Combining Or Distributing Information Via Code Word Channels Patents (Class 370/479)
  • Patent number: 11002829
    Abstract: Methods and apparatuses pertaining to radar interference mitigation are described. A processor associated with an apparatus may generate a plurality of wave frames such that one or more aspects of the plurality of wave frames vary from one wave frame to another wave frame of the plurality of wave frames. Each of the plurality of wave frames may respectively include a plurality of chirps. A wireless transmitter associated with the apparatus may transmit the plurality of wave frames. A wireless receiver associated with the apparatus may receive one or more reflected waves comprising at least a portion of one or more of the wave frames reflected by an object. The processor may determine a distance between the object and the apparatus, a speed of the objet, or both, based on an analysis of the one or more reflected waves.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: May 11, 2021
    Inventors: Chih-Ming Hung, Khurram Muhammad
  • Patent number: 11005525
    Abstract: A transmitter stores mappings of distinct values of an information signal to corresponding ones of distinct combinations of K chirps taken from M chirps that are different from each other, such that each of the distinct values is mapped to a corresponding one of the distinct combinations of K chirps. The transmitter receives a distinct value among the distinct values of the information signal. The transmitter selects, based on the mappings, a distinct combination of K chirps among the distinct combinations of K chirps that is mapped to the distinct value. The transmitter sums the K chirps of the distinct combination of K chirps to produce a symbol that represents the distinct value. The transmitter modulates the symbol to produce a modulated symbol, and transmits the modulated symbol. A receiver receives a modulated symbol that conveys a distinct value, and recovers the distinct value using stored mappings.
    Type: Grant
    Filed: July 28, 2020
    Date of Patent: May 11, 2021
    Assignee: CISCO SYSTEMS CANADA CO.
    Inventors: Muhammad Hanif, Ha Hoang Nguyen
  • Patent number: 10778282
    Abstract: A transmitter stores mappings of distinct values of an information signal to corresponding ones of distinct combinations of K chirps taken from M chirps that are different from each other, such that each of the distinct values is mapped to a corresponding one of the distinct combinations of K chirps. The transmitter receives a distinct value among the distinct values of the information signal. The transmitter selects, based on the mappings, a distinct combination of K chirps among the distinct combinations of K chirps that is mapped to the distinct value. The transmitter sums the K chirps of the distinct combination of K chirps to produce a symbol that represents the distinct value. The transmitter modulates the symbol to produce a modulated symbol, and transmits the modulated symbol. A receiver receives a modulated symbol that conveys a distinct value, and recovers the distinct value using stored mappings.
    Type: Grant
    Filed: July 24, 2019
    Date of Patent: September 15, 2020
    Inventors: Muhammad Hanif, Ha Hoang Nguyen
  • Patent number: 10757637
    Abstract: According to the present invention, the processing load required for a cell search can be reduced even if communication is carried out with a communication system that has a plurality of parameter sets that configure radio frames. A user terminal is provided which is configured to carry out communication with a communication system having a plurality of parameter sets that respectively configure radio frames, the user terminal including a receiving section configured to receive synchronization signals transmitted from the communication system, and a control section configured to control a cell search based on the received synchronization signals. A signal configuration of each synchronization signal transmitted from the communication system is the same, without depending on a parameter set that configures a radio frame.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: August 25, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Hiroki Harada, Satoshi Nagata
  • Patent number: 10601476
    Abstract: Aspects described herein relate to wireless communications. According to some aspects, a first base station may coordinate with a second base station to select beamforming codewords. The first base station may receive an index indicating beamforming codewords used by a second base station. The first base station may select a beamforming codeword for use in transmitting signals to a wireless device based on the beamforming codeword indicated by the second base station.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: March 24, 2020
    Assignee: Comcast Cable Communications, LLC
    Inventor: Esmael Hejazi Dinan
  • Patent number: 10594454
    Abstract: Embodiments of the present disclosure relate to a method and apparatus of transmitting a reference signal and a method and apparatus of receiving a reference signal. In one embodiment of the present disclosure, the method of transmitting a reference comprises receiving a reference signal configuration indication, wherein reference signal resources are divided into at least two reference signal groups, and the reference signal configuration indication indicates a reference signal configuration including a reference signal group configuration; and transmitting the reference signal using a reference signal sequence in a reference signal group as indicated by the reference signal group configuration, wherein the reference signal sequence can be multiplexed with another layer or another user in different reference signal groups.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: March 17, 2020
    Assignee: NEC CORPORATION
    Inventors: Chuangxin Jiang, Yukai Gao, Zhennian Sun, Gang Wang
  • Patent number: 10560175
