Information reporting method, terminal, network device, storage medium, and computer program product

Abstract

Disclosed in embodiments of the present application are an information reporting method, a terminal, a network device, a storage medium, and a computer program product. The method is applied to a terminal, and comprises: reporting a first report and / or a second report to a network device, wherein the first report is used for indicating related information of conditional handover (CHO) success, and the second report is used for indicating related information of CHO failure.

Description

Information reporting method, terminal, network device, storage medium and computer program product

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application is based on the Chinese patent application with application number 202311685127.7, application date December 8, 2023, and application name “Information reporting method, terminal, network device and storage medium”, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby incorporated into this application by introduction. Technical Field

[0003] The embodiments of the present application relate to the field of mobile communication technologies, and in particular to an information reporting method, a terminal, a network device, a storage medium, and a computer program product. Background Art

[0004] Non-Terrestrial Networks (NTN), also known as satellite communication systems, refer to communications conducted by terrestrial radio communication equipment using satellites as relays. Satellite communication systems consist of satellite and terrestrial components, as shown in Figure 1. Satellite communication boasts a wide range, allowing communication between any two points within the range of the satellite's radio waves, and is less susceptible to land-based disasters.

[0005] Currently, NTN uses Conditional Handover (CHO) to improve the robustness of cell handovers. CHO involves the network configuring CHO trigger conditions and the corresponding target cell for the terminal. When the CHO trigger conditions are met, the terminal triggers CHO and performs a cell handover. However, improper CHO triggering can lead to premature or late handovers, resulting in handover failures or immediate radio link failures (RLFs), impacting the robustness and reliability of handovers. Summary of the Invention

[0006] Embodiments of the present application provide an information reporting method, terminal, network device, storage medium, and computer program product. The terminal can report a first report indicating relevant information of CHO success to the network device, and can also report a second report indicating relevant information of CHO failure to the network device. In this way, the network device can adjust and / or optimize the CHO configuration in the NTN system based on the received report or the specific execution status of CHO, effectively avoiding possible handover failure or RLF.

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

[0008] The present invention provides an information reporting method, which is applied to a terminal. The method includes:

[0009] reporting the first report and / or the second report to the network device;

[0010] The first report is used to indicate relevant information of a success of the conditional handover CHO, and the second report is used to indicate relevant information of a failure of the conditional handover CHO.

[0011] In the above method, the time-based CHO triggering condition triggers CHO, and the CHO is successful. The method further includes:

[0012] For the time-based CHO trigger condition, if the time interval between the configured start time of allowing CHO execution and the time of CHO execution or the time of applying the CHO configuration is greater than or equal to the first time threshold, or is less than or equal to the second time threshold, the first report is generated.

[0013] In the above method, the location-based CHO triggering condition triggers CHO, and the CHO is successful. The method further includes:

[0014] For the location-based CHO triggering condition, if the distance between the terminal and the serving cell reference point is greater than or equal to a first distance threshold when CHO is executed or when CHO configuration is applied, the first report is generated.

[0015] In the above method, the first report includes at least one of the following:

[0016] The execution time of the CHO, or the time interval between the execution time of the CHO and the time when the last CHO trigger condition is met;

[0017] For a location-based CHO trigger condition, the distance between the terminal and a serving cell reference point, and / or the distance between the terminal and a target cell reference point when the CHO trigger condition is met;

[0018] For a location-based CHO trigger condition, when the duration for which the CHO trigger condition is met reaches the configured CHO trigger time, the distance between the terminal and the serving cell reference point, and / or the distance between the terminal and the target cell reference point;

[0019] The moment when the first CHO trigger condition is met;

[0020] the moment when the second CHO trigger condition is satisfied, or the time interval between when the first CHO trigger condition is satisfied and when the second CHO trigger condition is satisfied;

[0021] a reason for triggering the generation of the first report;

[0022] The serving cell measurement result;

[0023] Target cell measurement results;

[0024] Neighboring cell measurement results;

[0025] location information of the terminal;

[0026] The cell radio network temporary identifier C-RNTI of the terminal.

[0027] In the above method, the second report includes at least one of the following:

[0028] The order and / or timing of when CHO trigger conditions are met;

[0029] For a location-based CHO trigger condition, the distance between the terminal and a serving cell reference point, and / or the distance between the terminal and a target cell reference point;

[0030] After CHO fails, the cell identifier corresponding to the cell that the terminal attempts to connect to;

[0031] The type of CHO trigger condition.

[0032] The present invention provides an information reporting method, which is applied to a network device. The method includes:

[0033] receiving a first report and / or a second report reported by a terminal;

[0034] The first report is used to indicate relevant information of a success of a conditional handover (CHO), and the second report is used to indicate relevant information of a failure of a CHO.

[0035] In the above method, the first report includes at least one of the following:

[0036] The execution time of the CHO, or the time interval between the execution time of the CHO and the time when the last CHO trigger condition is met;

[0037] For a location-based CHO trigger condition, the distance between the terminal and a serving cell reference point, and / or the distance between the terminal and a target cell reference point when the CHO trigger condition is met;

[0038] For a location-based CHO trigger condition, when the duration for which the CHO trigger condition is met reaches the configured CHO trigger time, the distance between the terminal and the serving cell reference point, and / or the distance between the terminal and the target cell reference point;

[0039] The moment when the first CHO trigger condition is met;

[0040] the moment when the second CHO trigger condition is satisfied, or the time interval between when the first CHO trigger condition is satisfied and when the second CHO trigger condition is satisfied;

[0041] a reason for triggering the generation of the first report;

[0042] The serving cell measurement result;

[0043] Target cell measurement results;

[0044] Neighboring cell measurement results;

[0045] location information of the terminal;

[0046] The cell radio network temporary identifier C-RNTI of the terminal.

