公开(公告)号：US20090109887A1

公开(公告)日：2009-04-30

申请号：US12346337

申请日：2008-12-30

申请人： Arty Chandra ,  Eldad Zeira

发明人： Arty Chandra ,  Eldad Zeira

IPC分类号： G08C17/00

CPC分类号： H04W52/0229 ,  Y02D70/142

摘要： Method and system for reducing battery consumption during an active session wherein an access point (AP) transmits a wireless transmit/receive unit (WTRU) a packet information regarding packets in a queue waiting for transmission to the WTRU and when the packets are to be decoded, whereby enabling the WTRU to enter or remain in an OFF mode in accordance with the packet information. The AP does not send the packets to the WTRU until the AP informs the WTRU about the packet.

摘要翻译： 用于在活动会话期间减少电池消耗的方法和系统，其中接入点（AP）向无线发射/接收单元（WTRU）发送关于等待传输到WTRU的队列中的分组的分组信息，以及当分组被解码时 ，由此使得WTRU能够根据分组信息进入或保持在OFF模式。 直到AP通知WTRU关于该分组为止，AP才将该分组发送到WTRU。

公开(公告)号：US20080209297A1

公开(公告)日：2008-08-28

申请号：US11531478

申请日：2006-09-13

申请人： Arty Chandra ,  Narayan Parappil Menon ,  Stephen E. Terry ,  Junsung Lim

发明人： Arty Chandra ,  Narayan Parappil Menon ,  Stephen E. Terry ,  Junsung Lim

IPC分类号： H04L1/08 ,  G06F11/14 ,  H04B7/00

CPC分类号： H04W24/02 ,  H04L1/1812 ,  H04L1/1838 ,  H04L1/1841 ,  H04L1/1848 ,  H04L1/188

摘要： A method for transmitting a packet from a transmitter to a receiver in a wireless communication system begins by building a packet by a transport format combination (TFC) selection process, and the packet is transmitted from the transmitter to the receiver. If the transmitter receives an indication that the packet was not successfully received at the receiver, the packet is retransmitted via a hybrid automatic repeat request (HARQ) procedure. If the HARQ procedure did not successfully transmit the packet, then the packet is retransmitted via a retransmission management (RM) procedure. If the RM procedure did not successfully transmit the packet, then the packet is discarded by the transmitter.

摘要翻译： 一种在无线通信系统中从发射机向接收机发送分组的方法是通过以传输格式组合（TFC）选择过程建立分组开始的，分组从发射机发射到接收机。 如果发射机接收到在接收机未成功接收到分组的指示，则通过混合自动重传请求（HARQ）过程来重传分组。 如果HARQ过程没有成功发送该分组，则通过重传管理（RM）过程来重传该分组。 如果RM程序没有成功发送数据包，则该数据包被发送器丢弃。

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：US20080045228A1

公开(公告)日：2008-02-21

申请号：US11840755

申请日：2007-08-17

申请人： Guodong Zhang ,  Christopher Cave ,  Guang Lu ,  Paul Marinier ,  Arty Chandra ,  Sudheer Grandhi

发明人： Guodong Zhang ,  Christopher Cave ,  Guang Lu ,  Paul Marinier ,  Arty Chandra ,  Sudheer Grandhi

IPC分类号： H04Q7/20

CPC分类号： H04W72/0406 ,  H04L1/0015 ,  H04L1/0026 ,  H04L1/0029 ,  H04L1/1607 ,  H04L1/1854 ,  H04L1/1861 ,  H04L12/189 ,  H04L2001/0093 ,  H04W72/005 ,  H04W74/0866

摘要： The present invention is related to a method and system for sending and reducing uplink feedback signaling by a wireless transmit/receive unit (WTRU) related to transmission of multimedia broadcast multicast service (MBMS) data over a high speed downlink packet access (HSDPA) channel. A Node B may pre-allocate a time/frequency region or a common channelization code for the feedback. A triggering criterion for reporting a channel quality indicator (CQI) is set and WTRUs send a CQI to a Node B only if the triggering criterion is satisfied. The triggering criterion may be a current operating CQI value at the Node B, or based on erroneous transport block reception statistics, or a predetermined time period. A feedback reduction method related to ACK/NACK includes the WTRU sending an indication of an average number of transmissions needed to successfully decode the data instead of sending an ACK/NACK for every transmission interval.

