Conditional switching with target dual connectivity configuration

Abstract

An apparatus comprising: at least one processor; and at least one memory including computer program code, the at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus to at least: establish a connection to a user equipment (UE) via a source primary cell; providing a source primary cell measurement configuration to the UE; determining conditions for accessing a target primary cell in a secondary cell group of a target secondary node, the target secondary node being associated with conditional handover to the target primary node; generating a measurement identifier to associate, in the updated source primary cell measurement configuration, with a condition of a target primary cell in a secondary cell group for accessing a target secondary node, the target secondary node being associated with a conditional handover to the target primary node; the generated measurement identifier and the condition for accessing the target primary cell in the secondary cell group are included in an updated source primary cell measurement configuration; and sending the updated source primary cell measurement configuration to the user equipment.

Description

Technical Field

[0001] Examples of the present disclosure relate to conditional handover. Some examples relate to conditional handover with dual connectivity configuration. Background Art

[0002] The wireless network includes multiple network nodes, including terminal nodes and access nodes. The communication between the terminal nodes and the access nodes is wireless.

[0003] In some cases, it may be desirable to improve or enhance conditional handover with a target dual connectivity configuration. Summary of the invention

[0004] According to various but not necessarily all embodiments, there is provided an apparatus comprising:

[0005] at least one processor; and

[0006] at least one memory including computer program code,

[0007] The at least one memory stores instructions that, when executed by the at least one processor, cause the apparatus to at least:

[0008] Establishing a connection to the user equipment UE via the source primary cell;

[0009] Providing source primary cell measurement configuration to the UE;

[0010] determining a condition for accessing a target primary cell in a secondary cell group of a target secondary node, the target secondary node being associated with a conditional handover to the target primary node;

[0011] generating a measurement identifier to be associated with a condition of a target primary cell in a secondary cell group for accessing a target secondary node in an updated source primary cell measurement configuration, the target secondary node being associated with a conditional handover to the target primary node;

[0012] including the generated measurement identifier and the condition for accessing the target primary cell in the secondary cell group in an updated source primary cell measurement configuration;

[0013] Send the updated source primary cell measurement configuration to the user equipment.

[0014] In some examples, determining a condition for accessing a target primary cell in a secondary cell group includes: receiving information; and determining the condition based at least in part on the received information.

[0015] In some examples, the information is received from a target master node and includes measurement related information.

[0016] In some examples, the measurement-related information includes measurement object information.

[0017] In some examples, the at least one memory stores instructions that, when executed by the at least one processor, cause the apparatus to at least: generate a reporting configuration for conditions for accessing a target primary cell in a secondary cell group.

[0018] In some examples, the conditions include conditional PSCell addition and changing CPAC conditions.

[0019] In some examples, the updated source primary cell measurement configuration includes: a generated measurement identifier, and measurement object information received from the target primary node.

[0020] In some examples, the updated source primary cell measurement configuration includes: a generated reporting configuration.

[0021] In some examples, determining a condition for accessing a target primary cell in a secondary cell group includes receiving the condition.

[0022] In some examples, the at least one memory stores instructions that, when executed by the at least one processor, cause the apparatus to at least: receive a reporting configuration for conditions for accessing a target primary cell in a secondary cell group.

[0023] In some examples, the updated source primary cell measurement configuration includes a conditional handover CHO execution condition.

[0024] In some examples, the updated source primary cell measurement configuration includes: a first CHO execution condition associated with a first generated measurement identifier and a first condition for accessing a target primary cell in a secondary cell group, and a second CHO execution condition associated with a second generated measurement identifier and a second condition for accessing the target primary cell in the secondary cell group, wherein the first condition and the second condition for accessing the target primary cell in the secondary cell group include conditional PSCell addition and change of CPAC condition.

[0025] In some examples, the at least one memory stores instructions that, when executed by the at least one processor, cause the apparatus to at least:

[0026] receiving an indication of a second measurement identifier, the second measurement identifier being associated with a condition for accessing a target primary cell in a secondary cell group in a target primary cell measurement configuration; and

[0027] An indication is sent to the UE to maintain the following measurement information after application of the target primary cell measurement configuration, for evaluating the conditions for accessing the target primary cell in the secondary cell group associated with the second measurement identifier, and the measurement information is associated with the evaluation of the conditions for accessing the target primary cell in the secondary cell group, and the condition is associated with the generated measurement identifier.

[0028] In some examples, the indication of the second measurement identity includes the second measurement identity.

[0029] According to various but not necessarily all embodiments, there is provided a method comprising:

[0030] Establishing a connection to the user equipment UE via the source primary cell;

[0031] Providing source primary cell measurement configuration to the UE;

[0032] determining a condition for accessing a target primary cell in a secondary cell group of a target secondary node, the target secondary node being associated with a conditional handover to the target primary node;

[0033] generating a measurement identifier to be associated with a condition of a target primary cell in a secondary cell group for accessing a target secondary node in an updated source primary cell measurement configuration, the target secondary node being associated with a conditional handover to the target primary node;

[0034] including the generated measurement identifier and the condition for accessing the target primary cell in the secondary cell group in the updated source primary cell measurement configuration;

[0035] Send the updated source primary cell measurement configuration to the user equipment.

[0036] In some examples, determining a condition for accessing a target primary cell in a secondary cell group includes: receiving information; and determining the condition based at least in part on the received information.

[0037] In some examples, determining a condition for accessing a target primary cell in a secondary cell group includes receiving the condition.

[0038] In some examples, the method includes:

[0039] receiving an indication of a second measurement identifier, the second measurement identifier being associated with a condition for accessing a target primary cell in a secondary cell group in a target primary cell measurement configuration; and

[0040] An indication is sent to the UE to maintain the following measurement information after application of the target primary cell measurement configuration, for evaluating the conditions for accessing the target primary cell in the secondary cell group associated with the second measurement identifier, and the measurement information is associated with the evaluation of the conditions for accessing the target primary cell in the secondary cell group, and the condition is associated with the generated measurement identifier.

[0041] According to various but not necessarily all embodiments, there is provided a computer program comprising instructions for causing an apparatus to at least perform the following:

[0042] Establishing a connection to the user equipment UE via the source primary cell;

[0043] Providing source primary cell measurement configuration to the UE;

[0044] determining a condition for accessing a target primary cell in a secondary cell group of a target secondary node, the target secondary node being associated with a conditional handover to the target primary node;

[0045] generating a measurement identifier to be associated with a condition of a target primary cell in a secondary cell group for accessing a target secondary node in an updated source primary cell measurement configuration, the target secondary node being associated with a conditional handover to the target primary node;

[0046] including the generated measurement identifier and the condition for accessing the target primary cell in the secondary cell group in the updated source primary cell measurement configuration;

[0047] Send the updated source primary cell measurement configuration to the user equipment.

[0048] In some examples, determining a condition for accessing a target primary cell in a secondary cell group includes: receiving information; and determining the condition based at least in part on the received information.

[0049] In some examples, determining a condition for accessing a target primary cell in a secondary cell group includes receiving the condition.

[0050] In some examples, the computer program includes instructions for causing the apparatus to at least perform the following:

[0051] receiving an indication of a second measurement identifier, the second measurement identifier being associated with a condition for accessing a target primary cell in a secondary cell group in a target primary cell measurement configuration; and

[0052] An indication is sent to the UE to maintain the following measurement information after application of the target primary cell measurement configuration, for evaluating the conditions for accessing the target primary cell in the secondary cell group associated with the second measurement identifier, and the measurement information is associated with the evaluation of the conditions for accessing the target primary cell in the secondary cell group, and the condition is associated with the generated measurement identifier.

[0053] According to various but not necessarily all embodiments, there is provided an apparatus comprising:

[0054] at least one processor; and

[0055] at least one memory including computer program code,

[0056] The at least one memory stores instructions that, when executed by the at least one processor, cause the apparatus to at least:

[0057] receiving a handover request; and

[0058] Information is sent to allow determination of conditions for accessing a target primary cell in the secondary cell group of a target secondary node associated with a conditional handover to the target primary node, which condition will be associated with a measurement identifier generated by the source primary node in a source primary cell measurement configuration.

[0059] In some examples, the at least one memory stores instructions that, when executed by the at least one processor, cause the apparatus to at least:

[0060] determining conditions for accessing a target primary cell in the secondary cell group, and

[0061] The sending of information to allow determination of a condition for accessing a target primary cell in the secondary cell group includes: sending the determined condition.

[0062] In some examples, the information includes measurement-related information.

[0063] In some examples, the measurement-related information includes measurement object information.

[0064] In some examples, the at least one memory stores instructions that, when executed by the at least one processor, cause the device to at least: determine a reporting configuration for conditions for accessing a target primary cell in a secondary cell group, and wherein sending information to allow determination of conditions for accessing the target primary cell in the secondary cell group includes: sending the determined reporting configuration.

[0065] In some examples, the at least one memory stores instructions that, when executed by the at least one processor, cause the apparatus to at least:

[0066] An indication of a measurement identifier is sent, where the measurement identifier is associated with a condition for accessing a target primary cell in the secondary cell group in a target primary cell measurement configuration.

[0067] In some examples, the indication of the measurement identifier includes: a measurement identifier associated with a condition for accessing a target primary cell in a secondary cell group in a target primary cell measurement configuration.

[0068] According to various but not necessarily all embodiments, there is provided a method comprising:

[0069] receiving a handover request; and

[0070] Information is sent to allow determination of conditions for accessing a target primary cell in the secondary cell group of a target secondary node associated with a conditional handover to the target primary node, which condition will be associated with a measurement identifier generated by the source primary node in a source primary cell measurement configuration.

[0071] In some examples, the method includes:

[0072] determining conditions for accessing a target primary cell in the secondary cell group, and

[0073] The sending of information to allow determination of a condition for accessing a target primary cell in the secondary cell group includes: sending the determined condition.

[0074] In some examples, the method includes:

[0075] An indication of a measurement identifier is sent, where the measurement identifier is associated with a condition for accessing a target primary cell in the secondary cell group in a target primary cell measurement configuration.

[0076] According to various but not necessarily all embodiments, there is provided a computer program comprising instructions for causing an apparatus to at least perform the following:

[0077] receiving a handover request; and

[0078] Information is sent to allow determination of conditions for accessing a target primary cell in the secondary cell group of the target secondary node associated with a conditional handover to the target primary node, which conditions will be associated with a measurement identity generated by the source primary node in a source primary cell measurement configuration.

[0079] In some examples, the computer program includes instructions for causing the apparatus to at least perform the following:

[0080] determining conditions for accessing a target primary cell in the secondary cell group, and

[0081] The sending of information to allow determination of a condition for accessing a target primary cell in the secondary cell group includes: sending the determined condition.

[0082] In some examples, the computer program includes instructions for causing the apparatus to at least perform the following:

[0083] An indication of a measurement identifier is sent, where the measurement identifier is associated with a condition for accessing a target primary cell in the secondary cell group in a target primary cell measurement configuration.

[0084] According to various but not necessarily all embodiments, there is provided an apparatus comprising:

[0085] at least one processor; and

[0086] at least one memory including computer program code,

[0087] The at least one memory stores instructions that, when executed by the at least one processor, cause the apparatus to at least:

[0088] Establish a connection to the source master node;

[0089] receiving at least one measurement configuration from a source primary node, the at least one measurement configuration comprising a condition for accessing a target primary cell in a secondary cell group of a target secondary node, the target secondary node being associated with a conditional handover to the target primary node; and

[0090] At least one measurement variable is created for the received at least one measurement configuration.

[0091] In some examples, the at least one measurement configuration is a source primary cell measurement configuration.

[0092] In some examples, creating at least one measurement variable for the received at least one measurement configuration includes updating at least one measurement variable associated with a source primary cell to include a measurement identifier associated with a condition for accessing a target primary cell in a secondary cell group.

[0093] In some examples, the at least one memory stores instructions that, when executed by the at least one processor, cause the apparatus to at least:

[0094] An indication is received to maintain the following measurement information after application of the target primary cell measurement configuration, for evaluating the conditions for accessing the target primary cell in the secondary cell group associated with the second measurement identifier in the target primary cell measurement configuration, the measurement information being associated with the conditions for accessing the target primary cell in the secondary cell group associated with the measurement identifier.

[0095] In some examples, the indication includes a second measurement identification.

[0096] In some examples, the at least one memory stores instructions that, when executed by the at least one processor, cause the device to at least: use the retained measurement information to evaluate conditions for accessing a target primary cell in a secondary cell group that are associated with a second measurement identifier in a target primary cell measurement configuration.

[0097] In some examples, at least one measurement configuration includes a target primary cell measurement configuration.

[0098] In some examples, creating at least one measurement variable includes creating at least one independent measurement variable for the target primary cell measurement configuration.

[0099] In some examples, the at least one memory stores instructions that, when executed by the at least one processor, cause the apparatus to at least:

[0100] An indication is received to maintain measurement information after application of the target primary cell measurement configuration, the measurement information being used to evaluate conditions for accessing the target primary cell in the secondary cell group.

[0101] In some examples, the indication includes a sign.

[0102] In some examples, the at least one memory stores instructions that, when executed by the at least one processor, cause the apparatus to at least: evaluate conditions for accessing a target primary cell in a secondary cell group using the retained measurement information after application of the target primary cell measurement configuration.

[0103] According to various but not necessarily all embodiments, there is provided a method comprising:

[0104] Establish a connection to the source master node;

[0105] receiving at least one measurement configuration from a source primary node, the at least one measurement configuration comprising a condition for accessing a target primary cell in a secondary cell group of a target secondary node, the target secondary node being associated with a conditional handover to the target primary node; and

[0106] At least one measurement variable is created for the received at least one measurement configuration.

[0107] In some examples, the at least one measurement configuration is a source primary cell measurement configuration.

[0108] In some examples, creating at least one measurement variable for the received at least one measurement configuration includes updating at least one measurement variable associated with a source primary cell to include a measurement identifier associated with a condition for accessing a target primary cell in a secondary cell group.

[0109] In some examples, the method includes:

[0110] An indication is received to maintain the following measurement information after application of the target primary cell measurement configuration, for evaluating the conditions for accessing the target primary cell in the secondary cell group associated with the second measurement identifier in the target primary cell measurement configuration, the measurement information being associated with the conditions for accessing the target primary cell in the secondary cell group associated with the measurement identifier.

[0111] In some examples, the indication includes a second measurement identification.

[0112] In some examples, at least one measurement configuration includes a target primary cell measurement configuration.

