Maximum Likelihood Decoder Or Viterbi Decoder Patents (Class 375/262)
  • Patent number: 11909486
    Abstract: Aspects described herein relate to concurrently communicating with a base station over multiple frequency bands using a same first beam, and switching, according to beam switching criteria, from the first beam to a second beam during a time period, wherein the time period is based on a timing reference associated with a reference band.
    Type: Grant
    Filed: November 10, 2022
    Date of Patent: February 20, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Muhammad Nazmul Islam, Changhwan Park, Valentin Alexandru Gheorghiu
  • Patent number: 11909483
    Abstract: Aspects are provided which allow a base station to segment a code block into individual code block segments and a UE to determine and indicate a quality of the individual code block segments in a CSI report to a base station. The base station transmits a code block to the UE which includes a plurality of code block segments. The UE determines a code block segment quality of each of the code block segments, and sends a CSI report including one or more of the code block segment qualities to the base station. Thus, the code block segment qualities indicated by the UE allow the base station to determine which segments of the code block should be re-transmitted, for example, based on a best RV to be applied for the code block retransmission, thereby improving retransmission performance.
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: February 20, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Ahmed Elshafie, Yi Huang, Seyedkianoush Hosseini
  • Patent number: 11909466
    Abstract: Methods, systems, and devices for reducing channel state information feedback channel overhead by compressing coefficients of precoding vectors and reporting a subset of the compressed coefficients based on several parameters including network-signaled parameters. Some embodiments may be used in wireless communication embodiments in which channel state information from many layers and many frequency domain units need to be reported.
    Type: Grant
    Filed: August 16, 2021
    Date of Patent: February 20, 2024
    Assignee: ZTE Corporation
    Inventors: Hao Wu, Yong Li, Guozeng Zheng, Zhaohua Lu, Yu Ngok Li
  • Patent number: 11909475
    Abstract: Methods provide wireless communication using a plurality of Antenna Processing Units APUs distributed along a radio stripe and sharing a bus along the radio stripe. Access is provided to a plurality of APU activation/deactivation states for a respective plurality of environmental conditions, wherein each one of the plurality of APU activation/deactivation states defines APUs of the plurality of APUs that are activated and APUs of the plurality of APUs that are deactivated for the respective one of the plurality of environmental conditions. Responsive to detecting a first one of the plurality of environmental conditions, a first one of the plurality of APU activation/deactivation states corresponding to the first one of the plurality of environmental conditions is applied to activate a first subset of the APUs and to deactivate a second subset of the APUs, wherein the first and second subsets of APUs are mutually exclusive.
    Type: Grant
    Filed: November 2, 2019
    Date of Patent: February 20, 2024
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Senthamiz Selvi Arumugam, Ramamurthy Badrinath, Ankit Jauhari, Anusha Pradeep Mujumdar, Vijaya Yajnanarayana
  • Patent number: 11909496
    Abstract: Certain aspects of the present disclosure provide techniques for wireless communication by a user equipment (UE). For example, the UE receives a first indication indicating a same quasi co-location (QCL) mapping for multiple receive beams corresponding to a group of transmit and receive beam pairs from a network entity. Transmit and receive beam pairs are different from each other and grouping of the transmit and receive beam pairs is based on a distance between the UE and the network entity. The UE selects one of the multiple receive beams corresponding to the group of transmit and receive beam pairs, based on the distance between the UE and the network entity.
    Type: Grant
    Filed: November 23, 2021
    Date of Patent: February 20, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Vasanthan Raghavan, Tao Luo, Junyi Li, Mohammad Ali Tassoudji
  • Patent number: 11902201
    Abstract: The disclosure relates to a method, performed by a user equipment (UE), of transmitting or receiving signals in a wireless communication system, and in an embodiment, the UE transmits, to a base station (BS), UE capability information regarding sequence initialization of a demodulation reference signal (DMRS), receives, from the BS, DMRS configuration information determined based on the UE capability information, and receives the DMRS from the BS based on the DMRS configuration information, wherein the DMRS is generated based on a sequence initialization parameter determined based on a code division multiplexing (CDM) group identifier included in the DMRS configuration information.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: February 13, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hoondong Noh, Youngwoo Kwak
  • Patent number: 11902009
    Abstract: This application provides encoding and decoding methods to reduce retransmission in satellite communication. A sending apparatus obtains an information transport block, where the information transport block includes a plurality of code blocks; and generates a redundant code block based on at least two of the plurality of code blocks. The at least two code blocks and the redundant code block are sent over a satellite channel after channel coding. A receiving apparatus receives the to-be-decoded information over the satellite channel, calculates, based on the to-be-decoded information of the at least two code blocks and the redundant code block, an a priori log-likelihood ratio of a to-be-decoded bit, and combines the a priori log-likelihood ratio and a log-likelihood ratio obtained after demodulation, to obtain a diversity gain. Decoding is performed based on the combined log-likelihood ratio. This method improves decoding accuracy and reduces the need for retransmission.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: February 13, 2024
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Rongdao Yu, Jun Chen
  • Patent number: 11894909
    Abstract: The present application relates to devices and components including apparatus, systems, and methods for determining a beam for communication between a user equipment and a base station. For example, angle of arrival estimates may be utilized for determining the beam for communication.
