Information identification method, apparatus, device and storage medium

Abstract

Provided in the embodiments of the present application are an information identification method, an apparatus, a device and a storage medium. The method comprises: a network-side node transmits at least one of the following information for a terminal to identify information from different satellites: first indication information, the first indication information being used for indicating whether the terminal is in a PCI unchanged scenario, and / or time information about being in a PCI changed or unchanged scenario, and / or one or more divided geographic regions correspond to one PCI; first configuration information, the first configuration information being used for indicating a corresponding relationship between SSB configurations and satellites and / or a corresponding relationship between the SSB configurations and satellite beams; second configuration information, the second configuration information being used for indicating, when the same SSB configuration corresponds to different satellites, related information of a SSB transmitted by a satellite; and first auxiliary information, the first auxiliary information being used for indicating information related to satellites connected to the same ground base station.

Description

Information identification method, device, equipment and storage medium

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based on the Chinese patent application with application number 202311196958.8 and application date September 15, 2023, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby introduced into this application as a reference. Technical Field

[0003] The present application relates to the field of communication technology, and in particular to an information identification method, apparatus, device and storage medium. Background Art

[0004] In non-terrestrial network (NTN) technologies, the physical cell identity (PCI) unchanged solution is currently only supported in quasi-earth-fixed cell hard satellite switch (i.e., handover with non-overlapping satellite coverage) scenarios within a transparent forwarding architecture. Its applicability in soft satellite switch (i.e., handover with overlapping satellite coverage), dynamic (earth moving) scenarios, dual connectivity scenarios, and regenerative architectures remains to be addressed.

[0005] Summary of the Invention

[0006] In view of this, embodiments of the present application hope to provide an information identification method, apparatus, device and storage medium.

[0007] The technical solution of the embodiment of the present application is implemented as follows:

[0008] The present invention provides an information identification method, which is applied to a network-side node. The method includes:

[0009] Send at least one of the following information to enable the terminal to identify information from different satellites:

[0010] First indication information, where the first indication information is used to indicate whether the terminal is in a scenario where the physical cell identifier (PCI) remains unchanged, and / or time information of a scenario where the PCI changes or remains unchanged, and / or one or more divided geographical areas correspond to one PCI;

[0011] First configuration information, where the first configuration information is used to indicate a correspondence between a synchronization signal and physical broadcast channel block (SSB) configuration and a satellite and / or a correspondence between an SSB configuration and a satellite beam;

[0012] Second configuration information, where the second configuration information is used to indicate relevant information about the SSB sent by the satellite when the same SSB configuration corresponds to different satellites;

[0013] The first auxiliary information is used to indicate satellite-related information connected to the same ground base station.

[0014] In this embodiment of the present application, the first indication information includes at least one of the following information:

[0015] Indication that the terminal is in a PCI unchanged scenario;

[0016] The effective time of the terminal in the PCI unchanged scenario.

[0017] In the embodiment of the present application, the second configuration information includes: a correspondence between the same SSB configuration and different satellites; and at least one of the following information:

[0018] The start time of SSB transmission by the satellite;

[0019] The effective duration of the SSB;

[0020] the beam direction of transmitting the SSB;

[0021] Activate the configuration of the fractional bandwidth (BWP).

[0022] In this embodiment of the present application, the first auxiliary information includes at least one of the following information:

[0023] Information on the number of satellites connected to the same ground base station;

[0024] Satellite ephemeris information connected to the same ground base station;

[0025] Satellite time information connected to the same ground base station;

[0026] Satellite beam information connected to the same ground base station.

[0027] In the embodiment of the present application, when the number of terminals supporting the unchanged PCI function within the coverage area where the PCI remains unchanged is less than a threshold, the method further includes:

[0028] Sending system information; the system information carries a virtual PCI, the virtual PCI is used for terminals that do not support the PCI unchanged function to identify different satellites corresponding to the same PCI;

[0029] Among them, the same PCI corresponds to multiple different virtual PCIs, and different virtual PCIs correspond to different satellites.

[0030] In the embodiment of the present application, when one or more divided geographical areas correspond to one PCI, the method further includes:

[0031] A primary synchronization signal PSS and a secondary synchronization signal SSS corresponding to the geographical area are sent, so that the terminal can determine the PCI corresponding to the geographical area.

[0032] In the embodiment of the present application, when the network-side node is a centralized unit CU, the method further includes:

[0033] The CU controls the same key, and multiple distribution units DU connected to the same CU cover the same corresponding PCI;

[0034] The first DU sends to the second DU information related to the preset number of data packets and stored data packet information that the first DU last sent to the second DU through the CU forwarding or through the first interface configured between DUs; wherein,

[0035] The first DU is a DU that currently provides services to the terminal, and the second DU is a DU that will next provide services to the terminal.

[0036] The present application also provides an information identification method, which is applied to a terminal. The method includes:

[0037] receiving at least one of the following information, and identifying information from different satellites based on the information:

[0038] First indication information, where the first indication information is used to indicate whether the terminal is in a scenario where the physical cell identifier (PCI) remains unchanged, and / or time information of a scenario where the PCI changes or remains unchanged, and / or one or more divided geographical areas correspond to one PCI;

[0039] First configuration information, where the first configuration information is used to indicate a correspondence between a synchronization signal and physical broadcast channel block (SSB) configuration and a satellite and / or a correspondence between an SSB configuration and a satellite beam;

[0040] Second configuration information, where the second configuration information is used to indicate relevant information about the SSB sent by the satellite when the same SSB configuration corresponds to different satellites;

[0041] The first auxiliary information is used to indicate satellite-related information connected to the same ground base station.

[0042] In the embodiment of the present application, when the terminal does not support the PCI unchanged function within the coverage range where the PCI remains unchanged, the method further includes:

[0043] Receive system information; the system information carries a virtual PCI, the virtual PCI is used for terminals that do not support the PCI unchanged function to identify different satellites corresponding to the same PCI;

[0044] Among them, the same PCI corresponds to multiple different virtual PCIs, and different virtual PCIs correspond to different satellites.

