Configuration method, information reporting method, network side equipment and terminal

Abstract

The embodiment of the invention provides a configuration method, an information reporting method, network side equipment and a terminal. The method comprises the steps that the configuration terminal reports relevant information of CHO or CPAC. In the embodiment of the invention, the network side equipment can configure the terminal to report the relevant information of the CHO or the CPAC, so that the terminal can report the relevant information of the CHO or the CPAC, and the network side equipment can carry out condition switching configuration optimization processing and / or random access configuration optimization processing.

Description

[0001] This application is a divisional application of the patent application No. 202110301986.6, with the application date of March 22, 2021, and the invention name of "optimization configuration method, device, equipment and readable storage medium". TECHNICAL FIELD

[0002] Embodiments of the present application relate to the field of communication technology, in particular to a method, device, equipment and readable storage medium for optimization configuration. BACKGROUND

[0003] Conditional handover is a mechanism to enhance the robustness of handover or secondary node addition. To solve the problem that the channel between the terminal (such as user equipment (UE)) and the serving cell suddenly becomes poor (especially high frequency), resulting in the UE being unable to normally complete the handover or secondary node addition process, the base station can configure the UE to trigger measurement reporting at a lower threshold, and carry a higher handover triggering threshold in the handover (HO) command or secondary node addition command, which can also carry the random access resources used by the UE in the target cell. Once the handover threshold is met, the UE initiates a random access process to the target base station or cell. The source base station or cell can configure the UE with conditional handover for multiple target cells, see Figure 1 .

[0004] When the UE fails in the radio link failure (RLF) in the serving cell, the UE performs cell selection (the UE selects a cell that meets the camping threshold for camping), if the selected cell is a conditional handover (CHO) candidate cell configured by the network, and the network side configures the terminal to attempt CHO after RLF failure, the UE can attempt CHO again; otherwise, the UE performs a reestablishment process.

[0005] Similarly, conditional primary secondary cell addition or change (CPAC) is a condition that the network side master node (MN) or secondary node (SN) sends to the terminal in advance to add or change the primary secondary cell (PScell). When the terminal measures that the target PScell meets the condition, it spontaneously performs the PScell addition or change process. When CPAC fails, the network side can also configure the terminal to attempt other CPAC candidate cells.

[0006] After the source base station configures the terminal with CHO or CPAC, the UE can be in multiple situations, and the UE can attempt to access the target cell using the resources of the CHO. After the UE successfully connects to the target cell, the network side cannot distinguish which situation the UE experienced to access the network, so as to optimize the handover configuration and / or random access configuration. SUMMARY

[0007] Embodiments of the present application provide a method and apparatus for optimizing configuration, and a device and readable storage medium, to solve the problem of how the network side optimizes the handover configuration and / or random access configuration.

[0008] In a first aspect, a method for optimizing configuration is provided, which is executed by a network side device, and includes:

[0009] configuring the terminal to report information related to CHO or conditional CPAC, wherein the information related to CHO or conditional CPAC is used to optimize the handover configuration and / or random access configuration;

[0010] The information related to CHO or conditional CPAC includes one or more of the following:

[0011] Before, during or after the execution of CHO or CPAC, the terminal RLM finds that the serving cell has a risk of out-of-sync or a risk of radio link failure or has started a first timer;

[0012] When the terminal RLF, none of the configured CHO or CPAC is triggered or only one event is triggered;

[0013] After the terminal RLF or CHO failure, the cell selection is performed, and the candidate cell of CHO is selected;

[0014] When the terminal RLF occurs in the master cell group (MCG), none of the configured CPAC is triggered or only one event is triggered;

[0015] When the first timer is started, the terminal measures the RRM measurement value of the current cell and / or neighboring cell;

[0016] The time difference between the start of the first timer and the reception of the CHO or CPAC configuration;

[0017] When CHO or CPAC is executed, or when CHO or CPAC is successful, the timing of the first timer and / or the number of RLC retransmissions;

[0018] The CHO or CPAC candidate cell identification (ID) configured by the network side, the corresponding event, and / or the threshold value or offset corresponding to the event;

[0019] Random access information configured for terminals in cells where CHO or CPAC failure occurs;

[0020] Configure CHO or CPAC to the time difference when the terminal successfully completes random access or successfully completes Radio Resource Control (RRC) connection in the target cell;

[0021] Time information corresponding to the relevant information of the CHO or CPAC;

[0022] The location information of the terminal corresponding to the relevant information of the CHO or CPAC;

[0023] Measurement results of the wireless network corresponding to the relevant information of the CHO or CPAC.

[0024] Optionally, the method further includes:

[0025] Receive relevant information about CHO or CPAC reported by the terminal;

[0026] Based on the relevant information of the CHO or CPAC, perform conditional switching configuration optimization and / or random access configuration optimization.

[0027] Optionally, the step of performing conditional handover configuration optimization and / or random access configuration optimization based on the relevant information of the CHO or CPAC includes:

[0028] Based on the relevant information of the CHO or CPAC, as well as one or more of the random access report, wireless link failure report, and the location of the terminal, conditional handover configuration optimization and / or random access configuration optimization are performed.

[0029] Optionally, the step of receiving the relevant information of CHO or CPAC reported by the receiving terminal includes:

[0030] Receive the RRC Reconstruction Request Message or Radio Link Failure Report sent by the terminal in the connected state or during the transition to the connected state, wherein the RRC Reconstruction Request Message or Radio Link Failure Report includes relevant information of the CHO or CPAC;

[0031] or,

[0032] Receive message A sent by the terminal during the two-step random access process in the target cell, message A includes relevant information of the CHO or CPAC.

[0033] Optionally, the step of receiving the relevant information of CHO or CPAC reported by the receiving terminal includes:

[0034] Send a first request to the terminal;

[0035] Receive relevant information about CHO or CPAC reported by the terminal according to the first request;

[0036] or,

[0037] Receive relevant information about CHO or CPAC actively reported by the receiving terminal;

[0038] or,

[0039] Receive a notification message sent by the terminal, the notification message indicating that the terminal has relevant information about the CHO or CPAC;

[0040] According to the notification message, a second request is sent to the terminal;

[0041] Receive the condition switching or CPAC related information reported by the terminal based on the second request.

