Controlling configuration activity in wireless communication networks

Abstract

A user device of a communication network comprising at least one processor and at least one memory for storing instructions, wherein the instructions, when executed by at least one processor, cause the user device to at least receive a configuration message from a network node, the configuration message provides an indication of an activity to be executed by the user device along with conditions associated with the activity, the conditions indicating when the activity is in an active state in which it is executed by the user device connected to the network or in an inactive state in which the measurement activity is not executed.

Description

Technical Field

[0001] Various exemplary embodiments relate to controlling configuration activities in a wireless communication network.

Background Art

[0002] In some wireless communication networks, some mobility mechanisms depend on a dual execution event or two separate execution conditions where, upon receiving a new configuration, a user equipment (UE) is expected to start measurements for all configured execution conditions or perform other tasks or activities. Such an approach can lead to an inefficient use of available resources. Thus, there is a desire for improved techniques.

Summary of the Invention

Problems to be Solved by the Invention

[0003] The scope of protection sought in various exemplary embodiments of the present invention is described by the independent claims. Exemplary embodiments and features described herein that are not included in the scope of the independent claims, if any, should be construed as useful examples for understanding the various exemplary embodiments of the present invention.

Means for Solving the Problems

[0004] Note: In the original text, the tag is likely a misspelling of in the English translation. I've kept it as it is based on the rule of preserving all 7 - digit tags exactly as - is. Also, the tag <⑨> in the English translation is a wrong input in the original text, it should be .According to various exemplary embodiments, not necessarily all, of the present invention, a user device for a communication network is provided, comprising at least one processor and at least one memory for storing instructions, wherein when the instructions are executed by the at least one processor, the user device causes the user device to receive at least one configuration message from a network node, the configuration message provides an indication of an activity to be performed by the user device, along with conditions associated with the activity, the conditions indicating whether the activity is in an active state performed by the user device connected to the network or in an inactive state in which no measurement activity is performed.

[0005] Configuration messages may include measurement configuration messages, and activities may include measurement activities.

[0006] The command can cause the user's equipment to perform at least one measurement activity.

[0007] The aforementioned conditions can indicate whether the user device is in an active state where measurement activities are performed, or in an inactive state where measurement activities are not performed.

[0008] This condition can indicate whether the measurement activity is active, performed by a user device connected to the network, or inactive, when no measurement activity is being performed.

[0009] Measurement configuration messages can indicate whether a measurement activity is active or inactive by default.

[0010] This condition can indicate when the measurement activity switches between an active and inactive state.

[0011] Measurement configuration messages can provide indications of multiple measurement activities performed by the user's equipment, along with conditions related to the measurement activity.

[0012] Measurement configuration messages can provide indicators of multiple measurement activities performed by user devices connected to network nodes, along with conditions related to the measurement activity.

[0013] Multiple measurement activities may include a first measurement activity having a first condition and a second measurement activity having a second condition, where the evaluation of the second condition is conditional on the result of the first condition.

[0014] The second measurement activity may have a third condition, and the evaluation of the second condition is conditional on the result of the third condition.

[0015] A first measurement activity may include measuring the radio state of at least one serving cell, and a second measurement activity may include measuring the radio state of at least one target cell. The first measurement activity may be active by default, and the second measurement activity may be inactive by default. When degradation of the radio state measured by the first measurement activity is detected, the second measurement activity is switched to the active state.

[0016] A first measurement activity may include measuring the radio state of at least one serving cell, and a second measurement activity may include measuring the radio state of at least one target cell. The first measurement activity may be active by default, and the second measurement activity may be inactive by default. The second measurement activity may be switched to an active state when the radio state measured by the first measurement activity is detected.

[0017] The first measurement activity includes radio link monitoring of at least one serving primary serving cell (PSCell), and the second measurement activity includes radio status measurement of at least one target primary cell (PCell). The second measurement activity can be switched to an active state when a radio link failure, T310 activation, or beam failure related to the serving PSCell is detected.

[0018] The command can cause the user equipment to activate a second measurement activity when it detects at least a wireless link fault, T310 activation, or beam fault related to the serving PSCell.

[0019] User equipment can be configured to have a dual connection between at least a network node having a source master node and a first secondary node, and configuration messages can include a handover request acknowledgment received from the master node, the handover request acknowledgment can indicate a first activity that applies configuration for connection with the target master node and the first secondary node when no activated first condition related to serving PSCell is detected, such as a radio link failure, T310 activation or beam failure, the handover request acknowledgment can indicate a second activity that applies configuration for connection with the target master node and the second secondary node when a deactivated second condition is activated, the deactivated second condition is activated when the first condition is false.

[0020] The command can cause the user equipment to activate a second condition when it detects at least a radio link fault, T310 activation, or beam fault related to the serving PSCell.

[0021] A network node may consist of a target master node or a source master node.

[0022] If the network node includes a source master node, the configuration message may include a Radio Resource Control (RRC) reconfiguration message.

[0023] If a network node has a target master node, the configuration message may include a Handover (HO) Request Acknowledgement (Ack) message.

[0024] The first measurement activity can include measuring the radio state of the current serving cell, the second measurement activity can include measuring the radio state of the target serving cell, the first measurement activity can be in an inactive state by default, the second measurement activity can be in an active state by default, and when a conditional cell change from the current serving cell to the target serving cell is initiated, the second measurement activity can be switched to an inactive state and the first measurement activity can be switched to an active state.

[0025] The first measurement activity includes measuring the radio state of the current serving cell and can, the second measurement activity can include measuring the radio state of the target serving cell, the first measurement activity can be in an inactive state by default, the second measurement activity can be in an active state by default, and when a cell change from the current serving cell to the target serving cell is executed, the second measurement activity can be switched to an inactive state and the first measurement activity can be switched to an active state.

[0026] The instruction can cause the user equipment to activate the first measurement activity and deactivate the second measurement activity at least when a cell change from the current serving cell to the target serving cell is executed.

[0027] The user equipment can be configured to perform a dual connection with at least a network node including a source master node and a source secondary node. The configuration message can include an RRC reconfiguration message received from the source master node. The RRC reconfiguration message indicates a first activity of measuring the PSCell of the source secondary node under a first condition that the measurement is deactivated when the user equipment is connected to the source master node. The RRC reconfiguration message indicates a second activity of measuring the PSCell of the target secondary node under a second condition that the measurement is activated when the user equipment is not connected to the target master node.

[0028] The user equipment can be configured to activate a first activity of measuring the PSCell of the source secondary node and deactivate a second activity of measuring the PSCell of the target secondary node in response to performing a conditional primary serving cell change towards the target secondary node.

[0029] The measurement can be deactivated by deactivating the associated measurement_ID and can be activated by activating the associated measurement_ID.

[0030] The network node can include a source master node.

[0031] The configuration message can include an RRC reconfiguration message.

[0032] A first measurement activity may include measuring the radio state of the current serving cell, and a second measurement activity may include measuring the radio state of the target serving cell. The first measurement activity may be active by default, and the second measurement activity may be inactive by default. The second measurement activity may be switched to an active state when degradation exceeding a threshold of radio state measured by the first measurement activity is detected.

[0033] The first measurement activity may include measuring at least the radio state of the serving PCell, the second measurement activity may include measuring at least the radio state of the PSCell, and the measurement configuration message may provide indication of further measurement activities, including measuring at least the radio state of the serving PCell, and further conditions to be met before switching the second measurement activity to the active state.

[0034] Further conditions may include measuring a received signal power that is offset by an amount lower than the power measured by the first measurement activity, which would lead to a conditional handover.

[0035] The command can cause the user equipment to activate a second measurement activity when the received signal power is at least an offset amount lower than the power measured by the first measurement activity, which would result in a conditional handover.

[0036] The command can cause the user equipment to activate a second measurement activity when the received signal power is at least an offset amount lower than the power measured by the first measurement activity, which would result in a conditional handover.

[0037] User equipment can be configured to have a dual connection with at least a network node having a source master node and a first secondary node, and configuration messages can include a handover request acknowledgment received from the master node, the handover request acknowledgment indicating a first activity which applies configuration for connection with the target master node when an activated first condition of measured radio conditions requests a conditional handover, a deactivated second condition which measures the radio conditions of PSCell, and an activated third condition which determines when the measured radio conditions are below a predetermined amount below the condition requiring a conditional handover, the second condition being activated if the third condition is true.

[0038] The predetermined amount can be, for example, 2 dB, but it may also be a value in the range of 1 to 4 dB.

[0039] The command can cause the user's device to activate the second condition when it detects that at least the third condition is true.

[0040] The instruction can cause the user device to determine a PSCell addition related to the second condition once it detects that at least the first condition is true.

[0041] A network node may consist of a target master node or a source master node.

[0042] If the network node has a source master node, the configuration message may include an RRC reconfiguration message.

[0043] If a network node has a target master node, the configuration message may include an HO request Ack message.

