公开(公告)号：US09066220B2

公开(公告)日：2015-06-23

申请号：US13846776

申请日：2013-03-18

Applicant: BROADCOM CORPORATION

Inventor： Jeyhan Karaoguz ,  Hooman Honary ,  Nambirajan Seshadri ,  Jason A. Trachewsky

IPC: G06F15/16 ,  H04W8/22 ,  H04L1/00 ,  H04L29/06 ,  H04L29/08

CPC classification number: H04W8/22 ,  H04L1/0003 ,  H04L1/0009 ,  H04L65/4092 ,  H04L65/601 ,  H04L65/80 ,  H04L67/04 ,  H04L69/14 ,  H04L2001/0092

Abstract: Methods and systems for distributed infrastructure for streaming data via multiple access points. Aspects of one method may include apportioning multimedia information among a plurality of transmitting devices based on feedback channel information received from a destination receiving device by, for example, a transmission controller device. The transmitting devices may transmit the multimedia information to the destination receiving device. A transmitting device that may not be apportioned multimedia information may transmit a probing signal. The destination receiving device may generate feedback channel information for a transmitting device, for example, based on the multimedia information or the probing signal received from the respective transmitting device. The apportioning of the multimedia information may be dynamically adjusted based on updated feedback channel information received from the destination receiving device.

Abstract translation: 用于通过多个接入点流式传输数据的分布式基础设施的方法和系统。 一种方法的方面可以包括基于通过例如传输控制器设备从目的地接收设备接收的反馈信道信息来在多个发送设备之间分配多媒体信息。 发送装置可以将多媒体信息发送到目的地接收装置。 可以不分配多媒体信息的发送设备可以发送探测信号。 目的地接收装置可以例如基于从各个发送装置接收的多媒体信息或探测信号，生成发送装置的反馈信道信息。 可以基于从目的地接收设备接收到的更新的反馈信道信息来动态调整多媒体信息的分配。

公开(公告)号：US20140219264A1

公开(公告)日：2014-08-07

申请号：US14251983

申请日：2014-04-14

Applicant: BROADCOM CORPORATION

Inventor： Christopher J. Hansen ,  Rajendra T. Moorti ,  Jason A. Trachewsky

IPC: H04B7/06 ,  H04B7/04

CPC classification number: H04B7/0667 ,  H04B7/02 ,  H04B7/024 ,  H04B7/028 ,  H04B7/0404 ,  H04B7/0413 ,  H04B7/0452 ,  H04B7/0486 ,  H04B7/0495 ,  H04B7/0669 ,  H04L5/0026 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0051 ,  H04L5/0053 ,  H04L25/0226 ,  H04L25/03929 ,  H04L27/2613 ,  H04L29/06102 ,  H04L29/0653 ,  H04L29/0863 ,  H04L67/147 ,  H04L69/161 ,  H04W52/0225 ,  H04W52/52 ,  H04W84/12 ,  Y02D70/142 ,  Y02D70/442

Abstract: Aspects of the invention described herein may enable a greenfield access mode in IEEE 802.11n WLAN systems in comparison to an alternative approach that may not provide greenfield access. The utilization of greenfield access may reduce the portion of time required to transmit data due to overhead comprising preamble fields and header fields. This may enable higher data throughput rates to be achieved. This may further enable more robust transmission of data by enabling comparable data rates to be maintained while reducing the coding rate of encoded transmitted data. The reduction of the coding rate may enable comparable data rates to be maintained for transmission via RF channels characterized by lower SNR while still achieving desired target levels of packet error rates. In another aspect of the invention, mixed mode access may be achieved while reducing the portion of time required for transmitting data due to overhead.

Abstract translation: 与可能不提供绿地访问的替代方法相比，本文所述的本发明的方面可以实现IEEE 802.11n WLAN系统中的绿地接入模式。 绿地访问的利用可以减少由于包括前导字段和报头字段的开销而发送数据所需的时间部分。 这可以实现更高的数据吞吐率。 这可以通过在减少编码的发送数据的编码率的同时保持可比较的数据速率来进一步实现数据的更鲁棒的传输。 编码率的降低可以使得能够维持用于通过以较低SNR表征的RF信道的传输的可比数据速率，同时仍然实现期望的目标级别的分组错误率。 在本发明的另一方面，可以在减少由于开销而发送数据所需的时间的部分的同时实现混合模式访问。

公开(公告)号：US20130286914A1

公开(公告)日：2013-10-31

申请号：US13931136

申请日：2013-06-28

Applicant: BROADCOM CORPORATION

Inventor： Stephen Palm ,  Edward H. Frank ,  Bruce E. Edwards ,  Jason A. Trachewsky

