公开(公告)号：WO2009005878A3

公开(公告)日：2009-04-16

申请号：PCT/US2008061045

申请日：2008-04-21

Applicant: INTERDIGITAL TECH CORP ,  GOLDBERG STEVEN J ,  SHAH YOGENDRA C ,  REZNIK ALEXANDER

Inventor： GOLDBERG STEVEN J ,  SHAH YOGENDRA C ,  REZNIK ALEXANDER

IPC: H04L9/08

CPC classification number: H04L9/28 ,  H04L5/1469 ,  H04L9/0838 ,  H04L9/0875 ,  H04L25/0204 ,  H04L25/0224 ,  H04L2209/08 ,  H04L2209/80 ,  H04W12/04

Abstract: A method and apparatus for performing Joint Randomness Not Shared by Others (JRNSO) is disclosed. In one embodiment, JRNSO is determined in Frequency Division Duplex (FDD) using a baseband signal loop back and private pilots. In another embodiment, JRNSO is determined in Time Division Duplex (TDD) using a baseband signal loop back and combinations of private pilots, private gain functions and Kalman filtering directional processing. In one example, the FDD and TDD JRSNO embodiments are performed in Single-Input-Single-Output (SISO) and Single-Input-Multiple-Output (SIMO) communications. In other examples, the FDD and TDD embodiments are performed in Multiple-Input-Multiple-Output (MIMO) and Multiple-Input-Single-Output (MISO) communications. JRNSO is determined by reducing MIMO and MISO communications to SISO or SIMO communications. JRNSO is also determined using determinants of MIMO channel products. Channel restrictions are removed by exploiting symmetric properties of matrix products.

Abstract translation: 公开了一种用于执行由其他人不共享的联合随机性（JRNSO）的方法和装置。 在一个实施例中，使用基带信号环回和专用导频在频分双工（FDD）中确定JRNSO。 在另一个实施例中，使用基带信号环回以及专用导频的组合，专用增益函数和卡尔曼滤波定向处理，在时分双工（TDD）中确定JRNSO。 在一个示例中，FDD和TDD JRSNO实施例在单输入单输出（SISO）和单输入多输出（SIMO）通信中执行。 在其他示例中，FDD和TDD实施例在多输入多输出（MIMO）和多输入单输出（MISO）通信中执行。 通过减少与SISO或SIMO通信的MIMO和MISO通信来确定JRNSO。 JRNSO也使用MIMO信道产品的决定因素来决定。 通过利用矩阵产品的对称属性来消除通道限制。

公开(公告)号：WO2006101812A3

公开(公告)日：2009-04-16

申请号：PCT/US2006009004

申请日：2006-03-10

Applicant: INTERDIGITAL TECH CORP ,  REZNIK ALEXANDER ,  TU ZHENYU ,  ZHANG GUODONG

Inventor： REZNIK ALEXANDER ,  TU ZHENYU ,  ZHANG GUODONG

CPC classification number: H04W88/06 ,  H04W4/06 ,  H04W28/22 ,  H04W52/322 ,  H04W52/367

Abstract: A medium access control (MAC) entity first computes an achievable rate region based on a total transmit power limit and a channel gain of each of a plurality of WTRUs. Next, the MAC entity selects an order of DPC among the WTRUs. A rate set for use in transmitting to the WTRUs is then selected, said rate set being within the computed achievable rate region. Then, based on the selected DPC order and rate set, a DPC entity performs DPC on a plurality of data streams intended for the plurality of WTRUs. If nested lattice-based DPC is utilized, rate compatibility is achieved by selecting proper nesting ratios corresponding to a desired data rate set. Otherwise, if binary-code based DPC is utilized, rate compatibility is achieved via selecting appropriate message input sizes for input to point-to-point coding units prior to performing DPC.