[0044] Measurement activities can be associated with a measurement ID.

[0045] The command can cause the user's device to deactivate at least measurement IDs that do not meet the conditions.

[0046] The command can cause the user's device to deactivate measurement objects that are not linked to at least one active measurement ID.

[0047] The command can cause the user device to deactivate at least a measurement gap or a synchronization signal block-based wireless resource management measurement timing configuration window that is not related to the active measurement object.

[0048] According to various exemplary embodiments, not necessarily all, of the present invention, a user device of a communication network is provided, comprising means for receiving configuration messages from network nodes, the configuration messages providing indications of activities performed by the user device, along with conditions related to the activity, the conditions indicating when the activity is in an active state performed by the user device connected to the network, or in an inactive state in which no measurement activity is performed.

[0049] The user device may have the optional features described above.

[0050] User equipment may be equipped with means for performing measurement activities.

[0051] The user equipment may include means for activating a second measurement activity when a wireless link fault, T310 activation, or beam fault related to the serving PSCell is detected.

[0052] The user device may include means for activating a first measurement activity and means for deactivating a second measurement activity when a cell change is performed from the current serving cell to a target serving cell.

[0053] The user equipment may include means for activating a second measurement activity when the received signal power is lower by an offset amount than the power measured by a first measurement activity, which would lead to a conditional handover.

[0054] The user equipment may include means for activating a second measurement activity when the received signal power is lower by an offset amount than the power measured by a first measurement activity, which would lead to a conditional handover.

[0055] User devices may be equipped with means to deactivate measurement IDs that do not meet the conditions.

[0056] User equipment may include means for deactivating measurement objects that are not linked to an active measurement ID.

[0057] User equipment may include means for deactivating measurement gaps or synchronization signal block-based wireless resource management measurement timing configuration windows that are not linked to an active measurement object.

[0058] According to various exemplary embodiments, though not all, of the present invention, a method is provided which includes the step of receiving a configuration message from a network node, the configuration message providing an indication of an activity performed by a user device, along with conditions associated with the activity, the conditions indicating whether the activity is in an active state performed by a user device connected to the network, or in an inactive state in which no measurement is performed.

[0059] Configuration messages may include measurement configuration messages, and activities may include measurement activities.

[0060] This method may include a step of performing a measurement activity.

[0061] The conditions can indicate whether the user device is in an active state where measurement activities can be performed, or in an inactive state where measurement activities may not be performed.

[0062] The conditions can indicate whether the measurement activity is in an active state, which can be performed by user devices connected to the network, or in an inactive state, which may mean that the measurement activity is not performed.

[0063] Measurement configuration messages can indicate whether a measurement activity is active or inactive by default.

[0064] The conditions can indicate when the measurement activity switches between an active and inactive state.

[0065] Measurement configuration messages can provide indications of multiple measurement activities performed by the user's equipment, along with conditions related to the measurement activity.

[0066] Measurement configuration messages can provide indicators of multiple measurement activities performed by user devices connected to network nodes, along with conditions related to the measurement activity.

[0067] Multiple measurement activities may include a first measurement activity having a first condition and a second measurement activity having a second condition, where the evaluation of the second condition is conditional on the result of the first condition.

[0068] The second measurement activity may have a third condition, and the evaluation of the second condition is conditional on the result of the third condition.

[0069] A first measurement activity may include measuring the radio state of at least one serving cell, and a second measurement activity may include measuring the radio state of at least one target cell. The first measurement activity may be active by default, and the second measurement activity may be inactive by default. The second measurement activity may be switched to an active state when degradation of the radio state measured by the first measurement activity is detected.

[0070] A first measurement activity may include measuring the radio state of at least one serving cell, and a second measurement activity may include measuring the radio state of at least one target cell. The first measurement activity may be active by default, and the second measurement activity may be inactive by default. The second measurement activity may be switched to active when degradation of the radio state measured by the first measurement activity is detected.

[0071] The first measurement activity may include radio link monitoring of at least one serving PCCell, and the second measurement activity may include measuring the radio state of at least one target PCCell, and the second measurement activity may be switched to an active state when a radio link fault, T310 activation, or beam fault related to the serving PCCell is detected.

[0072] This method may include activating a second measurement activity when a radio link fault, T310 activation, or beam fault related to the serving PSCell is detected.

[0073] User equipment can be configured to have a dual connection between at least a network node having a source master node and a first secondary node, and configuration messages can include a handover request acknowledgment received from the master node, the handover request acknowledgment can indicate a first activity that applies configuration for connection with the target master node and the first secondary node when no activated first condition related to serving PSCell is detected, such as a radio link failure, T310 activation or beam failure, the handover request acknowledgment can indicate a second activity that applies configuration for connection with the target master node and the second secondary node when a deactivated second condition is activated, the deactivated second condition is activated when the first condition is false.

[0074] The command causes the user equipment to activate a second condition when it detects at least a radio link failure, T310 activation, or beam failure related to the serving PSCell.

[0075] A network node may consist of a target master node or a source master node.

[0076] If the network node has a source master node, the configuration message may include an RRC reconfiguration message.

[0077] If the network node has a target master node, the configuration message may include an HO Request Ack message.

[0078] A first measurement activity may include measuring the radio state of the current serving cell, and a second measurement activity may include measuring the radio state of the target serving cell. The first measurement activity may be inactive by default, and the second measurement activity may be active by default. The second measurement activity may be switched to inactive when a conditional cell change from the current serving cell to the target serving cell is initiated, and the first measurement activity may be switched to active.

[0079] A first measurement activity may include measuring the radio state of the current serving cell, and a second measurement activity may include measuring the radio state of the target serving cell. The first measurement activity may be inactive by default, and the second measurement activity may be active by default. The second measurement activity may be switched to inactive when a cell change from the current serving cell to the target serving cell occurs, and the first measurement activity may be switched to active.

[0080] This method may include activating a first measurement activity and deactivating a second measurement activity when a cell change is performed from the current serving cell to the target serving cell.

[0081] The user device can be configured to have a dual connection to at least one network node comprising a source master node and a source secondary node, and the configuration message can include an RRC reconfiguration message received from the source master node, the RRC reconfiguration message indicates a first activity of measuring the PSCell of the source secondary node when the user device is connected to the source master node, under a first condition where the measurement is deactivated, and the RRC reconfiguration message indicates a second activity of measuring the PSCell of the target secondary node when the user device is not connected to the target master node, under a second condition where the measurement is activated.

[0082] This method may include activating a first activity to measure the PSCell of the source secondary node and deactivating a second activity to measure the PSCell of the target secondary node in response to performing a conditional primary serving cell change toward the target secondary node.

[0083] This method may include deactivating by deactivating the associated measurement_ID, and activating by activating the associated measurement_ID.

[0084] A network node may include a source master node.

[0085] The configuration message may include an RRC reconfiguration message.

[0086] A first measurement activity may include measuring the radio state of the current serving cell, and a second measurement activity may include measuring the radio state of the target serving cell. The first measurement activity may be active by default, and the second measurement activity may be inactive by default. The second measurement activity may be switched to an active state when degradation exceeding a threshold of radio state measured by the first measurement activity is detected.

[0087] A first measurement activity may include measuring at least the radio state of a serving PCell, a second measurement activity may include measuring at least the radio state of a PSCell, and a measurement configuration message may provide indication of further measurement activities, including measuring at least the radio state of a serving PCell, and further conditions to be met before switching the second measurement activity to the active state.

[0088] Further conditions may include measuring a received signal power that is offset by an amount lower than the power measured by the first measurement activity, which would lead to a conditional handover.

[0089] This method may include activating a second measurement activity when the received signal power is lower by an offset amount than the power measured by a first measurement activity, which would lead to a conditional handover.

[0090] This method may include activating a second measurement activity when the received signal power is lower by an offset amount than the power measured by a first measurement activity, which would lead to a conditional handover.

[0091] User equipment can be configured to have a dual connection between at least a network node having a source master node and a first secondary node, and configuration messages can include a handover request acknowledgment received from the master node, the handover request acknowledgment indicating a first activity which applies configuration for connection with the target master node when a first activated condition of measured radio conditions requests a conditional handover, a deactivated second condition which measures the radio conditions of PSCell, and a third activated condition which determines when the measured radio conditions are below a predetermined level below the condition requiring a conditional handover, the second condition which is activated when the third condition is true.

[0092] The predetermined amount can be, for example, 2 dB, but it may also be a value in the range of 1 to 4 dB.

[0093] This method may include activating the second condition when it detects that the third condition is true.

[0094] This method may include determining a PSCell addition related to a second condition once it detects that a first condition is true.

[0095] A network node may consist of a target master node or a source master node.

[0096] If the network node has a source master node, the configuration message may include an RRC reconfiguration message.

[0097] If a network node has a target master node, the configuration message may include an HO request Ack message.

[0098] Measurement activities can be associated with a measurement ID.

