Method and apparatus in communication node used for wireless communication

Abstract

The present application discloses a method and apparatus in a communication node used for wireless communication. The method comprises: a communication node sends first signaling, the first signaling comprising a measurement report; determines a connection failure; and sends a first message, the first message comprising a first field, the first field indicating a time interval between a first time and a second time, the first time depending on the sending of the first signaling, and the second time depending on the determination of connection failure. According to the method provided in the present application, a time interval between a first time and a second time is indicated, thereby facilitating network optimization and improving mobility performance.

Description

A method and apparatus for use in a communication node for wireless communication Technical Field

[0001] This application relates to transmission methods and apparatus in wireless communication systems, and more particularly to methods and apparatus for transmitting connection failure information. Background Technology

[0002] With the continuous development of wireless communication, the requirements for mobility, transmission latency, and system capacity are becoming increasingly stringent. In Release 18 (R18), the 3GPP (3rd Generation Partner Project) completed the standardization of L1 / L2 Triggered Mobility (LTM) through the "Further NR mobility enhancements" work item (WI). For intra-DU (Distributed Unit) scenarios, the base station pre-configures the configuration information of LTM candidate cells, the UE (User Equipment) periodically reports measurement information, and the base station triggers handover through the LTM cell switch command MAC (Medium Access Control) CE (Control Element), thereby reducing handover latency. To further enhance LTM (Location-Based Measurement), event-triggered L1 (Layer 1) measurement reporting, conditional LTM, and inter-CU (Centralized Unit) LTM have become an important research direction in 3GPP Release 19. Additionally, to further enhance mobility, AI (Artificial Intelligence) / ML (Machine Learning) based mobility has become an important research direction in 3GPP Release 19 and future protocol versions.

[0003] Self-Organizing Networks (SON) include network self-configuration and self-optimization. 3GPP (the 3rd Generation Partnership Project) approved the "Data collection for SON (Self-Organizing Networks) / MDT (Minimization of Drive Tests) in NR standalone and MR-DC (Multi-Radio Dual Connectivity) Phase 4" work item (WI) in RAN#102, which includes MRO enhancements for R18 mobility enhancements, including LTM, CHO with candidate SCGs, and subsequent CPAC. Summary of the Invention

[0004] In existing technologies, the UE sends measurement reports to assist the network in making mobility decisions. The inventors have discovered that after the UE sends a measurement report, channel quality may change, potentially triggering a Radio Link Failure (RLF) or Handover Failure (HOF) before receiving a handover command from the network. This problem is particularly pronounced when event-triggered L1 measurement reports are introduced. Therefore, optimizing mobility performance is a problem that needs to be addressed.

[0005] To address the aforementioned problems, this application provides a solution. While using an NR system as an example in the problem description, this application is also applicable to scenarios such as LTE (Long-Term Evolution) or LTE-A (Long-Term Evolution Advanced) systems, achieving similar technical effects to NR systems, 5G+, 6G, and future wireless communication systems. Furthermore, although this application provides a specific implementation method for connection failure, it can also be used in scenarios such as connection failure recovery failure, achieving similar technical effects. Furthermore, adopting a unified design scheme for different scenarios helps reduce hardware complexity and cost. Furthermore, although this application provides a specific implementation method for LTM scenarios, it can also be used in AI scenarios, achieving similar technical effects. Furthermore, although this application provides a specific implementation method for RLF, it can also be used in scenarios such as HOF, achieving similar technical effects. Furthermore, although this application provides a specific implementation method for RLF detection, it can also be used in scenarios such as RLF prediction, achieving similar technical effects. Furthermore, although this application was initially intended for the Uu air interface, it can also be used for the PC5 interface to achieve similar technical effects. Furthermore, although this application was initially intended for terminal and base station scenarios, it is also applicable to V2X (Vehicle-to-Everything) scenarios, communication scenarios between terminals and relays, and between relays and base stations, achieving similar technical effects. Furthermore, although this application was initially intended for terminal and base station scenarios, it is also applicable to IAB (Integrated Access and Backhaul) communication scenarios, achieving similar technical effects. Furthermore, although this application was initially intended for terrestrial network (TN) scenarios, it is also applicable to non-terrestrial network (NTN) communication scenarios, achieving similar technical effects. In addition, adopting a unified solution for different scenarios helps reduce hardware complexity and cost.

[0006] As an example, the interpretation of the terminology in this application is based on the definitions in the 3GPP specification protocol TS36 series.

[0007] As an example, the interpretation of terms in this application is based on the definitions in the 3GPP specification protocol TS38 series.

[0008] As an example, the interpretation of terms in this application is based on the definitions in the 3GPP specification protocol TS37 series.

[0009] As an example, the interpretation of terms in this application is based on the definitions in 3GPP's 6G and future specification protocols.

[0010] It should be noted that, unless otherwise specified, the embodiments and features in any node of this application can be applied to any other node. Furthermore, unless otherwise specified, the embodiments and features in any embodiment of this application can be arbitrarily combined with each other.

[0011] This application discloses a method used in a first node of wireless communication, characterized by comprising:

[0012] Send a first signaling message; wherein the first signaling message includes a measurement report;

[0013] Connection failed;

[0014] Send the first message;

[0015] The first message includes a first field indicating a time interval between a first time and a second time; the first time depends on the sending of the first signaling, and the second time depends on the determination of connection failure.

[0016] As an example, the problem this application aims to solve includes: how to optimize mobility performance; the above method solves the above problem by sending a first message indicating the time interval between the first time and the second time.

[0017] As an example, the problem to be solved by this application includes: how to determine the first message; in the above method, the first message indicates the time interval between the first time and the second time, thereby solving the above problem.

[0018] As an example, the problem this application aims to solve includes: how to determine the first time; in the above method, the first time depends on the sending of the first signaling, thereby solving the above problem.

[0019] As an example, the problem this application aims to solve includes: how to determine a second time; in the above method, the second time depends on the determination of connection failure, thereby solving the above problem.

[0020] As an example, the above method helps the network obtain the time interval between the first time and the second time.

[0021] As an example, the above method is beneficial for optimizing measurement reports.

[0022] As an example, the above method is beneficial for network optimization.

[0023] As an example, the above method helps to improve the robustness of mobility.

[0024] According to one aspect of this application, it is characterized by comprising:

[0025] As a response to the determination of connection failure, a first information block is set in a first variable, the first information block including a second field;

[0026] Receive the second message;

[0027] The receipt of the second message triggers the sending of the first message; the first message includes at least the second field of the first information block, and the second field is the same as the first field.

[0028] As an example, the problem this application aims to solve includes: how to trigger the first message; in the above method, receiving the second message triggers sending the first message, thereby solving the above problem.

[0029] As an example, the above method sends the first message based on network scheduling.

[0030] As an example, the above method avoids unnecessary information reporting.

[0031] As an example, the above method reduces signaling overhead.

[0032] According to one aspect of this application, the determination of connection failure triggers the sending of the first message.

[0033] As an example, the problem this application aims to solve includes: how to trigger the first message; in the above method, determining the connection failure triggers the sending of the first message, thereby solving the above problem.

[0034] As an example, the above method facilitates the timely transmission of the first message.

[0035] As an example, the above method is beneficial for timely reporting of the time interval between the first and second time points.

[0036] As an example, the above method facilitates timely network optimization.

[0037] According to one aspect of this application, it is characterized by comprising:

[0038] Receive a first RRC message; wherein the first RRC message includes a first condition;

[0039] The first condition is triggered to send the first signaling when the first condition is met; the first condition includes at least one of the following: the measurement result for the first candidate cell is better than a first threshold or the measurement result for the first serving cell is worse than a second threshold.

[0040] As an example, the problem to be solved by this application includes: how to trigger the first signaling; in the above method, the first condition is met to trigger the sending of the first signaling, thereby solving the above problem.

[0041] As an example, in the above method, when the first condition is met and the sending of the first signaling is triggered, the first message indicates the time interval between the first time and the second time, which is beneficial for optimizing the first condition.

[0042] According to one aspect of this application, the first message includes a third field indicating the first condition.

[0043] As an example, the problem to be solved by this application includes: how to determine the first message; in the above method, the first message indicates the time interval between the first time and the second time and the first condition, thereby solving the above problem.

[0044] As an example, this facilitates the network in obtaining configuration information for the first condition.

[0045] As an example, the above method is beneficial for optimizing measurement reporting configuration.

[0046] As an example, the above method is beneficial for optimizing mobility performance from the first serving cell to the first candidate cell.

[0047] As an example, the above method is beneficial for optimizing the parameters of the first condition.

[0048] As an example, the above method facilitates network mobility optimization based on a first threshold.

[0049] As an example, the above method facilitates network mobility optimization based on a second threshold.

[0050] According to one aspect of this application, the first RRC message includes a second condition; wherein the second condition includes at least one of a measurement result for the first candidate cell being worse than a third threshold or a measurement result for the first serving cell being better than a fourth threshold; the first message includes a fourth field indicating whether the second condition is met.

[0051] As an example, the problem to be solved by this application includes: how to determine the first message; in the above method, the first message indicates the time interval between the first time and the second time and whether the second condition is met, thereby solving the above problem.

[0052] As an example, this facilitates the network in obtaining information about whether the second condition is met.

[0053] As an example, it is beneficial for the network to obtain information on whether the second condition has been met between sending the first message and determining that the connection has failed.

[0054] As an example, the above method is beneficial for optimizing measurement reporting configuration.

[0055] As an example, the above method is beneficial for optimizing mobility performance from the first serving cell to the first candidate cell.

[0056] According to one aspect of this application, the first message includes a fifth field; wherein the fifth field includes at least one of a measurement result for the first candidate cell or a measurement result for the first serving cell at the time the first signaling is sent.

[0057] As an example, the problem to be solved by this application includes: how to determine the first message; in the above method, the first message indicates at least one of the time interval between the first time and the second time and the measurement result for the first candidate cell or the measurement result for the first serving cell when the first signaling is sent, thereby solving the above problem.

[0058] As an example, this facilitates the network in obtaining measurement information of the first candidate cell or the first serving cell when the first signaling is sent.

[0059] As an example, the above method is beneficial for optimizing measurement reporting configuration.

[0060] As an example, the above method is beneficial for optimizing mobility performance from the first serving cell to the first candidate cell.

[0061] According to one aspect of this application, the first RRC message includes configuration information of the first candidate cell; wherein the first signaling is for triggering a handover command indicating a handover to the first candidate cell; the handover command indicating a handover to the first candidate cell triggers the application of the configuration information of the first candidate cell.

[0062] As an example, the problem to be solved by this application includes: how to determine the first signaling; in the above method, the first signaling is to trigger a handover command indicating a handover to the first candidate cell; the handover command indicating a handover to the first candidate cell triggers the application of the configuration information of the first candidate cell, thereby solving the above problem.

[0063] As one embodiment, the first message includes at least one of the first domain, the third domain, the fourth domain, or the fifth domain.

[0064] This application discloses a method used in a second node for wireless communication, characterized by comprising:

[0065] Receive a first message; wherein the sender of the first message receives a first signaling; the first signaling includes a measurement report; the sender of the first message determines that the connection has failed;

[0066] The first message includes a first field indicating a time interval between a first time and a second time; the first time depends on the sending of the first signaling, and the second time depends on the determination of connection failure.

[0067] According to one aspect of this application, in response to the determination of connection failure, the sender of the first message sets a first information block in a first variable, the first information block including a second field; the sender of the first message receives a second message; wherein the receipt of the second message triggers the sending of the first message; the first message includes at least the second field of the first information block, the second field being the same as the first field.

[0068] According to one aspect of this application, the determination of connection failure triggers the sender of the first message to send the first message.

