Various solutions for beam utilization management in in non-terrestrial network (NTN) communications are described. An apparatus (e.g., a UE) obtains a duty cycle configuration with respect to a duty cycle of one or more beams of a set of beams of a cell in NTN communications. The apparatus then performs a task according to the duty cycle configuration.

Systems, methods, apparatuses, and computer program products for dynamic cell-specific delay for timing scaling in a non-terrestrial network (NTN). For example, certain embodiments may utilize a cell-common delay composed of FL and part of SL (until a cell-specific reference surface). A network node (e.g., a gNB) may calculate the cell-common delay as a function of time (T_c(t)) and may provide this function to the UEs (the satellite path may beis deterministic). The function of time may be a combination of two functions representing the FL and SL. The function can may be broadcasted in a system information block (SIB) or transmitted directly to the UE through radio resource control (RRC) signaling when it becomes active, is handed over, and/or regularly updated.

An efficient return channel spectrum utilization technique for communication systems supporting adaptive spread spectrum. Requests for bandwidth allocation using a spread factor are analyzed to determine if there are any channels capable of supporting the spread factor. The request is acknowledged if at least one channel is capable of supporting the request. Adjacent channels required to accommodate the requested spread factor are reserved, and additional bandwidth requests are allocated on non-reserved channels.

Schedulers that allocate resource grants on a slot-by-slot basis within a scheduling epoch or frame can create a front-loading effect where allocations occur more frequently in slots earlier in frames. To address these and other issues, systems and methods are disclosed for scheduling resource grants in a network to improve network transmit power profiles. For example, a scheduler is configured to randomize the order of slots in a scheduling epoch or frame, with different randomizations for different schedulers, to more evenly distribute slots with resource grant allocations to prevent or reduce a front-loading effect. As another example, the scheduler is configured to randomize start times of resource blocks within a slot to prevent or reduce the front-loading effect.

A communication system including a UE, a base station, and a PLMN is disclosed. The UE may access a radio cell supported by a communication satellite. The UE may select a preferred PLMN for each of multiple potential geographic locations of the UE. The UE may transmit, to the base station via the radio cell and the communication satellite, an indication of the preferred PLMN for each of the multiple potential geographic locations of the UE. The base station may attempt to determine a current geographic location of the UE. The base station may determine a serving PLMN as the preferred PLMN for the current geographic location of the UE and may later determine a second PLMN if the current geographic location changes. The base station determination may not be visible to the UE which may reduce UE signaling and resource usage.

The present disclosure relates to an electronic device, a distributed unit device, a wireless communication method, and a storage medium. The electronic device of the present disclosure comprises a processing circuit, configured to: receive a space radiation parameter related to a space radiation feature of a transmit antenna of a user equipment; and determine, according to the space radiation parameter of the user equipment, whether an uplink signal from the user equipment causes interference on other electronic devices. By using the electronic device, the distributed unit device, the wireless communication method, and the storage medium according to the present disclosure, interference on other satellite devices by an uplink signal from a user equipment to a satellite device which provides service for the user equipment can be eliminated or avoided.

A method for accommodating communication between a personal communication device and a satellite communication system includes identifying likely positions of one or more satellites and determining an orientation position of the personal communication device to potentially facilitate a wireless communication connection between the personal communication device and at least one satellite. The orientation position may be provided at a graphical user interface of the personal communication device. A signal received from the satellite may be detected and a determination may be made whether the satellite is capable of establishing the wireless communication connection between the personal communication device and the satellite.

A Satellite Radio Access Network includes a base station for communicating with standard compliant user equipment (UE) via a satellite having a field of view. A network broadcasting signal is provided via an inactive or access beam covering a plurality of cells in the field of view. An access request is detected from a user device, such as a smartphone, within an area covered by the inactive beam. In response to the access request, a beam is transitioned from inactive to active to provide network access to the user device. Once the user device is out of range, the active beam is transitioned back to an inactive beam. An inactivity timer is used to detect an idle active cell that should be transitioned to an inactive cell.

A wireless device receives, from a base station, access network information. The wireless device determines, based on the access network information, an access network type. The wireless device selects, based on the access network type, a non-access stratum (NAS) period value from between a first NAS period value associated with a terrestrial network (TN) access network type; and a second NAS period value associated with a geostationary earth orbit (GEO) access network type. The wireless device sends, to an access and mobility management function (AMF), a first NAS request message. The wireless device starts, based on the sending the first NAS request message, a NAS period using the NAS period value.

A method and apparatus is disclosed to restrict the delivery of video, audio, and/or data to unauthorized end users in a satellite communications system. The satellite communications system includes one or more satellite receiving antennas, commonly referred to as a satellite dish, to receive downlink communications signals from one or more satellites. The transmission received by the one or more satellite receiving antennas is converted by an outdoor unit (ODU) for transmission to one or more indoor units (IDUs). The ODU receives control information from one or more satellites from the downlink communications signals, commonly referred to as in-band, and/or from out-of-band communications signals. The ODU may use the control information to restrict access to one or more communications channels embedded within the downlink communications signals to the unauthorized end users.