Method and apparatus for optimizing CHO configuration information

Abstract

This application discloses a method and apparatus for optimizing CHO configuration information, belonging to the field of communication technology. The method for optimizing CHO configuration information in this application includes: a source network-side device sending conditional switching CHO configuration information to a terminal; the source network-side device receiving first indication information, the first indication information including a radio link failure (RLF) report; and the source network-side device optimizing the CHO configuration information corresponding to the terminal based on the first indication information.

Description

Technical Field

[0001] This application belongs to the field of communication technology, specifically relating to a method and apparatus for optimizing CHO configuration information. Background Technology

[0002] During a Conditional Handover (CHO) process, if an Radio Link Failure (RLF) occurs between the terminal and the cell, the terminal needs to report some relevant information to the network-side device. This allows the network-side device to analyze whether the parameters of the CHO execution conditions configured for the terminal and the list of candidate cells configured for CHO are reasonable, so that the network-side device can optimize the CHO configuration information and increase the probability of successful handover.

[0003] However, during or after the CHO process (such as when an RLF occurs after switching to a CHO candidate cell), the terminal has difficulty determining whether to send the relevant information for updating the CHO configuration to the corresponding network-side device that needs to update the CHO configuration information, resulting in a low success rate for updating the CHO configuration information. Summary of the Invention

[0004] This application provides a method and apparatus for optimizing CHO configuration information, which can solve the technical problem of low success rate in updating CHO configuration information in the prior art.

[0005] Firstly, a method for optimizing CHO configuration information is provided, the method comprising:

[0006] The source network side device sends conditional switching CHO configuration information to the terminal;

[0007] The source network side device receives first indication information, which includes a Radio Link Failure (RLF) report.

[0008] The source network side device optimizes the CHO configuration information corresponding to the terminal based on the first indication information.

[0009] Secondly, a method for processing CHO configuration information is provided, the method comprising:

[0010] The target network-side device receives a Radio Resource Control (RRC) message sent by the terminal;

[0011] The target network-side device obtains a Radio Link Failure (RLF) report based on the RRC message;

[0012] The target network-side device sends a first indication message to the source network-side device;

[0013] The first indication information is used to instruct the source network-side device to optimize the conditional switching CHO configuration information corresponding to the terminal.

[0014] Thirdly, an optimized triggering method for CHO configuration information is provided, the method comprising:

[0015] The terminal receives conditional switching (CHO) configuration information sent by the source network-side device;

[0016] When the terminal experiences a Radio Link Failure (RLF), the terminal sends a Radio Resource Control (RRC) message to the target network device.

[0017] The RRC message includes at least one of RLF indication information and RLF report, which are used to indicate the optimization of CHO configuration information.

[0018] Fourthly, an apparatus for optimizing CHO configuration information is provided, the apparatus comprising:

[0019] The configuration module is used to send condition switching CHO configuration information to the terminal;

[0020] The receiving module is configured to receive first indication information, the first indication information including a radio link failure (RLF) report;

[0021] The optimization module is used to optimize the CHO configuration information corresponding to the terminal according to the first indication information.

[0022] Fifthly, a processing apparatus for CHO configuration information is provided, the apparatus comprising:

[0023] The receiving module is used to receive Radio Resource Control (RRC) messages sent by the terminal;

[0024] The acquisition module is used to obtain a Radio Link Failure (RLF) report based on the RRC message;

[0025] The sending module is used to send the first indication information to the source network side device;

[0026] The first indication information is used to instruct the source network-side device to optimize the conditional switching CHO configuration information corresponding to the terminal.

[0027] Sixthly, an optimization triggering device for CHO configuration information is provided, the device comprising:

[0028] The receiving module is used to receive conditional switching (CHO) configuration information sent by the source network-side device;

[0029] The sending module is used to send a Radio Resource Control (RRC) message to the target network-side device when a radio link failure (RLF) occurs at the terminal.

[0030] The RRC message includes at least one of RLF indication information and RLF report, which are used to indicate the optimization of CHO configuration information.

[0031] In a seventh aspect, a terminal is provided, the terminal including a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method described in the third aspect.

[0032] Eighthly, a terminal is provided, including a processor and a communication interface, wherein the communication interface is used to receive conditional handover (CHO) configuration information sent by a source network-side device; and when the terminal experiences a radio link failure (RLF), it sends a radio resource control (RRC) message to a target network-side device.

[0033] A ninth aspect provides a network-side device including a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method as described in the first or second aspect.

[0034] In a tenth aspect, a network-side device is provided, including a processor and a communication interface, wherein the processor and / or the communication interface are used to implement the steps of the method described in the first or second aspect.

[0035] Eleventhly, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect, or the steps of the method described in the second aspect, or the steps of the method described in the third aspect.

[0036] In a twelfth aspect, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being configured to run a program or instructions to implement the steps of the method described in the first aspect, or the steps of the method described in the second aspect, or the steps of the method described in the third aspect.

[0037] In a thirteenth aspect, a computer program / program product is provided, the computer program / program product being stored in a non-transient storage medium, the program / program product being executed by at least one processor to implement the steps of the method as described in the first aspect, or the steps of the method as described in the second aspect, or the steps of the method as described in the third aspect.

[0038] The method and apparatus for optimizing CHO configuration information provided in this application embodiment can enable the source network side device to successfully receive the RLF report and optimize the CHO configuration information corresponding to the terminal based on the RLF report, thereby updating the CHO configuration information and effectively improving the success rate of updating CHO configuration information compared with the prior art. Attached Figure Description

[0039] Figure 1 This is a structural diagram of a wireless communication system applicable to embodiments of this application;

[0040] Figure 2 A flowchart illustrating the method for optimizing CHO configuration information provided in this application embodiment;

[0041] Figure 3 A flowchart illustrating the method for processing CHO configuration information provided in this application embodiment;

[0042] Figure 4 A flowchart illustrating the optimized triggering method for CHO configuration information provided in this application embodiment;

[0043] Figure 5 A schematic diagram of the structure of the device for optimizing CHO configuration information provided in the embodiments of this application;

[0044] Figure 6 A schematic diagram of the structure of the CHO configuration information processing device provided in the embodiments of this application;

[0045] Figure 7 A schematic diagram of the structure of the optimization triggering device for CHO configuration information provided in the embodiments of this application;

[0046] Figure 8 A schematic diagram of the structure of a communication device according to an embodiment of this application;

[0047] Figure 9 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application;

[0048] Figure 10 A schematic diagram of the hardware structure of a network-side device to implement an embodiment of this application. Detailed Implementation

[0049] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0050] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0051] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used with the systems and radio technologies mentioned above, as well as with other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and the term NR is used in most of the following description; however, these technologies can also be applied to applications other than NR systems, such as 6th generation (6G) radio systems. th Generation 6G communication system.

[0052] Figure 1This diagram illustrates a structural diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11 and a network-side device 12. In this context, terminal 11 can also be referred to as a terminal device or user equipment (UE). Terminal 11 can be a mobile phone, tablet computer, laptop computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR) / virtual reality (VR) device, robot, wearable device, vehicle-mounted device (VUE), pedestrian terminal (PUE), smart home (home devices with wireless communication functions, such as refrigerators, televisions, washing machines, or furniture), etc. Wearable devices include: smartwatches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, game consoles, etc. It should be noted that the specific type of terminal 11 is not limited in this application embodiment. Network-side device 12 can be a base station or a core network. The base station can be referred to as a node B, evolved node B, access point, base transceiver station (BTS), radio base station, radio transceiver, basic service set (BSS), extended service set (ESS), B node, evolved B node (eNB), home B node, home evolved B node, WLAN access point, WiFi node, transmitting and receiving point (TRP), or any other suitable term in the field, as long as the same technical effect is achieved. The base station is not limited to specific technical terms. It should be noted that in this application embodiment, only the base station in the NR system is used as an example, but the specific type of base station is not limited.

[0053] In discussing how to maintain the terminal's context information using network-side methods in this embodiment of the invention, the following technical solutions are considered:

[0054] The source node sends the candidate cell list and CHO execution conditions to the target node via SN state transition message or a new message. The target node then sends the information back to the source node via a handover report message.

[0055] in:

[0056] The source node sends the candidate cell list and CHO execution conditions when it receives the HOSUCCESS (handover successful) message from the target node, and the source node releases the terminal's context information after sending this information.

[0057] After the target node obtains the RLF report sent by the terminal, it sends the RLF report and CHO related information to the source node through an Xn (such as Handover Report) message. The source node adjusts the CHO configuration parameters and cell information based on this feedback.

[0058] In a specific scenario, such as scenario 1, the following steps may exist:

[0059] 1) The source node sends the CHO configuration to the terminal;

[0060] 2) If the terminal experiences an RLF in the source cell, it will either recover to the CHO candidate cell (scenario 1a) or rebuild in the third cell (scenario 1b);

[0061] 3) When the terminal recovers to a CHO candidate cell, the target cell will send an HO SUCCESS notification to the source node; if it is rebuilt to a third cell, the third cell will not send an HO SUCCESS notification to the source node because no handover process has occurred. Simultaneously, when the terminal establishes a connection with the target cell or the third cell, it notifies the network that an RLF report is stored on the terminal side.

