Arbitration For Access Between Contending Stations Patents (Class 370/447)
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Patent number: 10516614Abstract: Methods and apparatus for multiple user uplink are provided. In one aspect, a method of wireless communication is provided. The method includes transmitting a quality of service (QoS) message to a device. The QoS message includes a request for a transmission opportunity for sending uplink data to the device. The QoS message includes at least one of a sequence control field or a QoS control field. The method further includes receiving a clear to transmit (CTX) message in response to the QoS message. The method further includes transmitting data to the device in response to the CTX message.Type: GrantFiled: August 26, 2014Date of Patent: December 24, 2019Assignee: QUALCOMM IncorporatedInventors: Simone Merlin, Gwendolyn Denise Barriac, Hemanth Sampath, Sameer Vermani
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Patent number: 10491319Abstract: Mitigation of inter-base station resynchronization loss in wireless networks including contention-based shared frequency spectrum is discussed. Aspects of such mitigation provide for base stations entering into an idle mode when a transmission opportunity occurs in a radio frame of the next resynchronization occasion. Additional aspects provide for the base station to signal a flexible listen before talk (LBT) frame length to the user equipment (UE), either with or without explicit signaling of the downlink-uplink division. Further aspects provide for the base station to signal a reset indication to UEs that will prompt the UEs to monitor for downlink channel reserving signals prior to the current LBT frame ending by the resynchronization occasion.Type: GrantFiled: October 23, 2017Date of Patent: November 26, 2019Assignee: QUALCOMM IncorporatedInventors: Xiaoxia Zhang, Vikas Jain, Srinivas Yerramalli, Tao Luo, Aleksandar Damnjanovic, Kiran Kumar Somasundaram
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Patent number: 10489319Abstract: Various embodiments are disclosed for automatic transmission of dummy bits in a serial bus master. The disclosed embodiments allow a single DMA descriptor to be fetched from memory for the reception of a specified amount of data. Dummy bits can be located or generated in the serial bus master either as a user configurable value or a default value. Logic in the serial bus master initiates a data transfer by writing a count value representing an amount of data to be received to a count register in the serial bus master. The single DMA descriptor is then configured to handle the internal transfer of bits received by the serial bus master from a serial bus slave and the DMA controller is enabled. When data transfer is initiated, the serial bus master starts sending dummy bits to the serial bus slave and receiving data bits from the serial bus slave.Type: GrantFiled: October 25, 2017Date of Patent: November 26, 2019Assignee: Atmel CorporationInventor: Eivind Berntsen
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Patent number: 10452337Abstract: A controlled-environment facility and/or communications management system interface accepts definition of a digital bulletin board message directed to at least one controlled-environment facility resident, accepts assignment of a priority for displaying the digital bulletin board message on the digital bulletin board and a schedule for display of the digital bulletin board message and accepts assignment of the digital bulletin board message to controlled-environment resident communication and/or media device(s) disposed in the controlled-environment facility. The digital bulletin board message(s) are received by the controlled-environment resident communication and/or media device(s) to which the digital bulletin board message is assigned, and are displayed by the controlled-environment resident communication and/or media device(s) to which the digital bulletin board message(s) are assigned, in accordance with the assigned priority and the schedule for display of the digital bulletin board message(s).Type: GrantFiled: November 29, 2016Date of Patent: October 22, 2019Assignee: Securus Technologies, Inc.Inventors: Alice J. Clements, Joseph Higgs, Matthew Smith
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Patent number: 10452603Abstract: Systems, methods and apparatus are described that offer improved performance of a sensor bus. A first command is transmitted to devices coupled to a serial bus operated in a first mode in accordance with a first protocol to cause the serial bus to be operated in a second mode. After communicating in accordance with a second protocol while the serial bus is operated in the second mode, a second command is transmitted to the plurality of devices in accordance with the first protocol to terminate the second mode. In the second mode, extra symbols inserted into a sequence of symbols transmitted on the serial bus prevent the occurrence of an unintended signaling state on the serial bus. Pulses transmitted on a wire of the serial bus in the second mode may have their duration limited such that a filter of a second device suppresses the limited-duration pulses.Type: GrantFiled: February 13, 2018Date of Patent: October 22, 2019Assignee: QUALCOMM IncorporatedInventors: Radu Pitigoi-Aron, Richard Dominic Wietfeldt, Douglas Wayne Hoffman
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Patent number: 10425964Abstract: Systems and methods of performing a listen-before-talk (LBT) radio protocol in a communication system are provided. In one exemplary embodiment, a method (600) by a radio component (403, 503) of a wireless device (400, 500) may include receiving (601), by the radio component, from a baseband component (401, 501) of the wireless device, transmit data during a transmit-time interval associated with a synchronous wireless communication system. Further, the method may include, detecting (603), by the radio component, that a medium associated with an asynchronous communication system is available. Also, in response to detecting, the method may include, transmitting (605), by the radio component, the transmit data on the medium during the transmit-time interval.Type: GrantFiled: November 20, 2015Date of Patent: September 24, 2019Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Daniel Figueiredo, Håkan Andersson, Ashim Biswas, Jonas Fröberg Olsson, Damanjit Singh
