Using Time Division Multiplexing Patents (Class 370/314)
  • Patent number: 11177829
    Abstract: A bit interleaver, a bit-interleaved coded modulation (BICM) device and a bit interleaving method are disclosed herein. The bit interleaver includes a first memory, a processor, and a second memory. The first memory stores a low-density parity check (LDPC) codeword having a length of 16200 and a code rate of 3/15. The processor generates an interleaved codeword by interleaving the LDPC codeword on a bit group basis. The size of the bit group corresponds to a parallel factor of the LDPC codeword. The second memory provides the interleaved codeword to a modulator for 64-symbol mapping.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: November 16, 2021
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung-Ik Park, Sun-Hyoung Kwon, Bo-Mi Lim, Jae-Young Lee, Heung-Mook Kim, Nam-Ho Hur
  • Patent number: 11108894
    Abstract: A masked packet checksum is utilized to provide error detection and/or error correction for only discrete portions of a packet, to the exclusion of other portions, thereby avoiding retransmission if transmission errors appear only in portions excluded by the masked packet checksum. A bitmask identifies packet portions whose data is to be protected with error detection and/or error correction schemes, packet portions whose data is to be excluded from such error detection and/or error correction schemes, or combinations thereof. A bitmask can be a per-packet specification, incorporated into one or more fields of individual packets, or a single bitmask can apply equally to multiple packets, which can be delineated in numerous ways, and can be separately transmitted or derived. Bitmasks can be generated at higher layers with lower layer mechanisms deactivated, or can be generated lower layers based upon data passed down.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: August 31, 2021
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Adrian Michael Caulfield, Michael Konstantinos Papamichael
  • Patent number: 11012996
    Abstract: Embodiments herein relate to a method performed by a transmitting device for handling communication of data towards a receiving device in a wireless communications network. The transmitting device schedules a data transmission of a data burst in at least one sub-slot of a first slot, and in a second slot, wherein the at least one sub-slot differs in time length compared to the second slot. The transmitting device further transmits at least part of the at least part of the data transmission as scheduled by scrambling the data transmission independent of a transmission time of the at least part of the data transmission.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: May 18, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Reem Karaki, Peter Alriksson, Jung-Fu Cheng, Gen Li, Amitav Mukherjee
  • Patent number: 10992514
    Abstract: Systems and methods for synchronizing a network of moving things. As non-limiting examples, various aspects of this disclosure provide systems and methods for providing synchronization for nodes (e.g., Mobile APs, etc.) in a moving network, for example in which sources of synchronization information may dynamically change.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: April 27, 2021
    Assignee: VENIAM, INC.
    Inventor: Carlos Ameixiera
  • Patent number: 10819585
    Abstract: A network device that determines RACH root sequences for AP devices within a given market. The network device can utilize a specialized graph coloring process or algorithm that has been adapted to, e.g., ensure that no two neighboring AP devices share the same RACH root sequences, provided certain additional constraints not found in graph coloring theory are met. For example, AP devices can have multiple RACH root sequence, whereas in traditional graph coloring problems, each vertex typically has only one color.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: October 27, 2020
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Yuning Yang, Wenjie Zhao
  • Patent number: 10819371
    Abstract: A modulator and a modulation method using a non-uniform 16-symbol signal constellation are disclosed. The modulator includes a memory and a processor. The memory receives a codeword corresponding to a low-density parity check (LDPC) code having a code rate of 3/15. The processor maps the codeword to 16 symbols of the non-uniform 16-symbol signal constellation on a 4-bit basis.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: October 27, 2020
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung-Ik Park, Sun-Hyoung Kwon, Jae-Young Lee, Heung-Mook Kim, Nam-Ho Hur
  • Patent number: 10797822
    Abstract: A modulator and a modulation method using a non-uniform 16-symbol signal constellation are disclosed. The modulator includes a memory and a processor. The memory receives a codeword corresponding to a low-density parity check (LDPC) code having a code rate of 2/15. The processor maps the codeword to 16 symbols of the non-uniform 16-symbol signal constellation on a 4-bit basis.
