Abstract: Embodiments of the present disclosure relate to methods, devices, apparatuses, and computer readable medium of enhancements on uplink transmission. The method comprises: transmitting, to a second device, a first group of transmission repetitions based on first uplink synchronization information: prior to transmitting a second group of transmission repetitions, determining second uplink synchronization information based on system broadcast information for deriving transmission compensation in at least one of time domain and frequency domain; and transmitting, to the second device and based on the second uplink synchronization information, the second group of transmission repetitions. The method helps guarantee the effective receipt of uplink repetitions with compensation jump in time or frequency domain or update due to changing of uplink synchronization information.

Abstract: A terminal device, initially, maintains, in at least one memory, a configuration for a Radio Resource Control, RRC, inactive state. The configuration includes information on a radio access network notification area, RNA. The terminal device, then, acquires information on an expected latency of incoming RRC messages within the RNA. In response to triggering a RRC connection resume procedure, the terminal device performs the following: First, the terminal device transmits a RRC connection resume request to a target access node and starts a timer defined based on the expected latency. In response to the timer expiring, the terminal device initiates monitoring of incoming RRC messages. In response to receiving a RRC connection resume message, the terminal device initiates the RRC connected state.

Abstract: A method, apparatus, and computer program product are provided. In the context of a method, the method receives, from a network node, a message indicating a plurality of physical random access channel configurations and at least one relative location threshold. The message determines, based on comparing a relative location of the user equipment to the relative location threshold, a selected physical random access channel configuration out of the plurality of physical random access channel configurations. The method performs a random access procedure based on the selected physical random access channel configuration.

Abstract: According to an example embodiment, a client device comprises at least one processor and at least one memory including computer program code. The at least one memory and the computer program code may be configured to, with the at least one processor, cause the client device to: receive a measurement configuration from a first network node device, receive a preconfigured condition for the measurement configuration from the first network node device, and in response to the preconfigured condition for the measurement configuration being fulfilled, use the measurement configuration. A client device, a network node device, methods, and computer programs are disclosed.

Abstract: Various example embodiments relate to a solution for non-terrestrial network communication. A user device for non-terrestrial network communication may be configured to determine that a connection to a non-terrestrial network having a discontinuous coverage is unavailable, the non-terrestrial network providing at least one cell serving the user device; obtain data relating to cell availability of the at least one cell; determine a backoff time associated with a subsequent non-terrestrial network search based at least partly on the data relating to cell availability; and initiate a cell search of the non-terrestrial network again after expiration of the backoff time.

Abstract: A method comprising: providing a user equipment (UE) with one or more restrictions, in addition to a timer, for limiting the UE to send on-demand System Information Block (SIB) requests regarding reference signal configurations for Radio Resource Control (RRC) Idle/Inactive UE mode; receiving an on-demand SIB request regarding reference signal configurations for RRC Idle/Inactive UE from the user equipment; and sending a reference signal configuration SIB to the user equipment.

Abstract: Various example embodiments relate to devices and methods for refining a coverage window for discontinuous coverage. A terminal device may comprise at least one processor and at least one memory including computer program code. The at least one memory and the computer program code may be configured to, with the at least one processor, cause the terminal device to perform actions including determining a coverage window for receiving transmission from a network device, monitoring radio coverage of the network device at least during the coverage window, and updating the coverage window based on when the radio coverage is available for the terminal device.

Abstract: Example embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media for conditional link synchronization in non-terrestrial networks. In example embodiments, a first device detects system broadcasted information, if there is data to be transmitted from the first device to the second device. Alternatively, the first device detects system broadcasted information if the first device receives a request for synchronization information from the second device. If the first device receives the system broadcasted information, it generates the synchronization information based on the system broadcasted information. Further, the first device transmits the synchronization information to the second device.

Abstract: Devices, methods and computer programs for timing advance variation compensation in wireless communications are disclosed Timing advance variation for a client device communicating with a network node device at least partially via an air/space born vehicle communication connection is determined based on measurements on uplink signaling from the client device. A timing advance compensation function curve from a set of predetermined timing advance compensation function curves is selected, such that the selected timing advance compensation function curve corresponds with the determined timing advance variation. An indication of the selected timing advance compensation function curve is signaled to the client device.