    Type: Grant
    Filed: August 1, 2022
    Date of Patent: February 6, 2024
    Assignee: APPLE INC.
    Inventors: Yakun Sun, Rohit U. Nabar, Mithat C. Dogan, Parvathanathan Subrahmanya, Han Yan, Louay Jalloul
  • Patent number: 11894898
    Abstract: A method, network node and wireless device for phase error compensation for Fifth Generation downlink systems with four correlated uncalibrated antennas are provided. A method includes applying N incremented phase rotations to one of the four antennas to produce N channel state information reference signal resources, N being an integer greater than 1. The method also includes transmitting N CSI-RS on 4 CSI-RS ports to a wireless device, WD, each of the N CSI-RS resources being transmitted with a different one of the incremented phase rotations. The method further includes receiving from the WD a CSI-RS resource indication that indicates a particular one of the N CSI-RS resources. The method also includes applying, in subsequent transmissions to the WD, a phase rotation to the one of the four antennas, the phase rotation corresponding to the indicated CSI-RS resource.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: February 6, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Jianguo Long, Shaohua Li
  • Patent number: 11893094
    Abstract: The invention discloses a DNN watermarking method, comprising embedding part of the digital watermark in selected redundant elements of a deep neural network (DNN) model—without compromising the performance of the DNN. The proposed method aims for a robust watermark scheme by embedding a large watermark that can span the whole DNN model. If an adversary attempts to destroy the watermark, the whole DNN model will be destroyed. However, maximizing the hiding capacity can lead to degradation in the performance of the DNN model. In this work, this capacity-performance trade-off problem is solved using the Discrete Cosine Transform (DCT). Moreover, the DCT can work more efficiently with highly correlated data. Therefore, this work suggests segmenting the weights of the DNN model into correlated segments to fully exploit the advantages of the DCT.
    Type: Grant
    Filed: June 5, 2023
    Date of Patent: February 6, 2024
    Assignee: UNIVERSITY OF SHARJAH
    Inventors: Tamer Rabie, Mohammed Baziyad, Ibrahim Kamel, Grigory Kabatyansky
  • Patent number: 11892563
    Abstract: Methods and systems for detecting human presence in an outdoor monitored site are disclosed. In an configuration, the method may include providing at least three transmitters for transmitting radio signals and at least three receivers for receiving radio signals. Channel state information (CSI) data is extracted from the radio signals. The CSI data include phase values and amplitude values. The CSI data is converted into an image representation map and then a surface map is generated using Machine Learning (ML) networks. The surface map is a representation of correspondence between the image representation map and a 3-dimensional (3D) surface associated with a human body.
    Type: Grant
    Filed: August 21, 2023
    Date of Patent: February 6, 2024
    Assignee: PROJECT CANARY, PBC
    Inventor: Ray K. Mistry
  • Patent number: 11894905
    Abstract: A communication device includes a plurality of distributed units (DUs), each including an antenna; and a central unit (CU) which is arranged to be spaced from each of the plurality of DUs, and which is connected through each of the plurality of DUs and a plurality of DU links. The central unit measures the channel quality of each of the plurality of DU links, and the central unit can perform control so that power is cut off to the DU corresponding to the DU link if it is determined that the DU link is in an abnormal status during the operation time of a timer (TDU_link) associated with the connection to the DU link, and perform control so that power is supplied to the DU corresponding to the DU link if it is determined that the DU link has returned to a normal status.
    Type: Grant
    Filed: November 1, 2021
    Date of Patent: February 6, 2024
    Assignee: LG ELECTRONICS INC.
    Inventors: Jeongin Kim, Dongsun Lee
  • Patent number: 11881966
    Abstract: Systems, methods, and devices to reduce the channel estimation overhead by collecting data from many UEs and building a location-based mathematical model are disclosed. During building of the model, a reference signal is used to collect location- and signal-related data from connected UEs. Once the model is successfully built, it is then transmitted and/or downloaded to each new UE that connects to the base station. The UEs and/or the base stations then use this model to determine their own transmission parameter values. The UEs also report their location to the base stations, which use the model to estimate channel conditions and adapt transmission parameters for themselves.
    Type: Grant
    Filed: January 25, 2023
    Date of Patent: January 23, 2024
    Assignee: T-Mobile USA, Inc.
