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    Supporting high dimensional MU-MIMO beamforming by sounding multiple frames with different sets of antenna patterns
    32.
    发明授权
    Supporting high dimensional MU-MIMO beamforming by sounding multiple frames with different sets of antenna patterns 有权
    通过用不同的天线图案组发现多个帧来支持高维MU-MIMO波束成形

    公开(公告)号：US09124317B1

    公开(公告)日：2015-09-01

    申请号：US14263766

    申请日：2014-04-28

    Applicant: Broadcom Corporation

    Inventor： David Garrett ,  Jun Zheng ,  Nihar Jindal

    IPC: H04B7/02 ,  H04B7/04 ,  H04L25/02 ,  H04B7/12 ,  H04L1/06

    CPC classification number: H04B7/0617 ,  H04B7/0408 ,  H04B7/0452 ,  H04B7/0626 ,  H04B7/12 ,  H04L1/06 ,  H04L1/0618 ,  H04L25/0204 ,  H04L25/0224 ,  H04L25/0228

    Abstract: In some aspects, the disclosure is directed to methods and systems for performing channel estimation between a beamformer and a beamformee. A beamformer can determine that a beamformee is configured to perform channel estimation for up to a pre-configured number of transmit spatial streams from the beamformer. The pre-configured number of transmit spatial streams can be less than a plurality of transmit spatial streams of the beamformer. The beamformer can determine a plurality of subsets of transmit spatial streams from the plurality of transmit spatial streams. The beamformer can send a plurality of sounding frames to the beamformee for channel estimation based at least on the determined plurality of subsets of transmit spatial streams.

    Abstract translation: 在一些方面，本公开涉及用于在波束形成器和波束形成器之间执行信道估计的方法和系统。 波束形成器可以确定波束形成器被配置为执行来自波束形成器的高达预配置数量的发射空间流的信道估计。 预配置的发射空间流数可以小于波束形成器的多个发射空间流。 波束形成器可以从多个发射空间流中确定发射空间流的多个子集。 波束形成器可以至少基于确定的多个传输空间流子集，向波束形成器发送多个探测帧用于信道估计。

    CHANNEL ESTIMATION USING A MULTI-USER FRAME
    33.
    发明申请
    CHANNEL ESTIMATION USING A MULTI-USER FRAME 有权
    使用多用户帧的信道估计

    公开(公告)号：US20150236770A1

    公开(公告)日：2015-08-20

    申请号：US14270975

    申请日：2014-05-06

    Applicant: Broadcom Corporation

    Inventor： David Garrett ,  Nihar Jindal ,  Jun Zheng ,  Srinath Puducheri Sundaravaradhan

    IPC: H04B7/04 ,  H04B7/06 ,  H04L25/02

    CPC classification number: H04B7/0617 ,  H04B7/0452 ,  H04B7/0619 ,  H04L25/0204 ,  H04L25/0226

    Abstract: A systems and method of channel estimation can be used in wireless environments. The systems and method can: (a) determine, by a transmitter, a number of receivers with which to communicate wirelessly, the number of receivers being at least one and corresponding to at least a first receiver; and (b) generate, by the transmitter, a frame to transmit to the first receiver, the frame generated based on a total number of receivers that is higher than the determined number of receivers.

    Abstract translation: 可以在无线环境中使用信道估计的系统和方法。 系统和方法可以：（a）由发射机确定与无线通信的接收机的数量，接收机的数目至少为一个，并对应于至少第一接收机; 和（b）由所述发射机产生一帧以发送给所述第一接收机，所述帧基于接收机总数高于所确定的接收机数量而生成。

    METHOD AND SYSTEM FOR DETERMINING A LOCATION FOR A RF COMMUNICATION DEVICE BASED ON ITS PROXIMITY TO A MOBILE DEVICE
    35.
    发明申请
    METHOD AND SYSTEM FOR DETERMINING A LOCATION FOR A RF COMMUNICATION DEVICE BASED ON ITS PROXIMITY TO A MOBILE DEVICE 有权
    用于确定基于其对移动设备的接近的RF通信设备的位置的方法和系统

    公开(公告)号：US20130344808A1

    公开(公告)日：2013-12-26

    申请号：US14011416

    申请日：2013-08-27

    Applicant: BROADCOM CORPORATION

    Inventor： Dave Murray ,  Charles Abraham ,  Mark Buer ,  David Garrett ,  Jeyhan Karaoguz ,  David Lundgren

    IPC: H04B5/00

    CPC classification number: H04B5/0062 ,  G01S5/02 ,  H04W4/023 ,  H04W4/80 ,  H04W8/08

    Abstract: A mobile device may be operable to determine, based on a known location of the mobile device, a location for a RF communication device that communicates with the mobile device, whenever the mobile device is within proximate range of the RF communication device. The determined location for the RF communication device may be stored in a location database in a location server and/or a memory in the RF communication device. The stored location of the RF communication device may then be used to determine a location for other mobile devices that may communicate with the RF communication device and are within proximate range of the RF communication device. The RF communication device may comprise a radio-frequency identification (RFID) device and/or a near field communication (NFC) device. The determined location for the RF communication device may comprise the known location of the mobile device.

