CN117998489A

CN117998489A - Communication method, device and system and computer related product

Info

Publication number: CN117998489A
Application number: CN202211379663.XA
Authority: CN
Inventors: 毛颖超; 李秉肇; 李娇娇; 强鹂
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2022-11-04
Filing date: 2022-11-04
Publication date: 2024-05-07
Also published as: WO2024094117A1

Abstract

The application provides a communication method, a communication device, a communication system and a computer related product. The communication method comprises the following steps: receiving a first configuration from a network device, the first configuration comprising layer 1 and/or layer 2 triggered information of a mobility LTM candidate cell; receiving a second configuration from the network device, the second configuration comprising a first measurement configuration, the first measurement configuration comprising a measurement object configuration; if the first cell is an LTM candidate cell, the first behavior is not performed for the first cell, the first behavior including at least one of: and reporting the first measurement and the measurement result of the first measurement. According to the technical scheme provided by the application, the first measurement is not executed for the LTM candidate cells in the cells detected based on the measurement object, and the measurement report of the first measurement of the LTM candidate cells is not reported, so that unnecessary measurement can be reduced, power consumption is saved, frequent switching is further avoided, switching conflict is reduced, and the LTM switching performance is improved.

Description

Communication method, device and system and computer related product

Technical Field

The present application relates to the field of wireless communications technologies, and in particular, to a communication method, apparatus, and system, and a computer related product.

Background

In a wireless communication system, mobility management is to change a serving cell of a User Equipment (UE) so that the UE can enjoy network services regardless of movement within a network coverage area. In order to ensure continuity of UE communication, mobility of the connection state is accomplished through handover.

Currently, a fifth generation mobile communication technology (5 th-generation, 5G) radio access network (radio access network, RAN) architecture considers that a base station adopts a manner of independently deploying a centralized unit (centralized unit, CU) and a Distributed Unit (DU) so as to better meet the requirements of various scenes and applications. In order to reduce handover delay and further enhance service continuity in a CU-DU separated base station deployment, the 5G system considers to employ a lower layer based handover, which may be implemented by a layer 1 and/or layer 2 triggered mobility (L1/L2 TRIGGERED MOBILITY, LTM) procedure. The main ideas of the LTM process are: the base station provides the UE with pre-configuration information for one or more candidate cells based on measurement reports reported by the UE, such as radio resource management (radio resource management, RRM) measurement reports or layer 3 measurement reports. After the UE receives the preconfigured information from the base station, it sends a measurement report (e.g., layer 1 measurement report) to the base station, and the source DU decides to trigger the LTM handover based on the measurement report reported by the UE. The source DU transmits an LTM handover command to the UE through layer 1 signaling and/or layer 2 signaling to cause the UE to perform a handover procedure based on an indication in the handover command.

However, for a cell configured as LTM, if the UE performs both layer 1 measurement and RRM measurement, reporting the measurement result report of RRM may cause frequent handover, affecting LTM handover performance. For example, the base station may first handover the UE from cell 1 to cell 2 based on the layer 1 measurements. The base station may then also determine that the signal quality of cell 1 is higher than the signal quality of cell 2 based on the RRM measurements, switching the UE from cell 2 back to cell 1, resulting in frequent ping-pong handovers.

Disclosure of Invention

The embodiment of the application provides a communication method, a communication device, a communication system and a computer related product, which can reduce unnecessary measurement or report of a measurement result and save power consumption.

In a first aspect, the present application provides a first communication method, which may be applied to a terminal device, or may be applied to an apparatus (for example, a chip, or a chip system, or a circuit) in the terminal device, or may be an apparatus that can be used in cooperation with the terminal device, and will be described below by taking application to the terminal device as an example.

The method may include: the terminal equipment receives a first configuration from the network equipment; the terminal equipment receives a second configuration from the network equipment; if the first cell detected according to the measurement object configuration is an LTM candidate cell, the terminal device does not perform a first action with respect to the first cell; and/or if the first cell detected according to the measurement object configuration is not an LTM candidate cell, the terminal device performs a first action for the first cell.

The first configuration includes information of an LTM candidate cell, where the LTM candidate cell may be determined by the network device according to a measurement report (e.g., a layer 3 measurement report, etc.) reported by the terminal device. The application does not limit the number of the LTM candidate cells and the information of the LTM candidate cells, and the number of the LTM candidate cells can be one or a plurality of the LTM candidate cells. The information of the LTM candidate cell may include a physical cell identity (PHYSICAL CELL IDENTITIES, PCI) of the LTM candidate cell, and may further include configuration information of the LTM candidate cell.

The second configuration comprises a first measurement configuration comprising a measurement object configuration. The application is not limited to the type of first measurement and the content of the first measurement configuration, and in some possible implementations, the first measurement may include a layer 3 measurement or a radio resource management (radio resource management, RRM) measurement. The first measurement configuration may include a measurement object configuration, which may include parameters of the measurement object, for example, frequency point information of the measurement object, so that the terminal device may scan measurement results of the measurement object (cell) to be measured based on the frequency point information.

The first behavior includes at least one of: first measurement, reporting of measurement report of the first measurement. Alternatively, the first measurement is a layer 3 measurement and the measurement report of the first measurement may be a layer 3 measurement report. The first measurement is an RRM measurement and the measurement report of the first measurement may be an RRM measurement report. The terminal device not performing the first action with respect to the first cell may be understood as the terminal device performing the first action not being applicable to the LTM candidate cell in the first cell. If the first cell detected by the terminal device is an LTM candidate cell, the terminal device may not correlate the PCI of the first cell, so that the first measurement is not performed, and the measurement result of the first measurement is not reported.

In the scheme provided by the application, the terminal equipment receives the first configuration and the second configuration from the network equipment, if the first cell detected according to the configuration of the measurement object in the second configuration is the LTM candidate cell, the terminal equipment does not execute the first action aiming at the first cell, so that the first measurement can not be carried out on the LTM candidate cell, or the measurement result aiming at the first measurement of the LTM candidate cell can not be reported, the unnecessary measurement can be reduced, the power consumption is saved, the switching conflict is further reduced, the frequent switching can be avoided, and the LTM switching performance is improved. If the first cell detected according to the measurement object configuration in the second configuration is not an LTM candidate cell, a first action may be performed with respect to the first cell, so that a first measurement may be performed on the non-LTM candidate cell, and a measurement result of the first measurement of the non-LTM candidate cell may also be reported. The network device can trigger the layer 3 switching based on the reported cell measurement results, so that the switching performance is improved, and the communication quality of the terminal device is improved. In addition, compared with the prior art, the method and the device have the advantages that the first measurement is not performed on the LTM candidate cells in the cells detected based on the measurement object, the measurement report of the first measurement of the LTM candidate cells is not reported, and the first action is performed only on the first cells which do not belong to the LTM candidate cells, so that the measurement can be reduced, the power consumption is saved, the air interface overhead of measurement reporting is reduced, frequent switching can be avoided, frequent ping-pong switching can be avoided, and the LTM switching performance is improved.

In some possible implementations, the first configuration may further include first information or second information. Wherein the first information and the second information may be contained in the same indication. For example, one of the first information and the second information is included in the first indication, the first indication is indication information of 1 bit, the value of the first indication may be 0 or 1, the first indication is indicated to indicate the first information when the value of the first indication is 0, and the first indication is indicated to indicate the second information when the value of the first indication is 1; or when the value of the first indication is 1, the first indication is used for indicating the first information, and when the value of the first indication is 0, the first indication is used for indicating the second information. The first indication may be true or false, and indicates that the first indication is used for indicating the first information when the value of the first indication is true, and indicates that the first indication is used for indicating the second information when the value of the first indication is flase; or the first indication is used for indicating the first information when the value of the first indication is false, and the first indication is used for indicating the second information when the value of the first indication is true, and the like.

The first information and the second information may alternatively be contained in different indications. For example, the first information is a field, the second information is a second field, and if the network device is configured with the first field, the terminal device may perform the action indicated by the first information, and if the network device is configured with the second field, the terminal device may perform the action indicated by the second information.

The first information is used for indicating: if the first cell is not an LTM candidate cell, performing a first action with respect to the first cell; and/or if the first cell is an LTM candidate cell, not performing the first action for the first cell. That is, the first information is used to instruct the terminal device to perform the first action for the first cell that is not the LTM candidate cell, or is also used to instruct the terminal device not to perform the first action for the first cell that is the LTM candidate cell. It is understood that the first information is used to instruct the terminal device to perform the steps after the first configuration and the second configuration are received in the first aspect.

The second information is used to indicate that a first behavior is to be performed for the first cell. That is, whether or not the first cell is an LTM candidate cell, the first behavior needs to be performed with respect to the first cell. It is understood that the second information is used to instruct the terminal device not to perform the first configuration and the second configuration received in the first aspect, and that the terminal device performs the first behavior according to the existing method. By executing the first information, compared to executing the second information in the prior art, the first behavior is not executed for the LTM candidate cell in the cells detected based on the measurement object, so that unnecessary measurement can be reduced, power consumption can be saved, frequent ping-pong handover can be avoided, and LTM handover performance can be improved.

In some possible implementations, the first configuration may further include a second measurement configuration, and the communication method may further include: the terminal device performs the second measurement according to the second measurement configuration. Wherein the second measurement configuration may be understood as configuration information for the second measurement. The application is not limited to the type of the second measurement and the content of the second measurement configuration, and in some possible implementations, the second measurement may include at least one of: layer 1 measurement, SSB measurement, CSI-RS measurement. The second measurement configuration may include one or more of the following: measurement period, measurement resources (e.g., SSB or CSI-RS), measurement volume configuration, measurement interval, measurement identity, S measurement configuration.

It may be appreciated that, in the case that the first configuration further includes the second measurement configuration, the second measurement may be performed according to the second measurement configuration, and a measurement result of the second measurement may also be reported, so that the network device makes a handover decision based on the measurement result of the second measurement, and after confirming the handover, the terminal device may perform an LTM handover procedure, thereby improving handover efficiency.

In some possible implementations, the terminal device performing a first action for the first cell includes: the terminal device performs a first behavior for the first cell according to the first measurement configuration. Wherein the first measurement configuration may further comprise at least one of: measurement identification, reporting configuration, measurement quantity configuration, measurement interval configuration, S configuration and other parameters. It will be appreciated that performing the first behavior based on the parameters in the first measurement configuration may improve accuracy in performing the first behavior, which may be beneficial for improving handover performance.

In some possible implementations, the terminal device performing a first action for the first cell includes: if the timer of the measurement period is overtime or the measurement event meets the measurement report triggering condition, reporting a measurement result of performing a measurement for the first cell. Therefore, when the timer of the measurement period is overtime or the measurement event meets the measurement report triggering condition, the measurement result of the first measurement of the non-LTM candidate cell is reported, and the network equipment can trigger layer 3 switching based on the reported measurement results of the cells, so that the switching performance is ensured.

In a second aspect, the present application provides a second communication method, which may be applied to a terminal device, or may be applied to an apparatus (for example, a chip, or a chip system, or a circuit) in the terminal device, or may be an apparatus that can be used in cooperation with the terminal device, and will be described below by taking application to the terminal device as an example. The method may include: the terminal equipment receives a third configuration from the network equipment; the terminal equipment receives a second configuration from the network equipment; if the first cell detected according to the measurement object configuration is a cell in the first list, the terminal device does not perform the first action for the first cell; and/or if the first cell detected according to the measurement object configuration is not a cell in the first list, the terminal device performs a first action for the first cell.

Wherein the third configuration comprises a first list comprising at least one cell. The third configuration and the first configuration may be contained in the same message, or the third configuration and the first configuration may be contained in different messages. The cells in the first list do not perform the first actions, which include the first measurements and/or reporting of measurement results of the first measurements. The cells in the first list include LTM candidate cells. The LTM candidate cells herein may be all LTM candidate cells or may include a part of LTM candidate cells. In one example, the cells in the first list include part of the candidate cells. It can be understood that reporting the measurement result of the first measurement of the partial cell can save power consumption and air interface resources.

It can be understood that the network device may configure the cells of the terminal device that do not perform the first behavior through the list, and by means of network configuration, the flexibility of configuration is improved. The terminal device executes the first behavior according to the first measurement configuration and the first list of the network configuration, and does not execute the first behavior aiming at partial LTM candidate cells, so that the measurement power consumption of the terminal device is reduced, and the air interface resource for measurement reporting is saved. In addition, in some network deployments, the network device needs to perform functions such as carrier management or LTM candidate cell management, or may configure LTM candidate cells that do not belong to the first list, so that the terminal device performs first measurement on the LTM candidate cells that do not belong to the first list, thereby implementing a cell management or carrier management function.

In a third aspect, the present application provides a third communication method, which may be applied to a terminal device, or may be applied to an apparatus (for example, a chip, or a chip system, or a circuit) in the terminal device, or may be an apparatus that can be used in cooperation with the terminal device, and will be described below by taking application to the terminal device as an example. The method may include: the terminal device receives a fourth configuration from the network device.

The fourth configuration includes third information, where the third information indicates a measurement event type that allows or prohibits reporting of the measurement result. The fourth configuration may be information in the first configuration, or may be information different from the first configuration. The application does not limit the type of the measurement event which allows or prohibits the report of the measurement result, and can be the type of the measurement event. For example, the measurement event type allowing the measurement result to report is the measurement event type of the A1 measurement event, the measurement event type prohibiting the measurement result to report is the measurement event type of the A3 measurement event, and so on. Thus, when the measurement result of the A1 measurement event meets the measurement report trigger condition of the A1 measurement event, and when the trigger condition of the A3 measurement event meets the measurement report trigger condition of the A3 measurement event, the measurement result obtained by the A3 measurement event is not reported.

It can be understood that the terminal device receives the fourth configuration from the network device, and determines the measurement event type that allows or prohibits reporting of the measurement result according to the third information in the fourth configuration, so that the terminal device can report or not report the measurement event related result based on each event type, reporting of the measurement result based on each event can be reduced, and power consumption and air interface resources are saved. For example, if the network device includes the A3 event in the second list indicating that the measurement result is prohibited from being reported, the UE does not report the measurement result of the A3 event based on the second list, and the network device does not receive the measurement result of the A3 event, so that the handover decision is not performed based on the A3 event, so that the collision of the layer 1 and the layer 3 handover is avoided, frequent ping-pong handover is avoided, and the LTM handover performance can be improved.

