专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20070054683A1 Dynamic frequency selection in a wireless communication network 失效
标题翻译：无线通信网络中的动态频率选择
公开(公告)号：US20070054683A1
公开(公告)日：2007-03-08
申请号：US11595363
申请日：2006-11-09
申请人： Christopher Hansen , Joonsuk Kim , Matthew Fischer , Rajugopal Gubbi , Jason Trachewsky
发明人： Christopher Hansen , Joonsuk Kim , Matthew Fischer , Rajugopal Gubbi , Jason Trachewsky
IPC分类号： H04B17/00 , H04Q7/20 , H04B15/00 , H04B7/00
CPC分类号： H04W16/10 , H04W36/06 , H04W36/30
摘要： A method and apparatus for dynamic frequency selection in a wireless communication system or network includes processing that begins when an access point determines interference on a wireless channel that is being used by the access point. When the interference exceeds an interference threshold, the access point provides a request packet to affiliated stations being serviced by the access point for channel spectrum information. The processing continues as the affiliated stations generate the channel spectrum information regarding each of the wireless channels in the wireless communication network. The processing proceeds then as the affiliated stations provide the channel spectrum information to the access point via the current wireless channel. The access point interprets the channel spectrum information to determine a desired wireless channel of the plurality of wireless channels within the wireless communication network. The access point then provides a selection packet to the affiliated stations via the current wireless channel to indicate that the access point will begin using the desired wireless channel at a particular future time.
摘要翻译：一种用于在无线通信系统或网络中进行动态频率选择的方法和装置包括当接入点确定由接入点正在使用的无线信道上的干扰时开始的处理。当干扰超过干扰阈值时，接入点向由接入点为信道频谱信息服务的附属站提供请求分组。处理继续，因为附属站产生关于无线通信网络中的每个无线信道的信道频谱信息。然后，处理继续，随着附属站经由当前无线信道向接入点提供信道频谱信息。接入点解释信道频谱信息以确定无线通信网络内的多个无线信道的期望的无线信道。接入点然后经由当前无线信道向附属站提供选择分组，以指示接入点将在特定的未来时间开始使用期望的无线信道。

2. 发明申请

US20060291544A1 Feedback of channel information in a closed loop beamforming wireless communication system 有权
公开(公告)号：US20060291544A1
公开(公告)日：2006-12-28
申请号：US11412388
申请日：2006-04-27
申请人： Matthew Fischer , Joonsuk Kim , Christopher Hansen , Jason Trachewsky
发明人： Matthew Fischer , Joonsuk Kim , Christopher Hansen , Jason Trachewsky
IPC分类号： H04L5/16 , H04L1/02
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.

3. 发明申请

US20050185730A1 Asymmetrical multiple stream wireless communication using STBC 有权
标题翻译：使用STBC的不对称多流无线通信
公开(公告)号：US20050185730A1
公开(公告)日：2005-08-25
申请号：US11057842
申请日：2005-02-15
申请人： Christopher Hansen , Joonsuk Kim , Rajendra Moorti , Nambirajan Seshadri , Jason Trachewsky
发明人： Christopher Hansen , Joonsuk Kim , Rajendra Moorti , Nambirajan Seshadri , Jason Trachewsky
IPC分类号： H04L1/02
CPC分类号： H04L1/0066 , H04L1/0643 , H04L1/065 , H04L1/1671
摘要： A method of communicating data to M receiving antennas from N transmitting antennas, where M and N are integers and unequal, has the steps of sending a message to determine a number of transmit paths to be used, awaiting an acknowledgement message comprising a number of receiver paths, setting the number of transmit paths based on at least the acknowledgement message, producing data streams from outbound data based on the number of transmit paths, applying the data streams to a space/time encoder to produce encoded signals and transmitting the encoded signals from at least a portion of N transmitting antennas.
摘要翻译：从N个发送天线向M个接收天线发送数据的方法，其中M和N是整数和不等的，具有发送消息以确定要使用的发送路径的数量的步骤，等待包括多个接收机的确认消息至少基于确认消息设置发送路径的数量，基于发送路径的数量从出站数据生成数据流，将数据流应用到空间/时间编码器以产生编码信号并从 N个发射天线的至少一部分。

4. 发明申请

US20050180360A1 Preamble formats for MIMO wireless communications 有权
标题翻译：用于MIMO无线通信的前导格式
公开(公告)号：US20050180360A1
公开(公告)日：2005-08-18
申请号：US10973595
申请日：2004-10-26
申请人： Christopher Hansen , Jason Trachewsky , R. Moorti , Matthew Fischer , Christopher Young
发明人： Christopher Hansen , Jason Trachewsky , R. Moorti , Matthew Fischer , Christopher Young
IPC分类号： H04B7/06 , H04L12/28 , H04L27/26 , H04Q7/20
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。

5. 发明申请

US20050180353A1 MIMO wireless communication greenfield preamble formats 有权
标题翻译： MIMO无线通信绿田前置码格式
公开(公告)号：US20050180353A1
公开(公告)日：2005-08-18
申请号：US10973212
申请日：2004-10-26
申请人： Christopher Hansen , Jason Trachewsky , R. Tushar Moorti , Matthew Fischer , Christopher Young
发明人： Christopher Hansen , Jason Trachewsky , R. Tushar Moorti , Matthew Fischer , Christopher Young
IPC分类号： H04W84/12 , 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 determine the protocol utilized by each of the wireless communication devices within the proximal region. The method continues by determining whether the protocols of the wireless communication devices within a proximal region are of a like protocol. The method continues by determining the a number of transmit antennas. The method continues, when the protocols of the wireless communication devices within a proximal region are of the like protocol, formatting preamble of a frame of a 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：用于多输入多输出无线通信的方法通过确定由近端区域内的每个无线通信设备使用的协议来开始。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。该方法通过确定多个发射天线来继续。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，使用符号的循环移位，音调的循环移位，稀疏音分配等的格式化无线通信的帧的前导码，和基于发射天线数量的稀疏符号分配。

