Abstract: According to an example aspect of the present disclosure, there is provided a method comprising determining, by an apparatus, a cellular communication network providing at least one service flow for the apparatus, receiving by the apparatus, from the network, energy-related information about the network, wherein said energy-related information is associated with the at least one service flow and determining by the apparatus, based at least in part on said information, whether to adapt the at least one service flow.

Abstract: There is provided receiving, by a receiver wireless device, a groupcast, from a transmitter wireless device of the groupcast, determining by the receiver wireless device, at least one trigger for requesting to modify Hybrid Automatic Repeat Request, HARQ, feedback, transmitting, by the receiver wireless device to one or more peer receiver wireless devices of the groupcast, based on the determined at least one trigger, at least one request to modify the HARQ feedback to the groupcast.

Abstract: Systems, methods, apparatuses, and computer program products for reducing handover interruption time using sidelink communication are provided. For example, the handed-over (remote) user equipment may exchange uplink and downlink data with the target cell via the additional or assisting link to another relay user equipment while the remote user equipment performs the random access procedure (random access channel procedure) and may establish its own direct radio link to the target cell.

Abstract: According to an example aspect of the present invention, there is provided an apparatus comprising means for receiving, by a first wireless terminal, a first retransmission of a groupcast message successfully from a second wireless terminal, means for skipping, by the first wireless terminal, a transmission of feedback related to reception of the first retransmission at the first wireless terminal, means for monitoring, by the first wireless terminal, feedback from a third wireless terminal, wherein said feedback is related to reception of the first retransmission at the third wireless terminal and means for transmitting, by the first wireless terminal, derived feedback related to reception of the first retransmission at the third wireless terminal to the second wireless terminal.

Abstract: The disclosure relates to receiving sidelink control information sent from a relay user equipment and performing flow control for ingress data sent from an apparatus to the relay user equipment to be relayed to a destination user equipment paired with the apparatus based on the sidelink control information sent from the relay user equipment.

Abstract: Systems, methods, apparatuses, and computer program products for reusing sidelink resources associated with dropped configured grant are provided. For example, a method can include receiving, with a first device, a sidelink grant from a network node for transmission to a third device; receiving a coordination request from a second device; determining whether to transmit to the third device using at least one resource associated with the sidelink grant; and determining whether to forward the at least one resource associated with the sidelink grant to the second device with a response to the coordination request.

Abstract: An intermediate apparatus and method for relaying data from a remote wireless device to a base station with reduced latency is discussed. The method includes the steps of receiving a transmission having control information and data. Determining from the control information that the data is to be forwarded to a wireless communication node and that a future data transmission comprising data to be forwarded is scheduled. Estimating from the control information an amount of the data in the future data transmission. Generating a resource request comprising the estimated amount of data in the future data transmission and transmitting, the resource request towards the wireless communication node.

Abstract: Disclosed are methods, apparatuses, and systems for carrier selection or re-selection for sidelink carrier aggregation. The methods include: determining, by a user equipment (UE) in a first sidelink communication, based on a first condition, one or more first candidate carriers from among one or more dedicated sidelink carriers, the one or more dedicated sidelink carriers being dedicated for the first sidelink communication; determining, by the UE, based on a second condition, one or more second candidate carriers from among one or more shared sidelink carriers, the one or more shared sidelink carriers being shared by at least the first sidelink communication and a second sidelink communication; and selecting, by the UE, one or more sidelink carriers for a sidelink transmission from among at least one of: the one or more first candidate carriers or the one or more second candidate carriers.

Abstract: Disclosed are methods, apparatuses, and systems for providing a resource indication in a communication. The methods include: determining an overlap between a first resource reserved by a first node and a second resource reserved by a second node; and transmitting one or more indications indicating the overlap between the first resource and the second resource.

Abstract: A first UE sending via a sidelink messages to second UE(s) indicating the first UE is changing to a different network access node and therefore might be changing a synchronization source, which the second UE(s) use to maintain a sidelink communication between the first and second UEs. The first UE performs a handover process from a first network access node in the first wireless network to the different network access node in the second wireless network. The second wireless network uses the second synchronization source. The first UE attempts to synchronize the second UE(s) to the second synchronization source. The second UE, and first and second networks may interoperate to effectuate this process. Methods, apparatus, software, and computer program products are disclosed.

