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    A METHOD AND SYSTEM FOR ENHANCING CRYPTOGRAPHIC CAPABILITIES OF A WIRELESS DEVICE USING BROADCASTED RANDOM NOISE
    21.
    发明申请
    A METHOD AND SYSTEM FOR ENHANCING CRYPTOGRAPHIC CAPABILITIES OF A WIRELESS DEVICE USING BROADCASTED RANDOM NOISE 审中-公开
    一种使用广播随机噪声增强无线设备的拼接能力的方法和系统

    公开(公告)号：WO2008118136A2

    公开(公告)日：2008-10-02

    申请号：PCT/US2007/021854

    申请日：2007-10-12

    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  REZNIK, Alexander ,  BRIANCON, Alain Charles, Louis ,  DODIS, Yevgeniy ,  SHAH, Yogendra, C. ,  YE, Chunxuan ,  DIFAZIO, Robert, A. ,  CHA, Inhyok

    Inventor： REZNIK, Alexander ,  BRIANCON, Alain Charles, Louis ,  DODIS, Yevgeniy ,  SHAH, Yogendra, C. ,  YE, Chunxuan ,  DIFAZIO, Robert, A. ,  CHA, Inhyok

    IPC: H04L9/08

    CPC classification number: H04W12/04 ,  H04L9/065 ,  H04L9/0869 ,  H04L9/0875 ,  H04L63/0457 ,  H04L2209/08 ,  H04L2209/80 ,  H04W12/02

    Abstract: A secret stream of bits begins by receiving a public random stream contained in a wireless communication signal at a transmit/receive unit. The public random stream is sampled and specific bits are extracted according to a shared common secret. These extracted bits are used to create a longer secret stream. The shared common secret may be generated using JRNSO techniques, or provided to the transmit/receive units prior to the communication session. Alternatively, one of the transmit/receive unit is assumed to be more powerful than any potential eavesdropper. In this situation, the powerful transmit/receive unit may broadcast and store a public random stream. The weaker transmit/receive unit selects select random bits of the broadcast for creating a key. The weaker transmit/receive unit sends the powerful transmit/receive unit the selected bit numbers, and powerful transmit/receive unit uses the random numbers to produce the key created by the weaker transmit/receive unit.

    Abstract translation: 秘密的比特流开始于在发送/接收单元处接收包含在无线通信信号中的公共随机流。 公共随机流被采样，并且根据共享的公共秘密提取特定位。 这些提取的比特用于创建更长的秘密流。 可以使用JRNSO技术生成共享公用秘密，或者在通信会话之前提供给发送/接收单元。 或者，假设发射/接收单元之一比任何潜在的窃听者更强大。 在这种情况下，强大的发送/接收单元可以广播和存储公共随机流。 较弱的发送/接收单元选择用于创建密钥的广播的选择随机比特。 较弱的发射/接收单元发送强大的发射/接收单元所选择的位号，强大的发射/接收单元使用随机数产生由较弱发射/接收单元产生的密钥。

    METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING MULTIMEDIA BROADCAST MULTICAST SERVICES VIA A DEDICATED DOWNLINK CARRIER
    22.
    发明申请
    METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING MULTIMEDIA BROADCAST MULTICAST SERVICES VIA A DEDICATED DOWNLINK CARRIER 审中-公开
    用于通过专用下行链路传输和接收多媒体广播多播服务的方法和装置

    公开(公告)号：WO2008082572A1

    公开(公告)日：2008-07-10

    申请号：PCT/US2007/026248

    申请日：2007-12-21

    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  REZNIK, Alexander ,  ZEIRA, Eldad, M. ,  YE, Chunxuan

    Inventor： REZNIK, Alexander ,  ZEIRA, Eldad, M. ,  YE, Chunxuan

    IPC: H04L12/56 ,  H04Q7/22

    CPC classification number: H04W72/005

    Abstract: A method and apparatus for wireless communication of multimedia broadcast multicast services (MBMS) data and unicast data using separate downlink carriers and are disclosed. A wireless transmit/receive unit (WTRU) having a single receiver that is switchable to receive either carrier is provided. A network station, such as a Node-B, preferably encodes K MBMS data packets to N MBMS encoded packets using erasure correction coding where N is preferably significantly greater than ( K + v ) which is a determined number of MBMS encoded packets sufficient to recover the K MBMS data packets. The Node-B preferably generates a superframe for carrying the N MBMS encoded packets for each MBMS and transmits the superframe via an MBMS carrier. The Node-B preferably schedules a unicast transmission such that the WTRU is provided with sufficient time to switch to the MBMS carrier to receive at least ( K + v ) MBMS encoded packets per superframe.

