Information reporting method, device, apparatus, and storage medium

Abstract

The present disclosure provides an information reporting method, a device, an apparatus, and a storage medium. The method comprises: when broadcasting a plurality of tracking areas (TAs) in a non-terrestrial network (NTN) cell, a terminal sends, to a network device, a self-organizing network and / or minimization of drive test (SON and / or MDT) related report for the NTN cell, wherein the SON and / or MDT related report comprises information on a first TA or information on a plurality of second TAs.

Description

Information reporting method, equipment, device and storage medium

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application number 202410115910.8, filed on January 26, 2024, entitled “Information reporting method, equipment, device and storage medium”, which is incorporated herein by reference in its entirety. Technical Field

[0003] The present disclosure relates to the field of wireless communication technologies, and in particular to an information reporting method, device, apparatus, and storage medium. Background Art

[0004] Self-Organizing Network (SON) and / or Minimization of Drive Test (MDT) related reports are various SON and / or MDT related records sent by the terminal (or user equipment, UE) to the network side, including Radio Link Failure (RLF) or Handover Failure (HOF) reports, Connection Establishment Failure (CEF) reports, Mobility History Information (MHI) reports, Random Access Channel (RACH) reports, Successful Handover Report (SHR), Successful PSCell change or addition Report (SPR), Logged MDT reports, Immediate MDT reports, etc. These SON and / or MDT related reports can be used to optimize the parameters or configuration information of each node on the access network side, or for operators to collect big data for analysis.

[0005] In SON and / or MDT related reports, the terminal needs to carry the information of the unique tracking area (TA) where the terminal is located when the relevant report content is recorded. However, for non-terrestrial network (NTN) cells that broadcast multiple TAs, the terminal cannot determine the unique TA it is in. In this case, there is no clear solution for how the terminal reports TA information. Summary of the Invention

[0006] In response to the problems existing in the related technologies, the present disclosure provides an information reporting method, equipment, device and storage medium.

[0007] In a first aspect, the present disclosure provides an information reporting method, applied to a terminal, comprising:

[0008] In the case where a non-terrestrial network NTN cell broadcasts multiple tracking areas TA, a self-organizing network and / or minimization of drive tests SON and / or MDT related report for the NTN cell is sent to the network device, and the SON and / or MDT related report contains information of a first TA or information of multiple second TAs.

[0009] In some embodiments, a first TA is any of the following:

[0010] The TA where the terminal is located, derived by the terminal based on the terminal's geographical location;

[0011] A specific TA in the TA list broadcast by the NTN cell;

[0012] A specific TA among multiple TAs that the terminal can access;

[0013] The only TA that a terminal can access.

[0014] In some embodiments, the plurality of second TAs are any of the following:

[0015] All TAs in the TA list broadcast by the NTN cell;

[0016] Multiple TAs that a terminal can access.

[0017] In some embodiments, the TAs accessible to the terminal include:

[0018] The intersection of the TA list broadcast by the NTN cell and the TA list received by the NAS layer of the terminal; and / or,

[0019] All TAs in the TA list broadcast by the NTN cell except the TAs that the terminal is prohibited from accessing.

[0020] In some embodiments, the SON and / or MDT related reports further include information on the number of multiple TAs broadcast by the NTN cell.

[0021] In some embodiments, sending a SON and / or MDT related report for an NTN cell to a network device includes:

[0022] The SON and / or MDT related report for the NTN cell is sent to the network device via a first message, where the first message includes time information when the terminal records the report content of the SON and / or MDT related report.

[0023] In some embodiments, the time information includes:

[0024] Absolute time information; or,

[0025] Relative time information: The relative time information is information about the time when the terminal records the report content of the SON and / or MDT-related report relative to the reference time. The reference time is the time when the configuration information corresponding to the SON and / or MDT-related report is received, or the time indicated by the absolute time information carried in the configuration information corresponding to the SON and / or MDT-related report, or the time when the SON and / or MDT-related report is sent.

[0026] In a second aspect, the present disclosure further provides an information reporting method, applied to a network device, comprising:

[0027] In the case where a non-terrestrial network NTN cell broadcasts multiple tracking areas TA, a self-organizing network and / or minimization of drive tests SON and / or MDT related report for the NTN cell sent by the receiving terminal is received. The SON and / or MDT related report includes information of a first TA or information of multiple second TAs.

[0028] In some embodiments, a first TA is any of the following:

[0029] The TA where the terminal is located, derived by the terminal based on the terminal's geographical location;

[0030] A specific TA in the TA list broadcast by the NTN cell;

[0031] A specific TA among multiple TAs that the terminal can access;

[0032] The only TA that a terminal can access.

[0033] In some embodiments, the plurality of second TAs are any of the following:

[0034] All TAs in the TA list broadcast by the NTN cell;

[0035] Multiple TAs that a terminal can access.

[0036] In some embodiments, the TAs accessible to the terminal include:

[0037] The intersection of the TA list broadcast by the NTN cell and the TA list received by the NAS layer of the terminal; and / or,

[0038] All TAs in the TA list broadcast by the NTN cell except the TAs that the terminal is prohibited from accessing.

[0039] In some embodiments, the SON and / or MDT related reports further include information on the number of multiple TAs broadcast by the NTN cell.

[0040] In some embodiments, receiving a SON and / or MDT-related report for an NTN cell sent by a terminal includes:

[0041] A SON and / or MDT related report for an NTN cell is received from a terminal through a first message, where the first message includes time information when the terminal records the report content of the SON and / or MDT related report.

[0042] In some embodiments, the time information includes:

[0043] Absolute time information; or,

[0044] Relative time information: The relative time information is information about the time when the terminal records the report content of the SON and / or MDT-related report relative to the reference time. The reference time is the time when the configuration information corresponding to the SON and / or MDT-related report is received, or the time indicated by the absolute time information carried in the configuration information corresponding to the SON and / or MDT-related report, or the time when the SON and / or MDT-related report is sent.

[0045] In some embodiments, the method further comprises:

[0046] Determine TA enhancement information based on one or more of the SON and / or MDT related reports, time information of the terminal recording the report content of the SON and / or MDT related reports, geographical location information of the terminal, and ephemeris information;

[0047] Send any of the following to other network devices or data collection nodes:

[0048] SON and / or MDT related reports for NTN cells modified based on TA enhancement information; or

[0049] SON and / or MDT related reports, and TA enhancement information.

[0050] In a third aspect, the present disclosure further provides a terminal, including a memory, a transceiver, and a processor;

[0051] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0052] In the case where a non-terrestrial network NTN cell broadcasts multiple tracking areas TA, a self-organizing network and / or minimization of drive tests SON and / or MDT related report for the NTN cell is sent to the network device, and the SON and / or MDT related report contains information of a first TA or information of multiple second TAs.

[0053] In some embodiments, a first TA is any of the following:

[0054] The TA where the terminal is located, derived by the terminal based on the terminal's geographical location;

[0055] A specific TA in the TA list broadcast by the NTN cell;

[0056] A specific TA among multiple TAs that the terminal can access;

[0057] The only TA that a terminal can access.

[0058] In some embodiments, the plurality of second TAs are any of the following:

[0059] All TAs in the TA list broadcast by the NTN cell;

[0060] Multiple TAs that a terminal can access.

[0061] In some embodiments, the TAs accessible to the terminal include:

[0062] The intersection of the TA list broadcast by the NTN cell and the TA list received by the NAS layer of the terminal; and / or,

[0063] All TAs in the TA list broadcast by the NTN cell except the TAs that the terminal is prohibited from accessing.

[0064] In some embodiments, the SON and / or MDT related reports further include information on the number of multiple TAs broadcast by the NTN cell.

[0065] In some embodiments, sending a SON and / or MDT related report for an NTN cell to a network device includes:

[0066] The SON and / or MDT related report for the NTN cell is sent to the network device via a first message, where the first message includes time information when the terminal records the report content of the SON and / or MDT related report.

[0067] In some embodiments, the time information includes:

[0068] Absolute time information; or,

[0069] Relative time information: The relative time information is information about the time when the terminal records the report content of the SON and / or MDT-related report relative to the reference time. The reference time is the time when the configuration information corresponding to the SON and / or MDT-related report is received, or the time indicated by the absolute time information carried in the configuration information corresponding to the SON and / or MDT-related report, or the time when the SON and / or MDT-related report is sent.

[0070] In a fourth aspect, the present disclosure further provides a network device, including a memory, a transceiver, and a processor;

[0071] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0072] In the case where a non-terrestrial network NTN cell broadcasts multiple tracking areas TA, a self-organizing network and / or minimization of drive tests SON and / or MDT related report for the NTN cell sent by the receiving terminal is received. The SON and / or MDT related report includes information of a first TA or information of multiple second TAs.

[0073] In some embodiments, a first TA is any of the following:

[0074] The TA where the terminal is located, derived by the terminal based on the terminal's geographical location;

[0075] A specific TA in the TA list broadcast by the NTN cell;

[0076] A specific TA among multiple TAs that the terminal can access;

[0077] The only TA that a terminal can access.

