Plural Receivers Tuned To Common Frequency Patents (Class 455/526)
  • Patent number: 10237027
    Abstract: A wireless access node (e.g. a master eNB (MeNB)) is described for a wireless communication system that comprises a first wireless access network and a second wireless access network supporting a dual connectivity terminal device arranged to communicate with both the wireless access node (MeNB) on the first wireless access network and a second wireless access node (e.g. a secondary eNB (SeNB)) on the second wireless access network is provided. The wireless access node comprises a communication unit and a controller.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: March 19, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Himke Van Der Velde, Soenghun Kim, Gert-Jan Van Lieshout
  • Patent number: 9684722
    Abstract: According to one embodiment, an output unit performs filtering on input data for each filtering condition for performing data filtering and outputs a result of the filtering to an output destination. A receiving unit receives information indicating whether the output result of the filtering is appropriate or inappropriate from the output destination. A cumulative counting unit cumulatively counts the numbers of times determined to be appropriate and appropriate for each filtering condition based on the received information. A switching unit switches the filtering at the output unit between being valid and invalid for each filtering condition based on cumulative values of the numbers of times the output result of the filtering for each filtering condition has been determined to be appropriate and inappropriate and a switching condition that switches the filtering condition between being valid and invalid.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: June 20, 2017
    Assignee: FUJITSU LIMITED
    Inventor: Hiroshi Nakagawa
  • Patent number: 9532223
    Abstract: The present invention relates to a method for downloading a subscription from an operator to a UICC embedded in a terminal. The method includes transmitting from the terminal, to a platform, an identifier and a request for downloading the subscription; verifying in the platform that the terminal is authorized to download the subscription by verifying the rights of the terminal in accordance with its identifier; and downloading the subscription to the UICC if the rights are confirmed and, otherwise, refusing to download the subscription.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: December 27, 2016
    Assignee: GEMALTO SA
    Inventors: Pierre Girard, Philippe Proust
  • Patent number: 9276796
    Abstract: The invention relates to a method for joint processing of uplink data (g(n), s(n)) transmitted from at least one user equipment (UE1, UE2) to a plurality of coordinated reception points (BSA, BSB) of a wireless communication system (1), the method comprising: estimating and preferably compensating for individual propagation delays of the uplink data (g(n), s(n)) transmitted from one of the user equipments (UE1, UE2) to the coordinated reception points (BSA, BSB), and compensating a timing difference between a propagation delay of a coordinated reception point (BSA, BSB) which serves the user equipment (UE1, UE2) and at least one propagation delay of at least one coordinated reception point (BSB, BSA) which does not serve the user equipment (UE1, UE2) for performing the joint processing of the uplink data (g(n), s(n)), wherein the step of compensating the timing difference comprises modifying a channel matrix (H) associated with uplink channels from the at least one user equipment (UE1, UE2) to the coordinated
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: March 1, 2016
    Assignee: Alcatel Lucent
    Inventors: Thorsten Wild, Uwe Doetsch, Osman Aydin, Stephen Kaminski, Christian Gerlach
  • Patent number: 9020559
    Abstract: A method for direct sampling of a plurality of radio bands, including a step of receiving a first radio band via a first interface and at least one additional radio band via at least one additional interface, the first radio band and the at least one additional radio band each being associated with different frequency ranges, and the first radio band or the at least one additional radio band being a DAB band. Furthermore, a selection signal is received via an interface, the selection signal indicating whether further processing of the first radio band and/or the at least one additional radio band takes place. Depending on the selection signal, the first radio band is sampled at a common sampling frequency and/or the at least one additional radio band is sampled at the common sampling frequency.
    Type: Grant
    Filed: August 3, 2010
    Date of Patent: April 28, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Carsten Lehr, Detlev Nyenhuis, Marcus Risse
  • Patent number: 9002305
    Abstract: A plurality of training signal sets are transmitted. Each training signal set includes information sufficient to determine a channel estimate corresponding to a communication channel from a first station to a second station. A refined channel estimate is determined based on reception of the plurality of training signal sets.
    Type: Grant
    Filed: April 14, 2014
    Date of Patent: April 7, 2015
    Assignee: Marvell Interational Ltd.
