Method and apparatus used in communication node for wireless communication

Abstract

Disclosed in the present application are a method and apparatus used in a communication node for wireless communication. The method comprises: a communication node predicting a first connection failure; and in response to the first connection failure being predicted, on the basis of whether a first condition is met, determining whether to initiate a first operation, wherein the first operation comprises RRC connection reestablishment. On the basis of whether the first condition is met, determining whether to initiate the first operation comprises: when the first condition is met, initiating the first operation; and the first condition depends on a first time window, and the first time window depends on at least one of a time at which the first connection failure is predicted and a predicted occurrence time of the first connection failure. In the present application, whether to execute RRC connection reestablishment is determined on the basis of a first time window, thereby improving mobility performance.

Description

Method and apparatus in a communication node used for wireless communication TECHNICAL FIELD

[0001] The present application relates to a transmission method and device in a wireless communication system, in particular to a triggering method and device for RRC connection reestablishment. BACKGROUND

[0002] For existing services or future services (e.g. XR), when the mobility of the UE (User Equipment) is high or moves between high-density cells, it will cause more unexpected problems such as HOF (Handover Failure), RLF (Radio Link Failure), ping-pong phenomenon, throughput loss or early / late handover, etc. Considering that the mechanism based on AI (Artificial Intelligence) / ML (Machine Learning) algorithm has the potential to implement the proactive scheme and based on the related progress of RAN1 and RAN3 in AI / ML, the 3GPP (the 3rd Generation Partnership Project) has passed the SI (Study Item) of “Study on AI / ML for mobility in NR (New Radio)”, which studies and evaluates the potential benefits and gains of AI / ML assisted mobility for network triggered L3 based handover, including RLF prediction or HOF prediction. SUMMARY

[0003] RRC connection reestablishment is an important means of radio link recovery. The inventors have found through research that in the prior art, RRC connection reestablishment is only started when a link problem is detected, and in order to detect a link problem, some timers or counters are usually used to assist in detecting a link problem, such as T310 expiration, RLC (Radio Link Control) retransmission number reaching the maximum value, etc., which may cause RRC (Radio Resource Control) connection reestablishment to be too early or too late, thereby affecting the service quality of the UE. Therefore, it is necessary to enhance the conditions for RRC connection reestablishment.

[0004] To solve the above problems, the present application provides a solution. In the description of the above problems, the NR system is taken as an example, and the present application is also applicable to scenarios such as LTE (Long-Term Evolution) or LTE-A (Long-Term Evolution Advanced) or 5G+ or 6G system, and similar technical effects of the NR system are obtained; further, although the present application gives a specific implementation for RLF, the present application can also be used in scenarios such as HOF, and similar technical effects of RLF are obtained. Further, the unified design scheme for different scenarios also helps to reduce hardware complexity and cost. Further, although the original intention of the present application is to target the Uu air interface, the present application can also be used for the PC5 interface, and similar technical effects of the Uu air interface are obtained. Further, although the original intention of the present application is to target the terminal and base station scenario, the present application is also applicable to the V2X (Vehicle-to-Everything) scenario, the communication scenario between the terminal and the relay, and the communication scenario between the relay and the base station, and similar technical effects in the terminal and base station scenario are obtained. Further, although the original intention of the present application is to target the terminal and base station scenario, the present application is also applicable to the IAB (Integrated Access and Backhaul) communication scenario, and similar technical effects in the terminal and base station scenario are obtained. Further, although the original intention of the present application is to target the TN (Terrestrial Network) scenario, the present application is also applicable to the NTN (Non-Terrestrial Network) communication scenario, and similar technical effects in the TN scenario are obtained. In addition, the unified solution for different scenarios also helps to reduce hardware complexity and cost.

[0005] As an embodiment, the explanation of the terminology in the present application refers to the definition of the specification agreement TS36 series of 3GPP.

[0006] As an embodiment, the explanation of the terminology in the present application refers to the definition of the specification agreement TS38 series of 3GPP.

[0007] As an embodiment, the explanation of the terminology in the present application refers to the definition of the specification agreement TS37 series of 3GPP.

[0008] It should be noted that the embodiments in any node of the present application and the features in the embodiments can be applied to any other node without conflict. The embodiments of the present application and the features in the embodiments can be arbitrarily combined with each other without conflict.

[0009] A method in a first node for wireless communication is disclosed, comprising:

[0010] predicting a first connection failure; and

[0011] wherein the determining whether to initiate the first operation comprises:

[0012] initiating the first operation when the first condition is satisfied;

[0013] wherein the first condition depends on a first time window, and the first time window depends on at least one of a time when the first connection failure is predicted and a predicted time of occurrence of the first connection failure.

[0014] As an embodiment, the problems solved by the present application include: how to determine whether to initiate the first operation, the first operation comprising RRC connection re-establishment; the above method solves the above problems by determining whether to initiate the first operation according to whether a first condition is satisfied as a response to the first connection failure being predicted. Further, the problems solved by the present application include: how to determine the first condition; the above method solves the above problems by the first condition depending on a first time window. Further, the problems solved by the present application include: how to determine the first time window; the above method solves the above problems by the first time window depending on at least one of a time when the first connection failure is predicted and a predicted time of occurrence of the first connection failure.

[0015] As an embodiment, the above method avoids unnecessary first operation by the first time window.

[0016] As an embodiment, the above method avoids premature execution of the first operation by the first time window.

[0017] As an embodiment, the above method avoids impact on current communication by the first time window.

[0018] As an embodiment, the above method improves mobility performance.

[0019] As an embodiment, the first connection failure is RLF.

[0020] As an embodiment, the first connection failure is HOF.

[0021] As an embodiment, the first time window depends on both the time when the first connection failure is predicted and the predicted time of occurrence of the first connection failure.

[0022] As an embodiment, the first time window depends on only the former of the predicted time of the first connection failure and the predicted time of occurrence of the first connection failure.

[0023] As an embodiment, the first time window depends on only the latter of the predicted time of the first connection failure and the predicted time of occurrence of the first connection failure.

[0024] According to an aspect of the present application, there is provided a method comprising:

[0025] receiving a first reference signal;

[0026] wherein the first condition depends on at least one of a measurement, an evaluation or a prediction for the at least first reference signal in the first time window.

[0027] As an embodiment, the problem to be solved by the present application comprises: how to determine the first condition through the first time window; the above method solves the above problem by that the first condition depends on at least one of a measurement, an evaluation or a prediction for the at least first reference signal in the first time window.

[0028] As an embodiment, the above method is beneficial to determine a suitable first condition.

[0029] As an embodiment, the above method is combined with an existing radio link monitoring (RLM).

[0030] As an embodiment, the first condition depends on at least one of a measurement, an evaluation or a prediction for the first reference signal in the first time window means that the first condition depends on a measurement for the first reference signal in the first time window.

[0031] As an embodiment, the first condition depends on at least one of a measurement, an evaluation or a prediction for the first reference signal in the first time window means that the first condition depends on an evaluation for the first reference signal in the first time window.

[0032] As an embodiment, the first condition depends on at least one of a measurement, an evaluation or a prediction for the first reference signal in the first time window means that the first condition depends on a prediction for the first reference signal in the first time window.

[0033] As an embodiment, the first condition depending on at least one of the measurement or the evaluation or the prediction for the first reference signal in the first time window means that the first condition depends on the measurement and the prediction for the first reference signal in the first time window.

[0034] As an embodiment, the first condition depending on at least one of the measurement or the evaluation or the prediction for the first reference signal in the first time window means that the first condition depends on the evaluation and the prediction for the first reference signal in the first time window.

[0035] According to an aspect of the present application, there is provided a method comprising:

[0036] The first processing machine receives a first message.

[0037] The first message indicates that the at least first reference signal is used for radio link monitoring.

[0038] According to an aspect of the present application, the predicting the first connection failure depends on the at least first reference signal.

[0039] As an embodiment, the problem to be solved by the present application includes: how to predict the first connection failure; the above method solves the above problem by predicting the first connection failure depending on the at least first reference signal.

[0040] According to an aspect of the present application, the predicting the first connection failure depends on at least one of a number of predicted in-sync indications or a number of predicted out-of-sync indications within the first time window; the predicted in-sync indication or the predicted out-of-sync indication depends on the at least first reference signal.

[0041] As an embodiment, the problem to be solved by the present application includes: how to predict the first connection failure; the above method solves the above problem by predicting the first connection failure depending on at least one of a number of predicted in-sync indications or a number of predicted out-of-sync indications within the first time window.

[0042] As an embodiment, the above method realizes connection failure prediction on the basis of existing RLM.

[0043] As an embodiment, the above method is simple to implement.

[0044] As an embodiment, the above method is implemented by a UE.

[0045] As an embodiment, the above method is conducive to standardization.

[0046] As an embodiment, the method is advantageous for improving robustness of prediction.

[0047] According to an aspect of the present application, the first condition depends on a number of predicted in-sync indications or a number of predicted out-of-sync indications within the first time window.

[0048] As an embodiment, the problem to be solved by the present application includes how to determine a first condition through a first time window; the method solves the above problem by that the first condition depends on at least one of a number of predicted in-sync indications or a number of predicted out-of-sync indications within the first time window.

[0049] As an embodiment, the method is advantageous for determining a suitable first condition through a relatively dynamic first condition.

[0050] According to an aspect of the present application, the method comprises:

[0051] The first processor is configured to send first UE capability information and receive a second message.

[0052] The first UE capability information indicates that the first node supports connection failure prediction; the second message enables the connection failure prediction; and the determination of whether to start a first operation according to whether a first condition is met depends on the connection failure prediction.

[0053] According to an aspect of the present application, the first condition includes that a length of the first time window is not greater than a first time length; and the first time length is configured or determined by the first node.

[0054] As an embodiment, the problem to be solved by the present application includes how to determine a first condition through a first time window; the method solves the above problem by that the first condition includes that a length of the first time window is not greater than a first time length.

[0055] As an embodiment, the first condition includes that a length of the first time window is not greater than a first time length; and the first time length is configured.

[0056] As an embodiment, the first condition includes that a length of the first time window is not greater than a first time length; and the first time length is determined by the first node.

[0057] According to an aspect of the present application, when the first connection failure is predicted, a first handover procedure is performed; the first connection failure is for a target cell of the first handover procedure.

[0058] According to an aspect of the present application, the first condition comprises a first timer running; the first timer is used for connection failure detection.

[0059] According to an aspect of the present application, the first condition comprises a first handover procedure being performed; the first connection failure is for a target cell of the first handover procedure.

[0060] As an embodiment, the problem to be solved by the present application comprises: how to determine the first condition; the above method solves the above problem by comprising that the first condition comprises a first handover procedure being performed.

[0061] As an embodiment, the above method, under the premise that the first condition is met, starts the first operation as a response to the first connection failure being predicted, which is beneficial to avoid triggering HOF too late.

[0062] According to an aspect of the present application, when the first connection failure is predicted, a handover procedure is not performed; the first connection failure is for a PCell.

[0063] As an embodiment, the above method, under the premise that the first condition is met, starts the first operation as a response to the first connection failure being predicted, which is beneficial to avoid triggering RLF too late.

[0064] The present application discloses a method in a second node used for wireless communication, comprising:

[0065] sending at least a first reference signal;

[0066] wherein one receiver of the at least first reference signal predicts a first connection failure; as a response to the first connection failure being predicted, the one receiver determines whether to start a first operation according to whether a first condition is met, the first operation comprising RRC connection reestablishment; wherein the determining whether to start the first operation according to whether the first condition is met comprises: when the first condition is met, starting the first operation; wherein the first condition depends on a first time window, the first time window depends on at least one of a time when the first connection failure is predicted and a predicted occurrence time of the first connection failure; the first condition depends on at least one of measurement, evaluation or prediction for the at least first reference signal in the first time window.

[0067] According to an aspect of the present application, there is at least a feature that comprises:

[0068] sending a first message;

[0069] wherein the first message indicates that the at least first reference signal is used for radio link monitoring; the predicting the first connection failure relies on the at least first reference signal.

[0070] According to an aspect of the present application, there is at least a feature that comprises:

[0071] receiving first UE capability information;

[0072] sending a second message;

[0073] wherein the first UE capability information indicates that the one receiver supports connection failure prediction; the second message enables the connection failure prediction; the determining whether to initiate the first operation according to whether the first condition is met relies on the connection failure prediction.

[0074] According to an aspect of the present application, the first condition comprises that a length of the first time window is not greater than a first time length; the first time length is configured or the first time length is determined by the one receiver.

[0075] According to an aspect of the present application, the first condition comprises that a first timer is running; the first timer is used for connection failure detection.

[0076] According to an aspect of the present application, the first condition comprises that a first handover procedure is ongoing; the first connection failure is for a target cell of the first handover procedure.

[0077] The present application discloses a first node used for wireless communication, comprising:

[0078] a first processor, predicting a first connection failure; as a response to the first connection failure being predicted, determining whether to initiate a first operation according to whether a first condition is met, the first operation comprising RRC connection reestablishment;

[0079] wherein the determining whether to initiate the first operation according to whether the first condition is met comprises:

[0080] when the first condition is met, initiating the first operation;

[0081] wherein the first condition relies on a first time window, the first time window relies on at least one of a time when the first connection failure is predicted and a predicted occurrence time of the first connection failure.

[0082] The application discloses a second node used for wireless communication, which is characterized by comprising:

[0083] a second transmitter, which transmits at least a first reference signal;

[0084] wherein one receiver of the at least first reference signal predicts a first connection failure; as a response to the first connection failure being predicted, the one receiver determines whether to start a first operation according to whether a first condition is met, the first operation including RRC connection reestablishment; wherein the determining whether to start the first operation according to whether the first condition is met includes: when the first condition is met, starting the first operation; wherein the first condition depends on a first time window, the first time window depending on at least one of a time when the first connection failure is predicted and a predicted occurrence time of the first connection failure; the first condition depending on at least one of measurement, evaluation or prediction of the at least first reference signal in the first time window.

[0085] The application discloses a method in a first node used for wireless communication, which is characterized by comprising:

[0086] predicting a first connection failure;

[0087] wherein the predicting the first connection failure depends on at least one of a number of predicted in-sync indications or a number of predicted out-of-sync indications within a first time window; the first time window depending on at least one of a time when the first connection failure is predicted and a predicted occurrence time of the first connection failure.

[0088] As an embodiment, for the sake of brevity of the description, the first connection failure, the first time window, the predicted in-sync indication, the predicted out-of-sync indication can all refer to other embodiments of the application and can be combined arbitrarily without conflict.

[0089] As an embodiment, the problem to be solved by the application includes: how to predict a connection failure; the above method solves the above problem by the predicting the first connection failure depending on at least one of a number of predicted in-sync indications or a number of predicted out-of-sync indications within a first time window.

[0090] As an embodiment, the above method realizes connection failure prediction on the basis of existing RLM.

[0091] As an embodiment, the above method is simple to implement.

[0092] As an embodiment, the above method is implemented by a UE.

[0093] As an embodiment, the above method is advantageous for standardization.

[0094] According to an aspect of the present application, it features comprising:

[0095] receiving at least a first reference signal; the predicted synchronization indication or the predicted out-of-sync indication is dependent on the at least first reference signal.

[0096] According to an aspect of the present application, it features that at least P1 consecutive predicted out-of-sync indications within the first time window triggers the predicting of the first connection failure; the P1 is a positive integer.

[0097] According to an aspect of the present application, it features that at least P2 consecutive predicted synchronization indications within the first time window triggers the predicting of the first connection failure; the P2 is a positive integer.

[0098] According to an aspect of the present application, it features that at least P1 consecutive predicted out-of-sync indications within the first time window and at least P2 consecutive predicted synchronization indications within a second time window triggers the predicting of the first connection failure; the P1 is a positive integer; the P2 is a positive integer; a start time of the second time window is dependent on an end time of the first time window.

[0099] The present application discloses a first node used for wireless communication, which features comprising:

[0100] a first processor predicting a first connection failure;

[0101] wherein the predicting of the first connection failure is dependent on at least one of a number of predicted synchronization indications or a number of predicted out-of-sync indications within a first time window; the first time window is dependent on at least one of a time when the first connection failure is predicted and a predicted occurrence time of the first connection failure. BRIEF DESCRIPTION OF DRAWINGS

[0102] Other features, objects, and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments thereof as read in conjunction with the accompanying drawings:

[0103] Fig. 1 shows a flow chart according to an embodiment of the present application;

[0104] Fig. 2 shows a schematic diagram of a network architecture according to an embodiment of the present application;

[0105] Fig. 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and control plane according to an embodiment of the present application;

[0106] Figure 4 shows a schematic diagram of a first communication device and a second communication device according to one embodiment of the present application;

[0107] Figure 5 shows a flow diagram of a wireless signal transmission according to one embodiment of the present application;

[0108] Figure 6 shows a schematic diagram of a first condition according to one embodiment of the present application;

[0109] Figure 7 shows a schematic diagram of a first condition according to another embodiment of the present application;

[0110] Figure 8 shows a schematic diagram of a first condition according to yet another embodiment of the present application;

[0111] Figure 9 shows a schematic diagram of a predicted in-sync indication or a predicted out-of-sync indication within a first time window according to one embodiment of the present application;

[0112] Figure 10 shows a schematic diagram of an evaluation or a prediction for at least a first reference signal according to one embodiment of the present application;

[0113] Figure 11 shows a structural block diagram of a processing device in a first node according to one embodiment of the present application;

[0114] Figure 12 shows a structural block diagram of a processing device in a second node according to one embodiment of the present application;

[0115] Figure 13 shows a flow diagram of a first state according to one embodiment of the present application;

[0116] Figure 14 shows a schematic diagram of a first notification according to one embodiment of the present application;

[0117] Figure 15 shows a schematic diagram of an intelligent model according to one embodiment of the present application;

[0118] Figure 16 shows a schematic diagram of an intelligent function deployment of a RAN domain according to one embodiment of the present application;

[0119] Figure 17 shows a schematic diagram of an intelligent function deployment of a UE according to one embodiment of the present application;

[0120] Figure 18 shows a flow diagram based on artificial intelligence or machine learning according to one embodiment of the present application. DETAILED DESCRIPTION

[0121] The technical solutions of the present application will be further described below in conjunction with the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other arbitrarily without conflict.

