Information reporting method, related device and storage medium

Abstract

The embodiment of the invention discloses an information reporting method, a related device and a storage medium, and the method applied to a first far-end terminal comprises the steps: reporting first information to network equipment; wherein the first information comprises related information about switching failure between the indirect connection and the direct connection of the relay.

Description

Technical Field

[0001] Embodiments of the present application relate to the field of mobile communication technologies, and in particular, to a method and related apparatus for information reporting, and a storage medium. Background Art

[0002] The New Radio (NR) system supports User Equipment (UE)-to-Network (U2N) relay, and can provide coverage extension or reduce transmission power for remote terminals.

[0003] Currently, in order to ensure the service continuity of terminal movement, Layer 2 (L2) U2N relay supports switching from an indirect connection to a direct connection, and from a direct connection to an indirect connection under the same NR node. However, due to various reasons, there may be situations such as handover failures, resulting in service interruptions. Summary of the Invention

[0004] Embodiments of the present application provide a method and related apparatus for information reporting, and a storage medium. For scenarios where handover between relay indirect connection and direct connection fails, a remote terminal and a relay terminal can report relevant information to a network device, so that the network device can adjust and / or optimize relay handover configuration based on this information, thereby improving the handover success rate and ensuring service continuity.

[0005] The technical solution of the embodiments of the present application is implemented as follows:

[0006] Embodiments of the present application provide an information reporting method, which is applied to a first remote terminal. The method includes:

[0007] Report first information to a network device;

[0008] Wherein, the first information includes information related to the failure of handover between relay indirect connection and direct connection.

[0009] In the above method, the first information includes at least one of the following:

[0010] A first handover type, used to indicate the failure of handover from an indirect connection to a direct connection, or the failure of handover from a direct connection to an indirect connection;

[0011] The reason for handover failure;

[0012] During the handover from an indirect connection to a direct connection, the measurement result of the sidelink (SL) signal of the relay terminal to which the first remote terminal has accessed, or during the handover from a direct connection to an indirect connection, the measurement result of the SL signal of the relay terminal to which the first remote terminal initiates access;

[0013] Measurement results of the SL signal of at least one relay terminal different from the relay terminal initiating access with the first remote terminal during the direct connection to indirect connection handover.

[0014] In the above method, the first information further includes at least one of the following:

[0015] During the indirect connection to direct connection handover, the identifier of the target New Radio (NR) cell of the first remote terminal, or during the direct connection to indirect connection handover, the identifier of the source NR cell of the first remote terminal;

[0016] During the indirect connection to direct connection handover, the identifier of the relay terminal already accessed by the first remote terminal, or during the direct connection to indirect connection handover, the identifier of the relay terminal initiating access by the first remote terminal;

[0017] The identifier of the first remote terminal;

[0018] During the indirect connection to direct connection handover, the measurement results of the target NR cell of the first remote terminal and / or other NR cells under the base station to which the target NR cell belongs, or during the direct connection to indirect connection handover, the measurement results of the source NR cell of the first remote terminal;

[0019] The identifier of the relay terminal for which the first remote terminal initiates radio resource control (RRC) connection reestablishment;

[0020] The identifier of the NR cell for which the first remote terminal initiates RRC connection reestablishment;

[0021] The time interval between the occurrence time of the radio link failure or relay link failure and the time of the most recent connection handover;

[0022] The location information of the first remote terminal;

[0023] During the indirect connection to direct connection handover, the distance between the first remote terminal and the already accessed relay terminal, or during the direct connection to indirect connection handover, the distance between the first remote terminal and the relay terminal initiating access.

[0024] An information reporting method provided by an embodiment of this application is applied to a first relay terminal. The method includes:

[0025] Report the second information to a network device;

[0026] Wherein, the second information includes information related to the failure of the relay direct connection to indirect connection handover.

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

[0028] The identifier of the NR cell connected to the first relay terminal;

[0029] The identifier of the first relay terminal;

[0030] The identifier of the remote terminal that initiates access to the first relay terminal;

[0031] The second handover type, which is used to indicate the failure of the direct connection to indirect connection handover;

[0032] The time interval between the moment when the first relay terminal establishes a relay connection with a certain remote terminal and the moment when a relay link failure occurs;

[0033] The measurement result of the downlink reference signal measured by the first relay terminal;

[0034] The relay terminal configuration parameters received by the first relay terminal most recently.

[0035] An information reporting method provided by an embodiment of the present application is applied to a network device. The method includes:

[0036] Receiving first information reported by a first remote terminal; wherein, the first information includes information related to the failure of the handover between the relay indirect connection and the direct connection;

[0037] And / or, receiving second information reported by a first relay terminal; wherein, the second information includes information related to the failure of the handover from the relay direct connection to the indirect connection.

[0038] In the above method, the first information includes at least one of the following:

[0039] The first handover type, which is used to indicate the failure of the indirect connection to direct connection handover, or the failure of the direct connection to indirect connection handover;

[0040] The cause of the handover failure;

[0041] In the indirect connection to direct connection handover, the SL signal measurement result of the relay terminal that the first remote terminal has accessed, or in the direct connection to indirect connection handover, the SL signal measurement result of the relay terminal that the first remote terminal initiates access to;

[0042] In the direct connection to indirect connection handover, the SL signal measurement results of at least one relay terminal different from the relay terminal that the first remote terminal initiates access to.

[0043] In the above method, the second information includes at least one of the following:

[0044] The identifier of the NR cell connected to the first relay terminal;

[0045] The identifier of the first relay terminal;

[0046] The identifier of the remote terminal that initiates access to the first relay terminal;

[0047] The second handover type, which is used to indicate the failure of the direct connection to indirect connection handover;

[0048] The time interval between the moment when the first relay terminal establishes a relay connection with a certain remote terminal and the moment when a relay link failure occurs;

[0049] The measurement result of the downlink reference signal measured by the first relay terminal;

[0050] The relay terminal configuration parameters that the first relay terminal received most recently.

