Channel Seizing Patents (Class 455/516)
  • Patent number: 10420072
    Abstract: Embodiments include methods and apparatus for wireless network communication between a device that operates a radio in compliance with a wireless communication standard and another device that may not be capable of complying with the wireless communication standard. In an embodiment the non-complaint device is a receiver only. Information is broadcast or advertised or otherwise transmitted by the compliant device according to the protocol and embodiments encode information on top of the protocol for decoding by the receiving device, which does not decode the protocol.
    Type: Grant
    Filed: October 12, 2015
    Date of Patent: September 17, 2019
    Assignee: Everactive, Inc.
    Inventors: David D. Wentzloff, Benton H. Calhoun, Nathan E. Roberts, Nirmalendu Patra
  • Patent number: 10091669
    Abstract: Methods and apparatus for reducing voice call drop rate are disclosed. Existing devices do not account for the added burden of background services on voice calls. Specifically, multi-RAB scenarios (e.g., a voice call and background services) can experience significant reduction in call quality. Accordingly, in one exemplary embodiment, background services that are not time-critical and/or application-critical can be suspended while a voice call is in progress. By suspending background traffic during a call, the device can avoid unnecessary multi-RAB voice call operation, which significantly improves overall network operation and user experience.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: October 2, 2018
    Assignee: Apple Inc.
    Inventors: Umesh K. Shukla, Sachin J. Sane
  • Patent number: 10070442
    Abstract: The present disclosure relates to a wireless communication system and to a method for connecting RRC for controlling overloads in the wireless communication system. The method includes the steps of: a mobile signal processing unit transferring an overload control message including preference priority information for overload control to a base station; the base station storing the preference priority information and receiving an RRC connection request message including service information for performing a service from a UE; the base station determining whether the service information is included in the preference priority information when receiving the RRC connection request message; and the base station transmitting an RRC connection allowance message to the UE when the service information is included in the preference priority information. Accordingly, the base station can efficiently control the overload for each service performed in the UE.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: September 4, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Su Jung Yu
  • Patent number: 9936534
    Abstract: The present invention discloses a data transmission method and apparatus. According to the present invention, when transmitting data by using a first radio bearer, a UE receives radio resource control connection reconfiguration information sent by a base station; the UE obtains a second radio bearer according to the radio resource control connection reconfiguration information; the UE sends radio resource control connection reconfiguration completion information to the base station; the UE transmits a part of the data which has not been transmitted by using the second radio bearer. The solutions provided by the embodiments of the present invention are suitable to be adopted during switch between an adaptive streaming mode and a progressive download mode.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: April 3, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jianning Liu, Patrice Hede, Anni Wei, Lei Zhu
  • Patent number: 9763131
    Abstract: Embodiments of the present invention provide a method and a system for transmitting a data packet, a sending end device and a receiving end device. The method includes: determining quality of service requirement information of service data according to content or type of the service data; carrying the quality of service requirement information in a data packet corresponding to the service data; and sending the data packet carrying the quality of service requirement information to a receiving end, so as for the receiving end to perform scheduling processing on the data packet according to the quality of service requirement information. By adopting the technical solution of the embodiments of the present invention, a received data packet is scheduled according to the quality of service requirement information, thereby effectively improving the processing efficiency of the data packet.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: September 12, 2017
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Guanglin Han, Jian Zhang
  • Patent number: 9736912
    Abstract: An illumination device includes a reception portion configured to receive a terminal ID stored by a radio terminal; a transmission portion configured to transmit the received terminal ID and a device ID; an illumination portion configured to emit light from a light source; and a housing portion configured to be detachably provided to the illumination portion and include a secondary battery capable of supplying power to the reception portion and the transmission portion.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: August 15, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventor: Shin Kusakari
  • Patent number: 9615352
    Abstract: Lazy-lock control methods for use with a real-time communication network are presented, the real-time communication network incorporating a right-to-send procedure, the methods including: a) sending a first floor control request message to the real-time communication network by a first requesting user equipment (UE), the real-time communication network configured for connecting the first requesting UE with a receiving UE; b) sending a first media to the real-time communications network by the first requesting UE before receiving a floor control grant message from the real-time communications network; c) substantially simultaneously sending the floor control grant message to the first requesting UE and a floor taken message to the at least one receiving UE by the real-time communication network; and d) forwarding the first media to the at least one receiving UE by the real-time communications network.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: April 4, 2017
    Assignee: Sonim Technologies, Inc.