    Abstract: This application provides a data transmission method and an apparatus. The method includes: obtaining, by user equipment, to-be-sent user data; performing, by the user equipment, channel encoding on the to-be-sent user data to obtain N sets of encoded data; performing, by the user equipment, codebook mapping on each of the N sets of encoded data by using a codebook, to obtain N sets of codebook-mapped data, where different sets of encoded data use codebooks that occupy mutually different non-zero physical REs, the non-zero physical RE means a non-zero waveform obtained after mapped data is mapped to a physical RE, and N is a positive integer greater than or equal to 2; and sending, by the user equipment, the N sets of codebook-mapped data to a base station.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: February 11, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yue Zhou, Hejia Luo, Lu Rong, Rong Li
  • Patent number: 10476727
    Abstract: Disclosed is a 5G or pre-5G communication system to be provided so as to support a data transmission rate higher than that of a 4G communication system such as long term evolution (LTE). According to the present disclosure, a method for transmitting a signal in a communication system supporting multi-user access comprises the steps of: transmitting, to a receiving device, information indicating a codebook formed on the basis of at least two signal constellations for sparse code multiple access (SCMA) transmissions; and transmitting signals on the basis of the codebook, wherein the at least two signal constellations are generated on the basis of energy values of symbols of a pre-given mother signal constellation and sizes of the symbols of the mother signal constellation.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: November 12, 2019
    Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute Of Science And Technology
    Inventors: Woo-Wan Wang, Hyeon-Cheol Park, Seung-Chan Lim, Sang-Wook Suh
  • Patent number: 10477555
    Abstract: Provided is a device including an acquisition unit to acquire that acquires information indicating a layer allocated to a terminal device among a plurality of layers that are subject to non-orthogonal multiplexing using a codebook and a reporting unit that reports the layer to the terminal device.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: November 12, 2019
    Assignee: SONY CORPORATION
    Inventor: Atsushi Yoshizawa
  • Patent number: 10461971
    Abstract: According to one embodiment, according to one embodiment, an IC card executing a command from a processing apparatus includes a communication unit and a processing unit. The communication unit transmits/receives data to/from the processing apparatus. Upon receiving, through the communication unit, a first command requesting transmission of data in a first frame not including a start code or an end code, the processing unit transmits data in the first frame through the communication unit.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: October 29, 2019
    Assignees: KABUSHIKI KAISHA TOSHIBA, Toshiba Infrastructure Systems & Solutions Corporation
    Inventor: Keisuke Uchida
  • Patent number: 10432370
    Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus may be a UE. The UE identifies properties associated with reference signals of a received payload. The properties associated with reference signals of the received payload may include a reference signal structure and/or a traffic to pilot ratio. The UE determines a payload structure based on the identified properties. Subsequently, the UE decodes the received payload based on the determined payload structure. The UE may receive mapping information indicating a mapping between possible properties associated with reference signals and possible payload structures. The UE may determine the payload structure further based on the received mapping information. The UE may receive the mapping information through a broadcast or RRC signaling.
    Type: Grant
    Filed: January 10, 2014
    Date of Patent: October 1, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Tao Luo, Durga Prasad Malladi, Yongbin Wei, Wanshi Chen, Aleksandar Damnjanovic
  • Patent number: 10425198
    Abstract: Systems and methods for DFT-S-SCMA (discrete Fourier Transform-spread-sparse code multiple access) are provided. Input bits are encoded with an SCMA encoder. The output is precoded with a IDFT (inverse DFT) to produce a precoded SCMA block. Multiple precoded SCMA blocks are combined at the input of a DFT. This is done in parallel for multiple sets of SCMA blocks at multiple DFTs. Then, the outputs of the DFTs are combined and OFDM modulated. This approach can be used to improve the PAPR (peak to average power ratio) at the output of the OFDM modulation.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: September 24, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Mohammadhadi Baligh, Alireza Bayesteh
  • Patent number: 10326565
    Abstract: Methods and apparatus as described herein for determining whether to transmit a signal to at least one receiver of a plurality of receivers with an orthogonal multiplexing technique while signals to a remainder of the plurality of receivers are simultaneously transmitted with a non-orthogonal multiplexing technique If it is determined that the signal should be transmitted to the at least one receiver with the orthogonal multiplexing technique, simultaneously transmitting the signal to the at least one receiver with the orthogonal multiplexing technique and the signals to the remainder of the plurality of receivers with the non-orthogonal multiplexing technique. Methods and apparatus are also described for decoding the signals on the receiving end.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: June 18, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Alireza Bayesteh, Mahmoud Taherzadeh Boroujeni
  • Patent number: 10284330
    Abstract: A data transmission method, device, and system to resolve a problem that encoding cannot be performed based on an incomplete subframe because a length of the incomplete subframe is unknown. A first device generates a first subframe and a second subframe according to first data, determines a redundancy version (RV) of the first subframe according to an RV of the second subframe, and sends M of N orthogonal frequency division multiplexing (OFDM) symbols of the first subframe and N OFDM symbols of the second subframe to a second device.
