Abstract: Apparatuses, methods, and systems are disclosed for determining data available for transmission. One method includes associating a packet data convergence protocol entity with a first radio link control entity and a second radio link control entity belonging to two different cell groups. The method includes determining an amount of data available for transmission, the amount of data available for transmission including packet data convergence protocol data and radio link control data pending for initial transmission in the first radio link control entity and the second radio link control entity. The method includes comparing the amount of data available for transmission with a threshold. The method includes submitting the packet data convergence protocol data to a first radio link control entity in response to the amount of data available for transmission being below the threshold.

Abstract: Apparatuses, methods, and systems are disclosed for remapping traffic between network slices during handover. One apparatus includes a processor and a transceiver that receives a first message indicating that a first connection is not supported in a target RAN. Here, the first connection is established with a first network slice and the first message indicates that buffering-and-forwarding of data traffic of the first connection is supported. The transceiver transmits a request to establish a second connection with a second network slice over the Target RAN and receives a second message from the Target RAN for establishing the second connection, where the second message includes an identifier of the first connection. The processor communicates at least one buffered data packet of the first connection over the second connection.

Abstract: Methods, apparatuses, and systems are disclosed for managing hybrid automatic repeat request buffers for sidelink configured grants. A method (400) includes transmitting (405) a transport block (“TB”) from a transmitting user equipment (“UE”) device to a receiving UE device using configured grant resources during a period of a sidelink configured grant. A method (400) includes receiving (410), at the transmitting UE device during the period, feedback from the receiving UE device over a physical sidelink feedback channel (“PSFCH”) indicating whether the TB was successfully received. A method (400) includes, in response to the feedback indicating that the receiving UE device successfully received the TB, stopping (415) transmissions of the TB on subsequent configured grant resources of the sidelink configured grant within the same period.

Abstract: Apparatuses, methods, and systems are disclosed for transmitting a prioritized transport block. One method includes determining, at a user equipment, a first priority corresponding to a first transport block associated with a first hybrid automatic repeat request process pending for retransmission on a configured uplink grant resource. The method includes determining a second priority corresponding to an initial transmission on the configured uplink grant resource of a second transport block associated with a second hybrid automatic repeat request process. The method includes selecting the second hybrid automatic repeat request process and transmitting the initial transmission of the second transport block on the configured uplink grant resource before retransmitting the first transport block.

Abstract: The disclosure relates to methods for establishing a secure communication link between a mobile station and a secondary base station in a mobile communication system. The disclosure is also providing mobile communication system for performing these methods, and computer readable media the instructions of which cause the mobile communication system to perform the methods described herein. Specifically, the disclosure suggests that in response to the detected or signaled potential security breach, the master base station increments a freshness counter for re-initializing the communication between the mobile station and the secondary base station; and the mobile station and the secondary base station re-initialize the communication there between. The re-initialization is performed under the control of the master base station and further includes deriving a same security key based on said incremented freshness counter, and establishing the secure communication link utilizing the same, derived security key.

Abstract: Apparatuses, methods, and systems are disclosed for determining a priority order based on uplink transmission parameters. One apparatus includes a processor that: indicates uplink transmission parameters to a medium access control layer, wherein the uplink transmission parameters correspond to an uplink grant, the uplink transmission parameters comprise an indication of a numerology and an uplink transmission duration, and the numerology comprises a subcarrier spacing; and assigns, by the medium access control layer, resources allocated by the uplink grant to the logical channels based on the uplink transmission parameters and a logical channel priority of the plurality of logical channels, wherein each logical channel of the plurality of logical channels is configured with a set of numerologies allowed by the respective logical channel, a maximum uplink transmission duration, and information indicating whether a data of the respective logical channel is allowed to be transmitted on a configured grant.

Abstract: A method and apparatus for hybrid automatic retransmission request (HARQ) is provided. The method is performed by a first UE. The method includes receiving, from a NodeB, an acknowledge configuration indicating an HARQ scheme of the first UE and uplink resource for the HARQ scheme; determining whether an acknowledgement for a data block associated with a first downlink control information (DCI) is to be transmitted according to the HARQ scheme.

Abstract: A base station (100, 300) is provided with a transmitter and a receiver. The transmitter (109) transmits a downlink signal in a downlink transmission region, in a time unit that includes the downlink transmission region, an uplink transmission region, and a gap period that is a switching point between the downlink transmission region and the uplink transmission region. The receiver (111) receives an uplink signal in the uplink transmission region, in the time unit. Furthermore, a delay tolerant signal for which a delay is tolerated more than for the downlink signal and the uplink signal is mapped to within the gap period.

Abstract: The invention relates to a method for allocating radio resources to a transmitting terminal for performing direct communication transmission over a direct link connection. The transmitting terminal receives a system information broadcast from the base station, which comprises information on a temporary transmission radio resource pool, indicating radio resources for performing a direct communication transmission, and comprises configuration information on the resource pool to limit the amount of time that the temporary radio resource pool is usable by the transmitting terminal.

Abstract: The invention relates to the allocation of radio resources by a transmitting user equipment to perform a plurality of direct SL transmissions to one or more receiving user equipments. The allocation of radio resources within a SC period is restricted, for the SC period, by a maximum number of SL processes with which a transmitting user equipment is configured. A plurality of SL grants is acquired. Among the acquired SL grants a number of those SL grants is selected that have most recently been acquired before the start of the subsequent SC period. A plurality of SL processes is associated such that each of the plurality of SL process is associated with a different one of the selected number of SL grants. For each of the plurality of the SL processes, the radio resources are allocated. Each of the plurality of SL transmissions comprises at least one SCI transmission and at least one data transmission over the SL interface.

