Transmitter Controlled By Signal Feedback From Receiver Patents (Class 455/69)
  • Patent number: 9882731
    Abstract: A broadcasting signal reception method according to the present invention comprises the following steps: OFDM-demodulating by receiving a plurality of broadcasting signals, which contain a transmission frame for transmitting a broadcasting service; outputting the transmission frame by decoding a plurality of OFDM-demodulated broadcasting signals with at least one method among MIMO, MISO, and SISO; and selectively decoding a plurality of PLP's, which are included in the transmission frame, using signaling information included in the transmission frame. In particular, PSI/SI such as PAT/PMT can be transmitted through an arbitrary PLP among the plurality of PLP's; and in the transmitter, an arbitrary PLP, which transmits the PAT/PMP, can be decoded first to enable a search of all PLP's that transmit components included in a single broadcasting service, and a plurality of PLP's can be decoded selectively.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: January 30, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Woosuk Ko, Sangchul Moon, Jeonghwan Park, Hotaek Hong
  • Patent number: 9883443
    Abstract: The performance and ease of management of wireless communications environments is improved by a mechanism that enables access points (APs) to perform automatic channel selection. A wireless network can therefore include multiple APs, each of which will automatically choose a channel such that channel usage is optimized. Furthermore, APs can perform automatic power adjustment so that multiple APs can operate on the same channel while minimizing interference with each other. Wireless stations are load balanced across APs so that user bandwidth is optimized. A movement detection scheme provides seamless roaming of stations between APs.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: January 30, 2018
    Assignee: Xenogenic Development Limited Liability Company
    Inventors: Floyd Backes, Gary Vacon, Paul Callahan, William R. Hawe, Roger Durand
  • Patent number: 9877336
    Abstract: A base station that implements an improved link adaptation process that takes into account the fact that a certain reference signal (e.g., CSI-RS) may be seen as interference by certain wireless communication devices (WCDs). Accordingly, when the base station schedules a data transmission for the WCD to occur in a particular TTI and the base station is scheduled to transmit the CSI-RS during the same TTI, the base station will tend to select a more robust MCS for the data transmission to the WCD to counter effect the possible interference caused by the CSI-RS.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: January 23, 2018
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Mats Åhlander, Mikael Jonsson, Stéphane Tessier, Jianwei Zhang
  • Patent number: 9867143
    Abstract: Systems and methods comprise determining a received signal strength (RSSI) of a signal. A sensitivity level of a receiver is determined, where the signal is to be received at the receiver. When a determination is made that the RSSI is greater than the sensitivity level, a transmitter power level is calculated as a difference between the RSSI and the sensitivity level. A transmitter of the signal is controlled in accordance with the transmitter power level.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: January 9, 2018
    Assignee: iControl Networks, Inc.
    Inventors: Kenneth W. Egan, Clay Dearman
  • Patent number: 9866355
    Abstract: Methods, arrangement and network nodes for supporting inter-cell coordination of scheduling of radio resources subjected to inter cell interference. The methods involve identifying one or more radio resources which are subjected to inter-cell interference between a first cell and a second cell. The methods further involve deriving a respective service value related to service that could be provided in the respective first and second cell by use of the one or more radio resources. Further, transmissions in the one or more radio resources are controlled based on comparison of the service values, thus enabling inter-cell service value-based scheduling of the one or more radio resources, prioritizing services having the highest value per radio resource.