[0069] According to one aspect of this application, the sender of the first message receives a first RRC message; wherein the first RRC message includes a first condition; wherein the first condition being met triggers the transmission of the first signaling; the first condition includes at least one of a measurement result for a first candidate cell being better than a first threshold or a measurement result for a first serving cell being worse than a second threshold.

[0070] According to one aspect of this application, the first message includes a third field indicating the first condition.

[0071] According to one aspect of this application, the first RRC message includes a second condition; wherein the second condition includes at least one of a measurement result for the first candidate cell being worse than a third threshold or a measurement result for the first serving cell being better than a fourth threshold; the first message includes a fourth field indicating whether the second condition is met.

[0072] According to one aspect of this application, the first message includes a fifth field; wherein the fifth field includes at least one of a measurement result for the first candidate cell or a measurement result for the first serving cell at the time the first signaling is sent.

[0073] According to one aspect of this application, the first RRC message includes configuration information of the first candidate cell; wherein the first signaling is for triggering a handover command indicating a handover to the first candidate cell; the handover command indicating a handover to the first candidate cell triggers the application of the configuration information of the first candidate cell.

[0074] This application discloses a first node used for wireless communication, characterized in that it comprises:

[0075] The first transmitter sends a first signaling message; wherein the first signaling message includes a measurement report;

[0076] First processor, connection failed;

[0077] The first transmitter sends the first message;

[0078] The first message includes a first field indicating a time interval between a first time and a second time; the first time depends on the sending of the first signaling, and the second time depends on the determination of connection failure.

[0079] This application discloses a second node used for wireless communication, characterized in that it comprises:

[0080] A second receiver receives a first message; wherein the sender of the first message receives a first signaling; the first signaling includes a measurement report; and the sender of the first message determines that the connection has failed.

[0081] The first message includes a first field indicating a time interval between a first time and a second time; the first time depends on the sending of the first signaling, and the second time depends on the determination of connection failure.

[0082] As an example, compared with conventional solutions, this application has the following advantages:

[0083] - It helps the network obtain the time interval between the first and second time points;

[0084] - It facilitates the optimization of measurement reports;

[0085] - It is beneficial for network optimization;

[0086] - It improves the robustness of moving lines. Attached Figure Description

[0087] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0088] Figure 1 shows a flowchart of the transmission of the first node according to an embodiment of this application;

[0089] Figure 2 shows a schematic diagram of a network architecture according to an embodiment of this application;

[0090] Figure 3 illustrates a schematic diagram of an embodiment of a wireless protocol architecture for the user plane and control plane according to an embodiment of this application;

[0091] Figure 4 shows a schematic diagram of a first communication device and a second communication device according to an embodiment of this application;

[0092] Figure 5 shows a flowchart of wireless signal transmission according to an embodiment of this application;

[0093] Figure 6 shows a schematic diagram of the time interval between a first time and a second time according to an embodiment of this application;

[0094] Figure 7 shows a schematic diagram of a first message according to an embodiment of this application;

[0095] Figure 8 shows a schematic diagram of a first message according to another embodiment of this application;

[0096] Figure 9 shows a schematic diagram of a first message according to yet another embodiment of this application;

[0097] Figure 10 shows a schematic diagram of the first signaling according to an embodiment of this application;

[0098] Figure 11 shows a structural block diagram of a processing apparatus for a first node according to an embodiment of the present application;

[0099] Figure 12 shows a structural block diagram of a processing apparatus for a second node according to an embodiment of this application. Detailed Implementation

[0100] The technical solution of this application will be further described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0101] Example 1

[0102] Example 1 illustrates a flowchart of the transmission of a first node according to an embodiment of this application, as shown in Figure 1. In Figure 1, each box represents a step, and it is particularly important to emphasize that the order of the boxes in the figure does not represent the temporal sequence of the steps represented.

[0103] In Embodiment 1, the first node in this application sends a first signaling in step 101, wherein the first signaling includes a measurement report; in step 102, it determines that the connection has failed; in step 103, it sends a first message, wherein the first message includes a first field, the first field indicating the time interval between a first time and a second time; the first time depends on the sending of the first signaling, and the second time depends on the determination of connection failure.

[0104] As an example, the first signaling is an RRC (Radio Resource Control) message.

[0105] As one embodiment, the first signaling is sent through the serving cell of the first node.

[0106] As an example, the first signaling is sent via MCG (Master Cell Group).

[0107] As an example, the first signaling is transmitted via SRB1 (Signalling Radio Bearer 1).

[0108] As an example, the first signaling is sent via SCG (Secondary Cell Group).

[0109] As an example, the first signaling is sent via N3C (Non-3GPP Connection).

[0110] As an example, the first signaling is sent via split SRB1.

[0111] As an example, the first signaling is transmitted via SRB3 (Signalling Radio Bearer 3).

[0112] As an example, the first signaling is sent via split SRB1 or SRB3.

[0113] As an example, the first signaling includes a MeasurementReport message.

[0114] As an example, the first signaling includes an MCGFailureInformation message.

[0115] As an example, the first signaling is a MeasurementReport message.

[0116] As an example, the first signaling is an MCGFailureInformation message.

[0117] As an example, the first signaling includes a MAC (Medium Access Control) CE (Control Element).

[0118] As an example, the first signaling is a MAC CE.

[0119] As an example, the first signaling is an LTM Cell Switch Command MAC CE.

[0120] As an example, the first signaling includes a UCI (Uplink Control Information).

[0121] As an example, the first signaling is a UCI.

[0122] As an example, the first signaling including a measurement report means that the first signaling is a measurement report.

[0123] As an example, the first signaling including a measurement report means that the first signaling carries a measurement report.

[0124] As an example, the first signaling including a measurement report means that the first signaling carries a measurement report.

[0125] As an example, the first signaling including a measurement report means that the first signaling indicates a measurement report.

[0126] As an example, the measurement report includes an index that indicates the measurement report.

[0127] As an example, the index is the index of the measurement report.

[0128] As an example, the index is an index of the measurement configuration associated with the measurement report.

[0129] As an example, the index is the measurement identifier associated with the measurement report.

[0130] As an example, the index is an index of the uplink resources associated with the measurement report.

[0131] As an example, the index is configured with RRC.

[0132] As an example, the index is a non-negative integer.

[0133] As an example, the index is a positive integer.

[0134] As an example, the index is no greater than N1; N1 is a positive integer.

[0135] As an example, N1 is predefined.

[0136] As an example, N1 is configurable.

[0137] As an example, N1 is an indication of the UE capability of the first node.

[0138] As an example, the measurement report includes the PCI (physical cell identity) of the PCell (Primary Cell); wherein the connection failure is MCG RLF.

[0139] As an example, the measurement report includes the PCI of the PSCell (Primary SCG Cell); wherein the connection failure is the SCG RLF.

[0140] As an example, the measurement report includes measurement results of at least one serving cell of the first node.

[0141] As an example, the measurement report includes measurement results from at least one neighboring cell of the first node.

[0142] As an example, the measurement report includes measurement results of at least one candidate cell of the first node.

[0143] As an example, the measurement report includes prediction results for at least one serving cell of the first node.

[0144] As an example, the measurement report includes prediction results of at least one neighboring cell of the first node.

[0145] As an example, the measurement report includes prediction results for at least one candidate cell of the first node.

[0146] As an example, the measurement report includes measurement results for layer 3 (L3).

[0147] As an example, the measurement results are cell-level measurement results.

[0148] As an example, the measurement report includes the measurement results of L1 (layer 1).

[0149] As an example, the measurement results are beam-level measurement results.

[0150] As an example, the measurement results are unfiltered.

[0151] As an example, the measurement results are L1 filtered.

[0152] As an example, the measurement results are L3 filtered.

[0153] As an example, the measurement results include the RSRP (Reference Signal Received Power) of at least one reference signal.

[0154] As one embodiment, the reference signal includes a synchronization signal.

[0155] As an example, the reference signal is an SSB (Synchronization Signal Block).

[0156] As an example, the reference signal is CSI-RS (Channel State Information Reference Signal).

[0157] As an example, the reference signal is an SSB or a CSI-RS.

[0158] As an example, a connection failure is determined in an RRC state other than the RRC_IDLE state.

[0159] As an example, the connection failure is determined in the RRC connection (RRC_CONNECTED) state.

[0160] As an example, connection failure is determined when the RRC is inactive (RRC_INACTIVE) state.

[0161] As an example, a protocol entity above the RRC entity of the first node determines that the connection has failed.

[0162] As an example, the RRC entity of the first node determines that the connection has failed.

[0163] As an example, the first node determines the connection failure at a protocol layer above the RRC sublayer.

[0164] As an example, the first node determines that the connection has failed at the RRC sublayer.

[0165] As an example, the first node is configured with at least a first serving cell; the first serving cell is PCell.

[0166] As one embodiment, the first node is configured with at least a first serving cell and a second serving cell; the first serving cell is PCell, and the second serving cell is PSCell.

[0167] As an example, the first node is configured only for the first cell group; the first cell group is an MCG.

[0168] As one embodiment, the first node is configured with a first cell group and a second cell group; the first cell group is an MCG and the second cell group is an SCG.

[0169] As an example, the first serving cell is the primary cell in the first cell group.

[0170] As an example, the first serving cell is the primary cell in the first cell group, and the second serving cell is the primary cell in the second cell group.

[0171] As an example, the connection failure is a handover failure (HOF).

[0172] As an example, the connection failure is a radio link failure (RLF).

[0173] As an example, the connection failure is the first serving cell RLF.

[0174] As an example, the connection failure is the first cell group RLF.

[0175] As an example, the connection failure is the second serving cell RLF.

[0176] As an example, the connection failure is the second cell group RLF.

[0177] As an example, determining connection failure means: determining handover failure.

[0178] As an example, when the T304 for the first cell group expires, the handover is determined to have failed.

[0179] As an example, determining connection failure means: determining that the first cell group connection has failed.

[0180] As an example, determining that the first cell group connection has failed means detecting an RLF (Relational Link Failure) in the first cell group.

[0181] As an example, determining that the first cell group connection has failed means: considering that the first cell group has been detected as having an RLF (Relational Link Failure).

[0182] As an example, determining that the first cell group connection has failed means receiving an indication that the first cell group RLF has been detected.

[0183] As an example, determining that the first cell group connection has failed means predicting the first cell group RLF.

[0184] As an example, determining that the first cell group connection has failed means that the first cell group is considered to have an RLF (Relational Link Failure).

[0185] As an example, determining that the first cell group connection has failed means receiving an indication that the first cell group RLF has been predicted.

[0186] As an example, a connection failure is determined when T310 in the first serving cell expires, or when T312 in the first serving cell expires, or when a random access problem indication is received from the MAC of the first cell group and T300, T301, T304, T311, and T319 are not running, or when a random access problem indication is received from the MAC of the first cell group and T300, T301, T304, T311, and T319 are not running and the SDT process is not in progress, or when an indication from the RLC of the first cell group that the maximum number of retransmissions has been reached and the SDT process is not in progress, or when an LBT failure indication is received from the MAC of the first cell group and T304 is not running.

[0187] As an example, determining connection failure means: determining that the connection to the second cell group has failed.

[0188] As an example, determining that the second cell group connection has failed means detecting a second cell group RLF.

[0189] As an example, determining that the second cell group connection has failed means that the second cell group has been detected as having an RLF (Relational Link Failure).

[0190] As an example, determining that the second cell group connection has failed means receiving an indication that the second cell group RLF has been detected.

[0191] As an example, determining that the second cell group connection has failed means predicting the second cell group RLF.

