Information identification method, apparatus, device, and storage medium

Abstract

Embodiments of the present invention provide an information identification method, apparatus, device, and storage medium. The method includes a network node transmitting at least one of first instruction information, first configuration information, second configuration information, and first auxiliary information, and a terminal using the information to identify information from different satellites. The first instruction information is used to indicate whether the terminal is in a PCI invariant scenario, and / or time information if it is in a PCI changing or invariant scenario, and / or that one or more divided geographical areas correspond to one PCI. 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. The second configuration information is used to indicate relevant information of the SSB transmitted from the satellite when the same SSB configuration corresponds to different satellites. The first auxiliary information is used to indicate relevant information of satellites connected to the same ground station.

Description

[Technical Field]

[0001] (Cross-reference to Related Applications) The present invention claims priority based on the Chinese patent application filed with the China National Intellectual Property Administration on September 15, 2023, with the application number 202311196958.8, and the entire content of the above Chinese patent application is incorporated into the present invention by reference. The present invention relates to the field of communication technology, and in particular, to an information identification method, apparatus, device and storage medium. [Background Art]

[0002] In current non-terrestrial network (NTN) technology, the unchanged physical cell ID (PCI unchanged) solution only supports the quasi-earth-fixed cell hard satellite switch (satellite coverage areas do not overlap during switching) scenario of the transparent transfer architecture, and adaptability to the soft satellite switch (i.e., satellite coverage areas overlap during switching) scenario, and / or the earth moving scenario, and / or the dual connectivity scenario, and / or scenarios such as the regenerative architecture is an issue that needs to be urgently resolved. [Summary of the Invention] [Problem to be Solved by the Invention]

[0003] In view of the foregoing, embodiments of the present invention seek to provide an information identification method, an apparatus, a device and a storage medium. [Means for Solving the Problem]

[0004] The technical solution of the embodiments of the present invention is implemented as follows. Embodiments of the present invention provide an information identification method that is applied to a network-side node. The method includes transmitting at least one of first instruction information, first configuration information, second configuration information, and first auxiliary information, and the terminal using the information to identify information from different satellites. The first instruction information is used to indicate whether the terminal is in a physical cell ID (PCI) invariant scenario, and / or time information if it is in a PCI change or invariant scenario, and / or that one or more divided geographical regions correspond to one PCI. The first configuration information is used to indicate the correspondence between the synchronization signal and the physical broadcast channel block SSB configuration and the satellite, and / or the correspondence between the SSB configuration and the satellite beam. The second configuration information is used to indicate relevant SSB information transmitted from satellites when the same SSB configuration corresponds to different satellites. The aforementioned first auxiliary information is used to indicate relevant information about satellites connected to the same ground base station.

[0005] In embodiments of the present invention, the first instruction information includes at least one of the following pieces of information: an instruction that the terminal is in a PCI invariant scenario, and the validity period when the terminal is in a PCI invariant scenario.

[0006] In embodiments of the present invention, the second configuration information includes the correspondence between the same SSB configuration and different satellites, and further includes at least one of the following: the start time of SSB transmission by the satellite, the effective duration of the SSB, the direction of the beam transmitting the SSB, and the configuration of an activated partial bandwidth BWP.

[0007] In embodiments of the present invention, the first auxiliary information includes at least one of the following: information on the number of satellites connected to the same ground base station, ephemeris information of satellites connected to the same ground base station, time information of satellites connected to the same ground base station, and beam information of satellites connected to the same ground base station.

[0008] In embodiments of the present invention, if the number of terminals supporting PCI invariance functionality within the coverage range that keeps PCI invariant is less than a threshold, the method further includes transmitting system information. The aforementioned system information includes a virtual PCI. This virtual PCI is used by terminals that do not support PCI immutability to identify different satellites corresponding to the same PCI. The same PCI corresponds to multiple different virtual PCIs, and different virtual PCIs correspond to different satellites.

[0009] In embodiments of the present invention, if one or more divided geographical regions correspond to one PCI, the method further includes transmitting a primary synchronization signal PSS and a secondary synchronization signal SSS corresponding to the geographical region so that the terminal determines the PCI corresponding to the geographical region.

[0010] In an embodiment of the present invention, when the network-side node is a central unit CU, the method is as follows: The CU controls the same key, and multiple distributed units DU connected to the same CU provide coverage corresponding to the same PCI. The CU further includes forwarding, or transmitting to the second DU, a predetermined number of data packet-related information and recorded data packet information that the first DU ultimately transmitted from the first DU to the second DU, either by the CU or by a first interface located between the DUs. The first DU is the current DU providing services to the terminal. The second DU is the next DU providing services to the terminal.

[0011] Embodiments of the present invention further provide an information identification method that can be applied to a terminal. The method includes transmitting at least one of first instruction information, first setting information, second setting information, and first auxiliary information, and identifying information from different satellites based on the information. The first instruction information is used to indicate whether the terminal is in a physical cell identifier PCI invariant scenario, and / or time information if it is in a PCI change or invariant scenario, and / or that one or more divided geographical regions correspond to one PCI. The first configuration information is used to indicate the correspondence between the synchronization signal and the physical broadcast channel block SSB configuration and the satellite, and / or the correspondence between the SSB configuration and the satellite beam. The second configuration information is used to indicate relevant SSB information transmitted from satellites when the same SSB configuration corresponds to different satellites. The aforementioned first auxiliary information is used to indicate relevant information about satellites connected to the same ground base station.

[0012] In embodiments of the present invention, if the terminal does not support PCI immutability within the coverage area that maintains PCI immutability, the method further includes receiving system information. The system information includes a virtual PCI. The virtual PCI is for terminals that do not support PCI immutability to identify separate satellites corresponding to the same PCI. The same PCI corresponds to multiple different virtual PCIs, and different virtual PCIs correspond to different satellites.