    Type: Grant
    Filed: April 3, 2015
    Date of Patent: May 7, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Jian Wang
  • Patent number: 10271242
    Abstract: A load distribution method and apparatus of a base station are disclosed. The method includes measuring load information associated with the BS; transmitting the measured load information to at least one adjacent BS; receiving load information from the at least one adjacent BS; generating a first cluster including the BS and the at least one adjacent BS; and executing a load distribution operation with respect to the first cluster, wherein at least one BS included in the first cluster is included in a second cluster.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: April 23, 2019
    Assignees: Samsung Electronics Co., Ltd, Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Sanghoon Lee, Beom Kwon, Seonghyun Kim, Jungshin Park, Hojae Lee
  • Patent number: 10255207
    Abstract: A system is configured to capture a set of interrupts and output the interrupts serially onto an interconnect. The interrupts, which are routed to a destination, may first be packetized such that additional information is associated with the interrupt within the packet.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: April 9, 2019
    Assignees: STMicroelectronics (Research & Development) Limited, STMicroelectronics (Grenoble 2) SAS
    Inventors: Davide Sarta, Ignazio Antonino Urzi
  • Patent number: 10250341
    Abstract: There are provided a monitoring apparatus, a wireless communication system, a failure factor deciding method and a program which enable a user to take an appropriate countermeasure for a failure factor which has occurred in a wireless communication apparatus which employs space diversity. The monitoring apparatus (1) includes an obtaining unit (12) and a deciding unit (14). The obtaining unit (12) obtains a history related to a received signal level of a first receiver (22) and a received signal level of a second receiver (24) in a predetermined period from a wireless communication apparatus (20) including the first receiver (22) and the second receiver (24). The deciding unit (14) decides a factor of a failure that has occurred in the wireless communication apparatus (20) based on the history.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: April 2, 2019
    Assignee: NEC CORPORATION
    Inventor: Yoshinori Kitahara
  • Patent number: 10218608
    Abstract: Various additional and alternative aspects are described herein. In some aspects, the present disclosure provides a method of communication by an apparatus. The method includes selecting one or more resources for transmitting data of a first data stream based on an acyclic graph. The selected resources conform to the acyclic graph comprising data streams at odd levels of the acyclic graph and resources at even levels of the acyclic graph. The acyclic graph includes edges between each level of the acyclic graph. The edges connect the resources allocated to each data stream. The method further includes transmitting the data of the first data stream on the selected one or more resources.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: February 26, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Seyong Park, Wei Zeng, Haitong Sun, Joseph Binamira Soriaga, Tingfang Ji
  • Patent number: 10034276
    Abstract: The present invention relates to the field of mobile communications, and provides a downlink data transmission method, a base station, and a user equipment. The method includes: assigning, by a base station, a first downlink data channel resource to N user equipments UEs, where N is an integer greater than 1; assigning, by the base station, a first downlink control channel resource to the N UEs; and sending, by the base station, first data on the first downlink data channel resource, and sending first scheduling control signaling on the first downlink control channel resource, where the first scheduling control signaling is used to notify the N UEs of the first downlink data channel resource, so that the N UEs receive the first data on the first downlink data channel resource.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: July 24, 2018
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Guanglin Han, Chen Chi
  • Patent number: 9826442
    Abstract: According to some aspects, a first base station employing a first beamforming codebook may receive a second beamforming codebook from a second base station. The first beamforming codebook may comprise a plurality of beamforming codewords associated with the first base station, and the second beamforming codebook may comprise a plurality of beamforming codewords associated with the second base station. The first base station may receive at least one message from the second base station indicating a subset of the plurality of beamforming codewords associated with the second base station. The first base station may select one or more first beamforming codewords from the first beamforming codebook based on the indicated subset of the plurality of codewords associated with the second base station. The first base station may transmit signals to at least one wireless device employing the one or more first beamforming codewords.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: November 21, 2017
    Assignee: Comcast Cable Communications, LLC
    Inventor: Esmael Hejazi Dinan
  • Patent number: 9814030
