CONFIGURATION OPTIMIZATION METHOD, APPARATUS, DEVICE, AND READABLE STORAGE MEDIUM - Patent application

Abstract

The embodiments of the present application provide a method and apparatus for optimizing a configuration, a device, and a readable storage medium. The method for optimizing the configuration includes a network side device configuring a terminal to report related information of a conditional handover (CHO) or a conditional primary secondary cell addition or change (CPAC). In one embodiment, the related information of the CHO or CPAC includes that a radio link management (RLM) of the terminal discovers that a physical layer of a serving cell is at risk of being out of sync, or that a radio link is at risk of failure, or that a first timer is started before or when the CHO or CPAC is performed, or when the CHO or CPAC is successful.

Description

[Technical Field]

[0001] (CROSS-REFERENCE TO RELATED APPLICATIONS) This application is filed based on and claims priority to a Chinese patent application having application number 202110301986.6 and filing date March 22, 2021, the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the field of communications technology, and in particular to a configuration optimization method and apparatus, a device, and a readable storage medium. [Background technology]

[0003] Conditional handover (CHO) is a mechanism for enhancing the robustness of handover (HO) or secondary node addition. To solve the problem of a terminal (e.g., user equipment (UE)) being unable to successfully complete a handover or secondary node addition process due to sudden channel degradation (especially at high frequencies) between the terminal (e.g., user equipment) and the serving cell, a base station can configure the UE to trigger a measurement report at a relatively low threshold, and convey a relatively high handover trigger threshold and a random access resource to be used by the UE in the target cell in a handover command or secondary node addition command. When the handover threshold is met, the UE initiates a random access process to the target base station or cell. Referring to FIG. 1, a source base station or cell can configure a UE with CHO for multiple target cells.

[0004] After a Radio Link Failure (RLF) occurs in the serving cell, the UE performs cell selection (the UE selects a cell that meets the residency threshold to reside in), and if the selected cell is a CHO candidate cell configured by the network cell and the network side configures the UE to attempt CHO after RLF, the UE can attempt CHO again; otherwise, the UE performs a re-establishment process.

[0005] Similarly, in the conditional PSCell addition / change (CPAC), the network side master node (MN) or secondary node (SN) transmits the conditions for adding or changing a primary secondary cell (PSCell) to the UE in advance, and if the UE determines through measurement that the target PSCell meets the conditions, the UE autonomously performs the PSCell addition or change process. If CPAC fails, the network side can also configure the UE to try other CPAC candidate cells.

[0006] After the source base station configures CHO or CPAC for the UE, various situations may occur in the UE, and the UE may try to access the target cell using the CHO resource. After the UE is successfully connected to the target cell, the network side cannot distinguish the situation through which the UE accessed the network, and therefore cannot optimize the handover configuration (setting) and / or random access configuration (setting). Summary of the Invention [Means for solving the problem]

[0007] The embodiments of the present application provide a method and apparatus for optimizing a configuration, an apparatus, and a readable storage medium.

[0008] In a first aspect, an embodiment of the present application provides a method for optimizing a configuration, performed by a network side device, the method for optimizing a configuration comprising: configuring a terminal to report CHO or CPAC related information, wherein the CHO or CPAC related information is used to optimize handover configuration and / or random access configuration; The relevant information of the CHO or CPAC is: Before or when CHO or CPAC is performed, or when CHO or CPAC is successful, the terminal Radio Link Management (RLM) discovers that there is a risk of desynchronization in the physical layer of the serving cell, or that there is a risk of radio link failure, or that a first timer is started; configured CHO or CPAC event trigger conditions, After RLF or CHO failure occurs in the terminal, cell selection is performed and a CHO candidate cell is selected; When RLF occurs in the master cell group (MCG) of the terminal, the configured CPAC event trigger status; Radio Resource Management (RRM) measurements of a serving cell and / or a neighboring cell measured by the terminal when the first timer is started; the time difference between the start of the first timer and the receipt of a CHO or CPAC configuration; When CHO or CPAC is performed, or when CHO or CPAC is successful, the timing status of the first timer and / or the number of radio link control (RLC) retransmissions; CHO or CPAC candidate cell identifiers (IDs) configured by the network side, corresponding events, and / or thresholds or offsets corresponding to said events; Random access information configured in the terminal by the cell in which the CHO or CPAC failure occurred; The time difference from the configuration of CHO or CPAC until the terminal successfully completes random access or successfully completes a radio resource control (RRC) connection in the target cell; time information corresponding to the relevant information of the CHO or CPAC; Location information of the terminal corresponding to the relevant information of the CHO or CPAC; and and measurement results of the wireless network corresponding to the relevant information of the CHO or CPAC.

[0009] In the above solution, the event trigger conditions for the configured CHO or CPAC are: None of the configured CHOs or CPACs are triggered; The configured CHO or CPAC will only be triggered by one event, Events triggered by a configured CHO or CPAC, and Whether a configured CHO or CPAC event is triggered.

[0010] In the above solution, when RLF occurs in the MCG of the terminal, the event trigger situation of the configured CPAC is: configured CPACs are not triggered, The configured CPAC will only trigger one event, Events triggered by configured CPACs, Whether the configured CPAC event is triggered.

[0011] In the above solution, the method for optimizing the configuration further comprises: receiving information related to the CHO or CPAC reported by the terminal; and performing a conditional handover configuration optimization process and / or a random access configuration optimization process based on the relevant information of the CHO or CPAC.

[0012] In the above solution, performing a conditional handover configuration optimization process and / or a random access configuration optimization process based on the relevant information of the CHO or CPAC includes: and performing a conditional handover configuration optimization process and / or a random access configuration optimization process based on the relevant information of the CHO or CPAC and one or more of a random access report, a radio link failure report, and the location of the terminal.

[0013] In the above solution, receiving the relevant information of the CHO or CPAC reported by the terminal includes: receiving an RRC re-establishment request message or a radio link failure report sent by the terminal in a connected state or during a process of transitioning to a connected state, wherein the RRC re-establishment request message or the radio link failure report includes information related to the CHO or CPAC; or receiving a message A sent by the terminal during a process of performing two-step random access in a target cell, where the message A includes relevant information of the CHO or CPAC.

[0014] In the above solution, receiving the relevant information of the CHO or CPAC reported by the terminal includes: sending a first request to the terminal; receiving information related to the CHO or CPAC reported by the terminal based on the first request; or receiving relevant information of the CHO or CPAC actively reported by the terminal; or receiving a notification message sent by the terminal, the notification message indicating that the terminal has relevant information of the CHO or CPAC; sending a second request to the terminal based on the notification message; receiving information related to the CHO or CPAC reported by the terminal based on the second request.

[0015] In a second aspect, an embodiment of the present application provides a method for optimizing a configuration, performed by a terminal, the method for optimizing a configuration comprising: Reporting relevant information of the CHO or CPAC to the network side device, The relevant information of the CHO or CPAC is: The terminal RLM discovers that there is a risk of desynchronization in the physical layer of the serving cell, or that there is a risk of failure in the radio link, or that a first timer has been started, before or when CHO or CPAC is performed, or when CHO or CPAC is successful; configured CHO or CPAC event trigger conditions, After RLF or CHO failure occurs in the terminal, cell selection is performed and a CHO candidate cell is selected; When RLF occurs in the MCG of the terminal, the event trigger status of the configured CPAC; RRM measurement values ​​of a serving cell and / or a neighboring cell measured by the terminal when the first timer is started; the time difference between the start of the first timer and the receipt of a CHO or CPAC configuration; When CHO or CPAC is performed, or when CHO or CPAC is successful, the timing status of the first timer and / or the number of radio link control (RLC) retransmissions; CHO or CPAC candidate cell identifiers (IDs) configured by the network side, corresponding events, and / or thresholds or offsets corresponding to said events; Random access information configured in the terminal by the cell in which the CHO or CPAC failure occurred; The time difference from the configuration of CHO or CPAC until the terminal successfully completes random access or successfully completes a radio resource control (RRC) connection in the target cell; time information corresponding to the relevant information of the CHO or CPAC; Location information of the terminal corresponding to the relevant information of the CHO or CPAC; and and measurement results of the wireless network corresponding to the relevant information of the CHO or CPAC.

[0016] In the above solution, the event trigger conditions for the configured CHO or CPAC are: None of the configured CHOs or CPACs are triggered; The configured CHO or CPAC will only be triggered by one event, Events triggered by a configured CHO or CPAC, and Whether a configured CHO or CPAC event is triggered.

[0017] In the above solution, when RLF occurs in the MCG of the terminal, the event trigger situation of the configured CPAC is: configured CPACs are not triggered, The configured CPAC will only trigger one event, Events triggered by configured CPACs, Whether the configured CPAC event is triggered.