[0013] In embodiments of the present invention, if the terminal does not support PCI invariance functionality within the coverage range that maintains PCI invariance, the method further includes attempting to restore the connection by beam fault recovery BFR when the terminal loses communication connection with the first satellite, and, upon detecting a second satellite corresponding to the same PCI as the first satellite, re-accessing the network via the second satellite.

[0014] In embodiments of the present invention, if the terminal does not support PCI invariance functionality within a coverage range that maintains PCI invariance, the method further includes the terminal performing a measurement operation after losing communication with the first satellite or before the first satellite's service downtime times out, and re-accessing a second satellite corresponding to the same PCI as the first satellite by cell selection or cell re-selection.

[0015] In embodiments of the present invention, if the terminal does not support PCI invariance functionality within the coverage range that maintains PCI invariance, the method further includes switching cells to access a network corresponding to a second satellite that corresponds to the same PCI as the first satellite if the terminal loses communication connectivity with the first satellite.

[0016] Embodiments of the present invention further provide a network node, which includes a first communication interface and a first processor. The first communication interface transmits at least one of first instruction information, first configuration information, second configuration information and first auxiliary information, which a terminal uses to identify information from different satellites. The first instruction information is used to indicate whether the terminal is in a physical cell identifier PCI invariant scenario, and / or time information if it is in a PCI change or invariant scenario, and / or that one or more divided geographical regions correspond to one PCI. The first configuration information is used to indicate the correspondence between the synchronization signal and the physical broadcast channel block SSB configuration and the satellite, and / or the correspondence between the SSB configuration and the satellite beam. The second configuration information is used to indicate relevant SSB information transmitted from satellites when the same SSB configuration corresponds to different satellites. The aforementioned first auxiliary information is used to indicate relevant information about satellites connected to the same ground base station.

[0017] An embodiment of the present invention further provides a terminal, comprising a second communication interface and a second processor. The second communication interface transmits at least one piece of information among first indication information, first configuration information, second configuration information and first auxiliary information, and identifies information from different satellites based on the information. The first indication information is used to indicate whether the terminal is in a physical cell identifier PCI unchanged scenario, and / or time information when the terminal is in a PCI changed or unchanged scenario, and / or that one or more divided geographical regions correspond to one PCI. The first configuration information is used to indicate the correspondence between synchronization signal and physical broadcast channel block SSB configurations and satellites, and / or the correspondence between SSB configurations and satellite beams. The second configuration information is used to indicate related information of SSBs transmitted from satellites when the same SSB configuration corresponds to different satellites. The first auxiliary information is used to indicate related information of satellites connected to the same terrestrial base station.

[0018] An embodiment of the present invention further provides a network node, comprising a first processor and a first memory for storing a computer program executable in the processor. When the first processor executes the computer program, the steps of the above method are performed.

[0019] An embodiment of the present invention further provides a terminal, comprising a second processor and a second memory for storing a computer program executable in the processor. When the second processor executes the computer program, the steps of the above method are performed.

[0020] An embodiment of the present invention further provides a storage medium having a computer program recorded thereon. When the computer program is executed by a processor, the steps of the above method are performed.

[0021] In the information identification method, apparatus, device and storage medium according to embodiments of the present invention, a network-side node transmits at least one piece of information among first indication information, first configuration information, second configuration information and first auxiliary information, so that a terminal identifies information from different satellites using said information. Said first indication information is used to indicate whether the terminal is in a PCI unchanged scenario, and / or time information when the terminal is in a PCI changed or unchanged scenario, and / or that one or more divided geographic regions correspond to one PCI. Said first configuration information is used to indicate the correspondence between SSB configurations and satellites, and / or the correspondence between SSB configurations and satellite beams. Said second configuration information is used to indicate related information of SSBs transmitted from satellites when the same SSB configuration corresponds to different satellites. Said first auxiliary information is used to indicate related information of satellites connected to the same ground base station. In embodiments of the present invention, separate information transmitted from the network-side node can implement a solution with unchanged PCI in various scenarios during NTN communication. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] [Figure 1] Fig. 1 is a flowchart showing a flow of an information identification method according to an embodiment of the present invention. [Figure 2] Fig. 2 is a flowchart showing a flow of an information identification method according to an embodiment of the present invention. [Figure 3] Fig. 1 is a configuration diagram showing the structure of an information identification apparatus according to an embodiment of the present invention. [Figure 4] Fig. 2 is a configuration diagram showing the structure of an information identification apparatus according to an embodiment of the present invention. [Figure 5] It is a configuration diagram showing the structure of a network node according to an embodiment of the present invention. [Figure 6] It is a configuration diagram showing the structure of a terminal according to an embodiment of the present invention. MODE FOR CARRYING OUT THE INVENTION

[0023] The present invention will be described below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are not intended to limit the present invention, but are used solely for the interpretation of related inventions. Furthermore, for the sake of clarity, only the parts relating to related inventions are shown in the drawings. The embodiments of the present invention and the characteristic configurations based on these embodiments may be used in combination with each other, provided there are no contradictions. The present invention will now be described in detail below with reference to the drawings and embodiments.

[0024] An embodiment of the present invention provides an information identification method, which is applied to a network-side node as shown in Figure 1, and includes the following steps. Step 101: Transmit at least one of the first instruction information, first configuration information, second configuration information, and first auxiliary information, and the terminal uses the said information to identify information from different satellites. The first instruction information is used to indicate whether the terminal is in a physical cell ID (PCI) invariant scenario, and / or time information if it is in a PCI change or invariant scenario, and / or that one or more divided geographical regions correspond to one PCI. The first configuration information is used to indicate the correspondence between the synchronization signal and the physical broadcast channel block (SSB) configuration and the satellite, and / or the correspondence between the SSB configuration and the satellite beam. The second configuration information is used to indicate relevant SSB information transmitted from satellites when the same SSB configuration corresponds to different satellites. The aforementioned first auxiliary information is used to indicate relevant information about satellites connected to the same ground base station.

