Particular Set Of Orthogonal Functions Patents (Class 370/208)
  • Patent number: 10356805
    Abstract: A system and method for scheduling cooperative uplink transmissions in a virtual multiple input multiple output (MIMO) wireless communication environment are provided. More specifically, both random and channel aware orthogonal scheduling techniques for identifying a sub-set of N mobile terminals to provide cooperative uplink transmissions for each transmit time interval are provided.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: July 16, 2019
    Assignee: BlackBerry Limited
    Inventors: Jianming Wu, Ming Jia, Wen Tong, Peiying Zhu
  • Patent number: 10355841
    Abstract: A plurality of modulation signals is generated. Each of the plurality of modulation signals includes a pilot symbol sequence having a plurality of pilot symbols. Each pilot symbol sequence is inserted at a same temporal point in each modulation signal, and each pilot symbol in the pilot symbol sequence has a non-zero amplitude. A quantity of the plurality of pilot symbols in each pilot symbol sequence is greater than or equal to a quantity of the plurality of modulation signals to be transmitted. The plurality of modulation signals are transmitted in an identical frequency band from a plurality of antennas. Each of the transmitted plurality of modulation signals includes transmission data and one of the pilot symbol sequences.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: July 16, 2019
    Assignee: Wi-Fi One, LLC
    Inventors: Yutaka Murakami, Masayuki Orihashi, Akihiko Matsuoka
  • Patent number: 10355727
    Abstract: A computing system may utilize interfering signals of two or more wireless devices for improving communications involving the two or more wireless devices. These techniques and architectures may allow for improved spectral efficiency that enables a relatively large number of wireless devices to communicate among one another via receivers that share overlapping or adjacent frequencies. Such utilization of interfering signals may help solve a general problem involving, for example, co-channel interference (CCI) arising from densely deployed relatively small wireless communication cells for increasing communication throughput.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: July 16, 2019
    Assignee: T-Mobile USA, Inc.
    Inventors: Hongliang Zhang, Jeff Ahmet, Dinesh Arcot Kumar, Egil Gronstad, Brian Allan Olsen, Mark McDiarmid
  • Patent number: 10355898
    Abstract: A transmission method includes mapping processing, phase change processing, and transmission processing. In the mapping processing, a plurality of first modulation signals and a plurality of second modulation signals are generated using a first mapping scheme, and a plurality of third modulation signals and a plurality of fourth modulation signals are generated using a second mapping scheme. In the phase change processing, a phase change is performed on the plurality of second modulation signals and the plurality of fourth modulation signals using all N kinds of phases. In the transmission processing, the first modulation signals and the second modulation signals are respectively transmitted at a same frequency and a same time from different antennas, and the third modulation signals and the fourth modulation signals are respectively transmitted at a same frequency and a same time from the different antennas.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: July 16, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Yutaka Murakami, Tomohiro Kimura, Mikihiro Ouchi
  • Patent number: 10348791
    Abstract: The present invention relates to a technology for providing a place/time-based local interactive service, which provides multi-formatted content information to a user moving while carrying a smart terminal having a dedicated application installed therein. In particular, when moving into a place where a specific wired/wireless AP is installed, a user who carries a smart terminal with a dedicated application activated therein can receive multi-formatted content information previously mapped with the place using a place/time, without a separate manipulation of the smart terminal. According to the present invention, time periods during which the user carrying the smart terminal stays at the place where the specific wired/wireless AP is installed are accumulated and managed using time coins, and the user is then given a benefit according to the accumulated time periods.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: July 9, 2019
    Assignee: IPOPCORN CO., LTD.
