Abstract: The methods and systems discussed herein describe how a first wireless communication device forwards a reservation signal, which identifies one or more time-slots that have been reserved by a second wireless communication device, to avoid “merging collisions.” In some examples, the first wireless communication device determines that it should forward the reservation signal based on a determination that the first wireless communication device is located at the edge of a coverage area associated with the second wireless communication device. This determination can be based on location information associated with the second wireless communication device or whether a received power value of the reservation signal is within a pre-defined threshold range value. In other examples, the first wireless communication device transmits an updated forwarded reservation signal, which is an update of a previously forwarded reservation signal in which multiple time-slots were reserved.

Abstract: The devices, systems, and methods discussed herein involve a vehicle, in which a reporting user equipment (UE) device is located, using one or more sensors to search and identify other nearby UE-containing vehicles. The sensor output is used as an input to an Artificial Intelligence (AI) algorithm to identify the UE-containing vehicles that could be potential hidden-nodes relative to each other. After detecting the potential hidden-node vehicles, the reporting UE has the option to inform the transmitting UEs to reserve orthogonal resources for their next SL transmission. If the reporting UE is already in communication with one of the potential hidden-node UEs, the reporting UE is aware of the other UE's transmit resources. Based on this knowledge, the reporting UE forwards the other UE's resource reservation information to the other potential hidden-node UE. Alternatively, the reporting UE broadcasts a Neighbor List (NL) message with the heading-direction of the hidden-node vehicles.

Abstract: The devices, systems, and methods discussed herein involve abase station (e.g., gNB) that employs a broadcast technology such as the Multimedia Broadcast Multicast Service (MBMS) to relay hidden-node information to the neighboring UE devices. In some examples, a base station receives at least one report based on data acquired by at least one non-communication sensor of a user equipment (UE) device. Based on the at least one report, the base station transmits a message to another UE device that results in the other UE device refraining from using communication resources that will interfere with transmissions by other UE devices.

Abstract: An eNodeB transmits a high priority indicator within a licensed frequency band. In response to receiving the high priority indicator, other eNodeBs refrain from transmitting signals within an unlicensed frequency band. After determining that no other eNodeBs are transmitting signals within the unlicensed frequency band, the eNodeB transmitting the high priority indicator transmits signals to a user equipment (UE) device.

Abstract: A base station (eNB) determines device-to-device (D2D) transmission parameters for signal transmission over a D2D communication link between a first user equipment (UE) device and a second UE device. The eNB instructs the first UE device to transmit a reference signal that is received by the second UE device. The second UE device reports D2D channel characteristic information indicative of the received reference signal. Based on the D2D channel characteristic information, the base station determines the D2D transmission parameters and provides the parameters to the first UE device.

Abstract: The devices, systems, and methods discussed herein involve a base station (e.g., gNB) that employs a broadcast technology such as the Multimedia Broadcast Multicast Service (MBMS) to relay hidden-node information to the neighboring user equipment (UE) devices. In some examples, a base station receives a report based on data acquired by at least one non-communication sensor of a first UE device. Based on the report, the base station assigns communication resources to a second UE device and a third UE device. The base station transmits one or more messages that collectively identify assignment of the first communication resources and the second communication resources.

Abstract: An origination device transmits a “received data signal” to a signal forwarding device. The “received data signal” comprises a first set of data. The origination device also transmits at least one “received control signal” to the signal forwarding device and to a destination device. The at least one “received control signal” comprises a first set of control information and a second set of control information. The first and second sets of control information are both associated with the first set of data. The first set of control information contains instructions pertaining to the signal forwarding device processing the first set of data. The second set of control information contains instructions pertaining to the destination device processing the first set of data. The signal forwarding device transmits a “forwarded signal” to the destination device. The “forwarded signal” contains forwarded data, based on the first set of data.

Abstract: A network configures (e.g., allocates) reservation channel resources within a reservation channel resource pool, comprising at least one time-slot comprising a set of mini-slots, and transmits information regarding the reservation channel resource pool to at least one wireless communication device of a vehicle ad-hoc network. A wireless communication device interested in transmitting a reservation channel transmission selects, from the reservation channel resource pool, time-frequency resources for a reservation channel transmission. The wireless communication device also selects a number of mini-slots over which to repeatedly transmit the reservation channel transmission. The wireless communication device repeatedly transmits the reservation channel transmission over the selected number of mini-slots, using the selected time-frequency resources.

Abstract: A relay user equipment (UE) device transmits data received from a source UE device to a destination device. In response to determining that the data was not successfully received at the destination device, the relay UE device transmits a hybrid automatic repeat request (HARQ) NACK message to the source UE device indicating the data was not successfully received at the destination UE device. The relay UE device transmits the HARQ NACK message even when the data was successfully received at the relay UE device form the source UE device.

Abstract: An origination device transmits a “received data signal” to a signal forwarding device. The “received data signal” comprises a first set of data. The origination device also transmits at least one “received control signal” to the signal forwarding device and to a destination device. The at least one “received control signal” comprises a first set of control information and a second set of control information. The first and second sets of control information are both associated with the first set of data. The first set of control information contains instructions pertaining to the signal forwarding device processing the first set of data. The second set of control information contains instructions pertaining to the destination device processing the first set of data. The signal forwarding device transmits a “forwarded signal” to the destination device. The “forwarded signal” contains forwarded data, based on the first set of data.