    Type: Grant
    Filed: October 10, 2011
    Date of Patent: January 9, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Mehdi Amirijoo, Fredrik Gunnarsson, Johan Moe, Ke Wang Helmersson, Kristina Zetterberg
  • Patent number: 9860857
    Abstract: The present invention discloses a transmit power control method and system, and a sending apparatus. The method includes the following steps: acquiring first information that is used to adjust transmit power for sending a first signal; acquiring power of each working channel; and determining a to-be-adjusted working channel according to an adjustment step, the first information, and the power of each working channel, so as to adjust the transmit power for sending the first signal. According to the foregoing manner, the present invention can adjust transmit power for sending a first signal, avoid saturation of an automatic transmit power control apparatus, and save energy.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: January 2, 2018
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Hao Long
  • Patent number: 9831932
    Abstract: Disclosed is a method for transmitting, by a terminal, feedback information to a network for partial beamforming based on a multi-antenna in a wireless communication system. Specifically, the method comprises: a step of receiving, from the network, reference signals corresponding to antenna sections included in the multi-antenna; a step of selecting one or more beamforming mode among beamforming modes included in a candidate beamforming mode set on the basis of the reference signals, and forming feedback information related to the selected one or more beamforming modes; and a step of transmitting the feedback information to the network, and the feedback information includes a pre-coding matrix index corresponding to at least one of the antenna sections and connection coefficient information for connecting the antenna sections.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: November 28, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Jiwon Kang, Kilbom Lee, Hyunsoo Ko, Jaehoon Chung
  • Patent number: 9832799
    Abstract: A mobile communication system according to the embodiment supports cellular communication in which a data path passes through a network and D2D communication that is direct device-to-device communication in which a data path does not pass through the network. A frequency division multiplexing scheme is applied to the cellular communication and a code division multiplexing scheme is applied to the D2D communication. The network assigns a spread code having orthogonality to a user terminal in response to a request from the user terminal. The user terminal performs the D2D communication by using the spread code assigned by the network.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: November 28, 2017
    Assignee: KYOCERA Corporation
    Inventors: Kugo Morita, Akinori Iwabuchi, Tohru Sunaga
  • Patent number: 9787445
    Abstract: A system and method for inter-cell interference coordination is provided. A method for controller operation includes receiving interferer information from a device served by the controller, scheduling a cell edge device based on the received interferer information, and reporting usage information of the subset of resources to neighboring controllers. The cell edge device operates in a periphery of a coverage area of the controller, and the cell edge device is scheduled to a subset of resources. The method also includes from each neighboring controller, receiving neighboring usage information of a neighboring subset of resources reserved for cell edge devices served by the neighboring controller. The method further includes scheduling a cell center device based on the received usage information from the neighboring controllers, and transmitting to scheduled devices over their respective scheduled resources. Cell center device is scheduled to resources not in the subset of resources.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: October 10, 2017
    Assignee: FUTUREWEI TECHNOLOGIES, INC.
    Inventors: Weimin Xiao, Oghenekome Oteri, Cornelius Dawid Janse van Rensburg
  • Patent number: 9788212
    Abstract: Disclosed in some examples are systems, machine-readable media, methods, and cellular wireless devices which implement a Listen-Before-Talk (LBT) access scheme for a device operating according to a cellular wireless protocol in an unlicensed channel. A cellular wireless device may utilize the cellular wireless protocol in the unlicensed channel after the LBT access scheme has determined that a channel (a defined range of frequencies) in the unlicensed channel is idle for a particular period of time.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: October 10, 2017
    Assignee: Intel IP Corporation
    Inventors: Abhijeet Bhorkar, Hwan-Joon Kwon, Christian Ibars Casas
  • Patent number: 9769644
    Abstract: A user equipment (UE) includes a transmission mode component, a selection component, and a transmission component. The transmission mode component is configured to selectively allocate resources for device-to-device communication according to a plurality of transmission modes. The plurality of transmission modes include a first transmission mode in which the resources used by the UE are specifically allocated by one of a base station or relay node and a second transmission mode in which the UE selects the resources from a pool of available resources. The selection component is configured to select a selected transmission mode. The transmission component is configured to transmit signals in frequency resources selected according to the selected transmission mode.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: September 19, 2017
    Assignee: INTEL IP CORPORATION
    Inventors: Hong He, Yujian Zhang, Seunghee Han
  • Patent number: 9767329
    Abstract: Systems, apparatuses and methods provide for detecting the proximate placement of an external NFC reader to a specific location on a display surface. The display surface can be intended for viewing indicia and enabling interaction with an NFC communication device embedded within the display. A circuit can control an NFC security system that can scan for unauthorized tags affixed to the surface of a display. The NFC security system may be activated by an NFC enabled mobile phone placed proximate to the indicated region for receiving an NFC coded message from the display. An NFC security scan can be performed prior to the mobile phone reading the message from the intended NFC tag in the display. Enabling interactive display modes can allow for making selections indicated on the display or detecting motion gestures across the face of the display.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: September 19, 2017