    Inventors: Jae-Joon Choi, Kyung-Hoon Kim, Ju-No Yoon, Hyun-Min Lee
  • Patent number: 10348526
    Abstract: For radio channel estimation, frequency-domain samples of a reference signal received by multiple antenna elements are obtained. The frequency-domain samples are converted to time-domain samples covering different time intervals. By removing phase information from the time-domain samples, the time-domain samples are converted to corresponding signal strength values. The signal strength values obtained for the multiple antenna elements are summed for each of the time intervals. At least one of the frequency domain samples and the time-domain samples are filtered based on the summed signal strength values. Radio channel estimation is then performed based on the filtered samples.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: July 9, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventor: Martin Hessler
  • Patent number: 10348473
    Abstract: A method and an apparatus method are provided for transmitting uplink information including acknowledgement information in a wireless communication system. The method includes coding uplink data and the acknowledgement information by using different coding schemes respectively; multiplexing the coded uplink data and the coded acknowledgement information into the uplink information; and transmitting the uplink information using resources, wherein some of the uplink data is transmitted based on a first resource and the acknowledgment information is transmitted based on a second resource, and wherein the first and second resources are adjacent to each other with respect to a time domain.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: July 9, 2019
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Yong-Jun Kwak, Ju-Ho Lee, Joon-Young Cho
  • Patent number: 10348329
    Abstract: Aspects of the present disclosure relate to low density parity check (LDPC) coding utilizing a configurable circular buffer for rate matched transmissions. The circular buffer may be configured based on a selected mother code rate and a fixed circular buffer length. For example, the respective sizes of the systematic and parity bit sections of the circular buffer may be variable based on the selected mother code rate.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: July 9, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Joseph Binamira Soriaga, Shrinivas Kudekar, Thomas Joseph Richardson, Jing Jiang, Renqiu Wang
  • Patent number: 10348540
    Abstract: A communication method and apparatus, and a storage medium are provided. The method is applied to a user equipment and includes: receiving first control signaling transmitted by a first time-frequency area of a fixed subcarrier interval, the first control signaling carrying time-frequency location information of a second time-frequency area of a variable subcarrier interval; and communicating with a base station by using the second time-frequency area, according to the time-frequency location information of the second time-frequency area indicated by the first control signaling.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: July 9, 2019
    Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventors: Juejia Zhou, Wei Hong, Ming Zhang
  • Patent number: 10349390
    Abstract: Embodiments of the present invention disclose a communication method: sending indication information to two or more user equipments, where the indication information includes timeslot indication information and frequency band indication information of the two or more user equipments, at least two user equipments in the two or more user equipments have same timeslot indication information, and the user equipments that have the same timeslot indication information have different frequency band indication information; and obtaining an acknowledgment frame sent by one or more user equipments of the two or more user equipments in a timeslot indicated by respective timeslot indication information and by using a frequency band indicated by respective frequency band indication information. The present invention is used for acknowledgment frame sending.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: July 9, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Weishan Lu, Tao Wu
  • Patent number: 10341050
    Abstract: The present invention related to a 5G or pre-5G communication system to be provided to support a higher data transmission rate since 4G communication systems like LTE. The present invention relates to a method and an apparatus for encoding a channel in a communication or broadcasting system supporting parity-check matrices having various sizes are provided. The method for encoding a channel includes determining a block size of the parity-check matrix; reading a sequence for generating the parity-check matrix, and transforming the sequence by applying a previously defined operation to the sequence based on the determined block size.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: July 2, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seho Myung, Kyungjoong Kim, Min Jang, Hongsil Jeong
  • Patent number: 10341956
    Abstract: This disclosure relates to techniques for opportunistically depowering receiver chains of a wireless device. Based on control information, a device may determine whether the current number of active receiver chains can be reduced while maintaining a target achievable code rate for a period of data reception associated with the control information. Additionally, the device may generate and use a lookup table to determine whether to depower receiver chains, and which receiver chains to depower.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: July 2, 2019
    Assignee: Apple Inc.