    Inventor: Shahzad Bashir
  • Patent number: 11876583
    Abstract: Examples disclosed herein relate to a Multiple-Input Multiple-Output (MIMO) radar for virtual beam steering. The MIMO radar has a plurality of transmit antennas and a receive antenna array having a plurality of radiating elements. The MIMO radar also includes a digital signal processor (DSP) configured to synthesize a virtual receive array having N×M receive subarrays from the plurality of transmit antennas and the receive antenna array, where N is the number of transmit antennas and M is the number of receiving elements. Other examples disclosed herein relate to a method of virtual beam steering.
    Type: Grant
    Filed: August 16, 2021
    Date of Patent: January 16, 2024
    Assignee: Metawave Corporation
    Inventor: Jun Fang
  • Patent number: 11870472
    Abstract: A radio frequency structure includes: a radio frequency front-end module, a switch module, and an antenna module. The radio frequency front-end module includes a radio frequency transceiver, and a first processing module, a second processing module, a third processing module, a fourth processing module, and a fifth processing module that are connected to the radio frequency transceiver. The switch module includes a first switch module and a second switch module. The antenna module includes a first antenna, a second antenna, a third antenna, and a fourth antenna that are used to receive or send radio frequency signals.
    Type: Grant
    Filed: May 28, 2021
    Date of Patent: January 9, 2024
    Assignee: VIVO MOBILE COMMUNICATION CO., LTD.
    Inventor: Sha Zhang
  • Patent number: 11863273
    Abstract: Aspects presented may enable RF sensing to be adaptive to the environment to improve the sensing, performance, and/or the spectrum efficiency of cellular systems and the power efficiency of RF sensing nodes. In one aspect, an RF sensing node extracts one or more features for a set of objects of an area via at least one non-RF sensor. The RF sensing node transmits, to a network entity, the one or more features or at least one non-RF measurement derived from the one or more features. The RF sensing node receives, from the network entity, an RRS transmission configuration derived based on the one or more features or the at least one non-RF measurement transmitted to the network entity.
    Type: Grant
    Filed: February 9, 2022
    Date of Patent: January 2, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Weimin Duan, Fei Huang
  • Patent number: 11863215
    Abstract: A high-frequency front end module includes a primary antenna terminal and a secondary antenna terminal, a first multiplexer and a second multiplexer, a switch circuit, and a first amplifier and a second amplifier. The first multiplexer has a first transmission filter and a first reception filter. The second multiplexer has a second transmission filter and a second reception filter. The switch circuit exclusively switches connection between the primary antenna terminal and the first multiplexer and connection between the primary antenna terminal and the second multiplexer, and exclusively switches connection between the secondary antenna terminal and the first multiplexer and connection between the secondary antenna terminal and the second multiplexer.
    Type: Grant
    Filed: February 16, 2023
    Date of Patent: January 2, 2024
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Motoji Tsuda, Takayuki Nakamura, Daerok Oh
  • Patent number: 11864186
    Abstract: A wireless device receives configuration parameters indicating a linkage between a first search space (SS), of a scheduled cell, and a second SS, of a first bandwidth part (BWP) of a scheduling cell, and that a third SS, of the scheduled cell, is not linked to any SSs of a second BWP of the scheduling cell. In response to the linkage and the first BWP being active, the second SS is monitored for receiving a scheduling indication for the scheduled cell. The wireless device switches from the first BWP to the second BWP as an active BWP of the scheduling cell. In response to the switching and the third SS not being linked to the any SSs of the second BWP, the third SS is monitored for receiving DCI for the scheduled cell. The DCI is received via the third SS and for transmission on the scheduled cell.
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: January 2, 2024
    Assignee: Ofinno, LLC
    Inventors: Hua Zhou, Esmael Hejazi Dinan, Ali Cagatay Cirik, Yunjung Yi, Alireza Babaei, Hyoungsuk Jeon, Kyungmin Park
  • Patent number: 11855824
    Abstract: Provided are a data modulation method and apparatus, a device, and a storage medium. The data modulation method comprises: modulating data according to a configured constellation point modulation symbol S(n) set, wherein n is an integer between 0 and N?1, and N is an even integer greater than or equal to 4; and transmitting the modulated data on a physical resource.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: December 26, 2023
    Assignee: ZTE CORPORATION
    Inventors: Yu Xin, Tong Bao, Jin Xu, Guanghui Yu, Liujun Hu
  • Patent number: 11855715
    Abstract: Apparatuses, systems, and methods for multi-TRP by a UE, including out of order delivery of PDSCH, PUSCH, and/or DL ACK/NACK. The UE may receive, from a base station, a configuration that may include multiple control resource set (CORESET) pools and each CORESET pool may be associated with an index value. The UE may determine that at least two DCIs of the multiple DCIs end at a common symbol and determine, based on one or more predetermined rules, when the UE may be scheduled to receive PDSCHs, transmit PUSCHs, and/or transmit ACK/NACKs from CORESETs associated with the at least two DCIs.
