Switching method and device used for wireless communication

Abstract

The invention discloses a switching method and device used for wireless communication. The terminal receives the first signaling; wherein the first signaling indicates a first condition; sending the first measurement report; wherein the first measurement report comprises a measurement result of a second cell; receiving a first switching command; wherein the first switching command indicates the second cell and a first reference signal resource, and the first switching command is a first service cell; in response to the first handover command being received, whether handover to the second cell depends on whether the measurement quality for at least the first reference signal resource satisfies the first condition; if the measurement quality of at least the first reference signal resource meets the first condition, switching to the second cell; and if the measurement quality for at least the first reference signal resource does not satisfy the first condition, not switching to the second cell. The method provided by the invention is beneficial to avoiding switching failure.

Description

Technical Field

[0001] The present application relates to a transmission method and device in a wireless communication system, and in particular to a switching method and device. Background Art

[0002] With the continuous development of wireless communications, the requirements for mobility, transmission delay and system capacity are getting higher and higher. 3GPP (3rd Generation Partner Project) completed the standardization of L1 (Layer 1, Layer 1) / L2 (Layer 2, Layer 2) triggered mobility (L1 / L2 Triggered Mobility, LTM) through the "Further NR mobility enhancements" work item (Work Item, WI) in Release 18 (R18); for the intra-DU (Distributed Unit) scenario, the base station pre-configures the configuration information of the LTM candidate cells, the UE (User Equipment) periodically reports the measurement information, and the base station triggers the switching through the LTM cell switch command MAC (Medium Access Control) CE (Control Element), thereby reducing the switching delay.

[0003] To further enhance LTM, event-triggered L1 measurement reporting, conditional LTM, and inter-CU (Centralized Unit) LTM have become an important research direction for 3GPP Release 19. In addition, to further enhance mobility, mobility based on AI (Artificial Intelligence) / ML (Machine Learning) has become an important research direction for 3GPP Release 19 and future protocol versions. Summary of the invention

[0004] The inventors have found through research that the channel quality may change during the time interval between the UE sending the L1 measurement report and receiving the handover command, making the current measurement information inconsistent with the measurement information reported by the UE. If the channel quality of the target cell indicated by the handover command is too poor, it will lead to frequent handovers or even handover failures. This problem is more significant when event-triggered L1 measurement reports are introduced. Therefore, how to avoid the ping-pong effect and / or frequent handovers and / or handover failures is a problem that needs to be solved.

[0005] In view of the above problems, the present application provides a solution. In the description of the above problems, the NR system is used as an example. The present application is also applicable to scenarios such as LTE (Long-Term Evolution) or LTE-A (Long-Term Evolution Advanced) or future 5G+ or 6G systems, and achieves technical effects similar to those of the NR system. Furthermore, although the original intention of the present application is for the Uu air interface, the present application can also be used for the PC5 port to achieve technical effects similar to those of the Uu air interface. Furthermore, although the original intention of the present application is for 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 relay and the base station, and achieves technical effects similar to those in the terminal and base station scenario. Furthermore, although the original intention of the present application is for the terminal and base station scenario, the present application is also applicable to the IAB (Integrated Access and Backhaul) communication scenario, and achieves technical effects similar to those in the terminal and base station scenario. Furthermore, although the original intention of this application is for the terrestrial network (TN) scenario, this application is also applicable to the communication scenario of the non-terrestrial network (NTN), achieving similar technical effects in the TN scenario. In addition, the use of a unified solution for different scenarios also helps reduce hardware complexity and cost.

[0006] As an example, the interpretation of the terms in the present application refers to the definition of the TS38 series of specification protocols of 3GPP.

[0007] As an example, the interpretation of the terms in the present application refers to the definition of the TS37 series of specification protocols of 3GPP.

[0008] As an embodiment, the interpretation of the terms in the present application refers to the definition of the 6G series of specification protocols of 3GPP.

[0009] It should be noted that, in the absence of conflict, the embodiments and features in any node of the present application can be applied to any other node. In the absence of conflict, the embodiments and features in the embodiments of the present application can be arbitrarily combined with each other.

[0010] The present application discloses a method used in a terminal, characterized by comprising:

[0011] Receiving a first signaling; wherein the first signaling indicates a first condition;

[0012] Sending a first measurement report; wherein the first measurement report includes a measurement result of at least one cell;

[0013] receiving a first handover command; wherein the first handover command indicates a second cell and a first reference signal resource, and the first handover command is for a first serving cell;

[0014] Wherein, as a response to receiving the first handover command, whether to switch to the second cell depends on whether the measurement quality of at least the first reference signal resource satisfies the first condition; whether to switch to the second cell depends on whether the measurement quality of at least the first reference signal resource satisfies the first condition includes:

[0015] If the measured quality of at least the first reference signal resource satisfies the first condition, switching to the second cell;

[0016] If the measured quality of at least the first reference signal resource does not satisfy the first condition, switching to the second cell is not performed.

[0017] As an embodiment, the problem to be solved by the present application includes: how to avoid switching failure.

[0018] As an embodiment, the problem to be solved by the present application includes: how to avoid frequent switching.

[0019] As an embodiment, the problem to be solved by the present application includes: how to reduce the ping-pong effect.

[0020] As an embodiment, the problem to be solved by the present application includes: how to reduce the ping-pong effect and avoid handover failure.

[0021] As an embodiment, in the above method, switching to the second cell is performed only on the premise that the measurement quality of at least the first reference signal resource satisfies the first condition.

[0022] As an embodiment, in the above method, as long as the measurement quality of at least the first reference signal resource does not meet the first condition, switching to the second cell is not performed.

[0023] As an embodiment, the above method solves this problem by enhancing the conditions for switching to the second cell.

[0024] As an embodiment, the above method solves the problem by increasing the difficulty of switching to the second cell.

[0025] As an embodiment, the above method avoids switching failure.

[0026] As an embodiment, the above method avoids frequent switching.

[0027] As an embodiment, the above method reduces the ping-pong effect.

[0028] According to one aspect of the present application, it is characterized in that

[0029] The first measurement report is triggered when the measurement quality of at least one reference signal resource of the second cell satisfies the first condition.

[0030] As an embodiment, the problem to be solved by the present application includes: how to trigger the first measurement report; in the above method, the first measurement report is triggered when the measurement quality of at least one reference signal resource of the second cell satisfies the first condition, thereby solving the above problem.

[0031] As an embodiment, in the above method, when the measurement quality of at least one reference signal resource of the second cell satisfies the first condition to trigger the first measurement report, whether to switch to the second cell as a response to the first switching command being received depends on whether the first time interval satisfies the first time length.

[0032] As an embodiment, in the above method, when the measurement quality of at least one reference signal resource of the second cell satisfies the first condition to trigger the first measurement report, switching to the second cell is performed only on the premise that the measurement quality of at least the first reference signal resource satisfies the first condition.

[0033] As an embodiment, in the above method, when the measurement quality of at least one reference signal resource of the second cell satisfies the first condition to trigger the first measurement report, as long as the measurement quality of at least the first reference signal resource does not satisfy the first condition, switching to the second cell will not be performed.

[0034] As an embodiment, when the measurement quality of at least one reference signal resource of the second cell satisfies the first condition to trigger the first measurement report, the above method avoids handover failure.

[0035] As an embodiment, when the measurement quality of at least one reference signal resource of the second cell satisfies the first condition to trigger the first measurement report, the above method reduces the ping-pong effect.

[0036] According to one aspect of the present application, it is characterized in that

[0037] The first measurement report is triggered when the measurement quality of at least one reference signal resource of at least the second cell satisfies a second condition; wherein the first signaling configures the second condition; and the second condition is different from the first condition.

[0038] As an embodiment, the problem to be solved by the present application includes: how to trigger the first measurement report; in the above method, the first measurement report is triggered when the measurement quality of at least one reference signal resource of the second cell meets the second condition, thereby solving the above problem.

[0039] As an embodiment, in the above method, when the measurement quality of at least one reference signal resource of the second cell satisfies the second condition to trigger the first measurement report, whether to switch to the second cell as a response to the first switching command being received depends on whether the first time interval satisfies the first time length.

[0040] As an embodiment, in the above method, when the measurement quality of at least one reference signal resource of the second cell satisfies the second condition to trigger the first measurement report, switching to the second cell is performed only on the premise that the measurement quality of at least the first reference signal resource satisfies the first condition.

[0041] As an embodiment, in the above method, when the measurement quality of at least one reference signal resource of the second cell satisfies the second condition to trigger the first measurement report, as long as the measurement quality of at least the first reference signal resource does not satisfy the first condition, switching to the second cell is not performed.

[0042] As an embodiment, when the measurement quality of at least one reference signal resource of the second cell satisfies a second condition to trigger the first measurement report, the above method avoids handover failure.

[0043] As an embodiment, when the measurement quality of at least one reference signal resource of the second cell satisfies a second condition to trigger the first measurement report, the above method reduces the ping-pong effect.

[0044] According to one aspect of the present application, it is characterized in that

[0045] The first measurement report is triggered periodically.

[0046] As an embodiment, the problem to be solved by the present application includes: how to trigger the first measurement report; in the above method, the first measurement report is triggered periodically, thereby solving the above problem.

[0047] As an embodiment, in the above method, when the first measurement report is periodically triggered, as a response to the first switching command being received, whether to switch to the second cell depends on whether the first time interval meets the first time length.

[0048] As an embodiment, in the above method, when the first measurement report is triggered periodically, switching to the second cell is performed only on the premise that the measurement quality of at least the first reference signal resource satisfies the first condition.

[0049] As an embodiment, in the above method, when the first measurement report is periodically triggered, as long as the measurement quality of at least the first reference signal resource does not meet the first condition, switching to the second cell is not performed.

[0050] As an embodiment, when the first measurement report is triggered periodically, the above method avoids handover failure.

[0051] As an embodiment, when the first measurement report is triggered periodically, the above method reduces the ping-pong effect.

[0052] According to one aspect of the present application, it is characterized in that

[0053] Whether to switch to the second cell depends on whether a first time interval meets a first time length; wherein the first time interval depends on the first measurement report and the first switching command.

[0054] As an embodiment, the problem to be solved by the present application includes: how to further avoid switching failure.

[0055] As an embodiment, the problem to be solved by the present application includes: how to further avoid frequent switching.

[0056] As an embodiment, the problem to be solved by the present application includes: how to further reduce the ping-pong effect.

[0057] As an embodiment, the problem to be solved by the present application includes: how to further reduce the ping-pong effect and avoid handover failure.

[0058] As an embodiment, in the above method, switching to the second cell is performed only on the premise that at least the first time interval satisfies the first time length.

[0059] As an embodiment, in the above method, as long as the first time interval does not meet the first time length, switching to the second cell is not performed.

[0060] As an embodiment, the above method further enhances the conditions for switching to the second cell.

[0061] As an embodiment, the above method further increases the difficulty of switching to the second cell.

[0062] As an embodiment, the above method further avoids switching failure.

[0063] As an embodiment, the above method further avoids frequent switching.

[0064] As an embodiment, the above method further reduces the ping-pong effect.

[0065] According to one aspect of the present application, it is characterized in that

[0066] Whether to switch to the second cell depends on whether the measured quality of at least one reference signal resource of the first serving cell satisfies a third condition; wherein the first signaling configures the third condition.

[0067] As an embodiment, the problem to be solved by the present application includes: how to further avoid switching failure.

[0068] As an embodiment, the problem to be solved by the present application includes: how to further avoid frequent switching.

[0069] As an embodiment, the problem to be solved by the present application includes: how to further reduce the ping-pong effect.

[0070] As an embodiment, the problem to be solved by the present application includes: how to further reduce the ping-pong effect and avoid handover failure.

[0071] As an embodiment, in the above method, switching to the second cell is performed only on the premise that the measurement quality of at least one reference signal resource of the first serving cell does not satisfy a third condition.

[0072] As an embodiment, in the above method, as long as the measurement quality of at least one reference signal resource of the first serving cell satisfies the third condition, switching to the second cell is not performed.

[0073] As an embodiment, the above method further enhances the conditions for switching to the second cell.