    Inventors: Tianyan Pu, Sai Sravan Bharadwaj Karri, Wei Zhang, Swaminathan Balakrishnan, Xiantao Sun, Beibei Wang, Manish G. Vemulapalli, Jia Tang, Sami M. Almalfouh, Zhu Ji, Sachin J. Sane
  • Patent number: 10340999
    Abstract: A wireless communication device and a wireless communication method. The wireless communication device includes one or more processors. The processor is configured to estimate an equivalent channel from a base station to user equipment based on a user equipment specific reference signal from the base station, and generate, according to the estimated equivalent channel, a channel state indication used to be fed back to the base station.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: July 2, 2019
    Assignee: Sony Corporation
    Inventors: Jinhui Chen, Xin Guo, Yuxin Wei, Chen Sun
  • Patent number: 10333650
    Abstract: Techniques for reporting channel quality information (CQI) in a multi-carrier wireless communication system are disclosed. In one aspect, a user equipment determines one or more reporting groups, each comprising a plurality of component carriers which are configured for the user equipment. The user equipment may detect a trigger from a base station that selects a reporting group and may respond to the trigger by sending CQI for at least the activated component carriers in the selected reporting group.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: June 25, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Wanshi Chen, Jelena M. Damnjanovic, Juan Montojo, Peter Gaal
  • Patent number: 10333678
    Abstract: A time division duplex (TDD) scheduling interval communicating transmissions in a first direction may include one or more regions for communicating in a second direction, where the first direction is a transmit direction and the second direction is a receive direction, or vice versa. A radio frame may include TDD scheduling intervals with such regions and/or TDD scheduling intervals without such regions for wireless communication, and these TDD scheduling intervals may further be configured in accordance with different frame structure configurations, such as different scheduling interval lengths, subcarrier spacings or symbol durations.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: June 25, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Kelvin Kar Kin Au, Jianglei Ma, Liqing Zhang, Jing Qiu
  • Patent number: 10326618
    Abstract: A method of transmitting a frame is provided by a device in a WLAN. The device sets as additional data subcarriers some of subcarriers which are not set as data subcarriers in at least part of fields included in a frame of a legacy frame format, and allocates information to the additional data subcarriers.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: June 18, 2019
    Assignee: NEWRACOM, INC.
    Inventors: Heejung Yu, Minho Cheong, Hyoung Jin Kwon
  • Patent number: 10319454
    Abstract: A method includes modeling a design of a memory channel to provide a plurality of transfer functions associated with the design and multiplying an input spectrum with each of the transfer functions to provide a plurality of results. The method further includes summing the results to provide an output spectrum for the design, performing an inverse Fast Fourier Transform (FFT) on the output spectrum to provide an output signal for the design, and determining a bit error rate (BER) for the design based on the output signal.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: June 11, 2019
    Assignee: Dell Products, LP
    Inventors: Bhyrav M. Mutnury, Douglas S. Winterberg, Stuart Allen Berke
  • Patent number: 10321329
    Abstract: Methods and systems are provided for managing communication networks. In a communication network that includes a plurality of cells, one or more antennas in a first cell from the plurality of cells may be configured to support operations in a second cell from the plurality of cells. The configuring may include arranging or causing the arrangement of the one or more antennas of the first cell to be directed towards the second cell, and configuring the one or more antennas of the first cell to use at least one same channel resource as used by antennas of the second cell, for communicating of signals of the second cell. The same channel resource may include a common channel. In some instances, the second cell may be configured to communicate with at least one communication device located within the second cell without use of any antenna of the second cell.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: June 11, 2019
    Assignee: SWISSCOM AG
    Inventors: Thomas Zasowski, Marc Kuhn, Raphael Rolny
  • Patent number: 10320426
    Abstract: The present invention relates to a method of transmitting and a method of receiving signals and corresponding apparatus. One aspect of the present invention relates to an efficient L1 signaling method for an efficient transmitter and an efficient receiver using the efficient L1 signaling method for an efficient cable broadcasting.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: June 11, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Woo Suk Ko, Sang Chul Moon
  • Patent number: 10321422
    Abstract: Embodiments of the present invention disclose a data transmission method, device, and system, are applied to the field of communications, and can improve data transmission efficiency and reduce a time delay. The method includes: acquiring, by a sending device, a time-frequency resource and interleaver information that are to be used by to-be-sent data, where the interleaver information includes a correspondence between an interleaver and a time synchronization code, and there is a one-to-one correspondence between a time synchronization code and an interleaver; selecting a time synchronization code and an interleaver for the to-be-sent data according to the interleaver information; and performing interleaving processing on the to-be-sent data by using the selected interleaver, and sending, to a receiving device on the time-frequency resource, the interleaved to-be-sent data that carries the selected time synchronization code. The embodiments of the present invention are applied to data transmission.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: June 11, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yongxia Lyu, Wen Zhang, Tong Ji