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: October 6, 2020
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung-Ik Park, Sun-Hyoung Kwon, Jae-Young Lee, Heung-Mook Kim, Nam-Ho Hur
  • Patent number: 10719389
    Abstract: A method of operating a storage controller is provided. The method includes determining encoded data to be written to a storage media by applying at least an initial encoding comprising a first error correcting code type and a subsequent encoding comprising a second error correcting code type. The method further includes writing the encoded data to the storage media, and responsive to reading the encoded data from the storage media, processing the encoded data into primary decoded data using one or more primary decoders employing the second error correcting code type and detecting when data errors arise in the decoded data. The method also includes based at least on detecting one or more data errors in the decoded data, processing the encoded data into secondary decoded data using one or more secondary decoders employing the first error correcting code type.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: July 21, 2020
    Assignee: Burlywood, Inc.
    Inventors: David Christopher Pruett, Christopher Bergman, Tod Roland Earhart
  • Patent number: 10623021
    Abstract: A modulator and a modulation method using a non-uniform 16-symbol signal constellation are disclosed. The modulator includes a memory and a processor. The memory receives a codeword corresponding to a low-density parity check (LDPC) code having a code rate of 4/15. The processor maps the codeword to 16 symbols of the non-uniform 16-symbol signal constellation on a 4-bit basis.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: April 14, 2020
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung-Ik Park, Sun-Hyoung Kwon, Jae-Young Lee, Heung-Mook Kim, Nam-Ho Hur
  • Patent number: 10534414
    Abstract: A portable computing system includes a portable computing device consisting essentially of a logical processor, a memory in communication with the logical processor with operating system software, a high speed, secure wireless communication module in communication with the logical processor, an integrated power source suitable to provide all power needs of the portable computing device and an integrated electric power generation mechanism in communication with the integrated power source to recharge the integrated power source. In addition a visual display is provided that has a power supply separate from the integrated power source of the portable computing device and a complementary wireless communication module, the portable visual display in communication with the high speed, secure wireless communication module through the complementary wireless communication module. The portable computing device and the visual display do not share a physical connection.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: January 14, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Shahrokh Daijavad, Alberto Valdes Garcia, Dinesh C Verma, Bodhisatwa Sadhu, Kai Schleupen
  • Patent number: 10530469
    Abstract: A method for communicating with a network by a terminal in a wireless communication system, wherein the terminal receives, from the network, signaling information representing a transmission period and a time offset for uplink transmission of a feedback information, and determines a time to transmit the feedback information based on the transmission period and the time offset. The terminal transmits the feedback information to the network based on the determined time.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: January 7, 2020
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Yu-Suk Yun, Soon-Young Yoon, Hee-Won Kang, Jae-Heung Yeom, Sang-Hyun Yang, Hoon Huh, Youn-Sun Kim, Ho-Kyu Choi, Jae-Sung Jang
  • Patent number: 10470205
    Abstract: The present disclosure pertains to a radio node for a Radio Access Network. The radio node is adapted for communicating in the Radio Access Network based on a scheduled slot aggregation comprising a plurality of slots, wherein a slot format of at least one slot of the slot aggregation is adapted based on a structure of the slot aggregation. The disclosure also pertains to related methods and devices.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: November 5, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Stefan Parkvall, Robert Baldemair
  • Patent number: 10432223
    Abstract: A modulator and a modulation method using a non-uniform 16-symbol signal constellation are disclosed. The modulator includes a memory and a processor. The memory receives a codeword corresponding to a low-density parity check (LDPC) code having a code rate of 4/15. The processor maps the codeword to 16 symbols of the non-uniform 16-symbol signal constellation on a 4-bit basis.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: October 1, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung-Ik Park, Sun-Hyoung Kwon, Jae-Young Lee, Heung-Mook Kim, Nam-Ho Hur
  • Patent number: 10396820
    Abstract: A modulator and a modulation method using a non-uniform 16-symbol signal constellation are disclosed. The modulator includes a memory and a processor. The memory receives a codeword corresponding to a low-density parity check (LDPC) code having a code rate of 3/15. The processor maps the codeword to 16 symbols of the non-uniform 16-symbol signal constellation on a 4-bit basis.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: August 27, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung-Ik Park, Sun-Hyoung Kwon, Jae-Young Lee, Heung-Mook Kim, Nam-Ho Hur
