in a predicted non-continuous coverage.

[0747] In some embodiments, the providing unit 710 is further configured to:

[0748] Send first signaling and / or second signaling to the terminal; wherein the first signaling carries the first information, and the second signaling carries the second information;

[0749] Or,

[0750] Send first association information to the terminal; wherein the first association information is used to obtain the first information from the second information;

[0751] Or,

[0752] Send second signaling to the terminal; wherein the first signaling carries the second information, and the first information is determined based on the second information when the network device works in a first network operation mode.

[0753] In some embodiments, the network device 700 further comprises at least one of the following:

[0754] a first sending unit configured to send first indication information to the terminal; wherein the first indication information is used to instruct the terminal to select a target cell according to the first information;

[0755] a second sending unit configured to send second indication information to the terminal; wherein the second indication information is used to instruct the terminal to select a target cell according to the second information;

[0756] a processing unit configured to work in a first network operation mode.

[0757] It should be noted that the above network device provided by the embodiments of the present disclosure can realize all the method steps realized by the network device side information processing method embodiments, and achieve the same technical effects. Therefore, the same parts and beneficial effects of the method embodiments will not be described in detail.

[0758] It should be noted that the division of units in the embodiments of the present application is illustrative, and is only a logical function division. In actual implementation, another division mode can be used. In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0759] When the integrated unit is realized in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solutions of the present application or the part that essentially contributes to the related art or the whole or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various program code storage media.

[0760] The embodiment of the present disclosure further provides a processor-readable storage medium, which stores a computer program for causing a processor to perform the steps of the method for processing information at a terminal side or for causing a processor to perform the steps of the method for processing information at a network device side, and achieves the same technical effects. Here, the same parts and beneficial effects of the embodiment as the method embodiment are not described in detail.

[0761] The embodiment of the present disclosure further provides a computer program product, which comprises computer instructions for implementing each process of the method for processing information at a terminal side or for implementing each process of the method for processing information at a network device side and achieving the same technical effects when executed by a processor. To avoid repetition, the same parts and beneficial effects of the embodiment as the method embodiment are not described in detail.

[0762] The processor-readable storage medium can be any available medium or data storage device that a processor can access, including but not limited to a magnetic storage (e.g., floppy disk, hard disk, tape, magneto-optical disk (MO), etc.), an optical storage (e.g., compact disc (CD), digital video disc (DVD), Blu-ray disc (BD), high-definition versatile disc (HVD), etc.), and a semiconductor storage (e.g., ROM, erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), non-volatile memory (NAND (Non-volatile Memory Device) FLASH), solid state disk (Solid State Drives, SSD), etc.).

[0763] Those skilled in the art should understand that the embodiments of the present disclosure can be provided as a method, a system, or a computer program product. Therefore, the present disclosure can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present disclosure can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) containing computer-usable program code.

[0764] The computer executable instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operations to be performed on the computer or other programmable data processing apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable data processing apparatus provide steps for implementing the functions specified in the flowchart and / or block diagram block or blocks.

[0765] These computer executable instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture including instructions which implement the function specified in the flowchart and / or block diagram block or blocks.

[0766] The computer executable instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operations to be performed on the computer or other programmable data processing apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable data processing apparatus provide steps for implementing the functions specified in the flowchart and / or block diagram block or blocks.

[0767] Further, it is indicated that in the apparatus and method of the present disclosure, it is obvious that each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be considered as equivalent solutions of the present disclosure. Moreover, the steps of performing the above series of processes can naturally be executed in time sequence according to the order of description, but do not necessarily have to be executed in time sequence, and certain steps can be executed in parallel or independently of each other. It can be understood by those skilled in the art that all or any steps or components of the method and apparatus of the present disclosure can be implemented in hardware, firmware, software or a combination thereof in any computing device (including processors, storage media, etc.) or network of computing devices, which can be realized by those skilled in the art with their basic programming skills after reading the description of the present disclosure.