    Inventor: Veerabhadra Gundu
  • Patent number: 9271257
    Abstract: A radio affiliates, via a first channel, with at least one talk group the radio is interested in receiving calls from, sends a request to transmit location information on a separate revert channel, and receives a first grant time period to transmit location information on a particular revert channel. The radio moves at substantially the first grant time period, away from the first channel to the revert channel to transmit location information or request a second grant time period on the revert channel, receives an announcement on the revert channel during the first grant time period that a call of interest associated with the at least one talk group started while the radio was on the revert channel, determines an assigned traffic channel for the call of interest, and switches from the revert channel to the assigned traffic channel in order to receive the call of interest.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: February 23, 2016
    Inventors: Yueh Ching Chung, Thomas B Bohn, Dipendra M Chowdhary, Hun Weng Khoo, Satyanarayan R Panpaliya, Teik Choon Teh
  • Patent number: 9237447
    Abstract: A device and a method for managing access rights to a wireless network uses wireless connection devices advantageously based on a smart card, which enable the wireless connection to the network once connected to a terminal. These devices include devices for time and/or geographical management of access to the network and authentication device. These devices can be easily preprogrammed by the entity managing the service and then distributed to the users.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: January 12, 2016
    Assignee: MORPHO
    Inventors: Cyrille Pepin, Francois Lecocq
  • Patent number: 9002389
    Abstract: Embodiments of the present invention disclose a method, an apparatus, and a terminal for determining a transmission mode, which relate to the field of communications technologies and are invented to enable a selection of a transmission mode with lower power consumption for a terminal to reduce the power consumption of the terminal. The method includes: selecting a transmission mode for a terminal according to a network resource condition; judging whether the selected transmission mode matches according to capability information reported by the terminal and if the selected transmission mode matches, setting the transmission mode as a current transmission mode of the terminal. The embodiments of the present invention are mainly applicable to a Long Term Evolution Advance (LTE-A) system.
    Type: Grant
    Filed: September 16, 2011
    Date of Patent: April 7, 2015
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Dengkun Xiao, Wenjie Wang, Wurong Zhang
  • Patent number: 8982974
    Abstract: Receiver synchronization techniques (RST), contributing more accurate synchronization of receiver clock to OFDM composite frame combined with much faster acquisition time and better stability of the receiver clock, and phase and frequency recovery techniques, comprising a software controlled clock synthesizer (SCCS) for high accuracy phase & frequency synthesis producing synchronized low jitter clock from external time referencing signals or time referencing messages wherein SCCS includes a hybrid PLL (HPLL) enabling 1-50,000 frequency multiplication with very low output jitter independent of reference clock quality.
    Type: Grant
    Filed: February 10, 2013
    Date of Patent: March 17, 2015
    Inventor: John W Bogdan
  • Publication number: 20150072716
    Abstract: A public safety (PS) device has a channel operating configuration during communications over a PS network. A key term associated with a PS incident is registered on the PS network. The PS network identifies any communication on the PS network that refers to the registered key term, modifies the channel operating configuration in response to such identification, and alerts a PS person operating the PS device to an identified communication by transmitting the identified communication to the PS person via the modified channel operating configuration.
    Type: Application
    Filed: September 11, 2013
    Publication date: March 12, 2015
    Inventor: DAVID E. KLEIN
  • Patent number: 8977250
    Abstract: A processing device local context is determined, and a communication of the processing device is filtered at least in part according to the local context.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: March 10, 2015
    Assignee: The Invention Science Fund I, LLC
    Inventors: Mark A. Malamud, Paul G. Allen, Royce A. Levien, John D. Rinaldo, Jr., Edward K. Y. Jung
  • Patent number: 8971468
    Abstract: The methods and apparatus disclosed herein provide an operative system for increasing the resolution of serial DRUs based on interleaved free running oversamplers. In particular, this system uses incoming data to measure and to compensate the skew between two or more free running oversamplers (e.g., SerDes), without the need for any hardware design requirement relating to the precision of the relative skew of the oversamplers.