[0062] 4) a. After receiving the HO SUCCESS, the source node sends the CHO-related information (CHO candidate cell list + execution conditions) to the target base station;

[0063] 4)b. The target cell / third cell may choose whether to obtain the RLF report from the terminal side based on the implementation. If the RLF report is obtained, the target cell will send the RLF report and the CHO related information obtained in 4)a to the source node.

[0064] 5) After receiving the data, the source node optimizes the CHO parameters.

[0065] As can be seen, the solutions discussed above only apply to scenario 1a. This is because the source base station can only know which base station the terminal is currently connected to if the CHO is successfully executed (when the UE successfully executes the CHO, i.e., switches to the target base station, the target base station sends a HO SUCCESS message to the source base station via the Xn interface, allowing the source base station to know which base station to send the CHO-related information to). However, in scenario 1b, where the terminal rebuilds in a third cell (neither the source cell nor the CHO candidate cell), the third cell does not send a HO SUCCESS message to the source base station (because this is a rebuild process, not a handover process), thus the source base station cannot know which base station to send the CHO-related information to. When the target base station sends an RLF report to the source base station, the source base station may have already released the UE context, making CHO parameter analysis impossible.

[0066] In addition, in step 3) of scenario 1, if the target base station does not obtain the RLF report in time, the target base station needs to keep storing the CHO-related information until the target base station obtains the RLF report; or if the RLF report on the terminal side is not obtained by the target base station in time and is overwritten due to a new RLF (or is deleted after exceeding the 48-hour storage time), the target base station will keep storing the CHO-related information, even if the corresponding RLF report can no longer be obtained by the target base station.

[0067] The method and apparatus for optimizing CHO configuration information provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0068] Therefore, the above solution has the following problems: a. The target network-side device does not know the type of the terminal's RLF report (e.g., it could be a CHO / HO (Hand Over) / DAPS (Dual Active Protocol Stack) handover / RLF without handover), and therefore does not obtain the RLF report in a timely manner; and b. In scenario 1b above, the source base station cannot know which base station to send CHO-related information to through HOSUCCESS.

[0069] Figure 2 This is a flowchart illustrating the method for optimizing CHO configuration information provided in an embodiment of this application. (Refer to...) Figure 2 This application provides a method for optimizing CHO configuration information, which may include:

[0070] Step 210: The source network-side device sends CHO configuration information to the terminal;

[0071] Step 220: The source network side device receives the first indication information, which includes an RLF report;

[0072] Step 230: The source network side device optimizes the CHO configuration information corresponding to the terminal according to the first instruction information.

[0073] It should be noted that the execution entity of the CHO configuration information optimization method provided in this application embodiment can be a source network-side device. The cell corresponding to the source network-side device can be the cell that the terminal connects to when it receives the CHO configuration.

[0074] In step 210, the source network device sends CHO configuration information to the terminal.

[0075] After receiving the CHO configuration information from the source network-side device, the terminal will execute the CHO according to the configuration information. If an RLF occurs in the cell during the execution of the CHO (including before and after executing the CHO according to the configuration information), the terminal will send an RLF report to the corresponding network-side device.

[0076] In step 220, the terminal can directly send the RLF report to the source network-side device, or it can send the RLF report to other network-side devices besides the source network-side device.

[0077] It should be noted that if the terminal sends an RLF report to other network-side devices during the execution of CHO, those other network-side devices will eventually also send the RLF report to the source network-side device through the first instruction information to ensure that the source network-side device can receive the RLF report.

[0078] In step 230, the source network side device can optimize the CHO configuration information corresponding to the terminal based on the first indication information received in step 220.

[0079] The CHO configuration information optimization method provided in this application embodiment enables the source network side device to successfully receive the RLF report and optimize the CHO configuration information corresponding to the terminal based on the RLF report, thereby updating the CHO configuration information and effectively improving the success rate of updating the CHO configuration information compared with the prior art.

[0080] In one embodiment, the source network-side device receiving the first indication information may include:

[0081] Scenario 1: When the terminal does not execute CHO and an RLF occurs in the first cell, the source network side device receives a first indication information sent by the target network side device. The first indication information includes a first RLF report.

[0082] For example, if a terminal receives CHO configuration information from the source network side device and, before observing a cell that meets the CHO execution conditions, experiences an RLF with the first cell, it may rebuild to a specific cell or perform RLF recovery in a CHO candidate cell.

[0083] In this scenario, the second cell includes a specific cell and a CHO candidate cell; the specific cell is any cell other than the first cell and the CHO candidate cell.

[0084] The first RLF report is sent by the terminal when an RLF occurs with the first cell. The terminal sends the first RLF report to the target network-side device when an RLF occurs with the first cell, and then the target network-side device sends the first RLF report to the source network-side device.

[0085] Scenario 2: When a terminal executes a CHO to switch from the first cell to the second cell, and after an RLF occurs in the second cell, it rebuilds to the third cell, the source network side device receives a first indication information sent by the target network side device. The first indication information includes a second RLF report.

[0086] For example, the terminal receives a CHO configuration from the source network device and successfully completes the CHO by selecting a second cell that meets the CHO execution conditions, but shortly thereafter an RLF occurs in the second cell and the cell is successfully rebuilt in the third cell.

[0087] The second RLF report is sent by the terminal when an RLF occurs with the second cell. The terminal sends the second RLF report to the target network-side device when an RLF occurs with the second cell, and then the target network-side device sends the second RLF report to the source network-side device.

[0088] Scenario 3: When a terminal executes a CHO to switch from the first cell to the second cell, and after an RLF occurs in the second cell, it rebuilds to the first cell, the source network side device receives a first indication information sent by the terminal, which includes a second RLF report.

[0089] For example, the terminal receives the CHO configuration from the source network side and successfully completes the CHO by selecting a second cell that meets the CHO execution conditions, but shortly thereafter an RLF occurs in the second cell and the cell is successfully rebuilt in the first cell.

[0090] Among them, the first cell is the cell corresponding to the source network side device, the second cell is the cell corresponding to the target network side device, and the third cell is the cell corresponding to the third network side device.

[0091] The third network-side device is a network-side device that is different from the source network-side device and the target network-side device.

[0092] The method for optimizing CHO configuration information provided in this application can further ensure the success rate of updating CHO configuration information by ensuring that the source network side device can receive the first instruction information in different scenarios.

[0093] It should be noted that for the CHO scenario in MDT (Minimization of Drive Tests) / SON (Self-organizing Network), it can be stipulated that the terminal needs to report some relevant information to the network-side device. This allows the network-side device to analyze whether the parameters of the configured CHO execution conditions and the list of CHO candidate cells are reasonable. Furthermore, the network-side device can optimize these parameters to improve the probability of successful terminal handover.

[0094] While the introduction of MDT / SON can help optimize network performance, it can also impact terminal power consumption and storage. Therefore, when optimizing CHO scenarios in standardized MDT / SON, it is necessary to minimize the impact on terminals, i.e., reduce the amount of information that terminals need to report to the network. Currently, information such as CHO execution conditions and CHO candidate cells is stored in the UE context of the base station. Therefore, this information is known to the network-side equipment in advance, meaning that the terminal does not need to report it when the network-side equipment has the UE context stored.

[0095] However, the terminal's context is not retained by the base station indefinitely. According to the legacy (later) procedure, when a terminal experiences an RLF in the current serving cell, or after a successful handover to the target cell, the network-side equipment will retain the terminal context for a period of time based on its implementation. That is, in cases where the protocol is not standardized, the base station needs to forcibly retain the terminal context. The specific time that the base station retains the terminal context also depends on the internal implementation of the base station.

[0096] Therefore, in cases where network-side devices cannot retain terminal context indefinitely, a solution is still needed for how network-side devices should handle terminal context.

[0097] In one embodiment, before the source network-side device receives the first indication information, it further includes:

[0098] The source network device receives the first notification message sent by the target network device.

[0099] The source network device sends CHO-related information to the target network device based on the first notification message;

[0100] The CHO-related information includes at least one of the following:

[0101] Terminal context information, including CHO configuration information corresponding to the terminal;

[0102] CHO configuration information corresponding to the terminal;

[0103] The CHO configuration information corresponding to the terminal includes at least one of the following:

[0104] The CHO execution conditions configured for the terminal by the source network-side device;

[0105] The source network-side device configures a list of CHO candidate cells for the terminal.

[0106] For example, when a terminal experiences an RLF in the first cell and switches to the second cell (a cell in the CHO candidate cell list) (i.e., scenario 1), the terminal will send an RLF report to the target network-side device (the network-side device corresponding to the second cell), and the target network-side device will send a first notification message, such as an Xn message or a HO SUCCESS (successful handover) message, to the source network-side device to notify which network-side device the source network-side device needs to send CHO-related information to.

[0107] For example, when a terminal switches from the first cell to the second cell and an RLF occurs in the second cell, and the terminal rebuilds to the third cell (a cell other than the source cell and the CHO candidate cell) (i.e., scenario 2), the terminal will send an RLF report to the target network-side device (the network-side device corresponding to the third cell). The target network-side device will then determine the ID of the source network-side device based on the information of the network-side device corresponding to the first cell to which the terminal was connected at the time of the RLF, as recorded in the RLF report. Based on this ID, the target network-side device will send a first notification message, such as an Xn message or a Failure Indication message, to the source network-side device to notify which network-side device the CHO-related information needs to be sent to.

