Abstract: The present disclosure relates to a user equipment (UE) which comprises a transmitter that transmits at least one data packet based on a transmitting window having a transmitting window size. A receiver of the UE receives reception feedback regarding the at least one transmitted data packet. Processing circuitry of the UE determines, based on at least the received reception feedback, whether to change the transmitting window size for the transmitting window to be used at least for transmitting further data packets.

Abstract: The present disclosure relates to a user equipment (UE) which monitors, during a first time period, a downlink channel of an unlicensed radio cell for a channel occupancy signal transmitted by a base station via the unlicensed radio cell. The channel occupancy signal indicates that the base station occupies the downlink channel. The UE receives the channel occupancy signal during the first time period from the base station and determines that the base station occupies the downlink channel based on the received channel occupancy signal. After determining that the base station occupies the downlink channel, the UE monitors, during a second time period, the downlink channel for downlink control information regarding a downlink transmission to be received by the user equipment. The UE receives the downlink control information during the second time period and receives subsequently the downlink transmission from the base station based on the received downlink control information.

Abstract: Provided are a user equipment (UE), a base station, and an AMF (Access and Mobility Management Function) system, as well as corresponding methods and integrated circuits. The UE determines, based on a signal strength measurement or a position in combination with either of a list of cell IDs of earth moving cells and a timing or a stored mapping between geographical areas and tracking areas whether the UE is located in a registration area that has been indicated to the UE by the AMF and in which the UE is paged by the base station.

Abstract: The present disclosure relates to a mobile terminal and base station and respective operation methods. The mobile terminal comprises circuitry, which in operation, determines a condition for requesting on-demand a transmission of other system information; performs a random access procedure; and receives via broadcast a system information message including the on-demand requested other system information. The system information request message of the random access procedure includes an information element with a bit-pattern conforming to a specific format with at least a part of the bit-pattern for requesting the other system information. And the contention resolution message of the random access procedure includes the same, or the same part of the bit-pattern for detecting collisions during the random access procedure.

Abstract: The present disclosure relates to a user equipment (UE), comprising the following. A processor of the UE determines that transmission of small data is to be performed by the UE to a base station. The UE is in an inactive state out of a connected state, an idle state and the inactive state. A transmitter of the UE performs transmission of the small data. The processor determines whether to transmit a preferred-UE-state indication to the base station, wherein the preferred-UE-state indication indicates the connected state to be the preferred UE-state of the UE. The determination whether to transmit the preferred-UE-state indication indicating a connected state is based on a characteristic relating to the small data. The transmitter, when the processor determines to transmit the preferred-UE-state indication, performs the transmission of the small data with the preferred-UE-state indication to the base station.

Abstract: The present disclosure relates to a radio base station serving a user equipment in a first radio cell of a mobile communication system. The radio base station comprises processing circuitry which determines that a neighbor radio base station does not provide a beamformed reference signal to the user equipment. The neighbor radio base station controls the transmission in its neighbor radio cell of an omni-directional reference signal and the beamformed reference signal. A transmitter transmits a reference signal request to the neighbor radio base station. The reference signal request requests the neighbor radio base station to provide the beamformed reference signal to the user equipment. A receiver receives from the neighbor radio base station a reference signal request response, including information on the transmission of the requested beamformed reference signal. The transmitter transmits a notification to the user equipment, comprising information on the requested beamformed reference signal.

Abstract: The present disclosure relates to a mobile terminal for performing a handover procedure in a mobile communication system from a source to a target base station. The target base station is configured for the mobile terminal with at least a first and a different second bandwidth part within its cell bandwidth. The mobile terminal comprises: a transceiver which, in operation, receives from the source base station a handover command message including information regarding the configured at least first and second bandwidth part; and a processor which, in operation and upon reception of the handover command message, activates in the transceiver at least a selected one of the configured at least first or second bandwidth part, and controls the transceiver to perform, over the activated at least one of the configured at least first or second bandwidth part, communication with the target base station as part of the handover procedure.

Abstract: The present disclosure relates to a user equipment (UE), comprising the following. A receiver receives a UE identification from a serving base station (BS). The UE is in an inactive state. The UE identification is usable by the UE to perform a monitoring function for reception of resource assignments, at least including uplink resource assignments. The receiver receives an uplink resource assignment transmitted from the serving BS, based on the UE identification, assigning radio resources for the transmission of small data. A transmitter performs transmission of the small data to the serving BS, based on the received uplink resource assignment. A processor determines whether to extend the monitoring function for reception of at least another uplink resource assignment based on the UE identification, wherein the determination is based on a message received from the serving BS or based on whether the UE has further small data available for transmission.

Abstract: The present disclosure relates to a transceiver device, comprising circuitry, which in operation, determined that a transmission of small data is to be performed by the transceiver device to a scheduling device. The transceiver device is in an inactive state out of a connected state, an idle state and the inactive state. The circuitry, in operation, obtains a characteristic relating to the small data. The transceiver device further comprises a transceiver, which in operation, performs the transmission of the small data and a characteristic indicator indicating the characteristic relating to the small data to the scheduling device.

Abstract: The present disclosure relates to a user device, a base station, and data transmission and reception methods to be performed by a user device and a base station in a communications system. The user device comprises circuitry which, in operation, receives paging occasion configuration from the base station, including at least one parameter for configuring a predefined time-domain pattern for receiving paging occasion within a paging cycle; and performs reception of paging signal in the paging occasions within the predefined time-domain pattern configured according to the received paging occasion configuration.