  • Patent number: 10320521
    Abstract: A modulator and a modulation method using a non-uniform 16-symbol signal constellation are disclosed. The modulator includes a memory and a processor. The memory receives a codeword corresponding to a low-density parity check (LDPC) code having a code rate of 2/15. The processor maps the codeword to 16 symbols of the non-uniform 16-symbol signal constellation on a 4-bit basis.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: June 11, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung-Ik Park, Sun-Hyoung Kwon, Jae-Young Lee, Heung-Mook Kim, Nam-Ho Hur
  • Patent number: 10278121
    Abstract: Blacklisting techniques for detected set event evaluation are described. In one embodiment, for example, user equipment (UE) may comprise at least one radio frequency (RF) transceiver, at least one RF antenna, and logic, at least a portion of which is in hardware, the logic to receive a measurement control message comprising a remotely-selected event evaluation blacklist (EEB) for a wireless communication frequency, determine whether a local EEB exists for the wireless communication frequency, and in response to a determination that a local EEB exists for the wireless communication frequency, replace the contents of the local EEB with the contents of the remotely-selected EEB. Other embodiments are described and claimed.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: April 30, 2019
    Assignee: INTEL IP CORPORATION
    Inventors: Hyung-Nam Choi, Michael Zitzmann, Jianjun Shen
  • Patent number: 10243837
    Abstract: A special data splitter and data combiner is shown for low latency emergency and data intensive services so that multiple broadband and wireless networks can be utilized along with public safety networks. Any data session, multimedia or non-multimedia, is split into multiple packet streams with each stream having an identifier wherein some packet streams are sent via the secure public safety network and other streams are sent via other networks of varying characteristics and performance, and a combiner at the other end receiving multiple streams from different networks combines them into a single session.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: March 26, 2019
    Assignee: Argela Yazilim ve Bilisim Teknolojileri San. ve Tic. A.S.
    Inventors: Mustafa Ergen, Seyhan Civanlar, Bulent Kaytaz
  • Patent number: 10236916
    Abstract: A method for determining an error vector for a data word according to a Reed-Muller Code includes determining the syndrome of the error vector according to the Reed-Muller Code, expanding the syndrome with zeroes to 1 bit length less than the length of the Reed-Muller Code, determining a code word of a Simplex Code of 1 bit length less than the length of the Reed-Muller Code whose difference to the expanded syndrome has a weight below a first threshold or equal to or above a second threshold, expanding the difference between the determined code word and the expanded syndrome by a zero, and outputting the expanded difference as error vector if its weight is below the first threshold or outputting the inverted expanded difference as error vector if the weight of the expanded difference is equal to or above the second threshold.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: March 19, 2019
    Assignee: Infineon Technologies AG
    Inventor: Rainer Goettfert
  • Patent number: 10231211
    Abstract: Provided is a method for transmitting paging information in a cellular system. An object of the method is transmitting paging information which can improve applicability of a limited radio resource by variably and flexibly setting up and mapping a transport channel and a physical channel in order to transmit information notifying start of downlink information from a base station to a terminal in a cellular system for packet transmission. The method includes the steps of: forming a paging channel (PCH) in a transport channel corresponding to generation of paging information; setting a paging indication channel (PICH) based on the paging information and forming the paging indication channel in a radio resource of a physical layer; and allocating the paging channel to the radio resource of the physical layer.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: March 12, 2019
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jae Heung Kim, Jung Im Kim, Kyoung Seok Lee, Soo Jung Jung, Seung Chan Bang, Byung Han Ryu
  • Patent number: 10123351
    Abstract: Embodiments may define traffic priorities to facilitate transmissions for wireless communications devices. Many embodiments comprise MAC sublayer logic to generate and transmit management frames such as beacon frames, association response frames, reassociation response frames, and probe response frames with an access category for low power consumption stations or sensor stations comprising a parameter record defining a contention window that is the earliest contention window to open amongst contention windows defined for the access categories for traffic. In some embodiments, the MAC sublayer logic may store the parameter record sets for access categories in memory, in logic, or in another manner that facilitates transmission of the frames. Some embodiments may receive and detect communications with frames comprising the access categories and store a parameter set for one or more of the access categories in a management information base.