[0078] In some embodiments, the plurality of second TAs are any of the following:

[0079] All TAs in the TA list broadcast by the NTN cell;

[0080] Multiple TAs that a terminal can access.

[0081] In some embodiments, the TAs accessible to the terminal include:

[0082] The intersection of the TA list broadcast by the NTN cell and the TA list received by the NAS layer of the terminal; and / or,

[0083] All TAs in the TA list broadcast by the NTN cell except the TAs that the terminal is prohibited from accessing.

[0084] In some embodiments, the SON and / or MDT related reports further include information on the number of multiple TAs broadcast by the NTN cell.

[0085] In some embodiments, receiving a SON and / or MDT-related report for an NTN cell sent by a terminal includes:

[0086] A SON and / or MDT related report for an NTN cell is received from a terminal through a first message, where the first message includes time information when the terminal records the report content of the SON and / or MDT related report.

[0087] In some embodiments, the time information includes:

[0088] Absolute time information; or,

[0089] Relative time information: The relative time information is information about the time when the terminal records the report content of the SON and / or MDT-related report relative to the reference time. The reference time is the time when the configuration information corresponding to the SON and / or MDT-related report is received, or the time indicated by the absolute time information carried in the configuration information corresponding to the SON and / or MDT-related report, or the time when the SON and / or MDT-related report is sent.

[0090] In some embodiments, the operations further include:

[0091] Determine TA enhancement information based on one or more of the SON and / or MDT related reports, time information of the terminal recording the report content of the SON and / or MDT related reports, geographical location information of the terminal, and ephemeris information;

[0092] Send any of the following to other network devices or data collection nodes:

[0093] SON and / or MDT related reports for NTN cells modified based on TA enhancement information; or

[0094] SON and / or MDT related reports, and TA enhancement information.

[0095] In a fifth aspect, the present disclosure further provides an information reporting device, comprising:

[0096] The first sending unit is configured to send a self-organizing network and / or minimization of drive tests (SON) and / or MDT related report for the NTN cell to a network device when the non-terrestrial network (NTN) cell broadcasts multiple tracking areas (TAs). The SON and / or MDT related report includes information about one first TA or information about multiple second TAs.

[0097] In a sixth aspect, the present disclosure further provides an information reporting device, comprising:

[0098] The receiving unit is configured to receive, when a non-terrestrial network (NTN) cell broadcasts multiple tracking areas (TAs), a self-organizing network and / or minimization of drive tests (SON) and / or MDT related report for the NTN cell sent by the terminal, where the SON and / or MDT related report includes information of a first TA or information of multiple second TAs.

[0099] In the seventh aspect, the present disclosure also provides a non-transitory readable storage medium, which stores a computer program, and the computer program is used to enable the processor to execute the information reporting method described in the first aspect as described above, or execute the information reporting method described in the second aspect as described above.

[0100] In an eighth aspect, the present disclosure further provides a communication device, in which a computer program is stored, and the computer program is used to enable the communication device to execute the information reporting method described in the first aspect, or execute the information reporting method described in the second aspect.

[0101] In the ninth aspect, the present disclosure also provides a processor-readable storage medium, which stores a computer program, and the computer program is used to enable the processor to execute the information reporting method described in the first aspect as described above, or execute the information reporting method described in the second aspect as described above.

[0102] In the tenth aspect, the present disclosure further provides a chip product, in which a computer program is stored, and the computer program is used to enable the chip product to execute the information reporting method described in the first aspect as described above, or execute the information reporting method described in the second aspect as described above.

[0103] The information reporting method, device, apparatus, and storage medium provided in the present disclosure address scenarios where multiple TAs are broadcast in an NTN cell. A terminal can carry information about a first TA or multiple second TAs when reporting SON and / or MDT-related reports. This allows the network to determine the single TA where the terminal is located based on the information about the first TA or multiple second TAs, or to narrow the TA range as much as possible when determining the TA where the terminal is located, thereby facilitating subsequent network optimization or big data analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0104] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or related technologies, the following is a brief introduction to the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0105] FIG1 is a diagram showing an example of a traditional TAI update provided by related art;

[0106] FIG2 is an example diagram of soft TAI update provided by related technology;

[0107] FIG3 is a flow chart of one of the information reporting methods provided in an embodiment of the present disclosure;

[0108] FIG4 is a second flow chart of the information reporting method provided in an embodiment of the present disclosure;

[0109] FIG5 is a schematic structural diagram of a terminal provided in an embodiment of the present disclosure;

[0110] FIG6 is a schematic diagram of the structure of a network device provided in an embodiment of the present disclosure;

[0111] FIG7 is a schematic diagram of a structure of an information reporting device according to an embodiment of the present disclosure;

[0112] FIG8 is a second structural diagram of the information reporting device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0113] In the embodiments of the present disclosure, the term "and / or" describes the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0114] In the embodiments of the present disclosure, the term "plurality" refers to two or more than two, and other quantifiers are similar thereto.

[0115] In the embodiments of the present disclosure, the terms "first," "second," and the like are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present disclosure can be implemented in an order other than that illustrated or described herein. Furthermore, the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects. For example, the first object can be one or more.

[0116] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure and not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present disclosure.

[0117] In order to facilitate a clearer understanding of the technical solutions of the various embodiments of the present disclosure, some technical contents related to the various embodiments of the present disclosure are first introduced.

[0118] The traditional Tracking Area Identity (TAI) update method (hard TAI update: meaning that each cell broadcasts only one registration area identity) may cause the boundary UE to update the registration area back and forth when the cell moves with the satellite across the registration area boundary. Figure 1 is an example diagram of the traditional TAI update provided by the relevant technology. As shown in Figure 1, due to satellite movement, the terminal is in the area corresponding to different Tracking Area Codes (TAC) at different times. For example, at time T1, the terminal is in the area corresponding to TAC2, at time T2, the terminal is in the area corresponding to TAC1, and at time T3, the terminal is in the area corresponding to TAC2. This will cause the terminal to frequently update the registration area, increasing unnecessary signaling overhead.

[0119] In order to reduce the paging overhead of frequent registration area updates caused by cells passing through the registration area boundary, a soft TAI update solution is introduced for scenarios such as NTN earth moving: each cell can broadcast more than one TA list per Public Land Mobile Network (PLMN), and the TA area is bound to the ground fixed area. When the UE moves in the TA list, the registration area update process caused by changing the TA will not be triggered. Only when the UE moves out of the TA list broadcast by the network will the UE trigger the registration area update process. Figure 2 is an example diagram of soft TAI update provided by the relevant technology. As shown in Figure 2, for cells in the boundary area of ​​TA1 and TA2, the network broadcasts the TAI of TA1 and TA2, i.e., TAI1 and TAI2, so that when the UE moves in the TA1 and TA2 areas, the registration area update process caused by changing the TA will not be triggered.

[0120] When the network broadcasts multiple TAs, the base station node needs to report all broadcast TAIs and (if available) the TAI mapped based on the UE's geographic location to the core network node (such as the Access and Mobility Management Function (AMF)). For this purpose, two optional pieces of information are added to the NG interface message of the relevant technology: an additional TAI list for transmitting multiple broadcast TAIs (consistent with the TAI list broadcast over the air interface), and a single TAI mapped based on the possible UE geographic location.

[0121] Regarding the TA information used to identify the backhaul cell location area, the relevant technologies require reporting a unique TA identifier in SON and / or MDT related reports. However, the NTN network may broadcast multiple TAs in a cell, and how to report TA information in this case is still unclear.

[0122] FIG3 is a flow chart of an information reporting method according to an embodiment of the present disclosure. The method is applied to a terminal. As shown in FIG3 , the method includes the following steps:

[0123] Step 300: When a non-terrestrial network (NTN) cell broadcasts multiple tracking areas (TAs), a self-organizing network and / or minimization of drive tests (SON) and / or MDT related report for the NTN cell is sent to a network device. The SON and / or MDT related report includes information of a first TA or information of multiple second TAs.

[0124] Specifically, in the present disclosure, for an NTN cell that broadcasts multiple TAs, when a terminal reports a SON and / or MDT-related report related to the NTN cell, information of a first TA or information of multiple second TAs may be carried in the SON and / or MDT-related report. The first TA or multiple second TAs are used to indicate the TA range where the terminal is located. The network side may determine the single TA where the terminal is located based on the information of the first TA or the information of the multiple second TAs, or narrow the TA range as much as possible when determining the TA where the terminal is located.

[0125] Broadcasting multiple TAs refers to broadcasting multiple TAs for one cell (corresponding to one cell identity).

[0126] In some implementations, broadcasting multiple TAs may be broadcasting a TA list, where the TA list includes multiple TAs.

[0127] In this disclosure, SON and / or MDT-related reports may include various reports related to SON and / or MDT, which are not specifically limited in this disclosure. For example, SON and / or MDT-related reports may include: RLF or HOF reports, CEF reports, MHI reports, RACH reports, SHR, SPR, Logged MDT reports, Immediate MDT reports, etc.

[0128] The present disclosure does not limit the specific TAs referred to by the first TA and the second TA, as long as they can be used to indicate the TA range where the terminal is located to the network side.

