Cell Projection Patents (Class 455/429)
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Patent number: 8432878Abstract: A communication network includes a plurality of network interface devices each covering a respective one of a plurality of cells. Each of the plurality of network interface devices communicates with communication entities in the respective cell using radio frames of the respective cell. The radio frames of a first one of the plurality of cells are shifted in time with respect to the radio frames of a second one of the plurality of cells.Type: GrantFiled: April 22, 2009Date of Patent: April 30, 2013Assignee: Industrial Technology Research InstituteInventors: Chun-Yen Wang, Chie-Ming Chou, Chi-Fang Li
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Patent number: 8417273Abstract: A method of performing a feedback for a multicast and broadcast service (MBS) is disclosed. A Multicast Broadcast Service (MBS) feedback method includes, generating, by a base station contained in a multi-cell multicast broadcast single frequency network (MBSFN) zone, a ranging channel code for a multicast broadcast service (MBS) feedback, allocating the ranging channel code to a mobile station contained in a cell zone of the base station, and receiving the MBS feedback information based on the ranging channel code from the mobile station. So, an adaptive modulation and coding (AMC) is applied to the MBS according to the NACK feedback, such that a throughput of the MBS system increases.Type: GrantFiled: December 17, 2008Date of Patent: April 9, 2013Assignee: LG Electronics Inc.Inventors: Ja Ho Koo, Su Nam Kim, Bin Chul Ihm, Hyun Soo Ko
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Patent number: 8406754Abstract: An apparatus and method for beamforming in a wireless communication system are provided. The base station apparatus includes a calculator, a plurality of formers, and a plurality of adders. The calculator calculates a beam coefficient considering interference to a neighbor sector to be applied to transmission signals to mobile stations. The plurality of formers performs beamforming for a transmission signal to each mobile station within a corresponding sector using the beam coefficient. The plurality of adders adds the sector-based beamformed signals each provided from the plurality of formers, on a per-transmission-antenna basis.Type: GrantFiled: February 27, 2008Date of Patent: March 26, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Heon-Ki Chae, Keun-Chul Hwang, Byoung-Ha Yi
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Patent number: 8396513Abstract: A communication system has a base station having an adaptive antenna with a plurality of main array antenna elements for generating a plurality of communication beams. The system further includes a gateway station coupled to the base station. The gateway station forms a plurality of beams commands by communicating plurality of a control signals to the base station to form the communication beams.Type: GrantFiled: May 15, 2001Date of Patent: March 12, 2013Assignee: The DIRECTV Group, Inc.Inventors: Donald C. D. Chang, Wah L. Lim, Ming U. Chang
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Patent number: 8380123Abstract: The present invention relates to a method of arranging distributed repeaters and distributed repeater system in a mobile communication system. In a method of arranging at least one base station and repeaters in a mobile communication system, a base station cell is formed and N repeater service areas are formed at boundaries of the base station cell. A base station is arranged at the center of the base station cell and N repeaters are arranged at boundaries between the base station service area and the repeater service areas. The number of repeaters is determined and output powers of the base station and the repeaters are determined according to a ratio of a base station service radius (R) to each repeater service radius (r). Accordingly, UARI or DARI is decreased, and coverage holes and excessive coverage overlaps can be remarkably reduced, so that network average capacity can be improved.Type: GrantFiled: December 29, 2008Date of Patent: February 19, 2013Assignee: KT CorporationInventor: Jae Seon Jang
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Patent number: 8380186Abstract: A space segment for a radioterminal communications system includes a satellite having service link antennas of different sizes that are configured to communicate with at least one radioterminal. The service link antennas of different size may serve different sized geographic areas, which may at least partially overlap. Analogous radioterminal communications methods also are provided.Type: GrantFiled: January 14, 2005Date of Patent: February 19, 2013Assignee: ATC Technologies, LLCInventor: Peter D. Karabinis
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Patent number: 8346162Abstract: A system and method of reducing VSAT apertures via satellite MIMO is disclosed.Type: GrantFiled: September 25, 2009Date of Patent: January 1, 2013Assignee: EMC SatCom TechnologiesInventors: Sriram Jayasimha, Jyothendar Paladugula
