Abstract: A system to provide second generation (2G) voice services over internet protocol, the system including: a voice gateway (VGW) including a 2G stack to communicate control plane information and user plane information with a 2G user terminal (UT) via a circuit-switched network without modifications to the 2G-UT, an Iu-CS IP stack, and a relay to map the control plane information between the 2G stack and the Iu-CS IP stack, and vice-versa; a mobile switching center (MSC), connected to the VGW via the Iu-CS IP stack, to manage and establish the voice services between the 2G-UT and a public switched telephone network (PSTN) based on the mapped control plane information; and a media gateway (MGW) connected to the VGW via the Iu-CS IP stack, where the MGW communicates the user plane information between the 2G-UT and the PSTN after the MSC 2-G UT vocoder, e.g. AMBE, has established voice services.

Abstract: Systems and methods for operating a multi-band satellite terminal are disclosed. One aspect disclosed features a method, comprising: controlling a multi-band satellite terminal capable of receiving signals on a plurality of frequency bands to receive a signal transmitted by a satellite on a first frequency band of the plurality of frequency bands; determining link conditions of the first frequency band based on the received signal; generating an estimate of link conditions of a second frequency band of the plurality of frequency bands, wherein the estimate is generated based on the link conditions of the first frequency band; selecting the second frequency band based on the estimate of the link conditions of the second frequency band; and controlling the multi-band satellite ground terminal to receive the signal transmitted by the satellite on the second frequency band.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for improving communication throughput despite periodic blockages. In some implementations, a method includes receiving, by a receiver and from a transmitter, code blocks transmitted according to a first set of communication parameters that includes one or more first interleaver parameters used to interleave information in the code blocks prior to transmission. Corrupted portions of at least some of the received code blocks are identified. A blockage duration and a blockage interval of a blockage of communication channel between the transmitter and the receiver are determined based on the corrupted portions of the received code blocks. A second set of communication parameters that includes one or more second interleaver parameters are determined based on the blockage duration and blockage interval.

Abstract: A base station receiver is described. The base station receiver may comprise at least one processor and memory. The memory may store instructions executable by the at least one processor. The instructions may include, to: receive, via a time-division multiple access (TDMA) scheme, a first carrier frequency comprising a first burst; receive, via the TDMA scheme, a second carrier frequency comprising a second burst; and demodulate and decode both the first and second bursts using a common demodulating and decoding node (DDN).

Abstract: A system and method are disclosed for estimating the location of a satellite terminal. The terminal is selected from among a plurality of terminals, and one or more position estimates are generated for a satellite which provides service to the terminal. The position estimated can be generated, for example, by performing a first one or more iterative grid searches over a plurality of potential position estimates for the satellite. A location estimate is subsequently generated for the terminal by performing a second one or more iterative grid searches over a plurality of potential location estimates for the terminal.

Abstract: Systems and method are disclosed and among these is a method for fingerprint based detection of Internet of Things (IoT) devices and classification of IoT device type, and corresponding adaptive allocation of link resources, with monitoring of traffic for flow data, detecting IoT devices and classifying the IoT device types, via machine learning classifiers, real time assigning IoT device type based quality of service (QoS) for IoT device traffic, and corresponding IoT device type based, real time allocating of resources to the link. Optionally, machine classifiers can be centrally instantiated, distributed to what can be large populations of user IoT Internet access terminals, and retrained by same, centrally merged or combined, and then redistributed.

Abstract: A satellite telecommunication system includes a satellite and multiple computing devices. One computing device is in communication with the satellite and programmed to generate a virtual local area network (VLAN) packet with a VLAN tag and transmit the VLAN packet to the satellite. Another computing device is in communication with the satellite and programmed to receive the VLAN packet, determine VLAN tag information from the VLAN tag, and forward at least the original packet while preserving VLAN tag information associated with the VLAN tag.

Abstract: A system and method for beamforming beams including: matching weights T to a distribution of resources for each of the beams based on a traffic variation for each of the beams; calculating, with a signal processor for each of the beams based on the weights T, a power scalar ? and a weighted minimum mean squared error (WMMSE) matrix WWMSE; and transmitting/receiving the beams based on the power scalar ? and the WMMSE matrix WWMSE, where the power scalar ? satisfies a total power constraint of an antenna subsystem.

Abstract: A system and method are disclosed for providing single-hop communication sessions in a satellite network. A timing offset is selected based on a system timing reference, and used to establishing a common timing reference. A synchronization signal is transmitted from a gateway to a satellite based on time slots aligned with the common timing reference, and subsequently forwarded from the satellite to all terminals managed by the gateway. Communication sessions are initiated by terminals using the common timing reference, and downlink transmissions from the satellite to the terminals are aligned with the synchronization signal.