[0047] In the above method, the second report includes at least one of the following:

[0048] The order and / or timing of when CHO trigger conditions are met;

[0049] For a location-based CHO trigger condition, the distance between the terminal and a serving cell reference point, and / or the distance between the terminal and a target cell reference point;

[0050] After the CHO fails, the cell identifier corresponding to the cell that the terminal attempts to access;

[0051] The type of CHO trigger condition.

[0052] The above method also includes:

[0053] An analysis is performed based on the first report and / or the second report to adjust and / or optimize the CHO configuration.

[0054] In the above method, the analyzing based on the first report and adjusting and / or optimizing the CHO configuration includes at least one of the following:

[0055] If the reason for triggering generation of the first report in the first report indicates that the terminal performs CHO too late or too early, adjusting and / or optimizing the CHO triggering condition;

[0056] Optimize the selection of the target cell based on the serving cell measurement result, the target cell measurement result, the neighboring cell measurement result and the location information of the terminal in the first report.

[0057] In the above method, the second report includes a cell identifier corresponding to a cell that the terminal attempted to access after the CHO failure, and the analyzing and / or optimizing the CHO configuration based on the second report includes at least one of the following:

[0058] If the cell identifier corresponds to the source cell or the target cell, adjusting and / or optimizing the CHO triggering condition;

[0059] If the cell identifier corresponds to a cell different from the target cell and the source cell, the selection of the target cell is optimized.

[0060] An embodiment of the present application provides a terminal, comprising: a first processor, a first memory, and a first communication bus;

[0061] The first communication bus is configured to implement a communication connection between the first processor and the first memory;

[0062] The first processor is configured to execute one or more computer programs stored in the first memory to implement an information reporting method applied to a terminal.

[0063] An embodiment of the present application provides a network device, comprising: a second processor, a second memory, and a second communication bus;

[0064] The second communication bus is configured to implement a communication connection between the second processor and the second memory;

[0065] The second processor is configured to execute one or more computer programs stored in the second memory to implement the information reporting method applied to the network device.

[0066] An embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the computer program implements the steps of an information reporting method applied to a terminal, or the steps of an information reporting method applied to a network device.

[0067] An embodiment of the present application provides a computer program product, including a computer program, which, when executed by a processor, implements the steps of an information reporting method applied to a terminal, or the steps of an information reporting method applied to a network device.

[0068] Embodiments of the present application provide an information reporting method, terminal, network device, storage medium, and computer program product. The method applied to the terminal includes: reporting a first report and / or a second report to the network device; wherein the first report is used to indicate relevant information related to the success of the conditional handover CHO, and the second report is used to indicate relevant information related to the failure of the conditional handover CHO. The technical solution provided by the embodiments of the present application allows the terminal to report a first report indicating relevant information related to the success of the CHO to the network device, and can also report a second report indicating relevant information related to the failure of the CHO to the network device. In this way, the network device can adjust and / or optimize the CHO configuration in the NTN system based on the received report or the specific execution status of the CHO, effectively avoiding possible handover failures or RLF situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0069] FIG1 is a schematic diagram of an exemplary NTN transmission architecture provided in an embodiment of the present application

[0070] FIG2 is a flow chart of a method for reporting information according to an embodiment of the present application;

[0071] FIG3 is a second flow chart of an information reporting method provided in an embodiment of the present application;

[0072] FIG4 is a first structural diagram of a terminal provided in an embodiment of the present application;

[0073] FIG5 is a second structural diagram of a terminal provided in an embodiment of the present application;

[0074] FIG6 is a structural diagram 1 of a network device provided in an embodiment of the present application;

[0075] FIG7 is a second structural diagram of a network device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0076] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0077] The following will specifically describe the technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems through embodiments and in conjunction with the accompanying drawings. The following embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

[0078] In addition, the technical solutions described in the embodiments of the present application can be arbitrarily combined without conflict.

[0079] The embodiment of the present application provides an information reporting method, which is applied to a terminal. FIG2 is a flow chart of an information reporting method provided by the embodiment of the present application. As shown in FIG2, in the embodiment of the present application, the information reporting method applied to the terminal mainly includes the following steps:

[0080] S101. Submit a first report and / or a second report to a network device; wherein the first report is used to indicate relevant information of a CHO success, and the second report is used to indicate relevant information of a CHO failure.

[0081] In an embodiment of the present application, the terminal may report a first report and / or a second report to the network device; the first report is used to indicate relevant information of a successful conditional handover CHO, and the second report is used to indicate relevant information of a failed conditional handover CHO.

[0082] It should be noted that, in the embodiment of the present application, CHO success refers to a CHO handover success, and CHO failure refers to a CHO handover failure.

[0083] In an embodiment of the present application, the terminal can report a first report to the network device in a scenario where CHO is successful but on the verge of failure, and can also report a second report to the network device in a scenario where CHO fails. This covers all scenarios and helps to adjust and / or optimize the CHO configuration in the NTN system, thereby effectively avoiding possible switching failures or RLFs.

[0084] It should be noted that, in the embodiments of the present application, the first report and / or the second report may be reported to the network device after the terminal receives a request message sent by the network device requesting the terminal to report relevant information, or the terminal may actively report to the network device, or the terminal may send a notification message to the network device to notify the network device that the terminal has stored the relevant information and report to the network device again after receiving the request message sent by the network device. The embodiments of the present application do not limit this.

[0085] It should be noted that in the embodiments of the present application, the first report and / or the second report can be reported by the terminal directly to the network device, or forwarded to the network device through other nodes. The network device can be the source node in the CHO, or can be called a node that configures the CHO trigger conditions for the terminal.

