Abstract: Embodiments of the present application relate to methods and apparatuses for deactivating and activating a secondary cell group (SCG) in a multi-radio dual connectivity (MR-DC) scenario under a 3rd Generation Partnership Project (3GPP) 5G New Radio (NR) system or the like. According to an embodiment of the present application, a method can include: in response to determining to activate a SCG, transmitting state information for one or more secondary cells (SCells), wherein the one or more SCells are associated with the SCG; and in response to determining to deactivate the SCG, transmitting the state information for the one or more SCells and transmitting configuration information regarding a behaviour of a user equipment (UE).

Abstract: Embodiments of the present disclosure relate to methods and apparatuses for coverage extension and wireless communication. According to some embodiments of the disclosure, a method may include: receiving from a base station (BS) a message comprising an indication that a drone-based relay or vehicle-based relay is supported by the BS, wherein the mobile terminal is allowed to serve as a relay node between the BS and a user equipment (UE); and in response to receiving the indication indicating that a drone-based relay or vehicle-based relay is supported by the BS, performing a random access procedure with the BS. In addition, the mobile terminal may report the assistant information, e.g., the remaining power information, to the BS.

Abstract: Apparatuses, methods, and systems are disclosed for paging occasion monitoring. One method (700) includes determining (702), at a remote user equipment, at least one factor influencing an ability of the remote user equipment to monitor paging occasions that are for the remote user equipment, wherein the at least one factor comprises a radio condition, a battery usage, a configuration, a monitored parameter, or a combination thereof. The method (700) includes determining (704) whether the remote user equipment will monitor the paging occasions that are for the remote user equipment based on the factor influencing paging occasion monitoring. The method (700) includes, in response to determining that the remote user equipment will not monitor the paging occasions, transmitting (706) a request to a network device, a relay user equipment, or a combination thereof for the relay user equipment to monitor the paging occasions that are for the remote user equipment.

Abstract: Apparatuses, methods, and systems are disclosed for efficient cross-carrier scheduling of multiple slots. One apparatus includes a transceiver and a processor coupled with the transceiver, the processor configured to cause the apparatus to transmit a first control signal to a remote unit, the first control signal indicating a maximum number of HARQ processes, and to transmit a second control signal to the remote unit, where the second control signal is transmitted on a first carrier and where the second control signal schedules a first number of slots on a second carrier. The processor aggregates every two or more of the scheduled first number of slots to a single HARQ process in response to the first number being larger than the maximum number of HARQ processes.

Abstract: Methods and apparatus for sidelink communication are disclosed. One method of a Tx/Rx UE comprises reserving resources for one or more sidelink (SL) data transmissions and resources for decoding result feedbacks corresponding to the one or more SL data transmissions; transmitting sidelink control information (SCI) to a second apparatus, which indicates the resources for the SL data transmissions; and receiving at least one of the decoding result feedback and a pre-emption indicator. Another method of a Tx/Rx UE comprises receiving SCI, which indicates resources for the SL data transmissions, from a first apparatus; and transmitting at least one of the decoding result feedback and a pre-emption indicator.

Abstract: A method for performing random access includes: performing a 2-step RA procedure with a BS (S401); receiving a fallback RAR from BS (S404); performing a 4-step RA procedure with BS (S405); and associating a 2-step RA information of the 2-step RA procedure with a 4-step RA information of the 4-step RA procedure (S407).

Abstract: Embodiments of the present disclosure relate to methods and apparatuses for handover and reestablishment in a wireless communication system. According to some embodiments of the disclosure, a method may include: receiving, at a user equipment (UE), a radio resource control (RRC) reconfiguration message including a path switch indication and a list of candidate relays; selecting a target relay from the list of candidate relays; and establishing a PC5 RRC connection with the target relay. Furthermore, the UE may select another target relay for path switch if a path switch failure associated with the first selected target relay happens.

Abstract: The present application relates to a method and an apparatus for performing cell measurement process. One embodiment of the present disclosure provides a method performed by a method performed by a User Equipment (UE) in a wireless network with a variable coverage, comprising: performing a cell measurement process of one or more cells of the wireless network; and in response to a variation in the coverage of the wireless network in relation to the UE, disabling the cell measurement process of the one or more cells of the wireless network.

Abstract: Embodiments of the present disclosure relate to methods and apparatuses for path switch in a wireless communication system. According to some embodiments of the disclosure, a method may include: receiving, at a UE, an RRC reconfiguration message from a BS via a source Uu link, wherein the RRC reconfiguration message includes a path switch indication indicating a switch to a target relay; and in response to the RRC reconfiguration message, transmitting an RRC reconfiguration complete message to the BS via the target relay, initiating a reestablishment procedure over a Uu interface, or falling back to the source Uu link. The method may further include: in response to the RRC reconfiguration message, detaching or maintain the source Uu link.

Abstract: Methods and apparatuses for recovering from beam failure are disclosed. A method of recovering from beam failure, comprising: sending a beam failure recovery request message including information regarding beam failure recovery and information regarding a new candidate beam via a working beam of a first cell; monitoring a response via the new candidate beam of a second cell; and receiving the response via the new candidate beam from the second cell.

