Wireless communication method, user equipment, electronic device, and storage medium

Abstract

This application provides a wireless communication method, user equipment, electronic device, and storage medium, relating to the field of wireless communication technology. The method includes: determining to perform Listen-Before-Speak (LBT) based on a received target instruction, whereby the target instruction instructs the UE to handover from a source cell to a first target cell in a shared spectrum network; if an LBT failure occurs during random access to the target cell, then, based on the handover result, recording LBT failure information in at least one of a Radio Link Failure (RLF) report, a Random Access Report, and a Handover Success Report. This application can assist the base station in determining whether the failure is due to inappropriate handover configuration or LBT failure, and analyze the exact cause of the handover failure or RLF, thereby obtaining accurate parameter optimization results and realizing the MRO (Maintenance, Repair, and Redirection) function of the shared spectrum network.

Description

Technical Field

[0001] This application relates to the field of wireless communication technology, and more specifically, to a wireless communication method, user equipment, electronic equipment, and storage medium. Background Technology

[0002] Mobility Robustness Optimisation (MRO) technology optimizes handover parameter configuration by analyzing Radio Link Failure (RLF) reports, thus resolving RLF or handover failures that occur during the handover process.

[0003] The 3rd Generation Partnership Project (3GPP) added the ability to access shared spectrum networks in Release 16 and added the feature of MRO (Mobile Resilience Optimization) for accessing shared spectrum networks in Release 17. Due to the differences between legacy networks and shared spectrum networks, especially shared spectrum networks where LBT (Low-Level Beta) failure may occur.

[0004] Existing MRO technology mainly targets parameter optimization for non-shared spectrum networks. However, in shared frequency band network scenarios, the content recorded in the RLF report cannot accurately pinpoint the cause of wireless link failure, which in turn affects the parameter optimization results and may even lead to errors in parameter optimization. Summary of the Invention

[0005] This application provides a wireless communication method, user equipment, electronic equipment, and storage medium that overcomes or at least partially solves the above-mentioned problems.

[0006] Firstly, a wireless communication method is provided, applied to a user terminal (UE), the method comprising:

[0007] Based on the received target instructions, determine whether to perform Listen-Before-Speak LBT;

[0008] When the target instruction is used to instruct the UE to hand over from the source cell to the first target cell in the shared spectrum network; if it is determined that an LBT failure occurs during random access to the target cell, then according to the handover result, the LBT failure information is recorded in at least one of the following reports: Radio Link Failure (RLF) report, Random Access report, and Handover Success report.

[0009] Optionally, recording LBT failure information in the Radio Link Failure (RLF) report based on the handover result includes:

[0010] If the handover result is a handover failure, the first result information is recorded in the RLF report. The first result information is that the handover failure was caused by consecutive LBT failures on all BWPs.

[0011] Optionally, recording LBT failure information in at least one of the following reports based on the handover result—the Radio Link Failure (RLF) report, the Random Access Report, and the Handover Success Report—includes:

[0012] If the handover result is a successful handover, then a second result information is recorded in at least one of the RLF report, random access report, and handover success report. The second result information is the random access information of LBT failure on at least one BWP before the successful handover.

[0013] Optionally, after recording the first result information in the RLF report, the method further includes:

[0014] Trigger Radio Resource Control (RRC) connection re-establishment to the second target cell in the shared spectrum network, and perform LBT;

[0015] If it is determined that continuous LBT failures occur on all bandwidth portions of the BWP, a third result information is recorded in the RLF report, which is that no RRC connection re-establishment request was sent due to continuous LBT failures on all BWPs.

[0016] The second target cell is the source cell, the first target cell, or a cell other than the source cell and the first target cell.

[0017] Optionally, the first result information is recorded in the RLF report using first designated identification information.

[0018] Optionally, the first result information may also include: random access information of LBT failures of the UE on all BWPs.

[0019] Optionally, the third result information may further include the terminal re-establishment cell identifier information;

[0020] The third result information is recorded in the RLF report using the second specified identification information, and the terminal re-establishment cell identification information is set to null in the second specified identification information.

[0021] Optionally, the third result information also includes the terminal re-establishment cell identifier information;

[0022] The third result information is represented by setting the cell identifier information re-established by the terminal to a null value in the second specified identifier information.

[0023] Optionally, it also includes recording at least one of the following information in at least one of the RLF report, random access report, and handover success report:

[0024] RSSI measurement results of source cell and neighboring cells;

[0025] The source cell and neighboring cells use identification information to record whether the channel is occupied.

[0026] Optionally, the random access information includes at least one of the following:

[0027] The random access channel (RACH) frequency resources used in each random access process;

[0028] At least one of the following involved in each random access process: the Synchronization Signal Block (SSB), the Downlink Reference Signal Index (CSI-RS index), and the number of random access attempts (Preambles) transmitted in the SSB and CSI-RS index;

[0029] Indication information indicating whether the cell signal quality is higher than the SSB threshold during each random access attempt in each random access procedure, and indication information indicating whether a contention-based random access procedure is detected during each random access attempt;

[0030] The two-step random access instruction indicates whether to revert to the four-step random access instruction after each attempt.

[0031] Cell signal quality measured before the 2-step random access procedure;

[0032] Before each random access, an LBT process is performed to identify whether consecutive LBT failures have occurred;

[0033] The number of times LBT failures occur during multiple random access attempts while accessing the target cell.

[0034] Optionally, when the target instruction is used to instruct the UE to perform a primary / secondary cell switch or add a primary / secondary cell, the method further includes:

[0035] If an LBT failure occurs during random access to a target primary or secondary cell, the LBT failure information is recorded in at least one of the following reports: the SCG failure message and the successful primary or secondary cell change report, based on the primary / secondary cell change result or the primary / secondary cell addition result.

[0036] Optionally, if the primary / secondary cell transition result is a primary / secondary cell transition failure, or the primary / secondary cell addition result is a primary / secondary cell addition failure, then LBT failure information is recorded in at least one of the SCG failure messages and successful primary / secondary cell transition reports, including:

[0037] The LBT failure information is recorded in the SCG failure message, and the LBT failure information includes LBT failure indication information;

[0038] The LBT failure indication information is used to indicate that the primary / secondary cell switching or the addition of a primary / secondary cell failed due to LBT failure.

[0039] Optionally, if the primary / secondary cell transition result is a primary / secondary cell transition failure, or the primary / secondary cell addition result is a primary / secondary cell addition failure, then recording LBT failure information in at least one of the SCG failure messages and successful primary / secondary cell transition reports includes:

[0040] LBT failure information is recorded in the random access information of the SCG failure message, and the LBT failure information includes at least one of the following:

[0041] This is used to indicate whether consecutive LBT failures have occurred during the LBT process before each random access attempt;

[0042] The number of times LBT failures occur during multiple random access attempts while accessing the target cell.

[0043] Optionally, if the primary / secondary cell transition result is a successful primary / secondary cell transition and a successful primary / secondary cell transition report is generated, or the primary / secondary cell addition result is a successful primary / secondary cell addition and a successful primary / secondary cell transition report is generated, then recording LBT failure information in at least one of the SCG failure messages and successful primary / secondary cell transition reports includes:

[0044] LBT failure information is recorded in the random access information section of the successful primary / secondary cell transition report, and the LBT failure information includes at least one of the following:

[0045] This is used to indicate whether consecutive LBT failures have occurred during the LBT process before each random access attempt;

[0046] The number of times LBT failures occur during multiple random access attempts while accessing the target cell.

[0047] Optionally, the number of times LBT fails during multiple random access attempts includes at least one of the following:

[0048] The number of LBT failures occurring per beam;

[0049] The total number of LBT failures occurring across all beams.

[0050] Secondly, a user equipment is provided, comprising:

[0051] The LBT module is used to determine whether to perform Listen-Before-Speak LBT based on the received target instructions.

[0052] The reporting and recording module is used to record LBT failure information in at least one of the following reports, namely Radio Link Failure (RLF) report, Random Access report, and Handover Success report, based on the handover result, if the target instruction is used to instruct the UE to hand over from the source cell to the first target cell in the shared spectrum network and it is determined that an LBT failure occurred during the random access to the target cell.

[0053] Optionally, the report recording module includes:

[0054] The first result recording unit is used to record first result information in the RLF report if the handover result is a handover failure. The first result information is that the handover failure was caused by continuous LBT failures on all BWPs.

[0055] Optionally, the report recording module includes:

[0056] The second result recording unit is used to record second result information in at least one of the RLF report, random access report and handover success report if the handover result is a successful handover. The second result information is the random access information of LBT failure on at least one BWP before the successful handover.

[0057] Optionally, the report recording module also includes:

[0058] The re-establishment trigger module is used to trigger the Radio Resource Control (RRC) connection to be re-established to the second target cell in the shared spectrum network for LBT (Local Bit Bypass).

[0059] The third result recording unit is used to record third result information in the RLF report if it is determined that continuous LBT failures occurred on all bandwidth portions of BWPs. The third result information is that no RRC connection re-establishment request was sent due to continuous LBT failures on all BWPs.

[0060] The second target cell is the source cell, the first target cell, or a cell other than the source cell and the first target cell.