    Abstract translation: 公开了一种使用单独的下行链路载波来进行多媒体广播多播服务（MBMS）数据和单播数据的无线通信的方法和装置。 提供了具有可转换以接收任一运营商的单个接收机的无线发射/接收单元（WTRU）。 诸如节点B的网络站优选地使用消除校正编码将N个MBMS编码分组的K个MBMS数据分组编码为N，其中N优选地显着大于（K + v），其是确定数量的足以恢复的MBMS编码分组 K个MBMS数据包。 节点B优选地生成用于为每个MBMS携带N个MBMS编码分组的超帧，并且经由MBMS载波发送超帧。 节点B优选地调度单播传输，使得WTRU被提供足够的时间来切换到MBMS载波以每个超帧至少接收（K + v）个MBMS编码分组。

    METHOD AND APPARATUS FOR CONTROLLING TRANSMISSION OF A CHANNEL QUALITY INDICATOR
    24.
    发明申请
    METHOD AND APPARATUS FOR CONTROLLING TRANSMISSION OF A CHANNEL QUALITY INDICATOR 审中-公开
    控制信道质量指示器传输的方法和设备

    公开(公告)号：WO2008021188A2

    公开(公告)日：2008-02-21

    申请号：PCT/US2007/017722

    申请日：2007-08-09

    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  REZNIK, Alexander

    Inventor： REZNIK, Alexander

    IPC: H04L1/00

    CPC classification number: H04L1/0026

    Abstract: A method and apparatus for controlling transmission of a channel quality indicator (CQI) in a wireless communication system are disclosed. A wireless transmit/receive unit (WTRU) determines, at each transmission time interval (TTI), whether a CQI timer has expired. The CQI timer is reset each time a CQI is sent out by the WTRU. If the CQI timer has expired, the WTRU determines whether a CQI reporting opportunity exists in a current TTI. The WTRU sends a CQI if a CQI reporting opportunity exists in the current TTI. Otherwise, the WTRU waits for a next TTI. The CQI reporting opportunity exists when there is uplink data to be transmitted in the current TTI, when the WTRU needs to send a positive acknowledgement (ACK) or a negative acknowledgement (NACK) in the current TTI, or when a dedicated physical control channel (DPCCH) burst is scheduled to be transmitted in the current TTI.

    Abstract translation: 公开了一种用于在无线通信系统中控制信道质量指示符（CQI）的传输的方法和设备。 无线发射/接收单元（WTRU）在每个传输时间间隔（TTI）确定CQI定时器是否已经到期。 每当CQI由WTRU发出时，CQI定时器被重置。 如果CQI定时器已经到期，则WTRU确定在当前TTI中是否存在CQI报告机会。 如果在当前TTI中存在CQI报告机会，则WTRU发送CQI。 否则，WTRU等待下一个TTI。 当在当前TTI中存在要发送的上行链路数据时，当WTRU需要在当前TTI中发送肯定确认（ACK）或否定确认（NACK）时，或者当专用物理控制信道（ DPCCH）突发被安排在当前TTI中传输。

    METHOD AND APPARATUS FOR ENHANCING SECURITY OF WIRELESS COMMUNICATIONS
    25.
    发明申请
    METHOD AND APPARATUS FOR ENHANCING SECURITY OF WIRELESS COMMUNICATIONS 审中-公开
    用于增强无线通信安全的方法和装置

    公开(公告)号：WO2006076187A2

    公开(公告)日：2006-07-20

    申请号：PCT/US2006/000124

    申请日：2006-01-03

    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  SHIN, Sung-Hyuk ,  REZNIK, Alexander ,  ZHANG, Guodong ,  CHITRAPU, Prabhakar, R.

    Inventor： SHIN, Sung-Hyuk ,  REZNIK, Alexander ,  ZHANG, Guodong ,  CHITRAPU, Prabhakar, R.

    IPC: H04L9/00

    CPC classification number: H04L63/123 ,  G10L19/018 ,  H04L63/0428 ,  H04L63/0838 ,  H04L63/16 ,  H04W12/02 ,  H04W12/10

    Abstract: The present invention is related to a method and apparatus for enhancing security of communications. The apparatus comprises a security processing unit, a data processing unit, a cross-layer watermarking unit, and optionally a smart antenna processor. The security processing unit generates a token/key to be used in watermarking and sends a node security policy to other components. The data processing unit generates user data. The cross-layer watermarking unit includes at least one of Layer-2/3, Layer-1 and Layer-0. Each layer performs a different scheme or degree of watermarking. The cross-layer watermarking unit embeds the token/key into the user data transmission on at least one of the layers selectively in accordance with a security policy.