    Inventors: Rohit U. Nabar, Hongyuan Zhang, Arul Durai Murugan Palanivelu
  • Patent number: 8965283
    Abstract: A method for setting up a direct link between a first client station and a second client station is described. The method is performed by the first client station. The first client station communicates with a group owner (GO) via a first peer to peer (P2P) wireless link. Whether to set up a tunneled direct link setup (TDLS) direct link between the first client station and the second client station is determined. The TDLS direct link between the first client station and the second client station is set up. The first client station then communicates directly with the second client station via the TDLS direct link.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: February 24, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Maarten Menzo Wentink, Vincent Knowles Jones, IV
  • Patent number: 8868118
    Abstract: The present patent application comprises a method and apparatus for multiplexing reverse link feedback channels on a single reverse link frequency supporting multiple forward link frequencies for forward link channels, comprising assigning the reverse link frequency to a mobile station, assigning one or more of the forward link frequencies to the reverse link frequency, and code division multiplexing a plurality of the reverse link feedback channels on the reverse link frequency.
    Type: Grant
    Filed: April 3, 2006
    Date of Patent: October 21, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Ramin Rezaiifar, Parag Agashe, Peter J. Black
  • Patent number: 8855703
    Abstract: A method of driving a mobile communication terminal in a cellular network, includes monitoring with a control unit of the mobile communications terminal, reception power levels between the mobile communication terminal and cellular network base stations at a predefined monitoring rate for each base station. Timing information values for a number of base stations are intermittently monitored by the control unit. Drift of the timing information values for at least two of the base stations is monitored and significant motion of the mobile communication terminal is deemed detected if at least one of the timing information values indicates a drift equal to or exceeding a given timing drift threshold. The predefined reception power level monitoring rate is reduced to a reduced reception power level monitoring rate for at least a number of the base stations as long as the motion of the mobile communication terminal is not significant.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: October 7, 2014
    Assignee: Ericsson Modems SA
    Inventors: Arnaud Rosay, Samuel Lamazure
  • Patent number: 8842716
    Abstract: In an RF communication system, aspects for processing multipath clusters may comprise tracking a plurality of received clusters of signals and estimating a phase and amplitude of at least a portion of each of the plurality of received clusters of signals. Each of the plurality of received clusters of signals may be specified in time and an aggregate of received signal paths in a single cluster for a single base station may be processed. At least one cluster path processor may be assigned to process the plurality of received clusters of signals from each transmitting antenna at a single base station. At least one cluster path processor may be assigned to each of a plurality of base stations that are utilized for soft handoff.
    Type: Grant
    Filed: March 21, 2013
    Date of Patent: September 23, 2014
    Assignee: Broadcom Corporation
    Inventors: Mark Kent, Uri M. Landau
  • Patent number: 8768370
    Abstract: Obtaining access to a physical uplink shared channel that is shared by a plurality of mobile stations in a wireless network is disclosed. A mobile station may receive dedicated configuration information for an uplink control channel. The mobile station may send to the wireless network over the uplink control channel a request for access to the physical uplink shared channel. The mobile station receives a physical uplink shared channel allocation in response to the request.
    Type: Grant
    Filed: January 18, 2008
    Date of Patent: July 1, 2014
    Assignee: Intellectual Ventures Holding 81 LLC
    Inventor: Timothy J. Speight
  • Patent number: 8768393
    Abstract: A method is disclosed to eliminate inter-cluster interference of user equipment located at the edge of a cluster of cells. The method operates by employing fractional frequency reuse (FFR) principles on clusters or combinations of cells in a wireless neighborhood, in which base stations in the cells coordinate their operations in a scheme known as coordinated multi-point transmission (CoMP). By using the FFR principles to single out edge users of the CoMP cluster, the method mitigates interference and increases throughput for the edge users.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: July 1, 2014
    Assignee: Intel Corporation
    Inventors: Hooman Shirani-Mehr, Yang-Seok Choi, Hujun Yin
  • Patent number: 8750785
    Abstract: A receiving unit 28 includes a tuner circuit board 104 that receives a satellite signal. The tuner circuit board 104 demodulates and decodes the satellite signal to form a second signal. The second signal is provided to a processor board 112 that is separated from the tuner and formats the second signal to form an audio signal and a video signal. An integrated bus 100 couples the tuner circuit board 104 and the processor circuit board 112. The integrated bus 100 comprises the second signal, the audio signal and the video signal.
    Type: Grant
    Filed: August 16, 2006
    Date of Patent: June 10, 2014
    Assignee: The DIRECTV Group, Inc.