[0025] In actual applications, the terminal may be referred to as a UE or a user. The network-side node may include any one of a base station, satellite, central unit (CU), or distributed unit (DU). Embodiments of the present invention are applicable to PCI-invariant solutions in various scenarios (e.g., transparent transport architecture scenario, regenerative architecture scenario).

[0026] In one embodiment of the present invention, the first instruction information includes at least one of the following pieces of information: an instruction that the terminal is in a PCI invariant scenario, and the validity period when the terminal is in a PCI invariant scenario.

[0027] In actual applications, for a transparent transfer architecture, a terminal may simultaneously recognize multiple satellites or communicate with multiple satellites simultaneously (multiple satellites connecting to the same base station on the ground), and be in a PCI invariant scenario. The network node transmits first instruction information to the terminal. Here, the validity period when the terminal is in a PCI invariant scenario may be indicated by the start time + duration when the terminal is in a PCI change or invariant scenario, the absolute start and end times (Coordinated Universal Time (UTC) t1, UTC t2) when the terminal is in a PCI change or invariant scenario, or the relative time when the terminal is in a PCI change or invariant scenario. Upon receiving the first instruction information, the terminal clearly performs subsequent operations according to the PCI change or unchanged scenario. For example, in the PCI unchanged scenario, it must synchronize with the new satellite in a timely manner without switching, while in the PCI changed scenario, it must perform a switching process. The specific synchronization or switching process is a related technology and therefore its details are omitted here.

[0028] In one embodiment, during actual application, the network-side node transmits first configuration information to indicate the correspondence between the Synchronization Signal and PBCH block (SSB) settings and the satellite, and / or the correspondence between the SSB settings and the satellite beam. Furthermore, different SSB settings (including one or more SSB indices) are adapted to different satellites or different beams. Specifically, the relationship between an SSB setting and a satellite or beam setting is such that, for example, satellite ID1 and / or beam1 corresponds to SSB setting 1 (set1), satellite ID2 and / or beam2 corresponds to SSB set2, and so on.

[0029] After receiving the correspondence between the SSB setting (set) and the satellite, or the relationship between the SSB setting and the beam setting, the terminal receives network-side information with the corresponding SSB setting, while being covered by different satellites or beams.

[0030] In one embodiment of the present invention, the second configuration information includes the correspondence between the same SSB configuration and different satellites, and further includes at least one of the following: the start time of SSB transmission by the satellite, the effective duration of the SSB, the direction of the beam transmitting the SSB, and the configuration of an activated partial bandwidth BWP.

[0031] In actual application, the network node configures the second configuration information so that the same SSB setting corresponds to different satellites, scheduling various satellites for the network to transmit SSB, and also configures the terminal with at least one of the following pieces of information: the start time of satellite SSB transmission (broadcast) (used to distinguish between satellites in service, satellites nearing arrival, and distant satellites), the effective duration of the SSB (used to distinguish between satellites in service, satellites nearing arrival, and distant satellites), the direction of the beam transmitting the SSB, and the activated BWP setting (used for the terminal to detect SSB in different activated BWPs). After the terminal receives the above second configuration information, it receives network-side information with the same SSB settings (set) based on the corresponding time information (start time of SSB transmission by satellite and / or effective duration of SSB) within the coverage range of a different satellite or beam.

[0032] In one embodiment of the present invention, the first auxiliary information includes at least one of the following: information on the number of satellites connected to the same ground station, ephemeris information of satellites connected to the same ground station, time information of satellites connected to the same ground station, and beam information of satellites connected to the same ground station.

[0033] In actual application, the network-side node (e.g., base station) transmits (broadcasts or multicasts) first auxiliary information. This first auxiliary information includes at least one of the following: information on the number of satellites connected to the same ground base station, ephemeris information of the satellites connected to the same ground base station, time information of the satellites connected to the same ground base station, and beam information of the satellites connected to the same ground base station. The satellite time information includes at least one of the following: epoch time, satellite service start time, and satellite service downtime. The satellite beam information includes at least one of the following: beam coverage radius, change in beam coverage radius relative to the previous satellite, beam angle (e.g., elevation angle on the UE side or gateway side), and beam angle change. Based on the first auxiliary information, the terminal may implicitly obtain a rough timeframe (using satellite number information, satellite ephemeris information, time-related information, and beam information) in the case of PCI change or non-change scenarios, access a new satellite in a timely manner to obtain services (using time information), or adjust the beam reception direction in a timely manner (using beam angle-related information).

[0034] In one embodiment of the present invention, if the number of terminals supporting PCI invariance functionality within the coverage range that maintains PCI invariance is less than a threshold, the method further includes transmitting system information. The system information includes a virtual PCI. The virtual PCI is for terminals that do not support PCI invariance functionality to identify separate satellites corresponding to the same PCI. Furthermore, the same PCI corresponds to multiple different virtual PCIs, and different virtual PCIs correspond to different satellites.

[0035] The system information further includes the first instruction information, first setting information, second setting information, and first auxiliary information. In embodiments of the present invention, a virtual PCI is further introduced into the system information for a UE that does not support PCI unchanged to distinguish between separate satellites that actually correspond to the same PCI, for example, vPCI1 corresponds to satellite 1 and vPCI2 corresponds to satellite 2.

[0036] In actual applications, the network may decide whether to deploy virtual PCI based on the UE capability report. If the number of UEs supporting PCI unchanged functionality exceeds a certain threshold, the network will use the first instruction information to indicate that a terminal is in a PCI unchanged scenario; otherwise, it will indicate that a terminal is in a PCI changed scenario. In the latter case, virtual PCI is deployed in the system information, for example, vPCI1 corresponds to satellite 1 and vPCI2 corresponds to satellite 2.

