Patents Examined by Richard K. Chang
  • Patent number: 8325657
    Abstract: Controlling interference in a telecommunications network, in which data are transmitted between mobile devices and base stations in resource blocks, includes, for each of the base stations: allocating resource blocks to one of multiple resource groups, the corresponding resource blocks of each base station being in the same resource group; allocating resource groups to one of multiple transmission power values, the corresponding resource groups of each base station having different transmission power values; and allocating respective ones of the mobile devices to one of the resource groups depending upon a UE characteristic. Interference at a resource block of a resource group of a base station caused by a neighboring base station is detected. In response thereto, an indication of the resource group subject to interference is sent to the neighboring base station and then the transmission power value of said resource group of the neighboring base station is selectively reduced.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: December 4, 2012
    Assignee: Vodaone Intellectual Property Licensing Limited
    Inventors: David Fox, Prakash Bhat
  • Patent number: 8320233
    Abstract: According to one embodiment of the invention, an integrated circuit comprises an encoding module, a modulation module and a spectral shaped module. The encoding module includes an interleaver that adapted to operate in a plurality of modes including a first mode, a second mod and a third mode. The interleaver performs repetitive encoding when placed in the second mode and even greater repetitive encoding when placed in the third mode.
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: November 27, 2012
    Assignee: Maxim Integrated Products, Inc.
    Inventors: Kaveh Razazian, Maher Umari, Amir Hosein Kamalizad, Victor V. Loginov, Michael V. Navid
  • Patent number: 8315223
    Abstract: A mobile station that receives multibeam data in precoding Multiple Input Multiple Output (MIMO) from a base station, using a plurality of antennas, includes: a code book that includes contents identical to contents of a code book installed in the base station and that includes information of beam selection for precoding; and a control unit that determines a weight for carrying out optimum beam selection for precoding at time of searching information in the code book, based on a state of a beam in each resource block of received data that is divided into a plurality of resource blocks in a radio communication band, to transmit the weight as feedback information to the base station.
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: November 20, 2012
    Assignee: Fujitsu Limited
    Inventor: Masafumi Tsutsui
  • Patent number: 8305962
    Abstract: A heterogeneous wireless communication network includes a home access network with a home network characteristic and a home network policy, and a visiting access network with a visiting network characteristic and a visiting network policy. A packet data node gateway is adapted to communicate with the home access network and the visiting access network over a first communication path. An out-of-band communication path substantially separate from the first communication path is adapted to carry the visiting network policy from the visiting access network to the packet data node gateway. When the terminal is handed off from the home network to the visiting network, the packet data node gateway retrieves the visiting network policy, and the terminal accesses the visiting network over the first communication path using the visiting network policy.
    Type: Grant
    Filed: June 22, 2009
    Date of Patent: November 6, 2012
    Assignee: Nokia Siemens Networks GmbH & Co. KG
    Inventors: Naheed Vora, Kevin Tang, Yinghua Ye, Meghana Sahasrabudhe
  • Patent number: 8300564
    Abstract: A system and method for optimizing wireless vehicle to vehicle communications is configured to maximize the amount of data that can be transferred from one vehicle to another during a transient encounter by adaptively adjusting the message packet size and data modulation rate during an inter-vehicle communication session.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: October 30, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Donald K. Grimm, Fan Bai
  • Patent number: 8279816
    Abstract: A method in which a user equipment processes data in a wireless mobile communication system is provided. The method includes the steps of receiving a first data block from an upper layer, transferring a second data block including the first data block to a lower layer at a particular protocol layer, discarding the first and second data blocks present in the particular protocol layer if a certain period of time has passed, and transferring information associated with the discard of the second data block to the lower layer.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: October 2, 2012
    Assignee: LG Electronics Inc.
