Time Division (tdma) Patents (Class 370/321)
  • Patent number: 8718569
    Abstract: A method of provisioning a communications link between remote terminals within a hub-spoke network comprising receiving, by a first remote terminal, information about a second remote terminal from a hub, selecting, by the first remote terminal, a modulation factor, coding rate, symbol rate, center frequency, and power level based on the information received about the second remote terminal, transmitting, by the first remote terminal, a signal using at least one of the selected modulation factor, coding rate, symbol rate, center frequency, and power level, to the second remote terminal such that a communications link is created, and adjusting the modulation factor, coding rate, symbol rate, center frequency, or power level of the transmitted signal such that performance of the link is increased while maintaining a presence of the link.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: May 6, 2014
    Assignee: Comtech EF Data Corp.
    Inventors: Vasile Manea, Michael Beeler, Frederick Morris, Jeffery Harig
  • Patent number: 8717970
    Abstract: The present invention discloses a method and system for transferring TDM services in GPON, the method includes the steps of: in the case of performing the GPON ranging process, buffering the uplink TDM service data received by an optical signal transceiver in an Input Buffer, reading out and transferring the uplink TDM service data buffered in an Output Buffer. The present invention eliminates the possible interruption of TDM services during the GPON ranging process by buffering the uplink services at the OLT and ONU/ONT side and relevant processes, and therefore realizes the TDM service transmission without any loss during the GPON system ranging process.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: May 6, 2014
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yan Xiong, Jun Zhao, Wanwan Wang
  • Patent number: 8711802
    Abstract: A communication apparatus communicates by switching between a first communication period in which contention access control is performed and a second communication period in which non-contention access control is performed. The apparatus determines the state of access contention in the first communication period, changes the frequency bandwidth of the first or second communication period in accordance with the determination and changes the time ratio between the first communication period and the second communication period in accordance with the change of frequency bandwidth.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: April 29, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kazunari Watanabe
  • Publication number: 20140105100
    Abstract: A payload for a repeater satellite of a communication system. The repeater satellite being placed into drift orbit above the surface of a celestial body. The payload being configured to repeat data received from a stationary satellite above the surface of the celestial body towards a terminal substantially at the surface of the celestial body, and to repeat data received from the terminal towards the stationary satellite.
    Type: Application
    Filed: June 1, 2012
    Publication date: April 17, 2014
    Applicant: Astrium sas
    Inventors: Jerom Tronc, Jean-Christophe Dunat
  • Patent number: 8699544
    Abstract: System and method for enabling the cohabitation of licensed and unlicensed communications devices. A method comprises at a receiver, receiving transmitted data, demodulating the transmitted data to produce spread symbols, despreading the spread symbols to produce received data, wherein the despreading comprises using an orthogonal sequence selected from a list of orthogonal sequences for use by all transmissions in the wireless network, and processing the received data.
    Type: Grant
    Filed: May 2, 2008
    Date of Patent: April 15, 2014
    Assignee: FutureWei Technologies, Inc.
    Inventor: Soo-Young Chang
  • Patent number: 8699422
    Abstract: An estimate of a cost of allocating radio resources available for allocation to a at least one radio link within a cell is generated in dependency of which radio resources have been used within the cell at previous times. This cost estimate can be compared to a quality gain of allocating the radio resources to the radio link, and an allocation decision can be made in dependency of the comparison result.
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: April 15, 2014
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Per Skillermark, Anders Furuskar
  • Patent number: 8693432
    Abstract: The high quality PCS communications are enabled in environments where adjacent PCS service bands operate with out-of-band harmonics that would otherwise interfere with the system's operation. The highly bandwidth-efficient communications method combines a form of time division duplex (TDD), frequency division duplex (FDD), time division multiple access (TDMA), orthogonal frequency division multiplexing (OFDM), spatial diversity, and polarization diversity in various unique combinations. The method provides excellent fade resistance. The method enables changing a user's available bandwidth on demand by assigning additional TDMA slots during the user's session.
    Type: Grant
    Filed: October 30, 2012
    Date of Patent: April 8, 2014
    Assignee: AT&T Mobility II LLC
    Inventors: Siavash Alamouti, Eduardo F. Casas, Michael Hirano, Elliott Hoole, Mary Jesse, David G. Michelson, Patrick Poon, Gregory J. Veintimilla, Hongliang Zhang
  • Patent number: 8681177
    Abstract: Upon receiving a communication switching instruction from a first wireless access point used for communication with an image processing apparatus, an image display apparatus disconnects communication with the first wireless access point. Simultaneously, the image display apparatus transmits, to a second wireless access point, a link request to establish communication with the second wireless access point of a new communication destination included in the switching instruction. The image display apparatus displays, on a display unit, a captured image continuously acquired from am image capturing unit until switching from the first wireless access point to the second wireless access point finishes as communication destination switching.