[0037] In one embodiment of the present invention, if one or more divided geographical regions correspond to one PCI, the method further includes transmitting a primary synchronization signal (PSS) and a secondary synchronization signal (SSS) corresponding to the geographical region so that the terminal determines the PCI corresponding to the geographical region.

[0038] In actual applications, for PCI based on actual geographical area information (which can better solve scenarios for rapidly converting cells, and this scenario may, for example, be an ear-moving cell case, but is not limited to this scenario), first, the ground (actual geographical area) is divided into regions, one PCI is assigned to each region or several regions, and the network side transmits the corresponding PSS / SSS based on the PCI division (note that the PCI calculation formula is: JPEG2026530093000002.jpg10170 Here, N(1)ID = Slave Synchronization Signal (SSS), range {0, 1..., 335}, and N(2)ID = Master Synchronization Signal (PSS), range {0, 1, 2}. Next, after satellites connected to the same base station have traveled to each region, they transmit the master / slave synchronization signals PSS / SSS corresponding to that region.

[0039] In one embodiment of the present invention, if the network-side node is a central unit CU, the method further includes: the CU controlling the same key and multiple distributed units DU connected to the same CU covering the same PCI; and the CU forwarding a predetermined number of data packet-related information and recorded data packet information that the first DU ultimately transmitted from the first DU to the second DU, or transmitting it to the second DU via a first interface located between the DUs. The first DU is the current DU providing service to the terminal. The second DU is the next DU providing service to the terminal.

[0040] In the embodiment of the present invention, the first interface is an interface newly added between DUs for transmitting data between DUs.

[0041] In actual applications, embodiments of the present invention are applicable to regenerative architectures such as distributed unit onboard (DU onboard) scenarios, but not to base station onboard (gNB onboard) scenarios or PCI immutability scenarios. Furthermore, the key is a key included in the PDCP layer encrypted transmission process. The data packets may be data packets transmitted (forwarded) between DUs. The reason for ultimately transmitting a predetermined number (the last few) of data packet-related information and recorded data packet information is that some data packets may remain in the buffer of the first DU without being transmitted in a timely manner, and these data packets also need to be forwarded. The last few data packets to be transmitted are forwarded to the second DU and retransmitted by the second DU to ensure a success rate of data packet transmission.

[0042] An embodiment of the present invention further provides an information identification method applied to a terminal, as shown in Figure 2. The method includes the following steps. Step 201: Receive at least one of the first instruction information, first configuration information, second configuration information, and first auxiliary information, and identify information from different satellites based on the said information. The first instruction information is used to indicate whether the terminal is in a physical cell identifier PCI invariant scenario, and / or time information if it is in a PCI change or invariant scenario, and / or that one or more divided geographical regions correspond to one PCI. The first configuration information is used to indicate the correspondence between the synchronization signal and the physical broadcast channel block SSB configuration and the satellite, and / or the correspondence between the SSB configuration and the satellite beam. The second configuration information is used to indicate relevant SSB information transmitted from satellites when the same SSB configuration corresponds to different satellites. The aforementioned first auxiliary information is used to indicate relevant information about satellites connected to the same ground base station.

[0043] In actual applications, the terminal may be referred to as a UE or a user. Embodiments of the present invention are applicable to PCI-invariant solutions in various scenarios (e.g., transparent transfer architecture scenario, replay architecture scenario).

[0044] In embodiments of the present invention, if the terminal does not support PCI invariance functionality within the coverage range that maintains PCI invariance, the method further includes receiving system information. The system information includes a virtual PCI. The virtual PCI is for terminals that do not support PCI invariance functionality to identify different satellites corresponding to the same PCI. Furthermore, the same PCI corresponds to multiple different virtual PCIs, and different virtual PCIs correspond to different satellites.

[0045] In embodiments of the present invention, if the terminal does not support PCI invariance functionality within the coverage range that maintains PCI invariance, the method further includes attempting to restore the connection by beam fault recovery BFR when the terminal loses communication connection with the first satellite, and, upon detecting a second satellite corresponding to the same PCI as the first satellite, re-accessing the network via the second satellite.

[0046] In actual applications, terminals that do not support PCI immutability will attempt to regain connectivity through beam failure recovery (BRF) after losing communication with the previous satellite (the first satellite), and will re-access the network once they detect the same PCI satellite (the corresponding new satellite, e.g., the second satellite).

[0047] In embodiments of the present invention, if the terminal does not support PCI invariance functionality within a coverage range that maintains PCI invariance, the method further includes the terminal performing a measurement operation after losing communication with the first satellite or before the first satellite's service downtime times out, and re-accessing a second satellite corresponding to the same PCI as the first satellite by cell selection or cell re-selection.

[0048] In actual applications, a terminal supporting PCI immutability may perform a measurement operation and re-access a new satellite (second satellite) by cell selection or cell re-selection after losing communication with the previous satellite (first satellite) or before the first satellite's t-service timeout times out.

[0049] In embodiments of the present invention, if the terminal does not support PCI invariance functionality within the coverage range that maintains PCI invariance, the method further includes, if the terminal loses communication with the first satellite, accessing a network corresponding to a second satellite that corresponds to the same PCI as the first satellite by intra-cell HO.

[0050] For a method of realizing a network-side node according to an embodiment of the present invention, the embodiment of the present invention further provides an information identification device, including a first communication unit 301, which is applied to a network-side node as shown in Figure 3. The first communication unit 301 receives at least one of the following: first instruction information, first configuration information, second configuration information, and first auxiliary information, and the terminal uses the information to identify information from different satellites. The first instruction information is used to indicate whether the terminal is in a physical cell identifier PCI invariant scenario, and / or time information if it is in a PCI change or invariant scenario, and / or that one or more divided geographical regions correspond to one PCI. The first configuration information is used to indicate the correspondence between the synchronization signal and the physical broadcast channel block SSB configuration and the satellite, and / or the correspondence between the SSB configuration and the satellite beam. The second configuration information is used to indicate relevant SSB information transmitted from satellites when the same SSB configuration corresponds to different satellites. The aforementioned first auxiliary information is used to indicate relevant information about satellites connected to the same ground base station.