[0061] Optionally, the first result information is recorded in the RLF report using first specified identification information.

[0062] Optionally, the first result information may also include: random access information of UE's LBT failures on all BWPs.

[0063] Optionally, the third result information may also include the terminal re-establishment cell identifier information;

[0064] The third result information is recorded in the RLF report using the second specified identification information, and the terminal re-establishment cell identification information is set to null in the second specified identification information.

[0065] Optionally, the third result information may also include the terminal re-establishment cell identifier information;

[0066] The third result information is represented by setting the cell identifier information re-established by the terminal to a null value in the second specified identifier information.

[0067] Optionally, the report recording module also includes:

[0068] The supplementary recording unit is used to record at least one of the following information in at least one of the RLF report, random access report, and handover success report:

[0069] RSSI measurement results of source cell and neighboring cells;

[0070] The source cell and neighboring cells use identification information to record whether the channel is occupied.

[0071] Optionally, the random access information includes at least one of the following:

[0072] The random access channel (RACH) frequency resources used in each random access process;

[0073] At least one of the following involved in each random access process: the Synchronization Signal Block (SSB), the Downlink Reference Signal Index (CSI-RS index), and the number of random access attempts (Preambles) transmitted in the SSB and CSI-RS index;

[0074] Indication information indicating whether the cell signal quality is higher than the SSB threshold during each random access attempt in each random access procedure, and indication information indicating whether a contention-based random access procedure is detected during each random access attempt;

[0075] The two-step random access instruction indicates whether to revert to the four-step random access instruction after each attempt.

[0076] Cell signal quality measured before the 2-step random access procedure;

[0077] During the LBT process before each random access, is there an identifier indicating whether consecutive LBT failures have occurred?

[0078] The number of times LBT failures occur during multiple random access attempts while accessing the target cell.

[0079] Optionally, when the target instruction is used to instruct the UE to perform a primary / secondary cell switch or add a primary / secondary cell, the user equipment further includes:

[0080] The failure recording module is used to record LBT failure information in at least one of the following reports, namely the SCG failure message and the successful primary / secondary cell change report, based on the primary / secondary cell change result or the primary / secondary cell addition result, if an LBT failure occurs during random access to the target primary / secondary cell.

[0081] Optionally, if the primary / secondary cell transformation result is a primary / secondary cell transformation failure, or the primary / secondary cell addition result is a primary / secondary cell addition failure, then the failure recording module is specifically used for:

[0082] The LBT failure information is recorded in the SCG failure message, and the LBT failure information includes LBT failure indication information;

[0083] The LBT failure indication information is used to indicate that the primary / secondary cell switching or the addition of a primary / secondary cell failed due to LBT failure.

[0084] Optionally, if the primary / secondary cell transformation result is a primary / secondary cell transformation failure, or the primary / secondary cell addition result is a primary / secondary cell addition failure, then the failure recording module is specifically used for:

[0085] LBT failure information is recorded in the random access information of the SCG failure message, and the LBT failure information includes at least one of the following:

[0086] This is used to indicate whether consecutive LBT failures have occurred during the LBT process before each random access attempt;

[0087] The number of times LBT failures occur during multiple random access attempts while accessing the target cell.

[0088] Optionally, if the primary / secondary cell transition result is a successful primary / secondary cell transition and a successful primary / secondary cell transition report is generated, or the primary / secondary cell addition result is a successful primary / secondary cell addition and a successful primary / secondary cell transition report is generated, then the failure recording module is specifically used for:

[0089] LBT failure information is recorded in the random access information section of the successful primary / secondary cell transition report, and the LBT failure information includes at least one of the following:

[0090] This is used to indicate whether consecutive LBT failures have occurred during the LBT process before each random access attempt;

[0091] The number of times LBT failures occur during multiple random access attempts while accessing the target cell.

[0092] Optionally, the number of times LBT fails during multiple random access attempts includes at least one of the following:

[0093] The number of LBT failures occurring per beam;

[0094] The total number of LBT failures occurring across all beams.

[0095] Thirdly, embodiments of this application provide a user equipment, including a memory, a transceiver, and a processor:

[0096] A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations:

[0097] Based on the received target instruction, a Listen-Before-Speak (LBT) is performed. When the target instruction is used to instruct the UE to hand over from the source cell to the first target cell in the shared spectrum network, if an LBT failure occurs during the random access to the target cell, the LBT failure information is recorded in at least one of the following reports: Radio Link Failure (RLF) report, Random Access Report, and Handover Success Report, based on the handover result.

[0098] Optionally, recording LBT failure information in the Radio Link Failure (RLF) report based on the handover result includes:

[0099] If the handover result is a handover failure, the first result information is recorded in the RLF report. The first result information is that the handover failure was caused by consecutive LBT failures on all BWPs.

[0100] Optionally, recording LBT failure information in at least one of the following reports based on the handover result—the Radio Link Failure (RLF) report, the Random Access Report, and the Handover Success Report—includes:

[0101] If the handover result is a successful handover, then a second result information is recorded in at least one of the RLF report, random access report, and handover success report. The second result information is the random access information of LBT failure on at least one BWP before the successful handover.

[0102] Optionally, the processor records the first result information in the RLF report, and then includes:

[0103] Trigger Radio Resource Control (RRC) connection re-establishment to the second target cell in the shared spectrum network, and perform LBT;

[0104] If it is determined that continuous LBT failures occur on all bandwidth portions of the BWP, a third result information is recorded in the RLF report, which is that no RRC connection re-establishment request was sent due to continuous LBT failures on all BWPs.

[0105] The second target cell is the source cell, the first target cell, or a cell other than the source cell and the first target cell.

[0106] Optionally, the first result information is recorded in the RLF report using first designated identification information.

[0107] Optionally, the first result information may also include: random access information of LBT failures of the UE on all BWPs.

[0108] Optionally, the third result information may further include the terminal re-establishment cell identifier information;

[0109] The third result information is recorded in the RLF report using the second specified identification information, and the terminal re-establishment cell identification information is set to null in the second specified identification information.

[0110] Optionally, the third result information also includes the terminal re-establishment cell identifier information;

[0111] The third result information is represented by setting the cell identifier information re-established by the terminal to a null value in the second specified identifier information.

[0112] Optionally, the processor is further configured to record at least one of the following information in at least one of the RLF report, random access report, and handover success report:

[0113] RSSI measurement results of source cell and neighboring cells;

[0114] The source cell and neighboring cells use identification information to record whether the channel is occupied.

[0115] Optionally, the random access information includes at least one of the following:

[0116] The random access channel (RACH) frequency resources used in each random access process;

[0117] At least one of the following involved in each random access process: the Synchronization Signal Block (SSB), the Downlink Reference Signal Index (CSI-RS index), and the number of random access attempts (Preambles) transmitted in the SSB and CSI-RS index;

[0118] Indication information indicating whether the cell signal quality is higher than the SSB threshold during each random access attempt in each random access procedure, and indication information indicating whether a contention-based random access procedure is detected during each random access attempt;

[0119] The two-step random access instruction indicates whether to revert to the four-step random access instruction after each attempt.

[0120] Cell signal quality measured before the 2-step random access procedure;

[0121] During the LBT process before each random access, is there an identifier indicating whether consecutive LBT failures have occurred?

[0122] The number of times LBT failures occur during multiple random access attempts while accessing the target cell.

[0123] Optionally, when the target instruction is used to instruct the UE to perform a primary / secondary cell switch or add a primary / secondary cell, the processor is further configured to:

[0124] If an LBT failure occurs during random access to a target primary or secondary cell, the LBT failure information is recorded in at least one of the following reports: the SCG failure message and the successful primary or secondary cell change report, based on the primary / secondary cell change result or the primary / secondary cell addition result.

[0125] Optionally, if the primary / secondary cell transition result is a primary / secondary cell transition failure, or the primary / secondary cell addition result is a primary / secondary cell addition failure, then the LBT failure information includes LBT failure indication information.

[0126] The LBT failure indication information is used to indicate that the primary / secondary cell switching or the addition of a primary / secondary cell failed due to LBT failure.

[0127] Optionally, if the primary / secondary cell transition result is a primary / secondary cell transition failure, or the primary / secondary cell addition result is a primary / secondary cell addition failure, then LBT failure information is recorded in at least one of the SCG failure messages and successful primary / secondary cell transition reports, including:

[0128] In the random access information of at least one report in the SCG failure message and the successful primary / secondary cell switch report, at least one of the following information is recorded:

[0129] This is used to indicate whether consecutive LBT failures have occurred during the LBT process before each random access attempt;

[0130] The number of times LBT failures occur during multiple random access attempts while accessing the target cell.

[0131] Optionally, the number of times LBT fails during multiple random access attempts includes at least one of the following:

[0132] The number of LBT failures occurring per beam;

[0133] The total number of LBT failures occurring across all beams.

[0134] Fourthly, embodiments of this application provide an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the steps of the method provided in the first aspect.

[0135] Fifthly, embodiments of this application provide a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method provided in the first aspect.