摘要翻译： 本发明涉及一种用于通过高速下行链路分组接入（HSDPA）信道传输多媒体广播多播服务（MBMS）数据的无线发射/接收单元（WTRU）发送和减少上行链路反馈信令的方法和系统。 。 节点B可以预先分配用于反馈的时间/频率区域或公共信道化码。 设置用于报告信道质量指示符（CQI）的触发标准，并且仅当满足触发标准时，WTRU才向节点B发送CQI。 触发标准可以是节点B处的当前操作CQI值，或者基于错误的传输块接收统计信息或预定时间段。 与ACK / NACK相关的反馈减少方法包括WTRU发送成功解码数据所需的平均传输数量的指示，而不是为每个传输间隔发送ACK / NACK。

公开(公告)号：US20070167140A1

公开(公告)日：2007-07-19

申请号：US11562483

申请日：2006-11-22

申请人： Sudheer A. Grandhi ,  Arty Chandra ,  Eldad M. Zeira ,  Joseph S. Levy

发明人： Sudheer A. Grandhi ,  Arty Chandra ,  Eldad M. Zeira ,  Joseph S. Levy

IPC分类号： H04B1/40

CPC分类号： H04W48/12

摘要： A method and apparatus for distributing beacon information includes a first WTRU modifying a physical layer convergence protocol (PLCP) header in a physical protocol data unit (PHY PDU) frame to include beacon information. The first WTRU transmits the modified PLCP header to a second WTRU. The second WTRU receives the modified PLCP header and extracts beacon information from the modified PLCP header. The second WTRU associates with the first WTRU.

摘要翻译： 用于分发信标信息的方法和装置包括：第一WTRU修改物理协议数据单元（PHY PDU）帧中的物理层汇聚协议（PLCP）报头以包括信标信息。 第一WTRU将经修改的PLCP报头发送到第二WTRU。 第二WTRU接收修改的PLCP报头，并从修改的PLCP报头中提取信标信息。 第二WTRU与第一WTRU相关联。

公开(公告)号：US20070149249A1

公开(公告)日：2007-06-28

申请号：US11608477

申请日：2006-12-08

申请人： John Chen ,  Robert Olesen ,  Guodong Zhang ,  Sung-Hyuk Shin ,  Junsung Lim ,  Arty Chandra ,  Sudheer Grandhi

发明人： John Chen ,  Robert Olesen ,  Guodong Zhang ,  Sung-Hyuk Shin ,  Junsung Lim ,  Arty Chandra ,  Sudheer Grandhi

IPC分类号： H04B1/38

CPC分类号： H04L5/0007 ,  H04L1/0026 ,  H04L5/0037 ,  H04L5/0048 ,  H04L5/006 ,  H04L5/0085 ,  H04L25/022 ,  H04L25/0226 ,  H04L25/0232 ,  H04W72/08

摘要： In an orthogonal frequency division multiple access (OFDMA) system including at least one base station and at least one wireless transmit/receive unit (WTRU), sub-carriers are allocated for data transmissions to multiple access WTRUs, where sub-carriers are allocated according to a consecutive sub-carrier allocation (CSA) type and a distributed sub-carrier allocation (DSA) type. Pilot signals with distributed pilot sub-carriers are transmitted and measured at each WTRU to obtain a channel quality metric for each pilot sub-carrier. Each WTRU sends feedback to the base station reporting channel quality based on the measured channel quality metrics. An allocation type is selected and adaptively switched according to channel variations in time and frequency domain.