[0192] As an example, determining that the second cell group connection has failed means that the second cell group is considered to have an RLF (Relational Link Failure).

[0193] As an example, determining that the second cell group connection has failed means receiving an indication that the second cell group RLF has been predicted.

[0194] As an example, determining that the second cell group connection failed means that the second cell group configuration failed.

[0195] As an example, determining that the second cell group connection has failed means that the second cell group synchronization reconfiguration has failed.

[0196] As an example, determining that the second cell group connection has failed means receiving an integrity check failure indication from SCG lower layers concerning SRB3.

[0197] As an example, when T310 in the second serving cell expires, or when T312 in the second serving cell expires, or when a random access problem indication is received from the MAC of the second cell group and T300, T301, T304, T311, and T319 are not running, or when a random access problem indication is received from the MAC of the second cell group and T300, T301, T304, T311, and T319 are not running and the SDT process is not in progress, or when an indication from the RLC of the second cell group that the maximum number of retransmissions has been reached and the SDT process is not in progress, or when an LBT failure indication is received from the MAC of the second cell group and T304 is not running, or, a connection failure is determined.

[0198] As an example, determining connection failure means: determining that MCG fast recovery has failed.

[0199] As an example, the failure of MCG fast recovery means that T316 has expired.

[0200] As an example, the MCG fast recovery failure means that no response to the first signaling was received during the operation of T316.

[0201] As an example, when T316 expires, the connection is determined to have failed.

[0202] As an example, the first message is an RRC message.

[0203] As an example, the first message is sent through the serving cell of the first node.

[0204] As an example, the first message is sent via MCG.

[0205] As an example, the first message is sent via SRB1.

[0206] As an example, the first message is sent via SCG.

[0207] As an example, the first message is sent via N3C.

[0208] As an example, the first message is sent via split SRB1.

[0209] As an example, the first message is sent via SRB3.

[0210] As an example, the first message is sent via split SRB1 or SRB3.

[0211] As an example, the first message includes a MAC CE.

[0212] As an example, the first message includes a UCI.

[0213] As an example, the first message is a UCI.

[0214] As an example, the first message is a UEInformationResponse message.

[0215] As an example, the first message is an MCGFailureInformation message.

[0216] As an example, the first message is an SCGFailureInformation message.

[0217] As an example, the first message is a UEAssistanceInformation message.

[0218] As an example, the first message is an RRCReestablishmentRequest message.

[0219] As an example, the first message is an RRCResumeRequest message.

[0220] As an example, the first message is an RRCResumeRequest1 message.

[0221] As an example, the first message is a field whose name includes RLF-Report.

[0222] As an example, the first message is an RLF-Report-r16 field.

[0223] As an example, the first message is a FailureReportMCG field.

[0224] As an example, the first message is a FailureReportSCG field.

[0225] As one example, the first message includes the PCI of the first serving cell.

[0226] As an example, the first message includes the PCI of the first candidate cell.

[0227] As one example, the first message includes measurement results.

[0228] As an example, the measurement result is the latest measurement result when the connection failure is determined.

[0229] As an example, the measurement results include the measurement results of the first serving cell.

[0230] As an example, the measurement results include the measurement results of the first candidate cell.

[0231] As an example, the measurement results include the measurement results of the at least one neighboring cell.

[0232] As one example, the first message includes the prediction result.

[0233] As an example, the prediction result is the latest prediction result when the connection is determined to have failed.

[0234] As an example, the prediction result includes the prediction result of the first serving cell.

[0235] As an example, the prediction result includes the prediction result of the first candidate cell.

[0236] As an example, the prediction results include the prediction results of the at least one neighboring cell.

[0237] As an example, the name of the first field includes "time".

[0238] As an example, the name of the first field includes timeSince.

[0239] As an example, the name of the first field includes timeSinceReport.

[0240] As an example, the name of the first field includes timeSinceMeasurementReport.

[0241] As an example, the first field explicitly indicates the time interval between the first time and the second time.

[0242] As an example, the first field implicitly indicates the time interval between the first time and the second time.

[0243] As an example, the value of the first field is equal to the time interval between the first time and the second time.

[0244] As an example, the first field is set to the time interval between the first time and the second time.

[0245] As an example, the value of the first field is equal to the length of the time interval between the first time and the second time.

[0246] As an example, the first field is set to the length of the time interval between the first time and the second time.

[0247] As one embodiment, the first domain includes a first subdomain and a second subdomain, the first subdomain being set to the first time and the second subdomain being set to the second time.

[0248] As an example, the time interval between the first time and the second time refers to the time elapsed from the first time to the second time.

[0249] As an example, the time interval between the first time and the second time refers to the difference between the second time and the first time.

[0250] As an example, the accompanying transmission of the first signaling refers to the process of transmitting the first signaling.

[0251] As an example, the accompanying transmission of the first signaling means before the first signaling is delivered to a lower layer.

[0252] As an example, "the first time depends on the transmission of the first signaling" means that the first time is related to the transmission of the first signaling.

[0253] As an example, "first time dependent on the sending of the first signaling" means that the first time is related to the time of sending the first signaling.

[0254] As an example, the first time depending on the sending of the first signaling means that the sending of the first signaling is used to determine the first time.

[0255] As an example, the first time depending on the sending of the first signaling means that the time of sending the first signaling is used to determine the first time.

[0256] As an example, the first time is the time when the first signaling is triggered.

[0257] As an example, the first time is a specified time after the time when the first signaling is triggered.

[0258] As an example, the first time is the time when the first signaling is sent.

[0259] As an example, the first time is a specified time after the time when the first signaling is sent.

[0260] As an example, the time when the first signaling is sent is the expiration time of the symbol occupied by the first signaling.

[0261] As an example, the time when the first signaling is sent is the expiration time of the time slot occupied by the first signaling.

[0262] As an example, the time when the first signaling is sent is the time when the first signaling is sent at the physical layer.

[0263] As an example, the time when the first signaling is sent is the time when the first signaling is sent at the MAC sublayer.

[0264] As an example, the time when the first signaling is sent is the time when the first signaling is first sent.

[0265] As an example, the first time is the time when the first signaling is successfully sent.

[0266] As an example, the first signaling being successfully sent means that the first node determines that the first signaling has been successfully sent based on its implementation.

[0267] As an example, the first signaling being successfully sent means that a response to the first signaling is received.

[0268] As an example, the first signaling being successfully sent means that an ACK for the first signaling is received.

[0269] As an example, the first signaling being successfully sent means that an ACK for the TB carrying the first signaling is received.

[0270] As an example, the second time-dependent determination of connection failure means that the second time is related to the time of the determination of connection failure.

[0271] As an example, the second time-dependent determination of connection failure means that the time of determining connection failure is used to determine the second time.

[0272] As one example, the second time is the time when the connection failure is determined.

[0273] As one example, the second time occurs after the connection failure is determined.

[0274] As one example, the second time is the time after the time when the connection failure was determined.

[0275] As an example, the second time is the time when the RRC connection re-establishment process is initiated after the connection loss is determined.

[0276] As one embodiment, the second time is the time after the connection loss is determined to be initiated to initiate the RRC connection recovery process.

[0277] As one example, the second time is the time after determining that the connection has been lost and then initiating cell selection.

[0278] As one embodiment, the second time is the time after the connection loss is determined to be lost, at which an uplink signaling is initiated.

[0279] As an example, the first signaling was successfully sent.

[0280] As an example, the first signaling was not successfully sent.

[0281] As an example, the first message indicates whether the first signaling was successfully sent.

[0282] As a sub-implementation of the above embodiments, the first message explicitly indicates whether the first signaling was successfully sent.

[0283] As a sub-implementation of the above embodiments, the first message implicitly indicates whether the first signaling was successfully sent.

[0284] Example 2

[0285] Example 2 illustrates a schematic diagram of a network architecture according to an embodiment of this application, as shown in Figure 2. Figure 2 illustrates network architecture 200. The network architecture 200 is a 5G NR (New Radio) / LTE (Long-Term Evolution) / LTE-A (Long-Term Evolution Advanced) system, or a 5G+ network architecture, or a 6G network architecture, or a future 3GPP network architecture; the network architecture 200 may be referred to as 5GS (5G System) / EPS (Evolved Packet System), or 6GS (6G System); the network architecture 200 includes at least one of UE (User Equipment) 201, RAN (Radio Access Network) 202, core network 210, HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and Internet service 230. The network architecture 200 can interconnect with other access networks, but these entities / interfaces are not shown for simplicity. As shown, the network architecture 200 provides packet-switched services; however, those skilled in the art will readily understand that the various concepts presented throughout this application can be extended to networks providing circuit-switched services or other cellular networks. The RAN includes node 203 and other nodes 204. Node 203 provides user and control plane protocol termination toward UE 201. Node 203 can be connected to other nodes 204 via an Xn interface (e.g., backhaul) / X2 interface. Node 203 may also be referred to as a base station, base transceiver station, radio base station, radio transceiver, transceiver function, basic service set (BSS), extended service set (ESS), TRP (transmitter-receiver node), or some other suitable term. The core network 210 is a 5GC (5G Core Network) / EPC (Evolved Packet Core), or the core network 210 is a 6GC; node 203 provides UE 201 with an access point to the core network 210.Examples of UE201 include cellular phones, smartphones, Session Initiation Protocol (SIP) phones, laptops, personal digital assistants (PDAs), satellite radios, non-terrestrial base station communications, satellite mobile communications, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband IoT devices, machine-type communication devices, land vehicles, automobiles, wearable devices, or any other similar functional devices. Those skilled in the art may also refer to UE201 as a mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handheld device, user agent, mobile client, client, or any other suitable term. Node 203 is connected to the core network 210 via an S1 / NG interface. The core network 210 includes an MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MMEs / AMFs / SMFs 214, an S-GW (Service Gateway) / UPF (User Plane Function) 212, and a P-GW (Packet Data Network Gateway) / UPF 213. The MME / AMF / SMF 211 is the control node that handles signaling between the UE 201 and the core network 210. Generally, the MME / AMF / SMF 211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through the S-GW / UPF 212, which is itself connected to the P-GW / UPF 213. The P-GW provides UE IP address allocation and other functions. The P-GW / UPF 213 is connected to the Internet service 230. Internet services 230 include operator-compliant Internet protocol services, which may specifically include the Internet, intranets, IMS (IP Multimedia Subsystem), and packet-switched streaming services.

[0286] As an example, the UE201 corresponds to the terminal described in this application.

[0287] As an example, the UE201 is the terminal described in this application.

[0288] As an example, the UE201 is a user equipment (UE).

[0289] As an example, the UE201 is a base station (BS).

[0290] As an example, the UE201 is a relay device.

[0291] As an example, the UE201 is a gateway device.

[0292] As an example, node 203 corresponds to the base station in this application.

[0293] As an example, node 203 is the base station described in this application.

[0294] As one example, node 203 is a base station device.

[0295] As one example, node 203 is a relay device.

[0296] As one example, node 203 is a gateway device.

[0297] As an example, the user equipment supports 3GPP Release 19.

[0298] As one example, the user equipment supports 5G.

[0299] As one example, the user equipment supports 6G.

[0300] As an example, the user equipment supports Radio Link Monitoring (RLM).

[0301] As one example, the user equipment supports handover.

[0302] As an example, the user equipment supports CHO.

[0303] As an example, the user equipment supports CPC.

[0304] As an example, the user equipment supports LTM.

[0305] As an example, the user equipment supports intra-CU LTM.

[0306] As an example, the user equipment supports inter-CU LTM.

[0307] As an example, the user equipment supports conditional LTM.

[0308] As an example, the user equipment supports event-triggered measurement reporting for LTM.

