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    Technique for over-the-air non-linearity estimation
    1.
    发明授权
    Technique for over-the-air non-linearity estimation 有权

    公开(公告)号：US10588038B2

    公开(公告)日：2020-03-10

    申请号：US15446934

    申请日：2017-03-01

    Applicant: QUALCOMM Incorporated

    Inventor： Alecsander Eitan ,  Amichai Sanderovich ,  Elad Hadari

    IPC: H04W24/10 ,  H04B17/11 ,  H04B17/14 ,  H04L1/16 ,  H04L5/00 ,  H04L1/00 ,  H04L1/20

    Abstract: Systems and methods are provided for estimating non-linearity of a transmitter, a receiver or both based on measurements and/or feedback. The estimation of the non-linearity may be used at the transmitter, the receiver or both to tune one or more components to reduce non-linearity. In one aspect, a method for wireless communications comprises generating at least one training signal, and outputting the at least one training signal for transmission to a wireless node. The method also comprises receiving a feedback message from the wireless node, the feedback message providing feedback of the at least one training signal received at the wireless node. The method further comprises tuning at least one component based on the feedback message.

    Hybrid beam former
    2.
    发明授权
    Hybrid beam former 有权

    公开(公告)号：US10256894B2

    公开(公告)日：2019-04-09

    申请号：US15700461

    申请日：2017-09-11

    Applicant: QUALCOMM Incorporated

    Inventor： Alecsander Eitan ,  Amichai Sanderovich

    IPC: H04B7/08 ,  H01Q3/36

    Abstract: In certain aspects of the present disclosure, an apparatus for wireless communications is provided. The apparatus comprises a plurality of block circuits, wherein each one of the plurality of block circuits is configured to receive a respective plurality of signals from a respective subset of antenna elements of an antenna array. Each one of the plurality of block circuits comprises a respective plurality of phase shifters configured to shift phases of the respective plurality of signals to obtain a respective plurality of phase-shifted signals, and a respective combiner configured to combine the respective plurality of phase-shifted signals into a respective combined signal. The apparatus also comprises a plurality of time-delay elements configured to delay the combined signals to obtain a plurality of delayed combined signals, and a combiner configured to combine the plurality of delayed combined signals into a total combined signal.

    METHOD AND APPARATUS WITH COMMON DIGITAL PRE-DISTORTION COMPONENT FOR MULTIPLE TRANSMIT CHAINS
    3.
    发明申请
    METHOD AND APPARATUS WITH COMMON DIGITAL PRE-DISTORTION COMPONENT FOR MULTIPLE TRANSMIT CHAINS 审中-公开

    公开(公告)号：US20190068429A1

    公开(公告)日：2019-02-28

    申请号：US15688734

    申请日：2017-08-28

    Applicant: QUALCOMM Incorporated

    Inventor： Ariel Sagi ,  Igor Gutman ,  Alecsander Eitan

    IPC: H04L27/36 ,  H03F1/32

    Abstract: Certain aspects of the present disclosure are directed to digital predistortion (DPD) for use with a multi-chain wireless transmitter. In various examples described herein, the multi-chain transmitter is configured to use a single common DPD device or module for all transmit chains and to adjust the bias voltages of the power amplifiers of the separate transmit chains to operate at substantially the same backoff so the distortion to the corresponding output signals is similar. Since the distortion of the output of the different chains is similar, a single common predistortion may be applied using the single DPD device to a signal to be transmitted. Techniques are also described for calibrating the predistortion coefficients of the DPD to optimize (or otherwise set) the amount of distortion reduction to be achieved. The predistortion coefficients for the single DPD may be set or calibrated based on a particular directionality needed for beamforming.

    Channel bonding signaling to in-range devices
    4.
    发明授权
    Channel bonding signaling to in-range devices 有权

    公开(公告)号：US09876604B2

    公开(公告)日：2018-01-23

    申请号：US15135388

    申请日：2016-04-21

    Applicant: QUALCOMM Incorporated

    Inventor： Alecsander Eitan

    IPC: H04W4/00 ,  H04L1/00 ,  H04L29/06 ,  H04W74/08 ,  H04W84/12

    CPC classification number: H04L1/0011 ,  H04L69/22 ,  H04W74/0816 ,  H04W84/12

    Abstract: In certain aspects of the present disclosure, an apparatus for wireless communications comprises a processing system configured to generate a frame comprising first information indicating a plurality of channels to be used by the apparatus for a transmission and second information indicating a time duration of the transmission. The apparatus also comprises an interface configured to output the frame for wireless transmission on at least one of the plurality of channels. In certain aspects of the present disclosure, another apparatus receiving the frame may determine the plurality of channels based on the first information, compute a time duration based on the second information, and avoid transmitting on the plurality of channels for at least the computed time duration (e.g., to avoid collision).