    Inventors: Linh Nguyen, Jorge Guzman
  • Patent number: 8737943
    Abstract: Devices and methods for receiving, processing and formatting digital video. The devices may include a single semiconductor chip on which is imprinted a radio frequency signal tuner module and a display interface module. The display interface module may be configured to receive programming information from the radio frequency signal tuner module. The display interface module may be configured to communicate the programming information to a digital video recorder. The radio frequency tuner module may include a first radio frequency input channel and a second radio frequency input channel. The radio frequency signal tuner module may include a system oscillator and a phase-locked loop (“PLL”) circuit configured to generate a clock signal. The phase-locked loop circuit may be configured to transmit the signal to the display interface module and to any other suitable modules on the chip.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: May 27, 2014
    Assignee: Broadcom Corporation
    Inventors: Eric Chan, Sack Lee Chan, Hiroshi Suzuki, Prijesh Patel
  • Patent number: 8699978
    Abstract: A plurality of training signal sets are transmitted. Each training signal set includes information sufficient to determine a channel estimate corresponding to a communication channel from a first station to a second station. A refined channel estimate is determined based on reception of the plurality of training signal sets.
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: April 15, 2014
    Assignee: Marvell International Ltd.
    Inventors: Rohit U. Nabar, Hongyuan Zhang, Arul Durai Murugan Palanivelu
  • Patent number: 8693966
    Abstract: A method for filtering out a useful signal of a mobile radio terminal from a plurality of superimposed signals having a signal quality received by base stations in a cellular mobile radio network. The superimposed signal of the mobile radio terminal is detected by base stations that are reached and the signal quality of the received and superimposed signal of every base station reached is determined. The signal quality of a selected base station is then transmitted to a decision element and a selection of a selected base station is made by the decision element to decode the useful signal of the mobile radio terminal. The invention also relates to a device for filtering out a useful signal of a mobile radio terminal from a plurality of superimposed signals received by base stations in a cellular mobile radio network.
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: April 8, 2014
    Assignee: Vodafone Holding GmbH
    Inventors: Shahid Khattak, Patrick Marsch, Peter Rost
  • Patent number: 8630674
    Abstract: A method of driving a mobile communication terminal in a cellular network, includes monitoring with a control unit of the mobile communications terminal, reception power levels between the mobile communication terminal and cellular network base stations at a predefined monitoring rate for each base station. Timing information values for a number of base stations are intermittently monitored by the control unit. Drift of the timing information values for at least two of the base stations is monitored and significant motion of the mobile communication terminal is deemed detected if at least one of the timing information values indicates a drift equal to or exceeding a given timing drift threshold. The predefined reception power level monitoring rate is reduced to a reduced reception power level monitoring rate for at least a number of the base stations as long as the motion of the mobile communication terminal is not significant.
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: January 14, 2014
    Assignee: ST-Ericsson SA
    Inventors: Arnaud Rosay, Samuel Lamazure
  • Patent number: 8547951
    Abstract: A channel structure has at least two channel sets. Each channel set contains multiple channels and is associated with a specific mapping of the channels to the system resources available for data transmission. Each channel set may be defined based on a channel tree having a hierarchical structure. To achieve intra-cell interference diversity, the channel-to-resource mapping for each channel set is pseudo-random with respect to the mapping for each remaining channel set. In each scheduling interval, terminals are scheduled for transmission on the forward and/or reverse link. The scheduled terminals are assigned channels from the channel sets. Multiple terminals may use the same system resources and their overlapping transmissions may be separated in the spatial domain. For example, beamforming may be performed to send multiple overlapping transmissions on the forward link, and receiver spatial processing may be performed to separate out multiple overlapping transmissions received on the reverse link.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: October 1, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Tingfang Ji, Ayman Naguib, Arak Sutivong, Dhananjay Ashok Gore, Alexei Gorokhov
  • Patent number: 8521211
    Abstract: Upon receipt of a request for retransmission issued from a first terminal, the base station generates a synthesized data by combining retransmission data destined for the first terminal and data destined for a second terminal and transmits the synthesized data, using a single communication resource.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: August 27, 2013
    Assignee: Fujitsu Limited
    Inventor: Takaharu Kobayashi
  • Patent number: 8498242
    Abstract: Techniques for transmitting beacon signals to assist user equipments (UEs) perform cell search and techniques for detecting for beacon signals are described. In an aspect, cells may be assigned beacon patterns defined based on orthogonal grouping of subcarriers. U subcarriers usable for beacon may be arranged into G orthogonal groups, with each group including S subcarriers. P=SG different beacon patterns may be defined based on the G groups of S subcarriers. In another aspect, the cells may transmit their beacon signals at configurable transmit power levels, which may be determined based on target beacon detection performance. In yet another aspect, a UE may perform overlapping DFTs in order to capture more received power when symbol timing at the UE is not aligned with symbol timing of cells being detected. In yet another aspect, the UE may perform beacon detection with maximal likelihood decoding.