    Type: Grant
    Filed: December 27, 2014
    Date of Patent: November 6, 2018
    Assignee: INTEL CORPORATION
    Inventors: Minyoung Park, Emily H. Qi
  • Patent number: 10028078
    Abstract: The present document relates to Near Field Communication (NFC). In particular, the present document relates to the routing of application related information in a system comprising multiple NFC Execution environments (NFCEE). A method for identifying an application on an NFC enabled device (200) comprising a plurality of NFC execution environments (204, 205, 206, 207) is described, wherein the application is hosted by one of the plurality of NFC execution environments (204, 205, 206, 207).
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: July 17, 2018
    Assignee: BlackBerry Limited
    Inventor: Dong Duc Hai Nguyen
  • Patent number: 9967319
    Abstract: Examples of the present disclosure describe security context enforcement in a multi-tenant environment. Security context data may be transmitted through an un-secure multi-tenant computational environment. The security context data is secured by protection layers that restrict untrusted resources from running tenant applications and restrict the ability of unauthorized tenants to access context information associated with a tenant. Data may be received and evaluated at a component of a multi-tenant environment. If the component is a trusted component and the security context data indicates that the tenant is authorized to execute an application using a specified context, the component may run a tenant application in a context associated with the security context data.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: May 8, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Alexandra Savelieva, Mohammad Usman, Daniel Eshner, Nuwan Ginige
  • Patent number: 9882621
    Abstract: Various embodiments are generally directed to an apparatus, method and other techniques to send an indication in a first frequency band of communication, the indication sent in a beacon message and to indicate a capability to communicate in a second frequency band of communication. Embodiments may include techniques to send beamforming information for the second frequency band of communication in the first frequency band of communication, and perform a beamforming operation for the second frequency band of communication using the beamforming information communicated in the first frequency band of communication.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: January 30, 2018
    Assignee: INTEL IP CORPORATION
    Inventors: Assaf Kasher, Solomon Trainin
  • Patent number: 9872196
    Abstract: A method and apparatus for dynamic uplink communication in a wireless communication system are disclosed herein. The method includes receiving, by the mobile station, a first channel from a first base station, wherein the first channel includes an indication, wherein the indication has one of two states, wherein the base station transmits on forward link channels including a pilot channel, traffic channels and the first channel. The method also includes receiving, by the mobile station, a communication from the first base station on a condition that the indication has a first state of the two states, and selecting, by the mobile station, a second base station based on received pilot signals from a plurality of base stations on a condition that the indication has a second state of the two states.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: January 16, 2018
    Assignee: IPR Licensing, Inc.
    Inventors: James A. Proctor, Jr., Dennis D. Ferguson
  • Patent number: 9735806
    Abstract: A modulator and a modulation method using a non-uniform 16-symbol signal constellation are disclosed. The modulator includes a memory and a processor. The memory receives a codeword corresponding to a low-density parity check (LDPC) code having a code rate of 4/15. The processor maps the codeword to 16 symbols of the non-uniform 16-symbol signal constellation on a 4-bit basis.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: August 15, 2017
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung-Ik Park, Sun-Hyoung Kwon, Jae-Young Lee, Heung-Mook Kim, Nam-Ho Hur
  • Patent number: 9716537
    Abstract: Techniques for performing automatic antenna sector-level sweep switching are described herein. According to an embodiment, an apparatus comprises a lookup table for storing a set of antenna configuration entries and a sector-level sweep (SLS) controller implemented in hardware that is communicatively coupled to the lookup table. The SLS sweep controller is operative to read an antenna configuration entry from the set of antenna configuration entries stored in the lookup table and output control signals to configure a set of one or more antennas based on the antenna configuration entry. The SLS controller is further operative to switch between different antenna configuration entries in the set of antenna configuration entries stored in the lookup table in response to a signal from a timing source thereby periodically changing the configuration of the set of one or more antennas.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: July 25, 2017
    Assignee: NITERO PTY LTD
    Inventors: Douglas A. Mammoser, Richard Steven Richmond, II, Sebastian Ahmed