    Assignee: AVERY DENNISON RETAIL INFORMATION SERVICES, LLC
    Inventor: Ian J. Forster
  • Patent number: 9756577
    Abstract: A method for defining a parameter value for controlling the transmission power of a set of user equipment served by a cell defined by a base station of a cellular telecommunication network, includes, for the base station, receiving, from the set of user equipment located in the cell, a set of attenuation values including, respectively by piece of equipment, an attenuation value of a signal transmitted by the base station and received by the piece of user equipment and, if the piece of user equipment is also located in a non-serving cell, an attenuation value of a signal transmitted by the base station of the non-serving cell and received by the piece of user equipment; determining, from the set of received attenuation values, a value of a parameter for controlling the transmission power; and sending, to the set of user equipment served by the cell, the value of the control parameter.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: September 5, 2017
    Assignee: AIRBUS DS SAS
    Inventors: Christophe Gruet, François Montaigne, Jean-Christophe Schiel, Guy Philippe
  • Patent number: 9712218
    Abstract: A method for a wireless device capable of receiving and transmitting a signal includes receiving a reference signal from a second wireless device through a communication channel, estimating the communication channel, using the reference signal, selecting a pair of an analog digital converter (ADC) quantizer and an input distribution, based on the estimated communication channel, and sending information on the selected input distribution and the ADC quantizer to the second wireless device. A wireless device capable of wirelessly receiving and transmitting a signal includes a transceiver configured to receive a reference signal from a second wireless device through a communication channel, and a processor configured to estimate the communication channel, using the reference signal, selecting a pair of an ADC quantizer and an input distribution, based on the estimated communication channel, and sending information on the selected input distribution and the ADC quantizer to the second wireless device.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: July 18, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Jaspreet Singh
  • Patent number: 9707066
    Abstract: In one embodiment, a medical device includes a resorbable material that is configured to be disposed within the body of the patient proximate a bodily implant. The resorbable material is configured to frictionally retain the implant in place within the body of the patient for at least a period of time. In one embodiment, a kit includes an implant and a resorbable material. The implant is configured to be disposed within a body of a patient. The resorbable material is configured to be disposed within the body of the patient proximate the implant to frictionally retain the implant in place within the body of the patient for a period of time. The resorbable material is configured to be resorbed by the body after the period of time.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: July 18, 2017
    Assignee: Boston Scientific Scimed, Inc.
    Inventors: Timothy P. Harrah, Kenneth Daignault
  • Patent number: 9705190
    Abstract: An apparatus forms a weight for each signal path associated with an antenna of a plurality of antennas around a test zone in an over-the-air chamber by a comparison of a desired target electric field based on a radio channel model and an electric field obtainable by the plane waves associated with the test zone, the plane waves being transmittable by the antennas and being based on at least one basis waveform in each signal path.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: July 11, 2017
    Assignee: Keysight Technologies Singapore (Holdings) Ptd. Ltd.
    Inventors: Pekka Kyösti, Tommi Jämsä, Tommi Laitinen
  • Patent number: 9693317
    Abstract: A configuration method for transmitting TPC command, a TPC command transmission method, and an apparatus. In the present invention, a radio network controller sends indication information to a terminal and a serving base station of the terminal to indicate a sending timeslot of an uplink TPC command of the terminal, so that sending timeslots of different TPC commands can be indicated for different terminals, and uplink TPC commands of multiple terminals are staggered in a timeslot. In this way, even if F-DPCHs of multiple terminals are configured with a same timeslot format, it can be avoided that locations of the uplink TPC commands are the same, and further a TPC peak-to-average ratio is lower than that in the prior art.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: June 27, 2017
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Wenying Xu
  • Patent number: 9681397
    Abstract: An apparatus determines a transmission power of a signal transmitted by a user equipment (UE) in a cell that is identified by a virtual cell identifier. The apparatus generates a power control command based on the determined signal power, and transmits the power control command to a plurality of UEs. Subsequent to transmission of the power control command, the apparatus receives a plurality of transmissions from the plurality of UEs. Some of the transmissions have different transmission powers. The different transmission powers of the signals transmitted by the UEs are due to the power control command and a predefined power offset associated with each respective UE.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: June 13, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Hao Xu, Peter Gaal, Wanshi Chen
  • Patent number: 9680539
    Abstract: In a communication system in which a base station is able to adaptively control a terminal, a base station, a terminal, a communication system and a communication method which are capable of efficiently supporting a precoding process are provided. The terminal that communicates with the base station selects any of a plurality of codebook subsets obtained by code-booking a precoding weight known to both the base station and the terminal, on the basis of control information which is set by the base station.