[0113] In some examples, creating at least one measurement variable includes creating at least one independent measurement variable for the target primary cell measurement configuration.

[0114] In some examples, the method includes:

[0115] An indication is received to maintain measurement information after application of the target primary cell measurement configuration, the measurement information being used to evaluate conditions for accessing the target primary cell in the secondary cell group.

[0116] In some examples, the indication includes an indication of a measurement identifier that is associated with a condition for accessing a target primary cell in the secondary cell group in a target primary cell measurement configuration.

[0117] According to various but not necessarily all embodiments, there is provided a computer program comprising instructions for causing an apparatus to at least perform the following:

[0118] Establish a connection to the source master node;

[0119] receiving at least one measurement configuration from a source primary node, the at least one measurement configuration comprising a condition for accessing a target primary cell in a secondary cell group of a target secondary node, the target secondary node being associated with a conditional handover to the target primary node; and

[0120] At least one measurement variable is created for the received at least one measurement configuration.

[0121] In some examples, the at least one measurement configuration is a source primary cell measurement configuration.

[0122] In some examples, creating at least one measurement variable for the received at least one measurement configuration includes updating at least one measurement variable associated with a source primary cell to include a measurement identifier associated with a condition for accessing a target primary cell in a secondary cell group.

[0123] In some examples, the computer program includes instructions for causing the apparatus to at least perform the following:

[0124] An indication is received to maintain the following measurement information after application of the target primary cell measurement configuration, for evaluating the conditions for accessing the target primary cell in the secondary cell group associated with the second measurement identifier in the target primary cell measurement configuration, the measurement information being associated with the conditions for accessing the target primary cell in the secondary cell group associated with the measurement identifier.

[0125] In some examples, the indication includes a second measurement identification.

[0126] In some examples, at least one measurement configuration includes a target primary cell measurement configuration.

[0127] In some examples, creating at least one measurement variable includes creating at least one independent measurement variable for the target primary cell measurement configuration.

[0128] In some examples, the computer program includes instructions for causing the apparatus to at least perform the following:

[0129] An indication is received to maintain measurement information after application of the target primary cell measurement configuration, the measurement information being used to evaluate conditions for accessing the target primary cell in the secondary cell group.

[0130] In some examples, the indication includes an indication of a measurement identifier that is associated with a condition for accessing a target primary cell in the secondary cell group in a target primary cell measurement configuration.

[0131] According to various but not necessarily all embodiments, there is provided an apparatus comprising:

[0132] at least one processor; and

[0133] at least one memory including computer program code,

[0134] The at least one memory stores instructions that, when executed by the at least one processor, cause the apparatus to at least:

[0135] receiving a handover request; and

[0136] determining a condition for accessing a target primary cell in a secondary cell group of a target secondary node, the target secondary node being associated with a conditional handover to the target primary node;

[0137] generating a measurement identifier to be associated with a condition for accessing a target primary cell in a secondary cell group in a target primary cell measurement configuration;

[0138] including the generated measurement identifier and the determined condition in a target primary cell measurement configuration;

[0139] Sending a target primary cell measurement configuration to the source primary node; and

[0140] An indication is sent to maintain measurement information after application of the target primary cell measurement configuration, the measurement information being used to evaluate conditions for accessing the target primary cell in the secondary cell group.

[0141] In some examples, the indication includes a sign.

[0142] In some examples, the indication includes: an indication for maintaining measurement information after conditional handover CHO is performed, the measurement information being used to evaluate conditions for accessing a target primary cell in the secondary cell group.

[0143] According to various but not necessarily all embodiments, there is provided an apparatus comprising:

[0144] at least one processor; and

[0145] at least one memory including computer program code,

[0146] The at least one memory stores instructions that, when executed by the at least one processor, cause the apparatus to at least:

[0147] receiving a target primary cell measurement configuration from the target primary node, the target primary cell measurement configuration including: a measurement identifier and a condition for accessing a target primary cell in a secondary cell group of the target secondary node, the target secondary node being associated with a conditional handover to the target primary node;

[0148] receiving an indication to maintain measurement information after application of a target primary cell measurement configuration, the measurement information being used to evaluate a condition for accessing a target primary cell in a secondary cell group; and

[0149] Send the target primary cell measurement configuration and indication to the user equipment.

[0150] In some examples, the indication includes a sign.

[0151] According to various but not necessarily all embodiments, there is provided an apparatus comprising:

[0152] at least one processor; and

[0153] at least one memory including computer program code,

[0154] The at least one memory stores instructions that, when executed by the at least one processor, cause the apparatus to at least perform at least a portion of one or more methods disclosed herein.

[0155] According to various, but not necessarily all, embodiments, an apparatus is provided that includes means for performing at least a portion of one or more of the methods disclosed herein.

[0156] According to various but not necessarily all examples, examples are provided as claimed in the following claims.

[0157] A description of a function should also be considered to disclose any means suitable for performing that function. BRIEF DESCRIPTION OF THE DRAWINGS

[0158] Some examples will now be described with reference to the accompanying drawings, in which:

[0159] Figure 1 An example of the subject matter described herein is shown;

[0160] Figure 2 Another example of the subject matter described herein is shown;

[0161] Figure 3 Another example of the subject matter described herein is shown;

[0162] Figure 4 Another example of the subject matter described herein is shown;

[0163] Figure 5Another example of the subject matter described herein is shown;

[0164] Figure 6 Another example of the subject matter described herein is shown;

[0165] Figure 7 Another example of the subject matter described herein is shown;

[0166] Figure 8 Another example of the subject matter described herein is shown;

[0167] Fig. 9 Another example of the subject matter described herein is shown;

[0168] Fig.10 Another example of the subject matter described herein is shown;

[0169] Fig.11 Another example of the subject matter described herein is shown;

[0170] Fig. 12A Another example of the subject matter described herein is shown; and

[0171] Fig. 12B Another example of the subject matter described herein is shown.

[0172] These drawings are not necessarily to scale. For clarity and brevity, certain features and views of the drawings may be schematically illustrated or scaled up. For example, for ease of explanation, the size of some elements in the drawings may be enlarged relative to other elements. Similar reference numerals are used to represent similar features in the drawings. For clarity, not all reference numerals need to be shown in all drawings.

[0173] definition

[0174] Master Node (MN) :

[0175] A network node that provides control plane connectivity to the core network.

[0176] Master Cell Group (MCG) :

[0177] The cell group associated with the MN includes a PCell and (multiple) SCells.

[0178] Secondary Node (SN) :

[0179] A network node that provides additional radio resources to a UE but is not a MN.

[0180] Secondary Cell Group (SCG) :

[0181] The cell group associated with a SN includes a PSCell and (multiple) SCells.

[0182] PCell :

[0183] The cell used for uplink / downlink connection to the MN. The cell of the MCG used to initiate initial access to the MN.

[0184] PSCell :

[0185] The cell used for uplink / downlink connection to the SN. The cell of the SCG used to initiate initial access to the SN.

[0186] Conditional Switch (CHO) :

[0187] A handover procedure that is triggered by the UE only if the prepared candidate cells satisfy the configured execution condition(s). The condition(s) are pre-configured by the network. In 3GPP, the conditional handover execution condition is specified by condExecutionCond in the CondReconfigToAddModList information element within the ConditionalReconfiguration information element within the RRCReconfiguration message.

[0188] Dual Connection sex (DC) :

[0189] The UE has simultaneous connections to both the MN and the SN. This is an operation mode of a UE in RRC_CONNECTED state, configured with a primary cell group and a secondary cell group.

[0190] Configuration Information :

[0191] Information used to configure the operation of the UE. In 3GPP, the configuration information may be provided, for example, in an RRCReconfiguration message.

[0192] The term "configuration information includes" and an entity (e.g., a handover execution condition for a primary cell; an SN addition condition for dual connectivity with a primary cell, etc.) may mean that the configuration information includes information sufficient to obtain the entity. It may include or may not include all parameters of the entity, it may instead include a pointer to the entity, or parameters of the entity, or may mean that the configuration includes the entity.

[0193] In 3GPP, the RRCReconfiguration message specifies the ConditionalReconfiguration information element, which provides additional conditions for DC. The ConditionalReconfiguration information element includes the CondReconfigToAddModList information element. The CondReconfigToAddModList information element includes condExecutionCond and condRRCReconfig. The (multiple) handover execution conditions for the primary cell are specified by condExecutionCond. The RRCReconfiguration message to be applied when the specified conditions are met is provided by condRRCReconfig.

[0194] Measurement configuration :

[0195] Configuration information for configuring the UE to perform measurement(s). In 3GPP, for example, the measurement configuration may be provided in an RRCReconfiguration message. The term "[entity] measurement configuration" (eg, source primary cell measurement configuration) may mean a measurement configuration prepared by the entity.

[0196] It may include one or more measurement objects and one or more reporting configurations associated with one or more measurement identities.

[0197] The MeasConfig information element defined in TS 38.331 may be included.

[0198] Measurement object :

[0199] Defines one or more objects that the UE is to measure, such as carrier frequencies. May include a list of cells that the UE should consider for measurement (e.g., whitelist and blacklist) and / or frequency / cell specific parameters used in a measurement event, such as a frequency specific offset of the frequency of a neighboring cell and / or a cell specific offset of a neighboring cell.

[0200] Report Configuration :

[0201] Defines the configuration of measurement reports issued by the UE to the network. Indicates the measurement quality (e.g., received signal received power (RSRP) and / or reference signal received quality (RSRQ)), and whether the measurement should be reported periodically or based on measurement events. In the latter case, the configuration can specify (multiple) events that should be used, such as A3 events and their corresponding parameters, such as trigger time, hysteresis, etc. Conditional switching to the primary node and / or secondary node can be configured in the reporting configuration, such as conditional switching (CHO) conditions and / or conditional PSCell addition and change (CPAC) conditions.

[0202] Measurement ID :

[0203] An identifier that may be associated with a condition for accessing a cell (such as a primary cell of a secondary cell group). An identifier that may be an identifier in a measurement configuration that associates a measurement object with a reporting configuration.

[0204] Measured variables :

[0205] In DC, the UE may receive two independent measurement configurations from the source MN and SN. For each measurement configuration, the UE maintains at least two measurement variables VarMeasConfig and VarMeasReportList. The UE variable VarMeasConfig includes the cumulative configuration of the measurements to be performed by the UE (including intra-frequency, inter-frequency and inter-RAT mobility measurements). The UE variable VarMeasReportList includes information about the measurements for which the triggering conditions have been met. DETAILED DESCRIPTION

[0206] Figure 1 An example of a network 100 is illustrated, which includes a plurality of network nodes, including a terminal node 110, an access node 120, and one or more core nodes 129. The terminal node 110 and the access node 120 communicate with each other. The one or more core nodes 129 communicate with the access node 120.

[0207] In this example, the network 100 is a wireless telecommunications network in which at least some of the terminal nodes 110 and access nodes 120 communicate with each other using transmission / reception of radio waves / signals.

[0208] In some examples, one or more core nodes 129 can communicate with each other. In some examples, one or more access nodes 120 can communicate with each other.

[0209] The network 100 may be a cellular network comprising a plurality of cells 122, each cell being served by an access node 120. The interface between the terminal node 110 and the access nodes 120 defining the cells 122 is a wireless interface 124 in this example.

[0210] The access node 120 is a cellular radio transceiver. The terminal node 110 is a cellular radio transceiver.

[0211] In the illustrated example, the cellular network 100 is a 3rd Generation Partnership Project (3GPP) network in which the terminal nodes 110 are user equipments (UEs) and the access nodes 120 are base stations.

[0212] In the example, the network 100 is an Evolved Universal Terrestrial Radio Access Network (E-UTRAN). The E-UTRAN consists of E-UTRAN NodeBs (eNBs) 120 to provide E-UTRA user plane and control plane (RRC) protocol terminations to the UE 110. The eNBs 120 are interconnected to each other by means of an X2 interface 126. The eNBs are also connected to a Mobility Management Entity (MME) 129 by means of an S1 interface 128.

[0213] In another example, the network 100 is a Next Generation (or New Radio NR) Radio Access Network (NG-RAN). The NG-RAN consists of gNodeBs (gNBs) 120 to provide user plane and control plane (RRC) protocol terminations to the UEs 110. The gNBs 120 are interconnected to each other by means of an Xn interface 126. The gNBs are also connected to an access and mobility management function (AMF) by means of an N2 interface 128.

[0214] In an example, the network 100 may include a combination of E-UTRAN and NG-RAN.

[0215] User equipment includes mobile devices. Where reference is made to user equipment, whenever possible, the reference includes and encompasses reference to mobile devices.

[0216] The UE 150 may perform a handover procedure to change a serving cell of the UE 150. In an example, the handover procedure may be a conditional handover procedure.

[0217] The conditional handover (CHO) procedure may be viewed as a handover triggered by the UE 150 when one or more handover execution conditions are met. The one or more handover execution conditions may be pre-configured by the network 100.

[0218] In the example, the UE 150 starts evaluating the execution condition(s) of the CHO candidate cell upon receiving the CHO configuration, and executes the handover command when the CHO candidate cell satisfies the execution condition(s). When the candidate cell satisfies the execution condition(s), the UE 150 may stop evaluating the execution condition(s) for other candidate cells.

[0219] In an example, dual connectivity (DC) may be used to provide additional radio resources to UE 150 .

[0220] In DC, the serving cell set configured for UE 150 has two subsets: a master cell group (MCG), including serving cells of a master node (MN) 152 ; and a secondary cell group (SCG), including serving cells of a secondary node (SN) 153 .

[0221] In an example, conditional handover with dual connectivity may be configured. UE 150 may be configured with execution condition(s) for CHO to one or more target MNs 154, and execution condition(s) for handover to one or more target SNs 156.

[0222] In an example, during conditional handover, terminal node 110 (such as UE 150) may be configured to efficiently manage measurement information and may efficiently manage the measurement information.

[0223] Figure 2 An example of method 200 is illustrated.

[0224] In the example, Figure 2 It can be considered as illustrating a variety of methods. For example, Figure 2 One or more actions at multiple participants / entities are illustrated. In the example, Figure 2 It may be considered as illustrating various methods performed by individual actors / entities.

[0225] about Figure 2 One or more of the features discussed may be found in other drawings.

[0226] exist Figure 2 In the example, multiple devices send and / or receive one or more signals and / or one or more messages via and / or through and / or using a network. In the example, any suitable form of communication in any suitable network can be used. For example, Figure 1 at least a portion of the network 100.

