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1. 发明授权

US08966336B2 Selective merge and partial reuse LDPC (low density parity check) code construction for limited number of layers belief propagation (BP) decoding 有权
标题翻译：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置信传播（BP）解码
公开(公告)号：US08966336B2
公开(公告)日：2015-02-24
申请号：US13780372
申请日：2013-02-28
申请人： Broadcom Corporation
发明人： Ba-Zhong Shen , Andrew J. Blanksby , Jason A. Trachewsky
IPC分类号： H03M13/11 , H03M13/13 , H03M13/03 , H03M13/00 , H04L1/00 , H03M13/33
CPC分类号： H03M13/616 , H03M13/033 , H03M13/1137 , H03M13/114 , H03M13/1148 , H03M13/116 , H03M13/13 , H03M13/635 , H03M13/6516 , H04L1/0057
摘要： 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.
摘要翻译：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。

2. 发明授权

US08964521B2 Method and system for compromise greenfield preambles for 802.11N 有权
标题翻译： 802.11N的绿地前导码的方法和系统
公开(公告)号：US08964521B2
公开(公告)日：2015-02-24
申请号：US14251983
申请日：2014-04-14
申请人： Broadcom Corporation
发明人： Christopher J. Hansen , Rajendra T. Moorti , Jason A. Trachewsky
IPC分类号： H04J11/00 , H04B7/06 , H04B7/02 , H04L5/00 , H04B7/04 , H04L25/02 , H04L27/26
CPC分类号： 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
摘要： 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.
摘要翻译：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保持用于通过以较低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。

3. 发明申请

US20130308486A1 HIGH DATA THROUGHPUT WIRELESS LOCAL AREA NETWORK RECEIVER 有权
公开(公告)号：US20130308486A1
公开(公告)日：2013-11-21
申请号：US13949765
申请日：2013-07-24
申请人： Broadcom Corporation
发明人： Rajendra Tushar Moorti , Christopher J. Hansen , Jason A. Trachewsky
IPC分类号： H04W24/02
CPC分类号： 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
摘要： 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.

4. 发明申请

US20150163650A1 WLAN TRANSMITTER HAVING HIGH DATA THROUGHPUT 有权
标题翻译：具有高数据传输功能的WLAN发射机
公开(公告)号：US20150163650A1
公开(公告)日：2015-06-11
申请号：US14623003
申请日：2015-02-16
申请人： BROADCOM CORPORATION
发明人： Christopher J. Hansen , Jason A. Trachewsky , Nambirajan Seshadri , Kelly Brian Cameron , Hau Thien Tran , Ba-Zhong Shen
IPC分类号： H04W4/18
CPC分类号： H04W4/18 , H04L1/0057 , H04L1/0059 , H04L1/0065 , H04L1/0066 , H04L1/0068 , H04L1/0071 , H04L1/0618 , H04L25/03866 , H04L27/2601 , H04W84/12 , H04W88/10
摘要： A wireless local area network (WLAN) transmitter includes a baseband processing module and a plurality of radio frequency (RF) transmitters. The processing module selects one of a plurality of modes of operation based on a mode selection signal. The processing module determines a number of transmit streams based on the mode selection signal. The processing of the data further continues by converting encoded data into streams of symbols in accordance with the number of transmit streams and the mode selection signal. A number of the plurality of RF transmitters are enabled based on the mode selection signal to convert a corresponding one of the streams of symbols into a corresponding RF signal such that a corresponding number of RF signals is produced.
摘要翻译：无线局域网（WLAN）发射机包括基带处理模块和多个射频（RF）发射机。处理模块基于模式选择信号选择多种操作模式中的一种。处理模块基于模式选择信号确定多个发送流。根据发送流的数量和模式选择信号，将编码数据转换为符号流，继续处理数据。基于模式选择信号启用多个RF发射机的数量，以将符号流中的相应一个码流转换为对应的RF信号，从而产生相应数量的RF信号。

5. 发明授权

US08621315B2 LDPC coding systems for 60 GHz millimeter wave based physical layer extension 有权
公开(公告)号：US08621315B2
公开(公告)日：2013-12-31
申请号：US13780947
申请日：2013-02-28
申请人： Broadcom Corporation
发明人： Jason A. Trachewsky , Ba-Zhong Shen , Andrew J. Blanksby , Joonsuk Kim
IPC分类号： H03M13/00 , H03M13/03
CPC分类号： H04L1/0041 , H03M13/116 , H03M13/1185 , H03M13/6544 , H03M13/655 , H04L1/005 , H04L1/0057 , H04L1/0065 , H04L1/0071
摘要： LDPC coding systems for 60 GHz millimeter wave based physical layer extension. LDPC (Low Density Parity Check) encoding in cooperation with sub-carrier interleaving, in the context of orthogonal frequency division multiplexing (OFDM), and appropriate symbol mapping is performed in accordance with transmit processing as may be performed within a communication device. In a receiving communication device, receive processing may be performed on a received signal based on the type of LDPC, sub-carrier interleaving, and symbol mapping thereof. The LDPC code employed in accordance with such LDPC encoding may have a partial-tree like structure. In addition, appropriate manipulation of the bits assigned to respective sub-carriers may be performed to ensure that the bits emplaced in the MSB (Most Significant Bit) location of various symbols has some desired diversity (e.g., from different codewords, from appropriately different locations within a given codeword, etc.).

