| Entries |
| Document | Title | Date |
|---|
| 20080247352 | Determination By a Communication Terminal of the Propagation Time of a Reference Signal Coming From a Communications Management Equipment - A communication network including at least one piece of communication management equipment (SG) having a management component (MG) in charge of generating reference signals to be transmitted in a signaling channel to communication terminals (UE) connected thereto, and provided, along with each of the terminals (LIE), with an internal time reference which is defined in relation to a time set of a satellite positioning system (CS). The management component (MG) is also configured in such a way as to be able to generate a message including information representing the time of transmission of a reference signal in relation to the time set with a view to the transmission thereof to the terminals (UE) in a signaling channel. | 10-09-2008 |
| 20080285504 | Multimode wireless network device, system and the method thereof - The present invention provides a multimode wireless network device, system and the method thereof. Particularly, a dual role of router and relay station is provided simultaneously in the multimode wireless network device; furthermore, dual communication modes, namely WiMAX and WiFi, are provided at the same time. The first multimode wireless network device located within the communication range of a WiMAX base station may establish a connection with the base station directly and transmit WiMAX wireless network signals. The second multimode wireless network device located outside of the communication range may establish a connection with the first multimode wireless network device so that the first multimode wireless network device becomes a relay station and may transmit wireless network signals between the second multimode wireless network device and the base station, thereby extending the communication range of the WiMAX base station. | 11-20-2008 |
| 20080291865 | Multiple access spread spectrum switching methodology - A low-cost, low-power, low-complexity, small, high-reliability, robust, seamless satellite communication network is described. The network performs encoding of a user signal at the customer premises to enable routing of the user signal to an appropriate destination beam at the satellite requiring low power user signal processing. Routing information is embedded at the periphery of the network CPE's rather than at the satellite. Embedding the routing information in this way greatly reduces on-board switching complexity and increases signal to interference ratio for the user. | 11-27-2008 |
| 20080316955 | Method and Apparatus for SDMA in a Wireless Network - Techniques for enabling SDMA in a wireless network without using special SDMA related protocols in user terminals are disclosed. By emulating multiple non-SDMA base stations co-located at the same cell site, a base station is capable of communicating with regular user terminals on SDMA channels without requiring special SDMA protocols being implemented in the user terminals. FDMA, TDMA, and CDMA, or any combination of the three, may be used inside each of the emulated non-SDMA base station. SDMA, or any combination of SDMA, FDMA, TDMA, and CDMA, may be used among the emulated non-SDMA base stations. Coordination among the emulated non-SDMA base stations, as well as additional frequency domain, time domain, and code domain signal processing techniques, without the knowledge of the user terminals, may be performed by the SDMA base station to aid in more reliable communication of the SDMA channels. | 12-25-2008 |
| 20090046624 | SYSTEM AND METHOD FOR INSERTING BREAK-IN SIGNALS IN COMMUNICATION SYSTEMS - A system and method are provided for transmitting signals while facilitating channel-specific signal insertion to local user terminals. In one mode, a communication device may operate to transmit signals from a remote signal source (via a communication network infrastructure) to one or more local user terminals. In a second, the communication device may insert a locally-obtained break-in signal into one or more downlink communication channels, and/or bands, thereby providing the break-in signal to one or more specific local user terminals. In this manner, communications over a communication channel to a local user terminal may be interrupted by or mixed with an inserted break-in signal to the user terminal. Additionally, the communication device may also operate to establish bidirectional communications between a local operator and one or more user terminals as well as relay communications between two or more local user terminals while bypassing the conventional network infrastructure. | 02-19-2009 |