[0122] Embodiment 1

[0123] Embodiment 1 illustrates a flowchart according to one embodiment of the present application, as shown in FIG. 1. In FIG. 1, each block represents a step, and it is particularly emphasized that the order of the blocks in the figure does not represent the time sequence between the steps represented.

[0124] In Embodiment 1, the first node in the present application predicts a first connection failure in step 101, and determines whether to start a first operation according to whether a first condition is met in step 102, as a response to the prediction of the first connection failure, the first operation including RRC connection reestablishment; wherein the determination of whether to start the first operation according to whether the first condition is met includes: when the first condition is met, starting the first operation; wherein the first condition depends on a first time window, the first time window depending on at least one of the time when the first connection failure is predicted and the predicted occurrence time of the first connection failure.

[0125] As one embodiment, when the first connection failure is predicted, the first node is in RRC_CONNECTED state.

[0126] As one embodiment, when the first connection failure is predicted, no legal event triggering connection failure is detected.

[0127] As one embodiment, before the first operation is started, no legal event triggering connection failure is detected.

[0128] As one embodiment, within the first time window, no legal event triggering connection failure is detected.

[0129] As one embodiment, within the time interval between the prediction of the first connection failure and the determination of whether to start the first operation according to whether the first condition is met, no legal event triggering connection failure is detected.

[0130] As one embodiment, the legal event triggering connection failure includes expiration of T310 of PCell (Primary Cell).

[0131] As one embodiment, the legal event triggering connection failure includes expiration of T312 of PCell.

[0132] As one embodiment, the legitimate event triggering the connection failure comprises: receiving a random access problem indication from a master cell group (MCG) medium access control (MAC) and none of T300, T301, T304, T311, T316 and T319 are running and a small data transmission (SDT) procedure is not ongoing.

[0133] As one embodiment, the legitimate event triggering the connection failure comprises: reaching a maximum number of RLC retransmissions and a SDT procedure is not ongoing.

[0134] As one embodiment, the legitimate event triggering the connection failure comprises: receiving a consecutive uplink LBT failure indication from a MCG MAC.

[0135] As one embodiment, the legitimate event triggering the connection failure comprises: T304 expiry for a MCG.

[0136] As one embodiment, the first connection failure is for a MCG; and the first connection failure is RLF.

[0137] As one embodiment, the first connection failure is for a SCG; and the first connection failure is RLF.

[0138] As one embodiment, the first connection failure is for a PSCell; and the first connection failure is RLF.

[0139] As one embodiment, the first connection failure is for a PCell; and the first connection failure is RLF.

[0140] As one embodiment, the first connection failure is for a target cell; and the first connection failure is HOF.

[0141] As one embodiment, the predicting the first connection failure is based on a UE implementation of the first node.

[0142] As one embodiment, the predicting the first connection failure is based on an intelligent model.

[0143] As one embodiment, the intelligent model employed by the predicting the first connection failure is network configured.

[0144] As one embodiment, the intelligent model employed by the predicting the first connection failure is determined by the first node itself.

[0145] As one embodiment, the intelligent model employed to predict the first connection failure is selected by the first node from a plurality of intelligent models configured by a network.

[0146] As one embodiment, the intelligent model employed to predict the first connection failure is dedicated to connection failure prediction.

[0147] As one embodiment, the first connection failure is predicted to mean that N1 consecutive out-of-sync indications are predicted; the N1 is a positive integer.

[0148] As one embodiment, the first connection failure is predicted to mean that the number of consecutive out-of-sync indications reaches N1; the N1 is a positive integer.

[0149] As one embodiment, the first connection failure is predicted to mean that the number of consecutive out-of-sync indications within the first time window reaches N1; the N1 is a positive integer.

[0150] As one embodiment, the first connection failure is predicted to mean that T310 expires.

[0151] As one embodiment, the first connection failure is predicted to mean that T312 expires.

[0152] As one embodiment, the first connection failure is predicted to mean that any one of T310 or T312 expires.

[0153] As one embodiment, the first connection failure is predicted to mean that connection failure occurs at a first time.

[0154] As one embodiment, the connection failure occurring at the first time is predicted to mean that an index of connection failure occurring at the first time reaches a first threshold.

[0155] As one embodiment, the first index includes BLER.

[0156] As one embodiment, the first index includes RSRP.

[0157] As one embodiment, the first index includes probability.

[0158] As one embodiment, the first index includes credibility.

[0159] As one embodiment, the response as the first connection failure is predicted to mean that when the first connection failure is predicted.

[0160] As one embodiment, the response as the first connection failure being predicted is to initiate the first operation upon the first connection failure being predicted.

[0161] As one embodiment, the response as the first connection failure being predicted is to initiate the first operation at least after the first connection failure being predicted.

[0162] As one embodiment, the first operation is the RRC connection re-establishment.

[0163] As one embodiment, the first operation comprises determining connection failure and the RRC connection re-establishment.

[0164] As one embodiment, the determining connection failure is to consider a source MCG being detected with radio link failure.

[0165] As one embodiment, the determining connection failure is to determine MCG fast recovery failure.

[0166] As one embodiment, the determining connection failure is to determine synchronization reconfiguration failure.

[0167] As one embodiment, the initiating is to start.

[0168] As one embodiment, the initiating is to initiate.

[0169] As one embodiment, the initiating is to initiate.

[0170] As one embodiment, the initiating the first operation is triggered by the first condition being met.

[0171] As one embodiment, the initiating the first operation is triggered by the first condition being met.

[0172] As one embodiment, the initiating the first operation is triggered by the first condition being met.

[0173] As one embodiment, the first condition being met triggers the initiating the first operation.

[0174] As one embodiment, the determining whether to initiate the first operation according to whether the first condition is met comprises:

[0175] initiating the first operation when the first condition is met;

[0176] not initiating the first operation when the first condition is not met.

[0177] As an embodiment, the determining whether to initiate the first operation according to whether the first condition is satisfied comprises:

[0178] initiating the first operation when the first condition is satisfied;

[0179] otherwise, not initiating the first operation.

[0180] As an embodiment, the not initiating the first operation means that behavior of the first node is not defined.

[0181] As an embodiment, the method means that when the first condition is not satisfied, the first connection failure is predicted to not affect behavior of the first node.

[0182] As an embodiment, the not initiating the first operation means initiating a first reporting procedure; the first reporting procedure comprises sending a target message.

[0183] As an embodiment, the method means that when the first condition is not satisfied, the first connection failure is predicted to trigger the first reporting procedure.

[0184] As an embodiment, the first reporting procedure is used for reporting measurement information.

[0185] As an embodiment, the first reporting procedure is used for reporting prediction information.

[0186] As an embodiment, the first reporting procedure is used for reporting measurement information and prediction information.

[0187] As an embodiment, the first reporting procedure is a Measurement Report procedure.

[0188] As an embodiment, the first reporting procedure is a MCG Failure Information procedure.

[0189] As an embodiment, the first reporting procedure is a UE Information procedure.

[0190] As an embodiment, the target message is sent on a serving cell of the first node.

[0191] As an embodiment, the initiating the first operation when the first condition is satisfied is defined.

[0192] As an embodiment, the method is simple to implement.

[0193] As one embodiment, the above method facilitates regulating UE behavior.

[0194] As one embodiment, the above method facilitates network configuration.

[0195] As one embodiment, the above defined means that it is specified by a protocol.

[0196] As one embodiment, the above defined means that it cannot depend on UE implementation.

[0197] As one embodiment, the above defined means that it is mandatory.

[0198] As one embodiment, the above defined means that it is mandatory.

[0199] As one embodiment, the above "starting the first operation when the first condition is met" is determined by the first node.

[0200] As one embodiment, the above method improves flexibility of UE implementation.

[0201] As one embodiment, the above method facilitates avoiding impact of prediction error.

[0202] As one embodiment, the above method reduces impact on existing protocol.

[0203] As one embodiment, the above first node determination means that it is determined by UE implementation of the first node.

[0204] As one embodiment, the above method means that whether to start the first operation when the first condition is met depends on UE implementation of the first node.

[0205] As one embodiment, optionally, in the above method, whether to start the first operation when the first condition is met is determined by UE vendor.

[0206] As one embodiment, the above first node determination means that it is determined by the first node itself.

[0207] As one embodiment, the above method means that whether to start the first operation when the first condition is met is determined by the first node itself.

[0208] As one embodiment, optionally, in the above method, when the first condition is met, the first node can determine whether to start the first operation based on at least one of measurement or traffic or configuration.

[0209] As one embodiment, the above first time window is a time interval.

[0210] As one embodiment, the first time window is continuous time.

[0211] As one embodiment, the first time window is non-continuous time.

[0212] As one embodiment, the first time window is implemented by a timer.

[0213] As one embodiment, the first time window comprises the time during which a timer is running.

[0214] As one embodiment, the first time window refers to the time during which a timer is running; the end time of the first time window is the time when the timer expires.

[0215] As one embodiment, the first time window is implemented by the period of a reference signal resource.

[0216] As one embodiment, the first time window is implemented by a specified start time and an end time.

[0217] As one embodiment, the first time window is implemented by a specified start time and a time length.

[0218] As one embodiment, the length of the first time window is indicated by the network.

[0219] As one sub-embodiment of the above embodiment, the network configuration refers to being indicated by an RRC message.

[0220] As one sub-embodiment of the above embodiment, the network configuration refers to being indicated by lower layer signaling.

[0221] As one sub-embodiment of the above sub-embodiment, the lower layer is a MAC CE (Control Element).

[0222] As one sub-embodiment of the above sub-embodiment, the lower layer is a DCI (Downlink Control Information).

[0223] As one sub-embodiment of the above embodiment, the network configuration refers to being indicated by both an RRC message and a MAC CE.

[0224] As one sub-embodiment of the above sub-embodiment, the length of the first time window is configured by an RRC message and activated by a MAC CE.

[0225] As one embodiment, the length of the first time window is determined by the first node.

[0226] As a sub-example of the above embodiment, the determining by the first node refers to predicting by the first node.

[0227] As a sub-example of the above embodiment, the determining by the first node refers to self-determining by the first node.

[0228] As a sub-example of the above embodiment, the determining by the first node refers to determining by the first node based on UE implementation.

[0229] As a sub-example of the above embodiment, the determining by the first node refers to selecting by the first node.

[0230] As an example, the first condition depending on the first time window refers to the first condition being related to the first time window.

[0231] As an example, the first condition depending on the first time window refers to the first time window being used to determine the first condition.

[0232] As an example, the first condition depending on the first time window refers to the first condition depending on a length of the first time window.

[0233] As an example, the first condition depending on the first time window refers to the first condition depending on a length of a remaining time of the first time window.

[0234] As an example, the first condition depending on the first time window refers to a length of a duration of the first time window.

[0235] As an example, the first condition depending on the first time window refers to a reference signal within a duration of the first time window.

[0236] As an example, the first condition depending on the first time window refers to a prediction result within a duration of the first time window.

[0237] As an example, the first connection failure prediction information is received, the first connection failure prediction information indicating the first connection failure being predicted.

[0238] As an example, a start time of the first time window is indicated by the first connection failure prediction information.

[0239] As an example, a start time of the first time window depends on the time when the first connection failure is predicted.

[0240] As an example, a start time of the first time window is the time when the first connection failure is predicted.

[0241] As one embodiment, the start time of the first time window is a time after the time when the first connection failure is predicted.

[0242] As one embodiment, the time when the first connection failure is predicted is a time when prediction of the first connection failure is indicated.

[0243] As one embodiment, the time when the first connection failure is predicted is a time when the first connection failure is determined to be predicted.

[0244] As one embodiment, the time when the first connection failure is predicted is related to a time when prediction information of the first connection failure is received.

[0245] As one embodiment, the time when the first connection failure is predicted is a time when prediction information of the first connection failure is received.

[0246] As one embodiment, the time when the first connection failure is predicted is a time indicated by prediction information of the first connection failure.

[0247] As one embodiment, the time when the first connection failure is predicted is a time when the first connection failure is predicted by an intelligent model.

[0248] As one embodiment, the time when the first connection failure is predicted is related to a prediction period.

[0249] As one embodiment, the time when the first connection failure is predicted is an end time of a prediction period.

[0250] As one embodiment, an end time of the first time window is indicated by prediction information of the first connection failure.

[0251] As one embodiment, an end time of the first time window depends on the predicted occurrence time of the first connection failure.

[0252] As one embodiment, an end time of the first time window is the predicted occurrence time of the first connection failure.

[0253] As one embodiment, an end time of the first time window is a time after the predicted occurrence time of the first connection failure.

[0254] As one embodiment, the predicted occurrence time of the first connection failure is after the time when the first connection failure is predicted.

[0255] As one embodiment, the predicted occurrence time of the first connection failure is indicated by prediction information of the first connection failure.

[0256] As one embodiment, the predicted occurrence time of the first connection failure is determined by an intelligent model.

[0257] As one embodiment, the predicted occurrence time of the first connection failure is determined by the predicted time of the first connection failure and a target time length.

[0258] As one embodiment, the predicted occurrence time of the first connection failure is a time of the predicted time of the first connection failure after the target time length.

[0259] As one embodiment, the target time length is configurable.

[0260] As one embodiment, the target time length is configured by an RRC message.

[0261] As one embodiment, the target time length is indicated by prediction information of the first connection failure.

[0262] As one embodiment, the target time length is determined by prediction information of the first connection failure.

[0263] As one embodiment, the target time length is determined by an intelligent model.

[0264] As one embodiment, the length of the first time window is equal to the target time length.

[0265] As one embodiment, the length of the first time window is not equal to the target time length.

[0266] As one embodiment, the first time window depends on at least one of the predicted time of the first connection failure and the predicted occurrence time of the first connection failure means that the first time window depends on both the predicted time of the first connection failure and the predicted occurrence time of the first connection failure.

[0267] As one sub-embodiment of the above embodiment, the first time window comprises a time interval between the predicted time of the first connection failure and the predicted occurrence time of the first connection failure.

[0268] As one sub-embodiment of the above embodiment, the first time window is a time interval between the predicted time of the first connection failure and the predicted occurrence time of the first connection failure.

[0269] As one sub-example of the above embodiment, the first time window overlaps a time interval between the time when the first connection failure is predicted and the predicted time of the occurrence of the first connection failure.

[0270] As one sub-example of the above embodiment, the first time window overlaps a time interval between the time when the first connection failure is predicted and the predicted time of the occurrence of the first connection failure.

[0271] As one example, the first time window depending on at least one of the time when the first connection failure is predicted and the predicted time of the occurrence of the first connection failure means that the first time window depends on only the former of the time when the first connection failure is predicted and the predicted time of the occurrence of the first connection failure.

[0272] As one sub-example of the above embodiment, the start time of the first time window is the time when the first connection failure is predicted.

[0273] As one example, the first time window depending on at least one of the time when the first connection failure is predicted and the predicted time of the occurrence of the first connection failure means that the first time window depends on only the latter of the time when the first connection failure is predicted and the predicted time of the occurrence of the first connection failure.

[0274] As one example, for the first node, AS security is activated, and SRB2 or at least one of at least one DRB or at least one multicast MRB is set; the first connection failure is for MCG.

[0275] As one example, for the first node, T316 is not configured, or SCG transmission is suspended, or SCG is deactivated; the first connection failure is for MCG.

[0276] As one example, for the first node, MCG transmission is suspended; the first connection failure is for SCG.

[0277] As one example, the prediction in the present application is predict.

[0278] As one example, the prediction in the present application includes inference.

[0279] As one example, the prediction in the present application includes training.

[0280] As one embodiment, the prediction in this application includes training and inference.