    Type: Grant
    Filed: June 6, 2022
    Date of Patent: December 26, 2023
    Assignee: Apple Inc.
    Inventors: Haitong Sun, Yushu Zhang, Wei Zeng, Dawei Zhang, Yuchul Kim, Hong He, Weidong Yang, Chunhai Yao, Chunxuan Ye, Oghenekome Oteri, Ismael Gutierrez Gonzalez, Ghaith N Hattab, Jie Cui, Yang Tang, Haijing Hu, Fangli Xu, Zhibin Wu, Yuqin Chen, Yeong-Sun Hwang
  • Patent number: 11855709
    Abstract: Methods, systems, and storage media are described for the Embodiments discussed herein may relate to enhancements to radio link monitoring (RLM) for new radio (NR) systems. Other embodiments may be described and/or claimed.
    Type: Grant
    Filed: September 20, 2022
    Date of Patent: December 26, 2023
    Assignee: Apple Inc.
    Inventors: Qiming Li, Hua Li, Manasa Raghavan, Jie Cui, Yang Tang
  • Patent number: 11843964
    Abstract: Disclosed are various techniques for wireless communication. In an aspect, a user equipment (UE) identifies a set of positioning sources, each positioning source comprising a positioning reference signal (PRS) resource, a PRS resource set, a PRS frequency layer, and/or a transmission/reception point (TRP). From the set of positioning sources, the UE identifies a consistency group comprising a collection of positioning sources grouped based on expected values of at least one metric of a reference signal from each positioning source, measured values of the at least one metric for the reference signal from each positioning source, and an error threshold. The UE identifies one or more subsets of positioning sources within the consistency group, each subset having at least one metric error value. The UE reports, to a network entity, information about the consistency group and information about at least one of the subsets of positioning sources within the consistency group.
    Type: Grant
    Filed: September 23, 2021
    Date of Patent: December 12, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Alexandros Manolakos, Sony Akkarakaran, Jingchao Bao, Weimin Duan, Tao Luo, Juan Montojo
  • Patent number: 11838944
    Abstract: The present disclosure relates to a communication technique for converging a 5G communication system, which is provided to support a higher data transmission rate beyond a 4G system with an IoT technology, and a system therefor. The disclosure may be applied to intelligent services (e.g., smart home, smart building, smart city, smart car or connected car, health care, digital education, retail business, security and safety related service, or the like) based on the 5G communication technology and the IoT related technology. The disclosure relates to a method for recovering a beam into a correct beam according to a position of a terminal using a non-contention-based and contention-based beam failure recovery method in order to recover a beam failure in which communication is disconnected due to movement of a terminal or the like in a wireless communication system performing beam-based communication services.
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: December 5, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sangbum Kim, Soenghun Kim, Jaehyuk Jang, Seungri Jin, Donggun Kim, Alexander Sayenko
  • Patent number: 11838168
    Abstract: A method for supporting a receiving operation based on 2D-NUC performed by a first wireless device according to the present embodiment, comprises the steps of: receiving first and second input information from a second wireless device; performing equalization on the first and second input information; and generating LLR information on the basis of lookup table information predetermined for the equalized first and second input information and 2D-NUC.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: December 5, 2023
    Assignee: LG ELECTRONICS INC.
    Inventors: Joongkwan Huh, Jaewook Song, Kyuin Lee
  • Patent number: 11831388
    Abstract: An apparatus, method and computer program is described comprising: receiving, at a user device, a downlink reference signal from a communication node of a mobile communication system, wherein the downlink reference signal is received by one of a plurality of beams of a receiver of the user device in accordance with a configured beam alignment; determining whether to initiate beam switching to reconfigure the beam alignment at said receiver based, at least in part, on a signal power of the received downlink reference signal; and determining, in the event that beam switching is to be initiated, whether to initiate communication node assisted beam switching or non-communication node assisted beam switching.
    Type: Grant
    Filed: June 21, 2022
    Date of Patent: November 28, 2023
    Assignee: NOKIA TECHNOLOGIES OY
    Inventors: Simon Svendsen, Samantha Caporal Del Barrio, Christian Rom, Benny Vejlgaard
  • Patent number: 11831473
    Abstract: Reduced-complexity maximum likelihood sequence detectors (rMLSD) are disclosed for detecting multibit symbols such as those found in pulse amplitude modulation (PAM), quadrature amplitude modulation (QAM), and phase shift keying (PSK) signal constellations with more than two constellation points. One illustrative digital communications receiver includes: an initial equalizer that derives an initial sequence of symbol decisions from a filtered receive signal, each symbol decision in the initial sequence having a second most likely symbol decision; and a rMLSD that derives a final sequence of symbol decisions by evaluating state metrics only for each symbol decision in the initial sequence and its second most likely symbol decision.