    SYSTEM AND METHOD FOR TRANSMITTING DATA PAYLOAD IN WB SC, AGGREGATE SC, DUPLICATE SC, OFDM TRANSMISSION FRAMES
    6.
    发明申请
    SYSTEM AND METHOD FOR TRANSMITTING DATA PAYLOAD IN WB SC, AGGREGATE SC, DUPLICATE SC, OFDM TRANSMISSION FRAMES 有权
    用于在WB SC，AGGREGATE SC，DUPLICATE SC，OFDM传输帧中发送数据载荷的系统和方法

    公开(公告)号：US20160330738A1

    公开(公告)日：2016-11-10

    申请号：US15137861

    申请日：2016-04-25

    Applicant: QUALCOMM Incorporated

    Inventor： Alecsander Eitan

    IPC: H04W72/04 ,  H04L27/26 ,  H04L27/32 ,  H04L12/24

    CPC classification number: H04W72/0446 ,  H04L1/0079 ,  H04L1/0083 ,  H04L1/0084 ,  H04L5/0044 ,  H04L27/2602 ,  H04L27/261 ,  H04L27/2646 ,  H04L27/32 ,  H04L41/0896

    Abstract: An apparatus for wireless communications is disclosed. The apparatus includes a processing system configured to generate a frame having a preamble, a header, and a data payload, wherein the preamble, the header, and the data payload are decodable by a first device when operating according to a first protocol, wherein the preamble and the header are decodable by a second device when operating according to a second protocol, the data payload not being decodable by the second device when operating according to the second protocol; and an interface configured to output the frame for transmission.

    Abstract translation: 公开了一种用于无线通信的装置。 该装置包括：处理系统，被配置为生成具有前同步码，报头和数据有效载荷的帧，其中当根据第一协议操作时，前导码，报头和数据有效载荷可由第一设备解码，其中， 当根据第二协议操作时，前导码和报头可由第二设备解码，当根据第二协议操作时，数据有效负载不能被第二设备解码; 以及被配置为输出所述帧以进行传输的接口。

    Frame format for facilitating channel estimation for signals transmitted via bonded channels
    7.
    发明授权
    Frame format for facilitating channel estimation for signals transmitted via bonded channels 有权

    公开(公告)号：US10033564B2

    公开(公告)日：2018-07-24

    申请号：US15214255

    申请日：2016-07-19

    Applicant: QUALCOMM Incorporated

    Inventor： Alecsander Eitan ,  Amichai Sanderovich ,  Gal Basson

    IPC: H04L27/26 ,  H04L25/02

    Abstract: Certain aspects of the present disclosure provide an apparatus for wireless communications. The apparatus includes a processing system configured to generate a frame comprising a first channel estimation sequence for transmission via a first channel, a second channel estimation sequence for transmission via a second channel, and at least a first portion of a data payload for transmission via a third channel, wherein the first channel includes a first frequency band, wherein the second channel includes a second frequency band different from the first frequency band, and wherein the third channel includes a third frequency band that overlaps in frequency with the first and second frequency bands; and an interface configured to output the frame for transmission.

    FRAME FORMAT FOR FACILITATING CHANNEL ESTIMATION FOR SIGNALS TRANSMITTED VIA BONDED CHANNELS
    9.
    发明申请
    FRAME FORMAT FOR FACILITATING CHANNEL ESTIMATION FOR SIGNALS TRANSMITTED VIA BONDED CHANNELS 审中-公开
    用于促进通过绑定通道传输的信号的通道估计的框架格式

    公开(公告)号：US20170033958A1

    公开(公告)日：2017-02-02

    申请号：US15214255

    申请日：2016-07-19

    Applicant: QUALCOMM Incorporated

    Inventor： Alecsander Eitan ,  Amichai Sanderovich ,  Gal Basson

    IPC: H04L27/26 ,  H04L25/02

    CPC classification number: H04L27/2602 ,  H04L25/0202 ,  H04L27/2608

    Abstract: Certain aspects of the present disclosure provide an apparatus for wireless communications. The apparatus includes a processing system configured to generate a frame comprising a first channel estimation sequence for transmission via a first channel, a second channel estimation sequence for transmission via a second channel, and at least a first portion of a data payload for transmission via a third channel, wherein the first channel includes a first frequency band, wherein the second channel includes a second frequency band different from the first frequency band, and wherein the third channel includes a third frequency band that overlaps in frequency with the first and second frequency bands; and an interface configured to output the frame for transmission.

    Abstract translation: 本公开的某些方面提供了一种用于无线通信的装置。 该装置包括处理系统，该处理系统被配置为生成包括经由第一信道进行传输的第一信道估计序列，用于经由第二信道进行传输的第二信道估计序列，以及数据有效载荷的至少第一部分，用于经由 第三通道，其中所述第一通道包括第一频带，其中所述第二通道包括与所述第一频带不同的第二频带，并且其中所述第三通道包括频率与所述第一和第二频带重叠的第三频带 ; 以及被配置为输出所述帧以进行传输的接口。

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