[0136] In a sixth aspect, embodiments of this application provide a computer program that includes computer instructions stored in a computer-readable storage medium. When a processor of a computer device reads the computer instructions from the computer-readable storage medium, the processor executes the computer instructions, causing the computer device to perform steps that implement the method provided in the first aspect.

[0137] The wireless communication method, apparatus, electronic device, and storage medium provided in this application, by adding result information due to continuous LBT failures, assist the base station in determining whether the cause of the failure is an inappropriate handover configuration or continuous LBT failures, and analyze the exact cause of the handover failure or RLF, thereby obtaining accurate parameter optimization results and realizing the MRO function of the shared spectrum network. Attached Figure Description

[0138] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments of this application will be briefly introduced below.

[0139] Figure 1 A schematic architecture diagram of a system provided in this application embodiment;

[0140] Figure 2 A flowchart illustrating the wireless communication method provided in an embodiment of this application;

[0141] Figure 3 This is a schematic diagram illustrating the interaction when a UE (User Equipment) switches to the wrong cell using related technologies.

[0142] Figure 4 This is a schematic diagram illustrating the interaction when a UE hands over to the wrong cell, according to an embodiment of this application.

[0143] Figure 5 This is a schematic diagram illustrating the interaction in a critical failure scenario when switching related technologies.

[0144] Figure 6 This is an interactive diagram illustrating a switching critical failure scenario according to an embodiment of this application.

[0145] Figure 7 This is an interactive diagram illustrating a scenario where related technologies are switched prematurely.

[0146] Figure 8 This is an interactive diagram illustrating a premature switching scenario provided in an embodiment of this application.

[0147] Figure 9 This application provides a schematic diagram of the structure of a user equipment according to an embodiment of the present application.

[0148] Figure 10 This application provides a schematic diagram of the structure of a user equipment according to an embodiment of the present application.

[0149] Figure 11 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Detailed Implementation

[0150] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0151] Those skilled in the art will understand that, unless explicitly stated otherwise, the singular forms “a,” “an,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in the specification of this application means the presence of features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when we say an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connections or wireless coupling. The term “and / or” as used herein includes all or any units and all combinations of one or more associated listed items.

[0152] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0153] First, let's introduce and explain several terms used in this application:

[0154] (1) Shared spectrum network: Unlike traditional networks where multiple cells use dedicated spectrum, in a shared spectrum network, spectrum information is used by different cells of multiple networks. That is, the shared spectrum may be used by multiple networks. Therefore, before the base station and UE transmit data in the shared spectrum network, the LBT process may need to be performed first to confirm whether the shared spectrum is occupied by other cells. It can only be used when the channel is idle.

[0155] (2) LBT (Local Bit Bypass) by User Equipment (UE) is based on the Bandwidth Part (BWP). If the network configures multiple BWPs for random access resources within a cell for the UE, and the UE fails to perform LBT continuously on a special cell (SpCell), the UE will switch to another BWP to continue performing LBT. The SpCell includes the Primary Cell (PCell) and the Primary Secondary Cell (PSCell).

[0156] (3) The Received Signal Strength Indicator (RSSI) is often used by higher layers to assess whether the target cell sharing the frequency is occupied by other networks. During the handover triggering phase, the network will refer to the RSSI measurement results of the target cell and select an idle target cell for access.

[0157] (4) RLF Report

[0158] An RLF report is a type of report recorded on the UE side, mainly covering two recording scenarios: handover failure and radio link failure. A single RLF report can only represent the recording of one scenario.

[0159] The RLF report includes the following:

[0160] Measurement results of the UE's previous serving cell;

[0161] Neighbor cell measurement results after UE confirms handover failure or radio link failure;

[0162] UE location information;

[0163] UE failure cell identification information, such as Cell Global Identity (CGI) or Physical Cell Identity (PCI) and frequency point;

[0164] UE re-establishes cell identification information;

[0165] UE reporting timer: The time elapsed from the last time the UE acknowledged receiving the handover initiation message to the connection failure;

[0166] Connection failure reasons: handover failure or wireless link failure;

[0167] The Cell-RadioNetwork Temporary Identifier (C-RNTI) used when a UE connection fails;

[0168] The reasons for the wireless link failure include T310 timeout or random access issues, or the Radio Link Control Structure (RLC) layer reaching its maximum retransmission limit or beam failure (BFRF).

[0169] The time elapsed from when the UE confirms the connection failure to when the UE reports the RLF report;

[0170] Tracking Area Code (TAC) of a cell that failed to connect;

[0171] Bluetooth (BT) related record results;

[0172] Wireless Local Area Network (WLAN);

[0173] After the UE records the RLF report, it notifies the network side to retrieve it via messages indicating completion of Radio Resource Control (RRC) connection establishment, RRC connection reconfiguration, RRC connection re-establishment, or RRC recovery. The network side sends a UE Information Request message to the UE, and the UE sends the RLF report to the network via a UE Information Response message.

[0174] (5) MRO

[0175] This primarily addresses UE mobility failures and assists in network optimization. When a handover failure or an RLF (Remotely Requested Failure) occurs, the UE records an RLF report. After a handover failure, the UE performs cell selection and then re-establishes or re-accesses the network via RRC (Remotely Re-established Connection) or RRC connection re-establishment, notifying the network that the RLF report is retained on the UE's side. The network can retrieve this report from the UE when needed for network optimization.

[0176] MRO features are primarily used to discover and resolve parameter configuration issues during mobility operations, and define three failure types: premature handover, delayed handover, and handover to the wrong cell.

[0177] Late handover: After the UE has been stably camped in the source cell for a period of time, a radio link failure occurs, and the UE attempts to access a different cell by re-establishing the connection via RRC.

[0178] Premature handover: During the handover process, the UE fails to access the target cell, or successfully accesses the target cell but soon experiences a radio link failure, and the UE initiates RRC connection re-establishment to attempt to access the source cell.

[0179] Switching to the wrong cell: During the handover process, the UE fails to access the target cell, or successfully accesses the target cell but soon experiences a radio link failure. The UE initiates an RRC connection re-establishment to attempt to access a cell different from the target cell and the source cell.

[0180] After the handover is completed, whether the UE can stably camp on the target cell is the key to the above failure type judgment. If it can stably camp, subsequent failures are unrelated to the previous handover. If it cannot stably camp, it may be due to the previous handover, such as an unreasonable target cell selection.

[0181] The stability of the terminal's camp is determined using the UE reporting timer in the RLF report. A small value indicates no stable camping, while a large value indicates stable camping after handover. A value of 0 indicates no handover occurred.

[0182] (6) Random Access Report

[0183] Existing random access reports only contain information related to successful random access.

[0184] (7) Successful switch report

[0185] The handover success report is a record of information from the UE during the handover process. Although the handover was successful, there may have been some critical success or critical failure information during the handover process. The UE records this information after the handover success report to assist the network in optimizing the handover parameters.

[0186] After the UE records the random access report or handover success report, it notifies the network side to retrieve it through the RRC connection establishment completion, RRC connection reconfiguration completion, RRC connection re-establishment completion, or RRC recovery completion messages. The network side sends a UE information request message to the UE, and the UE sends the random access report and / or handover success report to the network through a UE information response message.

[0187] MRO optimizes handover parameter configuration by analyzing RLF reports to resolve RLF or handover failures that occur during handover. However, in shared frequency band networks, since a new connection to a shared frequency band network requires an LBT process, LBT failure information is not currently recorded in the RLF report. This makes it impossible to distinguish whether the failure is due to inappropriate handover parameter configuration or LBT failure during parameter optimization analysis, leading to incorrect parameter optimization results.

[0188] The wireless communication methods, apparatus, electronic devices, and computer-readable storage media provided in this application are intended to solve the above-mentioned technical problems of the prior art.

[0189] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0190] Figure 1 This is a schematic architecture diagram of a system according to an embodiment of this application.

[0191] The base station provided in this application embodiment can be a base station (Node B, NB) under Universal Mobile Telecommunications System (UMTS), an evolved Node B (eNB) under Long Term Evolution (LTE), or a base station or controller under 5G mobile communication system.

[0192] The user equipment (UE) provided in this application embodiment may be, but is not limited to, a mobile station (MS), a mobile terminal, a mobile telephone, a handset, and portable equipment.

[0193] The shared spectrum in this application embodiment is unlicensed spectrum. Optionally, the shared spectrum in this application embodiment is licensed spectrum purchased by an operator or certain organizations, and this licensed spectrum is shared and used.

[0194] The embodiments of this application are based on the above system architecture. It should be noted that, without conflict, the various embodiments and the features in the embodiments can be combined with each other.

[0195] Please see Figure 2The example illustrates a flowchart of a wireless communication method according to an embodiment of this application, such as... Figure 2 As shown, it includes:

[0196] S21. Determine whether to perform Listen-Before-Speak LBT based on the received target instructions;

[0197] S22. When the target instruction is used to instruct the UE to hand over from the source cell to the first target cell in the shared spectrum network, if it is determined that an LBT failure occurred during the random access to the target cell, then according to the handover result, the LBT failure information is recorded in at least one of the following reports: Radio Link Failure (RLF) report, Random Access report, and Handover Success report.