[0086] For example, the first report may reuse an existing Successful Handover Report (SHR) generated when the terminal completes cell handover, or additional signaling may be added for reporting. If the existing SHR is reused, a new element may be added to the SHR or in an existing extended field to explicitly indicate that the SHR is the first report, or an implicit method may be used, such as adding a reason for triggering the generation of the first report, to indicate that the SHR is the first report.

[0087] Exemplarily, the second report may reuse an existing RLF report or add new signaling for reporting. If the existing RLF report is reused, a new element may be added or an existing extension field may be added to indicate explicitly or implicitly that the report is the second report.

[0088] It should be noted that in the embodiments of the present application, the terminal will further execute CHO only when all CHO trigger conditions are met. The trigger conditions may be measurement-based CHO trigger conditions, location-based CHO trigger conditions, and time-based CHO trigger conditions. In addition, the measurement-based CHO trigger conditions may be configured separately. However, when configuring the location-based CHO trigger conditions or the time-based CHO trigger conditions, the measurement-based CHO trigger conditions must be configured together.

[0089] In an embodiment of the present application, a time-based CHO trigger condition triggers CHO, and the CHO is successful. The terminal can add a time threshold as a condition for the terminal to generate a first report for the time-based CHO trigger condition. Specifically, the terminal can perform the following steps: for the time-based CHO trigger condition, if the time interval between the configured start time of allowing CHO execution and the time of executing CHO or the time of applying the CHO configuration is greater than or equal to the first time threshold, or is less than or equal to the second time threshold, a first report is generated.

[0090] It can be understood that in the embodiments of the present application, the terminal can simultaneously monitor whether the above-mentioned time interval is greater than or equal to the first time threshold, and whether it is less than or equal to the second time threshold, or it can only monitor one of them to decide whether to generate the first report. The specific selection and setting can be based on actual needs, and the embodiments of the present application are not limited.

[0091] It should be noted that, in the embodiment of the present application, if the above time interval is less than the first time threshold, the terminal does not generate the first report. Of course, if the above time interval is greater than the second time threshold, the terminal does not generate the first report either.

[0092] It is understood that in the embodiments of the present application, the first time threshold and the second time threshold are applicable to time-based CHO triggering conditions, that is, the terminal needs to trigger CHO within a certain time range [t1, t2]. Increasing the first time threshold is used to detect that the terminal executes CHO too late, and there is a possibility that the terminal cannot complete CHO before time t2, resulting in handover failure, which helps the network device adjust the configuration of time t2 to reduce the risk of CHO failure. Increasing the second time threshold is used to detect that the terminal executes CHO too early. If time t1 is configured too late, there is a risk that the terminal will experience RLF before triggering CHO, which helps the network adjust the configuration of time t1 to reduce the risk of RLF.

[0093] It should be noted that, in the embodiment of the present application, the first time threshold and the second time threshold may be pre-configured by the network device and sent to the terminal or defined in the protocol. Specifically, the first time threshold and the second time threshold may be expressed in any of the following forms:

[0094] The absolute value of the duration, in milliseconds. For example, the first time threshold is 100ms, which means 100ms after time t1, i.e., t1+100ms.

[0095] In proportional form, for example, the first time threshold is 80%, which represents Duration × 80% after time t1, that is, t1 + Duration × 80%. Among them, t1 and Duration are configured by the network and sent to the terminal in the time-based CHO trigger condition, and Duration indicates the duration allowed to trigger CHO.

[0096] It can be understood that in the embodiments of the present application, the first time threshold and the second time threshold can be absolute values ​​of the duration. In this case, the above time interval can be directly compared with the first time threshold and the second time threshold. Of course, the first time threshold and the second time threshold can also be in proportional form. In this case, it is necessary to convert the above time interval into information on the same dimension as the time threshold, and calculate the ratio of the above time interval to Duration. If the above time interval is greater than or equal to the first time threshold, that is, the ratio is greater than or equal to the first time threshold. Correspondingly, if the above time interval is less than or equal to the second time threshold, that is, the ratio is less than or equal to the second time threshold.

[0097] In an embodiment of the present application, a location-based CHO trigger condition triggers CHO, and the CHO is successful. The terminal can add a distance threshold as a condition for the terminal to generate a first report for the location-based CHO trigger condition. Specifically, the terminal can perform the following steps: for the location-based CHO trigger condition, if the distance between the terminal and the serving cell reference point is greater than or equal to the first distance threshold when CHO is executed or the CHO configuration is applied, a first report is generated.

[0098] It should be noted that, in the embodiment of the present application, if the above distance is less than the first distance threshold, the terminal does not generate the first report.

[0099] It is understood that in the embodiments of the present application, the first distance threshold is applicable to the location-based CHO trigger condition. The newly added first distance threshold is used to detect that after the terminal reaches the distance threshold between the terminal and the serving cell reference point configured for the location-based CHO trigger condition and continues to reach the CHO trigger time (time to trigger), the terminal's actual CHO location is already at the cell edge, and there may be a risk of RLF occurring before the terminal performs CHO. This helps network devices adjust and / or optimize the distance threshold and CHO trigger time configured for the location-based CHO trigger condition.

[0100] It should be noted that, in the embodiment of the present application, the first distance threshold may be pre-configured by the network device and sent to the terminal or defined in the protocol. Specifically, the first distance threshold may be expressed in any of the following forms:

[0101] The absolute value of the distance, which can be in meters or kilometers. For example, the first distance threshold is 1000 meters, indicating that the distance to the serving cell reference point is 1000 meters.

[0102] In proportional form, for example, the first distance threshold is 120%, which means the distance reference threshold × 120%, that is, the distance from the reference position of the serving cell is the distance reference threshold × 120%; or the first distance threshold is 20%, which means the distance reference threshold × (1+20%).