[0074] As an embodiment, the above method further increases the difficulty of switching to the second cell.

[0075] As an embodiment, the above method further avoids switching failure.

[0076] As an embodiment, the above method further avoids frequent switching.

[0077] As an embodiment, the above method further reduces the ping-pong effect.

[0078] According to one aspect of the present application, it is characterized in that

[0079] The method comprises:

[0080] In response to receiving the first handover command, if the measured quality of the first reference signal resource does not satisfy the first condition, sending a first message;

[0081] The first message is sent on a serving cell of the terminal.

[0082] As an embodiment, if the measurement quality of at least the first reference signal resource does not meet the first condition, how to operate; the above method solves this problem by sending a first message on the serving cell of the terminal.

[0083] As an embodiment, the above method is beneficial for the base station maintaining the first serving cell to determine that the terminal has not switched to the second cell.

[0084] As an embodiment, the above method is beneficial to subsequent operations on the network side.

[0085] According to one aspect of the present application, it is characterized in that

[0086] receiving a second signaling;

[0087] Wherein, on the premise that the second signaling is received, whether to switch to the second cell depends on whether the measured quality of at least the first reference signal resource meets the first condition.

[0088] As an embodiment, the above method is based on network control.

[0089] As an embodiment, the above method prevents the base station from releasing resources of the first serving cell.

[0090] As an embodiment, the above method is beneficial for the terminal to continue to maintain the first serving cell when it does not switch to the second cell.

[0091] The present application discloses a method used in a base station, characterized by comprising:

[0092] Sending a first signaling; wherein the first signaling indicates a first condition;

[0093] receiving a first measurement report; wherein the first measurement report includes a measurement result of at least one cell;

[0094] receiving a first handover command; wherein the first handover command indicates a second cell and a first reference signal resource, and the first handover command is for a first serving cell;

[0095] Wherein, as a response to the first handover command being received, whether the recipient of the first handover command switches to the second cell depends on whether the measurement quality of at least the first reference signal resource satisfies the first condition; whether switching to the second cell depends on whether the measurement quality of at least the first reference signal resource satisfies the first condition includes:

[0096] If the measured quality of at least the first reference signal resource satisfies the first condition, switching to the second cell;

[0097] If the measured quality of at least the first reference signal resource does not satisfy the first condition, switching to the second cell is not performed.

[0098] According to one aspect of the present application, it is characterized in that

[0099] The first measurement report is triggered when the measurement quality of at least one reference signal resource of the second cell satisfies the first condition.

[0100] According to one aspect of the present application, it is characterized in that

[0101] The first measurement report is triggered when the measurement quality of at least one reference signal resource of at least the second cell satisfies a second condition; wherein the first signaling configures the second condition; and the second condition is different from the first condition.

[0102] According to one aspect of the present application, it is characterized in that

[0103] The first measurement report is triggered periodically.

[0104] According to one aspect of the present application, it is characterized in that

[0105] Whether to switch to the second cell depends on whether a first time interval meets a first time length; wherein the first time interval depends on the first measurement report and the first switching command.

[0106] According to one aspect of the present application, it is characterized in that

[0107] Whether to switch to the second cell depends on whether the measured quality of at least one reference signal resource of the first serving cell satisfies a third condition; wherein the first signaling configures the third condition.

[0108] According to one aspect of the present application, it is characterized in that

[0109] The method comprises:

[0110] receiving a first message;

[0111] Wherein, as a response to the first handover command being received, if the measured quality of the first reference signal resource does not meet the first condition, the receiver of the first handover command sends the first message on the serving cell of the receiver of the first handover command.

[0112] According to one aspect of the present application, it is characterized in that

[0113] The method comprises:

[0114] Sending a second signaling;

[0115] Wherein, on the premise that the second signaling is received, whether to switch to the second cell depends on whether the measured quality of at least the first reference signal resource meets the first condition.

[0116] The present application discloses a terminal, characterized in that it includes:

[0117] The terminal includes: one or more processors and a memory;

[0118] The memory is coupled to the one or more processors, and is used to store computer program codes, where the computer program codes include computer instructions. The one or more processors call the computer instructions to enable the terminal to execute the method used in the terminal.

[0119] The present application discloses a base station, characterized in that it includes:

[0120] The base station includes: one or more processors and a memory;

[0121] The memory is coupled to the one or more processors, and is used to store computer program codes, where the computer program codes include computer instructions, and the one or more processors call the computer instructions to enable the base station to perform the method used in the base station. BRIEF DESCRIPTION OF THE DRAWINGS

[0122] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0123] Figure 1 A flowchart showing the transmission of a first signaling, a first measurement report and a first switching command according to an embodiment of the present application is shown;

[0124] Figure 2 A schematic diagram of a network architecture according to an embodiment of the present application is shown;

[0125] Figure 3 A schematic diagram showing an embodiment of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application;

[0126] Figure 4 A schematic diagram showing a first communication device and a second communication device according to an embodiment of the present application is shown;

[0127] Figure 5 A wireless signal transmission flow chart according to an embodiment of the present application is shown;

[0128] Figure 6 A schematic diagram showing a triggering condition for a first measurement report according to an embodiment of the present application is shown;

[0129] Figure 7 A schematic diagram showing a triggering condition for a first measurement report according to another embodiment of the present application is shown;

[0130] Figure 8 A schematic diagram showing a triggering condition for a first measurement report according to yet another embodiment of the present application;

[0131] Fig. 9 A schematic diagram showing whether to switch to a second cell depends on whether a first time interval satisfies a first time length according to an embodiment of the present application;

[0132] Fig.10 A schematic diagram showing whether to switch to the second cell depends on whether the measurement quality of at least one reference signal resource of the first serving cell meets the third condition according to an embodiment of the present application;

[0133] Fig.11 A structural block diagram of a processing device used in a terminal according to an embodiment of the present application is shown;

[0134] Fig.12 A structural block diagram of a processing device used in a base station according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0135] The technical solution of the present application will be further described in detail below in conjunction with the accompanying drawings. It should be noted that, unless there is a conflict, the embodiments in the present application and the features in the embodiments can be combined with each other arbitrarily.

[0136] Example 1

[0137] Embodiment 1 illustrates a flowchart of the transmission of the first signaling, the first measurement report and the first switching command according to an embodiment of the present application, as shown in the attached Figure 1 Attached Figure 1 In the figure, each box represents a step. It should be emphasized that the order of the boxes in the figure does not represent the temporal relationship between the steps represented.

[0138] In embodiment 1, the terminal in the present application receives a first signaling in step 101; wherein the first signaling indicates a first condition; in step 102, a first measurement report is sent; wherein the first measurement report includes a measurement result of at least one cell; wherein the first measurement report includes a measurement result of at least one cell; in step 103, a first handover command is received; wherein the first handover command indicates a second cell and a first reference signal resource, and the first handover command is for a first serving cell; wherein, as a response to the first handover command being received, whether to switch to the second cell depends on whether the measurement quality of at least the first reference signal resource satisfies the first condition; whether to switch to the second cell depends on whether the measurement quality of at least the first reference signal resource satisfies the first condition, including:

[0139] If the measured quality of at least the first reference signal resource satisfies the first condition, switching to the second cell;

[0140] If the measured quality of at least the first reference signal resource does not satisfy the first condition, switching to the second cell is not performed.

[0141] As an embodiment, the first serving cell is a PCell (Primary Cell).

[0142] As an embodiment, the first service cell is a PSCell (Primary SCG (Secondary Cell Group) Cell).

[0143] As an embodiment, the first signaling includes configuration information of the second cell.

[0144] As an embodiment, the first signaling includes LTM configuration information of the second cell.

[0145] As an embodiment, the first signaling indicating the first condition includes: the first signaling configuring the first condition.

[0146] As an embodiment, the first signaling indicating the first condition includes: the first signaling activating the first condition.

[0147] As an embodiment, the first signaling is an RRC (Radio Resource Control) message.

[0148] As an embodiment, an RRC message in the first signaling configures the first condition.

[0149] As an embodiment, the first signaling includes an RRC message and a MAC CE.

[0150] As an embodiment, an RRC message in the first signaling configures the first condition, and a MAC CE in the first signaling activates the first condition.

[0151] As an embodiment, the first signaling indicates a reference signal resource of the second cell used for measurement.

[0152] As an embodiment, the first signaling indicates a reference signal resource of the first serving cell used for measurement.

[0153] As an embodiment, the reference signal resource used for measurement is an SSB (Synchronization Signal Block) resource.

[0154] As an embodiment, the reference signal resource used for measurement is a CSI (Channel State Information)-RS (Reference Signal) resource.

[0155] As an embodiment, the reference signal resource used for measurement is any one of SSB resources or CSI-RS resources.

[0156] As an embodiment, the first signaling indicating the first condition means that: the first signaling configures the first condition.

[0157] As an embodiment, the first signaling indicating the first condition means that: the first signaling activates the first condition.

[0158] As an embodiment, the first signaling indicating the first condition means that: the first signaling enables the first condition.

[0159] As an embodiment, the time-frequency resources occupied by the first measurement report are specific to the L1 measurement report triggered by an event.

[0160] As an embodiment, the time-frequency resources occupied by the first measurement report are configured by LTM-CSI-ReportConfig.

[0161] As an embodiment, the time-frequency resources occupied by the first measurement report are preconfigured.

[0162] As an embodiment, the time-frequency resources occupied by the first measurement report are based on base station scheduling.

[0163] As an embodiment, the time-frequency resources occupied by the first measurement report are based on dynamic scheduling.

[0164] As an embodiment, the first measurement report is sent via PUSCH (Physical uplink shared channel).

[0165] As an embodiment, the time-frequency resources occupied by the first measurement report are scheduled by DCI (DownLink Control Information).

[0166] As an embodiment, the time-frequency resources occupied by the first measurement report are based on CG (Configured Grant).

[0167] As an embodiment, the first measurement report is sent via PUCCH (PUCCH Physical Uplink Control Channel).

[0168] As an embodiment, the first measurement report is a UCI (Uplink Control Information).

[0169] As an embodiment, the first measurement report is sent via UCI multiplexed on the PUSCH.

[0170] As an embodiment, the first measurement report is an RRC message.

[0171] As an embodiment, the first measurement report is a MeasurementReport message.

[0172] As an embodiment, the first measurement report is a MAC CE.

[0173] As an embodiment, the at least one cell includes at least one candidate cell.

[0174] As an embodiment, the at least one cell includes at least one LTM candidate cell.

[0175] As an embodiment, the at least one cell is one cell.

[0176] As an embodiment, the at least one cell is a plurality of cells.

[0177] As an embodiment, the at least one cell does not include the second cell.

[0178] As an embodiment, the at least one cell includes the second cell.

[0179] As an embodiment, the at least one cell includes the first serving cell.

[0180] As an embodiment, the at least one cell does not include the first serving cell.

[0181] As an embodiment, the at least one cell includes the second cell and the first serving cell.

[0182] As an embodiment, the second cell is a candidate cell.

[0183] As an embodiment, the second cell is an LTM candidate cell.

[0184] As an embodiment, the measurement result of the second cell includes a measurement quality of at least one reference signal resource of the second cell.

[0185] As an embodiment, the measurement result of the second cell includes an index of at least one reference signal resource of the second cell.

[0186] As a sub-embodiment of the above embodiment, the index of the at least one reference signal resource of the second cell is sorted from small to large according to the index number.

[0187] As a sub-embodiment of the above embodiment, the index of the at least one reference signal resource of the second cell is sorted from low to high according to measurement quality.

[0188] As a sub-embodiment of the above embodiment, the index of the at least one reference signal resource of the second cell is sorted from high to low according to measurement quality.

[0189] As an embodiment, the measured quality of the at least one reference signal resource of the second cell is an RSRP.

[0190] As an embodiment, the measured quality of the at least one reference signal resource of the second cell is an RSRQ.

[0191] As an embodiment, the measured quality of the at least one reference signal resource of the second cell is at least one RSRP.

[0192] As an embodiment, the measured quality of the at least one reference signal resource of the second cell is at least one RSRQ.

[0193] As an embodiment, the measurement quality is RSRP (Reference Signal Received Power).