[0045] In the embodiment of the present application, when the terminal does not support the PCI unchanged function within the coverage range where the PCI remains unchanged, the method further includes:

[0046] In the event that the terminal loses communication connection with the first satellite, attempting to restore the connection through beam failure recovery (BFR);

[0047] A second satellite corresponding to the same PCI as the first satellite is detected, and the network is re-accessed through the second satellite.

[0048] In the embodiment of the present application, when the terminal does not support the PCI unchanged function within the coverage range where the PCI remains unchanged, the method further includes:

[0049] After the terminal loses communication connection with the first satellite or before the out-of-service time of the first satellite times out, the terminal performs a measurement operation;

[0050] Access a second satellite corresponding to the same PCI as the first satellite through cell selection or cell reselection.

[0051] In the embodiment of the present application, when the terminal does not support the PCI unchanged function within the coverage range where the PCI remains unchanged, the method further includes:

[0052] In the case where the terminal loses communication connection with the first satellite, the terminal accesses a network corresponding to a second satellite having the same PCI as that of the first satellite through intra-cell handover.

[0053] The embodiment of the present application further provides a network node, comprising: a first communication interface and a first processor; wherein,

[0054] The first communication interface is configured to send at least one of the following information for the terminal to identify information from different satellites:

[0055] First indication information, where the first indication information is used to indicate whether the terminal is in a scenario where the physical cell identifier (PCI) remains unchanged, and / or time information of a scenario where the PCI changes or remains unchanged, and / or one or more divided geographical areas correspond to one PCI;

[0056] First configuration information, where the first configuration information is used to indicate a correspondence between a synchronization signal and physical broadcast channel block (SSB) configuration and a satellite and / or a correspondence between an SSB configuration and a satellite beam;

[0057] Second configuration information, where the second configuration information is used to indicate relevant information about the SSB sent by the satellite when the same SSB configuration corresponds to different satellites;

[0058] The first auxiliary information is used to indicate satellite-related information connected to the same ground base station.

[0059] The embodiment of the present application further provides a terminal, comprising: a second communication interface and a second processor; wherein,

[0060] The second communication interface is configured to receive at least one of the following information, and identify information from different satellites based on the information:

[0061] First indication information, where the first indication information is used to indicate whether the terminal is in a scenario where the physical cell identifier (PCI) remains unchanged, a corresponding relationship and / or time information of a scenario where the PCI changes or remains unchanged, and / or one or more divided geographical areas correspond to one PCI;

[0062] First configuration information, where the first configuration information is used to indicate a correspondence between synchronization signal and physical broadcast channel block (SSB) configurations and satellites and / or between SSB configurations and satellite beams;

[0063] Second configuration information, where the second configuration information is used to indicate relevant information about the SSB sent by the satellite when the same SSB configuration corresponds to different satellites;

[0064] The first auxiliary information is used to indicate satellite-related information connected to the same ground base station.

[0065] An embodiment of the present application further provides a network node, comprising: a first processor and a first memory for storing a computer program that can be run on the processor,

[0066] Wherein, the first processor is used to execute the steps of the above method when running the computer program.

[0067] An embodiment of the present application further provides a terminal, comprising: a second processor and a second memory for storing a computer program that can be run on the processor,

[0068] The second processor is configured to execute the steps of the above method when running the computer program.

[0069] An embodiment of the present application further provides a storage medium on which a computer program is stored, and when the computer program is executed by a processor, the steps of the above method are implemented.

[0070] The information identification method, apparatus, device and storage medium provided by the embodiments of the present application, the network side node sends at least one of the following information for the terminal to identify information from different satellites: first indication information, the first indication information is used to indicate whether the terminal is in a PCI unchanged scenario, and / or time information in a PCI changing or unchanged scenario, and / or one or more divided geographical areas corresponding to a PCI; first configuration information, the first configuration information is used to indicate the correspondence between the SSB configuration and the satellite and / or the correspondence between the SSB configuration and the satellite beam; second configuration information, the second configuration information is used to indicate the relevant information of the SSB sent by the satellite when the same SSB configuration corresponds to different satellites; first auxiliary information, the first auxiliary information is used to indicate the relevant information of the satellite connected to the same ground base station. The embodiments of the present application can realize the PCI unchanged solution in various scenarios during the NTN communication process through different information sent by the network side node. BRIEF DESCRIPTION OF THE DRAWINGS

[0071] FIG1 is a flow chart of the information identification method according to an embodiment of the present application;

[0072] FIG2 is a second flow chart of the information identification method according to an embodiment of the present application;

[0073] FIG3 is a structural diagram of the information identification device according to an embodiment of the present application;

[0074] FIG4 is a second structural diagram of the information identification device according to an embodiment of the present application;

[0075] FIG5 is a schematic diagram of a network node structure according to an embodiment of the present application;

[0076] FIG6 is a schematic diagram of the terminal structure described in an embodiment of the present application. DETAILED DESCRIPTION

[0077] The present application is described below in conjunction with the accompanying drawings and embodiments. It will be understood that the specific embodiments described herein are merely intended to explain the related applications and are not intended to limit the present application. It should also be noted that, for ease of description, only portions relevant to the related applications are shown in the accompanying drawings. It should be noted that, unless there is a conflict, the embodiments and features in the embodiments of the present application may be combined with one another. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0078] The present application provides an information identification method, as shown in FIG1 , which is applied to a network-side node. The method includes:

[0079] Step 101: Send at least one of the following information for the terminal to identify information from different satellites:

[0080] First indication information, where the first indication information is used to indicate whether the terminal is in a scenario where a physical cell identifier (PCI) remains unchanged, and / or time information of a scenario where the PCI changes or remains unchanged, and / or one or more divided geographical areas correspond to one PCI;

[0081] First configuration information, where the first configuration information is used to indicate a correspondence between a synchronization signal and a physical broadcast channel block (SSB) configuration and a satellite and / or a correspondence between an SSB configuration and a satellite beam;

[0082] Second configuration information, where the second configuration information is used to indicate relevant information about the SSB sent by the satellite when the same SSB configuration corresponds to different satellites;

[0083] The first auxiliary information is used to indicate satellite-related information connected to the same ground base station.