[0227] So, in the example, Figure 2 The multiple devices in the form of Figure 1 At least a portion of the network 100.

[0228] In the illustrated example, the terminal node 110 and the three access nodes 120 send and / or receive one or more signals and / or one or more messages. Figure 2 In the example of , the terminal node 110 is a UE 150 , and the three access nodes 120 are a source MN 152 , a target MN 154 , and a target SN 156 .

[0229] In the example ( Figure 2 ), UE 150 may also be connected to the source SN.

[0230] In the example, Figure 2 Communications and / or transmissions between the elements illustrated in FIG. 1 may occur via any number of intervening elements, including no intervening elements.

[0231] Despite Figure 2 One UE 150 is illustrated in the example of FIG. 1 , but any suitable number of UEs 150 may be included in the example.

[0232] Similarly, in examples, any suitable number of network nodes may be included.

[0233] In an example, the method 200 and / or portions of the method 200 may be viewed as a method of enhancing conditional switching.

[0234] In an example, the method 200 and / or one or more portions of the method 200 may be viewed as a method of enhancing conditional handover with dual connectivity.

[0235] In an example, the method 200 and / or one or more portions of the method 200 may be viewed as a method of processing a measured variable.

[0236] In an example, the method 200 and / or one or more parts of the method 200 may be viewed as a method of processing UE measurement information.

[0237] In the illustrated example, the location of the blocks indicates the entity that performs the action(s). For example, block 212 is performed at / by source MN 152.

[0238] At block 202, from the perspective of the source MN 152, the method 200 includes establishing a connection to the user equipment UE 150 via the source primary cell 174 (Pcell of the source MN 152).

[0239] In some examples, source MN 152 may be considered source MN 152 when a connection to a UE has been established.

[0240] From the perspective of the UE 150 , block 202 includes establishing a connection to the source master node 152 .

[0241] exist Figure 2 In the example of FIG. 1 , this is illustrated by a bidirectional arrow between UE 150 and source MN 152.

[0242] Thus, block 202 may be considered to include establishing a connection between UE 150 and source MN 152 .

[0243] Establishing the connection may be performed in any suitable manner using any suitable method.

[0244] In some examples, establishing a connection includes establishing an active radio link.

[0245] In some examples, establishing a connection includes sending and / or receiving one or more signals.

[0246] In some examples, establishing the connection includes performing a random access procedure. For example, UE 150 may perform a random access procedure with source MN 152 to establish a connection to source MN 152.

[0247] For example, establishing a connection between UE 150 and source MN 152 may result in:

[0248] Direct access of UE 150 to source MN 152;

[0249] Establishment of a radio link between the UE 150 and the source MN 152 / source primary cell 174, the radio link being capable of transmitting data via an uplink (UL) and / or a downlink (DL). For example, the radio link may be established by initiating a RACH procedure at the UE 150;

[0250] The traffic flow between UE 150 and the network is carried out via source MN 152 / source primary cell 174 and via a bearer.

[0251] At block 204 , the method 200 includes providing the source primary cell measurement configuration 148 to the UE 150 .

[0252] In an example, block 204 may be considered to include sending the source primary cell measurement configuration 148 to the UE 150 .

[0253] like Figure 2 illustrates one or more transmission actions of, for example, one or more signals, Figure 2 Corresponding sending / causing transmission(s) features / (s) actions are also illustrated.

[0254] Similarly, for any feature(s) / action(s) that sends / causes transmission, Figure 2 Corresponding receiving / causing to receive(s) feature(s) / (s) actions are also illustrated.

[0255] For example, from the perspective of the source MN 152, block 204 may be viewed as illustrating providing the source primary cell measurement configuration 148 to the UE 150.

[0256] Similarly, from the perspective of the UE 150 , block 204 may be viewed as illustrating receiving the source primary cell measurement configuration 148 .

[0257] Providing the source primary cell measurement configuration 148 to the UE 150 may be performed in any suitable manner using any suitable method.

[0258] In an example, providing the source primary cell measurement configuration 148 to the UE 150 includes sending / receiving one or more signals and / or messages.

[0259] At block 206, from the perspective of the target MN 154, the method 200 includes receiving the handover request 151. Thus, from the perspective of the source MN 152, block 206 illustrates sending the handover request 151.

[0260] Switch request 151 may have any suitable form and may be sent in any suitable manner using any suitable method.

[0261] In an example, receiving the handover request 151 includes receiving one or more signals and / or messages.

[0262] Receiving a handover request 151 may include receiving a handover request message.

[0263] The handover request 151 may include any suitable information. In an example, the handover request 151 includes information for requesting the target MN 154 to prepare for handover of the connection with the UE 150.

[0264] In some examples, the handover request indicates that a conditional handover is to be configured.

[0265] At block 208 , the method 200 includes determining information 158 to allow determination of a condition 140 for accessing a target primary cell of a secondary cell group 142 (PSCell) of a target secondary node 156 associated with a conditional handover to the target primary node 154 .

[0266] In an example, the condition 140 is associated with the measurement identification 146 generated by the source primary node 152 in the source primary cell measurement configuration 148 .

[0267] Information 158 may be determined in any suitable manner.

[0268] As used herein, the term "determine" (and its grammatical variations) may include, but are not limited to, calculating, computing, processing, deriving, investigating, searching (e.g., searching in a table, database, or other data structure), confirming, etc. In addition, "determining" may include receiving (e.g., receiving information), accessing (e.g., accessing data in a memory), etc. In addition, "determining" may include solving, selecting, choosing, establishing, etc.

[0269] In an example, determining the information 158 includes sending / receiving one or more signals and / or messages including the information to / from the target SN 156. Figure 2 In the example of , this is illustrated by the bidirectional arrow between the box 208 and the target SN 156.

[0270] For example, the target MN 154 may send an SN add request message to the target SN 156, and the target SN 156 may send an SN add response message to the target MN 154.

[0271] The information 158 may include any suitable information. For example, the information 158 may include any suitable information for enabling determination of the condition 140 for accessing a target primary cell of the secondary cell group 142 of the target secondary node 156 associated with the conditional handover to the target primary node 154 .

[0272] In an example, the information 158 includes measurement related information. The measurement related information may include information about candidate target PSCell(s).

[0273] In some examples, the measurement-related information includes measurement object information. For example, the measurement object information may include at least one of the following items:

[0274] The PCI and frequency of the prepared target PSCell,

[0275] SSB related configuration: SSB frequency, SSB subcarrier spacing, SSB index to be measured, quasi-co-location relationship between SSB blocks,

[0276] CSI-RS related configuration: the reference frequency of the CSI-RS (see, for example, point A in 38.331),

[0277] Parameters used to derive cell quality measurements: number of beam measurements to be averaged, thresholds for beam measurements used to derive cell quality,

[0278] SMTC (Measurement Timing) configuration,

[0279] White cell list / black cell list.

[0280] In some examples, determining information 158 at block 208 includes determining a condition 140 for accessing a target primary cell of the secondary cell group 142 .

[0281] Therefore, in the example, the determined information 158 includes the condition 140 for accessing the target primary cell of the secondary cell group 142 .

[0282] Condition 140 may be determined in any suitable manner using any suitable method.

[0283] In an example, determining the condition 140 includes processing and / or evaluating information (eg, measurement-related information) to determine the condition 140 .

[0284] Conditions 140 may include any suitable conditions 140 .

[0285] In some examples, condition 140 may be a radio signal condition. For example, condition 140 may include a received radio signal power condition and / or a received radio signal quality condition.

[0286] In an example, the condition 140 may be based on and / or related to a reference signal received power (RSRP) and / or a reference signal received quality (RSRQ).

[0287] In an example, condition 140 may include, for example, an A3, A4, or A5 event.

[0288] In some examples, condition 140 may be a Conditional PSCell Addition and Change (CPAC) condition.

[0289] In an example, a plurality of conditions 140 may be determined.

[0290] In an example, accessing a target primary cell or any other suitable cell in the secondary cell group includes performing a random access procedure with the cell.

[0291] In an example, accessing a target primary cell or any other suitable cell in the secondary cell group includes establishing a connection with the cell.

[0292] In some examples, determining information 158 includes determining a measurement object and / or a reporting configuration for condition 140 for accessing a target primary cell of secondary cell group 142 .

[0293] In an example, the condition 140 may be included in a report configuration.

[0294] Therefore, in an example, the information 158 includes a measurement object and a reporting configuration for the condition 140 for accessing a target primary cell of the secondary cell group 142 .

[0295] At box 210, the method 200 includes: sending the determined information 158 to the source master node 152.

[0296] Thus, in the example, box 210 includes: sending information 158 to allow determination of a condition 140 for a target primary cell of a secondary cell group 142 of a target secondary node 156 associated with a conditional handover to a target primary node 154, which condition will be associated with a measurement identifier 146 generated by the source primary node 152 in a source primary cell measurement configuration 148.

[0297] therefore, Figure 2 A method 200 is illustrated, which includes: receiving a handover request 151; and sending information 158 to allow determination of a condition 140 for a target primary cell of a secondary cell group 142 of a target secondary node 156 associated with a conditional handover to a target primary node 154, which condition will be associated with a measurement identifier generated by the source primary node 152 in a source primary cell measurement configuration 148.

[0298] As previously described, in some examples, the determined information 158 includes the condition 140 .

[0299] Thus, in an example, method 200 includes, for example, determining at / by target MN 154 conditions 140 for accessing a target primary cell of secondary cell group 142, and wherein sending information 158 to allow determination of conditions for accessing the target primary cell of secondary cell group 142 includes sending the determined conditions.

[0300] As previously described, in some examples, the determined information 158 includes a reporting configuration of the condition 140 for accessing a target primary cell of the secondary cell group 142 .

[0301] Thus, in an example, method 200 includes, for example, determining at / by the target MN 154 a reporting configuration of conditions 140 for accessing a target primary cell of a secondary cell group 142, and wherein sending information 158 to allow determination of conditions 140 for accessing the target primary cell of the secondary cell group 142 includes sending the determined reporting configuration.

[0302] The determined information 158 may be sent as part of a handover request confirmation message.

[0303] In an example, the target MN 154 determines the target primary cell measurement configuration 162. Thus, in some examples, the method 200 includes determining the target primary cell measurement configuration 162, for example at / by the target MN 154.

[0304] The target primary cell measurement configuration 162 may include a condition 140 for accessing a target primary cell of the secondary cell group 142 .

[0305] In an example, the target MN 154 may send the target primary cell measurement configuration 162 to the source MN 152. Thus, in an example, the method 200 includes sending the target primary cell measurement configuration 162 to the source MN 152 and receiving the target primary cell measurement configuration 162 by the source MN 152 accordingly.

[0306] In some examples, in addition to the determined information 158 , a target primary cell measurement configuration 162 is also sent.

[0307] At block 212 , the method 200 includes determining a condition 140 for accessing a target primary cell of the secondary cell group 142 of the target secondary node 156 associated with the conditional handover to the target primary node 154 .

[0308] The condition 140 may be or include any suitable condition 140. In an example, the condition 140 is or includes the condition 140 as described with respect to block 208.

[0309] Thus, in some examples, condition 140 includes a Conditional PSCell Addition and Change (CPAC) condition.

[0310] Block 212 may be performed in any suitable manner using any suitable method.

[0311] Determining conditions 140 may include receiving and / or processing information.

[0312] In some examples, determining a condition 140 for accessing a target primary cell in a secondary cell group includes: receiving information 158 ; and determining the condition based at least in part on the received information 158 .

[0313] The information 158 may be the information 158 received from the target MN 154. Thus, in an example, the information 158 may be the information 158 determined at block 208 and may be as described with respect to block 208.

[0314] Thus, in some examples, information 158 is received from target MN 154 and includes measurement-related information.

[0315] Therefore, in some examples, the measurement-related information includes measurement object information.

[0316] In the example, the source MN 152 generates a report configuration of the condition 140 for accessing a target primary cell in the secondary cell group 142 .

[0317] Thus, in some examples, the method 200 includes generating, for example at and / or by the source MN 152 , a report configuration of the conditions 140 for accessing a target primary cell in the secondary cell group 142 .

[0318] In the example, condition 140 is included in the determined report configuration.

[0319] As described above, in some examples, block 208 may include determining condition 140 for accessing a target primary cell of the secondary cell group 142 .

[0320] Thus, in some examples, the conditions 140 for accessing a target primary cell of the secondary cell group 142 determined at block 210 include reception conditions 140 .

[0321] In the example, the source MN 152 receives a report configuration of the condition 140 for accessing a target primary cell of the secondary cell group 142 .

[0322] Thus, in some examples, the method 200 includes receiving, at and / or by the source MN 152 , a reporting configuration of the conditions 140 for accessing a target primary cell of the secondary cell group 142 .

[0323] At block 210 , a reporting configuration for the condition 140 may be received along with the information 158 .

[0324] In some examples, at block 210 , a reporting configuration for condition 140 is received separately from information 158 from the target MN.

[0325] At block 214 , the method 200 includes generating a measurement identification 146 to be associated in an updated source primary cell measurement configuration 148a with a condition 140 for accessing a target primary cell of a secondary cell group 142 of a target secondary node 156 associated with a conditional handover to the target primary node 154 .

[0326] Thus, in an example, if the target MN 154 provides measurement object information, the source MN 152 may decide on a reporting configuration and generate a measurement ID 146 (eg, see block 214).

[0327] Thus, in an example, if the target MN 154 provides a measurement object and a reporting configuration, the source MN 152 may determine the measurement ID 146 (eg, see block 214) to associate the received measurement object with the received reporting configuration.

[0328] In an example, the source MN 152 includes the generated measurement ID 146, as well as the received measurement object and the received or generated reporting configuration in its own measurement configuration (eg, see block 216).

[0329] Block 214 may be performed in any suitable manner using any suitable method.

[0330] In an example, generating the measurement identification 146 at block 214 includes creating and / or selecting and / or choosing and / or deciding the measurement identification 146 .

[0331] In some examples, generating the measurement identification 146 at block 214 includes selecting the measurement identification 146 from a predetermined set of measurement identifications.

[0332] like Figure 2 As illustrated by the location of block 214 in the example of FIG. 1 , block 214 is performed at and / or by source MN 152 in the example.

[0333] Therefore, in the example, the measurement identifier 146 associated with the condition 140 of the target primary cell of the secondary cell group 142 for accessing the target secondary node 156 associated with the conditional handover to the target primary node 154 in the updated source primary cell measurement configuration 148a is generated by the source MN 152 rather than by the target MN 154.

