公开(公告)号：US20070191063A1

公开(公告)日：2007-08-16

申请号：US11787392

申请日：2007-04-16

申请人： Ana Iacono ,  Arty Chandra ,  Zheng Zhao

发明人： Ana Iacono ,  Arty Chandra ,  Zheng Zhao

IPC分类号： H04B1/38

CPC分类号： H04W16/28

摘要： Network Allocation Vector (NAV) and “beam access control” (BAC) techniques are provided to address data collision problems in WLANs wherein APs provide wireless network access in a service area defined by multiple sectors via use of a switchable antenna system or the like. Preferably, every time the AP visits a sector and before the AP moves on to the next sector, the AP can set the NAV equal to the time it will take until its next visit. Alternatively, or in addition, a BAC bit is transmitted by an AP to control access to the AP by WTRUs disposed in a service sector in which the BAC is transmitted.

摘要翻译： 提供网络分配向量（NAV）和“波束访问控制”（BAC）技术来解决WLAN中的数据冲突问题，其中AP通过使用可切换天线系统等在由多个扇区定义的服务区域中提供无线网络接入。 优选地，每当AP访问扇区并且在AP移动到下一个扇区之前，AP可以将NAV设置为等于其下一次访问所花费的时间。 或者，或者另外，由AP发送BAC比特，以通过设置在发送BAC的服务扇区中的WTRU来控制对AP的接入。

公开(公告)号：US20060105771A1

公开(公告)日：2006-05-18

申请号：US11023861

申请日：2004-12-28

申请人： Ana Iacono ,  Arty Chandra ,  Zheng Zhao

发明人： Ana Iacono ,  Arty Chandra ,  Zheng Zhao

IPC分类号： H04Q7/20

CPC分类号： H04W16/28

摘要： Network Allocation Vector (NAV) and “beam access control” (BAC) techniques are provided to address data collision problems in WLANs wherein APs provide wireless network access in a service area defined by multiple sectors via use of a switchable antenna system or the like. Preferably, every time the AP visits a sector and before the AP moves on to the next sector, the AP can set the NAV equal to the time it will take until its next visit. Alternatively, or in addition, a BAC bit is transmitted by an AP to control access to the AP by WTRUs disposed in a service sector in which the BAC is transmitted.

摘要翻译： 提供网络分配向量（NAV）和“波束访问控制”（BAC）技术来解决WLAN中的数据冲突问题，其中AP通过使用可切换天线系统等在由多个扇区定义的服务区域中提供无线网络接入。 优选地，每当AP访问扇区并且在AP移动到下一个扇区之前，AP可以将NAV设置为等于其下一次访问所花费的时间。 或者，或者另外，由AP发送BAC比特，以通过设置在发送BAC的服务扇区中的WTRU来控制对AP的接入。

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：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：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：US20070202921A1

公开(公告)日：2007-08-30

申请号：US11742775

申请日：2007-05-01

申请人： Janet Stern-Berkowitz ,  Ana Iacono ,  Kambiz Zangi

发明人： Janet Stern-Berkowitz ,  Ana Iacono ,  Kambiz Zangi

IPC分类号： H04M1/00

CPC分类号： H04W36/18 ,  H04W16/28

摘要： Measurements for handoff are made by a wireless transmit/receive unit (WTRU) operating with a switched beam antenna in a wireless communication system. The switched beam antenna is a smart antenna generating a plurality of directional beams and an omni-directional beam. The WTRU measures signals from a plurality of cells with the omni-directional beam and/or one or more of the directional beams. The WTRU evaluates and reports to the network measurement of the omni-directional beam or the strongest beam for adding cells to an active set of cells. For removing cells from an active set of cells, the WTRU evaluates and reports to the network measurements of the antenna beam selected for communication with the active set cells.

摘要翻译： 用于切换的测量由在无线通信系统中与切换波束天线一起操作的无线发射/接收单元（WTRU）进行。 切换波束天线是产生多个定向波束和全向波束的智能天线。 WTRU使用全向波束和/或一个或多个定向波束来测量来自多个小区的信号。 WTRU评估并报告全向波束或最强波束的网络测量，以将小区添加到活动的小区集合。 为了从活动的小区集中移除小区，WTRU评估并报告被选择用于与活动集合小区通信的天线波束的网络测量。

公开(公告)号：US20050176469A1

公开(公告)日：2005-08-11

申请号：US11051138

申请日：2005-02-04

申请人： Janet Stern-Berkowitz ,  Ana Iacono ,  Kambiz Zangi

发明人： Janet Stern-Berkowitz ,  Ana Iacono ,  Kambiz Zangi

IPC分类号： H04M1/00 ,  H04W16/28 ,  H04W36/08 ,  H04W36/18 ,  H04W36/36 ,  H04W88/02

CPC分类号： H04W36/30 ,  H04W16/28 ,  H04W88/02

摘要： Measurements for identifying pre-candidate cells are made by a wireless transmit/receive unit (WTRU) operating with a switched beam antenna in a wireless communication system. The switched beam antenna is a smart antenna generating a plurality of directional beams and an omni-directional beam. The WTRU measures signals from cells not in an active set of cells to define a pre-candidate set of cells. Measured signals from cells in the pre-candidate set of cells are compared to a threshold, and the corresponding cells are moved from the pre-candidate set of cells to a candidate set of cells based upon the comparison to the threshold. A measurement report is then sent to the network.

