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1.发明申请Master/slave oscillation production and distribution in a multiple RF transceiver system supporting MIMO operations 有权支持MIMO操作的多RF收发器系统中的主/从振荡生产和分配公开(公告)号：US20060221905A1
公开(公告)日：2006-10-05
申请号：US11168733
申请日：2005-06-28
申请人： Arya Behzad , Jason Trachewsky , R. Moorti
发明人： Arya Behzad , Jason Trachewsky , R. Moorti
IPC分类号： H04B7/216
CPC分类号： H04B1/40
摘要： A multiple input multiple output (MIMO) RF transceiver system includes a plurality of RF transceiver ICs, a crystal, and master oscillation coupling. Each of the plurality of RF transceiver ICs includes crystal oscillator circuitry. Crystal oscillator circuitry of the first RF transceiver IC and a crystal are operable to produce a master oscillation. Master oscillation coupling couples the master oscillation produced by the first RF transceiver IC to the at least one other RF transceiver IC. In one embodiment, the master oscillation is passed from the first RF transceiver IC to each other transceiver RF ICs. In another embodiment, the master oscillation is used to produce a slave oscillation at a second RF transceiver IC and subsequent RF transceiver ICs produce there own slave oscillation based upon a slave oscillation received from a prior RF transceiver IC.
摘要翻译： 多输入多输出（MIMO）RF收发器系统包括多个RF收发器IC，晶体和主振荡耦合。 多个RF收发器IC中的每一个包括晶体振荡器电路。 第一RF收发器IC和晶体的晶体振荡器电路可操作以产生主振荡。 主振荡耦合将由第一RF收发器IC产生的主振荡耦合到至少一个其它RF收发器IC。 在一个实施例中，主振荡从第一RF收发器IC传递到彼此的收发器RF IC。 在另一个实施例中，主振荡用于在第二RF收发器IC产生从动振荡，并且随后的RF收发器IC基于从先前RF收发器IC接收的从动振荡而产生自身的从动振荡。
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2.发明申请公开(公告)号：US20070111676A1
公开(公告)日：2007-05-17
申请号：US11527854
申请日：2006-09-27
申请人： Jason Trachewsky , Arya Behzad
发明人： Jason Trachewsky , Arya Behzad
CPC分类号： H04B1/0003
摘要： Analog signal paths are utilized between a baseband processor and a radio front end to support high throughput communications for a multiple in multiple out radio transceiver that support communications over two or more antennas. Specifically, analog differential I and Q path communication signals are exchanged between a radio front end core and a baseband processor to maximize throughput capacity for high data rate signals. Along the same lines, the impedances of traces and the interface are matched to reduce I/Q imbalance.
摘要翻译： 模拟信号路径在基带处理器和无线电前端之间被利用，以支持用于支持两个或更多个天线上的通信的多输出无线电收发器中的多个通信的高吞吐量通信。 具体地说，在无线电前端核心和基带处理器之间交换模拟差分I和Q路径通信信号以最大化高数据速率信号的吞吐能力。 沿着相同的线路，跟踪和接口的阻抗匹配，以减少I / Q不平衡。
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公开(公告)号：US20060171492A1
公开(公告)日：2006-08-03
申请号：US11079961
申请日：2005-03-15
IPC分类号： H04L27/06
CPC分类号： H04B1/28
摘要： The present invention provides adjusting of a radio frequency (RF) receiver that includes processing that begins by enabling an initial setting of the RF receiver, wherein the initial setting is based on a bandwidth of a channel of a plurality of channels. The processing continues by receiving an RF signal containing a preamble of a frame via one of the plurality of channels. The processing continues by converting the RF signal to a baseband signal based on the initial setting. The processing continues by determining channel type of the one of the plurality of channels based on the baseband signal. The processing continues by determining whether the channel type corresponds to the bandwidth of the initial setting. The processing continues by, when the channel type does not correspond to the bandwidth of the initial setting, adjusting setting of the RF receiver based on the channel type.