[0309] As one example, the user equipment supports transmission over a non-terrestrial network (NTN).

[0310] As an example, the user equipment supports terrestrial network transmission.

[0311] As an example, the user equipment supports dual connection (DC) transmission.

[0312] As one embodiment, the user equipment includes devices that support low-latency, high-reliability transmission.

[0313] As one embodiment, the user equipment can be a mobile terminal, such as a mobile phone, iPad, computer, watch, or ring; the user equipment can also be a wearable device, such as a watch, ring, shoes, hat, clothing, or glasses; the user equipment can also be an aircraft; the user equipment can also be a vehicle-mounted terminal; the user equipment can also be a shipborne terminal; the user equipment can also be an Internet of Things (IoT) terminal; the user equipment can also be an industrial IoT terminal; the user equipment can also be a testing device; the user equipment can also be a signaling tester; the user equipment can also be an IAB (Integrated Access and Backhaul)-MT.

[0314] As an example, the base station equipment supports transmission over non-terrestrial networks.

[0315] As one example, the base station equipment supports transmission over a terrestrial network.

[0316] As one embodiment, the base station equipment includes a Base Transceiver Station (BTS).

[0317] As one embodiment, the base station equipment includes a NodeB (NB); the NodeB can be a gNB, an eNB, an ng-eNB, or an en-gNB; the base station equipment can include a CU (Centralized Unit); the base station equipment can also include a DU (Distributed Unit); the base station equipment can also include a TRP (Transmitter Receiver Point).

[0318] As one embodiment, the base station equipment may be a macrocell base station, a microcell base station, a picocell base station, or a femtocell base station; the base station equipment may also be a flight platform equipment or a satellite equipment; the base station equipment may also be a testing equipment or a signaling tester; the base station equipment may also be a gateway equipment; the base station equipment may also be an IAB device; the IAB device includes at least one of IAB-node, IAB-donor, IAB-donor-CU, IAB-donor-DU, IAB-DU, or IAB-MT.

[0319] As one embodiment, the relay device may include a relay; the relay may be an L3 relay or an L2 relay; the relay device may also include a router; the relay device may also include a switch; the relay device may also include a gateway device; the relay device may also include at least a portion of user equipment; the relay device may also include at least a portion of base station equipment.

[0320] Example 3

[0321] Example 3 illustrates a schematic diagram of an embodiment of a wireless protocol architecture for a user plane and control plane according to this application, as shown in Figure 3. Figure 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300. Figure 3 shows the radio protocol architecture for the control plane 300 in three layers: Layer 1, Layer 2, and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (Physical Layer) signal processing functions. The L1 layer will be referred to herein as PHY 301. Layer 2 (L2 layer) 305 is above PHY 301 and includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security through encrypted data packets and provides cross-area mobility support. RLC sublayer 303 provides upper-layer packet segmentation and reassembly, retransmission of lost packets, and packet reordering to compensate for out-of-order reception caused by HARQ (Hybrid Automatic Repeat Request). MAC sublayer 302 provides multiplexing between the logical and transport channels. MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) within a cell. MAC sublayer 302 is also responsible for HARQ operations. RRC (Radio Resource Control) sublayer 306 in Layer 3 (L3) of the control plane 300 is responsible for acquiring radio resources (i.e., radio bearers) and using RRC signaling to configure the lower layers. The radio protocol architecture of user plane 350 includes Layer 1 (L1 layer) and Layer 2 (L2 layer). In user plane 350, the radio protocol architecture for physical layer 351, PDCP sublayer 354 in L2 layer 355, RLC sublayer 353 in L2 layer 355, and MAC sublayer 352 in L2 layer 355 is largely the same as the corresponding layers and sublayers in control plane 300. However, PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead. L2 layer 355 in user plane 350 also includes SDAP (Service Data Adaptation Protocol) sublayer 356. SDAP sublayer 356 is responsible for mapping between QoS streams and data radio bearers (DRBs) to support service diversity.

[0322] As an example, the wireless protocol architecture in Figure 3 is applicable to the first node in this application.

[0323] As an example, the wireless protocol architecture in Figure 3 is applicable to the second node in this application.

[0324] As an example, the first signaling in this application is generated in MAC302 or MAC352.

[0325] As an example, the first signaling in this application is generated in the PHY301 or PHY351.

[0326] As an example, the first message in this application is generated in the RRC306.

[0327] As an example, the first message in this application is generated by MAC302 or MAC352.

[0328] As an example, the first message in this application is generated by the PHY301 or PHY351.

[0329] As an example, the second message in this application is generated in the RRC306.

[0330] As an example, the second message in this application is generated by MAC302 or MAC352.

[0331] As an example, the second message in this application is generated in the PHY301 or PHY351.

[0332] As an example, the first RRC message in this application is generated in RRC306.

[0333] Example 4

[0334] Embodiment 4 illustrates a schematic diagram of a first communication device and a second communication device according to this application, as shown in Figure 4. Figure 4 is a block diagram of a first communication device 450 and a second communication device 410 communicating with each other in an access network.

[0335] The first communication device 450 includes a controller / processor 459, a memory 460, a data source 467, a transmitting processor 468, a receiving processor 456, a multi-antenna transmitting processor 457, a multi-antenna receiving processor 458, a transmitter / receiver 454, and an antenna 452.

[0336] The second communication device 410 includes a controller / processor 475, a memory 476, a receiver processor 470, a transmitter processor 416, a multi-antenna receiver processor 472, a multi-antenna transmitter processor 471, a transmitter / receiver 418, and an antenna 420.

[0337] In the transmission from the second communication device 410 to the first communication device 450, at the second communication device 410, upper-layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements L2 layer functionality. In the transmission from the second communication device 410 to the first communication device 450, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the first communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for retransmitting lost packets and signaling to the first communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). Transmit processor 416 performs encoding and interleaving to facilitate forward error correction (FEC) at the second communication device 410, and mapping of signal clusters based on various modulation schemes (e.g., Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK), M-Phase Shift Keying (M-PSK), M-QAM). Multi-antenna transmit processor 471 performs digital spatial precoding on the encoded and modulated symbols, including codebook-based and non-codebook-based precoding, and beamforming processing, generating one or more spatial streams. Transmit processor 416 then maps each spatial stream to subcarriers, multiplexes it with a reference signal (e.g., a pilot) in the time and / or frequency domains, and subsequently uses inverse fast Fourier transform (IFFT) to generate a physical channel carrying the time-domain multicarrier symbol stream. Multi-antenna transmit processor 471 then performs transmit analog precoding / beamforming operations on the time-domain multicarrier symbol stream. Each transmitter 418 converts the baseband multicarrier symbol stream provided by the multi-antenna transmitter processor 471 into an radio frequency stream, which is then provided to different antennas 420.

[0338] In the transmission from the second communication device 410 to the first communication device 450, at the first communication device 450, each receiver 454 receives a signal through its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the radio frequency carrier and converts the radio frequency stream into a baseband multicarrier symbol stream, which is then provided to the receiver processor 456. The receiver processor 456 and the multi-antenna receiver processor 458 implement various signal processing functions of the L1 layer. The multi-antenna receiver processor 458 performs receive analog precoding / beamforming operations on the baseband multicarrier symbol stream from the receiver 454. The receiver processor 456 uses a Fast Fourier Transform (FFT) to convert the baseband multicarrier symbol stream after the receive analog precoding / beamforming operations from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receiver processor 456, where the reference signal is used for channel estimation, and the data signal is recovered in the multi-antenna receiver processor 458 after multi-antenna detection to recover any spatial stream destined for the first communication device 450. Symbols on each spatial stream are demodulated and recovered in the receive processor 456, generating soft decisions. The receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper-layer data and control signals transmitted by the second communication device 410 over the physical channel. The upper-layer data and control signals are then provided to the controller / processor 459. The controller / processor 459 implements the functions of Layer 2. The controller / processor 459 may be associated with a memory 460 storing program code and data. The memory 460 may be referred to as computer-readable media. In the transmission from the second communication device 410 to the first communication device 450, the controller / processor 459 provides multiplexing, packet reassembly, decryption, header decompression, and control signal processing between the transport and logical channels to recover upper-layer data packets from the core network. The upper-layer data packets are then provided to all protocol layers above Layer 2. Various control signals may also be provided to Layer 3 for Layer 3 processing.

[0339] In the transmission from the first communication device 450 to the second communication device 410, at the first communication device 450, a data source 467 is used to provide upper-layer data packets to the controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmission functions at the second communication device 410 described in the transmission from the second communication device 410 to the first communication device 450, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocation, implementing L2 layer functions for the user plane and control plane. The controller / processor 459 is also responsible for retransmitting lost packets and signaling to the second communication device 410. Transmit processor 468 performs modulation mapping and channel coding processing, while multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based and non-codebook-based precoding, and beamforming processing. Subsequently, transmit processor 468 modulates the generated spatial stream into a multi-carrier / single-carrier symbol stream. After analog precoding / beamforming operations in multi-antenna transmit processor 457, the stream is provided to different antennas 452 via transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by multi-antenna transmit processor 457 into a radio frequency symbol stream before providing it to antenna 452.

[0340] In the transmission from the first communication device 450 to the second communication device 410, the function at the second communication device 410 is similar to the receiving function at the first communication device 450 described in the transmission from the second communication device 410 to the first communication device 450. Each receiver 418 receives radio frequency signals through its corresponding antenna 420, converts the received radio frequency signals into baseband signals, and provides the baseband signals to the multi-antenna receiving processor 472 and the receiving processor 470. The receiving processor 470 and the multi-antenna receiving processor 472 jointly implement the L1 layer functions. The controller / processor 475 implements the L2 layer functions. The controller / processor 475 may be associated with a memory 476 that stores program code and data. The memory 476 may be referred to as computer-readable media. In the transmission from the first communication device 450 to the second communication device 410, the controller / processor 475 provides multiplexing between the transmission and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover upper-layer data packets from the UE 450. Upper-layer packets from the controller / processor 475 can be provided to the core network.

[0341] As one embodiment, the first communication device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor, and the first communication device 450 at least: transmits a first signaling; wherein the first signaling includes a measurement report; determines a connection failure; a first transmitter transmits a first message; wherein the first message includes a first field, the first field indicating a time interval between a first time and a second time; the first time depends on the transmission of the first signaling, and the second time depends on the determination of connection failure.

[0342] As one embodiment, the first communication device 450 includes: a memory storing a computer-readable instruction program that, when executed by at least one processor, produces actions including: sending a first signaling; wherein the first signaling includes a measurement report; determining a connection failure; a first transmitter sending a first message; wherein the first message includes a first field indicating a time interval between a first time and a second time; the first time depends on the sending of the first signaling, and the second time depends on the determination of connection failure.

[0343] As one embodiment, the second communication device 410 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The second communication device 410 at least: receives a first message; wherein the sender of the first message receives first signaling; the first signaling includes a measurement report; the sender of the first message determines that a connection has failed; wherein the first message includes a first field, the first field indicating a time interval between a first time and a second time; the first time depends on the transmission of the first signaling, and the second time depends on the determination that a connection has failed.

[0344] As one embodiment, the second communication device 410 includes: a memory storing a computer-readable instruction program that, when executed by at least one processor, produces actions including: receiving a first message; wherein the sender of the first message receives first signaling; the first signaling includes a measurement report; the sender of the first message determines that a connection has failed; wherein the first message includes a first field indicating a time interval between a first time and a second time; the first time depends on the sending of the first signaling, and the second time depends on the determination that a connection has failed.

[0345] As one embodiment, at least one of the antenna 452, the transmitter 454, the transmission processor 468, and the controller / processor 459 is used to transmit the first signaling.