[0768] Moreover, it should be noted that in the apparatus and method of the present disclosure, it is apparent that each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be considered as equivalent solutions of the present disclosure. Moreover, the steps of performing the above series of processes can naturally be executed in time sequence according to the order of description, but do not necessarily have to be executed in time sequence, and some steps can be executed in parallel or independently of each other. It can be understood by those skilled in the art that all or any steps or components of the method and apparatus of the present disclosure can be implemented in hardware, firmware, software, or a combination thereof, in any computing device (including processors, storage media, etc.) or network of computing devices, using the basic programming skills of those skilled in the art upon reading the description of the present disclosure.

[0769] It should be noted that it should be understood that the division of each module above is only a logical division of functions, and in actual implementation, all or part of them can be integrated into one physical entity, or can be physically separated. Moreover, these modules can all be implemented in the form of software called by a processing element; all can be implemented in the form of hardware; or some modules can be implemented in the form of software called by a processing element, and some modules can be implemented in the form of hardware. For example, a certain module can be a separately established processing element, or can be integrated into a certain chip of the above apparatus, in addition, it can also be stored in the form of program code in the memory of the above apparatus, and called and executed by a certain processing element of the above apparatus to determine the function of the above module. The implementation of other modules is similar. Moreover, all or part of these modules can be integrated together, or can be independently implemented. The processing element described herein can be an integrated circuit having a signal processing capability. In the implementation process, each step of the above method or each of the above modules can be completed by the integrated logic circuit of hardware or the instruction of software in the processing element.

[0770] For example, each module, unit, subunit, or submodule can be one or more integrated circuits configured to implement the above methods, such as one or more application-specific integrated circuits (ASICs), one or more digital signal processors (DSPs), or one or more field-programmable gate arrays (FPGAs). As another example, when a module is implemented using processing element scheduler code, the processing element can be a general-purpose processor, such as a central processing unit (CPU) or other processor capable of calling program code. Furthermore, these modules can be integrated together to implement a system-on-a-chip (SOC).

[0771] The terms “first,” “second,” etc., used in this disclosure and in the claims are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this disclosure described herein may be implemented in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus. Additionally, the use of “and / or” in the specification and claims indicates at least one of the connected objects, such as A and / or B and / or C, indicating seven possibilities: A alone, B alone, C alone, and both A and B, both B and C, both A and C, and A, B, and C. Similarly, the use of “at least one of A and B” in this specification and claims should be understood as “A alone, B alone, or both A and B.”

[0772] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. An information processing method, comprising: a terminal obtaining first information and / or second information provided by a network device; the terminal selecting a target cell according to the first information and / or the second information; wherein the first information comprises at least one of the following: auxiliary information of a satellite indicated by the network device for the terminal to access; auxiliary information of a satellite providing the same service as the terminal; auxiliary information of a satellite providing continuous service for the terminal; auxiliary information of a satellite registered by the terminal; auxiliary information of a satellite capable of resuming a current communication process of the terminal; auxiliary information of a satellite connected to a same ground network unit as a current serving satellite; and / or the second information comprises at least one of the following: auxiliary information of a neighboring cell satellite; auxiliary information of a serving cell satellite; auxiliary information of a satellite predicting non-continuous coverage. the terminal selecting a target cell according to the second information, comprising:

2. The information processing method according to claim 1, wherein the terminal determining the first information according to the second information; the terminal selecting a target cell according to the first information. the terminal determining the first information according to the second information, comprising:

3. The information processing method according to claim 2, wherein the terminal receiving first association information sent by the network device, and obtaining the first information from the second information according to the first association information; or the terminal determining the first information according to the second information when determining that the network device is working in a first network operation mode. the terminal obtaining first information and / or second information provided by a network device, comprising:

4. The information processing method according to claim 1, wherein the terminal receiving first signaling and / or second signaling sent by the network device; wherein the first signaling carries the first information, and the second signaling carries the second information. the terminal selecting a target cell according to the first information, comprising:

5. The information processing method according to claim 1, wherein in a case where a first condition is met, the terminal selecting a target cell according to the first information; wherein the first condition comprises at least one of the following: the first information containing auxiliary information of at least one target satellite; the terminal obtaining first indication information; a cell where the terminal obtains the first information being a cell where the terminal last left a connected state; the terminal supporting a first network operation mode; a network architecture of the network device being a first architecture type; being within a valid time. the terminal selecting a target cell according to the second information, comprising:

6. The information processing method according to claim 1 or 5, wherein in a case where a second condition is met, the terminal selecting a target cell according to the second information; wherein the second condition comprises at least one of the following: the first information not containing auxiliary information of any target satellite; the terminal not obtaining first indication information; the terminal obtaining second indication information; exceeding a valid time; not being within a valid time; the terminal not supporting a first network operation mode; a network architecture of the network device being a second architecture type; the terminal not receiving indication information for indicating a target satellite. after the terminal selecting a target cell according to the first information and / or the second information, further comprising:

7. The information processing method according to any one of claims 1 to 6, wherein the terminal determining third information; wherein the third information is used to determine at least one of the following: whether to trigger a connection establishment process of an access layer; a data packet content; ​ Content of the non-access stratum signaling; Timer length of the non-access stratum; Operation mode of the non-access stratum timer; Operation mode of the AS.

8. The information processing method according to claim 7, wherein The third information includes at least one of: Satellite identification information of the selected target cell; Satellite network architecture information of the selected target cell; Satellite operation mode information of the selected target cell; Satellite validity time information of the selected target cell; Satellite assistance information of the selected target cell.

9. The information processing method according to any one of claims 1 to 6, wherein In the case of selecting a target cell according to the second information, or the satellite of the selected target cell does not match the target satellite, the method further includes at least one of: The terminal does not perform paging message listening in the selected target cell; The terminal listens to the system information modification notification in the selected target cell.

10. The information processing method according to any one of claims 1 to 6, wherein In the case of selecting a target cell according to the first information, or the satellite of the target cell matches the target satellite, the method further includes at least one of: The terminal performs paging message listening in the selected target cell; The terminal listens to the system information modification notification in the selected target cell.

11. The information processing method according to any one of claims 1 to 6, the method further comprising: The terminal determines whether to perform a first operation in a target cell according to the indication information; wherein the first operation includes at least one of: a regular access stratum operation, listening to a paging message, initiating an access procedure.

12. The information processing method according to any one of claims 1 to 6, the method further comprising at least one of: In the case of the terminal selecting a first cell, storing the first information provided by the first cell or updating the first information already stored by the terminal to the first information provided by the first cell; In the case of the terminal leaving a connected state from a second cell, storing the first information provided by the second cell or updating the first information already stored by the terminal to the first information provided by the second cell; The terminal stores or updates the first information based on the indication of the high layer signaling; The terminal deletes the first information stored by the terminal after exceeding the validity time of the first information stored by the terminal; In the case of the terminal accessing a target satellite, deleting the first information stored by the terminal.

13. An information processing method, comprising: A network device provides a terminal with first information and / or second information; wherein the first information and / or the second information is used for the terminal to select a target cell; The first information includes at least one of: The network device indicates the assistance information of the satellite accessed by the terminal; The assistance information of the satellite providing the same service for the terminal; The assistance information of the satellite providing continuous service for the terminal; The assistance information of the satellite registered by the terminal; The assistance information of the satellite that can recover the current communication process of the terminal; The assistance information of the satellite connected to the same ground network unit as the current service satellite of the terminal; And / or, The second information includes at least one of: The assistance information of the satellite of the neighboring cell; The assistance information of the satellite of the serving cell; The assistance information of the satellite of the predicted discontinuous coverage.

14. The information processing method according to claim 13, wherein The network device provides the terminal with the first information and / or the second information, comprising: The network device sends first signaling and / or second signaling to the terminal; wherein the first signaling carries the first information, and the second signaling carries the second information; Or, The network device sends first association information to the terminal; wherein the first association information is used to obtain the first information from the second information; Or, The network device sends second signaling to the terminal; wherein the second signaling carries the second information, and the first information is determined based on the second information when the network device works in a first network operation mode.

15. The information processing method of claim 13, further comprising at least one of the following: The network device sends first indication information to the terminal; and The first indication information is used to instruct the terminal to select a target cell according to the first information; The network device sends second indication information to the terminal; wherein the second indication information is used to instruct the terminal to select a target cell according to the second information; The network device works in a first network operation mode.