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Patent number: 10420140Abstract: Multicast transmissions are efficient but do not allow for individual acknowledgement that the data was received by each receiver. This is not acceptable for isochronous systems that require specific levels of QoS for each device. A multimedia communications protocol is provided that uses a novel multi-destination burst transmission protocol in multimedia isochronous systems. The transmitter establishes a bi-directional burst mode for multicasting data to multiple devices and receiving Reverse Start of Frame (RSOF) delimiters from each multicast-destination receiver in response to multiple SOF delimiters, thus providing protocol-efficient multi-destination acknowledgements.Type: GrantFiled: October 10, 2017Date of Patent: September 17, 2019Assignee: STMicroelectronics, Inc.Inventors: Oleg Logvinov, Aidan Cully, David Lawrence, Michael J. Macaluso
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Patent number: 10417172Abstract: Systems, methods and apparatus are described that offer improved performance of a sensor bus. A method includes transmitting a first command on a serial bus while operating in a first mode of operation, exchanging first data with the first device in accordance with a second protocol associated with the second mode of operation, and exchanging second data with the first device in accordance with the second protocol after the first period of time. The first command may be transmitted in accordance with a first protocol to cause a first device to operate in a second mode of operation. The first device may be idle for a first period of time after the first data has been exchanged.Type: GrantFiled: August 24, 2017Date of Patent: September 17, 2019Assignee: QUALCOMM IncorporatedInventors: Radu Pitigoi-Aron, Richard Dominic Wietfeldt, Douglas Wayne Hoffman
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Patent number: 10404626Abstract: A network device that includes a plurality of packet processing components may receive traffic associated with one or more services. The network device may store state information for each of the plurality of packet processing components, while the plurality of packet processing components are receiving the traffic. The state information may include state configuration information and/or internal storage information. The state information may be stored using a data structure that is internal to the network device and external to the packet processing component. The network device may detect an error that prevents the packet processing component from processing at least a portion of the traffic. The network device may execute, based on detecting the error that prevents the packet processing component from processing at least the portion of the traffic, a recovery procedure that uses the state information to reset the packet processing component to an operational state.Type: GrantFiled: March 23, 2018Date of Patent: September 3, 2019Assignee: Juniper Networks, Inc.Inventors: Nayan S. Patel, Eswaran Srinivasan, Alex Baban, Timothy L. Patrick
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Patent number: 10397793Abstract: An apparatus, configured to communicate with an access terminal in a wireless network and operating in a frequency-division duplexing mode, can be caused to refrain from transmitting during at least one subframe of a frame of a downlink frequency band, and can be caused to monitor for the radar transmission during the at least one subframe of the frame of the downlink frequency band. Optionally, a placement of the at least one subframe within the frame of the downlink frequency band can correspond to a placement of at least one subframe that is designated for an uplink communication within a frame of a wireless network that is operating in accordance with the Long-Term Evolution Time-Division Duplex standard, or can correspond to a placement of at least one subframe that is designated for a transmission in accordance with the Multimedia Broadcast Multicast Service specification.Type: GrantFiled: August 29, 2014Date of Patent: August 27, 2019Assignee: QUALCOMM IncorporatedInventors: Ahmed Kamel Sadek, Mehmet Yavuz
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Patent number: 10390231Abstract: A dynamic spectrum arbitrage (DSA) system includes a plurality of fixed wireless devices, a home eNodeB gateway (HGW) coupled to each of the plurality of fixed wireless devices, a dynamic spectrum controller (DSC) coupled to the HGW, and a dynamic spectrum policy controller (DPC) coupled to the DSC and a plurality of other DSCs. Each of the fixed wireless devices may be configured to use an enhanced location based service (eLBS) to dynamically determine its location (latitude, longitude and altitude) and the locations of other fixed wireless devices, and use the location information to determine whether the respective fixed wireless device may be included in a telecommunication resource lease. The fixed wireless devices may also monitor network conditions, generate congestion reports based on a result of the monitoring, and send the generated congestion reports to the HGW.Type: GrantFiled: March 21, 2017Date of Patent: August 20, 2019Assignee: Rivada Networks, LLCInventors: Clint Smith, Purnima Surampudi
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Method and apparatus for analyzing signal delay time based on controller area network burst analysis
Patent number: 10367709Abstract: A method and apparatus for analyzing a signal delay time based on controller area network (CAN) burst are disclosed. An apparatus for analyzing a signal delay time, connected to a controller area network (CAN) bus includes a measuring device configured to determine a transmission start time based on a receiving time point of a CAN signal and to determine a receiving time interval between the CAN signals that are continuously received, a fixer configured to fix a burst period corresponding to CAN signals with the determined receiving time interval less than a predetermined value, a selector configured to select an analysis target CAN signal in the fixed burst period, and a determiner configured to determine a maximum transmission delay time ‘a’ corresponding to the selected CAN signal.Type: GrantFiled: September 26, 2017Date of Patent: July 30, 2019Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Chung Hi Lee, Woo Sub Kim, Jeong Hwan Kim, Yong Woon Cho, Jeong Chan Kim, Myung Hyun Koo -