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: March 3, 2015
    Assignee: Xilinx, Inc.
    Inventor: Paolo Novellini
  • Patent number: 8971813
    Abstract: A method is provided for avoiding in-device interference. The method may include determining a portion of a frequency band used for data reception by a first wireless modem that may be affected by interference from a data transmission by a second wireless modem. The method may further include causing an indication of the determined portion of the frequency band to be provided to the first wireless modem. A corresponding apparatus and computer program product are also provided.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: March 3, 2015
    Assignee: Broadcom Corporation
    Inventors: Christopher Peter Callender, Juho Mikko Pirskanen
  • Patent number: 8923881
    Abstract: To start secondary use of a spectrum without causing an adverse effect on a communication service for primary usage, provided is a communication control method including the steps of acquiring data related to a communication environment surrounding a first communication device at the first communication device, determining that a second communication service using a part or whole of a spectrum assigned to a first communication service is available when the acquired data related to the communication environment satisfies a first condition, and permitting usage of the second communication service when the data related to the communication environment satisfies a second condition at the first communication device or a second communication device.
    Type: Grant
    Filed: January 12, 2010
    Date of Patent: December 30, 2014
    Assignee: Sony Corporation
    Inventors: Ryo Sawai, Ryota Kimura
  • Patent number: 8914021
    Abstract: A mobile data network includes a radio access network and a core network. A first service mechanism in the radio access network breaks out data coming from a basestation. When data is broken out by the first service mechanism, the data is delivered at the edge, which means the true activity of the channel is not visible to the core network. In order to maintain the high-speed channel, channel maintenance data packets are sent to and from the radio network controller on the network tunnel. The maintenance channel is also used to send cache miss data to a subscriber when a cache miss occurs at the edge of the mobile data network, without regard to a need for channel maintenance data packets.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: December 16, 2014
    Assignee: International Business Machines Corporation
    Inventors: Ronald L. Billau, Canio Cillis, Vincenzo V. Di Luoffo, Ekkart Leschke
  • Patent number: 8892038
    Abstract: A Bluetooth master device is capable of performing search and connection method for Bluetooth devices. The Bluetooth master device receives device information from at least one Bluetooth device in response to a Bluetooth device search request made by a user. A responding Bluetooth device that is capable of providing a Bluetooth service in a preset service list is selected. The Bluetooth master device sends a name request signal to the selected Bluetooth device and displays a device name received from the selected Bluetooth device.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: November 18, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jong Hwan Kim
  • Patent number: 8891667
    Abstract: A transmission apparatus for transmitting frames accommodating client data over a transmission network, comprising a clock generation unit that generates a clock for timing processing period of signal processing, a deviation detection unit that detects clock deviation between the clock generated by the clock generation unit and the clock used for timing processing period of signal processing by other transmission apparatus that receives the client data from outside the transmission network and adds them to frames, and a timing generation unit that generates timing signal of processing period of signal processing corrected with the clock deviation.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: November 18, 2014
    Assignee: Fujitsu Limited
    Inventors: Junichi Sugiyama, Makoto Shimizu, Wataru Odashima, Shota Shinohara, Hiroyuki Homma
  • Patent number: 8824612
    Abstract: Apparatuses, circuits, and methods are disclosed for reducing or eliminating unintended operation resulting from metastability in data synchronization. In one such example apparatus, a sampling circuit is configured to provide four samples of a data input signal. A first and a second of the four samples are associated with a first edge of a latching signal, and a third and a fourth of the four samples are associated with a second edge of the latching signal. A masking circuit is configured to selectively mask a signal corresponding to one of the four samples responsive to the four samples not sharing a common logic level. The masking circuit is also configured to provide a decision signal responsive to selectively masking or not masking the signal.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: September 2, 2014
    Assignee: Micron Technology, Inc.