    Type: Grant
    Filed: November 6, 2007
    Date of Patent: July 30, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Tao Luo, Durga Prasad Malladi, Hao Xu
  • Patent number: 8451821
    Abstract: A method for a user equipment to perform a random access to a network in a mobile communication system includes transmitting a random access preamble to the network; receiving a medium access control packet data unit (MAC PDU) via a downlink shared channel, wherein the MAC PDU comprises one or more sub headers in a first part of the MAC PDU and one or more random access responses in a second part of the MAC PDU subsequent to the first part, and wherein the random access responses include first uplink resource allocation information; transmitting a first uplink data based on the first uplink resource allocation information in one of the random access responses; and transmitting a second uplink data based on second uplink resource allocation information when the second uplink resource allocation information is received via a downlink control channel.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: May 28, 2013
    Assignee: LG Electronics Inc.
    Inventors: Young Dae Lee, Sung Duck Chun, Myung Cheul Jung, Sung Jun Park
  • Patent number: 8446892
    Abstract: A channel structure has at least two channel sets. Each channel set contains multiple channels and is associated with a specific mapping of the channels to the system resources available for data transmission. Each channel set may be defined based on a channel tree having a hierarchical structure. To achieve intra-cell interference diversity, the channel-to-resource mapping for each channel set is pseudo-random with respect to the mapping for each remaining channel set. In each scheduling interval, terminals are scheduled for transmission on the forward and/or reverse link. The scheduled terminals are assigned channels from the channel sets. Multiple terminals may use the same system resources and their overlapping transmissions may be separated in the spatial domain. For example, beamforming may be performed to send multiple overlapping transmissions on the forward link, and receiver spatial processing may be performed to separate out multiple overlapping transmissions received on the reverse link.
    Type: Grant
    Filed: May 13, 2005
    Date of Patent: May 21, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Tingfang Ji, Ayman Naguib, Arak Sutivong, Dhananjay Ashok Gore, Alexei Gorokhov
  • Patent number: 8428530
    Abstract: A plurality of training signal sets are transmitted. Each training signal set includes information sufficient to determine a channel estimate corresponding to a communication channel from a first station to a second station. A refined channel estimate is determined based on reception of the plurality of training signal sets.
    Type: Grant
    Filed: January 9, 2012
    Date of Patent: April 23, 2013
    Assignee: Marvell International Ltd.
    Inventors: Rohit U. Nabar, Hongyuan Zhang, Arul Durai Murugan Palanivelu
  • Patent number: 8406190
    Abstract: A user equipment (UE) performing a random access in a mobile communication system includes a transmitter configured to transmit a random access preamble to a network; a receiver receiving a medium access control packet data unit (MAC PDU) including one or more random access responses and a MAC header consisting of one or more sub headers, each of the sub headers respectively corresponding to each of the random access responses; and a processor processing information on a specific random access response among the random access responses based on information on the MAC PDU, wherein all of the sub headers are in a first part of the MAC PDU and all of the random access responses are in a second part of the MAC PDU subsequent to the first part.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: March 26, 2013
    Assignee: LG Electronics Inc.