[0103] It can be understood that in the embodiments of the present application, the first distance threshold can be an absolute value of the distance. In this case, the above distance can be directly compared with the first distance threshold. Of course, the first distance threshold can also be in a proportional form. In this case, it is necessary to convert the above distance into information on the same dimension as the first distance threshold, and calculate the ratio of the above distance to the distance reference threshold for comparison.

[0104] In an embodiment of the present application, the first report includes at least one of the following:

[0105] The execution time of the CHO, or the time interval between the execution time of the CHO and the time when the last CHO trigger condition is met;

[0106] For location-based CHO triggering conditions, the distance between the terminal and the serving cell reference point, and / or the distance between the terminal and the target cell reference point when the CHO triggering conditions are met;

[0107] For location-based CHO trigger conditions, the distance between the terminal and the serving cell reference point, and / or the distance between the terminal and the target cell reference point when the duration for which the CHO trigger conditions are met reaches the configured CHO trigger time;

[0108] The moment when the first CHO trigger condition is met;

[0109] the moment when the second CHO trigger condition is satisfied, or the time interval between when the first CHO trigger condition is satisfied and when the second CHO trigger condition is satisfied;

[0110] the reason that triggered the generation of the first report;

[0111] Serving cell measurement results;

[0112] Target cell measurement results;

[0113] Neighboring cell measurement results;

[0114] Terminal location information;

[0115] Cell Radio Network Temporary Identifier (C-RNTI) of the terminal.

[0116] It should be noted that in embodiments of the present application, the first report may include the CHO execution time, or the time interval between the CHO execution time and the time when the last CHO trigger condition is satisfied. The terminal will only further execute CHO when all CHO trigger conditions are satisfied. When the network device configures one CHO trigger condition for the terminal, this CHO trigger condition is the last CHO trigger condition. When the network device configures two CHO trigger conditions for the terminal, the last CHO trigger condition is the second CHO trigger condition satisfied. The CHO execution time, or the time interval between the CHO execution time and the time when the last CHO trigger condition is satisfied, can assist the network device in adjusting and / or optimizing the aforementioned times t1 and t2.

[0117] It should be noted that, in the embodiment of the present application, the moment when the first CHO trigger condition is met can be expressed in Coordinated Universal Time (UTC). This information can assist in adjusting and optimizing network equipment and / or the above-mentioned moments t1 and t2.

[0118] It should be noted that, in an embodiment of the present application, when two CHO trigger conditions are configured, the moment when the second CHO trigger condition is met, or the time interval between the first CHO trigger condition and the second CHO trigger condition, can assist the network device in adjusting and / or optimizing the above-mentioned moments t1 and t2.

[0119] It should be noted that in an embodiment of the present application, for the location-based CHO trigger condition, the distance between the terminal and the serving cell reference point when the CHO trigger condition is met, and / or the distance between the terminal and the target cell reference point, can assist the network device in adjusting and / or optimizing the distance threshold configured for the location-based CHO trigger condition.

[0120] It should be noted that in an embodiment of the present application, for the location-based CHO trigger condition, when the duration of satisfying the CHO trigger condition reaches the configured CHO trigger time, the distance between the terminal and the serving cell reference point, and / or the distance between the terminal and the target cell reference point, can assist the network in adjusting and / or optimizing the distance threshold and CHO trigger time configured for the location-based CHO trigger condition.

[0121] It should be noted that in an embodiment of the present application, the reason for triggering the generation of the first report, for example, uses 4 bits corresponding to the first time threshold, the second time threshold, the first distance threshold, and measurement-based trigger, wherein the reason corresponding to the bit set to 1 indicates the reason for triggering the generation of the first report.

[0122] It should be noted that in an embodiment of the present application, serving cell measurement results, such as Reference Signal Receiving Power (RSRP) / Reference Signal Receiving Quality (RSRQ) / Signal to Interference plus Noise Ratio (SINR); target cell measurement results, such as RSRP / RSRQ / SINR; neighboring cell measurement results, such as RSRP / RSRQ / SINR; terminal cell radio network temporary identifier (Cell Radio Network Temporary Identifier, C-RNTI), such as target C-RNTI or source C-RNTI.

[0123] In an embodiment of the present application, in the scenario of CHO failure, the terminal may report a second report to the network device. The CHO failure may be caused by premature switching, late switching or wrong cell switching of the terminal, wherein premature switching refers to the terminal having a CHO failure or an RLF immediately after the CHO success, and the cell that the terminal attempts to reconstruct is still the source cell, that is, the CHO triggering condition is met too early; late switching refers to the terminal after the RLF occurs, and the cell that the terminal attempts to reconstruct is the target cell, that is, the RLF occurs before the CHO triggering condition is met; wrong cell switching refers to the terminal finding that the cell suitable for the terminal to enter is a cell other than the source cell and the target cell after the terminal fails, that is, the suitable cell is not in the source cell and the selected target cell.

[0124] In an embodiment of the present application, the second report includes at least one of the following:

[0125] The order and / or timing of when CHO trigger conditions are met;

[0126] For location-based CHO triggering conditions, the distance between the terminal and the serving cell reference point, and / or the distance between the terminal and the target cell reference point;

[0127] After CHO fails, the cell identifier of the cell that the terminal attempts to connect to;

[0128] The type of CHO trigger condition.

