公开(公告)号：US08743994B2

公开(公告)日：2014-06-03

申请号：US13729881

申请日：2012-12-28

申请人： Matthew J. Fischer ,  Joonsuk Kim ,  Christopher J. Hansen ,  Jason A. Trachewsky

发明人： Matthew J. Fischer ,  Joonsuk Kim ,  Christopher J. Hansen ,  Jason A. Trachewsky

IPC分类号： H04W80/00

CPC分类号： H04W80/00 ,  H04B7/0421 ,  H04B7/0617 ,  H04B7/0628 ,  H04B7/0634 ,  H04L1/0026 ,  H04L1/0045 ,  H04L1/0068 ,  H04L1/06 ,  H04L27/2601

摘要： A method for feeding back transmitter beamforming information from a receiving wireless communication device to a transmitting wireless communication device includes a receiving wireless communication device receiving a preamble sequence from the transmitting wireless device. The receiving wireless device estimates a channel response based upon the preamble sequence and then determines an estimated transmitter beamforming unitary matrix based upon the channel response and a receiver beamforming unitary matrix. The receiving wireless device then decomposes the estimated transmitter beamforming unitary matrix to produce the transmitter beamforming information and then wirelessly sends the transmitter beamforming information to the transmitting wireless device.

摘要翻译： 将发射机波束形成信息从接收无线通信设备反馈到发射无线通信设备的方法包括从发射无线设备接收前同步码序列的接收无线通信设备。 接收无线设备基于前导序列估计信道响应，然后基于信道响应和接收机波束成形单位矩阵来确定估计的发射机波束成形单位矩阵。 接收无线设备然后分解估计的发射机波束成形单位矩阵以产生发射机波束形成信息，然后将发射机波束成形信息无线发送到发射无线设备。

公开(公告)号：US20120321015A1

公开(公告)日：2012-12-20

申请号：US13593745

申请日：2012-08-24

申请人： Christopher J. Hansen ,  Jason A. Trachewsky ,  R. Tushar Moorti ,  Matthew J. Fischer ,  Christopher Young

发明人： Christopher J. Hansen ,  Jason A. Trachewsky ,  R. Tushar Moorti ,  Matthew J. Fischer ,  Christopher Young

IPC分类号： H04B7/06

CPC分类号： H04B7/0667

摘要： A method for generating a preamble of a frame for a multiple input multiple output (MIMO) wireless communication begins by, for each transmit antenna, generating a carrier detect field. The method continues by, for a first grouping of the transmit antennas, generating a first guard interval, and at least one channel sounding field. Continuing, the method applies cyclical shift prior to transmission via the first grouping of the transmit antennas. When the MIMO wireless communication includes more than the first grouping of the transmit antennas, for another grouping of the transmit antennas. For the another grouping of the transmit antennas, generating at least one other channel sounding field. The method proceeds by generating the first guard interval prior to the at least one other channel sounding field, and applying another cyclical shift prior to transmission via the another grouping of the transmit antennas.

摘要翻译： 用于生成多输入多输出（MIMO）无线通信的帧的前同步码的方法由每个发射天线开始，生成载波检测场。 对于发射天线的第一组，产生第一保护间隔和至少一个信道探测场，继续该方法。 继续地，该方法在通过发射天线的第一组发射之前应用周期性移位。 当MIMO无线通信包括多于发射天线的第一组时，对于另一组发射天线。 对于发射天线的另一组，产生至少一个其它信道探测场。 该方法通过在至少一个其它信道探测场之前产生第一保护间隔，并且在经由另一组发射天线的传输之前应用另一个循环移位来进行。

公开(公告)号：US08284651B2

公开(公告)日：2012-10-09

申请号：US13192964

申请日：2011-07-28

申请人： Christopher J. Hansen ,  Jason A. Trachewsky ,  Rajendra Tushar Moorti ,  Matthew James Fischer ,  Christopher Young

发明人： Christopher J. Hansen ,  Jason A. Trachewsky ,  Rajendra Tushar Moorti ,  Matthew James Fischer ,  Christopher Young

IPC分类号： H04J3/24 ,  H04J11/00 ,  H04W4/00 ,  H03C7/02 ,  H04B1/00

CPC分类号： H04B7/0667

摘要： A method for generating a preamble of a frame for a multiple input multiple output (MIMO) wireless communication begins by, for each transmit antenna, generating a carrier detect field. The method continues by, for a first grouping of the transmit antennas, generating a first guard interval following the carrier detect field; and generating at least one channel sounding field. Continuing, the method applies cyclical shift prior to transmission via the first grouping of the transmit antennas. When the MIMO wireless communication includes more than the first grouping of the transmit antennas, for another grouping of the transmit antennas. For the another grouping of the transmit antennas, generating at least one other channel sounding field. The method proceeds by generating the first guard interval prior to the at least one other channel sounding field, and applying another cyclical shift prior to transmission via the another grouping of the transmit antennas.

