公开(公告)号：US09379837B2

公开(公告)日：2016-06-28

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: H04W4/00 ,  H04J11/00 ,  H04W16/14 ,  H04W52/16

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：US09370017B2

公开(公告)日：2016-06-14

申请号：US14202921

申请日：2014-03-10

Applicant: Broadcom Corporation

Inventor： Nihar Jindal ,  Murat Mese ,  Arogyaswami Paulraj

IPC: H04W72/04 ,  H04W72/12 ,  H04W16/14 ,  H04B7/02 ,  H04W16/24

CPC classification number: H04W72/121 ,  H04B7/024 ,  H04B7/0452 ,  H04W16/14 ,  H04W16/24 ,  H04W72/1226

Abstract: The present disclosure is directed to a system and method for selecting a sub-group of user terminals (UTs) among a group of UTs served by a sector of a cellular network to schedule independent data streams for transmission to over the same time-frequency interval. In one embodiment, the sub-group of UTs is selected to limit inter-user interference among the sub-group of UTs. In another embodiment, the sub-group of UTs is selected to limit inter-user interference experienced by a UT that is at or near the boundary of the sector that serves the sub-group of UTs.

Abstract translation: 本公开涉及一种用于在由蜂窝网络的扇区服务的一组UT中选择用户终端（UT）的子组的系统和方法，以调度独立的数据流以在相同的时间间隔上传输 。 在一个实施例中，UT的子组被选择以限制UT的子组之间的用户间干扰。 在另一个实施例中，UT的子组被选择以限制由服务于UT的子组的扇区边界处或附近的UT经历的用户间干扰。

公开(公告)号：US20160127108A1

公开(公告)日：2016-05-05

申请号：US14553550

申请日：2014-11-25

Applicant: Broadcom Corporation

Inventor： Nihar Jindal ,  Murat Mese

IPC: H04L5/14 ,  H04W72/04

CPC classification number: H04L5/14 ,  H04W72/0453 ,  H04W72/1226 ,  H04W72/1242

Abstract: In some aspects, the disclosure is directed to methods and systems for in-band full-duplex operation. A first device transmits a frame to a second device wirelessly within a first frequency band, in one or more embodiments. In one or more embodiments, the first device detects, while the transmission of the frame is ongoing, feedback from the second device within the first frequency band. In one or more embodiments, the feedback is in response to the ongoing transmission of the frame. In one or more embodiments, the first device determines, responsive to the feedback, whether to stop the ongoing transmission of the frame or to update a transmission parameter for the ongoing transmission within the first frequency band.

Abstract translation: 在一些方面，本公开涉及用于带内全双工操作的方法和系统。 在一个或多个实施例中，第一设备在第一频带内以无线方式将帧发送到第二设备。 在一个或多个实施例中，当帧的传输正在进行时，第一设备在第一频带内检测来自第二设备的反馈。 在一个或多个实施例中，反馈是响应帧的正在进行的传输。 在一个或多个实施例中，第一设备响应于反馈确定是否停止正在进行的帧的传输或者更新第一频带内正在进行的传输的传输参数。

公开(公告)号：US20160066318A1

公开(公告)日：2016-03-03

申请号：US14838452

申请日：2015-08-28

Applicant: BROADCOM CORPORATION

Inventor： Stephanie Felicia Pereira ,  Matthew James Fischer ,  Ron Porat ,  Nihar Jindal

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04L5/0007 ,  H04L5/0044 ,  H04L5/0055 ,  H04W74/006 ,  H04W74/06 ,  H04W88/08

Abstract: A wireless communication device (alternatively, device) includes a processor configured to support communications with other wireless communication device(s) and to generate and process signals for such communications. In some examples, the device includes a communication interface and a processor, among other possible circuitries, components, elements, etc. to support communications with other device(s) and to generate and process signals for such communications. A device generates and transmits a resource and association poll frame (ra-poll frame) to other device(s). The contents of ra-poll frame direct which of the other device(s) is authorized to respond to the device (e.g., authorized device(s)) and the manner in which they are authorized to respond. Authorized device(s) transmit responses that may include association request(s) and/or a resource request(s), among other types of communications. The device then generates and transmits acknowledgement(s) (ACK(s)) indicates successful receipt of any responses from the authorized device(s).

Abstract translation: 无线通信设备（可选地，设备）包括被配置为支持与其他无线通信设备的通信并且生成和处理用于这种通信的信号的处理器。 在一些示例中，设备包括通信接口和处理器以及其他可能的电路，组件，元件等，以支持与其他设备的通信，并且生成和处理用于这种通信的信号。 设备生成并发送资源和关联轮询帧（轮询框）到其他设备。 ra-poll帧的内容指示其他设备中的哪一个被授权对设备（例如，授权设备）进行响应以及它们被授权响应的方式。 授权设备可以传送响应，其中可能包括关联请求和/或资源请求以及其他类型的通信。 然后，设备产生并发送确认（ACK）指示从授权设备成功接收到任何响应。

公开(公告)号：US20150372739A1

公开(公告)日：2015-12-24

申请号：US14841378

申请日：2015-08-31

Applicant: Broadcom Corporation

Inventor： David Garrett ,  Jun Zheng ,  Nihar Jindal

IPC: H04B7/06

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.

