Abstract: A user equipment (UE), the UE including: a controller configured to control to trigger a Buffer Status Report (BSR) if an allocated uplink resource for a Transmission Time Interval (TTI) is capable of accommodating a Sidelink Buffer Status Report (BSR) Medium Access Control (MAC) Control Element (CE) containing a buffer status for at least one Sidelink Destination and its corresponding MAC subheader; and a transmitter configured to transmit the BSR, wherein, the controller controls to cancel all triggered Sidelink BSRs if no side-link data available for transmission exists.

Abstract: The present disclosure relates to methods and apparatuses. According to some embodiments of the disclosure, a method performed by a communication device, includes: receiving, from a base station, a first configuration information indicating a threshold to configure the communication device, wherein the threshold is associated with data volume; determining whether congestion happens at the communication device based on the threshold; and transmitting a congestion indication to a first parent node via a Backhaul Adaptation Protocol (BAP) signaling message when it is determined that the congestion happens at the communication device.

Abstract: Embodiments of the present application relate to a method and apparatus for data transmission. An exemplary method includes: receiving a data transmission request from a first base station, in a second base station, wherein the data transmission request indicates data transmission information on a data transmission; determining whether to transmit the data transmission by the second base station or make an anchor relocation for the data transmission based on the data transmission information and assistant information associated with the data transmission; and transmitting a data transmission response to the first base station based on the determining.

Abstract: Apparatuses, methods, and systems are disclosed for selecting a base unit in response to a handover condition being triggered. One method (1000) includes selecting (1002) a base unit of multiple base units for handover in response to at least one base unit of the multiple base units triggering a handover condition. The method (1000) includes transmitting (1004) a random access preamble to the base unit. The method (1000) includes performing (1006) a reestablishment procedure to establish communication with one base unit of the multiple base units in response to determining an inability to access each base unit of the multiple base units that meets the handover condition.

Abstract: The present application relates to a user equipment, a base station, and a method for relaxed RRM measurement. The base station transmits information to the user equipment. The user equipment receives the information from a base station on a condition for enabling a relaxed RRM measurement, and then performs the relaxed RRM measurement during a period according to the information. The period is associated with a state of the user equipment.

Abstract: The present disclosure is directed to a method and apparatus for HARQ-ACK and SR transmission. According to an embodiment of the present disclosure, a method may include: configuring a first PUCCH resource for a HARQ-ACK transmission and a second PUCCH resource for a SR transmission; determining whether the HARQ-ACK transmission in the first PUCCH resource overlaps with the SR transmission in the second PUCCH resource in time domain; and in response to that the HARQ-ACK transmission in the first PUCCH resource overlaps with the SR transmission in the second PUCCH resource, at least dropping the exactly overlapped part of one of the HARQ-ACK transmission in the first PUCCH resource and the SR transmission in the second PUCCH resource.

Abstract: A relay selection method and apparatus and a system. The method includes: relay equipment broadcasts relay discovery information, the relay discovery information including identifier information (a relay UE ID) of the relay equipment and identifier information (a cell ID) of a serving cell of the relay equipment, so that remote terminal receiving the relay discovery information selects relay equipment according to the relay discovery information or transmits relay information of discovered relay equipment to an eNB, thus the eNB may select relay equipment for the remote terminal. With certain embodiments, the serving cell may learn a cell where a relay to which the terminal accesses is located, so as to perform configuration for the terminal or perform path switching of downlink data.

Abstract: Methods and apparatuses for recovering from beam failure are disclosed. A method of recovering from beam failure, comprising: sending a beam failure recovery request message including information regarding beam failure recovery and information regarding a new candidate beam via a working beam of a first cell; monitoring a response via the new candidate beam of a second cell; and receiving the response via the new candidate beam from the second cell.

Abstract: The present application relates to a method and apparatus for aligning sidelink DRX configuration. One embodiment of the subject application provides a method for sidelink communication, comprising: receiving, from a second User Equipment (UE), a second request for one or more sidelink Discontinuous Reception (DRX) configurations, wherein the second request includes assisting information; and transmitting, by the first UE, the one or more sidelink DRX configurations determined based on the assisting information to the second UE.

Abstract: The subject application relates to method and apparatus of group-based resource allocation. A method performed by a first Base station (BS), comprises: transmitting a scheduling user equipment (S-UE) qualification criterion to a group of UEs; receiving at least one request for being a first S-UE from at least one member UE (M-UE) in the group that satisfies the S-UE qualification criterion; transmitting a signal indicating the first S-UE based on the at least one request; and transmitting, to the first S-UE, group-based resource information for the group of UEs.

