公开(公告)号：WO2005065271A3

公开(公告)日：2006-11-09

申请号：PCT/US2004043404

申请日：2004-12-22

Applicant: INTERDIGITAL TECH CORP ,  CHANDRA ARTY ,  HUNKELER TERESA JOANNE

Inventor： CHANDRA ARTY ,  HUNKELER TERESA JOANNE

IPC: H04B7/005 ,  H04W52/28

CPC classification number: H04W52/288

Abstract: Method and apparatus employed by wireless network (10) components such as access points (APs) (10) for controlling transmitting power level of individual wireless transmitter/receiver units (WTRUs) (10) by establishing a power transmit level based on prior transmit and receiving transmission and reception statistics (S7)such as signal to noise ratio (SNR), bit error rate (BER), frame error rate (FER) and/or the like. Power transmit level information is preferably communicated through any one of a clear to send (CTS), request to send (RTS), data and acknowledge (ACK) frame. Alternatively the power control information may be inserted into a beacon frame or an individual control frame specifically designated for power control. The WTRUs preferably have battery level sensors (S2) and adjust power control level responsive to a sensed battery level (S4). Alternatively, the APs and WTRUs may reverse roles and the WTRUs may provide power transmit level information to an AP to facilitate transmissions by the AP.

Abstract translation: 无线网络（10）所采用的方法和装置，例如接入点（AP）（10），用于通过基于先前的传输建立功率发射电平来控制各个无线发射机/接收机单元（WTRU）（10）的发射功率电平 接收诸如信噪比（SNR），误码率（BER），帧错误率（FER）等的发送和接收统计（S7）等。 功率发送电平信息优选地通过清除发送（CTS），发送请求（RTS），数据和确认（ACK）帧中的任何一个来传送。 或者，功率控制信息可以被插入到专门用于功率控制的信标帧或单独的控制帧中。 WTRU优选地具有电池电平传感器（S2）并且响应于检测到的电池电平来调整功率控制电平（S4）。 或者，AP和WTRU可以反转角色，并且WTRU可以向AP提供功率发射级别信息以便于AP的传输。

公开(公告)号：WO2006020520A3

公开(公告)日：2006-07-06

申请号：PCT/US2005027956

申请日：2005-08-05

Applicant: INTERDIGITAL TECH CORP ,  GRANDHI SUDHEER A ,  CHANDRA ARTY ,  LEVY JOSEPH S ,  SHAHEEN KAMEL M ,  TERRY STEPHEN E ,  ZEIRA ELDAD

Inventor： GRANDHI SUDHEER A ,  CHANDRA ARTY ,  LEVY JOSEPH S ,  SHAHEEN KAMEL M ,  TERRY STEPHEN E ,  ZEIRA ELDAD

IPC: H04L12/28 ,  H04W74/04

CPC classification number: H04W48/10 ,  H04B7/02 ,  H04B7/0413 ,  H04B7/2612 ,  H04W72/005 ,  H04W72/0446 ,  H04W74/08 ,  H04W74/0816 ,  H04W84/12 ,  H04W88/08 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/142 ,  Y02D70/22 ,  Y02D70/23 ,  Y02D70/442 ,  Y02D70/449

Abstract: A method and system for controlling access to a medium in a wireless communication system. A superframe structure is defined in time domain to include a contention free period (CFP) which has at least one scheduled resource allocation (SRA) (3712), at least one management SRA (MSRA) (3718) and a contention period. An extended beacon (EB) (3746) including information about the SRA and MSRA is transmitted for. The architecture reduces station battery consumption, supports higher throughput for non-real time (NRT) traffic and is more efficient for real time (RT) traffic while maintaining full compatibility.

