Patents Examined by Thai Hoang
  • Patent number: 8848644
    Abstract: A wireless local area network (WLAN) gateway uses a LTE radio frame and TV white space spectrum for data communications in a wireless local area network. In the LTE downlink frame, a predefined subset of the pilot (reference) symbol positions are used to carry information to data sinks in the WLAN.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: September 30, 2014
    Assignee: Wi-Lan, Inc.
    Inventors: Vajira Samarasooriya, Shiquan Wu
  • Patent number: 8837424
    Abstract: A method for processing a handover procedure in a mobile communication system is disclosed. After a type of handover is recognized based on information included in a handover command, a radio resource reconfiguration operation is selectively performed or a data transmission start point is adjusted, to thereby minimize an unnecessary operation occurring in the handover process and optimize a data transmission between a user equipment and a base station.
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: September 16, 2014
    Assignee: LG Electronics Inc.
    Inventors: Sung-Duck Chun, Seung-June Yi, Sung-Jun Park, Young-Dae Lee
  • Patent number: 8839065
    Abstract: In many low latency media applications it is important to transmit media data packets from a media source to one or more media destinations as promptly as possible, while also ensuring that all media data packets that may be lost due to transmission errors are retransmitted and received correctly at the media destination. This invention described a system to do this with a system and methods for anticipating media data packet loss and making preemptive media data packet retransmission requests by dynamically computing a metric and decision logic for retransmission request that includes a need based factor from the media consuming application.
    Type: Grant
    Filed: July 28, 2012
    Date of Patent: September 16, 2014
    Assignee: Blackfire Research Corporation
    Inventor: Ravi U. Rajapakse
  • Patent number: 8837492
    Abstract: An apparatus comprising an ingress controller configured to receive a data frame comprising a high priority data and a low priority data, and an ingress buffer coupled to the ingress controller and configured to buffer the low priority data, wherein the high priority data is not buffered. Also disclosed is a network component, comprising an ingress controller configured to receive a data stream comprising high priority data and low priority data, and an ingress buffer coupled to the ingress controller and configured to receive, buffer, and send the low priority data, and further configured to receive a flow control indication, wherein the ingress buffer varies an amount of the low priority data sent from the ingress buffer in accordance with the flow control indication.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: September 16, 2014
    Assignee: Futurewei Technologies, Inc.
    Inventor: Serge Francois Fourcand
  • Patent number: 8817588
    Abstract: Methods, devices and computer program products are provided to improve uplink communications in a wireless communication system. Reference symbols in an uplink transmission radio subframe are time-frequency multiplexed with additional data symbols. The multiplexed data symbols are transmitted in an uplink transmission to another device within the wireless communication network along with non-multiplexed data symbols. The multiplexing operations enable the transmission of additional data symbols without increasing the overhead associated with the transmission of symbols in the radio subframe.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: August 26, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Xiliang Luo, Peter Gaal, Juan Montojo
  • Patent number: 8797954
    Abstract: Methods and devices are disclosed for efficient signaling of discontinuous transmission in a wireless communication system. In various aspects of the disclosure, a user equipment device monitors transmissions on a plurality of physical downlink control channels (PDCCHs) and, in response to said transmissions, generates an acknowledge/negative acknowledge (ACK/NACK) signal comprising a plurality of bits, wherein the plurality of bits includes a discontinuous transmission (DTX) indicator bit. In some embodiments, the indicator bit corresponds to an even or odd number of PDCCHs successfully decoded. In other embodiments, the indicator bit corresponds to an odd or even number of component carriers comprising “TRUE” NACKs.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: August 5, 2014
    Assignee: BlackBerry Limited
    Inventors: Michael Eoin Buckley, Youn Hyoung Heo, Andrew Mark Earnshaw, Amin Mobasher, Masoud Ebrahimi Tazeh Mahalleh
  • Patent number: 8792876
    Abstract: An apparatus is provided in one example embodiment and includes a network element coupled to a base station and a network and operating in a WiMAX communications environment. The base station is coupled to an endpoint, the network element defining authentication, authorization, and accounting (AAA) attributes for the endpoint at an interface between the network element and the base station. In more specific embodiments, the network element defines one or more quality of service attributes for the endpoint and the network element defines a layer two virtual local area network (VLAN) priority/class of service (Cos). In still other embodiments, the network element defines a layer three Internet Protocol differentiated service code point (IP-DSCP). Traffic separation can be specified on a per-subscriber basis or a per service-flow basis and, further, the traffic separation can be executed through a virtual router element.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: July 29, 2014
    Assignee: Cisco Technology, Inc.
