Walsh Functions Patents (Class 370/209)
  • Patent number: 10389431
    Abstract: An air interface for a terrestrial communications network for providing broadband internet access to aerial platforms is described. In some embodiments, systems and methods are described for efficient retransmission of data packets that are not received correctly. In other embodiments, systems and methods are described for determining the modulation constellation and error correction code rate used in transmitting a data packet to maximize data rates. In another set of embodiments, the retransmission scheme and modulation constellation and error correction code rate determination are jointly optimized to maximize data rates.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: August 20, 2019
    Inventor: Ahmad Jalali
  • Patent number: 10320455
    Abstract: Systems and methods are described for coordinating transmissions in distributed wireless systems via user clustering. For example, a method according to one embodiment of the invention comprises: measuring link quality between a target user and a plurality of distributed-input distributed-output (DIDO) distributed antennas of base transceiver stations (BTSs); using the link quality measurements to define a user cluster; measuring channel state information (CSI) between each user and each DIDO antenna within a defined user cluster; and precoding data transmissions between each DIDO antenna and each user within the user cluster based on the measured CSI.
    Type: Grant
    Filed: June 13, 2016
    Date of Patent: June 11, 2019
    Assignee: REARDEN, LLC
    Inventors: Antonio Forenza, Erik Lindskog, Stephen G. Perlman
  • Patent number: 10298359
    Abstract: A method and apparatus for transmitting uplink (UL) data in a wireless communication system is provided. For one embodiment, a user equipment (UE), adds short cyclic redundancy check (CRC) per each fragment, which consists of a transport block for the UL data, and transmits the UL data to a network. For another embodiment, the UE selects one physical uplink control channel (PUCCH) format, which is used to carry uplink control information (UCI), among multiple PUCCH formats, and transmits the UL data to a network by using the one PUCCH format.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: May 21, 2019
    Assignee: LG Electronics Inc.
    Inventor: Yunjung Yi
  • Patent number: 10298279
    Abstract: A system that incorporates aspects of the subject disclosure may perform operations including, for example, obtaining uplink information associated with a plurality of communication devices transmitting wireless signals on a plurality of uplink paths, performing, based on the uplink information, a plurality of measurements of the plurality of uplink paths, identifying a measurement from the plurality of measurements that is below a threshold, and initiating a corrective action to improve a measurement of an affected uplink path of the plurality of uplink paths based on the identifying. Other embodiments are disclosed.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: May 21, 2019
    Assignee: ISCO International, LLC
    Inventor: Amr Abdelmonem
  • Patent number: 10277334
    Abstract: A radio-frequency (RF) body-coupled communications (BCC) transceiver is disclosed according to one embodiment of the present disclosure. The RF BCC transceiver includes an RF BCC transmitter and an RF BCC receiver, such that the RF BCC transmitter transmits an RF signal to the RF BCC receiver via a body area network (BAN) of a human body.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: April 30, 2019
    Assignee: Khalifa University of Science and Technology
    Inventors: Jerald Yoo, Wala Saadeh
  • Patent number: 10218547
    Abstract: Methods, systems, and devices for wireless communications are described. A transmitting device may modulate a first binary sequence using binary phase shift keying on a first axis of a complex plane. The device may modulate a second binary sequence using binary phase shift keying on a second plane of a complex axis. The first axis and the second axis may be orthogonal. The device may transmit the first binary sequence and the second binary sequence according to the modulation of the first binary sequence and the second binary sequence.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: February 26, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Wei Zeng, Joseph Binamira Soriaga, Tingfang Ji
  • Patent number: 10172038
    Abstract: A method for communication, includes communicating over the air with a first user equipment (UE) in a frequency domain duplexing (FDD) mode, which defines a downlink channel comprising a first set of time-frequency resources in a first frequency range and an uplink channel comprising a second set of time-frequency resources in a second frequency range, which is disjoint from the first frequency range. An excess capacity is identified in the uplink channel, and at a least a portion of the excess capacity is allocated for downlink communication by assigning a subset of the time-frequency resources in the second frequency range to the downlink communication. The method includes communicating over the air with at least one second UE by transmitting downlink information using concurrently a given subset of the first set of time-frequency resources in the first frequency range and the assigned subset of the time-frequency resources in the second frequency range.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: January 1, 2019
    Inventor: Mariana Goldhamer
  • Patent number: 10148409
    Abstract: The present invention relates to a wireless access system supporting a full duplex radio (FDR) transmission environment. A signal transmission and reception method of a base station for a signal in a wireless access system supporting a FDR, according to one embodiment of the present invention, comprises the steps of: transmitting, to a terminal, an indicator which notifies of an application of terminal-specific time division duplex (TDD); transmitting, to the terminal, frame setting information according to the terminal-specific TDD; and transmitting and receiving a signal to and from the terminal on the basis of the frame setting information, wherein the frame setting information is capable of being set on the basis of a first constraint in which a first subframe is a downlink subframe and a special subframe always exists.