[0018] In the above solution, the method for optimizing the configuration further comprises: Obtaining configuration information of the network-side device, wherein the configuration information is used to configure the terminal to report the related information of the CHO or CPAC.

[0019] In the above solution, the network side device The network management function includes one of a network management function, a trace collection entity, and a base station.

[0020] In the above solution, reporting the CHO or CPAC related information to the network side device is: Sending an RRC re-establishment request message or a radio link failure report in a connected state or during the process of transitioning to a connected state, wherein the RRC re-establishment request message or the radio link failure report includes information related to the CHO or CPAC; or The method includes sending a message A during a process of performing two-step random access in a target cell, where the message A includes relevant information of the CHO or CPAC.

[0021] In the above solution, reporting the CHO or CPAC related information to the network side device is: receiving a first request sent by the network side device; Reporting information related to the CHO or CPAC to the network side device based on the first request; or including proactively reporting relevant information of the CHO or CPAC to the network side device; or Sending a notification message, the notification message indicating that the terminal has relevant information of the CHO or CPAC; receiving a second request sent by the network side device; and reporting related information of the CHO or CPAC to the network side device based on the second request.

[0022] In a third aspect, an embodiment of the present application provides an apparatus for optimizing a configuration applied to a network side device, the apparatus for optimizing the configuration comprising: a configuration module configured to configure the terminal to report relevant information of the CHO or CPAC; The relevant information of the CHO or CPAC is: The terminal RLM discovers that there is a risk of desynchronization in the physical layer of the serving cell, or that there is a risk of failure in the radio link, or that a first timer has been started, before or when CHO or CPAC is performed, or when CHO or CPAC is successful; configured CHO or CPAC event trigger conditions, After RLF or CHO failure occurs in the terminal, cell selection is performed and a CHO candidate cell is selected; When RLF occurs in the MCG of the terminal, the event trigger status of the configured CPAC; RRM measurement values ​​of a serving cell and / or a neighboring cell measured by the terminal when the first timer is started; the time difference between the start of the first timer and the receipt of a CHO or CPAC configuration; When CHO or CPAC is performed, or when CHO or CPAC is successful, the timing status of the first timer and / or the number of radio link control (RLC) retransmissions; CHO or CPAC candidate cell identifiers (IDs) configured by the network side, corresponding events, and / or thresholds or offsets corresponding to said events; Random access information configured in the terminal by the cell in which the CHO or CPAC failure occurred; The time difference from the configuration of CHO or CPAC until the terminal successfully completes random access or successfully completes a radio resource control (RRC) connection in the target cell; time information corresponding to the relevant information of the CHO or CPAC; Location information of the terminal corresponding to the relevant information of the CHO or CPAC; and and measurement results of the wireless network corresponding to the relevant information of the CHO or CPAC.

[0023] In a fourth aspect, an embodiment of the present application provides an apparatus for optimizing a configuration applied to a terminal, the apparatus for optimizing the configuration comprising: a reporting module configured to report information related to the CHO or the CPAC to a network side device; The relevant information of the CHO or CPAC is: The terminal RLM discovers that there is a risk of desynchronization in the physical layer of the serving cell, or that there is a risk of failure in the radio link, or that a first timer has been started, before or when CHO or CPAC is performed, or when CHO or CPAC is successful; configured CHO or CPAC event trigger conditions, After RLF or CHO failure occurs in the terminal, cell selection is performed and a CHO candidate cell is selected; When RLF occurs in the MCG of the terminal, the event trigger status of the configured CPAC; RRM measurement values ​​of a serving cell and / or a neighboring cell measured by the terminal when the first timer is started; the time difference between the start of the first timer and the receipt of a CHO or CPAC configuration; When CHO or CPAC is performed, or when CHO or CPAC is successful, the timing status of the first timer and / or the number of radio link control (RLC) retransmissions; CHO or CPAC candidate cell identifiers (IDs) configured by the network side, corresponding events, and / or thresholds or offsets corresponding to said events; Random access information configured in the terminal by the cell in which the CHO or CPAC failure occurred; The time difference from the configuration of CHO or CPAC until the terminal successfully completes random access or successfully completes a radio resource control (RRC) connection in the target cell; time information corresponding to the relevant information of the CHO or CPAC; Location information of the terminal corresponding to the relevant information of the CHO or CPAC; and and measurement results of the wireless network corresponding to the relevant information of the CHO or CPAC.

[0024] In a fifth aspect, an embodiment of the present application provides a network side device, the network side device including a processor, a memory, and a program stored in the memory and executable by the processor, the program realizing the steps of the method according to the first aspect when executed by the processor.

[0025] In a sixth aspect, an embodiment of the present application provides a terminal, the terminal including a processor, a memory, and a program stored in the memory and executable by the processor, the program, when executed by the processor, implementing steps of the method according to the second aspect.

[0026] In a seventh aspect, an embodiment of the present application provides a readable storage medium having a program stored therein, the program realizing the steps of the method according to the first or second aspect when executed by a processor.