    Inventors: Young Dae Lee, Sung Duck Chun, Myung Cheul Jung, Sung Jun Park
  • Patent number: 8406213
    Abstract: Access control based on CSMA is favorably carried out with the RTS/CTS method used together. If the RTS/CTS procedure is used together, CTS information is transmitted in response to the reception of RTS information, and data is transmitted in response to the reception of CTS. The CTS transmitting station measures the quality of RTS receive signal, and thereby determines a transmission rate at which it can receive and notifies a station as the destination of CTS. The station as the destination of CTS transmits data in response to CTS information. As the transmission rate for this data, the transmission rate indicated in the RATE field in CTS is applied.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: March 26, 2013
    Assignee: Sony Corporation
    Inventors: Kazuyuki Sakoda, Hideki Iwami, Kenzo Nishikawa
  • Patent number: 8331342
    Abstract: A base station for use in a wireless network, wherein the base station transmits in a downlink to a plurality of subscriber stations using a plurality of antennas according to a multiple input, multiple-output (MIMO) protocol. During a first downlink subframe, the base station operates in single-user MIMO mode in which the base station transmits a first data subpacket to a first subscriber station using a first antenna and transmits a second data subpacket to the first subscriber station using a second antenna. During a second downlink subframe following the first downlink subframe, the base station operates in multi-user MIMO mode in which the base station transmits a third data subpacket to the first subscriber station using the first antenna and transmits a fourth data subpacket to a second subscriber station using the second antenna.
    Type: Grant
    Filed: April 20, 2007
    Date of Patent: December 11, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Farooq Khan, Cornelius Van Rensburg
  • Patent number: 8306568
    Abstract: Technology is provided for a plurality of people that are waiting for a service/meeting with information relating to the queue. A registration unit is arranged to place people waiting for a service/meeting in a queue. At least one radio transmitter is arranged to transmit information relating to the queue to unidentified radio receivers so that the people may receive the information via the unidentified radio receivers.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: November 6, 2012
    Assignee: Q-Matic AB
    Inventor: Michael Ray Snyder
  • Patent number: 8290533
    Abstract: A wireless communication network system including: a command station for allocating a frequency band, broadcasting a backup station and periodic measurement periods in which a terminal should measure a reception quality, and stopping the allocation of the frequency band to the terminal during the measurement period; one or a plurality of backup stations for synchronizing with the command station and transmitting a measurement signal by using the same frequency channel as that of the command station; and one or a plurality of terminals for measuring a reception quality for each backup station by using the measurement signal.
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: October 16, 2012
    Assignee: Fujitsu Limited
    Inventor: Yuji Kojima
  • Patent number: 8274961
    Abstract: Access control based on CSMA is favorably carried out with the RTS/CTS method used together. If the RTS/CTS procedure is used together, CTS information is transmitted in response to the reception of RTS information, and data is transmitted in response to the reception of CTS. The CTS transmitting station measures the quality of RTS receive signal, and thereby determines a transmission rate at which it can receive and notifies a station as the destination of CTS. The station as the destination of CTS transmits data in response to CTS information. As the transmission rate for this data, the transmission rate indicated in the RATE field in CTS is applied.
    Type: Grant
    Filed: August 12, 2004
    Date of Patent: September 25, 2012
    Assignee: Sony Corporation
    Inventors: Kazuyuki Sakoda, Hideki Iwami, Kenzo Nishikawa
  • Patent number: 8270920
    Abstract: Devices and methods for receiving, processing and formatting digital video. The devices may include a single semiconductor chip on which is imprinted a radio frequency signal tuner module and a display interface module. The display interface module may be configured to receive programming information from the radio frequency signal tuner module. The display interface module may be configured to communicate the programming information to a digital video recorder. The radio frequency tuner module may include a first radio frequency input channel and a second radio frequency input channel. The radio frequency signal tuner module may include a system oscillator and a phase-locked loop (“PLL”) circuit configured to generate a clock signal. The phase-locked loop circuit may be configured to transmit the signal to the display interface module and to any other suitable modules on the chip.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: September 18, 2012
    Assignee: Broadcom Corporation
    Inventors: Eric Chan, Sack Lee Chan, Hiroshi Suzuki, Prijesh Patel
  • Patent number: 8223713
    Abstract: A method for transmitting radio resources in a mobile communication system is disclosed. The method includes receiving a random access channel (RACH) preamble from a plurality of UEs and transmitting response information associated with the received preambles over a common channel wherein the plurality UEs can access the common channel and receive corresponding information. If a HARQ scheme is used when a UE transmits data to the eNode-B using uplink radio resources allocated over the RACH, the eNode-B does not pre-allocate uplink radio resources required for re-transmission and performs allocation of radio resources for a first transmission of HARQ. If the re-transmission is required, the eNode-B allocates the radio resources required for the re-transmission with the NACK signal. If re-transmission is not required, the present invention can reduce an amount of wasted radio resources.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: July 17, 2012
    Assignee: LG Electronics Inc.
