Via Subcarrier Patents (Class 455/45)
  • Patent number: 10237906
    Abstract: Methods and apparatuses for improving uplink transmissions in a wireless communication system are disclosed herein. In one method, a user equipment receives an indication indicating a type of data that can be transmitted using a cooperation mode. A first data is transmitted using the cooperation mode, in which the first data belongs to the type of data using the cooperation mode based on the indication. A second data is transmitted without using the cooperation mode, in which the second data does not belong to the type of data using the cooperation mode based on the indication. The cooperation mode is enabled when transmitting the first and second data.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: March 19, 2019
    Assignee: ASUSTek Computer Inc.
    Inventors: Meng-Hui Ou, Yu-Hsuan Guo
  • Patent number: 10206211
    Abstract: A method for receiving wideband (WB) LTE uplink signals. A base station may signal a first frequency tone assignment to a first user equipment (UE), the first frequency tone assignment scheduling at least a first set of subcarriers allocated to the first UE, subcarriers in the first set of subcarriers being non-contiguous in the frequency domain. Subcarriers in the first set of subcarriers may be interleaved with subcarriers in a second set of subcarriers. The first UE may perform a first single carrier frequency division multiple access (SC-FDMA) uplink transmission over the first set of subcarriers. A second UE may perform a second SC-FDMA uplink transmission, the second SC-FDMA uplink transmission spanning the second set of subcarriers.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: February 12, 2019
    Assignee: Futurewei Technologies, Inc.
    Inventors: Weimin Xiao, Qian Cheng, Philippe Sartori, Lukasz Krzymien, Jialing Liu
  • Patent number: 10193649
    Abstract: Embodiments herein disclose a method of enabling non-ICBM transmissions in the communication network. The method includes transmitting information of the number of receiver antennas at user equipments (UEs) intended to be scheduled by a transmitter in common resource elements, to a controller in the communication network. Further, the method includes receiving a number of non-Interference Cancelling Block Modulation (ICBM) transmissions from the controller. Furthermore, the method includes transmitting information indicating cell-identification numbers of participating transmitters, and corresponding index of ICBM precoder matrix of the participating transmitters to the UEs.
    Type: Grant
    Filed: April 6, 2016
    Date of Patent: January 29, 2019
    Assignees: CENTRE OF EXCELLENCE IN WIRELESS TECHNOLOGY, INDIAN INSTITUTE OF TECHNOLOGY MADRAS
    Inventors: Krishnamurthy Giridhar, Devar Sendilramkumar Subbiah, Ayyar Arun Balavenkatasubramanian
  • Patent number: 10172035
    Abstract: A storage and playback device is capable of being detachably coupled to an output device, such as speakers of an automobile. The device includes a wireless transceiver to receive compressed digital content automatically from a computer system via a wireless local area network based on user defined preferences input into the computer system. The wireless transceiver is communicably coupled to the wireless local area network when the wireless transceiver is a predetermined distance from a wireless local area network access point. The device also includes a decoder and converter to decompress and convert the digital content. The decompressed and converted digital content is sent to be played on the output device.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: January 1, 2019
    Assignee: Callahan Cellular L.L.C.
    Inventors: Craig M. Janik, Nick Kalayjian, Bruce Edwards
  • Patent number: 10136309
    Abstract: Aspects of the present disclosure relate to methods and apparatus for spectrum access server support of resource assignments based on radio access network coexistence information. An example method generally includes obtaining information regarding capability of different entities requesting use of the shared radio resources, estimating compatibility between the different entities based on the information, and allocating the shared radio resources to the different entities based on the estimated compatibility.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: November 20, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Douglas Knisely, Farhad Meshkati, Mehmet Yavuz, Rajat Prakash
  • Patent number: 10033475
    Abstract: A wireless communication system and in particular to a wireless communication system for digital audio players that provides for increased functionality, such as communication, interaction and synchronization between a computing platform and various mobile, portable or fixed digital audio players, as well as providing a communication link between the various digital audio players themselves. The computing platform may act, for example, through a wireless network or wireless communication platform, to control the digital audio players; to act as a cache of digital audio data for the digital audio players; as well as provide a gateway to the Internet to enable the digital audio players to access additional digital audio content and other information.
    Type: Grant
    Filed: May 5, 2011
    Date of Patent: July 24, 2018
    Assignee: FACEBOOK, INC.
