公开(公告)号：WO2006081091A3

公开(公告)日：2007-10-25

申请号：PCT/US2006001533

申请日：2006-01-17

Applicant: INTERDIGITAL TECH CORP ,  CHANDRA ARTY ,  GRANDHI SUDHEER A ,  ZEIRA ELDAD ,  LEVY JOSEPH S ,  DEHNIE SINTAYEHU ,  SAMMOUR MOHAMMED

Inventor： CHANDRA ARTY ,  GRANDHI SUDHEER A ,  ZEIRA ELDAD ,  LEVY JOSEPH S ,  DEHNIE SINTAYEHU ,  SAMMOUR MOHAMMED

IPC: H04W74/08

CPC classification number: H04W74/08 ,  H04L47/26 ,  H04L47/30 ,  H04W74/002 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/22

Abstract: A method and system for eliminating interference caused by hidden nodes is disclosed. An initiator control message is defined for an initiator, (typically a wireless station (STA)), in order to begin an aggregate frame exchange with at least one responder. The initiator control message includes information on the queue sizes at the initiator. A responder, (typically an access point (AP)), sets up the required protection for the transmission of data by the initiator based on information on the queue sizes indicated in a field of the initiator control message using a responder control message. Other STAs that receive the responder control message set parameters for a wireless medium access accordingly. In another embodiment, multiple receiver aggregate multi-poll (MMP) and power save aggregation descriptor (PSAD) control frames are configured for transmission by a non-AP STA to provide enhanced scheduling and mitigate hidden node problems.

Abstract translation: 公开了一种消除隐藏节点干扰的方法和系统。 为启动器（通常为无线站（STA））定义发起者控制消息，以开始与至少一个响应者的聚合帧交换。 启动器控制消息包括关于发起者的队列大小的信息。 响应者（通常为接入点（AP）），基于使用响应者控制消息的发起者控制消息的字段中指示的队列大小的信息来设置由发起者发送数据所需的保护。 接收响应者控制消息的其他STA相应地为无线介质访问参数。 在另一个实施例中，多个接收机集合多轮询（MMP）和功率节省聚合描述符（PSAD）控制帧被配置为由非AP STA传输，以提供增强的调度并减轻隐藏的节点问题。

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：WO02093757A2

公开(公告)日：2002-11-21

申请号：PCT/US0215242

申请日：2002-05-14

Applicant: INTERDIGITAL TECH CORP

Inventor： TERRY STEPHEN E ,  DICK STEPHEN G ,  MILLER JAMES M ,  ZEIRA ELDAD ,  ZEIRA ARIELA

IPC: H04B7/005 ,  H04B7/26 ,  H04L1/00 ,  H04L1/20 ,  H04L12/56 ,  H04W16/14 ,  H04W24/00 ,  H04W52/00 ,  H04W52/24 ,  H04W72/04 ,  H04W72/08 ,  H04B

CPC classification number: H04W72/085 ,  H04B7/0632 ,  H04B17/327 ,  H04B17/382 ,  H04L1/0001 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/0028 ,  H04L1/20 ,  H04W24/10 ,  H04W52/24 ,  H04W72/0413

Abstract: In a wireless digital communication system which may employ CDMA technology, a method (50) and system for obtaining channel quality (CQ) measurements for downlink resource allocation wherein a User Equipment (UE) (12) continuously measures RSCP (step) based on a communication on a reference channel provided by the network. The UE (12) measures timeslot ISCP (step 56) either continuously, by configuration or by rotation and reports downlink CQ (step 58). The UE (12) may report the RSCP once and the ISCP per timeslot, or may report some function of the RSCP/ISCP ratio such as modulation parameters or combined coding of all timeslots.

Abstract translation: 在可以采用CDMA技术的无线数字通信系统中，一种用于获得用于下行链路资源分配的信道质量（CQ）测量的方法（50）和系统，其中用户设备（UE）（12）基于 在网络提供的参考信道上进行通信。 UE（12）通过配置或轮播连续地测量时隙ISCP（步骤56）并报告下行链路CQ（步骤58）。 UE（12）可以每时隙报告RSCP一次和ISCP，或者可以报告RSCP / ISCP比率的一些功能，例如调制参数或所有时隙的组合编码。