    Abstract: A method for transmitting a channel state information reference signal (CSI-RS) in a specific downlink subframe having an extended cyclic prefix (CP) in a wireless communication system according to an embodiment of the present invention includes: generating a CSI-RS sequence and mapping the CSI-RS sequence to CSI-RS complex-valued modulation symbols; and mapping the CSI-RS complex-valued modulation symbols to at least one pattern of a first CSI-RS pattern set composed of a plurality of CSI-RS patterns and a second CSI-RS pattern set composed of a plurality of CSI-RS patterns, the CSI-RS patterns being composed of REs to which CSI-RS complex-valued modulation symbols are mapped, wherein the second CSI-RS pattern set is available when 2 OFDM symbols are used for a physical downlink control channel in the downlink subframe or a specific downlink control information format is configured.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: November 7, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Hanjun Park, Kijun Kim, Jonghyun Park
  • Patent number: 9536078
    Abstract: In one aspect, an integrated circuit (IC) includes a secure router configured as a trust anchor, a non-volatile random access memory (RAM) direct memory access (DMA) channel coupled to the secure router, a first DMA coupled to the secure router and configured to receive data with a first classification and a second DMA coupled to the secure router and configured to receive data with a second classification. The IC also includes a secure boot/key controller coupled to the secure router and configured as a trust anchor to boot the IC securely and a processor coupled to the secure router and configured to encrypt data, to store protocols, to store instructions to detect malicious intrusions on the IC and to provide key management.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: January 3, 2017
    Assignee: Forcepoint Federal LLC
    Inventors: Laurence B. Finger, David E. Mussmann, Jason M. Fannin, Noel E. Johnson, Allen M. Schwartz
  • Patent number: 9226301
    Abstract: A wireless base station apparatus includes an interference report receiver configured to receive interference reports transmitted on a shared radio resource from a plurality of wireless terminals that are present in a plurality of adjacent cells that are adjacent to a target cell, the shared radio resource being comprised of a plurality of carriers and being shared between the plurality of adjacent cells, and an adaptive fractional frequency reuse controller configured to control adaptive fractional frequency reuse processing in a downlink of the target cell, based on the received interference reports showing a downlink reception quality, wherein the interference reports are transmitted using selected carriers from the plurality of carriers by the plurality of wireless terminals, based on the downlink reception quality.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: December 29, 2015
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Isamu Yoshii, Atsushi Sumasu, Tomohiro Imai, Naoya Yosoku, Hidenori Kayama
  • Patent number: 9191931
    Abstract: The present invention provides a method and an apparatus for the transmission of control signal in a radio communication system. The method includes the steps of processing first control information on the basis of a first resource index to create a first control signal, processing second control information on the basis of a second resource index to create a second control signal, and transmitting the first control signal and the second control signal.
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: November 17, 2015
    Assignee: LG Electronics Inc.
    Inventors: Seung Hee Han, Moon Il Lee, Yeong Hyeon Kwon, Hyun Soo Ko, Ja Ho Koo, Dong Cheol Kim, Jae Hoon Chung, Sung Ho Moon, Jin Sam Kwak, Min Seok Noh, Hyun Woo Lee
  • Patent number: 9184897
    Abstract: A method of transmitting data is described comprising selecting a transmission mode from at least a first and a second transmission mode, wherein according to the first transmission mode data is transmitted in at least two first time periods using first communication resources wherein the at least two first time periods are separated by a first time interval, wherein according to the second transmission mode data is transmitted in at least two second time periods using second communication resources wherein the at least two second time periods are separated by a second time interval, and wherein the first time interval is longer than the second and the first communication resources allow the transmission of a higher amount of data than the second communication resources; and transmitting data according to the selected transmission mode.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: November 10, 2015
    Assignee: Intel Mobile Communications GmbH
    Inventors: Martin Hans, Hyung-Nam Choi, Dan Dinescu
  • Patent number: 9179430
    Abstract: Presented herein are methods and systems for providing network access at a slave node based on a signal transmitted by a master BTS. In one example, a pseudorandom code (PN code) selection is described, in which each slave node has a known associated time offset and data is transmitted with a PN code advanced by the known time offset and the propagation delay. Using an example slave base station transceiver architecture (or just slave node for short), the “traditional” BSC can be removed from at least one base station (e.g., “slave nodes”) and a master base station may be configured to control the signal being transmitted from each slave node. Each slave node then may transmit and receive RF signals. The master BTS head end may receive signal portions from the slave nodes and mobile devices, and combine them for relay back into the network.
    Type: Grant
    Filed: January 18, 2012
    Date of Patent: November 3, 2015
    Assignee: EXTENET SYSTEMS, INC.