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: June 13, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kazuyuki Shimezawa, Toshizo Nogami
  • Patent number: 9680623
    Abstract: According to one embodiment of the present invention, a method for reporting the channel state of an enhanced physical downlink control channel (EPDCCH) in a wireless communication system is disclosed, comprising the steps of: selecting N sub-bands from a set of sub-bands; and reporting a channel quality indicator (CQI) for the N sub-bands. At least one sub-band from among the N sub-bands (hereinafter, referred to as an EPDCCH SB) may be a sub-band including a pair of physical resource blocks (PRB) set as the EPDCCH.
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: June 13, 2017
    Assignee: LG Electronics Inc.
    Inventors: Jihyun Lee, Hanbyul Seo, Hakseong Kim
  • Patent number: 9668224
    Abstract: A radio base station apparatus including a function for determining a transmission power, including: a neighbor cell detection unit configured to detect a neighbor cell that interferes with a target cell that the radio base station apparatus can form; a received power measurement unit configured to measure, for each neighbor cell detected by the neighbor cell detection unit, a received power from the neighbor cell; and a transmission power determination unit configured to calculate, for each band part that overlaps with a transmission band of the radio base station apparatus in transmission bands of each neighbor cell, a sum of received powers for neighbor cells having transmission bands each including the band part, and to determine an interference amount in the target cell based on the sum of received powers so as to determine the transmission power by using the interference amount.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: May 30, 2017
    Assignee: NTT DOCOMO, INC.
    Inventors: Takao Someya, Atsushi Fukuda, Hiroyuki Hosono, Shogo Yabuki
  • Patent number: 9655062
    Abstract: In a wireless communication system, there are several wireless channels used for communication between users and a base station. Channel characteristics may be defined by whether a channel is carrying traffic data and the timing of the channel transmissions with respect to channels not carrying traffic data. Different power levels between channels carrying traffic data or not may be defined and individual power levels of each channel may be amended based on individual power level command responses.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: May 16, 2017
    Assignee: IPR Licensing, Inc.
    Inventor: James A. Proctor, Jr.
  • Patent number: 9635641
    Abstract: The present invention discloses a method, an apparatus, and a system. The method includes: acquiring, by a base station, in at least one scenario of the following five scenarios, a broadcast/multicast service (MBMS) interest indication reported by a user equipment; and performing, by the base station, an MBMS handover on the user equipment according to the MBMS interest indication, where the five scenarios include: when the user equipment receives modified MBMS auxiliary information, in a process in which the user equipment is handed over from a source base station to the base station and after the handover is completed, when a radio resource control protocol RRC of the user equipment is re-established to the base station, when an MBMS service that interests the user equipment ends, and when a carrier configuration of the user equipment is modified.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: April 25, 2017
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Qinghai Zeng, Mingzeng Dai
  • Patent number: 9608792
    Abstract: Disclosed are an adaptive frequency domain resource configuration method, an apparatus, and a communications system. The method includes receiving, by a receiving apparatus, a pilot signal transmitted by a transmitting apparatus and feeding back channel information of a channel for transmitting the pilot signal to the transmitting apparatus by measuring the pilot signal, so that the transmitting apparatus divides a bandwidth frequency of the transmitting apparatus according to the channel information. The receiving apparatus can feed back the channel information to the transmitting apparatus according to the received pilot signal, so that the transmitting apparatus can divide the bandwidth frequency according to channel quality, and adaptive adjustment can be performed on a frequency domain resource of each subcarrier according to the channel information fed back by the receiving apparatus.
    Type: Grant
    Filed: January 19, 2015
    Date of Patent: March 28, 2017
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Ni Ma, Yong Zhao, Min Huang, Ting Yang
  • Patent number: 9548848
    Abstract: Adaptive Modulation and Coding Scheme (MCS) selection is used in many wireless communication systems. The goal of Adaptive MCS selection is to use the most suitable MCS for any particular channel conditions. Often, the MCS selection is based on channel measurements by the client terminal. The relationship between the block error rate (BLER) and the Signal-to-Interference-plus-Noise Ratio (SINR) is not linear. The BLER is often determined by the lowest SINR rather than the average SINR experienced by the set of bits that are part of the block. The Exponential Effective SINR Mapping (EESM) method is often used to compute effective SINR for adaptive MCS selection. However, the complexity of selecting the optimum channel feedback from the client terminal to the base station is typically high. A method and apparatus are disclosed that enable EESM for selecting the most suitable MCS with reduced complexity and reduced power consumption.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: January 17, 2017
    Assignee: MBIT WIRELESS, INC.
