公开(公告)号：US20060203789A1

公开(公告)日：2006-09-14

申请号：US11302299

申请日：2005-12-13

申请人： Ana Iacono ,  Arty Chandra ,  Inhyok Cha ,  John Chen ,  Yingxue Li ,  James Otto

发明人： Ana Iacono ,  Arty Chandra ,  Inhyok Cha ,  John Chen ,  Yingxue Li ,  James Otto

IPC分类号： H04Q7/24 ,  H04L12/66

CPC分类号： H04B7/0608 ,  H04W16/28 ,  H04W72/046

摘要： An apparatus and a method for improving packet transmission and reducing latency in VoIP over WLAN using switched beam antennas having multiple directional antenna beams are disclosed. In an access point having a switched beam antenna, or other smart antenna system, the present invention extends the coverage area of an access point for authentication and association of a new WTRU, extends the access points coverage area during in session transmissions with a WTRU, and adjusts data rates. The method also controls Contention Period (CP)/Contention Free Period (CFP) timing amongst beams emanating from an access point having a switched beam antenna, or other smart antenna system. Fast diversity switching, frame level switching, lowered data rates, and scanning multiple directional antenna beams for the optimum transmission beam are disclosed to improve beam selection and packet transmission.

摘要翻译： 公开了一种使用具有多个定向天线波束的切换波束天线来改善分组传输并减少VoIP中的VoIP延迟的装置和方法。 在具有切换波束天线或其它智能天线系统的接入点中，本发明扩展用于新WTRU的认证和关联的接入点的覆盖区域，在与WTRU的会话传输期间扩展接入点覆盖区域， 并调整数据速率。 该方法还控制从具有切换波束天线或其他智能天线系统的接入点发出的波束之间的竞争周期（CP）/无竞争周期（CFP）定时。 公开了快速分集切换，帧级切换，降低数据速率和扫描用于最佳传输波束的多方向天线波束，以改善波束选择和分组传输。

公开(公告)号：US20050285803A1

公开(公告)日：2005-12-29

申请号：US11144113

申请日：2005-06-03

申请人： Ana Iacono ,  Arty Chandra ,  Daniel Steinbach ,  Inhyok Cha ,  James Otto ,  Kevin Johnson ,  Stanley Gutowski ,  Kai Liu ,  Angelo Cuffaro ,  Janet Stern-Berkowitz

发明人： Ana Iacono ,  Arty Chandra ,  Daniel Steinbach ,  Inhyok Cha ,  James Otto ,  Kevin Johnson ,  Stanley Gutowski ,  Kai Liu ,  Angelo Cuffaro ,  Janet Stern-Berkowitz

IPC分类号： H04W16/24 ,  H04Q7/00

CPC分类号： H04W16/24 ,  H04B7/0695 ,  H04B7/088

摘要： An access point operates in an 802.11 wireless communication network communicating with a client station, and includes a smart antenna for generating directional antenna beams and an omni-directional antenna beam. An antenna steering algorithm scans the directional antenna beams and the omni-directional antenna beam for receiving signals from the client station. The signals received via each scanned antenna beam are measured, and one of the antenna beams is selected based upon the measuring for communicating with the client station. The selected antenna beam is preferably a directional antenna beam. Once the directional antenna beam has been selected, there are several usage rules for exchanging data with the client station. The usage rules are directed to an active state of the access point, which includes a data transmission mode and a data reception mode.

摘要翻译： 接入点在与客户站通信的802.11无线通信网络中操作，并且包括用于生成定向天线波束的智能天线和全向天线波束。 天线导向算法扫描定向天线波束和全向天线波束，用于从客户端接收信号。 测量经由每个扫描天线波束接收到的信号，并且基于与客户站进行通信的测量来选择天线波束之一。 所选择的天线波束优选地是定向天线波束。 一旦选择了定向天线波束，就有几种与客户端交换数据的使用规则。 使用规则被引导到接入点的活动状态，其包括数据传输模式和数据接收模式。