[0108] Optionally, the source network device sends CHO-related information to the target network device based on the first notification message, which may include:

[0109] The source network device obtains the ID of the target network device based on the first notification message;

[0110] The source network device sends CHO-related information to the target network device based on the target network device's ID.

[0111] By identifying the ID of the target network device in the first notification message, the source network device can quickly and efficiently determine which network device to which the CHO-related information needs to be sent.

[0112] It should be noted that when a terminal switches to the second cell, due to the handover process, the target network-side device (the network-side device corresponding to the second cell) sends a HO SUCCESS message to the source network-side device. However, when the terminal re-establishes itself in the third cell, since no handover process occurs, the target network-side device (the network-side device corresponding to the third cell) cannot notify the source network-side device via the HO SUCCESS message. Therefore, in this situation, the source network-side device cannot determine which network-side device to send the CHO-related information to.

[0113] By receiving the first notification message from the target network-side device (the network-side device corresponding to the third cell) when the terminal reconnects with the first cell via RLF and rebuilds to the third cell, the source network-side device can determine which network-side device to send the CHO-related information to based on the first notification message, thereby ensuring the updating of the CHO configuration information and improving the success rate of updating the CHO configuration information.

[0114] In one embodiment, the first indication information further includes at least one of the following:

[0115] CHO related information;

[0116] The target network-side device determines the measurement information corresponding to the CHO candidate cell from the neighbor cell measurement information in the RLF report based on the CHO candidate cell list.

[0117] The target network-side device uses the CHO candidate cell list to mark the neighboring cells of the CHO candidate cells in the RLF report.

[0118] It should be noted that when the source network device receives an RLF report, if it has CHO-related information stored locally, the source network device will directly optimize the CHO configuration information corresponding to the terminal in the CHO-related information based on the RLF report.

[0119] In the case where the source network device sends CHO-related information to the target network device, the source network device needs to receive an RLF report and at least one of the following from the target network device in order to optimize the CHO configuration information:

[0120] CHO related information;

[0121] The target network-side device determines the measurement information corresponding to the CHO candidate cell from the neighbor cell measurement information in the RLF report based on the CHO candidate cell list.

[0122] The target network-side device uses the CHO candidate cell list to mark the neighboring cells of the CHO candidate cells in the RLF report.

[0123] For example, the target network-side device can send an RLF report and at least one of the aforementioned information to the source network-side device through a first indication message, such as an Xn message like a HandoverReport.

[0124] After receiving the first indication information sent by the target network side device, the source network side device can optimize the CHO configuration information corresponding to the terminal based on the first indication information.

[0125] The optimization method for CHO configuration information provided in this application embodiment, by receiving the first indication information including the RLF report and CHO-related information returned by the target network side device when the source network side device sends CHO-related information to the target network side device, can ensure that the CHO configuration information can still be updated in this case, thereby improving the success rate of updating the CHO configuration information.

[0126] Figure 3 This is a flowchart illustrating the method for processing CHO configuration information provided in an embodiment of this application. (Refer to...) Figure 3 This application provides a method for processing CHO configuration information, which may include:

[0127] Step 310: The target network-side device receives the RRC (Radio Resource Control) message sent by the terminal;

[0128] Step 320: The target network-side device obtains a Radio Link Failure (RLF) report based on the RRC message;

[0129] Step 330: The target network-side device sends the first indication information to the source network-side device;

[0130] The first indication information is used to indicate the source network side device to optimize the CHO configuration information corresponding to the terminal.

[0131] It should be noted that the execution entity of the CHO configuration information processing method provided in this application embodiment can be a target network-side device. The cell corresponding to the target network-side device can be any of the following:

[0132] The first target cell is the cell in which the terminal maintains connection after cell handover or RLF recovery, and the target cell is a cell in the CHO candidate cells;

[0133] The second target cell is any cell other than the cell corresponding to the source network side device and the first target cell.

[0134] In step 310, the target network-side device can receive an RRC message sent by the terminal, which is used to instruct the target network-side device to obtain an RLF report.

[0135] In step 320, the target network-side device can obtain an RLF report based on the RRC message.

[0136] The RRC message may include at least one of the RLF indication information and the RLF report.

[0137] When the RRC message includes RLF indication information, the target network-side device needs to initiate a process to obtain the RLF report as soon as possible.

[0138] When an RRC message includes an RLF report, the target network-side device can directly obtain the RLF report.

[0139] After receiving the RLF report, the target network-side device can send the first indication information to the source network-side device in step 330.

[0140] The first indication information is used to instruct the source network side device to optimize the CHO configuration information corresponding to the terminal, and includes an RLF report.

[0141] The CHO configuration information processing method provided in this application embodiment enables the target network-side device to send a first indication information to the source network-side device after obtaining an RLF report, instructing the source network-side device to optimize the CHO configuration information corresponding to the terminal. This ensures that when an RLF occurs during the CHO process, the terminal can obtain the updated CHO configuration information, thereby effectively improving the success rate of updating CHO configuration information compared to the prior art.

[0142] In one embodiment, the RRC message includes at least one of an RLF indication message and an RLF report;

[0143] The target network-side device receives an RLF report based on the RRC message, which may include:

[0144] When the RRC message includes an RLF report, the target network-side device receives the RLF report;

[0145] If the RRC message does not include an RLF report, the target network-side device sends a second indication message to the terminal based on the RLF indication information. The second indication message is used to instruct the terminal to send an RLF report to the target network-side device.

[0146] The target network-side device receives the RLF report;

[0147] Among them, the RLF indication information indicates that the RLF report is related to the CHO.

[0148] Optionally, when the RRC message directly carries the RLF report, the target network-side device does not need to send any request information to the terminal, but can directly obtain the RLF report from the RRC message sent by the terminal, thereby reducing the number of interactions and improving the efficiency of obtaining the RLF report.

[0149] When an RRC message includes an RLF indication, this RLF indication can be implemented by a first indication field. The presence of the first indication field indicates that the RLF report is related to a CHO (Content on Hand Over). Conversely, the absence of the first indication field indicates that the RLF report is unrelated to a CHO; for example, the RLF report could be related to DAPS (Dual Active Protocol Stack) switching, HO (Hand Over), or a regular RLF.

[0150] Optionally, when the RRC message sent by the terminal to the target network device carries a first indication field, and the first indication field indicates that the currently existing RLF report is an event related to CHO, the target network device needs to initiate a process to obtain the RLF report from the terminal as early as possible, that is, to make a request using the second indication information. The second indication information can be, for example, a UEInformationRequest message.

[0151] It should be noted that, in order to minimize the time spent by the source network side device in maintaining the terminal context, the target network side device needs to obtain the RLF report related to the CHO as early as possible.

[0152] If the target network device does not obtain the RLF report early (e.g., due to overload of the wireless access network), it means that the network does not care about the RLF report, and the CHO information corresponding to the RLF report may be released by the source network device after timeout.

[0153] Therefore, the CHO configuration information processing method provided in this application embodiment enables the target network-side device to immediately initiate the process of obtaining the RLF report when the RRC message includes RLF indication information. This allows the RLF report to be obtained as early as possible, thereby avoiding the timeout release of CHO information and ensuring the smooth update of CHO configuration information.

[0154] In one embodiment, an RLF report related to a CHO may include at least one of the following:

[0155] The RLF report includes parameters related to CHO;

[0156] The RLF report is generated after the terminal receives the CHO configuration information.

[0157] It should be noted that when a terminal executes a CHO, the RLF report will include parameters related to that CHO. If a CHO is not executed, the RLF report will not include CHO-related parameters. However, if the RLF report is generated after the source network device configures the terminal's CHO, it will still be considered related to the CHO.

[0158] In one embodiment, step 330 may include:

[0159] The target network device sends an RLF report to the source network device.

[0160] It should be noted that when the source network device has CHO-related information stored locally, the target network device only needs to send an RLF report to the source network device so that the source network device can optimize the CHO configuration information corresponding to the terminal based on the RLF report and the CHO-related information.

[0161] In one embodiment, after the target network-side device obtains the RLF report based on the RRC message, the method for processing CHO configuration information provided in this application embodiment may further include:

[0162] According to the RLF report, the target network-side device sends a first notification message to the source network-side device.

[0163] The target network-side device receives CHO-related information fed back by the source network-side device, and the CHO-related information corresponds to the terminal.

[0164] For example, when a terminal experiences an RLF in the first cell and switches to the second cell (a cell in the CHO candidate cell list) (i.e., scenario 1), the terminal will send an RLF report to the target network-side device (the network-side device corresponding to the second cell), and the target network-side device will send a first notification message, such as an Xn message or a HO SUCCESS (successful handover) message, to the source network-side device to notify which network-side device the source network-side device needs to send CHO-related information to.

[0165] Once the source network device determines that it needs to send CHO-related information to the target network device, it will send the CHO-related information to the target network device. After receiving the CHO-related information, the target network device will temporarily store it.

[0166] For example, when a terminal switches from the first cell to the second cell and an RLF occurs in the second cell, and the terminal rebuilds to the third cell (a cell other than the source cell and the CHO candidate cell) (i.e., scenario 2), the terminal will send an RLF report to the target network-side device (the network-side device corresponding to the third cell). The target network-side device will then determine the ID of the source network-side device based on the information of the network-side device corresponding to the first cell to which the terminal was connected at the time of the RLF, as recorded in the RLF report. Based on this ID, the target network-side device will send a first notification message, such as an Xn message or a Failure Indication message, to the source network-side device to notify which network-side device the CHO-related information needs to be sent to.

