公开(公告)号：US09219576B2

公开(公告)日：2015-12-22

申请号：US12876758

申请日：2010-09-07

Applicant: Hongyuan Zhang ,  Yong Liu ,  Hui-Ling Lou

Inventor： Hongyuan Zhang ,  Yong Liu ,  Hui-Ling Lou

IPC: H04L1/00 ,  H04L25/03 ,  H04B7/02 ,  H04J11/00 ,  H04W16/28 ,  H04B7/06

CPC classification number: H04L1/0083 ,  H04B7/022 ,  H04B7/0617 ,  H04B7/0619 ,  H04J11/0053 ,  H04L25/03343 ,  H04L2025/03426 ,  H04L2025/03783 ,  H04L2025/03815 ,  H04W16/28

Abstract: A method for generating a beamforming training (BFT) unit includes generating a physical layer (PHY) preamble of the BFT unit and generating a first encoding block and a second encoding block using PHY data and MAC data, including at least one of i) using a number of padding bits in a PHY layer of the BFT unit such that the BFT unit consists of the PHY preamble, the first encoding block, and the second encoding block, and ii) generating a MAC protocol data unit (MPDU) having a length such that the BFT unit consists of the PHY preamble, the first encoding block, and the second encoding block.

Abstract translation: 一种用于生成波束形成训练（BFT）单元的方法包括：生成BFT单元的物理层（PHY）前导码并使用PHY数据和MAC数据生成第一编码块和第二编码块，包括以下各项中的至少一个：i）使用 BFT单元的PHY层中的多个填充比特，使得BFT单元由PHY前导码，第一编码块和第二编码块组成，以及ii）生成具有长度的MAC协议数据单元（MPDU） 使得BFT单元由PHY前导码，第一编码块和第二编码块组成。

公开(公告)号：US20150350950A1

公开(公告)日：2015-12-03

申请号：US14518846

申请日：2014-10-20

Applicant: Hongyuan Zhang ,  Rohit U. Nabar ,  Raja Banerjea ,  Yong Liu

Inventor： Hongyuan Zhang ,  Rohit U. Nabar ,  Raja Banerjea ,  Yong Liu

IPC: H04W28/06 ,  H04L27/26 ,  H04L29/06

CPC classification number: H04W28/06 ,  H04L5/0048 ,  H04L5/0053 ,  H04L27/2602 ,  H04L27/2613 ,  H04L27/2666 ,  H04L69/02 ,  H04L69/22 ,  H04W84/12

Abstract: In a method for generating a physical layer (PHY) data unit for transmission via a communication channel, the PHY data unit is generated according to a first PHY format when the PHY data unit is to be transmitted in a regular mode, wherein the first PHY format corresponds to a first bandwidth. The PHY data unit is generated according to a second PHY format when the PHY data unit is to be transmitted in an extended range mode, wherein the second PHY format corresponds to a second bandwidth. A preamble of the PHY data unit is modulated such that a receiving device can auto-detect whether the PHY data unit was transmitted at the first bandwidth or the second bandwidth.

Abstract translation: 在用于生成经由通信信道传输的物理层（PHY）数据单元的方法中，当PHY数据单元将以常规模式发送时，根据第一PHY格式生成PHY数据单元，其中第一PHY 格式对应于第一带宽。 当要在扩展范围模式中发送PHY数据单元时，根据第二PHY格式生成PHY数据单元，其中第二PHY格式对应于第二带宽。 对PHY数据单元的前导码进行调制，使得接收设备可以自动检测PHY数据单元是否以第一带宽或第二带宽发送。

公开(公告)号：US09178651B2

公开(公告)日：2015-11-03

申请号：US13231670

申请日：2011-09-13

Applicant: Sudhir Srinivasa ,  Hongyuan Zhang

Inventor： Sudhir Srinivasa ,  Hongyuan Zhang

IPC: H04L1/00 ,  H04L1/06

CPC classification number: H04L1/0033 ,  H04L1/0041 ,  H04L1/06

Abstract: In a method for parsing data in a data unit into a number of spatial streams, a modulation and coding scheme (MCS) is selected from a plurality of MCSs. Information bits are encoded using one or more encoders to generate coded bits, wherein the number of encoders used depends on the selected MCS. The coded bits into a number of spatial streams according to a first set of parsing rules if the coded bits satisfy a parsing constraint. The coded bits are parsed into the number of spatial streams according to a second set of parsing rules if the coded bits do not satisfy the parsing constraint.