[0042] Secondly, a method for optimizing configuration is provided, executed by the terminal, including:

[0043] Report relevant information about CHO or CPAC to network-side devices;

[0044] The relevant information of the CHO or CPAC includes one or more of the following:

[0045] Before, during, or upon successful execution of CHO or CPAC, the terminal RLM discovers that the serving cell physical layer is at risk of losing synchronization or that the radio link is at risk of failure, or that the first timer has been started.

[0046] When the terminal RLF occurs, neither the configured CHO nor CPAC is triggered, or only one event is triggered.

[0047] After the terminal fails RLF or CHO, it performs cell selection and selects a candidate cell for CHO.

[0048] When the terminal experiences an RLF in the primary cell group (MCG), the configured CPAC is either not triggered or only one event is triggered.

[0049] When the first timer is started, the RRM measurement values ​​of the local cell and / or neighboring cells measured by the terminal;

[0050] The time difference between starting the first timer and receiving the CHO or CPAC configuration;

[0051] When CHO or CPAC is executed, or when CHO or CPAC is successful, the timing status of the first timer and / or the number of RLC retransmissions;

[0052] The CHO or CPAC candidate cell identifier ID configured on the network side, the corresponding event, and / or the threshold value or offset corresponding to the event;

[0053] Random access information configured for terminals in cells where CHO or CPAC failure occurs;

[0054] Configure CHO or CPAC to the time difference when the terminal successfully completes random access or successfully completes Radio Resource Control (RRC) connection in the target cell;

[0055] Time information corresponding to the relevant information of the CHO or CPAC;

[0056] The location information of the terminal corresponding to the relevant information of the CHO or CPAC;

[0057] Measurement results of the wireless network corresponding to the relevant information of the CHO or CPAC.

[0058] Optionally, the method further includes:

[0059] Obtain the configuration information of the network-side device, which is used to configure the terminal to report relevant information of the CHO or CPAC.

[0060] Optionally, the network-side device includes one of the following:

[0061] Network management functions; entity tracking and collection; base station.

[0062] Optionally, the step of reporting relevant information about CHO or CPAC to the network-side device includes:

[0063] During the connected state or the transition to the connected state, an RRC Reconstruction Request Message or a Radio Link Failure Report is sent, the RRC Reconstruction Request Message or Radio Link Failure Report including relevant information of the CHO or CPAC;

[0064] or,

[0065] During the two-step random access process in the target cell, message A is sent, which includes relevant information about the CHO or CPAC.

[0066] Optionally, the step of reporting relevant information about CHO or CPAC to the network-side device includes:

[0067] Receive the first request sent by the network-side device;

[0068] Report relevant information about CHO or CPAC to the network-side device according to the first request;

[0069] or,

[0070] Actively report relevant information about CHO or CPAC to network-side devices;

[0071] or,

[0072] Send a notification message indicating that the terminal has relevant information about the CHO or CPAC;

[0073] Receive the second request sent by the network-side device;

[0074] The relevant information of CHO or CPAC is reported to the network-side device according to the second request.

[0075] Thirdly, an optimized configuration apparatus is provided for use in network-side devices, comprising:

[0076] The configuration module is used to configure the information related to CHO or CPAC reported by the terminal.

[0077] The relevant information of the CHO or CPAC includes one or more of the following:

[0078] Before, during, or upon successful execution of CHO or CPAC, the terminal RLM discovers that the serving cell physical layer is at risk of losing synchronization or that the radio link is at risk of failure, or that the first timer has been started.

[0079] When the terminal RLF occurs, neither the configured CHO nor CPAC is triggered, or only one event is triggered.

[0080] After the terminal fails RLF or CHO, it performs cell selection and selects a candidate cell for CHO.

[0081] When the terminal experiences an RLF in the primary cell group (MCG), the configured CPAC is either not triggered or only one event is triggered.

[0082] When the first timer is started, the RRM measurement values ​​of the local cell and / or neighboring cells measured by the terminal;

[0083] The time difference between starting the first timer and receiving the CHO or CPAC configuration;

[0084] When CHO or CPAC is executed, or when CHO or CPAC is successful, the timing status of the first timer and / or the number of RLC retransmissions;

[0085] The CHO or CPAC candidate cell identifier ID configured on the network side, the corresponding event, and / or the threshold value or offset corresponding to the event;

[0086] Random access information configured for terminals in cells where CHO or CPAC failure occurs;

[0087] Configure CHO or CPAC to the time difference when the terminal successfully completes random access or successfully completes Radio Resource Control (RRC) connection in the target cell;

[0088] Time information corresponding to the relevant information of the CHO or CPAC;

[0089] The location information of the terminal corresponding to the relevant information of the CHO or CPAC;

[0090] Measurement results of the wireless network corresponding to the relevant information of the CHO or CPAC.

[0091] Fourthly, an optimized configuration device is provided for use in a terminal, comprising:

[0092] The reporting module is used to report relevant information about CHO or CPAC to network-side devices;

[0093] The relevant information of the CHO or CPAC includes one or more of the following:

[0094] Before, during, or upon successful execution of CHO or CPAC, the terminal RLM discovers that the serving cell physical layer is at risk of losing synchronization or that the radio link is at risk of failure, or that the first timer has been started.

[0095] When the terminal RLF occurs, neither the configured CHO nor CPAC is triggered, or only one event is triggered.

[0096] After the terminal fails RLF or CHO, it performs cell selection and selects a candidate cell for CHO.

[0097] When the terminal experiences an RLF in the primary cell group (MCG), the configured CPAC is either not triggered or only one event is triggered.

[0098] When the first timer is started, the RRM measurement values ​​of the local cell and / or neighboring cells measured by the terminal;

[0099] The time difference between starting the first timer and receiving the CHO or CPAC configuration;

[0100] When CHO or CPAC is executed, or when CHO or CPAC is successful, the timing status of the first timer and / or the number of RLC retransmissions;

[0101] The CHO or CPAC candidate cell identifier ID configured on the network side, the corresponding event, and / or the threshold value or offset corresponding to the event;

[0102] Random access information configured for terminals in cells where CHO or CPAC failure occurs;

[0103] Configure CHO or CPAC to the time difference when the terminal successfully completes random access or successfully completes Radio Resource Control (RRC) connection in the target cell;

[0104] Time information corresponding to the relevant information of the CHO or CPAC;

[0105] The location information of the terminal corresponding to the relevant information of the CHO or CPAC;

[0106] Measurement results of the wireless network corresponding to the relevant information of the CHO or CPAC.