    Type: Grant
    Filed: February 16, 2015
    Date of Patent: December 4, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Jinmin Kim, Jaehoon Chung, Genebeck Hahn, Eunjong Lee, Kukheon Choi, Kwangseok Noh
  • Patent number: 10143014
    Abstract: A control device that performs wireless communication and is connected to another control device via a wired network includes: an acquirer that acquires information relating to a channel and a communication timing used for wireless communication via the wired network from another control device that acts as a slave; a generator that generates a setting of a channel and a communication timing in which wireless communication performed by the another control device is free of interference, based on information relating to a channel and a communication timing used for wireless communication of the control device and information relating to the channel and the communication timing used for the wireless communication that are acquired by the acquirer; and a reporter that reports the setting of the channel and the timing generated by the generator to the another control device that acts as the slave via the wired network.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: November 27, 2018
    Assignee: FUJITSU COMPONENT LIMITED
    Inventors: Shinichi Katayama, Naoyuki Nagao, Mitsuru Kobayashi, Tatsuya Odajima
  • Patent number: 10123315
    Abstract: A method and apparatus of a UE are disclosed. In one embodiment, the method includes the UE receiving a superposed signal from a BS. The method also includes the UE receiving a signaling from the BS and getting information from the signaling about a first standard modulation scheme for demodulation and a specific indication of how to retrieve at least one transport block from the demodulation output. In addition, the method includes the UE demodulating the superposed signal received from the BS according to the first standard modulation scheme, retrieving at least one transport block from the demodulation output according to the specific indication, and ignoring other portion(s) of the demodulation output.
    Type: Grant
    Filed: October 12, 2015
    Date of Patent: November 6, 2018
    Assignee: ASUSTek Computer Inc.
    Inventor: I-Jen Chen
  • Patent number: 10116350
    Abstract: Methods and devices related to channel estimation for a communication system comprising a plurality of communication connections are provided. For channel estimation, test sequences are used having three different elements, for example ?1, 0 and +1.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: October 30, 2018
    Assignee: Lantiq Deutschland GmbH
    Inventors: Rainer Strobel, Vladimir Oksman
  • Patent number: 10042699
    Abstract: A multi-chip device and method for storing input data. The multi-chip device includes: a plurality of memory chips being adapted to store encoded input data, wherein each of the plurality of memory chips includes a detection unit that outputs detection information; an evaluation unit being adapted to perform an evaluation of the detection information from each of the plurality of memory chips, and to adapt the detection algorithm of any of the detection units depending on the performed evaluation; a combination unit being adapted to receive the detected bits and to combine the detected bits; and a decoding unit being adapted to output decoded data by decoding the combined detected bits. The present invention also provides a method and a computer program product for storing input data.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: August 7, 2018
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Tobias Blaettler, Thomas Mittelholzer, Nikolaos Papandreou, Thomas Parnell, Charalampos Pozidis, Milos Stanisavljevic
  • Patent number: 10003990
    Abstract: A communication device is described comprising a transmitter configured to transmit data according to a retransmission protocol, a determiner configured to determine whether, for a transmission time scheduled according to the retransmission protocol, there was a transmission gap within a predetermined time interval before the transmission time or to determine whether there will be a transmission gap within a predetermined time interval after the transmission time and a controller configured to control the transmitter to perform an initial transmission of data or a retransmission of data according to the retransmission protocol at the transmission time based on the result of the determination.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: June 19, 2018
    Assignee: INTEL CORPORATION
    Inventors: Tobias Scholand, Roland Hellfajer, Chandra Prakash Gupta
  • Patent number: 10003994
    Abstract: Examples may include techniques for a identifying physical hybrid automatic request (HARQ) indicator channel (PHICH) resources. A PHICH resource along with one or more additional PHICH may be identified for use to enhance coverage for user equipment to receive positive acknowledgements (ACKs) or negative acknowledgement (NAKs) from an evolved Node B (eNB). An ACK/NAK may be sent to the UE by the eNB responsive to receiving data over a physical uplink shared channel (PUSCH) established with the UE. Both the UE and the eNB may operate in compliance with one or more 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) standards.