[0027] In an embodiment of the present application, the network side equipment can configure the terminal to report information related to CHO or CPAC, and in this way, the terminal can report information related to CHO or CPAC, so that the network side equipment can perform an optimization process for a conditional handover configuration and / or an optimization process for a random access configuration. The present invention provides, for example, the following items. (Item 1) A method for optimizing a configuration executed by a network side device, comprising: configuring a terminal to report conditional handover (CHO) or conditional primary secondary cell addition or change (CPAC) related information; The relevant information of the CHO or CPAC is: Before or when CHO or CPAC is performed, or when CHO or CPAC is successful, it is discovered by a radio link management (RLM) of the terminal that there is a risk of desynchronization in the physical layer of the serving cell, or that there is a risk of radio link failure, or that a first timer has been started; configured CHO or CPAC event trigger conditions, performing cell selection after a radio link failure (RLF) or a CHO failure occurs in the terminal, and selecting a candidate cell for CHO; When RLF occurs in the master cell group (MCG) of the terminal, the configured CPAC event trigger status; Radio resource management (RRM) measurements of a serving cell and / or a neighboring cell measured by the terminal when the first timer is started; the time difference between the start of the first timer and the receipt of a CHO or CPAC configuration; When CHO or CPAC is performed, or when CHO or CPAC is successful, the timing status of the first timer and / or the number of radio link control (RLC) retransmissions; CHO or CPAC candidate cell identifiers (IDs) configured by the network side, corresponding events, and / or thresholds or offsets corresponding to said events; Random access information configured in the terminal by the cell in which the CHO or CPAC failure occurred; The time difference from the configuration of CHO or CPAC until the terminal successfully completes random access or successfully completes a radio resource control (RRC) connection in the target cell; time information corresponding to the relevant information of the CHO or CPAC; Location information of the terminal corresponding to the relevant information of the CHO or CPAC; and and measurement results of the wireless network corresponding to the relevant information of the CHO or CPAC. (Item 2) The configured CHO or CPAC event trigger conditions are: None of the configured CHOs or CPACs are triggered; The configured CHO or CPAC will only be triggered by one event, Events triggered by a configured CHO or CPAC, and whether a configured CHO or CPAC event is triggered; A method for optimizing the configuration described in item 1. (Item 3) When RLF occurs in the MCG of the terminal, the configured CPAC event trigger status is: configured CPACs are not triggered, The configured CPAC will only trigger one event, Events triggered by configured CPACs, Whether the configured CPAC event is triggered, A method for optimizing the configuration described in item 1. (Item 4) The method for optimizing the configuration further comprises: receiving information related to the CHO or CPAC reported by the terminal; According to the related information of the CHO or CPAC, performing a conditional handover configuration optimization process and / or a random access configuration optimization process; A method for optimizing the configuration described in item 1. (Item 5) Receiving information related to a CHO or CPAC reported by the terminal includes: Receiving an RRC re-establishment request message or a radio link failure report sent by the terminal in a connected state or during a process of transitioning to a connected state, wherein the RRC re-establishment request message or the radio link failure report includes information related to the CHO or CPAC; or receiving a message A sent by the terminal during a process of performing two-step random access in a target cell, the message A including relevant information of the CHO or CPAC; A method for optimizing the configuration described in item 1. (Item 6) Receiving information related to a CHO or CPAC reported by the terminal includes: sending a first request to the terminal; receiving information related to the CHO or CPAC reported by the terminal based on the first request; or receiving relevant information of the CHO or CPAC actively reported by the terminal; or receiving a notification message sent by the terminal, the notification message indicating that the terminal has relevant information of the CHO or CPAC; sending a second request to the terminal based on the notification message; receiving information related to the CHO or CPAC reported by the terminal based on the second request; A method for optimizing the configuration described in item 1. (Item 7) 1. A method for optimizing a configuration, performed by a terminal, comprising: Reporting relevant information of the CHO or CPAC to the network side device, The relevant information of the CHO or CPAC is: The terminal RLM discovers that there is a risk of desynchronization in the physical layer of the serving cell, or that there is a risk of failure in the radio link, or that a first timer has been started, before or when CHO or CPAC is performed, or when CHO or CPAC is successful; configured CHO or CPAC event trigger conditions, After RLF or CHO failure occurs in the terminal, cell selection is performed and a CHO candidate cell is selected; When RLF occurs in the MCG of the terminal, the event trigger status of the configured CPAC; RRM measurement values ​​of a serving cell and / or a neighboring cell measured by the terminal when the first timer is started; the time difference between the start of the first timer and the receipt of a CHO or CPAC configuration; When CHO or CPAC is performed, or when CHO or CPAC is successful, the timing status of the first timer and / or the number of radio link control (RLC) retransmissions; CHO or CPAC candidate cell identifiers (IDs) configured by the network side, corresponding events, and / or thresholds or offsets corresponding to said events; Random access information configured in the terminal by the cell in which the CHO or CPAC failure occurred; The time difference from the configuration of CHO or CPAC until the terminal successfully completes random access or successfully completes a radio resource control (RRC) connection in the target cell; time information corresponding to the relevant information of the CHO or CPAC; Location information of the terminal corresponding to the relevant information of the CHO or CPAC; and and measurement results of the wireless network corresponding to the relevant information of the CHO or CPAC. (Item 8) The configured CHO or CPAC event trigger conditions are: None of the configured CHOs or CPACs are triggered; The configured CHO or CPAC will only be triggered by one event, Events triggered by a configured CHO or CPAC, and whether a configured CHO or CPAC event is triggered; A method for optimizing the configuration described in item 7. (Item 9) When RLF occurs in the MCG of the terminal, the configured CPAC event trigger status is: configured CPACs are not triggered, The configured CPAC will only trigger one event, Events triggered by configured CPACs, Whether the configured CPAC event is triggered, A method for optimizing the configuration described in item 7. (Item 10) The method for optimizing the configuration further comprises: obtaining configuration information of the network side device, wherein the configuration information is used to configure the terminal to report related information of the CHO or CPAC; A method for optimizing the configuration described in item 7. (Item 11) The network side device a network management function, a trace collection entity, and a base station; A method for optimizing the configuration described in item 7. (Item 12) Reporting the CHO or CPAC related information to the network side device includes: Sending an RRC re-establishment request message or a radio link failure report in a connected state or during the process of transitioning to a connected state, wherein the RRC re-establishment request message or the radio link failure report includes information related to the CHO or CPAC; or Sending a message A during a two-step random access process in a target cell, the message A including relevant information of the CHO or CPAC; A method for optimizing the configuration described in item 7. (Item 13) Reporting the CHO or CPAC related information to the network side device includes: receiving a first request sent by the network side device; Reporting information related to the CHO or CPAC to the network side device based on the first request; or including proactively reporting relevant information of the CHO or CPAC to the network side device; or Sending a notification message, the notification message indicating that the terminal has relevant information of the CHO or CPAC; receiving a second request sent by the network side device; and reporting related information of the CHO or CPAC to the network side device based on the second request. A method for optimizing the configuration described in item 7. (Item 14) A configuration optimization device applied to a network side device, comprising: a configuration module configured to configure the terminal to report relevant information of the CHO or CPAC; The relevant information of the CHO or CPAC is: The terminal RLM discovers that there is a risk of desynchronization in the physical layer of the serving cell, or that there is a risk of failure in the radio link, or that a first timer has been started, before or when CHO or CPAC is performed, or when CHO or CPAC is successful; configured CHO or CPAC event trigger conditions, After RLF or CHO failure occurs in the terminal, cell selection is performed and a CHO candidate cell is selected; When RLF occurs in the MCG of the terminal, the event trigger status of the configured CPAC; RRM measurement values ​​of a serving cell and / or a neighboring cell measured by the terminal when the first timer is started; the time difference between the start of the first timer and the receipt of a CHO or CPAC configuration; When CHO or CPAC is performed, or when CHO or CPAC is successful, the timing status of the first timer and / or the number of radio link control (RLC) retransmissions; CHO or CPAC candidate cell identifiers (IDs) configured by the network side, corresponding events, and / or thresholds or offsets corresponding to said events; Random access information configured in the terminal by the cell in which the CHO or CPAC failure occurred; The time difference from the configuration of CHO or CPAC until the terminal successfully completes random access or successfully completes a radio resource control (RRC) connection in the target cell; time information corresponding to the relevant information of the CHO or CPAC; Location information of the terminal corresponding to the relevant information of the CHO or CPAC; and and measurement results of the wireless network corresponding to the relevant information of the CHO or CPAC. (Item 15) A configuration optimization device applied to a terminal, comprising: a reporting module configured to report information related to the CHO or the CPAC to a network side device; The relevant information of the CHO or CPAC is: The terminal RLM discovers that there is a risk of desynchronization in the physical layer of the serving cell, or that there is a risk of failure in the radio link, or that a first timer has been started, before or when CHO or CPAC is performed, or when CHO or CPAC is successful; configured CHO or CPAC event trigger conditions, After RLF or CHO failure occurs in the terminal, cell selection is performed and a CHO candidate cell is selected; When RLF occurs in the MCG of the terminal, the event trigger status of the configured CPAC; RRM measurement values ​​of a serving cell and / or a neighboring cell measured by the terminal when the first timer is started; the time difference between the start of the first timer and the receipt of a CHO or CPAC configuration; When CHO or CPAC is performed, or when CHO or CPAC is successful, the timing status of the first timer and / or the number of radio link control (RLC) retransmissions; CHO or CPAC candidate cell identifiers (IDs) configured by the network side, corresponding events, and / or thresholds or offsets corresponding to said events; Random access information configured in the terminal by the cell in which the CHO or CPAC failure occurred; The time difference from the configuration of CHO or CPAC until the terminal successfully completes random access or successfully completes a radio resource control (RRC) connection in the target cell; time information corresponding to the relevant information of the CHO or CPAC; Location information of the terminal corresponding to the relevant information of the CHO or CPAC; and and measurement results of the wireless network corresponding to the relevant information of the CHO or CPAC. (Item 16) A network side device comprising: a processor; a memory; and a program stored in the memory and executable by the processor, the network side device realizing the steps of the method according to any one of items 1 to 6 when the program is executed by the processor. (Item 17) A terminal including a processor, a memory, and a program stored in the memory and executable by the processor, the terminal realizing the steps of the method according to any one of items 7 to 13 when the program is executed by the processor. (Item 18) A readable storage medium storing a program that, when executed by a processor, implements the steps of the method according to any one of items 1 to 13. [Brief explanation of the drawings]

[0028] [Figure 1] 1 is a schematic flow chart of CHO.

[0029] [Figure 2] 1 is a schematic diagram of a wireless communication system applicable to an embodiment of the present application;

[0030] [Figure 3] 1 is a first flowchart of a method for optimizing a configuration according to an embodiment of the present application.

[0031] [Figure 4] 1 is a second flowchart of a method for optimizing a configuration according to an embodiment of the present application.

[0032] [Figure 5] 10 is a third flowchart of a method for optimizing a configuration according to an embodiment of the present application.

[0033] [Figure 6] 1 is a first schematic diagram of a configuration optimization apparatus according to an embodiment of the present application;

[0034] [Figure 7] FIG. 2 is a second schematic diagram of a configuration optimization apparatus according to an embodiment of the present application.

[0035] [Figure 8] FIG. 1 is a schematic diagram of a network-side device according to an embodiment of the present application;

[0036] [Figure 9] 1 is a schematic diagram of a terminal according to an embodiment of the present application; DETAILED DESCRIPTION OF THE INVENTION

[0037] Various other advantages and merits will become apparent to those skilled in the art upon reading the following detailed description of several embodiments. The drawings are for purposes of illustrating several embodiments only and are not to be construed as limiting the present application. Like reference numerals represent like parts throughout the drawings.

[0038] Hereinafter, the technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments, and all other embodiments obtained by those skilled in the art based on the embodiments of the present application without any creative efforts belong to the protection scope of the present application.

[0039] The term "comprises" and any variations thereof in the specification and claims of this application are intended to cover a non-exclusive inclusion. For example, a process, method, system, product, or apparatus comprising a series of steps or units is not limited to those steps or units explicitly recited, but may include other steps or units not explicitly recited or inherent to such process, method, product, or apparatus. Also, the specification and claims use "and / or" to denote at least one of the connected objects. For example, A and / or B indicates three situations: A alone exists, B alone exists, or both A and B exist.

