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    • 3. 发明申请
    • COMPONENTS AND METHODS FOR PROCESSING WIRELESS COMMUNICATION DATA IN PRESENCE OF FORMAT UNCERTAINTY
    • 处理格式不确定性无线通信数据的组件和方法
    • WO2004077722A2
    • 2004-09-10
    • PCT/US2004/004658
    • 2004-02-18
    • INTERDIGITAL TECHNOLOGY CORPORATIONREZNIK, AlexanderHEPLER, Edward, L.
    • REZNIK, AlexanderHEPLER, Edward, L.
    • H04L
    • 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 not available. 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 in formats selected from among a set of predefined formats. The WTRU has a receiver, a memory, a received chip rate processor (RCRP), a format detector and a de-interleaver. The RCRP is preferably configured to despread each wireless signal of spread data received in each time frame using a minimum spreading code or other appropriate key sequence and to store resultant despread data for each respective time frame in the memory. The format detector is preferably configured to determine the number of physical channels and the respective spreading factor for each physical channel for the wireless signal of spread data received in each time frame. The de-interleaver is preferably configured to de-interleave the stored data despread by the RCRP for each respective time frame into the number of physical channels determined by the format detector for the respective time frame.
    • 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,其中所选信道的通信数据以系统时间帧的形式从一组预定格式中选择。 WTRU具有接收机,存储器,接收的码片速率处理器(RCRP),格式检测器和解交织器。 优选地,RCRP被配置为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,并且将每个相应时间帧的合成解扩数据存储在存储器中。 格式检测器优选地被配置为确定在每个时间帧中接收的扩展数据的无线信号的物理信道的数量和每个物理信道的相应扩展因子。 解交织器优选地被配置为将用于每个相应时间帧的由RCRP解扩的存储的数据解交织成由各个时间帧由格式检测器确定的物理信道的数量。
    • 5. 发明申请
    • SYMBOL RATE HARDWARE ACCELERATOR
    • 符号率硬件加速器
    • WO2008008512A2
    • 2008-01-17
    • PCT/US2007/016031
    • 2007-07-12
    • INTERDIGITAL TECHNOLOGY CORPORATIONHEPLER, Edward, L.
    • HEPLER, Edward, L.
    • H04L1/00
    • H04L1/0043H04L1/0065H04L1/0071
    • A hardware accelerator includes a first buffer, a second buffer, address generator(s), a translation read-only memory (ROM), a cyclic redundancy check (CRC) generator, a convolutional encoder and a controller. The first and second buffers store information bits. The address generator(s) generate(s) an address for accessing the first buffer, the second buffer and a shared memory architecture (SMA). The translation ROM is used in generating a translated address for accessing the first buffer and the second buffer. The controller sets parameters for the CRC generator, the convolutional encoder and the address generator, and performs a predefined sequence of control commands for channel processing, such as reordering, block coding, parity tailing, puncturing, convolutional encoding, and interleaving, on the information bits by manipulating the information bits while moving the information bits among the first buffer, the second buffer, the SMA, the CRC generator, and the convolutional encoder.
    • 硬件加速器包括第一缓冲器,第二缓冲器,地址生成器,翻译只读存储器(ROM),循环冗余校验(CRC)生成器,卷积编码器和卷积编码器 控制器。 第一和第二缓冲器存储信息位。 地址生成器生成用于访问第一缓冲器,第二缓冲器和共享存储器体系结构(SMA)的地址。 翻译ROM用于生成用于访问第一缓冲区和第二缓冲区的翻译地址。 控制器为CRC生成器,卷积编码器和地址生成器设置参数,并对信息执行用于信道处理(诸如重新排序,块编码,奇偶拖尾,穿孔,卷积编码和交织)的预定义序列的控制命令 通过在第一缓冲器,第二缓冲器,SMA,CRC发生器和卷积编码器之间移动信息比特的同时操纵信息比特来实现。
    • 10. 发明申请
    • METHOD AND APPARATUS FOR CONTENTION-FREE INTERLEAVING USING A SINGLE MEMORY
    • 使用单个存储器进行无间断交换的方法和装置
    • WO2009134846A1
    • 2009-11-05
    • PCT/US2009/042046
    • 2009-04-29
    • INTERDIGITAL PATENT HOLDINGS, INC.HEPLER, Edward, L.NARAYAN, Geetha, L.
    • HEPLER, Edward, L.NARAYAN, Geetha, L.
    • H03M13/27H03M13/29
    • H03M13/2775H03M13/2739H03M13/2764H03M13/2957H04L1/0071
    • A method and apparatus for contention free interleaving are disclosed. A single memory configured to use an address scheme wherein the most significant bits (MSBs) indicate which word in memory stores an interleaved piece of data. The least significant bits (LSBs) are used to calculate an index that identifies a specific soft-in/soft-out (SISO) decoder associated with a sub-word of the retrieved data. Using an interleaved address generator, the extrinsic data may be written into the memory in sequential order, but read out from the memory in interleaved order, effectively de-interleaving the data so it may be decoded. The generated interleaved address is used by SISO selector circuit which controls a multiplexer that routes the sub-word to its appropriate SISO decoder. The same address generator may be used to write interleaved extrinsic data from SISOs by reordering the sub-words, allowing the extrinsic data to be read in sequential order.
    • 公开了一种无争用交错的方法和装置。 配置为使用地址方案的单个存储器,其中最高有效位(MSB)指示存储器中的哪个字存储交错数据段。 最低有效位(LSB)用于计算识别与检索的数据的子字相关联的特定软入/软出(SISO)解码器的索引。 使用交错地址生成器,外部数据可以按顺序写入存储器,但是以交错顺序从存储器读出,有效地对数据进行解交织,以便其被解码。 生成的交错地址由SISO选择器电路使用,SISO选择器电路控制将子字路由到其适当的SISO解码器的多路复用器。 相同的地址生成器可以用于通过重新排序子字来从SISO写入交织的外部数据,从而允许按顺序读取外部数据。