Abstract: One or more beamsteering matrices are applied to one or more signals to be transmitted via multiple antennas. After the one or more beamsteering matrices are applied to the one or more signals, the plurality of signals is provided to a plurality of power amplifiers coupled to the multiple antennas. Signal energies are determined for the plurality of signals provided to the plurality of power amplifiers, and relative signal energies are determined based on the determined signal energies. Output power levels of the plurality of power amplifiers are adjusted based on the determined relative signal energies.

Abstract: A satellite is configured to communicate with a ground base station to provide coverage for communication in a first geographic region, and suppress from the communication, interference from a second geographic region. The satellite includes an onboard beamformer (OBBF), feed array and feeder-link antenna. The OBBF is configured to produce first and second spot beams for respective ones of the first and second geographic regions. The feed array is configured to receive first and second signals in respective ones of the first and second spot beams for respective geographic regions. At least portions of the first and second signals carry respective ones of the communication and the interference. The feeder-link antenna, then, is configured to transmit the first signals and second signals to the ground base station that is configured to suppress any of the interference from at least the portion of the first signals carrying the communication.

Abstract: Approaches for efficient, dynamic and continuous handover processes, which encompass selection of an optimal path (consisting of a satellite, a satellite beam and carrier frequency set) over which a mobile user terminal (UT) communicates with the radio access network in a mobile satellite communications system, are provided. A set of path factors are determined regarding each of a plurality of communications paths for the UT. A path selection metric (PSM) for each communications path is determined, wherein the PSM for each communications path is determined via a weighted calculation based on the respective set of path factors for the communications path. A decision is made as to whether to perform a handover of the UT from a first of the communications paths to a second of the communications paths, wherein the determination is based on an evaluation performed based at least in part on the PSM.

Abstract: A method and a system for protection switching is provided. The system includes a plurality of base transceiver station (BTS) linked by a communication network over which each of the plurality of BTS communicate. The plurality of BTS includes a primary BTS and at least two secondary BTS. Each of the plurality of BTS further includes at least two bidirectional antennas, provisioning traffic to at least one secondary BTS as work BTS for backhauling a traffic. The traffic includes a user data traffic or a control and signaling data traffic from the primary BTS. The primary BTS periodically checks for control signal from the plurality of BTS. The primary BTS, upon detection of a failure in a link between the primary BTS and the secondary BTS, may steer a beam to a next available secondary BTS as a protect BTS.

Abstract: A system is provided for reducing latency data collection from space-based sensor satellites. A mobile vehicle platform includes a sensor module configured to monitor certain conditions, circumstances, environments and situations occurring on or around, or associated with, the Earth, and to generate sensor data resulting from the monitoring. A relay satellite terminal is configured to execute data communications via a communications channel of a first satellite beam, wherein the data communications are configured to relay the sensor data, via satellites, to respective gateways for forwarding to a central processing facility for one or more of aggregation, processing, analysis and dissemination of the data. The relay satellite terminal is further configured to switch the data communications from the communications channel of the first satellite beam to a communications channel of a second satellite beam based on a position of the relay satellite terminal relative to the first and second satellite beams.

Abstract: A method of communicating control information in a satellite broadcast communication system is presented. In the method, at least one copy of a control message set is transmitted from a control system by way of a satellite to a broadcast receiver. The control message set includes at least one control message. At least one copy of each of the control messages of the control message set is received at the broadcast receiver. A feedback message is transmitted from the broadcast receiver by way of a terrestrial communication link to the control system. The feedback message includes an indication that all of control messages of the control message set were received at the broadcast receiver. The feedback message is received at the control system. In response to receiving the feedback message, transmission of subsequent copies of the control message set is terminated at the control system.