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: March 25, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takuya Tsujimoto
  • Patent number: 8682292
    Abstract: A GSM or UMTS mobile telecommunications network is disclosed. In addition to the conventional radio access network comprising the base stations, one or more additional access points are provided. An access point is connected to the network core by an IP transport broadband connection. The access point is configured to appear to the mobile terminal as a conventional base station—that is, it communicates with the mobile terminal using GSM or UMTS transport protocols and does not require any modification to a standard GSM or UMTS mobile terminal. Access Points are typically not under the direct control of the network provider. Arrangements are disclosed which allow the network provider to verify that the access point a mobile terminal is about to commence communicating through is at a particular location. Differential charging may be performed in dependence upon a subscriber's location.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: March 25, 2014
    Assignee: Vodafone Group PLC
    Inventors: Jonathon Batkin, Jose Luis Carrizo Martinez
  • Patent number: 8676252
    Abstract: A method for dual mode mobile terminal in an MIMO wireless communication system is disclosed. The present invention includes the steps of if an uplink transmission mode is for simultaneous transmission to an LTE base station and a CDMA base station, determining whether a transmission power to the LTE base station is equal to or greater than a threshold value, transmitting a simultaneous transmission mode dedicated scheduling request signal for excluding a risky frequency band from an uplink band to the LTE base station, receiving a scheduling information on the uplink band except the risky frequency band from the LTE base station, transmitting a CS service signal to the CDMA base station, and transmitting a PS service signal to the LTE base station using the scheduling information.
    Type: Grant
    Filed: August 2, 2011
    Date of Patent: March 18, 2014
    Assignee: LG Electronics Inc.
    Inventors: Seungpyo Noh, Sangjo Park, Jaehyuk Jang, Yongsang Cho
  • Patent number: 8675530
    Abstract: A method for enhancing power saving performance of user equipment (UE) is provided. The method includes the following steps: a UE receives the downlink data transmitted by an evolved node B (eNB); the UE starts a corresponding RTT Timer according to the received downlink data, the timing of the RTT Timer is determined based on the uplink/downlink (UL/DL) configuration and the sub-frame number of the downlink sub-frame carrying the downlink data by the UE; and the UE controls the discontinuous reception (DRX) process according to the RTT Timer. By re-defining the RTT Timer, the present invention can improve power saving performance of the UE in TDD system effectively.
    Type: Grant
    Filed: November 3, 2009
    Date of Patent: March 18, 2014
    Assignee: China Academy of Telecommunications Technology
    Inventors: Guoqing Li, Li Chen, Zhuo Gao
  • Patent number: 8670374
    Abstract: A wireless mesh network with dynamic back off for reduced power consumption is generally described herein. In some embodiments, the wireless mesh network includes a network controller to configure a data frame comprising a sync period followed by at least one data period and a plurality of network nodes configured to operate in at least one of a network-running mode and a sleep/RF quiet mode. The network controller is configured to transmit synchronization messages during a first portion of the sync period and receive upstream requests from the network nodes during a second portion of the sync period. During the sleep/RF quiet mode, the network nodes are configured to wake up periodically during a listening interval for detection of a synchronization message from the network controller, and return to the sleep/RF quiet mode and increase a back-off time between listening intervals for increasingly longer periods when no synchronization message is detected.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: March 11, 2014
    Assignee: Raytheon Company
    Inventors: Anthony Paul Bata, Kenneth Ray Crismon, David Kramer, Randy Lyle Engle
  • Patent number: 8670430
    Abstract: A method of multiplexing control information and data information in a wireless communication system is disclosed. The present invention includes mapping codewords corresponding to the data information to a preset number of layers, mapping the control information to the preset number of the layers, multiplexing the layer-mapped data information and the layer-mapped control information into a frequency region within an SC-FDMA symbol, and transmitting the SC-FDMA symbol to a base station via multiple antennas.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: March 11, 2014
    Assignee: LG Electronics Inc.
