Patents Examined by Wanda Z Russell
  • Patent number: 9356683
    Abstract: An apparatus and a method for scheduling and a power control of a relay system that is capable of stable operation an environment where sufficient isolation between antennas is not ensured. The apparatus includes a scheduler for allocating resources to a zone not experiencing inter-antenna interference in an initial resource allocation, classifying users based on vulnerability to the interference, and allocating resources to a zone experiencing the interference, and a power controller for setting the resources of the zone experiencing the interference to a lower power than the resources of the zone not experiencing the interference to minimize the inter-antenna interference.
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: May 31, 2016
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Tak-Ki Yu, Seung-Hee Han, Yung-Soo Kim, Sung-Yoon Jung
  • Patent number: 9351099
    Abstract: The present invention provides a scheduling method in a wireless personal area network (WPAN) system and a device therefor. Specifically, a method for allocating a guaranteed time slot (GTS) in a WPNA system comprises the steps of: receiving a GTS request command for requesting periodic GTS allocation from a device; and transmitting a beacon frame which includes periodic GTS allocation information to the device, wherein a GTS allocation interval is determined by GTS interval information included in the GTS request command, and an allocated periodic GTS expires if data or an acknowledgement (ACK) frame is not transmitted from the device within a section determined by the GTS allocation interval.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: May 24, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Jaewon Lim, Suhwook Kim, Bonghoe Kim
  • Patent number: 9345022
    Abstract: Embodiments of the present invention provide a method and a device for allocating a backhaul link resource. The method includes: selecting, by a first base station, at least one subframe in an uplink (UL) frequency band in a frequency division duplex (FDD) wireless communication system; and allocating the selected at least one subframe as a backhaul link resource between the first base station and a second base station. With the method, the device and the system for allocating a backhaul link resource according to the embodiments of the present invention, a subframe is selected in an unexhausted frequency band in existing bandwidth resources and allocated to a wireless backhaul link. Therefore, the existing bandwidth resources are released, resources are allocated to wireless backhaul links, and costs of the communication system are saved.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: May 17, 2016
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Lei Wan, Sha Ma, Yinghui Yu, Wei Bai
  • Patent number: 9332540
    Abstract: The present invention relates to a wireless communication system, and more particularly, to a method and device for transmitting and receiving a downlink control channel for controlling inter-cell interference in a wireless communication system. An embodiment of the present invention provides a method for transmitting a downlink control channel from a base station to a terminal, and the method may comprise: a step of determining whether a downlink subframe is of a first type or a second type; and a step in which if the downlink subframe is of the first type, the number of OFDM symbols for transmitting the downlink control channel is set to a preset value (N), and the downlink control channel is transmitted using N OFDM symbols.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: May 3, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Inkwon Seo, Hanbyul Seo, Kijun Kim
  • Patent number: 9331835
    Abstract: Radio frequency (RF) front-end circuitry and methods of operating the same are described. One apparatus includes multiple antennas and a RF front-end circuitry. The RF front-end circuitry includes: a selection switch coupled to a second antenna, a first RF transceiver coupled to a first antenna and selectively coupled to the second antenna via the selection switch; a second RF receiver coupled to the first antenna; and a third RF transceiver selectively coupled to the second antenna via the selection switch. The first antenna receives signals for the first RF transceiver and the second RF receiver. The selection switch selectively couples the second antenna to the first RF transceiver in a first mode of the RF front-end circuitry and selectively couples the second antenna to the third RF transceiver in a second mode of the RF front-end circuitry.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: May 3, 2016
    Assignee: Amazon Technologies, Inc.
    Inventors: Tzung-i Lee, Varadarajan Gopalakrishnan, Cheol Su Kim, In Chul Hyun
  • Patent number: 9325623
    Abstract: A system and method of automatically configuring a Service Instance Identifier (I-SID) in a Generalized Multiprotocol Label Switching (GMPLS) controlled network. The method begins by identifying a specific I-SID for a specific service in the GMPLS controlled network. Next, the identified I-SID is automatically configured within a Backbone Edge Bridge (BEB) with a Resource Reservation Protocol-Traffic Engineering (RSVP-TE) extension. The automatic configuration may be implemented by several different embodiments. In one embodiment, the I-SID may be carried in a SESSION_ATTRIBUTE object. In another embodiment, the I-SID may be mapped to a Short Call ID field in a Session object. Alternatively, the I-SID may be carried in an Endpoint ID Type-Length-Value (TLV). The I-SID may also be carried in a new TLV in a LSP_ATTRIBUTES or CALL_ATTRIBUTES object.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: April 26, 2016
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Attila Takács, András Kern
  • Patent number: 9319950
    Abstract: A method and apparatus for switching a band in a wireless local access network (WLAN) is provided. The method includes transmitting a multi-band switch request message to request switching from a first frequency band to a second frequency band, and receiving a multi-band switch response message in response to the multi-band switch request message. The multi-band switch request message includes a multi-band switch schedule to operate in the second frequency band. Wider coverage can be supported by using multi-band.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: April 19, 2016
    Assignee: LG ELECTRONICS INC.
