公开(公告)号：US20150222406A1

公开(公告)日：2015-08-06

申请号：US14248220

申请日：2014-04-08

Applicant: BROADCOM CORPORATION

Inventor： Jun Zheng ,  Nihar Jindal ,  David Christopher Garrett

IPC: H04L5/00 ,  H04B7/06 ,  H04B7/04

CPC classification number: H04L5/0055 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0626 ,  H04L1/1685 ,  H04L1/1825 ,  H04L5/0057

Abstract: A method for improving multiple-user (MU) multiple-input-multiple-output (MIMO) acknowledge (ACK) protocol efficiency includes: receiving a sounding frame from a device, sending a feedback response, which includes quantized channel state information (CSI) to the device, receiving an MU physical-layer protocol data unit (PPDU) frame from the device, and in response to receiving the MU PPDU frame, sending an ACK frame to the device without receiving a polling frame prior to the ACK frame.

Abstract translation: 一种用于改善多用户（MU）多输入多输出（MIMO）确认（ACK）协议效率的方法包括：从设备接收探测帧，发送反馈响应，其包括量化信道状态信息（CSI） 向设备接收来自设备的MU物理层协议数据单元（PPDU）帧，并且响应于接收到MU PPDU帧，在ACK帧之前不接收到轮询帧来向设备发送ACK帧。

公开(公告)号：US20170244585A1

公开(公告)日：2017-08-24

申请号：US15061248

申请日：2016-03-04

Applicant: Broadcom Corporation

Inventor： Franciscus Maria Leonardus Van der Goes ,  David Christopher Garrett ,  Jan Mulder

IPC: H04L27/12 ,  H04B1/04

CPC classification number: H04L27/12 ,  H04B1/0007 ,  H04B1/0071 ,  H04B1/04 ,  H04L27/362

Abstract: A wireless transmitter processing chain includes digital radio frequency mixing circuitry to generate, in digital form, a representation of a transmit signal including multiple communication channels. From the digital representation, a wideband digital to analog converter creates the analog transmit signal that includes the communication channels. Individual mixers and filters follow, with mixing frequencies tuned to place the communication channels at the desired frequency centers.

公开(公告)号：US09680621B2

公开(公告)日：2017-06-13

申请号：US14248220

申请日：2014-04-08

Applicant: BROADCOM CORPORATION

Inventor： Jun Zheng ,  Nihar Jindal ,  David Christopher Garrett

IPC: H04L1/18 ,  H04L5/00 ,  H04B7/04 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/06 ,  H04L1/16

CPC classification number: H04L5/0055 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0626 ,  H04L1/1685 ,  H04L1/1825 ,  H04L5/0057

Abstract: A method for improving multiple-user (MU) multiple-input-multiple-output (MIMO) acknowledge (ACK) protocol efficiency includes: receiving a sounding frame from a device, sending a feedback response, which includes quantized channel state information (CSI) to the device, receiving an MU physical-layer protocol data unit (PPDU) frame from the device, and in response to receiving the MU PPDU frame, sending an ACK frame to the device without receiving a polling frame prior to the ACK frame.

公开(公告)号：US09419699B2

公开(公告)日：2016-08-16

申请号：US14243802

申请日：2014-04-02

Applicant: BROADCOM CORPORATION

Inventor： David Christopher Garrett ,  Jun Zheng ,  Nihar Jindal

IPC: H04W4/00 ,  H04B7/06 ,  H04B7/04

CPC classification number: H04B7/0623 ,  H04B7/0452 ,  H04B7/0617 ,  H04B7/0626

Abstract: A method for improving multiple-user (MU) multiple-input-multiple-output (MIMO) protocol efficiency includes transmitting an MU frame to multiple devices. The MU frame is beamformed to enable a corresponding one of the devices to receive an intended stream at high power. The MU frame includes an additional sounding-field. Acknowledgement (ACK) responses are received from at least some of the plurality of devices. Each of the ACK responses includes a sounding response frame including a channel feedback.

