Abstract: A method in one or more nodes of a radio access network (RAN), for managing multicast and/or broadcast services (MBS) communications, includes transmitting to a user device an MBS radio bearer (MRB) configuration associated with an MRB, implementing a shared packet data convergence protocol (PDCP) entity to transmit first MB S packets to the user device via the MRB and according to the MRB configuration and a first lower layer configuration, and after transmitting the first MB S packets, implementing the shared PDCP entity to transmit second MB S packets to the user device via the MRB and according to a second lower layer configuration and the MRB configuration. The first and second lower layer configurations being different ones of a multicast configuration and a unicast configuration.

Abstract: To provide Single Radio Voice Call Continuity (SRVCC) to a session of a packet-data service, a first base station communicates messages associated with the session between a UE and a packet-data network, using a first RAT (902); determines a capability of the UE with respect to the second RAT (906); and transmits, to a second base station, handover preparation information for the UE, including causing the second base station to not apply the capability of the UE with respect to UTRA (910).

Abstract: A first base station providing to the UE configuration data related to a second base station and at least one condition for connecting to the second base station in order to operate in dual connectivity with the first base station and the second base station (1802). The base station receiving from the UE a first indication that the UE has conditionally applied the configuration data (1804). Subsequently to receiving the first indication, the base station receives a second indication that the at least one condition is satisfied (1806).

Abstract: A user equipment (UE) in communication with a radio access network (RAN) in accordance with a first configuration (i) receives (1102) from the RAN, a conditional configuration for application in a conditional procedure when a corresponding condition is satisfied; (ii) subsequently to receiving the conditional configuration, applies (1104) a second configuration received from the RAN; (iii) detects (1106), after applying the second configuration, a failure to execute the conditional procedure; and (iv) in response to the detecting, continues (1108) to apply the second configuration or notifies the RAN of the UE reverting back to the first configuration.

Abstract: A method in a user device that supports a plurality of message authentication code (MAC) lengths for integrity protection of wireless communications includes receiving, from a base station, a first message including an information element (1002), determining, based on the information element, that a first MAC length of the plurality of MAC lengths is to be used for integrity protection (1004) and, thereafter, generating a second message including a MAC having the first MAC length (1006). The method also includes transmitting the second message to the base station (1008).

Abstract: A user device (UE) for scheduling an uplink transmission assignment with a base station that communicates with the user device via a shared carrier, receives, from the base station, a configuration that indicates (i) a first channel access procedure for the user device to perform prior to transmitting an uplink transmission and (ii) at least one occasion at which the user device is to transmit the uplink transmission (1602); receives, from the base station via the shared carrier, a signal indicating at least a portion of a transmission time period during which the shared carrier is available to the base station (1604); and performs the first channel access procedure or a second channel access procedure before transmitting the uplink transmission based at least in part on whether the occasion is within the transmission time period (1606).

Abstract: A UE, communicating in dual connectivity (DC) with a radio access network (RAN) via a master node (MN) and a secondary node (SN), can implement a method for managing a conditional configuration during deactivation of a secondary cell group (SCG). The method can be implemented by processing hardware and includes receiving (1102), from the RAN, the conditional configuration related to a DC procedure and a condition to be satisfied before the UE applies the conditional configuration. The method also includes deactivating (1104) the SCG at the UE and processing (1106) the conditional configuration in view of the deactivating, including by preventing the UE from applying the conditional configuration.

Abstract: To control transmissions to a user equipment (UE) over a downlink (DL) multiple-input, multiple-output (MIMO) channel, a base station determining that the UE is configured to support N DL MIMO layers and transmit reference signals over L antenna chains (852). In response to determining that L<N (870), the base station generates channel information for the DL MIMO channel using (i) L uplink reference signals, each transmitted by the UE over a respective one of the L antenna chains (880), and (ii) one or more additional transmissions received from the UE (882). The base station transmits data streams over the DL MIMO channel in accordance with the generated channel information.

Abstract: A source donor, for managing a connection between a user equipment (UE) and a radio access network (RAN) via an integrated access backhaul (IAB)-node, (i) determines (2002), when the IAB-node communicates with the RAN via the source donor, that the IAB-node is to migrate from the source donor to establish a new radio connection with the RAN, and (ii) subsequently to the determining and prior to the UE and the IAB-node establishing respective new connections with the RAN, facilitates (2004) exchange of data between the UE and a core network (CN) via the source donor and the target donor.

Abstract: To perform early data transmission with a radio access network (RAN), a UE transmits, by processing hardware and when a radio connection between the UE and the RAN is inactive, an initial data packet to the RAN (1306). The UE transmits, by the processing hardware subsequent to transmitting the initial data packet and while the radio connection remains inactive, a subsequent data packet to the RAN (1308).