In some possible implementations, the third information may include a second list including at least one measurement event type. If the measurement event type included in the second list is a measurement event type allowing the measurement result to be reported, the third information is used for indicating the measurement event type allowing the measurement result to be reported. And if the measurement event type included in the second list is the measurement event type for prohibiting the measurement result from being reported, the third information is used for indicating the measurement event type for prohibiting the measurement result from being reported. It can be appreciated that configuration resources can be saved by configuring the measurement event types that enable or disable reporting of measurement results via a list.

In some possible implementations, the method may further include the steps of: the network equipment sends a second configuration to the terminal equipment; if the first cell detected according to the measurement object configuration is an LTM candidate cell, reporting a measurement result when the measurement result of the first cell meets a measurement reporting trigger condition of a measurement event type allowing the measurement result to be reported; and/or if the first cell detected according to the measurement object configuration is an LTM candidate cell, not reporting the measurement result when the measurement event type of the first cell meets the measurement event type of prohibiting the reporting of the measurement result.

Wherein the second configuration comprises a first measurement configuration comprising a measurement object configuration. In some possible examples, it may further include: the network device sends the first configuration to the terminal device. It can be understood that the terminal device detects the first cell according to the measurement object configuration in the second configuration from the network device, and if the first cell is an LTM candidate cell, the measurement result of the first cell may be reported when the measurement result of the first cell satisfies a measurement report trigger condition of a measurement event type that allows the measurement result to be reported. When the first cell is an LTM candidate cell, but the measurement event type of the first cell is a measurement event type which prohibits the reporting of the measurement result, the measurement report is not reported even if the measurement result of the first cell satisfies the measurement report triggering condition. Therefore, the measurement result to be reported is screened through the measurement event type and the measurement report triggering condition, unnecessary measurement report can be avoided, power consumption and air interface resources can be saved, and the switching performance is improved. Alternatively, the measurement results for the non-LTM candidate cells in the first cell may be reported. Or reporting can be performed when the measurement result of the non-LTM candidate cell meets a preset measurement reporting triggering condition.

In some possible implementations, the first measurement configuration may further include a first measurement period, and the communication method may further include the steps of: the network equipment sends a fifth configuration to the terminal equipment; if the first cell is an LTM candidate cell, performing a first measurement for the first cell based on the second measurement period; or if the first cell is not an LTM candidate cell, performing a first measurement for the first cell based on the first measurement period.

Wherein the second measurement period is greater than the first measurement period. The first measurement period is applicable to non-LTM candidate cells in the first cell detected according to the measurement object configuration, and the second measurement period is applicable to LTM candidate cells in the first cell. That is, when the first cell is a non-LTM candidate cell, the first measurement may be performed for the first cell based on the first measurement period. And when the first cell is an LTM candidate cell, the first measurement may be performed for the first cell based on the second measurement period. In this way, the measurement period (or measurement window) of the LTM candidate cell may be greater than that of the non-LTM candidate cell, so as to reduce the first measurement for the LTM candidate cell, thereby reducing reporting of the measurement result, saving power consumption and air interface resources, and being beneficial to improving the LTM handover performance.

In a fourth aspect, the present application provides a fourth communication method, which may be applied to a terminal device, or may be applied to an apparatus (for example, a chip, or a chip system, or a circuit) in the terminal device, or may be an apparatus that can be used in cooperation with the terminal device, and will be described below by taking application to the terminal device as an example. The method may include: the terminal equipment receives a second configuration from the network equipment; the terminal equipment receives a fifth configuration from the network equipment; if the first cell detected according to the measurement object configuration is an LTM candidate cell, the terminal device performs a first measurement for the first cell based on the second measurement period; and/or if the first cell detected according to the measurement object configuration is not an LTM candidate cell, the terminal device performs a first measurement for the first cell based on the first measurement period.

Wherein the second configuration comprises a first measurement configuration comprising a measurement object configuration and a first measurement period. The fifth configuration includes a second measurement period, the second measurement period being greater than the first measurement period. The first measurement period is applicable to non-LTM candidate cells in the first cell detected according to the measurement object configuration, and the second measurement period is applicable to LTM candidate cells in the first cell. It may be appreciated that the terminal device may receive the second configuration and the fifth configuration transmitted from the network device, may determine the first cell according to the measurement object configuration in the second configuration, and perform the first measurement for the first cell based on the first measurement period when the first cell is a non-LTM candidate cell. Or the first measurement may also be performed for the first cell based on the second measurement period when the first cell is an LTM candidate cell. In this way, the measurement period (or measurement window) of the LTM candidate cell may be greater than that of the non-LTM candidate cell, so as to reduce the first measurement for the LTM candidate cell, thereby reducing reporting of the measurement result, saving power consumption and air interface resources, and being beneficial to improving the LTM handover performance.

In a fifth aspect, the present application provides a fifth communication method, which may be applied to a network device, or may be applied to an apparatus (for example, a chip, or a chip system, or a circuit) in the network device, or may be an apparatus that can be used in cooperation with the network device, and will be described below by taking application to the network device as an example. The method may include: the network equipment sends a third configuration to the terminal equipment; wherein the third configuration comprises a first list comprising at least one cell, the cells in the first list not performing a first action, the first action comprising at least one of: and reporting the first measurement and the measurement result of the first measurement.

In some possible implementations, the cells in the first list include LTM candidate cells.

It should be understood that the implementation body of the fifth aspect may be a network device, where specific details of the fifth aspect correspond to those of the second aspect, and corresponding features and achieved beneficial effects of the fifth aspect may refer to descriptions of the second aspect, and detailed descriptions are omitted herein as appropriate to avoid repetition.

In a sixth aspect, the present application provides a sixth communication method, which may be applied to a network device, or may be applied to an apparatus (for example, a chip, or a chip system, or a circuit) in the network device, or may be an apparatus that can be used in cooperation with the network device, and will be described below by taking application to the network device as an example. The method may include: the network equipment sends a fourth configuration to the terminal equipment; the fourth configuration includes third information, where the third information indicates a measurement event type that allows or prohibits triggering of reporting of the measurement result.

In some possible implementations, the third information includes a second list including at least one measurement event type.

It should be understood that the implementation body of the sixth aspect may be a network device, where specific details of the sixth aspect correspond to those of the third aspect, and corresponding features and achieved beneficial effects of the sixth aspect may refer to the description of the third aspect, and detailed descriptions are omitted herein as appropriate to avoid repetition.

In a seventh aspect, the present application provides a third communication method, which may be applied to a network device, or may be applied to an apparatus (for example, a chip, or a chip system, or a circuit) in the network device, or may be an apparatus that can be used in cooperation with the network device, and will be described below by taking application to the network device as an example. The method may include: the network equipment sends a second configuration to the terminal equipment; the network equipment sends a fifth configuration to the terminal equipment; wherein the second configuration comprises a first measurement configuration comprising a measurement object configuration and a first measurement period. The fifth configuration includes a second measurement period, which is greater than the first measurement period, the first measurement period being adapted for non-LTM candidate cells in the first cell detected according to the measurement object configuration, and the second measurement period being adapted for LTM candidate cells in the first cell.

It should be understood that the implementation body of the seventh aspect may be a network device, where specific details of the seventh aspect correspond to those of the fourth aspect, and corresponding features and achieved beneficial effects of the seventh aspect may refer to the description of the fourth aspect, and detailed descriptions are omitted here as appropriate to avoid repetition.

The first configuration, the second configuration, the third configuration, the fourth configuration, and the fifth configuration may be included in the same message, for example, an RRC reconfiguration message, or may be included in different messages.

In an eighth aspect, an embodiment of the present application provides a first communication apparatus, which may be a terminal device, or may be an apparatus (for example, a chip, or a chip system, or a circuit) in a terminal device. The communication device includes: the transceiver unit is used for receiving a first configuration from the network equipment; wherein the first configuration comprises information of LTM candidate cells; and receiving a second configuration from the network device; wherein the second configuration comprises a first measurement configuration comprising a measurement object configuration; the processing unit is used for executing first actions aiming at a first cell if the detected first cell is not an LTM candidate cell according to the measurement object configuration; and/or if the first cell detected according to the measurement object configuration is an LTM candidate cell, not performing a first action for the first cell; wherein the first behavior comprises at least one of: and reporting the first measurement and the measurement result of the first measurement.

In some possible examples, the first configuration further includes first information or second information, the first information being for indicating: if the first cell is not an LTM candidate cell, performing a first action with respect to the first cell; and/or if the first cell is an LTM candidate cell, not performing the first action for the first cell; the second information is used to indicate that a first behavior is to be performed for the first cell.

In some possible examples, the first measurement includes a layer 3 measurement or RRM measurement.

In some possible examples, the first configuration further comprises a second measurement configuration, and the processing unit 1202 is further configured to perform the second measurement according to the second measurement configuration; wherein the second measurement comprises at least one of: layer 1 measurement, SSB measurement, CSI-RS measurement.

In some possible examples, the processing unit is specifically configured to perform a first behavior for the first cell according to the first measurement configuration; wherein the first measurement configuration further comprises at least one of: measurement identification, reporting configuration, measurement quantity configuration, measurement interval configuration and S measurement configuration.

In some possible examples, the processing unit is specifically configured to report the measurement result of the first measurement for the first cell if a timer of the measurement period expires or the measurement event satisfies a measurement report trigger condition.

It should be understood that the execution body of the eighth aspect may be a terminal device, and specific contents of the eighth aspect correspond to those of the first aspect, and corresponding features and achieved beneficial effects of the eighth aspect may refer to the description of the first aspect, and detailed descriptions are omitted herein as appropriate to avoid repetition.

In a ninth aspect, an embodiment of the present application provides a second communication apparatus, which may be a terminal device, or may be an apparatus (for example, a chip, or a chip system, or a circuit) in the terminal device. The communication device includes: the receiving and transmitting unit is used for receiving a third configuration from the network equipment; wherein the third configuration comprises a first list comprising at least one cell; and receiving a second configuration from the network device; wherein the second configuration comprises a first measurement configuration comprising a measurement object configuration; the processing unit is used for executing first actions aiming at the first cell if the detected first cell is not the cell in the first list according to the measurement object configuration; and/or if the first cell detected according to the measurement object configuration is a cell in the first list, not performing the first action for the first cell; wherein the first behavior comprises at least one of: and reporting the first measurement and the measurement result of the first measurement.

In some possible examples, the cells in the first list include LTM candidate cells.

In some possible examples, the processing unit is specifically configured to report a measurement result of performing the first measurement for the first cell if a timer of the measurement period expires or the measurement event satisfies a measurement report trigger condition.

It should be understood that the implementation body of the ninth aspect may be a terminal device, where specific details of the ninth aspect correspond to those of the second aspect, and corresponding features and achieved beneficial effects of the ninth aspect may refer to the description of the second aspect, and detailed descriptions are omitted here as appropriate to avoid repetition.

In a tenth aspect, an embodiment of the present application provides a third communication apparatus, which may be a terminal device, or may be an apparatus (for example, a chip, or a chip system, or a circuit) in a terminal device. The communication device includes: the receiving and transmitting unit is used for receiving a fourth configuration from the network equipment; the fourth configuration includes third information, where the third information indicates a measurement event type that allows or prohibits reporting of the measurement result.

In some possible examples, the third information includes a second list including at least one measurement event type.

In some possible examples, the transceiver unit is further to receive a second configuration from the network device; wherein the second configuration comprises a first measurement configuration comprising a measurement object configuration; the processing unit is used for reporting the measurement result when the measurement result of the first cell meets the measurement reporting triggering condition of the measurement event type allowing the measurement result to be reported if the first cell detected according to the measurement object configuration is an LTM candidate cell; and/or if the first cell detected according to the measurement object configuration is an LTM candidate cell, reporting measurement results of measurement events of the measurement event type for the first cell without restriction on newspaper licensing reporting the measurement results.

In some possible examples, the first measurement configuration further comprises a first measurement period, the transceiver unit further being for receiving a fifth configuration from the network device; wherein the fifth configuration comprises a second measurement period, the second measurement period being greater than the first measurement period; the processing unit is further configured to perform a first measurement for the first cell based on the second measurement period if the first cell is an LTM candidate cell; and/or if the first cell is not an LTM candidate cell, performing a first measurement for the first cell based on the first measurement period.

In some possible examples, the measurement result of the first cell includes a signal quality of the first cell, and the processing unit is further configured to determine that the signal quality of the first cell meets a measurement report trigger condition of a measurement event type that allows reporting of the measurement result if the signal quality of the first cell is less than a signal quality threshold.

It should be understood that the execution body of the tenth aspect may be a terminal device, and the specific content of the tenth aspect corresponds to the content of the third aspect, and the corresponding features and advantages achieved in the tenth aspect may refer to the description of the third aspect, and detailed descriptions are omitted herein as appropriate to avoid repetition.

In an eleventh aspect, an embodiment of the present application provides a fourth communication apparatus, where the communication apparatus may be a terminal device, or may be an apparatus (for example, a chip, or a chip system, or a circuit) in the terminal device. The communication device includes: the receiving and transmitting unit is used for receiving a second configuration from the network equipment; and receiving a fifth configuration from the network device; the processing unit is used for executing first measurement on the first cell based on a second measurement period by the terminal equipment if the detected first cell is an LTM candidate cell according to the measurement object configuration; and/or if the first cell detected according to the measurement object configuration is not an LTM candidate cell, the terminal device performs a first measurement for the first cell based on the first measurement period. Wherein the second configuration comprises a first measurement configuration comprising a measurement object configuration and a first measurement period. The fifth configuration includes a second measurement period, the second measurement period being greater than the first measurement period.

It should be understood that the execution body of the eleventh aspect may be a terminal device, and the specific content of the eleventh aspect corresponds to the content of the fourth aspect, and the corresponding features and achieved advantageous effects of the eleventh aspect may refer to the description of the fourth aspect, and detailed descriptions are omitted herein as appropriate to avoid repetition.