[0099] This method may include deactivating measurement IDs that do not meet the criteria.

[0100] This method may include deactivating measurement objects that are not linked to an active measurement ID.

[0101] This method may include deactivating a measurement gap or a synchronization signal block-based wireless resource management measurement timing configuration window that is not related to the active measurement object.

[0102] According to various exemplary embodiments, not necessarily all, of the present invention, there is a non-temporary computer-readable medium storing program instructions, the program instructions being for performing at least the step of receiving a configuration message from a network node, the configuration message providing an indication of an activity to be performed by a user device, along with conditions related to the activity, the conditions indicating when the activity is in an active state to be performed by a user device connected to the network or when the measurement activity is in an inactive state in which no measurement activity is performed.

[0103] The instruction has optional characteristics of the above method and can be executed.

[0104] In various exemplary embodiments, not necessarily all, of the present invention, a network node of a communication network is provided, comprising at least one processor and at least one memory for storing instructions, wherein, when the instructions are executed by the at least one processor, the network node causes at least one user device to send a configuration message, the configuration message provides an indication of an activity performed by the user device, along with a condition associated with the activity, the condition indicating whether the activity is in an active state performed by a user device connected to the network or in an inactive state where no measurement activity is performed.

[0105] Configuration messages may include measurement configuration messages, and activities may include measurement activities.

[0106] The conditions can indicate whether the user device is in an active state where measurement activities are being performed, or in an inactive state where measurement activities are not being performed.

[0107] The conditions can indicate whether the measurement activity is active, performed by a user device connected to the network, or inactive, when no measurement activity is performed.

[0108] Measurement configuration messages can indicate whether a measurement activity is active or inactive by default.

[0109] The conditions can indicate when the measurement activity switches between an active and inactive state.

[0110] Measurement configuration messages can provide indications of multiple measurement activities performed by the user's equipment, along with conditions related to the measurement activity.

[0111] Measurement configuration messages can provide indicators of multiple measurement activities performed by user devices connected to network nodes, along with conditions related to the measurement activity.

[0112] Multiple measurement activities may include a first measurement activity having a first condition and a second measurement activity having a second condition, where the evaluation of the second condition is conditional on the result of the first condition.

[0113] The second measurement activity may have a third condition, and the evaluation of the second condition is conditional on the result of the third condition.

[0114] A first measurement activity may include measuring the radio state of at least one serving cell, and a second measurement activity may include measuring the radio state of at least one target cell. The first measurement activity may be active by default, and the second measurement activity may be inactive by default. When degradation of the radio state measured by the first measurement activity is detected, the second measurement activity is switched to the active state.

[0115] A first measurement activity may include measuring the radio state of at least one serving cell, and a second measurement activity may include measuring the radio state of at least one target cell. The first measurement activity may be active by default, and the second measurement activity may be inactive by default, and the second measurement activity may be switched to active when degradation of the radio state measured by the first measurement activity is detected.

[0116] The first measurement activity may include radio link monitoring of at least one serving PCCell, and the second measurement activity may include measuring the radio state of at least one target PCCell, and the second measurement activity may be switched to an active state when a radio link fault, T310 activation, or beam fault related to the serving PCCell is detected.

[0117] User equipment can be configured to have a dual connection of at least a network node with a source master node and a first secondary node, and configuration messages include a handover request acknowledgment sent from the master node, the handover request acknowledgment indicating a first activity that applies configuration for connection with the target master node and the first secondary node when no activated first condition related to serving PSCell is detected, such as a radio link failure, T310 activation or beam failure, the handover request acknowledgment indicates a second activity that applies configuration for connection with the target master node and the second secondary node when a deactivated second condition is activated, the deactivated second condition is activated when the first condition is false.

[0118] The command can cause the user equipment to activate a second condition when it detects at least a radio link fault, T310 activation, or beam fault related to the serving PSCell.

[0119] A network node may consist of a target master node or a source master node.

[0120] If the network node has a source master node, the configuration message may include an RRC reconfiguration message.

[0121] If a network node has a target master node, the configuration message may include an HO request Ack message.

[0122] A first measurement activity may include measuring the radio state of the current serving cell, and a second measurement activity may include measuring the radio state of the target serving cell. The first measurement activity may be inactive by default, and the second measurement activity may be active by default. The second measurement activity may be switched to inactive when a conditional cell change from the current serving cell to the target serving cell is initiated, and the first measurement activity may be switched to active.

[0123] A first measurement activity may include measuring the radio state of the current serving cell, and a second measurement activity may include measuring the radio state of the target serving cell. The first measurement activity may be inactive by default, and the second measurement activity may be active by default. The second measurement activity may be switched to inactive when a cell change from the current serving cell to the target serving cell occurs, and the first measurement activity may be switched to active.

[0124] The user device can be configured to have a dual connection to at least a network node comprising a source master node and a source secondary node, and the configuration message can include an RRC reconfiguration message sent from the source master node, the RRC reconfiguration message indicating a first activity in which the PSCell of the source secondary node is measured under a first condition that the measurement is inactive when the user device is connected to the source master node, and the RRC reconfiguration message indicates a second activity in which the PSCell of the target secondary node is measured under a second condition that the measurement is active when the user device is not connected to the target master node.

[0125] A network node may include a source master node.

[0126] The configuration message may include an RRC reconfiguration message.

[0127] A first measurement activity may include measuring the radio state of the current serving cell, and a second measurement activity may include measuring the radio state of the target serving cell. The first measurement activity may be active by default, and the second measurement activity may be inactive by default. The second measurement activity may be switched to an active state when degradation exceeding a threshold of radio state measured by the first measurement activity is detected.

[0128] A first measurement activity may include measuring at least the radio state of a serving PCell, a second measurement activity may include measuring at least the radio state of a PSCell, and a measurement configuration message may provide indication of further measurement activities, including measuring at least the radio state of a serving PCell, and further conditions to be met before switching the second measurement activity to the active state.

[0129] Further conditions may include measuring a received signal power that is offset by an amount lower than the power measured by the first measurement activity, which would lead to a conditional handover.

[0130] User equipment can be configured to have a dual connection with at least a network node having a source master node and a first secondary node, and configuration messages can include a handover request acknowledgment sent from the master node, the handover request acknowledgment indicating a first activity which applies configuration for connection with the target master node when an activated first condition of measured radio conditions requests a conditional handover, a deactivated second condition which measures the radio conditions of PSCell, and an activated third condition which determines when the measured radio conditions are below a predetermined level below the condition requiring a conditional handover, the second condition being activated if the third condition is true.

[0131] The predetermined amount can be, for example, 2 dB, but it may also be a value in the range of 1 to 4 dB. The predetermined amount can be, for example, 2 dB, but it may also be a value in the range of 1 to 4 dB.

[0132] The command can cause the user's device to activate the second condition when it detects that at least the third condition is true.

[0133] The instruction can cause the user device to determine a PSCell addition related to the second condition once it detects that at least the first condition is true.

[0134] A network node may consist of a target master node or a source master node.

[0135] If the network node has a source master node, the configuration message may include an RRC reconfiguration message.

[0136] If a network node has a target master node, the configuration message may include an HO request Ack message.

[0137] Measurement activities can be associated with a measurement ID.

[0138] According to various exemplary embodiments, not necessarily all, of the present invention, a network node of a communication network is provided, which has means for sending configuration messages to user devices, the configuration messages providing indications of activities performed by the user devices, along with conditions related to the activities, the conditions indicating when the activity is in an active state performed by user devices connected to the network, or in an inactive state in which no measurement activity is performed.

[0139] The user device may have the optional features described above.

[0140] According to various exemplary embodiments, though not all, of the present invention, a method is provided which includes the step of sending a configuration message to a user device, the configuration message providing an indication of an activity to be performed by the user device, along with conditions related to the activity.

[0141] Configuration messages may include measurement configuration messages, and activities may include measurement activities.

[0142] The conditions can indicate whether the measurement activity is active, being performed by the user's device, or inactive, when the measurement activity is not being performed.

[0143] The conditions can indicate whether the measurement activity is active, performed by a user device connected to the network, or inactive, when the measurement activity is not being performed.

[0144] Measurement configuration messages can indicate whether a measurement activity is active or inactive by default.

[0145] The conditions can indicate when the measurement activity switches between an active and inactive state.

[0146] Measurement configuration messages can provide indications of multiple measurement activities performed by the user's equipment, along with conditions related to the measurement activity.

[0147] Measurement configuration messages can provide indicators of multiple measurement activities performed by user devices connected to network nodes, along with conditions related to the measurement activity.

[0148] Multiple measurement activities may include a first measurement activity having a first condition and a second measurement activity having a second condition, where the evaluation of the second condition is conditional on the result of the first condition.

[0149] The second measurement activity may have a third condition, and the evaluation of the second condition is conditional on the result of the third condition.