[0051] In embodiments of the present invention, the first instruction information includes at least one of the following pieces of information: an instruction that the terminal is in a PCI invariant scenario, and the validity period when the terminal is in a PCI invariant scenario.

[0052] In embodiments of the present invention, the second configuration information includes the correspondence between the same SSB configuration and different satellites, and further includes at least one of the following: the start time of SSB transmission by the satellite, the effective duration of the SSB, the direction of the beam transmitting the SSB, and the configuration of an activated partial bandwidth BWP.

[0053] In embodiments of the present invention, the first auxiliary information includes at least one of the following: information on the number of satellites connected to the same ground base station, ephemeris information of satellites connected to the same ground base station, time information of satellites connected to the same ground base station, and beam information of satellites connected to the same ground base station.

[0054] In embodiments of the present invention, if the number of terminals supporting PCI invariance functionality within the coverage range that maintains PCI invariance is smaller than a threshold, the first communication unit 301 is used to transmit system information. The system information includes a virtual PCI. The virtual PCI is used to identify different satellites corresponding to the same PCI for terminals that do not support PCI invariance functionality. Furthermore, the same PCI corresponds to multiple different virtual PCIs, and different virtual PCIs correspond to different satellites.

[0055] In embodiments of the present invention, if one or more divided geographical regions correspond to one PCI, the first communication unit 301 transmits PSS and SSS corresponding to the geographical regions so that a terminal determines the PCI corresponding to the geographical region.

[0056] In embodiments of the present invention, when the network-side node is a central unit CU, the first communication unit 301 controls the same key, and multiple distributed units DU connected to the same CU cover the same PCI, and the first DU forwards a predetermined number of data packet-related information and recorded data packet information that the first DU ultimately transmits from the first DU to the second DU, either by the CU or by a first interface located between the DUs. The first DU is the current DU providing service to the terminal. The second DU is the next DU providing service to the terminal.

[0057] In actual applications, the first communication unit 301 may be implemented by a communication interface in an information identification device.

[0058] It should be explained that, while the above-described example of the information identification device performing communication involved the division of each program module, in actual applications, the above processes may be assigned to different program modules as needed. In other words, the internal structure of the device may be divided into different program modules to perform all or some of the processes described above. Furthermore, the device according to the above-described embodiment belongs to the same concept as the method embodiment, and for details of its specific implementation process, please refer to the method embodiment, as a detailed explanation is omitted here.

[0059] For a method of realizing an embodiment of the present invention, the embodiment of the present invention further provides an information identification device, which is applied to a terminal as shown in Figure 4, and includes a second communication unit 401. The second communication unit 401 receives at least one of the following: first instruction information, first setting information, second setting information, and first auxiliary information, and identifies information from different satellites based on the said information. The first instruction information is used to indicate whether the terminal is in a physical cell identifier PCI invariant scenario, and / or time information if it is in a PCI change or invariant scenario, and / or that one or more divided geographical regions correspond to one PCI. The first configuration information is used to indicate the correspondence between the synchronization signal and the physical broadcast channel block SSB configuration and the satellite, and / or the correspondence between the SSB configuration and the satellite beam. The second configuration information is used to indicate relevant SSB information transmitted from satellites when the same SSB configuration corresponds to different satellites. The aforementioned first auxiliary information is used to indicate relevant information about satellites connected to the same ground base station.

[0060] In embodiments of the present invention, if the terminal does not support PCI invariance functionality within the coverage range that maintains PCI invariance, the second communication unit 401 is further used to receive system information. The system information includes virtual PCI. The virtual PCI is used for terminals that do not support PCI invariance functionality to identify different satellites corresponding to the same PCI. Furthermore, the same PCI corresponds to multiple different virtual PCIs, and different virtual PCIs correspond to different satellites.

[0061] In embodiments of the present invention, if the terminal does not support PCI invariance functionality within the coverage range that maintains PCI invariance, the second communication unit 401 is further used to attempt to restore the connection by beam fault recovery BFR if the terminal loses communication connection with the first satellite, and to re-access the network via the second satellite if it detects a second satellite corresponding to the same PCI as the first satellite.

[0062] In embodiments of the present invention, if the terminal does not support PCI invariance functionality within the coverage range that maintains PCI invariance, the second communication unit 401 is further used to allow the terminal to perform measurement operations and re-access the second satellite corresponding to the same PCI as the first satellite by cell selection or cell re-selection after the terminal has lost communication connection with the first satellite or before the service downtime of the first satellite times out.

[0063] In embodiments of the present invention, if the terminal does not support PCI invariance functionality within the coverage range that maintains PCI invariance, the second communication unit 401 is further used, by cell switching, to access a network corresponding to the second satellite that corresponds to the same PCI as the first satellite, if the terminal loses communication connection with the first satellite.

[0064] In actual applications, the second communication unit 401 may be implemented by a communication interface in an information identification device.

[0065] It should be explained that, while the above-described example of the information identification device performing communication involved the division of each program module, in actual applications, the above processes may be assigned to different program modules as needed. In other words, the internal structure of the device may be divided into different program modules to perform all or some of the processes described above. Furthermore, the device according to the above-described embodiment belongs to the same concept as the method embodiment, and details of its specific implementation process should be referred to the method embodiment, which will not be repeated here.