In a twelfth aspect, embodiments of the present application provide a fifth communications apparatus, which may be a network device, or may be an apparatus (e.g., a chip, or a system-on-chip, or a circuit) in a network device. The communication device includes: the receiving and transmitting unit is used for transmitting a third configuration to the network equipment; wherein the third configuration comprises a first list comprising at least one cell, the cells in the first list not performing a first action, the first action comprising at least one of: and reporting the first measurement and the measurement result of the first measurement.

It should be understood that the implementation body of the twelfth aspect may be a network device, and the specific content of the eleventh aspect corresponds to the content of the fifth aspect, and the corresponding features and the achieved beneficial effects of the twelfth aspect may refer to the description of the fifth aspect, and detailed descriptions are omitted herein as appropriate to avoid repetition.

In a thirteenth aspect, an embodiment of the present application provides a sixth communications apparatus, where the communications apparatus may be a network device, or may be an apparatus (e.g., a chip, or a system-on-chip, or a circuit) in a network device. The communication device includes: the receiving and transmitting unit is used for transmitting a fourth configuration to the network equipment; the fourth configuration includes third information, where the third information indicates a measurement event type that allows or prohibits triggering of reporting of the measurement result.

In some possible examples, the transceiver unit is further configured to send a second configuration to the terminal device; wherein the second configuration comprises a first measurement configuration comprising a measurement object configuration.

In some possible examples, the first measurement configuration further comprises a first measurement period, and the transceiver unit is further configured to send a fifth configuration to the terminal device; the fifth configuration includes a second measurement period, the second measurement period being greater than the first measurement period, the first measurement period being adapted for non-LTM candidate cells in the first cell detected according to the measurement object configuration, the second measurement period being adapted for LTM candidate cells in the first cell.

It should be understood that the implementation body of the thirteenth aspect may be a network device, where specific details of the thirteenth aspect correspond to those of the sixth aspect, and corresponding features and achieved beneficial effects of the thirteenth aspect may refer to the description of the sixth aspect, and detailed descriptions are omitted here as appropriate to avoid repetition.

In a fourteenth aspect, an embodiment of the present application provides a seventh communications apparatus, which may be a network device, or may be an apparatus (e.g., a chip, or a system-on-chip, or a circuit) in a network device. The communication device includes: the receiving and transmitting unit is used for transmitting the second configuration to the terminal equipment; transmitting a fifth configuration to the terminal device; wherein the second configuration comprises a first measurement configuration comprising a measurement object configuration and a first measurement period. The fifth configuration includes a second measurement period, the second measurement period being greater than the first measurement period. The first measurement period is applicable to non-LTM candidate cells in the first cell detected according to the measurement object configuration, and the second measurement period is applicable to LTM candidate cells in the first cell.

It should be understood that the implementation body of the fourteenth aspect may be a network device, and the specific content of the fourteenth aspect corresponds to the content of the seventh aspect, and the corresponding features and achieved beneficial effects of the fourteenth aspect may refer to the description of the seventh aspect, and detailed descriptions are omitted herein as appropriate to avoid repetition.

In a fifteenth aspect, an embodiment of the present application provides an eighth communication apparatus, which may be a terminal device, or may be an apparatus (for example, a chip, or a chip system, or a circuit) in the terminal device. The communications apparatus may comprise a processor and a storage medium storing instructions that, when executed by the processor, cause the communications method described in the first aspect, the second aspect, the third aspect, the fourth aspect or any one of the possible examples to be implemented.

In some possible examples, the communication device further comprises one or more of a memory and a transceiver for transceiving data and/or signaling.

In a sixteenth aspect, an embodiment of the present application provides an eighth communication apparatus, which may be a network device, or may be an apparatus (for example, a chip, or a system-on-chip, or a circuit) in a network device. The communications apparatus may comprise a processor and a storage medium storing instructions that, when executed by the processor, cause the communications method described in the fifth, sixth or seventh aspect or any one of the possible examples to be implemented.

In a seventeenth aspect, the present application provides a communication system comprising at least one terminal device and at least one network device for performing any one of the communication methods of the first to seventh aspects described above, when at least one of the aforementioned terminal devices and at least one of the aforementioned network devices are operating in the communication system.

In an eighteenth aspect, the present application provides a computer readable storage medium having instructions stored thereon which, when executed by a processor, cause the communication method of the first, second, third, fourth, fifth, sixth, seventh or any one of the above-mentioned possible example descriptions to be performed.

In a nineteenth aspect, the present application provides a computer program product comprising instructions which, when executed by a processor, cause the communication method described in the first, second, third, fourth, fifth, sixth, seventh or any one of the possible examples to be performed.

In a twentieth aspect, the present application provides another communication method including the communication method described in the first aspect, the second aspect, the third aspect, the fourth aspect, the fifth aspect, the sixth aspect, the seventh aspect or any one of the possible examples.

It should be understood that the implementation and advantages of the various aspects of the application described above may be referenced to one another.

Drawings

The drawings used in the embodiments of the present application are described below.

Fig. 1 is a schematic diagram of a network architecture according to an embodiment of the present application;

fig. 2 is a schematic diagram of a network architecture of a network device according to an embodiment of the present application;

FIG. 3A is a schematic diagram of a control plane protocol stack under a separation architecture of CU-DUs provided by an embodiment of the present application;

Fig. 3B is a schematic diagram of a protocol stack of a user plane under a separation architecture of CU-DUs provided in an embodiment of the present application;

fig. 4 is a flow chart of a layer 3 switching method according to an embodiment of the present application;

fig. 5 is a schematic flow chart of a method for switching L1/L2 between DUs in a CU according to an embodiment of the present application;

FIG. 6 is a schematic flow chart of a method for switching L1/L2 in DU in CU according to an embodiment of the present application;

Fig. 7 is a flow chart of a first communication method according to an embodiment of the present application;

fig. 8 is a flow chart of a second communication method according to an embodiment of the present application;

Fig. 9 is a flow chart of a third communication method according to an embodiment of the present application;

fig. 10 is a flow chart of a fourth communication method according to an embodiment of the present application;

fig. 11 is a flow chart of a fifth communication method according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of a first communication device according to an embodiment of the present application;

fig. 13 is a schematic structural diagram of a second communication device according to an embodiment of the present application;

Fig. 14 is a schematic structural diagram of a third communication device according to an embodiment of the present application;

fig. 15 is a schematic structural diagram of a terminal device according to an embodiment of the present application.

Detailed Description

An exemplary network architecture to which the embodiments of the present application are applicable is described below.

Referring to fig. 1, fig. 1 is a schematic diagram of a network architecture according to an embodiment of the application. As shown in fig. 1, the network architecture may include a terminal device 101, a network device 102, and a core network device 103. The terminal device 101 may be connected to the network device 102 in a wireless manner, and may access the core network device 103 through the network device 102. The terminal device 101 may be fixed in position or may be movable.

The technical scheme of the embodiment of the application can be applied to various communication systems, such as: global system for mobile communications (global system for mobile communication, GSM) system, code division multiple access (code division multiple access, CDMA) system, wideband code division multiple access (wideband code division multiple access, WCDMA) system, general packet radio service (GENERAL PACKET radio service, GPRS), long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD) system, universal mobile telecommunications (universal mobile telecommunications system, UMTS) system, enhanced data rates for GSM evolution (ENHANCED DATA RATE for GSM evolution, EDGE) system, worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX) system. The technical solution of the embodiment of the present application may also be applied to other communication systems, for example, a public land mobile network (public land mobile network, PLMN) system, an advanced long term evolution (LTE ADVANCED, LTE-a) system, a fifth generation (fifth generation, 5G) mobile communication technology, a new air interface technology (NR) system, a machine-to-machine communication (machine to machine, M2M) system, or other communication systems that evolve in the future, etc., which are not limited by the embodiment of the present application.

The terminal device 101 may be an entity on the user side for receiving or transmitting signals, such as a user equipment, an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. The terminal device may also be a mobile phone, a cellular phone, a cordless phone, a session initiation protocol (session initiationprotocol, SIP) phone, a tablet (Pad), a computer with wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal in an industrial control (industrial control), a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal DIGITAL ASSISTANT, PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wireless terminal in an unmanned (SELF DRIVING), a wireless terminal in a remote medical (remote medium), a wireless terminal in a smart grid (SMART GRID), a wireless terminal in a transportation security (transportation safety), a wireless terminal in a smart city (SMART CITY), a wireless terminal in a smart home (smart home), a wearable device (e.g. a smart watch, a smart bracelet, a pedometer, etc.), a terminal in a 5G network, or a future evolution (35) of the present application is not limited to this application. The terminal device may be deployed on land, including indoor or outdoor, hand-held, wearable or vehicle-mounted, on water surface (e.g., ship, etc.), or in air (e.g., airplane, balloon, satellite, etc.).

By way of example, and not limitation, in embodiments of the application, the terminal may also be a wearable device. The wearable device can also be called as a wearable intelligent device, and is a generic name for intelligently designing daily wear by applying wearable technology and developing wearable devices, such as glasses, gloves, watches, shoes and the like. The wearable device may be worn directly on the body or be a portable device integrated into the user's clothing or accessories. The wearable device is not only a hardware device, but also can realize a powerful function through software support, data interaction and cloud interaction. The generalized wearable intelligent device includes full functionality, large size, and may not rely on the smart phone to implement complete or partial functionality, such as: smart watches or smart glasses, etc., and focus on only certain types of application functions, and need to be used in combination with other devices, such as smart phones, for example, various smart bracelets, smart jewelry, etc. for physical sign monitoring. In addition, in the embodiment of the application, the terminal can also be a terminal in an internet of things (internet of things, ioT) system, and the IoT is an important component of the development of future information technology, and the main technical characteristics are that the object is connected with the network through a communication technology, so that the man-machine interconnection and the intelligent network of the object interconnection are realized. In the embodiment of the application, the IOT technology can achieve mass connection, deep coverage and terminal power saving through a Narrow Band (NB) technology, for example. In addition, in the embodiment of the application, the terminal can also comprise sensors such as an intelligent printer, a train detector, a gas station and the like, and the main functions comprise collecting data (part of the terminal), receiving control information and downlink data of the network equipment, sending electromagnetic waves and transmitting the uplink data to the network equipment.

The network device 102 may be an entity for transmitting or receiving signals, may be a device for communicating with a terminal device, may be a base station (base transceiver station, BTS) in a global system for mobile communications (global system for mobile communications, GSM) or code division multiple access (code division multiple access, CDMA), may be a base station (NodeB, NB) in a wideband code division multiple access (wideband code division multiple access, WCDMA) system, may be an evolved NodeB (eNB or eNodeB) in an LTE system, may be a wireless controller in the context of a cloud wireless access network (cloud radio access network, CRAN), or may be a network device in a relay station, an access point, a vehicle device, a wearable device, a 5G network, or a network device in a future evolved PLMN network, etc., and embodiments of the present application are not limited. The network device may be a device in a wireless network, such as a radio access network (radio access network, RAN) node that accesses the terminal to the wireless network. Currently, some examples of RAN nodes are: a base station, a next generation base station gNB, a transmission and reception point (transmission reception point, TRP), an evolved Node B (eNB), a home base station, a baseband unit (BBU), or an Access Point (AP) in a WiFi system, etc.

The network device may also be referred to as an access network device (radio access network, RAN), and may divide the protocol stack architecture and functionality of a conventional access network device into two parts, one part being referred to as a Centralized Unit (CU) and the other part being referred to as a Distributed Unit (DU), such network device may be referred to as a RAN device comprising CU nodes and DU nodes.

The splitting of CUs and DUs may be performed in a protocol stack, where one possible way is to deploy a radio resource control (radio resource control, RRC) layer, a service data mapping protocol (SERVICE DATA adaptation protocol, SDAP) layer, and a packet data convergence protocol (PACKET DATA convergence protocol, PDCP) layer at the CU, and the rest of the radio link control (radio link control, RLC) layer, medium access control (MEDIA ACCESS control, MAC) layer, and Physical (PHY) layer at the DUs.

Wherein one CU may be connected to one DU or one CU may be connected to a plurality of DUs, which may save costs and facilitate network expansion. That is, the access network device may be composed of one CU, and one or more DUs. The CU and the DU are connected through an F1 interface, and the CU and the core network are connected through a Next Generation (NG) interface.

Referring to fig. 2, fig. 2 is a schematic diagram of a network architecture of a network device according to an embodiment of the present application. In fig. 2, a 5G core network (5G core network,5GC) is used as a core network device and an NG-RAN is used as a network device. As shown in fig. 2, one or more gnbs may be included in the NG-RAN, where the gnbs and the 5GC may be connected through an NG interface, and the gnbs may be connected through an Xn-C interface. The gNB can be composed of one gNB-CU and one or more gNB-DUs, wherein an F1 interface is established between the gNB-CU and each gNB-DU, and an NG interface is established between the gNB-CU and the 5 GC.

Alternatively, a CU may be a separate form of User Plane (UP) (referred to herein simply as CU-UP) and Control Plane (CP) (referred to herein simply as CU-CP). That is, a CU may consist of a CU-CP and a CU-UP.

In a single air interface scenario, a terminal may access the CU through a DU, where RLC layer, MAC layer and PHY layer, which are peer to UE, are located on the DU, and PDCP layer, SDAP layer and PDCP layer, which are corresponding to UE, are located on the CU. The protocol stack of the control plane and the protocol stack of the user plane under the split architecture of the CU-DU are described below with reference to fig. 3A and 3B. Fig. 3A is a schematic diagram of a protocol stack of a control plane under a separation architecture of a CU-DU according to an embodiment of the present application, and fig. 3B is a schematic diagram of a protocol stack of a user plane under a separation architecture of a CU-DU according to an embodiment of the present application.

