公开(公告)号：US20150237639A1

公开(公告)日：2015-08-20

申请号：US14262328

申请日：2014-04-25

Applicant: Broadcom Corporation

Inventor： David Garrett ,  Jun Zheng ,  Nihar Jindal

IPC: H04W72/08 ,  H04W52/24

CPC classification number: H04W72/085 ,  H04L1/0003 ,  H04W52/241

Abstract: In some aspects, the disclosure is directed to methods and systems for transmitting packets (including but not limited to MU-MIMO packets). An access point communicating wirelessly with a plurality of devices can determine that a first packet for a first device of the plurality of devices has a first transmission duration. The access point can determine that a second packet for a second device of the plurality of devices has a second transmission duration shorter than the first transmission duration. The access point can adjust, based on the determination, a transmission power or a modulation and coding scheme to transmit the second packet during a third transmission duration. The third transmission duration can be greater than the second transmission duration.

Abstract translation: 在一些方面，本公开涉及用于传送分组（包括但不限于MU-MIMO分组）的方法和系统。 与多个设备无线通信的接入点可以确定多个设备中的第一设备的第一分组具有第一传输持续时间。 接入点可以确定多个设备中的第二设备的第二分组具有比第一传输持续时间短的第二传输持续时间。 接入点可以基于确定调整在第三传输持续时间期间发送第二分组的传输功率或调制和编码方案。 第三传输持续时间可以大于第二传输持续时间。

公开(公告)号：US20150222346A1

公开(公告)日：2015-08-06

申请号：US14243802

申请日：2014-04-02

Applicant: BROADCOM CORPORATION

Inventor： David Christopher GARRETT ,  Jun Zheng ,  Nihar Jindal

IPC: 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：US20150055568A1

公开(公告)日：2015-02-26

申请号：US14039462

申请日：2013-09-27

Applicant: Broadcom Corporation

Inventor： Nihar Jindal ,  Jun Shi ,  Sriram Sundararajan ,  Arya Behzad ,  Marcellus Forbes ,  Ling Su

IPC: H04B15/00 ,  H04L5/00

CPC classification number: H04B15/00 ,  H04L5/0048

Abstract: A communication device, such as a smart phone, includes transmit/receive logic to cancel an interfering signal component. The interfering signal component may originate from a communication interface on the device itself. For example, transmissions from the communication interface may interfere with received signals at other communication interfaces on the device. Transmit/receive logic on others of the communication interfaces may use known characteristics of the interfering signal component to cancel the interfering signal component.

Abstract translation: 诸如智能电话的通信设备包括用于消除干扰信号分量的发送/接收逻辑。 干扰信号分量可以来自设备本身的通信接口。 例如，来自通信接口的传输可能干扰设备上其他通信接口处的接收信号。 通信接口的其他发送/接收逻辑可以使用干扰信号分量的已知特征来消除干扰信号分量。

公开(公告)号：US20140369276A1

公开(公告)日：2014-12-18

申请号：US14302612

申请日：2014-06-12

Applicant: BROADCOM CORPORATION

Inventor： Ron Porat ,  Matthew James Fischer ,  Nihar Jindal ,  Vinko Erceg

IPC: H04W72/04 ,  H04W28/06

CPC classification number: H04L5/003 ,  H04L5/0007 ,  H04L5/0053

Abstract: A communication device includes a processor configured to generate OFDMA packets using various OFDMA packet structures and to transmit such OFDMA packets, via a communication interface, to at least one other communication device. The processor is also configured to receive, interpret, and process such OFDMA packets. One example of an OFDMA packet includes common SIG for two or more other wireless communication devices modulated across all sub-carriers of the OFDMA packet. The common SIG is followed by first SIG and first data for a first other wireless communication device modulated across first subset of the sub-carriers of the OFDMA packet and is also followed by second SIG and second data for a second other wireless communication device modulated across second subset of the sub-carriers of the OFDMA packet. Another example of an OFDMA packet includes the common SIG followed directly by first data and second data modulated as described above.

Abstract translation: 通信设备包括被配置为使用各种OFDMA分组结构生成OFDMA分组并且经由通信接口将这样的OFDMA分组发送到至少一个其他通信设备的处理器。 处理器还被配置为接收，解释和处理这样的OFDMA分组。 OFDMA分组的一个示例包括在OFDMA分组的所有子载波上调制的两个或更多个其他无线通信设备的公共SIG。 公共SIG之后是第一个SIG和第一个其他无线通信设备的第一个数据，该第一个数据是在OFDMA分组的子载波的第一子集上调制的，并且还跟随第二个SIG和第二个数据，用于另一个另外的无线通信设备 OFDMA分组的子载波的第二子集。 OFDMA分组的另一示例包括如上所述直接跟随第一数据和第二数据调制的公共SIG。

公开(公告)号：US20140307819A1

公开(公告)日：2014-10-16

申请号：US14213031

申请日：2014-03-14

Applicant: Broadcom Corporation

Inventor： Arogyaswami PAULRAJ ,  Murat Mese ,  Yan Wang ,  Nihar Jindal ,  Louay Jalloul ,  Amin Mobasher ,  Sam Alex

IPC: H04L5/00 ,  H04B7/04

CPC classification number: H04W72/0433 ,  H04B7/0413 ,  H04B7/0452 ,  H04B7/0617 ,  H04L5/0023 ,  H04L5/0092 ,  H04L5/0094 ,  H04W16/00 ,  H04W16/04 ,  H04W24/02 ,  H04W24/08 ,  H04W28/0215 ,  H04W72/04 ,  H04W88/08 ,  H04W88/10

Abstract: Systems and methods for channel assignment configuration in a multiple access point (AP) environment are provided. The multiple APs can be homogeneous or heterogeneous and can implement one or more radio access technologies (RATs), including Massive Multiple Input Multiple Output (M-MIMO) RATs. A channel assignment configuration for a user equipment (UE) can identify one or more communication channels to be established to serve the UE by one or more of the APs.