[0051] In the above method, it further includes:

[0052] Based on the first information and / or the second information, perform configuration adjustment and / or optimization of the handover between the indirect connection and the direct connection.

[0053] In the above method, the performing configuration adjustment and / or optimization of the handover between the indirect connection and the direct connection based on the first information includes:

[0054] For the indirect connection to direct connection handover, if it is determined based on the first information that the handover is too late or too early, then update the first handover condition based on the first information to adjust and / or optimize the handover timing of the indirect connection to direct connection handover; the first handover condition is used to trigger the indirect connection to direct connection handover;

[0055] If it is determined based on the first information that the handover is incorrect, then reselect the target NR cell of the first remote terminal in the indirect connection to direct connection handover based on the first information;

[0056] And / or, for the direct connection to indirect connection handover, if it is determined based on the first information that the handover is too late or too early, then update the second handover condition based on the first information to adjust and / or optimize the handover timing of the direct connection to indirect connection handover; the second handover condition is used to trigger the indirect connection to direct connection handover;

[0057] If it is determined based on the first information that the handover is incorrect, then reselect the relay terminal to which the first remote terminal initiates access in the direct connection to indirect connection handover based on the first information.

[0058] In the above method, the performing configuration adjustment and / or optimization of the handover between the indirect connection and the direct connection based on the second information includes:

[0059] Based on the second information, determine whether the relay terminal configuration parameters of the first relay terminal are correct;

[0060] In the case where the determination result is negative, adjust and / or optimize the relay terminal configuration parameters of the first relay terminal.

[0061] An embodiment of the present application provides a first remote terminal, including: a first processor, a first memory, and a first communication bus;

[0062] The first communication bus is used to implement a communication connection between the first processor and the first memory;

[0063] 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 the first remote terminal.

[0064] An embodiment of the present application provides a first relay terminal, including: a second processor, a second memory, and a second communication bus;

[0065] The second communication bus is used to implement a communication connection between the second processor and the second memory;

[0066] The second processor is configured to execute one or more computer programs stored in the second memory to implement an information reporting method applied to the first relay terminal.

[0067] An embodiment of the present application provides a network device, including: a third processor, a third memory, and a third communication bus;

[0068] The third communication bus is used to implement a communication connection between the third processor and the third memory;

[0069] The third processor is configured to execute one or more computer programs stored in the third memory to implement an information reporting method applied to the network device.

[0070] An embodiment of the present application provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed, the above information reporting method is implemented.

[0071] Embodiments of the present application provide an information reporting method, related devices, and a storage medium. Among them, a first remote terminal reports first information to a network device; the first information includes information related to a failure in switching between indirect connection and direct connection of a relay. A first relay terminal reports second information to the network device; the second information includes information related to a failure in switching from direct connection to indirect connection of the relay. The technical solution provided by the embodiments of the present application is directed to a scenario where a failure occurs in switching between indirect connection and direct connection of a relay. The remote terminal and the relay terminal can report relevant information to the network device, enabling the network device to adjust and / or optimize the relay switching configuration based on this information, thereby improving the switching success rate and ensuring service continuity. BRIEF DESCRIPTION OF THE DRAWINGS

[0072] Figure 1 is a schematic flowchart of an information reporting method provided by an embodiment of the present application Figure 1 ;

[0073] Figure 2 is a schematic flowchart of an information reporting method provided by an embodiment of the present application Figure 2 ;

[0074] Figure 3 is a schematic flowchart of an information reporting method provided by an embodiment of the present application Figure 3 ;

[0075] Figure 4 is a schematic structural diagram of a first remote terminal provided by an embodiment of the present application Figure 1 ;

[0076] Figure 5 is a schematic structural diagram of a first remote terminal provided by an embodiment of the present application Figure 2 ;

[0077] Figure 6 is a schematic structural diagram of a first relay terminal provided by an embodiment of the present application Figure 1 ;

[0078] Figure 7 is a schematic structural diagram of a first relay terminal provided by an embodiment of the present application Figure 2 ;

[0079] Figure 8 is a schematic structural diagram of a network device provided by an embodiment of the present application Figure 1 ;

[0080] Figure 9 is a schematic structural diagram of a network device provided by an embodiment of the present application Figure 2 . DETAILED DESCRIPTION OF THE EMBODIMENTS

[0081] In order to make the objectives, technical solutions and advantages of the present application more clear and understandable, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0082] The technical solution of the present application and how the technical solution of the present application solves the above technical problems will be specifically described below 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.

[0083] In addition, the technical solutions described in the embodiments of the present application can be arbitrarily combined without conflict.

[0084] The embodiment of the present application provides an information reporting method, which is applied to a relay communication scenario, specifically, it may be an L2U2N relay scenario, which is not limited in the embodiment of the present application. The information reporting method provided by the embodiment of the present application will be described in detail below from the perspectives of the first remote terminal, the first relay terminal, and the network device. Among them, the first remote terminal may be any remote terminal in the relay communication scenario, and the network device may be a device such as a base station, which is not limited in the embodiment of the present application.

[0085] Figure 1 Schematic diagram of the process of an information reporting method provided by an embodiment of the present application Figure 1 As Figure 1 shown, in the embodiment of the present application, the information reporting method applied to the first remote terminal mainly includes the following steps:

[0086] S101. Report first information to the network device; wherein, the first information includes information related to the failure of switching between indirect connection and direct connection of the relay.

[0087] In the embodiment of the present application, the first remote terminal may report first information to the network device; wherein, the first information includes information related to the failure of switching between indirect connection and direct connection of the relay.

[0088] It can be understood that, in the embodiment of the present application, for the situation of the failure of switching between indirect connection and direct connection of the relay, including the failure of switching from indirect connection to direct connection and the failure of switching from direct connection to indirect connection, the first remote terminal may report relevant information to the network device, so that the network device can accurately and efficiently perform configuration adjustment and / or optimization of the switching between indirect connection and direct connection, thereby effectively avoiding switching failure or radio link failure, improving the switching success rate, and ensuring service continuity.