[0107] Fifthly, a network-side device is provided, comprising: a processor, a memory, and a program stored in the memory and executable on the processor, wherein the program, when executed by the processor, implements the steps of the method as described in the first aspect.

[0108] In a sixth aspect, a terminal is provided, comprising: a processor, a memory, and a program stored in the memory and executable on the processor, wherein the program, when executed by the processor, performs the steps of the method as described in the second aspect.

[0109] A seventh aspect provides a readable storage medium storing a program that, when executed by a processor, implements the steps of the method as described in the first or second aspect.

[0110] In this embodiment of the application, the network-side device can be configured to report relevant information of CHO or CPAC by the terminal. In this way, the terminal can report relevant information of CHO or CPAC, enabling the network-side device to perform conditional handover configuration optimization processing and / or random access configuration optimization processing. Attached Figure Description

[0111] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0112] Figure 1 This is a flowchart of condition switching;

[0113] Figure 2 This is a schematic diagram of a wireless communication system applicable to embodiments of this application.

[0114] Figure 3 This is one of the flowcharts of the optimized configuration method provided in the embodiments of this application;

[0115] Figure 4 This is the second flowchart of the optimized configuration method provided in the embodiments of this application;

[0116] Figure 5 This is the third flowchart of the optimized configuration method provided in the embodiments of this application;

[0117] Figure 6 This is one of the schematic diagrams of the optimized configuration device provided in the embodiments of this application;

[0118] Figure 7 This is a second schematic diagram of the optimized configuration device provided in the embodiments of this application;

[0119] Figure 8 This is a schematic diagram of the network-side device provided in an embodiment of this application;

[0120] Figure 9 This is a schematic diagram of the terminal provided in the embodiments of this application. Detailed Implementation

[0121] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0122] The term "comprising," and any variations thereof, used in the specification and claims of this application, is intended to cover a non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product, or apparatus. Furthermore, the use of "and / or" in the specification and claims indicates at least one of the connected objects, such as A and / or B, indicating the inclusion of A alone, B alone, or both A and B.

[0123] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0124] 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. However, the following description describes New Radio (NR) systems for illustrative purposes, and the term NR is used in most of the following description, although these technologies can also be applied to applications other than NR systems, such as 6th Generation (6G) communication systems.

[0125] See Figure 2This diagram illustrates a block diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 21 and a network-side device 22. The terminal 21 can also be referred to as a terminal device or user equipment (UE). The terminal 21 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), wearable device, vehicle user equipment (VUE), pedestrian user equipment (PUE), etc. Wearable devices include wristbands, headphones, glasses, etc. It should be noted that the specific type of terminal 21 is not limited in this embodiment. Network-side device 22 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.

[0126] See Figure 3 This application provides a method for optimizing configuration. The execution subject of this method is a network-side device, such as a network management function, a trace collection entity (TCE), or a base station. Specific steps include: Step 301.

[0127] Step 301: Configure the terminal to report relevant information about CHO or CPAC, which is used to optimize handover configuration and / or random access configuration.

[0128] In one embodiment of this application, Figure 3 The method shown may also include:

[0129] Receive relevant information about CHO or CPAC reported by the terminal;

[0130] Based on the relevant information of the CHO or CPAC, perform conditional switching configuration optimization and / or random access configuration optimization.

[0131] In one embodiment of this application, the relevant information of the CHO or CPAC includes one or more of the following:

[0132] (1) Before or during the execution of CHO or CPAC or before the event is triggered upon success, the terminal radio link management (RLM) discovers that the serving cell physical layer is at risk of losing synchronization or that the radio link is at risk of failure or has started the first timer.

[0133] For example, the first timer can be a T310 timer.

[0134] (2) When the terminal RLF is triggered, none of the configured CHOs are triggered or only one event is triggered (for example, CHO or CPAC can be configured with A5 event and A3 event, of which only A5 event or A3 event is triggered, or CHO or CPAC can be configured with A4 event and B1 event, of which only A4 event or A3 event is triggered).

[0135] (3) After the terminal fails RLF or CHO, it performs cell selection and selects a candidate cell of CHO. For example, it uses 1 bit to indicate that after the terminal fails RLF or CHO, it performs cell selection and selects a candidate cell of CHO.

[0136] (4) When the terminal experiences an RLF in the Master Cell group (MCG), the configured CPAC is not triggered or only one event is triggered (for example, CHO or CPAC can be configured with A5 event and A3 event, where only A5 event or A3 event is triggered, or CHO or CPAC can be configured with A4 event and B1 event, where only A4 event or A3 event is triggered).

[0137] (5) When the first timer is started, the terminal measures the Radio Resource Management (RRM) values ​​of the local cell and / or neighboring cells;

[0138] Optionally, RRM measurements can be beam-level or cell-level.

[0139] (6) The time difference between starting the first timer and receiving the CHO or CPAC configuration;

[0140] (7) When CHO or CPAC is executed, or when CHO or CPAC is successful, the timing status of the first timer (e.g., how long it has been timed) and / or the number of RLC retransmissions;

[0141] (8) The CHO or CPAC candidate cell ID configured on the network side, the corresponding event, and / or the threshold value or offset corresponding to the event;

[0142] Optionally, an event may include one or more of the following: (1) A3 event; (2) A5 event; (3) A4 event; (4) B1 event; that is, the CHO or CPAC candidate cell ID configured on the network side, the corresponding A3 event, or the corresponding A5 event, or the corresponding A4 event, or the corresponding B1 event, or the corresponding A3 event and A5 event.

[0143] Optionally, the threshold or offset may include one or more of the following: the offset of event A3 (a3-offset), the threshold 1 of event A5 (a5-Threshold1), the threshold 2 of event A5 (a5-Threshold2), the threshold of event A4 (a4-Threshold), the threshold of event B1 (b1-Threshold), hysteresis, and trigger time (TimeToTrigger).