  • Patent number: 10321458
    Abstract: Provided are a method and an apparatus for allocating, by a first OFDM system and a second OFDM system, frequency resources, which are multiplexed in a frequency region, in a wireless communication system. Specifically, the sizes of the frequency resources of the first OFDM system, which corresponds to an existing OFDM, and the second OFDM system, which corresponds to a UF-OFDM, are determined. Adjacent subcarriers are instructed to allocate any one of a guard carrier and a subcarrier to which null data is allocated, while performing frequency resource allocation between the first and second OFDM systems in accordance with the determined sizes of the frequency resources. The information regarding the frequency resource allocation, which comprises information indicative of either the guard carrier or the subcarrier, is transmitted.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: June 11, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Sangrim Lee, Hyunsoo Ko, Kukheon Choi, Kwangseok Noh, Dongkyu Kim, Hojae Lee
  • Patent number: 10320597
    Abstract: There is provided a method and corresponding arrangements for scheduling users with different Guard Interval, GI, length for multi-user transmission in a wireless communication system, where each of the users is associated with a GI length. The proposed technology involves grouping at least a subset of the users into at least two groups according to GI length for transmission in allocated transmission opportunity, TXOP, resources. In this way, by dynamically scheduling at least part of the users for group-wise transmission according to GI length, the spectral efficiency can be improved. The proposed technology allows for higher scheduling flexibility when different users have different GI length requirements.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: June 11, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Meng Wang, Leif Wilhelmsson
  • Patent number: 10320542
    Abstract: A method and a device for transmitting control information to be used in a terminal are provided. Specifically, an asynchronous level of a terminal supporting an asynchronous transmission mode is measured by using a signal received from the terminal. It is determined whether a measured value of the asynchronous level exceeds a threshold value, and if the asynchronous level is exceeded, a filter length and a CP length, which are to be used in the terminal, are changed. Information on the changed filter length and CP length is transmitted to the terminal. A sum of the filter length and the CP length is fixed, a characteristic of out-of-band emission improves when the filter becomes long in length, and interference occurring due to a multi-path delay can be prevented when the CP length becomes long.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: June 11, 2019
    Assignee: LG Electronics Inc.
    Inventors: Sangrim Lee, Hojae Lee, Hyunsoo Ko, Kwangseok Noh, Dongkyu Kim
  • Patent number: 10314092
    Abstract: A method for resource allocation of a terminal configured to perform device-to-device (D2D) communication in a wireless communication system according to an embodiment of the present invention may comprise the steps of: receiving information on the entire available resource region of the D2D communication from a serving base station; transmitting, to the base station, a request for resource allocation required for the D2D communication based on the information on the entire available resource region and channel information of the D2D communication; and receiving, from the base station, resource allocation information for the D2D communication, determined on the basis of the request for resource allocation.
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: June 4, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Jihyun Lee, Hanbyul Seo
  • Patent number: 10313069
    Abstract: A method for reducing the peak-to-average ratio in an OFDM communication signal is provided. The method includes defining a constellation having a plurality of symbols, defining a symbol duration for the OFDM communication signal, and defining a plurality of time instants in the symbol duration. A plurality of tones are allocated to a particular communication device, and a discrete signal is constructed in the time domain by mapping symbols from the constellation to the time instants. A continuous signal is generated by applying an interpolation function to the discrete signal such that the continuous signal only includes sinusoids having frequencies which are equal to the allocated tones.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: June 4, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Rajiv Laroia, Junyi Li, Sathyadev Venkata Uppala
  • Patent number: 10313927
    Abstract: In the present invention, data generated from a source unit are distributed to at least one bandwidth; the data distributed to the respective bandwidths are encoded in order to perform an error correction; the encoded data are distributed to at least one antenna; a subcarrier is allocated to the data distributed to the respective antennas, and an inverse Fourier transform is performed; a short preamble and a first long preamble corresponding to the subcarrier are generated; a signal symbol is generated according to a data transmit mode; and a frame is generated by adding a second long preamble between the signal symbol and a data field for the purpose of estimating a channel of a subcarrier which is not used.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: June 4, 2019
