知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

243 records (took 0.039 seconds)

    Method and apparatus for constructing very high throughput long training field sequences
    31.
    发明授权
    Method and apparatus for constructing very high throughput long training field sequences 有权

    公开(公告)号：US10153933B2

    公开(公告)日：2018-12-11

    申请号：US15480643

    申请日：2017-04-06

    Applicant: QUALCOMM Incorporated

    Inventor： Lin Yang ,  Didier Johannes Richard Van Nee ,  Hemanth Sampath

    IPC: H04L27/26 ,  H04W52/32 ,  H04W84/12 ,  H04B7/0413

    Abstract: Techniques are provided for constructing or determining a training sequence as a part of transmission preamble to minimize (or at least reduce) a peak-to-average power ratio (PAPR) at a transmitting node. In one example, a long training field (LTF) sequence of a preamble is determined that combines a set of interpolating sequences with LTF tone values. The LTF tone values may cover at least a portion of bandwidth of a first size, with each of the LTF tone values repeated for different subcarriers. The phases of tones of the LTF sequence may be rotated per bandwidth of the first size and certain tones of the LTF sequence may have a stream of values at pilot locations. For example, the phases of tones of the LTF sequence may be rotated in an effort to reduce PAPR during a transmission of the LTF sequence.

    Uneven bit distributions for encoder parsing
    33.
    发明授权
    Uneven bit distributions for encoder parsing 有权

    公开(公告)号：US10069518B2

    公开(公告)日：2018-09-04

    申请号：US14920584

    申请日：2015-10-22

    Applicant: QUALCOMM Incorporated

    Inventor： Lin Yang ,  Bin Tian ,  Jialing Li Chen

    IPC: H03M13/35 ,  H04L1/00

    Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. In one aspect, an apparatus is configured determine a number of symbols in a data field. The apparatus is configured to distribute a first number of data bits to each encoder in a subset of encoders in a set of encoders based on the determined number of symbols. The apparatus is configured to distribute a second number of data bits to a last encoder in the set of encoders based on the determined number of symbols. The apparatus is configured to transmit data to a second wireless device. The data is encoded based on the distributed first and second number of data bits.

    Full bandwidth multicast indication to multiple users
    34.
    发明授权
    Full bandwidth multicast indication to multiple users 有权

    公开(公告)号：US09967073B2

    公开(公告)日：2018-05-08

    申请号：US15623181

    申请日：2017-06-14

    Applicant: QUALCOMM Incorporated

    Inventor： Lochan Verma ,  Bin Tian ,  Sameer Vermani ,  Lin Yang

    IPC: H04L5/00 ,  H04B7/0452 ,  H04W28/06 ,  H04W72/00 ,  H04W84/12 ,  H04L12/18

    CPC classification number: H04L5/005 ,  H04B7/0452 ,  H04L5/0094 ,  H04L12/189 ,  H04W28/06 ,  H04W72/005 ,  H04W84/12

    Abstract: Methods, systems, and devices for wireless communication are described. An access point (AP) may use wireless local area network (WLAN) signaling fields in a multiple user transmission preamble to communicate with a number of stations greater than a threshold. For example, the AP may determine that the number of stations is greater than the threshold and generate a compression indicator and an indication of the number of stations to include in a first signaling field. The AP may then generate a spatial configuration indicator in a second signaling field based on the number of stations and transmit the first and second signaling fields in a preamble of the multiple user transmission. Upon receiving the preamble, a station may identify the compression indicator and number of stations, and the spatial configuration indicator in the first and second signaling fields, and decode the multiple user transmission using a determined spatial decoding scheme.