    Inventors: Jeffrey Jonathan Spurgat, Stephen Christopher Gladwin, Hoyet Harrison Andrews, III
  • Patent number: 10024677
    Abstract: A server arranged to process GPS data to generate enhanced map data is disclosed, and comprises a plurality of navigable segments representing segments of a navigable route in an area covered by a map, the server connected with a wireless telecommunications transceiver arranged to receive GPS fixes by wireless telecommunication from a plurality of navigation devices and send the received GPS fixes to the server, the server comprising a processor arranged to generate at least one speed profile for each segment from the GPS fixes from at least two of the plurality of navigation devices, each speed profile comprising an expected speed of travel through the segment, and the server arranged to subsequently cause the transceiver to send the speed profiles to the navigation devices.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: July 17, 2018
    Assignee: TOMTOM TRAFFIC B.V.
    Inventors: Geert Hilbrandie, Ralf-Peter Schaefer, Peter Mieth, Ian Malcolm Atkinson, Martin Wolf, Ben Rutten
  • Patent number: 9755807
    Abstract: Techniques for efficiently deriving uplink channel estimates without consuming much additional uplink resources are described. A user equipment (UE) may send a request for uplink resources on a request channel (REQCH) whenever the UE desires to transmit data on the uplink. The UE may send the REQCH on a set of subcarriers and from multiple antennas, e.g., send REQCH data on data subcarriers and pilot on pilot subcarriers. A Node B may receive the request, estimate the complex channel gains for the pilot subcarriers based on received pilot symbols, and coherently demodulate received data symbols based on the channel gain estimates. The Node B may estimate the complex channel gains for the data subcarriers based on demodulated data symbols and derive a channel estimate for each UE antenna based on the channel gain estimates for the pilot and data subcarriers. The Node B may use the channel estimates for MIMO scheduling, subband scheduling, and rate selection.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: September 5, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Byoung-Hoon Kim, Durga Prasad Malladi, Hao Xu
  • Patent number: 9712371
    Abstract: A digital audio gateway device for use in a wireless network of digital audio playback devices. The gateway device is wirelessly linked to one or more digital audio playback devices to provide a gateway to the Internet for the digital audio playback devices. In addition to functioning as a gateway, the device provides additional functionality and may act as a cache of digital audio data for the various digital audio players connected in the wireless network and may also act to automatically update digital audio content on the audio players, synchronize digital audio content and playlists between the digital audio players and continue automatically or upon user request a particular playlist as the user moves from one digital audio player to another.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: July 18, 2017
    Assignee: FACEBOOK, INC.
    Inventors: Jeffrey Jonathan Spurgat, Stephen Christopher Gladwin, Hoyet Harrison Andrews, III
  • Patent number: 9699015
    Abstract: A digital audio gateway device for use in a wireless network of digital audio playback devices. The gateway device is wirelessly linked to one or more digital audio playback devices to provide a gateway to the Internet for the digital audio playback devices. In addition to functioning as a gateway, the device provides additional functionality and may act as a cache of digital audio data for the various digital audio players connected in the wireless network and may also act to automatically update digital audio content on the audio players, synchronize digital audio content and playlists between the digital audio players and continue automatically or upon user request a particular playlist as the user moves from one digital audio player to another.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: July 4, 2017
    Assignee: FACEBOOK, INC.
    Inventors: Jeffrey Jonathan Spurgat, Stephen Christopher Gladwin, Hoyet Harrison Andrews, III
  • Patent number: 9621701
    Abstract: An apparatus, device, methods, computer program product, and system are described that make a determination that a wireless device is in proximity to at least one secondary wireless device, and determine an aggregate user interface on the wireless device based on the determination.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: April 11, 2017
    Assignee: SEARETE LLC
    Inventors: Edward K. Y. Jung, Royce A. Levien, Robert W. Lord, Mark A. Malamud, John D. Rinaldo, Jr., Lowell L. Wood, Jr.
  • Patent number: 9407385
    Abstract: A wireless communication system and in particular to a wireless communication system for digital audio players that provides for increased functionality, such as communication, interaction and synchronization between a computing platform and various mobile, portable or fixed digital audio players, as well as providing a communication link between the various digital audio players themselves. The computing platform may act, for example, through a wireless network or wireless communication platform, to control the digital audio players; to act as a cache of digital audio data for the digital audio players; as well as provide a gateway to the Internet to enable the digital audio players to access additional digital audio content and other information.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: August 2, 2016
    Assignee: FACEBOOK, INC.