Abstract: A neighboring cell determines that uplink interference from an unmanned aerial vehicle (UAV) exceeds a first threshold at the neighboring cell. The neighboring cell transmits an uplink interference indicator to the UAV. In some examples, the UAV informs its serving cell of the uplink interference experienced by the neighboring cell. The serving cell can utilize information received from the UAV to make handover decisions or scheduling decisions for the UAV that caused the uplink interference. In other examples, the UAV can temporarily refrain from transmitting on at least some of its uplink resources or utilize different uplink resources for uplink data transmissions. In still other examples, the UAV can utilize downlink measurements to select which neighboring base station System Information Block messages should be monitored for an uplink interference indicator.

Abstract: The methods and systems discussed herein describe a first wireless communication device receiving reservation signals from two other wireless communication devices, each reservation signal identifying one or more time-slots reserved for data transmissions and a data priority level associated with the data transmissions. When the first wireless communication device determines that the reservation signals have at least one common identified time-slot, the first wireless communication device transmits a forwarded reservation signal, which identifies the time-slots reserved by the wireless communication device with the higher data priority level, to the wireless communication device with a lower data priority level. The wireless communication device that receives the forwarded reservation signal determines whether to transmit data during the time-slots identified in the forwarded reservation signal.

Abstract: A remote user equipment (UE) device receives a sidelink (SL) discovery message from each of a plurality of candidate relay UE devices where each SL discovery message is transmitted using a discovery resource of a discovery resource pool of a plurality of discovery resource pools. Each discovery resource pool is allocated to a range of Reference Signals Received Power (RSRP) levels. Each relay UE device measures an RSRP level of a link to a destination and transmits the SL discovery message using a discovery resource from the discovery pool associated with the RSRP range containing the measured RSRP level. The remote UE device selects (or reselects) a relay UE device from the candidates based, at least partially, on the RSRP ranges of the links from the candidate relay devices to the destination.

Abstract: A neighboring cell determines that uplink interference from an unmanned aerial vehicle (UAV) exceeds a first threshold at the neighboring cell. The neighboring cell transmits an uplink interference indicator to the UAV. In some examples, the UAV informs its serving cell of the uplink interference experienced by the neighboring cell. The serving cell can utilize information received from the UAV to make handover decisions or scheduling decisions for the UAV that caused the uplink interference. In other examples, the UAV can temporarily refrain from transmitting on at least some of its uplink resources or utilize different uplink resources for uplink data transmissions. In still other examples, the UAV can utilize downlink measurements to select which neighboring base station System Information Block messages should be monitored for an uplink interference indicator.

Abstract: A source user equipment (UE) device receives a neighbor list from each of a plurality of neighbor UE devices where each neighbor list identifies proximate UE devices that are within communication range of the neighbor UE device transmitting the neighbor list. The source UE device selects, from the plurality of neighbor UE devices, at least one candidate relay device for relaying destination device data to a destination UE device. The selection is at least partially based on the received neighbor lists. The destination device data and a relay indicator are transmitted to the at least one candidate relay device where the indicator indicates that the at least one candidate device is to transmit the destination device data to the destination UE device.

Abstract: A source user equipment (UE) device receives a neighbor list from each of a plurality of neighbor UE devices where each neighbor list identifies proximate UE devices that are within communication range of the neighbor UE device transmitting the neighbor list and including link information indicating a link quality of a communication link between the neighbor UE device and each proximate UE device in the neighbor list. The source UE device selects, from the plurality of neighbor UE devices, at least one candidate relay device for relaying destination device data to a destination UE device where the selection is at least partially based on the link quality information in the neighbor lists. The destination device data and a relay indicator are transmitted to the at least one candidate relay device. The indicator indicates that the at least one candidate device is to transmit the destination device data to the destination UE device.

Abstract: A relay (UE) receives, from a source UE device, a source transmission comprising destination device data and a relay indicator indicating that the destination device data is to be transmitted to a destination UE device. The relay UE device determines whether other communication data is pending transmission to another UE device over a device-to-device communication link. If other communication data is pending transmission, the relay UE device determines whether a destination data priority level of the destination device data is greater than another data priority level of the other communication data. The destination device data is transmitted to the destination UE device in accordance with the priority levels.

Abstract: A relay user equipment (UE) device transmits selected system information in a sidelink discovery message where the selected system information is a subset of system information received from a cell at the relay UE device. A remote UE device receiving the sidelink discovery message with the selected system information obtains at least system information for accessing the cell where such system information may not be available directly from the cell. The remote UE receiving select system information from each of a plurality of candidate relay UE devices manages relay selection/reselection at least partially based on the selected system information.

Abstract: An embodiment provides a communication control method in a mobile communication system including a first user equipment and a second user equipment. The first user equipment and the second user equipment communicate wirelessly with each other by sidelink communication. The communication control method includes, by the first user equipment in a PC5-Radio Resource Control (RRC) connected state with the second user equipment, measuring a channel utilization of a radio resource used for the sidelink communication and transmitting the measured channel utilization to the second user equipment. Furthermore, the communication control method includes receiving, by the second user equipment, the channel utilization.

Abstract: A communication control method used in a cellular communication system includes transmitting, by a relay user equipment having a capability of relaying data of a remote user equipment, a message including information related to the relay user equipment, receiving, by the remote user equipment, the message, and performing, by the remote user equipment, processing that establishes sidelink connection between the remote user equipment and the relay user equipment, based on the message.