    Inventor: Peter P. Zhu
  • Patent number: 8787246
    Abstract: A wireless network system may include a source node having a first source wireless interface and a second source wireless interface, wherein the source node initiates a data transmission via the first source wireless interface. The wireless network system may also include a repeater node having a first and second repeater wireless interfaces, wherein the repeater node is configured to receive the data transmission on the first or second repeater wireless interface and to repeat the data transmission on the other of the first or second repeater wireless interface. The wireless network system also includes a destination node having first and second destination wireless interfaces, wherein the destination node is configured to receive the data transmission on the first or second destination wireless interface. A wireless network system may also include a satellite-based, wireless network system, including an earth station server, a satellite client, and a terrestrial client.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: July 22, 2014
    Assignee: IPCO, LLC
    Inventor: Edwin B. Brownrigg
  • Patent number: 8774212
    Abstract: A system and method for managing network traffic is disclosed. A system that incorporates teachings of the present disclosure may include, for example, a data switch having a controller element to transmit telemetry data representative of bandwidth usage by one or more users of the data switch. At least one higher bandwidth user can have an increased polling frequency based at least in part on a differential in upstream and downstream data transfer rates for the one or more users. Additional embodiments are disclosed.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: July 8, 2014
    Assignee: AT&T Intellectual Property I, LP
    Inventors: Stuart L. Blackburn, Raghvendra Savoor, John Van Slyke, Xidong Wu, Baofeng Jiang, Kaiyan Chen, Sun-Uk Park
  • Patent number: 8774194
    Abstract: A method is described including extracting protocol information from a received packet within a framer, comparing the protocol information in a first pass to predetermined values to produce a first result, and tagging the packet based on the set of results.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: July 8, 2014
    Assignee: Ruction Capital Limited Liability Company
    Inventors: Velamur Krishnamachari Vasudevan, Dinesh Annayya
  • Patent number: 8761070
    Abstract: Communication systems for broadcasting data often include the ability to combine and transmit more than one type or format of data. A method includes receiving a packet of data, determining a location for a parity byte, the location based on a characteristic of the packet of data, decoding the data to determine a value for the parity byte, and outputting a coded packet of data. An apparatus includes a first signal processor for receiving a first data signal and a second data signal, combining the signals, and creating a signal identifying the signals. The apparatus also includes a second signal processor for encoding the combined signal using a decoding algorithm to generate Reed-Solomon parity bytes in locations within the combined signal based on the identifying signal.
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: June 24, 2014
    Assignee: Thomson Licensing
    Inventor: Ivonete Markman
  • Patent number: 8761706
    Abstract: Passive RF devices are disclosed that communicate using a wireless network protocol. The device includes an antenna operable to receive a radio frequency (RF) signal from a RF source that transmits the RF signal based on a wireless network protocol. The device further includes circuitry operable to derive power from the RF signal. With the power derived from the RF signal, the circuitry is further operable to read data from a memory, to encode the data based on the wireless network protocol, and to modulate the RF signal to include the encoded data. The antenna is further operable to transmit the modulated RF signal based on the wireless network protocol for reception by the RF source or another passive RF device.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: June 24, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Sergey Chemishkian, Jonathan J. Hull
  • Patent number: 8755807
    Abstract: Techniques for supporting Coordinated MultiPoint (CoMP) transmission are described. For CoMP transmission, multiple cells may simultaneously send one or more data streams to one or more UEs on the same time-frequency resources based on short-term channel feedback from at least one UE to at least two cells. In an aspect, a semi-static configuration may be used by a set of cells for CoMP transmission to a UE. The semi-static configuration may indicate resource elements available to the set of cells to send CoMP transmission to the UE. The available resource elements may be determined based on a maximum number of TDM control symbols for all cells in the set and resource elements used for cell-specific reference signals by the cells in the set. A cell in the set may send data on the available resource elements to the UE for the CoMP transmission.
    Type: Grant
    Filed: January 6, 2010
    Date of Patent: June 17, 2014
    Assignee: Qualcomm Incorporated
    Inventors: Alexei Y. Gorokhov, Ravi Palanki
  • Patent number: 8750788
    Abstract: The present invention relates to a data transmission/receiving method and apparatus for overcoming interference between multiple data streams, by relaying only part of multiple data streams that are received from a source node during collaborative data transmission employing relay nodes. The multiple data stream transmission method of the present invention comprises: receiving a plurality of data streams from a source node; decoding the plurality of data streams received; selecting a portion of the successful decoded data streams; encoding the selected portion of the data streams; and sending the encoded data stream portion to a destination node.