[0089] In the embodiment of the present application, the first information includes at least one of the following:

[0090] The first handover type, which is used to indicate the failure of the indirect connection to direct connection handover or the failure of the direct connection to indirect connection handover;

[0091] The reason for handover failure;

[0092] During the indirect connection to direct connection handover, the measurement result of the sidelink (SL) signal of the relay terminal to which the first remote terminal has accessed, or during the direct connection to indirect connection handover, the measurement result of the SL signal of the relay terminal to which the first remote terminal initiates access;

[0093] During the direct connection to indirect connection handover, the measurement results of the SL signals of at least one relay terminal different from the relay terminal to which the first remote terminal initiates access.

[0094] It should be noted that in the embodiments of the present application, the first handover type, that is, the handover type indicating handover failure, can specifically use 2-bit information to respectively indicate the failure of the indirect connection to direct connection handover and the failure of the direct connection to indirect connection handover. Of course, other methods can also be used to represent the first handover type, which can be set according to actual needs, and the embodiments of the present application do not make limitations.

[0095] It should be noted that in the embodiments of the present application, the reason for handover failure is used to indicate the specific reason for handover failure, which is SL radio link failure (RLF) / PC5 RLF or air interface RLF / Uu RLF. The reason for handover failure can be represented in one of the following ways: introducing two new fields to respectively indicate that the reason for handover failure is SL RLF / PC5 RLF or air interface RLF / Uu RLF; introducing a new field to indicate whether the reason for handover failure is SL RLF / PC5 RLF. For example, when this field is set to 1 or True, it indicates that the reason for handover failure is SL RLF / PC5 RLF, otherwise, it indicates that the reason for handover failure is air interface RLF / Uu RLF.

[0096] It can be understood that in the embodiments of the present application, providing the reason for handover failure in the first information reported by the first remote terminal helps the network device to specifically analyze the reason for failure and perform targeted parameter adjustment and / or optimization.

[0097] It should be noted that in the embodiments of the present application, the measurement result of the SL signal of the relay terminal to which the first remote terminal has accessed or initiates access can be characterized by the reference signal receiving power (RSRP). Of course, other information can also be used to represent it, and the embodiments of the present application do not make limitations.

[0098] It should be noted that in the embodiments of the present application, in the handover from direct connection to indirect connection, the SL signal measurement results of at least one relay terminal different from the relay terminal initiating access to the first remote terminal may include the identifiers of each relay terminal and the corresponding SL signal measurement results.

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

[0100] In the handover from indirect connection to direct connection, the identifier of the target New Radio (NR) cell of the first remote terminal, or in the handover from direct connection to indirect connection, the identifier of the source NR cell of the first remote terminal;

[0101] In the handover from indirect connection to direct connection, the identifier of the relay terminal already accessed by the first remote terminal, or in the handover from direct connection to indirect connection, the identifier of the relay terminal initiating access to the first remote terminal;

[0102] The identifier of the first remote terminal;

[0103] In the handover from indirect connection to direct connection, the measurement results of the target NR cell of the first remote terminal and / or other NR cells under the base station to which the target NR cell belongs, or in the handover from direct connection to indirect connection, the measurement results of the source NR cell of the first remote terminal;

[0104] The identifier of the relay terminal for which the first remote terminal initiates radio resource control (RRC) connection reestablishment;

[0105] The identifier of the NR cell for which the first remote terminal initiates RRC connection reestablishment;

[0106] The time interval between the occurrence time of radio link failure or relay link failure and the time of the most recent connection handover;

[0107] The location information of the first remote terminal;

[0108] In the handover from indirect connection to direct connection, the distance between the first remote terminal and the relay terminal already accessed, or in the handover from direct connection to indirect connection, the distance between the first remote terminal and the relay terminal initiating access.

[0109] It should be noted that in the embodiments of the present application, the identifier of the first remote terminal may be the identifier of the first remote terminal itself in the handover from indirect connection to direct connection, and may be the cell radio network temporary identifier (C-RNTI) of the first remote terminal in the handover from direct connection to indirect connection.

[0110] It should be noted that in the embodiments of the present application, the measurement results of the target NR cell, the source NR cell, and other NR cells of the first remote terminal can be represented by RSRP / Reference Signal Receiving Quality (RSRQ) / Signal to Interference plus Noise Ratio (SINR). Of course, they can also be represented by other information, which is not limited in the embodiments of the present application.

[0111] In the embodiments of the present application, when the first remote terminal reports the first information to the network device, it may be that after the first remote terminal receives the request message sent by the network device, it reports the first information to the network device, where the request message is used to request the first remote terminal to report information related to the handover failure. Or, it may be that the first remote terminal actively reports the first information to the network device. Or, it may also be that the first remote terminal sends a notification message to the network device to notify the network device that the first remote terminal stores the first information and then reports the first information to the network device after receiving the request message sent by the network device. The embodiments of the present application do not limit the manner of triggering the first remote terminal to report the first information.

[0112] It should be noted that in the embodiments of the present application, the first information can reuse the existing RLF report or add new signaling / elements for reporting the first information. If the existing RLF report is reused, an IE can be added to the RLF report or in the existing extended field, and it can be indicated explicitly that the report is a report of information related to the handover of the first remote terminal, or implicitly, for example, the first information includes the first handover type and / or the cause of handover failure, etc., indicating that the report is a report of information related to the handover of the first remote terminal.

[0113] Figure 2 Schematic flow of an information reporting method provided by an embodiment of the present application Figure 2 As Figure 2 shown, in the embodiments of the present application, the information reporting method applied to the first relay terminal mainly includes the following steps:

[0114] S201. Report the second information to the network device; where the second information includes information related to the failure of the relay direct connection to indirect connection handover.