[0084] In practical applications, the terminal may be referred to as a UE or a user. The network-side node may include any of the following: a base station, a satellite, a centralized unit (CU), or a distributed unit (DU). The embodiments of the present application are applicable to PCI-invariant solutions in various scenarios (e.g., transparent forwarding architecture scenarios and regeneration architecture scenarios).

[0085] In one embodiment of the present application, the first indication information includes at least one of the following information:

[0086] Indication that the terminal is in a PCI unchanged scenario;

[0087] The effective time of the terminal in the PCI unchanged scenario.

[0088] In actual application, for a transparent forwarding architecture, the terminal sees multiple satellites at the same time or simultaneously communicates with multiple satellites (multiple satellites are connected to the same base station on the ground), and the terminal is in a PCI unchanged scenario: the network-side node sends first indication information to the terminal; wherein, the effective time of the terminal in the PCI unchanged scenario can be indicated in any of the following ways: the start time + duration of the PCI changing or unchanged scenario, the absolute start and end time of the PCI changing or unchanged scenario (Coordinated Universal Time (UTC) t1, UTC t2), or the relative time of the PCI changing or unchanged scenario;

[0089] Upon receiving the first indication, the terminal specifies the subsequent actions corresponding to the PCI change or unchanged scenario. For example, if the PCI remains unchanged, synchronization to the new satellite is performed instead of handover. If the PCI changes, a handover process is performed. The specific synchronization or handover process is related technology and is not described in detail here.

[0090] In one embodiment, in actual application, the network-side node sends first configuration information to indicate the correspondence between the synchronization signal and physical broadcast channel block (SSB) configuration and the satellite and / or the correspondence between the SSB configuration and the satellite beam. Different SSB configurations (including one or more SSB indexes) match different satellites or different beams. Specifically, the SSB configuration and the satellite / beam configuration are associated, for example, satellite ID1 and / or beam1 correspond to SSB configuration 1 (set1), satellite ID2 and / or beam2 correspond to SSB set2, and so on.

[0091] After the terminal receives the correspondence between the SSB configuration (set) and the satellite or the configuration association relationship of the beam in the above-mentioned first configuration information, it uses the corresponding SSB configuration to receive network side information under the coverage of different satellites or beams.

[0092] In one embodiment of the present application, the second configuration information includes: a correspondence between the same SSB configuration and different satellites; and at least one of the following information:

[0093] The start time of SSB transmission by the satellite;

[0094] The effective duration of the SSB;

[0095] the beam direction of transmitting the SSB;

[0096] Activate the configuration of the fractional bandwidth (BWP).

[0097] In actual application, the network side node configures the same SSB configuration corresponding to different satellites in the second configuration information, and the network side time-division schedules different satellites to send SSBs. It also configures at least one of the following information for the terminal: the start time of the satellite sending (broadcasting) SSB (used to distinguish between serving, incoming, and departing satellites), the effective duration of the SSB (used to distinguish between serving, incoming, and departing satellites), the beam direction of the SSB, and the activated BWP configuration (used for the terminal to detect SSB on different activated BWPs);

[0098] After receiving the above-mentioned second configuration information, the terminal receives network side information through the same SSB configuration (set) according to the corresponding time information (the start time of the satellite sending SSB and / or the effective duration of the SSB) within the coverage range of different satellites or beams.

[0099] In one embodiment of the present application, the first auxiliary information includes at least one of the following information:

[0100] Information on the number of satellites connected to the same ground base station;

[0101] Satellite ephemeris information connected to the same ground base station;

[0102] Satellite time information connected to the same ground base station;

[0103] Satellite beam information connected to the same ground base station.

[0104] In actual application, the network-side node (such as a base station) sends (broadcast or multicast) first auxiliary information, including at least one of the following information: the number of satellites connected to the same ground base station, the ephemeris information of satellites connected to the same ground base station, the time information of satellites connected to the same ground base station, and the beam information of satellites connected to the same ground base station. The satellite time information includes at least one of the following: epochTime, satellite service start time, and satellite service stop time; the satellite beam information includes at least one of the following information: beam coverage radius, change relative to the previous satellite beam coverage radius, beam angle (such as the elevation angle on the UE side or gateway side), and beam angle change;

[0105] Based on the first auxiliary information, the terminal can implicitly obtain the rough duration of the PCI change or unchanged scenario (using satellite number information, satellite ephemeris information, time-related information, beam information), can promptly access new satellites to obtain services (using time information), and can promptly adjust the beam reception direction (using beam angle-related information).

[0106] In one embodiment of the present application, when the number of terminals supporting the unchanged PCI function within the coverage area where the PCI remains unchanged is less than a threshold, the method further includes:

[0107] Sending system information; the system information carries a virtual PCI, the virtual PCI is used for terminals that do not support the PCI unchanged function to identify different satellites corresponding to the same PCI;

[0108] Among them, the same PCI corresponds to multiple different virtual PCIs, and different virtual PCIs correspond to different satellites.

[0109] It should be noted that the system information also includes the first indication information, the first configuration information, the second configuration information, and the first auxiliary information. In the embodiment of the present application, a virtual PCI is also introduced in the system information, such as vPCI 1 corresponding to satellite 1, and vPCI 2 corresponding to satellite 2, for UEs that do not support unchanged PCI to distinguish different satellites corresponding to the same actual PCI.

[0110] In actual application, the network side can determine whether to introduce virtual PCI based on the reporting of UE capabilities. If the number of UEs supporting the PCI unchanged function exceeds a certain threshold, the network side indicates that the terminal is in the PCI unchanged scenario through the first indication information, otherwise it indicates that the terminal is in the PCI changed scenario; for the latter, virtual PCI is introduced in the system information, for example, vPCI 1 corresponds to satellite 1, and vPCI 2 corresponds to satellite 2.