    Type: Grant
    Filed: September 16, 2014
    Date of Patent: June 19, 2018
    Assignee: Intel Corporation
    Inventors: Seunghee Han, Gang Xiong
  • Patent number: 9985746
    Abstract: The present disclosure relates to a transmitter device and a receiver device. The transmitter device comprises a processor which is communicably coupled with a transmitter unit. The processor is configured to receive a set of Z data streams and select K data streams with the same channel quality from the set of Z data streams for transmission, where K?Z. Thereafter for each information word and for each data stream k=0, . . . , K?1 the processor encodes, scrambles and superposes so as to obtain a first signal sU. Further, for each information word and for each data stream k=0, . . . , K?1 the processor interleaves, encodes, scrambles and superposes so as to obtain a second signal sV. The first signal sU and the second signal sV are combined by the processor into a single signal s for transmission. The transmitter unit of the transmitter device is configured to transmit the transmission signal s over a radio channel.
    Type: Grant
    Filed: January 3, 2017
    Date of Patent: May 29, 2018
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Alberto Giuseppe Perotti, Branislav M. Popovic
  • Patent number: 9930671
    Abstract: A device includes circuitry configured to spread one or more symbols with one or more orthogonal codes into spread signals having a predetermined number of bits. The amplitude of the spread signals is modified via one or more layer coefficients and the spread signals are multiplexed into a layered transmit signal.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: March 27, 2018
    Assignees: SONY CORPORATION, Sony Mobile Communications Inc.
    Inventor: Shigeo Kusunoki
  • Patent number: 9918215
    Abstract: The present invention provides a method for sending a discovery signal and user equipment. The method comprises determining a frequency-time position with a frequency-time hopping invariant according to the frequency-time hopping invariant, determining an initial frequency-time position of a discovery signal in an initial discovery frame according to the frequency-time position with the frequency-time hopping invariant and an idle frequency-time position in the initial discovery frame, and sending the discovery signal at the initial frequency-time position. The method comprises determining a second frequency-time position of the discovery signal in a next discovery frame following the current discovery frame, and sending the discovery signal at the second frequency-time position.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: March 13, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Qizhi Zhang, Qiang Li
  • Patent number: 9913299
    Abstract: Methods and apparatuses for transmitting and receiving a broadcast signal are disclosed. The broadcast signal transmission method includes encoding broadcast data and fast information for rapid scanning and acquisition of a broadcast service, generating a broadcast signal comprising the encoded broadcast data and fast information, and transmitting the generated broadcast signal.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: March 6, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Minsung Kwak, Woosuk Kwon, Sejin Oh, Kyoungsoo Moon, Woosuk Ko, Sungryong Hong
  • Patent number: 9876727
    Abstract: A method for communication includes transmitting a sequence of outgoing data blocks from a network node over a communication link to a peer node, and receiving incoming data blocks from the peer node. A control field is added in a predefined location in each of the outgoing data blocks in the sequence by the network node. In at least a first subset of the outgoing data blocks in the sequence, the control field contains error control information, which is capable of causing the peer node to retransmit one or more of the incoming data blocks to the network node, while in at least a second subset of the outgoing data blocks in the sequence, disjoint from the first subset, the control field contains a flow control instruction, configured to cause the peer node to alter a rate of transmission of the incoming data blocks over the link.
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: January 23, 2018
    Assignee: MELLANOX TECHNOLOGIES TLV LTD.
