Abstract: A master RAN node (1) sends, to a control plane function (5) in a core network (4), a modification request for modification of a first PDU session already established between a radio terminal (3) and a user plane function (6) in the core network (4). The modification request implicitly or explicitly indicates that PDU session split is needed for the first PDU session. The modification request causes the control plane function (5) to control the user plane function (6) to move a specific one or more QoS flows of a plurality of QoS flows associated with the first PDU session from a first tunnel between the user plane function (6) and the master RAN node (1) to a second tunnel between the user plane function (6) and a secondary RAN node (2). This contributes, for example, to implementing PDU session split in a radio communication network.

Abstract: There is provided a base station which can prevent transmission of a Time Synchronisation Info IE (Information Element) from causing a procedure which the base station cannot execute. When the base station (10-1) according to the present invention receives Muting Pattern Information which does not contain a Muting Pattern Offset, the base station (10-1) decides that the Muting Pattern Offset requested in a former request has been accepted.

Abstract: A gNB central unit (gNB-CU) includes a transmitter and a receiver. The transmitter is configured to transmit a message to a gNB distributed unit (gNB-DU). The receiver is configured to receive from the gNB-DU, in response to the message, a list indicating User Equipments (UEs) which needs to be notified by dedicated signaling of system information.

Abstract: A RAN node (2) receives, from a core network node (6, 7, 8), a first identifier that is used by a service, an application, or an edge server (5) to identify a radio terminal (1) connected to the RAN node (2), and associates the first identifier with a second identifier that is used by the RAN node (2) to identify the radio terminal (1). Further, the RAN node (2) communicates with the edge server (5) using the first identifier. It is thus, for example, possible to allow an MEC server (or an MEC application hosted on the MEC server) and a radio access network (RAN) node to directly exchange therebetween a control message regarding a specific radio terminal.

Abstract: A system is disclosed in which a base station performs an Automatic Neighbour Relation (ANR) operation in relation to a Wireless Local Area Network (WLAN) and obtains, from a mobile communication device (UE) or a Mobility Management Entity (MME), the Transport Network layer (TNL) address associated with a WLAN Termination node of the WLAN for establishing a connection between the base station and the WLAN Termination node.

Abstract: A master RAN node (1) sends, to a control plane function (5) in a core network (4), a modification request for modification of a first PDU session already established between a radio terminal (3) and a user plane function (6) in the core network (4). The modification request implicitly or explicitly indicates that PDU session split is needed for the first PDU session. The modification request causes the control plane function (5) to control the user plane function (6) to move a specific one or more QoS flows of a plurality of QoS flows associated with the first PDU session from a first tunnel between the user plane function (6) and the master RAN node (1) to a second tunnel between the user plane function (6) and a secondary RAN node (2). This contributes, for example, to implementing PDU session split in a radio communication network.

Abstract: A communication system is disclosed in which an NR radio access network (RAN) node identifies resources, that the NR RAN node is to use for transmissions, for protection from interference from another RAN node. The NR RAN node sends, to the other RAN node, information indicating the identified resources for protection from interference. The information indicating the identified resources comprises a list of parameters, typically including resource bitmaps, based on which the other RAN node is able to determine the resources for protection from interference.

Abstract: A wireless communication system of the present invention includes a first base station (30) and a second base station (20) configured to be capable of transmitting downlink data received from a core network to a terminal via the second base station (20) and the first base station (30). The second base station (20) transmits, to the first base station (30), information for identifying downlink data to be discarded from among the downlink data transmitted to the first base station (30) and a command for discarding the downlink data identified by the information. The first base station (30) discards downlink data not transmitted to the terminal from among the downlink data identified by the information.

Abstract: A gNB central unit (gNB-CU) includes a transmitter and a receiver. The transmitter is configured to transmit a message to a gNB distributed unit (gNB-DU). The receiver is configured to receive from the gNB-DU, in response to the message, a list indicating User Equipments (UEs) which needs to be notified by dedicated signaling of system information.

Abstract: A communication system is disclosed in which an NR radio access network (RAN) node identifies resources, that the NR RAN node is to use for transmissions, for protection from interference from another RAN node. The NR RAN node sends, to the other RAN node, information indicating the identified resources for protection from interference. The information indicating the identified resources comprises a list of parameters, typically including resource bitmaps, based on which the other RAN node is able to determine the resources for protection from interference.

Abstract: A communication system is disclosed in which a base station apparatus obtains information identifying a total integrity protected uplink data rate for a user equipment (UE), allocates a portion of the total integrity protected uplink data rate to a secondary node (SN), and notifies the UE about the portion allocated to the SN.