[0167] Once the source network device determines that it needs to send CHO-related information to the target network device, it will send the CHO-related information to the target network device. After receiving the CHO-related information, the target network device will temporarily store it.

[0168] It should be noted that when a terminal switches to the second cell, due to the handover process, the target network device sends a HO SUCCESS message to the source network device. However, when the terminal re-establishes itself in the third cell, since no handover process occurs, the target network device cannot notify the source network device via the HO SUCCESS message. Therefore, in this situation, the source network device cannot determine which network device to send the CHO-related information to.

[0169] By sending a first notification message to the source network device when the terminal experiences an RLF in the first cell and rebuilds to the third cell (i.e., scenario 1), the target network device (the network device corresponding to the third cell) can determine which network device to send the CHO-related information to based on the first notification message, thereby ensuring the success rate of CHO configuration information updates.

[0170] In one embodiment, sending first indication information from the target network-side device to the source network-side device may include:

[0171] The target network-side device sends a first indication message to the source network-side device. The first indication message includes an RLF report and at least one of the following:

[0172] CHO related information;

[0173] The target network-side device determines the measurement information corresponding to the CHO candidate cell from the neighbor cell measurement information in the RLF report based on the CHO candidate cell list.

[0174] The target network-side device uses the CHO candidate cell list to mark the neighboring cells of the CHO candidate cells in the RLF report.

[0175] It should be noted that, in the case where the source network device sends CHO-related information to the target network device, the source network device needs to receive an RLF report and at least one of the following from the target network device in order to optimize the CHO configuration information:

[0176] CHO related information;

[0177] The target network-side device determines the measurement information corresponding to the CHO candidate cell from the neighbor cell measurement information in the RLF report based on the CHO candidate cell list.

[0178] The target network-side device uses the CHO candidate cell list to mark the neighboring cells of the CHO candidate cells in the RLF report.

[0179] For example, the target network-side device can send an RLF report and at least one of the aforementioned information to the source network-side device through a first indication message, such as an Xn message like a HandoverReport.

[0180] After receiving the first indication information sent by the target network side device, the source network side device can optimize the CHO configuration information corresponding to the terminal based on the first indication information.

[0181] The CHO configuration information processing method provided in this application embodiment ensures that CHO configuration information can still be updated in this case, thereby improving the success rate of updating CHO configuration information, by enabling the target network side device to return first indication information including RLF report and CHO related information to the source network side device when the source network side device sends CHO related information to the target network side device.

[0182] In one embodiment, the first indication information can be any of the following:

[0183] Failure Indication message;

[0184] Handover Report.

[0185] Figure 4 This is a flowchart illustrating the optimized triggering method for CHO configuration information provided in an embodiment of this application. (Refer to...) Figure 4 This application also provides an optimized triggering method for CHO configuration information, which may include:

[0186] Step 410: The terminal receives CHO configuration information sent by the source network side device;

[0187] Step 420: When the terminal experiences an RLF, the terminal sends an RRC message to the target network-side device.

[0188] The RRC message includes at least one of an RLF indication message and an RLF report, which are used to indicate the optimization of CHO configuration information.

[0189] It should be noted that the execution subject of the optimized triggering method for CHO configuration information provided in this application embodiment can be a terminal, such as a mobile phone or computer.

[0190] In step 410, after receiving the CHO configuration information sent by the source network side device, the terminal will perform the CHO operation according to the CHO configuration information.

[0191] In step 420, when an RLF occurs during the execution of a CHO, the terminal sends an RRC message to the target network-side device. The RRC includes at least one of the RLF indication information and the RLF report.

[0192] Optionally, when the RRC message directly carries the RLF report, the target network-side device does not need to send any request information to the terminal, but can directly obtain the RLF report from the RRC message sent by the terminal, thereby reducing the number of interactions and improving the efficiency of obtaining the RLF report.

[0193] When an RRC message includes an RLF indication, this RLF indication can be implemented by a first indication field. The presence of the first indication field indicates that the RLF report is related to a CHO (Content on Hand Over). Conversely, the absence of the first indication field indicates that the RLF report is unrelated to a CHO; for example, the RLF report could be related to DAPS (Dual Active Protocol Stack) switching, HO (Hand Over), or a regular RLF.

[0194] Optionally, when the RRC message sent by the terminal to the target network device carries a first indication field, and the first indication field indicates that the currently existing RLF report is an event related to CHO, the target network device needs to initiate a process to obtain the RLF report from the terminal as early as possible, that is, to make a request using the second indication information. The second indication information can be, for example, a UEInformationRequest message.

[0195] It should be noted that, in order to minimize the time spent by the source network side device in maintaining the terminal context, the target network side device needs to obtain the RLF report related to the CHO as early as possible.

[0196] If the target network device does not obtain the RLF report early (e.g., due to overload of the wireless access network), it means that the network does not care about the RLF report, and the CHO information corresponding to the RLF report may be released by the source network device after timeout.

[0197] Therefore, the optimized triggering method for CHO configuration information provided in this application embodiment enables the target network-side device to immediately initiate the process of obtaining the RLF report when the RRC message includes RLF indication information. This allows the RLF report to be obtained as early as possible, thereby avoiding the timeout release of CHO information and ensuring the smooth update of CHO configuration information.

[0198] After the target network device receives the RLF report through the RRC message sent by the terminal, it will trigger the source network device to optimize the CHO configuration information.

[0199] The CHO configuration information optimization triggering method provided in this application embodiment, by triggering the source network side device to optimize the CHO configuration information corresponding to the terminal after obtaining the RLF report, can ensure that when the terminal encounters an RLF during the CHO process, it can obtain the updated CHO configuration information, thereby effectively improving the success rate of updating CHO configuration information compared with the prior art.

[0200] In one embodiment, step 420 may include:

[0201] Scenario 1: If an RLF occurs with the first cell before the terminal executes CHO, and the terminal rebuilds to the second cell or recovers from the RLF in the third cell, the terminal sends an RRC message to the target network device.

[0202] For example, if a terminal receives CHO configuration information from the source network side device and, before observing a cell that meets the CHO execution conditions, experiences an RLF with the first cell, it may rebuild to a specific cell or perform RLF recovery in a CHO candidate cell.

[0203] In this scenario, the second cell includes a specific cell and a CHO candidate cell; the specific cell is any cell other than the first cell and the CHO candidate cell.

[0204] In this scenario, the RRC message includes a first RLF report, which is generated by the terminal when an RLF occurs with the first cell. The terminal sends the first RLF report to the target network-side device via an RRC message when an RLF occurs with the first cell. Subsequently, the target network-side device sends the first RLF report to the source network-side device.

[0205] Scenario 2: When the terminal executes a CHO to switch from the first cell to the second cell, and after an RLF occurs in the second cell, it rebuilds to the third cell, the terminal sends an RRC message to the target network device.

[0206] For example, the terminal receives a CHO configuration from the source network device and successfully completes the CHO by selecting a second cell that meets the CHO execution conditions, but shortly thereafter an RLF occurs in the second cell and the terminal is successfully rebuilt in the third cell.

[0207] The second RLF report is generated by the terminal when an RLF occurs with the second cell. The terminal sends the second RLF report to the target network-side device via an RRC message when an RLF occurs with the second cell. The target network-side device then forwards the second RLF report to the source network-side device.

[0208] Scenario 3: When the terminal executes a CHO to switch from the first cell to the second cell, and after an RLF occurs in the second cell, it is rebuilt back to the first cell, the terminal sends an RRC message to the source network side device.

[0209] For example, the terminal receives the CHO configuration from the source network side and successfully completes the CHO by selecting a second cell that meets the CHO execution conditions, but shortly thereafter an RLF occurs in the second cell and the cell is successfully rebuilt in the first cell.

[0210] Among them, the first cell is the cell corresponding to the source network side device, the second cell is the cell corresponding to the target network side device, and the third cell is the cell corresponding to the third network side device.

[0211] The optimization triggering method for CHO configuration information provided in this application embodiment can further ensure the success rate of updating CHO configuration information by ensuring that the source network side device can be triggered to optimize CHO configuration information in different scenarios.

[0212] In one embodiment, if the RRC message includes RLF indication information, the RLF indication information indicates that the RLF is associated with the CHO.

[0213] In one embodiment, an RLF report related to a CHO may include at least one of the following:

[0214] The RLF report includes parameters related to CHO;

[0215] The RLF report is generated after the terminal receives the CHO configuration information.

[0216] It should be noted that when a terminal executes a CHO, the RLF report will include parameters related to that CHO. However, if a CHO is not executed, the RLF report will not include CHO-related parameters. Nevertheless, the RLF report is generated after the source network device configures the terminal's CHO; therefore, in this case, the RLF report is still considered related to the CHO.

[0217] In one embodiment, an RRC message may include at least one of the following:

[0218] The message "RRCReconfigurationComplete" indicates that the RRC reconfiguration is complete.

[0219] The message is RRCSetupComplete (RRC setup complete).

[0220] RRCReestablishmentComplete message;

[0221] RRCResumeComplete message (RRC recovery complete);

[0222] UEInformationResponse (Terminal Information Reply) message.