IPC: H04W52/02

CPC classification number: H04W52/0203 ,  H04W52/0216 ,  H04W74/02 ,  H04W74/06 ,  H04W74/08 ,  H04W84/12 ,  Y02D70/142 ,  Y02D70/22

Abstract: A Wireless Local Area Network (WLAN) system based upon peer-to-peer communications. A wireless terminal for peer-to-peer communications acts either as a WLAN master or as a WLAN slave. When the wireless terminal acts a master, the wireless terminal undertakes mastering duties that include transmitting a beacon interval in the frame cycle. When the wireless terminal is not tethered to a power source, mastering duties alternate according to a round-robin WLAN mastering cycle, wherein the wireless terminal acts the WLAN master during at least one frame cycle and acts the WLAN slave during other frame cycles to conserve an untethered power source of the wireless terminal.

Abstract translation: 基于点对点通信的无线局域网（WLAN）系统。 用于对等通信的无线终端作为WLAN主机或WLAN从设备。 当无线终端作为主机时，无线终端承担包括在帧周期中发送信标间隔的控制任务。 当无线终端不被连接到电源时，根据循环WLAN主控周期交替备用工作，其中无线终端在至少一个帧周期内对WLAN主机起作用，并且在其他帧周期期间对WLAN从属设备进行动作以节省 无线终端的无电源电源。

公开(公告)号：US20130259169A1

公开(公告)日：2013-10-03

申请号：US13903150

申请日：2013-05-28

Applicant: BROADCOM CORPORATION

Inventor： Jason A. Trachewsky

IPC: H04B7/04

CPC classification number: H04B7/0413 ,  H04B7/0851

Abstract: A receiver includes an antenna array that generates received signals from a first remote transmitter and a second remote transmitter, the antenna array having a beam pattern that is controllable based a control signal. A plurality of receiver sections process the received signals to generate down-converted signals. A receiver processing module, generates the control signal to control the beam pattern to a first pattern during a first time period for reception from the first remote transmitter, generates a first reception estimate based on the down-converted signals during the first time period, generates the control signal to control the beam pattern to a second pattern during a second time period for reception from the second remote transmitter, generates a second reception estimate based on the down-converted signals during the second time period, and generates inbound data based on the first reception estimate and the second reception estimate.

Abstract translation: 接收机包括从第一远程发射机和第二远程发射机产生接收信号的天线阵列，所述天线阵列具有基于控制信号可控的波束图案。 多个接收器部分处理所接收的信号以产生下变频信号。 一种接收机处理模块，在第一时间段期间产生控制信号以控制第一模式，以便从第一远程发射机进行接收，基于第一时间段内的下变频信号产生第一接收估计，产生 用于在第二时间段期间将波束图案控制为第二图案的控制信号用于从第二遥控发射机接收，基于在第二时间段期间的下变频信号产生第二接收估计，并且基于 第一接收估计和第二接收估计。

公开(公告)号：US20130039313A1

公开(公告)日：2013-02-14

申请号：US13622718

申请日：2012-09-19

Applicant: BROADCOM CORPORATION

Inventor： Christopher J. Hansen ,  Jason A. Trachewsky ,  Rajendra Tushar Moorti

IPC: H04W72/04

CPC classification number: H04W16/14 ,  H04L5/0023 ,  H04L5/0048 ,  H04L25/0226 ,  H04L27/2613 ,  H04W24/00 ,  H04W84/12 ,  H04W88/06

Abstract: A method for generating a preamble of a frame for a wide-bandwidth channel wireless communication begins by generating a legacy carrier detect field. The method continues by generating a channel sounding field, wherein the channel sounding field includes a plurality of tones within the wide-bandwidth channel, wherein a first set of the plurality of tones corresponds to tones of a legacy channel sounding field. The method continues by generating a legacy signal field, wherein, in time, the legacy signal field follows the channel sounding field, which follows the legacy carrier detect field.

Abstract translation: 用于生成用于宽带宽信道无线通信的帧的前导码的方法开始于生成传统载波检测字段。 该方法通过产生信道探测字段继续，其中信道探测字段包括宽带宽信道内的多个音调，其中多个音调的第一组对应于传统信道探测字段的音调。 该方法通过生成遗留信号字段而继续，其中，在时间上，传统信号字段跟随在传统载波检测字段之后的信道探测字段。

公开(公告)号：US09247439B2

公开(公告)日：2016-01-26

申请号：US13949765

申请日：2013-07-24

Applicant: Broadcom Corporation

Inventor： Rajendra Tushar Moorti ,  Christopher J. Hansen ,  Jason A. Trachewsky

IPC: H04W84/12 ,  H04B1/38 ,  H04B1/06 ,  H04W24/02 ,  H04W28/18 ,  H04W72/08 ,  H04L5/00 ,  H04L27/26 ,  H04W24/00 ,  H04W28/06