[0040] In the examples of the present application, terms such as "exemplary" or "for example" are used as examples, examples, or illustrations. Any embodiment or design scheme described in the examples of the present application as "exemplary" or "for example" should not be construed as preferred or more advantageous than other embodiments or design schemes. Rather, the use of terms such as "exemplary" or "for example" is intended to concretely present the associated concept.

[0041] It should be noted that the technology described in the embodiments of the present application is not limited to Long Time Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be applied to 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 the embodiments of the present application are always used interchangeably. The described technology is not only applicable to the above-mentioned systems and wireless technologies, but also to other systems and wireless technologies. However, in the following description, New Radio (NR) systems are described as examples, and NR terminology is used in much of the following description, but these techniques are also applicable to applications other than NR system applications, such as 6th Generation (6G) communication systems.

[0042] Referring to FIG. 2, a block diagram of a wireless communication system applicable to an embodiment of the present application is shown. The wireless communication system includes a terminal 21 and a network side device 22. Here, the terminal 21 may be referred to as a terminal equipment or UE. The terminal 21 may be a terminal side device such as a mobile phone, a tablet personal computer, a laptop computer or notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), a wearable device or vehicle user equipment (VUE), or a pedestrian user equipment (PUE). Examples of wearable devices include bracelets, earphones, glasses, etc. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 21. The network side equipment 22 may be a base station or a core network, where the base station may be called a Node B, an E-Node B, an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a B node, an E-Node B (eNB), a home B node, an E-Home Node B, a wireless local area network (WLAN) access point, a WiFi node, a transmitting and receiving point (TRP), or other suitable terms in the field. As long as the same technical effect is achieved, the base station is not limited to a specific technical term.It should be noted that the embodiments of the present application only take base stations in an NR system as examples, but do not limit the specific type of base station.

[0043] 3, an embodiment of the present application provides a method for optimizing a configuration, and the method is performed by a network-side device such as a network management function, a trace collection entity (TCE), or a base station. Specific steps of the method include step 301.

[0044] In step 301, a terminal is configured to report CHO or CPAC related information, and the CHO or CPAC related information is used to optimize handover configuration and / or random access configuration.

[0045] In one embodiment of the present application, the method shown in FIG. receiving information related to the CHO or CPAC reported by the terminal; The method may further include performing a conditional handover configuration optimization process and / or a random access configuration optimization process based on the related information of the CHO or CPAC.

[0046] In one embodiment of the present application, the relevant information of the CHO or CPAC includes one or more of the following:

[0047] (1) The terminal RLM discovers that there is a risk of desynchronization in the physical layer of the serving cell, or that there is a risk of failure in the radio link, or that the first timer has been started, before or when CHO or CPAC is executed, or when CHO or CPAC is successful.

[0048] For example, the first timer may be a T310 timer.

[0049] (2) In the case of the RLF of the terminal, none of the configured CHO or CPAC is triggered, or only one event is triggered, or the triggered event or events are triggered or not (for example, CHO or CPAC can configure an A5 event and an A3 event, and only the A5 event or the A3 event is triggered, or CHO or CPAC can configure an A4 event and a B1 event, and only the A4 event or the A3 event is triggered, or the triggered event is A3 or A5 or A4 or B1, or the A3 event is triggered and / or the A5 event is triggered, or whether A3 is triggered and / or whether B1 is triggered, etc.). Here, the A3, A5, A4, and B1 events can be further represented by the first event or the second event of CHO or CPAC. That is, the event trigger status of the configured CHO or CPAC.

[0050] (3) After an RLF or CHO failure occurs in the terminal, cell selection is performed and a candidate cell for CHO is selected. For example, a 1-bit bit indicates that a cell selection is performed and a candidate cell for CHO is selected after an RLF or CHO failure occurs in the terminal, or the UE reports an identifier of the selected candidate cell by performing cell selection.

[0051] (4) When RLF occurs in the MCG in the terminal, the configured CPAC is not triggered, or only one event is triggered, or the triggered event or events are triggered (for example, CPAC can configure an A5 event and an A3 event, and only the A5 event or the A3 event is triggered, or CPAC can configure an A4 event and a B1 event, and only the A4 event or the A3 event is triggered, or the triggered event is A3 or A5 or A4 or B1, or the A3 event is triggered and / or the A5 event is triggered, or whether A3 is triggered and / or whether B1 is triggered, etc.). Here, the A3, A5, A4, and B1 events can be further represented by the first event or the second event of CPAC. That is, the event trigger status of the configured CPAC when RLF occurs in the MCG in the terminal.

[0052] (5) RRM measurement values ​​of the serving cell and / or neighboring cell measured by the terminal when the first timer is started.

[0053] Here, the RRM measurements may be at the beam level or at the cell level.

[0054] (6) The time difference between the start of the first timer and the receipt of a CHO or CPAC configuration.

[0055] (7) When CHO or CPAC is performed, or when CHO or CPAC is successful, the timing status of the first timer (e.g., how much has been timed, i.e., the length of the timed interval) and / or the number of RLC retransmissions.

[0056] (8) CHO or CPAC candidate cell IDs configured by the network side, corresponding events, and / or thresholds or offsets corresponding to the events.

[0057] Here, the event may include one or more of: (1) an A3 event, (2) an A5 event, (3) an A4 event, and (4) a B1 event, i.e., a CHO or CPAC candidate cell ID configured by the network side, a corresponding A3 event, or a corresponding A5 event, or a corresponding A4 event, or a corresponding B1 event, or a corresponding A3 event and an A5 event.

[0058] Here, the threshold or offset may include one or more of an offset for an A3 event (which may be represented as a3-offset), a threshold 1 for an A5 event (which may be represented as a5-Threshold1), a threshold 2 for an A5 event (which may be represented as a5-Threshold2), a threshold for an A4 event (which may be represented as a4-Threshold), a threshold for a B1 event (which may be represented as b1-Threshold), a hysteresis, and a trigger time (which may be represented as TimeToTrigger).

[0059] (9) Random access information configured in the terminal by the cell where the CHO or CPAC failure occurred.

[0060] For example, two-step non-contention random access or contention-based random access (which can be represented as 2-step CFRA / CBRA), four-step non-contention random access or contention-based random access (which can be represented as 4-step CFRA / CBRA), and further, in the case of two-step random access, whether it can fall back to four-step random access (which can be represented as fallback), or the maximum number of two-step random access attempts that can be made before falling back to four-step random access.

[0061] (10) The time difference between the configuration of CHO or CPAC and the terminal successfully completing random access in the target cell (UE sending an RRC Setup Request message in the target cell) or successfully completing the RRC connection (RRC Setup Complete or RRC Reconfiguration Complete message sent by the UE in the target cell).

[0062] (11) Time information corresponding to the relevant information of the CHO or CPAC.

[0063] (12) Location information of the terminal corresponding to the relevant information of the CHO or CPAC.

[0064] (13) Measurement results of wireless networks corresponding to relevant information of CHO or CPAC.

[0065] For example, wireless network measurements include WLAN measurements and / or BLUETOOTH measurements.

[0066] Here, if the wireless link is restored while the first timer is running, the first timer is stopped; otherwise, the first timer continues to run.

[0067] In one embodiment of the present application, a conditional handover configuration optimization process and / or a random access configuration optimization process is performed based on the relevant information of the CHO or CPAC and one or more of a random access report (RA report), a radio link failure report (RLF report), and the location of the terminal.

[0068] For illustrative purposes, the following takes the first timer as T310 and the CHO scenario as an example, but other scenarios (such as the CPAC scenario) are similar, so the description is omitted here.

[0069] 1) If the configured CHO is still not triggered, the UE detects a potential physical layer out-of-synchronization, or starts T310, or an RLF occurs, which means the CHO trigger condition of the candidate cell is too strict, and the CHO trigger threshold should be lowered, for example, by lowering a3-offset and / or a5-Threshold2, lowering hysteresis and TimeToTrigger, and increasing a5-Threshold1, etc. Furthermore, if only one event is triggered, for example, A3 and A5 events are configured, but only the A3 event is triggered, which means the trigger condition of the A5 event is too strict, and the UE should lower a5-Threshold2 and / or lower hysteresis and / or TimeToTrigger, and / or increase a5-Threshold1, etc.

[0070] Furthermore, based on the time difference between the start of T310 and the reception of the CHO configuration, and / or the time length of T310, or the time difference between the triggering or execution of CHO and the start of T310, the network side can more accurately know the range of adjusting the above-mentioned parameters. For example, the longer the time length of T310 or the more RLC retransmissions, the greater the risk of RLF occurrence in the UE in the source cell, and the source base station should configure CHO earlier or reduce the triggering or execution threshold of CHO more significantly.

[0071] 2) When the UE performs cell selection and a candidate CHO cell is selected, it means that the trigger threshold corresponding to the CHO cell should be decreased so that the UE can be handed over to the cell via CHO.