[0223] In one embodiment, the first indication field included in the RRC message can be implemented using the following scheme:

[0224] Solution (1): Extend the RRCSetupComplete message by including the first indicator field rlf-CHO-r17 in RRCSetupComplete-v1710-IEs.

[0225] Option (2): Extend UE-MeasurementsAvailable to include the first indication field rlf-CHO-r17.

[0226] In both Scheme (I) and Scheme (II):

[0227] When rlf-CHO-r17 exists, it indicates that there is an RLF event related to CHO on the terminal side;

[0228] Optionally, rlf-CHO-r17 is coupled with rlf-InfoAvailable-r16 in UE-MeasurementsAvailable. That is, the terminal needs to set rlf-InfoAvailable-r16 to exist before it can further set whether rlf-CHO-r17 exists. When the terminal sets rlf-InfoAvailable-r16 to not exist, then rlf-CHO-r17 cannot be included.

[0229] Optionally, rlf-CHO-r17 and rlf-InfoAvailable-r16 in UE-MeasurementsAvailable are mutually exclusive. That is, when rlf-InfoAvailable-r16 exists, it indicates that there is an RLF report unrelated to CHO on the terminal side, while when rlf-CHO-r17 exists, it indicates that there is an RLF event related to CHO on the terminal side. The terminal can only set one of the fields in rlf-CHO-r17 and rlf-InfoAvailable-r16 to "exist".

[0230] To facilitate understanding of the technical solutions provided in the embodiments of this application, the following examples are provided:

[0231] Example 1 (Source network-side device-led maintenance CHO related information):

[0232] Step 1: The source network side device sends CHO configuration information to the terminal;

[0233] Step 2: The terminal generates an RLF in the first cell and rebuilds to the third cell. The terminal sends an RRC message to the target network-side device. The RRC message carries a first indication field, indicating that there is an RLF report related to CHO on the current terminal side.

[0234] Step 3: Upon receiving the first indication field, the target network-side device immediately sends a UEInformationRequest message to the terminal, requesting the terminal to send an RLF report;

[0235] Step 4: The terminal receives the request for RLF reporting instruction in the UEInformationRequest, carries the RLF report in the UEInformationResponse, and sends it to the target network-side device;

[0236] Step 5: The target network device sends the RLF report to the source network device via the Xn message Failure Indication;

[0237] Step 6: After receiving the message carrying the RLF report, the source network side device optimizes the CHO configuration information by combining it with the local CHO-related information.

[0238] Example 2 (The target network-side device is responsible for maintaining CHO-related information; the target network-side device is the network-side device corresponding to the CHO candidate cell):

[0239] Step 1: The source network side device sends CHO configuration information to the terminal;

[0240] Step 2: The terminal generates an RLF in the first cell and recovers to the second cell (CHO candidate cell). The terminal sends an RRC message to the target network-side device. The RRC message carries a first indication field, indicating that there is an RLF report related to CHO on the current terminal side.

[0241] Step 3: After the target network-side device receives the first indication field:

[0242] a) Immediately send a UEInformationRequest message to the terminal, requesting the terminal to send an RLF report;

[0243] b) Generate an Xn message, such as HO SUCCESS, and send it to the source network device;

[0244] Step 4: The terminal receives the request RLF reporting instruction in the UEInformationRequest, carries the RLF report in the UEInformationResponse, and sends it to the target network-side device; after receiving HOSUCCESS, the source network-side device sends the CHO-related information to the target network-side device.

[0245] Step 5: The target network device sends the RLF report and the received CHO-related information to the source network device via Xn messages, such as a handover report.

[0246] Step 6: After receiving the handover report, the source network side device optimizes the CHO configuration information.

[0247] Example 3 (The target network-side device is in charge of maintaining CHO-related information; the target network-side device is the network-side device corresponding to the third cell):

[0248] Step 1: The source network side device sends CHO configuration information to the terminal;

[0249] Step 2: The terminal generates an RLF in the first cell and rebuilds to the third cell. The terminal sends an RRC message to the target network-side device. The RRC message carries a first indication field, indicating that there is an RLF report related to CHO on the current terminal side.

[0250] Step 3: After receiving the first indication field, the target network-side device immediately sends a UEInformationRequest message to the terminal, requesting the terminal to send an RLF report;

[0251] Step 4: The terminal receives the request for RLF reporting instruction in the UEInformationRequest, carries the RLF report in the UEInformationResponse, and sends it to the target network-side device;

[0252] Step 5: The target network-side device generates an Xn message, such as Failure Indication, based on the cell ID to which the terminal was connected when the RLF occurred, and sends it to the source network-side device (i.e., the network-side device indicated by the cell ID).

[0253] Step 6: After receiving the Failure Indication, the source network device sends the CHO-related information to the target network device.

[0254] Step 7: The target network device sends the RLF report and the received CHO-related information to the source network device via an Xn message, such as a handover report.

[0255] Step 8: After receiving the handover report, the source network side device optimizes the CHO configuration information.

[0256] It should be noted that the CHO configuration information optimization method provided in this application embodiment can be executed by a CHO configuration information optimization device, or by a control module within that CHO configuration information optimization device for executing the CHO configuration information optimization method. This application embodiment uses the CHO configuration information optimization device executing the CHO configuration information optimization method as an example to illustrate the CHO configuration information optimization device provided in this application embodiment.

[0257] Figure 5 A schematic diagram of the structure of the CHO configuration information optimization device provided in this application embodiment. (Refer to...) Figure 5 This application provides an apparatus for optimizing CHO configuration information, which may include:

[0258] Configuration module 510 is used to send condition switching CHO configuration information to the terminal;

[0259] The receiving module 520 is configured to receive first indication information, the first indication information including a radio link failure (RLF) report;

[0260] The optimization module 530 is used to optimize the CHO configuration information corresponding to the terminal according to the first indication information.

[0261] The CHO configuration information optimization device provided in this application embodiment enables the source network side device to successfully receive the RLF report and optimize the CHO configuration information corresponding to the terminal based on the RLF report, thereby updating the CHO configuration information and effectively improving the success rate of updating the CHO configuration information compared with the prior art.

[0262] In one embodiment, the receiving module 520 is specifically used for:

[0263] In the case where the terminal does not perform CHO and an RLF occurs in the first cell, a first indication information is received from the target network-side device, the first indication information including a first RLF report;

[0264] When the terminal performs a CHO to switch from the first cell to the second cell, and then rebuilds to the third cell after an RLF occurs in the second cell, it receives a first indication message sent by the target network-side device, the first indication message including a second RLF report;

[0265] When the terminal performs a CHO to switch from the first cell to the second cell, and after a radio link failure (RLF) occurs in the second cell, it re-establishes the connection to the first cell, the terminal receives a first indication message, which includes a second RLF report.

[0266] Wherein, the first RLF report is sent by the terminal when an RLF occurs in the first cell; the second RLF report is sent by the terminal when an RLF occurs in the second cell; the first cell is the cell corresponding to the source network-side device, the second cell is the cell corresponding to the target network-side device, and the third cell is the cell corresponding to the third network-side device.

[0267] In one embodiment, before receiving the first indication information, the receiving module 520 is further configured to:

[0268] Receive the first notification message sent by the target network-side device;

[0269] Based on the first notification message, send CHO-related information to the target network-side device;

[0270] The CHO-related information includes at least one of the following:

[0271] Terminal context information, including CHO configuration information corresponding to the terminal;

[0272] CHO configuration information corresponding to the terminal;

[0273] The CHO configuration information corresponding to the terminal includes at least one of the following:

[0274] The CHO execution conditions configured for the terminal by the source network-side device;

[0275] The source network-side device configures a list of CHO candidate cells for the terminal.

[0276] In one embodiment, the receiving module 520 is specifically used for:

[0277] Based on the first notification message, determine the ID of the target network-side device;

[0278] Based on the ID of the target network-side device, send the CHO-related information to the target network-side device.

[0279] In one embodiment, the first notification message is a successful HO SUCCESS message; or...

[0280] The first notification message is sent by the target network-side device to the receiving module after determining the ID of the source network-side device based on the RLF report.

[0281] In one embodiment, the first indication information further includes at least one of the following:

[0282] The CHO-related information;

[0283] The target network-side device determines the measurement information corresponding to the CHO candidate cell from the neighbor cell measurement information in the RLF report based on the CHO candidate cell list.

[0284] The target network-side device uses the CHO candidate cell list to mark the neighboring cells of the CHO candidate cells in the RLF report.

[0285] The optimization device for CHO configuration information in this application embodiment can be a device, a device or electronic device with an operating system, or a component, integrated circuit, or chip in a terminal. This device or electronic device can be a mobile terminal or a non-mobile terminal. For example, a mobile terminal can include, but is not limited to, the types of terminals 11 listed above, while a non-mobile terminal can be a server, network attached storage (NAS), personal computer (PC), television (TV), ATM, or self-service machine, etc. This application embodiment does not specifically limit the specific type of terminal.

[0286] The CHO configuration information optimization device provided in this application embodiment can achieve... Figure 2 The various processes implemented in the method embodiment achieve the same technical effect, and will not be described again here to avoid repetition.