[0129] The information reporting method provided by the embodiments of the present disclosure addresses scenarios where NTN cells broadcast multiple TAs. A terminal can carry information about a first TA or multiple second TAs when reporting SON and / or MDT-related reports. This allows the network to determine the single TA where the terminal is located based on the information about the first TA or multiple second TAs, or to narrow the TA range as much as possible when determining the TA where the terminal is located, thereby facilitating subsequent network optimization or big data analysis.

[0130] In some embodiments, a first TA is any of the following:

[0131] (1) The TA where the terminal is located is derived by the terminal based on the terminal's geographical location.

[0132] For example, if the terminal can deduce the single TA it is in based on its own geographical location, the terminal can report the TA information, such as TAI, in SON and / or MDT related reports. The network side can determine the TA of the terminal based on the TA information.

[0133] It can be understood that the TA where the terminal is located, which is derived by the terminal based on its own geographical location, is one of multiple TAs broadcast by the NTN cell.

[0134] In some embodiments, the terminal may report its geographical location information to the network side, and the network side may map the terminal's geographical location information to obtain the TA where the terminal is actually located when executing the record report content.

[0135] (2) A specific TA in the TA list broadcast by the NTN cell. The present disclosure does not specify which TA in the TA list the specific TA is, as long as the terminal and the network have a consistent understanding of the specific TA.

[0136] For example, the specific TA may be the first TA, the last TA, or the TA located in the middle in the TA list.

[0137] The network side may determine which TA list the specific TA belongs to based on the specific TA, and then determine the single TA where the terminal is located from the TA list based on other information, or further narrow the TA range based on the TA list.

[0138] (3) A specific TA among multiple TAs accessible to the terminal. The present disclosure does not specify which TA the terminal can access, as long as the terminal and the network have a consistent understanding of the specific TA. For example, the specific TA can be the first TA in the list of TAs accessible to the terminal.

[0139] The network side can determine, based on the specific TA, which terminal's accessible TA list the specific TA belongs to, and then determine the single TA the terminal is located in from the terminal's accessible TA list based on other information, or further narrow the range of TAs based on the terminal's accessible TA list. The terminal and the network side can use the same method to determine the terminal's accessible TA list to ensure consistent understanding of the terminal's accessible TA list.

[0140] For example, the terminal can determine the intersection of the TA list broadcast by the network received by the terminal's access stratum (AS) and the TAI list received by the terminal's non-access stratum (NAS) from processes such as mobile registration updates, and use the TA in the intersection as the terminal's accessible TA.

[0141] Alternatively, the terminal may exclude the TAs prohibited from terminal access in the Forbidden Tracking Area list obtained from the terminal's NAS layer from the TA list broadcast by the network received by the terminal's AS layer, and use the remaining TAs after excluding the prohibited TAs as TAs accessible to the terminal.

[0142] Alternatively, the terminal may take the TAs in the above intersection and the remaining TAs after excluding the access-prohibited TAs as TAs accessible to the terminal.

[0143] In some embodiments, the forbidden tracking area list includes: tracking areas where roaming is prohibited in a 5G network (5GS forbidden tracking areas for roaming), and / or tracking areas where regional provision of service is prohibited in a 5G network (5GS forbidden tracking areas for regional provision of service).

[0144] (4) The only TA that the terminal can access.

[0145] For example, if there is only one TA accessible to the terminal, the terminal may report information about the one TA accessible to the terminal in a SON and / or MDT related report, and the network side may determine the TA where the terminal is located based on the information about the TA.

[0146] By reporting the information of a single TA, signaling overhead can be saved, and the multiple optional solutions for the first TA also improve the flexibility of TA information reporting.

[0147] In some embodiments, the plurality of second TAs are any of the following:

[0148] (1) All TAs in the TA list broadcast by the NTN cell.

[0149] In this case, the network side may determine a single TA where the terminal is located from the TAs reported by the terminal based on other information, or further narrow the TA range based on the TAs reported by the terminal.

[0150] (2) Multiple TAs that a terminal can access.

[0151] For the multiple TAs accessible to the terminal, please refer to the above description of the TA accessible to the terminal (or the list of TAs accessible to the terminal), which will not be repeated here.

[0152] In some embodiments, the TAs accessible to the terminal include:

[0153] The intersection of the TA list broadcast by the NTN cell and the TA list received by the NAS layer of the terminal; and / or other TAs in the TA list broadcast by the NTN cell except the TAs prohibited from accessing by the terminal.

[0154] For example, the terminal can determine the intersection of the TA list broadcast by the network received by the terminal's AS layer and the TAI list received by the terminal's NAS layer from processes such as mobile registration update, and use the TA in the intersection as the terminal-accessible TA; or, the terminal can exclude the TAs prohibited from terminal access in the prohibited tracking area list obtained from the terminal's NAS layer from the TA list broadcast by the network received by the terminal's AS layer, and use the TAs remaining after excluding the prohibited access TAs as the terminal-accessible TAs; or, the terminal can use the TA in the above-mentioned intersection and the TA remaining after excluding the prohibited access TAs as the terminal-accessible TAs.

[0155] By reporting multiple second TAs instead of a specific TA, subsequent processing operations on the network side can be reduced, the complexity of network side processing is reduced, and it helps the network side to more accurately determine the TA range of the terminal, thereby improving the accuracy of subsequent network optimization or big data analysis.

[0156] In some embodiments, the SON and / or MDT related reports also include information on the number of multiple TAs broadcast by the NTN cell, that is, the terminal also reports the number of TAs broadcast by the NTN cell, which provides more auxiliary information for the network side when determining the TA range where the terminal is located, enabling the network side to more accurately determine the TA range where the terminal is located.

[0157] In some embodiments, when reporting a specific TA in the TA list broadcast by the NTN cell, the terminal may simultaneously report the number of TAs in the TA list, so as to help the network side more accurately determine to which TA list the specific TA belongs.

[0158] In some embodiments, sending a SON and / or MDT related report for an NTN cell to a network device includes:

[0159] The SON and / or MDT related report for the NTN cell is sent to the network device via a first message, where the first message includes time information when the terminal records the report content of the SON and / or MDT related report.

[0160] For example, the terminal may carry the time information in which the terminal records the report content of the SON and / or MDT related report in the SON and / or MDT related report, or the terminal may report the time information together with the SON and / or MDT related report through the first message in addition to the SON and / or MDT related report.

[0161] The time information reported by the terminal to record the content of the SON and / or MDT-related reports can assist subsequent network-side nodes in performing specific analysis on the information at the corresponding time when receiving the SON and / or MDT-related reports from the terminal. For example, the ephemeris information corresponding to the recorded time generated by the terminal and the geographical location information reported by the terminal can be used to determine the cell in which the terminal was located at that time, its position within the cell, its actual TA, and its position within the actual TA.

[0162] By reporting the time information of the terminal recording the report content of the SON and / or MDT-related report, the network side can understand the exact time when the terminal records the report content of the SON and / or MDT-related report, so that a more comprehensive analysis can be performed in combination with other information at the corresponding time, thereby improving the accuracy of the network side in determining the TA range where the terminal is located.

[0163] In some embodiments, the time information includes:

[0164] (1) Absolute time information, which is the absolute time at which the terminal records the report content of the SON and / or MDT-related report. The specific time format of the absolute time information is not limited in this disclosure. For example, it can be an absolute time in the Global Positioning System (GPS) time format or the Coordinated Universal Time (UTC) time format.

[0165] Reporting the time information of the terminal recording the report content of the SON and / or MDT related report in the form of absolute time information can reduce subsequent processing operations on the network side and reduce the complexity of network side processing.

[0166] (2) Relative time information, which is information about the time when the terminal records the report content of the SON and / or MDT-related report relative to a reference time. The reference time is the time when the configuration information corresponding to the SON and / or MDT-related report is received, or the time indicated by the absolute time information carried in the configuration information corresponding to the SON and / or MDT-related report, or the time when the SON and / or MDT-related report is sent.

[0167] Reporting the time information of the terminal recording the report content of the SON and / or MDT related report in the form of relative time information is beneficial to saving signaling overhead.

[0168] In some implementations, for SON and / or MDT related reports configured by the network, such as SHR or SPR, the terminal may use the time when the terminal receives the configuration information as a reference time and report the relative time information between the time(s) at which the report content is recorded and the reference time.

[0169] In some implementations, the configuration information for SON and / or MDT-related reports may carry absolute time information. The time indicated by the absolute time information is a reference time, and the terminal reports the relative time information between the time(s) at which the report content is recorded and the reference time. The terminal may also simultaneously report the absolute time information delivered in the configuration information.

[0170] In some implementations, when a terminal reports a SON and / or MDT-related report, the signaling reported by the terminal includes the relative time between the time(s) at which the terminal records the report content and the time at which the SON and / or MDT-related report is sent. The time at which the SON and / or MDT-related report is sent serves as a reference time. Upon receiving the relative time information reported by the terminal, the network can reversely infer the absolute time of the time(s) at which the terminal records the report content.