[0144] (9) Random access information configured for the terminal in a cell where CHO or CPAC fails;

[0145] For example, 2-step non-contention-based random access or contention-based random access (2-step CFRA / CBRA), 4-step non-contention-based random access or contention-based random access (4-step CFRA / CBRA); further, if it is 2-step random access, can it fall back to 4-step random access, or what is the maximum number of 2-step random access attempts that can be made before falling back to 4-step random access?

[0146] (10) Configure CHO1 or CPAC to the time difference between when the terminal successfully completes random access in the target cell (UE sends RRC Setup Request message in the target cell) or successfully completes RRC connection (UE sends RRC Setup Complete or RRC Reconfiguration Complete message in the target cell);

[0147] (11) Time information corresponding to CHO or CPAC related information.

[0148] (12) The location information of the terminal corresponding to the relevant information of CHO or CPAC.

[0149] (13) Measurement results of wireless networks corresponding to CHO or CPAC related information.

[0150] For example, the measurement results for wireless networks include: the measurement results for Wireless Local Area Network (WLAN) and / or Bluetooth (BLUE Tooth) measurement results.

[0151] During the operation of the first timer, if the wireless link is restored, the first timer is stopped; otherwise, it continues to run.

[0152] In one embodiment of this application, conditional handover configuration optimization processing and / or random access configuration optimization processing are performed based on the relevant information of the CHO or CPAC, as well as one or more of the random access report (RA report), radio link failure report (RLF report), and the location of the terminal.

[0153] For example, the following uses the first timer as T310 and the CHO scenario as an example. Other scenarios (such as the CPAC scenario) are similar and will not be described here.

[0154] 1) If the UE detects a potential physical layer loss of synchronization or starts T310 or experiences an RLF before the configured CHO has been triggered, it indicates that the triggering conditions of the candidate cell's CHO are too strict. The threshold for triggering CHO should be lowered, such as by lowering a3-offset and / or a5-Threshold2, reducing hysteresis, TimeToTrigger, and increasing a5-Threshold1.

[0155] Furthermore, based on the time difference between initiating T310 and receiving CHO configuration, and / or the timing length of T310, or the time difference between CHO triggering or execution and initiating T310, the network side can more accurately understand the extent of adjusting the above parameters. For example, the longer the timing length of T310, or the more times RLC retransmission occurs, the greater the risk of RLF occurring in the source cell for the UE. The source base station should configure CHO earlier or significantly lower the triggering or execution threshold of CHO.

[0156] 2) If the UE selects a candidate CHO cell during cell selection, it means that the trigger threshold corresponding to the CHO cell should be lowered so that the UE can switch to the cell via CHO.

[0157] 3) If the UE does not select any CHO candidate cells during cell selection, the cells selected by the UE can be considered as candidate cells in the future.

[0158] 4) If the UE experiences its first CHO failure, the random access information configured for the cell can be used to analyze whether the failure is due to the UE not being allowed to fall back from 2-step random access (RA) to 4-step random access, but the 2-step random access keeps failing to be sent, thus causing the random access failure.

[0159] 5) Based on the time difference between configuring CHO and the UE successfully completing random access in the target cell (UE sends RRC SetupRequest message in the target cell) or successfully completing RRC connection (UE sends RRC Setup Complete or RRC Reconfiguration Complete message in the target cell), as well as the configuration information of the RA of the cell, it can be determined whether the UE takes too long to access the target cell due to trying too many steps 2.

[0160] In one embodiment of this application, the step of receiving relevant information about CHO or CPAC reported by the receiving terminal includes:

[0161] Receive the RRC Reconstruction Request Message or Radio Link Failure Report sent by the terminal in the connected state or during the transition to the connected state, wherein the RRC Reconstruction Request Message or Radio Link Failure Report includes relevant information of the CHO or CPAC;

[0162] or,

[0163] Receive message A sent by the terminal during the two-step random access process in the target cell, message A includes relevant information of the CHO or CPAC.

[0164] In one embodiment of this application, the information related to CHO or CPAC reported by the receiving terminal includes one of the following:

[0165] (1) Send a first request to the terminal; receive relevant information of CHO or CPAC reported by the terminal according to the first request;

[0166] (2) Receive relevant information about CHO or CPAC actively reported by the terminal;

[0167] (3) Receive a notification message sent by the terminal, the notification message indicating that the terminal has relevant information about the CHO or CPAC; send a second request to the terminal according to the notification message; receive the relevant information about the CHO or CPAC reported by the terminal according to the second request.

[0168] In this embodiment of the application, the network-side device configures the terminal to report relevant information of CHO or CPAC. In this way, the network-side device can perform conditional handover configuration optimization and / or random access configuration optimization based on the relevant information of CHO or CPAC reported by the terminal.

[0169] See Figure 4 This application provides a method for optimizing configuration. The execution subject of this method can be a terminal. The specific steps include: step 401.

[0170] Step 401: Report relevant information of CHO or CPAC to the network-side device. The relevant information of CHO or CPAC is used to optimize the handover configuration and / or random access configuration.

[0171] In one embodiment of this application, Figure 4 The method shown may also include:

[0172] Obtain the configuration information of the network-side device, which is used to configure the terminal to report relevant information of the CHO or CPAC.

[0173] In one embodiment of this application, the network-side device includes one of the following:

[0174] Network management functions; entity tracking and collection; base station.

[0175] In the embodiments of this application, the UE reports the relevant information of the above-mentioned CHO or CPAC in message A when it is in connected state or during the transition to connected state, in the RRC Reconstruction Request message or in the Radio Link Failure Report, or during the two-step random access process in the target cell.

[0176] In one embodiment of this application, the step of reporting relevant information of CHO or CPAC to the network-side device includes:

[0177] During the connected state or the transition to the connected state, an RRC Reconstruction Request Message or a Radio Link Failure Report is sent, the RRC Reconstruction Request Message or Radio Link Failure Report including relevant information of the CHO or CPAC;

[0178] or,

[0179] During the two-step random access process in the target cell, message A is sent, which includes relevant information about the CHO or CPAC.