[0194] As an embodiment, the measured quality is L1-RSRP.

[0195] As an embodiment, the measured quality is SS-RSRP.

[0196] As an embodiment, the measurement quality is CSI-RSRP.

[0197] As an embodiment, the measurement quality is RSRQ (Reference Signal Received Quality).

[0198] As an embodiment, the measurement quality is SINR (Signal to Interference plus Noise Ratio).

[0199] As an embodiment, the measurement quality is unfiltered.

[0200] As an embodiment, the measurement quality is filtered.

[0201] As an embodiment, the measurement quality is L1 filtered.

[0202] As an embodiment, the measurement quality is L3 filtered.

[0203] As an embodiment, the first switching command is an RRC message.

[0204] As an embodiment, the first switching command is a MAC CE.

[0205] As an embodiment, the first switching command is an LTM Cell Switch Command MAC CE.

[0206] As an embodiment, the first switching command is a DCI.

[0207] As an embodiment, the first switching command indicates a first identifier of the second cell; wherein the first signaling configures the first identifier of the second cell.

[0208] As an embodiment, the first switching command indicates a first identifier of the second cell; wherein a signaling other than the first signaling configures the first identifier of the second cell.

[0209] As an embodiment, the first switching command includes a Target Configuration ID field, and the Target Configuration ID field indicates the first identifier of the second cell.

[0210] As an embodiment, the Target Configuration ID field is associated with the first identifier of the second cell.

[0211] As an embodiment, the Target Configuration ID field is set to the first identifier of the second cell.

[0212] As an embodiment, the Target Configuration ID field is set to the difference between the first identifier of the second cell and 1.

[0213] As an embodiment, the first identifier of the second cell indicates the second cell.

[0214] As an embodiment, the first identifier of the second cell is the ltm-CandidateId of the second cell.

[0215] As an embodiment, the first identifier of the second cell is the PCI of the second cell.

[0216] As an embodiment, the first switching command includes a field, and the field indicates the first reference signal resource.

[0217] As an embodiment, the first switching command includes a field, and the field indicates an index of the first reference signal resource.

[0218] As an embodiment, the first switching command includes a field, wherein the field indicates a first TCI (Transmission Configuration Indicator) state, and the first TCI state indicates the first reference signal resource.

[0219] As an embodiment, the first switching command includes a TCI state ID field, and the TCIstate ID field indicates the first TCI state.

[0220] As an embodiment, the first switching command includes a UL TCI state ID field, and the UL TCI state ID field indicates the first TCI state.

[0221] As an embodiment, the first TCI state is indexed by a TCI-StateId.

[0222] As an embodiment, the first TCI state is indexed by a TCI-UL-StateId.

[0223] As an embodiment, the first TCI state is a DL TCI state.

[0224] As an embodiment, the first TCI state is a UL TCI state.

[0225] As an embodiment, the first TCI state is a joint TCI state.

[0226] As an embodiment, the first signaling configures the first TCI state.

[0227] As an embodiment, the first signaling includes a TCI-State, and the one TCI-State configures the first TCI state.

[0228] As an embodiment, the first signaling includes a TCI-State, wherein the TCI-State indicates the first TCI state; the TCI-State includes a referenceSignal, wherein the referenceSignal indicates the first reference signal resource.

[0229] As an embodiment, the first signaling includes a CandidateTCI-State, wherein the CandidateTCI-State indicates the first TCI state; the CandidateTCI-State includes a referenceSignal, wherein the referenceSignal indicates the first reference signal resource.

[0230] As an embodiment, the first signaling includes a CandidateTCI-UL-State, wherein the CandidateTCI-UL-State indicates the first TCI state; the CandidateTCI-UL-State includes a referenceSignal, wherein the referenceSignal indicates the first reference signal resource.

[0231] As an embodiment, the first signaling includes a TCI-UL-State, wherein the TCI-UL-State indicates the first TCI state; the TCI-UL-State includes a referenceSignal, wherein the referenceSignal indicates the first reference signal resource.

[0232] As an embodiment, the switching to the second cell includes: starting synchronization to a downlink of the second cell.

[0233] As an embodiment, the switching to the second cell includes: applying the BCCH configuration of the second cell.

[0234] As an embodiment, the switching to the second cell includes: obtaining the MIB of the second cell.

[0235] As an embodiment, the switching to the second cell includes: releasing the configuration of the first serving cell.

[0236] As an embodiment, the switching to the second cell includes: leaving the first serving cell.

[0237] As an embodiment, the switching to the second cell includes: applying a reconfigurationWithSync, and the reconfigurationWithSync includes an identifier of the second cell.

[0238] As an embodiment, the switching to the second cell includes: indicating to a higher layer that the LTM cellswitch process is triggered.

[0239] As an embodiment, the switching to the second cell includes: applying an RRCReconfiguration message in an ltm-CandidateConfig; the ltm-CandidateConfig includes an identifier of the second cell.

[0240] As an embodiment, at least the first reference signal resource is a reference signal resource.

[0241] As an embodiment, at least the first reference signal resource is a plurality of reference signal resources.

[0242] As an embodiment, at least the first reference signal resource is the same as the reference signal resource of the second cell that triggers the first measurement report.

[0243] As an embodiment, at least the first reference signal resource is different from the reference signal resource of the second cell that triggers the first measurement report.

[0244] As an embodiment, the measurement quality for at least the first reference signal resource is L1 filtered.

[0245] As an embodiment, the filter coefficients of the L1 filter are preconfigured.

[0246] As an embodiment, the filter coefficients of the L1 filter are predefined.

[0247] As an embodiment, the measurement quality for at least the first reference signal resource is L3 filtered.

[0248] As an embodiment, the filter coefficients of the L3 filter are preconfigured.

[0249] As an embodiment, the filter coefficients of the L3 filter are predefined.

[0250] As an embodiment, the measured quality for at least the first reference signal resource is not filtered.

[0251] As an embodiment, the measurement quality for at least the first reference signal resource is at least one measurement value of at least the first reference signal resource.

[0252] As an embodiment, the measurement quality for at least the first reference signal resource is a value obtained by a first operation of at least one measurement value of at least the first reference signal resource.

[0253] As an embodiment, the measured value is the RSRP of a path of a reference signal.

[0254] As an embodiment, the measured value is the RSRP of the strongest path of a reference signal.

[0255] As an embodiment, the measured value is an average RSRP of multiple paths of a reference signal.

[0256] As an embodiment, the measurement value is RSRP.

[0257] As an embodiment, the measured value is an interference level.

[0258] As an embodiment, the measured value is received power.

[0259] As an embodiment, the measured value is a received power level.

[0260] As an embodiment, the measured value is of L1.

[0261] As an embodiment, the measured value is a sampled value.

[0262] As an embodiment, the measured value is an average of multiple sample values.

[0263] As an embodiment, the first operation includes averaging.

[0264] As an embodiment, the average is a weighted average.

[0265] As an embodiment, the average is an arithmetic average.

[0266] As an embodiment, the first operation includes taking a maximum value.

[0267] As an embodiment, the maximum value is a minimum value.

[0268] As an embodiment, the extreme value is a maximum value.

[0269] As an embodiment, the first operation includes filtering.

[0270] As an embodiment, the filtering is L1 filtering.

[0271] As an embodiment, the filtering is L3 filtering.

[0272] As an embodiment, for the first serving cell and the second cell, the filtering coefficients used in the first operation are the same.

[0273] As an embodiment, for the first serving cell and the second cell, the filtering coefficients used in the first operation are different.

[0274] As an embodiment, for the first serving cell and the second cell, the filter coefficients used in the first operation are configured independently.

[0275] As an embodiment, the first operation is averaging.

[0276] As an embodiment, the first operation is to obtain the maximum value.

[0277] As an embodiment, the first operation is filtering.

[0278] As an embodiment, whether the measurement quality of at least the first reference signal resource satisfies / does not satisfy the first condition means that the measurement quality of at least the first reference signal resource is better than / worse than the first threshold.

[0279] As an embodiment, whether the measurement quality of at least the first reference signal resource satisfies / does not satisfy the first condition means that: the sum of the measurement quality of at least the first reference signal resource and the first offset is better than / worse than the first threshold; the first condition includes the first threshold and the first offset.

[0280] As an embodiment, the first threshold is a measurement quality of at least one reference signal resource of the first serving cell.

[0281] As an embodiment, the first threshold is the sum of the measurement quality of at least one reference signal resource of the first serving cell and a third offset.

[0282] As an embodiment, the measurement quality of at least one reference signal resource of the first serving cell is at least one measurement value of at least one reference signal resource of the first serving cell.

[0283] As an embodiment, the measurement quality of at least one reference signal resource of the first serving cell is a value obtained by a first operation of at least one measurement value of at least one reference signal resource of the first serving cell.

[0284] As an embodiment, the first threshold is configurable.

[0285] As an embodiment, the first condition includes the first threshold.

[0286] As an embodiment, the measurement quality of at least the first reference signal resource being better / worse than a first threshold means that each measurement value of at least one measurement value of at least the first reference signal resource is better / worse than the first threshold.

[0287] As an embodiment, the measurement quality of at least the first reference signal resource being better / worse than a first threshold means that at least one of the at least one measurement value of at least the first reference signal resource is better / worse than the first threshold.

[0288] As an embodiment, the measurement quality of at least the first reference signal resource is better / worse than a first threshold value means that a value obtained by a first operation of at least one measurement value of at least the first reference signal resource is better / worse than the first threshold value.

[0289] As an embodiment, the measurement quality of at least the first reference signal resource is better / worse than a first threshold means that the sum of each measurement value of at least one measurement value of at least the first reference signal resource and the first offset is better / worse than the first threshold.

[0290] As an embodiment, the measurement quality of at least the first reference signal resource is better / worse than a first threshold value means that the sum of at least one of the at least one measurement value of at least the first reference signal resource and the first offset is better / worse than the first threshold value.

[0291] As an embodiment, the measurement quality of at least the first reference signal resource is better / worse than a first threshold value means that the sum of a value obtained by a first operation of at least one measurement value of at least the first reference signal resource and a first offset is better / worse than the first threshold value.

[0292] As an embodiment, the better than includes greater than, and the worse than includes less than.

[0293] As a sub-embodiment of the above embodiment, the better is greater than or equal to, and the difference is less than.

[0294] As a sub-embodiment of the above embodiment, the better is greater than , and the difference is less than or equal to .

[0295] As a sub-embodiment of the above embodiment, the better is greater than , and the worse is less than .

[0296] As an embodiment, the better than includes less than, and the worse than includes greater than.

[0297] As a sub-embodiment of the above embodiment, the better is less than or equal to, and the difference is greater than.

[0298] As a sub-embodiment of the above embodiment, the better is less than, and the difference is greater than or equal to.

[0299] As a sub-embodiment of the above embodiment, the better is less than , and the worse is greater than .

[0300] As an embodiment, the better than includes greater than, and the worse than includes less than; and the measured quality is RSRP.

[0301] As an embodiment, the better than includes less than, and the worse than includes greater than; and the measured quality is BLER.

[0302] As an embodiment, the first signaling indicates the first threshold.

[0303] As an embodiment, the first threshold is specific to the second cell.

[0304] As an embodiment, the first threshold is specific to the first condition.

[0305] As an embodiment, the first threshold is specific to the triggering event to which the first condition belongs.

[0306] As an embodiment, the first signaling indicates the first offset.

[0307] As an embodiment, the first offset is configured by the base station.

[0308] As an embodiment, the first offset is preconfigured.

[0309] As an embodiment, the first offset is an offset.

[0310] As an embodiment, the first offset is a plurality of offsets.

[0311] As an embodiment, the first offset is specific to the second cell.

[0312] As an embodiment, at least part of the first offset is specific to the second cell.

[0313] As an embodiment, the first offset is specific to the first condition.

[0314] As an embodiment, the first offset is specific to the triggering event to which the first condition belongs.

[0315] As an embodiment, the first offset is for Event LTM3.

[0316] As an embodiment, the first offset is for Event LTM4.

[0317] As an embodiment, the first offset is for Event LTM5.

[0318] As an embodiment, the first offset includes a Hysteresis.