    Inventors: Sung Duck Chun, Young Dae Lee, Sung Jun Park, Seung June Yi
  • Patent number: 8264999
    Abstract: A method for realizing paging in a mobile switching center (MSC) pool includes the following steps. An MSC server selects a media gateway (MGW) from more than one MGW connected to a base station controller (BSC)/radio network controller (RNC), delivers a paging message of an international mobile station identity (IMSI) paging type to the selected MGW, and stores a corresponding relation between an IMSI carried in the paging message and the MSC server in the MGW which is connected to the BSC/RNC and does not receive the paging message. The MGW that does not receive the paging message receives a paging response message sent by the BSC/RNC, determines an MSC server corresponding to an IMSI carried in the paging response message by looking up the corresponding relation between the IMSI and the MSC server stored therein, and routes the received paging response message to the corresponding MSC server. Several other methods and devices for realizing paging are also provided.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: September 11, 2012
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Sihai Ye, Xiaochun Cui, Hualin Luo, Runsheng Han, Xinhua Yang
  • Patent number: 8254367
    Abstract: A method for uplink synchronization of a first transceiver and a second transceiver in a multi-user cellular communication system having communication resources divided into communication channels. The method includes the following steps. A first signature sequence is transmitted from the second transceiver to the first transceiver, where the signature sequence is selected from a first set of signature sequences. In the first transceiver, the received signal is correlated with at least one signature sequence from a second set of signature sequences to estimate the time of arrival of the signature sequence to synchronize transmission between the second transceiver and the first transceiver. In transmitting the first signature sequence from the second transceiver to the first transceiver, the first signature sequence constitutes at least part of a zero-correlation zone sequence.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: August 28, 2012
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Branislav Popovic, Oskar Mauritz
  • Patent number: 8248995
    Abstract: A frequency agile radio configured to determine an estimated coverage area of a primary transmitter is disclosed. The radio includes at least one position device configured to determine a position coordinate of the radio and generate a corresponding position signal. The radio also includes at least one frequency agile receiver configured to measure a power of a transmission at least one frequency and generate a corresponding signal. Additionally, the radio includes at least one controller in communication with the at least one position device and the at least one frequency agile receiver. The controller is configured to determine a plurality of position coordinates of the radio and a plurality of signal power datums. The controller is also configured to estimate the coverage area of the at least one primary transmitter, based on the determined plurality of position coordinates and the determined plurality of signal power datums.
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: August 21, 2012
    Assignee: George Mason Intellectual Properties, Inc.
    Inventors: Brian L. Mark, Ahmed Omar Nasif
  • Patent number: 8243668
    Abstract: A method for allocating a radio resource in a wireless communication system comprises defining a plurality of resource regions within a frame, a resource region comprising at least one orthogonal frequency division multiple access (OFDMA) symbol and at least one subchannel, configuring radio resource allocation information indicating which resource region selected from the plurality of resource regions is allocated to a UE, the radio resource allocation information comprising at least one resource region identifier (ID), a resource region ID indicating a resource region selected from the plurality of resource regions, and transmitting the radio resource allocation information to the UE.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: August 14, 2012
    Assignee: LG Electronics Inc.
    Inventors: Wook Bong Lee, Bin Chul Ihm, Ki Seon Ryu
  • Patent number: 8243689
    Abstract: Disclosed herein is a handover method and apparatus for providing mobile Internet Protocol Television (IPTV) service over wireless communication networks. The handover method includes checking whether the strength of a signal received from a first base station of a serving first wireless network falls within a predetermined first threshold range; if the strength of the signal falls within the range, checking whether the strength of a signal received from at least one base station of a second wireless network is higher than a second threshold value required for handover; estimating the velocity and direction of a Mobile Node (MN) using location information received from a satellite; predicting a handover target base station using the estimated velocity and estimated location information; and, if the predicted target base station is one of base stations having the second threshold value, performing handover to the target base station.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: August 14, 2012
    Assignee: Sungkyunkwan University Foundation for Corporate Collaboration
    Inventors: Hee Yong Youn, Kyung Tae Kim, Byung Jun Lee
  • Patent number: 8218492
    Abstract: An embodiment of the present invention provides an apparatus that may include a transceiver operable to communicate with a receiver in a wireless network and adapted to select an optimal mode for transmissions, wherein the receiver estimates the optimal mode and feeds it back to the transceiver which changes a transmitted mode accordingly and wherein the optimal mode is based on a predetermined metric based on a performance equation that puts a threshold to separate between a high correlated signal to low correlation signal.
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: July 10, 2012
    Assignee: Intel Corporation
    Inventors: Rotem Avivi, Yuval Lomnitz, Uri Perlmutter
  • Patent number: 8208439
    Abstract: A method includes operating a receiver connected with nr receive antennas to receive uplink signals from K users having nt transmit antennas each; and scheduling which users are to transmit in a same time-frequency-code slot. A particular user pairing configuration is denoted by ? within a set of all configurations ?, and scheduling includes expressing mutual information as an additive objective function and maximizing the additive objective function over a particular choice of ???.
    Type: Grant
    Filed: December 26, 2008
    Date of Patent: June 26, 2012
    Assignee: Nokia Corporation
    Inventors: Ari Tapani Hottinen, Emanuele Viterbo
  • Patent number: 8203988
    Abstract: Disclosed is a radio (wireless) communication system providing a radio communication service and the terminal, and more particularly, to the method for receiving a MBMS service effectively by considering of time information related to a MBMS service transmission scheme.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: June 19, 2012
    Assignee: LG Electronics Inc.