    Inventor: Yantao Ma
  • Patent number: 8804892
    Abstract: A clock and data recovery device receives a serial data stream and produces recovered clock and data signals. The clock and data recovery device operates over a range of frequencies and without use an external reference clock. A first loop supplies a first clock signal to a second loop. The second loop modifies the first clock signal to produce the recovered clock signal and uses the recover clock signal to produce the recovered data signal. The first loop changes the frequency of the first clock signal based on frequency comparison and data transition density metrics.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: August 12, 2014
    Assignee: Vitesse Semiconductor Corporation
    Inventor: Ian Kyles
  • Patent number: 8761131
    Abstract: There are disclosed a random access method for establishing an individual channel between a radio communication terminal device and a base station device in a short time and a radio communication terminal device executing the random access method. In this device, in step ST320, a RACH sub-channel allocation unit (211) allocates a transmission packet inputted from a replication unit (202) to an arbitrary sub-carrier at the RACH arbitrary time slot at random. In step ST330, an allocation unit (210) judges whether an overlap is generated in the allocation result obtained by the RACH sub-channel allocation unit (211). When the allocation unit (210) judges that an overlap is generated in the allocation result, the allocation unit (210) causes one of the RACH sub-channel allocation units (211) which has caused the overlap to again perform allocation of step ST320. On the other hand, when judgment is made that no overlap is generated in the allocation result, step ST340 is executed.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: June 24, 2014
    Assignee: Optis Wireless Technology, LLC
    Inventors: Jun Cheng, Akihiko Nishio, Kenichi Miyoshi
  • Patent number: 8744016
    Abstract: A receiving apparatus includes a symbol timing detection unit, a Fourier transform unit, a first symbol timing correction unit, and an interpolation synthesis unit. The symbol timing detection unit is configured to detect a Fourier transform start position from a received transmitting signal of a symbol unit, the Fourier transform unit is configured to perform a Fourier transform using the detected Fourier transform start position. The first symbol timing correction unit is configured to calculate and correct an amount of change between the Fourier transform start position of a reference symbol and the detected Fourier transform start position, and the interpolation synthesis unit is configured to perform an interpolation synthesis of a plurality of delay profiles corresponding to a plurality of symbols including the reference symbol and a symbol in which the amount of change is corrected.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: June 3, 2014
    Assignees: Fujitsu Limited, Fujitsu Semiconductor Limited
    Inventors: Hiroaki Takagi, Naoto Adachi, Masataka Umeda
  • Patent number: 8731590
    Abstract: There are provided measures for resource allocation control. Such measures may exemplarily include allocating resources based on a resource allocation assignment including at least an assignment of a resource allocation amount of granted resources for transmission to logical channels, for which data is available for transmission, according to a priority and a prioritized bit rate of each logical channel, and calculating a metric indicative of a result of the resource allocation in terms of at least one of requirements of the prioritized bit rates of the logical channels and the available data of the logical channels.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: May 20, 2014
    Assignee: Broadcom Corporation
    Inventors: Sami-Jukka Hakola, Timo Koskela, Samuli Turtinen
  • Patent number: 8712368
    Abstract: The present disclosure provides a system and method for providing radio communication at a scene, such as a fire or security scene, in an LMR system. The scene may include responder radios located within a building structure and a commander radio stationed outside, wherein the commander radio is in communication with the responder radios. Users operating the commander radio and responder radios cooperate by performing different, yet related, tasks at the scene. Therefore, the commander radio may be assigned a first set of features for communicating with responder radios, and responder radios may be assigned a second set of features for communicating with the commander radio. Some features of the system may include: locking one or more radio keys or radio knob settings, transmitting or receiving evacuation alerts, automatic switching between analog and digital communication, providing audible RSSI, indicating communication status of the radio, and providing out of range notification.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: April 29, 2014
    Assignee: E.F. Johnson Company
    Inventors: Brandon Wilson Moser, John Marvin Suzuki
  • Patent number: 8706840
    Abstract: The disclosure recites a device, system and method for provisioning resources from a server in a network to a mobile electronic device. The method comprises the steps of: downloading access information from the server for the resource; presenting the resource for selection on a graphical user interface (GUI) rendered on a display; sending a request to the server to download the resource from the communications network; and after receiving the resource from the communications network, integrating the resource into the application.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: April 22, 2014
    Assignee: Blackberry Limited
    Inventors: Michael Knowles, Robert Edwards, Andrew Bocking, Tatiana Kalougina
  • Patent number: 8687738
    Abstract: A clock data recovery circuit includes a phase detector circuit, a majority voter circuit, and a phase shift circuit. The phase detector circuit is operable to compare a phase of a periodic signal to a phase of a data signal to generate a phase error signal. The majority voter circuit includes a shift register circuit. The shift register circuit is operable to generate an output signal based on the phase error signal. The majority voter circuit is operable to generate a majority vote of the phase error signal based on the output signal of the shift register circuit. The phase shift circuit is operable to set the phase of the periodic signal based on the majority vote generated by the majority voter circuit.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: April 1, 2014
    Assignee: Altera Corporation
    Inventors: Swee Wah Lee, Teng Chow Ooi, Chuan Khye Chai
  • Patent number: 8682317
    Abstract: A communication network (100) includes a plurality of communication devices (102, 104) communicating over multiple systems or channels and also communicating over a short range link, such as a personal area Network (PAN) link (106). The plurality of communication devices (102, 104) utilize pre-stored scan lists (156, 166) and cooperative scanning (600). The cooperative scanning involves partitioning the scan lists (156, 166) among the plurality of devices via the short range link to minimize battery consumption or enhance scan performance.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: March 25, 2014
    Assignee: Motorola Solutions, Inc.
