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    MULTIUSER DETECTOR FOR VARIABLE SPREADING FACTORS
    41.
    发明申请
    MULTIUSER DETECTOR FOR VARIABLE SPREADING FACTORS 审中-公开
    多变量检测器可变扩展因子

    公开(公告)号：WO2001022610A1

    公开(公告)日：2001-03-29

    申请号：PCT/US2000/002621

    申请日：2000-02-02

    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  REZNIK, Alexander ,  LUBECKI, Timothy, J. ,  ZEIRA, Ariela

    Inventor： REZNIK, Alexander ,  LUBECKI, Timothy, J. ,  ZEIRA, Ariela

    IPC: H04B1/707

    CPC classification number: H04B1/7105 ,  H04B1/7093 ,  H04B1/71052 ,  H04B2201/70703 ,  H04B2201/70705

    Abstract: A multiuser detector that detects and decodes synchronous or asynchronous CDMA subchannels having different spreading factors with reduced computational complexity. The multiuser detector is compatible with ZF-BLE, MMSE, decorrelating detectors and the like using Cholesky decomposition to minimize numeric operations. The system and method arranges the columns of system transmission response matrices representing the response characteristics of individual users into a total system transmission response matrix which represents a plurality of matched-filter responses for a given block of received data. The invention in conjunction with Cholesky decomposition reduces the number of required mathematic operations prior to parallel matched filtering.

    Abstract translation: 一种多用户检测器，其检测并解码具有不同扩频因子的同步或异步CDMA子信道，降低了计算复杂度。 多用户检测器与使用Cholesky分解的ZF-BLE，MMSE，去相关检测器等兼容，以最小化数字运算。 系统和方法将表示各个用户的响应特性的系统传输响应矩阵的列排列成表示针对给定的接收数据块的多个匹配滤波器响应的总系统传输响应矩阵。 本发明结合Cholesky分解在并行匹配滤波之前减少了所需数学运算的数量。

    GROUP-WISE SECRET KEY GENERATION
    42.
    发明申请
    GROUP-WISE SECRET KEY GENERATION 审中-公开
    集团秘密密钥生成

    公开(公告)号：WO2008105836A2

    公开(公告)日：2008-09-04

    申请号：PCT/US2007/020465

    申请日：2007-09-21

    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  YE, Chunxuan ,  REZNIK, Alexander

    Inventor： YE, Chunxuan ,  REZNIK, Alexander

    IPC: H04L9/08

    CPC classification number: H04L9/0836 ,  H04K1/00 ,  H04L2209/80 ,  H04W12/04

    Abstract: The present invention relates to a method for constructing a perfectly secret key within a group of nodes. In a group of m nodes, pair-wise secret keys are assigned. Based on pair-wise secret keys, these m nodes generate a group- wise perfectly secret key. In a preferred embodiment, each node communicates with every other node through public noiseless broadcasts.

    Abstract translation: 本发明涉及一种用于在一组节点内构建完美秘密密钥的方法。 在一组m个节点中，分配了成对的秘密密钥。 基于成对的秘密密钥，这些m个节点产生一个分组完美的秘密密钥。 在优选实施例中，每个节点通过公共无噪声广播与每个其他节点进行通信。

    PAGING OVER A HIGH-SPEED DOWNLINK SHARED CHANNEL
    43.
    发明申请
    PAGING OVER A HIGH-SPEED DOWNLINK SHARED CHANNEL 审中-公开
    通过高速下行链路共享信道进行寻呼

    公开(公告)号：WO2008097593A2

    公开(公告)日：2008-08-14

    申请号：PCT/US2008/001595

    申请日：2008-02-05

    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  CAVE, Christopher R. ,  DIGIROLAMO, Rocco ,  PANI, Diana ,  REZNIK, Alexander

    Inventor： CAVE, Christopher R. ,  DIGIROLAMO, Rocco ,  PANI, Diana ,  REZNIK, Alexander

    IPC: H04W52/02 ,  H04W68/02

    CPC classification number: H04W68/025 ,  H04W52/0209 ,  H04W52/0216 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/24

    Abstract: An apparatus and methods are provided for paging in a HSDPA connected mode CELL_PCH or URA_PCH state. Preferably, a WTRU is configured to select various PICH information that is broadcast by a base station. The WTRU is preferably configured to receive paging messages, based on the selected PICH information. In one embodiment, a preferred WTRU is configured to receive paging messages, based on a PICH, a HS-SCCH, and a HS-PDSCH. In another embodiment, a preferred WTRU is configured to receive paging messages, based on a PICH and a HS-PDSCH. In both embodiments, a time delay parameter is preferably used so that the WTRU may listen for either the HS-SCCH or HS-PDSCH for a period of time and return to a sleep mode if no paging message is received.

