Abstract: A method performed by a user equipment, UE, the method comprising: receiving (201, 701) a Layer 1/Layer 2-triggered mobility, LTM, configuration of one or more LTM candidate target cells, wherein the one or more LTM candidate target cells comprise a first target cell; receiving (202, 702) a first command to execute an LTM cell switch to the first target cell; obtaining (203, 703) a first Layer 2, L2, reset indication comprising an indication of whether an L2 reset should be performed during the LTM cell switch to the first target cell; and executing (204, 704) the LTM cell switch to the first target cell according to the first command.

Abstract: Embodiments herein relate to, for example, a method performed by a UE for communicating in a wireless communication network, wherein the UE is configured to be connected to a first cell of an MSG and a second cell of an SCG. The UE receives an indication to perform transition to a first operation state from a second operation state; and upon transitioning to the first operation state, monitors for one or more temporary reference signals of the SCG.

Abstract: Embodiments include methods for a user equipment (UE) to advertise UE capabilities to a network node in a radio access network (RAN). Such methods transmitting to the network node FeatureSet information that includes one or more ExtensionFeatureLists, with each ExtensionFeatureList indicating the UE's support for one or more extension features. Such methods include receiving from the network node a configuration that includes the following: identification of one or more frequency bands to be used for communication by the UE; and for each identified frequency band, configuration of one or more features indicated as supported by the UE in the one or more ExtensionFeatureLists. Other embodiments include complementary methods for a network node, as well as UEs and network nodes configured to perform such methods.

Abstract: Embodiments include methods for a user equipment (UE) configured for dual connectivity (DC) with a wireless network via a first node arranged to provide a first cell group and a second node arranged to provide a second cell group. Such methods include receiving a first medium access control (MAC) message from the first node by a first UE MAC entity associated with the first cell group, and determining that the first MAC message includes an encapsulated second MAC message for a second UE MAC entity associated with the second cell group, which is deactivated. Such methods also include performing one or more operations related to the second cell group based on the second MAC message. Other embodiments include complementary methods for the first node and the second node, as well as UE and network node apparatus configured to perform such methods.

Abstract: In a method for adapting a mobile network, a terminal is connected to a first access node of the mobile network via a first connection and to a second access node via a second connection. The first access node controls a data transmission for the terminal and the second access node assists in the data transmission for the terminal. The method comprises determining whether a quality of at least one of the first connection and the second connection is degraded, acquiring quality degradation information about the degradation of the quality of at least one of the first connection and the second connection based on the step of determining, and adapting the mobile network based on the step of acquiring.

Abstract: Embodiments include methods for a user equipment (UE) configured to communicate with a radio access network (RAN) via a master cell group (MCG) and a secondary cell group (SCG). Such methods include transmitting, to a RAN node configured to provide the MCG, a first message indicating an initial beam failure detected in the SCG based on a first beam failure detection (BFD) configuration and while the SCG is deactivated. Such methods include detecting one or more subsequent beam failures in the deactivated SCG after the initial beam failure and selectively transmitting to the RAN respective second messages indicating the one or more subsequent beam failures. Each second message is selectively transmitted based on one or more of the following: whether the UE has received a second BFD configuration from the RAN node configured to provide the MCG, and whether a message transmission timer is running, is stopped, or has expired.

Abstract: Embodiments include methods for a user equipment (UE) configured to communicate with a wireless network via a master cell group (MCG) and a secondary cell group (SCG). Such methods include entering a reduced-energy mode for the SCG responsive to receiving a first command via the MCG or the SCG; and while in the reduced-energy mode for the SCG and in a activated mode for the MCG, performing beam failure detection (BFD) for the SCG and refraining from performing one or more beam management operations for the SCG. In some embodiments, the UE can perform various operations after detecting a beam failure in the SCG while in the reduced-energy mode for the SCG. Other embodiments include complementary methods for network nodes configured to provide the MCG or the SCG, and UEs and network nodes configured to perform such methods.

Abstract: According to some embodiments, a method is performed by a wireless device for timing advance (TA) management between the wireless device and at least one target candidate cell for layer one (L1)/layer two (L2) inter-cell mobility. The wireless device is operating in a serving cell different from the target candidate cell. The method comprises: receiving an uplink configuration for a target candidate cell; transmitting an uplink message to the target candidate cell based on the uplink configuration; and receiving a TA value associated with the target candidate cell. The TA value is received in a message from the serving cell.

Abstract: In an example, a method performed by a user equipment (UE) for beam failure detection (BFD) monitoring is provided. The method comprises receiving, from a network node, a configuration identifying one or more Layer 1/Layer 2 (L1/L2) inter-cell mobility candidate target cells; and performing BFD monitoring on a current serving cell of the UE. The method also comprises determining BFD on the current serving cell, and performing BFR on a beam on the current serving cell or a beam on one of the one or more candidate target cells, or executing L1/L2 inter-cell mobility to a beam on one of the one or more candidate target cells.

Abstract: A method performed by a first node. The method is for handling a message to a third node. The message comprises content from at least a first second node of one or more second nodes. The first node handles a radio communication with the third node in coordination with the one or more second nodes. The first node sends the message to the third node, segmented or not segmented. Whether the message is sent segmented or not segmented is based on: i) whether or not a size of the message exceeds a size limit, ii) whether or not the third node supports segmentation of messages, iii) whether or not the first node supports segmentation of messages, and iv) whether or not at least the first second node of the one or more second nodes supports segmentation of messages.

Abstract: A communication device can be configured to operate in dual connectivity (DC) with a first node via a first cell group and at least one second node via a second cell group. The communication device can synchronize with the second cell group while the second cell group is in a power saving mode of operation. The communication device can determine that the second cell group is switching to an activated mode of operation. Responsive to determining that the second cell group is switching to the activated mode of operation, the communication device can transmit a message to the second node via the second cell group at a next available transmission occasion.