[0346] As one embodiment, at least one of the antenna 420, the receiver 418, the receiving processor 470, and the controller / processor 475 is used to receive the first signaling.

[0347] As an example, at least one of the antenna 452, the transmitter 454, the transmission processor 468, and the controller / processor 459 is used to transmit the first message.

[0348] As an example, at least one of the antenna 420, the receiver 418, the receiving processor 470, and the controller / processor 475 is used to receive the first message.

[0349] As an example, at least one of the antenna 452, the receiver 454, the receiving processor 456, and the controller / processor 459 is used to receive the second message.

[0350] As one embodiment, at least one of the antenna 420, the transmitter 418, the transmission processor 416, and the controller / processor 475 is used to transmit a second message.

[0351] As one embodiment, at least one of the antenna 452, the receiver 454, the receiving processor 456, and the controller / processor 459 is used to receive the first RRC message.

[0352] As an example, at least one of the antenna 420, the transmitter 418, the transmission processor 416, and the controller / processor 475 is used to transmit the first RRC message.

[0353] As an example, the first communication device 450 corresponds to the first node in this application.

[0354] As an example, the second communication device 410 corresponds to the second node in this application.

[0355] As an example, the third communication device 490 corresponds to the third node in this application.

[0356] As an example, the first communication device 450 is a user equipment.

[0357] As an example, the first communication device 450 is a base station device.

[0358] As an example, the first communication device 450 is a relay device.

[0359] As one embodiment, the second communication device 410 is a user equipment.

[0360] As one embodiment, the second communication device 410 is a base station device.

[0361] As an example, the second communication device 410 is a relay device.

[0362] Example 5

[0363] Example 5 illustrates a wireless signal transmission flowchart according to an embodiment of this application, as shown in Figure 5. It should be noted that the order in this example does not limit the signal transmission order or the order of implementation in this application.

[0364] For the first node U01:

[0365] In step S5101, a first RRC message is received; wherein the first RRC message includes a first condition; wherein the first condition is met to trigger the sending of the first signaling; the first condition includes at least one of the following: the measurement result for the first candidate cell is better than a first threshold or the measurement result for the first serving cell is worse than a second threshold;

[0366] In step S5102, a first signaling is sent; wherein the first signaling includes a measurement report;

[0367] In step S5103, it is determined that the connection failed;

[0368] In step S5104, as a response to the determination of connection failure, a first information block is set in a first variable, the first information block including a second field;

[0369] In step S5105, a second message is received; the receipt of the second message triggers the sending of the first message; the first message includes at least the second field of the first information block, and the second field is the same as the first field;

[0370] In step S5106, the first message is sent.

[0371] For the second node N02:

[0372] In step S5201, the first RRC message is sent;

[0373] In step S5202, the first signaling is received;

[0374] In step S5203, the first message is received.

[0375] For the third node N03:

[0376] In step S5301, the second message is sent;

[0377] In step S5302, the first message is received;

[0378] In step S5303, the first message is sent.

[0379] In Embodiment 5, the first message includes a first field indicating a time interval between a first time and a second time; the first time depends on the sending of the first signaling, and the second time depends on the determination of connection failure.

[0380] As an example, the first node U01 is a user equipment, and the second node N02 and the third node N03 are each a base station device.

[0381] As an example, the second node N02 is the third node N03.

[0382] As an example, the second node N02 is not the third node N03.

[0383] As an example, the second node N02 is an MN, and the third node N03 is an SN.

[0384] As an example, the second node N02 is an SN, and the third node N03 is an MN.

[0385] As an example, the second node N02 is one MN, and the third node N03 is another MN.

[0386] As one embodiment, the second node N02 is an MN, and the third node N03 is an N3C device.

[0387] As one embodiment, the second node N02 is an MN, and the third node N03 is a user equipment.

[0388] As an example, the N3C device is a WLAN terminal.

[0389] As an example, the N3C device is a WiFi AP.

[0390] As an example, the first node U01 is a user equipment, the second node N02 is a base station equipment, and the third node N03 is a management node.

[0391] As an example, the management node is a core network node.

[0392] As an example, the management node is a NAS node.

[0393] As an example, the management node is a Mobility Management Function (MME).

[0394] As one example, the management node includes an intelligent function.

[0395] As an example, the intelligent function is responsible for reasoning (also known as ML reasoning, or AI reasoning, or AI / ML reasoning).

[0396] As one example, the intelligent function is responsible for training (also known as ML training, or AI training, or AI / ML training).

[0397] As one example, the intelligent function is responsible for reasoning or training.

[0398] As one example, the intelligent function is used for AI or ML or AI / ML.

[0399] As one example, the intelligent function is used for AI or ML or AI / ML.

[0400] As an example, the first message indicates an index of a smart model; the smart function includes the smart model.

[0401] As an example, the first message indicates the type of a smart model; the smart function includes the smart model.

[0402] As an example, the first message indicates the functionality of an intelligent model; the intelligent functionality includes the intelligent model.

[0403] As an example, the intelligent model is based on a neural network.

[0404] As an example, the intelligent model is based on CNN (Conventional Neural Networks).

[0405] As an example, the smart model is based on the Transformer architecture.

[0406] As an example, the intelligent model is an AI model.

[0407] As an example, the intelligent model is an ML model.

[0408] As an example, the intelligent model is an AI / ML model.

[0409] As an example, the dashed box F5.1 is optional.

[0410] As an example, the dashed box F5.1 does not exist.

[0411] As a sub-implementation of the above embodiments, the first condition is not configured.

[0412] As a sub-implementation of the above embodiments, the first signaling is triggered periodically.

[0413] As a sub-implementation of the above embodiments, the first signaling is scheduled by the serving cell of the first node U01.

[0414] As a sub-implementation of the above embodiments, the first signaling is triggered by a condition other than the first condition.

[0415] As a sub-implementation of the above embodiments, the first signaling is triggered by an event configured for a candidate cell other than the first candidate cell.

[0416] As an example, the dashed box F5.1 is present.

[0417] As one embodiment, the first node U01 receives a first RRC message; sends a first signaling; wherein the first signaling includes a measurement report; determines that the connection has failed; and sends a first message; wherein the first RRC message includes a first condition; the first condition being met triggers the sending of the first signaling; the first condition includes at least one of a measurement result for a first candidate cell being better than a first threshold or a measurement result for a first serving cell being worse than a second threshold; the first message includes a first field, the first field indicating a time interval between a first time and a second time; the first time depends on the sending of the first signaling, and the second time depends on the determination of connection failure.

[0418] As a sub-implementation of the above embodiment, the second node N02 sends the first RRC message; receives the first signaling; and receives the first message.

[0419] As an example, the first RRC message includes a second information block, which indicates the first condition.

[0420] As an example, the first RRC message including the first condition means that the first RRC message includes at least one threshold of the first condition.

[0421] As a sub-implementation of the above embodiments, the at least one threshold includes one or more RSRP thresholds.

[0422] As a sub-implementation of the above embodiments, the at least one threshold includes one or more RSRQ (Reference Signal Received Quality) thresholds.

[0423] As a sub-implementation of the above embodiments, the at least one threshold includes one or more SINR (Signal to Interference plus Noise Ratio) thresholds.

[0424] As a sub-implementation of the above embodiments, the at least one threshold includes one or more time thresholds.

[0425] As a sub-implementation of the above embodiments, the at least one threshold includes one or more distance thresholds.

[0426] As an example, the first RRC message including a first condition means that the first RRC message includes at least one offset of the first condition.

[0427] As a sub-implementation of the above embodiments, the at least one offset includes one or more RSRP offsets.

[0428] As a sub-implementation of the above embodiments, the at least one offset includes one or more RSRQ offsets.

[0429] As a sub-implementation of the above embodiments, the at least one offset includes one or more SINR offsets.

[0430] As a sub-implementation of the above embodiments, the at least one offset includes one or more time offsets.

[0431] As a sub-implementation of the above embodiments, the at least one offset includes one or more distance offsets.

[0432] As an example, the first condition is to trigger a measurement report.

[0433] As an example, the first condition is to trigger an L1 measurement report.

[0434] As an example, the first condition is to trigger an L3 measurement report.

[0435] As an example, the first condition is for mobility.

[0436] As an example, the first condition is for switching.

[0437] As an example, the first condition is for PSCell change.

[0438] As an example, the first condition is CHO (Conditional Handover).

[0439] As an example, the first condition is CPC (Conditional PSCell Change).

[0440] As an example, the first condition is CPA (Conditional PSCell Addition).

[0441] As an example, the first condition is for LTM.

[0442] As an example, the first condition is for an event-triggered L1 measurement report for LTM.

[0443] As an example, the first condition is Event LTM2.

[0444] As an example, the first condition is the entry condition of Event LTM2.

[0445] As an example, the first condition is Event LTM3.

[0446] As an example, the first condition is the entry condition of Event LTM3.

[0447] As an example, the first condition is Event LTM4.

[0448] As an example, the first condition is the entry condition of Event LTM4.

[0449] As an example, the first condition is Event LTM5.

[0450] As an example, the first condition is the entry condition of Event LTM5.

[0451] As an example, the first condition being met triggering the sending of the first signaling means: in response to the first condition being met, sending the first signaling.

[0452] As an example, the first condition being met to trigger the sending of the first signaling means that the first signaling is sent under the premise that the first condition is met.

[0453] As an example, the first condition being met triggering the sending of the first signaling means that when the first condition is met, the first signaling is sent.

[0454] As an example, the first condition being met triggering the sending of the first signaling means that the first signaling is sent at least when the first condition is met.

[0455] As an example, the first condition includes the measurement result for the first candidate cell being better than the first threshold.

[0456] As a sub-implementation of the above embodiments, the first condition may also include other auxiliary conditions, which depend on at least one of time, location, or prediction results.

[0457] As a sub-example of the above embodiment, the first condition includes that the measurement result for the first candidate cell is better than the first threshold.

[0458] As a sub-example of the above embodiment, the first condition is that the measurement result for the first candidate cell is better than the first threshold.

[0459] As a sub-example of the above embodiment, the first condition includes the measurement result for the first candidate cell being better than the first threshold for a first target time.

[0460] As a sub-example of the above embodiment, the first condition is that the measurement result for the first candidate cell is better than the first threshold for a first target time.

[0461] As an example, the first condition includes the measurement result for the first serving cell being worse than the second threshold.

[0462] As a sub-implementation of the above embodiments, the first condition may also include other auxiliary conditions, which depend on at least one of time, location, or prediction results.

[0463] As a sub-example of the above embodiment, the first condition includes the measurement result for the first serving cell being worse than the second threshold.

[0464] As a sub-example of the above embodiment, the first condition is that the measurement result for the first serving cell is worse than the second threshold.

[0465] As a sub-example of the above embodiment, the first condition includes the measurement result for the first serving cell being worse than the second threshold for more than the second target time.

[0466] As a sub-example of the above embodiment, the first condition is that the measurement result for the first serving cell is worse than the second threshold for more than the second target time.

[0467] As an example, the first condition includes that the measurement result for the first candidate cell is better than the first threshold, and that the measurement result for the first serving cell is worse than the second threshold.

[0468] As a sub-implementation of the above embodiments, the first condition may also include other auxiliary conditions, which depend on at least one of time, location, or prediction results.

[0469] As a sub-implementation of the above embodiments, the first condition includes that the measurement result for the first candidate cell is better than the first threshold, and that the measurement result for the first serving cell is worse than the second threshold.

[0470] As a sub-implementation of the above embodiment, the first condition is that the measurement result for the first candidate cell is better than the first threshold, and the measurement result for the first serving cell is worse than the second threshold.