    Inventors: Dae Won Lee, Ki Jun Kim, Joon Kui Ahn, Byeong Woo Kang, Yu Jin Noh, Byoung Hoon Kim, Bong Hoe Kim
  • Patent number: 8670372
    Abstract: A system and method for dynamically dividing the capacity of a fixed time division multiplexing (TDM) frame between physical channels for data transmission. According to various embodiments, a time frequency frame is divided into a plurality of subframes, and each of the plurality of subframes are divided into a plurality of corresponding slots. The plurality of slots are then selectively time shifted such that a defined time shift exists between corresponding slots in each subframe within the time frequency frame. For any slots or slot portions which have been selectively shifted beyond the end of the time frequency frame, such slots or slot portions are cyclically shifted to the beginning of the frame. Service data is then written into the slots of the time frequency frame, and the frame containing the service data can then be transmitted. Initialization and service access processes for a receiver are also provided.
    Type: Grant
    Filed: June 3, 2008
    Date of Patent: March 11, 2014
    Assignee: Nokia Corporation
    Inventors: Harri J. Pekonen, Jani Väre, Jussi Vesma
  • Publication number: 20140064125
    Abstract: A satellite communication system includes a hub and one or more terminals, wherein the one or more terminals may be configured to communicate over a satellite with the hub using a segment of the satellite's resources and using a single channel per carrier (SCPC) access scheme. Methods are presented herein for facilitating the dimensioning of at least a power characteristic of said space segment using a Demand Assignment Multiple Access approach and for enforcing the dimensioned power characteristic in real-time, or substantially in real-time. Also presented are methods for allocating power to SCPC carriers, wherein a maximum power level for a carrier may be determined using a DAMA technique.
    Type: Application
    Filed: August 30, 2013
    Publication date: March 6, 2014
    Applicant: Gilat Satellite Networks Ltd.
    Inventors: Doron Elinav, Mati E. Rubin, Snir Brener
  • Patent number: 8667344
    Abstract: A method and apparatus encode a source data stream via convolutional encoding or selected encoding scheme. Plural encoded data streams are interleaved and transmitted on a transmission channel. Data groups generated via convolutional or selected encoding are interleaved via time-interleaving functions to disperse selected bits within data groups, bits in between data groups, and bits in selected sets of data groups to facilitate reconstruction of the source data stream from at least a portion of the interleaved data stream received on at least one transmission channel. Subsets of bits of data groups are selected to allow reconstruction of the source data stream from more than one of plural transmission channels using a minimum number of subsets. Multiple combinations of subsets can be received on both transmission channels to reconstruct the source data stream following blockage of one channel.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: March 4, 2014
    Assignee: Sirius XM Radio Inc.
    Inventor: Paul D. Marko
  • Patent number: 8660060
    Abstract: A system and method for communications using spatial multiplexing with incomplete channel information are provided. A method for wireless communications includes receiving, at a controller, a reference signal transmitted by a communications device, computing channel statistics based on the received reference signal, computing a first beamforming vector and a second beamforming vector, and transmitting information to the communications device. The reference signal being transmitted using a subset of antennas used for data reception at the communications device, and the controller and the communications device utilize cross-polarized antennas. The computing being based on the channel statistics, the transmitting uses the first beamforming vector and the second beamforming vector, the first beamforming vector precodes information for a first antenna at the communications device, and the second beamforming vector precodes information for a second antenna at the communications device.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: February 25, 2014
    Assignee: FutureWei Technologies, Inc.
    Inventor: Shahab Sanayei
  • Patent number: 8660481
    Abstract: Techniques for providing broadcast services on spot beam satellite are provided. These techniques enable the mission of a spot beam satellite system to be changed from providing spot beam transmission to broadcast transmissions, and vice versa, without requiring that the satellite be reconfigured. Broadcast data may be encoded and transmitted concurrently on a plurality of spot beams. According to some embodiments, the broadcast data may be encoded using a space-time code and/or forward error corrected (FEC) encoded to enable a receiver to correct errors in the signal received from the spot beam satellite.
    Type: Grant
    Filed: March 20, 2008
    Date of Patent: February 25, 2014
    Assignee: ViaSat, Inc.
    Inventor: Mark J. Miller
  • Patent number: 8660596
    Abstract: An electronic apparatus includes a processing unit. The processing unit, when detecting a frequency offset between an radio frequency (RF) module and a corresponding base station (BS), controls an oscillator to change a frequency of a first reference clock signal outputted therefrom by a first frequency variation, and controls a compensation unit to change a frequency of a second reference clock signal outputted therefrom by a second frequency variation. Wherein the compensation unit receives and adjusts the first reference clock signal from the oscillator to output the second reference clock signal, and the frequency offset substantially equals the first frequency variation plus the second frequency variation.