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Patent number: 8326282Abstract: A vehicle information system for passenger vehicles, such as automobiles and aircraft, and methods for manufacturing and using same. The vehicle information system includes a broadband communication system with a broadband antenna system and a broadband control system. Exploiting the advent of high-speed connectivity solutions, the vehicle information system supports a low-cost, high-capacity bidirectional data connection with a terrestrial content system and thereby can be established as another node on the “Worldwide Net.” The vehicle information system likewise provides wireless access points for communicating with passengers' personal media devices. As desired, the vehicle information system can support mobile telephone connectivity and/or presentation of live integrated digital television (IDTV) programming. The vehicle information system thereby provides enhanced information, entertainment, and communication services during travel.Type: GrantFiled: September 24, 2008Date of Patent: December 4, 2012Assignee: Panasonic Avionics CorporationInventor: Paul Anthony Margis
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Patent number: 8320829Abstract: A system and method for enabling on-demand inter-spacecraft resource sharing and coordination are disclosed involving at least one wireless device and a payload. At least one wireless device transmits and receives communications to at least one access point and at least one user. In one or more embodiments, spacecrafts are employed for the access points and/or the users. The payload comprises at least one transponder and at least one processor. At least one transponder transmits and receives the communications to at least one access point and at least one user. The processor provides channelized communication and regenerative communication to at least one user. Also, the processor monitors signal quality of the communications received from at least one user. In one or more embodiments, the wireless device is a radio frequency (RF) omni-directional antenna. In some embodiments, the wireless device is a diffuse optical emitter and receiver.Type: GrantFiled: June 22, 2009Date of Patent: November 27, 2012Assignee: The Boeing CompanyInventors: Brian A. Clebowicz, Jeff Nocket
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Patent number: 8285278Abstract: A space-based component, such as a satellite, is configured to receive wireless communications from radiotelephones in a satellite footprint over an uplink satellite radiotelephone frequency, and to transmit wireless communications to the radiotelephones over a downlink radiotelephone frequency. An ancillary terrestrial network, that may include one or more ancillary terrestrial components, is configured to transmit wireless communications to, and receive wireless communications from, the radiotelephones over the downlink satellite radiotelephone frequency in a time-division duplex mode. By terrestrially transmitting and receiving wireless communications over the downlink satellite radiotelephone frequency in a time-division duplex mode, interference at the space-based component and/or at the gateway, by the ancillary terrestrial network and/or the radiotelephones due to terrestrial reuse of cellular satellite frequency spectrum, may be reduced or eliminated.Type: GrantFiled: August 13, 2009Date of Patent: October 9, 2012Assignee: ATC Technologies, LLCInventor: Peter D. Karabinis
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Patent number: 8270900Abstract: Implementations are described that use a control center to maintain a list of registered mobile platforms that are pre-authorized to make use of the satellite-based transponder to transmit and receive data content to and from the base transceiver. The control center may cause the base transceiver to transmit at least one polling message, the polling message carries information addressed to a specific aggregate group of the registered mobile platforms and includes a return channel which may be used by a mobile platform to communicate with the base transceiver. In one implementation, the control center protects the system from exceeding power spectral density (PSD) statistical limits by using the mobile platform in the group that has a greatest power spectral density signal as the PSD that the aggregate group will generate.Type: GrantFiled: May 26, 2006Date of Patent: September 18, 2012Assignee: The Boeing CompanyInventors: David S. Parkman, Christopher J. McLain, Paulus J. Martens, Janet L. King
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Patent number: 8249585Abstract: Apparatus, methods and computer program products that support inter-PLMN coordination in registration and handover operations are provided. Hysteresis is introduced in registration of radioterminals in a hybrid terrestrial/satellite mobile communications environment. Inter-PLMN handover techniques are provided, including techniques for coordination of communication of timing information and traffic channel controls.Type: GrantFiled: March 1, 2010Date of Patent: August 21, 2012Assignee: ATC Technologies, LLCInventors: Jérome Tronc, Christian Calamarte, Michel Mouly, Santanu Dutta