Abstract translation: 在将数据单元中的数据解析为多个空间流的方法中，从多个MCS中选择调制和编码方案（MCS）。 使用一个或多个编码器对信息比特进行编码以产生编码比特，其中使用的编码器数量取决于所选择的MCS。 如果编码比特满足解析约束，则根据第一组解析规则将编码比特转换成多个空间流。 如果编码比特不满足解析约束，则编码比特根据第二组解析规则解析为空间流数。

公开(公告)号：US09131399B2

公开(公告)日：2015-09-08

申请号：US13586698

申请日：2012-08-15

Applicant: Yong Liu ,  Harish Ramamurthy ,  Hongyuan Zhang

Inventor： Yong Liu ,  Harish Ramamurthy ,  Hongyuan Zhang

IPC: H04L12/26 ,  H04W28/06 ,  H04L5/00 ,  H04L27/00 ,  H04W8/26 ,  H04W84/12

CPC classification number: H04L27/2613 ,  H04L5/0053 ,  H04L5/0091 ,  H04L27/0006 ,  H04L27/2602 ,  H04W8/26 ,  H04W28/06 ,  H04W72/08 ,  H04W84/12

Abstract: In a method for generating a control data unit a physical layer (PHY) preamble of the control data unit is generated. In generating the PHY preamble, an address field is generated to indicate a communication device for which the data unit is intended, and a frame type field is generated to indicate a type of the control data unit. The address field and the frame type field are included in the PHY preamble. The control data unit is generated to include the PHY preamble. The control data unit is transmitted. The control data unit omits (i) a MAC header, and (iii) a payload.

Abstract translation: 在产生控制数据单元的方法中，生成控制数据单元的物理层（PHY）前置码。 在生成PHY前导码时，生成地址字段以指示数据单元预期的通信设备，并且生成帧类型字段以指示控制数据单元的类型。 地址字段和帧类型字段包括在PHY前导码中。 生成控制数据单元以包括PHY前导码。 发送控制数据单元。 控制数据单元省略（i）MAC报头，和（iii）有效载荷。

公开(公告)号：US09106295B1

公开(公告)日：2015-08-11

申请号：US13550298

申请日：2012-07-16

Applicant: Hongyuan Zhang ,  Leilei Song ,  Rohit U. Nabar

Inventor： Hongyuan Zhang ,  Leilei Song ,  Rohit U. Nabar

IPC: H04B7/00 ,  H04B7/06 ,  H04L25/03

CPC classification number: H04B7/0626 ,  H04B7/0417 ,  H04B7/0478 ,  H04L25/03343 ,  H04L25/03949 ,  H04L2025/03426

Abstract: An equalizer is applied to a signal to be transmitted via at least one multiple input, multiple output (MIMO) channel or received via at least one MIMO channel using a matrix equalizer computational device. Channel state information (CSI) is received, and the CSI is provided as an input to the matrix equalizer computational device when the matrix equalizer computational device is not needed for matrix equalization. One or more transmit beamsteering codewords are selected from a transmit beamsteering codebook based on output generated by the matrix equalizer computational device in response to the CSI input to the matrix equalizer computational device.

Abstract translation: 均衡器被应用于要经由至少一个多输入多输出（MIMO）信道发射的信号或者通过使用矩阵均衡器计算设备经由至少一个MIMO信道接收的信号。 当矩阵均衡器计算设备不需要用于矩阵均衡时，接收到信道状态信息（CSI），并且将CSI作为矩阵均衡器计算设备的输入提供。 响应于对矩阵均衡器计算装置的CSI输入，基于由矩阵均衡器计算装置产生的输出，从发射波束导向码本中选择一个或多个发射波束引导码字。

公开(公告)号：US09078169B2

公开(公告)日：2015-07-07

申请号：US13587681

申请日：2012-08-16

Applicant: Hongyuan Zhang ,  Raja Banerjea ,  Yong Liu ,  Sudhir Srinivasa

Inventor： Hongyuan Zhang ,  Raja Banerjea ,  Yong Liu ,  Sudhir Srinivasa

IPC: H04L29/02 ,  H04W28/18 ,  H04L29/06 ,  H04L29/08 ,  H04W84/12

CPC classification number: H04W28/18 ,  H04L69/22 ,  H04L69/323 ,  H04W84/12

Abstract: A method of generating packets for transmission in a wireless communication system, wherein each packet includes a SIG field that includes a first SIG subfield, includes generating a data packet and a null data packet. Generating the data packet includes generating information bits of the first SIG subfield of the data packet and generating the data portion of the data packet. The information bits of the first SIG subfield of the data packet indicate, to a receiving device, a length corresponding to a data portion of the data packet. Generating the null data packet includes generating information bits of the first SIG subfield of the null data packet. The information bits of the first SIG subfield of the null data packet indicate, to a receiving device, a first physical layer (PHY) parameter value associated with the null data packet. The first PHY parameter value is not a length value.