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: February 25, 2014
    Assignee: MediaTek Inc.
    Inventors: Ming-Jie Yang, Chu-Wei Lo
  • Patent number: 8660168
    Abstract: Aspects of a method and system for communicating via a spatial multilink repeater are provided. In this regard, a received signal may be frequency shifted to generate a plurality of repeated signals, wherein each repeated signal may be shifted by a different frequency with respect to the received signal. Each repeated signal may comprise one or more signal components and a phase and/or amplitude of each of the components may be controlled to control a directivity of the repeated signals. Each of the repeated signals may be generated by quadrature down-converting said received signal by mixing the received signal with a first LO signal pair, up-converting the down-converted signal by mixing it with a second LO signal pair, and adding or subtracting an in-phase portion and a quadrature-phase portion of the up-converted signal.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: February 25, 2014
    Assignee: Broadcom Corporation
    Inventors: Ahmadreza Rofougaran, Maryam Rofougaran
  • Patent number: 8654814
    Abstract: A method for identifying the presence of an electronic transmission comprising detecting, by a detecting device, the presence of a burst of electromagnetic energy that results from the presence of an original carrier signal and transmitting, by a transmitting device, a spread spectrum meta-carrier signal within a portion of a bandwidth of the original carrier signal, wherein the meta-carrier signal contains information about the original carrier signal and is transmitted such that the meta-carrier signal occupies at least a portion of a bandwidth of the original carrier signal during the presence of the burst of electromagnetic energy.
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: February 18, 2014
    Assignee: Comtech EF Data Corp.
    Inventors: Michael Beeler, Cris M. Mamaril, Jeffery Harig
  • Patent number: 8649319
    Abstract: Apparatus and method for allocating communication resources in a data radio communication system, such as an MAIO (Mobile Allocation Index Offset) communication system, e.g., a communication system that provides for Enhanced Data for GSM Evolution (EDGE) data services. A multi-carrier radio resource control logic element includes an analyzer that analyzes communication resource requirements to carry out a communication service. A resource allocator allocates communication resources to be used by which to communicate the data. The communication resources are allocated across a plurality of radio carriers such that resources are allocated, during a particular time period, upon a single radio carrier of the plurality of radio carriers.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: February 11, 2014
    Assignee: BlackBerry Limited
    Inventors: Mark Pecen, Mihal Lazaridis, Sean Simmons
  • Patent number: 8644203
    Abstract: A power reduction method for a first communication device that can communicate with a second communication device in a synchronized fashion. The first communication device has an electronic module and the method includes generating a communication device shut down signal by the electronic module in order to shut down the communication device apart from the electronic module at a first moment in time, generating a communication device wake-up signal by the electronic module in order to switch on and start booting of the communication device at a second moment in time after the first moment in time, and generating a communication device synchronization signal by the electronic module in order to allow the communication device to restart communicating with the second communication device in the synchronized fashion at a third moment in time after the second moment in time.
    Type: Grant
    Filed: April 26, 2010
    Date of Patent: February 4, 2014
    Assignee: Dialog Semiconductor B.V.
    Inventor: Steven Frederik Leussink
  • Patent number: 8638821
    Abstract: A communication network includes a plurality of communication nodes, each node arranged for communicating frames of data with the other nodes during a dynamic segment having dynamic communication slots with respective communication slot numbers. Each of the plurality of communication nodes includes a time base having consecutive timeslots, associated with the dynamic communication slots; a communication slot number controller, for adjusting a communication slot number, a minislot counter for counting minislots while the adjusting of the communication slot counter is suspended and a control unit for controlling the communication slot number controller to either continue adjusting of the slot number if the determined duration of the reception is above a certain threshold or to continue adjusting of the slot number using the value obtained with the minislot counter if the determined duration of the reception is below a certain threshold.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: January 28, 2014
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Christopher Temple, Mathias Rausch
  • Patent number: 8638700
    Abstract: Using a single logical base transceiver to serve multiple physical locations is disclosed. A call traffic associated with a call associated at a mobile network with an assigned timeslot of a logical base transceiver is received. A timeslot with which the call traffic is associated is remapped from the assigned timeslot to a serving timeslot being used at a serving physical base transceiver to facilitate the call, in the event the call traffic comprises inbound call traffic being sent into the mobile network from the serving physical base transceiver, or from the serving timeslot to the assigned timeslot in the event the call traffic comprises outbound call traffic being sent from the mobile network to the serving physical base transceiver.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: January 28, 2014
    Assignee: Broadcom Corporation
    Inventors: Yan Zhang, Jayesh Sukumaran, Elliott Hoole, Greg Veintimilla
  • Patent number: 8619650
    Abstract: Devices, systems and methods to schedule a service period at a wireless network. A wireless network controller of the wireless network may set a start time of a service period. The start time is no less than a predefined time after transmitting by the wireless network controller an information element containing the service period scheduling information.