[0319] As an embodiment, the first offset includes an a3-Offset.

[0320] As an embodiment, the first offset includes an a4-Offset.

[0321] As an embodiment, the first offset includes an a5-Offset.

[0322] As an embodiment, the first offset includes an Ltm-Offset.

[0323] As an embodiment, the first signaling indicates the third offset.

[0324] As an embodiment, the third offset is configured by the base station.

[0325] As an embodiment, the third offset is preconfigured.

[0326] As an embodiment, the third offset is an offset.

[0327] As an embodiment, the third offset is a plurality of offsets.

[0328] As an embodiment, the third offset is specific to the first serving cell.

[0329] As an embodiment, at least part of the third offset is specific to the first serving cell.

[0330] As an embodiment, the third offset is specific to the second cell.

[0331] As an embodiment, at least part of the third offset is specific to the second cell.

[0332] As an embodiment, the third offset is specific to the third condition.

[0333] As an embodiment, the third offset is specific to the triggering event to which the third condition belongs.

[0334] As an embodiment, the third offset is for Event LTM3.

[0335] As an embodiment, the third offset is for Event LTM4.

[0336] As an embodiment, the third offset is for Event LTM5.

[0337] As an embodiment, the third offset includes a Hysteresis.

[0338] As an embodiment, the third offset includes an a3-Offset.

[0339] As an embodiment, the third offset includes an a4-Offset.

[0340] As an embodiment, the third offset includes an a5-Offset.

[0341] As an embodiment, the third offset includes an Ltm-Offset.

[0342] As an embodiment, the "whether to switch to the second cell depends on whether the measurement quality of at least the first reference signal resource satisfies the first condition, including: if the measurement quality of at least the first reference signal resource satisfies the first condition, switch to the second cell; if the measurement quality of at least the first reference signal resource does not satisfy the first condition, do not switch to the second cell" means: when the measurement quality of at least the first reference signal resource satisfies the first condition, switch to the second cell.

[0343] As an embodiment, "if the measurement quality of at least the first reference signal resource satisfies the first condition, switch to the second cell" means: if the measurement quality of at least the first reference signal resource satisfies the first condition, switch to the second cell.

[0344] As an embodiment, the above method enables not switching to the second cell only when the second cell is worse.

[0345] As an embodiment, the above method is simple to implement.

[0346] As an embodiment, the above method effectively avoids switching failure.

[0347] As an embodiment, "if the measurement quality of at least the first reference signal resource satisfies the first condition, switch to the second cell" means: if the measurement quality of at least the first reference signal resource satisfies the first condition and at least another condition is met, switch to the second cell; wherein, the at least another condition may include at least one of the time or the measurement result or location or prediction result of the first service cell.

[0348] As an embodiment, the above method takes into account the influence of factors other than the poor performance of the second cell.

[0349] As an embodiment, the above method further reduces the switching frequency.

[0350] As an embodiment, the reference signal resource in the present application is SSB.

[0351] As an embodiment, the reference signal resource in the present application is CSI-RS.

[0352] As an embodiment, the reference signal resource in the present application is any one of SSB or CSI-RS.

[0353] Example 2

[0354] Embodiment 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in the attached Figure 2 Attached Figure 2The network architecture 200 is described. 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 that 3GPP will continue to evolve in the future; the network architecture 200 may be called 5GS (5G System) / EPS (Evolved Packet System), or the network architecture 200 may be called 6GS (6G System); the network architecture 200 includes at least one of UE (User Equipment) 201, RAN (Radio Access Network) 202, core network 210, HSS (Home Subscriber Server) / UDM (Unified Data Management) 220 and Internet service 230. The network architecture 200 can be interconnected with other access networks, but these entities / interfaces are not shown for simplicity. As shown, the network architecture 200 provides packet switching services, but it will be readily understood by those skilled in the art that the various concepts presented throughout this application can be extended to networks or other cellular networks that provide circuit switching 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 other nodes 204 via an Xn interface (e.g., backhaul) / X2 interface. The node 203 may 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 (transmitting and receiving node) or some other suitable term. The core network 210 is a 5GC (5G Core Network, 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 UE 201 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop computer, a personal digital assistant (PDA), a satellite radio, non-terrestrial base station communications, satellite mobile communications, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., an MP3 player), a camera, a game console, a drone, an aircraft, a narrowband Internet of Things device, a machine type communication device, a land vehicle, an automobile, a wearable device, or any other similarly functional device.Those skilled in the art may also refer to UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable term. Node 203 is connected to the core network 210 via an S1 / NG interface. The core network 210 includes MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MME / AMF / SMF 214, S-GW (Service Gateway) / UPF (User Plane Function) 212, and P-GW (Packet Data Network Gateway) / UPF 213. MME / AMF / SMF 211 is a control node that processes signaling between UE201 and the core network 210. In general, MME / AMF / SMF211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through S-GW / UPF212, which is itself connected to P-GW / UPF213. P-GW provides UE IP address allocation and other functions. P-GW / UPF213 is connected to Internet Service 230. Internet Service 230 includes operator-corresponding Internet Protocol services, which may specifically include Internet, Intranet, IMS (IP Multimedia Subsystem) and packet-switched streaming services.

[0355] As an embodiment, the UE201 corresponds to the terminal in this application.

[0356] As an embodiment, the UE201 is the terminal in this application.

[0357] As an embodiment, the UE 201 is a user equipment (User Equipment, UE).

[0358] As an embodiment, the UE201 is a base station device (BaseStation, BS).

[0359] As an embodiment, the UE 201 is a relay device.

[0360] As an embodiment, the UE201 is a gateway device.

[0361] As an embodiment, the node 203 corresponds to the base station in this application.

[0362] As an embodiment, the node 203 is the base station in this application.

[0363] As an embodiment, the node 203 is a base station device.

[0364] As an embodiment, the node 203 is a relay device.

[0365] As an embodiment, the node 203 is a gateway device.

[0366] As an embodiment, the user equipment supports 3GPP Release 19.

[0367] As an embodiment, the user equipment supports 5G.

[0368] As an embodiment, the user equipment supports 6G.

[0369] As an embodiment, the user equipment supports Radio Link Monitoring (RLM).

[0370] As an embodiment, the user equipment supports switching.

[0371] As an embodiment, the user equipment supports CHO.

[0372] As an embodiment, the user equipment supports CPC.

[0373] As an embodiment, the user equipment supports LTM.

[0374] As an embodiment, the user equipment supports intra-CU LTM.

[0375] As an embodiment, the user equipment supports inter-CU LTM.

[0376] As an embodiment, the user equipment supports conditional LTM.

[0377] As an embodiment, the user equipment supports event-triggered measurement reporting for LTM.

[0378] As an embodiment, the user equipment supports transmission of a non-terrestrial network (NTN).

[0379] As an embodiment, the user equipment supports transmission of a terrestrial network (Terrestrial Network).

[0380] As an embodiment, the user equipment supports dual connection (DC) transmission.

[0381] As an embodiment, the user equipment includes a device supporting low-latency and high-reliability transmission.

[0382] As an embodiment, the user device may be a mobile terminal, which may be a mobile phone or an iPad or a computer or a watch or a ring; the user device may also be a wearable device, which may be a watch or a ring or a shoe or a hat or clothing or glasses, etc.; the user device may also be an aircraft; the user device may also be a vehicle-mounted terminal; the user device may also be a ship-mounted terminal; the user device may also be an Internet of Things terminal; the user device may also be an industrial Internet of Things terminal; the user device may also be a test device; the user device may also be a signaling tester; the user device may also be an IAB (Integrated Access and Backhaul)-MT.

[0383] As an embodiment, the base station device supports transmission in a non-terrestrial network.

[0384] As an embodiment, the base station device supports transmission of a terrestrial network.

[0385] As an embodiment, the base station equipment includes a base transceiver station (Base Transceiver Station, BTS).

[0386] As an embodiment, the base station device includes a Node B (NodeB, NB); the Node B may be a gNB or an eNB or an ng-eNB or an en-gNB; the base station device may include a CU (Centralized Unit); the base station device may also include a DU (Distributed Unit); the base station device may also include a TRP (Transmitter Receiver Point).

[0387] As an embodiment, the base station device may be a macro cellular (Marco Cellular) base station or a micro cell (Micro Cell) base station or a pico cell (Pico Cell) base station or a home base station (Femtocell); the base station device may also be a flight platform device or a satellite device; the base station device may also be a test device or a signaling tester; the base station device may also be a gateway device; the base station device may also be an IAB device; the IAB device includes at least one of IAB-node or IAB-donor or IAB-donor-CU or IAB-donor-DU or IAB-DU or IAB-MT.

[0388] As an embodiment, the relay device may include a relay; the relay may be an L3 relay or an L2 relay; the relay device may also include a router; the relay device may also include a switch; the relay device may also include a gateway device; the relay device may also include at least part of a user device; the relay device may also include at least part of a base station device.

[0389] Example 3

[0390] Embodiment 3 shows a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to the present application, as shown in the attached Figure 3 shown. Figure 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, Figure 3The radio protocol architecture for the control plane 300 is shown in three layers: Layer 1, Layer 2, and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to as PHY 301 in this article. Layer 2 (L2 layer) 305 is above PHY 301 and includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by encrypting data packets, and provides inter-zone mobility support. 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 (Hybrid Automatic Repeat Request). The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in a 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 of the user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer). In the user plane 350, the radio protocol architecture is 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. The L2 layer 355 in the user plane 350 also includes a SDAP (Service Data Adaptation Protocol) sublayer 356. The SDAP sublayer 356 is responsible for mapping between QoS flows and data radio bearers (DRBs) to support service diversity.

[0391] As an example, Figure 3 The wireless protocol architecture in is applicable to the terminal described in this application.

[0392] As an example, Figure 3The wireless protocol architecture in is applicable to the base station described in this application.

[0393] As an embodiment, the first signaling in the present application is generated in the RRC306.

[0394] As an embodiment, the first signaling in the present application is generated by the MAC302 or MAC352.

[0395] As an embodiment, the first signaling in the present application is generated in the PHY301 or PHY351.

[0396] As an embodiment, the second signaling in the present application is generated in the RRC306.

[0397] As an embodiment, the second signaling in the present application is generated by the MAC302 or MAC352.

[0398] As an embodiment, the second signaling in the present application is generated in the PHY301 or PHY351.

[0399] As an embodiment, the first measurement report in the present application is generated in the RRC306.

[0400] As an embodiment, the first measurement report in the present application is generated by the MAC302 or MAC352.

[0401] As an embodiment, the first measurement report in the present application is generated by the PHY301 or PHY351.

[0402] As an embodiment, the first switching command in the present application is generated in the PHY301 or PHY351.

[0403] As an embodiment, the first switching command in the present application is generated by the MAC302 or MAC352.

[0404] As an embodiment, the first switching command in the present application is generated in the RRC306.

[0405] As an embodiment, the first message in the present application is generated in the RRC306.

[0406] As an embodiment, the first message in the present application is generated by the MAC302 or MAC352.

[0407] As an embodiment, the first message in the present application is generated by the PHY301 or PHY351.

[0408] Example 4

[0409] Embodiment 4 shows a schematic diagram of a first communication device and a second communication device according to the present application, as shown in the attached figure. Figure 4 shown. 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.

[0410] The first communication device 450 includes 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.

[0411] The second communication device 410 includes 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 .

[0412] In transmission from the second communication device 410 to the first communication device 450, at the second communication device 410, upper layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements the functionality of the L2 layer. In transmission from the second communication device 410 to the first communication device 450, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the first communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for retransmission of lost packets and signaling to the first communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). The transmit processor 416 implements coding and interleaving to facilitate forward error correction (FEC) at the second communication device 410, as well as mapping of signal constellations 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 multi-antenna transmit processor 471 performs digital spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing on the coded and modulated symbols to generate one or more spatial streams. The transmit processor 416 then maps each spatial stream to a subcarrier, multiplexes it with a reference signal (e.g., a pilot) in the time domain and / or frequency domain, and then uses an inverse fast Fourier transform (IFFT) to generate a physical channel carrying a time-domain multi-carrier symbol stream. The multi-antenna transmit processor 471 then performs a transmit analog precoding / beamforming operation on the time-domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream, and then provides it to a different antenna 420.

