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    METHOD AND SYSTEM FOR COMPROMISE GREENFIELD PREAMBLES FOR 802.11N
    4.
    发明申请
    METHOD AND SYSTEM FOR COMPROMISE GREENFIELD PREAMBLES FOR 802.11N 有权
    用于802.11N的强化绿色前缀的方法和系统

    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。

    METHOD AND SYSTEM FOR COMPROMISE GREENFIELD PREAMBLES FOR 802.11N
    5.
    发明申请
    METHOD AND SYSTEM FOR COMPROMISE GREENFIELD PREAMBLES FOR 802.11N 有权
    用于802.11N的强化绿色前缀的方法和系统

    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。

    Encoding system and method for a transmitter in wireless communications
    6.
    发明申请
    Encoding system and method for a transmitter in wireless communications 有权
    用于无线通信中发射机的编码系统和方法

    公开(公告)号：US20140105202A1

    公开(公告)日：2014-04-17

    申请号：US14132115

    申请日：2013-12-18

    Applicant: BROADCOM CORPORATION

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

    IPC: H04B7/06 ,  H04W84/12

    CPC classification number: H04B7/0689 ,  H03M13/1102 ,  H03M13/1515 ,  H03M13/27 ,  H03M13/2906 ,  H03M13/2936 ,  H03M13/2966 ,  H03M13/6362 ,  H04W84/12

    Abstract: Method and system encodes a signal according to a code rate that includes a ratio of uncoded bits to coded bits. An outer encoder encodes the signal into code words. An interleaver converts the code words into a byte sequence for wireless transmission. An inner encoder executes a convolutional code to generate an encoded signal. The encoded signal is transmitted over a plurality of subcarriers associated with a wide bandwidth channel having a spectral efficiency associated with the code rate. The outer encoder includes a Reed-Solomon encoder having a rate that increases the code rate of uncoded bits to coded bits.

    Abstract translation: 方法和系统根据包括未编码位与编码位的比率的码率对信号进行编码。 外部编码器将信号编码为码字。 交织器将码字转换成用于无线传输的字节序列。 内部编码器执行卷积码以产生编码信号。 经编码的信号在与具有与码率相关联的频谱效率的宽带宽信道相关联的多个子载波上传输。 外部编码器包括具有将未编码比特的码率增加到编码比特的速率的里德 - 所罗门编码器。

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