[0171] The flexibility of time information reporting is improved through multiple optional reporting methods of time information.

[0172] FIG4 is a second flow chart of an information reporting method provided in an embodiment of the present disclosure. The method is applied to a network device (e.g., a base station). As shown in FIG4 , the method includes the following steps:

[0173] Step 400: When a non-terrestrial network (NTN) cell broadcasts multiple tracking areas (TAs), a self-organizing network and / or minimization of drive tests (SON) and / or MDT related report for the NTN cell sent by a terminal is received, where the SON and / or MDT related report includes information of a first TA or information of multiple second TAs.

[0174] Specifically, in the present disclosure, for an NTN cell that broadcasts multiple TAs, when a terminal reports a SON and / or MDT-related report related to the NTN cell, information of a first TA or information of multiple second TAs may be carried in the SON and / or MDT-related report. The first TA or multiple second TAs are used to indicate the TA range where the terminal is located. The network side may determine the single TA where the terminal is located based on the information of the first TA or the information of the multiple second TAs, or narrow the TA range as much as possible when determining the TA where the terminal is located.

[0175] Broadcasting multiple TAs refers to broadcasting multiple TAs for one cell (corresponding to one cell identity).

[0176] In some implementations, broadcasting multiple TAs may be broadcasting a TA list, where the TA list includes multiple TAs.

[0177] In this disclosure, SON and / or MDT-related reports may include various reports related to SON and / or MDT, which are not specifically limited in this disclosure. For example, SON and / or MDT-related reports may include: RLF or HOF reports, CEF reports, MHI reports, RACH reports, SHR, SPR, Logged MDT reports, Immediate MDT reports, etc.

[0178] The present disclosure does not limit the specific TAs referred to by the first TA and the second TA, as long as they can be used to indicate the TA range where the terminal is located to the network side.

[0179] The information reporting method provided by the embodiments of the present disclosure addresses scenarios where NTN cells broadcast multiple TAs. A terminal can carry information about a first TA or multiple second TAs when reporting SON and / or MDT-related reports. This allows the network to determine the single TA where the terminal is located based on the information about the first TA or multiple second TAs, or to narrow the TA range as much as possible when determining the TA where the terminal is located, thereby facilitating subsequent network optimization or big data analysis.

[0180] In some embodiments, a first TA is any of the following:

[0181] (1) The TA where the terminal is located is derived by the terminal based on the terminal's geographical location.

[0182] For example, if the terminal can deduce the single TA it is in based on its own geographical location, the terminal can report the TA information, such as TAI, in SON and / or MDT related reports. The network side can determine the TA of the terminal based on the TA information.

[0183] It can be understood that the TA where the terminal is located, which is derived by the terminal based on its own geographical location, is one of multiple TAs broadcast by the NTN cell.

[0184] In some embodiments, the terminal may report its geographical location information to the network side, and the network side may map the terminal's geographical location information to obtain the TA where the terminal is actually located when executing the record report content.

[0185] (2) A specific TA in the TA list broadcast by the NTN cell. The present disclosure does not specify which TA in the TA list the specific TA is, as long as the terminal and the network have a consistent understanding of the specific TA.

[0186] For example, the specific TA may be the first TA, the last TA, or the TA located in the middle in the TA list.

[0187] The network side may determine which TA list the specific TA belongs to based on the specific TA, and then determine the single TA where the terminal is located from the TA list based on other information, or further narrow the TA range based on the TA list.

[0188] (3) A specific TA among multiple TAs accessible to the terminal. The present disclosure does not specify which TA the terminal can access, as long as the terminal and the network have a consistent understanding of the specific TA. For example, the specific TA can be the first TA in the list of TAs accessible to the terminal.

[0189] The network side can determine, based on the specific TA, which terminal's accessible TA list the specific TA belongs to, and then determine the single TA the terminal is located in from the terminal's accessible TA list based on other information, or further narrow the range of TAs based on the terminal's accessible TA list. The terminal and the network side can use the same method to determine the terminal's accessible TA list to ensure consistent understanding of the terminal's accessible TA list.

[0190] For example, the terminal may determine the intersection of the TA list broadcast by the network received by the AS layer of the terminal and the TAI list received by the NAS layer of the terminal from a process such as mobile registration update, and use the TA in the intersection as the TA accessible to the terminal.

[0191] Alternatively, the terminal may exclude the TAs prohibited from terminal access in the Forbidden Tracking Area list obtained from the terminal's NAS layer from the TA list broadcast by the network received by the terminal's AS layer, and use the remaining TAs after excluding the prohibited TAs as TAs accessible to the terminal.

[0192] Alternatively, the terminal may take the TAs in the above intersection and the remaining TAs after excluding the access-prohibited TAs as TAs accessible to the terminal.

[0193] In some embodiments, the forbidden tracking area list includes: tracking areas where roaming is prohibited in a 5G network (5GS forbidden tracking areas for roaming), and / or tracking areas where regional provision of service is prohibited in a 5G network (5GS forbidden tracking areas for regional provision of service).

[0194] (4) The only TA that the terminal can access.

[0195] For example, if there is only one TA accessible to the terminal, the terminal may report information about the one TA accessible to the terminal in a SON and / or MDT related report, and the network side may determine the TA where the terminal is located based on the information about the TA.

[0196] By reporting the information of a single TA, signaling overhead can be saved, and the multiple optional solutions for the first TA also improve the flexibility of TA information reporting.

[0197] In some embodiments, the plurality of second TAs are any of the following:

[0198] (1) All TAs in the TA list broadcast by the NTN cell.

[0199] In this case, the network side may determine a single TA where the terminal is located from the TAs reported by the terminal based on other information, or further narrow the TA range based on the TAs reported by the terminal.

[0200] (2) Multiple TAs that a terminal can access.

[0201] For the multiple TAs accessible to the terminal, please refer to the above description of the TA accessible to the terminal (or the list of TAs accessible to the terminal), which will not be repeated here.

[0202] In some embodiments, the TAs accessible to the terminal include:

[0203] The intersection of the TA list broadcast by the NTN cell and the TA list received by the NAS layer of the terminal; and / or other TAs in the TA list broadcast by the NTN cell except the TAs prohibited from accessing by the terminal.

[0204] For example, the terminal can determine the intersection of the TA list broadcast by the network received by the terminal's AS layer and the TAI list received by the terminal's NAS layer from processes such as mobile registration update, and use the TA in the intersection as the terminal-accessible TA; or, the terminal can exclude the TAs prohibited from terminal access in the prohibited tracking area list obtained from the terminal's NAS layer from the TA list broadcast by the network received by the terminal's AS layer, and use the TAs remaining after excluding the prohibited access TAs as the terminal-accessible TAs; or, the terminal can use the TA in the above-mentioned intersection and the TA remaining after excluding the prohibited access TAs as the terminal-accessible TAs.

[0205] By reporting multiple second TAs instead of a specific TA, subsequent processing operations on the network side can be reduced, the complexity of network side processing is reduced, and it helps the network side to more accurately determine the TA range of the terminal, thereby improving the accuracy of subsequent network optimization or big data analysis.

[0206] In some embodiments, the SON and / or MDT related reports also include information on the number of multiple TAs broadcast by the NTN cell, that is, the terminal also reports the number of TAs broadcast by the NTN cell, which provides more auxiliary information for the network side when determining the TA range where the terminal is located, enabling the network side to more accurately determine the TA range where the terminal is located.

[0207] In some embodiments, when reporting a specific TA in the TA list broadcast by the NTN cell, the terminal may simultaneously report the number of TAs in the TA list, so as to help the network side more accurately determine to which TA list the specific TA belongs.

[0208] In some embodiments, receiving a SON and / or MDT-related report for an NTN cell sent by a terminal includes:

[0209] A SON and / or MDT related report for an NTN cell is received from a terminal through a first message, where the first message includes time information when the terminal records the report content of the SON and / or MDT related report.

[0210] For example, the terminal may carry the time information in which the terminal records the report content of the SON and / or MDT related report in the SON and / or MDT related report, or the terminal may report the time information together with the SON and / or MDT related report through the first message in addition to the SON and / or MDT related report.

[0211] The time information reported by the terminal to record the content of the SON and / or MDT-related reports can assist subsequent network-side nodes in performing specific analysis on the information at the corresponding time when receiving the SON and / or MDT-related reports from the terminal. For example, the ephemeris information corresponding to the recorded time generated by the terminal and the geographical location information reported by the terminal can be used to determine the cell in which the terminal was located at that time, its position within the cell, its actual TA, and its position within the actual TA.

[0212] By reporting the time information of the terminal recording the report content of the SON and / or MDT-related report, the network side can understand the exact time when the terminal records the report content of the SON and / or MDT-related report, so that a more comprehensive analysis can be performed in combination with other information at the corresponding time, thereby improving the accuracy of the network side in determining the TA range where the terminal is located.

[0213] In some embodiments, the time information includes:

[0214] (1) Absolute time information, which is the absolute time when the terminal records the report content of the SON and / or MDT related report. The specific time format of the absolute time information is not limited in this disclosure. For example, it can be an absolute time in GPS time format, an absolute time in UTC time format, etc.