    Inventor: Ellis A. Pinder
  • Patent number: 8681842
    Abstract: Systems and methods for measuring transmitter and/or receiver I/Q impairments are disclosed, including iterative methods for measuring transmitter I/Q impairments using shared local oscillators, iterative methods for measuring transmitter I/Q impairments using intentionally-offset local oscillators, and methods for measuring receiver I/Q impairments. Also disclosed are methods for computing I/Q impairments from a sampled complex signal, methods for computing DC properties of a signal path between the transmitter and receiver, and methods for transforming I/Q impairments through a linear system.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: March 25, 2014
    Assignee: National Instruments Corporation
    Inventor: Stephen L. Dark
  • Patent number: 8676184
    Abstract: A method for remotely controlling a device by a fixed transceiver station in a radio cell of a cellular mobile telecommunications network, the cellular mobile telecommunications network being at least one of a Long Term Evolution (LTE) network or a Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (UTRAN), includes: transmitting to the device on a control channel, by the fixed transceiver station, control information specific to the radio cell; wherein the control channel is a channel or a portion of a channel used to broadcast location information; wherein the control information comprises an identification part for specifying the device; and wherein the device is not required to have a registration with the network.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: March 18, 2014
    Assignees: Deutsche Telekom AG, Deutsche Telekom (UK) Limited
    Inventors: Jeremy Bray, Harald Schmitt
  • Patent number: 8670392
    Abstract: A method and apparatus for initiating communications on a shared channel in a mobile communication system are provided. A user equipment transmits an uplink signal for requesting communications on the shared channel to a Node B, and waits for a delay duration without monitoring a downlink after transmitting the uplink signal. When the delay duration has elapsed, the user equipment monitors the downlink during a valid period and determines whether a downlink signal responding to the uplink signal is received in a transmission time interval within the valid period. When the downlink signal is received in the valid period, the user equipment transmits and receives data on the shared channel.
    Type: Grant
    Filed: November 22, 2006
    Date of Patent: March 11, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Soeng-Hun Kim, Gert Jan Van Lieshout, Sung-Ho Choi
  • Patent number: 8638895
    Abstract: In one embodiment, receiving an Ethernet signal over a channel, the Ethernet signal comprising a preamble frame, an idle frame, and a data frame, the preamble frame comprising one or more preamble codes; synchronizing to the Ethernet signal based on the preamble frame; replicating the one or more preamble codes; and training a decision feedback equalizer (DFE) based on the one or more replicated codes, the training enabling the DFE to use decision values at the DFE output to track channel variations.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: January 28, 2014
    Assignee: Broadcom Corporation
    Inventors: Ahmad Chini, Mehmet Tazebay, Scott Powell
  • Patent number: 8638884
    Abstract: The data processing unit (15) for a receiver of signals carrying information (1) includes a clock and data recovery circuit (16) on the basis of a data signal (DOUT), and a processor circuit (17) connected to the clock and data recovery circuit. The clock and data recovery circuit is clocked by a local clock signal (CLK) and includes a numerical phase lock loop, in which a numerically controlled oscillator (25) is arranged. This numerically controlled oscillator generates an in-phase pulse signal (IP) and a quadrature pulse signal (QP) at output. The frequency and phase of the pulse signals IP and QP are adapted on the basis of the received data signal (DOUT). The processor circuit is arranged to calculate over time the mean and variance of the numerical input signal (NCOIN) of the numerically controlled oscillator (25), so as to determine the coherence of the data signal if the calculated mean and variance are below a predefined coherence threshold.