[0281] Embodiment 2

[0282] Embodiment 2 illustrates a diagram of a network architecture according to one embodiment of the application, as shown in FIG. 2. FIG. 2 illustrates a 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 the network architecture 200 is a 5G+ network architecture, or the network architecture 200 is a 6G network architecture, or the network architecture 200 is a network architecture of future continued evolution of 3GPP; the network architecture 200 can be referred to as a 5GS (5G System) / EPS (Evolved Packet System), or the network architecture 200 can be referred to as a 6GS (6G System); the network architecture 200 includes a UE (User Equipment) 201, a RAN (Radio Access Network) 202, a core network 210, a HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and at least one of an Internet service 230. The network architecture 200 can be interconnected 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 appreciate that the various concepts presented throughout this application are amenable to use with networked or other cellular networked environments providing circuit-switched services. The RAN includes a node 203 and other nodes 204. The node 203 provides user and control plane protocol terminations toward the UE 201. The node 203 can be connected to the other nodes 204 via an Xn interface (e.g., backhaul) / X2 interface. The node 203 can also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a TRP (Transmit Receive Point), or some other suitable terminology. The core network 210 is a 5GC (5G Core Network) / EPC (Evolved Packet Core), or the core network 210 is a 6GC; the node 203 provides an access point to the core network 210 for the UE 201.Examples of a UE 201 include a cellular phone, a smart phone, a session initiation protocol (SIP) phone, a laptop, a personal digital assistant (PDA), a satellite radio, a non-tower based station communication, satellite mobile communication, global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, a drone, a flying vehicle, a narrowband internet of things device, a machine type communication device, a land vehicle, a car, a wearable device, or any other similar functional device. Those skilled in the art will also The node 203 is connected by an S1 / NG interface to the core network 210. The core network 210 includes a MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MME / AMF / SMF 214, a 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 a 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 Protocal) packets are transferred through the S-GW / UPF 212, which itself is connected to the P-GW / UPF 213. The P-GW provides UE IP address allocation as well as other functions. The P-GW / UPF 213 is connected to the Internet services 230. The Internet services 230 include operator corresponding Internet protocol services, which can specifically include the Internet, an intranet, an IMS (IP Multimedia Subsystem), and a packet switched streaming service.

[0283] As one embodiment, the UE 201 corresponds to the first node in the present application.

[0284] As one embodiment, the UE 201 is a user equipment (UE).

[0285] As one embodiment, the UE 201 is a base station device (BS).

[0286] As one embodiment, the UE 201 is a relay device.

[0287] As one embodiment, the UE 201 is a gateway device.

[0288] As one embodiment, the node 203 corresponds to the second node in the present application.

[0289] As one embodiment, the node 203 is a base station device.

[0290] As one embodiment, the node 203 is a user equipment.

[0291] As one embodiment, the node 203 is a relay device.

[0292] As one embodiment, the node 203 is a gateway device.

[0293] Typically, the UE 201 is a user equipment and the node 203 is a base station device.

[0294] Typically, the UE 201 is a user equipment and the node 203 is a user equipment.

[0295] Typically, the UE 201 is a base station device and the node 203 is a base station device.

[0296] As one embodiment, the user equipment supports intelligent functions.

[0297] As one embodiment, the user equipment supports intelligent modules.

[0298] As one embodiment, the user equipment supports intelligent models.

[0299] As one embodiment, the user equipment supports intelligent models for connection failure prediction.

[0300] As one embodiment, the user equipment supports connection failure prediction.

[0301] As one embodiment, the user equipment supports both RLF prediction and HOF prediction.

[0302] As one embodiment, the user equipment supports only one of both RLF prediction and HOF prediction.

[0303] As an embodiment, the user equipment supports 3GPP Release 19.

[0304] As an embodiment, the user equipment supports 5G.

[0305] As an embodiment, the user equipment supports 6G.

[0306] As an embodiment, the user equipment supports Radio Link Monitoring (RLM).

[0307] As an embodiment, the user equipment supports handover.

[0308] As an embodiment, the user equipment supports CHO.

[0309] As an embodiment, the user equipment supports cell selection.

[0310] As an embodiment, the user equipment supports transmission of Non-Terrestrial Network (NTN).

[0311] As an embodiment, the user equipment supports transmission of Terrestrial Network (TN).

[0312] As an embodiment, the user equipment supports Dual Connection (DC) transmission.

[0313] As an embodiment, the user equipment includes a device supporting low latency and high reliability transmission.

[0314] As an embodiment, the user equipment can be a mobile terminal, which can be a mobile phone or an iPad or a computer or a watch or a ring; the user equipment can also be a wearable device, which can be a watch or a ring or shoes or a hat or clothing or glasses, etc.; the user equipment can also be a flying device; the user equipment can also be a vehicle terminal; the user equipment can also be a ship terminal; the user equipment can also be an Internet of Things terminal; the user equipment can also be an industrial Internet of Things terminal; the user equipment can also be a test device; the user equipment can also be a signaling tester; the user equipment can also be an Integrated Access and Backhaul (IAB)-MT.

[0315] As an embodiment, the base station device supports an intelligent model.

[0316] As an embodiment, the base station device supports an intelligent function.

[0317] As one embodiment, the base station device supports selection of an intelligent model.

[0318] As one embodiment, the base station device supports configuration of an intelligent model.

[0319] As one embodiment, the base station device supports configuration of a connection failure prediction.

[0320] As one embodiment, the base station device supports transmission of a non-terrestrial network.

[0321] As one embodiment, the base station device supports transmission of a terrestrial network.

[0322] As one embodiment, the base station device comprises a Base Transceiver Station (BTS).

[0323] As one embodiment, the base station device comprises a NodeB (NB); the NodeB can be a gNB or an eNB or an ng-eNB or an en-gNB; the base station device can comprise a CU (Centralized Unit); the base station device can further comprise a DU (Distributed Unit); the base station device can further comprise a TRP (Transmitter Receiver Point).

[0324] As one embodiment, the base station device can be a Macro Cellular base station or a Micro Cell base station or a Pico Cell base station or a Femtocell; the base station device can further be a flight platform device or a satellite device; the base station device can further be a test device or a signaling tester; the base station device can further be a gateway device; the base station device can further be an IAB device; the IAB device comprises at least one of an IAB-node or an IAB-donor or an IAB-donor-CU or an IAB-donor-DU or an IAB-DU or an IAB-MT.

[0325] As one embodiment, the relay device can comprise a relay; the relay can be an L3 relay or an L2 relay; the relay device can further comprise a router; the relay device can further comprise a switch; the relay device can further comprise a gateway device; the relay device can further comprise at least part of a user equipment; the relay device can further comprise at least part of a base station device.

[0326] Example 3

[0327] Figure 3 is a diagram illustrating an embodiment of a radio protocol architecture for the user plane 350 and the control plane 300. Figure 3 shows three layers for the radio protocol architecture for the control plane 300: Layer 1, Layer 2, and Layer 3. Layer 1 (LI layer) is the lowest layer and implements various PHY (Physical layer) signal processing functions. The LI layer will be referred to as the PHY 301 herein. Layer 2 (L2 layer) 305 is above the PHY 301 and includes a MAC (Medium Access Control) sublayer 302, a 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 functions, such as ciphering / de-ciphering, and header compression / de-compression. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating the various radio resources (e.g., resource blocks) in one cell. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in Layer 3 (L3 layer) in the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and using RRC signaling to configure the lower layers. The radio protocol architecture for the user plane 350 includes Layer 1 (LI layer) and Layer 2 (L2 layer), which are substantially the same as the corresponding layers and sublayers in the control plane 300 for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355, but the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead. Also included in the L2 layer 355 in the user plane 350 is the SDAP (Service Data Adaptation Protocol) sublayer 356, which is responsible for mapping between QoS flows and data radio bearers (DRBs) to support diverse service

[0328] As an example, the wireless protocol architecture in FIG. 3 is applicable to the first node in the present application.

[0329] As an example, the wireless protocol architecture in FIG. 3 is applicable to the second node in the present application.

[0330] As an example, any of the at least first reference signals in the present application is generated at the PHY 301 or PHY 351.

[0331] As an example, the first message in the present application is generated at the RRC 306.

[0332] As an example, the first message in the present application is generated at the MAC 302 or MAC 352.

[0333] As an example, the first message in the present application is generated at the PHY 301 or PHY 351.

[0334] As an example, the first UE capability information in the present application is generated at the RRC 306.

[0335] As an example, the first UE capability information in the present application is generated at the MAC 302 or MAC 352.

[0336] As an example, the first UE capability information in the present application is generated at the PHY 301 or PHY 351.

[0337] As an example, the second message in the present application is generated at the RRC 306.

[0338] As an example, the second message in the present application is generated at the MAC 302 or MAC 352.

[0339] As an example, the second message in the present application is generated at the PHY 301 or PHY 351.

[0340] As an example, the first connection failure is predicted at a designated protocol layer.

[0341] As an example, a protocol entity corresponding to the designated protocol layer predicts the first connection failure.

[0342] As an example, the designated protocol layer is one of the protocol layers shown in FIG. 3.

[0343] As an example, the designated protocol layer is one protocol layer other than the protocol layers shown in FIG. 3 (not included in FIG. 3).

[0344] As one embodiment, the specified protocol layer is of the first node.

[0345] As one embodiment, the specified protocol layer is of the second node.

[0346] Embodiment 4

[0347] Embodiment 4 shows a schematic diagram of a first communication device and a second communication device according to the present 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.

[0348] The first communication device 450 comprises a controller / processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, a multi-antenna transmit processor 457, a multi-antenna receive processor 458, a transmitter / receiver 454 and an antenna 452.

[0349] The second communication device 410 comprises a controller / processor 475, a memory 476, a receive processor 470, a transmit processor 416, a multi-antenna receive processor 472, a multi-antenna transmit processor 471, a transmitter / receiver 418 and an antenna 420.

[0350] In the transmission from the second communication device 410 to the first communication device 450, at the second communication device 410, upper layer packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements functionality of the L2 layer. In the transmission from the second communication device 410 to the first communication device 450, the controller / processor 475 provides header compression, ciphering, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocations for the first communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for retransmission of lost packets, and signaling to the first communication device 450. The transmit processor 416 and the multiple antenna transmit processor 471 implement various signal processing functions for the LI layer (i.e., physical layer). The transmit processor 416 implements coding and interleaving to facilitate forward error correction (FEC) at the second communication device 410, and mapping of coded bits to modulation symbols based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)). The multiple antenna transmit processor 471 performs digital spatial pre-coding of the coded and modulated symbols, including codebook-based and non-codebook-based pre-coding, and beamforming processing, to generate one or more spatial streams. The transmit processor 416 then maps to each spatial stream to the subcarriers, multiplexes with reference signals (e.g., pilots) in the time and / or frequency domain, and then performs an inverse fast Fourier transform (IFFT) to generate a time-domain multicarrier symbol stream for the physical channel. The multiple antenna transmit processor 471 then performs transmit analog pre-coding / beamforming operations on the time-domain multicarrier symbol stream. Each transmitter 418 converts the baseband multicarrier symbol stream provided by the multiple antenna transmit processor 471 into a radio frequency stream, and then provides the radio frequency stream to the corresponding antenna 420.

[0351] In transmissions 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 respective antenna 452. Each receiver 454 recovers information modulated onto an RF carrier and provides the recovered information at baseband as a stream of symbols to a receive processor 456. The receive processor 456 and a multiple access receiver processor 458 implement various signal processing functions of the Ll layer. The multiple access receiver processor 458 performs receive analog precoding / beamforming operations on the baseband multiple access symbol streams from the receivers 454. The receive processor 456 converts the baseband multiple access symbol streams from the time-domain to the frequency domain using a Fast Fourier Transform (FFT). In the frequency domain, the physical layer data signals and the reference signals are demultiplexed from the received symbol streams, with the reference signals to be used for channel estimation and the data signals to be recovered after multiple access detection in the multiple access receiver processor 458 for any spatial streams destined for the first communication device 450. The symbols on each spatial stream are demodulated and recovered by the receive processor 456 and used to generate soft decisions. The receive processor 456 then decodes and de-interleaves the soft decisions to recover the upper layer data and control signals transmitted by the second communication device 410 on the physical channel. The upper layer data and control signals are then provided to a controller / processor 459. The controller / processor 459 implements the functions of the L2 layer. The controller / processor 459 can be associated with a memory 460 that stores program codes and data. The memory 460 can be referred to as a computer-readable medium. In transmissions from the second communication device 410 to the first communication device 450, the controller / processor 459 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer data packets from the core network. The upper layer data packets are then provided to all protocol layers above the L2 layer. Various control signals can also be provided to the L3 for L3 processing.

[0352] 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 a controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmit function 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, ciphering, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocations, implements L2 layer functionality for the user plane and control plane. The controller / processor 459 is also responsible for error detection, retransmission of lost packets, and signaling to the second communication device 410. A transmit processor 468 performs modulation mapping, channel coding processing, and a multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing, and then the transmit processor 468 modulates the resulting spatial streams into multi-carrier / single-carrier symbol streams, which are then provided to different antennas 452 via transmitters 454 after analog precoding / beamforming operations in the multi-antenna transmit processor 457. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency signal, and then provides the radio frequency signal to the antenna 452.

[0353] In the transmission from the first communication device 450 to the second communication device 410, the functions at the second communication device 410 are similar to the receive functions 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 a radio frequency signal through its respective antenna 420, converts the received radio frequency signal into a baseband signal, and provides the baseband signal to a multi-antenna receive processor 472 and a receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 collectively implement the functionality of the L1 layer. A controller / processor 475 implements the functionality of the L2 layer. The controller / processor 475 can be associated with a memory 476 that stores program codes and data. The memory 476 can be referred to as a computer readable medium. In the transmission from the first communication device 450 to the second communication device 410, the controller / processor 475 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer data packets from the UE 450. Upper layer data packets from the controller / processor 475 can be provided to a core network.

[0354] As one embodiment, the first communication device 450 comprises at least one processor and at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the first communication device 450 at least to predict a first connection failure; in response to the first connection failure being predicted, determine whether to initiate a first operation based on whether a first condition is fulfilled, the first operation comprising RRC connection re-establishment; wherein the determining whether to initiate the first operation based on whether the first condition is fulfilled comprises initiating the first operation when the first condition is fulfilled; wherein the first condition depends on a first time window, the first time window depending on at least one of a time when the first connection failure is predicted and a predicted time of occurrence of the first connection failure.

[0355] As one embodiment, the first communication device 450 comprises a memory storing a computer readable program of instructions which, when executed by at least one processor, causes actions comprising predicting a first connection failure; in response to the first connection failure being predicted, determining whether to initiate a first operation based on whether a first condition is fulfilled, the first operation comprising RRC connection re-establishment; wherein the determining whether to initiate the first operation based on whether the first condition is fulfilled comprises initiating the first operation when the first condition is fulfilled; wherein the first condition depends on a first time window, the first time window depending on at least one of a time when the first connection failure is predicted and a predicted time of occurrence of the first connection failure.

[0356] As one embodiment, the second communication device 410 comprises at least one processor and at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the second communication device 410 at least to transmit at least a first reference signal; wherein a receiver of the at least first reference signal predicts a first connection failure; in response to the first connection failure being predicted, the receiver determines whether to initiate a first operation based on whether a first condition is fulfilled, the first operation comprising RRC connection re-establishment; wherein the determining whether to initiate the first operation based on whether the first condition is fulfilled comprises initiating the first operation when the first condition is fulfilled; wherein the first condition depends on a first time window, the first time window depending on at least one of a time when the first connection failure is predicted and a predicted time of occurrence of the first connection failure; the first condition depending on at least one of a measurement or an evaluation or a prediction for the at least first reference signal in the first time window.

[0357] As one embodiment, the second communication device 410 comprises: a memory storing a computer readable program of instructions which, when executed by at least one processor, results in actions comprising: transmitting at least a first reference signal; wherein one recipient of the at least first reference signal predicts a first connection failure; in response to being predicted the first connection failure, the one recipient determines whether to initiate a first operation based on whether a first condition is satisfied, the first operation comprising RRC connection reestablishment; wherein the determining whether to initiate the first operation based on whether the first condition is satisfied comprises: initiating the first operation when the first condition is satisfied; wherein the first condition depends on a first time window, the first time window depending on at least one of a time at which the first connection failure is predicted and a predicted time of occurrence of the first connection failure; the first condition depending on at least one of a measurement, an evaluation, or a prediction for the at least first reference signal in the first time window.

[0358] As one embodiment, at least one of the antenna 452, the receiver 454, the receive processor 456, the controller / processor 459 is configured to receive each of the at least first reference signal.

[0359] As one embodiment, at least one of the antenna 420, the transmitter 418, the transmit processor 416, the controller / processor 475 is configured to transmit each of the at least first reference signal.

[0360] As one embodiment, at least one of the antenna 452, the receiver 454, the receive processor 456, the controller / processor 459 is configured to receive the first message.

[0361] As one embodiment, at least one of the antenna 420, the transmitter 418, the transmit processor 416, the controller / processor 475 is configured to transmit the first message.

[0362] As one embodiment, at least one of the antenna 452, the receiver 454, the receive processor 456, the controller / processor 459 is configured to receive the second message.

[0363] As one embodiment, at least one of the antenna 420, the transmitter 418, the transmit processor 416, the controller / processor 475 is configured to transmit the second message.

[0364] As one embodiment, at least one of the antenna 452, the transmitter 454, the transmit processor 468, the controller / processor 459 is configured to send first UE capability information.

[0365] As one embodiment, at least one of the antenna 420, the receiver 418, the receive processor 470, the controller / processor 475 is configured to receive first UE capability information.