16. A terminal comprising a memory, a transceiver, and a processor; wherein The memory is used to store a computer program; the transceiver is used to transceive data under the control of the processor; and the processor is used to read the computer program in the memory and perform the following operations: Obtain first information and / or second information provided by a network device; Select a target cell according to the first information and / or the second information; The first information comprises at least one of the following: Auxiliary information of a satellite indicated by the network device for the terminal to access; Auxiliary information of a satellite providing the same service as the terminal; Auxiliary information of a satellite providing continuous service for the terminal; Auxiliary information of a satellite registered validly by the terminal; Auxiliary information of a satellite capable of resuming the current communication process of the terminal; Auxiliary information of a satellite connected to the same ground network unit as the currently serving satellite; And / or, The second information comprises at least one of the following: Auxiliary information of a neighboring satellite; Auxiliary information of a serving cell satellite; Auxiliary information of a satellite predicting non-continuous coverage.

17. The terminal of claim 16, wherein, The processor is used to read the computer program in the memory and perform the following operations: Determine the first information according to the second information; Select a target cell according to the first information.

18. The terminal of claim 17, wherein, The processor is used to read the computer program in the memory and perform the following operations: Receive first association information sent by the network device, and obtain the first information from the second information according to the first association information; Or, When it is determined that the network device works in a first network operation mode, determine the first information according to the second information.

19. The terminal of claim 16, wherein, The processor is used to read the computer program in the memory and perform the following operations: Receive first signaling and / or second signaling sent by the network device; wherein the first signaling carries the first information, and the second signaling carries the second information.

20. The terminal of claim 16, wherein, The processor is used to read the computer program in the memory and perform the following operations: When a first condition is met, select a target cell according to the first information; wherein the first condition comprises at least one of the following: The first information contains auxiliary information of at least one target satellite; The terminal acquires the first indication information; The cell from which the terminal acquires the first information is the cell from which the terminal last left the connected state; The terminal supports the first network operation mode; The network architecture of the network device is of a first architecture type; Within a valid time.

21. The terminal according to claim 16 or 20, wherein The processor is configured to read the computer program in the memory and perform the following operations: In a case where a second condition is met, selecting a target cell according to the second information; wherein the second condition comprises at least one of the following: The first information does not contain auxiliary information of any target satellite; The terminal does not acquire the first indication information; The terminal acquires the second indication information; The valid time is exceeded; The valid time is not within; The terminal does not support the first network operation mode; The network architecture of the network device is of a second architecture type; The terminal does not receive indication information indicating a target satellite.

22. The terminal according to any one of claims 16 to 21, wherein, The processor is configured to read the computer program in the memory and perform the following operations: Determining third information; wherein the third information is used to determine at least one of the following: Whether to trigger a connection establishment process of an access layer; Sending data packet content; Sending content of a non-access layer signaling; Length of a non-access layer timer; Operation mode of a non-access layer timer; Operation mode of an AS.

23. The terminal of claim 22, wherein, The third information comprises at least one of the following: Satellite identification information of the selected target cell; Satellite network architecture information of the selected target cell; Satellite operation mode information of the selected target cell; Satellite valid time information of the selected target cell; Satellite auxiliary information of the selected target cell.

24. The terminal according to any one of claims 16 to 21, wherein, In a case where the target cell is selected according to the second information or the satellite of the selected target cell does not match a target satellite, the processor is configured to read the computer program in the memory and perform at least one of the following operations: The selected target cell does not perform paging message listening; The selected target cell listens to system information modification notification.

25. The terminal according to any one of claims 16 to 21, wherein, In a case where the target cell is selected according to the first information or the satellite of the target cell matches a target satellite, the processor is configured to read the computer program in the memory and perform at least one of the following operations: The selected target cell performs paging message listening; The selected target cell listens to system information modification notification.

26. The terminal according to any one of claims 16 to 21, wherein, The processor is configured to read the computer program in the memory and perform the following operations: According to the indication information, determining whether to perform a first operation in the target cell; wherein the first operation comprises at least one of the following: a regular access layer operation, listening to a paging message, and initiating an access process.