    Inventors: Jeffrey Jonathan Spurgat, Stephen Christopher Gladwin, Hoyet Harrison Andrews, III
  • Patent number: 9325430
    Abstract: A communication system includes: an interrogator transmitting an interrogation signal while switching a carrier-wave frequency and receiving a response signal; and a plurality of responders each having a unique resonant frequency and returning the response signal in response to the interrogation signal with the own resonant frequency.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: April 26, 2016
    Assignee: SONY CORPORATION
    Inventor: Hiroyuki Ino
  • Patent number: 9198224
    Abstract: A cellular mobile station including a modem processor and memory. The memory includes instructions for the modem processor to perform layer 1 processor operations, layer 2 processor operations, and layer 3 processor operations. The modem processor executes the instructions to perform processor operations for the cellular mobile station to communication data as per a cellular communications protocol. In one example, the mobile station includes different levels of memory to provide different deterministic access times.
    Type: Grant
    Filed: February 5, 2012
    Date of Patent: November 24, 2015
    Inventors: John J. Vaglica, Christopher K. Y. Chun, Jose G. Corleto-Mena, Arnaldo R. Cruz, Jianping Tao, Mieu V. Vu, Mark E. Elledge, Charbel Khawand, Arthur M. Goldberg, David J. Hayes
  • Patent number: 9160471
    Abstract: A wireless communication system and in particular to a wireless communication system for digital audio players that provides for increased functionality, such as communication, interaction and synchronization between a computing platform and various mobile, portable or fixed digital audio players, as well as providing a communication link between the various digital audio players themselves. The computing platform may act, for example, through a wireless network or wireless communication platform, to control the digital audio players; to act as a cache of digital audio data for the digital audio players; as well as provide a gateway to the Internet to enable the digital audio players to access additional digital audio content and other information.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: October 13, 2015
    Assignee: FACEBOOK, INC.
    Inventors: Jeffrey Jonathan Spurgat, Stephen Christopher Gladwin, Hoyet Harrison Andrews, III
  • Patent number: 9100941
    Abstract: A method is disclosed that includes determining a preamble, at least a portion of which is unique to one or more user equipment for a device-to-device communication of one or more subframes on a band, and performing the device-to-device communication of the one or more subframes comprising the preamble on the band. The band could be, e.g., a lightly-licensed band, a licensed-exempt or unlicensed band, a secondary usage of a band of the licensed band, a band in TV white space, or a licensed band. Apparatus and computer program products are also disclosed.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: August 4, 2015
    Assignee: Nokia Solutions and Networks Oy
    Inventors: Rapeepat Ratasuk, Sassan Iraji, Antti Piipponen, Antti Sorri, Mikko Aleksi Uusitalo, Nitin Mangalvedhe
  • Patent number: 9008708
    Abstract: The invention relates to a process for detection of a signal in a frequency sub-band of a frequency band of an acquired signal y(t), the process comprising: acquisition of the signal y(t) in a frequency band; frequential analysis of said acquired signal y(t) to obtain at least one frequential signal Y with NFFT frequential components; breakdown into M frequency sub-bands i of size N of the frequential signal Y, the size of each frequency sub-band being a function of the bandwidth of the signal to be detected; determination, in the frequential domain, for each frequency sub-band, of a criterion Ti, i=1, . . . , M as a function of the energy of the signal in the frequency sub-band i and of the coefficient two of the autocorrelation function of the signal in the frequency sub-band i; decision, as a function of the criterion Ti, to determine whether a signal is detected in the sub-band i.
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: April 14, 2015
    Assignee: Commissariat à l'Energie Atomique et aux Energies Alternatives
    Inventors: Matthieu Gautier, Vincent Berg
  • Patent number: 8982924
    Abstract: Various embodiments are directed to systems and methods for combining a plurality of codes. The plurality of codes may be binary codes having possible logical values of ?1 and +1 and may comprise an even number of codes. An output of the combining v0,k may be given by: v0=sgn(vi), where vi is the sum of the first plurality of codes at the first time. Embodiments for allocating different power levels among various codes are presented.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: March 17, 2015
    Assignee: The Aerospace Corporation
    Inventor: Rajendra Kumar
  • Patent number: 8964719
    Abstract: A method and apparatus for allocating subcarriers in an orthogonal frequency division multiple access (OFDMA) system is described. In one embodiment, the method comprises allocating at least one diversity cluster of subcarriers to a first subscriber and allocating at least one coherence cluster to a second subscriber.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: February 24, 2015
    Assignee: Adaptix, Inc.