摘要翻译： 用于识别候选前小区的测量由无线通信系统中的切换波束天线操作的无线发射/接收单元（WTRU）进行。 切换波束天线是产生多个定向波束和全向波束的智能天线。 WTRU从不在活动的小区组中的小区测量信号以定义预先选择的小区集合。 将预先选择的单元组中的单元的测量信号与阈值进行比较，并且基于与阈值的比较，将相应的单元从预先选择的单元组移动到候选单元组。 然后将测量报告发送到网络。

公开(公告)号：US20060270434A1

公开(公告)日：2006-11-30

申请号：US11216817

申请日：2005-08-31

申请人： Ana Iacono

发明人： Ana Iacono

IPC分类号： H04B7/00 ,  H04Q7/20

CPC分类号： H04B7/0604 ,  H04B7/0695 ,  H04W52/245

摘要： The present invention is a method for adjusting the uplink transmission power of a WTRU utilizing a switched beam antenna. The method measures the received power of a pilot channel beacon in order to estimate the path loss associated with each directional antenna beam. A beam correction function is calculated based on an estimated gain difference between the beam which is currently used for transmission and the beam to which the WTRU will switch. The transmission power of the WTRU is adjusted according to the beam correction function at the time of beam switching. The beam correction function is equivalent to the response of the WTRU's averaging function to the estimated gain difference, offset by the same estimated gain difference.

摘要翻译： 本发明是一种利用切换波束天线调整WTRU的上行传输功率的方法。 该方法测量导频信道信标的接收功率，以便估计与每个定向天线波束相关联的路径损耗。 基于当前用于传输的波束与WTRU将切换到的波束之间的估计增益差来计算波束校正功能。 根据波束切换时的波束校正功能来调整WTRU的发射功率。 波束校正功能等效于WTRU的平均功能对估计的增益差的响应，偏移相同的估计增益差。

公开(公告)号：US20060092887A1

公开(公告)日：2006-05-04

申请号：US11301679

申请日：2005-12-13

申请人： Ana Iacono ,  John McNally ,  Charles Dennean ,  Janet Stern-Berkowitz

发明人： Ana Iacono ,  John McNally ,  Charles Dennean ,  Janet Stern-Berkowitz

IPC分类号： H04B7/216

CPC分类号： H04W52/225 ,  H04B1/707 ,  H04W52/06 ,  H04W52/16 ,  H04W52/24 ,  H04W52/281 ,  H04W52/34

摘要： Apparatus and methods for wireless communication transmission power control are provided. Determination of gain factors and adjustments for physical channel reconfiguration in the context of transmission power control are addressed. Preferably, implementation is in conjunction with communication systems in which wireless communications are conducted between wireless transmit receive units (WTRUs) using multiple channels that are concurrently transmitted.

公开(公告)号：US20060084474A1

公开(公告)日：2006-04-20

申请号：US11066349

申请日：2005-02-25

申请人： Ana Iacono ,  Bing Chiang ,  Michael Lynch ,  Steven Goldberg

发明人： Ana Iacono ,  Bing Chiang ,  Michael Lynch ,  Steven Goldberg

IPC分类号： H04M1/00

CPC分类号： H04W16/28

摘要： A method and system for managing a cell sectorized by both an angle in azimuth and a distance from a base station are disclosed. A wireless communication system comprises a base station and a cell. The base station comprises an antenna array for generating a plurality of directional beams which are steerable both in azimuth and elevation. The cell is sectorized into a plurality of sectors defined in accordance with an angle in azimuth and a distance from the base station. At least one directional beam serves each sector. Beams serving adjacent sectors overlap each other, and a softer handover in a cell is performed in the overlapping region.

摘要翻译： 公开了一种用于管理由方位角和距离基站的距离分段化的小区的方法和系统。 无线通信系统包括基站和小区。 该基站包括用于产生可在方位角和仰角两者都可操纵的多个定向波束的天线阵列。 小区被划分成根据方位角和距离基站的距离限定的多个扇区。 至少一个定向波束服务于每个扇区。 服务于相邻扇区的光束彼此重叠，并且在重叠区域中执行小区中更软的切换。