Abstract translation: 一种在无线通信系统中控制对介质的访问的方法和系统。 在时域中定义了超帧结构，以包括具有至少一个调度资源分配（SRA）（3712），至少一个管理SRA（MSRA）（3718）和争用周期的无竞争周期（CFP））。 发送包括关于SRA和MSRA的信息的扩展信标（EB）（3746）。 该架构降低了站电池消耗，支持非实时（NRT）流量的更高吞吐量，并且对于实时（RT）流量更有效，同时保持完全兼容性。

公开(公告)号：WO2008024282A3

公开(公告)日：2008-10-02

申请号：PCT/US2007018278

申请日：2007-08-17

Applicant: INTERDIGITAL TECH CORP ,  SAMMOUR MOHAMMED ,  CHANDRA ARTY ,  TERRY STEPHEN E ,  WANG JIN

Inventor： SAMMOUR MOHAMMED ,  CHANDRA ARTY ,  TERRY STEPHEN E ,  WANG JIN

IPC: H04L1/18

CPC classification number: H04L1/1685 ,  H04L1/1812 ,  H04L1/187 ,  H04L2001/125

Abstract: A transmitter may instruct a receiver to move a receive window if the transmitter cannot retransmit a packet in response to an automatic repeat request (ARQ) status report and a hybrid ARQ (HARQ) feedback error report. The transmitter may advance a transmit window upon receipt of a local acknowledgement if the packet is in an ongoing flow and advance the transmit window when the packet is acknowledged by a status report if the packet is an isolated packet. The transmitter may perform a retransmission based on context in which the retransmission is requested. The transmitter may send an acknowledgement to the status report or the HARQ feedback error report. The transmitter may specify whether an HARQ feedback error report or a status report is allowed. The receiver may adjust the level of robustness and error protection for the HARQ feedback based on an indication from the transmitter.

Abstract translation: 如果发射机不能响应于自动重复请求（ARQ）状态报告和混合ARQ（HARQ）反馈错误报告而重发分组，则发射机可以指示接收机移动接收窗口。 如果分组处于正在进行的流程中，则发送器可以在接收到本地确认时推进发送窗口，并且如果分组是分离的分组，则当分组被状态报告确认时推进发送窗口。 发射机可以基于请求重传的上下文来执行重传。 发射机可以向状态报告或HARQ反馈错误报告发送确认。 发射机可指定是否允许HARQ反馈错误报告或状态报告。 接收机可以基于来自发射机的指示来调整HARQ反馈的鲁棒性和错误保护的水平。

公开(公告)号：WO2008024321A2

公开(公告)日：2008-02-28

申请号：PCT/US2007018440

申请日：2007-08-20

Applicant: INTERDIGITAL TECH CORP ,  WANG JIN ,  SAMMOUR MOHAMMED ,  CHANDRA ARTY

Inventor： WANG JIN ,  SAMMOUR MOHAMMED ,  CHANDRA ARTY

IPC: H04W72/04 ,  H04W72/12

CPC classification number: H04W72/1236 ,  H04B1/713 ,  H04L1/18 ,  H04L5/0007 ,  H04L5/003 ,  H04L5/0064 ,  H04L5/0094 ,  H04L5/0096 ,  H04L47/15 ,  H04L47/70 ,  H04L47/762 ,  H04L47/824 ,  H04W72/0446

Abstract: A method and apparatus are provided for dynamic resource allocation, scheduling and signaling for variable data real time services (RTS) in long term evolution (LTE) systems. Preferably, changes in data rate for uplink RTS traffic are reported to an evolved Node B (eNB) by a UE using layer 1, 2 or 3 signaling. The eNB dynamically allocates physical resources in response to a change in data rate by adding or removing radio blocks currently assigned to the data flow, and the eNB signals the new resource assignment to the UE. In an alternate embodiment, tables stored at the eNB and the UE describe mappings of RTS data rates to physical resources under certain channel conditions, such that the UE uses the table to locally assign physical resources according to changes in UL data rates. Additionally, a method and apparatus for high level configuration of RTS data flows is also presented.

Abstract translation: 提供了一种用于长期演进（LTE）系统中的可变数据实时业务（RTS）的动态资源分配，调度和信令的方法和装置。 优选地，上行链路RTS业务的数据速率的变化由UE使用层1,2或3信令向进化节点B（eNB）报告。 eNB通过添加或删除当前分配给数据流的无线电块来动态地分配物理资源以响应数据速率的变化，并且eNB向UE发送新的资源分配信号。 在替代实施例中，存储在eNB和UE处的表描述了在某些信道条件下RTS数据速率与物理资源的映射，使得UE根据UL数据速率的变化使用该表来本地分配物理资源。 另外，还提出了用于RTS数据流的高级配置的方法和装置。