27. The terminal according to any one of claims 16 to 21, wherein, The processor is configured to read the computer program in the memory and perform at least one of the following operations: In a case where the first cell is selected, storing first information provided by the first cell or updating first information already stored by the terminal to first information provided by the first cell; In a case where the terminal leaves the connected state from the second cell, storing first information provided by the second cell or updating first information already stored by the terminal to first information provided by the second cell; Based on an indication of high layer signaling, storing or updating the first information; deleting the first information stored in the terminal after a validity time of the first information stored in the terminal is exceeded; deleting the first information stored in the terminal in a case that the terminal accesses a target satellite.

28. A terminal, comprising: an obtaining unit, configured to obtain first information and / or second information provided by a network device; a first processing unit, configured to select a target cell according to the first information and / or the second information; wherein the first information comprises at least one of: auxiliary information of a satellite indicated by the network device for the terminal to access; auxiliary information of a satellite providing a same service as the terminal; auxiliary information of a satellite providing a continuous service for the terminal; auxiliary information of a satellite in which the terminal is registered validly; auxiliary information of a satellite capable of resuming a current communication process of the terminal; auxiliary information of a satellite connected to a same ground network unit as a current serving satellite of the terminal; and / or, the second information comprises at least one of: auxiliary information of a neighbor satellite; auxiliary information of a serving satellite; auxiliary information of a satellite in a predicted discontinuous coverage.

29. A network device, comprising a memory, a transceiver and a processor; wherein the memory is configured to store a computer program; the transceiver is configured to transceive data under control of the processor; and the processor is configured to read the computer program in the memory and perform the following operations: providing first information and / or second information for a terminal; wherein the first information and / or the second information is used for the terminal to select a target cell; wherein the first information comprises at least one of: auxiliary information of a satellite indicated by the network device for the terminal to access; auxiliary information of a satellite providing a same service as the terminal; auxiliary information of a satellite providing a continuous service for the terminal; auxiliary information of a satellite in which the terminal is registered validly; auxiliary information of a satellite capable of resuming a current communication process of the terminal; auxiliary information of a satellite connected to a same ground network unit as a current serving satellite of the terminal; and / or, the second information comprises at least one of: auxiliary information of a neighbor satellite; auxiliary information of a serving satellite; auxiliary information of a satellite in a predicted discontinuous coverage.

30. The network device of claim 29, wherein, the processor is configured to read the computer program in the memory and perform the following operations: sending first signaling and / or second signaling to the terminal; wherein the first signaling carries the first information, and the second signaling carries the second information; or, sending first association information to the terminal; wherein the first association information is used to obtain the first information from the second information; or, sending second signaling to the terminal; wherein the second signaling carries the second information, and the first information is determined based on the second information when the network device works in a first network operation mode.

31. The network device of claim 29, wherein, the processor is configured to read the computer program in the memory and perform at least one of the following operations: sending first indication information to the terminal; wherein the first indication information is used to instruct the terminal to select a target cell according to the first information; sending second indication information to the terminal; wherein the second indication information is used to instruct the terminal to select a target cell according to the second information; the network device works in a first network operation mode.

32. A network device, comprising: The providing unit is configured to provide the terminal with first information and / or second information; wherein the first information and / or the second information is used for the terminal to select a target cell; The first information comprises at least one of the following: auxiliary information of a satellite indicated by the network device for the terminal to access; auxiliary information of a satellite providing the same service for the terminal; auxiliary information of a satellite providing continuous service for the terminal; auxiliary information of a satellite in which the terminal is registered validly; auxiliary information of a satellite in which the current communication process of the terminal can be resumed; auxiliary information of a satellite connected to the same ground network unit as the current serving satellite; and / or, The second information comprises at least one of the following: auxiliary information of a neighboring satellite; auxiliary information of a serving satellite; auxiliary information of a satellite in which the terminal is registered validly; 33. A processor-readable storage medium, the processor-readable storage medium storing a computer program, the computer program being configured to cause the processor to perform the steps of the information processing method according to any one of claims 1 to 15.

Images