H04B7/18532

Enhanced LDACS system having different user classes and associated methods

An enhanced L-band Digital Aeronautical Communications System (LDACS) may include LDACS ground stations; and a LDACS airborne stations, each configured to communicate with the LDACS ground stations at a given class of service from among different classes of service. The enhanced LDACS may also include a network controller configured to operate the LDACS ground stations and LDACS airborne stations at the different user classes of service.

METHODS FOR CONFORMING NON-TERRESTRIAL NETWORK COMMUNICATION TO TERRESTRIAL STANDARDS AND REGULATIONS

User equipment may configure a transmitter or receiver to conform to regulations or standards of a geographical region to communicate with non-terrestrial networks (e.g., satellite networks). In one embodiment, the user equipment may receive an indication of a regulation or standard to which to conform to from a terrestrial communication node, and apply an emission mask to the transmitter based on the regulation or standard. The user equipment may additionally or alternatively configure the receiver to be compliant with a noise level tolerance of a received signal specified by the regulation or standard. In some embodiments, the user equipment may implement a frequency offset between the received signal and an interfering signal associated with the noise level tolerance that is scaled based at least on a channel bandwidth associated with the desired signal. Moreover, the user equipment may scale the noise level tolerance based on the frequency offset.

SATELLITE OPERATIONS WITH SECURE ENCLAVE FOR SECURE INBAND HOSTED PAYLOAD OPERATIONS
20230081825 · 2023-03-16 ·

Systems, methods, and apparatus for satellite operations with secure enclave for secure inband hosted payload operations are disclosed. In one or more embodiments, a method for payload operations comprises receiving, by a vehicle, host commands from a satellite operation portion of a host spacecraft operations center (SOC). The method further comprises reconfiguring a payload and at least bus component on the vehicle according to the host commands. Also, the method comprises transmitting, by the vehicle, host telemetry to the satellite operation portion of the host SOC. In addition, the method comprises receiving, by the vehicle, hosted commands from a secure enclave of the host SOC. Additionally, the method comprises reconfiguring the payload on the vehicle according to the hosted commands. Further, the method comprises transmitting, by a payload antenna on the vehicle, host payload data, hosted payload data, and the encrypted hosted telemetry to the secure enclave.

ENHANCED SHIP-BASED NETWORK CONNECTIVITY USING A CONTENT DELIVERY NETWORK (CDN) EDGE SERVER
20230078360 · 2023-03-16 ·

Systems and methods are provided for enhanced ship-based network connectivity using a content delivery network (CDN) edge server. An example method includes receiving user requests from user devices in wireless communication with a system, with the user requests being associated with applications executing on the user devices. An operating status associated with a satellite communication system is determined, the operation status being indicative of the satellite communication system having bandwidth and/or connectivity to route the user requests via a satellite network. Based on the operating status being negative, a first subset of the user requests is queued for transmission. A second subset of the user requests are responded to using an edge cache. Based on the operating status being positive, the user requests are transmitted via the satellite network to a shore-based system, the shore-based system routing the user requests to web applications associated with different functionality.

Enhanced LDACS system having LDACS underlay and overlay networks and associated methods

An enhanced L-band Digital Aeronautical Communications System (LDACS) may include LDACS ground stations, and a LDACS airborne stations configured to communicate with the LDACS ground stations. The enhanced LDACS may also include a network controller configured to operate the LDACS ground stations and LDACS airborne stations at different transmission powers to define an LDACS underlay network and an LDACS overlay network. The LDACS underlay network may have a larger cell size than the LDACS overlay network. Portions of the LDACS underlay network may be installed prior in time to portions of the LDACS overlay network.

HANDOVER COORDINATION FOR LARGE AREA COVERAGE

A method for performing a handover operation includes using one or more processors of a non-terrestrial node to initiate communication with a first terrestrial node of a network, the terrestrial node having a first unique node identifier and a cell identifier and store a mapping that associates the first unique node identifier with the cell identifier. The method also includes using the one or more processors to receive an indicator that the mapping is subject to change and update the mapping to associate a second unique node identifier of a second terrestrial node of the network with the cell identifier based on the received indicator.

Method for Determining Segmentation Point of Digital Processing Operation and Apparatus
20230116714 · 2023-04-13 ·

Embodiments of this application provide a method for determining a segmentation point of a digital processing operation and an apparatus, and relate to the field of satellite communication. The method is applied to a mobile satellite communication system. The mobile satellite communication system includes a first communication apparatus and a second communication apparatus. The method includes: The first communication apparatus obtains a type of a cell corresponding to a first beam, and determines, based on the type of the cell, a target segmentation point that is of a digital processing operation between the first communication apparatus and the second communication apparatus that is corresponding to the cell. The first beam is any one of a plurality of beams of the satellite, and the type of the cell is determined based on location information of the cell.

Internet-of Things narrowband communications with mobile satellite

A system and method for communicating with an Internet Of Things (IoT) device via a satellite link. The method includes assigning a transmission mode to a physical channel, where the physical channel supports multiple timeslot durations and the transmission mode is selected from a single user (SU) or a multi-user (MU); selecting a timeslot duration from the multiple durations for a payload; obtaining, when the transmission mode is SU, a timeslot grant for use of the physical channel for the timeslot duration; and transmitting a burst including the payload, where the burst is transmitted synchronized with the timeslot grant when the transmission mode is SU and the burst is transmitted without synchronization when the transmission mode is MU.

METHOD AND SYSTEM FOR AUTOMATIC SWITCHING TO IP CONNECTION FROM SATELLITE CONNECTION BASED ON RAIN FADE EVENT PATTERNS

A method, a server, and a non-transitory computer readable medium are disclosed for switching from a radio frequency (RF) signal to an Internet Protocol (IP) connection based on rain fade events. The method includes receiving, on a server, current rain fade event data from one or more set-top boxes; receiving, on the server, past rain fade event data from the one or more set-top boxes; receiving, on the server, past weather data; receiving, on the server, current weather data; calculating, on the server, a likelihood of the one or more set-top boxes experiencing a rain fade event; and sending, from the server, an IP message to switch from the radio frequency (RF) signal to the Internet Protocol (IP) connection to each of the one or more set-top boxes likely to experience the rain fade event before the rain fade event occurs.

METHOD AND SYSTEM FOR INACTIVE AND ACTIVE BEAM TRANSITION IN A SATELLITE RADIO ACCESS NETWORK
20230208511 · 2023-06-29 ·

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.