[0215] Reporting the time information of the terminal recording the report content of the SON and / or MDT related report in the form of absolute time information can reduce subsequent processing operations on the network side and reduce the complexity of network side processing.

[0216] (2) Relative time information, which is information about the time when the terminal records the report content of the SON and / or MDT-related report relative to a reference time. The reference time is the time when the configuration information corresponding to the SON and / or MDT-related report is received, or the time indicated by the absolute time information carried in the configuration information corresponding to the SON and / or MDT-related report, or the time when the SON and / or MDT-related report is sent.

[0217] Reporting the time information of the terminal recording the report content of the SON and / or MDT related report in the form of relative time information is beneficial to saving signaling overhead.

[0218] In some implementations, for SON and / or MDT related reports configured by the network, such as SHR or SPR, the terminal may use the time when the terminal receives the configuration information as a reference time and report the relative time information between the time(s) at which the report content is recorded and the reference time.

[0219] In some implementations, the configuration information for SON and / or MDT-related reports may carry absolute time information. The time indicated by the absolute time information is a reference time, and the terminal reports the relative time information between the time(s) at which the report content is recorded and the reference time. The terminal may also simultaneously report the absolute time information delivered in the configuration information.

[0220] In some implementations, when a terminal reports a SON and / or MDT-related report, the signaling reported by the terminal includes the relative time between the time(s) at which the terminal records the report content and the time at which the SON and / or MDT-related report is sent. The time at which the SON and / or MDT-related report is sent serves as a reference time. Upon receiving the relative time information reported by the terminal, the network can reversely infer the absolute time of the time(s) at which the terminal records the report content.

[0221] The flexibility of time information reporting is improved through multiple optional reporting methods of time information.

[0222] In some embodiments, the method further comprises:

[0223] Determine TA enhancement information based on one or more of the SON and / or MDT related reports, time information of the terminal recording the report content of the SON and / or MDT related reports, geographical location information of the terminal, and ephemeris information;

[0224] Send any of the following to other network devices or data collection nodes:

[0225] SON and / or MDT related reports for NTN cells modified based on TA enhancement information; or

[0226] SON and / or MDT related reports, and TA enhancement information.

[0227] In some implementations, the other network devices may be other network-side nodes that perform parameter or configuration information optimization.

[0228] In some implementations, the data collection node may be a trace collection entity (TCE) of an operator.

[0229] After the network device receives the SON and / or MDT related report reported by the terminal, it can enhance the TA information based on the TA information carried in the SON and / or MDT related report, combined with the time information of the terminal recording the report content of the SON and / or MDT related report, the terminal's geographic location information, ephemeris information, etc., to obtain TA enhancement information. The TA enhancement information is also used to indicate the TA range of the terminal, but after enhancement, it is more accurate than the TA information carried in the SON and / or MDT related report or further narrows the TA range.

[0230] In some implementations, when the terminal carries its geographic location information in SON and / or MDT related reports, the network device may map the terminal's geographic location information to obtain the TA where the terminal is actually located when performing the report record, and use the TA information as TA enhancement information.

[0231] In some implementations, when the terminal does not carry the terminal's geographic location information in the SON and / or MDT related reports, or the network device does not support the function of calculating the TA based on the geographic location information, the network device cannot directly derive the TA where the terminal is actually located when executing the report record based on the terminal's geographic location information mapping. The TA range can be narrowed down or a single TA can be determined based on the time information of the record report content reported by the terminal combined with the ephemeris information known on the network side, and the TA information with the narrowed range or the information of the single TA can be used as TA enhancement information.

[0232] Then, the enhanced SON and / or MDT related reports can be sent to other network devices or data collection nodes in two different ways:

[0233] Method 1: Directly modify the TA-related content in the "SON and / or MDT-related reports reported by the terminal" based on the TA enhancement information, and send the modified SON and / or MDT-related reports to other network devices or data collection nodes. This method can reduce the processing complexity of other network devices or data collection nodes after receiving the SON and / or MDT-related reports and reduce signaling overhead.

[0234] Method 2: Without modifying the "SON and / or MDT-related reports reported by the terminal", the "SON and / or MDT-related reports reported by the terminal" are sent together with the TA enhancement information to other network devices or data collection nodes. This method can reduce the processing complexity of the network device sending the SON and / or MDT-related reports.

[0235] By enhancing the SON and / or MDT-related reports reported by the terminal with TA information and then sending them to other network devices or data collection nodes, it helps to improve the accuracy of subsequent network optimization or big data analysis.

[0236] The methods provided in the various embodiments of the present disclosure are based on the same application concept, so the implementation of each method can refer to each other, and the repeated parts will not be repeated.

[0237] The following describes the methods provided in the above embodiments of the present disclosure through examples of specific application scenarios.

[0238] Example 1: Air interface reporting of cell record TA enhancement for SON or MDT purposes.

[0239] Due to satellite movement, the cells and TAs covering different geographical locations may be different at different times. At different times, the ground area covered by NTN cells is also different. Therefore, at different times, NTN cells may broadcast different TAs or multi-TA lists.

[0240] If the NTN cell broadcasts a single TA (tracking area code), the UE handles it in the same way as for the TN cell, i.e., when the UE reports SON and / or MDT related reports, the new radio (NR) cell information in the CGI-Info-Logging (cell global identity code information record) structure carried therein carries the unique TAC information corresponding to the cell identity (cell identity) in the system information block (SIB) 1 broadcast.

[0241] If the NTN cell broadcasts the TA list (trackingAreaList), the UE needs to enhance the SON / MDT reporting based on this content. The enhancement method can be:

[0242] (1) Directly report all broadcast TAs (TA lists corresponding to cell identifiers).

[0243] In this mode, the UE directly records the TA list broadcast by SIB1 at the time the UE reports the cell information. Upon receiving this TA list, the network can analyze the terrestrial area covered by the satellite at the time the report was recorded. Alternatively, the network can determine the UE's actual TA based on the possible geographic location information reported by the UE.

[0244] (2) Multiple TAs can be "UE-accessible TAs":

[0245] a. The intersection of the TA list broadcast by the network received by the UE AS layer and the TAI list received by the UE NAS layer from the mobile registration update process; and / or,

[0246] b. The UE AS layer excludes TAs that are prohibited from accessing the Forbidden Tracking Area list obtained from the UE NAS layer from the network broadcast TA list received by the UE AS layer, and finally obtains the TA information that the UE can access. The Forbidden Tracking Area list may include "5GS forbidden tracking areas for roaming" and / or "5GS forbidden tracking areas for regional provision of service".

[0247] In this manner, the UE can further use the stored NAS information to narrow the range of accessible TAs.

[0248] (3) Single TA, which can be:

[0249] a. The TA derived by the UE based on its own geographical location is within the TA list broadcast by the cell.

[0250] b. A specific TA in the cell broadcast TA list, such as the first TA, the last TA, or the TA in the middle. For example, to address fixed TA clustering, the first TA can be used as the index. The UE can also report the number of TAs broadcast by the cell.

[0251] c. The first TA that the UE can access, which is the first TA in (2) above;

[0252] d. In the above (2), the UE can only access a single TA, that is, a single accessible TA.

[0253] Example 2: Enhanced cell logging time information reported over the air interface for SON or MDT purposes.

[0254] Due to satellite movement, the cells and TAs covering different geographic locations may vary at different times. Therefore, it is necessary to record the corresponding time information for the report content recorded by the UE. This can assist network-side nodes in performing specific analysis of the information at the corresponding time when receiving the UE's SON and / or MDT-related reports. For example, the ephemeris information corresponding to the time when the UE recorded the report content and the geographic location information reported by the UE can be used to determine the UE's current cell, location within the cell, actual TA, and location within the actual TA.

[0255] The moment when the UE records the report content may include (exemplarily):

[0256] a. The UE records the time of HOF report or RLF report.

[0257] b. The UE records the time of the CEF report (each entry).

[0258] c. The UE records the time of the RACH report (each entry).

[0259] d. The time when the UE records the SHR or SPR.

[0260] e. The UE records the time of the MHI report (each entry).

[0261] In the UE's SON and / or MDT related reports, the time information can be carried in the following ways:

[0262] (1) Absolute time information.

[0263] The UE records the absolute time information of the moment of reporting the content, such as GPS time information, UTC time information, etc.

[0264] (2)Relative time information.

[0265] Mode 1: For SON and / or MDT-related reports with network configuration, such as SHR or SPR, the time when the UE receives the configuration information is used as the reference time. The configuration information may or may not carry absolute time information (the time information may be in the format of year, month, day, hour, minute, and second). The UE report includes the relative time of the time(s) at which the UE records the report content relative to the reference time, or may also report the absolute time information sent in the possible configuration information.

[0266] Method 2: The signaling used by the UE to report SON and / or MDT-related reports includes the relative time information of the time(s) at which the UE records the report content relative to the time when the UE sends the report. Upon receiving the relative time information reported by the UE, the network can infer the absolute time of the time(s) at which the UE records the report content.