[0150] A first measurement activity may include measuring the radio state of at least one serving cell, and a second measurement activity may include measuring the radio state of at least one target cell. The first measurement activity may be active by default, and the second measurement activity may be inactive by default. The second measurement activity may be switched to an active state when degradation of the radio state measured by the first measurement activity is detected.

[0151] A first measurement activity may include measuring the radio state of at least one serving cell, and a second measurement activity may include measuring the radio state of at least one target cell. The first measurement activity may be active by default, and the second measurement activity may be inactive by default. The second measurement activity may be switched to active when degradation of the radio state measured by the first measurement activity is detected.

[0152] The first measurement activity may include radio link monitoring of at least one serving PCCell, and the second measurement activity may include measuring the radio state of at least one target PCCell, and the second measurement activity may be switched to an active state when a radio link fault, T310 activation, or beam fault related to the serving PCCell is detected.

[0153] User equipment can be configured to have a dual connection of at least a network node with a source master node and a first secondary node, and configuration messages include a handover request acknowledgment sent from the master node, the handover request acknowledgment indicating a first activity that applies configuration for connection with the target master node and the first secondary node when no activated first condition related to serving PSCell is detected, such as a radio link failure, T310 activation or beam failure, the handover request acknowledgment indicates a second activity that applies configuration for connection with the target master node and the second secondary node when a deactivated second condition is activated, the deactivated second condition is activated when the first condition is false.

[0154] The command can cause the user equipment to activate a second condition when it detects at least a radio link fault, T310 activation, or beam fault related to the serving PSCell.

[0155] A network node may consist of a target master node or a source master node.

[0156] If the network node has a source master node, the configuration message may include an RRC reconfiguration message.

[0157] If a network node has a target master node, the configuration message may include an HO request Ack message.

[0158] A first measurement activity may include measuring the radio state of the current serving cell, and a second measurement activity may include measuring the radio state of the target serving cell. The first measurement activity may be inactive by default, and the second measurement activity may be active by default. The second measurement activity may be switched to inactive when a conditional cell change from the current serving cell to the target serving cell is initiated, and the first measurement activity may be switched to active.

[0159] A first measurement activity may include measuring the radio state of the current serving cell, and a second measurement activity may include measuring the radio state of the target serving cell. The first measurement activity may be inactive by default, and the second measurement activity may be active by default. The second measurement activity may be switched to inactive when a cell change from the current serving cell to the target serving cell occurs, and the first measurement activity may be switched to active.

[0160] The user device can be configured to have a dual connection to at least one network node comprising a source master node and a source secondary node, and the configuration message comprises an RRC reconfiguration message sent from the source master node, the RRC reconfiguration message indicates a first activity in which the PSCell of the source secondary node is measured under a first condition that the measurement is inactive when the user device is connected to the source master node, and the RRC reconfiguration message indicates a second activity in which the PSCell of the target secondary node is measured under a second condition that the measurement is active when the user device is not connected to the target master node.

[0161] A network node may include a source master node.

[0162] The configuration message may include an RRC reconfiguration message.

[0163] A first measurement activity may include measuring the radio state of the current serving cell, and a second measurement activity may include measuring the radio state of the target serving cell. The first measurement activity may be active by default, and the second measurement activity may be inactive by default. The second measurement activity may be switched to an active state when degradation exceeding a threshold of radio state measured by the first measurement activity is detected.

[0164] The first measurement activity may include measuring at least the radio state of the serving PCell, the second measurement activity may include measuring at least the radio state of the PSCell, and the measurement configuration message may provide indication of further measurement activities, including measuring at least the radio state of the serving PCell, and further conditions to be met before switching the second measurement activity to the active state.

[0165] Further conditions may include measuring a received signal power that is offset by an amount lower than the power measured by the first measurement activity, which would lead to a conditional handover.

[0166] User equipment can be configured to have a dual connection with at least a network node having a source master node and a first secondary node, and configuration messages include a handover request acknowledgment sent from the master node, the handover request acknowledgment indicating a first activity which applies configuration for connection with the target master node when an activated first condition of measured radio conditions requests a conditional handover, a deactivated second condition which measures the radio conditions of PSCell, and an activated third condition which determines when the measured radio conditions are below a predetermined amount below the condition requiring a conditional handover, the second condition which is activated when the third condition is true.

[0167] The predetermined amount can be, for example, 2 dB, but it may also be a value in the range of 1 to 4 dB.

[0168] The command can cause the user's device to activate the second condition when it detects that at least the third condition is true.

[0169] The instruction can cause the user device to determine a PSCell addition related to the second condition once it detects that at least the first condition is true.

[0170] A network node may consist of a target master node or a source master node.

[0171] If the network node has a source master node, the configuration message may include an RRC reconfiguration message.

[0172] If a network node has a target master node, the configuration message may include an HO request Ack message.

[0173] Measurement activities can be associated with a measurement ID.

[0174] According to various exemplary embodiments, not necessarily all, of the present invention, there is a non-temporary computer-readable medium storing program instructions, the program instructions being for performing at least the step of sending a configuration message to a user device, the configuration message providing an indication of an activity to be performed by the user device, along with conditions related to the activity, the conditions indicating when the activity is in an active state to be performed by a network-connected user device or when the measurement activity is in an inactive state to be performed.

[0175] The instruction can be executed having the characteristics of an optional choice of the above method.

[0176] Further specific preferred embodiments are described in the attached independent and dependent claims. The features of the dependent claims may be combined, as appropriate, with the features of the independent claims in combinations other than those expressly described in the claims.

[0177] If a feature of a device is described as being capable of operating to provide a certain function, it will be understood that this includes features of the device that provide, or are adapted or configured to provide, that function.

[0178] Several exemplary embodiments will be described with reference to the attached drawings. [Brief explanation of the drawing]

[0179] [Figure 1] This diagram shows messaging during a conditional handover (CHO) for intra-new radio (NR). [Figure 2] This diagram shows messaging during Inter-SN conditional primary-secondary cell changes initiated by a secondary node (SN). [Figure 3]This figure shows messaging for conditional activation in the case of a CHO+PSCell change RLM-based scenario, according to an exemplary embodiment. [Figure 4] This figure shows messaging for conditional activation in the case of selective activation, according to an exemplary embodiment. [Figure 5] This figure shows messaging for conditional activation in the case of CHO+MR-DC according to an exemplary embodiment. [Figure 6] This figure shows the steps performed by the user's equipment for activating / deactivating the measurement, according to an exemplary embodiment. [Figure 7] This figure shows a new 5G wireless network according to an exemplary embodiment. [Modes for carrying out the invention]

[0180] Before describing exemplary embodiments in more detail, an overview is first provided. In some exemplary embodiments, it is recognized that some events in which a user device (UE) is expected to perform an activity for all configured execution conditions as soon as a new configuration is received can be a waste of resources. Therefore, in some exemplary embodiments, a technique is provided in which an indicator or activate configuration message for an activity to be performed by the user device provides or encodes an indicator for one or more conditions related to the performance of the activity. The configuration message is typically sent from a network node of a wireless communication network to the user device (possibly via another network node). The indicator is typically encoded in an existing configuration message that passes between the network node and the user device. The user device typically performs or activates the activity when the conditions are met, and avoids or cancels the performance of the activity when the conditions are not met, or vice versa. The configuration message may also provide or encode an indicator of whether to activate or not activate the activity to be performed by default. Multiple conditions can be configured and processed hierarchically, cascaded, or dependent on each other. The conditions are typically configured to prevent user equipment from performing an activity when the network determines that performing the activity under those conditions would be a waste of resources.

[0181] Before detailing several exemplary embodiments, the following background information is provided. As shown in Figure 1, in Conditional Handover (CHO) Rel. 16, the user equipment (UE) is configured with a CHO target cell configuration and at least one CHO execution condition to determine when to perform a handover to one or more prepared target cells. This execution condition is based on radio measurement values ​​of the serving cell and the target cell. In the CHO configuration, the target cell may have a reserved Cell Radio Network Temporary Identifier (C-RNTI) and contention-free random access (CFRA) resources for the UE. The UE evaluates the CHO condition, and if the condition is met for a particular target cell, the UE can apply the CHO configuration for the target cell and initiate random access to the target cell using the reserved CFRA resources. The UE may be configured with multiple conditions for multiple target cells. The CHO is designed so that, after receiving a measurement report from the UE (as shown in step 1 of Figure 1), the UE can trigger a handover without the serving cell having to send an additional handover command to trigger the execution of the HO (when the conditions for executing the CHO are met). Step 1: The UE sends a measurement report identifying the adjacent cells that may be subject to a handover. Steps 2-8: In response to the measurements received in step 1, the source node decides that it needs to prepare a CHO for the UE, - the source radio access network (RAN) node sends CHO requests to multiple target RAN nodes, - in each CHO request message, the source node indicates the target primary cell (PCell) that needs to be prepared by the target node, - the target RAN nodes perform admission control and send a handover request acknowledgment (ACK) for the requested PCell and associated conditional configuration in response to the HO request. Step 9: The source RAN node sends a Radio Resource Control (RRC) reconfiguration message to the UE with the conditional configuration related to the CHO.Steps 10-11: The UE evaluates the execution conditions of the CHO and performs a conditional configuration toward the target cell prepared for the CHO if the conditions are met. Steps 11-14: The UE executes the CHO toward the target cell controlled by the target RAN node. Step 15: The target RAN node indicates the success of the handover to the source RAN node. Step 16: User plane procedures such as data transfer and route switching are then completed.