Abstract translation: 媒体接入控制（MAC）实体首先基于多个WTRU中的每一个的总发射功率限制和信道增益来计算可实现速率区域。 接下来，MAC实体在WTRU中选择DPC的顺序。 然后选择用于向WTRU发送的速率集，所述速率集合在所计算的可实现速率区域内。 然后，基于所选择的DPC顺序和速率集合，DPC实体在为多个WTRU设置的多个数据流上执行DPC。 如果利用嵌套的基于网格的DPC，则通过选择对应于期望的数据速率集合的适当的嵌套比率来实现速率兼容性。 否则，如果使用基于二进制码的DPC，则在执行DPC之前通过选择适当的消息输入大小来输入到点对点编码单元来实现速率兼容性。

公开(公告)号：WO2006088685A3

公开(公告)日：2008-11-13

申请号：PCT/US2006004153

申请日：2006-02-07

Applicant: INTERDIGITAL TECH CORP ,  LI BIN ,  DIFAZIO ROBERT A ,  PAN KYLE JUNG-LIN ,  REZNIK ALEXANDER ,  KAEWELL JOHN DAVID JR ,  BECKER PETER EDWARD

Inventor： LI BIN ,  DIFAZIO ROBERT A ,  PAN KYLE JUNG-LIN ,  REZNIK ALEXANDER ,  KAEWELL JOHN DAVID JR ,  BECKER PETER EDWARD

IPC: H03H7/30 ,  H04B1/10 ,  H04L1/00 ,  H04L25/08

CPC classification number: H04L25/03159 ,  H04B17/336

Abstract: A receiver or an integrated circuit (IC) incorporated therein includes a fast Fourier transform (FFT)-based (or hybrid FFT-based) sliding window block level equalizer (BLE) for generating equalized samples. The BLE includes a noise power estimator, first and second channel estimators, an FFT-based chip level equalizer (CLEQ) and a channel monitor unit. The noise power estimator generates a noise power estimate based on two diverse sample data streams. The channel estimators generate respective channel estimates based on the sample data streams. The channel monitor unit generates a first channel monitor signal including truncated channel estimate vectors based on the channel estimates, and a second channel monitor signal which indicates an approximate rate of change of the truncated channel estimate vectors. The FFT-based CLEQ generates the equalized samples based on the noise power estimate, one-block samples of the first and second sample data streams, the channel estimates and the monitor signals.

Abstract translation: 结合在其中的接收器或集成电路（IC）包括用于产生均衡样本的基于快速傅立叶变换（FFT）（或基于混合FFT）的滑动窗口块级均衡器（BLE）。 BLE包括噪声功率估计器，第一和第二信道估计器，基于FFT的码片级均衡器（CLEQ）和信道监视器单元。 噪声功率估计器基于两个不同的采样数据流产生噪声功率估计。 信道估计器基于样本数据流生成相应的信道估计。 信道监视单元基于信道估计产生包括截断的信道估计向量的第一信道监视信号，以及指示截断的信道估计向量的近似变化率的第二信道监视信号。 基于FFT的CLEQ基于噪声功率估计，第一和第二采样数据流的一个块采样，信道估计和监视信号来生成均衡的采样。

公开(公告)号：WO2004077722A3

公开(公告)日：2006-06-08

申请号：PCT/US2004004658

申请日：2004-02-18

Applicant: INTERDIGITAL TECH CORP ,  REZNIK ALEXANDER ,  HEPLER EDWARD L

Inventor： REZNIK ALEXANDER ,  HEPLER EDWARD L

IPC: H04B1/707 ,  H04L1/00 ,  H04L1/18

CPC classification number: H04L1/1829 ,  H04B1/707 ,  H04L1/0006 ,  H04L1/0025 ,  H04L1/0032 ,  H04L1/0071

Abstract: Components and method are provided to efficiently process wireless communications data where prior knowledge of the specific format of the communication data is unavailable. A wireless transmit receive unit (WTRU) is configured for use in a wireless communication system where communication data for selected channels is transmitted in system time frames. The WTRU has a receiver, a received chip rate processor (RCRP) to despread each wireless signal of spread data received in each time frame using a minimum spreading code or other appropriate key sequence, a memory storing despread data for each time frame, a format detector to determine the number of physical channels and respective spreading factor for each physical channel for the wireless signal of spread data received in each time frame, and a de-interleaver for de-interleaving stored data despread by the RCPR for each time frame into the number of physical channels determined by the format detector.