    Abstract translation: 每当移动设备处于RF通信设备的接近范围内时，移动设备可操作以基于移动设备的已知位置来确定与移动设备进行通信的RF通信设备的位置。 RF通信设备的确定位置可以存储在RF通信设备中的位置服务器和/或存储器中的位置数据库中。 然后可以将RF通信设备的存储位置用于确定可以与RF通信设备通信并且在RF通信设备的接近范围内的其他移动设备的位置。 RF通信设备可以包括射频识别（RFID）设备和/或近场通信（NFC）设备。 用于RF通信设备的确定位置可以包括移动设备的已知位置。

    MULTI-INPUT WIRELESS RECEIVER BASED ON RF SAMPLING TECHNIQUES
    36.
    发明申请
    MULTI-INPUT WIRELESS RECEIVER BASED ON RF SAMPLING TECHNIQUES 有权
    基于射频采样技术的多输入无线接收机

    公开(公告)号：US20160285617A1

    公开(公告)日：2016-09-29

    申请号：US14692361

    申请日：2015-04-21

    Applicant: Broadcom Corporation

    Inventor： Frank Van der Goes ,  Jiangfeng Wu ,  David Garrett

    IPC: H04L7/033 ,  H04B1/16

    CPC classification number: H04L7/0331 ,  H04B1/001 ,  H04B1/16 ,  H04B7/0837 ,  H04L7/0008 ,  H04L7/02 ,  H04L7/0334 ,  H04L7/0337

    Abstract: In some aspects, the disclosure is directed to methods and systems of a multi-input receiver. In one or more embodiments, a receiver receives a plurality of signals each via a respective one of a plurality of wireless channels. In one or more embodiments, a processing stage of the receiver combines the received plurality of signals into a combined signal for input to an analog-to-digital converter (ADC) of the receiver. In one or more embodiments, the ADC generates, at a predetermined sampling frequency, samples of the combined signal. In one or more embodiments, the receiver recovers from the generated samples at least one signal component corresponding to at least one of the plurality of signals.

    Abstract translation: 在一些方面，本公开涉及多输入接收机的方法和系统。 在一个或多个实施例中，接收机经由多个无线信道中的相应一个接收多个信号。 在一个或多个实施例中，接收机的处理级将所接收的多个信号组合成用于输入到接收机的模数转换器（ADC）的组合信号。 在一个或多个实施例中，ADC以预定采样频率产生组合信号的采样。 在一个或多个实施例中，接收机从所生成的采样中恢复与多个信号中的至少一个对应的至少一个信号分量。

    Using one or more past channel estimates for adjusting parameters, sensing object presence, or allowing association
    37.
    发明授权
    Using one or more past channel estimates for adjusting parameters, sensing object presence, or allowing association 有权
    使用一个或多个过去的信道估计来调整参数，感测对象存在或允许关联

    公开(公告)号：US09351179B2

    公开(公告)日：2016-05-24

    申请号：US14268677

    申请日：2014-05-02

    Applicant: Broadcom Corporation

    Inventor： David Garrett ,  Nihar Jindal ,  Jun Zheng

    IPC: H04W24/02 ,  H04L25/02

    CPC classification number: H04W24/02 ,  H04L25/0222 ,  H04L25/0224 ,  H04L25/0228 ,  H04W8/005 ,  H04W48/12

    Abstract: Systems and methods can analyze a present channel estimation and a previous channel estimation and/or two or more prior channel estimations to improve communication performance, sense environmental conditions, and make location and velocity determinations. The methods can include: (a) sending, by a transmitter, a first sounding frame and a second sounding frame to a receiver; (b) receiving, by the transmitter, a first channel estimation response from a receiver responsive to the first sounding frame, and a second channel estimation response from the receiver responsive to the second sounding frame; and (c) detecting, by the transmitter, based at least on the first channel estimation response and the second channel estimation response, if a change in characteristics of a channel between the transmitter and the receiver occurred between the first sounding frame and the second sounding frame.