Patent number: 10356733Abstract: Aspects of the disclosure relate to distributed joint access of an unlicensed sidelink channel Each sidelink device may perform independent and asynchronous listen before talk (LBT) of the unlicensed sidelink channel with a respective back-off timer value. The first sidelink device to complete back-off may transmit a joint access synchronization (JAS) signal indicating a duration of time that the unlicensed sidelink channel may be accessed by sidelink devices. Synchronized access sharing of the unlicensed sidelink channel across different active sidelinks may then be achieved through distributed handshake signaling.Type: GrantFiled: February 17, 2017Date of Patent: July 16, 2019Assignee: QUALCOMM IncorporatedInventors: Piyush Gupta, Junyi Li, Chong Li
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Patent number: 10356819Abstract: Disclosed herein are system, method, and computer program product embodiments for enabling a spatial reuse opportunity at a high efficiency (HE) station and a network allocation vector (NAV) reset capability at a legacy station using a Request to Send and/or Clear to Send (RTS and/or CTS) frame. For example, the method can include receiving a RTS frame with a redefined field that specifies spatial reuse information. The NAV can be set based on the RTS frame. The method can determine whether a second frame was received within a threshold time after a Short Interframe Space (SIFS). Finally, the method can reset the NAV based on whether the second frame was received within the threshold time.Type: GrantFiled: August 5, 2016Date of Patent: July 16, 2019Assignee: Apple Inc.Inventors: Guoqing Li, Yong Liu, Joonsuk Kim, Christiaan A. Hartman, Chiu Ngok E. Wong, Syed Aon Mujtaba, Matt Semersky, Su Khiong Yong
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Patent number: 10250688Abstract: The present invention concerns a method and a device for transmitting sensor data in a wireless network. The network is based on a shared transmission channel. Access to the shared transmission channel is scheduled by the master node. The slave node comprises an acquisition device producing said data. The method comprises on the slave node: obtaining a request for acquiring data from the master node; estimating the value of a time information representative of a delay for the acquisition device to acquire a block of data ready for transmission; sending a message to the master node comprising the estimated time information; receiving an authorization of transmission from the master node, said authorization of transmission being scheduled at a time depending on the estimated time information; and transmitting a block of data to the master node after said reception according to the received authorization.Type: GrantFiled: June 1, 2015Date of Patent: April 2, 2019Assignee: Canon Kabushiki KaishaInventors: Yacine El Kolli, Patrice Nezou
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Patent number: 10243828Abstract: A system, computer-implemented method and computer program performs heartbeat messaging for managing connections for data communications. In one example method, an indication of a problem associated with a connection for data communication in a computing system or network is received. In response to receiving the indication, a heartbeat message is sent over the connection. The method monitors for a heartbeat response to the heartbeat message within a predefined heartbeat time interval. If a heartbeat response is received within the predefined heartbeat time interval, the method determines that the indication of a problem associated with the connection is invalid. If a heartbeat response is not received within the predefined heartbeat time interval, the method determines that the indication of a problem associated with the connection is valid.Type: GrantFiled: October 17, 2016Date of Patent: March 26, 2019Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Michael D. Brooks, Alan Hollingshead, Julian C. Horn, Philip I. Wakelin
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Patent number: 10236984Abstract: A bi-directional optical transceiver includes multiple single mode optical ports and a multi-mode optical port. A multi-mode optical combiner combines single mode optical signals received at the single mode optical ports into a multi-mode optical signal at the multi-mode optical port. Each single mode optical signal has a distinct optical mode that does not interfere with the optical mode of the other single mode optical signals. A photo detector detects a total optical power of the plurality of single mode optical signals in the multi-mode optical signal. An amplifier is coupled to receive an output of the photo detector.Type: GrantFiled: July 28, 2017Date of Patent: March 19, 2019Assignee: ARRIS Enterprises LLCInventors: Venkatesh G. Mutalik, Marcel F. Schemmann
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Patent number: 10194466Abstract: Management of shared transmission resources is disclosed for multiple radio access networks (RANs) sharing access to a finite number of transmission slots. Multiple permutations of slot assignments are configured in which each competing network is assigned a specific slot in each permutation. The sequence of permutations provides a fair distribution of spectrum access by the competing networks, such that in each permutation of the permutation sequence, networks assigned to lower priority slots may be assigned to higher priority slots in later permutations.Type: GrantFiled: October 20, 2014Date of Patent: January 29, 2019Assignee: QUALCOMM IncorporatedInventors: Peter Gaal, Naga Bhushan, Srinivas Yerramalli, Wanshi Chen, Aleksandar Damnjanovic, Tingfang Ji, Tao Luo, Durga Prasad Malladi, Yongbin Wei
