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    • 3. 发明申请
    • METHOD AND APPARATUS FOR PERFORMING JRNSO IN FDD, TDD AND MIMO COMMUNICATIONS
    • 用于在FDD,TDD和MIMO通信中执行未授权的方法和设备
    • WO2009005878A3
    • 2009-04-16
    • PCT/US2008061045
    • 2008-04-21
    • INTERDIGITAL TECH CORPGOLDBERG STEVEN JSHAH YOGENDRA CREZNIK ALEXANDER
    • GOLDBERG STEVEN JSHAH YOGENDRA CREZNIK ALEXANDER
    • H04L9/08
    • H04L9/28H04L5/1469H04L9/0838H04L9/0875H04L25/0204H04L25/0224H04L2209/08H04L2209/80H04W12/04
    • 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.
    • 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。
    • 4. 发明申请
    • METHOD AND APPARATUS FOR RATE COMPATIBLE DIRTY PAPER CODING
    • 用于速率兼容的二进制编码的方法和装置
    • WO2006101812A3
    • 2009-04-16
    • PCT/US2006009004
    • 2006-03-10
    • INTERDIGITAL TECH CORPREZNIK ALEXANDERTU ZHENYUZHANG GUODONG
    • REZNIK ALEXANDERTU ZHENYUZHANG GUODONG
    • H04W88/06H04W4/06H04W28/22H04W52/322H04W52/367
    • 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.
    • 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。
    • 6. 发明申请
    • PROCESSING WIRELESS COMMUNICATION DATA IN PRESENCE OF FORMAT UNCERTAINTY
    • 处理格式不确定性的无线通信数据
    • WO2004077722A3
    • 2006-06-08
    • PCT/US2004004658
    • 2004-02-18
    • INTERDIGITAL TECH CORPREZNIK ALEXANDERHEPLER EDWARD L
    • REZNIK ALEXANDERHEPLER EDWARD L
    • H04B1/707H04L1/00H04L1/18
    • H04L1/1829H04B1/707H04L1/0006H04L1/0025H04L1/0032H04L1/0071
    • 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.
    • 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。