[0334] That is, in the example, before the source MN 152 receives the information 158 at box 210, the measurement identifier 146 associated with the condition 140 of the target primary cell of the secondary cell group 142 for accessing the target secondary node 156 associated with the conditional handover to the target primary node 154 in the updated source primary cell measurement configuration 148a will not be generated and / or created.

[0335] That is, in the example, after the source MN 152 receives the information 158 at box 210, a measurement identifier 146 associated with the condition 140 of the target primary cell of the secondary cell group 142 for accessing the target secondary node 156 associated with the conditional switching to the target primary node 154 is generated and / or created in the updated source primary cell measurement configuration 148a.

[0336] At block 216 , the method 200 includes including the generated measurement identification 146 and the condition 140 for accessing the target primary cell of the secondary cell group 142 in an updated source primary cell measurement configuration 148 a .

[0337] Block 216 may be performed in any suitable manner using any suitable method.

[0338] In an example, including the generated measurement identification 146 and the condition 140 for accessing the target primary cell of the secondary cell group 142 in the updated source primary cell measurement configuration 148a includes inserting and / or entering and / or including data and / or information in one or more data structures.

[0339] In some examples, block 216 includes associating and / or connecting and / or linking and / or correlating the generated measurement identification 146 and the condition 140 for accessing the target primary cell of the secondary cell group 142 in the updated source primary cell measurement configuration 148a.

[0340] In some examples, block 216 includes associating the generated measurement identification 146 with the measurement object and a reporting configuration of the condition 140 for accessing the primary cell of the secondary cell group 142 .

[0341] In some examples, block 216 includes including the generated measurement identification 146 in a data structure associated with an identifier of the measurement object and an identifier of a reporting configuration of the condition 140 for accessing a target primary cell of the secondary cell group 142 .

[0342] Therefore, in the example, the updated source primary cell measurement configuration 148 a includes: the generated measurement identification 146 , and the measurement object information received from the target MN 154 .

[0343] Thus, in the example, the updated source primary cell measurement configuration 148a includes the generated reporting configuration, ie, the reporting configuration generated by the source MN 152 in the example.

[0344] Thus, in the example, the updated source primary cell measurement configuration 148a includes the reporting configuration received from the target MN 154 .

[0345] In an example, the updated source primary cell measurement configuration 148a includes a conditional handover (CHO) execution condition.

[0346] In some examples, there are multiple conditions 140 for accessing multiple target primary cells of the secondary cell group 142 .

[0347] In some examples, the updated source primary cell measurement configuration 148a includes: a first CHO execution condition and a first condition 140a for accessing a target primary cell of a secondary cell group 142a associated with a first generated measurement identifier ID1, and a second CHO execution condition and a second condition 140b for accessing a target primary cell of a secondary cell group 142b associated with a second generated measurement identifier ID2, wherein the first condition 140a and the second condition 140b for accessing the target primary cell of the secondary cell groups 142a, 142b include a conditional PSCell addition and change (CPAC) condition.

[0348] In an example, the first CHO execution condition and the second CHO execution condition may be the same.

[0349] At box 218, from the perspective of UE 150, method 200 includes: receiving at least one measurement configuration 170 from the source primary node 152, the at least one measurement configuration containing conditions 140 for accessing a target primary cell of the secondary cell group 142 of the target secondary node 156 associated with the conditional handover to the target primary node 154.

[0350] From the perspective of the source MN 152 , block 218 includes sending to the UE 150 at least one measurement configuration 170 containing the conditions 140 for accessing a target primary cell of the secondary cell group 142 of the target secondary node 156 associated with the conditional handover to the target primary node 154 .

[0351] In the example, the condition 140 is the condition 140 determined at block 212 .

[0352] At least one measurement configuration 170 may be sent as part of the RRC reconfiguration message.

[0353] The at least one measurement configuration 170 may include one or more of any suitable measurement configurations 170 .

[0354] In some examples, at least one measurement configuration 170 is a source primary cell measurement configuration 148 .

[0355] In some examples, the at least one measurement configuration 170 is the updated source primary cell measurement configuration 148a of block 216 .

[0356] Thus, in an example, block 218 includes sending the updated source primary cell measurement configuration 148a to the user equipment 150 .

[0357] therefore, Figure 2 A method 200 is illustrated, the method comprising:

[0358] Establishing a connection to the user equipment UE 150 via the source primary cell 174;

[0359] Providing source primary cell measurement configuration 148 to UE 150;

[0360] determining a condition for accessing a target primary cell of the secondary cell group 142 of the target secondary node 156 associated with the conditional handover to the target primary node 154;

[0361] Generate a measurement identifier 146, which will be associated with a condition for accessing a target primary cell of the secondary cell group 142 in an updated source primary cell measurement configuration 148a;

[0362] Include the generated measurement identifier 146 and the condition for accessing the target primary cell of the secondary cell group 142 in the updated source primary cell measurement configuration 148a;

[0363] The source primary cell measurement configuration 148 a to be updated is sent to the user equipment 150 .

[0364] In some examples, at least one measurement configuration 170 includes a target primary cell measurement configuration 162 .

[0365] The target primary cell measurement configuration 162 may include: the target primary cell measurement configuration 162 received by the source MN 152 from the target MN 154 .

[0366] At block 220 , the method 200 includes creating at least one measurement variable 172 for the received at least one measurement configuration 170 .

[0367] therefore, Figure 2 A method 200 is illustrated, the method comprising:

[0368] Establish a connection to the source master node 152;

[0369] receiving at least one measurement configuration 170 from the source primary node 152, the at least one measurement configuration containing conditions for accessing a target primary cell of the secondary cell group 142 of the target secondary node 156 associated with the conditional handover to the target primary node 154; and

[0370] At least one measurement variable 172 is created for the at least one measurement configuration 170 received.

[0371] In examples, creating at least one measurement variable 172 may be performed in any suitable manner using any suitable method.

[0372] In some examples, creating at least one measurement variable 172 includes updating at least one measurement variable 172 and / or creating at least one measurement variable 172 .

[0373] As described above, in an example, the at least one measurement configuration 170 is a source primary cell measurement configuration 148 , and may be the updated source primary cell measurement configuration 148 a of block 216 .

[0374] In an example, creating at least one measurement variable 172 for the received at least one measurement configuration 170 includes updating at least one measurement variable 172 associated with a source primary cell 174 to include a measurement identification 146 associated with a condition for accessing a target primary cell of the secondary cell group 142 .

[0375] In some examples, the measurement identification 146 is the measurement identification 146 generated at block 214 .

[0376] As described above, in an example, the at least one measurement configuration 170 includes the target primary cell measurement configuration 162 .

[0377] In some examples, the target primary cell measurement configuration 162 may include a target primary cell measurement configuration 162 received by the source MN 152 from the target MN 154 .

[0378] In an example, creating at least one measurement variable 172 includes creating at least one independent measurement variable 172 for the target primary cell measurement configuration 162 .

[0379] In some examples, the at least one measurement configuration 170 may include a plurality of target primary cell measurement configurations 162 , and creating the at least one measurement variable 172 may include creating at least one independent measurement variable 172 for each target primary cell measurement configuration 162 .

[0380] As described above, in some examples, at block 212 , source MN 152 receives condition 140 for accessing a target primary cell of secondary cell group 142 from target MN 154 , performs blocks 214 and 216 , and sends updated source primary cell measurement configuration 148 a to UE 150 .

[0381] In some such examples, the target MN 154 determines a target primary cell measurement configuration 162 and associates the condition 140 for accessing the target primary cell of the secondary cell group 142 with a measurement identifier in the target primary cell measurement configuration 162, which can be considered as a second measurement identifier 166. The target MN 154 can provide the target primary cell measurement configuration 162 to the source MN 152.

[0382] In some such examples, the target MN 154 sends an indication 160 of a measurement identity associated with the condition 140 for accessing the target primary cell of the secondary cell group 142 in the target primary cell measurement configuration 162 to the source MN 152, which measurement identity may be considered as a second measurement identity 166.

[0383] Thus, in an example, the method 200 includes sending, for example at and / or by the target MN, an indication 160 of a measurement identity associated with the condition 140 for accessing the target primary cell of the secondary cell group 142 in a target primary cell measurement configuration 162 .

[0384] The indication may be sent in any suitable manner using any suitable method.

[0385] In some examples, indication 160 may be sent with information 158 at block 210 , or may be sent separately from information 158 at block 210 .

[0386] In an example, the indication 160 may be included in a handover request confirm message.

[0387] The indication 160 may have any suitable form. For example, the indication may have any suitable form for indicating a measurement identifier associated with the condition 140 for accessing the target primary cell of the secondary cell group 142 in the target primary cell measurement configuration 162. The indication 160 may include any suitable flag or indicator, etc.

[0388] In some examples, the indication 160 of the measurement identity includes: a measurement identity associated with the condition 140 for accessing the target primary cell of the secondary cell group 142 in the target primary cell measurement configuration 162 .

[0389] Therefore, from the perspective of the source MN 152, the method 200 may include, for example, receiving at and / or by the source MN 152 an indication 160 of a second measurement identifier 166 as described above, the second measurement identifier being associated with the condition 140 for accessing the target primary cell of the secondary cell group 142 in the target primary cell measurement configuration 162.

[0390] In an example, the source MN 152 may send an indication 164 to the UE 150 for maintaining measurement information after application of a target primary cell measurement configuration 162, the measurement information being associated with an evaluation of a condition 140 for accessing a target primary cell of a secondary cell group 142, the condition 140 being associated with a generated measurement identifier 146, the measurement information being used to evaluate the condition 140 for accessing a target primary cell of a secondary cell group 142 associated with a second measurement identifier 162.

[0391] Thus, method 200 may include:

[0392] Receiving, for example at and / or by the source MN 152, an indication 160 of a second measurement identity 166 associated with the condition 140 for accessing the target primary cell of the secondary cell group 142 in the target primary cell measurement configuration 162; and

[0393] An indication 164 is sent to the UE 150 for maintaining measurement information after application of the target primary cell measurement configuration 162, the measurement information being associated with an evaluation of a condition 140 for accessing the target primary cell of the secondary cell group 142, the condition 140 being associated with the generated measurement identifier 146, the measurement information being used to evaluate the condition 140 for accessing the target primary cell of the secondary cell group 142 associated with the second measurement identifier 162.

[0394] The indication 164 for maintaining may have any suitable form. For example, the indication 164 for maintaining may have any suitable form for indicating to the UE 150 that the indication 164 for maintaining the measurement information is maintained after the application of the target primary cell measurement configuration 162, the measurement information is associated with the evaluation of the condition 140 for accessing the target primary cell of the secondary cell group 142, the condition 140 is associated with the generated measurement identifier 146, and the measurement information is used to evaluate the condition 140 for accessing the target primary cell of the secondary cell group 142 associated with the second measurement identifier 162. The indication 164 for maintaining may include any suitable flag or indicator, etc.

[0395] Instruction to hold 164 may be sent in any suitable manner using any suitable method.

[0396] In some examples, the indication 164 to hold may be sent at block 218 , or may be sent separate from block 218 .

[0397] In an example, the indication 164 to maintain may be included in an RRC reconfiguration message.

[0398] In some examples, source MN 154 sends an indication 160 of a measurement identifier to UE 150 , which may be considered a second measurement identifier 166 , which is associated with condition 140 for accessing a target primary cell of secondary cell group 142 in target primary cell measurement configuration 162 .

[0399] Indication 160 may be sent in any suitable manner using any suitable method.

[0400] In some examples, indication 160 may be sent at block 218 , or may be sent separate from block 218 .

[0401] In an example, the indication 160 may be included in an RRC reconfiguration message.

[0402] In some examples, the indication 164 to maintain may include an indication 160 of a measurement identity, which may be considered as a second measurement identity 166 .

[0403] Therefore, from the perspective of UE 150, method 200 may include: receiving an indication 164 to maintain measurement information after application of a target primary cell measurement configuration 162, the measurement information being associated with a condition 140 for accessing a target primary cell of a secondary cell group 142, the condition 140 being associated with a measurement identifier 146, the measurement information being used to evaluate the condition 140 for accessing the target primary cell of the secondary cell group 142, the condition being associated with a second measurement identifier 162 in the target primary cell measurement configuration 162.

[0404] The indication 164 for maintaining may be as described above. For example, the indication 164 may include the second measurement identifier 166.

[0405] As described above, in some examples, the at least one measurement configuration 170 received by the UE 150 at block 218 includes a target primary cell measurement configuration 162 , and the UE 150 creates at least one independent measurement variable 172 for the target primary cell measurement configuration 162 .

[0406] In some such examples, the target MN 154 may provide an indication 164 for maintaining measurement information after application of the target primary cell measurement configuration 162, the measurement information being used to evaluate conditions for accessing the target primary cell of the secondary cell group 142. For example, see Figure 3 .

[0407] An indication 164 to hold may be provided to the source MN 152, for example, in a conditional handover configuration.

[0408] In some examples, the indication to maintain 164 is provided to the source MN 152 as part of a handover request confirm message.

[0409] In some such examples, the indication 164 for maintaining can have any suitable form. For example, the indication 164 for maintaining can have any suitable form for instructing the UE 150 to maintain the measurement information for evaluating the conditions for accessing the target primary cell of the secondary cell group 142 after the application of the target primary cell measurement configuration 162.

[0410] In some examples, indication 164 to hold includes a sign.

[0411] In the example, source MN 152 sends an indication 164 to UE 150 to hold.

[0412] In some examples, indication 164 may be sent at block 218 , or may be sent separate from block 218 .

[0413] Thus, from the perspective of UE 150 , in some such examples, method 200 may include receiving an indication 164 to retain measurement information after application of target primary cell measurement configuration 162 , the measurement information used to evaluate condition 140 for accessing a target primary cell of secondary cell group 142 .

[0414] For example, the UE 150 may receive an indication 164 to maintain measurement information after application of the target primary cell measurement configuration 162, the measurement information being used to evaluate a condition 140 for accessing a target primary cell of the secondary cell group 142, the condition being obtained with respect to the independent at least one measurement variable 172 created for the target primary cell measurement configuration 162.

[0415] Thus, in various examples, source MN 152 may instruct and / or configure UE 150 to maintain measurement information associated and / or related to evaluation of condition 140 for accessing target primary cell of secondary cell group 142 after application of target primary cell measurement configuration 162 .

[0416] At block 222 , the method 200 includes applying the target primary cell measurement configuration 162 .

