公开(公告)号：US11990966B2

公开(公告)日：2024-05-21

申请号：US17957563

申请日：2022-09-30

申请人： Huawei Technologies Co., Ltd.

发明人： Jian Yu ,  Weimin Wu ,  Jing Dai

IPC分类号： H04L27/28 ,  H04B7/06

CPC分类号： H04B7/0626 ,  H04B7/0617

摘要： A channel state information feedback method and an apparatus to flexibly feed back channel state information, to implement balance between feedback overheads and feedback precision of the channel state information. The method includes sending a media access control (MAC) frame, where the MAC frame includes a processing mode bitmap, every n bits in the processing mode bitmap correspond to one feedback unit, and a value of the n bits is used to indicate a processing mode of channel state information of the corresponding feedback unit; and receiving a beamforming report, where the beamforming report includes one or more feedback fields, each feedback field corresponds to one feedback unit, the feedback field includes channel state information of the corresponding feedback unit, and the channel state information included in the feedback field is processed in a processing mode indicated by the processing mode bitmap.

公开(公告)号：US11962446B2

公开(公告)日：2024-04-16

申请号：US17769315

申请日：2019-10-15

申请人： BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.

发明人： Yang Liu

IPC分类号： H04K1/10 ,  H04L27/26 ,  H04L27/28 ,  H04W72/0453 ,  H04W74/00 ,  H04W74/0833

CPC分类号： H04L27/26025 ,  H04W72/0453 ,  H04W74/002 ,  H04W74/0833

摘要： A method and an apparatus for configuring a physical random access channel are provided. The method includes: receiving a pattern identifier configured by an access network device, where the pattern identifier configures a first physical resource configuration pattern of the physical random access channel corresponding to a first subcarrier spacing in a frequency domain; determining a second subcarrier spacing of a target cell; and determining a second physical resource configuration pattern of the physical random access channel corresponding to the second subcarrier spacing in the frequency domain according to the pattern identifier and the second subcarrier spacing.

公开(公告)号：US20230388172A1

公开(公告)日：2023-11-30

申请号：US18249778

申请日：2021-10-19

申请人： Vreste Elektronik Sanayi ve Ticaret A.S. ,  Koc University

发明人： Ali Tugberk Dogukan ,  Ertugrul Basar ,  Basak Ozbakis

IPC分类号： H04L27/28 ,  H04L27/26

CPC分类号： H04L27/28 ,  H04L27/2602

摘要： Methods and techniques are described for increasing data rate at a high error performance in wireless transmission. A plurality of groups of p bits, wherein p is an integer greater than 1, is obtained. A transmission signal is generated, which includes, for a group of p bits dividing the group of p bits into a first subgroup of p1 bits and a second subgroup of p2 bits, wherein p1 and p2 are integers greater than zero. Based on the p1 bits, a sequence of modulation schemes is selected from a plurality of predetermined sequences of modulation schemes. The predetermined sequences are mutually different, and each of the predetermined sequences has length R, wherein R is an integer greater than 1. The p2 bits onto R subcarriers are mapped respectively by means of the R modulation schemes of the selected sequence. Finally, the generated transmission signal is transmitted.

公开(公告)号：US11831569B2

公开(公告)日：2023-11-28

申请号：US17572876

申请日：2022-01-11

申请人： Northeastern University

发明人： Tommaso Melodia ,  Giuseppe Enrico Santagati

IPC分类号： H04L27/28 ,  H04L5/00 ,  H04B13/00 ,  H04B11/00 ,  H04L1/00 ,  H04L27/00 ,  H04L27/26 ,  H04L27/20 ,  H04L27/36

CPC分类号： H04L5/0012 ,  H04B11/00 ,  H04B13/005 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0057 ,  H04L27/0008 ,  H04L27/2602 ,  H04L27/2626 ,  H04L27/2053 ,  H04L27/362

摘要： A system and method for transmitting data ultrasonically through biological tissue employs a network of a plurality of nodes, at least a portion of the nodes implantable within the biological tissue. At least one implanted node includes a transmitter having an orthogonal frequency division multiplex signal generator to encode an ultrasonic signal for transmission through the biological tissue to an ultrasonic receiver at another node.

公开(公告)号：US20230291631A1

公开(公告)日：2023-09-14

申请号：US18173612

申请日：2023-02-23

申请人： QUALCOMM Incorporated

发明人： Jialing Li CHEN ,  Kanke WU ,  Bin TIAN

IPC分类号： H04L27/28 ,  H04L1/00 ,  H04L27/20

CPC分类号： H04L27/28 ,  H04L1/0003 ,  H04L27/2007

摘要： This disclosure provides methods, devices and systems for increasing the transmit power of wireless communication devices operating on power spectral density (PSD)-limited wireless channels. Some implementations more specifically relate to tone mapping techniques and packet designs that support duplicate (or “DUP mode”) transmissions to multiple users. In some implementations, an access point (AP) may transmit a PPDU that includes first user data and second user data, where at least the first user data is transmitted in a DUP mode. As such, the first user data may be mapped to a number (N) of tones spanning a first RU in accordance with a dual carrier modulation (DCM) scheme, and a duplicate copy of the first user data may be mapped to N tones spanning a second RU in accordance with the DCM scheme. In some implementations, the second user data also may be transmitted in a DUP mode.

公开(公告)号：US11695606B2

公开(公告)日：2023-07-04

申请号：US17549544

申请日：2021-12-13

申请人： Huawei Technologies Co., Ltd.