    Inventors: Xiaodong Li, Hui Liu, Kemin Li, Wenzhong Zhang
  • Patent number: 8957765
    Abstract: An electronic device (100) and method for operating the same. The electronic device (100) comprises at least two working modes and comprises a connection state acquisition unit (110) and a mode switching unit (12). The connection state acquisition unit (110) is used for acquiring the connection state between the electronic device (100) and a remote control unit, and the remote control unit is used for remotely controlling the electronic device (100). The mode switching unit (12) is used for switching the working mode of the electronic device (100) according to the connected state.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: February 17, 2015
    Assignees: Beijing Lenovo Software Ltd., Lenovo (Beijing) Co., Ltd.
    Inventors: Xiaobing Guo, Yi Xiao, Wei Xie, Dengfeng Wu
  • Patent number: 8948154
    Abstract: Techniques for supporting data transmission based on a low-complexity transmission scheme are described. In one design, a first user equipment (UE) generates a first transmission for a single subcarrier assigned to the first UE. The first UE sends the first transmission on the single subcarrier concurrently with a SC-FDMA transmission sent on multiple subcarriers by a second UE. In one design, the first UE generates a continuous sinusoidal signal at a frequency corresponding to the single subcarrier. The first UE modulates the continuous sinusoidal signal with data symbols and reference symbols. In one design, the first transmission includes a cyclic prefix followed by a useful portion in each symbol period and has phase discontinuity at symbol boundary. A base station processes a received signal to recover the first transmission sent by the first UE and the SC-FDMA transmission sent by the second UE.
    Type: Grant
    Filed: February 7, 2011
    Date of Patent: February 3, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Peter Gaal, Ravi Palanki
  • Patent number: 8928492
    Abstract: A system to provide a warning to a person in a vehicle when the vehicle is proximal or in a danger area to an emergency services vehicle or a hazard area, the system comprising an emitter on the emergency services vehicle or in or adjacent the hazard area, a radio associated with the vehicle, the radio having a receiver to receive the signal from the emitter, a speaker, a decoder to send a warning signal to the speaker when the receiver receives a signal from the emitter.
    Type: Grant
    Filed: August 7, 2007
    Date of Patent: January 6, 2015
    Inventor: Anthony Joseph Boscacci
  • Patent number: 8885740
    Abstract: A first preamble for a first data unit includes a first long training field and a first signal field modulated according to a first technique. The first data unit is generated according to a first data unit format and includes the first preamble. A second preamble, generated for a second data unit, includes a second signal field and a second long training field. Information in the second signal field is repeated and/or the second long training field is generated so that a duration of the second long training field is longer than a duration of the first long training field. A portion of the second signal field is modulated according to a second technique or a portion of the second long training field is modulated according to the second technique to signal to a receiver that the second data unit is formatted according to a second data unit format.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: November 11, 2014
    Assignee: Marvell World Trade Ltd.
    Inventors: Hongyuan Zhang, Rohit U. Nabar, Raja Banerjea, Yong Liu, Sudhir Srinivasa, Hyukjoon Kwon
  • Patent number: 8706124
    Abstract: Method, apparatus, and computer program product embodiments are disclosed to setup data path transfer between concurrently operating frequency bands of multiband wireless LAN (WLAN) devices. The embodiments provide an enhancement to the Fast Session Transfer (FST) by introducing a new Information Element (IE) in the Fast Session Transfer (FST) frames to enable negotiating the parameters to be established as a result of switching of at least a portion of the existing data/traffic streams to another frequency band. The new Information Element (IE) includes at least the number of streams being switched and for each stream being switched the stream ID. The new Information Element enables the transmitting and receiving devices to negotiate the connection setup parameters associated with a requested transfer of the operating frequency band.
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: April 22, 2014
    Assignee: Nokia Corporation
    Inventor: Naveen Kumar Kakani
  • Patent number: 8705496
    Abstract: A method and apparatus for controlling transmission and reception of dedicated pilots according to an MCS level in a wireless communication system are provided, in which an MCS level is determined for a data channel, the amount of resources for sending dedicated pilots is determined in inverse proportion to the MCS level, a pilot channel signal including basic pilots mapped to resources allocated to a pilot channel, a control channel signal including control information mapped to resources allocated to a control channel, and a data channel signal including the dedicated pilots mapped to the determined amount of resources being part of resources allocated to the data channel and data mapped to the remaining of the resources allocated to the data channel are generated, and the pilot channel signal, the control channel signal, and the data channel signal are multiplexed and sent in the mapped resources.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: April 22, 2014
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Yun-Ok Cho, Hwan-Joon Kwon, Jin-Kyu Han, Yu-Chul Kim
  • Patent number: 8699429
    Abstract: There is provided a MIMO wireless communication system, which comprises at least one base station having plural transmitting antennas and at least one user equipment having at least one receiving antennas, the base station being capable of accommodating plural user equipments by precoding based on a codebook, wherein, each of the plural user equipments comprises: a channel estimation unit for conducting a channel estimation based on a pilot signal transmitted from the base station, to obtain a channel information; a codeword determination unit for determining a first codeword that results in the maximum signal-noise-ratio, and at least one second codeword that results in the minimum signal-noise-ratio, based on the channel information; and a transmission unit for feedbacking the first codeword and the second codeword(s) to the base station, the base station is configured to schedule the user equipments based on the first codeword and the second codeword so that a predetermined system performance metric is opt
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: April 15, 2014
    Assignee: Fujitsu Limited
    Inventors: Hua Zhou, Jie Zhang
  • Patent number: 8699319
    Abstract: A base station device may include, but is not limited to: a mapping unit; and at least one reception antenna. The mapping unit is configured to assign a plurality of first subcarriers to a first communication device, and assign a part of the plurality of first subcarriers to at least one other communication device. The at least one reception antenna is configured to receive from one of the first communication device and the at least one other communication device, a plurality of frequency signals allocated to the plurality of first subcarriers. Each of the plurality of frequency signals is converted from coded transmission data of the one of the first communication device and the at least one other communication device.