摘要翻译： 本发明提供了一种射频（RF）接收机的调整，其包括通过启动RF接收机的初始设置而开始的处理，其中初始设置基于多个信道的信道的带宽。 该处理通过经由多个信道中的一个接收包含帧的前同步码的RF信号而继续。 该处理通过基于初始设置将RF信号转换为基带信号来继续。 通过基于基带信号确定多个信道之一的信道类型来继续处理。 通过确定信道类型是否对应于初始设置的带宽，继续处理。 当通道类型不对应于初始设置的带宽时，处理继续，根据信道类型调整RF接收机的设置。
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公开(公告)号：US20060088120A1
公开(公告)日：2006-04-27
申请号：US11079962
申请日：2005-03-15
IPC分类号： H04L1/02
CPC分类号： H04B7/0613
摘要： A method for generating a preamble of a frame for a multiple input multiple output (MIMO) wireless communication begins by, for a first transmit antenna of the MIMO communication, generating a legacy preamble portion for the frame in accordance with a legacy wireless communication protocol, wherein the legacy preamble portion includes at least a first training sequence and a second training sequence and generating a current protocol preamble portion for the frame in accordance with a protocol of the MIMO wireless communication. The processing continues, for at least a second antenna of the MIMO communication, by generating a cyclically shifted legacy preamble portion for the frame, wherein the cyclically shifted legacy preamble portion includes at a cyclically shifted first training sequence and a cyclically shifted second training sequence, wherein the cyclically shifted first training sequence is time-shifted with respect to the first training sequence by a fraction of duration of the legacy preamble portion, and wherein the cyclically shifted second training sequence is time-shifted with respect to the second training sequence by the fraction of duration of the legacy preamble portion and generating a second current protocol preamble portion for the frame in accordance with a protocol of the MIMO wireless communication.
摘要翻译： 用于产生用于多输入多输出（MIMO）无线通信的帧的前同步码的方法由MIMO通信的第一发射天线开始，根据传统无线通信协议为该帧生成遗留前导码部分， 其中所述传统前同步码部分至少包括第一训练序列和第二训练序列，并且根据所述MIMO无线通信的协议生成所述帧的当前协议前同步码部分。 对于MIMO通信的至少第二天线，通过为该帧生成循环移位的传统前同步码部分，该处理继续进行，其中循环移位的传统前同步码部分包括循环移位的第一训练序列和循环移位的第二训练序列， 其中所述循环移位的第一训练序列相对于所述第一训练序列经过所述遗留前导码部分的持续时间的一小部分被时移，并且其中所述循环移位的第二训练序列相对于所述第二训练序列被时移 根据MIMO无线通信的协议，为传统前同步码部分的持续时间的分数，并为该帧生成第二当前协议前同步码部分。
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公开(公告)号：US20050232370A1
公开(公告)日：2005-10-20
申请号：US10929313
申请日：2004-08-30
申请人： Jason Trachewsky , R. Moorti , Christopher Hansen
发明人： Jason Trachewsky , R. Moorti , Christopher Hansen
CPC分类号： H04B7/0613
摘要： A method for configuring a multiple input multiple output (MIMO) wireless communication begins by generating a plurality of preambles for a plurality of transmit antennas. Each of the plurality of preambles includes a carrier detection sequence at a legacy transmit rate, a first channel sounding at the legacy transmit rate, a signal field at the legacy transmit rate, and Z−1 channel soundings at a MIMO transmit rate, where L corresponds to a number of channel soundings. The method continues by simultaneously transmitting the plurality of preambles via the plurality of transmit antennas.