[0111] In one embodiment of the present application, when one or more divided geographical areas correspond to one PCI, the method further includes:

[0112] A primary synchronization signal (PSS) and a secondary synchronization signal (SSS) corresponding to the geographical area are sent, so that the terminal can determine the PCI corresponding to the geographical area.

[0113] In actual application, PCI based on actual geographical area information (can better solve the scenario of rapid cell change, such as earth moving cell case, but not limited to this scenario): First, the ground (actual geographical area) is divided into areas, each area or every few areas corresponds to a PCI, and the network side sends the corresponding PSS / SSS according to the PCI division (Note: PCI calculation formula: N(1)ID = Secondary Synchronization Signal (SSS), range is {0, 1…, 335}; N(2)ID = Primary Synchronization Signal (PSS), range is {0, 1, 2}); Secondly, satellites connected to the same base station will forward the primary / secondary synchronization signal PSS / SSS of the corresponding area after moving to each area.

[0114] In one embodiment of the present application, when the network-side node is a centralized unit CU, the method further includes:

[0115] The CU controls the same key, and multiple distribution units DU connected to the same CU cover the same corresponding PCI;

[0116] The first DU sends to the second DU information related to the preset number of data packets and stored data packet information that the first DU last sent to the second DU through the CU forwarding or through the first interface configured between DUs; wherein,

[0117] The first DU is a DU that currently provides services to the terminal, and the second DU is a DU that will next provide services to the terminal.

[0118] In the embodiment of the present application, the first interface is a newly established interface between DUs and is used for data transmission between DUs.

[0119] In actual application, the embodiment of the present application is applicable to the regeneration architecture, such as: the distributed unit on board (DU on board) scenario, while the base station on board (gNB on board) scenario is not applicable to the PCI unchanged scenario. The key is the key contained in the PDCP layer encryption transmission process; the data packet can be a data packet transmitted (forwarded) between DUs. Here, the reason for sending the last preset number (the last few) of data packet related information and stored data packet information is because some data packets may not have had time to be sent out by the first DU and are still in the buffer of the first DU. This part of the data packets also needs to be forwarded; the last few data packets sent are forwarded to the second DU, and the second DU sends them again to ensure the success rate of data packet transmission.

[0120] The present application also provides an information identification method, as shown in FIG2 , which is applied to a terminal. The method includes:

[0121] Step 201: Receive at least one of the following information, and identify information from different satellites based on the information:

[0122] First indication information, where the first indication information is used to indicate whether the terminal is in a scenario where the physical cell identifier (PCI) remains unchanged, and / or time information of a scenario where the PCI changes or remains unchanged, and / or one or more divided geographical areas correspond to one PCI;

[0123] First configuration information, where the first configuration information is used to indicate a correspondence between a synchronization signal and physical broadcast channel block (SSB) configuration and a satellite and / or a correspondence between an SSB configuration and a satellite beam;

[0124] Second configuration information, where the second configuration information is used to indicate relevant information about the SSB sent by the satellite when the same SSB configuration corresponds to different satellites;

[0125] The first auxiliary information is used to indicate satellite-related information connected to the same ground base station.

[0126] In actual application, the terminal may be referred to as a UE or a user. The embodiment of the present application is applicable to a PCI unchanged solution in various scenarios (eg, a transparent forwarding architecture scenario and a regeneration architecture scenario).

[0127] In the embodiment of the present application, when the terminal does not support the PCI unchanged function within the coverage range where the PCI remains unchanged, the method further includes:

[0128] Receive system information; the system information carries a virtual PCI, the virtual PCI is used for terminals that do not support the PCI unchanged function to identify different satellites corresponding to the same PCI;

[0129] Among them, the same PCI corresponds to multiple different virtual PCIs, and different virtual PCIs correspond to different satellites.

[0130] In the embodiment of the present application, when the terminal does not support the PCI unchanged function within the coverage range where the PCI remains unchanged, the method further includes:

[0131] In the event that the terminal loses communication connection with the first satellite, attempting to restore the connection through beam failure recovery (BFR);

[0132] A second satellite corresponding to the same PCI as the first satellite is detected, and the network is re-accessed through the second satellite.

[0133] In actual applications, if a terminal that does not support the PCI unchanged function loses communication with the previous satellite (the first satellite), it attempts to restore the connection through beam failure recovery (BFR) and detects a satellite with the same PCI (actually corresponding to a new satellite, such as the second satellite) to reconnect to the network.

[0134] In the embodiment of the present application, when the terminal does not support the PCI unchanged function within the coverage range where the PCI remains unchanged, the method further includes:

[0135] After the terminal loses communication connection with the first satellite or before the out-of-service time of the first satellite times out, the terminal performs a measurement operation;

[0136] Access a second satellite corresponding to the same PCI as the first satellite through cell selection or cell reselection.

[0137] In actual application, for a terminal that does not support the PCI unchanged function, after the previous satellite (first satellite) loses the communication connection or before the out-of-service time (t-service) of the first satellite expires, the terminal performs a measurement operation and can access a new satellite (second satellite) through cell selection or reselection.

[0138] In the embodiment of the present application, when the terminal does not support the PCI unchanged function within the coverage range where the PCI remains unchanged, the method further includes:

[0139] When the terminal loses communication connection with the first satellite, the terminal accesses a network corresponding to a second satellite having the same PCI as that of the first satellite through intra-cell HO.