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Patent number: 8244280Abstract: Apparatus, and an associated method, for facilitating paging of access terminals by way of a quick page message. A partial identity comparison scheme is utilized. Identifiers of access terminals that are to be paged in the quick page message are determined and compared. In the event that the identifiers are of redundant values, the redundant values are removed, thereby to provide additional locations in the quick page message that are not redundant for use better to page the access terminals that are to be paged.Type: GrantFiled: September 5, 2006Date of Patent: August 14, 2012Assignee: Research In Motion LimitedInventor: William Daniel Willey
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Patent number: 8238816Abstract: The invention relates to methods, systems, and satellites that employ an off-set pattern of spot-beams to transmit signals or television signals over a desired area of the earth. In one example, a heavily populated metropolitan area in the continental United States is covered by at least two patterns of spot-beams, where the patterns are off-set to one another by a lateral or translational displacement, rotation, or both. The off-set patterns can be used in conjunction with existing satellites and systems and incorporated into new satellites and systems. The methods reduce problems associated with the straddling of subscriber areas caused by local-into-local requirements, and advantageously allow increased spot-beam capacity, and the reduction in earth uplink stations.Type: GrantFiled: October 11, 2005Date of Patent: August 7, 2012Assignee: Spectrum Five LLCInventor: John D. Kiesling
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Publication number: 20120196592Abstract: A system or method is disclosed which employs filters on a satellite whose bandwidth is varied by ground command to restrict interference experienced by a satellite as an auxiliary terrestrial component (ATC) system is increased to a multiplicity of cities and markets. Thus there is provided a novel method and system which optimizes overall MSS and ATC traffic.Type: ApplicationFiled: April 12, 2012Publication date: August 2, 2012Inventors: Paul A. Monte, Vijaya Gallagher
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Patent number: 8223733Abstract: A mobile wireless communications system including a plurality of individual transponding nodes of various types, all in communication with a central processing hub. A local user signal is processed by the central processing hub and radiated through multiple paths to a plurality of the plurality of individual transponding platforms simultaneously. The signal is then re-radiated by each of the plurality of the plurality of individual transponding platforms to a mobile terminal that receives the re-radiated signal from the plurality of the plurality of individual transponding platforms coherently and in phase. The number of transponders and codes used to transmit each user signal can be readily adapted to user requirements.Type: GrantFiled: February 2, 2005Date of Patent: July 17, 2012Assignee: The DIRECTV Group, Inc.Inventors: Kar W. Yung, Frank A. Hagen, Donald C. D. Chang
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Patent number: 8218477Abstract: A wireless communication system includes the ability to determine that a fault condition associated with at least a portion of a cell associated with a base station is likely. Disclosed examples include using information regarding call activity levels of various portions of a cell for determining an expected call activity level for at least one portion of the cell. One example includes using the least active portion of the cell as the portion of interest. Previously observed activity levels provide information to automatically determine an expected relationship between the activity levels of the portions of the cell. Disclosed examples include determining whether a deviation between the actual call activity level and the expected call activity level is statistically significant enough to indicate a fault condition with at least the portion of the cell, which is of interest.Type: GrantFiled: March 31, 2005Date of Patent: July 10, 2012Assignee: Alcatel LucentInventor: Sudarshan A. Rao
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Patent number: 8213930Abstract: Systems and methods for signalling transitions between talk-spurt state and silence state for wireless terminals having semi-persistently allocated uplink resources are employed. A layer 1/2 indication of the state transitions may be transmitted using a resource that is specifically allocated for that purpose. Alternatively, ACK/NACK signalling may be employed. Layer 1 indications may be employed for both state transition types. Alternatively, in-band MAC layer signalling may be used to signal state transition from talk-spurt state to silence, or the network may deduce this state transition on its own. A different uplink wireless transition resource is allocated for the talk-spurt state vs. the silence state.Type: GrantFiled: September 26, 2011Date of Patent: July 3, 2012Assignee: Research In Motion LimitedInventors: Zhijun Cai, James Earl Womack, Takashi Suzuki