Abstract: Embodiments of the present disclosure relate to Multicast and Broadcast Service (MBS) services. The method includes receiving configuration information from a network device, the configuration information relating to a multicast and broadcast service (MBS) service provided in one or more serving cells. The method also includes receiving downlink control information from the one or more serving cells in which the MBS service is provided. The method further includes receiving the MBS service that is provided in the one or more serving cells based on the downlink control information.

Abstract: Embodiments of the present disclosure relate to methods, apparatuses, and media for handling Listen Before Talk (LBT) failure for sidelink transmission. A method performed by a terminal device comprises in response to at least one LBT failure during a sidelink transmission procedure, determining one or more resources for transmitting data that has failed to be transmitted from the terminal device due to the at least one LBT failure and transmitting the data from the terminal device via the one or more resources as determined. In the present disclosure, a mechanism for data retransmission cause by the LBT failure in the sidelink commutation is specified, which is benefit for the sidelink to co-exist with other wireless technologies in NR.

Abstract: Data transmitting/receiving apparatuses and methods and a communication system. The data transmitting method includes: in an inactive state, determining whether to maintain in the inactive state or enter an active state according to indication information of a network device or one or more parameters configured by the network device; and in the inactive state, transmitting data and/or a request message for entering the active state to the network device. Hence, data transmission may be performed in an appropriate state, without needing to restart connection at each time of data transmission; saved resources may be used for the data transmission, and time needed in performing identical data transmission may be reduced.

Abstract: Embodiments of the present application are directed to a method and apparatus for configuring timers and performing data transmission in a SDT procedure. In an embodiment of the present application, the method includes: receiving configured grant (CG) resource configuration information on a plurality of CG resources from a base station (BS); and determining a value of timing alignment (TA) timer based on a period of one selected CG resource from the plurality of CG resources or based on a value configured by the BS; and transmitting data in at least one of the plurality of CG resources if the TA timer is running and the at least one of the plurality of CG resources is valid.

Abstract: Embodiments of the present application are related to a method and apparatus for data transmission. An exemplary method of the present application includes: generating a first physical data unit (PDU) based on first key information from a wireless network while a terminal device is in a non-connected state with the wireless network; receiving a second key information from the wireless network; generating a second PDU from the generated first PDU based on the second key information; and transmitting the generated second PDU within the wireless network.

Abstract: Embodiments of the present application relate to methods and apparatuses for multicast and broadcast services (MBS). An exemplary method performed by a node of a wireless network to provide a multicast and broadcast service (MBS) associated with a user equipment (UE) of the wireless network may include: determining whether to activate or deactivate a point-to-point (PTP) mode to provide the MBS to the UE; and transmitting a data transmission indication via a user plane protocol of a network interface in the wireless network to activate or deactivate the PTP mode. Embodiments of the present application can support more efficient dynamic switching between PTP mode and point-to-multipoint (PTM) mode for MBS and/or distinguish new transmission data and retransmission data for MBS.

Abstract: Embodiments of the present application relate to methods and apparatuses for a configuration replace operation in a conditional primary cell of a secondary cell group (PSCell) addition and change (CPAC) procedure under a 3rd Generation Partnership Project (3GPP) 5G system or the like. According to an embodiment of the present application, a method performed by a radio access network (RAN) node can comprises: receiving configuration information relating to a CPAC procedure; and in response to the configuration information relating to the CPAC procedure being modified, communicating the modified configuration information with another RAN node via a Xn interface or a X2 interface.

Abstract: Embodiments of the present application relate to methods and apparatuses of an enhanced mechanism for a deactivated or dormant secondary node (SN) in a multi-radio dual connectivity (MR-DC) scenario under a 3rd Generation Partnership Project (3GPP) 5G New Radio (NR) system or the like. According to an embodiment of the present application, a method may be performed by a user equipment (UE) and can include: receiving configuration information from a serving cell, wherein the configuration information indicates to the UE an activated or a deactivated state of a secondary node (SN); and in response to receiving the configuration information indicating the activated state of the SN of the UE, receiving a deactivation indication or determining an expiry of a timer associated with deactivating the SN of the UE.

Abstract: Embodiments of the present disclosure relate to inter-user equipment coordination for sidelink discontinuous reception (DRX) UE. The method includes transmitting, to a second terminal device, a configuration information of discontinuous reception (DRX) associated with at least one of the first terminal device or a third terminal device. The method also includes receiving, from the second terminal device, a resource information indicating a first set of resources allocated for a sidelink communication between the first terminal device and the third terminal device. The method further includes determining a second set of resources for performing the sidelink communication based on the first set of resources and the configuration information.

Abstract: Embodiments of the present application relate to methods and apparatuses for a beam failure detection and recovery procedure in a deactivated secondary node (SN) case in a multi-radio dual connectivity (MR-DC) scenario under a 3rd Generation Partnership Project (3GPP) 5G system or the like. According to an embodiment of the present application, a method can include: receiving configuration information relating to at least one of a beam failure detection (BFD) procedure and a beam failure recovery (BFR) procedure; and receiving a deactivation indication associated with a SN of the UE, or determining an expiry of a timer associated with deactivating the SN of the UE, wherein the deactivation indication is included in at least one of: a radio resource control (RRC) message; and a deactivation medium access control (MAC) control element (CE).