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Patent number: 10187864Abstract: Methods, systems, and devices for wireless communication are described. A base station may establish a transmission gap between downlink (DL) and uplink (UL) transmissions on a shared radio frequency (RF) spectrum band using time division duplex (TDD). A length of the gap may be based at least in part on a maximum allowed length of a filler signal corresponding to a coverage area of the base station. To reserve the shared band, a user equipment (UE) may communicate the filler signal for a length of time that is based at least in part on the maximum allowed length and a geographic distance between the UE and the base station. UEs farther from the base station transmit the filler signal of shorter lengths before sending an UL transmission, so that the UL transmissions from different UEs arrive at the same time at the base station regardless of the geographic distance between the UEs.Type: GrantFiled: March 30, 2017Date of Patent: January 22, 2019Assignee: QUALCOMM IncorporatedInventors: Taesang Yoo, Juan Montojo, Jing Sun, Zhifei Fan
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Patent number: 10187307Abstract: A system and method for implementing transmission parameter control at a transmitting station is described. The exemplary system and method comprises querying a transmission parameter control module for a transmission schedule. The transmission schedule comprises at least one schedule entry defining a set of transmission parameter controls as they pertain to a destination address. At least one packet of data is then transmitted to the destination address according to the transmission parameters controls of at least one schedule entry from the transmission schedule. A system and method for selecting an antenna configuration corresponding to a next transmission of packet data is also disclosed.Type: GrantFiled: October 28, 2016Date of Patent: January 22, 2019Assignee: ARRIS Enterprises LLCInventors: William Kish, Victor Shtrom, John Chanak
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Patent number: 10172182Abstract: A method of operating a User Equipment, UE, in a wireless communication network. The UE is configured for Discontinuous Reception, DRX, operation with a DRX cycle having a DRX ON period in which the UE is in a DRX awake state and ready for reception and a DRX OFF period in which the UE is in a DRX sleep state. The UE determines whether an uplink packet to be transmitted is delay tolerant. The UE delays, when the uplink packet is regarded as delay tolerant, a request for an uplink transmission grant for the uplink packet until a DRX ON period of the UE. By delaying the request for an uplink transmission grant for a delay tolerant uplink packet until a DRX ON period of the UE, the UE does not have to wake up to listen to the response from the network during the DRX OFF period.Type: GrantFiled: November 7, 2013Date of Patent: January 1, 2019Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Vincent Huang, Mona Matti, Ying Sun
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Patent number: 10153825Abstract: A vehicle-mounted control device, which communicates with a vehicle-mounted node via a common bus and follows a communication protocol that the lower the priority of a data frame output from the vehicle-mounted node, the longer a waiting time, includes: an arbitration device that suspends transmission of the transmission target frame to the bus when the priority of a transmission target frame is lower than an output data frame from the vehicle-mounted node, and continues transmission of the transmission target frame to the bus when the priority of the transmission target frame is higher than the output data frame; and a change device that changes the priority of the transmission target frame to be the highest of all data frames when the transmission of the transmission target frame is suspended for a prescribed time or longer as a result of arbitration control by the arbitration device.Type: GrantFiled: February 6, 2015Date of Patent: December 11, 2018Assignee: DENSO CORPORATIONInventors: Tomoko Kodama, Takeshi Enosaki, Hiroto Tanaka
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Patent number: 10154436Abstract: A physical frame is constructed, the physical frame including a medium access control super-frame payload which in turn includes a plurality of medium access control frames. With respect to the constructed physical frame, virtual carrier sense information is set in the plurality of medium access control frame so that a result of carrier sense is identical to another by virtual carrier sense based on the plurality of medium access control frames in the medium access control super-frame payload. The physical frame in which the virtual carrier sense information has been set is transmitted to a destined communication apparatus.Type: GrantFiled: October 17, 2017Date of Patent: December 11, 2018Assignee: Kabushiki Kaisha ToshibaInventors: Masahiro Takagi, Yasuyuki Nishibayashi, Yoriko Utsunomiya
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Patent number: 10142765Abstract: Method and apparatus for sending and receiving data in a wireless machine to machine communication network comprising at least a gateway (2) and a plurality of nodes (4), implementing an hybrid Medium Access Control protocol to access the shared medium. In order to prevent collisions when sending data transmissions (26), nodes (4) request access to the medium with access request packets (25), and are informed by the gateway (2) if said access request packets (25) are received correctly or if a collision occurred. According to the feedback information (24) provided by the gateway (2), nodes (4) are organized in a distributed queuing system with separate queues collision resolutions and data transmissions (26). Time slots (19) with fixed length are used, divided into three separate subperiods for feedback information (24), access request packets (25) and data transmissions (26). The method and apparatus further implements channel hopping to reduce interferences from adjacent networks.Type: GrantFiled: May 31, 2013Date of Patent: November 27, 2018Inventors: Pere Tuset Peiró, Xavier Vilajosana Guillen