摘要翻译： 用于生成多输入多输出（MIMO）无线通信的帧的前同步码的方法由每个发射天线开始，生成载波检测场。 对于发射天线的第一组，该方法继续生成载波检测场之后的第一保护间隔; 并产生至少一个声道探测场。 继续地，该方法在通过发射天线的第一组发射之前应用周期性移位。 当MIMO无线通信包括多于发射天线的第一组时，对于另一组发射天线。 对于发射天线的另一组，产生至少一个其它信道探测场。 该方法通过在至少一个其它信道探测场之前产生第一保护间隔，并且在经由另一组发射天线的传输之前应用另一个循环移位来进行。

公开(公告)号：US08175542B2

公开(公告)日：2012-05-08

申请号：US12428185

申请日：2009-04-22

申请人： Saishankar Nandagopalan ,  Jeyhan Karaoguz ,  Jason A. Trachewsky ,  Vinko Erceg ,  Christopher J. Hansen ,  Matthew J. Fischer ,  Murat Mese

发明人： Saishankar Nandagopalan ,  Jeyhan Karaoguz ,  Jason A. Trachewsky ,  Vinko Erceg ,  Christopher J. Hansen ,  Matthew J. Fischer ,  Murat Mese

IPC分类号： H04B1/38 ,  H04B7/02 ,  H01Q3/00

CPC分类号： H04B1/44 ,  H01Q3/30 ,  H01Q21/28

摘要： A wireless transceiver includes a phased array of antennas, that transmit an outbound RF signal containing outbound data to remote transceivers and that receives an inbound RF signal containing inbound data from the remote RF transceivers, wherein the phased array of antennas is configurable based on a control signal. An antenna configuration controller generates the control signal to configure the phased array of antennas to hop among a plurality of radiation patterns based on a hopping sequence. An RF transceiver section generates the outbound RF signal based on the outbound data and that generates the inbound data based on the inbound RF signal. In one configuration, a switching section selectively couples a selected antenna of the phased array of antennas to the RF transceiver section, based on the control signal. In another configuration, the RF transceiver section includes an RF section for each antenna of the phased array of antennas.

摘要翻译： 无线收发器包括相控天线阵列，其将包含出站数据的出站RF信号发送到远程收发器，并且接收包含来自远程RF收发器的入站数据的入站RF信号，其中基于控制的可配置天线阵列 信号。 天线配置控制器基于跳频序列产生控制信号以配置在多个辐射图案之间跳频的相控天线阵列。 RF收发器部分基于出站数据生成出站RF信号，并且基于入站RF信号生成入站数据。 在一种配置中，切换部分基于控制信号选择性地将相控天线阵列的选定天线耦合到RF收发器部分。 在另一种配置中，RF收发器部分包括用于天线相控阵列的每个天线的RF部分。

公开(公告)号：US20120071187A1

公开(公告)日：2012-03-22

申请号：US13305223

申请日：2011-11-28

申请人： Jeyhan Karaoguz ,  Jason A. Trachewsky ,  Vinko Erceg ,  Matthew J. Fischer ,  Christopher J. Hansen ,  Saishankar Nandagopalan ,  Murat Mese

发明人： Jeyhan Karaoguz ,  Jason A. Trachewsky ,  Vinko Erceg ,  Matthew J. Fischer ,  Christopher J. Hansen ,  Saishankar Nandagopalan ,  Murat Mese

IPC分类号： H04W72/04

CPC分类号： H04W72/0453 ,  H04W88/06

摘要： A control device includes at least one communication interface for communicating first control data with at least one first communication device that utilizes the millimeter wave frequency band in accordance with a first protocol and further for communicating second control data with at least one second communication device that utilizes the millimeter wave frequency band in accordance with a second protocol. A resource controller allocates resources of the millimeter wave frequency band to the at least one first communication device and the at least one second communication device based on the first control data and the second control data.