    Inventors: Chen Gaist, Ran Ravid, Liron Mulla, Avner Hadash
  • Patent number: 9871566
    Abstract: Grouping based reference signal transmission scheme for massive MIMO is disclosed. UEs are grouped and each UE group receives information on a sequence used for the uplink reference signal from a base station. The information is determined to assign orthogonal sequences to UEs within a UE group considering at least one or more of a number of orthogonal sequences, a number of the UEs within the UE group, amount of information to be transmitted, channel condition between the base station and each UE, and a number of sequences assigned to each UE of the UEs.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: January 16, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Kilbom Lee, Jiwon Kang, Hyunsoo Ko, Jaehoon Chung
  • Patent number: 9860100
    Abstract: Provided is a method and device for signal transmission having good PAPR/CM characteristics. With regard to one aspect of said method, the method for transmitting a reference signal in a wireless communication signal comprises a step wherein a reference signal sequence is generated, a step wherein said reference signal sequence is divided with respect to each of multiple sub-blocks, a step wherein each of said plurality of divided reference signal sequence is subject to circular shifting, and a step wherein said plurality of circular shifted reference signals are transmitted via said plurality of sub-blocks.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: January 2, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Seung Hee Han, Jin Sam Kwak, Jae Hoon Chung, Min Seok Noh, Yeong Hyeon Kwon
  • Patent number: 9830355
    Abstract: A computer-implemented method of processing a query vector and a data vector), comprising: generating a set of masks and a first set of multiple signatures and a second set of multiple signatures by applying the set of masks to the query vector and the data vector, respectively, and generating candidate pairs, of a first signature and a second signature, by identifying matches of a first signature and a second signature. The set of masks comprises a configuration of the elements that is a Hadamard code; a permutation of a Hadamard code; or a code that deviates from a Hadamard code or a permutation of a Hadamard code in less than 40% of its elements.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: November 28, 2017
    Assignee: ITU Business Development A/S
    Inventor: Rasmus Pagh
  • Patent number: 9768860
    Abstract: A system and method for body channel communication is provided. The system includes a transceiver which encodes multiple bits per symbol when operating in a high data rate mode by selecting a first Walsh code in response to a first set of multiple bits of data and selecting a second Walsh code in response to a second set of multiple bits of data, both Walsh codes selected from a multiple-bit Walsh code sequence. The transceiver also generates a multi-level transmission signal having a predetermined symbol frequency by stacking the first Walsh code onto the second Walsh code, and transmits the multi-level signal having the first predetermined symbol frequency through the body channel. The transceiver also has additional modes of operation which include a normal mode and a low power mode, the low power mode decoding the multiple bits from the signal in response to harmonic energy from a harmonic frequency generated by the multiple-bit Walsh code sequence.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: September 19, 2017
    Assignee: Agency for Science, Technology and Research
    Inventors: Chee Keong Ho, Xin Liu, Minkyu Je
  • Patent number: 9742536
    Abstract: A base station includes a reference signal allocator that allocates a first layer of dedicated reference signals and a second layer of reference signals to the same resource elements in a first resource block. The reference signals are allocated to two adjacent resource elements corresponding to a first OFDM symbol and a second OFDM symbol on a first, second, and third subcarriers of the first resource block. The base station also includes a reference signal multiplexer that multiplexes the first layer with the second layer. A first cover code W1 is applied to the first layer. A second cover code W2, different from the first cover code, is applied to the second layer in a first and third subcarriers, and a variation of the second cover code W2? is applied to the second layer in a second subcarrier.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: August 22, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Han Nam, Yingyang Li, Jianzhong Zhang
  • Patent number: 9736839
    Abstract: Disclosed are a sequence report method and a sequence report device for reducing a signaling amount for reporting a Zadoff-Chu sequence or a GCL sequence allocated for a cell. Indexes starting at 1 are correlated to different ZC sequences and are allocated for cells so that the indexes are continuous. When such ZC sequences are reported from BS to UE, a start index indicating the start of the continuous indexes is combined with the number of allocated sequences and they are reported as allocation sequence information by a report channel. The UE and the BS share the correlation between the ZC sequences and the indexes and the UE identifies a usable sequence number according to the correlation and the allocation sequence information reported from the BS.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: August 15, 2017
    Assignee: Godo Kaisha IP Bridge 1
    Inventors: Daichi Imamura, Takashi Iwai, Kazunori Inogai, Sadaki Futagi, Atsushi Matsumoto
  • Patent number: 9735935