  • Patent number: 9692542
    Abstract: A method for generating a channel code, in particular for a frame-header, wherein at least a code-word of the channel code is obtained by means of at least a concatenation of code-words of two constituent codes and such concatenation is performed on subsets of code-words of a first constituent code, having maximum length, with code-words of a second constituent code.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: June 27, 2017
    Assignee: POLITECNICO DI TORINO
    Inventors: Guido Montorsi, Farbod Kayhan
  • Patent number: 9681333
    Abstract: A wireless combination device is coupled to an antenna for communicating via a first wireless network. A second wireless transceiver configured for communication via said second wireless network. A packet aggregator is coupled to the first wireless transceiver configures a frame aggregated packet for at least a portion of activities on the first wireless network. The frame aggregated packet includes a plurality of data packets and a dummy packet or spoofing so that said frame aggregated packet is extended in time or indicates an extension sufficient to overlap a Tx time interval or Rx time interval for communications occurring over a second wireless network. The first wireless network and said second wireless network are overlapping networks.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: June 13, 2017
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Ariton E. Xhafa, Yanjun Sun, Ramanuja Vedantham
  • Patent number: 9594608
    Abstract: A system and method may generate executable models having message sending objects and message receiving objects. A message may include a fixed data payload, and the message may persist for only a determined time interval of a total execution or simulation time of model. Message queues may be established for the messages, and the queues may have attributes. The model may include a state-based portion having states and transitions. States may be configured to generate and send messages, and to receive and process messages. In addition, transitions may be guarded by particular messages. The system and method also may generate standalone code, such as source code, for the model. The standalone code may include code that establishes a message passing service to support the sending and receiving of messages.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: March 14, 2017
    Assignee: The MathWorks, Inc.
    Inventors: Hidayet Tunc Simsek, Vijaya Raghavan, Ramamurthy Mani
  • Patent number: 9520898
    Abstract: A modulator and a modulation method using a non-uniform 16-symbol signal constellation are disclosed. The modulator includes a memory and a processor. The memory receives a codeword corresponding to a low-density parity check (LDPC) code having a code rate of 3/15. The processor maps the codeword to 16 symbols of the non-uniform 16-symbol signal constellation on a 4-bit basis.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: December 13, 2016
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sung-Ik Park, Sun-Hyoung Kwon, Jae-Young Lee, Heung-Mook Kim, Nam-Ho Hur
  • Patent number: 9497728
    Abstract: System and methods of tracking a position of a mobile device with an electromagnetic signal-transmitting antenna include receiving electromagnetic signals from the transmitting antenna of the mobile device by a plurality of receiver antennae of a base station and by one or more receiver antennae of a relay station. The relay station transmits to the base station timing information associated with the electromagnetic signals received by the one or more receiver antennae of the relay station. The base station computes a position of the transmitting antenna of the mobile device based on timing information computed from the electromagnetic signals received by the plurality of receiver antennae of the base station and on the timing information received from the relay station.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: November 15, 2016
    Assignee: Position Imaging, Inc.
    Inventor: Edward L. Hill
  • Patent number: 9485715
    Abstract: Systems and methods are disclosed for facilitating coordination among member stations in an IBSS to allow members to remain in a power save mode of operation for extended periods of time without awakening to transmit or receive beacons at each scheduled TBTT. A power save initiator may establish a power save period during which all nodes in the network may enter a power save mode. Correspondingly, beacons may not be sent during the extended power save period and any traffic to be exchanged between members of the IBSS WLAN may be buffered for delivery after the extended power save period ends.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: November 1, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Imran Ansari, Leela Prasad Kella
  • Patent number: 9438486
    Abstract: An operation, administration, and maintenance data sink may receive an event data packet. The event data packet may be processed and transmitted based on instructions from a controller, wherein the controller may regulate the transmission of the processed event data packet based on network conditions.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: September 6, 2016
    Assignee: AT&T Intellectual Property I, L.P.