[0129] It should be noted that, in the embodiments of the present application, the order and / or time of satisfying the CHO trigger conditions, specifically, if only one CHO trigger condition is configured, the time when the trigger condition is satisfied is recorded. If the field is empty, it indicates that the CHO trigger condition is not satisfied; if two CHO trigger conditions are configured, the time when the two CHO trigger conditions are respectively satisfied is recorded in chronological order. If the field is empty, it indicates that both CHO trigger conditions are not satisfied. If the field only records the time when one CHO trigger condition is satisfied, it indicates that the other CHO trigger condition is not satisfied. If two CHO trigger conditions are configured, the time when the first CHO trigger condition is satisfied and the time interval between the time when the second CHO trigger condition is satisfied and the time when the first CHO trigger condition is satisfied can also be recorded. If the field is empty, it indicates that both CHO trigger conditions are not satisfied. If the field only records the time when one CHO trigger condition is satisfied, it indicates that the other CHO trigger condition is not satisfied.

[0130] It should be noted that in the embodiments of the present application, for the location-based CHO triggering conditions, the distance between the terminal and the serving cell reference point, and / or the distance between the terminal and the target cell reference point, refers to the distance between the terminal and the serving cell reference point, and / or the distance between the terminal and the target cell reference point when the handover fails or RLF or triggers the execution of CHO.

[0131] It should be noted that, in the embodiments of the present application, the type of CHO trigger condition, for example, uses 3 bits to correspond to measurement-based CHO trigger, location-based CHO trigger, and time-based CHO trigger respectively; wherein, measurement-based CHO trigger means that the terminal is only configured with measurement-based CHO trigger conditions; location-based CHO trigger means that the terminal is configured with location-based and measurement-based CHO trigger conditions; time-based CHO trigger means that the terminal is configured with time-based and measurement-based CHO trigger conditions.

[0132] In the embodiments of the present application, first, the terminal can report relevant reports to the network device when CHO succeeds or fails, covering comprehensive scenarios and facilitating CHO configuration adjustment and / or optimization in the NTN system, thereby effectively avoiding possible handover failures or RLFs. Second, taking into full consideration the particularity of the NTN system, not only traditional measurement-based CHO triggering conditions exist, but also time-based or location-based CHO triggering conditions. The generation of the first report, as well as the information in the first and second reports, are defined separately for the time-based or location-based CHO triggering conditions, enabling the network device to optimize the CHO configuration in a targeted manner. Third, a first time threshold and / or a second time threshold are added as conditions for the terminal to generate the first report, which can effectively avoid triggering CHO too early or too late, thereby improving the robustness and success rate of CHO. Fourth, a first distance threshold is added as a trigger condition for the terminal to generate the first report, which can effectively avoid the terminal triggering CHO too late due to unreasonable distance from the reference point or CHO trigger time configuration, resulting in no RLF before CHO, thereby ensuring a stable user experience.

[0133] The embodiment of the present application provides an information reporting method, which is applied to a network device. FIG3 is a flow diagram of a second process of an information reporting method provided by the embodiment of the present application. As shown in FIG3, in the embodiment of the present application, the information reporting method applied to a network device mainly includes the following steps:

[0134] S201. Receive a first report and / or a second report reported by a terminal; wherein the first report is used to indicate relevant information of a CHO success, and the second report is used to indicate relevant information of a CHO failure.

[0135] It should be noted that, in the embodiment of the present application, the network device receives the first report and / or the second report reported by the terminal, which may be received directly from the terminal, or received from other nodes through forwarding by other nodes.

[0136] In an embodiment of the present application, the first report includes at least one of the following:

[0137] The execution time of the CHO, or the time interval between the execution time of the CHO and the time when the last CHO trigger condition is met;

[0138] For location-based CHO triggering conditions, the distance between the terminal and the serving cell reference point, and / or the distance between the terminal and the target cell reference point when the CHO triggering conditions are met;

[0139] For location-based CHO trigger conditions, the distance between the terminal and the serving cell reference point, and / or the distance between the terminal and the target cell reference point when the duration for which the CHO trigger conditions are met reaches the configured CHO trigger time;

[0140] The moment when the first CHO trigger condition is met;

[0141] the moment when the second CHO trigger condition is satisfied, or the time interval between when the first CHO trigger condition is satisfied and when the second CHO trigger condition is satisfied;

[0142] the reason that triggered the generation of the first report;

[0143] Serving cell measurement results;

[0144] Target cell measurement results;

[0145] Neighboring cell measurement results;

[0146] Terminal location information;

[0147] Cell Radio Network Temporary Identifier (C-RNTI) of the terminal.

[0148] In an embodiment of the present application, the second report includes at least one of the following:

[0149] The order and / or timing of when CHO trigger conditions are met;

[0150] For location-based CHO triggering conditions, the distance between the terminal and the serving cell reference point, and / or the distance between the terminal and the target cell reference point;

[0151] After CHO fails, the cell identifier of the cell that the terminal attempts to access;

[0152] The type of CHO trigger condition.

[0153] It should be noted that, in the embodiment of the present application, the information contained in the first report and the second report is consistent with the relevant content in the above-mentioned terminal side method, and will not be repeated here.

[0154] In an embodiment of the present application, the network device may perform analysis based on the first report and / or the second report to adjust and / or optimize the CHO configuration.

[0155] In an embodiment of the present application, the network device performs analysis based on the first report and performs CHO configuration adjustment and / or optimization, including at least one of the following:

[0156] If the reason for triggering the generation of the first report in the first report indicates that the terminal performs CHO too late or too early, adjusting and / or optimizing the CHO triggering condition;

[0157] The selection of the target cell is adjusted and / or optimized based on the serving cell measurement result, the target cell measurement result, the neighboring cell measurement result and the terminal location information in the first report.