[0287] It should be noted that the CHO configuration information processing method provided in this application embodiment can be executed by a CHO configuration information processing device, or by a control module within that CHO configuration information processing device for executing the CHO configuration information processing method. This application embodiment uses the execution of the CHO configuration information processing method by a CHO configuration information processing device as an example to illustrate the CHO configuration information processing device provided in this application embodiment.

[0288] Figure 6 A schematic diagram of the structure of the CHO configuration information processing device provided in this application embodiment. (Refer to...) Figure 6 This application provides a CHO configuration information processing apparatus, which may include:

[0289] The receiving module 610 is used to receive Radio Resource Control (RRC) messages sent by the terminal;

[0290] The acquisition module 620 is used to obtain a Radio Link Failure (RLF) report based on the RRC message;

[0291] The sending module 630 is used to send first indication information to the source network side device;

[0292] The first indication information is used to instruct the source network-side device to optimize the conditional switching CHO configuration information corresponding to the terminal.

[0293] The CHO configuration information processing device provided in this application embodiment enables the target network-side device to send a first indication information to the source network-side device after obtaining an RLF report, instructing the source network-side device to optimize the CHO configuration information corresponding to the terminal. This ensures that when an RLF occurs during the CHO process, the terminal can obtain the updated CHO configuration information, thereby effectively improving the success rate of updating CHO configuration information compared to the prior art.

[0294] In one embodiment, the RRC message includes at least one of the RLF indication information and the RLF report;

[0295] The acquisition module 620 is specifically used for:

[0296] If the RRC message includes the RLF report, the RLF report is obtained;

[0297] If the RRC message does not include the RLF report, a second indication message is sent to the terminal according to the RLF indication information. The second indication message is used to instruct the terminal to send the RLF report to the target network-side device.

[0298] Receive the RLF report;

[0299] The RLF indication information indicates that the RLF report is related to the CHO.

[0300] In one embodiment, the RLF report is related to the CHO and includes at least one of the following:

[0301] The RLF report includes parameters related to CHO;

[0302] The RLF report is generated after the terminal receives the CHO configuration information.

[0303] In one embodiment, the sending module 630 is specifically used for:

[0304] Send the RLF report to the source network-side device.

[0305] In one embodiment, the sending module 630 is further configured to:

[0306] Based on the RLF report, a first notification message is sent to the source network-side device;

[0307] The terminal receives CHO-related information fed back by the source network-side device, and the CHO-related information corresponds to the terminal.

[0308] In one embodiment, the sending module 630 is specifically used for:

[0309] Send the first indication information to the source network-side device, the first indication information including the RLF report, and at least one of the following:

[0310] The CHO-related information;

[0311] The CHO configuration information processing device determines the measurement information corresponding to the CHO candidate cell from the neighbor cell measurement information in the RLF report based on the CHO candidate cell list.

[0312] The CHO configuration information processing device marks the neighboring cells of the CHO candidate cells in the RLF report according to the CHO candidate cell list.

[0313] In one embodiment, the first indication information is any one of the following:

[0314] Failure Indication message;

[0315] Switch to Handover Report.

[0316] The processing device for CHO configuration information in this application embodiment can be a device, a device or electronic device with an operating system, or a component, integrated circuit, or chip in a terminal. The device or electronic device can be a mobile terminal or a non-mobile terminal. For example, a mobile terminal can include, but is not limited to, the types of terminals 11 listed above, while a non-mobile terminal can be a server, network attached storage (NAS), personal computer (PC), television (TV), ATM, or self-service machine, etc. This application embodiment does not specifically limit the type of terminal.

[0317] The CHO configuration information processing device provided in this application embodiment can achieve... Figure 3 The various processes implemented in the method embodiment achieve the same technical effect, and will not be described again here to avoid repetition.

[0318] It should be noted that the execution entity of the CHO configuration information optimization triggering method provided in this application embodiment can be a CHO configuration information optimization triggering device, or a control module in the CHO configuration information optimization triggering device for executing the CHO configuration information optimization triggering method. This application embodiment uses the CHO configuration information optimization triggering device executing the CHO configuration information optimization triggering method as an example to illustrate the CHO configuration information optimization triggering device provided in this application embodiment.

[0319] Figure 7 A schematic diagram of the structure of the CHO configuration information optimization triggering device provided in this embodiment of the application. (Refer to...) Figure 7 This application provides an optimization triggering device for CHO configuration information, which may include:

[0320] The receiving module 710 is used to receive conditional switching (CHO) configuration information sent by the source network side device;

[0321] The sending module 720 is used to send a Radio Resource Control (RRC) message to the target network-side device when a radio link failure (RLF) occurs at the terminal.

[0322] The RRC message includes at least one of RLF indication information and RLF report, which are used to indicate the optimization of CHO configuration information.

[0323] The CHO configuration information optimization triggering device provided in this application embodiment optimizes the CHO configuration information corresponding to the terminal by triggering the source network side device to optimize the CHO configuration information after obtaining the RLF report. This ensures that when the terminal encounters an RLF during the CHO process, it can obtain the updated CHO configuration information, thereby effectively improving the success rate of updating CHO configuration information compared with the prior art.

[0324] In one embodiment, the sending module 720 is specifically used for:

[0325] If an RLF occurs with the first cell before the terminal executes a CHO, and the network is rebuilt to the second cell or recovers from an RLF in the third cell, an RRC message is sent to the target network-side device.

[0326] When the terminal performs a CHO to switch from the first cell to the second cell, and then rebuilds to the third cell after an RLF occurs in the second cell, an RRC message is sent to the target network-side device.

[0327] When the terminal performs a CHO to switch from the first cell to the second cell, and then rebuilds to the first cell after an RLF occurs in the second cell, an RRC message is sent to the source network side device.

[0328] The first cell is the cell corresponding to the source network-side device, the second cell is the cell corresponding to the target network-side device, and the third cell is the cell corresponding to the third network-side device.

[0329] In one embodiment, if the RRC message includes RLF indication information, the RLF indication information indicates that the RLF is associated with a CHO.

[0330] In one embodiment, the RLF report is related to the CHO and includes at least one of the following:

[0331] The RLF report includes parameters related to CHO;

[0332] The RLF report is generated after the terminal receives the CHO configuration information.

[0333] In one embodiment, the RRC message includes at least one of the following:

[0334] RRC reconfiguration complete message: RRCReconfigurationComplete;

[0335] RRC setup completes with the RRCSetupComplete message;

[0336] RRC Reestablishment Complete message;

[0337] RRC recovery completes with the RRCResumeComplete message;

[0338] The terminal replies with a UEInformationResponse message.

[0339] The optimization triggering device for CHO configuration information in this application embodiment can be a device, a device or electronic device with an operating system, or a component, integrated circuit, or chip in a terminal. This device or electronic device can be a mobile terminal or a non-mobile terminal. For example, a mobile terminal can include, but is not limited to, the types of terminals 11 listed above, while a non-mobile terminal can be a server, network attached storage (NAS), personal computer (PC), television (TV), ATM, or self-service machine, etc. This application embodiment does not impose specific limitations.

[0340] The optimization triggering device for CHO configuration information provided in this application embodiment can achieve... Figure 4 The various processes implemented in the method embodiment achieve the same technical effect, and will not be described again here to avoid repetition.

[0341] Optional, such as Figure 8 As shown, this application embodiment also provides a communication device 800, including a processor 801, a memory 802, and a program or instructions stored in the memory 802 and executable on the processor 801. For example, when the communication device 800 is a terminal, the program or instructions executed by the processor 801 implement the various processes of the above-described terminal-side method embodiments and achieve the same technical effect. When the communication device 800 is a network-side device, the program or instructions executed by the processor 801 implement the various processes of the above-described network-side method embodiments and achieve the same technical effect. To avoid repetition, further details are omitted here.

[0342] This application also provides a terminal, including a processor and a communication interface. The communication interface is used to receive Conditional Handover (CHO) configuration information sent by the source network-side device; when the terminal experiences a Radio Link Failure (RLF), it sends a Radio Resource Control (RRC) message to the target network-side device. This terminal embodiment corresponds to the above-described terminal-side method embodiment. All implementation processes and methods of the above method embodiments can be applied to this terminal embodiment and achieve the same technical effect. Specifically, Figure 9 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.

[0343] The terminal 900 includes, but is not limited to, at least some of the following components: radio frequency unit 901, network module 902, audio output unit 903, input unit 904, sensor 905, display unit 906, user input unit 907, interface unit 908, memory 909, and processor 910.

[0344] Those skilled in the art will understand that the terminal 900 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 910 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 9 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0345] It should be understood that, in this embodiment, the input unit 904 may include a graphics processing unit (GPU) 9041 and a microphone 9042. The GPU 9041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 906 may include a display panel 9061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 907 includes a touch panel 9071 and other input devices 9072. The touch panel 9071 is also called a touch screen. The touch panel 9071 may include a touch detection device and a touch controller. Other input devices 9072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0346] In this embodiment, the radio frequency unit 901 receives downlink data from the network-side device and processes it for the processor 910; additionally, it sends uplink data to the network-side device. Typically, the radio frequency unit 901 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc.

[0347] The memory 909 can be used to store software programs or instructions and various data. The memory 909 may primarily include a program or instruction storage area and a data storage area. The program or instruction storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 909 may include high-speed random access memory and non-transient memory, which may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. For example, at least one disk storage device, flash memory device, or other non-transient solid-state storage device.

