Abstract:
A method and apparatus for transmitting an indication in a wireless communication system is provided. A source donor eNodeB (DeNB) transmits a first handover request message for a mobile relay node, to a target DeNB, and transmits a second handover request message for user equipments (UEs) attached to the mobile relay node, to a target eNB. The source DeNB transmits an indication including information on lists of UEs which can be handed over to the target eNB, to the mobile relay node, and the mobile relay node transmits a radio resource control (RRC) connection reconfiguration message indicating a UE to handover to the target eNB.
Abstract:
The present disclosure relates to manual closed access group (CAG) selection in wireless communications. According to an embodiment of the present disclosure, a method performed by a central unit (CU) in a wireless communication system comprises: receiving, from a distribution unit (DU), information informing whether to allow a manual closed access group (CAG) selection on a CAG identifier (ID) not included in a list of allowed CAG IDs of a wireless device for each of public land mobile networks (PLMNs); receiving, from an access and mobility management function (AMF), a list of PLMNs supported by the AMF; determining CAG control information informing at least one PLMN for which a manual CAG selection on a CAG ID not included in the list of allowed CAG IDs of the wireless device is allowed, based on the list of PLMNs supported by the AMF and the information received from the DU; and transmitting, to the DU, the CAG control information.
Abstract:
A method and apparatus for provision of random access channel (RACH) related information for connection failure detection in a new radio access technology (NR) is provided. For example, a first gNB receives, from a wireless device, random access channel (RACH) related information and cell information for a radio link failure (RLF), and transmits, to a second gNB, the RACH related information and the cell information for the RLF. For another example, a gNB central unit (gNB-CU) of a first gNB receives, from a second gNB, RACH related information and cell information for RLF, and transmits, to a gNB distributed unit (gNB-DU) of the first gNB, information for an RACH configuration based on the RACH related information and the cell information for the RLF.
Abstract:
A method and apparatus for supporting of inter-gNB handover in higher layer multi-connectivity is provided. A target master node (MN) of an inter-MN handover procedure receives a handover request message including information on a redundancy sequence number (RSN) from a source MN of the inter-MN handover procedure. The information on the RSN informs that a protocol data unit (PDU) session mapped to the RSN is allocated to a secondary node (SN) of the inter-MN handover procedure for redundant transmission.
Abstract:
A method and apparatus for sidelink resource handling for central unit (CU)-distributed unit (DU) split based vehicle-to-everything (V2X) communication is provided. A gNB central unit (gNB-CU) in a wireless communication system receives, from a wireless device, information related to a radio access technology (RAT) for which a sidelink resource is requested. The gNB-CU transmits, to a gNB distributed unit (gNB-DU), the information related to the RAT for sidelink resource allocation.
Abstract:
A method and apparatus for resource handling for new radio (NR) vehicle-to-everything (V2X) based on split of central unit (CU) and distributed unit (DU) is provided. A dedicated signaling based resource allocation and a broadcast signaling based resource allocation can be provided. A gNB-CU and/or gNB-DU allocates a V2X resource based on a type of the wireless device.
Abstract:
Provided is a method for supporting E-UTRAN-NR dual connectivity (EN-DC) indicating dual connectivity between Long-Term Evolution (LTE), that is, Evolved UMTS Terrestrial Radio Access Network (E-UTRAN), and New Radio (NR) Access Technology (NR) in a wireless communication system. A first radio access network (RAN) node transmits an X2 configuration request message, including a first indication indicating that the first RAN node supports EN-DC, to a second RAN node, and receives an X2 configuration response message, including a second indication indicating that the second RAN node supports the EN-DC, from the second RAN node.
Abstract:
A method and apparatus for switching between unicast and multicast in a wireless communication system is provided. A DU of a RAN node provides the MBS by using a first transmission to the wireless device. A DU of a RAN node receives, from the wireless device, feedback information in response to the provided MBS. A DU of a RAN node transmits, to a central unit (CU) of the RAN node, a first switching message based on the received feedback information. A DU of a RAN node receives, from the CU, a second switching message to switch the first transmission to the second transmission for the MBS. A DU of a RAN node provides the MBS by using the second transmission to the wireless device.
Abstract:
The present disclosure relates to handling mobility in dual connectivity in wireless communication system. According to various embodiments, a method performed by a target secondary node (SN) for a primary secondary cell (PSCell) mobility of a wireless device from a source SN in a wireless communication system comprises: receiving, from a master node (MN), a message for informing a trigger of the PSCell mobility; obtaining inactivity status information informing that the wireless device is in an inactive state; and releasing or suspending lower layers for a communication with the wireless device based on the inactivity status information after the PSCell mobility of the wireless device to the target SN is completed, wherein the lower layers comprises at least one of a physical (PHY) layer, a media access control (MAC) layer, or a radio link control (RLC) layer.
Abstract:
A method and apparatus for small data transmission in RRC inactive state in MR-DC is provided. A MN, in a DC for a wireless device, transmits, to the wireless device, a paging message including an indication related to an EDT procedure for the SN. A MN receives, from the wireless device, an AS-RAI related to the EDT procedure for SN. A MN decides whether to continue the EDT procedure to the wireless device for the DL data or to transit the wireless device to the RRC-CONNECTED state based on the received AS-RAI.