Abstract translation: 提供组件和方法以有效地处理无线通信数据，其中通信数据的特定格式的先前知识不可用。 无线发射接收单元（WTRU）被配置为在无线通信系统中使用，其中所选择的信道的通信数据以系统时间帧传输。 WTRU具有接收机，接收到的码片速率处理器（RCRP），以使用最小扩展码或其他适当的密钥序列来解扩每个时间帧中接收的扩展数据的每个无线信号，存储每个时间帧的解扩数据的存储器，格式 检测器，以确定用于每个时间帧中接收的扩展数据的无线信号的每个物理信道的物理信道数量和相应的扩展因子，以及解交织器，用于将由每个时间帧被RCPR解扩的存储数据解交织成 由格式检测器确定的物理通道数。

公开(公告)号：WO2005053206A3

公开(公告)日：2006-03-23

申请号：PCT/US2004038611

申请日：2004-11-19

Applicant: INTERDIGITAL TECH CORP ,  OLESEN ROBERT LIND ,  REZNIK ALEXANDER ,  PIETRASKI PHILIP J ,  YANG RUI

Inventor： OLESEN ROBERT LIND ,  REZNIK ALEXANDER ,  PIETRASKI PHILIP J ,  YANG RUI

IPC: H04L20060101 ,  H04L1/02 ,  H04L27/26

CPC classification number: H04L27/2647 ,  H04B7/0845 ,  H04B7/086

Abstract: A wireless communication apparatus (200) which uses fast Fourier transforms (FFTs) in an orthogonal frequency division multiplexing (OFDM) receiver (250) which incorporates a beam space antenna array (205). The beam space antenna array may be implemented with a Butler matrix array. The beam space antenna array may be a circular array, vertical array, or a combination of both circular and vertical arrays, for providing the desired angular antenna coverage. In one embodiment, the antenna array is optimized because the FFTs are linear invariant transform operators (210), whereby the order of operations in the OFDM receiver can be interchanged.

Abstract translation: 一种在包含波束空间天线阵列（205）的正交频分复用（OFDM）接收机（250）中使用快速傅里叶变换（FFT）的无线通信装置（200）。 波束空间天线阵列可以用Butler矩阵阵列来实现。 波束空间天线阵列可以是圆形阵列，垂直阵列或圆形阵列和垂直阵列的组合，用于提供所需的角度天线覆盖。 在一个实施例中，天线阵列被优化，因为FFT是线性不变变换运算符（210），由此OFDM接收机中的操作顺序可以互换。

公开(公告)号：WO2005053209A2

公开(公告)日：2005-06-09

申请号：PCT/US2004039594

申请日：2004-11-24

Applicant: INTERDIGITAL TECH CORP ,  CHITRAPU PRABHAKAR R ,  BRIANCON ALAIN CHARLES LOUIS ,  KUMOLUYI AKIN O ,  CARLTON ALAN GERALD ,  VANGANURU KIRAN KUMAR S ,  HERSCHAFT RICHARD DAN ,  HOFFMANN JOHN ERICH ,  THOMMANA JOHN ,  ZHANG GUODONG ,  OLESEN ROBERT LIND ,  REZNIK ALEXANDER ,  SHAN TIEJUN ,  SHIN SUNG-HYUK ,  SINGHAL AMIT ,  PURKAYASTHA DEBASHISH

Inventor： CHITRAPU PRABHAKAR R ,  BRIANCON ALAIN CHARLES LOUIS ,  KUMOLUYI AKIN O ,  CARLTON ALAN GERALD ,  VANGANURU KIRAN KUMAR S ,  HERSCHAFT RICHARD DAN ,  HOFFMANN JOHN ERICH ,  THOMMANA JOHN ,  ZHANG GUODONG ,  OLESEN ROBERT LIND ,  REZNIK ALEXANDER ,  SHAN TIEJUN ,  SHIN SUNG-HYUK ,  SINGHAL AMIT ,  PURKAYASTHA DEBASHISH

IPC: G06T1/00 ,  H04L9/00 ,  H04L9/08 ,  H04L9/32 ,  H04L12/56 ,  H04W12/02 ,  H04W88/02 ,  H04L

CPC classification number: H04W12/04 ,  H04L9/3234 ,  H04L9/3247 ,  H04L2463/061 ,  H04L2463/103 ,  H04W12/02 ,  H04W12/10 ,  H04W88/02

Abstract: Tokens/keys are produced for wireless communications. These tokens/keys are used for watermarks, signature insertion, encryption and other uses. In one embodiment, contextual information is used to generate tokens/keys. The tokens/keys may be derived directly from the contextual information. The contextual information may be used in conjunction with other information to derive the tokens/keys. Tokens/keys may be exchanged between transmit/receive units. The exchange of these tokens/keys may be encrypted.