    Inventors: Bhaskar Patel, Arumugam Govindswamy
  • Patent number: 9538395
    Abstract: Techniques are provided for utilizing selected inter-frame spacing, such as reduced inter-frame spacing (RIFS) or short inter-frame spacing (SIFS) to avoid failed data transmissions in a Wi-Fi network or the like. For example, there is provided a method, operable by a transmitter node or entity, such as, for example, an access point (AP), that may involve sending a data transmission in a data aggregation mode, the data transmission comprising aggregated MAC protocol data units (A-MPDUs). The method may involve monitoring for and detecting potential short interference bursts in the network. The method may involve re-sending the data transmission in a data bursting mode, the data transmission comprising back-to-back data packet bursts separated by a selected inter-frame spacing.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: January 3, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Ahmed Kamel Sadek, Mehmet Yavuz
  • Patent number: 9538410
    Abstract: The present invention relates to a method for user equipment transmitting an uplink signal in a time division duplex (TDD) wireless communication system, according to one embodiment. The method comprises: detecting a downlink control signal; and transmitting the uplink signal on the basis of uplink-related control information which is included in the downlink control signal that is detected, wherein a transmission power value is reported on the basis of an indicator, which indicates reporting of the transmission power value of the uplink signal at a specific time.
    Type: Grant
    Filed: March 20, 2013
    Date of Patent: January 3, 2017
    Assignee: LG Electronics Inc.
    Inventors: Jonghyun Park, Hakseong Kim, Suckchel Yang, Hanbyul Seo, Kijun Kim, Byounghoon Kim
  • Patent number: 9538483
    Abstract: Systems and methods are described for jointly optimizing communications in a multi-user network to maximize the weighted sum-rate of its data links. For example, embodiments seek to maximize overall link transmit rates, while minimizing link interference and/or noise in general multi-in multi-out (MIMO) interference networks having multiple interfering data links, each with one or more antennas at the transmitter and receiver. Novel algorithmic approaches, including an “iterative minimax” approach and a “dual link” approach, are described for solving the weighted sum-rate maximization in a manner that converges quickly and reliably on an optimal point. Some embodiments implement these approaches in a centralized transmission controller, while others implement these approaches in a distributed fashion.
    Type: Grant
    Filed: September 16, 2014
    Date of Patent: January 3, 2017
    Assignee: The Regents of the University of Colorado, A Body Corporate
    Inventors: Lijun Chen, Xing Li, Youjian Liu
  • Patent number: 9537556
    Abstract: System and method embodiments are provided to optimize uplink multiple-input-multiple-output (MIMO) beamforming for uplink and compression for fronthaul links transmission in cloud radio access network (C-RANs). In an embodiment, cloud-computing based central processor (CP) obtains channel state information for a mobile device (MD) being served by a plurality of access points (APs) in a C-RAN, and generates a channel gain matrix in accordance with the channel state information. A weighted sum-rate maximization model is then established using the channel gain matrix in accordance with power constraints of transmission from the MD to the APs and capacity constraints of fronthaul links connecting the APs to the CP.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: January 3, 2017
    Assignees: Huawei Technologies Canada Co., Ltd., The Governing Council of the University of Toronto
    Inventors: Yuhan Zhou, Wei Yu, Mohammadhadi Baligh
  • Patent number: 9531450
    Abstract: Some demonstrative embodiments include devices, systems and/or methods of beam selection for beamformed communication. For example, an apparatus may include a controller to control a plurality of antenna subarrays to form a plurality of directional beams for communicating a beamformed diversity wireless transmission over a plurality of selected directional links, which are selected based on at least one predefined selection metric.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: December 27, 2016
    Assignee: INTEL CORPORATION
    Inventors: Alexander Alexandrovich Maltsev, Andrey Pudeyev, Vadim S. Sergeyev, Ali S. Sadri, Carlos Cordeiro, Alexei Vladimirovich Davydov
  • Patent number: 9531501
    Abstract: During operation in the described embodiments, a transmitting electronic device transmits a first data channel protocol data unit (PDU) with a payload containing data D to a receiving electronic device using a Bluetooth Low Energy (BTLE) interface in a sending window for the transmitting electronic device during a regular event, wherein transmitting the first data channel PDU during the regular event comprises using a first frequency to transmit the first data channel PDU. The transmitting electronic device then transmits a second data channel PDU with a payload containing the same data D to the receiving electronic device using the BTLE interface in a sending window for the transmitting electronic device during a corresponding retransmission event, wherein transmitting the second data channel PDU during the retransmission event comprises using a second frequency to transmit the second data channel PDU.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: December 27, 2016
    Assignee: Apple Inc.