    Inventors: Venson M. Shaw, Jin He
  • Patent number: 9355398
    Abstract: An account is managed using information read from a dual frequency transponder. Information stored on the dual frequency transponder can be read by a NFC-enabled device and by a UHF RFID reader. The information links, corresponds, or otherwise provides access to account information stored at a remote server. For example, a NFC-enabled device can read the information from the dual frequency transponder and use that information to enable instant and on-the-spot recharging of a toll account. In addition, a UHF RFID toll reader can scan information from the dual frequency transponder and use that information to debit toll charges from the correct toll account. The dual frequency transponder can be embedded in a license plate and read using a reader placed in the road. Additionally, the transponder can be configured to function at the correct frequency only when a valid vehicle registration sticker is applied to the license plate.
    Type: Grant
    Filed: August 13, 2014
    Date of Patent: May 31, 2016
    Assignee: NEOLOGY, INC.
    Inventors: Francisco Martinez de Velasco Cortina, Joe Mullis, Manfred Rietzler, Sheshi Nyalamadugu, Rodolfo Monsalvo
  • Patent number: 9351301
    Abstract: Provided are methods by which multiple devices self-form a communication network and self-coordinate their access to communication media. In these methods, an individual node maintains its knowledge of other nodes in its vicinity and knowledge of those nodes' scheduled activities to an adequate degree of details. Such knowledge can be obtained by receiving control signals from nodes that are within the range of wireless communication. Examples of such knowledge include the identities of the nodes in the vicinity, the nodes' scheduled times of control message transmission and/or reception, the nodes' scheduled times of application data transmission and/or reception, etc. Such knowledge can be embodied in the form of a memory module of a computing device.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: May 24, 2016
    Inventors: Daniel Chonghwan Lee, Eric James Yun Loong Lee, Ehsan Seyedin
  • Patent number: 9282520
    Abstract: A network including a plurality of nodes each configured as transmitters, receivers, or transceivers. At least one of the nodes may be configured to wirelessly transmit a repeating isochronous signal for reception by one or more of the other nodes. The isochronous phase and/or frequency of the repeating isochronous transmission may be variably adjusted to reduce signal interference.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: March 8, 2016
    Assignee: Garmin Switzerland GmbH
    Inventors: Rodney D. Morris, James K. Rooney, Jeffrey Y. K. Fung
  • Patent number: 9226250
    Abstract: The present disclosure relates generally to systems and methods for timing synchronization. Uplink synchronization is a necessary component of a UE operating in a mobile, wireless network. Reliable uplink synchronization generally requires regular uplink transmission containing reference signals. A method is provided that defines a burst period for sending the reference signals, determines an interval between the reference signals, and sends a timing instruction message that includes the burst period and the determined interval. A second method is provided that receives the timing instruction message and sends the reference signals in accordance with the timing instruction.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: December 29, 2015
    Assignee: Blackberry Limited
    Inventors: Yongkang Jia, James Earl Womack, Zhijun Cai, Shouxing Qu
  • Patent number: 9197984
    Abstract: Methods and apparatus relating to a radio frequency identification device (RFID) with wide-area connectivity are provided. In an example, a real-time location (RTL) monitoring device is provided. The RTL monitoring device includes a first radio-frequency identification (RFID) tag and an RFID interrogator configured to interrogate the first RFID tag and a second RFID tag. A long-range wireless transceiver is coupled to the RFID interrogator, and configured to communicate RFID data. The first RFID tag, the RFID interrogator, and the long-range wireless transceiver can be collocated in an enclosure separate from the second RFID tag. The RTL monitoring device is configured to aggregate a plurality of responses from the first and second RFID tags, and to communicate the aggregated RFID data with a second device, such as a satellite, a base station, and/or an eNodeB device.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: November 24, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Jeffrey R. Kaufman, Julian Durand, Daniel Obodovski, Michael E. Akiki
  • Patent number: 9176213
    Abstract: A method and system for providing adaptive coded modulation in LEO satellite communication system is provided. The received power signal at the receiver is predicted by the LEO satellite transmitter without using channel feedback from the receiver. The receiver rapidly detects changes in transmission rate and changes its demodulation rate in tandem with the LEO satellite. Certain conditions that vary slowly, such as local weather and ground moisture level, are provided to the transmitter from the receiver at a much slower rate than that used in normal data communications.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: November 3, 2015
    Assignee: Northrop Grumman Systems Corporation
    Inventors: Daniel N. Liu, Michael P. Fitz, Xiaofen Chen
  • Patent number: 9060369
    Abstract: An approach is provided for minimizing co-channel interference in a communication system is disclosed. Non-header portions of frames, which are transmitted over the communication system, are scrambled according to respective different scrambling sequences. The above arrangement is particularly suited to a digital satellite broadcast and interactive system.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: June 16, 2015
    Assignee: DTVG Licensing, Inc.