For the control plane, as shown in fig. 3A, a peer RRC layer and PDCP layer are established between the UE and the CU. The UE is connected with the DU through a user equipment (user equipment) interface (which can be called Uu interface), and a peer RLC layer, a MAC layer and a PHY layer are established between the UE and the DU; the DU and the CU are connected through an F1 control plane (F1-C) interface, and a peer-to-peer F1 application protocol (F1 application protocol, F1 AP) layer, a stream control transmission protocol (stream control transmission protocol, SCTP) layer, an Internet protocol (internet protocol, IP) layer, a layer 1 (layer 1, L1) layer 2 (layer 2, L2) layer is established between the DU and the CU. Among them, layer 1 may include a PHY layer, and layer 2 may include an RLC layer, a MAC layer, and a PDCP layer.

For the user plane, as shown in fig. 3B, a peer SDAP layer and PDCP layer are established between the UE and the CU. The UE is connected with the DU through a Uu interface, and a peer RLC layer, a MAC layer and a PHY layer are established between the UE and the DU; the DU and the CU are connected through an F1 user plane (F1-U) interface, and a peer-to-peer General Packet Radio Service (GPRS) tunnel protocol user plane (GPRS tunneling protocol-user plane, GTP-U) layer, a user datagram protocol (user datagram protocol, UDP) layer, an IP layer, a layer 1 and a layer 2 are established between the DU and the CU.

In the embodiment of the application, the terminal equipment or the network equipment comprises a hardware layer, an operating system layer running on the hardware layer and an application layer running on the operating system layer. The hardware layer includes hardware such as a central processing unit (central processing unit, CPU), a memory management unit (memory management unit, MMU), and a memory (also referred to as a main memory). The operating system may be any one or more computer operating systems that implement business processes through processes (processes), such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system. The application layer comprises applications such as a browser, an address book, word processing software, instant messaging software and the like. Further, the embodiment of the present application is not particularly limited to the specific structure of the execution body of the method provided by the embodiment of the present application, as long as the communication can be performed by the method provided according to the embodiment of the present application by running the program recorded with the code of the method provided by the embodiment of the present application, and for example, the execution body of the method provided by the embodiment of the present application may be a terminal device or a network device, or a functional module in the terminal device or the network device that can call the program and execute the program.

Furthermore, various aspects or features of the application may be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used herein encompasses a computer program accessible from any computer-readable device, carrier, or media. For example, computer-readable media may include, but are not limited to: magnetic storage devices (e.g., hard disk, floppy disk or tape, etc.), optical disks (e.g., compact Disk (CD), digital versatile disk (DIGITAL VERSATILE DISC, DVD), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memory (EPROM), card, stick, key drive, etc.). Additionally, various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" can include, without being limited to, wireless channels and various other media capable of storing, containing, and/or carrying instruction(s) and/or data.

It should be noted that the number and types of network devices, terminal devices and core network devices included in the network architecture shown in fig. 1 are merely examples, and embodiments of the present application are not limited thereto. For example, more or fewer terminal devices in communication with the network device may be included, e.g., more or fewer core network devices in communication with the network device may be included. For simplicity of description, it is not depicted in the drawings one by one. In addition, in the network architecture shown in fig. 1, although the network device, the terminal device, and the core network device are shown, the application scenario may not be limited to include the network device, the terminal device, and the core network device, for example, may further include a device for carrying a virtualized network function, which will be obvious to those skilled in the art, and will not be described in detail herein.

In order to facilitate understanding of the embodiments of the present application, definitions of technical terms that may appear in the embodiments of the present application are given below. The terminology used in the description of the embodiments of the application herein is for the purpose of describing particular embodiments of the application only and is not intended to be limiting of the application.

(1) The measurements can be classified into beam level measurements and cell level measurements. Where beam level measurements refer to information related to one or more beams by which the network may configure the UE to measure and report cells, e.g., beam identities and/or beam measurement results. Cell-level measurements refer to the UE taking an average of the measurement results (e.g., power values) by measuring one or more beams of a cell in accordance with the configuration of the network to obtain the cell measurement results. In the connected state, layer 1 filtering may be performed after the physical layer obtains beam quality. After layer 1 filtering, cell quality is obtained over multiple beams on the RRC layer, layer 3 filtering may be performed.

(A) Layer 1 measurement:

Layer 1 measurements are commonly referred to as beam level measurements. The beam level measurements include at least one of: synchronization signal and physical broadcast channel (physical boardcast channel, PBCH) block (synchronization SIGNAL AND PBCH block, SSB) measurements, channel state information reference signal (CHANNEL STATE information-REFERENCE SIGNAL, CSI-RS). Wherein, the SSB may be composed of three parts, namely a primary synchronization signal (primary synchronization signals, PSS), a secondary synchronization signal (secondary synchronization signals, SSS) and PBCH.

(B) Layer 3 measurement:

in some cases, layer 3 measurements refer to radio resource management (radio resource management, RRM) measurements. In some cases, the layer 3 measurement is a cell level measurement. In some cases, RRM measurements may be understood as layer 3 measurements.

(C) Measuring events:

The measurement event may include at least one of: a1 measurement event, A2 measurement event, A3 measurement event, A4 measurement event, A5 measurement event, B1 measurement event, and B2 measurement event. Wherein the triggering condition of the A1 measurement event is that the signal quality of the serving cell is above a threshold. Alternatively, the A1 measurement event may be used to turn off the measurement functions of certain cells. The triggering condition for the A2 measurement event is that the signal quality of the serving cell is below a threshold. Alternatively, in general, a handover or the like may occur after the A2 measurement event occurs, and may be used to turn on a measurement function of a cell that satisfies a trigger condition. The triggering condition of the A3 measurement event is that the quality of the co-frequency/inter-frequency neighbor cell is higher than the quality of the serving cell by an offset, and optionally, the A3 measurement event can be used to determine whether the terminal device is handed over to the neighbor cell. The triggering condition for the A4 measurement event is that the quality of the neighbor cell is above a threshold. The triggering condition for the A5 measurement event is that the quality of the serving cell is below a threshold and the quality of the neighbor cell is above a threshold. The triggering condition for the A6 measurement event is that the neighbor cell is higher than the serving cell (e.g., scell) by an offset. The triggering condition of the B1 measurement event is that the quality of the neighboring cells of the different system is higher than the threshold of the serving cell. The triggering condition of the B2 measurement event is that the serving cell quality is below threshold 1 and the inter-system neighbor cell quality is above threshold 2. The application is not limited to the measurement event, the size of each threshold (threshold) related in the measurement event and the measurement report triggering condition for reporting the measurement result of the measurement event. The measurement report trigger may be a periodic trigger or an event trigger.

(2) The handover is to ensure continuity of service, and the change of a serving cell that occurs during the movement of the UE in the RRC connected state may also be referred to as mobility. Referring to fig. 4, fig. 4 is a flow chart of a switching method according to an embodiment of the application. One possible implementation, the handover may be accomplished by layer 3 (RRC layer) control. As shown in fig. 4, the handover method may include the following steps S400 to S408, in which:

Step S400: the source base station sends a measurement configuration to the UE.

Alternatively, the measurement is configured as a layer 3 measurement. The layer 3 measurement configuration may be generated by the CU, wherein the layer 3 measurement configuration may be configured to the UE by measConfig. The layer 3 measurement configuration may include the following parameters: a measurement object (measurement objective, MO), a reporting configuration (reporting configuration), a measurement identity (measurement identities), a measurement configuration (quantity configuration), a measurement interval configuration (measurement gap), and an S-measurement, wherein:

1. The MO parameter may provide an object list for which the UE needs to perform measurements. Layer 3 measurements may be performed at per MO granularity. That is, for the MO-associated frequency point, the L3 measurement configuration of all cells on that frequency point is the same. For NR MO, the UE measures and reports the serving cell, the listed cells and/or the measured results of the detected cells.

The network device may configure an MO with a list of classes 3 as follows, wherein:

A first category, a cell-related list, which may contain cell identities and cell-specific offsets for event-triggered reporting.

Second, a blacklist of cells (blacklisted cell), cells within the blacklist cannot be used for event evaluation or measurement reporting.

Third, a white list of cells (WHITELISTED CELL), which are cells that are only available for use in event evaluation or measurement reporting.

2. The reporting configuration parameters may provide a list of reporting configurations, and each MO may have one or more reporting configurations. Each reporting configuration includes reporting criteria for triggering the UE to send a measurement report, a reference signal (REFERENCE SIGNAL, RS) type that the UE can use for beam and cell measurement, and a reporting format.

The reporting criteria for triggering the UE to send the measurement report may be a periodic trigger or may be a single event trigger. For example, the triggered event may satisfy the triggering condition of the aforementioned measurement event. The reporting criteria may alternatively be a global cell identity (cell global identifier, CGI) report (reportCGI) or a system frame number (SYSTEM FRAME number, SFN) and frame boundary timing difference report (SFN AND FRAME TIMING DIFFERENCE, REPORTSFTD). The reportCGI is used to detect the CGI of a cell. reportSFTD are used to detect SFN versus frame boundary timing difference results between the primary cell (PRIMARY CELL, PCell) and the target cell.

The RS type may include SSB or CSI-RS, etc.

The reporting format is used to indicate the measurement quantity type (e.g., RSRP, reference signal quality (RSRQ), etc.) per cell and per beam contained in the measurement report by the UE, as well as other relevant information (e.g., the maximum number of cells that can be reported and the maximum number of beams per cell, etc.).

3. The measurement identity parameter provides a list of measurement identities, wherein each measurement identity is associated with an MO with a reporting configuration. By configuring multiple measurement identities, it may be achieved that multiple MOs are associated to the same reporting configuration, or that multiple reporting configurations may be associated to the same MO. The UE may include the corresponding measurement identifier in the measurement report triggered and reported as a reference to the network.

4. The measurement configuration parameters define the measurement filter configuration for event triggered and periodically reported measurements.

5. The measurement interval configuration parameter represents a period of time that the UE may be used to perform measurements.

6. The S measurement parameter provides threshold control of the quality of the NR serving cell SpCell and may comprise a threshold value associated with the quality of the NR SpCell. For example, after configuring the S measurement, the UE may initiate a measurement of the non-serving cell when the quality of the SpCell is below a set threshold.

Step S401: the UE sends a measurement report to the source base station.

Optionally, the measurement report in step S401 is a layer 3 measurement report or a layer 3 measurement result. The layer 3 measurement report may include the signal quality of the serving cell and the neighbor cells.

Step S402: the source base station performs a handover decision.

The source base station may make a handover decision based on the measurement results of the layer 3 measurement report and/or its own handover algorithm. For example, the signal quality of the source cell is poor, but the signal quality of the target cell is good, the base station may decide to trigger a handover.

Step S403: the source base station sends a handover request to the target base station.

If the source base station decides to trigger the handover, the source base station sends a handover request to the target cell. The handover request may include a target cell Identifier (ID), a key, an ID of the UE in the source cell, configuration of the access layer, and the like.

Step S404: the target base station performs admission control.

Admission control may be performed by the target base station. If the slice information is transmitted to the target base station, slice aware admission control should be performed. If a protocol data unit (protocol data unit, PDU) session is associated with an unsupported slice, the target base station should reject such PDU session.

Step S405: the target base station sends a handover request confirm message to the source base station.

The handover request acknowledgement message may be included in the acknowledgement message in the form of an RRC container (RRC container).

Step S406: and the source base station sends a switching command to the UE.

The handover command may be sent through an RRC reconfiguration message, where the handover command may include information needed for accessing the target cell, and at least include a target cell identifier, a new UE ID, a security algorithm identifier of the target base station, and possibly a dedicated Random Access Channel (RACH) resource for accessing the target cell.

Optionally, after receiving the handover command, the UE disconnects from the source cell.

Step S407: the UE performs a synchronization procedure with the target base station.

The synchronization process may be implemented through a RACH process to access to the target cell, and the subsequent UE may perform data transmission with the target cell.

Step S408: the UE sends an RRC reconfiguration complete message to the target cell.

The RRC reconfiguration complete message may be used to confirm successful completion of the RRC reconfiguration procedure.

(3) Layer1 and/or Layer2 (Layer 1/Layer2, L1/L2) switching is a switching method for reducing switching delay and interruption time and improving user experience of terminal equipment and continuity of service. The L1/L2 handover may trigger the terminal device to perform the handover through L1 signaling (e.g., downlink control information (downlink control information, DCI)) and/or L2 signaling (e.g., medium access control layer control element (medium access control control element, MAC CE)).

L1/L2 handover may also be referred to as a lower layer handover, or layer 1 and/or layer 2triggered mobility (L1/L2 TRIGGERED MOBILITY, LTM) or lower layer triggered handover. The main ideas of the LTM process are: the base station configures one or more candidate cells based on a measurement report (e.g., RRM measurement report or Layer 3 (L3) measurement report) reported by the UE, and provides the UE with pre-configuration information of the one or more candidate cells (may be referred to as LTM candidate cells) through an RRC message. After receiving the preconfiguration information from the base station, the UE sends a measurement report (e.g., layer 1 measurement report) to the base station, and the source DU decides to trigger LTM handover based on the measurement report reported by the UE. The source DU transmits an LTM handover command to the UE through layer 1 signaling and/or layer 2 signaling to cause the UE to perform a handover procedure.

The LTM procedure is a handover procedure that may be within the same CU. The LTM procedure includes a variety of handover scenarios, the following exemplary list of which is given below:

Scene one: inter-DU (intra-CU inter-DU) LTM procedure within a CU.

Referring to fig. 5, fig. 5 is a schematic flow chart of an inter-DU LTM procedure in a CU according to an embodiment of the application, where a source DU and a target DU in the LTM handover procedure are different DUs. As shown in fig. 5, the inter-DU L1/L2 handover method in the CU may include the following steps S500 to S511, wherein:

Step S500: the CU sends the measurement configuration to the UE.

Alternatively, the measurement configuration may be a layer 3 measurement configuration, and the description of step S400 may be referred to, which is not described herein.

Step S501: the UE reports the first measurement report.

Optionally, the UE reports the first measurement report to the CU. Wherein the first measurement report may be a layer 3 measurement report. The measurement result in the first measurement report may be measured according to the measurement configuration in step S500.

Step S502: the CU makes a handover decision.

Step S503: the CU sends a UE context setup request to the DU.

If the CU decides to perform the LTM procedure, the CU requests an LTM from one or more candidate cells belonging to one or more candidate DUs. The CU may send a UE context setup request message to the candidate cell or may send an LTM request message. Optionally, the CU may determine the candidate cells to add with reference to measurement reports reported by the UE and/or a self-handover algorithm.