    Inventors: Joakim Linde, Brian J. Tucker
  • Patent number: 9525472
    Abstract: Components, systems, and methods for reducing location-dependent destructive interference in distributed antenna systems operating in multiple-input, multiple-output (MIMO) configuration are disclosed. Interference is defined as issues with received MIMO communications signals that can cause a MIMO algorithm to not be able to solve a channel matrix for MIMO communications signals received by MIMO receivers in client devices. These issues may be caused by lack of separation (i.e., phase, amplitude) in the received MIMO communications signals. Thus, to provide amplitude separation of received MIMO communications signals, multiple MIMO transmitters are each configured to employ multiple transmitter antennas, which are each configured to transmit in different polarization states. In certain embodiments, one of the MIMO communications signals is amplitude adjusted in one of the polarization states to provide amplitude separation between received MIMO communications signals.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: December 20, 2016
    Assignee: Corning Incorporated
    Inventors: Jacob George, Anthony Ng'Oma, Hejie Yang
  • Patent number: 9520927
    Abstract: To report feedback information regarding a wireless channel, a mobile station determines whether a predefined condition is satisfied. In response to determining that the predefined condition is satisfied, feedback information regarding an individual one of plural subbands of the wireless channel is included in a first report to be sent to a base station. In response to determining that the predefined condition is not satisfied, aggregate feedback information regarding the plural subbands is included in a second report to be sent to the base station.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: December 13, 2016
    Assignee: Apple Inc.
    Inventors: Sairamesh Nammi, Shankar Venkatraman, Gaurav Hemrajani, Ashvin Chheda, Lai King Tee, Neng Wang, Kathiravetpillai Sivanesan
  • Patent number: 9515774
    Abstract: Methods and apparatus, including computer program products, are provided for energy efficient communication based on feedback. A method may include sending a first message carried by a first wireless radio channel at a first predetermined energy level; receiving, in response to the first message, a second message carried by a second wireless radio channel; comparing the first message to the second message; sending a termination message, when the comparing indicates the first message and the second message match; and sending a portion of the first message at a second predetermined energy level, when the comparing indicates the second message contains at least one error when compared to the first message.
    Type: Grant
    Filed: February 20, 2014
    Date of Patent: December 6, 2016
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Andrea Goldsmith, Seyed Reza Mir Ghaderi
  • Patent number: 9516594
    Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus identifies a UE relay and transmits a very low duty cycle signal (LDCS) configuration of the UE relay. The apparatus may comprise, e.g., an LPN that is not in a dormant state or a macrocell. The apparatus may receive LDCS information for the UE relay. The apparatus may determine the LDCS configuration and transmit the LDCS configuration to the UE relay.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: December 6, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Hao Xu, Durga Prasad Malladi, Yongbin Wei, Peter Gaal, Wanshi Chen, Aleksandar Damnjanovic, Tao Luo
  • Patent number: 9510301
    Abstract: The present invention relates to the field of information communication and control, and discloses a method and an apparatus for adjusting transmit power and used to resolve a problem of interference between paths in a multipath system. The method provided by the present invention specifically includes: determining a path with worst signal quality according to signal quality information of each path; then, increasing transmit power of the path, or, decreasing transmit power of at least one path that produces strongest interference to the path with the worst signal quality; and finally, using a manner of cyclically adjusting signal transmit power to enable interference between the paths to meet a requirement of not affecting communications quality, thereby resolving a problem of interference between paths in a multipath system. Embodiments of the present invention are mainly used in a data transmission process in a multipath system.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: November 29, 2016
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Zihuan Chen, Dafeng Tian, Jun Ma
  • Patent number: 9504047
    Abstract: An apparatus and a method for opportunistic user scheduling of two-cell multiple user Multiple Input Multiple Output (MIMO) by a base station, the method comprising: broadcasting signals through random beams to users; and receiving Channel Quality Information (CQI) from best K user set. The CQI is calculated based on all possible combinations of transmit beamforming vectors.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: November 22, 2016
    Assignees: Samsung Electronics Co., Ltd, Purdue Research Foundation
    Inventors: Ki-Il Kim, Duck-Dong Hwang, Clerckx Bruno, Tae-Joon Kim, David J. Love
  • Patent number: 9496904
    Abstract: There is provided systems and methods for mitigating foreign interference by complementing a receiver of a wireless network, comprising: using antennas for reception of desired signals and interference signals; determining the presence of an interference signal originating from at least one foreign transmitting source in the received signals, and for determining a termination of the interference signal; determining the presence of a desired signal originating from the wireless communication network in the received signals; calculating a suitable combination of the received signals, wherein the effect induced by the interference signal is reduced and the impact of an interference cancellation on the desired signals is reduced; and providing the suitable combination to a receiver of a wireless communication network; wherein the method is performed complementary to the receiver of the wireless network and the antennas.