[0348] Processor 910 may include one or more processing units; optionally, processor 910 may integrate an application processor and a modem processor, wherein the application processor mainly handles the operating system, user interface, and applications or instructions, and the modem processor mainly handles wireless communication, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 910.

[0349] The radio frequency unit 901 is used to receive conditional handover (CHO) configuration information sent by the source network-side device; when a radio link failure (RLF) occurs at the terminal, it sends a radio resource control (RRC) message to the target network-side device; wherein the RRC message includes at least one of RLF indication information and an RLF report, the RLF indication information and the RLF report being used to indicate optimized CHO configuration information.

[0350] The terminal provided in this application embodiment can ensure that when an RLF occurs during the CHO process, the terminal can obtain the updated CHO configuration information by triggering the source network side device to optimize the CHO configuration information corresponding to the terminal after obtaining the RLF report. This effectively improves the success rate of updating the CHO configuration information compared with the prior art.

[0351] Optional, the radio frequency unit 901 is specifically used for:

[0352] If an RLF occurs with the first cell before the terminal executes a CHO, and the network is rebuilt to the second cell or recovers from an RLF in the third cell, an RRC message is sent to the target network-side device.

[0353] When the terminal performs a CHO to switch from the first cell to the second cell, and then rebuilds to the third cell after an RLF occurs in the second cell, an RRC message is sent to the target network-side device.

[0354] When the terminal performs a CHO to switch from the first cell to the second cell, and then rebuilds to the first cell after an RLF occurs in the second cell, an RRC message is sent to the source network side device.

[0355] The first cell is the cell corresponding to the source network-side device, the second cell is the cell corresponding to the target network-side device, and the third cell is the cell corresponding to the third network-side device.

[0356] This application also provides a network-side device, including a processor and a communication interface. The communication interface is used to send Conditional Handover (CHO) configuration information to a terminal; receive first indication information, the first indication information including a Radio Link Failure (RLF) report; the processor is used to optimize the CHO configuration information corresponding to the terminal based on the first indication information. Alternatively,

[0357] The communication interface is used to receive Radio Resource Control (RRC) messages sent by the terminal; send first indication information to the source network side device; the processor is used to obtain a Radio Link Failure (RLF) report based on the RRC message; wherein, the first indication information is used to instruct the source network side device to optimize the Conditional Handover Configuration (CHO) information corresponding to the terminal.

[0358] This network-side device embodiment corresponds to the above-described network-side method embodiment. All implementation processes and methods of the above-described network-side method embodiment can be applied to this network-side device embodiment and can achieve the same technical effect.

[0359] Specifically, embodiments of this application also provide a network-side device. For example... Figure 10 As shown, the network device 1000 includes: an antenna 101, a radio frequency (RF) device 102, and a baseband device 103. The antenna 101 is connected to the RF device 102. In the uplink direction, the RF device 102 receives information through the antenna 101 and transmits the received information to the baseband device 103 for processing. In the downlink direction, the baseband device 103 processes the information to be transmitted and transmits it to the RF device 102. The RF device 102 processes the received information and transmits it through the antenna 101.

[0360] The aforementioned frequency band processing device can be located in the baseband device 103. The method executed by the network-side device in the above embodiments can be implemented in the baseband device 103, which includes a processor 104 and a memory 105.

[0361] The baseband device 103 may include, for example, at least one baseband board on which multiple chips are disposed, such as... Figure 10 As shown, one of the chips, for example, is a processor 104, which is connected to a memory 105 to call the program in the memory 105 and execute the network device operation shown in the above method embodiment.

[0362] The baseband device 103 may also include a network interface 106 for exchanging information with the radio frequency device 102, such as a common public radio interface (CPRI).

[0363] Specifically, the network-side device in this embodiment of the invention further includes: instructions or programs stored in memory 105 and executable on processor 104, wherein processor 104 calls the instructions or programs in memory 105 to execute... Figure 5 and Figure 6 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0364] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described method embodiments and achieve the same technical effects. To avoid repetition, these will not be described again here.

[0365] The processor mentioned above is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0366] This application also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above method embodiments and achieve the same technical effect. To avoid repetition, it will not be described again here.

[0367] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0368] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0369] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0370] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A method for optimizing CHO configuration information, characterized in that, include: The source network side device sends conditional switching CHO configuration information to the terminal; The source network side device receives first indication information, which includes a Radio Link Failure (RLF) report. The source network side device optimizes the CHO configuration information corresponding to the terminal according to the first indication information; The source network-side device receives first indication information, including: In the event that the terminal does not perform a CHO and an RLF occurs in the first cell, the source network-side device receives a first indication information sent by the target network-side device, the first indication information including a first RLF report; When the terminal performs a CHO to switch from the first cell to the second cell, and after an RLF occurs in the second cell, it rebuilds to the third cell, the source network side device receives a first indication information sent by the target network side device, the first indication information including a second RLF report; When the terminal performs a CHO to switch from the first cell to the second cell, and then rebuilds to the first cell after an RLF occurs in the second cell, the source network side device receives a first indication message sent by the terminal, the first indication message including a second RLF report; Wherein, the first RLF report is sent by the terminal when an RLF occurs in the first cell; the second RLF report is sent by the terminal when an RLF occurs in the second cell; the first cell is the cell corresponding to the source network-side device, the second cell is the cell corresponding to the target network-side device, and the third cell is the cell corresponding to the third network-side device.

2. The method for optimizing CHO configuration information according to claim 1, characterized in that, Before the source network-side device receives the first indication information, it also includes: The source network side device receives a first notification message sent by the target network side device; The source network-side device sends CHO-related information to the target network-side device according to the first notification message; The CHO-related information includes at least one of the following: Terminal context information, including CHO configuration information corresponding to the terminal; CHO configuration information corresponding to the terminal; The CHO configuration information corresponding to the terminal includes at least one of the following: The source network-side device is configured with the CHO execution conditions for the terminal; The source network-side device is the CHO candidate cell list configured for the terminal.

3. The method for optimizing CHO configuration information according to claim 2, characterized in that, The source network-side device sends CHO-related information to the target network-side device according to the first notification message, including: The source network-side device determines the ID of the target network-side device based on the first notification message; The source network device sends the CHO-related information to the target network device based on the ID of the target network device.

4. The method for optimizing CHO configuration information according to claim 2, characterized in that, The first notification message is a successful HO SUCCESS message; or, The first notification message is sent by the target network-side device to the source network-side device after the target network-side device determines the ID of the source network-side device based on the RLF report.

5. The method for optimizing CHO configuration information according to claim 2, characterized in that, The first indication information also includes at least one of the following: The CHO-related information; The target network-side device determines the measurement information corresponding to the CHO candidate cell from the neighbor cell measurement information in the RLF report based on the CHO candidate cell list. The target network-side device uses the CHO candidate cell list to mark the neighboring cells of the CHO candidate cells in the RLF report.

6. A method for processing CHO configuration information, characterized in that, include: The target network-side device receives a Radio Resource Control (RRC) message sent by the terminal; The target network-side device obtains a Radio Link Failure (RLF) report based on the RRC message; The target network-side device sends a first indication message to the source network-side device; The first indication information is used to instruct the source network side device to optimize the conditional switching CHO configuration information corresponding to the terminal; The RRC message includes at least one of the RLF indication information and the RLF report; The target network-side device obtains an RLF report based on the RRC message, including: If the RRC message includes the RLF report, the target network-side device receives the RLF report; If the RRC message does not include the RLF report, the target network-side device sends a second indication message to the terminal based on the RLF indication information. The second indication message is used to instruct the terminal to send the RLF report to the target network-side device. The target network-side device receives the RLF report; The RLF indication information indicates that the RLF report is related to the CHO.

7. The method for processing CHO configuration information according to claim 6, characterized in that, The RLF report is related to the CHO and includes at least one of the following: The RLF report includes parameters related to CHO; The RLF report is generated after the terminal receives the CHO configuration information.

8. The method for processing CHO configuration information according to claim 7, characterized in that, The target network-side device sends a first indication message to the source network-side device, including: The target network-side device sends the RLF report to the source network-side device.

9. The method for processing CHO configuration information according to claim 7, characterized in that, After the target network-side device obtains the RLF report based on the RRC message, the method further includes: According to the RLF report, the target network-side device sends a first notification message to the source network-side device; The target network-side device receives CHO-related information fed back by the source network-side device, and the CHO-related information corresponds to the terminal.

10. The method for processing CHO configuration information according to claim 9, characterized in that, The target network-side device sends a first indication message to the source network-side device, including: The target network-side device sends the first indication information to the source network-side device, the first indication information including the RLF report, and at least one of the following: The CHO-related information; The target network-side device determines the measurement information corresponding to the CHO candidate cell from the neighbor cell measurement information in the RLF report based on the CHO candidate cell list. The target network-side device uses the CHO candidate cell list to mark the neighboring cells of the CHO candidate cells in the RLF report.

11. The method for processing CHO configuration information according to any one of claims 6 to 10, characterized in that, The cell corresponding to the target network-side device is any one of the following: The first target cell is the cell in which the terminal maintains connection after cell handover or RLF recovery, and the target cell is a cell in the CHO candidate cells; The second target cell is a cell other than the cell corresponding to the source network side device and the first target cell.