公开(公告)号：WO2008042255A3

公开(公告)日：2008-10-02

申请号：PCT/US2007020924

申请日：2007-09-28

Applicant: INTERDIGITAL TECH CORP ,  ZEIRA ELDAD ,  REZNIK ALEXANDER ,  YANG RUI ,  PIETRASKI PHILIP J ,  YANG YONGWEN

Inventor： ZEIRA ELDAD ,  REZNIK ALEXANDER ,  YANG RUI ,  PIETRASKI PHILIP J ,  YANG YONGWEN

IPC: H04L1/00

CPC classification number: H04B7/0456 ,  G06F11/006 ,  H04B7/0417 ,  H04B7/0632 ,  H04B7/0634 ,  H04B7/0636 ,  H04B7/0639 ,  H04B7/0652 ,  H04L1/0026 ,  H04L1/0057 ,  H04L1/007 ,  H04L1/0073 ,  H04L1/06 ,  H04L1/1671 ,  H04L65/601 ,  H04L69/40 ,  H04L2025/03802 ,  H04L2209/34

Abstract: A method and apparatus for encoding channel quality indicator (CQI) and precoding control information (PCI) bits are disclosed. Each of input bits, such as CQI bits and/or PCI bits, has a particular significance. The input bits are encoded with a linear block coding. The input bits are provided with an unequal error protection based on the significance of each input bit. The input bits may be duplicated based on the significance of each input bit and equal protection coding may be performed. A generator matrix for the encoding may be generated by elementary operation of conventional basis sequences to provide more protection to a most significant bit (MSB).

Abstract translation: 公开了用于编码信道质量指示符（CQI）和预编码控制信息（PCI）比特的方法和装置。 诸如CQI比特和/或PCI比特之类的每个输入比特具有特别的意义。 输入位用线性块编码进行编码。 基于每个输入位的重要性，输入位提供不等错误保护。 可以基于每个输入比特的重要性来复制输入比特，并且可以执行相等的保护编码。 可以通过传统基本序列的基本操作来产生用于编码的生成器矩阵，以向最高有效位（MSB）提供更多的保护。

公开(公告)号：WO2007103183A3

公开(公告)日：2007-11-15

申请号：PCT/US2007005374

申请日：2007-02-28

Applicant: INTERDIGITAL TECH CORP ,  KOO CHANG-SOO ,  ZEIRA ELDAD ,  LU I-TAI ,  OLESEN ROBERT LIND ,  TSAI KUNJU

Inventor： KOO CHANG-SOO ,  ZEIRA ELDAD ,  LU I-TAI ,  OLESEN ROBERT LIND ,  TSAI KUNJU

IPC: H04L25/02

CPC classification number: H04L25/0216 ,  H04L25/0208 ,  H04L25/0212 ,  H04L25/0214 ,  H04L25/022 ,  H04L25/0232 ,  H04L27/2647

Abstract: In an orthogonal frequency division multiplexing (OFDM) system, a frequency domain channel estimate for non-nullified subcarriers is converted to a time domain channel estimate. The number of taps L of a channel model is determined based on the time domain channel estimate. An improved time domain channel estimate is obtained by computing L tap coefficients of the channel model from the frequency domain channel estimate. An improved frequency domain channel estimate is obtained by performing a Fourier transform on the improved time domain channel estimate. Alternatively, a time domain truncation method may be performed selectively only if the signal-to-noise ratio (SNR) is below a threshold. Alternatively, a frequency domain channel estimate for pilot subcarriers are converted to a time domain channel estimate and an improved frequency domain channel estimate is obtained based on the number of pilot subcarriers and a delay spread.

Abstract translation: 在正交频分复用（OFDM）系统中，用于非无效副载波的频域信道估计被转换为时域信道估计。 基于时域信道估计来确定信道模型的抽头数量L. 通过根据频域信道估计来计算信道模型的L个抽头系数来获得改进的时域信道估计。 通过对改进的时域信道估计执行傅里叶变换来获得改进的频域信道估计。 或者，只有当信噪比（SNR）低于阈值时才可以选择性地执行时域截断方法。 或者，导频子载波的频域信道估计被转换为时域信道估计，并且基于导频子载波的数量和延迟扩展来获得改进的频域信道估计。