Abstract: A transceiver can transmit a broadcasted system information message including a restricted operator service access indication from a serving cell of a network. A controller can perform a radio resource control connection establishment procedure to receive an attach request message.

Abstract: Apparatuses, methods, and systems are disclosed for adjusting retransmission timing for a configured grant. One apparatus includes a processor that determines an offset value for a retransmission timer associated with a configured grant for communications between the UE and a mobile wireless communication network. The processor starts the retransmission timer adjusted by the offset value in response to transmission of data corresponding to a transport block (“TB”) on a hybrid automatic repeat request (“HARQ”) process. The processor detects expiration of the retransmission timer associated with the configured grant. In response to detecting expiration of the retransmission timer, the processor determines a transmission resource from a plurality of configured transmission resources for retransmitting a TB.

Abstract: Apparatuses, methods, and systems are disclosed for sidelink HARQ operation. One apparatus includes a memory coupled to a processor, where the processor is configured to cause the second apparatus to receive a SL grant for a SL transmission using SL resources, the SL grant indicating a first HARQ process identified by a first HARQ process identifier, and to select a second SL HARQ process identified by a second SL HARQ process identifier for the SL transmission using the SL resources. The processor is configured to cause the second apparatus to transmit SCI containing the second SL HARQ process identifier and to perform the SL transmission using the SL resources.

Abstract: Apparatuses, methods, and systems are disclosed for transport block transmission. One method includes determining a failure of a listen-before-talk procedure for transmission of a transport block on a configured uplink grant at a first transmission opportunity associated with a hybrid automatic repeat request process. The method includes, in response to determining the failure of the listen-before-talk procedure, not transmitting the transport block on the configured uplink grant at the first transmission opportunity corresponding to the listen-before-talk procedure. The method includes autonomously triggering transmission of the transport block in a second transmission opportunity using the hybrid automatic repeat request process, wherein autonomously triggering the transmission comprises triggering the transmission without receiving network signaling for the transmission and, the second transmission opportunity occurs after the first transmission opportunity.

Abstract: Apparatuses, methods, and systems are disclosed for activating a bandwidth part. One apparatus includes a transceiver that receives a control element from a base unit associated with an active serving cell. The first apparatus includes a processor that determines an ‘activation/deactivation’ status of a set of BWPs configured in the active serving cell using the control element. The processor selectively activates a first BWP from the set of BWPs in the active serving cell based on the determined activation/deactivation status.

Abstract: The invention relates to methods for adjusting the transmit power utilized by a mobile terminal for uplink transmissions, and to methods for adjusting the transmit power used by a mobile terminal for one or more RACH procedures. The invention is also providing apparatus and system for performing these methods, and computer readable media the instructions of which cause the apparatus and system to perform the methods described herein. In order to allow for adjusting the transmit power of uplink transmissions on uplink component carriers, the invention suggests introducing a power scaling for uplink PRACH transmissions performing RACH procedures on an uplink component carrier. The power scaling is proposed on the basis of a prioritization among multiple uplink transmissions or on the basis of the uplink component carriers on which RACH procedures are performed.

Abstract: Apparatuses, methods, and systems are disclosed for providing fallback assistance information to a RAN node. One apparatus includes a memory coupled to a processor, the processor configured to cause the apparatus to: receive a service request indicating a service for fallback, the service request associated with a UE, where the service for fallback corresponds to a different RAT or a different system generation; and transmit, to a network entity, an indication of a fallback requirement or a target system, or both, based on a service type associated with the service request or a network configuration, where the service type corresponds to a different RAT or a different system generation, where a handover or redirection is performed based on the transmitted indication.

Abstract: An invention relates to methods for transmitting a buffer status report (BSR) in a mobile communication system, more particularly to the definition of rules for triggering, generating and transmitting BSRs. The invention also relates to a data transmission method utilizing new rules to decide data of which radio bearers is transmitted within a given transmission time interval. Moreover, the invention relates to scheduling method for radio resources that is taking into account additional scheduling-relevant information from the buffer status reporting and/or data transmission method. To avoid unnecessary grants from the network and to suggest an advanced handling of data transmissions the invention suggests a buffer status reporting and data transmission schemes that take into account the scheduling mode of data of radio bearers pending for transmission to decide whether to report on it in a buffer status report, respectively, whether to multiplex the data to a transport block for transmission.

Abstract: Apparatuses, methods, and systems are disclosed for determining a feedback resource associated with groupcast data. One method includes receiving a configuration associated with a resource pool for PSFCH. The method includes receiving groupcast data via sidelink and determining HARQ feedback based at least in part on the received groupcast data. The method includes determining a PSFCH resource for the HARQ feedback based at least in part on the resource pool for the PSFCH and transmitting the HARQ feedback using the determined PSFCH resource.

Abstract: Apparatuses, methods, and systems are disclosed for random access skip configuration. One method includes receiving a handover command message from a first cell, wherein: the handover command message includes first information that indicates a configuration of a second cell, random access channel resources on the second cell, and a first reference signals associated with the second cell; each of the first reference signals is associated with a random access channel resource; second information indicates skip configurations and second reference signals are associated with the second cell; and each of the second reference signals is associated with a random access skip configuration. The method includes receiving a first set of downlink reference signals and a second set of downlink reference signals. The method includes, selecting a first downlink reference signal and determining whether to perform a random access procedure.