[0417] For example, the UE 150 may determine that the conditional switching condition is met and apply the target primary cell measurement configuration 162 .

[0418] In an example, the target PCell measurement configuration 162 is included in the conditional reconfiguration of the target cell.By applying the target PCell measurement configuration 162, the UE 150 is configured to perform / perform measurements according to the measurement objects provided in the measurement configuration.

[0419] In some examples, UE 150 may perform a handover to a target MN and may, for example, establish a connection to target MN 154. Figure 2 In the example of , this is illustrated by the bidirectional arrow at box 222.

[0420] At block 224 , the method 200 includes maintaining measurement information associated and / or related to the evaluation of the condition 140 for accessing the target primary cell of the secondary cell group 142 after application of the target primary cell measurement configuration 162 .

[0421] Maintaining measurement information may be performed in any suitable manner using any suitable method.

[0422] For example, maintaining the measurement information may include maintaining the measurement information in at least one data structure.

[0423] For example, maintaining the measurement information may include not resetting and / or not deleting and / or not removing the measurement information.

[0424] The measurement information associated and / or related to the evaluation of the condition 140 for accessing the target primary cell of the secondary cell group 142 may include any suitable information. For example, the measurement information may include any suitable information for the UE to evaluate whether the condition 140 for accessing the target primary cell of the secondary cell group 142 is satisfied.

[0425] In an example, after application of the target primary cell measurement configuration 162 , the UE 150 uses the retained measurement information to evaluate the condition 140 for accessing the target primary cell of the secondary cell group 142 .

[0426] Thus, in an example, the method 200 includes evaluating, at and / or by the UE 150 , a condition 140 for accessing a target primary cell of the secondary cell group 142 using the maintained measurement information following application of the target primary cell measurement configuration 162 .

[0427] In some examples, method 200 includes evaluating, at and / or by UE 150 , a condition 140 for accessing a target primary cell of secondary cell group 142 , the condition associated with second measurement identification 166 in target primary cell measurement configuration 162 , using the maintained measurement information.

[0428] In an example, the method 200 may include multiple target SNs. Therefore, in some examples, multiple conditions for accessing multiple target primary cells of the secondary cell group may be determined and used in the method 200.

[0429] For example, at least one condition may be determined for each target primary cell among a plurality of target primary cells of the secondary cell group.

[0430] In an example, the condition 140 for accessing the target primary cell of the secondary cell group 142 may be one of a plurality of such conditions.

[0431] Figure 2 The illustration of a particular order of blocks in the drawings does not necessarily represent a required or preferred order for the blocks, and the order and arrangement of the blocks may vary. In addition, some blocks may be omitted.

[0432] For example, in some examples, when the source MN sends at least one target primary cell measurement configuration 162 to the UE 150, blocks 212 to 216 may be omitted.

[0433] Examples of the present disclosure are advantageous and provide technical benefits.

[0434] For example, examples of the present disclosure provide that the UE reuses the source primary cell measurement configuration to evaluate conditions associated with accessing a target PSCell prepared by a target MN.

[0435] For example, examples of the present disclosure allow a UE to evaluate conditions associated with accessing a prepared target PSCell by creating independent UE measurement variables for each prepared target PSCell measurement configuration.

[0436] In these examples, the target PCell may still determine the conditions associated with accessing the prepared target PSCell.

[0437] Figure 3 An example of a method 300 is illustrated.

[0438] Figure 3 Similar to Figure 2 , and similarly illustrates multiple devices sending and / or receiving one or more signals and / or one or more messages through and / or via and / or using a network.

[0439] In the example, Figure 3 The multiple devices in the form of Figure 1 At least a portion of the network 100.

[0440] In the example, Figure 3 It can be considered as illustrating a variety of methods. For example, Figure 3 One or more actions at multiple participants / entities are illustrated. In the example, Figure 3 It may be considered as illustrating various methods performed by individual actors / entities.

[0441] In the illustrated example, the terminal node 110 and the three access nodes 120 send and / or receive one or more signals and / or one or more messages. Figure 3 In the example of , the terminal node 110 is a UE 150 , and the three access nodes 120 are a source MN 152 , a target MN 154 , and a target SN 156 .

[0442] In the example ( Figure 3 ), UE 150 may also be connected to the source SN.

[0443] In the example, Figure 3 Communications and / or transmissions between the elements illustrated in FIG. 1 may occur via any number of intervening elements, including no intervening elements.

[0444] Despite Figure 3 One UE 150 is shown in the example of FIG. 1 , but any suitable number of UEs 150 may be included in the example.

[0445] Similarly, in examples, any suitable number of network nodes may be included.

[0446] In an example, the method 300 and / or portions of the method 300 may be viewed as a method for enhancing conditional switching.

[0447] In an example, the method 300 and / or one or more portions of the method 300 may be viewed as a method for enhancing conditional handover with dual connectivity.

[0448] In an example, the method 300 and / or one or more portions of the method 300 may be viewed as a method for processing a measurement variable.

[0449] In an example, the method 300 and / or one or more parts of the method 300 may be viewed as a method for processing UE measurement information.

[0450] In the example shown, the location of the blocks indicates the entity that performs the action(s). For example, block 308 is performed at / by the target MN 154.

[0451] At block 302, method 300 includes establishing a connection between UE 150 and source MN 152. Figure 3 In the example of FIG. 1 , this is illustrated by a bidirectional arrow between UE 150 and source MN 152.

[0452] Block 302 may be as described with respect to Figure 2 As described in block 202 of the example.

[0453] At block 304 , the method 300 includes providing the source primary cell measurement configuration 148 to the UE 150 .

[0454] Block 304 may be as described with respect to Figure 2 As described in block 204 of the example.

[0455] At block 306, from the perspective of the target MN 154, the method 300 includes receiving the handover request 151. Thus, from the perspective of the source MN 152, block 206 illustrates sending the handover request 151.

[0456] Block 306 may be as described with respect to Figure 2 As described in block 206 of the example.

[0457] At block 308 , the method 300 includes determining a condition 140 for accessing a target primary cell of the secondary cell group 142 of the target secondary node 156 associated with the conditional handover to the target primary node 154 .

[0458] Block 308 may be as described in Figure 2 The example of block 208 determines condition 140 as described above.

[0459] At block 310 , the method 300 includes generating a measurement identity to be associated with a condition 140 for accessing a target primary cell of the secondary cell group 142 in a target primary cell measurement configuration 162 .

[0460] Block 310 may be performed in any suitable manner using any suitable method.

[0461] In an example, generating a measurement identification at block 310 includes creating and / or selecting and / or choosing and / or deciding a measurement identification.

[0462] In some examples, generating the measurement identification at block 310 includes selecting the measurement identification from a predetermined set of measurement identifications.

[0463] At block 312 , the method 300 includes including the generated measurement identification and the determined condition 140 in a target primary cell measurement configuration 162 .

[0464] Block 312 may be performed in any suitable manner using any suitable method.

[0465] In an example, including the generated measurement identification and the determined condition 140 in the target primary cell measurement configuration 162 includes inserting and / or entering and / or including data and / or information in one or more data structures.

[0466] In some examples, block 312 includes associating and / or connecting, and / or linking, and / or correlating the generated measurement identification and the condition 140 for accessing the target primary cell of the secondary cell group 142 in the target primary cell measurement configuration 162 .

[0467] In some examples, block 312 includes associating the generated measurement identification with the measurement object and a reporting configuration of the condition 140 for accessing a primary cell of the secondary cell group 142 .

[0468] In some examples, block 312 includes including the generated measurement identification in a data structure associated with an identifier of the measurement object and an identifier of a reporting configuration of the condition 140 for accessing a target primary cell of the secondary cell group 142 .

[0469] At block 314 , from the perspective of the target MN 154 , the method 300 includes sending the target primary cell measurement configuration 162 to the source primary node 152 .

[0470] The target primary cell measurement configuration 162 may be sent as part of the handover request confirm message.

[0471] Therefore, from the perspective of the source MN 152, box 314 includes: receiving a target primary cell measurement configuration 162 from the target primary node 154, the target primary cell measurement configuration including a measurement identifier and a condition 140 for accessing a target primary cell of a secondary group 142 of a target secondary node 156 associated with a conditional handover to the target primary node 154.

[0472] At block 316 , from the perspective of the target MN 154 , the method 300 includes sending an indication 164 for maintaining measurement information for evaluating the condition 140 for accessing the target primary cell of the secondary cell group 142 after application of the target primary cell measurement configuration 162 .

[0473] therefore, Figure 3 A method 300 is illustrated, the method comprising:

[0474] Receiving a switching request 151;

[0475] determining a condition 140 for accessing a target primary cell in a secondary cell group 142 of a target secondary node 156, the target secondary node 156 being associated with a conditional handover to the target primary node 154;

[0476] Generate a measurement identifier, which is associated with a condition 140 for accessing a target primary cell of a secondary cell group 142 in a target primary cell measurement configuration 162;

[0477] including the generated measurement identifier and the determined condition 140 in a target primary cell measurement configuration 162;

[0478] Sending a target primary cell measurement configuration 162 to the source primary node 152; and

[0479] An indication for maintaining measurement information after application of the target primary cell measurement configuration 162 is sent, the measurement information being used to evaluate conditions for accessing the target primary cell in the secondary cell group 142 .

[0480] Despite Figure 3 In the example of , the indication for maintaining 164 is illustrated as being sent separately from the target primary cell measurement configuration 162 , but in some examples, the indication for maintaining 164 may be sent together with the target primary cell measurement configuration 162 .

[0481] For example, the indication 164 to hold may be sent as part of a handover request confirmation message.

[0482] The indication for keeping 164 may have any suitable form. For example, the indication for keeping 164 may have any suitable form for instructing UE 150 to keep measurement information for evaluating conditions for accessing the target primary cell of secondary cell group 142 after application of target primary cell measurement configuration 162.

[0483] In some examples, indication 164 to hold includes a sign.

[0484] In some examples, indication 164 includes an indication for maintaining measurement information after conditional handover (CHO) is performed, the measurement information being used to evaluate a condition for accessing a target primary cell of secondary cell group 142 .

[0485] From the perspective of the source MN 152 , block 316 includes receiving an indication to retain measurement information after application of the target primary cell measurement configuration 162 , the measurement information used to evaluate the condition 140 for accessing the target primary cell of the secondary cell group 142 .

[0486] At block 318, the method 300 includes assigning a conditional switching condition for each target primary cell.

[0487] At block 320 , from the perspective of the source MN 152 , the method 300 includes sending a target primary cell measurement configuration 162 and an indication 164 to the user equipment 150 .

[0488] therefore, Figure 3 A method 300 is illustrated, the method comprising:

[0489] receiving a target primary cell measurement configuration 162 from a target primary node 154, the target primary cell measurement configuration including a condition 140 for accessing a target primary cell of a secondary cell group 142 of a target secondary node 156 associated with a conditional handover to the target primary node 154;

[0490] receiving an indication 164 to maintain measurement information after application of the target primary cell measurement configuration 162, the measurement information used to evaluate the condition 140 for accessing the target primary cell in the secondary cell group; and

[0491] The target primary cell measurement configuration 162 and the indication 164 are sent to the user equipment 150 .

[0492] In an example, the target primary cell measurement configuration 162 and the indication 164 may be sent as part of an RRC reconfiguration message.

[0493] In the example, the source MN 152 also sends a source primary cell measurement configuration 148 to the UE 150 .

[0494] In an example, UE 150 may perform the following steps: Figure 2 One or more of blocks 220, 222, and 224 as described.

[0495] Figure 4 An example of a method 400 is illustrated.

[0496] In an example, the method 400 may be performed by any suitable device including any suitable components for performing the method 400. For example, as described with respect to Fig. 12A and / or Fig. 12B The device described.

[0497] In an example, method 400 may be performed by source MN 152, such as Figure 2 Source MN 152.

[0498] At block 402 , the method 400 includes establishing a connection to the user equipment UE 150 via the source primary cell 174 .

[0499] At block 404 , the method 400 includes providing the source primary cell measurement configuration 148 to the UE 150 .

[0500] At block 406 , the method 400 includes determining a condition 140 for accessing a target primary cell of the secondary cell group 142 of the target secondary node 156 associated with the conditional handover to the target primary node 154 .

[0501] At block 408 , the method 400 includes generating a measurement identification 146 to be associated in an updated source primary cell measurement configuration 148a with a condition 140 for accessing a target primary cell of a secondary cell group 142 of a target secondary node 156 associated with a conditional handover to the target primary node 154 .

[0502] At block 410 , the method 400 includes including the generated measurement identification 146 and the condition 140 for accessing the target primary cell of the secondary cell group 142 in an updated source primary cell measurement configuration 148 a .

[0503] At block 412 , the method 400 includes sending the updated source primary cell measurement configuration 148 to the user equipment 150 .

[0504] therefore, Figure 4 A method 400 is illustrated, the method 400 comprising:

[0505] Establishing a connection to the user equipment UE via the source primary cell;

[0506] Providing source primary cell measurement configuration to the UE;

[0507] determining a condition for accessing a target primary cell in a secondary cell group of a target secondary node, the target secondary node being associated with a conditional handover to the target primary node;

[0508] generating a measurement identifier to be associated with a condition of a target primary cell in a secondary cell group for accessing a target secondary node in an updated source primary cell measurement configuration, the target secondary node being associated with a conditional handover to the target primary node;

[0509] including the generated measurement identifier and the condition for accessing the target primary cell in the secondary cell group in the updated source primary cell measurement configuration;

[0510] Send the updated source primary cell measurement configuration to the user equipment.

[0511] Figure 5 An example of a method 500 is illustrated.

[0512] In an example, the method 500 may be performed by any suitable device including any suitable components for performing the method 500. For example, as described with respect to Fig. 12A and / or Fig. 12B The device described.

[0513] In an example, the method 500 may be performed by the target MN 154, such as Figure 2 Target MN 154.

[0514] At block 502 , the method 500 includes receiving a handover request 151 .

[0515] At box 504, method 500 includes: sending information 158 to allow determination of a condition 140 for accessing a target primary cell of a secondary cell group 142 of a target secondary node 156 associated with a conditional handover to a target primary node 154, which condition will be associated with a measurement identifier 146 generated by the source primary node 152 in a source primary cell measurement configuration 148.

[0516] therefore, Figure 5 A method 500 is illustrated, the method comprising:

[0517] receiving a handover request; and

[0518] Information is sent to allow determination of conditions for accessing a target primary cell in the secondary cell group of a target secondary node associated with a conditional handover to the target primary node, which condition will be associated with a measurement identifier generated by the source primary node in a source primary cell measurement configuration.