| 20090046625 | System and Method for Management of a Shared Frequency Band - A system, method, software and related functions are provided for managing activity in a radio frequency band that is shared, both in frequency and time, by signals of multiple types. An example of such a frequency band is an unlicensed frequency band. Radio frequency energy in the frequency band is captured at one or more devices and/or locations in a region where activity in the frequency band is happening. Signals occurring in the frequency band are detected by sampling part or the entire frequency band for time intervals. Signal pulse energy in the band is detected and is used to classify signals according to signal type. Using knowledge of the types of signals occurring in the frequency band and other spectrum activity related statistics (referred to as spectrum intelligence), actions can be taken in a device or network of devices to avoid interfering with other signals, and in general to optimize simultaneous use of the frequency band with the other signals. The spectrum intelligence may be used to suggest actions to a device user or network administrator, or to automatically invoke actions in a device or network of devices to maintain desirable performance. | 02-19-2009 |
| 20090052373 | Use of satellites by terminals with small antennas - Methods to improve the efficiency of satellite transmission by coordinating the use of corresponding channels on adjacent satellites. Improvements over the current state of the art range from 130% to 1000%, yielding in the best case full utilization of potential bandwidth. | 02-26-2009 |
| 20090232046 | Communication network - A telecommunication network for establishing radiofrequency links between gateways and ground terminals via a multispot satellite, the network comprising a multispot satellite, a plurality of gateways, each gateway establishing a link with the satellite on at least Ns link channels corresponding to Ns frequency intervals [f | 09-17-2009 |
| 20090290534 | UPFRONT DELAYED CONCATENATION IN SATELLITE COMMUNICATION SYSTEM - Upstream information at a user terminal in a satellite network is efficiently scheduled through a Demand Assigned Multiple Access (DAMA) algorithm that delays transmission of the first packet's bandwidth allocation request in order to allow subsequent packets to be included in the first packet's bandwidth allocation request (up-front delayed concatenation) in order to minimize delay due to the long round trip time and overhead in packet processing and packet transmission through a hardware queue. Rather than merely the size of the next packet, the size of the entire concatenated frame is communicated to the scheduler, which may be distributed between the user satellite modem and the gateway, to prepare the schedule, where the schedule is the basis of the upstream transmission of the various associated user terminals. Optimal delay is a function of traffic pattern and the scheduling delay including round-trip delay. | 11-26-2009 |
| 20090296628 | SATELLITE/TERRESTRIAL WIRELESS COMMUNICATIONS SYSTEMS AND METHODS USING DISPARATE CHANNEL SEPARATION CODES - A wireless communications system includes a space-based component (SBC) and an ancillary terrestrial component (ATC) configured to communicate with radioterminals using a common satellite service link frequency band and respective first and second different sets of channel separation codes. The first and second sets of channel separation codes may include, for example, respective sets of scrambling codes, respective sets of frequency assignment codes, respective sets of channel assignment codes, respective sets of sub-channel assignment codes and/or respective sets of spreading codes. | 12-03-2009 |
| 20100020743 | SATELLITE COMMUNICATIONS SYSTEM HAVING TRANSMITTING STATION DIVERSITY - The invention relates to a method for transmitting signals termed useful signals via a satellite by means of connection stations. To this end, a first connection station (CNX | 01-28-2010 |
| 20110090841 | Relay Multiple Access Wireless Networks - A system and method direct to an intelligent, adaptive, multiple-access relays that can form their own network, optimize their own attributes, utilize their own resources, influence the configurable components of the wireless network around it, and transform the characteristics of the wireless network towards its mission requirements and goals. | 04-21-2011 |
| 20110149837 | METHOD FOR MOBILE SATELLITE COMMUNICATION BY COORDINATED MULTI-POINT TRANSMISSION AND APPARATUS THEREOF - Provided is mobile satellite communication method and apparatus. The satellite communication method includes detecting a location of a terminal, determining a signal transmission scheme for the terminal using the terminal location, determining a subcarrier region to transmit a signal to the terminal using the location of the terminal, and communicating with the terminal using the determined signal transmission scheme and the determined subcarrier region. | 06-23-2011 |
| 20110255464 | HIGH CAPACITY SATELLITE COMMUNICATIONS SYSTEM - 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. | 10-20-2011 |