    Type: Grant
    Filed: April 2, 2010
    Date of Patent: June 10, 2014
    Assignees: LG Electronics Inc., Sungkyunkwan University Foundation For Corporate
    Inventors: Dong-In Kim, Wan Choi, Jong-Yeoul Ryu, Han-Byul Seo, Byoung-Hoon Kim
  • Patent number: 8743915
    Abstract: A method of transmitting a packet in an optical transport network includes: generating a GFP frame by GFP encapsulating a packet client signal; mapping the GFP frame to a dynamic data unit; multiplexing to a high order data unit in an order higher than that of the dynamic data unit using at least one dynamic data unit; generating a high order transport unit using the multiplexed high order data unit; and transmitting the high order transport unit.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: June 3, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jong-Yoon Shin, Jongho Kim
  • Patent number: 8737374
    Abstract: Systems and methods for packet acknowledgement are disclosed. In one embodiment, codewords are redundantly used in order to decrease the total number of bits required for feeding back acknowledgment information or in order to increase the Euclidean space between codewords.
    Type: Grant
    Filed: January 5, 2010
    Date of Patent: May 27, 2014
    Assignee: QUALCOMM Incorporated
    Inventor: Sharad D. Sambhwani
  • Patent number: 8731493
    Abstract: A system for performing wireless local area network testing of wireless devices may include a wireless local area network tester and a device under test. The tester and device under test may communicate over a wireless link. To ensure that the tester accurately analyzes test data, a data rate table is used that specifies fixed data transmission rates to be used by the device under test under both high-quality link conditions and low-quality link conditions. This forces the device under test to transmit control packets at the same high data rate during packet loopback testing, regardless of link quality. When the captured control packets are analyzed at the tester, both low-link-quality data and high-link-quality data may be analyzed using a common test template, ensuring accurate results.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: May 20, 2014
    Assignee: Apple Inc.
    Inventors: Anh Luong, Justin Gregg
  • Patent number: 8724662
    Abstract: A wireless protocol for a communication system is set forth herein which may be utilized for communication between a transmitter and a receiver over any type of communication channel. The wireless communication protocol provides for the reduction of receiver active or on time which in turn lowers power consumption. The wireless communication protocol enables the complexity and receiver size to be reduced. The methodology employed in the protocol utilizes a unique message frame in conjunction with repeated transmission and periodic receiver searching.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: May 13, 2014
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Adam Toner, Scott Robert Humphreys, Randall Braxton Pugh, Daniel B. Otts, William Chester Neeley
  • Patent number: 8699487
    Abstract: Systems and methodologies are described that facilitate signaling and/or utilizing uplink delay budget related feedback in a wireless communication environment. A lowest delay budget associated with a most urgent Radio Link Control (RLC) service data unit (SDU) retained in a buffer of an access terminal can be determined. Further, a portion of a Medium Access Control (MAC) header (e.g., two reserved bits, . . . ) can be configured to carry a code related to a delay threshold corresponding to the lowest delay budget. Moreover, the MAC header can be transferred to a base station. The base station can detect the code carried by the portion of the MAC header, and a delay threshold can be determined as a function of the detected code (e.g., utilizing a radio bearer specific mapping). According to an example, the access terminal can be scheduled for uplink transmission as a function of the delay threshold.
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: April 15, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Aleksandar Damnjanovic, Sai Yiu Duncan Ho
  • Patent number: 8699412
    Abstract: Systems and methodologies are described herein that facilitate cell barring based on erroneous messages received within a wireless communication system. As described herein, in the event that a device fails to receive and/or decode respective messages transmitted from a network cell over a common communication channel, the device can implement one or more error handling procedures as described herein to reselect away from the network cell and/or a frequency associated with the network cell (e.g., as if the network cell was explicitly barred). Cell barring can be triggered as described herein based on a count of erroneous messages (e.g., consecutive messages, messages received within a predetermined time window, etc.), elapsed time between erroneous messages, or the like. Further, cell barring can be performed as described herein based on failure to acquire pre-scheduled system information, common system information determined to have invalid abstract syntax, or the like.
    Type: Grant
    Filed: January 4, 2010
    Date of Patent: April 15, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Daniel Amerga, Nathan Edward Tenny