Abstract: An electronic device includes a microphone, a bias-supply device and a voice-recognition device. The bias-supply device is configured to provide a first bias voltage to serve as an operation voltage of the microphone, when the electronic device is operated in a power-saving mode, such that the microphone transforms a voice signal into a first output signal. The voice-recognition device is configured to receive the first output signal and output a control signal, when the first output signal has a predetermined signal, to enable the electronic device be operated in a normal operation mode and the bias-supply device to provide a second bias voltage that is higher than the first bias voltage to serve as the operation voltage of the microphone, such that the microphone transforms the voice signal into a second output signal and outputs the second signal to a core circuit.

Abstract: Example methods and systems for performing fleet planning based on coarse estimates of regions is provided. A method may include receiving information indicative of a sequence of coverage requirements for a region over a period of time. For one or more time intervals of the period of time, the method may include dividing the region over which vehicles of the plurality of vehicles may traverse into a plurality of sub-regions such that for each subsequent time interval a size of a given sub-region increases. The method includes at each of the one or more time intervals of the period of time, determining vehicles of the plurality of vehicles that can reach a given landmark in a given sub-region by an end of the one or more time intervals, and based on the sequence of coverage requirements, generating a fleet plan for the time intervals based on the determined vehicles.

Abstract: A system, method, and apparatus for integrated resource planning for satellite systems are disclosed. The method involves obtaining user communication demand for at least one region. The method further involves generating a beam map comprising at least one beam for each of the regions according to the user communication demand. Also, the method involves generating at least one configuration profile for the satellite system by using the beam map. Additionally, the method involves performing a performance analysis by comparing: the user communication demand versus one of the configuration profiles, the user communication demand versus actual communication demand, one of the configuration profiles versus the actual communication demand, and/or one of the configuration profiles versus another one of the configuration profiles.

Abstract: Provided is, in wireless communication systems such as TD-LTE where there might be difference in frequency band allocated to a mobile station between uplink and downlink, a wireless communication system which is capable of ensuring desired antenna directivity by the mobile station controlling an adaptive array antenna, such a method for controlling a wireless communication system, such a base station, and such a mobile station. The mobile station transmits to the base station a message indicating that the self station includes an adaptive array antenna. Upon receiving the message, the base station assigns a downlink resource block and an uplink resource block following the downlink resource block allocated to the mobile station within the same frequency band. The mobile station 1 controls the adaptive array antenna based on a signal received using the allocated downlink resource block and transmits a signal using the allocated uplink resource block.

Abstract: Systems, methods, and computer-readable media for providing adaptive beamforming techniques in LTE networks are provided. In embodiments, the method includes identifying user devices associated with device to device (D2D) groups in a sector. Unused static uplink beams provided by the sector are determined. In embodiments, the unused static uplink beams are allocated to user devices associated with the D2D groups. The unused static uplink beams are reallocated for other activities.

Abstract: An e-learning system has a local classroom with an instructor station and a microphone and a local student station with a microphone, a remote classroom with an instructor display and a student station with a microphone, and planar displays and video cameras in each of the classrooms, the remote and local classrooms connected over a network, with a server monitoring feeds and enforcing exclusive states, such that audio and video feeds are managed in a manner that video and audio of the instructor, the local students and the first remote students, as seen and heard either directly or via speakers and displays by each of the instructor, the local students and the remote students presents to each as though all are interacting in the same room.

Abstract: Methods, apparatuses, and systems for improving utilization of a communications system (e.g., a satellite communications system) are provided, using techniques referred to herein as “deltacasting.” Embodiments operate in a client-server context, in which the server-side of the communication link intercepts requests and responses using a client-server optimizer (e.g., a transparent proxy or in-line optimizer between a client web browser and an Internet content provider). The optimizer uses techniques, such as dictionary coding techniques, to create fingerprints of content traversing the links of the communications system. These fingerprints are used to identify and exploit multicasting and/or other opportunities for increased utilization of the communications links.