[0115] In the embodiments of the present application, the first relay terminal may report the second information to the network device; where the second information includes information related to the failure of the relay direct connection to indirect connection handover.

[0116] It can be understood that, in the embodiments of the present application, as a relay terminal, the first relay terminal can report relevant information to the network device when the handover from direct connection to indirect connection fails, so that the network device can accurately and efficiently perform configuration adjustment and / or optimization of the handover from direct connection to indirect connection, thereby effectively avoiding handover failure or radio link failure, improving the handover success rate, and ensuring service continuity.

[0117] In the embodiments of the present application, the second information includes at least one of the following:

[0118] The identifier of the NR cell to which the first relay terminal is connected;

[0119] The identifier of the first relay terminal;

[0120] The identifier of the remote terminal that initiates access to the first relay terminal;

[0121] The second handover type, which is used to indicate the failure of the handover from direct connection to indirect connection;

[0122] The time interval between the moment when the first relay terminal establishes a relay connection with a certain remote terminal and the moment when a relay link failure occurs;

[0123] The measurement result of the downlink reference signal measured by the first relay terminal;

[0124] The relay terminal configuration parameters received by the first relay terminal most recently.

[0125] It should be noted that, in the embodiments of the present application, the identifier of the NR cell to which the first relay terminal is connected refers to the identifier of the source NR cell in the handover from direct connection to indirect connection.

[0126] It should be noted that, in the embodiments of the present application, the identifier of the first relay terminal may be the C-RNTI of the first relay terminal, and the identifier of the remote terminal that initiates access to the first relay terminal may be the identifier of the remote terminal itself.

[0127] It should be noted that, in the embodiments of the present application, the time interval between the moment when the first relay terminal establishes a relay connection with a certain remote terminal and the moment when a relay link failure occurs can be used to determine whether a certain remote terminal immediately experiences a relay link failure after connecting to the first relay terminal, thereby assisting in determining whether the first relay terminal is suitable as a relay terminal.

[0128] It should be noted that, in the embodiments of the present application, the measurement result of the downlink reference signal may be represented by RSRP / RSRQ / SINR. Of course, it may also be represented by other information, which is not limited in the embodiments of the present application.

[0129] In an embodiment of the present application, the first relay terminal reports second information to the network device. It may be that after the first relay terminal receives a request message sent by the network device, the first relay terminal reports the second information to the network device, where the request message is used to request the first relay terminal to report information related to a handover failure; or, the first relay terminal actively reports the second information to the network device, or the first relay terminal sends a notification message to the network device to notify the network device that the first relay terminal stores the second information and then reports the second information to the network device after receiving the request message sent by the network device. The embodiments of the present application do not limit the manner of triggering the first relay terminal to report the second information.

[0130] Figure 3 Schematic flow of an information reporting method provided by an embodiment of the present application Figure 3 As Figure 3 shown, in an embodiment of the present application, the information reporting method applied to a network device mainly includes the following steps:

[0131] S301. Receive first information reported by a first remote terminal; wherein, the first information includes information related to a handover failure between a relay indirect connection and a direct connection;

[0132] and / or, receive second information reported by a first relay terminal; wherein, the second information includes information related to a handover failure from a relay direct connection to an indirect connection.

[0133] In an embodiment of the present application, corresponding to the methods executed by the above first remote terminal and first relay terminal, the network device may receive the first information reported by the first remote terminal and / or receive the second information reported by the first relay terminal.

[0134] In an embodiment of the present application, the first information includes at least one of the following:

[0135] A first handover type, used to indicate a handover failure from an indirect connection to a direct connection, or a handover failure from a direct connection to an indirect connection;

[0136] The reason for the handover failure;

[0137] In the handover from an indirect connection to a direct connection, the SL signal measurement result of the relay terminal already accessed by the first remote terminal, or in the handover from a direct connection to an indirect connection, the SL signal measurement result of the relay terminal to which the first remote terminal initiates access;

[0138] In the handover from a direct connection to an indirect connection, the SL signal measurement results of at least one relay terminal different from the relay terminal to which the first remote terminal initiates access.

[0139] In an embodiment of the present application, the second information includes at least one of the following:

[0140] Identifier of the NR cell connected to the first relay terminal;

[0141] Identifier of the first relay terminal;

[0142] Identifier of the remote terminal that initiates access to the first relay terminal;

[0143] The second handover type, used to indicate the failure of the direct connection to the indirect connection handover;

[0144] The time interval between the moment when the first relay terminal establishes a relay connection with a certain remote terminal and the moment when the relay link fails;

[0145] Measurement result of the downlink reference signal measured by the first relay terminal;

[0146] The relay terminal configuration parameters last received by the first relay terminal.

[0147] It should be noted that, in the embodiments of the present application, the first information may further include the various information described in the method on the first remote terminal side above. For the explanations of the various information included in the first information and the second information, please refer to the methods on the first remote terminal and the first relay terminal side above, which will not be elaborated here.

[0148] In the embodiments of the present application, when the network device receives the first information, it may directly receive the first information reported by the first remote terminal. In this case, the network device and the first remote terminal adopt a direct connection. Or, it may receive the first information forwarded by a certain relay terminal, where the relay terminal refers to the relay terminal connected after the first remote terminal re-establishes successfully. In this case, the network node and the first remote terminal adopt an indirect connection. Or, it may also receive the first information forwarded by other nodes, where the node is a third-party node other than the network node that has a handover failure, and the node can receive the first message through a direct connection or an indirect connection with the first remote terminal.

[0149] In the embodiments of the present application, when the network device receives the second information, it may directly receive the second information reported by the first relay terminal, or it may receive the second information forwarded by other nodes, where the node is a third-party node other than the network node that has a handover failure.