6. 发明申请

US20130238953A1 Communication device architecture for in-place constructed LDPC (Low Density Parity Check) code 有权
标题翻译：用于就地构造的LDPC（低密度奇偶校验）码的通信设备架构
公开(公告)号：US20130238953A1
公开(公告)日：2013-09-12
申请号：US13872275
申请日：2013-04-29
申请人： BROADCOM CORPORATION
发明人： Andrew J. Blanksby , Ba-Zhong Shen , Jason A. Trachewsky
IPC分类号： H03M13/11
CPC分类号： 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
摘要： 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.
摘要翻译：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。

7. 发明申请

US20130212218A1 METHOD AND SYSTEM FOR DISTRIBUTED INFRASTRUCTURE FOR STREAMING DATA VIA MULTIPLE ACCESS POINTS 有权
标题翻译：用于通过多个访问点流动数据的分布式基础设施的方法和系统
公开(公告)号：US20130212218A1
公开(公告)日：2013-08-15
申请号：US13846776
申请日：2013-03-18
申请人： BROADCOM CORPORATION
发明人： Jeyhan Karaoguz , Hooman Honary , Nambirajan Seshadri , Jason A. Trachewsky
IPC分类号： H04W8/22
CPC分类号： H04W8/22 , H04L1/0003 , H04L1/0009 , H04L65/4092 , H04L65/601 , H04L65/80 , H04L67/04 , H04L69/14 , H04L2001/0092
摘要： 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.
摘要翻译：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。

8. 发明申请

US20130088992A1 HIGH DATA THROUGHPUT WIRELESS LOCAL AREA NETWORK RECEIVER 有权
公开(公告)号：US20130088992A1
公开(公告)日：2013-04-11
申请号：US13689985
申请日：2012-11-30
申请人： BROADCOM CORPORATION
发明人： Rajendra Tushar Moorti , Christopher J. Hansen , Jason A. Trachewsky
IPC分类号： H04W84/12 , H04W72/08
CPC分类号： 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
摘要： 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.

9. 发明授权

US09826373B2 WLAN transmitter having high data throughput 有权
公开(公告)号：US09826373B2
公开(公告)日：2017-11-21
申请号：US14623003
申请日：2015-02-16
申请人： BROADCOM CORPORATION
发明人： Christopher J. Hansen , Jason A. Trachewsky , Nambirajan Seshadri , Kelly Brian Cameron , Hau Thien Tran , Ba-Zhong Shen
IPC分类号： H04L27/36 , H04W4/18 , H04L1/00 , H04L1/06 , H04L25/03 , H04L27/26 , H04W84/12 , H04W88/10
CPC分类号： H04W4/18 , H04L1/0057 , H04L1/0059 , H04L1/0065 , H04L1/0066 , H04L1/0068 , H04L1/0071 , H04L1/0618 , H04L25/03866 , H04L27/2601 , H04W84/12 , H04W88/10
摘要： A wireless local area network (WLAN) transmitter includes a baseband processing module and a plurality of radio frequency (RF) transmitters. The processing module selects one of a plurality of modes of operation based on a mode selection signal. The processing module determines a number of transmit streams based on the mode selection signal. The processing of the data further continues by converting encoded data into streams of symbols in accordance with the number of transmit streams and the mode selection signal. A number of the plurality of RF transmitters are enabled based on the mode selection signal to convert a corresponding one of the streams of symbols into a corresponding RF signal such that a corresponding number of RF signals is produced.

10. 发明申请

US20160028450A1 ROBUST WIRELESS COMMUNICATION SYSTEM AND COMPONENTS THEREOF FOR PROCESSING A MESSAGE FROM TWO SOURCES 审中-公开
标题翻译：强大的无线通信系统及其组件，用于处理来自两个源的消息
公开(公告)号：US20160028450A1
公开(公告)日：2016-01-28
申请号：US14849278
申请日：2015-09-09
申请人： BROADCOM CORPORATION
发明人： Jason A. Trachewsky
IPC分类号： H04B7/02 , H04L5/00 , H04L1/06
CPC分类号： H04B7/026 , H04B7/022 , H04L1/06 , H04L5/0053 , H04L29/0653 , H04L69/22 , H04L2001/0097 , H04W88/02 , H04W88/08
摘要： A wireless communication system includes an access point and first and second stations. The first station transmits a first message that includes an address of a second station as a destination address and an address of the first station as a source address. The access point forwards the message including the address of the second station address as the destination address and the address of the first station as the source address. The second station receives the message from the first station during a first time interval and receives the first message from the access point during a second time interval. The second station processes the duplicate received message to produce inbound data.
摘要翻译：无线通信系统包括接入点和第一和第二站。第一站发送包括作为目的地址的第二站的地址的第一消息和作为源地址的第一站的地址。接入点将包括第二站地址的地址的消息作为目的地地址和作为源地址的第一站的地址进行转发。第二站在第一时间间隔期间从第一站接收消息，并且在第二时间间隔期间从接入点接收第一消息。第二站处理重复接收的消息以产生入站数据。

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