Abstract: Apparatuses, methods, and systems are disclosed for discarding data corresponding to a conditional handover. One apparatus includes a transmitter that transmits information corresponding to a conditional handover to multiple candidate cells. The information indicates to one or more candidate cells of the multiple candidate cells a time to discard data or to discard the data.

Abstract: Apparatuses, methods, and systems are disclosed for determining a beam for preamble transmission. One apparatus includes a processor that determines a beam from multiple beams for preamble transmission. In response to the multiple beams including one or more beams configured with a contention-free resource, the one or more beams configured with a contention-free resource have a higher priority than other beams of the multiple beams.

Abstract: Apparatuses, methods, and systems are disclosed for selecting a base unit in response to a handover condition being triggered. One method (1000) includes selecting (1002) a base unit of multiple base units for handover in response to at least one base unit of the multiple base units triggering a handover condition. The method (1000) includes transmitting (1004) a random access preamble to the base unit. The method (1000) includes performing (1006) a reestablishment procedure to establish communication with one base unit of the multiple base units in response to determining an inability to access each base unit of the multiple base units that meets the handover condition.

Abstract: The present application is related to a method of failure handling in conditional handover. A method performed by a user equipment (UE) comprises: receiving a Conditional Handover (CHO) configuration; initiating a re-establishment procedure if one of a plurality first conditions is met; performing a cell selection procedure; performing a CHO procedure if a cell selected through the cell selection procedure is configured with the CHO configuration; and performing the re-establishment procedure if the selected cell is not configured with the CHO configuration.

Abstract: Apparatuses, methods, and systems are disclosed for updating SRS spatial relation information. One method includes transmitting first information indicating SRS spatial relation information for an SRS resource. The SRS spatial relation information includes: SRS spatial relation information identifiers; and an SRS spatial relation information reference signal corresponding to each SRS spatial relation information identifier. The method includes transmitting second information indicating an update to the SRS spatial relation information. The second information includes: a serving cell identifier; a bandwidth part identifier; one or more SRS resource identifiers, one or more SRS resource set identifiers, or a combination thereof; and one or more SRS spatial relation information identifiers. Each of the one or more SRS resource identifiers corresponds to each of the one or more SRS spatial relation information identifiers.

Abstract: Embodiments of the present application are directed to a method and apparatus for timely scheduling. The method may include: configuring DRX configuration information; and preventing a MAC entity from entering into inactive time in response to that a first MAC PDU is not transmitted in an uplink grant.

Abstract: Apparatuses and methods are disclosed for sidelink (SL) communication. One method of apparatus includes determining a first resources pool for SL communication which includes SL transmission resources and SL reception resources, and transmitting resources information to a relay UE. Wherein, the first resources pool is a SL subframes pool or a SL SPS configurations pool, and the resources information is the first resource pool or a resource pair selected by the apparatus for SL communications.

Abstract: Apparatuses, methods, and systems are disclosed for discarding radio link control service data units. One method (700) includes sending (702) at least a portion of a radio link control service data unit. The method (700) includes receiving (704) an indication from a packet data convergence protocol layer to discard the radio link control service data unit after sending at least the portion of the radio link control service data unit. The method (700) includes, in response to receiving the indication to discard the radio link control service data unit, transmitting (706) information indicating to discard the radio link control service data unit.

Abstract: Methods and apparatuses for configuring PUSCH pathloss reference signal for SRI PUSCH power control are disclosed. A method comprises configuring PUSCH pathloss reference signal for one or more SRI PUSCH power controls by using a MAC CE, and transmitting a PDSCH carrying the MAC CE.

Abstract: The present disclosure relates to methods and apparatuses. According to some embodiments of the disclosure, a method includes: receiving configuration information at a communication device, wherein the configuration information indicates routing configuration and bearer mapping configuration; detecting a failure on a first egress link between the communication device and a first next hop communication device of the communication device; re-routing first data intended to be transmitted on the first egress link, wherein the first data has not been acknowledged by a layer lower than a BAP layer of the communication device; reselecting a second egress link between the communication device and a second next hop communication device based on the routing configuration; reselecting an egress RLC channel of the second egress link based on bearer mapping configuration; and submitting the first data to the reselected egress RLC channel of the second egress link.