Provided is a satellite network communication method. The method includes: establishing for a user equipment a satellite network communication channel between a proxy service apparatus on an end station side and a proxy service apparatus on a master station side; intercepting a resource access request sent by the UE; and when a target resource corresponding to the resource access request does not locally exist, acquiring the target resource through the satellite network communication channel and sending the target resource to the user equipment. Further provided are a proxy service apparatus and a gateway.

A communication uplink between a UAV and a base station is established using frequency division duplex (FDD) communication and a communication downlink between the UAV and the base station using time division duplex (TDD) communication. A determination of whether the UAV is located above an antenna height threshold is then made. When the UAV is located above the antenna height threshold, the communication uplink is transitioned from using the FDD communication to using the TDD communication while the use of the TDD communication is continued for the communication downlink. When the UAV is located at or below the antenna height threshold, the use of the FDD communication is continued for the communication uplink and the TDD communication for the communication downlink.

A system and method for an adaptive network of network access nodes comprises a global network operations center (GNOC) receiving operator inputs and generating a global policy according to the operator inputs. The GNOC and/or a distributed network gateway (GW) generate configuration commands for configurations for at least one of the network access nodes based on the global policy, transmit the configuration commands to at least one of the network access nodes, and receive telemetry from at least one of the network access nodes. The distributed network GW transmits a summary of key performance indicators (KPIs) to the GNOC and the GNOC revises the global policy according to the summary of KPIs.

A network for providing high speed data communications may include multiple terrestrial transmission stations that are located within overlapping communications range and a mobile receiver station. The terrestrial transmission stations provide a continuous and uninterrupted high speed data communications link with the mobile receiver station employing a wireless radio access network protocol.

A method for determining a TA and a terminal device are provided. The method comprises operations as follows. A terminal device calculates a first TA value according to position information of the terminal device and ephemeris information of a satellite. The terminal device determines a second TA value according to the first TA value and a first adjustment value. The second TA value is used by the terminal device to perform uplink synchronization.

Satellites provide communication between devices such as user terminals (UTs) and ground stations that are in turn connected to points-of-presence (PoP) that connect to other networks, such as the Internet. Many factors affect latency for data passing between the PoP and the UT. The PoP accepts downstream data addressed to the UT and determines a target delivery window (TDW) indicating a window of time within which the downstream data is expected to be delivered. Communication resources are allocated to the downstream data based on the TDW. At subsequent points, such as at the ground station, the TDW is assessed to determine whether to continue sending the downstream data or to use a different communication resource. For example, a first ground station will forward the downstream data to a second ground station if the uplink will not be able to deliver the downstream data before expiration of the TDW.

Techniques for delivering data or information onto a vehicle and for delivering data off of a vehicle include a data distribution system having multiple interfaces that are fixedly connected to the vehicle, and that provide access to multiple types of data bearers connected to external networks. A bearer selector engine may select a particular data bearer for delivery of data based on a set of selection criteria, which may be indicated in a set of selection rules on-board the vehicle. The selection criteria may be based on bearer characteristics, data characteristics, vehicle operating state and/or other current conditions, priority, a feature or service, and/or user preference. Using one or more on-board networks, data may be generated by an on-board originating device and routed for external delivery, or external data may be delivered to an on-board destination device. Data delivery may occur while the vehicle is en route.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from an entity of a non-terrestrial network (NTN), a system information block (SIB) that indicates information relating to one or more NTN SIBs that are to include at least one of ephemeris information or feeder link timing advance information. The UE may receive, from the entity of the NTN, the one or more NTN SIBs based at least in part on the information. Numerous other aspects are described.

Methods and systems for shaping an electromagnetic wavefront are disclosed. A disclosed method includes tuning a tunable surface in an electromagnetic cavity and receiving the electromagnetic wavefront in the electromagnetic cavity. The electromagnetic wavefront includes a first wave defined by a first wavelength and a second wave defined by a second wavelength. The first wave and the second wave have a shared phase and a shared beam direction in the electromagnetic wavefront. The method further includes reflecting the electromagnetic wavefront within the cavity to repeatedly interact with the tunable surface, and transmitting, after reflecting the electromagnetic wavefront within the cavity, the electromagnetic wavefront from the electromagnetic cavity as a shaped electromagnetic wavefront. The first wave and the second wave have at least one of a difference in phase or a difference in beam direction in the shaped electromagnetic wavefront.

Satellites provide communication between devices such as user terminals (UTs) and ground stations that are connected to points-of-presence (PoP) connected to other networks, such as the Internet. The PoP accepts downstream data addressed to the UT. A representation of the communication resources that are expected to be used to pass the downstream data from the PoP to the UT is determined and executed on one or more processors. The representations may include representations of traffic shapers, modems, and so forth at different points in the network. The representations may consider real-world and simulated feedback data. Within the representation, traffic shaping is employed to determine preshaped data that includes resource metadata designating the communication resources to be used. The preshaped data is passed along to the actual communication resources for subsequent delivery. The preshaping substantially improves performance of constrained communication resources. The preshaped data may be reshaped as real-world conditions change.