    Type: Grant
    Filed: January 11, 2011
    Date of Patent: December 31, 2013
    Assignee: Intel Corporation
    Inventors: Solomon B. Trainin, Carlos Cordeiro
  • Patent number: 8614973
    Abstract: Methods and systems are provided for providing wireless service using multiple protocols on a single radio-frequency (RF) carrier. According to an embodiment, a low-cost Internet base station (LCIB) provides wireless service on an RF carrier using a first wireless-communication protocol and provides wireless service on the RF carrier using a second wireless-communication protocol, where providing wireless service on the RF carrier using the first wireless-communication protocol and providing wireless service on the RF carrier using the second wireless-communication protocol occur at different times. The LCIB may alternate between providing wireless service using the first wireless-communication protocol and providing wireless service using the second wireless-communication protocol.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: December 24, 2013
    Assignee: Sprint Spectrum L.P.
    Inventors: Ryan S. Talley, Bryan T. Barbee, Timothy W. Sill, Christopher M. Yenney
  • Patent number: 8611274
    Abstract: A communication system comprises a communication node for scheduling uplink and downlink transmissions in a communication system. The communication node determines based on a first set of parameters of a data associated with the communication node and a second set of parameters of a data associated with one other communication node, whether to load the data associated with the communication node from an end of a data queue buffer. The communication node upon determining to load the data associated with the communication node from the end of the data queue buffer, loads the data associated with the communication node from the end of the data queue buffer. The communication node further determines a start time for transmission of the data associated with the communication node and schedules transmission of the data associated with the communication node at the start time.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: December 17, 2013
    Assignee: Cambium Networks, Ltd
    Inventors: Paul Odlyzko, Michael S. Johnson, Charles D. Macenski
  • Patent number: 8611273
    Abstract: A wireless communication method and apparatus are disclosed for assigning different phases, (i.e., time periods), to perform data transmissions over designated frequency bands in a cooperative relaying system. In phase 1, a relay station (RS) listens to a wireless transmit/receive unit (WTRU) and successfully receives b information bits. In phase 2, the RS and WTRU cooperatively transmit these b information bits to the destination. These transmissions may be performed in a unicast scheme, wherein a WTRU sends information to a selected RS in phase 1, and the RS forwards the information to a base station (BS) in phase 2. The transmission may also be performed in a multicast scheme, wherein the WTRU sends information to the RS and the BS in phase 1, and the RS transmits a subset the information to the BS in phase 2.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: December 17, 2013
    Assignee: InterDigital Patent Holdings, Inc.
    Inventors: Zinan Lin, Eldad M. Zeira, Alexander Reznik, Prabhakar R. Chitrapu, Sana Sfar
  • Patent number: 8599747
    Abstract: A method of conducting a lawful intercept of real time media packet traffic involves redirecting real time media packet streams between a caller and callee through a media server; replicating the media packet streams within the media server; modifying packet headers of the replicated packet streams; and directing the modified packet streams to at least one monitoring port.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: December 3, 2013
    Assignee: Radisys Canada Inc.
    Inventors: Adnan Saleem, Neil Gunn, Yong Xin, Jagtar Gill, Alvin Chubbs
  • Patent number: 8601295
    Abstract: A network includes nodes that transmit information to each other. Some nodes operate intermittently; other nodes operate continuously. Information is transmitted to an intermittently operating node by a handshaking protocol in which the intermittently operating node indicates that it is ready to receive. Information is transmitted to a continuously operating node without such handshaking, thereby saving time and power. Each transmitting node has a memory storing information indicating which other nodes require handshaking.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: December 3, 2013
    Assignee: Oki Electric Industry Co., Ltd.
    Inventor: Yasutaka Kawamoto
  • Patent number: 8594559
    Abstract: A satellite digital radio receiver for receiving first and second radio services. The first and second radio services are broadcast in first and second respective different radio frequency bands. At least one radio programme is broadcast substantially simultaneously on both radio services and one of the frequency bands can produce interference in the other frequency band.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: November 26, 2013
    Assignee: NXP, B.V.