摘要翻译： 用于配置多输入多输出（MIMO）无线通信的方法开始于为多个发射天线生成多个前同步码。 多个前导码中的每一个包括传统发送速率的载波检测序列，以传统发送速率发声的第一信道，传统发送速率的信号字段和MIMO发送速率的Z-1信道探测，其中L 对应于多个通道探测。 该方法通过经由多个发射天线同时发送多个前导码来继续。
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公开(公告)号：US20050180360A1
公开(公告)日：2005-08-18
申请号：US10973595
申请日：2004-10-26
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 of the MIMO wireless communication, generating a carrier detect field, wherein, from transmit antenna to transmit antenna, the carrier detect field is cyclically shifted. The method continues by, for a first grouping of the transmit antennas of the MIMO wireless communication: generating a first guard interval following the carrier detect field; and generating at least one channel sounding field, wherein, from transmit antenna to transmit antenna in the first grouping, the at least one channel sounding field is cyclically shifted, and wherein the at least one channel sounding field follows the first guard interval. The method continues by, when the MIMO wireless communication includes more than the first grouping of the transmit antennas, for another grouping of the transmit antennas: generating at least one other channel sounding field, wherein, from transmit antenna to transmit antenna in the another grouping, the at least one other channel sounding field is cyclically shifted, and wherein the at least one other channel sounding field follows the at least one channel sounding field; and generating the first guard interval prior to the at least one other channel sounding field.
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，针对MIMO无线通信的每个发射天线开始，生成载波检测场，其中，从发射天线到发射天线，载波 检测场循环移位。 对于MIMO无线通信的发射天线的第一组，该方法继续：产生载波检测域之后的第一保护间隔; 以及产生至少一个信道探测场，其中，从所述第一组中的发射天线到所述发射天线，所述至少一个信道探测场被循环移位，并且其中所述至少一个信道探测场跟随所述第一保护间隔。 当MIMO无线通信包括多于发射天线的第一组合时，该方法继续用于发射天线的另一组：产生至少一个其它信道探测场，其中从另一组中的发射天线到发射天线 ，所述至少一个其它信道探测场被循环移位，并且其中所述至少一个其它信道探测场跟随所述至少一个信道探测场; 以及在所述至少一个其它信道探测场之前产生所述第一保护间隔。
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公开(公告)号：US20050181728A1
公开(公告)日：2005-08-18
申请号：US10973549
申请日：2004-10-26
CPC分类号： H04B7/0613
摘要： A method for configuring a multiple input multiple output (MIMO) wireless communication begins by generating a first preamble for a first antenna of the MIMO communication, wherein the first preamble includes a carrier detect field, a first channel select field, a first signal field, and a second signal field. The method continues by generating a second preamble for at least one other antenna of the MIMO communication, wherein the second preamble includes the carrier detect field, a plurality of channel select fields, and the second signal field. The method continues by simultaneously transmitting the carrier detect field via the first antenna and the least one other antenna. The method continues by transmitting the first channel select field and the first signal field via the first antenna. The method continues by, subsequent to the transmitting the first channel select field and the first signal field via the first antenna, transmitting the plurality of channel select fields via the at least one other antenna. The method continues by simultaneously transmitting the second signal field via the first antenna and the at least one other antenna.
摘要翻译： 一种用于配置多输入多输出（MIMO）无线通信的方法开始于为MIMO通信的第一天线生成第一前导码，其中第一前同步码包括载波检测字段，第一信道选择字段，第一信号字段， 和第二信号场。 该方法继续通过为MIMO通信的至少一个其他天线生成第二前导码，其中第二前同步码包括载波检测字段，多个信道选择字段和第二信号字段。 该方法通过经由第一天线和至少另一个天线同时发送载波检测场而继续。 该方法通过经由第一天线发送第一信道选择字段和第一信号字段而继续。 在通过第一天线发送第一信道选择字段和第一信号字段之后，该方法继续，经由至少一个其他天线发送多个信道选择字段。 该方法通过经由第一天线和至少一个其它天线同时发送第二信号场来继续。
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8.发明申请公开(公告)号：US20050190724A1
公开(公告)日：2005-09-01
申请号：US10973612
申请日：2004-10-26
申请人： Christopher Hansen , Jason Trachewsky , R. Moorti
发明人： Christopher Hansen , Jason Trachewsky , R. Moorti
CPC分类号： H04W16/14 , H04L5/0023 , H04L5/0048 , H04L25/0226 , H04L27/2613 , H04W24/00 , H04W84/12 , H04W88/06
摘要： A method for transmitting wide bandwidth signals in a network that includes legacy devices begins by determining channel bandwidth of a channel that supports the wide bandwidth signals in the network. The method continues by determining overlap of legacy channel bandwidth with the channel bandwidth of the channel. The method continues by providing a legacy readable preamble section within the channel where the legacy channel bandwidth overlaps the channel bandwidth of the channel.