[0072] 3) If the UE performs cell selection but no CHO candidate cell is selected, the cell selected by the UE may subsequently be considered as a candidate cell.

[0073] 4) When a UE experiences its first CHO failure, it can be analyzed by combining the random access information configured for the cell to determine whether the UE is not allowed to fall back from 2-step random access (RA) to 4-step random access, but has never succeeded in 2-step random access, resulting in a random access failure.

[0074] 5) From the configuration of CHO, based on the time difference between the UE successfully completing random access in the target cell (the UE sends an RRC Setup Request message in the target cell) or successfully completing RRC connection (the UE sends an RRC Setup Complete or RRC Reconfiguration Complete message in the target cell) and the configuration information of the cell RA, it can be determined whether the UE takes too long to access the target cell due to too many two-step attempts.

[0075] In one embodiment of the present application, receiving the relevant information of the CHO or CPAC reported by the terminal includes: receiving an RRC re-establishment request message or a radio link failure report sent by the terminal in a connected state or during a process of transitioning to a connected state, wherein the RRC re-establishment request message or the radio link failure report includes information related to the CHO or CPAC; or receiving a message A sent by the terminal during a process of performing two-step random access in a target cell, where the message A includes relevant information of the CHO or CPAC.

[0076] In one embodiment of the present application, receiving the related information of the CHO or CPAC reported by the terminal includes one of the following (1) to (3):

[0077] In (1), a first request is sent to the terminal, and related information of the CHO or CPAC reported by the terminal based on the first request is received.

[0078] In (2), the relevant information of the CHO or CPAC actively reported by the terminal is received.

[0079] (3) receiving a notification message sent by the terminal, the notification message indicating that the terminal has related information of the CHO or CPAC; sending a second request to the terminal based on the notification message; and receiving the related information of the CHO or CPAC reported by the terminal based on the second request.

[0080] In an embodiment of the present application, the network side equipment configures the terminal to report CHO or CPAC related information, and in this way, the network side equipment can perform a conditional handover configuration optimization process and / or a random access configuration optimization process based on the CHO or CPAC related information reported by the terminal.

[0081] Referring to FIG. 4, an embodiment of the present application provides a method for optimizing configuration, where the execution body of the method can be a terminal, and the specific steps include step 401.

[0082] In step 401, information related to CHO or CPAC is reported to a network side device, and the information related to CHO or CPAC is used to optimize handover configuration and / or random access configuration.

[0083] In one embodiment of the present application, the method shown in FIG. The method may further include obtaining configuration information of the network side device, wherein the configuration information is used to configure the terminal to report information related to the CHO or CPAC.

[0084] In one embodiment of the present application, the network side device The network management function includes one of a network management function, a trace collection entity, and a base station.

[0085] In an embodiment of the present application, the UE reports the above CHO or CPAC related information in an RRC re-establishment request message or a radio link failure report when in a connected state or during the process of transitioning to a connected state, or in message A during the process of performing two-step random access in the target cell.

[0086] In one embodiment of the present application, reporting the CHO or CPAC related information to the network side device includes: Sending an RRC re-establishment request message or a radio link failure report in a connected state or during the process of transitioning to a connected state, wherein the RRC re-establishment request message or the radio link failure report includes information related to the CHO or CPAC; or The method includes sending a message A during a process of performing two-step random access in a target cell, where the message A includes relevant information of the CHO or CPAC.

[0087] In one embodiment of the present application, reporting the CHO or CPAC related information to the network side device includes one of the following (1) to (3).

[0088] In (1), a first request sent by the network side device is received, and information related to the CHO or CPAC is reported to the network side device based on the first request.

[0089] (2) Proactively report relevant information of CHO or CPAC to the network side equipment.

[0090] (3) Send a notification message, where the notification message indicates that the terminal has information related to the CHO or CPAC, receive a second request sent by the network side device, and report the information related to the CHO or CPAC to the network side device based on the second request.

[0091] In one embodiment of the present application, the relevant information of the CHO or CPAC includes one or more of the following:

[0092] (1) The terminal RLM discovers that there is a risk of desynchronization in the physical layer of the serving cell, or that there is a risk of failure in the radio link, or that the first timer has been started, before or when CHO or CPAC is executed, or when CHO or CPAC is successful.

[0093] For example, the first timer may be a T310 timer.

[0094] (2) In the case of the RLF of the terminal, none of the configured CHO or CPAC is triggered, or only one event is triggered, or the triggered event or events are triggered or not (for example, CHO or CPAC can configure an A5 event and an A3 event, and only the A5 event or the A3 event is triggered, or CHO or CPAC can configure an A4 event and a B1 event, and only the A4 event or the A3 event is triggered, or the triggered event is A3 or A5 or A4 or B1, or the A3 event is triggered and / or the A5 event is triggered, or whether A3 is triggered and / or whether B1 is triggered, etc.). Here, the A3, A5, A4, and B1 events can be further represented by the first event or the second event of CHO or CPAC. That is, the event trigger status of the configured CHO or CPAC.

[0095] (3) After an RLF or CHO failure occurs in the terminal, cell selection is performed and a candidate cell for CHO is selected. For example, a 1-bit bit indicates that a cell selection is performed and a candidate cell for CHO is selected after an RLF or CHO failure occurs in the terminal, or the UE reports an identifier of the selected candidate cell by performing cell selection.

[0096] (4) When RLF occurs in the MCG in the terminal, the configured CPAC is not triggered, or only one event is triggered, or the triggered event or events are triggered (for example, CPAC can configure an A5 event and an A3 event, and only the A5 event or the A3 event is triggered, or CPAC can configure an A4 event and a B1 event, and only the A4 event or the A3 event is triggered, or the triggered event is A3 or A5 or A4 or B1, or the A3 event is triggered and / or the A5 event is triggered, or whether A3 is triggered and / or whether B1 is triggered, etc.). Here, the A3, A5, A4, and B1 events can be further represented by the first event or the second event of CPAC. That is, the event trigger status of the configured CPAC when RLF occurs in the MCG in the terminal.

[0097] (5) RRM measurement values ​​of the serving cell and / or neighboring cell measured by the terminal when the first timer is started.

[0098] Here, the RRM measurements may be at the beam level or at the cell level.

[0099] (6) The time difference between the start of the first timer and the receipt of a CHO or CPAC configuration.

[0100] (7) When CHO or CPAC is performed, or when CHO or CPAC is successful, the timing status of the first timer (e.g., how much time has elapsed) and / or the number of RLC retransmissions.

[0101] (8) CHO or CPAC candidate cell IDs configured by the network side, corresponding events, and / or thresholds or offsets corresponding to the events.

[0102] Here, the event may include one or more of: (1) an A3 event, (2) an A5 event, (3) an A4 event, and (4) a B1 event, i.e., a CHO or CPAC candidate cell ID configured by the network side, a corresponding A3 event, or a corresponding A5 event, or a corresponding A4 event, or a corresponding B1 event, or a corresponding A3 event and an A5 event.

[0103] Here, the threshold or offset may include one or more of an offset for an A3 event, a threshold 1 for an A5 event, a threshold 2 for an A5 event, a threshold for an A4 event, a threshold for a B1 event, a hysteresis, and a trigger time.

[0104] (9) Random access information configured in the terminal by the cell where the CHO or CPAC failure occurred.

[0105] For example, two-step non-contention random access or contention-based random access, four-step non-contention random access or contention-based random access, and in the case of two-step random access, whether it can fall back to four-step random access or the maximum number of two-step random access attempts that can be made before falling back to four-step random access.

[0106] (10) The time difference from the configuration of CHO or CPAC to the terminal successfully completing random access or successfully completing RRC connection in the target cell.

[0107] (11) Time information corresponding to the relevant information of the CHO or CPAC.

[0108] (12) Location information of the terminal corresponding to the relevant information of the CHO or CPAC.

[0109] (13) Measurement results of wireless networks corresponding to relevant information of CHO or CPAC.

[0110] For example, wireless network measurements include WLAN measurements and / or BLUETOOTH measurements.

[0111] Here, if the wireless link is restored while the first timer is running, the first timer is stopped; otherwise, the first timer continues to run.

[0112] In an embodiment of the present application, the network side device can configure the terminal to report information related to CHO or CPAC, so that the terminal can report information related to CHO or CPAC, and the network side device can perform an optimization process for a conditional handover configuration and / or an optimization process for a random access configuration. Referring to Figure 5, the specific steps of the process include steps 501 to 503.

[0113] In step 501, the network side device configures the UE to report the relevant information of the CHO or CPAC.

[0114] In step 502, the UE reports the relevant information of the CHO or CPAC to the network side device.

[0115] In step 503, the network side device performs a conditional handover configuration optimization process and / or a random access configuration optimization process based on the relevant information of the CHO or CPAC.