Abstract: Techniques for optimizing modem use for data delivery to vehicles that are near to or parked at ports include using a high-capacity forward communications link, in a first frequency band, to support a logical forward link of a data tunnel via which data is delivered between a data provider and the vehicle. Instead of using the reverse communications link of the first frequency band, though, a reverse communications link in a different frequency band is used to support the reverse logical link of the data tunnel, as reverse data typically requires less bandwidth. Thus, the forward communications link is used in a high-throughput, unidirectional manner. Forward data may be multiplexed and/or multicast, and in some cases, multiple forward communications links may be used in parallel to support the logical forward link of the data tunnel.

Abstract: A satellite reception assembly may comprise a memory collocated with a receive module and a basestation module. The receive module may receive a satellite signal and recover data carried in the satellite signal. The data may be stored in the memory. The stored data may be transmitted to mobile devices via the basestation module. Which portion of the recovered data is store in the memory may be based on demand for particular data in the coverage area served by the basestation module. Which portion of the recovered data is stored in the memory may be based on information provided by a satellite subscriber, such as the subscriber's anticipated location at one or more future time intervals.

Abstract: A high throughput satellite including a transponder configured to receive radio wave signal from a market area, transmit the signal to a hub, receive a response signal from the hub, and transmit both the original signal and the response signal back to the market area. The satellite may also provide increased throughput by re-using spectrum in the Ka band. The satellite may also include a payload architecture which may be reconfigured such that, in response to control signals received from the ground, the payload architecture provides satellite communications to a first market area, a second market area, or both the first market area and the second market area.

Abstract: A method and apparatus for processing network origination calls in a hybrid network. A system that incorporates teachings of the present disclosure may include, for example, a network management system (NMS) having a detection module to detect at a first terminal a network origination call directed to a second terminal, a search module to search a terminal type for each of the first and second terminals according to information supplied in the network origination call, and an enablement module to enable at least one media gateway to provide communication services to each of the first and second terminals identified as a circuit-switched terminal by its corresponding terminal type. Additional embodiments are disclosed.

Abstract: A communications system comprising a first transceiver and a second transceiver, which system employs a device that measures power over a frequency band from sources other than those monitoring downlink radiation received at a radio terminal from the satellite, and a controller that receives these power measurements to determine on which frequency channel within a band a transmitter is to transmit.

Abstract: A user device is associated with a dynamic trust score that may be updated as needed, where the trust score and the updates are based on various activities and information associated with the mobile device. The trust score is based on both parameters of the device, such as device type, registered device location, device phone number, device ID, the last time the device has been accessed, etc. and activities the device engages in, such as amount of transactions, dollar amount of transactions, amount of denied requests, amount of approved requests, location of requests, etc. Based on a transaction request from the user device, the trust score and a network reputation score is used to determine an overall trust/fraud score associated with the transaction request.

Abstract: Systems and methods for problem signature terminal diagnosis are disclosed. In an example embodiment, measured operational statistics of a satellite terminal of a peer group of satellite terminals are received and converted into normalized operation statistics. Normalized deviations of the operational statistics are determined and compared to the threshold deviations. A diagnosis zone corresponding to a problem signature is determined based on the normalized deviations by determining that coordinates of the normalized deviations are within the diagnosis zone, comparing a ratio based on the normalized deviations to a threshold ratio, or comparing a differential of the normalized deviations to a threshold differential. A satellite terminal is diagnosed with a problem defined by the problem signature based on the determined diagnosis zone.

Abstract: Systems and methods provide a supplemental mobile communication device that allows use of a host communication device with a network different from that associated with the host device, e.g., a network of a different service provider or that is otherwise restricted to the host device. The system may include a supplemental mobile communication device having a transmitter selectively communicating with a plurality of host devices associated with a different wireless network. The system may further include a processor configured to compare a service plan associated with the supplemental mobile communication device with a service plan associated with the host device, and selectively route communications initiated by a user interface of the host device through one of the first and second communication networks based upon at least the comparison of the first and second service plans.