[0180] In one embodiment of this application, the step of reporting relevant information of CHO or CPAC to the network-side device includes one of the following:

[0181] (1) Receive the first request sent by the network-side device; report relevant information of CHO or CPAC to the network-side device according to the first request;

[0182] (2) Proactively report relevant information about CHO or CPAC to network-side devices;

[0183] (3) Send a notification message indicating that the terminal has relevant information about the CHO or CPAC; receive a second request sent by the network-side device; and report relevant information about the CHO or CPAC to the network-side device according to the second request.

[0184] In one embodiment of this application, the relevant information of the CHO or CPAC includes one or more of the following:

[0185] (1) Before or during the execution of CHO or CPAC, or before the event is triggered upon success, the terminal RLM discovers that the serving cell physical layer is at risk of losing synchronization or that the radio link is at risk of failure or that the first timer has been started.

[0186] For example, the first timer can be a T310 timer.

[0187] (2) When the terminal RLF is triggered, none of the configured CHOs are triggered or only one event is triggered (for example, CHO or CPAC can be configured with A5 event and A3 event, of which only A5 event or A3 event is triggered, or CHO or CPAC can be configured with A4 event and B1 event, of which only A4 event or A3 event is triggered).

[0188] (3) After the terminal fails RLF or CHO, it performs cell selection and selects a candidate cell of CHO. For example, it uses 1 bit to indicate that after the terminal fails RLF or CHO, it performs cell selection and selects a candidate cell of CHO.

[0189] (4) When the terminal experiences an RLF in the MCG, the configured CPAC is not triggered or only one event is triggered (for example, CHO or CPAC can be configured with A5 event and A3 event, where only A5 event or A3 event is triggered, or CHO or CPAC can be configured with A4 event and B1 event, where only A4 event or A3 event is triggered).

[0190] (5) When the first timer is started, the RRM measurement values ​​of the local cell and / or neighboring cells measured by the terminal;

[0191] Optionally, RRM measurements can be beam-level or cell-level.

[0192] (6) The time difference between starting the first timer and receiving the CHO or CPAC configuration;

[0193] (7) When CHO or CPAC is executed, or when CHO or CPAC is successful, the timing status of the first timer (e.g., how long it has been timed) and / or the number of RLC retransmissions;

[0194] (8) The CHO or CPAC candidate cell ID configured on the network side, the corresponding event, and / or the threshold value or offset corresponding to the event;

[0195] Optionally, an event may include one or more of the following: (1) A3 event; (2) A5 event; (3) A4 event; (4) B1 event; that is, the A3 event corresponding to the CHO or CPAC candidate cell ID configured on the network side, or the event corresponding to A5, or the event corresponding to A4, or the event corresponding to B1, or the event corresponding to both A3 and A5.

[0196] Optionally, the threshold or offset may include one or more of the following: the offset of event A3, the threshold 1 of event A5, the threshold 2 of event A5, the threshold of event A4, the threshold (b1-Threshold) of event B1, hysteresis, and trigger time.

[0197] (9) Random access information configured for the terminal in a cell where CHO or CPAC fails;

[0198] For example, 2-step non-contention-based random access or contention-based random access, 4-step non-contention-based random access or contention-based random access; furthermore, if it is 2-step random access, can it fall back to 4-step random access, or fall back to the maximum number of 2-step random access attempts that can be made before 4-step random access?

[0199] (10) Configure CHO1 or CPAC to the time difference when the terminal successfully completes random access or RRC connection in the target cell;

[0200] (11) Time information corresponding to CHO or CPAC related information.

[0201] (12) The location information of the terminal corresponding to the relevant information of CHO or CPAC.

[0202] (13) Measurement results of wireless networks corresponding to CHO or CPAC related information.

[0203] For example, the measurement results for wireless networks include: the measurement results for WLAN and / or the measurement results for BLUE Tooth.

[0204] During the operation of the first timer, if the wireless link is restored, the first timer is stopped; otherwise, it continues to run.

[0205] In this embodiment of the application, the network-side device can be configured to report relevant information of CHO or CPAC by the terminal. In this way, the terminal can report relevant information of CHO or CPAC, enabling the network-side device to perform conditional handover configuration optimization processing and / or random access configuration optimization processing.

[0206] See Figure 5 The specific steps include:

[0207] Step 501: Configure the network-side device to report relevant information of CHO or CPAC to the UE.

[0208] Step 502: The UE reports relevant information about CHO or CPAC to the network-side device.

[0209] Step 503: The network-side device performs conditional switching configuration optimization and / or random access configuration optimization based on the relevant information of the CHO or CPAC.

[0210] See Figure 6 This application provides an optimized configuration apparatus for use in network-side devices, such as network management functions, trace collection entities (TCEs), or base stations.

[0211] The device 600 includes:

[0212] Configuration module 601 is used to configure the relevant information of CHO or CPAC reported by the terminal.

[0213] In one embodiment of this application, the relevant information of the CHO or CPAC includes one or more of the following:

[0214] (1) Before or during the execution of CHO or CPAC, or before the event is triggered upon success, the terminal RLM discovers that the serving cell physical layer is at risk of losing synchronization or that the radio link is at risk of failure or that the first timer has been started.

[0215] For example, the first timer can be a T310 timer.

[0216] (2) When the terminal RLF is triggered, none of the configured CHOs are triggered or only one event is triggered (for example, CHO or CPAC can be configured with A5 event and A3 event, of which only A5 event or A3 event is triggered, or CHO or CPAC can be configured with A4 event and B1 event, of which only A4 event or A3 event is triggered).

[0217] (3) After the terminal fails RLF or CHO, it performs cell selection and selects a candidate cell of CHO. For example, it uses 1 bit to indicate that after the terminal fails RLF or CHO, it performs cell selection and selects a candidate cell of CHO.

[0218] (4) When the terminal experiences an RLF in the MCG, the configured CPAC is not triggered or only one event is triggered (for example, CHO or CPAC can be configured with A5 event and A3 event, where only A5 event or A3 event is triggered, or CHO or CPAC can be configured with A4 event and B1 event, where only A4 event or A3 event is triggered).