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Patent number: 10084678Abstract: A system, computer-implemented method and computer program performs heartbeat messaging for managing connections for data communications. In one example method, an indication of a problem associated with a connection for data communication in a computing system or network is received. In response to receiving the indication, a heartbeat message is sent over the connection. The method monitors for a heartbeat response to the heartbeat message within a predefined heartbeat time interval. If a heartbeat response is received within the predefined heartbeat time interval, the method determines that the indication of a problem associated with the connection is invalid. If a heartbeat response is not received within the predefined heartbeat time interval, the method determines that the indication of a problem associated with the connection is valid.Type: GrantFiled: April 19, 2016Date of Patent: September 25, 2018Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Michael D. Brooks, Alan Hollingshead, Julian C. Horn, Philip I. Wakelin
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Patent number: 10057884Abstract: Various aspects related to various apparatuses, methods, and computer-readable medium are described herein. Some aspects may enable an apparatus to protect downlink (DL) communication(s). Some aspects may enable an apparatus to perform DL communication(s). Some aspects may enable an apparatus to communicate regarding uplink (UL) communication(s). Some aspects may enable an apparatus to perform operation(s) related to an allocation vector. Some aspects may enable an apparatus to perform operation(s) related to random access. Some aspects may enable an apparatus to perform UL communication(s). The written description and appended drawings provide detailed descriptions regarding these and many other aspects.Type: GrantFiled: July 14, 2016Date of Patent: August 21, 2018Inventor: Ali Atefi
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Patent number: 10051516Abstract: Systems and methods are disclosed that may ensure equal medium access between a first wireless device associated with a load based equipment (LBE) protocol and a number of second wireless devices associated with an enhanced distributed channel access (EDCA). The first wireless device may determine a level of contention associated with gaining access to a wireless medium, select a contention window size based, at least in part, on the determined level of contention, and select, for a medium access contention operation, a random back-off number from a range of numbers defined by the selected contention window size.Type: GrantFiled: January 13, 2016Date of Patent: August 14, 2018Assignee: QUALCOMM IncorporatedInventor: Maarten Menzo Wentink
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Patent number: 10028306Abstract: The invention relates to a communication device and a method of sending data over a communication network. The communication device includes a controller for accessing the network using contention type access mechanism based on computation of back-off values, and includes a plurality of traffic queues for serving data traffic at different priorities. The controller includes a plurality of back-off engines, each associated with one traffic queue and configured to compute a back-off value in accordance with the priority of the associated traffic queue. One or more back-off engine may be adjusted to prevent the back-off value of such back-off engine to reach zero. When an access to the network is obtained for the device. a traffic queue may be selected based on its associated back-off value, and data may be transmitted from the selected traffic queue.Type: GrantFiled: August 27, 2015Date of Patent: July 17, 2018Assignee: Canon Kabushiki KaishaInventors: Stéphane Baron, Romain Guignard, Pascal Viger
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Patent number: 10014970Abstract: Mitigation of inter-base station resynchronization loss in wireless networks including contention-based shared frequency spectrum is discussed. Aspects of such mitigation provide for base stations entering into an idle mode when a transmission opportunity occurs in a radio frame of the next resynchronization occasion. Additional aspects provide for the base station to signal a flexible listen before talk (LBT) frame length to the user equipment (UE), either with or without explicit signaling of the downlink-uplink division. Further aspects provide for the base station to signal a reset indication to UEs that will prompt the UEs to monitor for downlink channel reserving signals prior to the current LBT frame ending by the resynchronization occasion.Type: GrantFiled: February 11, 2016Date of Patent: July 3, 2018Assignee: QUALCOMM IncorporatedInventors: Xiaoxia Zhang, Vikas Jain, Srinivas Yerramalli, Tao Luo, Aleksandar Damnjanovic, Kiran Kumar Somasundaram
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Patent number: 9980290Abstract: In accordance with an embodiment a method for performing carrier sense multiple access with collision avoidance (CSMA-CA) by a station in a wireless communications network includes determining, in accordance with transmission information related to previous transmission attempts, a rate of success for each window section of a plurality of window sections, selecting a window section in accordance with at least the rate of success for each of the window sections and at least one predetermined threshold, and transmitting data after a back-off delay selected from within the selected window section.Type: GrantFiled: January 5, 2016Date of Patent: May 22, 2018Assignee: Huawei Technologies Co., LTD.Inventors: Meilu Lin, Jun Zhu, Sheng Sun, Yan Xin
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Patent number: 9974023Abstract: Some demonstrative embodiments include apparatuses, devices, systems and methods of a wakeup packet response. For example, an apparatus may include circuitry configured to cause a first wireless device to transmit a frame comprising mapping information to map a plurality of Modulation and Coding Schemes (MCS) to a respective plurality of preamble lengths; generate a wakeup packet comprising a preamble having a preamble length of the plurality of preamble lengths corresponding to an MCS of a non-wakeup transmission from the first wireless device; and transmit the wakeup packet to a second wireless device.Type: GrantFiled: September 25, 2015Date of Patent: May 15, 2018Assignee: INTEL CORPORATIONInventors: Alexander W. Min, Minyoung Park
