Abstract: A network node determines a voltage response characteristic of the battery in a low powered user equipment and controls the activity pattern of the user equipment to align its activity pattern with the voltage response characteristic of the battery to extend the useful life of the battery in the user equipment.

Abstract: This disclosure describes systems, methods, and devices related to optical proximity corrections to an integrated circuit photomask. A method may include identifying a first contour of a first adjacent polygon of a photomask predicted for a first polygon of an integrated circuit, the first contour excluding a first corner formed by a first edge and a second edge of the first polygon; identifying a second contour of a second adjacent polygon of a photomask predicted for a second polygon of the integrated circuit, the second contour excluding a second corner formed by a third edge and a fourth edge of the second polygon; generating a fast contour prediction based on corner rounding associated with the first contour and the second contour; and generating, based on the fast contour prediction, a minimum distance between the first contour and the second contour, the minimum distance associated with the optical proximity corrections.

Abstract: A network node of a wireless communication network provides information to a User Equipment (UE) that allows the UE to adapt it radio measurements with respect to the network, to account for “link changes.” Link changes are service-link and/or feeder-link changes arising from motion by the satellite(s) included in the Radio Access Network (RAN) portion of the network. The UE uses the provided information to adapt its radio measurements in conjunction with the link changes. Among the several advantages of accounting for satellite link changes in the manner contemplated are any one or more of reduced signaling going between the UE and the network, reduced battery consumption at the UE, mitigation of the effects of the link changes on the radio measurements, avoidance of spurious measurements, and an effective “automation” of the timed changeover by the UE to new measurement configurations, coincident with the occurrence of link changes.

Abstract: A method performed by a user equipment, UE, is provided. The method comprises detecting that the UE has lost navigation system coverage partially or wholly. The method further comprises, after the detection, transmitting towards a network node a loss notification indicating that the UE has the lost navigation system coverage.

Abstract: Systems and methods are disclosed herein for frequency adjustment in a wireless network, particularly a Non-Terrestrial Network (NTN). Embodiments of a method performed by a User Equipment (UE) are disclosed. In one embodiment, a method performed by a UE for compensating for a Doppler shift in a wireless network comprises obtaining, from a network node, a characterization of Doppler variations in a particular cell. The method further comprises tuning a local frequency reference fRef, of the UE to a received downlink frequency for the particular cell and adjusting the local frequency reference fRef, over time according to the pre-calculated characterization of Doppler variations in the particular cell. In this manner, the communication between the UE and the network node in the presence of large and varying Doppler shifts is enabled. Embodiments related to compensating for timing drift are also disclosed.

Abstract: The present disclosure provides a method (1300) in a network device. The method (1300) includes: determining (s1310) a RACH configuration according to at least one random access procedure, wherein the RACH configuration comprises a preamble mapping indication indicating mapping of RACH preambles to SSBs and a SSB mapping indication indicating mapping of SSBs to ROs; transmitting (s1320) the RACH configuration; and receiving (s1330) a RACH preamble which is transmitted according to the RACH configuration from a terminal device.

Abstract: Systems and methods are disclosed herein for coordinated uplink transmission. In one embodiment, a method performed by a wireless communication device comprises obtaining a configuration of a plurality of sets of resources for cooperative uplink transmission. The plurality of sets of resources comprises N sets of resources that are mapped to N possible data elements that can be communicated by a cooperative uplink transmission by a group of two or more wireless devices including the wireless communication device. N is an integer number that is greater than or equal to 2. The method further comprises transmitting a transmission using at least a subset of a particular set of resources from among the N sets of resources that is mapped to a particular data element from among the N possible data elements that is to be communicated by the wireless communication device for the cooperative uplink transmission.

Abstract: According to some embodiments, a method performed by a network node for mobility management comprises obtaining data samples for modeling a wireless network environment that comprises a plurality of cells and building a machine learning model of the wireless network using the obtained data samples. The machine learning model is trained to determine a sequence of handovers for a wireless device among the plurality of cells for the wireless device to traverse from a source cell to a destination cell. The method further comprises receiving mobility information for a wireless device, determining one or more handover operations for the wireless device based on the mobility information, and transmitting the one or more handover operations to the wireless device.

Abstract: A method including receiving handover information associated with an execution of a handover and performing at least one operation of the handover based on the handover information. The handover information includes at least one of: a time offset; information for generating a time offset; an absolute time for executing the handover or for accessing the target cell; a condition to be fulfilled before execution of the handover; information associated with ephemeris data of a satellite serving the target cell; information associated with an upcoming service link switch or feeder link switch; information associated with a timing advance; a physical random access channel resource; an indication to execute a preconfigured handover command; an identifier associated with a preconfigured handover command; an indication for disabling fallback to a source cell; and a parameter for determining a quality of the source cell for fallback to the source cell.