[0267] Example 3: Interface delivery cell logging enhancement for SON or MDT purposes.

[0268] The UE reporting information of SON or MDT may or may not include the UE geographic location information. In the information reported by the base station of the NTN system to the core network, a separate TAI mapped by the base station based on the UE geographic location information may be reported.

[0269] After each UE report for SON or MDT purpose is sent from the UE to the base station, the base station will send the content reported by the UE to the node performing optimization according to the cell information in the report information.

[0270] In the case where the UE carries the UE geographic location information in the SON and / or MDT related reports, the base station can map the UE geographic location information to obtain the TA where the UE is actually located when the record is executed. If the UE does not carry the UE geographic location information in the SON and / or MDT related reports, or the base station does not support the function of calculating the TA based on the geographic location information, the base station cannot directly obtain the TA where the UE is actually located when the record is executed based on the UE geographic location information mapping. The TA range can be narrowed down or a single TA can be determined based on the time information carried in the UE reporting information combined with the ephemeris information known to the network side, and the TA enhancement information of the narrowed range can be sent to the node performing the optimization. The optimized sending method can be:

[0271] a. Directly modify the TA-related content in the "SON and / or MDT-related reports reported by the UE" based on the TA enhancement information and carry it on the inter-node interface signaling. This method only affects the organization behavior of inter-node messages and does not enhance the signaling itself.

[0272] b. Together with the "SON and / or MDT related reports reported by the UE", the TA enhancement information is carried in the interface signaling sent between nodes.

[0273] Example 4: Cell logging enhancement sent to operator TCE for SON or MDT purposes.

[0274] Similar to Example 3, after the UE sends a SON and / or MDT-related report to the base station, the base station can enhance the TA information based on the TA information reported by the UE, the time information reported by the UE, the UE's geographic location information reported by the UE, the ephemeris information stored by the base station, and other content, and send the enhanced TA information to the TCE. The TA enhancement information can be carried within or outside the "SON and / or MDT-related report reported by the UE" sent to the TCE.

[0275] a. Directly modify the TA-related content in the "SON and / or MDT-related report reported by the UE" based on the TA enhancement information, and send the modified SON and / or MDT-related report to the TCE.

[0276] b. Send the TA enhancement information together with the "SON and / or MDT related reports reported by the UE" to the TCE.

[0277] The methods and devices provided in the various embodiments of the present disclosure are based on the same application concept. Since the methods and devices solve problems based on similar principles, the implementation of the devices and methods can refer to each other, and the repeated parts will not be repeated.

[0278] FIG5 is a schematic structural diagram of a terminal provided by an embodiment of the present disclosure. As shown in FIG5 , the terminal includes a memory 520 , a transceiver 510 , and a processor 500 ; wherein the processor 500 and the memory 520 may also be physically arranged separately.

[0279] The memory 520 is used to store computer programs; the transceiver 510 is used to send and receive data under the control of the processor 500.

[0280] Specifically, the transceiver 510 is configured to receive and send data under the control of the processor 500 .

[0281] In FIG5 , the bus architecture may include any number of interconnected buses and bridges, specifically various circuits of one or more processors represented by processor 500 and memory represented by memory 520, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described in this disclosure. The bus interface provides an interface. The transceiver 510 may be a plurality of components, i.e., a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, such as a wireless channel, a wired channel, an optical cable, and other transmission media. For different user devices, the user interface 530 may also be an interface capable of connecting external or internal devices as required, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0282] The processor 500 is responsible for managing the bus architecture and general processing, and the memory 520 can store data used by the processor 500 when performing operations.

[0283] The processor 500 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0284] The processor 500 is configured to execute any of the methods provided in the embodiments of the present disclosure according to the obtained executable instructions by calling the computer program stored in the memory 520. For example, when a non-terrestrial network NTN cell broadcasts multiple tracking areas TA, a self-organizing network and / or minimization of drive tests (SON) and / or MDT-related report for the NTN cell is sent to a network device, where the SON and / or MDT-related report includes information about a first TA or information about multiple second TAs.

[0285] In some embodiments, a first TA is any of the following:

[0286] The TA where the terminal is located, derived by the terminal based on the terminal's geographical location;

[0287] A specific TA in the TA list broadcast by the NTN cell;

[0288] A specific TA among multiple TAs that the terminal can access;

[0289] The only TA that a terminal can access.

[0290] In some embodiments, the plurality of second TAs are any of the following:

[0291] All TAs in the TA list broadcast by the NTN cell;

[0292] Multiple TAs that a terminal can access.

[0293] In some embodiments, the TAs accessible to the terminal include:

[0294] The intersection of the TA list broadcast by the NTN cell and the TA list received by the NAS layer of the terminal; and / or,

[0295] All TAs in the TA list broadcast by the NTN cell except the TAs that the terminal is prohibited from accessing.

[0296] In some embodiments, the SON and / or MDT related reports further include information on the number of multiple TAs broadcast by the NTN cell.

[0297] In some embodiments, sending a SON and / or MDT related report for an NTN cell to a network device includes:

[0298] The SON and / or MDT related report for the NTN cell is sent to the network device via a first message, where the first message includes time information when the terminal records the report content of the SON and / or MDT related report.

[0299] In some embodiments, the time information includes:

[0300] Absolute time information; or,

[0301] Relative time information: The relative time information is information about the time when the terminal records the report content of the SON and / or MDT-related report relative to the reference time. The reference time is the time when the configuration information corresponding to the SON and / or MDT-related report is received, or the time indicated by the absolute time information carried in the configuration information corresponding to the SON and / or MDT-related report, or the time when the SON and / or MDT-related report is sent.

[0302] FIG6 is a schematic structural diagram of a network device provided in an embodiment of the present disclosure. As shown in FIG6 , the network device includes a memory 620 , a transceiver 610 , and a processor 600 ; wherein the processor 600 and the memory 620 may also be physically arranged separately.

[0303] The memory 620 is used to store computer programs; the transceiver 610 is used to send and receive data under the control of the processor 600.

[0304] Specifically, the transceiver 610 is configured to receive and send data under the control of the processor 600 .

[0305] In FIG6 , the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 600 and memory represented by memory 620. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, all of which are well known in the art and, therefore, are not further described in this disclosure. The bus interface provides an interface. The transceiver 610 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium, such as a wireless channel, a wired channel, an optical cable, or the like.

[0306] The processor 600 is responsible for managing the bus architecture and general processing, and the memory 620 can store data used by the processor 600 when performing operations.

[0307] The processor 600 may be a CPU, an ASIC, an FPGA, or a CPLD, and the processor may also adopt a multi-core architecture.

[0308] The processor 600 is configured to execute any of the methods provided in the embodiments of the present disclosure according to the obtained executable instructions by calling the computer program stored in the memory 620. For example, when a non-terrestrial network NTN cell broadcasts multiple tracking areas TA, the processor 600 receives a self-organizing network and / or minimization of drive tests (SON) and / or MDT-related report for the NTN cell sent by the terminal, where the SON and / or MDT-related report includes information about one first TA or information about multiple second TAs.

[0309] In some embodiments, a first TA is any of the following:

[0310] The TA where the terminal is located, derived by the terminal based on the terminal's geographical location;

[0311] A specific TA in the TA list broadcast by the NTN cell;

[0312] A specific TA among multiple TAs that the terminal can access;

[0313] The only TA that a terminal can access.

[0314] In some embodiments, the plurality of second TAs are any of the following:

[0315] All TAs in the TA list broadcast by the NTN cell;

[0316] Multiple TAs that a terminal can access.

[0317] In some embodiments, the TAs accessible to the terminal include:

[0318] The intersection of the TA list broadcast by the NTN cell and the TA list received by the NAS layer of the terminal; and / or,

[0319] All TAs in the TA list broadcast by the NTN cell except the TAs that the terminal is prohibited from accessing.

[0320] In some embodiments, the SON and / or MDT related reports further include information on the number of multiple TAs broadcast by the NTN cell.

[0321] In some embodiments, receiving a SON and / or MDT-related report for an NTN cell sent by a terminal includes:

[0322] A SON and / or MDT related report for an NTN cell is received from a terminal through a first message, where the first message includes time information when the terminal records the report content of the SON and / or MDT related report.

[0323] In some embodiments, the time information includes:

[0324] Absolute time information; or,

[0325] Relative time information: The relative time information is information about the time when the terminal records the report content of the SON and / or MDT-related report relative to the reference time. The reference time is the time when the configuration information corresponding to the SON and / or MDT-related report is received, or the time indicated by the absolute time information carried in the configuration information corresponding to the SON and / or MDT-related report, or the time when the SON and / or MDT-related report is sent.

[0326] In some embodiments, the method further comprises:

[0327] Determine TA enhancement information based on one or more of the SON and / or MDT related reports, time information of the terminal recording the report content of the SON and / or MDT related reports, geographical location information of the terminal, and ephemeris information;

[0328] Send any of the following to other network devices or data collection nodes:

[0329] SON and / or MDT related reports for NTN cells modified based on TA enhancement information; or

[0330] SON and / or MDT related reports, and TA enhancement information.