12. The method for processing CHO configuration information according to any one of claims 6 to 10, characterized in that, The first indication information is any one of the following: Failure Indication message; Switch to Handover Report.

13. An optimized triggering method for CHO configuration information, characterized in that, include: The terminal receives conditional switching (CHO) configuration information sent by the source network-side device; When the terminal experiences a Radio Link Failure (RLF), the terminal sends a Radio Resource Control (RRC) message to the target network device. The RRC message includes at least one of RLF indication information and RLF report, which are used to indicate the optimization of CHO configuration information; When the terminal experiences a Radio Link Failure (RLF), the terminal sends an RRC message to the target network-side device, including: If an RLF occurs with the first cell before the terminal executes a CHO, and the terminal rebuilds to the second cell or performs RLF recovery in the third cell, the terminal sends an RRC message to the target network-side device. When the terminal performs a CHO to switch from the first cell to the second cell, and then rebuilds to the third cell after an RLF occurs in the second cell, the terminal sends an RRC message to the target network-side device. When the terminal performs a CHO to switch from the first cell to the second cell, and then reconnects to the first cell after an RLF occurs in the second cell, the terminal sends an RRC message to the source network side device. The first cell is the cell corresponding to the source network-side device, the second cell is the cell corresponding to the target network-side device, and the third cell is the cell corresponding to the third network-side device.

14. The optimized triggering method for CHO configuration information according to claim 13, characterized in that, If the RRC message includes RLF indication information, the RLF indication information indicates that the RLF is related to the CHO.

15. The optimized triggering method for CHO configuration information according to claim 14, characterized in that, The RLF report is related to the CHO and includes at least one of the following: The RLF report includes parameters related to CHO; The RLF report is generated after the terminal receives the CHO configuration information.

16. The method for optimizing and triggering CHO configuration information according to any one of claims 13 to 15, characterized in that, The RRC message includes at least one of the following: RRC reconfiguration complete message: RRCReconfigurationComplete; RRC setup completes with the RRCSetupComplete message; RRC Reestablishment Complete message; RRC recovery completes with the RRCResumeComplete message; The terminal replies with a UEInformationResponse message.

17. An optimization device for CHO configuration information, characterized in that, include: The configuration module is used to send condition switching CHO configuration information to the terminal; The receiving module is configured to receive first indication information, the first indication information including a radio link failure (RLF) report; The optimization module is used to optimize the CHO configuration information corresponding to the terminal according to the first indication information; The receiving module is specifically used for: In the case where the terminal does not perform CHO and an RLF occurs in the first cell, a first indication information is received from the target network-side device, the first indication information including a first RLF report; When the terminal performs a CHO to switch from the first cell to the second cell, and then rebuilds to the third cell after an RLF occurs in the second cell, it receives a first indication message sent by the target network-side device, the first indication message including a second RLF report; When the terminal performs a CHO to switch from the first cell to the second cell, and after a radio link failure (RLF) occurs in the second cell, it re-establishes the connection to the first cell, the terminal receives a first indication message, which includes a second RLF report. Wherein, the first RLF report is sent by the terminal when an RLF occurs in the first cell; the second RLF report is sent by the terminal when an RLF occurs in the second cell; the first cell is the cell corresponding to the source network-side device, the second cell is the cell corresponding to the target network-side device, and the third cell is the cell corresponding to the third network-side device.

18. The apparatus for optimizing CHO configuration information according to claim 17, characterized in that, Before receiving the first indication information, the receiving module is further configured to: Receive the first notification message sent by the target network-side device; Based on the first notification message, send CHO-related information to the target network-side device; The CHO-related information includes at least one of the following: Terminal context information, including CHO configuration information corresponding to the terminal; CHO configuration information corresponding to the terminal; The CHO configuration information corresponding to the terminal includes at least one of the following: The CHO execution conditions configured for the terminal by the source network-side device; The source network-side device configures a list of CHO candidate cells for the terminal.

19. The apparatus for optimizing CHO configuration information according to claim 18, characterized in that, The receiving module is specifically used for: Based on the first notification message, determine the ID of the target network-side device; Based on the ID of the target network-side device, send the CHO-related information to the target network-side device.

20. The apparatus for optimizing CHO configuration information according to claim 18, characterized in that, The first notification message is a successful HO SUCCESS message; or, The first notification message is sent by the target network-side device to the receiving module after determining the ID of the source network-side device based on the RLF report.

21. The device for optimizing CHO configuration information according to claim 18, characterized in that, The first indication information also includes at least one of the following: The CHO-related information; The target network-side device determines the measurement information corresponding to the CHO candidate cell from the neighbor cell measurement information in the RLF report based on the CHO candidate cell list. The target network-side device uses the CHO candidate cell list to mark the neighboring cells of the CHO candidate cells in the RLF report.

22. A device for processing CHO configuration information, characterized in that, include: The receiving module is used to receive Radio Resource Control (RRC) messages sent by the terminal; The acquisition module is used to obtain a Radio Link Failure (RLF) report based on the RRC message; The sending module is used to send the first indication information to the source network side device; The first indication information is used to instruct the source network side device to optimize the conditional switching CHO configuration information corresponding to the terminal; The RRC message includes at least one of the RLF indication information and the RLF report; The acquisition module is specifically used for: If the RRC message includes the RLF report, the RLF report is obtained; If the RRC message does not include the RLF report, a second indication message is sent to the terminal according to the RLF indication information. The second indication message is used to instruct the terminal to send the RLF report to the target network-side device. Receive the RLF report; The RLF indication information indicates that the RLF report is related to the CHO.

23. The CHO configuration information processing apparatus according to claim 22, characterized in that, The RLF report is related to the CHO and includes at least one of the following: The RLF report includes parameters related to CHO; The RLF report is generated after the terminal receives the CHO configuration information.

24. The CHO configuration information processing apparatus according to claim 23, characterized in that, The sending module is specifically used for: Send the RLF report to the source network-side device.

25. The CHO configuration information processing apparatus according to claim 23, characterized in that, The sending module is also used for: Based on the RLF report, a first notification message is sent to the source network-side device; The terminal receives CHO-related information fed back by the source network-side device, and the CHO-related information corresponds to the terminal.

26. The CHO configuration information processing apparatus according to claim 25, characterized in that, The sending module is specifically used for: Send the first indication information to the source network-side device, the first indication information including the RLF report, and at least one of the following: The CHO-related information; The CHO configuration information processing device determines the measurement information corresponding to the CHO candidate cell from the neighbor cell measurement information in the RLF report based on the CHO candidate cell list. The CHO configuration information processing device marks the neighboring cells of the CHO candidate cells in the RLF report according to the CHO candidate cell list.

27. The CHO configuration information processing apparatus according to any one of claims 22 to 26, characterized in that, The first indication information is any one of the following: Failure Indication message; Switch to Handover Report.

28. An optimization triggering device for CHO configuration information, characterized in that, include: The receiving module is used to receive conditional switching (CHO) configuration information sent by the source network-side device; The sending module is used to send a Radio Resource Control (RRC) message to the target network-side device when a radio link failure (RLF) occurs at the terminal. The RRC message includes at least one of RLF indication information and RLF report, which are used to indicate the optimization of CHO configuration information; The sending module is specifically used for: If an RLF occurs with the first cell before the terminal executes a CHO, and the network is rebuilt to the second cell or recovers from an RLF in the third cell, an RRC message is sent to the target network-side device. When the terminal performs a CHO to switch from the first cell to the second cell, and then rebuilds to the third cell after an RLF occurs in the second cell, an RRC message is sent to the target network-side device. When the terminal performs a CHO to switch from the first cell to the second cell, and then rebuilds to the first cell after an RLF occurs in the second cell, an RRC message is sent to the source network side device. The first cell is the cell corresponding to the source network-side device, the second cell is the cell corresponding to the target network-side device, and the third cell is the cell corresponding to the third network-side device.

29. The optimization triggering device for CHO configuration information according to claim 28, characterized in that, If the RRC message includes RLF indication information, the RLF indication information indicates that the RLF is related to the CHO.

30. The optimization triggering device for CHO configuration information according to claim 29, characterized in that, The RLF report is related to the CHO and includes at least one of the following: The RLF report includes parameters related to CHO; The RLF report is generated after the terminal receives the CHO configuration information.

31. The optimized triggering device for CHO configuration information according to any one of claims 28 to 30, characterized in that, The RRC message includes at least one of the following: RRC reconfiguration complete message: RRCReconfigurationComplete; RRC setup completes with the RRCSetupComplete message; RRC Reestablishment Complete message; RRC recovery completes with the RRCResumeComplete message; The terminal replies with a UEInformationResponse message.

32. A network-side device, characterized in that, It includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method for optimizing CHO configuration information as described in any one of claims 1 to 5.

33. A network-side device, characterized in that, It includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the CHO configuration information processing method as described in any one of claims 6 to 12.

34. A terminal, characterized in that, It includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein when the program or instructions are executed by the processor, they implement the steps of the optimized triggering method for CHO configuration information as described in any one of claims 13 to 16.

35. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the CHO configuration information optimization method as described in any one of claims 1 to 5, or the steps of the CHO configuration information processing method as described in any one of claims 6 to 12, or the steps of the CHO configuration information optimization triggering method as described in any one of claims 13 to 16.

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