Step S504: the candidate DUs perform admission control.

Step S505: the candidate DU sends a UE context request acknowledgement message to the CU.

If the candidate DU decides to add the LTM candidate cell, the candidate DU may send a UE context establishment request confirm message, or an LTM request confirm message, to the CU. Wherein the UE context setup request confirm message may include configuration information of the candidate cell.

Step S506: the CU sends an RRC reconfiguration message to the UE.

The RRC reconfiguration message includes LTM configuration information. The LTM configuration information may also be referred to as L1/L2 handover (pre) configuration information or LTM candidate cell configuration information, etc. The LTM configuration information may comprise (pre) configuration information of one or more candidate cells (which may be referred to herein as LTM candidate cells). Optionally, the configuration information of the candidate cell is configured by cell group configuration or RRC reconfiguration. Optionally, the RRC reconfiguration message may further include configuration information of the source cell, or may include an L1 measurement configuration or a layer 1 measurement reporting configuration. The UE does not disconnect from the source cell after receiving the RRC reconfiguration message.

Step S507: the UE transmits an RRC reconfiguration complete message.

Optionally, the UE sends an RRC reconfiguration complete message to the CU. Wherein the RRC reconfiguration complete message may be sent to the source cell in the source DU. The RRC reconfiguration complete is used to indicate that the RRC reconfiguration message has been successfully received.

Step S508: and the UE reports a second measurement report.

Optionally, the UE sends a second measurement report to the source DU. The second measurement report may include an L1 measurement report, and the second measurement report may be measured based on the L1 measurement configuration in step S506.

Step S509: the source DU sends a handover command to the UE.

The source DU may make a handover decision based on a second measurement result reported by the UE. If the source DU decides to trigger the LTM procedure, a handover command may be sent to the UE. Accordingly, the UE receives a handover command from the source DU. The handover command may be an LTM handover command, or referred to as an L1/L2 handover command, or referred to as an LMT cell handover command, and the names are not limited herein by way of example only. The handover command may be carried in MAC layer signaling (MAC CE) or physical layer signaling (DCI). The LTM handover command is used to indicate information of a target cell for handover of the UE, such as a target cell index, or a target cell PCI, (the target cell may be included in the candidate cell described above), or configuration information of the target cell. Optionally, the LTM switch command may further include beam information.

Step S510: the UE performs an access procedure to the target cell.

Optionally, the UE performs a synchronization procedure with the target DU. The synchronization procedure may be implemented through a RACH procedure.

The access procedure may be implemented through a RACH procedure or through RACH-less. For example, after receiving the handover command, the UE performs a random access procedure to the target cell, or if the UE has acquired a timing advance before receiving the handover command, the UE sends a handover complete acknowledgement to the target cell on a preconfigured resource after receiving the handover command. The UE can initiate access to a target DU where the target cell is based on the target cell indicated in the L1/L2 switching command, and the subsequent UE can transmit data with the target cell.

Optionally, step S511: the UE sends a handover complete message to the target DU.

The handover complete message may be sent to the target cell indicated in the L1/L2 handover command.

Scene II: intra-DU (intra-CU intra-DU) LTM procedure within a CU.

Referring to fig. 6, fig. 6 is a flowchart illustrating an LTM procedure in a DU in a CU according to an embodiment of the present application, where a source DU and a target DU in the LTM switching procedure are the same DU. As shown in fig. 6, the intra-DU L1/L2 handover method in the CU may include the following steps S600 to S610, wherein:

Step S600: the CU sends the measurement configuration to the UE.

The measurement configuration may be a layer 3 measurement configuration, and the description of step S400 may be referred to, which is not repeated herein.

Step S601: the UE reports the first measurement report.

Optionally, the UE sends a first measurement report to the CU.

Wherein the first measurement report may be a layer 3 measurement report. The measurement result in the first measurement report may be measured according to the measurement configuration in step S600.

Step S602: the CU sends a UE context modification request message to the DU.

Wherein the UE context modification request may be used to obtain modified UE context information. Optionally, the CU may determine candidate cells to be added according to a measurement report reported by the UE and/or a self-handover algorithm.

Step S603: the DU performs admission control.

If the DU allows UE access, step S604 may be performed: the DU sends a UE context modification request acknowledgement message to the CU. Optionally, the DU sends an LTM request acknowledge message to the CU. The UE context modification request acknowledgement message may include configuration information of the candidate cell.

Step S605: the CU sends an RRC reconfiguration message to the UE.

Step S606: the UE transmits an RRC reconfiguration complete message.

Optionally, the UE sends an RRC reconfiguration complete message to the CU.

Step S607: and the UE reports a second measurement report.

Optionally, the UE sends a second measurement report to the DU.

Step S608: the DU sends a handover command to the UE.

Step S609: the UE performs an access procedure to the target cell.

Optionally, step S610: the UE sends a handover complete message to the target DU.

The descriptions of step S603 to step S610 refer to step S504 and step S511 in fig. 5, respectively, and are not repeated here.

For cells configured as LTM candidate cells, the UE needs to perform layer 1 measurements on these cells. If the UE also needs to perform layer 3 measurements on these cells, since the layer 1 measurement is a beam level measurement and the layer 3 measurement is a cell level measurement, the UE reports a measurement report containing the measurement result, and the target cell for triggering handover based on the layer 1 measurement report and the layer 3 measurement report may be different, which may cause frequent handover and affect LTM handover performance. For example, the base station may first handover the UE from cell 1 to cell 2 based on the layer 1 measurements. The base station may then also determine that the signal quality of cell 1 is higher than the signal quality of cell 2 based on the layer 3 measurements, thereby switching the UE from cell 2 back to cell 1 through the layer 3 handover, resulting in frequent ping-pong handovers. In addition, if the network does not trigger layer 3 handover for the measurement results of the cells of the LTM, the UE may not be useful to the network to report the measurement results of layer 3, the UE may report that air interface resources are wasted by transmitting the cell-related layer 3 measurement reports, and the processing load of the base station may be increased by the network to process the layer 3 measurement reports.

Based on the above, the present application proposes a communication method, which will be described below by the following embodiments, respectively. Some of these communication methods are directed to only a portion of the procedures in a cell switch, and some may be applied to any one or more of the procedures in a cell switch. It should be appreciated that these communication methods may be used in conjunction with one another, for example, one method may be used by one flow in a cell handover and another method may be used by another flow in a cell handover, or both.

It should be understood that the cell handover may change with the evolution of the technical solution, and the technical solution provided by the present application is not limited to the process described below. Further, the description of the scene in the embodiment of the present application is only an example, and the scheme of the embodiment of the present application is not limited to be applied only to describing the scene, and is also applicable to the scene with similar problems.

The terminal device in the embodiments of the present application (e.g., the embodiments corresponding to fig. 7-11 below) may be a terminal device in the network architecture shown in fig. 1, and the functions performed by the terminal device in this embodiment may be performed by an apparatus (e.g., a chip, or a chip system, or a circuit) in the terminal device. The network device in this embodiment may be the network device in the network architecture shown in fig. 1, and the functions performed by the network device in this embodiment may be performed by an apparatus (e.g., a chip, or a chip system, or a circuit) in the network device. The embodiments of the present application are described herein in a unified manner, and will not be described in detail later.

In combination with the above network architecture, a communication method provided by the embodiment of the present application is described below. Referring to fig. 7, fig. 7 is a flowchart of a first communication method according to an embodiment of the application. As shown in fig. 7, the communication method may include steps S701 to S703, wherein:

Step S701: the network equipment sends a first configuration to the terminal equipment; wherein the first configuration includes information of the LTM candidate cell.

Accordingly, the terminal device receives the first configuration from the network device.

In the embodiment of the present application, the first configuration may be included in an RRC message, for example, an RRC reconfiguration message, and the RRC reconfiguration message may refer to the description of step S504, which is not described herein. The first configuration includes information of LTM candidate cells, which may be determined by the network device from measurement reports (e.g., layer 3 measurement reports, etc.) reported by the terminal device. The application does not limit the number of the LTM candidate cells and the information of the LTM candidate cells, and the number of the LTM candidate cells can be one or a plurality of the LTM candidate cells. The information of the LTM candidate cell may include a physical cell identity (PHYSICAL CELL IDENTITIES, PCI) of the LTM candidate cell, and may further include configuration information of the LTM candidate cell.

Step S702: the network equipment sends a second configuration to the terminal equipment; wherein the second configuration comprises a first measurement configuration comprising a measurement object configuration.

Accordingly, the terminal device receives the second configuration from the network device.

In an embodiment of the present application, the second configuration may be included in an RRC message, for example, an RRC reconfiguration message. The first configuration and the second configuration may be contained in the same RRC message or may be contained in different RRC messages. The second configuration includes a first measurement configuration, which may be configuration information for the first measurement. The present application is not limited to the type of the first measurement and the content of the first measurement configuration. The first measurement may be a layer 3 measurement or may be an RRM measurement. The first measurement configuration may include a measurement object configuration, which may include parameters of the measurement object, for example, frequency point information of the measurement object, so that the terminal device may scan measurement results of the measurement object (cell) to be measured based on the frequency point information.

The first measurement may further include parameters such as a measurement identifier, a reporting configuration, a measurement quantity configuration, a measurement interval configuration, and an S measurement configuration. The reporting configuration may include configuration information of measurement events to be reported, where the measurement events may include the foregoing A1 measurement event to A6 measurement event, B1 measurement event, B2 measurement event, and so on. The reporting types of the measurement event may include periodic reporting and event reporting, where periodic reporting refers to that the terminal device triggers measurement reporting when a timer of the measurement period expires. The timer may count or count down based on a time threshold set in advance for the measurement period, and the timer acknowledging the measurement period times out when the counted time is the time threshold or when the counted down time is 0. The event reporting refers to reporting a measurement result by the terminal device when the measurement result meets a measurement reporting trigger condition of a measurement event. The event type reported measurement reporting event may include at least one of the following: a1 measurement event, A2 measurement event, A3 measurement event, A4 measurement event, A5 measurement event, B1 measurement event, B2 measurement event.

The A1 measurement event is exemplified, the triggering condition of the A1 measurement event is that the signal quality of the serving cell is higher than the signal quality threshold, the measurement reporting triggering condition is that the triggering condition of the A1 measurement event is satisfied, and the duration exceeds the time threshold. And if the duration that the signal quality of the cell A is higher than the signal quality threshold exceeds the time threshold, reporting the measurement result of the cell A. If the signal quality of the cell A is higher than the duration of the signal quality threshold and the time threshold is not exceeded, the measurement result of the cell A is not reported. The measurement results of cell a may be added to the triggered cell list before reporting the measurement results of cell a. After reporting the measurement result of the cell a, if the duration that the signal quality of the cell a is lower than the signal quality threshold exceeds the time threshold, the cell a in the trigger cell list may be deleted.

Optionally, the measurement report triggering condition may include triggering conditions of the foregoing various measurement report events, and may further include other triggering conditions, for example, whether the measurement object in the first measurement configuration is a preset object, and specifically, whether the measurement cell is an LTM candidate cell; measuring whether a triggering event of a cell is a target event; measurement periods defined for different cells, etc., as the present application is not limited in this regard.

Step S703: if the first cell detected according to the measurement object configuration is an LTM candidate cell, the terminal device does not perform the first action with respect to the first cell.

Wherein the first behavior comprises at least one of: first measurement, reporting of measurement report of the first measurement. Alternatively, the first measurement is a layer 3 measurement and the measurement report of the first measurement may be a layer 3 measurement report. The first measurement is an RRM measurement and the measurement report of the first measurement may be an RRM measurement report.

The terminal device may detect the first cell according to the relevant parameter in the measurement object configuration, for example, the terminal device detects the first cell according to the frequency point information in the measurement object configuration in step S702, and the terminal device determines whether the first cell is an LTM candidate cell according to the information of the LTM candidate cell configured in step S701. The first measurement and the reporting configuration of the first measurement may refer to the description of step S702, and are not described herein. The terminal device not performing the first behaviour with respect to the first cell may be understood as the first behaviour being not applicable to LTM candidate cells in the first cell. In an implementation manner of the terminal device, if the first cell detected by the terminal device is an LTM candidate cell, the terminal device may not correlate the PCI of the first cell, so that the first measurement is not performed, and a measurement result of the first measurement is not reported.

In the communication method shown in fig. 7, the terminal device receives the first configuration and the second configuration from the network device, and if the first cell detected from the measurement object configuration in the second configuration is an LTM candidate cell, the terminal device does not perform the first action for the first cell. Thus, for the LTM candidate cell, the first action may not be performed, so that the first measurement may not be performed on the LTM candidate cell, or a measurement result for the first measurement of the LTM candidate cell may not be reported, frequent handover may be avoided, and LTM handover performance may be improved.

Referring to fig. 8 in conjunction with the embodiment of fig. 7, fig. 8 is a flow chart of a second communication method according to an embodiment of the present application. It should be understood that the terms used in the various embodiments of the application may be mutually referenced, and that the same terms may not be repeated for the different embodiments to avoid redundancy in description. As shown in fig. 8, the communication method may include S801 to S803, wherein:

step S801: the network equipment sends a first configuration to the terminal equipment; wherein the first configuration includes information of the LTM candidate cell.

Step S802: the network equipment sends a second configuration to the terminal equipment; wherein the second configuration comprises a first measurement configuration comprising a measurement object configuration.

Step S803: if the first cell detected according to the measurement object configuration is not an LTM candidate cell, the terminal device performs a first action with respect to the first cell.

Wherein the first behavior comprises at least one of: first measurement, reporting of measurement report of the first measurement. Step S801 may refer to the description of step S701, and step S802 may refer to the description of step S702, which will not be described herein. In the embodiment of the present application, a cell that is not an LTM candidate cell may be referred to as a non-LTM candidate cell, but is not limited thereto.