    TRAINING SEQUENCE GENERATION FOR WIRELESS COMMUNICATION NETWORKS
    36.
    发明申请
    TRAINING SEQUENCE GENERATION FOR WIRELESS COMMUNICATION NETWORKS 有权
    无线通信网络的训练序列生成

    公开(公告)号：US20170041825A1

    公开(公告)日：2017-02-09

    申请号：US15227573

    申请日：2016-08-03

    Applicant: QUALCOMM Incorporated

    Inventor： Lin Yang ,  Bin Tian

    IPC: H04W28/06

    CPC classification number: H04W28/065 ,  H04L27/2613 ,  H04L27/262

    Abstract: Methods and apparatuses for communicating over a wireless communication network using a resource unit are disclosed herein. One method includes generating a high-efficiency long training (HE-LTF) field, based on at least one of a sequence x=[+1, +1, +1, −1, −1, −1, +1, −1, −1, +1, −1], a rotation pattern C=[c1−cy], a sequence M1=[c1.*x, c2.*x, c3.*x, c4.*x, c5.*x, c6.*x, c7.*x, c8.*x, c9.*x, c10.*x, c11.*x], a sequence M2=[+1, +1, +1, +1, +1, −1, −1, +1, +1, −1, +1, −1, +1], and a sequence M3=[+1, +1, +1, −1, −1, +1, −1]. The method further includes transmitting the HE-LTF field.

    Abstract translation: 本文公开了使用资源单元通过无线通信网络进行通信的方法和装置。 一种方法包括：基于序列x = [+ 1，+ 1，+ 1，-1，-1，-1，+ 1，...，...，...）中的至少一个生成高效长训练（HE-LTF） 1，-1，+1，-1]，旋转模式C = [c1-cy]，序列M1 = [c1。* x，c2。* x，c3。* x，c4。* x，c5。 * x，c6。* x，c7。* x，c8。* x，c9。* x，c10。* x，c11。* x]，序列M2 = [+ 1，+ 1，+ 1，+ ，+1，-1，-1，+1，+1，-1，+1，-1，+1]，序列M3 = [+ 1，+1，+ 1，-1， +1，-1]。 该方法还包括发送HE-LTF字段。

    METHODS AND APPARATUS FOR PACKET ACQUISITION IN MIXED-RATE WIRELESS COMMUNICATION NETWORKS
    37.
    发明申请
    METHODS AND APPARATUS FOR PACKET ACQUISITION IN MIXED-RATE WIRELESS COMMUNICATION NETWORKS 有权
    混合无线通信网络中分组获取的方法与设备

    公开(公告)号：US20160080973A1

    公开(公告)日：2016-03-17

    申请号：US14852207

    申请日：2015-09-11

    Applicant: QUALCOMM Incorporated

    Inventor： Bin Tian ,  Tao Tian ,  Sameer Vermani ,  Eric Pierre Rebeiz ,  Dung Ngoc Doan ,  Lin Yang ,  Rahul Tandra

    IPC: H04W28/06

    CPC classification number: H04L27/261

    Abstract: A method of wirelessly communicating a packet including a first portion for transmission over at least one channel of a first transmission type and a second portion for transmission over at least one channel of a second transmission type. In one aspect, the method includes generating, at a wireless device, a packet including a first portion having a first symbol duration. The packet further includes a second portion having a second symbol duration greater than the first. The second portion can include a plurality of repeated portions of the signal field, the repeated portions having the second symbol duration. The first portion includes a first training field. The method further includes prepending or appending a second training field to the first portion. The second training field has the second symbol duration. The method further includes transmitting the packet.

    Abstract translation: 一种无线地传送分组的方法，包括用于通过第一传输类型和第二部分的至少一个信道进行传输的第一部分，用于通过第二传输类型的至少一个信道进行传输。 在一个方面，该方法包括在无线设备处生成包括具有第一符号持续时间的第一部分的分组。 分组还包括具有大于第一符号持续时间的第二符号持续时间的第二部分。 第二部分可以包括信号场的多个重复部分，重复部分具有第二符号持续时间。 第一部分包括第一训练场。 该方法还包括向第一部分预先或附加第二训练场。 第二个训练场具有第二个符号持续时间。 该方法还包括发送分组。