[0182] Rel.16 specifies conditional primary serving cell (PSCell) modification (CPC) for intra-secondary node (SN) scenarios [TS37.340]. CPC was extended in Rel.17 for intra-SN scenarios and has two types: master node (MN)-initiated CPC and SN-initiated CPC [R2-2111640]. This is shown in Figure 2, which provides a high-level illustrative signaling diagram of an SN-initiated conditional primary serving cell (PSCell) addition and modification (CPAC). In step 1, the source SN indicates to the MN the indication (ID) of the target SN that must be contacted in order to prepare the target PSCell. The source SN proposes a list of PSCells that each target SN should prepare and provides the CPC execution conditions for each proposed target PSCell. In steps 2-3, the MN sends an add request to each target SN indicated by the source SN. In steps 4-5, the target SN determines candidate target PSCells to prepare from among the target PSCells proposed by the source SN to be prepared. In steps 6-7, the target SN sends the CPC configuration and ID of each prepared target PSCell to the MN. In step 8, the MN sends a conditional (re)configuration to the UE, including the CPC configuration and CPC execution conditions for the candidate target PSCells. In step 9, the UE sends a message to the MN acknowledging receipt of the conditional configuration, and the MN sequentially acknowledging the SN changes prepared in step 10 to the source SN. In step 11, the UE evaluates the CPC execution conditions for the prepared target PSCells. In step 12, for example, the CPC execution conditions are met for a candidate PSCell of target SN1. In step 13, the UE sends a message to the MN indicating that the execution of the CPC configuration is being indicated. This message includes the embedded SN RRC reconfiguration Complete for target SN1, which was sent in step 14.The UE completes the random access in step 15.

[0183] As mentioned above, several mobility mechanisms rely on dual execution events (CHO for single or dual connections) or two special execution conditions (CHO+CPAC). Based on the current specifications, the UE is expected to begin measuring all configured execution conditions as soon as the new configuration is received, i.e., as soon as the target cell is ready. However, as will be explained in more detail below, this is not optimal in certain cases. More specifically, the UE may perform unnecessary measurements, resulting in wasted energy and / or unnecessary allocation of measurement gaps. These may be timing-based cases, where the UE consists of two measurement IDs, one for the PCell and the other for the PSCell. Measurement ID 1 is an A3 event for a PCell change with a TTT (Time To Trigger) of 150ms. Measurement ID 2 could be another A3 event for a PSCell change with a TTT of 0ms, and the PSCell change is triggered immediately after the PCell change. In this case, since the UE cannot perform a PSCell change before a PCell change, measurement-ID2 should not be started before measurement-ID1. In the selective activation feature of cell groups in Rel18, a serving cell can provide the user with a unique conditional reconfiguration that the UE applies when it needs to return to the serving cell group. The conditions associated with the unique conditional reconfiguration should only be evaluated by the UE if it is no longer served by this cell. Otherwise, the UE would not have to evaluate a condition that will never be met, i.e., the UE would compare the unique serving cell power to the same cell power, rather than to adjacent cells. These can be measurement-based cases. Dual-event execution of CHO / PCell change: The UE can set two execution conditions: one based on reference signal received power (RSRP) and another based on reference signal received quality (RSRQ). Since the common denominator of the two quantities is RSRP, if RSRP is below a given certain threshold, RSRQ may not be above another certain threshold.Therefore, unless the first condition is met, it may be a waste of energy for the UE to start measuring the other condition. Thus, the UE will waste energy by measuring RSRQ when RSRP is bad. CHO+PSCell Change RLM-Based Scenario: The target MN can prepare multiple PSCells for the UE, including the PSCell currently in service, and the conditions for PSCell changes may be related to RSRP. As long as the Radio Link Monitoring (RLM) of the PSCell currently in service is good, it may not be necessary to measure other PSCells. One way to stop measurements by the UE is to implement explicit RRC reconfiguration, in which a new measurement configuration is sent to the UE each time a measurement is started and stopped. In the current Object 2 of the Mobility Improvement Work Item, we are trying to avoid cases where the UE is frequently reconfigured and minimize signaling overhead.

[0184] In some exemplary embodiments, it has been proposed to include additional criteria or conditions for a measurement-ID or other activity identifier within the measurement or other activity configuration message in order to start and stop a measurement or other activity of the UE associated with the measurement-ID or other activity identifier. These additional conditions could be, for example, another measurement-ID, a trigger point, etc. In other words, conditions are introduced for activating and / or stopping a measurement or other activity. The UE can autonomously monitor the fulfillment of these conditions, thus providing efficient use of resources and allowing it to focus on the most valuable / relevant measurements or activities. Multiple conditions can be configured, for example, to be processed hierarchically, cascaded, or dependent on each other. Next, we will explain these additional criteria in more detail.

[0185] Another measurement - ID In this case, the UE starts or activates a measurement-ID only when an event or condition associated with another measurement-ID is met. This can be employed, for example, in the following scenario: dual conditions for DC-CHO execution.

[0186] In one exemplary embodiment, the UE initiates measurement of a target PCell only when another measurement-ID for the target PCell is met. For example, suppose the network is provided with a CHO condition that has a 3dB run offset for the target PCell, i.e., a handover occurs when the target PCell is 3dB stronger than the source cell. The network may provide another condition with a 1dB offset, which, when provided, triggers the UE to initiate evaluation of the target PCell. Thus, the UE initiates measurement evaluation of the target PCell only when the CHO condition for the corresponding target PCell is about to be met.

[0187] The use of the specific 1dB and 3dB offsets mentioned above is merely illustrative, and it should be understood that other values ​​may be set depending on the network, such as values ​​within the range of approximately 0.5dB to 5dB. These may depend on the network conditions, be set individually for each user device, or be pre-set. Typically, the offset is a smaller amount than the execution offset.

[0188] Other measurement-ID intermediate trigger point In this case, the measurement is linked to an intermediate stage of another measurement-ID, such as the start of the time-to-trigger or an offset from the actual event threshold. This approach avoids delays in the start of the dependent measurement.

[0189] In one exemplary embodiment, the UE may provide the conditions of the target PSC cell associated with a prepared target PCCell in the CHO. The UE may not need to evaluate the conditions of the PSCell unless the input conditions of the target PCell are met. That is, the UE evaluates the measured ID of the target PScell ​​only if the input conditions of the corresponding target PCell are met.

[0190] In one exemplary embodiment, the UE evaluates the measured ID of the target PScell ​​only if the TTT of the target PCell exceeds a certain value.

[0191] Serving cell In this case, the UE deactivates the evaluation of the measurement-ID associated with serving cell "X" (triggering conditional reconfiguration) as long as the UE is being served by that serving cell "X".

[0192] In one exemplary embodiment, the UE does not evaluate the conditions associated with the conditional reconfiguration of the cell to which it is connected. The UE does not evaluate the conditions associated with that conditional reconfiguration as long as it is being served by a cell with that conditional reconfiguration. This approach can be used in instances where a common measurement configuration exists that covers all measurement-IDs of all participating cells.

[0193] Specific trigger points In this case, if the UE detects any of the following in any of the serving cell groups: radio link failure (RLF), T310 initiation (or radio link degradation), or beam failure event, the UE activates and performs the measurement-ID evaluation. This also applies to the CHO+PSCell modified RLM-based scenario described above.

[0194] If a measurement object is mapped only to a deactivate measurement-ID, the UE can deactivate that measurement. If synchronous signal block (SSB) based radio resource management (RRM) measurement timing configuration (SMTC) windows and measurement gaps are configured only for deactivate measurement objects, the scheduling restrictions associated with that SMTC or measurement gap will no longer be applied by the UE. The UE can indicate the status of scheduling restrictions, SMTC windows, measurement gaps, or measurement objects to the network. The network can use this information to schedule or reconfigure the UE. This approach results in energy-efficient and / or simplified configuration of measurement gaps for the UE and reduces the number of reconfigurations the network needs to perform.

[0195] Example of a CHO+PSCell modified RLM Figure 3 shows the main steps of conditional activation in the case of a CHO+PSCell change RLM-based scenario.

[0196] In Step 1, the UE consists of a dual connection provided by MN1 and SN1.

[0197] In step 2-7, based on the measurement report received from the UE, source MN1 prepares the CHO for target MN2, and target MN2 prepares the CPAC for SN1 and SN2.