Abstract: A radio terminal (2) controls state transitions of the radio terminal (2) among first to third RRC states. In addition, if the radio terminal (2) is in the second RRC state, if a current cell that the radio terminal (2) has camped on is different from a first cell in which a state transition from the first RRC state to the second RRC state was performed, and if the current cell satisfies a predetermined condition, the radio terminal (2) allows the radio terminal (2) to transmit data to be transmitted in the current cell by a first transmission procedure in which the radio terminal (2) transmits uplink data before entering the first RRC state.

Abstract: A radio station (2) transmits configuration information (501) to a radio terminal (1). The configuration information (501) indicates, on a cell-by-cell basis, at least one specific cell on which the radio terminal (1) is allowed to perform at least one of data transmission and data reception on a radio bearer used for uplink transmission or downlink transmission or both via a common Packet Data Convergence Protocol (PDCP) layer (402). As a result, in a radio architecture that provides tight interworking of two different Radio Access Technologies (RATs), it is for example possible to allow an eNB to indicate, to a radio terminal (UE), a specific cell on which the UE should perform uplink transmission.

Abstract: A RAN node (1) broadcasts a first initial bandwidth part (BWP) configuration via system information, and broadcasts a second initial BWP configuration via the system information or transmits it via radio terminal dedicated signaling. The first initial BWP configuration includes cell-specific common parameters of a first initial BWP of a cell, while the second initial BWP configuration includes cell-specific common parameters of a second initial BWP of the cell. The second initial BWP is not used by a first type of radio terminal, but is used by a second type of radio terminal. The bandwidth of the second initial BWP is equal to or narrower than of the first initial BWP. This allows the second type of radio terminal, which has a limited capability compared to the first type of radio terminal, to use an initial BWP suitable for its capability.

Abstract: In one aspect, a method performed by a base station in a Non-Public Network includes: operating a closed access group (CAG) cell; establishing a communication connection with a user equipment (UE) in the CAG cell, wherein the CAG cell is associated with a CAG having an associated CAG identifier; suspending the communication connection; receiving, from a further base station, a first message indicating that the UE has requested resumption of the communication connection in a CAG cell operated by the further base station, the first message including a CAG identifier of a CAG which the CAG cell operated by the further base station is associated with; performing CAG membership verification for the CAG identified by the CAG identifier in the first message; and sending, to the further base station, a second message indicating a result of the CAG membership verification.

Abstract: If uplink data together with an RRC resume request message is received from a radio terminal in an RRC_INACTIVE state and a radio terminal context is not available in a first RAN node (1), the first RAN node (1) sends a second type of control message to a second RAN node (2). The second type of control message requests the radio terminal context, and is distinct from a first type of control message that is sent to the second RAN node (2) by the first RAN node (1) when an RRC resume request message not accompanied by uplink data is received. This can contribute, for example, to enabling uplink (UL) data of a radio terminal in RRC_INACTIVE to be transmitted to a core network without relocating a radio terminal context from an old RAN node to a new RAN node.

Abstract: A radio terminal (2) controls state transitions of the radio terminal (2) among first to third RRC states. In addition, if the radio terminal (2) is in the second RRC state, if a current cell that the radio terminal (2) has camped on is different from a first cell in which a state transition from the first RRC state to the second RRC state was performed, and if the current cell satisfies a predetermined condition, the radio terminal (2) allows the radio terminal (2) to transmit data to be transmitted in the current cell by a first transmission procedure in which the radio terminal (2) transmits uplink data before entering the first RRC state.

Abstract: Methods and apparatus are disclosed for controlling whether a user equipment (UE) is allowed to access a cell of a closed access group (CAG) when the CAG is selected manually by a user of the UE.

Abstract: This present disclosure provides a mechanism to classify CSI report(s) into valid/partially valid/invalid CSI report(s) by defining a new CSI evaluation methodology. The present disclosure also introduces a new UE behaviour of sending different (valid/partially valid/invalid) type of CSI report to inform the gNB about the TCI state known status at the UE. The present disclosure also introduces an implicit or explicit signalling method to inform the type of CSI report to the gNB. The present disclosure also discloses new UE behaviour of skipping CSI reports between partially valid/invalid CSI report and valid CSI report during TCI state switching/SCell activation.

Abstract: The present disclosure provides an apparatus, and a method for optimizing user equipment (UE) power consumption on activated Secondary Cells during dormancy and non-dormancy behavior based on the first configuration and second configuration information as provided by radio station.