    Inventor: Tormod Larsen
  • Patent number: 9130808
    Abstract: A communication system and method using a Golay sequence, are provided. In the communication method, 2nd order Reed-Muller coding is performed on data to generate a codeword, and exponential modulation is performed on the codeword to generate a near Golay complementary sequence. Factors for generating the codeword are permutations of a 1st order Reed-Muller generator, and cosets and offsets of a 2nd order Reed-Muller code calculated based on the permutations of the 1st order Reed-Muller generator, etc.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: September 8, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Hee-kwan Lee
  • Patent number: 9036663
    Abstract: Aspects of the invention are directed to a transmit diversity method for use in a wireless terminal having a plurality of antennas and a wireless terminal configured to implement the method. The transmit diversity method includes using a different orthogonal sequence for each antenna, or group of antennas, for transmitting an uplink control channel from a wireless terminal to a base station. A first step of the method involves assigning at least one orthogonal sequence to one or more of the plurality of antennas, each of the plurality of antennas being assigned at least one orthogonal sequence. Once the orthogonal sequence is assigned, a further step involves scrambling a signal to be transmitted on the physical uplink control channel (PUCCH) using the at least one orthogonal sequence for each antenna thereby producing a scrambled PUCCH for transmission by each antenna. The scrambled PUCCH can then be transmitted on the plurality of antennas.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: May 19, 2015
    Assignee: RPX Clearinghouse LLC
    Inventors: Mohammadhadi Baligh, Masoud Ebrahimi Tazeh Mahalleh, Jianglei Ma, Hua Xu, Ming Jia, Amir Khandani
  • Patent number: 9020518
    Abstract: In a closed-loop wireless communication system, a codebook-based feedback mechanism is provided where each codeword indicates a particular profile to be used to provide a target performance measure (e.g., bit error rate or spectral efficiency) for the transmission channel. This may be accomplished by using a multi-stage quantization process to construct the codewords as a plurality of transmission parameters specifying a MIMO transmission scheme, precoding vector or matrix, power allocation in space/time/frequency, modulation and channel code.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: April 28, 2015
    Assignee: Apple Inc.
    Inventors: Kaibin Huang, Jayesh H. Kotecha
  • Patent number: 9001679
    Abstract: Methods, systems, and devices for supporting voice communications in a wireless communications system are provided. Some embodiments utilize multiple code channels to transmit the voice frames. These embodiments include parallel multi-code embodiments, offset multi-code embodiments, and multi-user multi-code embodiments. Some embodiments utilize flexible carrier bandwidths systems that may utilize portions of spectrum that may not be big enough to fit a normal bandwidth waveform. Some embodiments transmit and receive a subset of subframes of voice frames received over flexible bandwidth code channels. In some embodiments, a subset of subframes based on a flexible bandwidth scaling factor of one or more flexible bandwidth code channels is transmitted. The receiver may decode the voice frame based on the received subset of subframes. An outer loop power control set-point may be adjusted to provide a predetermined frame error rate based on the number of transmitted subframes.
    Type: Grant
    Filed: June 7, 2012
    Date of Patent: April 7, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Soumya Das, Ozgur Dural, Edwin C. Park, Bongyong Song, Samir Salib Soliman, Yuheng Huang
  • Patent number: 9001848
    Abstract: A code-division multiplexing (CDM) system utilized in multi-channel (MC) front-end integrated circuits to significantly reduce the power consumption of such systems. The CDM system extends data compression advantages to uncorrelated and weakly correlated MC signals through the introduction of a new Multi-Channel Signal Binning and Multiplexing (MCSBM) method and architecture. The method achieves significant reductions in power consumption in comparison to a conventional time-division multiplexing quantizer, while adding only a modest amount of overhead and complexity. Systems and methods permit architects to fabricate MC integrated circuits with ultra low power consumption and small chip area. Another embodiment relates to the system's compressor organizing samples of the input signal in such a way that the downstream analog-to-digital converter quantizes the higher variance samples with a higher resolution compared to the resolution it uses to quantize other samples with lower variance.
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: April 7, 2015
    Assignee: The Regents of the University of California
    Inventors: Fred Tzeng, Payam Heydari
  • Publication number: 20150092792
    Abstract: Disclosed are a method and a system for implementing synchronous parallel transmission over multiple channels. The method comprises: a sending end and a receiving end accessing an NoC through a sending port and a receiving port on the NoC, the sending port and the receiving port having a capability of simultaneously and parallely transmitting data; the sending end sending data to the sending port of the NoC, and the sending port encoding the received data into a bipolar data symbol and modulating the bipolar data symbol by using a Walsh code; then the NoC synchronously adding and combining modulated symbols of all sending ports, and sending a signal after the combination to each receiving port through an NoC bus synchronously and parallely; and the receiving port demodulating the received combined data according to the Walsh code thereof to obtain the bipolar data symbol, and then decoding the bipolar data symbol and sending the decoded bipolar data symbol to the receiving end.