[0198] In step 8, target MN2 sends source MN1 an HO request ACK containing two configurations. Configuration 1 includes the MCG2 configuration + the SCG1 configuration with CPA condition 1 activated. Condition 1 is RLM-based, and the UE applies the SCG1 configuration when no degradation of the radio state of the serving PSCell is detected in SN1, i.e., when no RLF is detected for the serving PSCell, T310 is not initiated for the serving PSCell, or no beam obstruction is detected for the serving PSCell. Configuration 2 includes the MCG2 configuration + SCG2 configuration, with condition 2 deactivated. Condition 2 is the measurement-ID associated with SCG2 and is activated only if condition 1 is not met.

[0199] In steps 9 through 11, source MN1 notifies SN1 of the SN change, and MN1 sends an RRC reconfiguration message to the UE containing the two configurations received from target MN2. The fixed object is linked only to the measurement-ID of condition 2. If condition 2 is invalidated, the measurement object may also be invalidated. The UE deactivates the measurement gap or SMTC associated with the measurement-ID of condition 2.

[0200] In steps 13-14, the UE first evaluates the CHO conditions that will be met later. The UE delays the application of the MCG2 configuration and verifies the activation conditions in configuration 1. The delay in applying the MCG2 configuration should be limited to avoid the risk of RLF.

[0201] In step 16, when an SCG failure is detected in SCG1, a second condition belonging to configuration 2 is activated and evaluated by the UE in steps 17 through 20. When condition 2 is activated, the measurement object is also activated and the UE starts the measurement. When the measurement object is activated, the UE activates the SMTC and the measurement gap.

[0202] Once the second condition is met, the UE applies configuration 2 and accesses SN2.

[0203] Example of conditional activation Figure 4 shows the main steps of conditional activation in the case of selective activation. When self-preparing during inter-SN CPC, the UE starts with a dual connection to MN and SN0-PSCell 0-1. Source SN-0 sends a conditional setting related to PSCell 0-1 (this is called self-preparation). This is a conditional setting for the serving PSCell. The triggers for such self-preparation are the preparation of other CPCs and CPAs, and the triggers for PSCell changes.

[0204] In step 1, source SN0 indicates to MN the need for SN changes, including self-prepared configurations.

[0205] In step 2-3, the originating MN sends an RRC reconfiguration to the UE. This RRC reconfiguration includes condition 1 for deactivation for self-preparation of PSCell 0-1, and also deactivates the corresponding measurement-ID confirmed by the UE.

[0206] In step 4, the UE monitors the CPC execution conditions set by PSCell 0-1.

[0207] In step 5, the CPC conditions for PSCell 1-1 of target SN1 are retained, and the UE accesses them.

[0208] In step 6, the UE activates measurement ID 4 for PSCell 0-1 as is, and deactivates measurement ID 1 for PSCell 1-1 because PSCell 1-1 has become the serving PSCell.

[0209] Conditional activation in the case of CHO+MR-DC Figure 5 shows the main steps of conditional activation in the case of CHO+MR-DC.

[0210] In Step 1, in the case of CHO+MR-DC(CPAC), the UE initiates dual connection with MN1 and SN1.

[0211] In steps 2-7, source MN1 prepares CHO for target MN2, and target MN2 prepares SN1 and SN2.

[0212] In steps 8 through 11, MN2 sends MN1 an HO request acknowledgment containing configuration 1 of MCG2+SCG1, which has two conditions: CHO condition 1 (activate) and deactivate condition 2 corresponding to the PScell ​​change. Condition 2 is activated if another condition 3 is valid. In this example, condition 3 has an offset 2 dB lower than the offset of the CHO execution condition. The HO command is sent to the UE.

[0213] In step 13, the UE evaluates conditions 1 and 3.

[0214] In step 14, if condition 3 is met, condition 2 is activated.

[0215] In Step 15, the UE evaluates Condition 2 (for CPA) and Condition 1 (for CHO).

[0216] In step 16, if condition 1 is met, the UE has sufficient measurements to determine the addition of PSCell for condition 2.

[0217] In steps 17 and 18, the UE applies setting 1 and accesses SN2.

[0218] UE operation example Figure 6 shows the main steps that the UE performs for activating / deactivating the measurement.

[0219] In step 1, the UE receives condition 1 related to measurement-ID1.

[0220] In steps 2-3, the UE evaluates condition 1 and, after determining that it is not retained, deactivates measurement ID 1.

[0221] In steps 4-6, the UE deactivates the measurement-object after determining that the measurement-object is mapped only to measurement-ID1 and that this has been deactivated.

[0222] In steps 7-9, the measurement-gap 1 configuration / SMTC1 is also deactivated because it is used only for the deactivated measurement object 1.

[0223] This approach can be used for multiple measurement IDs associated with the same measurement object, and it will be understood that the measurement object will only be deactivated when all measurement IDs associated with that measurement object have been deactivated. Similarly, this approach can be used for multiple measurement objects associated with the same measurement gap / SMTC, and that measurement gap / SMTC will only be deactivated when all measurement objects associated with that measurement gap / SMTC have been deactivated.

[0224] By using this approach, the UE can perform measurements optimally and on time while minimizing energy waste and / or measurement gap allocation.

[0225] Figure 7 schematically illustrates a new 5G wireless network in an embodiment. This network comprises multiple primary cells 22, 24 and multiple secondary cells 32, 34. Wireless coverage within primary cell 22 is supported by master distributed node 21, and master distributed node 26 supports the provision of wireless coverage within primary cell 24. Both master distributed node 21 and master distributed node 26 are controlled by master central node 41.

[0226] There are secondary cells 32 and 34, and the wireless coverage within these cells is supported by secondary distributed nodes 31 and 33, respectively. Secondary distributed nodes 31 and 33 are controlled by a secondary central node 35. In this example, user device 10 is currently connected to secondary cell 34, supported by secondary distributed node 33, and primary cell 24, supported by distributed node 26. Thus, user device 10 is operating in dual-connection mode. In this example, user device 10 is moving from secondary cell 34 to secondary cell 32, and simultaneously moving from master cell 24 to master cell 22.

[0227] The user device 10 includes a receiver 16 for receiving signals, which may be a receiving means or a circuit configured to receive. The user device 10 further includes means 17 for establishing dual connectivity, which may be a circuit configured to establish dual connectivity, and means 18 for performing measurements, which may also be a circuit configured to perform measurements, which may be L1 signal strength and / or quality measurements. The user device 10 also includes a transmitter 19 or a transmitting means. The receiver 16 can receive measurement configuration information from the distributed node 26 for performing measurements related to a non-serving marter cell (in this case cell 22) and a secondary cell (in this case cell 32), which are two cells for target handover. The user device can perform measurements on these cells and respond to receiving them by sending a measurement report to the distributed node 26.

[0228] This is merely illustrative, and in other embodiments, there may be two or more cells that receive measurement configuration information and perform measurements, and in other embodiments, a serving secondary cell may span two master cells, in which case the measurement performed on the secondary cell may relate to the current serving secondary cell, but the measurement may be, for example, on a frequency band reconfigured for that cell.

[0229] The serving master distributed node 26 includes a receiver 51, which may be a receiving means or circuit configured to make a handover decision regarding the handover destination cell, using a decision means 52 or circuit configured to receive measurement reports and, in response, perform a handover decision. After making a handover decision, the serving master distributed node 26 uses a means 53 or circuit configured to generate cell change indications to generate cell change indications, which indicate any changes in the primary serving cell and the secondary cell determined in the handover decision. The serving master distributed node 26 then uses a transmission means 54 to transmit this information to the user device as part of a Layer 2 message.

[0230] Before the user equipment receives the measurement configuration information and the above steps are executed, some form of cooperation takes place between the secondary central node and the master central node.

[0231] The serving master central node 41 works with the serving secondary central node 35 to determine the configuration of the primary cell prepared for lower-layer mobility, and the corresponding changes that may be required in the secondary cell configuration and / or the configuration of the secondary cell prepared for lower-layer mobility.

[0232] The master central node 41 uses a determination means 43 or a circuit configured to determine the primary cell prepared for lower-layer mobility, and transmits this information to the secondary central node 35 using a transmission means 45 or a circuit configured to transmit either a secondary node addition request or a secondary node change request.

[0233] The secondary central node 35 receives this information at the receiver 37 and, in response, generates a configuration for at least one secondary cell compatible with the master cell prepared for lower-layer mobility using the configuration information generation means 36 or a circuit configured to generate configuration information, and can transfer this configuration information using the transmitter 38 in a secondary node addition response or secondary node change response.