    Inventor: Yong Ho Seok
  • Patent number: 9306785
    Abstract: The present invention relates to a method and apparatus for transmitting a frame in a wireless LAN system. An access point (AP) receives a single orthogonal frequency division multiplexing (OFDM) symbol from each of a plurality of stations (STA) and a single-tone request to send (sRTS) frame through a single subcarrier, selects STAs for performing uplink (UL) multiuser (MU)-multiple input multiple output (MIMO) transmission, and transmits to the plurality of STAs a single-tone clear to send (sCTS) frame allocated to the same subcarrier as a subcarrier to which the sRTS frames received from the selected STAs are allocated.
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: April 5, 2016
    Assignees: LG ELECTRONICS INC., KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Ill Soo Sohn, Han Bae Kong, Hae Wook Park, Inkyu Lee, Chang Ick Song
  • Patent number: 9295105
    Abstract: Wireless stations (and their associated operation) making up a static, multi-hop wireless network are simplified because topological modeling and routing/scheduling decisions are shifted from the stations to a controller external to the network. The controller may determine routing paths and schedules for each of the wireless stations in a network based on the topology of a given network along with other network characteristics. Thereafter, the so-determined paths and schedules are sent to the associated wireless stations. By simplifying the operation of a wireless station, the amount of energy required to be used by each station may be reduced thereby maximizing the lifetime of the network.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: March 22, 2016
    Assignee: Alcatel Lucent
    Inventors: Yigal Bejerano, Amit Kumar
  • Patent number: 9287924
    Abstract: A method, apparatus, receiver, computer program and storage medium for joint detection are disclosed. The joint detection method includes categorizing interference signals based on level of interference so as to obtain a strong interference signal, cancelling the strong interference signal from a received signal, and performing a joint detection by utilizing a matched filtering result of a remaining signal.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: March 15, 2016
    Assignee: ST-ERICSSON SA
    Inventors: Zhixun Tang, Xie Li, Liping Zhang, Daijun Zhang
  • Patent number: 9276717
    Abstract: The present disclosure enables dynamic switching to a frame format different from the UL-DL configuration set by an SIB, and in particular switching to a downlink communication subframe from an uplink communication subframe, while also enabling effective utilization of downlink communication subframes. A base station uses “UL/DL communication subframe switching information” included in a DCI sent by a downlink communication subframe to instruct a terminal whether or not to perform uplink communication to a DCI using one or more uplink-specific communication subframes, and also gives instructions whether to perform uplink communication or downlink communication on an uplink communication subframe switchable to a downlink communication subframe.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: March 1, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Toru Oizumi, Daichi Imamura
  • Patent number: 9277565
    Abstract: Methods for preventing coexistence interference between a Bluetooth Low Energy (BLE) radio and a collocated LTE radio are provided. In a first solution, the BLE radio adds padding bytes to BLE packets such that the total packet length falls in a specific range to prevent coexistence interference. In a second solution, the BLE radio limits the total BLE packet length to a predefined length to prevent coexistence interference. In a third solution, the data rate for transmitting the BLE packets is higher than a predefined rate to prevent coexistence interference. In a fourth solution, the BLE radio dynamically adjusts the time inter-frame-spacing (T_IFS) value to prevent coexistence interference with the collocated LTE radio.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: March 1, 2016
    Assignee: MEDIATEK INC.
    Inventors: Li-Chun Ko, Huanchun Ye, Shuo-Jen Hsu, I-Kang Fu
  • Patent number: 9271207
    Abstract: Examples disclosed herein provide systems, methods, and software for transitioning between wireless communication networks. In one example, a method of operating a wireless communication device to transition between wireless communication networks includes exchanging first wireless communication signals with a Long Term Evolution (LTE) network for an application in the wireless communication device. The method further includes transitioning from exchanging the first wireless communication signals with the LTE network, to exchanging second wireless communication signals with at least one non-LTE base station for the application in the wireless communication device, and identifying LTE network status data to estimate an LTE network data rate. Based at least on the LTE network data rate, the method provides identifying an eNodeB sector and frequency carrier.