    Inventor: Andreas Hans Walter Wichern
  • Patent number: 8588279
    Abstract: Aspects of a method and system for inter-PCB communication utilizing a spatial multi-link repeater are provided. In this regard, a signal may be transmitted between printed circuit boards via one or more repeaters, wherein the repeaters may frequency shift received signals to generate repeated signals. Each of the repeated signals may be generated by quadrature down-converting said received signal by mixing the received signal with a first LO signal pair, up-converting the down-converted signal by mixing it with a second LO signal pair, and adding or subtracting an in-phase portion and a quadrature-phase portion of the up-converted signal. Each repeated signal may comprise one or more signal components and a phase and/or amplitude of each of the components may be controlled to control a directivity of the repeated signals. The repeater may reside on one of the plurality of printed circuit boards.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: November 19, 2013
    Assignee: Broadcom Corporation
    Inventors: Ahmadreza Rofougaran, Maryam Rofougaran
  • Patent number: 8582497
    Abstract: Certain embodiments of the invention may be found in a method and system for minimizing power consumption in a communication system. Exemplary aspects of the invention may comprise configuring a supply voltage of an amplifier to enable communication of data using a first communication protocol during a first timeslot in a TDM frame, reconfiguring the supply voltage of the amplifier to enable communication of data using a different communication protocol, and adjusting the supply voltage of the amplifier in proportion to the envelope of a baseband signal conforming to one of the communication protocols. The first and second communication protocols may conform to various communication protocols, such as WCDMA, HSDPA, HSUDPA, GSM, GPRS, EDGE, WiMAX, OFDM, UWB, ZigBee, and Bluetooth. The baseband signal may be delayed by a number of samples before being input into the amplifier.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: November 12, 2013
    Assignee: Broadcom Corporation
    Inventor: Ahmadreza Rofougaran
  • Patent number: 8583135
    Abstract: Systems and methods for reducing macro-femto bas station interference are disclosed. In one aspect, macro-femto interference is reduced by configuring t macro bases station to avoid using resources allocat to the femto base station.
    Type: Grant
    Filed: July 25, 2008
    Date of Patent: November 12, 2013
    Assignee: Telefonaktiebolaget LM Ericsson (publ.)
    Inventors: Kimmo Hiltunen, Tomas Nylander, Jari Vikberg
  • Patent number: 8582548
    Abstract: Techniques for transmitting data using single-carrier frequency division multiple access (SC-FDMA) multiplexing schemes are described. In one aspect, data is sent on sets of adjacent subbands that are offset from one another to achieve frequency diversity. A terminal may be assigned a set of N adjacent subbands that is offset by less than N (e.g., N/2) subbands from another set of N adjacent subbands assigned to another terminal and would then observe interference on only subbands that overlap. In another aspect, a multi-carrier transmission symbol is generated with multi-carrier SC-FDMA. Multiple waveforms carrying modulation symbols in the time domain on multiple sets of subbands are generated. The multiple waveforms are pre-processed (e.g., cyclically delayed by different amounts) to obtain pre-processed waveforms, which are combined (e.g., added) to obtain a composite waveform. A cyclic prefix is appended to the composite waveform to generate the multi-carrier transmission symbol.
    Type: Grant
    Filed: January 4, 2006
    Date of Patent: November 12, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Dhananjay Ashok Gore, Ravi Palanki
  • Patent number: 8577283
    Abstract: A repeater that facilitates communication in a wireless environment comprises a scheduling component that analyzes a schedule relating to when communications are active in the forward link direction and when communications are active in the reverse link direction, the communications are subject to time division duplexing. An amplifier that amplifies received communications as a function of the schedule. The repeater can further comprise a configuration component that configures the amplifier to amplify the received communications in one or more of a forward link direction and a reverse link direction.
    Type: Grant
    Filed: July 15, 2005
    Date of Patent: November 5, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Richard Finch Dean, Kenneth Robert Baker
  • Patent number: 8576882
    Abstract: A method and system for wireless communication in which a plurality of media access control (“MAC”) packet data units (“PDUs”) corresponding to a plurality of wireless communication connections are received. The plurality of MAC PDUs is grouped into a relay packet and the relay packet is transmitted. Such grouping and transmission of the relay packet is performed by one or more relay nodes. The traffic control for the transmission can also be based on centralized or decentralized routing control and/or centralized or decentralized QoS control.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: November 5, 2013
    Assignee: BlackBerry Limited
    Inventors: Hang Zhang, Peiying Zhu, Mo-Han Fong, Wen Tong, Nimal Senarath, Derek Yu, David Steer, Curtis S. Dodd
  • Publication number: 20130286934
    Abstract: An improved satellite communication system is provided comprising at least one satellite wherein each satellite provides multiple beams, a plurality of UTs, and at least one gateway connected to a PSTN and communicating with said at least one UT or with a constellation, wherein each of the UTs within a given frequency band is distinguished from another of the UTs employing a combination of TDM and NOPN codes and time slots.