[0219] (5) When the first timer is started, the RRM measurement values ​​of the local cell and / or neighboring cells measured by the terminal;

[0220] Optionally, RRM measurements can be beam-level or cell-level.

[0221] (6) The time difference between starting the first timer and receiving the CHO or CPAC configuration;

[0222] (7) When CHO or CPAC is executed, or when CHO or CPAC is successful, the timing status of the first timer (e.g., how long it has been timed) and / or the number of RLC retransmissions;

[0223] (8) The CHO or CPAC candidate cell ID configured on the network side, the corresponding event, and / or the threshold value or offset corresponding to the event;

[0224] Optionally, an event may include one or more of the following: (1) A3 event; (2) A5 event; (3) A4 event; (4) B1 event; that is, the A3 event, or the A5 event, or the A4 event, or the B1 event, or the A3 event and A5 event corresponding to the CHO or CPAC candidate cell ID configured on the network side.

[0225] Optionally, the threshold or offset may include one or more of the following: the offset of event A3 (a3-offset), the threshold 1 of event A5 (a5-Threshold1), the threshold 2 of event A5 (a5-Threshold2), the threshold of event A4 (a4-Threshold), the threshold of event B1 (b1-Threshold), hysteresis, and trigger time (TimeToTrigger).

[0226] (9) Random access information configured for the terminal in a cell where CHO or CPAC fails;

[0227] For example, 2-step non-contention-based random access or contention-based random access (2-step CFRA / CBRA), 4-step non-contention-based random access or contention-based random access (4-step CFRA / CBRA); further, if it is 2-step random access, can it fall back to 4-step random access, or what is the maximum number of 2-step random access attempts that can be made before falling back to 4-step random access?

[0228] (10) Configure CHO1 or CPAC to the time difference between when the terminal successfully completes random access in the target cell (UE sends RRC Setup Request message in the target cell) or successfully completes RRC connection (UE sends RRC Setup Complete or RRC Reconfiguration Complete message in the target cell);

[0229] (11) Time information corresponding to CHO or CPAC related information.

[0230] (12) The location information of the terminal corresponding to the relevant information of CHO or CPAC.

[0231] (13) Measurement results of wireless networks corresponding to CHO or CPAC related information.

[0232] For example, the measurement results for wireless networks include: the measurement results for WLAN and / or the measurement results for BLUE Tooth.

[0233] During the operation of the first timer, if the wireless link is restored, the first timer is stopped; otherwise, it continues to run.

[0234] In one embodiment of this application, the device further includes:

[0235] The receiving module is used to receive relevant information about CHO or CPAC reported by the terminal.

[0236] The optimization module is used to perform conditional switching configuration optimization and / or random access configuration optimization based on the relevant information of the CHO or CPAC.

[0237] In one embodiment of this application, the optimization module is further configured to: perform conditional handover configuration optimization processing and / or random access configuration optimization processing based on the relevant information of the CHO or CPAC, as well as one or more of the random access report, wireless link failure report and the location of the terminal.

[0238] In one embodiment of this application, the relevant information of the CHO or CPAC includes one or more of the following:

[0239] In one embodiment of this application, the receiving module is further configured to perform:

[0240] Receive the RRC Reconstruction Request Message or Radio Link Failure Report sent by the terminal in the connected state or during the transition to the connected state, wherein the RRC Reconstruction Request Message or Radio Link Failure Report includes relevant information of the CHO or CPAC;

[0241] or,

[0242] Receive message A sent by the terminal during the two-step random access process in the target cell, message A includes relevant information of the CHO or CPAC.

[0243] In one embodiment of this application, the receiving module is further configured to perform one of the following:

[0244] (1) Send a first request to the terminal; receive relevant information of CHO or CPAC reported by the terminal according to the first request;

[0245] (2) Receive relevant information about CHO or CPAC actively reported by the terminal;

[0246] (3) Receive a notification message sent by the terminal, the notification message indicating that the terminal has relevant information about the CHO or CPAC; send a second request to the terminal according to the notification message; receive the relevant information about the CHO or CPAC reported by the terminal according to the second request.

[0247] The apparatus provided in this application embodiment can achieve... Figure 3 The various processes implemented in the method embodiments shown achieve the same technical effects, and will not be described again here to avoid repetition.

[0248] See Figure 7 This application provides an optimized configuration device applied to a terminal. The device 700 includes:

[0249] The reporting module 701 is used to report relevant information about CHO or CPAC to network-side devices.

[0250] In one embodiment of this application, the device 700 further includes:

[0251] The acquisition module is used to acquire the configuration information of the network-side device, and the configuration information is used to configure the terminal to report the relevant information of the CHO or CPAC.

[0252] In one embodiment of this application, the network-side device includes one of the following: network management functions; tracking and collection entities; and a base station.

[0253] In one embodiment of this application, the reporting module 701 performs the following:

[0254] During the connected state or the transition to the connected state, an RRC Reconstruction Request Message or a Radio Link Failure Report is sent, the RRC Reconstruction Request Message or Radio Link Failure Report including relevant information of the CHO or CPAC;

[0255] or,

[0256] During the two-step random access process in the target cell, message A is sent, which includes relevant information about the CHO or CPAC.

[0257] In one embodiment of this application, the reporting module 701 performs one of the following:

[0258] (1) Receive the first request sent by the network-side device; report relevant information of CHO or CPAC to the network-side device according to the first request;

[0259] (2) Proactively report relevant information about CHO or CPAC to network-side devices;

[0260] (3) Send a notification message indicating that the terminal has relevant information about the CHO or CPAC; receive a second request sent by the network-side device; and report relevant information about the CHO or CPAC to the network-side device according to the second request.

[0261] In one embodiment of this application, the relevant information of the CHO or CPAC includes one or more of the following:

[0262] In one embodiment of this application, the relevant information of the CHO or CPAC includes one or more of the following:

[0263] (1) Before, during, or when CHO or CPAC is executed, or when it is successful, the terminal RLM discovers that the serving cell physical layer is at risk of losing synchronization or that the radio link is at risk of failure or that the first timer has been started.

[0264] For example, the first timer can be a T310 timer.