Abstract translation: 产生用于无线通信的令牌/密钥。 这些令牌/密钥用于水印，签名插入，加密和其他用途。 在一个实施例中，使用上下文信息来生成令牌/密钥。 令牌/密钥可以直接从上下文信息导出。 上下文信息可以与其他信息一起使用以导出令牌/密钥。 令牌/密钥可以在发送/接收单元之间交换。 这些令牌/密钥的交换可以被加密。

公开(公告)号：WO2005004338A2

公开(公告)日：2005-01-13

申请号：PCT/US2004020427

申请日：2004-06-24

Applicant: INTERDIGITAL TECH CORP ,  REZNIK ALEXANDER ,  YANG RUI ,  LI BIN ,  ZEIRA ARIELA

Inventor： REZNIK ALEXANDER ,  YANG RUI ,  LI BIN ,  ZEIRA ARIELA

IPC: H03D1/04 ,  H04B20060101 ,  H04B1/707 ,  H04L25/03 ,  H04B

CPC classification number: H04L25/03305 ,  H04B1/71055 ,  H04L25/03331 ,  H04L25/03993

Abstract: The present invention has many aspects. One aspect of the invention is to perform equalization using a sliding window approach. A second aspect reuses information derived for each window for use by a subsequent window. A third aspect utilizes a discrete Fourier transform based approach for the equalization. A fourth aspect relates to handling oversampling of the received signals and channel responses. A fifth aspect relates to handling multiple reception antennas. A sixth embodiment relates to handling both oversampling and multiple reception antennas.

Abstract translation: 本发明具有许多方面。 本发明的一个方面是使用滑动窗口方法进行均衡。 第二个方面重用为每个窗口导出的信息，供后续窗口使用。 第三方面利用基于离散傅立叶变换的均衡方法。 第四方面涉及处理接收信号和信道响应的过采样。 第五方面涉及处理多个接收天线。 第六实施例涉及处理过采样和多个接收天线。

公开(公告)号：WO0158041A9

公开(公告)日：2002-10-31

申请号：PCT/US0103380

申请日：2001-02-02

Applicant: INTERDIGITAL TECH CORP

Inventor： ZEIRA ARIELA ,  ZEIRA ELDAD ,  REZNIK ALEXANDER ,  TERRY STEPHEN E

IPC: H04B1/707 ,  H04B1/7073 ,  H04B1/7093 ,  H04B1/7103 ,  H04B1/7105 ,  H04B7/00 ,  H04J3/00 ,  H04J11/00 ,  H04J13/00 ,  H04J13/16 ,  H04Q7/38

CPC classification number: H04B1/7103 ,  H04B1/707 ,  H04B1/70735 ,  H04B1/7105 ,  H04B2001/70935 ,  H04B2201/70701 ,  H04B2201/70709 ,  H04J13/00 ,  H04J13/16

Abstract: A wireless time division duplex communication system using code division multiple access has a base station and user equipments. The system communicates using communication bursts. Each communication burst has a unique channelization code and a midamble code. Each midamble code is mapped to a set of at least one channelization code. For each communication burst to be transmitted in a time slot from the base station, the midamble code mapped to that burst's channelization code is determined. Communication bursts are generated and transmitted in the time slot. Each burst has the determined midamble code for its channelization code. The user equipment receives the bursts and determines each received midamble code. The user equipment determines the channelization codes of the transmitted communication bursts based on in part a result of the determining of each received midamble code.