    Type: Grant
    Filed: March 28, 2022
    Date of Patent: November 28, 2023
    Assignee: Credo Technology Group Limited
    Inventors: Yu Liao, Junqing (Phil) Sun
  • Patent number: 11818784
    Abstract: A wireless device may increment a beam failure instance counter based on detecting a first beam failure instance associated with one or more first reference signals, RSs, for beam failure detection. The wireless device may receive a medium access control control element, MAC CE, activating one or more second RSs for beam failure detection. The wireless device may resetting the beam failure instance counter in response to receiving the MAC CE. increment the beam failure instance counter based on detecting a second beam failure instance associated with the one or more second RSs. The wireless device may initiate a beam failure recovery based on the beam failure instance counter being equal to or greater than a first value.
    Type: Grant
    Filed: September 30, 2022
    Date of Patent: November 14, 2023
    Assignee: Ofinno, LLC
    Inventors: Kai Xu, Esmael Hejazi Dinan, Hua Zhou, Yunjung Yi, Jonghyun Park, Hyoungsuk Jeon
  • Patent number: 11817914
    Abstract: A network device is provided that uses power measurements to measure a relative phase between a received signal from a reference antenna in a plurality of antennas and a received signal from each antenna in the plurality of antennas except the reference antenna. The network device may use a direct phase measurement to measure the phase of other received signals from additional antennas.
    Type: Grant
    Filed: December 28, 2021
    Date of Patent: November 14, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Vasanthan Raghavan, Juergen Cezanne, Junyi Li
  • Patent number: 11817985
    Abstract: Various schemes pertaining to extremely-high-throughput long training filed (EHT-LTF) sequence design for distributed-tone resource units (dRUs) with peak-to-average power ration (PAPR) reduction in 6 GHz low-power indoor (LPI) systems are described. A communication entity distributes subcarriers of a RU with a resolution of four times (4×) subcarrier spacing to generate a 4×EHT-LTF of an uplink (UL) trigger-based (TB) physical-layer protocol data unit (PPDU) with a dRU. The communication entity then transmits the 4×EHT-LTF for the UL TB PPDU with dRU.
    Type: Grant
    Filed: February 14, 2022
    Date of Patent: November 14, 2023
    Assignee: MediaTek Singapore Pte. Ltd.
    Inventors: Shengquan Hu, Jianhan Liu, Gary A. Anwyl, Thomas Edward Pare, Jr.
  • Patent number: 11811474
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first network node may receive a signal. The first network node may transmit an angle of departure (AoD) report that indicates at least one predicted AoD associated with a dominant channel cluster, wherein the at least one predicted AoD is based at least in part on the signal. Numerous other aspects are described.
    Type: Grant
    Filed: April 5, 2022
    Date of Patent: November 7, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Hamed Pezeshki, Tao Luo, Mahmoud Taherzadeh Boroujeni, Arumugam Chendamarai Kannan
  • Patent number: 11812421
    Abstract: Reliable communication in 5G and planned 6G networks depends on the fast, realtime decision-making regarding signal quality, beam parameters, and modulation. Rapid-fire messaging among hordes of diverse users in a busy urban setting will require efficient procedures for managing beam parameters in realtime, under complex changing conditions. The required time scales have already shrunk below the reflex time of humans. Therefore, artificial intelligence procedures are required for certain key aspects of feedback beam management. Disclosed are AI models for (a) instant evaluation of signal quality based on received signal properties and backgrounds, (b) incremental adjustment of beam parameters on demand, and (c) adapting the modulation scheme and size, based on fault patterns and QoS requirements. Each of these AI models can be tuned using network data, and then adapted for field use by a base station or a user device, for realtime beam parameter optimization.
    Type: Grant
    Filed: March 28, 2023
    Date of Patent: November 7, 2023
    Inventors: David E. Newman, R. Kemp Massengill
  • Patent number: 11804991
    Abstract: A sequence detection device includes a decision-feedback equalizer (DFE), a combining circuit, a decision circuit, and a sequence detection circuit. The DFE processes a symbol decision signal to generate a first equalized signal. The combining circuit combines a data signal and the first equalized signal to generate a sample signal. The decision circuit performs hard decision upon the sample signal to generate the symbol decision signal. The sequence detection circuit performs sequence detection upon the data signal to generate and output a symbol sequence. Regarding the sequence detection, the sequence detection circuit selects branches for branch metric calculation according to at least the symbol decision signal.
    Type: Grant
    Filed: August 22, 2022
    Date of Patent: October 31, 2023
    Assignee: MEDIATEK INC.
