Abstract: Embodiments include a communication system including host computer, base station, and UE, and methods therein. The host computer provides user data and initiates a transmission carrying the user data to the UE via a cellular network comprising the base station. The UE receives, from the base station, an indication of an active bandwidth part (BWP), which is of size NBWP,1size in number of frequency-domain resource blocks (RBs). The UE receives an indication of one or more frequency-domain RBs assigned within the active BWP for carrying the user data. The indication is encoded based on a size NBWP,2size (<size NBWP,1size) of another BWP than the active BWP. The UE decodes the indication to obtain a starting virtual RB and a length of contiguously allocated RBs within the active BWP. The starting virtual RB is encoded with resolution K RBs, with K being based on a ratio of sizes NBWP,1size and NBWP,2size.

Abstract: Systems and methods for adapting a timer(s) for a satellite-based radio access network are disclosed. Embodiments of a method performed by a wireless device and corresponding embodiments of a wireless device are disclosed. In some embodiments, a method performed by a wireless device comprises obtaining a value to be used to offset, extend, and/or scale one or more timers related to the satellite-based radio access network relative to values for non-satellite-based radio access networks. The method further comprises utilizing the value to offset a start of one or more timers, extend one or more timers, and/or scale one or more timers and performing one or more actions based on the one or more offset timers, the one or more extended timers, and/or the one or more scaled timers. Embodiments of a method performed by a base station and corresponding embodiments of a base station are also disclosed.

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: Apparatuses, systems, and techniques to transmit configuration information. In at least one embodiment, a processor includes one or more circuits to wirelessly transmit reference signal configuration information corresponding to one or more reference signals.

Abstract: Apparatuses, systems, and techniques to select one or more beams to transmit signals. In at least one embodiment, a system includes one or more circuits to select one or more wireless signal beams based, at least in part, on measuring one or more received reference signals.

Abstract: Apparatuses, systems, and techniques to cause one or more neural networks to be trained. In at least one embodiment, a processor includes one or more circuits to cause one or more neural networks to be trained based, at least in part, on one or more capabilities.

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: A method (1000) performed by a wireless device (110) includes obtaining (1002) location information associated with the wireless device and/or ephemeris data for one or more satellite cells. The wireless device receives (1004) a measurement configuration to measure reference signals from the one or more satellite cells. The measurement configuration includes at least one measurement window. The wireless device determines (1006) whether to select a measurement window for the one or more satellite cells based on the location information associated with the wireless device and/or ephemeris data of the one or more satellite cells.

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: Apparatuses, systems, and techniques to generate reference signals based on configuration information. In at least one embodiment, a processor includes one or more circuits to generate one or more reference signals based, at least in part, on wirelessly transmitted reference signal configuration information.

Abstract: Apparatuses, systems, and techniques to use a schedule to cause wireless signal information to be transmitted. In at least one embodiment, a processor includes one or more circuits to use a schedule to cause wireless signal information to be transmitted repeatedly during a first period of time and to cause the wireless signal information to not be transmitted during a second period of time.

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 system and method for providing time domain allocations in a communication system. In an embodiment, an apparatus operable in a communication system and including processing circuitry is configured to receive an indication of a time domain allocation in downlink control information associated with a radio network temporary identifier (“RNTI”) identifying the apparatus, and employ the time domain allocation associated with the RNTI for transmissions associated with the apparatus. In another embodiment, an apparatus operable in a communication system and including processing circuitry is configured to associate a time domain allocation with a RNTI identifying a user equipment, and provide an indication of the time domain allocation in downlink control information to allow the user equipment to employ the time domain allocation associated with the RNTI for transmissions associated therewith.

Abstract: Various embodiments of the present disclosure provide methods and apparatuses for random access resource mapping in a non-terrestrial network (NTN). According to an embodiment, the method implemented at a network node in the NTN includes determining at least a first synchronization signal (SS)/physical broadcast channel (PBCH) block, SSB, group having one or more SSBs and a second SSB group having one or more SSBs; mapping a respective number of random access resources to the one or more SSBs in the first SSB group and the one or more SSBs in the second SSB group separately; and transmitting configuration information indicating the mapping of the respective number of random access resources to the one or more SSBs in the first SSB group and the one or more SSBs in the second SSB group.

Abstract: Embodiments include methods in a communication system including host computer, base station, and UE. The base station can send the UE an indication of an active bandwidth part (BWP) of a size NZBWP,1size frequency-domain resource blocks (RBs), and select frequency-domain RBs, within the active BWP, to be assigned for carrying the user data to the UE. The base station can encode an indication of the selected frequency-domain RB(s) represented by a starting virtual RB, RBstart, and a length of contiguously allocated RBs, LRBs, using a number of bits. The number is a plurality and related to a size NBWP,2size of another BWP than the active BWP. NBWP,2size is smaller than NBWP,1size. The starting virtual RB is encoded with a resolution of K RBs, with K determined based on a ratio of NBWP,1size and NBWP,2size. The base station can send the encoded indication to the UE via a downlink control channel.

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 method performed by a network node (160) includes serving a cell area by a first physical network node for a first time duration. The first physical network node uses an identifier of a logical network node. For a second time duration, the cell area is served by a second physical network node. The second physical network node uses the identifier of the logical network node. The first physical network node serves the cell area with a first frequency band and the second physical network node serves the cell area with a second frequency band.

Abstract: A method by a wireless device includes performing at least one measurement on at least one non-active bandwidth part (BWP) while the wireless device is in connected mode.

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”).