摘要翻译： 在包括传统设备的网络中发送宽带宽信号的方法是通过确定支持网络中的宽带宽信号的信道的信道带宽来开始的。 该方法通过确定传统信道带宽与信道的信道带宽的重叠来继续。 该方法继续通过在传播信道带宽与信道的信道带宽重叠的信道内提供传统可读前置码部分。
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公开(公告)号：US20070263564A1
公开(公告)日：2007-11-15
申请号：US11825869
申请日：2007-07-10
IPC分类号： H04Q7/00
CPC分类号： H04W72/044 , H04L1/0001 , H04L1/0002 , H04L1/0003 , H04L1/06 , H04L1/1867 , H04L25/0226 , H04L25/0228 , H04L27/2613 , H04W84/12
摘要： A method for multiple input multiple output wireless communication begins by determining protocols of wireless communication devices within a proximal region. The method continues by determining whether the protocols of the wireless communication devices within the proximal region are of a like protocol. The method continues by determining the number of transmit antennas. The method continues, when the protocols of the wireless communication devices within the proximal region are of the like protocol, formatting a preamble of a frame of the wireless communication utilizing at least one of cyclic shifting of symbols, cyclic shifting of tones, sparse tone allocation, and sparse symbol allocation based on the number of transmit antennas.
摘要翻译： 多输入多输出无线通信的方法通过确定近端区域内的无线通信设备的协议来开始。 该方法通过确定近端区域内的无线通信设备的协议是否具有类似协议来继续。 该方法通过确定发射天线的数量继续。 该方法继续，当近端区域内的无线通信设备的协议类似协议时，利用符号的循环移位，音调的循环移位，稀疏音调配置中的至少一个来格式化无线通信的帧的前导码 ，以及基于发射天线数量的稀疏符号分配。
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公开(公告)号：US20070206519A1
公开(公告)日：2007-09-06
申请号：US11800547
申请日：2007-05-07
IPC分类号： H04B7/00
CPC分类号： H04B7/0613
摘要： An RF transceiver includes a baseband processing module, a transmitter section, and a receiver section. The baseband processing module convert outbound data into a plurality of outbound symbol streams, wherein each of the plurality of outbound symbol streams is outputted as one or more frames, wherein a frame of the one or more frames includes a setup portion and a data portion, wherein the set up portion includes at least one of a training sequence field and a signal field, and wherein the set up portion is formatted in accordance with one of a plurality of protocols. The baseband processing module further converts a plurality of inbound symbol streams into inbound data. The transmitter section converts the plurality of the outbound symbol streams into a plurality of outbound RF signals. The receiver section converts a plurality of inbound RF signals into the plurality of inbound symbol streams.
摘要翻译： RF收发器包括基带处理模块，发送器部分和接收器部分。 基带处理模块将出站数据转换为多个出站符号流，其中多个出站符号流中的每一个作为一个或多个帧输出，其中一个或多个帧的帧包括建立部分和数据部分， 其中所述设置部分包括训练序列字段和信号字段中的至少一个，并且其中所述设置部分根据多个协议之一进行格式化。 基带处理模块还将多个入站符号流转换成入站数据。 发射机部分将多个出站符号流转换成多个出站RF信号。 接收机部分将多个入站RF信号转换成多个入站符号流。
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