[0413] In the transmission from the second communication device 410 to the first communication device 450, at the first communication device 450, each receiver 454 receives a signal through its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the RF carrier and converts the RF stream into a baseband multi-carrier symbol stream and provides it to the receiving processor 456. The receiving processor 456 and the multi-antenna receiving processor 458 implement various signal processing functions of the L1 layer. The multi-antenna receiving processor 458 performs a receiving analog precoding / beamforming operation on the baseband multi-carrier symbol stream from the receiver 454. The receiving processor 456 uses a fast Fourier transform (FFT) to convert the baseband multi-carrier symbol stream after the receiving analog precoding / beamforming operation from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receiving processor 456, wherein the reference signal will be used for channel estimation, and the data signal is recovered after multi-antenna detection in the multi-antenna receiving processor 458 to any spatial stream destined for the first communication device 450. The symbols on each spatial stream are demodulated and recovered in the receiving processor 456, and soft decisions are generated. The receiving processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the second communication device 410 on the physical channel. The upper layer data and control signals are then provided to the controller / processor 459. The controller / processor 459 implements the functions of the L2 layer. The controller / processor 459 may be associated with a memory 460 that stores program codes and data. The memory 460 may be referred to as a computer-readable medium. In the transmission from the second communication device 410 to the first communication device 450, the controller / processor 459 provides multiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover the 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 may also be provided to L3 for L3 processing.

[0414] In the transmission from the first communication device 450 to the second communication device 410, at the first communication device 450, a data source 467 is used to provide upper layer data packets to the controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmission 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, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocation, and implements L2 layer functions for user plane and control plane. The controller / processor 459 is also responsible for the retransmission of lost packets and signaling to the second communication device 410. The transmit processor 468 performs modulation mapping and channel coding processing, and the multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing. Then, the transmit processor 468 modulates the generated spatial stream into a multi-carrier / single-carrier symbol stream, which is then provided to different antennas 452 via the transmitter 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 symbol stream, and then provides it to the antenna 452.

[0415] In the transmission from the first communication device 450 to the second communication device 410, the function at the second communication device 410 is similar to the reception function at the first communication device 450 described in the transmission from the second communication device 410 to the first communication device 450. Each receiver 418 receives a radio frequency signal through its corresponding antenna 420, converts the received radio frequency signal into a baseband signal, and provides the baseband signal to the multi-antenna reception processor 472 and the reception processor 470. The reception processor 470 and the multi-antenna reception processor 472 jointly implement the functions of the L1 layer. The controller / processor 475 implements the L2 layer functions. The controller / processor 475 can be associated with a memory 476 storing 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 multiplexing between transport and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover the upper layer data packets from the UE 450. Upper layer packets from controller / processor 475 may be provided to the core network.

[0416] As an embodiment, the first communication device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor, and the first communication device 450 at least: receives a first signaling; wherein the first signaling indicates a first condition; sends a first measurement report; wherein the first measurement report includes a measurement result of at least one cell; receives a first switching command; wherein the first switching command indicates a second cell and a first reference signal resource, and the first switching command is for a first serving cell; wherein, as a response to the first switching command being received, whether to switch to the second cell depends on whether the measurement quality of at least the first reference signal resource satisfies the first condition; whether to switch to the second cell depends on whether the measurement quality of at least the first reference signal resource satisfies the first condition, including: if the measurement quality of at least the first reference signal resource satisfies the first condition, switch to the second cell; if the measurement quality of at least the first reference signal resource does not satisfy the first condition, do not switch to the second cell.

[0417] As an embodiment, the first communication device 450 includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates an action when executed by at least one processor, and the action includes: receiving a first signaling; wherein the first signaling indicates a first condition; sending a first measurement report; wherein the first measurement report includes the measurement result of at least one cell; receiving a first switching command; wherein the first switching command indicates a second cell and a first reference signal resource, and the first switching command is for a first service cell; wherein, as a response to the first switching command being received, whether to switch to the second cell depends on whether the measurement quality of at least the first reference signal resource satisfies the first condition; whether to switch to the second cell depends on whether the measurement quality of at least the first reference signal resource satisfies the first condition, including: if the measurement quality of at least the first reference signal resource satisfies the first condition, switch to the second cell; if the measurement quality of at least the first reference signal resource does not satisfy the first condition, do not switch to the second cell.

[0418] As an embodiment, the second communication device 410 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The second communication device 410 at least: sends a first signaling; wherein the first signaling indicates a first condition; receives a first measurement report; wherein the first measurement report includes a measurement result of at least one cell; receives a first handover command; wherein the first handover command indicates a second cell and a first reference signal resource, and the first handover command is for a first serving cell; wherein, as a response to the first handover command being received, whether the recipient of the first handover command switches to the second cell depends on whether the measurement quality of at least the first reference signal resource satisfies the first condition; whether switching to the second cell depends on whether the measurement quality of at least the first reference signal resource satisfies the first condition includes: if the measurement quality of at least the first reference signal resource satisfies the first condition, switching to the second cell; if the measurement quality of at least the first reference signal resource does not satisfy the first condition, not switching to the second cell.

[0419] As an embodiment, the second communication device 410 includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates an action when executed by at least one processor, and the action includes: sending a first signaling; wherein the first signaling indicates a first condition; receiving a first measurement report; wherein the first measurement report includes a measurement result of at least one cell; receiving a first switching command; wherein the first switching command indicates a second cell and a first reference signal resource, and the first switching command is for a first service cell; wherein, as a response to the first switching command being received, whether the recipient of the first switching command switches to the second cell depends on whether the measurement quality of at least the first reference signal resource satisfies the first condition; whether switching to the second cell depends on whether the measurement quality of at least the first reference signal resource satisfies the first condition, including: if the measurement quality of at least the first reference signal resource satisfies the first condition, switching to the second cell; if the measurement quality of at least the first reference signal resource does not satisfy the first condition, not switching to the second cell.

[0420] As an embodiment, at least one of the antenna 452, the receiver 454, the receiving processor 456, and the controller / processor 459 is used to receive the first signaling.

[0421] As an embodiment, at least one of the antenna 420, the transmitter 418, the transmit processor 416, and the controller / processor 475 is used to send the first signaling.

[0422] As an embodiment, at least one of the antenna 452, the receiver 454, the receiving processor 456, and the controller / processor 459 is used to receive the second signaling.

[0423] As an embodiment, at least one of the antenna 420, the transmitter 418, the transmit processor 416, and the controller / processor 475 is used to send the second signaling.

[0424] As an embodiment, at least one of the antenna 452 , the receiver 454 , the receiving processor 456 , and the controller / processor 459 is used to receive a first switching command.

[0425] As an embodiment, at least one of the antenna 420, the transmitter 418, the transmit processor 416, and the controller / processor 475 is used to send a first switching command.

[0426] As an embodiment, at least one of the antenna 452, the transmitter 454, the transmit processor 468, and the controller / processor 459 is used to send a first measurement report.

[0427] As an embodiment, at least one of the antenna 420, the receiver 418, the receiving processor 470, and the controller / processor 475 is used to receive a first measurement report.

[0428] As an embodiment, at least one of the antenna 452, the transmitter 454, the transmit processor 468, and the controller / processor 459 is used to send a first message.

[0429] As an embodiment, at least one of the antenna 420, the receiver 418, the receiving processor 470, and the controller / processor 475 is used to receive a first message.

[0430] As an embodiment, the first communication device 450 corresponds to the terminal in this application.

[0431] As an embodiment, the first communication device 450 is a terminal in this application.

[0432] As an embodiment, the second communication device 410 corresponds to the base station in this application.

[0433] As an embodiment, the second communication device 410 is a base station in this application.

[0434] As an embodiment, the first communication device 450 is a user equipment.

[0435] As an embodiment, the first communication device 450 is a base station device.

[0436] As an embodiment, the first communication device 450 is a relay device.

[0437] As an embodiment, the second communication device 410 is a user equipment.

[0438] As an embodiment, the second communication device 410 is a base station device.

[0439] As an embodiment, the second communication device 410 is a relay device.

[0440] Example 5

[0441] Embodiment 5 illustrates a wireless signal transmission flow chart according to an embodiment of the present application, as shown in the attached Figure 5 It is particularly noted that the order in this example does not limit the signal transmission order and implementation order in this application.

[0442] for Terminal U01 ,

[0443] In step S5101, a first signaling is received; wherein the first signaling indicates a first condition;

[0444] In step S5102, receiving a second signaling;

[0445] In step S5103, a first measurement report is sent; wherein the first measurement report includes a measurement result of at least one cell;

[0446] In step S5104, a first handover command is received; wherein the first handover command indicates a second cell and a first reference signal resource, and the first handover command is for a first serving cell;

[0447] In step S5105, as a response to the first handover command being received, determining whether the measurement quality of at least the first reference signal resource satisfies the first condition; if the measurement quality of at least the first reference signal resource satisfies the first condition, executing step S5106(a); otherwise, not executing step S5106(a);

[0448] In step S5106(a), switching to the second cell;

[0449] In step S5106 (b), a first message is sent; wherein the first message is sent on a serving cell of the terminal.

[0450] for Base Station N02 ,

[0451] In step S5201, the first signaling is sent;

[0452] In step S5202, the second signaling is sent;

[0453] In step S5203, receiving the first measurement report;

[0454] In step S5204, the first switching command is sent;

[0455] In step S5205, the first message is received.

[0456] In embodiment 5, as a response to receiving the first handover command, whether to switch to the second cell depends on whether the measurement quality of at least the first reference signal resource satisfies the first condition; whether to switch to the second cell depends on whether the measurement quality of at least the first reference signal resource satisfies the first condition includes:

[0457] If the measured quality of at least the first reference signal resource satisfies the first condition, switching to the second cell;

[0458] If the measured quality of at least the first reference signal resource does not satisfy the first condition, switching to the second cell is not performed.

[0459] As an embodiment, the terminal U01 is a UE.

[0460] As an embodiment, the terminal U01 is a testing device.

[0461] As an embodiment, the terminal U01 is a relay.

[0462] As an embodiment, the terminal U01 is an IAB-node.

[0463] As an embodiment, the terminal U01 is an IAB-MT.

[0464] As an embodiment, the base station N02 is a NB.

[0465] As an embodiment, the base station N02 is an eNB.

[0466] As an embodiment, the base station N02 is a gNB.

[0467] As an embodiment, the base station N02 is an IAB-DU.

[0468] As an embodiment, the base station N02 is an IAB-donor.

[0469] As an embodiment, the terminal U01 is an IAB-node, and the base station N02 is an IAB-donor.

[0470] As an embodiment, the terminal U01 is a UE and the base station N02 is a gNB.

[0471] As an embodiment, the terminal U01 is a UE, and the base station N02 is a relay.

[0472] As an embodiment, the terminal U01 and the base station N02 are connected wirelessly.

[0473] As an embodiment, the terminal U01 and the base station N02 are connected via a wired connection.

[0474] As an embodiment, the terminal U01 and the base station N02 are connected via a Uu port.

[0475] As an embodiment, the terminal U01 and the base station N02 are connected via an NR Uu port.

[0476] As an embodiment, the terminal U01 and the base station N02 are connected via a PC5 interface.

[0477] As an embodiment, the dashed box F5.1 is optional.

[0478] As an embodiment, the dotted box F5.1 does not exist.

[0479] As an embodiment, as long as the first condition is configured, whether to switch to the second cell depends on whether the measured quality of at least the first reference signal resource satisfies the first condition.

[0480] As an embodiment, the dashed box F5.1 exists.

[0481] As an embodiment, the second signaling enables not switching to the second cell when the measurement quality of at least the first reference signal resource does not meet the first condition.

[0482] As an embodiment, the second signaling belongs to the first signaling.

[0483] As an embodiment, the second signaling belongs to an RRCReconfiguration message including an LTM-Config IE.

[0484] As an embodiment, the second signaling belongs to an LTM-Config IE.

[0485] As an embodiment, the second signaling belongs to an LTM-Candidate IE.