Abstract: There is provided an apparatus which is a first apparatus, configured to communicate with at least one second apparatus via sidelink resources associated with unmodified sidelink control information, the apparatus comprising means for: detecting a possibility of a malicious attack on the sidelink resources or receiving an instruction to modify a sidelink control information message; transmitting, to the at least one second apparatus, a modified sidelink control information message indicative of at least one secret indication.

Abstract: Disclosed are methods, apparatuses, and systems for resource selection for a user equipment (UE) in a first sidelink communication.

Abstract: Methods, apparatuses, and computer program products are provided to facilitate relay discovery, selection, and/or reselection for U2N relaying over SL utilizing a service-continuity indication provided via one or more solicitation messages from a remote UE to at least one relay UE. In some embodiments, a serving network may provide identification of the at least one relay UE via a remote configuration for the remote UE. In some embodiments, the serving network may provide identification of the at least one relay UE via a response message transmitted to the remote UE via SL. In some embodiments, the remote UE may prioritize one or more potential relay UE candidates identified by the serving network.

Abstract: A method may include initiating, by a transmitter user equipment, a hybrid automatic repeat request process for groupcasting a transport block over seedbank to one or more relay user equipment and at least one remote user equipment. The method may also include performing a first groupcast transmission of the transport block using the hybrid repeat request process. The method may further include monitoring feedback from the one or more relay user equipment and the at least one remote user equipment at a first time instance and at a second time instance. In addition, the method may include generating a retransmission strategy of the transport block depending on the feedback monitored at the first time instance and the second time instance. Further, the method may include controlling retransmission of the transport block using the hybrid automatic repeat request process based on the retransmission strategy.

Abstract: A first user equipment able to communicate with other user equipments via sidelink communications determines a procedure to use for selecting a host of a coordination of sidelink discontinuous reception when receiving a connection request from a second user equipment, and based on whether a requirement for a flow corresponding to the connection request meets a threshold. The first user equipment then performs sidelink discontinuous reception coordination between the first and second user equipment based on the determined host. The first user equipment sends configuration a second user equipment to use for discontinuous reception for the sidelink communications, or it requests help from a second user equipment to perform alignment of discontinuous reception for the sidelink communications.

Abstract: Disclosed is a method comprising receiving, by an apparatus, a first set of information associated with one or more first beams of a network element; obtaining, by the apparatus, a second set of information associated with one or more second beams of the network element by performing beam-specific downlink measurements on the one or more second beams; and determining, by the apparatus, based at least partly on the first set of information and the second set of information, whether the apparatus is in a suitable location for acting as a positioning anchor for a target user device.

Abstract: Disclosed is a method comprising receiving a first transmission from a first terminal device, wherein the first transmission indicates one or more resources to be used at least for a second transmission, monitoring one or more physical feedback channel resources associated with the indicated one or more resources, detecting one or more feedback signals from the monitored one or more physical feedback channel resources, and extending a wake-up time based at least partly on the detected one or more feedback signals.

Abstract: Example embodiments of the present disclosure relate to transmission of control information associated with sidelink positioning reference signal. In an example method, a first terminal device in a radio access network comprises at least one processor; and at least one memory including computer program code; the at least one memory and the computer program code configured to, with the at least one processor, cause the first terminal device to: transmit, to a second terminal device in the radio access network, control information associated with a sidelink (SL) positioning reference signal (PRS) during a SL positioning session for positioning of the second terminal device, using a resource for the control information in a Physical Sidelink Feedback Channel (PSFCH) symbol or in at least one symbol dedicated for the control information. In this way, the first terminal device can efficiently transmit control information to the second terminal device with backward compatibility.

Abstract: Disclosed are methods, apparatuses, and systems for resource selection for a user equipment (UE) in a first sidelink communication.

Abstract: Disclosed are methods, apparatuses, and systems for resource selection for a user equipment (UE) in a first sidelink communication.