Abstract translation: 一种在无线通信系统中生成用于发送的分组的方法，其中每个分组包括包括第一SIG子字段的SIG字段，包括生成数据分组和空数据分组。 产生数据分组包括生成数据分组的第一SIG子字段的信息比特并生成数据分组的数据部分。 数据分组的第一SIG子字段的信息比特向接收设备指示对应于数据分组的数据部分的长度。 生成空数据分组包括产生空数据分组的第一SIG子字段的信息比特。 空数据分组的第一SIG子字段的信息位向接收设备指示与空数据分组相关联的第一物理层（PHY）参数值。 第一个PHY参数值不是长度值。

公开(公告)号：US09077594B2

公开(公告)日：2015-07-07

申请号：US13550183

申请日：2012-07-16

Applicant: Raja Banerjea ,  Hongyuan Zhang

Inventor： Raja Banerjea ,  Hongyuan Zhang

IPC: H04L27/26 ,  H04W48/08

CPC classification number: H04W48/06 ,  H04L27/2602 ,  H04L27/2613 ,  H04L27/2692 ,  H04W48/08 ,  H04W72/0446 ,  H04W72/1257 ,  H04W72/1278 ,  H04W84/12

Abstract: A system including a midamble detection module and a processing module. The midamble detection module is configured to detect a midamble of a packet transmitted via a channel, where the packet includes (i) a preamble, (ii) the midamble, and (iii) a plurality of data fields, where the preamble includes (i) a first short training field, (ii) a first long training field, and (iii) a signal field, where the midamble includes (i) a second short training field and (ii) a second long training field, and where the midamble follows the preamble and is between two or more of the data fields. The processing module is configured to determine that the channel is busy in response to detecting the midamble in the packet.

Abstract translation: 一种包括中间码检测模块和处理模块的系统。 中间码检测模块被配置为检测经由信道发送的分组的中间码，其中分组包括（i）前同步码，（ii）中间码和（iii）多个数据字段，其中前导码包括（i ）第一短训练场，（ii）第一长训练场，和（iii）信号场，其中中间码包括（i）第二短训练场和（ii）第二长训练场，并且其中， 遵循前导码并且在两个或更多个数据字段之间。 处理模块被配置为响应于检测到分组中的中间码而确定信道是忙的。

公开(公告)号：US08902869B2

公开(公告)日：2014-12-02

申请号：US13494527

申请日：2012-06-12

Applicant: Hongyuan Zhang ,  Raja Banerjea ,  Sudhir Srinivasa

Inventor： Hongyuan Zhang ,  Raja Banerjea ,  Sudhir Srinivasa

IPC: H04W84/12 ,  H04L1/00 ,  H04L27/26 ,  H04L1/08

CPC classification number: H04L1/004 ,  H04L1/0025 ,  H04L1/0043 ,  H04L1/0057 ,  H04L1/0061 ,  H04L1/08 ,  H04L7/048 ,  H04L27/2602 ,  H04L27/2613

Abstract: A method, in a communication system utilizing channels for transmitting first PHY mode data units, includes generating first and second data units conforming to first and second PHY modes, respectively, causing the first data unit to be transmitted via a channel, determining a frequency band for transmitting the second data unit, and causing the second data unit to be transmitted via the frequency band. Generating the first and second data units includes generating first and second series of OFDM symbols, respectively. At least a portion of the second OFDM symbols includes more upper-edge than lower-edge guard tones, or vice versa. The frequency band has a bandwidth equal to the channel bandwidth divided by n≧2, and either a lowest or highest sub-band of one or more channels is excluded from the frequency band when the second OFDM symbols include more upper-edge or more lower-edge guard tones, respectively.