公开(公告)号：WO2006107886A2

公开(公告)日：2006-10-12

申请号：PCT/US2006012335

申请日：2006-03-31

Applicant: INTERDIGITAL TECH CORP ,  CHANDRA ARTY ,  ZEIRA ELDAD ,  SAMMOUR MOHAMMED ,  GRANDHI SUDHEER A

Inventor： CHANDRA ARTY ,  ZEIRA ELDAD ,  SAMMOUR MOHAMMED ,  GRANDHI SUDHEER A

IPC: H04L1/18

CPC classification number: H04W28/0268 ,  H04L1/1664 ,  H04L1/1671 ,  H04L1/1685 ,  H04L25/0204 ,  H04L25/0226 ,  H04L25/03343 ,  H04L49/65 ,  H04L2025/03426 ,  H04L2025/03802 ,  H04W24/08 ,  H04W84/12

Abstract: The method involves sending a request frame to a responder by an initiator, and sending a response frame to the initiator without sending a separate acknowledgement (ACK) frame for acknowledging receipt of the request frame. The response frame is sent by the responder within a short inter-frame spacing (SIFS) from time that the responder receives the request frame, where the responder has a request identity number in the response frame. An independent claim is also included for a wireless communication system comprising an initiator.

Abstract translation: 该方法包括由发起者向请求者发送请求帧，并且向发起者发送响应帧，而​​不发送用于确认接收请求帧的单独的确认（ACK）帧。 应答器在响应者接收到请求帧的时间内在短帧间距（SIFS）内由响应者发送响应帧，响应者在响应帧中具有请求标识号。 还包括用于包括发起者的无线通信系统的独立权利要求。

公开(公告)号：WO2005034406A2

公开(公告)日：2005-04-14

申请号：PCT/US2004029146

申请日：2004-09-08

Applicant: INTERDIGITAL TECH CORP ,  ZEIRA ELDAD ,  GRIECO DONALD M ,  OLESEN ROBERT L ,  ZEIRA ARIELA ,  PAN JUNG-LIN ,  BULTAN AYKUT

Inventor： ZEIRA ELDAD ,  GRIECO DONALD M ,  OLESEN ROBERT L ,  ZEIRA ARIELA ,  PAN JUNG-LIN ,  BULTAN AYKUT

IPC: H01Q1/24 ,  H01Q3/26 ,  H01Q25/00 ,  H04B1/02 ,  H04B1/38 ,  H04B7/02 ,  H04B7/08 ,  H04B15/00 ,  H04B17/00 ,  H04L20060101 ,  H04M1/00 ,  H04M7/14 ,  H04Q7/20 ,  H04L

CPC classification number: H01Q1/246 ,  H01Q3/2605 ,  H01Q25/00 ,  H04B7/088

Abstract: A method and system is disclosed for enhancing reception of wireless communication signals. A beam pattern including at least one set of beams is generated. Where the beam pattern includes at least two sets of beams, the beam sets may be offset with respect to each other and alternated to enhance reception. Beams may be selected for data processing based on a signal-to-noise ratio (SNR) and may be maximal-ratio combined where signals from a single WTRU are detected within more than one beam and are used for data processing.

Abstract translation: 公开了一种用于增强无线通信信号的接收的方法和系统。 产生包括至少一组光束的光束图案。 在波束图案包括至少两组波束的情况下，波束组可以相对于彼此偏移并交替以增强接收。 可以基于信噪比（SNR）来选择光束进行数据处理，并且可以在多个波束内检测来自单个WTRU的信号并将其用于数据处理的情况下进行最大比组合。

公开(公告)号：WO2004072829A3

公开(公告)日：2004-09-30

申请号：PCT/US2004004439

申请日：2004-02-11

Applicant: INTERDIGITAL TECH CORP ,  ZEIRA ELDAD ,  ZHANG GUODONG ,  TERRY STEPHEN E ,  MILLER JAMES M

Inventor： ZEIRA ELDAD ,  ZHANG GUODONG ,  TERRY STEPHEN E ,  MILLER JAMES M

IPC: H04L1/00 ,  H04W28/10 ,  H04W28/22 ,  H04B1/38 ,  H04M1/00

CPC classification number: H04W28/0236 ,  H04L1/0002 ,  H04L1/0015 ,  H04L1/0026 ,  H04L1/203 ,  H04L47/22 ,  H04W24/02 ,  H04W28/10 ,  H04W28/22 ,  H04W36/0011

Abstract: A wireless communication method and system for controlling the current data bit rate of a radio link (RL) to maintain the quality of the RL. The system includes a core network (CN), a radio network controller (RNC) and at least one wireless transmit/receive unit (WTRU). The RL is established between the RNC and the WTRU. The RNC establishes a guaranteed data bit rate, a maximum data bit rate and a current data bit rate associated with the RL. When the RNC senses an event which indicates that the quality of the RL has substantially deteriorated, the RNC reduces the value of the current data bit rate. Then, in a recovery process, if a similar event does not occur during an established waiting period, the RNC restores the current data bit rate back to the maximum data bit rate.