[0366] As one embodiment, the first communication device 450 corresponds to a first node in the present application.

[0367] As one embodiment, the first communication device 450 is a user equipment.

[0368] As one embodiment, the first communication device 450 is a base station device.

[0369] As one embodiment, the first communication device 450 is a relay device.

[0370] As one embodiment, the first communication device 450 predicts the first connection failure.

[0371] As one embodiment, optionally, the first communication device 450 includes the smart module 1501 in FIG. 14 (not included in FIG. 4).

[0372] As one embodiment, optionally, the first communication device 450 includes the third module in FIG. 15 (not included in FIG. 4).

[0373] As one embodiment, optionally, the first communication device 450 includes the inference function 1806 in FIG. 17 (not included in FIG. 4).

[0374] As one embodiment, the second communication device 410 corresponds to a second node in the present application.

[0375] As one embodiment, the second communication device 410 is a user equipment.

[0376] As one embodiment, the second communication device 410 is a base station device.

[0377] As one embodiment, the second communication device 410 is a relay device.

[0378] As one embodiment, optionally, the second communication device 410 predicts the first connection failure.

[0379] As an example, optionally, the second communication device 410 includes an inference function of FIG. 16 (not included in FIG. 4).

[0380] As an example, optionally, the second communication device 410 includes a RAN domain training function 1805 of FIG. 17 (not included in FIG. 4).

[0381] Embodiment 5

[0382] Embodiment 5 illustrates a wireless signal transmission flowchart according to an embodiment of the present application, as shown in FIG. 5. It is particularly pointed out that the sequence in this example does not limit the sequence of signal transmission and the sequence of implementation in the present application.

[0383] For the first node U01, in step S5101, first UE capability information is sent; in step S5102, a second message is received; wherein the first UE capability information indicates that the first node supports connection failure prediction; the second message enables the connection failure prediction; whether the first operation is started or not is determined according to whether the first condition is met or not, which depends on the connection failure prediction; in step S5103, a first message is received; wherein the first message indicates that the at least first reference signal is used for wireless link monitoring; in step S5104, at least first reference signal is received; wherein the first condition depends on at least one of measurement, evaluation or prediction for the at least first reference signal in the first time window; in step S5105, a first connection failure is predicted; in step S5106, as a response to the first connection failure being predicted, whether the first operation is started or not is determined according to whether the first condition is met or not, the first operation including RRC connection reestablishment; when the first condition is met, step S5107 is entered, otherwise, step S5107 is not entered; in step S5107, the first operation is started.

[0384] For the second node N02, in step S5201, the first UE capability information is received; in step S5202, the second message is sent; in step S5203, the first message is sent; in step S5204, the at least first reference signal is sent.

[0385] In embodiment 5, whether the first operation is started or not according to whether the first condition is met or not includes: when the first condition is met, the first operation is started; wherein the first condition depends on a first time window, the first time window depends on at least one of the time when the first connection failure is predicted and the predicted occurrence time of the first connection failure.

[0386] As an example, the first node U01 is a UE.

[0387] As one embodiment, the first node U01 is a base station device.

[0388] As one embodiment, the second node N02 is a UE.

[0389] As one embodiment, the second node N02 is a relay.

[0390] As one embodiment, the second node N02 is a base station device.

[0391] As one embodiment, the second node N02 is a maintaining base station of a serving cell of the first node U01.

[0392] As one embodiment, the second node N02 is a maintaining base station of a PCell of the first node U01.

[0393] As one embodiment, the second node N02 is a maintaining base station of a PSCell of the first node U01.

[0394] As one embodiment, the second node N02 is a Master Node (MN).

[0395] As one embodiment, the second node N02 is a Secondary Node (SN).

[0396] As one embodiment, the third node N03 is a maintaining base station of a cell which attempts the first operation.

[0397] As one embodiment, the third node N03 is the second node N02.

[0398] As one embodiment, the third node N03 is not the second node N02.

[0399] As one embodiment, the first node U01 and the second node N02 are connected through a wireless connection.

[0400] As one embodiment, the first node U01 and the second node N02 are connected through a wired connection.

[0401] As one embodiment, the first node U01 and the second node N02 are connected through a Uu interface.

[0402] As one embodiment, the first node U01 and the second node N02 are connected through an IAB interface.

[0403] As one embodiment, the first node U01 and the second node N02 are connected through a PC5 interface.

[0404] As an embodiment, the third node N03 and the second node N02 are connected through a wireless interface.

[0405] As an embodiment, the third node N03 and the second node N02 are connected through a wired interface.

[0406] As an embodiment, the third node N03 and the second node N02 are connected through an Xn interface.

[0407] As an embodiment, the third node N03 and the second node N02 are connected through an X2 interface.

[0408] As an embodiment, the third node N03 and the second node N02 are ideal backhaul.

[0409] As an embodiment, the third node N03 and the second node N02 are non-ideal backhaul.

[0410] As an embodiment, the third node N03 and the second node N02 belong to the same CU.

[0411] As an embodiment, the third node N03 and the second node N02 belong to the same DU.

[0412] As an embodiment, the third node N03 and the second node N02 belong to different CUs.

[0413] As an embodiment, the third node N03 and the second node N02 belong to different DUs.

[0414] As an embodiment, the dashed box F5.1 is optional.

[0415] As an embodiment, the dashed box F5.1 exists.

[0416] As an embodiment, the dashed box F5.1 does not exist.

[0417] As an embodiment, the prediction of the first connection failure depends on the first UE capability information indicating that the first node supports connection failure prediction.

[0418] As an embodiment, the determination of whether to start the first operation according to whether the first condition is met depends on that the connection failure prediction means that, on the premise that the first UE capability information indicates that the first node supports connection failure prediction, the first node determines whether to start the first operation according to whether the first condition is met.

[0419] As an embodiment, the determining whether to initiate the first operation according to whether the first condition is met depends on that the connection failure prediction means that the first condition comprises that the first UE capability information indicates that the first node supports the connection failure prediction.

[0420] As an embodiment, the first UE capability information comprises one RRC message; and the one RRC message indicates that the first node supports the connection failure prediction.

[0421] As an embodiment, the first UE capability information comprises one RRC message and one MAC CE; the one RRC message indicates a plurality of UE capabilities; and the one MAC CE indicates from the plurality of UE capabilities that the first node supports the connection failure prediction.

[0422] As an embodiment, the one RRC message is a UECapabilityInformation message.

[0423] As an embodiment, the one RRC message is a UEAssistanceInformation message.

[0424] As an embodiment, the first UE capability information is triggered by a network.

[0425] As an embodiment, the first UE capability information is triggered by the first node U01.

[0426] As an embodiment, the first UE capability information is triggered by the first node U01 based on UE implementation.

[0427] As an embodiment, the first UE capability information is triggered by the first node U01 based on measurement; optionally, the measurement can be measurement on wireless signal, measurement on wireless link quality, measurement on cell link quality, etc.

[0428] As an embodiment, the first UE capability information indicates parameters of at least one intelligent model supported by the first node U01; optionally, the parameters can be identification of intelligent model, type of intelligent model, function of intelligent model, etc.

[0429] As a sub-embodiment of the above embodiment, one intelligent model of the at least one intelligent model supported by the first node U01 is for the connection failure prediction.

[0430] As an embodiment, the first UE capability information indicates that the first node U01 supports the connection failure prediction, and the connection failure prediction comprises RLF prediction and HOF prediction.

[0431] As one embodiment, the first UE capability information indicates that the first node U01 supports connection failure prediction, the connection failure prediction being RLF prediction.

[0432] As one embodiment, the first UE capability information indicates that the first node U01 supports connection failure prediction, the connection failure prediction being HOF prediction.

[0433] As one embodiment, the first UE capability information indicates RLF prediction from RLF prediction and HOF prediction; the connection failure prediction is RLF prediction.

[0434] As one embodiment, the first UE capability information indicates HOF prediction from RLF prediction and HOF prediction; the connection failure prediction is HOF prediction.

[0435] As one embodiment, the first UE capability information indicates both RLF prediction and HOF prediction from RLF prediction and HOF prediction; the connection failure prediction is RLF prediction and HOF prediction.

[0436] As one embodiment, the dashed box F5.2 is optional.

[0437] As one embodiment, the dashed box F5.2 is absent.

[0438] As one embodiment, the dashed box F5.2 is present.

[0439] As one embodiment, the predicting the first connection failure depends on the second message enabling the connection failure prediction.

[0440] As one embodiment, the predicting the first connection failure depends on the first UE capability information indicating that the first node supports connection failure prediction and the second message enabling the connection failure prediction.

[0441] As one embodiment, the determining whether to initiate the first operation according to whether the first condition is met depends on the connection failure prediction meaning that, on the premise that the second message enables the connection failure prediction, the first node determines whether to initiate the first operation according to whether the first condition is met.

[0442] As one embodiment, the determining whether to initiate the first operation according to whether the first condition is met depends on the connection failure prediction meaning that the first condition includes the second message enabling the connection failure prediction.

[0443] As an embodiment, the second message indicates a parameter of the at least one enabled intelligent model; optionally, the parameter can be an identification of the intelligent model, can also be a type of the intelligent model, can also be a function of the intelligent model, etc.

[0444] As a sub-embodiment of the above-mentioned embodiment, the second message indicates one of the at least one enabled intelligent model for the connection failure prediction.

[0445] As an embodiment, the second message comprises an RRC message; the RRC message enables the connection failure prediction.

[0446] As an embodiment, the second message comprises a MAC CE; the MAC CE enables the connection failure prediction.

[0447] As an embodiment, the second message comprises a DCI; the DCI enables the connection failure prediction.

[0448] As an embodiment, the enabling comprises enable.

[0449] As an embodiment, the enabling comprises activate.

[0450] As an embodiment, the enabling comprises enable.

[0451] As an embodiment, the enabling comprises enable.

[0452] As an embodiment, the enabling comprises trigger.

[0453] As an embodiment, the second information block indicates RLF prediction; the connection failure prediction is RLF prediction.

[0454] As an embodiment, the second information block indicates RLF prediction from RLF prediction and HOF prediction; the connection failure prediction is RLF prediction.

[0455] As an embodiment, the second information block indicates HOF prediction; the connection failure prediction is HOF prediction.

[0456] As an embodiment, the second information block indicates HOF prediction from RLF prediction and HOF prediction; the connection failure prediction is HOF prediction.

[0457] As an embodiment, the second information block indicates both RLF prediction and HOF prediction from RLF prediction and HOF prediction; the connection failure prediction is RLF prediction and HOF prediction.

[0458] As one embodiment, the dashed box F5.3 is optional.

[0459] As one embodiment, the dashed box F5.3 is not present.

[0460] As one embodiment, the dashed box F5.3 is present.

[0461] As one embodiment, the first message is an RRC message; the one RRC message indicates the at least first reference signal.

[0462] As one embodiment, the first message comprises one RRC message and one MAC CE; the one RRC message configures a plurality of TCI states; the one MAC CE activates at least one TCI state from the plurality of TCI states; the at least one TCI state indicates the at least first reference signal.

[0463] As one embodiment, the first message comprises one RRC message and one DCI; the one RRC message configures a plurality of TCI states; the one DCI activates at least one TCI state from the plurality of TCI states; the at least one TCI state indicates the at least first reference signal.

[0464] As one embodiment, the first message is a RadioLinkMonitoringRS.

[0465] As one embodiment, the first message is at least one TCI-State.

[0466] As one embodiment, the first message indicates reference signal resources for radio link monitoring, the reference signal resources for radio link monitoring comprising the at least first reference signal.

[0467] As one embodiment, the first message indicates reference signals used by the first node U01 to perform RLM.

[0468] As one embodiment, the first message indicates RLM-RS, any of the at least first reference signal is RLM-RS.

[0469] As one embodiment, the first message indicates that the at least first reference signal is used for radio link monitoring means that the first message explicitly indicates that the at least first reference signal is used for radio link monitoring.

[0470] As one embodiment, the first message indicating the at least first reference signal being used for radio link monitoring means that the first message implicitly indicates the at least first reference signal being used for radio link monitoring.

[0471] As one embodiment, the first message is one RadioLinkMonitoringRS, the one RadioLinkMonitoringRS is for an active BWP, the one RadioLinkMonitoringRS indicates an index of a resource corresponding to any of the at least first reference signal.

[0472] As one embodiment, the first message is at least one TCI-State, the at least one TCI-State is for receiving PDCCH on CORESETs on the active BWP, the at least one TCI-State indicates an index of a resource corresponding to any of the at least first reference signal.

[0473] As one embodiment, the at least first reference signal is configured on an active BWP of one activated cell.

[0474] As one embodiment, the at least first reference signal is configured on an active BWP of a PCell.

[0475] As one embodiment, the at least first reference signal is a reference signal used by the first node U01 to perform RLM.

[0476] As one embodiment, the at least first reference signal is part of the reference signal used by the first node U01 to perform RLM.

[0477] As one embodiment, the dashed box F5.4 is optional.

[0478] As one embodiment, the dashed box F5.4 is not present.

[0479] As one embodiment, the dashed box F5.4 is present.

[0480] As one embodiment, the transmitter of the at least first reference signal is the cell for which the first connection failure is predicted.

[0481] As one embodiment, the at least first reference signal is a physical layer signal.

[0482] As one embodiment, the at least first reference signal is a Reference Signal.

[0483] As one embodiment, any of the at least first reference signals is used for connection failure prediction.

[0484] As one embodiment, any of the at least first reference signals is used for RLM (Radio Link Monitoring).

[0485] As one embodiment, any of the at least first reference signals is used for RLM and connection failure prediction.

[0486] As one embodiment, the at least first reference signals are Downlink (DL).

[0487] As one embodiment, the at least first reference signals are Sidelink (SL).

[0488] As one embodiment, the at least first reference signals are periodic.

[0489] As one embodiment, the at least first reference signals are semi-persistent.

[0490] As one embodiment, the at least first reference signals comprise Synchronization Signal.

[0491] As one embodiment, the at least first reference signals is one SSB.

[0492] As one embodiment, the at least first reference signals is Synchronization Signal.

[0493] As one embodiment, the at least first reference signals is one CSI-RS.

[0494] As one embodiment, the at least first reference signals is indicated by RRC signaling.

[0495] As one embodiment, the at least first reference signals is determined by the first node U01.

[0496] As one embodiment, the at least first reference signals is the first reference signal.

[0497] As one embodiment, the at least first reference signals is a plurality of reference signals; the plurality of reference signals comprises at least the first reference signal.

[0498] As one embodiment, the at least first reference signals does not exceed M1 reference signals; the M1 is a positive integer.

[0499] As one embodiment, the M1 depends on L in TS 38.213 max .

[0500] As one embodiment, the M1 is N in TS 38.213 RLM .

[0501] As one embodiment, the M1 is 2 or 4 or 8.

[0502] As one embodiment, the M1 is no larger than 8.

[0503] As one embodiment, the M1 is no larger than 16.

[0504] As one embodiment, the receiving the at least first reference signal comprises receiving the first reference signal at each available reception occasion of each reference signal in the at least first reference signal.

[0505] As one embodiment, the receiving the at least first reference signal comprises receiving the first reference signal at at least one available reception occasion of each reference signal in the at least first reference signal.

[0506] As one embodiment, an available reception occasion of one reference signal is a time-frequency resource configured to the one reference signal.

[0507] As one embodiment, an available reception occasion of one reference signal is a time-frequency resource configured to the one reference signal and non-overlapping with a specified time-frequency resource.

[0508] As one sub-embodiment of the above embodiment, the specified time-frequency resource comprises an active measurement gap.

[0509] As one sub-embodiment of the above embodiment, a transmission on the specified time-frequency resource has a higher priority than the one reference signal.

[0510] As one embodiment, the first condition depending on at least one of a measurement or an evaluation or a prediction for the at least first reference signal in the first time window means that the first condition depending on a prediction result for the at least first reference signal in the first time window.

[0511] As one embodiment, the first condition depending on the prediction result for the at least first reference signal in the first time window means that the first condition comprises that the prediction result for the at least first reference signal in the first time window is worse than a threshold.

[0512] As one sub embodiment of the above embodiment, the prediction result for the at least first reference signal is BLER.

[0513] As one sub embodiment of the above embodiment, the prediction result for the at least first reference signal is RSRP; wherein the RSRP can be unfiltered RSRP, can be L1 filtered RSRP, can be L3 filtered RSRP, and can be radio link quality.

[0514] As one sub embodiment of the above embodiment, the prediction result for the at least first reference signal is a predicted value of a counter.

[0515] As one embodiment, the first condition depending on at least one of measurement or evaluation or prediction for the at least first reference signal in the first time window means that the first condition includes that a number of first type occasions in the first time window is not greater than a threshold; wherein the first type occasion depends on at least one of measurement or evaluation or prediction for the at least first reference signal.

[0516] As one sub embodiment of the above embodiment, the above method avoids that RRC connection reestablishment cannot be started in time in case that there are too few first type occasions in the first time window.

[0517] As one sub embodiment of the above embodiment, the not greater than is less than.

[0518] As one sub embodiment of the above embodiment, the not greater than is less than or equal to.