Abstract translation: 使用码分多址的无线时分双工通信系统具有基站和用户设备。 系统使用通信突发进行通信。 每个通信突发具有唯一的信道化码和中间码。 每个中间码代码被映射到一组至少一个信道化码。 对于要在基站的时隙中发送的每个通信突发，确定映射到该突发的信道化码的中间码。 在时隙中生成和发送通信突发。 每个突发具有确定的其信道化码的中间码代码。 用户设备接收突发并确定每个接收到的中间码。 用户设备部分地基于确定每个接收到的中间码的结果来确定所发送的通信脉冲串的信道化码。

公开(公告)号：WO2008045471A3

公开(公告)日：2008-08-07

申请号：PCT/US2007021642

申请日：2007-10-10

Applicant: INTERDIGITAL TECH CORP ,  REZNIK ALEXANDER ,  ZEIRA ELDAD M ,  CAVE CHRISTOPHER R ,  MARINIER PAUL

Inventor： REZNIK ALEXANDER ,  ZEIRA ELDAD M ,  CAVE CHRISTOPHER R ,  MARINIER PAUL

IPC: H04L12/56 ,  H04W4/06 ,  H04W28/04 ,  H04W52/14 ,  H04W52/22 ,  H04W52/24 ,  H04W52/32

CPC classification number: H04W72/0453 ,  H04L1/0025 ,  H04L1/0073 ,  H04L1/1671 ,  H04L1/1887 ,  H04W4/06 ,  H04W52/146 ,  H04W52/228 ,  H04W52/247 ,  H04W52/325

Abstract: A wireless transmit/receive units (WTRUs) receives a downlink transmission from a Node-B and decodes the downlink transmission. If the decoding is not successful, the WTRU sends a pre-defined burst signifying a negative acknowledgement (NACK) to the Node-B via a contention-based shared feedback channel. The pre-defined burst may be sent only once without requiring an acknowledgement. The Node-B calibrates a downlink transmit power so that the downlink transmission is transmitted to the WTRUs with a high likelihood. The Node-B may send a downlink transmission including multiple data streams processed using different modulation and coding schemes so that a WTRU having a high signal quality decodes all data streams while a WTRU having a low signal quality decodes less than all data streams. The Node-B sends a channel quality indicator (CQI) threshold so that each WTRU determines a data stream to report feedback based on the CQI threshold and a measured CQI.

Abstract translation: 无线发射/接收单元（WTRU）从节点B接收下行链路传输并解码下行链路传输。 如果解码不成功，则WTRU经由基于争用的共享反馈信道向节点B发送表示否定确认（NACK）的预定义突发。 预定义的突发可以只发送一次而不需要确认。 节点B校准下行链路发射功率，使得下行链路传输以高可能性被发射到WTRU。 节点B可以发送包括使用不同调制和编码方案处理的多个数据流的下行链路传输，使得具有高信号质量的WTRU解码所有数据流，而具有低信号质量的WTRU解码少于所有数据流。 节点B发送信道质量指示符（CQI）阈值，使得每个WTRU基于CQI阈值和测量的CQI来确定数据流以报告反馈。

公开(公告)号：WO2008085992A2

公开(公告)日：2008-07-17

申请号：PCT/US2008000294

申请日：2008-01-08

Applicant: INTERDIGITAL TECH CORP ,  YE CHUNXUAN ,  REZNIK ALEXANDER ,  SHAH YOGENDRA C ,  PIETRASKI PHILIP J ,  DIFAZIO ROBERT A

Inventor： YE CHUNXUAN ,  REZNIK ALEXANDER ,  SHAH YOGENDRA C ,  PIETRASKI PHILIP J ,  DIFAZIO ROBERT A

CPC classification number: H04L1/1628 ,  H04L1/1819 ,  H04L1/1845 ,  H04L1/1874 ,  H04L12/1868 ,  H04L47/10 ,  H04L47/14 ,  H04L47/15 ,  H04L2001/0093

Abstract: A method for multicasting a packet begins by providing a buffer for each of two user equipments (UEs) in communication with a base station. A determination is made whether there is a previously unsent packet at the base station. A second determination is made whether both UE buffers are non-empty. A non-empty buffer is flushed if there is no previously unsent packet and if one of the buffers is non-empty. A packet is selected to be transmitted if there is a previously unsent packet or if both buffers are non-empty. The buffers are updated based on feedback received from the UEs.

Abstract translation: 通过为与基站通信的两个用户设备（UE）中的每一个提供缓冲器，开始组播分组的方法。 确定在基站处是否存在先前未发送的分组。 第二确定是否两个UE缓冲器都是非空的。 如果没有先前未发送的数据包，并且其中一个缓冲区不为空，则将刷新非空缓冲区。 如果存在先前未发送的分组或者两个缓冲区都不为空，则选择发送分组。 基于从UE接收的反馈来更新缓冲器。