    Inventors: Young Dae Lee, Sung Duck Chun, Myung Cheul Jung, Sung Jun Park
  • Patent number: 8194762
    Abstract: An apparatus and method to feedforward non-quantized precoding weights in an OFDM communication system includes a first step (300) of sending feedback information from a subscriber station (SS) to a base station (BS). A next step (302) includes deriving non-quantized weight information from the feedback information. A next step (304) includes transmitting symbols carrying the non-quantized weight information and non-precoded pilot symbols by the BS. A next step (305) includes receiving the information and symbols by the SS. A next step (306) includes estimating the non-quantized weights from the symbols carrying the non-quantized weight information and the non-precoded pilot symbols by the SS. A next step (308) includes decoding data from the BS by the SS using the estimated non-quantized weight information.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: June 5, 2012
    Assignee: Motorola Mobility, Inc.
    Inventors: Bishwarup Mondal, Amitabha Ghosh, Fan Wang
  • Patent number: 8179856
    Abstract: There is provided a communication device including a first communication unit and a second communication unit that use a band causing a conflict between them, the communication device changing a compressibility of communication data to be transmitted by the second communication unit based on a communication status of the first communication unit.
    Type: Grant
    Filed: September 23, 2009
    Date of Patent: May 15, 2012
    Assignee: Sony Computer Entertainment Inc.
    Inventors: Masashi Kamata, Tadakazu Nagai
  • Patent number: 8175052
    Abstract: A method for transmitting radio resources in a mobile communication system is disclosed. The method includes receiving a random access channel (RACH) preamble from a plurality of UEs and transmitting response information associated with the received preambles over a common channel wherein the plurality UEs can access the common channel and receive corresponding information. If a HARQ scheme is used when a UE transmits data to the eNode-B using uplink radio resources allocated over the RACH, the eNode-B does not pre-allocate uplink radio resources required for re-transmission and performs allocation of radio resources for a first transmission of HARQ. If the re-transmission is required, the eNode-B allocates the radio resources required for the re-transmission with the NACK signal. If re-transmission is not required, the present invention can reduce an amount of wasted radio resources.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: May 8, 2012
    Assignee: LG Electronics Inc.
    Inventors: Young Dae Lee, Sung Duck Chun, Myung Cheul Jung, Sung Jun Park
  • Patent number: 8134960
    Abstract: Method and apparatus for performing communication between a Base Station (BS) and a Mobile Station (MS) in a Broadband Wireless Access (BWA) communication system. A method includes determining, by the BS, a Pseudo Random Bit Sequence Identifier (PRBS_ID) for renumbering subchannels in a predetermined Partial Usage of SubChannels (PUSC) zone among a plurality of PUSC zones in a downlink (DL) frame, and transmitting, by the BS, the PRBS_ID to the MS within a Space Time Coding Zone Information Element (STC_ZONE_IE) of a DL MAP message included in the DL frame.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: March 13, 2012
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Jae-Hee Cho, Bong-Gee Song, Soon-Young Yoon, Jae-Hwan Chang, In-Seok Hwang, Eun-Sun Cho, Hoon Huh, Sung-Joon Park
  • Patent number: 8131314
    Abstract: A method of socially-based station navigation can include receiving station selection information from each of a plurality of mobile nodes within a mobile ad-hoc network, wherein station selection information comprises, for each mobile node, a station to which the mobile node is tuned. The method can include identifying each station from the received station selection information for each mobile node and determining a measure of popularity for each station according to a number of mobile nodes, from the plurality of mobile nodes, tuned to the station. A list specifying at least one of the stations and the measure of popularity of each station on the list can be output.
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: March 6, 2012
    Assignee: International Business Machines Corporation
    Inventors: Travis M. Grigsby, Frank L. Jania, Darren M. Shaw
  • Patent number: 8095097
    Abstract: A plurality of training signal sets are transmitted. Each training signal set includes information sufficient to determine a channel estimate corresponding to a communication channel from a first station to a second station. A refined channel estimate is determined based on reception of the plurality of training signal sets.
    Type: Grant
    Filed: August 5, 2008
    Date of Patent: January 10, 2012
    Assignee: Marvell International Ltd.