[0198] In one embodiment, the UE sends measurement report information to the base station of the source cell (also referred to as the source base station). The source base station determines whether the UE should initiate a handover operation based on the measurement report information, that is, to hand over from the source cell to the first target cell in the shared spectrum network. If it determines that a handover operation should be initiated, it sends a target instruction to the UE. The UE determines to execute the handover from the source cell to the first target cell in the shared spectrum network based on the target instruction.

[0199] In one embodiment, the first target cell of this application is the PCell cell.

[0200] In one embodiment, the UE needs to perform LBT during the handover process to a shared spectrum network.

[0201] The handover result of a UE from the source cell to the first target cell may be either a handover failure or a handover success. When the handover fails, it may mean that the UE has failed to perform LBT (Live Bit By-Turn) consecutively on all BWPs. When the handover is successful, it may also occur during the handover process, where the UE fails to perform LBT consecutively on at least one BWP.

[0202] It should be understood that continuous LBT failure in this application refers to an LBT failure occurring consecutively a preset number of times. This application does not specify a particular number of times, for example, it can be 3 times. In the embodiments of this application, whenever an LBT failure occurs on the BWP, the LBT failure information will be recorded in at least one of the following reports: Radio Link Failure (RLF) report, Random Access Report, and Handover Success Report.

[0203] In one embodiment, when a handover fails, the present application embodiment may record LBT failure information in the RLF report and / or random access report; when a handover succeeds, the present application embodiment may record LBT failure information in at least one of the RLF report, random access report, and handover success report.

[0204] The LBT failure information in this application embodiment may be information indicating handover failure due to consecutive LBT failures, random access information of consecutive LBT failures on the BWP, etc.

[0205] In existing technologies, UEs do not record LBT failure information in RLF reports, random access reports, or handover success reports. Therefore, base stations have no way to obtain this information from UEs, leading to inaccurate determinations of the cause of failure by the base station. However, this application adds LBT failure information to reports that the base station can obtain, such as RLF reports, random access reports, and handover success reports, to assist the base station in determining whether the cause of failure is an inappropriate handover configuration or an LBT failure. It also analyzes the exact cause of the handover failure or RLF, thereby obtaining accurate parameter optimization results and realizing the MRO function of the shared spectrum network.

[0206] Please see Figure 3 The figure illustrates an interactive diagram of a UE handover to an incorrect cell in a scenario related to the technology, as shown in the figure, including:

[0207] Step S30: The UE reports a measurement report to the source base station, and the source base station triggers the UE to perform base station handover based on the measurement report;

[0208] Step S31: The UE determines to perform a handover from the source base station to the target base station (i.e., the base station corresponding to the target cell) in the shared spectrum network;

[0209] Step S32: Since the target cell is a shared spectrum network, the UE needs to perform LBT during the access process to the target cell, but continuous LBT failures occur;

[0210] Step S33: Due to consecutive LBT failures, the UE handover random access failed;

[0211] Step S34: The UE records an RLF report, which does not record any LBT failure information;

[0212] Step S35: The UE re-establishes itself with another base station, and the other base station obtains the RLF report recorded by the UE;

[0213] Step S36: Other base stations send RLF reports to the source base station for handover failure analysis.

[0214] Step S37: The source base station directly optimizes the handover parameter configuration and lowers the handover trigger threshold for other cells.

[0215] Figure 3The interaction scenario shown is a typical failure type of handover to the wrong cell, that is, the terminal fails to access the target cell during the handover process, and the terminal initiates RRC connection re-establishment to try to access other cells that are different from the target cell and the source cell.

[0216] In related technologies, since the RLF report does not record the consequences of consecutive LBT failures, the source base station typically optimizes handover parameter configurations directly, lowering the handover trigger threshold of other cells (e.g., lowering the trigger signal level) and raising the handover trigger threshold of the current target cell to make it easier for the UE to hand over to other cells. However, in reality, when the target cell is a shared spectrum network, and the handover failure is due to consecutive LBT failures, the root cause is that the shared spectrum is occupied by other cells. This makes the actual effect of the base station raising the handover trigger threshold of the current target cell in related technologies less than ideal.

[0217] If the handover result is a handover failure, the first result information is recorded in the RLF report. The first result information is that the handover failure was caused by continuous LBT failures on all BWPs. After the source base station obtains the UE's RLF report, it can analyze the shared spectrum based on the first result information to find that the shared spectrum is occupied by other cells, so there is no need to adjust the handover trigger threshold, and a more reasonable handling method is determined.

[0218] Based on the above embodiments, as an optional embodiment, the first result information is recorded in the RLF report by means of first designated identification information.

[0219] In this embodiment of the application, an additional identifier bit can be added to the RLF report to record the identifier information indicating that the handover failure is caused by the UE's continuous LBT failure on all BWPs in the form of a first specified identifier information. This allows the base station to know the real reason for the handover failure based on the identifier bit, and then give a more accurate and reasonable handling method, such as paying attention to whether it is occupied by other networks, and judging and selecting a suitable handover target cell based on the occupancy identifier in the service cell and neighbor cell measurement results added in this embodiment of the application.

[0220] Please see Figure 4 The figure illustrates an interactive diagram of a UE handover to an incorrect cell in an embodiment of this application, as shown in the figure, including:

[0221] Step S40: The UE reports a measurement report to the source base station, and the source base station triggers the UE to perform base station handover based on the measurement report;

[0222] Step S41: The UE determines to perform a handover from the source base station to the target base station (i.e., the base station corresponding to the target cell) in the shared spectrum network;

[0223] Step S42: Since the target cell is a shared spectrum network, the UE needs to perform LBT during the access process to the target cell, but continuous LBT failures occur;

[0224] Step S43: Since the UE has experienced consecutive LBT failures on all BWPs, the UE handover random access has failed;

[0225] Step S44: The UE records an RLF report, which records identification information indicating that the handover failed due to consecutive LBT failures on all BWPs;

[0226] Step S45: The UE re-establishes itself with another base station, and the other base station obtains the RLF report recorded by the UE;

[0227] Step S46: Other base stations send RLF reports to the source base station for handover failure analysis.

[0228] Step S47: The source base station obtains accurate parameter optimization results based on the identification information recorded in the RLF report.

[0229] In addition to recording the information that the handover failure was due to continuous LBT failures on all BWPs in the form of the first designated identification information, this application embodiment can also add random access information of UE's LBT failures on all BWPs to the random access information recording content of the RLF report. The source base station can more accurately optimize the handover parameter configuration based on the information collected by the UE during the random access process of LBT failures on all BWPs.

[0230] Specifically, in this application embodiment, a list structure can be used when recording random access information. Each node in the list structure represents a single instance of random access information. The random access information in this application embodiment may include:

[0231] The random access channel (RACH) frequency resources used in each random access process;

[0232] At least one of the following involved in each random access process: the Synchronization Signal Block (SSB), the Downlink Reference Signal Index (CSI-RS index), and the number of random access attempts (Preambles) transmitted in the SSB and CSI-RS index;

[0233] Indication information indicating whether the cell signal quality is higher than the SSB threshold during each random access attempt in each random access procedure, and indication information indicating whether a contention-based random access procedure is detected during each random access attempt;

[0234] The two-step random access method provides an indication of whether to fall back to the four-step random access method in each attempt.

[0235] Cell signal quality measured before the 2-step random access procedure;

[0236] Before each random access, an LBT process is performed to identify whether consecutive LBT failures have occurred.

[0237] The number of LBT failures during multiple random access attempts in the process of accessing the target cell can include at least one of the following:

[0238] The number of LBT failures occurring per beam;

[0239] The total number of LBT failures occurring across all beams.

[0240] When recording the number of LBT failures occurring under each beam, it can be done sequentially, where each element in the sequence represents the number of LBT failures occurring under the corresponding beam. When recording the total number of LBT failures transmitted under all beams, this total number is the sum of the number of LBT failures occurring under all beams.

[0241] If the shared spectrum is occupied by other cells, making access impossible, it is necessary to further determine a suitable target cell for access. Generally, the measurement results of neighboring cells can be considered to determine whether there are cells in the neighboring cells whose signal quality meets the preset requirements. It is also possible to consider whether the source cell is suitable to continue serving the UE. However, the current measurement results of the source cell and neighboring cells cannot accurately analyze whether the shared spectrum is idle.

[0242] Therefore, in order to solve this technical problem, as an optional embodiment, this application embodiment records at least one of the following information in at least one of the RLF report, random access report, and handover success report:

[0243] RSSI measurement results of source cell and neighboring cell, in decibel relative to one milliwatt (dbm);

[0244] The source cell and neighboring cells use identification information to record whether the channel is occupied.

[0245] By adding information indicating whether a channel is occupied to the report, it is possible to quickly determine whether the shared spectrum is idle, thus improving analysis efficiency.