    Inventors: Yu-Ting Liu, Che-Yu Chiang, Deng-Fu Weng
  • Patent number: 11799693
    Abstract: A wireless communication method and a wireless communication device. An electronic device for a user equipment in a wireless communication system, including a processing circuit configured to receive, from a base station, channel state information reference signal with a set of reception filters, perform channel estimation on a downlink channel from the base station to the user equipment, select, from the set of reception filters, one or more particular reception filters corresponding to respective channel estimation results that satisfy a first predetermined condition, and signal, from the user equipment to the base station, sounding reference signal with one or more particular transmission filters, wherein the one or more particular transmission filters and one or more particular reception filters are reciprocal respectively.
    Type: Grant
    Filed: March 31, 2022
    Date of Patent: October 24, 2023
    Assignee: SONY GROUP CORPORATION
    Inventors: Peiyao Zhao, Zhaocheng Wang, Jinhui Chen
  • Patent number: 11799530
    Abstract: A method is provided. The method includes determining a set of beam indexes including a first beam index and a second beam index; and determining a set of candidate matching networks. The method further includes performing an assigning step, where the assigning step includes: (a1) assigning a first matching network from the set of candidate matching networks to a first beam index; and (a2) assigning a second matching network from the set of candidate matching networks to a second beam index. The first matching network is different from the second matching network.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: October 24, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Tsao-Tsen Chen, Erik Larsson, Anders Stjernman
  • Patent number: 11792056
    Abstract: The present disclosure includes a method of performing synchronization and frequency offset estimation The method includes an input signal corresponding to a single received training sequence. Phase information and a phase index are generated by performing an auto-correlation function (ACF) on the input signal. A templet signal associated with a sample index of the input signal is generated based on at least one pre-stored look-up table (LUT), the phase index, a frequency bandwidth of the input signal, and the sample index. Power associated with the sample index is calculated by performing a matched filtering on the input signal based on the templet signal. A synchronization timing and a frequency offset for the input signal are simultaneously determined based on a result of the matched filtering.
    Type: Grant
    Filed: November 8, 2021
    Date of Patent: October 17, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jinyong Lee, Hyeonjun Kim, Hyunbae Jeon, Sungsoo Kim
  • Patent number: 11784695
    Abstract: Channel state information (CSI) operations are disclosed with regard to elevation beamforming (EB)/full dimension (FD) multiple input, multiple output (ED/FD-MIMO) operations. With CSI processing associated with multiple CSI-reference signal (CSI-RS) resources, ambiguities may arise in determining the CSI reporting type and rank. CSI reporting type may be determined using a last reported beam selection indicator (BI) or, in the absence of a BI, may be determined according to a predefined rule. When rank and BI are reported separately and rank is absent, user equipment may determine a default reference rank for CSI reporting based on either or both of previously reported rank or BI. When rank and BI are jointly reported, encoding schemes with fixed bitwidths determined based on either CSI-RS processes or resources may be used to enhance decoding. CSI-RS antenna ports, processes, or resources may also be used in determining application of CSI processing relaxation.
    Type: Grant
    Filed: January 25, 2022
    Date of Patent: October 10, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Chao Wei, Yu Zhang, Wanshi Chen, Peter Gaal
  • Patent number: 11777779
    Abstract: Certain aspects of the present disclosure provide techniques for indicating dynamic time offset(s) for control resource sets (CORESETS). A method that may be performed by a user equipment (UE) includes receiving signaling indicating a dynamic time offset for monitoring occasions of a search space associated with a CORESET, and based on the dynamic time offset, monitoring for a physical downlink control channel (PDCCH) in monitoring occasions.
    Type: Grant
    Filed: January 13, 2022
    Date of Patent: October 3, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Mahmoud Taherzadeh Boroujeni, Tao Luo, Xiaoxia Zhang
  • Patent number: 11768732
    Abstract: According to one embodiment, a memory system includes a non-volatile memory, a memory interface that reads data recorded in the non-volatile memory as a received value, a converting unit that converts the received value to first likelihood information by using a first conversion table, a decoder that decodes the first likelihood information, a control unit that outputs an estimated value with respect to the received value, which is a decoding result obtained by the decoding, when decoding by the decoder has succeeded, and a generating unit that generates a second conversion table based on a decoding result obtained by the decoding, when decoding of the first likelihood information by the decoder has failed. When the generating unit generates the second conversion table, the converting unit converts the received value to the second likelihood information by using the second conversion table, and the decoder decodes the second likelihood information.