[0331] It should be noted here that the above-mentioned terminals and network devices provided in the embodiments of the present disclosure can implement all the method steps implemented in the above-mentioned method embodiments and can achieve the same technical effects. The parts and beneficial effects of this embodiment that are the same as those in the method embodiments will not be described in detail here.

[0332] FIG7 is a schematic diagram of a structure of an information reporting device provided in an embodiment of the present disclosure. As shown in FIG7 , the device includes:

[0333] The first sending unit 700 is configured to send a self-organizing network and / or minimization of drive tests (SON) and / or MDT related report for the NTN cell to a network device when the non-terrestrial network (NTN) cell broadcasts multiple tracking areas (TAs). The SON and / or MDT related report includes information about a first TA or information about multiple second TAs.

[0334] In some embodiments, a first TA is any of the following:

[0335] The TA where the terminal is located, derived by the terminal based on the terminal's geographical location;

[0336] A specific TA in the TA list broadcast by the NTN cell;

[0337] A specific TA among multiple TAs that the terminal can access;

[0338] The only TA that a terminal can access.

[0339] In some embodiments, the plurality of second TAs are any of the following:

[0340] All TAs in the TA list broadcast by the NTN cell;

[0341] Multiple TAs that a terminal can access.

[0342] In some embodiments, the TAs accessible to the terminal include:

[0343] The intersection of the TA list broadcast by the NTN cell and the TA list received by the NAS layer of the terminal; and / or,

[0344] All TAs in the TA list broadcast by the NTN cell except the TAs that the terminal is prohibited from accessing.

[0345] In some embodiments, the SON and / or MDT related reports further include information on the number of multiple TAs broadcast by the NTN cell.

[0346] In some embodiments, sending a SON and / or MDT related report for an NTN cell to a network device includes:

[0347] The SON and / or MDT related report for the NTN cell is sent to the network device via a first message, where the first message includes time information when the terminal records the report content of the SON and / or MDT related report.

[0348] In some embodiments, the time information includes:

[0349] Absolute time information; or,

[0350] Relative time information: The relative time information is information about the time when the terminal records the report content of the SON and / or MDT-related report relative to the reference time. The reference time is the time when the configuration information corresponding to the SON and / or MDT-related report is received, or the time indicated by the absolute time information carried in the configuration information corresponding to the SON and / or MDT-related report, or the time when the SON and / or MDT-related report is sent.

[0351] FIG8 is a second structural diagram of an information reporting device provided in an embodiment of the present disclosure. As shown in FIG8 , the device includes:

[0352] The receiving unit 800 is configured to receive a self-organizing network and / or minimization of drive tests (SON) and / or MDT related report for the NTN cell sent by the terminal when the non-terrestrial network (NTN) cell broadcasts multiple tracking areas (TAs), where the SON and / or MDT related report includes information about a first TA or information about multiple second TAs.

[0353] In some embodiments, a first TA is any of the following:

[0354] The TA where the terminal is located, derived by the terminal based on the terminal's geographical location;

[0355] A specific TA in the TA list broadcast by the NTN cell;

[0356] A specific TA among multiple TAs that the terminal can access;

[0357] The only TA that a terminal can access.

[0358] In some embodiments, the plurality of second TAs are any of the following:

[0359] All TAs in the TA list broadcast by the NTN cell;

[0360] Multiple TAs that a terminal can access.

[0361] In some embodiments, the TAs accessible to the terminal include:

[0362] The intersection of the TA list broadcast by the NTN cell and the TA list received by the NAS layer of the terminal; and / or,

[0363] All TAs in the TA list broadcast by the NTN cell except the TAs that the terminal is prohibited from accessing.

[0364] In some embodiments, the SON and / or MDT related reports further include information on the number of multiple TAs broadcast by the NTN cell.

[0365] In some embodiments, receiving a SON and / or MDT-related report for an NTN cell sent by a terminal includes:

[0366] A SON and / or MDT related report for an NTN cell is received from a terminal through a first message, where the first message includes time information when the terminal records the report content of the SON and / or MDT related report.

[0367] In some embodiments, the time information includes:

[0368] Absolute time information; or,

[0369] Relative time information: The relative time information is information about the time when the terminal records the report content of the SON and / or MDT-related report relative to the reference time. The reference time is the time when the configuration information corresponding to the SON and / or MDT-related report is received, or the time indicated by the absolute time information carried in the configuration information corresponding to the SON and / or MDT-related report, or the time when the SON and / or MDT-related report is sent.

[0370] In some embodiments, the apparatus further comprises:

[0371] a determining unit, configured to determine TA enhancement information based on one or more of the SON and / or MDT related reports, time information of the terminal recording the report content of the SON and / or MDT related reports, geographical location information of the terminal, and ephemeris information;

[0372] The second sending unit is configured to send any of the following items to other network devices or data collection nodes:

[0373] SON and / or MDT related reports for NTN cells modified based on TA enhancement information; or

[0374] SON and / or MDT related reports, and TA enhancement information.

[0375] It should be noted that the division of units in the embodiments of the present disclosure is schematic and is merely a logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of the present disclosure may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0376] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present disclosure is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present disclosure. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0377] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned method embodiment and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0378] On the other hand, an embodiment of the present disclosure further provides a non-transitory readable storage medium, wherein the non-transitory readable storage medium stores a computer program, and the computer program is used to enable a processor to execute the information reporting method provided by the above embodiments.

[0379] It should be noted here that the non-transitory readable storage medium provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned method embodiment and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0380] The non-transitory readable storage medium can be any available medium or data storage device that can be accessed by a computer, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (such as CDs, DVDs, BDs, HVDs, etc.), and semiconductor storage (such as ROMs, EPROMs, EEPROMs, non-volatile memories (NAND FLASH), solid-state drives (SSDs)), etc.

[0381] The technical solution provided by the embodiments of the present disclosure can be applicable to a variety of systems, especially 5G systems. For example, applicable systems may be global system of mobile communication (GSM) systems, code division multiple access (CDMA) systems, wideband code division multiple access (WCDMA) general packet radio service (GPRS) systems, long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, long term evolution advanced (LTE-A) systems, universal mobile telecommunication systems (UMTS), worldwide interoperability for microwave access (WiMAX) systems, 5G new air interface (NR) systems, etc. These various systems include terminal devices and network devices. The system may also include a core network part, such as an evolved packet system (EPS), a 5G system (5GS), etc.

[0382] The terminal involved in the embodiments of the present disclosure may be a device that provides voice and / or data connectivity to a user, a handheld device with wireless connection function, or other processing devices connected to a wireless modem. In different systems, the name of the terminal may also be different. For example, in a 5G system, the terminal may be called User Equipment (UE). A wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device may be a mobile terminal device, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal device. For example, it may be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges voice and / or data with a radio access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), and other devices. The wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, or a user device, but is not limited in the embodiments of the present disclosure.

[0383] The network device involved in the embodiments of the present disclosure may be a base station, which may include multiple cells providing services to terminals. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in an access network that communicates with a wireless terminal device through one or more sectors on an air interface, or may be called another name. The network device may be used to interchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network. The network device may also coordinate the attribute management of the air interface. For example, the network device involved in the embodiments of the present disclosure may be a base transceiver station (BTS) in the Global System for Mobile communications (GSM) or code division multiple access (CDMA), a network device (NodeB) in wide-band code division multiple access (WCDMA), an evolutionary Node B (eNB or e-NodeB) in the long term evolution (LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), a home evolved Node B (HeNB), a relay node, a femto, a pico, etc., and is not limited in the embodiments of the present disclosure. In some network structures, the network device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be geographically separated.

[0384] Network devices and terminals can each use one or more antennas for Multiple Input Multiple Output (MIMO) transmission. MIMO transmission can be single-user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). Depending on the form and number of antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO. It can also be diversity transmission, precoded transmission, or beamforming transmission.

[0385] Those skilled in the art will appreciate that the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Therefore, the present disclosure may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present disclosure may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage and optical storage, etc.) containing computer-usable program code.

[0386] The present disclosure is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present disclosure. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0387] These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0388] These processor-executable instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0389] Obviously, those skilled in the art may make various changes and modifications to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is intended to include these modifications and variations.

Claims

1. An information reporting method, applied to a terminal, includes: When a non-terrestrial network (NTN) cell broadcasts multiple tracking areas (TAs), sending a self-organizing network and / or minimized drive test (SON) and / or MDT related report for the NTN cell to a network device, where the SON and / or MDT related report contains information of a first TA or information of multiple second TAs.

2. The information reporting method according to claim 1, wherein The first TA is any one of the following: The TA where the terminal is located, derived by the terminal based on the geographical location of the terminal; A specific TA in the TA list broadcast by the NTN cell; A specific TA among multiple TAs that the terminal can access; The only TA that the terminal can access.

3. The information reporting method according to claim 1, wherein, The multiple second TAs are any one of the following: All TAs in the TA list broadcast by the NTN cell; Multiple TAs that the terminal can access.