[0246] Please see Figure 5 The figure illustrates an interactive diagram of a UE handover critical failure scenario, as shown in the figure, including:

[0247] Step S50: The UE reports a measurement report to the source base station, and the source base station triggers the UE to perform base station handover based on the measurement report;

[0248] Step S51: The UE determines to perform a handover from the source base station to the target base station in the shared spectrum network;

[0249] Step S52: The UE experienced an LBT failure during the access to the target cell;

[0250] Step S53: After the UE makes multiple random access attempts, if the LBT is successful, the random access is successful;

[0251] Step S54: The UE records a random access report, which includes information about successful random access by the LBT;

[0252] Step S55: The base station obtains a random access report, but since it only includes random access information of successful LBTs, it may select a BWP that failed in LBTs during the next BWP allocation.

[0253] During random access in a shared frequency band, if a UE experiences consecutive LBT failures on a single BWP, it can switch BWPs and continue LBT. However, existing random access reports only record successful random access information; they cannot record consecutive LBT failures on certain BWPs. When analyzing random access reports, the base station cannot detect potential network conflicts on certain BWPs. These conflicts may still be selected during subsequent resource allocation, leading to increased handover latency and handover failure rate.

[0254] To address the aforementioned issues, embodiments of this application record LBT failure information in at least one of the following reports: Radio Link Failure (RLF) report, Random Access Report, and Handover Success Report, including:

[0255] If the handover result is a successful handover, then a second result information is recorded in at least one of the RLF report, random access report, and handover success report. The second result information is the random access information of LBT failure on at least one BWP before the successful handover.

[0256] Please see Figure 6 The figure exemplifies an interaction diagram under a switching critical failure scenario according to an embodiment of this application, as shown in the figure, including:

[0257] Step S60: The UE reports a measurement report to the source base station, and the source base station triggers the UE to perform base station handover based on the measurement report;

[0258] Step S61: The UE determines to perform a handover from the source base station to the target base station in the shared spectrum network;

[0259] Step S62: An LBT failure occurred during the UE's access to the target cell;

[0260] Step S63: After the UE makes multiple random access attempts, if the LBT is successful, the random access is successful;

[0261] Step S64: The UE records a random access report, which includes random access information for consecutive LBT failures on at least one BWP before a successful handover;

[0262] Step S65: The base station obtains the random access report and, based on the random access information of consecutive LBT failures, avoids the BWP that has failed consecutive LBTs in the next BWP allocation.

[0263] Based on the above embodiments, when recording random access information of a UE failing LBT on at least one BWP, the embodiments of this application can use a list structure, where a node in the list represents the information of sequential random access, and may include:

[0264] The random access channel (RACH) frequency resources used in each random access process;

[0265] At least one of the following: the Synchronization Signal Block (SSB), the Downlink Reference Signal Index (CSI-RS index), and the number of Preambles for random access attempts transmitted in the SSB and CSI-RS index during each random access process;

[0266] Indication information indicating whether the cell signal quality is higher than the SSB threshold during each random access attempt in each random access procedure, and indication information indicating whether a contention-based random access procedure is detected during each random access attempt;

[0267] Instructions for whether to revert to 4-step random access on each attempt in 2-step random access;

[0268] Cell signal quality measured before the 2-step random access procedure;

[0269] During the LBT process before each random access, is there an identifier indicating whether consecutive LBT failures have occurred?

[0270] The number of times LBT failures occur during multiple random access attempts while accessing the target cell.

[0271] If the handover result is a successful handover, then a second result information is recorded in at least one of the RLF report, random access report, and handover success report. The second result information is the random access information of LBT failure on at least one BWP before the successful handover.

[0272] Based on the above embodiments, as an optional embodiment, in the event of a critical handover failure, the RSSI measurement results of the source cell and neighboring cells, as well as the identification information of the source cell and neighboring cells for recording whether the channel is occupied, can also be recorded in at least one of the RLF report, random access report, and handover success report, thereby assisting the base station in selecting a more suitable handover target cell.

[0273] Please see Figure 7 The figure exemplifies an interaction diagram in a scenario of premature switching of related technologies, as shown in the figure, including:

[0274] Step S70: The UE reports a measurement report to the source base station, and the source base station triggers the UE to perform base station handover based on the measurement report;

[0275] Step S71: The UE determines to perform a handover from the source base station to the target base station in the shared spectrum network;

[0276] Step S72: UE handover failed;

[0277] Step S73: The UE records the RLF report, but does not record LBT failure information, such as the identification information of handover failure caused by the UE's continuous LBT failure on all BWPs;

[0278] Step S74: The UE attempts to re-establish a connection with the source base station, but no information indicating that a Radio Resource Control (RRC) connection re-establishment request was sent is recorded in the RLF report;

[0279] Step S75: The UE re-accesses the network at other base stations, and the other base stations obtain the RLF report recorded by the UE;

[0280] Step S76: Other base stations send RLF reports to the source base station for handover failure analysis;

[0281] Step S77: The source base station has missed or duplicate statistics when performing MRO statistics.

[0282] The above process represents a typical scenario of premature handover failure, where the terminal fails to access the target cell during the handover process, and the terminal initiates an RRC connection re-establishment attempt to access the source cell. In related technologies, the RLF report includes the terminal's re-establishment cell identifier information, used to record the identifier information of the source base station cell that the UE attempts to re-establish access after a handover failure.

[0283] However, if the cell where RRC connection re-establishment occurs is a shared spectrum network, the UE may be unable to send the RRC connection re-establishment request to the base station due to consecutive LBT failures on all BWPs. The reason for this inability to send the request to the base station is that the shared spectrum is occupied by other cells, preventing the UE from sending the RRC connection re-establishment request message. This should be recorded in the RLF report to prevent the base station from missing or duplicate statistics during MRO statistics.

[0284] Therefore, based on the above embodiments, as an optional embodiment, the wireless communication method records the first result information in the RLF report, and then further includes:

[0285] Trigger Radio Resource Control (RRC) connection re-establishment to the second target cell in the shared spectrum network, and perform LBT;

[0286] When a UE fails to hand over to the first target cell, it can trigger an RRC reconnection to another cell. During the random process of RRC reconnection to the second target cell, since the other cells belong to a shared spectrum network, LBT is required first during the RRC connection re-establishment process. If LBT is successful, an RRC connection re-establishment request can be sent to the second target cell. If LBT fails consecutively on all BWPs, it means that an RRC connection re-establishment request cannot be sent.

[0287] If it is determined that consecutive LBT failures occur on all bandwidth portions of the BWP, a third result information is recorded in the RLF report. This third result information indicates that no RRC connection re-establishment request was sent due to consecutive LBT failures on all BWPs. The second target cell can be the source cell, the first target cell, or a cell other than the source cell or the first target cell.

[0288] This application embodiment adds a message to the RLF report stating that the UE has no opportunity to send an RRC connection re-establishment request due to consecutive LBT failures on all BWPs, which can prevent the base station from missing or duplicate statistics when performing MRO statistics.

[0289] Please see Figure 8 The figure illustrates an interactive diagram of a premature switching scenario according to an embodiment of this application, as shown in the figure, including:

[0290] Step S80: The UE reports a measurement report to the source base station, and the source base station triggers the UE to perform base station handover based on the measurement report;

[0291] Step S81: The UE determines to perform a handover from the source base station to the target base station in the shared spectrum network;

[0292] Step S82: UE handover failed;

[0293] Step S83: UE records RLF report;

[0294] Step S84: The UE attempts to re-establish connection with the source base station and records in the RLF report the third result information indicating that no RRC connection re-establishment request was sent due to continuous LBT failures on all BWPs;

[0295] Step S85: The UE re-accesses the network at other base stations, and the other base stations obtain the RLF report recorded by the UE;

[0296] Step S86: Other base stations send RLF reports to the source base station for handover failure analysis;

[0297] Step S87: The source base station will no longer miss or duplicate statistics when performing MRO statistics.

[0298] Based on the above embodiments, as an optional embodiment, the third result information used to indicate that no RRC connection re-establishment request was sent due to consecutive LBT failures on all BWPs includes:

[0299] (a) Recorded in the RLF report using the second specified identification information, and the terminal re-establishment cell identification information is set to null in the second specified identification information;

[0300] (b) The terminal re-establishes the cell identification information, which is set to null in the second specified identification information.

[0301] Since the cell re-establishment identifier field in the RLF report is optional, this embodiment sets the field to empty. When the base station receives the RLF report, it knows that the UE failed to send the RRC connection re-establishment request because of the continuous LBT failures on all BWPs.

[0302] Based on the above embodiments, the embodiments of this application are also applicable to situations in which LBT failure occurs during the addition of a primary or secondary cell or the transition between primary and secondary cells in a Multi-Radio Dual Connectivity (MR-DC) scenario, resulting in the failure to access the target primary or secondary cell.

[0303] First, let's introduce and explain the names involved in MR-DC:

[0304] 1) A UE may connect to a master node (MN) and one or more secondary nodes (SN), and interact with these network nodes for signaling and / or data exchange. Both the MN and SN nodes can be LTE / e-LTE / NR nodes. When a UE is connected to both an MN node and an SN node, it is referred to as dual connectivity (DC).

[0305] When a UE is in connected mode, it can connect to one or more network-side nodes, which can be in one or more Radio Access Technologies (RATs). For example, when MN is an LTE node and SN is an NR node, it is (NG)EN-DC dual connectivity; when MN is an NR node and SN is an LTE node, it is NE-DC dual connectivity; when both MN and SN are NR nodes, it is NR-NR-DC.