[0116] Referring to FIG. 6 , an embodiment of the present application provides a configuration optimization device, which is applied to a network side device such as a network management function, a TCE or a base station, and the device includes: The terminal includes a configuration module 601 configured to configure the terminal to report relevant information of the CHO or CPAC.

[0117] In one embodiment of the present application, the relevant information of the CHO or CPAC includes one or more of the following:

[0118] (1) The terminal RLM discovers that there is a risk of desynchronization in the physical layer of the serving cell, or that there is a risk of failure in the radio link, or that the first timer has been started, before or when CHO or CPAC is executed, or when CHO or CPAC is successful.

[0119] For example, the first timer may be a T310 timer.

[0120] (2) In the case of the RLF of the terminal, none of the configured CHO or CPAC is triggered, or only one event is triggered, or the triggered event or events are triggered or not (for example, CHO or CPAC can configure an A5 event and an A3 event, and only the A5 event or the A3 event is triggered, or CHO or CPAC can configure an A4 event and a B1 event, and only the A4 event or the A3 event is triggered, or the triggered event is A3 or A5 or A4 or B1, or the A3 event is triggered and / or the A5 event is triggered, or whether A3 is triggered and / or whether B1 is triggered, etc.). Here, the A3, A5, A4, and B1 events can be further represented by the first event or the second event of CHO or CPAC. That is, the event trigger status of the configured CHO or CPAC.

[0121] (3) After an RLF or CHO failure occurs in the terminal, cell selection is performed and a candidate cell for CHO is selected. For example, a 1-bit bit indicates that a cell selection is performed and a candidate cell for CHO is selected after an RLF or CHO failure occurs in the terminal, or the UE reports an identifier of the selected candidate cell by performing cell selection.

[0122] (4) When RLF occurs in the MCG in the terminal, the configured CPAC is not triggered, or only one event is triggered, or the triggered event or events are triggered (for example, CPAC can configure an A5 event and an A3 event, and only the A5 event or the A3 event is triggered, or CPAC can configure an A4 event and a B1 event, and only the A4 event or the A3 event is triggered, or the triggered event is A3 or A5 or A4 or B1, or the A3 event is triggered and / or the A5 event is triggered, or whether A3 is triggered and / or whether B1 is triggered, etc.). Here, the A3, A5, A4, and B1 events can be further represented by the first event or the second event of CPAC. That is, the event trigger status of the configured CPAC when RLF occurs in the MCG in the terminal.

[0123] (5) RRM measurement values ​​of the serving cell and / or neighboring cell measured by the terminal when the first timer is started.

[0124] Here, the RRM measurements may be at the beam level or at the cell level.

[0125] (6) The time difference between the start of the first timer and the receipt of a CHO or CPAC configuration.

[0126] (7) When CHO or CPAC is performed, or when CHO or CPAC is successful, the timing status of the first timer (e.g., how much time has elapsed) and / or the number of RLC retransmissions.

[0127] (8) CHO or CPAC candidate cell IDs configured by the network side, corresponding events, and / or thresholds or offsets corresponding to the events.

[0128] Here, the event may include one or more of: (1) an A3 event, (2) an A5 event, (3) an A4 event, and (4) a B1 event, i.e., a CHO or CPAC candidate cell ID configured by the network side, a corresponding A3 event, or a corresponding A5 event, or a corresponding A4 event, or a corresponding B1 event, or a corresponding A3 event and an A5 event.

[0129] Here, the threshold or offset may include one or more of an offset for an A3 event, a threshold 1 for an A5 event, a threshold 2 for an A5 event, a threshold for an A4 event, a threshold for a B1 event, a hysteresis, and a trigger time.

[0130] (9) Random access information configured in the terminal by the cell where the CHO or CPAC failure occurred.

[0131] For example, two-step non-contention random access or contention-based random access, four-step non-contention random access or contention-based random access, and in the case of two-step random access, whether it can fall back to four-step random access or the maximum number of two-step random access attempts that can be made before falling back to four-step random access.

[0132] (10) The time difference between the configuration of CHO or CPAC and the terminal successfully completing random access in the target cell (UE sending an RRC Setup Request message in the target cell) or successfully completing the RRC connection (RRC Setup Complete or RRC Reconfiguration Complete message sent by the UE in the target cell).

[0133] (11) Time information corresponding to the relevant information of the CHO or CPAC.

[0134] (12) Location information of the terminal corresponding to the relevant information of the CHO or CPAC.

[0135] (13) Measurement results of wireless networks corresponding to relevant information of CHO or CPAC.

[0136] For example, wireless network measurements include WLAN measurements and / or BLUETOOTH measurements.

[0137] Here, if the wireless link is restored while the first timer is running, the first timer is stopped; otherwise, the first timer continues to run.

[0138] In one embodiment of the present application, the device further comprises: a receiving module configured to receive information related to the CHO or CPAC reported by the terminal; an optimization module configured to perform a conditional handover configuration optimization process and / or a random access configuration optimization process based on the relevant information of the CHO or CPAC.

[0139] In an embodiment of the present application, the optimization module is configured to perform a conditional handover configuration optimization process and / or a random access configuration optimization process based on related information of the CHO or CPAC and one or more of a random access report, a radio link failure report, and a location of the terminal.

[0140] In one embodiment of the present application, the receiving module comprises: configured to receive an RRC re-establishment request message or a radio link failure report sent by the terminal in a connected state or during a process of transitioning to a connected state, wherein the RRC re-establishment request message or the radio link failure report includes information related to the CHO or CPAC; Or, It is configured to receive a message A sent by the terminal during a process of performing two-step random access in a target cell, where the message A includes relevant information of the CHO or CPAC.

[0141] In one embodiment of the present application, the receiving module is configured to perform one of the following (1) to (3):

[0142] In (1), a first request is sent to the terminal, and related information of the CHO or CPAC reported by the terminal based on the first request is received.

[0143] In (2), the relevant information of the CHO or CPAC actively reported by the terminal is received.

[0144] (3) receiving a notification message sent by the terminal, the notification message indicating that the terminal has related information of the CHO or CPAC; sending a second request to the terminal based on the notification message; and receiving the related information of the CHO or CPAC reported by the terminal based on the second request.

[0145] The apparatus provided by the embodiments of the present application can realize each process realized by the method embodiments shown in FIG. 3 and achieve the same technical effects, and in order to avoid duplication, the description will be omitted here.

[0146] In practical application, the configuration module 601 may be realized by a combination of a processor and a transceiver in the configuration optimization device, the receiving module may be realized by a transceiver in the configuration optimization device, and the optimization module may be realized by a processor in the configuration optimization device.

[0147] Referring to FIG. 7, an embodiment of the present application provides an apparatus 700 for optimizing a configuration applied to a terminal, the apparatus 700 comprising: The network side device includes a reporting module 701 configured to report the relevant information of the CHO or CPAC to the network side device.

[0148] In one embodiment of the present application, the device further comprises: An acquisition module configured to acquire configuration information of the network side device, the configuration information being used to configure the terminal to report related information of the CHO or CPAC.

[0149] In one embodiment of the present application, the network side device The network management function includes one of a network management function, a trace collection entity, and a base station.

[0150] In one embodiment of the present application, the reporting module 701 comprises: Sending an RRC re-establishment request message or a radio link failure report in a connected state or during the process of transitioning to a connected state, wherein the RRC re-establishment request message or the radio link failure report includes information related to the CHO or CPAC; or Sending a message A during a two-step random access process in a target cell, where the message A includes relevant information of the CHO or CPAC.

[0151] In one embodiment of the present application, the reporting module 701 performs one of the following (1) to (3).

[0152] In (1), a first request sent by the network side device is received, and information related to the CHO or CPAC is reported to the network side device based on the first request.

[0153] (2) Proactively report relevant information of CHO or CPAC to the network side equipment.

[0154] (3) Send a notification message, where the notification message indicates that the terminal has information related to the CHO or CPAC, receive a second request sent by the network side device, and report the information related to the CHO or CPAC to the network side device based on the second request.

[0155] In one embodiment of the present application, the relevant information of the CHO or CPAC includes one or more of the following:

[0156] (1) The terminal RLM discovers that there is a risk of desynchronization in the physical layer of the serving cell, or that there is a risk of failure in the radio link, or that the first timer has been started, before or when CHO or CPAC is executed, or when CHO or CPAC is successful.

[0157] For example, the first timer may be a T310 timer.

[0158] (2) In the case of the RLF of the terminal, none of the configured CHO or CPAC is triggered, or only one event is triggered, or the triggered event or events are triggered or not (for example, CHO or CPAC can configure an A5 event and an A3 event, and only the A5 event or the A3 event is triggered, or CHO or CPAC can configure an A4 event and a B1 event, and only the A4 event or the A3 event is triggered, or the triggered event is A3 or A5 or A4 or B1, or the A3 event is triggered and / or the A5 event is triggered, or whether A3 is triggered and / or whether B1 is triggered, etc.). Here, the A3, A5, A4, and B1 events can be further represented by the first event or the second event of CHO or CPAC. That is, the event trigger status of the configured CHO or CPAC.