[0140] In order to implement the method of the network-side node in the embodiment of the present application, the embodiment of the present application further provides an information identification device, as shown in FIG3 , which is applied to the network-side node and includes:

[0141] The first communication unit 301 is configured to send at least one of the following information for the terminal to identify information from different satellites:

[0142] First indication information, where the first indication information is used to indicate whether the terminal is in a scenario where the physical cell identifier (PCI) remains unchanged, and / or time information of a scenario where the PCI changes or remains unchanged, and / or one or more divided geographical areas correspond to one PCI;

[0143] First configuration information, where the first configuration information is used to indicate a correspondence between a synchronization signal and physical broadcast channel block (SSB) configuration and a satellite and / or a correspondence between an SSB configuration and a satellite beam;

[0144] Second configuration information, where the second configuration information is used to indicate relevant information about the SSB sent by the satellite when the same SSB configuration corresponds to different satellites;

[0145] The first auxiliary information is used to indicate satellite-related information connected to the same ground base station.

[0146] In this embodiment of the present application, the first indication information includes at least one of the following information:

[0147] Indication that the terminal is in a PCI unchanged scenario;

[0148] The effective time of the terminal in the PCI unchanged scenario.

[0149] In the embodiment of the present application, the second configuration information includes: a correspondence between the same SSB configuration and different satellites; and at least one of the following information:

[0150] The start time of SSB transmission by the satellite;

[0151] The effective duration of the SSB;

[0152] the beam direction of transmitting the SSB;

[0153] Activate the configuration of the fractional bandwidth (BWP).

[0154] In this embodiment of the present application, the first auxiliary information includes at least one of the following information:

[0155] Information on the number of satellites connected to the same ground base station;

[0156] Satellite ephemeris information connected to the same ground base station;

[0157] Satellite time information connected to the same ground base station;

[0158] Satellite beam information connected to the same ground base station.

[0159] In the embodiment of the present application, when the number of terminals supporting the unchanged PCI function within the coverage area of ​​the PCI is less than the threshold, the first communication unit 301 is further configured to:

[0160] Sending system information; the system information carries a virtual PCI, the virtual PCI is used for terminals that do not support the PCI unchanged function to identify different satellites corresponding to the same PCI;

[0161] Among them, the same PCI corresponds to multiple different virtual PCIs, and different virtual PCIs correspond to different satellites.

[0162] In the embodiment of the present application, when one or more divided geographical areas correspond to one PCI, the first communication unit 301 is further configured to:

[0163] The PSS and SSS corresponding to the geographical area are sent, so that the terminal can determine the PCI corresponding to the geographical area.

[0164] In the embodiment of the present application, when the network side node is a centralized unit CU, the first communication unit 301 is also used to

[0165] Controlling the same key, multiple distribution units DU connected to the same CU cover the same corresponding PCI;

[0166] The first DU sends to the second DU information related to a preset number of data packets and stored data packet information that the first DU last sent to the second DU through the CU forwarding or through the first interface configured between DUs; wherein,

[0167] The first DU is a DU that currently provides services to the terminal, and the second DU is a DU that will next provide services to the terminal.

[0168] In actual application, the first communication unit 301 can be implemented by a communication interface in the information identification device.

[0169] It should be noted that the information identification device provided in the above embodiment is only illustrated by the division of the above program modules during communication. In actual applications, the above processing can be assigned to different program modules as needed, that is, the internal structure of the device can be divided into different program modules to complete all or part of the above-described processing. In addition, the device and method embodiments provided in the above embodiment are based on the same concept. The specific implementation process is detailed in the method embodiment and will not be repeated here.

[0170] In order to implement the method of the terminal in the embodiment of the present application, the embodiment of the present application further provides an information identification device, as shown in FIG4 , which is applied to the terminal and includes:

[0171] The second communication unit 401 is configured to receive at least one of the following information and identify information from different satellites based on the information:

[0172] First indication information, where the first indication information is used to indicate whether the terminal is in a scenario where the physical cell identifier (PCI) remains unchanged, and / or time information of a scenario where the PCI changes or remains unchanged, and / or one or more divided geographical areas correspond to one PCI;

[0173] First configuration information, where the first configuration information is used to indicate a correspondence between a synchronization signal and physical broadcast channel block (SSB) configuration and a satellite and / or a correspondence between an SSB configuration and a satellite beam;

[0174] Second configuration information, where the second configuration information is used to indicate relevant information about the SSB sent by the satellite when the same SSB configuration corresponds to different satellites;

[0175] The first auxiliary information is used to indicate satellite-related information connected to the same ground base station.

[0176] In the embodiment of the present application, when the terminal does not support the PCI unchanged function within the coverage area of ​​the PCI, the second communication unit 401 is further used to

[0177] Receive system information; the system information carries a virtual PCI, the virtual PCI is used for terminals that do not support the PCI unchanged function to identify different satellites corresponding to the same PCI;

[0178] Among them, the same PCI corresponds to multiple different virtual PCIs, and different virtual PCIs correspond to different satellites.

[0179] In the embodiment of the present application, when the terminal does not support the PCI unchanged function within the coverage area of ​​the PCI, the second communication unit 401 is further used to

[0180] In the event that the terminal loses communication connection with the first satellite, attempting to restore the connection through beam failure recovery (BFR);

[0181] A second satellite corresponding to the same PCI as the first satellite is detected, and the network is re-accessed through the second satellite.

[0182] In the embodiment of the present application, when the terminal does not support the PCI unchanged function within the coverage area of ​​the PCI, the second communication unit 401 is further used to

[0183] After the terminal loses communication connection with the first satellite or before the out-of-service time of the first satellite times out, the terminal performs a measurement operation;

[0184] Access a second satellite corresponding to the same PCI as the first satellite through cell selection or cell reselection.

[0185] In the embodiment of the present application, when the terminal does not support the PCI unchanged function within the coverage area of ​​the PCI, the second communication unit 401 is further used to

[0186] In the case where the terminal loses communication connection with the first satellite, the terminal accesses a network corresponding to a second satellite having the same PCI as that of the first satellite through intra-cell handover.

[0187] In actual application, the second communication unit 401 can be implemented by a communication interface in the information identification device.