    Type: Grant
    Filed: February 13, 2014
    Date of Patent: November 15, 2016
    Assignee: Ubiqam Ltd.
    Inventors: Baruch Cyzs, Amir Meir, Oren Amidan, Daniel Manor
  • Patent number: 9485723
    Abstract: A method, computer-readable storage device, and an apparatus for reducing power consumption in a wireless network are disclosed. For example, the method performs an analysis of a usage pattern for a cell site, determines whether a threshold is reached for reducing the power consumption based on the analysis of the usage pattern, and reduces the power consumption when the threshold is reached for reducing the power consumption.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: November 1, 2016
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Soumyajit Chakraborty, Shiv Kumar, Michael John Zinnikas
  • Patent number: 9480028
    Abstract: Methods, systems, and apparatuses operate to adjust transmission power of a customer premise equipment device using a transmit channel set parameter. Power characteristics associated with a received signal from a customer premise equipment device can be identified, and a determination is made whether to adjust a transmission power associated with transmission of the signal. Based upon the determination, an adjustment can be made to the transmission power using a transmit channel set parameter, thereby adjusting the channels used by the customer premise equipment device to transmit the signal.
    Type: Grant
    Filed: June 11, 2012
    Date of Patent: October 25, 2016
    Assignee: ARRIS Enterprises, Inc.
    Inventors: Dwain E. Frieh, Gregory Gohman
  • Patent number: 9473327
    Abstract: A radio communication device includes: a processor configured to execute a program; and a memory configured to store the program, wherein the processor performs, based on the program, operations to: detect communication quality of each of a plurality of channels; and lower a first set modulation level of a first channel with the communication quality which is equal to or lower than a level and a second set modulation level of a first adjacent channel as at least one of two adjacent channels adjacent to the first channel in a frequency axis direction.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: October 18, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Shigemi Aizawa, Ichio Shimizu, Ken Hiratsuka, Hikaru Murano
  • Patent number: 9459682
    Abstract: A method includes receiving, at a first connectivity device, a first wake-up signal from an electronic device associated with a first class of devices. The first connectivity device is coupled to provide communications between the electronic device and a gateway device that provides access to an external network. The method includes determining a length of time that the first connectivity device is to remain in an active power mode based on a usage pattern defined for the first class of devices. The method includes updating the first connectivity device to be in the active power mode for at least the length of time.
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: October 4, 2016
    Assignee: QUALCOMM Incorporated
    Inventor: Purva R. Rajkotia
  • Patent number: 9454204
    Abstract: Includes receiving, from a link partner, a message specifying a link partner receive wake time and resolving to the lesser of the received link partner receive wake time and a local transmit wake time.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: September 27, 2016
    Assignee: Intel Corporation
    Inventors: Aviad Wertheimer, Robert Hays
  • Patent number: 9445292
    Abstract: A method for transmitting channel quality information based on a differential scheme is disclosed. When channel quality information of a predetermined number of sub-bands selected by a receiver in a frequency selective channel is transmitted, total average channel information is transmitted. Channel information of the selected sub-bands is transmitted as sub-band differential information associated with average channel information. In this case, the sub-band differential information may be denoted by a specific value contained in a differential-value range including only positive (+) values. If at least two channel quality information is transmitted by a MIMO system, channel quality information of one channel is transmitted, then channel quality information of the other channel is transmitted as spatial differential information. In this case, the spatial differential information is denoted by a specific value contained in a differential-value range asymmetrical on the basis of “0”.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: September 13, 2016
    Assignee: LG Electronics Inc.
