Patents Examined by Hong Cho
  • Patent number: 9955508
    Abstract: A method and apparatus for performing a random access procedure in a wireless communication system is provided. In one embodiment, a user equipment (UE) determines a required amount of repetitions for uplink transmissions during a random access procedure, and performs repetitions for uplink transmissions based on the determined required amount of repetitions for uplink transmissions. The uplink transmissions may include transmission of preambles which are grouped. In another embodiment, a UE configures a communication windows for lost-cost machine-type communication (MTC) UE, and performs a random access procedure through the configured communication window.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: April 24, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Jaewook Lee, Sungjun Park, Youngdae Lee, Sunghoon Jung
  • Patent number: 9955482
    Abstract: Systems and methods for improved interference management by Wi-Fi devices are disclosed. The interference management may be achieved by monitoring, by the Wi-Fi device, signaling energy on a communication channel in a frequency band associated with the Wi-Fi device, comparing the monitored signal energy with a known waveform signature corresponding to Long Term Evolution (LTE) operation, and identifying a presence of an LTE interferer on the communication channel in the frequency band associated with the Wi-Fi device based on the comparison.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: April 24, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Nachiappan Valliappan, Ahmed Kamel Sadek
  • Patent number: 9949350
    Abstract: A method for selecting a lighting control group monitor does not require special device network configuration steps during manufacturing. The selected lighting control group monitor is determined based on a location of the lighting control group monitor relative to other lighting system elements within the lighting control group. One lighting system element most centrally located within the lighting control group is selected as the lighting control group monitor. A lighting control group network table listing an entry for each of the lighting system elements is modified such that the entry corresponding to the lighting control group monitor is the first entry in the lighting control group network table. The lighting control group network table is sent to the lighting control group monitor and the lighting control group monitor sends the lighting control group network table to the other lighting system elements in the lighting control group.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: April 17, 2018
    Assignee: ABL IP HOLDING LLC
    Inventors: John Peter Roquemore, III, John W. Scrimgeour
  • Patent number: 9949213
    Abstract: There is provided physical downlink control channel (PDCCH) power coordination. A first transmission point (TP1) and a second transmission point (TP2) are associated with a common physical cell identity (PCI). TP1 and TP2 are controlled by a network node. The network node schedules a first user equipment (UE1) on a first PDCCH allocating a first set of control channel elements (CCEs). TP1 and TP2 adjust power on at least one CCE in the first set of CCEs allocated to UE1. TP1 adjusts power on at least one CCE in a second set of CCEs. The second set of CCEs is allocatable by a second PDCCH for the network node to schedule at least a second user equipment (UE2). TP1 and TP2 decrease the number of CCEs in the first set of CCEs allocated to UE1.
    Type: Grant
    Filed: December 3, 2013
    Date of Patent: April 17, 2018
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Anders Johansson, Jawad Manssour
  • Patent number: 9936414
    Abstract: Systems and methods for improving Long Term Evolution (LTE)-WiFi coexistence in a network, including configuring one or more LTE nodes for asynchronous access and synchronous transmission to bridge LTE and WiFi access modes. A channel is reserved for LTE transmission in the one or more LTE nodes, and a supplementary WiFi module is provided in the one or more LTE nodes for sensing the channel for occupancy and for broadcasting a reservation signal on the channel prior to the LTE transmission. Contention window sizes are scaled linearly by increasing the contention window sizes proportionally to a subframe collision rate to maintain throughput fairness to the WiFi, and synchronous transmission from the one or more LTE nodes to one or more User Devices (UEs) is performed by activating the unlicensed carrier for a reserved time period.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: April 3, 2018
    Assignee: NEC Corporation
    Inventors: Eugene Chai, Mohammad Khojastepour, Sampath Rangarajan, Karthikeyan Sundaresan, Krishna Garikipati
  • Patent number: 9918304
    Abstract: Various methods of allocating uplink control channels in a communication system are implemented at a resource scheduler or a user equipment (UE). In one method the scheduler reserves resources for a downlink data channel and signals a corresponding downlink data channel grant and also reserves resources for a persistent uplink control channel for a longer duration than the data channel grant. Signaling overhead associated with a grant for this persistent uplink control channel is reduced over a full dynamic grant. A predetermined rule can be used at the scheduler and at the UE to avoid overhead signaling associated with a grant for this persistent control channel. Predetermined rules at the UE and scheduler can also be used to reserve appropriate resources and select appropriate MCS levels for control information and the control information and uplink data can be transported over a common uplink channel when a time overlap occurs between an uplink data channel and the persistent control channel.
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: March 13, 2018
    Assignee: Apple Inc.