[0471] As a sub-implementation of the above embodiments, the first condition includes the measurement result for the first candidate cell being better than the first threshold for a first target time, and the measurement result for the first serving cell being worse than the second threshold for a second target time.

[0472] As a sub-implementation of the above embodiments, the first condition is that the measurement result for the first candidate cell is better than the first threshold for more than a first target time, and the measurement result for the first serving cell is worse than the second threshold for more than a second target time.

[0473] As a sub-implementation of the above embodiments, the first target time and the second target time are pre-configured.

[0474] As a sub-implementation of the above embodiments, the first target time and the second target time are configurable.

[0475] As a sub-implementation of the above embodiments, the first target time is the second target time.

[0476] As a sub-implementation of the above embodiments, the first target time is not the second target time.

[0477] As an example, the first target time is a TTT (Time-to-Trigger).

[0478] As an example, the first target time is pre-configured.

[0479] As an example, the first target time is at least one time slot.

[0480] As an example, the first target time is at least one millisecond.

[0481] As an example, the first threshold is pre-configured.

[0482] As an example, the first threshold is configurable.

[0483] As an example, the first threshold is a measurement result of the first serving cell.

[0484] As an example, the second target time is a TTT (Time To Time).

[0485] As an example, the second target time is pre-configured.

[0486] As one example, the second target time is at least one time slot.

[0487] As an example, the second target time is at least one millisecond.

[0488] As an example, the second threshold is pre-configured.

[0489] As one example, the second threshold is configurable.

[0490] As an example, the measurement results for the first candidate cell include the measurement quality of at least one reference signal resource for the first candidate cell.

[0491] As an example, the measurement results for the first candidate cell include the sum of the measurement quality of at least one reference signal resource of the first candidate cell and at least one offset.

[0492] As an example, the measurement results for the first candidate cell include an index of at least one reference signal resource for the first candidate cell.

[0493] As a sub-implementation of the above embodiments, the indexes of the at least one reference signal resource of the first candidate cell are sorted in ascending order of index number.

[0494] As a sub-example of the above embodiment, the indexes of the at least one reference signal resource of the first candidate cell are sorted from low to high according to the measurement quality.

[0495] As a sub-example of the above embodiment, the indexes of the at least one reference signal resource of the first candidate cell are sorted from high to low according to the measurement quality.

[0496] As an example, the measurement quality of the at least one reference signal resource of the first candidate cell is an RSRP.

[0497] As an example, the measurement quality of the at least one reference signal resource of the first candidate cell is an RSRQ.

[0498] As an example, the measurement quality of the at least one reference signal resource of the first candidate cell is at least one RSRP.

[0499] As an example, the measurement quality of the at least one reference signal resource of the first candidate cell is at least one RSRQ.

[0500] As an example, the measurement quality of at least one reference signal resource of the first candidate cell is unfiltered.

[0501] As an example, the measurement quality of the at least one reference signal resource of the first candidate cell is at least one measurement value of the at least one reference signal resource of the first candidate cell.

[0502] As an example, the measurement quality of the at least one reference signal resource of the first candidate cell is a value obtained by performing a first operation on at least one measurement value of the at least one reference signal resource of the first candidate cell.

[0503] As an example, the measurement results for the first serving cell include the measurement quality of at least one reference signal resource for the first serving cell.

[0504] As an example, the measurement result for the first serving cell is the sum of the measurement quality of at least one reference signal resource of the first serving cell and at least one offset.

[0505] As an example, the measurement results for the first serving cell include an index of at least one reference signal resource for the first serving cell.

[0506] As a sub-implementation of the above embodiments, the indexes of the at least one reference signal resource of the first serving cell are sorted in ascending order of index number.

[0507] As a sub-example of the above embodiments, the indexes of the at least one reference signal resource of the first serving cell are sorted from low to high according to measurement quality.

[0508] As a sub-example of the above embodiments, the indexes of the at least one reference signal resource of the first serving cell are sorted from high to low according to the measurement quality.

[0509] As an example, the measurement quality of the at least one reference signal resource of the first serving cell is an RSRP (Reference Signal Received Power).

[0510] As an example, the measurement quality of the at least one reference signal resource of the first serving cell is an RSRQ (Reference Signal Received Quality).

[0511] As an example, the measurement quality of the at least one reference signal resource of the first serving cell is at least one RSRP.

[0512] As an example, the measurement quality of the at least one reference signal resource of the first serving cell is at least one RSRQ.

[0513] As an example, the measurement quality of the at least one reference signal resource of the first serving cell is unfiltered.

[0514] As an example, the measurement quality of the at least one reference signal resource of the first serving cell is at least one measurement value of the at least one reference signal resource of the first serving cell.

[0515] As an example, the measurement quality of the at least one reference signal resource of the first serving cell is a value obtained by performing a first operation on at least one measurement value of the at least one reference signal resource of the first serving cell.

[0516] As an example, the measurement quality is RSRP.

[0517] As an example, the measurement quality is L1-RSRP.

[0518] As an example, the measurement quality is SS-RSRP.

[0519] As an example, the measurement quality is CSI-RSRP.

[0520] As an example, the measurement quality is RSRQ.

[0521] As an example, the measurement quality is SINR.

[0522] As an example, the measurement quality is unfiltered.

[0523] As an example, the measurement quality is filtered.

[0524] As an example, the measured value is the RSRP of one path of a reference signal.

[0525] As an example, the measured value is the RSRP of the strongest path of a reference signal.

[0526] As an example, the measured value is the average RSRP of multiple paths of a reference signal.

[0527] As an example, the measured value is RSRP.

[0528] As an example, the measured value is the interference level.

[0529] As an example, the measured value is the received power.

[0530] As an example, the measured value is the received power level.

[0531] As an example, the measured value is L1.

[0532] As an example, the measured value is a sampled value.

[0533] As an example, the measured value is the average of multiple sampled values.

[0534] As an example, the first operation includes averaging.

[0535] As an example, the average is a weighted average.

[0536] As an example, the average is an arithmetic average.

[0537] As one example, the first operation includes taking the maximum or minimum value.

[0538] As an example, the extreme value is the minimum value.

[0539] As an example, the extreme value is the maximum value.

[0540] As one example, the first operation includes filtering.

[0541] As an example, the filtering is L1 filtering.

[0542] As an example, the filter coefficients of the L1 filter are pre-configured.

[0543] As an example, the filter coefficients of the L1 filter are predefined.

[0544] As an example, the filtering is L3 filtering.

[0545] As an example, the filter coefficients of the L3 filter are pre-configured.

[0546] As an example, the filter coefficients of the L3 filter are predefined.

[0547] As an example, the filtering coefficients used in the first operation are the same for the first serving cell and the first candidate cell.

[0548] As an example, the filtering coefficients used in the first operation are different for the first serving cell and the first candidate cell.

[0549] As an example, the filtering coefficients used in the first operation are configured independently for the first serving cell and the first candidate cell.

[0550] As an example, the first operation is averaging.

[0551] As an example, the first operation is to find the maximum or minimum value.

[0552] As an example, the first operation is filtering.

[0553] As an example, the first serving cell is PCell.

[0554] As an example, the first serving cell is a PSCell.

[0555] As an example, the first candidate cell is configured to the first serving cell.

[0556] As an example, the first candidate cell is a candidate cell of the first serving cell.

[0557] As an example, the first candidate cell is a candidate cell of the first node U01.

[0558] As an example, the first candidate cell is an LTM candidate cell; the first serving cell is a PCell.

[0559] As an example, the first candidate cell is an LTM candidate cell; the first serving cell is a PSCell.

[0560] As an example, the first candidate cell is a CHO candidate cell; the first serving cell is a PCell.

[0561] As an example, the first candidate cell is a CPC candidate cell; the first serving cell is a PSCell.

[0562] As an example, the first candidate cell is a CPA candidate cell; the first serving cell is a PSCell.

[0563] As an example, the dashed box F5.2 is optional.

[0564] As an example, the dashed box F5.2 does not exist.

[0565] As a sub-implementation of the above embodiment, the first node U01 sends a first signaling; wherein the first signaling includes a measurement report; after sending the first signaling, it is determined that the connection has failed; a first message is sent; wherein the determination of connection failure triggers the sending of the first message; the first message includes a first field, the first field indicating the time interval between a first time and a second time; the first time depends on the sending of the first signaling, and the second time depends on the determination of connection failure.

[0566] As a sub-implementation of the above embodiment, the determination of connection failure triggers the sending of the first message.

[0567] As a sub-example of the above embodiment, the second node N02 is the third node N03.

[0568] As a sub-example of the above embodiment, the second node N02 is not the third node N03.

[0569] As an example, the dashed box F5.2 is present.

[0570] As a sub-implementation of the above embodiment, the first node U01 sends a first signaling; wherein the first signaling includes a measurement report; after sending the first signaling, a connection failure is determined; as a response to the determination of connection failure, a first information block is set in a first variable, the first information block including a second field; after setting the first information block in the first variable, a second message is received; a first message is sent; the receipt of the second message triggers the sending of the first message; wherein the first message includes a first field, the first field indicating a time interval between a first time and a second time; the first time depends on the sending of the first signaling, the second time depends on the determination of connection failure; the first message includes at least the second field of the first information block, the second field being the same as the first field.

[0571] As a sub-implementation of the above embodiment, receiving the second message triggers sending the first message.

[0572] As a sub-example of the above embodiment, the third node N03 is the maintenance base station of the second serving cell of the first node U01.

[0573] As a sub-implementation of the above embodiment, the second serving cell of the first node U01 is a PCell following the first serving cell of the first node U01; the first serving cell is a PCell.

[0574] As a sub-implementation of the above embodiments, the second serving cell of the first node U01 is a PSCell following the first serving cell of the first node U01; the first serving cell is a PSCell.

[0575] As a sub-implementation of the above embodiment, after determining the connection failure and before sending the first message, the first node U01 sends at least one rlf-InfoAvailable, which indicates that the first node U01 has stored the connection failure information in the first variable.

[0576] As a sub-example of the above embodiment, the first node U01 does not determine the connection failure after determining the connection failure but before sending the first message.

[0577] As a sub-example of the above embodiment, the first node U01 does not clear the information in the first variable after determining the connection failure and before sending the first message.

[0578] As a sub-implementation of the above embodiment, in response to the determination of connection failure, the first node U01 performs an RRC connection re-establishment process on the second serving cell.

[0579] As a sub-example of the above embodiment, in response to the determination of connection failure, the first node U01 performs an RRC connection establishment process on the second serving cell.

[0580] As one example, the first variable includes connection failure information.

[0581] As an example, the first variable includes wireless link failure information.

[0582] As one example, the first variable includes switching failure information.

[0583] As one example, the first variable includes wireless link failure information or handover failure information.

[0584] As an example, the first variable is a VarRLF-Report.

[0585] As an example, the first variable is a VarConnEstFailReport.

[0586] As an example, the first variable is a VarConnEstFailReportList.

[0587] As an example, the second message is an RRC message.

[0588] As one example, the second message is sent through the serving cell of the first node U01.

[0589] As an example, the second message is sent via MCG.

[0590] As an example, the second message is sent via SRB1.

[0591] As an example, the second message is sent via SCG.

[0592] As an example, the second message is sent via N3C.

[0593] As an example, the second message is sent via split SRB1.

[0594] As an example, the second message is sent via SRB3.

[0595] As an example, the second message is sent via split SRB1 or SRB3.

[0596] As an example, the second message includes a MAC CE.

[0597] As an example, the second message includes a DCI (Downlink Control Information).

[0598] As an example, the second message is a DCI.

[0599] As an example, the receipt of the second message triggering the sending of the first message means: in response to the receipt of the second message, the first message is sent.