摘要翻译： 在包括至少一个基站和至少一个无线发射/接收单元（WTRU）的正交频分多址（OFDMA）系统中，分配了用于向多个接入WTRU进行数据传输的子载波，其中根据 连续的子载波分配（CSA）类型和分布式子载波分配（DSA）类型。 在每个WTRU处，发射和测量具有分布式导频子载波的导频信号，以获得每个导频子载波的信道质量度量。 每个WTRU基于所测量的信道质量度量向基站报告信道质量的反馈。 根据时域和频域的频道变化选择分配类型并进行自适应切换。

公开(公告)号：US20060165035A1

公开(公告)日：2006-07-27

申请号：US11234792

申请日：2005-09-23

申请人： Arty Chandra ,  Joseph Levy ,  Sudheer Grandhi ,  Eldad Zeira

发明人： Arty Chandra ,  Joseph Levy ,  Sudheer Grandhi ,  Eldad Zeira

IPC分类号： H04Q7/00 ,  H04L12/56

CPC分类号： H04W28/16 ,  H04W76/14 ,  H04W84/18

摘要： A peer-to-peer communication system using a direct link setup (DLS) is disclosed. A mobile station (STA) establishes a direct communication link with another STA by sending a message requesting a DLS to an access point (AP), (i.e., a centralized controller). The AP may accept or reject the DLS request based on channel measurements. If the DLS request is accepted, the DLS is established such that the STAs may directly communicate with each other. An established DLS connection may be torn down by the AP sending a message including a DLS teardown request to one of the STAs, or based on channel measurements. The system may be an Ad hoc network comprising a plurality of STAs without an AP where each STA maintains a database of one-hop and two-hop STAs, and establishes a direct link to other STAs after informing neighboring STAs of an intention to establish a direct communication link.

摘要翻译： 公开了一种使用直接链路建立（DLS）的对等通信系统。 移动站（STA）通过向接入点（AP）（即集中式控制器）发送请求DLS的消息来建立与另一个STA的直接通信链路。 AP可以基于信道测量接受或拒绝DLS请求。 如果DLS请求被接受，则建立DLS使得STA可以直接相互通信。 AP可以将建立的DLS连接拆除，其中包括向一个STA发送包括DLS拆卸请求的消息，或者基于信道测量。 该系统可以是包括多个没有AP的STA的Ad hoc网络，其中每个STA维护一跳和两跳STA的数据库，并且在通知相邻STA之后建立与其他STA的直接链路，以建立 直接沟通链接

公开(公告)号：US07016673B2

公开(公告)日：2006-03-21

申请号：US10675893

申请日：2003-09-29

申请人： Gautam G. Reddy ,  Prabhakar R. Chitrapu ,  Leonid Kazakevich ,  Teresa Joanne Hunkeler ,  Arty Chandra

发明人： Gautam G. Reddy ,  Prabhakar R. Chitrapu ,  Leonid Kazakevich ,  Teresa Joanne Hunkeler ,  Arty Chandra

IPC分类号： H04Q7/20

CPC分类号： H04W88/04 ,  G01S5/0027 ,  H04W4/02 ,  H04W64/00 ,  H04W84/00 ,  H04W88/06

摘要： A wireless network provides controlled wireless communications with multi-mode wireless WTRUs. The wireless network has at least one base station having a transceiver operating in an infrastructure communication mode with multi mode WTRUs and a controller that transmits control signals via infrastructure communications with a WTRU that control peer-to-peer mode communications of that WTRU with other WTRUs. A WTRU has transceiver components configured for selective operation in an infrastructure communication mode with a network base station and in a peer-to-peer communication mode with other WTRUs. The WTRU also has a transceiver controller configured to selectively control peer-to-peer mode communications with other WTRUs based on communication signals received in infrastructure communications with a network base station. Preferably, the transceiver controller is configured to control the transceiver components to switch between infrastructure communication mode and peer-to-peer communication mode based on Quality of Service criteria.

摘要翻译： 无线网络提供与多模式无线WTRU的受控无线通信。 无线网络具有至少一个基站，其具有在具有多模式WTRU的基础设施通信模式中操作的收发器和经由与WTRU的基础设施通信的控制信号的控制器，所述WTRU控制该WTRU与其他WTRU的对等模式通信 。 WTRU具有被配置为在与基站通信模式中的选择性操作并且与其他WTRU的对等通信模式中的选择性操作的收发器组件。 WTRU还具有收发器控制器，其被配置为基于在与基站通信的基础设施通信中接收的通信信号来选择性地控制与其他WTRU的对等模式通信。 优选地，收发器控制器被配置为基于服务质量标准来控制收发器组件在基础设施通信模式和对等通信模式之间切换。

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。

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。