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Patent number: 8190084Abstract: Systems and methods of supporting a communication session are provided. A first endpoint is authenticated with a terrestrial wireless communication network, wherein the first endpoint is in wireless communication with a satellite communication network. A quality of service is determined for communications exchanged between the first endpoint and a second endpoint supported by the terrestrial communication network. Communications are exchanged between the first and second endpoints in accordance with the determined quality of service.Type: GrantFiled: July 10, 2008Date of Patent: May 29, 2012Assignee: Nextel Communications Inc.Inventor: Don Gunasekara
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Patent number: 8188995Abstract: Methods and arrangements for provide for an estimation of a cell radius in a mobile telecommunications network. The arrangement comprises a processor which estimates path loss by using an arbitrary path loss estimation method wherein at least a pre-defined cell radius is used as input. The use of the arbitrary path loss estimation method results in a path loss data file comprising values associated with signal strength for pixels within the cell defined by the first cell radius. The processor also estimates a first updated cell radius by excluding pixels having a signal strength below a predetermined threshold from the cell area having the pre-defined cell radius, wherein the first updated cell radius is the cell radius of the remaining cell area when the pixels are excluded.Type: GrantFiled: May 25, 2005Date of Patent: May 29, 2012Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventor: Stefan Engström
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Patent number: 8189504Abstract: Systems, devices, processors, and methods are described which may be used for the reception of a wireless broadband signal at a user terminal from a gateway via a satellite. A wireless signal may include a series of physical layer frames, each frame including a physical layer header and payload. The received signal is digitized and processed using various novel physical layer headers and related techniques to synchronize the physical layer frames and recover data from physical layer headers for purposes of demodulation and decoding.Type: GrantFiled: June 17, 2009Date of Patent: May 29, 2012Assignee: ViaSat, Inc.Inventors: Donald W. Becker, Matthew D. Nimon, William H. Thesling
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Patent number: 8170627Abstract: A wireless communication system having a terminal unit operates in a reduced noise state during receipt of a wireless transmission from a control unit. The terminal unit includes terminal circuitry, a radio and noise management circuitry. The noise management circuitry partially or fully disables operation of the terminal circuitry during a receipt by the radio. Noise management circuitry may disable a terminal processor, disable interrupts, buffer interrupts and otherwise modify operation of the terminal circuitry to reduce generated radio noise that would otherwise interfere with receipt of data by the radio. The wireless communication system includes noise management circuitry located in a control unit that operates in conjunction with noise management circuitry in a first terminal unit and a second terminal unit to schedule transmissions from the control unit. These scheduled transmissions allow the terminal units to perform required processing functions outside of the reduced noise period.Type: GrantFiled: December 15, 2007Date of Patent: May 1, 2012Assignee: Intermec IP Corp.Inventors: Robert J. Grabon, John K. Rohde, Robert J. Traeger, Patrick R. Erb, Daniel E. Alt, Daniel J. Klostermann
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Patent number: 8160594Abstract: A radio propagation path from a transmitting point to a receiving point is estimated accurately with a relatively small amount of calculation. A predetermined-size receiving area including the receiving point is set, radio propagation paths from the transmitting point to the receiving area is estimated by a ray launching method, object surfaces existing in the paths are extracted, and a radio propagation path from the transmitting point to the receiving point is estimated by an imaging method using only the extracted object surfaces.Type: GrantFiled: December 28, 2006Date of Patent: April 17, 2012Assignee: Hitachi, Ltd.Inventors: Yoshihito Sato, Yoshinori Okura
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Patent number: 8150313Abstract: A device (D) is dedicated to transmitting and/or receiving signals representative of data in a communication satellite (SAT) having a fixed frequency bandwidth. This device (D) comprises transmission and/or reception means (MER) responsible for sending and/or receiving signals in multiple beams, and control means (MC) responsible for defining a chosen number of cells of chosen dimensions and positions, and configuring the transmission and/or reception means (MER) so as to define beams each associated with at least one of the defined cells, with a chosen carrier frequency based on the requirements of each of the cells and taking into account the frequency bandwidth available on the satellite (SAT).Type: GrantFiled: September 22, 2006Date of Patent: April 3, 2012Assignee: ThalesInventors: Jean-Didier Gayrard, Eric Belis