[0519] Figure 6 An example of a method 600 is illustrated.

[0520] In an example, method 600 may be performed by any suitable device including any suitable components for performing method 500. For example, as described with respect to Fig. 12A and / or Fig. 12B The device described.

[0521] In an example, the method 600 may be performed by a UE 150, such as Figure 1 and / or Figure 2 UE150.

[0522] At box 602, method 600 includes: establishing a connection to the source master node 152.

[0523] At block 604 , the method 600 includes receiving at least one measurement configuration 170 from the source primary node 152 , the at least one measurement configuration including a condition 140 for accessing a target primary cell of a secondary cell group 142 of a target secondary node 156 associated with a conditional handover to the target primary node 154 .

[0524] At block 606 , the method 600 includes creating at least one measurement variable 172 for the received at least one measurement configuration 170 .

[0525] therefore, Figure 6 A method 600 is illustrated, the method comprising:

[0526] Establish a connection to the source master node;

[0527] receiving at least one measurement configuration from a source primary node, the at least one measurement configuration comprising a condition for accessing a target primary cell in a secondary cell group of a target secondary node, the target secondary node being associated with a conditional handover to the target primary node; and

[0528] At least one measurement variable is created for the received at least one measurement configuration.

[0529] Figure 7 An example of a method 700 is illustrated.

[0530] In an example, method 700 may be performed by any suitable device including any suitable components for performing method 500. For example, as described with respect to Fig. 12A and / or Fig. 12B The device described.

[0531] In an example, the method 700 may be performed by the target MN 154, such as Figure 2 Target MN 154.

[0532] At block 702 , the method 700 includes receiving a handover request 151 .

[0533] At block 704 , the method 700 includes determining a condition 140 for accessing a target primary cell in the secondary cell group 142 of a target secondary node 156 that is associated with a conditional handover to the target primary node 154 .

[0534] At block 706 , the method 700 includes generating a measurement identification to be associated with the condition 140 for accessing a target primary cell in the secondary cell group 142 in the target primary cell measurement configuration 162 .

[0535] At block 708 , the method 700 includes including the generated measurement identification and the determined condition 140 in a target primary cell measurement configuration 162 .

[0536] At block 710 , the method 700 includes sending a target primary cell measurement configuration 162 to a source primary node 152 .

[0537] At block 712 , the method 700 includes sending an indication 164 for maintaining measurement information after application of the target primary cell measurement configuration 162 , the measurement information used to evaluate the condition 140 for accessing the target primary cell in the secondary cell group 142 .

[0538] therefore, Figure 7 A method 700 is illustrated, the method comprising:

[0539] receiving a handover request; and

[0540] determining a condition for accessing a target primary cell in a secondary cell group of a target secondary node, the target secondary node being associated with a conditional handover to the target primary node;

[0541] generating a measurement identifier to be associated with a condition for accessing a target primary cell in a secondary cell group in a target primary cell measurement configuration;

[0542] including the generated measurement identifier and the determined condition in a target primary cell measurement configuration;

[0543] Sending a target primary cell measurement configuration to the source primary node; and

[0544] An indication is sent to maintain measurement information after application of the target primary cell measurement configuration, the measurement information being used to evaluate conditions for accessing the target primary cell in the secondary cell group.

[0545] Figure 8 An example of a method 800 is illustrated.

[0546] In an example, method 800 may be performed by any suitable device including any suitable components for performing method 400. For example, as described with respect to Fig. 12A and / or Fig. 12B The device described.

[0547] In an example, method 800 may be performed by source MN 152, such as Figure 2 Source MN 152.

[0548] At block 802 , the method 800 includes receiving a target primary cell measurement configuration 162 from a target primary node 154 , the target primary cell measurement configuration including a measurement identification and a condition 140 for accessing a target primary cell of a secondary cell group 142 of a target secondary node 156 associated with a conditional handover to the target primary node 154 .

[0549] At block 804 , the method 800 includes receiving an indication 164 to retain measurement information after application of the target primary cell measurement configuration 162 , the measurement information used to evaluate the condition 140 for accessing the target primary cell of the secondary cell group 142 .

[0550] At block 806 , the method 800 includes sending the target primary cell measurement configuration 162 and the indication 164 to the user equipment 150 .

[0551] therefore, Figure 8 A method 800 is illustrated, the method comprising:

[0552] receiving a target primary cell measurement configuration from the target primary node, the target primary cell measurement configuration including: a measurement identifier and a condition for accessing a target primary cell in a secondary cell group of the target secondary node, the target secondary node being associated with a conditional handover to the target primary node;

[0553] receiving an indication to maintain measurement information after application of a target primary cell measurement configuration, the measurement information being used to evaluate a condition for accessing a target primary cell in a secondary cell group; and

[0554] Send the target primary cell measurement configuration and indication to the user equipment.

[0555] Fig. 9 An example of a method 900 is illustrated.

[0556] Some examples involve 3rd Generation Partnership Project (3GPP) networks. Fig. 9 It may be considered that some such examples are illustrated.

[0557] The following description may be considered to illustrate some such examples.

[0558] exist Fig. 9 In the example, after block 13, the UE 150 performs an evaluation of a Conditional PSCell Addition and Change (CPAC) condition.

[0559] If the CHO condition is satisfied first, the UE 150 will apply one of the two CHO configurations 1-1 and 1-2. At this time, the UE 150 will apply the measurement configuration of the target PCell, which is a part of the CHO configuration.

[0560] However, in an example, applying a new measurement configuration may result in restarting the measurement evaluation from scratch (clearing all L1 beam measurements, L3 cell quality measurements, resetting L3 filters for cell quality measurements, etc.).

[0561] Fig.10A method 1000 is shown in which the UE 150 may use measurements performed during CHO evaluation to continue evaluating Conditional PSCell Addition and Change (CPAC) conditions associated with a target PSCell (starting after step 13) after CHO execution.

[0562] Note that the measurement object and report configuration for measurement ID 1 (generated by the target MN) are the same as the measurement object and report configuration used for measurement ID 2 (generated by the source MN). Therefore, after CHO is performed in step 15, the measurements for CPAC conditions starting in step 13 can be reused to evaluate CPAC measurement ID 2.

[0563] Fig.11 An example of a method 1100 is illustrated.

[0564] Some examples involve 3rd Generation Partnership Project (3GPP) networks. Fig.11 It may be seen as illustrating some examples related to a 3rd Generation Partnership Project (3GPP) network.

[0565] exist Fig.11 In the example of , blocks 7 and 14 allow the UE 150 to continue measurement of the CPAC condition after the CHO condition is met (ie, after execution of the target MCG (measurement) configuration).

[0566] Examples of the present disclosure are advantageous.

[0567] For example, the technical benefit provided by the examples of the present disclosure is to reuse the source PCell measurement configuration to evaluate the conditions associated with the target PSCell prepared for conditional handover of the target PCell. For example, this can avoid defining independent UE measurement variables for each non-serving target PCell measurement configuration.

[0568] For example, the technical benefit provided by the examples of the present disclosure is to allow the UE to evaluate the status of the prepared target PSCell by creating independent UE measurement variables for each prepared target PCell measurement configuration. This can allow the target PCell to still determine the status of the prepared (multiple) target PSCells.

[0569] Fig. 12A An example of an apparatus 130 is illustrated. Apparatus 130 may be a controller of an apparatus or device, such as a terminal node 110, for example, UE 150, or a network element 152, 154, and / or 156, such as an eNB or gNB. Apparatus 130 may be considered a controller.

[0570] The controller 130 may be implemented as controller circuitry. The controller 130 may be implemented solely in hardware, have certain aspects in software including firmware alone, or may be a combination of hardware and software (including firmware).

[0571] like Fig. 12A As illustrated in , the controller 130 may be implemented using instructions that enable hardware functionality, for example, by using executable instructions of a computer program 136 in a general or special purpose processor 132, which executable instructions may be stored on a computer-readable storage medium (disk, memory, etc.) for execution by such a processor 132.

[0572] The processor 132 is configured to read from and write to the memory 134. The processor 132 may also include an output interface via which data and / or commands are output by the processor 132 and an input interface via which data and / or commands are input to the processor 132.

[0573] The memory 134 stores a computer program 136, which includes computer program instructions (computer program code) that, when loaded into the processor 132, control the operation of the device 130. The computer program instructions of the computer program 136 provide logic and routines that enable the device to perform the method shown in the drawings. The processor 132 can load and execute the computer program 136 by reading the memory 134.

[0574] In an example, the apparatus 130 comprises:

[0575] at least one processor; and

[0576] at least one memory including computer program code,

[0577] The at least one memory stores instructions that, when executed by the at least one processor, cause the apparatus to at least:

[0578] Establishing a connection to the user equipment UE via the source primary cell;

[0579] Providing source primary cell measurement configuration to the UE;

[0580] determining a condition for accessing a target primary cell in a secondary cell group of a target secondary node, the target secondary node being associated with a conditional handover to the target primary node;

[0581] generating a measurement identifier to be associated with a condition of a target primary cell in a secondary cell group for accessing a target secondary node in an updated source primary cell measurement configuration, the target secondary node being associated with a conditional handover to the target primary node;

[0582] including the generated measurement identifier and the condition for accessing the target primary cell in the secondary cell group in the updated source primary cell measurement configuration;

[0583] Send the updated source primary cell measurement configuration to the user equipment.

[0584] In an example, the apparatus 130 comprises:

[0585] at least one processor; and

[0586] at least one memory including computer program code,

[0587] The at least one memory stores instructions that, when executed by the at least one processor, cause the apparatus to at least:

[0588] receiving a handover request; and

[0589] Information is sent to allow determination of conditions for accessing a target primary cell in the secondary cell group of a target secondary node associated with a conditional handover to the target primary node, which condition will be associated with a measurement identifier generated by the source primary node in a source primary cell measurement configuration.

[0590] In an example, the apparatus 130 comprises:

[0591] at least one processor; and

[0592] at least one memory including computer program code,

[0593] The at least one memory stores instructions that, when executed by the at least one processor, cause the apparatus to at least:

[0594] Establish a connection to the source master node;

[0595] receiving at least one measurement configuration from a source primary node, the at least one measurement configuration comprising a condition for accessing a target primary cell in a secondary cell group of a target secondary node, the target secondary node being associated with a conditional handover to the target primary node; and

[0596] At least one measurement variable is created for the received at least one measurement configuration.

[0597] In an example, the apparatus 130 comprises:

[0598] at least one processor; and

[0599] at least one memory including computer program code,

[0600] The at least one memory stores instructions that, when executed by the at least one processor, cause the apparatus to at least:

[0601] receiving a handover request; and

[0602] determining a condition for accessing a target primary cell in a secondary cell group of a target secondary node, the target secondary node being associated with a conditional handover to the target primary node;

[0603] generating a measurement identifier to be associated with a condition for accessing a target primary cell in a secondary cell group in a target primary cell measurement configuration;

[0604] including the generated measurement identifier and the determined condition in a target primary cell measurement configuration;

[0605] Sending a target primary cell measurement configuration to the source primary node; and

[0606] An indication is sent to maintain measurement information after application of the target primary cell measurement configuration, the measurement information being used to evaluate conditions for accessing the target primary cell in the secondary cell group.

[0607] In an example, the apparatus 130 comprises:

[0608] at least one processor; and

[0609] at least one memory including computer program code,

[0610] The at least one memory stores instructions that, when executed by the at least one processor, cause the apparatus to at least:

[0611] receiving a target primary cell measurement configuration from the target primary node, the target primary cell measurement configuration including: a measurement identifier and a condition for accessing a target primary cell in a secondary cell group of the target secondary node, the target secondary node being associated with a conditional handover to the target primary node;

[0612] receiving an indication to maintain measurement information after application of a target primary cell measurement configuration, the measurement information being used to evaluate a condition for accessing a target primary cell in a secondary cell group; and

[0613] Send the target primary cell measurement configuration and indication to the user equipment.

[0614] like Fig. 12AAs shown in , the computer program 136 may arrive at the apparatus 130 via any suitable delivery mechanism 162. The delivery mechanism 162 may be, for example, a machine-readable medium, a computer-readable medium, a non-transitory computer-readable storage medium, a computer program product, a memory device, a recording medium such as a compact disk read-only memory (CD-ROM) or a digital versatile disk (DVD) or a solid-state memory, an article of manufacture including or tangibly embodying the computer program 136. The delivery mechanism may be a signal configured to reliably transmit the computer program 136. The apparatus 130 may propagate or send the computer program 136 as a computer data signal.

[0615] Computer program instructions for causing an apparatus to at least perform the following items, or for at least performing the following items:

[0616] Establishing a connection to the user equipment UE via the source primary cell;

[0617] Providing source primary cell measurement configuration to the UE;

[0618] determining a condition for accessing a target primary cell in a secondary cell group of a target secondary node, the target secondary node being associated with a conditional handover to the target primary node;

[0619] generating a measurement identifier to be associated with a condition of a target primary cell in a secondary cell group for accessing a target secondary node in an updated source primary cell measurement configuration, the target secondary node being associated with a conditional handover to the target primary node;

[0620] including the generated measurement identifier and the condition for accessing the target primary cell in the secondary cell group in the updated source primary cell measurement configuration;

[0621] Send the updated source primary cell measurement configuration to the user equipment.

[0622] Computer program instructions for causing an apparatus to at least perform the following items, or for at least performing the following items:

[0623] receiving a handover request; and

[0624] Information is sent to allow determination of conditions for accessing a target primary cell in the secondary cell group of a target secondary node associated with a conditional handover to the target primary node, which condition will be associated with a measurement identifier generated by the source primary node in a source primary cell measurement configuration.

[0625] Computer program instructions for causing an apparatus to at least perform the following items, or for at least performing the following items:

[0626] Establish a connection to the source master node;

[0627] receiving at least one measurement configuration from a source primary node, the at least one measurement configuration comprising a condition for accessing a target primary cell in a secondary cell group of a target secondary node, the target secondary node being associated with a conditional handover to the target primary node; and

[0628] At least one measurement variable is created for the received at least one measurement configuration.