Abstract translation: 提供了多接入点（AP）环境中信道分配配置的系统和方法。 多个AP可以是同质的或异构的，并且可以实现一个或多个无线电接入技术（RAT），包括大规模多输入多输出（M-MIMO）RAT。 用户设备（UE）的信道分配配置可以识别一个或多个待建立的通信信道，以便由一个或多个AP服务于UE。

公开(公告)号：US20140286203A1

公开(公告)日：2014-09-25

申请号：US14192228

申请日：2014-02-27

Applicant: BROADCOM CORPORATION

Inventor： Nihar Jindal ,  Yong Liu ,  Matthew James Fischer ,  Ron Porat ,  Chiu Ngok Eric Wong ,  Vinko Erceg

IPC: H04L5/14

CPC classification number: H04J11/0026 ,  H04W16/14 ,  H04W52/16

Abstract: A wireless communication device includes communication interface configured to receive and transmit signals and a processor configured to generate and process such signals. The communication interface of the wireless communication device is configured to receive a first signal from a first other wireless communication device, and the processor of the wireless communication device is configured to process the first signal to determine one or more concurrent transmission parameters. The processor of the wireless communication device is configured to generate the second signal based on the one or more concurrent transmission parameters and direct the communication interface to transmit the second signal to a second other wireless communication device during receipt of the first signal from the first other wireless communication device. The wireless communication device may be configured to make such concurrent transmissions based on one or more considerations such as the power level of the first signal.

Abstract translation: 无线通信设备包括被配置为接收和发送信号的通信接口以及被配置为生成和处理这些信号的处理器。 无线通信设备的通信接口被配置为从第一其他无线通信设备接收第一信号，并且无线通信设备的处理器被配置为处理第一信号以确定一个或多个并发传输参数。 无线通信设备的处理器被配置为基于一个或多个并发传输参数产生第二信号，并且在第一个信号从第一个接收到第一个信号的接收期间指示通信接口将第二信号发送到第二个其他无线通信设备 无线通信设备。 无线通信设备可以被配置为基于诸如第一信号的功率电平的一个或多个考虑来进行这种并发传输。

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：US09467999B2

公开(公告)日：2016-10-11

申请号：US14204734

申请日：2014-03-11

Applicant: Broadcom Corporation

Inventor： Nihar Jindal ,  Louay Jalloul

IPC: H04W28/02 ,  H04W72/04 ,  H04B7/04 ,  H04W24/08 ,  H04L5/00 ,  H04W24/02 ,  H04W16/00 ,  H04B7/06 ,  H04W88/10 ,  H04W88/08 ,  H04W16/04

CPC classification number: H04W72/0433 ,  H04B7/0413 ,  H04B7/0452 ,  H04B7/0617 ,  H04L5/0023 ,  H04L5/0092 ,  H04L5/0094 ,  H04W16/00 ,  H04W16/04 ,  H04W24/02 ,  H04W24/08 ,  H04W28/0215 ,  H04W72/04 ,  H04W88/08 ,  H04W88/10

Abstract: Systems and methods for configuring base stations in a geographic region to handle specific respective types of data traffics are provided. The configuration of the base stations can be static, semi-static, or dynamic. User devices are associated with base stations based on their data traffic requirements. By configuring each base station for a particular traffic type, each base station can handle its corresponding traffic with lower complexity and using fewer resources.

Abstract translation: 提供了用于配置地理区域中的基站以处理特定相应类型的数据业务的系统和方法。 基站的配置可以是静态的，半静态的或动态的。 用户设备根据其数据流量要求与基站相关联。 通过为特定流量类型配置每个基站，每个基站可以以较低的复杂度处理其对应的流量并且使用更少的资源。

公开(公告)号：US09444138B2

公开(公告)日：2016-09-13

申请号：US14275291

申请日：2014-05-12

Applicant: Broadcom Corporation

Inventor： David Garrett ,  Jun Zheng ,  Nihar Jindal

IPC: H04B7/00 ,  H01Q3/24 ,  H04L5/00

CPC classification number: H01Q3/24 ,  H04B7/0617 ,  H04B7/0689 ,  H04L5/0048

Abstract: In some aspects, the disclosure is directed to methods and systems for transmitting to static and non-static devices. An access point having a plurality of antennas can send a plurality of sounding frames from the plurality of antennas to a plurality of devices. The access point can identify, based on responses to the plurality of sounding frames, at least one static device from the plurality of devices. The access point can assign, based on the responses to the plurality of sounding frames, to each of the at least one static device, a corresponding one of the plurality of antennas for operation in a directional mode for transmissions to the corresponding static device, and the remaining antennas from the plurality of antennas for operation in an omnidirectional mode.

Abstract translation: 在一些方面，本公开涉及用于传送到静态和非静态设备的方法和系统。 具有多个天线的接入点可以将多个探测帧从多个天线发送到多个设备。 接入点可以基于对多个探测帧的响应来识别来自多个设备的至少一个静态设备。 所述接入点可以基于对所述多个探测帧的响应，将所述至少一个静态设备中的每一个分配给所述多个天线中的相应一个天线，用于以定向模式操作以传输到相应的静态设备，以及 来自多个天线的剩余天线用于全向模式的操作。

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。