    Systems and methods for phase rotating duplicate frames in wireless LAN transmission
    38.
    发明授权
    Systems and methods for phase rotating duplicate frames in wireless LAN transmission 有权
    无线LAN传输中相位旋转重复帧的系统和方法

    公开(公告)号：US09258163B2

    公开(公告)日：2016-02-09

    申请号：US14091052

    申请日：2013-11-26

    Applicant: QUALCOMM Incorporated

    Inventor： Lin Yang ,  Bin Tian ,  Sameer Vermani

    IPC: H04L27/26

    CPC classification number: H04L27/2621 ,  H04L27/2602 ,  H04L27/2613

    Abstract: Methods, devices, and computer program products for optimally phase rotating duplicate frames in wireless LAN transmissions are disclosed. In one aspect, phase rotation sequences may be chosen in order to minimize a peak-to-average power ratio (PAPR) of a frame or data unit, or of a portion of a frame or data unit, where the frame contains a plurality of identical frequency segments, such as a duplicate frame. The method involves selecting a frame bandwidth, and then selecting a phase rotation sequence based upon the frame bandwidth. The method further includes generating a frame including a number of identical 1 MHz frequency segments, and rotating some of those segments relative to other segments, based on the selected phase rotation sequence. The method further includes transmitting the frame.

    Abstract translation: 公开了用于无线LAN传输中的最佳相位旋转重复帧的方法，设备和计算机程序产品。 在一个方面，可以选择相位旋转序列，以便最小化帧或数据单元或帧或数据单元的一部分的峰均功率比（PAPR），其中帧包含多个 相同的频段，如重复帧。 该方法包括选择帧带宽，然后基于帧带宽选择相位旋转序列。 该方法还包括基于所选择的相位旋转序列生成包括多个相同的1MHz频率段的帧，以及相对于其他段旋转那些段中的一些段。 该方法还包括发送帧。

    Systems and methods for wireless communication of long data units
    39.
    发明授权
    Systems and methods for wireless communication of long data units 有权
    长数据单元无线通信的系统和方法

    公开(公告)号：US09088504B2

    公开(公告)日：2015-07-21

    申请号：US13710296

    申请日：2012-12-10

    Applicant: Qualcomm Incorporated

    Inventor： Lin Yang ,  Didier Johannes Richard Van Nee ,  Sameer Vermani ,  Hemanth Sampath

    IPC: H04W4/00 ,  H04L12/24 ,  H04L5/00 ,  H04L25/02 ,  H04L27/26

    CPC classification number: H04L41/16 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0091 ,  H04L25/0232 ,  H04L27/2602

    Abstract: Systems, methods, and devices for communicating long packets are described herein. In one aspect, an apparatus for wireless communication includes a receiver and a processor. The receiver wirelessly receives via wireless local area network a data unit comprising a plurality of training fields interposed between data symbols. The plurality of training fields includes a first training field followed by a second training field. The first training field includes a gain control sequence, and the second training field includes a channel estimation sequence. The processor decodes at least one data symbol based on the plurality of training fields. In another aspect, an apparatus for wireless communication includes a processor and a transmitter. The processor generates a data unit comprising a plurality of training fields inserted between data symbols, and the transmitter wirelessly transmits the data unit via wireless local area network.

    Abstract translation: 这里描述了用于传送长分组的系统，方法和设备。 一方面，一种用于无线通信的装置包括接收机和处理器。 接收机经由无线局域网无线地接收包括插入在数据符号之间的多个训练场的数据单元。 多个训练场包括跟随有第二训练场的第一训练场。 第一训练场包括增益控制序列，第二训练场包括信道估计序列。 处理器基于多个训练场解码至少一个数据符号。 在另一方面，一种用于无线通信的装置包括处理器和发射器。 处理器产生包括插入在数据符号之间的多个训练场的数据单元，并且发射机经由无线局域网无线地发送数据单元。

Patent Agency Ranking