[0629] Computer program instructions for causing an apparatus to at least perform the following items, or for at least performing the following items:

[0630] receiving a handover request; and

[0631] determining a condition for accessing a target primary cell in a secondary cell group of a target secondary node, the target secondary node being associated with a conditional handover to the target primary node;

[0632] generating a measurement identifier to be associated with a condition for accessing a target primary cell in a secondary cell group in a target primary cell measurement configuration;

[0633] including the generated measurement identifier and the determined condition in a target primary cell measurement configuration;

[0634] Sending a target primary cell measurement configuration to the source primary node; and

[0635] An indication is sent to maintain measurement information after application of the target primary cell measurement configuration, the measurement information being used to evaluate conditions for accessing the target primary cell in the secondary cell group.

[0636] Computer program instructions for causing an apparatus to at least perform the following items, or for at least performing the following items:

[0637] receiving a target primary cell measurement configuration from the target primary node, the target primary cell measurement configuration including: a measurement identifier and a condition for accessing a target primary cell in a secondary cell group of the target secondary node, the target secondary node being associated with a conditional handover to the target primary node;

[0638] receiving an indication to maintain measurement information after application of a target primary cell measurement configuration, the measurement information being used to evaluate a condition for accessing a target primary cell in a secondary cell group; and

[0639] Send the target primary cell measurement configuration and indication to the user equipment.

[0640] The computer program instructions may be included in a computer program, a non-transitory computer readable medium, a computer program product, a machine readable medium. In some but not necessarily all examples, the computer program instructions may be distributed over multiple computer programs.

[0641] Although memory 134 is illustrated as a single component / circuitry, it may be implemented as one or more separate components / circuitry, some or all of which may be integrated / removable, and / or may provide permanent / semi-permanent / dynamic / cached storage.

[0642] In an example, the memory 134 includes a random access memory 158 and a read-only memory 160. In an example, the computer program 136 may be stored in the read-only memory 158.

[0643] For example, see Fig. 12B

[0644] In some examples, memory 134 may be split into random access memory 158 and read-only memory 160 .

[0645] Although processor 132 is illustrated as a single component / circuitry, it may be implemented as one or more separate components / circuitry, some or all of which may be integrated / removable.Processor 132 may be a single-core or multi-core processor.

[0646] References to "computer-readable storage medium," "computer program product," "tangibly embodied computer program," etc., or "controller," "computer," "processor," etc., should be understood to cover not only computers with different architectures, such as single / multi-processor architectures and sequential (von Neumann) / parallel architectures, but also special-purpose circuits, such as field-programmable gate arrays (FPGAs), application-specific circuits (ASICs), signal processing devices, and other processing circuit systems. References to computer programs, instructions, code, etc., should be understood to cover software for programmable processors, or firmware, such as the programmable content of hardware devices, whether instructions for a processor, or configuration settings for a fixed-function device, gate array, or programmable logic device, etc.

[0647] As used in this application, the term "circuitry" may refer to one or more or all of the following:

[0648] (a) hardware circuit implementation only (such as implementation in analog and / or digital circuitry only) and

[0649] (b) a combination of hardware circuitry and software such as (where applicable):

[0650] (i) a combination of analog and / or digital hardware circuits and software / firmware, and

[0651] (ii) any portion of hardware processor(s) (including digital signal processor(s)), software and memory(s) with software that work together to cause a device such as a mobile phone or server to perform various functions, and

[0652] (c) Hardware circuits and / or processor(s), such as microprocessor(s) or portions of microprocessor(s), that require software (e.g., firmware) to operate, but where software is not required for operation, the software may not be present.

[0653] This definition of circuitry applies to all uses of the term in this application, including in any claims. As another example, as used in this application, the term circuitry also covers an implementation of only hardware circuits or processors and their accompanying software and / or firmware. For example, if applicable to a particular claim element, the term circuitry also covers a baseband integrated circuit for a mobile device, or a similar integrated circuit in a server, cellular network device, or other computing or network device.

[0654] The blocks shown in the accompanying drawings may represent steps in a method and / or code segments in a computer program 136. The illustration of a particular order of blocks does not necessarily represent a required or preferred order for the blocks, and the order and arrangement of the blocks may vary. In addition, some blocks may be omitted.

[0655] Where a structural feature is described, it may be replaced by a means for performing one or more of the functions of the structural feature, whether the function or functions are described explicitly or implicitly.

[0656] Thus, in an example, the apparatus 130 may include means for:

[0657] Establishing a connection to the user equipment UE via the source primary cell;

[0658] Providing source primary cell measurement configuration to the UE;

[0659] determining a condition for accessing a target primary cell in a secondary cell group of a target secondary node, the target secondary node being associated with a conditional handover to the target primary node;

[0660] generating a measurement identifier to be associated with a condition of a target primary cell in a secondary cell group for accessing a target secondary node in an updated source primary cell measurement configuration, the target secondary node being associated with a conditional handover to the target primary node;

[0661] including the generated measurement identifier and the condition for accessing the target primary cell in the secondary cell group in the updated source primary cell measurement configuration;

[0662] Send the updated source primary cell measurement configuration to the user equipment.

[0663] Thus, in an example, the apparatus 130 may include means for:

[0664] receiving a handover request; and

[0665] Information is sent to allow determination of conditions for accessing a target primary cell in the secondary cell group of a target secondary node associated with a conditional handover to the target primary node, which condition will be associated with a measurement identifier generated by the source primary node in a source primary cell measurement configuration.

[0666] Thus, in an example, the apparatus 130 may include means for:

[0667] Establish a connection to the source master node;

[0668] receiving at least one measurement configuration from a source primary node, the at least one measurement configuration comprising a condition for accessing a target primary cell in a secondary cell group of a target secondary node, the target secondary node being associated with a conditional handover to the target primary node; and

[0669] At least one measurement variable is created for the received at least one measurement configuration.

[0670] Thus, in an example, the apparatus 130 may include means for:

[0671] receiving a handover request; and

[0672] determining a condition for accessing a target primary cell in a secondary cell group of a target secondary node, the target secondary node being associated with a conditional handover to the target primary node;

[0673] generating a measurement identifier to be associated with a condition for accessing a target primary cell in a secondary cell group in a target primary cell measurement configuration;

[0674] including the generated measurement identifier and the determined condition in a target primary cell measurement configuration;

[0675] Sending a target primary cell measurement configuration to the source primary node; and

[0676] An indication is sent to maintain measurement information after application of the target primary cell measurement configuration, the measurement information being used to evaluate conditions for accessing the target primary cell in the secondary cell group.

[0677] Thus, in an example, the apparatus 130 may include means for:

[0678] receiving a target primary cell measurement configuration from the target primary node, the target primary cell measurement configuration including: a measurement identifier and a condition for accessing a target primary cell in a secondary cell group of the target secondary node, the target secondary node being associated with a conditional handover to the target primary node;

[0679] receiving an indication to maintain measurement information after application of a target primary cell measurement configuration, the measurement information being used to evaluate a condition for accessing a target primary cell in a secondary cell group; and

[0680] Send the target primary cell measurement configuration and indication to the user equipment.

[0681] In an example, the apparatus 130 may include means for performing one or more methods disclosed herein, or at least a portion of one or more methods.

[0682] In an example, the apparatus 130 may be configured to perform one or more methods disclosed herein, or at least a portion of one or more methods.

[0683] The above example uses the application as an enabling component for:

[0684] Automotive systems; telecommunications systems; electronic systems, including consumer electronics; distributed computing systems; media systems for generating or rendering media content, including audio, visual and audiovisual content and mixed, mediated, virtual and / or augmented reality; personal systems, including personal health systems or personal fitness systems; navigation systems; user interfaces, also known as human-machine interfaces; networks, including cellular, non-cellular and optical networks; ad hoc networks; the Internet; the Internet of Things; virtualized networks; and related software and services.

[0685] According to examples of the present disclosure, the device may be provided in an electronic device, such as a mobile terminal. However, it should be understood that the mobile terminal is merely an example of an electronic device that will benefit from the examples of implementations of the present disclosure, and therefore, it should not be considered to limit the scope of the present disclosure to this. Although in some implementation examples, the device may be provided in a mobile terminal, other types of electronic devices, such as but not limited to: mobile communication devices, portable electronic devices, wearable computing devices, portable digital assistants (PDAs), pagers, mobile computers, desktop computers, televisions, gaming devices, laptop computers, cameras, video recorders, GPS devices, and other types of electronic systems may easily adopt examples of the present disclosure. In addition, devices may easily adopt examples of the present disclosure regardless of their intent to provide mobility.

[0686] The term "comprising" as used in this document is inclusive and not exclusive. That is, any reference to X including Y means that X may include only one Y or may include multiple Ys. If the exclusive meaning of "comprising" is intended, it will be clearly stated in the context by referring to "including only one" or using "consisting of..."

[0687] In this specification, "connected", "coupled" and "in communication" and their derivatives refer to being operationally connected / coupled / in communication. It should be understood that any number or combination of intermediate components (including no intermediate components) may be present, i.e., to provide direct or indirect connection / coupling / in communication. Any such intermediate components may include hardware and / or software components.

[0688] As used herein, the term "determine / decide" (and its grammatical variations) may include at least: calculate, compute, process, derive, measure, investigate, identify, look up (e.g., look up in a table, a database, or another data structure), confirm, etc. In addition, "determine" may include receiving (e.g., receiving information), accessing (e.g., accessing data in a memory), obtaining, etc. In addition, "determine / decide" may include resolving, selecting, choosing, establishing, etc.

[0689] In this specification, reference is made to various examples. The description of features or functions associated with an example indicates that these features or functions are present in the example. The use of the term "example" or "for example" or "may" or "can" in the text indicates (whether explicitly stated or not) that such features or functions are present in at least the described example, whether described as an example or not, and they may but do not have to be present in some or all other examples. Therefore, "example" or "for example" or "may" or "can" refers to a specific instance in a class of examples. The attributes of an instance may be attributes of only the instance or attributes of a class or attributes of a subclass of a class including some but not all instances in the class. Therefore, it is implicitly disclosed that features described with reference to one example rather than with reference to another example may be used as part of a working combination in the other example where possible, but do not necessarily have to be used in the other example.

[0690] Although the examples have been described in the preceding paragraphs with reference to various examples, it should be appreciated that modifications to the examples given can be made without departing from the scope of the claims.

[0691] Features described in the preceding description may be used in other combinations than the combinations explicitly described above.

[0692] Although functions have been described with reference to certain features, those functions may be performable by other features whether described or not.

[0693] Although features have been described with reference to certain examples, those features may also be present in other examples whether described or not.

[0694] The terms "a", "an" or "the" used in this document are inclusive and not exclusive. That is, any reference to X that includes a / an / the Y indicates that X may include only one Y or may include multiple Ys, unless the context clearly indicates otherwise. If the exclusive meaning of "a", "an" or "the" is intended, it will be clearly stated in the context. In some cases, "at least one" or "one or more" may be used to emphasize the inclusive meaning, but the absence of these terms should not be regarded as inferring any exclusive meaning.

[0695] The presence of a feature (or combination of features) in a claim is a reference to the feature or (combination of features) itself, as well as to features that achieve substantially the same technical effect (equivalent features). Equivalent features include, for example, features that are variants and achieve substantially the same result in substantially the same way. Equivalent features include, for example, features that perform substantially the same function in substantially the same way to achieve substantially the same result.

[0696] In this specification, reference is made to various examples, using adjectives or adjective phrases to describe features of the examples. Such description of a characteristic associated with an example indicates that the characteristic exists in some examples exactly as described and in other examples substantially as described.

[0697] The above description describes some examples of the present disclosure, however, those of ordinary skill in the art will be aware of possible alternative structures and method features that provide equivalent functionality to the specific examples of such structures and features described above, and for the sake of brevity and clarity, these alternative structures and features are omitted from the above description. Nevertheless, the above description should be understood to implicitly include references to such alternative structures and method features that provide equivalent functionality, unless such alternative structures or method features are explicitly excluded in the above description of examples of the present disclosure.

[0698] While efforts have been made in the foregoing description to draw attention to those features regarded as of significance, it will be understood that the applicant may seek protection by way of claims for any patentable feature or combination of features mentioned above and / or shown in the drawings, whether or not emphasis has been placed thereon.

Claims

1. A device comprising: at least one processor; as well as at least one memory including computer program code, The at least one memory stores instructions that, when executed by the at least one processor, cause the apparatus to at least: Establishing a connection to the user equipment UE via the source primary cell; Providing a source primary cell measurement configuration to the UE; determining a condition for accessing a target primary cell in a secondary cell group of a target secondary node, the target secondary node being associated with a conditional handover to the target primary node; generating a measurement identifier to be associated with the condition of the target primary cell in a secondary cell group for accessing a target secondary node in an updated source primary cell measurement configuration, the target secondary node being associated with a conditional handover to the target primary node; including the generated measurement identifier and the condition for accessing the target primary cell in the secondary cell group in an updated source primary cell measurement configuration; Send the updated source primary cell measurement configuration to the user equipment.

2. The apparatus according to claim 1, wherein determining the condition for accessing the target primary cell in the secondary cell group comprises: Receive information; and determining said condition based at least in part on said information received.

3. The apparatus of claim 2, wherein the information is received from a target master node and comprises measurement related information. The apparatus according to claim 3 , wherein the measurement-related information comprises measurement object information.

5. According to any one of claims 2 to 4, the at least one memory stores instructions, and when the instructions are executed by the at least one processor, the device at least generates a report configuration for the conditions for accessing the target primary cell in the secondary cell group.

6. The apparatus according to any one of claims 2 to 5, wherein the conditions include conditional PSCell addition and changing CPAC conditions.

7. The apparatus according to any one of claims 4 to 6, wherein the updated source primary cell measurement configuration comprises: The generated measurement identifier, and the measurement object information received from the target master node.

8. The apparatus according to any one of claims 5 to 7, wherein the updated source primary cell measurement configuration comprises: The report configuration generated.

9. The apparatus according to claim 1, wherein determining the condition for accessing the target primary cell in the secondary cell group comprises: The conditions are received.

10. The apparatus according to claim 9, wherein the at least one memory stores instructions, which, when executed by the at least one processor, cause the apparatus to at least: receive a report configuration of the condition for accessing the target primary cell in the secondary cell group.

11. The apparatus according to any preceding claim, wherein the updated source primary cell measurement configuration comprises a conditional handover (CHO) execution condition.

12. The apparatus according to claim 11, wherein the updated source primary cell measurement configuration comprises: A first CHO execution condition associated with a first generated measurement identifier and a first condition for accessing a target primary cell in a secondary cell group, and a second CHO execution condition associated with a second generated measurement identifier and a second condition for accessing a target primary cell in a secondary cell group, wherein the first condition and the second condition for accessing the target primary cell in the secondary cell group include conditional PSCell addition and CPAC change conditions.