[0600] As an example, the second message is a UEInformationRequest message; the first message is a UEInformationResponse message.

[0601] As an example, the second message is a UEInformationRequest message, which includes an rlf-ReportReq; the first message is a UEInformationResponse message.

[0602] As one embodiment, the first message includes the entirety of the first information block.

[0603] As one embodiment, the first message includes a portion of the first information block, and the portion of the first information block includes the at least second field of the first information block.

[0604] As an example, the at least second field of the first information block is the second field of the first information block.

[0605] As one embodiment, the first information block includes a sixth field; the at least second field of the first information block includes the second field and the sixth field; the sixth field and the third field are the same.

[0606] As one embodiment, the first information block includes a seventh field; the at least second field of the first information block includes the second field and the seventh field, wherein the seventh field is the same as the fourth field.

[0607] As one embodiment, the first information block includes an eighth field; the at least second field of the first information block includes the second field and the eighth field, and the eighth field is the same as the fifth field.

[0608] As an example, the dashed box F5.3 is optional.

[0609] As an example, the dashed box F5.3 does not exist.

[0610] As a sub-example of the above embodiment, the third node N03 is not the second node N02; the third node N03 did not send the first message.

[0611] As a sub-example of the above embodiment, the third node N03 is the second node N02.

[0612] As an example, the dashed box F5.3 is present.

[0613] As a sub-example of the above embodiment, the third node N03 is not the second node N02; the third node N03 sends the first message.

[0614] As a sub-example of the above embodiment, the third node N03 and the second node N02 belong to the same PLMN (Public Land Mobile Network).

[0615] As a sub-example of the above embodiment, the third node N03 and the second node N02 belong to different PLMNs.

[0616] Example 6

[0617] Example 6 illustrates a schematic diagram of the time interval between a first time and a second time according to an embodiment of this application. The horizontal axis represents time; the second time is after the first time. As shown in Figure 6.

[0618] For the first node U01:

[0619] At the first time, the first timer is started;

[0620] At the second time, the first timer expires;

[0621] In embodiment 6, the time interval between the first time and the second time refers to the value of the first timer.

[0622] As an example, the above method is beneficial for optimizing the value of the first timer.

[0623] As an example, the first timer is a timer for the RRC sublayer.

[0624] As an example, the first timer is T316.

[0625] As an example, the above method is beneficial for optimizing the rapid recovery of MCG.

[0626] As an example, the first timer is T312.

[0627] As an example, the above method is beneficial for optimizing mobility.

[0628] As an example, the first timer is a timer for the MAC sublayer.

[0629] As an example, the first time depending on the transmission of the first signaling means that, along with the transmission of the first signaling, the first timer is started at the first time.

[0630] As an example, this embodiment does not limit the impact of hardware, software, crystal oscillator, or clock factors on the first or second time.

[0631] Example 7

[0632] Example 7 illustrates a schematic diagram of a first message according to an embodiment of this application, as shown in Figure 7.

[0633] In Embodiment 7, the first message includes a third field that indicates the first condition.

[0634] As an example, the RLF-Report in the first message includes the third field.

[0635] As an example, the name of the third domain includes Config.

[0636] As an example, the name of the third domain includes ltmConfig.

[0637] As an example, the first RRC message includes an index of the first condition, and the third field indicates the index of the first condition.

[0638] As an example, the first RRC message includes at least one threshold of the first condition, and the third field indicates the at least one threshold of the first condition.

[0639] As an example, the first RRC message includes at least one offset of the first condition, and the third field indicates the at least one offset of the first condition.

[0640] As an example, the first RRC message includes a second information block indicating the first condition, and the third field includes the second information block.

[0641] Example 8

[0642] Example 8 illustrates a schematic diagram of a first message according to another embodiment of this application, as shown in Figure 8.

[0643] In Example 8, the first RRC message includes a second condition; wherein the second condition includes at least one of the measurement result for the first candidate cell being worse than a third threshold or the measurement result for the first serving cell being better than a fourth threshold; the first message includes a fourth field indicating whether the second condition is met.

[0644] As an example, the first RRC message includes a third information block that indicates the second condition.

[0645] As an example, the first RRC message including the second condition means that the first RRC message includes at least one threshold of the second condition.

[0646] As a sub-implementation of the above embodiments, the at least one threshold includes one or more RSRP thresholds.

[0647] As a sub-implementation of the above embodiments, the at least one threshold includes one or more RSRQ thresholds.

[0648] As a sub-implementation of the above embodiments, the at least one threshold includes one or more SINR thresholds.

[0649] As a sub-implementation of the above embodiments, the at least one threshold includes one or more time thresholds.

[0650] As a sub-implementation of the above embodiments, the at least one threshold includes one or more distance thresholds.

[0651] As an example, the first RRC message including the second condition means that the first RRC message includes at least one offset of the second condition.

[0652] As a sub-implementation of the above embodiments, the at least one offset includes one or more RSRP offsets.

[0653] As a sub-implementation of the above embodiments, the at least one offset includes one or more RSRQ offsets.

[0654] As a sub-implementation of the above embodiments, the at least one offset includes one or more SINR offsets.

[0655] As a sub-implementation of the above embodiments, the at least one offset includes one or more time offsets.

[0656] As a sub-implementation of the above embodiments, the at least one offset includes one or more distance offsets.

[0657] As an example, the second condition includes the measurement result for the first candidate cell being worse than the third threshold.

[0658] As an example, the second condition includes the measurement result for the first serving cell being better than the fourth threshold.

[0659] As an example, the second condition includes that the measurement result for the first candidate cell is worse than the third threshold, and that the measurement result for the first serving cell is better than the fourth threshold.

[0660] As an example, the third threshold is the first threshold.

[0661] As an example, the third threshold is not the first threshold.

[0662] As an example, the fourth threshold is the second threshold.

[0663] As an example, the fourth threshold is not the second threshold.

[0664] As an example, the fourth field explicitly indicates whether the second condition is met.

[0665] As an example, the fourth field implicitly indicates whether the second condition is satisfied.

[0666] As an example, if the second condition is met, the fourth field is set to true; if the second condition is not met, the fourth field is set to false.

[0667] As an example, if the second condition is met, the fourth field is set to 1; if the second condition is not met, the fourth field is set to 0.

[0668] As an example, the first message includes the fourth field only when the second condition is met; if the second condition is not met, the first message does not include the fourth field.

[0669] As an example, the fourth field indicates whether the second condition is satisfied within the time interval between the first time and the second time.

[0670] As an example, the fourth field indicates whether the second condition is met when the connection is determined to fail.

[0671] As an example, the fourth field indicates whether the second condition is satisfied at the second time.

[0672] As an example, the first RRC message includes an index of the second condition, and the fourth field indicates the index of the second condition.

[0673] As an example, the first RRC message includes at least one threshold of the second condition, and the fourth field indicates the at least one threshold of the second condition.

[0674] As an example, the first RRC message includes at least one offset of the second condition, and the fourth field indicates the at least one offset of the second condition.

[0675] As an example, the first RRC message includes a third information block indicating the second condition, and the fourth field includes the third information block.

[0676] Example 9

[0677] Example 9 illustrates a schematic diagram of a first message according to yet another embodiment of this application, as shown in Figure 9.

[0678] In Embodiment 9, the first message includes a fifth field; wherein the fifth field includes at least one of the measurement results for the first candidate cell or the measurement results for the first serving cell when the first signaling is sent.

[0679] As an example, when the first signaling is not successfully sent, the first message includes a fifth field; wherein the fifth field includes at least one of the measurement results for the first candidate cell or the measurement results for the first serving cell at the time the first signaling was sent.

[0680] As a sub-implementation of the above embodiment, when the first signaling is successfully sent, the first message does not include the fifth field.

[0681] As a sub-implementation of the above embodiments, the above method is beneficial to reduce redundant information reporting.

[0682] As a sub-implementation of the above embodiments, the above method is beneficial for reducing signaling overhead.

[0683] As an example, regardless of whether the first signaling is successfully sent, the first message includes a fifth field; wherein the fifth field includes at least one of the measurement results for the first candidate cell or the measurement results for the first serving cell at the time the first signaling was sent.

[0684] As a sub-implementation of the above embodiments, the above method is beneficial for providing complete information to the network.

[0685] As a sub-example of the above embodiments, the above method is beneficial for enhancing network optimization performance.

[0686] As an example, the fifth field includes the measurement results for the first candidate cell when the first signaling is sent.

[0687] As one embodiment, the fifth field includes the measurement results for the first serving cell when the first signaling is sent.

[0688] As an example, the fifth field includes the measurement results for the first candidate cell and the measurement results for the first serving cell when the first signaling is sent.

[0689] As an example, the measurement result for the first candidate cell when the first signaling is sent is the last measurement result for the first candidate cell that has been obtained when the first signaling is sent.

[0690] As an example, the measurement result for the first candidate cell when the first signaling is sent is the first measurement result for the first candidate cell obtained after the first signaling is sent.

[0691] As an example, the measurement result for the first candidate cell when the first signaling is sent is the measurement result for the first candidate cell that is available when the first signaling is sent.

[0692] Example 10

[0693] Example 10 illustrates a schematic diagram of a first signaling according to an embodiment of the present application, as shown in Figure 10.

[0694] In Embodiment 10, the first RRC message includes configuration information of the first candidate cell; wherein, the first signaling is for triggering a handover command indicating a handover to the first candidate cell; the handover command indicating a handover to the first candidate cell triggers the application of the configuration information of the first candidate cell.

[0695] As an example, the configuration information of the first candidate cell includes reference signal resources of the first candidate cell for the first condition.

[0696] As one embodiment, the configuration information of the first candidate cell includes the reference signal resources of the first candidate cell used for measurement.

[0697] As an example, the reference signal resource used for measurement is an SSB (Synchronization Signal Block) resource.

[0698] As an example, the reference signal resource used for measurement is a CSI (Channel State Information)-RS (Reference Signal) resource.

[0699] As an example, the reference signal resource used for measurement is either an SSB resource or a CSI-RS resource.

[0700] As an example, the configuration information of the first candidate cell includes the identifier of the first candidate cell.

[0701] As an example, the configuration information of the first candidate cell includes configuration information in an LTM-Candidate, wherein the LTM-Candidate includes the ServingCellConfig of the first candidate cell.

[0702] As an example, the configuration information of the first candidate cell includes configuration information in a CondReconfigToAddMod, wherein the CondReconfigToAddMod includes the ServingCellConfig of the first candidate cell.

[0703] As an example, the configuration information of the first candidate cell includes configuration information in an RRCReconfiguration message, wherein the RRCReconfiguration message includes the CondReconfigId of the first candidate cell.

[0704] As an example, the configuration information of the first candidate cell includes the physical layer configuration of the first candidate cell.

[0705] As an example, the configuration information of the first candidate cell includes the configuration of the MAC sublayer of the first candidate cell.

[0706] As an example, the configuration information of the first candidate cell includes the configuration of the RLC sublayer of the first candidate cell.

[0707] As an example, the configuration information of the first candidate cell includes the configuration of the PDCP sublayer of the first candidate cell.

[0708] As an example, the handover command indicating a switch to the first candidate cell is a MAC CE.

[0709] As an example, the handover command indicating a switch to the first candidate cell is an LTM Cell Switch Command MAC CE.

[0710] As an example, the handover command indicating a switch to the first candidate cell is a DCI.

[0711] As one embodiment, the handover command indicating a switch to the first candidate cell includes an index of the candidate target configuration of the first candidate cell.

[0712] As an example, the handover command indicating a switch to the first candidate cell includes a Target Configuration ID field, which indicates the first candidate cell.