[0265] (2) When the terminal RLF is triggered, none of the configured CHOs are triggered or only one event is triggered (for example, CHO or CPAC can be configured with A5 event and A3 event, where only A5 event or A3 event is triggered, or CHO or CPAC can be configured with A4 and B1 events, where only A4 event or A3 event is triggered).

[0266] (3) After the terminal fails RLF or CHO, it performs cell selection and selects a candidate cell of CHO. For example, it uses 1 bit to indicate that after the terminal fails RLF or CHO, it performs cell selection and selects a candidate cell of CHO.

[0267] (4) When the terminal experiences an RLF in the MCG, the configured CPAC is not triggered or only one event is triggered (for example, CHO or CPAC can be configured with A5 event and A3 event, where only A5 event or A3 event is triggered, or CHO or CPAC can be configured with A4 and B1 events, where only A4 event or A3 event is triggered).

[0268] (5) When the first timer is started, the RRM measurement values ​​of the local cell and / or neighboring cells measured by the terminal;

[0269] Optionally, RRM measurements can be beam-level or cell-level.

[0270] (6) The time difference between starting the first timer and receiving the CHO or CPAC configuration;

[0271] (7) When CHO or CPAC is executed, or when CHO or CPAC is successful, the timing status of the first timer (e.g., how long it has been timed) and / or the number of RLC retransmissions;

[0272] (8) The CHO or CPAC candidate cell ID configured on the network side, the corresponding event, and / or the threshold value or offset corresponding to the event;

[0273] Optionally, an event may include one or more of the following: (1) A3 event; (2) A5 event; (3) A4 event; (4) B1 event; that is, the CHO or CPAC candidate cell ID configured on the network side, the corresponding A3 event, or the corresponding A5 event, or the corresponding A4 event, or the corresponding B1 event, or the corresponding A3 event and A5 event.

[0274] Optionally, the threshold or offset may include one or more of the following: the offset of event A3 (a3-offset), the threshold 1 of event A5 (a5-Threshold1), the threshold 2 of event A5 (a5-Threshold2), the threshold of event A4 (a4-Threshold), the threshold of event B1 (b1-Threshold), hysteresis, and trigger time (TimeToTrigger).

[0275] (9) Random access information configured for the terminal in a cell where CHO or CPAC fails;

[0276] For example, 2-step non-contention-based random access or contention-based random access (2-step CFRA / CBRA), 4-step non-contention-based random access or contention-based random access (4-step CFRA / CBRA); further, if it is 2-step random access, can it fall back to 4-step random access, or what is the maximum number of 2-step random access attempts that can be made before falling back to 4-step random access?

[0277] (10) Configure CHO1 or CPAC to the time difference between when the terminal successfully completes random access in the target cell (UE sends RRC Setup Request message in the target cell) or successfully completes RRC connection (UE sends RRC Setup Complete or RRC Reconfiguration Complete message in the target cell);

[0278] (11) Time information corresponding to CHO or CPAC related information.

[0279] (12) The location information of the terminal corresponding to the relevant information of CHO or CPAC.

[0280] (13) Measurement results of wireless networks corresponding to CHO or CPAC related information.

[0281] For example, the measurement results for wireless networks include: the measurement results for WLAN and / or the measurement results for BLUE Tooth.

[0282] During the operation of the first timer, if the wireless link is restored, the first timer is stopped; otherwise, it continues to run.

[0283] The apparatus provided in this application embodiment can achieve... Figure 4 The various processes implemented in the method embodiments shown achieve the same technical effects, and will not be described again here to avoid repetition.

[0284] Please see Figure 8 , Figure 8 This is a structural diagram of the network-side device used in an embodiment of the present invention, such as... Figure 8 As shown, the network-side device 800 includes: a processor 801, a transceiver 802, a memory 803, and a bus interface, wherein:

[0285] In one embodiment of the present invention, the network-side device 800 further includes: a program stored on a memory 803 and executable on a processor 801, wherein the program, when executed by the processor 801, implements as follows: Figure 3 The steps of the illustrated embodiment.

[0286] exist Figure 8 In this context, the bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits together, represented by one or more processors (processor 801) and memory (memory 803). The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides an interface. The transceiver 802 can be multiple elements, including transmitters and receivers, providing a unit for communicating with various other devices over a transmission medium.

[0287] The processor 801 is responsible for managing the bus architecture and general processing, while the memory 803 can store the data used by the processor 801 when performing operations.

[0288] The network-side device provided in this application embodiment can achieve... Figure 3 The various processes implemented in the method embodiments shown achieve the same technical effects, and will not be described again here to avoid repetition.

[0289] Figure 9 To realize the hardware structure diagram of a terminal according to an embodiment of this application, the terminal 900 includes, but is not limited to, 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.

[0290] 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.

[0291] 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.

[0292] 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.

[0293] 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-volatile 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-volatile solid-state storage device.

[0294] 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.

[0295] The terminal provided in this application embodiment can achieve... Figure 4 The various processes implemented in the method embodiments shown achieve the same technical effects, and will not be described again here to avoid repetition.

[0296] This application embodiment also provides a readable storage medium storing a program or instructions that, when executed by a processor, implement the above-described functionality. Figures 3-4 The various processes of the method embodiments shown can achieve the same technical effect, and will not be described again here to avoid repetition.

[0297] 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.

[0298] The steps of the methods or algorithms described in this application can be implemented in hardware or by executing software instructions on a processor. The software instructions can consist of corresponding software modules, which can be stored in RAM, flash memory, ROM, EPROM, EEPROM, registers, hard disk, portable hard disk, read-only optical disk, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor, enabling the processor to read information from and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and storage medium can be housed in an ASIC. Alternatively, the ASIC can be housed in a core network interface device. Of course, the processor and storage medium can also exist as discrete components in the core network interface device.

[0299] Those skilled in the art will recognize that, in one or more of the examples above, the functions described in this application can be implemented using hardware, software, firmware, or any combination thereof. When implemented in software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or code on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein communication media include any medium that facilitates the transfer of a computer program from one place to another. Storage media can be any available medium accessible to a general-purpose or special-purpose computer.

[0300] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this application. It should be understood that the above description is only a specific embodiment of this application and is not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made on the basis of the technical solution of this application should be included within the scope of protection of this application.