[0306] 2) SCG (Secondary Cell Group) is a serving cell group under the SN node in MR-DC, which includes one primary secondary cell (PSCell) and one or more secondary cells (Scells).

[0307] RLF is divided into two types: Master Cell Group (MCG) and SCG. If a radio link failure occurs in the MCG, the UE triggers the RRC connection re-establishment process. If a failure occurs in the SCG, the UE sends an SCG failure message to the MN node.

[0308] The purpose of the SCG failure message is to notify the MN node about radio link failures, synchronization reconfiguration failures, SCG configuration failures on the Signalling Radio Bearer (SRB) 3, and SCG integrity verification failures that occurred at the SN node for the UE.

[0309] The message content of the SCG failure message mainly includes the ID of the PSCell cell where the failure occurred, the ID of the source PSCell cell where the PSCell cell change occurred, the time length from the occurrence of the PSCell cell change to the SCG failure, random access related information recorded when random access fails, SCG failure type, UE measurement results, etc.

[0310] 3) Primary and secondary cell PSCell change and primary and secondary cell PSCell addition procedures

[0311] The PSCell change (also known as Secondary Node Change) procedure can be triggered by either the MN or the SN. Taking the primary / secondary cell change procedure across SN nodes as an example, the UE's context is transferred from the source SN (S-SN) to the target SN (T-SN), while the SCG configuration is changed on the UE side from the source SN to the target SN. In the EN-DC scenario, the primary / secondary cell change procedure triggered by the MN includes:

[0312] MN triggers the primary / secondary cell switching process and sends an SgNB add message to the target SN to request resource allocation;

[0313] The MN triggers the SgNB to delete the message to the source SN, requesting the source SN to stop sending data to the UE.

[0314] MN configures UE to execute the new configuration;

[0315] MN notifies the target SN that configuration is complete;

[0316] When a UE performs random access in a target primary or secondary cell, if the target primary or secondary cell is a shared network cell, LBT failure may occur during the random access process, resulting in failure to access the target primary or secondary cell.

[0317] MN release source SN configuration;

[0318] The addition of primary and secondary cells is triggered by MN. During the random access process of the target primary and secondary cells added by the UE, LBT failure may occur, resulting in random access failure.

[0319] When a primary / secondary cell switch or the addition of a primary / secondary cell fails, the network receives an SCG failure message and optimizes its network parameter configuration based on the message log. However, if the existing information does not contain LBT failure information, this will lead to incorrect optimization of network parameter configuration. For example, when primary / secondary cell access fails, traditionally, the network will optimize parameters to raise the threshold for the UE to access that primary / secondary cell, allowing the UE to access the cell when the signal is better. However, actual random access failures are not caused by poor signal quality, but by shared network occupancy, which is unrelated to signal quality and should not require optimization of network parameter configuration.

[0320] Based on the above embodiments, as an optional embodiment, when the target instruction is used to instruct the UE to perform a primary / secondary cell switch, the method further includes:

[0321] If an LBT failure occurs during random access to a target primary or secondary cell, the LBT failure information is recorded in at least one report within the SCG failure message based on the primary / secondary cell transition result. To inform the network that the random access failure is due to an LBT failure, LBT failure information needs to be added to the SCG failure message, specifically including at least one of the following:

[0322] 1. Add LBT failure indication information to indicate that the failure of primary / secondary cell switching or the failure of adding a primary / secondary cell is due to LBT;

[0323] 2. Add at least one of the following items to the random access information of the SCG failure message:

[0324] 1) Used to indicate whether consecutive LBT failures have occurred during the LBT process before each random access attempt.

[0325] 2) The number of LBT failures that occurred during multiple random access attempts in the process of accessing the target cell. In some embodiments, this number can be the number of LBT failures that occurred under each beam, or the total number of LBT failures that occurred under all beams.

[0326] Based on the above embodiments, in the MR-DC scenario, there may also be a situation where the process of adding or changing primary and secondary cells is successful, but a successful primary and secondary cell change report is generated: During the process of adding or changing primary and secondary cells, if the UE successfully accesses the target primary or secondary cell, but the random access time to the target primary or secondary cell during the access process is too long, the UE will be triggered to generate a successful primary and secondary cell change report.

[0327] The network uses successful primary / secondary cell transition reports for parameter optimization to reduce the time spent randomly accessing target primary / secondary cells. Because the access time is too long, although there is no access failure, it is at the point of failure, and the network still needs parameter optimization and adjustment.

[0328] For example, adjusting the trigger threshold for adding or changing primary / secondary cells can improve signal strength and quality during subsequent access to the target primary / secondary cell. However, if LBT transmission fails during the access process to the target primary / secondary cell, it will also result in a longer random access time. This is because the shared cell for the primary / secondary cell is occupied by other networks, causing the random access attempt to fail, not due to signal quality issues.

[0329] To avoid network errors when optimizing network parameters, LBT failure information needs to be added to successful PSCell transition reports. Specifically, at least one of the following should be added to the random access information section of successful primary / secondary cell transition reports:

[0330] 1) Before each random access attempt, perform the LBT process and check whether consecutive LBT failures have occurred.

[0331] 2) The number of LBT failures during multiple random access attempts in the process of accessing the target cell can be at least one of the following:

[0332] The number of LBT failures occurring per beam;

[0333] The total number of LBT failures occurring across all beams.

[0334] When recording the number of LBT failures occurring under each beam, it can be done sequentially, where each element in the sequence represents the number of LBT failures occurring under the corresponding beam. When recording the total number of LBT failures transmitted under all beams, this total number is the sum of the number of LBT failures occurring under all beams.

[0335] This application provides a user equipment, such as... Figure 9 As shown, the user equipment includes an LBT module 91 and a report logging module 92, specifically:

[0336] LBT module 91 is used to determine whether to perform Listen-Before-Speak LBT based on the received target instruction;

[0337] The report recording module 92 is used to record LBT failure information in at least one of the following reports, namely Radio Link Failure (RLF) report, Random Access report, and Handover Success report, based on the handover result, when the target instruction is to instruct the UE to hand over from the source cell to the first target cell in the shared spectrum network.

[0338] The user equipment provided in this application embodiment specifically executes the process described in the above method embodiment. For details, please refer to the content of the above wireless communication method embodiment, which will not be repeated here. The user equipment provided in this application embodiment, by adding relevant information records of continuous LBT failures, assists the base station in determining whether the cause of the failure is an inappropriate handover configuration or an LBT failure, and analyzes the exact cause of the handover failure or RLF, thereby obtaining accurate parameter optimization results and realizing the MRO function of the shared spectrum network.

[0339] In one possible implementation, the report logging module includes:

[0340] The first result recording unit is used to record first result information in the RLF report if the handover result is a handover failure. The first result information is that the handover failure was caused by continuous LBT failures on all BWPs.

[0341] In one possible implementation, the report logging module includes:

[0342] The second result recording unit is used to record second result information in at least one of the RLF report, random access report and handover success report if the handover result is a successful handover. The second result information is the random access information of LBT failure on at least one BWP before the successful handover.

[0343] In one possible implementation, the report logging module also includes:

[0344] The re-establishment trigger module is used to trigger the Radio Resource Control (RRC) connection to be re-established to the second target cell in the shared spectrum network for LBT (Local Bit Bypass).

[0345] The third result recording unit is used to record third result information in the RLF report if it is determined that continuous LBT failures occurred on all bandwidth portions of BWPs. The third result information is that no RRC connection re-establishment request was sent due to continuous LBT failures on all BWPs.

[0346] The second target cell is the source cell, the first target cell, or a cell other than the source cell and the first target cell.

[0347] In one possible implementation, the first result information is recorded in the RLF report by means of a first designated identifier information.

[0348] In one possible implementation, the first result information may further include: random access information indicating that the UE failed LBT on all BWPs.

[0349] In one possible implementation, the third result information further includes the terminal re-establishment cell identifier information;

[0350] The third result information is recorded in the RLF report using the second specified identification information, and the terminal re-establishment cell identification information is set to null in the second specified identification information.

[0351] In one possible implementation, the third result information also includes the terminal re-establishment cell identifier information;

[0352] The third result information is represented by setting the cell identifier information re-established by the terminal to a null value in the second specified identifier information.

[0353] In one possible implementation, the report logging module also includes:

[0354] The supplementary recording unit is used to record at least one of the following information in at least one of the RLF report, random access report, and handover success report:

[0355] RSSI measurement results of source cell and neighboring cells;

[0356] The source cell and neighboring cells use identification information to record whether the channel is occupied.

[0357] Optionally, the random access information includes at least one of the following:

[0358] The random access channel (RACH) frequency resources used in each random access process;

[0359] At least one of the following involved in each random access process: the Synchronization Signal Block (SSB), the Downlink Reference Signal Index (CSI-RS index), and the number of random access attempts (Preambles) transmitted in the SSB and CSI-RS index;

[0360] Indication information indicating whether the cell signal quality is higher than the SSB threshold during each random access attempt in each random access procedure, and indication information indicating whether a contention-based random access procedure is detected during each random access attempt;

[0361] The two-step random access instruction indicates whether to revert to the four-step random access instruction after each attempt.