Abstract: The present disclosure relates to a mobile terminal and base station and respective operation methods. The mobile terminal comprises circuitry, which in operation, determines a condition for requesting on-demand a transmission of other system information; performs a random access procedure; and receives via broadcast a system information message including the on-demand requested other system information. The system information request message of the random access procedure includes an information element with a bit-pattern conforming to a specific format with at least a part of the bit-pattern for requesting the other system information. And the contention resolution message of the random access procedure includes the same, or the same part of the bit-pattern for detecting collisions during the random access procedure.

Abstract: The present disclosure relates to a mobile terminal for performing a handover procedure in a mobile communication system from a source to a target base station. The target base station is configured for the mobile terminal with at least a first and a different second bandwidth part within its cell bandwidth. The mobile terminal comprises: a transceiver which, in operation, receives from the source base station a handover command message including information regarding the configured at least first and second bandwidth part; and a processor which, in operation and upon reception of the handover command message, activates in the transceiver at least a selected one of the configured at least first or second bandwidth part, and controls the transceiver to perform, over the activated at least one of the configured at least first or second bandwidth part, communication with the target base station as part of the handover procedure.

Abstract: The present disclosure relates to a radio base station serving a user equipment in a first radio cell of a mobile communication system. The radio base station comprises processing circuitry which determines that a neighbor radio base station does not provide a beamformed reference signal to the user equipment. The neighbor radio base station controls the transmission in its neighbor radio cell of an omni-directional reference signal and the beamformed reference signal. A transmitter transmits a reference signal request to the neighbor radio base station. The reference signal request requests the neighbor radio base station to provide the beamformed reference signal to the user equipment. A receiver receives from the neighbor radio base station a reference signal request response, including information on the transmission of the requested beamformed reference signal. The transmitter transmits a notification to the user equipment, comprising information on the requested beamformed reference signal.

Abstract: The present disclosure provides a transceiver device, comprising circuitry which, in operation, determines a current geographic cell using a current geographic position of the transceiver device and a mapping relation between geographic locations and geographic cells; and a transceiver which, in operation, transmits, in a registration request message, a current identifier indicating the current geographic cell, and receives, in a registration accept message, a plurality of first identifiers indicating a plurality of first geographic cells.

Abstract: The present disclosure relates to a user equipment comprising a receiver receiving a minimum-system-information message from a first radio base station. System information for the first radio cell that can be acquired by the UE is carried within the minimum-SI message and one or more additional-SI messages. The minimum-SI message includes system information for accessing the first radio cell and at least one system information index, each of which is associated with one of the additional-SI messages. The SI message index comprises a value tag and an area pointer, the latter pointing to one area already defined. Processing circuitry determines whether the UE had already acquired before the additional-SI message associated with the same value tag and the same area. If the determination is positive, the processing circuitry determines that system information included in said additional-SI message acquired before is applicable to the first radio cell.

Abstract: The present disclosure relates to a user device, a base station, and data transmission and reception methods to be performed by a user device and a base station in a communications system. The user device comprises circuitry which, in operation, receives paging occasion configuration from the base station, including at least one parameter for configuring a predefined time-domain pattern for receiving paging occasion within a paging cycle; and performs reception of paging signal in the paging occasions within the predefined time-domain pattern configured according to the received paging occasion configuration.

Abstract: The present disclosure relates to a user equipment (UE) which receives, from a base station via an unlicensed radio cell, uplink configuration information to configure at least one set of radio resources of the unlicensed radio cell available for transmitting uplink control information, the radio resource set being associated with a UE group ID indicating a UE group to which the UE is associated. The UE receives, from the base station, downlink control information, DCI, indicating a UE group ID. The UE, when determining that the associated UE group ID is the same as the UE group ID indicated by the DCI, determines scheduling request radio resources within the at least one set of uplink control information radio resources based on the received downlink control information. The UE transmits a scheduling request to the base station using the determined scheduling request radio resources.

Abstract: The present disclosure provides a base station, comprising a transceiver; and circuitry which, in operation, controls the transceiver to serve a cell associated with a first tracking area code, TAC, periodically transmit, in system information, a TAC indicator indicating at least one TAC associated with the cell, and transmit a trigger indicator for triggering a transceiver device to perform a system information update procedure when a content of the system information changes, wherein the circuitry, in operation, prevents the transceiver from transmitting the trigger indicator in a case where the cell is being associated with a second TAC due to a movement of the cell.

Abstract: The present disclosure relates to a user equipment comprising a receiver receiving a minimum-system-information message from a first radio base station. System information for the first radio cell that can be acquired by the UE is carried within the minimum-SI message and one or more additional-SI messages. The minimum-SI message includes system information for accessing the first radio cell and at least one system information index, each of which is associated with one of the additional-SI messages. The SI message index comprises a value tag and an area pointer, the latter pointing to one area already defined. Processing circuitry determines whether the UE had already acquired before the additional-SI message associated with the same value tag and the same area. If the determination is positive, the processing circuitry determines that system information included in said additional-SI message acquired before is applicable to the first radio cell.

Abstract: The present disclosure relates for method and apparatuses (devices) for transmission and/or reception of data over a communication network. In particular, an uplink control information is transmitted and/or received, wherein the uplink control information indicates data available for transmission at the communication device which is a user equipment, UE, and that said data available for transmission include both data for which acknowledgements are enabled and data for which acknowledgements are disabled.