    Inventors: Sung-Duck Chun, Seung-June Yi, Sung-Jun Park, Young-Dae Lee
  • Patent number: 8199702
    Abstract: Baseband recovery in wireless networks, base transceiver stations, and wireless networking devices may be implemented to minimize the number of timing symbols while at the same time enabling wireless devices to use a relatively low per-symbol sampling rate, so that minimal processing is required to implement the timing recovery. In one embodiment, a relatively low number of samples is taken per expected symbol interval during the training sequence. A subset of the samples is selected and processed to determine error signals for each of the samples. The error signals are multiplied by the expected symbol and summed to form an error signal. The error signal is used to adjust the set of samples that will be used and processed in connection with subsequent symbols. The error signal is also used to interpolate between available samples to infinitesimally approach the point of maximum eye opening.
    Type: Grant
    Filed: December 26, 2008
    Date of Patent: June 12, 2012
    Assignee: Rockstar Bidco LP
    Inventor: Tim Kuechler
  • Patent number: 8175025
    Abstract: A wireless communication apparatus prepared in each of wireless terminals configuring a wireless network adapted to transmit and receive a data signal and terminal information to and from peripheral wireless terminals of a subject wireless terminal; to manage the terminal information received from the peripheral wireless terminals; to determine a relay network to which the subject terminal belongs on the basis of the terminal information of the peripheral wireless terminals when the subject terminal can be connected to at least one of the relay networks provided within the wireless network; to transmit terminal information including information indicating the relay network of the subject terminal to the peripheral wireless terminal; and to use the relay network of the subject terminal as a data signal transfer route to perform forward processing. Thus, the apparatus can prepare plural transfer routes to avoid wireless signal interference and collision and balance the power consumption among the terminals.
    Type: Grant
    Filed: December 26, 2008
    Date of Patent: May 8, 2012
    Assignee: Oki Electric Industry Co., Ltd.
    Inventor: Kentarou Yanagihara
  • Patent number: 8160012
    Abstract: A method of establishing a channel in a wireless communication system is disclosed. The method of establishing a dedicated channel of a user equipment in a wireless communication system includes, receiving channel configuration information which is required for establishing the dedicated channel from a network, transmitting a first status report to the network if at least one first condition is satisfied, and establishing the dedicated channel using the channel configuration information after transmitting the first status report. As a result, the wireless communication system can increase its scheduling efficiency using buffer status information of the UE.
    Type: Grant
    Filed: August 11, 2008
    Date of Patent: April 17, 2012
    Assignee: LG Electronics Inc.
    Inventors: Sung Duck Chun, Young Dae Lee, Sung Jun Park, Seung June Yi
  • Patent number: 8160037
    Abstract: A method and system is provided to reinforce wireless communication capabilities between multiple network nodes of an wireless network group. The method and system first detects a wireless transmission capability between a first network node and a second network node. When the wireless transmission capability is lower than a threshold value, one set of reinforcing coordinates will be derived by introducing the first geographic information and the second geographic information. Afterwards, move a third network node to a position with the set of reinforcing coordinates to establish an alternative wireless transmission route between the first network note and second network node. Therefore, when an original wireless transmission route between any two network nodes is abnormal, the alternative wireless transmission route will be available in time and reduce the risks of losing transmission signals.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: April 17, 2012
    Assignee: Getac Technology Corporation
    Inventors: Ta-Yung Lee, Chih-Wen Cheng, Cheng-Hsien Yang, Chia-Chuan Wu
  • Patent number: 8155094
    Abstract: A method for transmitting/receiving data with transfer obligation delegated in a Wireless Sensor Network (WSN) reduces the time and power spent by a transmitting apparatus to wait for acknowledgment that a data transfer was successful. The method for transmitting data from a transmitting end to a receiving end through a set transfer route by multiple data transmit/receive apparatuses provided in a Wireless Sensor Network (WSN), typically includes the steps of: performing temporary storage of data to be transmitted on receiving a request to transmit data; requesting a data transmit/receive apparatus, existing on a next route, to transmit data while transmitting data to a data transmit/receive apparatus which is set as a transfer route; and confirming the delivery of the data to the data transmit/receive apparatus set as the transfer route, and then deleting the temporarily stored data frame.
    Type: Grant
    Filed: July 25, 2008
    Date of Patent: April 10, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tae-Shik Shon, Wook Choi, Hyo-Hyun Choi
  • Patent number: 8149768
    Abstract: A data transmission method for a mobile communication system is disclosed. A data transmission method at a specific protocol layer of a reception end of a mobile communication system includes receiving at least one data block of a specific protocol layer from a transmission end, and transmitting reception status indication information to the transmission end according to a reception status of the data block of the specific protocol layer. As a result, data can be more quickly and effectively transmitted to a destination.
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: April 3, 2012
    Assignee: LG Electronics Inc.
    Inventors: Sung Duck Chun, Young Dae Lee, Sung Jun Park, Seung June Yi