[0159] (3) After an RLF or CHO failure occurs in the terminal, cell selection is performed and a candidate cell for CHO is selected. For example, a 1-bit bit indicates that a cell selection is performed and a candidate cell for CHO is selected after an RLF or CHO failure occurs in the terminal, or the UE reports an identifier of the selected candidate cell by performing cell selection.

[0160] (4) When RLF occurs in the MCG in the terminal, the configured CPAC is not triggered, or only one event is triggered, or the triggered event or events are triggered (for example, CPAC can configure an A5 event and an A3 event, and only the A5 event or the A3 event is triggered, or CPAC can configure an A4 event and a B1 event, and only the A4 event or the A3 event is triggered, or the triggered event is A3 or A5 or A4 or B1, or the A3 event is triggered and / or the A5 event is triggered, or whether A3 is triggered and / or whether B1 is triggered, etc.). Here, the A3, A5, A4, and B1 events can be further represented by the first event or the second event of CPAC. That is, the event trigger status of the configured CPAC when RLF occurs in the MCG in the terminal.

[0161] (5) RRM measurement values ​​of the serving cell and / or neighboring cell measured by the terminal when the first timer is started.

[0162] Here, the RRM measurements may be at the beam level or at the cell level.

[0163] (6) The time difference between the start of the first timer and the receipt of a CHO or CPAC configuration.

[0164] (7) When CHO or CPAC is performed, or when CHO or CPAC is successful, the timing status of the first timer (e.g., how much time has elapsed) and / or the number of RLC retransmissions.

[0165] (8) CHO or CPAC candidate cell IDs configured by the network side, corresponding events, and / or thresholds or offsets corresponding to the events.

[0166] Here, the event may include one or more of: (1) an A3 event, (2) an A5 event, (3) an A4 event, and (4) a B1 event, i.e., a CHO or CPAC candidate cell ID configured by the network side, a corresponding A3 event, or a corresponding A5 event, or a corresponding A4 event, or a corresponding B1 event, or a corresponding A3 event and an A5 event.

[0167] Here, the threshold or offset may include one or more of an offset for an A3 event, a threshold 1 for an A5 event, a threshold 2 for an A5 event, a threshold for an A4 event, a threshold for a B1 event, a hysteresis, and a trigger time.

[0168] (9) Random access information configured in the terminal by the cell where the CHO or CPAC failure occurred.

[0169] For example, two-step non-contention random access or contention-based random access, four-step non-contention random access or contention-based random access, and in the case of two-step random access, whether it can fall back to four-step random access or the maximum number of two-step random access attempts that can be made before falling back to four-step random access.

[0170] (10) The time difference between the configuration of CHO or CPAC and the terminal successfully completing random access in the target cell (UE sending an RRC Setup Request message in the target cell) or successfully completing the RRC connection (RRC Setup Complete or RRC Reconfiguration Complete message sent by the UE in the target cell).

[0171] (11) Time information corresponding to the relevant information of the CHO or CPAC.

[0172] (12) Location information of the terminal corresponding to the relevant information of the CHO or CPAC.

[0173] (13) Measurement results of wireless networks corresponding to relevant information of CHO or CPAC.

[0174] For example, wireless network measurements include WLAN measurements and / or BLUETOOTH measurements.

[0175] Here, if the wireless link is restored while the first timer is running, the first timer is stopped; otherwise, the first timer continues to run.

[0176] The apparatus provided by the embodiments of the present application can realize each process realized by the method embodiments shown in FIG. 4 and achieve the same technical effects, and therefore, to avoid duplication, the description will be omitted here.

[0177] In practical application, the reporting module 701 may be realized by an interface unit in the configuration optimization device, and the acquisition module may be realized by a combination of a processor and an interface unit in the configuration optimization device.

[0178] Referring to FIG. 8, FIG. 8 is a structural diagram of a network side device applied to an embodiment of the present application. As shown in FIG. 8, the network side device 800 includes a processor 801, a transceiver 802, a memory 803, and a bus interface.

[0179] In one embodiment of the present application, the network side device 800 further includes a program stored in the memory 803 and executable by the processor 801, which, when executed by the processor 801, realizes the steps of the embodiment shown in FIG. 3.

[0180] 8, the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits, such as one or more processors represented by processor 801 and memory represented by memory 803. The bus architecture may also link various other circuits, such as peripherals, voltage regulators, power management circuits, etc., which are well known in the art and will not be further described herein. The bus interface provides an interface. The transceiver 802 may be multiple elements including a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium.

[0181] The processor 801 is responsible for managing the bus architecture and normal processing, and the memory 803 may store data used by the processor 801 when performing operations.

[0182] The network-side equipment provided by the embodiments of the present application can realize each process realized by the embodiment of the method shown in Figure 3 and achieve the same technical effects, and in order to avoid duplication, the description will be omitted here.

[0183] FIG. 9 is a schematic diagram of the hardware structure of a terminal for implementing an embodiment of the present application, where the terminal 900 includes components such as, but not limited to, a radio frequency unit 901, a network module 902, an audio output unit 903, an input unit 904, a sensor 905, a display unit 906, a user input unit 907, an interface unit 908, a memory 909, and a processor 910.

[0184] As can be understood by those skilled in the art, the terminal 900 may further include a power source (such as a battery) for supplying power to each component, and the power source may be logically connected to the processor 910 via a power management system, thereby realizing management of functions such as charging, discharging, and power consumption management by the power management system. The terminal structure shown in FIG. 9 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than those shown, or may combine some components, or may have different component arrangements, which will not be described here.

[0185] It should be understood that in the embodiment of the present application, the input unit 904 may include a graphics processing unit (GPU) 9041 and a microphone 9042, and the graphics processor 9041 processes image data of still or video images captured by an image capture device (e.g., a camera) in a video capture mode or an image capture mode. The display unit 906 may include a display panel 9061, which may be configured with 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 two parts: a touch detection device and a touch controller. The other input devices 9072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control buttons, switch buttons, etc.), a trackball, a mouse, and a joystick. Further description thereof will be omitted here.

[0186] In the embodiment of the present application, the radio frequency unit 901 receives downlink data from the network side device and then sends it to the processor 910 for processing, and 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.

[0187] The memory 909 may 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, where the program or instruction storage area may store an operating system, an application program or instructions required for at least one function (such as a sound playback function, an image playback function, etc.), etc. Furthermore, the memory 909 may include high-speed random access memory and may further include non-volatile memory, where the non-volatile memory 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, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device.

[0188] The processor 910 may include one or more processing units, and the processor 910 may integrate an application processor and a modem processor, where the application processor mainly processes an operating system, a user interface, and application programs or instructions, etc., and the modem processing processor, such as a baseband processor, mainly processes wireless communication. It may be understood that the aforementioned modem processor may not be integrated into the processor 910.

[0189] The terminal provided by the embodiments of the present application can implement each process implemented by the method embodiments shown in FIG. 4 and achieve the same technical effects, and in order to avoid duplication, the description will be omitted here.

[0190] The embodiments of the present application further provide a readable storage medium on which a program or instruction is stored, which, when executed by a processor, can realize each process of the above-mentioned method embodiments shown in Figures 3 to 4 and achieve the same technical effects, and in order to avoid duplication, the description will be omitted here.

[0191] The processor may be the processor in the terminal described in the above embodiment. The readable storage medium may include a computer readable storage medium such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0192] The steps of the method or algorithm described in the present disclosure may be implemented in hardware or by a processor executing software instructions. The software instructions may be configured as corresponding software modules, which may be stored in RAM, flash memory, ROM, EPROM, EEPROM, registers, a hard disk, a removable hard disk, a read-only disk, or any other storage medium well known in the art. An exemplary storage medium is coupled to the processor, allowing the processor to read information from and write information to the storage medium. Of course, the storage medium may be a component of the processor. The processor and the storage medium may be carried in an ASIC. The ASIC may also be carried in the core network interface device. Of course, the processor and the storage medium may reside in the core network interface device as discrete components.

[0193] Those skilled in the art should appreciate that in one or more of the above examples, the functions described herein may be implemented by hardware, software, firmware, or any combination thereof. If implemented in software, the functions may be stored on or transmitted as one or more instructions or code on a computer-readable medium. Computer-readable media includes computer storage media and communication media, where communication media includes any medium that facilitates transfer of a computer program from one place to another. Storage media may be any available medium accessible by a general-purpose or special-purpose computer.