[0158] It should be noted that, in an embodiment of the present application, if the generation of the first report is triggered based on the first time threshold, that is, the reason for triggering the generation of the first report indicates that the terminal executes CHO too late, the duration of the allowed CHO triggering time configured in the CHO triggering condition can be increased according to the time when CHO is executed in the first report or the time interval between the time when CHO is executed and the time when the last CHO triggering condition is met, or, according to the time when the first CHO triggering condition is met or the second CHO triggering condition is met or the time interval between the time when the second CHO triggering condition is met and the time when the first CHO triggering condition is met in the first report, the above-mentioned t1 moment can be postponed, that is, the time range for executing CHO is shifted back as a whole, wherein the triggering condition in this case refers to the time-based CHO triggering condition.

[0159] It should be noted that, in an embodiment of the present application, if the generation of the first report is triggered based on the first distance threshold, that is, the reason for triggering the generation of the first report indicates that the terminal executes CHO too late, which actually also indicates that the terminal is located close to the edge of the cell. The moving distance of the terminal within the CHO trigger time can be calculated based on the distance between the terminal and the service cell reference point when the terminal meets the CHO trigger condition and the measurement event in the first report, and the distance between the terminal and the service cell reference point when the duration for which the terminal meets the CHO trigger condition reaches the configured CHO trigger time. If the moving distance is too large, the CHO trigger time configured in the CHO trigger condition can be shortened, or the distance reference threshold configured in the CHO trigger condition can be shortened, and / or a new distance reference threshold can be added. The CHO trigger condition in this case refers to a location-based CHO trigger condition.

[0160] It should be noted that, in an embodiment of the present application, if the generation of the first report is triggered based on the second time threshold, that is, the reason for triggering the generation of the first report indicates that the terminal triggers CHO too early, the t1 moment configured in the CHO trigger condition can be advanced according to the execution time of the CHO in the first report or the time interval between the execution time of the CHO and the moment when the last CHO trigger condition is met. In particular, when the time interval is large, it means that the t1 moment is configured late and the t1 moment needs to be advanced. The trigger condition in this case refers to the time-based CHO trigger condition.

[0161] In an embodiment of the present application, the second report includes a cell identifier corresponding to a cell attempted to be accessed after the CHO fails, and analysis based on the second report is performed to adjust and / or optimize the CHO configuration, including at least one of the following:

[0162] If the cell identifier corresponds to the source cell or the target cell, adjust and / or optimize the CHO triggering conditions;

[0163] If the cell identifier corresponds to a cell that is different from the target cell and the source cell, the selection of the target cell is adjusted and / or optimized.

[0164] It should be noted that in the embodiments of the present application, if the cell that the terminal attempts to access after a CHO failure is the source cell, it indicates that the terminal has switched prematurely. The network device may consider increasing the threshold value configured for the CHO trigger condition based on the moment when the CHO trigger condition is met in the second report. For location-based CHO trigger conditions, the configured distance reference threshold may also be increased. The specific value needs to be determined through comprehensive judgment based on the distance between the terminal and the serving cell reference point and / or the distance between the terminal and the target cell reference point in the second report. For time-based CHO trigger conditions, the configured time t1 may also be postponed. The specific value is determined based on the moment when the CHO trigger condition is met.

[0165] It should be noted that in the embodiments of the present application, if the cell that the terminal attempts to access after a CHO failure is the target cell, it indicates that the terminal is switched too late. The network device may consider appropriately lowering the configured threshold value based on the time when the CHO trigger condition is met or the CHO trigger condition is not met in the second report; for location-based CHO trigger conditions, the configured distance reference threshold may also be reduced; for time-based CHO trigger conditions, the configured time t1 may also be advanced, with the specific value determined based on the time when the CHO trigger condition is met.

[0166] It should be noted that in an embodiment of the present application, after the CHO fails, the cell that the terminal attempts to access is a cell other than the source cell and the target cell, which means that the terminal performs switching of the wrong cell, and the network device can optimize the selection of the target cell. The second report can also include the serving cell measurement results, the target cell measurement results, the neighboring cell measurement results and the terminal's location information, like the first report mentioned above, for optimizing the selection of the target cell. Of course, the selection of the target cell can also be optimized based on other information or rules, which is not limited in the embodiment of the present application.

[0167] The present application also provides a terminal. FIG4 is a structural diagram of a terminal provided in the present application. As shown in FIG4, in the embodiment of the present application, the terminal includes:

[0168] A sending module 301 is configured to report the first report and / or the second report to a network device;

[0169] The first report is used to indicate relevant information of CHO success, and the second report is used to indicate relevant information of CHO failure.

[0170] In an embodiment of the present application, a time-based CHO triggering condition triggers CHO, and the CHO is successful. The terminal further includes a first processing module 302 (not shown in the figure);

[0171] The first processing module 302 is configured to generate the first report for a time-based CHO trigger condition if the time interval between the configured start time of allowing CHO execution and the CHO execution time or the time of applying the CHO configuration is greater than or equal to a first time threshold, or is less than or equal to a second time threshold.

[0172] In one embodiment of the present application, a location-based CHO trigger condition triggers CHO, and the CHO is successful. The first processing module 302 is configured to generate the first report for the location-based CHO trigger condition, if the distance between the terminal and the serving cell reference point is greater than or equal to the first distance threshold when CHO is executed or the CHO configuration is applied.

[0173] In one embodiment of the present application, the first report includes at least one of the following:

[0174] The execution time of the CHO, or the time interval between the execution time of the CHO and the time when the last CHO trigger condition is met;

[0175] For a location-based CHO trigger condition, the distance between the terminal and a serving cell reference point, and / or the distance between the terminal and a target cell reference point when the CHO trigger condition is met;

[0176] For a location-based CHO trigger condition, when the duration for which the CHO trigger condition is met reaches the configured CHO trigger time, the distance between the terminal and the serving cell reference point, and / or the distance between the terminal and the target cell reference point;

[0177] The moment when the first CHO trigger condition is met;

[0178] the moment when the second CHO trigger condition is satisfied, or the time interval between when the first CHO trigger condition is satisfied and when the second CHO trigger condition is satisfied;

[0179] a reason for triggering the generation of the first report;

[0180] The serving cell measurement result;

[0181] Target cell measurement results;

[0182] Neighboring cell measurement results;

[0183] location information of the terminal;

[0184] The cell radio network temporary identifier C-RNTI of the terminal.

