Abstract: A method allocates radio resources for a transmitting user equipment (UE) to perform direct communication transmissions over a direct sidelink connection to one or more receiving UEs. At least two sidelink grant processes are provided in the transmitting UE for the transmitting UE to handle at least two sidelink grants within the same transmission control period. Each one of the sidelink grant processes is associated with an identification and can be associated with one sidelink grant. The transmitting UE acquires at least two sidelink grants and associates each of the acquired sidelink grants with one sidelink grant process. For each sidelink grant, the transmitting UE allocates radio resources according to the respective sidelink grant to perform a direct communication transmission of sidelink control information and of data over the direct sidelink connection. The transmitting UE performs a direct communication transmission per acquired sidelink grant within the same transmission control period.

Abstract: Apparatuses, methods, and systems are disclosed for data and feedback relaying. One method includes receiving, by a second sidelink user equipment, a first data packet from a first sidelink user equipment. The method includes receiving a feedback request with the first data packet. The method includes transmitting, by the second sidelink user equipment, the first data packet to at least one third sidelink user equipment. The method includes receiving feedback about a decoding status of the first data packet from the at least one third sidelink user equipment. The method includes determining a result of the feedback request at the second sidelink user equipment based on the feedback. The method includes transmitting the result of the feedback request to the first sidelink user equipment.

Abstract: The invention relates to a method for transmitting a periodic channel quality report (CSI) and/or a sounding reference symbol (SRS) from a UE to an eNodeB. To avoid double decoding at the eNodeB in transient phases, a deterministic behavior of the UE is defined by the invention, according to which the eNodeB can unambiguously determine whether the UE will transmit the CSI/SRS or not. According to one embodiment, the UL grants and/or DL assignments received until and including subframe N?4 only are considered; UL grants and/or DL assignments received by the UE after subframe N?4 are discarded for the determination. Additionally, DRX-related timers at subframe N?4 are considered for the determination. In a second embodiment, DRX MAC control elements from the eNodeB, instructing the UE to enter DRX, i.e., become Non-Active, are only considered for the determination if they are received before subframe N?4, i.e., until and including subframe N?(4+k).

Abstract: An apparatus, which includes a processor, and a memory coupled to the processor, is provided. The processor is configured to cause the apparatus to apply a first security key for a first cell group, wherein a first medium access control (MAC) entity of the apparatus is associated with the first cell group; and apply a second security key for a second cell group, wherein a second MAC entity of the apparatus is associated with the second cell group. The processor if further configured to receive a second reconfiguration message indicating a counter including a value for deriving at least in part a third security key for the second cell group; and apply the derived third security key for the second cell group, wherein the apparatus continues to use the first security key for the first cell group, and wherein the first MAC entity is not reset.

Abstract: Apparatuses, methods, and systems are disclosed for discontinuous reception configuration parameters for communication. One method (1000) includes receiving (1002), at a first user equipment and over a first radio interface, discontinuous reception configuration parameters for communication over a second radio interface. The method (1000) includes receiving (1004) quality of service requirements for transmission over the second radio interface. The method (1000) includes determining (1006) discontinuous reception communication parameters based on the discontinuous reception configuration parameters and based on the quality of service requirements. The method (1000) includes transmitting (1008) and receiving communications over the second radio interface based on the discontinuous reception communication parameters.

Abstract: Apparatuses, methods, and systems are disclosed for determining linked bandwidth parts. One method includes determining that a plurality of bandwidth parts is activated. The method includes determining that a scheduling resource is configured on the plurality of bandwidth parts, semi-persistent scheduling is configured on the plurality of bandwidth parts, or a combination thereof. The method includes determining a bandwidth part of the plurality of bandwidth parts to use for an uplink transmission.

Abstract: Apparatuses, methods, and systems are disclosed for using a medium access control protocol data unit in a message 3 buffer. One method includes, in response to a medium access control protocol data unit being in a message 3 buffer and receiving an uplink grant: obtaining the medium access control protocol data unit from the message 3 buffer; if a first size of the uplink grant does not match a second size of the medium access control protocol data unit: indicating to a multiplexing and assembly entity to include medium access control sub-protocol data units carrying medium access control service data units from the obtained medium access control protocol data unit in a subsequent uplink transmission; and obtaining the medium access control protocol data unit from the multiplexing and assembly entity.

Abstract: Apparatuses, methods, and systems are disclosed for relay advertisement for sidelink operation. One apparatus includes a processor and a transceiver that receives a relay advertisement from a SL Relay UE supporting sidelink operation, where the relay advertisement contains at least one relay attribute. The processor determines that relay via the SL Relay UE is needed using the at least one relay attribute. The transceiver sends a relay connection request to the SL Relay UE and receives a relay connection confirmation from the SL Relay UE. Via the transceiver, the processor performs sidelink communication with a remote receiver device via the SL Relay UE.

Abstract: Apparatuses, methods, and systems are disclosed for sidlink discontinuous reception configuration. One method (1000) includes accessing (1002) a sidelink discontinuous reception configuration. The sidelink discontinuous reception configuration corresponds to a quality of service class; an identifier of the quality of service class; at least on attribute of the quality of service class; or some combination thereof. The method (1000) includes performing (1004) sidelink communication based on the sidelink discontinuous reception configuration.