[0150] In the embodiments of the present application, when the network device receives the first information and / or the second information, it can perform configuration adjustment and / or optimization of the handover between the indirect connection and the direct connection based on the first information and / or the second information, thereby effectively avoiding handover failures or radio link failures, improving the handover success rate, and ensuring service continuity.

[0151] In an embodiment of the present application, the network device configures and / or optimizes the handover between indirect connection and direct connection based on the first information, including: for the handover from indirect connection to direct connection, if it is determined based on the first information that the handover is too late or too early, the first handover condition is updated based on the first information to adjust and / or optimize the handover timing of the handover from indirect connection to direct connection; the first handover condition is used to trigger the handover from indirect connection to direct connection; if it is determined based on the first information that the handover is incorrect, the target NR cell of the first remote terminal in the handover from indirect connection to direct connection is reselected based on the first information; and / or, for the handover from direct connection to indirect connection, if it is determined based on the first information that the handover is too late or too early, the second handover condition is updated based on the first information to adjust and / or optimize the handover timing of the handover from direct connection to indirect connection; the second handover condition is used to trigger the handover from direct connection to indirect connection; if it is determined based on the first information that the handover is incorrect, the relay terminal to which the first remote terminal initiates access in the handover from direct connection to indirect connection is reselected based on the first information.

[0152] In an embodiment of the present application, for the handover from indirect connection to direct connection, if it is determined based on the first handover type, the identifier of the NR cell to which the first remote terminal initiates RRC connection reconstruction, the handover failure reason, etc. in the first information that the handover from indirect connection to direct connection is too late. For example, if the first remote terminal experiences a relay link failure and the NR cell to which it attempts to reconstruct is the target NR cell, the first handover condition used to trigger the handover from indirect connection to direct connection can be updated. For example, by combining information such as the measurement results of the NR cell and the SL signal measurement results in the first information, the signal quality threshold of the target NR cell in the measurement event is reduced and / or the signal quality threshold of the relay terminal is increased, with the aim of starting the handover process earlier.

[0153] In an embodiment of the present application, for the handover from indirect connection to direct connection, if it is determined based on the first handover type, the identifier of the relay terminal to which the first remote terminal initiates RRC connection reconstruction, the handover failure reason, the time interval between the occurrence time of the radio link failure and the time of the most recent connection handover, etc. in the first information that the handover from indirect connection to direct connection is too early. For example, if the first remote terminal experiences an RLF on the air interface and attempts to reconstruct the original accessed relay terminal, the first handover condition used to trigger the handover from indirect connection to direct connection can be updated. For example, by combining the measurement results of the NR cell and the SL signal measurement results in the first information, the signal quality threshold of the target NR cell in the measurement event is increased and / or the signal quality threshold of the relay terminal is reduced, with the aim of delaying the start of the handover process.

[0154] In the embodiments of the present application, for the handover from indirect connection to direct connection, if it is determined that there is an incorrect handover based on the first handover type in the first information, the identifier of the NR cell where the first remote terminal initiates RRC reconstruction, the handover failure reason, etc., for example, when the first remote terminal experiences a handover failure or a radio link failure, and the NR cell that attempts to be reconstructed is another NR cell under a network other than the target NR cell, then the selection of the target NR cell in similar situations can be adjusted before the subsequent handover command is issued by combining the identifier of the NR cell where the RRC connection reconstruction is initiated by the first remote terminal in the first information, the location information of the first remote terminal, etc.

[0155] Exemplarily, in the embodiments of the present application, for the method of adjusting the selection of the target NR cell, by combining the identifier of the NR cell where the first remote terminal initiates RRC connection reconstruction in the first information, the location information of the first remote terminal, etc., a correspondence table between the identifier of the reconstructed NR cell and the location of the remote terminal is stored. When the first remote terminal moves to a certain position and its vicinity recorded in the relationship table, the corresponding NR cell in the relationship table is preferentially selected as the target NR cell for it.

[0156] In the embodiments of the present application, for the handover from direct connection to indirect connection, if it is determined that the handover from direct connection to indirect connection is too early based on the first handover type in the first information, the identifier of the NR cell where the first remote terminal initiates RRC connection reconstruction, the handover failure reason, the time interval between the occurrence time of the relay link failure and the time of the most recent connection handover, etc., for example, when a handover failure or a radio link failure occurs, and the NR cell that attempts to be reconstructed is still the source NR cell, then the second handover condition for triggering the handover from direct connection to indirect connection can be updated. For example, by combining the measurement results of the NR cell and the SL signal measurement results in the first information, the signal quality threshold of the source NR cell in the measurement event is reduced and / or the signal quality threshold of the relay terminal is increased, aiming to postpone the start of the handover process.

[0157] In the embodiments of the present application, for the handover from direct connection to indirect connection, if it is determined that the handover from direct connection to indirect connection is too late based on the first handover type in the first information, the identifier of the NR cell where the first remote terminal initiates RRC connection reconstruction, the handover failure reason, etc., for example, when the first remote terminal experiences a radio link failure and the cell that attempts to be reconstructed is the target NR cell, then the second handover condition for triggering the handover from direct connection to indirect connection can be updated. For example, by combining the measurement results of the NR cell and the SL signal measurement results in the first information, the signal quality threshold of the source NR cell in the measurement event is increased and / or the signal quality threshold of the relay terminal is reduced, aiming to start the handover process earlier.

[0158] In the embodiments of the present application, for the handover from direct connection to indirect connection, when it is determined that there is an incorrect handover based on the first handover type in the first information, the identifier of the NR cell where the first remote terminal initiates RRC reconstruction, the handover failure reason, the time interval between the occurrence time of radio link failure or relay link failure and the time of the most recent handover, etc. For example, when the first remote terminal has a handover failure or a radio link failure, and the NR cell that attempts to be reconstructed is an NR cell other than the target NR cell, then the identifier of the relay terminal that initiates RRC connection reconstruction in the first information, the SL signal measurement results of at least one relay terminal different from the relay terminal to which the first remote terminal initiates access, the location information of the first remote terminal, and / or the distance between the first remote terminal and the relay terminal can be combined to reselect the relay terminal to which access is initiated in a similar situation before the subsequent handover command is issued.