Abstract: A method for mitigating inter-cell interference by a base station in a cellular communication system. The base station determines cells to which same frequency resources are allocated, and which cause interference to each other, and determines a starting time slot, at which resource allocation to each cell starts, as a different time slot for each cell, taking into account a number of the cells and time slots constituting time resources. In response to receiving a call setup request from a terminal, the base station selects a time slot taking into account interference information of each of the time slots, and allocates a resource based on the selected time slot to the terminal.

Abstract: Techniques are described for managing communications between multiple intercommunicating computing nodes, such as multiple virtual machine nodes hosted on one or more physical computing machines or systems. In some situations, users may specify groups of computing nodes and optionally associated access policies for use in the managing of the communications for those groups, such as by specifying which source nodes are allowed to transmit data to particular destinations nodes. In addition, determinations of whether initiated data transmissions from source nodes to destination nodes are authorized may be dynamically negotiated for and recorded for later use in automatically authorizing future such data transmissions without negotiation. This abstract is provided to comply with rules requiring an abstract, and it is submitted with the intention that it will not be used to interpret or limit the scope or meaning of the claims.

Abstract: A VSAT system modem has three chips and a block. A first chip generates a modulated carrier signal and a local oscillator signal having a same frequency. A second chip receives the local oscillator signal from the first chip and produces a reference signal. The reference signal and the modulated carrier signal are received by the block, which multiplexes the reference signal and the modulated carrier signal onto a single inter-facility link. The single inter-facility link transmits the modulated carrier signal and the reference signal and provides a received modulated carrier signal to a third chip. The first chip may be a synthesizer/modulator chip, the second chip may be a prescaler chip, the third chip may be a DVB-S2 tuner chip and the block may be a multiplexer. The chips may be standard semiconductor chips. Alternatively, a digital-to-analog converter chip may produce the reference signal.

Abstract: A method and system for determining the geolocation of a vehicle in the absence of a GPS signal includes determining the geodetic position of each of a plurality of airborne objects based on the relative position of at least one star and at least one satellite. The determined geodetic positions of each of the airborne objects is transmitted to the vehicle. A distance from the vehicle to each airborne vehicle is calculated. Based on the geodetic position determined for each airborne object and the distance from the vehicle to each of the airborne objects, the geodetic position of the vehicle is determined. A receiver receives the geodetic position of each airborne object, calculates a distance to each airborne object, and determines a current geodetic position based on the received geodetic positions of the airborne objects and the distance from the vehicle to each airborne object.

Abstract: A network of switches includes N input accesses and M output accesses, with each of the switches including four ports and with the network input and output accesses being connection switch ports. The network includes at least one stage of switches, with each stage including: a pair of switch lines whose ports are not used as network input or output accesses, referred to as “interconnection switches”, a line being a set of interconnection switches connected to one another; and at least two transverse arms linking interconnection switches of different lines, a transverse arm consisting of elements that are separate from those of the other transverse arms, a transverse arm including at least two links and a switch, referred to as “transverse switch” with the connection switches being transverse switches. At least two transverse switches from different transverse arms of each stage are connection switches of the network.

Abstract: Methods, systems, and apparatus are disclosed for determining accurate ranging measurements between communication devices. Various embodiments are described for recording timestamps associated with when transmissions are sent and received between the communication devices. The communication devices are configured to determine a difference in their clock frequencies and to communicate this difference with one another. Furthermore, each of the communication devices is configured to compensate for these differences before or after the timestamps are exchanged and to send a compensation indicator of whether the compensation has been performed. If the compensation has not been performed, either of the communication devices can compensate for the clock frequency differences after receiving the timestamps based on the compensation indicator. By using compensated clock frequencies based on a single clock reference, highly accurate ranging measurements are obtained using round trip propagation time calculations.

Abstract: A method is provided that enhances the throughput of data broadcasts in a multi-beam satellite communication system by taking advantage of target users whose normal environment or equipment provide a better channel performance than that of the nominal environment or equipment for which the system is tuned, which enables a larger coverage area per beam than the nominal design supports. A system is provided that operates the method. A preferred embodiment is described using the Iridium Mobile Satellite Service (MSS) system as a basis.