    Inventors: James McCoy, Leo Dehner, Jayesh Kotecha, Jayakrishnan Mundarath
  • Patent number: 9913094
    Abstract: Distributed antenna systems provide location information for client devices communicating with remote antenna units. The location information can be used to determine the location of the client devices relative to the remote antenna unit(s) with which the client devices are communicating. A location processing unit (LPU) includes a control system configured to receive uplink radio frequency (RF) signals communicated by client devices and determines the signal strengths of the uplink RF signals. The control system also determines which antenna unit is receiving uplink RF signals from the device having the greatest signal strength.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: March 6, 2018
    Assignee: Corning Optical Communications LLC
    Inventor: Michael Sauer
  • Patent number: 9906995
    Abstract: An access point includes a transmitter configured to transmit signals, a receiver configured to receive signals, and a timing information device. The timing information device is configured to receive a timing information request from a station associated to the access point, receive timing information for a beacon signal sent by a second access point, and report the timing information to the station. The timing information includes a time difference relative to a known reference time for transmission of the beacon signal and the time difference is an offset in timing units.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: February 27, 2018
    Assignee: InterDigital Technology Corporation
    Inventors: Vincent Roy, Paul Marinier, Marian Rudolf, Frank La Sita, Christopher Cave, Athmane Touag, Angelo Cuffaro
  • Patent number: 9900906
    Abstract: Methods, apparatuses, and computer readable media are shown for multi-user scheduling in wireless local-area networks (WLANs). A wireless communication device is shown including circuitry to determine a plurality of schedules for each of a plurality of channels for an orthogonal frequency division multiple access (OFDMA) communication in a wireless local-area network (WLAN). Each of the plurality of schedules may include a frequency allocation for one or more communication devices. The circuitry may be further configured to transmit the corresponding schedule of the one or more schedules on each of the one or more channels. Each of the plurality of schedules may include a schedule type and a user association identification (AID) list. A number of user AIDs in the user AID list may be based on the schedule type.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: February 20, 2018
    Assignee: Intel IP Corporation
    Inventors: Guoqing C. Li, Shahrnaz Azizi, Robert J. Stacey
  • Patent number: 9900791
    Abstract: A monitoring device which enables a user to address a failure before said failure occurs, a radio communication system, a failure prediction method and a non-temporary computer-readable medium in which a program is stored are provided. This monitoring device is provided with an acquisition unit and a prediction unit. The acquisition unit acquires history data which is generated in one or more radio communication devices and which indicates at least the time at which a received signal level falls below a preset threshold level in each preset time period. The prediction unit predicts, based on the history data, the possibility of a failure occurring in the radio communication device.
    Type: Grant
    Filed: January 8, 2015
    Date of Patent: February 20, 2018
    Assignee: NEC Corporation
    Inventor: Yoshinori Kitahara
  • Patent number: 9893845
    Abstract: A user equipment (UE), including: a receiver configured to receive downlink data transmitted by a base station via downlink component carriers including a secondary component carrier; and a circuit configured to select uplink resources from available resources for transmitting response signals obtained by decoding the received downlink data and select corresponding modulation symbols by using a mapping relation between a state of the response signals and the selected resources and the modulation symbols according to the state of the response signals; wherein the available resources include resources corresponding to a primary component carrier and resources allocated to the secondary component carrier by the base station; and, wherein the mapping relation includes cases in which the resource corresponding to the response signal that is NACK/DTX is not selected; where NACK represents Negative Acknowledgement, and DTX represents Discontinuous Transmission; and when the response signals are all DTX, no resource
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: February 13, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Yuantao Zhang, Yi Zhang, Yuanrong Lan, Hua Zhou, Jianming Wu
  • Patent number: 9888427
    Abstract: One embodiment of the present invention relates to a method for a first base station transmitting a signal in a wireless communication system, the method comprising the steps of: the first base station receiving channel information from a first terminal belonging to the first base station and a second terminal belonging to a second base station; and transmitting a signal for the first station to at least one terminal from among the first terminal and the second terminal by considering the channel information, wherein if the signal to interference plus noise ratio (SINR) according to the channel information is equal to or higher than a predetermined value, then the signal for the first base station is transmitted to the second signal.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: February 6, 2018
    Assignees: LG Electronics Inc., Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Hyukjin Chae, Byoung-Yoon Min, Kiyeon Kim, Dong Ku Kim
  • Patent number: 9888401
    Abstract: A method sending a first data burst from a base station via a wireless network to a communication device. The first data burst includes a first portion of media content. The method also includes generating a second data burst that includes a second portion of the media content. The second data burst has a size based on potential data wastage of the second data burst, usage efficiency at the base station, or both. The method further includes sending the second data burst to the communication device according to an effective transfer rate of the media content.