[0301] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, embodiments of this application can take the form of entirely hardware embodiments, entirely software embodiments, or embodiments combining software and hardware aspects. Furthermore, embodiments of this application can take the form of computer program products implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0302] This application describes embodiments of methods, apparatus (systems), and computer program products according to embodiments of this application with reference to flowchart illustrations and / or block diagrams. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0303] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0304] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 Figure 1 The steps of the function specified in one or more boxes.

[0305] Obviously, those skilled in the art can make various modifications and variations to the embodiments of this application without departing from the spirit and scope of this application. Therefore, if these modifications and variations to the embodiments of this application fall within the scope of the claims of this application and their equivalents, this application also intends to include these modifications and variations.

Claims

1. A method of configuring, characterized by, The method is performed by a network side device, comprising: configuring (301) a terminal to report information related to conditional handover (CHO) or conditional primary and secondary cell addition or change (CPAC); characterized in that the information related to the CHO or CPAC comprises one or more of the following: an event triggering condition of the configured CHO or CPAC, wherein multiple events are configured for the CHO or CPAC, and the event triggering condition of the configured CHO or CPAC comprises one of the following: neither of the configured CHO or CPAC is triggered; only one event of the configured CHO or CPAC is triggered; an event triggered by the configured CHO or CPAC; whether the event of the configured CHO or CPAC is triggered; 1 bit, or an identifier (ID) of a CHO candidate cell, wherein the 1 bit indicates that cell selection is performed after a radio link failure (RLF) or CHO failure occurs in the terminal, and the CHO candidate cell ID is a CHO candidate cell ID selected by performing cell selection after the RLF or CHO failure occurs in the terminal; an event triggering condition of the configured CPAC when the terminal has an RLF in a master cell group (MCG), wherein multiple events are configured for the CPAC, and the event triggering condition of the configured CPAC comprises one of the following: neither of the configured CPAC is triggered; only one event of the configured CPAC is triggered; an event triggered by the configured CPAC; whether the event of the configured CPAC is triggered; and a running condition of a first timer and / or a number of radio link control (RLC) retransmissions when the CHO or CPAC is performed or when the CHO or CPAC is successful.

2. The method of claim 1, wherein, The method further comprises: receiving information related to the CHO or CPAC reported by a terminal; performing conditional handover configuration optimization processing and / or random access configuration optimization processing according to the information related to the CHO or CPAC.

3. The method of claim 1, wherein, The step of receiving the information related to the CHO or CPAC reported by the terminal comprises: receiving an RRC reestablishment request message or a radio link failure report sent by the terminal in a connected state or in a process of changing to a connected state, wherein the RRC reestablishment request message or the radio link failure report comprises the information related to the CHO or CPAC; or, receiving a message A sent by the terminal in a process of performing 2-step random access in a target cell, wherein the message A comprises the information related to the CHO or CPAC.

4. The method of claim 1, wherein, The step of receiving the information related to the CHO or CPAC reported by the terminal comprises: sending a first request to the terminal and receiving information related to the CHO or CPAC reported by the terminal according to the first request; or, receiving information related to the CHO or CPAC actively reported by the terminal; or, receiving a notification message sent by the terminal, wherein the notification message indicates that the terminal has the information related to the CHO or CPAC, sending a second request to the terminal according to the notification message, and receiving information related to the CHO or CPAC reported by the terminal according to the second request.

5. A method for information reporting, the method comprising: The method is performed by a terminal, comprising: reporting (401) the CHO or CPAC related information to the network side device; characterized in that the CHO or CPAC related information comprises one or more of the following: event triggering condition of the configured CHO or CPAC, wherein multiple events are configured for the CHO or CAPC, and the event triggering condition of the configured CHO or CPAC comprises one of the following: none of the configured CHO or CPAC is triggered; only one event of the configured CHO or CPAC is triggered; the event of the configured CHO or CPAC is triggered; whether the event of the configured CHO or CPAC is triggered; and 1 bit, or an identifier ID of the CHO candidate cell, wherein the 1 bit indicates that cell selection is performed after radio link failure RLF or CHO failure occurs at the terminal, and the CHO candidate cell ID is the identifier ID of the CHO candidate cell selected by performing cell selection after RLF or CHO failure occurs at the terminal. event triggering condition of the configured CPAC when RLF occurs at a master cell group MCG of the terminal, wherein multiple events are configured for the CPAC, and the event triggering condition of the configured CPAC comprises one of the following: none of the configured CPAC is triggered; only one event of the configured CPAC is triggered; the event of the configured CPAC is triggered; whether the event of the configured CPAC is triggered; and running condition of the first timer and / or number of radio link control RLC retransmissions when the CHO or CPAC is performed or when the CHO or CPAC is successful.

6. The method of claim 5, wherein, The network side device comprises one of the following: a network management function; a trace collection entity; a base station.

7. The method of claim 5, wherein, The step of reporting the CHO or CPAC related information to the network side device comprises: sending an RRC reestablishment request message or a radio link failure report in a connected state or in the process of transitioning to a connected state, wherein the RRC reestablishment request message or the radio link failure report comprises the CHO or CPAC related information; alternatively, sending a message A in the process of performing 2-step random access in a target cell, wherein the message A comprises the CHO or CPAC related information.

8. The method of claim 5, wherein, The step of reporting the CHO or CPAC related information to the network side device comprises: receiving a first request sent by the network side device, and reporting the CHO or CPAC related information to the network side device according to the first request; alternatively, actively reporting the CHO or CPAC related information to the network side device; alternatively, sending a notification message indicating that the terminal has the CHO or CPAC related information, receiving a second request sent by the network side device, and reporting the CHO or CPAC related information to the network side device according to the second request.

9. A network side device (800), characterized in that, comprise: a processor (801), a memory (803), and a program stored in the memory and executable on the processor (801), wherein the program is executed by the processor (801) to implement the steps of the method according to any one of claims 1 to 4.

10. A terminal (900), characterized by comprise: a processor (910), a memory (909), and a program stored on the memory (909) and run on the processor (910), which, when executed by the processor (910), implements the steps of the method of any one of claims 5 to 8.

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