    Abstract translation: 本发明涉及一种增强通信安全性的方法和装置。 该装置包括安全处理单元，数据处理单元，跨层水印单元以及任选的智能天线处理器。 安全处理单元生成要在水印中使用的令牌/密钥，并向其他组件发送节点安全策略。 数据处理单元生成用户数据。 跨层水印单元包括层2/3，层1和层0中的至少一个。 每个层执行不同的方案或水印程度。 跨层水印单元根据安全策略选择性地将令牌/密钥嵌入到至少一个层上的用户数据传输中。

    LINK-QUALITY ESTIMATION METHOD AND COMPONENTS FOR MULTI-USER WIRELESS COMMUNICAITON SYSTEMS
    27.
    发明申请
    LINK-QUALITY ESTIMATION METHOD AND COMPONENTS FOR MULTI-USER WIRELESS COMMUNICAITON SYSTEMS 审中-公开
    多用户无线通信系统的链路质量估计方法和组件

    公开(公告)号：WO2004070984A2

    公开(公告)日：2004-08-19

    申请号：PCT/US2004/001083

    申请日：2004-01-15

    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  REZNIK, Alexander

    Inventor： REZNIK, Alexander

    IPC: H04L

    CPC classification number: H04W52/241 ,  H04B17/336 ,  H04W52/12 ,  H04W52/143 ,  H04W52/20 ,  H04W52/225

    Abstract: Received signal characteristics of multiple concurrently received channels are determined using an analytical approach for computation in lieu of the measurement based approach of the prior art. A receiving wireless transmit receive unit (WTRU) and method are provided for processing concurrent communication signals from a plurality of transmitting WTRUs that concurrently transmit successive data blocks in a plurality of K forward channels. The receiving WTRU preferably has a receiver configured to receive successive data blocks of K concurrent transmissions transmitted from the transmitting WTRUs on the respective K forward channels. A processor is configured to compute individual channel characteristics for each forward channel k based on the characteristics of data signals received on all K forward channel. The processor is preferably configured to successively compute instantaneous Signal to Interference Ratio values for each forward channel j (iSIRj), for integers j = 1 to K, based on a cross correlation matrix of channel response characteristics of K concurrently received data blocks and to selectively compute an average value that is used for the computing the individual channel characteristics for the forward channel k. The individual channel characteristics are advantageously used for power control or for the processing of the data blocks received on the respective forward channels.

    Abstract translation: 使用用于计算的分析方法代替现有技术的基于测量的方法来确定多个同时接收的信道的接收信号特性。 提供了一种接收无线发射接收单元（WTRU）和方法，用于处理来自多个发送WTRU的并发通信信号，所述多个发送WTRU同时发送多个K个前向信道中的连续数据块。 接收WTRU优选地具有接收机，其被配置为从相应的K个前向信道上的发射WTRU接收从K个并发传输的连续的数据块。 处理器被配置为基于在所有K个前向信道上接收的数据信号的特性来计算每个前向信道k的各个信道特性。 优选地，处理器被配置为基于K个同时接收的数据块的信道响应特性的互相关矩阵，并且对于整数j = 1至K，针对每个前向信道j（iSIRj），连续地计算瞬时信噪比值 计算用于计算前向信道k的各个信道特性的平均值。 单个信道特性有利地用于功率控制或用于处理在各个前向信道上接收的数据块。

    DATA DETECTION FOR CODES WITH NON-UNIFORM SPREADING FACTORS
    28.
    发明申请
    DATA DETECTION FOR CODES WITH NON-UNIFORM SPREADING FACTORS 审中-公开

    公开(公告)号：WO2004004151A3

    公开(公告)日：2004-01-08

    申请号：PCT/US2003/019858

    申请日：2003-06-23

    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

    Inventor： KIM, Younglok ,  PAN, Jung-Lin ,  ZEIRA, Ariela ,  REZNIK, Alexander

    IPC: H04B1/69

    Abstract: A plurality of communication signals is received. Each communication signal has an associated code. At least two of the communication signals has a different spreading factor. The associated codes have a scrambling code period. A total system response matrix has blocks. Each block has one dimension of a length M and another dimension of a length based on in part M and the spreading factor of each communication. M is based on the scrambling code period. Data of the received plurality of communication signals is received using the constructed system response matrix.

    MULTIUSER DETECTOR FOR VARIABLE SPREADING FACTORS
    29.
    发明申请
    MULTIUSER DETECTOR FOR VARIABLE SPREADING FACTORS 审中-公开

    公开(公告)号：WO2003107688A3

    公开(公告)日：2003-12-24

    申请号：PCT/US2003/018438

    申请日：2003-06-11

    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

    Inventor： KIM, Younglok ,  PAN, Jung-Lin ,  ZEIRA, Ariela ,  REZNIK, Alexander

    IPC: H04J13/02

    Abstract: A plurality of communication signals have differing spreading codes. Each communication has an associated code comprising chips. For each chip of each communication, a vector of that chip convolved with an impulse response is produced. For each communication, support blocks comprising the chip vectors are produced (302). A number of the chip vectors in a support block is based on that communication's spreading factor. A system response matrix is assembled. The system response matrix is assembled (306). The system response matrix has symbol sub-matrices (304). Each symbol sub-matrix comprises a support block from each communication. Data of the communications is detected using the symbol response matrix.

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