摘要翻译： 控制装置包括至少一个通信接口，用于将第一控制数据与根据第一协议利用毫米波频带的至少一个第一通信设备进行通信，并且还用于与至少一个第二通信设备通信第二控制数据，该第二通信设备利用 根据第二协议的毫米波频带。 资源控制器基于第一控制数据和第二控制数据，将毫米波频带的资源分配给至少一个第一通信设备和至少一个第二通信设备。

公开(公告)号：US08059740B2

公开(公告)日：2011-11-15

申请号：US10856023

申请日：2004-05-28

申请人： Christopher J. Hansen ,  Jason A. Trachewsky ,  Nambirajan Seshadri ,  Kelly Brian Cameron ,  Hau Thien Tran ,  Ba-Zhong Shen

发明人： Christopher J. Hansen ,  Jason A. Trachewsky ,  Nambirajan Seshadri ,  Kelly Brian Cameron ,  Hau Thien Tran ,  Ba-Zhong Shen

IPC分类号： H04L5/12

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 baseband processing module is operably coupled to process data by scrambling the data in accordance with a pseudo random sequence to produce scrambled data. The processing of the data continues by selecting one of a plurality of encoding modes based on a mode selection signal. The processing of the data continues by encoding the scrambled data in accordance with the one of the plurality of encoding modes to produce encoded data. The processing of the data continues by determining a number of transmit streams based on the mode selection signal. The processing of the data further continues by converting the 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。 基带处理模块可操作地耦合以通过根据伪随机序列对数据进行加扰来处理数据以产生加扰数据。 基于模式选择信号，选择多种编码模式之一来继续数据的处理。 通过根据多个编码模式之一对加扰数据进行编码，继续处理数据以产生编码数据。 通过基于模式选择信号确定多个发送流来继续处理数据。 根据发送流的数量和模式选择信号，将编码数据转换成符号流，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。

公开(公告)号：US07873022B2

公开(公告)日：2011-01-18

申请号：US10933586

申请日：2004-09-03

申请人： Christopher J. Hansen ,  Jason A. Trachewsky ,  Nambirajan Seshadri ,  Kelly Brian Cameron ,  Hau Thien Tran ,  Ba-Zhong Shen

发明人： Christopher J. Hansen ,  Jason A. Trachewsky ,  Nambirajan Seshadri ,  Kelly Brian Cameron ,  Hau Thien Tran ,  Ba-Zhong Shen

IPC分类号： H04B7/216 ,  H04K1/10

CPC分类号： H04L1/0625 ,  H04L1/0059 ,  H04L1/0071

摘要： A wireless local area network (WLAN) transmitter includes a MAC module, a PLCP module, and a PMD module. The Medium Access Control (MAC) module is operably coupled to convert a MAC Service Data Unit (MSDU) into a MAC Protocol Data Unit (MPDU) in accordance with a WLAN protocol. The Physical Layer Convergence Procedure (PLCP) Module is operably coupled to convert the MPDU into a PLCP Protocol Data Unit (PPDU) in accordance with the WLAN protocol. The Physical Medium Dependent (PMD) module is operably coupled to convert the PPDU into a plurality of radio frequency (RF) signals in accordance with one of a plurality of operating modes of the WLAN protocol, wherein the plurality of operating modes includes multiple input and multiple output combinations.

摘要翻译： 无线局域网（WLAN）发射机包括MAC模块，PLCP模块和PMD模块。 媒体访问控制（MAC）模块可操作地耦合以根据WLAN协议将MAC服务数据单元（MSDU）转换成MAC协议数据单元（MPDU）。 物理层会聚过程（PLCP）模块可操作地耦合，以根据WLAN协议将MPDU转换成PLCP协议数据单元（PPDU）。 物理介质依赖（PMD）模块可操作地耦合以根据WLAN协议的多种操作模式之一将PPDU转换成多个射频（RF）信号，其中多个操作模式包括多个输入和 多个输出组合。

公开(公告)号：US20100273523A1

公开(公告)日：2010-10-28

申请号：US12431085

申请日：2009-04-28

申请人： Saishankar Nandagopalan ,  Jeyhan Karaoguz ,  Jason A. Trachewsky ,  Vinko Erceg ,  Matthew J. Fischer ,  Christopher J. Hansen ,  Murat Mese

发明人： Saishankar Nandagopalan ,  Jeyhan Karaoguz ,  Jason A. Trachewsky ,  Vinko Erceg ,  Matthew J. Fischer ,  Christopher J. Hansen ,  Murat Mese

IPC分类号： H04M1/00

CPC分类号： H04W16/14 ,  H04W88/02

摘要： An adaptive communication device includes a transceiver that communicates with a first remote communication device in a millimeter wave frequency band in accordance with a first protocol. The transceiver generates conflict detection signals based on signals received from a second remote communication device that communicates in accordance with a second protocol. A conflict detection module detects communication by the second communication device based on the conflict detection signals and generates a model trigger signal in response thereto. A conflict modeling module responds to the model trigger signal by generating idle prediction data based on the conflict detection signals, wherein the idle prediction data predicts an idle period in the communications by the second remote communication device. A transmission control module generates transmit control signals based on the idle prediction data, wherein the transceiver times transmissions sent to the first remote communication device based on the transmit control signals.