[0519] As one sub embodiment of the above embodiment, the threshold is configurable.

[0520] As one sub embodiment of the above embodiment, the threshold is preconfigured.

[0521] As one sub embodiment of the above embodiment, the threshold is indicated by the prediction information of the first connection failure.

[0522] As one embodiment, the first type occasion depends on measurement for the at least first reference signal.

[0523] As one embodiment, the first type occasion depending on measurement for the at least first reference signal means that the first type occasion is an available reception occasion for one reference signal of the at least first reference signal.

[0524] As one sub embodiment of the above embodiment, the one reference signal is any reference signal of the at least first reference signal.

[0525] As one sub-embodiment of the above-mentioned embodiment, the one reference signal is the one with the largest periodicity among the at least first reference signals.

[0526] As one sub-embodiment of the above-mentioned embodiment, the one reference signal is the one with the most available reception occasions in the first time window among the at least first reference signals.

[0527] As one embodiment, the first type of occasions depends on the evaluation for the at least first reference signals.

[0528] As one embodiment, the first type of occasions depending on the evaluation for the at least first reference signals means that the first type of occasions are evaluation occasions for the at least first reference signals.

[0529] As one embodiment, the evaluation occasion depends on an end time of an indication period.

[0530] As one embodiment, the evaluation occasion is an end time of an indication period.

[0531] As one embodiment, the indication period is the maximum of the minimum periodicity of the RS resources corresponding to the at least first reference signals and 10 milliseconds.

[0532] As one embodiment, the evaluation occasion is for synchronization indication or out-of-sync indication.

[0533] As one embodiment, the radio link quality in an evaluation period before the evaluation occasion is determined at the evaluation occasion.

[0534] As one embodiment, the time interval between two adjacent evaluation occasions is an indication period.

[0535] As one embodiment, if the radio link quality of all reference signals in the at least first reference signals is worse than a first out-of-sync threshold in an out-of-sync evaluation period, the physical layer of the first node indicates out-of-sync to higher layers; the evaluation period is an out-of-sync evaluation period.

[0536] As one embodiment, the first out-of-sync threshold is Q out .

[0537] As one embodiment, the Q out is configured by rlmInSyncOutOfSyncThreshold.

[0538] As one embodiment, the physical layer of the first node indicates in-sync to higher layers if the radio link quality of any of the at least first reference signals is better than a first in-sync threshold in a synchronization evaluation period; the evaluation period is a synchronization evaluation period.

[0539] As one embodiment, the first in-sync threshold is Q in .

[0540] As one embodiment, the Q in is configured by rlmInSyncOutOfSyncThreshold.

[0541] As one embodiment, the first type of occasion relies on prediction for the at least first reference signals.

[0542] As one embodiment, the first type of occasion relies on prediction for the at least first reference signals means that the first type of occasion is a predicted evaluation occasion for the at least first reference signals.

[0543] As one embodiment, the predicted evaluation occasion belongs to a prediction indication period.

[0544] As one embodiment, the predicted evaluation occasion relies on an end time of a prediction indication period.

[0545] As one embodiment, the predicted evaluation occasion is for a predicted in-sync indication or a predicted out-of-sync indication.

[0546] As one embodiment, the predicted evaluation occasion is an end time of a prediction indication period.

[0547] As one embodiment, at the predicted evaluation occasion, a radio link quality in a predicted evaluation period before the predicted evaluation occasion is determined.

[0548] As one embodiment, a time interval between two adjacent predicted evaluation occasions is a prediction indication period.

[0549] As one embodiment, the predicted out-of-sync indication relies on a predicted link quality for the at least first reference signals.

[0550] As one embodiment, a predicted out-of-sync indication is predicted if a predicted link quality for each of the at least first reference signals is worse than a first predicted out-of-sync threshold in a predicted out-of-sync evaluation period.

[0551] As one embodiment, the first predicted out-of-sync threshold is Q out .

[0552] As one embodiment, the first predicted out-of-sync threshold is not the Q out .

[0553] As one embodiment, the predicted in-sync indication is dependent on a predicted link quality for the at least first reference signal.

[0554] As one embodiment, an in-sync indication is predicted if a predicted link quality for at least one of the at least first reference signal is better than a first predicted in-sync threshold for a predicted in-sync evaluation period.

[0555] As one embodiment, the first predicted in-sync threshold is Q in .

[0556] As one embodiment, the first predicted in-sync threshold is not the Q in .

[0557] As one embodiment, the predicted link quality is RSRP.

[0558] As one embodiment, the predicted link quality is RSRQ.

[0559] As one embodiment, the predicted link quality is BLER.

[0560] As one embodiment, the predicted link quality is L1 filtered or L3 filtered.

[0561] As one embodiment, the predicted link quality is unfiltered.

[0562] As one embodiment, the predicted link quality is a new quantity.

[0563] As one embodiment, the predicted indication period is the indication period.

[0564] As one embodiment, the predicted indication period is not the indication period.

[0565] As one embodiment, the predicted indication period and the indication period are determined independently.

[0566] As one embodiment, the predicted indication period and the indication period are configured independently.

[0567] As one embodiment, the predicted indication period is determined from the indication period.

[0568] As one embodiment, the predicted indication period is less than 10 milliseconds.

[0569] As one embodiment, the prediction indication period is 10 milliseconds.

[0570] As one embodiment, the prediction indication period is 20 milliseconds.

[0571] As one embodiment, the prediction indication period is 40 milliseconds.

[0572] As one embodiment, the first condition depending on at least one of the measurement or the evaluation or the prediction for the at least first reference signal in the first time window is that the first condition comprises a number of first type periods in the first time window is not greater than a threshold; wherein the first type period depends on at least one of the measurement or the evaluation or the prediction for the at least first reference signal.

[0573] As one sub-embodiment of the above-mentioned embodiment, the above-mentioned method avoids that the RRC connection reestablishment cannot be started in time in case that there are too few first type periods in the first time window.

[0574] As one sub-embodiment of the above-mentioned embodiment, the not greater than is less than.

[0575] As one sub-embodiment of the above-mentioned embodiment, the not greater than is less than or equal to.

[0576] As one sub-embodiment of the above-mentioned embodiment, the threshold is configurable.

[0577] As one sub-embodiment of the above-mentioned embodiment, the threshold is pre-configured.

[0578] As one sub-embodiment of the above-mentioned embodiment, the threshold is indicated by the prediction information of the first connection failure.

[0579] As one embodiment, the first type period depends on the measurement for the at least first reference signal.

[0580] As one embodiment, the first type period depending on the measurement for the at least first reference signal is that the first type period is a transmission period for one reference signal of the at least first reference signal.

[0581] As one sub-embodiment of the above-mentioned embodiment, the one reference signal is any reference signal of the at least first reference signal.

[0582] As one sub-embodiment of the above-mentioned embodiment, the one reference signal is the reference signal of the at least first reference signal with the largest transmission period.

[0583] As a sub-embodiment of the above-mentioned embodiment, the one reference signal is the one reference signal among the at least first reference signals with the most available reception occasions in the first time window.

[0584] As one embodiment, the first type of periodicity depends on an evaluation for the at least first reference signal.

[0585] As one embodiment, the first type of periodicity depending on an evaluation for the at least first reference signal means that the first type of periodicity is a predicted in-sync evaluation periodicity for the at least first reference signal.

[0586] As one embodiment, the first type of periodicity depending on an evaluation for the at least first reference signal means that the first type of periodicity is a predicted out-of-sync evaluation periodicity for the at least first reference signal.

[0587] As one embodiment, the first type of periodicity depends on a prediction for the at least first reference signal.

[0588] As one embodiment, the first type of periodicity depending on a prediction for the at least first reference signal means that the first type of occasion is a predicted indication periodicity for the at least first reference signal.

[0589] As one embodiment, the reference signal used by the first node U01 for performing connection failure prediction is the same as the reference signal used by the first node U01 for performing RLM.

[0590] As one embodiment, the reference signal used by the first node U01 for performing connection failure prediction is different from the reference signal used by the first node U01 for performing RLM.

[0591] As one embodiment, any of the reference signals used by the first node U01 for performing connection failure prediction belongs to the number of reference signals used by the first node U01 for performing RLM.

[0592] As one embodiment, the first condition is determined to be satisfied at least after the first connection failure is predicted.

[0593] As one embodiment, the first condition is determined to be satisfied at the start time of the first time interval after the first connection failure is predicted.

[0594] As one embodiment, the first condition is determined to be satisfied at the end time of the first time interval after the first connection failure is predicted.

[0595] As one embodiment, the first condition is determined to be satisfied as soon as the first connection failure is predicted.

[0596] As one embodiment, the first condition is judged whether it is satisfied as a response that the first connection failure is predicted.

[0597] As one embodiment, the evaluation occasion is only for clear expression, and in actual application, it can not exist.

[0598] As one embodiment, the prediction evaluation occasion is only for clear expression, and in actual application, it can not exist.

[0599] Embodiment 6

[0600] Embodiment 6 illustrates a diagram of the first condition according to one embodiment of the present application, as shown in FIG. 6. In the diagram 6, the horizontal axis represents time, the cross-filled box represents the first time window, t6.1 is the start time of the first time window, and t6.2 is the end time of the first time window.

[0601] In embodiment 6, the first condition includes that the length of the first time window is not greater than a first time length; the first time length is configured or the first time length is determined by the first node.

[0602] As one embodiment, as a response that the first connection failure is predicted, the first operation is started when at least the length of the first time window is not greater than the first time length.

[0603] As one embodiment, as a response that the first connection failure is predicted, the first operation is started when the length of the first time window is not greater than the first time length.

[0604] As one embodiment, the not greater than is less than; if the length of the first time window is greater than or equal to the first time length, the first condition is not satisfied.

[0605] As one embodiment, the not greater than is less than or equal to; if the length of the first time window is greater than the first time length, the first condition is not satisfied.

[0606] As one embodiment, the first time length includes a positive integer number of time slots.

[0607] As one embodiment, the first time length includes a positive integer number of half-frames.

[0608] As one embodiment, the first time length includes a positive integer number of radio frames.

[0609] As one embodiment, the first time length includes a positive integer number of symbols.

[0610] As one embodiment, the first time length comprises a positive integer number of milliseconds.

[0611] As one embodiment, the first time length comprises a positive integer number of transmission periods of the first reference signal.

[0612] As one embodiment, the first time length comprises a positive integer number of T SSB .

[0613] As one embodiment, the first time length comprises a positive integer number of T CSI-RS .

[0614] As one embodiment, the first time length comprises a positive integer number of synchronization evaluation periods.

[0615] As one embodiment, the first time length comprises a positive integer number of out-of-sync evaluation periods.

[0616] As one embodiment, the first time length comprises a positive integer number of indication periods.

[0617] As one embodiment, the first time length comprises a positive integer number of predicted synchronization evaluation periods.

[0618] As one embodiment, the first time length comprises a positive integer number of predicted out-of-sync evaluation periods.

[0619] As one embodiment, the first time length comprises a positive integer number of predicted indication periods.

[0620] As one embodiment, the first time length is explicitly configured.

[0621] As one embodiment, the first time length is implicitly configured.

[0622] As one embodiment, the first time length is configured by a RRC message.

[0623] As one embodiment, the first time length is jointly configured by a RRC message and lower layer signaling.

[0624] As one embodiment, the first time length is configured by a RRC message and activated by lower layer signaling.

[0625] As one embodiment, the first time length is configured by lower layer signaling.

[0626] As one embodiment, the lower layer is a MAC CE.

[0627] As one embodiment, the lower layer is a DCI.

[0628] As one embodiment, the first time length is determined by the first node.

[0629] As one sub-embodiment of the above embodiment, the determining comprises predicting.

[0630] As one sub-embodiment of the above embodiment, the determining comprises inferring.

[0631] As one sub-embodiment of the above embodiment, the determining comprises self-determining.

[0632] As one sub-embodiment of the above embodiment, the determining comprises UE implementation based determining.

[0633] As one sub-embodiment of the above embodiment, the determining comprises selecting.

[0634] Embodiment 7

[0635] Embodiment 7 illustrates a diagram of the first condition according to another embodiment of the present application, as shown in FIG. 7. In the FIG. 7, the horizontal axis represents time, the oblique filled block represents the first timer, t7.1 is the start time of the first timer, t7.2 is the time when the first connection failure is predicted, the first timer is running at t7.2, and t7.3 is the expiration time of the first timer.

[0636] In embodiment 7, the first condition comprises that the first timer is running; and the first timer is used for connection failure detection.

[0637] As one embodiment, the first timer is T304.

[0638] As one sub-embodiment of the above embodiment, the above method is beneficial to avoid triggering HOF too late.

[0639] As one sub-embodiment of the above embodiment, the first timer used for connection failure detection means that when the first timer expires, a reconfiguration with sync failure is detected.

[0640] As one sub-embodiment of the above embodiment, the predicted first connection failure is for a target PCell.

[0641] As one embodiment, the first timer is T310, or the first timer is T312.

[0642] As one sub-embodiment of the above embodiment, the above method is beneficial to avoid triggering RLF too late.

[0643] As one subembodiment of the above embodiment, the first timer for connection failure detection means that a source MCG is considered to be detected with radio link failure (consider radio link failure to be detected for the source MCG), i.e. source RLF, when the first timer expires.

[0644] As one subembodiment of the above embodiment, the predicted first connection failure is for a PCell.

[0645] As one embodiment, the first timer is T316.

[0646] As one subembodiment of the above embodiment, the method is beneficial for early termination of MCG fast recovery procedure and initiation of RRC connection reestablishment.

[0647] As one subembodiment of the above embodiment, the first timer for connection failure detection means that MCG fast recovery failure is detected when the first timer expires.

[0648] As one subembodiment of the above embodiment, the predicted first connection failure is for a PSCell.

[0649] As one embodiment, the first operation is initiated in response to at least the predicted first connection failure and the first timer being running.

[0650] As one embodiment, the first operation is initiated in response to the predicted first connection failure and the first timer being running.

[0651] As one embodiment, the first condition comprises the first timer being running and a length of the first time window being no more than a first time length; wherein the first time length is a remaining time of the first timer at the time when the first connection failure is predicted.

[0652] As one subembodiment of the above embodiment, the above sentence means that the first condition comprises an end time of the first time window being no later than a time when the first timer expires.

[0653] As one subembodiment of the above embodiment, the above sentence means that the first condition comprises the predicted occurrence time of the first connection failure being no later than a time when the first timer expires.

[0654] As one subembodiment of the above embodiment, the no later than is earlier.

[0655] As a sub-example of the above embodiment, the no later than is earlier than or equal to.

[0656] As a sub-example of the above embodiment, the first operation is initiated as a response that the first timer is running and the length of the first time window is not greater than the first time length.

[0657] As a sub-example of the above embodiment, the first operation is initiated as a response that the first timer is running and the length of the first time window is not greater than the first time length.

[0658] As an example, the target time length is equal to the value of the first timer.

[0659] As an example, the target time length is not equal to the value of the first timer.

[0660] As an example, the first time window is not less than the remaining time of the first timer.

[0661] As an example, the first time window is greater than the remaining time of the first timer.

[0662] As an example, the first time window is not greater than the remaining time of the first timer.

[0663] As an example, the first time window is less than the remaining time of the first timer.

[0664] As an example, the first time window includes the remaining time of the first timer and at least one predicted indication period after the time of expiration of the first timer.

[0665] As an example, the end time of the first time window is the time of expiration of the first timer.

[0666] As a sub-example of the above embodiment, the first time window is a time interval between the time when the first connection failure is predicted and the time of expiration of the first timer.

[0667] As a sub-example of the above embodiment, the first time window is the remaining time of the first timer.

[0668] As a sub-example of the above embodiment, the length of the first time window is equal to the value of the first timer when the first connection failure is predicted.

[0669] As an example, the end time of the first time window is the predicted time of occurrence of the first connection failure.

[0670] As a sub-embodiment of the above-mentioned embodiment, the first time window is a time interval between the time when the first connection failure is predicted and the predicted time of the occurrence of the first connection failure.

[0671] As an embodiment, the first operation is initiated before the expiration of the first timer when the first condition is met.

[0672] As an embodiment, the first operation is initiated and the first timer is stopped when the first condition is met; optionally, the first timer is stopped in the first operation, or the first timer before the initiation of the first operation.

[0673] As an embodiment, the above-mentioned method avoids the first timer continuing to run triggering the connection failure.

[0674] As an embodiment, the first connection failure is predicted means that the expiration of the first timer is predicted.

[0675] As an embodiment, the first connection failure is predicted is irrelevant to whether the first timer will expire.

[0676] Embodiment 8

[0677] Embodiment 8 illustrates a diagram of the first condition according to another embodiment of the present application, as shown in FIG. 8. In the FIG. 8, the horizontal axis represents time, the oblique filled block represents the first handover procedure, t8.1 is the start time of the first handover procedure, t8.2 is the time when the first connection failure is predicted, the first handover procedure is running at t8.2, and t8.3 is the end time of the first handover procedure.

[0678] In embodiment 8, the first condition includes that the first handover procedure is in progress; and the first connection failure is for the target cell of the first handover procedure.

[0679] As an embodiment, the first operation is the RRC connection reestablishment.

