HIGH THROUGHPUT COMMUNICATION STATION AND METHOD FOR COMMUNICATING OVER A PRIMARY CHANNEL AND A SECONDARY CHANNEL
    21.
    发明申请
    HIGH THROUGHPUT COMMUNICATION STATION AND METHOD FOR COMMUNICATING OVER A PRIMARY CHANNEL AND A SECONDARY CHANNEL 有权
    高通道通信站和通信主通道和二次通道的方法

    公开(公告)号:US20110044273A1

    公开(公告)日:2011-02-24

    申请号:US12916784

    申请日:2010-11-01

    IPC分类号: H04W72/04

    摘要: Embodiments of a high-throughput (HT) communication station (STA) and method for communicating over a primary and a secondary channel are generally described herein. In some embodiments, the high-throughput (HT) communication station (STA) comprises a physical layer (PHY) and a media-access control (MAC) layer to provide a data unit to the physical layer. The PHY layer may be configured to transmit a packet that includes the data unit over a channel bandwidth comprising a first channel and an additional channel in accordance with an OFDM communication technique. The packet may have a frame structure that includes a channel bandwidth parameter to indicate the channel bandwidth used, a modulation and coding parameter to indicate a modulation and coding scheme of the packet as transmitted over the channel bandwidth.

    摘要翻译: 这里通常描述用于通过主信道和辅信道进行通信的高吞吐量(HT)通信站(STA)和方法的实施例。 在一些实施例中,高吞吐量(HT)通信站(STA)包括物理层(PHY)和媒体访问控制(MAC)层,以向物理层提供数据单元。 PHY层可以被配置为根据OFDM通信技术在包括第一信道和附加信道的信道带宽上发送包括数据单元的分组。 分组可以具有包括用于指示所使用的信道带宽的信道带宽参数的帧结构,用于指示在信道带宽上发送的分组的调制和编码方案的调制和编码参数。

    MIMO transmitter and method for transmitting OFDM symbols
    26.
    发明授权
    MIMO transmitter and method for transmitting OFDM symbols 有权
    MIMO发射机和发射OFDM符号的方法

    公开(公告)号:US08705645B2

    公开(公告)日:2014-04-22

    申请号:US13489595

    申请日:2012-06-06

    IPC分类号: H04K1/10 H04L27/28

    摘要: An orthogonal-frequency division multiplexed (OFDM) transmitter is configured to transmit a data unit in accordance with a multiple-input multiple-output (MIMO) technique over a wideband channel comprising a 20 MHz channel and another channel using a plurality of spatially diverse antennas. The transmitter is further configured to include in the data unit, a parameter indicating a modulation and coding scheme and a parameter indicating number of spatial streams. Each of the spatial streams is encoded and beamformed for receipt by one or more different receiving stations.

    摘要翻译: 正交频分复用(OFDM)发射机被配置为根据多输入多输出(MIMO)技术在包括20MHz信道的宽带信道和使用多个空间多样的天线的另一信道上发送数据单元 。 发射机还被配置为在数据单元中包括指示调制和编码方案的参数以及指示空间流数量的参数。 每个空间流被编码并且被波束形成以便由一个或多个不同的接收站接收。

    OFDM TRANSMITTER WITH VARIABLE CODE BLOCK INTERLEAVER AND METHOD FOR OFDM COMMUNICATIONS WITH VARIABLE CODE BLOCK SIZES
    27.
    发明申请
    OFDM TRANSMITTER WITH VARIABLE CODE BLOCK INTERLEAVER AND METHOD FOR OFDM COMMUNICATIONS WITH VARIABLE CODE BLOCK SIZES 审中-公开
    具有可变码代码块的OFDM发射机和用于具有可变码区块的OFDM通信的方法

    公开(公告)号:US20120275539A1

    公开(公告)日:2012-11-01

    申请号:US13544120

    申请日:2012-07-09

    IPC分类号: H04B7/06

    摘要: A multi-antenna transmitter is configured for orthogonal frequency division multiplexed (OFDM) communications. The multi-antenna transmitter includes circuitry to receive an input bit sequence for code block segmentation including adding filler bits based on a selected code block size, a encoder to encode the bit sequence and an interleaver configurable to perform interleaving operations on blocks of bits of various code block sizes of the bit sequence. A controller is to select the code block size for the interleaver and OFDM transmitter circuitry to transmit OFDM symbols on subcarriers utilizing more than one antenna. The OFDM symbols are generated at least in part from the interleaved blocks.

    摘要翻译: 多天线发射机被配置用于正交频分复用(OFDM)通信。 多天线发射机包括用于接收用于码块分段的输入比特序列的电路,包括基于选择的码块大小添加填充比特,对比特序列进行编码的编码器和可配置为对各种比特的块进行交织操作的交织器 比特序列的码块大小。 控制器是选择用于交织器和OFDM发射机电路的码块大小,以利用多于一个天线的子载波上的OFDM符号。 至少部分地从交织块生成OFDM符号。

    OFDM transmitter with adaptive bit interleaver for adaptive bit loading and method for OFDM communications
    28.
    发明授权
    OFDM transmitter with adaptive bit interleaver for adaptive bit loading and method for OFDM communications 有权
    具有用于自适应比特加载的自适应比特交织器的OFDM发射机以及用于OFDM通信的方法