发明人： Wenquan Hu ,  Bengt Lindoff ,  Jingxin Wei ,  Neng Wang ,  Qian Zhang

IPC分类号： H04L27/28 ,  H04L27/26 ,  H04L5/00 ,  H04L27/00

CPC分类号： H04L27/2613 ,  H04L5/001 ,  H04L27/0014 ,  H04L27/2607 ,  H04L27/2626 ,  H04L27/2657 ,  H04L27/2675

摘要： The disclosure relates to performing phase compensation at a transmitter. A processing device for a network access node generates a phase compensated modulation symbol based on at least one first modulation symbol and at least on one of a frequency offset parameter and a time offset parameter. The frequency offset parameter may be determined based on an offset between a reference frequency f0 and a DC (0 Hz) frequency such that the frequency offset parameter corresponds to the reference frequency f0. Also, the reference frequency f0 can be at least partly based on the carrier of up-conversion frequency used by the processing device and the reference frequency f0 can be the carrier for up-conversion frequency. The phase compensated symbol is transmitted to a receiver, such as a client device. Furthermore, the disclosure also relates to corresponding methods and a computer program.

公开(公告)号：US11695503B2

公开(公告)日：2023-07-04

申请号：US17394601

申请日：2021-08-05

申请人： MICRON TECHNOLOGY, INC.

发明人： Fa-Long Luo ,  Jaime Cummins ,  Jeremy Chritz ,  Tamara Schmitz

IPC分类号： H04K1/10 ,  H04L27/28 ,  H04L1/00 ,  H04L27/00 ,  H04L27/26 ,  H04B1/04

CPC分类号： H04L1/0045 ,  H04L1/0041 ,  H04L1/0057 ,  H04L1/0071 ,  H04L27/0008 ,  H04L27/2628 ,  H04L27/2646 ,  H04B2001/0408 ,  H04L27/26414 ,  H04L27/26416

摘要： Examples described herein include systems and methods which include wireless devices and systems with examples of mixing input data with coefficient data specific to a processing mode selection. For example, a computing system with processing units may mix the input data for a transmission in a radio frequency (RF) wireless domain with the coefficient data to generate output data that is representative of the transmission being processed according to a specific processing mode selection. The processing mode selection may include a single processing mode, a multi-processing mode, or a full processing mode. The processing mode selection may be associated with an aspect of a wireless protocol. Examples of systems and methods described herein may facilitate the processing of data for 5G wireless communications in a power-efficient and time-efficient manner.

公开(公告)号：US11476910B2

公开(公告)日：2022-10-18

申请号：US17257797

申请日：2019-07-02

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Seijoon Shim ,  Chongdon Kim ,  Hayoung Yang ,  Chanho Choi

IPC分类号： H04L27/28 ,  H04B7/06 ,  H04B7/0456 ,  H04L5/00

摘要： Disclosed is a 5G or pre-5G communication system for supporting a data transmission rate higher than that of a 4G system such as LTE. According to one embodiment, disclosed is a method by which a base station performs downlink beamforming in a wireless access system, comprising the steps of, receiving, from a terminal, information related to a channel state, checking, on the basis of the information related to a channel state, channel state information estimated by subcarrier group unit, acquiring analog beamforming information and digital beamforming information on the basis of the channel state information, performing, by subcarrier group unit, hybrid beamforming in which the analog beamforming and the digital beamforming are combined, on the basis of the analog beamforming information and the digital beamforming information, and transmitting subcarrier group information corresponding to the subcarrier group, wherein the number of subcarriers in the subcarrier group is no more than the number of subcarriers included in one resource block.

公开(公告)号：US11418242B2

公开(公告)日：2022-08-16

申请号：US17239701

申请日：2021-04-26

申请人： Xiaobo Zhang

发明人： Xiaobo Zhang

IPC分类号： H04K1/10 ,  H04L27/28 ,  H04B7/06 ,  H04B7/0456 ,  H04L5/00

摘要： The disclosure provides a method and a device for multi-antenna transmission in a base station and a User Equipment (UE). The UE, in turn, receives a first higher-layer signaling, monitors a first-type physical layer signaling in a first radio resource pool, and receives second downlink information in a second radio resource pool. The first higher-layer signaling is used for determining first information and second information, and the first information is used for multi-antenna related receiving in the first radio resource pool. The first-type physical layer signaling is detected, and the first-type physical layer signaling is used for multi-antenna related receiving in the second radio resource pool, or, the first-type physical layer signaling is not detected, and the second information is used for multi-antenna related receiving in the second radio resource pool. The second radio resource pool is related to the first radio resource pool.

公开(公告)号：US11356160B2

公开(公告)日：2022-06-07

申请号：US16960011

申请日：2018-12-28

申请人： LG ELECTRONICS INC.

发明人： Sungjin Park ,  Jinmin Kim ,  Sunwoong Yun ,  Jinsoo Choi

IPC分类号： H04L27/28 ,  H04B7/06 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/26 ,  H04W84/12

摘要： Proposed are a method and an apparatus for transmitting a signal by performing MIMO beamforming in a wireless LAN system. Specifically, a first STA performs MIMO beamforming during a second STA and TDD-based SP. The first STA transmits a signal to the second STA on the basis of a result of the MIMO beamforming. The SP includes a plurality of TDD slots. The MIMO beamforming includes a first sub-step and a second sub-step. In the first sub-step, after receiving a first MIMO beamforming setup frame from the second STA, the first STA transmits a second MIMO beamforming setup frame in the first allocated TDD slot among the TDD slots allocated to the first STA. In the second sub-step, after receiving a first MIMO beamforming feedback frame from the second STA, the first STA transmits a second MIMO beamforming feedback frame in a first allocated TDD slot among the TDD slots allocated to the first STA.