    Type: Grant
    Filed: August 13, 2008
    Date of Patent: April 15, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kazunari Yokomakura, Yasuhiro Hamaguchi, Shimpei To, Minoru Kubota, Hideo Namba, Seiichi Sampei, Shinichi Miyamoto, Shinsuke Ibi
  • Patent number: 8687722
    Abstract: An OFDM wireless communication system with an access point and a plurality of remote user terminals estimates an uplink channel. The access point receives training symbols transmitted by the user terminals. Each training symbol includes pilot symbols associated with phase offset estimation OFDM sub-carriers. The phase offset estimation sub-carriers include subsets of sub-carriers associated with each respective user terminals. Each subset is used exclusively by the associated user terminal during channel estimation. The channel estimation sub-carriers are used by all user terminals. For each terminal the access point estimates symbol-specific phase offsets specific to the user terminal using the received pilot symbols associated with the user specific subset of the phase offset estimation sub-carriers. The access point also estimates the uplink channel using the user-terminal-symbol-specific phase offset estimates and the received symbols.
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: April 1, 2014
    Inventors: Hajime Suzuki, Joseph Abraham Pathikulangara, David Humphrey
  • Patent number: 8634761
    Abstract: An authentication controller coupled to a first communication port of a portable media device is allowed to provide authentication on behalf of an accessory device coupled to a second communication port of the portable media device. In one embodiment, a cross transport connector includes a connector configured to couple with an accessory and a connector configured to couple with a portable media device such that the accessory can be coupled to the second communication port of the portable media device. The cross-transport connector also includes an authentication controller. The authentication controller may request authentication from the media device over the first communication port of the portable media device. The request may also include an identifier of the second port, to which authenticated permissions obtained via the first port may be transferred.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: January 21, 2014
    Assignee: Apple Inc.
    Inventor: Gregory T. Lydon
  • Patent number: 8626225
    Abstract: A method for reporting power headroom-related information for a plurality of aggregated carriers. The method includes reporting the power headroom-related information for a number of the aggregated carriers that is less than or equal to the total number of aggregated carriers.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: January 7, 2014
    Assignee: BlackBerry Limited
    Inventors: Youn Hyoung Heo, Zhijun Cai, Andrew Mark Earnshaw, Sean McBeath, Mo-Han Fong
  • Patent number: 8594574
    Abstract: Methods and apparatus are provided for receiving a first signal and generating an output signal indicative of radio data system (“RDS”) information. A receiver circuit of the invention can include mixer circuitry, lowpass filter circuitry, downsampler circuitry, and decoder circuitry. Advantageously, the receiver circuit can operate entirely within the digital domain, promoting interoperability with digital frequency modulation (“FM”) demodulator circuitry.
    Type: Grant
    Filed: November 19, 2012
    Date of Patent: November 26, 2013
    Assignee: Marvell International Ltd.
    Inventors: Jungwon Lee, Dimitrios-Alexandros Toumpakaris, Hui-Ling Lou, Chris Cheng-Chieh Lee
  • Patent number: 8565754
    Abstract: A communication device includes: an obtaining unit that obtains use state information of the communication device during a call with another communication device; and a transmission unit that transmits an obtaining command for use state information of the other communication device to the other communication device and the use state information obtained to an external part.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: October 22, 2013
    Assignee: Fujitsu Limited
    Inventors: Masahide Noda, Kazuki Matsui
  • Patent number: 8514694
    Abstract: A network informs a user equipment about the number of usable sub-carriers in a frequency spectrum. Based on this, and its knowledge of a generic size of a resource block, the user equipment is able to determine a number of sub-carriers that are to be allocated to one or more fractional resource blocks. Rules, which may be predefined in the standard, or may be signalled to the user equipment, allow the user equipment to determine which of the usable sub-carriers should be allocated to the fractional resource block or blocks.