Abstract: There is provided an apparatus, said apparatus comprising means for determining which of at least two lower layer radio units co-located at a first location, each lower layer radio unit associated with a higher layer radio unit, has a best path to the associated higher layer radio unit and causing the transmit power of the determined one of the at least two lower layer radio units received at a user equipment to be higher relative to the transmit power of any of the other of the at least two lower layer radio units received at the user equipment.

Abstract: Various example embodiments relate to a solution for modifying mobility events by making them depend on information which captures a moving cell direction. A network node may obtain coverage information associated with a serving network and a target network. The network node may obtain synchronization signal timing data associated with the target network. The network node may determine time drift rate data for at least one user node based at least partly on location data and satellite ephemeris data. The network node may cause transmission of the time drift rate data associated with the time drift to the at least one user node to enable the user node to perform a measurement of a target cell of the target network using the time drift rate data. Nodes, methods, and computer programs are disclosed.

Abstract: An apparatus, comprising at least one processor, and at least one memory storing instructions, the at least one memory and the instructions configured to, with the at least one processor, cause a network device to transmit a first information characterizing a region associated with a wakeup signal to at least one terminal device.

Abstract: An apparatus, method and computer program is described comprising: determining, at a user device of a mobile communication system, one or more parameters of a serving cell and one or more target cells at a first time instance; and estimating one or more time delay metrics for each of the one or more target cells based on said parameters, such that an optimal time point for performing a handover can be determined. The time delay metrics comprise one or more of: a first time delay corresponding to a time period between the first time instance and a time instance at which a signal strength of the serving cell is predicted to match a signal strength of the respective target cell; and a second time delay corresponding to a time period between the first time instance and a time instance at which the signal strength of the respective target cell is predicted to be higher than the signal strength of the serving cell by an offset value.

Abstract: The present invention discloses an apparatus, for use by a cell in a non-terrestrial network, comprising means for performing transmitting, to a user equipment, information indicating ephemeris corresponding to the cell and information indicating ephemeris corresponding to at least one neighboring cell, wherein the neighboring cell is detectable at the user equipment when the user equipment is in coverage of said cell.

Abstract: Example embodiments generally relate to devices and methods for remapping of paging subgroups. A user equipment (UE) device may be configured to receive from a base station an explicit or implicit indication of remapping between one or more first scheme paging subgroups and one or more L1 paging subgroups, remap a first scheme paging subgroup of the UE device to a L1 paging subgroup based on the received indication of remapping, monitor for a paging early indication (PEI) from the base station including an indication of the remapped L1 paging subgroup, and receive a paging message from the base station based on the PEI.

Abstract: There is disclosed an apparatus comprising: means for receiving configuration information, the configuration information comprising at least one of a cell discontinuous transmission configuration or a network message configuration; means for performing a determination of at least one condition for monitoring for one or more network messages; and means for monitoring for one or more network messages, based at least in part on the configuration information and the determination of at least one condition.

Abstract: A method includes receiving, by a user equipment (UE), at least a first UE identity assigned to the user equipment for a wireless network, the first UE identity associated with a first paging timing; and receiving, by the user equipment, a second UE identity that has been assigned to the user equipment at least for paging purposes that adjusts a paging timing from a first paging timing associated with the first UE identity to a second paging timing associated with the second UE identity, wherein the second paging timing is different from the first paging timing.

Abstract: A method, apparatus and computer program product are provided for cell change assistance in a non-terrestrial network. NTN, with a plurality of moving cells served by at least one satellite. A network element of the NTN provides cell change assistance information to a user equipment, UE, for selecting at least one moving cell of the plurality of moving cells. The UE receives cell change assistance information for selecting a cell for cell change. The cell change assistance information identifies at least a subset of the plurality of moving cells and us indicative of a geometric layout of at least the subset of the plurality of moving cells.

Abstract: An apparatus, comprising at least one processor, and at least one memory storing instructions, the at least one memory and the instructions configured to, with the at least one processor, cause a network device, which provides a first radio cell, to transmit a first information characterizing a radio coverage of at least one further radio cell of at least one further network device, which at least temporarily and at least partially covers a neighbor area of the first radio cell.

Abstract: Devices, methods and computer programs for switching from a terrestrial cell to a non-terrestrial cell are disclosed. At least some example embodiments may allow switching a client device from a terrestrial cell to a non-terrestrial cell in such a way that the client device has time to prepare for the switch, and optionally perform tests related to a coverage of the non-terrestrial cell and inform a network node proposing the switch if the coverage is not sufficient. As a result, significant energy savings may be achieved on the network side, for example.