Abstract: A system and method for providing community-based broadband access are disclosed. The system is configured to provide private LTE based broadband access at remote areas that are served by satellite backhaul. The system is also configured to provide a community-based Wi-Fi like broadband service where users can purchase hourly, weekly, or monthly data packs as and when desired. The LTE base station, LTE core network, and satellite terminal included in the system are all deployed at the remote location to efficiently connect users to the internet over satellite backhaul. The system architecture further expands broadband reach for users in remote areas as compared to coverage with current satellite-based Community Wi-Fi hot spots, and provides an integrated backend system for LTE and Wi-Fi based access.

Abstract: Techniques including controlling coupling and uncoupling of RF ports included in an RF switch matrix including first-side RF ports and second-side RF ports, where each of the first-side RF ports is configured to be selectively coupled to at least one of two or more of the second-side RF ports, identifying one or more of the second-side RF ports as active ports including an active port, causing the RF switch matrix to couple the active port to a signal port included in the first-side RF ports, obtaining at least one of a bit error rate and a signal to noise ratio for a demodulation of an RF stream received via the active port, and causing, in response to at least one of the bit error rate or the signal to noise ratio, the RF switch matrix to couple the signal port to a spare port included in the second-side RF ports.

Abstract: A system and method for characterizing performance of a terminal radio. The method includes obtaining a plurality of SNR feedbacks by, for each input power level of varying input power levels of the terminal radio, estimating an SNR (signal-to-noise ratio) associated with a respective input power level for a burst sent from the terminal radio to a gateway, where each of the SNR feedbacks may include an estimated SNR and the respective input power level; and determining a RC (radio characterization) of the terminal radio based on where the SNR feedbacks start deteriorating without indicating a saturated response at the gateway, where bursts are transmitted at a selected frequency with a selected SYMCOD (symbol, modulation and error coding scheme).

Abstract: Implementations of the disclosure are directed to network layer channel bonding. In one implementation, a method comprises: operating a first communication device to transmit data to a second communication device over multiple communication links, each of the communication links associated with a respective communication medium; receiving, at the first communication device, an input data stream for transmission to the second communication device, the input data stream comprising packets; determining, at the first communication device, a throughput and latency of each of the communication links; based on the determined throughput and latency of each of the communication links: dividing the packets into multiple sets, each of the sets configured to be transmitted by the first communication device over a respective one of the communication links; and transmitting, from the first communication device to the second communication device, each of the sets of packets over the set's respective communication link.

Abstract: An apparatus, system, and method for balancing traffic loads on beam outroutes that contain both multicast and unicast traffic. An outroute is designated for supplying at least multicast traffic within a beam of a satellite communication system. Terminals interested in receiving the multicast traffic are moved to the designated outroute. Traffic loads on all outroutes within the beam, including the designated outroute, are compared to determine if variations in the traffic loads exceed a predetermined threshold. A load balancing routine is performed to redistribute the traffic loads on all outroutes, while excluding any terminal that is actively receiving the multicast traffic from the load balancing routine.

Abstract: A system and method for operating a hybrid 4G satellite network. The method includes providing a NGSG including a satellite AS/NAS stack, a terrestrial 4G stack and a relay to connect the satellite AS/NAS stack and the terrestrial 4G stack; transporting a 4G traffic between a 4G UE and the NGSG using a satellite air interface; utilizing a terrestrial network between the NGSG and a 4G CN to transport the 4G traffic; and mapping, with the relay, the 4G traffic between the satellite AS/NAS stack and the terrestrial 4G stack and vice versa, where the satellite air interface is better suited for satellite communications than the terrestrial network. A system and method for multiplexing a first-generation UE and a second-generation UE on a satellite channel.

Abstract: A system and method for beamforming beams including: matching weights T to a distribution of resources for each of the beams based on a traffic variation for each of the beams; calculating, with a signal processor for each of the beams based on the weights T, a power scalar ? and a weighted minimum mean squared error (WMMSE) matrix WWMSE; and transmitting/receiving the beams based on the power scalar ? and the WMMSE matrix WWMSE, where the power scalar/3 satisfies a total power constraint of an antenna subsystem.

Abstract: 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.

Abstract: A system and method for reducing usage of satellite channelizers including dividing a frequency spectrum into sub-bands; providing a satellite channelizer for each of the sub-bands, where each of the sub-bands may include channels; multiplexing service channels into the channels of one of the sub-bands, where the service channels convey data for a plurality of MSSs. A system and method for obtaining high throughput on a satellite network. A system and method for providing a Fair Access Policy (FAP) in a 4G system.

Abstract: A method wherein resource data for a web resource is generated can include age, confidence level, cacheability level, cache expiration, and/or priority level. Resource readiness for the web page is prepared based on the resource data. This can include preconnecting to a domain having the web resource when the resource data indicates a first level of resource readiness; preloading the web resource from the domain when the browser is open when the resource data indicates a second level of resource readiness, where the second level of resource readiness is greater than the first level of resource readiness; or prefetching the web resource from the domain prior to opening of the browser when the resource data indicates a third level of resource readiness, where the third level of resource readiness is greater than the second level of resource readiness.