[0234] The master central node 41 includes a receiving means 47 or a circuit configured to receive this secondary cell configuration information. Next, the master central node 41, in cooperation with the serving master distributed nodes, generates reconfiguration information for the primary cells and at least one reconfigured secondary cells using means or a circuit configured to generate measurement configuration requests 42, wherein the configuration requests indicate a plurality of primary cells and at least one secondary cell for which measurement information is requested. This is transmitted to the serving master distributed nodes using a transmitting means 45.

[0235] The serving master distributed node 26 receives this information at the receiver 51 and uses the transfer means 55 to transfer the measurement configuration information to the user device 10 so that the user device can perform the above-mentioned measurements.

[0236] The following description may provide further details on alternatives, modifications, and variations: The gNB is provided, for example, from a node connected to the 5GC via the NG interface, which is provided with NR user plane and control plane protocol termination toward the UE, and is connected, for example, in accordance with Section 3.2 of 3GPP TS 38.300 V16.6.0 (2021-06), incorporated by reference.

[0237] The gNB Central Unit (gNB-CU) includes, for example, logical nodes that host the gNB's RRC (Radio Resource Control), SDAP (Service Data Adaptive Protocol), and PDCP (Packet Data Convergence Protocol) protocols, or the en-gNB's RRC and PDCP protocols that control the operation of one or more gNB-DUs. The gNB-CU terminates the F1 interface connected to the gNB-DU.

[0238] A gNB distributed unit (gNB-DU) comprises logical nodes that host, for example, the RLC (Radio Link Control), MAC (Media Access Control), and PHY (Physical) layers of a gNB or en-gNB, with some of its operation controlled by a gNB-CU. A single gNB-DU supports one or more cells. A single cell is supported by only one gNB-DU. The gNB-DU terminates an F1 interface connected to the gNB-CU.

[0239] The gNB-CU-Control Plane (gNB-CU-CP) comprises a logical node that hosts, for example, the control plane portion of the RRC and PDCP protocols of the gNB-CU of the en-gNB or gNB. The gNB-CPU-CP terminates the E1 interface connected to the gNB-CU-UP and the F1-C interface connected to the gNB-DU.

[0240] The gNB-CU-UserPlane (gNB-CU-UP) comprises, for example, the user plane portion of the gNB-CU PDCP protocol for en-gNB, and a logical node that hosts the user plane portion of the gNB-CU PDCP protocol and the SDAP protocol for gNB. The gNB-CU-UP terminates the E1 interface connected to the gNB-CPU-CP and the F1-U interface connected to the gNB-DU, for example, according to Section 3.1 of 3GPP TS 38.401 V16.6.0 (2021-07), incorporated by reference.

[0241] Different functional divisions are possible between the central and distributed units, for example, by calling options: Option 1 (splitting like 1A): -This option's functional division is similar to the DC's 1A architecture. RRC is located in the central unit. PDCP, RLC, MAC, physical layer, and RF are located in the distributed unit. Option 2 (3C-like splitting): -This optional feature separation is similar to the DC's 3C architecture. RRC and PDCP are located in the central unit. RLC, MAC, physical layer, and RF are located in the distributed unit. Option 3 (RLC internal splitting): - Low RLC (some RLC functions), MAC, physical layer, and RF are located in the distributed unit. PDCP and high RLC (other partial functions of RLC) are located in the central unit. Optional 4 (RLC-MAC split): - MAC, physical layer, and RF are located in the distributed unit. The PDCP and RLC are located in the central unit. Alternatively, as incorporated by reference, by Section 11 of 3GPP TR 38.801 V14.0.0 (2017-03). gNB supports the following different protocol layers: Layer 1 (L1) - Physical layer.

[0242] NR Layer 2 (L2) is divided into the following sublayers: Media Access Control (MAC), Radio Link Control (RLC), Packet Data Convergence Protocol (PDCP), and Service Data Adaptive Protocol (SDAP). For example, the physical layer provides a transport channel to the MAC sublayer; - The MAC sublayer provides a logical channel to the RLC sublayer; - The RLC sublayer provides an RLC channel to the PDCP sublayer; - The PDCP sublayer provides wireless bearers to the SDAP sublayer; - The SDAP sublayer provides 5GC QoS flow; - Comp. stands for header compression, and Segm. stands for segmentation; - The control channels include (BCCH, PCCH).

[0243] Layer 3 (L3) includes, for example, Radio Resource Control (RRC) as incorporated by reference in Section 6 of 3GPP TS38.300V16.6.0 (2021-06).

[0244] For example, a RAN (Radio Access Network) node or network node or central node or distributed node, such as a gNB, base station, gNB CU or gNB DU or a part thereof, may be implemented using a device having at least one processor and / or at least one memory (having computer-readable instructions (computer programs)) configured to support, / or provide and / or process, for example, CU and / or DU-related functions and / or features and / or at least one protocol (sub)layer of the RAN (Radio Access Network), such as Layer 2 and / or Layer 3. These may also be implemented using specific means configured to perform their respective specific tasks, such as Layer 3 means to perform Layer 3 operations and Layer 2 means to perform Layer 2 operations. A central node may implement, for example, CU-CP and / or CP-UP functions.

[0245] The gNB CU and gNB DU may be located in the same place, for example, or they may be physically separated. The gNB DU may be further divided into, for example, a part containing the processing unit and a part containing the antenna. The central unit (CU) is also called BBU / REC / RCC / C-RAN / V-RAN, O-RAN, or a part thereof. The distributed unit (DU) may also be called RRH / RRU / RE / RU, or a part thereof.

[0246] The gNB-DU supports one or more cells and can therefore function, for example, as a serving cell for a user device (UE).

[0247] User equipment (UE) may include wireless devices or mobile devices, devices having a wireless interface for interacting with a RAN (Radio Access Network), smartphones, in-vehicle devices, IoT devices, M2M devices, or others. Such UE or device may comprise at least one processor and at least one memory containing computer program code, the at least one memory and computer program code configured by the at least one processor to cause the device to perform specific operations, such as making an RRC connection to a RAN. The UE may be configured to generate messages (e.g., including a cell ID) to be transmitted wirelessly to a RAN (e.g., to reach a serving cell and communicate). The UE may generate and send and receive RRC messages containing one or more RRC PDUs (Packet Data Units).

[0248] UE can have different states (for example, according to sections 42.1 and 4.4 of 3GPP TS 38.331 V16.5.0 (2021-06) incorporated by reference).

[0249] For example, if an RRC connection is established, the UE will be in either the RRC_CONNECTED state or the RRC_INACTIVE state.

[0250] In the RRC_CONNECTED state, the UE can do the following: Save AS context; - Transfer unicast data to and from the UE; - Monitor the control channel associated with the shared data channel and determine whether data is scheduled to be sent to the data channel; - Channel quality and feedback information will be provided; - Perform adjacent cell measurements and report the measurements;

[0251] The RRC protocol includes, for example, the following main features: - RRC connection control; - Measurement configuration and reporting; - Establishment / modification / deactivation of measurement configurations (e.g., intra-frequency measurement, inter-frequency measurement, and inter-RAT measurement); - Setting up and releasing the measurement gap; - Measurement report.

[0252] Those skilled in the art will readily recognize that the steps of the various methods described above can be performed by a programmed computer. Herein, in some embodiments, program storage mechanisms, such as digital data storage media, that encode programs of machine-readable or computer-readable instructions, which perform some or all of the steps of the methods described above. Program storage devices may be, for example, digital memory, magnetic storage media such as magnetic disks and magnetic tapes, hard drives, or optically readable digital data storage media. In embodiments, a computer programmed to perform the steps of the methods described above is also intended. The term non-temporary as used herein refers to the limitations of the medium itself (i.e., tangible and not signal-based), as opposed to the limitations of data storage persistence (e.g., RAM vs. ROM).

[0253] As used in this application, the term “circuit” may refer to one, two or more, or all of the following: (a) Hardware-only circuit implementation (such as implementation of analog circuits and / or digital circuits only) and (b) A combination of hardware circuits and software, (if applicable), etc.: (i) combinations of analog and / or digital hardware circuits and software / firmware, and (ii) Software (including a digital signal processor), any part of a hardware processor having software and memory, which cooperate to enable a mobile phone or server or other device to perform various functions, and (c) Hardware circuits and / or processors, such as a microprocessor or part of a microprocessor, which require software (e.g., firmware) for operation, but the software may not be present when not required for operation.

[0254] This definition of "circuit" applies to all use of this term in this application, including in the claims. Further examples, as used in this application, the term "circuit" also includes not only a hardware circuit or processor (or more processors) or a part of a hardware circuit or processor and the accompanying software and / or firmware implementation. The term "circuit" also includes, for example, a baseband integrated circuit or processor integrated circuit for a mobile device, or a similar integrated circuit in a server, cellular network device, or other computer or network device, where applicable to the specific claim elements.

[0255] While various embodiments of the present invention have been described by reference, it should be understood that modifications to the given embodiments are possible without departing from the scope of the present invention as described in the claims.

[0256] The features described above can be used in combinations other than those explicitly stated.