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: February 23, 2016
    Assignee: Sprint Communications Company L.P.
    Inventors: Rajveen Narendran, Sreekar Marupaduga
  • Patent number: 9253723
    Abstract: A communication device for a remote switch has a control device designed to supply a preparatory signal for preparing a transmission process and a transmission signal for starting the transmission process. A memory device is designed to save one structural information and a parameter for different transmission protocols. A processing device is designed to supply data to be sent, read the structural information and the parameters from the memory device in response to the preparatory signal and, based on the data to be sent and the structural information, create a send packet, and output the send packet and the parameter in response to the transmission signal. A transmission device is designed to wirelessly emit a transmission signal representing the send packet with a transmission characteristic defined by the parameter.
    Type: Grant
    Filed: November 1, 2013
    Date of Patent: February 2, 2016
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Alexander Graf, Hans-Jürgen Hanft, Thomas Boethe
  • Patent number: 9247536
    Abstract: The present invention relates to a wireless communication system. More specifically, the present invention relates to a method for transmitting uplink control information and to a device therefor, and relates to a method comprising the steps of: selecting one uplink control channel resource corresponding to a plurality of HARQ-ACKs, from a plurality of uplink control channel resources; and transmitting a bit value corresponding to the plurality of HARQ-ACKs, by using the selected uplink control channel resource. The present invention also relates to a device for the method.
    Type: Grant
    Filed: April 21, 2015
    Date of Patent: January 26, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Suckchel Yang, Mingyu Kim, Seunghee Han
  • Patent number: 9232506
    Abstract: Embodiments of the present invention provide a communication method for a carrier aggregation system. The communication method includes receiving physical downlink share channel PDSCH information sent by a base station through a subframe n of a secondary cell. If a subframe n of a primary cell is a downlink subframe, an ACK/NACK of the sent PDSCH information is fed back on a subframe m or a subframe p of the primary cell.
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: January 5, 2016
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Bo Li, Lei Guan, Yongxia Lv
  • Patent number: 9232517
    Abstract: Disclosed are a method for scheduling bundling in a wireless access system and an apparatus for same. In particular, the method includes the steps of: transmitting bundled downlink control information (DCI), including a plurality of pieces of downlink control information, to a terminal through a single physical downlink control channel (PDCCH); and transmitting downlink data to the terminal through a plurality of physical downlink shared channels (PDSCH) scheduled by the bundled DCI.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: January 5, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Jinmin Kim, Seunghee Han, Hyukmin Son, Hyunwoo Lee, Hyeyoung Choi
  • Patent number: 9231835
    Abstract: The present invention relates generally to communication systems, and more specifically, but not exclusively to a method and apparatus for quality of service control for a user equipment in a communication system comprising a home network with respect to the user equipment and a visited network.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: January 5, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Haris Zisimopoulos, Erik Guttman
  • Patent number: 9226318
    Abstract: There is provided a method, comprising: receiving, by a target node of a wireless access network, a signal from a first source node; determining the angular sector in which the first source node is located with respect to the target node; responding to the signal by both transmitting a first message omni-directionally and transmitting a second message directionally towards the angular sector; and establishing a first resource reservation on a frequency channel at least partly on the basis of transmitting the first message and the second message, wherein the first resource reservation is for performing directional data transfer with the first source node.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: December 29, 2015
    Assignee: Nokia Technologies Oy
    Inventors: Andre Mendes Cavalcante, Sayantan Choudhury, Fabiano Chaves, Esa Juhani Tuomaala, Fuad Mousse Abinader, Jr., Erika Portela Lopes De Almeida, Robson Domingos Vieira, Klaus Franz Doppler
  • Patent number: 9225487
    Abstract: Inter-cell interference is avoided in a cellular system operated in a TDD scheme. An order of a plurality of configurations are rearranged in the ascending order of the number of downlink sub frames and in the descending order of the number of uplink sub frames, and configurations are switched between neighboring cells according to the rearranged order when different configurations are used in the neighboring cells. Further, an order of at least some configurations is further rearranged so that interference between adjacent configurations is reduced while maintaining the ascending order of the number of downlink sub frames.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: December 29, 2015
    Assignee: SONY CORPORATION
    Inventor: Hiroaki Takano