    Abstract: A base station includes a reference signal allocator that allocates a first layer of dedicated reference signals and a second layer of reference signals to the same resource elements in a first resource block. The reference signals are allocated to two adjacent resource elements corresponding to a first OFDM symbol and a second OFDM symbol on a first, second, and third subcarriers of the first resource block. The base station also includes a reference signal multiplexer that multiplexes the first layer with the second layer. A first cover code W1 is applied to the first layer. A second cover code W2, different from the first cover code, is applied to the second layer in a first and third subcarriers, and a variation of the second cover code W2? is applied to the second layer in a second subcarrier.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: August 15, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Han Nam, Yingyang Li, Jianzhong Zhang
  • Patent number: 9698898
    Abstract: Embodiments provide apparatuses, methods, and computer programs for a receiver and a transmitter of a wireless system. An apparatus (10) for a receiver (100) of a wireless communication system comprises means for receiving (12) radio signals, which are organized in repetitive radio frames, a radio frame being subdivided in sub-frames. The apparatus (10) further comprises means for extracting (14) a first payload data packet from the received radio signals using a single sub-frame of the received radio signals and for extracting a second payload data packet using two or more sub-frames of two or more radio frames. An apparatus (20) for a transmitter (200) comprises means for obtaining (22) information on a subset of radio resources for scheduled and/or non-scheduled transmission.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: July 4, 2017
    Assignee: Alcatel Lucent
    Inventors: Uwe Doetsch, Thorsten Wild, Andre Fonseca Dos Santos, Frank Schaich
  • Patent number: 9654264
    Abstract: There is provided beam forming using a dual polarized antenna array. A first set of reference signals for acquiring channel state information is alternatingly transmitted using a dual polarized antenna array in a first polarization direction and in a second polarization direction, respectively. Quantized channel information based on the first set of reference signals is received from a radio transceiver device. Angular information relating to the radio transceiver device is determined based on the quantized channel information. Transmission beams for transmission to the radio transceiver device are determined. The transmission comprises precoder vectors and have relative orthogonal polarizations for beam forming according to the angular information.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: May 16, 2017
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Fredrik Athley, Sven Petersson
  • Patent number: 9602980
    Abstract: An embodiment of the present invention provides an apparatus, comprising a transceiver adapted for hierarchical encoding for a Multicast Broadcast Service (MBS) in wireless networks, wherein the hierarchical encoding is provided by superposition coding to provide different levels of protection for data streams.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: March 21, 2017
    Assignee: INTEL CORPORATION
    Inventors: Huaning Niu, Yujian Zhang, Changlong Xu
  • Patent number: 9596649
    Abstract: A system and method are disclosed for decreasing the amount of power consumed by a data transmitter in a wireless device when transmitting media (audio and/or visual) data or other data received from a media source or other source. A transmission circuit, such as an application specific integrated circuit (ASIC) or WLAN chip, is configured to deactivate the data transmitter for a deactivation interval and aggregate the media data (or other consistent-rate data) in a buffer while the data transmitter is deactivated. At the end of the deactivation interval, the data transmitter is activated and the aggregated data packets are transmitted. The data transmitter may be repetitively deactivated and activated for transmitting the data. The deactivation interval may be based on the data sampling rate, the transmission rate of the data transmitter, the capacity of the buffer, and/or other factors.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: March 14, 2017
    Assignee: MARVELL INTERNATIONAL LTD.
    Inventors: Milind Kopikare, Rahul Kopikare
  • Patent number: 9537549
    Abstract: Embodiments of the present invention provide a multi-user interference suppression method, terminal and base station. The method includes performing layer mapping on and precoding service data of each of paired users to obtain precoded output data, mapping the precoded output data and a common pilot sequence to a port of an antenna array for sending to each user by using the antenna array. Correspondingly, the embodiments of the present invention further provide a data receiving method, base station and terminal. By using a common pilot sequence based on the paired users, the same pilot sequence is used for each user in the paired users of a cell or a collaborative area, which is different from the technical solution in the prior art where a user-specific pilot is used and pilots of different users are orthogonal.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: January 3, 2017
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Xiaoyan Bi, Dageng Chen, Bin Xia
  • Patent number: 9520972
    Abstract: Transmission patterns for pilot symbols transmitted from a mobile station or base station are provided. The pattern allows for improved receipt of the pilot symbols transmitted. In addition, schemes for improving the ability to multiplex pilot symbols without interference and/or biasing from different mobile stations over the same frequencies and in the same time slots.