[0159] Exemplarily, in the embodiments of the present application, for the method of reselecting the relay terminal to which access is initiated, the identifier of the relay terminal that initiates RRC connection reconstruction in the first information, the SL signal measurement results of at least one relay terminal different from the relay terminal to which the first remote terminal initiates access, the location information of the first remote terminal, etc. are combined to form a relationship table of the reconstruction relay terminal identifier - relay terminal SL signal measurement result - remote terminal location. When the first remote terminal moves to a certain position and its vicinity recorded in the relationship table, the corresponding relay terminal in the relationship table or a relay terminal with an approximate SL signal measurement result is preferentially selected as the relay terminal to which access is initiated.

[0160] In the embodiments of the present application, the first remote terminal performs configuration adjustment and / or optimization for the handover between indirect connection and direct connection based on the second information, including: judging whether the relay terminal configuration parameters of the first relay terminal are correct based on the second information; and adjusting and / or optimizing the relay terminal configuration parameters of the first relay terminal when the judgment result is negative.

[0161] It should be noted that, in the embodiments of the present application, the network device may determine whether the time interval between the moment when the first relay terminal in the second information establishes a relay connection with a certain remote terminal and the moment when the relay link fails is small enough. For example, it is determined whether it is less than or equal to a preset threshold value. If it is small enough, it means that the relay link fails immediately after the remote terminal connects to the first relay UE. Based on this, it is necessary to combine the measurement result of the downlink reference signal in the second information and the relay terminal configuration parameters of the first relay terminal to determine whether there is an incorrect configuration. For example, the measurement result of the downlink reference signal has exceeded the configured range, or the measurement result of the downlink reference signal is within a preset threshold value from the boundary of the configured range. If it is determined that the configuration is incorrect, the relay terminal configuration parameters for the first relay terminal are appropriately adjusted and / or optimized. Otherwise, the relay terminal configuration parameters of the first relay terminal do not need to be adjusted and / or optimized.

[0162] An embodiment of the present application provides a first remote terminal. Figure 4 The structure diagram of a first remote terminal provided by an embodiment of the present application Figure 1 . As Figure 4 shown, the first remote terminal includes:

[0163] A first communication module 401, configured to report first information to the network device; wherein, the first information includes information related to the failure of the handover between the relay indirect connection and the direct connection.

[0164] In an embodiment of the present application, the first information includes at least one of the following:

[0165] A first handover type, used to indicate the failure of the handover from the indirect connection to the direct connection, or the failure of the handover from the direct connection to the indirect connection;

[0166] The reason for the handover failure;

[0167] In the handover from the indirect connection to the direct connection, the measurement result of the sidelink (SL) signal of the relay terminal already accessed by the first remote terminal, or in the handover from the direct connection to the indirect connection, the measurement result of the SL signal of the relay terminal initiated by the first remote terminal to access;

[0168] In the handover from the direct connection to the indirect connection, the measurement results of the SL signals of at least one relay terminal different from the relay terminal initiated by the first remote terminal to access.

[0169] In an embodiment of the present application, the first information further includes at least one of the following:

[0170] During the indirect connection to direct connection handover, the identifier of the target New Radio (NR) cell of the first remote terminal, or during the direct connection to indirect connection handover, the identifier of the source NR cell of the first remote terminal;

[0171] During the indirect connection to direct connection handover, the identifier of the relay terminal to which the first remote terminal is connected, or during the direct connection to indirect connection handover, the identifier of the relay terminal to which the first remote terminal initiates access;

[0172] The identifier of the first remote terminal;

[0173] During the indirect connection to direct connection handover, the measurement results of the target NR cell of the first remote terminal and / or other NR cells under the base station to which the target NR cell belongs, or during the direct connection to indirect connection handover, the measurement results of the source NR cell of the first remote terminal;

[0174] The identifier of the relay terminal for which the first remote terminal initiates radio resource control (RRC) connection reestablishment;

[0175] The identifier of the NR cell for which the first remote terminal initiates RRC connection reestablishment;

[0176] The time interval between the occurrence of radio link failure or relay link failure and the time of the most recent connection handover;

[0177] The location information of the first remote terminal;

[0178] During the indirect connection to direct connection handover, the distance between the first remote terminal and the connected relay terminal, or during the direct connection to indirect connection handover, the distance between the first remote terminal and the relay terminal to which it initiates access.

[0179] Figure 5 This is a schematic structure of a first remote terminal provided by an embodiment of the present application Figure 2 As Figure 5 shown, the first remote terminal includes: a first processor 501, a first memory 502, and a first communication bus 503;

[0180] The first communication bus 503 is used to implement the communication connection between the first processor 501 and the first memory 502;

[0181] The first processor 501 is configured to execute one or more computer programs stored in the first memory 502 to implement an information reporting method applied to the first remote terminal.

[0182] An embodiment of the present application provides a first relay terminal. Figure 6Structural schematic of a first relay terminal provided by an embodiment of the present application Figure 1 As shown Figure 6 in the figure, the first relay terminal includes:

[0183] A second communication module 601, configured to report second information to a network device; wherein, the second information includes information related to the failure of the relay direct connection to indirect connection handover.

[0184] In an embodiment of the present application, the second information includes at least one of the following:

[0185] The identifier of the NR cell to which the first relay terminal is connected;

[0186] The identifier of the first relay terminal;

[0187] The identifier of the remote terminal that initiates access to the first relay terminal;

[0188] A second handover type, used to indicate the failure of the direct connection to indirect connection handover;

[0189] The time interval between the moment when the first relay terminal establishes a relay connection with a certain remote terminal and the moment when a relay link failure occurs;

[0190] The measurement result of the downlink reference signal measured by the first relay terminal;

[0191] The relay terminal configuration parameters received by the first relay terminal most recently.