In the communication method shown in fig. 8, the terminal device receives the first configuration and the second configuration from the network device, and if the first cell detected from the measurement object configuration in the second configuration is not an LTM candidate cell, the first behavior may be performed for the first cell. Thus, for the non-LTM candidate cell, the first action can be executed, so that the non-LTM candidate cell can be subjected to first measurement, the measurement result of the first measurement of the non-LTM candidate cell can be reported, the network equipment can trigger the layer 3 handover based on the reported measurement result of the cell, the handover performance is improved, and the communication quality of the terminal equipment is improved. In addition, compared with the prior art, the method and the device have the advantages that the first measurement is not performed on the LTM candidate cells in the cells detected based on the measurement object, the measurement report of the first measurement of the candidate cells is not reported, and the first behavior is only performed on the first cells which do not belong to the LTM candidate cells, so that frequent ping-pong switching can be avoided, and the LTM switching performance is improved.

In some possible examples, after step S802, it may further include: if the first cell detected according to the measurement object configuration is an LTM candidate cell, the terminal device does not perform the first action with respect to the first cell. In this way, the first action may not be performed on the LTM candidate cell while the measurement result of the non-LTM candidate cell is reported, so that the first measurement may not be performed on the LTM candidate cell, or the measurement result of the first measurement on the LTM candidate cell may not be reported, frequent ping-pong handover may be avoided, and the LTM handover performance may be improved.

In some possible examples, the first configuration may further include first information or second information. The first information and the second information may be contained in the same indication. For example, one of the first information and the second information is included in the first indication, which may be understood as the first indication indicating the first information or the second information. For example, the first indication is 1 bit of indication information, the value of the first indication may be 0 or 1, the first indication is indicated to be used for indicating the first information when the value of the first indication is 0, and the first indication is indicated to be used for indicating the second information when the value of the first indication is 1; or when the value of the first indication is 1, the first indication is used for indicating the first information, and when the value of the first indication is 0, the first indication is used for indicating the second information. The first indication may be true or false, and indicates that the first indication is used for indicating the first information when the value of the first indication is true, and indicates that the first indication is used for indicating the second information when the value of the first indication is flase; or the first indication is used for indicating the first information when the value of the first indication is false, and the first indication is used for indicating the second information when the value of the first indication is true, and the like.

The first information is used for indicating: if the first cell is not an LTM candidate cell, performing a first action with respect to the first cell; and/or if the first cell is an LTM candidate cell, not performing the first action for the first cell. That is, the first information is used to instruct the terminal device to perform the first action for the first cell that is not the LTM candidate cell, or is also used to instruct the terminal device not to perform the first action for the first cell that is the LTM candidate cell. It is understood that the first information is used to instruct the terminal device to perform step S703 and/or step S803.

The second information is used to indicate that a first behavior is to be performed for the first cell. That is, the first behavior may be performed with respect to the first cell, whether or not the first cell is an LTM candidate cell. It is understood that the second information is used to instruct the terminal device not to perform step S703 and step S803, and that the terminal device performs the first behavior according to the existing method. By performing the first information, compared to performing the second information in the related art, the first behavior is not performed for the LTM candidate cell among the cells detected based on the measurement object, so that frequent ping-pong handover can be avoided, and LTM handover performance is improved.

In some possible examples, the first configuration may further include a second measurement configuration, and the communication methods shown in fig. 7 and 8 may further include: the terminal device performs the second measurement according to the second measurement configuration.

Wherein the second measurement configuration may be understood as configuration information for the second measurement. The present application is not limited to the type of the second measurement and the content of the second measurement configuration, and the second measurement may include at least one of: layer 1 measurement, SSB measurement, CSI-RS measurement. The second measurement configuration may include one or more of the following: measurement period, measurement resources (e.g., SSB or CSI-RS), measurement volume configuration, measurement interval, measurement identity, S measurement configuration.

In some possible examples, the terminal device performing the first action for the first cell may include: the terminal device performs a first behavior for the first cell according to the first measurement configuration.

Wherein the first measurement configuration may further comprise at least one of: measurement identification, reporting configuration, measurement quantity configuration, measurement interval configuration, S configuration and other parameters. It will be appreciated that performing the first behavior based on the parameters in the first measurement configuration may improve accuracy in performing the first behavior, which may be beneficial for improving handover performance.

The reporting of the measurement report of the first measurement needs to satisfy that the first cell is an LTM candidate cell, and may also be performed based on a reporting configuration of the first measurement. For example, in some possible examples, performing the first action for the first cell may include: if the timer of the measurement period is overtime or the measurement event meets the measurement report triggering condition, the terminal equipment reports the measurement result of the first measurement aiming at the first cell. That is, if the timer of the measurement period expires in the case where the first cell is a non-LTM candidate cell, the first action, i.e., reporting the measurement result of the first measurement for the first cell, may be performed. Or, if the measurement event satisfies the measurement report triggering condition, the first action may be executed, that is, the measurement result of the first measurement is reported for the first cell, where the first cell is a non-LTM candidate cell. Therefore, when the timer of the measurement period is overtime or the measurement event meets the measurement report triggering condition, the measurement result of the first measurement of the non-LTM candidate cell is reported, and the network equipment can trigger layer 3 switching based on the reported measurement results of the cells, so that the switching performance is ensured.

Referring to fig. 9 in conjunction with the above network architecture, fig. 9 is a flow chart of a third communication method according to an embodiment of the present application. It should be understood that the terms used in the various embodiments of the application may be mutually referenced, and that the same terms may not be repeated for the different embodiments to avoid redundancy in description. As shown in fig. 9, the communication method may include S901 to S904, in which:

step S901: the network equipment sends a third configuration to the terminal equipment; wherein the third configuration comprises a first list comprising at least one cell.

Accordingly, the terminal device receives the third configuration from the network device.

Wherein the third configuration and the first configuration may be contained in the same message, or the third configuration and the first configuration may be contained in different messages. The cells in the first list do not perform the first actions, which include the first measurements and/or reporting of measurement results of the first measurements. The cells in the first list include LTM candidate cells. The LTM candidate cells herein may be all LTM candidate cells or may include a part of LTM candidate cells. In one example, the cells in the first list include part of the candidate cells. It can be appreciated that reporting the measurement result of the first measurement of the cell of the portion may save power consumption and air interface resources.

It should be appreciated that the first list may be two separate lists from the blacklisted cell list. The cells listed in the black list are used to prohibit the terminal device from performing the first measurement on the cells, and the cells in the black list may include LTM cells and may also include non-LTM cells. And the cells in the first list are configured to inhibit the first action from being performed, where the first list includes some or all of the LTM candidate cells. For a cell configured as in the first list, the terminal device will not perform a first measurement on the cell, and the terminal device may perform a second measurement for the LTM handover.

Step S902: the network equipment sends a second configuration to the terminal equipment; wherein the second configuration comprises a first measurement configuration comprising a measurement object configuration.

Accordingly, the terminal device receives the second configuration from the network device. The second configuration may refer to the description of step S701, and will not be described here.

Optionally, step S903: the terminal device detects a first cell according to the measurement object configuration.

Step S904: the terminal device performs a first action according to the first list.

Optionally, the terminal device determines whether the first cell is a cell in the first list. The terminal device executes the first behavior according to the first list, by one of the following implementation manners:

mode 1: if the first cell is not a cell in the first list, the terminal device performs a first action for the first cell, and if the first cell is a cell in the first list, the terminal device does not perform the first action for the first cell;

Mode 2: if the first cell is not a cell in the first list, the terminal device performs a first action for the first cell. It is understood that the terminal device performs the first behavior only for cells not belonging to the first list;

mode 3: if the first cell is a cell in the first list, the terminal device does not perform the first action for the first cell.

In the communication method shown in fig. 9, the terminal device receives the second configuration and the third configuration from the network device, and if the first cell detected from the measurement object configuration in the second configuration is a cell in the first list in the third configuration, the terminal device may not perform the first action with respect to the first cell. If the first cell is not a cell in the first list, a first action may be performed with respect to the first cell. In this way, the network device can configure the cells of the terminal device which do not execute the first behavior through the list, and the flexibility of configuration is improved through the network configuration mode. The terminal device executes the first behavior according to the first measurement configuration and the first list of the network configuration, and does not execute the first behavior aiming at partial LTM candidate cells, so that the measurement power consumption of the terminal device is reduced, and the air interface resource for measurement reporting is saved. In addition, in some network deployments, the network device needs to perform functions such as carrier management or LTM candidate cell management, or may configure LTM candidate cells that do not belong to the first list, so that the terminal device performs first measurement on the LTM candidate cells that do not belong to the first list, thereby implementing a cell management or carrier management function.

Referring to fig. 10 in conjunction with the above network architecture, fig. 10 is a flow chart of a fourth communication method according to an embodiment of the present application. It should be understood that the terms used in the various embodiments of the application may be mutually referenced, and that the same terms may not be repeated for the different embodiments to avoid redundancy in description. As shown in fig. 10, the communication method may include S1001 in which:

Step S1001: the network equipment sends a fourth configuration to the terminal equipment; the fourth configuration includes third information, where the third information indicates a measurement event type that allows or prohibits reporting of the measurement result.

Accordingly, the terminal device receives a fourth configuration from the network device.

Wherein the fourth configuration and the first configuration may be contained in the same message or the fourth configuration and the first configuration may be contained in different messages. The fourth configuration may include third information, which may be used to indicate a measurement event type that allows reporting of measurement results, or to indicate a measurement event type that prohibits reporting of measurement results. The third information may include a second list including at least one measurement event type. If the measurement event type included in the second list is a measurement event type allowing the measurement result to be reported, the third information is used for indicating the measurement event type allowing the measurement result to be reported. And if the measurement event type included in the second list is the measurement event type for prohibiting the measurement result from being reported, the third information is used for indicating the measurement event type for prohibiting the measurement result from being reported.

The application is not limited to the type of the measurement event which allows or prohibits the report of the measurement result, and can be the measurement event type of the measurement event. For example, the measurement event type allowing the measurement result to report is the measurement event type of the A1 measurement event, the measurement event type prohibiting the measurement result to report is the measurement event type of the A3 measurement event, and so on. Thus, when the measurement result of the A1 measurement event meets the measurement report trigger condition of the A1 measurement event, and when the trigger condition of the A3 measurement event meets the measurement report trigger condition of the A3 measurement event, the measurement result obtained by the A3 measurement event is not reported.

In some possible examples, the method may further comprise the steps of: when the measurement result of the first cell meets a measurement report triggering condition of a measurement event type allowing the measurement result to be reported, reporting the measurement result; and/or when the measurement result of the first cell meets the measurement report triggering condition of the measurement event type which prohibits the report of the measurement result, not reporting the measurement result.

The first cell is a cell which is detected according to the measurement object configuration.

In one understanding, the third information may be applicable to any cell. Or in the case that the measurement event type included in the second list is a measurement event type allowing the measurement result to be reported, the third information is applicable to the first cell; or in case the measurement event type included in the second list is a measurement event type prohibiting reporting of the measurement result, the third information is not applicable to the first cell. Or in another understanding, in the case that the measurement event type included in the second list is a measurement event type that allows reporting of the measurement result, the measurement event in the second list is applicable to the first cell; or the measurement event type included in the second list is a measurement event type for prohibiting the reporting of the measurement result, and the measurement event in the second list is not applicable to the first cell.

In the communication method shown in fig. 10, the terminal device receives the fourth configuration from the network device, and determines the measurement event type that allows or prohibits reporting of the measurement result according to the third information in the fourth configuration, so that the terminal device can report or not report the measurement event related result based on each event type, reporting of the measurement result based on each event can be reduced, and power consumption and air interface resources are saved. For example, if the network device includes the A3 event in the second list indicating that the measurement result is prohibited from being reported, the UE does not report the measurement result of the A3 event based on the second list, and the network device does not receive the measurement result of the A3 event, so that the handover decision is not performed based on the A3 event, so that the collision of the layer 1 and the layer 3 handover is avoided, the ping-pong handover is avoided, and the LTM handover performance can be improved.

In some possible examples, it may further include: the network device sends the second configuration to the terminal device. Wherein the second configuration comprises a first measurement configuration comprising a measurement object configuration. In some possible examples, it may further include: the network device sends the first configuration to the terminal device. The first configuration and the second configuration may be described with reference to the embodiments of fig. 7 and 8, and are not described herein. The present application is not limited to the execution order of the first configuration, the second configuration, and the fourth configuration.

In some possible examples, it may further include: if the first cell detected according to the measurement object configuration is an LTM candidate cell, reporting a measurement result when the measurement result of the first cell meets a measurement reporting trigger condition of a measurement event type allowing the measurement result to be reported; and/or if the first cell detected according to the measurement object configuration is an LTM candidate cell, reporting measurement results of measurement events of the measurement event type for the first cell without restriction on newspaper licensing reporting the measurement results.

In one understanding, in the case that the measurement event type included in the second list is a measurement event type that allows reporting of a measurement result, the third information is applicable to the LTM candidate cell in the first cell; in case that the measurement event type included in the second list is a measurement event type prohibiting reporting of the measurement result, the third information is not applicable to the LTM candidate cell in the first cell. Or in another understanding, in the case that the measurement event type included in the second list is a measurement event type that allows reporting of a measurement result, the measurement event in the second list is applicable to the LTM candidate cell in the first cell; or in case that the measurement event type included in the second list is a measurement event type prohibiting reporting of the measurement result, the measurement event in the second list is not applicable to the LTM candidate cell in the first cell.

The measurement result of the first cell meets a measurement report triggering condition of a measurement event type allowing the measurement result to be reported, which may include that the measurement event involved in the measurement result of the first cell is the measurement event type allowing the measurement result to be reported, and the measurement result of the first cell meets the triggering condition of the measurement event, for example, the duration of the measurement event exceeds a preset time threshold value, etc.

The measurement result of the first cell satisfies a measurement report trigger condition of a measurement event type allowing the measurement result to be reported, or may include that a measurement parameter in the measurement result of the first cell satisfies a preset parameter threshold. For example, the measurement result of the first cell includes a signal quality of the first cell, and in some possible examples, if the signal quality of the first cell is less than a signal quality threshold, it is determined that the signal quality of the first cell satisfies a measurement report trigger condition of a measurement event type that allows the measurement result to be reported. That is, when the signal quality of the first cell is smaller than the signal quality threshold, it indicates that the signal quality is poor, and it is necessary to further determine whether to switch, so that the measurement result of the first cell can be used as a measurement report trigger condition that satisfies the measurement event type allowing the measurement result to be reported. By reporting the measurement report of the first cell, the accuracy of the switching judgment can be improved, the switching times can be reduced, and the switching performance can be improved.