Abstract: A method by a wireless device includes receiving, from a network node, data associated with the airborne or spaceborne system. The data includes satellite ephemeris data and a validity duration for the ephemeris data.

Abstract: A communication device can be configured to operate in a non-terrestrial network that includes a network node communicatively coupled to the communication device via a satellite. The communication device can determine when to perform an access offset determination (“AOD”) relative to a paging occasion (“PO”).

Abstract: A method and apparatus for design and optimization of a network are described. A first deep neural network is used to obtain a function that represents a relationship between design parameters of the network and network performance metrics of the network. A second deep neural network is used to obtain a subset of one or more candidate network deployment configurations that optimize the performance metrics for the network. An optimal candidate network deployment configuration for the network is selected from the subset of candidate network deployment configurations wherein the optimal candidate network deployment configuration maximizes performance of the network as defined based on the performance metrics.

Abstract: A wireless device is operable to communicate with a network node of a communications network via a non-terrestrial communication path that includes satellites and satellite gateways. The wireless device determines that communication between the wireless device and the network node will experience a communication interrupting transition during a transition period in which the non-terrestrial communication path between the wireless device and the network node will be interrupted. The wireless device adjusts a PHY layer procedure of the wireless device to mitigate switching problems with one of the of satellites during and/or after the interruption.

Abstract: In one embodiment, a method implemented in a wireless device, WD, includes receiving at least one first random access, RA, indicator that indicates information relating to a non-terrestrial network, NTN, access; and determining a random access, RA, based at least in part on the at least one first RA indicator. In one embodiment, a method implemented by a network node includes sending at least one first random access, RA, indicator that indicates information relating to a non-terrestrial network, NTN, access; and allowing the WD to perform a random access, RA, that is based at least in part on the at least one first RA indicator.

Abstract: A method performed by a wireless device for a Synchronization Signal Block Measurement Time Configuration (SMTC) window and measurement gap configuration includes receiving at least one configuration parameter for the SMTC window and/or a measurement gap from a network. The wireless device performs an adjustment of the SMTC window and/or the measurement gap based on the at least one configuration parameter and transmits the adjustment to the network. The wireless device measures at least one synchronization signal based on the adjustment to the SMTC window and/or the measurement gap.

Abstract: Systems and methods of the present disclosure are directed to Physical Random Access Channel (PRACH) over NTN (Non-Terrestrial-Networks). For example, a method performed by a wireless communication device for random access includes determining one or more random access occasions for transmission of a random access channel. The method includes transmitting the random access channel on the determined one or more random access occasions.

Abstract: Methods and apparatuses are disclosed for communicating to a wireless device (WD) a DL-to-UL frequency offset (or frequency shift) that may need to be applied. For example, a method implemented in a wireless device (WD) is provided. The method comprises: receiving, from the network node, an indication of a frequency offset; and applying the received frequency offset; wherein the WD is configured to operate on a narrow-band Internet of Things (NB-IoT) carrier in a New Radio (NR) carrier.

Abstract: A method (1200) performed by a wireless device (110) includes obtaining a remaining service time (Tservice) associated with a first satellite or first spot beam. Based on the remaining service time, the wireless device determines whether to initiate a connection with the first satellite or first spot beam.

Abstract: Techniques for dynamic adjustment of the frequency offset and timing advance for a UE in a non-terrestrial (NTN) are described. Details of Medium Access Control (MAC) Control Element (CE) and Downlink Control Information (DCI) based methods for indicating the timing and/or frequency adjustment commands either separately or jointly in the presence of delay and/or Doppler variations in NTN are provided. A terminal, also known as a user equipment (UE), can use DCI or MAC signaling to update the timing and frequency adjustment in presence of delay and Doppler variations in NTN. Further, a configurable MAC-CE design is provided for indicating commands related to timing and/or frequency adjustment. Procedures are also provided to report, during a random access procedure, the timing and frequency adjustment applied in preamble transmission.

Abstract: Embodiments include methods for operating a user equipment (UE) in a non-terrestrial network (NTN) that utilizes one or more polarization modes for serving one or more cells. Such methods include sending, to a network node, an indication of one or more polarization capabilities of the UE. Such methods also include transmitting and/or receiving one or more signals or channels in a first cell of the NTN according to the indicated polarization capabilities of the UE. In some embodiments, the indicated polarization capabilities of the UE include: a UE type; one or more polarization modes supported by the UE; a polarization correspondence between uplink and downlink signals that is supported by the UE; and/or a list of antenna panels supported by the UE and polarization modes supported by the antenna panels. Other embodiments include complementary methods for operating network nodes, and UEs and network nodes configured to perform such methods.