[0188] It should be noted that the information identification device provided in the above embodiment is only illustrated by the division of the above program modules during communication. In actual applications, the above processing can be assigned to different program modules as needed, that is, the internal structure of the device can be divided into different program modules to complete all or part of the above-described processing. In addition, the device and method embodiments provided in the above embodiment are based on the same concept. The specific implementation process is detailed in the method embodiment and will not be repeated here.

[0189] Based on the hardware implementation of the above program modules, and in order to implement the network side method of the embodiment of the present application, the embodiment of the present application further provides a network node, as shown in FIG5 , the network node 500 includes:

[0190] The first communication interface 501 is capable of exchanging information with the terminal and / or other nodes on the network side;

[0191] a first processor 502 connected to the first communication interface 501 to implement information interaction with the terminal and / or other nodes on the network side, and configured to execute the methods provided by one or more technical solutions of the above-mentioned network node when running a computer program;

[0192] A first memory 503 , on which the computer program is stored.

[0193] Specifically, the first communication interface 501 is used to send at least one of the following information for the terminal to identify information from different satellites:

[0194] First indication information, where the first indication information is used to indicate whether the terminal is in a scenario where the physical cell identifier (PCI) remains unchanged, and / or time information of a scenario where the PCI changes or remains unchanged, and / or one or more divided geographical areas correspond to one PCI;

[0195] First configuration information, where the first configuration information is used to indicate a correspondence between a synchronization signal and physical broadcast channel block (SSB) configuration and a satellite and / or a correspondence between an SSB configuration and a satellite beam;

[0196] Second configuration information, where the second configuration information is used to indicate relevant information about the SSB sent by the satellite when the same SSB configuration corresponds to different satellites;

[0197] The first auxiliary information is used to indicate satellite-related information connected to the same ground base station.

[0198] In this embodiment of the present application, the first indication information includes at least one of the following information:

[0199] Indication that the terminal is in a PCI unchanged scenario;

[0200] The effective time of the terminal in the PCI unchanged scenario.

[0201] In the embodiment of the present application, the second configuration information includes: a correspondence between the same SSB configuration and different satellites; and at least one of the following information:

[0202] The start time of SSB transmission by the satellite;

[0203] The effective duration of the SSB;

[0204] the beam direction of transmitting the SSB;

[0205] Activate the configuration of the fractional bandwidth (BWP).

[0206] In this embodiment of the present application, the first auxiliary information includes at least one of the following information:

[0207] Information on the number of satellites connected to the same ground base station;

[0208] Satellite ephemeris information connected to the same ground base station;

[0209] Satellite time information connected to the same ground base station;

[0210] Satellite beam information connected to the same ground base station.

[0211] In the embodiment of the present application, when the number of terminals supporting the unchanged PCI function within the coverage area of ​​the PCI is less than the threshold, the first communication interface 501 is also used to

[0212] Sending system information; the system information carries a virtual PCI, the virtual PCI is used for terminals that do not support the PCI unchanged function to identify different satellites corresponding to the same PCI;

[0213] Among them, the same PCI corresponds to multiple different virtual PCIs, and different virtual PCIs correspond to different satellites.

[0214] In the embodiment of the present application, when one or more divided geographical areas correspond to one PCI, the first communication interface 501 is also used to

[0215] The PSS and SSS corresponding to the geographical area are sent, so that the terminal can determine the PCI corresponding to the geographical area.

[0216] In the embodiment of the present application, when the network side node is a centralized unit CU, the first communication interface 501 is also used to

[0217] Controlling the same key, multiple distribution units DU connected to the same CU cover the same corresponding PCI;

[0218] The first DU sends to the second DU information related to a preset number of data packets and stored data packet information that the first DU last sent to the second DU through the CU forwarding or through the first interface configured between DUs; wherein,

[0219] The first DU is a DU that currently provides services to the terminal, and the second DU is a DU that will next provide services to the terminal.

[0220] It should be noted that the specific processing process of the first communication interface 501 and the first processor 502 can be understood by referring to the above method, and will not be repeated here.

[0221] Of course, in actual applications, the various components in network node 500 are coupled together via bus system 504. It will be appreciated that bus system 504 is used to enable communication between these components. In addition to a data bus, bus system 504 also includes a power bus, a control bus, and a status signal bus. However, for clarity, in FIG5 , all of these buses are labeled as bus system 504.

[0222] The first memory 503 in the embodiment of the present application is used to store various types of data to support the operation of the network node 500. Examples of such data include: any computer program used to operate on the network node 500.

[0223] The methods disclosed in the above embodiments of the present application can be applied to the first processor 502 or implemented by the first processor 502. The first processor 502 may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method can be completed by hardware integrated logic circuits in the first processor 502 or instructions in software form. The above first processor 502 may be a general-purpose processor, a digital signal processor (DSP), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The first processor 502 can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of the present application can be directly implemented as being executed by a hardware decoding processor, or can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium located in the first memory 503. The first processor 502 reads the information in the first memory 503 and completes the steps of the above method in combination with its hardware.

[0224] In an exemplary embodiment, the network node 500 may be implemented by one or more application-specific integrated circuits (ASICs), DSPs, programmable logic devices (PLDs), complex programmable logic devices (CPLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers (MCUs), microprocessors, or other electronic components to perform the aforementioned method.

[0225] Based on the hardware implementation of the above program modules, and in order to implement the method on the terminal side of the embodiment of the present application, the embodiment of the present application further provides a terminal, as shown in FIG6 , the terminal 600 includes:

[0226] The second communication interface 601 is capable of exchanging information with other nodes on the network side;

[0227] A second processor 602 is connected to the second communication interface 601 to implement information exchange with other nodes on the network side, and is used to execute the methods provided by one or more technical solutions on the terminal side when running a computer program;

[0228] The second memory 603 , on which the computer program is stored.