[0066] Based on the hardware implementation of the program module described above, for a method of implementing the network side of an embodiment of the present invention, an embodiment of the present invention further provides a network node, as shown in Figure 5. This network node 500 includes a first communication interface 501, a first processor 501, and a first memory 503. The first communication interface 501 can exchange information with terminals and / or other nodes on the network side. The first processor 502 is connected to the first communication interface 501 to enable information exchange with terminals and / or other nodes on the network side and, when executing a computer program, executes a method relating to one or more technical solutions of the network node described above. The first memory 503 stores the computer program.

[0067] Specifically, the first communication interface 501 receives at least one of the first instruction information, first configuration information, second configuration information, and first auxiliary information, and the terminal uses the information to identify information from different satellites. The first instruction information is used to indicate whether the terminal is in a physical cell identifier PCI invariant scenario, and / or time information if it is in a PCI change or invariant scenario, and / or that one or more divided geographical regions correspond to one PCI. The first configuration information is used to indicate the correspondence between the synchronization signal and the physical broadcast channel block SSB configuration and the satellite, and / or the correspondence between the SSB configuration and the satellite beam. The second configuration information is used to indicate relevant SSB information transmitted from satellites when the same SSB configuration corresponds to different satellites. The aforementioned first auxiliary information is used to indicate relevant information about satellites connected to the same ground base station.

[0068] In embodiments of the present invention, the first instruction information includes at least one of the following pieces of information: an instruction that the terminal is in a PCI invariant scenario, and the validity period when the terminal is in a PCI invariant scenario.

[0069] In embodiments of the present invention, the second configuration information includes the correspondence between the same SSB configuration and different satellites, and further includes at least one of the following: the start time of SSB transmission by the satellite, the effective duration of the SSB, the direction of the beam transmitting the SSB, and the configuration of an activated partial bandwidth BWP.

[0070] In embodiments of the present invention, the first auxiliary information includes at least one of the following: information on the number of satellites connected to the same ground base station, ephemeris information of satellites connected to the same ground base station, time information of satellites connected to the same ground base station, and beam information of satellites connected to the same ground base station.

[0071] In embodiments of the present invention, if the number of terminals supporting PCI invariance functionality within the coverage range that maintains PCI invariance is less than a threshold, the first communication interface 501 is used to transmit system information. The system information includes a virtual PCI. The virtual PCI is used to identify different satellites corresponding to the same PCI for terminals that do not support PCI invariance functionality. Furthermore, the same PCI corresponds to multiple different virtual PCIs, and different virtual PCIs correspond to different satellites.

[0072] In embodiments of the present invention, if one or more divided geographical regions correspond to one PCI, the first communication interface 501 is further used to transmit PSS and SSS corresponding to the geographical regions so that a terminal determines the PCI corresponding to the geographical region.

[0073] In embodiments of the present invention, when the network-side node is a central unit CU, the first communication interface 501 is further used to transfer a predetermined number of data packet-related information and recorded data packet information, which control the same key and have coverage corresponding to the same PCI, from the first DU by the CU or to transmit to the second DU by a first interface placed between the DUs. The first DU is the current DU providing service to a terminal. The second DU is the next DU providing service to a terminal.

[0074] The specific processing processes of the first communication interface 501 and the first processor 502 can be understood by referring to the method described above, so a detailed explanation is omitted.

[0075] Naturally, in actual applications, each component in the network node 500 is connected via the bus system 504. It should be understood that the bus system 504 is used to enable communication between these components. The bus system 504 includes a data bus, as well as a power bus, a control bus, and a status signal bus. However, for clarity, in Figure 5, all of these buses are shown as the bus system 504.

[0076] In embodiments of the present invention, the first memory 503 is used to record various types of data to support the operation of the network node 500. Examples of this data include any computer programs to be operated on the network node 500.

[0077] The methods disclosed in the above embodiments of the present invention may be applied within or implemented by the first processor 502. The first processor 502 may be an integrated circuit chip having signal processing capabilities. In implementation, each step of the above method can be completed by integrated logic circuits, which are hardware in the first processor 502, or by commands in software form. The first processor 502 may be a general-purpose processor, a digital signal processor (DSP), or other programmable logic device, discrete gate, transistor logic device, discrete hardware component, etc. The first processor 502 can implement and execute each method, step and logic block diagram disclosed in the embodiments of the present invention. The general-purpose processor may be a microprocessor or any ordinary processor, etc. Implementation of the steps in the methods disclosed in the embodiments of the present invention may be completed as a direct implementation by execution by a hardware decoder processor, or by execution by a combination of hardware and software modules within the decoder processor. The software module may be located in a storage medium, which is located in a first memory 503, and the first processor 502 reads the information in the first memory 503 and combines it with its hardware to complete the steps in the method described above.

[0078] 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, microcontroller units (MCUs), microprocessors, or other electronic components, and may be used to perform the methods described above.

[0079] Based on the hardware implementation of the program module described above, for a method of implementing the network side of an embodiment of the present invention, an embodiment of the present invention further provides a terminal, as shown in Figure 6. This terminal 600 includes a second communication interface 601, a second processor 602, and a second memory 603. The second communication interface 601 can exchange information with other nodes on the network side. The second processor 602 is connected to the second communication interface 601 to enable information exchange with other nodes on the network side and, when executing a computer program, executes a method relating to one or more of the above-described network side technical solutions. The computer program is stored in the second memory 603.

[0080] Specifically, the second communication interface 601 receives at least one of the first instruction information, first configuration information, second configuration information, and first auxiliary information, and identifies information from different satellites based on the said information. The first instruction information is used to indicate whether the terminal is in a physical cell identifier PCI invariant scenario, and / or time information if it is in a PCI change or invariant scenario, and / or that one or more divided geographical regions correspond to one PCI. The first configuration information is used to indicate the correspondence between the synchronization signal and the physical broadcast channel block SSB configuration and the satellite, and / or the correspondence between the SSB configuration and the satellite beam. The second configuration information is used to indicate relevant SSB information transmitted from satellites when the same SSB configuration corresponds to different satellites. The aforementioned first auxiliary information is used to indicate relevant information about satellites connected to the same ground base station.