摘要翻译： 自适应通信设备包括收发器，其根据第一协议与毫米波频带中的第一远程通信设备进行通信。 收发器基于从根据第二协议进行通信的第二远程通信设备接收的信号产生冲突检测信号。 冲突检测模块基于冲突检测信号检测第二通信设备的通信，并响应于此产生模型触发信号。 冲突建模模块通过基于冲突检测信号产生空闲预测数据来响应模型触发信号，其中空闲预测数据预测第二远程通信设备进行的通信中的空闲时段。 发送控制模块基于空闲预测数据生成发送控制信号，其中收发机基于发送控制信号来收发发送到第一远程通信设备。

公开(公告)号：US20100273437A1

公开(公告)日：2010-10-28

申请号：US12428169

申请日：2009-04-22

申请人： Saishankar Nandagopalan ,  Jeyhan Karaoguz ,  Jason A. Trachewsky ,  Vinko Erceg ,  Christopher J. Hansen ,  Matthew J. Fischer ,  Murat Mese

发明人： Saishankar Nandagopalan ,  Jeyhan Karaoguz ,  Jason A. Trachewsky ,  Vinko Erceg ,  Christopher J. Hansen ,  Matthew J. Fischer ,  Murat Mese

IPC分类号： H04B1/40

CPC分类号： H04B7/0689

摘要： A wireless transceiver includes at least one phased array antenna, that transmits an outbound RF signal containing outbound data to at least one remote transceiver and that receives an inbound RF signal containing inbound data from the at least one remote RF transceiver, wherein the at least one phased array antenna is configurable based on a control signal. An antenna configuration controller generates the control signal to configure the phased array antenna to hop among a plurality of radiation patterns based on a hopping sequence. At least one RF transceiver section generates the outbound RF signal based on the outbound data and that generates the inbound data based on the inbound RF signal.

摘要翻译： 无线收发器包括至少一个相控阵天线，其将包含出站数据的出站RF信号发送到至少一个远程收发器，并且接收来自所述至少一个远程RF收发器的包含入站数据的入站RF信号，其中所述至少一个 基于控制信号可配置相控阵天线。 天线配置控制器产生控制信号，以基于跳频序列将相控阵天线配置在多个辐射图中跳跃。 至少一个RF收发器部分基于出站数据生成出站RF信号，并且基于入站RF信号生成入站数据。

公开(公告)号：US20100220804A1

公开(公告)日：2010-09-02

申请号：US12783730

申请日：2010-05-20

申请人： Christopher J. Hansen ,  Jason A. Trachewsky ,  Nambirajan Seshadri ,  Kelly Brian Cameron ,  Hau Thien Tran ,  Ba-Zhong Shen

发明人： Christopher J. Hansen ,  Jason A. Trachewsky ,  Nambirajan Seshadri ,  Kelly Brian Cameron ,  Hau Thien Tran ,  Ba-Zhong Shen

IPC分类号： H04B7/02

CPC分类号： H04B7/0613 ,  H04B7/0413

摘要： A method for asymmetrical MIMO wireless communication begins by determining a number of transmission antennas for the asymmetrical MIMO wireless communication. The method continues by determining a number of reception antennas for the asymmetrical MIMO wireless communication. The method continues by, when the number of transmission antennas exceeds the number of reception antennas, using spatial time block coding for the asymmetrical MIMO wireless communication. The method continues by, when the number of transmission antennas does not exceed the number of reception antennas, using spatial multiplexing for the asymmetrical MIMO wireless communication.

摘要翻译： 一种用于非对称MIMO无线通信的方法是通过确定用于非对称MIMO无线通信的多个发送天线来开始的。 该方法通过确定用于非对称MIMO无线通信的接收天线的数量来继续。 当发送天线的数量超过接收天线的数量时，该方法继续使用用于非对称MIMO无线通信的空间时间块编码。 当发送天线的数量不超过接收天线的数量时，该方法继续使用用于非对称MIMO无线通信的空间复用。