Certain aspects of the present disclosure provide techniques for communicating user equipment (UE) capability information in wireless communication networks. An exemplary method performed by a UE includes receiving, from a network entity, a request for capability of the UE and transmitting, in response to the request, a UE capability message that differentiates sets of features the UE supports in different network types.

The present invention relates to an electronic device, a wireless communication method, and a computer readable medium. The electronic device for wireless communication according to one embodiment comprises a processing circuit. The processing circuit is configured to determine, according to the capability of a user equipment and/or a channel situation between the user equipment and a base station for non-terrestrial network communication, an uplink transmission mode for the user equipment from two or more uplink transmission modes respectively corresponding to different acquisition manners of an uplink transmission parameter. The processing circuit is further configured to perform control so as to perform uplink transmission from the user equipment to the base station on the basis of the determined uplink transmission mode.

A method includes receiving, by a central device over a wireless communication link, a first advertising packet from a first satellite device; receiving, by the central device over the wireless communication link, a second advertising packet from a second satellite device; determining a first location of the first satellite device responsive to a first wireless localization value of the first advertising packet; and assigning, by the central device, a first network address to the first satellite device responsive to the determined first location.

An earth station transmitter device is arranged for generating a signal to be transmitted to a plurality of earth station receiver devices of a satellite communication system. The device includes a plurality of shapers, such that each shaper is arranged for shaping for data traffic to a different subset of earth station receiver devices a symbol rate; a modulator includes a time slice selector arranged for receiving and storing the groups of time slices outputted by the plurality of shaping means; and a controller is adapted to monitor the modulator and to convey to at least one of the shaping means based on the monitoring an update of the symbol rate shaped by the at least one shaping means.

This disclosure describes a secure protocol for communication over a satellite network. On receiving a message from a mobile device that is currently not authorized to communicate over a satellite network, a gateway analyzes the message to determine whether the message includes a particular tag to indicate an authorization override. A message with a tag indicating an emergency message can be forwarded toward an emergency service provider determined based on the current location of the mobile device. A message with a tag indicating a subscription request can cause the gateway to generate and send subscription information to the mobile device, to allow the user to select a subscription and provide payment information to activate the subscription. In either scenario, a secure connection can be established between mobile device and gateway, through a handshake that employs burst messages over the satellite network.

An access control method and a terminal device are provided, which can implement effective random access in an NTN system. The method includes: a terminal device determines a target time advance (TA) in a plurality of TAs according to first information, where the first information is associated with an SSB received by the terminal device and/or is associated with an area where the terminal device is located; and the terminal device sends a first message in a random access procedure to a network device according to the target TA.

A system includes a satellite communications terminal including a computer programmed to provide communications for user devices with a destination network. The computer detects a physical state or change in a physical state specified as a trigger to transfer the communications for the user devices with the destination network from a satellite communications channel to a cellular communications channel. Upon detecting the trigger event, the computer establishes a communications link with a cellular device and provides communications for the user devices with the destination network via the cellular device and the cellular communications channel.

A positioning server is configured to determine a set of anchor points to be used in a positioning method for a user equipment, wherein each of the anchor points is associated with a type of anchor point comprising a terrestrial type or a non-terrestrial type, select a subset of the set of anchor points based on the types of the anchor points, select one anchor point from the subset of anchor points as a reference anchor point based on an expected quality of a positioning reference signal (PRS) transmission received from the anchor point, transmit to the UE a PRS configuration for each of the anchor points and indicating to the UE the reference anchor point and instruct each of the anchor points to transmit respective PRSs in accordance with the PRS configuration.

A system and method for scheduling a variable stayout distance when beam hopping, the method including providing an illumination area of a satellite and candidate beam centers disposed in the illumination area; measuring a respective scan angle from an antenna boresight to a respective beam center of the candidate beam centers; and determining a reuse factor k for each of the candidate beam centers, based on a proportion of the respective scan angle to a maximum scan angle. Each candidate beam center may be processed sequentially. Prior to adding each candidate beam center to a current beam center set, checking whether a candidate beam center meets the stayout distance criteria from all beam centers already in the beam center set.

A method and a user equipment (UE) for timing alignment is provided. The method comprises receiving, from a Base Station (BS), a first configuration indicating at least one of a scheduling offset, a common Timing Advance (TA), and satellite ephemeris information; receiving, from the BS, a second configuration indicating a TA offset for a TA variable; determining a UE-specific TA based on the satellite ephemeris information; determining a total TA based on at least one of the TA variable, the TA offset for the TA variable, the common TA, and the UE-specific TA; and starting, from a transmission by the UE, a time window after an additional time based on the total TA and the scheduling offset.