Abstract: When multiple communication terminals access a base station in CDMA in which transmission signals are spread with orthogonal codes, the orthogonal codes in CDMA signals transmitted from the communication terminals are synchronized on the communication path. The communication terminals each include an information acquirer acquiring reference time information common to the multiple communication terminals, a transmission time generator generating a chip clock on the basis of the time information, an orthogonal code generator generating orthogonal codes in time with the timing of the chip clock, a CDMA spreader spreading transmission signals with the orthogonal codes to generate code division multiple access signals, a carrier wave generator generating a carrier wave, and a BPSK modulator modulating the carrier wave generated by the carrier wave generator with the code division multiple access signals and transmitting the carrier wave.

Abstract: A method for operating an amplifier module of a communication satellite involves saving at least one configuration parameter of the amplifier module in a non-volatile memory designed to store the configuration parameter when the amplifier module is not energized. The configuration parameter can be loaded from the non-volatile memory and used to configure the amplifier module.

Abstract: A method of reducing adjacent satellite interference, the method comprising monitoring, by a processor, a power spectral density (PSD) of a signal transmitted by a remote transmitter, determining, by the processor, that the PSD of the signal transmitted by the remote transmitter is above a predetermined level, and reducing the PSD of the signal transmitted by the remote transmitter by adjusting at least one of a spread spectrum spreading factor, a power level, a modulation factor, and a forward error correction (FEC) rate using a modulator while maintaining a constant spectral allocation and center frequency of the signal.

Abstract: A high capacity satellite communications system including a satellite with a beam for a forward downlink focused on a geographic area for which disproportionately higher capacity is desired, a hub located in a geographic area for which disproportionately lower capacity is desired, compared to the location of a VSAT, and the VSAT located in area where a beam for a forward downlink received by the VSAT from the satellite does not overlap with a beam for a return downlink received by the hub from a satellite.

Abstract: A signal transmitting method according to an exemplary embodiment of the present invention includes channel-coding broadcasting channel information by using a first scrambling code in a first frame within a broadcasting channel information updating period including a plurality of frames, and channel-coding the broadcasting channel information by using a second scrambling code in a second frame within the broadcasting channel information updating period. The second scrambling code is different from the first scrambling code.

Abstract: A VSAT terminal including an antenna, a microwave power amplifier, a microwave low noise amplifier, a transmitter coupled via the microwave power amplifier to the antenna, a receiver coupled via the microwave low noise amplifier to the antenna, a user VSAT interface, and a controller in communication with the user VSAT interface and in electrical connection with the microwave power amplifier and the microwave low noise amplifier for supplying power thereto, the controller being operative to provide a less-than-full electrical power supply to either of the amplifiers in the absence of a communication session and operative to provide a full electrical power supply to either of the amplifiers in the presence of a communication session. A smart stand by mode is employed in which the transmitter and receiver are turned off simultaneously to conserve power. The receiver turns on periodically to determine if it is to receive a call.

Abstract: A data distribution system, method and a computer program product therefor. Computers provisioned with operations centers supporting individual locations share resources with organizations in multiple locations. Each operations center receives and evaluates local information for the supported location and selectively provides evaluated information for reuse by other locations. A data exchange agent in each operations center publishes information available from a supported location to a publication subscription unit. The operations center also subscribes to the publication subscription unit for information available from other locations. The publication subscription unit identifies matches between subscriptions and publications. A negotiation unit negotiates matched information transfers between operations centers.

Abstract: An apparatus for beam selection for a multibeam satellite communications system including a very small aperture terminal (VSAT) with a remote satellite dish for sending and receiving RF signals and processor for calculating a normalized distance metric for user spot beams, selecting the user spot beam with the lowest normalized distance metric, and finding an outroute on the selected user spot beam using the remote satellite dish.