[0257] While we have described the functions of specific features through citations, those functions can be performed by other features, regardless of whether they are described or not.

[0258] While features have been described with reference to specific embodiments, those features may also be present in other embodiments, whether described or not.

[0259] While the foregoing specification has endeavored to draw attention to features of the present invention that are considered particularly important, it should be understood that the applicant seeks protection with respect to any patentable features or combinations of features described herein and / or shown in the drawings, whether or not they are particularly emphasized. [Explanation of Symbols]

[0260] 1. UE (MN1+SN1) in dual connection 2. Measurement Report 3. Handover Request 4 SN addition request 5 SN Additional Response 6 SN addition request 7 SN Additional Response 8 HO request ACK 9 SN modification request 10 SN modified ACK 11 RRC Reconfiguration 12 RRC reconfiguration completed

Claims

1. A user device for a communication network comprising at least one processor and at least one memory for storing instructions, When the instruction is executed by the at least one processor, it will result in at least the user device receiving the instruction. The network node receives a configuration message. The configuration message provides an indication of an activity performed by the user device, along with conditions associated with the activity, the conditions indicating whether the activity is active or inactive, performed by the user device connected to the network, and no measurement activity is being performed. User equipment.

2. The user device according to claim 1, wherein the configuration message comprises a measurement configuration message, and the activity comprises a measurement activity.

3. The user device according to claim 2, wherein the measurement configuration message indicates whether the measurement activity is in the active state or the inactive state by default.

4. The user device according to claim 2 or 3, wherein the condition indicates when the measurement activity switches between the active state and the inactive state.

5. The user device according to claim 2, wherein the measurement configuration message provides indications of a plurality of measurement activities performed by the user device connected to the network node, along with conditions related to the measurement activities.

6. The user device according to claim 5, wherein the plurality of measurement activities comprises a first measurement activity having a first condition and a second measurement activity having a second condition, and the evaluation of the second condition is conditional on the result of the first condition.

7. The user device according to claim 6, wherein the second measurement activity has a third condition, and the evaluation of the second condition is conditional on the result of the third condition.

8. The user device according to claim 6, wherein the first measurement activity includes measuring the radio state of at least one serving cell, the second measurement activity includes measuring the radio state of at least one target cell, the first measurement activity is in the active state by default, the second measurement activity is in the inactive state by default, and the second measurement activity is switched to the active state when the radio state measured by the first measurement activity is detected.

9. The user device according to claim 6, wherein the first measurement activity comprises monitoring the radio link of at least a serving PSCell, and the second measurement activity comprises measuring the radio state of at least one target PSCell, and the second measurement activity is switched to the active state when a radio link failure, T310 activation or beam failure related to the serving PSCell is detected.

10. The aforementioned instruction is given to the user device at least: When a wireless link failure, T310 activation, or beam failure related to the serving PSCell is detected, the second measurement activity is activated. The user device according to claim 9.

11. The user device is configured to have a dual connection between at least the network node comprising a source master node and a first secondary node, the configuration message comprises a handover request acknowledgment received from the source master node, the handover request acknowledgment indicates a first activity that applies the configuration for connection between the target master node and the first secondary node when no activated first condition related to a serving PSCell is detected, the handover request acknowledgment indicates a second activity that applies the configuration for connection between the target master node and the second secondary node when a deactivated second condition is activated, the deactivated second condition is activated when the first condition is false. The user device according to claim 1.

12. The aforementioned instruction is given to the user device at least: When a wireless link failure, T310 activation, or beam failure related to the serving PSCell is detected, the second condition is activated. The user device according to claim 11.

13. The first measurement activity includes measuring the radio state of the current serving cell, the second measurement activity includes measuring the radio state of the target serving cell, the first measurement activity is in the inactive state by default, the second measurement activity is in the active state by default, and when a cell change is performed from the current serving cell to the target serving cell, the second measurement activity is switched to the inactive state and the first measurement activity is switched to the active state. The user device according to claim 6.

14. The aforementioned instruction is given to the user device at least: When a cell change is performed from the current serving cell to the target serving cell, the first measurement activity is activated and the second measurement activity is deactivated. The user device according to claim 13.

15. The user device is configured to have a dual connection to at least the network node comprising a source master node and a source secondary node, the configuration message comprises an RRC reconfiguration message received from the source master node, the RRC reconfiguration message indicates a first activity of measuring the PSCell of the source secondary node under a first condition in which the measurement is deactivated when the user device is connected to the source master node, and the RRC reconfiguration message indicates a second activity of measuring the PSCell of the target secondary node under a second condition in which the measurement is activated when the user device is not connected to the target master node. The user device according to claim 1.

16. The user device according to claim 15, configured to activate a first activity measuring the PSCell of the source secondary node and deactivate a second activity measuring the PSCell of the target secondary node in response to performing a conditional primary serving cell change toward the target secondary node.

17. The user device according to claim 15, wherein the measurement is deactivated by deactivating the associated measurement_ID and activated by activating the associated measurement_ID.

18. The user device according to claim 6, wherein the first measurement activity includes measuring the radio state of the current serving cell, the second measurement activity includes measuring the radio state of a target serving cell, the first measurement activity is in the active state by default, the second measurement activity is in the inactive state by default, and the second measurement activity is switched to the active state when a degradation exceeding a threshold of the radio state measured by the first measurement activity is detected.

19. The user device according to claim 18, wherein the first measurement activity includes measuring the radio state of at least a serving PCell, the second measurement activity includes measuring the radio state of at least a PSCell, and the measurement configuration message provides an indication of a further measurement activity including measuring the radio state of at least a serving PCell, and further conditions to be met before switching the second measurement activity to the active state.

20. The user device according to claim 19, wherein the further condition includes measuring a received signal power that is offset by an amount lower than the power measured by the first measurement activity which would result in a conditional handover.

21. The aforementioned instruction is given to the user device at least: The second measurement activity is activated when the received signal power is lower by the offset amount than the power measured by the first measurement activity which leads to a conditional handover. User device according to claim 20.

22. The user device is configured to have a dual connection between at least the network node having a source master node and a first secondary node, the configuration message includes a handover request acknowledgment received from the source master node, the handover request acknowledgment indicates a first activity which applies configuration for connection with the target master node when an activated first condition of measured radio conditions requests a conditional handover, a deactivated second condition which measures the radio conditions of the PSCell, and an activated third condition which determines when the measured radio conditions are below a predetermined amount below the condition which requests a conditional handover, the second condition which is activated when the third condition is true. The user device according to claim 1.

23. The aforementioned instruction is given to the user device at least: When it is detected that the third condition is true, the second condition is activated. The user device according to claim 22.

24. The aforementioned instruction is given to the user device at least: When it is detected that the first condition is true, the PSCell addition related to the second condition is determined. The user device according to claim 22.

25. The aforementioned instruction is given to the user device at least: Measurement that does not meet the conditions - deactivate the ID. The user device according to claim 1.

26. The aforementioned instruction is given to the user device at least: Active Measurement - Deactivates measurement objects that are not linked to an ID. The user device according to claim 1.

27. The aforementioned instruction is given to the user device at least: Deactivate a measurement gap or synchronization signal block-based wireless resource management measurement timing configuration window that is not related to the active measurement object. The user device according to claim 1.

28. It is a method, A method comprising the step of receiving a configuration message from a network node, wherein the configuration message provides an indication of an activity performed by a user device, along with conditions associated with the activity, the conditions indicating whether the activity is in an active state performed by the user device connected to the network, or in an inactive state in which no measurement activity is performed.

29. A non-temporary computer-readable medium on which program instructions are stored, The aforementioned program instruction is, A non-temporary computer-readable medium for performing at least the steps of receiving a configuration message from a network node, the configuration message providing an indication of an activity performed by a user device, along with conditions associated with the activity, the conditions indicating whether the activity is in an active state performed by the user device connected to the network, or in an inactive state in which no measurement activity is performed.

30. A network node of a communication network comprising at least one processor and at least one memory for storing instructions, When the instruction is executed by the at least one processor, it will cause at least the network node to: The user device sends a configuration message, which provides an indication of an activity performed by the user device, along with conditions associated with the activity, the conditions indicating whether the activity is active when performed by the user device connected to the network, or inactive when no measurement activity is performed. Network node.

31. It is a method, A method comprising the step of sending a configuration message to a user device, the configuration message providing an indication of an activity to be performed by the user device, along with a condition associated with the activity, the condition indicating whether the activity is in an active state performed by the user device connected to a network or in an inactive state in which no measurement activity is performed.

32. A non-temporary computer-readable medium on which program instructions are stored, A non-temporary computer-readable medium, wherein the program instruction is for causing a user device to send a configuration message, the configuration message providing an indication of an activity to be performed by the user device, along with conditions associated with the activity, the conditions indicating whether the activity is in an active state performed by the user device connected to a network or in an inactive state in which no measurement activity is performed.

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