Abstract: Apparatuses, methods, and systems are disclosed for improved communications using relay over sidelink radio interface. One apparatus includes a processor and a transceiver that transmits a data packet via a sidelink interface, where the data packet is transmitted to a first UE device and a second UE device. The transceiver receives a first HARQ feedback from the first UE device and receives a second HARQ feedback from the second UE device. Here, the first HARQ feedback indicating a decoding status of the data packet at the first UE device and the second HARQ feedback indicating a decoding status of the data packet at the second UE device. The processor determines to stop transmission of the data packet in response to at least one of the first and second HARQ feedback being a positive acknowledgement.

Abstract: Apparatuses, methods, and systems are disclosed for reporting transmission for discontinuous reception. One method includes determining whether a symbol occurs within a discontinuous reception on duration time period. The method includes, in response to determining that the symbol occurs within the discontinuous reception on duration time period, determining whether to transmit a report. The method includes transmitting the report regardless of whether a discontinuous reception on duration timer is running.

Abstract: Embodiment of the present application is directed to a method and apparatus for target IAB node selection. According to an embodiment of the present application, the method includes receiving hop number information and end-to-end link quality information associated with a plurality of IAB nodes, wherein the plurality of IAB nodes include serving IAB nodes of an IAB node and at least one neighbor IAB node of the IAB node, and each of the serving IAB nodes and the at least one neighbor IAB node is associated with at least one active route. The method may further include reporting end-to-end link quality information associated with each of the at least one neighbor IAB node.

Abstract: The present disclosure mainly relates to improvements for the buffer status reporting and the logical channel prioritization procedures performed in the UE, in scenarios where the UE is in dual connectivity and the PDCP layer of the UE is shared in the uplink for MeNB and SeNB. According to the present disclosure, a ratio is introduced according to which the buffer values for the PDCP are split in the UE between the SeNB and the MeNB according to said ratio.

Abstract: Apparatuses, methods, and systems are disclosed for transmitting and/or receiving configuration information for an inactive state. One method includes receiving configuration information for a radio bearer. The method includes transitioning the radio bearer to an inactive state and configuring the radio bearer based on the configuration information.

Abstract: Apparatuses, methods, and systems are disclosed for indication of a request for sidelink resources. One method (500) includes receiving (502) a hybrid automatic repeat request feedback message over a first radio interface. The method (500) includes, in response to determining that the hybrid automatic repeat request feedback message indicates an unsuccessful decoding of a corresponding transport block, transmitting (504) a negative acknowledgment on a physical uplink control channel of a second radio interface. The negative acknowledgment indicates a request for sidelink resources on the first radio interface. The method (500) includes starting (506) a timer in response to transmitting the negative acknowledgment.

Abstract: Apparatuses, methods, and systems are disclosed for extracting EtherCAT datagrams from an EtherCAT frame. One method includes receiving an EtherCAT frame. The method includes determining a first EtherCAT datagram in the EtherCAT frame for a first device and a second EtherCAT datagram in the EtherCAT frame for a second device. The method includes extracting the first EtherCAT datagram from the EtherCAT frame to result in an extracted first EtherCAT datagram and the second EtherCAT datagram from the EtherCAT frame to result in an extracted second EtherCAT datagram. The method includes transmitting the extracted first EtherCAT datagram directly to the first device. The method includes transmitting the extracted second EtherCAT datagram directly to the second device.

Abstract: Apparatuses, methods, and systems are disclosed for performing energy efficient positioning. One apparatus in a mobile communication network includes network interface and a processor that establishes a LPP session with a UE. In response to the network interface receiving an indication from the UE for operating in a reduced power mode, the processor configures the UE for energy efficient positioning measurements.

Abstract: Apparatuses, methods, and systems are disclosed for radio resource configuration for power saving. One method includes monitoring, via a first receiver including a wake-up receiver, a sidelink control channel for a WUS. The method includes monitoring, via a second receiver, a physical sidelink control channel and a data channel. The second receiver includes a baseband processing unit separate from the first receiver. The method includes receiving a radio resource configuration for WUS reception. The method includes receiving, outside an active period, the WUS in a resource indicated by the radio resource configuration. The method includes determining to wake-up the second receiver based on the WUS. The WUS includes a wake-up indicator bit, a destination identifier, or a combination thereof.

Abstract: Apparatuses, methods, and systems are disclosed for autonomous bandwidth part switching. One method includes determining that a channel parameter corresponding to an active uplink bandwidth part of a serving cell is greater than a predetermined value at a time in which the active uplink bandwidth part is a first bandwidth part. The method includes, in response to determining that the channel parameter is greater than the predetermined value, autonomously switching the active uplink bandwidth part from the first uplink bandwidth part to a second uplink bandwidth part configured for the serving cell, wherein switching the active uplink bandwidth part comprises deactivating the first uplink bandwidth part.

Abstract: Provided are an eNB, a UE and wireless communication methods. The eNB, in an embodiment, includes circuitry operative to fill a SPS activation/deactivation field in a DCI with a predetermined pattern of bits; and a transmitter operative to transmit the DCI to a first UE for the first UE to start periodically transmitting signals to a second UE or stop periodically transmitting signals to the second UE based on the SPS activation/deactivation field. The DCI is in a SPS format formed by adopting part or all bits of at least one field of DCI format 5 as the SPS activation/deactivation field, and information supposed to be transmitted in the at least one field is indicated with the assistance of or by RRC or MAC signaling.