[0185] In one embodiment of the present application, the second report includes at least one of the following:

[0186] The order and / or timing of when CHO trigger conditions are met;

[0187] For a location-based CHO trigger condition, the distance between the terminal and a serving cell reference point, and / or the distance between the terminal and a target cell reference point;

[0188] After CHO fails, the cell identifier corresponding to the cell that the terminal attempts to connect to;

[0189] The type of CHO trigger condition.

[0190] Figure 5 is a second structural diagram of a terminal provided in an embodiment of the present application. As shown in Figure 5, in an embodiment of the present application, the terminal includes: a first processor 401, a first memory 402, and a first communication bus 403;

[0191] The first communication bus 403 is configured to implement a communication connection between the first processor 401 and the first memory 402;

[0192] The first processor 401 is configured to execute one or more computer programs stored in the first memory 402 to implement an information reporting method applied to a terminal.

[0193] The present application also provides a network device. FIG6 is a structural diagram of a network device provided in the present application. As shown in FIG6, in the embodiment of the present application, the network device includes:

[0194] The receiving module 501 is configured to receive the first report and / or the second report reported by the terminal;

[0195] The first report is used to indicate relevant information of a success of a conditional handover (CHO), and the second report is used to indicate relevant information of a failure of a CHO.

[0196] In one embodiment of the present application, the first report includes at least one of the following:

[0197] The execution time of the CHO, or the time interval between the execution time of the CHO and the time when the last CHO trigger condition is met;

[0198] For a location-based CHO trigger condition, the distance between the terminal and a serving cell reference point, and / or the distance between the terminal and a target cell reference point when the CHO trigger condition is met;

[0199] For a location-based CHO trigger condition, when the duration for which the CHO trigger condition is met reaches the configured CHO trigger time, the distance between the terminal and the serving cell reference point, and / or the distance between the terminal and the target cell reference point;

[0200] The moment when the first CHO trigger condition is met;

[0201] the moment when the second CHO trigger condition is satisfied, or the time interval between when the first CHO trigger condition is satisfied and when the second CHO trigger condition is satisfied;

[0202] a reason for triggering the generation of the first report;

[0203] The serving cell measurement result;

[0204] Target cell measurement results;

[0205] Neighboring cell measurement results;

[0206] location information of the terminal;

[0207] The cell radio network temporary identifier C-RNTI of the terminal.

[0208] In one embodiment of the present application, the second report includes at least one of the following:

[0209] The order and / or timing of when CHO trigger conditions are met;

[0210] For a location-based CHO trigger condition, the distance between the terminal and a serving cell reference point, and / or the distance between the terminal and a target cell reference point;

[0211] After the CHO fails, the cell identifier corresponding to the cell that the terminal attempts to access;

[0212] The type of CHO trigger condition.

[0213] In an embodiment of the present application, the network device further includes: a second processing module 502 (not shown in the figure);

[0214] The second processing module 502 is configured to perform analysis based on the first report and / or the second report, and adjust and / or optimize the CHO configuration.

[0215] In an embodiment of the present application, the second processing module 502 is configured to perform at least one of the following:

[0216] If the reason for triggering generation of the first report in the first report indicates that the terminal performs CHO too late or too early, adjusting and / or optimizing the CHO triggering condition;

[0217] Adjust and / or optimize the selection of the target cell based on the serving cell measurement result, the target cell measurement result, the neighboring cell measurement result and the location information of the terminal in the first report.

[0218] In an embodiment of the present application, the second report includes a cell identifier corresponding to a cell that the terminal attempts to access after the CHO fails, and the second processing module 502 is configured to perform at least one of the following:

[0219] If the cell identifier corresponds to the source cell or the target cell, adjusting and / or optimizing the CHO triggering condition;

[0220] If the cell identifier corresponds to a cell different from the target cell and the source cell, the selection of the target cell is adjusted and / or optimized.

[0221] Figure 7 is a second structural diagram of a network device provided in an embodiment of the present application. As shown in Figure 7, in an embodiment of the present application, the network device includes: a second processor 601, a second memory 602, and a second communication bus 603;

[0222] The second communication bus 603 is configured to implement a communication connection between the second processor 601 and the second memory 602;

[0223] The second processor 601 is configured to execute one or more computer programs stored in the second memory 602 to implement an information reporting method applied to a network device.

[0224] An embodiment of the present application provides a computer program product, including a computer program, which, when executed by a processor, implements the steps of an information reporting method applied to a terminal, or the steps of an information reporting method applied to a network device.

[0225] An embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of an information reporting method applied to a terminal, or the steps of an information reporting method applied to a network device. The computer-readable storage medium may be a volatile memory (volatile memory), such as a random-access memory (RAM); or a non-volatile memory (non-volatile memory), such as a read-only memory (ROM), a flash memory, a hard disk drive (HDD), or a solid-state drive (SSD); or may be a respective device including one or any combination of the above memories, such as a mobile phone, a computer, a tablet device, a personal digital assistant, etc.

[0226] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of hardware embodiments, software embodiments, or embodiments combining software and hardware. Furthermore, the present application may adopt 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.

[0227] The present application is described with reference to the implementation flow diagram and / or block diagram of the method, device (system) and computer program product according to the embodiment of the present application. It should be understood that each flow and / or box in the flow diagram and / or block diagram and the combination of the flow and / or box in the flow diagram and / or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processing machine 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 realizing the function specified in one flow diagram or multiple flows and / or one block or multiple blocks of the block diagram.