CPC classification number: H04W24/02 ,  H04B1/38 ,  H04L5/0023 ,  H04L5/0048 ,  H04L27/2605 ,  H04L27/2647 ,  H04W24/00 ,  H04W28/06 ,  H04W28/18 ,  H04W72/085 ,  H04W84/12 ,  Y10S370/901 ,  Y10S370/908

Abstract: A method for receiving a frame in a high data throughput wireless local area network begins by receiving a preamble of the frame via a channel in accordance with a default receiver filter mask. The processing continues by validating the preamble. The processing continues by, when the preamble is validated, interpreting the preamble to determine a high data throughput channel configuration. The processing continues by reconfiguring the default receiver filter mask in accordance with the high data throughput channel configuration to produce a reconfigured receiver filter mask. The processing continues by receiving a data segment of the frame in accordance with the reconfigured receiver filter mask.

公开(公告)号：US20150155889A1

公开(公告)日：2015-06-04

申请号：US14614521

申请日：2015-02-05

Applicant: BROADCOM CORPORATION

Inventor： Ba-Zhong Shen ,  Andrew J. Blanksby ,  Jason A. Trachewsky

IPC: H03M13/00 ,  H03M13/11

CPC classification number: H03M13/616 ,  H03M13/033 ,  H03M13/1137 ,  H03M13/114 ,  H03M13/1148 ,  H03M13/116 ,  H03M13/13 ,  H03M13/635 ,  H03M13/6516 ,  H04L1/0057

Abstract: Selective merge and partial reuse LDPC (Low Density Parity Check) code construction for limited number of layers Belief Propagation (BP) decoding. Multiple LDPC matrices may be generated from a base code, such that multiple/distinct LDPC coded signals may be encoded and/or decoded within a singular communication device. Generally speaking, a first LDPC matrix is modified in accordance with one or more operations thereby generating a second LDPC matrix, and the second LDPC matrix is employed in accordance with encoding an information bit thereby generating an LDPC coded signal (alternatively performed using an LDPC generator matrix corresponding to the LDPC matrix) and/or decoding processing of an LDPC coded signal thereby generating an estimate of an information bit encoded therein. The operations performed on the first LDPC matrix may be any one of, or combination of, selectively merging, deleting, partially re-using one or more sub-matrix rows, and/or partitioning sub-matrix rows.

Abstract translation: 选择性合并和部分重用LDPC（低密度奇偶校验）代码构造用于有限数量的层次信念传播（BP）解码。 可以从基本码产生多个LDPC矩阵，使得可以在单个通信设备内编码和/或解码多个/不同的LDPC编码信号。 一般来说，根据一个或多个操作来修改第一个LDPC矩阵，从而生成第二个LDPC矩阵，并且根据对信息比特的编码采用第二个LDPC矩阵，从而生成一个LDPC编码信号（或者使用一个LDPC生成器 对应于LDPC矩阵的矩阵）和/或LDPC编码信号的解码处理，从而生成其中编码的信息比特的估计。 在第一LDPC矩阵上执行的操作可以是选择性地合并，删除，部分地重新使用一个或多个子矩阵行和/或分割子矩阵行中的任何一个或组合。

公开(公告)号：US20150124794A1

公开(公告)日：2015-05-07

申请号：US14592140

申请日：2015-01-08

Applicant: BROADCOM CORPORATION

Inventor： Christopher J. Hansen ,  Rajendra T. Moorti ,  Jason A. Trachewsky

IPC: H04B7/06 ,  H04L27/26 ,  H04L5/00

CPC classification number: H04B7/0667 ,  H04B7/02 ,  H04B7/024 ,  H04B7/028 ,  H04B7/0404 ,  H04B7/0413 ,  H04B7/0452 ,  H04B7/0486 ,  H04B7/0495 ,  H04B7/0669 ,  H04L5/0026 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0051 ,  H04L5/0053 ,  H04L25/0226 ,  H04L25/03929 ,  H04L27/2613 ,  H04L29/06102 ,  H04L29/0653 ,  H04L29/0863 ,  H04L67/147 ,  H04L69/161 ,  H04W52/0225 ,  H04W52/52 ,  H04W84/12 ,  Y02D70/142 ,  Y02D70/442

Abstract: Aspects of the invention described herein may enable a greenfield access mode in IEEE 802.11n WLAN systems in comparison to an alternative approach that may not provide greenfield access. The utilization of greenfield access may reduce the portion of time required to transmit data due to overhead comprising preamble fields and header fields. This may enable higher data throughput rates to be achieved. This may further enable more robust transmission of data by enabling comparable data rates to be maintained while reducing the coding rate of encoded transmitted data. The reduction of the coding rate may enable comparable data rates to be maintained for transmission via RF channels characterized by lower SNR while still achieving desired target levels of packet error rates. In another aspect of the invention, mixed mode access may be achieved while reducing the portion of time required for transmitting data due to overhead.