6. 发明申请

US20050181728A1 Configuring a MIMO communication 有权
标题翻译：配置MIMO通信
公开(公告)号：US20050181728A1
公开(公告)日：2005-08-18
申请号：US10973549
申请日：2004-10-26
申请人： Christopher Hansen , Jason Trachewsky , R. Moorti , Matthew Fischer , Christopher Young
发明人： Christopher Hansen , Jason Trachewsky , R. Moorti , Matthew Fischer , Christopher Young
IPC分类号： H04B7/00 , H04B7/06 , H04L12/28 , H04L27/26
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。

7. 发明申请

US20070263564A1 Mimo wireless communication greenfield preamble formats 失效
标题翻译： Mimo无线通信绿田前置码格式
公开(公告)号：US20070263564A1
公开(公告)日：2007-11-15
申请号：US11825869
申请日：2007-07-10
申请人： Christopher Hansen , Jason Trachewsky , R. Moorti , Matthew Fischer , Christopher Young
发明人： Christopher Hansen , Jason Trachewsky , R. Moorti , Matthew Fischer , Christopher Young
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。

8. 发明申请

US20070206519A1 RF transceiver configuring for a MIMO communication 失效
标题翻译： RF收发器配置用于MIMO通信
公开(公告)号：US20070206519A1
公开(公告)日：2007-09-06
申请号：US11800547
申请日：2007-05-07
申请人： Christopher Hansen , Jason Trachewsky , R. Moorti , Matthew Fischer , Christopher Young
发明人： Christopher Hansen , Jason Trachewsky , R. Moorti , Matthew Fischer , Christopher Young
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。

9. 发明申请

US20050180368A1 Multiple protocol wireless communications in a WLAN 有权
标题翻译： WLAN中的多协议无线通信
公开(公告)号：US20050180368A1
公开(公告)日：2005-08-18
申请号：US10857544
申请日：2004-05-28
申请人： Christopher Hansen , Jason Trachewsky , R. Moorti , Matthew Fischer
发明人： Christopher Hansen , Jason Trachewsky , R. Moorti , Matthew Fischer
IPC分类号： H04L12/28 , H04L12/56 , H04L29/06 , H04Q7/24
CPC分类号： H04L69/18 , H04L69/24 , H04W80/00 , H04W84/12
摘要： A method for multiple protocol wireless communications begins by determining protocols of wireless communication devices within a proximal region. The method then continues by determining whether the protocols of the wireless communication devices within the proximal region are of a like protocol. The method continues by, when the protocols of the wireless communication devices within the proximal region are not of a like protocol, selecting a protocol of the protocols of the wireless communication devices within the proximal region based on a protocol ordering to produce a selected protocol. The method continues by utilizing the selected protocol by the wireless communication devices within the proximal region to set up a wireless communication within the proximal region.
摘要翻译：用于多协议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。该方法然后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。当近端区域内的无线通信设备的协议不是类似的协议时，该方法继续进行，基于协议排序来选择在近端区域内的无线通信设备的协议的协议以产生所选择的协议。所述方法通过利用所述近端区域内的无线通信设备利用所选择的协议来建立所述近端区域内的无线通信。

10. 发明申请

US20080137627A1 METHOD AND SYSTEM FOR COEXISTENCE BETWEEN 20 MHZ AND 40 MHZ OVERLAPPING BASIC SERVICE SETS (OBSS) IN WIRELESS LOCAL AREA NETWORKS 有权
标题翻译：在无线局域网中20MHZ与40MHZ重叠基本服务集（OBSS）之间的共存的方法和系统
公开(公告)号：US20080137627A1
公开(公告)日：2008-06-12
申请号：US11952202
申请日：2007-12-07
申请人： Matthew Fischer , Jason Trachewsky , Vinko Erceg
发明人： Matthew Fischer , Jason Trachewsky , Vinko Erceg
IPC分类号： H04Q7/24
CPC分类号： H04W16/14 , H04L12/00 , H04L47/14 , H04W28/0215 , H04W28/18 , H04W28/20 , H04W84/12
摘要： Aspects of a method and system for coexistence between 20 MHz and 40 MHz OBSSes in WLANs. Aspects of a system may include a receiving device, such as a WLAN station (STA), which enables reception of an information frame, such as a management frame, via a wireless communication medium. The receiving device may be associated with a wireless network device group, such as a basic service set (BSS). The information frame received by the receiving device may transmitted by a transmitting device, such as a transmitting access point (AP), which is associated with a foreign wireless network device group, for example a foreign BSS. The receiving device may be reconfigured to restrict RF channel bandwidth utilized for transmitting and/or receiving signals via the wireless communication medium based on the received information frame.
摘要翻译： WLAN中20 MHz和40 MHz OBSS之间共存的方法和系统方面。系统的方面可以包括诸如WLAN站（STA）的接收设备，其能够经由无线通信介质来接收诸如管理帧的信息帧。接收设备可以与诸如基本服务集（BSS）的无线网络设备组相关联。由接收设备接收的信息帧可以由诸如与外部无线网络设备组（例如外部BSS）相关联的发送接入点（AP）等发送设备发送。接收设备可以被重新配置为基于接收到的信息帧来限制用于经由无线通信介质发送和/或接收信号的RF信道带宽。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式