[0192] Figure 7 Structural schematic of a first relay terminal provided by an embodiment of the present application Figure 2 As shown Figure 7 in the figure, the first relay terminal includes: a second processor 701, a second memory 702, and a second communication bus 703;

[0193] The second communication bus 703 is used to implement the communication connection between the second processor 701 and the second memory 702;

[0194] The second processor 701 is configured to execute one or more computer programs stored in the second memory 702 to implement an information reporting method applied to the first relay terminal.

[0195] An embodiment of the present application provides a network device. Figure 8 Structural schematic of a network device provided by an embodiment of the present application Figure 1 As shown Figure 8 in the figure, the network device includes:

[0196] The third communication module 801 is configured to receive the first information reported by the first remote terminal; wherein, the first information includes information related to the failure of switching between relay indirect connection and direct connection; and / or, receive the second information reported by the first relay terminal; wherein, the second information includes information related to the failure of switching from relay direct connection to indirect connection.

[0197] In an embodiment of the present application, the first information includes at least one of the following:

[0198] The first switching type, which is used to indicate the failure of switching from indirect connection to direct connection, or the failure of switching from direct connection to indirect connection;

[0199] The reason for the switching failure;

[0200] During the switching from indirect connection to direct connection, the SL signal measurement result of the relay terminal already accessed by the first remote terminal, or during the switching from direct connection to indirect connection, the SL signal measurement result of the relay terminal to which the first remote terminal initiates access;

[0201] During the switching from direct connection to indirect connection, the SL signal measurement results of at least one relay terminal different from the relay terminal to which the first remote terminal initiates access.

[0202] In an embodiment of the present application, the second information includes at least one of the following:

[0203] The identifier of the NR cell to which the first relay terminal is connected;

[0204] The identifier of the first relay terminal;

[0205] The identifier of the remote terminal that initiates access to the first relay terminal;

[0206] The second switching type, which is used to indicate the failure of switching from direct connection to indirect connection;

[0207] The time interval between the moment when the first relay terminal establishes a relay connection with a certain remote terminal and the moment when a relay link failure occurs;

[0208] The measurement result of the downlink reference signal measured by the first relay terminal;

[0209] The relay terminal configuration parameters received by the first relay terminal most recently.

[0210] In an embodiment of the present application, the network device further includes: a processing module 802 (not shown in the figure);

[0211] The processing module 802 is configured to perform configuration adjustment and / or optimization of the switching between indirect connection and direct connection based on the first information and / or the second information.

[0212] In an embodiment of the present application, the processing module 802 is configured to, for the indirect connection to direct connection handover, if it is determined based on the first information that the handover is too late or too early, update the first handover condition based on the first information to adjust and / or optimize the handover timing of the indirect connection to direct connection handover; the first handover condition is used to trigger the indirect connection to direct connection handover; if it is determined based on the first information that the handover is incorrect, reselect the target NR cell of the first remote terminal in the indirect connection to direct connection handover; and / or, for the direct connection to indirect connection handover, if it is determined based on the first information that the handover is too late or too early, update the second handover condition based on the first information to adjust and / or optimize the handover timing of the direct connection to indirect connection handover; the second handover condition is used to trigger the indirect connection to direct connection handover; if it is determined based on the first information that the handover is incorrect, reselect the relay terminal to which the first remote terminal initiates access in the direct connection to indirect connection handover.

[0213] In an embodiment of the present application, the processing module 802 is configured to, based on the second information, determine whether the relay terminal configuration parameters of the first relay terminal are correct; in the case where the determination result is negative, adjust and / or optimize the relay terminal configuration parameters of the first relay terminal.

[0214] Figure 9 The structural schematic diagram of a network device provided by an embodiment of the present application Figure 2 As Figure 9 shown, the network device includes: a third processor 901, a third memory 902, and a third communication bus 903;

[0215] The third communication bus 903 is used to implement the communication connection between the third processor 901 and the third memory 902;

[0216] The third processor 901 is configured to execute one or more computer programs stored in the third memory 902 to implement the information reporting method applied to the network device.

[0217] Embodiments of the present application provide a computer-readable storage medium, on which a computer program is stored. When the computer program is executed, the above-mentioned information reporting method is implemented. The computer-readable storage medium may be a volatile memory, such as a random-access memory (RAM); or a 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 it 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.

[0218] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can be in the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can be in the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memories and optical memories, etc.) containing computer-usable program code.

[0219] The present application is described with reference to the schematic flow diagrams and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each flow and / or block in the schematic flow diagrams and / or block diagrams can be implemented by computer program instructions, and the combination of the flows and / or blocks in the schematic flow diagrams and / or block diagrams can also be implemented. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate a device for implementing the functions specified in Figure 1 one or more of the flows Figure 1 or multiple flows and / or blocks

[0220] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory generate a manufactured article including an instruction device, and the instruction device implements the functions specified in Figure 1 one or more of the flows Figure 1 or multiple flows and / or blocks

[0221] These computer program instructions can also be loaded onto a computer or other programmable data processing apparatus, so that a series of operation steps are performed on the computer or other programmable apparatus to generate a computer-implemented process, thereby providing instructions for implementing the process shown in the flowchart Figure 1 for one or more processes and / or boxes Figure 1 steps for the functions specified in one or more boxes.

[0222] As described above, this is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed in the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An information reporting method, characterized in that, Applied to the first remote terminal, the method includes: Reporting first information to a network device; Wherein, the first information includes information related to the failure of handover between relay indirect connection and direct connection.

2. The method according to claim 1, wherein The first information includes at least one of the following: A first handover type, used to indicate the failure of handover from indirect connection to direct connection, or the failure of handover from direct connection to indirect connection; The reason for handover failure; During the handover from indirect connection to direct connection, the measurement result of the sidelink (SL) signal of the relay terminal that the first remote terminal has accessed, or during the handover from direct connection to indirect connection, the measurement result of the SL signal of the relay terminal that the first remote terminal initiates access to; During the handover from direct connection to indirect connection, the measurement results of the SL signals of at least one relay terminal different from the relay terminal that the first remote terminal initiates access to.