[0362] Cell signal quality measured before the 2-step random access procedure;

[0363] Before each random access, an LBT process is performed to identify whether consecutive LBT failures have occurred;

[0364] The number of times LBT failures occur during multiple random access attempts while accessing the target cell.

[0365] Optionally, when the target instruction is used to instruct the UE to perform a primary / secondary cell switch or add a primary / secondary cell, the user equipment further includes:

[0366] The failure recording module is used to record LBT failure information in at least one of the following reports, namely the SCG failure message and the successful primary / secondary cell change report, based on the primary / secondary cell change result or the primary / secondary cell addition result, if an LBT failure occurs during random access to the target primary / secondary cell.

[0367] Optionally, if the primary / secondary cell transformation result is a primary / secondary cell transformation failure, or the primary / secondary cell addition result is a primary / secondary cell addition failure, then the failure recording module is specifically used for:

[0368] The LBT failure information is recorded in the SCG failure message, and the LBT failure information includes LBT failure indication information;

[0369] The LBT failure indication information is used to indicate that the primary / secondary cell switching or the addition of a primary / secondary cell failed due to LBT failure.

[0370] Optionally, if the primary / secondary cell transformation result is a primary / secondary cell transformation failure, or the primary / secondary cell addition result is a primary / secondary cell addition failure, then the failure recording module is specifically used for:

[0371] LBT failure information is recorded in the random access information of the SCG failure message, and the LBT failure information includes at least one of the following:

[0372] This is used to indicate whether consecutive LBT failures have occurred during the LBT process before each random access attempt;

[0373] The number of times LBT failures occur during multiple random access attempts while accessing the target cell.

[0374] Optionally, if the primary / secondary cell transition result is a successful primary / secondary cell transition and a successful primary / secondary cell transition report is generated, or the primary / secondary cell addition result is a successful primary / secondary cell addition and a successful primary / secondary cell transition report is generated, then the failure recording module is specifically used for:

[0375] LBT failure information is recorded in the random access information section of the successful primary / secondary cell transition report, and the LBT failure information includes at least one of the following:

[0376] This is used to indicate whether consecutive LBT failures have occurred during the LBT process before each random access attempt;

[0377] The number of times LBT failures occur during multiple random access attempts while accessing the target cell.

[0378] Optionally, the number of times LBT fails during multiple random access attempts includes at least one of the following:

[0379] The number of LBT failures occurring per beam;

[0380] The total number of LBT failures occurring across all beams.

[0381] In one alternative embodiment, a user equipment is provided, including a memory 1020, a transceiver 1040, and a processor 1010;

[0382] Memory 1020 is used to store computer programs;

[0383] Transceiver 1040 is used to receive and send data under the control of processor 1010;

[0384] Processor 1010 is configured to read the computer program in the memory 1020 and perform the following operations:

[0385] Based on the received target instructions, determine whether to perform Listen-Before-Speak LBT;

[0386] When the target instruction is used to instruct the UE to hand over from the source cell to the first target cell in the shared spectrum network, if it is determined that an LBT failure occurred during the random access to the target cell, the LBT failure information is recorded in at least one of the following reports: Radio Link Failure (RLF) report, Random Access report, and Handover Success report, based on the handover result.

[0387] Optionally, recording LBT failure information in the Radio Link Failure (RLF) report based on the handover result includes:

[0388] If the handover result is a handover failure, the first result information is recorded in the RLF report. The first result information is that the handover failure was caused by consecutive LBT failures on all BWPs.

[0389] Optionally, recording LBT failure information in at least one of the following reports based on the handover result—the Radio Link Failure (RLF) report, the Random Access Report, and the Handover Success Report—includes:

[0390] If the handover result is a successful handover, then a second result information is recorded in at least one of the RLF report, random access report, and handover success report. The second result information is the random access information of LBT failure on at least one BWP before the successful handover.

[0391] Optionally, the processor records the first result information in the RLF report, and then includes:

[0392] Trigger Radio Resource Control (RRC) connection re-establishment to the second target cell in the shared spectrum network, and perform LBT;

[0393] If it is determined that continuous LBT failures occur on all bandwidth portions of the BWP, a third result information is recorded in the RLF report, which is that no RRC connection re-establishment request was sent due to continuous LBT failures on all BWPs.

[0394] The second target cell is the source cell, the first target cell, or a cell other than the source cell and the first target cell.

[0395] Optionally, the first result information is recorded in the RLF report using first designated identification information.

[0396] Optionally, the first result information may also include: random access information of LBT failures of the UE on all BWPs.

[0397] Optionally, the third result information may further include the terminal re-establishment cell identifier information;

[0398] The third result information is recorded in the RLF report using the second specified identification information, and the terminal re-establishment cell identification information is set to null in the second specified identification information.

[0399] Optionally, the third result information also includes the terminal re-establishment cell identifier information;

[0400] The third result information is represented by setting the cell identifier information re-established by the terminal to a null value in the second specified identifier information.

[0401] Optionally, the processor is further configured to record at least one of the following information in at least one of the RLF report, random access report, and handover success report:

[0402] RSSI measurement results of source cell and neighboring cells;

[0403] The source cell and neighboring cells use identification information to record whether the channel is occupied.

[0404] Optionally, the random access information includes at least one of the following:

[0405] The random access channel (RACH) frequency resources used in each random access process;

[0406] At least one of the following involved in each random access process: the Synchronization Signal Block (SSB), the Downlink Reference Signal Index (CSI-RS index), and the number of random access attempts (Preambles) transmitted in the SSB and CSI-RS index;

[0407] Indication information indicating whether the cell signal quality is higher than the SSB threshold during each random access attempt in each random access procedure, and indication information indicating whether a contention-based random access procedure is detected during each random access attempt;

[0408] The two-step random access instruction indicates whether to revert to the four-step random access instruction after each attempt.

[0409] Cell signal quality measured before the 2-step random access procedure;

[0410] Before each random access, an LBT process is performed to identify whether consecutive LBT failures have occurred;

[0411] The number of times LBT failures occur during multiple random access attempts while accessing the target cell.

[0412] Optionally, when the target instruction is used to instruct the UE to perform a primary / secondary cell switch or add a primary / secondary cell, the processor is further configured to:

[0413] If an LBT failure occurs during random access to a target primary or secondary cell, the LBT failure information is recorded in at least one of the following reports: the SCG failure message and the successful primary or secondary cell change report, based on the primary / secondary cell change result or the primary / secondary cell addition result.

[0414] Optionally, if the primary / secondary cell transition result is a primary / secondary cell transition failure, or the primary / secondary cell addition result is a primary / secondary cell addition failure, then the LBT failure information includes LBT failure indication information.

[0415] The LBT failure indication information is used to indicate that the primary / secondary cell switching or the addition of a primary / secondary cell failed due to LBT failure.

[0416] Optionally, if the primary / secondary cell transition result is a primary / secondary cell transition failure, or the primary / secondary cell addition result is a primary / secondary cell addition failure, then LBT failure information is recorded in at least one of the SCG failure messages and successful primary / secondary cell transition reports, including:

[0417] In the random access information of at least one report in the SCG failure message and the successful primary / secondary cell switch report, at least one of the following information is recorded:

[0418] This is used to indicate whether consecutive LBT failures have occurred during the LBT process before each random access attempt;

[0419] The number of times LBT failures occur during multiple random access attempts while accessing the target cell.

[0420] Optionally, the number of times LBT fails during multiple random access attempts includes at least one of the following:

[0421] The number of LBT failures occurring per beam;

[0422] The total number of LBT failures occurring across all beams.

[0423] Among them, Figure 10In this context, the bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors 101 represented by processor 101 and various circuits of memory 102 represented by memory 102. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. Bus interface 103 provides an interface. Transceiver 104 can be multiple elements, including transmitters and receivers, providing units for communicating with various other devices over transmission media, including wireless channels, wired channels, optical fibers, etc. Processor 101 is responsible for managing the bus architecture and general processing, and memory 102 can store data used by processor 1010 during operation.

[0424] The processor 101 may be a central processing unit (CPU), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor 101 may also adopt a multi-core architecture.

[0425] The processor 101 executes any of the methods described in the embodiments of this application according to the obtained executable instructions by calling a computer program stored in the memory 102. The processor 101 and the memory 102 may also be physically separated.

[0426] In one alternative embodiment, an electronic device is provided, such as Figure 11 As shown, Figure 11 The illustrated electronic device 110 includes a processor 111 and a memory 113. The processor 111 and the memory 113 are connected, for example, via a bus 112. Optionally, the electronic device 110 may also include a transceiver 4004. It should be noted that in practical applications, the transceiver 114 is not limited to one, and the structure of this electronic device 110 does not constitute a limitation on the embodiments of this application.

[0427] Processor 111 may be a CPU (Central Processing Unit), a general-purpose processor, a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. Processor 111 may also be a combination that implements computational functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.