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Patent number: 9967052Abstract: A network controller in a control plane and a method for selecting a connection for a wavelength channel from a plurality of connection candidates in a communications network. The network controller comprises a modeling module and a routing engine. The modeling module obtains information from a physical element in the network, related to an estimated time for the element to establish each connection candidate therethrough for the wavelength channel. The routing engine selects the connection taking into account the estimated time associated with each connection candidate.Type: GrantFiled: August 26, 2016Date of Patent: May 8, 2018Assignee: Huawei Technologies Co., Ltd.Inventors: Mohammad Mehdi Mansouri Rad, Hamid Mehrvar
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Patent number: 9942920Abstract: Computer readable media, methods, and apparatuses to determine whether to respond to a frame based on a network allocation vector. An apparatus of a station comprising memory and processing circuitry coupled to the memory is disclosed. The processing circuitry is configured to: decode a frame comprising a first duration and a first transmitter address, if the frame is a trigger frame or a multi-user request-to-send (MU-RTS) frame from a master station of a basic service set (BSS), respond to the trigger frame or the MU-RTS frame if the trigger frame or MU-RTS frame comprises a NAV indicator that indicates not to consider a network allocation vector (NAV). The indication may be an indication in a physical header or an indication in a media access control header.Type: GrantFiled: December 21, 2015Date of Patent: April 10, 2018Assignee: Intel IP CorporationInventors: Po-Kai Huang, Robert J. Stacey, Qinghua Li
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Patent number: 9940930Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for securing audio data. In one aspect, a method includes restricting access by the device to audio information detected by a microphone, receiving data indicating that the device is authorized to access audio information detected by the microphone during a limited period of time, and in response to receiving data indicating that the device is authorized to access audio information detected by the microphone during the limited period of time, providing audio information to the device. The method also includes monitoring audio information detected by the microphone during the limited period of time for the presence of a hotword and after the end of the limited period of time, restricting access by the device to audio information detected by the microphone.Type: GrantFiled: December 7, 2016Date of Patent: April 10, 2018Inventors: Lee Campbell, Samuel Kramer Beder
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Patent number: 9935806Abstract: Described herein are techniques related to data communications using a data packet having at least one frame with a robust preamble for use over media having a high degree of non-stationary noise (e.g., impulsive noise). The described techniques employ a preamble with a structure having multiple transitions between the preamble sections. Each transition indicates the start of the upcoming frame. With the techniques described herein, if noise damages the transitions between such sections beyond recognition, the receiver can still determine the frame start time from the one or more of the undamaged transitions. Thus, the robustness of communications via the noisy media is significantly increased. This Abstract is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.Type: GrantFiled: February 27, 2013Date of Patent: April 3, 2018Assignee: Lantiq Deutschland GmbHInventors: Vladimir Oksman, Joon Bae Kim
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Patent number: 9921998Abstract: Systems, methods and apparatus are described that offer improved performance of a sensor bus. A first command is transmitted to devices coupled to a serial bus operated in a first mode in accordance with a first protocol to cause the serial bus to be operated in a second mode. After communicating in accordance with a second protocol while the serial bus is operated in the second mode, a second command is transmitted to the plurality of devices in accordance with the first protocol to terminate the second mode. In the second mode, extra symbols inserted into a sequence of symbols transmitted on the serial bus prevent the occurrence of an unintended signaling state on the serial bus. Pulses transmitted on a wire of the serial bus in the second mode may have their duration limited such that a filter of a second device suppresses the limited-duration pulses.Type: GrantFiled: August 14, 2017Date of Patent: March 20, 2018Assignee: QUALCOMM IncorporatedInventors: Radu Pitigoi-Aron, Richard Dominic Wietfeldt, Douglas Wayne Hoffman
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Patent number: 9918343Abstract: The present invention relates to a wireless communication method for simultaneous data communication and a wireless communication terminal using the same, and more particularly, to a wireless communication method for suppressing interference between terminals and ensuring fairness when performing data simultaneous communication for spatial reuse of communication system and wireless communication terminal using the same. For this, provided are a wireless communication method and a wireless communication terminal using the same.Type: GrantFiled: August 10, 2017Date of Patent: March 13, 2018Assignee: Wilus Institute Of Standards And Technology Inc.Inventors: Juhyung Son, Jinsam Kwak, Geonjung Ko