    Type: Application
    Filed: March 28, 2012
    Publication date: April 2, 2015
    Applicant: ZTE Corporation
    Inventor: Chengke Shen
  • Patent number: 8989171
    Abstract: A system and method transmit a data stream from a source to a destination over a communication channel. A transmitter includes devices for processing inputs to assemble data packets for the data stream, and a multiplexer for assembling a data frame to be transmitted over the communication channel, in which each data frame has at least one fixed slot. The multiplexer sets at least one freely allocatable time slot in each data frame. Retransmission control devices connected to the multiplexer retransmit a specific data packet which is not properly received by the destination, using one of the freely allocatable slots.
    Type: Grant
    Filed: April 5, 2004
    Date of Patent: March 24, 2015
    Assignee: Microchip Technology, Inc.
    Inventors: Willem Zwart, Dignus-Jan Moelker, Robert Niels Schutten, Robertus Cornelis Wilhelmus Lansbergen, Maarten Coenen, Johannes Cornelis Hendrikus van Leeuwen
  • Patent number: 8983007
    Abstract: A receiver apparatus includes a first frequency response estimator configured to calculate a first frequency response estimation value using a reference signal, a duration extractor configured to determine an estimation duration by extracting at least one duration from among a plurality of duration candidates into which a predetermined maximum delay time is divided, and a second frequency response estimator configured to calculate a second frequency response estimation value as a frequency response estimation value for demodulation using the first frequency response and the estimation duration. The receiver apparatus thus performs high-precision channel estimation even if a variety of PDPs occur with time.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: March 17, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Katsuya Kato, Takashi Yoshimoto, Ryota Yamada, Shinpei Toh, Kozue Yokomakura
  • Patent number: 8976806
    Abstract: Methods and apparatus are described for providing compatible mapping for backhaul control channels, frequency first mapping of control channel elements (CCEs) to avoid relay-physical control format indicator channel (R-PCFICH) and a tree based relay resource allocation to minimize the resource allocation map bits. Methods and apparatus (e.g., relay node (RN)/evolved Node-B (eNB)) for mapping of the Un downlink (DL) control signals, Un DL positive acknowledgement (ACK)/negative acknowledgement (NACK) and/or relay-physical downlink control channel (R-PDCCH) (or similar) in the eNB to RN (Un interface) DL direction are described. This includes time/frequency mapping of above-mentioned control signals into resource blocks (RBs) of multimedia broadcast multicast services (MBMS) single frequency network (MBSFN)-reserved sub-frames in the RN cell and encoding procedures for these.
    Type: Grant
    Filed: August 12, 2010
    Date of Patent: March 10, 2015
    Assignee: Interdigital Technology Corporation
    Inventors: Kalpendu R. Pasad, Sung-Hyuk H. Shin, Mihaela C. Beluri, Marian Rudolf, Pascal M. Adjakple, John W. Haim
  • 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: 8953642
    Abstract: The present invention relates to a wireless communication system, and more particularly, to a method and apparatus for transmitting a downlink reference signal in a wireless communication system that supports multiple antennas. A method for transmitting channel state information-reference signals (CSI-RS) for two or more antenna ports according to one embodiment of the present invention comprises the steps of: mapping the CSI-RSs for the two or more antenna ports in predetermined patterns on a data region of a downlink subframe: an transmitting the downlink subframe mapped with the CSI-RSs for the two or more antenna ports, wherein the predetermined patterns are defined as patterns differing by a cell, and the different patterns may be defined as the predetermined patterns being shifted in a temporal range, frequency range, or a temporal range and a frequency range.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: February 10, 2015
    Assignee: LG Electronics Inc.