    Abstract translation: 提供了一种用于以HSDPA连接模式CELL_PCH或URA_PCH状态进行寻呼的装置和方法。 优选地，WTRU被配置为选择由基站广播的各种PICH信息。 WTRU优选地被配置为基于所选择的PICH信息来接收寻呼消息。 在一个实施例中，优选WTRU被配置为基于PICH，HS-SCCH和HS-PDSCH接收寻呼消息。 在另一个实施例中，优选的WTRU被配置为基于PICH和HS-PDSCH接收寻呼消息。 在两个实施例中，优选地使用时间延迟参数，使得WTRU可以在一段时间内监听HS-SCCH或HS-PDSCH，并且如果没有接收到寻呼消息则返回睡眠模式。

    METHOD AND APPARATUS FOR SENDING FEEDBACK FOR A DOWNLINK SHARED SERVICE TRANSMITTED TO A PLURALITY OF WIRELESS TRANSMIT/RECEIVE UNITS
    45.
    发明申请
    METHOD AND APPARATUS FOR SENDING FEEDBACK FOR A DOWNLINK SHARED SERVICE TRANSMITTED TO A PLURALITY OF WIRELESS TRANSMIT/RECEIVE UNITS 审中-公开
    用于发送多个无线传输/接收单元的下行链路共享服务的反馈的方法和装置

    公开(公告)号：WO2008045471A2

    公开(公告)日：2008-04-17

    申请号：PCT/US2007/021642

    申请日：2007-10-10

    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  REZNIK, Alexander ,  ZEIRA, Eldad, M. ,  CAVE, Christopher, R. ,  MARINIER, Paul

    Inventor： REZNIK, Alexander ,  ZEIRA, Eldad, M. ,  CAVE, Christopher, R. ,  MARINIER, Paul

    IPC: H04Q7/22 ,  H04L12/56

    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通过基于竞争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。 预定义的突发可以仅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发送到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解码小于所有数据流。 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。

    GENERATING A SERVING GRANT BASED ON A RECEIVED RELATIVE GRANT
    46.
    发明申请
    GENERATING A SERVING GRANT BASED ON A RECEIVED RELATIVE GRANT 审中-公开

    公开(公告)号：WO2007027512A3

    公开(公告)日：2007-03-08

    申请号：PCT/US2006/033149

    申请日：2006-08-24

    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  PAN, Kyle Jung-Lin ,  YANG, Rui ,  REZNIK, Alexander

    Inventor： PAN, Kyle Jung-Lin ,  YANG, Rui ,  REZNIK, Alexander

    IPC: H04Q7/20

    Abstract: A wireless communication method and apparatus for generating a scheduling grant based on a relative grant are disclosed. A wireless transmit/receive unit (WTRU) receives an absolute grant from a serving radio link set (RLS) and receives a relative grant from the serving RLS and at least one non-serving radio link (RL). The WTRU decodes enhanced dedicated channel (E-DCH) absolute grant channel (E-AGCH)E-AGCH signals to detect an absolute grant, and decodes E-DCH relative grant channel (E-RGCH)E-RGCH signals to detect at least one relative grant. The WTRU then calculates a serving grant based on the detected absolute grant and/or the relative grant(s). The relative grant may be detected by performing a hypothesis test on the E-RGCH signals. A multiple alternative hypothesis test is performed for detecting the E-RGCH signals from the serving RLS and a binary hypothesis test is performed for detecting the E-RGCH signals from the at least one non-serving RL. A reliability test may be further performed on the E-RGCH signals.

    METHOD AND APPARATUS FOR RATE COMPATIBLE DIRTY PAPER CODING
    47.
    发明申请
    METHOD AND APPARATUS FOR RATE COMPATIBLE DIRTY PAPER CODING 审中-公开
    用于速率兼容的二进制编码的方法和装置

    公开(公告)号：WO2006101812A2

    公开(公告)日：2006-09-28

    申请号：PCT/US2006/009004

    申请日：2006-03-10

    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  REZNIK, Alexander ,  TU, Zhenyu ,  ZHANG, Guodong

    Inventor： REZNIK, Alexander ,  TU, Zhenyu ,  ZHANG, Guodong

    IPC: H04N11/04

    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: 介质访问控制（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。

    MIMO AIR INTERFACE UTILIZING DIRTY PAPER CODING
    48.
    发明申请
    MIMO AIR INTERFACE UTILIZING DIRTY PAPER CODING 审中-公开

    公开(公告)号：WO2006101710A3

    公开(公告)日：2006-09-28

    申请号：PCT/US2006/007967

    申请日：2006-03-06

    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  REZNIK, Alexander ,  ZHANG, Guodong ,  SHIN, Sung-Hyuk ,  TU, Zhenyu

    Inventor： REZNIK, Alexander ,  ZHANG, Guodong ,  SHIN, Sung-Hyuk ,  TU, Zhenyu

    IPC: H04K1/10

    Abstract: A transceiver comprising a data processing module, a security processing module, a medium access control (MAC) module, a dirty-paper-coding (DPC) module, and a smart antenna processor. The data processing module provides user data streams to the MAC module and channel state information to the smart antenna processor. The security processing module generates security data and provides the security data to the MAC module. The security module also provides security policy data to the smart antenna processor. The MAC module determines data transmission rates for the user data streams and the security data. In addition, the MAC module allocates the data streams and security data to transmission channels for transmission. The DPC module encodes the security data onto the user data streams. The smart antenna processor generates pre-coding coefficients used by the DPC module and transmits the security encoded data streams.

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