[0486] As an embodiment, the second signaling is an RRC domain, and the RRC domain is set to true.

[0487] As an embodiment, the dashed box F5.2 is optional.

[0488] As an embodiment, the dotted box F5.2 does not exist.

[0489] As a sub-embodiment of the above embodiment, in response to receiving the first switching command, if the measured quality of at least the first reference signal resource does not meet the first condition, no indication is given to a higher layer that the LTM cell switch process is triggered.

[0490] As a sub-embodiment of the above embodiment, in response to the first handover command being received, if at least the measurement quality of the first reference signal resource does not satisfy the first condition, the first handover command is not executed.

[0491] As a sub-embodiment of the above embodiment, in response to the first handover command being received, if at least the measured quality of the first reference signal resource does not satisfy the first condition, the first handover command is ignored.

[0492] As a sub-embodiment of the above embodiment, in response to receiving the first handover command, if at least the measurement quality of the first reference signal resource does not satisfy the first condition, the first serving cell is maintained.

[0493] As a sub-embodiment of the above embodiment, in response to receiving the first handover command, if the measured quality of at least the first reference signal resource does not meet the first condition, RRC connection re-establishment is triggered.

[0494] As an embodiment, the dashed box F5.2 exists.

[0495] As an embodiment, the time domain resources occupied by the first message are preconfigured.

[0496] As an embodiment, the frequency domain resources occupied by the first message are preconfigured.

[0497] As an embodiment, the first message occupies the time domain resources of the measurement report.

[0498] As an embodiment, the time-frequency resources occupied by the first message are configured by LTM-CSI-ReportConfig.

[0499] As an embodiment, the time-frequency resources occupied by the first message are indicated by an LTM-CSI-ReportConfigId.

[0500] As an embodiment, the first message occupies time-frequency resources for event-triggered LTM reporting.

[0501] As an embodiment, the first message indicates not to switch to the second cell.

[0502] As an embodiment, the first message indicates cancellation of switching to the second cell.

[0503] As an embodiment, the first message includes a measurement result.

[0504] As an embodiment, the first message includes the measurement result of the second cell.

[0505] As an embodiment, the first message includes the measurement result of the first serving cell and the measurement result of the second cell.

[0506] As an embodiment, the first message is an RRC message.

[0507] As an embodiment, the first message is a MAC CE.

[0508] As an embodiment, the first message is a UCI.

[0509] As an embodiment, the first message is a Preamble.

[0510] As an embodiment, the first message indicates the reason for not switching to the second cell.

[0511] As an embodiment, the first message indicates that the reason for not switching to the second cell includes that the first serving cell becomes better.

[0512] As an embodiment, the first message indicates that the reason for not switching to the second cell includes that the second cell has deteriorated.

[0513] As an embodiment, the first message indicates that the reason for not switching to the second cell includes that the first serving cell becomes better and the second cell becomes worse.

[0514] As an embodiment, the first serving cell becoming better means that the measurement quality of at least one reference signal resource of the first serving cell satisfies the third condition.

[0515] As an embodiment, the second cell deterioration means that the measurement quality of at least the first reference signal resource does not meet the first condition.

[0516] Example 6

[0517] Embodiment 6 illustrates a schematic diagram of a trigger condition for a first measurement report according to an embodiment of the present application, as shown in the attached figure. Figure 6 shown.

[0518] In Embodiment 6, the first measurement report is triggered when the measurement quality of at least one reference signal resource of the second cell satisfies the first condition.

[0519] As an embodiment, if the measurement quality of at least one reference signal resource of the second cell meets the first condition, the first measurement report is triggered.

[0520] As an embodiment, if the measurement quality of at least one reference signal resource of the first serving cell does not satisfy the third condition and the measurement quality of at least one reference signal resource of the second cell satisfies the first condition, the first measurement report is triggered.

[0521] As an embodiment, if the measurement quality of at least one reference signal resource of the first serving cell is worse than a threshold and the measurement quality of at least one reference signal resource of the second cell satisfies the first condition, the first measurement report is triggered.

[0522] As an embodiment, if the measurement quality of at least one reference signal resource for the second cell is better than the measurement quality of at least one reference signal resource for the first serving cell, the first measurement report is triggered.

[0523] As an embodiment, the measurement quality of at least one reference signal resource of the second cell is at least one measurement value of at least one reference signal resource of the second cell.

[0524] As an embodiment, the measurement quality of at least one reference signal resource of the second cell is a value obtained by a first operation of at least one measurement value of at least one reference signal resource of the second cell.

[0525] As an embodiment, whether the measurement quality of at least one reference signal resource of the second cell satisfies / does not satisfy the first condition means that: the measurement quality of at least one reference signal resource of the second cell is better than / worse than the first threshold; and the first condition includes the first threshold.

[0526] As an embodiment, whether the measurement quality of at least one reference signal resource of the second cell satisfies / does not satisfy the first condition means that the sum of the measurement quality of at least one reference signal resource of the second cell and the second offset is better than / worse than the first threshold; and the second condition includes the first threshold and the first offset.

[0527] As an embodiment, the measurement quality of at least one reference signal resource of the second cell is better / worse than a first threshold value means that each measurement value of at least one measurement value of at least one reference signal resource of the second cell is better / worse than the first threshold value.

[0528] As an embodiment, the measurement quality of at least one reference signal resource of the second cell is better / worse than a first threshold value means that at least one of the at least one measurement value of at least one reference signal resource of the second cell is better / worse than the first threshold value.

[0529] As an embodiment, the measurement quality of at least one reference signal resource of the second cell is better / worse than a first threshold value means that at least one measurement value of at least one reference signal resource of the second cell obtained by a first operation is better / worse than the first threshold value.

[0530] As an embodiment, the measurement quality of at least one reference signal resource of the second cell is better / worse than a first threshold value means that the sum of each measurement value of at least one measurement value of at least one reference signal resource of the second cell and the second offset is better / worse than the first threshold value.

[0531] As an embodiment, the measurement quality of at least one reference signal resource of the second cell is better / worse than a first threshold value means that the sum of at least one of the at least one measurement value of at least one reference signal resource of the second cell and the first offset is better / worse than the first threshold value.

[0532] As an embodiment, the measurement quality of at least one reference signal resource of the second cell is better / worse than a first threshold value means that the sum of a value obtained by a first operation of at least one measurement value of at least one reference signal resource of the second cell and a first offset is better / worse than the first threshold value.

[0533] As an embodiment, when the measurement quality of at least one reference signal resource of the second cell satisfies the first condition to trigger the first measurement report, whether to switch to the second cell as a response to the first switching command being received depends on whether the first time interval satisfies the first time length.

[0534] As an embodiment, assuming that the first measurement report is triggered periodically, switching to the second cell is performed in response to receiving the first switching command.

[0535] As an embodiment, the service cell of the terminal is the first service cell.

[0536] As an embodiment, the service cell of the terminal is a cell in the cell group to which the first service cell belongs.

[0537] As an embodiment, the service cell of the terminal is any service cell of the terminal.

[0538] Example 7

[0539] Embodiment 7 illustrates a schematic diagram of a triggering condition for a first measurement report according to another embodiment of the present application, as shown in the attached figure. Figure 7 shown.

[0540] In Embodiment 7, the measurement quality of at least one reference signal resource of the second cell satisfies a second condition to trigger the first measurement report; wherein, the first signaling configures the second condition; and the second condition is different from the first condition.

[0541] As an embodiment, if the measurement quality of at least one reference signal resource of the second cell satisfies the second condition, the first measurement report is triggered.

[0542] As an embodiment, if the measurement quality of at least one reference signal resource of the first serving cell does not satisfy the third condition and the measurement quality of at least one reference signal resource of the second cell satisfies the second condition, the first measurement report is triggered.

[0543] As an embodiment, if the measurement quality of at least one reference signal resource of the first serving cell is worse than a threshold and the measurement quality of at least one reference signal resource of the second cell satisfies the second condition, the first measurement report is triggered.

[0544] As an embodiment, the measurement quality of at least one reference signal resource of the second cell is at least one measurement value of at least one reference signal resource of the second cell.

[0545] As an embodiment, the measurement quality of at least one reference signal resource of the second cell is a value obtained by a first operation of at least one measurement value of at least one reference signal resource of the second cell.

[0546] As an embodiment, whether the measurement quality of at least one reference signal resource of the second cell satisfies / does not satisfy the second condition means that: the measurement quality of at least one reference signal resource of the second cell is better than / worse than the second threshold; the second condition includes the second threshold; the second threshold is different from the first threshold.

[0547] As an embodiment, whether the measurement quality of at least one reference signal resource of the second cell satisfies / does not satisfy the second condition means that the sum of the measurement quality of at least one reference signal resource of the second cell and the second offset is better than / worse than the second threshold; the second condition includes the second threshold and the second offset.

[0548] As a sub-embodiment of the above embodiment, the second threshold is the same as the first threshold, and the second offset is different from the first offset.

[0549] As a sub-embodiment of the above embodiment, the second threshold value is different from the first threshold value, and the second offset value is different from the first offset value.

[0550] As an embodiment, the measurement quality of at least one reference signal resource of the second cell is better / worse than a second threshold means that each measurement value of at least one measurement value of at least one reference signal resource of the second cell is better / worse than the second threshold.

[0551] As an embodiment, the measurement quality of at least one reference signal resource of the second cell is better / worse than a second threshold means that at least one of the at least one measurement value of at least one reference signal resource of the second cell is better / worse than the second threshold.

[0552] As an embodiment, the measurement quality of at least one reference signal resource of the second cell is better / worse than a second threshold value means that a value obtained by a first operation of at least one measurement value of at least one reference signal resource of the second cell is better / worse than the second threshold value.

[0553] As an embodiment, the measurement quality of at least one reference signal resource of the second cell is better / worse than a second threshold value means that the sum of each measurement value of at least one measurement value of at least one reference signal resource of the second cell and the second offset is better / worse than the second threshold value.

[0554] As an embodiment, the measurement quality of at least one reference signal resource of the second cell is better / worse than a second threshold value means that the sum of at least one of the at least one measurement value of at least one reference signal resource of the second cell and the second offset is better / worse than the second threshold value.

[0555] As an embodiment, the measurement quality of at least one reference signal resource of the second cell is better / worse than a second threshold value means that the sum of a value obtained by a first operation of at least one measurement value of at least one reference signal resource of the second cell and a second offset is better / worse than the second threshold value.

[0556] As an embodiment, the first signaling indicates the second threshold.

[0557] As an embodiment, the first threshold is specific to the second cell.

[0558] As an embodiment, the first threshold is specific to the second condition.

[0559] As an embodiment, the first threshold is specific to the triggering event to which the second condition belongs.

[0560] As an embodiment, the first signaling indicates the second offset.

[0561] As an embodiment, the second offset is configured by the base station.

[0562] As an embodiment, the second offset is preconfigured.

[0563] As an embodiment, the second offset is an offset.

[0564] As an embodiment, the second offset is a plurality of offsets.

[0565] As an embodiment, the second offset is specific to the second cell.

[0566] As an embodiment, at least part of the second offset is specific to the second cell.

[0567] As an embodiment, the second offset is specific to the second condition.

[0568] As an embodiment, the second offset is specific to the triggering event to which the second condition belongs.

[0569] As an embodiment, the second offset is for Event LTM3.

[0570] As an embodiment, the second offset is for Event LTM4.

[0571] As an embodiment, the second offset is for Event LTM5.

[0572] As an embodiment, the second offset includes a Hysteresis.

[0573] As an embodiment, the second offset includes an a3-Offset.

[0574] As an embodiment, the second offset includes an a4-Offset.

[0575] As an embodiment, the second offset includes an a5-Offset.

[0576] As an embodiment, the second offset includes an Ltm-Offset.

[0577] As an embodiment, when the sending of the first measurement report depends on the measurement quality of at least one reference signal resource satisfying the second condition, as a response to the first switching command being received, whether to switch to the second cell depends on whether the first time interval satisfies the first time length.

[0578] As an embodiment, assuming that the first measurement report is triggered periodically, switching to the second cell is performed in response to receiving the first switching command.