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Patent number: 8145123Abstract: A beam forming apparatus of a satellite is configured to: define a perimeter of a coverage area, and define a coordinate grid of a polar coordinate system so as to divide the coverage area into a plurality of small areas; calculate coordinates of borders between basic cells in a Cartesian coordinate system, the basic cells being shaped into regular hexagons arranged to be in contact with one another along their sides and at their vertices or into circles circumscribing the regular hexagons; define a plurality of new cells by converting, through coordinate transformation, the coordinates of the borders between the basic cells in the Cartesian coordinate system into coordinates of borders in the polar coordinate system; and set amplitudes and phases to the plurality of antenna devices that are suitable to form a plurality of beams in respective directions of the plurality of new cells.Type: GrantFiled: November 10, 2009Date of Patent: March 27, 2012Assignee: Mitsubishi Electric CorporationInventors: Shinichi Yamamoto, Tamotsu Nishino, Izuru Naito, Yoshihiko Konishi
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Patent number: 8145218Abstract: A device includes a first wireless transceiver initiating a communication session; and a second wireless transceiver. The device shifts the communication session to the second wireless transceiver if a signal strength of the first wireless transceiver is below a predetermined level and the signal strength is not expected to increase above the predetermined level.Type: GrantFiled: September 22, 2008Date of Patent: March 27, 2012Assignee: Motorola Solutions, Inc.Inventors: Janusz Hyziak, Peisong Huang
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Patent number: 8131211Abstract: A system is provided for enhancing coverage for a mobile satellite service, the system comprising a signal threshold comparator module for monitoring a predetermined threshold for a satellite service signal received on a first frequency band, a signal gain block operable to vary amplification of the satellite service signal received on a second frequency band in response to the threshold, and a satellite receiver for decoding the satellite service signal received on the first and second frequency bands.Type: GrantFiled: March 31, 2008Date of Patent: March 6, 2012Assignee: General Motors LLCInventor: Matt C. Videtich
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Patent number: 8116762Abstract: Aeronautical communication services is disclosed. For example, an aeronautical vehicle for use in a first aeronautical communication system to allow communication to and from a land-based station is disclosed, wherein the land-based station transmits communications using a first low frequency band and receives communications using a second low frequency band in accordance with a second aeronautical communication system. In the first aeronautical communication system, the aeronautical vehicle transmits communications using the first low frequency band and receives communications using the second low frequency band.Type: GrantFiled: October 25, 2005Date of Patent: February 14, 2012Assignee: Qualcomm IncorporatedInventor: Samir S. Soliman
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Patent number: 8107875Abstract: A method and system are presented for operating a multibeam satellite system involving positioning a plurality of service beams associated with a plurality of service beam coverage areas and positioning a feeder beam associated with a feeder beam coverage area. The feeder beam coverage area is at a proximity to at least one service beam coverage area. The feeder beam coverage area includes at least one gateway. Each of the plurality of service beam coverage areas uses a color. The at least near service beam coverage area uses at least one color from the plurality of colors. The feeder beam uses at least one color, excluding the at least one color used by the at least one near service beam coverage area.Type: GrantFiled: March 25, 2009Date of Patent: January 31, 2012Assignee: ViaSat, Inc.Inventor: Mark J. Miller
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Patent number: 8103270Abstract: A communication system has a high altitude communication device that has an antenna for directing beams to a fixed cell pattern with a polarity of cells. A specific pattern of cells having the same communication resource is provided. Cells having the same resource may be separated. The antenna is shaped to suppress interference with locations having the same resource. The areas not having the same resource are not suppressed to allow the system to have maximum capacity and allow a smaller antenna aperture.Type: GrantFiled: March 11, 2008Date of Patent: January 24, 2012Assignee: The DIRECTV Group, Inc.Inventors: Harold Rosen, Ying Feria, Parthasarathy Ramanujam