[0081] In embodiments of the present invention, if the terminal does not support PCI invariance functionality within the coverage range that maintains PCI invariance, the second communication interface 601 is further used to receive system information. The system information includes virtual PCI. The virtual PCI is used for terminals that do not support PCI invariance functionality to identify different satellites corresponding to the same PCI. Furthermore, the same PCI corresponds to multiple different virtual PCIs, and different virtual PCIs correspond to different satellites.

[0082] In embodiments of the present invention, if the terminal does not support PCI invariance functionality within the coverage range that maintains PCI invariance, the second communication interface 601 is further used to attempt to restore the connection by beam fault recovery BFR if the terminal loses communication connection with the first satellite, and to re-access the network via the second satellite if it detects a second satellite corresponding to the same PCI as the first satellite.

[0083] In embodiments of the present invention, if the terminal does not support PCI invariance functionality within the coverage range that maintains PCI invariance, the second communication interface 601 is further used by the terminal to perform measurement operations and re-access the second satellite corresponding to the same PCI as the first satellite by cell selection or cell re-selection after the terminal loses communication connection with the first satellite or before the service downtime of the first satellite times out.

[0084] In embodiments of the present invention, if the terminal does not support PCI invariance functionality within the coverage range that maintains PCI invariance, the second communication interface 601 is further used, by cell switching, to access a network corresponding to the second satellite that corresponds to the same PCI as the first satellite, if the terminal loses communication connection with the first satellite.

[0085] The specific processing processes of the second communication interface 601 and the second processor 602 can be understood by referring to the method described above, so a detailed explanation is omitted.

[0086] Naturally, in actual applications, each component in the network node 600 is connected via the bus system 604. It should be understood that the bus system 604 is used to enable communication between these components. The bus system 604 includes a data bus, as well as a power bus, a control bus, and a status signal bus. However, for clarity, in Figure 6, all of these buses are shown as the bus system 504.

[0087] In embodiments of the present invention, the second memory 603 is used to record various types of data to support the operation of the terminal 600. Examples of this data include any computer programs to be operated on the terminal 600.

[0088] The methods disclosed in the above embodiments of the present invention may be applied within or implemented by the second processor 602. The second processor 602 may be an integrated circuit chip having signal processing capabilities. In implementation, each step of the above method can be completed by integrated logic circuits, which are hardware in the second processor 602, or by commands in software form. The second processor 602 may be a general-purpose processor, a digital signal processor (DSP), or other programmable logic device, discrete gate, transistor logic device, discrete hardware component, etc. The second processor 602 can implement and execute each method, step and logic block diagram disclosed in the embodiments of the present invention. The general-purpose processor may be a microprocessor or any ordinary processor, etc. Implementation of the steps in the methods disclosed in the embodiments of the present invention may be completed as a direct implementation by execution by a hardware decoder processor, or by execution by a combination of hardware and software modules within the decoder processor. The software module may be located in a storage medium, which is located in a second memory 603, and the second processor 602 reads the information in the second memory 603 and combines it with its hardware to complete the steps in the method described above.

[0089] In exemplary embodiments, the terminal 600 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, microcontroller units (MCUs), microprocessors, or other electronic components, and may be used to perform the methods described above.

[0090] In exemplary embodiments, embodiments of the present invention further provide a storage medium, i.e., a computer storage medium, which is specifically a computer-readable storage medium and includes, for example, a first memory 503 for recording a computer program. The computer program may be executed by a first processor 502 of a network node 500 so that the steps of the network node-side method described above are completed. Alternatively, for example, a second memory 603 for recording a computer program may be included, which may be executed by a second processor 602 of a terminal 600 so that the steps of the terminal-side method described above are completed. The computer-readable storage medium may be a memory such as FRAM®, ROM, PROM, EPROM, EEPROM, Flash Memory, surface-mount memory, optical disc, or CD-ROM.

[0091] It should be explained that terms like "first," "second," etc., are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0092] Furthermore, the technical solutions described in the embodiments of the present invention can be combined in any way, as long as they do not contradict each other.

[0093] The above describes only preferred embodiments of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. Information identification method, Applied to network-side nodes, The process includes transmitting at least one of the following pieces of information: first instruction information, first configuration information, second configuration information, and first auxiliary information, and the terminal using the said information to identify information from different satellites. The first instruction information is used to indicate whether the terminal is in a physical cell ID (PCI) invariant scenario, and / or time information if it is in a PCI change or invariant scenario, and / or that one or more divided geographical regions correspond to one PCI. The first configuration information is used to indicate the correspondence between the synchronization signal and the physical broadcast channel block SSB configuration and the satellite, and / or the correspondence between the SSB configuration and the satellite beam. The aforementioned second configuration information is used to indicate relevant SSB information transmitted from satellites when the same SSB configuration corresponds to different satellites. The information identification method is characterized in that the first auxiliary information is used to indicate related information of a satellite connected to the same ground base station.

2. The method according to claim 1, characterized in that the first instruction information includes at least one of the following: an instruction that the terminal is in a PCI invariant scenario, and the validity period when the terminal is in a PCI invariant scenario.

3. The method according to claim 1 or 2, wherein the second setting information includes the correspondence between the same SSB setting and a different satellite, and further includes at least one of the following: the start time of the SSB transmission by the satellite, the effective duration of the SSB, the direction of the beam transmitting the SSB, and the setting of an activated partial 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 on the number of satellites connected to the same ground base station, ephemeris information of satellites connected to the same ground base station, time information of satellites connected to the same ground base station, and beam information of satellites connected to the same ground base station.