[0579] Example 8

[0580] Embodiment 8 illustrates a schematic diagram of a triggering condition for a first measurement report according to another embodiment of the present application. Figure 8 In the figure, the horizontal axis represents time; a measurement report is sent every other period; the first measurement report is one of the measurement reports sent periodically.

[0581] In embodiment 8, the first measurement report is triggered periodically.

[0582] As an embodiment, the time domain resources used for the first measurement report appear periodically.

[0583] As an embodiment, the time domain resources used for the first measurement report are periodically configured.

[0584] As an embodiment, the time domain resources used for the first measurement report are preconfigured.

[0585] As an embodiment, the time domain resources used for the first measurement report are predefined.

[0586] As an embodiment, the first measurement report is reported via PUCCH.

[0587] As an embodiment, the first measurement report is reported via PUSCH.

[0588] As an embodiment, the first signaling includes measurement configuration.

[0589] As an embodiment, the first signaling includes an LTM-CSI-ReportConfig, and the LTM-CSI-ReportConfig indicates the time domain resources used for the first measurement report.

[0590] As an embodiment, the first signaling includes a periodic, and the periodic indicates the time domain resources of the first measurement report.

[0591] As an embodiment, the first signaling includes a CSI-ReportPeriodicityAndOffset, and the CSI-ReportPeriodicityAndOffset indicates the period of the measurement report and the time slot occupied by the measurement report in each period.

[0592] Example 9

[0593] Embodiment 9 illustrates a schematic diagram of whether to switch to the second cell depending on whether the first time interval meets the first time length according to an embodiment of the present application, as shown in the attached figure. Fig. 9 shown.

[0594] In Embodiment 9, whether to switch to the second cell depends on whether a first time interval satisfies a first time length; wherein the first time interval depends on the first measurement report and the first switching command.

[0595] As an embodiment, whether to switch to the second cell depends on whether the measured quality of at least the first reference signal resource satisfies the first condition and whether to switch to the second cell depends on whether the first time interval satisfies a first time length.

[0596] As an embodiment, whether to switch to the second cell depends on whether the first time interval meets the first time length, including:

[0597] If at least the first time interval satisfies the first time length, switching to the second cell;

[0598] If the first time interval does not meet the first time length, switching to the second cell is not performed.

[0599] As an embodiment, whether to switch to the second cell depends on whether the measurement quality of at least the first reference signal resource satisfies the first condition and whether to switch to the second cell depends on whether the first time interval satisfies the first time length, including:

[0600] If the measured quality at least for at least the first reference signal resource satisfies the first condition and the first time interval satisfies the first time length, switching to the second cell;

[0601] If the measured quality of at least the first reference signal resource does not satisfy the first condition or the first time interval does not satisfy the first time length, switching to the second cell is not performed.

[0602] As an embodiment, if the measured quality of at least the first reference signal resource satisfies the first condition and the first time interval satisfies the first time length, switching to the second cell is performed.

[0603] As an embodiment, if the measurement quality of at least the first reference signal resource satisfies the first condition and the first time interval satisfies the first time length and at least another condition is met, switch to the second cell; wherein the at least another condition may include at least one of the measurement result or position or prediction result of the first service cell.

[0604] As an embodiment, within the first time interval, the terminal does not send a measurement report including the measurement result of the second cell other than the first measurement report.

[0605] As an embodiment, the start time of the first time interval is related to the time when the first measurement report is sent.

[0606] As an embodiment, the start time of the first time interval is the time when the first measurement report is sent.

[0607] As an embodiment, the time when the first measurement report is sent is the time when the first measurement report is delivered to a lower layer.

[0608] As an embodiment, the time when the first measurement report is sent is the time when a lower layer is instructed to send the first measurement report.

[0609] As an embodiment, the time when the first measurement report is sent is the time when the first measurement report is sent at the physical layer.

[0610] As an embodiment, the time when the first measurement report is sent refers to the time when the first measurement report is sent for the first time.

[0611] As an embodiment, the start time of the first time interval is related to the symbol occupied by the first measurement report.

[0612] As an embodiment, the start time of the first time interval is the last symbol occupied by the first measurement report.

[0613] As an embodiment, the start time of the first time interval is a time after the last symbol occupied by the first measurement report.

[0614] As an embodiment, the start time of the first time interval is related to the time when the first measurement report is successfully sent.

[0615] As an embodiment, the start time of the first time interval is the time when the first measurement report is successfully sent.

[0616] As an embodiment, the time when the first measurement report is successfully sent refers to the time when an ACK for the first measurement report is received.

[0617] As an embodiment, the time when the first measurement report is successfully sent refers to the time when the first measurement report is confirmed to be successfully sent.

[0618] As an embodiment, the end time of the first time interval is related to the time when the first switching command is received.

[0619] As an embodiment, the end time of the first time interval is the time when the first switching command is received.

[0620] As an embodiment, the time when the first switching command is received is the time when the first switching command is received at the MAC sublayer.

[0621] As an embodiment, the time when the first switching command is received is the time when the MAC PDU to which the first switching command belongs is demultiplexed.

[0622] As an embodiment, the time when the first switching command is received is the time when a field in the first switching command is interpreted.

[0623] As an embodiment, the first time interval is the time interval between the time when the first measurement report is sent and the time when the first switching command is received.

[0624] As an embodiment, the first time interval is a time interval between a start time of the first time interval and an end time of the first time interval.

[0625] As an embodiment, the first signaling configures the first time length.

[0626] As an embodiment, the first signaling is used to determine the first time length.

[0627] As an embodiment, the first signaling explicitly indicates the first time length.

[0628] As an embodiment, the first signaling implicitly indicates the first time length.

[0629] As an embodiment, the first time length is configurable.

[0630] As an embodiment, the first time length is a default.

[0631] As an embodiment, the first time length is predefined.

[0632] As an embodiment, the first time length includes a positive integer number of milliseconds.

[0633] As an embodiment, the first time length includes a positive integer number of subframes.

[0634] As an embodiment, the first time length is achieved by a timer.

[0635] As an embodiment, the first time length is implemented by a timestamp.

[0636] As an embodiment, the start time of the first time interval is recorded by a timestamp.

[0637] As an embodiment, the first time length is implemented by the terminal based on UE.

[0638] As an embodiment, the first time interval meets / does not meet the first time length means that: the length of the first time interval is less than / is not less than the first time length.

[0639] As an embodiment, whether the first time interval satisfies / does not satisfy the first time length means that the length of the first time interval is not greater than / greater than the first time length.

[0640] As an embodiment, whether the first time interval satisfies / does not satisfy the first time length means that the difference between the end time of the first time interval and the start time of the first time interval is less than / not less than the first time length.

[0641] As an embodiment, whether the first time interval satisfies / does not satisfy the first time length means that the difference between the end time of the first time interval and the start time of the first time interval is not greater than / greater than the first time length.

[0642] As an embodiment, the first time length is the value of a timer; at the start time of the first time interval, the timer is started; the first time interval meets / does not meet the first time length means: the timer is running / not running.

[0643] Example 10

[0644] Embodiment 10 illustrates a schematic diagram of whether to switch to the second cell according to an embodiment of the present application depending on whether the measurement quality of at least one reference signal resource of the first serving cell meets the third condition, as shown in the attached Fig.10 shown.

[0645] In Embodiment 10, whether to switch to the second cell depends on whether the measured quality of at least one reference signal resource of the first serving cell satisfies a third condition; wherein the first signaling configures the third condition.

[0646] As an embodiment, whether to switch to the second cell depends on whether the measurement quality of at least the first reference signal resource satisfies the first condition and whether to switch to the second cell depends on whether the measurement quality of at least one reference signal resource of the first serving cell satisfies the third condition.

[0647] As an embodiment, whether to switch to the second cell depends on whether the measurement quality of at least the first reference signal resource satisfies the first condition, and whether to switch to the second cell depends on whether the measurement quality of at least one reference signal resource of the first serving cell satisfies the third condition, including:

[0648] If the measured quality for at least the first reference signal resource satisfies the first condition and the measured quality for the at least one reference signal resource of the first serving cell satisfies the third condition, switching to the second cell;

[0649] If the measurement quality for at least the first reference signal resource does not satisfy the first condition or the measurement quality for the at least one reference signal resource of the first serving cell does not satisfy the third condition, switching to the second cell is not performed.

[0650] As an embodiment, if the measurement quality of at least the first reference signal resource satisfies the first condition and the measurement quality of at least one reference signal resource of the first service cell satisfies the third condition and at least another condition is met, switch to the second cell; wherein the at least another condition may include at least one of time or location or prediction results.

[0651] As an embodiment, whether to switch to the second cell depends on whether the measurement quality of at least the first reference signal resource satisfies the first condition and whether to switch to the second cell depends on whether the first time interval satisfies the first time length and whether to switch to the second cell depends on whether the measurement quality of at least one reference signal resource of the first service cell satisfies the third condition.

[0652] As an embodiment, whether to switch to the second cell depends on whether the measurement quality of at least the first reference signal resource satisfies the first condition, and whether to switch to the second cell depends on whether the first time interval satisfies the first time length, and whether to switch to the second cell depends on whether the measurement quality of at least one reference signal resource of the first serving cell satisfies the third condition, including:

[0653] If the measured quality for at least the first reference signal resource satisfies the first condition and the measured quality for the at least one reference signal resource of the first serving cell satisfies the third condition and the first time interval satisfies the first time length, switching to the second cell;

[0654] If the measurement quality of at least the first reference signal resource does not satisfy the first condition or the measurement quality of the at least one reference signal resource of the first serving cell does not satisfy the third condition or the first time interval does not satisfy the first time length, switching to the second cell is not performed.

[0655] As an embodiment, if the measurement quality of at least the first reference signal resource satisfies the first condition and the measurement quality of at least one reference signal resource of the first service cell satisfies the third condition and the first time interval satisfies the first time length and at least another condition is met, switch to the second cell; wherein the at least another condition may include at least one of a position or a prediction result.

[0656] As an embodiment, whether the measurement quality of at least one reference signal resource of the first service cell satisfies / does not satisfy the third condition means that: the measurement quality of at least one reference signal resource of the first service cell is worse than / better than a third threshold; and the third condition includes the third threshold.

[0657] As an embodiment, whether the measurement quality of at least one reference signal resource of the first service cell satisfies / does not satisfy the third condition means that: the sum of the measurement quality of at least one reference signal resource of the first service cell and the third offset is worse than / better than a third threshold; the third condition includes the third threshold and the third offset.

[0658] As an embodiment, the measurement quality of at least one reference signal resource of the first service cell is worse than / better than a third threshold value means that each measurement value of at least one measurement value of at least one reference signal resource of the first service cell is worse than / better than the third threshold value.

[0659] As an embodiment, the measurement quality of at least one reference signal resource of the first service cell is worse than / better than a third threshold value means that at least one of the at least one measurement value of at least one reference signal resource of the first service cell is worse than / better than the third threshold value.

[0660] As an embodiment, the measurement quality of at least one reference signal resource of the first service cell is worse than / better than a third threshold value means that a value obtained by a first operation of at least one measurement value of at least one reference signal resource of the first service cell is worse than / better than the third threshold value.

[0661] As an embodiment, the measurement quality of at least one reference signal resource of the first service cell is worse than / better than a third threshold value means that the sum of each measurement value of at least one measurement value of at least one reference signal resource of the first service cell and the third offset is worse than / better than the third threshold value.

[0662] As an embodiment, the measurement quality of at least one reference signal resource of the first service cell is worse than / better than a third threshold value, which means that the sum of at least one of the at least one measurement value of at least one reference signal resource of the first service cell and the third offset is worse than / better than the third threshold value.

[0663] As an embodiment, the measurement quality of at least one reference signal resource of the first service cell is better / worse than a third threshold value means that the sum of a value obtained by the first operation of at least one measurement value of at least one reference signal resource of the first service cell and a third offset is worse / better than the third threshold value.

[0664] As an embodiment, the first signaling indicates the third threshold.

[0665] As an embodiment, the third threshold is specific to the first serving cell.

[0666] As an embodiment, the third threshold is specific to the second cell.

[0667] As an embodiment, the third threshold is specific to the third condition.