    Abstract translation: 系统和方法可以分析当前信道估计和先前的信道估计和/或两个或多个先前的信道估计，以改善通信性能，感测环境条件，并进行位置和速度确定。 所述方法可以包括：（a）由发射机向接收机发送第一探测帧和第二探测帧; （b）由所述发射机响应于所述第一探测帧接收来自接收机的第一信道估计响应，以及响应于所述第二探测帧的来自所述接收机的第二信道估计响应; 以及（c）至少基于第一信道估计响应和第二信道估计响应，由发射机检测发射机和接收机之间的信道的特性的变化是否发生在第一探测帧和第二探测帧之间 帧。

    CUSTOMIZED ACQUISITION OF CONTENT BY A BROADBAND GATEWAY
    38.
    发明申请
    CUSTOMIZED ACQUISITION OF CONTENT BY A BROADBAND GATEWAY 有权
    通过宽带网关自定义获取内容

    公开(公告)号：US20150312628A1

    公开(公告)日：2015-10-29

    申请号：US14792102

    申请日：2015-07-06

    Applicant: Broadcom Corporation

    Inventor： Jeyhan KARAOGUZ ,  Xuemin CHEN ,  Wael William DIAB ,  David Garrett ,  David LUNDGREN ,  Rich PRODAN

    IPC: H04N21/45 ,  H04N21/61 ,  H04N21/472 ,  H04N21/4402 ,  H04N21/462

    CPC classification number: H04N21/4516 ,  H04N21/440218 ,  H04N21/4532 ,  H04N21/4622 ,  H04N21/47202 ,  H04N21/6125

    Abstract: Aspects of a method and system for customized acquisition of content by a broadband gateway are provided. A broadband gateway may be operable to determine options for acquiring particular content. The broadband gateway may be operable to rank the determined options. The ranking may be based on one or more characteristics of the options and based on user-specified criteria. The broadband gateway may be operable to select one of the options for acquiring the content based on results of the ranking One or more of the options may be available via a first physical layer connection and one or more of the options may be available via a second physical layer connection. The gateway may rank the determined options based on attributes of one or more devices via which the particular content will be consumed.

    Abstract translation: 提供了一种通过宽带网关自定义获取内容的方法和系统。 宽带网关可以用于确定用于获取特定内容的选项。 宽带网关可以用于对所确定的选项进行排序。 排名可以基于选项的一个或多个特征并且基于用户指定的标准。 宽带网关可以可操作以基于排名的结果来选择用于获取内容的选项之一。一个或多个选项可以经由第一物理层连接可用，并且一个或多个选项可以经由第二个 物理层连接。 网关可以基于将消耗特定内容的一个或多个设备的属性对确定的选项进行排序。

    Digital Transmitter With Sample Rate Digital Predistortion
    39.
    发明申请
    Digital Transmitter With Sample Rate Digital Predistortion 审中-公开
    数字发射机采样率数字预失真

    公开(公告)号：US20150055731A1

    公开(公告)日：2015-02-26

    申请号：US14106251

    申请日：2013-12-13

    Applicant: Broadcom Corporation

    Inventor： David HARRIS ,  David Garrett

    IPC: H04B1/04 ,  H03F1/32

    CPC classification number: H04B1/0475 ,  H03F1/3241 ,  H03F3/189 ,  H03F3/245 ,  H03F2200/336 ,  H03F2201/3233 ,  H04B2001/0425

    Abstract: A digital transmitter with sample rate digital predistortion is disclosed. The transmitter includes a digital radio frequency (RF) signal generator configured to receive a baseband digital signal and transform the baseband digital signal to a digital RF signal. The digital transmitter further includes a sample rate predistorter configured to predistort the digital RF signal so as to compensate for distortion associated with the transmitter that is generated subsequent to an output of the sample rate predistorter, and resulting in a digital predistorted RF signal. The digital transmitter further includes a digital to analog converter configured to convert the digital predistorted RF signal to analog, resulting in an analog predistorted RF signal.

    Abstract translation: 公开了一种采样率数字预失真的数字发射机。 发射器包括数字射频（RF）信号发生器，其被配置为接收基带数字信号并将基带数字信号变换为数字RF信号。 数字发射机还包括采样率预失真器，其被配置为预失真数字RF信号，以补偿与采样率预失真器的输出之后产生的发射机相关联的失真，并导致数字预失真RF信号。 数字发射机还包括配置成将数字预失真RF信号转换为模拟的数模转换器，从而产生模拟预失真RF信号。

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