| 20120113890 | REVERSE LINK POWER AND DATA RATE CONTROL - Arrangements are presented for adjusting a power level and data rate at an access terminal. The access terminal may include a transmitter module configured to transmit data packets to a gateway. The access terminal may include a receiver module configured to receive control data generated at the gateway. The access terminal may also include a control module. The control module may evaluate the received control data. The control module may increase a transmit power level for data packets to be transmitted from the transmitter module when a first set of conditions is not satisfied. In the first set of conditions, the control data may include a first command. The control module may increase a data rate for data packets to be transmitted from the transmitter module when a second set of conditions is satisfied. In the second set of conditions, the control data may include a second command. | 05-10-2012 |
| 20120155378 | APPARATUS AND METHOD FOR PROVIDING FREQUENCY SELECTIVELY IN SATELLITE COMMUNICATION SYSTEM - A transmission apparatus and method for implementing frequency selectivity in a multi-beam satellite system that transmits a signal to user equipment through one or more antenna feed groups. The transmission apparatus includes: an antenna feed group selecting unit configured to select one or more antenna feed groups from the one or more antenna feed groups; a cyclic delay offset determining unit configured to determine a cyclic delay offset according to a determination result of the antenna feed group selecting unit; and a transmitting unit configured to apply the cyclic delay offset determined by the cyclic delay offset determining unit to a signal to be transmitted through the one or more antenna feed groups selected by the antenna feed group selecting unit, and to transmit a resultant signal. | 06-21-2012 |
| 20120224527 | CONDITIONAL ACCESS SYSTEM FOR SATELLITE OUTDOOR UNIT - A method and apparatus is disclosed to restrict the delivery of video, audio, and/or data to unauthorized end users in a satellite communications system. The satellite communications system includes one or more satellite receiving antennas, commonly referred to as a satellite dish, to receive downlink communications signals from one or more satellites. The transmission received by the one or more satellite receiving antennas is converted by an outdoor unit (ODU) for transmission to one or more indoor units (IDUs). The ODU receives control information from one or more satellites from the downlink communications signals, commonly referred to as in-band, and/or from out-of-band communications signals. The ODU may use the control information to restrict access to one or more communications channels embedded within the downlink communications signals to the unauthorized end users. | 09-06-2012 |
| 20120250607 | Digital Television (TV), Ship and Other Water Based Interactive Communication Methods - A digital television (TV) signal, received from a satellite, in a transceiver of a ship and of other water based communication devices, is demodulated and processed into a baseband TV signal and further processed and modulated into a CDMA or TDMA or OFDM modulated signal and transmitted to a mobile device. The mobile device in interactive communication with the transceiver controls the transceiver transmitted and received signal to and from the mobile device. | 10-04-2012 |
| 20130229977 | Multiple Access Spread Spectrum Switching Methodology - A low-cost, low-power, low-complexity, small, high-reliability, robust, seamless satellite communication network is described. The network performs encoding of a user signal at the customer premises to enable routing of the user signal to an appropriate destination beam at the satellite requiring low power user signal processing. Routing information is embedded at the periphery of the network CPE's rather than at the satellite. Embedding the routing information in this way greatly reduces on-board switching complexity and increases signal to interference ratio for the user. | 09-05-2013 |
| 20130229978 | Multiple Return Link - A system and method for improving efficiency of satellite communications is described. In one embodiment, multiple return links are associated with a single forward link to reduce communications costs. | 09-05-2013 |