3. The method according to claim 2, characterized in that, The first information further includes at least one of the following: During the handover from indirect connection to direct connection, the identifier of the target New Radio (NR) cell of the first remote terminal, or during the handover from direct connection to indirect connection, the identifier of the source NR cell of the first remote terminal; During the handover from indirect connection to direct connection, the identifier of the relay terminal that the first remote terminal has accessed, or during the handover from direct connection to indirect connection, the identifier of the relay terminal that the first remote terminal initiates access to; The identifier of the first remote terminal; During the handover from indirect connection to direct connection, the measurement results of the target NR cell of the first remote terminal and / or other NR cells under the base station to which the target NR cell belongs, or during the handover from direct connection to indirect connection, the measurement results of the source NR cell of the first remote terminal; The identifier of the relay terminal for which the first remote terminal initiates radio resource control (RRC) connection reestablishment; The identifier of the NR cell for which the first remote terminal initiates RRC connection reestablishment; The time interval between the occurrence time of radio link failure or relay link failure and the time of the most recent connection handover; The location information of the first remote terminal; During the handover from indirect connection to direct connection, the distance between the first remote terminal and the relay terminal that has been accessed, or during the handover from direct connection to indirect connection, the distance between the first remote terminal and the relay terminal that initiates access.

4. An information reporting method, characterized in that, Applied to the first relay terminal, the method includes: Reporting second information to a network device; Wherein, the second information includes information related to the failure of handover from relay direct connection to indirect connection.

5. The method according to claim 4, characterized in that, The second information includes at least one of the following: The identifier of the NR cell to which the first relay terminal is connected; The identifier of the first relay terminal; The identifier of the remote terminal that initiates access to the first relay terminal; A second handover type, used to indicate the failure of handover from direct connection to indirect connection; The time interval between the time when the first relay terminal establishes a relay connection with a certain remote terminal and the time of occurrence of relay link failure; The measurement result of the downlink reference signal measured by the first relay terminal; The relay terminal configuration parameters received by the first relay terminal most recently.

6. An information reporting method, characterized in that, Applied to a network device, the method includes: Receive the first information reported by the first remote terminal; wherein, the first information includes information related to the failure of the relay to switch between indirect connection and direct connection. And / or, receive the second information reported by the first relay terminal; wherein, the second information includes information related to the failure of the relay to switch from direct connection to indirect connection.

7. The method according to claim 6, wherein The first information includes at least one of the following: The first handover type, which is used to indicate the failure of the indirect connection to direct connection handover, or the failure of the direct connection to indirect connection handover. The cause of the handover failure. During the indirect connection to direct connection handover, the measurement result of the SL signal of the relay terminal to which the first remote terminal has accessed, or during the direct connection to indirect connection handover, the measurement result of the SL signal of the relay terminal to which the first remote terminal initiates access. During the direct connection to indirect connection handover, the measurement results of the SL signals of at least one relay terminal different from the relay terminal to which the first remote terminal initiates access.

8. The method according to claim 6, characterized in that The second information includes at least one of the following: The identifier of the NR cell to which the first relay terminal is connected. The identifier of the first relay terminal. The identifier of the remote terminal that initiates access to the first relay terminal. The second handover type, which is used to indicate the failure of the direct connection to indirect connection handover. The time interval between the moment when the first relay terminal establishes a relay connection with a certain remote terminal and the moment when a relay link failure occurs. The measurement result of the downlink reference signal measured by the first relay terminal. The relay terminal configuration parameters received by the first relay terminal most recently.

9. The method according to claim 6, wherein The method further includes: Based on the first information and / or the second information, perform configuration adjustment and / or optimization of the handover between indirect connection and direct connection.

10. The method according to claim 9, characterized in that The performing configuration adjustment and / or optimization of the handover between indirect connection and direct connection based on the first information includes: For the indirect connection to direct connection handover, if it is determined based on the first information that the handover is too late or too early, update the first handover condition based on the first information to adjust and / or optimize the handover timing of the indirect connection to direct connection handover; the first handover condition is used to trigger the indirect connection to direct connection handover. If it is determined based on the first information that the handover is incorrect, reselect the target NR cell of the first remote terminal during the indirect connection to direct connection handover based on the first information. And / or, for the direct connection to indirect connection handover, if it is determined based on the first information that the handover is too late or too early, update the second handover condition based on the first information to adjust and / or optimize the handover timing of the direct connection to indirect connection handover; the second handover condition is used to trigger the indirect connection to direct connection handover. If it is determined based on the first information that the handover is incorrect, reselect the relay terminal to which the first remote terminal initiates access during the direct connection to indirect connection handover based on the first information.

11. The method according to claim 9, wherein The performing configuration adjustment and / or optimization of the handover between indirect connection and direct connection based on the second information includes: Based on the second information, determine whether the relay terminal configuration parameters of the first relay terminal are correct. In the case where the judgment result is negative, adjust and / or optimize the relay terminal configuration parameters of the first relay terminal.

12. A first remote terminal, characterized in that, Comprising: A first processor, a first memory, and a first communication bus; The first communication bus is used 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 1-3.

13. A first relay terminal, characterized in that, Comprising: A second processor, a second memory, and a second communication bus; The second communication bus is used 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 according to any one of claims 4-5.

14. A network device, characterized in that, Comprising: A third processor, a third memory, and a third communication bus; The third communication bus is used to implement a communication connection between the third processor and the third memory; The third processor is configured to execute one or more computer programs stored in the third memory to implement the information reporting method according to any one of claims 6-11.

15. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed, it implements the information reporting method according to any one of claims 1-11.

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