公开(公告)号：US20150237513A1

公开(公告)日：2015-08-20

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。

公开(公告)号：US20150163073A1

公开(公告)日：2015-06-11

申请号：US14142654

申请日：2013-12-27

Applicant: Broadcom Corporation

Inventor： Nihar Jindal ,  Arogyaswami Paulraj ,  Louay Jalloul ,  Sam Alex ,  Amin Mobasher

IPC: H04L25/02 ,  H04B7/04

CPC classification number: H04L25/0204 ,  H04B7/0413 ,  H04B7/0617 ,  H04B7/0619 ,  H04L25/0228 ,  H04L25/025

Abstract: In an embodiment, a method of channel estimation is provided. The method includes determining a parametric model for a channel between a first transceiver and a second transceiver and transmitting a pilot signal to the second transceiver. The receiving transceiver is configured to determine a parameter of the parametric model based at least on the pilot signal and to estimate a channel transfer function coefficient for the channel based on the parameter and the parametric model.

Abstract translation: 在一个实施例中，提供了一种信道估计的方法。 该方法包括确定第一收发器和第二收发器之间的信道的参数模型，并将导频信号发送到第二收发器。 接收收发器被配置为至少基于导频信号来确定参数模型的参数，并且基于参数和参数模型来估计信道的信道传递函数系数。

公开(公告)号：US20150098423A1

公开(公告)日：2015-04-09

申请号：US14510510

申请日：2014-10-09

Applicant: BROADCOM CORPORATION

Inventor： Ron Porat ,  Nihar Jindal

IPC: H04W72/08 ,  H04W24/02

CPC classification number: H04W24/02 ,  H04L5/00 ,  H04L5/0037 ,  H04L5/0046 ,  H04L27/3488

Abstract: A wireless communication device includes a communication interface and a processor that operate to generate a first transmission stream by processing first information based on first parameter(s) and a second transmission stream by processing second information based on second parameter(s). In some examples, the second at least one parameter is relatively less robust than the first at least one parameter, and the second information augments the first information when combined with the first information. The wireless communication device then transmits the first transmission stream and the second transmission stream to at least one other wireless communication device. Examples of such parameters include forward error correction (FEC) code, error correction code (ECC), modulation coding set (MCS), modulation type including a mapping of constellation points arranged in a constellation, power (e.g., transmit (TX) power), orthogonal frequency division multiplexing (OFDM) configuration, and/or a multiple-input-multiple-output (MIMO) configuration.

Abstract translation: 无线通信设备包括通信接口和处理器，其通过基于第一参数处理第一信息和通过基于第二参数处理第二信息来处理第二传输流来操作以生成第一传输流。 在一些示例中，第二至少一个参数与第一至少一个参数相比不太可靠，并且当与第一信息组合时，第二信息增加第一信息。 无线通信设备然后将第一传输流和第二传输流发送到至少一个其他无线通信设备。 这种参数的示例包括前向纠错（FEC）码，纠错码（ECC），调制编码集（MCS），包括布置在星座图中的星座点的映射的调制类型，功率（例如，发射（TX）功率） 正交频分复用（OFDM）配置和/或多输入多输出（MIMO）配置。

公开(公告)号：US20140286238A1

公开(公告)日：2014-09-25

申请号：US14221438

申请日：2014-03-21

Applicant: BROADCOM CORPORATION

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

IPC: H04L12/931 ,  H04W80/00

CPC classification number: H04W80/00

Abstract: A wireless communication device is configured to generate frames based on any of a number of different frame formats for transmission to one or more other recipient wireless communication devices. The frame may be implemented to include data intended for two or more recipient devices. The device encodes first data intended for a first recipient device using first one or more coding parameters and encodes second data intended for a second recipient device using second one or more coding parameters. The manner by which the first and second data have been encoded is indicated within one or more other fields within the frames based on the selected frame format. In one example, a single preamble specifies the first and second one or more coding parameters. In another example, an initial preamble and one or more respective sub-preambles specify the first and second one or more coding parameters.

Abstract translation: 无线通信设备被配置为基于用于传输到一个或多个其他接收者无线通信设备的多个不同帧格式中的任何一个来生成帧。 该帧可以被实现为包括用于两个或更多个接收设备的数据。 设备使用第一个或多个编码参数来编码用于第一接收方设备的第一数据，并使用第二个一个或多个编码参数对用于第二接收方设备的第二数据进行编码。 基于选择的帧格式，在帧内的一个或多个其他字段内指示第一和第二数据被编码的方式。 在一个示例中，单个前导码指定第一和第二一个或多个编码参数。 在另一示例中，初始前同步码和一个或多个相应的子前导码指定第一和第二个一个或多个编码参数。