    Inventors: Hee-Jung Yu, Taehyun Jeon, Myung-Soon Kim, Eun-Young Choi, Sok-kyu Lee, Deuk-Su Lyu
  • Patent number: 10305537
    Abstract: Over-the-air phase synchronization for reciprocity-based coordinated multipoint (CoMP) joint transmission is discussed. The base stations of the CoMP group and served user equipment (UEs) transmit phase synchronization reference signals (PSRS). The receiving nodes compute wideband co-phasing values representing the phase difference between pairs of the PSRS over each tone of a whole spectrum band, and slope values based on the per-tone co-phasing values. The UEs feedback the wideband downlink co-phasing value and the downlink slope value. The base stations of the CoMP group determine a phase compensation based on the differences between the slope value calculated by the base station and the slope value reported by the UE, and based on the differences between the wideband co-phasing value calculated by the base station and the wideband co-phasing value reported by the UE. The base station uses the phase compensation to adjust communications by the base stations in the CoMP group.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: May 28, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Zhifei Fan, Taesang Yoo
  • Patent number: 10305653
    Abstract: In one exemplary embodiment, a method includes: inserting an indication of a cyclic prefix length into a transmission; and sending the transmission. In another exemplary embodiment, a method includes: receiving a transmission; and processing the received transmission to obtain an indication of a cyclic prefix length.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: May 28, 2019
    Assignee: Nokia Technologies Oy
    Inventors: Mieszko Chmiel, Przemyslaw J. Czerepinski, Kaj T. Jansen
  • Patent number: 10298367
    Abstract: Methods and apparatuses are provided for transmitting a signal using a sequence in a wireless communication system. A first sequence used to transmit a first signal in a first channel is determined by performing group-hopping using a pseudo-random pattern over a first group of sequences. A second sequence used to transmit a second signal in a second channel is determined by performing the group-hopping using the pseudo-random pattern over a second group of sequences.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: May 21, 2019
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Aris Papasakellariou, Joon-Young Cho
  • Patent number: 10298270
    Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The method for transmitting broadcast signals includes encoding DP data according to a code rate, wherein the encoding further includes LDPC encoding the DP data according to the code rate, bit interleaving the LDPC encoded DP data, mapping the bit interleaved DP data onto constellations, MIMO (Multi Input Multi Output) encoding the mapped DP data, and time interleaving the MIMO encoded DP data; building at least one signal frame by arranging the encoded DP data; and modulating data in the built signal frame by OFDM method and transmitting the broadcast signals having the modulated data, wherein the step of modulating includes inserting CPs in the built signal frame based on a CP set which includes information about locations of CPs, wherein the CP set is defined based on FFT size.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: May 21, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Jongseob Baek, Byounggill Kim, Woochan Kim, Jaehyung Kim, Sungryong Hong, Chulkyu Mun, Jinyong Choi, Jaeho Hwang, Kookyeon Kwak, Woosuk Ko
  • Patent number: 10299262
    Abstract: A method and apparatus schedule user equipment uplink transmissions on an unlicensed carrier. A grant for transmitting physical uplink shared channel on a serving cell operating on an unlicensed carrier can be received in a subframe. A set of subframes can be determined for possible transmission of the physical uplink shared channel. Listen before talk can be performed on the unlicensed carrier to determine an earliest unoccupied subframe in the set of subframes. A physical uplink shared channel can be transmitted in multiple subframes within the set of subframes on the unlicensed carrier, starting with the earliest unoccupied subframe, in response to receiving the grant.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: May 21, 2019
    Assignee: Motorola Mobility LLC
    Inventors: Ravikiran Nory, Vijay Nangia, Murali Narasimha, Ajit Nimbalker
  • Patent number: 10298354
    Abstract: The application relates to the selection of cells to form a cell coordination group for which interference management techniques such as COMP are to be applied. The cells to be selected to improve the performance of a UE in terms of throughput or delay are not necessarily the ones which are geographically the closest because in city environments shadowing effects of buildings exist. Thus, choosing the closest cells for coordinated interference management will not be a good solution in many cases. Hence, there is a need to develop another method and mechanism for more accurately generating a cell coordination group for interference management activities. This problem is solved by the application in that either the downlink interference toward the UE from the neighboring cells is estimated or the neighbor cells listen for the UE and then predict the downlink interference. Furthermore, the algorithm starts with an initial list of cells comprising the most likely handover candidates.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: May 21, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Fredric Kronestedt, Lars Klockar, Magnus Lundevall