Abstract: A novel terrestrial wireless communications technique for terrestrial portable terminals including hand-held mobile devices and fixed wireless instruments, utilizing a spoke-and-hub communications system, having a plurality of individual hubs and/or base-stations all in communications with the portable terminals. The portable terminals and the hubs are assigned to use incompatible polarity formats in terms of circularly polarity (CP) and linearly polarity (LP). In forward links, a signal processed by the LP ground telecommunications hubs is radiated through multiple antennas with various LP polarities to an individual CP user simultaneously. The multiple paths are organized via assignments of a plurality of polarities, frequency slots, and directions by wavefront multiplexing/demultiplexing techniques such that the same communications assets including frequency spectrum may be re-used by other users. The same polarity diversity methods can be extended to peer-to-peer communications.

Abstract: A method for adjusting transmission power, in a wireless cellular telecommunication network, of signals transferred by plural mobile terminals through a wireless interface, the mobile terminals being served by at least one base station or by home base stations, the home base stations being located in the cell of the at least one base station. The method includes: obtaining at least the path gains between the mobile terminals and the at least one base station and at least one home base station; determining statistics from the obtained path gains; obtaining at least one coefficient of a function according to at least a part of the statistics; transferring an information representative of the at least one obtained coefficient to the mobile terminals.

Abstract: A method and apparatus for processing a signal. The signal is received in a receiver system in a satellite. The signal has a range of frequencies in which information is carried in a number of channels having a number of frequencies within the range of frequencies. The number of frequencies for a channel in the number of channels changes within the range of frequencies over time. The signal is transmitted using a transmitter system in the satellite. The signal is unprocessed to identify the number of frequencies for the channel used to carry the information by the satellite.

Abstract: A satellite communication system using hierarchical modulation to transmit a plurality of modulated signals to sub-regions within a region. Each modulated signal includes high priority content and low priority content. The system includes a satellite equipped with a plurality of satellite transmitters coupled to a plurality of antenna elements, e.g. a phased array of antenna elements. The antenna elements are utilized selectively to direct a modulated signal from a satellite transmitter to a distinct sub-region. The satellite transmitters and antenna also cooperate to broadcast the high-priority content to the region such that a ground receiver traveling from a first sub-region to an adjacent second sub-region adjacent will not experience a loss of high-priority content. First low-priority content of a first modulated signal directed to the first sub-region is independent of second low-priority content of a second modulated signal directed to the second sub-region.

Abstract: A dual-satellite emergency locator beacon and method for programming and updating such emergency locator beacons over the air. The system uses a second commercial satellite as the carrier for the data back to the beacon together with the means of coupling these parts together. The system can be manually updated or can be part of a registration system that gets automatically updated. In a second embodiment a method and apparatus for implementing emergency locator beacon registration is provided. The system provides data concerning the user into a backend service which can be utilized to provide all necessary information needed to register the emergency beacon.

Abstract: A transmission and reception spot beam antenna is provided. A first transponder is configured to receive communications signals within a first receive spot beam and to transmit the communications signals within a first transmit spot beam. A second transponder is configured to receive reach-back signals within a second receive spot beam and to process the reach-back signals. A link between the second transponder and the first transponder passes the reach-back signals to the first transponder for transmission within the first transmit spot beam. A third transponder is configured to receive communications signals within a third receive spot beam and to transmit the communications signals within a third transmit spot beam. A link between the first transponder and the third transponder passes the communications signals to the third transponder, wherein the third transponder is configured to process the communications signals for transmission within the third transmit spot beam.

Abstract: A rain diversity switchover system includes a diversity Satellite Access Station (SAS) including a transmitter modem and a receiver modem in communication with a satellite. The system further includes a primary SAS including a transmitter modem and a receiver modem in communication with the satellite via a second satellite antenna, where the transmitter and receiver modems of the primary SAS are synchronized with the transmitter and receiver modems of the diversity SAS via a common time source. Further, a hub data processor adjusts a timing of transmissions from the diversity SAS to the satellite relative to the common time source in accordance with a difference between a time of flight from the diversity SAS to the satellite and a time of flight from the primary SAS to the satellite. Additionally, a switchover controller controls a rain diversity switchover between the primary SAS and the diversity SAS.