Abstract: Embodiments include methods for a user equipment (UE) configured to communicate with a wireless network via a master cell group (MCG) and a secondary cell group (SCG). Such methods include entering a reduced-energy mode for the SCG responsive to receiving a first command via the MCG or the SCG; and while in the reduced-energy mode for the SCG and in a activated mode for the MCG, performing beam failure detection (BFD) for the SCG and refraining from performing one or more beam management operations for the SCG. In some embodiments, the UE can perform various operations after detecting a beam failure in the SCG while in the reduced-energy mode for the SCG. Other embodiments include complementary methods for network nodes configured to provide the MCG or the SCG, and UEs and network nodes configured to perform such methods.

Abstract: Embodiments described herein relate to methods and apparatuses for signalling band combinations allowed to be used by a second base station. A method performed by a first base station, wherein the first base station is acting as a Master Node in Dual Connectivity, wherein there exists a first band combination list and a second band combination list, and wherein the first band combination list and the second band combination list each contain supported band combinations, comprises: signalling to a second base station to indicate band combinations allowed to be used by the second base station, wherein the second base station is acting as a Secondary Node in Dual Connectivity, wherein the indicated band combinations comprise band combinations from the first band combination list and/or the second band combination list.

Abstract: Embodiments herein relate to, for example, a method performed by a UE (10) for communicating in a wireless communication network, wherein the UE (10) is configured to be connected to a first cell of an MSG and a second cell of an SCG. The UE (10) receives an indication to perform transition to a first operation state from a second operation state; and upon transitioning to the first operation state, monitors for one or more temporary reference signals of the SCG.

Abstract: Embodiments include methods for a user equipment (UE) configured to communicate with a radio access network (RAN) via a master cell group (MCG) and a secondary cell group (SCG). Such methods include, while the SCG is deactivated, performing beam failure detection (BFD) for at least one cell in the SCG, according to a first BFD configuration. Such methods include, in response to detecting an initial beam failure in the deactivated SCG, transmitting a first message indicating the initial beam failure to a RAN node configured to provide the MCG; and in response to detecting one or more subsequent beam failures in the deactivated SCG, refraining from transmitting to the RAN any messages indicating the one or more subsequent beam failures (e.g., until receiving another BFD configuration). Other embodiments include complementary methods for a RAN node, as well as UEs and RAN nodes configured to perform such methods.

Abstract: Methods and apparatus for a user equipment, UE, configured for dual connectivity, DC, with a wireless network via a first node arranged to provide a first cell group and a second node arranged to provide a second cell group. Such methods and apparatuses include receiving (1620) a first medium access control, MAC, message from the first node by a first UE MAC entity associated with the first cell group, and determining (1630) that the first MAC message includes an encapsulated second MAC message for a second UE MAC entity associated with the second cell group, which is deactivated. Such methods and apparatuses also include performing (1640) one or more operations related to the second cell group based on the second MAC message.

Abstract: In a method for adapting a mobile network, a terminal is connected to a first access node of the mobile network via a first connection and to a second access node via a second connection. The first access node controls a data transmission for the terminal and the second access node assists in the data transmission for the terminal. The method comprises determining whether a quality of at least one of the first connection and the second connection is degraded, acquiring quality degradation information about the degradation of the quality of at least one of the first connection and the second connection based on the step of determining, and adapting the mobile network based on the step of acquiring.

Abstract: Embodiments include methods for a user equipment (UE) configured to communicate with a radio access network (RAN) node comprising a central unit (CU) and a distributed unit (DU) that provides a serving cell for the UE. Such methods include receiving from the DU a lower layer signalling message indicating that the UE should perform L1/L2-based inter-cell mobility to a first candidate cell provided by a candidate DU. The lower layer signaling message includes an indicator or identity of the first candidate cell, and an indication of a first TCI state to be used by the UE for communicating with the first candidate cell. Such methods include performing) an L1/L2 mobility procedure towards the first candidate cell and communicating in the first candidate cell based on the first TCI state. Other embodiments include complementary methods for serving and candidate DUs, as well as UEs and DUs configured to perform such methods.

Abstract: Embodiments include methods for a user equipment (UE) configured to communicate with a radio access network (RAN) via a master cell group (MCG) and a secondary cell group (SCG). Such methods include, while the SCG is deactivated, performing beam failure detection (BFD) for at least one cell in the SCG, according to a first BFD configuration. Such methods include, in response to detecting an initial beam failure in the deactivated SCG, transmitting a first message indicating the initial beam failure to a RAN node configured to provide the MCG; and in response to detecting one or more subsequent beam failures in the deactivated SCG, refraining from transmitting to the RAN any messages indicating the one or more subsequent beam failures (e.g., until receiving another BFD configuration). Other embodiments include complementary methods for a RAN node, as well as UEs and RAN nodes configured to perform such methods.

Abstract: Embodiments include methods for a UE to perform mobility operations in a wireless network based on conditions related to data traffic. Such methods include receiving, from a network node, one or more conditional reconfigurations. Each includes a reconfiguration message associated with a candidate target cell and one or more execution conditions that need to be fulfilled to apply the reconfiguration message when performing a mobility operation, including at least one first execution condition related to UE data traffic and/or to one or more UE applications. Such methods include monitoring for the execution conditions in the conditional reconfigurations and based on detecting fulfillment of one or more execution conditions in a particular conditional measurement configuration, performing a mobility operation towards the candidate target cell associated with the reconfiguration message in the particular conditional measurement configuration.