    Type: Grant
    Filed: October 19, 2011
    Date of Patent: January 28, 2014
    Assignee: The Swatch Group Research and Development Ltd
    Inventor: Arnaud Casagrande
  • Patent number: 8639261
    Abstract: A wireless device includes at least one antenna, an RF interface, and processing circuitry coupled to the RF interface and indirectly to the at least one antenna. The wireless device identifies other wireless devices that service based upon transmission characteristics of wireless signals received from other wireless devices and/or relative positions of the other wireless devices with respect to itself. In a first operational period, the wireless device determines transmission characteristics of the other wireless devices. Then, during a second operational period, without further interaction with the other wireless devices, the wireless device determines communication link characteristics based simply upon transmission characteristics of the other wireless devices.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: January 28, 2014
    Assignee: Broadcom Corporation
    Inventors: Mark Gonikberg, Marcellus Forbes
  • Patent number: 8634506
    Abstract: Generate a series of digital data according to a pair of differential signals received from a low speed universal serial bus. Calibrate coarsely a frequency of an oscillator according to a width of an end-of-packet of the series of digital data. And calibrate finely the frequency of the oscillator according to a width of a SYNC pattern of the series of digital data.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: January 21, 2014
    Assignee: Weltrend Semiconductor Inc.
    Inventors: Fu-Yuan Hsiao, Ke-Ning Pan
  • Patent number: 8634510
    Abstract: A bang-bang frequency detector with no data pattern dependency is provided. In examples, the detector recovers a clock from received data, such as data having a non-return to zero (NRZ) format. A first bang-bang phase detector (BBPD) provides first phase information about a phase difference between a sample clock and the clock embedded in the received data. A second BBPD provides second phase information about a second phase difference between the clock embedded in the received data and a delayed version of the sample clock. A frequency difference between the sample clock and the clock embedded in the received data is determined based on the first and second phase differences. The frequency difference can be used to adjust the frequency of the sample clock. A lock detector can be coupled to a BBPD output to determine if the sample clock is locked to the clock embedded in the received data.
    Type: Grant
    Filed: January 12, 2011
    Date of Patent: January 21, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Xiaohua Kong, Vannam Dang, Tirdad Sowlati
  • Patent number: 8630227
    Abstract: The invention relates to a method for retransmitting data packets in a network. Further, the invention relates to an adapted system for performing the method. To improve the robustness in the transmission of an acknowledgment message by a mobile terminal to the network, while minimizing a signaling overhead, the invention provides mechanisms that optimize the retransmission of data packets and manage acknowledgement messages. The mechanisms disclosed are particular applicable to heterogeneous radio access networks.