[0668] As an embodiment, the third threshold is specific to the triggering event to which the third condition belongs.

[0669] Embodiment 11

[0670] Embodiment 11 illustrates a structural block diagram of a processing device used in a terminal according to an embodiment of the present application; Fig.11 As shown in the attached Fig.11 In the embodiment, the processing device 1100 in the terminal includes a first receiver 1101 and a first transmitter 1102.

[0671] A first receiver 1101 receives a first signaling, wherein the first signaling indicates a first condition;

[0672] The first transmitter 1102 sends a first measurement report, wherein the first measurement report includes a measurement result of at least one cell;

[0673] The first receiver 1101 receives a first handover command, wherein the first handover command indicates a second cell and a first reference signal resource, and the first handover command is for a first serving cell;

[0674] In Embodiment 11, as a response to receiving the first handover command, whether to switch to the second cell depends on whether the measurement quality of at least the first reference signal resource satisfies the first condition; whether to switch to the second cell depends on whether the measurement quality of at least the first reference signal resource satisfies the first condition includes:

[0675] If the measured quality of at least the first reference signal resource satisfies the first condition, switching to the second cell;

[0676] If the measured quality of at least the first reference signal resource does not satisfy the first condition, switching to the second cell is not performed.

[0677] As an embodiment, the first measurement report is triggered when the measurement quality of at least one reference signal resource of the second cell satisfies the first condition.

[0678] As an embodiment, the measurement quality of at least one reference signal resource of the second cell satisfies a second condition to trigger the first measurement report; wherein, the first signaling configures the second condition; and the second condition is different from the first condition.

[0679] As an embodiment, the first measurement report is triggered periodically.

[0680] As an embodiment, whether to switch to the second cell depends on whether a first time interval meets a first time length; wherein, the first time interval depends on the first measurement report and the first switching command.

[0681] As an embodiment, whether to switch to the second cell depends on whether the measurement quality of at least one reference signal resource of the first serving cell satisfies a third condition; wherein the first signaling configures the third condition.

[0682] As an embodiment, the first transmitter 1102, as a response to receiving the first handover command, sends a first message if the measured quality of the first reference signal resource does not meet the first condition;

[0683] The first message is sent on a serving cell of the terminal.

[0684] As an embodiment, the first receiver 1101 receives a second signaling; wherein, on the premise that the second signaling is received, whether to switch to the second cell depends on whether the measurement quality of at least the first reference signal resource satisfies the first condition.

[0685] As an embodiment, the first receiver 1101 includes the attached Figure 4 At least one of the antenna 452 or the receiver 454 or the multi-antenna receive processor 458 or the receive processor 456 or the controller / processor 459 or the memory 460 or the data source 467.

[0686] As an embodiment, the first receiver 1101 includes the attached Figure 4 At least an antenna 452 and a receiver 454.

[0687] As an embodiment, the first transmitter 1102 includes the attached Figure 4At 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.

[0688] As an embodiment, the first transmitter 1102 includes the attached Figure 4 At least antenna 452 and transmitter 454.

[0689] As an embodiment, the terminal includes: one or more processors and a memory; the memory is coupled to the one or more processors, the memory is used to store computer program code, the computer program code includes computer instructions, and the one or more processors call the computer instructions to enable the terminal to execute the method described in the present application that is used in the terminal.

[0690] Example 12

[0691] Embodiment 12 illustrates a structural block diagram of a processing device used in a base station according to an embodiment of the present application; Fig.12 As shown in the attached Fig.12 In the embodiment, the processing device 1200 in the base station includes a second transmitter 1201 and a second receiver 1202.

[0692] The second transmitter 1201 sends a first signaling, wherein the first signaling indicates a first condition;

[0693] The second receiver 1202 receives a first measurement report, wherein the first measurement report includes a measurement result of at least one cell;

[0694] The second transmitter 1201 receives a first handover command, wherein the first handover command indicates a second cell and a first reference signal resource, and the first handover command is for a first serving cell;

[0695] In Embodiment 12, as a response to the first handover command being received, whether the recipient of the first handover command switches to the second cell depends on whether the measurement quality of at least the first reference signal resource satisfies the first condition; whether switching to the second cell depends on whether the measurement quality of at least the first reference signal resource satisfies the first condition includes:

[0696] If the measured quality of at least the first reference signal resource satisfies the first condition, switching to the second cell;

[0697] If the measured quality of at least the first reference signal resource does not satisfy the first condition, switching to the second cell is not performed.

[0698] As an embodiment, the first measurement report is triggered when the measurement quality of at least one reference signal resource of the second cell satisfies the first condition.

[0699] As an embodiment, the measurement quality of at least one reference signal resource of the second cell satisfies a second condition to trigger the first measurement report; wherein, the first signaling configures the second condition; and the second condition is different from the first condition.

[0700] As an embodiment, the first measurement report is triggered periodically.

[0701] As an embodiment, whether to switch to the second cell depends on whether a first time interval meets a first time length; wherein, the first time interval depends on the first measurement report and the first switching command.

[0702] As an embodiment, whether to switch to the second cell depends on whether the measurement quality of at least one reference signal resource of the first serving cell satisfies a third condition; wherein the first signaling configures the third condition.

[0703] As an embodiment, the second receiver 1202 receives a first message; wherein, as a response to the first switching command being received, if the measurement quality of the first reference signal resource does not meet the first condition, the receiver of the first switching command sends the first message on the service cell of the receiver of the first switching command.

[0704] As an embodiment, the second transmitter 1201 sends a second signaling; wherein, on the premise that the second signaling is received, whether to switch to the second cell depends on whether the measurement quality of at least the first reference signal resource meets the first condition.

[0705] As an embodiment, the second transmitter 1201 includes the attached Figure 4 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.

[0706] As an embodiment, the second transmitter 1201 includes the attached Figure 4 At least antenna 420 and transmitter 418.

[0707] As an embodiment, the second receiver 1202 includes the attached Figure 4At least one of the antenna 420 or the receiver 418 or the multi-antenna reception processor 472 or the reception processor 470 or the controller / processor 475 or the memory 476.

[0708] As an embodiment, the second receiver 1202 includes the attached Figure 4 At least an antenna 420 and a receiver 418.

[0709] As an embodiment, the base station includes: one or more processors and a memory; the memory is coupled to the one or more processors, the memory is used to store computer program code, the computer program code includes computer instructions, and the one or more processors call the computer instructions to enable the base station to execute the method described in the present application that is used in the base station.

[0710] A person of ordinary skill in the art can understand that all or part of the steps in the above method can be completed by instructing the relevant hardware through a program, 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. Optionally, all or part of the steps in the above embodiment can also be implemented using one or more integrated circuits. Accordingly, 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 software and hardware combination. The user equipment, terminal and UE in the present application include but are not limited to drones, communication modules on drones, remote-controlled aircraft, aircraft, small aircraft, mobile phones, tablet computers, notebooks, vehicle-mounted communication equipment, wireless sensors, Internet cards, Internet of Things terminals, RFID terminals, NB-IOT terminals, MTC (Machine Type Communication, Machine Type Communication) terminals, eMTC (enhanced MTC, enhanced MTC) terminals, data cards, Internet cards, vehicle-mounted communication equipment, low-cost mobile phones, low-cost tablet computers and other wireless communication devices. The base stations or system devices in this application include but are not limited to macrocell base stations, microcell base stations, home base stations, relay base stations, gNB (NR Node B) NR Node B, TRP (Transmitter Receiver Point) and other wireless communication devices.

[0711] The above is only a 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

1. A method used in a terminal, characterized in that: include: Receiving a first signaling; wherein the first signaling indicates a first condition; Sending a first measurement report; wherein the first measurement report includes a measurement result of at least one cell; receiving a first handover command; wherein the first handover command indicates a second cell and a first reference signal resource, and the first handover command is for a first serving cell; Wherein, as a response to receiving the first handover command, whether to switch to the second cell depends on whether the measurement quality of at least the first reference signal resource satisfies the first condition; whether to switch to the second cell depends on whether the measurement quality of at least the first reference signal resource satisfies the first condition includes: If the measured quality of at least the first reference signal resource satisfies the first condition, switching to the second cell; If the measured quality of at least the first reference signal resource does not satisfy the first condition, switching to the second cell is not performed.

2. The method according to claim 1, characterized in that The first measurement report is triggered when the measurement quality of at least one reference signal resource of the second cell satisfies the first condition.

3. The method according to claim 1, characterized in that The first measurement report is triggered when the measurement quality of at least one reference signal resource of at least the second cell satisfies a second condition; wherein the first signaling configures the second condition; and the second condition is different from the first condition.

4. The method according to claim 1, characterized in that The first measurement report is triggered periodically.

5. The method according to any one of claims 1 to 4, characterized in that Whether to switch to the second cell depends on whether a first time interval meets a first time length; wherein the first time interval depends on the first measurement report and the first switching command.

6. The method according to any one of claims 1 to 5, characterized in that Whether to switch to the second cell depends on whether the measured quality of at least one reference signal resource of the first serving cell satisfies a third condition; wherein the first signaling configures the third condition.

7. The method according to any one of claims 1 to 6, characterized in that The method comprises: In response to receiving the first handover command, if the measured quality of the first reference signal resource does not satisfy the first condition, sending a first message; The first message is sent on a serving cell of the terminal.

8. The method according to any one of claims 1 to 7, characterized in that The method comprises: receiving a second signaling; Wherein, on the premise that the second signaling is received, whether to switch to the second cell depends on whether the measured quality of at least the first reference signal resource meets the first condition.

9. A terminal, characterized in that: The terminal includes: one or more processors and a memory; The memory is coupled to the one or more processors, and the memory is used to store computer program codes, where the computer program codes include computer instructions. The one or more processors call the computer instructions to enable the terminal to execute the method according to any one of claims 1 to 8.

10. A method used in a base station, characterized in that: include: Sending a first signaling; wherein the first signaling indicates a first condition; receiving a first measurement report; wherein the first measurement report includes a measurement result of at least one cell; Sending a first handover command; wherein the first handover command indicates the second cell and the first reference signal resource, and the first handover command is for the first serving cell; Wherein, as a response to the first handover command being received, whether the recipient of the first handover command switches to the second cell depends on whether the measurement quality of at least the first reference signal resource satisfies the first condition; whether switching to the second cell depends on whether the measurement quality of at least the first reference signal resource satisfies the first condition includes: If the measured quality of at least the first reference signal resource satisfies the first condition, switching to the second cell; If the measured quality of at least the first reference signal resource does not satisfy the first condition, switching to the second cell is not performed.

11. The method according to claim 10, characterized in that The first measurement report is triggered when the measurement quality of at least one reference signal resource of the second cell satisfies the first condition.

12. The method according to claim 10, characterized in that The first measurement report is triggered when the measurement quality of at least one reference signal resource of at least the second cell satisfies a second condition; wherein the first signaling configures the second condition; and the second condition is different from the first condition.

13. The method according to claim 10, characterized in that The first measurement report is triggered periodically.

14. The method according to any one of claims 10 to 13, characterized in that: Whether to switch to the second cell depends on whether a first time interval meets a first time length; wherein the first time interval depends on the first measurement report and the first switching command.

15. The method according to any one of claims 10 to 14, characterized in that Whether to switch to the second cell depends on whether the measured quality of at least one reference signal resource of the first serving cell satisfies a third condition; wherein the first signaling configures the third condition.

16. The method according to any one of claims 10 to 15, characterized in that The method comprises: receiving a first message; Wherein, as a response to the first handover command being received, if the measured quality of the first reference signal resource does not meet the first condition, the receiver of the first handover command sends the first message on the serving cell of the receiver of the first handover command.

17. The method according to any one of claims 10 to 16, characterized in that The method comprises: Sending a second signaling; Wherein, on the premise that the second signaling is received, whether to switch to the second cell depends on whether the measured quality of at least the first reference signal resource meets the first condition.

18. A base station, characterized in that: The base station includes: one or more processors and a memory; The memory is coupled to the one or more processors, and the memory is used to store computer program codes, where the computer program codes include computer instructions, and the one or more processors call the computer instructions to enable the base station to perform the method according to any one of claims 10 to 17.

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