    Type: Application
    Filed: June 28, 2013
    Publication date: October 31, 2013
    Inventors: Paul A. Monte, Vijaya Gallagher
  • Patent number: 8571041
    Abstract: A method is provided for managing transmissions among nodes communicating over a shared communication medium. The method includes: transmitting a frame from a sender node to a plurality of receiver nodes, the frame including at least a portion of a data packet and control information associated with accessing the communication medium; transmitting over the communication medium information indicating an end of a time window allocated for transmission of acknowledgement signals to the sender node from at least some of the plurality of receiver nodes; assigning each of a plurality of time slots in the time window to different subsets of the plurality of receiver nodes; and for a given receiver node, transmitting an acknowledgement signal from the given receiver node to the sender node during a time slot assigned to the given receiver node, the acknowledgement signal responsive to at least the frame.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: October 29, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Srinivas Katar, Sidney Brower Schrum, Jr., Lawrence W. Yonge, III, Manjunath Krishnam
  • Patent number: 8565147
    Abstract: A frequency block allocation apparatus based on a single carrier frequency division multiple access method includes an allocation index computation target selector that selects frequency block groups, each consisting of one or more continuous non-allocated frequency blocks from a set of non-allocated frequency blocks; an allocation index computation unit that computes an allocation index for each target pair of each frequency block group and a terminal; and a frequency block allocation unit that determines one of the target pairs to be a frequency block allocation target, in accordance with priority based on the computed allocation indexes.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: October 22, 2013
    Assignee: KDDI Corporation
    Inventors: Toshihiko Komine, Takeo Ohseki, Satoshi Konishi
  • Patent number: 8565148
    Abstract: Systems and methods for mobile communications are disclosed herein. An example method for a mobile station includes receiving first data from a carrier on a first frequency using a first receiver of the mobile station in a first timeslot, tuning a second frequency of the carrier using the second receiver while the first receiver is receiving the first data during the first timeslot, and receiving second data from the carrier on the second frequency using the second receiver during a second timeslot that immediately follows the first timeslot, wherein the mobile station receives data on all timeslots without each of two time division multiple access frames.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: October 22, 2013
    Assignee: Blackberry Limited
    Inventors: David Hole, Satish Venkob, Rene Faurie, William Owen Parry
  • Patent number: 8565758
    Abstract: An integrated wireless network and associated method are provided for facilitating wireless communication onboard an aircraft. The integrated wireless network includes a wireless distribution system including a wired interface and a plurality of wireless radios. The wireless distribution system may also include a combiner and one or more antennas, such as leaky feeder antenna(s), extending through the cabin compartment of the aircraft. The combiner may provide the combined wireless signals to the antenna for transmission. And, the combiner may deconstruct wireless signals received by the antenna and provide the deconstructed wireless signals to a respective wireless radio. The integrated wireless network of this embodiment also includes one or more wireless data concentrators having a plurality of wireless radios in communication with the antenna.
    Type: Grant
    Filed: February 8, 2010
    Date of Patent: October 22, 2013
    Assignee: The Boeing Company
    Inventors: Ethan Owyang, David T. Kirkland, Frank L. Whetten, Scott Edward Marston, Bradley J. Mitchell, Kenneth P. Kirchoff, Sudhakar S. Shetty
  • Patent number: 8552857
    Abstract: An apparatus is provided. The apparatus includes a plurality of transceivers arranged in a mesh network that each synchronously communicate with at least one other of the plurality of transceivers in an assigned slot of a TDMA channel, at least a first of the plurality of transceivers asynchronously transmitting a priority message on a priority channel that is different than the TDMA channel and at least a second of the plurality of transceivers that detects an information content of the asynchronous priority message on the priority channel and retransmits the detected information content synchronously on the TDMA channel to a third transceiver of the plurality of transceivers.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: October 8, 2013
    Assignee: Honeywell International Inc.