5. If the number of terminals supporting PCI invariance functionality within the coverage area that keeps PCI invariant is less than a threshold, it further includes transmitting system information. The aforementioned system information includes virtual PCI, The aforementioned virtual PCI is for terminals that do not support PCI immutability to identify separate satellites corresponding to the same PCI. The same PCI slot can support multiple different virtual PCI slots. The method according to any one of claims 1 to 4, characterized in that different virtual PCIs correspond to different satellites.

6. If one or more divided geographical regions correspond to one PCI, The method according to any one of claims 1 to 5, further comprising transmitting a primary synchronization signal PSS and a secondary synchronization signal SSS corresponding to the geographical area so that the terminal determines the PCI corresponding to the geographical area.

7. If the aforementioned network-side node is a central unit (CU), The CU controls the same key, and multiple distributed units DU connected to the same CU provide coverage corresponding to the same PCI. The first DU further includes forwarding a predetermined number of data packet-related information and recorded data packet information that the first DU ultimately transmitted from the first DU to the second DU via the CU, or transmitting it to the second DU via a first interface located between the DUs. The first DU is the current DU that provides services to the terminal, The method according to any one of claims 1 to 6, characterized in that the second DU is the next DU that provides services to the terminal.

8. Information identification method, Applied to terminals, The system includes receiving at least one of the first instruction information, first setting information, second setting information, and first auxiliary information, and identifying information from different satellites based on the said information. The first instruction information is used to indicate whether the terminal is in a physical cell identifier PCI invariant scenario, and / or time information if it is in a PCI change or invariant scenario, and / or that one or more divided geographical regions correspond to one PCI. The first configuration information is used to indicate the correspondence between the synchronization signal and the physical broadcast channel block SSB configuration and the satellite, and / or the correspondence between the SSB configuration and the satellite beam. The aforementioned second configuration information is used to indicate relevant SSB information transmitted from satellites when the same SSB configuration corresponds to different satellites. The information identification method is characterized in that the first auxiliary information is used to indicate related information of a satellite connected to the same ground base station.

9. If the terminal does not support PCI immutability within the coverage area that keeps PCI immutable, the system further includes receiving system information. The aforementioned system information includes virtual PCI, The aforementioned virtual PCI is for terminals that do not support PCI immutability to identify separate satellites corresponding to the same PCI. The same PCI slot can support multiple different virtual PCI slots. The method according to 8, characterized in that different virtual PCIs correspond to different satellites.

10. If the terminal does not support PCI immutability within the coverage range that maintains PCI immutability, If the aforementioned terminal loses communication connection with the first satellite, an attempt will be made to restore the connection by beam fault recovery BFR. The method according to 8, further comprising: detecting a second satellite corresponding to the same PCI as the first satellite, and then re-accessing the network via the second satellite.

11. If the terminal does not support PCI immutability within the coverage range that maintains PCI immutability, The terminal performs a measurement operation after it loses communication with the first satellite, or before the first satellite's service downtime times out. The method according to 8, further comprising re-accessing a second satellite corresponding to the same PCI as the first satellite by cell selection or cell re-selection.

12. The method according to 8, further comprising, if the terminal does not support PCI immutability within the coverage range that maintains PCI immutability, or if the terminal loses communication connection with the first satellite, accessing a network corresponding to a second satellite that corresponds to the same PCI as the first satellite by cell switching.

13. Network node, It includes a first communication interface and a first processor, The first communication interface transmits at least one of the first instruction information, first configuration information, second configuration information, and first auxiliary information, and the terminal uses the information to identify information from different satellites. The first instruction information is used to indicate whether the terminal is in a physical cell identifier PCI invariant scenario, and / or time information if it is in a PCI change or invariant scenario, and / or that one or more divided geographical regions correspond to one PCI. The first configuration information is used to indicate the correspondence between the synchronization signal and the physical broadcast channel block SSB configuration and the satellite, and / or the correspondence between the SSB configuration and the satellite beam. The aforementioned second configuration information is used to indicate relevant SSB information transmitted from satellites when the same SSB configuration corresponds to different satellites. A network node characterized in that the first auxiliary information is used to indicate relevant information of satellites connected to the same ground base station.

14. It is a terminal, Includes a second communication interface and a second processor, The second communication interface transmits at least one of the first instruction information, first configuration information, second configuration information, and first auxiliary information, and identifies information from different satellites based on the said information. The first instruction information is used to indicate whether the terminal is in a physical cell identifier PCI invariant scenario, and / or time information if it is in a PCI change or invariant scenario, and / or that one or more divided geographical regions correspond to one PCI. The first configuration information is used to indicate the correspondence between the synchronization signal and the physical broadcast channel block SSB configuration and the satellite, and / or the correspondence between the SSB configuration and the satellite beam. The aforementioned second configuration information is used to indicate relevant SSB information transmitted from satellites when the same SSB configuration corresponds to different satellites. The terminal is characterized in that the first auxiliary information is used to indicate relevant information of a satellite connected to the same ground base station.

15. Network node, It includes a first processor and a first memory for storing computer programs that can be executed in the processor, A network node characterized in that, when the first processor executes the computer program, it performs the steps of the method according to any one of claims 1 to 7.

16. It is a terminal, It includes a second processor and a second memory for storing computer programs that can be executed in the processor, The terminal is characterized in that, when the second processor executes the computer program, it performs the steps of the method according to any one of claims 8 to 12.

17. A storage medium on which computer programs are recorded, A storage medium characterized in that, when the computer program is executed by a processor, it realizes a step according to any one of claims 1 to 7, or a step according to any one of claims 8 to 12.

18. A computer program product, A computer program product characterized in that, when a command in the computer program is executed by an electronic device, it realizes the method according to any one of claims 1 to 7, or the method according to any one of claims 8 to 12.

19. It is a computer program, The computer program, when executed by a processor, is characterized in that it implements the method according to any one of claims 1 to 7, or the method according to any one of claims 8 to 12.

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