公开(公告)号：US20060063492A1

公开(公告)日：2006-03-23

申请号：US11022709

申请日：2004-12-27

申请人： Ana Iacono ,  Arty Chandra ,  Inhyok Cha ,  Paul Marinier ,  Vincent Roy

发明人： Ana Iacono ,  Arty Chandra ,  Inhyok Cha ,  Paul Marinier ,  Vincent Roy

IPC分类号： H04B17/00

CPC分类号： H04B7/0632 ,  H04B7/0408 ,  H04B7/0619 ,  H04B7/0695 ,  H04B7/088 ,  H04B17/10 ,  H04B17/24 ,  H04B17/318 ,  H04B17/336 ,  H04L5/14 ,  H04W24/08 ,  H04W84/12

摘要： A method for taking measurements with a smart antenna in a wireless communication system having a plurality of STAs begins by sending a measurement request from a first STA to a second STA. At least two measurement packets are transmitted consecutively from the second STA to the first STA. Each measurement packet is received at the first STA using a different antenna beam. The first STA performs measurements on each measurement packet and selects an antenna beam direction based on the measurement results.

公开(公告)号：US07917092B2

公开(公告)日：2011-03-29

申请号：US11302299

申请日：2005-12-13

申请人： Ana Lucia Iacono ,  Arty Chandra ,  Inhyok Cha ,  John S. Chen ,  Yingxue Li ,  James C. Otto

发明人： Ana Lucia Iacono ,  Arty Chandra ,  Inhyok Cha ,  John S. Chen ,  Yingxue Li ,  James C. Otto

IPC分类号： H04B1/00 ,  H04B15/00 ,  H04B17/00 ,  H04M1/00 ,  H04W4/00

CPC分类号： H04B7/0608 ,  H04W16/28 ,  H04W72/046

摘要： An apparatus and a method for improving packet transmission and reducing latency in VoIP over WLAN using switched beam antennas having multiple directional antenna beams are disclosed. In an access point having a switched beam antenna, or other smart antenna system, the present invention extends the coverage area of an access point for authentication and association of a new WTRU, extends the access points coverage area during in session transmissions with a WTRU, and adjusts data rates. The method also controls Contention Period (CP)/Contention Free Period (CFP) timing amongst beams emanating from an access point having a switched beam antenna, or other smart antenna system. Fast diversity switching, frame level switching, lowered data rates, and scanning multiple directional antenna beams for the optimum transmission beam are disclosed to improve beam selection and packet transmission.

摘要翻译： 公开了一种使用具有多个定向天线波束的切换波束天线来改善分组传输并减少VoIP中的VoIP延迟的装置和方法。 在具有切换波束天线或其它智能天线系统的接入点中，本发明扩展用于新WTRU的认证和关联的接入点的覆盖区域，在与WTRU的会话传输期间扩展接入点覆盖区域， 并调整数据速率。 该方法还控制从具有切换波束天线或其他智能天线系统的接入点发出的波束之间的竞争周期（CP）/无竞争周期（CFP）定时。 公开了快速分集切换，帧级切换，降低数据速率和扫描用于最佳传输波束的多方向天线波束，以改善波束选择和分组传输。

公开(公告)号：US07697626B2

公开(公告)日：2010-04-13

申请号：US11377152

申请日：2006-03-16

申请人： Jin Wang ,  Arty Chandra ,  Inhyok Cha ,  Yingxue Li

发明人： Jin Wang ,  Arty Chandra ,  Inhyok Cha ,  Yingxue Li

IPC分类号： H04L1/02

CPC分类号： H04B7/0695 ,  H04B7/088 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0025

摘要： A method and apparatus for selecting a beam combination of beam switched antennas in a multiple-input multiple-output (MIMO) wireless communication system including a first node and a second node. The first node sends a plurality of modulation and coding scheme (MCS) requests to the second node. Each of the plurality of MCS requests is sent using a particular beam combination. The second node receives the MCS requests and generates MCS feedback signals for each of the MCS requests. Each MCS feedback signal includes an MCS recommendation for the particular beam. The first node selects a beam combination for communicating with the second node based on the MCS recommendations.