    Inventors: Andrew G. Berezowski, Tim Rauworth, Vinayak Sadashiv Kore
  • Patent number: 8542715
    Abstract: A ship based cellular and satellite transceiver receives, demodulates and processes data, voice and video signals from a satellite transmitter and provides the processed signals in cascade to a OFDM and to a CDMA modulator and transmitter for transmission to a ship based mobile unit. The OFDM signal is transmitted in a Wi-Fi network and the CDMA signal is transmitted in frequency bands used by cellular phones and cellular connected devices. The ship based transceiver receives from a mobile unit, e.g. from a cellular phone or a computer an OFDM or a CDMA signal generated and transmitted by the mobile unit and receives, demodulates and processes the cellular phone transmitted signal and provides these processed signals for cascade processing, modulation and transmission to a satellite.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: September 24, 2013
    Inventor: Kamilo Feher
  • Patent number: 8538425
    Abstract: An apparatus and method comprising determining if the timing of a registration system information (RSI) or a paging occasion occurs first; if the paging occasion occurs first, checking for a page and answering the page on the target cell after collecting system information (SI) if the page exists; or if the timing of the RSI occurs first: reading RSI and obtaining a registration area indicator of the target cell; determining if the registration area indicators of a source cell and of the target cell are the same; if not, determining whether checking the page in the source cell would overlap with receiving SI from the target cell; if overlap, or if same, collect SI and monitor a paging channel in the target cell; or if no overlap, checking for the page in the source cell, and if no page, collect SI and monitor the paging channel in the target cell.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: September 17, 2013
    Assignee: Qualcomm Incorporated
    Inventors: Amer Catovic, Francesco Pica, Mukesh K. Mittal, Mustafa Saglam
  • Patent number: 8532140
    Abstract: A base station performs bandwidth assignment for each terminal station or each wireless link even when the base station does not receive a bandwidth request in random access from the terminal station in the demand assignment period present in a specific period in which a transmission frequency of data to transmit is high, the specific period being specified for each terminal station or each wireless link between the terminal station and the base station, and the terminal station transmits at least one of bandwidth request information and the data to transmit in a bandwidth assigned by the base station.
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: September 10, 2013
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Yoshitaka Shimizu, Fusao Nuno
  • Patent number: 8532066
    Abstract: Techniques for transmitting data in a manner to support multi-user scheduling, multiple-input multiple-output (MIMO) transmission, and interference cancellation are described. A base station assigns multiple time segments of a transmission time interval (TTI) to at least one terminal, maps data for each terminal to at least one time segment assigned to the terminal, and spreads the data in each time segment with at least one channelization code used in the TTI. A terminal receives an assignment of at least one time segment from among multiple time segments of the TTI, obtains input samples for the at least one time segment, and despreads the input samples with the at least one channelization code used in the TTI.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: September 10, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Ivan Jesus Fernandez-Corbaton, Josef J. Blanz, Wolfgang Granzow
  • Patent number: 8532205
    Abstract: A frame transmission method in a wireless communication system comprises setting a primary frame including a multiplicity of primary sub-frames, setting a secondary frame including a multiplicity of secondary sub-frames, and transmitting the secondary frame, wherein each of the primary sub-frames and each of the secondary sub-frames consists of multiple OFDM symbols, the OFDM symbols included in the primary sub-frame and the OFDM symbols included in the secondary sub-frame have different CP (Cyclic Prefix) lengths from one another, and the primary sub-frames and the secondary sub-frames are all equal in length. It is an advantage of the invention that frames consisting of OFDM symbols with different CP lengths can coexist together. Moreover, when each of the sub-frames within one frame consists of multiple OFDM symbols with different CP lengths, even the sub-frames can coexist together.
    Type: Grant
    Filed: March 19, 2009
    Date of Patent: September 10, 2013
    Assignee: LG Electronics Inc.
    Inventors: Sung Ho Moon, Minseok Noh, Yeong Hyeon Kwon, Jin Sam Kwak, Dong Cheol Kim, Seung Hee Han, Hyun Woo Lee
  • Patent number: 8526961
    Abstract: A method for mapping an operating parameter in a coverage area of a wireless network includes obtaining parameter measurements for an operating parameter associated with mobile stations operating in a select portion of a network coverage area for a wireless network, the network coverage area formed by base stations defining cellular coverage areas, the select portion formed by at least one base station, each at least one base station including multiple sector antennas, each sector antenna defining a sector coverage area within the cellular coverage area; and, for each obtained parameter measurement, estimating an instant geographic location of the mobile station in relation to the at least one base station serving the mobile station, each instant geographic location based on a round trip measurement and a signal strength measurement associated with the mobile station, each round trip measurement associated with the serving base station.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: September 3, 2013
    Assignee: Alcatel Lucent
    Inventors: Susan W. Sanders, Tian Bu