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Patent number: 9917705Abstract: A device is provided for ascertaining the internal delay time of a CAN bus connection unit in a bus system including user stations exchanging messages via a bus, the transmission access to the bus for each message being assigned using an arbitration method according to CAN standard ISO 11898-1 to one user station which becomes the transmitter for this message. The device includes a unit for ascertaining the internal delay time using one of (i) a delay counter for ascertaining the delay time between a transmission signal and a reception signal, the delay counter being stopped if the reception signal has a dominant level and the counter content of the delay counter is greater than/equal to a predefined configuration value, or (ii) the maximum and minimum delay times of the bus connection unit.Type: GrantFiled: June 11, 2014Date of Patent: March 13, 2018Assignee: Robert Bosch GmbHInventor: Florian Hartwich
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Patent number: 9906320Abstract: An industrial network apparatus includes: a control data communicator configured to transmit control data in a priority transmission period that occurs periodically; and a message data communicator configured to determine whether or not to start transmission of message data in a non-priority transmission period depending on a required transmission time of message data and remaining time of the non-priority transmission period that is different from the priority transmission period, and to transmit the message data when determining to start transmission of the message data.Type: GrantFiled: May 27, 2014Date of Patent: February 27, 2018Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Mamoru Fukuda, Tatsuhiko Satou, Naoya Taki
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Patent number: 9904823Abstract: An antenna, a read/write unit, an radio frequency identification (RFID) arrangement and a method, wherein the antenna is configured to connect to an external antenna connection of the read/write unit via an antenna line, wherein the antenna includes a data memory having type information and/or having property information, the content of the data memory being readable by the read/write unit, and includes a measuring device for determining a value of the field strength or power of a radio frequency signal fed into the antenna by the read/write unit, and includes a device for informing the read/write unit about the value being reached or exceeded.Type: GrantFiled: September 20, 2013Date of Patent: February 27, 2018Assignee: Siemens AktiengesellschaftInventors: Dieter Horst, Lukas Walter Mayer, Leopold Resel, Martin Schiefer
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Patent number: 9872203Abstract: A physical frame is constructed, the physical frame including a medium access control super-frame payload which in turn includes a plurality of medium access control frames. With respect to the constructed physical frame, virtual carrier sense information is set in the plurality of medium access control frame so that a result of carrier sense is identical to another by virtual carrier sense based on the plurality of medium access control frames in the medium access control super-frame payload. The physical frame in which the virtual carrier sense information has been set is transmitted to a destined communication apparatus.Type: GrantFiled: January 13, 2017Date of Patent: January 16, 2018Assignee: Kabushiki Kaisha ToshibaInventors: Masahiro Takagi, Yasuyuki Nishibayashi, Yoriko Utsunomiya
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Patent number: 9866493Abstract: A network device may receive an activation instruction. The network device may provide network resources. The activation instruction may request the network device to activate a particular network resource that is deactivated. The activation instruction may be associated with a license that identifies the particular network resource and identifies a resource request of a user. The network device may configure, based on the activation instruction, a component of the network device to activate the particular network resource. The component, after being configured to activate the particular network resource, may allow data flows, received by the network device, to be provided towards a destination device using the particular network resource. The network device may receive a data flow and provide, by the component of the network device, the data flow towards the destination device using the particular network resource.Type: GrantFiled: March 29, 2013Date of Patent: January 9, 2018Assignee: Infinera CorporationInventors: Abhijeet D. Deore, Manish Chandra, Dharmendra Naik, Kiran Kumar Dintakurthi, Konstantin Saunichev, Biao Lu, Steven Joseph Hand, Sudhanshu Verma
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Patent number: 9860304Abstract: The subject matter of this specification can be embodied in, among other things, an actuator controller that includes a first communication node associated with a first communication address, a first communication port, a second communication port associated with a second communication address, and a router. The router is responsive to messages received at the first communication port and the second communication port to route a first message received at the first communication port and including the first communication address to the first communication node, route a second message received at the first communication port and including the second communication address to the second communication port, and route a third message received at the second communication port and including the first communication address to the first communication node.Type: GrantFiled: January 21, 2014Date of Patent: January 2, 2018Assignee: Woodward, Inc.Inventor: Jacob A. de Bes
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Patent number: 9843492Abstract: Methods and systems are disclosed which can perform cable characterization at link-up and during in-service monitoring to provide the best data throughput. In some embodiments a plurality of frequency tones may be sent across a cable to a remote system. A plurality of return loss values associated with sending the plurality of frequency tones may then be measured and stored. Next, a crosstalk value across the cable may be computed. A quality value for the cable may then be determined based on at least the plurality of return loss values and the crosstalk value.Type: GrantFiled: April 15, 2015Date of Patent: December 12, 2017Assignee: Cisco Technology, Inc.Inventors: Amrik Singh Bains, Kenneth Christian Naumann, Samir Bouadjel