摘要翻译： 一种用于在包括第一节点和第二节点的多输入多输出（MIMO）无线通信系统中选择波束切换天线的波束组合的方法和装置。 第一节点向第二节点发送多个调制和编码方案（MCS）请求。 使用特定的波束组合发送多个MCS请求中的每一个。 第二节点接收MCS请求，并为每个MCS请求生成MCS反馈信号。 每个MCS反馈信号包括针对特定波束的MCS推荐。 第一节点基于MCS建议选择用于与第二节点进行通信的波束组合。

公开(公告)号：US20070165736A1

公开(公告)日：2007-07-19

申请号：US11377152

申请日：2006-03-16

申请人： Jin Wang ,  Arty Chandra ,  Inhyok Cha ,  Yingxue Li

发明人： Jin Wang ,  Arty Chandra ,  Inhyok Cha ,  Yingxue Li

IPC分类号： H04L1/02

CPC分类号： H04B7/0695 ,  H04B7/088 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0025

摘要： A method and apparatus for selecting a beam combination of beam switched antennas in a multiple-input multiple-output (MIMO) wireless communication system including a first node and a second node. The first node sends a plurality of modulation and coding scheme (MCS) requests to the second node. Each of the plurality of MCS requests is sent using a particular beam combination. The second node receives the MCS requests and generates MCS feedback signals for each of the MCS requests. Each MCS feedback signal includes an MCS recommendation for the particular beam. The first node selects a beam combination for communicating with the second node based on the MCS recommendations.

摘要翻译： 一种用于在包括第一节点和第二节点的多输入多输出（MIMO）无线通信系统中选择波束切换天线的波束组合的方法和装置。 第一节点向第二节点发送多个调制和编码方案（MCS）请求。 使用特定的波束组合发送多个MCS请求中的每一个。 第二节点接收MCS请求，并为每个MCS请求生成MCS反馈信号。 每个MCS反馈信号包括针对特定波束的MCS推荐。 第一节点基于MCS建议选择用于与第二节点进行通信的波束组合。

公开(公告)号：US08504110B2

公开(公告)日：2013-08-06

申请号：US11066915

申请日：2005-02-25

申请人： Arty Chandra ,  Inhyok Cha ,  Paul Marinier ,  Vincent Roy

发明人： Arty Chandra ,  Inhyok Cha ,  Paul Marinier ,  Vincent Roy

IPC分类号： H04M1/00

CPC分类号： H04W24/02 ,  H04B7/0628 ,  H04B7/0689 ,  H04W28/18 ,  H04W84/12

摘要： A system for exchanging smart antenna capability information between a transmitting station (STA) and a receiving STA in a wireless communication system includes an antenna capability information element (IE) that includes information regarding the capability of the transmitting STA. The antenna capability IE is sent from the transmitting STA to the receiving STA prior to data transmission between the transmitting STA and the receiving STA. When used in a wireless local area network, the antenna capability IE can be sent as part of a management frame, control frame, or data frame.

摘要翻译： 一种用于在无线通信系统中的发送站（STA）和接收STA之间交换智能天线能力信息的系统包括：天线能力信息元素（IE），其包括关于发送STA的能力的信息。 在发送STA和接收STA之间的数据传输之前，天线能力IE从发送STA发送到接收STA。 当在无线局域网中使用时，天线能力IE可以作为管理帧，控制帧或数据帧的一部分发送。

公开(公告)号：US08995921B2

公开(公告)日：2015-03-31

申请号：US11022709

申请日：2004-12-27

申请人： Ana Lucia Iacono ,  Arty Chandra ,  Inhyok Cha ,  Paul Marinier ,  Vincent Roy

发明人： Ana Lucia Iacono ,  Arty Chandra ,  Inhyok Cha ,  Paul Marinier ,  Vincent Roy

IPC分类号： H04B17/00 ,  H04B7/04 ,  H04B7/06 ,  H04B7/08

CPC分类号： H04B7/0632 ,  H04B7/0408 ,  H04B7/0619 ,  H04B7/0695 ,  H04B7/088 ,  H04B17/10 ,  H04B17/24 ,  H04B17/318 ,  H04B17/336 ,  H04L5/14 ,  H04W24/08 ,  H04W84/12

摘要： A method for taking measurements with a smart antenna in a wireless communication system having a plurality of STAs begins by sending a measurement request from a first STA to a second STA. At least two measurement packets are transmitted consecutively from the second STA to the first STA. Each measurement packet is received at the first STA using a different antenna beam. The first STA performs measurements on each measurement packet and selects an antenna beam direction based on the measurement results.