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: September 26, 2023
    Assignee: KIOXIA CORPORATION
    Inventors: Yuta Kumano, Hironori Uchikawa, Kosuke Morinaga, Naoaki Kokubun, Masahiro Kiyooka, Yoshiki Notani, Kenji Sakurada, Daiki Watanabe
  • Patent number: 11764835
    Abstract: A communication device may include a millimeter wave (mm-wave) antenna array having antenna elements, a mm-wave element (e.g. lens), and one or more transceivers (e.g. first and second transceivers). The mm-wave lens may be configured to adjust the first beam and the second beam as the first and second beams pass through the mm-wave lens. The first transceiver can selectively couple to the antenna elements, the first transceiver being configured to drive a first selected antenna element of the antenna elements to transmit a beam from the selected first antenna element. The second transceiver may selectively couple to the antenna elements, the second transceiver being configured to drive a second selected antenna element of the antenna elements to transmit a second beam from the selected second antenna element.
    Type: Grant
    Filed: September 9, 2021
    Date of Patent: September 19, 2023
    Assignee: Intel Corporation
    Inventors: Ashoke Ravi, Ofir Degani, Ronen Kronfeld, Harry Skinner, Seong-Youp Suh, Tae-Young Yang
  • Patent number: 11757475
    Abstract: A radio-frequency (RF) sampling transmitter (e.g., of the type that may be used in 5G wireless base stations) includes a complex baseband digital-to-analog converter (DAC) response compensator that operates on a complex baseband signal at a sampling rate lower than the sampling rate of an RF sampling DAC in the RF sampling transmitter. The DAC response compensator flattens the sample-and-hold response of the RF sampling DAC only in the passband of interest, addressing the problem of a sin c response introduced by the sample-and-hold operation of the RF sampling DAC and avoiding the architectural complexity and high power consumption of an inverse sin c filter that operates on the signal at a point in the signal chain after it has already been up-converted to an RF passband.
    Type: Grant
    Filed: October 4, 2021
    Date of Patent: September 12, 2023
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Jaiganesh Balakrishnan, Sriram Murali, Sundarrajan Rangachari, Yeswanth Guntupalli
  • Patent number: 11750280
    Abstract: In one embodiment, an over-the-air millimeter wave repeater for a communications network comprises: a donor unit including a first plurality of modular electronic components and an access point including a second plurality of modular electronic components. The donor unit communicates downlink mmWave spectrum wireless signals received from a base station to the access point and radiates uplink mmWave spectrum wireless signals received from the access point to the base station. The access point radiates the downlink mmWave spectrum wireless signals received from the donor unit into a coverage area, receives the uplink mmWave spectrum wireless signals received from the coverage area, and communicates the uplink mmWave spectrum wireless signals to the donor unit. The first and second plurality of modular electronic components includes at least one of a modular antenna component, a modular signal conditioning component, a modular signal interface component, and a modular controller.
    Type: Grant
    Filed: February 4, 2021
    Date of Patent: September 5, 2023
    Assignee: COMMSCOPE TECHNOLOGIES LLC
    Inventors: Daniel Schwab, Felix Lübbers, Joerg Stefanik, Patrick Braun, Thomas Kummetz, Alfons Dussmann, Klaus Uwe Rosenschild, Ahmed H. Hmimy
  • Patent number: 11742928
    Abstract: A method of operating a communication device includes: sweeping a plurality of first reception beams; measuring reference signals, received from another communication device, based on the plurality of first reception beams; estimating a downlink channel gain based on the measured reference signals and reception array response information corresponding to reception antenna characteristics of the communication device; generating a downlink channel related matrix based on the downlink channel gain and the reception array response information; determining a second reception beam based on the downlink channel related matrix; determining a transmission beam based on at least one of the downlink channel gain, the downlink channel related matrix, and the second reception beam; and performing communication with the other communication device using the second reception beam and the transmission beam.
    Type: Grant
    Filed: May 12, 2022
    Date of Patent: August 29, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jaein Kim, Jonggun Moon, Junho Lee, Huiwon Je, Seungjin Choi
  • Patent number: 11736268
    Abstract: Clock recovery from a serial data signal involves using a serializer/deserializer (SERDES) to produce a clock signal which periodically alternates between high and low output clock values. These high and low clock values are generated by outputting for each clock period a series of N digital bits including a plurality of low-level bits to form each low output clock value and a plurality of high-level bits to form each high output clock value. A sync pulse obtained from a sync word present in each frame of the serial data signal is used to periodically determine a frequency error of the clock signal. The frequency error is used as a basis to change a phase of the adjusted clock signal responsive to the frequency error.
    Type: Grant
    Filed: November 4, 2021
    Date of Patent: August 22, 2023
    Assignee: L3HARRIS TECHNOLOGIES, INC.