[0194] Although the above specific embodiments have further detailedly described the objectives, technical solutions and beneficial effects of the present application, it should be understood that the above are only specific embodiments of the present application and are not intended to limit the protection scope of the present application. All modifications, equivalent replacements, improvements, etc. made based on the technical solutions of the present application shall all fall within the protection scope of the present application.

[0195] Those skilled in the art should understand that the embodiments of the present application may be provided as a method, a system, or a computer program product. Therefore, the embodiments of the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Furthermore, the embodiments of the present application may take the form of a computer program product embodied in one or more computer-usable storage media (including, but not limited to, magnetic disk memory, CD-ROM, optical memory, etc.) containing computer-usable program code.

[0196] The embodiments of the present application will be described with reference to flowcharts and / or block diagrams of methods, apparatuses (systems), and computer program products according to the embodiments of the present application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and combinations of flows and / or blocks in the flowcharts 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, a special-purpose computer, an embedded processor, or other programmable data processing device to produce an apparatus, such that the instructions executed by the processor of the computer or other programmable data processing device produce an apparatus for implementing the functions specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0197] These computer program instructions may be stored on a computer-readable storage medium that can cause a computer or other programmable data processing apparatus to operate in a particular manner, such that the instructions stored on the computer-readable storage medium result in an article of manufacture that includes an instruction apparatus that implements the functions specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0198] These computer program instructions may be loaded into a computer or other programmable data processing apparatus, causing the computer or other programmable processing apparatus to perform a series of operational steps to produce a computer-implemented process, whereby the instructions executed by the computer or other programmable processing apparatus provide steps for implementing the functions specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0199] Obviously, those skilled in the art can make various modifications and variations to the embodiments of the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the embodiments of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

Claims

1. A configuration method executed by a network-side device, comprising: The configuration method includes: Configuring a terminal to report conditional handover (CHO) or conditional primary secondary cell addition or change (CPAC) related information; receiving CHO or CPAC related information reported by a terminal; performing a handover configuration optimization process and / or a random access configuration optimization process based on the relevant information of the CHO or CPAC; Including, The relevant information of the CHO or CPAC is performing cell selection after a radio link failure (RLF) or a CHO failure occurs in the terminal, and selecting a candidate cell for CHO; an event triggering status of a configured CPAC when an RLF occurs in a master cell group (MCG) of the terminal, the event triggering status of the configured CPAC including one of: the configured CPAC is not triggered; the configured CPAC has only one event triggered; an event triggered by the configured CPAC; and whether an event of the configured CPAC is triggered; the time difference between the start of the first timer and the receipt of a CHO or CPAC configuration; When CHO or CPAC is performed, or when CHO or CPAC is successful, the timing status of the first timer and / or the number of radio link control (RLC) retransmissions; Random access information configured in the terminal by the cell where the CHO or CPAC failure occurred A configuration method comprising one or more of:

2. The CHO or CPAC related information further includes an event trigger status of the configured CHO or CPAC; The configured CHO or CPAC event trigger condition is: None of the configured CHOs or CPACs are triggered; A configured CHO or CPAC can only be triggered by one event; Events triggered by a configured CHO or CPAC; Whether configured CHO or CPAC events are triggered The method of claim 1 , comprising one of:

3. The relevant information of the CHO or CPAC is before or when CHO or CPAC is performed, or when CHO or CPAC is successful, it is discovered by a radio link management (RLM) of the terminal that there is a risk of desynchronization in the physical layer of the serving cell, or that there is a risk of radio link failure, or that the first timer has been started; Radio resource management (RRM) measurements of a serving cell and / or a neighboring cell measured by the terminal when the first timer is started; CHO or CPAC candidate cell identifiers (IDs) configured by the network side, corresponding events, and / or thresholds or offsets corresponding to said events; the time difference from the configuration of CHO or CPAC until the terminal successfully completes random access or successfully completes a radio resource control (RRC) connection in the target cell; time information corresponding to the CHO or CPAC related information; Location information of the terminal corresponding to the CHO or CPAC related information, and measurement results of a wireless network corresponding to the CHO or CPAC related information. The configuration method of claim 1 , further comprising one or more of:

4. Receiving CHO or CPAC related information reported by the terminal includes: Receiving an RRC re-establishment request message or a radio link failure report sent by the terminal in a connected state or during a process of transitioning to a connected state, wherein the RRC re-establishment request message or the radio link failure report includes information related to the CHO or CPAC; or receiving a message A sent by the terminal during a process of performing two-step random access in a target cell, the message A including relevant information of the CHO or CPAC; The method of claim 1 , comprising:

5. Receiving CHO or CPAC related information reported by the terminal includes: sending a first request to the terminal; receiving CHO or CPAC related information reported by the terminal based on the first request; or receiving CHO or CPAC related information actively reported by the terminal; or receiving a notification message sent by the terminal, the notification message indicating that the terminal has relevant information of the CHO or CPAC; sending a second request to the terminal based on the notification message; receiving CHO or CPAC related information reported by the terminal based on the second request; The method of claim 1 , comprising:

6. 1. An information transmission method performed by a terminal, comprising: The information transmission method includes: Obtaining configuration information of a network side device, the configuration information being used to configure the terminal to report conditional handover (CHO) or conditional primary secondary cell addition or change (CPAC) related information; Reporting the CHO or CPAC related information to the network side device, the CHO or CPAC related information being used by the network side device to perform a handover configuration optimization process and / or a random access configuration optimization process. Including, The relevant information of the CHO or CPAC is performing cell selection after an RLF or CHO failure occurs in the terminal, and selecting a CHO candidate cell; an event triggering status of a configured CPAC when an RLF occurs in an MCG in the terminal, the event triggering status of the configured CPAC including one of: the configured CPAC is not triggered; the configured CPAC has only one event triggered; an event triggered by the configured CPAC; and whether an event of the configured CPAC is triggered; the time difference between the start of the first timer and the receipt of a CHO or CPAC configuration; When CHO or CPAC is performed, or when CHO or CPAC is successful, the timing status of the first timer and / or the number of radio link control (RLC) retransmissions; Random access information configured in the terminal by the cell where the CHO or CPAC failure occurred 1. A method of transmitting information, comprising one or more of:

7. The CHO or CPAC related information further includes an event trigger status of the configured CHO or CPAC; The configured CHO or CPAC event trigger condition is: None of the configured CHOs or CPACs are triggered; A configured CHO or CPAC can only be triggered by one event; Events triggered by a configured CHO or CPAC; Whether configured CHO or CPAC events are triggered 7. The information transmission method of claim 6, comprising one of:

8. The relevant information of the CHO or CPAC is before or when CHO or CPAC is performed, or when CHO or CPAC is successful, it is discovered by a radio link management (RLM) of the terminal that there is a risk of desynchronization in the physical layer of the serving cell, or that there is a risk of radio link failure, or that the first timer has been started; Radio resource management (RRM) measurements of a serving cell and / or a neighboring cell measured by the terminal when the first timer is started; CHO or CPAC candidate cell identifiers (IDs) configured by the network side, corresponding events, and / or thresholds or offsets corresponding to said events; the time difference from the configuration of CHO or CPAC until the terminal successfully completes random access or successfully completes a radio resource control (RRC) connection in the target cell; time information corresponding to the CHO or CPAC related information; Location information of the terminal corresponding to the relevant information of the CHO or CPAC; Measurement results of a wireless network corresponding to the relevant information of the CHO or CPAC 7. The information transmission method of claim 6, further comprising one or more of:

9. The network side device The information transmission method of claim 6, including one of a network management function, a trace collection entity, and a base station.

10. Reporting the CHO or CPAC related information to a network side device includes: Sending an RRC re-establishment request message or a radio link failure report in a connected state or during the process of transitioning to a connected state, wherein the RRC re-establishment request message or the radio link failure report includes relevant information of the CHO or CPAC; or Sending a message A during a two-step random access process in a target cell, the message A including relevant information of the CHO or CPAC.

7. The information transmission method of claim 6, comprising:

11. Reporting the CHO or CPAC related information to a network side device includes: receiving a first request sent by the network side device; reporting CHO or CPAC related information to the network side device based on the first request; or including proactively reporting relevant information of the CHO or CPAC to the network side device; or sending a notification message, the notification message indicating that the terminal has relevant information for the CHO or CPAC; receiving a second request sent by the network side device; reporting CHO or CPAC related information to the network side device based on the second request; 7. The information transmission method of claim 6, comprising:

12. a network side device including a processor and a memory, the memory storing a program executable by the processor; The network side device, wherein the program, when executed by the processor, implements the method according to any one of claims 1 to 5.

13. A terminal including a processor and a memory, wherein a program executable by the processor is stored in the memory; A terminal, wherein the program, when executed by the processor, implements the method according to any one of claims 6 to 11.

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