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Patent number: 9781567Abstract: One disclosure of the present specification provides a method for performing a proximity service (ProSe). The method may be performed by a user equipment (UE) and comprise: performing, by the UE configured with a primary cell (Pcell) and a secondary cell (Scell), a switching between the ProSe and a cellular service with at least one of the Pcell and the Scell; transceiving a ProSe discovery signal with at least one or more adjacent UEs after performing a switching from the cellular service to the ProSe service; and transceiving a signal with the at least one of the Pcell and the Scell after performing a switching from the ProSe service to the cellular service. Here, the UE is allowed an interruption of up to one subframe that is N subframes before and after an uplink (UL) subframe configured for transmitting the ProSe discovery signal.Type: GrantFiled: September 30, 2016Date of Patent: October 3, 2017Assignee: LG ELECTRONICS INC.Inventors: Yoonoh Yang, Sangwook Lee, Suhwan Lim, Manyoung Jung, Jinyup Hwang
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Patent number: 9781750Abstract: Example embodiments of the present disclosure generally relate to automatic wireless mode switching in wireless communication devices and systems, and methods of automatic wireless mode switching. In one example embodiment, a wireless communication device generally includes a wireless communication interface configured to transmit data to a remote device via wireless communication, and a controller configured to control a mode of operation of the wireless communication device and to automatically switch the mode of operation of the wireless communication device between at least a first mode of operation and a second mode of operation. The first mode of operation is one of a client mode of operation, an access point mode of operation, an ad hoc mode of operation, a dual mode operation and a tri-mode operation. The second mode of operation is one of a dual mode operation and a tri-mode operation.Type: GrantFiled: August 25, 2015Date of Patent: October 3, 2017Assignee: Laird Technologies, Inc.Inventors: Daniel B. Kephart, Jr., Joseph James Conley, James Martin Kalbfleisch, Kris A. Sidle
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Patent number: 9749818Abstract: Radio resources are dynamically allocated in a shared band communication system operating in direct mode (DMO). The communication system includes terminals organized in groups. Each group is allocated a resource from a number of resources available within the communication system. This process includes allocating to the group at least one other further resource from the number of resources until an attempted access to the further resource from the group to which the further resource had been allocated has been detected.Type: GrantFiled: December 3, 2012Date of Patent: August 29, 2017Assignee: CASSIDIAN SASInventors: Laurent Pison, Christophe Gruet, Maxime Delorme
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Patent number: 9743423Abstract: A BS determines an amount of resource overloading for a contention transmission unit (CTU) access region associated with a grant-free uplink transmission scheme in a multiple access system. The BS determines a modulation and coding scheme (MCS) limit indicating a maximum MCS level for the CTU access region. The BS sends the MCS limit to a plurality of user equipments (UEs) associated with the first CTU access region. A UE receives from the base station the MCS limit and determines a first MCS index within the MCS limit for a first uplink transmission. The UE sends the first uplink transmission to the base station using a CTU in the CTU access region. The first uplink transmission includes user data and the first MCS index determined at the first UE.Type: GrantFiled: July 27, 2015Date of Patent: August 22, 2017Assignee: Futurewei Technologies, Inc.Inventors: Bin Liu, Richard Stirling-Gallacher, Jian Wang
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Patent number: 9743299Abstract: As disclosed herein, a method, executed by a computer, for analyzing a performance metric includes distributing link connection information for a network to each node in the network, pairing each node with another node in the network to provide paired nodes, testing a performance metric for the paired nodes, and generating a performance report for the network. The method may further include receiving link connection information for the network. The method may further include constructing a connectivity graph based on the received link connection information. The method can be used to test link performance within non-homogeneous networks. A computer system product and a computer program product corresponding to the method are also disclosed herein.Type: GrantFiled: December 22, 2014Date of Patent: August 22, 2017Assignee: International Business Machines CorporationInventors: William T. Boyd, Georgy A. Chochia, Donald G. Grice, John Lewars
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Patent number: 9734121Abstract: Systems, methods and apparatus are described that offer improved performance of a sensor bus. A first command is transmitted to devices coupled to a serial bus operated in a first mode in accordance with a first protocol to cause the serial bus to be operated in a second mode. After communicating in accordance with a second protocol while the serial bus is operated in the second mode, a second command is transmitted to the plurality of devices in accordance with the first protocol to terminate the second mode. In the second mode, extra symbols inserted into a sequence of symbols transmitted on the serial bus prevent the occurrence of an unintended signaling state on the serial bus. Pulses transmitted on a wire of the serial bus in the second mode may have their duration limited such that a filter of a second device suppresses the limited-duration pulses.Type: GrantFiled: April 23, 2015Date of Patent: August 15, 2017Assignee: QUALCOMM IncorporatedInventors: Radu Pitigoi-Aron, Richard Dominic Wietfeldt, Douglas Wayne Hoffman