    Type: Grant
    Filed: May 2, 2007
    Date of Patent: January 14, 2014
    Assignee: Panasonic Corporation
    Inventor: Konstantinos Dimou
  • Patent number: 8620337
    Abstract: Systems, methods, and computer-readable media are for selectively establishing radio access bearers configured to support simultaneous voice and data communications in a mobile telecommunications network. An exemplary method includes receiving a request to initiate a data session at a mobile device that is currently engaged in a voice session and, in response to receiving the request, determining if the mobile device is capable of supporting a radio access bearer configured to simultaneously support the data session and the voice session. The method further includes allowing or denying establishment of the radio access bearer based upon the determination.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: December 31, 2013
    Assignee: AT&T Mobility II LLC
    Inventors: Sheldon Meredith, Mark Austin, Mario Kosseifi
  • Patent number: 8620338
    Abstract: A radio terminal, radio base station, channel signal forming method and channel signal receiving method wherein when an upstream unit band and a plurality of downstream unit bands associated therewith are used to perform communications, the quality of downstream assignment control information can be prevented from being degraded. In a base station (100), the PDCCH signals including upstream assignment control information are limited to ones that are placed in some of the downstream unit bands. This can reduce the probability of performance of zero padding to downstream assignment control information having greater importance. Also in the base station (100), the PDCCH signals of the downstream unit bands other than the basic unit band include only downstream resource assignment information.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: December 31, 2013
    Assignee: Panasonic Corporation
    Inventors: Seigo Nakao, Daichi Imamura, Takahisa Aoyama
  • Patent number: 8620369
    Abstract: There is provided a channel access method in which a channel access method in a wireless network in which a channel access opportunity is provided to high priority traffic for each super-frame. The channel access method includes: setting parameter values required for channel access; setting a channel access time to be equal to a size of a contention access period (CAP); and accessing a channel to be used by resetting the channel access time to be equal to the size of the CAP when traffic to be transmitted is traffic having a preset high priority in a case in which the channel is not in an idle state.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: December 31, 2013
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Sung Ho Hwang, Ki Hong Kim, Jun Ki Min
  • Patent number: 8619658
    Abstract: In a wireless communication system comprising at least one access point (AP) and a plurality of stations (STAs), a method for transmission management of the wireless medium comprises the AP configuring a Multiple Receiver Aggregate Multi-Poll/Power Save Aggregation Descriptor (MMP/PSAD) frame with scheduled Uplink Transmission Time (ULT) information for the plurality of STAs. The AP then transmits the MMP/PSAD frame to the plurality of STAs. Upon successfully receiving and decoding the MMP/PSAD frame, STAs transmit during their scheduled ULT.
    Type: Grant
    Filed: September 19, 2006
    Date of Patent: December 31, 2013
    Assignee: InterDigital Technology Corporation
    Inventors: Mohammed Sammour, Sudheer A. Grandhi, Robert Lind Olesen
  • Patent number: 8615264
    Abstract: A method and an apparatus for allocating a cognitive radio network spectrum based on aggregation. The method includes: obtaining information about unoccupied spectrum fragments and unit capacity information of a secondary users on different spectrum fragments, and constructing a solution matrix; calculating a reference index corresponding to the solution matrix, determining a resource allocation vector according to the reference index, and allocating resources after selecting a resource allocation element from the resource allocation vector; and removing a resource allocation element that is used in the resource allocation from the solution matrix, and then constructing a new solution matrix to continue allocating resources until unoccupied spectrum resources corresponding to the information about unoccupied spectrum fragments are allocated completely.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: December 24, 2013
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jiao Wang, Gong Zhang
  • Patent number: 8611451
    Abstract: A method of operation in a receive circuit is disclosed. The method comprises entering an initialization mode followed by receiving training data from a lossy signaling path. The training data originates from a transmit circuit. The received training data is sampled and minimax transmit equalizer coefficients are generated based on the sampled data. The minimax transmit equalizer coefficients are then transmitted back to the transmit circuit. The initialization mode is exited and an operating mode initiated, where transmit data precoded by the minimax transmit equalizer coefficients is received.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: December 17, 2013
    Assignee: Aquantia Corporation
    Inventor: Hossein Sedarat
  • Patent number: 8605847
    Abstract: In described embodiments, a transceiver includes a clock and data recovery module (CDR) with an eye monitor and a cycle slip monitor. The cycle slip detector monitors a CDR lock condition, which might be through detection of slips in sampling and/or transition timing detection. The cycle slip detector provides a check point to sense system divergence, allowing for a mechanism to recover CDR lock. In addition, when the CDR is out-of-lock, the various parameters that are adaptively set (e.g., equalizer parameters) might be invalid during system divergence. Consequently, these parameters might be declared invalid by the system and not used.