  • Patent number: 10284281
    Abstract: A wireless communication base station is disclosed. The base station includes a transceiver coupled to a controller configured to generate a sub-frame having first control region for a first set of users and a second control region for a second set of users that do not receive the first control region, the first control region has a fixed starting location within the sub-frame and the second control region has a starting location that is one of several possible starting locations within the sub-frame, wherein the controller is configured to cause the transceiver to transmit the sub-frame to the first and second sets of users without signaling the starting location of the second control region in the sub-frame.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: May 7, 2019
    Assignee: Google Technology Holdings LLC
    Inventors: Xiangyang Zhuang, Robert T. Love, Vijay Nangia, Ajit Nimbalker, Kenneth A. Stewart
  • Patent number: 10270569
    Abstract: Network node and method in a network node, comprising: grouping a plurality of UEs into at least a first UE group and a second UE group; assigning a mutually orthogonal pilot sequence to each UE comprised in the first UE group; assigning a mutually orthogonal pilot sequence to each UE comprised in the second UE group; assigning a resource-offset to the UEs comprised in each UE group, by which each UE is allowed to start its transmission sub-frame in its Transmission Time Interval, TTI; and transmitting the assigned pilot sequences and the assigned resource-offset to UEs.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: April 23, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Majid Nasiri Khormuji
  • Patent number: 10270496
    Abstract: The present disclosure relates to a pre-5th-generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-generation (4G) communication system such as a long term evolution (LTE). Embodiments of the present disclosure provide a method of a base station in a wireless communication system, including: determining a signal transmission mode to be used by each of antennas based on a channel condition between each of the antennas and a terminal; and transmitting signals to one or more terminals from each of the antennas based on the signal transmission mode.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: April 23, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Pengfei Sun, Bin Yu
  • Patent number: 10257009
    Abstract: Described is a method of searching of multichannel signal and technique of demodulating and detecting DBPSK frequency division multiple access (FDMA) ultra-narrow band signal. A search is based on algorithm encompassing a signal-processing signal, and technique to demodulate and detect FDMA ultra-narrow band together with a method to increase time-frequency resolution.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: April 9, 2019
    Assignee: WAVIOT INTEGRATED SYSTEMS, LLC
    Inventors: Andrey Orlov, Vasiliy Anisimov
  • Patent number: 10250283
    Abstract: An apparatus for carrier recovery includes a frequency detector. The frequency detector includes a Fast Fourier Transform processor receiving a complex baseband RF input signal and outputting at least one positive frequency bin output and at least one negative frequency bin output. The frequency detector includes a first accumulator receiving directly or indirectly the at least one positive frequency bin output and outputting a positive frequency band energy estimate. The frequency detector includes a second accumulator receiving directly or indirectly the at least one negative frequency bin output and outputting a negative frequency band energy estimate. The frequency detector includes a subtractor receiving the positive frequency band energy estimate and the negative frequency band energy estimate and outputting an instantaneous frequency error estimate representing a difference between the positive frequency band energy estimate and the negative frequency band energy estimate.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: April 2, 2019
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventor: Neil Schafer
  • Patent number: 10244493
    Abstract: A method for a device to device (D2D) communication-supporting user equipment detecting a synchronization signal, according to one embodiment of the present invention, comprises the steps of: on the basis of a first index set having a plurality of root indexes on a Zadoff-Chu sequence, detecting a first synchronization signal transmitted by a network; and, on the basis of a second index set having a plurality of root indexes that are different from the first index set, detecting a second synchronization signal transmitted by a D2D synchronization source, wherein the total number of the root indexes of the second index set is configured to be the total number of the root indexes of the first index set ?1.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: March 26, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Inkwon Seo, Hanbyul Seo
  • Patent number: 10237869
    Abstract: A method of remote data transmission over a frequency spectrum divided into a plurality of different elementary channels, between a first device and a second device, including the transmission by the first device of a first signal including a succession of first data by modulation of the first data simultaneously over a number of elementary channels of the plurality of elementary channels and the transmission of a second signal representative of a plan of use of the plurality of elementary channels including a succession of second data at least by modulation of all the second data over a single elementary channel from among said number of elementary channels.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: March 19, 2019