Abstract translation: 一种在利用用于发送第一PHY模式数据单元的信道的通信系统中的方法，包括分别产生符合第一和第二PHY模式的第一和第二数据单元，使得经由信道发送第一数据单元，确定频带 用于发送第二数据单元，并且使第二数据单元经由频带发送。 生成第一和第二数据单元包括分别产生第一和第二系列OFDM符号。 第二OFDM符号的至少一部分包括比下边缘保护音更多的上边缘，反之亦然。 频带具有等于信道带宽除以n≥2的带宽，并且当第二OFDM符号包括更多的上边缘或更低的边缘时，从频带中排除一个或多个信道的最低或最高子带 - 保护音，分别。

公开(公告)号：US08891597B1

公开(公告)日：2014-11-18

申请号：US13185464

申请日：2011-07-18

Applicant: Hongyuan Zhang ,  Rohit U. Nabar

Inventor： Hongyuan Zhang ,  Rohit U. Nabar

IPC: H04B1/38

CPC classification number: H04B17/11 ,  H04B7/0413 ,  H04B7/0617 ,  H04L25/0224

Abstract: In a beamforming method, one or more compensation factor sets are applied to antennas of a first communication device. A modulation and coding scheme (MCS) for communicating with a second communication device is selected while applying a first compensation factor set to the antennas of the first communication device. For each of the one or more compensation factor sets, (i) a steering matrix is developed based on a data unit received at the first communication device from the second communication device, (ii) one or more data units are transmitted from the first communication device to the second communication device while applying the steering matrix and the compensation factor set to the first plurality of antennas, and (iii) a channel performance indicator is determined based on the one or more data units. A compensation factor set to be used in subsequent beamforming operations is selected based on the channel performance indicator.

Abstract translation: 在波束成形方法中，将一个或多个补偿因子组应用于第一通信设备的天线。 在对第一通信设备的天线施加第一补偿因子集的同时，选择用于与第二通信设备通信的调制和编码方案（MCS）。 对于一个或多个补偿因子集合中的每一个，（i）基于在第一通信设备从第二通信设备接收的数据单元开发导引矩阵，（ii）从第一通信发送一个或多个数据单元 将所述导向矩阵和所述补偿系数应用于所述第一多个天线，并且（iii）基于所述一个或多个数据单元来确定信道性能指示符，从而将所述设备连接到所述第二通信设备。 基于信道性能指标来选择设置用于后续波束成形操作的补偿因子。

公开(公告)号：US08873484B1

公开(公告)日：2014-10-28

申请号：US13285188

申请日：2011-10-31

Applicant: Ying-Cheng Lee ,  Timothy J. Donovan ,  Dharmesh C. Bhagatwala ,  Ken Kinwah Ho ,  Hongyuan Zhang ,  Rohit U. Nabar ,  Tsunglun Yu

Inventor： Ying-Cheng Lee ,  Timothy J. Donovan ,  Dharmesh C. Bhagatwala ,  Ken Kinwah Ho ,  Hongyuan Zhang ,  Rohit U. Nabar ,  Tsunglun Yu

IPC: H04W4/00

CPC classification number: H04B7/0617 ,  H04B7/046 ,  H04B7/0626 ,  H04B7/0634 ,  H04B7/0689 ,  H04B7/0871

Abstract: Systems, methods, and other embodiments associated with a hybrid beamforming architecture are described. According to one embodiment, an apparatus includes a beamforming mode detection logic configured to select a beamforming mode based, at least in part, on a packet received from a wireless device. The apparatus also includes a beamformee unit and a beamformer unit. The beamformee unit is configured to derive steering information from channel related information in the packet. The beamformer unit is configured to provide weights from a steering matrix to a transmitter performing transmit beamforming on a subsequent packet being transmitted to the wireless device. The beamforming mode detection logic routes at least part of the packet to one or both of the beamformee unit and the beamformer unit based, at least in part, on the selected beamforming mode.

Abstract translation: 描述了与混合波束形成架构相关联的系统，方法和其他实施例。 根据一个实施例，一种装置包括波束形成模式检测逻辑，其被配置为至少部分地基于从无线设备接收的分组来选择波束成形模式。 该装置还包括波束形成单元和波束形成单元。 波束形成单元被配置为从分组中的信道相关信息中导出转向信息。 波束形成器单元被配置为从发送到无线设备的后续分组提供从导向矩阵到发射机执行发射波束成形的权重。 至少部分地基于所选择的波束形成模式，波束形成模式检测逻辑将分组的至少一部分路由到波束形成单元和波束形成单元中的一个或两个。