公开(公告)号：WO2007079085A3

公开(公告)日：2007-10-25

申请号：PCT/US2006049306

申请日：2006-12-27

Applicant: INTERDIGITAL TECH CORP ,  TERRY STEPHEN E ,  CHANDRA ARTY

Inventor： TERRY STEPHEN E ,  CHANDRA ARTY

IPC: H04L1/18

CPC classification number: H04L1/1851 ,  H04L1/1838 ,  H04L2001/125

Abstract: A method and system for implementing hybrid automatic repeat request (H-ARQ)-assisted automatic repeat request (ARQ) in a wireless communication system are disclosed. When an H-ARQ negative acknowledgement (NACK)-to-positive acknowledgement (ACK) error occurs, the H-ARQ receiver sends an H-ARQ NACK-to-ACK error indicator to the H-ARQ transmitter unless a maximum retransmission limit has reached, a maximum time for delivery has expired or a lifespan of the failed packet has expired. The H-ARQ transmitter sends a local NACK to the ARQ transmitter so that the failed packet is recovered at an ARQ level. The H-ARQ receiver sends a local NACK to the ARQ receiver if the H-ARQ receiver does not receive the failed packet before certain conditions occur. The ARQ receiver may send a status report to the ARQ transmitter for recovery of the failed packet.

Abstract translation: 公开了一种用于在无线通信系统中实现混合自动重传请求（H-ARQ）辅助自动重传请求（ARQ）的方法和系统。 当发生H-ARQ否定确认（NACK） - 肯定确认（ACK）错误时，H-ARQ接收机向H-ARQ发射机发送H-ARQ NACK-至-ACK错误指示符，除非最大重传限制具有 到达，交付的最大时间已到期或发生故障的数据包的寿命已过期。 H-ARQ发射机向ARQ发射机发送本地NACK，使得在ARQ级恢复失败的分组。 如果在某些情况发生之前H-ARQ接收器没有接收到失败的分组，则H-ARQ接收器向ARQ接收器发送本地NACK。 ARQ接收机可以向ARQ发射机发送状态报告以恢复失败的分组。

公开(公告)号：WO2007050231A3

公开(公告)日：2007-07-05

申请号：PCT/US2006038269

申请日：2006-09-28

Applicant: INTERDIGITAL TECH CORP ,  CHANDRA ARTY ,  MENON NARAYAN P ,  TERRY STEPHEN E ,  LIM JUNSUNG

Inventor： CHANDRA ARTY ,  MENON NARAYAN P ,  TERRY STEPHEN E ,  LIM JUNSUNG

IPC: H04L1/18

CPC classification number: H04L1/0026 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/1812 ,  H04L1/1841 ,  H04L1/1848 ,  H04L1/1877 ,  H04L1/188

Abstract: 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.

Abstract translation: 一种用于在无线通信系统中从发射机向接收机发送分组的方法开始于通过传输格式组合（TFC）选择过程构建分组，并且该分组从发射机发送到接收机。 如果发射机接收到在接收机处没有成功接收到分组的指示，则通过混合自动重传请求（HARQ）过程来重传该分组。 如果HARQ过程没有成功传送分组，则通过重传管理（RM）过程重传该分组。 如果RM程序没有成功传输数据包，则数据包将被发射机丢弃。

公开(公告)号：WO2005120091A3

公开(公告)日：2007-05-10

申请号：PCT/US2005019795

申请日：2005-06-06

Applicant: INTERDIGITAL TECH CORP ,  IACONO ANA LUCIA ,  CHANDRA ARTY ,  STEINBACH DANIEL P ,  CHA INHYOK ,  OTTO JAMES C ,  JOHNSON KEVIN P ,  GUTOWSKI STANLEY ,  LIU KAI ,  CUFFARO ANGELO ,  STERN-BERKOWITZ JANET

Inventor： IACONO ANA LUCIA ,  CHANDRA ARTY ,  STEINBACH DANIEL P ,  CHA INHYOK ,  OTTO JAMES C ,  JOHNSON KEVIN P ,  GUTOWSKI STANLEY ,  LIU KAI ,  CUFFARO ANGELO ,  STERN-BERKOWITZ JANET

IPC: H04M1/00 ,  H04B1/06 ,  H04B1/10 ,  H04B15/00 ,  H04W16/24

CPC classification number: H04W16/24 ,  H04B7/0695 ,  H04B7/088

Abstract: An access point (14) operates in an 802.11 wireless communication network (10) communicating with a client station (12), and includes a smart antenna (16) for generating directional antenna beams (20) and an omni-directional antenna beam (22). An antenna steering algorithm (18) scans the directional antenna beams and the omni-directional antenna beam for receiving signals from the client station (12). The signals received via each scanned antenna beam are measured, and on of the antenna beams is selected based upon the measuring for communicating with the client station (12). 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 (12). The usage rules are directed to an active state of the access point (14), which includes a data transmission mode and a data reception mode.