Abstract translation: 一种用于控制无线电链路（RL）的当前数据比特率以保持RL的质量的无线通信方法和系统。 该系统包括核心网络（CN），无线电网络控制器（RNC）和至少一个无线发射/接收单元（WTRU）。 在RNC和WTRU之间建立RL。 RNC建立与RL相关联的保证数据比特率，最大数据比特率和当前数据比特率。 当RNC感测到指示RL的质量已经显着恶化的事件时，RNC减小当前数据比特率的值。 然后，在恢复处理中，如果在建立的等待期间没有发生类似的事件，则RNC将当前数据比特率恢复到最大数据比特率。

公开(公告)号：WO2006110737A3

公开(公告)日：2007-08-23

申请号：PCT/US2006013464

申请日：2006-04-07

Applicant: INTERDIGITAL TECH CORP ,  CHA INHYOK ,  ZEIRA ELDAD ,  BALDWIN KEITH RICHARD

Inventor： CHA INHYOK ,  ZEIRA ELDAD ,  BALDWIN KEITH RICHARD

IPC: H04Q7/00 ,  H04B1/00

CPC classification number: H04B7/0413 ,  H04B7/0695 ,  H04B7/088

Abstract: A method and apparatus for selecting an antenna mapping in multiple-in/multiple-out (MIMO) enabled wireless communication networks. A candidate set of currently available antenna mappings is determined based upon measured long term channel conditions. An antenna mapping is selected from the candidate set, and the mapping is calibrated with a selected antenna mapping of a receiving wireless transmit/receive unit (WTRU). When the selected mappings are calibrated, packet data transmission begins. In an alternative embodiment, a calibration training frame (CTF) is used to calibrate multiple antenna mappings simultaneously or sequentially. Also disclosed are physical layer and medium access control layer frame formats for implementing antenna mapping selection according to the invention.

Abstract translation: 一种用于在启用多输入多输出（MIMO）的无线通信网络中选择天线映射的方法和装置。 基于测量的长期信道条件来确定当前可用天线映射的候选集合。 从候选集中选择天线映射，并且利用接收无线发射/接收单元（WTRU）的选定的天线映射校准映射。 当所选择的映射被校准时，分组数据传输开始。 在替代实施例中，校准训练帧（CTF）用于同时或顺序地校准多个天线映射。 还公开了根据本发明的用于实现天线映射选择的物理层和媒体访问控制层帧格式。

公开(公告)号：WO2006041673A3

公开(公告)日：2007-01-25

申请号：PCT/US2005034518

申请日：2005-09-27

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

Inventor： GRANDHI SUDHEER A ,  LEVY JOSEPH S ,  TERRY STEPHEN E ,  ZEIRA ELDAD

IPC: H04L12/28

CPC classification number: H04L12/46 ,  H04W28/065 ,  H04W52/0216 ,  H04W74/08 ,  Y02D70/00 ,  Y02D70/142

Abstract: An aggregated medium access control (MAC) frame (300-Fig.3) for use with multiple transmission rates in a wireless communication system includes an aggregated header; at least one MAC protocol data unit (MPDU), the MPDUs being grouped together in the fram by transmission rate of the MPDU; and a separating sequence between each rate group. The aggregated header (302) includes a coun field (312) to indicate a number of rates that have been aggregated in the frame and an information group (326) for each rate that has been aggregated in the frame.

Abstract translation: 在无线通信系统中与多个传输速率一起使用的聚合介质访问控制（MAC）帧（300-图3）包括聚合报头; 至少一个MAC协议数据单元（MPDU），MPDU通过MPDU的传输速率被组合在帧中; 和每个速率组之间的分离序列。 聚合报头（302）包括用于指示已经在帧中聚合的速率的数量的域（312）和针对已在帧中聚合的每个速率的信息组（326）。