    Type: Grant
    Filed: August 27, 2007
    Date of Patent: August 20, 2013
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Dirk Gerstenberger, Stefan Parkvall, Per Beming, Erik Dahlman
  • Patent number: 8503373
    Abstract: Systems and methodologies are described that facilitate multiplexing of localized transmissions and distributed transmissions to reduce overhead transmission costs. According to various aspects, systems and/or methods are described that enable selection of an optimal transmission scheme in order to accommodate various traffic services, user abilities and channel properties.
    Type: Grant
    Filed: January 12, 2007
    Date of Patent: August 6, 2013
    Assignee: QUALCOMM Incorporated
    Inventors: Jelena M. Damnjanovic, Durga Prasad Malladi
  • Patent number: 8477696
    Abstract: The object is achieved by providing a transmission apparatus with: assignment means configured to assign, to each user, one of a frequency block that is obtained by dividing a system bandwidth into each block of continuous frequency subcarriers and a distributed type frequency block that include a frequency subcarrier that is discretely distributed in the system bandwidth; and mapping means configured to assign transmission data to one of the frequency block and the distributed type frequency block according to the assignment.
    Type: Grant
    Filed: January 10, 2007
    Date of Patent: July 2, 2013
    Assignee: NTT DoCoMo, Inc.
    Inventors: Yoshihisa Kishiyama, Kenichi Higuchi, Mamoru Sawahashi
  • Patent number: 8467728
    Abstract: A method of allocating radio resources in a multi-carrier system is disclosed, by which a signaling message can be efficiently transmitted according to necessity of a user equipment. In a user equipment of a mobile communication system transceiving data using a plurality of subcarriers, the present invention includes the steps of if the signaling message to be transmitted is generated in the user equipment, generating a preamble sequence according to a user equipment identifier to identify the user equipment, transmitting a preamble signal including the preamble sequence and the signaling message to a base station, and receiving an acknowledgement signal for the preamble signal generated according to the user equipment identifier.
    Type: Grant
    Filed: February 6, 2007
    Date of Patent: June 18, 2013
    Assignee: LG Electronics Inc.
    Inventors: Hak Seong Kim, Bong Hoe Kim, Joon Kui Ahn, Dong Youn Seo, Jung Hoon Lee, Young Woo Yun, Suk Hyon Yoon, Eun Sun Kim, Ki Jun Kim
  • Patent number: 8457572
    Abstract: An audio comparison method and apparatus compares audio streams by measuring the times of volume peaks in the audio streams and identifying correlations between the peaks in the audio streams, subject to possible delay between the streams. The audio comparison allows the identification of audio streams including the same audio content even in the presence of delay and distortion and using low processing power. The audio comparison has particular application in car radios to allow automatic retuning.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: June 4, 2013
    Assignee: NXP B.V.
    Inventor: Erik Keukens
  • Patent number: 8442439
    Abstract: A method of allocating radio resources in a multi-carrier system is disclosed, by which a signaling message can be efficiently transmitted according to necessity of a user equipment. In a user equipment of a mobile communication system transceiving data using a plurality of subcarriers, the present invention includes the steps of if the signaling message to be transmitted is generated in the user equipment, generating a preamble sequence according to a user equipment identifier to identify the user equipment, transmitting a preamble signal including the preamble sequence and the signaling message to a base station, and receiving an acknowledgement signal for the preamble signal generated according to the user equipment identifier.
    Type: Grant
    Filed: February 6, 2007
    Date of Patent: May 14, 2013
    Assignee: LG Electronics Inc.