Abstract: A wireless communication apparatus includes: an estimating section to estimate a positional relationship between a destination node and a node; a first determination section to set an electric power larger than or equal to minimum power as a first transmission power if the node is estimated to be located in a first area, the minimum power being detected by a node at the largest distance from the node in the first area; a second determination section that set an electric power smaller than a minimum power as a second transmission power if the node is estimated to be located in an area other than the first area, the minimum power being detected by the destination; and a transmitting section to transmit data to the destination node with the first transmission power or the second transmission power.

Abstract: A satellite communications system includes a satellite configured to communicate with terminals, a station configured to communicate signals intended for the terminals to the satellite via a plurality of feeder links and a beamformer including an input multi-port hybrid matrix (MPHM) and a complementary output MPHM in a signal path with the plurality of feeder links. The output MPHM is positioned at the satellite and coupled to the input MPHM via the plurality of feeder links. For example, the input MPHM may be positioned at a ground-based satellite gateway. The input and output MPHMs may be configured to implement fully populated signal transformation matrices that collectively provide a substantially diagonal signal transformation matrix.

Abstract: An interactive gaming channel presented on a monitor, with a plurality of transponders being used to present the games available at a given time. Such a channel in accordance with the present invention comprises a game selection screen, comprising a genre selection area and a game selection area, related to the genre selection area, wherein a viewer of the monitor selects a game to be played from a plurality of games.

Abstract: Methods, systems, and devices are described for managing satellite communications through the deployment of a fleet of multi-beam satellites serving overlapping and non-overlapping spot beams. In these methods, systems, and devices, a first communication service associated with a relatively wider spot beam of a first satellite is provided to a first coverage area having multiple terminals. A second communication service associated with a relatively narrower spot beam (e.g., high-gain spot beam) of a second satellite is provided to a second coverage area located within the first coverage area. A subset of terminals located within the second coverage area is identified, and the terminals of the identified subset are transitioned from the first communication service of the wide spot beam of the first satellite to the second communication service of the high-gain spot beam of the second satellite.

Abstract: One or more circuits of a satellite reception assembly may be operable to receive a satellite signal, recover content carried in the satellite signal, and broadcast a signal carrying the content for reception by one or more mobile devices. The satellite reception assembly may be mounted to the residence of a satellite subscriber. The signal carrying the content may be frequency locked to a reference signal that is available to the satellite reception assembly and to one or more other satellite reception assemblies. The reference signal may be a GNSS signal. The one or more circuits may communicate with the one or more mobile devices to provide a key to the one or more mobile devices, where the key is required for descrambling and/or decryption of the content carried in said signal.

Abstract: A satellite communication system and method for an adaptive channel assignment is disclosed in which the satellite communication apparatus include a satellite beam generator to generate a satellite beam to be output to a coverage area, a channel assignor to assign a channel for the satellite beam based on interference information of the coverage area, and a communication link forming unit to form a communication link with an earth station disposed in the coverage area based on the assigned channel.

Abstract: Resource allocation to user terminals of a satellite system is optimized, the user terminals configured for data communication with a satellite via a common antenna beam. A resource is allocated, within the common antenna beam, to each user terminal i such that, when total available bandwidth A of the common antenna beam is not less than the total desired bandwidth ?=?i=1n ?i of the antenna beam, bi is no less than ?i, where: ?i is bandwidth demand at user terminal i, approximately equal to Ti-des/si; Ti-des is proportional to a throughput requirement by user terminal i; and si is an estimated spectral efficiency of user terminal i. When A is less than ?, bandwidth bi is allocated to each user terminal such that a number of user terminals supplied respective bandwidth not less than ?i is maximized.