| 20150318914 | HITLESS REARRANGEMENT OF A SATELLITE-HOSTED SWITCH VIA PROPAGATED SYNCHRONIZATION - An apparatus includes an analog front end to receive an analog input including user data, and an analog-to-digital converter to convert the analog input to digital signals including the user data. A digital channelizer may process the digital signals to generate frequency slices of user data, and a digital combiner may assemble the frequency slices to form output sub-bands of user data. A digital switch may route the frequency slices from the digital channelizer to the digital combiner according to a selected map of a plurality of available maps. The apparatus also includes a map selector to communicate map select data that indicates the selected map. The digital channelizer may receive and insert the map select data into the frequency slices in-band with the user data thereof. And the digital switch may interpret the map select data inserted into and route the frequency slices according to the selected map. | 11-05-2015 |
| 20160006500 | SATELLITE PACKET NETWORK FOR CELLULAR BACKHAUL OF ACCESS POINT DEVICES - Communication services can be provided through utilization of wireless access points that are connected to the core network (e.g., evolved packet core (EPC) of a Long Term Evolution LTE cellular system) via a set of satellite links. The efficiency of the satellite space segment is increased by employing an Orthogonal Frequency Division Multiple Access (OFDMA) and a scheduling scheme based on traffic demand, satellite channel conditions, and/or Quality of Service (QoS) requirement of a data flow. The satellite space segment is shared between all the wireless access points in the satellite's footprint, in a time and spectrally efficient manner, wherein the spectrum is used by a given wireless access point only when the wireless access point needs to transmit or receive packet data but otherwise is available to other wireless access points. | 01-07-2016 |
| 20160087713 | Methods and Apparatus for Providing Virtual Military Satellite Communication (MILSATCOM) Services Utilizing Shared Spectrum and Orbital Assignments - A virtual military satellite communication (Virtual MILSATCOM) network is described which supplements an existing military satellite communication (MILSATCOM) network in a manner consistent with existing Department of Defense funding issues, and a pricing model is provided to provide better pricing for expanding usage in the future. Co-location of Virtual MILSATCOM satellites and existing MILSATCOM satellites supports existing legacy users while providing more efficient usage of existing X-band frequencies. | 03-24-2016 |
| 20160088627 | PROCEDE DE GESTION DYNAMIQUE DE RESSOURCES ET SYSTEME ASSOCIE - A method of dynamic resource allocation for at least one satellite access network associated with at least one telecommunications satellite comprises a frequency-flexible payload, the at least one satellite access network comprises a plurality of resource allocation controllers. The method comprises the acquisition of the bandwidth desired by each resource allocation controller, reconfiguration of the payload of the at least one satellite considering the bandwidth desired by each resource allocation controller and the frequency resources available on board each satellite, and a step of frequency allocation to the various resource allocation controllers, considering the bandwidth desired by each resource allocation controller and the frequency resources available on board each satellite. | 03-24-2016 |
| 20160119054 | LAYER-2 CONNECTIVITY FROM SWITCH TO ACCESS NODE/GATEWAY - Methods, systems, and apparatuses for providing layer-2 connectivity through a non-routed ground segment network, are described. A system includes a non-autonomous gateway in communication with a satellite configured to relay data packets. The non-autonomous gateway is configured to receive the data packets from the satellite at layer-1 (LI) of the OSI-model, generate a plurality of virtual tagging tuples within the layer-2 packet headers of the plurality of data packets. The non-autonomous gateway is further configured to transmit, at layer-2 (L2) of the OSI-model, the virtually tagged data packets. Each of the packets may include a virtual tagging tuple and an entity destination. The system further includes a L2 switch in communication with the non-autonomous gateway. The L2 switch may be configured to receive the data packets and transmit the data packets to the entity based on the virtual tuples associated with each of the data packets. | 04-28-2016 |
| 20160134359 | Broadband multi-beam satellite radiocommunication system configured for improved frequency re-use and improved frequency re-use method - A broadband multi-beam satellite radiocommunication system configured to implement a scheme for re-use of frequencies from a total band allocated to an uplink comprises a satellite with a multi-beam receive antenna that forms adjacent reception spots of a terrestrial coverage. Each reception spot consists of a central inner zone and a peripheral zone. Each central inner zone is a cellular pattern identical except for a scale factor to geographical cells wherein the principal frequency sub-bands of a bundle of separate or adjacent principal sub-bands are unitarily distributed and the combination of which is equal to a principal band, included in the total band. | 05-12-2016 |