It can be understood that the terminal device detects the first cell according to the measurement object configuration in the second configuration from the network device, and if the first cell is an LTM candidate cell, the measurement result of the first cell may be reported when the measurement result of the first cell satisfies a measurement report trigger condition of a measurement event type that allows the measurement result to be reported. When the first cell is an LTM candidate cell, but the measurement event type of the first cell is a measurement event type which prohibits the reporting of the measurement result, the measurement report is not reported even if the measurement result of the first cell satisfies the measurement report triggering condition. Therefore, the measurement result to be reported is screened through the measurement event type and the measurement report triggering condition, unnecessary measurement report can be avoided, power consumption and air interface resources can be saved, and the switching performance is improved. Alternatively, the measurement results for the non-LTM candidate cells in the first cell may be reported. Or reporting can be performed when the measurement result of the non-LTM candidate cell meets a preset measurement reporting triggering condition.

In some possible examples, the first measurement configuration may further include a first measurement period, and the communication method may further include the steps of: the network equipment sends a fifth configuration to the terminal equipment; if the first cell is an LTM candidate cell, performing a first measurement for the first cell based on the second measurement period; or if the first cell is not an LTM candidate cell, performing a first measurement for the first cell based on the first measurement period.

Referring to fig. 11, fig. 11 is a flow chart of a fifth communication method according to an embodiment of the present application. It should be understood that the terms used in the various embodiments of the application may be mutually referenced, and that the same terms may not be repeated for the different embodiments to avoid redundancy in description. As shown in fig. 11, the communication method may include steps S1101 to S1106, wherein:

step S1101: the network equipment sends a second configuration to the terminal equipment; wherein the second configuration comprises a first measurement configuration comprising a measurement object configuration and a first measurement period.

Step S1102: the network equipment sends a fifth configuration to the terminal equipment; wherein the fifth configuration comprises a second measurement period, the second measurement period being greater than the first measurement period.

Accordingly, the terminal device receives a fifth configuration from the network device.

Optionally, step S1103: the terminal device detects a first cell according to the measurement object configuration.

Optionally, step S1104: the terminal device determines whether the first cell is an LTM candidate cell.

If the first cell is an LTM candidate cell, step S1105 is performed: the terminal device performs a first measurement for the first cell based on the second measurement period. If the first cell is not an LTM candidate cell, step S1106 is performed: the terminal device performs a first measurement for a first cell based on a first measurement period.

Wherein, step S1103 and step S1104 may be performed according to whether the first cell is an LTM candidate cell when the number of LTM candidate cells is 1. If there is a first cell that is an LTM candidate cell and there is a first cell that is not an LTM candidate cell, both steps S1103 and S1104 are performed.

In the communication method shown in fig. 11, the terminal device receives the second configuration and the fifth configuration transmitted from the network device, and may determine the first cell according to the measurement object configuration in the second configuration, and when the first cell is a non-LTM candidate cell, perform the first measurement for the first cell based on the first measurement period. Or the first measurement may also be performed for the first cell based on the second measurement period when the first cell is an LTM candidate cell. Therefore, the measurement period (or measurement window) of the LTM candidate cell can be larger than that of the non-LTM candidate cell, so that reporting of measurement results of the LTM candidate cell is reduced, power consumption and air interface resources can be saved, and the LTM switching performance is improved.

The method embodiment provided by the embodiment of the application is described above, and the device embodiment related to the embodiment of the application is described below.

Referring to fig. 12, fig. 12 is a schematic structural diagram of a first communication device according to an embodiment of the application. As shown in fig. 12, the communication apparatus 1200 includes a transceiver unit 1201 and a processing unit 1202. The communication apparatus 1200 may be a terminal device or may be an apparatus (e.g., a chip, or a system-on-chip, or a circuit) in a terminal device. The communication apparatus 1200 as a terminal device may include the following 3 aspects.

In a first aspect, the transceiver unit 1201 is configured to receive a first configuration from a network device; wherein the first configuration comprises information of LTM candidate cells; receiving a second configuration from the network device; wherein the second configuration comprises a first measurement configuration comprising a measurement object configuration;

The processing unit 1202 is configured to perform a first action for a first cell if the first cell detected according to the measurement object configuration is not an LTM candidate cell; and/or if the first cell detected according to the measurement object configuration is an LTM candidate cell, not performing a first action for the first cell; wherein the first behavior comprises at least one of: and reporting the first measurement and the measurement result of the first measurement.

In some possible examples, the first configuration further includes first information or second information, the first information being for indicating:

if the first cell is not an LTM candidate cell, performing a first action with respect to the first cell; and/or

If the first cell is an LTM candidate cell, not performing a first action for the first cell;

the second information is used to indicate that a first behavior is to be performed for the first cell.

In some possible examples, the processing unit 1202 is specifically configured to perform a first behavior for a first cell according to a first measurement configuration; wherein the first measurement configuration further comprises at least one of: measurement identification, reporting configuration, measurement quantity configuration, measurement interval configuration and S measurement configuration.

In some possible examples, the processing unit 1202 is specifically configured to report the measurement result of the first measurement for the first cell if the timer of the measurement period expires or the measurement event satisfies a measurement report trigger condition.

In a second aspect, the transceiver unit 1201 is configured to receive a third configuration from a network device; wherein the third configuration comprises a first list comprising at least one cell; receiving a second configuration from the network device; wherein the second configuration comprises a first measurement configuration comprising a measurement object configuration;

the processing unit 1202 is configured to perform a first action for a first cell if the detected first cell is not a cell in the first list according to the measurement object configuration; and/or if the first cell detected according to the measurement object configuration is a cell in the first list, not performing the first action for the first cell; wherein the first behavior comprises at least one of: and reporting the first measurement and the measurement result of the first measurement.

In some possible examples, the processing unit 1202 is specifically configured to report a measurement result of performing the first measurement for the first cell if a timer of the measurement period expires or the measurement event satisfies a measurement report trigger condition.

In a third aspect, the transceiver unit 1201 is configured to receive a fourth configuration from a network device; the fourth configuration includes third information, where the third information indicates a measurement event type that allows or prohibits reporting of the measurement result.

In some possible examples, the transceiving unit 1201 is further for receiving a second configuration from a network device; wherein the second configuration comprises a first measurement configuration comprising a measurement object configuration;

The processing unit 1202 is configured to report a measurement result when the measurement result of the first cell satisfies a measurement report trigger condition of a measurement event type that allows the measurement result to be reported if the first cell detected according to the measurement object configuration is an LTM candidate cell; and/or if the first cell detected according to the measurement object configuration is an LTM candidate cell, reporting measurement results of measurement events of the measurement event type for the first cell without restriction on newspaper licensing reporting the measurement results.

In some possible examples, the first measurement configuration further comprises a first measurement period, and the transceiver unit 1201 is further configured to receive a fifth configuration from the network device; wherein the fifth configuration comprises a second measurement period, the second measurement period being greater than the first measurement period;

The processing unit 1202 is further configured to perform a first measurement for the first cell based on the second measurement period if the first cell is an LTM candidate cell; and/or if the first cell is not an LTM candidate cell, performing a first measurement for the first cell based on the first measurement period.

In some possible examples, the measurement result of the first cell includes a signal quality of the first cell, and the processing unit 1202 is further configured to determine that the signal quality of the first cell meets a measurement report trigger condition of a measurement event type that allows reporting of the measurement result if the signal quality of the first cell is less than a signal quality threshold.

For more detailed descriptions of the transceiver unit 1201 and the processing unit 1202, reference may be directly made to the related descriptions of the terminal device in any of the method embodiments shown in fig. 7 to 11, which are not repeated herein.

Referring to fig. 13, fig. 13 is a schematic structural diagram of a second communication device according to an embodiment of the application. As shown in fig. 13, the communication apparatus 1300 includes a transceiving unit 1301. The communications apparatus 1300 can be a network device or can be an apparatus (e.g., a chip, or a system-on-a-chip, or a circuit) in a network device. The communication apparatus 1300 as a terminal device may include the following 2 aspects.

The transceiver unit 1301 is configured to send a third configuration to the network device; wherein the third configuration comprises a first list comprising at least one cell, the cells in the first list not performing a first action, the first action comprising at least one of: and reporting the first measurement and the measurement result of the first measurement.

In a second aspect, the transceiver unit 1301 is configured to send a fourth configuration to the network device; the fourth configuration includes third information, where the third information indicates a measurement event type that allows or prohibits triggering of reporting of the measurement result.

In some possible examples, the transceiving unit 1301 is further configured to send the second configuration to the terminal device; wherein the second configuration comprises a first measurement configuration comprising a measurement object configuration.

In some possible examples, the first measurement configuration further includes a first measurement period, and the transceiver unit 1301 is further configured to send a fifth configuration to the terminal device; the fifth configuration includes a second measurement period, the second measurement period being greater than the first measurement period, the first measurement period being adapted for non-LTM candidate cells in the first cell detected according to the measurement object configuration, the second measurement period being adapted for LTM candidate cells in the first cell.

For a more detailed description of the transceiving unit 1301, reference may be directly made to the related description of the network device in any of the method embodiments shown in fig. 7 to 11, which is not repeated here.

Based on the above network architecture, please refer to fig. 14, fig. 14 is a schematic structural diagram of a third communication apparatus according to an embodiment of the present application. As shown in fig. 14, the communication device 1400 may include one or more processors 1401, where the processor 1401 may be referred to as a processing unit and may implement certain control functions. The processor 1401 may be a general purpose processor or a special purpose processor, or the like. For example, a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processor may be used to control communication devices (e.g., base stations, baseband chips, terminals, terminal chips, DUs or CUs, etc.), execute software programs, and process data of the software programs.

In an alternative design, processor 1401 may have instructions 1403 and/or data stored therein, and instructions 1403 and/or data may be executed by the processor to cause apparatus 1400 to perform the methods described in the method embodiments above.

In another alternative design, the processor 1401 may include a transceiver unit for implementing the receive and transmit functions. For example, the transceiver unit may be a transceiver circuit, or an interface circuit, or a communication interface. The transceiver circuitry, interface or interface circuitry for implementing the receive and transmit functions may be separate or may be integrated. The transceiver circuit, interface or interface circuit may be used for reading and writing codes/data, or the transceiver circuit, interface or interface circuit may be used for transmitting or transferring signals.

In yet another possible design, communication device 1400 may include circuitry that may perform the functions of transmitting or receiving or communicating in the foregoing method embodiments.

Optionally, the communication device 1400 may include one or more memories 1402 on which instructions 1404 may be stored, which may be executed on a processor, to cause the communication device 1400 to perform the methods described in the method embodiments above. Optionally, the memory may also have data stored therein. In the alternative, the processor may store instructions and/or data. The processor and the memory may be provided separately or may be integrated. For example, the correspondence described in the above method embodiments may be stored in a memory or in a processor.

Optionally, the communication device 1400 may also include a transceiver 1405 and/or an antenna 1406. The processor 1401 may be referred to as a processing unit and controls the apparatus 1400. The transceiver 1405 may be referred to as a transceiver unit, a transceiver circuit, a transceiver device, a transceiver module, or the like, for implementing a transceiver function.

Alternatively, the communication device 1400 may be used to perform any of the methods described in fig. 7-11 in embodiments of the present application.

In one embodiment, the communication apparatus 1400 may be a terminal device, or may be an apparatus (e.g., a chip, or a chip system, or a circuit) in a terminal device, where the processor 1401 is configured to perform an operation performed by the processing unit 1202 in the above embodiment or to perform an operation performed by the processing unit 1202 in the above embodiment when the computer program instructions stored in the memory 1402 are executed. The transceiver 1405 is configured to perform the operation performed by the transceiver unit 1201 in the above embodiment, and the transceiver 1405 is also configured to transmit information to other communication devices than the communication device. The terminal device or the apparatus in the terminal device may also be used to perform any method performed by the terminal device in the embodiments of the methods of fig. 7 to 11, which is not described herein.

In one embodiment, the communication apparatus 1400 may be a network device, or may be an apparatus (e.g., a chip, or a chip system, or a circuit) in the network device, and when the computer program instructions stored in the memory 1402 are executed, the processor 1401 is configured to control the transceiver 1405 to perform the operations performed by the transceiver unit 1301 in the above embodiment, and the transceiver 1405 is further configured to receive information from other communication apparatuses other than the communication apparatus. The above network device or the apparatus within the network device may also be used to perform any method performed by the network device in the embodiments of the method of fig. 7 to 11, which is not described herein.

The processors and transceivers described in this disclosure may be implemented on integrated circuits (INTEGRATED CIRCUIT, IC), analog ICs, radio frequency integrated circuits (radiofrequencyinterfacechip, RFIC), mixed signal ICs, application Specific Integrated Circuits (ASIC), printed circuit boards (printed circuit board, PCB), electronic devices, and the like. The processor and transceiver may also be fabricated using a variety of IC process technologies such as complementary metal oxide semiconductor (complementary metal oxide semiconductor, CMOS), N-type metal oxide semiconductor (NMOS), P-type metal oxide semiconductor (PMOS), bipolar junction transistor (bipolar junction transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

The communication apparatus in the above embodiment description may be a terminal device or a network device, but the scope of the apparatus described in the present application is not limited thereto, and the structure of the communication apparatus may not be limited by fig. 14. The apparatus may be a stand-alone device or may be part of a larger device. For example, the communication device may be:

(1) A stand-alone integrated circuit IC, or chip, or system-on-a-chip or subsystem;

(2) Having a set of one or more ICs, which may optionally also include storage means for storing data and/or instructions;

(3) An ASIC, such as a modem (MSM);

(4) Modules that may be embedded within other devices;

(5) Receivers, terminals, smart terminals, cellular telephones, wireless devices, handsets, mobile units, vehicle devices, network devices, cloud devices, artificial intelligence devices, machine devices, home devices, medical devices, industrial devices, etc.;

(6) Others, and so on.