    Inventors: Feng-Wen Sun, Lakshmi Iyer, Jr.
  • Patent number: 9001641
    Abstract: A wireless communication receiver including a serial to parallel converter receiving an radio frequency signal, a fast Fourier transform device connected to said serial to parallel converter converting NFFT corresponding serial signals into a frequency domain; an EZC root sequence unit generating a set of root sequence signals; an element-by-element multiply unit forming a set of products including a product of each of said frequency domain signals from said fast Fourier transform device and a corresponding root sequence signal, an NSRS-length IDFT unit performing a group cyclic-shift de-multiplexing of the products and a discrete Fourier transform unit converting connected cyclic shift de-multiplexing signals back to frequency-domain.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: April 7, 2015
    Assignee: Texas Instruments Incorporated
    Inventors: Pierre Bertrand, Anthony Ekpenyong
  • Patent number: 9001799
    Abstract: A method of transmitting a signal from a base station to a user equipment in a multi-node system comprises down-link-transmitting a signal at a first zone of a radio frame by using centralized antennas (CAs); and downlink-transmitting a signal at a second zone used for a backhaul link of a relay in the radio frame by using distributed nodes, wherein the first zone and the second zone are multiplexed by time division.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: April 7, 2015
    Assignee: LG Electronics Inc.
    Inventors: Jin Young Chun, Ji Won Kang, Seung Hyun Kang, Ja Ho Koo, Bin Chul Ihm, Moon Il Lee
  • Patent number: 9001711
    Abstract: There are disclosed a method of and system and apparatus for performing an uplink feedback, applicable to a dynamic sub-frame system, so as to avoid collision of ACK/NACK resources between a non-dynamic system and a dynamic system from occurring.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: April 7, 2015
    Assignee: China Academy of Telecommunications Technology
    Inventors: Jing Xu, Xueming Pan, Zukang Shen, Yanan Lin, Xuejuan Gao
  • Patent number: 8964623
    Abstract: The present invention relates to a wireless communication system, and provides a method and an apparatus for transmitting a downlink reference signal in the wireless communication system. The method for enabling a base station to transmit the reference signal to a terminal using layers of 8 or less in accordance with one embodiment of the present invention comprises the steps of: transmitting data for the layers of 8 or less through a data domain of a downlink sub frame; and transmitting a reference signal for the layers of 8 or less on a fixed OFDM symbol of the downlink sub frame, wherein the reference signal is a DRS (Dedicated Reference Signal) which demodulates the data for the layers of 8 or less, and the reference signal for the layers of 8 or less is separated into 1st and 2nd groups, and reference signals of the 1st and 2nd groups can be multiplexed in a CDM (Code Division Multiplexing) method on one resource element, respectively.
    Type: Grant
    Filed: April 12, 2010
    Date of Patent: February 24, 2015
    Assignee: LG Electronics Inc.