[0680] As an embodiment, the first operation includes determining a Reconfiguration with sync Failure and the RRC connection reestablishment.

[0681] As an embodiment, the determining a Reconfiguration with sync Failure means considering a Reconfiguration with sync Failure.

[0682] As an embodiment, the determining a Reconfiguration with sync Failure means considering a Reconfiguration with sync Failure.

[0683] As one embodiment, the first connection failure is a predicted RLF for the target cell of the first handover procedure.

[0684] As one embodiment, the first connection failure is a predicted HOF for the target cell of the first handover procedure.

[0685] As one embodiment, the T304 is not started in the first handover procedure.

[0686] As one embodiment, the T304 is started in the first handover procedure.

[0687] As one sub-embodiment of the above embodiment, the first handover procedure is ongoing including that the T304 is running.

[0688] As one sub-embodiment of the above embodiment, the first handover procedure is ongoing meaning that the T304 is running.

[0689] As one sub-embodiment of the above embodiment, the first condition includes that the T304 is running.

[0690] As one sub-embodiment of the above embodiment, the first condition includes that the T304 is running and the end time of the first time interval is earlier than the expiry time of the T304.

[0691] As one sub-embodiment of the above embodiment, the first condition includes that the T304 is running and the end time of the first time interval is later than the expiry time of the T304.

[0692] As one sub-embodiment of the above embodiment, the first condition is that the T304 is running.

[0693] As one sub-embodiment of the above embodiment, the T304 is started when the first handover procedure is performed.

[0694] As one sub-embodiment of the above embodiment, the first operation includes stopping the T304.

[0695] As one sub-embodiment of the above embodiment, in the first operation, the T304 is stopped.

[0696] As one embodiment, the first handover procedure is initiated by a network.

[0697] As one embodiment, the first handover procedure is initiated by the first node based on pre-configured execution conditions.

[0698] As one embodiment, the first condition includes that a length of the first time window is not greater than a first time length, and the first condition includes that the first handover procedure is ongoing.

[0699] As one embodiment, the first operation is initiated in response to the first connection failure being predicted and the first handover procedure being ongoing and the length of the first time window being no more than the first time length.

[0700] As one embodiment, the first condition depends on the first time window, and the first condition includes a first timer being running, and the first condition includes a first handover procedure being ongoing; the first timer is T310 or T312 of a PCell; the first connection failure being predicted is for a target PCell.

[0701] As one embodiment, the first operation is initiated in response to the first connection failure being predicted and the first handover procedure being ongoing and the first timer being running and the length of the first time window being no more than the first time length.

[0702] Embodiment 9

[0703] Embodiment 9 illustrates an example of a diagram of predicted in-sync indications or predicted out-of-sync indications within a first time window according to one embodiment of the present application, as shown in FIG. 9. In the diagram 9, the horizontal axis represents time, t9.1 is the start time of the first time window, t9.2 is the end time of the first time window, the solid single-headed arrow represents a predicted in-sync indication, the dashed single-headed arrow represents a predicted out-of-sync indication, and every other predicted indication period corresponds to a prediction evaluation occasion.

[0704] In embodiment 9, the first condition depending on the prediction results for the at least first reference signal in the first time window means that the first condition depends on at least one of a number of predicted in-sync indications or a number of predicted out-of-sync indications within the first time window; the predicted in-sync indication or the predicted out-of-sync indication depends on the at least first reference signal.

[0705] As one embodiment, the first condition includes there being at least P1 consecutive predicted out-of-sync indications within the first time window; the P1 is a positive integer.

[0706] As one embodiment, the first condition includes there being at least P2 consecutive predicted in-sync indications within the first time window; the P2 is a positive integer.

[0707] As an example, the first condition comprises that there are at least P1 consecutive predicted out-of-sync indications within the first time window and there are not at least P2 consecutive predicted in-sync indications within a second time window; the P1 is a positive integer; the P2 is a positive integer; a start time of the second time window depends on an end time of the first time window.

[0708] As an example, the first condition comprises that a ratio of the predicted out-of-sync indications within the first time window is not lower than a threshold.

[0709] As a sub-example of the above example, the not lower than is greater than.

[0710] As a sub-example of the above example, the not lower than is greater than or equal to.

[0711] As a sub-example of the above example, the threshold is configurable.

[0712] As a sub-example of the above example, the threshold is default.

[0713] As an example, the first condition comprises that a ratio of the predicted in-sync indications within the first time window is not higher than a threshold.

[0714] As a sub-example of the above example, the not higher than is less than.

[0715] As a sub-example of the above example, the not higher than is less than or equal to.

[0716] As a sub-example of the above example, the threshold is configurable.

[0717] As a sub-example of the above example, the threshold is default.

[0718] As an example, the first condition depends on at least one of a measurement or an evaluation or a prediction for the at least first reference signal in the first time window, and the first condition does not comprise that the first timer is running.

[0719] As a sub-example of the above example, the method avoids the first timer, and the first operation is easier to be triggered.

[0720] As a sub-example of the above example, the first condition is independent of whether the first timer is running.

[0721] As one embodiment, the first condition comprises the first timer being running and the first condition depends on at least one of a measurement or an evaluation or a prediction for the at least first reference signal in the first time window.

[0722] As one sub-embodiment of the above embodiment, the above method makes the first condition more stringent by the first timer, avoiding unnecessary first operation.

[0723] As one sub-embodiment of the above embodiment, the first condition comprises the first timer being running and there are at least P1 consecutive predicted out-of-sync indications in the first time window.

[0724] As one sub-embodiment of the above embodiment, the first condition comprises the first timer being running and there are not at least P2 consecutive predicted in-sync indications in the first time window.

[0725] As one sub-embodiment of the above embodiment, the first condition comprises the first timer being running and a proportion of the predicted out-of-sync indications in the first time window is not lower than a threshold.

[0726] As one sub-embodiment of the above embodiment, the first condition comprises the first timer being running and a proportion of the predicted in-sync indications in the first time window is not higher than a threshold.

[0727] As one embodiment, the first condition depends on at least one of a measurement or an evaluation or a prediction for the at least first reference signal in the first time window, and the first condition does not comprise the first switching procedure being ongoing.

[0728] As one embodiment, the first condition comprises the first switching procedure being ongoing and the first condition depends on at least one of a measurement or an evaluation or a prediction for the at least first reference signal in the first time window.

[0729] As one sub-embodiment of the above embodiment, the first condition comprises the first switching procedure being ongoing and there are at least P1 consecutive predicted out-of-sync indications in the first time window.

[0730] As one sub-embodiment of the above embodiment, the first condition comprises the first switching procedure being ongoing and there are not at least P2 consecutive predicted in-sync indications in the first time window.

[0731] As one sub-embodiment of the above-mentioned embodiment, the first condition comprises that the first switching procedure is ongoing and a ratio of the predicted out-of-sync indications within the first time window is not lower than a threshold.

[0732] As one sub-embodiment of the above-mentioned embodiment, the first condition comprises that the first switching procedure is ongoing and a ratio of the predicted in-sync indications within the first time window is not higher than a threshold.

[0733] As one sub-embodiment of the above-mentioned embodiment, optionally, the first condition further comprises that the first timer is running.

[0734] As one sub-embodiment of the above-mentioned embodiment, optionally, the first condition further comprises that a length of the first time window is not longer than the first time length.

[0735] In embodiment 9, the predicting the first connection failure depends on at least one of a number of predicted in-sync indications or a number of predicted out-of-sync indications within a first time window.

[0736] As one embodiment, the predicting the first connection failure is triggered by at least P1 consecutive predicted out-of-sync indications within the first time window; P1 is a positive integer.

[0737] As one embodiment, the predicting the first connection failure is triggered by at least P2 consecutive predicted in-sync indications not existing within the first time window; P2 is a positive integer.

[0738] As one embodiment, the predicting the first connection failure is triggered by at least P1 consecutive predicted out-of-sync indications within the first time window and at least P2 consecutive predicted in-sync indications not existing within a second time window; P1 is a positive integer; P2 is a positive integer; a start time of the second time window depends on an end time of the first time window.

[0739] As one embodiment, the predicting the first connection failure is triggered by a ratio of the predicted out-of-sync indications within the first time window being not lower than a threshold.

[0740] As one sub-embodiment of the above-mentioned embodiment, the not lower than is greater than.

[0741] As one sub-embodiment of the above-mentioned embodiment, the not lower than is greater than or equal to.

[0742] As one sub-embodiment of the above-mentioned embodiment, the threshold is configurable.

[0743] As a sub-embodiment of the above-mentioned embodiment, the one threshold is default.

[0744] As an embodiment, the ratio of the predicted synchronization indications in the first time window is no more than a threshold triggers the predicting the first connection failure.

[0745] As a sub-embodiment of the above-mentioned embodiment, the no more than is less than.

[0746] As a sub-embodiment of the above-mentioned embodiment, the no more than is less than or equal to.

[0747] As a sub-embodiment of the above-mentioned embodiment, the one threshold is configurable.

[0748] As a sub-embodiment of the above-mentioned embodiment, the one threshold is default.

[0749] As an embodiment, the first time window is implemented by a timer.

[0750] As an embodiment, the length of the first time window is indicated by the network.

[0751] As an embodiment, the length of the first time window is determined by the first node.

[0752] As an embodiment, the first time window includes at least the P1 predicted indication periods.

[0753] As an embodiment, the length of the first time window is no less than (P1-1) predicted indication periods.

[0754] As an embodiment, the length of the first time window is no less than (P1-1) predicted indication periods and no more than the P1 predicted indication periods.

[0755] As an embodiment, the first time window includes at least the P2 predicted indication periods.

[0756] As an embodiment, the length of the first time window is no less than (P2-1) predicted indication periods.

[0757] As an embodiment, the length of the first time window is no less than (P2-1) predicted indication periods and no more than the P2 predicted indication periods.

[0758] As an embodiment, the first time window includes at least (P1+P2) predicted indication periods.

[0759] As an embodiment, the first time window is no less than the remaining time of the first timer.

[0760] As one embodiment, the first time window is the remaining time of the first timer.

[0761] As one embodiment, the first time window is greater than the remaining time of the first timer.

[0762] As one embodiment, the first time window comprises the remaining time of the first timer and at least one predicted indication period after the time of expiration of the first timer.

[0763] As one embodiment, the P1 is pre-configured.

[0764] As one embodiment, the P1 is RRC signaling configured.

[0765] As one embodiment, the P1 is predicted.

[0766] As one embodiment, the P1 is smaller than N310.

[0767] As one embodiment, the method with P1 smaller than N310 facilitates earlier initiation of RRC connection re-establishment.

[0768] As one embodiment, the method with P1 smaller than N310 facilitates earlier prediction of connection failure.

[0769] As one embodiment, the P1 is greater than N310.

[0770] As one embodiment, the method with P1 greater than N310 avoids the impact of prediction error.

[0771] As one embodiment, the P1 is N310.

[0772] As one embodiment, the method is simple to implement.

[0773] As one embodiment, the P1 is the difference between N310 and R1; the R1 is the number of consecutive out-of-sync indications received since the time when the first connection failure is predicted.

[0774] As one embodiment, the P1 is N320.

[0775] As one embodiment, the P2 is pre-configured.

[0776] As one embodiment, the P2 is RRC signaling configured.

[0777] As one embodiment, the P2 is predicted.

[0778] As one embodiment, the P2 is N311.

[0779] As one embodiment, the method is simple to implement.

[0780] As one embodiment, the P2 is the difference between N311 and R2; the R2 is the number of consecutive synchronization indications received by the time the first connection failure is predicted.

[0781] As one embodiment, the P2 is less than N311.

[0782] As one embodiment, the method reduces the probability of initiating the first operation with a P2 less than N311.

[0783] As one embodiment, the method reduces the probability of predicting a connection failure with a P2 less than N311.

[0784] As one embodiment, the P2 is greater than N311.

[0785] As one embodiment, the method provides a fault tolerance rate of the prediction with a P2 greater than N311.

[0786] As one embodiment, the P2 is N321.

[0787] As one embodiment, the length of the second time window is equal to the value of T310.

[0788] As one embodiment, the second time window is the time of a predicted T310 run.

[0789] As one embodiment, the P2 consecutive synchronization indications predicted correspond to P2 consecutive prediction evaluation occasions.

[0790] As one embodiment, the P1 consecutive out-of-sync indications predicted correspond to P1 consecutive prediction evaluation occasions.

[0791] As one embodiment, the ratio of the predicted out-of-sync indications in the first time window refers to the ratio of the number of the predicted out-of-sync indications in the first time window to the number of prediction indication periods in the first time window.

[0792] As one embodiment, the ratio of the predicted out-of-sync indications in the first time window refers to the ratio of the number of the predicted out-of-sync indications in the first time window to the number of the predicted synchronization indications in the first time window.

[0793] As an embodiment, the ratio of the predicted synchronization indications in the first time window refers to a ratio of a number of the predicted synchronization indications in the first time window to a number of predicted indication periods in the first time window.

[0794] As an embodiment, the ratio of the predicted synchronization indications in the first time window refers to a ratio of a number of the predicted synchronization indications in the first time window to a number of the predicted out-of-sync indications in the first time window.

[0795] As an embodiment, the evaluation occasion can not exist in actual application for the sake of clarity.

[0796] As an embodiment, the prediction evaluation occasion can not exist in actual application for the sake of clarity.

[0797] As an embodiment, there is one predicted synchronization indication or one predicted out-of-sync indication at each prediction evaluation occasion.

[0798] As an embodiment, there is no predicted synchronization indication and no predicted out-of-sync indication at one prediction evaluation occasion.

[0799] Embodiment 10

[0800] Embodiment 10 illustrates a schematic diagram of evaluation or prediction for at least a first reference signal according to an embodiment of the present application, as shown in FIG. 10. In the FIG. 10, the horizontal axis represents time; every other indication period corresponds to an evaluation occasion, and the time interval between two adjacent evaluation occasions is an indication period; every other prediction indication period corresponds to a prediction evaluation occasion, and the time interval between two adjacent prediction evaluation occasions is a prediction indication period.

[0801] As an embodiment, the length of the synchronization evaluation period refers to T Evaluate_in_SSB .

[0802] As an embodiment, the length of the out-of-sync evaluation period refers to T Evaluate_out_SSB .

[0803] As an embodiment, the length of the synchronization evaluation period is equal to the length of the out-of-sync evaluation period.

[0804] As an embodiment, the length of the synchronization evaluation period is not equal to the length of the out-of-sync evaluation period.

[0805] As one embodiment, the length of the predicted in-sync evaluation period is equal to the length of the in-sync evaluation period.

[0806] As one embodiment, the length of the predicted in-sync evaluation period is not equal to the length of the in-sync evaluation period.

[0807] As one embodiment, the length of the predicted in-sync evaluation period is equal to the length of the in-sync evaluation period.

[0808] As one embodiment, the length of the predicted in-sync evaluation period is not equal to the length of the in-sync evaluation period.

[0809] As one embodiment, the length of the predicted indication period is equal to the length of the indication period.

[0810] As one embodiment, the above method can maintain the continuity of the predicted in-sync indication and / or the predicted out-of-sync indication based on the in-sync indication and / or the out-of-sync indication.

[0811] As one embodiment, the length of the predicted indication period is not equal to the length of the indication period.

[0812] As one embodiment, the above method makes the prediction more flexible independently of the in-sync indication and / or the out-of-sync indication.

[0813] As one embodiment, the embodiment does not limit the position in the evaluation occasion prediction indication period.

[0814] As one embodiment, in the embodiment, the evaluation occasion is only for the sake of clarity, and is evaluated every other indication period to determine whether there is an out-of-sync indication or an in-sync indication, and in actual application, no specific limitation is made.

[0815] As one embodiment, the predicted evaluation occasion is only for the sake of clarity, and is evaluated every other predicted indication period to determine whether there is a predicted out-of-sync indication or a predicted in-sync indication, and in actual application, no specific limitation is made.

[0816] Embodiment 11

[0817] Embodiment 11 illustrates a structural block diagram of a processing device in a first node according to one embodiment of the present application; as shown in FIG. 11. In FIG. 11, the processing device 1100 in the first node includes a first processor 1101.

[0818] The first processor 1101 predicts a first connection failure; as a response to the first connection failure being predicted, determines whether to start a first operation according to whether a first condition is met, the first operation including RRC connection reestablishment;

[0819] In Embodiment 11, the determining whether to initiate the first operation according to whether the first condition is satisfied comprises:

[0820] initiating the first operation when the first condition is satisfied;

[0821] wherein the first condition depends on a first time window, and the first time window depends on at least one of a time when the first connection failure is predicted and a predicted time of occurrence of the first connection failure.

[0822] As one embodiment, the first processing machine receives at least a first reference signal; wherein the first condition depends on at least one of a measurement, an evaluation or a prediction for the at least first reference signal in the first time window.

[0823] As one embodiment, the first processing machine receives a first message; wherein the first message indicates that the at least first reference signal is used for radio link monitoring.

[0824] As one embodiment, the predicting the first connection failure depends on the at least first reference signal.

[0825] As one embodiment, the first processing machine 1101 sends first UE capability information; receives a second message; wherein the first UE capability information indicates that the first node supports connection failure prediction; the second message enables the connection failure prediction; and the determining whether to initiate the first operation according to whether the first condition is satisfied depends on the connection failure prediction.