    Inventors: Dong Wook Roh, Bong Hoe Kim, Joon Kui Ahn, Yu Jin Noh, Dong Youn Seo, Ki Jun Kim
  • Patent number: 9444526
    Abstract: In cooperative signal communication between a mobile terminal (200) and a plurality of access nodes (100-1, 100-2, 100-3), cooperation signals (20), e.g. received signals or signals to be transmitted, are communicated with the access nodes (100-1, 100-2, 100-3). The cooperation signals (20) are quantized according to a quantization parameter, e.g. quantization depth and/or quantization type, which is adapted on the basis of a cooperative communication parameter. The cooperative communication parameter is a characteristic of the cooperative communication process, e.g. modulation scheme.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: September 13, 2016
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Christian Hoymann, Michael Meyer, Laetitia Falconetti
  • Patent number: 9438366
    Abstract: A user equipment (UE) begins to access a heterogeneous network by obtaining synchronization parameters from system signals transmitted by a weaker one of a number of neighboring cells. After synchronizing with the network, the UE obtains resource scheduling information for the weaker cell. The resource scheduling information indicates at least one resource used by the weaker cell. The UE may then cancel the stronger cells of the neighboring cell. The resource scheduling information allows the UE to identify broadcasted system blocks for the weaker cell from which it may decode and retrieve control information used to complete access to the network.
    Type: Grant
    Filed: February 3, 2011
    Date of Patent: September 6, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Tao Luo, Juan Montojo, Wanshi Chen
  • Patent number: 9439201
    Abstract: A radio base station and a method therein for scheduling an uplink radio resource to a first user equipment in a wireless communication system which employs CDMA are provided. The method comprises measuring an Interference Cancellation, IC, gain for each user equipment in a set of user equipments currently being served by the radio base station. The method further comprises determining a user constellation pertaining to information regarding the different user equipments in the set of user equipments and their respective bitrates; and updating a table of IC gain with the measured IC gain in bins corresponding to the determined user constellation. The method further comprises predicting a load based on at least the updated table, and scheduling the uplink radio resource to the first user equipment at least partly based on the predicted load.
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: September 6, 2016
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventor: Torbjörn Wigren
  • Patent number: 9432860
    Abstract: A radio access network (RAN) allocates a resource, such as a forward traffic channel, to a mobile station that is engaged in a call. During the call, the RAN monitors a reverse link signal that is received from the mobile station. If the RAN detects a reception failure, such as the receipt of an errored frame in the reverse link signal, the RAN determines the power level that the mobile station used to transmit the reverse link signal when the reception failure occurred. If the mobile station was already transmitting at its maximum power level, the RAN may immediately release the resource. Otherwise, the RAN defines a test period that is sufficient for the mobile station to increase its transmit power to the maximum level. If the reception failure continues throughout the test period, the RAN may then release the resource.
    Type: Grant
    Filed: May 19, 2010
    Date of Patent: August 30, 2016
    Assignee: Sprint Spectrum L.P.
    Inventors: Bhagwan Khanka, Debasish Sarkar, Anoop K. Goyal
  • Patent number: 9432861
    Abstract: A mobile station involved in a call receives a forward link signal from a radio access network (RAN) and transmits a reverse link signal to the RAN. If the mobile station detects a reception failure of the forward link signal, such as the receipt of an errored frame, the mobile station determines the power level that the RAN used to transmit the forward link signal when the reception failure occurred. If the RAN was already transmitting at its maximum power level, the mobile station may discontinue transmission of the reverse link signal if the next frame from the RAN is also an errored frame. Otherwise, the mobile station defines a test period that is sufficient for the RAN to increase its transmit power to the maximum level. If the reception failure continues throughout the test period, the mobile station discontinues transmission of the reverse link signal.
    Type: Grant
    Filed: May 19, 2010
    Date of Patent: August 30, 2016
    Assignee: Sprint Spectrum L.P.
    Inventor: Sachin R. Vargantwar
  • Patent number: 9419701
    Abstract: Systems and methods for real-time signal validation are disclosed. In an example embodiment, a subset of terminals in a peer group of satellite terminals is determined. Operational statistics of the satellite terminals in the subset of terminals is measured. Operational statistics of each of the satellite terminals in the subset of terminals is compared to a prior measurement of the same operational statistics. An offset between a current measurement of the operational statistics and the prior measurement of the same operational statistics is determined. An average offset of the current measurement of the operational statistics and the prior measurement of the same operational statistics is determined for the subset of terminals. The average offset for the subset of terminals is merged with a previously determined peer group operational statistic. A signal validation of a terminal is performed using an updated deviation value.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: August 16, 2016
    Assignee: Hughes Network Systems, LLC
    Inventors: Jack Rozmaryn, Kent Pellerin