13. The apparatus of any one of claims 1 to 12, wherein the at least one memory stores instructions that, when executed by the at least one processor, cause the apparatus to at least: receiving an indication of a second measurement identifier, the second measurement identifier being associated with the condition for accessing the target primary cell in the secondary cell group in a target primary cell measurement configuration; and An indication is sent to the UE to maintain the following measurement information after application of the target primary cell measurement configuration, for evaluating the condition associated with the second measurement identifier for accessing the target primary cell in the secondary cell group, the measurement information being associated with the evaluation of the condition for accessing the target primary cell in the secondary cell group, and the condition being associated with the generated measurement identifier.

14. The apparatus of claim 13, wherein the indication of the second measurement identity comprises the second measurement identity.

15. A method comprising: Establishing a connection to the user equipment UE via the source primary cell; Providing a source primary cell measurement configuration to the UE; Determining a condition for accessing a target primary cell in a secondary cell group of a target secondary node, the target secondary node being associated with a conditional handover to the primary node; generating a measurement identifier to be associated with the condition of the target primary cell in a secondary cell group for accessing a target secondary node in an updated source primary cell measurement configuration, the target secondary node being associated with a conditional handover to the target primary node; including the generated measurement identifier and the condition for accessing the target primary cell in the secondary cell group in an updated source primary cell measurement configuration; Send the updated source primary cell measurement configuration to the user equipment.

16. The method according to claim 15, wherein determining the condition for accessing the target primary cell in the secondary cell group comprises: Receive information; and determining said condition based at least in part on said information received.

17. The method according to claim 15, wherein determining the condition for accessing the target primary cell in the secondary cell group comprises: The conditions are received.

18. The method according to any one of claims 15 to 17, comprising: receiving an indication of a second measurement identifier, where the second measurement identifier is associated with the condition for accessing the target primary cell in the secondary cell group in a target primary cell measurement configuration; as well as An indication is sent to the UE to maintain the following measurement information after application of the target primary cell measurement configuration, for evaluating the condition associated with the second measurement identifier for accessing the target primary cell in the secondary cell group, the measurement information being associated with the evaluation of the condition for accessing the target primary cell in the secondary cell group, and the condition being associated with the generated measurement identifier.

19. A computer program comprising instructions for causing an apparatus to at least perform the following: Establishing a connection to the user equipment UE via the source primary cell; Providing a source primary cell measurement configuration to the UE; determining a condition for accessing a target primary cell in a secondary cell group of a target secondary node, the target secondary node being associated with a conditional handover to the target primary node; generating a measurement identifier to be associated with the condition of the target primary cell in a secondary cell group for accessing a target secondary node in an updated source primary cell measurement configuration, the target secondary node being associated with a conditional handover to the target primary node; including the generated measurement identifier and the condition for accessing the target primary cell in the secondary cell group in an updated source primary cell measurement configuration; Send the updated source primary cell measurement configuration to the user equipment.

20. The computer program of claim 19, wherein determining the condition for accessing the target primary cell in the secondary cell group comprises: Receive information; and determining said condition based at least in part on said information received.

21. The computer program of claim 19, wherein determining the condition for accessing the target primary cell in the secondary cell group comprises: The conditions are received.

22. A computer program according to any one of claims 19 to 21, comprising instructions for causing an apparatus to at least perform the following: receiving an indication of a second measurement identifier, the second measurement identifier being associated with the condition for accessing the target primary cell in the secondary cell group in a target primary cell measurement configuration; and An indication is sent to the UE to maintain measurement information after application of the target primary cell measurement configuration, for evaluating the condition associated with the second measurement identifier for accessing the target primary cell in the secondary cell group, the measurement information being associated with the evaluation of the condition for accessing the target primary cell in the secondary cell group, and the condition being associated with the generated measurement identifier.

23. An apparatus comprising: at least one processor; as well as at least one memory including computer program code, The at least one memory stores instructions that, when executed by the at least one processor, cause the apparatus to at least: receiving a handover request; and Information is sent to allow determination of conditions for accessing a target primary cell in a secondary cell group of a target secondary node associated with a conditional handover to the target primary node, the conditions to be associated with a measurement identifier generated by the source primary node in a source primary cell measurement configuration.

24. The apparatus of claim 23, the at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus to at least: determining the condition for accessing a target primary cell in the secondary cell group, and The conditions for sending information to allow determination of a target primary cell for accessing the secondary cell group include: The determined condition is transmitted.

25. An apparatus according to claim 23 or 24, wherein the information comprises measurement related information. The apparatus according to claim 25 , wherein the measurement-related information comprises measurement object information.

27. The apparatus according to any one of claims 23 to 26, wherein the at least one memory stores instructions that, when executed by the at least one processor, cause the apparatus to at least: determine a reporting configuration for the condition for accessing the target primary cell in the secondary cell group, and wherein sending information to allow determination of the condition for accessing the target primary cell in the secondary cell group comprises: The determined report configuration is transmitted.

28. The apparatus of any one of claims 24 to 27, wherein the at least one memory stores instructions that, when executed by the at least one processor, cause the apparatus to at least: An indication of a measurement identifier is sent, where the measurement identifier is associated with the condition for accessing the target primary cell in the secondary cell group in a target primary cell measurement configuration.

29. The apparatus of claim 28, wherein the indication of the measurement identity comprises: In the target primary cell measurement configuration, the measurement identifier is associated with the condition for accessing the target primary cell in the secondary cell group.

30. A method comprising: receiving a switching request; as well as Information is sent to allow determination of conditions for accessing a target primary cell in a secondary cell group of a target secondary node associated with a conditional handover to the target primary node, the conditions to be associated with a measurement identifier generated by the source primary node in a source primary cell measurement configuration.

31. The method according to claim 30, comprising: determining the condition for accessing a target primary cell in the secondary cell group, and The sending of information to allow determination of a condition for accessing a target primary cell in the secondary cell group includes: sending the determined condition.

32. The method of claim 31, comprising: An indication of a measurement identifier is sent, where the measurement identifier is associated with the condition for accessing the target primary cell in the secondary cell group in a target primary cell measurement configuration.

33. A computer program comprising instructions for causing an apparatus to at least perform the following: receiving a handover request; and Information is sent to allow determination of conditions for accessing a target primary cell in a secondary cell group of a target secondary node associated with a conditional handover to the target primary node, the conditions to be associated with a measurement identifier generated by the source primary node in a source primary cell measurement configuration.

34. A computer program according to claim 33, comprising instructions for causing an apparatus to at least: determining the condition for accessing a target primary cell in the secondary cell group, and The conditions for sending information to allow determination of a target primary cell for accessing the secondary cell group include: The determined condition is transmitted.

35. A computer program according to claim 34, comprising instructions for causing an apparatus to at least: An indication of a measurement identifier is sent, where the measurement identifier is associated with the condition for accessing the target primary cell in the secondary cell group in a target primary cell measurement configuration.

36. An apparatus comprising: at least one processor; as well as at least one memory including computer program code, The at least one memory stores instructions that, when executed by the at least one processor, cause the apparatus to at least: Establish a connection to the source master node; receiving at least one measurement configuration from the source primary node, the at least one measurement configuration comprising a condition for accessing a target primary cell in a secondary cell group of a target secondary node, the target secondary node being associated with a conditional handover to the target primary node; as well as At least one measurement variable is created for the at least one received measurement configuration.

37. The apparatus of claim 36, wherein the at least one measurement configuration is a source primary cell measurement configuration.

38. The apparatus of claim 37, wherein creating at least one measurement variable for the received at least one measurement configuration comprises: At least one measurement variable associated with the source primary cell is updated to include a measurement identifier associated with the condition for accessing the target primary cell in the secondary cell group.

39. The apparatus of claim 38, the at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus to at least: An indication is received to maintain the following measurement information after application of a target primary cell measurement configuration, for evaluating the condition for accessing the target primary cell in a secondary cell group that is associated with a second measurement identifier in the target primary cell measurement configuration, wherein the measurement information is associated with the condition for accessing the target primary cell in the secondary cell group that is associated with the measurement identifier.

40. The apparatus of claim 39, wherein the indication comprises the second measurement identification.

41. In the device according to claim 39 or 40, the at least one memory stores instructions, which, when executed by the at least one processor, cause the device to at least: use the retained measurement information to evaluate the condition for accessing the target primary cell in the secondary cell group associated with the second measurement identifier in the target primary cell measurement configuration.

42. The apparatus of claim 36, wherein the at least one measurement configuration comprises a target primary cell measurement configuration.

43. The apparatus of claim 42, wherein creating the at least one measurement variable comprises: At least one independent measurement variable is created for the target primary cell measurement configuration.

44. The apparatus of claim 42 or 43, the at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus to at least: An indication is received to maintain measurement information after application of the target primary cell measurement configuration, the measurement information being used to evaluate the condition for accessing the target primary cell in the secondary cell group.

45. The apparatus of claim 44, wherein the indication comprises a logo.

46. ​​According to the device according to claim 44 or 45, the at least one memory stores instructions, which, when executed by the at least one processor, cause the device to at least: after application of the target primary cell measurement configuration, use the retained measurement information to evaluate the conditions for accessing the target primary cell in the secondary cell group.

47. A method comprising: Establish a connection to the source master node; receiving at least one measurement configuration from the source primary node, the at least one measurement configuration comprising a condition for accessing a target primary cell in a secondary cell group of a target secondary node, the target secondary node being associated with a conditional handover to the target primary node; as well as At least one measurement variable is created for the at least one received measurement configuration.

48. The method of claim 47, wherein the at least one measurement configuration is a source primary cell measurement configuration.

49. The method of claim 48, wherein creating at least one measurement variable for the received at least one measurement configuration comprises: At least one measurement variable associated with the source primary cell is updated to include a measurement identifier associated with the condition for accessing the target primary cell in the secondary cell group.

50. The method of claim 49, comprising: An indication is received to maintain the following measurement information after application of a target primary cell measurement configuration, for evaluating the condition for accessing the target primary cell in a secondary cell group that is associated with a second measurement identifier in the target primary cell measurement configuration, wherein the measurement information is associated with the condition for accessing the target primary cell in the secondary cell group that is associated with the measurement identifier.

51. The method of claim 50, wherein the indication comprises the second measurement identity.

52. The method of claim 47, wherein the at least one measurement configuration comprises a target primary cell measurement configuration.

53. The method of claim 52, wherein creating the at least one measurement variable comprises: At least one independent measurement variable is created for the target primary cell measurement configuration.

54. The method of claim 52 or 53, comprising: An indication is received to maintain measurement information after application of the target primary cell measurement configuration, the measurement information being used to evaluate the condition for accessing the target primary cell in the secondary cell group.

55. The method according to claim 54, wherein the indication comprises an indication of a measurement identifier, and the measurement identifier is associated with the condition for accessing the target primary cell in the secondary cell group in the target primary cell measurement configuration.

56. A computer program comprising instructions for causing an apparatus to at least perform the following: Establish a connection to the source master node; receiving at least one measurement configuration from the source primary node, the at least one measurement configuration comprising a condition for accessing a target primary cell in a secondary cell group of a target secondary node, the target secondary node being associated with a conditional handover to the target primary node; and At least one measurement variable is created for the at least one received measurement configuration.

57. The computer program of claim 56, wherein the at least one measurement configuration is a source primary cell measurement configuration.

58. The computer program of claim 57, wherein creating at least one measurement variable for the received at least one measurement configuration comprises: At least one measurement variable associated with the source primary cell is updated to include a measurement identifier associated with the condition for accessing the target primary cell in the secondary cell group.

59. A computer program according to claim 58, comprising instructions for causing an apparatus to at least: An indication is received to maintain the following measurement information after application of a target primary cell measurement configuration, for evaluating the condition for accessing the target primary cell in a secondary cell group that is associated with a second measurement identifier in the target primary cell measurement configuration, wherein the measurement information is associated with the condition for accessing the target primary cell in the secondary cell group that is associated with the measurement identifier.

60. The computer program of claim 59, wherein the indication comprises the second measurement identification.

61. The computer program of claim 56, wherein the at least one measurement configuration comprises a target primary cell measurement configuration.

62. The computer program of claim 61 , wherein creating the at least one measurement variable comprises: At least one independent measurement variable is created for the target primary cell measurement configuration.

63. A computer program according to claim 61 or 62, the computer program comprising instructions for causing an apparatus to at least perform the following: An indication is received to maintain measurement information after application of the target primary cell measurement configuration, the measurement information being used to evaluate the condition for accessing the target primary cell in the secondary cell group.

64. The computer program of claim 63, wherein the indication comprises an indication of a measurement identifier, the measurement identifier being associated with the condition for accessing a target primary cell in a secondary cell group in the target primary cell measurement configuration.

65. An apparatus comprising: at least one processor; as well as at least one memory including computer program code, The at least one memory stores instructions that, when executed by the at least one processor, cause the apparatus to at least: receiving a handover request; and determining a condition for accessing a target primary cell in a secondary cell group of a target secondary node, the target secondary node being associated with a conditional handover to the target primary node; generating a measurement identifier to be associated with the condition for accessing the target primary cell in the secondary cell group in the target primary cell measurement configuration; including the generated measurement identifier and the determined condition in a target primary cell measurement configuration; Sending the target primary cell measurement configuration to the source primary node; as well as An indication is sent to maintain measurement information after application of the target primary cell measurement configuration, the measurement information being used to evaluate the condition for accessing the target primary cell in the secondary cell group.

66. The apparatus of claim 65, wherein the indication comprises a logo.

67. The apparatus of claim 65 or 66, wherein the indication comprises: An indication of maintaining measurement information after conditional handover CHO is performed, the measurement information being used to evaluate the condition for accessing a target primary cell in the secondary cell group.

68. An apparatus comprising: at least one processor; as well as at least one memory including computer program code, The at least one memory stores instructions that, when executed by the at least one processor, cause the apparatus to at least: receiving a target primary cell measurement configuration from a target primary node, the target primary cell measurement configuration comprising: a measurement identifier and a condition for accessing a target primary cell in a secondary cell group of a target secondary node, the target secondary node being associated with a conditional handover to the target primary node; receiving an indication to maintain measurement information after application of the target primary cell measurement configuration, the measurement information being used to evaluate the condition for accessing the target primary cell in the secondary cell group; as well as Send the target primary cell measurement configuration and indication to the user equipment.

69. The apparatus of claim 68, wherein the indication comprises a logo.

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