    Inventors: Yu Jin Noh, Dong Wook Roh, Joon Kui Ahn, Byeong Woo Kang, Dae Won Lee, Bong Hoe Kim, Eun Sun Kim
  • Patent number: 8908713
    Abstract: Disclosed is a method for requesting and feeding back a multimedia broadcast multicast service (MBMS) state, the method being used for allowing a network side to inform a related user equipment (UE) to feed back MBMS state information and allowing the informed UE to feed back the MBMS state information. The request method comprises: when necessary to acquire the receiving state of an MBMS, a base station transmits, through a physical downlink control channel (PDCCH) scrambled by a radio network temporary identifier (RNTI) belonging specially to an MBMS service, or through a system message, a multicast control channel (MCCH) change notification to the UE; and the base station transmits an MBMS state report request to the UE through the changed MCCH. The present invention also discloses a device for implementing the method.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: December 9, 2014
    Assignee: China Academy of Telecommunications Technology
    Inventors: Jiamin Liu, Li Chen, Xiaodong Yang
  • Patent number: 8908652
    Abstract: Data is accessed from a network via a wireless communication link. A determination is made as to whether payload data has been received from a subscriber's terminal. If so, then a request is sent for a first set of traffic channels, and the payload data is transmitted over the first set of traffic channels.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: December 9, 2014
    Assignee: Intel Corporation
    Inventors: Charles T. Ferguson, Thomas Gorsuch
  • Patent number: 8902931
    Abstract: A track circuit apparatus for a train, the track circuit apparatus includes: a ground-based transmitter that is installed corresponding to each of a plurality of block sections divided from a track circuit formed by rails, digitally modulates transmission data by a carrier frequency predetermined and common for each of the block sections, assigns different pseudo random noise (PN) codes to adjacent block sections, and modulates and transmits the data; and a ground-based receiver or an on-train receiver that demodulates received data corresponding to a block section based on the carrier frequency of one of reception signals received from the block section and the PN code assigned to the block section.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: December 2, 2014
    Assignee: LSIS Co., Ltd.
    Inventor: Jae Wook Kim
  • Publication number: 20140341235
    Abstract: Each transmitter (4) included in a first transmitter group (40A) transmits, on a first electric wire (2A), a current signal representing a change in current in accordance with a transmission bit sequence. Each transmitter (4) included in a second transmitter group (40B) transmits, on a second electric wire (2B) that is connected in parallel with the first electric wire, a current signal representing a change in current in accordance with a transmission bit sequence. A current detection unit (6A) outputs an electric signal representing a change in a difference current between a first current (IA) flowing through the first electric wire (2A) and a second current (IB) flowing through the second electric wire (2B). A receiver (5A) identifies and receives a reception bit sequence corresponding to the transmission bit sequence of each transmitter (4) included in the first and second transmitter groups, by processing the first electric signal.
    Type: Application
    Filed: May 17, 2013
    Publication date: November 20, 2014
    Inventors: Teruhiko Tagashira, Yukio Hiruta, Hiroshi Honjou, Sadao Nishizawa, Yuji Kasai, Masahiro Murakawa
  • Patent number: 8891452
    Abstract: A communication device and a communication method capable of suppressing an increase of bits used for a request to send a reference signal and flexibly setting a resource used for sending a reference signal. In a base station (100), a transmission processing unit (104) transmits, in one of a plurality of formats, control information containing a request to send a sounding reference signal (A-SRS), and a reception processing unit (108) receives the transmitted A-SRS using the resource specified by the format of the transmitted control information. Then, the plurality of formats is associated with each different SRS resource by a setting unit (101).
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: November 18, 2014
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Akihiko Nishio, Hidetoshi Suzuki
  • Patent number: 8879674
    Abstract: An approach is provided for correlation of a signal over time and frequency. The signal is correlated with a bit sequence over time instances and certain frequency offsets, wherein sub-segments of the signal are correlated with sub-segments of the bit sequence to generate a correlation factor associated with each signal sub-segment. The correlation factors are coherently combined to generate a final correlation factor, wherein a respective phase shift (for each frequency offset) is applied to each correlation factor to generate a set of frequency adjusted correlation factors, and the frequency adjusted correlation factors of a respective set are combined to generate the final correlation factor over the signal sub-segments, resulting in the matrix of final correlation factors over time and frequency. A signal parameter estimation is performed, based on the matrix of final correlation factors, to determine a highest correlation value for the signal over the frequency offsets.
    Type: Grant
    Filed: April 10, 2013
    Date of Patent: November 4, 2014
    Assignee: Hughes Network Systems, LLC
    Inventor: Neal Becker
  • Patent number: 8879581
    Abstract: A data transmitting device transmits section information, a data broadcasting content, and a broadcasting content in a multiplexed manner. The data transmitting device includes a specified-information embedding unit that embeds information related to a specified image into the section information; a multiplexing unit that multiplexes the section information embedded with the specified information by the specified-information embedding unit, the data broadcasting content, and the broadcasting content; and a transmitting unit that transmits data multiplexed by the multiplexing unit to a data receiving device.