Referring to fig. 15, fig. 15 is a schematic structural diagram of a terminal device according to an embodiment of the present application. For convenience of explanation, fig. 15 shows only major components of the terminal device. As shown in fig. 15, the terminal apparatus 1500 includes a processor, a memory, a control circuit, an antenna, and an input-output device. The processor is mainly used for processing the communication protocol and the communication data, controlling the whole terminal, executing the software program and processing the data of the software program. The memory is mainly used for storing software programs and data. The radio frequency circuit is mainly used for converting a baseband signal and a radio frequency signal and processing the radio frequency signal. The antenna is mainly used for receiving and transmitting radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are mainly used for receiving data input by a user and outputting data to the user.

When the terminal is started, the processor can read the software program in the storage unit, analyze and execute the instructions of the software program and process the data of the software program. When data is required to be transmitted wirelessly, the processor carries out baseband processing on the data to be transmitted and then outputs a baseband signal to the radio frequency circuit, and the radio frequency circuit processes the baseband signal to obtain a radio frequency signal and transmits the radio frequency signal outwards in the form of electromagnetic waves through the antenna. When data is transmitted to the terminal, the radio frequency circuit receives a radio frequency signal through the antenna, the radio frequency signal is further converted into a baseband signal, and the baseband signal is output to the processor, and the processor converts the baseband signal into data and processes the data.

For ease of illustration, fig. 15 shows only one memory and processor. In an actual terminal, there may be multiple processors and memories. The memory may also be referred to as a storage medium or storage device, etc., and embodiments of the present application are not limited in this respect.

As an alternative implementation manner, the processor may include a baseband processor, which is mainly used to process the communication protocol and the communication data, and a central processor, which is mainly used to control the whole terminal, execute a software program, and process the data of the software program. The processor in fig. 15 integrates the functions of a baseband processor and a central processing unit, and those skilled in the art will appreciate that the baseband processor and the central processing unit may be separate processors, interconnected by bus technology, etc. Those skilled in the art will appreciate that a terminal may include multiple baseband processors to accommodate different network formats, and that a terminal may include multiple central processors to enhance its processing capabilities, with various components of the terminal being connectable via various buses. The baseband processor may also be referred to as a baseband processing circuit or baseband processing chip. The central processor may also be expressed as a central processing circuit or a central processing chip. The function of processing the communication protocol and the communication data may be built in the processor, or may be stored in the storage unit in the form of a software program, which is executed by the processor to realize the baseband processing function.

In one example, an antenna and a control circuit having a transmitting/receiving function may be regarded as the transmitting/receiving unit 1501 of the terminal apparatus 1500, and a processor having a processing function may be regarded as the processing unit 1502 of the terminal apparatus 1500. As shown in fig. 15, the terminal device 1500 includes a transceiving unit 1501 and a processing unit 1502. The transceiver unit may also be referred to as a transceiver, transceiver device, etc. Alternatively, a device for realizing a receiving function in the transceiver unit 1501 may be regarded as a receiving unit, and a device for realizing a transmitting function in the transceiver unit 1501 may be regarded as a transmitting unit, i.e., the transceiver unit 1501 includes a receiving unit and a transmitting unit. For example, the receiving unit may also be referred to as a receiver, a receiving circuit, etc., and the transmitting unit may be referred to as a transmitter, a transmitting circuit, etc. Alternatively, the receiving unit and the transmitting unit may be integrated together, or may be a plurality of independent units. The receiving unit and the transmitting unit may be located in one geographical location or may be distributed among a plurality of geographical locations.

In one embodiment, the transceiving unit 1501 is used to perform the operation performed by the transceiving unit 1201 in the above embodiment or to perform the operation performed by the transceiving unit 1301 in the above embodiment. The processing unit 1502 is configured to perform the operations performed by the processing unit 1202 in the above-described embodiments. The terminal device 1500 may also be used to perform any method performed by the terminal device or the network device in the embodiments of the methods of fig. 7 to 11, which are not described herein.

The embodiment of the application also provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, can implement a procedure related to a terminal device in the communication method provided in the above method embodiment.

The embodiment of the application also provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, can implement a flow related to a network device in the communication method provided in the above method embodiment.

Embodiments of the present application also provide a computer program product which, when run on a computer or processor, causes the computer or processor to perform one or more steps of any of the communication methods described above. The respective constituent modules of the above-mentioned apparatus may be stored in a computer-readable storage medium if implemented in the form of software functional units and sold or used as independent products.

The embodiment of the application also provides a chip system, which comprises at least one processor and a communication interface, wherein the communication interface and the at least one processor are interconnected through a circuit, and the at least one processor is used for running a computer program or instructions to execute part or all of the steps of any one of the method embodiments corresponding to the above-mentioned fig. 7-11. The chip system can be composed of chips, and can also comprise chips and other discrete devices.

The embodiment of the application also provides a communication system, which comprises a terminal device and a network device, and the specific description can refer to any one of the communication methods shown in fig. 7 to 11.

It should be understood that the memory referred to in embodiments of the present application may be volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile memory may be a hard disk (HARD DISK DRIVE, HDD), a Solid State Disk (SSD), a read-only memory (ROM), a Programmable ROM (PROM), an erasable programmable ROM (erasable PROM, EPROM), an Electrically Erasable Programmable ROM (EEPROM), or a flash memory. The volatile memory may be random access memory (random access memory, RAM) which acts as external cache memory. By way of example, and not limitation, many forms of RAM are available, such as static random access memory (STATIC RAM, SRAM), dynamic random access memory (DYNAMIC RAM, DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate synchronous dynamic random access memory (double DATA RATE SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (ENHANCED SDRAM, ESDRAM), synchronous link dynamic random access memory (SYNCHLINK DRAM, SLDRAM), and direct memory bus random access memory (direct rambus RAM, DR RAM). The memory is any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to such. The memory in embodiments of the present application may also be circuitry or any other device capable of performing memory functions for storing program instructions and/or data.

It should also be appreciated that the processor referred to in the embodiments of the present application may be a central processing unit (central processing unit, CPU), but may also be other general purpose processors, digital signal processors (DIGITAL SIGNAL processors, DSPs), application Specific Integrated Circuits (ASICs), off-the-shelf programmable gate arrays (field programmable GATE ARRAY, FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It should be noted that when the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, the memory (storage module) is integrated into the processor.

It should be noted that the memory described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that, in various embodiments of the present application, the sequence numbers of the foregoing processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, and are not repeated herein.

In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of elements is merely a logical functional division, and there may be additional divisions of actual implementation, e.g., multiple elements or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the technology or in a part of the technical solution, in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods of the embodiments of the present application. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk, etc.

The steps in the method of the embodiment of the application can be sequentially adjusted, combined and deleted according to actual needs. The steps of each embodiment may be partially performed (e.g., the terminal device may not perform the steps performed by the terminal device in the embodiments described above). The order of execution of the different steps may be altered. The embodiments described herein may be combined with other embodiments, and different embodiments may be combined with each other, and different steps of different embodiments may be combined with each other.

The modules/units in the device of the embodiment of the application can be combined, divided and deleted according to actual needs.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

The terms "first," "second," "third," "fourth," and the like in embodiments of the present application, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.

In the embodiment of the application, the "including" may be an inclusion relationship or an equality relationship. For example, a includes B, and a may include other content in addition to B, or a and B may be the same content.

In the description of the present application, unless otherwise indicated, "/" means that the objects associated in tandem are in a "or" relationship, e.g., A/B may represent A or B; the "and/or" in the present application is merely an association relationship describing the association object, and indicates that three relationships may exist, for example, a and/or B may indicate: there are three cases, a alone, a and B together, and B alone, wherein a, B may be singular or plural. Also, in the description of the present application, unless otherwise indicated, "a plurality" means two or more than two. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b, or c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or plural. In addition, in order to facilitate the clear description of the technical solution of the embodiments of the present application, in the embodiments of the present application, the words "first", "second", etc. are used to distinguish the same item or similar items having substantially the same function and effect. It will be appreciated by those of skill in the art that the words "first," "second," and the like do not limit the amount and order of execution, and that the words "first," "second," and the like do not necessarily differ.

The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.

Claims

1. A method of communication, comprising:

receiving a first configuration from a network device; wherein the first configuration includes information of layer 1 and/or layer 2 triggered mobility LTM candidate cells;

Receiving a second configuration from the network device; wherein the second configuration comprises a first measurement configuration comprising a measurement object configuration;

performing a first action with respect to a first cell detected according to the measurement object configuration if the first cell is not the LTM candidate cell; and/or

If a first cell detected according to the measurement object configuration is the LTM candidate cell, not performing a first action for the first cell;

wherein the first behavior comprises at least one of: and reporting the first measurement and the measurement result of the first measurement.

2. The communication method according to claim 1, wherein the first configuration further includes first information or second information, the first information being used to indicate:

Performing the first action for the first cell if the first cell is not the LTM candidate cell; and/or

If the first cell is the LTM candidate cell, not performing the first action for the first cell;

the second information is used to indicate that the first action is performed for the first cell.

3. The communication method according to claim 1 or 2, wherein the first measurement comprises a layer 3 measurement or a radio resource management, RRM, measurement.

4. A communication method according to any of claims 1-3, wherein the first configuration further comprises a second measurement configuration, the communication method further comprising:

Performing a second measurement according to the second measurement configuration; wherein the second measurement comprises at least one of: layer 1 measurements, synchronization signal and physical broadcast channel block SSB measurements, channel state indication reference signal CSI-RS measurements.

5. The communication method according to any of claims 1-4, wherein the performing a first action for the first cell comprises:

performing a first behavior for the first cell according to the first measurement configuration; wherein the first measurement configuration further comprises at least one of: measurement identification, reporting configuration, measurement quantity configuration, measurement interval configuration and S measurement configuration.

6. The communication method according to any of claims 1-5, wherein the performing a first action for the first cell comprises:

and if the timer of the measurement period is overtime or the measurement event meets the measurement report triggering condition, reporting the measurement result of the first measurement aiming at the first cell.

7. A method of communication, comprising:

receiving a third configuration from the network device; wherein the third configuration comprises a first list comprising at least one cell;

If the detected first cell is not a cell in the first list according to the measurement object configuration, performing a first action for the first cell; and/or

If the first cell detected according to the measurement object configuration is a cell in the first list, not performing a first action for the first cell;

8. The communication method of claim 7, wherein the cells in the first list comprise LTM candidate cells.

9. A method of communication, comprising:

Receiving a fourth configuration from the network device; the fourth configuration includes third information, where the third information indicates a measurement event type that allows or prohibits reporting of the measurement result.

10. The communication method according to claim 9, wherein the third information comprises a second list comprising at least one measurement event type.

11. The communication method according to claim 9 or 10, characterized by further comprising:

If the detected first cell is an LTM candidate cell according to the measurement object configuration, reporting the measurement result when the measurement result of the first cell meets the measurement reporting triggering condition of the measurement event type allowing the measurement result to be reported; and/or

And if the first cell detected according to the measurement object configuration is the LTM candidate cell, not reporting the measurement result of the measurement event type of which the measurement result is prohibited from being reported aiming at the first cell.

12. The communication method according to claim 11, wherein the first measurement configuration further comprises a first measurement period, the communication method further comprising:

receiving a fifth configuration from the network device; wherein the fifth configuration comprises a second measurement period, the second measurement period being greater than the first measurement period;

Performing a first measurement for the first cell based on the second measurement period if the first cell is the LTM candidate cell; and/or

If the first cell is not the LTM candidate cell, a first measurement is performed for the first cell based on the first measurement period.

13. The communication method according to claim 11 or 12, wherein the measurement result of the first cell includes a signal quality of the first cell, the communication method further comprising:

and if the signal quality of the first cell is smaller than a signal quality threshold, determining that the signal quality of the first cell meets a measurement report triggering condition of the measurement event type allowing the measurement result to be reported.

14. A method of communication, comprising:

Transmitting a third configuration to the terminal equipment; wherein the third configuration comprises a first list comprising at least one cell, the cells in the first list not performing a first behavior comprising at least one of: and reporting the first measurement and the measurement result of the first measurement.

15. The communication method of claim 14, wherein the cells in the first list comprise LTM candidate cells.

16.A method of communication, comprising:

Transmitting a fourth configuration to the terminal equipment; the fourth configuration includes third information, where the third information indicates a measurement event type that allows or prohibits triggering of reporting of the measurement result.

17. The communication method of claim 16, wherein the third information comprises a second list comprising at least one measurement event type.

18. A method of communicating according to claim 16 or 17, further comprising:

sending a second configuration to the terminal equipment; wherein the second configuration comprises a first measurement configuration comprising a measurement object configuration.

19. The communication method according to claim 18, wherein the first measurement configuration further comprises a first measurement period, the communication method further comprising:

Transmitting a fifth configuration to the terminal device; wherein the fifth configuration includes a second measurement period, the second measurement period being greater than the first measurement period, the first measurement period being applicable to non-LTM candidate cells in the first cell detected according to the measurement object configuration, the second measurement period being applicable to LTM candidate cells in the first cell.

20. A communication device, characterized by comprising means for performing the communication method according to any of claims 1-13 or means for performing the communication method according to any of claims 14-19.

21. A communication device comprising a processor and a storage medium storing instructions that, when executed by the processor, cause the communication method according to any one of claims 1-13 to be implemented or the communication method according to any one of claims 14-19 to be implemented.

22. A computer-readable storage medium comprising instructions that, when executed by a processor, cause the communication method according to any one of claims 1-13 to be implemented or cause the communication method according to any one of claims 14-19 to be implemented.

23. A computer program product, characterized in that the computer program product comprises instructions which, when executed by a processor, cause the communication method according to any of claims 1-13 to be implemented or cause the communication method according to any of claims 14-19 to be implemented.

24. A communication method, characterized in that the communication method comprises a communication method according to any one of claims 1-13 and a communication method according to any one of claims 14-19.

25. A communication system, characterized in that the communication system comprises a terminal device for performing the communication method according to any of claims 1-13 and a network device for performing the communication method according to any of claims 14-19.