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: December 10, 2013
    Assignee: LSI Corporation
    Inventors: Mohammad Mobin, Mark Trafford, Ye Liu, Vladimir Sindalovsky, Amaresh Malipatil
  • Patent number: 8594168
    Abstract: As a digitized representation of an intermediate frequency television signal moves through a demodulator it undergoes a number of processes, including conversion from an analog signal to a digitized data, digital signal processing of the digitized data, and the like. The rate at which the digitized data moves through the digital signal processor of the demodulator for processing is referred to as the data rate of the DSP. The demodulator can vary the data rate based on a selected television channel, thereby reducing the level of interference at the demodulator resulting from noise.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: November 26, 2013
    Inventors: Gary Cheng, Vyacheslav Shyshkin, Steve Selby
  • Patent number: 8588356
    Abstract: A method for receiving a signal having a succession of symbols, transmitted by a digital modulation, each symbol transmitted having a phase and an amplitude belonging to a set of values in finite number, the method includes evaluating a phase error (PHE) on a received symbol (S), resulting from a signal transmission noise, correcting the phase of the received symbol according to the phase error evaluated, demodulating the symbol corrected in phase, and modeling the transmission noise by a Gaussian component not correlated with the signal received and defined by a power and an interference component defined by an amplitude and which phase is substantially uniformly distributed, the phase error of the received symbol evaluated on the basis of the power of Gaussian component and the amplitude of the interference component.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: November 19, 2013
    Assignee: STMicroelectronics (Grenoble 2) SAS
    Inventor: Jacques Meyer
  • Patent number: 8588834
    Abstract: A method of performing a random access procedure in multiple component carrier system is provided. The method includes transmitting a random access preamble on an uplink component carrier, receiving a response to the random access preamble, transmitting an identity for the MS based on the response and monitoring a downlink component carrier linked to the uplink component carrier among a plurality of aggregated downlink component carriers. It is clear which downlink component carrier the MS needs to monitor for contention resolution.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: November 19, 2013
    Assignee: LG Electronics Inc.
    Inventors: Young Dae Lee, Sung Jun Park, Seung June Yi, Sung Duck Chun
  • Patent number: 8576871
    Abstract: A collision avoidance method for subscribers to fight for a right to speak of a multi-party conversation in a digital intercommunication system includes: sending a frame of instructions from the transmitting subscriber to the receiving subscribers for declaring a beginning of a fight for phase; in a subset of frame moments during the fight-for phase, sending maintenance information by the transmitting subscriber to the receiving subscribers; in another subset of the frame moments during the fight-for phase, broadcasting a request for the right to speak by the receiving subscribers intending to obtain the right to speak in turn, the fight-for phase not closing until at least one of the receiving subscribers sends out a request message; hearing the request message, ceasing fighting for the right to speak by the other receiving subscribers; and the receiving subscriber obtaining the right to speak as a new transmitting subscriber and beginning to speak.
    Type: Grant
    Filed: January 8, 2008
    Date of Patent: November 5, 2013
    Assignee: Spreadtrum Communications (Shanghai) Co., Ltd.
    Inventors: Hongchao Deng, Jingdong Lin
  • Patent number: 8571150
    Abstract: According to one embodiment, a frequency offset compensation apparatus includes a first estimation unit, a second estimation unit, a setting unit, a synthesis unit and a compensation unit. The first estimation unit estimates a first rotation. The second estimation unit estimates a second rotation. The setting unit sets a weighting factor for the second rotation to a first value if a received power is less than a threshold value, and sets the weighting factor for the rotation to a second value being smaller than the first value if the received power is not less than the threshold value. The synthesis unit calculates a compensation value. The compensation unit compensates for a frequency offset.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: October 29, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Seiichiro Horikawa, Koichiro Ban
  • Patent number: RE44861
    Abstract: Provided is a method and system for requesting and granting a media transmission right of a PoC user. The method includes a PoC client transmitting an MBCP Request message to a PoC server, the PoC server receiving the MBCP Request message, determining whether a current state corresponds to a media transmission denial condition, and if it is determined that the current state corresponds to a media transmission denial condition, transmitting an MBCP Deny message containing at least one of time information of a media transmission timer and time information of a retry-after timer to the PoC client, and the PoC client receiving the MBCP Deny message, activating the media transmission timer and the retry-after timer using the respective time information, and re-transmitting the MBCP Request message to the PoC server if one of the media transmission timer and the retry-after timer, the retry-after timer having a longer time value, expires.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: April 22, 2014
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Sung-Jin Park, Sang-Kyung Sung, Ji-Hye Lee, Wuk Kim