Abstract translation: 与可能不提供绿地访问的替代方法相比，本文所述的本发明的方面可以实现IEEE 802.11n WLAN系统中的绿地接入模式。 绿地访问的利用可以减少由于包括前导字段和报头字段的开销而发送数据所需的时间部分。 这可以实现更高的数据吞吐率。 这可以通过在减少编码的发送数据的编码率的同时保持可比较的数据速率来进一步实现数据的更鲁棒的传输。 编码率的降低可以使得能够维持用于通过以较低SNR表征的RF信道的传输的可比数据速率，同时仍然实现期望的目标级别的分组错误率。 在本发明的另一方面，可以在减少由于开销而发送数据所需的时间的部分的同时实现混合模式访问。

公开(公告)号：US08799736B2

公开(公告)日：2014-08-05

申请号：US13872275

申请日：2013-04-29

Applicant: Broadcom Corporation

Inventor： Andrew J. Blanksby ,  Ba-Zhong Shen ,  Jason A. Trachewsky

IPC: H03M13/00

CPC classification number: H03M13/1102 ,  H03M13/033 ,  H03M13/1134 ,  H03M13/1137 ,  H03M13/116 ,  H03M13/1185 ,  H03M13/1188 ,  H03M13/618 ,  H03M13/6362 ,  H03M13/6393 ,  H03M13/6502 ,  H03M13/6516 ,  H03M13/6527 ,  H04L1/005 ,  H04L1/0057

Abstract: Communication device architecture for in-place constructed LDPC (Low Density Parity Check) code. Intelligent design of LDPC codes having similar characteristics there between allows for a very efficient hardware implementation of a communication device that is operative to perform encoding of respective information bit groups using more than one type of LDPC codes. A switching module can select any one of the LDPC codes within an in-place LDPC code for use by an LDPC encoder circuitry to generate an LDPC coded signal. Depending on which sub-matrices of a superimposed LDPC matrix are enabled or disabled, one of the LDPC matrices from within an in-place LDPC code matrix set may be selected. A corresponding, respective generator matrix may be generated from each respective LDPC matrix. Selection among the various LDPC codes may be in accordance with a predetermined sequence, of based operating conditions of the communication device or communication system.

Abstract translation: 用于就地构造的LDPC（低密度奇偶校验）码的通信设备架构。 具有相似特性的LDPC码的智能设计允许通信设备的非常有效的硬件实现，该通信设备可操作以使用多于一种类型的LDPC码执行各个信息位组的编码。 交换模块可以在就地LDPC码内选择任何一个LDPC码，供LDPC编码器电路使用以产生LDPC编码信号。 根据叠加的LDPC矩阵的哪些子矩阵被使能或禁用，可以选择来自就地内LDPC码矩阵集合的LDPC矩阵之一。 可以从每个相应的LDPC矩阵生成相应的相应的生成器矩阵。 各种LDPC码之间的选择可以与通信设备或通信系统的基于操作条件的预定顺序相一致。

公开(公告)号：US08798565B2

公开(公告)日：2014-08-05

申请号：US13903150

申请日：2013-05-28

Applicant: Broadcom Corporation

Inventor： Jason A. Trachewsky

IPC: H04B1/00

CPC classification number: H04B7/0413 ,  H04B7/0851

Abstract: A receiver includes an antenna array that generates received signals from a first remote transmitter and a second remote transmitter, the antenna array having a beam pattern that is controllable based a control signal. A plurality of receiver sections process the received signals to generate down-converted signals. A receiver processing module, generates the control signal to control the beam pattern to a first pattern during a first time period for reception from the first remote transmitter, generates a first reception estimate based on the down-converted signals during the first time period, generates the control signal to control the beam pattern to a second pattern during a second time period for reception from the second remote transmitter, generates a second reception estimate based on the down-converted signals during the second time period, and generates inbound data based on the first reception estimate and the second reception estimate.

Abstract translation: 接收器包括从第一远程发射器和第二远程发射器产生接收信号的天线阵列，所述天线阵列具有基于控制信号可控的波束图案。 多个接收器部分处理所接收的信号以产生下变频信号。 一种接收机处理模块，在第一时间段期间产生控制信号以控制第一模式，以便从第一远程发射机进行接收，基于第一时间段内的下变频信号产生第一接收估计，产生 用于在第二时间段期间将波束图案控制为第二图案的控制信号用于从第二遥控发射机接收，基于在第二时间段期间的下变频信号产生第二接收估计，并且基于 第一接收估计和第二接收估计。