    Inventors: L. Carl Christensen, Reed P. Tidwell
  • Patent number: 11728856
    Abstract: Certain aspects of the present disclosure provide techniques for user equipment (UE) antenna panel distribution reporting. Particular aspects provide a method performed by a user equipment (UE), which generally includes determining a set of antenna panels of the UE for uplink antenna panel selection based on at least one criterion and transmitting a report to a base station (BS) including an indication of the determined set of antenna panels of the UE.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: August 15, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Qian Zhang, Yan Zhou, Tao Luo
  • Patent number: 11728870
    Abstract: Beam determination and beam activation may be used in wireless communications. An initial (e.g., default) TCI state pool, of a plurality of TCI state pools, may be used to receive one or more messages indicating a second TCI state pool for communicating signals between a wireless device and a base station. The one or more messages may comprise an indication of a TCI state pair (e.g., an uplink TCI state and a downlink TCI state) of the second TCI state pool.
    Type: Grant
    Filed: March 11, 2022
    Date of Patent: August 15, 2023
    Assignee: Comcast Cable Communications, LLC
    Inventors: Kai Xu, Hua Zhou, Esmael Hejazi Dinan, Yunjung Yi, Ali Cagatay Cirik, Hyoungsuk Jeon, Jonghyun Park, Nazanin Rastegardoost
  • Patent number: 11728863
    Abstract: Methods, systems, and devices for wireless communications are described that provide for antenna selection at a user equipment (UE). The UE may have a set of available antennas for uplink and downlink communications, and may select a first subset of antennas for uplink communications and a second subset of antennas for downlink communications. The first subset of antennas may be based on one or more uplink metrics, and the second subset of antennas may be based on the first subset of antennas and one or more downlink channel metrics, traffic amounts, or any combinations thereof.
    Type: Grant
    Filed: May 27, 2022
    Date of Patent: August 15, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Arash Ebadi Shahrivar, Peter Pui Lok Ang, Brian Clarke Banister, Yung-Yih Jian, Jianming Zhu, Raghu Narayan Challa, Alexei Yurievitch Gorokhov, Aamod Khandekar, Ruhua He
  • Patent number: 11728871
    Abstract: There are provided measures for enabling/realizing higher-layer beam management, e.g. beam failure detection or beam candidate detection in a higher layer such as a MAC entity. Such measures exemplarily comprise that a beam management timer is started when a (first) beam management instance indication from a lower layer is obtained, beam management is executed, wherein a beam management instance counter is incremented whenever a beam management instance indication from the lower layer is obtained and a beam management event is detected when the beam management instance counter reaches a beam management instance threshold before expiry of the beam management timer, and the beam management instance counter is reset upon expiry of the beam management timer.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: August 15, 2023
    Assignee: Nokia Technologies Oy
    Inventors: Samuli Heikki Turtinen, Timo Koskela
  • Patent number: 11728869
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine, based at least in part on at least one of a plurality of conditions being met, to switch from a static analog beamforming codebook to a dynamic analog beamforming beam weight calculation for selecting beam weights for communications between the UE and a base station. The UE may select the beam weights for the communications using the dynamic beam weight calculation. The UE may communicate, using the beam weights, with the base station. Numerous other aspects are described.
    Type: Grant
    Filed: November 12, 2021
    Date of Patent: August 15, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Vasanthan Raghavan, Tao Luo, Junyi Li
  • Patent number: 11722204
    Abstract: Certain aspects of the present disclosure provide to techniques for radio link monitoring (RLM), detecting beam failure, and beam failure recovery (BFR) using radio link monitoring reference signal (RML-RS) resources and beam failure recovery reference signal (BFR-RS) resources. An exemplary method by a user equipment (UE) may include obtaining a first configuration indicating one or more radio link monitoring reference signal (RLM-RS) resources and one or more beam failure recovery reference signal (BFR-RS) resources, wherein each RLM-RS resource corresponds to at least a first link, and each BFR-RS resource corresponds to at least a second link, obtaining a first indication that a first link quality for the first link is below a first threshold and a second link quality for the second link is above a second threshold, and taking action regarding a radio link failure (RLF) based on the indication.
    Type: Grant
    Filed: November 18, 2021
    Date of Patent: August 8, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Sumeeth Nagaraja, Tao Luo
  • Patent number: 11722201
    Abstract: The embodiments herein relate to method performed by a measurement device, the method comprising: receiving via higher layer signalling, information on resources or resource sets of one or more radio transmission devices transmitting one or more beam signals associated with said resources or resource sets; performing channel measurements of the one or more beam signals, per spatial filter or receiver beam of the measurement device; storing, over at least one time frame, the channel measurements into measurement groups, where each measurement group corresponds to the channel measurements performed using the same spatial filter of the measurement device; and reporting the measurement groups to a network node or correlating the measurements of each measurement group with reference data for each available time frame individually and reporting the result of the correlation to the network node. The embodiments also relate to a method performed by a network node.
    Type: Grant
    Filed: March 2, 2021
    Date of Patent: August 8, 2023
    Inventors: Thorsten Vaupel, Steffen Meyer, Mohammad Alawieh, Bastian Perner, Jürgen Hupp