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Patent number: 8081966Abstract: The RF circuit switching circuit includes N/2 first RF transfer switches connected to N input wirings, N/2 second RF transfer switches connected to N output wirings and N internal connection routes including internal wirings or a combination of a plurality of third RF transfer switches and a plurality of internal wirings. The RF transfer switches on the routes are switched to connect each of the N input RF circuits to each of the N output RF circuits through the route including the first and second RF transfer switch and the internal connection route.Type: GrantFiled: May 30, 2008Date of Patent: December 20, 2011Assignee: Fujitsu LimitedInventor: Sumito Nakazawa
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Patent number: 8068828Abstract: A space-based component, such as a satellite, is configured to receive wireless communications from radiotelephones in a satellite footprint over an uplink satellite radiotelephone frequency, and to transmit wireless communications to the radiotelephones over a downlink radiotelephone frequency. An ancillary terrestrial network, that may include one or more ancillary terrestrial components, is configured to transmit wireless communications to, and receive wireless communications from, the radiotelephones over the downlink satellite radiotelephone frequency in a time-division duplex mode. By terrestrially transmitting and receiving wireless communications over the downlink satellite radiotelephone frequency in a time-division duplex mode, interference at the space-based component and/or at the gateway, by the ancillary terrestrial network and/or the radiotelephones due to terrestrial reuse of cellular satellite frequency spectrum, may be reduced or eliminated.Type: GrantFiled: August 31, 2009Date of Patent: November 29, 2011Assignee: ATC Technologies, LLCInventor: Peter D. Karabinis
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Patent number: 8032157Abstract: A method includes receiving location area-related information, associating the location area-related information with a neighbor cell information to determine if a cell belongs to a forbidden location area, and avoiding selection of the cell if the cell is determined to belong to the forbidden location area. Embodiments described include a UE, network element, computer program product, and integrated circuit.Type: GrantFiled: August 15, 2006Date of Patent: October 4, 2011Assignee: Nokia CorporationInventors: Lars Dalsgaard, Whui Mei Yeo, Harri Jokinen, Hannu Hietalahti
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Patent number: 8032134Abstract: A wireless communication system for transmitting signals having a wireless positioning system being responsive to incoming signals for processing the same to generate coordinate information for determining the position of said wireless communication system, in accordance with an embodiment of the present invention. The wireless communication system further includes a phase controller module being responsive to said coordinate information for controlling the phase of the output signals for transmission in a specified direction by performing beamforming, said wireless communication system for performing beamforming to increase the range of transmission of said output signals.Type: GrantFiled: April 24, 2007Date of Patent: October 4, 2011Assignee: Ralink Technology CorporationInventor: Chien-Cheng Tung
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Patent number: 7996228Abstract: Embodiments of voice initiated network operations are presented herein. Voice initiation of operations is described which may be utilized to assist a user in performing operations, such as when other input mechanisms are undesirable, inconvenient, or impossible. A user provides speech to a client device. The speech is converted to text. The text is used to perform operations and obtain results.Type: GrantFiled: December 22, 2005Date of Patent: August 9, 2011Assignee: Microsoft CorporationInventors: Quentin Miller, John J. Ostlund, Anand Ramakrishna
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Patent number: 7907893Abstract: A cellular communications system comprising a space based system comprising a first set of cells, and a ground based system comprising a second set of cells. The space and ground systems can optionally function substantially autonomously, with each using spectrum from at least one predetermined frequency band.Type: GrantFiled: September 28, 2006Date of Patent: March 15, 2011Assignee: ATC Technologies, LLCInventors: Peter D. Karabinis, Rajendra Singh
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Patent number: 7907944Abstract: A signal is received at a component of the wireless CDMA communications system, such as a base station or satellite gateway. A plurality of data sets is generated from the received signal, respective ones of the plurality of data sets corresponding to respective access probes received, for example, over the reverse access channel (R-ACH) or reverse enhanced access channel (R-EACH). At least some of the plurality of data sets are jointly decoded to recover an access probe payload.Type: GrantFiled: June 29, 2006Date of Patent: March 15, 2011Assignee: ATC Technologies, LLCInventor: Gary G. Churan