[0229] Specifically, the second communication interface 601 is configured to receive at least one of the following information, and identify information from different satellites based on the information:

[0230] First indication information, where the first indication information is used to indicate whether the terminal is in a scenario where the physical cell identifier (PCI) remains unchanged, and / or time information of a scenario where the PCI changes or remains unchanged, and / or one or more divided geographical areas correspond to one PCI;

[0231] First configuration information, where the first configuration information is used to indicate a correspondence between a synchronization signal and physical broadcast channel block (SSB) configuration and a satellite and / or a correspondence between an SSB configuration and a satellite beam;

[0232] Second configuration information, where the second configuration information is used to indicate relevant information about the SSB sent by the satellite when the same SSB configuration corresponds to different satellites;

[0233] The first auxiliary information is used to indicate satellite-related information connected to the same ground base station.

[0234] In the embodiment of the present application, when the terminal does not support the PCI unchanged function within the coverage area of ​​the PCI, the second communication interface 601 is also used to

[0235] Receive system information; the system information carries a virtual PCI, the virtual PCI is used for terminals that do not support the PCI unchanged function to identify different satellites corresponding to the same PCI;

[0236] Among them, the same PCI corresponds to multiple different virtual PCIs, and different virtual PCIs correspond to different satellites.

[0237] In the embodiment of the present application, when the terminal does not support the PCI unchanged function within the coverage area of ​​the PCI, the second communication interface 601 is also used to

[0238] In the event that the terminal loses communication connection with the first satellite, attempting to restore the connection through beam failure recovery (BFR);

[0239] A second satellite corresponding to the same PCI as the first satellite is detected, and the network is re-accessed through the second satellite.

[0240] In the embodiment of the present application, when the terminal does not support the PCI unchanged function within the coverage area of ​​the PCI, the second communication interface 601 is also used to

[0241] After the terminal loses communication connection with the first satellite or before the out-of-service time of the first satellite times out, the terminal performs a measurement operation;

[0242] Access a second satellite corresponding to the same PCI as the first satellite through cell selection or cell reselection.

[0243] In the embodiment of the present application, when the terminal does not support the PCI unchanged function within the coverage area of ​​the PCI, the second communication interface 601 is also used to

[0244] In the case where the terminal loses communication connection with the first satellite, the terminal accesses a network corresponding to a second satellite having the same PCI as that of the first satellite through intra-cell handover.

[0245] It should be noted that the specific processing process of the second communication interface 601 and the second processor 602 can be understood by referring to the above method, and will not be repeated here.

[0246] Of course, in actual use, the various components in terminal 600 are coupled together via bus system 604. It will be appreciated that bus system 604 is used to enable communication between these components. In addition to a data bus, bus system 604 also includes a power bus, a control bus, and a status signal bus. However, for clarity, in FIG6 , all of these buses are labeled as bus system 604.

[0247] The second memory 603 in the embodiment of the present application is used to store various types of data to support the operation of the terminal 600. Examples of such data include: any computer program used to operate on the terminal 600.

[0248] The methods disclosed in the above embodiments of the present application can be applied to the second processor 602 or implemented by the second processor 602. The second processor 602 may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method can be completed by the hardware integrated logic circuit in the second processor 602 or by instructions in the form of software. The above second processor 602 may be a general-purpose processor, a digital signal processor (DSP), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The second processor 602 can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor can be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium located in the second memory 603. The second processor 602 reads the information in the second memory 603 and completes the steps of the above method in combination with its hardware.

[0249] In an exemplary embodiment, the terminal 600 can be implemented by one or more application-specific integrated circuits (ASICs), DSPs, programmable logic devices (PLDs), complex programmable logic devices (CPLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers (MCUs), microprocessors, or other electronic components to execute the aforementioned method.

[0250] In an exemplary embodiment, the present application also provides a storage medium, namely, a computer storage medium, specifically a computer-readable storage medium, which includes, for example, a first memory 503 storing a computer program. The computer program can be executed by the first processor 502 of the network node 500 to complete the steps of the aforementioned network node-side method. For another example, the present application also includes a second memory 603 storing a computer program. The computer program can be executed by the second processor 602 of the terminal 600 to complete the steps of the aforementioned terminal-side method. The computer-readable storage medium can be a memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface storage, optical disk, or CD-ROM.

[0251] It should be noted that: "first", "second", etc. are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0252] In addition, the technical solutions described in the embodiments of the present application can be arbitrarily combined without conflict.

[0253] The above description is merely a preferred embodiment of the present application and is not intended to limit the scope of protection of the present application.

Claims

1. An information identification method, characterized in that: Applied to a network-side node, the method includes: Send at least one of the following information for the terminal to identify information from different satellites: First indication information, where the first indication information is used to indicate whether the terminal is in a scenario where the physical cell identifier PCI remains unchanged, and / or time information of a scenario where the PCI changes or remains unchanged, and / or one or more divided geographical areas correspond to one PCI; First configuration information, where the first configuration information is used to indicate a correspondence between a synchronization signal and a physical broadcast channel block SSB configuration and a satellite and / or a correspondence between an SSB configuration and a satellite beam; Second configuration information, where the second configuration information is used to indicate relevant information of the SSB sent by the satellite when the same SSB configuration corresponds to different satellites; The first auxiliary information is used to indicate satellite-related information connected to the same ground base station.

2. The method according to claim 1, characterized in that The first indication information includes at least one of the following information: An indication that the terminal is in a PCI unchanged scenario; The effective time of the terminal in the PCI unchanged scenario.

3. The method according to claim 1 or 2, characterized in that: The second configuration information includes: a correspondence between the same SSB configuration and different satellites; and at least one of the following information: The start time of the satellite transmitting the SSB; The effective duration of the SSB; a beam direction for transmitting the SSB; Configuration of activated fractional bandwidth BWP.

4. The method according to any one of claims 1 to 3, characterized in that: The first auxiliary information includes at least one of the following information: Information on the number of satellites connected to the same ground base station; Satellite ephemeris information connected to the same ground base station; Satellite time information connected to the same ground base station; Satellite beam information connected to the same ground base station.