[0826] As one embodiment, the first condition comprises that a length of the first time window is not greater than a first time length; and the first time length is configured or the first time length is determined by the first node.

[0827] As one embodiment, the first condition comprises that a first timer is running; and the first timer is used for connection failure detection.

[0828] As one embodiment, the first condition comprises that a first handover procedure is ongoing; and the first connection failure is for a target cell of the first handover procedure.

[0829] As one embodiment, the first condition depends on the first time window, and the first condition comprises that at least one of a length of the first time window is not greater than a first time length or a first timer is running or a first handover procedure is ongoing.

[0830] As an embodiment, the first condition depends on at least one of a measurement or an evaluation or a prediction for the at least first reference signal in the first time window, and the first condition comprises at least one of a length of the first time window not being greater than a first time length or the first timer being running or a first switching procedure being ongoing.

[0831] As an embodiment, the first condition depends on at least one of a number of the synchronization indications or a number of the out-of-sync indications predicted within the first time window, and the first condition comprises at least one of a length of the first time window not being greater than the first time length or the first timer being running or the first switching procedure being ongoing.

[0832] As an embodiment, the first processing machine 1101 comprises a first receiver.

[0833] As an embodiment, the first receiver receives the at least first reference signal.

[0834] As an embodiment, the first receiver receives the first message.

[0835] As an embodiment, the first receiver receives the second message.

[0836] As an embodiment, the first processing machine 1101 comprises a first transmitter.

[0837] As an embodiment, the first transmitter transmits the first UE capability information.

[0838] As an embodiment, the first processing machine 1101 comprises the third module in Figure 15; the third module predicts the first connection failure.

[0839] As an embodiment, the first processing machine 1101 comprises the intelligent module 1501 in Figure 14; the intelligent module 1501 predicts the first connection failure.

[0840] As an embodiment, the first processing machine 1101 comprises the inference function 1806 in Figure 17; the inference function 1806 predicts the first connection failure.

[0841] As an embodiment, the first receiver comprises at least one of the antenna 452 or the receiver 454 or the multi-antenna reception processor 458 or the reception processor 456 or the controller / processor 459 or the memory 460 or the data source 467 in Figure 4.

[0842] As one embodiment, the first receiver includes at least the antenna 452 and the receiver 454 in FIG. 4 of the present application.

[0843] As one embodiment, the first transmitter includes at least one of the antenna 452 or the transmitter 454 or the multi-antenna transmit processor 457 or the transmit processor 468 or the controller / processor 459 or the memory 460 or the data source 467 in FIG. 4 of the present application.

[0844] As one embodiment, the first transmitter includes at least the antenna 452 and the transmitter 454 in FIG. 4 of the present application.

[0845] Embodiment 12

[0846] Embodiment 12 illustrates a structural block diagram of a processing apparatus in a second node according to an embodiment of the present application; as shown in FIG. 12. In FIG. 12, the processing apparatus 1200 in the second node includes a second transmitter 1201 and a second receiver 1202.

[0847] The second transmitter 1201 transmits at least a first reference signal;

[0848] In Embodiment 12, one receiver of the at least first reference signal predicts a first connection failure; as a response to the first connection failure being predicted, the one receiver determines whether to initiate a first operation according to whether a first condition is satisfied, the first operation including RRC connection reestablishment; wherein the determining whether to initiate the first operation according to whether the first condition is satisfied includes: initiating the first operation when the first condition is satisfied; wherein the first condition depends on a first time window, the first time window depending on at least one of a time when the first connection failure is predicted and a predicted occurrence time of the first connection failure; the first condition depending on at least one of a measurement or an evaluation or a prediction for the at least first reference signal in the first time window.

[0849] As one embodiment, the second transmitter 1201 transmits a first message; wherein the first message indicates that the at least first reference signal is used for radio link monitoring; the predicting the first connection failure depends on the at least first reference signal.

[0850] As one embodiment, the second receiver 1202 receives first UE capability information; the second transmitter transmits a second message; wherein the first UE capability information indicates that the one receiver supports connection failure prediction; the second message enables the connection failure prediction; the determining whether to initiate the first operation according to whether the first condition is satisfied depends on the connection failure prediction.

[0851] As one embodiment, the first condition comprises a length of the first time window is not greater than a first time length; the first time length is configured or the first time length is determined by the one receiver.

[0852] As one embodiment, the first condition comprises a first timer is running; the first timer is used for connection failure detection.

[0853] As one embodiment, the first condition comprises a first handover procedure is ongoing; the first connection failure is for a target cell of the first handover procedure.

[0854] As one embodiment, the processing device 1200 in the second node comprises a third module in Figure 15.

[0855] As one embodiment, the processing device 1200 in the second node comprises a training function 1805 of RAN domain in Figure 17.

[0856] As one embodiment, the processing device 1200 in the second node comprises an inference function 1806 in Figure 17.

[0857] As one embodiment, the processing device 1200 in the second node comprises one inference function, 1704 or 1706, in Figure 16.

[0858] As one embodiment, the second transmitter 1201 comprises at least one of the antenna 420 or the transmitter 418 or the multi-antenna transmit processor 471 or the transmit processor 416 or the controller / processor 475 or the memory 476 in Figure 4 of the present application.

[0859] As one embodiment, the second transmitter 1201 comprises at least the antenna 420 and the transmitter 418 in Figure 4 of the present application.

[0860] As one embodiment, the second receiver 1202 comprises at least one of the antenna 420 or the receiver 418 or the multi-antenna receive processor 472 or the receive processor 470 or the controller / processor 475 or the memory 476 in Figure 4 of the present application.

[0861] As one embodiment, the second receiver 1202 comprises at least the antenna 420 and the receiver 418 in Figure 4 of the present application.

[0862] Embodiment 13

[0863] Embodiment 13 illustrates a flowchart of the first state according to one embodiment of the present application, as shown in Figure 13. Embodiment 13 illustrates a schematic diagram of the intelligent model according to one embodiment of the present application, as shown in Figure 13.

[0864] For the first node U01, in step S1401, a first connection failure is predicted; in step S1402, in response to said predicting said first connection failure, a first status is triggered; in step S1403, any condition in a first condition set is met; in step S1404, in response to said any condition in said first condition set being met, said first status that is triggered is cancelled.

[0865] As an embodiment, said first status is triggered pending until said first status is cancelled.

[0866] As an embodiment, said pending means triggered and not cancelled.

[0867] As an embodiment, said pending means pending.

[0868] As an embodiment, said pending means set.

[0869] As an embodiment, said pending means stored.

[0870] As an embodiment, dashed box 14.1 is optional.

[0871] As an embodiment, said dashed box 14.1 is absent.

[0872] As a sub-embodiment of the above embodiment, any condition in said first condition set is not met.

[0873] As a sub-embodiment of the above embodiment, said first status is not cancelled.

[0874] As an embodiment, said dashed box 14.1 is present.

[0875] As a sub-embodiment of the above embodiment, at least one condition in said first condition set is met.

[0876] As a sub-embodiment of the above embodiment, said first status is cancelled.

[0877] As an embodiment, one condition in said first condition set comprises said predicted first connection failure being predicted to be eliminated.

[0878] As an embodiment, one condition in said first condition set comprises initiating a handover procedure.

[0879] As an embodiment, one condition in said first condition set comprises entering an RRC_INACTIVE state.

[0880] As one embodiment, one condition in the first set of conditions comprises entering RRC_IDLE state.

[0881] As one embodiment, one condition in the first set of conditions comprises the intelligent model being deactivated.

[0882] As one embodiment, one condition in the first set of conditions comprises the intelligent model being deleted.

[0883] As one embodiment, one condition in the first set of conditions comprises the intelligent model being reconfigured.

[0884] As one embodiment, one condition in the first set of conditions comprises at least one of the predicted first connection failure being predicted to be eliminated or a handover procedure being initiated or an RRC connection reestablishment being initiated or entering RRC_INACTIVE state or entering RRC_IDLE state or the intelligent model being deactivated or the intelligent model being deleted or the intelligent model being reconfigured.

[0885] As one embodiment, the cancel refers to cancel.

[0886] As one embodiment, the cancel refers to release.

[0887] As one embodiment, the cancel refers to delete.

[0888] As one embodiment, the cancel refers to clear.

[0889] As one embodiment, the cancel refers to no longer store.

[0890] As one embodiment, the first time window is a time interval in which the first state is pending.

[0891] As one embodiment, the first time window is at least a time interval in which the first state is triggered and pending.

[0892] Embodiment 14

[0893] Embodiment 14 illustrates a diagram of a first notification according to one embodiment of the application, as shown in FIG. 14. The first processor 1500 of the first node comprises an intelligent module 1501 and a legacy module 1502.

[0894] In embodiment 14, a legality module 1502 of the first handler 1500 receives a first notification, the first notification indicating that the first connection failure is predicted; an intelligence module 1501 of the first handler 1500 predicts the first connection failure; the first notification is sent in response to the prediction of the first connection failure; the first handler includes the legality module and the intelligence module.

[0895] As one embodiment, the first notification includes the prediction information of the first connection failure.

[0896] As one embodiment, the first notification is the prediction information of the first connection failure.

[0897] As one embodiment, in response to the first notification being received, a first indication is sent to a lower layer; the first indication is received at an RRC sublayer.

[0898] As one embodiment, in response to the first notification being received, a first indication is sent to an upper layer; the first indication is received at an RRC sublayer.

[0899] As one embodiment, the first indication indicates the first notification.

[0900] As one embodiment, the first indication includes the first notification.

[0901] As one embodiment, the legality module is logical.

[0902] As one embodiment, the legality module is physical.

[0903] As one embodiment, the legality module triggers a legality event of connection failure detection.

[0904] As one embodiment, the legality module detects the connection failure.

[0905] As one embodiment, the legality module determines whether to perform a target operation based on a first event.

[0906] As one embodiment, the legality module is a protocol entity.

[0907] As one embodiment, the legality module is an RRC protocol entity.

[0908] As one embodiment, the legality module is at an RRC sublayer.

[0909] As one embodiment, the legality module is at an upper layer of an RRC sublayer.

[0910] As one embodiment, the legality module is at a lower layer of an RRC sublayer.

[0911] As one embodiment, the lawful module supports 3GPP Release 17.

[0912] As one embodiment, the lawful module supports 3GPP Release 18.

[0913] As one embodiment, the lawful module does not have any one of a training function or an inference function.

[0914] As one embodiment, the lawful module is not an intelligent module.

[0915] As one embodiment, the intelligent module is a hardware.

[0916] As one embodiment, the intelligent module is a software.

[0917] As one embodiment, the intelligent module is a program.

[0918] As one embodiment, the intelligent module is a function.

[0919] As one embodiment, the intelligent module is a protocol entity.

[0920] As one embodiment, the intelligent module is an AI entity.

[0921] As one embodiment, the intelligent module is an ML entity.

[0922] As one embodiment, the intelligent module is an AI / ML entity.

[0923] As one embodiment, the intelligent module is logical.

[0924] As one embodiment, the intelligent module is physical.

[0925] As one embodiment, the intelligent module predicts a connection failure.

[0926] As one embodiment, the intelligent module processes the at least one intelligent model.

[0927] As one embodiment, the intelligent module includes at least one of the second module or the third module in the intelligent model of embodiment 15.

[0928] As one embodiment, an interface between the lawful module and the intelligent module is defined by a 3GPP protocol.

[0929] As one embodiment, an interface between the lawful module and the intelligent module is based on a UE implementation.

[0930] As one embodiment, the interface between the legal module and the intelligent module is logical.

[0931] As one embodiment, the interface between the legal module and the intelligent module is physical.

[0932] As one embodiment, the legal module 1502 of the first processor optionally receives a second notification indicating that the predicted first connection failure is predicted to be eliminated; the intelligent module 1501 of the first processor sends the second notification.

[0933] As one sub-embodiment of the above-mentioned embodiment, the above-mentioned method avoids triggering unreasonable UE behavior by updating prediction information.

[0934] As one sub-embodiment of the above-mentioned embodiment, the above-mentioned method is beneficial to UE decision.

[0935] As one sub-embodiment of the above-mentioned embodiment, the first condition is not met, and the first operation is not started.

[0936] As one sub-embodiment of the above-mentioned embodiment, the predicted first connection failure predicted to be eliminated means that it is predicted that there will be no connection failure at the predicted occurrence time of the first connection failure.

[0937] Embodiment 15

[0938] Embodiment 15 illustrates a schematic diagram of an intelligent model according to one embodiment of the present application, as shown in FIG. 15. FIG. 15 includes a first module, a second module, a third module, a fourth module and a fifth module.

[0939] In embodiment 15, in the intelligent model shown in FIG. 15, the first module sends a first data set to the second module, the first module sends a second data set to the third module, the first module sends a third data set to the fifth module, the fifth module sends a first type of parameter group to the second module, the fifth module sends a second type of parameter group to the third module, the fifth module sends a third type of parameter group to the fourth module, the second module sends a fourth type of parameter group to the fourth module, and the fourth module sends a fifth type of parameter group to the third module.

[0940] As one embodiment, the first module, the second module, the third module, the fourth module and the fifth module in one intelligent model all belong to the first node.

[0941] The above-mentioned method avoids air interface signaling interaction and shortens transmission delay.

[0942] As an embodiment, any of the first module, the second module, the third module, the fourth module and the fifth module in one intelligent model does not belong to the first node.

[0943] The above method reduces the hardware complexity of the first node.

[0944] As an embodiment, at least one of the first module, the second module, the third module, the fourth module and the fifth module in one intelligent model belongs to the first node; and at least one of the first module, the second module, the third module, the fourth module and the fifth module belongs to the network node.

[0945] The above method balances the hardware complexity and transmission delay of the first node.

[0946] As an embodiment, the first module is used for data collection.

[0947] As an embodiment, the first module is responsible for data collection.

[0948] As an embodiment, the first module has the function of data collection.

[0949] As an embodiment, the second module has the function of training.

[0950] As an embodiment, the training function is used for model training.

[0951] As an embodiment, the training function is responsible for model training.

[0952] As an embodiment, the training function has the function of model training.

[0953] As an embodiment, the training function performs model training.

[0954] As an embodiment, the second module performs validation.

[0955] As an embodiment, the second module performs testing.

[0956] As an embodiment, the second module generates model performance metrics.

[0957] As an embodiment, the second module is responsible for data preparation.

[0958] As an example, the data preparation includes at least one of data pre-processing or cleaning or formatting or transformation.

[0959] As an example, the third module is capable of inference.

[0960] As an example, the inference function is for inference.

[0961] As an example, the inference function is responsible for inference.

[0962] As an example, the fourth module is for model storage.

[0963] As an example, the fourth module is capable of model storage function.

[0964] As an example, the fourth module is responsible for storing trained models.

[0965] As an example, the fourth module is responsible for storing trained models that can be used to perform inference processing.

[0966] As an example, the fifth module is for management.

[0967] As an example, the fifth module is responsible for management.

[0968] As an example, the fifth module is capable of management function.

[0969] As an example, the fifth module manages intelligent models.

[0970] As an example, the first data set is training data.

[0971] As an example, the first data set is the input to the second module.

[0972] As an example, the second data set is inference data.

[0973] As an example, the second data set is the input to the third module.

[0974] As an example, the third data set is monitoring data.

[0975] As one embodiment, the third dataset is an input to the fifth module.

[0976] As one embodiment, the first type of parameter set comprises Monitoring output.

[0977] As one embodiment, the second type of parameter set comprises Management Instruction.

[0978] As one embodiment, the second type of parameter set is used for fine-tune operation of inference function.

[0979] As one embodiment, the second type of parameter set comprises an identification of a model.

[0980] As one embodiment, the second type of parameter set is used for selecting a model.

[0981] As one embodiment, the second type of parameter set is used for switching a model.

[0982] As one embodiment, the second type of parameter set is used for activating / deactivating a model.

[0983] As one embodiment, the second type of parameter set is used for fallback intelligent model.

[0984] As one embodiment, the third type of parameter set comprises Model Transfer Request.

[0985] As one embodiment, the third type of parameter set comprises Model Delivery Request.

[0986] As one embodiment, the fourth type of parameter set comprises Trained Model.

[0987] As one embodiment, the fourth type of parameter set comprises Updated Model.

[0988] As one embodiment, the fourth type of parameter set indicates an identification of a model.

[0989] As one embodiment, the fifth type of parameter set comprises Model Transfer.

[0990] As one embodiment, the fifth type of parameter set comprises Model Delivery.

[0991] As one embodiment, the fifth set of parameters indicates an identification of a model.

[0992] As one embodiment, the first type of output is absent.

[0993] As one embodiment, the first type of output is present.

[0994] As one embodiment, the second module sends the first type of output to the fifth module.

[0995] As one embodiment, the first type of output comprises a monitoring output.

[0996] As one embodiment, the second type of output is absent.

[0997] As one embodiment, the second type of output is present.

[0998] As one embodiment, the third module sends the second type of output to the fifth module.

[0999] As one embodiment, the second type of output comprises an inference output.