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: February 6, 2018
    Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
    Inventors: Milap V. Majmundar, Arvind R. Raghavan
  • Patent number: 9888437
    Abstract: A mobile communication device identifies and selects a wireless local area network (WLAN) available for communications in its coverage area. Automatically, without detecting any requests made by a user via a browser application. The mobile device initiates a request (e.g. an HTTP GET request) to a predetermined server site of a communication network which is outside of the WLAN. In response to initiating the request, the mobile device receives a response message via the WLAN and identifies, from the response message, whether the request to the predetermined server site has been redirected to a redirect server site. The WLAN may be a WLAN “hotspot,” where the redirect server site is a login server. The identifying may be performed by comparing content from the response message to predetermined content of the predetermined server site. In response to identifying that the request has been redirected, the mobile device causes an indication to be produced at its user interface.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: February 6, 2018
    Assignee: BlackBerry Limited
    Inventors: Michael Peter Montemurro, Alain Rene Gagne, Denis Fedotenko, Michael Knowles, Kevin Oerton, Liam Ronald Quinn, Leonardo Jose Silva Salomone
  • Patent number: 9887912
    Abstract: The present disclosure discloses a flow table matching method and apparatus and an OpenFlow switching system to implement matching of any field in any data flow without changing existing hardware logic or a standard protocol. The method includes: receiving a jump instruction and a match instruction that are delivered by a controller for a first flow table; creating a first flow entry in the first flow table; receiving a flow mode message delivered by the controller for a second flow table; and creating a second flow entry in the second flow table. The present disclosure lays a foundation for implementing really flexible and programmable software-defined networking, assists a network service operator in reducing capital expenditures and operation expenditures, and enables a traditional IP network to have more flexible network abstraction and management capabilities for a real-time service.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: February 6, 2018
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Qiang Feng, Weifeng Shen, Xiuchu Zhao
  • Patent number: 9887902
    Abstract: A traffic switching method, a device, and a system where, a software-defined networking (SDN) controller acquires a first state of a target gateway, where the target gateway belongs to an SDN gateway group, the SDN gateway group is used to forward traffic that is transmitted between a first network node and a second network node, and multiple forwarding paths on which multiple gateways in the SDN gateway group are located form multiple equal-cost paths between the first network node and the second network node. The SDN controller sends an Address Resolution Protocol (ARP) entry to the target gateway according to the first state, and changes, of the multiple equal-cost paths, a metric value of a forwarding path on which the target gateway is located from an original value to a first value, where the first value is greater than the original value.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: February 6, 2018
    Assignee: HUAWEI TECHNOLGOIES CO., LTD.
    Inventors: Ziyang Yao, Feng Dong
  • Patent number: 9888489
    Abstract: A first terminal device (100A) transmits scheduling assignments to announce its scheduled data transmissions. A second terminal device (100B), after receiving the scheduling assignment, determines the timing information of the scheduled data transmission from the first terminal device (100A). However, the scheduling assignment transmissions from two terminal devices (100A, 100B) may collide, in which case, the terminal devices(100A, 100B) may fail to receive the scheduling assignment from each other and miss the scheduled data transmissions indicated in the scheduling assignments. The present application discloses how to detect collisions between scheduling assignment transmissions from two terminal devices (100A, 0B) that are configured for device-to-device communication.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: February 6, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Yunxi Li, Qianxi Lu, Stefan Wänstedt
  • Patent number: 9877274
    Abstract: An access control method includes: obtaining, by a protocol-stack upper layer of a terminal, an override identifier; starting, by the protocol-stack upper layer of the terminal, an application specific congestion control for data connectivity ACDC check according to a service initiated by the terminal; and, if the protocol-stack upper layer of the terminal confirms that the service initiated by the terminal can pass the ACDC check and determines that the override identifier corresponding to an application identifier of the service passing the ACDC check is overriding an access class barring ACB check, sending, by the protocol-stack upper layer of the terminal, an RRC establishment request message to an access layer of the terminal, where the request message carries an indication of not performing an ACB check. Therefore, even if the terminal cannot pass the ACB check, the terminal can still perform services of some particular applications.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: January 23, 2018
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yali Guo, Wanqiang Zhang
  • Patent number: 9877335
    Abstract: According to an example implementation, a wireless communication in which user devices belonging to a service group use a first half-duplex time domain resource for sending and receiving messages in the service group and a second time domain resource is used for relaying collided messages.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: January 23, 2018
    Assignee: Nokia Solutions and Networks OY
    Inventors: Kari Pekka Pajukoski, Esa Tapani Tiirola, Eeva Lahetkangas
  • Patent number: 9877280
    Abstract: Provided are power saving methods and devices for a multimode terminal. The method includes that: state values CLK1_EN/CLK2_EN of PWRCTRL1/PWRCTRL2 are controlled and output by using a sleep mode and a wake up mode of a Digital Baseband (DBB) of the multimode terminal; outputs CLK1_OUT/CLK2_OUT of a radio frequency transceiver (RF TRX) are controlled by using CLK1/CLK2 and the CLK1_EN/CLK2_EN; and the CLK1_OUT/CLK2_OUT are sent to a System On chip (SOC)/BUS/Peripheral and a MODEM of the DBB, wherein the CLK1_OUT/CLK2_OUT serve as a high-speed clock source of the multimode terminal in a standby state and a working state. By the solution, the multimode terminal is enabled to shorten wake up time of the MODEM subsystem and prolong sleep time within a Discontinuous Reception (DRX) period, and the effect of reducing standby power consumption is further achieved.
    Type: Grant
    Filed: February 14, 2014
    Date of Patent: January 23, 2018
    Assignee: XI'AN ZHONGXING NEW SOFTWARE CO. LTD.
    Inventor: Liangqing Zhang