4. The information reporting method according to claim 2 or 3, wherein The TAs that the terminal can access include: The intersection of the TA list broadcast by the NTN cell and the TA list received by the NAS layer of the terminal; and / or, Other TAs in the TA list broadcast by the NTN cell except for the TAs that prohibit the terminal from accessing.

5. The information reporting method according to any one of claims 1 to 3, wherein, The SON and / or MDT related report further contains the quantity information of multiple TAs broadcast by the NTN cell.

6. The information reporting method according to any one of claims 1 to 3, wherein, The sending the SON and / or MDT related report for the NTN cell to the network device includes: Sending the SON and / or MDT related report for the NTN cell to the network device through a first message, where the first message contains the time information when the terminal records the report content of the SON and / or MDT related report.

7. The information reporting method according to claim 6, wherein, The time information includes: Absolute time information; or, Relative time information, where the relative time information is the information of the moment when the terminal records the report content of the SON and / or MDT related report relative to a reference moment, and the reference moment is the receiving moment of the configuration information corresponding to the SON and / or MDT related report, or the moment indicated by the absolute time information carried in the configuration information corresponding to the SON and / or MDT related report, or the sending moment of the SON and / or MDT related report.

8. An information reporting method, applied to a network device, includes: When a non-terrestrial network (NTN) cell broadcasts multiple tracking areas (TAs), receiving a self-organizing network and / or minimized drive test (SON) and / or MDT related report for the NTN cell sent by a terminal, where the SON and / or MDT related report contains information of a first TA or information of multiple second TAs.

9. The information reporting method according to claim 8, wherein The first TA is any one of the following: The TA where the terminal is located, derived by the terminal based on the geographical location of the terminal; A specific TA in the TA list broadcast by the NTN cell; A specific TA among multiple TAs that the terminal can access; The only TA that the terminal can access.

10. The information reporting method according to claim 8, wherein, The multiple second TAs are any one of the following: All TAs in the TA list broadcast by the NTN cell; Multiple TAs that the terminal can access.

11. The information reporting method according to claim 9 or 10, wherein, The TAs that the terminal can access include: The intersection of the TA list broadcast by the NTN cell and the TA list received by the NAS layer of the terminal; and / or, Other TAs in the TA list broadcast by the NTN cell except for the TAs that prohibit the terminal from accessing.

12. The information reporting method according to any one of claims 8 to 10, wherein, The SON and / or MDT related report further includes the quantity information of multiple TAs broadcast by the NTN cell.

13. The information reporting method according to any one of claims 8 to 10, wherein, The SON and / or MDT related report sent by the receiving terminal for the NTN cell includes: The SON and / or MDT related report sent by the receiving terminal for the NTN cell through a first message, where the first message includes the time information of the time when the terminal records the report content of the SON and / or MDT related report.

14. The information reporting method according to claim 13, wherein, The time information includes: Absolute time information; or, Relative time information, where the relative time information is the information of the moment when the terminal records the report content of the SON and / or MDT related report relative to a reference moment, and the reference moment is the receiving moment of the configuration information corresponding to the SON and / or MDT related report, or the moment indicated by the absolute time information carried in the configuration information corresponding to the SON and / or MDT related report, or the sending moment of the SON and / or MDT related report.

15. The information reporting method according to claim 8, wherein, The method further includes: Determining TA enhancement information based on one or more of the SON and / or MDT related report, the time information of the time when the terminal records the report content of the SON and / or MDT related report, the geographical location information of the terminal, and the ephemeris information; Sending any one of the following to other network devices or data collection nodes: The SON and / or MDT related report for the NTN cell modified based on the TA enhancement information; or, The SON and / or MDT related report, and the TA enhancement information.

16. A terminal, including a memory, a transceiver, and a processor; The memory is used for storing computer programs; The transceiver is used for transceiving data under the control of the processor; The processor is used for reading the computer programs in the memory and performing the following operations: When a non-terrestrial network NTN cell broadcasts multiple tracking areas TAs, sending a self-organizing network and / or minimized drive test SON and / or MDT related report for the NTN cell to a network device, where the SON and / or MDT related report includes the information of a first TA or the information of multiple second TAs.

17. The terminal according to claim 16, wherein, The first TA is any one of the following: The TA where the terminal is located deduced by the terminal based on the geographical location of the terminal; A specific TA in the TA list broadcast by the NTN cell; A specific TA among the multiple TAs that the terminal can access; The only TA that the terminal can access.

18. The terminal according to claim 16, wherein, The multiple second TAs are any one of the following: All TAs in the TA list broadcast by the NTN cell; The multiple TAs that the terminal can access.

19. The terminal according to claim 17 or 18, wherein, The TAs that the terminal can access include: The intersection of the TA list broadcast by the NTN cell and the TA list received by the NAS layer of the terminal; and / or, Other TAs in the TA list of the NTN cell broadcast except for the TAs that prohibit the access of the terminal.

20. The terminal according to any one of claims 16 to 18, wherein The SON and / or MDT related report also includes the quantity information of multiple TAs broadcast by the NTN cell.

21. The terminal according to any one of claims 16 to 18, wherein Sending the SON and / or MDT related report for the NTN cell to a network device includes: Sending the SON and / or MDT related report for the NTN cell to the network device through a first message, where the first message includes the time information of the time when the terminal records the report content of the SON and / or MDT related report.

22. The terminal according to claim 21, wherein, The time information includes: Absolute time information; or, Relative time information, where the relative time information is the information of the moment when the terminal records the report content of the SON and / or MDT related report relative to a reference moment, and the reference moment is the receiving moment of the configuration information corresponding to the SON and / or MDT related report, or the moment indicated by the absolute time information carried in the configuration information corresponding to the SON and / or MDT related report, or the sending moment of the SON and / or MDT related report.

23. A network device, including a memory, a transceiver, and a processor; The memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; The processor is used to read the computer programs in the memory and perform the following operations: When a non-terrestrial network (NTN) cell broadcasts multiple tracking areas (TAs), receiving a self-organizing network and / or minimized drive test (SON and / or MDT) related report for the NTN cell sent by a terminal, where the SON and / or MDT related report includes information of a first TA or information of multiple second TAs.

24. The network device according to claim 23, wherein, The first TA is any one of the following: The TA where the terminal is located deduced by the terminal based on the geographical location of the terminal; A specific TA in the TA list broadcast by the NTN cell; A specific TA among the multiple TAs that the terminal can access; The only TA that the terminal can access.

25. The network device according to claim 23, wherein, The multiple second TAs are any one of the following: All TAs in the TA list broadcast by the NTN cell; The multiple TAs that the terminal can access.

26. The network device according to claim 24 or 25, wherein, The TAs that the terminal can access include: The intersection of the TA list broadcast by the NTN cell and the TA list received by the NAS layer of the terminal; and / or, Other TAs in the TA list broadcast by the NTN cell except for the TAs that prohibit the access of the terminal.

27. The network device according to any one of claims 23 to 25, wherein, The SON and / or MDT related report also includes the quantity information of multiple TAs broadcast by the NTN cell.

28. The network device according to any one of claims 23 to 25, wherein Receiving the SON and / or MDT related report for the NTN cell sent by the terminal includes: Receiving the SON and / or MDT related report for the NTN cell sent by the terminal through a first message, where the first message includes the time information of the time when the terminal records the report content of the SON and / or MDT related report.

29. The network device according to claim 28, wherein, The time information includes: Absolute time information; or, Relative time information, where the relative time information is the information of the moment when the terminal records the report content of the SON and / or MDT-related report relative to a reference moment, and the reference moment is the reception moment of the configuration information corresponding to the SON and / or MDT-related report, or the moment indicated by the absolute time information carried in the configuration information corresponding to the SON and / or MDT-related report, or the transmission moment of the SON and / or MDT-related report.

30. The network device according to claim 23, wherein, The operation further includes: Determining TA enhancement information based on one or more of the SON and / or MDT-related report, the time information when the terminal records the report content of the SON and / or MDT-related report, the geographical location information of the terminal, and the ephemeris information; Sending any one of the following to other network devices or data collection nodes: The SON and / or MDT-related report for the NTN cell modified based on the TA enhancement information; or, The SON and / or MDT-related report and the TA enhancement information.

31. An information reporting device, comprising: A first sending unit, configured to send a self-organizing network and / or minimized drive test (SON and / or MDT)-related report for the NTN cell to a network device when the non-terrestrial network (NTN) cell broadcasts multiple tracking areas (TAs), where the SON and / or MDT-related report includes information of a first TA or information of multiple second TAs.

32. An information reporting device, comprising: A receiving unit, configured to receive a self-organizing network and / or minimized drive test (SON and / or MDT)-related report for the NTN cell sent by a terminal when the non-terrestrial network (NTN) cell broadcasts multiple tracking areas (TAs), where the SON and / or MDT-related report includes information of a first TA or information of multiple second TAs.

33. A non-transitory readable storage medium storing a computer program, where the computer program is used to cause a processor to execute the method according to any one of claims 1 to 7.

34. A non-transitory readable storage medium storing a computer program, where the computer program is used to cause a processor to execute the method according to any one of claims 8 to 15.

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