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: December 13, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Alexei Gorokhov, Ayman Fawzy Naguib, Arak Sutivong, Dhananjay Ashok Gore, Tingfang Ji
  • Patent number: 9503210
    Abstract: Disclosed are a sequence report method and a sequence report device for reducing a signaling amount for reporting a Zadoff-Chu sequence or a GCL sequence allocated for a cell. Indexes starting at 1 are correlated to different ZC sequences and are allocated for cells so that the indexes are continuous. When such ZC sequences are reported from BS to UE, a start index indicating the start of the continuous indexes is combined with the number of allocated sequences and they are reported as allocation sequence information by a report channel. The UE and the BS share the correlation between the ZC sequences and the indexes and the UE identifies a usable sequence number according to the correlation and the allocation sequence information reported from the BS.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: November 22, 2016
    Assignee: Godo Kaisha IP Bridge 1
    Inventors: Daichi Imamura, Takashi Iwai, Kazunori Inogai, Sadaki Futagi, Atsushi Matsumoto
  • Patent number: 9503230
    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 parallelly 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 parallelly; 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: Grant
    Filed: March 28, 2012
    Date of Patent: November 22, 2016
    Assignee: ZTE Corporation
    Inventor: Chengke Shen
  • Patent number: 9491020
    Abstract: Provided is a method and device for signal transmission having good PAPR/CM characteristics. With regard to one aspect of said method, the method for transmitting a reference signal in a wireless communication signal comprises a step wherein a reference signal sequence is generated, a step wherein said reference signal sequence is divided with respect to each of multiple sub-blocks, a step wherein each of said plurality of divided reference signal sequence is subject to circular shifting, and a step wherein said plurality of circular shifted reference signals are transmitted via said plurality of sub-blocks.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: November 8, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Seung Hee Han, Jin Sam Kwak, Jae Hoon Chung, Min Seok Noh, Yeong Hyeon Kwon
  • Patent number: 9462509
    Abstract: A communication system includes: a base station configured to perform radio communication with a mobile station; and a control device configured to control a rate of transferring data to the base station based on a radio quality between the mobile station and the base station. A control device includes: a memory; and a processor coupled to the memory and configured to: obtain a radio quality between a mobile station and a base station that performs radio communication with the mobile station; and control a rate of transferring data to the base station based on the radio quality.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: October 4, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Yoshiharu Tajima, Naoyuki Saito, Kazuaki Ando, Michiharu Nakamura
  • Patent number: 9413451
    Abstract: Provided is a method and apparatus for transmitting and receiving a Broadcast Channel (BCH) in a cellular communication system. The method for transmitting a BCH in a cellular communication system includes repeating symbols comprising information about the BCH, code-covering the repeated symbols with codes selected from a previously given code set, subcarrier-mapping the code-covered symbols, and transmitting the subcarrier-mapped symbols in one frame by using different beams corresponding to the selected codes. The codes are selected based on a number of repetitions, a cell identifier, and a beam index.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: August 9, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jeong-Ho Park, Hyun-Kyu Yu, Su-Ryong Jeong, Jae-Weon Cho
  • Patent number: 9407418
    Abstract: Acknowledgments for packets received on multiple data channels in wireless communication are channelized with multiple orthogonal codes to generate multiple symbol sequences. Modulation symbols for an acknowledgment channel are generated based on the symbol sequences.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: August 2, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Aleksandar Damnjanovic, Joseph Paul Odenwalder, Stein Arne Lundby, Yongbin Wei
  • Patent number: 9392470
    Abstract: It is possible to improve the CQI reception performance even when a delay is caused in a propagation path, a transmission timing error is caused, or a residual interference is generated between cyclic shift amounts of different ZC sequences. For the second symbol and the sixth symbol of the ACK/NACK signal which are multiplexed by RS of CQI, (+, +) or (?, ?) is applied to a partial sequence of the Walsh sequence. For RS of CQI transmitted from a mobile station, + is added as an RS phase of the second symbol and ? is added as an RS phase of the sixth symbol. A base station (100) receives multiplexed signals of ACK/NACK signals and CQI signals transmitted from a plurality of mobile stations. An RS synthesis unit (119) performs synthesis by aligning the RS phase of CQI.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: July 12, 2016
    Assignee: Godo Kaisha IP Bridge 1
    Inventors: Seigo Nakao, Daichi Imamura, Yoshihiko Ogawa, Atsushi Matsumoto, Katsuhiko Hiramatsu
  • Patent number: 9319114
    Abstract: Coding techniques for a (e.g., OFDM) communication system capable of transmitting data on a number of “transmission channels” at different information bit rates based on the channels' achieved SNR. A base code is used in combination with common or variable puncturing to achieve different coding rates required by the transmission channels. The data (i.e., information bits) for a data transmission is encoded with the base code, and the coded bits for each channel (or group of channels with the similar transmission capabilities) are punctured to achieve the required coding rate. The coded bits may be interleaved (e.g., to combat fading and remove correlation between coded bits in each modulation symbol) prior to puncturing. The unpunctured coded bits are grouped into non-binary symbols and mapped to modulation symbols (e.g., using Gray mapping). The modulation symbol may be “pre-conditioned” and prior to transmission.