5. The method according to any one of claims 1 to 4, characterized in that: In a case where the number of terminals supporting the unchanged PCI function within the coverage range where the PCI remains unchanged is less than a threshold, the method further includes: Sending system information; the system information carries a virtual PCI, and the virtual PCI is used for a terminal that does not support the PCI unchanged function to identify different satellites corresponding to the same PCI; Among them, the same PCI corresponds to multiple different virtual PCIs, and different virtual PCIs correspond to different satellites.

6. The method according to any one of claims 1 to 5, characterized in that: In the case where one or more divided geographic areas correspond to one PCI, the method further includes: A primary synchronization signal PSS and a secondary synchronization signal SSS corresponding to the geographical area are sent, so that the terminal can determine the PCI corresponding to the geographical area.

7. The method according to any one of claims 1 to 6, characterized in that: When the network side node is a centralized unit CU, the method further includes: The CU controls the same key, and multiple distribution units DU connected to the same CU cover the same corresponding PCI; The first DU sends to the second DU information related to a preset number of data packets and stored data packet information that the first DU last sent to the second DU through the CU forwarding or through the first interface configured between DUs; wherein, The first DU is a DU currently providing a service to the terminal, and the second DU is a next DU providing a service to the terminal.

8. An information identification method, characterized in that: Applied to a terminal, the method comprises: receiving at least one of the following information, and identifying information from different satellites based on the information: First indication information, where the first indication information is used to indicate whether the terminal is in a scenario where the physical cell identifier PCI remains unchanged, and / or time information of a scenario where the PCI changes or remains unchanged, and / or one or more divided geographical areas correspond to one PCI; First configuration information, where the first configuration information is used to indicate a correspondence between a synchronization signal and a physical broadcast channel block SSB configuration and a satellite and / or a correspondence between an SSB configuration and a satellite beam; Second configuration information, where the second configuration information is used to indicate relevant information of the SSB sent by the satellite when the same SSB configuration corresponds to different satellites; The first auxiliary information is used to indicate satellite-related information connected to the same ground base station.

9. The method according to claim 8, characterized in that In the case where the terminal does not support the PCI unchanged function within the coverage range where the PCI remains unchanged, the method further includes: Receive system information; the system information carries a virtual PCI, and the virtual PCI is used for a terminal that does not support the PCI unchanged function to identify different satellites corresponding to the same PCI; Among them, the same PCI corresponds to multiple different virtual PCIs, and different virtual PCIs correspond to different satellites.

10. The method according to claim 8, characterized in that In the case where the terminal does not support the PCI unchanged function within the coverage range where the PCI remains unchanged, the method further includes: In the event that the terminal loses communication connection with the first satellite, attempting to restore the connection through beam failure recovery BFR; A second satellite corresponding to the same PCI as the first satellite is detected, and the network is re-accessed through the second satellite.

11. The method according to claim 8, characterized in that In the case where the terminal does not support the PCI unchanged function within the coverage range where the PCI remains unchanged, the method further includes: After the terminal loses communication connection with the first satellite or before the out-of-service time of the first satellite times out, the terminal performs a measurement operation; Access a second satellite corresponding to the same PCI as the first satellite through cell selection or cell reselection.

12. The method according to claim 8, characterized in that In the case where the terminal does not support the PCI unchanged function within the coverage range where the PCI remains unchanged, the method further includes: In the case where the terminal loses communication connection with the first satellite, the terminal accesses a network corresponding to a second satellite having the same PCI as that corresponding to the first satellite through intra-cell switching.

13. A network node, characterized in that: include: a first communication interface and a first processor; wherein, The first communication interface is used to send at least one of the following information for the terminal to identify information from different satellites: First indication information, where the first indication information is used to indicate whether the terminal is in a scenario where the physical cell identifier PCI remains unchanged, and / or time information of a scenario where the PCI changes or remains unchanged, and / or one or more divided geographical areas correspond to one PCI; First configuration information, where the first configuration information is used to indicate a correspondence between a synchronization signal and a physical broadcast channel block SSB configuration and a satellite and / or a correspondence between an SSB configuration and a satellite beam; Second configuration information, where the second configuration information is used to indicate relevant information of the SSB sent by the satellite when the same SSB configuration corresponds to different satellites; The first auxiliary information is used to indicate satellite-related information connected to the same ground base station.

14. A terminal, characterized in that: include: A second communication interface and a second processor; wherein, The second communication interface is configured to receive at least one of the following information, and identify information from different satellites based on the information: First indication information, where the first indication information is used to indicate whether the terminal is in a scenario where the physical cell identifier PCI remains unchanged, and / or time information of a scenario where the PCI changes or remains unchanged, and / or one or more divided geographical areas correspond to one PCI; First configuration information, where the first configuration information is used to indicate a correspondence between a synchronization signal and a physical broadcast channel block SSB configuration and a satellite and / or a correspondence between an SSB configuration and a satellite beam; Second configuration information, where the second configuration information is used to indicate relevant information of the SSB sent by the satellite when the same SSB configuration corresponds to different satellites; The first auxiliary information is used to indicate satellite-related information connected to the same ground base station.

15. A network node, characterized in that: include: a first processor and a first memory for storing a computer program executable on the processor, Wherein, when the first processor is used to run the computer program, the steps of the method described in any one of claims 1 to 7 are executed.

16. A terminal, characterized in that: include: a second processor and a second memory for storing a computer program executable on the processor, Wherein, when the second processor is used to run the computer program, the steps of the method described in any one of claims 8 to 12 are executed.

17. A storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the computer program implements the steps of the method according to any one of claims 1 to 7, or implements the steps of the method according to any one of claims 8 to 12.

18. A computer program product, characterized in that When the instructions in the computer program are executed by an electronic device, the method according to any one of claims 1 to 7 or the method according to any one of claims 8 to 12 is implemented.

19. A computer program, characterized in that When the computer program is executed by a processor, the method according to any one of claims 1 to 7 or the method according to any one of claims 8 to 12 is implemented.

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