[1000] As one embodiment, the second type of output is used by the fifth module to monitor performance of an AI / ML model.

[1001] As one embodiment, the second type of output indicates that the first connection failure is predicted.

[1002] As one embodiment, the second type of output comprises prediction information of the first connection failure.

[1003] As one embodiment, the second type of output comprises the first notification.

[1004] As one embodiment, the second type of output comprises the second notification.

[1005] As one embodiment, the second type of output indicates a parameter of the first time window.

[1006] As one embodiment, the second type of output indicates the target time length.

[1007] As one embodiment, the second type of output indicates a predicted time of occurrence of the first connection failure.

[1008] As one embodiment, the first dataset in the intelligent model is configured by a network.

[1009] As an embodiment, the first data set in the intelligent model is determined by the first node.

[1010] As an embodiment, the first data set in the intelligent model comprises stored data of the first node; the stored data can be from the network, can also be from logs of the first node, and can also be from other RAN nodes.

[1011] As an embodiment, the first data set in the intelligent model comprises measurement information of the first node; the measurement information can be a moving state of the first node, for example, a moving speed, or a number of switched cells in a given time interval, etc.; the measurement information can also be a measurement result for a reference signal, for example, a cell-level measurement result, or a beam-level measurement result, or a time-domain measurement result, or a frequency-domain measurement result, or a spatial-domain measurement result, or a combination thereof, etc.

[1012] As an embodiment, the first data set in the intelligent model comprises a measurement result for the at least first reference signal.

[1013] As an embodiment, the second data set in the intelligent model is configured by the network.

[1014] As an embodiment, the second data set in the intelligent model is determined by the first node.

[1015] As an embodiment, the second data set in the intelligent model comprises stored data of the first node; the stored data can be from the network, can also be from logs of the first node, and can also be from other RAN nodes.

[1016] As an embodiment, the second data set in the intelligent model comprises measurement information of the first node; the measurement information can be a moving state of the first node, for example, a moving speed, or a number of switched cells in a given time interval, etc.; the measurement information can also be a measurement result for a reference signal, for example, a cell-level measurement result, or a beam-level measurement result, or a time-domain measurement result, or a frequency-domain measurement result, or a spatial-domain measurement result, or a combination thereof, etc.

[1017] As an embodiment, the second data set in the intelligent model comprises a measurement result for the at least first reference signal.

[1018] As an embodiment, the third data set in the intelligent model is configured by the network.

[1019] As an embodiment, the third data set in the intelligent model is determined by the first node.

[1020] As an embodiment, the third data set in the intelligent model includes storage data of the first node; the storage data can be from a network, can also be from a log of the first node, and can also be from other RAN nodes.

[1021] As an embodiment, the third data set in the intelligent model includes measurement information of the first node; the measurement information can be a mobile state of the first node, for example, a moving speed, or a number of switched cells in a given time interval, etc.; the measurement information can also be a measurement result for a reference signal, for example, a cell-level measurement result, or a beam-level measurement result, or a time-domain measurement result, or a frequency-domain measurement result, or a space-domain measurement result, or a combination thereof, etc.

[1022] As an embodiment, the third data set in the intelligent model includes a measurement result for the at least first reference signal.

[1023] As an embodiment, the first connection failure is predicted by the intelligent model.

[1024] As an embodiment, the embodiment 15 is only for illustrating that the present application can be applied to an intelligent model, the embodiment does not limit that the present application is applied to a non-intelligent operation, and the embodiment does not limit that the present application is applied to other types of intelligent models to achieve an effect equivalent to the intelligent model shown in the figure 15.

[1025] Embodiment 16

[1026] The embodiment 16 illustrates a schematic diagram of an intelligent function deployment of a RAN (Radio Access Network) domain according to an embodiment of the present application; as shown in the figure 16. The gNB in the embodiment 16 can be replaced by a network device such as an eNB, or a 6G base station, etc.

[1027] The intelligent functions of the RAN domain include training (also referred to as ML training, or AI training, or AI / ML training) functions, testing (also referred to as ML testing, or AI testing, or AI / ML testing) functions, inference (also referred to as ML inference, or AI inference, or AI / ML inference) functions, and the like. The training functions, the testing functions, the inference functions can be deployed independently, or can be co-located. The deployment of the intelligent functions can be implemented by software, such as the download and / or running of executable files; or can be implemented by software in combination with hardware, such as the acceleration of specific computing units by hardware to improve the operation speed or save power consumption.

[1028] For the training functions, can be deployed in a cross-domain management system, or a domain-specific management system for managing the RAN domain or the CN (Core Network) domain. For example, the training functions for MDA (Management Data Analytics) can be deployed in a MDAF (MDA function); the training for network data analytics can be deployed in a NWDAF (Network Data Analytics Function), i.e., the training functions are MTLF (Model Training logical function).

[1029] For the inference functions, can also be deployed in a cross-domain management system, or a domain-specific management system; for example, the inference functions are MDAF, or the inference functions are AnLF (Analytics logical function) in the NWDAF.

[1030] Similarly, the testing functions can also be deployed in a cross-domain management system, or a domain-specific management system.

[1031] In embodiment 16, the training functions 1702 of the RAN domain are located in the management functions 1703 of the RAN domain; and the inference functions are located in the base stations, i.e., the inference functions 1704 are located in the gNB 1705, the inference functions 1706 are located in the gNB 1707, and the like.

[1032] In FIG. 16, the management of the inference function of the plurality of base stations is completed by the RAN domain management function 1703, i.e., data interaction with the RAN domain MnS (Management Service) consumer / cross-domain management 1701 (as shown by the dashed arrow 1708 in FIG. 16).

[1033] Optionally, the management of the inference function can also be completed by the base station itself, i.e., each base station can independently interact with the RAN domain MnS consumer / cross-domain management 1701.

[1034] It should be noted that the embodiment 16 is only one non-limiting implementation; optionally, the training function of the RAN domain can also be deployed at the base station; or optionally, part of the base stations deploy the inference function and the training function of the RAN domain, and part of the base stations only deploy the inference function.

[1035] As one embodiment, one gNB (or base station) in the embodiment 16 is the second node of the present application.

[1036] As one embodiment, one inference function in FIG. 16 predicts the first connection failure.

[1037] Embodiment 17

[1038] The embodiment 17 illustrates a schematic diagram of UE intelligent function deployment according to one embodiment of the present application; as shown in FIG. 17. The training function of the RAN domain 1805 in FIG. 17 is optional.

[1039] The UE intelligent function 1804 is deployed in the first node of the present application, and the UE intelligent function 1804 includes an inference function 1806; the inference function 1806 uses an intelligent model (also referred to as an AI model, or an ML model, or an AI / ML model) for inference; one intelligent model usually undergoes training before being used for AI / ML inference.

[1040] As one embodiment, the UE intelligent function 1804 includes the training function of the RAN domain 1805, which runs training data through the intelligent model to derive relevant loss, and adjusts the parameters of the intelligent model based on the calculated loss; the training includes at least one of ML initial training, ML re-training, and reinforcement learning.

[1041] The above embodiments can reduce the complexity of the base station, or save the air interface resources caused by the reporting of the training data; however, the above embodiments put higher requirements on the processing capability of the UE side.

[1042] Optionally, the UE intelligent function 1804 further comprises a training function in the CN domain (not included in FIG. 18).

[1043] Optionally, the UE intelligent function 1804 further comprises an intelligent deployment function (not included in FIG. 18) for loading intelligent models and data.

[1044] As an embodiment, the first node indicates whether to support the training function (in the RAN domain or the CN domain) through capability reporting, and the capability reporting is RRC signaling or NAS (Non-Access Stratum) signaling.

[1045] As an embodiment, the intelligent model and related metadata are loaded by the first node from a network device or a remote server.

[1046] Optionally, the UE intelligent function 1804 is an MnS (Management Service) producer that provides data to the CN domain MnF (Management Function) 1801, and / or the RAN domain MnF 1802, and / or the cross-domain management system 1803 for management or analysis (as indicated by double-headed arrow 1507).

[1047] Optionally, the UE intelligent function 1804 is an MnS consumer that loads data from the CN domain MnF 1801, and / or the RAN domain MnF 1802, and / or the cross-domain management system 1803 for AI / ML-related management, such as management data requests, intelligent model activation, and / or intelligent model training (as indicated by double-headed arrow 1807).

[1048] As an embodiment, the intelligent model is based on a neural network.

[1049] As an embodiment, the intelligent model is based on a CNN (Conventional Neural Networks).

[1050] As an embodiment, the intelligent model is based on a Transformer architecture.

[1051] As an embodiment, the first node in the present application comprises the inference function 1806 in FIG. 17.

[1052] As one example, the first processing machine in the present application includes the inference function 1806 in FIG. 17.

[1053] As one example, the UE 201 in FIG. 2 includes the inference function 1806 in FIG. 17.

[1054] As one example, the first communication device 450 in FIG. 4 includes the inference function 1806 in FIG. 17.

[1055] As one example, the first processing machine 1101 in FIG. 11 includes the inference function 1806 in FIG. 17.

[1056] As one example, the intelligent module 1501 in FIG. 14 includes the inference function 1806 in FIG. 17.

[1057] As one example, the third module in FIG. 15 includes the inference function 1806 in FIG. 17.

[1058] As one example, the inference function 1806 in FIG. 17 predicts the first connection failure.

[1059] Embodiment 18

[1060] Embodiment 18 illustrates an artificial intelligence or machine learning based flowchart according to an embodiment of the present application; as shown in FIG. 18. FIG. 18 includes a third operation, a fourth operation, a fifth operation, a sixth operation, and a seventh operation. In Embodiment 18, the third operation and the fourth operation belong to a first phase, the fifth operation belongs to a second phase, the sixth operation belongs to a third phase, and the seventh operation belongs to a fourth phase. In FIG. 18, the line with an arrow indicates the order of the flow.

[1061] As one example, the third operation includes AI / ML training, the fourth operation includes AI / ML testing, the fifth operation includes AI / ML emulation, the sixth operation includes AI / ML entity loading, and the seventh operation includes AI / ML inference.

[1062] As one example, the first phase includes a training phase, the second phase includes an emulation phase, the third phase includes a deployment phase, and the fourth phase includes an inference phase.

[1063] As one embodiment, the first stage includes AI / ML model training.

[1064] As one embodiment, the first stage includes AI / ML model training and AI / ML testing.

[1065] As one embodiment, the AI / ML model training includes initial training and re-training of one or a set of AI / ML entities.

[1066] As one embodiment, the AI / ML model training relies on training data.

[1067] As one embodiment, the AI / ML model training includes AI / ML entity validation.

[1068] As one embodiment, the AI / ML entity validation is used to evaluate the performance of the AI / ML entity.

[1069] As one embodiment, the AI / ML entity validation relies on validation data.

[1070] As one embodiment, if the result of AI / ML entity validation does not meet the expectation, the AI / ML model will be re-trained.

[1071] As one embodiment, the AI / ML testing includes testing the validated AI / ML entity to evaluate the performance of the trained AI / ML model.

[1072] As one embodiment, if the result of AI / ML testing meets the expectation, the AI / ML entity proceeds to the next stage; otherwise, the AI / ML model will be re-trained.

[1073] As one embodiment, the AI / ML testing relies on testing data.

[1074] As one embodiment, the second stage includes AI / ML simulation, which simulates the inference of the AI / ML entity in a simulation environment.

[1075] As one embodiment, the AI / ML simulation is to evaluate the performance of the inference of the AI / ML entity in a simulation environment before the AI / ML entity is used.

[1076] As one embodiment, the second stage is optional.

[1077] As one embodiment, the third stage includes AI / ML entity loading for obtaining trained AI / ML entity for desired AI / ML inference functionality.

[1078] As one embodiment, the third stage is optional.

[1079] As one embodiment, the third stage is not needed when training functionality and inference functionality are co-located.

[1080] As one embodiment, the fourth stage includes AI / ML inference.

[1081] A person of ordinary skill in the art can understand that all or part of the steps in the above method can be instructed by a program to complete the relevant hardware, and the program can be stored in a computer readable storage medium, such as a read-only memory, a hard disk, or an optical disk, etc. Alternatively, all or part of the steps of the above embodiment can also be implemented using one or more integrated circuits. Correspondingly, each module unit in the above embodiment can be implemented in the form of hardware or in the form of a software function module, and the present application is not limited to any specific form of combination of software and hardware. The user equipment, terminal and UE in the present application include but are not limited to unmanned aerial vehicles, communication modules on unmanned aerial vehicles, remote control aircraft, aircraft, small aircraft, mobile phones, tablet computers, notebooks, vehicle-mounted communication devices, wireless sensors, network cards, Internet of Things terminals, RFID terminals, NB-IOT terminals, MTC (Machine Type Communication) terminals, eMTC (enhanced MTC) terminals, data cards, network cards, vehicle-mounted communication devices, low-cost mobile phones, low-cost tablet computers, and other wireless communication devices. The base station or system device in the present application includes but is not limited to macro cellular base stations, micro cellular base stations, home base stations, relay base stations, gNB (NR NodeB) NR NodeB, TRP (Transmitter Receiver Point) and other wireless communication devices.

[1082] The above description is only the preferred embodiment of the present application, and is not intended to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

A first node for wireless communication, characterized in that Comprising: a first handler to predict a first connection failure; in response to the first connection failure being predicted, determine whether to initiate a first operation based on whether a first condition is satisfied, the first operation comprising RRC connection re-establishment; wherein the determining whether to initiate the first operation based on whether the first condition is satisfied comprises: initiating the first operation when the first condition is satisfied; wherein the first condition depends on a first time window, the first time window depending on at least one of a time at which the first connection failure is predicted and a predicted time of occurrence of the first connection failure. The first node according to claim 1, characterized in that Comprising: the first handler to receive at least a first reference signal; wherein the first condition depends on at least one of a measurement or an evaluation or a prediction for the at least first reference signal in the first time window. The first node according to claim 2, characterized in that Comprising: the first handler to receive a first message; wherein the first message indicates that the at least first reference signal is used for radio link monitoring. The first node according to claim 2 or 3, characterized in that, the predicting the first connection failure depends on the at least first reference signal. The first node according to claim 4, characterized in that the predicting the first connection failure depends on at least one of a number of predicted in-sync indications or a number of predicted out-of-sync indications within the first time window; the predicted in-sync indications or the predicted out-of-sync indications depend on the at least first reference signal. The first node according to any of claims 2 to 4, characterized in that the first condition depends on the prediction result for the at least first reference signal in the first time window; the first condition depending on at least one of a number of predicted in-sync indications or a number of predicted out-of-sync indications within the first time window; the predicted in-sync indications or the predicted out-of-sync indications depend on the at least first reference signal. The first node according to any of claims 1 to 5, characterized in that Comprising: the first handler to send first UE capability information; receive a second message; wherein the first UE capability information indicates that the first node supports connection failure prediction; the second message enables the connection failure prediction; the determining whether to initiate the first operation based on whether the first condition is satisfied depends on the connection failure prediction. The first node according to any of claims 1 to 6, characterized in that the first condition comprises that a length of the first time window is not greater than a first time length; the first time length is configured or the first time length is determined by the first node. The first node according to any one of claims 1 to 7, characterized in that the first condition comprises that a first timer is running; the first timer is used for connection failure detection; and / or, the first condition comprises that a first handover procedure is ongoing; the first connection failure is for a target cell of the first handover procedure. A method in a first node used for wireless communication, characterized by Comprising: a first handler to predict a first connection failure; in response to the first connection failure being predicted, determine whether to initiate a first operation based on whether a first condition is satisfied, the first operation comprising RRC connection re-establishment; wherein the determining whether to initiate the first operation based on whether the first condition is satisfied comprises: initiating the first operation when the first condition is satisfied; The first condition depends on a first time window, the first time window depends on at least one of a time when the first connection failure is predicted and a predicted occurrence time of the first connection failure. A second node for wireless communication, characterized in that Comprising: a second transmitter that transmits at least a first reference signal; wherein one receiver of the at least first reference signal predicts a first connection failure; as a response to the first connection failure being predicted, the one receiver determines whether to initiate a first operation according to whether a first condition is satisfied, the first operation comprising RRC connection reestablishment; wherein the determining whether to initiate the first operation according to whether the first condition is satisfied comprises: initiating the first operation when the first condition is satisfied; wherein the first condition depends on a first time window, the first time window depends on at least one of a time when the first connection failure is predicted and a predicted occurrence time of the first connection failure; the first condition depends on at least one of a measurement, an evaluation or a prediction for the at least first reference signal in the first time window. A method in a second node used for wireless communication, characterized by Comprising: a second transmitter that transmits at least a first reference signal; wherein one receiver of the at least first reference signal predicts a first connection failure; as a response to the first connection failure being predicted, the one receiver determines whether to initiate a first operation according to whether a first condition is satisfied, the first operation comprising RRC connection reestablishment; wherein the determining whether to initiate the first operation according to whether the first condition is satisfied comprises: initiating the first operation when the first condition is satisfied; wherein the first condition depends on a first time window, the first time window depends on at least one of a time when the first connection failure is predicted and a predicted occurrence time of the first connection failure; the first condition depends on at least one of a measurement, an evaluation or a prediction for the at least first reference signal in the first time window.

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