    Inventors: Hak Seong Kim, Bong Hoe Kim, Joon Kui Ahn, Dong Youn Seo, Jung Hoon Lee, Young Woo Yun, Suk Hyon Yoon, Eun Sun Kim, Ki Jun Kim
  • Patent number: 8437697
    Abstract: Embodiments for methods and apparatuses for processing a multi-carrier signal are disclosed. One method includes shaping a frequency spectrum of a multi-carrier transmit signal wherein an amplitude of a plurality of subcarriers of the multi-carrier transmit signal is increased relative to at least one other subcarrier of the multi-carrier transmit signal. The shaped frequency spectrum multi-carrier transmit signal is amplified with a power amplifier, wherein a power level of an output of the power amplifier is greater than a rated power level of the power amplifier.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: May 7, 2013
    Assignee: Broadcom Corporation
    Inventors: Sriraman Dakshinamurthy, Robert G. Lorenz, Ming Hu, Derek K. Shaeffer
  • Patent number: 8374594
    Abstract: In a radio communication system formed by a plurality of radio base stations having respective service areas and a mobile radio terminal configured to transmit a data transmission request through one radio base station and receive requested data through at least one radio base stations, a radio control station is provided to predict a moving route of the mobile radio terminal according to a terminal location information obtained from the mobile radio terminal upon receiving the data transmission request from the mobile radio terminal through the one radio base station, select those radio base stations which have service areas containing at least a part of the predicted moving route, and deliver requested data to the selected radio base stations.
    Type: Grant
    Filed: February 9, 2007
    Date of Patent: February 12, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Katsumi Yamato, Kiyoshi Toshimitsu
  • Patent number: 8320320
    Abstract: A method of scheduling transmissions in a multi-carrier transmission system, includes, for each downlink transmission frame: partitioning the downlink transmission frame into a plurality of data regions each including an equal number of slots, each data region corresponding to a respective logical band; for a currently active connection: a) creating a first set of logical bands not fully occupied for transmission and having a minimum boosting level making the transmission receivable by a receiving terminal; b) extracting from the first set, a second set of logical bands available for allocating a maximum number of slots for downlink transmission to the active connection; and c) selecting the logical band for downlink transmission to the active connection from the second set as the logical band that, after allocating the slots to the considered connection, leaves a residual number of slots equal to or smaller than a predetermined minimum residual in the logical band, e.g.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: November 27, 2012
    Assignee: Telecom Italia S.p.A.
    Inventors: Marco Caretti, Claudio Cicconetti, Ivano Salvatore Collotta, Paolo Tongiani, Luciano Lenzini, Enzo Mingozzi
  • Patent number: 8315568
    Abstract: Methods and apparatus are provided for receiving a first signal and generating an output signal indicative of radio data system (“RDS”) information. A receiver circuit of the invention can include mixer circuitry, lowpass filter circuitry, downsampler circuitry, and decoder circuitry. Advantageously, the receiver circuit can operate entirely within the digital domain, promoting interoperability with digital frequency modulation (“FM”) demodulator circuitry.
    Type: Grant
    Filed: January 6, 2012
    Date of Patent: November 20, 2012
    Assignee: Marvell International Ltd.
    Inventors: Jungwon Lee, Dimitrios-Alexandros Toumpakaris, Hui-Ling Lou, Chris Cheng-Chieh Lee
  • Patent number: 8275059
    Abstract: A frequency synchronization apparatus includes: a correlating unit that obtains a first correlation value by correlating a known reference guard interval of an OFDM symbol and a reference copy interval corresponding to the reference guard interval, and obtains a second correlation value by correlating the estimate guard interval and an estimate copy interval corresponding to the estimate guard interval; a determining unit that compares the first and second correlation values to determine a first case where the first correlation value is larger by a pre-set magnification than the second correlation value, a second case where the second correlation value is larger by a pre-set magnification than the first correlation value, and a third case which is not the first case nor the second case; and a frequency offset estimating unit that estimates a frequency offset by using a correlation value corresponding to any one of the first to third.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: September 25, 2012
    Assignees: Samsung Electro-Mechanics Co., Ltd., Sungyunkwan University Foundation for Corporate Collaboration
    Inventors: Bon Young Koo, Hyung Jin Choi, Se Bin Im, Jung In Kim
  • Patent number: 8275319
    Abstract: Embodiments for methods and apparatuses for processing a multi-carrier signal are disclosed. One method includes shaping a frequency spectrum of a multi-carrier transmit signal wherein an amplitude of a plurality of subcarriers of the multi-carrier transmit signal is increased relative to at least one other subcarrier of the multi-carrier transmit signal. The shaped frequency spectrum multi-carrier transmit signal is amplified with a power amplifier, wherein a power level of an output of the power amplifier is greater than a rated power level of the power amplifier.