Abstract translation: 接入点（14）在与客户站（12）通信的802.11无线通信网络（10）中操作，并且包括用于产生定向天线波束（20）和全向天线波束（22）的智能天线（16） ）。 天线转向算法（18）扫描定向天线波束和全向天线波束，用于从客户站（12）接收信号。 测量经由每个扫描天线波束接收的信号，并且基于与客户站（12）进行通信的测量来选择天线波束的导通。 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，就有与用户台（12）交换数据的几种使用规则。 使用规则被引导到接入点（14）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：WO2006065921A3

公开(公告)日：2007-02-22

申请号：PCT/US2005045274

申请日：2005-12-14

Applicant: INTERDIGITAL TECH CORP ,  IACONO ANA LUCIA ,  CHANDRA ARTY ,  CHA INHYOK ,  CHEN JOHN S ,  LI YINGXUE ,  OTTO JAMES C

Inventor： IACONO ANA LUCIA ,  CHANDRA ARTY ,  CHA INHYOK ,  CHEN JOHN S ,  LI YINGXUE ,  OTTO JAMES C

IPC: H04W16/28 ,  H04W74/08

CPC classification number: H04B7/0608 ,  H04W16/28 ,  H04W72/046

Abstract: An apparatus and a method for improving packet transmission and reducing latency in VOIP over using switched beam antennas having multiple directional antenna beams are disclosed. In an access point (200) having a switched beam antenna (220A and 220B), or other smart antenna system, the present invention extends the coverage area of an access point for authentication and association of a new WTRU (205), extends the access points (200) coverage area during in session transmissions with a WTRU, and adjusts data rates. The method also controls Contention Period (Cpl/contention Free Period (CFP) timing amongst beams emanating from an access point (200) 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.

Abstract translation: 公开了一种用于改善分组传输并且通过使用具有多个定向天线波束的交换波束天线来减少VOIP中的等待时间的装置和方法。 在具有切换波束天线（220A和220B）或其他智能天线系统的接入点（200）中，本发明扩展了用于新的WTRU（205）的认证和关联的接入点的覆盖区域， （200）覆盖区域，并且调整数据速率。 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（200）发出的波束之间的竞争周期（Cpl /争用自由周期（CFP）定时）。快速分集切换，帧级切换，降低的数据速率， 并且公开了扫描用于最佳传输波束的多个定向天线波束以改善波束选择和分组传输。

公开(公告)号：WO2005077028A3

公开(公告)日：2006-09-21

申请号：PCT/US2005003956

申请日：2005-02-09

Applicant: INTERDIGITAL TECH CORP ,  CHANDRA ARTY ,  ZEIRA ELDAD

Inventor： CHANDRA ARTY ,  ZEIRA ELDAD

IPC: H04B1/38 ,  G08C17/00 ,  H04B1/16 ,  H04M1/00 ,  H04M1/73

CPC classification number: H04W52/0229 ,  Y02D70/00 ,  Y02D70/142

Abstract: 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.

Abstract translation: 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，并且当分组将被解码时 ，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：WO2006031499A3

公开(公告)日：2006-07-13

申请号：PCT/US2005031655

申请日：2005-09-07

Applicant: INTERDIGITAL TECH CORP ,  IACONO ANA LUCIA ,  CHANDRA ARTY ,  CHA INHYOK ,  MARINIER PAUL ,  ROY VINCENT

Inventor： IACONO ANA LUCIA ,  CHANDRA ARTY ,  CHA INHYOK ,  MARINIER PAUL ,  ROY VINCENT

IPC: H01Q3/26

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

Abstract: 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 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.

Abstract translation: 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通过从第一STA向第二STA发送测量请求开始。 从第二STA向第一STA发送至少两个测量分组。 每个测量分组在第一STA处使用不同的天线波束来接收。 第一STA对每个测量分组执行测量，并基于测量结果选择天线波束方向。