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Dominique Noguet, Jean-Baptiste Dore
  • Patent number: 10231199
    Abstract: Providing for secondary synchronization encoding utilizing a primary synchronization channel (P-SCH)-related scrambling code is described herein. Scrambled secondary synchronization codes (SSCs) can be assigned to multiple base stations of a radio access network (RAN). By way of example, PSC-based scrambling codes can be created from a plurality of M-sequences generated from a common polynomial expression. Further, an SSC codebook is provided that selects sequence pairs of a sequence matrix for generating SSCs. Selection can be based on transmission characteristics of resulting SSCs, providing reduced interference in planned, semi-planned and/or unplanned mobile deployments.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: March 12, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Tao Luo, Peter Gaal, Ke Liu, Arun Kannu
  • Patent number: 10225824
    Abstract: When a plurality of terminals share the same resources in a wireless communication system, and when control information such as acknowledgement/negative acknowledgement (ACK/NAK) information or scheduling information is transmitted, a method of efficiently performing code division multiplexing (CDM) is required to distinguish the plurality of terminals. In particular, it is necessary to develop a method by which a code sequence of CDM can be selected and used according to each cell condition. Provided is a method of forming a signal in a wireless communication system in which a plurality of terminals commonly share frequency and time resources. The method includes the operations of receiving condition information in a cell; selecting one of a plurality of time domain orthogonal sequences having different lengths, according to the condition information; and allocating the selected time domain orthogonal sequence to a control signal symbol block.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: March 5, 2019
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Young-Jo Ko, Hyeong-Geun Park, Il-Gyu Kim, Kapseok Chang, Hyoseok Yi, Young-Hoon Kim, Seung-Chan Bang
  • Patent number: 10225311
    Abstract: Embodiments of the present disclosure provide a signal processing method, an apparatus, and a system. The signal processing method includes acquiring a phase of each of transmit antennas when the lth OFDM data symbol is sent, and acquiring a phase of each of receive antennas when the lth OFDM data symbol is received. The method further includes compensating received signals of each of the receive antennas according to the phase of each of the transmit antennas when the lth OFDM data symbol is sent and the phase of each of the receive antennas when the lth OFDM data symbol is received, to obtain compensated signals of each receive antenna.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: March 5, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Huang Huang, Xi Yan, Sergio Benedetto, Guido Montorsi
  • Patent number: 10225048
    Abstract: The present disclosure is directed to a method and apparatus for controlling a Hybrid Automatic Repeat Request, HARQ, retransmission round-trip time for transmission in a wireless network. The method comprises to estimate (S41) one or more latency related transmission parameters and to select (S43) one or more of a plurality of predefined HARQ relaxation techniques based on the estimated one or more latency related transmission parameters. Transmission is scheduled (S44) using the selected one or more HARQ relaxation technique.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: March 5, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Niclas Wiberg, Martin Hessler, Christian Skärby
  • Patent number: 10225124
    Abstract: Disclosed is a method for a station (STA) device transmitting data in a Wireless Local Area Network (WLAN) system. The method for transmitting data, according to one embodiment of the present invention, comprises the steps of: FEC encoding transmission data; interleaving the transmission data; constellation mapping the transmission data; performing IDFT on the transmission data; and upconverting the transmission data and transmitting a transmission signal, wherein the transmission signal comprises a first part and a second part, and IDFT is performed using different FFT sizes for the first part and the second part.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: March 5, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Wookbong Lee, Jinsoo Choi, Hangyu Cho, Dongguk Lim, Eunsung Park, Kiseon Ryu, Jinyoung Chun
  • Patent number: 10212017
    Abstract: The present invention provides a preamble that is inserted into an OFDMA frame and has a common sequence for all the base stations participating in a transmission. The subscriber station performs fine synchronization using the common sequence on the common preamble, and the resulting peaks will provide the locations of candidate base stations. The base station specific search is then performed in the vicinities of those peaks by using base station specific pseudo-noise sequences. With this two stage cell search, the searching window is drastically reduced. The preamble is matched to known values by a respective receiver to decode the signals and permit multiple signals to be transferred from the transmitter to the receiver. The preamble may comprise two parts, Preamble-1 and Preamble-2, which may be used in different systems, including multioutput, multi-input (MIMO) systems.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: February 19, 2019
    Assignee: APPLE INC.