    Type: Grant
    Filed: August 18, 2005
    Date of Patent: April 19, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Fuyun Ling, Nagabhushana T. Sindhushayana, Jay R. Walton, Mark Wallace, Ivan Fernandez
  • Patent number: 9306709
    Abstract: A method in a base station of transmitting control information to a mobile station includes transmitting a persistent assignment to a mobile station, wherein the persistent assignment includes a plurality of ACID indications; and transmitting a subsequent assignment to the mobile station including an ACID derived from the plurality of ACID indications. In another method, a mobile station receives control information from a base station, including receiving a persistent assignment from the base station, wherein the persistent assignment includes a plurality of ACID indications; and receiving a subsequent assignment from the base station including an ACID derived from the plurality of ACID indications.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: April 5, 2016
    Assignee: Futurewei Technologies, Inc.
    Inventors: Sean Michael McBeath, Anthony C. K. Soong
  • Patent number: 9276778
    Abstract: Systems and methods for performing a rake-finger operation on a vector processor are described herein. In one embodiment, a method for rake-finger processing comprises loading samples from a register into an execution unit, performing a rake-finger operation on the samples in the execution unit, and writing results from the rake-finger operation to the register. Performing the rake-finger operation comprises performing a finite impulse response (FIR) filter operation, and performing a despread operation, wherein filtered samples from the FIR filter operation are input to the despread operation without going through the register.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: March 1, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Raheel Khan, Steve Hengchen Hsu, Gayatri Singaravelu
  • Patent number: 9247512
    Abstract: Systems and methods are presented that offer significant improvements in the performance of time division duplex (TDD) systems by utilizing an adaptive synchronous protocol. Conventional TDD systems are limited because data is transmitted during discreet and limited intervals of time, and because TDD transceivers may not simultaneously transmit and receive for reasons of insufficiently separated frequencies and limited receiver selectivity. Typically, TDD systems have significant latency due to the time to change from transmission to reception and the propagation delay time. By synchronizing the master nodes and the one or more remotes and by scheduling the traffic loads between these nodes, remote nodes may begin transmitting before the master node is finished with its transmission, and vice versa. This method reduces latency and improves the frame efficiency. Further, the frame efficiency may improve as the distance from the master node to the remote node increases.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: January 26, 2016
    Assignee: Ubiquiti Networks
    Inventors: Gary Schultz, Paul Odlyzko
  • Patent number: 9246659
    Abstract: Systems and methods of scheduling sub-carriers in an OFDMA system in which a scheduler takes into account channel conditions experienced by the communication devices to optimize channel conditions. The scheduler can partition a set of sub-carriers spanning an operating bandwidth into a plurality of segments. The segments can include a plurality of global segments that each includes a distinct non-contiguous subset of the sub-carriers spanning substantially the entire operating bandwidth. One or more of the global segments can be further partitioned into a plurality of local segments that each has a bandwidth that is less than a channel coherence bandwidth. The scheduler determines channel characteristics experienced by each communication device via reporting or channel estimation, and allocates one or more segments to communication links for each device according to the channel characteristics.
    Type: Grant
    Filed: February 18, 2009
    Date of Patent: January 26, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Alexei Y. Gorokhov, Tingfang Ji
  • Patent number: 9225489
    Abstract: A base station includes a reference signal allocator that allocates a first layer of dedicated reference signals and a second layer of reference signals to the same resource elements in a first resource block. The reference signals are allocated to two adjacent resource elements corresponding to a first OFDM symbol and a second OFDM symbol on a first, second, and third subcarriers of the first resource block. The base station also includes a reference signal multiplexer that multiplexes the first layer with the second layer. A first cover code W1 is applied to the first layer. A second cover code W2, different from the first cover code, is applied to the second layer in a first and third subcarriers, and a variation of the second cover code W2? is applied to the second layer in a second subcarrier.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: December 29, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-Han Nam, Yingyang Li, Jianzhong Zhang
  • Patent number: RE45975
    Abstract: A broadcast receiving system capable of receiving mobile broadcast data and a method for processing broadcast signals are disclosed. The broadcast receiving system includes N number of antenna elements, a demodulator, a transmission parameter detector, and a block decoder. The N number of antenna elements receives each of the broadcast signals. The demodulator demodulates the broadcast signal having greater signal strength among each of the received broadcast signals. The transmission parameter detector detects the transmission parameter. The block decoder symbol-decodes the mobile broadcast service data included in the received broadcast signal in block units, based upon the detected transmission parameter.