    Inventors: Rohit U. Nabar, Hongyuan Zhang, Arul Durai Murugan Palanivelu
  • Patent number: 8064502
    Abstract: A wireless communication apparatus compensates for phase and amplitude imbalances existing among transmit and receive branches, while also preventing likelihood information and SNR estimation error produced by such imbalance compensation. In an apparatus having a plurality of transmit and receive antennas and respective branches for each antenna, a calibration processor multiplies receive signals in each receive branch by antenna calibration coefficients, in order to correct phase and amplitude imbalances existing among the receive branches. A transmit beamforming matrix estimator then estimates a transmit beamforming matrix by using the multiplied receive signals.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: November 22, 2011
    Assignee: Sony Corporation
    Inventors: Ryou Sawai, Hiroaki Takano
  • Patent number: 8050314
    Abstract: A wireless communication apparatus includes a plurality of antenna branches for transmitting and receiving a wireless communication signal, a calibration coefficient calculator for calculating a calibration coefficient for each frequency band, the calibration coefficient correcting an imbalance in phase and amplitude existing between the antenna branches, a coefficient storage memory for storing the calibration coefficient of each frequency band, a calibration coefficient reader for reading the calibration coefficient of a frequency band of one of a transmission signal and a reception signal as a target to be calibrated, a calibration coefficient interpolator for interpolating a calibration coefficient of the frequency band if the coefficient storage memory stores no corresponding calibration coefficient of the frequency band, and a calibration coefficient multiplier for multiplying one of the transmission signal and the reception signal by one of the read calibration coefficient and the interpolated calibrat
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: November 1, 2011
    Assignee: Sony Corporation
    Inventors: Hiroaki Takano, Tomoya Yamaura
  • Patent number: 8050221
    Abstract: A method and apparatus for dispersing user equipments (UEs) to non-preferred frequencies in a multimedia broadcast/multicast service (MEMS) system is provided. Information regarding a time required until a next session of the MBMS service is started is received. A determination is made as to whether to set a layer dispersion indicator (LDI) in a session stop message, according to the time required until the next session is started. The determined session stop message is sent to the UEs.
    Type: Grant
    Filed: February 3, 2006
    Date of Patent: November 1, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyeong-In Jeong, Kook-Heui Lee
  • Patent number: 8036299
    Abstract: Reversibility in the directivity in the event of transmission/reception through a multi-antenna system is well suitably compensated for by executing self-calibration. A branch is set to a reference branch, and a forward loopback transfer function and a backward loopback transfer function are acquired, whereby per-branch calibration factors are calculated. Subsequently, an other branch is set to a reference branch, and calibration factors are calculated in a similar manner. Then, the calibration factor for the reference branch is corrected in accordance with the secondly obtained calibration factor so that a calibration condition is satisfied.
    Type: Grant
    Filed: October 5, 2006
    Date of Patent: October 11, 2011
    Assignee: Sony Corporation
    Inventor: Hiroaki Takano
  • Patent number: 8027686
    Abstract: An apparatus and a method for allocating a channel capable of minimizing interference between channels in a node on an Ad-hoc network using a plurality of wireless interfaces for communication are provided. The apparatus includes a receiving unit that receives information on channel allocation from neighboring nodes, a channel search unit that searches for channels through which the node can communicate with all the neighboring nodes with reference to the received information on channel allocation, and a channel allocation unit that allocates a channel to the wireless interfaces based on the result of the search, so that it is possible to improve efficiency of network bandwidth usage and decrease interference of the channels.
    Type: Grant
    Filed: June 12, 2006
    Date of Patent: September 27, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyeong-seok Kim, Min-soo Kim, Ji-young Kong, Song-yean Cho
  • Patent number: 8019386
    Abstract: A method and system for enhancing speech intelligibility using wireless communication in portable, battery-powered and entirely user-supportable devices. The devices may be talker devices and receiver devices, where the audio signals input into the talker devices may be transmitted to the receiver devices to provide better quality audio to person using the receiver devices. The receiver devices may initiate and terminate communications with the talker devices. Additionally, the receiver devices may indicate to the talker devices the gain level the talker devices need to apply to the audio signals before sending them to the receiver devices.
    Type: Grant
    Filed: March 7, 2005
    Date of Patent: September 13, 2011
    Assignee: Etymotic Research, Inc.