[0713] As an example, the handover command indicating a switch to the first candidate cell is a MAC CE, the MAC CE including a Target Configuration ID field, the Target Configuration ID field indicating the ltm-CandidateId-1 of the first candidate cell.

[0714] As one embodiment, the first message includes the first domain relying on the first signaling to trigger the handover command indicating a handover to the first candidate cell.

[0715] As an example, in response to the receipt of the handover command indicating a handover to the first candidate cell, the configuration information of the first candidate cell is applied.

[0716] As an example, in response to the receipt of the handover command indicating a handover to the first candidate cell, a higher layer is given an indication that an LTM cell handover process has been triggered and the Target Configuration ID of the first candidate cell included in the handover command indicating a handover to the first candidate cell; in response to the RRC sublayer receiving an indication from a lower layer that an LTM cell handover process has been triggered, the configuration information of the first candidate cell is applied.

[0717] As one embodiment, the configuration information for applying the first candidate cell includes all of the configuration information for applying the first candidate cell.

[0718] As one embodiment, the configuration information for applying the first candidate cell includes at least a portion of the configuration information for applying the first candidate cell.

[0719] Example 11

[0720] Example 11 illustrates a structural block diagram of a processing device in a first node according to an embodiment of the present application; as shown in Figure 11. In Figure 11, the processing device 1100 in the first node includes a first processor 1101 and a first transmitter 1102.

[0721] The first transmitter 1102 transmits a first signaling message; wherein the first signaling message includes a measurement report;

[0722] First processor 1101, connection failed;

[0723] The first transmitter sends the first message;

[0724] In Example 11, the first message includes a first field, which indicates the time interval between a first time and a second time; the first time depends on the sending of the first signaling, and the second time depends on the determination of connection failure.

[0725] As one embodiment, the first processor 1101, in response to the determination of connection failure, sets a first information block in a first variable, the first information block including a second field; the first processor receives a second message; wherein, the receipt of the second message triggers the sending of the first message; the first message includes at least the second field of the first information block, the second field being the same as the first field.

[0726] As an example, the determination of connection failure triggers the sending of the first message.

[0727] As an example, the first processor 1101 receives a first RRC message; wherein the first RRC message includes a first condition; wherein the first condition being met triggers the sending of the first signaling; the first condition includes at least one of the following: the measurement result for the first candidate cell is better than a first threshold or the measurement result for the first serving cell is worse than a second threshold.

[0728] As an example, the first message includes a third field that indicates the first condition.

[0729] As an example, the first RRC message includes a second condition; wherein the second condition includes at least one of the measurement result for the first candidate cell being worse than a third threshold or the measurement result for the first serving cell being better than a fourth threshold; the first message includes a fourth field indicating whether the second condition is met.

[0730] As one embodiment, the first message includes a fifth field; wherein the fifth field includes at least one of the measurement results for the first candidate cell or the measurement results for the first serving cell at the time the first signaling is sent.

[0731] As one embodiment, the first RRC message includes configuration information of the first candidate cell; wherein, the first signaling is for triggering a handover command indicating a handover to the first candidate cell; the handover command indicating a handover to the first candidate cell triggers the application of the configuration information of the first candidate cell.

[0732] As one embodiment, the first processor 1101 includes a first receiver.

[0733] As one embodiment, the first processor 1101 includes a first transmitter.

[0734] As one embodiment, the first processor 1101 includes a first receiver and a first transmitter 1102.

[0735] As one embodiment, the first receiver includes at least one of the following in Figure 4 of this application: antenna 452, receiver 454, multi-antenna receiver processor 458, receiver processor 456, controller / processor 459, memory 460, or data source 467.

[0736] As one embodiment, the first receiver includes at least an antenna 452 and a receiver 454 as shown in Figure 4 of this application.

[0737] As one embodiment, the first transmitter 1102 includes at least one of the following in Figure 4 of this application: antenna 452, transmitter 454, multi-antenna transmitter processor 457, transmitter processor 468, controller / processor 459, memory 460, or data source 467.

[0738] As one embodiment, the first transmitter 1102 includes at least an antenna 452 and a transmitter 454 as shown in Figure 4 of this application.

[0739] Example 12

[0740] Example 12 illustrates a structural block diagram of a processing apparatus for a second node according to an embodiment of the present application; as shown in Figure 12. In Figure 12, the processing apparatus 1200 in the second node includes a second receiver 1201.

[0741] The second receiver 1201 receives a first message; wherein the sender of the first message receives a first signaling; the first signaling includes a measurement report; and the sender of the first message determines that the connection has failed.

[0742] In Example 12, the first message includes a first field, which indicates the time interval between a first time and a second time; the first time depends on the sending of the first signaling, and the second time depends on the determination of connection failure.

[0743] As one embodiment, the processing device 1200 in the second node includes a second transmitter 1202.

[0744] As one embodiment, the second transmitter 1202 sends the first signaling.

[0745] As an example, the first signaling is sent by the sustaining base station of the first serving cell in this application.

[0746] As an example, in response to the determination of connection failure, the sender of the first message sets a first information block in a first variable, the first information block including a second field; the sender of the first message receives a second message; wherein, receiving the second message triggers the sending of the first message; the first message includes at least the second field of the first information block, the second field being the same as the first field.

[0747] As one embodiment, the second transmitter 1202 sends the second message.

[0748] As one embodiment, the second message is sent by the sustaining base station of the second serving cell in this application.

[0749] As one embodiment, the second message is sent by the sustaining base station of the first serving cell in this application.

[0750] As an example, the determination of connection failure triggers the sender of the first message to send the first message.

[0751] As an example, the sender of the first message receives a first RRC message; wherein the first RRC message includes a first condition; wherein the first condition being met triggers the sending of the first signaling; the first condition includes at least one of the following: the measurement result for the first candidate cell is better than a first threshold or the measurement result for the first serving cell is worse than a second threshold.

[0752] As an example, the second transmitter 1202 sends the first RRC message.

[0753] As an example, the first RRC message is sent by the sustaining base station of the first serving cell in this application.

[0754] As an example, the first message includes a third field that indicates the first condition.

[0755] As an example, the first RRC message includes a second condition; wherein the second condition includes at least one of the measurement result for the first candidate cell being worse than a third threshold or the measurement result for the first serving cell being better than a fourth threshold; the first message includes a fourth field indicating whether the second condition is met.

[0756] As one embodiment, the first message includes a fifth field; wherein the fifth field includes at least one of the measurement results for the first candidate cell or the measurement results for the first serving cell at the time the first signaling is sent.

[0757] As one embodiment, the first RRC message includes configuration information of the first candidate cell; wherein, the first signaling is for triggering a handover command indicating a handover to the first candidate cell; the handover command indicating a handover to the first candidate cell triggers the application of the configuration information of the first candidate cell.

[0758] As one embodiment, the second transmitter 1201 includes at least one of the following in Figure 4 of this application: antenna 420, transmitter 418, multi-antenna transmitter processor 471, transmitter processor 416, controller / processor 475, or memory 476.

[0759] As one embodiment, the second transmitter 1201 includes at least an antenna 420 and a transmitter 418 as shown in Figure 4 of this application.

[0760] As one embodiment, the second receiver 1202 includes at least one of the following in Figure 4 of this application: antenna 420, receiver 418, multi-antenna receiver processor 472, receiver processor 470, controller / processor 475, or memory 476.

[0761] As one embodiment, the second receiver 1202 includes at least an antenna 420 and a receiver 418 as shown in Figure 4 of this application.

[0762] Those skilled in the art will understand that all or part of the steps in the above methods can be implemented by a program instructing related hardware, and the program can be stored in a computer-readable storage medium, such as a read-only memory, hard disk, or optical disk. Optionally, all or part of the steps in the above embodiments can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiments can be implemented in hardware or in the form of software functional modules. This application is not limited to any specific combination of software and hardware. The user equipment, terminal, and UE in this application include, but are not limited to, drones, communication modules on drones, remote-controlled aircraft, aircraft, small aircraft, mobile phones, tablets, laptops, vehicle-mounted communication devices, wireless sensors, internet cards, IoT terminals, RFID terminals, NB-IoT terminals, MTC (Machine Type Communication) terminals, eMTC (enhanced MTC) terminals, data cards, internet cards, vehicle-mounted communication devices, low-cost mobile phones, low-cost tablets, and other wireless communication devices. The base station or system equipment in this application includes, but is not limited to, macrocell base stations, microcell base stations, home base stations, relay base stations, gNB (NR Node B), TRP (Transmitter Receiver Point), and other wireless communication equipment.

[0763] The above description is merely a preferred embodiment of this application and is not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A first node configured for wireless communication, the first node comprising: Comprising: a first transmitter that transmits first signaling; wherein the first signaling comprises a measurement report; a first processor that determines a connection failure; the first transmitter that transmits a first message; wherein the first message comprises a first field, the first field indicating a time interval between a first time and a second time; the first time depending on the transmitting first signaling, the second time depending on the determining connection failure.

2. The first node of claim 1, characterized in that, Comprising: the first processor that, in response to the determining connection failure, sets a first information block in a first variable, the first information block comprising a second field; the first processor that receives a second message; wherein the receiving second message triggers the transmitting first message; the first message comprising at least the second field of the first information block, the second field being identical to the first field.

3. The first node of claim 1 or 2, wherein, The determining connection failure triggers the transmitting first message.

4. The first node of any of claims 1 to 3, wherein, Comprising: the first processor that receives a first RRC message; wherein the first RRC message comprises a first condition; wherein the first condition being satisfied triggers the transmitting first signaling; the first condition comprising at least one of a measurement result for a first candidate cell being better than a first threshold or a measurement result for a first serving cell being worse than a second threshold.

5. The first node of any of claims 1 to 4, wherein, The first message comprises a third field, the third field indicating the first condition.

6. The first node of any of claims 1 to 5, wherein, The first RRC message comprises a second condition; wherein the second condition comprises at least one of a measurement result for the first candidate cell being worse than a third threshold or a measurement result for a first serving cell being better than a fourth threshold; the first message comprises a fourth field, the fourth field indicating whether the second condition is satisfied.

7. The first node of any of claims 1-6, wherein, The first message comprises a fifth field; wherein the fifth field comprises at least one of a measurement result for the first candidate cell or a measurement result for a first serving cell at a time when the first signaling is transmitted.

8. The first node of any of claims 1-7, wherein, The first RRC message comprises configuration information of the first candidate cell; wherein the first signaling is to trigger a handover command indicating a handover to the first candidate cell; the handover command indicating the handover to the first candidate cell triggers applying the configuration information of the first candidate cell.

9. A method in a first node used for wireless communication, characterized by, Comprising: transmitting first signaling; wherein the first signaling comprises a measurement report; determining a connection failure; transmitting a first message; wherein the first message comprises a first field, the first field indicating a time interval between a first time and a second time; the first time depending on the transmitting first signaling, the second time depending on the determining connection failure.

10. A second node configured for wireless communication, the second node comprising: Comprising: a second receiver that receives a first message; wherein a transmitter of the first message transmits first signaling; the first signaling comprises a measurement report; the transmitter of the first message determines a connection failure; wherein the first message comprises a first field, the first field indicating a time interval between a first time and a second time; the first time depending on the transmitting first signaling, the second time depending on the determining connection failure.

11. A method in a second node used for wireless communication, characterized by, Comprising: receiving a first message; wherein a sender of the first message receives a first signaling; the first signaling comprises a measurement report; the sender of the first message determines a connection failure; wherein the first message comprises a first field, the first field indicates a time interval between a first time and a second time; the first time depends on the sending the first signaling, the second time depends on the determining the connection failure.

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