    Inventors: Jianglei Ma, Hang Zhang, Wen Tong, Ming Jia, Peiying Zhu, Mo-Han Fong
  • Patent number: 10212605
    Abstract: A method, apparatus, and computer program for operating a shared spectrum pool in a cellular communication system is disclosed.
    Type: Grant
    Filed: July 11, 2013
    Date of Patent: February 19, 2019
    Assignee: Nokia Solutions and Networks OY
    Inventors: Yong Teng, Ling Yu, Kari Veikko Horneman
  • Patent number: 10205567
    Abstract: Methods (700, 900) and nodes (110, 120) for transmission of broadcast information, over at least one antenna port, in a subframe, which transmission is received by a receiver (110) in a wireless communication system (100). The broadcast information is transmitted over a set of antenna ports comprising at least one antenna port, in at least one subframe (300) comprising a set of time-frequency resources, wherein a cell-specific reference signal, CRS, is not transmitted in each subframe (300). The method (700) comprises defining (701) a set of antenna ports for the set of time-frequency resources. Also, the method (700) comprises transmitting (702) the broadcast information on the defined (701) set of antenna ports, thereby using said set of time-frequency resources exclusively, such that they are unused for any other antenna port.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: February 12, 2019
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Fredrik Berggren, Weijun Sun
  • Patent number: 10205619
    Abstract: A base station may generate and transmit a transport stream including a sequence of frames. A frame may include a plurality of partitions, where each partition includes a corresponding set of OFDM symbols. For each partition, the OFDM symbols in that partition may have a corresponding cyclic prefix size and a corresponding FFT size, allowing different partitions to be targeted for different collections of user devices, e.g., user devices having different expected values of maximum delay spread and/or different ranges of mobility. The base station may also dynamically re-configure the sample rate of each frame, allowing further resolution in control of subcarrier spacing. By allowing the cyclic prefixes of different OFDM symbols to have different lengths, it is feasible to construct a frame that confirms to a set payload duration and has arbitrary values of cyclic prefix size per partition and FFT size per partition. The partitions may be multiplexed in time and/or frequency.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: February 12, 2019
    Assignee: One Media, LLC
    Inventors: Michael J. Simon, Kevin A. Shelby, Mark Earnshaw
  • Patent number: 10206192
    Abstract: There is provided a device for detecting LTE frame synchronization, including: a CP correlator calculating a correlation of a cyclic prefix (CP) included in each orthogonal frequency division multiplexing (OFDM) symbol of an LTE signal processed digital conversion; a frequency offset compensation unit compensating a frequency offset for a synchronization signal in the LTE signal by using a symbol frequency offset calculated based on the CP correlation; a synchronization signal correlation calculation unit performing a correlation calculation in a time domain with respect to the synchronization signal, of which the frequency offset is compensated, by considering a symbol start timing obtained based on the CP correlation; and a frame synchronization detection unit detecting the frame synchronization of the LTE signal based on a result of the correlation calculation for the synchronization signal.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: February 12, 2019
    Assignee: SOLiD, INC.
    Inventor: Hyunchae Kim
  • Patent number: RE47328
    Abstract: A method for configuring system information, a method for transmitting system information, and a method for transmitting resource ratio information are disclosed. A method for receiving system information elements includes receiving a first message including a fixed-size system information element from a base station, and receiving a second message including an variable-size system information element from the base station.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: March 26, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Young Soo Yuk, Jeong Ki Kim, Ki Seon Ryu, Yong Ho Kim