    公开(公告)号:US08218674B2

    公开(公告)日:2012-07-10

    申请号:US12492466

    申请日:2009-06-26

    IPC分类号: H04L27/36

    摘要: A multi-antenna transmitter includes an adaptive bit interleaver for orthogonal frequency division multiplexed (OFDM) communications. The adaptive bit interleaver permutes a variable number of coded bits per OFDM symbol (Ncbps). The variable number of coded bits is calculated based on individual subcarrier modulation assignments for orthogonal subcarriers. The interleaver matrix size may be based on the variable number of coded bits per OFDM symbol and the number of subchannels. The interleaver may add padding bits to the interleaver matrix to fill any remaining positions, and after performing an interleaving operation, the interleaver may prune the padding bits to provide a sequence of interleaved bits for subsequent modulation on the orthogonal subcarriers and transmission by more than one antenna. The transmitter may transmit the OFDM symbol in accordance with an IEEE 802.16 standard.

    摘要翻译: 多天线发射机包括用于正交频分复用(OFDM)通信的自适应比特交织器。 自适应比特交织器将每个OFDM符号的可变数量的编码比特(Ncbps)置换。 基于正交子载波的各个子载波调制分配来计算编码比特的可变数目。 交织器矩阵大小可以基于每OFDM符号的可变数量的编码比特和子信道的数量。 交织器可以向交织器矩阵添加填充比特以填充任何剩余的位置,并且在执行交织操作之后,交织器可以修剪填充比特以提供用于在正交子载波上进行后续调制的多个交织比特序列,并且多于一个 天线。 发射机可以根据IEEE 802.16标准发射OFDM符号。

    MIMO transmitter and method for transmitting a group of sequential OFDM symbols in accordance with an IEEE 802.16 communication standard
    29.
    发明授权
    MIMO transmitter and method for transmitting a group of sequential OFDM symbols in accordance with an IEEE 802.16 communication standard 有权
    MIMO发射机和根据IEEE 802.16通信标准发送一组连续OFDM符号的方法

    公开(公告)号:US07885346B2

    公开(公告)日:2011-02-08

    申请号:US12482689

    申请日:2009-06-11

    IPC分类号: H04K1/10 H04L27/28

    摘要: A multiple-input-multiple output (MIMO) transmitter for transmitting a group of sequential orthogonal frequency division multiplexed (OFDM) symbols on a time-division duplexed (TDD) channel in accordance with an IEEE 802.16 standard using a plurality of antennas. The MIMO transmitter comprises a spatial-frequency parser to parse a block of bits into spatial-frequency blocks of a variable number of coded bits, and subcarrier modulators to individually modulate OFDM subcarriers with the spatial-frequency blocks in accordance with spatial-frequency subcarrier modulation assignments to generate groups of symbol-modulated subcarriers. The TDD channel comprises a plurality of the groups of the OFDM subcarriers, and the OFDM subcarriers within each group of subcarriers and within each group of sequential OFDM symbols have the same spatial-frequency subcarrier modulation assignments.

    摘要翻译: 一种多输入多输出(MIMO)发射机,用于使用多个天线根据IEEE 802.16标准在时分双工(TDD)信道上发送一组顺序正交频分复用(OFDM)符号。 MIMO发射机包括用于将比特块解析成可变数量的编码比特的空间频率块的空间频率解析器,以及根据空间频率副载波调制单独调制具有空间频率块的OFDM子载波的子载波调制器 用于生成符号调制子载波组的分配。 TDD信道包括多个OFDM子载波组,并且每个子载波组内的OFDM子载波和每个顺序的OFDM符号组内的OFDM副载波具有相同的空间频率副载波调制分配。

    Systems and methods for adaptive bit loading in a multiple antenna orthogonal frequency division multiplexed communication system
    30.
    发明授权
    Systems and methods for adaptive bit loading in a multiple antenna orthogonal frequency division multiplexed communication system 有权
    多天线正交频分复用通信系统中自适应比特加载的系统和方法

    公开(公告)号:US07738579B2

    公开(公告)日:2010-06-15

    申请号:US12118838

    申请日:2008-05-12

    IPC分类号: H04K1/10 H04L27/18

    摘要: In an orthogonal frequency division multiplexed (OFDM) system, a transmitter and/or receiver communicate separate data streams on non-orthogonal spatial channels. Each spatial channel may use the same set of OFDM subcarriers and may take advantage of the multipath characteristics of the spatial channel allowing the communication of additional data without an increase in frequency bandwidth. Space-frequency subcarrier modulation assignments may be dynamically assigned on a per subcarrier basis as well as a per spatial channel basis to help maximize the data-carrying capacity of the channel. In some embodiments, each of the spatial channels may be associated with one of a plurality of spatially diverse antennas. In other embodiments, beamforming may be performed to allow the transmission and/or reception of signals within the spatial channels.

    摘要翻译: 在正交频分复用(OFDM)系统中,发射机和/或接收机在非正交空间信道上传送单独的数据流。 每个空间信道可以使用相同的OFDM子载波集合,并且可以利用空间信道的多径特性,允许附加数据的通信而不增加频带宽度。 可以在每个子载波基础上以及每个空间信道基础上动态分配空频子载波调制分配,以帮助最大化信道的数据承载能力。 在一些实施例中,每个空间信道可以与多个空间多样的天线中的一个相关联。 在其他实施例中,可以执行波束成形以允许空间信道内的信号的发送和/或接收。