    Inventors: William F. Dunn, Mead C. Killion, Andrew J. Haapapuro, Viorel Drambarean
  • Patent number: 7948373
    Abstract: A method for reducing power consumption of sensors (2) within a sensor network (1), wherein a central controller (3) calculates a transmission schedule for said sensors (2) on the basis of a correlation between sensor data transmitted from said sensors (2) to the central controller (3).
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: May 24, 2011
    Assignee: International Business Machines Corporation
    Inventors: Daniel Nikolaus Bauer, John G. Rooney, Paolo Scotton
  • Patent number: 7894862
    Abstract: A data transceiver and a data reception method for reducing power consumption in a mobile communication system are provided. The data transceiver includes a transmitter which transmits a plurality of data frames during a predetermined transmission period; and a receiver which receives data frames in the predetermined transmission period, if the transmission period is allowed and monitors with minimal operation power whether data transmission is in progress or completed in the transmission period, if the transmission period is not allowed.
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: February 22, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyo-Sun Hwang, Jong-Ae Park, Dong-Jun Lee, Jung-Hoon Suh, Kyung-Hun Jang, Young-Soo Kim
  • Patent number: 7852815
    Abstract: A method, mobile electronic device and system for synchronizing hand-off of a voice media session between a WAN/cellular network and a WLAN network. When a hand-off occurs, the connection with both networks is temporarily maintained and the voice data on both connections compared to determine differences in the delays experienced over both connections. The timing of one or both voice streams is adjusted to synchronize the voice streams, and then the handoff is completed.
    Type: Grant
    Filed: July 4, 2006
    Date of Patent: December 14, 2010
    Assignee: Research In Motion Limited
    Inventor: Vytautas Robertas Kezys
  • Patent number: 7797016
    Abstract: A method for mobile communication includes arranging a plurality of access points in a wireless local area network (WLAN) to communicate over the air with a mobile station using a common basic service set identification (BSSID) for all the access points. Upon receiving at one or more of the access points an uplink signal transmitted over the WLAN by the mobile station using the common BSSID, messages are sent and received over a communication medium linking the access points in order to select one of the access points to respond to the uplink signal. The selected one of the access points transmits a response to the mobile station.
    Type: Grant
    Filed: September 19, 2003
    Date of Patent: September 14, 2010
    Assignee: Extricom Ltd.
    Inventors: Shpak Eran, Oren Dvir
  • Patent number: 7778226
    Abstract: Some embodiments of the invention provide devices, systems and methods of coordination among multiple transceivers. For example, an apparatus in accordance with an embodiment of the invention includes: a first wireless transceiver able to operate in accordance with a first, non-scheduled, wireless communication protocol; a second wireless transceiver able to operate in accordance with a second, scheduled, wireless communication protocol; and a communication coordinator to allocate one or more first time slots for communication by said first transceiver, and to allocate one or more second time slots, which do not overlap said first time slots, for communication by said second transceiver.
    Type: Grant
    Filed: March 30, 2006
    Date of Patent: August 17, 2010
    Assignee: Intel Corporation
    Inventors: Giora Rayzman, Oren Kaidar, Miriam Ratner
  • Patent number: 7778600
    Abstract: A controller may be provided to monitor and record various activities associated with remotely located equipment, e.g. a vending machine or a service vehicle. The controller may also be operable to communicate over multiple wireless communication paths with remotely located equipment, handheld devices and/or a network operations center over multiple wireless networks.
    Type: Grant
    Filed: October 6, 2006
    Date of Patent: August 17, 2010
    Assignee: Crane Merchandising Systems, Inc.
    Inventors: Bryan W. Godwin, James M. Canter
  • Patent number: 7729305
    Abstract: A method for providing a single-frequency network (SFN) service between a base station (BS) and a mobile station (MS) in a wireless communication system. The BS sets a first segment indicator in a medium access control (MAC) message field before transmission, if a resource allocation scheme corresponds to general data transmission. The BS sets a second segment indicator in the MAC message before transmission, if the resource allocation scheme corresponds to single frequency-based data transmission. The MS receives the MAC message from the BS, and performs renumbering according to the first segment indicator or the second segment indicator included in the received MAC message.
    Type: Grant
    Filed: January 3, 2006
    Date of Patent: June 1, 2010
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Jae-Hee Cho, Bong-Gee Song, Soon-Young Yoon, Jae-Hwan Chang, In-Seok Hwang, Eun-Sun Choi, Hoon Huh, Sung-Joon Park