[0428] Bus 112 may include a pathway for transmitting information between the aforementioned components. Bus 112 may be a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus, etc. Bus 112 can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 11 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0429] The memory 113 may be a ROM (Read Only Memory) or other type of static storage device capable of storing static information and instructions, RAM (Random Access Memory) or other type of dynamic storage device capable of storing information and instructions, or an EEPROM (Electrically Erasable Programmable Read Only Memory), CD-ROM (Compact Disc Read Only Memory) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital universal optical discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but not limited thereto.

[0430] The memory 113 is used to store application code that executes the solution of this application, and its execution is controlled by the processor 111. The processor 111 is used to execute the application code stored in the memory 113 to implement the content shown in the foregoing method embodiments.

[0431] This application provides a computer-readable storage medium storing a computer program that, when run on a computer, enables the computer to execute the corresponding content in the aforementioned method embodiments. Compared with the prior art, by adding relevant information records of consecutive LBT failures, the base station is assisted in determining whether the cause of the failure is an inappropriate handover configuration or consecutive LBT failures, and the exact cause of the handover failure or RLF is analyzed, thereby obtaining accurate parameter optimization results and realizing the MRO function of the shared spectrum network.

[0432] This application provides a computer program including computer instructions stored in a computer-readable storage medium. When a processor of a computer device reads the computer instructions from the computer-readable storage medium, the processor executes the computer instructions, causing the computer device to perform the content shown in the foregoing method embodiments. Compared with the prior art, by adding relevant information records of consecutive LBT failures, the base station is assisted in determining whether the cause of the failure is an inappropriate handover configuration or consecutive LBT failures, and the exact cause of the handover failure or RLF is analyzed, thereby obtaining accurate parameter optimization results and realizing the MRO function of the shared spectrum network.

[0433] It should be understood that although the steps in the flowcharts of the accompanying figures are shown sequentially as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the accompanying figures may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the sub-steps or stages of other steps.

[0434] The above are only some embodiments of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A wireless communication method, characterized in that, Applied to user terminal equipment (UE), including: Based on the received target instructions, determine whether to perform Listen-Before-Speak LBT; When the target instruction is used to instruct the UE to hand over from the source cell to the first target cell in the shared spectrum network, if an LBT failure occurs during the random access to the target cell process, the LBT failure information is recorded in at least one of the following reports: Radio Link Failure (RLF) report, Random Access report, and Handover Success report, based on the handover result. The step of recording LBT failure information in at least one of the following reports based on the handover result: Radio Link Failure (RLF) report, Random Access report, and Handover Success report includes: If the handover result is a successful handover, then a second result information is recorded in at least one of the RLF report, random access report, and handover success report. The second result information is the random access information of LBT failure on at least one BWP before the successful handover.

2. The wireless communication method according to claim 1, characterized in that, The step of recording LBT failure information in the Radio Link Failure (RLF) report based on the handover result includes: If the handover result is a handover failure, the first result information is recorded in the RLF report. The first result information is that the handover failure was caused by consecutive LBT failures on all BWPs.

3. The wireless communication method according to claim 2, characterized in that, After recording the first result information in the RLF report, the process also includes: Trigger Radio Resource Control (RRC) connection re-establishment to the second target cell in the shared spectrum network, and perform LBT; If it is determined that continuous LBT failures occur on all bandwidth portions of the BWP, a third result information is recorded in the RLF report, which is that no RRC connection re-establishment request was sent due to continuous LBT failures on all BWPs. The second target cell is the source cell, the first target cell, or a cell other than the source cell and the first target cell.

4. The wireless communication method according to claim 2, characterized in that, The first result information is recorded in the RLF report using a first designated identifier.

5. The wireless communication method according to claim 2, characterized in that, The first result information also includes: random access information of LBT failures of the UE on all BWPs.

6. The wireless communication method according to claim 3, characterized in that, The third result information also includes the terminal re-establishment cell identifier information; The third result information is recorded in the RLF report using the second specified identification information, and the terminal re-establishment cell identification information is set to null in the second specified identification information.

7. The wireless communication method according to any one of claims 1-6, characterized in that, Also includes: Record at least one of the following information in at least one of the RLF report, random access report, and handover success report: RSSI measurement results of source cell and neighboring cells; The source cell and neighboring cells use identification information to record whether the channel is occupied.

8. The wireless communication method according to claim 1 or 5, characterized in that, The random access information includes at least one of the following: The random access channel (RACH) frequency resources used in each random access process; At least one of the following involved in each random access process: the Synchronization Signal Block (SSB), the Downlink Reference Signal Index (CSI-RS index), and the number of random access attempts (Preambles) transmitted in the SSB and CSI-RS index; Indication information indicating whether the cell signal quality is higher than the SSB threshold during each random access attempt in each random access procedure, and indication information indicating whether a contention-based random access procedure is detected during each random access attempt; The two-step random access instruction indicates whether to revert to the four-step random access instruction on each attempt. Cell signal quality measured prior to the 2-step random access procedure; During the LBT process before each random access, is there an identifier indicating whether consecutive LBT failures have occurred? The number of times LBT failures occur during multiple random access attempts while accessing the target cell.

9. The method according to claim 1, characterized in that, When the target instruction is used to instruct the UE to perform a primary / secondary cell switch or add a primary / secondary cell, the method further includes: If an LBT failure occurs during random access to a target primary or secondary cell, the LBT failure information is recorded in at least one of the following reports: the SCG failure message and the successful primary or secondary cell change report, based on the primary / secondary cell change result or the primary / secondary cell addition result.

10. The wireless communication method according to claim 9, characterized in that, If the primary / secondary cell transition result is a primary / secondary cell transition failure, or the primary / secondary cell addition result is a primary / secondary cell addition failure, then recording LBT failure information in at least one of the SCG failure messages and successful primary / secondary cell transition reports includes: The LBT failure information is recorded in the SCG failure message, and the LBT failure information includes LBT failure indication information; The LBT failure indication information is used to indicate that the primary / secondary cell switching or the addition of a primary / secondary cell failed due to LBT failure.

11. The wireless communication method according to claim 9, characterized in that, If the primary / secondary cell transition result is a primary / secondary cell transition failure, or the primary / secondary cell addition result is a primary / secondary cell addition failure, then recording LBT failure information in at least one of the SCG failure messages and successful primary / secondary cell transition reports includes: LBT failure information is recorded in the random access information of the SCG failure message, and the LBT failure information includes at least one of the following: This is used to indicate whether consecutive LBT failures have occurred during the LBT process before each random access attempt; The number of times LBT failures occur during multiple random access attempts while accessing the target cell.

12. The wireless communication method according to claim 9, characterized in that, If the primary / secondary cell transition result is a successful primary / secondary cell transition and a successful primary / secondary cell transition report is generated, or the primary / secondary cell addition result is a successful primary / secondary cell addition and a successful primary / secondary cell transition report is generated, then recording LBT failure information in at least one of the SCG failure messages and successful primary / secondary cell transition reports includes: LBT failure information is recorded in the random access information section of the successful primary / secondary cell transition report, and the LBT failure information includes at least one of the following: This is used to indicate whether consecutive LBT failures have occurred during the LBT process before each random access attempt; The number of times LBT failures occur during multiple random access attempts while accessing the target cell.

13. The wireless communication method according to any one of claims 8, 11, or 12, characterized in that, The number of times LBT failures occur during multiple random access attempts includes at least one of the following: The number of LBT failures occurring per beam; The total number of LBT failures occurring across all beams.

14. A user equipment, characterized in that, include: The LBT module is used to determine whether to perform Listen-Before-Speak LBT based on the received target instructions. The report recording module is used to record LBT failure information in at least one of the following reports, namely Radio Link Failure (RLF) report, Random Access report, and Handover Success report, based on the handover result, if it is determined that an LBT failure occurred during random access to the target cell when the target instruction is used to instruct the UE to hand over from the source cell to the first target cell in the shared spectrum network. The step of recording LBT failure information in at least one of the following reports based on the handover result: Radio Link Failure (RLF) report, Random Access report, and Handover Success report includes: If the handover result is a successful handover, then a second result information is recorded in at least one of the RLF report, random access report, and handover success report. The second result information is the random access information of LBT failure on at least one BWP before the successful handover.

15. A user equipment, characterized in that, Includes memory, transceiver, and processor: A memory for storing computer programs; a transceiver for sending and receiving data under the control of the processor; and a processor for reading the computer programs from the memory and performing the following operations: Based on the received target instruction, if the UE is instructed to switch from the source cell to the first target cell in the shared spectrum network, and if it is determined that an LBT failure occurred during the random access to the target cell, then based on the handover result, the LBT failure information is recorded in at least one of the following reports: Radio Link Failure (RLF) report, Random Access report, and Handover Success report. The step of recording LBT failure information in at least one of the following reports based on the handover result: Radio Link Failure (RLF) report, Random Access report, and Handover Success report includes: If the handover result is a successful handover, then a second result information is recorded in at least one of the RLF report, random access report, and handover success report. The second result information is the random access information of LBT failure on at least one BWP before the successful handover.

16. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the steps of the wireless communication method as described in any one of claims 1 to 13.

17. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that cause the computer to perform the steps of the wireless communication method as described in any one of claims 1 to 13.

Images