[0228] These computer program instructions may also be stored in a computer-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 computer-readable memory produce a product including an instruction device that implements the functions specified in implementing one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0229] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating 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.

[0230] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this utility model should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. An information reporting method, applied to a terminal, comprising: Reporting the first report and / or the second report to the network device; The first report is used to indicate relevant information of the success of the conditional handover CHO, and the second report is used to indicate relevant information of the failure of CHO.

2. The method according to claim 1, wherein: The CHO triggering condition based on time triggers CHO, and the CHO is successful, and the method further includes: For the time-based CHO trigger condition, if the time interval between the configured start time of allowing CHO execution and the CHO execution time or the time of applying the CHO configuration is greater than or equal to the first time threshold, or is less than or equal to the second time threshold, the first report is generated.

3. The method according to claim 1, wherein: The CHO triggering condition based on the location triggers the CHO, and the CHO is successful, and the method further includes: For the location-based CHO trigger condition, if when CHO is executed or when CHO configuration is applied, the distance between the terminal and the serving cell reference point is greater than or equal to a first distance threshold, the first report is generated.

4. The method according to claim 1, wherein: The first report includes at least one of the following: The execution time of the CHO, or the time interval between the execution time of the CHO and the time when the last CHO triggering condition is met; For a location-based CHO trigger condition, the distance between the terminal and a serving cell reference point, and / or the distance between the terminal and a target cell reference point when the CHO trigger condition is met; For a location-based CHO trigger condition, when the duration for which the CHO trigger condition is met reaches a configured CHO trigger time, the distance between the terminal and the serving cell reference point, and / or the distance between the terminal and the target cell reference point; The moment when the first CHO trigger condition is met; the time when the second CHO trigger condition is satisfied, or the time interval between when the first CHO trigger condition is satisfied and when the second CHO trigger condition is satisfied; a reason for triggering the generation of the first report; The serving cell measurement result; Target cell measurement results; Neighboring cell measurement results; location information of the terminal; The cell radio network temporary identifier C-RNTI of the terminal.

5. The method according to claim 1, wherein: The second report includes at least one of the following: The order and / or timing of satisfying the CHO triggering conditions; For a location-based CHO trigger condition, a distance between the terminal and a serving cell reference point, and / or a distance between the terminal and a target cell reference point; After the CHO fails, the cell identifier corresponding to the cell that the terminal attempts to connect to; The type of CHO trigger condition.

6. An information reporting method, applied to a network device, comprising: Receiving a first report and / or a second report reported by a terminal; The first report is used to indicate relevant information of a conditional handover CHO success, and the second report is used to indicate relevant information of a CHO failure.

7. The method according to claim 6, wherein: The first report includes at least one of the following: The execution time of the CHO, or the time interval between the execution time of the CHO and the time when the last CHO triggering condition is met; For a location-based CHO trigger condition, the distance between the terminal and a serving cell reference point, and / or the distance between the terminal and a target cell reference point when the CHO trigger condition is met; For a location-based CHO trigger condition, when the duration for which the CHO trigger condition is met reaches a configured CHO event trigger time, the distance between the terminal and the serving cell reference point, and / or the distance between the terminal and the target cell reference point; The moment when the first CHO trigger condition is met; the time when the second CHO trigger condition is satisfied, or the time interval between when the first CHO trigger condition is satisfied and when the second CHO trigger condition is satisfied; a reason for triggering the generation of the first report; The serving cell measurement result; Target cell measurement results; Neighboring cell measurement results; location information of the terminal; The cell radio network temporary identifier C-RNTI of the terminal.

8. The method according to claim 6, wherein: The second report includes at least one of the following: The order and / or timing of satisfying the CHO triggering conditions; For a location-based CHO trigger condition, a distance between the terminal and a serving cell reference point, and / or a distance between the terminal and a target cell reference point; After the CHO fails, the cell identifier corresponding to the cell that the terminal attempts to access; The type of CHO trigger condition.

9. The method according to claim 6, wherein: The method further comprises: An analysis is performed based on the first report and / or the second report to adjust and / or optimize the CHO configuration.

10. The method according to claim 9, wherein: The analyzing based on the first report and adjusting and / or optimizing the CHO configuration includes at least one of the following: If the reason for triggering generation of the first report in the first report indicates that the terminal performs CHO too late or too early, adjusting and / or optimizing the CHO triggering condition; The selection of the target cell is adjusted and / or optimized based on the serving cell measurement result, the target cell measurement result, the neighboring cell measurement result and the location information of the terminal in the first report.

11. The method according to claim 9, wherein: The second report includes a cell identifier corresponding to a cell that the terminal attempts to access after the CHO fails, and the analyzing based on the second report to adjust and / or optimize the CHO configuration includes at least one of the following: If the cell identifier corresponds to the source cell or the target cell, adjusting and / or optimizing the CHO triggering condition; If the cell identifier corresponds to a cell different from the target cell and the source cell, the selection of the target cell is adjusted and / or optimized.

12. A terminal, comprising: a first processor, a first memory, and a first communication bus; The first communication bus is configured to implement a communication connection between the first processor and the first memory; The first processor is configured to execute one or more computer programs stored in the first memory to implement the information reporting method according to any one of claims 1 to 5.

13. A network device comprising: a second processor, a second memory, and a second communication bus; The second communication bus is configured to implement a communication connection between the second processor and the second memory; The second processor is configured to execute one or more computer programs stored in the second memory to implement the information reporting method described in any one of claims 6-11.

14. A computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the information reporting method according to any one of claims 1 to 11.

15. A computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the information reporting method according to any one of claims 1 to 11 is implemented.

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