Abstract: A method in a base station for determining a capability of a user equipment (UE) includes receiving (1502) a payload transmission during a random access procedure with the UE. The method also includes determining (1504), using a logical channel identity included in the payload transmission, whether the UE is a reduced-capability device or a normal-capability device.

Abstract: A base station for providing a multicast and/or broadcast service (MBS), (i) transmits (1202) a protocol data unit (PDU) of an MBS data packet associated with the MBS, using a mechanism for automatic re-transmission of undelivered PDUs, and (ii) receives (1204), on a physical uplink channel and from at least one of the plurality of UEs, an indication of whether a UE successfully received the PDU of the MBS data packet. A user equipment (UE) for receiving MBS (i) attempts (1302) to receive, from the base station, a PDU of an MBS data packet associated with the MBS, and (ii) transmits (1304), on a physical uplink channel and to the base station, an indication of whether the UE successfully received the PDU of the MBS data packet, in accordance with a mechanism for automatic re-transmission of undelivered PDUs.

Abstract: A network node operates as a master node, MN, for a user equipment, UE, communicating in dual connectivity, DC, with the MN and a secondary node, SN. To manage deactivation of a secondary cell group, SCG, the network node determines that the SCG is deactivated (2202), determines, when the SCG is deactivated, that a radio connection between the MN and the UE should be suspended (2206), and suspends the radio connection (2208).

Abstract: A network node, operating as a secondary node (SN) for a user equipment (UE) communicating in dual connectivity (DC) with a master node (MN) and the SN, can implement a method for managing deactivation and activation of a secondary cell group (SCG). The method includes detecting (2302) a first indication that an activation status of the SCG is to change, and changing (2304) the activation status at the SN in response to the detecting. Further, the method includes reactivating or releasing (2306) the SCG in response to detecting a second indication related to the SCG.

Abstract: To process early data transmissions from a UE, a distributed unit (DU) of a base station transmits, by processing hardware, a preconfigured uplink resource (PUR) configuration to the UE in a release message that instructs the UE to transition to an inactive state (610). While the UE is in the inactive state, the DU receives, by the processing hardware from the UE, a data packet via a PUR resource configured in the PUR configuration (612).

Abstract: A method in a RAN is for providing, to a user equipment (UE), a conditional configuration which the UE is to apply when a network-specified condition is satisfied. The method includes determining that a suspended radio connection between the UE and the RAN is to be resumed, the radio connection associated with N cells (1302); obtaining the conditional configuration related to a candidate secondary cell to provide the UE with connectivity over multiple cells (1304); and providing the conditional configuration to the UE prior to the UE resuming the radio connection over at least N cells (1306).

Abstract: A source donor supports inter-donor migration of an integrated access backhaul (IAB) node from the source donor to a target donor, where the source donor and the target donor corresponding to respective nodes of a radio access network (RAN), and when a user equipment (UE) is in communication with the RAN via the IAB-node. The source donor transmits, to the target donor, a handover request message related to the IAB-node; receives, from the target donor, a handover request acknowledge message including an IAB-node configuration related to the inter-donor migration of the IAB-node; provides the IAB-node configuration to the IAB-node; and transmits downlink data for the UE to the target donor, for forwarding to the UE via the IAB-node.

Abstract: A user equipment (UE), for managing information related to sidelink communications, when the UE has a radio connection with a radio access network (RAN), (i) transmits (1802), to the RAN, sidelink information for generating, at the RAN, a sidelink configuration for the UE, (ii) determines (1804), subsequently to the transmitting, that the radio connection with the RAN is to be modified, and (iii) processes (1806) the sidelink information in response to the determination. A RAN, for managing information related to sidelink communications, when a UE has a radio connection with the RAN, (i) receives (1902), from the UE, sidelink information, (ii) generates (1904), using the sidelink information, a sidelink configuration for the UE, (iii) determines (1906) that the radio connection with the UE is to be modified, and processes (1908) the sidelink information in response to the determination.

Abstract: A method in a base station for managing communication of multicast and/or broadcast services (MBS) includes causing (1402) establishment of a session for transmitting MBS data packets from a core network (CN) to a user equipment (UE). The method also includes transmitting (1404) configuration parameters associated with the session to the UE. Further, the method includes transmitting (1406) MBS data packets to the UE in accordance with the configuration parameters.

Abstract: A method in a UE communicating with a RAN includes receiving (312A), from the RAN, a conditional configuration and a corresponding condition for a conditional procedure and, after receiving the conditional configuration and the corresponding condition, sending (316 A) UE information to the RAN. The UE information includes information indicative of a preference or circumstance of the UE. The method also includes, after sending the UE information to the RAN, determining (334A) that the corresponding condition is satisfied and, after determining that the corresponding condition is satisfied, again sending (320A) the UE information to the RAN.