Abstract: Example embodiments of the present disclosure relate to adjustment of contention window (CW) for listen before talk (LBT). A device determines a target size of a contention window for listen before talk at least in part based on at least one of a first metric and a second metric. The first metric indicates a level of intra-system activity of one of the plurality of systems. The second metric indicates a level of inter-system activity of the plurality of systems. The at least one of first and second metrics are determined by the device based on one or more messages in a set of resources shared by a plurality of systems. This solution enables the device to adjust the LBT by determining the target size of the contention window. By doing so, the device may determine an appropriate size of the contention window even when HARQ feedback is not available. In this way, a system may be able to coexist fairly with other systems in unlicensed spectrum.

Abstract: Embodiments of the present disclosure relate to communication in sidelink positioning. According to one aspect of the present disclosure, a second device generates a second PRS for positioning of a first device by using a set of second devices including the second device and transmits the second PRS to the first device. The first device communicates with the set of second devices via a sidelink interface. The second PRS is at least transmitted over a bandwidth occupied by a second set of sidelink data channels from the set of second devices to the first device in a time slot. In this way, an improved transmission of PRS from a supporting device is achieved, and efficient and low latency sidelink based ranging/positioning is allowed.

Abstract: A method for in-X subnetwork includes obtaining, from a third device in a second network, resource configuration supporting communication between a first device and a second device in the first network, the communication including more than one traffic type, wherein the more than one traffic type is for data transmission between the first device and the second device without involving the third device, and a second traffic type of the more than one traffic type is for data transmission between the second device and the third device via the first device; determining, based at least on the resource configuration and the more than one traffic type, at least one resource pool to be used for the communication between the first device and the second device; and transmitting, to the second device, information indicative of the at least one resource pool.

Abstract: Embodiments of the present disclosure relate to fallback behavior for sounding reference signal (SRS) transmissions. According to embodiments of the present disclosure, a terminal device determines an activation/deactivation on the configured SRS resource in radio resource control (RRC)_INACTIVE state and behaviours of the terminal device depend on the activation/deactivation. In this way, it improves positioning accuracy for terminal devices in RRC-INACTIVE state. Additionally, it can also improve power consumption efficiency by avoiding unnecessary power consumption of the terminal device.

Abstract: Embodiments of the present disclosure relate to methods, devices, apparatuses and computer readable storage media for multi-cell positioning. In example embodiments, a method is provided. The method comprises transmitting, from a first network device, a first reference signal to a terminal device served by a second network device. The method further comprises receiving a second reference signal from the second network device. The method further comprises determining a first time difference between a time at which the first RS is transmitted and a time at which the second reference signal is received. In addition, the method comprises transmitting information on the first time difference to a location server. As such, the location server can determine positioning information about the terminal device.

Abstract: An alternating electric field-driven gallium nitride (GaN)-based nano-light-emitting diode (nanoLED) structure with an electric field enhancement effect is provided. The GaN-based nanoLED structure forms a nanopillar structure that runs through an indium tin oxide (ITO) layer, a p-type GaN layer, a multiple quantum well (MQW) active layer and an n-type GaN layer and reaches a GaN buffer layer; and the nanopillar structure has a cross-sectional area that is smallest at the MQW active layer and gradually increases towards two ends of a nanopillar, forming a pillar structure with a thin middle and two thick ends. The shape of the GaN-based nanopillar improves the electric field strength within the QW layer in the alternating electric field environment and increases the current density in the QW region of the nanopillar structure under current driving, forming strong electric field gain and current gain, thereby improving the luminous efficiency of the device.

Abstract: Method, apparatuses, and computer program product for providing an efficient receiver beam selection scheme during positioning which utilizes the uplink (UL). One method may include creating a group of user equipment with one or more user equipment according to user equipment characteristics. The method may also include assigning a group identification for the group of user equipments. The method may further include assigning an anchor user equipment for the group of user equipments.

Abstract: Embodiments of the present disclosure relate to methods, devices, apparatuses, and computer readable medium for positioning measurement report. The method comprises: performing, at a first device and based on a set of measurement parameters, positioning measurements: and reporting, at a reporting instance and to a second device, a first part of the positioning measurements with an indication regarding whether or not the first part of the positioning measurements is to be jointly utilized with a second part of the positioning measurements to estimate a location of the first device, the second part of the positioning measurements being previously reported to the second device. In this way, the UE is capable of providing assistant information about location change, which may in turn improve the positioning accuracy. In addition, unnecessary measurements on all the PRS resources can be avoided, thus such a reporting mechanism can reduce power consumption at the UE.

Abstract: A correction method for a scatter signal caused by a wedge filter includes: S10: performing an air scan by using CT equipment, and calculating a relative intensity Wair of a scatter signal caused by a wedge filter in the air scan according to an air scan result, S20: performing an object scan on a plurality of experimental objects by using the CT equipment, and calculating theoretical scatter signal intensities Wtheo of the experimental objects in the object scan in combination with the result of S10, S30: fitting Wtheo of the experimental objects in the object scan and scatter signal intensity estimations Wact of the experimental objects in the object scan, and S40: correcting the scan results according to a difference between a scatter signal intensity estimation Wact of an actual object in the object scan and a theoretical scatter signal intensity Wtheo of the actual object in the object scan.