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Patent number: 7890051Abstract: A reach back secure communications terminal includes a modem to satellite interconnect board that captures DTMF tones, demodulates encrypted modem information, and converts both into an ASCII string for presentation to a data port of a satellite phone, allowing out-of-band control of a non-secure satellite system (e.g., AT command control of a data port) by a user on a secure side of an encryption device, by including the ability to interpret control signals and control the satellite system appropriately. A false dial tone is presented to the encryption device, and the data stream coming from the encryption device is monitored for the presence of dual-tone, multi-frequency (DTMF) tones representing control signals, the DTMF tones are converted to ASCII characters, which are in turn received as control signals by the satellite phone, allowing control of the functions of the satellite system directly from the secure side of the encryption device.Type: GrantFiled: January 20, 2010Date of Patent: February 15, 2011Assignee: TeleCommunication Systems, Inc.Inventors: Fiona S. Best, Dorothy A. McClintock, William Jeremy Lee, Wesley R. Hartwell, Eric Reed
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Patent number: 7890098Abstract: A satellite radiotelephone system can include a space-based component and a plurality of ancillary terrestrial components. The space-based component is configured to provide wireless radiotelephone communications over a satellite radiotelephone frequency band. The plurality of ancillary terrestrial components are configured to terrestrially reuse at least one of the satellite radiotelephone frequencies, at least some of the ancillary terrestrial components terrestrially reusing the at least one of the satellite radiotelephone frequencies in a staggered sectorization. Related methods are also discussed.Type: GrantFiled: April 28, 2006Date of Patent: February 15, 2011Assignee: ATC Technologies, LLCInventor: Peter D. Karabinis
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Patent number: 7890052Abstract: A communication system has a stratospheric platform with a payload controller and a phased array antenna having a plurality of main array elements for generating a plurality of communication beams and a plurality of auxiliary elements for canceling interference between the communication beams. A gateway station communicates with the stratospheric platform. The gateway station scales the plurality of elements to form a reconfigurable plurality of beams. The gateway station communicates an embedded control signal to the stratospheric platform to communicate a scaling of elements to form the communication beams and the auxiliary element output. The auxiliary element output is used to provide interference canceling.Type: GrantFiled: October 30, 2007Date of Patent: February 15, 2011Assignee: The DIRECTV Group, Inc.Inventors: Donald C Chang, Alan Cha, Jacqueline C Chen, Frank A Hagen
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Patent number: 7890097Abstract: A satellite radiotelephone frequency band can be reused terrestrially by an ancillary terrestrial network even within the same satellite cell, using interference reduction/cancellation techniques. An interference reducer is responsive to a space-based component and to an ancillary terrestrial network. The interference reducer is configured to reduce interference in wireless communications that are received by the space-based component from first radiotelephones in the satellite footprint over a satellite radiotelephone frequency band using wireless communications that are received by the ancillary terrestrial network from selected ones of second radiotelephones in the satellite footprint over the satellite radiotelephone frequency band and/or wireless communications that are transmitted by the ancillary terrestrial network to the second radiotelephones in the satellite footprint over the satellite radiotelephone frequency band.Type: GrantFiled: August 12, 2009Date of Patent: February 15, 2011Assignee: ATC Technologies, LLCInventor: Peter D. Karabinis
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Patent number: 7831251Abstract: A cellular communications system comprising a space based system comprising a first set of cells, and a ground based system comprising a second set of cells. The space and ground systems can optionally function substantially autonomously, with each using spectrum from at least one predetermined frequency band.Type: GrantFiled: March 1, 2005Date of Patent: November 9, 2010Assignee: ATC Technologies, LLCInventors: Peter D. Karabinis, Rajendra Singh
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Patent number: 7831261Abstract: A communication terminal capable of efficiently performing download of a file is provided. A communication terminal 1 includes an input detection section 10, a request section 12, a reception section 14, and a recognition section 16. When the input detection section 10 detects an input of an information request number by a user, the request section 12 transmits a request to a network 6 to transmit a service-availability information. The service-availability information consists of area information indicating whether or not a serving cell of the communication terminal 1 is included in an HSDPA service area and resource information indicating whether or not allocation of HSDPA resource to the communication terminal 1 is possible, when the serving cell of the communication terminal 1 is included in the HSDPA service area.Type: GrantFiled: December 13, 2005Date of Patent: November 9, 2010Assignee: NTT DoCoMo, Inc.Inventors: Nobukazu Uno, Hiromi Himeno