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: April 12, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Il Soo Cho, Hyeon Cheol Cho, Jong Sun Park, In Hwan Choi, Hyoung Gon Lee, Won Gyu Song, Seung Man Kim, Jong Moon Kim, Jin Woo Kim, Kook Yeon Kwak, Byoung Gill Kim
  • Patent number: RE46327
    Abstract: According to the present invention a transmitter and a transmitting method for communicating data symbols over a communication channel, for example, according to the CDMA system is presented. The transmitter (24, 25) comprises means (9) for spreading each data symbol with a respective spreading code, wherein the spreading codes are mutually orthogonal. Means (10) for scrambling are provided to scramble each spread symbol with a respective scrambling code, the scrambling codes respectively having the same length as the spreading codes. Furthermore, means (11) for the transmission of the spread and scrambled symbols are provided. According to the present invention the means (10) for scrambling are provided with a plurality of different scrambling codes, which can be used simultaneously within the same link.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: February 28, 2017
    Assignee: SONY CORPORATION
    Inventors: Richard Stirling-Gallacher, Jens-Uwe Jürgensen
  • Patent number: RE46541
    Abstract: According to the present invention a transmitter and a transmitting method for communicating data symbols over a communication channel, for example, according to the CDMA system is presented. The transmitter (24, 25) comprises means (9) for spreading each data symbol with a respective spreading code, wherein the spreading codes are mutually orthogonal. Means (10) for scrambling are provided to scramble each spread symbol with a respective scrambling code, the scrambling codes respectively having the same length as the spreading codes. Furthermore, means (11) for the transmission of the spread and scrambled symbols are provided. According to the present invention the means (10) for scrambling are provided with a plurality of different scrambling codes, which can be used simultaneously within the same link.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: September 5, 2017
    Assignee: SONY CORPORATION
    Inventors: Richard Stirling-Gallacher, Jens-Uwe Jürgensen
  • Patent number: RE46674
    Abstract: A broadcast receiving system capable of receiving mobile broadcast data and a method for processing broadcast signals are disclosed. The broadcast receiving system includes N number of antenna elements, a demodulator, a transmission parameter detector, and a block decoder. The N number of antenna elements receives each of the broadcast signals. The demodulator demodulates the broadcast signal having greater signal strength among each of the received broadcast signals. The transmission parameter detector detects the transmission parameter. The block decoder symbol-decodes the mobile broadcast service data included in the received broadcast signal in block units, based upon the detected transmission parameter.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: January 16, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Il Soo Cho, Hyeon Cheol Cho, Jong Sun Park, In Hwan Choi, Hyoung Gon Lee, Won Gyu Song, Seung Man Kim, Jong Moon Kim, Jin Woo Kim, Kook Yeon Kwak, Byoung Gill Kim
  • Patent number: RE47228
    Abstract: Transmitter and receiver units for use in an OFDM communications system and configurable to support multiple types of services. The transmitter unit includes one or more encoders, a symbol mapping element, and a modulator. Each encoder receives and codes a respective channel data stream to generate a corresponding coded data stream. The symbol mapping element receives and maps data from the coded data streams to generate modulation symbol vectors, with each modulation symbol vector including a set of data values used to modulate a set of tones to generate an OFDM symbol. The modulator modulates the modulation symbol vectors to provide a modulated signal suitable for transmission. The data from each coded data stream is mapped to a respective set of one or more “circuits”. Each circuit can be defined to include a number of tones from a number of OFDM symbols, a number of tones from a single OFDM symbol, all tones from one or more OFDM symbols, or some other combination of tones.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: February 5, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Ahmad Jalali, Jay R. Walton, Mark Wallace