Abstract: Provided is a polymorph and application of a pyrimidine derivative and a pharmaceutically acceptable salt thereof. The polymorph and application of the pyrimidine derivative that is an A2A/A2B dual receptor antagonist having the chemical name 3-(4-amino-5-fluoro-6-(1-((6-(2-hydroxypropan-2-yl)pyridin-2-yl)methyl)-1H-1,2,3-triazol-4-yl)pyrimidine-2-yl)-2-methylbenzonitrile and the pharmaceutically acceptable salt thereof.

Abstract: Methods, devices, and systems for establishing a geofence for a Non-Public Network (NPN) using an Embedded Subscriber Identity Module (eSIM) associated with the NPN. The method includes receiving, by a receiver of a User Equipment (UE), an eSIM associated with an NPN, where the eSIM includes geofencing data. The UE performs wireless communication using the NPN when the UE is within an area defined by the geofencing data.

Abstract: A method for determining a longitudinal position of a combined phantom, a computer readable storage medium, and a CT device. The method includes: scanning the combined phantom to obtain a topogram thereof. The combined phantom is fixed to a table top, protrudes beyond the table top, is axially parallel to the longitudinal direction, and includes a plurality of phantoms, one of which is a slice phantom. The method further includes identifying the plurality of phantoms on the topogram, and using an axial center of the slice phantom as the longitudinal position of the combined phantom. The longitudinal position is determined by using the topogram of the combined phantom, and a phantom position is aligned automatically.

Abstract: Disclosed are example embodiments of methods and devices for switching between measurement gap and measurement gap-less reception of positioning reference signals. An example embodiment provides user equipment comprising at least one processor and at least one memory including computer program code stored therein. The at least one memory and the computer program code may be configured to, with the at least one processor, cause the user equipment to receive positioning reference signals in a measurement gap-less mode, transmit a first request of switching to a measurement gap mode to a base station and/or a location server, receive a first switching request response from the base station, and receive the positioning reference signals in the measurement gap mode when the first switching request response indicates that the first switching request is approved.

Abstract: Embodiments are directed to managing data. A data model that includes data type nodes and relationship edges may be provided. Other data types and other data type relationships may be provided and included in the data model. If a portion of the nodes in the data model may be downstream of leaf nodes in the graphlet: the data model may be traversed to visit the downstream nodes; shortcut edges may be generated to each downstream node associated with shortcut nodes. If a second portion of the nodes in the data model may be upstream of the leaf nodes: the data model may be traversed upwards from the leaf nodes; other shortcut edges may be generated to each node visited in the upwards traversal associated with shortcut nodes.

Abstract: Embodiments of the present disclosure relate to bit reduction in resource information. According to embodiments of the present disclosure, the number of bits to indicate the resource allocation is reduced and the network device generate the control information based on an offset associated with the bit reduction. In this way, multiple transmission opportunities for the transmission of Msg3 of the random access procedure are provided without increasing the signaling overhead.

Abstract: Embodiments of the present disclosure relate to methods, devices, apparatuses and computer readable storage media for multi-cell positioning. In example embodiments, a method is provided. The method includes transmitting, from a first network device, a first reference signal to a terminal device served by a second network device. The method further includes receiving a second reference signal from the second network device. The method further includes determining a first time difference between a time at which the first RS is transmitted and a time at which the second reference signal is received. In addition, the method includes transmitting information on the first time difference to a location server. As such, the location server can determine positioning information about the terminal device.

Abstract: Systems, methods, apparatuses, and computer program products for a multi-stage positioning reference signal (PRS) mechanism for downlink angle of departure (DL-AoD) positioning.

Abstract: According to embodiments of the present disclosure, a first device determines one or more second devices to share a channel occupancy time (COT) for a sidelink transmission over an unlicensed spectrum bands. The first device transmits the information which indicates the COT to be shared by the first device and the one or more second devices. The second device determines a transmission gap within the COT and performs a LBT/CCA on the unlicensed spectrum bands based on the determined gap. In this way, it achieves sharing the COT among SL devices. It can improve spectrum efficiency and avoid resource waste.

Abstract: Embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media of channel access procedure based on the channel access priority class (CAPC). The method comprises receiving scheduling information from a second device, the scheduling information at least indicating resources allocated for a transmission from the first device to the second device, a channel access type for the transmission and an expected access priority for the transmission. The method further comprises comparing the expected access priority with an access priority of data in a buffer of the first device and determining use of the resources based on the comparison. In this way, the Channel Occupancy Time (COT) sharing can be used only for the data with higher or equal priority to avoid unintended usage of the grant on unlicensed band and coexistence fairness among nodes with different types of traffic to be transmitted may be achieved.

Abstract: A method comprises configuring, by a base station, a device with a first mode of performing random access procedure. The method includes configuring the device with a second mode of performing random access procedure. The device is configured to access either the first mode of performing random access procedure or the second mode of performing random access procedure. The method also includes configuring an availability of the second mode of performing random access procedure.