Abstract translation: 一种用于改善多用户（MU）多输入多输出（MIMO）协议效率的方法包括向多个设备发送MU帧。 MU帧被波束形成以使得相应的一个设备能够以高功率接收预期流。 MU帧包括附加的探测场。 从多个设备中的至少一些设备接收确认（ACK）响应。 ACK响应中的每一个包括包括信道反馈的探测响应帧。

公开(公告)号：US09374245B2

公开(公告)日：2016-06-21

申请号：US14020179

申请日：2013-09-06

Applicant: Broadcom Corporation

Inventor： David Christopher Garrett ,  Nihar Jindal ,  Eric Jon Ojard ,  Alfonso Cano Pleite

IPC: H04B1/38 ,  H04L27/10 ,  H04L25/02 ,  H04L27/26 ,  H04B7/06

CPC classification number: H04L25/0204 ,  H04B7/0671 ,  H04L25/022 ,  H04L25/0224 ,  H04L27/263 ,  H04L27/265

Abstract: A radio device receives a band-limited signal and estimates signal components beyond the band edges to extend the signal and eliminate the band-limited effects. The extended signal is transformed to the time domain to produce an estimate of the true time domain channel.

Abstract translation: 无线电设备接收频带限制信号并估计超出频带边缘的信号分量以扩展信号并消除频带限制效应。 扩展信号被转换到时域以产生真实时域信道的估计。

公开(公告)号：US20150036772A1

公开(公告)日：2015-02-05

申请号：US14020179

申请日：2013-09-06

Applicant: Broadcom Corporation

Inventor： David Christopher Garrett ,  Nihar Jindal ,  Eric Jon Ojard ,  Alfonso Cano Pleite

IPC: H04L25/02 ,  H04B7/08

CPC classification number: H04L25/0204 ,  H04B7/0671 ,  H04L25/022 ,  H04L25/0224 ,  H04L27/263 ,  H04L27/265

Abstract: A radio device receives a band-limited signal and estimates signal components beyond the band edges to extend the signal and eliminate the band-limited effects. The extended signal is transformed to the time domain to produce an estimate of the true time domain channel.

Abstract translation: 无线电设备接收频带限制信号并估计超出频带边缘的信号分量以扩展信号并消除频带限制效应。 扩展信号被转换到时域以产生真实时域信道的估计。

公开(公告)号：US20140229099A1

公开(公告)日：2014-08-14

申请号：US13906237

申请日：2013-05-30

Applicant: Broadcom Corporation

Inventor： David Christopher Garrett ,  Brian Wacter ,  Hwa Chun Lee

IPC: H04W4/02

CPC classification number: H04W4/21 ,  G06Q10/063114 ,  G06Q10/1095 ,  H04W4/029

Abstract: Various configurations and arrangements of various location aware appointment management applications are disclosed. Location aware appointment management applications can track the real-time location of the appointment participants, calculate the estimated time of arrival of the appointment participants based on a variety of factors including, for example, the participants' distance from the appointment location, speed of travel to the appointment location, real-time traffic conditions of the appointment participants route of travel to the appointment location, real-time weather conditions, profile information on the participants travel habits, the participants' mode of transportation, public transportation schedules and on time data, etc. Based on the calculated estimated time of arrival, the location aware appointment management application can determine whether the appointment participants are likely to be on time and, if not, the application can determine and suggest alternative appointment locations and/or times at which all participants could make the appointment on-time.

Abstract translation: 公开了各种位置感知预约管理应用的各种配置和布置。 位置感知预约管理应用程序可以跟踪约会参与者的实时位置，根据各种因素计算约会参与者的预计到达时间，例如参与者与预约位置的距离，旅行速度 到预约位置，预约参与者到预约地点的旅行路线的实时交通状况，实时天气情况，参与者旅行习惯的个人资料信息，参与者的交通方式，公共交通时间表和准时数据 等等。根据计算出的预计到达时间，位置感知预约管理应用程序可以确定约会参与者是否可能准时，如果不是，应用程序可以确定和建议替代的约会位置和/或时间 所有参与者可按时预约。