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Patent number: 7796985Abstract: Information content is nonidentically mapped between service link carriers and feeder link carriers at a cellular satellite. A reduced number of satellite feeder link carriers compared to the number of satellite service link carriers and/or a reduced total bandwidth of the satellite feeder link carriers compared to the satellite service link carriers thereby may be obtained.Type: GrantFiled: June 30, 2009Date of Patent: September 14, 2010Assignee: ATC Technologies, LLCInventor: Peter D. Karabinis
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Patent number: 7792488Abstract: A signal strength that is associated with a first wireless communications channel is detected. Electromagnetic energy is transmitted over the first wireless communications channel in response to the signal strength being sufficiently weak. A determination is made whether a handoff should be made to a second wireless communications channel having a signal that is weaker than a signal of the first wireless communications channel. Related systems and methods are described.Type: GrantFiled: January 27, 2009Date of Patent: September 7, 2010Assignee: ATC Technologies, LLCInventors: Peter D. Karabinis, Rajendra Singh
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Patent number: 7783248Abstract: A method and apparatus for connecting a primary uplink site and a diverse uplink site includes a satellite and a communication line that couples the primary uplink site and the diverse uplink site. The primary uplink site receives television signals and communicates the signals over the communication line using a video-over-internet protocol. The primary site forms primary uplink signals and selectively communicates the primary uplink signals to the satellite. The diverse uplink site receives the television signals from the primary uplink site through the communication line and forms the diverse uplink signals and selectively communicates the diverse uplink signals to the satellite.Type: GrantFiled: September 29, 2006Date of Patent: August 24, 2010Assignee: The DIRECTV Group, Inc.Inventors: Cecilia C. Comeaux, Wayne Ladrach, Benjamin Mui, Hanno Basse
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Patent number: 7783288Abstract: A remote mobile network part (2, 11, 12) may be on an aircraft, a ship, or in a geographically remote location. It comprises a gateway (6) which communicates with a central gateway (9) via a satellite link. The two gateways (6, 9) together are a base station controller (BSC), the satellite link being used for BSC-internal communication. Such communication can be optimised to make best use of the limited bandwidth available on the satellite link.Type: GrantFiled: March 1, 2006Date of Patent: August 24, 2010Assignee: Slieve Mish Inventions LimitedInventors: Guy Waugh, Michael Fitzgerald, Christopher Young, Michael Godley, Richard Lord
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Patent number: 7747257Abstract: GPS assistance message and data issue identifiers for transmission to GPS enabled mobile stations in cellular communications networks and methods therefore. The GPS data issue identifiers indicate whether GPS data, for example corresponding ephemeris and almanac data, stored at the mobile station requires updating. In the exemplary 3rd generation (W-CDMA/UMTS) architecture, the GPS assistance message is a System Information Block (SIB), and the GPS ephemeris data identifier and corresponding satellite identifier is encoded in a value tag included in a Master Information Block (MIB).Type: GrantFiled: February 16, 2001Date of Patent: June 29, 2010Assignee: Motorola, Inc.Inventors: Yilin Zhao, Thomas M. King, George J. Geier
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Patent number: 7706787Abstract: A method of flexibly allocating capacity in a satellite coverage area, comprising establishing a frequency reuse pattern of at least two interleaved sets of cells, assigning a polarization to each set of cells, such that adjacent sets of cells alternate in orthogonal polarization, flexibly assigning satellite transmit power to at least one cell, flexibly assigning frequency and bandwidth to at least one cell, and moving frequencies, bandwidths, and satellite transmit power among the cells within each set, independently of the other sets, ensuring that at all times no two adjacent cells within a given set share a common frequency.Type: GrantFiled: March 21, 2007Date of Patent: April 27, 2010Assignee: Com Dev International Ltd.Inventors: Alastair Malarky, Trevor Jones
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Patent number: 7706746Abstract: A cellular communications system comprising a space based system comprising a first set of cells, and a ground based system comprising a second set of cells. The space and ground systems can optionally function substantially autonomously, with each using spectrum from at least one predetermined frequency band.Type: GrantFiled: July 11, 2005Date of Patent: April 27, 2010Assignee: ATC Technologies, LLCInventors: Peter D. Karabinis, Rajendra Singh