    Inventors: Hyun Soo Ko, Bin Chul Ihm, Sung Ho Park, Young Seob Lee, Seung Hyun Kang, Ja Ho Koo, Su Nam Kim, Wook Bong Lee, Jin Young Chun
  • Patent number: 8954107
    Abstract: A method, apparatus, and system for efficiently reporting Power Headroom (PH) for optimizing uplink coverage are provided. A method in which user equipment reports power headroom in a mobile communication system includes receiving Power Headroom Report (PHR) configuration information including a PH threshold value from a first base station, determining whether to perform a PHR trigger by comparing the PH value, which indicates the available transmission power of the user equipment, with the PH threshold value, and, when the PH value is less than the PH threshold value, transmitting, to the first base station, PHR-related report information including information corresponding to an influence caused by the scheduling of the first base station.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: February 10, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-Bum Kim, Soeng-Hun Kim, Kyeong-In Jeong
  • Patent number: 8942201
    Abstract: A method and apparatus are disclosed for increasing the speed with which a number of stations associated with an IBSS network may be synchronized and/or for reducing the number of beacon frame collisions in the IBSS network. For at least some embodiments, the synchronization speed may be increased by allowing STAs having faster clock speeds to broadcast beacon frames more frequently than STAs having slower clock speeds.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: January 27, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Srinivasa Kumar Duvvuri, Sandip HomChaudhuri, BadriSrinivasan Sampathkumar, Arunkumar Jayaraman, Ashish Kumar Shukla, Rajkumar Rajkumar Samuel, James Simon Cho
  • Patent number: 8934470
    Abstract: Methods, systems, and devices are described for managing wireless communications in a machine-to-machine (M2M) wireless Wide Area Network (WAN). A physical layer frame is generated. The frame being used for wireless M2M communications on a forward link in the M2M wireless WAN. A paging slot is generated in the frame for an M2M device in the M2M wireless WAN. A determination is made as to whether the paging slot includes available capacity. System information is inserted in the paging slot upon determining the paging slot includes available capacity.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: January 13, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Bin Tian, Alok K. Gupta
  • Patent number: 8923347
    Abstract: In a data transmission system, a first node receives at least two sets of input data signals including at least two signals being based on different synchronization sources. The first node extracts a respective clock signal representing the embedded clock signals from the sources, samples and formats these signals for transmission according to a TDM structure. The TDM formatted signals are transmitted as at least one bit stream over a transmission medium to at least one second node, where the bit stream is demultiplexed into at least two sets of output data signals respective demultiplexed clock signals representing the sampled clock signals. A jitter attenuating mechanism reduces an amount of frequency jitter to below a predefined level to produce a respective clock signal having a synchronization quality superior to that of the demultiplexed clock signals. An interface module recombines each data signal with its associated clock signal.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: December 30, 2014
    Assignee: Transmode Systems AB
    Inventor: Gunnar Forsberg
  • Patent number: 8908659
    Abstract: Methods and apparatus of slot time synchronization for coexistence of 5 MHz, 10 MHz, and 20 MHz systems in TV white space are provided. The methods and apparatus extend concepts used in traditional 802.11 applications in the MAC layer so that networks that overlap in frequency and space can have access opportunities to TV white space channels. Several passive mechanisms are described which use bits of traditional 802.11 MAC Management Protocol Data Units to receive information related to the slot time of other overlapped networks. An active approach is described that uses measurements from a radio resource measurement service to adjust the slot time of stations in a network to that of the lowest bandwidth overlapped network in frequency and space.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: December 9, 2014
    Assignee: Thomson Licensing
    Inventors: Hou-Shin Chen, Wen Gao
  • Patent number: 8891504
    Abstract: An arbitration mechanism provides quality of service guarantees for time-sensitive signals sharing a local area computer network with non-time-sensitive traffic. Device adapters are placed at all access points to an Ethernet network. The device adapters limit admission rates and control the timing of all packets entering the network. By doing so, collisions are eliminated for timesensitive traffic, thereby guaranteeing timely delivery. A common time reference is established for the device adapters. The time reference includes a frame with a plurality of phases. Each of the phases is assigned to a device adapter. Each device adapter is allowed to transmit packets of data onto the network only during the phase assigned thereto. The length of the phases may be modified in accordance with the number of packets to be transmitted by a particular device adapter. A master device adapter may be appointed to synchronize each of the device adapters.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: November 18, 2014
    Assignee: Great Links G.B. Limited Liability Company
    Inventors: Ronald D. Fellman, Rene L. Cruz, Douglas A. Palmer, Bart Schade