摘要翻译： 在具有多个STA的无线通信系统中用智能天线进行测量的方法，是从第一STA向第二STA发送测量请求开始的。 至少两个测量分组从第二STA连续发送到第一STA。 使用不同的天线波束在第一STA处接收每个测量分组。 第一STA对每个测量分组进行测量，并根据测量结果选择天线波束方向。

公开(公告)号：US07366464B2

公开(公告)日：2008-04-29

申请号：US11144113

申请日：2005-06-03

申请人： Ana Lucia Iacono ,  Arty Chandra ,  Daniel P. Steinbach ,  Inhyok Cha ,  James C. Otto ,  Kevin P. Johnson ,  Stanley Gutowski ,  Kai Liu ,  Angelo Cuffaro ,  Janet Stern-Berkowitz

发明人： Ana Lucia Iacono ,  Arty Chandra ,  Daniel P. Steinbach ,  Inhyok Cha ,  James C. Otto ,  Kevin P. Johnson ,  Stanley Gutowski ,  Kai Liu ,  Angelo Cuffaro ,  Janet Stern-Berkowitz

IPC分类号： H04B7/14

CPC分类号： H04W16/24 ,  H04B7/0695 ,  H04B7/088

摘要： An access point operates in an 802.11 wireless communication network communicating with a client station, and includes a smart antenna for generating directional antenna beams and an omni-directional antenna beam. An antenna steering algorithm scans the directional antenna beams and the omni-directional antenna beam for receiving signals from the client station. The signals received via each scanned antenna beam are measured, and one of the antenna beams is selected based upon the measuring for communicating with the client station. The selected antenna beam is preferably a directional antenna beam. Once the directional antenna beam has been selected, there are several usage rules for exchanging data with the client station. The usage rules are directed to an active state of the access point, which includes a data transmission mode and a data reception mode.

摘要翻译： 接入点在与客户站通信的802.11无线通信网络中操作，并且包括用于生成定向天线波束的智能天线和全向天线波束。 天线导向算法扫描定向天线波束和全向天线波束，用于从客户端接收信号。 测量经由每个扫描天线波束接收到的信号，并且基于与客户站进行通信的测量来选择天线波束之一。 所选择的天线波束优选地是定向天线波束。 一旦选择了定向天线波束，就有几种与客户端交换数据的使用规则。 使用规则被引导到接入点的活动状态，其包括数据传输模式和数据接收模式。

公开(公告)号：US20060057964A1

公开(公告)日：2006-03-16

申请号：US11018794

申请日：2004-12-21

申请人： Vincent Roy ,  Paul Marinier ,  Arty Chandra ,  Inhyok Cha

发明人： Vincent Roy ,  Paul Marinier ,  Arty Chandra ,  Inhyok Cha

IPC分类号： H04B17/00

CPC分类号： H04B7/0408 ,  H04W16/28

摘要： A method for implementing a smart antenna in establishing association between a station (STA) and an access point (AP) in a wireless local area network begins by transmitting a beacon frame by the AP on one antenna beam. The beacon frame is received at the STA, which measures the signal quality of the beacon frame. The AP switches to a different antenna beam and repeats the method until the beacon frame has been transmitted on all antenna beams. The STA associates to the AP that transmits the beacon frame with the highest signal quality on one of its antenna beams. A similar method may be used in which the STA sends a probe request frame to the AP, which then responds with probe response frames sent on multiple antenna beams.

摘要翻译： 在无线局域网中建立站（STA）和接入点（AP）之间的关联的实现智能天线的方法是通过一个天线波束上的AP发送信标帧开始的。 在STA处接收信标帧，其测量信标帧的信号质量。 AP切换到不同的天线波束并重复该方法，直到在所有天线波束上发送信标帧为止。 STA将AP与其一个天线波束上发送具有最高信号质量的信标帧相关联。 可以使用类似的方法，其中STA向AP发送探测请求帧，该AP然后在多个天线波束上发送的探测响应帧进行响应。