    Type: Grant
    Filed: April 5, 2011
    Date of Patent: November 4, 2014
    Assignee: Fujitsu Limited
    Inventors: Atsushi Ichiki, Akira Nakagawa, Shunsuke Kobayashi, Kiyoshi Kohiyama
  • Patent number: 8873605
    Abstract: A method for estimating a scrambling code used on an uplink of a WCDMA system. The scrambling code is obtained from a Gold code, sum of a first specific M-sequence of the user and of a second M-sequence known from the receiver. After sampling of the signal received at the chip frequency of the scrambling code, the successive samples are subject to a differential treatment and the sequence of differential values is multiplied by the second M-sequence. The observables thereby obtained are decoded with the aid of a belief propagation iterative decoding. The decoded values then serve to determine the content of the shift register of the generator of the first M-sequence. One then deduces therefrom the Gold code and an estimation of the scrambling code, ?.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: October 28, 2014
    Assignee: Commissariat à l'énergie atomique et aux énergies alternatives
    Inventor: Mathieu Bouvier des Noes
  • Patent number: 8873465
    Abstract: A baseband processing module of a base station includes a Turbo decoding module. The Turbo decoding module decodes a Turbo code word to produce one or more Media Access Control (MAC) packet(s) carried by the turbo decode word. Each MAC packet includes a MAC packet header and the MAC packet payload, which carries one or more Radio Link Control (RLC) Packet Data Units (PDUs). The Turbo decoding module decodes the MAC packet header to determine boundaries of the PDUs carried in the MAC packet payload. The Turbo decoding module decodes RLC PDU headers and RLC PDU payloads of the RLC PDUs. The Turbo decoding module writes the decoded MAC packet header, the decoded RLC PDU headers, and the decoded RLC PDU payloads to memory in a word-aligned format. The Turbo decoding module may also operate in various other Turbo decoding modes.
    Type: Grant
    Filed: September 17, 2012
    Date of Patent: October 28, 2014
    Assignee: Broadcom Corporation
    Inventors: Xiaoxin Qiu, Li Fung Chang, Hui Luo, Srirang Ashok Lovlekar
  • Patent number: 8854944
    Abstract: Disclosed are methods and apparatus for interference cancellation in a wireless communication system. In particular, the disclosed methods and apparatus provide for interference cancellation in a wireless device, including extending linear interference cancellation techniques, such as quasi-linear interference cancellation (QLIC), in the wireless device to a first orthogonal set, which may be a first quasi orthogonal function (QOF) set for a cdma2000 system to cancel interference from that set upon another desired QOF set. QLIC may also be extended to cancellation of signals from non-intended base stations as well. Accordingly, the present methods and apparatus afford reduced interference through QLIC by canceling signals due to either undesired QOF sets or non-intended base stations, which in turn results in an increase in forward link capacity.
    Type: Grant
    Filed: November 8, 2009
    Date of Patent: October 7, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Yu-Cheun Jou, Rashid A. Attar, Peter J. Black
  • Patent number: 8842693
    Abstract: Systems and methodologies are described that facilitate reducing rank (e.g., of a user device) as a number of transmissions there from increases. Such rank step-down can improve interference resistance and facilitate maintaining code rate despite transmission propagation. Additionally, rank step-down information can be encoded along with CQI information to generate a 5-bit CQI signal that can facilitate updating a user's rank upon each CQI transmission (e.g., approximately every 5 ms). The described systems and/or methods can be employed in a single code word (SCW) wireless communication environment with a hybrid automatic request (HARQ) protocol.
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: September 23, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Avneesh Agrawal, Aamod Khandekar, Hemanth Sampath, Tamer Kadous
  • Patent number: 8842581
    Abstract: A method, a device, and a system for duplex communications. Uplink and downlink frequencies are allocated in an orthogonal manner such that at one time instant a certain carrier frequency is used for uplink (downlink) transmission and at some other time instant for downlink (uplink) transmission. Correspondingly, at said one time instant a second carrier frequency is used for downlink (uplink) transmission and at said some other time instant optionally for uplink (downlink) transmission.
    Type: Grant
    Filed: March 16, 2004
    Date of Patent: September 23, 2014
    Assignee: Nokia Corporation
    Inventor: Ari Hottinen
  • Patent number: 8830932
    Abstract: A method and device for acquiring channel information are disclosed in the present invention, to solve a technical problem in the related art that the channel information cannot be fed back flexibly according to requirements. The method includes: for one subband, User Equipment (UE) acquires Rank Indicator (RI) information of a current channel, in which the RI information indicates a rank (?) of the current channel, and ? is a positive integral number not greater than 8; the user equipment determines the quantity of the Precoding Matrix Indicator (PMI) information required to be fed back to a base station according to ?, and transmits the PMI information in said quantity and the RI information to the base station; the base station acquires the channel information of said subband according to the PMI information in said quantity and said RI information.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: September 9, 2014
    Assignee: ZTE Corporation
    Inventors: Yijian Chen, Jun Xu, Yu Ngok Li, Junfeng Zhang