    Type: Grant
    Filed: March 8, 2010
    Date of Patent: September 25, 2012
    Assignee: Broadcom Corporation
    Inventors: Sriraman Dakshinamurthy, Robert G. Lorenz, Ming Hu, Derek K. Shaeffer
  • Patent number: 8265182
    Abstract: Provided is a radio transmission device (100) which can flexibly cope with a request for assuring an error ratio feature during a high transmission rate, a request for increasing a cell coverage, or the like. The radio transmission device (100) includes a first subcarrier modulation unit (104) which forms a first subcarrier modulation signal obtained by converting a plurality of modulation signals into a frequency region; a second subcarrier modulation unit (105) which forms a second subcarrier modulation signal obtained by parallel conversion of a plurality of signals; an IFFT unit (111) which forms an OFDM signal by performing inverse Fourier transform on the first and the second subcarrier modulation signal; and a subcarrier mapping unit (110) which controls allocation of the first and the second subcarrier modulation signals.
    Type: Grant
    Filed: March 21, 2008
    Date of Patent: September 11, 2012
    Assignee: Panasonic Corporation
    Inventors: Takaaki Kishigami, Shozo Okasaka, Yutaka Murakami
  • Patent number: 8249001
    Abstract: A base station assigns a subcarrier for downlink communications under Orthogonal Frequency Division Multiple Access. Before downlink communications with a mobile station, based on carrier sensing by the mobile station, the base station detects information concerning an available subcarrier from downlink signals using a modulating unit. The information concerning the available subcarrier is stored in a downlink-information sharing unit and is shared among the base station and the adjacent base stations. A downlink subcarrier setting unit sets the available subcarrier for downlink communications.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: August 21, 2012
    Assignee: Fujitsu Limited
    Inventors: Yoshiyuki Oota, Takanori Iwamatsu
  • Patent number: 8244192
    Abstract: In one embodiment, a method of wirelessly transmitting magnetic resonance (MR) data is provided. The method comprises steps of obtaining at least one MR signal having a Larmor frequency from a radio frequency (RF) channel in an RF coil, the RF coil comprising multiple RF channels, each RF channel associated with a single imaging element, generating a modulation signal based on the MR signal, generating a carrier signal with a predetermined frequency, the predetermined frequency being associated with the RF channel and using the modulation signal to phase modulate the carrier signal to form a phase-modulated signal.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: August 14, 2012
    Assignee: General Electric Company
    Inventors: Ramabadran Prasidh, Kumar Santosh, Boskamp Eddy
  • Patent number: 8238811
    Abstract: An authentication controller coupled to a first communication port of a portable media device is allowed to provide authentication on behalf of an accessory device coupled to a second communication port of the portable media device. In one embodiment, a cross transport connector includes a connector configured to couple with an accessory and a connector configured to couple with a portable media device such that the accessory can be coupled to the second communication port of the portable media device. The cross-transport connector also includes an authentication controller. The authentication controller may request authentication from the media device over the first communication port of the portable media device. The request may also include an identifier of the second port, to which authenticated permissions obtained via the first port may be transferred.
    Type: Grant
    Filed: January 7, 2009
    Date of Patent: August 7, 2012
    Assignee: Apple Inc.
    Inventor: Gregory T. Lydon
  • Patent number: 8195465
    Abstract: A technique is described for use in a decoder configured to decode a series of frames representing an encoded audio signal. The technique is for transitioning between a lost frame and one or more received frames following the lost frame in the series of frames. In accordance with the technique, an output audio signal associated with the lost frame is synthesized. An extrapolated signal is generated based on the synthesized output audio signal. A time lag is calculated between the extrapolated signal and a decoded audio signal associated with the received frame(s), wherein the time lag represents a phase difference between the extrapolated signal and the decoded audio signal. The decoded audio signal is time-warped based on the time lag, wherein time-warping the decoded audio signal comprises stretching or shrinking the decoded audio signal in the time domain.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: June 5, 2012
    Assignee: Broadcom Corporation
    Inventors: Robert W. Zopf, Juin-Hwey Chen, Jes Thyssen
  • Patent number: RE44390
    Abstract: Aspects of the invention comprise a digital mobile terminal system for accessing mobile internet services including a VHF/AM/FM radio receiver and a subsystem that handles interfaces and interactions between the digital mobile terminal and a radio network via a digital (e.g., RDS) data stream, interfaces and interactions between the digital mobile terminal and a mobile internet services platform, and interfaces and interactions between the digital mobile terminal and a user seeking to access and interact with mobile internet services. The present invention also comprises a radio broadcasting server platform for transmitting an RDS data stream including a subsystem that handles interfaces and interaction between the radio broadcasting server platform and a radio network via the digital (e.g., RDS) data stream and interfaces and interactions between the radio broadcasting server platform and a mobile internet services platform.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: July 23, 2013
    Assignee: Nokia Corporation
    Inventors: Jyrki Jarvi, Jukka Nihtila